diff options
Diffstat (limited to 'release/picobsd/tinyware/ash/histedit.c')
-rw-r--r-- | release/picobsd/tinyware/ash/histedit.c | 501 |
1 files changed, 0 insertions, 501 deletions
diff --git a/release/picobsd/tinyware/ash/histedit.c b/release/picobsd/tinyware/ash/histedit.c deleted file mode 100644 index 73883c6..0000000 --- a/release/picobsd/tinyware/ash/histedit.c +++ /dev/null @@ -1,501 +0,0 @@ -/* $NetBSD: histedit.c,v 1.14 1997/07/04 21:02:02 christos Exp $ */ - -/*- - * Copyright (c) 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Kenneth Almquist. - * - * 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. - */ - -#include <sys/cdefs.h> -#ifndef lint -#if 0 -static char sccsid[] = "@(#)histedit.c 8.2 (Berkeley) 5/4/95"; -#else -__RCSID("$NetBSD: histedit.c,v 1.14 1997/07/04 21:02:02 christos Exp $"); -#endif -#endif /* not lint */ - -#include <sys/param.h> -#include <paths.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -/* - * Editline and history functions (and glue). - */ -#include "shell.h" -#include "parser.h" -#include "var.h" -#include "options.h" -#include "main.h" -#include "output.h" -#include "mystring.h" -#ifndef SMALL -#include "myhistedit.h" -#include "error.h" -#include "eval.h" -#include "memalloc.h" - -#define MAXHISTLOOPS 4 /* max recursions through fc */ -#define DEFEDITOR "ed" /* default editor *should* be $EDITOR */ - -History *hist; /* history cookie */ -EditLine *el; /* editline cookie */ -int displayhist; -static FILE *el_in, *el_out; - -STATIC char *fc_replace __P((const char *, char *, char *)); - -/* - * Set history and editing status. Called whenever the status may - * have changed (figures out what to do). - */ -void -histedit() -{ - -#define editing (Eflag || Vflag) - - if (iflag) { - if (!hist) { - /* - * turn history on - */ - INTOFF; - hist = history_init(); - INTON; - - if (hist != NULL) - sethistsize(histsizeval()); - else - out2str("sh: can't initialize history\n"); - } - if (editing && !el && isatty(0)) { /* && isatty(2) ??? */ - /* - * turn editing on - */ - INTOFF; - if (el_in == NULL) - el_in = fdopen(0, "r"); - if (el_out == NULL) - el_out = fdopen(2, "w"); - if (el_in == NULL || el_out == NULL) - goto bad; - el = el_init(arg0, el_in, el_out); - if (el != NULL) { - if (hist) - el_set(el, EL_HIST, history, hist); - el_set(el, EL_PROMPT, getprompt); - } else { -bad: - out2str("sh: can't initialize editing\n"); - } - INTON; - } else if (!editing && el) { - INTOFF; - el_end(el); - el = NULL; - INTON; - } - if (el) { - if (Vflag) - el_set(el, EL_EDITOR, "vi"); - else if (Eflag) - el_set(el, EL_EDITOR, "emacs"); - } - } else { - INTOFF; - if (el) { /* no editing if not interactive */ - el_end(el); - el = NULL; - } - if (hist) { - history_end(hist); - hist = NULL; - } - INTON; - } -} - - -void -sethistsize(hs) - const char *hs; -{ - int histsize; - - if (hist != NULL) { - if (hs == NULL || *hs == '\0' || - (histsize = atoi(hs)) < 0) - histsize = 100; - history(hist, H_EVENT, histsize); - } -} - -void -setterm(term) - const char *term; -{ - if (el != NULL && term != NULL) - if (el_set(el, EL_TERMINAL, term) != 0) { - outfmt(out2, "sh: Can't set terminal type %s\n", term); - outfmt(out2, "sh: Using dumb terminal settings.\n"); - } -} - -/* - * This command is provided since POSIX decided to standardize - * the Korn shell fc command. Oh well... - */ -int -histcmd(argc, argv) - int argc; - char **argv; -{ - extern char *optarg; - extern int optind, optopt, optreset; - int ch; - char *editor = NULL; - const HistEvent *he; - int lflg = 0, nflg = 0, rflg = 0, sflg = 0; - int i; - char *firststr, *laststr; - int first, last, direction; - char *pat = NULL, *repl; /* ksh "fc old=new" crap */ - static int active = 0; - struct jmploc jmploc; - struct jmploc *volatile savehandler; - char editfile[MAXPATHLEN + 1]; - FILE *efp; -#ifdef __GNUC__ - /* Avoid longjmp clobbering */ - (void) &editor; - (void) &lflg; - (void) &nflg; - (void) &rflg; - (void) &sflg; - (void) &firststr; - (void) &laststr; - (void) &pat; - (void) &repl; - (void) &efp; - (void) &argc; - (void) &argv; -#endif - - if (hist == NULL) - error("history not active"); - - if (argc == 1) - error("missing history argument"); - - optreset = 1; optind = 1; /* initialize getopt */ - while (not_fcnumber(argv[optind]) && - (ch = getopt(argc, argv, ":e:lnrs")) != EOF) - switch ((char)ch) { - case 'e': - editor = optarg; - break; - case 'l': - lflg = 1; - break; - case 'n': - nflg = 1; - break; - case 'r': - rflg = 1; - break; - case 's': - sflg = 1; - break; - case ':': - error("option -%c expects argument", optopt); - case '?': - default: - error("unknown option: -%c", optopt); - } - argc -= optind, argv += optind; - - /* - * If executing... - */ - if (lflg == 0 || editor || sflg) { - lflg = 0; /* ignore */ - editfile[0] = '\0'; - /* - * Catch interrupts to reset active counter and - * cleanup temp files. - */ - if (setjmp(jmploc.loc)) { - active = 0; - if (*editfile) - unlink(editfile); - handler = savehandler; - longjmp(handler->loc, 1); - } - savehandler = handler; - handler = &jmploc; - if (++active > MAXHISTLOOPS) { - active = 0; - displayhist = 0; - error("called recursively too many times"); - } - /* - * Set editor. - */ - if (sflg == 0) { - if (editor == NULL && - (editor = bltinlookup("FCEDIT", 1)) == NULL && - (editor = bltinlookup("EDITOR", 1)) == NULL) - editor = DEFEDITOR; - if (editor[0] == '-' && editor[1] == '\0') { - sflg = 1; /* no edit */ - editor = NULL; - } - } - } - - /* - * If executing, parse [old=new] now - */ - if (lflg == 0 && argc > 0 && - ((repl = strchr(argv[0], '=')) != NULL)) { - pat = argv[0]; - *repl++ = '\0'; - argc--, argv++; - } - /* - * determine [first] and [last] - */ - switch (argc) { - case 0: - firststr = lflg ? "-16" : "-1"; - laststr = "-1"; - break; - case 1: - firststr = argv[0]; - laststr = lflg ? "-1" : argv[0]; - break; - case 2: - firststr = argv[0]; - laststr = argv[1]; - break; - default: - error("too many args"); - } - /* - * Turn into event numbers. - */ - first = str_to_event(firststr, 0); - last = str_to_event(laststr, 1); - - if (rflg) { - i = last; - last = first; - first = i; - } - /* - * XXX - this should not depend on the event numbers - * always increasing. Add sequence numbers or offset - * to the history element in next (diskbased) release. - */ - direction = first < last ? H_PREV : H_NEXT; - - /* - * If editing, grab a temp file. - */ - if (editor) { - int fd; - INTOFF; /* easier */ - sprintf(editfile, "%s/_shXXXXXX", _PATH_TMP); - if ((fd = mkstemp(editfile)) < 0) - error("can't create temporary file %s", editfile); - if ((efp = fdopen(fd, "w")) == NULL) { - close(fd); - error("can't allocate stdio buffer for temp"); - } - } - - /* - * Loop through selected history events. If listing or executing, - * do it now. Otherwise, put into temp file and call the editor - * after. - * - * The history interface needs rethinking, as the following - * convolutions will demonstrate. - */ - history(hist, H_FIRST); - he = history(hist, H_NEXT_EVENT, first); - for (;he != NULL; he = history(hist, direction)) { - if (lflg) { - if (!nflg) - out1fmt("%5d ", he->num); - out1str(he->str); - } else { - char *s = pat ? - fc_replace(he->str, pat, repl) : (char *)he->str; - - if (sflg) { - if (displayhist) { - out2str(s); - } - evalstring(s); - if (displayhist && hist) { - /* - * XXX what about recursive and - * relative histnums. - */ - history(hist, H_ENTER, s); - } - } else - fputs(s, efp); - } - /* - * At end? (if we were to loose last, we'd sure be - * messed up). - */ - if (he->num == last) - break; - } - if (editor) { - char *editcmd; - - fclose(efp); - editcmd = stalloc(strlen(editor) + strlen(editfile) + 2); - sprintf(editcmd, "%s %s", editor, editfile); - evalstring(editcmd); /* XXX - should use no JC command */ - INTON; - readcmdfile(editfile); /* XXX - should read back - quick tst */ - unlink(editfile); - } - - if (lflg == 0 && active > 0) - --active; - if (displayhist) - displayhist = 0; - return 0; -} - -STATIC char * -fc_replace(s, p, r) - const char *s; - char *p, *r; -{ - char *dest; - int plen = strlen(p); - - STARTSTACKSTR(dest); - while (*s) { - if (*s == *p && strncmp(s, p, plen) == 0) { - while (*r) - STPUTC(*r++, dest); - s += plen; - *p = '\0'; /* so no more matches */ - } else - STPUTC(*s++, dest); - } - STACKSTRNUL(dest); - dest = grabstackstr(dest); - - return (dest); -} - -int -not_fcnumber(s) - char *s; -{ - if (s == NULL) - return 0; - if (*s == '-') - s++; - return (!is_number(s)); -} - -int -str_to_event(str, last) - char *str; - int last; -{ - const HistEvent *he; - char *s = str; - int relative = 0; - int i; - - he = history(hist, H_FIRST); - switch (*s) { - case '-': - relative = 1; - /*FALLTHROUGH*/ - case '+': - s++; - } - if (is_number(s)) { - i = atoi(s); - if (relative) { - while (he != NULL && i--) { - he = history(hist, H_NEXT); - } - if (he == NULL) - he = history(hist, H_LAST); - } else { - he = history(hist, H_NEXT_EVENT, i); - if (he == NULL) { - /* - * the notion of first and last is - * backwards to that of the history package - */ - he = history(hist, last ? H_FIRST : H_LAST); - } - } - if (he == NULL) - error("history number %s not found (internal error)", - str); - } else { - /* - * pattern - */ - he = history(hist, H_PREV_STR, str); - if (he == NULL) - error("history pattern not found: %s", str); - } - return (he->num); -} -#else -int -histcmd(argc, argv) - int argc; - char **argv; -{ - error("not compiled with history support"); -} -#endif |