diff options
Diffstat (limited to 'contrib')
44 files changed, 0 insertions, 15265 deletions
diff --git a/contrib/diff/Makefile.am b/contrib/diff/Makefile.am deleted file mode 100644 index 87f7c3d..0000000 --- a/contrib/diff/Makefile.am +++ /dev/null @@ -1,23 +0,0 @@ -# Main Automakefile for GNU diffutils. - -# Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc. - -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2, or (at your option) -## any later version. - -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. - -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -## 02111-1307, USA. - -EXTRA_DIST = bootstrap exgettext -SUBDIRS = doc lib m4 ms src man po - -ACLOCAL_AMFLAGS = -I m4 diff --git a/contrib/diff/bootstrap b/contrib/diff/bootstrap deleted file mode 100755 index f72f57d..0000000 --- a/contrib/diff/bootstrap +++ /dev/null @@ -1,180 +0,0 @@ -#! /bin/sh - -# Bootstrap this package from CVS. - -# Copyright (C) 2003, 2004 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -# 02111-1307, USA. - -# Written by Paul Eggert. - -package=diffutils - -# Parse options. - -for option -do - case $option in - --help) - echo "$0: usage: $0 [--gnulib-srcdir=DIR] [--cvs-auth=AUTH-METHOD] [--cvs-user=USERNAME] [--skip-po]" - exit;; - --gnulib-srcdir=*) - GNULIB_SRCDIR=`expr "$1" : '--gnulib-srcdir=\(.*\)'`;; - --cvs-auth=*) - CVS_AUTH=`expr "$1" : '--cvs-auth=\(.*\)'`;; - --cvs-user=*) - CVS_USER=`expr "$1" : '--cvs-user=\(.*\)'`;; - --skip-po) - SKIP_PO=t;; - *) - echo >&2 "$0: $option: unknown option" - exit 1;; - esac -done - -echo "$0: Bootstrapping CVS $package..." - -build_cvs_prefix() { - CVS_PREFIX=:${1}: - if [ "${2}" != - ]; then - CVS_PREFIX=${CVS_PREFIX}${2}@ - fi -} - -# Get gnulib files. - -case ${GNULIB_SRCDIR--} in --) - if [ ! -d gnulib ]; then - echo "$0: getting gnulib files..." - - trap exit 1 2 13 15 - trap 'rm -fr gnulib; exit 1' 0 - - case "${CVS_AUTH--}" in - -) : ${CVS_RSH:?} - CVS_PREFIX="";; - pserver) build_cvs_prefix $CVS_AUTH ${CVS_USER:-anoncvs};; - gserver|server) - build_cvs_prefix $CVS_AUTH ${CVS_USER--};; - ext) : ${CVS_RSH:?} - build_cvs_prefix $CVS_AUTH ${CVS_USER--};; - *) echo "$0: Unknown CVS access method" >&2 - exit 1;; - esac - if [ "${CVS_AUTH--}" = "pserver" ]; then - cvs -d ${CVS_PREFIX}subversions.gnu.org:/cvsroot/gnulib login || exit - fi - cvs -q -d ${CVS_PREFIX}subversions.gnu.org:/cvsroot/gnulib co gnulib || exit - - trap 0 - fi - GNULIB_SRCDIR=gnulib -esac - -<$GNULIB_SRCDIR/gnulib-tool || exit - -gnulib_modules=' -c-stack -dirname -error -exclude -exit -exitfail -file-type -fnmatch-gnu -getopt -hard-locale -inttostr -mkstemp -posixver -regex -strcase -strftime -strtoumax -unlocked-io -version-etc -xalloc -xstrtoumax -' - -previous_gnulib_modules= -while [ "$gnulib_modules" != "$previous_gnulib_modules" ]; do - previous_gnulib_modules=$gnulib_modules - gnulib_modules=` - (echo "$gnulib_modules" - for gnulib_module in $gnulib_modules; do - $GNULIB_SRCDIR/gnulib-tool --extract-dependencies $gnulib_module - done) | sort -u - ` -done - -gnulib_files=` - (for gnulib_module in $gnulib_modules; do - $GNULIB_SRCDIR/gnulib-tool --extract-filelist $gnulib_module - done) | sort -u -` - -gnulib_dirs=`echo "$gnulib_files" | sed 's,/[^/]*$,,' | sort -u` -mkdir -p $gnulib_dirs || exit - -for gnulib_file in $gnulib_files; do - dest=$gnulib_file - - case $gnulib_file in - m4/onceonly_2_57.m4) dest=m4/onceonly.m4;; - esac - - rm -f $dest && - echo "$0: Copying file $GNULIB_SRCDIR/$gnulib_file" && - cp -p $GNULIB_SRCDIR/$gnulib_file $dest || exit -done - - -# Get translations. - -case $SKIP_PO in -'') - echo "$0: getting translations into po..." - (cd po && - rm -f dummy `ls | sed -n '/\.gmo$/p; /\.po/p'` && - wget -nv -nd -r -l 1 -A .po -C off \ - http://www2.iro.umontreal.ca/~gnutra/po/maint/$package/ && - ls *.po | sed 's/\.po$//' >LINGUAS - ) || exit;; -esac - - -# Reconfigure, getting other files. - -echo "$0: autoreconf --verbose --install --force ..." -autoreconf --verbose --install --force || exit - - -# Generate autoconf and automake snippets. - -(echo '# This file is generated automatically by "bootstrap".' && - echo 'AC_DEFUN([GNULIB_AUTOCONF_SNIPPET],[' && - $GNULIB_SRCDIR/gnulib-tool --extract-autoconf-snippet $gnulib_modules && - echo '])' -) >m4/gnulib.m4 || exit - -(echo '# This file is generated automatically by "bootstrap".' && - $GNULIB_SRCDIR/gnulib-tool --extract-automake-snippet $gnulib_modules -) >lib/gnulib.mk || exit - - -echo "$0: done. Now you can run './configure'." diff --git a/contrib/diff/doc/Makefile.am b/contrib/diff/doc/Makefile.am deleted file mode 100644 index 574fdab..0000000 --- a/contrib/diff/doc/Makefile.am +++ /dev/null @@ -1,24 +0,0 @@ -# Makefile for GNU diffutils documentation. - -# Copyright (C) 2001, 2002 Free Software Foundation, Inc. - -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2, or (at your option) -## any later version. - -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. - -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software Foundation, -## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -AM_MAKEINFOFLAGS = --no-split - -info_TEXINFOS = diff.texi -diff_TEXINFOS = fdl.texi - -EXTRA_DIST = diagmeet.note diff --git a/contrib/diff/doc/diagmeet.note b/contrib/diff/doc/diagmeet.note deleted file mode 100644 index 8f7242c..0000000 --- a/contrib/diff/doc/diagmeet.note +++ /dev/null @@ -1,71 +0,0 @@ -Here is a comparison matrix which shows a case in which -it is possible for the forward and backward scan in `diag' -to meet along a nonzero length of diagonal simultaneous -(so that bdiag[d] and fdiag[d] are not equal) -even though there is no snake on that diagonal at the meeting point. - - - 85 1 1 1 159 1 1 17 - 1 2 3 4 -60 - 1 2 -1 - 2 2 3 4 -71 - 3 3 4 5 -85 - 4 3 4 5 -17 - 5 4 5 -1 - 6 4 5 6 -183 - 7 5 6 7 -10 - 8 6 7 -1 - 9 6 7 8 -12 - 7 8 9 10 -13 - 10 8 9 10 -14 - 10 9 10 -17 - 10 10 -1 - 10 9 10 -1 - 8 10 10 10 -183 - 8 7 9 9 9 -10 - 7 6 8 9 8 8 -1 - 6 5 7 7 -1 - 5 6 6 -1 - 5 5 5 -50 - 5 4 4 4 -1 - 4 3 3 -85 - 5 4 3 2 2 -1 - 2 1 -17 - 5 4 3 2 1 1 -1 - 1 0 - 85 1 1 1 159 1 1 17 - - - - - - - - - diff --git a/contrib/diff/exgettext b/contrib/diff/exgettext deleted file mode 100755 index 4fef5ed..0000000 --- a/contrib/diff/exgettext +++ /dev/null @@ -1,115 +0,0 @@ -#! /bin/sh -# Wrapper around gettext for programs using the msgid convention. - -# Copyright (C) 1998, 2001, 2004 Free Software Foundation, Inc. - -# Written by Paul Eggert <eggert@twinsun.com>. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with GNU CC; see the file COPYING. If not, write to -# the Free Software Foundation, 59 Temple Place - Suite 330, -# Boston, MA 02111-1307, USA. - -# Always operate in the C locale. -LANG=C -LANGUAGE=C -LC_ALL=C -export LANG LANGUAGE LC_ALL - -# Set AWK if environment has not already set it. -AWK=${AWK-awk} - -# The argument to this wrapper is the xgettext command to be executed. -# Extract the xgettext program name from the rest of the command. -xgettext=${1?} -shift - -# Save work if we're just wrapping a no-op. -case $xgettext in -:) exit;; -esac - -# Find the files to be scanned, and the directory to scan them from. -directory=. -files= -for i -do - case $i in - --directory=*) - directory=`expr " $i" : ' --directory=\(.*\)'`;; - --files-from=*) - files_from=`expr " $i" : ' --files-from=\(.*\)'` - files=`$AWK '/^[^#]/ { print }' $files_from`;; - esac -done - -# Generate keyword options for xgettext, -# by scanning for declarations of functions -# whose parameter names end in "msgid". -generate_keyword_options=' - /^[A-Z_a-z].*\(.*msgid[,)]/ { - - paren_index = index($0, "(") - - name = substr($0, 1, paren_index - 1) - sub(/[^0-9A-Z_a-z]*$/, "", name) - sub(/[ ]+PARAMS/, "", name) - sub(/[ ]+VPARAMS/, "", name) - sub(/.*[^0-9A-Z_a-z]/, "", name) - - args = substr($0, paren_index) - sub(/msgid[,)].*/, "", args) - for (n = 1; sub(/^[^,]*,/, "", args); n++) { - continue; - } - - if (n == 1) { - keyword = name - } else { - keyword = name ":" n - } - - if (! keyword_seen[keyword]++) { - print "--keyword=" keyword - } - } -' -keyword_options=`( - cd $directory && - $AWK "$generate_keyword_options" $files < /dev/null -)` || exit - -# Run the xgettext command, with extra input containing the extra -# msgids that it wouldn't normally find. -generate_emsgids=' - /%e.*}/ { - line = $0 - while ((percent_index = index(line, "%e")) != 0) { - line = substr(line, percent_index + 2) - bracket_index = index(line, "}") - if (bracket_index == 0) { - continue - } - msgid = substr(line, 1, bracket_index - 1) - if (index(msgid, "%") != 0) { - continue - } - printf "#line %d \"%s\"\n", FNR, FILENAME - printf "_(\"%s\")\n", msgid - line = substr(line, bracket_index + 1) - } - } -' -(cd $directory && - $AWK "$generate_emsgids" $files < /dev/null -) | "$xgettext" $keyword_options ${1+"$@"} - diff --git a/contrib/diff/lib/Makefile.am b/contrib/diff/lib/Makefile.am deleted file mode 100644 index dbf8b0f..0000000 --- a/contrib/diff/lib/Makefile.am +++ /dev/null @@ -1,35 +0,0 @@ -# Automakefile for GNU Diffutils library. - -# Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc. - -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2, or (at your option) -## any later version. - -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. - -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -## 02111-1307, USA. - -noinst_LIBRARIES = libdiffutils.a - -noinst_HEADERS = cmpbuf.h prepargs.h quotesys.h - -libdiffutils_a_SOURCES = $(lib_SOURCES) -lib_SOURCES = cmpbuf.c prepargs.c quotesys.c - -libdiffutils_a_LIBADD = @ALLOCA@ @LIBOBJS@ -libdiffutils_a_DEPENDENCIES = $(libdiffutils_a_LIBADD) - -BUILT_SOURCES = -DISTCLEANFILES = -EXTRA_DIST = setmode.h waitpid.c -MOSTLYCLEANFILES = - -include gnulib.mk diff --git a/contrib/diff/lib/alloca.c b/contrib/diff/lib/alloca.c deleted file mode 100644 index a580078..0000000 --- a/contrib/diff/lib/alloca.c +++ /dev/null @@ -1,489 +0,0 @@ -/* alloca.c -- allocate automatically reclaimed memory - (Mostly) portable public-domain implementation -- D A Gwyn - - This implementation of the PWB library alloca function, - which is used to allocate space off the run-time stack so - that it is automatically reclaimed upon procedure exit, - was inspired by discussions with J. Q. Johnson of Cornell. - J.Otto Tennant <jot@cray.com> contributed the Cray support. - - There are some preprocessor constants that can - be defined when compiling for your specific system, for - improved efficiency; however, the defaults should be okay. - - The general concept of this implementation is to keep - track of all alloca-allocated blocks, and reclaim any - that are found to be deeper in the stack than the current - invocation. This heuristic does not reclaim storage as - soon as it becomes invalid, but it will do so eventually. - - As a special case, alloca(0) reclaims storage without - allocating any. It is a good idea to use alloca(0) in - your main control loop, etc. to force garbage collection. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <string.h> -#include <stdlib.h> - -#ifdef emacs -# include "lisp.h" -# include "blockinput.h" -# ifdef EMACS_FREE -# undef free -# define free EMACS_FREE -# endif -#else -# define memory_full() abort () -#endif - -/* If compiling with GCC 2, this file's not needed. */ -#if !defined (__GNUC__) || __GNUC__ < 2 - -/* If someone has defined alloca as a macro, - there must be some other way alloca is supposed to work. */ -# ifndef alloca - -# ifdef emacs -# ifdef static -/* actually, only want this if static is defined as "" - -- this is for usg, in which emacs must undefine static - in order to make unexec workable - */ -# ifndef STACK_DIRECTION -you -lose --- must know STACK_DIRECTION at compile-time -/* Using #error here is not wise since this file should work for - old and obscure compilers. */ -# endif /* STACK_DIRECTION undefined */ -# endif /* static */ -# endif /* emacs */ - -/* If your stack is a linked list of frames, you have to - provide an "address metric" ADDRESS_FUNCTION macro. */ - -# if defined (CRAY) && defined (CRAY_STACKSEG_END) -long i00afunc (); -# define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg)) -# else -# define ADDRESS_FUNCTION(arg) &(arg) -# endif - -/* Define STACK_DIRECTION if you know the direction of stack - growth for your system; otherwise it will be automatically - deduced at run-time. - - STACK_DIRECTION > 0 => grows toward higher addresses - STACK_DIRECTION < 0 => grows toward lower addresses - STACK_DIRECTION = 0 => direction of growth unknown */ - -# ifndef STACK_DIRECTION -# define STACK_DIRECTION 0 /* Direction unknown. */ -# endif - -# if STACK_DIRECTION != 0 - -# define STACK_DIR STACK_DIRECTION /* Known at compile-time. */ - -# else /* STACK_DIRECTION == 0; need run-time code. */ - -static int stack_dir; /* 1 or -1 once known. */ -# define STACK_DIR stack_dir - -static void -find_stack_direction (void) -{ - static char *addr = NULL; /* Address of first `dummy', once known. */ - auto char dummy; /* To get stack address. */ - - if (addr == NULL) - { /* Initial entry. */ - addr = ADDRESS_FUNCTION (dummy); - - find_stack_direction (); /* Recurse once. */ - } - else - { - /* Second entry. */ - if (ADDRESS_FUNCTION (dummy) > addr) - stack_dir = 1; /* Stack grew upward. */ - else - stack_dir = -1; /* Stack grew downward. */ - } -} - -# endif /* STACK_DIRECTION == 0 */ - -/* An "alloca header" is used to: - (a) chain together all alloca'ed blocks; - (b) keep track of stack depth. - - It is very important that sizeof(header) agree with malloc - alignment chunk size. The following default should work okay. */ - -# ifndef ALIGN_SIZE -# define ALIGN_SIZE sizeof(double) -# endif - -typedef union hdr -{ - char align[ALIGN_SIZE]; /* To force sizeof(header). */ - struct - { - union hdr *next; /* For chaining headers. */ - char *deep; /* For stack depth measure. */ - } h; -} header; - -static header *last_alloca_header = NULL; /* -> last alloca header. */ - -/* Return a pointer to at least SIZE bytes of storage, - which will be automatically reclaimed upon exit from - the procedure that called alloca. Originally, this space - was supposed to be taken from the current stack frame of the - caller, but that method cannot be made to work for some - implementations of C, for example under Gould's UTX/32. */ - -void * -alloca (size_t size) -{ - auto char probe; /* Probes stack depth: */ - register char *depth = ADDRESS_FUNCTION (probe); - -# if STACK_DIRECTION == 0 - if (STACK_DIR == 0) /* Unknown growth direction. */ - find_stack_direction (); -# endif - - /* Reclaim garbage, defined as all alloca'd storage that - was allocated from deeper in the stack than currently. */ - - { - register header *hp; /* Traverses linked list. */ - -# ifdef emacs - BLOCK_INPUT; -# endif - - for (hp = last_alloca_header; hp != NULL;) - if ((STACK_DIR > 0 && hp->h.deep > depth) - || (STACK_DIR < 0 && hp->h.deep < depth)) - { - register header *np = hp->h.next; - - free (hp); /* Collect garbage. */ - - hp = np; /* -> next header. */ - } - else - break; /* Rest are not deeper. */ - - last_alloca_header = hp; /* -> last valid storage. */ - -# ifdef emacs - UNBLOCK_INPUT; -# endif - } - - if (size == 0) - return NULL; /* No allocation required. */ - - /* Allocate combined header + user data storage. */ - - { - /* Address of header. */ - register header *new; - - size_t combined_size = sizeof (header) + size; - if (combined_size < sizeof (header)) - memory_full (); - - new = malloc (combined_size); - - if (! new) - memory_full (); - - new->h.next = last_alloca_header; - new->h.deep = depth; - - last_alloca_header = new; - - /* User storage begins just after header. */ - - return (void *) (new + 1); - } -} - -# if defined (CRAY) && defined (CRAY_STACKSEG_END) - -# ifdef DEBUG_I00AFUNC -# include <stdio.h> -# endif - -# ifndef CRAY_STACK -# define CRAY_STACK -# ifndef CRAY2 -/* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */ -struct stack_control_header - { - long shgrow:32; /* Number of times stack has grown. */ - long shaseg:32; /* Size of increments to stack. */ - long shhwm:32; /* High water mark of stack. */ - long shsize:32; /* Current size of stack (all segments). */ - }; - -/* The stack segment linkage control information occurs at - the high-address end of a stack segment. (The stack - grows from low addresses to high addresses.) The initial - part of the stack segment linkage control information is - 0200 (octal) words. This provides for register storage - for the routine which overflows the stack. */ - -struct stack_segment_linkage - { - long ss[0200]; /* 0200 overflow words. */ - long sssize:32; /* Number of words in this segment. */ - long ssbase:32; /* Offset to stack base. */ - long:32; - long sspseg:32; /* Offset to linkage control of previous - segment of stack. */ - long:32; - long sstcpt:32; /* Pointer to task common address block. */ - long sscsnm; /* Private control structure number for - microtasking. */ - long ssusr1; /* Reserved for user. */ - long ssusr2; /* Reserved for user. */ - long sstpid; /* Process ID for pid based multi-tasking. */ - long ssgvup; /* Pointer to multitasking thread giveup. */ - long sscray[7]; /* Reserved for Cray Research. */ - long ssa0; - long ssa1; - long ssa2; - long ssa3; - long ssa4; - long ssa5; - long ssa6; - long ssa7; - long sss0; - long sss1; - long sss2; - long sss3; - long sss4; - long sss5; - long sss6; - long sss7; - }; - -# else /* CRAY2 */ -/* The following structure defines the vector of words - returned by the STKSTAT library routine. */ -struct stk_stat - { - long now; /* Current total stack size. */ - long maxc; /* Amount of contiguous space which would - be required to satisfy the maximum - stack demand to date. */ - long high_water; /* Stack high-water mark. */ - long overflows; /* Number of stack overflow ($STKOFEN) calls. */ - long hits; /* Number of internal buffer hits. */ - long extends; /* Number of block extensions. */ - long stko_mallocs; /* Block allocations by $STKOFEN. */ - long underflows; /* Number of stack underflow calls ($STKRETN). */ - long stko_free; /* Number of deallocations by $STKRETN. */ - long stkm_free; /* Number of deallocations by $STKMRET. */ - long segments; /* Current number of stack segments. */ - long maxs; /* Maximum number of stack segments so far. */ - long pad_size; /* Stack pad size. */ - long current_address; /* Current stack segment address. */ - long current_size; /* Current stack segment size. This - number is actually corrupted by STKSTAT to - include the fifteen word trailer area. */ - long initial_address; /* Address of initial segment. */ - long initial_size; /* Size of initial segment. */ - }; - -/* The following structure describes the data structure which trails - any stack segment. I think that the description in 'asdef' is - out of date. I only describe the parts that I am sure about. */ - -struct stk_trailer - { - long this_address; /* Address of this block. */ - long this_size; /* Size of this block (does not include - this trailer). */ - long unknown2; - long unknown3; - long link; /* Address of trailer block of previous - segment. */ - long unknown5; - long unknown6; - long unknown7; - long unknown8; - long unknown9; - long unknown10; - long unknown11; - long unknown12; - long unknown13; - long unknown14; - }; - -# endif /* CRAY2 */ -# endif /* not CRAY_STACK */ - -# ifdef CRAY2 -/* Determine a "stack measure" for an arbitrary ADDRESS. - I doubt that "lint" will like this much. */ - -static long -i00afunc (long *address) -{ - struct stk_stat status; - struct stk_trailer *trailer; - long *block, size; - long result = 0; - - /* We want to iterate through all of the segments. The first - step is to get the stack status structure. We could do this - more quickly and more directly, perhaps, by referencing the - $LM00 common block, but I know that this works. */ - - STKSTAT (&status); - - /* Set up the iteration. */ - - trailer = (struct stk_trailer *) (status.current_address - + status.current_size - - 15); - - /* There must be at least one stack segment. Therefore it is - a fatal error if "trailer" is null. */ - - if (trailer == 0) - abort (); - - /* Discard segments that do not contain our argument address. */ - - while (trailer != 0) - { - block = (long *) trailer->this_address; - size = trailer->this_size; - if (block == 0 || size == 0) - abort (); - trailer = (struct stk_trailer *) trailer->link; - if ((block <= address) && (address < (block + size))) - break; - } - - /* Set the result to the offset in this segment and add the sizes - of all predecessor segments. */ - - result = address - block; - - if (trailer == 0) - { - return result; - } - - do - { - if (trailer->this_size <= 0) - abort (); - result += trailer->this_size; - trailer = (struct stk_trailer *) trailer->link; - } - while (trailer != 0); - - /* We are done. Note that if you present a bogus address (one - not in any segment), you will get a different number back, formed - from subtracting the address of the first block. This is probably - not what you want. */ - - return (result); -} - -# else /* not CRAY2 */ -/* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP. - Determine the number of the cell within the stack, - given the address of the cell. The purpose of this - routine is to linearize, in some sense, stack addresses - for alloca. */ - -static long -i00afunc (long address) -{ - long stkl = 0; - - long size, pseg, this_segment, stack; - long result = 0; - - struct stack_segment_linkage *ssptr; - - /* Register B67 contains the address of the end of the - current stack segment. If you (as a subprogram) store - your registers on the stack and find that you are past - the contents of B67, you have overflowed the segment. - - B67 also points to the stack segment linkage control - area, which is what we are really interested in. */ - - stkl = CRAY_STACKSEG_END (); - ssptr = (struct stack_segment_linkage *) stkl; - - /* If one subtracts 'size' from the end of the segment, - one has the address of the first word of the segment. - - If this is not the first segment, 'pseg' will be - nonzero. */ - - pseg = ssptr->sspseg; - size = ssptr->sssize; - - this_segment = stkl - size; - - /* It is possible that calling this routine itself caused - a stack overflow. Discard stack segments which do not - contain the target address. */ - - while (!(this_segment <= address && address <= stkl)) - { -# ifdef DEBUG_I00AFUNC - fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl); -# endif - if (pseg == 0) - break; - stkl = stkl - pseg; - ssptr = (struct stack_segment_linkage *) stkl; - size = ssptr->sssize; - pseg = ssptr->sspseg; - this_segment = stkl - size; - } - - result = address - this_segment; - - /* If you subtract pseg from the current end of the stack, - you get the address of the previous stack segment's end. - This seems a little convoluted to me, but I'll bet you save - a cycle somewhere. */ - - while (pseg != 0) - { -# ifdef DEBUG_I00AFUNC - fprintf (stderr, "%011o %011o\n", pseg, size); -# endif - stkl = stkl - pseg; - ssptr = (struct stack_segment_linkage *) stkl; - size = ssptr->sssize; - pseg = ssptr->sspseg; - result += size; - } - return (result); -} - -# endif /* not CRAY2 */ -# endif /* CRAY */ - -# endif /* no alloca */ -#endif /* not GCC version 2 */ diff --git a/contrib/diff/lib/alloca_.h b/contrib/diff/lib/alloca_.h deleted file mode 100644 index 8ed34fd..0000000 --- a/contrib/diff/lib/alloca_.h +++ /dev/null @@ -1,68 +0,0 @@ -/* Memory allocation on the stack. - Copyright (C) 1995, 1999, 2001-2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public - License along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, - USA. */ - -/* When this file is included, it may be preceded only by preprocessor - declarations. Thanks to AIX. Therefore we include it right after - "config.h", not later. */ - -#ifndef _ALLOCA_H -# define _ALLOCA_H - -/* alloca(N) returns a pointer (void* or char*) to N bytes of memory - allocated on the stack, and which will last until the function returns. - Use of alloca should be avoided: - - inside arguments of function calls - undefined behaviour, - - in inline functions - the allocation may actually last until the - calling function returns, - - for huge N (say, N >= 65536) - you never know how large (or small) - the stack is, and when the stack cannot fulfill the memory allocation - request, the program just crashes. - */ - -# ifdef __GNUC__ -# ifndef alloca -# define alloca __builtin_alloca -# endif -# else -# ifdef _MSC_VER -# include <malloc.h> -# define alloca _alloca -# else -# if HAVE_ALLOCA_H -# include <alloca.h> -# else -# ifdef _AIX - # pragma alloca -# else -# ifdef __hpux /* This section must match that of bison generated files. */ -# ifdef __cplusplus -extern "C" void *alloca (unsigned int); -# else /* not __cplusplus */ -extern void *alloca (); -# endif /* not __cplusplus */ -# else /* not __hpux */ -# ifndef alloca -extern char *alloca (); -# endif -# endif /* __hpux */ -# endif -# endif -# endif -# endif - -#endif /* _ALLOCA_H */ diff --git a/contrib/diff/lib/dirname.c b/contrib/diff/lib/dirname.c deleted file mode 100644 index 815192a..0000000 --- a/contrib/diff/lib/dirname.c +++ /dev/null @@ -1,119 +0,0 @@ -/* dirname.c -- return all but the last element in a path - Copyright (C) 1990, 1998, 2000, 2001, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#include "dirname.h" - -#include <string.h> -#include "xalloc.h" - -/* Return the length of `dirname (PATH)', or zero if PATH is - in the working directory. Works properly even if - there are trailing slashes (by effectively ignoring them). */ -size_t -dir_len (char const *path) -{ - size_t prefix_length = FILESYSTEM_PREFIX_LEN (path); - size_t length; - - /* Strip the basename and any redundant slashes before it. */ - for (length = base_name (path) - path; prefix_length < length; length--) - if (! ISSLASH (path[length - 1])) - return length; - - /* But don't strip the only slash from "/". */ - return prefix_length + ISSLASH (path[prefix_length]); -} - -/* Return the leading directories part of PATH, - allocated with xmalloc. - Works properly even if there are trailing slashes - (by effectively ignoring them). */ - -char * -dir_name (char const *path) -{ - size_t length = dir_len (path); - int append_dot = (length == FILESYSTEM_PREFIX_LEN (path)); - char *newpath = xmalloc (length + append_dot + 1); - memcpy (newpath, path, length); - if (append_dot) - newpath[length++] = '.'; - newpath[length] = 0; - return newpath; -} - -#ifdef TEST_DIRNAME -/* - -Run the test like this (expect no output): - gcc -DHAVE_CONFIG_H -DTEST_DIRNAME -I.. -O -Wall \ - basename.c dirname.c xmalloc.c error.c - sed -n '/^BEGIN-DATA$/,/^END-DATA$/p' dirname.c|grep -v DATA|./a.out - -If it's been built on a DOS or Windows platforms, run another test like -this (again, expect no output): - sed -n '/^BEGIN-DOS-DATA$/,/^END-DOS-DATA$/p' dirname.c|grep -v DATA|./a.out - -BEGIN-DATA -foo//// . -bar/foo//// bar -foo/ . -/ / -. . -a . -END-DATA - -BEGIN-DOS-DATA -c:///// c:/ -c:/ c:/ -c:/. c:/ -c:foo c:. -c:foo/bar c:foo -END-DOS-DATA - -*/ - -# define MAX_BUFF_LEN 1024 -# include <stdio.h> - -char *program_name; - -int -main (int argc, char *argv[]) -{ - char buff[MAX_BUFF_LEN + 1]; - - program_name = argv[0]; - - buff[MAX_BUFF_LEN] = 0; - while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0]) - { - char path[MAX_BUFF_LEN]; - char expected_result[MAX_BUFF_LEN]; - char const *result; - sscanf (buff, "%s %s", path, expected_result); - result = dir_name (path); - if (strcmp (result, expected_result)) - printf ("%s: got %s, expected %s\n", path, result, expected_result); - } - return 0; -} -#endif diff --git a/contrib/diff/lib/fnmatch.c b/contrib/diff/lib/fnmatch.c deleted file mode 100644 index d0cd8cd..0000000 --- a/contrib/diff/lib/fnmatch.c +++ /dev/null @@ -1,403 +0,0 @@ -/* Copyright (C) 1991,1992,1993,1996,1997,1998,1999,2000,2001,2002,2003,2004 - Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -/* Enable GNU extensions in fnmatch.h. */ -#ifndef _GNU_SOURCE -# define _GNU_SOURCE 1 -#endif - -#ifdef __GNUC__ -# define alloca __builtin_alloca -# define HAVE_ALLOCA 1 -#else -# if defined HAVE_ALLOCA_H || defined _LIBC -# include <alloca.h> -# else -# ifdef _AIX - # pragma alloca -# else -# ifndef alloca -char *alloca (); -# endif -# endif -# endif -#endif - -#if ! defined __builtin_expect && __GNUC__ < 3 -# define __builtin_expect(expr, expected) (expr) -#endif - -#include <fnmatch.h> - -#include <assert.h> -#include <ctype.h> -#include <errno.h> -#include <stddef.h> -#include <stdlib.h> -#include <string.h> - -#define WIDE_CHAR_SUPPORT (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC) - -/* For platform which support the ISO C amendement 1 functionality we - support user defined character classes. */ -#if defined _LIBC || WIDE_CHAR_SUPPORT -/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */ -# include <wchar.h> -# include <wctype.h> -#endif - -/* We need some of the locale data (the collation sequence information) - but there is no interface to get this information in general. Therefore - we support a correct implementation only in glibc. */ -#ifdef _LIBC -# include "../locale/localeinfo.h" -# include "../locale/elem-hash.h" -# include "../locale/coll-lookup.h" -# include <shlib-compat.h> - -# define CONCAT(a,b) __CONCAT(a,b) -# define mbsrtowcs __mbsrtowcs -# define fnmatch __fnmatch -extern int fnmatch (const char *pattern, const char *string, int flags); -#endif - -#ifndef SIZE_MAX -# define SIZE_MAX ((size_t) -1) -#endif - -/* We often have to test for FNM_FILE_NAME and FNM_PERIOD being both set. */ -#define NO_LEADING_PERIOD(flags) \ - ((flags & (FNM_FILE_NAME | FNM_PERIOD)) == (FNM_FILE_NAME | FNM_PERIOD)) - -/* Comment out all this code if we are using the GNU C Library, and are not - actually compiling the library itself, and have not detected a bug - in the library. This code is part of the GNU C - Library, but also included in many other GNU distributions. Compiling - and linking in this code is a waste when using the GNU C library - (especially if it is a shared library). Rather than having every GNU - program understand `configure --with-gnu-libc' and omit the object files, - it is simpler to just do this in the source for each such file. */ - -#if defined _LIBC || !defined __GNU_LIBRARY__ || !HAVE_FNMATCH_GNU - - -# if defined STDC_HEADERS || !defined isascii -# define ISASCII(c) 1 -# else -# define ISASCII(c) isascii(c) -# endif - -# ifdef isblank -# define ISBLANK(c) (ISASCII (c) && isblank (c)) -# else -# define ISBLANK(c) ((c) == ' ' || (c) == '\t') -# endif -# ifdef isgraph -# define ISGRAPH(c) (ISASCII (c) && isgraph (c)) -# else -# define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c)) -# endif - -# define ISPRINT(c) (ISASCII (c) && isprint (c)) -# define ISDIGIT(c) (ISASCII (c) && isdigit (c)) -# define ISALNUM(c) (ISASCII (c) && isalnum (c)) -# define ISALPHA(c) (ISASCII (c) && isalpha (c)) -# define ISCNTRL(c) (ISASCII (c) && iscntrl (c)) -# define ISLOWER(c) (ISASCII (c) && islower (c)) -# define ISPUNCT(c) (ISASCII (c) && ispunct (c)) -# define ISSPACE(c) (ISASCII (c) && isspace (c)) -# define ISUPPER(c) (ISASCII (c) && isupper (c)) -# define ISXDIGIT(c) (ISASCII (c) && isxdigit (c)) - -# define STREQ(s1, s2) ((strcmp (s1, s2) == 0)) - -# if defined _LIBC || WIDE_CHAR_SUPPORT -/* The GNU C library provides support for user-defined character classes - and the functions from ISO C amendement 1. */ -# ifdef CHARCLASS_NAME_MAX -# define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX -# else -/* This shouldn't happen but some implementation might still have this - problem. Use a reasonable default value. */ -# define CHAR_CLASS_MAX_LENGTH 256 -# endif - -# ifdef _LIBC -# define IS_CHAR_CLASS(string) __wctype (string) -# else -# define IS_CHAR_CLASS(string) wctype (string) -# endif - -# ifdef _LIBC -# define ISWCTYPE(WC, WT) __iswctype (WC, WT) -# else -# define ISWCTYPE(WC, WT) iswctype (WC, WT) -# endif - -# if (HAVE_MBSTATE_T && HAVE_MBSRTOWCS) || _LIBC -/* In this case we are implementing the multibyte character handling. */ -# define HANDLE_MULTIBYTE 1 -# endif - -# else -# define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */ - -# define IS_CHAR_CLASS(string) \ - (STREQ (string, "alpha") || STREQ (string, "upper") \ - || STREQ (string, "lower") || STREQ (string, "digit") \ - || STREQ (string, "alnum") || STREQ (string, "xdigit") \ - || STREQ (string, "space") || STREQ (string, "print") \ - || STREQ (string, "punct") || STREQ (string, "graph") \ - || STREQ (string, "cntrl") || STREQ (string, "blank")) -# endif - -/* Avoid depending on library functions or files - whose names are inconsistent. */ - -# ifndef errno -extern int errno; -# endif - -/* Global variable. */ -static int posixly_correct; - -# ifndef internal_function -/* Inside GNU libc we mark some function in a special way. In other - environments simply ignore the marking. */ -# define internal_function -# endif - -/* Note that this evaluates C many times. */ -# ifdef _LIBC -# define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c)) -# else -# define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c)) -# endif -# define CHAR char -# define UCHAR unsigned char -# define INT int -# define FCT internal_fnmatch -# define EXT ext_match -# define END end_pattern -# define L(CS) CS -# ifdef _LIBC -# define BTOWC(C) __btowc (C) -# else -# define BTOWC(C) btowc (C) -# endif -# define STRLEN(S) strlen (S) -# define STRCAT(D, S) strcat (D, S) -# ifdef _LIBC -# define MEMPCPY(D, S, N) __mempcpy (D, S, N) -# else -# if HAVE_MEMPCPY -# define MEMPCPY(D, S, N) mempcpy (D, S, N) -# else -# define MEMPCPY(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N))) -# endif -# endif -# define MEMCHR(S, C, N) memchr (S, C, N) -# define STRCOLL(S1, S2) strcoll (S1, S2) -# include "fnmatch_loop.c" - - -# if HANDLE_MULTIBYTE -# define FOLD(c) ((flags & FNM_CASEFOLD) ? towlower (c) : (c)) -# define CHAR wchar_t -# define UCHAR wint_t -# define INT wint_t -# define FCT internal_fnwmatch -# define EXT ext_wmatch -# define END end_wpattern -# define L(CS) L##CS -# define BTOWC(C) (C) -# ifdef _LIBC -# define STRLEN(S) __wcslen (S) -# define STRCAT(D, S) __wcscat (D, S) -# define MEMPCPY(D, S, N) __wmempcpy (D, S, N) -# else -# define STRLEN(S) wcslen (S) -# define STRCAT(D, S) wcscat (D, S) -# if HAVE_WMEMPCPY -# define MEMPCPY(D, S, N) wmempcpy (D, S, N) -# else -# define MEMPCPY(D, S, N) (wmemcpy (D, S, N) + (N)) -# endif -# endif -# define MEMCHR(S, C, N) wmemchr (S, C, N) -# define STRCOLL(S1, S2) wcscoll (S1, S2) -# define WIDE_CHAR_VERSION 1 - -# undef IS_CHAR_CLASS -/* We have to convert the wide character string in a multibyte string. But - we know that the character class names consist of alphanumeric characters - from the portable character set, and since the wide character encoding - for a member of the portable character set is the same code point as - its single-byte encoding, we can use a simplified method to convert the - string to a multibyte character string. */ -static wctype_t -is_char_class (const wchar_t *wcs) -{ - char s[CHAR_CLASS_MAX_LENGTH + 1]; - char *cp = s; - - do - { - /* Test for a printable character from the portable character set. */ -# ifdef _LIBC - if (*wcs < 0x20 || *wcs > 0x7e - || *wcs == 0x24 || *wcs == 0x40 || *wcs == 0x60) - return (wctype_t) 0; -# else - switch (*wcs) - { - case L' ': case L'!': case L'"': case L'#': case L'%': - case L'&': case L'\'': case L'(': case L')': case L'*': - case L'+': case L',': case L'-': case L'.': case L'/': - case L'0': case L'1': case L'2': case L'3': case L'4': - case L'5': case L'6': case L'7': case L'8': case L'9': - case L':': case L';': case L'<': case L'=': case L'>': - case L'?': - case L'A': case L'B': case L'C': case L'D': case L'E': - case L'F': case L'G': case L'H': case L'I': case L'J': - case L'K': case L'L': case L'M': case L'N': case L'O': - case L'P': case L'Q': case L'R': case L'S': case L'T': - case L'U': case L'V': case L'W': case L'X': case L'Y': - case L'Z': - case L'[': case L'\\': case L']': case L'^': case L'_': - case L'a': case L'b': case L'c': case L'd': case L'e': - case L'f': case L'g': case L'h': case L'i': case L'j': - case L'k': case L'l': case L'm': case L'n': case L'o': - case L'p': case L'q': case L'r': case L's': case L't': - case L'u': case L'v': case L'w': case L'x': case L'y': - case L'z': case L'{': case L'|': case L'}': case L'~': - break; - default: - return (wctype_t) 0; - } -# endif - - /* Avoid overrunning the buffer. */ - if (cp == s + CHAR_CLASS_MAX_LENGTH) - return (wctype_t) 0; - - *cp++ = (char) *wcs++; - } - while (*wcs != L'\0'); - - *cp = '\0'; - -# ifdef _LIBC - return __wctype (s); -# else - return wctype (s); -# endif -} -# define IS_CHAR_CLASS(string) is_char_class (string) - -# include "fnmatch_loop.c" -# endif - - -int -fnmatch (const char *pattern, const char *string, int flags) -{ -# if HANDLE_MULTIBYTE -# define ALLOCA_LIMIT 2000 - if (__builtin_expect (MB_CUR_MAX, 1) != 1) - { - mbstate_t ps; - size_t patsize; - size_t strsize; - size_t totsize; - wchar_t *wpattern; - wchar_t *wstring; - int res; - - /* Calculate the size needed to convert the strings to - wide characters. */ - memset (&ps, '\0', sizeof (ps)); - patsize = mbsrtowcs (NULL, &pattern, 0, &ps) + 1; - if (__builtin_expect (patsize == 0, 0)) - /* Something wrong. - XXX Do we have to set `errno' to something which mbsrtows hasn't - already done? */ - return -1; - assert (mbsinit (&ps)); - strsize = mbsrtowcs (NULL, &string, 0, &ps) + 1; - if (__builtin_expect (strsize == 0, 0)) - /* Something wrong. - XXX Do we have to set `errno' to something which mbsrtows hasn't - already done? */ - return -1; - assert (mbsinit (&ps)); - totsize = patsize + strsize; - if (__builtin_expect (! (patsize <= totsize - && totsize <= SIZE_MAX / sizeof (wchar_t)), - 0)) - { - errno = ENOMEM; - return -1; - } - - /* Allocate room for the wide characters. */ - if (__builtin_expect (totsize < ALLOCA_LIMIT, 1)) - wpattern = (wchar_t *) alloca (totsize * sizeof (wchar_t)); - else - { - wpattern = malloc (totsize * sizeof (wchar_t)); - if (__builtin_expect (! wpattern, 0)) - { - errno = ENOMEM; - return -1; - } - } - wstring = wpattern + patsize; - - /* Convert the strings into wide characters. */ - mbsrtowcs (wpattern, &pattern, patsize, &ps); - assert (mbsinit (&ps)); - mbsrtowcs (wstring, &string, strsize, &ps); - - res = internal_fnwmatch (wpattern, wstring, wstring + strsize - 1, - flags & FNM_PERIOD, flags); - - if (__builtin_expect (! (totsize < ALLOCA_LIMIT), 0)) - free (wpattern); - return res; - } -# endif /* HANDLE_MULTIBYTE */ - - return internal_fnmatch (pattern, string, string + strlen (string), - flags & FNM_PERIOD, flags); -} - -# ifdef _LIBC -# undef fnmatch -versioned_symbol (libc, __fnmatch, fnmatch, GLIBC_2_2_3); -# if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_3) -strong_alias (__fnmatch, __fnmatch_old) -compat_symbol (libc, __fnmatch_old, fnmatch, GLIBC_2_0); -# endif -libc_hidden_ver (__fnmatch, fnmatch) -# endif - -#endif /* _LIBC or not __GNU_LIBRARY__. */ diff --git a/contrib/diff/lib/fnmatch_.h b/contrib/diff/lib/fnmatch_.h deleted file mode 100644 index 87e661f..0000000 --- a/contrib/diff/lib/fnmatch_.h +++ /dev/null @@ -1,63 +0,0 @@ -/* Copyright (C) 1991, 1992, 1993, 1996, 1997, 1998, 1999, 2001, 2002, 2003 - Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _FNMATCH_H -# define _FNMATCH_H 1 - -# ifdef __cplusplus -extern "C" { -# endif - -/* We #undef these before defining them because some losing systems - (HP-UX A.08.07 for example) define these in <unistd.h>. */ -# undef FNM_PATHNAME -# undef FNM_NOESCAPE -# undef FNM_PERIOD - -/* Bits set in the FLAGS argument to `fnmatch'. */ -# define FNM_PATHNAME (1 << 0) /* No wildcard can ever match `/'. */ -# define FNM_NOESCAPE (1 << 1) /* Backslashes don't quote special chars. */ -# define FNM_PERIOD (1 << 2) /* Leading `.' is matched only explicitly. */ - -# if !defined _POSIX_C_SOURCE || _POSIX_C_SOURCE < 2 || defined _GNU_SOURCE -# define FNM_FILE_NAME FNM_PATHNAME /* Preferred GNU name. */ -# define FNM_LEADING_DIR (1 << 3) /* Ignore `/...' after a match. */ -# define FNM_CASEFOLD (1 << 4) /* Compare without regard to case. */ -# define FNM_EXTMATCH (1 << 5) /* Use ksh-like extended matching. */ -# endif - -/* Value returned by `fnmatch' if STRING does not match PATTERN. */ -# define FNM_NOMATCH 1 - -/* This value is returned if the implementation does not support - `fnmatch'. Since this is not the case here it will never be - returned but the conformance test suites still require the symbol - to be defined. */ -# ifdef _XOPEN_SOURCE -# define FNM_NOSYS (-1) -# endif - -/* Match NAME against the filename pattern PATTERN, - returning zero if it matches, FNM_NOMATCH if not. */ -extern int fnmatch (const char *__pattern, const char *__name, - int __flags); - -# ifdef __cplusplus -} -# endif - -#endif /* fnmatch.h */ diff --git a/contrib/diff/lib/fnmatch_loop.c b/contrib/diff/lib/fnmatch_loop.c deleted file mode 100644 index 7798b59..0000000 --- a/contrib/diff/lib/fnmatch_loop.c +++ /dev/null @@ -1,1192 +0,0 @@ -/* Copyright (C) 1991,1992,1993,1996,1997,1998,1999,2000,2001,2002,2003,2004 - Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Match STRING against the filename pattern PATTERN, returning zero if - it matches, nonzero if not. */ -static int EXT (INT opt, const CHAR *pattern, const CHAR *string, - const CHAR *string_end, int no_leading_period, int flags) - internal_function; -static const CHAR *END (const CHAR *patternp) internal_function; - -static int -internal_function -FCT (const CHAR *pattern, const CHAR *string, const CHAR *string_end, - int no_leading_period, int flags) -{ - register const CHAR *p = pattern, *n = string; - register UCHAR c; -#ifdef _LIBC -# if WIDE_CHAR_VERSION - const char *collseq = (const char *) - _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQWC); -# else - const UCHAR *collseq = (const UCHAR *) - _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQMB); -# endif -#endif - - while ((c = *p++) != L('\0')) - { - int new_no_leading_period = 0; - c = FOLD (c); - - switch (c) - { - case L('?'): - if (__builtin_expect (flags & FNM_EXTMATCH, 0) && *p == '(') - { - int res; - - res = EXT (c, p, n, string_end, no_leading_period, - flags); - if (res != -1) - return res; - } - - if (n == string_end) - return FNM_NOMATCH; - else if (*n == L('/') && (flags & FNM_FILE_NAME)) - return FNM_NOMATCH; - else if (*n == L('.') && no_leading_period) - return FNM_NOMATCH; - break; - - case L('\\'): - if (!(flags & FNM_NOESCAPE)) - { - c = *p++; - if (c == L('\0')) - /* Trailing \ loses. */ - return FNM_NOMATCH; - c = FOLD (c); - } - if (n == string_end || FOLD ((UCHAR) *n) != c) - return FNM_NOMATCH; - break; - - case L('*'): - if (__builtin_expect (flags & FNM_EXTMATCH, 0) && *p == '(') - { - int res; - - res = EXT (c, p, n, string_end, no_leading_period, - flags); - if (res != -1) - return res; - } - - if (n != string_end && *n == L('.') && no_leading_period) - return FNM_NOMATCH; - - for (c = *p++; c == L('?') || c == L('*'); c = *p++) - { - if (*p == L('(') && (flags & FNM_EXTMATCH) != 0) - { - const CHAR *endp = END (p); - if (endp != p) - { - /* This is a pattern. Skip over it. */ - p = endp; - continue; - } - } - - if (c == L('?')) - { - /* A ? needs to match one character. */ - if (n == string_end) - /* There isn't another character; no match. */ - return FNM_NOMATCH; - else if (*n == L('/') - && __builtin_expect (flags & FNM_FILE_NAME, 0)) - /* A slash does not match a wildcard under - FNM_FILE_NAME. */ - return FNM_NOMATCH; - else - /* One character of the string is consumed in matching - this ? wildcard, so *??? won't match if there are - less than three characters. */ - ++n; - } - } - - if (c == L('\0')) - /* The wildcard(s) is/are the last element of the pattern. - If the name is a file name and contains another slash - this means it cannot match, unless the FNM_LEADING_DIR - flag is set. */ - { - int result = (flags & FNM_FILE_NAME) == 0 ? 0 : FNM_NOMATCH; - - if (flags & FNM_FILE_NAME) - { - if (flags & FNM_LEADING_DIR) - result = 0; - else - { - if (MEMCHR (n, L('/'), string_end - n) == NULL) - result = 0; - } - } - - return result; - } - else - { - const CHAR *endp; - - endp = MEMCHR (n, (flags & FNM_FILE_NAME) ? L('/') : L('\0'), - string_end - n); - if (endp == NULL) - endp = string_end; - - if (c == L('[') - || (__builtin_expect (flags & FNM_EXTMATCH, 0) != 0 - && (c == L('@') || c == L('+') || c == L('!')) - && *p == L('('))) - { - int flags2 = ((flags & FNM_FILE_NAME) - ? flags : (flags & ~FNM_PERIOD)); - int no_leading_period2 = no_leading_period; - - for (--p; n < endp; ++n, no_leading_period2 = 0) - if (FCT (p, n, string_end, no_leading_period2, flags2) - == 0) - return 0; - } - else if (c == L('/') && (flags & FNM_FILE_NAME)) - { - while (n < string_end && *n != L('/')) - ++n; - if (n < string_end && *n == L('/') - && (FCT (p, n + 1, string_end, flags & FNM_PERIOD, flags) - == 0)) - return 0; - } - else - { - int flags2 = ((flags & FNM_FILE_NAME) - ? flags : (flags & ~FNM_PERIOD)); - int no_leading_period2 = no_leading_period; - - if (c == L('\\') && !(flags & FNM_NOESCAPE)) - c = *p; - c = FOLD (c); - for (--p; n < endp; ++n, no_leading_period2 = 0) - if (FOLD ((UCHAR) *n) == c - && (FCT (p, n, string_end, no_leading_period2, flags2) - == 0)) - return 0; - } - } - - /* If we come here no match is possible with the wildcard. */ - return FNM_NOMATCH; - - case L('['): - { - /* Nonzero if the sense of the character class is inverted. */ - register int not; - CHAR cold; - UCHAR fn; - - if (posixly_correct == 0) - posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1; - - if (n == string_end) - return FNM_NOMATCH; - - if (*n == L('.') && no_leading_period) - return FNM_NOMATCH; - - if (*n == L('/') && (flags & FNM_FILE_NAME)) - /* `/' cannot be matched. */ - return FNM_NOMATCH; - - not = (*p == L('!') || (posixly_correct < 0 && *p == L('^'))); - if (not) - ++p; - - fn = FOLD ((UCHAR) *n); - - c = *p++; - for (;;) - { - if (!(flags & FNM_NOESCAPE) && c == L('\\')) - { - if (*p == L('\0')) - return FNM_NOMATCH; - c = FOLD ((UCHAR) *p); - ++p; - - if (c == fn) - goto matched; - } - else if (c == L('[') && *p == L(':')) - { - /* Leave room for the null. */ - CHAR str[CHAR_CLASS_MAX_LENGTH + 1]; - size_t c1 = 0; -#if defined _LIBC || WIDE_CHAR_SUPPORT - wctype_t wt; -#endif - const CHAR *startp = p; - - for (;;) - { - if (c1 == CHAR_CLASS_MAX_LENGTH) - /* The name is too long and therefore the pattern - is ill-formed. */ - return FNM_NOMATCH; - - c = *++p; - if (c == L(':') && p[1] == L(']')) - { - p += 2; - break; - } - if (c < L('a') || c >= L('z')) - { - /* This cannot possibly be a character class name. - Match it as a normal range. */ - p = startp; - c = L('['); - goto normal_bracket; - } - str[c1++] = c; - } - str[c1] = L('\0'); - -#if defined _LIBC || WIDE_CHAR_SUPPORT - wt = IS_CHAR_CLASS (str); - if (wt == 0) - /* Invalid character class name. */ - return FNM_NOMATCH; - -# if defined _LIBC && ! WIDE_CHAR_VERSION - /* The following code is glibc specific but does - there a good job in speeding up the code since - we can avoid the btowc() call. */ - if (_ISCTYPE ((UCHAR) *n, wt)) - goto matched; -# else - if (ISWCTYPE (BTOWC ((UCHAR) *n), wt)) - goto matched; -# endif -#else - if ((STREQ (str, L("alnum")) && ISALNUM ((UCHAR) *n)) - || (STREQ (str, L("alpha")) && ISALPHA ((UCHAR) *n)) - || (STREQ (str, L("blank")) && ISBLANK ((UCHAR) *n)) - || (STREQ (str, L("cntrl")) && ISCNTRL ((UCHAR) *n)) - || (STREQ (str, L("digit")) && ISDIGIT ((UCHAR) *n)) - || (STREQ (str, L("graph")) && ISGRAPH ((UCHAR) *n)) - || (STREQ (str, L("lower")) && ISLOWER ((UCHAR) *n)) - || (STREQ (str, L("print")) && ISPRINT ((UCHAR) *n)) - || (STREQ (str, L("punct")) && ISPUNCT ((UCHAR) *n)) - || (STREQ (str, L("space")) && ISSPACE ((UCHAR) *n)) - || (STREQ (str, L("upper")) && ISUPPER ((UCHAR) *n)) - || (STREQ (str, L("xdigit")) && ISXDIGIT ((UCHAR) *n))) - goto matched; -#endif - c = *p++; - } -#ifdef _LIBC - else if (c == L('[') && *p == L('=')) - { - UCHAR str[1]; - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); - const CHAR *startp = p; - - c = *++p; - if (c == L('\0')) - { - p = startp; - c = L('['); - goto normal_bracket; - } - str[0] = c; - - c = *++p; - if (c != L('=') || p[1] != L(']')) - { - p = startp; - c = L('['); - goto normal_bracket; - } - p += 2; - - if (nrules == 0) - { - if ((UCHAR) *n == str[0]) - goto matched; - } - else - { - const int32_t *table; -# if WIDE_CHAR_VERSION - const int32_t *weights; - const int32_t *extra; -# else - const unsigned char *weights; - const unsigned char *extra; -# endif - const int32_t *indirect; - int32_t idx; - const UCHAR *cp = (const UCHAR *) str; - - /* This #include defines a local function! */ -# if WIDE_CHAR_VERSION -# include <locale/weightwc.h> -# else -# include <locale/weight.h> -# endif - -# if WIDE_CHAR_VERSION - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEWC); - weights = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTWC); - extra = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAWC); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTWC); -# else - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB); - weights = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTMB); -# endif - - idx = findidx (&cp); - if (idx != 0) - { - /* We found a table entry. Now see whether the - character we are currently at has the same - equivalance class value. */ - int len = weights[idx]; - int32_t idx2; - const UCHAR *np = (const UCHAR *) n; - - idx2 = findidx (&np); - if (idx2 != 0 && len == weights[idx2]) - { - int cnt = 0; - - while (cnt < len - && (weights[idx + 1 + cnt] - == weights[idx2 + 1 + cnt])) - ++cnt; - - if (cnt == len) - goto matched; - } - } - } - - c = *p++; - } -#endif - else if (c == L('\0')) - /* [ (unterminated) loses. */ - return FNM_NOMATCH; - else - { - int is_range = 0; - -#ifdef _LIBC - int is_seqval = 0; - - if (c == L('[') && *p == L('.')) - { - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); - const CHAR *startp = p; - size_t c1 = 0; - - while (1) - { - c = *++p; - if (c == L('.') && p[1] == L(']')) - { - p += 2; - break; - } - if (c == '\0') - return FNM_NOMATCH; - ++c1; - } - - /* We have to handling the symbols differently in - ranges since then the collation sequence is - important. */ - is_range = *p == L('-') && p[1] != L('\0'); - - if (nrules == 0) - { - /* There are no names defined in the collation - data. Therefore we only accept the trivial - names consisting of the character itself. */ - if (c1 != 1) - return FNM_NOMATCH; - - if (!is_range && *n == startp[1]) - goto matched; - - cold = startp[1]; - c = *p++; - } - else - { - int32_t table_size; - const int32_t *symb_table; -# ifdef WIDE_CHAR_VERSION - char str[c1]; - unsigned int strcnt; -# else -# define str (startp + 1) -# endif - const unsigned char *extra; - int32_t idx; - int32_t elem; - int32_t second; - int32_t hash; - -# ifdef WIDE_CHAR_VERSION - /* We have to convert the name to a single-byte - string. This is possible since the names - consist of ASCII characters and the internal - representation is UCS4. */ - for (strcnt = 0; strcnt < c1; ++strcnt) - str[strcnt] = startp[1 + strcnt]; -# endif - - table_size = - _NL_CURRENT_WORD (LC_COLLATE, - _NL_COLLATE_SYMB_HASH_SIZEMB); - symb_table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_TABLEMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_EXTRAMB); - - /* Locate the character in the hashing table. */ - hash = elem_hash (str, c1); - - idx = 0; - elem = hash % table_size; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* First compare the hashing value. */ - if (symb_table[2 * elem] == hash - && c1 == extra[symb_table[2 * elem + 1]] - && memcmp (str, - &extra[symb_table[2 * elem + 1] - + 1], c1) == 0) - { - /* Yep, this is the entry. */ - idx = symb_table[2 * elem + 1]; - idx += 1 + extra[idx]; - break; - } - - /* Next entry. */ - elem += second; - } - - if (symb_table[2 * elem] != 0) - { - /* Compare the byte sequence but only if - this is not part of a range. */ -# ifdef WIDE_CHAR_VERSION - int32_t *wextra; - - idx += 1 + extra[idx]; - /* Adjust for the alignment. */ - idx = (idx + 3) & ~3; - - wextra = (int32_t *) &extra[idx + 4]; -# endif - - if (! is_range) - { -# ifdef WIDE_CHAR_VERSION - for (c1 = 0; - (int32_t) c1 < wextra[idx]; - ++c1) - if (n[c1] != wextra[1 + c1]) - break; - - if ((int32_t) c1 == wextra[idx]) - goto matched; -# else - for (c1 = 0; c1 < extra[idx]; ++c1) - if (n[c1] != extra[1 + c1]) - break; - - if (c1 == extra[idx]) - goto matched; -# endif - } - - /* Get the collation sequence value. */ - is_seqval = 1; -# ifdef WIDE_CHAR_VERSION - cold = wextra[1 + wextra[idx]]; -# else - /* Adjust for the alignment. */ - idx += 1 + extra[idx]; - idx = (idx + 3) & ~4; - cold = *((int32_t *) &extra[idx]); -# endif - - c = *p++; - } - else if (c1 == 1) - { - /* No valid character. Match it as a - single byte. */ - if (!is_range && *n == str[0]) - goto matched; - - cold = str[0]; - c = *p++; - } - else - return FNM_NOMATCH; - } - } - else -# undef str -#endif - { - c = FOLD (c); - normal_bracket: - - /* We have to handling the symbols differently in - ranges since then the collation sequence is - important. */ - is_range = (*p == L('-') && p[1] != L('\0') - && p[1] != L(']')); - - if (!is_range && c == fn) - goto matched; - - cold = c; - c = *p++; - } - - if (c == L('-') && *p != L(']')) - { -#if _LIBC - /* We have to find the collation sequence - value for C. Collation sequence is nothing - we can regularly access. The sequence - value is defined by the order in which the - definitions of the collation values for the - various characters appear in the source - file. A strange concept, nowhere - documented. */ - uint32_t fcollseq; - uint32_t lcollseq; - UCHAR cend = *p++; - -# ifdef WIDE_CHAR_VERSION - /* Search in the `names' array for the characters. */ - fcollseq = __collseq_table_lookup (collseq, fn); - if (fcollseq == ~((uint32_t) 0)) - /* XXX We don't know anything about the character - we are supposed to match. This means we are - failing. */ - goto range_not_matched; - - if (is_seqval) - lcollseq = cold; - else - lcollseq = __collseq_table_lookup (collseq, cold); -# else - fcollseq = collseq[fn]; - lcollseq = is_seqval ? cold : collseq[(UCHAR) cold]; -# endif - - is_seqval = 0; - if (cend == L('[') && *p == L('.')) - { - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, - _NL_COLLATE_NRULES); - const CHAR *startp = p; - size_t c1 = 0; - - while (1) - { - c = *++p; - if (c == L('.') && p[1] == L(']')) - { - p += 2; - break; - } - if (c == '\0') - return FNM_NOMATCH; - ++c1; - } - - if (nrules == 0) - { - /* There are no names defined in the - collation data. Therefore we only - accept the trivial names consisting - of the character itself. */ - if (c1 != 1) - return FNM_NOMATCH; - - cend = startp[1]; - } - else - { - int32_t table_size; - const int32_t *symb_table; -# ifdef WIDE_CHAR_VERSION - char str[c1]; - unsigned int strcnt; -# else -# define str (startp + 1) -# endif - const unsigned char *extra; - int32_t idx; - int32_t elem; - int32_t second; - int32_t hash; - -# ifdef WIDE_CHAR_VERSION - /* We have to convert the name to a single-byte - string. This is possible since the names - consist of ASCII characters and the internal - representation is UCS4. */ - for (strcnt = 0; strcnt < c1; ++strcnt) - str[strcnt] = startp[1 + strcnt]; -# endif - - table_size = - _NL_CURRENT_WORD (LC_COLLATE, - _NL_COLLATE_SYMB_HASH_SIZEMB); - symb_table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_TABLEMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_EXTRAMB); - - /* Locate the character in the hashing - table. */ - hash = elem_hash (str, c1); - - idx = 0; - elem = hash % table_size; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* First compare the hashing value. */ - if (symb_table[2 * elem] == hash - && (c1 - == extra[symb_table[2 * elem + 1]]) - && memcmp (str, - &extra[symb_table[2 * elem + 1] - + 1], c1) == 0) - { - /* Yep, this is the entry. */ - idx = symb_table[2 * elem + 1]; - idx += 1 + extra[idx]; - break; - } - - /* Next entry. */ - elem += second; - } - - if (symb_table[2 * elem] != 0) - { - /* Compare the byte sequence but only if - this is not part of a range. */ -# ifdef WIDE_CHAR_VERSION - int32_t *wextra; - - idx += 1 + extra[idx]; - /* Adjust for the alignment. */ - idx = (idx + 3) & ~4; - - wextra = (int32_t *) &extra[idx + 4]; -# endif - /* Get the collation sequence value. */ - is_seqval = 1; -# ifdef WIDE_CHAR_VERSION - cend = wextra[1 + wextra[idx]]; -# else - /* Adjust for the alignment. */ - idx += 1 + extra[idx]; - idx = (idx + 3) & ~4; - cend = *((int32_t *) &extra[idx]); -# endif - } - else if (symb_table[2 * elem] != 0 && c1 == 1) - { - cend = str[0]; - c = *p++; - } - else - return FNM_NOMATCH; - } -# undef str - } - else - { - if (!(flags & FNM_NOESCAPE) && cend == L('\\')) - cend = *p++; - if (cend == L('\0')) - return FNM_NOMATCH; - cend = FOLD (cend); - } - - /* XXX It is not entirely clear to me how to handle - characters which are not mentioned in the - collation specification. */ - if ( -# ifdef WIDE_CHAR_VERSION - lcollseq == 0xffffffff || -# endif - lcollseq <= fcollseq) - { - /* We have to look at the upper bound. */ - uint32_t hcollseq; - - if (is_seqval) - hcollseq = cend; - else - { -# ifdef WIDE_CHAR_VERSION - hcollseq = - __collseq_table_lookup (collseq, cend); - if (hcollseq == ~((uint32_t) 0)) - { - /* Hum, no information about the upper - bound. The matching succeeds if the - lower bound is matched exactly. */ - if (lcollseq != fcollseq) - goto range_not_matched; - - goto matched; - } -# else - hcollseq = collseq[cend]; -# endif - } - - if (lcollseq <= hcollseq && fcollseq <= hcollseq) - goto matched; - } -# ifdef WIDE_CHAR_VERSION - range_not_matched: -# endif -#else - /* We use a boring value comparison of the character - values. This is better than comparing using - `strcoll' since the latter would have surprising - and sometimes fatal consequences. */ - UCHAR cend = *p++; - - if (!(flags & FNM_NOESCAPE) && cend == L('\\')) - cend = *p++; - if (cend == L('\0')) - return FNM_NOMATCH; - - /* It is a range. */ - if (cold <= fn && fn <= cend) - goto matched; -#endif - - c = *p++; - } - } - - if (c == L(']')) - break; - } - - if (!not) - return FNM_NOMATCH; - break; - - matched: - /* Skip the rest of the [...] that already matched. */ - do - { - ignore_next: - c = *p++; - - if (c == L('\0')) - /* [... (unterminated) loses. */ - return FNM_NOMATCH; - - if (!(flags & FNM_NOESCAPE) && c == L('\\')) - { - if (*p == L('\0')) - return FNM_NOMATCH; - /* XXX 1003.2d11 is unclear if this is right. */ - ++p; - } - else if (c == L('[') && *p == L(':')) - { - int c1 = 0; - const CHAR *startp = p; - - while (1) - { - c = *++p; - if (++c1 == CHAR_CLASS_MAX_LENGTH) - return FNM_NOMATCH; - - if (*p == L(':') && p[1] == L(']')) - break; - - if (c < L('a') || c >= L('z')) - { - p = startp; - goto ignore_next; - } - } - p += 2; - c = *p++; - } - else if (c == L('[') && *p == L('=')) - { - c = *++p; - if (c == L('\0')) - return FNM_NOMATCH; - c = *++p; - if (c != L('=') || p[1] != L(']')) - return FNM_NOMATCH; - p += 2; - c = *p++; - } - else if (c == L('[') && *p == L('.')) - { - ++p; - while (1) - { - c = *++p; - if (c == '\0') - return FNM_NOMATCH; - - if (*p == L('.') && p[1] == L(']')) - break; - } - p += 2; - c = *p++; - } - } - while (c != L(']')); - if (not) - return FNM_NOMATCH; - } - break; - - case L('+'): - case L('@'): - case L('!'): - if (__builtin_expect (flags & FNM_EXTMATCH, 0) && *p == '(') - { - int res; - - res = EXT (c, p, n, string_end, no_leading_period, flags); - if (res != -1) - return res; - } - goto normal_match; - - case L('/'): - if (NO_LEADING_PERIOD (flags)) - { - if (n == string_end || c != (UCHAR) *n) - return FNM_NOMATCH; - - new_no_leading_period = 1; - break; - } - /* FALLTHROUGH */ - default: - normal_match: - if (n == string_end || c != FOLD ((UCHAR) *n)) - return FNM_NOMATCH; - } - - no_leading_period = new_no_leading_period; - ++n; - } - - if (n == string_end) - return 0; - - if ((flags & FNM_LEADING_DIR) && n != string_end && *n == L('/')) - /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */ - return 0; - - return FNM_NOMATCH; -} - - -static const CHAR * -internal_function -END (const CHAR *pattern) -{ - const CHAR *p = pattern; - - while (1) - if (*++p == L('\0')) - /* This is an invalid pattern. */ - return pattern; - else if (*p == L('[')) - { - /* Handle brackets special. */ - if (posixly_correct == 0) - posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1; - - /* Skip the not sign. We have to recognize it because of a possibly - following ']'. */ - if (*++p == L('!') || (posixly_correct < 0 && *p == L('^'))) - ++p; - /* A leading ']' is recognized as such. */ - if (*p == L(']')) - ++p; - /* Skip over all characters of the list. */ - while (*p != L(']')) - if (*p++ == L('\0')) - /* This is no valid pattern. */ - return pattern; - } - else if ((*p == L('?') || *p == L('*') || *p == L('+') || *p == L('@') - || *p == L('!')) && p[1] == L('(')) - p = END (p + 1); - else if (*p == L(')')) - break; - - return p + 1; -} - - -static int -internal_function -EXT (INT opt, const CHAR *pattern, const CHAR *string, const CHAR *string_end, - int no_leading_period, int flags) -{ - const CHAR *startp; - int level; - struct patternlist - { - struct patternlist *next; - CHAR str[1]; - } *list = NULL; - struct patternlist **lastp = &list; - size_t pattern_len = STRLEN (pattern); - const CHAR *p; - const CHAR *rs; - enum { ALLOCA_LIMIT = 8000 }; - - /* Parse the pattern. Store the individual parts in the list. */ - level = 0; - for (startp = p = pattern + 1; level >= 0; ++p) - if (*p == L('\0')) - /* This is an invalid pattern. */ - return -1; - else if (*p == L('[')) - { - /* Handle brackets special. */ - if (posixly_correct == 0) - posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1; - - /* Skip the not sign. We have to recognize it because of a possibly - following ']'. */ - if (*++p == L('!') || (posixly_correct < 0 && *p == L('^'))) - ++p; - /* A leading ']' is recognized as such. */ - if (*p == L(']')) - ++p; - /* Skip over all characters of the list. */ - while (*p != L(']')) - if (*p++ == L('\0')) - /* This is no valid pattern. */ - return -1; - } - else if ((*p == L('?') || *p == L('*') || *p == L('+') || *p == L('@') - || *p == L('!')) && p[1] == L('(')) - /* Remember the nesting level. */ - ++level; - else if (*p == L(')')) - { - if (level-- == 0) - { - /* This means we found the end of the pattern. */ -#define NEW_PATTERN \ - struct patternlist *newp; \ - size_t plen; \ - size_t plensize; \ - size_t newpsize; \ - \ - plen = (opt == L('?') || opt == L('@') \ - ? pattern_len \ - : p - startp + 1); \ - plensize = plen * sizeof (CHAR); \ - newpsize = offsetof (struct patternlist, str) + plensize; \ - if ((size_t) -1 / sizeof (CHAR) < plen \ - || newpsize < offsetof (struct patternlist, str) \ - || ALLOCA_LIMIT <= newpsize) \ - return -1; \ - newp = (struct patternlist *) alloca (newpsize); \ - *((CHAR *) MEMPCPY (newp->str, startp, p - startp)) = L('\0'); \ - newp->next = NULL; \ - *lastp = newp; \ - lastp = &newp->next - NEW_PATTERN; - } - } - else if (*p == L('|')) - { - if (level == 0) - { - NEW_PATTERN; - startp = p + 1; - } - } - assert (list != NULL); - assert (p[-1] == L(')')); -#undef NEW_PATTERN - - switch (opt) - { - case L('*'): - if (FCT (p, string, string_end, no_leading_period, flags) == 0) - return 0; - /* FALLTHROUGH */ - - case L('+'): - do - { - for (rs = string; rs <= string_end; ++rs) - /* First match the prefix with the current pattern with the - current pattern. */ - if (FCT (list->str, string, rs, no_leading_period, - flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD) == 0 - /* This was successful. Now match the rest with the rest - of the pattern. */ - && (FCT (p, rs, string_end, - rs == string - ? no_leading_period - : rs[-1] == '/' && NO_LEADING_PERIOD (flags) ? 1 : 0, - flags & FNM_FILE_NAME - ? flags : flags & ~FNM_PERIOD) == 0 - /* This didn't work. Try the whole pattern. */ - || (rs != string - && FCT (pattern - 1, rs, string_end, - rs == string - ? no_leading_period - : (rs[-1] == '/' && NO_LEADING_PERIOD (flags) - ? 1 : 0), - flags & FNM_FILE_NAME - ? flags : flags & ~FNM_PERIOD) == 0))) - /* It worked. Signal success. */ - return 0; - } - while ((list = list->next) != NULL); - - /* None of the patterns lead to a match. */ - return FNM_NOMATCH; - - case L('?'): - if (FCT (p, string, string_end, no_leading_period, flags) == 0) - return 0; - /* FALLTHROUGH */ - - case L('@'): - do - /* I cannot believe it but `strcat' is actually acceptable - here. Match the entire string with the prefix from the - pattern list and the rest of the pattern following the - pattern list. */ - if (FCT (STRCAT (list->str, p), string, string_end, - no_leading_period, - flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD) == 0) - /* It worked. Signal success. */ - return 0; - while ((list = list->next) != NULL); - - /* None of the patterns lead to a match. */ - return FNM_NOMATCH; - - case L('!'): - for (rs = string; rs <= string_end; ++rs) - { - struct patternlist *runp; - - for (runp = list; runp != NULL; runp = runp->next) - if (FCT (runp->str, string, rs, no_leading_period, - flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD) == 0) - break; - - /* If none of the patterns matched see whether the rest does. */ - if (runp == NULL - && (FCT (p, rs, string_end, - rs == string - ? no_leading_period - : rs[-1] == '/' && NO_LEADING_PERIOD (flags) ? 1 : 0, - flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD) - == 0)) - /* This is successful. */ - return 0; - } - - /* None of the patterns together with the rest of the pattern - lead to a match. */ - return FNM_NOMATCH; - - default: - assert (! "Invalid extended matching operator"); - break; - } - - return -1; -} - - -#undef FOLD -#undef CHAR -#undef UCHAR -#undef INT -#undef FCT -#undef EXT -#undef END -#undef MEMPCPY -#undef MEMCHR -#undef STRCOLL -#undef STRLEN -#undef STRCAT -#undef L -#undef BTOWC diff --git a/contrib/diff/lib/getopt.c b/contrib/diff/lib/getopt.c deleted file mode 100644 index 8f017f8..0000000 --- a/contrib/diff/lib/getopt.c +++ /dev/null @@ -1,1254 +0,0 @@ -/* Getopt for GNU. - NOTE: getopt is now part of the C library, so if you don't know what - "Keep this file name-space clean" means, talk to drepper@gnu.org - before changing it! - Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002,2003,2004 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>. - Ditto for AIX 3.2 and <stdlib.h>. */ -#ifndef _NO_PROTO -# define _NO_PROTO -#endif - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <stdio.h> - -/* Comment out all this code if we are using the GNU C Library, and are not - actually compiling the library itself. This code is part of the GNU C - Library, but also included in many other GNU distributions. Compiling - and linking in this code is a waste when using the GNU C library - (especially if it is a shared library). Rather than having every GNU - program understand `configure --with-gnu-libc' and omit the object files, - it is simpler to just do this in the source for each such file. */ - -#define GETOPT_INTERFACE_VERSION 2 -#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 -# include <gnu-versions.h> -# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION -# define ELIDE_CODE -# endif -#endif - -#ifndef ELIDE_CODE - - -/* This needs to come after some library #include - to get __GNU_LIBRARY__ defined. */ -#ifdef __GNU_LIBRARY__ -/* Don't include stdlib.h for non-GNU C libraries because some of them - contain conflicting prototypes for getopt. */ -# include <stdlib.h> -# include <unistd.h> -#endif /* GNU C library. */ - -#include <string.h> - -#ifdef VMS -# include <unixlib.h> -#endif - -#ifdef _LIBC -# include <libintl.h> -#else -# include "gettext.h" -# define _(msgid) gettext (msgid) -#endif - -#if defined _LIBC && defined USE_IN_LIBIO -# include <wchar.h> -#endif - -#ifndef attribute_hidden -# define attribute_hidden -#endif - -/* This version of `getopt' appears to the caller like standard Unix `getopt' - but it behaves differently for the user, since it allows the user - to intersperse the options with the other arguments. - - As `getopt' works, it permutes the elements of ARGV so that, - when it is done, all the options precede everything else. Thus - all application programs are extended to handle flexible argument order. - - Setting the environment variable POSIXLY_CORRECT disables permutation. - Then the behavior is completely standard. - - GNU application programs can use a third alternative mode in which - they can distinguish the relative order of options and other arguments. */ - -#include "getopt.h" -#include "getopt_int.h" - -/* For communication from `getopt' to the caller. - When `getopt' finds an option that takes an argument, - the argument value is returned here. - Also, when `ordering' is RETURN_IN_ORDER, - each non-option ARGV-element is returned here. */ - -char *optarg; - -/* Index in ARGV of the next element to be scanned. - This is used for communication to and from the caller - and for communication between successive calls to `getopt'. - - On entry to `getopt', zero means this is the first call; initialize. - - When `getopt' returns -1, this is the index of the first of the - non-option elements that the caller should itself scan. - - Otherwise, `optind' communicates from one call to the next - how much of ARGV has been scanned so far. */ - -/* 1003.2 says this must be 1 before any call. */ -int optind = 1; - -/* Callers store zero here to inhibit the error message - for unrecognized options. */ - -int opterr = 1; - -/* Set to an option character which was unrecognized. - This must be initialized on some systems to avoid linking in the - system's own getopt implementation. */ - -int optopt = '?'; - -/* Keep a global copy of all internal members of getopt_data. */ - -static struct _getopt_data getopt_data; - - -#ifndef __GNU_LIBRARY__ - -/* Avoid depending on library functions or files - whose names are inconsistent. */ - -#ifndef getenv -extern char *getenv (); -#endif - -#endif /* not __GNU_LIBRARY__ */ - -#ifdef _LIBC -/* Stored original parameters. - XXX This is no good solution. We should rather copy the args so - that we can compare them later. But we must not use malloc(3). */ -extern int __libc_argc; -extern char **__libc_argv; - -/* Bash 2.0 gives us an environment variable containing flags - indicating ARGV elements that should not be considered arguments. */ - -# ifdef USE_NONOPTION_FLAGS -/* Defined in getopt_init.c */ -extern char *__getopt_nonoption_flags; -# endif - -# ifdef USE_NONOPTION_FLAGS -# define SWAP_FLAGS(ch1, ch2) \ - if (d->__nonoption_flags_len > 0) \ - { \ - char __tmp = __getopt_nonoption_flags[ch1]; \ - __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ - __getopt_nonoption_flags[ch2] = __tmp; \ - } -# else -# define SWAP_FLAGS(ch1, ch2) -# endif -#else /* !_LIBC */ -# define SWAP_FLAGS(ch1, ch2) -#endif /* _LIBC */ - -/* Exchange two adjacent subsequences of ARGV. - One subsequence is elements [first_nonopt,last_nonopt) - which contains all the non-options that have been skipped so far. - The other is elements [last_nonopt,optind), which contains all - the options processed since those non-options were skipped. - - `first_nonopt' and `last_nonopt' are relocated so that they describe - the new indices of the non-options in ARGV after they are moved. */ - -static void -exchange (char **argv, struct _getopt_data *d) -{ - int bottom = d->__first_nonopt; - int middle = d->__last_nonopt; - int top = d->optind; - char *tem; - - /* Exchange the shorter segment with the far end of the longer segment. - That puts the shorter segment into the right place. - It leaves the longer segment in the right place overall, - but it consists of two parts that need to be swapped next. */ - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - /* First make sure the handling of the `__getopt_nonoption_flags' - string can work normally. Our top argument must be in the range - of the string. */ - if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len) - { - /* We must extend the array. The user plays games with us and - presents new arguments. */ - char *new_str = malloc (top + 1); - if (new_str == NULL) - d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0; - else - { - memset (__mempcpy (new_str, __getopt_nonoption_flags, - d->__nonoption_flags_max_len), - '\0', top + 1 - d->__nonoption_flags_max_len); - d->__nonoption_flags_max_len = top + 1; - __getopt_nonoption_flags = new_str; - } - } -#endif - - while (top > middle && middle > bottom) - { - if (top - middle > middle - bottom) - { - /* Bottom segment is the short one. */ - int len = middle - bottom; - register int i; - - /* Swap it with the top part of the top segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[top - (middle - bottom) + i]; - argv[top - (middle - bottom) + i] = tem; - SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); - } - /* Exclude the moved bottom segment from further swapping. */ - top -= len; - } - else - { - /* Top segment is the short one. */ - int len = top - middle; - register int i; - - /* Swap it with the bottom part of the bottom segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[middle + i]; - argv[middle + i] = tem; - SWAP_FLAGS (bottom + i, middle + i); - } - /* Exclude the moved top segment from further swapping. */ - bottom += len; - } - } - - /* Update records for the slots the non-options now occupy. */ - - d->__first_nonopt += (d->optind - d->__last_nonopt); - d->__last_nonopt = d->optind; -} - -/* Initialize the internal data when the first call is made. */ - -static const char * -_getopt_initialize (int argc, char *const *argv, const char *optstring, - struct _getopt_data *d) -{ - /* Start processing options with ARGV-element 1 (since ARGV-element 0 - is the program name); the sequence of previously skipped - non-option ARGV-elements is empty. */ - - d->__first_nonopt = d->__last_nonopt = d->optind; - - d->__nextchar = NULL; - - d->__posixly_correct = !!getenv ("POSIXLY_CORRECT"); - - /* Determine how to handle the ordering of options and nonoptions. */ - - if (optstring[0] == '-') - { - d->__ordering = RETURN_IN_ORDER; - ++optstring; - } - else if (optstring[0] == '+') - { - d->__ordering = REQUIRE_ORDER; - ++optstring; - } - else if (d->__posixly_correct) - d->__ordering = REQUIRE_ORDER; - else - d->__ordering = PERMUTE; - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - if (!d->__posixly_correct - && argc == __libc_argc && argv == __libc_argv) - { - if (d->__nonoption_flags_max_len == 0) - { - if (__getopt_nonoption_flags == NULL - || __getopt_nonoption_flags[0] == '\0') - d->__nonoption_flags_max_len = -1; - else - { - const char *orig_str = __getopt_nonoption_flags; - int len = d->__nonoption_flags_max_len = strlen (orig_str); - if (d->__nonoption_flags_max_len < argc) - d->__nonoption_flags_max_len = argc; - __getopt_nonoption_flags = - (char *) malloc (d->__nonoption_flags_max_len); - if (__getopt_nonoption_flags == NULL) - d->__nonoption_flags_max_len = -1; - else - memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), - '\0', d->__nonoption_flags_max_len - len); - } - } - d->__nonoption_flags_len = d->__nonoption_flags_max_len; - } - else - d->__nonoption_flags_len = 0; -#endif - - return optstring; -} - -/* Scan elements of ARGV (whose length is ARGC) for option characters - given in OPTSTRING. - - If an element of ARGV starts with '-', and is not exactly "-" or "--", - then it is an option element. The characters of this element - (aside from the initial '-') are option characters. If `getopt' - is called repeatedly, it returns successively each of the option characters - from each of the option elements. - - If `getopt' finds another option character, it returns that character, - updating `optind' and `nextchar' so that the next call to `getopt' can - resume the scan with the following option character or ARGV-element. - - If there are no more option characters, `getopt' returns -1. - Then `optind' is the index in ARGV of the first ARGV-element - that is not an option. (The ARGV-elements have been permuted - so that those that are not options now come last.) - - OPTSTRING is a string containing the legitimate option characters. - If an option character is seen that is not listed in OPTSTRING, - return '?' after printing an error message. If you set `opterr' to - zero, the error message is suppressed but we still return '?'. - - If a char in OPTSTRING is followed by a colon, that means it wants an arg, - so the following text in the same ARGV-element, or the text of the following - ARGV-element, is returned in `optarg'. Two colons mean an option that - wants an optional arg; if there is text in the current ARGV-element, - it is returned in `optarg', otherwise `optarg' is set to zero. - - If OPTSTRING starts with `-' or `+', it requests different methods of - handling the non-option ARGV-elements. - See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. - - Long-named options begin with `--' instead of `-'. - Their names may be abbreviated as long as the abbreviation is unique - or is an exact match for some defined option. If they have an - argument, it follows the option name in the same ARGV-element, separated - from the option name by a `=', or else the in next ARGV-element. - When `getopt' finds a long-named option, it returns 0 if that option's - `flag' field is nonzero, the value of the option's `val' field - if the `flag' field is zero. - - The elements of ARGV aren't really const, because we permute them. - But we pretend they're const in the prototype to be compatible - with other systems. - - LONGOPTS is a vector of `struct option' terminated by an - element containing a name which is zero. - - LONGIND returns the index in LONGOPT of the long-named option found. - It is only valid when a long-named option has been found by the most - recent call. - - If LONG_ONLY is nonzero, '-' as well as '--' can introduce - long-named options. */ - -int -_getopt_internal_r (int argc, char *const *argv, const char *optstring, - const struct option *longopts, int *longind, - int long_only, struct _getopt_data *d) -{ - int print_errors = d->opterr; - if (optstring[0] == ':') - print_errors = 0; - - if (argc < 1) - return -1; - - d->optarg = NULL; - - if (d->optind == 0 || !d->__initialized) - { - if (d->optind == 0) - d->optind = 1; /* Don't scan ARGV[0], the program name. */ - optstring = _getopt_initialize (argc, argv, optstring, d); - d->__initialized = 1; - } - - /* Test whether ARGV[optind] points to a non-option argument. - Either it does not have option syntax, or there is an environment flag - from the shell indicating it is not an option. The later information - is only used when the used in the GNU libc. */ -#if defined _LIBC && defined USE_NONOPTION_FLAGS -# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \ - || (d->optind < d->__nonoption_flags_len \ - && __getopt_nonoption_flags[d->optind] == '1')) -#else -# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0') -#endif - - if (d->__nextchar == NULL || *d->__nextchar == '\0') - { - /* Advance to the next ARGV-element. */ - - /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been - moved back by the user (who may also have changed the arguments). */ - if (d->__last_nonopt > d->optind) - d->__last_nonopt = d->optind; - if (d->__first_nonopt > d->optind) - d->__first_nonopt = d->optind; - - if (d->__ordering == PERMUTE) - { - /* If we have just processed some options following some non-options, - exchange them so that the options come first. */ - - if (d->__first_nonopt != d->__last_nonopt - && d->__last_nonopt != d->optind) - exchange ((char **) argv, d); - else if (d->__last_nonopt != d->optind) - d->__first_nonopt = d->optind; - - /* Skip any additional non-options - and extend the range of non-options previously skipped. */ - - while (d->optind < argc && NONOPTION_P) - d->optind++; - d->__last_nonopt = d->optind; - } - - /* The special ARGV-element `--' means premature end of options. - Skip it like a null option, - then exchange with previous non-options as if it were an option, - then skip everything else like a non-option. */ - - if (d->optind != argc && !strcmp (argv[d->optind], "--")) - { - d->optind++; - - if (d->__first_nonopt != d->__last_nonopt - && d->__last_nonopt != d->optind) - exchange ((char **) argv, d); - else if (d->__first_nonopt == d->__last_nonopt) - d->__first_nonopt = d->optind; - d->__last_nonopt = argc; - - d->optind = argc; - } - - /* If we have done all the ARGV-elements, stop the scan - and back over any non-options that we skipped and permuted. */ - - if (d->optind == argc) - { - /* Set the next-arg-index to point at the non-options - that we previously skipped, so the caller will digest them. */ - if (d->__first_nonopt != d->__last_nonopt) - d->optind = d->__first_nonopt; - return -1; - } - - /* If we have come to a non-option and did not permute it, - either stop the scan or describe it to the caller and pass it by. */ - - if (NONOPTION_P) - { - if (d->__ordering == REQUIRE_ORDER) - return -1; - d->optarg = argv[d->optind++]; - return 1; - } - - /* We have found another option-ARGV-element. - Skip the initial punctuation. */ - - d->__nextchar = (argv[d->optind] + 1 - + (longopts != NULL && argv[d->optind][1] == '-')); - } - - /* Decode the current option-ARGV-element. */ - - /* Check whether the ARGV-element is a long option. - - If long_only and the ARGV-element has the form "-f", where f is - a valid short option, don't consider it an abbreviated form of - a long option that starts with f. Otherwise there would be no - way to give the -f short option. - - On the other hand, if there's a long option "fubar" and - the ARGV-element is "-fu", do consider that an abbreviation of - the long option, just like "--fu", and not "-f" with arg "u". - - This distinction seems to be the most useful approach. */ - - if (longopts != NULL - && (argv[d->optind][1] == '-' - || (long_only && (argv[d->optind][2] - || !strchr (optstring, argv[d->optind][1]))))) - { - char *nameend; - const struct option *p; - const struct option *pfound = NULL; - int exact = 0; - int ambig = 0; - int indfound = -1; - int option_index; - - for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++) - /* Do nothing. */ ; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar)) - { - if ((unsigned int) (nameend - d->__nextchar) - == (unsigned int) strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else if (long_only - || pfound->has_arg != p->has_arg - || pfound->flag != p->flag - || pfound->val != p->val) - /* Second or later nonexact match found. */ - ambig = 1; - } - - if (ambig && !exact) - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"), - argv[0], argv[d->optind]) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("%s: option `%s' is ambiguous\n"), - argv[0], argv[d->optind]); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optind++; - d->optopt = 0; - return '?'; - } - - if (pfound != NULL) - { - option_index = indfound; - d->optind++; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - d->optarg = nameend + 1; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - int n; -#endif - - if (argv[d->optind - 1][1] == '-') - { - /* --option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("\ -%s: option `--%s' doesn't allow an argument\n"), - argv[0], pfound->name); -#else - fprintf (stderr, _("\ -%s: option `--%s' doesn't allow an argument\n"), - argv[0], pfound->name); -#endif - } - else - { - /* +option or -option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("\ -%s: option `%c%s' doesn't allow an argument\n"), - argv[0], argv[d->optind - 1][0], - pfound->name); -#else - fprintf (stderr, _("\ -%s: option `%c%s' doesn't allow an argument\n"), - argv[0], argv[d->optind - 1][0], - pfound->name); -#endif - } - -#if defined _LIBC && defined USE_IN_LIBIO - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - - d->__nextchar += strlen (d->__nextchar); - - d->optopt = pfound->val; - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (d->optind < argc) - d->optarg = argv[d->optind++]; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option `%s' requires an argument\n"), - argv[0], argv[d->optind - 1]) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option `%s' requires an argument\n"), - argv[0], argv[d->optind - 1]); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optopt = pfound->val; - return optstring[0] == ':' ? ':' : '?'; - } - } - d->__nextchar += strlen (d->__nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - - /* Can't find it as a long option. If this is not getopt_long_only, - or the option starts with '--' or is not a valid short - option, then it's an error. - Otherwise interpret it as a short option. */ - if (!long_only || argv[d->optind][1] == '-' - || strchr (optstring, *d->__nextchar) == NULL) - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - int n; -#endif - - if (argv[d->optind][1] == '-') - { - /* --option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"), - argv[0], d->__nextchar); -#else - fprintf (stderr, _("%s: unrecognized option `--%s'\n"), - argv[0], d->__nextchar); -#endif - } - else - { - /* +option or -option */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"), - argv[0], argv[d->optind][0], d->__nextchar); -#else - fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), - argv[0], argv[d->optind][0], d->__nextchar); -#endif - } - -#if defined _LIBC && defined USE_IN_LIBIO - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - d->__nextchar = (char *) ""; - d->optind++; - d->optopt = 0; - return '?'; - } - } - - /* Look at and handle the next short option-character. */ - - { - char c = *d->__nextchar++; - char *temp = strchr (optstring, c); - - /* Increment `optind' when we start to process its last character. */ - if (*d->__nextchar == '\0') - ++d->optind; - - if (temp == NULL || c == ':') - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - int n; -#endif - - if (d->__posixly_correct) - { - /* 1003.2 specifies the format of this message. */ -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("%s: illegal option -- %c\n"), - argv[0], c); -#else - fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c); -#endif - } - else - { -#if defined _LIBC && defined USE_IN_LIBIO - n = __asprintf (&buf, _("%s: invalid option -- %c\n"), - argv[0], c); -#else - fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c); -#endif - } - -#if defined _LIBC && defined USE_IN_LIBIO - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - d->optopt = c; - return '?'; - } - /* Convenience. Treat POSIX -W foo same as long option --foo */ - if (temp[0] == 'W' && temp[1] == ';') - { - char *nameend; - const struct option *p; - const struct option *pfound = NULL; - int exact = 0; - int ambig = 0; - int indfound = 0; - int option_index; - - /* This is an option that requires an argument. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - d->optind++; - } - else if (d->optind == argc) - { - if (print_errors) - { - /* 1003.2 specifies the format of this message. */ -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, - _("%s: option requires an argument -- %c\n"), - argv[0], c) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("%s: option requires an argument -- %c\n"), - argv[0], c); -#endif - } - d->optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - return c; - } - else - /* We already incremented `d->optind' once; - increment it again when taking next ARGV-elt as argument. */ - d->optarg = argv[d->optind++]; - - /* optarg is now the argument, see if it's in the - table of longopts. */ - - for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '='; - nameend++) - /* Do nothing. */ ; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar)) - { - if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else - /* Second or later nonexact match found. */ - ambig = 1; - } - if (ambig && !exact) - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"), - argv[0], argv[d->optind]) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), - argv[0], argv[d->optind]); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optind++; - return '?'; - } - if (pfound != NULL) - { - option_index = indfound; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - d->optarg = nameend + 1; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option `-W %s' doesn't allow an argument\n"), - argv[0], pfound->name) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("\ -%s: option `-W %s' doesn't allow an argument\n"), - argv[0], pfound->name); -#endif - } - - d->__nextchar += strlen (d->__nextchar); - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (d->optind < argc) - d->optarg = argv[d->optind++]; - else - { - if (print_errors) - { -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option `%s' requires an argument\n"), - argv[0], argv[d->optind - 1]) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option `%s' requires an argument\n"), - argv[0], argv[d->optind - 1]); -#endif - } - d->__nextchar += strlen (d->__nextchar); - return optstring[0] == ':' ? ':' : '?'; - } - } - d->__nextchar += strlen (d->__nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - d->__nextchar = NULL; - return 'W'; /* Let the application handle it. */ - } - if (temp[1] == ':') - { - if (temp[2] == ':') - { - /* This is an option that accepts an argument optionally. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - d->optind++; - } - else - d->optarg = NULL; - d->__nextchar = NULL; - } - else - { - /* This is an option that requires an argument. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - d->optind++; - } - else if (d->optind == argc) - { - if (print_errors) - { - /* 1003.2 specifies the format of this message. */ -#if defined _LIBC && defined USE_IN_LIBIO - char *buf; - - if (__asprintf (&buf, _("\ -%s: option requires an argument -- %c\n"), - argv[0], c) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - if (_IO_fwide (stderr, 0) > 0) - __fwprintf (stderr, L"%s", buf); - else - fputs (buf, stderr); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option requires an argument -- %c\n"), - argv[0], c); -#endif - } - d->optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - } - else - /* We already incremented `optind' once; - increment it again when taking next ARGV-elt as argument. */ - d->optarg = argv[d->optind++]; - d->__nextchar = NULL; - } - } - return c; - } -} - -int -_getopt_internal (int argc, char *const *argv, const char *optstring, - const struct option *longopts, int *longind, int long_only) -{ - int result; - - getopt_data.optind = optind; - getopt_data.opterr = opterr; - - result = _getopt_internal_r (argc, argv, optstring, longopts, - longind, long_only, &getopt_data); - - optind = getopt_data.optind; - optarg = getopt_data.optarg; - optopt = getopt_data.optopt; - - return result; -} - -int -getopt (int argc, char *const *argv, const char *optstring) -{ - return _getopt_internal (argc, argv, optstring, - (const struct option *) 0, - (int *) 0, - 0); -} - -#endif /* Not ELIDE_CODE. */ - -#ifdef TEST - -/* Compile with -DTEST to make an executable for use in testing - the above definition of `getopt'. */ - -int -main (int argc, char **argv) -{ - int c; - int digit_optind = 0; - - while (1) - { - int this_option_optind = optind ? optind : 1; - - c = getopt (argc, argv, "abc:d:0123456789"); - if (c == -1) - break; - - switch (c) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (digit_optind != 0 && digit_optind != this_option_optind) - printf ("digits occur in two different argv-elements.\n"); - digit_optind = this_option_optind; - printf ("option %c\n", c); - break; - - case 'a': - printf ("option a\n"); - break; - - case 'b': - printf ("option b\n"); - break; - - case 'c': - printf ("option c with value `%s'\n", optarg); - break; - - case '?': - break; - - default: - printf ("?? getopt returned character code 0%o ??\n", c); - } - } - - if (optind < argc) - { - printf ("non-option ARGV-elements: "); - while (optind < argc) - printf ("%s ", argv[optind++]); - printf ("\n"); - } - - exit (0); -} - -#endif /* TEST */ diff --git a/contrib/diff/lib/getopt1.c b/contrib/diff/lib/getopt1.c deleted file mode 100644 index 7671eba..0000000 --- a/contrib/diff/lib/getopt1.c +++ /dev/null @@ -1,191 +0,0 @@ -/* getopt_long and getopt_long_only entry points for GNU getopt. - Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#ifdef _LIBC -# include <getopt.h> -#else -# include "getopt.h" -#endif -#include "getopt_int.h" - -#include <stdio.h> - -/* Comment out all this code if we are using the GNU C Library, and are not - actually compiling the library itself. This code is part of the GNU C - Library, but also included in many other GNU distributions. Compiling - and linking in this code is a waste when using the GNU C library - (especially if it is a shared library). Rather than having every GNU - program understand `configure --with-gnu-libc' and omit the object files, - it is simpler to just do this in the source for each such file. */ - -#define GETOPT_INTERFACE_VERSION 2 -#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 -#include <gnu-versions.h> -#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION -#define ELIDE_CODE -#endif -#endif - -#ifndef ELIDE_CODE - - -/* This needs to come after some library #include - to get __GNU_LIBRARY__ defined. */ -#ifdef __GNU_LIBRARY__ -#include <stdlib.h> -#endif - -#ifndef NULL -#define NULL 0 -#endif - -int -getopt_long (int argc, char *const *argv, const char *options, - const struct option *long_options, int *opt_index) -{ - return _getopt_internal (argc, argv, options, long_options, opt_index, 0); -} - -int -_getopt_long_r (int argc, char *const *argv, const char *options, - const struct option *long_options, int *opt_index, - struct _getopt_data *d) -{ - return _getopt_internal_r (argc, argv, options, long_options, opt_index, - 0, d); -} - -/* Like getopt_long, but '-' as well as '--' can indicate a long option. - If an option that starts with '-' (not '--') doesn't match a long option, - but does match a short option, it is parsed as a short option - instead. */ - -int -getopt_long_only (int argc, char *const *argv, const char *options, - const struct option *long_options, int *opt_index) -{ - return _getopt_internal (argc, argv, options, long_options, opt_index, 1); -} - -int -_getopt_long_only_r (int argc, char *const *argv, const char *options, - const struct option *long_options, int *opt_index, - struct _getopt_data *d) -{ - return _getopt_internal_r (argc, argv, options, long_options, opt_index, - 1, d); -} - -#endif /* Not ELIDE_CODE. */ - -#ifdef TEST - -#include <stdio.h> - -int -main (int argc, char **argv) -{ - int c; - int digit_optind = 0; - - while (1) - { - int this_option_optind = optind ? optind : 1; - int option_index = 0; - static struct option long_options[] = - { - {"add", 1, 0, 0}, - {"append", 0, 0, 0}, - {"delete", 1, 0, 0}, - {"verbose", 0, 0, 0}, - {"create", 0, 0, 0}, - {"file", 1, 0, 0}, - {0, 0, 0, 0} - }; - - c = getopt_long (argc, argv, "abc:d:0123456789", - long_options, &option_index); - if (c == -1) - break; - - switch (c) - { - case 0: - printf ("option %s", long_options[option_index].name); - if (optarg) - printf (" with arg %s", optarg); - printf ("\n"); - break; - - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (digit_optind != 0 && digit_optind != this_option_optind) - printf ("digits occur in two different argv-elements.\n"); - digit_optind = this_option_optind; - printf ("option %c\n", c); - break; - - case 'a': - printf ("option a\n"); - break; - - case 'b': - printf ("option b\n"); - break; - - case 'c': - printf ("option c with value `%s'\n", optarg); - break; - - case 'd': - printf ("option d with value `%s'\n", optarg); - break; - - case '?': - break; - - default: - printf ("?? getopt returned character code 0%o ??\n", c); - } - } - - if (optind < argc) - { - printf ("non-option ARGV-elements: "); - while (optind < argc) - printf ("%s ", argv[optind++]); - printf ("\n"); - } - - exit (0); -} - -#endif /* TEST */ diff --git a/contrib/diff/lib/getopt_int.h b/contrib/diff/lib/getopt_int.h deleted file mode 100644 index 0c5edde..0000000 --- a/contrib/diff/lib/getopt_int.h +++ /dev/null @@ -1,129 +0,0 @@ -/* Internal declarations for getopt. - Copyright (C) 1989-1994,1996-1999,2001,2003,2004 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _GETOPT_INT_H -#define _GETOPT_INT_H 1 - -extern int _getopt_internal (int ___argc, char *const *___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind, - int __long_only); - - -/* Reentrant versions which can handle parsing multiple argument - vectors at the same time. */ - -/* Data type for reentrant functions. */ -struct _getopt_data -{ - /* These have exactly the same meaning as the corresponding global - variables, except that they are used for the reentrant - versions of getopt. */ - int optind; - int opterr; - int optopt; - char *optarg; - - /* Internal members. */ - - /* True if the internal members have been initialized. */ - int __initialized; - - /* The next char to be scanned in the option-element - in which the last option character we returned was found. - This allows us to pick up the scan where we left off. - - If this is zero, or a null string, it means resume the scan - by advancing to the next ARGV-element. */ - char *__nextchar; - - /* Describe how to deal with options that follow non-option ARGV-elements. - - If the caller did not specify anything, - the default is REQUIRE_ORDER if the environment variable - POSIXLY_CORRECT is defined, PERMUTE otherwise. - - REQUIRE_ORDER means don't recognize them as options; - stop option processing when the first non-option is seen. - This is what Unix does. - This mode of operation is selected by either setting the environment - variable POSIXLY_CORRECT, or using `+' as the first character - of the list of option characters. - - PERMUTE is the default. We permute the contents of ARGV as we - scan, so that eventually all the non-options are at the end. - This allows options to be given in any order, even with programs - that were not written to expect this. - - RETURN_IN_ORDER is an option available to programs that were - written to expect options and other ARGV-elements in any order - and that care about the ordering of the two. We describe each - non-option ARGV-element as if it were the argument of an option - with character code 1. Using `-' as the first character of the - list of option characters selects this mode of operation. - - The special argument `--' forces an end of option-scanning regardless - of the value of `ordering'. In the case of RETURN_IN_ORDER, only - `--' can cause `getopt' to return -1 with `optind' != ARGC. */ - - enum - { - REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER - } __ordering; - - /* If the POSIXLY_CORRECT environment variable is set. */ - int __posixly_correct; - - - /* Handle permutation of arguments. */ - - /* Describe the part of ARGV that contains non-options that have - been skipped. `first_nonopt' is the index in ARGV of the first - of them; `last_nonopt' is the index after the last of them. */ - - int __first_nonopt; - int __last_nonopt; - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - int __nonoption_flags_max_len; - int __nonoption_flags_len; -# endif -}; - -/* The initializer is necessary to set OPTIND and OPTERR to their - default values and to clear the initialization flag. */ -#define _GETOPT_DATA_INITIALIZER { 1, 1 } - -extern int _getopt_internal_r (int ___argc, char *const *___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind, - int __long_only, struct _getopt_data *__data); - -extern int _getopt_long_r (int ___argc, char *const *___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind, - struct _getopt_data *__data); - -extern int _getopt_long_only_r (int ___argc, char *const *___argv, - const char *__shortopts, - const struct option *__longopts, - int *__longind, - struct _getopt_data *__data); - -#endif /* getopt_int.h */ diff --git a/contrib/diff/lib/gettimeofday.c b/contrib/diff/lib/gettimeofday.c deleted file mode 100644 index 1ebe4d0..0000000 --- a/contrib/diff/lib/gettimeofday.c +++ /dev/null @@ -1,121 +0,0 @@ -/* Work around the bug in some systems whereby gettimeofday clobbers the - static buffer that localtime uses for it's return value. The gettimeofday - function from Mac OS X 10.0.4, i.e. Darwin 1.3.7 has this problem. - The tzset replacement is necessary for at least Solaris 2.5, 2.5.1, and 2.6. - Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* written by Jim Meyering */ - -#include <config.h> - -/* Disable the definitions of these functions (from config.h) - so we can use the library versions here. */ -#undef gettimeofday -#undef gmtime -#undef localtime -#undef tzset - -#include <sys/types.h> - -#if TIME_WITH_SYS_TIME -# include <sys/time.h> -# include <time.h> -#else -# if HAVE_SYS_TIME_H -# include <sys/time.h> -# else -# include <time.h> -# endif -#endif - -#include <stdlib.h> - -static struct tm *localtime_buffer_addr; - -/* This is a wrapper for localtime. It is used only on systems for which - gettimeofday clobbers the static buffer used for localtime's result. - - On the first call, record the address of the static buffer that - localtime uses for its result. */ - -struct tm * -rpl_localtime (const time_t *timep) -{ - struct tm *tm = localtime (timep); - - if (! localtime_buffer_addr) - localtime_buffer_addr = tm; - - return tm; -} - -/* Same as above, since gmtime and localtime use the same buffer. */ -struct tm * -rpl_gmtime (const time_t *timep) -{ - struct tm *tm = gmtime (timep); - - if (! localtime_buffer_addr) - localtime_buffer_addr = tm; - - return tm; -} - -/* This is a wrapper for gettimeofday. It is used only on systems for which - gettimeofday clobbers the static buffer used for localtime's result. - - Save and restore the contents of the buffer used for localtime's result - around the call to gettimeofday. */ - -int -rpl_gettimeofday (struct timeval *tv, struct timezone *tz) -{ - struct tm save; - int result; - - if (! localtime_buffer_addr) - { - time_t t = 0; - localtime_buffer_addr = localtime (&t); - } - - save = *localtime_buffer_addr; - result = gettimeofday (tv, tz); - *localtime_buffer_addr = save; - - return result; -} - -/* This is a wrapper for tzset. It is used only on systems for which - tzset may clobber the static buffer used for localtime's result. - Save and restore the contents of the buffer used for localtime's - result around the call to tzset. */ -void -rpl_tzset (void) -{ - struct tm save; - - if (! localtime_buffer_addr) - { - time_t t = 0; - localtime_buffer_addr = localtime (&t); - } - - save = *localtime_buffer_addr; - tzset (); - *localtime_buffer_addr = save; -} diff --git a/contrib/diff/lib/imaxtostr.c b/contrib/diff/lib/imaxtostr.c deleted file mode 100644 index 5e87ad5..0000000 --- a/contrib/diff/lib/imaxtostr.c +++ /dev/null @@ -1,3 +0,0 @@ -#define inttostr imaxtostr -#define inttype intmax_t -#include "inttostr.c" diff --git a/contrib/diff/lib/inttostr.c b/contrib/diff/lib/inttostr.c deleted file mode 100644 index 78a48af..0000000 --- a/contrib/diff/lib/inttostr.c +++ /dev/null @@ -1,49 +0,0 @@ -/* inttostr.c -- convert integers to printable strings - - Copyright (C) 2001 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Written by Paul Eggert */ - -#include "inttostr.h" - -/* Convert I to a printable string in BUF, which must be at least - INT_BUFSIZE_BOUND (INTTYPE) bytes long. Return the address of the - printable string, which need not start at BUF. */ - -char * -inttostr (inttype i, char *buf) -{ - char *p = buf + INT_STRLEN_BOUND (inttype); - *p = 0; - - if (i < 0) - { - do - *--p = '0' - i % 10; - while ((i /= 10) != 0); - - *--p = '-'; - } - else - { - do - *--p = '0' + i % 10; - while ((i /= 10) != 0); - } - - return p; -} diff --git a/contrib/diff/lib/malloc.c b/contrib/diff/lib/malloc.c deleted file mode 100644 index a43d169..0000000 --- a/contrib/diff/lib/malloc.c +++ /dev/null @@ -1,36 +0,0 @@ -/* Work around bug on some systems where malloc (0) fails. - Copyright (C) 1997, 1998 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* written by Jim Meyering */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif -#undef malloc - -#include <stdlib.h> - -/* Allocate an N-byte block of memory from the heap. - If N is zero, allocate a 1-byte block. */ - -void * -rpl_malloc (size_t n) -{ - if (n == 0) - n = 1; - return malloc (n); -} diff --git a/contrib/diff/lib/mkstemp.c b/contrib/diff/lib/mkstemp.c deleted file mode 100644 index f6312b6..0000000 --- a/contrib/diff/lib/mkstemp.c +++ /dev/null @@ -1,42 +0,0 @@ -/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc. - This file is derived from the one in the GNU C Library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include <config.h> - -/* Disable the definition of mkstemp to rpl_mkstemp (from config.h) in this - file. Otherwise, we'd get conflicting prototypes for rpl_mkstemp on - most systems. */ -#undef mkstemp - -#include <stdio.h> -#include <stdlib.h> - -#ifndef __GT_FILE -# define __GT_FILE 0 -#endif - -int __gen_tempname (); - -/* Generate a unique temporary file name from TEMPLATE. - The last six characters of TEMPLATE must be "XXXXXX"; - they are replaced with a string that makes the filename unique. - Then open the file and return a fd. */ -int -rpl_mkstemp (char *template) -{ - return __gen_tempname (template, __GT_FILE); -} diff --git a/contrib/diff/lib/offtostr.c b/contrib/diff/lib/offtostr.c deleted file mode 100644 index 45196e2..0000000 --- a/contrib/diff/lib/offtostr.c +++ /dev/null @@ -1,3 +0,0 @@ -#define inttostr offtostr -#define inttype off_t -#include "inttostr.c" diff --git a/contrib/diff/lib/realloc.c b/contrib/diff/lib/realloc.c deleted file mode 100644 index ccbf991..0000000 --- a/contrib/diff/lib/realloc.c +++ /dev/null @@ -1,39 +0,0 @@ -/* Work around bug on some systems where realloc (NULL, 0) fails. - Copyright (C) 1997, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* written by Jim Meyering */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif -#undef realloc - -#include <stdlib.h> - -/* Change the size of an allocated block of memory P to N bytes, - with error checking. If N is zero, change it to 1. If P is NULL, - use malloc. */ - -void * -rpl_realloc (void *p, size_t n) -{ - if (n == 0) - n = 1; - if (p == 0) - return malloc (n); - return realloc (p, n); -} diff --git a/contrib/diff/lib/regex.c b/contrib/diff/lib/regex.c deleted file mode 100644 index ac70b90..0000000 --- a/contrib/diff/lib/regex.c +++ /dev/null @@ -1,8298 +0,0 @@ -/* Extended regular expression matching and search library, - version 0.12. - (Implements POSIX draft P1003.2/D11.2, except for some of the - internationalization features.) - - Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, - 2002, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* AIX requires this to be the first thing in the file. */ -#if defined _AIX && !defined REGEX_MALLOC - #pragma alloca -#endif - -#undef _GNU_SOURCE -#define _GNU_SOURCE - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#ifndef INSIDE_RECURSION - -# include <stddef.h> - -# define WIDE_CHAR_SUPPORT (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC) - -/* For platform which support the ISO C amendement 1 functionality we - support user defined character classes. */ -# if defined _LIBC || WIDE_CHAR_SUPPORT -/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */ -# include <wchar.h> -# include <wctype.h> -# endif - -# ifdef _LIBC -/* We have to keep the namespace clean. */ -# define regfree(preg) __regfree (preg) -# define regexec(pr, st, nm, pm, ef) __regexec (pr, st, nm, pm, ef) -# define regcomp(preg, pattern, cflags) __regcomp (preg, pattern, cflags) -# define regerror(errcode, preg, errbuf, errbuf_size) \ - __regerror(errcode, preg, errbuf, errbuf_size) -# define re_set_registers(bu, re, nu, st, en) \ - __re_set_registers (bu, re, nu, st, en) -# define re_match_2(bufp, string1, size1, string2, size2, pos, regs, stop) \ - __re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop) -# define re_match(bufp, string, size, pos, regs) \ - __re_match (bufp, string, size, pos, regs) -# define re_search(bufp, string, size, startpos, range, regs) \ - __re_search (bufp, string, size, startpos, range, regs) -# define re_compile_pattern(pattern, length, bufp) \ - __re_compile_pattern (pattern, length, bufp) -# define re_set_syntax(syntax) __re_set_syntax (syntax) -# define re_search_2(bufp, st1, s1, st2, s2, startpos, range, regs, stop) \ - __re_search_2 (bufp, st1, s1, st2, s2, startpos, range, regs, stop) -# define re_compile_fastmap(bufp) __re_compile_fastmap (bufp) - -# define btowc __btowc -# define iswctype __iswctype -# define mbrtowc __mbrtowc -# define wcslen __wcslen -# define wcscoll __wcscoll -# define wcrtomb __wcrtomb - -/* We are also using some library internals. */ -# include <locale/localeinfo.h> -# include <locale/elem-hash.h> -# include <langinfo.h> -# include <locale/coll-lookup.h> -# endif - -# ifdef _LIBC -# include <libintl.h> -# undef gettext -# define gettext(msgid) __dcgettext ("libc", msgid, LC_MESSAGES) - /* This define is so xgettext can find the internationalizable strings. */ -# define gettext_noop(msgid) msgid -# else -/* This is for other GNU distributions with internationalized messages. */ -# include "gettext.h" -# endif - -/* Support for bounded pointers. */ -# if !defined _LIBC && !defined __BOUNDED_POINTERS__ -# define __bounded /* nothing */ -# define __unbounded /* nothing */ -# define __ptrvalue /* nothing */ -# endif - -/* The `emacs' switch turns on certain matching commands - that make sense only in Emacs. */ -# ifdef emacs - -# include "lisp.h" -# include "buffer.h" -# include "syntax.h" - -# else /* not emacs */ - -/* If we are not linking with Emacs proper, - we can't use the relocating allocator - even if config.h says that we can. */ -# undef REL_ALLOC - -# include <stdlib.h> - -/* When used in Emacs's lib-src, we need to get bzero and bcopy somehow. - If nothing else has been done, use the method below. */ -# ifdef INHIBIT_STRING_HEADER -# if !(defined HAVE_BZERO && defined HAVE_BCOPY) -# if !defined bzero && !defined bcopy -# undef INHIBIT_STRING_HEADER -# endif -# endif -# endif - -/* This is the normal way of making sure we have a bcopy and a bzero. - This is used in most programs--a few other programs avoid this - by defining INHIBIT_STRING_HEADER. */ -# ifndef INHIBIT_STRING_HEADER -# include <string.h> -# ifndef bzero -# ifndef _LIBC -# define bzero(s, n) (memset (s, '\0', n), (s)) -# else -# define bzero(s, n) __bzero (s, n) -# endif -# endif -# endif - -/* Define the syntax stuff for \<, \>, etc. */ - -/* This must be nonzero for the wordchar and notwordchar pattern - commands in re_match_2. */ -# ifndef Sword -# define Sword 1 -# endif - -# ifdef SWITCH_ENUM_BUG -# define SWITCH_ENUM_CAST(x) ((int)(x)) -# else -# define SWITCH_ENUM_CAST(x) (x) -# endif - -# endif /* not emacs */ - -# include <limits.h> - -# ifndef MB_LEN_MAX -# define MB_LEN_MAX 1 -# endif - -/* Get the interface, including the syntax bits. */ -# include <regex.h> - -/* isalpha etc. are used for the character classes. */ -# include <ctype.h> - -/* Jim Meyering writes: - - "... Some ctype macros are valid only for character codes that - isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when - using /bin/cc or gcc but without giving an ansi option). So, all - ctype uses should be through macros like ISPRINT... If - STDC_HEADERS is defined, then autoconf has verified that the ctype - macros don't need to be guarded with references to isascii. ... - Defining isascii to 1 should let any compiler worth its salt - eliminate the && through constant folding." - Solaris defines some of these symbols so we must undefine them first. */ - -# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII) -# define IN_CTYPE_DOMAIN(c) 1 -# else -# define IN_CTYPE_DOMAIN(c) isascii(c) -# endif - -# ifdef isblank -# define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (c)) -# else -# define ISBLANK(c) ((c) == ' ' || (c) == '\t') -# endif -# ifdef isgraph -# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (c)) -# else -# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (c) && !isspace (c)) -# endif - -# undef ISPRINT -# define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c)) -# define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit (c)) -# define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c)) -# define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c)) -# define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c)) -# define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c)) -# define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (c)) -# define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c)) -# define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c)) -# define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c)) - -# ifdef _tolower -# define TOLOWER(c) _tolower(c) -# else -# define TOLOWER(c) tolower(c) -# endif - -# ifndef emacs -/* How many characters in the character set. */ -# define CHAR_SET_SIZE 256 - -# ifdef SYNTAX_TABLE - -extern char *re_syntax_table; - -# else /* not SYNTAX_TABLE */ - -static char re_syntax_table[CHAR_SET_SIZE]; - -static void -init_syntax_once (void) -{ - register int c; - static int done = 0; - - if (done) - return; - bzero (re_syntax_table, sizeof re_syntax_table); - - for (c = 0; c < CHAR_SET_SIZE; ++c) - if (ISALNUM (c)) - re_syntax_table[c] = Sword; - - re_syntax_table['_'] = Sword; - - done = 1; -} - -# endif /* not SYNTAX_TABLE */ - -# define SYNTAX(c) re_syntax_table[(unsigned char) (c)] - -# endif /* emacs */ - -/* Should we use malloc or alloca? If REGEX_MALLOC is not defined, we - use `alloca' instead of `malloc'. This is because using malloc in - re_search* or re_match* could cause memory leaks when C-g is used in - Emacs; also, malloc is slower and causes storage fragmentation. On - the other hand, malloc is more portable, and easier to debug. - - Because we sometimes use alloca, some routines have to be macros, - not functions -- `alloca'-allocated space disappears at the end of the - function it is called in. */ - -# ifdef REGEX_MALLOC - -# define REGEX_ALLOCATE malloc -# define REGEX_REALLOCATE(source, osize, nsize) realloc (source, nsize) -# define REGEX_FREE free - -# else /* not REGEX_MALLOC */ - -/* Emacs already defines alloca, sometimes. */ -# ifndef alloca - -/* Make alloca work the best possible way. */ -# ifdef __GNUC__ -# define alloca __builtin_alloca -# else /* not __GNUC__ */ -# if HAVE_ALLOCA_H -# include <alloca.h> -# endif /* HAVE_ALLOCA_H */ -# endif /* not __GNUC__ */ - -# endif /* not alloca */ - -# define REGEX_ALLOCATE alloca - -/* Assumes a `char *destination' variable. */ -# define REGEX_REALLOCATE(source, osize, nsize) \ - (destination = (char *) alloca (nsize), \ - memcpy (destination, source, osize)) - -/* No need to do anything to free, after alloca. */ -# define REGEX_FREE(arg) ((void)0) /* Do nothing! But inhibit gcc warning. */ - -# endif /* not REGEX_MALLOC */ - -/* Define how to allocate the failure stack. */ - -# if defined REL_ALLOC && defined REGEX_MALLOC - -# define REGEX_ALLOCATE_STACK(size) \ - r_alloc (&failure_stack_ptr, (size)) -# define REGEX_REALLOCATE_STACK(source, osize, nsize) \ - r_re_alloc (&failure_stack_ptr, (nsize)) -# define REGEX_FREE_STACK(ptr) \ - r_alloc_free (&failure_stack_ptr) - -# else /* not using relocating allocator */ - -# ifdef REGEX_MALLOC - -# define REGEX_ALLOCATE_STACK malloc -# define REGEX_REALLOCATE_STACK(source, osize, nsize) realloc (source, nsize) -# define REGEX_FREE_STACK free - -# else /* not REGEX_MALLOC */ - -# define REGEX_ALLOCATE_STACK alloca - -# define REGEX_REALLOCATE_STACK(source, osize, nsize) \ - REGEX_REALLOCATE (source, osize, nsize) -/* No need to explicitly free anything. */ -# define REGEX_FREE_STACK(arg) - -# endif /* not REGEX_MALLOC */ -# endif /* not using relocating allocator */ - - -/* True if `size1' is non-NULL and PTR is pointing anywhere inside - `string1' or just past its end. This works if PTR is NULL, which is - a good thing. */ -# define FIRST_STRING_P(ptr) \ - (size1 && string1 <= (ptr) && (ptr) <= string1 + size1) - -/* (Re)Allocate N items of type T using malloc, or fail. */ -# define TALLOC(n, t) ((t *) malloc ((n) * sizeof (t))) -# define RETALLOC(addr, n, t) ((addr) = (t *) realloc (addr, (n) * sizeof (t))) -# define RETALLOC_IF(addr, n, t) \ - if (addr) RETALLOC((addr), (n), t); else (addr) = TALLOC ((n), t) -# define REGEX_TALLOC(n, t) ((t *) REGEX_ALLOCATE ((n) * sizeof (t))) - -# define BYTEWIDTH 8 /* In bits. */ - -# define STREQ(s1, s2) ((strcmp (s1, s2) == 0)) - -# undef MAX -# undef MIN -# define MAX(a, b) ((a) > (b) ? (a) : (b)) -# define MIN(a, b) ((a) < (b) ? (a) : (b)) - -typedef char boolean; -# define false 0 -# define true 1 - -static reg_errcode_t byte_regex_compile (const char *pattern, size_t size, - reg_syntax_t syntax, - struct re_pattern_buffer *bufp); - -static int byte_re_match_2_internal (struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int pos, - struct re_registers *regs, - int stop); -static int byte_re_search_2 (struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int startpos, int range, - struct re_registers *regs, int stop); -static int byte_re_compile_fastmap (struct re_pattern_buffer *bufp); - -#ifdef MBS_SUPPORT -static reg_errcode_t wcs_regex_compile (const char *pattern, size_t size, - reg_syntax_t syntax, - struct re_pattern_buffer *bufp); - - -static int wcs_re_match_2_internal (struct re_pattern_buffer *bufp, - const char *cstring1, int csize1, - const char *cstring2, int csize2, - int pos, - struct re_registers *regs, - int stop, - wchar_t *string1, int size1, - wchar_t *string2, int size2, - int *mbs_offset1, int *mbs_offset2); -static int wcs_re_search_2 (struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int startpos, int range, - struct re_registers *regs, int stop); -static int wcs_re_compile_fastmap (struct re_pattern_buffer *bufp); -#endif - -/* These are the command codes that appear in compiled regular - expressions. Some opcodes are followed by argument bytes. A - command code can specify any interpretation whatsoever for its - arguments. Zero bytes may appear in the compiled regular expression. */ - -typedef enum -{ - no_op = 0, - - /* Succeed right away--no more backtracking. */ - succeed, - - /* Followed by one byte giving n, then by n literal bytes. */ - exactn, - -# ifdef MBS_SUPPORT - /* Same as exactn, but contains binary data. */ - exactn_bin, -# endif - - /* Matches any (more or less) character. */ - anychar, - - /* Matches any one char belonging to specified set. First - following byte is number of bitmap bytes. Then come bytes - for a bitmap saying which chars are in. Bits in each byte - are ordered low-bit-first. A character is in the set if its - bit is 1. A character too large to have a bit in the map is - automatically not in the set. */ - /* ifdef MBS_SUPPORT, following element is length of character - classes, length of collating symbols, length of equivalence - classes, length of character ranges, and length of characters. - Next, character class element, collating symbols elements, - equivalence class elements, range elements, and character - elements follow. - See regex_compile function. */ - charset, - - /* Same parameters as charset, but match any character that is - not one of those specified. */ - charset_not, - - /* Start remembering the text that is matched, for storing in a - register. Followed by one byte with the register number, in - the range 0 to one less than the pattern buffer's re_nsub - field. Then followed by one byte with the number of groups - inner to this one. (This last has to be part of the - start_memory only because we need it in the on_failure_jump - of re_match_2.) */ - start_memory, - - /* Stop remembering the text that is matched and store it in a - memory register. Followed by one byte with the register - number, in the range 0 to one less than `re_nsub' in the - pattern buffer, and one byte with the number of inner groups, - just like `start_memory'. (We need the number of inner - groups here because we don't have any easy way of finding the - corresponding start_memory when we're at a stop_memory.) */ - stop_memory, - - /* Match a duplicate of something remembered. Followed by one - byte containing the register number. */ - duplicate, - - /* Fail unless at beginning of line. */ - begline, - - /* Fail unless at end of line. */ - endline, - - /* Succeeds if at beginning of buffer (if emacs) or at beginning - of string to be matched (if not). */ - begbuf, - - /* Analogously, for end of buffer/string. */ - endbuf, - - /* Followed by two byte relative address to which to jump. */ - jump, - - /* Same as jump, but marks the end of an alternative. */ - jump_past_alt, - - /* Followed by two-byte relative address of place to resume at - in case of failure. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - on_failure_jump, - - /* Like on_failure_jump, but pushes a placeholder instead of the - current string position when executed. */ - on_failure_keep_string_jump, - - /* Throw away latest failure point and then jump to following - two-byte relative address. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - pop_failure_jump, - - /* Change to pop_failure_jump if know won't have to backtrack to - match; otherwise change to jump. This is used to jump - back to the beginning of a repeat. If what follows this jump - clearly won't match what the repeat does, such that we can be - sure that there is no use backtracking out of repetitions - already matched, then we change it to a pop_failure_jump. - Followed by two-byte address. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - maybe_pop_jump, - - /* Jump to following two-byte address, and push a dummy failure - point. This failure point will be thrown away if an attempt - is made to use it for a failure. A `+' construct makes this - before the first repeat. Also used as an intermediary kind - of jump when compiling an alternative. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - dummy_failure_jump, - - /* Push a dummy failure point and continue. Used at the end of - alternatives. */ - push_dummy_failure, - - /* Followed by two-byte relative address and two-byte number n. - After matching N times, jump to the address upon failure. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - succeed_n, - - /* Followed by two-byte relative address, and two-byte number n. - Jump to the address N times, then fail. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - jump_n, - - /* Set the following two-byte relative address to the - subsequent two-byte number. The address *includes* the two - bytes of number. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - set_number_at, - - wordchar, /* Matches any word-constituent character. */ - notwordchar, /* Matches any char that is not a word-constituent. */ - - wordbeg, /* Succeeds if at word beginning. */ - wordend, /* Succeeds if at word end. */ - - wordbound, /* Succeeds if at a word boundary. */ - notwordbound /* Succeeds if not at a word boundary. */ - -# ifdef emacs - ,before_dot, /* Succeeds if before point. */ - at_dot, /* Succeeds if at point. */ - after_dot, /* Succeeds if after point. */ - - /* Matches any character whose syntax is specified. Followed by - a byte which contains a syntax code, e.g., Sword. */ - syntaxspec, - - /* Matches any character whose syntax is not that specified. */ - notsyntaxspec -# endif /* emacs */ -} re_opcode_t; -#endif /* not INSIDE_RECURSION */ - - -#ifdef BYTE -# define CHAR_T char -# define UCHAR_T unsigned char -# define COMPILED_BUFFER_VAR bufp->buffer -# define OFFSET_ADDRESS_SIZE 2 -# define PREFIX(name) byte_##name -# define ARG_PREFIX(name) name -# define PUT_CHAR(c) putchar (c) -#else -# ifdef WCHAR -# define CHAR_T wchar_t -# define UCHAR_T wchar_t -# define COMPILED_BUFFER_VAR wc_buffer -# define OFFSET_ADDRESS_SIZE 1 /* the size which STORE_NUMBER macro use */ -# define CHAR_CLASS_SIZE ((__alignof__(wctype_t)+sizeof(wctype_t))/sizeof(CHAR_T)+1) -# define PREFIX(name) wcs_##name -# define ARG_PREFIX(name) c##name -/* Should we use wide stream?? */ -# define PUT_CHAR(c) printf ("%C", c); -# define TRUE 1 -# define FALSE 0 -# else -# ifdef MBS_SUPPORT -# define WCHAR -# define INSIDE_RECURSION -# include "regex.c" -# undef INSIDE_RECURSION -# endif -# define BYTE -# define INSIDE_RECURSION -# include "regex.c" -# undef INSIDE_RECURSION -# endif -#endif -#include "unlocked-io.h" - -#ifdef INSIDE_RECURSION -/* Common operations on the compiled pattern. */ - -/* Store NUMBER in two contiguous bytes starting at DESTINATION. */ -/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */ - -# ifdef WCHAR -# define STORE_NUMBER(destination, number) \ - do { \ - *(destination) = (UCHAR_T)(number); \ - } while (0) -# else /* BYTE */ -# define STORE_NUMBER(destination, number) \ - do { \ - (destination)[0] = (number) & 0377; \ - (destination)[1] = (number) >> 8; \ - } while (0) -# endif /* WCHAR */ - -/* Same as STORE_NUMBER, except increment DESTINATION to - the byte after where the number is stored. Therefore, DESTINATION - must be an lvalue. */ -/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */ - -# define STORE_NUMBER_AND_INCR(destination, number) \ - do { \ - STORE_NUMBER (destination, number); \ - (destination) += OFFSET_ADDRESS_SIZE; \ - } while (0) - -/* Put into DESTINATION a number stored in two contiguous bytes starting - at SOURCE. */ -/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */ - -# ifdef WCHAR -# define EXTRACT_NUMBER(destination, source) \ - do { \ - (destination) = *(source); \ - } while (0) -# else /* BYTE */ -# define EXTRACT_NUMBER(destination, source) \ - do { \ - (destination) = *(source) & 0377; \ - (destination) += (signed char) (*((source) + 1)) << 8; \ - } while (0) -# endif - -# ifdef DEBUG -static void -PREFIX(extract_number) (int *dest, UCHAR_T *source) -{ -# ifdef WCHAR - *dest = *source; -# else /* BYTE */ - signed char temp = source[1]; - *dest = *source & 0377; - *dest += temp << 8; -# endif -} - -# ifndef EXTRACT_MACROS /* To debug the macros. */ -# undef EXTRACT_NUMBER -# define EXTRACT_NUMBER(dest, src) PREFIX(extract_number) (&dest, src) -# endif /* not EXTRACT_MACROS */ - -# endif /* DEBUG */ - -/* Same as EXTRACT_NUMBER, except increment SOURCE to after the number. - SOURCE must be an lvalue. */ - -# define EXTRACT_NUMBER_AND_INCR(destination, source) \ - do { \ - EXTRACT_NUMBER (destination, source); \ - (source) += OFFSET_ADDRESS_SIZE; \ - } while (0) - -# ifdef DEBUG -static void -PREFIX(extract_number_and_incr) (int *destination, UCHAR_T **source) -{ - PREFIX(extract_number) (destination, *source); - *source += OFFSET_ADDRESS_SIZE; -} - -# ifndef EXTRACT_MACROS -# undef EXTRACT_NUMBER_AND_INCR -# define EXTRACT_NUMBER_AND_INCR(dest, src) \ - PREFIX(extract_number_and_incr) (&dest, &src) -# endif /* not EXTRACT_MACROS */ - -# endif /* DEBUG */ - - - -/* If DEBUG is defined, Regex prints many voluminous messages about what - it is doing (if the variable `debug' is nonzero). If linked with the - main program in `iregex.c', you can enter patterns and strings - interactively. And if linked with the main program in `main.c' and - the other test files, you can run the already-written tests. */ - -# ifdef DEBUG - -# ifndef DEFINED_ONCE - -/* We use standard I/O for debugging. */ -# include <stdio.h> - -/* It is useful to test things that ``must'' be true when debugging. */ -# include <assert.h> - -static int debug; - -# define DEBUG_STATEMENT(e) e -# define DEBUG_PRINT1(x) if (debug) printf (x) -# define DEBUG_PRINT2(x1, x2) if (debug) printf (x1, x2) -# define DEBUG_PRINT3(x1, x2, x3) if (debug) printf (x1, x2, x3) -# define DEBUG_PRINT4(x1, x2, x3, x4) if (debug) printf (x1, x2, x3, x4) -# endif /* not DEFINED_ONCE */ - -# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \ - if (debug) PREFIX(print_partial_compiled_pattern) (s, e) -# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \ - if (debug) PREFIX(print_double_string) (w, s1, sz1, s2, sz2) - - -/* Print the fastmap in human-readable form. */ - -# ifndef DEFINED_ONCE -void -print_fastmap (char *fastmap) -{ - unsigned was_a_range = 0; - unsigned i = 0; - - while (i < (1 << BYTEWIDTH)) - { - if (fastmap[i++]) - { - was_a_range = 0; - putchar (i - 1); - while (i < (1 << BYTEWIDTH) && fastmap[i]) - { - was_a_range = 1; - i++; - } - if (was_a_range) - { - printf ("-"); - putchar (i - 1); - } - } - } - putchar ('\n'); -} -# endif /* not DEFINED_ONCE */ - - -/* Print a compiled pattern string in human-readable form, starting at - the START pointer into it and ending just before the pointer END. */ - -void -PREFIX(print_partial_compiled_pattern) (UCHAR_T *start, UCHAR_T *end) -{ - int mcnt, mcnt2; - UCHAR_T *p1; - UCHAR_T *p = start; - UCHAR_T *pend = end; - - if (start == NULL) - { - printf ("(null)\n"); - return; - } - - /* Loop over pattern commands. */ - while (p < pend) - { -# ifdef _LIBC - printf ("%td:\t", p - start); -# else - printf ("%ld:\t", (long int) (p - start)); -# endif - - switch ((re_opcode_t) *p++) - { - case no_op: - printf ("/no_op"); - break; - - case exactn: - mcnt = *p++; - printf ("/exactn/%d", mcnt); - do - { - putchar ('/'); - PUT_CHAR (*p++); - } - while (--mcnt); - break; - -# ifdef MBS_SUPPORT - case exactn_bin: - mcnt = *p++; - printf ("/exactn_bin/%d", mcnt); - do - { - printf("/%lx", (long int) *p++); - } - while (--mcnt); - break; -# endif /* MBS_SUPPORT */ - - case start_memory: - mcnt = *p++; - printf ("/start_memory/%d/%ld", mcnt, (long int) *p++); - break; - - case stop_memory: - mcnt = *p++; - printf ("/stop_memory/%d/%ld", mcnt, (long int) *p++); - break; - - case duplicate: - printf ("/duplicate/%ld", (long int) *p++); - break; - - case anychar: - printf ("/anychar"); - break; - - case charset: - case charset_not: - { -# ifdef WCHAR - int i, length; - wchar_t *workp = p; - printf ("/charset [%s", - (re_opcode_t) *(workp - 1) == charset_not ? "^" : ""); - p += 5; - length = *workp++; /* the length of char_classes */ - for (i=0 ; i<length ; i++) - printf("[:%lx:]", (long int) *p++); - length = *workp++; /* the length of collating_symbol */ - for (i=0 ; i<length ;) - { - printf("[."); - while(*p != 0) - PUT_CHAR((i++,*p++)); - i++,p++; - printf(".]"); - } - length = *workp++; /* the length of equivalence_class */ - for (i=0 ; i<length ;) - { - printf("[="); - while(*p != 0) - PUT_CHAR((i++,*p++)); - i++,p++; - printf("=]"); - } - length = *workp++; /* the length of char_range */ - for (i=0 ; i<length ; i++) - { - wchar_t range_start = *p++; - wchar_t range_end = *p++; - printf("%C-%C", range_start, range_end); - } - length = *workp++; /* the length of char */ - for (i=0 ; i<length ; i++) - printf("%C", *p++); - putchar (']'); -# else - register int c, last = -100; - register int in_range = 0; - - printf ("/charset [%s", - (re_opcode_t) *(p - 1) == charset_not ? "^" : ""); - - assert (p + *p < pend); - - for (c = 0; c < 256; c++) - if (c / 8 < *p - && (p[1 + (c/8)] & (1 << (c % 8)))) - { - /* Are we starting a range? */ - if (last + 1 == c && ! in_range) - { - putchar ('-'); - in_range = 1; - } - /* Have we broken a range? */ - else if (last + 1 != c && in_range) - { - putchar (last); - in_range = 0; - } - - if (! in_range) - putchar (c); - - last = c; - } - - if (in_range) - putchar (last); - - putchar (']'); - - p += 1 + *p; -# endif /* WCHAR */ - } - break; - - case begline: - printf ("/begline"); - break; - - case endline: - printf ("/endline"); - break; - - case on_failure_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/on_failure_jump to %td", p + mcnt - start); -# else - printf ("/on_failure_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case on_failure_keep_string_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/on_failure_keep_string_jump to %td", p + mcnt - start); -# else - printf ("/on_failure_keep_string_jump to %ld", - (long int) (p + mcnt - start)); -# endif - break; - - case dummy_failure_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/dummy_failure_jump to %td", p + mcnt - start); -# else - printf ("/dummy_failure_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case push_dummy_failure: - printf ("/push_dummy_failure"); - break; - - case maybe_pop_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/maybe_pop_jump to %td", p + mcnt - start); -# else - printf ("/maybe_pop_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case pop_failure_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/pop_failure_jump to %td", p + mcnt - start); -# else - printf ("/pop_failure_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case jump_past_alt: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/jump_past_alt to %td", p + mcnt - start); -# else - printf ("/jump_past_alt to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/jump to %td", p + mcnt - start); -# else - printf ("/jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case succeed_n: - PREFIX(extract_number_and_incr) (&mcnt, &p); - p1 = p + mcnt; - PREFIX(extract_number_and_incr) (&mcnt2, &p); -# ifdef _LIBC - printf ("/succeed_n to %td, %d times", p1 - start, mcnt2); -# else - printf ("/succeed_n to %ld, %d times", - (long int) (p1 - start), mcnt2); -# endif - break; - - case jump_n: - PREFIX(extract_number_and_incr) (&mcnt, &p); - p1 = p + mcnt; - PREFIX(extract_number_and_incr) (&mcnt2, &p); - printf ("/jump_n to %d, %d times", p1 - start, mcnt2); - break; - - case set_number_at: - PREFIX(extract_number_and_incr) (&mcnt, &p); - p1 = p + mcnt; - PREFIX(extract_number_and_incr) (&mcnt2, &p); -# ifdef _LIBC - printf ("/set_number_at location %td to %d", p1 - start, mcnt2); -# else - printf ("/set_number_at location %ld to %d", - (long int) (p1 - start), mcnt2); -# endif - break; - - case wordbound: - printf ("/wordbound"); - break; - - case notwordbound: - printf ("/notwordbound"); - break; - - case wordbeg: - printf ("/wordbeg"); - break; - - case wordend: - printf ("/wordend"); - break; - -# ifdef emacs - case before_dot: - printf ("/before_dot"); - break; - - case at_dot: - printf ("/at_dot"); - break; - - case after_dot: - printf ("/after_dot"); - break; - - case syntaxspec: - printf ("/syntaxspec"); - mcnt = *p++; - printf ("/%d", mcnt); - break; - - case notsyntaxspec: - printf ("/notsyntaxspec"); - mcnt = *p++; - printf ("/%d", mcnt); - break; -# endif /* emacs */ - - case wordchar: - printf ("/wordchar"); - break; - - case notwordchar: - printf ("/notwordchar"); - break; - - case begbuf: - printf ("/begbuf"); - break; - - case endbuf: - printf ("/endbuf"); - break; - - default: - printf ("?%ld", (long int) *(p-1)); - } - - putchar ('\n'); - } - -# ifdef _LIBC - printf ("%td:\tend of pattern.\n", p - start); -# else - printf ("%ld:\tend of pattern.\n", (long int) (p - start)); -# endif -} - - -void -PREFIX(print_compiled_pattern) (struct re_pattern_buffer *bufp) -{ - UCHAR_T *buffer = (UCHAR_T*) bufp->buffer; - - PREFIX(print_partial_compiled_pattern) (buffer, buffer - + bufp->used / sizeof(UCHAR_T)); - printf ("%ld bytes used/%ld bytes allocated.\n", - bufp->used, bufp->allocated); - - if (bufp->fastmap_accurate && bufp->fastmap) - { - printf ("fastmap: "); - print_fastmap (bufp->fastmap); - } - -# ifdef _LIBC - printf ("re_nsub: %Zd\t", bufp->re_nsub); -# else - printf ("re_nsub: %ld\t", (long int) bufp->re_nsub); -# endif - printf ("regs_alloc: %d\t", bufp->regs_allocated); - printf ("can_be_null: %d\t", bufp->can_be_null); - printf ("newline_anchor: %d\n", bufp->newline_anchor); - printf ("no_sub: %d\t", bufp->no_sub); - printf ("not_bol: %d\t", bufp->not_bol); - printf ("not_eol: %d\t", bufp->not_eol); - printf ("syntax: %lx\n", bufp->syntax); - /* Perhaps we should print the translate table? */ -} - - -void -PREFIX(print_double_string) (const CHAR_T *where, - const CHAR_T *string1, - const CHAR_T *string2, - int size1, - int size2) -{ - int this_char; - - if (where == NULL) - printf ("(null)"); - else - { - int cnt; - - if (FIRST_STRING_P (where)) - { - for (this_char = where - string1; this_char < size1; this_char++) - PUT_CHAR (string1[this_char]); - - where = string2; - } - - cnt = 0; - for (this_char = where - string2; this_char < size2; this_char++) - { - PUT_CHAR (string2[this_char]); - if (++cnt > 100) - { - fputs ("...", stdout); - break; - } - } - } -} - -# ifndef DEFINED_ONCE -void -printchar (c) - int c; -{ - putc (c, stderr); -} -# endif - -# else /* not DEBUG */ - -# ifndef DEFINED_ONCE -# undef assert -# define assert(e) - -# define DEBUG_STATEMENT(e) -# define DEBUG_PRINT1(x) -# define DEBUG_PRINT2(x1, x2) -# define DEBUG_PRINT3(x1, x2, x3) -# define DEBUG_PRINT4(x1, x2, x3, x4) -# endif /* not DEFINED_ONCE */ -# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) -# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) - -# endif /* not DEBUG */ - - - -# ifdef WCHAR -/* This convert a multibyte string to a wide character string. - And write their correspondances to offset_buffer(see below) - and write whether each wchar_t is binary data to is_binary. - This assume invalid multibyte sequences as binary data. - We assume offset_buffer and is_binary is already allocated - enough space. */ - -static size_t -convert_mbs_to_wcs (CHAR_T *dest, - const unsigned char* src, - - /* The length of multibyte string. */ - size_t len, - - /* Correspondences between src(char string) and - dest(wchar_t string) for optimization. E.g.: - src = "xxxyzz" - dest = {'X', 'Y', 'Z'} - (each "xxx", "y" and "zz" represent one - multibyte character corresponding to 'X', - 'Y' and 'Z'.) - offset_buffer = {0, 0+3("xxx"), 0+3+1("y"), - 0+3+1+2("zz")} - = {0, 3, 4, 6} */ - int *offset_buffer, - - char *is_binary) -{ - wchar_t *pdest = dest; - const unsigned char *psrc = src; - size_t wc_count = 0; - - mbstate_t mbs; - int i, consumed; - size_t mb_remain = len; - size_t mb_count = 0; - - /* Initialize the conversion state. */ - memset (&mbs, 0, sizeof (mbstate_t)); - - offset_buffer[0] = 0; - for( ; mb_remain > 0 ; ++wc_count, ++pdest, mb_remain -= consumed, - psrc += consumed) - { - consumed = mbrtowc (pdest, psrc, mb_remain, &mbs); - - if (consumed <= 0) - /* failed to convert. maybe src contains binary data. - So we consume 1 byte manualy. */ - { - *pdest = *psrc; - consumed = 1; - is_binary[wc_count] = TRUE; - } - else - is_binary[wc_count] = FALSE; - /* In sjis encoding, we use yen sign as escape character in - place of reverse solidus. So we convert 0x5c(yen sign in - sjis) to not 0xa5(yen sign in UCS2) but 0x5c(reverse - solidus in UCS2). */ - if (consumed == 1 && (int) *psrc == 0x5c && (int) *pdest == 0xa5) - *pdest = (wchar_t) *psrc; - - offset_buffer[wc_count + 1] = mb_count += consumed; - } - - /* Fill remain of the buffer with sentinel. */ - for (i = wc_count + 1 ; i <= len ; i++) - offset_buffer[i] = mb_count + 1; - - return wc_count; -} - -# endif /* WCHAR */ - -#else /* not INSIDE_RECURSION */ - -/* Set by `re_set_syntax' to the current regexp syntax to recognize. Can - also be assigned to arbitrarily: each pattern buffer stores its own - syntax, so it can be changed between regex compilations. */ -/* This has no initializer because initialized variables in Emacs - become read-only after dumping. */ -reg_syntax_t re_syntax_options; - - -/* Specify the precise syntax of regexps for compilation. This provides - for compatibility for various utilities which historically have - different, incompatible syntaxes. - - The argument SYNTAX is a bit mask comprised of the various bits - defined in regex.h. We return the old syntax. */ - -reg_syntax_t -re_set_syntax (reg_syntax_t syntax) -{ - reg_syntax_t ret = re_syntax_options; - - re_syntax_options = syntax; -# ifdef DEBUG - if (syntax & RE_DEBUG) - debug = 1; - else if (debug) /* was on but now is not */ - debug = 0; -# endif /* DEBUG */ - return ret; -} -# ifdef _LIBC -weak_alias (__re_set_syntax, re_set_syntax) -# endif - -/* This table gives an error message for each of the error codes listed - in regex.h. Obviously the order here has to be same as there. - POSIX doesn't require that we do anything for REG_NOERROR, - but why not be nice? */ - -static const char re_error_msgid[] = - { -# define REG_NOERROR_IDX 0 - gettext_noop ("Success") /* REG_NOERROR */ - "\0" -# define REG_NOMATCH_IDX (REG_NOERROR_IDX + sizeof "Success") - gettext_noop ("No match") /* REG_NOMATCH */ - "\0" -# define REG_BADPAT_IDX (REG_NOMATCH_IDX + sizeof "No match") - gettext_noop ("Invalid regular expression") /* REG_BADPAT */ - "\0" -# define REG_ECOLLATE_IDX (REG_BADPAT_IDX + sizeof "Invalid regular expression") - gettext_noop ("Invalid collation character") /* REG_ECOLLATE */ - "\0" -# define REG_ECTYPE_IDX (REG_ECOLLATE_IDX + sizeof "Invalid collation character") - gettext_noop ("Invalid character class name") /* REG_ECTYPE */ - "\0" -# define REG_EESCAPE_IDX (REG_ECTYPE_IDX + sizeof "Invalid character class name") - gettext_noop ("Trailing backslash") /* REG_EESCAPE */ - "\0" -# define REG_ESUBREG_IDX (REG_EESCAPE_IDX + sizeof "Trailing backslash") - gettext_noop ("Invalid back reference") /* REG_ESUBREG */ - "\0" -# define REG_EBRACK_IDX (REG_ESUBREG_IDX + sizeof "Invalid back reference") - gettext_noop ("Unmatched [ or [^") /* REG_EBRACK */ - "\0" -# define REG_EPAREN_IDX (REG_EBRACK_IDX + sizeof "Unmatched [ or [^") - gettext_noop ("Unmatched ( or \\(") /* REG_EPAREN */ - "\0" -# define REG_EBRACE_IDX (REG_EPAREN_IDX + sizeof "Unmatched ( or \\(") - gettext_noop ("Unmatched \\{") /* REG_EBRACE */ - "\0" -# define REG_BADBR_IDX (REG_EBRACE_IDX + sizeof "Unmatched \\{") - gettext_noop ("Invalid content of \\{\\}") /* REG_BADBR */ - "\0" -# define REG_ERANGE_IDX (REG_BADBR_IDX + sizeof "Invalid content of \\{\\}") - gettext_noop ("Invalid range end") /* REG_ERANGE */ - "\0" -# define REG_ESPACE_IDX (REG_ERANGE_IDX + sizeof "Invalid range end") - gettext_noop ("Memory exhausted") /* REG_ESPACE */ - "\0" -# define REG_BADRPT_IDX (REG_ESPACE_IDX + sizeof "Memory exhausted") - gettext_noop ("Invalid preceding regular expression") /* REG_BADRPT */ - "\0" -# define REG_EEND_IDX (REG_BADRPT_IDX + sizeof "Invalid preceding regular expression") - gettext_noop ("Premature end of regular expression") /* REG_EEND */ - "\0" -# define REG_ESIZE_IDX (REG_EEND_IDX + sizeof "Premature end of regular expression") - gettext_noop ("Regular expression too big") /* REG_ESIZE */ - "\0" -# define REG_ERPAREN_IDX (REG_ESIZE_IDX + sizeof "Regular expression too big") - gettext_noop ("Unmatched ) or \\)") /* REG_ERPAREN */ - }; - -static const size_t re_error_msgid_idx[] = - { - REG_NOERROR_IDX, - REG_NOMATCH_IDX, - REG_BADPAT_IDX, - REG_ECOLLATE_IDX, - REG_ECTYPE_IDX, - REG_EESCAPE_IDX, - REG_ESUBREG_IDX, - REG_EBRACK_IDX, - REG_EPAREN_IDX, - REG_EBRACE_IDX, - REG_BADBR_IDX, - REG_ERANGE_IDX, - REG_ESPACE_IDX, - REG_BADRPT_IDX, - REG_EEND_IDX, - REG_ESIZE_IDX, - REG_ERPAREN_IDX - }; - -#endif /* INSIDE_RECURSION */ - -#ifndef DEFINED_ONCE -/* Avoiding alloca during matching, to placate r_alloc. */ - -/* Define MATCH_MAY_ALLOCATE unless we need to make sure that the - searching and matching functions should not call alloca. On some - systems, alloca is implemented in terms of malloc, and if we're - using the relocating allocator routines, then malloc could cause a - relocation, which might (if the strings being searched are in the - ralloc heap) shift the data out from underneath the regexp - routines. - - Here's another reason to avoid allocation: Emacs - processes input from X in a signal handler; processing X input may - call malloc; if input arrives while a matching routine is calling - malloc, then we're scrod. But Emacs can't just block input while - calling matching routines; then we don't notice interrupts when - they come in. So, Emacs blocks input around all regexp calls - except the matching calls, which it leaves unprotected, in the - faith that they will not malloc. */ - -/* Normally, this is fine. */ -# define MATCH_MAY_ALLOCATE - -/* When using GNU C, we are not REALLY using the C alloca, no matter - what config.h may say. So don't take precautions for it. */ -# ifdef __GNUC__ -# undef C_ALLOCA -# endif - -/* The match routines may not allocate if (1) they would do it with malloc - and (2) it's not safe for them to use malloc. - Note that if REL_ALLOC is defined, matching would not use malloc for the - failure stack, but we would still use it for the register vectors; - so REL_ALLOC should not affect this. */ -# if (defined C_ALLOCA || defined REGEX_MALLOC) && defined emacs -# undef MATCH_MAY_ALLOCATE -# endif -#endif /* not DEFINED_ONCE */ - -#ifdef INSIDE_RECURSION -/* Failure stack declarations and macros; both re_compile_fastmap and - re_match_2 use a failure stack. These have to be macros because of - REGEX_ALLOCATE_STACK. */ - - -/* Number of failure points for which to initially allocate space - when matching. If this number is exceeded, we allocate more - space, so it is not a hard limit. */ -# ifndef INIT_FAILURE_ALLOC -# define INIT_FAILURE_ALLOC 5 -# endif - -/* Roughly the maximum number of failure points on the stack. Would be - exactly that if always used MAX_FAILURE_ITEMS items each time we failed. - This is a variable only so users of regex can assign to it; we never - change it ourselves. */ - -# ifdef INT_IS_16BIT - -# ifndef DEFINED_ONCE -# if defined MATCH_MAY_ALLOCATE -/* 4400 was enough to cause a crash on Alpha OSF/1, - whose default stack limit is 2mb. */ -long int re_max_failures = 4000; -# else -long int re_max_failures = 2000; -# endif -# endif - -union PREFIX(fail_stack_elt) -{ - UCHAR_T *pointer; - long int integer; -}; - -typedef union PREFIX(fail_stack_elt) PREFIX(fail_stack_elt_t); - -typedef struct -{ - PREFIX(fail_stack_elt_t) *stack; - unsigned long int size; - unsigned long int avail; /* Offset of next open position. */ -} PREFIX(fail_stack_type); - -# else /* not INT_IS_16BIT */ - -# ifndef DEFINED_ONCE -# if defined MATCH_MAY_ALLOCATE -/* 4400 was enough to cause a crash on Alpha OSF/1, - whose default stack limit is 2mb. */ -int re_max_failures = 4000; -# else -int re_max_failures = 2000; -# endif -# endif - -union PREFIX(fail_stack_elt) -{ - UCHAR_T *pointer; - int integer; -}; - -typedef union PREFIX(fail_stack_elt) PREFIX(fail_stack_elt_t); - -typedef struct -{ - PREFIX(fail_stack_elt_t) *stack; - unsigned size; - unsigned avail; /* Offset of next open position. */ -} PREFIX(fail_stack_type); - -# endif /* INT_IS_16BIT */ - -# ifndef DEFINED_ONCE -# define FAIL_STACK_EMPTY() (fail_stack.avail == 0) -# define FAIL_STACK_PTR_EMPTY() (fail_stack_ptr->avail == 0) -# define FAIL_STACK_FULL() (fail_stack.avail == fail_stack.size) -# endif - - -/* Define macros to initialize and free the failure stack. - Do `return -2' if the alloc fails. */ - -# ifdef MATCH_MAY_ALLOCATE -# define INIT_FAIL_STACK() \ - do { \ - fail_stack.stack = (PREFIX(fail_stack_elt_t) *) \ - REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * sizeof (PREFIX(fail_stack_elt_t))); \ - \ - if (fail_stack.stack == NULL) \ - return -2; \ - \ - fail_stack.size = INIT_FAILURE_ALLOC; \ - fail_stack.avail = 0; \ - } while (0) - -# define RESET_FAIL_STACK() REGEX_FREE_STACK (fail_stack.stack) -# else -# define INIT_FAIL_STACK() \ - do { \ - fail_stack.avail = 0; \ - } while (0) - -# define RESET_FAIL_STACK() -# endif - - -/* Double the size of FAIL_STACK, up to approximately `re_max_failures' items. - - Return 1 if succeeds, and 0 if either ran out of memory - allocating space for it or it was already too large. - - REGEX_REALLOCATE_STACK requires `destination' be declared. */ - -# define DOUBLE_FAIL_STACK(fail_stack) \ - ((fail_stack).size > (unsigned) (re_max_failures * MAX_FAILURE_ITEMS) \ - ? 0 \ - : ((fail_stack).stack = (PREFIX(fail_stack_elt_t) *) \ - REGEX_REALLOCATE_STACK ((fail_stack).stack, \ - (fail_stack).size * sizeof (PREFIX(fail_stack_elt_t)), \ - ((fail_stack).size << 1) * sizeof (PREFIX(fail_stack_elt_t))),\ - \ - (fail_stack).stack == NULL \ - ? 0 \ - : ((fail_stack).size <<= 1, \ - 1))) - - -/* Push pointer POINTER on FAIL_STACK. - Return 1 if was able to do so and 0 if ran out of memory allocating - space to do so. */ -# define PUSH_PATTERN_OP(POINTER, FAIL_STACK) \ - ((FAIL_STACK_FULL () \ - && !DOUBLE_FAIL_STACK (FAIL_STACK)) \ - ? 0 \ - : ((FAIL_STACK).stack[(FAIL_STACK).avail++].pointer = POINTER, \ - 1)) - -/* Push a pointer value onto the failure stack. - Assumes the variable `fail_stack'. Probably should only - be called from within `PUSH_FAILURE_POINT'. */ -# define PUSH_FAILURE_POINTER(item) \ - fail_stack.stack[fail_stack.avail++].pointer = (UCHAR_T *) (item) - -/* This pushes an integer-valued item onto the failure stack. - Assumes the variable `fail_stack'. Probably should only - be called from within `PUSH_FAILURE_POINT'. */ -# define PUSH_FAILURE_INT(item) \ - fail_stack.stack[fail_stack.avail++].integer = (item) - -/* Push a fail_stack_elt_t value onto the failure stack. - Assumes the variable `fail_stack'. Probably should only - be called from within `PUSH_FAILURE_POINT'. */ -# define PUSH_FAILURE_ELT(item) \ - fail_stack.stack[fail_stack.avail++] = (item) - -/* These three POP... operations complement the three PUSH... operations. - All assume that `fail_stack' is nonempty. */ -# define POP_FAILURE_POINTER() fail_stack.stack[--fail_stack.avail].pointer -# define POP_FAILURE_INT() fail_stack.stack[--fail_stack.avail].integer -# define POP_FAILURE_ELT() fail_stack.stack[--fail_stack.avail] - -/* Used to omit pushing failure point id's when we're not debugging. */ -# ifdef DEBUG -# define DEBUG_PUSH PUSH_FAILURE_INT -# define DEBUG_POP(item_addr) *(item_addr) = POP_FAILURE_INT () -# else -# define DEBUG_PUSH(item) -# define DEBUG_POP(item_addr) -# endif - - -/* Push the information about the state we will need - if we ever fail back to it. - - Requires variables fail_stack, regstart, regend, reg_info, and - num_regs_pushed be declared. DOUBLE_FAIL_STACK requires `destination' - be declared. - - Does `return FAILURE_CODE' if runs out of memory. */ - -# define PUSH_FAILURE_POINT(pattern_place, string_place, failure_code) \ - do { \ - char *destination; \ - /* Must be int, so when we don't save any registers, the arithmetic \ - of 0 + -1 isn't done as unsigned. */ \ - /* Can't be int, since there is not a shred of a guarantee that int \ - is wide enough to hold a value of something to which pointer can \ - be assigned */ \ - active_reg_t this_reg; \ - \ - DEBUG_STATEMENT (failure_id++); \ - DEBUG_STATEMENT (nfailure_points_pushed++); \ - DEBUG_PRINT2 ("\nPUSH_FAILURE_POINT #%u:\n", failure_id); \ - DEBUG_PRINT2 (" Before push, next avail: %d\n", (fail_stack).avail);\ - DEBUG_PRINT2 (" size: %d\n", (fail_stack).size);\ - \ - DEBUG_PRINT2 (" slots needed: %ld\n", NUM_FAILURE_ITEMS); \ - DEBUG_PRINT2 (" available: %d\n", REMAINING_AVAIL_SLOTS); \ - \ - /* Ensure we have enough space allocated for what we will push. */ \ - while (REMAINING_AVAIL_SLOTS < NUM_FAILURE_ITEMS) \ - { \ - if (!DOUBLE_FAIL_STACK (fail_stack)) \ - return failure_code; \ - \ - DEBUG_PRINT2 ("\n Doubled stack; size now: %d\n", \ - (fail_stack).size); \ - DEBUG_PRINT2 (" slots available: %d\n", REMAINING_AVAIL_SLOTS);\ - } \ - \ - /* Push the info, starting with the registers. */ \ - DEBUG_PRINT1 ("\n"); \ - \ - if (1) \ - for (this_reg = lowest_active_reg; this_reg <= highest_active_reg; \ - this_reg++) \ - { \ - DEBUG_PRINT2 (" Pushing reg: %lu\n", this_reg); \ - DEBUG_STATEMENT (num_regs_pushed++); \ - \ - DEBUG_PRINT2 (" start: %p\n", regstart[this_reg]); \ - PUSH_FAILURE_POINTER (regstart[this_reg]); \ - \ - DEBUG_PRINT2 (" end: %p\n", regend[this_reg]); \ - PUSH_FAILURE_POINTER (regend[this_reg]); \ - \ - DEBUG_PRINT2 (" info: %p\n ", \ - reg_info[this_reg].word.pointer); \ - DEBUG_PRINT2 (" match_null=%d", \ - REG_MATCH_NULL_STRING_P (reg_info[this_reg])); \ - DEBUG_PRINT2 (" active=%d", IS_ACTIVE (reg_info[this_reg])); \ - DEBUG_PRINT2 (" matched_something=%d", \ - MATCHED_SOMETHING (reg_info[this_reg])); \ - DEBUG_PRINT2 (" ever_matched=%d", \ - EVER_MATCHED_SOMETHING (reg_info[this_reg])); \ - DEBUG_PRINT1 ("\n"); \ - PUSH_FAILURE_ELT (reg_info[this_reg].word); \ - } \ - \ - DEBUG_PRINT2 (" Pushing low active reg: %ld\n", lowest_active_reg);\ - PUSH_FAILURE_INT (lowest_active_reg); \ - \ - DEBUG_PRINT2 (" Pushing high active reg: %ld\n", highest_active_reg);\ - PUSH_FAILURE_INT (highest_active_reg); \ - \ - DEBUG_PRINT2 (" Pushing pattern %p:\n", pattern_place); \ - DEBUG_PRINT_COMPILED_PATTERN (bufp, pattern_place, pend); \ - PUSH_FAILURE_POINTER (pattern_place); \ - \ - DEBUG_PRINT2 (" Pushing string %p: `", string_place); \ - DEBUG_PRINT_DOUBLE_STRING (string_place, string1, size1, string2, \ - size2); \ - DEBUG_PRINT1 ("'\n"); \ - PUSH_FAILURE_POINTER (string_place); \ - \ - DEBUG_PRINT2 (" Pushing failure id: %u\n", failure_id); \ - DEBUG_PUSH (failure_id); \ - } while (0) - -# ifndef DEFINED_ONCE -/* This is the number of items that are pushed and popped on the stack - for each register. */ -# define NUM_REG_ITEMS 3 - -/* Individual items aside from the registers. */ -# ifdef DEBUG -# define NUM_NONREG_ITEMS 5 /* Includes failure point id. */ -# else -# define NUM_NONREG_ITEMS 4 -# endif - -/* We push at most this many items on the stack. */ -/* We used to use (num_regs - 1), which is the number of registers - this regexp will save; but that was changed to 5 - to avoid stack overflow for a regexp with lots of parens. */ -# define MAX_FAILURE_ITEMS (5 * NUM_REG_ITEMS + NUM_NONREG_ITEMS) - -/* We actually push this many items. */ -# define NUM_FAILURE_ITEMS \ - (((0 \ - ? 0 : highest_active_reg - lowest_active_reg + 1) \ - * NUM_REG_ITEMS) \ - + NUM_NONREG_ITEMS) - -/* How many items can still be added to the stack without overflowing it. */ -# define REMAINING_AVAIL_SLOTS ((fail_stack).size - (fail_stack).avail) -# endif /* not DEFINED_ONCE */ - - -/* Pops what PUSH_FAIL_STACK pushes. - - We restore into the parameters, all of which should be lvalues: - STR -- the saved data position. - PAT -- the saved pattern position. - LOW_REG, HIGH_REG -- the highest and lowest active registers. - REGSTART, REGEND -- arrays of string positions. - REG_INFO -- array of information about each subexpression. - - Also assumes the variables `fail_stack' and (if debugging), `bufp', - `pend', `string1', `size1', `string2', and `size2'. */ -# define POP_FAILURE_POINT(str, pat, low_reg, high_reg, regstart, regend, reg_info)\ -{ \ - DEBUG_STATEMENT (unsigned failure_id;) \ - active_reg_t this_reg; \ - const UCHAR_T *string_temp; \ - \ - assert (!FAIL_STACK_EMPTY ()); \ - \ - /* Remove failure points and point to how many regs pushed. */ \ - DEBUG_PRINT1 ("POP_FAILURE_POINT:\n"); \ - DEBUG_PRINT2 (" Before pop, next avail: %d\n", fail_stack.avail); \ - DEBUG_PRINT2 (" size: %d\n", fail_stack.size); \ - \ - assert (fail_stack.avail >= NUM_NONREG_ITEMS); \ - \ - DEBUG_POP (&failure_id); \ - DEBUG_PRINT2 (" Popping failure id: %u\n", failure_id); \ - \ - /* If the saved string location is NULL, it came from an \ - on_failure_keep_string_jump opcode, and we want to throw away the \ - saved NULL, thus retaining our current position in the string. */ \ - string_temp = POP_FAILURE_POINTER (); \ - if (string_temp != NULL) \ - str = (const CHAR_T *) string_temp; \ - \ - DEBUG_PRINT2 (" Popping string %p: `", str); \ - DEBUG_PRINT_DOUBLE_STRING (str, string1, size1, string2, size2); \ - DEBUG_PRINT1 ("'\n"); \ - \ - pat = (UCHAR_T *) POP_FAILURE_POINTER (); \ - DEBUG_PRINT2 (" Popping pattern %p:\n", pat); \ - DEBUG_PRINT_COMPILED_PATTERN (bufp, pat, pend); \ - \ - /* Restore register info. */ \ - high_reg = (active_reg_t) POP_FAILURE_INT (); \ - DEBUG_PRINT2 (" Popping high active reg: %ld\n", high_reg); \ - \ - low_reg = (active_reg_t) POP_FAILURE_INT (); \ - DEBUG_PRINT2 (" Popping low active reg: %ld\n", low_reg); \ - \ - if (1) \ - for (this_reg = high_reg; this_reg >= low_reg; this_reg--) \ - { \ - DEBUG_PRINT2 (" Popping reg: %ld\n", this_reg); \ - \ - reg_info[this_reg].word = POP_FAILURE_ELT (); \ - DEBUG_PRINT2 (" info: %p\n", \ - reg_info[this_reg].word.pointer); \ - \ - regend[this_reg] = (const CHAR_T *) POP_FAILURE_POINTER (); \ - DEBUG_PRINT2 (" end: %p\n", regend[this_reg]); \ - \ - regstart[this_reg] = (const CHAR_T *) POP_FAILURE_POINTER (); \ - DEBUG_PRINT2 (" start: %p\n", regstart[this_reg]); \ - } \ - else \ - { \ - for (this_reg = highest_active_reg; this_reg > high_reg; this_reg--) \ - { \ - reg_info[this_reg].word.integer = 0; \ - regend[this_reg] = 0; \ - regstart[this_reg] = 0; \ - } \ - highest_active_reg = high_reg; \ - } \ - \ - set_regs_matched_done = 0; \ - DEBUG_STATEMENT (nfailure_points_popped++); \ -} /* POP_FAILURE_POINT */ - -/* Structure for per-register (a.k.a. per-group) information. - Other register information, such as the - starting and ending positions (which are addresses), and the list of - inner groups (which is a bits list) are maintained in separate - variables. - - We are making a (strictly speaking) nonportable assumption here: that - the compiler will pack our bit fields into something that fits into - the type of `word', i.e., is something that fits into one item on the - failure stack. */ - - -/* Declarations and macros for re_match_2. */ - -typedef union -{ - PREFIX(fail_stack_elt_t) word; - struct - { - /* This field is one if this group can match the empty string, - zero if not. If not yet determined, `MATCH_NULL_UNSET_VALUE'. */ -# define MATCH_NULL_UNSET_VALUE 3 - unsigned match_null_string_p : 2; - unsigned is_active : 1; - unsigned matched_something : 1; - unsigned ever_matched_something : 1; - } bits; -} PREFIX(register_info_type); - -# ifndef DEFINED_ONCE -# define REG_MATCH_NULL_STRING_P(R) ((R).bits.match_null_string_p) -# define IS_ACTIVE(R) ((R).bits.is_active) -# define MATCHED_SOMETHING(R) ((R).bits.matched_something) -# define EVER_MATCHED_SOMETHING(R) ((R).bits.ever_matched_something) - - -/* Call this when have matched a real character; it sets `matched' flags - for the subexpressions which we are currently inside. Also records - that those subexprs have matched. */ -# define SET_REGS_MATCHED() \ - do \ - { \ - if (!set_regs_matched_done) \ - { \ - active_reg_t r; \ - set_regs_matched_done = 1; \ - for (r = lowest_active_reg; r <= highest_active_reg; r++) \ - { \ - MATCHED_SOMETHING (reg_info[r]) \ - = EVER_MATCHED_SOMETHING (reg_info[r]) \ - = 1; \ - } \ - } \ - } \ - while (0) -# endif /* not DEFINED_ONCE */ - -/* Registers are set to a sentinel when they haven't yet matched. */ -static CHAR_T PREFIX(reg_unset_dummy); -# define REG_UNSET_VALUE (&PREFIX(reg_unset_dummy)) -# define REG_UNSET(e) ((e) == REG_UNSET_VALUE) - -/* Subroutine declarations and macros for regex_compile. */ -static void PREFIX(store_op1) (re_opcode_t op, UCHAR_T *loc, int arg); -static void PREFIX(store_op2) (re_opcode_t op, UCHAR_T *loc, - int arg1, int arg2); -static void PREFIX(insert_op1) (re_opcode_t op, UCHAR_T *loc, - int arg, UCHAR_T *end); -static void PREFIX(insert_op2) (re_opcode_t op, UCHAR_T *loc, - int arg1, int arg2, UCHAR_T *end); -static boolean PREFIX(at_begline_loc_p) (const CHAR_T *pattern, - const CHAR_T *p, - reg_syntax_t syntax); -static boolean PREFIX(at_endline_loc_p) (const CHAR_T *p, - const CHAR_T *pend, - reg_syntax_t syntax); -# ifdef WCHAR -static reg_errcode_t wcs_compile_range (CHAR_T range_start, - const CHAR_T **p_ptr, - const CHAR_T *pend, - char *translate, - reg_syntax_t syntax, - UCHAR_T *b, - CHAR_T *char_set); -static void insert_space (int num, CHAR_T *loc, CHAR_T *end); -# else /* BYTE */ -static reg_errcode_t byte_compile_range (unsigned int range_start, - const char **p_ptr, - const char *pend, - char *translate, - reg_syntax_t syntax, - unsigned char *b); -# endif /* WCHAR */ - -/* Fetch the next character in the uncompiled pattern---translating it - if necessary. Also cast from a signed character in the constant - string passed to us by the user to an unsigned char that we can use - as an array index (in, e.g., `translate'). */ -/* ifdef MBS_SUPPORT, we translate only if character <= 0xff, - because it is impossible to allocate 4GB array for some encodings - which have 4 byte character_set like UCS4. */ -# ifndef PATFETCH -# ifdef WCHAR -# define PATFETCH(c) \ - do {if (p == pend) return REG_EEND; \ - c = (UCHAR_T) *p++; \ - if (translate && (c <= 0xff)) c = (UCHAR_T) translate[c]; \ - } while (0) -# else /* BYTE */ -# define PATFETCH(c) \ - do {if (p == pend) return REG_EEND; \ - c = (unsigned char) *p++; \ - if (translate) c = (unsigned char) translate[c]; \ - } while (0) -# endif /* WCHAR */ -# endif - -/* Fetch the next character in the uncompiled pattern, with no - translation. */ -# define PATFETCH_RAW(c) \ - do {if (p == pend) return REG_EEND; \ - c = (UCHAR_T) *p++; \ - } while (0) - -/* Go backwards one character in the pattern. */ -# define PATUNFETCH p-- - - -/* If `translate' is non-null, return translate[D], else just D. We - cast the subscript to translate because some data is declared as - `char *', to avoid warnings when a string constant is passed. But - when we use a character as a subscript we must make it unsigned. */ -/* ifdef MBS_SUPPORT, we translate only if character <= 0xff, - because it is impossible to allocate 4GB array for some encodings - which have 4 byte character_set like UCS4. */ - -# ifndef TRANSLATE -# ifdef WCHAR -# define TRANSLATE(d) \ - ((translate && ((UCHAR_T) (d)) <= 0xff) \ - ? (char) translate[(unsigned char) (d)] : (d)) -# else /* BYTE */ -# define TRANSLATE(d) \ - (translate ? (char) translate[(unsigned char) (d)] : (d)) -# endif /* WCHAR */ -# endif - - -/* Macros for outputting the compiled pattern into `buffer'. */ - -/* If the buffer isn't allocated when it comes in, use this. */ -# define INIT_BUF_SIZE (32 * sizeof(UCHAR_T)) - -/* Make sure we have at least N more bytes of space in buffer. */ -# ifdef WCHAR -# define GET_BUFFER_SPACE(n) \ - while (((unsigned long)b - (unsigned long)COMPILED_BUFFER_VAR \ - + (n)*sizeof(CHAR_T)) > bufp->allocated) \ - EXTEND_BUFFER () -# else /* BYTE */ -# define GET_BUFFER_SPACE(n) \ - while ((unsigned long) (b - bufp->buffer + (n)) > bufp->allocated) \ - EXTEND_BUFFER () -# endif /* WCHAR */ - -/* Make sure we have one more byte of buffer space and then add C to it. */ -# define BUF_PUSH(c) \ - do { \ - GET_BUFFER_SPACE (1); \ - *b++ = (UCHAR_T) (c); \ - } while (0) - - -/* Ensure we have two more bytes of buffer space and then append C1 and C2. */ -# define BUF_PUSH_2(c1, c2) \ - do { \ - GET_BUFFER_SPACE (2); \ - *b++ = (UCHAR_T) (c1); \ - *b++ = (UCHAR_T) (c2); \ - } while (0) - - -/* As with BUF_PUSH_2, except for three bytes. */ -# define BUF_PUSH_3(c1, c2, c3) \ - do { \ - GET_BUFFER_SPACE (3); \ - *b++ = (UCHAR_T) (c1); \ - *b++ = (UCHAR_T) (c2); \ - *b++ = (UCHAR_T) (c3); \ - } while (0) - -/* Store a jump with opcode OP at LOC to location TO. We store a - relative address offset by the three bytes the jump itself occupies. */ -# define STORE_JUMP(op, loc, to) \ - PREFIX(store_op1) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE))) - -/* Likewise, for a two-argument jump. */ -# define STORE_JUMP2(op, loc, to, arg) \ - PREFIX(store_op2) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), arg) - -/* Like `STORE_JUMP', but for inserting. Assume `b' is the buffer end. */ -# define INSERT_JUMP(op, loc, to) \ - PREFIX(insert_op1) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), b) - -/* Like `STORE_JUMP2', but for inserting. Assume `b' is the buffer end. */ -# define INSERT_JUMP2(op, loc, to, arg) \ - PREFIX(insert_op2) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)),\ - arg, b) - -/* This is not an arbitrary limit: the arguments which represent offsets - into the pattern are two bytes long. So if 2^16 bytes turns out to - be too small, many things would have to change. */ -/* Any other compiler which, like MSC, has allocation limit below 2^16 - bytes will have to use approach similar to what was done below for - MSC and drop MAX_BUF_SIZE a bit. Otherwise you may end up - reallocating to 0 bytes. Such thing is not going to work too well. - You have been warned!! */ -# ifndef DEFINED_ONCE -# if defined _MSC_VER && !defined WIN32 -/* Microsoft C 16-bit versions limit malloc to approx 65512 bytes. - The REALLOC define eliminates a flurry of conversion warnings, - but is not required. */ -# define MAX_BUF_SIZE 65500L -# define REALLOC(p,s) realloc ((p), (size_t) (s)) -# else -# define MAX_BUF_SIZE (1L << 16) -# define REALLOC(p,s) realloc ((p), (s)) -# endif - -/* Extend the buffer by twice its current size via realloc and - reset the pointers that pointed into the old block to point to the - correct places in the new one. If extending the buffer results in it - being larger than MAX_BUF_SIZE, then flag memory exhausted. */ -# if __BOUNDED_POINTERS__ -# define SET_HIGH_BOUND(P) (__ptrhigh (P) = __ptrlow (P) + bufp->allocated) -# define MOVE_BUFFER_POINTER(P) \ - (__ptrlow (P) += incr, SET_HIGH_BOUND (P), __ptrvalue (P) += incr) -# define ELSE_EXTEND_BUFFER_HIGH_BOUND \ - else \ - { \ - SET_HIGH_BOUND (b); \ - SET_HIGH_BOUND (begalt); \ - if (fixup_alt_jump) \ - SET_HIGH_BOUND (fixup_alt_jump); \ - if (laststart) \ - SET_HIGH_BOUND (laststart); \ - if (pending_exact) \ - SET_HIGH_BOUND (pending_exact); \ - } -# else -# define MOVE_BUFFER_POINTER(P) (P) += incr -# define ELSE_EXTEND_BUFFER_HIGH_BOUND -# endif -# endif /* not DEFINED_ONCE */ - -# ifdef WCHAR -# define EXTEND_BUFFER() \ - do { \ - UCHAR_T *old_buffer = COMPILED_BUFFER_VAR; \ - int wchar_count; \ - if (bufp->allocated + sizeof(UCHAR_T) > MAX_BUF_SIZE) \ - return REG_ESIZE; \ - bufp->allocated <<= 1; \ - if (bufp->allocated > MAX_BUF_SIZE) \ - bufp->allocated = MAX_BUF_SIZE; \ - /* How many characters the new buffer can have? */ \ - wchar_count = bufp->allocated / sizeof(UCHAR_T); \ - if (wchar_count == 0) wchar_count = 1; \ - /* Truncate the buffer to CHAR_T align. */ \ - bufp->allocated = wchar_count * sizeof(UCHAR_T); \ - RETALLOC (COMPILED_BUFFER_VAR, wchar_count, UCHAR_T); \ - bufp->buffer = (char*)COMPILED_BUFFER_VAR; \ - if (COMPILED_BUFFER_VAR == NULL) \ - return REG_ESPACE; \ - /* If the buffer moved, move all the pointers into it. */ \ - if (old_buffer != COMPILED_BUFFER_VAR) \ - { \ - int incr = COMPILED_BUFFER_VAR - old_buffer; \ - MOVE_BUFFER_POINTER (b); \ - MOVE_BUFFER_POINTER (begalt); \ - if (fixup_alt_jump) \ - MOVE_BUFFER_POINTER (fixup_alt_jump); \ - if (laststart) \ - MOVE_BUFFER_POINTER (laststart); \ - if (pending_exact) \ - MOVE_BUFFER_POINTER (pending_exact); \ - } \ - ELSE_EXTEND_BUFFER_HIGH_BOUND \ - } while (0) -# else /* BYTE */ -# define EXTEND_BUFFER() \ - do { \ - UCHAR_T *old_buffer = COMPILED_BUFFER_VAR; \ - if (bufp->allocated == MAX_BUF_SIZE) \ - return REG_ESIZE; \ - bufp->allocated <<= 1; \ - if (bufp->allocated > MAX_BUF_SIZE) \ - bufp->allocated = MAX_BUF_SIZE; \ - bufp->buffer = REALLOC (COMPILED_BUFFER_VAR, bufp->allocated); \ - if (COMPILED_BUFFER_VAR == NULL) \ - return REG_ESPACE; \ - /* If the buffer moved, move all the pointers into it. */ \ - if (old_buffer != COMPILED_BUFFER_VAR) \ - { \ - int incr = COMPILED_BUFFER_VAR - old_buffer; \ - MOVE_BUFFER_POINTER (b); \ - MOVE_BUFFER_POINTER (begalt); \ - if (fixup_alt_jump) \ - MOVE_BUFFER_POINTER (fixup_alt_jump); \ - if (laststart) \ - MOVE_BUFFER_POINTER (laststart); \ - if (pending_exact) \ - MOVE_BUFFER_POINTER (pending_exact); \ - } \ - ELSE_EXTEND_BUFFER_HIGH_BOUND \ - } while (0) -# endif /* WCHAR */ - -# ifndef DEFINED_ONCE -/* Since we have one byte reserved for the register number argument to - {start,stop}_memory, the maximum number of groups we can report - things about is what fits in that byte. */ -# define MAX_REGNUM 255 - -/* But patterns can have more than `MAX_REGNUM' registers. We just - ignore the excess. */ -typedef unsigned regnum_t; - - -/* Macros for the compile stack. */ - -/* Since offsets can go either forwards or backwards, this type needs to - be able to hold values from -(MAX_BUF_SIZE - 1) to MAX_BUF_SIZE - 1. */ -/* int may be not enough when sizeof(int) == 2. */ -typedef long pattern_offset_t; - -typedef struct -{ - pattern_offset_t begalt_offset; - pattern_offset_t fixup_alt_jump; - pattern_offset_t inner_group_offset; - pattern_offset_t laststart_offset; - regnum_t regnum; -} compile_stack_elt_t; - - -typedef struct -{ - compile_stack_elt_t *stack; - unsigned size; - unsigned avail; /* Offset of next open position. */ -} compile_stack_type; - - -# define INIT_COMPILE_STACK_SIZE 32 - -# define COMPILE_STACK_EMPTY (compile_stack.avail == 0) -# define COMPILE_STACK_FULL (compile_stack.avail == compile_stack.size) - -/* The next available element. */ -# define COMPILE_STACK_TOP (compile_stack.stack[compile_stack.avail]) - -# endif /* not DEFINED_ONCE */ - -/* Set the bit for character C in a list. */ -# ifndef DEFINED_ONCE -# define SET_LIST_BIT(c) \ - (b[((unsigned char) (c)) / BYTEWIDTH] \ - |= 1 << (((unsigned char) c) % BYTEWIDTH)) -# endif /* DEFINED_ONCE */ - -/* Get the next unsigned number in the uncompiled pattern. */ -# define GET_UNSIGNED_NUMBER(num) \ - { \ - while (p != pend) \ - { \ - PATFETCH (c); \ - if (c < '0' || c > '9') \ - break; \ - if (num <= RE_DUP_MAX) \ - { \ - if (num < 0) \ - num = 0; \ - num = num * 10 + c - '0'; \ - } \ - } \ - } - -# ifndef DEFINED_ONCE -# if defined _LIBC || WIDE_CHAR_SUPPORT -/* The GNU C library provides support for user-defined character classes - and the functions from ISO C amendement 1. */ -# ifdef CHARCLASS_NAME_MAX -# define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX -# else -/* This shouldn't happen but some implementation might still have this - problem. Use a reasonable default value. */ -# define CHAR_CLASS_MAX_LENGTH 256 -# endif - -# ifdef _LIBC -# define IS_CHAR_CLASS(string) __wctype (string) -# else -# define IS_CHAR_CLASS(string) wctype (string) -# endif -# else -# define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */ - -# define IS_CHAR_CLASS(string) \ - (STREQ (string, "alpha") || STREQ (string, "upper") \ - || STREQ (string, "lower") || STREQ (string, "digit") \ - || STREQ (string, "alnum") || STREQ (string, "xdigit") \ - || STREQ (string, "space") || STREQ (string, "print") \ - || STREQ (string, "punct") || STREQ (string, "graph") \ - || STREQ (string, "cntrl") || STREQ (string, "blank")) -# endif -# endif /* DEFINED_ONCE */ - -# ifndef MATCH_MAY_ALLOCATE - -/* If we cannot allocate large objects within re_match_2_internal, - we make the fail stack and register vectors global. - The fail stack, we grow to the maximum size when a regexp - is compiled. - The register vectors, we adjust in size each time we - compile a regexp, according to the number of registers it needs. */ - -static PREFIX(fail_stack_type) fail_stack; - -/* Size with which the following vectors are currently allocated. - That is so we can make them bigger as needed, - but never make them smaller. */ -# ifdef DEFINED_ONCE -static int regs_allocated_size; - -static const char ** regstart, ** regend; -static const char ** old_regstart, ** old_regend; -static const char **best_regstart, **best_regend; -static const char **reg_dummy; -# endif /* DEFINED_ONCE */ - -static PREFIX(register_info_type) *PREFIX(reg_info); -static PREFIX(register_info_type) *PREFIX(reg_info_dummy); - -/* Make the register vectors big enough for NUM_REGS registers, - but don't make them smaller. */ - -static void -PREFIX(regex_grow_registers) (int num_regs) -{ - if (num_regs > regs_allocated_size) - { - RETALLOC_IF (regstart, num_regs, const char *); - RETALLOC_IF (regend, num_regs, const char *); - RETALLOC_IF (old_regstart, num_regs, const char *); - RETALLOC_IF (old_regend, num_regs, const char *); - RETALLOC_IF (best_regstart, num_regs, const char *); - RETALLOC_IF (best_regend, num_regs, const char *); - RETALLOC_IF (PREFIX(reg_info), num_regs, PREFIX(register_info_type)); - RETALLOC_IF (reg_dummy, num_regs, const char *); - RETALLOC_IF (PREFIX(reg_info_dummy), num_regs, PREFIX(register_info_type)); - - regs_allocated_size = num_regs; - } -} - -# endif /* not MATCH_MAY_ALLOCATE */ - -# ifndef DEFINED_ONCE -static boolean group_in_compile_stack (compile_stack_type - compile_stack, - regnum_t regnum); -# endif /* not DEFINED_ONCE */ - -/* `regex_compile' compiles PATTERN (of length SIZE) according to SYNTAX. - Returns one of error codes defined in `regex.h', or zero for success. - - Assumes the `allocated' (and perhaps `buffer') and `translate' - fields are set in BUFP on entry. - - If it succeeds, results are put in BUFP (if it returns an error, the - contents of BUFP are undefined): - `buffer' is the compiled pattern; - `syntax' is set to SYNTAX; - `used' is set to the length of the compiled pattern; - `fastmap_accurate' is zero; - `re_nsub' is the number of subexpressions in PATTERN; - `not_bol' and `not_eol' are zero; - - The `fastmap' and `newline_anchor' fields are neither - examined nor set. */ - -/* Return, freeing storage we allocated. */ -# ifdef WCHAR -# define FREE_STACK_RETURN(value) \ - return (free(pattern), free(mbs_offset), free(is_binary), free (compile_stack.stack), value) -# else -# define FREE_STACK_RETURN(value) \ - return (free (compile_stack.stack), value) -# endif /* WCHAR */ - -static reg_errcode_t -PREFIX(regex_compile) (const char *ARG_PREFIX(pattern), - size_t ARG_PREFIX(size), - reg_syntax_t syntax, - struct re_pattern_buffer *bufp) -{ - /* We fetch characters from PATTERN here. Even though PATTERN is - `char *' (i.e., signed), we declare these variables as unsigned, so - they can be reliably used as array indices. */ - register UCHAR_T c, c1; - -#ifdef WCHAR - /* A temporary space to keep wchar_t pattern and compiled pattern. */ - CHAR_T *pattern, *COMPILED_BUFFER_VAR; - size_t size; - /* offset buffer for optimization. See convert_mbs_to_wc. */ - int *mbs_offset = NULL; - /* It hold whether each wchar_t is binary data or not. */ - char *is_binary = NULL; - /* A flag whether exactn is handling binary data or not. */ - char is_exactn_bin = FALSE; -#endif /* WCHAR */ - - /* A random temporary spot in PATTERN. */ - const CHAR_T *p1; - - /* Points to the end of the buffer, where we should append. */ - register UCHAR_T *b; - - /* Keeps track of unclosed groups. */ - compile_stack_type compile_stack; - - /* Points to the current (ending) position in the pattern. */ -#ifdef WCHAR - const CHAR_T *p; - const CHAR_T *pend; -#else /* BYTE */ - const CHAR_T *p = pattern; - const CHAR_T *pend = pattern + size; -#endif /* WCHAR */ - - /* How to translate the characters in the pattern. */ - RE_TRANSLATE_TYPE translate = bufp->translate; - - /* Address of the count-byte of the most recently inserted `exactn' - command. This makes it possible to tell if a new exact-match - character can be added to that command or if the character requires - a new `exactn' command. */ - UCHAR_T *pending_exact = 0; - - /* Address of start of the most recently finished expression. - This tells, e.g., postfix * where to find the start of its - operand. Reset at the beginning of groups and alternatives. */ - UCHAR_T *laststart = 0; - - /* Address of beginning of regexp, or inside of last group. */ - UCHAR_T *begalt; - - /* Address of the place where a forward jump should go to the end of - the containing expression. Each alternative of an `or' -- except the - last -- ends with a forward jump of this sort. */ - UCHAR_T *fixup_alt_jump = 0; - - /* Counts open-groups as they are encountered. Remembered for the - matching close-group on the compile stack, so the same register - number is put in the stop_memory as the start_memory. */ - regnum_t regnum = 0; - -#ifdef WCHAR - /* Initialize the wchar_t PATTERN and offset_buffer. */ - p = pend = pattern = TALLOC(csize + 1, CHAR_T); - mbs_offset = TALLOC(csize + 1, int); - is_binary = TALLOC(csize + 1, char); - if (pattern == NULL || mbs_offset == NULL || is_binary == NULL) - { - free(pattern); - free(mbs_offset); - free(is_binary); - return REG_ESPACE; - } - pattern[csize] = L'\0'; /* sentinel */ - size = convert_mbs_to_wcs(pattern, cpattern, csize, mbs_offset, is_binary); - pend = p + size; - if (size < 0) - { - free(pattern); - free(mbs_offset); - free(is_binary); - return REG_BADPAT; - } -#endif - -#ifdef DEBUG - DEBUG_PRINT1 ("\nCompiling pattern: "); - if (debug) - { - unsigned debug_count; - - for (debug_count = 0; debug_count < size; debug_count++) - PUT_CHAR (pattern[debug_count]); - putchar ('\n'); - } -#endif /* DEBUG */ - - /* Initialize the compile stack. */ - compile_stack.stack = TALLOC (INIT_COMPILE_STACK_SIZE, compile_stack_elt_t); - if (compile_stack.stack == NULL) - { -#ifdef WCHAR - free(pattern); - free(mbs_offset); - free(is_binary); -#endif - return REG_ESPACE; - } - - compile_stack.size = INIT_COMPILE_STACK_SIZE; - compile_stack.avail = 0; - - /* Initialize the pattern buffer. */ - bufp->syntax = syntax; - bufp->fastmap_accurate = 0; - bufp->not_bol = bufp->not_eol = 0; - - /* Set `used' to zero, so that if we return an error, the pattern - printer (for debugging) will think there's no pattern. We reset it - at the end. */ - bufp->used = 0; - - /* Always count groups, whether or not bufp->no_sub is set. */ - bufp->re_nsub = 0; - -#if !defined emacs && !defined SYNTAX_TABLE - /* Initialize the syntax table. */ - init_syntax_once (); -#endif - - if (bufp->allocated == 0) - { - if (bufp->buffer) - { /* If zero allocated, but buffer is non-null, try to realloc - enough space. This loses if buffer's address is bogus, but - that is the user's responsibility. */ -#ifdef WCHAR - /* Free bufp->buffer and allocate an array for wchar_t pattern - buffer. */ - free(bufp->buffer); - COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE/sizeof(UCHAR_T), - UCHAR_T); -#else - RETALLOC (COMPILED_BUFFER_VAR, INIT_BUF_SIZE, UCHAR_T); -#endif /* WCHAR */ - } - else - { /* Caller did not allocate a buffer. Do it for them. */ - COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE / sizeof(UCHAR_T), - UCHAR_T); - } - - if (!COMPILED_BUFFER_VAR) FREE_STACK_RETURN (REG_ESPACE); -#ifdef WCHAR - bufp->buffer = (char*)COMPILED_BUFFER_VAR; -#endif /* WCHAR */ - bufp->allocated = INIT_BUF_SIZE; - } -#ifdef WCHAR - else - COMPILED_BUFFER_VAR = (UCHAR_T*) bufp->buffer; -#endif - - begalt = b = COMPILED_BUFFER_VAR; - - /* Loop through the uncompiled pattern until we're at the end. */ - while (p != pend) - { - PATFETCH (c); - - switch (c) - { - case '^': - { - if ( /* If at start of pattern, it's an operator. */ - p == pattern + 1 - /* If context independent, it's an operator. */ - || syntax & RE_CONTEXT_INDEP_ANCHORS - /* Otherwise, depends on what's come before. */ - || PREFIX(at_begline_loc_p) (pattern, p, syntax)) - BUF_PUSH (begline); - else - goto normal_char; - } - break; - - - case '$': - { - if ( /* If at end of pattern, it's an operator. */ - p == pend - /* If context independent, it's an operator. */ - || syntax & RE_CONTEXT_INDEP_ANCHORS - /* Otherwise, depends on what's next. */ - || PREFIX(at_endline_loc_p) (p, pend, syntax)) - BUF_PUSH (endline); - else - goto normal_char; - } - break; - - - case '+': - case '?': - if ((syntax & RE_BK_PLUS_QM) - || (syntax & RE_LIMITED_OPS)) - goto normal_char; - handle_plus: - case '*': - /* If there is no previous pattern... */ - if (!laststart) - { - if (syntax & RE_CONTEXT_INVALID_OPS) - FREE_STACK_RETURN (REG_BADRPT); - else if (!(syntax & RE_CONTEXT_INDEP_OPS)) - goto normal_char; - } - - { - /* Are we optimizing this jump? */ - boolean keep_string_p = false; - - /* 1 means zero (many) matches is allowed. */ - char zero_times_ok = 0, many_times_ok = 0; - - /* If there is a sequence of repetition chars, collapse it - down to just one (the right one). We can't combine - interval operators with these because of, e.g., `a{2}*', - which should only match an even number of `a's. */ - - for (;;) - { - zero_times_ok |= c != '+'; - many_times_ok |= c != '?'; - - if (p == pend) - break; - - PATFETCH (c); - - if (c == '*' - || (!(syntax & RE_BK_PLUS_QM) && (c == '+' || c == '?'))) - ; - - else if (syntax & RE_BK_PLUS_QM && c == '\\') - { - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - PATFETCH (c1); - if (!(c1 == '+' || c1 == '?')) - { - PATUNFETCH; - PATUNFETCH; - break; - } - - c = c1; - } - else - { - PATUNFETCH; - break; - } - - /* If we get here, we found another repeat character. */ - } - - /* Star, etc. applied to an empty pattern is equivalent - to an empty pattern. */ - if (!laststart) - break; - - /* Now we know whether or not zero matches is allowed - and also whether or not two or more matches is allowed. */ - if (many_times_ok) - { /* More than one repetition is allowed, so put in at the - end a backward relative jump from `b' to before the next - jump we're going to put in below (which jumps from - laststart to after this jump). - - But if we are at the `*' in the exact sequence `.*\n', - insert an unconditional jump backwards to the ., - instead of the beginning of the loop. This way we only - push a failure point once, instead of every time - through the loop. */ - assert (p - 1 > pattern); - - /* Allocate the space for the jump. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - - /* We know we are not at the first character of the pattern, - because laststart was nonzero. And we've already - incremented `p', by the way, to be the character after - the `*'. Do we have to do something analogous here - for null bytes, because of RE_DOT_NOT_NULL? */ - if (TRANSLATE (*(p - 2)) == TRANSLATE ('.') - && zero_times_ok - && p < pend && TRANSLATE (*p) == TRANSLATE ('\n') - && !(syntax & RE_DOT_NEWLINE)) - { /* We have .*\n. */ - STORE_JUMP (jump, b, laststart); - keep_string_p = true; - } - else - /* Anything else. */ - STORE_JUMP (maybe_pop_jump, b, laststart - - (1 + OFFSET_ADDRESS_SIZE)); - - /* We've added more stuff to the buffer. */ - b += 1 + OFFSET_ADDRESS_SIZE; - } - - /* On failure, jump from laststart to b + 3, which will be the - end of the buffer after this jump is inserted. */ - /* ifdef WCHAR, 'b + 1 + OFFSET_ADDRESS_SIZE' instead of - 'b + 3'. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (keep_string_p ? on_failure_keep_string_jump - : on_failure_jump, - laststart, b + 1 + OFFSET_ADDRESS_SIZE); - pending_exact = 0; - b += 1 + OFFSET_ADDRESS_SIZE; - - if (!zero_times_ok) - { - /* At least one repetition is required, so insert a - `dummy_failure_jump' before the initial - `on_failure_jump' instruction of the loop. This - effects a skip over that instruction the first time - we hit that loop. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (dummy_failure_jump, laststart, laststart + - 2 + 2 * OFFSET_ADDRESS_SIZE); - b += 1 + OFFSET_ADDRESS_SIZE; - } - } - break; - - - case '.': - laststart = b; - BUF_PUSH (anychar); - break; - - - case '[': - { - boolean had_char_class = false; -#ifdef WCHAR - CHAR_T range_start = 0xffffffff; -#else - unsigned int range_start = 0xffffffff; -#endif - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - -#ifdef WCHAR - /* We assume a charset(_not) structure as a wchar_t array. - charset[0] = (re_opcode_t) charset(_not) - charset[1] = l (= length of char_classes) - charset[2] = m (= length of collating_symbols) - charset[3] = n (= length of equivalence_classes) - charset[4] = o (= length of char_ranges) - charset[5] = p (= length of chars) - - charset[6] = char_class (wctype_t) - charset[6+CHAR_CLASS_SIZE] = char_class (wctype_t) - ... - charset[l+5] = char_class (wctype_t) - - charset[l+6] = collating_symbol (wchar_t) - ... - charset[l+m+5] = collating_symbol (wchar_t) - ifdef _LIBC we use the index if - _NL_COLLATE_SYMB_EXTRAMB instead of - wchar_t string. - - charset[l+m+6] = equivalence_classes (wchar_t) - ... - charset[l+m+n+5] = equivalence_classes (wchar_t) - ifdef _LIBC we use the index in - _NL_COLLATE_WEIGHT instead of - wchar_t string. - - charset[l+m+n+6] = range_start - charset[l+m+n+7] = range_end - ... - charset[l+m+n+2o+4] = range_start - charset[l+m+n+2o+5] = range_end - ifdef _LIBC we use the value looked up - in _NL_COLLATE_COLLSEQ instead of - wchar_t character. - - charset[l+m+n+2o+6] = char - ... - charset[l+m+n+2o+p+5] = char - - */ - - /* We need at least 6 spaces: the opcode, the length of - char_classes, the length of collating_symbols, the length of - equivalence_classes, the length of char_ranges, the length of - chars. */ - GET_BUFFER_SPACE (6); - - /* Save b as laststart. And We use laststart as the pointer - to the first element of the charset here. - In other words, laststart[i] indicates charset[i]. */ - laststart = b; - - /* We test `*p == '^' twice, instead of using an if - statement, so we only need one BUF_PUSH. */ - BUF_PUSH (*p == '^' ? charset_not : charset); - if (*p == '^') - p++; - - /* Push the length of char_classes, the length of - collating_symbols, the length of equivalence_classes, the - length of char_ranges and the length of chars. */ - BUF_PUSH_3 (0, 0, 0); - BUF_PUSH_2 (0, 0); - - /* Remember the first position in the bracket expression. */ - p1 = p; - - /* charset_not matches newline according to a syntax bit. */ - if ((re_opcode_t) b[-6] == charset_not - && (syntax & RE_HAT_LISTS_NOT_NEWLINE)) - { - BUF_PUSH('\n'); - laststart[5]++; /* Update the length of characters */ - } - - /* Read in characters and ranges, setting map bits. */ - for (;;) - { - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - PATFETCH (c); - - /* \ might escape characters inside [...] and [^...]. */ - if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\') - { - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - PATFETCH (c1); - BUF_PUSH(c1); - laststart[5]++; /* Update the length of chars */ - range_start = c1; - continue; - } - - /* Could be the end of the bracket expression. If it's - not (i.e., when the bracket expression is `[]' so - far), the ']' character bit gets set way below. */ - if (c == ']' && p != p1 + 1) - break; - - /* Look ahead to see if it's a range when the last thing - was a character class. */ - if (had_char_class && c == '-' && *p != ']') - FREE_STACK_RETURN (REG_ERANGE); - - /* Look ahead to see if it's a range when the last thing - was a character: if this is a hyphen not at the - beginning or the end of a list, then it's the range - operator. */ - if (c == '-' - && !(p - 2 >= pattern && p[-2] == '[') - && !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^') - && *p != ']') - { - reg_errcode_t ret; - /* Allocate the space for range_start and range_end. */ - GET_BUFFER_SPACE (2); - /* Update the pointer to indicate end of buffer. */ - b += 2; - ret = wcs_compile_range (range_start, &p, pend, translate, - syntax, b, laststart); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - else if (p[0] == '-' && p[1] != ']') - { /* This handles ranges made up of characters only. */ - reg_errcode_t ret; - - /* Move past the `-'. */ - PATFETCH (c1); - /* Allocate the space for range_start and range_end. */ - GET_BUFFER_SPACE (2); - /* Update the pointer to indicate end of buffer. */ - b += 2; - ret = wcs_compile_range (c, &p, pend, translate, syntax, b, - laststart); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - - /* See if we're at the beginning of a possible character - class. */ - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':') - { /* Leave room for the null. */ - char str[CHAR_CLASS_MAX_LENGTH + 1]; - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[:'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == ':' && *p == ']') || p == pend) - break; - if (c1 < CHAR_CLASS_MAX_LENGTH) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - /* If isn't a word bracketed by `[:' and `:]': - undo the ending character, the letters, and leave - the leading `:' and `[' (but store them as character). */ - if (c == ':' && *p == ']') - { - wctype_t wt; - uintptr_t alignedp; - - /* Query the character class as wctype_t. */ - wt = IS_CHAR_CLASS (str); - if (wt == 0) - FREE_STACK_RETURN (REG_ECTYPE); - - /* Throw away the ] at the end of the character - class. */ - PATFETCH (c); - - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - /* Allocate the space for character class. */ - GET_BUFFER_SPACE(CHAR_CLASS_SIZE); - /* Update the pointer to indicate end of buffer. */ - b += CHAR_CLASS_SIZE; - /* Move data which follow character classes - not to violate the data. */ - insert_space(CHAR_CLASS_SIZE, - laststart + 6 + laststart[1], - b - 1); - alignedp = ((uintptr_t)(laststart + 6 + laststart[1]) - + __alignof__(wctype_t) - 1) - & ~(uintptr_t)(__alignof__(wctype_t) - 1); - /* Store the character class. */ - *((wctype_t*)alignedp) = wt; - /* Update length of char_classes */ - laststart[1] += CHAR_CLASS_SIZE; - - had_char_class = true; - } - else - { - c1++; - while (c1--) - PATUNFETCH; - BUF_PUSH ('['); - BUF_PUSH (':'); - laststart[5] += 2; /* Update the length of characters */ - range_start = ':'; - had_char_class = false; - } - } - else if (syntax & RE_CHAR_CLASSES && c == '[' && (*p == '=' - || *p == '.')) - { - CHAR_T str[128]; /* Should be large enough. */ - CHAR_T delim = *p; /* '=' or '.' */ -# ifdef _LIBC - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[=' or '[[.'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == delim && *p == ']') || p == pend) - break; - if (c1 < sizeof (str) - 1) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - if (c == delim && *p == ']' && str[0] != '\0') - { - unsigned int i, offset; - /* If we have no collation data we use the default - collation in which each character is in a class - by itself. It also means that ASCII is the - character set and therefore we cannot have character - with more than one byte in the multibyte - representation. */ - - /* If not defined _LIBC, we push the name and - `\0' for the sake of matching performance. */ - int datasize = c1 + 1; - -# ifdef _LIBC - int32_t idx = 0; - if (nrules == 0) -# endif - { - if (c1 != 1) - FREE_STACK_RETURN (REG_ECOLLATE); - } -# ifdef _LIBC - else - { - const int32_t *table; - const int32_t *weights; - const int32_t *extra; - const int32_t *indirect; - wint_t *cp; - - /* This #include defines a local function! */ -# include <locale/weightwc.h> - - if(delim == '=') - { - /* We push the index for equivalence class. */ - cp = (wint_t*)str; - - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_TABLEWC); - weights = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_WEIGHTWC); - extra = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_EXTRAWC); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_INDIRECTWC); - - idx = findidx ((const wint_t**)&cp); - if (idx == 0 || cp < (wint_t*) str + c1) - /* This is no valid character. */ - FREE_STACK_RETURN (REG_ECOLLATE); - - str[0] = (wchar_t)idx; - } - else /* delim == '.' */ - { - /* We push collation sequence value - for collating symbol. */ - int32_t table_size; - const int32_t *symb_table; - const unsigned char *extra; - int32_t idx; - int32_t elem; - int32_t second; - int32_t hash; - char char_str[c1]; - - /* We have to convert the name to a single-byte - string. This is possible since the names - consist of ASCII characters and the internal - representation is UCS4. */ - for (i = 0; i < c1; ++i) - char_str[i] = str[i]; - - table_size = - _NL_CURRENT_WORD (LC_COLLATE, - _NL_COLLATE_SYMB_HASH_SIZEMB); - symb_table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_TABLEMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_EXTRAMB); - - /* Locate the character in the hashing table. */ - hash = elem_hash (char_str, c1); - - idx = 0; - elem = hash % table_size; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* First compare the hashing value. */ - if (symb_table[2 * elem] == hash - && c1 == extra[symb_table[2 * elem + 1]] - && memcmp (char_str, - &extra[symb_table[2 * elem + 1] - + 1], c1) == 0) - { - /* Yep, this is the entry. */ - idx = symb_table[2 * elem + 1]; - idx += 1 + extra[idx]; - break; - } - - /* Next entry. */ - elem += second; - } - - if (symb_table[2 * elem] != 0) - { - /* Compute the index of the byte sequence - in the table. */ - idx += 1 + extra[idx]; - /* Adjust for the alignment. */ - idx = (idx + 3) & ~3; - - str[0] = (wchar_t) idx + 4; - } - else if (symb_table[2 * elem] == 0 && c1 == 1) - { - /* No valid character. Match it as a - single byte character. */ - had_char_class = false; - BUF_PUSH(str[0]); - /* Update the length of characters */ - laststart[5]++; - range_start = str[0]; - - /* Throw away the ] at the end of the - collating symbol. */ - PATFETCH (c); - /* exit from the switch block. */ - continue; - } - else - FREE_STACK_RETURN (REG_ECOLLATE); - } - datasize = 1; - } -# endif - /* Throw away the ] at the end of the equivalence - class (or collating symbol). */ - PATFETCH (c); - - /* Allocate the space for the equivalence class - (or collating symbol) (and '\0' if needed). */ - GET_BUFFER_SPACE(datasize); - /* Update the pointer to indicate end of buffer. */ - b += datasize; - - if (delim == '=') - { /* equivalence class */ - /* Calculate the offset of char_ranges, - which is next to equivalence_classes. */ - offset = laststart[1] + laststart[2] - + laststart[3] +6; - /* Insert space. */ - insert_space(datasize, laststart + offset, b - 1); - - /* Write the equivalence_class and \0. */ - for (i = 0 ; i < datasize ; i++) - laststart[offset + i] = str[i]; - - /* Update the length of equivalence_classes. */ - laststart[3] += datasize; - had_char_class = true; - } - else /* delim == '.' */ - { /* collating symbol */ - /* Calculate the offset of the equivalence_classes, - which is next to collating_symbols. */ - offset = laststart[1] + laststart[2] + 6; - /* Insert space and write the collationg_symbol - and \0. */ - insert_space(datasize, laststart + offset, b-1); - for (i = 0 ; i < datasize ; i++) - laststart[offset + i] = str[i]; - - /* In re_match_2_internal if range_start < -1, we - assume -range_start is the offset of the - collating symbol which is specified as - the character of the range start. So we assign - -(laststart[1] + laststart[2] + 6) to - range_start. */ - range_start = -(laststart[1] + laststart[2] + 6); - /* Update the length of collating_symbol. */ - laststart[2] += datasize; - had_char_class = false; - } - } - else - { - c1++; - while (c1--) - PATUNFETCH; - BUF_PUSH ('['); - BUF_PUSH (delim); - laststart[5] += 2; /* Update the length of characters */ - range_start = delim; - had_char_class = false; - } - } - else - { - had_char_class = false; - BUF_PUSH(c); - laststart[5]++; /* Update the length of characters */ - range_start = c; - } - } - -#else /* BYTE */ - /* Ensure that we have enough space to push a charset: the - opcode, the length count, and the bitset; 34 bytes in all. */ - GET_BUFFER_SPACE (34); - - laststart = b; - - /* We test `*p == '^' twice, instead of using an if - statement, so we only need one BUF_PUSH. */ - BUF_PUSH (*p == '^' ? charset_not : charset); - if (*p == '^') - p++; - - /* Remember the first position in the bracket expression. */ - p1 = p; - - /* Push the number of bytes in the bitmap. */ - BUF_PUSH ((1 << BYTEWIDTH) / BYTEWIDTH); - - /* Clear the whole map. */ - bzero (b, (1 << BYTEWIDTH) / BYTEWIDTH); - - /* charset_not matches newline according to a syntax bit. */ - if ((re_opcode_t) b[-2] == charset_not - && (syntax & RE_HAT_LISTS_NOT_NEWLINE)) - SET_LIST_BIT ('\n'); - - /* Read in characters and ranges, setting map bits. */ - for (;;) - { - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - PATFETCH (c); - - /* \ might escape characters inside [...] and [^...]. */ - if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\') - { - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - PATFETCH (c1); - SET_LIST_BIT (c1); - range_start = c1; - continue; - } - - /* Could be the end of the bracket expression. If it's - not (i.e., when the bracket expression is `[]' so - far), the ']' character bit gets set way below. */ - if (c == ']' && p != p1 + 1) - break; - - /* Look ahead to see if it's a range when the last thing - was a character class. */ - if (had_char_class && c == '-' && *p != ']') - FREE_STACK_RETURN (REG_ERANGE); - - /* Look ahead to see if it's a range when the last thing - was a character: if this is a hyphen not at the - beginning or the end of a list, then it's the range - operator. */ - if (c == '-' - && !(p - 2 >= pattern && p[-2] == '[') - && !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^') - && *p != ']') - { - reg_errcode_t ret - = byte_compile_range (range_start, &p, pend, translate, - syntax, b); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - - else if (p[0] == '-' && p[1] != ']') - { /* This handles ranges made up of characters only. */ - reg_errcode_t ret; - - /* Move past the `-'. */ - PATFETCH (c1); - - ret = byte_compile_range (c, &p, pend, translate, syntax, b); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - - /* See if we're at the beginning of a possible character - class. */ - - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':') - { /* Leave room for the null. */ - char str[CHAR_CLASS_MAX_LENGTH + 1]; - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[:'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == ':' && *p == ']') || p == pend) - break; - if (c1 < CHAR_CLASS_MAX_LENGTH) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - /* If isn't a word bracketed by `[:' and `:]': - undo the ending character, the letters, and leave - the leading `:' and `[' (but set bits for them). */ - if (c == ':' && *p == ']') - { -# if defined _LIBC || WIDE_CHAR_SUPPORT - boolean is_lower = STREQ (str, "lower"); - boolean is_upper = STREQ (str, "upper"); - wctype_t wt; - int ch; - - wt = IS_CHAR_CLASS (str); - if (wt == 0) - FREE_STACK_RETURN (REG_ECTYPE); - - /* Throw away the ] at the end of the character - class. */ - PATFETCH (c); - - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (ch = 0; ch < 1 << BYTEWIDTH; ++ch) - { - if (iswctype (btowc (ch), wt)) - SET_LIST_BIT (ch); - - if (translate && (is_upper || is_lower) - && (ISUPPER (ch) || ISLOWER (ch))) - SET_LIST_BIT (ch); - } - - had_char_class = true; -# else - int ch; - boolean is_alnum = STREQ (str, "alnum"); - boolean is_alpha = STREQ (str, "alpha"); - boolean is_blank = STREQ (str, "blank"); - boolean is_cntrl = STREQ (str, "cntrl"); - boolean is_digit = STREQ (str, "digit"); - boolean is_graph = STREQ (str, "graph"); - boolean is_lower = STREQ (str, "lower"); - boolean is_print = STREQ (str, "print"); - boolean is_punct = STREQ (str, "punct"); - boolean is_space = STREQ (str, "space"); - boolean is_upper = STREQ (str, "upper"); - boolean is_xdigit = STREQ (str, "xdigit"); - - if (!IS_CHAR_CLASS (str)) - FREE_STACK_RETURN (REG_ECTYPE); - - /* Throw away the ] at the end of the character - class. */ - PATFETCH (c); - - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (ch = 0; ch < 1 << BYTEWIDTH; ch++) - { - /* This was split into 3 if's to - avoid an arbitrary limit in some compiler. */ - if ( (is_alnum && ISALNUM (ch)) - || (is_alpha && ISALPHA (ch)) - || (is_blank && ISBLANK (ch)) - || (is_cntrl && ISCNTRL (ch))) - SET_LIST_BIT (ch); - if ( (is_digit && ISDIGIT (ch)) - || (is_graph && ISGRAPH (ch)) - || (is_lower && ISLOWER (ch)) - || (is_print && ISPRINT (ch))) - SET_LIST_BIT (ch); - if ( (is_punct && ISPUNCT (ch)) - || (is_space && ISSPACE (ch)) - || (is_upper && ISUPPER (ch)) - || (is_xdigit && ISXDIGIT (ch))) - SET_LIST_BIT (ch); - if ( translate && (is_upper || is_lower) - && (ISUPPER (ch) || ISLOWER (ch))) - SET_LIST_BIT (ch); - } - had_char_class = true; -# endif /* libc || wctype.h */ - } - else - { - c1++; - while (c1--) - PATUNFETCH; - SET_LIST_BIT ('['); - SET_LIST_BIT (':'); - range_start = ':'; - had_char_class = false; - } - } - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == '=') - { - unsigned char str[MB_LEN_MAX + 1]; -# ifdef _LIBC - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[='. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == '=' && *p == ']') || p == pend) - break; - if (c1 < MB_LEN_MAX) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - if (c == '=' && *p == ']' && str[0] != '\0') - { - /* If we have no collation data we use the default - collation in which each character is in a class - by itself. It also means that ASCII is the - character set and therefore we cannot have character - with more than one byte in the multibyte - representation. */ -# ifdef _LIBC - if (nrules == 0) -# endif - { - if (c1 != 1) - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Set the bit for the character. */ - SET_LIST_BIT (str[0]); - } -# ifdef _LIBC - else - { - /* Try to match the byte sequence in `str' against - those known to the collate implementation. - First find out whether the bytes in `str' are - actually from exactly one character. */ - const int32_t *table; - const unsigned char *weights; - const unsigned char *extra; - const int32_t *indirect; - int32_t idx; - const unsigned char *cp = str; - int ch; - - /* This #include defines a local function! */ -# include <locale/weight.h> - - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB); - weights = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTMB); - - idx = findidx (&cp); - if (idx == 0 || cp < str + c1) - /* This is no valid character. */ - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Now we have to go throught the whole table - and find all characters which have the same - first level weight. - - XXX Note that this is not entirely correct. - we would have to match multibyte sequences - but this is not possible with the current - implementation. */ - for (ch = 1; ch < 256; ++ch) - /* XXX This test would have to be changed if we - would allow matching multibyte sequences. */ - if (table[ch] > 0) - { - int32_t idx2 = table[ch]; - size_t len = weights[idx2]; - - /* Test whether the lenghts match. */ - if (weights[idx] == len) - { - /* They do. New compare the bytes of - the weight. */ - size_t cnt = 0; - - while (cnt < len - && (weights[idx + 1 + cnt] - == weights[idx2 + 1 + cnt])) - ++cnt; - - if (cnt == len) - /* They match. Mark the character as - acceptable. */ - SET_LIST_BIT (ch); - } - } - } -# endif - had_char_class = true; - } - else - { - c1++; - while (c1--) - PATUNFETCH; - SET_LIST_BIT ('['); - SET_LIST_BIT ('='); - range_start = '='; - had_char_class = false; - } - } - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == '.') - { - unsigned char str[128]; /* Should be large enough. */ -# ifdef _LIBC - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[.'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == '.' && *p == ']') || p == pend) - break; - if (c1 < sizeof (str)) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - if (c == '.' && *p == ']' && str[0] != '\0') - { - /* If we have no collation data we use the default - collation in which each character is the name - for its own class which contains only the one - character. It also means that ASCII is the - character set and therefore we cannot have character - with more than one byte in the multibyte - representation. */ -# ifdef _LIBC - if (nrules == 0) -# endif - { - if (c1 != 1) - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Set the bit for the character. */ - SET_LIST_BIT (str[0]); - range_start = ((const unsigned char *) str)[0]; - } -# ifdef _LIBC - else - { - /* Try to match the byte sequence in `str' against - those known to the collate implementation. - First find out whether the bytes in `str' are - actually from exactly one character. */ - int32_t table_size; - const int32_t *symb_table; - const unsigned char *extra; - int32_t idx; - int32_t elem; - int32_t second; - int32_t hash; - - table_size = - _NL_CURRENT_WORD (LC_COLLATE, - _NL_COLLATE_SYMB_HASH_SIZEMB); - symb_table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_TABLEMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_EXTRAMB); - - /* Locate the character in the hashing table. */ - hash = elem_hash (str, c1); - - idx = 0; - elem = hash % table_size; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* First compare the hashing value. */ - if (symb_table[2 * elem] == hash - && c1 == extra[symb_table[2 * elem + 1]] - && memcmp (str, - &extra[symb_table[2 * elem + 1] - + 1], - c1) == 0) - { - /* Yep, this is the entry. */ - idx = symb_table[2 * elem + 1]; - idx += 1 + extra[idx]; - break; - } - - /* Next entry. */ - elem += second; - } - - if (symb_table[2 * elem] == 0) - /* This is no valid character. */ - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Now add the multibyte character(s) we found - to the accept list. - - XXX Note that this is not entirely correct. - we would have to match multibyte sequences - but this is not possible with the current - implementation. Also, we have to match - collating symbols, which expand to more than - one file, as a whole and not allow the - individual bytes. */ - c1 = extra[idx++]; - if (c1 == 1) - range_start = extra[idx]; - while (c1-- > 0) - { - SET_LIST_BIT (extra[idx]); - ++idx; - } - } -# endif - had_char_class = false; - } - else - { - c1++; - while (c1--) - PATUNFETCH; - SET_LIST_BIT ('['); - SET_LIST_BIT ('.'); - range_start = '.'; - had_char_class = false; - } - } - else - { - had_char_class = false; - SET_LIST_BIT (c); - range_start = c; - } - } - - /* Discard any (non)matching list bytes that are all 0 at the - end of the map. Decrease the map-length byte too. */ - while ((int) b[-1] > 0 && b[b[-1] - 1] == 0) - b[-1]--; - b += b[-1]; -#endif /* WCHAR */ - } - break; - - - case '(': - if (syntax & RE_NO_BK_PARENS) - goto handle_open; - else - goto normal_char; - - - case ')': - if (syntax & RE_NO_BK_PARENS) - goto handle_close; - else - goto normal_char; - - - case '\n': - if (syntax & RE_NEWLINE_ALT) - goto handle_alt; - else - goto normal_char; - - - case '|': - if (syntax & RE_NO_BK_VBAR) - goto handle_alt; - else - goto normal_char; - - - case '{': - if (syntax & RE_INTERVALS && syntax & RE_NO_BK_BRACES) - goto handle_interval; - else - goto normal_char; - - - case '\\': - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - /* Do not translate the character after the \, so that we can - distinguish, e.g., \B from \b, even if we normally would - translate, e.g., B to b. */ - PATFETCH_RAW (c); - - switch (c) - { - case '(': - if (syntax & RE_NO_BK_PARENS) - goto normal_backslash; - - handle_open: - bufp->re_nsub++; - regnum++; - - if (COMPILE_STACK_FULL) - { - RETALLOC (compile_stack.stack, compile_stack.size << 1, - compile_stack_elt_t); - if (compile_stack.stack == NULL) return REG_ESPACE; - - compile_stack.size <<= 1; - } - - /* These are the values to restore when we hit end of this - group. They are all relative offsets, so that if the - whole pattern moves because of realloc, they will still - be valid. */ - COMPILE_STACK_TOP.begalt_offset = begalt - COMPILED_BUFFER_VAR; - COMPILE_STACK_TOP.fixup_alt_jump - = fixup_alt_jump ? fixup_alt_jump - COMPILED_BUFFER_VAR + 1 : 0; - COMPILE_STACK_TOP.laststart_offset = b - COMPILED_BUFFER_VAR; - COMPILE_STACK_TOP.regnum = regnum; - - /* We will eventually replace the 0 with the number of - groups inner to this one. But do not push a - start_memory for groups beyond the last one we can - represent in the compiled pattern. */ - if (regnum <= MAX_REGNUM) - { - COMPILE_STACK_TOP.inner_group_offset = b - - COMPILED_BUFFER_VAR + 2; - BUF_PUSH_3 (start_memory, regnum, 0); - } - - compile_stack.avail++; - - fixup_alt_jump = 0; - laststart = 0; - begalt = b; - /* If we've reached MAX_REGNUM groups, then this open - won't actually generate any code, so we'll have to - clear pending_exact explicitly. */ - pending_exact = 0; - break; - - - case ')': - if (syntax & RE_NO_BK_PARENS) goto normal_backslash; - - if (COMPILE_STACK_EMPTY) - { - if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD) - goto normal_backslash; - else - FREE_STACK_RETURN (REG_ERPAREN); - } - - handle_close: - if (fixup_alt_jump) - { /* Push a dummy failure point at the end of the - alternative for a possible future - `pop_failure_jump' to pop. See comments at - `push_dummy_failure' in `re_match_2'. */ - BUF_PUSH (push_dummy_failure); - - /* We allocated space for this jump when we assigned - to `fixup_alt_jump', in the `handle_alt' case below. */ - STORE_JUMP (jump_past_alt, fixup_alt_jump, b - 1); - } - - /* See similar code for backslashed left paren above. */ - if (COMPILE_STACK_EMPTY) - { - if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD) - goto normal_char; - else - FREE_STACK_RETURN (REG_ERPAREN); - } - - /* Since we just checked for an empty stack above, this - ``can't happen''. */ - assert (compile_stack.avail != 0); - { - /* We don't just want to restore into `regnum', because - later groups should continue to be numbered higher, - as in `(ab)c(de)' -- the second group is #2. */ - regnum_t this_group_regnum; - - compile_stack.avail--; - begalt = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.begalt_offset; - fixup_alt_jump - = COMPILE_STACK_TOP.fixup_alt_jump - ? COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.fixup_alt_jump - 1 - : 0; - laststart = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.laststart_offset; - this_group_regnum = COMPILE_STACK_TOP.regnum; - /* If we've reached MAX_REGNUM groups, then this open - won't actually generate any code, so we'll have to - clear pending_exact explicitly. */ - pending_exact = 0; - - /* We're at the end of the group, so now we know how many - groups were inside this one. */ - if (this_group_regnum <= MAX_REGNUM) - { - UCHAR_T *inner_group_loc - = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.inner_group_offset; - - *inner_group_loc = regnum - this_group_regnum; - BUF_PUSH_3 (stop_memory, this_group_regnum, - regnum - this_group_regnum); - } - } - break; - - - case '|': /* `\|'. */ - if (syntax & RE_LIMITED_OPS || syntax & RE_NO_BK_VBAR) - goto normal_backslash; - handle_alt: - if (syntax & RE_LIMITED_OPS) - goto normal_char; - - /* Insert before the previous alternative a jump which - jumps to this alternative if the former fails. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (on_failure_jump, begalt, - b + 2 + 2 * OFFSET_ADDRESS_SIZE); - pending_exact = 0; - b += 1 + OFFSET_ADDRESS_SIZE; - - /* The alternative before this one has a jump after it - which gets executed if it gets matched. Adjust that - jump so it will jump to this alternative's analogous - jump (put in below, which in turn will jump to the next - (if any) alternative's such jump, etc.). The last such - jump jumps to the correct final destination. A picture: - _____ _____ - | | | | - | v | v - a | b | c - - If we are at `b', then fixup_alt_jump right now points to a - three-byte space after `a'. We'll put in the jump, set - fixup_alt_jump to right after `b', and leave behind three - bytes which we'll fill in when we get to after `c'. */ - - if (fixup_alt_jump) - STORE_JUMP (jump_past_alt, fixup_alt_jump, b); - - /* Mark and leave space for a jump after this alternative, - to be filled in later either by next alternative or - when know we're at the end of a series of alternatives. */ - fixup_alt_jump = b; - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - b += 1 + OFFSET_ADDRESS_SIZE; - - laststart = 0; - begalt = b; - break; - - - case '{': - /* If \{ is a literal. */ - if (!(syntax & RE_INTERVALS) - /* If we're at `\{' and it's not the open-interval - operator. */ - || (syntax & RE_NO_BK_BRACES)) - goto normal_backslash; - - handle_interval: - { - /* If got here, then the syntax allows intervals. */ - - /* At least (most) this many matches must be made. */ - int lower_bound = -1, upper_bound = -1; - - /* Place in the uncompiled pattern (i.e., just after - the '{') to go back to if the interval is invalid. */ - const CHAR_T *beg_interval = p; - - if (p == pend) - goto invalid_interval; - - GET_UNSIGNED_NUMBER (lower_bound); - - if (c == ',') - { - GET_UNSIGNED_NUMBER (upper_bound); - if (upper_bound < 0) - upper_bound = RE_DUP_MAX; - } - else - /* Interval such as `{1}' => match exactly once. */ - upper_bound = lower_bound; - - if (! (0 <= lower_bound && lower_bound <= upper_bound)) - goto invalid_interval; - - if (!(syntax & RE_NO_BK_BRACES)) - { - if (c != '\\' || p == pend) - goto invalid_interval; - PATFETCH (c); - } - - if (c != '}') - goto invalid_interval; - - /* If it's invalid to have no preceding re. */ - if (!laststart) - { - if (syntax & RE_CONTEXT_INVALID_OPS - && !(syntax & RE_INVALID_INTERVAL_ORD)) - FREE_STACK_RETURN (REG_BADRPT); - else if (syntax & RE_CONTEXT_INDEP_OPS) - laststart = b; - else - goto unfetch_interval; - } - - /* We just parsed a valid interval. */ - - if (RE_DUP_MAX < upper_bound) - FREE_STACK_RETURN (REG_BADBR); - - /* If the upper bound is zero, don't want to succeed at - all; jump from `laststart' to `b + 3', which will be - the end of the buffer after we insert the jump. */ - /* ifdef WCHAR, 'b + 1 + OFFSET_ADDRESS_SIZE' - instead of 'b + 3'. */ - if (upper_bound == 0) - { - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (jump, laststart, b + 1 - + OFFSET_ADDRESS_SIZE); - b += 1 + OFFSET_ADDRESS_SIZE; - } - - /* Otherwise, we have a nontrivial interval. When - we're all done, the pattern will look like: - set_number_at <jump count> <upper bound> - set_number_at <succeed_n count> <lower bound> - succeed_n <after jump addr> <succeed_n count> - <body of loop> - jump_n <succeed_n addr> <jump count> - (The upper bound and `jump_n' are omitted if - `upper_bound' is 1, though.) */ - else - { /* If the upper bound is > 1, we need to insert - more at the end of the loop. */ - unsigned nbytes = 2 + 4 * OFFSET_ADDRESS_SIZE + - (upper_bound > 1) * (2 + 4 * OFFSET_ADDRESS_SIZE); - - GET_BUFFER_SPACE (nbytes); - - /* Initialize lower bound of the `succeed_n', even - though it will be set during matching by its - attendant `set_number_at' (inserted next), - because `re_compile_fastmap' needs to know. - Jump to the `jump_n' we might insert below. */ - INSERT_JUMP2 (succeed_n, laststart, - b + 1 + 2 * OFFSET_ADDRESS_SIZE - + (upper_bound > 1) * (1 + 2 * OFFSET_ADDRESS_SIZE) - , lower_bound); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - - /* Code to initialize the lower bound. Insert - before the `succeed_n'. The `5' is the last two - bytes of this `set_number_at', plus 3 bytes of - the following `succeed_n'. */ - /* ifdef WCHAR, The '1+2*OFFSET_ADDRESS_SIZE' - is the 'set_number_at', plus '1+OFFSET_ADDRESS_SIZE' - of the following `succeed_n'. */ - PREFIX(insert_op2) (set_number_at, laststart, 1 - + 2 * OFFSET_ADDRESS_SIZE, lower_bound, b); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - - if (upper_bound > 1) - { /* More than one repetition is allowed, so - append a backward jump to the `succeed_n' - that starts this interval. - - When we've reached this during matching, - we'll have matched the interval once, so - jump back only `upper_bound - 1' times. */ - STORE_JUMP2 (jump_n, b, laststart - + 2 * OFFSET_ADDRESS_SIZE + 1, - upper_bound - 1); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - - /* The location we want to set is the second - parameter of the `jump_n'; that is `b-2' as - an absolute address. `laststart' will be - the `set_number_at' we're about to insert; - `laststart+3' the number to set, the source - for the relative address. But we are - inserting into the middle of the pattern -- - so everything is getting moved up by 5. - Conclusion: (b - 2) - (laststart + 3) + 5, - i.e., b - laststart. - - We insert this at the beginning of the loop - so that if we fail during matching, we'll - reinitialize the bounds. */ - PREFIX(insert_op2) (set_number_at, laststart, - b - laststart, - upper_bound - 1, b); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - } - } - pending_exact = 0; - break; - - invalid_interval: - if (!(syntax & RE_INVALID_INTERVAL_ORD)) - FREE_STACK_RETURN (p == pend ? REG_EBRACE : REG_BADBR); - unfetch_interval: - /* Match the characters as literals. */ - p = beg_interval; - c = '{'; - if (syntax & RE_NO_BK_BRACES) - goto normal_char; - else - goto normal_backslash; - } - -#ifdef emacs - /* There is no way to specify the before_dot and after_dot - operators. rms says this is ok. --karl */ - case '=': - BUF_PUSH (at_dot); - break; - - case 's': - laststart = b; - PATFETCH (c); - BUF_PUSH_2 (syntaxspec, syntax_spec_code[c]); - break; - - case 'S': - laststart = b; - PATFETCH (c); - BUF_PUSH_2 (notsyntaxspec, syntax_spec_code[c]); - break; -#endif /* emacs */ - - - case 'w': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - laststart = b; - BUF_PUSH (wordchar); - break; - - - case 'W': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - laststart = b; - BUF_PUSH (notwordchar); - break; - - - case '<': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (wordbeg); - break; - - case '>': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (wordend); - break; - - case 'b': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (wordbound); - break; - - case 'B': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (notwordbound); - break; - - case '`': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (begbuf); - break; - - case '\'': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (endbuf); - break; - - case '1': case '2': case '3': case '4': case '5': - case '6': case '7': case '8': case '9': - if (syntax & RE_NO_BK_REFS) - goto normal_char; - - c1 = c - '0'; - - if (c1 > regnum) - FREE_STACK_RETURN (REG_ESUBREG); - - /* Can't back reference to a subexpression if inside of it. */ - if (group_in_compile_stack (compile_stack, (regnum_t) c1)) - goto normal_char; - - laststart = b; - BUF_PUSH_2 (duplicate, c1); - break; - - - case '+': - case '?': - if (syntax & RE_BK_PLUS_QM) - goto handle_plus; - else - goto normal_backslash; - - default: - normal_backslash: - /* You might think it would be useful for \ to mean - not to translate; but if we don't translate it - it will never match anything. */ - c = TRANSLATE (c); - goto normal_char; - } - break; - - - default: - /* Expects the character in `c'. */ - normal_char: - /* If no exactn currently being built. */ - if (!pending_exact -#ifdef WCHAR - /* If last exactn handle binary(or character) and - new exactn handle character(or binary). */ - || is_exactn_bin != is_binary[p - 1 - pattern] -#endif /* WCHAR */ - - /* If last exactn not at current position. */ - || pending_exact + *pending_exact + 1 != b - - /* We have only one byte following the exactn for the count. */ - || *pending_exact == (1 << BYTEWIDTH) - 1 - - /* If followed by a repetition operator. */ - || *p == '*' || *p == '^' - || ((syntax & RE_BK_PLUS_QM) - ? *p == '\\' && (p[1] == '+' || p[1] == '?') - : (*p == '+' || *p == '?')) - || ((syntax & RE_INTERVALS) - && ((syntax & RE_NO_BK_BRACES) - ? *p == '{' - : (p[0] == '\\' && p[1] == '{')))) - { - /* Start building a new exactn. */ - - laststart = b; - -#ifdef WCHAR - /* Is this exactn binary data or character? */ - is_exactn_bin = is_binary[p - 1 - pattern]; - if (is_exactn_bin) - BUF_PUSH_2 (exactn_bin, 0); - else - BUF_PUSH_2 (exactn, 0); -#else - BUF_PUSH_2 (exactn, 0); -#endif /* WCHAR */ - pending_exact = b - 1; - } - - BUF_PUSH (c); - (*pending_exact)++; - break; - } /* switch (c) */ - } /* while p != pend */ - - - /* Through the pattern now. */ - - if (fixup_alt_jump) - STORE_JUMP (jump_past_alt, fixup_alt_jump, b); - - if (!COMPILE_STACK_EMPTY) - FREE_STACK_RETURN (REG_EPAREN); - - /* If we don't want backtracking, force success - the first time we reach the end of the compiled pattern. */ - if (syntax & RE_NO_POSIX_BACKTRACKING) - BUF_PUSH (succeed); - -#ifdef WCHAR - free (pattern); - free (mbs_offset); - free (is_binary); -#endif - free (compile_stack.stack); - - /* We have succeeded; set the length of the buffer. */ -#ifdef WCHAR - bufp->used = (uintptr_t) b - (uintptr_t) COMPILED_BUFFER_VAR; -#else - bufp->used = b - bufp->buffer; -#endif - -#ifdef DEBUG - if (debug) - { - DEBUG_PRINT1 ("\nCompiled pattern: \n"); - PREFIX(print_compiled_pattern) (bufp); - } -#endif /* DEBUG */ - -#ifndef MATCH_MAY_ALLOCATE - /* Initialize the failure stack to the largest possible stack. This - isn't necessary unless we're trying to avoid calling alloca in - the search and match routines. */ - { - int num_regs = bufp->re_nsub + 1; - - /* Since DOUBLE_FAIL_STACK refuses to double only if the current size - is strictly greater than re_max_failures, the largest possible stack - is 2 * re_max_failures failure points. */ - if (fail_stack.size < (2 * re_max_failures * MAX_FAILURE_ITEMS)) - { - fail_stack.size = (2 * re_max_failures * MAX_FAILURE_ITEMS); - -# ifdef emacs - if (! fail_stack.stack) - fail_stack.stack - = (PREFIX(fail_stack_elt_t) *) xmalloc (fail_stack.size - * sizeof (PREFIX(fail_stack_elt_t))); - else - fail_stack.stack - = (PREFIX(fail_stack_elt_t) *) xrealloc (fail_stack.stack, - (fail_stack.size - * sizeof (PREFIX(fail_stack_elt_t)))); -# else /* not emacs */ - if (! fail_stack.stack) - fail_stack.stack - = malloc (fail_stack.size * sizeof (PREFIX(fail_stack_elt_t))); - else - fail_stack.stack - = realloc (fail_stack.stack, - fail_stack.size * sizeof (PREFIX(fail_stack_elt_t))); -# endif /* not emacs */ - } - - PREFIX(regex_grow_registers) (num_regs); - } -#endif /* not MATCH_MAY_ALLOCATE */ - - return REG_NOERROR; -} /* regex_compile */ - -/* Subroutines for `regex_compile'. */ - -/* Store OP at LOC followed by two-byte integer parameter ARG. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(store_op1) (re_opcode_t op, UCHAR_T *loc, int arg) -{ - *loc = (UCHAR_T) op; - STORE_NUMBER (loc + 1, arg); -} - - -/* Like `store_op1', but for two two-byte parameters ARG1 and ARG2. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(store_op2) (re_opcode_t op, UCHAR_T *loc, int arg1, int arg2) -{ - *loc = (UCHAR_T) op; - STORE_NUMBER (loc + 1, arg1); - STORE_NUMBER (loc + 1 + OFFSET_ADDRESS_SIZE, arg2); -} - - -/* Copy the bytes from LOC to END to open up three bytes of space at LOC - for OP followed by two-byte integer parameter ARG. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(insert_op1) (re_opcode_t op, UCHAR_T *loc, int arg, UCHAR_T *end) -{ - register UCHAR_T *pfrom = end; - register UCHAR_T *pto = end + 1 + OFFSET_ADDRESS_SIZE; - - while (pfrom != loc) - *--pto = *--pfrom; - - PREFIX(store_op1) (op, loc, arg); -} - - -/* Like `insert_op1', but for two two-byte parameters ARG1 and ARG2. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(insert_op2) (re_opcode_t op, UCHAR_T *loc, int arg1, int arg2, - UCHAR_T *end) -{ - register UCHAR_T *pfrom = end; - register UCHAR_T *pto = end + 1 + 2 * OFFSET_ADDRESS_SIZE; - - while (pfrom != loc) - *--pto = *--pfrom; - - PREFIX(store_op2) (op, loc, arg1, arg2); -} - - -/* P points to just after a ^ in PATTERN. Return true if that ^ comes - after an alternative or a begin-subexpression. We assume there is at - least one character before the ^. */ - -static boolean -PREFIX(at_begline_loc_p) (const CHAR_T *pattern, const CHAR_T *p, - reg_syntax_t syntax) -{ - const CHAR_T *prev = p - 2; - boolean prev_prev_backslash = prev > pattern && prev[-1] == '\\'; - - return - /* After a subexpression? */ - (*prev == '(' && (syntax & RE_NO_BK_PARENS || prev_prev_backslash)) - /* After an alternative? */ - || (*prev == '|' && (syntax & RE_NO_BK_VBAR || prev_prev_backslash)); -} - - -/* The dual of at_begline_loc_p. This one is for $. We assume there is - at least one character after the $, i.e., `P < PEND'. */ - -static boolean -PREFIX(at_endline_loc_p) (const CHAR_T *p, const CHAR_T *pend, - reg_syntax_t syntax) -{ - const CHAR_T *next = p; - boolean next_backslash = *next == '\\'; - const CHAR_T *next_next = p + 1 < pend ? p + 1 : 0; - - return - /* Before a subexpression? */ - (syntax & RE_NO_BK_PARENS ? *next == ')' - : next_backslash && next_next && *next_next == ')') - /* Before an alternative? */ - || (syntax & RE_NO_BK_VBAR ? *next == '|' - : next_backslash && next_next && *next_next == '|'); -} - -#else /* not INSIDE_RECURSION */ - -/* Returns true if REGNUM is in one of COMPILE_STACK's elements and - false if it's not. */ - -static boolean -group_in_compile_stack (compile_stack_type compile_stack, - regnum_t regnum) -{ - int this_element; - - for (this_element = compile_stack.avail - 1; - this_element >= 0; - this_element--) - if (compile_stack.stack[this_element].regnum == regnum) - return true; - - return false; -} -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION - -#ifdef WCHAR -/* This insert space, which size is "num", into the pattern at "loc". - "end" must point the end of the allocated buffer. */ -static void -insert_space (int num, CHAR_T *loc, CHAR_T *end) -{ - register CHAR_T *pto = end; - register CHAR_T *pfrom = end - num; - - while (pfrom >= loc) - *pto-- = *pfrom--; -} -#endif /* WCHAR */ - -#ifdef WCHAR -static reg_errcode_t -wcs_compile_range (CHAR_T range_start_char, - const CHAR_T **p_ptr, const CHAR_T *pend, - RE_TRANSLATE_TYPE translate, reg_syntax_t syntax, - CHAR_T *b, CHAR_T *char_set) -{ - const CHAR_T *p = *p_ptr; - CHAR_T range_start, range_end; - reg_errcode_t ret; -# ifdef _LIBC - uint32_t nrules; - uint32_t start_val, end_val; -# endif - if (p == pend) - return REG_ERANGE; - -# ifdef _LIBC - nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); - if (nrules != 0) - { - const char *collseq = (const char *) _NL_CURRENT(LC_COLLATE, - _NL_COLLATE_COLLSEQWC); - const unsigned char *extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB); - - if (range_start_char < -1) - { - /* range_start is a collating symbol. */ - int32_t *wextra; - /* Retreive the index and get collation sequence value. */ - wextra = (int32_t*)(extra + char_set[-range_start_char]); - start_val = wextra[1 + *wextra]; - } - else - start_val = collseq_table_lookup(collseq, TRANSLATE(range_start_char)); - - end_val = collseq_table_lookup (collseq, TRANSLATE (p[0])); - - /* Report an error if the range is empty and the syntax prohibits - this. */ - ret = ((syntax & RE_NO_EMPTY_RANGES) - && (start_val > end_val))? REG_ERANGE : REG_NOERROR; - - /* Insert space to the end of the char_ranges. */ - insert_space(2, b - char_set[5] - 2, b - 1); - *(b - char_set[5] - 2) = (wchar_t)start_val; - *(b - char_set[5] - 1) = (wchar_t)end_val; - char_set[4]++; /* ranges_index */ - } - else -# endif - { - range_start = (range_start_char >= 0)? TRANSLATE (range_start_char): - range_start_char; - range_end = TRANSLATE (p[0]); - /* Report an error if the range is empty and the syntax prohibits - this. */ - ret = ((syntax & RE_NO_EMPTY_RANGES) - && (range_start > range_end))? REG_ERANGE : REG_NOERROR; - - /* Insert space to the end of the char_ranges. */ - insert_space(2, b - char_set[5] - 2, b - 1); - *(b - char_set[5] - 2) = range_start; - *(b - char_set[5] - 1) = range_end; - char_set[4]++; /* ranges_index */ - } - /* Have to increment the pointer into the pattern string, so the - caller isn't still at the ending character. */ - (*p_ptr)++; - - return ret; -} -#else /* BYTE */ -/* Read the ending character of a range (in a bracket expression) from the - uncompiled pattern *P_PTR (which ends at PEND). We assume the - starting character is in `P[-2]'. (`P[-1]' is the character `-'.) - Then we set the translation of all bits between the starting and - ending characters (inclusive) in the compiled pattern B. - - Return an error code. - - We use these short variable names so we can use the same macros as - `regex_compile' itself. */ - -static reg_errcode_t -byte_compile_range (unsigned int range_start_char, - const char **p_ptr, const char *pend, - RE_TRANSLATE_TYPE translate, reg_syntax_t syntax, - unsigned char *b) -{ - unsigned this_char; - const char *p = *p_ptr; - reg_errcode_t ret; -# if _LIBC - const unsigned char *collseq; - unsigned int start_colseq; - unsigned int end_colseq; -# else - unsigned end_char; -# endif - - if (p == pend) - return REG_ERANGE; - - /* Have to increment the pointer into the pattern string, so the - caller isn't still at the ending character. */ - (*p_ptr)++; - - /* Report an error if the range is empty and the syntax prohibits this. */ - ret = syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR; - -# if _LIBC - collseq = (const unsigned char *) _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_COLLSEQMB); - - start_colseq = collseq[(unsigned char) TRANSLATE (range_start_char)]; - end_colseq = collseq[(unsigned char) TRANSLATE (p[0])]; - for (this_char = 0; this_char <= (unsigned char) -1; ++this_char) - { - unsigned int this_colseq = collseq[(unsigned char) TRANSLATE (this_char)]; - - if (start_colseq <= this_colseq && this_colseq <= end_colseq) - { - SET_LIST_BIT (TRANSLATE (this_char)); - ret = REG_NOERROR; - } - } -# else - /* Here we see why `this_char' has to be larger than an `unsigned - char' -- we would otherwise go into an infinite loop, since all - characters <= 0xff. */ - range_start_char = TRANSLATE (range_start_char); - /* TRANSLATE(p[0]) is casted to char (not unsigned char) in TRANSLATE, - and some compilers cast it to int implicitly, so following for_loop - may fall to (almost) infinite loop. - e.g. If translate[p[0]] = 0xff, end_char may equals to 0xffffffff. - To avoid this, we cast p[0] to unsigned int and truncate it. */ - end_char = ((unsigned)TRANSLATE(p[0]) & ((1 << BYTEWIDTH) - 1)); - - for (this_char = range_start_char; this_char <= end_char; ++this_char) - { - SET_LIST_BIT (TRANSLATE (this_char)); - ret = REG_NOERROR; - } -# endif - - return ret; -} -#endif /* WCHAR */ - -/* re_compile_fastmap computes a ``fastmap'' for the compiled pattern in - BUFP. A fastmap records which of the (1 << BYTEWIDTH) possible - characters can start a string that matches the pattern. This fastmap - is used by re_search to skip quickly over impossible starting points. - - The caller must supply the address of a (1 << BYTEWIDTH)-byte data - area as BUFP->fastmap. - - We set the `fastmap', `fastmap_accurate', and `can_be_null' fields in - the pattern buffer. - - Returns 0 if we succeed, -2 if an internal error. */ - -#ifdef WCHAR -/* local function for re_compile_fastmap. - truncate wchar_t character to char. */ - -static unsigned char -truncate_wchar (CHAR_T c) -{ - unsigned char buf[MB_CUR_MAX]; - mbstate_t state; - int retval; - memset (&state, '\0', sizeof (state)); - retval = wcrtomb (buf, c, &state); - return retval > 0 ? buf[0] : (unsigned char) c; -} -#endif /* WCHAR */ - -static int -PREFIX(re_compile_fastmap) (struct re_pattern_buffer *bufp) -{ - int j, k; -#ifdef MATCH_MAY_ALLOCATE - PREFIX(fail_stack_type) fail_stack; -#endif -#ifndef REGEX_MALLOC - char *destination; -#endif - - register char *fastmap = bufp->fastmap; - -#ifdef WCHAR - /* We need to cast pattern to (wchar_t*), because we casted this compiled - pattern to (char*) in regex_compile. */ - UCHAR_T *pattern = (UCHAR_T*)bufp->buffer; - register UCHAR_T *pend = (UCHAR_T*) (bufp->buffer + bufp->used); -#else /* BYTE */ - UCHAR_T *pattern = bufp->buffer; - register UCHAR_T *pend = pattern + bufp->used; -#endif /* WCHAR */ - UCHAR_T *p = pattern; - -#ifdef REL_ALLOC - /* This holds the pointer to the failure stack, when - it is allocated relocatably. */ - fail_stack_elt_t *failure_stack_ptr; -#endif - - /* Assume that each path through the pattern can be null until - proven otherwise. We set this false at the bottom of switch - statement, to which we get only if a particular path doesn't - match the empty string. */ - boolean path_can_be_null = true; - - /* We aren't doing a `succeed_n' to begin with. */ - boolean succeed_n_p = false; - - assert (fastmap != NULL && p != NULL); - - INIT_FAIL_STACK (); - bzero (fastmap, 1 << BYTEWIDTH); /* Assume nothing's valid. */ - bufp->fastmap_accurate = 1; /* It will be when we're done. */ - bufp->can_be_null = 0; - - while (1) - { - if (p == pend || *p == succeed) - { - /* We have reached the (effective) end of pattern. */ - if (!FAIL_STACK_EMPTY ()) - { - bufp->can_be_null |= path_can_be_null; - - /* Reset for next path. */ - path_can_be_null = true; - - p = fail_stack.stack[--fail_stack.avail].pointer; - - continue; - } - else - break; - } - - /* We should never be about to go beyond the end of the pattern. */ - assert (p < pend); - - switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++)) - { - - /* I guess the idea here is to simply not bother with a fastmap - if a backreference is used, since it's too hard to figure out - the fastmap for the corresponding group. Setting - `can_be_null' stops `re_search_2' from using the fastmap, so - that is all we do. */ - case duplicate: - bufp->can_be_null = 1; - goto done; - - - /* Following are the cases which match a character. These end - with `break'. */ - -#ifdef WCHAR - case exactn: - fastmap[truncate_wchar(p[1])] = 1; - break; -#else /* BYTE */ - case exactn: - fastmap[p[1]] = 1; - break; -#endif /* WCHAR */ -#ifdef MBS_SUPPORT - case exactn_bin: - fastmap[p[1]] = 1; - break; -#endif - -#ifdef WCHAR - /* It is hard to distinguish fastmap from (multi byte) characters - which depends on current locale. */ - case charset: - case charset_not: - case wordchar: - case notwordchar: - bufp->can_be_null = 1; - goto done; -#else /* BYTE */ - case charset: - for (j = *p++ * BYTEWIDTH - 1; j >= 0; j--) - if (p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH))) - fastmap[j] = 1; - break; - - - case charset_not: - /* Chars beyond end of map must be allowed. */ - for (j = *p * BYTEWIDTH; j < (1 << BYTEWIDTH); j++) - fastmap[j] = 1; - - for (j = *p++ * BYTEWIDTH - 1; j >= 0; j--) - if (!(p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH)))) - fastmap[j] = 1; - break; - - - case wordchar: - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) == Sword) - fastmap[j] = 1; - break; - - - case notwordchar: - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) != Sword) - fastmap[j] = 1; - break; -#endif /* WCHAR */ - - case anychar: - { - int fastmap_newline = fastmap['\n']; - - /* `.' matches anything ... */ - for (j = 0; j < (1 << BYTEWIDTH); j++) - fastmap[j] = 1; - - /* ... except perhaps newline. */ - if (!(bufp->syntax & RE_DOT_NEWLINE)) - fastmap['\n'] = fastmap_newline; - - /* Return if we have already set `can_be_null'; if we have, - then the fastmap is irrelevant. Something's wrong here. */ - else if (bufp->can_be_null) - goto done; - - /* Otherwise, have to check alternative paths. */ - break; - } - -#ifdef emacs - case syntaxspec: - k = *p++; - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) == (enum syntaxcode) k) - fastmap[j] = 1; - break; - - - case notsyntaxspec: - k = *p++; - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) != (enum syntaxcode) k) - fastmap[j] = 1; - break; - - - /* All cases after this match the empty string. These end with - `continue'. */ - - - case before_dot: - case at_dot: - case after_dot: - continue; -#endif /* emacs */ - - - case no_op: - case begline: - case endline: - case begbuf: - case endbuf: - case wordbound: - case notwordbound: - case wordbeg: - case wordend: - case push_dummy_failure: - continue; - - - case jump_n: - case pop_failure_jump: - case maybe_pop_jump: - case jump: - case jump_past_alt: - case dummy_failure_jump: - EXTRACT_NUMBER_AND_INCR (j, p); - p += j; - if (j > 0) - continue; - - /* Jump backward implies we just went through the body of a - loop and matched nothing. Opcode jumped to should be - `on_failure_jump' or `succeed_n'. Just treat it like an - ordinary jump. For a * loop, it has pushed its failure - point already; if so, discard that as redundant. */ - if ((re_opcode_t) *p != on_failure_jump - && (re_opcode_t) *p != succeed_n) - continue; - - p++; - EXTRACT_NUMBER_AND_INCR (j, p); - p += j; - - /* If what's on the stack is where we are now, pop it. */ - if (!FAIL_STACK_EMPTY () - && fail_stack.stack[fail_stack.avail - 1].pointer == p) - fail_stack.avail--; - - continue; - - - case on_failure_jump: - case on_failure_keep_string_jump: - handle_on_failure_jump: - EXTRACT_NUMBER_AND_INCR (j, p); - - /* For some patterns, e.g., `(a?)?', `p+j' here points to the - end of the pattern. We don't want to push such a point, - since when we restore it above, entering the switch will - increment `p' past the end of the pattern. We don't need - to push such a point since we obviously won't find any more - fastmap entries beyond `pend'. Such a pattern can match - the null string, though. */ - if (p + j < pend) - { - if (!PUSH_PATTERN_OP (p + j, fail_stack)) - { - RESET_FAIL_STACK (); - return -2; - } - } - else - bufp->can_be_null = 1; - - if (succeed_n_p) - { - EXTRACT_NUMBER_AND_INCR (k, p); /* Skip the n. */ - succeed_n_p = false; - } - - continue; - - - case succeed_n: - /* Get to the number of times to succeed. */ - p += OFFSET_ADDRESS_SIZE; - - /* Increment p past the n for when k != 0. */ - EXTRACT_NUMBER_AND_INCR (k, p); - if (k == 0) - { - p -= 2 * OFFSET_ADDRESS_SIZE; - succeed_n_p = true; /* Spaghetti code alert. */ - goto handle_on_failure_jump; - } - continue; - - - case set_number_at: - p += 2 * OFFSET_ADDRESS_SIZE; - continue; - - - case start_memory: - case stop_memory: - p += 2; - continue; - - - default: - abort (); /* We have listed all the cases. */ - } /* switch *p++ */ - - /* Getting here means we have found the possible starting - characters for one path of the pattern -- and that the empty - string does not match. We need not follow this path further. - Instead, look at the next alternative (remembered on the - stack), or quit if no more. The test at the top of the loop - does these things. */ - path_can_be_null = false; - p = pend; - } /* while p */ - - /* Set `can_be_null' for the last path (also the first path, if the - pattern is empty). */ - bufp->can_be_null |= path_can_be_null; - - done: - RESET_FAIL_STACK (); - return 0; -} - -#else /* not INSIDE_RECURSION */ - -int -re_compile_fastmap (struct re_pattern_buffer *bufp) -{ -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - return wcs_re_compile_fastmap(bufp); - else -# endif - return byte_re_compile_fastmap(bufp); -} /* re_compile_fastmap */ -#ifdef _LIBC -weak_alias (__re_compile_fastmap, re_compile_fastmap) -#endif - - -/* Set REGS to hold NUM_REGS registers, storing them in STARTS and - ENDS. Subsequent matches using PATTERN_BUFFER and REGS will use - this memory for recording register information. STARTS and ENDS - must be allocated using the malloc library routine, and must each - be at least NUM_REGS * sizeof (regoff_t) bytes long. - - If NUM_REGS == 0, then subsequent matches should allocate their own - register data. - - Unless this function is called, the first search or match using - PATTERN_BUFFER will allocate its own register data, without - freeing the old data. */ - -void -re_set_registers (struct re_pattern_buffer *bufp, - struct re_registers *regs, - unsigned int num_regs, - regoff_t *starts, regoff_t *ends) -{ - if (num_regs) - { - bufp->regs_allocated = REGS_REALLOCATE; - regs->num_regs = num_regs; - regs->start = starts; - regs->end = ends; - } - else - { - bufp->regs_allocated = REGS_UNALLOCATED; - regs->num_regs = 0; - regs->start = regs->end = (regoff_t *) 0; - } -} -#ifdef _LIBC -weak_alias (__re_set_registers, re_set_registers) -#endif - -/* Searching routines. */ - -/* Like re_search_2, below, but only one string is specified, and - doesn't let you say where to stop matching. */ - -int -re_search (struct re_pattern_buffer *bufp, - const char *string, - int size, int startpos, int range, - struct re_registers *regs) -{ - return re_search_2 (bufp, NULL, 0, string, size, startpos, range, - regs, size); -} -#ifdef _LIBC -weak_alias (__re_search, re_search) -#endif - - -/* Using the compiled pattern in BUFP->buffer, first tries to match the - virtual concatenation of STRING1 and STRING2, starting first at index - STARTPOS, then at STARTPOS + 1, and so on. - - STRING1 and STRING2 have length SIZE1 and SIZE2, respectively. - - RANGE is how far to scan while trying to match. RANGE = 0 means try - only at STARTPOS; in general, the last start tried is STARTPOS + - RANGE. - - In REGS, return the indices of the virtual concatenation of STRING1 - and STRING2 that matched the entire BUFP->buffer and its contained - subexpressions. - - Do not consider matching one past the index STOP in the virtual - concatenation of STRING1 and STRING2. - - We return either the position in the strings at which the match was - found, -1 if no match, or -2 if error (such as failure - stack overflow). */ - -int -re_search_2 (struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int startpos, int range, - struct re_registers *regs, - int stop) -{ -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - return wcs_re_search_2 (bufp, string1, size1, string2, size2, startpos, - range, regs, stop); - else -# endif - return byte_re_search_2 (bufp, string1, size1, string2, size2, startpos, - range, regs, stop); -} /* re_search_2 */ -#ifdef _LIBC -weak_alias (__re_search_2, re_search_2) -#endif - -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION - -#ifdef MATCH_MAY_ALLOCATE -# define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL -#else -# define FREE_VAR(var) if (var) free (var); var = NULL -#endif - -#ifdef WCHAR -# define MAX_ALLOCA_SIZE 2000 - -# define FREE_WCS_BUFFERS() \ - do { \ - if (size1 > MAX_ALLOCA_SIZE) \ - { \ - free (wcs_string1); \ - free (mbs_offset1); \ - } \ - else \ - { \ - FREE_VAR (wcs_string1); \ - FREE_VAR (mbs_offset1); \ - } \ - if (size2 > MAX_ALLOCA_SIZE) \ - { \ - free (wcs_string2); \ - free (mbs_offset2); \ - } \ - else \ - { \ - FREE_VAR (wcs_string2); \ - FREE_VAR (mbs_offset2); \ - } \ - } while (0) - -#endif - - -static int -PREFIX(re_search_2) (struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int startpos, int range, - struct re_registers *regs, - int stop) -{ - int val; - register char *fastmap = bufp->fastmap; - register RE_TRANSLATE_TYPE translate = bufp->translate; - int total_size = size1 + size2; - int endpos = startpos + range; -#ifdef WCHAR - /* We need wchar_t* buffers correspond to cstring1, cstring2. */ - wchar_t *wcs_string1 = NULL, *wcs_string2 = NULL; - /* We need the size of wchar_t buffers correspond to csize1, csize2. */ - int wcs_size1 = 0, wcs_size2 = 0; - /* offset buffer for optimizatoin. See convert_mbs_to_wc. */ - int *mbs_offset1 = NULL, *mbs_offset2 = NULL; - /* They hold whether each wchar_t is binary data or not. */ - char *is_binary = NULL; -#endif /* WCHAR */ - - /* Check for out-of-range STARTPOS. */ - if (startpos < 0 || startpos > total_size) - return -1; - - /* Fix up RANGE if it might eventually take us outside - the virtual concatenation of STRING1 and STRING2. - Make sure we won't move STARTPOS below 0 or above TOTAL_SIZE. */ - if (endpos < 0) - range = 0 - startpos; - else if (endpos > total_size) - range = total_size - startpos; - - /* If the search isn't to be a backwards one, don't waste time in a - search for a pattern that must be anchored. */ - if (bufp->used > 0 && range > 0 - && ((re_opcode_t) bufp->buffer[0] == begbuf - /* `begline' is like `begbuf' if it cannot match at newlines. */ - || ((re_opcode_t) bufp->buffer[0] == begline - && !bufp->newline_anchor))) - { - if (startpos > 0) - return -1; - else - range = 1; - } - -#ifdef emacs - /* In a forward search for something that starts with \=. - don't keep searching past point. */ - if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == at_dot && range > 0) - { - range = PT - startpos; - if (range <= 0) - return -1; - } -#endif /* emacs */ - - /* Update the fastmap now if not correct already. */ - if (fastmap && !bufp->fastmap_accurate) - if (re_compile_fastmap (bufp) == -2) - return -2; - -#ifdef WCHAR - /* Allocate wchar_t array for wcs_string1 and wcs_string2 and - fill them with converted string. */ - if (size1 != 0) - { - if (size1 > MAX_ALLOCA_SIZE) - { - wcs_string1 = TALLOC (size1 + 1, CHAR_T); - mbs_offset1 = TALLOC (size1 + 1, int); - is_binary = TALLOC (size1 + 1, char); - } - else - { - wcs_string1 = REGEX_TALLOC (size1 + 1, CHAR_T); - mbs_offset1 = REGEX_TALLOC (size1 + 1, int); - is_binary = REGEX_TALLOC (size1 + 1, char); - } - if (!wcs_string1 || !mbs_offset1 || !is_binary) - { - if (size1 > MAX_ALLOCA_SIZE) - { - free (wcs_string1); - free (mbs_offset1); - free (is_binary); - } - else - { - FREE_VAR (wcs_string1); - FREE_VAR (mbs_offset1); - FREE_VAR (is_binary); - } - return -2; - } - wcs_size1 = convert_mbs_to_wcs(wcs_string1, string1, size1, - mbs_offset1, is_binary); - wcs_string1[wcs_size1] = L'\0'; /* for a sentinel */ - if (size1 > MAX_ALLOCA_SIZE) - free (is_binary); - else - FREE_VAR (is_binary); - } - if (size2 != 0) - { - if (size2 > MAX_ALLOCA_SIZE) - { - wcs_string2 = TALLOC (size2 + 1, CHAR_T); - mbs_offset2 = TALLOC (size2 + 1, int); - is_binary = TALLOC (size2 + 1, char); - } - else - { - wcs_string2 = REGEX_TALLOC (size2 + 1, CHAR_T); - mbs_offset2 = REGEX_TALLOC (size2 + 1, int); - is_binary = REGEX_TALLOC (size2 + 1, char); - } - if (!wcs_string2 || !mbs_offset2 || !is_binary) - { - FREE_WCS_BUFFERS (); - if (size2 > MAX_ALLOCA_SIZE) - free (is_binary); - else - FREE_VAR (is_binary); - return -2; - } - wcs_size2 = convert_mbs_to_wcs(wcs_string2, string2, size2, - mbs_offset2, is_binary); - wcs_string2[wcs_size2] = L'\0'; /* for a sentinel */ - if (size2 > MAX_ALLOCA_SIZE) - free (is_binary); - else - FREE_VAR (is_binary); - } -#endif /* WCHAR */ - - - /* Loop through the string, looking for a place to start matching. */ - for (;;) - { - /* If a fastmap is supplied, skip quickly over characters that - cannot be the start of a match. If the pattern can match the - null string, however, we don't need to skip characters; we want - the first null string. */ - if (fastmap && startpos < total_size && !bufp->can_be_null) - { - if (range > 0) /* Searching forwards. */ - { - register const char *d; - register int lim = 0; - int irange = range; - - if (startpos < size1 && startpos + range >= size1) - lim = range - (size1 - startpos); - - d = (startpos >= size1 ? string2 - size1 : string1) + startpos; - - /* Written out as an if-else to avoid testing `translate' - inside the loop. */ - if (translate) - while (range > lim - && !fastmap[(unsigned char) - translate[(unsigned char) *d++]]) - range--; - else - while (range > lim && !fastmap[(unsigned char) *d++]) - range--; - - startpos += irange - range; - } - else /* Searching backwards. */ - { - register CHAR_T c = (size1 == 0 || startpos >= size1 - ? string2[startpos - size1] - : string1[startpos]); - - if (!fastmap[(unsigned char) TRANSLATE (c)]) - goto advance; - } - } - - /* If can't match the null string, and that's all we have left, fail. */ - if (range >= 0 && startpos == total_size && fastmap - && !bufp->can_be_null) - { -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return -1; - } - -#ifdef WCHAR - val = wcs_re_match_2_internal (bufp, string1, size1, string2, - size2, startpos, regs, stop, - wcs_string1, wcs_size1, - wcs_string2, wcs_size2, - mbs_offset1, mbs_offset2); -#else /* BYTE */ - val = byte_re_match_2_internal (bufp, string1, size1, string2, - size2, startpos, regs, stop); -#endif /* BYTE */ - -#ifndef REGEX_MALLOC -# ifdef C_ALLOCA - alloca (0); -# endif -#endif - - if (val >= 0) - { -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return startpos; - } - - if (val == -2) - { -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return -2; - } - - advance: - if (!range) - break; - else if (range > 0) - { - range--; - startpos++; - } - else - { - range++; - startpos--; - } - } -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return -1; -} - -#ifdef WCHAR -/* This converts PTR, a pointer into one of the search wchar_t strings - `string1' and `string2' into an multibyte string offset from the - beginning of that string. We use mbs_offset to optimize. - See convert_mbs_to_wcs. */ -# define POINTER_TO_OFFSET(ptr) \ - (FIRST_STRING_P (ptr) \ - ? ((regoff_t)(mbs_offset1 != NULL? mbs_offset1[(ptr)-string1] : 0)) \ - : ((regoff_t)((mbs_offset2 != NULL? mbs_offset2[(ptr)-string2] : 0) \ - + csize1))) -#else /* BYTE */ -/* This converts PTR, a pointer into one of the search strings `string1' - and `string2' into an offset from the beginning of that string. */ -# define POINTER_TO_OFFSET(ptr) \ - (FIRST_STRING_P (ptr) \ - ? ((regoff_t) ((ptr) - string1)) \ - : ((regoff_t) ((ptr) - string2 + size1))) -#endif /* WCHAR */ - -/* Macros for dealing with the split strings in re_match_2. */ - -#define MATCHING_IN_FIRST_STRING (dend == end_match_1) - -/* Call before fetching a character with *d. This switches over to - string2 if necessary. */ -#define PREFETCH() \ - while (d == dend) \ - { \ - /* End of string2 => fail. */ \ - if (dend == end_match_2) \ - goto fail; \ - /* End of string1 => advance to string2. */ \ - d = string2; \ - dend = end_match_2; \ - } - -/* Test if at very beginning or at very end of the virtual concatenation - of `string1' and `string2'. If only one string, it's `string2'. */ -#define AT_STRINGS_BEG(d) ((d) == (size1 ? string1 : string2) || !size2) -#define AT_STRINGS_END(d) ((d) == end2) - - -/* Test if D points to a character which is word-constituent. We have - two special cases to check for: if past the end of string1, look at - the first character in string2; and if before the beginning of - string2, look at the last character in string1. */ -#ifdef WCHAR -/* Use internationalized API instead of SYNTAX. */ -# define WORDCHAR_P(d) \ - (iswalnum ((wint_t)((d) == end1 ? *string2 \ - : (d) == string2 - 1 ? *(end1 - 1) : *(d))) != 0 \ - || ((d) == end1 ? *string2 \ - : (d) == string2 - 1 ? *(end1 - 1) : *(d)) == L'_') -#else /* BYTE */ -# define WORDCHAR_P(d) \ - (SYNTAX ((d) == end1 ? *string2 \ - : (d) == string2 - 1 ? *(end1 - 1) : *(d)) \ - == Sword) -#endif /* WCHAR */ - -/* Disabled due to a compiler bug -- see comment at case wordbound */ -#if 0 -/* Test if the character before D and the one at D differ with respect - to being word-constituent. */ -#define AT_WORD_BOUNDARY(d) \ - (AT_STRINGS_BEG (d) || AT_STRINGS_END (d) \ - || WORDCHAR_P (d - 1) != WORDCHAR_P (d)) -#endif - -/* Free everything we malloc. */ -#ifdef MATCH_MAY_ALLOCATE -# ifdef WCHAR -# define FREE_VARIABLES() \ - do { \ - REGEX_FREE_STACK (fail_stack.stack); \ - FREE_VAR (regstart); \ - FREE_VAR (regend); \ - FREE_VAR (old_regstart); \ - FREE_VAR (old_regend); \ - FREE_VAR (best_regstart); \ - FREE_VAR (best_regend); \ - FREE_VAR (reg_info); \ - FREE_VAR (reg_dummy); \ - FREE_VAR (reg_info_dummy); \ - if (!cant_free_wcs_buf) \ - { \ - FREE_VAR (string1); \ - FREE_VAR (string2); \ - FREE_VAR (mbs_offset1); \ - FREE_VAR (mbs_offset2); \ - } \ - } while (0) -# else /* BYTE */ -# define FREE_VARIABLES() \ - do { \ - REGEX_FREE_STACK (fail_stack.stack); \ - FREE_VAR (regstart); \ - FREE_VAR (regend); \ - FREE_VAR (old_regstart); \ - FREE_VAR (old_regend); \ - FREE_VAR (best_regstart); \ - FREE_VAR (best_regend); \ - FREE_VAR (reg_info); \ - FREE_VAR (reg_dummy); \ - FREE_VAR (reg_info_dummy); \ - } while (0) -# endif /* WCHAR */ -#else -# ifdef WCHAR -# define FREE_VARIABLES() \ - do { \ - if (!cant_free_wcs_buf) \ - { \ - FREE_VAR (string1); \ - FREE_VAR (string2); \ - FREE_VAR (mbs_offset1); \ - FREE_VAR (mbs_offset2); \ - } \ - } while (0) -# else /* BYTE */ -# define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */ -# endif /* WCHAR */ -#endif /* not MATCH_MAY_ALLOCATE */ - -/* These values must meet several constraints. They must not be valid - register values; since we have a limit of 255 registers (because - we use only one byte in the pattern for the register number), we can - use numbers larger than 255. They must differ by 1, because of - NUM_FAILURE_ITEMS above. And the value for the lowest register must - be larger than the value for the highest register, so we do not try - to actually save any registers when none are active. */ -#define NO_HIGHEST_ACTIVE_REG (1 << BYTEWIDTH) -#define NO_LOWEST_ACTIVE_REG (NO_HIGHEST_ACTIVE_REG + 1) - -#else /* not INSIDE_RECURSION */ -/* Matching routines. */ - -#ifndef emacs /* Emacs never uses this. */ -/* re_match is like re_match_2 except it takes only a single string. */ - -int -re_match (struct re_pattern_buffer *bufp, - const char *string, - int size, int pos, - struct re_registers *regs) -{ - int result; -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - result = wcs_re_match_2_internal (bufp, NULL, 0, string, size, - pos, regs, size, - NULL, 0, NULL, 0, NULL, NULL); - else -# endif - result = byte_re_match_2_internal (bufp, NULL, 0, string, size, - pos, regs, size); -# ifndef REGEX_MALLOC -# ifdef C_ALLOCA - alloca (0); -# endif -# endif - return result; -} -# ifdef _LIBC -weak_alias (__re_match, re_match) -# endif -#endif /* not emacs */ - -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION -static boolean PREFIX(group_match_null_string_p) (UCHAR_T **p, - UCHAR_T *end, - PREFIX(register_info_type) *reg_info); -static boolean PREFIX(alt_match_null_string_p) (UCHAR_T *p, - UCHAR_T *end, - PREFIX(register_info_type) *reg_info); -static boolean PREFIX(common_op_match_null_string_p) (UCHAR_T **p, - UCHAR_T *end, - PREFIX(register_info_type) *reg_info); -static int PREFIX(bcmp_translate) (const CHAR_T *s1, const CHAR_T *s2, - int len, char *translate); -#else /* not INSIDE_RECURSION */ - -/* re_match_2 matches the compiled pattern in BUFP against the - the (virtual) concatenation of STRING1 and STRING2 (of length SIZE1 - and SIZE2, respectively). We start matching at POS, and stop - matching at STOP. - - If REGS is non-null and the `no_sub' field of BUFP is nonzero, we - store offsets for the substring each group matched in REGS. See the - documentation for exactly how many groups we fill. - - We return -1 if no match, -2 if an internal error (such as the - failure stack overflowing). Otherwise, we return the length of the - matched substring. */ - -int -re_match_2 (struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int pos, struct re_registers *regs, - int stop) -{ - int result; -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - result = wcs_re_match_2_internal (bufp, string1, size1, string2, size2, - pos, regs, stop, - NULL, 0, NULL, 0, NULL, NULL); - else -# endif - result = byte_re_match_2_internal (bufp, string1, size1, string2, size2, - pos, regs, stop); - -#ifndef REGEX_MALLOC -# ifdef C_ALLOCA - alloca (0); -# endif -#endif - return result; -} -#ifdef _LIBC -weak_alias (__re_match_2, re_match_2) -#endif - -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION - -#ifdef WCHAR - -/* This check the substring (from 0, to length) of the multibyte string, - to which offset_buffer correspond. And count how many wchar_t_characters - the substring occupy. We use offset_buffer to optimization. - See convert_mbs_to_wcs. */ - -static int -count_mbs_length (int *offset_buffer, int length) -{ - int upper, lower; - - /* Check whether the size is valid. */ - if (length < 0) - return -1; - - if (offset_buffer == NULL) - return 0; - - /* If there are no multibyte character, offset_buffer[i] == i. - Optmize for this case. */ - if (offset_buffer[length] == length) - return length; - - /* Set up upper with length. (because for all i, offset_buffer[i] >= i) */ - upper = length; - lower = 0; - - while (true) - { - int middle = (lower + upper) / 2; - if (middle == lower || middle == upper) - break; - if (offset_buffer[middle] > length) - upper = middle; - else if (offset_buffer[middle] < length) - lower = middle; - else - return middle; - } - - return -1; -} -#endif /* WCHAR */ - -/* This is a separate function so that we can force an alloca cleanup - afterwards. */ -#ifdef WCHAR -static int -wcs_re_match_2_internal (struct re_pattern_buffer *bufp, - const char *cstring1, int csize1, - const char *cstring2, int csize2, - int pos, - struct re_registers *regs, - int stop, - /* string1 == string2 == NULL means - string1/2, size1/2 and mbs_offset1/2 need - setting up in this function. */ - /* We need wchar_t * buffers corresponding to - cstring1, cstring2. */ - wchar_t *string1, int size1, - wchar_t *string2, int size2, - /* Offset buffer for optimization. See - convert_mbs_to_wc. */ - int *mbs_offset1, - int *mbs_offset2) -#else /* BYTE */ -static int -byte_re_match_2_internal (struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int pos, - struct re_registers *regs, - int stop) -#endif /* BYTE */ -{ - /* General temporaries. */ - int mcnt; - UCHAR_T *p1; -#ifdef WCHAR - /* They hold whether each wchar_t is binary data or not. */ - char *is_binary = NULL; - /* If true, we can't free string1/2, mbs_offset1/2. */ - int cant_free_wcs_buf = 1; -#endif /* WCHAR */ - - /* Just past the end of the corresponding string. */ - const CHAR_T *end1, *end2; - - /* Pointers into string1 and string2, just past the last characters in - each to consider matching. */ - const CHAR_T *end_match_1, *end_match_2; - - /* Where we are in the data, and the end of the current string. */ - const CHAR_T *d, *dend; - - /* Where we are in the pattern, and the end of the pattern. */ -#ifdef WCHAR - UCHAR_T *pattern, *p; - register UCHAR_T *pend; -#else /* BYTE */ - UCHAR_T *p = bufp->buffer; - register UCHAR_T *pend = p + bufp->used; -#endif /* WCHAR */ - - /* Mark the opcode just after a start_memory, so we can test for an - empty subpattern when we get to the stop_memory. */ - UCHAR_T *just_past_start_mem = 0; - - /* We use this to map every character in the string. */ - RE_TRANSLATE_TYPE translate = bufp->translate; - - /* Failure point stack. Each place that can handle a failure further - down the line pushes a failure point on this stack. It consists of - restart, regend, and reg_info for all registers corresponding to - the subexpressions we're currently inside, plus the number of such - registers, and, finally, two char *'s. The first char * is where - to resume scanning the pattern; the second one is where to resume - scanning the strings. If the latter is zero, the failure point is - a ``dummy''; if a failure happens and the failure point is a dummy, - it gets discarded and the next next one is tried. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */ - PREFIX(fail_stack_type) fail_stack; -#endif -#ifdef DEBUG - static unsigned failure_id; - unsigned nfailure_points_pushed = 0, nfailure_points_popped = 0; -#endif - -#ifdef REL_ALLOC - /* This holds the pointer to the failure stack, when - it is allocated relocatably. */ - fail_stack_elt_t *failure_stack_ptr; -#endif - - /* We fill all the registers internally, independent of what we - return, for use in backreferences. The number here includes - an element for register zero. */ - size_t num_regs = bufp->re_nsub + 1; - - /* The currently active registers. */ - active_reg_t lowest_active_reg = NO_LOWEST_ACTIVE_REG; - active_reg_t highest_active_reg = NO_HIGHEST_ACTIVE_REG; - - /* Information on the contents of registers. These are pointers into - the input strings; they record just what was matched (on this - attempt) by a subexpression part of the pattern, that is, the - regnum-th regstart pointer points to where in the pattern we began - matching and the regnum-th regend points to right after where we - stopped matching the regnum-th subexpression. (The zeroth register - keeps track of what the whole pattern matches.) */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **regstart, **regend; -#endif - - /* If a group that's operated upon by a repetition operator fails to - match anything, then the register for its start will need to be - restored because it will have been set to wherever in the string we - are when we last see its open-group operator. Similarly for a - register's end. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **old_regstart, **old_regend; -#endif - - /* The is_active field of reg_info helps us keep track of which (possibly - nested) subexpressions we are currently in. The matched_something - field of reg_info[reg_num] helps us tell whether or not we have - matched any of the pattern so far this time through the reg_num-th - subexpression. These two fields get reset each time through any - loop their register is in. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */ - PREFIX(register_info_type) *reg_info; -#endif - - /* The following record the register info as found in the above - variables when we find a match better than any we've seen before. - This happens as we backtrack through the failure points, which in - turn happens only if we have not yet matched the entire string. */ - unsigned best_regs_set = false; -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **best_regstart, **best_regend; -#endif - - /* Logically, this is `best_regend[0]'. But we don't want to have to - allocate space for that if we're not allocating space for anything - else (see below). Also, we never need info about register 0 for - any of the other register vectors, and it seems rather a kludge to - treat `best_regend' differently than the rest. So we keep track of - the end of the best match so far in a separate variable. We - initialize this to NULL so that when we backtrack the first time - and need to test it, it's not garbage. */ - const CHAR_T *match_end = NULL; - - /* This helps SET_REGS_MATCHED avoid doing redundant work. */ - int set_regs_matched_done = 0; - - /* Used when we pop values we don't care about. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **reg_dummy; - PREFIX(register_info_type) *reg_info_dummy; -#endif - -#ifdef DEBUG - /* Counts the total number of registers pushed. */ - unsigned num_regs_pushed = 0; -#endif - - /* Definitions for state transitions. More efficiently for gcc. */ -#ifdef __GNUC__ -# if defined HAVE_SUBTRACT_LOCAL_LABELS && defined SHARED -# define NEXT \ - do \ - { \ - int offset; \ - const void *__unbounded ptr; \ - offset = (p == pend \ - ? 0 : jmptable[SWITCH_ENUM_CAST ((re_opcode_t) *p++)]); \ - ptr = &&end_of_pattern + offset; \ - goto *ptr; \ - } \ - while (0) -# define REF(x) \ - &&label_##x - &&end_of_pattern -# define JUMP_TABLE_TYPE const int -# else -# define NEXT \ - do \ - { \ - const void *__unbounded ptr; \ - ptr = (p == pend ? &&end_of_pattern \ - : jmptable[SWITCH_ENUM_CAST ((re_opcode_t) *p++)]); \ - goto *ptr; \ - } \ - while (0) -# define REF(x) \ - &&label_##x -# define JUMP_TABLE_TYPE const void *const -# endif -# define CASE(x) label_##x - static JUMP_TABLE_TYPE jmptable[] = - { - REF (no_op), - REF (succeed), - REF (exactn), -# ifdef MBS_SUPPORT - REF (exactn_bin), -# endif - REF (anychar), - REF (charset), - REF (charset_not), - REF (start_memory), - REF (stop_memory), - REF (duplicate), - REF (begline), - REF (endline), - REF (begbuf), - REF (endbuf), - REF (jump), - REF (jump_past_alt), - REF (on_failure_jump), - REF (on_failure_keep_string_jump), - REF (pop_failure_jump), - REF (maybe_pop_jump), - REF (dummy_failure_jump), - REF (push_dummy_failure), - REF (succeed_n), - REF (jump_n), - REF (set_number_at), - REF (wordchar), - REF (notwordchar), - REF (wordbeg), - REF (wordend), - REF (wordbound), - REF (notwordbound) -# ifdef emacs - ,REF (before_dot), - REF (at_dot), - REF (after_dot), - REF (syntaxspec), - REF (notsyntaxspec) -# endif - }; -#else -# define NEXT \ - break -# define CASE(x) \ - case x -#endif - - DEBUG_PRINT1 ("\n\nEntering re_match_2.\n"); - - INIT_FAIL_STACK (); - -#ifdef MATCH_MAY_ALLOCATE - /* Do not bother to initialize all the register variables if there are - no groups in the pattern, as it takes a fair amount of time. If - there are groups, we include space for register 0 (the whole - pattern), even though we never use it, since it simplifies the - array indexing. We should fix this. */ - if (bufp->re_nsub) - { - regstart = REGEX_TALLOC (num_regs, const CHAR_T *); - regend = REGEX_TALLOC (num_regs, const CHAR_T *); - old_regstart = REGEX_TALLOC (num_regs, const CHAR_T *); - old_regend = REGEX_TALLOC (num_regs, const CHAR_T *); - best_regstart = REGEX_TALLOC (num_regs, const CHAR_T *); - best_regend = REGEX_TALLOC (num_regs, const CHAR_T *); - reg_info = REGEX_TALLOC (num_regs, PREFIX(register_info_type)); - reg_dummy = REGEX_TALLOC (num_regs, const CHAR_T *); - reg_info_dummy = REGEX_TALLOC (num_regs, PREFIX(register_info_type)); - - if (!(regstart && regend && old_regstart && old_regend && reg_info - && best_regstart && best_regend && reg_dummy && reg_info_dummy)) - { - FREE_VARIABLES (); - return -2; - } - } - else - { - /* We must initialize all our variables to NULL, so that - `FREE_VARIABLES' doesn't try to free them. */ - regstart = regend = old_regstart = old_regend = best_regstart - = best_regend = reg_dummy = NULL; - reg_info = reg_info_dummy = (PREFIX(register_info_type) *) NULL; - } -#endif /* MATCH_MAY_ALLOCATE */ - - /* The starting position is bogus. */ -#ifdef WCHAR - if (pos < 0 || pos > csize1 + csize2) -#else /* BYTE */ - if (pos < 0 || pos > size1 + size2) -#endif - { - FREE_VARIABLES (); - return -1; - } - -#ifdef WCHAR - /* Allocate wchar_t array for string1 and string2 and - fill them with converted string. */ - if (string1 == NULL && string2 == NULL) - { - /* We need seting up buffers here. */ - - /* We must free wcs buffers in this function. */ - cant_free_wcs_buf = 0; - - if (csize1 != 0) - { - string1 = REGEX_TALLOC (csize1 + 1, CHAR_T); - mbs_offset1 = REGEX_TALLOC (csize1 + 1, int); - is_binary = REGEX_TALLOC (csize1 + 1, char); - if (!string1 || !mbs_offset1 || !is_binary) - { - FREE_VAR (string1); - FREE_VAR (mbs_offset1); - FREE_VAR (is_binary); - return -2; - } - } - if (csize2 != 0) - { - string2 = REGEX_TALLOC (csize2 + 1, CHAR_T); - mbs_offset2 = REGEX_TALLOC (csize2 + 1, int); - is_binary = REGEX_TALLOC (csize2 + 1, char); - if (!string2 || !mbs_offset2 || !is_binary) - { - FREE_VAR (string1); - FREE_VAR (mbs_offset1); - FREE_VAR (string2); - FREE_VAR (mbs_offset2); - FREE_VAR (is_binary); - return -2; - } - size2 = convert_mbs_to_wcs(string2, cstring2, csize2, - mbs_offset2, is_binary); - string2[size2] = L'\0'; /* for a sentinel */ - FREE_VAR (is_binary); - } - } - - /* We need to cast pattern to (wchar_t*), because we casted this compiled - pattern to (char*) in regex_compile. */ - p = pattern = (CHAR_T*)bufp->buffer; - pend = (CHAR_T*)(bufp->buffer + bufp->used); - -#endif /* WCHAR */ - - /* Initialize subexpression text positions to -1 to mark ones that no - start_memory/stop_memory has been seen for. Also initialize the - register information struct. */ - for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++) - { - regstart[mcnt] = regend[mcnt] - = old_regstart[mcnt] = old_regend[mcnt] = REG_UNSET_VALUE; - - REG_MATCH_NULL_STRING_P (reg_info[mcnt]) = MATCH_NULL_UNSET_VALUE; - IS_ACTIVE (reg_info[mcnt]) = 0; - MATCHED_SOMETHING (reg_info[mcnt]) = 0; - EVER_MATCHED_SOMETHING (reg_info[mcnt]) = 0; - } - - /* We move `string1' into `string2' if the latter's empty -- but not if - `string1' is null. */ - if (size2 == 0 && string1 != NULL) - { - string2 = string1; - size2 = size1; - string1 = 0; - size1 = 0; -#ifdef WCHAR - mbs_offset2 = mbs_offset1; - csize2 = csize1; - mbs_offset1 = NULL; - csize1 = 0; -#endif - } - end1 = string1 + size1; - end2 = string2 + size2; - - /* Compute where to stop matching, within the two strings. */ -#ifdef WCHAR - if (stop <= csize1) - { - mcnt = count_mbs_length(mbs_offset1, stop); - end_match_1 = string1 + mcnt; - end_match_2 = string2; - } - else - { - if (stop > csize1 + csize2) - stop = csize1 + csize2; - end_match_1 = end1; - mcnt = count_mbs_length(mbs_offset2, stop-csize1); - end_match_2 = string2 + mcnt; - } - if (mcnt < 0) - { /* count_mbs_length return error. */ - FREE_VARIABLES (); - return -1; - } -#else - if (stop <= size1) - { - end_match_1 = string1 + stop; - end_match_2 = string2; - } - else - { - end_match_1 = end1; - end_match_2 = string2 + stop - size1; - } -#endif /* WCHAR */ - - /* `p' scans through the pattern as `d' scans through the data. - `dend' is the end of the input string that `d' points within. `d' - is advanced into the following input string whenever necessary, but - this happens before fetching; therefore, at the beginning of the - loop, `d' can be pointing at the end of a string, but it cannot - equal `string2'. */ -#ifdef WCHAR - if (size1 > 0 && pos <= csize1) - { - mcnt = count_mbs_length(mbs_offset1, pos); - d = string1 + mcnt; - dend = end_match_1; - } - else - { - mcnt = count_mbs_length(mbs_offset2, pos-csize1); - d = string2 + mcnt; - dend = end_match_2; - } - - if (mcnt < 0) - { /* count_mbs_length return error. */ - FREE_VARIABLES (); - return -1; - } -#else - if (size1 > 0 && pos <= size1) - { - d = string1 + pos; - dend = end_match_1; - } - else - { - d = string2 + pos - size1; - dend = end_match_2; - } -#endif /* WCHAR */ - - DEBUG_PRINT1 ("The compiled pattern is:\n"); - DEBUG_PRINT_COMPILED_PATTERN (bufp, p, pend); - DEBUG_PRINT1 ("The string to match is: `"); - DEBUG_PRINT_DOUBLE_STRING (d, string1, size1, string2, size2); - DEBUG_PRINT1 ("'\n"); - - /* This loops over pattern commands. It exits by returning from the - function if the match is complete, or it drops through if the match - fails at this starting point in the input data. */ - for (;;) - { -#ifdef _LIBC - DEBUG_PRINT2 ("\n%p: ", p); -#else - DEBUG_PRINT2 ("\n0x%x: ", p); -#endif - -#ifdef __GNUC__ - NEXT; -#else - if (p == pend) -#endif - { -#ifdef __GNUC__ - end_of_pattern: -#endif - /* End of pattern means we might have succeeded. */ - DEBUG_PRINT1 ("end of pattern ... "); - - /* If we haven't matched the entire string, and we want the - longest match, try backtracking. */ - if (d != end_match_2) - { - /* 1 if this match ends in the same string (string1 or string2) - as the best previous match. */ - boolean same_str_p = (FIRST_STRING_P (match_end) - == MATCHING_IN_FIRST_STRING); - /* 1 if this match is the best seen so far. */ - boolean best_match_p; - - /* AIX compiler got confused when this was combined - with the previous declaration. */ - if (same_str_p) - best_match_p = d > match_end; - else - best_match_p = !MATCHING_IN_FIRST_STRING; - - DEBUG_PRINT1 ("backtracking.\n"); - - if (!FAIL_STACK_EMPTY ()) - { /* More failure points to try. */ - - /* If exceeds best match so far, save it. */ - if (!best_regs_set || best_match_p) - { - best_regs_set = true; - match_end = d; - - DEBUG_PRINT1 ("\nSAVING match as best so far.\n"); - - for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++) - { - best_regstart[mcnt] = regstart[mcnt]; - best_regend[mcnt] = regend[mcnt]; - } - } - goto fail; - } - - /* If no failure points, don't restore garbage. And if - last match is real best match, don't restore second - best one. */ - else if (best_regs_set && !best_match_p) - { - restore_best_regs: - /* Restore best match. It may happen that `dend == - end_match_1' while the restored d is in string2. - For example, the pattern `x.*y.*z' against the - strings `x-' and `y-z-', if the two strings are - not consecutive in memory. */ - DEBUG_PRINT1 ("Restoring best registers.\n"); - - d = match_end; - dend = ((d >= string1 && d <= end1) - ? end_match_1 : end_match_2); - - for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++) - { - regstart[mcnt] = best_regstart[mcnt]; - regend[mcnt] = best_regend[mcnt]; - } - } - } /* d != end_match_2 */ - - succeed_label: - DEBUG_PRINT1 ("Accepting match.\n"); - /* If caller wants register contents data back, do it. */ - if (regs && !bufp->no_sub) - { - /* Have the register data arrays been allocated? */ - if (bufp->regs_allocated == REGS_UNALLOCATED) - { /* No. So allocate them with malloc. We need one - extra element beyond `num_regs' for the `-1' marker - GNU code uses. */ - regs->num_regs = MAX (RE_NREGS, num_regs + 1); - regs->start = TALLOC (regs->num_regs, regoff_t); - regs->end = TALLOC (regs->num_regs, regoff_t); - if (regs->start == NULL || regs->end == NULL) - { - FREE_VARIABLES (); - return -2; - } - bufp->regs_allocated = REGS_REALLOCATE; - } - else if (bufp->regs_allocated == REGS_REALLOCATE) - { /* Yes. If we need more elements than were already - allocated, reallocate them. If we need fewer, just - leave it alone. */ - if (regs->num_regs < num_regs + 1) - { - regs->num_regs = num_regs + 1; - RETALLOC (regs->start, regs->num_regs, regoff_t); - RETALLOC (regs->end, regs->num_regs, regoff_t); - if (regs->start == NULL || regs->end == NULL) - { - FREE_VARIABLES (); - return -2; - } - } - } - else - { - /* These braces fend off a "empty body in an else-statement" - warning under GCC when assert expands to nothing. */ - assert (bufp->regs_allocated == REGS_FIXED); - } - - /* Convert the pointer data in `regstart' and `regend' to - indices. Register zero has to be set differently, - since we haven't kept track of any info for it. */ - if (regs->num_regs > 0) - { - regs->start[0] = pos; -#ifdef WCHAR - if (MATCHING_IN_FIRST_STRING) - regs->end[0] = (mbs_offset1 != NULL ? - mbs_offset1[d-string1] : 0); - else - regs->end[0] = csize1 + (mbs_offset2 != NULL - ? mbs_offset2[d-string2] : 0); -#else - regs->end[0] = (MATCHING_IN_FIRST_STRING - ? ((regoff_t) (d - string1)) - : ((regoff_t) (d - string2 + size1))); -#endif /* WCHAR */ - } - - /* Go through the first `min (num_regs, regs->num_regs)' - registers, since that is all we initialized. */ - for (mcnt = 1; (unsigned) mcnt < MIN (num_regs, regs->num_regs); - mcnt++) - { - if (REG_UNSET (regstart[mcnt]) || REG_UNSET (regend[mcnt])) - regs->start[mcnt] = regs->end[mcnt] = -1; - else - { - regs->start[mcnt] - = (regoff_t) POINTER_TO_OFFSET (regstart[mcnt]); - regs->end[mcnt] - = (regoff_t) POINTER_TO_OFFSET (regend[mcnt]); - } - } - - /* If the regs structure we return has more elements than - were in the pattern, set the extra elements to -1. If - we (re)allocated the registers, this is the case, - because we always allocate enough to have at least one - -1 at the end. */ - for (mcnt = num_regs; (unsigned) mcnt < regs->num_regs; mcnt++) - regs->start[mcnt] = regs->end[mcnt] = -1; - } /* regs && !bufp->no_sub */ - - DEBUG_PRINT4 ("%u failure points pushed, %u popped (%u remain).\n", - nfailure_points_pushed, nfailure_points_popped, - nfailure_points_pushed - nfailure_points_popped); - DEBUG_PRINT2 ("%u registers pushed.\n", num_regs_pushed); - -#ifdef WCHAR - if (MATCHING_IN_FIRST_STRING) - mcnt = mbs_offset1 != NULL ? mbs_offset1[d-string1] : 0; - else - mcnt = (mbs_offset2 != NULL ? mbs_offset2[d-string2] : 0) + - csize1; - mcnt -= pos; -#else - mcnt = d - pos - (MATCHING_IN_FIRST_STRING - ? string1 : string2 - size1); -#endif /* WCHAR */ - - DEBUG_PRINT2 ("Returning %d from re_match_2.\n", mcnt); - - FREE_VARIABLES (); - return mcnt; - } - -#ifndef __GNUC__ - /* Otherwise match next pattern command. */ - switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++)) - { -#endif - /* Ignore these. Used to ignore the n of succeed_n's which - currently have n == 0. */ - CASE (no_op): - DEBUG_PRINT1 ("EXECUTING no_op.\n"); - NEXT; - - CASE (succeed): - DEBUG_PRINT1 ("EXECUTING succeed.\n"); - goto succeed_label; - - /* Match the next n pattern characters exactly. The following - byte in the pattern defines n, and the n bytes after that - are the characters to match. */ - CASE (exactn): -#ifdef MBS_SUPPORT - CASE (exactn_bin): -#endif - mcnt = *p++; - DEBUG_PRINT2 ("EXECUTING exactn %d.\n", mcnt); - - /* This is written out as an if-else so we don't waste time - testing `translate' inside the loop. */ - if (translate) - { - do - { - PREFETCH (); -#ifdef WCHAR - if (*d <= 0xff) - { - if ((UCHAR_T) translate[(unsigned char) *d++] - != (UCHAR_T) *p++) - goto fail; - } - else - { - if (*d++ != (CHAR_T) *p++) - goto fail; - } -#else - if ((UCHAR_T) translate[(unsigned char) *d++] - != (UCHAR_T) *p++) - goto fail; -#endif /* WCHAR */ - } - while (--mcnt); - } - else - { - do - { - PREFETCH (); - if (*d++ != (CHAR_T) *p++) goto fail; - } - while (--mcnt); - } - SET_REGS_MATCHED (); - NEXT; - - - /* Match any character except possibly a newline or a null. */ - CASE (anychar): - DEBUG_PRINT1 ("EXECUTING anychar.\n"); - - PREFETCH (); - - if ((!(bufp->syntax & RE_DOT_NEWLINE) && TRANSLATE (*d) == '\n') - || (bufp->syntax & RE_DOT_NOT_NULL && TRANSLATE (*d) == '\000')) - goto fail; - - SET_REGS_MATCHED (); - DEBUG_PRINT2 (" Matched `%ld'.\n", (long int) *d); - d++; - NEXT; - - - CASE (charset): - CASE (charset_not): - { - register UCHAR_T c; -#ifdef WCHAR - unsigned int i, char_class_length, coll_symbol_length, - equiv_class_length, ranges_length, chars_length, length; - CHAR_T *workp, *workp2, *charset_top; -#define WORK_BUFFER_SIZE 128 - CHAR_T str_buf[WORK_BUFFER_SIZE]; -# ifdef _LIBC - uint32_t nrules; -# endif /* _LIBC */ -#endif /* WCHAR */ - boolean not = (re_opcode_t) *(p - 1) == charset_not; - - DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : ""); - PREFETCH (); - c = TRANSLATE (*d); /* The character to match. */ -#ifdef WCHAR -# ifdef _LIBC - nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif /* _LIBC */ - charset_top = p - 1; - char_class_length = *p++; - coll_symbol_length = *p++; - equiv_class_length = *p++; - ranges_length = *p++; - chars_length = *p++; - /* p points charset[6], so the address of the next instruction - (charset[l+m+n+2o+k+p']) equals p[l+m+n+2*o+p'], - where l=length of char_classes, m=length of collating_symbol, - n=equivalence_class, o=length of char_range, - p'=length of character. */ - workp = p; - /* Update p to indicate the next instruction. */ - p += char_class_length + coll_symbol_length+ equiv_class_length + - 2*ranges_length + chars_length; - - /* match with char_class? */ - for (i = 0; i < char_class_length ; i += CHAR_CLASS_SIZE) - { - wctype_t wctype; - uintptr_t alignedp = ((uintptr_t)workp - + __alignof__(wctype_t) - 1) - & ~(uintptr_t)(__alignof__(wctype_t) - 1); - wctype = *((wctype_t*)alignedp); - workp += CHAR_CLASS_SIZE; - if (iswctype((wint_t)c, wctype)) - goto char_set_matched; - } - - /* match with collating_symbol? */ -# ifdef _LIBC - if (nrules != 0) - { - const unsigned char *extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB); - - for (workp2 = workp + coll_symbol_length ; workp < workp2 ; - workp++) - { - int32_t *wextra; - wextra = (int32_t*)(extra + *workp++); - for (i = 0; i < *wextra; ++i) - if (TRANSLATE(d[i]) != wextra[1 + i]) - break; - - if (i == *wextra) - { - /* Update d, however d will be incremented at - char_set_matched:, we decrement d here. */ - d += i - 1; - goto char_set_matched; - } - } - } - else /* (nrules == 0) */ -# endif - /* If we can't look up collation data, we use wcscoll - instead. */ - { - for (workp2 = workp + coll_symbol_length ; workp < workp2 ;) - { - const CHAR_T *backup_d = d, *backup_dend = dend; - length = wcslen (workp); - - /* If wcscoll(the collating symbol, whole string) > 0, - any substring of the string never match with the - collating symbol. */ - if (wcscoll (workp, d) > 0) - { - workp += length + 1; - continue; - } - - /* First, we compare the collating symbol with - the first character of the string. - If it don't match, we add the next character to - the compare buffer in turn. */ - for (i = 0 ; i < WORK_BUFFER_SIZE-1 ; i++, d++) - { - int match; - if (d == dend) - { - if (dend == end_match_2) - break; - d = string2; - dend = end_match_2; - } - - /* add next character to the compare buffer. */ - str_buf[i] = TRANSLATE(*d); - str_buf[i+1] = '\0'; - - match = wcscoll (workp, str_buf); - if (match == 0) - goto char_set_matched; - - if (match < 0) - /* (str_buf > workp) indicate (str_buf + X > workp), - because for all X (str_buf + X > str_buf). - So we don't need continue this loop. */ - break; - - /* Otherwise(str_buf < workp), - (str_buf+next_character) may equals (workp). - So we continue this loop. */ - } - /* not matched */ - d = backup_d; - dend = backup_dend; - workp += length + 1; - } - } - /* match with equivalence_class? */ -# ifdef _LIBC - if (nrules != 0) - { - const CHAR_T *backup_d = d, *backup_dend = dend; - /* Try to match the equivalence class against - those known to the collate implementation. */ - const int32_t *table; - const int32_t *weights; - const int32_t *extra; - const int32_t *indirect; - int32_t idx, idx2; - wint_t *cp; - size_t len; - - /* This #include defines a local function! */ -# include <locale/weightwc.h> - - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEWC); - weights = (const wint_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTWC); - extra = (const wint_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAWC); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTWC); - - /* Write 1 collating element to str_buf, and - get its index. */ - idx2 = 0; - - for (i = 0 ; idx2 == 0 && i < WORK_BUFFER_SIZE - 1; i++) - { - cp = (wint_t*)str_buf; - if (d == dend) - { - if (dend == end_match_2) - break; - d = string2; - dend = end_match_2; - } - str_buf[i] = TRANSLATE(*(d+i)); - str_buf[i+1] = '\0'; /* sentinel */ - idx2 = findidx ((const wint_t**)&cp); - } - - /* Update d, however d will be incremented at - char_set_matched:, we decrement d here. */ - d = backup_d + ((wchar_t*)cp - (wchar_t*)str_buf - 1); - if (d >= dend) - { - if (dend == end_match_2) - d = dend; - else - { - d = string2; - dend = end_match_2; - } - } - - len = weights[idx2]; - - for (workp2 = workp + equiv_class_length ; workp < workp2 ; - workp++) - { - idx = (int32_t)*workp; - /* We already checked idx != 0 in regex_compile. */ - - if (idx2 != 0 && len == weights[idx]) - { - int cnt = 0; - while (cnt < len && (weights[idx + 1 + cnt] - == weights[idx2 + 1 + cnt])) - ++cnt; - - if (cnt == len) - goto char_set_matched; - } - } - /* not matched */ - d = backup_d; - dend = backup_dend; - } - else /* (nrules == 0) */ -# endif - /* If we can't look up collation data, we use wcscoll - instead. */ - { - for (workp2 = workp + equiv_class_length ; workp < workp2 ;) - { - const CHAR_T *backup_d = d, *backup_dend = dend; - length = wcslen (workp); - - /* If wcscoll(the collating symbol, whole string) > 0, - any substring of the string never match with the - collating symbol. */ - if (wcscoll (workp, d) > 0) - { - workp += length + 1; - break; - } - - /* First, we compare the equivalence class with - the first character of the string. - If it don't match, we add the next character to - the compare buffer in turn. */ - for (i = 0 ; i < WORK_BUFFER_SIZE - 1 ; i++, d++) - { - int match; - if (d == dend) - { - if (dend == end_match_2) - break; - d = string2; - dend = end_match_2; - } - - /* add next character to the compare buffer. */ - str_buf[i] = TRANSLATE(*d); - str_buf[i+1] = '\0'; - - match = wcscoll (workp, str_buf); - - if (match == 0) - goto char_set_matched; - - if (match < 0) - /* (str_buf > workp) indicate (str_buf + X > workp), - because for all X (str_buf + X > str_buf). - So we don't need continue this loop. */ - break; - - /* Otherwise(str_buf < workp), - (str_buf+next_character) may equals (workp). - So we continue this loop. */ - } - /* not matched */ - d = backup_d; - dend = backup_dend; - workp += length + 1; - } - } - - /* match with char_range? */ -# ifdef _LIBC - if (nrules != 0) - { - uint32_t collseqval; - const char *collseq = (const char *) - _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQWC); - - collseqval = collseq_table_lookup (collseq, c); - - for (; workp < p - chars_length ;) - { - uint32_t start_val, end_val; - - /* We already compute the collation sequence value - of the characters (or collating symbols). */ - start_val = (uint32_t) *workp++; /* range_start */ - end_val = (uint32_t) *workp++; /* range_end */ - - if (start_val <= collseqval && collseqval <= end_val) - goto char_set_matched; - } - } - else -# endif - { - /* We set range_start_char at str_buf[0], range_end_char - at str_buf[4], and compared char at str_buf[2]. */ - str_buf[1] = 0; - str_buf[2] = c; - str_buf[3] = 0; - str_buf[5] = 0; - for (; workp < p - chars_length ;) - { - wchar_t *range_start_char, *range_end_char; - - /* match if (range_start_char <= c <= range_end_char). */ - - /* If range_start(or end) < 0, we assume -range_start(end) - is the offset of the collating symbol which is specified - as the character of the range start(end). */ - - /* range_start */ - if (*workp < 0) - range_start_char = charset_top - (*workp++); - else - { - str_buf[0] = *workp++; - range_start_char = str_buf; - } - - /* range_end */ - if (*workp < 0) - range_end_char = charset_top - (*workp++); - else - { - str_buf[4] = *workp++; - range_end_char = str_buf + 4; - } - - if (wcscoll (range_start_char, str_buf+2) <= 0 - && wcscoll (str_buf+2, range_end_char) <= 0) - goto char_set_matched; - } - } - - /* match with char? */ - for (; workp < p ; workp++) - if (c == *workp) - goto char_set_matched; - - not = !not; - - char_set_matched: - if (not) goto fail; -#else - /* Cast to `unsigned' instead of `unsigned char' in case the - bit list is a full 32 bytes long. */ - if (c < (unsigned) (*p * BYTEWIDTH) - && p[1 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH))) - not = !not; - - p += 1 + *p; - - if (!not) goto fail; -#undef WORK_BUFFER_SIZE -#endif /* WCHAR */ - SET_REGS_MATCHED (); - d++; - NEXT; - } - - - /* The beginning of a group is represented by start_memory. - The arguments are the register number in the next byte, and the - number of groups inner to this one in the next. The text - matched within the group is recorded (in the internal - registers data structure) under the register number. */ - CASE (start_memory): - DEBUG_PRINT3 ("EXECUTING start_memory %ld (%ld):\n", - (long int) *p, (long int) p[1]); - - /* Find out if this group can match the empty string. */ - p1 = p; /* To send to group_match_null_string_p. */ - - if (REG_MATCH_NULL_STRING_P (reg_info[*p]) == MATCH_NULL_UNSET_VALUE) - REG_MATCH_NULL_STRING_P (reg_info[*p]) - = PREFIX(group_match_null_string_p) (&p1, pend, reg_info); - - /* Save the position in the string where we were the last time - we were at this open-group operator in case the group is - operated upon by a repetition operator, e.g., with `(a*)*b' - against `ab'; then we want to ignore where we are now in - the string in case this attempt to match fails. */ - old_regstart[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p]) - ? REG_UNSET (regstart[*p]) ? d : regstart[*p] - : regstart[*p]; - DEBUG_PRINT2 (" old_regstart: %d\n", - POINTER_TO_OFFSET (old_regstart[*p])); - - regstart[*p] = d; - DEBUG_PRINT2 (" regstart: %d\n", POINTER_TO_OFFSET (regstart[*p])); - - IS_ACTIVE (reg_info[*p]) = 1; - MATCHED_SOMETHING (reg_info[*p]) = 0; - - /* Clear this whenever we change the register activity status. */ - set_regs_matched_done = 0; - - /* This is the new highest active register. */ - highest_active_reg = *p; - - /* If nothing was active before, this is the new lowest active - register. */ - if (lowest_active_reg == NO_LOWEST_ACTIVE_REG) - lowest_active_reg = *p; - - /* Move past the register number and inner group count. */ - p += 2; - just_past_start_mem = p; - - NEXT; - - - /* The stop_memory opcode represents the end of a group. Its - arguments are the same as start_memory's: the register - number, and the number of inner groups. */ - CASE (stop_memory): - DEBUG_PRINT3 ("EXECUTING stop_memory %ld (%ld):\n", - (long int) *p, (long int) p[1]); - - /* We need to save the string position the last time we were at - this close-group operator in case the group is operated - upon by a repetition operator, e.g., with `((a*)*(b*)*)*' - against `aba'; then we want to ignore where we are now in - the string in case this attempt to match fails. */ - old_regend[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p]) - ? REG_UNSET (regend[*p]) ? d : regend[*p] - : regend[*p]; - DEBUG_PRINT2 (" old_regend: %d\n", - POINTER_TO_OFFSET (old_regend[*p])); - - regend[*p] = d; - DEBUG_PRINT2 (" regend: %d\n", POINTER_TO_OFFSET (regend[*p])); - - /* This register isn't active anymore. */ - IS_ACTIVE (reg_info[*p]) = 0; - - /* Clear this whenever we change the register activity status. */ - set_regs_matched_done = 0; - - /* If this was the only register active, nothing is active - anymore. */ - if (lowest_active_reg == highest_active_reg) - { - lowest_active_reg = NO_LOWEST_ACTIVE_REG; - highest_active_reg = NO_HIGHEST_ACTIVE_REG; - } - else - { /* We must scan for the new highest active register, since - it isn't necessarily one less than now: consider - (a(b)c(d(e)f)g). When group 3 ends, after the f), the - new highest active register is 1. */ - UCHAR_T r = *p - 1; - while (r > 0 && !IS_ACTIVE (reg_info[r])) - r--; - - /* If we end up at register zero, that means that we saved - the registers as the result of an `on_failure_jump', not - a `start_memory', and we jumped to past the innermost - `stop_memory'. For example, in ((.)*) we save - registers 1 and 2 as a result of the *, but when we pop - back to the second ), we are at the stop_memory 1. - Thus, nothing is active. */ - if (r == 0) - { - lowest_active_reg = NO_LOWEST_ACTIVE_REG; - highest_active_reg = NO_HIGHEST_ACTIVE_REG; - } - else - highest_active_reg = r; - } - - /* If just failed to match something this time around with a - group that's operated on by a repetition operator, try to - force exit from the ``loop'', and restore the register - information for this group that we had before trying this - last match. */ - if ((!MATCHED_SOMETHING (reg_info[*p]) - || just_past_start_mem == p - 1) - && (p + 2) < pend) - { - boolean is_a_jump_n = false; - - p1 = p + 2; - mcnt = 0; - switch ((re_opcode_t) *p1++) - { - case jump_n: - is_a_jump_n = true; - case pop_failure_jump: - case maybe_pop_jump: - case jump: - case dummy_failure_jump: - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - if (is_a_jump_n) - p1 += OFFSET_ADDRESS_SIZE; - break; - - default: - /* do nothing */ ; - } - p1 += mcnt; - - /* If the next operation is a jump backwards in the pattern - to an on_failure_jump right before the start_memory - corresponding to this stop_memory, exit from the loop - by forcing a failure after pushing on the stack the - on_failure_jump's jump in the pattern, and d. */ - if (mcnt < 0 && (re_opcode_t) *p1 == on_failure_jump - && (re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == start_memory - && p1[2+OFFSET_ADDRESS_SIZE] == *p) - { - /* If this group ever matched anything, then restore - what its registers were before trying this last - failed match, e.g., with `(a*)*b' against `ab' for - regstart[1], and, e.g., with `((a*)*(b*)*)*' - against `aba' for regend[3]. - - Also restore the registers for inner groups for, - e.g., `((a*)(b*))*' against `aba' (register 3 would - otherwise get trashed). */ - - if (EVER_MATCHED_SOMETHING (reg_info[*p])) - { - unsigned r; - - EVER_MATCHED_SOMETHING (reg_info[*p]) = 0; - - /* Restore this and inner groups' (if any) registers. */ - for (r = *p; r < (unsigned) *p + (unsigned) *(p + 1); - r++) - { - regstart[r] = old_regstart[r]; - - /* xx why this test? */ - if (old_regend[r] >= regstart[r]) - regend[r] = old_regend[r]; - } - } - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - PUSH_FAILURE_POINT (p1 + mcnt, d, -2); - - goto fail; - } - } - - /* Move past the register number and the inner group count. */ - p += 2; - NEXT; - - - /* \<digit> has been turned into a `duplicate' command which is - followed by the numeric value of <digit> as the register number. */ - CASE (duplicate): - { - register const CHAR_T *d2, *dend2; - int regno = *p++; /* Get which register to match against. */ - DEBUG_PRINT2 ("EXECUTING duplicate %d.\n", regno); - - /* Can't back reference a group which we've never matched. */ - if (REG_UNSET (regstart[regno]) || REG_UNSET (regend[regno])) - goto fail; - - /* Where in input to try to start matching. */ - d2 = regstart[regno]; - - /* Where to stop matching; if both the place to start and - the place to stop matching are in the same string, then - set to the place to stop, otherwise, for now have to use - the end of the first string. */ - - dend2 = ((FIRST_STRING_P (regstart[regno]) - == FIRST_STRING_P (regend[regno])) - ? regend[regno] : end_match_1); - for (;;) - { - /* If necessary, advance to next segment in register - contents. */ - while (d2 == dend2) - { - if (dend2 == end_match_2) break; - if (dend2 == regend[regno]) break; - - /* End of string1 => advance to string2. */ - d2 = string2; - dend2 = regend[regno]; - } - /* At end of register contents => success */ - if (d2 == dend2) break; - - /* If necessary, advance to next segment in data. */ - PREFETCH (); - - /* How many characters left in this segment to match. */ - mcnt = dend - d; - - /* Want how many consecutive characters we can match in - one shot, so, if necessary, adjust the count. */ - if (mcnt > dend2 - d2) - mcnt = dend2 - d2; - - /* Compare that many; failure if mismatch, else move - past them. */ - if (translate - ? PREFIX(bcmp_translate) (d, d2, mcnt, translate) - : memcmp (d, d2, mcnt*sizeof(UCHAR_T))) - goto fail; - d += mcnt, d2 += mcnt; - - /* Do this because we've match some characters. */ - SET_REGS_MATCHED (); - } - } - NEXT; - - - /* begline matches the empty string at the beginning of the string - (unless `not_bol' is set in `bufp'), and, if - `newline_anchor' is set, after newlines. */ - CASE (begline): - DEBUG_PRINT1 ("EXECUTING begline.\n"); - - if (AT_STRINGS_BEG (d)) - { - if (!bufp->not_bol) - { - NEXT; - } - } - else if (d[-1] == '\n' && bufp->newline_anchor) - { - NEXT; - } - /* In all other cases, we fail. */ - goto fail; - - - /* endline is the dual of begline. */ - CASE (endline): - DEBUG_PRINT1 ("EXECUTING endline.\n"); - - if (AT_STRINGS_END (d)) - { - if (!bufp->not_eol) - { - NEXT; - } - } - - /* We have to ``prefetch'' the next character. */ - else if ((d == end1 ? *string2 : *d) == '\n' - && bufp->newline_anchor) - { - NEXT; - } - goto fail; - - - /* Match at the very beginning of the data. */ - CASE (begbuf): - DEBUG_PRINT1 ("EXECUTING begbuf.\n"); - if (AT_STRINGS_BEG (d)) - { - NEXT; - } - goto fail; - - - /* Match at the very end of the data. */ - CASE (endbuf): - DEBUG_PRINT1 ("EXECUTING endbuf.\n"); - if (AT_STRINGS_END (d)) - { - NEXT; - } - goto fail; - - - /* on_failure_keep_string_jump is used to optimize `.*\n'. It - pushes NULL as the value for the string on the stack. Then - `pop_failure_point' will keep the current value for the - string, instead of restoring it. To see why, consider - matching `foo\nbar' against `.*\n'. The .* matches the foo; - then the . fails against the \n. But the next thing we want - to do is match the \n against the \n; if we restored the - string value, we would be back at the foo. - - Because this is used only in specific cases, we don't need to - check all the things that `on_failure_jump' does, to make - sure the right things get saved on the stack. Hence we don't - share its code. The only reason to push anything on the - stack at all is that otherwise we would have to change - `anychar's code to do something besides goto fail in this - case; that seems worse than this. */ - CASE (on_failure_keep_string_jump): - DEBUG_PRINT1 ("EXECUTING on_failure_keep_string_jump"); - - EXTRACT_NUMBER_AND_INCR (mcnt, p); -#ifdef _LIBC - DEBUG_PRINT3 (" %d (to %p):\n", mcnt, p + mcnt); -#else - DEBUG_PRINT3 (" %d (to 0x%x):\n", mcnt, p + mcnt); -#endif - - PUSH_FAILURE_POINT (p + mcnt, NULL, -2); - NEXT; - - - /* Uses of on_failure_jump: - - Each alternative starts with an on_failure_jump that points - to the beginning of the next alternative. Each alternative - except the last ends with a jump that in effect jumps past - the rest of the alternatives. (They really jump to the - ending jump of the following alternative, because tensioning - these jumps is a hassle.) - - Repeats start with an on_failure_jump that points past both - the repetition text and either the following jump or - pop_failure_jump back to this on_failure_jump. */ - CASE (on_failure_jump): - on_failure: - DEBUG_PRINT1 ("EXECUTING on_failure_jump"); - - EXTRACT_NUMBER_AND_INCR (mcnt, p); -#ifdef _LIBC - DEBUG_PRINT3 (" %d (to %p)", mcnt, p + mcnt); -#else - DEBUG_PRINT3 (" %d (to 0x%x)", mcnt, p + mcnt); -#endif - - /* If this on_failure_jump comes right before a group (i.e., - the original * applied to a group), save the information - for that group and all inner ones, so that if we fail back - to this point, the group's information will be correct. - For example, in \(a*\)*\1, we need the preceding group, - and in \(zz\(a*\)b*\)\2, we need the inner group. */ - - /* We can't use `p' to check ahead because we push - a failure point to `p + mcnt' after we do this. */ - p1 = p; - - /* We need to skip no_op's before we look for the - start_memory in case this on_failure_jump is happening as - the result of a completed succeed_n, as in \(a\)\{1,3\}b\1 - against aba. */ - while (p1 < pend && (re_opcode_t) *p1 == no_op) - p1++; - - if (p1 < pend && (re_opcode_t) *p1 == start_memory) - { - /* We have a new highest active register now. This will - get reset at the start_memory we are about to get to, - but we will have saved all the registers relevant to - this repetition op, as described above. */ - highest_active_reg = *(p1 + 1) + *(p1 + 2); - if (lowest_active_reg == NO_LOWEST_ACTIVE_REG) - lowest_active_reg = *(p1 + 1); - } - - DEBUG_PRINT1 (":\n"); - PUSH_FAILURE_POINT (p + mcnt, d, -2); - NEXT; - - - /* A smart repeat ends with `maybe_pop_jump'. - We change it to either `pop_failure_jump' or `jump'. */ - CASE (maybe_pop_jump): - EXTRACT_NUMBER_AND_INCR (mcnt, p); - DEBUG_PRINT2 ("EXECUTING maybe_pop_jump %d.\n", mcnt); - { - register UCHAR_T *p2 = p; - - /* Compare the beginning of the repeat with what in the - pattern follows its end. If we can establish that there - is nothing that they would both match, i.e., that we - would have to backtrack because of (as in, e.g., `a*a') - then we can change to pop_failure_jump, because we'll - never have to backtrack. - - This is not true in the case of alternatives: in - `(a|ab)*' we do need to backtrack to the `ab' alternative - (e.g., if the string was `ab'). But instead of trying to - detect that here, the alternative has put on a dummy - failure point which is what we will end up popping. */ - - /* Skip over open/close-group commands. - If what follows this loop is a ...+ construct, - look at what begins its body, since we will have to - match at least one of that. */ - while (1) - { - if (p2 + 2 < pend - && ((re_opcode_t) *p2 == stop_memory - || (re_opcode_t) *p2 == start_memory)) - p2 += 3; - else if (p2 + 2 + 2 * OFFSET_ADDRESS_SIZE < pend - && (re_opcode_t) *p2 == dummy_failure_jump) - p2 += 2 + 2 * OFFSET_ADDRESS_SIZE; - else - break; - } - - p1 = p + mcnt; - /* p1[0] ... p1[2] are the `on_failure_jump' corresponding - to the `maybe_finalize_jump' of this case. Examine what - follows. */ - - /* If we're at the end of the pattern, we can change. */ - if (p2 == pend) - { - /* Consider what happens when matching ":\(.*\)" - against ":/". I don't really understand this code - yet. */ - p[-(1+OFFSET_ADDRESS_SIZE)] = (UCHAR_T) - pop_failure_jump; - DEBUG_PRINT1 - (" End of pattern: change to `pop_failure_jump'.\n"); - } - - else if ((re_opcode_t) *p2 == exactn -#ifdef MBS_SUPPORT - || (re_opcode_t) *p2 == exactn_bin -#endif - || (bufp->newline_anchor && (re_opcode_t) *p2 == endline)) - { - register UCHAR_T c - = *p2 == (UCHAR_T) endline ? '\n' : p2[2]; - - if (((re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == exactn -#ifdef MBS_SUPPORT - || (re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == exactn_bin -#endif - ) && p1[3+OFFSET_ADDRESS_SIZE] != c) - { - p[-(1+OFFSET_ADDRESS_SIZE)] = (UCHAR_T) - pop_failure_jump; -#ifdef WCHAR - DEBUG_PRINT3 (" %C != %C => pop_failure_jump.\n", - (wint_t) c, - (wint_t) p1[3+OFFSET_ADDRESS_SIZE]); -#else - DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n", - (char) c, - (char) p1[3+OFFSET_ADDRESS_SIZE]); -#endif - } - -#ifndef WCHAR - else if ((re_opcode_t) p1[3] == charset - || (re_opcode_t) p1[3] == charset_not) - { - int not = (re_opcode_t) p1[3] == charset_not; - - if (c < (unsigned) (p1[4] * BYTEWIDTH) - && p1[5 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH))) - not = !not; - - /* `not' is equal to 1 if c would match, which means - that we can't change to pop_failure_jump. */ - if (!not) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - } -#endif /* not WCHAR */ - } -#ifndef WCHAR - else if ((re_opcode_t) *p2 == charset) - { - /* We win if the first character of the loop is not part - of the charset. */ - if ((re_opcode_t) p1[3] == exactn - && ! ((int) p2[1] * BYTEWIDTH > (int) p1[5] - && (p2[2 + p1[5] / BYTEWIDTH] - & (1 << (p1[5] % BYTEWIDTH))))) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - - else if ((re_opcode_t) p1[3] == charset_not) - { - int idx; - /* We win if the charset_not inside the loop - lists every character listed in the charset after. */ - for (idx = 0; idx < (int) p2[1]; idx++) - if (! (p2[2 + idx] == 0 - || (idx < (int) p1[4] - && ((p2[2 + idx] & ~ p1[5 + idx]) == 0)))) - break; - - if (idx == p2[1]) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - } - else if ((re_opcode_t) p1[3] == charset) - { - int idx; - /* We win if the charset inside the loop - has no overlap with the one after the loop. */ - for (idx = 0; - idx < (int) p2[1] && idx < (int) p1[4]; - idx++) - if ((p2[2 + idx] & p1[5 + idx]) != 0) - break; - - if (idx == p2[1] || idx == p1[4]) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - } - } -#endif /* not WCHAR */ - } - p -= OFFSET_ADDRESS_SIZE; /* Point at relative address again. */ - if ((re_opcode_t) p[-1] != pop_failure_jump) - { - p[-1] = (UCHAR_T) jump; - DEBUG_PRINT1 (" Match => jump.\n"); - goto unconditional_jump; - } - /* Note fall through. */ - - - /* The end of a simple repeat has a pop_failure_jump back to - its matching on_failure_jump, where the latter will push a - failure point. The pop_failure_jump takes off failure - points put on by this pop_failure_jump's matching - on_failure_jump; we got through the pattern to here from the - matching on_failure_jump, so didn't fail. */ - CASE (pop_failure_jump): - { - /* We need to pass separate storage for the lowest and - highest registers, even though we don't care about the - actual values. Otherwise, we will restore only one - register from the stack, since lowest will == highest in - `pop_failure_point'. */ - active_reg_t dummy_low_reg, dummy_high_reg; - UCHAR_T *pdummy = NULL; - const CHAR_T *sdummy = NULL; - - DEBUG_PRINT1 ("EXECUTING pop_failure_jump.\n"); - POP_FAILURE_POINT (sdummy, pdummy, - dummy_low_reg, dummy_high_reg, - reg_dummy, reg_dummy, reg_info_dummy); - } - /* Note fall through. */ - - unconditional_jump: -#ifdef _LIBC - DEBUG_PRINT2 ("\n%p: ", p); -#else - DEBUG_PRINT2 ("\n0x%x: ", p); -#endif - /* Note fall through. */ - - /* Unconditionally jump (without popping any failure points). */ - CASE (jump): - EXTRACT_NUMBER_AND_INCR (mcnt, p); /* Get the amount to jump. */ - DEBUG_PRINT2 ("EXECUTING jump %d ", mcnt); - p += mcnt; /* Do the jump. */ -#ifdef _LIBC - DEBUG_PRINT2 ("(to %p).\n", p); -#else - DEBUG_PRINT2 ("(to 0x%x).\n", p); -#endif - NEXT; - - - /* We need this opcode so we can detect where alternatives end - in `group_match_null_string_p' et al. */ - CASE (jump_past_alt): - DEBUG_PRINT1 ("EXECUTING jump_past_alt.\n"); - goto unconditional_jump; - - - /* Normally, the on_failure_jump pushes a failure point, which - then gets popped at pop_failure_jump. We will end up at - pop_failure_jump, also, and with a pattern of, say, `a+', we - are skipping over the on_failure_jump, so we have to push - something meaningless for pop_failure_jump to pop. */ - CASE (dummy_failure_jump): - DEBUG_PRINT1 ("EXECUTING dummy_failure_jump.\n"); - /* It doesn't matter what we push for the string here. What - the code at `fail' tests is the value for the pattern. */ - PUSH_FAILURE_POINT (NULL, NULL, -2); - goto unconditional_jump; - - - /* At the end of an alternative, we need to push a dummy failure - point in case we are followed by a `pop_failure_jump', because - we don't want the failure point for the alternative to be - popped. For example, matching `(a|ab)*' against `aab' - requires that we match the `ab' alternative. */ - CASE (push_dummy_failure): - DEBUG_PRINT1 ("EXECUTING push_dummy_failure.\n"); - /* See comments just above at `dummy_failure_jump' about the - two zeroes. */ - PUSH_FAILURE_POINT (NULL, NULL, -2); - NEXT; - - /* Have to succeed matching what follows at least n times. - After that, handle like `on_failure_jump'. */ - CASE (succeed_n): - EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE); - DEBUG_PRINT2 ("EXECUTING succeed_n %d.\n", mcnt); - - assert (mcnt >= 0); - /* Originally, this is how many times we HAVE to succeed. */ - if (mcnt > 0) - { - mcnt--; - p += OFFSET_ADDRESS_SIZE; - STORE_NUMBER_AND_INCR (p, mcnt); -#ifdef _LIBC - DEBUG_PRINT3 (" Setting %p to %d.\n", p - OFFSET_ADDRESS_SIZE - , mcnt); -#else - DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p - OFFSET_ADDRESS_SIZE - , mcnt); -#endif - } - else if (mcnt == 0) - { -#ifdef _LIBC - DEBUG_PRINT2 (" Setting two bytes from %p to no_op.\n", - p + OFFSET_ADDRESS_SIZE); -#else - DEBUG_PRINT2 (" Setting two bytes from 0x%x to no_op.\n", - p + OFFSET_ADDRESS_SIZE); -#endif /* _LIBC */ - -#ifdef WCHAR - p[1] = (UCHAR_T) no_op; -#else - p[2] = (UCHAR_T) no_op; - p[3] = (UCHAR_T) no_op; -#endif /* WCHAR */ - goto on_failure; - } - NEXT; - - CASE (jump_n): - EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE); - DEBUG_PRINT2 ("EXECUTING jump_n %d.\n", mcnt); - - /* Originally, this is how many times we CAN jump. */ - if (mcnt) - { - mcnt--; - STORE_NUMBER (p + OFFSET_ADDRESS_SIZE, mcnt); - -#ifdef _LIBC - DEBUG_PRINT3 (" Setting %p to %d.\n", p + OFFSET_ADDRESS_SIZE, - mcnt); -#else - DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p + OFFSET_ADDRESS_SIZE, - mcnt); -#endif /* _LIBC */ - goto unconditional_jump; - } - /* If don't have to jump any more, skip over the rest of command. */ - else - p += 2 * OFFSET_ADDRESS_SIZE; - NEXT; - - CASE (set_number_at): - { - DEBUG_PRINT1 ("EXECUTING set_number_at.\n"); - - EXTRACT_NUMBER_AND_INCR (mcnt, p); - p1 = p + mcnt; - EXTRACT_NUMBER_AND_INCR (mcnt, p); -#ifdef _LIBC - DEBUG_PRINT3 (" Setting %p to %d.\n", p1, mcnt); -#else - DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p1, mcnt); -#endif - STORE_NUMBER (p1, mcnt); - NEXT; - } - -#if 0 - /* The DEC Alpha C compiler 3.x generates incorrect code for the - test WORDCHAR_P (d - 1) != WORDCHAR_P (d) in the expansion of - AT_WORD_BOUNDARY, so this code is disabled. Expanding the - macro and introducing temporary variables works around the bug. */ - - CASE (wordbound): - DEBUG_PRINT1 ("EXECUTING wordbound.\n"); - if (AT_WORD_BOUNDARY (d)) - { - NEXT; - } - goto fail; - - CASE (notwordbound): - DEBUG_PRINT1 ("EXECUTING notwordbound.\n"); - if (AT_WORD_BOUNDARY (d)) - goto fail; - NEXT; -#else - CASE (wordbound): - { - boolean prevchar, thischar; - - DEBUG_PRINT1 ("EXECUTING wordbound.\n"); - if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d)) - { - NEXT; - } - - prevchar = WORDCHAR_P (d - 1); - thischar = WORDCHAR_P (d); - if (prevchar != thischar) - { - NEXT; - } - goto fail; - } - - CASE (notwordbound): - { - boolean prevchar, thischar; - - DEBUG_PRINT1 ("EXECUTING notwordbound.\n"); - if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d)) - goto fail; - - prevchar = WORDCHAR_P (d - 1); - thischar = WORDCHAR_P (d); - if (prevchar != thischar) - goto fail; - NEXT; - } -#endif - - CASE (wordbeg): - DEBUG_PRINT1 ("EXECUTING wordbeg.\n"); - if (!AT_STRINGS_END (d) && WORDCHAR_P (d) - && (AT_STRINGS_BEG (d) || !WORDCHAR_P (d - 1))) - { - NEXT; - } - goto fail; - - CASE (wordend): - DEBUG_PRINT1 ("EXECUTING wordend.\n"); - if (!AT_STRINGS_BEG (d) && WORDCHAR_P (d - 1) - && (AT_STRINGS_END (d) || !WORDCHAR_P (d))) - { - NEXT; - } - goto fail; - -#ifdef emacs - CASE (before_dot): - DEBUG_PRINT1 ("EXECUTING before_dot.\n"); - if (PTR_CHAR_POS ((unsigned char *) d) >= point) - goto fail; - NEXT; - - CASE (at_dot): - DEBUG_PRINT1 ("EXECUTING at_dot.\n"); - if (PTR_CHAR_POS ((unsigned char *) d) != point) - goto fail; - NEXT; - - CASE (after_dot): - DEBUG_PRINT1 ("EXECUTING after_dot.\n"); - if (PTR_CHAR_POS ((unsigned char *) d) <= point) - goto fail; - NEXT; - - CASE (syntaxspec): - DEBUG_PRINT2 ("EXECUTING syntaxspec %d.\n", mcnt); - mcnt = *p++; - goto matchsyntax; - - CASE (wordchar): - DEBUG_PRINT1 ("EXECUTING Emacs wordchar.\n"); - mcnt = (int) Sword; - matchsyntax: - PREFETCH (); - /* Can't use *d++ here; SYNTAX may be an unsafe macro. */ - d++; - if (SYNTAX (d[-1]) != (enum syntaxcode) mcnt) - goto fail; - SET_REGS_MATCHED (); - NEXT; - - CASE (notsyntaxspec): - DEBUG_PRINT2 ("EXECUTING notsyntaxspec %d.\n", mcnt); - mcnt = *p++; - goto matchnotsyntax; - - CASE (notwordchar): - DEBUG_PRINT1 ("EXECUTING Emacs notwordchar.\n"); - mcnt = (int) Sword; - matchnotsyntax: - PREFETCH (); - /* Can't use *d++ here; SYNTAX may be an unsafe macro. */ - d++; - if (SYNTAX (d[-1]) == (enum syntaxcode) mcnt) - goto fail; - SET_REGS_MATCHED (); - NEXT; - -#else /* not emacs */ - CASE (wordchar): - DEBUG_PRINT1 ("EXECUTING non-Emacs wordchar.\n"); - PREFETCH (); - if (!WORDCHAR_P (d)) - goto fail; - SET_REGS_MATCHED (); - d++; - NEXT; - - CASE (notwordchar): - DEBUG_PRINT1 ("EXECUTING non-Emacs notwordchar.\n"); - PREFETCH (); - if (WORDCHAR_P (d)) - goto fail; - SET_REGS_MATCHED (); - d++; - NEXT; -#endif /* not emacs */ - -#ifndef __GNUC__ - default: - abort (); - } - continue; /* Successfully executed one pattern command; keep going. */ -#endif - - - /* We goto here if a matching operation fails. */ - fail: - if (!FAIL_STACK_EMPTY ()) - { /* A restart point is known. Restore to that state. */ - DEBUG_PRINT1 ("\nFAIL:\n"); - POP_FAILURE_POINT (d, p, - lowest_active_reg, highest_active_reg, - regstart, regend, reg_info); - - /* If this failure point is a dummy, try the next one. */ - if (!p) - goto fail; - - /* If we failed to the end of the pattern, don't examine *p. */ - assert (p <= pend); - if (p < pend) - { - boolean is_a_jump_n = false; - - /* If failed to a backwards jump that's part of a repetition - loop, need to pop this failure point and use the next one. */ - switch ((re_opcode_t) *p) - { - case jump_n: - is_a_jump_n = true; - case maybe_pop_jump: - case pop_failure_jump: - case jump: - p1 = p + 1; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - p1 += mcnt; - - if ((is_a_jump_n && (re_opcode_t) *p1 == succeed_n) - || (!is_a_jump_n - && (re_opcode_t) *p1 == on_failure_jump)) - goto fail; - break; - default: - /* do nothing */ ; - } - } - - if (d >= string1 && d <= end1) - dend = end_match_1; - } - else - break; /* Matching at this starting point really fails. */ - } /* for (;;) */ - - if (best_regs_set) - goto restore_best_regs; - - FREE_VARIABLES (); - - return -1; /* Failure to match. */ -} /* re_match_2 */ - -/* Subroutine definitions for re_match_2. */ - - -/* We are passed P pointing to a register number after a start_memory. - - Return true if the pattern up to the corresponding stop_memory can - match the empty string, and false otherwise. - - If we find the matching stop_memory, sets P to point to one past its number. - Otherwise, sets P to an undefined byte less than or equal to END. - - We don't handle duplicates properly (yet). */ - -static boolean -PREFIX(group_match_null_string_p) (UCHAR_T **p, UCHAR_T *end, - PREFIX(register_info_type) *reg_info) -{ - int mcnt; - /* Point to after the args to the start_memory. */ - UCHAR_T *p1 = *p + 2; - - while (p1 < end) - { - /* Skip over opcodes that can match nothing, and return true or - false, as appropriate, when we get to one that can't, or to the - matching stop_memory. */ - - switch ((re_opcode_t) *p1) - { - /* Could be either a loop or a series of alternatives. */ - case on_failure_jump: - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - - /* If the next operation is not a jump backwards in the - pattern. */ - - if (mcnt >= 0) - { - /* Go through the on_failure_jumps of the alternatives, - seeing if any of the alternatives cannot match nothing. - The last alternative starts with only a jump, - whereas the rest start with on_failure_jump and end - with a jump, e.g., here is the pattern for `a|b|c': - - /on_failure_jump/0/6/exactn/1/a/jump_past_alt/0/6 - /on_failure_jump/0/6/exactn/1/b/jump_past_alt/0/3 - /exactn/1/c - - So, we have to first go through the first (n-1) - alternatives and then deal with the last one separately. */ - - - /* Deal with the first (n-1) alternatives, which start - with an on_failure_jump (see above) that jumps to right - past a jump_past_alt. */ - - while ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] == - jump_past_alt) - { - /* `mcnt' holds how many bytes long the alternative - is, including the ending `jump_past_alt' and - its number. */ - - if (!PREFIX(alt_match_null_string_p) (p1, p1 + mcnt - - (1 + OFFSET_ADDRESS_SIZE), - reg_info)) - return false; - - /* Move to right after this alternative, including the - jump_past_alt. */ - p1 += mcnt; - - /* Break if it's the beginning of an n-th alternative - that doesn't begin with an on_failure_jump. */ - if ((re_opcode_t) *p1 != on_failure_jump) - break; - - /* Still have to check that it's not an n-th - alternative that starts with an on_failure_jump. */ - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - if ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] != - jump_past_alt) - { - /* Get to the beginning of the n-th alternative. */ - p1 -= 1 + OFFSET_ADDRESS_SIZE; - break; - } - } - - /* Deal with the last alternative: go back and get number - of the `jump_past_alt' just before it. `mcnt' contains - the length of the alternative. */ - EXTRACT_NUMBER (mcnt, p1 - OFFSET_ADDRESS_SIZE); - - if (!PREFIX(alt_match_null_string_p) (p1, p1 + mcnt, reg_info)) - return false; - - p1 += mcnt; /* Get past the n-th alternative. */ - } /* if mcnt > 0 */ - break; - - - case stop_memory: - assert (p1[1] == **p); - *p = p1 + 2; - return true; - - - default: - if (!PREFIX(common_op_match_null_string_p) (&p1, end, reg_info)) - return false; - } - } /* while p1 < end */ - - return false; -} /* group_match_null_string_p */ - - -/* Similar to group_match_null_string_p, but doesn't deal with alternatives: - It expects P to be the first byte of a single alternative and END one - byte past the last. The alternative can contain groups. */ - -static boolean -PREFIX(alt_match_null_string_p) (UCHAR_T *p, UCHAR_T *end, - PREFIX(register_info_type) *reg_info) -{ - int mcnt; - UCHAR_T *p1 = p; - - while (p1 < end) - { - /* Skip over opcodes that can match nothing, and break when we get - to one that can't. */ - - switch ((re_opcode_t) *p1) - { - /* It's a loop. */ - case on_failure_jump: - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - p1 += mcnt; - break; - - default: - if (!PREFIX(common_op_match_null_string_p) (&p1, end, reg_info)) - return false; - } - } /* while p1 < end */ - - return true; -} /* alt_match_null_string_p */ - - -/* Deals with the ops common to group_match_null_string_p and - alt_match_null_string_p. - - Sets P to one after the op and its arguments, if any. */ - -static boolean -PREFIX(common_op_match_null_string_p) (UCHAR_T **p, UCHAR_T *end, - PREFIX(register_info_type) *reg_info) -{ - int mcnt; - boolean ret; - int reg_no; - UCHAR_T *p1 = *p; - - switch ((re_opcode_t) *p1++) - { - case no_op: - case begline: - case endline: - case begbuf: - case endbuf: - case wordbeg: - case wordend: - case wordbound: - case notwordbound: -#ifdef emacs - case before_dot: - case at_dot: - case after_dot: -#endif - break; - - case start_memory: - reg_no = *p1; - assert (reg_no > 0 && reg_no <= MAX_REGNUM); - ret = PREFIX(group_match_null_string_p) (&p1, end, reg_info); - - /* Have to set this here in case we're checking a group which - contains a group and a back reference to it. */ - - if (REG_MATCH_NULL_STRING_P (reg_info[reg_no]) == MATCH_NULL_UNSET_VALUE) - REG_MATCH_NULL_STRING_P (reg_info[reg_no]) = ret; - - if (!ret) - return false; - break; - - /* If this is an optimized succeed_n for zero times, make the jump. */ - case jump: - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - if (mcnt >= 0) - p1 += mcnt; - else - return false; - break; - - case succeed_n: - /* Get to the number of times to succeed. */ - p1 += OFFSET_ADDRESS_SIZE; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - - if (mcnt == 0) - { - p1 -= 2 * OFFSET_ADDRESS_SIZE; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - p1 += mcnt; - } - else - return false; - break; - - case duplicate: - if (!REG_MATCH_NULL_STRING_P (reg_info[*p1])) - return false; - break; - - case set_number_at: - p1 += 2 * OFFSET_ADDRESS_SIZE; - - default: - /* All other opcodes mean we cannot match the empty string. */ - return false; - } - - *p = p1; - return true; -} /* common_op_match_null_string_p */ - - -/* Return zero if TRANSLATE[S1] and TRANSLATE[S2] are identical for LEN - bytes; nonzero otherwise. */ - -static int -PREFIX(bcmp_translate) (const CHAR_T *s1, const CHAR_T *s2, - register int len, - RE_TRANSLATE_TYPE translate) -{ - register const UCHAR_T *p1 = (const UCHAR_T *) s1; - register const UCHAR_T *p2 = (const UCHAR_T *) s2; - while (len) - { -#ifdef WCHAR - if (((*p1<=0xff)?translate[*p1++]:*p1++) - != ((*p2<=0xff)?translate[*p2++]:*p2++)) - return 1; -#else /* BYTE */ - if (translate[*p1++] != translate[*p2++]) return 1; -#endif /* WCHAR */ - len--; - } - return 0; -} - - -#else /* not INSIDE_RECURSION */ - -/* Entry points for GNU code. */ - -/* re_compile_pattern is the GNU regular expression compiler: it - compiles PATTERN (of length SIZE) and puts the result in BUFP. - Returns 0 if the pattern was valid, otherwise an error string. - - Assumes the `allocated' (and perhaps `buffer') and `translate' fields - are set in BUFP on entry. - - We call regex_compile to do the actual compilation. */ - -const char * -re_compile_pattern (const char *pattern, - size_t length, - struct re_pattern_buffer *bufp) -{ - reg_errcode_t ret; - - /* GNU code is written to assume at least RE_NREGS registers will be set - (and at least one extra will be -1). */ - bufp->regs_allocated = REGS_UNALLOCATED; - - /* And GNU code determines whether or not to get register information - by passing null for the REGS argument to re_match, etc., not by - setting no_sub. */ - bufp->no_sub = 0; - - /* Match anchors at newline. */ - bufp->newline_anchor = 1; - -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - ret = wcs_regex_compile (pattern, length, re_syntax_options, bufp); - else -# endif - ret = byte_regex_compile (pattern, length, re_syntax_options, bufp); - - if (!ret) - return NULL; - return gettext (re_error_msgid + re_error_msgid_idx[(int) ret]); -} -#ifdef _LIBC -weak_alias (__re_compile_pattern, re_compile_pattern) -#endif - -/* Entry points compatible with 4.2 BSD regex library. We don't define - them unless specifically requested. */ - -#if defined _REGEX_RE_COMP || defined _LIBC - -/* BSD has one and only one pattern buffer. */ -static struct re_pattern_buffer re_comp_buf; - -char * -#ifdef _LIBC -/* Make these definitions weak in libc, so POSIX programs can redefine - these names if they don't use our functions, and still use - regcomp/regexec below without link errors. */ -weak_function -#endif -re_comp (const char *s) -{ - reg_errcode_t ret; - - if (!s) - { - if (!re_comp_buf.buffer) - return gettext ("No previous regular expression"); - return 0; - } - - if (!re_comp_buf.buffer) - { - re_comp_buf.buffer = malloc (200); - if (re_comp_buf.buffer == NULL) - return (char *) gettext (re_error_msgid - + re_error_msgid_idx[(int) REG_ESPACE]); - re_comp_buf.allocated = 200; - - re_comp_buf.fastmap = malloc (1 << BYTEWIDTH); - if (re_comp_buf.fastmap == NULL) - return (char *) gettext (re_error_msgid - + re_error_msgid_idx[(int) REG_ESPACE]); - } - - /* Since `re_exec' always passes NULL for the `regs' argument, we - don't need to initialize the pattern buffer fields which affect it. */ - - /* Match anchors at newlines. */ - re_comp_buf.newline_anchor = 1; - -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - ret = wcs_regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf); - else -# endif - ret = byte_regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf); - - if (!ret) - return NULL; - - /* Yes, we're discarding `const' here if !HAVE_LIBINTL. */ - return (char *) gettext (re_error_msgid + re_error_msgid_idx[(int) ret]); -} - - -int -#ifdef _LIBC -weak_function -#endif -re_exec (const char *s) -{ - const int len = strlen (s); - return - 0 <= re_search (&re_comp_buf, s, len, 0, len, 0); -} - -#endif /* _REGEX_RE_COMP */ - -/* POSIX.2 functions. Don't define these for Emacs. */ - -#ifndef emacs - -/* regcomp takes a regular expression as a string and compiles it. - - PREG is a regex_t *. We do not expect any fields to be initialized, - since POSIX says we shouldn't. Thus, we set - - `buffer' to the compiled pattern; - `used' to the length of the compiled pattern; - `syntax' to RE_SYNTAX_POSIX_EXTENDED if the - REG_EXTENDED bit in CFLAGS is set; otherwise, to - RE_SYNTAX_POSIX_BASIC; - `newline_anchor' to REG_NEWLINE being set in CFLAGS; - `fastmap' to an allocated space for the fastmap; - `fastmap_accurate' to zero; - `re_nsub' to the number of subexpressions in PATTERN. - - PATTERN is the address of the pattern string. - - CFLAGS is a series of bits which affect compilation. - - If REG_EXTENDED is set, we use POSIX extended syntax; otherwise, we - use POSIX basic syntax. - - If REG_NEWLINE is set, then . and [^...] don't match newline. - Also, regexec will try a match beginning after every newline. - - If REG_ICASE is set, then we considers upper- and lowercase - versions of letters to be equivalent when matching. - - If REG_NOSUB is set, then when PREG is passed to regexec, that - routine will report only success or failure, and nothing about the - registers. - - It returns 0 if it succeeds, nonzero if it doesn't. (See regex.h for - the return codes and their meanings.) */ - -int -regcomp (regex_t *preg, const char *pattern, int cflags) -{ - reg_errcode_t ret; - reg_syntax_t syntax - = (cflags & REG_EXTENDED) ? - RE_SYNTAX_POSIX_EXTENDED : RE_SYNTAX_POSIX_BASIC; - - /* regex_compile will allocate the space for the compiled pattern. */ - preg->buffer = 0; - preg->allocated = 0; - preg->used = 0; - - /* Try to allocate space for the fastmap. */ - preg->fastmap = malloc (1 << BYTEWIDTH); - - if (cflags & REG_ICASE) - { - unsigned i; - - preg->translate = malloc (CHAR_SET_SIZE - * sizeof (*(RE_TRANSLATE_TYPE)0)); - if (preg->translate == NULL) - return (int) REG_ESPACE; - - /* Map uppercase characters to corresponding lowercase ones. */ - for (i = 0; i < CHAR_SET_SIZE; i++) - preg->translate[i] = ISUPPER (i) ? TOLOWER (i) : i; - } - else - preg->translate = NULL; - - /* If REG_NEWLINE is set, newlines are treated differently. */ - if (cflags & REG_NEWLINE) - { /* REG_NEWLINE implies neither . nor [^...] match newline. */ - syntax &= ~RE_DOT_NEWLINE; - syntax |= RE_HAT_LISTS_NOT_NEWLINE; - /* It also changes the matching behavior. */ - preg->newline_anchor = 1; - } - else - preg->newline_anchor = 0; - - preg->no_sub = !!(cflags & REG_NOSUB); - - /* POSIX says a null character in the pattern terminates it, so we - can use strlen here in compiling the pattern. */ -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - ret = wcs_regex_compile (pattern, strlen (pattern), syntax, preg); - else -# endif - ret = byte_regex_compile (pattern, strlen (pattern), syntax, preg); - - /* POSIX doesn't distinguish between an unmatched open-group and an - unmatched close-group: both are REG_EPAREN. */ - if (ret == REG_ERPAREN) ret = REG_EPAREN; - - if (ret == REG_NOERROR && preg->fastmap) - { - /* Compute the fastmap now, since regexec cannot modify the pattern - buffer. */ - if (re_compile_fastmap (preg) == -2) - { - /* Some error occurred while computing the fastmap, just forget - about it. */ - free (preg->fastmap); - preg->fastmap = NULL; - } - } - - return (int) ret; -} -#ifdef _LIBC -weak_alias (__regcomp, regcomp) -#endif - - -/* regexec searches for a given pattern, specified by PREG, in the - string STRING. - - If NMATCH is zero or REG_NOSUB was set in the cflags argument to - `regcomp', we ignore PMATCH. Otherwise, we assume PMATCH has at - least NMATCH elements, and we set them to the offsets of the - corresponding matched substrings. - - EFLAGS specifies `execution flags' which affect matching: if - REG_NOTBOL is set, then ^ does not match at the beginning of the - string; if REG_NOTEOL is set, then $ does not match at the end. - - We return 0 if we find a match and REG_NOMATCH if not. */ - -int -regexec (const regex_t *preg, const char *string, - size_t nmatch, regmatch_t pmatch[], int eflags) -{ - int ret; - struct re_registers regs; - regex_t private_preg; - int len = strlen (string); - boolean want_reg_info = !preg->no_sub && nmatch > 0; - - private_preg = *preg; - - private_preg.not_bol = !!(eflags & REG_NOTBOL); - private_preg.not_eol = !!(eflags & REG_NOTEOL); - - /* The user has told us exactly how many registers to return - information about, via `nmatch'. We have to pass that on to the - matching routines. */ - private_preg.regs_allocated = REGS_FIXED; - - if (want_reg_info) - { - regs.num_regs = nmatch; - regs.start = TALLOC (nmatch * 2, regoff_t); - if (regs.start == NULL) - return (int) REG_NOMATCH; - regs.end = regs.start + nmatch; - } - - /* Perform the searching operation. */ - ret = re_search (&private_preg, string, len, - /* start: */ 0, /* range: */ len, - want_reg_info ? ®s : 0); - - /* Copy the register information to the POSIX structure. */ - if (want_reg_info) - { - if (ret >= 0) - { - unsigned r; - - for (r = 0; r < nmatch; r++) - { - pmatch[r].rm_so = regs.start[r]; - pmatch[r].rm_eo = regs.end[r]; - } - } - - /* If we needed the temporary register info, free the space now. */ - free (regs.start); - } - - /* We want zero return to mean success, unlike `re_search'. */ - return ret >= 0 ? (int) REG_NOERROR : (int) REG_NOMATCH; -} -#ifdef _LIBC -weak_alias (__regexec, regexec) -#endif - - -/* Returns a message corresponding to an error code, ERRCODE, returned - from either regcomp or regexec. We don't use PREG here. */ - -size_t -regerror (int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size) -{ - const char *msg; - size_t msg_size; - - if (errcode < 0 - || errcode >= (int) (sizeof (re_error_msgid_idx) - / sizeof (re_error_msgid_idx[0]))) - /* Only error codes returned by the rest of the code should be passed - to this routine. If we are given anything else, or if other regex - code generates an invalid error code, then the program has a bug. - Dump core so we can fix it. */ - abort (); - - msg = gettext (re_error_msgid + re_error_msgid_idx[errcode]); - - msg_size = strlen (msg) + 1; /* Includes the null. */ - - if (errbuf_size != 0) - { - if (msg_size > errbuf_size) - { -#if defined HAVE_MEMPCPY || defined _LIBC - *((char *) __mempcpy (errbuf, msg, errbuf_size - 1)) = '\0'; -#else - memcpy (errbuf, msg, errbuf_size - 1); - errbuf[errbuf_size - 1] = 0; -#endif - } - else - memcpy (errbuf, msg, msg_size); - } - - return msg_size; -} -#ifdef _LIBC -weak_alias (__regerror, regerror) -#endif - - -/* Free dynamically allocated space used by PREG. */ - -void -regfree (regex_t *preg) -{ - if (preg->buffer != NULL) - free (preg->buffer); - preg->buffer = NULL; - - preg->allocated = 0; - preg->used = 0; - - if (preg->fastmap != NULL) - free (preg->fastmap); - preg->fastmap = NULL; - preg->fastmap_accurate = 0; - - if (preg->translate != NULL) - free (preg->translate); - preg->translate = NULL; -} -#ifdef _LIBC -weak_alias (__regfree, regfree) -#endif - -#endif /* not emacs */ - -#endif /* not INSIDE_RECURSION */ - - -#undef STORE_NUMBER -#undef STORE_NUMBER_AND_INCR -#undef EXTRACT_NUMBER -#undef EXTRACT_NUMBER_AND_INCR - -#undef DEBUG_PRINT_COMPILED_PATTERN -#undef DEBUG_PRINT_DOUBLE_STRING - -#undef INIT_FAIL_STACK -#undef RESET_FAIL_STACK -#undef DOUBLE_FAIL_STACK -#undef PUSH_PATTERN_OP -#undef PUSH_FAILURE_POINTER -#undef PUSH_FAILURE_INT -#undef PUSH_FAILURE_ELT -#undef POP_FAILURE_POINTER -#undef POP_FAILURE_INT -#undef POP_FAILURE_ELT -#undef DEBUG_PUSH -#undef DEBUG_POP -#undef PUSH_FAILURE_POINT -#undef POP_FAILURE_POINT - -#undef REG_UNSET_VALUE -#undef REG_UNSET - -#undef PATFETCH -#undef PATFETCH_RAW -#undef PATUNFETCH -#undef TRANSLATE - -#undef INIT_BUF_SIZE -#undef GET_BUFFER_SPACE -#undef BUF_PUSH -#undef BUF_PUSH_2 -#undef BUF_PUSH_3 -#undef STORE_JUMP -#undef STORE_JUMP2 -#undef INSERT_JUMP -#undef INSERT_JUMP2 -#undef EXTEND_BUFFER -#undef GET_UNSIGNED_NUMBER -#undef FREE_STACK_RETURN - -# undef POINTER_TO_OFFSET -# undef MATCHING_IN_FRST_STRING -# undef PREFETCH -# undef AT_STRINGS_BEG -# undef AT_STRINGS_END -# undef WORDCHAR_P -# undef FREE_VAR -# undef FREE_VARIABLES -# undef NO_HIGHEST_ACTIVE_REG -# undef NO_LOWEST_ACTIVE_REG - -# undef CHAR_T -# undef UCHAR_T -# undef COMPILED_BUFFER_VAR -# undef OFFSET_ADDRESS_SIZE -# undef CHAR_CLASS_SIZE -# undef PREFIX -# undef ARG_PREFIX -# undef PUT_CHAR -# undef BYTE -# undef WCHAR - -# define DEFINED_ONCE diff --git a/contrib/diff/lib/regex.h b/contrib/diff/lib/regex.h deleted file mode 100644 index b4bbc01..0000000 --- a/contrib/diff/lib/regex.h +++ /dev/null @@ -1,556 +0,0 @@ -/* Definitions for data structures and routines for the regular - expression library. - Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _REGEX_H -#define _REGEX_H 1 - -#include <sys/types.h> - -/* Allow the use in C++ code. */ -#ifdef __cplusplus -extern "C" { -#endif - -/* POSIX says that <sys/types.h> must be included (by the caller) before - <regex.h>. */ - -#if !defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE && defined VMS -/* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it - should be there. */ -# include <stddef.h> -#endif - -/* The following two types have to be signed and unsigned integer type - wide enough to hold a value of a pointer. For most ANSI compilers - ptrdiff_t and size_t should be likely OK. Still size of these two - types is 2 for Microsoft C. Ugh... */ -typedef long int s_reg_t; -typedef unsigned long int active_reg_t; - -/* The following bits are used to determine the regexp syntax we - recognize. The set/not-set meanings are chosen so that Emacs syntax - remains the value 0. The bits are given in alphabetical order, and - the definitions shifted by one from the previous bit; thus, when we - add or remove a bit, only one other definition need change. */ -typedef unsigned long int reg_syntax_t; - -/* If this bit is not set, then \ inside a bracket expression is literal. - If set, then such a \ quotes the following character. */ -#define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1) - -/* If this bit is not set, then + and ? are operators, and \+ and \? are - literals. - If set, then \+ and \? are operators and + and ? are literals. */ -#define RE_BK_PLUS_QM (RE_BACKSLASH_ESCAPE_IN_LISTS << 1) - -/* If this bit is set, then character classes are supported. They are: - [:alpha:], [:upper:], [:lower:], [:digit:], [:alnum:], [:xdigit:], - [:space:], [:print:], [:punct:], [:graph:], and [:cntrl:]. - If not set, then character classes are not supported. */ -#define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1) - -/* If this bit is set, then ^ and $ are always anchors (outside bracket - expressions, of course). - If this bit is not set, then it depends: - ^ is an anchor if it is at the beginning of a regular - expression or after an open-group or an alternation operator; - $ is an anchor if it is at the end of a regular expression, or - before a close-group or an alternation operator. - - This bit could be (re)combined with RE_CONTEXT_INDEP_OPS, because - POSIX draft 11.2 says that * etc. in leading positions is undefined. - We already implemented a previous draft which made those constructs - invalid, though, so we haven't changed the code back. */ -#define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1) - -/* If this bit is set, then special characters are always special - regardless of where they are in the pattern. - If this bit is not set, then special characters are special only in - some contexts; otherwise they are ordinary. Specifically, - * + ? and intervals are only special when not after the beginning, - open-group, or alternation operator. */ -#define RE_CONTEXT_INDEP_OPS (RE_CONTEXT_INDEP_ANCHORS << 1) - -/* If this bit is set, then *, +, ?, and { cannot be first in an re or - immediately after an alternation or begin-group operator. */ -#define RE_CONTEXT_INVALID_OPS (RE_CONTEXT_INDEP_OPS << 1) - -/* If this bit is set, then . matches newline. - If not set, then it doesn't. */ -#define RE_DOT_NEWLINE (RE_CONTEXT_INVALID_OPS << 1) - -/* If this bit is set, then . doesn't match NUL. - If not set, then it does. */ -#define RE_DOT_NOT_NULL (RE_DOT_NEWLINE << 1) - -/* If this bit is set, nonmatching lists [^...] do not match newline. - If not set, they do. */ -#define RE_HAT_LISTS_NOT_NEWLINE (RE_DOT_NOT_NULL << 1) - -/* If this bit is set, either \{...\} or {...} defines an - interval, depending on RE_NO_BK_BRACES. - If not set, \{, \}, {, and } are literals. */ -#define RE_INTERVALS (RE_HAT_LISTS_NOT_NEWLINE << 1) - -/* If this bit is set, +, ? and | aren't recognized as operators. - If not set, they are. */ -#define RE_LIMITED_OPS (RE_INTERVALS << 1) - -/* If this bit is set, newline is an alternation operator. - If not set, newline is literal. */ -#define RE_NEWLINE_ALT (RE_LIMITED_OPS << 1) - -/* If this bit is set, then `{...}' defines an interval, and \{ and \} - are literals. - If not set, then `\{...\}' defines an interval. */ -#define RE_NO_BK_BRACES (RE_NEWLINE_ALT << 1) - -/* If this bit is set, (...) defines a group, and \( and \) are literals. - If not set, \(...\) defines a group, and ( and ) are literals. */ -#define RE_NO_BK_PARENS (RE_NO_BK_BRACES << 1) - -/* If this bit is set, then \<digit> matches <digit>. - If not set, then \<digit> is a back-reference. */ -#define RE_NO_BK_REFS (RE_NO_BK_PARENS << 1) - -/* If this bit is set, then | is an alternation operator, and \| is literal. - If not set, then \| is an alternation operator, and | is literal. */ -#define RE_NO_BK_VBAR (RE_NO_BK_REFS << 1) - -/* If this bit is set, then an ending range point collating higher - than the starting range point, as in [z-a], is invalid. - If not set, then when ending range point collates higher than the - starting range point, the range is ignored. */ -#define RE_NO_EMPTY_RANGES (RE_NO_BK_VBAR << 1) - -/* If this bit is set, then an unmatched ) is ordinary. - If not set, then an unmatched ) is invalid. */ -#define RE_UNMATCHED_RIGHT_PAREN_ORD (RE_NO_EMPTY_RANGES << 1) - -/* If this bit is set, succeed as soon as we match the whole pattern, - without further backtracking. */ -#define RE_NO_POSIX_BACKTRACKING (RE_UNMATCHED_RIGHT_PAREN_ORD << 1) - -/* If this bit is set, do not process the GNU regex operators. - If not set, then the GNU regex operators are recognized. */ -#define RE_NO_GNU_OPS (RE_NO_POSIX_BACKTRACKING << 1) - -/* If this bit is set, turn on internal regex debugging. - If not set, and debugging was on, turn it off. - This only works if regex.c is compiled -DDEBUG. - We define this bit always, so that all that's needed to turn on - debugging is to recompile regex.c; the calling code can always have - this bit set, and it won't affect anything in the normal case. */ -#define RE_DEBUG (RE_NO_GNU_OPS << 1) - -/* If this bit is set, a syntactically invalid interval is treated as - a string of ordinary characters. For example, the ERE 'a{1' is - treated as 'a\{1'. */ -#define RE_INVALID_INTERVAL_ORD (RE_DEBUG << 1) - -/* If this bit is set, then ignore case when matching. - If not set, then case is significant. */ -#define RE_ICASE (RE_INVALID_INTERVAL_ORD << 1) - -/* This global variable defines the particular regexp syntax to use (for - some interfaces). When a regexp is compiled, the syntax used is - stored in the pattern buffer, so changing this does not affect - already-compiled regexps. */ -extern reg_syntax_t re_syntax_options; - -/* Define combinations of the above bits for the standard possibilities. - (The [[[ comments delimit what gets put into the Texinfo file, so - don't delete them!) */ -/* [[[begin syntaxes]]] */ -#define RE_SYNTAX_EMACS 0 - -#define RE_SYNTAX_AWK \ - (RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DOT_NOT_NULL \ - | RE_NO_BK_PARENS | RE_NO_BK_REFS \ - | RE_NO_BK_VBAR | RE_NO_EMPTY_RANGES \ - | RE_DOT_NEWLINE | RE_CONTEXT_INDEP_ANCHORS \ - | RE_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS) - -#define RE_SYNTAX_GNU_AWK \ - ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG) \ - & ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS \ - | RE_CONTEXT_INVALID_OPS )) - -#define RE_SYNTAX_POSIX_AWK \ - (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \ - | RE_INTERVALS | RE_NO_GNU_OPS) - -#define RE_SYNTAX_GREP \ - (RE_BK_PLUS_QM | RE_CHAR_CLASSES \ - | RE_HAT_LISTS_NOT_NEWLINE | RE_INTERVALS \ - | RE_NEWLINE_ALT) - -#define RE_SYNTAX_EGREP \ - (RE_CHAR_CLASSES | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INDEP_OPS | RE_HAT_LISTS_NOT_NEWLINE \ - | RE_NEWLINE_ALT | RE_NO_BK_PARENS \ - | RE_NO_BK_VBAR) - -#define RE_SYNTAX_POSIX_EGREP \ - (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES \ - | RE_INVALID_INTERVAL_ORD) - -/* P1003.2/D11.2, section 4.20.7.1, lines 5078ff. */ -#define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC - -#define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC - -/* Syntax bits common to both basic and extended POSIX regex syntax. */ -#define _RE_SYNTAX_POSIX_COMMON \ - (RE_CHAR_CLASSES | RE_DOT_NEWLINE | RE_DOT_NOT_NULL \ - | RE_INTERVALS | RE_NO_EMPTY_RANGES) - -#define RE_SYNTAX_POSIX_BASIC \ - (_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM) - -/* Differs from ..._POSIX_BASIC only in that RE_BK_PLUS_QM becomes - RE_LIMITED_OPS, i.e., \? \+ \| are not recognized. Actually, this - isn't minimal, since other operators, such as \`, aren't disabled. */ -#define RE_SYNTAX_POSIX_MINIMAL_BASIC \ - (_RE_SYNTAX_POSIX_COMMON | RE_LIMITED_OPS) - -#define RE_SYNTAX_POSIX_EXTENDED \ - (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INDEP_OPS | RE_NO_BK_BRACES \ - | RE_NO_BK_PARENS | RE_NO_BK_VBAR \ - | RE_CONTEXT_INVALID_OPS | RE_UNMATCHED_RIGHT_PAREN_ORD) - -/* Differs from ..._POSIX_EXTENDED in that RE_CONTEXT_INDEP_OPS is - removed and RE_NO_BK_REFS is added. */ -#define RE_SYNTAX_POSIX_MINIMAL_EXTENDED \ - (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INVALID_OPS | RE_NO_BK_BRACES \ - | RE_NO_BK_PARENS | RE_NO_BK_REFS \ - | RE_NO_BK_VBAR | RE_UNMATCHED_RIGHT_PAREN_ORD) -/* [[[end syntaxes]]] */ - -/* Maximum number of duplicates an interval can allow. Some systems - (erroneously) define this in other header files, but we want our - value, so remove any previous define. */ -#ifdef RE_DUP_MAX -# undef RE_DUP_MAX -#endif -/* If sizeof(int) == 2, then ((1 << 15) - 1) overflows. */ -#define RE_DUP_MAX (0x7fff) - - -/* POSIX `cflags' bits (i.e., information for `regcomp'). */ - -/* If this bit is set, then use extended regular expression syntax. - If not set, then use basic regular expression syntax. */ -#define REG_EXTENDED 1 - -/* If this bit is set, then ignore case when matching. - If not set, then case is significant. */ -#define REG_ICASE (REG_EXTENDED << 1) - -/* If this bit is set, then anchors do not match at newline - characters in the string. - If not set, then anchors do match at newlines. */ -#define REG_NEWLINE (REG_ICASE << 1) - -/* If this bit is set, then report only success or fail in regexec. - If not set, then returns differ between not matching and errors. */ -#define REG_NOSUB (REG_NEWLINE << 1) - - -/* POSIX `eflags' bits (i.e., information for regexec). */ - -/* If this bit is set, then the beginning-of-line operator doesn't match - the beginning of the string (presumably because it's not the - beginning of a line). - If not set, then the beginning-of-line operator does match the - beginning of the string. */ -#define REG_NOTBOL 1 - -/* Like REG_NOTBOL, except for the end-of-line. */ -#define REG_NOTEOL (1 << 1) - - -/* If any error codes are removed, changed, or added, update the - `re_error_msg' table in regex.c. */ -typedef enum -{ -#ifdef _XOPEN_SOURCE - REG_ENOSYS = -1, /* This will never happen for this implementation. */ -#endif - - REG_NOERROR = 0, /* Success. */ - REG_NOMATCH, /* Didn't find a match (for regexec). */ - - /* POSIX regcomp return error codes. (In the order listed in the - standard.) */ - REG_BADPAT, /* Invalid pattern. */ - REG_ECOLLATE, /* Not implemented. */ - REG_ECTYPE, /* Invalid character class name. */ - REG_EESCAPE, /* Trailing backslash. */ - REG_ESUBREG, /* Invalid back reference. */ - REG_EBRACK, /* Unmatched left bracket. */ - REG_EPAREN, /* Parenthesis imbalance. */ - REG_EBRACE, /* Unmatched \{. */ - REG_BADBR, /* Invalid contents of \{\}. */ - REG_ERANGE, /* Invalid range end. */ - REG_ESPACE, /* Ran out of memory. */ - REG_BADRPT, /* No preceding re for repetition op. */ - - /* Error codes we've added. */ - REG_EEND, /* Premature end. */ - REG_ESIZE, /* Compiled pattern bigger than 2^16 bytes. */ - REG_ERPAREN /* Unmatched ) or \); not returned from regcomp. */ -} reg_errcode_t; - -/* This data structure represents a compiled pattern. Before calling - the pattern compiler, the fields `buffer', `allocated', `fastmap', - `translate', and `no_sub' can be set. After the pattern has been - compiled, the `re_nsub' field is available. All other fields are - private to the regex routines. */ - -#ifndef RE_TRANSLATE_TYPE -# define RE_TRANSLATE_TYPE char * -#endif - -struct re_pattern_buffer -{ -/* [[[begin pattern_buffer]]] */ - /* Space that holds the compiled pattern. It is declared as - `unsigned char *' because its elements are - sometimes used as array indexes. */ - unsigned char *buffer; - - /* Number of bytes to which `buffer' points. */ - unsigned long int allocated; - - /* Number of bytes actually used in `buffer'. */ - unsigned long int used; - - /* Syntax setting with which the pattern was compiled. */ - reg_syntax_t syntax; - - /* Pointer to a fastmap, if any, otherwise zero. re_search uses - the fastmap, if there is one, to skip over impossible - starting points for matches. */ - char *fastmap; - - /* Either a translate table to apply to all characters before - comparing them, or zero for no translation. The translation - is applied to a pattern when it is compiled and to a string - when it is matched. */ - RE_TRANSLATE_TYPE translate; - - /* Number of subexpressions found by the compiler. */ - size_t re_nsub; - - /* Zero if this pattern cannot match the empty string, one else. - Well, in truth it's used only in `re_search_2', to see - whether or not we should use the fastmap, so we don't set - this absolutely perfectly; see `re_compile_fastmap' (the - `duplicate' case). */ - unsigned can_be_null : 1; - - /* If REGS_UNALLOCATED, allocate space in the `regs' structure - for `max (RE_NREGS, re_nsub + 1)' groups. - If REGS_REALLOCATE, reallocate space if necessary. - If REGS_FIXED, use what's there. */ -#define REGS_UNALLOCATED 0 -#define REGS_REALLOCATE 1 -#define REGS_FIXED 2 - unsigned regs_allocated : 2; - - /* Set to zero when `regex_compile' compiles a pattern; set to one - by `re_compile_fastmap' if it updates the fastmap. */ - unsigned fastmap_accurate : 1; - - /* If set, `re_match_2' does not return information about - subexpressions. */ - unsigned no_sub : 1; - - /* If set, a beginning-of-line anchor doesn't match at the - beginning of the string. */ - unsigned not_bol : 1; - - /* Similarly for an end-of-line anchor. */ - unsigned not_eol : 1; - - /* If true, an anchor at a newline matches. */ - unsigned newline_anchor : 1; - -/* [[[end pattern_buffer]]] */ -}; - -typedef struct re_pattern_buffer regex_t; - -/* Type for byte offsets within the string. POSIX mandates this. */ -typedef int regoff_t; - - -/* This is the structure we store register match data in. See - regex.texinfo for a full description of what registers match. */ -struct re_registers -{ - unsigned num_regs; - regoff_t *start; - regoff_t *end; -}; - - -/* If `regs_allocated' is REGS_UNALLOCATED in the pattern buffer, - `re_match_2' returns information about at least this many registers - the first time a `regs' structure is passed. */ -#ifndef RE_NREGS -# define RE_NREGS 30 -#endif - - -/* POSIX specification for registers. Aside from the different names than - `re_registers', POSIX uses an array of structures, instead of a - structure of arrays. */ -typedef struct -{ - regoff_t rm_so; /* Byte offset from string's start to substring's start. */ - regoff_t rm_eo; /* Byte offset from string's start to substring's end. */ -} regmatch_t; - -/* Declarations for routines. */ - -/* Sets the current default syntax to SYNTAX, and return the old syntax. - You can also simply assign to the `re_syntax_options' variable. */ -extern reg_syntax_t re_set_syntax (reg_syntax_t syntax); - -/* Compile the regular expression PATTERN, with length LENGTH - and syntax given by the global `re_syntax_options', into the buffer - BUFFER. Return NULL if successful, and an error string if not. */ -extern const char *re_compile_pattern (const char *pattern, size_t length, - struct re_pattern_buffer *buffer); - - -/* Compile a fastmap for the compiled pattern in BUFFER; used to - accelerate searches. Return 0 if successful and -2 if was an - internal error. */ -extern int re_compile_fastmap (struct re_pattern_buffer *buffer); - - -/* Search in the string STRING (with length LENGTH) for the pattern - compiled into BUFFER. Start searching at position START, for RANGE - characters. Return the starting position of the match, -1 for no - match, or -2 for an internal error. Also return register - information in REGS (if REGS and BUFFER->no_sub are nonzero). */ -extern int re_search (struct re_pattern_buffer *buffer, const char *string, - int length, int start, int range, - struct re_registers *regs); - - -/* Like `re_search', but search in the concatenation of STRING1 and - STRING2. Also, stop searching at index START + STOP. */ -extern int re_search_2 (struct re_pattern_buffer *buffer, const char *string1, - int length1, const char *string2, int length2, - int start, int range, struct re_registers *regs, - int stop); - - -/* Like `re_search', but return how many characters in STRING the regexp - in BUFFER matched, starting at position START. */ -extern int re_match (struct re_pattern_buffer *buffer, const char *string, - int length, int start, struct re_registers *regs); - - -/* Relates to `re_match' as `re_search_2' relates to `re_search'. */ -extern int re_match_2 (struct re_pattern_buffer *buffer, const char *string1, - int length1, const char *string2, int length2, - int start, struct re_registers *regs, int stop); - - -/* Set REGS to hold NUM_REGS registers, storing them in STARTS and - ENDS. Subsequent matches using BUFFER and REGS will use this memory - for recording register information. STARTS and ENDS must be - allocated with malloc, and must each be at least `NUM_REGS * sizeof - (regoff_t)' bytes long. - - If NUM_REGS == 0, then subsequent matches should allocate their own - register data. - - Unless this function is called, the first search or match using - PATTERN_BUFFER will allocate its own register data, without - freeing the old data. */ -extern void re_set_registers (struct re_pattern_buffer *buffer, - struct re_registers *regs, unsigned num_regs, - regoff_t *starts, regoff_t *ends); - -#if defined _REGEX_RE_COMP || defined _LIBC -# ifndef _CRAY -/* 4.2 bsd compatibility. */ -extern char *re_comp (const char *); -extern int re_exec (const char *); -# endif -#endif - -/* GCC 2.95 and later have "__restrict"; C99 compilers have - "restrict", and "configure" may have defined "restrict". */ -#ifndef __restrict -# if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__)) -# if defined restrict || 199901L <= __STDC_VERSION__ -# define __restrict restrict -# else -# define __restrict -# endif -# endif -#endif -/* gcc 3.1 and up support the [restrict] syntax. */ -#ifndef __restrict_arr -# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) -# define __restrict_arr __restrict -# else -# define __restrict_arr -# endif -#endif - -/* POSIX compatibility. */ -extern int regcomp (regex_t *__restrict __preg, - const char *__restrict __pattern, - int __cflags); - -extern int regexec (const regex_t *__restrict __preg, - const char *__restrict __string, size_t __nmatch, - regmatch_t __pmatch[__restrict_arr], - int __eflags); - -extern size_t regerror (int __errcode, const regex_t *__preg, - char *__errbuf, size_t __errbuf_size); - -extern void regfree (regex_t *__preg); - - -#ifdef __cplusplus -} -#endif /* C++ */ - -#endif /* regex.h */ - -/* -Local variables: -make-backup-files: t -version-control: t -trim-versions-without-asking: nil -End: -*/ diff --git a/contrib/diff/lib/setmode.c b/contrib/diff/lib/setmode.c deleted file mode 100644 index b2b93a6..0000000 --- a/contrib/diff/lib/setmode.c +++ /dev/null @@ -1,67 +0,0 @@ -/* Set a file descriptor's mode to binary or to text. - - Copyright (C) 2001, 2004 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. - If not, write to the Free Software Foundation, - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Written by Paul Eggert <eggert@twinsun.com> */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#if HAVE_STDBOOL_H -# include <stdbool.h> -#else -typedef enum {false = 0, true = 1} bool; -#endif - -#if HAVE_SETMODE_DOS -# include <io.h> -# if HAVE_FCNTL_H -# include <fcntl.h> -# endif -# if HAVE_UNISTD_H -# include <unistd.h> -# endif -#endif - -#include "setmode.h" -#undef set_binary_mode - -#ifndef __attribute__ -# if __GNUC__ < 3 || __STRICT_ANSI__ -# define __attribute__(x) -# endif -#endif - -/* Set the binary mode of FD to MODE, returning its previous mode. - MODE is 1 for binary and 0 for text. If setting the mode might - cause problems, ignore the request and return MODE. Always return - 1 on POSIX platforms, which do not distinguish between text and - binary. */ - -#if HAVE_SETMODE_DOS -bool -set_binary_mode (int fd, bool mode) -{ - if (isatty (fd)) - return mode; - return setmode (fd, mode ? O_BINARY : O_TEXT) != O_TEXT; -} -#else -static char dummy; -#endif diff --git a/contrib/diff/lib/stdbool_.h b/contrib/diff/lib/stdbool_.h deleted file mode 100644 index e33715a..0000000 --- a/contrib/diff/lib/stdbool_.h +++ /dev/null @@ -1,93 +0,0 @@ -/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. - Written by Bruno Haible <haible@clisp.cons.org>, 2001. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _STDBOOL_H -#define _STDBOOL_H - -/* ISO C 99 <stdbool.h> for platforms that lack it. */ - -/* Usage suggestions: - - Programs that use <stdbool.h> should be aware of some limitations - and standards compliance issues. - - Standards compliance: - - - <stdbool.h> must be #included before 'bool', 'false', 'true' - can be used. - - - You cannot assume that sizeof (bool) == 1. - - - Programs should not undefine the macros bool, true, and false, - as C99 lists that as an "obsolescent feature". - - Limitations of this substitute, when used in a C89 environment: - - - <stdbool.h> must be #included before the '_Bool' type can be used. - - - You cannot assume that _Bool is a typedef; it might be a macro. - - - In C99, casts and automatic conversions to '_Bool' or 'bool' are - performed in such a way that every nonzero value gets converted - to 'true', and zero gets converted to 'false'. This doesn't work - with this substitute. With this substitute, only the values 0 and 1 - give the expected result when converted to _Bool' or 'bool'. - - Also, it is suggested that programs use 'bool' rather than '_Bool'; - this isn't required, but 'bool' is more common. */ - - -/* 7.16. Boolean type and values */ - -/* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same - definitions below, but temporarily we have to #undef them. */ -#ifdef __BEOS__ -# include <OS.h> /* defines bool but not _Bool */ -# undef false -# undef true -#endif - -/* For the sake of symbolic names in gdb, we define true and false as - enum constants, not only as macros. - It is tempting to write - typedef enum { false = 0, true = 1 } _Bool; - so that gdb prints values of type 'bool' symbolically. But if we do - this, values of type '_Bool' may promote to 'int' or 'unsigned int' - (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int' - (see ISO C 99 6.3.1.1.(2)). So we add a negative value to the - enum; this ensures that '_Bool' promotes to 'int'. */ -#if !(defined __cplusplus || defined __BEOS__) -# if !@HAVE__BOOL@ -# if defined __SUNPRO_C && (__SUNPRO_C < 0x550 || __STDC__ == 1) - /* Avoid stupid "warning: _Bool is a keyword in ISO C99". */ -# define _Bool signed char -enum { false = 0, true = 1 }; -# else -typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool; -# endif -# endif -#else -typedef bool _Bool; -#endif -#define bool _Bool - -/* The other macros must be usable in preprocessor directives. */ -#define false 0 -#define true 1 -#define __bool_true_false_are_defined 1 - -#endif /* _STDBOOL_H */ diff --git a/contrib/diff/lib/strcasecmp.c b/contrib/diff/lib/strcasecmp.c deleted file mode 100644 index cf4ab88..0000000 --- a/contrib/diff/lib/strcasecmp.c +++ /dev/null @@ -1,66 +0,0 @@ -/* strcasecmp.c -- case insensitive string comparator - Copyright (C) 1998, 1999 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#ifdef LENGTH_LIMIT -# define STRXCASECMP_FUNCTION strncasecmp -# define STRXCASECMP_DECLARE_N , size_t n -# define LENGTH_LIMIT_EXPR(Expr) Expr -#else -# define STRXCASECMP_FUNCTION strcasecmp -# define STRXCASECMP_DECLARE_N /* empty */ -# define LENGTH_LIMIT_EXPR(Expr) 0 -#endif - -#include <stddef.h> -#include <ctype.h> - -#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch)) - -/* Compare {{no more than N characters of }}strings S1 and S2, - ignoring case, returning less than, equal to or - greater than zero if S1 is lexicographically less - than, equal to or greater than S2. */ - -int -STRXCASECMP_FUNCTION (const char *s1, const char *s2 STRXCASECMP_DECLARE_N) -{ - register const unsigned char *p1 = (const unsigned char *) s1; - register const unsigned char *p2 = (const unsigned char *) s2; - unsigned char c1, c2; - - if (p1 == p2 || LENGTH_LIMIT_EXPR (n == 0)) - return 0; - - do - { - c1 = TOLOWER (*p1); - c2 = TOLOWER (*p2); - - if (LENGTH_LIMIT_EXPR (--n == 0) || c1 == '\0') - break; - - ++p1; - ++p2; - } - while (c1 == c2); - - return c1 - c2; -} diff --git a/contrib/diff/lib/stripslash.c b/contrib/diff/lib/stripslash.c deleted file mode 100644 index c6b319e..0000000 --- a/contrib/diff/lib/stripslash.c +++ /dev/null @@ -1,39 +0,0 @@ -/* stripslash.c -- remove redundant trailing slashes from a file name - Copyright (C) 1990, 2001, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#include "dirname.h" - -/* Remove trailing slashes from PATH. - Return nonzero if a trailing slash was removed. - This is useful when using filename completion from a shell that - adds a "/" after directory names (such as tcsh and bash), because - the Unix rename and rmdir system calls return an "Invalid argument" error - when given a path that ends in "/" (except for the root directory). */ - -int -strip_trailing_slashes (char *path) -{ - char *base = base_name (path); - char *base_lim = base + base_len (base); - int had_slash = *base_lim; - *base_lim = '\0'; - return had_slash; -} diff --git a/contrib/diff/lib/strncasecmp.c b/contrib/diff/lib/strncasecmp.c deleted file mode 100644 index 68d95aa..0000000 --- a/contrib/diff/lib/strncasecmp.c +++ /dev/null @@ -1,2 +0,0 @@ -#define LENGTH_LIMIT -#include "strcasecmp.c" diff --git a/contrib/diff/lib/strtol.c b/contrib/diff/lib/strtol.c deleted file mode 100644 index e2b1589..0000000 --- a/contrib/diff/lib/strtol.c +++ /dev/null @@ -1,432 +0,0 @@ -/* Convert string representation of a number into an integer value. - - Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2003 - Free Software Foundation, Inc. - - NOTE: The canonical source of this file is maintained with the GNU C - Library. Bugs can be reported to bug-glibc@gnu.org. - - This program is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by the - Free Software Foundation; either version 2, or (at your option) any - later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#ifdef _LIBC -# define USE_NUMBER_GROUPING -#endif - -#include <ctype.h> -#include <errno.h> -#ifndef errno -extern int errno; -#endif -#ifndef __set_errno -# define __set_errno(Val) errno = (Val) -#endif - -#include <limits.h> -#include <stddef.h> -#include <stdlib.h> -#include <string.h> - -#ifdef USE_NUMBER_GROUPING -# include "../locale/localeinfo.h" -#endif - -/* Nonzero if we are defining `strtoul' or `strtoull', operating on - unsigned integers. */ -#ifndef UNSIGNED -# define UNSIGNED 0 -# define INT LONG int -#else -# define INT unsigned LONG int -#endif - -/* Determine the name. */ -#ifdef USE_IN_EXTENDED_LOCALE_MODEL -# if UNSIGNED -# ifdef USE_WIDE_CHAR -# ifdef QUAD -# define strtol __wcstoull_l -# else -# define strtol __wcstoul_l -# endif -# else -# ifdef QUAD -# define strtol __strtoull_l -# else -# define strtol __strtoul_l -# endif -# endif -# else -# ifdef USE_WIDE_CHAR -# ifdef QUAD -# define strtol __wcstoll_l -# else -# define strtol __wcstol_l -# endif -# else -# ifdef QUAD -# define strtol __strtoll_l -# else -# define strtol __strtol_l -# endif -# endif -# endif -#else -# if UNSIGNED -# ifdef USE_WIDE_CHAR -# ifdef QUAD -# define strtol wcstoull -# else -# define strtol wcstoul -# endif -# else -# ifdef QUAD -# define strtol strtoull -# else -# define strtol strtoul -# endif -# endif -# else -# ifdef USE_WIDE_CHAR -# ifdef QUAD -# define strtol wcstoll -# else -# define strtol wcstol -# endif -# else -# ifdef QUAD -# define strtol strtoll -# endif -# endif -# endif -#endif - -/* If QUAD is defined, we are defining `strtoll' or `strtoull', - operating on `long long int's. */ -#ifdef QUAD -# define LONG long long -# define STRTOL_LONG_MIN LONG_LONG_MIN -# define STRTOL_LONG_MAX LONG_LONG_MAX -# define STRTOL_ULONG_MAX ULONG_LONG_MAX - -/* The extra casts work around common compiler bugs, - e.g. Cray C 5.0.3.0 when t == time_t. */ -# ifndef TYPE_SIGNED -# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) -# endif -# ifndef TYPE_MINIMUM -# define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \ - ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \ - : (t) 0)) -# endif -# ifndef TYPE_MAXIMUM -# define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t))) -# endif - -# ifndef ULONG_LONG_MAX -# define ULONG_LONG_MAX TYPE_MAXIMUM (unsigned long long) -# endif -# ifndef LONG_LONG_MAX -# define LONG_LONG_MAX TYPE_MAXIMUM (long long int) -# endif -# ifndef LONG_LONG_MIN -# define LONG_LONG_MIN TYPE_MINIMUM (long long int) -# endif - -# if __GNUC__ == 2 && __GNUC_MINOR__ < 7 - /* Work around gcc bug with using this constant. */ - static const unsigned long long int maxquad = ULONG_LONG_MAX; -# undef STRTOL_ULONG_MAX -# define STRTOL_ULONG_MAX maxquad -# endif -#else -# define LONG long -# define STRTOL_LONG_MIN LONG_MIN -# define STRTOL_LONG_MAX LONG_MAX -# define STRTOL_ULONG_MAX ULONG_MAX -#endif - - -/* We use this code also for the extended locale handling where the - function gets as an additional argument the locale which has to be - used. To access the values we have to redefine the _NL_CURRENT - macro. */ -#ifdef USE_IN_EXTENDED_LOCALE_MODEL -# undef _NL_CURRENT -# define _NL_CURRENT(category, item) \ - (current->values[_NL_ITEM_INDEX (item)].string) -# define LOCALE_PARAM , loc -# define LOCALE_PARAM_PROTO , __locale_t loc -#else -# define LOCALE_PARAM -# define LOCALE_PARAM_PROTO -#endif - -#if defined _LIBC || defined HAVE_WCHAR_H -# include <wchar.h> -#endif - -#ifdef USE_WIDE_CHAR -# include <wctype.h> -# define L_(Ch) L##Ch -# define UCHAR_TYPE wint_t -# define STRING_TYPE wchar_t -# ifdef USE_IN_EXTENDED_LOCALE_MODEL -# define ISSPACE(Ch) __iswspace_l ((Ch), loc) -# define ISALPHA(Ch) __iswalpha_l ((Ch), loc) -# define TOUPPER(Ch) __towupper_l ((Ch), loc) -# else -# define ISSPACE(Ch) iswspace (Ch) -# define ISALPHA(Ch) iswalpha (Ch) -# define TOUPPER(Ch) towupper (Ch) -# endif -#else -# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII) -# define IN_CTYPE_DOMAIN(c) 1 -# else -# define IN_CTYPE_DOMAIN(c) isascii(c) -# endif -# define L_(Ch) Ch -# define UCHAR_TYPE unsigned char -# define STRING_TYPE char -# ifdef USE_IN_EXTENDED_LOCALE_MODEL -# define ISSPACE(Ch) __isspace_l ((Ch), loc) -# define ISALPHA(Ch) __isalpha_l ((Ch), loc) -# define TOUPPER(Ch) __toupper_l ((Ch), loc) -# else -# define ISSPACE(Ch) (IN_CTYPE_DOMAIN (Ch) && isspace (Ch)) -# define ISALPHA(Ch) (IN_CTYPE_DOMAIN (Ch) && isalpha (Ch)) -# define TOUPPER(Ch) (IN_CTYPE_DOMAIN (Ch) ? toupper (Ch) : (Ch)) -# endif -#endif - -#define INTERNAL(X) INTERNAL1(X) -#define INTERNAL1(X) __##X##_internal -#define WEAKNAME(X) WEAKNAME1(X) - -#ifdef USE_NUMBER_GROUPING -/* This file defines a function to check for correct grouping. */ -# include "grouping.h" -#endif - - - -/* Convert NPTR to an `unsigned long int' or `long int' in base BASE. - If BASE is 0 the base is determined by the presence of a leading - zero, indicating octal or a leading "0x" or "0X", indicating hexadecimal. - If BASE is < 2 or > 36, it is reset to 10. - If ENDPTR is not NULL, a pointer to the character after the last - one converted is stored in *ENDPTR. */ - -INT -INTERNAL (strtol) (const STRING_TYPE *nptr, STRING_TYPE **endptr, - int base, int group LOCALE_PARAM_PROTO) -{ - int negative; - register unsigned LONG int cutoff; - register unsigned int cutlim; - register unsigned LONG int i; - register const STRING_TYPE *s; - register UCHAR_TYPE c; - const STRING_TYPE *save, *end; - int overflow; - -#ifdef USE_NUMBER_GROUPING -# ifdef USE_IN_EXTENDED_LOCALE_MODEL - struct locale_data *current = loc->__locales[LC_NUMERIC]; -# endif - /* The thousands character of the current locale. */ - wchar_t thousands = L'\0'; - /* The numeric grouping specification of the current locale, - in the format described in <locale.h>. */ - const char *grouping; - - if (group) - { - grouping = _NL_CURRENT (LC_NUMERIC, GROUPING); - if (*grouping <= 0 || *grouping == CHAR_MAX) - grouping = NULL; - else - { - /* Figure out the thousands separator character. */ -# if defined _LIBC || defined _HAVE_BTOWC - thousands = __btowc (*_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP)); - if (thousands == WEOF) - thousands = L'\0'; -# endif - if (thousands == L'\0') - grouping = NULL; - } - } - else - grouping = NULL; -#endif - - if (base < 0 || base == 1 || base > 36) - { - __set_errno (EINVAL); - return 0; - } - - save = s = nptr; - - /* Skip white space. */ - while (ISSPACE (*s)) - ++s; - if (*s == L_('\0')) - goto noconv; - - /* Check for a sign. */ - if (*s == L_('-')) - { - negative = 1; - ++s; - } - else if (*s == L_('+')) - { - negative = 0; - ++s; - } - else - negative = 0; - - /* Recognize number prefix and if BASE is zero, figure it out ourselves. */ - if (*s == L_('0')) - { - if ((base == 0 || base == 16) && TOUPPER (s[1]) == L_('X')) - { - s += 2; - base = 16; - } - else if (base == 0) - base = 8; - } - else if (base == 0) - base = 10; - - /* Save the pointer so we can check later if anything happened. */ - save = s; - -#ifdef USE_NUMBER_GROUPING - if (group) - { - /* Find the end of the digit string and check its grouping. */ - end = s; - for (c = *end; c != L_('\0'); c = *++end) - if ((wchar_t) c != thousands - && ((wchar_t) c < L_('0') || (wchar_t) c > L_('9')) - && (!ISALPHA (c) || (int) (TOUPPER (c) - L_('A') + 10) >= base)) - break; - if (*s == thousands) - end = s; - else - end = correctly_grouped_prefix (s, end, thousands, grouping); - } - else -#endif - end = NULL; - - cutoff = STRTOL_ULONG_MAX / (unsigned LONG int) base; - cutlim = STRTOL_ULONG_MAX % (unsigned LONG int) base; - - overflow = 0; - i = 0; - for (c = *s; c != L_('\0'); c = *++s) - { - if (s == end) - break; - if (c >= L_('0') && c <= L_('9')) - c -= L_('0'); - else if (ISALPHA (c)) - c = TOUPPER (c) - L_('A') + 10; - else - break; - if ((int) c >= base) - break; - /* Check for overflow. */ - if (i > cutoff || (i == cutoff && c > cutlim)) - overflow = 1; - else - { - i *= (unsigned LONG int) base; - i += c; - } - } - - /* Check if anything actually happened. */ - if (s == save) - goto noconv; - - /* Store in ENDPTR the address of one character - past the last character we converted. */ - if (endptr != NULL) - *endptr = (STRING_TYPE *) s; - -#if !UNSIGNED - /* Check for a value that is within the range of - `unsigned LONG int', but outside the range of `LONG int'. */ - if (overflow == 0 - && i > (negative - ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1 - : (unsigned LONG int) STRTOL_LONG_MAX)) - overflow = 1; -#endif - - if (overflow) - { - __set_errno (ERANGE); -#if UNSIGNED - return STRTOL_ULONG_MAX; -#else - return negative ? STRTOL_LONG_MIN : STRTOL_LONG_MAX; -#endif - } - - /* Return the result of the appropriate sign. */ - return negative ? -i : i; - -noconv: - /* We must handle a special case here: the base is 0 or 16 and the - first two characters are '0' and 'x', but the rest are no - hexadecimal digits. This is no error case. We return 0 and - ENDPTR points to the `x`. */ - if (endptr != NULL) - { - if (save - nptr >= 2 && TOUPPER (save[-1]) == L_('X') - && save[-2] == L_('0')) - *endptr = (STRING_TYPE *) &save[-1]; - else - /* There was no number to convert. */ - *endptr = (STRING_TYPE *) nptr; - } - - return 0L; -} - -/* External user entry point. */ - - -INT -#ifdef weak_function -weak_function -#endif -strtol (const STRING_TYPE *nptr, STRING_TYPE **endptr, - int base LOCALE_PARAM_PROTO) -{ - return INTERNAL (strtol) (nptr, endptr, base, 0 LOCALE_PARAM); -} diff --git a/contrib/diff/lib/strtoll.c b/contrib/diff/lib/strtoll.c deleted file mode 100644 index 8e9b261..0000000 --- a/contrib/diff/lib/strtoll.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Function to parse a `long long int' from text. - Copyright (C) 1995, 1996, 1997, 1999, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define QUAD 1 - -#include <strtol.c> - -#ifdef _LIBC -# ifdef SHARED -# include <shlib-compat.h> - -# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) -compat_symbol (libc, __strtoll_internal, __strtoq_internal, GLIBC_2_0); -# endif - -# endif -weak_alias (strtoll, strtoq) -#endif diff --git a/contrib/diff/lib/strtoul.c b/contrib/diff/lib/strtoul.c deleted file mode 100644 index bb62f9b..0000000 --- a/contrib/diff/lib/strtoul.c +++ /dev/null @@ -1,20 +0,0 @@ -/* Copyright (C) 1991, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define UNSIGNED 1 - -#include "strtol.c" diff --git a/contrib/diff/lib/strtoull.c b/contrib/diff/lib/strtoull.c deleted file mode 100644 index d6aa1f8..0000000 --- a/contrib/diff/lib/strtoull.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Function to parse an `unsigned long long int' from text. - Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc. - NOTE: The canonical source of this file is maintained with the GNU C - Library. Bugs can be reported to bug-glibc@gnu.org. - - This program is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by the - Free Software Foundation; either version 2, or (at your option) any - later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define QUAD 1 - -#include "strtoul.c" - -#ifdef _LIBC -strong_alias (__strtoull_internal, __strtouq_internal) -weak_alias (strtoull, strtouq) -#endif diff --git a/contrib/diff/lib/tempname.c b/contrib/diff/lib/tempname.c deleted file mode 100644 index b3d0874..0000000 --- a/contrib/diff/lib/tempname.c +++ /dev/null @@ -1,344 +0,0 @@ -/* tempname.c - generate the name of a temporary file. - - Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#include <sys/types.h> -#include <assert.h> - -#include <errno.h> -#ifndef __set_errno -# define __set_errno(Val) errno = (Val) -#endif - -#include <stdio.h> -#ifndef P_tmpdir -# define P_tmpdir "/tmp" -#endif -#ifndef TMP_MAX -# define TMP_MAX 238328 -#endif -#ifndef __GT_FILE -# define __GT_FILE 0 -# define __GT_BIGFILE 1 -# define __GT_DIR 2 -# define __GT_NOCREATE 3 -#endif - -#include <stddef.h> -#include <stdlib.h> -#include <string.h> - -#if HAVE_FCNTL_H || _LIBC -# include <fcntl.h> -#endif - -#if HAVE_SYS_TIME_H || _LIBC -# include <sys/time.h> -#endif - -#if HAVE_STDINT_H || _LIBC -# include <stdint.h> -#endif -#if HAVE_INTTYPES_H -# include <inttypes.h> -#endif - -#if HAVE_UNISTD_H || _LIBC -# include <unistd.h> -#endif - -#include <sys/stat.h> -#if STAT_MACROS_BROKEN -# undef S_ISDIR -#endif -#if !defined S_ISDIR && defined S_IFDIR -# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) -#endif -#if !S_IRUSR && S_IREAD -# define S_IRUSR S_IREAD -#endif -#if !S_IRUSR -# define S_IRUSR 00400 -#endif -#if !S_IWUSR && S_IWRITE -# define S_IWUSR S_IWRITE -#endif -#if !S_IWUSR -# define S_IWUSR 00200 -#endif -#if !S_IXUSR && S_IEXEC -# define S_IXUSR S_IEXEC -#endif -#if !S_IXUSR -# define S_IXUSR 00100 -#endif - -#if _LIBC -# define struct_stat64 struct stat64 -#else -# define struct_stat64 struct stat -# define __getpid getpid -# define __gettimeofday gettimeofday -# define __mkdir mkdir -# define __open open -# define __open64 open -# define __lxstat64(version, path, buf) lstat (path, buf) -# define __xstat64(version, path, buf) stat (path, buf) -#endif - -#if ! (HAVE___SECURE_GETENV || _LIBC) -# define __secure_getenv getenv -#endif - -#ifdef _LIBC -# include <hp-timing.h> -# if HP_TIMING_AVAIL -# define RANDOM_BITS(Var) \ - if (__builtin_expect (value == UINT64_C (0), 0)) \ - { \ - /* If this is the first time this function is used initialize \ - the variable we accumulate the value in to some somewhat \ - random value. If we'd not do this programs at startup time \ - might have a reduced set of possible names, at least on slow \ - machines. */ \ - struct timeval tv; \ - __gettimeofday (&tv, NULL); \ - value = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec; \ - } \ - HP_TIMING_NOW (Var) -# endif -#endif - -/* Use the widest available unsigned type if uint64_t is not - available. The algorithm below extracts a number less than 62**6 - (approximately 2**35.725) from uint64_t, so ancient hosts where - uintmax_t is only 32 bits lose about 3.725 bits of randomness, - which is better than not having mkstemp at all. */ -#if !defined UINT64_MAX && !defined uint64_t -# define uint64_t uintmax_t -#endif - -/* Return nonzero if DIR is an existent directory. */ -static int -direxists (const char *dir) -{ - struct_stat64 buf; - return __xstat64 (_STAT_VER, dir, &buf) == 0 && S_ISDIR (buf.st_mode); -} - -/* Path search algorithm, for tmpnam, tmpfile, etc. If DIR is - non-null and exists, uses it; otherwise uses the first of $TMPDIR, - P_tmpdir, /tmp that exists. Copies into TMPL a template suitable - for use with mk[s]temp. Will fail (-1) if DIR is non-null and - doesn't exist, none of the searched dirs exists, or there's not - enough space in TMPL. */ -int -__path_search (char *tmpl, size_t tmpl_len, const char *dir, const char *pfx, - int try_tmpdir) -{ - const char *d; - size_t dlen, plen; - - if (!pfx || !pfx[0]) - { - pfx = "file"; - plen = 4; - } - else - { - plen = strlen (pfx); - if (plen > 5) - plen = 5; - } - - if (try_tmpdir) - { - d = __secure_getenv ("TMPDIR"); - if (d != NULL && direxists (d)) - dir = d; - else if (dir != NULL && direxists (dir)) - /* nothing */ ; - else - dir = NULL; - } - if (dir == NULL) - { - if (direxists (P_tmpdir)) - dir = P_tmpdir; - else if (strcmp (P_tmpdir, "/tmp") != 0 && direxists ("/tmp")) - dir = "/tmp"; - else - { - __set_errno (ENOENT); - return -1; - } - } - - dlen = strlen (dir); - while (dlen > 1 && dir[dlen - 1] == '/') - dlen--; /* remove trailing slashes */ - - /* check we have room for "${dir}/${pfx}XXXXXX\0" */ - if (tmpl_len < dlen + 1 + plen + 6 + 1) - { - __set_errno (EINVAL); - return -1; - } - - sprintf (tmpl, "%.*s/%.*sXXXXXX", (int) dlen, dir, (int) plen, pfx); - return 0; -} - -/* These are the characters used in temporary filenames. */ -static const char letters[] = -"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; - -/* Generate a temporary file name based on TMPL. TMPL must match the - rules for mk[s]temp (i.e. end in "XXXXXX"). The name constructed - does not exist at the time of the call to __gen_tempname. TMPL is - overwritten with the result. - - KIND may be one of: - __GT_NOCREATE: simply verify that the name does not exist - at the time of the call. - __GT_FILE: create the file using open(O_CREAT|O_EXCL) - and return a read-write fd. The file is mode 0600. - __GT_BIGFILE: same as __GT_FILE but use open64(). - __GT_DIR: create a directory, which will be mode 0700. - - We use a clever algorithm to get hard-to-predict names. */ -int -__gen_tempname (char *tmpl, int kind) -{ - int len; - char *XXXXXX; - static uint64_t value; - uint64_t random_time_bits; - unsigned int count; - int fd = -1; - int save_errno = errno; - struct_stat64 st; - - /* A lower bound on the number of temporary files to attempt to - generate. The maximum total number of temporary file names that - can exist for a given template is 62**6. It should never be - necessary to try all these combinations. Instead if a reasonable - number of names is tried (we define reasonable as 62**3) fail to - give the system administrator the chance to remove the problems. */ - unsigned int attempts_min = 62 * 62 * 62; - - /* The number of times to attempt to generate a temporary file. To - conform to POSIX, this must be no smaller than TMP_MAX. */ - unsigned int attempts = attempts_min < TMP_MAX ? TMP_MAX : attempts_min; - - len = strlen (tmpl); - if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX")) - { - __set_errno (EINVAL); - return -1; - } - - /* This is where the Xs start. */ - XXXXXX = &tmpl[len - 6]; - - /* Get some more or less random data. */ -#ifdef RANDOM_BITS - RANDOM_BITS (random_time_bits); -#else -# if HAVE_GETTIMEOFDAY || _LIBC - { - struct timeval tv; - __gettimeofday (&tv, NULL); - random_time_bits = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec; - } -# else - random_time_bits = time (NULL); -# endif -#endif - value += random_time_bits ^ __getpid (); - - for (count = 0; count < attempts; value += 7777, ++count) - { - uint64_t v = value; - - /* Fill in the random bits. */ - XXXXXX[0] = letters[v % 62]; - v /= 62; - XXXXXX[1] = letters[v % 62]; - v /= 62; - XXXXXX[2] = letters[v % 62]; - v /= 62; - XXXXXX[3] = letters[v % 62]; - v /= 62; - XXXXXX[4] = letters[v % 62]; - v /= 62; - XXXXXX[5] = letters[v % 62]; - - switch (kind) - { - case __GT_FILE: - fd = __open (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR); - break; - - case __GT_BIGFILE: - fd = __open64 (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR); - break; - - case __GT_DIR: - fd = __mkdir (tmpl, S_IRUSR | S_IWUSR | S_IXUSR); - break; - - case __GT_NOCREATE: - /* This case is backward from the other three. __gen_tempname - succeeds if __xstat fails because the name does not exist. - Note the continue to bypass the common logic at the bottom - of the loop. */ - if (__lxstat64 (_STAT_VER, tmpl, &st) < 0) - { - if (errno == ENOENT) - { - __set_errno (save_errno); - return 0; - } - else - /* Give up now. */ - return -1; - } - continue; - - default: - assert (! "invalid KIND in __gen_tempname"); - } - - if (fd >= 0) - { - __set_errno (save_errno); - return fd; - } - else if (errno != EEXIST) - return -1; - } - - /* We got out of the loop because we ran out of combinations to try. */ - __set_errno (EEXIST); - return -1; -} diff --git a/contrib/diff/lib/time_r.c b/contrib/diff/lib/time_r.c deleted file mode 100644 index 6c42504..0000000 --- a/contrib/diff/lib/time_r.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Reentrant time functions like localtime_r. - - Copyright (C) 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Written by Paul Eggert. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#include "time_r.h" - -#include <string.h> - -static char * -copy_string_result (char *dest, char const *src) -{ - if (! src) - return 0; - return strcpy (dest, src); -} - -static struct tm * -copy_tm_result (struct tm *dest, struct tm const *src) -{ - if (! src) - return 0; - *dest = *src; - return dest; -} - - -char * -asctime_r (struct tm const * restrict tm, char * restrict buf) -{ - return copy_string_result (buf, asctime (tm)); -} - -char * -ctime_r (time_t const *t, char *buf) -{ - return copy_string_result (buf, ctime (t)); -} - -struct tm * -gmtime_r (time_t const * restrict t, struct tm * restrict tp) -{ - return copy_tm_result (tp, gmtime (t)); -} - -struct tm * -localtime_r (time_t const * restrict t, struct tm * restrict tp) -{ - return copy_tm_result (tp, localtime (t)); -} diff --git a/contrib/diff/lib/time_r.h b/contrib/diff/lib/time_r.h deleted file mode 100644 index fbd3375..0000000 --- a/contrib/diff/lib/time_r.h +++ /dev/null @@ -1,46 +0,0 @@ -/* Reentrant time functions like localtime_r. - - Copyright (C) 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Written by Paul Eggert. */ - -#ifndef _TIME_R_H -#define _TIME_R_H - -/* Include <time.h> first, since it may declare these functions with - signatures that disagree with POSIX, and we don't want to rename - those declarations. */ -#include <time.h> - -#if !HAVE_TIME_R_POSIX -# undef asctime_r -# undef ctime_r -# undef gmtime_r -# undef localtime_r - -# define asctime_r rpl_asctime_r -# define ctime_r rpl_ctime_r -# define gmtime_r rpl_gmtime_r -# define localtime_r rpl_localtime_r - -char *asctime_r (struct tm const * restrict, char * restrict); -char *ctime_r (time_t const *, char *); -struct tm *gmtime_r (time_t const * restrict, struct tm * restrict); -struct tm *localtime_r (time_t const * restrict, struct tm * restrict); -#endif - -#endif diff --git a/contrib/diff/lib/umaxtostr.c b/contrib/diff/lib/umaxtostr.c deleted file mode 100644 index 4f49a7f..0000000 --- a/contrib/diff/lib/umaxtostr.c +++ /dev/null @@ -1,3 +0,0 @@ -#define inttostr umaxtostr -#define inttype uintmax_t -#include "inttostr.c" diff --git a/contrib/diff/lib/waitpid.c b/contrib/diff/lib/waitpid.c deleted file mode 100644 index bc07898..0000000 --- a/contrib/diff/lib/waitpid.c +++ /dev/null @@ -1,72 +0,0 @@ -/* Emulate waitpid on systems that just have wait. - Copyright (C) 1994, 1995, 1998, 1999 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. - If not, write to the Free Software Foundation, - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#include <errno.h> -#ifndef errno -extern int errno; -#endif - -#define WAITPID_CHILDREN 8 -static pid_t waited_pid[WAITPID_CHILDREN]; -static int waited_status[WAITPID_CHILDREN]; - -pid_t -waitpid (pid_t pid, int *stat_loc, int options) -{ - int i; - pid_t p; - - if (!options && (pid == -1 || 0 < pid)) - { - /* If we have already waited for this child, return it immediately. */ - for (i = 0; i < WAITPID_CHILDREN; i++) - { - p = waited_pid[i]; - if (p && (p == pid || pid == -1)) - { - waited_pid[i] = 0; - goto success; - } - } - - /* The child has not returned yet; wait for it, accumulating status. */ - for (i = 0; i < WAITPID_CHILDREN; i++) - if (! waited_pid[i]) - { - p = wait (&waited_status[i]); - if (p < 0) - return p; - if (p == pid || pid == -1) - goto success; - waited_pid[i] = p; - } - } - - /* We cannot emulate this wait call, e.g. because of too many children. */ - errno = EINVAL; - return -1; - -success: - if (stat_loc) - *stat_loc = waited_status[i]; - return p; -} diff --git a/contrib/diff/lib/xstrdup.c b/contrib/diff/lib/xstrdup.c deleted file mode 100644 index 58f18be..0000000 --- a/contrib/diff/lib/xstrdup.c +++ /dev/null @@ -1,33 +0,0 @@ -/* xstrdup.c -- copy a string with out of memory checking - Copyright (C) 1990, 1996, 1998, 2001, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -/* Specification. */ -#include "xalloc.h" - -#include <string.h> - -/* Return a newly allocated copy of STRING. */ - -char * -xstrdup (const char *string) -{ - return xclone (string, strlen (string) + 1); -} diff --git a/contrib/diff/lib/xstrtol.c b/contrib/diff/lib/xstrtol.c deleted file mode 100644 index d0aa0a9..0000000 --- a/contrib/diff/lib/xstrtol.c +++ /dev/null @@ -1,295 +0,0 @@ -/* A more useful interface to strtol. - - Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2003 Free - Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Written by Jim Meyering. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#ifndef __strtol -# define __strtol strtol -# define __strtol_t long int -# define __xstrtol xstrtol -# define STRTOL_T_MINIMUM LONG_MIN -# define STRTOL_T_MAXIMUM LONG_MAX -#endif - -/* Some pre-ANSI implementations (e.g. SunOS 4) - need stderr defined if assertion checking is enabled. */ -#include <stdio.h> - -#include <assert.h> -#include <ctype.h> -#include <stdlib.h> -#include <string.h> - -#include <errno.h> -#ifndef errno -extern int errno; -#endif - -#include <limits.h> - -/* The extra casts work around common compiler bugs. */ -#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) -#define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \ - ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \ - : (t) 0)) -#define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t))) - -#ifndef STRTOL_T_MINIMUM -# define STRTOL_T_MINIMUM TYPE_MINIMUM (__strtol_t) -# define STRTOL_T_MAXIMUM TYPE_MAXIMUM (__strtol_t) -#endif - -#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII)) -# define IN_CTYPE_DOMAIN(c) 1 -#else -# define IN_CTYPE_DOMAIN(c) isascii(c) -#endif - -#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c)) - -#include "xstrtol.h" - -#if !HAVE_DECL_STRTOIMAX && !defined strtoimax -intmax_t strtoimax (); -#endif - -#if !HAVE_DECL_STRTOUMAX && !defined strtoumax -uintmax_t strtoumax (); -#endif - -static strtol_error -bkm_scale (__strtol_t *x, int scale_factor) -{ - if (TYPE_SIGNED (__strtol_t) && *x < STRTOL_T_MINIMUM / scale_factor) - { - *x = STRTOL_T_MINIMUM; - return LONGINT_OVERFLOW; - } - if (STRTOL_T_MAXIMUM / scale_factor < *x) - { - *x = STRTOL_T_MAXIMUM; - return LONGINT_OVERFLOW; - } - *x *= scale_factor; - return LONGINT_OK; -} - -static strtol_error -bkm_scale_by_power (__strtol_t *x, int base, int power) -{ - strtol_error err = LONGINT_OK; - while (power--) - err |= bkm_scale (x, base); - return err; -} - -/* FIXME: comment. */ - -strtol_error -__xstrtol (const char *s, char **ptr, int strtol_base, - __strtol_t *val, const char *valid_suffixes) -{ - char *t_ptr; - char **p; - __strtol_t tmp; - strtol_error err = LONGINT_OK; - - assert (0 <= strtol_base && strtol_base <= 36); - - p = (ptr ? ptr : &t_ptr); - - if (! TYPE_SIGNED (__strtol_t)) - { - const char *q = s; - while (ISSPACE ((unsigned char) *q)) - ++q; - if (*q == '-') - return LONGINT_INVALID; - } - - errno = 0; - tmp = __strtol (s, p, strtol_base); - - if (*p == s) - { - /* If there is no number but there is a valid suffix, assume the - number is 1. The string is invalid otherwise. */ - if (valid_suffixes && **p && strchr (valid_suffixes, **p)) - tmp = 1; - else - return LONGINT_INVALID; - } - else if (errno != 0) - { - if (errno != ERANGE) - return LONGINT_INVALID; - err = LONGINT_OVERFLOW; - } - - /* Let valid_suffixes == NULL mean `allow any suffix'. */ - /* FIXME: update all callers except the ones that allow suffixes - after the number, changing last parameter NULL to `""'. */ - if (!valid_suffixes) - { - *val = tmp; - return err; - } - - if (**p != '\0') - { - int base = 1024; - int suffixes = 1; - strtol_error overflow; - - if (!strchr (valid_suffixes, **p)) - { - *val = tmp; - return err | LONGINT_INVALID_SUFFIX_CHAR; - } - - if (strchr (valid_suffixes, '0')) - { - /* The ``valid suffix'' '0' is a special flag meaning that - an optional second suffix is allowed, which can change - the base. A suffix "B" (e.g. "100MB") stands for a power - of 1000, whereas a suffix "iB" (e.g. "100MiB") stands for - a power of 1024. If no suffix (e.g. "100M"), assume - power-of-1024. */ - - switch (p[0][1]) - { - case 'i': - if (p[0][2] == 'B') - suffixes += 2; - break; - - case 'B': - case 'D': /* 'D' is obsolescent */ - base = 1000; - suffixes++; - break; - } - } - - switch (**p) - { - case 'b': - overflow = bkm_scale (&tmp, 512); - break; - - case 'B': - overflow = bkm_scale (&tmp, 1024); - break; - - case 'c': - overflow = 0; - break; - - case 'E': /* exa or exbi */ - overflow = bkm_scale_by_power (&tmp, base, 6); - break; - - case 'G': /* giga or gibi */ - case 'g': /* 'g' is undocumented; for compatibility only */ - overflow = bkm_scale_by_power (&tmp, base, 3); - break; - - case 'k': /* kilo */ - case 'K': /* kibi */ - overflow = bkm_scale_by_power (&tmp, base, 1); - break; - - case 'M': /* mega or mebi */ - case 'm': /* 'm' is undocumented; for compatibility only */ - overflow = bkm_scale_by_power (&tmp, base, 2); - break; - - case 'P': /* peta or pebi */ - overflow = bkm_scale_by_power (&tmp, base, 5); - break; - - case 'T': /* tera or tebi */ - case 't': /* 't' is undocumented; for compatibility only */ - overflow = bkm_scale_by_power (&tmp, base, 4); - break; - - case 'w': - overflow = bkm_scale (&tmp, 2); - break; - - case 'Y': /* yotta or 2**80 */ - overflow = bkm_scale_by_power (&tmp, base, 8); - break; - - case 'Z': /* zetta or 2**70 */ - overflow = bkm_scale_by_power (&tmp, base, 7); - break; - - default: - *val = tmp; - return err | LONGINT_INVALID_SUFFIX_CHAR; - } - - err |= overflow; - *p += suffixes; - if (**p) - err |= LONGINT_INVALID_SUFFIX_CHAR; - } - - *val = tmp; - return err; -} - -#ifdef TESTING_XSTRTO - -# include <stdio.h> -# include "error.h" - -char *program_name; - -int -main (int argc, char **argv) -{ - strtol_error s_err; - int i; - - program_name = argv[0]; - for (i=1; i<argc; i++) - { - char *p; - __strtol_t val; - - s_err = __xstrtol (argv[i], &p, 0, &val, "bckmw"); - if (s_err == LONGINT_OK) - { - printf ("%s->%lu (%s)\n", argv[i], val, p); - } - else - { - STRTOL_FATAL_ERROR (argv[i], "arg", s_err); - } - } - exit (0); -} - -#endif /* TESTING_XSTRTO */ diff --git a/contrib/diff/lib/xstrtoul.c b/contrib/diff/lib/xstrtoul.c deleted file mode 100644 index 285f7b9..0000000 --- a/contrib/diff/lib/xstrtoul.c +++ /dev/null @@ -1,6 +0,0 @@ -#define __strtol strtoul -#define __strtol_t unsigned long int -#define __xstrtol xstrtoul -#define STRTOL_T_MINIMUM 0 -#define STRTOL_T_MAXIMUM ULONG_MAX -#include "xstrtol.c" diff --git a/contrib/diff/lib/xstrtoumax.c b/contrib/diff/lib/xstrtoumax.c deleted file mode 100644 index a8858bf..0000000 --- a/contrib/diff/lib/xstrtoumax.c +++ /dev/null @@ -1,37 +0,0 @@ -/* xstrtoumax.c -- A more useful interface to strtoumax. - Copyright (C) 1999, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Written by Paul Eggert. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -#if HAVE_INTTYPES_H -# include <inttypes.h> -#elif HAVE_STDINT_H -# include <stdint.h> -#endif - -#define __strtol strtoumax -#define __strtol_t uintmax_t -#define __xstrtol xstrtoumax -#ifdef UINTMAX_MAX -# define STRTOL_T_MINIMUM 0 -# define STRTOL_T_MAXIMUM UINTMAX_MAX -#endif -#include "xstrtol.c" diff --git a/contrib/diff/man/Makefile.am b/contrib/diff/man/Makefile.am deleted file mode 100644 index d3a1ee2..0000000 --- a/contrib/diff/man/Makefile.am +++ /dev/null @@ -1,34 +0,0 @@ -# Automakefile for GNU diffutils man pages - -# Copyright (C) 2002 Free Software Foundation, Inc. - -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2, or (at your option) -## any later version. - -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. - -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -## 02111-1307, USA. - -dist_man_MANS = cmp.1 diff.1 diff3.1 sdiff.1 -MAINTAINERCLEANFILES = $(dist_man_MANS) - -S = $(top_srcdir)/src -cmp.1: $S/cmp.c -diff.1: $S/diff.c -diff3.1: $S/diff3.c -sdiff.1: $S/sdiff.c - -# Depend on configure.ac to get version number changes. -$(dist_man_MANS): $(top_srcdir)/configure.ac - base=`expr $@ : '\(.*\).1'` && \ - (echo '[NAME]' && sed 's@/\* *@@; s/-/\\-/; q' $S/$$base.c) | \ - $(HELP2MAN) -i - -S '$(PACKAGE) $(VERSION)' ../src/$$base | \ - sed 's/^\.B info .*/.B info diff/' >$@ diff --git a/contrib/diff/src/Makefile.am b/contrib/diff/src/Makefile.am deleted file mode 100644 index 14ff6ec..0000000 --- a/contrib/diff/src/Makefile.am +++ /dev/null @@ -1,44 +0,0 @@ -# Automakefile for GNU diffutils programs. - -# Copyright (C) 2001, 2002 Free Software Foundation, Inc. - -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2, or (at your option) -## any later version. - -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. - -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -## 02111-1307, USA. - -bin_PROGRAMS = cmp diff diff3 sdiff - -noinst_HEADERS = system.h - -localedir = $(datadir)/locale - -AM_CPPFLAGS = -I../lib -I$(top_srcdir)/lib - -LDADD = ../lib/libdiffutils.a @LIBINTL@ -diff_LDADD = $(LDADD) @LIB_CLOCK_GETTIME@ - -cmp_SOURCES = cmp.c -diff3_SOURCES = diff3.c -sdiff_SOURCES = sdiff.c -diff_SOURCES = \ - analyze.c context.c diff.c diff.h dir.c ed.c ifdef.c io.c \ - normal.c side.c util.c - -MOSTLYCLEANFILES = paths.h paths.ht - -cmp.$(OBJEXT) diff3.$(OBJEXT) diff.$(OBJEXT) sdiff.$(OBJEXT): paths.h -paths.h: - (echo '#define DEFAULT_DIFF_PROGRAM "$(bindir)/'`echo diff|sed '$(transform)'`'"' && \ - echo '#define LOCALEDIR "$(localedir)"') >$@t - mv $@t $@ |