14b88c807SRodney W. Grimes /*- 24b88c807SRodney W. Grimes * Copyright (c) 1993 34b88c807SRodney W. Grimes * The Regents of the University of California. All rights reserved. 44b88c807SRodney W. Grimes * 54b88c807SRodney W. Grimes * This code is derived from software contributed to Berkeley by 64b88c807SRodney W. Grimes * Kenneth Almquist. 74b88c807SRodney W. Grimes * 84b88c807SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 94b88c807SRodney W. Grimes * modification, are permitted provided that the following conditions 104b88c807SRodney W. Grimes * are met: 114b88c807SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 124b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 134b88c807SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 144b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 154b88c807SRodney W. Grimes * documentation and/or other materials provided with the distribution. 16fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 174b88c807SRodney W. Grimes * may be used to endorse or promote products derived from this software 184b88c807SRodney W. Grimes * without specific prior written permission. 194b88c807SRodney W. Grimes * 204b88c807SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 214b88c807SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 224b88c807SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 234b88c807SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 244b88c807SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 254b88c807SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 264b88c807SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 274b88c807SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 284b88c807SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 294b88c807SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 304b88c807SRodney W. Grimes * SUCH DAMAGE. 314b88c807SRodney W. Grimes */ 324b88c807SRodney W. Grimes 334b88c807SRodney W. Grimes #ifndef lint 343d7b5b93SPhilippe Charnier #if 0 353d7b5b93SPhilippe Charnier static char sccsid[] = "@(#)histedit.c 8.2 (Berkeley) 5/4/95"; 363d7b5b93SPhilippe Charnier #endif 374b88c807SRodney W. Grimes #endif /* not lint */ 382749b141SDavid E. O'Brien #include <sys/cdefs.h> 392749b141SDavid E. O'Brien __FBSDID("$FreeBSD$"); 404b88c807SRodney W. Grimes 414b88c807SRodney W. Grimes #include <sys/param.h> 4292e331afSWarner Losh #include <limits.h> 434b88c807SRodney W. Grimes #include <paths.h> 444b88c807SRodney W. Grimes #include <stdio.h> 45aa9caaf6SPeter Wemm #include <stdlib.h> 46aa9caaf6SPeter Wemm #include <unistd.h> 47aa9caaf6SPeter Wemm /* 48aa9caaf6SPeter Wemm * Editline and history functions (and glue). 49aa9caaf6SPeter Wemm */ 504b88c807SRodney W. Grimes #include "shell.h" 514b88c807SRodney W. Grimes #include "parser.h" 524b88c807SRodney W. Grimes #include "var.h" 534b88c807SRodney W. Grimes #include "options.h" 54aa9caaf6SPeter Wemm #include "main.h" 55aa9caaf6SPeter Wemm #include "output.h" 564b88c807SRodney W. Grimes #include "mystring.h" 57aa9caaf6SPeter Wemm #ifndef NO_HISTORY 58aa9caaf6SPeter Wemm #include "myhistedit.h" 594b88c807SRodney W. Grimes #include "error.h" 60aa9caaf6SPeter Wemm #include "eval.h" 614b88c807SRodney W. Grimes #include "memalloc.h" 62454a02b3SJilles Tjoelker #include "builtins.h" 634b88c807SRodney W. Grimes 644b88c807SRodney W. Grimes #define MAXHISTLOOPS 4 /* max recursions through fc */ 654b88c807SRodney W. Grimes #define DEFEDITOR "ed" /* default editor *should* be $EDITOR */ 664b88c807SRodney W. Grimes 674b88c807SRodney W. Grimes History *hist; /* history cookie */ 684b88c807SRodney W. Grimes EditLine *el; /* editline cookie */ 694b88c807SRodney W. Grimes int displayhist; 70f91d2e21SJilles Tjoelker static FILE *el_in, *el_out; 714b88c807SRodney W. Grimes 7288328642SDavid E. O'Brien static char *fc_replace(const char *, char *, char *); 73260fc3f4SJilles Tjoelker static int not_fcnumber(const char *); 74260fc3f4SJilles Tjoelker static int str_to_event(const char *, int); 754b88c807SRodney W. Grimes 764b88c807SRodney W. Grimes /* 774b88c807SRodney W. Grimes * Set history and editing status. Called whenever the status may 784b88c807SRodney W. Grimes * have changed (figures out what to do). 794b88c807SRodney W. Grimes */ 80aa9caaf6SPeter Wemm void 815134c3f7SWarner Losh histedit(void) 82aa9caaf6SPeter Wemm { 834b88c807SRodney W. Grimes 844b88c807SRodney W. Grimes #define editing (Eflag || Vflag) 854b88c807SRodney W. Grimes 864b88c807SRodney W. Grimes if (iflag) { 874b88c807SRodney W. Grimes if (!hist) { 884b88c807SRodney W. Grimes /* 894b88c807SRodney W. Grimes * turn history on 904b88c807SRodney W. Grimes */ 914b88c807SRodney W. Grimes INTOFF; 924b88c807SRodney W. Grimes hist = history_init(); 934b88c807SRodney W. Grimes INTON; 944b88c807SRodney W. Grimes 954b88c807SRodney W. Grimes if (hist != NULL) 96ab0a2172SSteve Price sethistsize(histsizeval()); 974b88c807SRodney W. Grimes else 98c6204d4aSJilles Tjoelker out2fmt_flush("sh: can't initialize history\n"); 994b88c807SRodney W. Grimes } 1004b88c807SRodney W. Grimes if (editing && !el && isatty(0)) { /* && isatty(2) ??? */ 1014b88c807SRodney W. Grimes /* 1024b88c807SRodney W. Grimes * turn editing on 1034b88c807SRodney W. Grimes */ 104580eefdfSJilles Tjoelker char *term; 105580eefdfSJilles Tjoelker 1064b88c807SRodney W. Grimes INTOFF; 1074b88c807SRodney W. Grimes if (el_in == NULL) 1084b88c807SRodney W. Grimes el_in = fdopen(0, "r"); 1094b88c807SRodney W. Grimes if (el_out == NULL) 1104b88c807SRodney W. Grimes el_out = fdopen(2, "w"); 111f91d2e21SJilles Tjoelker if (el_in == NULL || el_out == NULL) 1124b88c807SRodney W. Grimes goto bad; 113580eefdfSJilles Tjoelker term = lookupvar("TERM"); 114580eefdfSJilles Tjoelker if (term) 115580eefdfSJilles Tjoelker setenv("TERM", term, 1); 116580eefdfSJilles Tjoelker else 117580eefdfSJilles Tjoelker unsetenv("TERM"); 118f91d2e21SJilles Tjoelker el = el_init(arg0, el_in, el_out, el_out); 1194b88c807SRodney W. Grimes if (el != NULL) { 1204b88c807SRodney W. Grimes if (hist) 1214b88c807SRodney W. Grimes el_set(el, EL_HIST, history, hist); 1224b88c807SRodney W. Grimes el_set(el, EL_PROMPT, getprompt); 123e46b12b7SJilles Tjoelker el_set(el, EL_ADDFN, "sh-complete", 124e46b12b7SJilles Tjoelker "Filename completion", 125e46b12b7SJilles Tjoelker _el_fn_sh_complete); 1264b88c807SRodney W. Grimes } else { 1274b88c807SRodney W. Grimes bad: 128c6204d4aSJilles Tjoelker out2fmt_flush("sh: can't initialize editing\n"); 1294b88c807SRodney W. Grimes } 1304b88c807SRodney W. Grimes INTON; 1314b88c807SRodney W. Grimes } else if (!editing && el) { 1324b88c807SRodney W. Grimes INTOFF; 1334b88c807SRodney W. Grimes el_end(el); 1344b88c807SRodney W. Grimes el = NULL; 1354b88c807SRodney W. Grimes INTON; 1364b88c807SRodney W. Grimes } 1374b88c807SRodney W. Grimes if (el) { 1384b88c807SRodney W. Grimes if (Vflag) 1394b88c807SRodney W. Grimes el_set(el, EL_EDITOR, "vi"); 1404b88c807SRodney W. Grimes else if (Eflag) 1414b88c807SRodney W. Grimes el_set(el, EL_EDITOR, "emacs"); 142e46b12b7SJilles Tjoelker el_set(el, EL_BIND, "^I", "sh-complete", NULL); 143ecd807fbSTim J. Robbins el_source(el, NULL); 1444b88c807SRodney W. Grimes } 1454b88c807SRodney W. Grimes } else { 1464b88c807SRodney W. Grimes INTOFF; 1474b88c807SRodney W. Grimes if (el) { /* no editing if not interactive */ 1484b88c807SRodney W. Grimes el_end(el); 1494b88c807SRodney W. Grimes el = NULL; 1504b88c807SRodney W. Grimes } 1514b88c807SRodney W. Grimes if (hist) { 1524b88c807SRodney W. Grimes history_end(hist); 1534b88c807SRodney W. Grimes hist = NULL; 1544b88c807SRodney W. Grimes } 1554b88c807SRodney W. Grimes INTON; 1564b88c807SRodney W. Grimes } 1574b88c807SRodney W. Grimes } 1584b88c807SRodney W. Grimes 159aa9caaf6SPeter Wemm 160aa9caaf6SPeter Wemm void 1612fae4c3dSPhilippe Charnier sethistsize(const char *hs) 162aa9caaf6SPeter Wemm { 1634b88c807SRodney W. Grimes int histsize; 164757eeda0SDavid E. O'Brien HistEvent he; 1654b88c807SRodney W. Grimes 1664b88c807SRodney W. Grimes if (hist != NULL) { 167ef9e6178SJilles Tjoelker if (hs == NULL || !is_number(hs)) 1684b88c807SRodney W. Grimes histsize = 100; 169ef9e6178SJilles Tjoelker else 170ef9e6178SJilles Tjoelker histsize = atoi(hs); 1712110d9c3SStefan Farfeleder history(hist, &he, H_SETSIZE, histsize); 172933803fbSJilles Tjoelker history(hist, &he, H_SETUNIQUE, 1); 1734b88c807SRodney W. Grimes } 1744b88c807SRodney W. Grimes } 1754b88c807SRodney W. Grimes 176580eefdfSJilles Tjoelker void 177580eefdfSJilles Tjoelker setterm(const char *term) 178580eefdfSJilles Tjoelker { 179580eefdfSJilles Tjoelker if (rootshell && el != NULL && term != NULL) 180580eefdfSJilles Tjoelker el_set(el, EL_TERMINAL, term); 181580eefdfSJilles Tjoelker } 182580eefdfSJilles Tjoelker 183aa9caaf6SPeter Wemm int 1847cbda738SJilles Tjoelker histcmd(int argc, char **argv __unused) 1854b88c807SRodney W. Grimes { 1864b88c807SRodney W. Grimes int ch; 187384aedabSJilles Tjoelker const char *editor = NULL; 188757eeda0SDavid E. O'Brien HistEvent he; 1894b88c807SRodney W. Grimes int lflg = 0, nflg = 0, rflg = 0, sflg = 0; 190757eeda0SDavid E. O'Brien int i, retval; 191384aedabSJilles Tjoelker const char *firststr, *laststr; 1924b88c807SRodney W. Grimes int first, last, direction; 193384aedabSJilles Tjoelker char *pat = NULL, *repl = NULL; 1944b88c807SRodney W. Grimes static int active = 0; 1954b88c807SRodney W. Grimes struct jmploc jmploc; 196224fbf9fSJilles Tjoelker struct jmploc *savehandler; 197224fbf9fSJilles Tjoelker char editfilestr[PATH_MAX]; 198224fbf9fSJilles Tjoelker char *volatile editfile; 199384aedabSJilles Tjoelker FILE *efp = NULL; 20032c07786STim J. Robbins int oldhistnum; 2014b88c807SRodney W. Grimes 2024b88c807SRodney W. Grimes if (hist == NULL) 2034b88c807SRodney W. Grimes error("history not active"); 2044b88c807SRodney W. Grimes 2054b88c807SRodney W. Grimes if (argc == 1) 2064b88c807SRodney W. Grimes error("missing history argument"); 2074b88c807SRodney W. Grimes 2087cbda738SJilles Tjoelker while (not_fcnumber(*argptr) && (ch = nextopt("e:lnrs")) != '\0') 2094b88c807SRodney W. Grimes switch ((char)ch) { 2104b88c807SRodney W. Grimes case 'e': 2117cbda738SJilles Tjoelker editor = shoptarg; 2124b88c807SRodney W. Grimes break; 2134b88c807SRodney W. Grimes case 'l': 2144b88c807SRodney W. Grimes lflg = 1; 2154b88c807SRodney W. Grimes break; 2164b88c807SRodney W. Grimes case 'n': 2174b88c807SRodney W. Grimes nflg = 1; 2184b88c807SRodney W. Grimes break; 2194b88c807SRodney W. Grimes case 'r': 2204b88c807SRodney W. Grimes rflg = 1; 2214b88c807SRodney W. Grimes break; 2224b88c807SRodney W. Grimes case 's': 2234b88c807SRodney W. Grimes sflg = 1; 2244b88c807SRodney W. Grimes break; 2254b88c807SRodney W. Grimes } 2264b88c807SRodney W. Grimes 227685a2705SJilles Tjoelker savehandler = handler; 2284b88c807SRodney W. Grimes /* 2294b88c807SRodney W. Grimes * If executing... 2304b88c807SRodney W. Grimes */ 2314b88c807SRodney W. Grimes if (lflg == 0 || editor || sflg) { 2324b88c807SRodney W. Grimes lflg = 0; /* ignore */ 233224fbf9fSJilles Tjoelker editfile = NULL; 2344b88c807SRodney W. Grimes /* 2354b88c807SRodney W. Grimes * Catch interrupts to reset active counter and 2364b88c807SRodney W. Grimes * cleanup temp files. 2374b88c807SRodney W. Grimes */ 2384b88c807SRodney W. Grimes if (setjmp(jmploc.loc)) { 2394b88c807SRodney W. Grimes active = 0; 240224fbf9fSJilles Tjoelker if (editfile) 2414b88c807SRodney W. Grimes unlink(editfile); 2424b88c807SRodney W. Grimes handler = savehandler; 2434b88c807SRodney W. Grimes longjmp(handler->loc, 1); 2444b88c807SRodney W. Grimes } 2454b88c807SRodney W. Grimes handler = &jmploc; 2464b88c807SRodney W. Grimes if (++active > MAXHISTLOOPS) { 2474b88c807SRodney W. Grimes active = 0; 2484b88c807SRodney W. Grimes displayhist = 0; 2494b88c807SRodney W. Grimes error("called recursively too many times"); 2504b88c807SRodney W. Grimes } 2514b88c807SRodney W. Grimes /* 2524b88c807SRodney W. Grimes * Set editor. 2534b88c807SRodney W. Grimes */ 2544b88c807SRodney W. Grimes if (sflg == 0) { 2554b88c807SRodney W. Grimes if (editor == NULL && 2564b88c807SRodney W. Grimes (editor = bltinlookup("FCEDIT", 1)) == NULL && 2574b88c807SRodney W. Grimes (editor = bltinlookup("EDITOR", 1)) == NULL) 2584b88c807SRodney W. Grimes editor = DEFEDITOR; 2594b88c807SRodney W. Grimes if (editor[0] == '-' && editor[1] == '\0') { 2604b88c807SRodney W. Grimes sflg = 1; /* no edit */ 2614b88c807SRodney W. Grimes editor = NULL; 2624b88c807SRodney W. Grimes } 2634b88c807SRodney W. Grimes } 2644b88c807SRodney W. Grimes } 2654b88c807SRodney W. Grimes 2664b88c807SRodney W. Grimes /* 2674b88c807SRodney W. Grimes * If executing, parse [old=new] now 2684b88c807SRodney W. Grimes */ 2697cbda738SJilles Tjoelker if (lflg == 0 && *argptr != NULL && 2707cbda738SJilles Tjoelker ((repl = strchr(*argptr, '=')) != NULL)) { 2717cbda738SJilles Tjoelker pat = *argptr; 2724b88c807SRodney W. Grimes *repl++ = '\0'; 2737cbda738SJilles Tjoelker argptr++; 2744b88c807SRodney W. Grimes } 2754b88c807SRodney W. Grimes /* 2764b88c807SRodney W. Grimes * determine [first] and [last] 2774b88c807SRodney W. Grimes */ 2787cbda738SJilles Tjoelker if (*argptr == NULL) { 2794b88c807SRodney W. Grimes firststr = lflg ? "-16" : "-1"; 2804b88c807SRodney W. Grimes laststr = "-1"; 2817cbda738SJilles Tjoelker } else if (argptr[1] == NULL) { 2827cbda738SJilles Tjoelker firststr = argptr[0]; 2837cbda738SJilles Tjoelker laststr = lflg ? "-1" : argptr[0]; 2847cbda738SJilles Tjoelker } else if (argptr[2] == NULL) { 2857cbda738SJilles Tjoelker firststr = argptr[0]; 2867cbda738SJilles Tjoelker laststr = argptr[1]; 2877cbda738SJilles Tjoelker } else 288274110dfSJilles Tjoelker error("too many arguments"); 2894b88c807SRodney W. Grimes /* 2904b88c807SRodney W. Grimes * Turn into event numbers. 2914b88c807SRodney W. Grimes */ 2924b88c807SRodney W. Grimes first = str_to_event(firststr, 0); 2934b88c807SRodney W. Grimes last = str_to_event(laststr, 1); 2944b88c807SRodney W. Grimes 2954b88c807SRodney W. Grimes if (rflg) { 2964b88c807SRodney W. Grimes i = last; 2974b88c807SRodney W. Grimes last = first; 2984b88c807SRodney W. Grimes first = i; 2994b88c807SRodney W. Grimes } 3004b88c807SRodney W. Grimes /* 3014b88c807SRodney W. Grimes * XXX - this should not depend on the event numbers 3024b88c807SRodney W. Grimes * always increasing. Add sequence numbers or offset 3034b88c807SRodney W. Grimes * to the history element in next (diskbased) release. 3044b88c807SRodney W. Grimes */ 3054b88c807SRodney W. Grimes direction = first < last ? H_PREV : H_NEXT; 3064b88c807SRodney W. Grimes 3074b88c807SRodney W. Grimes /* 3084b88c807SRodney W. Grimes * If editing, grab a temp file. 3094b88c807SRodney W. Grimes */ 3104b88c807SRodney W. Grimes if (editor) { 3114b88c807SRodney W. Grimes int fd; 3124b88c807SRodney W. Grimes INTOFF; /* easier */ 313224fbf9fSJilles Tjoelker sprintf(editfilestr, "%s/_shXXXXXX", _PATH_TMP); 314224fbf9fSJilles Tjoelker if ((fd = mkstemp(editfilestr)) < 0) 3154b88c807SRodney W. Grimes error("can't create temporary file %s", editfile); 316224fbf9fSJilles Tjoelker editfile = editfilestr; 3174b88c807SRodney W. Grimes if ((efp = fdopen(fd, "w")) == NULL) { 3184b88c807SRodney W. Grimes close(fd); 319274110dfSJilles Tjoelker error("Out of space"); 3204b88c807SRodney W. Grimes } 3214b88c807SRodney W. Grimes } 3224b88c807SRodney W. Grimes 3234b88c807SRodney W. Grimes /* 3244b88c807SRodney W. Grimes * Loop through selected history events. If listing or executing, 3254b88c807SRodney W. Grimes * do it now. Otherwise, put into temp file and call the editor 3264b88c807SRodney W. Grimes * after. 3274b88c807SRodney W. Grimes * 3284b88c807SRodney W. Grimes * The history interface needs rethinking, as the following 3294b88c807SRodney W. Grimes * convolutions will demonstrate. 3304b88c807SRodney W. Grimes */ 331757eeda0SDavid E. O'Brien history(hist, &he, H_FIRST); 332757eeda0SDavid E. O'Brien retval = history(hist, &he, H_NEXT_EVENT, first); 333757eeda0SDavid E. O'Brien for (;retval != -1; retval = history(hist, &he, direction)) { 3344b88c807SRodney W. Grimes if (lflg) { 3354b88c807SRodney W. Grimes if (!nflg) 336757eeda0SDavid E. O'Brien out1fmt("%5d ", he.num); 337757eeda0SDavid E. O'Brien out1str(he.str); 3384b88c807SRodney W. Grimes } else { 33922afca9bSJilles Tjoelker const char *s = pat ? 34022afca9bSJilles Tjoelker fc_replace(he.str, pat, repl) : he.str; 3414b88c807SRodney W. Grimes 3424b88c807SRodney W. Grimes if (sflg) { 3434b88c807SRodney W. Grimes if (displayhist) { 3444b88c807SRodney W. Grimes out2str(s); 345c6204d4aSJilles Tjoelker flushout(out2); 3464b88c807SRodney W. Grimes } 347cb806389SStefan Farfeleder evalstring(s, 0); 3484b88c807SRodney W. Grimes if (displayhist && hist) { 3494b88c807SRodney W. Grimes /* 3504b88c807SRodney W. Grimes * XXX what about recursive and 3514b88c807SRodney W. Grimes * relative histnums. 3524b88c807SRodney W. Grimes */ 35332c07786STim J. Robbins oldhistnum = he.num; 354757eeda0SDavid E. O'Brien history(hist, &he, H_ENTER, s); 35532c07786STim J. Robbins /* 35632c07786STim J. Robbins * XXX H_ENTER moves the internal 35732c07786STim J. Robbins * cursor, set it back to the current 35832c07786STim J. Robbins * entry. 35932c07786STim J. Robbins */ 360acb4eadaSJilles Tjoelker history(hist, &he, 36132c07786STim J. Robbins H_NEXT_EVENT, oldhistnum); 3624b88c807SRodney W. Grimes } 3634b88c807SRodney W. Grimes } else 3644b88c807SRodney W. Grimes fputs(s, efp); 3654b88c807SRodney W. Grimes } 3664b88c807SRodney W. Grimes /* 367776fc0e9SYaroslav Tykhiy * At end? (if we were to lose last, we'd sure be 3684b88c807SRodney W. Grimes * messed up). 3694b88c807SRodney W. Grimes */ 370757eeda0SDavid E. O'Brien if (he.num == last) 3714b88c807SRodney W. Grimes break; 3724b88c807SRodney W. Grimes } 3734b88c807SRodney W. Grimes if (editor) { 3744b88c807SRodney W. Grimes char *editcmd; 3754b88c807SRodney W. Grimes 3764b88c807SRodney W. Grimes fclose(efp); 37779fb1e45SJilles Tjoelker INTON; 3784b88c807SRodney W. Grimes editcmd = stalloc(strlen(editor) + strlen(editfile) + 2); 3794b88c807SRodney W. Grimes sprintf(editcmd, "%s %s", editor, editfile); 380cb806389SStefan Farfeleder evalstring(editcmd, 0); /* XXX - should use no JC command */ 3814b88c807SRodney W. Grimes readcmdfile(editfile); /* XXX - should read back - quick tst */ 3824b88c807SRodney W. Grimes unlink(editfile); 3834b88c807SRodney W. Grimes } 3844b88c807SRodney W. Grimes 3854b88c807SRodney W. Grimes if (lflg == 0 && active > 0) 3864b88c807SRodney W. Grimes --active; 3874b88c807SRodney W. Grimes if (displayhist) 3884b88c807SRodney W. Grimes displayhist = 0; 389685a2705SJilles Tjoelker handler = savehandler; 390aa9caaf6SPeter Wemm return 0; 3914b88c807SRodney W. Grimes } 3924b88c807SRodney W. Grimes 39388328642SDavid E. O'Brien static char * 3945134c3f7SWarner Losh fc_replace(const char *s, char *p, char *r) 3954b88c807SRodney W. Grimes { 3964b88c807SRodney W. Grimes char *dest; 3974b88c807SRodney W. Grimes int plen = strlen(p); 3984b88c807SRodney W. Grimes 3994b88c807SRodney W. Grimes STARTSTACKSTR(dest); 4004b88c807SRodney W. Grimes while (*s) { 4014b88c807SRodney W. Grimes if (*s == *p && strncmp(s, p, plen) == 0) { 4029d37e157SJilles Tjoelker STPUTS(r, dest); 4034b88c807SRodney W. Grimes s += plen; 4044b88c807SRodney W. Grimes *p = '\0'; /* so no more matches */ 4054b88c807SRodney W. Grimes } else 4064b88c807SRodney W. Grimes STPUTC(*s++, dest); 4074b88c807SRodney W. Grimes } 4087cfe6941SDavid E. O'Brien STPUTC('\0', dest); 4094b88c807SRodney W. Grimes dest = grabstackstr(dest); 4104b88c807SRodney W. Grimes 4114b88c807SRodney W. Grimes return (dest); 4124b88c807SRodney W. Grimes } 4134b88c807SRodney W. Grimes 414260fc3f4SJilles Tjoelker static int 4152cac6e36SJilles Tjoelker not_fcnumber(const char *s) 4164b88c807SRodney W. Grimes { 417ab0a2172SSteve Price if (s == NULL) 41862730a71SSteve Price return (0); 4194b88c807SRodney W. Grimes if (*s == '-') 4204b88c807SRodney W. Grimes s++; 4214b88c807SRodney W. Grimes return (!is_number(s)); 4224b88c807SRodney W. Grimes } 4234b88c807SRodney W. Grimes 424260fc3f4SJilles Tjoelker static int 4252cac6e36SJilles Tjoelker str_to_event(const char *str, int last) 4264b88c807SRodney W. Grimes { 427757eeda0SDavid E. O'Brien HistEvent he; 4282cac6e36SJilles Tjoelker const char *s = str; 4294b88c807SRodney W. Grimes int relative = 0; 430757eeda0SDavid E. O'Brien int i, retval; 4314b88c807SRodney W. Grimes 432757eeda0SDavid E. O'Brien retval = history(hist, &he, H_FIRST); 4334b88c807SRodney W. Grimes switch (*s) { 4344b88c807SRodney W. Grimes case '-': 4354b88c807SRodney W. Grimes relative = 1; 4364b88c807SRodney W. Grimes /*FALLTHROUGH*/ 4374b88c807SRodney W. Grimes case '+': 4384b88c807SRodney W. Grimes s++; 4394b88c807SRodney W. Grimes } 4404b88c807SRodney W. Grimes if (is_number(s)) { 4414b88c807SRodney W. Grimes i = atoi(s); 4424b88c807SRodney W. Grimes if (relative) { 443757eeda0SDavid E. O'Brien while (retval != -1 && i--) { 444757eeda0SDavid E. O'Brien retval = history(hist, &he, H_NEXT); 4454b88c807SRodney W. Grimes } 446757eeda0SDavid E. O'Brien if (retval == -1) 447757eeda0SDavid E. O'Brien retval = history(hist, &he, H_LAST); 4484b88c807SRodney W. Grimes } else { 449757eeda0SDavid E. O'Brien retval = history(hist, &he, H_NEXT_EVENT, i); 450757eeda0SDavid E. O'Brien if (retval == -1) { 4514b88c807SRodney W. Grimes /* 4524b88c807SRodney W. Grimes * the notion of first and last is 4534b88c807SRodney W. Grimes * backwards to that of the history package 4544b88c807SRodney W. Grimes */ 455757eeda0SDavid E. O'Brien retval = history(hist, &he, last ? H_FIRST : H_LAST); 4564b88c807SRodney W. Grimes } 4574b88c807SRodney W. Grimes } 458757eeda0SDavid E. O'Brien if (retval == -1) 4594b88c807SRodney W. Grimes error("history number %s not found (internal error)", 4604b88c807SRodney W. Grimes str); 4614b88c807SRodney W. Grimes } else { 4624b88c807SRodney W. Grimes /* 4634b88c807SRodney W. Grimes * pattern 4644b88c807SRodney W. Grimes */ 465757eeda0SDavid E. O'Brien retval = history(hist, &he, H_PREV_STR, str); 466757eeda0SDavid E. O'Brien if (retval == -1) 4674b88c807SRodney W. Grimes error("history pattern not found: %s", str); 4684b88c807SRodney W. Grimes } 469757eeda0SDavid E. O'Brien return (he.num); 4704b88c807SRodney W. Grimes } 471088acf90STim J. Robbins 472088acf90STim J. Robbins int 473088acf90STim J. Robbins bindcmd(int argc, char **argv) 474088acf90STim J. Robbins { 475088acf90STim J. Robbins 476088acf90STim J. Robbins if (el == NULL) 477088acf90STim J. Robbins error("line editing is disabled"); 47822afca9bSJilles Tjoelker return (el_parse(el, argc, __DECONST(const char **, argv))); 479088acf90STim J. Robbins } 480088acf90STim J. Robbins 48162730a71SSteve Price #else 48262730a71SSteve Price #include "error.h" 48362730a71SSteve Price 48462730a71SSteve Price int 4855134c3f7SWarner Losh histcmd(int argc, char **argv) 48662730a71SSteve Price { 48762730a71SSteve Price 48862730a71SSteve Price error("not compiled with history support"); 48962730a71SSteve Price /*NOTREACHED*/ 49062730a71SSteve Price return (0); 49162730a71SSteve Price } 492088acf90STim J. Robbins 493088acf90STim J. Robbins int 494088acf90STim J. Robbins bindcmd(int argc, char **argv) 495088acf90STim J. Robbins { 496088acf90STim J. Robbins 497088acf90STim J. Robbins error("not compiled with line editing support"); 498088acf90STim J. Robbins return (0); 499088acf90STim J. Robbins } 50062730a71SSteve Price #endif 501