1 /* $NetBSD: eln.c,v 1.17 2014/06/18 18:12:28 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the NetBSD
18 * Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35 #include "config.h"
36 #if !defined(lint) && !defined(SCCSID)
37 __RCSID("$NetBSD: eln.c,v 1.17 2014/06/18 18:12:28 christos Exp $");
38 #endif /* not lint && not SCCSID */
39
40 #include "histedit.h"
41 #include "el.h"
42 #include "read.h"
43 #include <stdarg.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46
47 public int
el_getc(EditLine * el,char * cp)48 el_getc(EditLine *el, char *cp)
49 {
50 int num_read;
51 wchar_t wc = 0;
52
53 if (!(el->el_flags & CHARSET_IS_UTF8))
54 el->el_flags |= IGNORE_EXTCHARS;
55 num_read = el_wgetc (el, &wc);
56 if (!(el->el_flags & CHARSET_IS_UTF8))
57 el->el_flags &= ~IGNORE_EXTCHARS;
58
59 if (num_read > 0)
60 *cp = (char)wc;
61 return num_read;
62 }
63
64
65 public void
el_push(EditLine * el,const char * str)66 el_push(EditLine *el, const char *str)
67 {
68 /* Using multibyte->wide string decoding works fine under single-byte
69 * character sets too, and Does The Right Thing. */
70 el_wpush(el, ct_decode_string(str, &el->el_lgcyconv));
71 }
72
73
74 public const char *
el_gets(EditLine * el,int * nread)75 el_gets(EditLine *el, int *nread)
76 {
77 const wchar_t *tmp;
78
79 el->el_flags |= IGNORE_EXTCHARS;
80 tmp = el_wgets(el, nread);
81 el->el_flags &= ~IGNORE_EXTCHARS;
82 return ct_encode_string(tmp, &el->el_lgcyconv);
83 }
84
85
86 public int
el_parse(EditLine * el,int argc,const char * argv[])87 el_parse(EditLine *el, int argc, const char *argv[])
88 {
89 int ret;
90 const wchar_t **wargv;
91
92 wargv = (const wchar_t **)
93 ct_decode_argv(argc, argv, &el->el_lgcyconv);
94 if (!wargv)
95 return -1;
96 ret = el_wparse(el, argc, wargv);
97 ct_free_argv(wargv);
98
99 return ret;
100 }
101
102
103 public int
el_set(EditLine * el,int op,...)104 el_set(EditLine *el, int op, ...)
105 {
106 va_list ap;
107 int ret;
108
109 if (!el)
110 return -1;
111 va_start(ap, op);
112
113 switch (op) {
114 case EL_PROMPT: /* el_pfunc_t */
115 case EL_RPROMPT: {
116 el_pfunc_t p = va_arg(ap, el_pfunc_t);
117 ret = prompt_set(el, p, 0, op, 0);
118 break;
119 }
120
121 case EL_RESIZE: {
122 el_zfunc_t p = va_arg(ap, el_zfunc_t);
123 void *arg = va_arg(ap, void *);
124 ret = ch_resizefun(el, p, arg);
125 break;
126 }
127
128 case EL_ALIAS_TEXT: {
129 el_afunc_t p = va_arg(ap, el_afunc_t);
130 void *arg = va_arg(ap, void *);
131 ret = ch_aliasfun(el, p, arg);
132 break;
133 }
134
135 case EL_PROMPT_ESC:
136 case EL_RPROMPT_ESC: {
137 el_pfunc_t p = va_arg(ap, el_pfunc_t);
138 int c = va_arg(ap, int);
139
140 ret = prompt_set(el, p, c, op, 0);
141 break;
142 }
143
144 case EL_TERMINAL: /* const char * */
145 ret = el_wset(el, op, va_arg(ap, char *));
146 break;
147
148 case EL_EDITOR: /* const wchar_t * */
149 ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *),
150 &el->el_lgcyconv));
151 break;
152
153 case EL_SIGNAL: /* int */
154 case EL_EDITMODE:
155 case EL_UNBUFFERED:
156 case EL_PREP_TERM:
157 ret = el_wset(el, op, va_arg(ap, int));
158 break;
159
160 case EL_BIND: /* const char * list -> const wchar_t * list */
161 case EL_TELLTC:
162 case EL_SETTC:
163 case EL_ECHOTC:
164 case EL_SETTY: {
165 const char *argv[20];
166 int i;
167 const wchar_t **wargv;
168 for (i = 1; i < (int)__arraycount(argv) - 1; ++i)
169 if ((argv[i] = va_arg(ap, const char *)) == NULL)
170 break;
171 argv[0] = argv[i] = NULL;
172 wargv = (const wchar_t **)
173 ct_decode_argv(i + 1, argv, &el->el_lgcyconv);
174 if (!wargv) {
175 ret = -1;
176 goto out;
177 }
178 /*
179 * AFAIK we can't portably pass through our new wargv to
180 * el_wset(), so we have to reimplement the body of
181 * el_wset() for these ops.
182 */
183 switch (op) {
184 case EL_BIND:
185 wargv[0] = STR("bind");
186 ret = map_bind(el, i, wargv);
187 break;
188 case EL_TELLTC:
189 wargv[0] = STR("telltc");
190 ret = terminal_telltc(el, i, wargv);
191 break;
192 case EL_SETTC:
193 wargv[0] = STR("settc");
194 ret = terminal_settc(el, i, wargv);
195 break;
196 case EL_ECHOTC:
197 wargv[0] = STR("echotc");
198 ret = terminal_echotc(el, i, wargv);
199 break;
200 case EL_SETTY:
201 wargv[0] = STR("setty");
202 ret = tty_stty(el, i, wargv);
203 break;
204 default:
205 ret = -1;
206 }
207 ct_free_argv(wargv);
208 break;
209 }
210
211 /* XXX: do we need to change el_func_t too? */
212 case EL_ADDFN: { /* const char *, const char *, el_func_t */
213 const char *args[2];
214 el_func_t func;
215 wchar_t **wargv;
216
217 args[0] = va_arg(ap, const char *);
218 args[1] = va_arg(ap, const char *);
219 func = va_arg(ap, el_func_t);
220
221 wargv = ct_decode_argv(2, args, &el->el_lgcyconv);
222 if (!wargv) {
223 ret = -1;
224 goto out;
225 }
226 // XXX: The two strdup's leak
227 ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]),
228 func);
229 ct_free_argv(wargv);
230 break;
231 }
232 case EL_HIST: { /* hist_fun_t, const char * */
233 hist_fun_t fun = va_arg(ap, hist_fun_t);
234 void *ptr = va_arg(ap, void *);
235 ret = hist_set(el, fun, ptr);
236 el->el_flags |= NARROW_HISTORY;
237 break;
238 }
239
240 /* XXX: do we need to change el_rfunc_t? */
241 case EL_GETCFN: /* el_rfunc_t */
242 ret = el_wset(el, op, va_arg(ap, el_rfunc_t));
243 el->el_flags |= NARROW_READ;
244 break;
245
246 case EL_CLIENTDATA: /* void * */
247 ret = el_wset(el, op, va_arg(ap, void *));
248 break;
249
250 case EL_SETFP: { /* int, FILE * */
251 int what = va_arg(ap, int);
252 FILE *fp = va_arg(ap, FILE *);
253 ret = el_wset(el, op, what, fp);
254 break;
255 }
256
257 case EL_REFRESH:
258 re_clear_display(el);
259 re_refresh(el);
260 terminal__flush(el);
261 ret = 0;
262 break;
263
264 default:
265 ret = -1;
266 break;
267 }
268
269 out:
270 va_end(ap);
271 return ret;
272 }
273
274
275 public int
el_get(EditLine * el,int op,...)276 el_get(EditLine *el, int op, ...)
277 {
278 va_list ap;
279 int ret;
280
281 if (!el)
282 return -1;
283
284 va_start(ap, op);
285
286 switch (op) {
287 case EL_PROMPT: /* el_pfunc_t * */
288 case EL_RPROMPT: {
289 el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
290 ret = prompt_get(el, p, 0, op);
291 break;
292 }
293
294 case EL_PROMPT_ESC: /* el_pfunc_t *, char **/
295 case EL_RPROMPT_ESC: {
296 el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
297 char *c = va_arg(ap, char *);
298 wchar_t wc = 0;
299 ret = prompt_get(el, p, &wc, op);
300 *c = (char)wc;
301 break;
302 }
303
304 case EL_EDITOR: {
305 const char **p = va_arg(ap, const char **);
306 const wchar_t *pw;
307 ret = el_wget(el, op, &pw);
308 *p = ct_encode_string(pw, &el->el_lgcyconv);
309 if (!el->el_lgcyconv.csize)
310 ret = -1;
311 break;
312 }
313
314 case EL_TERMINAL: /* const char ** */
315 ret = el_wget(el, op, va_arg(ap, const char **));
316 break;
317
318 case EL_SIGNAL: /* int * */
319 case EL_EDITMODE:
320 case EL_UNBUFFERED:
321 case EL_PREP_TERM:
322 ret = el_wget(el, op, va_arg(ap, int *));
323 break;
324
325 case EL_GETTC: {
326 char *argv[20];
327 static char gettc[] = "gettc";
328 int i;
329 for (i = 1; i < (int)__arraycount(argv); ++i)
330 if ((argv[i] = va_arg(ap, char *)) == NULL)
331 break;
332 argv[0] = gettc;
333 ret = terminal_gettc(el, i, argv);
334 break;
335 }
336
337 /* XXX: do we need to change el_rfunc_t? */
338 case EL_GETCFN: /* el_rfunc_t */
339 ret = el_wget(el, op, va_arg(ap, el_rfunc_t *));
340 break;
341
342 case EL_CLIENTDATA: /* void ** */
343 ret = el_wget(el, op, va_arg(ap, void **));
344 break;
345
346 case EL_GETFP: { /* int, FILE ** */
347 int what = va_arg(ap, int);
348 FILE **fpp = va_arg(ap, FILE **);
349 ret = el_wget(el, op, what, fpp);
350 break;
351 }
352
353 default:
354 ret = -1;
355 break;
356 }
357
358 va_end(ap);
359 return ret;
360 }
361
362
363 const LineInfo *
el_line(EditLine * el)364 el_line(EditLine *el)
365 {
366 const LineInfoW *winfo = el_wline(el);
367 LineInfo *info = &el->el_lgcylinfo;
368 size_t offset;
369 const Char *p;
370
371 info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv);
372
373 offset = 0;
374 for (p = winfo->buffer; p < winfo->cursor; p++)
375 offset += ct_enc_width(*p);
376 info->cursor = info->buffer + offset;
377
378 offset = 0;
379 for (p = winfo->buffer; p < winfo->lastchar; p++)
380 offset += ct_enc_width(*p);
381 info->lastchar = info->buffer + offset;
382
383 return info;
384 }
385
386
387 int
el_insertstr(EditLine * el,const char * str)388 el_insertstr(EditLine *el, const char *str)
389 {
390 return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv));
391 }
392