lib/libedit/TEST/tc1.c

   1 /*      $NetBSD: tc1.c,v 1.5 2010/04/18 21:17:47 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 1.5 2010/04/18 21:17:47 christos Exp $");
  46 #endif
  47 #endif /* not lint && not SCCSID */
  48
  49 /*
  50  * test.c: A little test program
  51  */
  52 #include <stdio.h>
  53 #include <string.h>
  54 #include <signal.h>
  55 #include <sys/wait.h>
  56 #include <ctype.h>
  57 #include <stdlib.h>
  58 #include <unistd.h>
  59 #include <dirent.h>
  60 #include <locale.h>
  61
  62 #include "histedit.h"
  63
  64 static int continuation = 0;
  65 volatile sig_atomic_t gotsig = 0;
  66
  67 static  unsigned char   complete(EditLine *, int);
  68         int     main(int, char **);
  69 static  char   *prompt(EditLine *);
  70 static  void    sig(int);
  71
  72 static char *
  73 prompt(EditLine *el)
  74 {
  75         static char a[] = "\1\033[7m\1Edit$\1\033[0m\1 ";
  76         static char b[] = "Edit> ";
  77
  78         return (continuation ? b : a);
  79 }
  80
  81 static void
  82 sig(int i)
  83 {
  84         gotsig = i;
  85 }
  86
  87 static unsigned char
  88 complete(EditLine *el, int ch)
  89 {
  90         DIR *dd = opendir(".");
  91         struct dirent *dp;
  92         const char* ptr;
  93         const LineInfo *lf = el_line(el);
  94         int len;
  95         int res = CC_ERROR;
  96
  97         /*
  98          * Find the last word
  99          */
 100         for (ptr = lf->cursor - 1;
 101             !isspace((unsigned char)*ptr) && ptr > lf->buffer; ptr--)
 102                 continue;
 103         len = lf->cursor - ++ptr;
 104
 105         for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) {
 106                 if (len > strlen(dp->d_name))
 107                         continue;
 108                 if (strncmp(dp->d_name, ptr, len) == 0) {
 109                         if (el_insertstr(el, &dp->d_name[len]) == -1)
 110                                 res = CC_ERROR;
 111                         else
 112                                 res = CC_REFRESH;
 113                         break;
 114                 }
 115         }
 116
 117         closedir(dd);
 118         return res;
 119 }
 120
 121 int
 122 main(int argc, char *argv[])
 123 {
 124         EditLine *el = NULL;
 125         int num;
 126         const char *buf;
 127         Tokenizer *tok;
 128 #if 0
 129         int lastevent = 0;
 130 #endif
 131         int ncontinuation;
 132         History *hist;
 133         HistEvent ev;
 134
 135         (void) setlocale(LC_CTYPE, "");
 136         (void) signal(SIGINT, sig);
 137         (void) signal(SIGQUIT, sig);
 138         (void) signal(SIGHUP, sig);
 139         (void) signal(SIGTERM, sig);
 140
 141         hist = history_init();          /* Init the builtin history     */
 142                                         /* Remember 100 events          */
 143         history(hist, &ev, H_SETSIZE, 100);
 144
 145         tok  = tok_init(NULL);          /* Initialize the tokenizer     */
 146
 147                                         /* Initialize editline          */
 148         el = el_init(*argv, stdin, stdout, stderr);
 149
 150         el_set(el, EL_EDITOR, "vi");    /* Default editor is vi         */
 151         el_set(el, EL_SIGNAL, 1);       /* Handle signals gracefully    */
 152         el_set(el, EL_PROMPT_ESC, prompt, '\1');/* Set the prompt function */
 153
 154                         /* Tell editline to use this history interface  */
 155         el_set(el, EL_HIST, history, hist);
 156
 157                                         /* Add a user-defined function  */
 158         el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
 159
 160                                         /* Bind tab to it               */
 161         el_set(el, EL_BIND, "^I", "ed-complete", NULL);
 162
 163         /*
 164          * Bind j, k in vi command mode to previous and next line, instead
 165          * of previous and next history.
 166          */
 167         el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
 168         el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
 169
 170         /*
 171          * Source the user's defaults file.
 172          */
 173         el_source(el, NULL);
 174
 175         while ((buf = el_gets(el, &num)) != NULL && num != 0)  {
 176                 int ac, cc, co;
 177 #ifdef DEBUG
 178                 int i;
 179 #endif
 180                 const char **av;
 181                 const LineInfo *li;
 182                 li = el_line(el);
 183 #ifdef DEBUG
 184                 (void) fprintf(stderr, "==> got %d %s", num, buf);
 185                 (void) fprintf(stderr, "  > li `%.*s_%.*s'\n",
 186                     (li->cursor - li->buffer), li->buffer,
 187                     (li->lastchar - 1 - li->cursor),
 188                     (li->cursor >= li->lastchar) ? "" : li->cursor);
 189
 190 #endif
 191                 if (gotsig) {
 192                         (void) fprintf(stderr, "Got signal %d.\n", gotsig);
 193                         gotsig = 0;
 194                         el_reset(el);
 195                 }
 196
 197                 if (!continuation && num == 1)
 198                         continue;
 199
 200                 ac = cc = co = 0;
 201                 ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co);
 202                 if (ncontinuation < 0) {
 203                         (void) fprintf(stderr, "Internal error\n");
 204                         continuation = 0;
 205                         continue;
 206                 }
 207 #ifdef DEBUG
 208                 (void) fprintf(stderr, "  > nc %d ac %d cc %d co %d\n",
 209                     ncontinuation, ac, cc, co);
 210 #endif
 211 #if 0
 212                 if (continuation) {
 213                         /*
 214                          * Append to the right event in case the user
 215                          * moved around in history.
 216                          */
 217                         if (history(hist, &ev, H_SET, lastevent) == -1)
 218                                 err(1, "%d: %s", lastevent, ev.str);
 219                         history(hist, &ev, H_ADD , buf);
 220                 } else {
 221                         history(hist, &ev, H_ENTER, buf);
 222                         lastevent = ev.num;
 223                 }
 224 #else
 225                                 /* Simpler */
 226                 history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf);
 227 #endif
 228
 229                 continuation = ncontinuation;
 230                 ncontinuation = 0;
 231                 if (continuation)
 232                         continue;
 233 #ifdef DEBUG
 234                 for (i = 0; i < ac; i++) {
 235                         (void) fprintf(stderr, "  > arg# %2d ", i);
 236                         if (i != cc)
 237                                 (void) fprintf(stderr, "`%s'\n", av[i]);
 238                         else
 239                                 (void) fprintf(stderr, "`%.*s_%s'\n",
 240                                     co, av[i], av[i] + co);
 241                 }
 242 #endif
 243
 244                 if (strcmp(av[0], "history") == 0) {
 245                         int rv;
 246
 247                         switch (ac) {
 248                         case 1:
 249                                 for (rv = history(hist, &ev, H_LAST); rv != -1;
 250                                     rv = history(hist, &ev, H_PREV))
 251                                         (void) fprintf(stdout, "%4d %s",
 252                                             ev.num, ev.str);
 253                                 break;
 254
 255                         case 2:
 256                                 if (strcmp(av[1], "clear") == 0)
 257                                          history(hist, &ev, H_CLEAR);
 258                                 else
 259                                          goto badhist;
 260                                 break;
 261
 262                         case 3:
 263                                 if (strcmp(av[1], "load") == 0)
 264                                          history(hist, &ev, H_LOAD, av[2]);
 265                                 else if (strcmp(av[1], "save") == 0)
 266                                          history(hist, &ev, H_SAVE, av[2]);
 267                                 break;
 268
 269                         badhist:
 270                         default:
 271                                 (void) fprintf(stderr,
 272                                     "Bad history arguments\n");
 273                                 break;
 274                         }
 275                 } else if (el_parse(el, ac, av) == -1) {
 276                         switch (fork()) {
 277                         case 0:
 278                                 execvp(av[0], (char *const *)__UNCONST(av));
 279                                 perror(av[0]);
 280                                 _exit(1);
 281                                 /*NOTREACHED*/
 282                                 break;
 283
 284                         case -1:
 285                                 perror("fork");
 286                                 break;
 287
 288                         default:
 289                                 if (wait(&num) == -1)
 290                                         perror("wait");
 291                                 (void) fprintf(stderr, "Exit %x\n", num);
 292                                 break;
 293                         }
 294                 }
 295
 296                 tok_reset(tok);
 297         }
 298
 299         el_end(el);
 300         tok_end(tok);
 301         history_end(hist);
 302
 303         return (0);
 304 }