1 /* $OpenBSD: eln.c,v 1.1 2010/06/30 00:05:35 nicm Exp $ */ 2 /* $NetBSD: eln.c,v 1.7 2010/04/15 00:52:48 christos Exp $ */ 3 4 /*- 5 * Copyright (c) 2009 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the NetBSD 19 * Foundation, Inc. and its contributors. 20 * 4. Neither the name of The NetBSD Foundation nor the names of its 21 * contributors may be used to endorse or promote products derived 22 * from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #include "config.h" 38 39 #include "histedit.h" 40 #include "el.h" 41 #include "read.h" 42 #include <stdarg.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 46 public int 47 el_getc(EditLine *el, char *cp) 48 { 49 int num_read; 50 wchar_t wc = 0; 51 52 if (!(el->el_flags & CHARSET_IS_UTF8)) 53 el->el_flags |= IGNORE_EXTCHARS; 54 num_read = el_wgetc (el, &wc); 55 if (!(el->el_flags & CHARSET_IS_UTF8)) 56 el->el_flags &= ~IGNORE_EXTCHARS; 57 58 if (num_read > 0) 59 *cp = (unsigned char)wc; 60 return num_read; 61 } 62 63 64 public void 65 el_push(EditLine *el, const char *str) 66 { 67 /* Using multibyte->wide string decoding works fine under single-byte 68 * character sets too, and Does The Right Thing. */ 69 el_wpush(el, ct_decode_string(str, &el->el_lgcyconv)); 70 } 71 72 73 public const char * 74 el_gets(EditLine *el, int *nread) 75 { 76 const wchar_t *tmp; 77 78 el->el_flags |= IGNORE_EXTCHARS; 79 tmp = el_wgets(el, nread); 80 el->el_flags &= ~IGNORE_EXTCHARS; 81 return ct_encode_string(tmp, &el->el_lgcyconv); 82 } 83 84 85 public int 86 el_parse(EditLine *el, int argc, const char *argv[]) 87 { 88 int ret; 89 const wchar_t **wargv; 90 91 wargv = (const wchar_t **) 92 ct_decode_argv(argc, argv, &el->el_lgcyconv); 93 if (!wargv) 94 return -1; 95 ret = el_wparse(el, argc, wargv); 96 ct_free_argv(wargv); 97 98 return ret; 99 } 100 101 102 public int 103 el_set(EditLine *el, int op, ...) 104 { 105 va_list ap; 106 int ret; 107 108 if (!el) 109 return -1; 110 va_start(ap, op); 111 112 switch (op) { 113 case EL_PROMPT: /* el_pfunc_t */ 114 case EL_RPROMPT: { 115 el_pfunc_t p = va_arg(ap, el_pfunc_t); 116 ret = prompt_set(el, p, 0, op, 0); 117 break; 118 } 119 120 case EL_TERMINAL: /* const char * */ 121 ret = el_wset(el, op, va_arg(ap, char *)); 122 break; 123 124 case EL_EDITOR: /* const wchar_t * */ 125 ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *), 126 &el->el_lgcyconv)); 127 break; 128 129 case EL_SIGNAL: /* int */ 130 case EL_EDITMODE: 131 case EL_UNBUFFERED: 132 case EL_PREP_TERM: 133 ret = el_wset(el, op, va_arg(ap, int)); 134 break; 135 136 case EL_BIND: /* const char * list -> const wchar_t * list */ 137 case EL_TELLTC: 138 case EL_SETTC: 139 case EL_ECHOTC: 140 case EL_SETTY: { 141 const char *argv[20]; 142 int i; 143 const wchar_t **wargv; 144 for (i = 1; i < (int)__arraycount(argv); ++i) 145 if ((argv[i] = va_arg(ap, char *)) == NULL) 146 break; 147 argv[0] = NULL; 148 wargv = (const wchar_t **) 149 ct_decode_argv(i, argv, &el->el_lgcyconv); 150 if (!wargv) { 151 ret = -1; 152 goto out; 153 } 154 /* 155 * AFAIK we can't portably pass through our new wargv to 156 * el_wset(), so we have to reimplement the body of 157 * el_wset() for these ops. 158 */ 159 switch (op) { 160 case EL_BIND: 161 wargv[0] = STR("bind"); 162 ret = map_bind(el, i, wargv); 163 break; 164 case EL_TELLTC: 165 wargv[0] = STR("telltc"); 166 ret = term_telltc(el, i, wargv); 167 break; 168 case EL_SETTC: 169 wargv[0] = STR("settc"); 170 ret = term_settc(el, i, wargv); 171 break; 172 case EL_ECHOTC: 173 wargv[0] = STR("echotc"); 174 ret = term_echotc(el, i, wargv); 175 break; 176 case EL_SETTY: 177 wargv[0] = STR("setty"); 178 ret = tty_stty(el, i, wargv); 179 break; 180 default: 181 ret = -1; 182 } 183 ct_free_argv(wargv); 184 break; 185 } 186 187 /* XXX: do we need to change el_func_t too? */ 188 case EL_ADDFN: { /* const char *, const char *, el_func_t */ 189 const char *args[2]; 190 el_func_t func; 191 wchar_t **wargv; 192 193 args[0] = va_arg(ap, const char *); 194 args[1] = va_arg(ap, const char *); 195 func = va_arg(ap, el_func_t); 196 197 wargv = ct_decode_argv(2, args, &el->el_lgcyconv); 198 if (!wargv) { 199 ret = -1; 200 goto out; 201 } 202 // XXX: The two strdup's leak 203 ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]), 204 func); 205 ct_free_argv(wargv); 206 break; 207 } 208 case EL_HIST: { /* hist_fun_t, const char * */ 209 hist_fun_t fun = va_arg(ap, hist_fun_t); 210 ptr_t ptr = va_arg(ap, ptr_t); 211 ret = hist_set(el, fun, ptr); 212 if (!(el->el_flags & CHARSET_IS_UTF8)) 213 el->el_flags |= NARROW_HISTORY; 214 break; 215 } 216 /* XXX: do we need to change el_rfunc_t? */ 217 case EL_GETCFN: /* el_rfunc_t */ 218 ret = el_wset(el, op, va_arg(ap, el_rfunc_t)); 219 el->el_flags |= NARROW_READ; 220 break; 221 case EL_CLIENTDATA: /* void * */ 222 ret = el_wset(el, op, va_arg(ap, void *)); 223 break; 224 case EL_SETFP: { /* int, FILE * */ 225 int what = va_arg(ap, int); 226 FILE *fp = va_arg(ap, FILE *); 227 ret = el_wset(el, op, what, fp); 228 break; 229 } 230 case EL_PROMPT_ESC: /* el_pfunc_t, char */ 231 case EL_RPROMPT_ESC: { 232 el_pfunc_t p = va_arg(ap, el_pfunc_t); 233 char c = va_arg(ap, int); 234 ret = prompt_set(el, p, c, op, 0); 235 break; 236 } 237 default: 238 ret = -1; 239 break; 240 } 241 242 out: 243 va_end(ap); 244 return ret; 245 } 246 247 248 public int 249 el_get(EditLine *el, int op, ...) 250 { 251 va_list ap; 252 int ret; 253 254 if (!el) 255 return -1; 256 257 va_start(ap, op); 258 259 switch (op) { 260 case EL_PROMPT: /* el_pfunc_t * */ 261 case EL_RPROMPT: { 262 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 263 ret = prompt_get(el, p, 0, op); 264 break; 265 } 266 267 case EL_PROMPT_ESC: /* el_pfunc_t *, char **/ 268 case EL_RPROMPT_ESC: { 269 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 270 char *c = va_arg(ap, char *); 271 wchar_t wc; 272 ret = prompt_get(el, p, &wc, op); 273 *c = (unsigned char)wc; 274 break; 275 } 276 277 case EL_EDITOR: { 278 const char **p = va_arg(ap, const char **); 279 const wchar_t *pw; 280 ret = el_wget(el, op, &pw); 281 *p = ct_encode_string(pw, &el->el_lgcyconv); 282 if (!el->el_lgcyconv.csize) 283 ret = -1; 284 break; 285 } 286 287 case EL_TERMINAL: /* const char ** */ 288 ret = el_wget(el, op, va_arg(ap, const char **)); 289 break; 290 291 case EL_SIGNAL: /* int * */ 292 case EL_EDITMODE: 293 case EL_UNBUFFERED: 294 case EL_PREP_TERM: 295 ret = el_wget(el, op, va_arg(ap, int *)); 296 break; 297 298 case EL_GETTC: { 299 char *argv[20]; 300 static char gettc[] = "gettc"; 301 int i; 302 for (i = 1; i < (int)__arraycount(argv); ++i) 303 if ((argv[i] = va_arg(ap, char *)) == NULL) 304 break; 305 argv[0] = gettc; 306 ret = term_gettc(el, i, argv); 307 break; 308 } 309 310 /* XXX: do we need to change el_rfunc_t? */ 311 case EL_GETCFN: /* el_rfunc_t */ 312 ret = el_wget(el, op, va_arg(ap, el_rfunc_t *)); 313 break; 314 315 case EL_CLIENTDATA: /* void ** */ 316 ret = el_wget(el, op, va_arg(ap, void **)); 317 break; 318 319 case EL_GETFP: { /* int, FILE ** */ 320 int what = va_arg(ap, int); 321 FILE **fpp = va_arg(ap, FILE **); 322 ret = el_wget(el, op, what, fpp); 323 break; 324 } 325 326 default: 327 ret = -1; 328 break; 329 } 330 331 va_end(ap); 332 return ret; 333 } 334 335 336 const LineInfo * 337 el_line(EditLine *el) 338 { 339 const LineInfoW *winfo = el_wline(el); 340 LineInfo *info = &el->el_lgcylinfo; 341 size_t offset; 342 const Char *p; 343 344 info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv); 345 346 offset = 0; 347 for (p = winfo->buffer; p < winfo->cursor; p++) 348 offset += ct_enc_width(*p); 349 info->cursor = info->buffer + offset; 350 351 offset = 0; 352 for (p = winfo->buffer; p < winfo->lastchar; p++) 353 offset += ct_enc_width(*p); 354 info->lastchar = info->buffer + offset; 355 356 return info; 357 } 358 359 360 int 361 el_insertstr(EditLine *el, const char *str) 362 { 363 return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv)); 364 } 365