Update libedit from NetBSD.
[dragonfly.git] / lib / libedit / TEST / test.c
1 /*-
2  * Copyright (c) 1992, 1993
3  *      The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Christos Zoulas of Cornell University.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * @(#)test.c   8.1 (Berkeley) 6/4/93
33  * $NetBSD: test.c,v 1.18 2005/06/01 11:37:52 lukem Exp $
34  * $DragonFly: src/lib/libedit/TEST/test.c,v 1.3 2005/11/13 11:58:30 corecode Exp $
35  */
36
37 #include "config.h"
38 #ifndef lint
39 __COPYRIGHT("@(#) Copyright (c) 1992, 1993\n\
40         The Regents of the University of California.  All rights reserved.\n");
41 #endif /* not lint */
42
43 /*
44  * test.c: A little test program
45  */
46 #include <stdio.h>
47 #include <string.h>
48 #include <signal.h>
49 #include <sys/wait.h>
50 #include <ctype.h>
51 #include <stdlib.h>
52 #include <unistd.h>
53 #include <dirent.h>
54
55 #include "histedit.h"
56
57 static int continuation = 0;
58 volatile sig_atomic_t gotsig = 0;
59
60 static  unsigned char   complete(EditLine *, int);
61         int     main(int, char **);
62 static  char   *prompt(EditLine *);
63 static  void    sig(int);
64
65 static char *
66 prompt(EditLine *el)
67 {
68         static char a[] = "Edit$ ";
69         static char b[] = "Edit> ";
70
71         return (continuation ? b : a);
72 }
73
74 static void
75 sig(int i)
76 {
77         gotsig = i;
78 }
79
80 static unsigned char
81 complete(EditLine *el, int ch)
82 {
83         DIR *dd = opendir(".");
84         struct dirent *dp;
85         const char* ptr;
86         const LineInfo *lf = el_line(el);
87         int len;
88
89         /*
90          * Find the last word
91          */
92         for (ptr = lf->cursor - 1;
93             !isspace((unsigned char)*ptr) && ptr > lf->buffer; ptr--)
94                 continue;
95         len = lf->cursor - ++ptr;
96
97         for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) {
98                 if (len > strlen(dp->d_name))
99                         continue;
100                 if (strncmp(dp->d_name, ptr, len) == 0) {
101                         closedir(dd);
102                         if (el_insertstr(el, &dp->d_name[len]) == -1)
103                                 return (CC_ERROR);
104                         else
105                                 return (CC_REFRESH);
106                 }
107         }
108
109         closedir(dd);
110         return (CC_ERROR);
111 }
112
113 int
114 main(int argc, char *argv[])
115 {
116         EditLine *el = NULL;
117         int num;
118         const char *buf;
119         Tokenizer *tok;
120 #if 0
121         int lastevent = 0;
122 #endif
123         int ncontinuation;
124         History *hist;
125         HistEvent ev;
126
127         (void) signal(SIGINT, sig);
128         (void) signal(SIGQUIT, sig);
129         (void) signal(SIGHUP, sig);
130         (void) signal(SIGTERM, sig);
131
132         hist = history_init();          /* Init the builtin history     */
133                                         /* Remember 100 events          */
134         history(hist, &ev, H_SETSIZE, 100);
135
136         tok  = tok_init(NULL);          /* Initialize the tokenizer     */
137
138                                         /* Initialize editline          */
139         el = el_init(*argv, stdin, stdout, stderr);
140
141         el_set(el, EL_EDITOR, "vi");    /* Default editor is vi         */
142         el_set(el, EL_SIGNAL, 1);       /* Handle signals gracefully    */
143         el_set(el, EL_PROMPT, prompt);  /* Set the prompt function      */
144
145                         /* Tell editline to use this history interface  */
146         el_set(el, EL_HIST, history, hist);
147
148                                         /* Add a user-defined function  */
149         el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
150
151                                         /* Bind tab to it               */
152         el_set(el, EL_BIND, "^I", "ed-complete", NULL);
153
154         /*
155          * Bind j, k in vi command mode to previous and next line, instead
156          * of previous and next history.
157          */
158         el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
159         el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
160
161         /*
162          * Source the user's defaults file.
163          */
164         el_source(el, NULL);
165
166         while ((buf = el_gets(el, &num)) != NULL && num != 0)  {
167                 int ac, cc, co;
168 #ifdef DEBUG
169                 int i;
170 #endif
171                 const char **av;
172                 const LineInfo *li;
173                 li = el_line(el);
174 #ifdef DEBUG
175                 (void) fprintf(stderr, "==> got %d %s", num, buf);
176                 (void) fprintf(stderr, "  > li `%.*s_%.*s'\n",
177                     (li->cursor - li->buffer), li->buffer,
178                     (li->lastchar - 1 - li->cursor),
179                     (li->cursor >= li->lastchar) ? "" : li->cursor);
180
181 #endif
182                 if (gotsig) {
183                         (void) fprintf(stderr, "Got signal %d.\n", gotsig);
184                         gotsig = 0;
185                         el_reset(el);
186                 }
187
188                 if (!continuation && num == 1)
189                         continue;
190
191                 ac = cc = co = 0;
192                 ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co);
193                 if (ncontinuation < 0) {
194                         (void) fprintf(stderr, "Internal error\n");
195                         continuation = 0;
196                         continue;
197                 }
198 #ifdef DEBUG
199                 (void) fprintf(stderr, "  > nc %d ac %d cc %d co %d\n",
200                     ncontinuation, ac, cc, co);
201 #endif
202 #if 0
203                 if (continuation) {
204                         /*
205                          * Append to the right event in case the user
206                          * moved around in history.
207                          */
208                         if (history(hist, &ev, H_SET, lastevent) == -1)
209                                 err(1, "%d: %s", lastevent, ev.str);
210                         history(hist, &ev, H_ADD , buf);
211                 } else {
212                         history(hist, &ev, H_ENTER, buf);
213                         lastevent = ev.num;
214                 }
215 #else
216                                 /* Simpler */
217                 history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf);
218 #endif
219
220                 continuation = ncontinuation;
221                 ncontinuation = 0;
222                 if (continuation)
223                         continue;
224 #ifdef DEBUG
225                 for (i = 0; i < ac; i++) {
226                         (void) fprintf(stderr, "  > arg# %2d ", i);
227                         if (i != cc)
228                                 (void) fprintf(stderr, "`%s'\n", av[i]);
229                         else
230                                 (void) fprintf(stderr, "`%.*s_%s'\n",
231                                     co, av[i], av[i] + co);
232                 }
233 #endif
234
235                 if (strcmp(av[0], "history") == 0) {
236                         int rv;
237
238                         switch (ac) {
239                         case 1:
240                                 for (rv = history(hist, &ev, H_LAST); rv != -1;
241                                     rv = history(hist, &ev, H_PREV))
242                                         (void) fprintf(stdout, "%4d %s",
243                                             ev.num, ev.str);
244                                 break;
245
246                         case 2:
247                                 if (strcmp(av[1], "clear") == 0)
248                                          history(hist, &ev, H_CLEAR);
249                                 else
250                                          goto badhist;
251                                 break;
252
253                         case 3:
254                                 if (strcmp(av[1], "load") == 0)
255                                          history(hist, &ev, H_LOAD, av[2]);
256                                 else if (strcmp(av[1], "save") == 0)
257                                          history(hist, &ev, H_SAVE, av[2]);
258                                 break;
259
260                         badhist:
261                         default:
262                                 (void) fprintf(stderr,
263                                     "Bad history arguments\n");
264                                 break;
265                         }
266                 } else if (el_parse(el, ac, av) == -1) {
267                         switch (fork()) {
268                         case 0:
269                                 execvp(av[0], (char *const *)(void *)(unsigned long)(const void *)(av));
270                                 perror(av[0]);
271                                 _exit(1);
272                                 /*NOTREACHED*/
273                                 break;
274
275                         case -1:
276                                 perror("fork");
277                                 break;
278
279                         default:
280                                 if (wait(&num) == -1)
281                                         perror("wait");
282                                 (void) fprintf(stderr, "Exit %x\n", num);
283                                 break;
284                         }
285                 }
286
287                 tok_reset(tok);
288         }
289
290         el_end(el);
291         tok_end(tok);
292         history_end(hist);
293
294         return (0);
295 }