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authorrgrimes <rgrimes@FreeBSD.org>1994-05-27 12:33:43 +0000
committerrgrimes <rgrimes@FreeBSD.org>1994-05-27 12:33:43 +0000
commitf9ab90d9d6d02989a075d0f0074496d5b1045e4b (patch)
treeadd7e996bac5289cdc55e6935750c352505560a9 /usr.bin/indent
parentbe22b15ae2ff8d7fe06b6e14fddf0c5b444a95da (diff)
downloadFreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.zip
FreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.tar.gz
BSD 4.4 Lite Usr.bin Sources
Diffstat (limited to 'usr.bin/indent')
-rw-r--r--usr.bin/indent/Makefile6
-rw-r--r--usr.bin/indent/README97
-rw-r--r--usr.bin/indent/args.c300
-rw-r--r--usr.bin/indent/indent.1452
-rw-r--r--usr.bin/indent/indent.c1181
-rw-r--r--usr.bin/indent/indent_codes.h69
-rw-r--r--usr.bin/indent/indent_globs.h310
-rw-r--r--usr.bin/indent/io.c625
-rw-r--r--usr.bin/indent/lexi.c559
-rw-r--r--usr.bin/indent/parse.c324
-rw-r--r--usr.bin/indent/pr_comment.c418
11 files changed, 4341 insertions, 0 deletions
diff --git a/usr.bin/indent/Makefile b/usr.bin/indent/Makefile
new file mode 100644
index 0000000..8d9ff94
--- /dev/null
+++ b/usr.bin/indent/Makefile
@@ -0,0 +1,6 @@
+# @(#)Makefile 8.1 (Berkeley) 6/6/93
+
+PROG= indent
+SRCS= indent.c io.c lexi.c parse.c pr_comment.c args.c
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/indent/README b/usr.bin/indent/README
new file mode 100644
index 0000000..618f1de
--- /dev/null
+++ b/usr.bin/indent/README
@@ -0,0 +1,97 @@
+This is the C indenter, it originally came from the University of Illinois
+via some distribution tape for PDP-11 Unix. It has subsequently been
+hacked upon by James Gosling @ CMU. It isn't very pretty, and really needs
+to be completely redone, but it is probably the nicest C pretty printer
+around.
+
+Further additions to provide "Kernel Normal Form" were contributed
+by the folks at Sun Microsystems.
+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+> From mnetor!yunexus!oz@uunet.UU.NET Wed Mar 9 15:30:55 1988
+> Date: Tue, 8 Mar 88 18:36:25 EST
+> From: yunexus!oz@uunet.UU.NET (Ozan Yigit)
+> To: bostic@okeeffe.berkeley.edu
+> Cc: ccvaxa!willcox@uunet.UU.NET, jag@sun.com, rsalz@uunet.UU.NET
+> In-Reply-To: Keith Bostic's message of Tue, 16 Feb 88 16:09:06 PST
+> Subject: Re: Indent...
+
+Thank you for your response about indent. I was wrong in my original
+observation (or mis-observation :-). UCB did keep the Illinois
+copyright intact.
+
+The issue still is whether we can distribute indent, and if we can, which
+version. David Willcox (the author) states that:
+
+| Several people have asked me on what basis I claim that indent is in
+| the public domain. I knew I would be sorry I made that posting.
+|
+| Some history. Way back in 1976, the project I worked on at the
+| University of Illinois Center for Advanced Computation had a huge
+| battle about how to format C code. After about a week of fighting, I
+| got disgusted and wrote a program, which I called indent, to reformat C
+| code. It had a bunch of different options that would let you format
+| the output the way you liked. In particular, all of the different
+| formats being championed were supported.
+|
+| It was my first big C program. It was ugly. It wasn't designed, it
+| just sort of grew. But it pretty much worked, and it stopped most of
+| the fighting.
+|
+| As a matter of form, I included a University of Illinois Copyright
+| notice. However, my understanding was that, since the work was done
+| on an ARPA contract, it was in the public domain.
+|
+| Time passed. Some years later, indent showed up on one of the early
+| emacs distributions.
+|
+| Later still, someone from UC Berlekey called the UofI and asked if
+| indent was in the public domain. They wanted to include it in their
+| UNIX distributions, along with the emacs stuff. I was no longer at the
+| UofI, but Rob Kolstad, who was, asked me about it. I told him I didn't
+| care if they used it, and since then it has been on the BSD distributions.
+|
+| Somewhere along the way, several other unnamed people have had their
+| hands in it. It was converted to understand version 7 C. (The
+| original was version 6.) It was converted from its original filter
+| interface to its current "blow away the user's file" interface.
+| The $HOME/.indent.pro file parsing was added. Some more formatting
+| options were added.
+|
+| The source I have right now has two copyright notices. One is the
+| original from the UofI. One is from Berkeley.
+|
+| I am not a lawyer, and I certainly do not understand copyright law. As
+| far as I am concerned, the bulk of this program, everything covered by
+| the UofI copyright, is in the public domain, and worth every penny.
+| Berkeley's copyright probably should only cover their changes, and I
+| don't know their feelings about sending it out.
+
+In any case, there appears to be noone at UofI to clarify/and change
+that copyright, but I am confident (based on the statements of its
+author) that the code, as it stands with its copyright, is
+distributable, and will not cause any legal problems.
+
+Hence, the issue reduces to *which* one to distribute through
+comp.sources.unix. I would suggest that with the permission of you
+folks (given that you have parts copyrighted), we distribute the 4.3
+version of indent, which appears to be the most up-to-date version. I
+happen to have just about every known version of indent, including the
+very original submission from the author to a unix tape, later the
+G-Emacs version, any 4.n version, sun version and the Unipress
+version. I still think we should not have to "go-back-in-time" and
+re-do all the work you people have done.
+
+I hope to hear from you as to what you think about this. You may of
+course send 4.3 version to the moderator directly, or you can let me
+know of your permission, and I will send the sources, or you can let
+me know that 4.3 version is off-limits, in which case we would probably
+have to revert to an older version. One way or another, I hope to get
+a version of indent to comp.sources.unix.
+
+regards.. oz
+
+cc: ccvaxa!willcox
+ sun.com!jar
+ uunet!rsalz
+
diff --git a/usr.bin/indent/args.c b/usr.bin/indent/args.c
new file mode 100644
index 0000000..e62f038
--- /dev/null
+++ b/usr.bin/indent/args.c
@@ -0,0 +1,300 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ * Argument scanning and profile reading code. Default parameters are set
+ * here as well.
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+
+/* profile types */
+#define PRO_SPECIAL 1 /* special case */
+#define PRO_BOOL 2 /* boolean */
+#define PRO_INT 3 /* integer */
+#define PRO_FONT 4 /* troff font */
+
+/* profile specials for booleans */
+#define ON 1 /* turn it on */
+#define OFF 0 /* turn it off */
+
+/* profile specials for specials */
+#define IGN 1 /* ignore it */
+#define CLI 2 /* case label indent (float) */
+#define STDIN 3 /* use stdin */
+#define KEY 4 /* type (keyword) */
+
+char *option_source = "?";
+
+/*
+ * N.B.: because of the way the table here is scanned, options whose names are
+ * substrings of other options must occur later; that is, with -lp vs -l, -lp
+ * must be first. Also, while (most) booleans occur more than once, the last
+ * default value is the one actually assigned.
+ */
+struct pro {
+ char *p_name; /* name, eg -bl, -cli */
+ int p_type; /* type (int, bool, special) */
+ int p_default; /* the default value (if int) */
+ int p_special; /* depends on type */
+ int *p_obj; /* the associated variable */
+} pro[] = {
+
+ "T", PRO_SPECIAL, 0, KEY, 0,
+ "bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation,
+ "badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop,
+ "bad", PRO_BOOL, false, ON, &blanklines_after_declarations,
+ "bap", PRO_BOOL, false, ON, &blanklines_after_procs,
+ "bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments,
+ "bc", PRO_BOOL, true, OFF, &ps.leave_comma,
+ "bl", PRO_BOOL, true, OFF, &btype_2,
+ "br", PRO_BOOL, true, ON, &btype_2,
+ "bs", PRO_BOOL, false, ON, &Bill_Shannon,
+ "cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline,
+ "cd", PRO_INT, 0, 0, &ps.decl_com_ind,
+ "ce", PRO_BOOL, true, ON, &cuddle_else,
+ "ci", PRO_INT, 0, 0, &continuation_indent,
+ "cli", PRO_SPECIAL, 0, CLI, 0,
+ "c", PRO_INT, 33, 0, &ps.com_ind,
+ "di", PRO_INT, 16, 0, &ps.decl_indent,
+ "dj", PRO_BOOL, false, ON, &ps.ljust_decl,
+ "d", PRO_INT, 0, 0, &ps.unindent_displace,
+ "eei", PRO_BOOL, false, ON, &extra_expression_indent,
+ "ei", PRO_BOOL, true, ON, &ps.else_if,
+ "fbc", PRO_FONT, 0, 0, (int *) &blkcomf,
+ "fbx", PRO_FONT, 0, 0, (int *) &boxcomf,
+ "fb", PRO_FONT, 0, 0, (int *) &bodyf,
+ "fc1", PRO_BOOL, true, ON, &format_col1_comments,
+ "fc", PRO_FONT, 0, 0, (int *) &scomf,
+ "fk", PRO_FONT, 0, 0, (int *) &keywordf,
+ "fs", PRO_FONT, 0, 0, (int *) &stringf,
+ "ip", PRO_BOOL, true, ON, &ps.indent_parameters,
+ "i", PRO_INT, 8, 0, &ps.ind_size,
+ "lc", PRO_INT, 0, 0, &block_comment_max_col,
+ "lp", PRO_BOOL, true, ON, &lineup_to_parens,
+ "l", PRO_INT, 78, 0, &max_col,
+ "nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation,
+ "nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop,
+ "nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations,
+ "nbap", PRO_BOOL, false, OFF, &blanklines_after_procs,
+ "nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments,
+ "nbc", PRO_BOOL, true, ON, &ps.leave_comma,
+ "nbs", PRO_BOOL, false, OFF, &Bill_Shannon,
+ "ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline,
+ "nce", PRO_BOOL, true, OFF, &cuddle_else,
+ "ndj", PRO_BOOL, false, OFF, &ps.ljust_decl,
+ "neei", PRO_BOOL, false, OFF, &extra_expression_indent,
+ "nei", PRO_BOOL, true, OFF, &ps.else_if,
+ "nfc1", PRO_BOOL, true, OFF, &format_col1_comments,
+ "nip", PRO_BOOL, true, OFF, &ps.indent_parameters,
+ "nlp", PRO_BOOL, true, OFF, &lineup_to_parens,
+ "npcs", PRO_BOOL, false, OFF, &proc_calls_space,
+ "npro", PRO_SPECIAL, 0, IGN, 0,
+ "npsl", PRO_BOOL, true, OFF, &procnames_start_line,
+ "nps", PRO_BOOL, false, OFF, &pointer_as_binop,
+ "nsc", PRO_BOOL, true, OFF, &star_comment_cont,
+ "nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines,
+ "nv", PRO_BOOL, false, OFF, &verbose,
+ "pcs", PRO_BOOL, false, ON, &proc_calls_space,
+ "psl", PRO_BOOL, true, ON, &procnames_start_line,
+ "ps", PRO_BOOL, false, ON, &pointer_as_binop,
+ "sc", PRO_BOOL, true, ON, &star_comment_cont,
+ "sob", PRO_BOOL, false, ON, &swallow_optional_blanklines,
+ "st", PRO_SPECIAL, 0, STDIN, 0,
+ "troff", PRO_BOOL, false, ON, &troff,
+ "v", PRO_BOOL, false, ON, &verbose,
+ /* whew! */
+ 0, 0, 0, 0, 0
+};
+
+/*
+ * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
+ * given in these files.
+ */
+set_profile()
+{
+ register FILE *f;
+ char fname[BUFSIZ];
+ static char prof[] = ".indent.pro";
+
+ sprintf(fname, "%s/%s", getenv("HOME"), prof);
+ if ((f = fopen(option_source = fname, "r")) != NULL) {
+ scan_profile(f);
+ (void) fclose(f);
+ }
+ if ((f = fopen(option_source = prof, "r")) != NULL) {
+ scan_profile(f);
+ (void) fclose(f);
+ }
+ option_source = "Command line";
+}
+
+scan_profile(f)
+ register FILE *f;
+{
+ register int i;
+ register char *p;
+ char buf[BUFSIZ];
+
+ while (1) {
+ for (p = buf; (i = getc(f)) != EOF && (*p = i) > ' '; ++p);
+ if (p != buf) {
+ *p++ = 0;
+ if (verbose)
+ printf("profile: %s\n", buf);
+ set_option(buf);
+ }
+ else if (i == EOF)
+ return;
+ }
+}
+
+char *param_start;
+
+eqin(s1, s2)
+ register char *s1;
+ register char *s2;
+{
+ while (*s1) {
+ if (*s1++ != *s2++)
+ return (false);
+ }
+ param_start = s2;
+ return (true);
+}
+
+/*
+ * Set the defaults.
+ */
+set_defaults()
+{
+ register struct pro *p;
+
+ /*
+ * Because ps.case_indent is a float, we can't initialize it from the
+ * table:
+ */
+ ps.case_indent = 0.0; /* -cli0.0 */
+ for (p = pro; p->p_name; p++)
+ if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
+ *p->p_obj = p->p_default;
+}
+
+set_option(arg)
+ register char *arg;
+{
+ register struct pro *p;
+ extern double atof();
+
+ arg++; /* ignore leading "-" */
+ for (p = pro; p->p_name; p++)
+ if (*p->p_name == *arg && eqin(p->p_name, arg))
+ goto found;
+ fprintf(stderr, "indent: %s: unknown parameter \"%s\"\n", option_source, arg - 1);
+ exit(1);
+found:
+ switch (p->p_type) {
+
+ case PRO_SPECIAL:
+ switch (p->p_special) {
+
+ case IGN:
+ break;
+
+ case CLI:
+ if (*param_start == 0)
+ goto need_param;
+ ps.case_indent = atof(param_start);
+ break;
+
+ case STDIN:
+ if (input == 0)
+ input = stdin;
+ if (output == 0)
+ output = stdout;
+ break;
+
+ case KEY:
+ if (*param_start == 0)
+ goto need_param;
+ {
+ register char *str = (char *) malloc(strlen(param_start) + 1);
+ strcpy(str, param_start);
+ addkey(str, 4);
+ }
+ break;
+
+ default:
+ fprintf(stderr, "\
+indent: set_option: internal error: p_special %d\n", p->p_special);
+ exit(1);
+ }
+ break;
+
+ case PRO_BOOL:
+ if (p->p_special == OFF)
+ *p->p_obj = false;
+ else
+ *p->p_obj = true;
+ break;
+
+ case PRO_INT:
+ if (!isdigit(*param_start)) {
+ need_param:
+ fprintf(stderr, "indent: %s: ``%s'' requires a parameter\n",
+ option_source, arg - 1);
+ exit(1);
+ }
+ *p->p_obj = atoi(param_start);
+ break;
+
+ case PRO_FONT:
+ parsefont((struct fstate *) p->p_obj, param_start);
+ break;
+
+ default:
+ fprintf(stderr, "indent: set_option: internal error: p_type %d\n",
+ p->p_type);
+ exit(1);
+ }
+}
diff --git a/usr.bin/indent/indent.1 b/usr.bin/indent/indent.1
new file mode 100644
index 0000000..c44964a
--- /dev/null
+++ b/usr.bin/indent/indent.1
@@ -0,0 +1,452 @@
+.\" Copyright (c) 1980, 1990, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\" Copyright (c) 1976 Board of Trustees of the University of Illinois.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)indent.1 8.1 (Berkeley) 7/1/93
+.\"
+.Dd July 1, 1993
+.Dt INDENT 1
+.Os BSD 4.2
+.Sh NAME
+.Nm indent
+.Nd indent and format C program source
+.Sh SYNOPSIS
+.Nm indent
+.Op Ar input-file Op Ar output-file
+.Op Fl bad | Fl nbad
+.Op Fl bap | Fl nbap
+.Bk -words
+.Op Fl bbb | Fl nbbb
+.Ek
+.Op Fl \&bc | Fl nbc
+.Op Fl \&bl
+.Op Fl \&br
+.Op Fl c Ns Ar n
+.Op Fl \&cd Ns Ar n
+.Bk -words
+.Op Fl cdb | Fl ncdb
+.Ek
+.Op Fl \&ce | Fl nce
+.Op Fl \&ci Ns Ar n
+.Op Fl cli Ns Ar n
+.Op Fl d Ns Ar n
+.Op Fl \&di Ns Ar n
+.Bk -words
+.Op Fl fc1 | Fl nfc1
+.Ek
+.Op Fl i Ns Ar n
+.Op Fl \&ip | Fl nip
+.Op Fl l Ns Ar n
+.Op Fl \&lc Ns Ar n
+.Op Fl \&lp | Fl nlp
+.Op Fl npro
+.Op Fl pcs | Fl npcs
+.Op Fl psl | Fl npsl
+.Op Fl \&sc | Fl nsc
+.Bk -words
+.Op Fl sob | Fl nsob
+.Ek
+.Op Fl \&st
+.Op Fl troff
+.Op Fl v | Fl \&nv
+.Sh DESCRIPTION
+.Nm Indent
+is a
+.Ar C
+program formatter. It reformats the
+.Ar C
+program in the
+.Ar input-file
+according to the switches. The switches which can be
+specified are described below. They may appear before or after the file
+names.
+.Pp
+.Sy NOTE :
+If you only specify an
+.Ar input-file ,
+the formatting is
+done `in-place', that is, the formatted file is written back into
+.Ar input-file
+and a backup copy of
+.Ar input-file
+is written in the current directory. If
+.Ar input-file
+is named
+.Sq Pa /blah/blah/file ,
+the backup file is named
+.Pa file.BAK .
+.Pp
+If
+.Ar output-file
+is specified,
+.Nm indent
+checks to make sure it is different from
+.Ar input-file .
+.Pp
+The options listed below control the formatting style imposed by
+.Nm indent .
+.Bl -tag -width Op
+.It Fl bad , nbad
+If
+.Fl bad
+is specified, a blank line is forced after every block of
+declarations. Default:
+.Fl nbad .
+.It Fl bap , nbap
+If
+.Fl bap
+is specified, a blank line is forced after every procedure body. Default:
+.Fl nbap .
+.It Fl bbb , nbbb
+If
+.Fl bbb
+is specified, a blank line is forced before every block comment. Default:
+.Fl nbbb .
+.It Fl \&bc , nbc
+If
+.Fl \&bc
+is specified, then a newline is forced after each comma in a declaration.
+.Fl nbc
+turns off this option. The default is
+.Fl \&bc .
+.It Fl \&br , \&bl
+Specifying
+.Fl \&bl
+lines up compound statements like this:
+.ne 4
+.Bd -literal -offset indent
+if (...)
+{
+ code
+}
+.Ed
+.Pp
+Specifying
+.Fl \&br
+(the default) makes them look like this:
+.ne 3
+.Bd -literal -offset indent
+if (...) {
+ code
+}
+.Ed
+.Pp
+.It Fl c n
+The column in which comments on code start. The default is 33.
+.It Fl cd n
+The column in which comments on declarations start. The default
+is for these comments to start in the same column as those on code.
+.It Fl cdb , ncdb
+Enables (disables) the placement of comment delimiters on blank lines. With
+this option enabled, comments look like this:
+.Bd -literal -offset indent
+.ne 3
+ /*
+ * this is a comment
+ */
+.Ed
+.Pp
+Rather than like this:
+.Bd -literal -offset indent
+ /* this is a comment */
+.Ed
+.Pp
+This only affects block comments, not comments to the right of
+code. The default is
+.Fl cdb .
+.It Fl ce , nce
+Enables (disables) forcing `else's to cuddle up to the immediately preceding
+`}'. The default is
+.Fl \&ce .
+.It Fl \&ci Ns Ar n
+Sets the continuation indent to be
+.Ar n .
+Continuation
+lines will be indented that far from the beginning of the first line of the
+statement. Parenthesized expressions have extra indentation added to
+indicate the nesting, unless
+.Fl \&lp
+is in effect.
+.Fl \&ci
+defaults to the same value as
+.Fl i .
+.It Fl cli Ns Ar n
+Causes case labels to be indented
+.Ar n
+tab stops to the right of the containing
+.Ic switch
+statement.
+.Fl cli0 .5
+causes case labels to be indented half a tab stop. The
+default is
+.Fl cli0 .
+.It Fl d Ns Ar n
+Controls the placement of comments which are not to the
+right of code. The default
+.Fl \&d\&1
+means that such comments are placed one indentation level to the
+left of code. Specifying
+.Fl \&d\&0
+lines up these comments with the code. See the section on comment
+indentation below.
+.It Fl \&di Ns Ar n
+Specifies the indentation, in character positions, from a declaration keyword
+to the following identifier. The default is
+.Fl di16 .
+.It Fl dj , ndj
+.Fl \&dj
+left justifies declarations.
+.Fl ndj
+indents declarations the same as code. The default is
+.Fl ndj .
+.It Fl \&ei , nei
+Enables (disables) special
+.Ic else-if
+processing. If it's enabled, an
+.Ic if
+following an
+.Ic else
+will have the same indentation as the preceding
+.Ic \&if
+statement.
+.It Fl fc1 , nfc1
+Enables (disables) the formatting of comments that start in column 1.
+Often, comments whose leading `/' is in column 1 have been carefully
+hand formatted by the programmer. In such cases,
+.Fl nfc1
+should be
+used. The default is
+.Fl fc1 .
+.It Fl i Ns Ar n
+The number of spaces for one indentation level. The default is 4.
+.It Fl \&ip , nip
+Enables (disables) the indentation of parameter declarations from the left
+margin. The default is
+.Fl \&ip .
+.It Fl l Ns Ar n
+Maximum length of an output line. The default is 75.
+.It Fl \&lp , nlp
+Lines up code surrounded by parenthesis in continuation lines. If a line
+has a left paren which is not closed on that line, then continuation lines
+will be lined up to start at the character position just after the left
+paren. For example, here is how a piece of continued code looks with
+.Fl nlp
+in effect:
+.ne 2
+.Bd -literal -offset indent
+p1 = first_procedure(second_procedure(p2, p3),
+\ \ third_procedure(p4,p5));
+.Ed
+.Pp
+.ne 5
+With
+.Fl lp
+in effect (the default) the code looks somewhat clearer:
+.Bd -literal -offset indent
+p1\ =\ first_procedure(second_procedure(p2,\ p3),
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ third_procedure(p4,p5));
+.Ed
+.Pp
+.ne 5
+Inserting two more newlines we get:
+.Bd -literal -offset indent
+p1\ =\ first_procedure(second_procedure(p2,
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ p3),
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ third_procedure(p4
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ p5));
+.Ed
+.It Fl npro
+Causes the profile files,
+.Sq Pa ./.indent.pro
+and
+.Sq Pa ~/.indent.pro ,
+to be ignored.
+.It Fl pcs , npcs
+If true
+.Pq Fl pcs
+all procedure calls will have a space inserted between
+the name and the `('. The default is
+.Fl npcs .
+.It Fl psl , npsl
+If true
+.Pq Fl psl
+the names of procedures being defined are placed in
+column 1 \- their types, if any, will be left on the previous lines. The
+default is
+.Fl psl .
+.It Fl \&sc , nsc
+Enables (disables) the placement of asterisks (`*'s) at the left edge of all
+comments.
+.It Fl sob , nsob
+If
+.Fl sob
+is specified, indent will swallow optional blank lines. You can use this to
+get rid of blank lines after declarations. Default:
+.Fl nsob .
+.It Fl \&st
+Causes
+.Nm indent
+to take its input from stdin, and put its output to stdout.
+.It Fl T Ns Ar typename
+Adds
+.Ar typename
+to the list of type keywords. Names accumulate:
+.Fl T
+can be specified more than once. You need to specify all the typenames that
+appear in your program that are defined by
+.Ic typedef
+\- nothing will be
+harmed if you miss a few, but the program won't be formatted as nicely as
+it should. This sounds like a painful thing to have to do, but it's really
+a symptom of a problem in C:
+.Ic typedef
+causes a syntactic change in the
+language and
+.Nm indent
+can't find all
+instances of
+.Ic typedef .
+.It Fl troff
+Causes
+.Nm indent
+to format the program for processing by
+.Xr troff 1 .
+It will produce a fancy
+listing in much the same spirit as
+.Xr vgrind 1 .
+If the output file is not specified, the default is standard output,
+rather than formatting in place.
+.It Fl v , \&nv
+.Fl v
+turns on `verbose' mode;
+.Fl \&nv
+turns it off. When in verbose mode,
+.Nm indent
+reports when it splits one line of input into two or more lines of output,
+and gives some size statistics at completion. The default is
+.Fl \&nv .
+.El
+.Pp
+You may set up your own `profile' of defaults to
+.Nm indent
+by creating a file called
+.Pa .indent.pro
+in your login directory and/or the current directory and including
+whatever switches you like. A `.indent.pro' in the current directory takes
+precedence over the one in your login directory. If
+.Nm indent
+is run and a profile file exists, then it is read to set up the program's
+defaults. Switches on the command line, though, always override profile
+switches. The switches should be separated by spaces, tabs or newlines.
+.Pp
+.Ss Comments
+.Sq Em Box
+.Em comments .
+.Nm Indent
+assumes that any comment with a dash or star immediately after the start of
+comment (that is, `/*\-' or `/**') is a comment surrounded by a box of stars.
+Each line of such a comment is left unchanged, except that its indentation
+may be adjusted to account for the change in indentation of the first line
+of the comment.
+.Pp
+.Em Straight text .
+All other comments are treated as straight text.
+.Nm Indent
+fits as many words (separated by blanks, tabs, or newlines) on a
+line as possible. Blank lines break paragraphs.
+.Pp
+.Ss Comment indentation
+If a comment is on a line with code it is started in the `comment column',
+which is set by the
+.Fl c Ns Ns Ar n
+command line parameter. Otherwise, the comment is started at
+.Ar n
+indentation levels less than where code is currently being placed, where
+.Ar n
+is specified by the
+.Fl d Ns Ns Ar n
+command line parameter. If the code on a line extends past the comment
+column, the comment starts further to the right, and the right margin may be
+automatically extended in extreme cases.
+.Pp
+.Ss Preprocessor lines
+In general,
+.Nm indent
+leaves preprocessor lines alone. The only
+reformatting that it will do is to straighten up trailing comments. It
+leaves embedded comments alone. Conditional compilation
+.Pq Ic #ifdef...#endif
+is recognized and
+.Nm indent
+attempts to correctly
+compensate for the syntactic peculiarities introduced.
+.Pp
+.Ss C syntax
+.Nm Indent
+understands a substantial amount about the syntax of C, but it
+has a `forgiving' parser. It attempts to cope with the usual sorts of
+incomplete and misformed syntax. In particular, the use of macros like:
+.Pp
+.Dl #define forever for(;;)
+.Pp
+is handled properly.
+.Sh ENVIRONMENT
+.Nm Indent
+uses the
+.Ev HOME
+environment variable.
+.Sh FILES
+.Bl -tag -width "./.indent.pro" -compact
+.It Pa ./.indent.pro
+profile file
+.It Pa ~/.indent.pro
+profile file
+.El
+.Sh HISTORY
+The
+.Nm indent
+command appeared in
+.Bx 4.2 .
+.Sh BUGS
+.Nm Indent
+has even more switches than
+.Xr ls 1 .
+.Pp
+.ne 5
+A common mistake that often causes grief is typing:
+.Pp
+.Dl indent *.c
+.Pp
+to the shell in an attempt to indent all the
+.Nm C
+programs in a directory.
+This is probably a bug, not a feature.
diff --git a/usr.bin/indent/indent.c b/usr.bin/indent/indent.c
new file mode 100644
index 0000000..132d21f
--- /dev/null
+++ b/usr.bin/indent/indent.c
@@ -0,0 +1,1181 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1976 Board of Trustees of the University of Illinois.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1985 Sun Microsystems, Inc.\n\
+@(#) Copyright (c) 1976 Board of Trustees of the University of Illinois.\n\
+@(#) Copyright (c) 1980, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)indent.c 5.17 (Berkeley) 6/7/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+#include "indent_codes.h"
+#include <ctype.h>
+
+char *in_name = "Standard Input"; /* will always point to name of input
+ * file */
+char *out_name = "Standard Output"; /* will always point to name
+ * of output file */
+char bakfile[MAXPATHLEN] = "";
+
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+
+ extern int found_err; /* flag set in diag() on error */
+ int dec_ind; /* current indentation for declarations */
+ int di_stack[20]; /* a stack of structure indentation levels */
+ int flushed_nl; /* used when buffering up comments to remember
+ * that a newline was passed over */
+ int force_nl; /* when true, code must be broken */
+ int hd_type; /* used to store type of stmt for if (...),
+ * for (...), etc */
+ register int i; /* local loop counter */
+ int scase; /* set to true when we see a case, so we will
+ * know what to do with the following colon */
+ int sp_sw; /* when true, we are in the expressin of
+ * if(...), while(...), etc. */
+ int squest; /* when this is positive, we have seen a ?
+ * without the matching : in a <c>?<s>:<s>
+ * construct */
+ register char *t_ptr; /* used for copying tokens */
+ int type_code; /* the type of token, returned by lexi */
+
+ int last_else = 0; /* true iff last keyword was an else */
+
+
+ /*-----------------------------------------------*\
+ | INITIALIZATION |
+ \*-----------------------------------------------*/
+
+
+ ps.p_stack[0] = stmt; /* this is the parser's stack */
+ ps.last_nl = true; /* this is true if the last thing scanned was
+ * a newline */
+ ps.last_token = semicolon;
+ combuf = (char *) malloc(bufsize);
+ labbuf = (char *) malloc(bufsize);
+ codebuf = (char *) malloc(bufsize);
+ tokenbuf = (char *) malloc(bufsize);
+ l_com = combuf + bufsize - 5;
+ l_lab = labbuf + bufsize - 5;
+ l_code = codebuf + bufsize - 5;
+ l_token = tokenbuf + bufsize - 5;
+ combuf[0] = codebuf[0] = labbuf[0] = ' '; /* set up code, label, and
+ * comment buffers */
+ combuf[1] = codebuf[1] = labbuf[1] = '\0';
+ ps.else_if = 1; /* Default else-if special processing to on */
+ s_lab = e_lab = labbuf + 1;
+ s_code = e_code = codebuf + 1;
+ s_com = e_com = combuf + 1;
+ s_token = e_token = tokenbuf + 1;
+
+ in_buffer = (char *) malloc(10);
+ in_buffer_limit = in_buffer + 8;
+ buf_ptr = buf_end = in_buffer;
+ line_no = 1;
+ had_eof = ps.in_decl = ps.decl_on_line = break_comma = false;
+ sp_sw = force_nl = false;
+ ps.in_or_st = false;
+ ps.bl_line = true;
+ dec_ind = 0;
+ di_stack[ps.dec_nest = 0] = 0;
+ ps.want_blank = ps.in_stmt = ps.ind_stmt = false;
+
+
+ scase = ps.pcase = false;
+ squest = 0;
+ sc_end = 0;
+ bp_save = 0;
+ be_save = 0;
+
+ output = 0;
+
+
+
+ /*--------------------------------------------------*\
+ | COMMAND LINE SCAN |
+ \*--------------------------------------------------*/
+
+#ifdef undef
+ max_col = 78; /* -l78 */
+ lineup_to_parens = 1; /* -lp */
+ ps.ljust_decl = 0; /* -ndj */
+ ps.com_ind = 33; /* -c33 */
+ star_comment_cont = 1; /* -sc */
+ ps.ind_size = 8; /* -i8 */
+ verbose = 0;
+ ps.decl_indent = 16; /* -di16 */
+ ps.indent_parameters = 1; /* -ip */
+ ps.decl_com_ind = 0; /* if this is not set to some positive value
+ * by an arg, we will set this equal to
+ * ps.com_ind */
+ btype_2 = 1; /* -br */
+ cuddle_else = 1; /* -ce */
+ ps.unindent_displace = 0; /* -d0 */
+ ps.case_indent = 0; /* -cli0 */
+ format_col1_comments = 1; /* -fc1 */
+ procnames_start_line = 1; /* -psl */
+ proc_calls_space = 0; /* -npcs */
+ comment_delimiter_on_blankline = 1; /* -cdb */
+ ps.leave_comma = 1; /* -nbc */
+#endif
+
+ for (i = 1; i < argc; ++i)
+ if (strcmp(argv[i], "-npro") == 0)
+ break;
+ set_defaults();
+ if (i >= argc)
+ set_profile();
+
+ for (i = 1; i < argc; ++i) {
+
+ /*
+ * look thru args (if any) for changes to defaults
+ */
+ if (argv[i][0] != '-') {/* no flag on parameter */
+ if (input == 0) { /* we must have the input file */
+ in_name = argv[i]; /* remember name of input file */
+ input = fopen(in_name, "r");
+ if (input == 0) /* check for open error */
+ err(in_name);
+ continue;
+ }
+ else if (output == 0) { /* we have the output file */
+ out_name = argv[i]; /* remember name of output file */
+ if (strcmp(in_name, out_name) == 0) { /* attempt to overwrite
+ * the file */
+ fprintf(stderr, "indent: input and output files must be different\n");
+ exit(1);
+ }
+ output = fopen(out_name, "w");
+ if (output == 0) /* check for create error */
+ err(out_name);
+ continue;
+ }
+ fprintf(stderr, "indent: unknown parameter: %s\n", argv[i]);
+ exit(1);
+ }
+ else
+ set_option(argv[i]);
+ } /* end of for */
+ if (input == 0) {
+ fprintf(stderr, "indent: usage: indent file [ outfile ] [ options ]\n");
+ exit(1);
+ }
+ if (output == 0)
+ if (troff)
+ output = stdout;
+ else {
+ out_name = in_name;
+ bakcopy();
+ }
+ if (ps.com_ind <= 1)
+ ps.com_ind = 2; /* dont put normal comments before column 2 */
+ if (troff) {
+ if (bodyf.font[0] == 0)
+ parsefont(&bodyf, "R");
+ if (scomf.font[0] == 0)
+ parsefont(&scomf, "I");
+ if (blkcomf.font[0] == 0)
+ blkcomf = scomf, blkcomf.size += 2;
+ if (boxcomf.font[0] == 0)
+ boxcomf = blkcomf;
+ if (stringf.font[0] == 0)
+ parsefont(&stringf, "L");
+ if (keywordf.font[0] == 0)
+ parsefont(&keywordf, "B");
+ writefdef(&bodyf, 'B');
+ writefdef(&scomf, 'C');
+ writefdef(&blkcomf, 'L');
+ writefdef(&boxcomf, 'X');
+ writefdef(&stringf, 'S');
+ writefdef(&keywordf, 'K');
+ }
+ if (block_comment_max_col <= 0)
+ block_comment_max_col = max_col;
+ if (ps.decl_com_ind <= 0) /* if not specified by user, set this */
+ ps.decl_com_ind = ps.ljust_decl ? (ps.com_ind <= 10 ? 2 : ps.com_ind - 8) : ps.com_ind;
+ if (continuation_indent == 0)
+ continuation_indent = ps.ind_size;
+ fill_buffer(); /* get first batch of stuff into input buffer */
+
+ parse(semicolon);
+ {
+ register char *p = buf_ptr;
+ register col = 1;
+
+ while (1) {
+ if (*p == ' ')
+ col++;
+ else if (*p == '\t')
+ col = ((col - 1) & ~7) + 9;
+ else
+ break;
+ p++;
+ }
+ if (col > ps.ind_size)
+ ps.ind_level = ps.i_l_follow = col / ps.ind_size;
+ }
+ if (troff) {
+ register char *p = in_name,
+ *beg = in_name;
+
+ while (*p)
+ if (*p++ == '/')
+ beg = p;
+ fprintf(output, ".Fn \"%s\"\n", beg);
+ }
+ /*
+ * START OF MAIN LOOP
+ */
+
+ while (1) { /* this is the main loop. it will go until we
+ * reach eof */
+ int is_procname;
+
+ type_code = lexi(); /* lexi reads one token. The actual
+ * characters read are stored in "token". lexi
+ * returns a code indicating the type of token */
+ is_procname = ps.procname[0];
+
+ /*
+ * The following code moves everything following an if (), while (),
+ * else, etc. up to the start of the following stmt to a buffer. This
+ * allows proper handling of both kinds of brace placement.
+ */
+
+ flushed_nl = false;
+ while (ps.search_brace) { /* if we scanned an if(), while(),
+ * etc., we might need to copy stuff
+ * into a buffer we must loop, copying
+ * stuff into save_com, until we find
+ * the start of the stmt which follows
+ * the if, or whatever */
+ switch (type_code) {
+ case newline:
+ ++line_no;
+ flushed_nl = true;
+ case form_feed:
+ break; /* form feeds and newlines found here will be
+ * ignored */
+
+ case lbrace: /* this is a brace that starts the compound
+ * stmt */
+ if (sc_end == 0) { /* ignore buffering if a comment wasnt
+ * stored up */
+ ps.search_brace = false;
+ goto check_type;
+ }
+ if (btype_2) {
+ save_com[0] = '{'; /* we either want to put the brace
+ * right after the if */
+ goto sw_buffer; /* go to common code to get out of
+ * this loop */
+ }
+ case comment: /* we have a comment, so we must copy it into
+ * the buffer */
+ if (!flushed_nl || sc_end != 0) {
+ if (sc_end == 0) { /* if this is the first comment, we
+ * must set up the buffer */
+ save_com[0] = save_com[1] = ' ';
+ sc_end = &(save_com[2]);
+ }
+ else {
+ *sc_end++ = '\n'; /* add newline between
+ * comments */
+ *sc_end++ = ' ';
+ --line_no;
+ }
+ *sc_end++ = '/'; /* copy in start of comment */
+ *sc_end++ = '*';
+
+ for (;;) { /* loop until we get to the end of the comment */
+ *sc_end = *buf_ptr++;
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+
+ if (*sc_end++ == '*' && *buf_ptr == '/')
+ break; /* we are at end of comment */
+
+ if (sc_end >= &(save_com[sc_size])) { /* check for temp buffer
+ * overflow */
+ diag(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever.");
+ fflush(output);
+ exit(1);
+ }
+ }
+ *sc_end++ = '/'; /* add ending slash */
+ if (++buf_ptr >= buf_end) /* get past / in buffer */
+ fill_buffer();
+ break;
+ }
+ default: /* it is the start of a normal statment */
+ if (flushed_nl) /* if we flushed a newline, make sure it is
+ * put back */
+ force_nl = true;
+ if (type_code == sp_paren && *token == 'i'
+ && last_else && ps.else_if
+ || type_code == sp_nparen && *token == 'e'
+ && e_code != s_code && e_code[-1] == '}')
+ force_nl = false;
+
+ if (sc_end == 0) { /* ignore buffering if comment wasnt
+ * saved up */
+ ps.search_brace = false;
+ goto check_type;
+ }
+ if (force_nl) { /* if we should insert a nl here, put it into
+ * the buffer */
+ force_nl = false;
+ --line_no; /* this will be re-increased when the nl is
+ * read from the buffer */
+ *sc_end++ = '\n';
+ *sc_end++ = ' ';
+ if (verbose && !flushed_nl) /* print error msg if the line
+ * was not already broken */
+ diag(0, "Line broken");
+ flushed_nl = false;
+ }
+ for (t_ptr = token; *t_ptr; ++t_ptr)
+ *sc_end++ = *t_ptr; /* copy token into temp buffer */
+ ps.procname[0] = 0;
+
+ sw_buffer:
+ ps.search_brace = false; /* stop looking for start of
+ * stmt */
+ bp_save = buf_ptr; /* save current input buffer */
+ be_save = buf_end;
+ buf_ptr = save_com; /* fix so that subsequent calls to
+ * lexi will take tokens out of
+ * save_com */
+ *sc_end++ = ' ';/* add trailing blank, just in case */
+ buf_end = sc_end;
+ sc_end = 0;
+ break;
+ } /* end of switch */
+ if (type_code != 0) /* we must make this check, just in case there
+ * was an unexpected EOF */
+ type_code = lexi(); /* read another token */
+ /* if (ps.search_brace) ps.procname[0] = 0; */
+ if ((is_procname = ps.procname[0]) && flushed_nl
+ && !procnames_start_line && ps.in_decl
+ && type_code == ident)
+ flushed_nl = 0;
+ } /* end of while (search_brace) */
+ last_else = 0;
+check_type:
+ if (type_code == 0) { /* we got eof */
+ if (s_lab != e_lab || s_code != e_code
+ || s_com != e_com) /* must dump end of line */
+ dump_line();
+ if (ps.tos > 1) /* check for balanced braces */
+ diag(1, "Stuff missing from end of file.");
+
+ if (verbose) {
+ printf("There were %d output lines and %d comments\n",
+ ps.out_lines, ps.out_coms);
+ printf("(Lines with comments)/(Lines with code): %6.3f\n",
+ (1.0 * ps.com_lines) / code_lines);
+ }
+ fflush(output);
+ exit(found_err);
+ }
+ if (
+ (type_code != comment) &&
+ (type_code != newline) &&
+ (type_code != preesc) &&
+ (type_code != form_feed)) {
+ if (force_nl &&
+ (type_code != semicolon) &&
+ (type_code != lbrace || !btype_2)) {
+ /* we should force a broken line here */
+ if (verbose && !flushed_nl)
+ diag(0, "Line broken");
+ flushed_nl = false;
+ dump_line();
+ ps.want_blank = false; /* dont insert blank at line start */
+ force_nl = false;
+ }
+ ps.in_stmt = true; /* turn on flag which causes an extra level of
+ * indentation. this is turned off by a ; or
+ * '}' */
+ if (s_com != e_com) { /* the turkey has embedded a comment
+ * in a line. fix it */
+ *e_code++ = ' ';
+ for (t_ptr = s_com; *t_ptr; ++t_ptr) {
+ CHECK_SIZE_CODE;
+ *e_code++ = *t_ptr;
+ }
+ *e_code++ = ' ';
+ *e_code = '\0'; /* null terminate code sect */
+ ps.want_blank = false;
+ e_com = s_com;
+ }
+ }
+ else if (type_code != comment) /* preserve force_nl thru a comment */
+ force_nl = false; /* cancel forced newline after newline, form
+ * feed, etc */
+
+
+
+ /*-----------------------------------------------------*\
+ | do switch on type of token scanned |
+ \*-----------------------------------------------------*/
+ CHECK_SIZE_CODE;
+ switch (type_code) { /* now, decide what to do with the token */
+
+ case form_feed: /* found a form feed in line */
+ ps.use_ff = true; /* a form feed is treated much like a newline */
+ dump_line();
+ ps.want_blank = false;
+ break;
+
+ case newline:
+ if (ps.last_token != comma || ps.p_l_follow > 0
+ || !ps.leave_comma || ps.block_init || !break_comma || s_com != e_com) {
+ dump_line();
+ ps.want_blank = false;
+ }
+ ++line_no; /* keep track of input line number */
+ break;
+
+ case lparen: /* got a '(' or '[' */
+ ++ps.p_l_follow; /* count parens to make Healy happy */
+ if (ps.want_blank && *token != '[' &&
+ (ps.last_token != ident || proc_calls_space
+ || (ps.its_a_keyword && (!ps.sizeof_keyword || Bill_Shannon))))
+ *e_code++ = ' ';
+ if (ps.in_decl && !ps.block_init)
+ if (troff && !ps.dumped_decl_indent && !is_procname && ps.last_token == decl) {
+ ps.dumped_decl_indent = 1;
+ sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
+ e_code += strlen(e_code);
+ }
+ else {
+ while ((e_code - s_code) < dec_ind) {
+ CHECK_SIZE_CODE;
+ *e_code++ = ' ';
+ }
+ *e_code++ = token[0];
+ }
+ else
+ *e_code++ = token[0];
+ ps.paren_indents[ps.p_l_follow - 1] = e_code - s_code;
+ if (sp_sw && ps.p_l_follow == 1 && extra_expression_indent
+ && ps.paren_indents[0] < 2 * ps.ind_size)
+ ps.paren_indents[0] = 2 * ps.ind_size;
+ ps.want_blank = false;
+ if (ps.in_or_st && *token == '(' && ps.tos <= 2) {
+ /*
+ * this is a kluge to make sure that declarations will be
+ * aligned right if proc decl has an explicit type on it, i.e.
+ * "int a(x) {..."
+ */
+ parse(semicolon); /* I said this was a kluge... */
+ ps.in_or_st = false; /* turn off flag for structure decl or
+ * initialization */
+ }
+ if (ps.sizeof_keyword)
+ ps.sizeof_mask |= 1 << ps.p_l_follow;
+ break;
+
+ case rparen: /* got a ')' or ']' */
+ rparen_count--;
+ if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.sizeof_mask) {
+ ps.last_u_d = true;
+ ps.cast_mask &= (1 << ps.p_l_follow) - 1;
+ }
+ ps.sizeof_mask &= (1 << ps.p_l_follow) - 1;
+ if (--ps.p_l_follow < 0) {
+ ps.p_l_follow = 0;
+ diag(0, "Extra %c", *token);
+ }
+ if (e_code == s_code) /* if the paren starts the line */
+ ps.paren_level = ps.p_l_follow; /* then indent it */
+
+ *e_code++ = token[0];
+ ps.want_blank = true;
+
+ if (sp_sw && (ps.p_l_follow == 0)) { /* check for end of if
+ * (...), or some such */
+ sp_sw = false;
+ force_nl = true;/* must force newline after if */
+ ps.last_u_d = true; /* inform lexi that a following
+ * operator is unary */
+ ps.in_stmt = false; /* dont use stmt continuation
+ * indentation */
+
+ parse(hd_type); /* let parser worry about if, or whatever */
+ }
+ ps.search_brace = btype_2; /* this should insure that constructs
+ * such as main(){...} and int[]{...}
+ * have their braces put in the right
+ * place */
+ break;
+
+ case unary_op: /* this could be any unary operation */
+ if (ps.want_blank)
+ *e_code++ = ' ';
+
+ if (troff && !ps.dumped_decl_indent && ps.in_decl && !is_procname) {
+ sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
+ ps.dumped_decl_indent = 1;
+ e_code += strlen(e_code);
+ }
+ else {
+ char *res = token;
+
+ if (ps.in_decl && !ps.block_init) { /* if this is a unary op
+ * in a declaration, we
+ * should indent this
+ * token */
+ for (i = 0; token[i]; ++i); /* find length of token */
+ while ((e_code - s_code) < (dec_ind - i)) {
+ CHECK_SIZE_CODE;
+ *e_code++ = ' '; /* pad it */
+ }
+ }
+ if (troff && token[0] == '-' && token[1] == '>')
+ res = "\\(->";
+ for (t_ptr = res; *t_ptr; ++t_ptr) {
+ CHECK_SIZE_CODE;
+ *e_code++ = *t_ptr;
+ }
+ }
+ ps.want_blank = false;
+ break;
+
+ case binary_op: /* any binary operation */
+ if (ps.want_blank)
+ *e_code++ = ' ';
+ {
+ char *res = token;
+
+ if (troff)
+ switch (token[0]) {
+ case '<':
+ if (token[1] == '=')
+ res = "\\(<=";
+ break;
+ case '>':
+ if (token[1] == '=')
+ res = "\\(>=";
+ break;
+ case '!':
+ if (token[1] == '=')
+ res = "\\(!=";
+ break;
+ case '|':
+ if (token[1] == '|')
+ res = "\\(br\\(br";
+ else if (token[1] == 0)
+ res = "\\(br";
+ break;
+ }
+ for (t_ptr = res; *t_ptr; ++t_ptr) {
+ CHECK_SIZE_CODE;
+ *e_code++ = *t_ptr; /* move the operator */
+ }
+ }
+ ps.want_blank = true;
+ break;
+
+ case postop: /* got a trailing ++ or -- */
+ *e_code++ = token[0];
+ *e_code++ = token[1];
+ ps.want_blank = true;
+ break;
+
+ case question: /* got a ? */
+ squest++; /* this will be used when a later colon
+ * appears so we can distinguish the
+ * <c>?<n>:<n> construct */
+ if (ps.want_blank)
+ *e_code++ = ' ';
+ *e_code++ = '?';
+ ps.want_blank = true;
+ break;
+
+ case casestmt: /* got word 'case' or 'default' */
+ scase = true; /* so we can process the later colon properly */
+ goto copy_id;
+
+ case colon: /* got a ':' */
+ if (squest > 0) { /* it is part of the <c>?<n>: <n> construct */
+ --squest;
+ if (ps.want_blank)
+ *e_code++ = ' ';
+ *e_code++ = ':';
+ ps.want_blank = true;
+ break;
+ }
+ if (ps.in_decl) {
+ *e_code++ = ':';
+ ps.want_blank = false;
+ break;
+ }
+ ps.in_stmt = false; /* seeing a label does not imply we are in a
+ * stmt */
+ for (t_ptr = s_code; *t_ptr; ++t_ptr)
+ *e_lab++ = *t_ptr; /* turn everything so far into a label */
+ e_code = s_code;
+ *e_lab++ = ':';
+ *e_lab++ = ' ';
+ *e_lab = '\0';
+
+ force_nl = ps.pcase = scase; /* ps.pcase will be used by
+ * dump_line to decide how to
+ * indent the label. force_nl
+ * will force a case n: to be
+ * on a line by itself */
+ scase = false;
+ ps.want_blank = false;
+ break;
+
+ case semicolon: /* got a ';' */
+ ps.in_or_st = false;/* we are not in an initialization or
+ * structure declaration */
+ scase = false; /* these will only need resetting in a error */
+ squest = 0;
+ if (ps.last_token == rparen && rparen_count == 0)
+ ps.in_parameter_declaration = 0;
+ ps.cast_mask = 0;
+ ps.sizeof_mask = 0;
+ ps.block_init = 0;
+ ps.block_init_level = 0;
+ ps.just_saw_decl--;
+
+ if (ps.in_decl && s_code == e_code && !ps.block_init)
+ while ((e_code - s_code) < (dec_ind - 1)) {
+ CHECK_SIZE_CODE;
+ *e_code++ = ' ';
+ }
+
+ ps.in_decl = (ps.dec_nest > 0); /* if we were in a first level
+ * structure declaration, we
+ * arent any more */
+
+ if ((!sp_sw || hd_type != forstmt) && ps.p_l_follow > 0) {
+
+ /*
+ * This should be true iff there were unbalanced parens in the
+ * stmt. It is a bit complicated, because the semicolon might
+ * be in a for stmt
+ */
+ diag(1, "Unbalanced parens");
+ ps.p_l_follow = 0;
+ if (sp_sw) { /* this is a check for a if, while, etc. with
+ * unbalanced parens */
+ sp_sw = false;
+ parse(hd_type); /* dont lose the if, or whatever */
+ }
+ }
+ *e_code++ = ';';
+ ps.want_blank = true;
+ ps.in_stmt = (ps.p_l_follow > 0); /* we are no longer in the
+ * middle of a stmt */
+
+ if (!sp_sw) { /* if not if for (;;) */
+ parse(semicolon); /* let parser know about end of stmt */
+ force_nl = true;/* force newline after a end of stmt */
+ }
+ break;
+
+ case lbrace: /* got a '{' */
+ ps.in_stmt = false; /* dont indent the {} */
+ if (!ps.block_init)
+ force_nl = true;/* force other stuff on same line as '{' onto
+ * new line */
+ else if (ps.block_init_level <= 0)
+ ps.block_init_level = 1;
+ else
+ ps.block_init_level++;
+
+ if (s_code != e_code && !ps.block_init) {
+ if (!btype_2) {
+ dump_line();
+ ps.want_blank = false;
+ }
+ else if (ps.in_parameter_declaration && !ps.in_or_st) {
+ ps.i_l_follow = 0;
+ dump_line();
+ ps.want_blank = false;
+ }
+ }
+ if (ps.in_parameter_declaration)
+ prefix_blankline_requested = 0;
+
+ if (ps.p_l_follow > 0) { /* check for preceeding unbalanced
+ * parens */
+ diag(1, "Unbalanced parens");
+ ps.p_l_follow = 0;
+ if (sp_sw) { /* check for unclosed if, for, etc. */
+ sp_sw = false;
+ parse(hd_type);
+ ps.ind_level = ps.i_l_follow;
+ }
+ }
+ if (s_code == e_code)
+ ps.ind_stmt = false; /* dont put extra indentation on line
+ * with '{' */
+ if (ps.in_decl && ps.in_or_st) { /* this is either a structure
+ * declaration or an init */
+ di_stack[ps.dec_nest++] = dec_ind;
+ /* ? dec_ind = 0; */
+ }
+ else {
+ ps.decl_on_line = false; /* we cant be in the middle of
+ * a declaration, so dont do
+ * special indentation of
+ * comments */
+ if (blanklines_after_declarations_at_proctop
+ && ps.in_parameter_declaration)
+ postfix_blankline_requested = 1;
+ ps.in_parameter_declaration = 0;
+ }
+ dec_ind = 0;
+ parse(lbrace); /* let parser know about this */
+ if (ps.want_blank) /* put a blank before '{' if '{' is not at
+ * start of line */
+ *e_code++ = ' ';
+ ps.want_blank = false;
+ *e_code++ = '{';
+ ps.just_saw_decl = 0;
+ break;
+
+ case rbrace: /* got a '}' */
+ if (ps.p_stack[ps.tos] == decl && !ps.block_init) /* semicolons can be
+ * omitted in
+ * declarations */
+ parse(semicolon);
+ if (ps.p_l_follow) {/* check for unclosed if, for, else. */
+ diag(1, "Unbalanced parens");
+ ps.p_l_follow = 0;
+ sp_sw = false;
+ }
+ ps.just_saw_decl = 0;
+ ps.block_init_level--;
+ if (s_code != e_code && !ps.block_init) { /* '}' must be first on
+ * line */
+ if (verbose)
+ diag(0, "Line broken");
+ dump_line();
+ }
+ *e_code++ = '}';
+ ps.want_blank = true;
+ ps.in_stmt = ps.ind_stmt = false;
+ if (ps.dec_nest > 0) { /* we are in multi-level structure
+ * declaration */
+ dec_ind = di_stack[--ps.dec_nest];
+ if (ps.dec_nest == 0 && !ps.in_parameter_declaration)
+ ps.just_saw_decl = 2;
+ ps.in_decl = true;
+ }
+ prefix_blankline_requested = 0;
+ parse(rbrace); /* let parser know about this */
+ ps.search_brace = cuddle_else && ps.p_stack[ps.tos] == ifhead
+ && ps.il[ps.tos] >= ps.ind_level;
+ if (ps.tos <= 1 && blanklines_after_procs && ps.dec_nest <= 0)
+ postfix_blankline_requested = 1;
+ break;
+
+ case swstmt: /* got keyword "switch" */
+ sp_sw = true;
+ hd_type = swstmt; /* keep this for when we have seen the
+ * expression */
+ goto copy_id; /* go move the token into buffer */
+
+ case sp_paren: /* token is if, while, for */
+ sp_sw = true; /* the interesting stuff is done after the
+ * expression is scanned */
+ hd_type = (*token == 'i' ? ifstmt :
+ (*token == 'w' ? whilestmt : forstmt));
+
+ /*
+ * remember the type of header for later use by parser
+ */
+ goto copy_id; /* copy the token into line */
+
+ case sp_nparen: /* got else, do */
+ ps.in_stmt = false;
+ if (*token == 'e') {
+ if (e_code != s_code && (!cuddle_else || e_code[-1] != '}')) {
+ if (verbose)
+ diag(0, "Line broken");
+ dump_line();/* make sure this starts a line */
+ ps.want_blank = false;
+ }
+ force_nl = true;/* also, following stuff must go onto new line */
+ last_else = 1;
+ parse(elselit);
+ }
+ else {
+ if (e_code != s_code) { /* make sure this starts a line */
+ if (verbose)
+ diag(0, "Line broken");
+ dump_line();
+ ps.want_blank = false;
+ }
+ force_nl = true;/* also, following stuff must go onto new line */
+ last_else = 0;
+ parse(dolit);
+ }
+ goto copy_id; /* move the token into line */
+
+ case decl: /* we have a declaration type (int, register,
+ * etc.) */
+ parse(decl); /* let parser worry about indentation */
+ if (ps.last_token == rparen && ps.tos <= 1) {
+ ps.in_parameter_declaration = 1;
+ if (s_code != e_code) {
+ dump_line();
+ ps.want_blank = 0;
+ }
+ }
+ if (ps.in_parameter_declaration && ps.indent_parameters && ps.dec_nest == 0) {
+ ps.ind_level = ps.i_l_follow = 1;
+ ps.ind_stmt = 0;
+ }
+ ps.in_or_st = true; /* this might be a structure or initialization
+ * declaration */
+ ps.in_decl = ps.decl_on_line = true;
+ if ( /* !ps.in_or_st && */ ps.dec_nest <= 0)
+ ps.just_saw_decl = 2;
+ prefix_blankline_requested = 0;
+ for (i = 0; token[i++];); /* get length of token */
+
+ /*
+ * dec_ind = e_code - s_code + (ps.decl_indent>i ? ps.decl_indent
+ * : i);
+ */
+ dec_ind = ps.decl_indent > 0 ? ps.decl_indent : i;
+ goto copy_id;
+
+ case ident: /* got an identifier or constant */
+ if (ps.in_decl) { /* if we are in a declaration, we must indent
+ * identifier */
+ if (ps.want_blank)
+ *e_code++ = ' ';
+ ps.want_blank = false;
+ if (is_procname == 0 || !procnames_start_line) {
+ if (!ps.block_init)
+ if (troff && !ps.dumped_decl_indent) {
+ sprintf(e_code, "\n.De %dp+\200p\n", dec_ind * 7);
+ ps.dumped_decl_indent = 1;
+ e_code += strlen(e_code);
+ }
+ else
+ while ((e_code - s_code) < dec_ind) {
+ CHECK_SIZE_CODE;
+ *e_code++ = ' ';
+ }
+ }
+ else {
+ if (dec_ind && s_code != e_code)
+ dump_line();
+ dec_ind = 0;
+ ps.want_blank = false;
+ }
+ }
+ else if (sp_sw && ps.p_l_follow == 0) {
+ sp_sw = false;
+ force_nl = true;
+ ps.last_u_d = true;
+ ps.in_stmt = false;
+ parse(hd_type);
+ }
+ copy_id:
+ if (ps.want_blank)
+ *e_code++ = ' ';
+ if (troff && ps.its_a_keyword) {
+ e_code = chfont(&bodyf, &keywordf, e_code);
+ for (t_ptr = token; *t_ptr; ++t_ptr) {
+ CHECK_SIZE_CODE;
+ *e_code++ = keywordf.allcaps && islower(*t_ptr)
+ ? toupper(*t_ptr) : *t_ptr;
+ }
+ e_code = chfont(&keywordf, &bodyf, e_code);
+ }
+ else
+ for (t_ptr = token; *t_ptr; ++t_ptr) {
+ CHECK_SIZE_CODE;
+ *e_code++ = *t_ptr;
+ }
+ ps.want_blank = true;
+ break;
+
+ case period: /* treat a period kind of like a binary
+ * operation */
+ *e_code++ = '.'; /* move the period into line */
+ ps.want_blank = false; /* dont put a blank after a period */
+ break;
+
+ case comma:
+ ps.want_blank = (s_code != e_code); /* only put blank after comma
+ * if comma does not start the
+ * line */
+ if (ps.in_decl && is_procname == 0 && !ps.block_init)
+ while ((e_code - s_code) < (dec_ind - 1)) {
+ CHECK_SIZE_CODE;
+ *e_code++ = ' ';
+ }
+
+ *e_code++ = ',';
+ if (ps.p_l_follow == 0) {
+ if (ps.block_init_level <= 0)
+ ps.block_init = 0;
+ if (break_comma && (!ps.leave_comma || compute_code_target() + (e_code - s_code) > max_col - 8))
+ force_nl = true;
+ }
+ break;
+
+ case preesc: /* got the character '#' */
+ if ((s_com != e_com) ||
+ (s_lab != e_lab) ||
+ (s_code != e_code))
+ dump_line();
+ *e_lab++ = '#'; /* move whole line to 'label' buffer */
+ {
+ int in_comment = 0;
+ int com_start = 0;
+ char quote = 0;
+ int com_end = 0;
+
+ while (*buf_ptr == ' ' || *buf_ptr == '\t') {
+ buf_ptr++;
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+ }
+ while (*buf_ptr != '\n' || in_comment) {
+ CHECK_SIZE_LAB;
+ *e_lab = *buf_ptr++;
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+ switch (*e_lab++) {
+ case BACKSLASH:
+ if (troff)
+ *e_lab++ = BACKSLASH;
+ if (!in_comment) {
+ *e_lab++ = *buf_ptr++;
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+ }
+ break;
+ case '/':
+ if (*buf_ptr == '*' && !in_comment && !quote) {
+ in_comment = 1;
+ *e_lab++ = *buf_ptr++;
+ com_start = e_lab - s_lab - 2;
+ }
+ break;
+ case '"':
+ if (quote == '"')
+ quote = 0;
+ break;
+ case '\'':
+ if (quote == '\'')
+ quote = 0;
+ break;
+ case '*':
+ if (*buf_ptr == '/' && in_comment) {
+ in_comment = 0;
+ *e_lab++ = *buf_ptr++;
+ com_end = e_lab - s_lab;
+ }
+ break;
+ }
+ }
+
+ while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
+ e_lab--;
+ if (e_lab - s_lab == com_end && bp_save == 0) { /* comment on
+ * preprocessor line */
+ if (sc_end == 0) /* if this is the first comment, we
+ * must set up the buffer */
+ sc_end = &(save_com[0]);
+ else {
+ *sc_end++ = '\n'; /* add newline between
+ * comments */
+ *sc_end++ = ' ';
+ --line_no;
+ }
+ bcopy(s_lab + com_start, sc_end, com_end - com_start);
+ sc_end += com_end - com_start;
+ if (sc_end >= &save_com[sc_size])
+ abort();
+ e_lab = s_lab + com_start;
+ while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
+ e_lab--;
+ bp_save = buf_ptr; /* save current input buffer */
+ be_save = buf_end;
+ buf_ptr = save_com; /* fix so that subsequent calls to
+ * lexi will take tokens out of
+ * save_com */
+ *sc_end++ = ' '; /* add trailing blank, just in case */
+ buf_end = sc_end;
+ sc_end = 0;
+ }
+ *e_lab = '\0'; /* null terminate line */
+ ps.pcase = false;
+ }
+
+ if (strncmp(s_lab, "#if", 3) == 0) {
+ if (blanklines_around_conditional_compilation) {
+ register c;
+ prefix_blankline_requested++;
+ while ((c = getc(input)) == '\n');
+ ungetc(c, input);
+ }
+ if (ifdef_level < sizeof state_stack / sizeof state_stack[0]) {
+ match_state[ifdef_level].tos = -1;
+ state_stack[ifdef_level++] = ps;
+ }
+ else
+ diag(1, "#if stack overflow");
+ }
+ else if (strncmp(s_lab, "#else", 5) == 0)
+ if (ifdef_level <= 0)
+ diag(1, "Unmatched #else");
+ else {
+ match_state[ifdef_level - 1] = ps;
+ ps = state_stack[ifdef_level - 1];
+ }
+ else if (strncmp(s_lab, "#endif", 6) == 0) {
+ if (ifdef_level <= 0)
+ diag(1, "Unmatched #endif");
+ else {
+ ifdef_level--;
+
+#ifdef undef
+ /*
+ * This match needs to be more intelligent before the
+ * message is useful
+ */
+ if (match_state[ifdef_level].tos >= 0
+ && bcmp(&ps, &match_state[ifdef_level], sizeof ps))
+ diag(0, "Syntactically inconsistant #ifdef alternatives.");
+#endif
+ }
+ if (blanklines_around_conditional_compilation) {
+ postfix_blankline_requested++;
+ n_real_blanklines = 0;
+ }
+ }
+ break; /* subsequent processing of the newline
+ * character will cause the line to be printed */
+
+ case comment: /* we have gotten a /* this is a biggie */
+ if (flushed_nl) { /* we should force a broken line here */
+ flushed_nl = false;
+ dump_line();
+ ps.want_blank = false; /* dont insert blank at line start */
+ force_nl = false;
+ }
+ pr_comment();
+ break;
+ } /* end of big switch stmt */
+
+ *e_code = '\0'; /* make sure code section is null terminated */
+ if (type_code != comment && type_code != newline && type_code != preesc)
+ ps.last_token = type_code;
+ } /* end of main while (1) loop */
+}
+
+/*
+ * copy input file to backup file if in_name is /blah/blah/blah/file, then
+ * backup file will be ".Bfile" then make the backup file the input and
+ * original input file the output
+ */
+bakcopy()
+{
+ int n,
+ bakchn;
+ char buff[8 * 1024];
+ register char *p;
+
+ /* construct file name .Bfile */
+ for (p = in_name; *p; p++); /* skip to end of string */
+ while (p > in_name && *p != '/') /* find last '/' */
+ p--;
+ if (*p == '/')
+ p++;
+ sprintf(bakfile, "%s.BAK", p);
+
+ /* copy in_name to backup file */
+ bakchn = creat(bakfile, 0600);
+ if (bakchn < 0)
+ err(bakfile);
+ while (n = read(fileno(input), buff, sizeof buff))
+ if (write(bakchn, buff, n) != n)
+ err(bakfile);
+ if (n < 0)
+ err(in_name);
+ close(bakchn);
+ fclose(input);
+
+ /* re-open backup file as the input file */
+ input = fopen(bakfile, "r");
+ if (input == 0)
+ err(bakfile);
+ /* now the original input file will be the output */
+ output = fopen(in_name, "w");
+ if (output == 0) {
+ unlink(bakfile);
+ err(in_name);
+ }
+}
+
+err(msg)
+ char *msg;
+{
+ extern int errno;
+ char *strerror();
+
+ (void)fprintf(stderr, "indent: %s: %s\n", msg, strerror(errno));
+ exit(1);
+}
diff --git a/usr.bin/indent/indent_codes.h b/usr.bin/indent/indent_codes.h
new file mode 100644
index 0000000..8373d4e
--- /dev/null
+++ b/usr.bin/indent/indent_codes.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)indent_codes.h 8.1 (Berkeley) 6/6/93
+ */
+
+#define newline 1
+#define lparen 2
+#define rparen 3
+#define unary_op 4
+#define binary_op 5
+#define postop 6
+#define question 7
+#define casestmt 8
+#define colon 9
+#define semicolon 10
+#define lbrace 11
+#define rbrace 12
+#define ident 13
+#define comma 14
+#define comment 15
+#define swstmt 16
+#define preesc 17
+#define form_feed 18
+#define decl 19
+#define sp_paren 20
+#define sp_nparen 21
+#define ifstmt 22
+#define whilestmt 23
+#define forstmt 24
+#define stmt 25
+#define stmtl 26
+#define elselit 27
+#define dolit 28
+#define dohead 29
+#define ifhead 30
+#define elsehead 31
+#define period 32
diff --git a/usr.bin/indent/indent_globs.h b/usr.bin/indent/indent_globs.h
new file mode 100644
index 0000000..8f911ec
--- /dev/null
+++ b/usr.bin/indent/indent_globs.h
@@ -0,0 +1,310 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)indent_globs.h 8.1 (Berkeley) 6/6/93
+ */
+
+#define BACKSLASH '\\'
+#define bufsize 200 /* size of internal buffers */
+#define sc_size 5000 /* size of save_com buffer */
+#define label_offset 2 /* number of levels a label is placed to left
+ * of code */
+
+#define tabsize 8 /* the size of a tab */
+#define tabmask 0177770 /* mask used when figuring length of lines
+ * with tabs */
+
+
+#define false 0
+#define true 1
+
+
+FILE *input; /* the fid for the input file */
+FILE *output; /* the output file */
+
+#define CHECK_SIZE_CODE \
+ if (e_code >= l_code) { \
+ register nsize = l_code-s_code+400; \
+ codebuf = (char *) realloc(codebuf, nsize); \
+ e_code = codebuf + (e_code-s_code) + 1; \
+ l_code = codebuf + nsize - 5; \
+ s_code = codebuf + 1; \
+ }
+#define CHECK_SIZE_COM \
+ if (e_com >= l_com) { \
+ register nsize = l_com-s_com+400; \
+ combuf = (char *) realloc(combuf, nsize); \
+ e_com = combuf + (e_com-s_com) + 1; \
+ l_com = combuf + nsize - 5; \
+ s_com = combuf + 1; \
+ }
+#define CHECK_SIZE_LAB \
+ if (e_lab >= l_lab) { \
+ register nsize = l_lab-s_lab+400; \
+ labbuf = (char *) realloc(labbuf, nsize); \
+ e_lab = labbuf + (e_lab-s_lab) + 1; \
+ l_lab = labbuf + nsize - 5; \
+ s_lab = labbuf + 1; \
+ }
+#define CHECK_SIZE_TOKEN \
+ if (e_token >= l_token) { \
+ register nsize = l_token-s_token+400; \
+ tokenbuf = (char *) realloc(tokenbuf, nsize); \
+ e_token = tokenbuf + (e_token-s_token) + 1; \
+ l_token = tokenbuf + nsize - 5; \
+ s_token = tokenbuf + 1; \
+ }
+
+char *labbuf; /* buffer for label */
+char *s_lab; /* start ... */
+char *e_lab; /* .. and end of stored label */
+char *l_lab; /* limit of label buffer */
+
+char *codebuf; /* buffer for code section */
+char *s_code; /* start ... */
+char *e_code; /* .. and end of stored code */
+char *l_code; /* limit of code section */
+
+char *combuf; /* buffer for comments */
+char *s_com; /* start ... */
+char *e_com; /* ... and end of stored comments */
+char *l_com; /* limit of comment buffer */
+
+#define token s_token
+char *tokenbuf; /* the last token scanned */
+char *s_token;
+char *e_token;
+char *l_token;
+
+char *in_buffer; /* input buffer */
+char *in_buffer_limit; /* the end of the input buffer */
+char *buf_ptr; /* ptr to next character to be taken from
+ * in_buffer */
+char *buf_end; /* ptr to first after last char in in_buffer */
+
+char save_com[sc_size]; /* input text is saved here when looking for
+ * the brace after an if, while, etc */
+char *sc_end; /* pointer into save_com buffer */
+
+char *bp_save; /* saved value of buf_ptr when taking input
+ * from save_com */
+char *be_save; /* similarly saved value of buf_end */
+
+
+int pointer_as_binop;
+int blanklines_after_declarations;
+int blanklines_before_blockcomments;
+int blanklines_after_procs;
+int blanklines_around_conditional_compilation;
+int swallow_optional_blanklines;
+int n_real_blanklines;
+int prefix_blankline_requested;
+int postfix_blankline_requested;
+int break_comma; /* when true and not in parens, break after a
+ * comma */
+int btype_2; /* when true, brace should be on same line as
+ * if, while, etc */
+float case_ind; /* indentation level to be used for a "case
+ * n:" */
+int code_lines; /* count of lines with code */
+int had_eof; /* set to true when input is exhausted */
+int line_no; /* the current line number. */
+int max_col; /* the maximum allowable line length */
+int verbose; /* when true, non-essential error messages are
+ * printed */
+int cuddle_else; /* true if else should cuddle up to '}' */
+int star_comment_cont; /* true iff comment continuation lines should
+ * have stars at the beginning of each line. */
+int comment_delimiter_on_blankline;
+int troff; /* true iff were generating troff input */
+int procnames_start_line; /* if true, the names of procedures
+ * being defined get placed in column
+ * 1 (ie. a newline is placed between
+ * the type of the procedure and its
+ * name) */
+int proc_calls_space; /* If true, procedure calls look like:
+ * foo(bar) rather than foo (bar) */
+int format_col1_comments; /* If comments which start in column 1
+ * are to be magically reformatted
+ * (just like comments that begin in
+ * later columns) */
+int inhibit_formatting; /* true if INDENT OFF is in effect */
+int suppress_blanklines;/* set iff following blanklines should be
+ * suppressed */
+int continuation_indent;/* set to the indentation between the edge of
+ * code and continuation lines */
+int lineup_to_parens; /* if true, continued code within parens will
+ * be lined up to the open paren */
+int Bill_Shannon; /* true iff a blank should always be inserted
+ * after sizeof */
+int blanklines_after_declarations_at_proctop; /* This is vaguely
+ * similar to
+ * blanklines_after_decla
+ * rations except that
+ * it only applies to
+ * the first set of
+ * declarations in a
+ * procedure (just after
+ * the first '{') and it
+ * causes a blank line
+ * to be generated even
+ * if there are no
+ * declarations */
+int block_comment_max_col;
+int extra_expression_indent; /* True if continuation lines from the
+ * expression part of "if(e)",
+ * "while(e)", "for(e;e;e)" should be
+ * indented an extra tab stop so that
+ * they don't conflict with the code
+ * that follows */
+
+/* -troff font state information */
+
+struct fstate {
+ char font[4];
+ char size;
+ int allcaps:1;
+};
+char *chfont();
+
+struct fstate
+ keywordf, /* keyword font */
+ stringf, /* string font */
+ boxcomf, /* Box comment font */
+ blkcomf, /* Block comment font */
+ scomf, /* Same line comment font */
+ bodyf; /* major body font */
+
+
+#define STACKSIZE 150
+
+struct parser_state {
+ int last_token;
+ struct fstate cfont; /* Current font */
+ int p_stack[STACKSIZE]; /* this is the parsers stack */
+ int il[STACKSIZE]; /* this stack stores indentation levels */
+ float cstk[STACKSIZE];/* used to store case stmt indentation levels */
+ int box_com; /* set to true when we are in a "boxed"
+ * comment. In that case, the first non-blank
+ * char should be lined up with the / in /* */
+ int comment_delta,
+ n_comment_delta;
+ int cast_mask; /* indicates which close parens close off
+ * casts */
+ int sizeof_mask; /* indicates which close parens close off
+ * sizeof''s */
+ int block_init; /* true iff inside a block initialization */
+ int block_init_level; /* The level of brace nesting in an
+ * initialization */
+ int last_nl; /* this is true if the last thing scanned was
+ * a newline */
+ int in_or_st; /* Will be true iff there has been a
+ * declarator (e.g. int or char) and no left
+ * paren since the last semicolon. When true,
+ * a '{' is starting a structure definition or
+ * an initialization list */
+ int bl_line; /* set to 1 by dump_line if the line is blank */
+ int col_1; /* set to true if the last token started in
+ * column 1 */
+ int com_col; /* this is the column in which the current
+ * coment should start */
+ int com_ind; /* the column in which comments to the right
+ * of code should start */
+ int com_lines; /* the number of lines with comments, set by
+ * dump_line */
+ int dec_nest; /* current nesting level for structure or init */
+ int decl_com_ind; /* the column in which comments after
+ * declarations should be put */
+ int decl_on_line; /* set to true if this line of code has part
+ * of a declaration on it */
+ int i_l_follow; /* the level to which ind_level should be set
+ * after the current line is printed */
+ int in_decl; /* set to true when we are in a declaration
+ * stmt. The processing of braces is then
+ * slightly different */
+ int in_stmt; /* set to 1 while in a stmt */
+ int ind_level; /* the current indentation level */
+ int ind_size; /* the size of one indentation level */
+ int ind_stmt; /* set to 1 if next line should have an extra
+ * indentation level because we are in the
+ * middle of a stmt */
+ int last_u_d; /* set to true after scanning a token which
+ * forces a following operator to be unary */
+ int leave_comma; /* if true, never break declarations after
+ * commas */
+ int ljust_decl; /* true if declarations should be left
+ * justified */
+ int out_coms; /* the number of comments processed, set by
+ * pr_comment */
+ int out_lines; /* the number of lines written, set by
+ * dump_line */
+ int p_l_follow; /* used to remember how to indent following
+ * statement */
+ int paren_level; /* parenthesization level. used to indent
+ * within stmts */
+ short paren_indents[20]; /* column positions of each paren */
+ int pcase; /* set to 1 if the current line label is a
+ * case. It is printed differently from a
+ * regular label */
+ int search_brace; /* set to true by parse when it is necessary
+ * to buffer up all info up to the start of a
+ * stmt after an if, while, etc */
+ int unindent_displace; /* comments not to the right of code
+ * will be placed this many
+ * indentation levels to the left of
+ * code */
+ int use_ff; /* set to one if the current line should be
+ * terminated with a form feed */
+ int want_blank; /* set to true when the following token should
+ * be prefixed by a blank. (Said prefixing is
+ * ignored in some cases.) */
+ int else_if; /* True iff else if pairs should be handled
+ * specially */
+ int decl_indent; /* column to indent declared identifiers to */
+ int its_a_keyword;
+ int sizeof_keyword;
+ int dumped_decl_indent;
+ float case_indent; /* The distance to indent case labels from the
+ * switch statement */
+ int in_parameter_declaration;
+ int indent_parameters;
+ int tos; /* pointer to top of stack */
+ char procname[100]; /* The name of the current procedure */
+ int just_saw_decl;
+} ps;
+
+int ifdef_level;
+int rparen_count;
+struct parser_state state_stack[5];
+struct parser_state match_state[5];
diff --git a/usr.bin/indent/io.c b/usr.bin/indent/io.c
new file mode 100644
index 0000000..4615db2
--- /dev/null
+++ b/usr.bin/indent/io.c
@@ -0,0 +1,625 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)io.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+
+
+int comment_open;
+static paren_target;
+
+dump_line()
+{ /* dump_line is the routine that actually
+ * effects the printing of the new source. It
+ * prints the label section, followed by the
+ * code section with the appropriate nesting
+ * level, followed by any comments */
+ register int cur_col,
+ target_col;
+ static not_first_line;
+
+ if (ps.procname[0]) {
+ if (troff) {
+ if (comment_open) {
+ comment_open = 0;
+ fprintf(output, ".*/\n");
+ }
+ fprintf(output, ".Pr \"%s\"\n", ps.procname);
+ }
+ ps.ind_level = 0;
+ ps.procname[0] = 0;
+ }
+ if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
+ if (suppress_blanklines > 0)
+ suppress_blanklines--;
+ else {
+ ps.bl_line = true;
+ n_real_blanklines++;
+ }
+ }
+ else if (!inhibit_formatting) {
+ suppress_blanklines = 0;
+ ps.bl_line = false;
+ if (prefix_blankline_requested && not_first_line)
+ if (swallow_optional_blanklines) {
+ if (n_real_blanklines == 1)
+ n_real_blanklines = 0;
+ }
+ else {
+ if (n_real_blanklines == 0)
+ n_real_blanklines = 1;
+ }
+ while (--n_real_blanklines >= 0)
+ putc('\n', output);
+ n_real_blanklines = 0;
+ if (ps.ind_level == 0)
+ ps.ind_stmt = 0; /* this is a class A kludge. dont do
+ * additional statement indentation if we are
+ * at bracket level 0 */
+
+ if (e_lab != s_lab || e_code != s_code)
+ ++code_lines; /* keep count of lines with code */
+
+
+ if (e_lab != s_lab) { /* print lab, if any */
+ if (comment_open) {
+ comment_open = 0;
+ fprintf(output, ".*/\n");
+ }
+ while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
+ e_lab--;
+ cur_col = pad_output(1, compute_label_target());
+ if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
+ || strncmp(s_lab, "#endif", 6) == 0)) {
+ register char *s = s_lab;
+ if (e_lab[-1] == '\n') e_lab--;
+ do putc(*s++, output);
+ while (s < e_lab && 'a' <= *s && *s<='z');
+ while ((*s == ' ' || *s == '\t') && s < e_lab)
+ s++;
+ if (s < e_lab)
+ fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
+ e_lab - s, s);
+ }
+ else fprintf(output, "%.*s", e_lab - s_lab, s_lab);
+ cur_col = count_spaces(cur_col, s_lab);
+ }
+ else
+ cur_col = 1; /* there is no label section */
+
+ ps.pcase = false;
+
+ if (s_code != e_code) { /* print code section, if any */
+ register char *p;
+
+ if (comment_open) {
+ comment_open = 0;
+ fprintf(output, ".*/\n");
+ }
+ target_col = compute_code_target();
+ {
+ register i;
+
+ for (i = 0; i < ps.p_l_follow; i++)
+ if (ps.paren_indents[i] >= 0)
+ ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
+ }
+ cur_col = pad_output(cur_col, target_col);
+ for (p = s_code; p < e_code; p++)
+ if (*p == (char) 0200)
+ fprintf(output, "%d", target_col * 7);
+ else
+ putc(*p, output);
+ cur_col = count_spaces(cur_col, s_code);
+ }
+ if (s_com != e_com)
+ if (troff) {
+ int all_here = 0;
+ register char *p;
+
+ if (e_com[-1] == '/' && e_com[-2] == '*')
+ e_com -= 2, all_here++;
+ while (e_com > s_com && e_com[-1] == ' ')
+ e_com--;
+ *e_com = 0;
+ p = s_com;
+ while (*p == ' ')
+ p++;
+ if (p[0] == '/' && p[1] == '*')
+ p += 2, all_here++;
+ else if (p[0] == '*')
+ p += p[1] == '/' ? 2 : 1;
+ while (*p == ' ')
+ p++;
+ if (*p == 0)
+ goto inhibit_newline;
+ if (comment_open < 2 && ps.box_com) {
+ comment_open = 0;
+ fprintf(output, ".*/\n");
+ }
+ if (comment_open == 0) {
+ if ('a' <= *p && *p <= 'z')
+ *p = *p + 'A' - 'a';
+ if (e_com - p < 50 && all_here == 2) {
+ register char *follow = p;
+ fprintf(output, "\n.nr C! \\w\1");
+ while (follow < e_com) {
+ switch (*follow) {
+ case '\n':
+ putc(' ', output);
+ case 1:
+ break;
+ case '\\':
+ putc('\\', output);
+ default:
+ putc(*follow, output);
+ }
+ follow++;
+ }
+ putc(1, output);
+ }
+ fprintf(output, "\n./* %dp %d %dp\n",
+ ps.com_col * 7,
+ (s_code != e_code || s_lab != e_lab) - ps.box_com,
+ target_col * 7);
+ }
+ comment_open = 1 + ps.box_com;
+ while (*p) {
+ if (*p == BACKSLASH)
+ putc(BACKSLASH, output);
+ putc(*p++, output);
+ }
+ }
+ else { /* print comment, if any */
+ register target = ps.com_col;
+ register char *com_st = s_com;
+
+ target += ps.comment_delta;
+ while (*com_st == '\t')
+ com_st++, target += 8; /* ? */
+ while (target <= 0)
+ if (*com_st == ' ')
+ target++, com_st++;
+ else if (*com_st == '\t')
+ target = ((target - 1) & ~7) + 9, com_st++;
+ else
+ target = 1;
+ if (cur_col > target) { /* if comment cant fit on this line,
+ * put it on next line */
+ putc('\n', output);
+ cur_col = 1;
+ ++ps.out_lines;
+ }
+ while (e_com > com_st && isspace(e_com[-1]))
+ e_com--;
+ cur_col = pad_output(cur_col, target);
+ if (!ps.box_com) {
+ if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1))
+ if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
+ com_st[1] = '*';
+ else
+ fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
+ }
+ fwrite(com_st, e_com - com_st, 1, output);
+ ps.comment_delta = ps.n_comment_delta;
+ cur_col = count_spaces(cur_col, com_st);
+ ++ps.com_lines; /* count lines with comments */
+ }
+ if (ps.use_ff)
+ putc('\014', output);
+ else
+ putc('\n', output);
+inhibit_newline:
+ ++ps.out_lines;
+ if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
+ prefix_blankline_requested = 1;
+ ps.just_saw_decl = 0;
+ }
+ else
+ prefix_blankline_requested = postfix_blankline_requested;
+ postfix_blankline_requested = 0;
+ }
+ ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
+ * declaration, remember that fact for
+ * proper comment indentation */
+ ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
+ * indented if we have not
+ * completed this stmt and if
+ * we are not in the middle of
+ * a declaration */
+ ps.use_ff = false;
+ ps.dumped_decl_indent = 0;
+ *(e_lab = s_lab) = '\0'; /* reset buffers */
+ *(e_code = s_code) = '\0';
+ *(e_com = s_com) = '\0';
+ ps.ind_level = ps.i_l_follow;
+ ps.paren_level = ps.p_l_follow;
+ paren_target = -ps.paren_indents[ps.paren_level - 1];
+ not_first_line = 1;
+ return;
+}
+
+compute_code_target()
+{
+ register target_col = ps.ind_size * ps.ind_level + 1;
+
+ if (ps.paren_level)
+ if (!lineup_to_parens)
+ target_col += continuation_indent * ps.paren_level;
+ else {
+ register w;
+ register t = paren_target;
+
+ if ((w = count_spaces(t, s_code) - max_col) > 0
+ && count_spaces(target_col, s_code) <= max_col) {
+ t -= w + 1;
+ if (t > target_col)
+ target_col = t;
+ }
+ else
+ target_col = t;
+ }
+ else if (ps.ind_stmt)
+ target_col += continuation_indent;
+ return target_col;
+}
+
+compute_label_target()
+{
+ return
+ ps.pcase ? (int) (case_ind * ps.ind_size) + 1
+ : *s_lab == '#' ? 1
+ : ps.ind_size * (ps.ind_level - label_offset) + 1;
+}
+
+
+/*
+ * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
+ *
+ * All rights reserved
+ *
+ *
+ * NAME: fill_buffer
+ *
+ * FUNCTION: Reads one block of input into input_buffer
+ *
+ * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
+ * Willcox of CAC Added check for switch back to partly full input
+ * buffer from temporary buffer
+ *
+ */
+int
+fill_buffer()
+{ /* this routine reads stuff from the input */
+ register char *p;
+ register int i;
+ register FILE *f = input;
+
+ if (bp_save != 0) { /* there is a partly filled input buffer left */
+ buf_ptr = bp_save; /* dont read anything, just switch buffers */
+ buf_end = be_save;
+ bp_save = be_save = 0;
+ if (buf_ptr < buf_end)
+ return; /* only return if there is really something in
+ * this buffer */
+ }
+ for (p = in_buffer;;) {
+ if (p >= in_buffer_limit) {
+ register size = (in_buffer_limit - in_buffer) * 2 + 10;
+ register offset = p - in_buffer;
+ in_buffer = (char *) realloc(in_buffer, size);
+ if (in_buffer == 0)
+ err("input line too long");
+ p = in_buffer + offset;
+ in_buffer_limit = in_buffer + size - 2;
+ }
+ if ((i = getc(f)) == EOF) {
+ *p++ = ' ';
+ *p++ = '\n';
+ had_eof = true;
+ break;
+ }
+ *p++ = i;
+ if (i == '\n')
+ break;
+ }
+ buf_ptr = in_buffer;
+ buf_end = p;
+ if (p[-2] == '/' && p[-3] == '*') {
+ if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
+ fill_buffer(); /* flush indent error message */
+ else {
+ int com = 0;
+
+ p = in_buffer;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (*p == '/' && p[1] == '*') {
+ p += 2;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
+ && p[4] == 'N' && p[5] == 'T') {
+ p += 6;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (*p == '*')
+ com = 1;
+ else if (*p == 'O')
+ if (*++p == 'N')
+ p++, com = 1;
+ else if (*p == 'F' && *++p == 'F')
+ p++, com = 2;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
+ if (s_com != e_com || s_lab != e_lab || s_code != e_code)
+ dump_line();
+ if (!(inhibit_formatting = com - 1)) {
+ n_real_blanklines = 0;
+ postfix_blankline_requested = 0;
+ prefix_blankline_requested = 0;
+ suppress_blanklines = 1;
+ }
+ }
+ }
+ }
+ }
+ }
+ if (inhibit_formatting) {
+ p = in_buffer;
+ do
+ putc(*p, output);
+ while (*p++ != '\n');
+ }
+ return;
+}
+
+/*
+ * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
+ *
+ * All rights reserved
+ *
+ *
+ * NAME: pad_output
+ *
+ * FUNCTION: Writes tabs and spaces to move the current column up to the desired
+ * position.
+ *
+ * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
+ *
+ * PARAMETERS: current integer The current column target
+ * nteger The desired column
+ *
+ * RETURNS: Integer value of the new column. (If current >= target, no action is
+ * taken, and current is returned.
+ *
+ * GLOBALS: None
+ *
+ * CALLS: write (sys)
+ *
+ * CALLED BY: dump_line
+ *
+ * HISTORY: initial coding November 1976 D A Willcox of CAC
+ *
+ */
+pad_output(current, target) /* writes tabs and blanks (if necessary) to
+ * get the current output position up to the
+ * target column */
+ int current; /* the current column value */
+ int target; /* position we want it at */
+{
+ register int curr; /* internal column pointer */
+ register int tcur;
+
+ if (troff)
+ fprintf(output, "\\h'|%dp'", (target - 1) * 7);
+ else {
+ if (current >= target)
+ return (current); /* line is already long enough */
+ curr = current;
+ while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
+ putc('\t', output);
+ curr = tcur;
+ }
+ while (curr++ < target)
+ putc(' ', output); /* pad with final blanks */
+ }
+ return (target);
+}
+
+/*
+ * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
+ *
+ * All rights reserved
+ *
+ *
+ * NAME: count_spaces
+ *
+ * FUNCTION: Find out where printing of a given string will leave the current
+ * character position on output.
+ *
+ * ALGORITHM: Run thru input string and add appropriate values to current
+ * position.
+ *
+ * RETURNS: Integer value of position after printing "buffer" starting in column
+ * "current".
+ *
+ * HISTORY: initial coding November 1976 D A Willcox of CAC
+ *
+ */
+int
+count_spaces(current, buffer)
+/*
+ * this routine figures out where the character position will be after
+ * printing the text in buffer starting at column "current"
+ */
+ int current;
+ char *buffer;
+{
+ register char *buf; /* used to look thru buffer */
+ register int cur; /* current character counter */
+
+ cur = current;
+
+ for (buf = buffer; *buf != '\0'; ++buf) {
+ switch (*buf) {
+
+ case '\n':
+ case 014: /* form feed */
+ cur = 1;
+ break;
+
+ case '\t':
+ cur = ((cur - 1) & tabmask) + tabsize + 1;
+ break;
+
+ case 010: /* backspace */
+ --cur;
+ break;
+
+ default:
+ ++cur;
+ break;
+ } /* end of switch */
+ } /* end of for loop */
+ return (cur);
+}
+
+int found_err;
+/* VARARGS2 */
+diag(level, msg, a, b)
+ char *msg;
+{
+ if (level)
+ found_err = 1;
+ if (output == stdout) {
+ fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
+ fprintf(stdout, msg, a, b);
+ fprintf(stdout, " */\n");
+ }
+ else {
+ fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
+ fprintf(stderr, msg, a, b);
+ fprintf(stderr, "\n");
+ }
+}
+
+writefdef(f, nm)
+ register struct fstate *f;
+{
+ fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
+ nm, f->font, nm, f->size);
+}
+
+char *
+chfont(of, nf, s)
+ register struct fstate *of,
+ *nf;
+ char *s;
+{
+ if (of->font[0] != nf->font[0]
+ || of->font[1] != nf->font[1]) {
+ *s++ = '\\';
+ *s++ = 'f';
+ if (nf->font[1]) {
+ *s++ = '(';
+ *s++ = nf->font[0];
+ *s++ = nf->font[1];
+ }
+ else
+ *s++ = nf->font[0];
+ }
+ if (nf->size != of->size) {
+ *s++ = '\\';
+ *s++ = 's';
+ if (nf->size < of->size) {
+ *s++ = '-';
+ *s++ = '0' + of->size - nf->size;
+ }
+ else {
+ *s++ = '+';
+ *s++ = '0' + nf->size - of->size;
+ }
+ }
+ return s;
+}
+
+
+parsefont(f, s0)
+ register struct fstate *f;
+ char *s0;
+{
+ register char *s = s0;
+ int sizedelta = 0;
+ bzero(f, sizeof *f);
+ while (*s) {
+ if (isdigit(*s))
+ f->size = f->size * 10 + *s - '0';
+ else if (isupper(*s))
+ if (f->font[0])
+ f->font[1] = *s;
+ else
+ f->font[0] = *s;
+ else if (*s == 'c')
+ f->allcaps = 1;
+ else if (*s == '+')
+ sizedelta++;
+ else if (*s == '-')
+ sizedelta--;
+ else {
+ fprintf(stderr, "indent: bad font specification: %s\n", s0);
+ exit(1);
+ }
+ s++;
+ }
+ if (f->font[0] == 0)
+ f->font[0] = 'R';
+ if (bodyf.size == 0)
+ bodyf.size = 11;
+ if (f->size == 0)
+ f->size = bodyf.size + sizedelta;
+ else if (sizedelta > 0)
+ f->size += bodyf.size;
+ else
+ f->size = bodyf.size - f->size;
+}
diff --git a/usr.bin/indent/lexi.c b/usr.bin/indent/lexi.c
new file mode 100644
index 0000000..8da9d2c
--- /dev/null
+++ b/usr.bin/indent/lexi.c
@@ -0,0 +1,559 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)lexi.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ * Here we have the token scanner for indent. It scans off one token and puts
+ * it in the global variable "token". It returns a code, indicating the type
+ * of token scanned.
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+#include "indent_codes.h"
+
+#define alphanum 1
+#define opchar 3
+
+struct templ {
+ char *rwd;
+ int rwcode;
+};
+
+struct templ specials[100] =
+{
+ "switch", 1,
+ "case", 2,
+ "break", 0,
+ "struct", 3,
+ "union", 3,
+ "enum", 3,
+ "default", 2,
+ "int", 4,
+ "char", 4,
+ "float", 4,
+ "double", 4,
+ "long", 4,
+ "short", 4,
+ "typdef", 4,
+ "unsigned", 4,
+ "register", 4,
+ "static", 4,
+ "global", 4,
+ "extern", 4,
+ "void", 4,
+ "goto", 0,
+ "return", 0,
+ "if", 5,
+ "while", 5,
+ "for", 5,
+ "else", 6,
+ "do", 6,
+ "sizeof", 7,
+ 0, 0
+};
+
+char chartype[128] =
+{ /* this is used to facilitate the decision of
+ * what type (alphanumeric, operator) each
+ * character is */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 3, 0, 0, 1, 3, 3, 0,
+ 0, 0, 3, 3, 0, 3, 0, 3,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 0, 0, 3, 3, 3, 3,
+ 0, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 0, 0, 0, 3, 1,
+ 0, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 0, 3, 0, 3, 0
+};
+
+
+
+
+int
+lexi()
+{
+ int unary_delim; /* this is set to 1 if the current token
+ *
+ * forces a following operator to be unary */
+ static int last_code; /* the last token type returned */
+ static int l_struct; /* set to 1 if the last token was 'struct' */
+ int code; /* internal code to be returned */
+ char qchar; /* the delimiter character for a string */
+
+ e_token = s_token; /* point to start of place to save token */
+ unary_delim = false;
+ ps.col_1 = ps.last_nl; /* tell world that this token started in
+ * column 1 iff the last thing scanned was nl */
+ ps.last_nl = false;
+
+ while (*buf_ptr == ' ' || *buf_ptr == '\t') { /* get rid of blanks */
+ ps.col_1 = false; /* leading blanks imply token is not in column
+ * 1 */
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ }
+
+ /* Scan an alphanumeric token */
+ if (chartype[*buf_ptr] == alphanum || buf_ptr[0] == '.' && isdigit(buf_ptr[1])) {
+ /*
+ * we have a character or number
+ */
+ register char *j; /* used for searching thru list of
+ *
+ * reserved words */
+ register struct templ *p;
+
+ if (isdigit(*buf_ptr) || buf_ptr[0] == '.' && isdigit(buf_ptr[1])) {
+ int seendot = 0,
+ seenexp = 0;
+ if (*buf_ptr == '0' &&
+ (buf_ptr[1] == 'x' || buf_ptr[1] == 'X')) {
+ *e_token++ = *buf_ptr++;
+ *e_token++ = *buf_ptr++;
+ while (isxdigit(*buf_ptr)) {
+ CHECK_SIZE_TOKEN;
+ *e_token++ = *buf_ptr++;
+ }
+ }
+ else
+ while (1) {
+ if (*buf_ptr == '.')
+ if (seendot)
+ break;
+ else
+ seendot++;
+ CHECK_SIZE_TOKEN;
+ *e_token++ = *buf_ptr++;
+ if (!isdigit(*buf_ptr) && *buf_ptr != '.')
+ if ((*buf_ptr != 'E' && *buf_ptr != 'e') || seenexp)
+ break;
+ else {
+ seenexp++;
+ seendot++;
+ CHECK_SIZE_TOKEN;
+ *e_token++ = *buf_ptr++;
+ if (*buf_ptr == '+' || *buf_ptr == '-')
+ *e_token++ = *buf_ptr++;
+ }
+ }
+ if (*buf_ptr == 'L' || *buf_ptr == 'l')
+ *e_token++ = *buf_ptr++;
+ }
+ else
+ while (chartype[*buf_ptr] == alphanum) { /* copy it over */
+ CHECK_SIZE_TOKEN;
+ *e_token++ = *buf_ptr++;
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+ }
+ *e_token++ = '\0';
+ while (*buf_ptr == ' ' || *buf_ptr == '\t') { /* get rid of blanks */
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ }
+ ps.its_a_keyword = false;
+ ps.sizeof_keyword = false;
+ if (l_struct) { /* if last token was 'struct', then this token
+ * should be treated as a declaration */
+ l_struct = false;
+ last_code = ident;
+ ps.last_u_d = true;
+ return (decl);
+ }
+ ps.last_u_d = false; /* Operator after indentifier is binary */
+ last_code = ident; /* Remember that this is the code we will
+ * return */
+
+ /*
+ * This loop will check if the token is a keyword.
+ */
+ for (p = specials; (j = p->rwd) != 0; p++) {
+ register char *p = s_token; /* point at scanned token */
+ if (*j++ != *p++ || *j++ != *p++)
+ continue; /* This test depends on the fact that
+ * identifiers are always at least 1 character
+ * long (ie. the first two bytes of the
+ * identifier are always meaningful) */
+ if (p[-1] == 0)
+ break; /* If its a one-character identifier */
+ while (*p++ == *j)
+ if (*j++ == 0)
+ goto found_keyword; /* I wish that C had a multi-level
+ * break... */
+ }
+ if (p->rwd) { /* we have a keyword */
+ found_keyword:
+ ps.its_a_keyword = true;
+ ps.last_u_d = true;
+ switch (p->rwcode) {
+ case 1: /* it is a switch */
+ return (swstmt);
+ case 2: /* a case or default */
+ return (casestmt);
+
+ case 3: /* a "struct" */
+ if (ps.p_l_follow)
+ break; /* inside parens: cast */
+ l_struct = true;
+
+ /*
+ * Next time around, we will want to know that we have had a
+ * 'struct'
+ */
+ case 4: /* one of the declaration keywords */
+ if (ps.p_l_follow) {
+ ps.cast_mask |= 1 << ps.p_l_follow;
+ break; /* inside parens: cast */
+ }
+ last_code = decl;
+ return (decl);
+
+ case 5: /* if, while, for */
+ return (sp_paren);
+
+ case 6: /* do, else */
+ return (sp_nparen);
+
+ case 7:
+ ps.sizeof_keyword = true;
+ default: /* all others are treated like any other
+ * identifier */
+ return (ident);
+ } /* end of switch */
+ } /* end of if (found_it) */
+ if (*buf_ptr == '(' && ps.tos <= 1 && ps.ind_level == 0) {
+ register char *tp = buf_ptr;
+ while (tp < buf_end)
+ if (*tp++ == ')' && (*tp == ';' || *tp == ','))
+ goto not_proc;
+ strncpy(ps.procname, token, sizeof ps.procname - 1);
+ ps.in_parameter_declaration = 1;
+ rparen_count = 1;
+ not_proc:;
+ }
+ /*
+ * The following hack attempts to guess whether or not the current
+ * token is in fact a declaration keyword -- one that has been
+ * typedefd
+ */
+ if (((*buf_ptr == '*' && buf_ptr[1] != '=') || isalpha(*buf_ptr) || *buf_ptr == '_')
+ && !ps.p_l_follow
+ && !ps.block_init
+ && (ps.last_token == rparen || ps.last_token == semicolon ||
+ ps.last_token == decl ||
+ ps.last_token == lbrace || ps.last_token == rbrace)) {
+ ps.its_a_keyword = true;
+ ps.last_u_d = true;
+ last_code = decl;
+ return decl;
+ }
+ if (last_code == decl) /* if this is a declared variable, then
+ * following sign is unary */
+ ps.last_u_d = true; /* will make "int a -1" work */
+ last_code = ident;
+ return (ident); /* the ident is not in the list */
+ } /* end of procesing for alpanum character */
+
+ /* Scan a non-alphanumeric token */
+
+ *e_token++ = *buf_ptr; /* if it is only a one-character token, it is
+ * moved here */
+ *e_token = '\0';
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+
+ switch (*token) {
+ case '\n':
+ unary_delim = ps.last_u_d;
+ ps.last_nl = true; /* remember that we just had a newline */
+ code = (had_eof ? 0 : newline);
+
+ /*
+ * if data has been exausted, the newline is a dummy, and we should
+ * return code to stop
+ */
+ break;
+
+ case '\'': /* start of quoted character */
+ case '"': /* start of string */
+ qchar = *token;
+ if (troff) {
+ e_token[-1] = '`';
+ if (qchar == '"')
+ *e_token++ = '`';
+ e_token = chfont(&bodyf, &stringf, e_token);
+ }
+ do { /* copy the string */
+ while (1) { /* move one character or [/<char>]<char> */
+ if (*buf_ptr == '\n') {
+ printf("%d: Unterminated literal\n", line_no);
+ goto stop_lit;
+ }
+ CHECK_SIZE_TOKEN; /* Only have to do this once in this loop,
+ * since CHECK_SIZE guarantees that there
+ * are at least 5 entries left */
+ *e_token = *buf_ptr++;
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+ if (*e_token == BACKSLASH) { /* if escape, copy extra char */
+ if (*buf_ptr == '\n') /* check for escaped newline */
+ ++line_no;
+ if (troff) {
+ *++e_token = BACKSLASH;
+ if (*buf_ptr == BACKSLASH)
+ *++e_token = BACKSLASH;
+ }
+ *++e_token = *buf_ptr++;
+ ++e_token; /* we must increment this again because we
+ * copied two chars */
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+ }
+ else
+ break; /* we copied one character */
+ } /* end of while (1) */
+ } while (*e_token++ != qchar);
+ if (troff) {
+ e_token = chfont(&stringf, &bodyf, e_token - 1);
+ if (qchar == '"')
+ *e_token++ = '\'';
+ }
+stop_lit:
+ code = ident;
+ break;
+
+ case ('('):
+ case ('['):
+ unary_delim = true;
+ code = lparen;
+ break;
+
+ case (')'):
+ case (']'):
+ code = rparen;
+ break;
+
+ case '#':
+ unary_delim = ps.last_u_d;
+ code = preesc;
+ break;
+
+ case '?':
+ unary_delim = true;
+ code = question;
+ break;
+
+ case (':'):
+ code = colon;
+ unary_delim = true;
+ break;
+
+ case (';'):
+ unary_delim = true;
+ code = semicolon;
+ break;
+
+ case ('{'):
+ unary_delim = true;
+
+ /*
+ * if (ps.in_or_st) ps.block_init = 1;
+ */
+ /* ? code = ps.block_init ? lparen : lbrace; */
+ code = lbrace;
+ break;
+
+ case ('}'):
+ unary_delim = true;
+ /* ? code = ps.block_init ? rparen : rbrace; */
+ code = rbrace;
+ break;
+
+ case 014: /* a form feed */
+ unary_delim = ps.last_u_d;
+ ps.last_nl = true; /* remember this so we can set 'ps.col_1'
+ * right */
+ code = form_feed;
+ break;
+
+ case (','):
+ unary_delim = true;
+ code = comma;
+ break;
+
+ case '.':
+ unary_delim = false;
+ code = period;
+ break;
+
+ case '-':
+ case '+': /* check for -, +, --, ++ */
+ code = (ps.last_u_d ? unary_op : binary_op);
+ unary_delim = true;
+
+ if (*buf_ptr == token[0]) {
+ /* check for doubled character */
+ *e_token++ = *buf_ptr++;
+ /* buffer overflow will be checked at end of loop */
+ if (last_code == ident || last_code == rparen) {
+ code = (ps.last_u_d ? unary_op : postop);
+ /* check for following ++ or -- */
+ unary_delim = false;
+ }
+ }
+ else if (*buf_ptr == '=')
+ /* check for operator += */
+ *e_token++ = *buf_ptr++;
+ else if (*buf_ptr == '>') {
+ /* check for operator -> */
+ *e_token++ = *buf_ptr++;
+ if (!pointer_as_binop) {
+ unary_delim = false;
+ code = unary_op;
+ ps.want_blank = false;
+ }
+ }
+ break; /* buffer overflow will be checked at end of
+ * switch */
+
+ case '=':
+ if (ps.in_or_st)
+ ps.block_init = 1;
+#ifdef undef
+ if (chartype[*buf_ptr] == opchar) { /* we have two char assignment */
+ e_token[-1] = *buf_ptr++;
+ if ((e_token[-1] == '<' || e_token[-1] == '>') && e_token[-1] == *buf_ptr)
+ *e_token++ = *buf_ptr++;
+ *e_token++ = '='; /* Flip =+ to += */
+ *e_token = 0;
+ }
+#else
+ if (*buf_ptr == '=') {/* == */
+ *e_token++ = '='; /* Flip =+ to += */
+ buf_ptr++;
+ *e_token = 0;
+ }
+#endif
+ code = binary_op;
+ unary_delim = true;
+ break;
+ /* can drop thru!!! */
+
+ case '>':
+ case '<':
+ case '!': /* ops like <, <<, <=, !=, etc */
+ if (*buf_ptr == '>' || *buf_ptr == '<' || *buf_ptr == '=') {
+ *e_token++ = *buf_ptr;
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ }
+ if (*buf_ptr == '=')
+ *e_token++ = *buf_ptr++;
+ code = (ps.last_u_d ? unary_op : binary_op);
+ unary_delim = true;
+ break;
+
+ default:
+ if (token[0] == '/' && *buf_ptr == '*') {
+ /* it is start of comment */
+ *e_token++ = '*';
+
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+
+ code = comment;
+ unary_delim = ps.last_u_d;
+ break;
+ }
+ while (*(e_token - 1) == *buf_ptr || *buf_ptr == '=') {
+ /*
+ * handle ||, &&, etc, and also things as in int *****i
+ */
+ *e_token++ = *buf_ptr;
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ }
+ code = (ps.last_u_d ? unary_op : binary_op);
+ unary_delim = true;
+
+
+ } /* end of switch */
+ if (code != newline) {
+ l_struct = false;
+ last_code = code;
+ }
+ if (buf_ptr >= buf_end) /* check for input buffer empty */
+ fill_buffer();
+ ps.last_u_d = unary_delim;
+ *e_token = '\0'; /* null terminate the token */
+ return (code);
+}
+
+/*
+ * Add the given keyword to the keyword table, using val as the keyword type
+ */
+addkey(key, val)
+ char *key;
+{
+ register struct templ *p = specials;
+ while (p->rwd)
+ if (p->rwd[0] == key[0] && strcmp(p->rwd, key) == 0)
+ return;
+ else
+ p++;
+ if (p >= specials + sizeof specials / sizeof specials[0])
+ return; /* For now, table overflows are silently
+ * ignored */
+ p->rwd = key;
+ p->rwcode = val;
+ p[1].rwd = 0;
+ p[1].rwcode = 0;
+ return;
+}
diff --git a/usr.bin/indent/parse.c b/usr.bin/indent/parse.c
new file mode 100644
index 0000000..fef22cf
--- /dev/null
+++ b/usr.bin/indent/parse.c
@@ -0,0 +1,324 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)parse.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <stdio.h>
+#include "indent_globs.h"
+#include "indent_codes.h"
+
+parse(tk)
+ int tk; /* the code for the construct scanned */
+{
+ int i;
+
+#ifdef debug
+ printf("%2d - %s\n", tk, token);
+#endif
+
+ while (ps.p_stack[ps.tos] == ifhead && tk != elselit) {
+ /* true if we have an if without an else */
+ ps.p_stack[ps.tos] = stmt; /* apply the if(..) stmt ::= stmt
+ * reduction */
+ reduce(); /* see if this allows any reduction */
+ }
+
+
+ switch (tk) { /* go on and figure out what to do with the
+ * input */
+
+ case decl: /* scanned a declaration word */
+ ps.search_brace = btype_2;
+ /* indicate that following brace should be on same line */
+ if (ps.p_stack[ps.tos] != decl) { /* only put one declaration
+ * onto stack */
+ break_comma = true; /* while in declaration, newline should be
+ * forced after comma */
+ ps.p_stack[++ps.tos] = decl;
+ ps.il[ps.tos] = ps.i_l_follow;
+
+ if (ps.ljust_decl) {/* only do if we want left justified
+ * declarations */
+ ps.ind_level = 0;
+ for (i = ps.tos - 1; i > 0; --i)
+ if (ps.p_stack[i] == decl)
+ ++ps.ind_level; /* indentation is number of
+ * declaration levels deep we are */
+ ps.i_l_follow = ps.ind_level;
+ }
+ }
+ break;
+
+ case ifstmt: /* scanned if (...) */
+ if (ps.p_stack[ps.tos] == elsehead && ps.else_if) /* "else if ..." */
+ ps.i_l_follow = ps.il[ps.tos];
+ case dolit: /* 'do' */
+ case forstmt: /* for (...) */
+ ps.p_stack[++ps.tos] = tk;
+ ps.il[ps.tos] = ps.ind_level = ps.i_l_follow;
+ ++ps.i_l_follow; /* subsequent statements should be indented 1 */
+ ps.search_brace = btype_2;
+ break;
+
+ case lbrace: /* scanned { */
+ break_comma = false; /* don't break comma in an initial list */
+ if (ps.p_stack[ps.tos] == stmt || ps.p_stack[ps.tos] == decl
+ || ps.p_stack[ps.tos] == stmtl)
+ ++ps.i_l_follow; /* it is a random, isolated stmt group or a
+ * declaration */
+ else {
+ if (s_code == e_code) {
+ /*
+ * only do this if there is nothing on the line
+ */
+ --ps.ind_level;
+ /*
+ * it is a group as part of a while, for, etc.
+ */
+ if (ps.p_stack[ps.tos] == swstmt && ps.case_indent >= 1)
+ --ps.ind_level;
+ /*
+ * for a switch, brace should be two levels out from the code
+ */
+ }
+ }
+
+ ps.p_stack[++ps.tos] = lbrace;
+ ps.il[ps.tos] = ps.ind_level;
+ ps.p_stack[++ps.tos] = stmt;
+ /* allow null stmt between braces */
+ ps.il[ps.tos] = ps.i_l_follow;
+ break;
+
+ case whilestmt: /* scanned while (...) */
+ if (ps.p_stack[ps.tos] == dohead) {
+ /* it is matched with do stmt */
+ ps.ind_level = ps.i_l_follow = ps.il[ps.tos];
+ ps.p_stack[++ps.tos] = whilestmt;
+ ps.il[ps.tos] = ps.ind_level = ps.i_l_follow;
+ }
+ else { /* it is a while loop */
+ ps.p_stack[++ps.tos] = whilestmt;
+ ps.il[ps.tos] = ps.i_l_follow;
+ ++ps.i_l_follow;
+ ps.search_brace = btype_2;
+ }
+
+ break;
+
+ case elselit: /* scanned an else */
+
+ if (ps.p_stack[ps.tos] != ifhead)
+ diag(1, "Unmatched 'else'");
+ else {
+ ps.ind_level = ps.il[ps.tos]; /* indentation for else should
+ * be same as for if */
+ ps.i_l_follow = ps.ind_level + 1; /* everything following should
+ * be in 1 level */
+ ps.p_stack[ps.tos] = elsehead;
+ /* remember if with else */
+ ps.search_brace = btype_2 | ps.else_if;
+ }
+ break;
+
+ case rbrace: /* scanned a } */
+ /* stack should have <lbrace> <stmt> or <lbrace> <stmtl> */
+ if (ps.p_stack[ps.tos - 1] == lbrace) {
+ ps.ind_level = ps.i_l_follow = ps.il[--ps.tos];
+ ps.p_stack[ps.tos] = stmt;
+ }
+ else
+ diag(1, "Stmt nesting error.");
+ break;
+
+ case swstmt: /* had switch (...) */
+ ps.p_stack[++ps.tos] = swstmt;
+ ps.cstk[ps.tos] = case_ind;
+ /* save current case indent level */
+ ps.il[ps.tos] = ps.i_l_follow;
+ case_ind = ps.i_l_follow + ps.case_indent; /* cases should be one
+ * level down from
+ * switch */
+ ps.i_l_follow += ps.case_indent + 1; /* statements should be two
+ * levels in */
+ ps.search_brace = btype_2;
+ break;
+
+ case semicolon: /* this indicates a simple stmt */
+ break_comma = false; /* turn off flag to break after commas in a
+ * declaration */
+ ps.p_stack[++ps.tos] = stmt;
+ ps.il[ps.tos] = ps.ind_level;
+ break;
+
+ default: /* this is an error */
+ diag(1, "Unknown code to parser");
+ return;
+
+
+ } /* end of switch */
+
+ reduce(); /* see if any reduction can be done */
+
+#ifdef debug
+ for (i = 1; i <= ps.tos; ++i)
+ printf("(%d %d)", ps.p_stack[i], ps.il[i]);
+ printf("\n");
+#endif
+
+ return;
+}
+
+/*
+ * NAME: reduce
+ *
+ * FUNCTION: Implements the reduce part of the parsing algorithm
+ *
+ * ALGORITHM: The following reductions are done. Reductions are repeated
+ * until no more are possible.
+ *
+ * Old TOS New TOS
+ * <stmt> <stmt> <stmtl>
+ * <stmtl> <stmt> <stmtl>
+ * do <stmt> "dostmt"
+ * if <stmt> "ifstmt"
+ * switch <stmt> <stmt>
+ * decl <stmt> <stmt>
+ * "ifelse" <stmt> <stmt>
+ * for <stmt> <stmt>
+ * while <stmt> <stmt>
+ * "dostmt" while <stmt>
+ *
+ * On each reduction, ps.i_l_follow (the indentation for the following line)
+ * is set to the indentation level associated with the old TOS.
+ *
+ * PARAMETERS: None
+ *
+ * RETURNS: Nothing
+ *
+ * GLOBALS: ps.cstk ps.i_l_follow = ps.il ps.p_stack = ps.tos =
+ *
+ * CALLS: None
+ *
+ * CALLED BY: parse
+ *
+ * HISTORY: initial coding November 1976 D A Willcox of CAC
+ *
+ */
+/*----------------------------------------------*\
+| REDUCTION PHASE |
+\*----------------------------------------------*/
+reduce()
+{
+
+ register int i;
+
+ for (;;) { /* keep looping until there is nothing left to
+ * reduce */
+
+ switch (ps.p_stack[ps.tos]) {
+
+ case stmt:
+ switch (ps.p_stack[ps.tos - 1]) {
+
+ case stmt:
+ case stmtl:
+ /* stmtl stmt or stmt stmt */
+ ps.p_stack[--ps.tos] = stmtl;
+ break;
+
+ case dolit: /* <do> <stmt> */
+ ps.p_stack[--ps.tos] = dohead;
+ ps.i_l_follow = ps.il[ps.tos];
+ break;
+
+ case ifstmt:
+ /* <if> <stmt> */
+ ps.p_stack[--ps.tos] = ifhead;
+ for (i = ps.tos - 1;
+ (
+ ps.p_stack[i] != stmt
+ &&
+ ps.p_stack[i] != stmtl
+ &&
+ ps.p_stack[i] != lbrace
+ );
+ --i);
+ ps.i_l_follow = ps.il[i];
+ /*
+ * for the time being, we will assume that there is no else on
+ * this if, and set the indentation level accordingly. If an
+ * else is scanned, it will be fixed up later
+ */
+ break;
+
+ case swstmt:
+ /* <switch> <stmt> */
+ case_ind = ps.cstk[ps.tos - 1];
+
+ case decl: /* finish of a declaration */
+ case elsehead:
+ /* <<if> <stmt> else> <stmt> */
+ case forstmt:
+ /* <for> <stmt> */
+ case whilestmt:
+ /* <while> <stmt> */
+ ps.p_stack[--ps.tos] = stmt;
+ ps.i_l_follow = ps.il[ps.tos];
+ break;
+
+ default: /* <anything else> <stmt> */
+ return;
+
+ } /* end of section for <stmt> on top of stack */
+ break;
+
+ case whilestmt: /* while (...) on top */
+ if (ps.p_stack[ps.tos - 1] == dohead) {
+ /* it is termination of a do while */
+ ps.p_stack[--ps.tos] = stmt;
+ break;
+ }
+ else
+ return;
+
+ default: /* anything else on top */
+ return;
+
+ }
+ }
+}
diff --git a/usr.bin/indent/pr_comment.c b/usr.bin/indent/pr_comment.c
new file mode 100644
index 0000000..2d4bc90
--- /dev/null
+++ b/usr.bin/indent/pr_comment.c
@@ -0,0 +1,418 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ * The Regents of the University of California. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)pr_comment.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "indent_globs.h"
+
+/*
+ * NAME:
+ * pr_comment
+ *
+ * FUNCTION:
+ * This routine takes care of scanning and printing comments.
+ *
+ * ALGORITHM:
+ * 1) Decide where the comment should be aligned, and if lines should
+ * be broken.
+ * 2) If lines should not be broken and filled, just copy up to end of
+ * comment.
+ * 3) If lines should be filled, then scan thru input_buffer copying
+ * characters to com_buf. Remember where the last blank, tab, or
+ * newline was. When line is filled, print up to last blank and
+ * continue copying.
+ *
+ * HISTORY:
+ * November 1976 D A Willcox of CAC Initial coding
+ * 12/6/76 D A Willcox of CAC Modification to handle
+ * UNIX-style comments
+ *
+ */
+
+/*
+ * this routine processes comments. It makes an attempt to keep comments from
+ * going over the max line length. If a line is too long, it moves everything
+ * from the last blank to the next comment line. Blanks and tabs from the
+ * beginning of the input line are removed
+ */
+
+
+pr_comment()
+{
+ int now_col; /* column we are in now */
+ int adj_max_col; /* Adjusted max_col for when we decide to
+ * spill comments over the right margin */
+ char *last_bl; /* points to the last blank in the output
+ * buffer */
+ char *t_ptr; /* used for moving string */
+ int unix_comment; /* tri-state variable used to decide if it is
+ * a unix-style comment. 0 means only blanks
+ * since /*, 1 means regular style comment, 2
+ * means unix style comment */
+ int break_delim = comment_delimiter_on_blankline;
+ int l_just_saw_decl = ps.just_saw_decl;
+ /*
+ * int ps.last_nl = 0; /* true iff the last significant thing
+ * weve seen is a newline
+ */
+ int one_liner = 1; /* true iff this comment is a one-liner */
+ adj_max_col = max_col;
+ ps.just_saw_decl = 0;
+ last_bl = 0; /* no blanks found so far */
+ ps.box_com = false; /* at first, assume that we are not in
+ * a boxed comment or some other
+ * comment that should not be touched */
+ ++ps.out_coms; /* keep track of number of comments */
+ unix_comment = 1; /* set flag to let us figure out if there is a
+ * unix-style comment ** DISABLED: use 0 to
+ * reenable this hack! */
+
+ /* Figure where to align and how to treat the comment */
+
+ if (ps.col_1 && !format_col1_comments) { /* if comment starts in column
+ * 1 it should not be touched */
+ ps.box_com = true;
+ ps.com_col = 1;
+ }
+ else {
+ if (*buf_ptr == '-' || *buf_ptr == '*') {
+ ps.box_com = true; /* a comment with a '-' or '*' immediately
+ * after the /* is assumed to be a boxed
+ * comment */
+ break_delim = 0;
+ }
+ if ( /* ps.bl_line && */ (s_lab == e_lab) && (s_code == e_code)) {
+ /* klg: check only if this line is blank */
+ /*
+ * If this (*and previous lines are*) blank, dont put comment way
+ * out at left
+ */
+ ps.com_col = (ps.ind_level - ps.unindent_displace) * ps.ind_size + 1;
+ adj_max_col = block_comment_max_col;
+ if (ps.com_col <= 1)
+ ps.com_col = 1 + !format_col1_comments;
+ }
+ else {
+ register target_col;
+ break_delim = 0;
+ if (s_code != e_code)
+ target_col = count_spaces(compute_code_target(), s_code);
+ else {
+ target_col = 1;
+ if (s_lab != e_lab)
+ target_col = count_spaces(compute_label_target(), s_lab);
+ }
+ ps.com_col = ps.decl_on_line || ps.ind_level == 0 ? ps.decl_com_ind : ps.com_ind;
+ if (ps.com_col < target_col)
+ ps.com_col = ((target_col + 7) & ~7) + 1;
+ if (ps.com_col + 24 > adj_max_col)
+ adj_max_col = ps.com_col + 24;
+ }
+ }
+ if (ps.box_com) {
+ buf_ptr[-2] = 0;
+ ps.n_comment_delta = 1 - count_spaces(1, in_buffer);
+ buf_ptr[-2] = '/';
+ }
+ else {
+ ps.n_comment_delta = 0;
+ while (*buf_ptr == ' ' || *buf_ptr == '\t')
+ buf_ptr++;
+ }
+ ps.comment_delta = 0;
+ *e_com++ = '/'; /* put '/*' into buffer */
+ *e_com++ = '*';
+ if (*buf_ptr != ' ' && !ps.box_com)
+ *e_com++ = ' ';
+
+ *e_com = '\0';
+ if (troff) {
+ now_col = 1;
+ adj_max_col = 80;
+ }
+ else
+ now_col = count_spaces(ps.com_col, s_com); /* figure what column we
+ * would be in if we
+ * printed the comment
+ * now */
+
+ /* Start to copy the comment */
+
+ while (1) { /* this loop will go until the comment is
+ * copied */
+ if (*buf_ptr > 040 && *buf_ptr != '*')
+ ps.last_nl = 0;
+ CHECK_SIZE_COM;
+ switch (*buf_ptr) { /* this checks for various spcl cases */
+ case 014: /* check for a form feed */
+ if (!ps.box_com) { /* in a text comment, break the line here */
+ ps.use_ff = true;
+ /* fix so dump_line uses a form feed */
+ dump_line();
+ last_bl = 0;
+ *e_com++ = ' ';
+ *e_com++ = '*';
+ *e_com++ = ' ';
+ while (*++buf_ptr == ' ' || *buf_ptr == '\t');
+ }
+ else {
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ *e_com++ = 014;
+ }
+ break;
+
+ case '\n':
+ if (had_eof) { /* check for unexpected eof */
+ printf("Unterminated comment\n");
+ *e_com = '\0';
+ dump_line();
+ return;
+ }
+ one_liner = 0;
+ if (ps.box_com || ps.last_nl) { /* if this is a boxed comment,
+ * we dont ignore the newline */
+ if (s_com == e_com) {
+ *e_com++ = ' ';
+ *e_com++ = ' ';
+ }
+ *e_com = '\0';
+ if (!ps.box_com && e_com - s_com > 3) {
+ if (break_delim == 1 && s_com[0] == '/'
+ && s_com[1] == '*' && s_com[2] == ' ') {
+ char *t = e_com;
+ break_delim = 2;
+ e_com = s_com + 2;
+ *e_com = 0;
+ if (blanklines_before_blockcomments)
+ prefix_blankline_requested = 1;
+ dump_line();
+ e_com = t;
+ s_com[0] = s_com[1] = s_com[2] = ' ';
+ }
+ dump_line();
+ CHECK_SIZE_COM;
+ *e_com++ = ' ';
+ *e_com++ = ' ';
+ }
+ dump_line();
+ now_col = ps.com_col;
+ }
+ else {
+ ps.last_nl = 1;
+ if (unix_comment != 1) { /* we not are in unix_style
+ * comment */
+ if (unix_comment == 0 && s_code == e_code) {
+ /*
+ * if it is a UNIX-style comment, ignore the
+ * requirement that previous line be blank for
+ * unindention
+ */
+ ps.com_col = (ps.ind_level - ps.unindent_displace) * ps.ind_size + 1;
+ if (ps.com_col <= 1)
+ ps.com_col = 2;
+ }
+ unix_comment = 2; /* permanently remember that we are in
+ * this type of comment */
+ dump_line();
+ ++line_no;
+ now_col = ps.com_col;
+ *e_com++ = ' ';
+ /*
+ * fix so that the star at the start of the line will line
+ * up
+ */
+ do /* flush leading white space */
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ while (*buf_ptr == ' ' || *buf_ptr == '\t');
+ break;
+ }
+ if (*(e_com - 1) == ' ' || *(e_com - 1) == '\t')
+ last_bl = e_com - 1;
+ /*
+ * if there was a space at the end of the last line, remember
+ * where it was
+ */
+ else { /* otherwise, insert one */
+ last_bl = e_com;
+ CHECK_SIZE_COM;
+ *e_com++ = ' ';
+ ++now_col;
+ }
+ }
+ ++line_no; /* keep track of input line number */
+ if (!ps.box_com) {
+ int nstar = 1;
+ do { /* flush any blanks and/or tabs at start of
+ * next line */
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ if (*buf_ptr == '*' && --nstar >= 0) {
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+ if (*buf_ptr == '/')
+ goto end_of_comment;
+ }
+ } while (*buf_ptr == ' ' || *buf_ptr == '\t');
+ }
+ else if (++buf_ptr >= buf_end)
+ fill_buffer();
+ break; /* end of case for newline */
+
+ case '*': /* must check for possibility of being at end
+ * of comment */
+ if (++buf_ptr >= buf_end) /* get to next char after * */
+ fill_buffer();
+
+ if (unix_comment == 0) /* set flag to show we are not in
+ * unix-style comment */
+ unix_comment = 1;
+
+ if (*buf_ptr == '/') { /* it is the end!!! */
+ end_of_comment:
+ if (++buf_ptr >= buf_end)
+ fill_buffer();
+
+ if (*(e_com - 1) != ' ' && !ps.box_com) { /* insure blank before
+ * end */
+ *e_com++ = ' ';
+ ++now_col;
+ }
+ if (break_delim == 1 && !one_liner && s_com[0] == '/'
+ && s_com[1] == '*' && s_com[2] == ' ') {
+ char *t = e_com;
+ break_delim = 2;
+ e_com = s_com + 2;
+ *e_com = 0;
+ if (blanklines_before_blockcomments)
+ prefix_blankline_requested = 1;
+ dump_line();
+ e_com = t;
+ s_com[0] = s_com[1] = s_com[2] = ' ';
+ }
+ if (break_delim == 2 && e_com > s_com + 3
+ /* now_col > adj_max_col - 2 && !ps.box_com */ ) {
+ *e_com = '\0';
+ dump_line();
+ now_col = ps.com_col;
+ }
+ CHECK_SIZE_COM;
+ *e_com++ = '*';
+ *e_com++ = '/';
+ *e_com = '\0';
+ ps.just_saw_decl = l_just_saw_decl;
+ return;
+ }
+ else { /* handle isolated '*' */
+ *e_com++ = '*';
+ ++now_col;
+ }
+ break;
+ default: /* we have a random char */
+ if (unix_comment == 0 && *buf_ptr != ' ' && *buf_ptr != '\t')
+ unix_comment = 1; /* we are not in unix-style comment */
+
+ *e_com = *buf_ptr++;
+ if (buf_ptr >= buf_end)
+ fill_buffer();
+
+ if (*e_com == '\t') /* keep track of column */
+ now_col = ((now_col - 1) & tabmask) + tabsize + 1;
+ else if (*e_com == '\b') /* this is a backspace */
+ --now_col;
+ else
+ ++now_col;
+
+ if (*e_com == ' ' || *e_com == '\t')
+ last_bl = e_com;
+ /* remember we saw a blank */
+
+ ++e_com;
+ if (now_col > adj_max_col && !ps.box_com && unix_comment == 1 && e_com[-1] > ' ') {
+ /*
+ * the comment is too long, it must be broken up
+ */
+ if (break_delim == 1 && s_com[0] == '/'
+ && s_com[1] == '*' && s_com[2] == ' ') {
+ char *t = e_com;
+ break_delim = 2;
+ e_com = s_com + 2;
+ *e_com = 0;
+ if (blanklines_before_blockcomments)
+ prefix_blankline_requested = 1;
+ dump_line();
+ e_com = t;
+ s_com[0] = s_com[1] = s_com[2] = ' ';
+ }
+ if (last_bl == 0) { /* we have seen no blanks */
+ last_bl = e_com; /* fake it */
+ *e_com++ = ' ';
+ }
+ *e_com = '\0'; /* print what we have */
+ *last_bl = '\0';
+ while (last_bl > s_com && last_bl[-1] < 040)
+ *--last_bl = 0;
+ e_com = last_bl;
+ dump_line();
+
+ *e_com++ = ' '; /* add blanks for continuation */
+ *e_com++ = ' ';
+ *e_com++ = ' ';
+
+ t_ptr = last_bl + 1;
+ last_bl = 0;
+ if (t_ptr >= e_com) {
+ while (*t_ptr == ' ' || *t_ptr == '\t')
+ t_ptr++;
+ while (*t_ptr != '\0') { /* move unprinted part of
+ * comment down in buffer */
+ if (*t_ptr == ' ' || *t_ptr == '\t')
+ last_bl = e_com;
+ *e_com++ = *t_ptr++;
+ }
+ }
+ *e_com = '\0';
+ now_col = count_spaces(ps.com_col, s_com); /* recompute current
+ * position */
+ }
+ break;
+ }
+ }
+}
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