1/*	$NetBSD: tc1.c,v 1.4 2010/04/15 00:50:46 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
43static char sccsid[] = "@(#)test.c	8.1 (Berkeley) 6/4/93";
44#else
45__RCSID("$NetBSD: tc1.c,v 1.4 2010/04/15 00:50:46 christos Exp $");
46#endif
47#endif /* not lint && not SCCSID */
48
49/*
50 * test.c: A little test program
51 */
52#include <stdio.h>
53#include <string.h>
54#include <signal.h>
55#include <sys/wait.h>
56#include <ctype.h>
57#include <stdlib.h>
58#include <unistd.h>
59#include <dirent.h>
60#include <locale.h>
61
62#include "histedit.h"
63
64static int continuation = 0;
65volatile sig_atomic_t gotsig = 0;
66
67static	unsigned char	complete(EditLine *, int);
68	int	main(int, char **);
69static	char   *prompt(EditLine *);
70static	void	sig(int);
71
72static char *
73prompt(EditLine *el)
74{
75	static char a[] = "\1\033[7m\1Edit$\1\033[0m\1 ";
76	static char b[] = "Edit> ";
77
78	return (continuation ? b : a);
79}
80
81static void
82sig(int i)
83{
84	gotsig = i;
85}
86
87static unsigned char
88complete(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
121int
122main(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}
305