lib/libedit/TEST/tc1.c

   1 /*      $NetBSD: tc1.c,v 1.2 2009/03/31 17:38:27 christos Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Christos Zoulas of Cornell University.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include "config.h"
  36 #ifndef lint
  37 __COPYRIGHT("@(#) Copyright (c) 1992, 1993\n\
  38         The Regents of the University of California.  All rights reserved.\n");
  39 #endif /* not lint */
  40
  41 #if !defined(lint) && !defined(SCCSID)
  42 #if 0
  43 static char sccsid[] = "@(#)test.c      8.1 (Berkeley) 6/4/93";
  44 #else
  45 __RCSID("$NetBSD: tc1.c,v 1.2 2009/03/31 17:38:27 christos Exp $");
  46 #endif
  47 #endif /* not lint && not SCCSID */
  48
  49 /*
  50  * test.c: A little test program
  51  */
  52 #include <stdio.h>
  53 #include <string.h>
  54 #include <signal.h>
  55 #include <sys/wait.h>
  56 #include <ctype.h>
  57 #include <stdlib.h>
  58 #include <unistd.h>
  59 #include <dirent.h>
  60
  61 #include "histedit.h"
  62
  63 static int continuation = 0;
  64 volatile sig_atomic_t gotsig = 0;
  65
  66 static  unsigned char   complete(EditLine *, int);
  67         int     main(int, char **);
  68 static  char   *prompt(EditLine *);
  69 static  void    sig(int);
  70
  71 static char *
  72 prompt(EditLine *el)
  73 {
  74         static char a[] = "\1\e[7m\1Edit$\1\e[0m\1 ";
  75         static char b[] = "Edit> ";
  76
  77         return (continuation ? b : a);
  78 }
  79
  80 static void
  81 sig(int i)
  82 {
  83         gotsig = i;
  84 }
  85
  86 static unsigned char
  87 complete(EditLine *el, int ch)
  88 {
  89         DIR *dd = opendir(".");
  90         struct dirent *dp;
  91         const char* ptr;
  92         const LineInfo *lf = el_line(el);
  93         int len;
  94
  95         /*
  96          * Find the last word
  97          */
  98         for (ptr = lf->cursor - 1;
  99             !isspace((unsigned char)*ptr) && ptr > lf->buffer; ptr--)
 100                 continue;
 101         len = lf->cursor - ++ptr;
 102
 103         for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) {
 104                 if (len > strlen(dp->d_name))
 105                         continue;
 106                 if (strncmp(dp->d_name, ptr, len) == 0) {
 107                         closedir(dd);
 108                         if (el_insertstr(el, &dp->d_name[len]) == -1)
 109                                 return (CC_ERROR);
 110                         else
 111                                 return (CC_REFRESH);
 112                 }
 113         }
 114
 115         closedir(dd);
 116         return (CC_ERROR);
 117 }
 118
 119 int
 120 main(int argc, char *argv[])
 121 {
 122         EditLine *el = NULL;
 123         int num;
 124         const char *buf;
 125         Tokenizer *tok;
 126 #if 0
 127         int lastevent = 0;
 128 #endif
 129         int ncontinuation;
 130         History *hist;
 131         HistEvent ev;
 132
 133         (void) signal(SIGINT, sig);
 134         (void) signal(SIGQUIT, sig);
 135         (void) signal(SIGHUP, sig);
 136         (void) signal(SIGTERM, sig);
 137
 138         hist = history_init();          /* Init the builtin history     */
 139                                         /* Remember 100 events          */
 140         history(hist, &ev, H_SETSIZE, 100);
 141
 142         tok  = tok_init(NULL);          /* Initialize the tokenizer     */
 143
 144                                         /* Initialize editline          */
 145         el = el_init(*argv, stdin, stdout, stderr);
 146
 147         el_set(el, EL_EDITOR, "vi");    /* Default editor is vi         */
 148         el_set(el, EL_SIGNAL, 1);       /* Handle signals gracefully    */
 149         el_set(el, EL_PROMPT_ESC, prompt, '\1');/* Set the prompt function */
 150
 151                         /* Tell editline to use this history interface  */
 152         el_set(el, EL_HIST, history, hist);
 153
 154                                         /* Add a user-defined function  */
 155         el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
 156
 157                                         /* Bind tab to it               */
 158         el_set(el, EL_BIND, "^I", "ed-complete", NULL);
 159
 160         /*
 161          * Bind j, k in vi command mode to previous and next line, instead
 162          * of previous and next history.
 163          */
 164         el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
 165         el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
 166
 167         /*
 168          * Source the user's defaults file.
 169          */
 170         el_source(el, NULL);
 171
 172         while ((buf = el_gets(el, &num)) != NULL && num != 0)  {
 173                 int ac, cc, co;
 174 #ifdef DEBUG
 175                 int i;
 176 #endif
 177                 const char **av;
 178                 const LineInfo *li;
 179                 li = el_line(el);
 180 #ifdef DEBUG
 181                 (void) fprintf(stderr, "==> got %d %s", num, buf);
 182                 (void) fprintf(stderr, "  > li `%.*s_%.*s'\n",
 183                     (li->cursor - li->buffer), li->buffer,
 184                     (li->lastchar - 1 - li->cursor),
 185                     (li->cursor >= li->lastchar) ? "" : li->cursor);
 186
 187 #endif
 188                 if (gotsig) {
 189                         (void) fprintf(stderr, "Got signal %d.\n", gotsig);
 190                         gotsig = 0;
 191                         el_reset(el);
 192                 }
 193
 194                 if (!continuation && num == 1)
 195                         continue;
 196
 197                 ac = cc = co = 0;
 198                 ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co);
 199                 if (ncontinuation < 0) {
 200                         (void) fprintf(stderr, "Internal error\n");
 201                         continuation = 0;
 202                         continue;
 203                 }
 204 #ifdef DEBUG
 205                 (void) fprintf(stderr, "  > nc %d ac %d cc %d co %d\n",
 206                     ncontinuation, ac, cc, co);
 207 #endif
 208 #if 0
 209                 if (continuation) {
 210                         /*
 211                          * Append to the right event in case the user
 212                          * moved around in history.
 213                          */
 214                         if (history(hist, &ev, H_SET, lastevent) == -1)
 215                                 err(1, "%d: %s", lastevent, ev.str);
 216                         history(hist, &ev, H_ADD , buf);
 217                 } else {
 218                         history(hist, &ev, H_ENTER, buf);
 219                         lastevent = ev.num;
 220                 }
 221 #else
 222                                 /* Simpler */
 223                 history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf);
 224 #endif
 225
 226                 continuation = ncontinuation;
 227                 ncontinuation = 0;
 228                 if (continuation)
 229                         continue;
 230 #ifdef DEBUG
 231                 for (i = 0; i < ac; i++) {
 232                         (void) fprintf(stderr, "  > arg# %2d ", i);
 233                         if (i != cc)
 234                                 (void) fprintf(stderr, "`%s'\n", av[i]);
 235                         else
 236                                 (void) fprintf(stderr, "`%.*s_%s'\n",
 237                                     co, av[i], av[i] + co);
 238                 }
 239 #endif
 240
 241                 if (strcmp(av[0], "history") == 0) {
 242                         int rv;
 243
 244                         switch (ac) {
 245                         case 1:
 246                                 for (rv = history(hist, &ev, H_LAST); rv != -1;
 247                                     rv = history(hist, &ev, H_PREV))
 248                                         (void) fprintf(stdout, "%4d %s",
 249                                             ev.num, ev.str);
 250                                 break;
 251
 252                         case 2:
 253                                 if (strcmp(av[1], "clear") == 0)
 254                                          history(hist, &ev, H_CLEAR);
 255                                 else
 256                                          goto badhist;
 257                                 break;
 258
 259                         case 3:
 260                                 if (strcmp(av[1], "load") == 0)
 261                                          history(hist, &ev, H_LOAD, av[2]);
 262                                 else if (strcmp(av[1], "save") == 0)
 263                                          history(hist, &ev, H_SAVE, av[2]);
 264                                 break;
 265
 266                         badhist:
 267                         default:
 268                                 (void) fprintf(stderr,
 269                                     "Bad history arguments\n");
 270                                 break;
 271                         }
 272                 } else if (el_parse(el, ac, av) == -1) {
 273                         switch (fork()) {
 274                         case 0:
 275                                 execvp(av[0], (char *const *)__UNCONST(av));
 276                                 perror(av[0]);
 277                                 _exit(1);
 278                                 /*NOTREACHED*/
 279                                 break;
 280
 281                         case -1:
 282                                 perror("fork");
 283                                 break;
 284
 285                         default:
 286                                 if (wait(&num) == -1)
 287                                         perror("wait");
 288                                 (void) fprintf(stderr, "Exit %x\n", num);
 289                                 break;
 290                         }
 291                 }
 292
 293                 tok_reset(tok);
 294         }
 295
 296         el_end(el);
 297         tok_end(tok);
 298         history_end(hist);
 299
 300         return (0);
 301 }