1 /* $OpenBSD: eln.c,v 1.4 2014/05/20 11:59:03 nicm Exp $ */ 2 /* $NetBSD: eln.c,v 1.9 2010/11/04 13:53:12 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 #include "config.h" 37 38 #include "histedit.h" 39 #include "el.h" 40 #include "read.h" 41 #include <stdarg.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 45 public int 46 el_getc(EditLine *el, char *cp) 47 { 48 int num_read; 49 wchar_t wc = 0; 50 51 if (!(el->el_flags & CHARSET_IS_UTF8)) 52 el->el_flags |= IGNORE_EXTCHARS; 53 num_read = el_wgetc (el, &wc); 54 if (!(el->el_flags & CHARSET_IS_UTF8)) 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_RESIZE: { 120 el_zfunc_t p = va_arg(ap, el_zfunc_t); 121 void *arg = va_arg(ap, void *); 122 ret = ch_resizefun(el, p, arg); 123 break; 124 } 125 126 case EL_TERMINAL: /* const char * */ 127 ret = el_wset(el, op, va_arg(ap, char *)); 128 break; 129 130 case EL_EDITOR: /* const wchar_t * */ 131 ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *), 132 &el->el_lgcyconv)); 133 break; 134 135 case EL_SIGNAL: /* int */ 136 case EL_EDITMODE: 137 case EL_UNBUFFERED: 138 case EL_PREP_TERM: 139 ret = el_wset(el, op, va_arg(ap, int)); 140 break; 141 142 case EL_BIND: /* const char * list -> const wchar_t * list */ 143 case EL_TELLTC: 144 case EL_SETTC: 145 case EL_ECHOTC: 146 case EL_SETTY: { 147 const char *argv[21]; 148 int i; 149 const wchar_t **wargv; 150 for (i = 1; i < (int)__arraycount(argv) - 1; ++i) 151 if ((argv[i] = va_arg(ap, char *)) == NULL) 152 break; 153 argv[0] = argv[i] = NULL; 154 wargv = (const wchar_t **) 155 ct_decode_argv(i + 1, argv, &el->el_lgcyconv); 156 if (!wargv) { 157 ret = -1; 158 goto out; 159 } 160 /* 161 * AFAIK we can't portably pass through our new wargv to 162 * el_wset(), so we have to reimplement the body of 163 * el_wset() for these ops. 164 */ 165 switch (op) { 166 case EL_BIND: 167 wargv[0] = STR("bind"); 168 ret = map_bind(el, i, wargv); 169 break; 170 case EL_TELLTC: 171 wargv[0] = STR("telltc"); 172 ret = term_telltc(el, i, wargv); 173 break; 174 case EL_SETTC: 175 wargv[0] = STR("settc"); 176 ret = term_settc(el, i, wargv); 177 break; 178 case EL_ECHOTC: 179 wargv[0] = STR("echotc"); 180 ret = term_echotc(el, i, wargv); 181 break; 182 case EL_SETTY: 183 wargv[0] = STR("setty"); 184 ret = tty_stty(el, i, wargv); 185 break; 186 default: 187 ret = -1; 188 } 189 ct_free_argv(wargv); 190 break; 191 } 192 193 /* XXX: do we need to change el_func_t too? */ 194 case EL_ADDFN: { /* const char *, const char *, el_func_t */ 195 const char *args[2]; 196 el_func_t func; 197 wchar_t **wargv; 198 199 args[0] = va_arg(ap, const char *); 200 args[1] = va_arg(ap, const char *); 201 func = va_arg(ap, el_func_t); 202 203 wargv = ct_decode_argv(2, args, &el->el_lgcyconv); 204 if (!wargv) { 205 ret = -1; 206 goto out; 207 } 208 /* XXX: The two strdup's leak */ 209 ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]), 210 func); 211 ct_free_argv(wargv); 212 break; 213 } 214 case EL_HIST: { /* hist_fun_t, const char * */ 215 hist_fun_t fun = va_arg(ap, hist_fun_t); 216 ptr_t ptr = va_arg(ap, ptr_t); 217 ret = hist_set(el, fun, ptr); 218 el->el_flags |= NARROW_HISTORY; 219 break; 220 } 221 /* XXX: do we need to change el_rfunc_t? */ 222 case EL_GETCFN: /* el_rfunc_t */ 223 ret = el_wset(el, op, va_arg(ap, el_rfunc_t)); 224 el->el_flags |= NARROW_READ; 225 break; 226 case EL_CLIENTDATA: /* void * */ 227 ret = el_wset(el, op, va_arg(ap, void *)); 228 break; 229 case EL_SETFP: { /* int, FILE * */ 230 int what = va_arg(ap, int); 231 FILE *fp = va_arg(ap, FILE *); 232 ret = el_wset(el, op, what, fp); 233 break; 234 } 235 case EL_PROMPT_ESC: /* el_pfunc_t, char */ 236 case EL_RPROMPT_ESC: { 237 el_pfunc_t p = va_arg(ap, el_pfunc_t); 238 char c = va_arg(ap, int); 239 ret = prompt_set(el, p, c, op, 0); 240 break; 241 } 242 default: 243 ret = -1; 244 break; 245 } 246 247 out: 248 va_end(ap); 249 return ret; 250 } 251 252 253 public int 254 el_get(EditLine *el, int op, ...) 255 { 256 va_list ap; 257 int ret; 258 259 if (!el) 260 return -1; 261 262 va_start(ap, op); 263 264 switch (op) { 265 case EL_PROMPT: /* el_pfunc_t * */ 266 case EL_RPROMPT: { 267 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 268 ret = prompt_get(el, p, 0, op); 269 break; 270 } 271 272 case EL_PROMPT_ESC: /* el_pfunc_t *, char **/ 273 case EL_RPROMPT_ESC: { 274 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 275 char *c = va_arg(ap, char *); 276 wchar_t wc = 0; 277 ret = prompt_get(el, p, &wc, op); 278 *c = (unsigned char)wc; 279 break; 280 } 281 282 case EL_EDITOR: { 283 const char **p = va_arg(ap, const char **); 284 const wchar_t *pw; 285 ret = el_wget(el, op, &pw); 286 *p = ct_encode_string(pw, &el->el_lgcyconv); 287 if (!el->el_lgcyconv.csize) 288 ret = -1; 289 break; 290 } 291 292 case EL_TERMINAL: /* const char ** */ 293 ret = el_wget(el, op, va_arg(ap, const char **)); 294 break; 295 296 case EL_SIGNAL: /* int * */ 297 case EL_EDITMODE: 298 case EL_UNBUFFERED: 299 case EL_PREP_TERM: 300 ret = el_wget(el, op, va_arg(ap, int *)); 301 break; 302 303 case EL_GETTC: { 304 char *argv[20]; 305 static char gettc[] = "gettc"; 306 int i; 307 for (i = 1; i < (int)__arraycount(argv); ++i) 308 if ((argv[i] = va_arg(ap, char *)) == NULL) 309 break; 310 argv[0] = gettc; 311 ret = term_gettc(el, i, argv); 312 break; 313 } 314 315 /* XXX: do we need to change el_rfunc_t? */ 316 case EL_GETCFN: /* el_rfunc_t */ 317 ret = el_wget(el, op, va_arg(ap, el_rfunc_t *)); 318 break; 319 320 case EL_CLIENTDATA: /* void ** */ 321 ret = el_wget(el, op, va_arg(ap, void **)); 322 break; 323 324 case EL_GETFP: { /* int, FILE ** */ 325 int what = va_arg(ap, int); 326 FILE **fpp = va_arg(ap, FILE **); 327 ret = el_wget(el, op, what, fpp); 328 break; 329 } 330 331 default: 332 ret = -1; 333 break; 334 } 335 336 va_end(ap); 337 return ret; 338 } 339 340 341 const LineInfo * 342 el_line(EditLine *el) 343 { 344 const LineInfoW *winfo = el_wline(el); 345 LineInfo *info = &el->el_lgcylinfo; 346 size_t offset; 347 const Char *p; 348 349 info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv); 350 351 offset = 0; 352 for (p = winfo->buffer; p < winfo->cursor; p++) 353 offset += ct_enc_width(*p); 354 info->cursor = info->buffer + offset; 355 356 offset = 0; 357 for (p = winfo->buffer; p < winfo->lastchar; p++) 358 offset += ct_enc_width(*p); 359 info->lastchar = info->buffer + offset; 360 361 return info; 362 } 363 364 365 int 366 el_insertstr(EditLine *el, const char *str) 367 { 368 return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv)); 369 } 370