| 1 | /* bind.c -- key binding and startup file support for the readline library. */ |
| 2 | |
| 3 | /* Copyright (C) 1987-2005 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of the GNU Readline Library, a library for |
| 6 | reading lines of text with interactive input and history editing. |
| 7 | |
| 8 | The GNU Readline Library is free software; you can redistribute it |
| 9 | and/or modify it under the terms of the GNU General Public License |
| 10 | as published by the Free Software Foundation; either version 2, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | The GNU Readline Library is distributed in the hope that it will be |
| 14 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty |
| 15 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | The GNU General Public License is often shipped with GNU software, and |
| 19 | is generally kept in a file called COPYING or LICENSE. If you do not |
| 20 | have a copy of the license, write to the Free Software Foundation, |
| 21 | 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ |
| 22 | |
| 23 | #define READLINE_LIBRARY |
| 24 | |
| 25 | #if defined (__TANDEM) |
| 26 | # include <floss.h> |
| 27 | #endif |
| 28 | |
| 29 | #if defined (HAVE_CONFIG_H) |
| 30 | # include <config.h> |
| 31 | #endif |
| 32 | |
| 33 | #include <stdio.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <fcntl.h> |
| 36 | #if defined (HAVE_SYS_FILE_H) |
| 37 | # include <sys/file.h> |
| 38 | #endif /* HAVE_SYS_FILE_H */ |
| 39 | |
| 40 | #if defined (HAVE_UNISTD_H) |
| 41 | # include <unistd.h> |
| 42 | #endif /* HAVE_UNISTD_H */ |
| 43 | |
| 44 | #if defined (HAVE_STDLIB_H) |
| 45 | # include <stdlib.h> |
| 46 | #else |
| 47 | # include "ansi_stdlib.h" |
| 48 | #endif /* HAVE_STDLIB_H */ |
| 49 | |
| 50 | #include <errno.h> |
| 51 | |
| 52 | #if !defined (errno) |
| 53 | extern int errno; |
| 54 | #endif /* !errno */ |
| 55 | |
| 56 | #include "posixstat.h" |
| 57 | |
| 58 | /* System-specific feature definitions and include files. */ |
| 59 | #include "rldefs.h" |
| 60 | |
| 61 | /* Some standard library routines. */ |
| 62 | #include "readline.h" |
| 63 | #include "history.h" |
| 64 | |
| 65 | #include "rlprivate.h" |
| 66 | #include "rlshell.h" |
| 67 | #include "xmalloc.h" |
| 68 | |
| 69 | #if !defined (strchr) && !defined (__STDC__) |
| 70 | extern char *strchr (), *strrchr (); |
| 71 | #endif /* !strchr && !__STDC__ */ |
| 72 | |
| 73 | /* Variables exported by this file. */ |
| 74 | Keymap rl_binding_keymap; |
| 75 | |
| 76 | static char *_rl_read_file PARAMS((char *, size_t *)); |
| 77 | static void _rl_init_file_error PARAMS((const char *)); |
| 78 | static int _rl_read_init_file PARAMS((const char *, int)); |
| 79 | static int glean_key_from_name PARAMS((char *)); |
| 80 | static int find_boolean_var PARAMS((const char *)); |
| 81 | |
| 82 | static char *_rl_get_string_variable_value PARAMS((const char *)); |
| 83 | static int substring_member_of_array PARAMS((char *, const char **)); |
| 84 | |
| 85 | static int currently_reading_init_file; |
| 86 | |
| 87 | /* used only in this file */ |
| 88 | static int _rl_prefer_visible_bell = 1; |
| 89 | |
| 90 | /* **************************************************************** */ |
| 91 | /* */ |
| 92 | /* Binding keys */ |
| 93 | /* */ |
| 94 | /* **************************************************************** */ |
| 95 | |
| 96 | /* rl_add_defun (char *name, rl_command_func_t *function, int key) |
| 97 | Add NAME to the list of named functions. Make FUNCTION be the function |
| 98 | that gets called. If KEY is not -1, then bind it. */ |
| 99 | int |
| 100 | rl_add_defun (name, function, key) |
| 101 | const char *name; |
| 102 | rl_command_func_t *function; |
| 103 | int key; |
| 104 | { |
| 105 | if (key != -1) |
| 106 | rl_bind_key (key, function); |
| 107 | rl_add_funmap_entry (name, function); |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | /* Bind KEY to FUNCTION. Returns non-zero if KEY is out of range. */ |
| 112 | int |
| 113 | rl_bind_key (key, function) |
| 114 | int key; |
| 115 | rl_command_func_t *function; |
| 116 | { |
| 117 | if (key < 0) |
| 118 | return (key); |
| 119 | |
| 120 | if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii) |
| 121 | { |
| 122 | if (_rl_keymap[ESC].type == ISKMAP) |
| 123 | { |
| 124 | Keymap escmap; |
| 125 | |
| 126 | escmap = FUNCTION_TO_KEYMAP (_rl_keymap, ESC); |
| 127 | key = UNMETA (key); |
| 128 | escmap[key].type = ISFUNC; |
| 129 | escmap[key].function = function; |
| 130 | return (0); |
| 131 | } |
| 132 | return (key); |
| 133 | } |
| 134 | |
| 135 | _rl_keymap[key].type = ISFUNC; |
| 136 | _rl_keymap[key].function = function; |
| 137 | rl_binding_keymap = _rl_keymap; |
| 138 | return (0); |
| 139 | } |
| 140 | |
| 141 | /* Bind KEY to FUNCTION in MAP. Returns non-zero in case of invalid |
| 142 | KEY. */ |
| 143 | int |
| 144 | rl_bind_key_in_map (key, function, map) |
| 145 | int key; |
| 146 | rl_command_func_t *function; |
| 147 | Keymap map; |
| 148 | { |
| 149 | int result; |
| 150 | Keymap oldmap; |
| 151 | |
| 152 | oldmap = _rl_keymap; |
| 153 | _rl_keymap = map; |
| 154 | result = rl_bind_key (key, function); |
| 155 | _rl_keymap = oldmap; |
| 156 | return (result); |
| 157 | } |
| 158 | |
| 159 | /* Bind key sequence KEYSEQ to DEFAULT_FUNC if KEYSEQ is unbound. Right |
| 160 | now, this is always used to attempt to bind the arrow keys, hence the |
| 161 | check for rl_vi_movement_mode. */ |
| 162 | int |
| 163 | rl_bind_key_if_unbound_in_map (key, default_func, kmap) |
| 164 | int key; |
| 165 | rl_command_func_t *default_func; |
| 166 | Keymap kmap; |
| 167 | { |
| 168 | char keyseq[2]; |
| 169 | |
| 170 | keyseq[0] = (unsigned char)key; |
| 171 | keyseq[1] = '\0'; |
| 172 | return (rl_bind_keyseq_if_unbound_in_map (keyseq, default_func, kmap)); |
| 173 | } |
| 174 | |
| 175 | int |
| 176 | rl_bind_key_if_unbound (key, default_func) |
| 177 | int key; |
| 178 | rl_command_func_t *default_func; |
| 179 | { |
| 180 | char keyseq[2]; |
| 181 | |
| 182 | keyseq[0] = (unsigned char)key; |
| 183 | keyseq[1] = '\0'; |
| 184 | return (rl_bind_keyseq_if_unbound_in_map (keyseq, default_func, _rl_keymap)); |
| 185 | } |
| 186 | |
| 187 | /* Make KEY do nothing in the currently selected keymap. |
| 188 | Returns non-zero in case of error. */ |
| 189 | int |
| 190 | rl_unbind_key (key) |
| 191 | int key; |
| 192 | { |
| 193 | return (rl_bind_key (key, (rl_command_func_t *)NULL)); |
| 194 | } |
| 195 | |
| 196 | /* Make KEY do nothing in MAP. |
| 197 | Returns non-zero in case of error. */ |
| 198 | int |
| 199 | rl_unbind_key_in_map (key, map) |
| 200 | int key; |
| 201 | Keymap map; |
| 202 | { |
| 203 | return (rl_bind_key_in_map (key, (rl_command_func_t *)NULL, map)); |
| 204 | } |
| 205 | |
| 206 | /* Unbind all keys bound to FUNCTION in MAP. */ |
| 207 | int |
| 208 | rl_unbind_function_in_map (func, map) |
| 209 | rl_command_func_t *func; |
| 210 | Keymap map; |
| 211 | { |
| 212 | register int i, rval; |
| 213 | |
| 214 | for (i = rval = 0; i < KEYMAP_SIZE; i++) |
| 215 | { |
| 216 | if (map[i].type == ISFUNC && map[i].function == func) |
| 217 | { |
| 218 | map[i].function = (rl_command_func_t *)NULL; |
| 219 | rval = 1; |
| 220 | } |
| 221 | } |
| 222 | return rval; |
| 223 | } |
| 224 | |
| 225 | int |
| 226 | rl_unbind_command_in_map (command, map) |
| 227 | const char *command; |
| 228 | Keymap map; |
| 229 | { |
| 230 | rl_command_func_t *func; |
| 231 | |
| 232 | func = rl_named_function (command); |
| 233 | if (func == 0) |
| 234 | return 0; |
| 235 | return (rl_unbind_function_in_map (func, map)); |
| 236 | } |
| 237 | |
| 238 | /* Bind the key sequence represented by the string KEYSEQ to |
| 239 | FUNCTION, starting in the current keymap. This makes new |
| 240 | keymaps as necessary. */ |
| 241 | int |
| 242 | rl_bind_keyseq (keyseq, function) |
| 243 | const char *keyseq; |
| 244 | rl_command_func_t *function; |
| 245 | { |
| 246 | return (rl_generic_bind (ISFUNC, keyseq, (char *)function, _rl_keymap)); |
| 247 | } |
| 248 | |
| 249 | /* Bind the key sequence represented by the string KEYSEQ to |
| 250 | FUNCTION. This makes new keymaps as necessary. The initial |
| 251 | place to do bindings is in MAP. */ |
| 252 | int |
| 253 | rl_bind_keyseq_in_map (keyseq, function, map) |
| 254 | const char *keyseq; |
| 255 | rl_command_func_t *function; |
| 256 | Keymap map; |
| 257 | { |
| 258 | return (rl_generic_bind (ISFUNC, keyseq, (char *)function, map)); |
| 259 | } |
| 260 | |
| 261 | /* Backwards compatibility; equivalent to rl_bind_keyseq_in_map() */ |
| 262 | int |
| 263 | rl_set_key (keyseq, function, map) |
| 264 | const char *keyseq; |
| 265 | rl_command_func_t *function; |
| 266 | Keymap map; |
| 267 | { |
| 268 | return (rl_generic_bind (ISFUNC, keyseq, (char *)function, map)); |
| 269 | } |
| 270 | |
| 271 | /* Bind key sequence KEYSEQ to DEFAULT_FUNC if KEYSEQ is unbound. Right |
| 272 | now, this is always used to attempt to bind the arrow keys, hence the |
| 273 | check for rl_vi_movement_mode. */ |
| 274 | int |
| 275 | rl_bind_keyseq_if_unbound_in_map (keyseq, default_func, kmap) |
| 276 | const char *keyseq; |
| 277 | rl_command_func_t *default_func; |
| 278 | Keymap kmap; |
| 279 | { |
| 280 | rl_command_func_t *func; |
| 281 | |
| 282 | if (keyseq) |
| 283 | { |
| 284 | func = rl_function_of_keyseq (keyseq, kmap, (int *)NULL); |
| 285 | #if defined (VI_MODE) |
| 286 | if (!func || func == rl_do_lowercase_version || func == rl_vi_movement_mode) |
| 287 | #else |
| 288 | if (!func || func == rl_do_lowercase_version) |
| 289 | #endif |
| 290 | return (rl_bind_keyseq_in_map (keyseq, default_func, kmap)); |
| 291 | else |
| 292 | return 1; |
| 293 | } |
| 294 | return 0; |
| 295 | } |
| 296 | |
| 297 | int |
| 298 | rl_bind_keyseq_if_unbound (keyseq, default_func) |
| 299 | const char *keyseq; |
| 300 | rl_command_func_t *default_func; |
| 301 | { |
| 302 | return (rl_bind_keyseq_if_unbound_in_map (keyseq, default_func, _rl_keymap)); |
| 303 | } |
| 304 | |
| 305 | /* Bind the key sequence represented by the string KEYSEQ to |
| 306 | the string of characters MACRO. This makes new keymaps as |
| 307 | necessary. The initial place to do bindings is in MAP. */ |
| 308 | int |
| 309 | rl_macro_bind (keyseq, macro, map) |
| 310 | const char *keyseq, *macro; |
| 311 | Keymap map; |
| 312 | { |
| 313 | char *macro_keys; |
| 314 | int macro_keys_len; |
| 315 | |
| 316 | macro_keys = (char *)xmalloc ((2 * strlen (macro)) + 1); |
| 317 | |
| 318 | if (rl_translate_keyseq (macro, macro_keys, ¯o_keys_len)) |
| 319 | { |
| 320 | free (macro_keys); |
| 321 | return -1; |
| 322 | } |
| 323 | rl_generic_bind (ISMACR, keyseq, macro_keys, map); |
| 324 | return 0; |
| 325 | } |
| 326 | |
| 327 | /* Bind the key sequence represented by the string KEYSEQ to |
| 328 | the arbitrary pointer DATA. TYPE says what kind of data is |
| 329 | pointed to by DATA, right now this can be a function (ISFUNC), |
| 330 | a macro (ISMACR), or a keymap (ISKMAP). This makes new keymaps |
| 331 | as necessary. The initial place to do bindings is in MAP. */ |
| 332 | int |
| 333 | rl_generic_bind (type, keyseq, data, map) |
| 334 | int type; |
| 335 | const char *keyseq; |
| 336 | char *data; |
| 337 | Keymap map; |
| 338 | { |
| 339 | char *keys; |
| 340 | int keys_len; |
| 341 | register int i; |
| 342 | KEYMAP_ENTRY k; |
| 343 | |
| 344 | k.function = 0; |
| 345 | |
| 346 | /* If no keys to bind to, exit right away. */ |
| 347 | if (keyseq == 0 || *keyseq == 0) |
| 348 | { |
| 349 | if (type == ISMACR) |
| 350 | free (data); |
| 351 | return -1; |
| 352 | } |
| 353 | |
| 354 | keys = (char *)xmalloc (1 + (2 * strlen (keyseq))); |
| 355 | |
| 356 | /* Translate the ASCII representation of KEYSEQ into an array of |
| 357 | characters. Stuff the characters into KEYS, and the length of |
| 358 | KEYS into KEYS_LEN. */ |
| 359 | if (rl_translate_keyseq (keyseq, keys, &keys_len)) |
| 360 | { |
| 361 | free (keys); |
| 362 | return -1; |
| 363 | } |
| 364 | |
| 365 | /* Bind keys, making new keymaps as necessary. */ |
| 366 | for (i = 0; i < keys_len; i++) |
| 367 | { |
| 368 | unsigned char uc = keys[i]; |
| 369 | int ic; |
| 370 | |
| 371 | ic = uc; |
| 372 | if (ic < 0 || ic >= KEYMAP_SIZE) |
| 373 | return -1; |
| 374 | |
| 375 | if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii) |
| 376 | { |
| 377 | ic = UNMETA (ic); |
| 378 | if (map[ESC].type == ISKMAP) |
| 379 | map = FUNCTION_TO_KEYMAP (map, ESC); |
| 380 | } |
| 381 | |
| 382 | if ((i + 1) < keys_len) |
| 383 | { |
| 384 | if (map[ic].type != ISKMAP) |
| 385 | { |
| 386 | /* We allow subsequences of keys. If a keymap is being |
| 387 | created that will `shadow' an existing function or macro |
| 388 | key binding, we save that keybinding into the ANYOTHERKEY |
| 389 | index in the new map. The dispatch code will look there |
| 390 | to find the function to execute if the subsequence is not |
| 391 | matched. ANYOTHERKEY was chosen to be greater than |
| 392 | UCHAR_MAX. */ |
| 393 | k = map[ic]; |
| 394 | |
| 395 | map[ic].type = ISKMAP; |
| 396 | map[ic].function = KEYMAP_TO_FUNCTION (rl_make_bare_keymap()); |
| 397 | } |
| 398 | map = FUNCTION_TO_KEYMAP (map, ic); |
| 399 | /* The dispatch code will return this function if no matching |
| 400 | key sequence is found in the keymap. This (with a little |
| 401 | help from the dispatch code in readline.c) allows `a' to be |
| 402 | mapped to something, `abc' to be mapped to something else, |
| 403 | and the function bound to `a' to be executed when the user |
| 404 | types `abx', leaving `bx' in the input queue. */ |
| 405 | if (k.function && ((k.type == ISFUNC && k.function != rl_do_lowercase_version) || k.type == ISMACR)) |
| 406 | { |
| 407 | map[ANYOTHERKEY] = k; |
| 408 | k.function = 0; |
| 409 | } |
| 410 | } |
| 411 | else |
| 412 | { |
| 413 | if (map[ic].type == ISMACR) |
| 414 | free ((char *)map[ic].function); |
| 415 | else if (map[ic].type == ISKMAP) |
| 416 | { |
| 417 | map = FUNCTION_TO_KEYMAP (map, ic); |
| 418 | ic = ANYOTHERKEY; |
| 419 | } |
| 420 | |
| 421 | map[ic].function = KEYMAP_TO_FUNCTION (data); |
| 422 | map[ic].type = type; |
| 423 | } |
| 424 | |
| 425 | rl_binding_keymap = map; |
| 426 | } |
| 427 | free (keys); |
| 428 | return 0; |
| 429 | } |
| 430 | |
| 431 | /* Translate the ASCII representation of SEQ, stuffing the values into ARRAY, |
| 432 | an array of characters. LEN gets the final length of ARRAY. Return |
| 433 | non-zero if there was an error parsing SEQ. */ |
| 434 | int |
| 435 | rl_translate_keyseq (seq, array, len) |
| 436 | const char *seq; |
| 437 | char *array; |
| 438 | int *len; |
| 439 | { |
| 440 | register int i, c, l, temp; |
| 441 | |
| 442 | for (i = l = 0; c = seq[i]; i++) |
| 443 | { |
| 444 | if (c == '\\') |
| 445 | { |
| 446 | c = seq[++i]; |
| 447 | |
| 448 | if (c == 0) |
| 449 | break; |
| 450 | |
| 451 | /* Handle \C- and \M- prefixes. */ |
| 452 | if ((c == 'C' || c == 'M') && seq[i + 1] == '-') |
| 453 | { |
| 454 | /* Handle special case of backwards define. */ |
| 455 | if (strncmp (&seq[i], "C-\\M-", 5) == 0) |
| 456 | { |
| 457 | array[l++] = ESC; /* ESC is meta-prefix */ |
| 458 | i += 5; |
| 459 | array[l++] = CTRL (_rl_to_upper (seq[i])); |
| 460 | if (seq[i] == '\0') |
| 461 | i--; |
| 462 | } |
| 463 | else if (c == 'M') |
| 464 | { |
| 465 | i++; |
| 466 | /* XXX - should obey convert-meta setting? */ |
| 467 | if (_rl_convert_meta_chars_to_ascii && _rl_keymap[ESC].type == ISKMAP) |
| 468 | array[l++] = ESC; /* ESC is meta-prefix */ |
| 469 | else |
| 470 | { |
| 471 | i++; |
| 472 | array[l++] = META (seq[i]); |
| 473 | } |
| 474 | } |
| 475 | else if (c == 'C') |
| 476 | { |
| 477 | i += 2; |
| 478 | /* Special hack for C-?... */ |
| 479 | array[l++] = (seq[i] == '?') ? RUBOUT : CTRL (_rl_to_upper (seq[i])); |
| 480 | } |
| 481 | continue; |
| 482 | } |
| 483 | |
| 484 | /* Translate other backslash-escaped characters. These are the |
| 485 | same escape sequences that bash's `echo' and `printf' builtins |
| 486 | handle, with the addition of \d -> RUBOUT. A backslash |
| 487 | preceding a character that is not special is stripped. */ |
| 488 | switch (c) |
| 489 | { |
| 490 | case 'a': |
| 491 | array[l++] = '\007'; |
| 492 | break; |
| 493 | case 'b': |
| 494 | array[l++] = '\b'; |
| 495 | break; |
| 496 | case 'd': |
| 497 | array[l++] = RUBOUT; /* readline-specific */ |
| 498 | break; |
| 499 | case 'e': |
| 500 | array[l++] = ESC; |
| 501 | break; |
| 502 | case 'f': |
| 503 | array[l++] = '\f'; |
| 504 | break; |
| 505 | case 'n': |
| 506 | array[l++] = NEWLINE; |
| 507 | break; |
| 508 | case 'r': |
| 509 | array[l++] = RETURN; |
| 510 | break; |
| 511 | case 't': |
| 512 | array[l++] = TAB; |
| 513 | break; |
| 514 | case 'v': |
| 515 | array[l++] = 0x0B; |
| 516 | break; |
| 517 | case '\\': |
| 518 | array[l++] = '\\'; |
| 519 | break; |
| 520 | case '0': case '1': case '2': case '3': |
| 521 | case '4': case '5': case '6': case '7': |
| 522 | i++; |
| 523 | for (temp = 2, c -= '0'; ISOCTAL (seq[i]) && temp--; i++) |
| 524 | c = (c * 8) + OCTVALUE (seq[i]); |
| 525 | i--; /* auto-increment in for loop */ |
| 526 | array[l++] = c & largest_char; |
| 527 | break; |
| 528 | case 'x': |
| 529 | i++; |
| 530 | for (temp = 2, c = 0; ISXDIGIT ((unsigned char)seq[i]) && temp--; i++) |
| 531 | c = (c * 16) + HEXVALUE (seq[i]); |
| 532 | if (temp == 2) |
| 533 | c = 'x'; |
| 534 | i--; /* auto-increment in for loop */ |
| 535 | array[l++] = c & largest_char; |
| 536 | break; |
| 537 | default: /* backslashes before non-special chars just add the char */ |
| 538 | array[l++] = c; |
| 539 | break; /* the backslash is stripped */ |
| 540 | } |
| 541 | continue; |
| 542 | } |
| 543 | |
| 544 | array[l++] = c; |
| 545 | } |
| 546 | |
| 547 | *len = l; |
| 548 | array[l] = '\0'; |
| 549 | return (0); |
| 550 | } |
| 551 | |
| 552 | char * |
| 553 | rl_untranslate_keyseq (seq) |
| 554 | int seq; |
| 555 | { |
| 556 | static char kseq[16]; |
| 557 | int i, c; |
| 558 | |
| 559 | i = 0; |
| 560 | c = seq; |
| 561 | if (META_CHAR (c)) |
| 562 | { |
| 563 | kseq[i++] = '\\'; |
| 564 | kseq[i++] = 'M'; |
| 565 | kseq[i++] = '-'; |
| 566 | c = UNMETA (c); |
| 567 | } |
| 568 | else if (CTRL_CHAR (c)) |
| 569 | { |
| 570 | kseq[i++] = '\\'; |
| 571 | kseq[i++] = 'C'; |
| 572 | kseq[i++] = '-'; |
| 573 | c = _rl_to_lower (UNCTRL (c)); |
| 574 | } |
| 575 | else if (c == RUBOUT) |
| 576 | { |
| 577 | kseq[i++] = '\\'; |
| 578 | kseq[i++] = 'C'; |
| 579 | kseq[i++] = '-'; |
| 580 | c = '?'; |
| 581 | } |
| 582 | |
| 583 | if (c == ESC) |
| 584 | { |
| 585 | kseq[i++] = '\\'; |
| 586 | c = 'e'; |
| 587 | } |
| 588 | else if (c == '\\' || c == '"') |
| 589 | { |
| 590 | kseq[i++] = '\\'; |
| 591 | } |
| 592 | |
| 593 | kseq[i++] = (unsigned char) c; |
| 594 | kseq[i] = '\0'; |
| 595 | return kseq; |
| 596 | } |
| 597 | |
| 598 | static char * |
| 599 | _rl_untranslate_macro_value (seq) |
| 600 | char *seq; |
| 601 | { |
| 602 | char *ret, *r, *s; |
| 603 | int c; |
| 604 | |
| 605 | r = ret = (char *)xmalloc (7 * strlen (seq) + 1); |
| 606 | for (s = seq; *s; s++) |
| 607 | { |
| 608 | c = *s; |
| 609 | if (META_CHAR (c)) |
| 610 | { |
| 611 | *r++ = '\\'; |
| 612 | *r++ = 'M'; |
| 613 | *r++ = '-'; |
| 614 | c = UNMETA (c); |
| 615 | } |
| 616 | else if (CTRL_CHAR (c) && c != ESC) |
| 617 | { |
| 618 | *r++ = '\\'; |
| 619 | *r++ = 'C'; |
| 620 | *r++ = '-'; |
| 621 | c = _rl_to_lower (UNCTRL (c)); |
| 622 | } |
| 623 | else if (c == RUBOUT) |
| 624 | { |
| 625 | *r++ = '\\'; |
| 626 | *r++ = 'C'; |
| 627 | *r++ = '-'; |
| 628 | c = '?'; |
| 629 | } |
| 630 | |
| 631 | if (c == ESC) |
| 632 | { |
| 633 | *r++ = '\\'; |
| 634 | c = 'e'; |
| 635 | } |
| 636 | else if (c == '\\' || c == '"') |
| 637 | *r++ = '\\'; |
| 638 | |
| 639 | *r++ = (unsigned char)c; |
| 640 | } |
| 641 | *r = '\0'; |
| 642 | return ret; |
| 643 | } |
| 644 | |
| 645 | /* Return a pointer to the function that STRING represents. |
| 646 | If STRING doesn't have a matching function, then a NULL pointer |
| 647 | is returned. */ |
| 648 | rl_command_func_t * |
| 649 | rl_named_function (string) |
| 650 | const char *string; |
| 651 | { |
| 652 | register int i; |
| 653 | |
| 654 | rl_initialize_funmap (); |
| 655 | |
| 656 | for (i = 0; funmap[i]; i++) |
| 657 | if (_rl_stricmp (funmap[i]->name, string) == 0) |
| 658 | return (funmap[i]->function); |
| 659 | return ((rl_command_func_t *)NULL); |
| 660 | } |
| 661 | |
| 662 | /* Return the function (or macro) definition which would be invoked via |
| 663 | KEYSEQ if executed in MAP. If MAP is NULL, then the current keymap is |
| 664 | used. TYPE, if non-NULL, is a pointer to an int which will receive the |
| 665 | type of the object pointed to. One of ISFUNC (function), ISKMAP (keymap), |
| 666 | or ISMACR (macro). */ |
| 667 | rl_command_func_t * |
| 668 | rl_function_of_keyseq (keyseq, map, type) |
| 669 | const char *keyseq; |
| 670 | Keymap map; |
| 671 | int *type; |
| 672 | { |
| 673 | register int i; |
| 674 | |
| 675 | if (!map) |
| 676 | map = _rl_keymap; |
| 677 | |
| 678 | for (i = 0; keyseq && keyseq[i]; i++) |
| 679 | { |
| 680 | unsigned char ic = keyseq[i]; |
| 681 | |
| 682 | if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii) |
| 683 | { |
| 684 | if (map[ESC].type != ISKMAP) |
| 685 | { |
| 686 | if (type) |
| 687 | *type = map[ESC].type; |
| 688 | |
| 689 | return (map[ESC].function); |
| 690 | } |
| 691 | else |
| 692 | { |
| 693 | map = FUNCTION_TO_KEYMAP (map, ESC); |
| 694 | ic = UNMETA (ic); |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | if (map[ic].type == ISKMAP) |
| 699 | { |
| 700 | /* If this is the last key in the key sequence, return the |
| 701 | map. */ |
| 702 | if (!keyseq[i + 1]) |
| 703 | { |
| 704 | if (type) |
| 705 | *type = ISKMAP; |
| 706 | |
| 707 | return (map[ic].function); |
| 708 | } |
| 709 | else |
| 710 | map = FUNCTION_TO_KEYMAP (map, ic); |
| 711 | } |
| 712 | else |
| 713 | { |
| 714 | if (type) |
| 715 | *type = map[ic].type; |
| 716 | |
| 717 | return (map[ic].function); |
| 718 | } |
| 719 | } |
| 720 | return ((rl_command_func_t *) NULL); |
| 721 | } |
| 722 | |
| 723 | /* The last key bindings file read. */ |
| 724 | static char *last_readline_init_file = (char *)NULL; |
| 725 | |
| 726 | /* The file we're currently reading key bindings from. */ |
| 727 | static const char *current_readline_init_file; |
| 728 | static int current_readline_init_include_level; |
| 729 | static int current_readline_init_lineno; |
| 730 | |
| 731 | /* Read FILENAME into a locally-allocated buffer and return the buffer. |
| 732 | The size of the buffer is returned in *SIZEP. Returns NULL if any |
| 733 | errors were encountered. */ |
| 734 | static char * |
| 735 | _rl_read_file (filename, sizep) |
| 736 | char *filename; |
| 737 | size_t *sizep; |
| 738 | { |
| 739 | struct stat finfo; |
| 740 | size_t file_size; |
| 741 | char *buffer; |
| 742 | int i, file; |
| 743 | |
| 744 | if ((stat (filename, &finfo) < 0) || (file = open (filename, O_RDONLY, 0666)) < 0) |
| 745 | return ((char *)NULL); |
| 746 | |
| 747 | file_size = (size_t)finfo.st_size; |
| 748 | |
| 749 | /* check for overflow on very large files */ |
| 750 | if (file_size != finfo.st_size || file_size + 1 < file_size) |
| 751 | { |
| 752 | if (file >= 0) |
| 753 | close (file); |
| 754 | #if defined (EFBIG) |
| 755 | errno = EFBIG; |
| 756 | #endif |
| 757 | return ((char *)NULL); |
| 758 | } |
| 759 | |
| 760 | /* Read the file into BUFFER. */ |
| 761 | buffer = (char *)xmalloc (file_size + 1); |
| 762 | i = read (file, buffer, file_size); |
| 763 | close (file); |
| 764 | |
| 765 | if (i < 0) |
| 766 | { |
| 767 | free (buffer); |
| 768 | return ((char *)NULL); |
| 769 | } |
| 770 | |
| 771 | buffer[i] = '\0'; |
| 772 | if (sizep) |
| 773 | *sizep = i; |
| 774 | |
| 775 | return (buffer); |
| 776 | } |
| 777 | |
| 778 | /* Re-read the current keybindings file. */ |
| 779 | int |
| 780 | rl_re_read_init_file (count, ignore) |
| 781 | int count, ignore; |
| 782 | { |
| 783 | int r; |
| 784 | r = rl_read_init_file ((const char *)NULL); |
| 785 | rl_set_keymap_from_edit_mode (); |
| 786 | return r; |
| 787 | } |
| 788 | |
| 789 | /* Do key bindings from a file. If FILENAME is NULL it defaults |
| 790 | to the first non-null filename from this list: |
| 791 | 1. the filename used for the previous call |
| 792 | 2. the value of the shell variable `INPUTRC' |
| 793 | 3. ~/.inputrc |
| 794 | If the file existed and could be opened and read, 0 is returned, |
| 795 | otherwise errno is returned. */ |
| 796 | int |
| 797 | rl_read_init_file (filename) |
| 798 | const char *filename; |
| 799 | { |
| 800 | /* Default the filename. */ |
| 801 | if (filename == 0) |
| 802 | { |
| 803 | filename = last_readline_init_file; |
| 804 | if (filename == 0) |
| 805 | filename = sh_get_env_value ("INPUTRC"); |
| 806 | if (filename == 0) |
| 807 | filename = DEFAULT_INPUTRC; |
| 808 | } |
| 809 | |
| 810 | if (*filename == 0) |
| 811 | filename = DEFAULT_INPUTRC; |
| 812 | |
| 813 | #if defined (__MSDOS__) |
| 814 | if (_rl_read_init_file (filename, 0) == 0) |
| 815 | return 0; |
| 816 | filename = "~/_inputrc"; |
| 817 | #endif |
| 818 | return (_rl_read_init_file (filename, 0)); |
| 819 | } |
| 820 | |
| 821 | static int |
| 822 | _rl_read_init_file (filename, include_level) |
| 823 | const char *filename; |
| 824 | int include_level; |
| 825 | { |
| 826 | register int i; |
| 827 | char *buffer, *openname, *line, *end; |
| 828 | size_t file_size; |
| 829 | |
| 830 | current_readline_init_file = filename; |
| 831 | current_readline_init_include_level = include_level; |
| 832 | |
| 833 | openname = tilde_expand (filename); |
| 834 | buffer = _rl_read_file (openname, &file_size); |
| 835 | free (openname); |
| 836 | |
| 837 | if (buffer == 0) |
| 838 | return (errno); |
| 839 | |
| 840 | if (include_level == 0 && filename != last_readline_init_file) |
| 841 | { |
| 842 | FREE (last_readline_init_file); |
| 843 | last_readline_init_file = savestring (filename); |
| 844 | } |
| 845 | |
| 846 | currently_reading_init_file = 1; |
| 847 | |
| 848 | /* Loop over the lines in the file. Lines that start with `#' are |
| 849 | comments; all other lines are commands for readline initialization. */ |
| 850 | current_readline_init_lineno = 1; |
| 851 | line = buffer; |
| 852 | end = buffer + file_size; |
| 853 | while (line < end) |
| 854 | { |
| 855 | /* Find the end of this line. */ |
| 856 | for (i = 0; line + i != end && line[i] != '\n'; i++); |
| 857 | |
| 858 | #if defined (__CYGWIN__) |
| 859 | /* ``Be liberal in what you accept.'' */ |
| 860 | if (line[i] == '\n' && line[i-1] == '\r') |
| 861 | line[i - 1] = '\0'; |
| 862 | #endif |
| 863 | |
| 864 | /* Mark end of line. */ |
| 865 | line[i] = '\0'; |
| 866 | |
| 867 | /* Skip leading whitespace. */ |
| 868 | while (*line && whitespace (*line)) |
| 869 | { |
| 870 | line++; |
| 871 | i--; |
| 872 | } |
| 873 | |
| 874 | /* If the line is not a comment, then parse it. */ |
| 875 | if (*line && *line != '#') |
| 876 | rl_parse_and_bind (line); |
| 877 | |
| 878 | /* Move to the next line. */ |
| 879 | line += i + 1; |
| 880 | current_readline_init_lineno++; |
| 881 | } |
| 882 | |
| 883 | free (buffer); |
| 884 | currently_reading_init_file = 0; |
| 885 | return (0); |
| 886 | } |
| 887 | |
| 888 | static void |
| 889 | _rl_init_file_error (msg) |
| 890 | const char *msg; |
| 891 | { |
| 892 | if (currently_reading_init_file) |
| 893 | fprintf (stderr, "readline: %s: line %d: %s\n", current_readline_init_file, |
| 894 | current_readline_init_lineno, msg); |
| 895 | else |
| 896 | fprintf (stderr, "readline: %s\n", msg); |
| 897 | } |
| 898 | |
| 899 | /* **************************************************************** */ |
| 900 | /* */ |
| 901 | /* Parser Directives */ |
| 902 | /* */ |
| 903 | /* **************************************************************** */ |
| 904 | |
| 905 | typedef int _rl_parser_func_t PARAMS((char *)); |
| 906 | |
| 907 | /* Things that mean `Control'. */ |
| 908 | const char *_rl_possible_control_prefixes[] = { |
| 909 | "Control-", "C-", "CTRL-", (const char *)NULL |
| 910 | }; |
| 911 | |
| 912 | const char *_rl_possible_meta_prefixes[] = { |
| 913 | "Meta", "M-", (const char *)NULL |
| 914 | }; |
| 915 | |
| 916 | /* Conditionals. */ |
| 917 | |
| 918 | /* Calling programs set this to have their argv[0]. */ |
| 919 | const char *rl_readline_name = "other"; |
| 920 | |
| 921 | /* Stack of previous values of parsing_conditionalized_out. */ |
| 922 | static unsigned char *if_stack = (unsigned char *)NULL; |
| 923 | static int if_stack_depth; |
| 924 | static int if_stack_size; |
| 925 | |
| 926 | /* Push _rl_parsing_conditionalized_out, and set parser state based |
| 927 | on ARGS. */ |
| 928 | static int |
| 929 | parser_if (args) |
| 930 | char *args; |
| 931 | { |
| 932 | register int i; |
| 933 | |
| 934 | /* Push parser state. */ |
| 935 | if (if_stack_depth + 1 >= if_stack_size) |
| 936 | { |
| 937 | if (!if_stack) |
| 938 | if_stack = (unsigned char *)xmalloc (if_stack_size = 20); |
| 939 | else |
| 940 | if_stack = (unsigned char *)xrealloc (if_stack, if_stack_size += 20); |
| 941 | } |
| 942 | if_stack[if_stack_depth++] = _rl_parsing_conditionalized_out; |
| 943 | |
| 944 | /* If parsing is turned off, then nothing can turn it back on except |
| 945 | for finding the matching endif. In that case, return right now. */ |
| 946 | if (_rl_parsing_conditionalized_out) |
| 947 | return 0; |
| 948 | |
| 949 | /* Isolate first argument. */ |
| 950 | for (i = 0; args[i] && !whitespace (args[i]); i++); |
| 951 | |
| 952 | if (args[i]) |
| 953 | args[i++] = '\0'; |
| 954 | |
| 955 | /* Handle "$if term=foo" and "$if mode=emacs" constructs. If this |
| 956 | isn't term=foo, or mode=emacs, then check to see if the first |
| 957 | word in ARGS is the same as the value stored in rl_readline_name. */ |
| 958 | if (rl_terminal_name && _rl_strnicmp (args, "term=", 5) == 0) |
| 959 | { |
| 960 | char *tem, *tname; |
| 961 | |
| 962 | /* Terminals like "aaa-60" are equivalent to "aaa". */ |
| 963 | tname = savestring (rl_terminal_name); |
| 964 | tem = strchr (tname, '-'); |
| 965 | if (tem) |
| 966 | *tem = '\0'; |
| 967 | |
| 968 | /* Test the `long' and `short' forms of the terminal name so that |
| 969 | if someone has a `sun-cmd' and does not want to have bindings |
| 970 | that will be executed if the terminal is a `sun', they can put |
| 971 | `$if term=sun-cmd' into their .inputrc. */ |
| 972 | _rl_parsing_conditionalized_out = _rl_stricmp (args + 5, tname) && |
| 973 | _rl_stricmp (args + 5, rl_terminal_name); |
| 974 | free (tname); |
| 975 | } |
| 976 | #if defined (VI_MODE) |
| 977 | else if (_rl_strnicmp (args, "mode=", 5) == 0) |
| 978 | { |
| 979 | int mode; |
| 980 | |
| 981 | if (_rl_stricmp (args + 5, "emacs") == 0) |
| 982 | mode = emacs_mode; |
| 983 | else if (_rl_stricmp (args + 5, "vi") == 0) |
| 984 | mode = vi_mode; |
| 985 | else |
| 986 | mode = no_mode; |
| 987 | |
| 988 | _rl_parsing_conditionalized_out = mode != rl_editing_mode; |
| 989 | } |
| 990 | #endif /* VI_MODE */ |
| 991 | /* Check to see if the first word in ARGS is the same as the |
| 992 | value stored in rl_readline_name. */ |
| 993 | else if (_rl_stricmp (args, rl_readline_name) == 0) |
| 994 | _rl_parsing_conditionalized_out = 0; |
| 995 | else |
| 996 | _rl_parsing_conditionalized_out = 1; |
| 997 | return 0; |
| 998 | } |
| 999 | |
| 1000 | /* Invert the current parser state if there is anything on the stack. */ |
| 1001 | static int |
| 1002 | parser_else (args) |
| 1003 | char *args; |
| 1004 | { |
| 1005 | register int i; |
| 1006 | |
| 1007 | if (if_stack_depth == 0) |
| 1008 | { |
| 1009 | _rl_init_file_error ("$else found without matching $if"); |
| 1010 | return 0; |
| 1011 | } |
| 1012 | |
| 1013 | #if 0 |
| 1014 | /* Check the previous (n - 1) levels of the stack to make sure that |
| 1015 | we haven't previously turned off parsing. */ |
| 1016 | for (i = 0; i < if_stack_depth - 1; i++) |
| 1017 | #else |
| 1018 | /* Check the previous (n) levels of the stack to make sure that |
| 1019 | we haven't previously turned off parsing. */ |
| 1020 | for (i = 0; i < if_stack_depth; i++) |
| 1021 | #endif |
| 1022 | if (if_stack[i] == 1) |
| 1023 | return 0; |
| 1024 | |
| 1025 | /* Invert the state of parsing if at top level. */ |
| 1026 | _rl_parsing_conditionalized_out = !_rl_parsing_conditionalized_out; |
| 1027 | return 0; |
| 1028 | } |
| 1029 | |
| 1030 | /* Terminate a conditional, popping the value of |
| 1031 | _rl_parsing_conditionalized_out from the stack. */ |
| 1032 | static int |
| 1033 | parser_endif (args) |
| 1034 | char *args; |
| 1035 | { |
| 1036 | if (if_stack_depth) |
| 1037 | _rl_parsing_conditionalized_out = if_stack[--if_stack_depth]; |
| 1038 | else |
| 1039 | _rl_init_file_error ("$endif without matching $if"); |
| 1040 | return 0; |
| 1041 | } |
| 1042 | |
| 1043 | static int |
| 1044 | parser_include (args) |
| 1045 | char *args; |
| 1046 | { |
| 1047 | const char *old_init_file; |
| 1048 | char *e; |
| 1049 | int old_line_number, old_include_level, r; |
| 1050 | |
| 1051 | if (_rl_parsing_conditionalized_out) |
| 1052 | return (0); |
| 1053 | |
| 1054 | old_init_file = current_readline_init_file; |
| 1055 | old_line_number = current_readline_init_lineno; |
| 1056 | old_include_level = current_readline_init_include_level; |
| 1057 | |
| 1058 | e = strchr (args, '\n'); |
| 1059 | if (e) |
| 1060 | *e = '\0'; |
| 1061 | r = _rl_read_init_file ((const char *)args, old_include_level + 1); |
| 1062 | |
| 1063 | current_readline_init_file = old_init_file; |
| 1064 | current_readline_init_lineno = old_line_number; |
| 1065 | current_readline_init_include_level = old_include_level; |
| 1066 | |
| 1067 | return r; |
| 1068 | } |
| 1069 | |
| 1070 | /* Associate textual names with actual functions. */ |
| 1071 | static struct { |
| 1072 | const char *name; |
| 1073 | _rl_parser_func_t *function; |
| 1074 | } parser_directives [] = { |
| 1075 | { "if", parser_if }, |
| 1076 | { "endif", parser_endif }, |
| 1077 | { "else", parser_else }, |
| 1078 | { "include", parser_include }, |
| 1079 | { (char *)0x0, (_rl_parser_func_t *)0x0 } |
| 1080 | }; |
| 1081 | |
| 1082 | /* Handle a parser directive. STATEMENT is the line of the directive |
| 1083 | without any leading `$'. */ |
| 1084 | static int |
| 1085 | handle_parser_directive (statement) |
| 1086 | char *statement; |
| 1087 | { |
| 1088 | register int i; |
| 1089 | char *directive, *args; |
| 1090 | |
| 1091 | /* Isolate the actual directive. */ |
| 1092 | |
| 1093 | /* Skip whitespace. */ |
| 1094 | for (i = 0; whitespace (statement[i]); i++); |
| 1095 | |
| 1096 | directive = &statement[i]; |
| 1097 | |
| 1098 | for (; statement[i] && !whitespace (statement[i]); i++); |
| 1099 | |
| 1100 | if (statement[i]) |
| 1101 | statement[i++] = '\0'; |
| 1102 | |
| 1103 | for (; statement[i] && whitespace (statement[i]); i++); |
| 1104 | |
| 1105 | args = &statement[i]; |
| 1106 | |
| 1107 | /* Lookup the command, and act on it. */ |
| 1108 | for (i = 0; parser_directives[i].name; i++) |
| 1109 | if (_rl_stricmp (directive, parser_directives[i].name) == 0) |
| 1110 | { |
| 1111 | (*parser_directives[i].function) (args); |
| 1112 | return (0); |
| 1113 | } |
| 1114 | |
| 1115 | /* display an error message about the unknown parser directive */ |
| 1116 | _rl_init_file_error ("unknown parser directive"); |
| 1117 | return (1); |
| 1118 | } |
| 1119 | |
| 1120 | /* Read the binding command from STRING and perform it. |
| 1121 | A key binding command looks like: Keyname: function-name\0, |
| 1122 | a variable binding command looks like: set variable value. |
| 1123 | A new-style keybinding looks like "\C-x\C-x": exchange-point-and-mark. */ |
| 1124 | int |
| 1125 | rl_parse_and_bind (string) |
| 1126 | char *string; |
| 1127 | { |
| 1128 | char *funname, *kname; |
| 1129 | register int c, i; |
| 1130 | int key, equivalency; |
| 1131 | |
| 1132 | while (string && whitespace (*string)) |
| 1133 | string++; |
| 1134 | |
| 1135 | if (!string || !*string || *string == '#') |
| 1136 | return 0; |
| 1137 | |
| 1138 | /* If this is a parser directive, act on it. */ |
| 1139 | if (*string == '$') |
| 1140 | { |
| 1141 | handle_parser_directive (&string[1]); |
| 1142 | return 0; |
| 1143 | } |
| 1144 | |
| 1145 | /* If we aren't supposed to be parsing right now, then we're done. */ |
| 1146 | if (_rl_parsing_conditionalized_out) |
| 1147 | return 0; |
| 1148 | |
| 1149 | i = 0; |
| 1150 | /* If this keyname is a complex key expression surrounded by quotes, |
| 1151 | advance to after the matching close quote. This code allows the |
| 1152 | backslash to quote characters in the key expression. */ |
| 1153 | if (*string == '"') |
| 1154 | { |
| 1155 | int passc = 0; |
| 1156 | |
| 1157 | for (i = 1; c = string[i]; i++) |
| 1158 | { |
| 1159 | if (passc) |
| 1160 | { |
| 1161 | passc = 0; |
| 1162 | continue; |
| 1163 | } |
| 1164 | |
| 1165 | if (c == '\\') |
| 1166 | { |
| 1167 | passc++; |
| 1168 | continue; |
| 1169 | } |
| 1170 | |
| 1171 | if (c == '"') |
| 1172 | break; |
| 1173 | } |
| 1174 | /* If we didn't find a closing quote, abort the line. */ |
| 1175 | if (string[i] == '\0') |
| 1176 | { |
| 1177 | _rl_init_file_error ("no closing `\"' in key binding"); |
| 1178 | return 1; |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | /* Advance to the colon (:) or whitespace which separates the two objects. */ |
| 1183 | for (; (c = string[i]) && c != ':' && c != ' ' && c != '\t'; i++ ); |
| 1184 | |
| 1185 | equivalency = (c == ':' && string[i + 1] == '='); |
| 1186 | |
| 1187 | /* Mark the end of the command (or keyname). */ |
| 1188 | if (string[i]) |
| 1189 | string[i++] = '\0'; |
| 1190 | |
| 1191 | /* If doing assignment, skip the '=' sign as well. */ |
| 1192 | if (equivalency) |
| 1193 | string[i++] = '\0'; |
| 1194 | |
| 1195 | /* If this is a command to set a variable, then do that. */ |
| 1196 | if (_rl_stricmp (string, "set") == 0) |
| 1197 | { |
| 1198 | char *var, *value, *e; |
| 1199 | |
| 1200 | var = string + i; |
| 1201 | /* Make VAR point to start of variable name. */ |
| 1202 | while (*var && whitespace (*var)) var++; |
| 1203 | |
| 1204 | /* Make VALUE point to start of value string. */ |
| 1205 | value = var; |
| 1206 | while (*value && !whitespace (*value)) value++; |
| 1207 | if (*value) |
| 1208 | *value++ = '\0'; |
| 1209 | while (*value && whitespace (*value)) value++; |
| 1210 | |
| 1211 | /* Strip trailing whitespace from values to boolean variables. Temp |
| 1212 | fix until I get a real quoted-string parser here. */ |
| 1213 | i = find_boolean_var (var); |
| 1214 | if (i >= 0) |
| 1215 | { |
| 1216 | /* remove trailing whitespace */ |
| 1217 | e = value + strlen (value) - 1; |
| 1218 | while (e >= value && whitespace (*e)) |
| 1219 | e--; |
| 1220 | e++; /* skip back to whitespace or EOS */ |
| 1221 | if (*e && e >= value) |
| 1222 | *e = '\0'; |
| 1223 | } |
| 1224 | |
| 1225 | rl_variable_bind (var, value); |
| 1226 | return 0; |
| 1227 | } |
| 1228 | |
| 1229 | /* Skip any whitespace between keyname and funname. */ |
| 1230 | for (; string[i] && whitespace (string[i]); i++); |
| 1231 | funname = &string[i]; |
| 1232 | |
| 1233 | /* Now isolate funname. |
| 1234 | For straight function names just look for whitespace, since |
| 1235 | that will signify the end of the string. But this could be a |
| 1236 | macro definition. In that case, the string is quoted, so skip |
| 1237 | to the matching delimiter. We allow the backslash to quote the |
| 1238 | delimiter characters in the macro body. */ |
| 1239 | /* This code exists to allow whitespace in macro expansions, which |
| 1240 | would otherwise be gobbled up by the next `for' loop.*/ |
| 1241 | /* XXX - it may be desirable to allow backslash quoting only if " is |
| 1242 | the quoted string delimiter, like the shell. */ |
| 1243 | if (*funname == '\'' || *funname == '"') |
| 1244 | { |
| 1245 | int delimiter, passc; |
| 1246 | |
| 1247 | delimiter = string[i++]; |
| 1248 | for (passc = 0; c = string[i]; i++) |
| 1249 | { |
| 1250 | if (passc) |
| 1251 | { |
| 1252 | passc = 0; |
| 1253 | continue; |
| 1254 | } |
| 1255 | |
| 1256 | if (c == '\\') |
| 1257 | { |
| 1258 | passc = 1; |
| 1259 | continue; |
| 1260 | } |
| 1261 | |
| 1262 | if (c == delimiter) |
| 1263 | break; |
| 1264 | } |
| 1265 | if (c) |
| 1266 | i++; |
| 1267 | } |
| 1268 | |
| 1269 | /* Advance to the end of the string. */ |
| 1270 | for (; string[i] && !whitespace (string[i]); i++); |
| 1271 | |
| 1272 | /* No extra whitespace at the end of the string. */ |
| 1273 | string[i] = '\0'; |
| 1274 | |
| 1275 | /* Handle equivalency bindings here. Make the left-hand side be exactly |
| 1276 | whatever the right-hand evaluates to, including keymaps. */ |
| 1277 | if (equivalency) |
| 1278 | { |
| 1279 | return 0; |
| 1280 | } |
| 1281 | |
| 1282 | /* If this is a new-style key-binding, then do the binding with |
| 1283 | rl_bind_keyseq (). Otherwise, let the older code deal with it. */ |
| 1284 | if (*string == '"') |
| 1285 | { |
| 1286 | char *seq; |
| 1287 | register int j, k, passc; |
| 1288 | |
| 1289 | seq = (char *)xmalloc (1 + strlen (string)); |
| 1290 | for (j = 1, k = passc = 0; string[j]; j++) |
| 1291 | { |
| 1292 | /* Allow backslash to quote characters, but leave them in place. |
| 1293 | This allows a string to end with a backslash quoting another |
| 1294 | backslash, or with a backslash quoting a double quote. The |
| 1295 | backslashes are left in place for rl_translate_keyseq (). */ |
| 1296 | if (passc || (string[j] == '\\')) |
| 1297 | { |
| 1298 | seq[k++] = string[j]; |
| 1299 | passc = !passc; |
| 1300 | continue; |
| 1301 | } |
| 1302 | |
| 1303 | if (string[j] == '"') |
| 1304 | break; |
| 1305 | |
| 1306 | seq[k++] = string[j]; |
| 1307 | } |
| 1308 | seq[k] = '\0'; |
| 1309 | |
| 1310 | /* Binding macro? */ |
| 1311 | if (*funname == '\'' || *funname == '"') |
| 1312 | { |
| 1313 | j = strlen (funname); |
| 1314 | |
| 1315 | /* Remove the delimiting quotes from each end of FUNNAME. */ |
| 1316 | if (j && funname[j - 1] == *funname) |
| 1317 | funname[j - 1] = '\0'; |
| 1318 | |
| 1319 | rl_macro_bind (seq, &funname[1], _rl_keymap); |
| 1320 | } |
| 1321 | else |
| 1322 | rl_bind_keyseq (seq, rl_named_function (funname)); |
| 1323 | |
| 1324 | free (seq); |
| 1325 | return 0; |
| 1326 | } |
| 1327 | |
| 1328 | /* Get the actual character we want to deal with. */ |
| 1329 | kname = strrchr (string, '-'); |
| 1330 | if (!kname) |
| 1331 | kname = string; |
| 1332 | else |
| 1333 | kname++; |
| 1334 | |
| 1335 | key = glean_key_from_name (kname); |
| 1336 | |
| 1337 | /* Add in control and meta bits. */ |
| 1338 | if (substring_member_of_array (string, _rl_possible_control_prefixes)) |
| 1339 | key = CTRL (_rl_to_upper (key)); |
| 1340 | |
| 1341 | if (substring_member_of_array (string, _rl_possible_meta_prefixes)) |
| 1342 | key = META (key); |
| 1343 | |
| 1344 | /* Temporary. Handle old-style keyname with macro-binding. */ |
| 1345 | if (*funname == '\'' || *funname == '"') |
| 1346 | { |
| 1347 | char useq[2]; |
| 1348 | int fl = strlen (funname); |
| 1349 | |
| 1350 | useq[0] = key; useq[1] = '\0'; |
| 1351 | if (fl && funname[fl - 1] == *funname) |
| 1352 | funname[fl - 1] = '\0'; |
| 1353 | |
| 1354 | rl_macro_bind (useq, &funname[1], _rl_keymap); |
| 1355 | } |
| 1356 | #if defined (PREFIX_META_HACK) |
| 1357 | /* Ugly, but working hack to keep prefix-meta around. */ |
| 1358 | else if (_rl_stricmp (funname, "prefix-meta") == 0) |
| 1359 | { |
| 1360 | char seq[2]; |
| 1361 | |
| 1362 | seq[0] = key; |
| 1363 | seq[1] = '\0'; |
| 1364 | rl_generic_bind (ISKMAP, seq, (char *)emacs_meta_keymap, _rl_keymap); |
| 1365 | } |
| 1366 | #endif /* PREFIX_META_HACK */ |
| 1367 | else |
| 1368 | rl_bind_key (key, rl_named_function (funname)); |
| 1369 | return 0; |
| 1370 | } |
| 1371 | |
| 1372 | /* Simple structure for boolean readline variables (i.e., those that can |
| 1373 | have one of two values; either "On" or 1 for truth, or "Off" or 0 for |
| 1374 | false. */ |
| 1375 | |
| 1376 | #define V_SPECIAL 0x1 |
| 1377 | |
| 1378 | static struct { |
| 1379 | const char *name; |
| 1380 | int *value; |
| 1381 | int flags; |
| 1382 | } boolean_varlist [] = { |
| 1383 | { "bind-tty-special-chars", &_rl_bind_stty_chars, 0 }, |
| 1384 | { "blink-matching-paren", &rl_blink_matching_paren, V_SPECIAL }, |
| 1385 | { "byte-oriented", &rl_byte_oriented, 0 }, |
| 1386 | { "completion-ignore-case", &_rl_completion_case_fold, 0 }, |
| 1387 | { "convert-meta", &_rl_convert_meta_chars_to_ascii, 0 }, |
| 1388 | { "disable-completion", &rl_inhibit_completion, 0 }, |
| 1389 | { "enable-keypad", &_rl_enable_keypad, 0 }, |
| 1390 | { "expand-tilde", &rl_complete_with_tilde_expansion, 0 }, |
| 1391 | { "history-preserve-point", &_rl_history_preserve_point, 0 }, |
| 1392 | { "horizontal-scroll-mode", &_rl_horizontal_scroll_mode, 0 }, |
| 1393 | { "input-meta", &_rl_meta_flag, 0 }, |
| 1394 | { "mark-directories", &_rl_complete_mark_directories, 0 }, |
| 1395 | { "mark-modified-lines", &_rl_mark_modified_lines, 0 }, |
| 1396 | { "mark-symlinked-directories", &_rl_complete_mark_symlink_dirs, 0 }, |
| 1397 | { "match-hidden-files", &_rl_match_hidden_files, 0 }, |
| 1398 | { "meta-flag", &_rl_meta_flag, 0 }, |
| 1399 | { "output-meta", &_rl_output_meta_chars, 0 }, |
| 1400 | { "page-completions", &_rl_page_completions, 0 }, |
| 1401 | { "prefer-visible-bell", &_rl_prefer_visible_bell, V_SPECIAL }, |
| 1402 | { "print-completions-horizontally", &_rl_print_completions_horizontally, 0 }, |
| 1403 | { "show-all-if-ambiguous", &_rl_complete_show_all, 0 }, |
| 1404 | { "show-all-if-unmodified", &_rl_complete_show_unmodified, 0 }, |
| 1405 | #if defined (VISIBLE_STATS) |
| 1406 | { "visible-stats", &rl_visible_stats, 0 }, |
| 1407 | #endif /* VISIBLE_STATS */ |
| 1408 | { (char *)NULL, (int *)NULL } |
| 1409 | }; |
| 1410 | |
| 1411 | static int |
| 1412 | find_boolean_var (name) |
| 1413 | const char *name; |
| 1414 | { |
| 1415 | register int i; |
| 1416 | |
| 1417 | for (i = 0; boolean_varlist[i].name; i++) |
| 1418 | if (_rl_stricmp (name, boolean_varlist[i].name) == 0) |
| 1419 | return i; |
| 1420 | return -1; |
| 1421 | } |
| 1422 | |
| 1423 | /* Hooks for handling special boolean variables, where a |
| 1424 | function needs to be called or another variable needs |
| 1425 | to be changed when they're changed. */ |
| 1426 | static void |
| 1427 | hack_special_boolean_var (i) |
| 1428 | int i; |
| 1429 | { |
| 1430 | const char *name; |
| 1431 | |
| 1432 | name = boolean_varlist[i].name; |
| 1433 | |
| 1434 | if (_rl_stricmp (name, "blink-matching-paren") == 0) |
| 1435 | _rl_enable_paren_matching (rl_blink_matching_paren); |
| 1436 | else if (_rl_stricmp (name, "prefer-visible-bell") == 0) |
| 1437 | { |
| 1438 | if (_rl_prefer_visible_bell) |
| 1439 | _rl_bell_preference = VISIBLE_BELL; |
| 1440 | else |
| 1441 | _rl_bell_preference = AUDIBLE_BELL; |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | typedef int _rl_sv_func_t PARAMS((const char *)); |
| 1446 | |
| 1447 | /* These *must* correspond to the array indices for the appropriate |
| 1448 | string variable. (Though they're not used right now.) */ |
| 1449 | #define V_BELLSTYLE 0 |
| 1450 | #define V_COMBEGIN 1 |
| 1451 | #define V_EDITMODE 2 |
| 1452 | #define V_ISRCHTERM 3 |
| 1453 | #define V_KEYMAP 4 |
| 1454 | |
| 1455 | #define V_STRING 1 |
| 1456 | #define V_INT 2 |
| 1457 | |
| 1458 | /* Forward declarations */ |
| 1459 | static int sv_bell_style PARAMS((const char *)); |
| 1460 | static int sv_combegin PARAMS((const char *)); |
| 1461 | static int sv_compquery PARAMS((const char *)); |
| 1462 | static int sv_editmode PARAMS((const char *)); |
| 1463 | static int sv_isrchterm PARAMS((const char *)); |
| 1464 | static int sv_keymap PARAMS((const char *)); |
| 1465 | |
| 1466 | static struct { |
| 1467 | const char *name; |
| 1468 | int flags; |
| 1469 | _rl_sv_func_t *set_func; |
| 1470 | } string_varlist[] = { |
| 1471 | { "bell-style", V_STRING, sv_bell_style }, |
| 1472 | { "comment-begin", V_STRING, sv_combegin }, |
| 1473 | { "completion-query-items", V_INT, sv_compquery }, |
| 1474 | { "editing-mode", V_STRING, sv_editmode }, |
| 1475 | { "isearch-terminators", V_STRING, sv_isrchterm }, |
| 1476 | { "keymap", V_STRING, sv_keymap }, |
| 1477 | { (char *)NULL, 0 } |
| 1478 | }; |
| 1479 | |
| 1480 | static int |
| 1481 | find_string_var (name) |
| 1482 | const char *name; |
| 1483 | { |
| 1484 | register int i; |
| 1485 | |
| 1486 | for (i = 0; string_varlist[i].name; i++) |
| 1487 | if (_rl_stricmp (name, string_varlist[i].name) == 0) |
| 1488 | return i; |
| 1489 | return -1; |
| 1490 | } |
| 1491 | |
| 1492 | /* A boolean value that can appear in a `set variable' command is true if |
| 1493 | the value is null or empty, `on' (case-insenstive), or "1". Any other |
| 1494 | values result in 0 (false). */ |
| 1495 | static int |
| 1496 | bool_to_int (value) |
| 1497 | const char *value; |
| 1498 | { |
| 1499 | return (value == 0 || *value == '\0' || |
| 1500 | (_rl_stricmp (value, "on") == 0) || |
| 1501 | (value[0] == '1' && value[1] == '\0')); |
| 1502 | } |
| 1503 | |
| 1504 | char * |
| 1505 | rl_variable_value (name) |
| 1506 | const char *name; |
| 1507 | { |
| 1508 | register int i; |
| 1509 | int v; |
| 1510 | char *ret; |
| 1511 | |
| 1512 | /* Check for simple variables first. */ |
| 1513 | i = find_boolean_var (name); |
| 1514 | if (i >= 0) |
| 1515 | return (*boolean_varlist[i].value ? "on" : "off"); |
| 1516 | |
| 1517 | i = find_string_var (name); |
| 1518 | if (i >= 0) |
| 1519 | return (_rl_get_string_variable_value (string_varlist[i].name)); |
| 1520 | |
| 1521 | /* Unknown variable names return NULL. */ |
| 1522 | return 0; |
| 1523 | } |
| 1524 | |
| 1525 | int |
| 1526 | rl_variable_bind (name, value) |
| 1527 | const char *name, *value; |
| 1528 | { |
| 1529 | register int i; |
| 1530 | int v; |
| 1531 | |
| 1532 | /* Check for simple variables first. */ |
| 1533 | i = find_boolean_var (name); |
| 1534 | if (i >= 0) |
| 1535 | { |
| 1536 | *boolean_varlist[i].value = bool_to_int (value); |
| 1537 | if (boolean_varlist[i].flags & V_SPECIAL) |
| 1538 | hack_special_boolean_var (i); |
| 1539 | return 0; |
| 1540 | } |
| 1541 | |
| 1542 | i = find_string_var (name); |
| 1543 | |
| 1544 | /* For the time being, unknown variable names or string names without a |
| 1545 | handler function are simply ignored. */ |
| 1546 | if (i < 0 || string_varlist[i].set_func == 0) |
| 1547 | return 0; |
| 1548 | |
| 1549 | v = (*string_varlist[i].set_func) (value); |
| 1550 | return v; |
| 1551 | } |
| 1552 | |
| 1553 | static int |
| 1554 | sv_editmode (value) |
| 1555 | const char *value; |
| 1556 | { |
| 1557 | if (_rl_strnicmp (value, "vi", 2) == 0) |
| 1558 | { |
| 1559 | #if defined (VI_MODE) |
| 1560 | _rl_keymap = vi_insertion_keymap; |
| 1561 | rl_editing_mode = vi_mode; |
| 1562 | #endif /* VI_MODE */ |
| 1563 | return 0; |
| 1564 | } |
| 1565 | else if (_rl_strnicmp (value, "emacs", 5) == 0) |
| 1566 | { |
| 1567 | _rl_keymap = emacs_standard_keymap; |
| 1568 | rl_editing_mode = emacs_mode; |
| 1569 | return 0; |
| 1570 | } |
| 1571 | return 1; |
| 1572 | } |
| 1573 | |
| 1574 | static int |
| 1575 | sv_combegin (value) |
| 1576 | const char *value; |
| 1577 | { |
| 1578 | if (value && *value) |
| 1579 | { |
| 1580 | FREE (_rl_comment_begin); |
| 1581 | _rl_comment_begin = savestring (value); |
| 1582 | return 0; |
| 1583 | } |
| 1584 | return 1; |
| 1585 | } |
| 1586 | |
| 1587 | static int |
| 1588 | sv_compquery (value) |
| 1589 | const char *value; |
| 1590 | { |
| 1591 | int nval = 100; |
| 1592 | |
| 1593 | if (value && *value) |
| 1594 | { |
| 1595 | nval = atoi (value); |
| 1596 | if (nval < 0) |
| 1597 | nval = 0; |
| 1598 | } |
| 1599 | rl_completion_query_items = nval; |
| 1600 | return 0; |
| 1601 | } |
| 1602 | |
| 1603 | static int |
| 1604 | sv_keymap (value) |
| 1605 | const char *value; |
| 1606 | { |
| 1607 | Keymap kmap; |
| 1608 | |
| 1609 | kmap = rl_get_keymap_by_name (value); |
| 1610 | if (kmap) |
| 1611 | { |
| 1612 | rl_set_keymap (kmap); |
| 1613 | return 0; |
| 1614 | } |
| 1615 | return 1; |
| 1616 | } |
| 1617 | |
| 1618 | static int |
| 1619 | sv_bell_style (value) |
| 1620 | const char *value; |
| 1621 | { |
| 1622 | if (value == 0 || *value == '\0') |
| 1623 | _rl_bell_preference = AUDIBLE_BELL; |
| 1624 | else if (_rl_stricmp (value, "none") == 0 || _rl_stricmp (value, "off") == 0) |
| 1625 | _rl_bell_preference = NO_BELL; |
| 1626 | else if (_rl_stricmp (value, "audible") == 0 || _rl_stricmp (value, "on") == 0) |
| 1627 | _rl_bell_preference = AUDIBLE_BELL; |
| 1628 | else if (_rl_stricmp (value, "visible") == 0) |
| 1629 | _rl_bell_preference = VISIBLE_BELL; |
| 1630 | else |
| 1631 | return 1; |
| 1632 | return 0; |
| 1633 | } |
| 1634 | |
| 1635 | static int |
| 1636 | sv_isrchterm (value) |
| 1637 | const char *value; |
| 1638 | { |
| 1639 | int beg, end, delim; |
| 1640 | char *v; |
| 1641 | |
| 1642 | if (value == 0) |
| 1643 | return 1; |
| 1644 | |
| 1645 | /* Isolate the value and translate it into a character string. */ |
| 1646 | v = savestring (value); |
| 1647 | FREE (_rl_isearch_terminators); |
| 1648 | if (v[0] == '"' || v[0] == '\'') |
| 1649 | { |
| 1650 | delim = v[0]; |
| 1651 | for (beg = end = 1; v[end] && v[end] != delim; end++) |
| 1652 | ; |
| 1653 | } |
| 1654 | else |
| 1655 | { |
| 1656 | for (beg = end = 0; whitespace (v[end]) == 0; end++) |
| 1657 | ; |
| 1658 | } |
| 1659 | |
| 1660 | v[end] = '\0'; |
| 1661 | |
| 1662 | /* The value starts at v + beg. Translate it into a character string. */ |
| 1663 | _rl_isearch_terminators = (char *)xmalloc (2 * strlen (v) + 1); |
| 1664 | rl_translate_keyseq (v + beg, _rl_isearch_terminators, &end); |
| 1665 | _rl_isearch_terminators[end] = '\0'; |
| 1666 | |
| 1667 | free (v); |
| 1668 | return 0; |
| 1669 | } |
| 1670 | |
| 1671 | /* Return the character which matches NAME. |
| 1672 | For example, `Space' returns ' '. */ |
| 1673 | |
| 1674 | typedef struct { |
| 1675 | const char *name; |
| 1676 | int value; |
| 1677 | } assoc_list; |
| 1678 | |
| 1679 | static assoc_list name_key_alist[] = { |
| 1680 | { "DEL", 0x7f }, |
| 1681 | { "ESC", '\033' }, |
| 1682 | { "Escape", '\033' }, |
| 1683 | { "LFD", '\n' }, |
| 1684 | { "Newline", '\n' }, |
| 1685 | { "RET", '\r' }, |
| 1686 | { "Return", '\r' }, |
| 1687 | { "Rubout", 0x7f }, |
| 1688 | { "SPC", ' ' }, |
| 1689 | { "Space", ' ' }, |
| 1690 | { "Tab", 0x09 }, |
| 1691 | { (char *)0x0, 0 } |
| 1692 | }; |
| 1693 | |
| 1694 | static int |
| 1695 | glean_key_from_name (name) |
| 1696 | char *name; |
| 1697 | { |
| 1698 | register int i; |
| 1699 | |
| 1700 | for (i = 0; name_key_alist[i].name; i++) |
| 1701 | if (_rl_stricmp (name, name_key_alist[i].name) == 0) |
| 1702 | return (name_key_alist[i].value); |
| 1703 | |
| 1704 | return (*(unsigned char *)name); /* XXX was return (*name) */ |
| 1705 | } |
| 1706 | |
| 1707 | /* Auxiliary functions to manage keymaps. */ |
| 1708 | static struct { |
| 1709 | const char *name; |
| 1710 | Keymap map; |
| 1711 | } keymap_names[] = { |
| 1712 | { "emacs", emacs_standard_keymap }, |
| 1713 | { "emacs-standard", emacs_standard_keymap }, |
| 1714 | { "emacs-meta", emacs_meta_keymap }, |
| 1715 | { "emacs-ctlx", emacs_ctlx_keymap }, |
| 1716 | #if defined (VI_MODE) |
| 1717 | { "vi", vi_movement_keymap }, |
| 1718 | { "vi-move", vi_movement_keymap }, |
| 1719 | { "vi-command", vi_movement_keymap }, |
| 1720 | { "vi-insert", vi_insertion_keymap }, |
| 1721 | #endif /* VI_MODE */ |
| 1722 | { (char *)0x0, (Keymap)0x0 } |
| 1723 | }; |
| 1724 | |
| 1725 | Keymap |
| 1726 | rl_get_keymap_by_name (name) |
| 1727 | const char *name; |
| 1728 | { |
| 1729 | register int i; |
| 1730 | |
| 1731 | for (i = 0; keymap_names[i].name; i++) |
| 1732 | if (_rl_stricmp (name, keymap_names[i].name) == 0) |
| 1733 | return (keymap_names[i].map); |
| 1734 | return ((Keymap) NULL); |
| 1735 | } |
| 1736 | |
| 1737 | char * |
| 1738 | rl_get_keymap_name (map) |
| 1739 | Keymap map; |
| 1740 | { |
| 1741 | register int i; |
| 1742 | for (i = 0; keymap_names[i].name; i++) |
| 1743 | if (map == keymap_names[i].map) |
| 1744 | return ((char *)keymap_names[i].name); |
| 1745 | return ((char *)NULL); |
| 1746 | } |
| 1747 | |
| 1748 | void |
| 1749 | rl_set_keymap (map) |
| 1750 | Keymap map; |
| 1751 | { |
| 1752 | if (map) |
| 1753 | _rl_keymap = map; |
| 1754 | } |
| 1755 | |
| 1756 | Keymap |
| 1757 | rl_get_keymap () |
| 1758 | { |
| 1759 | return (_rl_keymap); |
| 1760 | } |
| 1761 | |
| 1762 | void |
| 1763 | rl_set_keymap_from_edit_mode () |
| 1764 | { |
| 1765 | if (rl_editing_mode == emacs_mode) |
| 1766 | _rl_keymap = emacs_standard_keymap; |
| 1767 | #if defined (VI_MODE) |
| 1768 | else if (rl_editing_mode == vi_mode) |
| 1769 | _rl_keymap = vi_insertion_keymap; |
| 1770 | #endif /* VI_MODE */ |
| 1771 | } |
| 1772 | |
| 1773 | char * |
| 1774 | rl_get_keymap_name_from_edit_mode () |
| 1775 | { |
| 1776 | if (rl_editing_mode == emacs_mode) |
| 1777 | return "emacs"; |
| 1778 | #if defined (VI_MODE) |
| 1779 | else if (rl_editing_mode == vi_mode) |
| 1780 | return "vi"; |
| 1781 | #endif /* VI_MODE */ |
| 1782 | else |
| 1783 | return "none"; |
| 1784 | } |
| 1785 | |
| 1786 | /* **************************************************************** */ |
| 1787 | /* */ |
| 1788 | /* Key Binding and Function Information */ |
| 1789 | /* */ |
| 1790 | /* **************************************************************** */ |
| 1791 | |
| 1792 | /* Each of the following functions produces information about the |
| 1793 | state of keybindings and functions known to Readline. The info |
| 1794 | is always printed to rl_outstream, and in such a way that it can |
| 1795 | be read back in (i.e., passed to rl_parse_and_bind ()). */ |
| 1796 | |
| 1797 | /* Print the names of functions known to Readline. */ |
| 1798 | void |
| 1799 | rl_list_funmap_names () |
| 1800 | { |
| 1801 | register int i; |
| 1802 | const char **funmap_names; |
| 1803 | |
| 1804 | funmap_names = rl_funmap_names (); |
| 1805 | |
| 1806 | if (!funmap_names) |
| 1807 | return; |
| 1808 | |
| 1809 | for (i = 0; funmap_names[i]; i++) |
| 1810 | fprintf (rl_outstream, "%s\n", funmap_names[i]); |
| 1811 | |
| 1812 | free (funmap_names); |
| 1813 | } |
| 1814 | |
| 1815 | static char * |
| 1816 | _rl_get_keyname (key) |
| 1817 | int key; |
| 1818 | { |
| 1819 | char *keyname; |
| 1820 | int i, c; |
| 1821 | |
| 1822 | keyname = (char *)xmalloc (8); |
| 1823 | |
| 1824 | c = key; |
| 1825 | /* Since this is going to be used to write out keysequence-function |
| 1826 | pairs for possible inclusion in an inputrc file, we don't want to |
| 1827 | do any special meta processing on KEY. */ |
| 1828 | |
| 1829 | #if 1 |
| 1830 | /* XXX - Experimental */ |
| 1831 | /* We might want to do this, but the old version of the code did not. */ |
| 1832 | |
| 1833 | /* If this is an escape character, we don't want to do any more processing. |
| 1834 | Just add the special ESC key sequence and return. */ |
| 1835 | if (c == ESC) |
| 1836 | { |
| 1837 | keyname[0] = '\\'; |
| 1838 | keyname[1] = 'e'; |
| 1839 | keyname[2] = '\0'; |
| 1840 | return keyname; |
| 1841 | } |
| 1842 | #endif |
| 1843 | |
| 1844 | /* RUBOUT is translated directly into \C-? */ |
| 1845 | if (key == RUBOUT) |
| 1846 | { |
| 1847 | keyname[0] = '\\'; |
| 1848 | keyname[1] = 'C'; |
| 1849 | keyname[2] = '-'; |
| 1850 | keyname[3] = '?'; |
| 1851 | keyname[4] = '\0'; |
| 1852 | return keyname; |
| 1853 | } |
| 1854 | |
| 1855 | i = 0; |
| 1856 | /* Now add special prefixes needed for control characters. This can |
| 1857 | potentially change C. */ |
| 1858 | if (CTRL_CHAR (c)) |
| 1859 | { |
| 1860 | keyname[i++] = '\\'; |
| 1861 | keyname[i++] = 'C'; |
| 1862 | keyname[i++] = '-'; |
| 1863 | c = _rl_to_lower (UNCTRL (c)); |
| 1864 | } |
| 1865 | |
| 1866 | /* XXX experimental code. Turn the characters that are not ASCII or |
| 1867 | ISO Latin 1 (128 - 159) into octal escape sequences (\200 - \237). |
| 1868 | This changes C. */ |
| 1869 | if (c >= 128 && c <= 159) |
| 1870 | { |
| 1871 | keyname[i++] = '\\'; |
| 1872 | keyname[i++] = '2'; |
| 1873 | c -= 128; |
| 1874 | keyname[i++] = (c / 8) + '0'; |
| 1875 | c = (c % 8) + '0'; |
| 1876 | } |
| 1877 | |
| 1878 | /* Now, if the character needs to be quoted with a backslash, do that. */ |
| 1879 | if (c == '\\' || c == '"') |
| 1880 | keyname[i++] = '\\'; |
| 1881 | |
| 1882 | /* Now add the key, terminate the string, and return it. */ |
| 1883 | keyname[i++] = (char) c; |
| 1884 | keyname[i] = '\0'; |
| 1885 | |
| 1886 | return keyname; |
| 1887 | } |
| 1888 | |
| 1889 | /* Return a NULL terminated array of strings which represent the key |
| 1890 | sequences that are used to invoke FUNCTION in MAP. */ |
| 1891 | char ** |
| 1892 | rl_invoking_keyseqs_in_map (function, map) |
| 1893 | rl_command_func_t *function; |
| 1894 | Keymap map; |
| 1895 | { |
| 1896 | register int key; |
| 1897 | char **result; |
| 1898 | int result_index, result_size; |
| 1899 | |
| 1900 | result = (char **)NULL; |
| 1901 | result_index = result_size = 0; |
| 1902 | |
| 1903 | for (key = 0; key < KEYMAP_SIZE; key++) |
| 1904 | { |
| 1905 | switch (map[key].type) |
| 1906 | { |
| 1907 | case ISMACR: |
| 1908 | /* Macros match, if, and only if, the pointers are identical. |
| 1909 | Thus, they are treated exactly like functions in here. */ |
| 1910 | case ISFUNC: |
| 1911 | /* If the function in the keymap is the one we are looking for, |
| 1912 | then add the current KEY to the list of invoking keys. */ |
| 1913 | if (map[key].function == function) |
| 1914 | { |
| 1915 | char *keyname; |
| 1916 | |
| 1917 | keyname = _rl_get_keyname (key); |
| 1918 | |
| 1919 | if (result_index + 2 > result_size) |
| 1920 | { |
| 1921 | result_size += 10; |
| 1922 | result = (char **)xrealloc (result, result_size * sizeof (char *)); |
| 1923 | } |
| 1924 | |
| 1925 | result[result_index++] = keyname; |
| 1926 | result[result_index] = (char *)NULL; |
| 1927 | } |
| 1928 | break; |
| 1929 | |
| 1930 | case ISKMAP: |
| 1931 | { |
| 1932 | char **seqs; |
| 1933 | register int i; |
| 1934 | |
| 1935 | /* Find the list of keyseqs in this map which have FUNCTION as |
| 1936 | their target. Add the key sequences found to RESULT. */ |
| 1937 | if (map[key].function) |
| 1938 | seqs = |
| 1939 | rl_invoking_keyseqs_in_map (function, FUNCTION_TO_KEYMAP (map, key)); |
| 1940 | else |
| 1941 | break; |
| 1942 | |
| 1943 | if (seqs == 0) |
| 1944 | break; |
| 1945 | |
| 1946 | for (i = 0; seqs[i]; i++) |
| 1947 | { |
| 1948 | char *keyname = (char *)xmalloc (6 + strlen (seqs[i])); |
| 1949 | |
| 1950 | if (key == ESC) |
| 1951 | #if 0 |
| 1952 | sprintf (keyname, "\\e"); |
| 1953 | #else |
| 1954 | /* XXX - experimental */ |
| 1955 | sprintf (keyname, "\\M-"); |
| 1956 | #endif |
| 1957 | else if (CTRL_CHAR (key)) |
| 1958 | sprintf (keyname, "\\C-%c", _rl_to_lower (UNCTRL (key))); |
| 1959 | else if (key == RUBOUT) |
| 1960 | sprintf (keyname, "\\C-?"); |
| 1961 | else if (key == '\\' || key == '"') |
| 1962 | { |
| 1963 | keyname[0] = '\\'; |
| 1964 | keyname[1] = (char) key; |
| 1965 | keyname[2] = '\0'; |
| 1966 | } |
| 1967 | else |
| 1968 | { |
| 1969 | keyname[0] = (char) key; |
| 1970 | keyname[1] = '\0'; |
| 1971 | } |
| 1972 | |
| 1973 | strcat (keyname, seqs[i]); |
| 1974 | free (seqs[i]); |
| 1975 | |
| 1976 | if (result_index + 2 > result_size) |
| 1977 | { |
| 1978 | result_size += 10; |
| 1979 | result = (char **)xrealloc (result, result_size * sizeof (char *)); |
| 1980 | } |
| 1981 | |
| 1982 | result[result_index++] = keyname; |
| 1983 | result[result_index] = (char *)NULL; |
| 1984 | } |
| 1985 | |
| 1986 | free (seqs); |
| 1987 | } |
| 1988 | break; |
| 1989 | } |
| 1990 | } |
| 1991 | return (result); |
| 1992 | } |
| 1993 | |
| 1994 | /* Return a NULL terminated array of strings which represent the key |
| 1995 | sequences that can be used to invoke FUNCTION using the current keymap. */ |
| 1996 | char ** |
| 1997 | rl_invoking_keyseqs (function) |
| 1998 | rl_command_func_t *function; |
| 1999 | { |
| 2000 | return (rl_invoking_keyseqs_in_map (function, _rl_keymap)); |
| 2001 | } |
| 2002 | |
| 2003 | /* Print all of the functions and their bindings to rl_outstream. If |
| 2004 | PRINT_READABLY is non-zero, then print the output in such a way |
| 2005 | that it can be read back in. */ |
| 2006 | void |
| 2007 | rl_function_dumper (print_readably) |
| 2008 | int print_readably; |
| 2009 | { |
| 2010 | register int i; |
| 2011 | const char **names; |
| 2012 | const char *name; |
| 2013 | |
| 2014 | names = rl_funmap_names (); |
| 2015 | |
| 2016 | fprintf (rl_outstream, "\n"); |
| 2017 | |
| 2018 | for (i = 0; name = names[i]; i++) |
| 2019 | { |
| 2020 | rl_command_func_t *function; |
| 2021 | char **invokers; |
| 2022 | |
| 2023 | function = rl_named_function (name); |
| 2024 | invokers = rl_invoking_keyseqs_in_map (function, _rl_keymap); |
| 2025 | |
| 2026 | if (print_readably) |
| 2027 | { |
| 2028 | if (!invokers) |
| 2029 | fprintf (rl_outstream, "# %s (not bound)\n", name); |
| 2030 | else |
| 2031 | { |
| 2032 | register int j; |
| 2033 | |
| 2034 | for (j = 0; invokers[j]; j++) |
| 2035 | { |
| 2036 | fprintf (rl_outstream, "\"%s\": %s\n", |
| 2037 | invokers[j], name); |
| 2038 | free (invokers[j]); |
| 2039 | } |
| 2040 | |
| 2041 | free (invokers); |
| 2042 | } |
| 2043 | } |
| 2044 | else |
| 2045 | { |
| 2046 | if (!invokers) |
| 2047 | fprintf (rl_outstream, "%s is not bound to any keys\n", |
| 2048 | name); |
| 2049 | else |
| 2050 | { |
| 2051 | register int j; |
| 2052 | |
| 2053 | fprintf (rl_outstream, "%s can be found on ", name); |
| 2054 | |
| 2055 | for (j = 0; invokers[j] && j < 5; j++) |
| 2056 | { |
| 2057 | fprintf (rl_outstream, "\"%s\"%s", invokers[j], |
| 2058 | invokers[j + 1] ? ", " : ".\n"); |
| 2059 | } |
| 2060 | |
| 2061 | if (j == 5 && invokers[j]) |
| 2062 | fprintf (rl_outstream, "...\n"); |
| 2063 | |
| 2064 | for (j = 0; invokers[j]; j++) |
| 2065 | free (invokers[j]); |
| 2066 | |
| 2067 | free (invokers); |
| 2068 | } |
| 2069 | } |
| 2070 | } |
| 2071 | } |
| 2072 | |
| 2073 | /* Print all of the current functions and their bindings to |
| 2074 | rl_outstream. If an explicit argument is given, then print |
| 2075 | the output in such a way that it can be read back in. */ |
| 2076 | int |
| 2077 | rl_dump_functions (count, key) |
| 2078 | int count, key; |
| 2079 | { |
| 2080 | if (rl_dispatching) |
| 2081 | fprintf (rl_outstream, "\r\n"); |
| 2082 | rl_function_dumper (rl_explicit_arg); |
| 2083 | rl_on_new_line (); |
| 2084 | return (0); |
| 2085 | } |
| 2086 | |
| 2087 | static void |
| 2088 | _rl_macro_dumper_internal (print_readably, map, prefix) |
| 2089 | int print_readably; |
| 2090 | Keymap map; |
| 2091 | char *prefix; |
| 2092 | { |
| 2093 | register int key; |
| 2094 | char *keyname, *out; |
| 2095 | int prefix_len; |
| 2096 | |
| 2097 | for (key = 0; key < KEYMAP_SIZE; key++) |
| 2098 | { |
| 2099 | switch (map[key].type) |
| 2100 | { |
| 2101 | case ISMACR: |
| 2102 | keyname = _rl_get_keyname (key); |
| 2103 | out = _rl_untranslate_macro_value ((char *)map[key].function); |
| 2104 | |
| 2105 | if (print_readably) |
| 2106 | fprintf (rl_outstream, "\"%s%s\": \"%s\"\n", prefix ? prefix : "", |
| 2107 | keyname, |
| 2108 | out ? out : ""); |
| 2109 | else |
| 2110 | fprintf (rl_outstream, "%s%s outputs %s\n", prefix ? prefix : "", |
| 2111 | keyname, |
| 2112 | out ? out : ""); |
| 2113 | free (keyname); |
| 2114 | free (out); |
| 2115 | break; |
| 2116 | case ISFUNC: |
| 2117 | break; |
| 2118 | case ISKMAP: |
| 2119 | prefix_len = prefix ? strlen (prefix) : 0; |
| 2120 | if (key == ESC) |
| 2121 | { |
| 2122 | keyname = (char *)xmalloc (3 + prefix_len); |
| 2123 | if (prefix) |
| 2124 | strcpy (keyname, prefix); |
| 2125 | keyname[prefix_len] = '\\'; |
| 2126 | keyname[prefix_len + 1] = 'e'; |
| 2127 | keyname[prefix_len + 2] = '\0'; |
| 2128 | } |
| 2129 | else |
| 2130 | { |
| 2131 | keyname = _rl_get_keyname (key); |
| 2132 | if (prefix) |
| 2133 | { |
| 2134 | out = (char *)xmalloc (strlen (keyname) + prefix_len + 1); |
| 2135 | strcpy (out, prefix); |
| 2136 | strcpy (out + prefix_len, keyname); |
| 2137 | free (keyname); |
| 2138 | keyname = out; |
| 2139 | } |
| 2140 | } |
| 2141 | |
| 2142 | _rl_macro_dumper_internal (print_readably, FUNCTION_TO_KEYMAP (map, key), keyname); |
| 2143 | free (keyname); |
| 2144 | break; |
| 2145 | } |
| 2146 | } |
| 2147 | } |
| 2148 | |
| 2149 | void |
| 2150 | rl_macro_dumper (print_readably) |
| 2151 | int print_readably; |
| 2152 | { |
| 2153 | _rl_macro_dumper_internal (print_readably, _rl_keymap, (char *)NULL); |
| 2154 | } |
| 2155 | |
| 2156 | int |
| 2157 | rl_dump_macros (count, key) |
| 2158 | int count, key; |
| 2159 | { |
| 2160 | if (rl_dispatching) |
| 2161 | fprintf (rl_outstream, "\r\n"); |
| 2162 | rl_macro_dumper (rl_explicit_arg); |
| 2163 | rl_on_new_line (); |
| 2164 | return (0); |
| 2165 | } |
| 2166 | |
| 2167 | static char * |
| 2168 | _rl_get_string_variable_value (name) |
| 2169 | const char *name; |
| 2170 | { |
| 2171 | static char numbuf[32]; |
| 2172 | char *ret; |
| 2173 | int n; |
| 2174 | |
| 2175 | if (_rl_stricmp (name, "bell-style") == 0) |
| 2176 | { |
| 2177 | switch (_rl_bell_preference) |
| 2178 | { |
| 2179 | case NO_BELL: |
| 2180 | return "none"; |
| 2181 | case VISIBLE_BELL: |
| 2182 | return "visible"; |
| 2183 | case AUDIBLE_BELL: |
| 2184 | default: |
| 2185 | return "audible"; |
| 2186 | } |
| 2187 | } |
| 2188 | else if (_rl_stricmp (name, "comment-begin") == 0) |
| 2189 | return (_rl_comment_begin ? _rl_comment_begin : RL_COMMENT_BEGIN_DEFAULT); |
| 2190 | else if (_rl_stricmp (name, "completion-query-items") == 0) |
| 2191 | { |
| 2192 | sprintf (numbuf, "%d", rl_completion_query_items); |
| 2193 | return (numbuf); |
| 2194 | } |
| 2195 | else if (_rl_stricmp (name, "editing-mode") == 0) |
| 2196 | return (rl_get_keymap_name_from_edit_mode ()); |
| 2197 | else if (_rl_stricmp (name, "isearch-terminators") == 0) |
| 2198 | { |
| 2199 | if (_rl_isearch_terminators == 0) |
| 2200 | return 0; |
| 2201 | ret = _rl_untranslate_macro_value (_rl_isearch_terminators); |
| 2202 | if (ret) |
| 2203 | { |
| 2204 | strncpy (numbuf, ret, sizeof (numbuf) - 1); |
| 2205 | free (ret); |
| 2206 | numbuf[sizeof(numbuf) - 1] = '\0'; |
| 2207 | } |
| 2208 | else |
| 2209 | numbuf[0] = '\0'; |
| 2210 | return numbuf; |
| 2211 | } |
| 2212 | else if (_rl_stricmp (name, "keymap") == 0) |
| 2213 | { |
| 2214 | ret = rl_get_keymap_name (_rl_keymap); |
| 2215 | if (ret == 0) |
| 2216 | ret = rl_get_keymap_name_from_edit_mode (); |
| 2217 | return (ret ? ret : "none"); |
| 2218 | } |
| 2219 | else |
| 2220 | return (0); |
| 2221 | } |
| 2222 | |
| 2223 | void |
| 2224 | rl_variable_dumper (print_readably) |
| 2225 | int print_readably; |
| 2226 | { |
| 2227 | int i; |
| 2228 | char *v; |
| 2229 | |
| 2230 | for (i = 0; boolean_varlist[i].name; i++) |
| 2231 | { |
| 2232 | if (print_readably) |
| 2233 | fprintf (rl_outstream, "set %s %s\n", boolean_varlist[i].name, |
| 2234 | *boolean_varlist[i].value ? "on" : "off"); |
| 2235 | else |
| 2236 | fprintf (rl_outstream, "%s is set to `%s'\n", boolean_varlist[i].name, |
| 2237 | *boolean_varlist[i].value ? "on" : "off"); |
| 2238 | } |
| 2239 | |
| 2240 | for (i = 0; string_varlist[i].name; i++) |
| 2241 | { |
| 2242 | v = _rl_get_string_variable_value (string_varlist[i].name); |
| 2243 | if (v == 0) /* _rl_isearch_terminators can be NULL */ |
| 2244 | continue; |
| 2245 | if (print_readably) |
| 2246 | fprintf (rl_outstream, "set %s %s\n", string_varlist[i].name, v); |
| 2247 | else |
| 2248 | fprintf (rl_outstream, "%s is set to `%s'\n", string_varlist[i].name, v); |
| 2249 | } |
| 2250 | } |
| 2251 | |
| 2252 | /* Print all of the current variables and their values to |
| 2253 | rl_outstream. If an explicit argument is given, then print |
| 2254 | the output in such a way that it can be read back in. */ |
| 2255 | int |
| 2256 | rl_dump_variables (count, key) |
| 2257 | int count, key; |
| 2258 | { |
| 2259 | if (rl_dispatching) |
| 2260 | fprintf (rl_outstream, "\r\n"); |
| 2261 | rl_variable_dumper (rl_explicit_arg); |
| 2262 | rl_on_new_line (); |
| 2263 | return (0); |
| 2264 | } |
| 2265 | |
| 2266 | /* Return non-zero if any members of ARRAY are a substring in STRING. */ |
| 2267 | static int |
| 2268 | substring_member_of_array (string, array) |
| 2269 | char *string; |
| 2270 | const char **array; |
| 2271 | { |
| 2272 | while (*array) |
| 2273 | { |
| 2274 | if (_rl_strindex (string, *array)) |
| 2275 | return (1); |
| 2276 | array++; |
| 2277 | } |
| 2278 | return (0); |
| 2279 | } |