eln.c revision 1.17.2.1
1 /* $NetBSD: eln.c,v 1.17.2.1 2015/05/13 13:33:55 martin 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 1.17.2.1 2015/05/13 13:33:55 martin 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 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 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 * 75 el_gets(EditLine *el, int *nread) 76 { 77 const wchar_t *tmp; 78 79 if (!(el->el_flags & CHARSET_IS_UTF8)) 80 el->el_flags |= IGNORE_EXTCHARS; 81 tmp = el_wgets(el, nread); 82 if (!(el->el_flags & CHARSET_IS_UTF8)) 83 el->el_flags &= ~IGNORE_EXTCHARS; 84 return ct_encode_string(tmp, &el->el_lgcyconv); 85 } 86 87 88 public int 89 el_parse(EditLine *el, int argc, const char *argv[]) 90 { 91 int ret; 92 const wchar_t **wargv; 93 94 wargv = (const wchar_t **) 95 ct_decode_argv(argc, argv, &el->el_lgcyconv); 96 if (!wargv) 97 return -1; 98 ret = el_wparse(el, argc, wargv); 99 ct_free_argv(wargv); 100 101 return ret; 102 } 103 104 105 public int 106 el_set(EditLine *el, int op, ...) 107 { 108 va_list ap; 109 int ret; 110 111 if (!el) 112 return -1; 113 va_start(ap, op); 114 115 switch (op) { 116 case EL_PROMPT: /* el_pfunc_t */ 117 case EL_RPROMPT: { 118 el_pfunc_t p = va_arg(ap, el_pfunc_t); 119 ret = prompt_set(el, p, 0, op, 0); 120 break; 121 } 122 123 case EL_RESIZE: { 124 el_zfunc_t p = va_arg(ap, el_zfunc_t); 125 void *arg = va_arg(ap, void *); 126 ret = ch_resizefun(el, p, arg); 127 break; 128 } 129 130 case EL_ALIAS_TEXT: { 131 el_afunc_t p = va_arg(ap, el_afunc_t); 132 void *arg = va_arg(ap, void *); 133 ret = ch_aliasfun(el, p, arg); 134 break; 135 } 136 137 case EL_PROMPT_ESC: 138 case EL_RPROMPT_ESC: { 139 el_pfunc_t p = va_arg(ap, el_pfunc_t); 140 int c = va_arg(ap, int); 141 142 ret = prompt_set(el, p, c, op, 0); 143 break; 144 } 145 146 case EL_TERMINAL: /* const char * */ 147 ret = el_wset(el, op, va_arg(ap, char *)); 148 break; 149 150 case EL_EDITOR: /* const wchar_t * */ 151 ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *), 152 &el->el_lgcyconv)); 153 break; 154 155 case EL_SIGNAL: /* int */ 156 case EL_EDITMODE: 157 case EL_UNBUFFERED: 158 case EL_PREP_TERM: 159 ret = el_wset(el, op, va_arg(ap, int)); 160 break; 161 162 case EL_BIND: /* const char * list -> const wchar_t * list */ 163 case EL_TELLTC: 164 case EL_SETTC: 165 case EL_ECHOTC: 166 case EL_SETTY: { 167 const char *argv[20]; 168 int i; 169 const wchar_t **wargv; 170 for (i = 1; i < (int)__arraycount(argv) - 1; ++i) 171 if ((argv[i] = va_arg(ap, const char *)) == NULL) 172 break; 173 argv[0] = argv[i] = NULL; 174 wargv = (const wchar_t **) 175 ct_decode_argv(i + 1, argv, &el->el_lgcyconv); 176 if (!wargv) { 177 ret = -1; 178 goto out; 179 } 180 /* 181 * AFAIK we can't portably pass through our new wargv to 182 * el_wset(), so we have to reimplement the body of 183 * el_wset() for these ops. 184 */ 185 switch (op) { 186 case EL_BIND: 187 wargv[0] = STR("bind"); 188 ret = map_bind(el, i, wargv); 189 break; 190 case EL_TELLTC: 191 wargv[0] = STR("telltc"); 192 ret = terminal_telltc(el, i, wargv); 193 break; 194 case EL_SETTC: 195 wargv[0] = STR("settc"); 196 ret = terminal_settc(el, i, wargv); 197 break; 198 case EL_ECHOTC: 199 wargv[0] = STR("echotc"); 200 ret = terminal_echotc(el, i, wargv); 201 break; 202 case EL_SETTY: 203 wargv[0] = STR("setty"); 204 ret = tty_stty(el, i, wargv); 205 break; 206 default: 207 ret = -1; 208 } 209 ct_free_argv(wargv); 210 break; 211 } 212 213 /* XXX: do we need to change el_func_t too? */ 214 case EL_ADDFN: { /* const char *, const char *, el_func_t */ 215 const char *args[2]; 216 el_func_t func; 217 wchar_t **wargv; 218 219 args[0] = va_arg(ap, const char *); 220 args[1] = va_arg(ap, const char *); 221 func = va_arg(ap, el_func_t); 222 223 wargv = ct_decode_argv(2, args, &el->el_lgcyconv); 224 if (!wargv) { 225 ret = -1; 226 goto out; 227 } 228 // XXX: The two strdup's leak 229 ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]), 230 func); 231 ct_free_argv(wargv); 232 break; 233 } 234 case EL_HIST: { /* hist_fun_t, const char * */ 235 hist_fun_t fun = va_arg(ap, hist_fun_t); 236 void *ptr = va_arg(ap, void *); 237 ret = hist_set(el, fun, ptr); 238 el->el_flags |= NARROW_HISTORY; 239 break; 240 } 241 242 /* XXX: do we need to change el_rfunc_t? */ 243 case EL_GETCFN: /* el_rfunc_t */ 244 ret = el_wset(el, op, va_arg(ap, el_rfunc_t)); 245 el->el_flags |= NARROW_READ; 246 break; 247 248 case EL_CLIENTDATA: /* void * */ 249 ret = el_wset(el, op, va_arg(ap, void *)); 250 break; 251 252 case EL_SETFP: { /* int, FILE * */ 253 int what = va_arg(ap, int); 254 FILE *fp = va_arg(ap, FILE *); 255 ret = el_wset(el, op, what, fp); 256 break; 257 } 258 259 case EL_REFRESH: 260 re_clear_display(el); 261 re_refresh(el); 262 terminal__flush(el); 263 ret = 0; 264 break; 265 266 default: 267 ret = -1; 268 break; 269 } 270 271 out: 272 va_end(ap); 273 return ret; 274 } 275 276 277 public int 278 el_get(EditLine *el, int op, ...) 279 { 280 va_list ap; 281 int ret; 282 283 if (!el) 284 return -1; 285 286 va_start(ap, op); 287 288 switch (op) { 289 case EL_PROMPT: /* el_pfunc_t * */ 290 case EL_RPROMPT: { 291 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 292 ret = prompt_get(el, p, 0, op); 293 break; 294 } 295 296 case EL_PROMPT_ESC: /* el_pfunc_t *, char **/ 297 case EL_RPROMPT_ESC: { 298 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 299 char *c = va_arg(ap, char *); 300 wchar_t wc = 0; 301 ret = prompt_get(el, p, &wc, op); 302 *c = (char)wc; 303 break; 304 } 305 306 case EL_EDITOR: { 307 const char **p = va_arg(ap, const char **); 308 const wchar_t *pw; 309 ret = el_wget(el, op, &pw); 310 *p = ct_encode_string(pw, &el->el_lgcyconv); 311 if (!el->el_lgcyconv.csize) 312 ret = -1; 313 break; 314 } 315 316 case EL_TERMINAL: /* const char ** */ 317 ret = el_wget(el, op, va_arg(ap, const char **)); 318 break; 319 320 case EL_SIGNAL: /* int * */ 321 case EL_EDITMODE: 322 case EL_UNBUFFERED: 323 case EL_PREP_TERM: 324 ret = el_wget(el, op, va_arg(ap, int *)); 325 break; 326 327 case EL_GETTC: { 328 char *argv[20]; 329 static char gettc[] = "gettc"; 330 int i; 331 for (i = 1; i < (int)__arraycount(argv); ++i) 332 if ((argv[i] = va_arg(ap, char *)) == NULL) 333 break; 334 argv[0] = gettc; 335 ret = terminal_gettc(el, i, argv); 336 break; 337 } 338 339 /* XXX: do we need to change el_rfunc_t? */ 340 case EL_GETCFN: /* el_rfunc_t */ 341 ret = el_wget(el, op, va_arg(ap, el_rfunc_t *)); 342 break; 343 344 case EL_CLIENTDATA: /* void ** */ 345 ret = el_wget(el, op, va_arg(ap, void **)); 346 break; 347 348 case EL_GETFP: { /* int, FILE ** */ 349 int what = va_arg(ap, int); 350 FILE **fpp = va_arg(ap, FILE **); 351 ret = el_wget(el, op, what, fpp); 352 break; 353 } 354 355 default: 356 ret = -1; 357 break; 358 } 359 360 va_end(ap); 361 return ret; 362 } 363 364 365 const LineInfo * 366 el_line(EditLine *el) 367 { 368 const LineInfoW *winfo = el_wline(el); 369 LineInfo *info = &el->el_lgcylinfo; 370 size_t offset; 371 const Char *p; 372 373 info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv); 374 375 offset = 0; 376 for (p = winfo->buffer; p < winfo->cursor; p++) 377 offset += ct_enc_width(*p); 378 info->cursor = info->buffer + offset; 379 380 offset = 0; 381 for (p = winfo->buffer; p < winfo->lastchar; p++) 382 offset += ct_enc_width(*p); 383 info->lastchar = info->buffer + offset; 384 385 return info; 386 } 387 388 389 int 390 el_insertstr(EditLine *el, const char *str) 391 { 392 return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv)); 393 } 394
Indexes created Thu Oct 02 10:09:58 GMT 2025