Todd Fiala | 12e2168 | 2013-10-30 10:02:25 -0700 | [diff] [blame] | 1 | /* $NetBSD: eln.c,v 1.14 2012/03/11 21:15:25 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 1.14 2012/03/11 21:15:25 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 | 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 | el->el_flags |= IGNORE_EXTCHARS; |
| 80 | tmp = el_wgets(el, nread); |
| 81 | el->el_flags &= ~IGNORE_EXTCHARS; |
| 82 | return ct_encode_string(tmp, &el->el_lgcyconv); |
| 83 | } |
| 84 | |
| 85 | |
| 86 | public int |
| 87 | el_parse(EditLine *el, int argc, const char *argv[]) |
| 88 | { |
| 89 | int ret; |
| 90 | const wchar_t **wargv; |
| 91 | |
| 92 | wargv = (const wchar_t **) |
| 93 | ct_decode_argv(argc, argv, &el->el_lgcyconv); |
| 94 | if (!wargv) |
| 95 | return -1; |
| 96 | ret = el_wparse(el, argc, wargv); |
| 97 | ct_free_argv(wargv); |
| 98 | |
| 99 | return ret; |
| 100 | } |
| 101 | |
| 102 | |
| 103 | public int |
| 104 | el_set(EditLine *el, int op, ...) |
| 105 | { |
| 106 | va_list ap; |
| 107 | int ret; |
| 108 | |
| 109 | if (!el) |
| 110 | return -1; |
| 111 | va_start(ap, op); |
| 112 | |
| 113 | switch (op) { |
| 114 | case EL_PROMPT: /* el_pfunc_t */ |
| 115 | case EL_RPROMPT: { |
| 116 | el_pfunc_t p = va_arg(ap, el_pfunc_t); |
| 117 | ret = prompt_set(el, p, 0, op, 0); |
| 118 | break; |
| 119 | } |
| 120 | |
| 121 | case EL_RESIZE: { |
| 122 | el_zfunc_t p = va_arg(ap, el_zfunc_t); |
| 123 | void *arg = va_arg(ap, void *); |
| 124 | ret = ch_resizefun(el, p, arg); |
| 125 | break; |
| 126 | } |
| 127 | |
| 128 | case EL_TERMINAL: /* const char * */ |
| 129 | ret = el_wset(el, op, va_arg(ap, char *)); |
| 130 | break; |
| 131 | |
| 132 | case EL_EDITOR: /* const wchar_t * */ |
| 133 | ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *), |
| 134 | &el->el_lgcyconv)); |
| 135 | break; |
| 136 | |
| 137 | case EL_SIGNAL: /* int */ |
| 138 | case EL_EDITMODE: |
| 139 | case EL_UNBUFFERED: |
| 140 | case EL_PREP_TERM: |
| 141 | ret = el_wset(el, op, va_arg(ap, int)); |
| 142 | break; |
| 143 | |
| 144 | case EL_BIND: /* const char * list -> const wchar_t * list */ |
| 145 | case EL_TELLTC: |
| 146 | case EL_SETTC: |
| 147 | case EL_ECHOTC: |
| 148 | case EL_SETTY: { |
| 149 | const char *argv[20]; |
| 150 | int i; |
| 151 | const wchar_t **wargv; |
| 152 | for (i = 1; i < (int)__arraycount(argv); ++i) |
| 153 | if ((argv[i] = va_arg(ap, char *)) == NULL) |
| 154 | break; |
| 155 | argv[0] = NULL; |
| 156 | wargv = (const wchar_t **) |
| 157 | ct_decode_argv(i + 1, argv, &el->el_lgcyconv); |
| 158 | if (!wargv) { |
| 159 | ret = -1; |
| 160 | goto out; |
| 161 | } |
| 162 | /* |
| 163 | * AFAIK we can't portably pass through our new wargv to |
| 164 | * el_wset(), so we have to reimplement the body of |
| 165 | * el_wset() for these ops. |
| 166 | */ |
| 167 | switch (op) { |
| 168 | case EL_BIND: |
| 169 | wargv[0] = STR("bind"); |
| 170 | ret = map_bind(el, i, wargv); |
| 171 | break; |
| 172 | case EL_TELLTC: |
| 173 | wargv[0] = STR("telltc"); |
| 174 | ret = terminal_telltc(el, i, wargv); |
| 175 | break; |
| 176 | case EL_SETTC: |
| 177 | wargv[0] = STR("settc"); |
| 178 | ret = terminal_settc(el, i, wargv); |
| 179 | break; |
| 180 | case EL_ECHOTC: |
| 181 | wargv[0] = STR("echotc"); |
| 182 | ret = terminal_echotc(el, i, wargv); |
| 183 | break; |
| 184 | case EL_SETTY: |
| 185 | wargv[0] = STR("setty"); |
| 186 | ret = tty_stty(el, i, wargv); |
| 187 | break; |
| 188 | default: |
| 189 | ret = -1; |
| 190 | } |
| 191 | ct_free_argv(wargv); |
| 192 | break; |
| 193 | } |
| 194 | |
| 195 | /* XXX: do we need to change el_func_t too? */ |
| 196 | case EL_ADDFN: { /* const char *, const char *, el_func_t */ |
| 197 | const char *args[2]; |
| 198 | el_func_t func; |
| 199 | wchar_t **wargv; |
| 200 | |
| 201 | args[0] = va_arg(ap, const char *); |
| 202 | args[1] = va_arg(ap, const char *); |
| 203 | func = va_arg(ap, el_func_t); |
| 204 | |
| 205 | wargv = ct_decode_argv(2, args, &el->el_lgcyconv); |
| 206 | if (!wargv) { |
| 207 | ret = -1; |
| 208 | goto out; |
| 209 | } |
| 210 | // XXX: The two strdup's leak |
| 211 | ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]), |
| 212 | func); |
| 213 | ct_free_argv(wargv); |
| 214 | break; |
| 215 | } |
| 216 | case EL_HIST: { /* hist_fun_t, const char * */ |
| 217 | hist_fun_t fun = va_arg(ap, hist_fun_t); |
| 218 | void *ptr = va_arg(ap, void *); |
| 219 | ret = hist_set(el, fun, ptr); |
| 220 | el->el_flags |= NARROW_HISTORY; |
| 221 | break; |
| 222 | } |
| 223 | /* XXX: do we need to change el_rfunc_t? */ |
| 224 | case EL_GETCFN: /* el_rfunc_t */ |
| 225 | ret = el_wset(el, op, va_arg(ap, el_rfunc_t)); |
| 226 | el->el_flags |= NARROW_READ; |
| 227 | break; |
| 228 | case EL_CLIENTDATA: /* void * */ |
| 229 | ret = el_wset(el, op, va_arg(ap, void *)); |
| 230 | break; |
| 231 | case EL_SETFP: { /* int, FILE * */ |
| 232 | int what = va_arg(ap, int); |
| 233 | FILE *fp = va_arg(ap, FILE *); |
| 234 | ret = el_wset(el, op, what, fp); |
| 235 | break; |
| 236 | } |
| 237 | case EL_PROMPT_ESC: /* el_pfunc_t, char */ |
| 238 | case EL_RPROMPT_ESC: { |
| 239 | el_pfunc_t p = va_arg(ap, el_pfunc_t); |
| 240 | char c = (char)va_arg(ap, int); |
| 241 | ret = prompt_set(el, p, c, op, 0); |
| 242 | break; |
| 243 | } |
| 244 | default: |
| 245 | ret = -1; |
| 246 | break; |
| 247 | } |
| 248 | |
| 249 | out: |
| 250 | va_end(ap); |
| 251 | return ret; |
| 252 | } |
| 253 | |
| 254 | |
| 255 | public int |
| 256 | el_get(EditLine *el, int op, ...) |
| 257 | { |
| 258 | va_list ap; |
| 259 | int ret; |
| 260 | |
| 261 | if (!el) |
| 262 | return -1; |
| 263 | |
| 264 | va_start(ap, op); |
| 265 | |
| 266 | switch (op) { |
| 267 | case EL_PROMPT: /* el_pfunc_t * */ |
| 268 | case EL_RPROMPT: { |
| 269 | el_pfunc_t *p = va_arg(ap, el_pfunc_t *); |
| 270 | ret = prompt_get(el, p, 0, op); |
| 271 | break; |
| 272 | } |
| 273 | |
| 274 | case EL_PROMPT_ESC: /* el_pfunc_t *, char **/ |
| 275 | case EL_RPROMPT_ESC: { |
| 276 | el_pfunc_t *p = va_arg(ap, el_pfunc_t *); |
| 277 | char *c = va_arg(ap, char *); |
| 278 | wchar_t wc = 0; |
| 279 | ret = prompt_get(el, p, &wc, op); |
| 280 | *c = (char)wc; |
| 281 | break; |
| 282 | } |
| 283 | |
| 284 | case EL_EDITOR: { |
| 285 | const char **p = va_arg(ap, const char **); |
| 286 | const wchar_t *pw; |
| 287 | ret = el_wget(el, op, &pw); |
| 288 | *p = ct_encode_string(pw, &el->el_lgcyconv); |
| 289 | if (!el->el_lgcyconv.csize) |
| 290 | ret = -1; |
| 291 | break; |
| 292 | } |
| 293 | |
| 294 | case EL_TERMINAL: /* const char ** */ |
| 295 | ret = el_wget(el, op, va_arg(ap, const char **)); |
| 296 | break; |
| 297 | |
| 298 | case EL_SIGNAL: /* int * */ |
| 299 | case EL_EDITMODE: |
| 300 | case EL_UNBUFFERED: |
| 301 | case EL_PREP_TERM: |
| 302 | ret = el_wget(el, op, va_arg(ap, int *)); |
| 303 | break; |
| 304 | |
| 305 | case EL_GETTC: { |
| 306 | char *argv[20]; |
| 307 | static char gettc[] = "gettc"; |
| 308 | int i; |
| 309 | for (i = 1; i < (int)__arraycount(argv); ++i) |
| 310 | if ((argv[i] = va_arg(ap, char *)) == NULL) |
| 311 | break; |
| 312 | argv[0] = gettc; |
| 313 | ret = terminal_gettc(el, i, argv); |
| 314 | break; |
| 315 | } |
| 316 | |
| 317 | /* XXX: do we need to change el_rfunc_t? */ |
| 318 | case EL_GETCFN: /* el_rfunc_t */ |
| 319 | ret = el_wget(el, op, va_arg(ap, el_rfunc_t *)); |
| 320 | break; |
| 321 | |
| 322 | case EL_CLIENTDATA: /* void ** */ |
| 323 | ret = el_wget(el, op, va_arg(ap, void **)); |
| 324 | break; |
| 325 | |
| 326 | case EL_GETFP: { /* int, FILE ** */ |
| 327 | int what = va_arg(ap, int); |
| 328 | FILE **fpp = va_arg(ap, FILE **); |
| 329 | ret = el_wget(el, op, what, fpp); |
| 330 | break; |
| 331 | } |
| 332 | |
| 333 | default: |
| 334 | ret = -1; |
| 335 | break; |
| 336 | } |
| 337 | |
| 338 | va_end(ap); |
| 339 | return ret; |
| 340 | } |
| 341 | |
| 342 | |
| 343 | const LineInfo * |
| 344 | el_line(EditLine *el) |
| 345 | { |
| 346 | const LineInfoW *winfo = el_wline(el); |
| 347 | LineInfo *info = &el->el_lgcylinfo; |
| 348 | size_t offset; |
| 349 | const Char *p; |
| 350 | |
| 351 | info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv); |
| 352 | |
| 353 | offset = 0; |
| 354 | for (p = winfo->buffer; p < winfo->cursor; p++) |
| 355 | offset += ct_enc_width(*p); |
| 356 | info->cursor = info->buffer + offset; |
| 357 | |
| 358 | offset = 0; |
| 359 | for (p = winfo->buffer; p < winfo->lastchar; p++) |
| 360 | offset += ct_enc_width(*p); |
| 361 | info->lastchar = info->buffer + offset; |
| 362 | |
| 363 | return info; |
| 364 | } |
| 365 | |
| 366 | |
| 367 | int |
| 368 | el_insertstr(EditLine *el, const char *str) |
| 369 | { |
| 370 | return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv)); |
| 371 | } |