eln.c revision 1.6
1 /* $NetBSD: eln.c,v 1.6 2010/01/20 01:15:52 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 1.6 2010/01/20 01:15:52 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 48 el_getc(EditLine *el, char *cp) 49 { 50 int num_read; 51 wchar_t wc = 0; 52 53 el->el_flags |= IGNORE_EXTCHARS; 54 num_read = el_wgetc (el, &wc); 55 el->el_flags &= ~IGNORE_EXTCHARS; 56 57 if (num_read > 0) 58 *cp = (unsigned char)wc; 59 return num_read; 60 } 61 62 63 public void 64 el_push(EditLine *el, const char *str) 65 { 66 /* Using multibyte->wide string decoding works fine under single-byte 67 * character sets too, and Does The Right Thing. */ 68 el_wpush(el, ct_decode_string(str, &el->el_lgcyconv)); 69 } 70 71 72 public const char * 73 el_gets(EditLine *el, int *nread) 74 { 75 const wchar_t *tmp; 76 77 el->el_flags |= IGNORE_EXTCHARS; 78 tmp = el_wgets(el, nread); 79 el->el_flags &= ~IGNORE_EXTCHARS; 80 return ct_encode_string(tmp, &el->el_lgcyconv); 81 } 82 83 84 public int 85 el_parse(EditLine *el, int argc, const char *argv[]) 86 { 87 int ret; 88 const wchar_t **wargv; 89 90 wargv = (const wchar_t **) 91 ct_decode_argv(argc, argv, &el->el_lgcyconv); 92 if (!wargv) 93 return -1; 94 ret = el_wparse(el, argc, wargv); 95 ct_free_argv(wargv); 96 97 return ret; 98 } 99 100 101 public int 102 el_set(EditLine *el, int op, ...) 103 { 104 va_list ap; 105 int ret; 106 107 if (!el) 108 return -1; 109 va_start(ap, op); 110 111 switch (op) { 112 case EL_PROMPT: /* el_pfunc_t */ 113 case EL_RPROMPT: { 114 el_pfunc_t p = va_arg(ap, el_pfunc_t); 115 ret = prompt_set(el, p, 0, op, 0); 116 break; 117 } 118 119 case EL_TERMINAL: /* const char * */ 120 ret = el_wset(el, op, va_arg(ap, char *)); 121 break; 122 123 case EL_EDITOR: /* const wchar_t * */ 124 ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *), 125 &el->el_lgcyconv)); 126 break; 127 128 case EL_SIGNAL: /* int */ 129 case EL_EDITMODE: 130 case EL_UNBUFFERED: 131 case EL_PREP_TERM: 132 ret = el_wset(el, op, va_arg(ap, int)); 133 break; 134 135 case EL_BIND: /* const char * list -> const wchar_t * list */ 136 case EL_TELLTC: 137 case EL_SETTC: 138 case EL_ECHOTC: 139 case EL_SETTY: { 140 const char *argv[20]; 141 int i; 142 const wchar_t **wargv; 143 for (i = 1; i < (int)__arraycount(argv); ++i) 144 if ((argv[i] = va_arg(ap, char *)) == NULL) 145 break; 146 argv[0] = NULL; 147 wargv = (const wchar_t **) 148 ct_decode_argv(i, argv, &el->el_lgcyconv); 149 if (!wargv) { 150 ret = -1; 151 goto out; 152 } 153 /* 154 * AFAIK we can't portably pass through our new wargv to 155 * el_wset(), so we have to reimplement the body of 156 * el_wset() for these ops. 157 */ 158 switch (op) { 159 case EL_BIND: 160 wargv[0] = STR("bind"); 161 ret = map_bind(el, i, wargv); 162 break; 163 case EL_TELLTC: 164 wargv[0] = STR("telltc"); 165 ret = term_telltc(el, i, wargv); 166 break; 167 case EL_SETTC: 168 wargv[0] = STR("settc"); 169 ret = term_settc(el, i, wargv); 170 break; 171 case EL_ECHOTC: 172 wargv[0] = STR("echotc"); 173 ret = term_echotc(el, i, wargv); 174 break; 175 case EL_SETTY: 176 wargv[0] = STR("setty"); 177 ret = tty_stty(el, i, wargv); 178 break; 179 default: 180 ret = -1; 181 } 182 ct_free_argv(wargv); 183 break; 184 } 185 186 /* XXX: do we need to change el_func_t too? */ 187 case EL_ADDFN: { /* const char *, const char *, el_func_t */ 188 const char *args[2]; 189 el_func_t func; 190 wchar_t **wargv; 191 192 args[0] = va_arg(ap, const char *); 193 args[1] = va_arg(ap, const char *); 194 func = va_arg(ap, el_func_t); 195 196 wargv = ct_decode_argv(2, args, &el->el_lgcyconv); 197 if (!wargv) { 198 ret = -1; 199 goto out; 200 } 201 // XXX: The two strdup's leak 202 ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]), 203 func); 204 ct_free_argv(wargv); 205 break; 206 } 207 case EL_HIST: { /* hist_fun_t, const char * */ 208 hist_fun_t fun = va_arg(ap, hist_fun_t); 209 ptr_t ptr = va_arg(ap, ptr_t); 210 ret = hist_set(el, fun, ptr); 211 el->el_flags |= NARROW_HISTORY; 212 break; 213 } 214 /* XXX: do we need to change el_rfunc_t? */ 215 case EL_GETCFN: /* el_rfunc_t */ 216 ret = el_wset(el, op, va_arg(ap, el_rfunc_t)); 217 el->el_flags |= NARROW_READ; 218 break; 219 case EL_CLIENTDATA: /* void * */ 220 ret = el_wset(el, op, va_arg(ap, void *)); 221 break; 222 case EL_SETFP: { /* int, FILE * */ 223 int what = va_arg(ap, int); 224 FILE *fp = va_arg(ap, FILE *); 225 ret = el_wset(el, op, what, fp); 226 break; 227 } 228 case EL_PROMPT_ESC: /* el_pfunc_t, char */ 229 case EL_RPROMPT_ESC: { 230 el_pfunc_t p = va_arg(ap, el_pfunc_t); 231 char c = va_arg(ap, int); 232 ret = prompt_set(el, p, c, op, 0); 233 break; 234 } 235 default: 236 ret = -1; 237 break; 238 } 239 240 out: 241 va_end(ap); 242 return ret; 243 } 244 245 246 public int 247 el_get(EditLine *el, int op, ...) 248 { 249 va_list ap; 250 int ret; 251 252 if (!el) 253 return -1; 254 255 va_start(ap, op); 256 257 switch (op) { 258 case EL_PROMPT: /* el_pfunc_t * */ 259 case EL_RPROMPT: { 260 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 261 ret = prompt_get(el, p, 0, op); 262 break; 263 } 264 265 case EL_PROMPT_ESC: /* el_pfunc_t *, char **/ 266 case EL_RPROMPT_ESC: { 267 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 268 char *c = va_arg(ap, char *); 269 wchar_t wc; 270 ret = prompt_get(el, p, &wc, op); 271 *c = (unsigned char)wc; 272 break; 273 } 274 275 case EL_EDITOR: { 276 const char **p = va_arg(ap, const char **); 277 const wchar_t *pw; 278 ret = el_wget(el, op, &pw); 279 *p = ct_encode_string(pw, &el->el_lgcyconv); 280 if (!el->el_lgcyconv.csize) 281 ret = -1; 282 break; 283 } 284 285 case EL_TERMINAL: /* const char ** */ 286 ret = el_wget(el, op, va_arg(ap, const char **)); 287 break; 288 289 case EL_SIGNAL: /* int * */ 290 case EL_EDITMODE: 291 case EL_UNBUFFERED: 292 case EL_PREP_TERM: 293 ret = el_wget(el, op, va_arg(ap, int *)); 294 break; 295 296 case EL_GETTC: { 297 char *argv[20]; 298 static char gettc[] = "gettc"; 299 int i; 300 for (i = 1; i < (int)__arraycount(argv); ++i) 301 if ((argv[i] = va_arg(ap, char *)) == NULL) 302 break; 303 argv[0] = gettc; 304 ret = term_gettc(el, i, argv); 305 break; 306 } 307 308 /* XXX: do we need to change el_rfunc_t? */ 309 case EL_GETCFN: /* el_rfunc_t */ 310 ret = el_wget(el, op, va_arg(ap, el_rfunc_t *)); 311 break; 312 313 case EL_CLIENTDATA: /* void ** */ 314 ret = el_wget(el, op, va_arg(ap, void **)); 315 break; 316 317 case EL_GETFP: { /* int, FILE ** */ 318 int what = va_arg(ap, int); 319 FILE **fpp = va_arg(ap, FILE **); 320 ret = el_wget(el, op, what, fpp); 321 break; 322 } 323 324 default: 325 ret = -1; 326 break; 327 } 328 329 va_end(ap); 330 return ret; 331 } 332 333 334 const LineInfo * 335 el_line(EditLine *el) 336 { 337 const LineInfoW *winfo = el_wline(el); 338 LineInfo *info = &el->el_lgcylinfo; 339 340 info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv); 341 info->cursor = info->buffer + (winfo->cursor - winfo->buffer); 342 info->lastchar = info->buffer + (winfo->lastchar - winfo->buffer); 343 return info; 344 } 345 346 347 int 348 el_insertstr(EditLine *el, const char *str) 349 { 350 return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv)); 351 } 352
Indexes created Wed Sep 24 22:09:59 GMT 2025