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
43static 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 $");
46#endif
47#endif /* not lint && not SCCSID */
48
49/* from src/sys/sys/cdefs.h */
50#ifndef __UNCONST
51# define __UNCONST(a) ((void *)(unsigned long)(const void *)(a))
52#endif
53
54/*
55 * test.c: A little test program
56 */
57#include <stdio.h>
58#include <string.h>
59#include <signal.h>
60#include <sys/wait.h>
61#include <ctype.h>
62#include <stdlib.h>
63#include <unistd.h>
64#include <dirent.h>
65#include <locale.h>
66
67#include "histedit.h"
68
69static int continuation = 0;
70volatile sig_atomic_t gotsig = 0;
71
72static	unsigned char	complete(EditLine *, int);
73	int	main(int, char **);
74static	char   *prompt(EditLine *);
75static	void	sig(int);
76
77static char *
78prompt(EditLine *el __attribute__((__unused__)))
79{
80	static char a[] = "\1\033[7m\1Edit$\1\033[0m\1 ";
81	static char b[] = "Edit> ";
82
83	return (continuation ? b : a);
84}
85
86static void
87sig(int i)
88{
89	gotsig = i;
90}
91
92static unsigned char
93complete(EditLine *el, int ch __attribute__((__unused__)))
94{
95	DIR *dd = opendir(".");
96	struct dirent *dp;
97	const char* ptr;
98	const LineInfo *lf = el_line(el);
99	size_t len;
100	int res = CC_ERROR;
101
102	/*
103	 * Find the last word
104	 */
105	for (ptr = lf->cursor - 1;
106	    !isspace((unsigned char)*ptr) && ptr > lf->buffer; ptr--)
107		continue;
108	len = lf->cursor - ++ptr;
109
110	for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) {
111		if (len > strlen(dp->d_name))
112			continue;
113		if (strncmp(dp->d_name, ptr, len) == 0) {
114			if (el_insertstr(el, &dp->d_name[len]) == -1)
115				res = CC_ERROR;
116			else
117				res = CC_REFRESH;
118			break;
119		}
120	}
121
122	closedir(dd);
123	return res;
124}
125
126int
127main(int argc __attribute__((__unused__)), char *argv[])
128{
129	EditLine *el = NULL;
130	int num;
131	const char *buf;
132	Tokenizer *tok;
133#if 0
134	int lastevent = 0;
135#endif
136	int ncontinuation;
137	History *hist;
138	HistEvent ev;
139
140	(void) setlocale(LC_CTYPE, "");
141	(void) signal(SIGINT, sig);
142	(void) signal(SIGQUIT, sig);
143	(void) signal(SIGHUP, sig);
144	(void) signal(SIGTERM, sig);
145
146	hist = history_init();		/* Init the builtin history	*/
147					/* Remember 100 events		*/
148	history(hist, &ev, H_SETSIZE, 100);
149
150	tok  = tok_init(NULL);		/* Initialize the tokenizer	*/
151
152					/* Initialize editline		*/
153	el = el_init(*argv, stdin, stdout, stderr);
154
155	el_set(el, EL_EDITOR, "vi");	/* Default editor is vi		*/
156	el_set(el, EL_SIGNAL, 1);	/* Handle signals gracefully	*/
157	el_set(el, EL_PROMPT_ESC, prompt, '\1');/* Set the prompt function */
158
159			/* Tell editline to use this history interface	*/
160	el_set(el, EL_HIST, history, hist);
161
162					/* Add a user-defined function	*/
163	el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
164
165					/* Bind tab to it 		*/
166	el_set(el, EL_BIND, "^I", "ed-complete", NULL);
167
168	/*
169	 * Bind j, k in vi command mode to previous and next line, instead
170	 * of previous and next history.
171	 */
172	el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
173	el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
174
175	/*
176	 * Source the user's defaults file.
177	 */
178	el_source(el, NULL);
179
180	while ((buf = el_gets(el, &num)) != NULL && num != 0)  {
181		int ac, cc, co;
182#ifdef DEBUG
183		int i;
184#endif
185		const char **av;
186		const LineInfo *li;
187		li = el_line(el);
188#ifdef DEBUG
189		(void) fprintf(stderr, "==> got %d %s", num, buf);
190		(void) fprintf(stderr, "  > li `%.*s_%.*s'\n",
191		    (li->cursor - li->buffer), li->buffer,
192		    (li->lastchar - 1 - li->cursor),
193		    (li->cursor >= li->lastchar) ? "" : li->cursor);
194
195#endif
196		if (gotsig) {
197			(void) fprintf(stderr, "Got signal %d.\n", gotsig);
198			gotsig = 0;
199			el_reset(el);
200		}
201
202		if (!continuation && num == 1)
203			continue;
204
205		ac = cc = co = 0;
206		ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co);
207		if (ncontinuation < 0) {
208			(void) fprintf(stderr, "Internal error\n");
209			continuation = 0;
210			continue;
211		}
212#ifdef DEBUG
213		(void) fprintf(stderr, "  > nc %d ac %d cc %d co %d\n",
214		    ncontinuation, ac, cc, co);
215#endif
216#if 0
217		if (continuation) {
218			/*
219			 * Append to the right event in case the user
220			 * moved around in history.
221			 */
222			if (history(hist, &ev, H_SET, lastevent) == -1)
223				err(1, "%d: %s", lastevent, ev.str);
224			history(hist, &ev, H_ADD , buf);
225		} else {
226			history(hist, &ev, H_ENTER, buf);
227			lastevent = ev.num;
228		}
229#else
230				/* Simpler */
231		history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf);
232#endif
233
234		continuation = ncontinuation;
235		ncontinuation = 0;
236		if (continuation)
237			continue;
238#ifdef DEBUG
239		for (i = 0; i < ac; i++) {
240			(void) fprintf(stderr, "  > arg# %2d ", i);
241			if (i != cc)
242				(void) fprintf(stderr, "`%s'\n", av[i]);
243			else
244				(void) fprintf(stderr, "`%.*s_%s'\n",
245				    co, av[i], av[i] + co);
246		}
247#endif
248
249		if (strcmp(av[0], "history") == 0) {
250			int rv;
251
252			switch (ac) {
253			case 1:
254				for (rv = history(hist, &ev, H_LAST); rv != -1;
255				    rv = history(hist, &ev, H_PREV))
256					(void) fprintf(stdout, "%4d %s",
257					    ev.num, ev.str);
258				break;
259
260			case 2:
261				if (strcmp(av[1], "clear") == 0)
262					 history(hist, &ev, H_CLEAR);
263				else
264					 goto badhist;
265				break;
266
267			case 3:
268				if (strcmp(av[1], "load") == 0)
269					 history(hist, &ev, H_LOAD, av[2]);
270				else if (strcmp(av[1], "save") == 0)
271					 history(hist, &ev, H_SAVE, av[2]);
272				break;
273
274			badhist:
275			default:
276				(void) fprintf(stderr,
277				    "Bad history arguments\n");
278				break;
279			}
280		} else if (el_parse(el, ac, av) == -1) {
281			switch (fork()) {
282			case 0:
283				execvp(av[0], (char *const *)__UNCONST(av));
284				perror(av[0]);
285				_exit(1);
286				/*NOTREACHED*/
287				break;
288
289			case -1:
290				perror("fork");
291				break;
292
293			default:
294				if (wait(&num) == -1)
295					perror("wait");
296				(void) fprintf(stderr, "Exit %x\n", num);
297				break;
298			}
299		}
300
301		tok_reset(tok);
302	}
303
304	el_end(el);
305	tok_end(tok);
306	history_end(hist);
307
308	return (0);
309}
310