eln.c revision 1.2
1 /* $NetBSD: eln.c,v 1.2 2009/12/30 23:54:52 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 1.2 2009/12/30 23:54:52 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 el->el_flags |= IGNORE_EXTCHARS; 76 el_wgets(el, nread); 77 el->el_flags &= ~IGNORE_EXTCHARS; 78 return ct_encode_string(el->el_line.buffer, &el->el_lgcyconv); 79 } 80 81 82 public int 83 el_parse(EditLine *el, int argc, const char *argv[]) 84 { 85 int ret; 86 const wchar_t **wargv; 87 88 wargv = (const wchar_t **) 89 ct_decode_argv(argc, argv, &el->el_lgcyconv); 90 if (!wargv) 91 return -1; 92 ret = el_wparse(el, argc, wargv); 93 ct_free_argv(wargv); 94 95 return ret; 96 } 97 98 99 public int 100 el_set(EditLine *el, int op, ...) 101 { 102 va_list ap; 103 int ret; 104 105 if (!el) 106 return -1; 107 va_start(ap, op); 108 109 switch (op) { 110 case EL_PROMPT: /* el_pfunc_t */ 111 case EL_RPROMPT: { 112 el_pfunc_t p = va_arg(ap, el_pfunc_t); 113 ret = prompt_set(el, p, 0, op, 0); 114 break; 115 } 116 117 case EL_TERMINAL: /* const char * */ 118 ret = el_wset(el, op, va_arg(ap, char *)); 119 break; 120 121 case EL_SIGNAL: /* int */ 122 case EL_EDITMODE: 123 case EL_UNBUFFERED: 124 case EL_PREP_TERM: 125 ret = el_wset(el, op, va_arg(ap, int)); 126 break; 127 128 case EL_BIND: /* const char * list -> const wchar_t * list */ 129 case EL_TELLTC: 130 case EL_SETTC: 131 case EL_ECHOTC: 132 case EL_SETTY: { 133 const char *argv[20]; 134 int i; 135 const wchar_t **wargv; 136 for (i = 1; i < (int)__arraycount(argv); ++i) 137 if ((argv[i] = va_arg(ap, char *)) == NULL) 138 break; 139 argv[0] = NULL; 140 wargv = (const wchar_t **) 141 ct_decode_argv(i, argv, &el->el_lgcyconv); 142 if (!wargv) { 143 ret = -1; 144 goto out; 145 } 146 /* 147 * AFAIK we can't portably pass through our new wargv to 148 * el_wset(), so we have to reimplement the body of 149 * el_wset() for these ops. 150 */ 151 switch (op) { 152 case EL_BIND: 153 wargv[0] = STR("bind"); 154 ret = map_bind(el, i, wargv); 155 break; 156 case EL_TELLTC: 157 wargv[0] = STR("telltc"); 158 ret = term_telltc(el, i, wargv); 159 break; 160 case EL_SETTC: 161 wargv[0] = STR("settc"); 162 ret = term_settc(el, i, wargv); 163 break; 164 case EL_ECHOTC: 165 wargv[0] = STR("echotc"); 166 ret = term_echotc(el, i, wargv); 167 break; 168 case EL_SETTY: 169 wargv[0] = STR("setty"); 170 ret = tty_stty(el, i, wargv); 171 break; 172 default: 173 ret = -1; 174 } 175 ct_free_argv(wargv); 176 break; 177 } 178 179 /* XXX: do we need to change el_func_t too? */ 180 case EL_ADDFN: { /* const char *, const char *, el_func_t */ 181 const char *args[2]; 182 el_func_t func; 183 wchar_t **wargv; 184 185 args[0] = va_arg(ap, const char *); 186 args[1] = va_arg(ap, const char *); 187 func = va_arg(ap, el_func_t); 188 189 wargv = ct_decode_argv(2, args, &el->el_lgcyconv); 190 if (!wargv) { 191 ret = -1; 192 goto out; 193 } 194 ret = el_wset(el, op, wargv[0], wargv[1], func); 195 ct_free_argv(wargv); 196 break; 197 } 198 case EL_HIST: { /* hist_fun_t, const char * */ 199 hist_fun_t fun = va_arg(ap, hist_fun_t); 200 ptr_t ptr = va_arg(ap, ptr_t); 201 ret = hist_set(el, fun, ptr); 202 el->el_flags |= NARROW_HISTORY; 203 break; 204 } 205 /* XXX: do we need to change el_rfunc_t? */ 206 case EL_GETCFN: /* el_rfunc_t */ 207 ret = el_wset(el, op, va_arg(ap, el_rfunc_t)); 208 break; 209 case EL_CLIENTDATA: /* void * */ 210 ret = el_wset(el, op, va_arg(ap, void *)); 211 break; 212 case EL_SETFP: { /* int, FILE * */ 213 int what = va_arg(ap, int); 214 FILE *fp = va_arg(ap, FILE *); 215 ret = el_wset(el, op, what, fp); 216 break; 217 } 218 case EL_PROMPT_ESC: /* el_pfunc_t, char */ 219 case EL_RPROMPT_ESC: { 220 el_pfunc_t p = va_arg(ap, el_pfunc_t); 221 char c = va_arg(ap, int); 222 ret = prompt_set(el, p, c, op, 0); 223 break; 224 } 225 default: 226 ret = -1; 227 break; 228 } 229 230 out: 231 va_end(ap); 232 return ret; 233 } 234 235 236 public int 237 el_get(EditLine *el, int op, ...) 238 { 239 va_list ap; 240 int ret; 241 242 if (!el) 243 return -1; 244 245 va_start(ap, op); 246 247 switch (op) { 248 case EL_PROMPT: /* el_pfunc_t * */ 249 case EL_RPROMPT: { 250 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 251 ret = prompt_get(el, p, 0, op); 252 break; 253 } 254 255 case EL_PROMPT_ESC: /* el_pfunc_t *, char **/ 256 case EL_RPROMPT_ESC: { 257 el_pfunc_t *p = va_arg(ap, el_pfunc_t *); 258 char *c = va_arg(ap, char *); 259 wchar_t wc; 260 ret = prompt_get(el, p, &wc, op); 261 *c = (unsigned char)wc; 262 break; 263 } 264 265 case EL_EDITOR: { 266 const char **p = va_arg(ap, const char **); 267 const wchar_t *pw; 268 ret = el_wget(el, op, &pw); 269 *p = ct_encode_string(pw, &el->el_lgcyconv); 270 if (!el->el_lgcyconv.csize) 271 ret = -1; 272 break; 273 } 274 275 case EL_TERMINAL: /* const char ** */ 276 ret = el_wget(el, op, va_arg(ap, const char **)); 277 break; 278 279 case EL_SIGNAL: /* int * */ 280 case EL_EDITMODE: 281 case EL_UNBUFFERED: 282 case EL_PREP_TERM: 283 ret = el_wget(el, op, va_arg(ap, int *)); 284 break; 285 286 case EL_GETTC: { 287 char *argv[20]; 288 static char gettc[] = "gettc"; 289 int i; 290 for (i = 1; i < (int)__arraycount(argv); ++i) 291 if ((argv[i] = va_arg(ap, char *)) == NULL) 292 break; 293 argv[0] = gettc; 294 ret = term_gettc(el, i, argv); 295 break; 296 } 297 298 /* XXX: do we need to change el_rfunc_t? */ 299 case EL_GETCFN: /* el_rfunc_t */ 300 ret = el_wget(el, op, va_arg(ap, el_rfunc_t *)); 301 break; 302 303 case EL_CLIENTDATA: /* void ** */ 304 ret = el_wget(el, op, va_arg(ap, void **)); 305 break; 306 307 case EL_GETFP: { /* int, FILE ** */ 308 int what = va_arg(ap, int); 309 FILE **fpp = va_arg(ap, FILE **); 310 ret = el_wget(el, op, what, fpp); 311 break; 312 } 313 314 default: 315 ret = -1; 316 break; 317 } 318 319 va_end(ap); 320 return ret; 321 } 322 323 324 const LineInfo * 325 el_line(EditLine *el) 326 { 327 const LineInfoW *winfo = el_wline(el); 328 LineInfo *info = &el->el_lgcylinfo; 329 330 info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv); 331 info->cursor = info->buffer + (winfo->cursor - winfo->buffer); 332 info->lastchar = info->buffer + (winfo->lastchar - winfo->buffer); 333 return info; 334 } 335 336 337 int 338 el_insertstr(EditLine *el, const char *str) 339 { 340 return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv)); 341 } 342
Indexes created Tue Sep 23 14:10:03 GMT 2025