1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * getchar.c 12 * 13 * functions related with getting a character from the user/mapping/redo/... 14 * 15 * manipulations with redo buffer and stuff buffer 16 * mappings and abbreviations 17 */ 18 19 #include "vim.h" 20 21 /* 22 * These buffers are used for storing: 23 * - stuffed characters: A command that is translated into another command. 24 * - redo characters: will redo the last change. 25 * - recorded chracters: for the "q" command. 26 * 27 * The bytes are stored like in the typeahead buffer: 28 * - K_SPECIAL introduces a special key (two more bytes follow). A literal 29 * K_SPECIAL is stored as K_SPECIAL KS_SPECIAL KE_FILLER. 30 * - CSI introduces a GUI termcap code (also when gui.in_use is FALSE, 31 * otherwise switching the GUI on would make mappings invalid). 32 * A literal CSI is stored as CSI KS_EXTRA KE_CSI. 33 * These translations are also done on multi-byte characters! 34 * 35 * Escaping CSI bytes is done by the system-specific input functions, called 36 * by ui_inchar(). 37 * Escaping K_SPECIAL is done by inchar(). 38 * Un-escaping is done by vgetc(). 39 */ 40 41 #define MINIMAL_SIZE 20 /* minimal size for b_str */ 42 43 static struct buffheader redobuff = {{NULL, {NUL}}, NULL, 0, 0}; 44 static struct buffheader old_redobuff = {{NULL, {NUL}}, NULL, 0, 0}; 45 #if defined(FEAT_AUTOCMD) || defined(FEAT_EVAL) || defined(PROTO) 46 static struct buffheader save_redobuff = {{NULL, {NUL}}, NULL, 0, 0}; 47 static struct buffheader save_old_redobuff = {{NULL, {NUL}}, NULL, 0, 0}; 48 #endif 49 static struct buffheader recordbuff = {{NULL, {NUL}}, NULL, 0, 0}; 50 51 static int typeahead_char = 0; /* typeahead char that's not flushed */ 52 53 /* 54 * when block_redo is TRUE redo buffer will not be changed 55 * used by edit() to repeat insertions and 'V' command for redoing 56 */ 57 static int block_redo = FALSE; 58 59 /* 60 * Make a hash value for a mapping. 61 * "mode" is the lower 4 bits of the State for the mapping. 62 * "c1" is the first character of the "lhs". 63 * Returns a value between 0 and 255, index in maphash. 64 * Put Normal/Visual mode mappings mostly separately from Insert/Cmdline mode. 65 */ 66 #define MAP_HASH(mode, c1) (((mode) & (NORMAL + VISUAL + OP_PENDING)) ? (c1) : ((c1) ^ 0x80)) 67 68 /* 69 * Each mapping is put in one of the 256 hash lists, to speed up finding it. 70 */ 71 static mapblock_T *(maphash[256]); 72 static int maphash_valid = FALSE; 73 74 /* 75 * List used for abbreviations. 76 */ 77 static mapblock_T *first_abbr = NULL; /* first entry in abbrlist */ 78 79 static int KeyNoremap = FALSE; /* remapping disabled */ 80 81 /* 82 * variables used by vgetorpeek() and flush_buffers() 83 * 84 * typebuf.tb_buf[] contains all characters that are not consumed yet. 85 * typebuf.tb_buf[typebuf.tb_off] is the first valid character. 86 * typebuf.tb_buf[typebuf.tb_off + typebuf.tb_len - 1] is the last valid char. 87 * typebuf.tb_buf[typebuf.tb_off + typebuf.tb_len] must be NUL. 88 * The head of the buffer may contain the result of mappings, abbreviations 89 * and @a commands. The length of this part is typebuf.tb_maplen. 90 * typebuf.tb_silent is the part where <silent> applies. 91 * After the head are characters that come from the terminal. 92 * typebuf.tb_no_abbr_cnt is the number of characters in typebuf.tb_buf that 93 * should not be considered for abbreviations. 94 * Some parts of typebuf.tb_buf may not be mapped. These parts are remembered 95 * in typebuf.tb_noremap[], which is the same length as typebuf.tb_buf and 96 * contains RM_NONE for the characters that are not to be remapped. 97 * typebuf.tb_noremap[typebuf.tb_off] is the first valid flag. 98 * (typebuf has been put in globals.h, because check_termcode() needs it). 99 */ 100 #define RM_YES 0 /* tb_noremap: remap */ 101 #define RM_NONE 1 /* tb_noremap: don't remap */ 102 #define RM_SCRIPT 2 /* tb_noremap: remap local script mappings */ 103 #define RM_ABBR 4 /* tb_noremap: don't remap, do abbrev. */ 104 105 /* typebuf.tb_buf has three parts: room in front (for result of mappings), the 106 * middle for typeahead and room for new characters (which needs to be 3 * 107 * MAXMAPLEN) for the Amiga). 108 */ 109 #define TYPELEN_INIT (5 * (MAXMAPLEN + 3)) 110 static char_u typebuf_init[TYPELEN_INIT]; /* initial typebuf.tb_buf */ 111 static char_u noremapbuf_init[TYPELEN_INIT]; /* initial typebuf.tb_noremap */ 112 113 static int last_recorded_len = 0; /* number of last recorded chars */ 114 115 static char_u *get_buffcont __ARGS((struct buffheader *, int)); 116 static void add_buff __ARGS((struct buffheader *, char_u *, long n)); 117 static void add_num_buff __ARGS((struct buffheader *, long)); 118 static void add_char_buff __ARGS((struct buffheader *, int)); 119 static int read_stuff __ARGS((int advance)); 120 static void start_stuff __ARGS((void)); 121 static int read_redo __ARGS((int, int)); 122 static void copy_redo __ARGS((int)); 123 static void init_typebuf __ARGS((void)); 124 static void gotchars __ARGS((char_u *, int)); 125 static void may_sync_undo __ARGS((void)); 126 static void closescript __ARGS((void)); 127 static int vgetorpeek __ARGS((int)); 128 static void map_free __ARGS((mapblock_T **)); 129 static void validate_maphash __ARGS((void)); 130 static void showmap __ARGS((mapblock_T *mp, int local)); 131 132 /* 133 * Free and clear a buffer. 134 */ 135 void 136 free_buff(buf) 137 struct buffheader *buf; 138 { 139 struct buffblock *p, *np; 140 141 for (p = buf->bh_first.b_next; p != NULL; p = np) 142 { 143 np = p->b_next; 144 vim_free(p); 145 } 146 buf->bh_first.b_next = NULL; 147 } 148 149 /* 150 * Return the contents of a buffer as a single string. 151 * K_SPECIAL and CSI in the returned string are escaped. 152 */ 153 static char_u * 154 get_buffcont(buffer, dozero) 155 struct buffheader *buffer; 156 int dozero; /* count == zero is not an error */ 157 { 158 long_u count = 0; 159 char_u *p = NULL; 160 char_u *p2; 161 char_u *str; 162 struct buffblock *bp; 163 164 /* compute the total length of the string */ 165 for (bp = buffer->bh_first.b_next; bp != NULL; bp = bp->b_next) 166 count += (long_u)STRLEN(bp->b_str); 167 168 if ((count || dozero) && (p = lalloc(count + 1, TRUE)) != NULL) 169 { 170 p2 = p; 171 for (bp = buffer->bh_first.b_next; bp != NULL; bp = bp->b_next) 172 for (str = bp->b_str; *str; ) 173 *p2++ = *str++; 174 *p2 = NUL; 175 } 176 return (p); 177 } 178 179 /* 180 * Return the contents of the record buffer as a single string 181 * and clear the record buffer. 182 * K_SPECIAL and CSI in the returned string are escaped. 183 */ 184 char_u * 185 get_recorded() 186 { 187 char_u *p; 188 size_t len; 189 190 p = get_buffcont(&recordbuff, TRUE); 191 free_buff(&recordbuff); 192 193 /* 194 * Remove the characters that were added the last time, these must be the 195 * (possibly mapped) characters that stopped the recording. 196 */ 197 len = STRLEN(p); 198 if ((int)len >= last_recorded_len) 199 { 200 len -= last_recorded_len; 201 p[len] = NUL; 202 } 203 204 /* 205 * When stopping recording from Insert mode with CTRL-O q, also remove the 206 * CTRL-O. 207 */ 208 if (len > 0 && restart_edit != 0 && p[len - 1] == Ctrl_O) 209 p[len - 1] = NUL; 210 211 return (p); 212 } 213 214 /* 215 * Return the contents of the redo buffer as a single string. 216 * K_SPECIAL and CSI in the returned string are escaped. 217 */ 218 char_u * 219 get_inserted() 220 { 221 return(get_buffcont(&redobuff, FALSE)); 222 } 223 224 /* 225 * add string "s" after the current block of buffer "buf" 226 * K_SPECIAL and CSI should have been escaped already. 227 */ 228 static void 229 add_buff(buf, s, slen) 230 struct buffheader *buf; 231 char_u *s; 232 long slen; /* length of "s" or -1 */ 233 { 234 struct buffblock *p; 235 long_u len; 236 237 if (slen < 0) 238 slen = (long)STRLEN(s); 239 if (slen == 0) /* don't add empty strings */ 240 return; 241 242 if (buf->bh_first.b_next == NULL) /* first add to list */ 243 { 244 buf->bh_space = 0; 245 buf->bh_curr = &(buf->bh_first); 246 } 247 else if (buf->bh_curr == NULL) /* buffer has already been read */ 248 { 249 EMSG(_("E222: Add to read buffer")); 250 return; 251 } 252 else if (buf->bh_index != 0) 253 STRCPY(buf->bh_first.b_next->b_str, 254 buf->bh_first.b_next->b_str + buf->bh_index); 255 buf->bh_index = 0; 256 257 if (buf->bh_space >= (int)slen) 258 { 259 len = (long_u)STRLEN(buf->bh_curr->b_str); 260 STRNCPY(buf->bh_curr->b_str + len, s, slen); 261 buf->bh_curr->b_str[len + slen] = NUL; 262 buf->bh_space -= slen; 263 } 264 else 265 { 266 if (slen < MINIMAL_SIZE) 267 len = MINIMAL_SIZE; 268 else 269 len = slen; 270 p = (struct buffblock *)lalloc((long_u)(sizeof(struct buffblock) + len), 271 TRUE); 272 if (p == NULL) 273 return; /* no space, just forget it */ 274 buf->bh_space = len - slen; 275 STRNCPY(p->b_str, s, slen); 276 p->b_str[slen] = NUL; 277 278 p->b_next = buf->bh_curr->b_next; 279 buf->bh_curr->b_next = p; 280 buf->bh_curr = p; 281 } 282 return; 283 } 284 285 /* 286 * Add number "n" to buffer "buf". 287 */ 288 static void 289 add_num_buff(buf, n) 290 struct buffheader *buf; 291 long n; 292 { 293 char_u number[32]; 294 295 sprintf((char *)number, "%ld", n); 296 add_buff(buf, number, -1L); 297 } 298 299 /* 300 * Add character 'c' to buffer "buf". 301 * Translates special keys, NUL, CSI, K_SPECIAL and multibyte characters. 302 */ 303 static void 304 add_char_buff(buf, c) 305 struct buffheader *buf; 306 int c; 307 { 308 #ifdef FEAT_MBYTE 309 char_u bytes[MB_MAXBYTES + 1]; 310 int len; 311 int i; 312 #endif 313 char_u temp[4]; 314 315 #ifdef FEAT_MBYTE 316 if (IS_SPECIAL(c)) 317 len = 1; 318 else 319 len = (*mb_char2bytes)(c, bytes); 320 for (i = 0; i < len; ++i) 321 { 322 if (!IS_SPECIAL(c)) 323 c = bytes[i]; 324 #endif 325 326 if (IS_SPECIAL(c) || c == K_SPECIAL || c == NUL) 327 { 328 /* translate special key code into three byte sequence */ 329 temp[0] = K_SPECIAL; 330 temp[1] = K_SECOND(c); 331 temp[2] = K_THIRD(c); 332 temp[3] = NUL; 333 } 334 #ifdef FEAT_GUI 335 else if (c == CSI) 336 { 337 /* Translate a CSI to a CSI - KS_EXTRA - KE_CSI sequence */ 338 temp[0] = CSI; 339 temp[1] = KS_EXTRA; 340 temp[2] = (int)KE_CSI; 341 temp[3] = NUL; 342 } 343 #endif 344 else 345 { 346 temp[0] = c; 347 temp[1] = NUL; 348 } 349 add_buff(buf, temp, -1L); 350 #ifdef FEAT_MBYTE 351 } 352 #endif 353 } 354 355 /* 356 * Get one byte from the stuff buffer. 357 * If advance == TRUE go to the next char. 358 * No translation is done K_SPECIAL and CSI are escaped. 359 */ 360 static int 361 read_stuff(advance) 362 int advance; 363 { 364 char_u c; 365 struct buffblock *curr; 366 367 if (stuffbuff.bh_first.b_next == NULL) /* buffer is empty */ 368 return NUL; 369 370 curr = stuffbuff.bh_first.b_next; 371 c = curr->b_str[stuffbuff.bh_index]; 372 373 if (advance) 374 { 375 if (curr->b_str[++stuffbuff.bh_index] == NUL) 376 { 377 stuffbuff.bh_first.b_next = curr->b_next; 378 vim_free(curr); 379 stuffbuff.bh_index = 0; 380 } 381 } 382 return c; 383 } 384 385 /* 386 * Prepare the stuff buffer for reading (if it contains something). 387 */ 388 static void 389 start_stuff() 390 { 391 if (stuffbuff.bh_first.b_next != NULL) 392 { 393 stuffbuff.bh_curr = &(stuffbuff.bh_first); 394 stuffbuff.bh_space = 0; 395 } 396 } 397 398 /* 399 * Return TRUE if the stuff buffer is empty. 400 */ 401 int 402 stuff_empty() 403 { 404 return (stuffbuff.bh_first.b_next == NULL); 405 } 406 407 /* 408 * Set a typeahead character that won't be flushed. 409 */ 410 void 411 typeahead_noflush(c) 412 int c; 413 { 414 typeahead_char = c; 415 } 416 417 /* 418 * Remove the contents of the stuff buffer and the mapped characters in the 419 * typeahead buffer (used in case of an error). If 'typeahead' is true, 420 * flush all typeahead characters (used when interrupted by a CTRL-C). 421 */ 422 void 423 flush_buffers(typeahead) 424 int typeahead; 425 { 426 init_typebuf(); 427 428 start_stuff(); 429 while (read_stuff(TRUE) != NUL) 430 ; 431 432 if (typeahead) /* remove all typeahead */ 433 { 434 /* 435 * We have to get all characters, because we may delete the first part 436 * of an escape sequence. 437 * In an xterm we get one char at a time and we have to get them all. 438 */ 439 while (inchar(typebuf.tb_buf, typebuf.tb_buflen - 1, 10L, 440 typebuf.tb_change_cnt) != 0) 441 ; 442 typebuf.tb_off = MAXMAPLEN; 443 typebuf.tb_len = 0; 444 } 445 else /* remove mapped characters only */ 446 { 447 typebuf.tb_off += typebuf.tb_maplen; 448 typebuf.tb_len -= typebuf.tb_maplen; 449 } 450 typebuf.tb_maplen = 0; 451 typebuf.tb_silent = 0; 452 cmd_silent = FALSE; 453 typebuf.tb_no_abbr_cnt = 0; 454 } 455 456 /* 457 * The previous contents of the redo buffer is kept in old_redobuffer. 458 * This is used for the CTRL-O <.> command in insert mode. 459 */ 460 void 461 ResetRedobuff() 462 { 463 if (!block_redo) 464 { 465 free_buff(&old_redobuff); 466 old_redobuff = redobuff; 467 redobuff.bh_first.b_next = NULL; 468 } 469 } 470 471 #if defined(FEAT_AUTOCMD) || defined(FEAT_EVAL) || defined(PROTO) 472 /* 473 * Save redobuff and old_redobuff to save_redobuff and save_old_redobuff. 474 * Used before executing autocommands and user functions. 475 */ 476 static int save_level = 0; 477 478 void 479 saveRedobuff() 480 { 481 char_u *s; 482 483 if (save_level++ == 0) 484 { 485 save_redobuff = redobuff; 486 redobuff.bh_first.b_next = NULL; 487 save_old_redobuff = old_redobuff; 488 old_redobuff.bh_first.b_next = NULL; 489 490 /* Make a copy, so that ":normal ." in a function works. */ 491 s = get_buffcont(&save_redobuff, FALSE); 492 if (s != NULL) 493 { 494 add_buff(&redobuff, s, -1L); 495 vim_free(s); 496 } 497 } 498 } 499 500 /* 501 * Restore redobuff and old_redobuff from save_redobuff and save_old_redobuff. 502 * Used after executing autocommands and user functions. 503 */ 504 void 505 restoreRedobuff() 506 { 507 if (--save_level == 0) 508 { 509 free_buff(&redobuff); 510 redobuff = save_redobuff; 511 free_buff(&old_redobuff); 512 old_redobuff = save_old_redobuff; 513 } 514 } 515 #endif 516 517 /* 518 * Append "s" to the redo buffer. 519 * K_SPECIAL and CSI should already have been escaped. 520 */ 521 void 522 AppendToRedobuff(s) 523 char_u *s; 524 { 525 if (!block_redo) 526 add_buff(&redobuff, s, -1L); 527 } 528 529 /* 530 * Append to Redo buffer literally, escaping special characters with CTRL-V. 531 * K_SPECIAL and CSI are escaped as well. 532 */ 533 void 534 AppendToRedobuffLit(s) 535 char_u *s; 536 { 537 int c; 538 char_u *start; 539 540 if (block_redo) 541 return; 542 543 while (*s != NUL) 544 { 545 /* Put a string of normal characters in the redo buffer (that's 546 * faster). */ 547 start = s; 548 while (*s >= ' ' 549 #ifndef EBCDIC 550 && *s < DEL /* EBCDIC: all chars above space are normal */ 551 #endif 552 ) 553 ++s; 554 555 /* Don't put '0' or '^' as last character, just in case a CTRL-D is 556 * typed next. */ 557 if (*s == NUL && (s[-1] == '0' || s[-1] == '^')) 558 --s; 559 if (s > start) 560 add_buff(&redobuff, start, (long)(s - start)); 561 562 if (*s != NUL) 563 { 564 /* Handle a special or multibyte character. */ 565 #ifdef FEAT_MBYTE 566 if (has_mbyte) 567 { 568 c = (*mb_ptr2char)(s); 569 if (enc_utf8) 570 /* Handle composing chars as well. */ 571 s += utf_ptr2len_check(s); 572 else 573 s += (*mb_ptr2len_check)(s); 574 } 575 else 576 #endif 577 c = *s++; 578 if (c < ' ' || c == DEL || (*s == NUL && (c == '0' || c == '^'))) 579 add_char_buff(&redobuff, Ctrl_V); 580 581 /* CTRL-V '0' must be inserted as CTRL-V 048 (EBCDIC: xf0) */ 582 if (*s == NUL && c == '0') 583 #ifdef EBCDIC 584 add_buff(&redobuff, (char_u *)"xf0", 3L); 585 #else 586 add_buff(&redobuff, (char_u *)"048", 3L); 587 #endif 588 else 589 add_char_buff(&redobuff, c); 590 } 591 } 592 } 593 594 /* 595 * Append a character to the redo buffer. 596 * Translates special keys, NUL, CSI, K_SPECIAL and multibyte characters. 597 */ 598 void 599 AppendCharToRedobuff(c) 600 int c; 601 { 602 if (!block_redo) 603 add_char_buff(&redobuff, c); 604 } 605 606 /* 607 * Append a number to the redo buffer. 608 */ 609 void 610 AppendNumberToRedobuff(n) 611 long n; 612 { 613 if (!block_redo) 614 add_num_buff(&redobuff, n); 615 } 616 617 /* 618 * Append string "s" to the stuff buffer. 619 * CSI and K_SPECIAL must already have been escaped. 620 */ 621 void 622 stuffReadbuff(s) 623 char_u *s; 624 { 625 add_buff(&stuffbuff, s, -1L); 626 } 627 628 void 629 stuffReadbuffLen(s, len) 630 char_u *s; 631 long len; 632 { 633 add_buff(&stuffbuff, s, len); 634 } 635 636 #if defined(FEAT_EVAL) || defined(PROTO) 637 /* 638 * Stuff "s" into the stuff buffer, leaving special key codes unmodified and 639 * escaping other K_SPECIAL and CSI bytes. 640 */ 641 void 642 stuffReadbuffSpec(s) 643 char_u *s; 644 { 645 while (*s != NUL) 646 { 647 if (*s == K_SPECIAL && s[1] != NUL && s[2] != NUL) 648 { 649 /* Insert special key literally. */ 650 stuffReadbuffLen(s, 3L); 651 s += 3; 652 } 653 else 654 #ifdef FEAT_MBYTE 655 stuffcharReadbuff(mb_ptr2char_adv(&s)); 656 #else 657 stuffcharReadbuff(*s++); 658 #endif 659 } 660 } 661 #endif 662 663 /* 664 * Append a character to the stuff buffer. 665 * Translates special keys, NUL, CSI, K_SPECIAL and multibyte characters. 666 */ 667 void 668 stuffcharReadbuff(c) 669 int c; 670 { 671 add_char_buff(&stuffbuff, c); 672 } 673 674 /* 675 * Append a number to the stuff buffer. 676 */ 677 void 678 stuffnumReadbuff(n) 679 long n; 680 { 681 add_num_buff(&stuffbuff, n); 682 } 683 684 /* 685 * Read a character from the redo buffer. Translates K_SPECIAL, CSI and 686 * multibyte characters. 687 * The redo buffer is left as it is. 688 * if init is TRUE, prepare for redo, return FAIL if nothing to redo, OK 689 * otherwise 690 * if old is TRUE, use old_redobuff instead of redobuff 691 */ 692 static int 693 read_redo(init, old_redo) 694 int init; 695 int old_redo; 696 { 697 static struct buffblock *bp; 698 static char_u *p; 699 int c; 700 #ifdef FEAT_MBYTE 701 int n; 702 char_u buf[MB_MAXBYTES]; 703 int i; 704 #endif 705 706 if (init) 707 { 708 if (old_redo) 709 bp = old_redobuff.bh_first.b_next; 710 else 711 bp = redobuff.bh_first.b_next; 712 if (bp == NULL) 713 return FAIL; 714 p = bp->b_str; 715 return OK; 716 } 717 if ((c = *p) != NUL) 718 { 719 /* Reverse the conversion done by add_char_buff() */ 720 #ifdef FEAT_MBYTE 721 /* For a multi-byte character get all the bytes and return the 722 * converted character. */ 723 if (has_mbyte && (c != K_SPECIAL || p[1] == KS_SPECIAL)) 724 n = MB_BYTE2LEN_CHECK(c); 725 else 726 n = 1; 727 for (i = 0; ; ++i) 728 #endif 729 { 730 if (c == K_SPECIAL) /* special key or escaped K_SPECIAL */ 731 { 732 c = TO_SPECIAL(p[1], p[2]); 733 p += 2; 734 } 735 #ifdef FEAT_GUI 736 if (c == CSI) /* escaped CSI */ 737 p += 2; 738 #endif 739 if (*++p == NUL && bp->b_next != NULL) 740 { 741 bp = bp->b_next; 742 p = bp->b_str; 743 } 744 #ifdef FEAT_MBYTE 745 buf[i] = c; 746 if (i == n - 1) /* last byte of a character */ 747 { 748 if (n != 1) 749 c = (*mb_ptr2char)(buf); 750 break; 751 } 752 c = *p; 753 if (c == NUL) /* cannot happen? */ 754 break; 755 #endif 756 } 757 } 758 759 return c; 760 } 761 762 /* 763 * Copy the rest of the redo buffer into the stuff buffer (in a slow way). 764 * If old_redo is TRUE, use old_redobuff instead of redobuff. 765 * The escaped K_SPECIAL and CSI are copied without translation. 766 */ 767 static void 768 copy_redo(old_redo) 769 int old_redo; 770 { 771 int c; 772 773 while ((c = read_redo(FALSE, old_redo)) != NUL) 774 stuffcharReadbuff(c); 775 } 776 777 /* 778 * Stuff the redo buffer into the stuffbuff. 779 * Insert the redo count into the command. 780 * If "old_redo" is TRUE, the last but one command is repeated 781 * instead of the last command (inserting text). This is used for 782 * CTRL-O <.> in insert mode 783 * 784 * return FAIL for failure, OK otherwise 785 */ 786 int 787 start_redo(count, old_redo) 788 long count; 789 int old_redo; 790 { 791 int c; 792 793 /* init the pointers; return if nothing to redo */ 794 if (read_redo(TRUE, old_redo) == FAIL) 795 return FAIL; 796 797 c = read_redo(FALSE, old_redo); 798 799 /* copy the buffer name, if present */ 800 if (c == '"') 801 { 802 add_buff(&stuffbuff, (char_u *)"\"", 1L); 803 c = read_redo(FALSE, old_redo); 804 805 /* if a numbered buffer is used, increment the number */ 806 if (c >= '1' && c < '9') 807 ++c; 808 add_char_buff(&stuffbuff, c); 809 c = read_redo(FALSE, old_redo); 810 } 811 812 #ifdef FEAT_VISUAL 813 if (c == 'v') /* redo Visual */ 814 { 815 VIsual = curwin->w_cursor; 816 VIsual_active = TRUE; 817 VIsual_select = FALSE; 818 VIsual_reselect = TRUE; 819 redo_VIsual_busy = TRUE; 820 c = read_redo(FALSE, old_redo); 821 } 822 #endif 823 824 /* try to enter the count (in place of a previous count) */ 825 if (count) 826 { 827 while (VIM_ISDIGIT(c)) /* skip "old" count */ 828 c = read_redo(FALSE, old_redo); 829 add_num_buff(&stuffbuff, count); 830 } 831 832 /* copy from the redo buffer into the stuff buffer */ 833 add_char_buff(&stuffbuff, c); 834 copy_redo(old_redo); 835 return OK; 836 } 837 838 /* 839 * Repeat the last insert (R, o, O, a, A, i or I command) by stuffing 840 * the redo buffer into the stuffbuff. 841 * return FAIL for failure, OK otherwise 842 */ 843 int 844 start_redo_ins() 845 { 846 int c; 847 848 if (read_redo(TRUE, FALSE) == FAIL) 849 return FAIL; 850 start_stuff(); 851 852 /* skip the count and the command character */ 853 while ((c = read_redo(FALSE, FALSE)) != NUL) 854 { 855 if (vim_strchr((char_u *)"AaIiRrOo", c) != NULL) 856 { 857 if (c == 'O' || c == 'o') 858 stuffReadbuff(NL_STR); 859 break; 860 } 861 } 862 863 /* copy the typed text from the redo buffer into the stuff buffer */ 864 copy_redo(FALSE); 865 block_redo = TRUE; 866 return OK; 867 } 868 869 void 870 stop_redo_ins() 871 { 872 block_redo = FALSE; 873 } 874 875 /* 876 * Initialize typebuf.tb_buf to point to typebuf_init. 877 * alloc() cannot be used here: In out-of-memory situations it would 878 * be impossible to type anything. 879 */ 880 static void 881 init_typebuf() 882 { 883 if (typebuf.tb_buf == NULL) 884 { 885 typebuf.tb_buf = typebuf_init; 886 typebuf.tb_noremap = noremapbuf_init; 887 typebuf.tb_buflen = TYPELEN_INIT; 888 typebuf.tb_len = 0; 889 typebuf.tb_off = 0; 890 typebuf.tb_change_cnt = 1; 891 } 892 } 893 894 /* 895 * insert a string in position 'offset' in the typeahead buffer (for "@r" 896 * and ":normal" command, vgetorpeek() and check_termcode()) 897 * 898 * If noremap is REMAP_YES, new string can be mapped again. 899 * If noremap is REMAP_NONE, new string cannot be mapped again. 900 * If noremap is REMAP_SKIP, fist char of new string cannot be mapped again, 901 * but abbreviations are allowed. 902 * If noremap is REMAP_SCRIPT, new string cannot be mapped again, except for 903 * script-local mappings. 904 * If noremap is > 0, that many characters of the new string cannot be mapped. 905 * 906 * If nottyped is TRUE, the string does not return KeyTyped (don't use when 907 * offset is non-zero!). 908 * 909 * If silent is TRUE, cmd_silent is set when the characters are obtained. 910 * 911 * return FAIL for failure, OK otherwise 912 */ 913 int 914 ins_typebuf(str, noremap, offset, nottyped, silent) 915 char_u *str; 916 int noremap; 917 int offset; 918 int nottyped; 919 int silent; 920 { 921 char_u *s1, *s2; 922 int newlen; 923 int addlen; 924 int i; 925 int newoff; 926 int val; 927 int nrm; 928 929 init_typebuf(); 930 if (++typebuf.tb_change_cnt == 0) 931 typebuf.tb_change_cnt = 1; 932 933 addlen = (int)STRLEN(str); 934 /* 935 * Easy case: there is room in front of typebuf.tb_buf[typebuf.tb_off] 936 */ 937 if (offset == 0 && addlen <= typebuf.tb_off) 938 { 939 typebuf.tb_off -= addlen; 940 mch_memmove(typebuf.tb_buf + typebuf.tb_off, str, (size_t)addlen); 941 } 942 /* 943 * Need to allocate new buffer. 944 * In typebuf.tb_buf there must always be room for 3 * MAXMAPLEN + 4 945 * characters. We add some extra room to avoid having to allocate too 946 * often. 947 */ 948 else 949 { 950 newoff = MAXMAPLEN + 4; 951 newlen = typebuf.tb_len + addlen + newoff + 4 * (MAXMAPLEN + 4); 952 if (newlen < 0) /* string is getting too long */ 953 { 954 EMSG(_(e_toocompl)); /* also calls flush_buffers */ 955 setcursor(); 956 return FAIL; 957 } 958 s1 = alloc(newlen); 959 if (s1 == NULL) /* out of memory */ 960 return FAIL; 961 s2 = alloc(newlen); 962 if (s2 == NULL) /* out of memory */ 963 { 964 vim_free(s1); 965 return FAIL; 966 } 967 typebuf.tb_buflen = newlen; 968 969 /* copy the old chars, before the insertion point */ 970 mch_memmove(s1 + newoff, typebuf.tb_buf + typebuf.tb_off, 971 (size_t)offset); 972 /* copy the new chars */ 973 mch_memmove(s1 + newoff + offset, str, (size_t)addlen); 974 /* copy the old chars, after the insertion point, including the NUL at 975 * the end */ 976 mch_memmove(s1 + newoff + offset + addlen, 977 typebuf.tb_buf + typebuf.tb_off + offset, 978 (size_t)(typebuf.tb_len - offset + 1)); 979 if (typebuf.tb_buf != typebuf_init) 980 vim_free(typebuf.tb_buf); 981 typebuf.tb_buf = s1; 982 983 mch_memmove(s2 + newoff, typebuf.tb_noremap + typebuf.tb_off, 984 (size_t)offset); 985 mch_memmove(s2 + newoff + offset + addlen, 986 typebuf.tb_noremap + typebuf.tb_off + offset, 987 (size_t)(typebuf.tb_len - offset)); 988 if (typebuf.tb_noremap != noremapbuf_init) 989 vim_free(typebuf.tb_noremap); 990 typebuf.tb_noremap = s2; 991 992 typebuf.tb_off = newoff; 993 } 994 typebuf.tb_len += addlen; 995 996 /* If noremap == REMAP_SCRIPT: do remap script-local mappings. */ 997 if (noremap == REMAP_SCRIPT) 998 val = RM_SCRIPT; 999 else if (noremap == REMAP_SKIP) 1000 val = RM_ABBR; 1001 else 1002 val = RM_NONE; 1003 1004 /* 1005 * Adjust typebuf.tb_noremap[] for the new characters: 1006 * If noremap == REMAP_NONE or REMAP_SCRIPT: new characters are 1007 * (sometimes) not remappable 1008 * If noremap == REMAP_YES: all the new characters are mappable 1009 * If noremap > 0: "noremap" characters are not remappable, the rest 1010 * mappable 1011 */ 1012 if (noremap == REMAP_SKIP) 1013 nrm = 1; 1014 else if (noremap < 0) 1015 nrm = addlen; 1016 else 1017 nrm = noremap; 1018 for (i = 0; i < addlen; ++i) 1019 typebuf.tb_noremap[typebuf.tb_off + i + offset] = 1020 (--nrm >= 0) ? val : RM_YES; 1021 1022 /* tb_maplen and tb_silent only remember the length of mapped and/or 1023 * silent mappings at the start of the buffer, assuming that a mapped 1024 * sequence doesn't result in typed characters. */ 1025 if (nottyped || typebuf.tb_maplen > offset) 1026 typebuf.tb_maplen += addlen; 1027 if (silent || typebuf.tb_silent > offset) 1028 { 1029 typebuf.tb_silent += addlen; 1030 cmd_silent = TRUE; 1031 } 1032 if (typebuf.tb_no_abbr_cnt && offset == 0) /* and not used for abbrev.s */ 1033 typebuf.tb_no_abbr_cnt += addlen; 1034 1035 return OK; 1036 } 1037 1038 /* 1039 * Return TRUE if the typeahead buffer was changed (while waiting for a 1040 * character to arrive). Happens when a message was received from a client. 1041 * But check in a more generic way to avoid trouble: When "typebuf.tb_buf" 1042 * changed it was reallocated and the old pointer can no longer be used. 1043 * Or "typebuf.tb_off" may have been changed and we would overwrite characters 1044 * that was just added. 1045 */ 1046 int 1047 typebuf_changed(tb_change_cnt) 1048 int tb_change_cnt; /* old value of typebuf.tb_change_cnt */ 1049 { 1050 return (tb_change_cnt != 0 && (typebuf.tb_change_cnt != tb_change_cnt 1051 #ifdef FEAT_CLIENTSERVER 1052 || received_from_client 1053 #endif 1054 )); 1055 } 1056 1057 /* 1058 * Return TRUE if there are no characters in the typeahead buffer that have 1059 * not been typed (result from a mapping or come from ":normal"). 1060 */ 1061 int 1062 typebuf_typed() 1063 { 1064 return typebuf.tb_maplen == 0; 1065 } 1066 1067 /* 1068 * Return the number of characters that are mapped (or not typed). 1069 */ 1070 int 1071 typebuf_maplen() 1072 { 1073 return typebuf.tb_maplen; 1074 } 1075 1076 /* 1077 * remove "len" characters from typebuf.tb_buf[typebuf.tb_off + offset] 1078 */ 1079 void 1080 del_typebuf(len, offset) 1081 int len; 1082 int offset; 1083 { 1084 int i; 1085 1086 if (len == 0) 1087 return; /* nothing to do */ 1088 1089 typebuf.tb_len -= len; 1090 1091 /* 1092 * Easy case: Just increase typebuf.tb_off. 1093 */ 1094 if (offset == 0 && typebuf.tb_buflen - (typebuf.tb_off + len) 1095 >= 3 * MAXMAPLEN + 3) 1096 typebuf.tb_off += len; 1097 /* 1098 * Have to move the characters in typebuf.tb_buf[] and typebuf.tb_noremap[] 1099 */ 1100 else 1101 { 1102 i = typebuf.tb_off + offset; 1103 /* 1104 * Leave some extra room at the end to avoid reallocation. 1105 */ 1106 if (typebuf.tb_off > MAXMAPLEN) 1107 { 1108 mch_memmove(typebuf.tb_buf + MAXMAPLEN, 1109 typebuf.tb_buf + typebuf.tb_off, (size_t)offset); 1110 mch_memmove(typebuf.tb_noremap + MAXMAPLEN, 1111 typebuf.tb_noremap + typebuf.tb_off, (size_t)offset); 1112 typebuf.tb_off = MAXMAPLEN; 1113 } 1114 /* adjust typebuf.tb_buf (include the NUL at the end) */ 1115 mch_memmove(typebuf.tb_buf + typebuf.tb_off + offset, 1116 typebuf.tb_buf + i + len, 1117 (size_t)(typebuf.tb_len - offset + 1)); 1118 /* adjust typebuf.tb_noremap[] */ 1119 mch_memmove(typebuf.tb_noremap + typebuf.tb_off + offset, 1120 typebuf.tb_noremap + i + len, 1121 (size_t)(typebuf.tb_len - offset)); 1122 } 1123 1124 if (typebuf.tb_maplen > offset) /* adjust tb_maplen */ 1125 { 1126 if (typebuf.tb_maplen < offset + len) 1127 typebuf.tb_maplen = offset; 1128 else 1129 typebuf.tb_maplen -= len; 1130 } 1131 if (typebuf.tb_silent > offset) /* adjust tb_silent */ 1132 { 1133 if (typebuf.tb_silent < offset + len) 1134 typebuf.tb_silent = offset; 1135 else 1136 typebuf.tb_silent -= len; 1137 } 1138 if (typebuf.tb_no_abbr_cnt > offset) /* adjust tb_no_abbr_cnt */ 1139 { 1140 if (typebuf.tb_no_abbr_cnt < offset + len) 1141 typebuf.tb_no_abbr_cnt = offset; 1142 else 1143 typebuf.tb_no_abbr_cnt -= len; 1144 } 1145 1146 #ifdef FEAT_CLIENTSERVER 1147 /* Reset the flag that text received from a client was inserted in the 1148 * typeahead buffer. */ 1149 received_from_client = FALSE; 1150 #endif 1151 if (++typebuf.tb_change_cnt == 0) 1152 typebuf.tb_change_cnt = 1; 1153 } 1154 1155 /* 1156 * Write typed characters to script file. 1157 * If recording is on put the character in the recordbuffer. 1158 */ 1159 static void 1160 gotchars(s, len) 1161 char_u *s; 1162 int len; 1163 { 1164 int c; 1165 char_u buf[2]; 1166 1167 /* remember how many chars were last recorded */ 1168 if (Recording) 1169 last_recorded_len += len; 1170 1171 buf[1] = NUL; 1172 while (len--) 1173 { 1174 /* Handle one byte at a time; no translation to be done. */ 1175 c = *s++; 1176 updatescript(c); 1177 1178 if (Recording) 1179 { 1180 buf[0] = c; 1181 add_buff(&recordbuff, buf, 1L); 1182 } 1183 } 1184 may_sync_undo(); 1185 1186 #ifdef FEAT_EVAL 1187 /* output "debug mode" message next time in debug mode */ 1188 debug_did_msg = FALSE; 1189 #endif 1190 1191 /* Since characters have been typed, consider the following to be in 1192 * another mapping. Search string will be kept in history. */ 1193 ++maptick; 1194 } 1195 1196 /* 1197 * Sync undo. Called when typed characters are obtained from the typeahead 1198 * buffer, or when a menu is used. 1199 * Do not sync: 1200 * - In Insert mode, unless cursor key has been used. 1201 * - While reading a script file. 1202 * - When no_u_sync is non-zero. 1203 */ 1204 static void 1205 may_sync_undo() 1206 { 1207 if ((!(State & (INSERT + CMDLINE)) || arrow_used) 1208 && scriptin[curscript] == NULL && no_u_sync == 0) 1209 u_sync(); 1210 } 1211 1212 /* 1213 * Make "typebuf" empty and allocate new buffers. 1214 * Returns FAIL when out of memory. 1215 */ 1216 int 1217 alloc_typebuf() 1218 { 1219 typebuf.tb_buf = alloc(TYPELEN_INIT); 1220 typebuf.tb_noremap = alloc(TYPELEN_INIT); 1221 if (typebuf.tb_buf == NULL || typebuf.tb_noremap == NULL) 1222 { 1223 free_typebuf(); 1224 return FAIL; 1225 } 1226 typebuf.tb_buflen = TYPELEN_INIT; 1227 typebuf.tb_off = 0; 1228 typebuf.tb_len = 0; 1229 typebuf.tb_maplen = 0; 1230 typebuf.tb_silent = 0; 1231 typebuf.tb_no_abbr_cnt = 0; 1232 if (++typebuf.tb_change_cnt == 0) 1233 typebuf.tb_change_cnt = 1; 1234 return OK; 1235 } 1236 1237 /* 1238 * Free the buffers of "typebuf". 1239 */ 1240 void 1241 free_typebuf() 1242 { 1243 vim_free(typebuf.tb_buf); 1244 vim_free(typebuf.tb_noremap); 1245 } 1246 1247 /* 1248 * When doing ":so! file", the current typeahead needs to be saved, and 1249 * restored when "file" has been read completely. 1250 */ 1251 static typebuf_T saved_typebuf[NSCRIPT]; 1252 1253 int 1254 save_typebuf() 1255 { 1256 init_typebuf(); 1257 saved_typebuf[curscript] = typebuf; 1258 /* If out of memory: restore typebuf and close file. */ 1259 if (alloc_typebuf() == FAIL) 1260 { 1261 closescript(); 1262 return FAIL; 1263 } 1264 return OK; 1265 } 1266 1267 #if defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) || defined(PROTO) 1268 1269 /* 1270 * Save all three kinds of typeahead, so that the user must type at a prompt. 1271 */ 1272 void 1273 save_typeahead(tp) 1274 tasave_T *tp; 1275 { 1276 tp->save_typebuf = typebuf; 1277 tp->typebuf_valid = (alloc_typebuf() == OK); 1278 if (!tp->typebuf_valid) 1279 typebuf = tp->save_typebuf; 1280 1281 tp->save_stuffbuff = stuffbuff; 1282 stuffbuff.bh_first.b_next = NULL; 1283 # ifdef USE_INPUT_BUF 1284 tp->save_inputbuf = get_input_buf(); 1285 # endif 1286 } 1287 1288 /* 1289 * Restore the typeahead to what it was before calling save_typeahead(). 1290 * The allocated memory is freed, can only be called once! 1291 */ 1292 void 1293 restore_typeahead(tp) 1294 tasave_T *tp; 1295 { 1296 if (tp->typebuf_valid) 1297 { 1298 free_typebuf(); 1299 typebuf = tp->save_typebuf; 1300 } 1301 1302 free_buff(&stuffbuff); 1303 stuffbuff = tp->save_stuffbuff; 1304 # ifdef USE_INPUT_BUF 1305 set_input_buf(tp->save_inputbuf); 1306 # endif 1307 } 1308 #endif 1309 1310 /* 1311 * Open a new script file for the ":source!" command. 1312 */ 1313 void 1314 openscript(name, directly) 1315 char_u *name; 1316 int directly; /* when TRUE execute directly */ 1317 { 1318 if (curscript + 1 == NSCRIPT) 1319 { 1320 EMSG(_(e_nesting)); 1321 return; 1322 } 1323 1324 if (scriptin[curscript] != NULL) /* already reading script */ 1325 ++curscript; 1326 /* use NameBuff for expanded name */ 1327 expand_env(name, NameBuff, MAXPATHL); 1328 if ((scriptin[curscript] = mch_fopen((char *)NameBuff, READBIN)) == NULL) 1329 { 1330 EMSG2(_(e_notopen), name); 1331 if (curscript) 1332 --curscript; 1333 return; 1334 } 1335 if (save_typebuf() == FAIL) 1336 return; 1337 1338 /* 1339 * Execute the commands from the file right now when using ":source!" 1340 * after ":global" or ":argdo" or in a loop. Also when another command 1341 * follows. This means the display won't be updated. Don't do this 1342 * always, "make test" would fail. 1343 */ 1344 if (directly) 1345 { 1346 oparg_T oa; 1347 int oldcurscript; 1348 int save_State = State; 1349 int save_restart_edit = restart_edit; 1350 int save_insertmode = p_im; 1351 int save_finish_op = finish_op; 1352 int save_msg_scroll = msg_scroll; 1353 1354 State = NORMAL; 1355 msg_scroll = FALSE; /* no msg scrolling in Normal mode */ 1356 restart_edit = 0; /* don't go to Insert mode */ 1357 p_im = FALSE; /* don't use 'insertmode' */ 1358 clear_oparg(&oa); 1359 finish_op = FALSE; 1360 1361 oldcurscript = curscript; 1362 do 1363 { 1364 update_topline_cursor(); /* update cursor position and topline */ 1365 normal_cmd(&oa, FALSE); /* execute one command */ 1366 vpeekc(); /* check for end of file */ 1367 } 1368 while (scriptin[oldcurscript] != NULL); 1369 1370 State = save_State; 1371 msg_scroll = save_msg_scroll; 1372 restart_edit = save_restart_edit; 1373 p_im = save_insertmode; 1374 finish_op = save_finish_op; 1375 } 1376 } 1377 1378 /* 1379 * Close the currently active input script. 1380 */ 1381 static void 1382 closescript() 1383 { 1384 free_typebuf(); 1385 typebuf = saved_typebuf[curscript]; 1386 1387 fclose(scriptin[curscript]); 1388 scriptin[curscript] = NULL; 1389 if (curscript > 0) 1390 --curscript; 1391 } 1392 1393 #if defined(FEAT_INS_EXPAND) || defined(PROTO) 1394 /* 1395 * Return TRUE when reading keys from a script file. 1396 */ 1397 int 1398 using_script() 1399 { 1400 return scriptin[curscript] != NULL; 1401 } 1402 #endif 1403 1404 /* 1405 * updatescipt() is called when a character can be written into the script file 1406 * or when we have waited some time for a character (c == 0) 1407 * 1408 * All the changed memfiles are synced if c == 0 or when the number of typed 1409 * characters reaches 'updatecount' and 'updatecount' is non-zero. 1410 */ 1411 void 1412 updatescript(c) 1413 int c; 1414 { 1415 static int count = 0; 1416 1417 if (c && scriptout) 1418 putc(c, scriptout); 1419 if (c == 0 || (p_uc > 0 && ++count >= p_uc)) 1420 { 1421 ml_sync_all(c == 0, TRUE); 1422 count = 0; 1423 } 1424 } 1425 1426 #define KL_PART_KEY -1 /* keylen value for incomplete key-code */ 1427 #define KL_PART_MAP -2 /* keylen value for incomplete mapping */ 1428 1429 static int old_char = -1; /* character put back by vungetc() */ 1430 static int old_mod_mask; /* mod_mask for ungotten character */ 1431 1432 /* 1433 * Get the next input character. 1434 * Can return a special key or a multi-byte character. 1435 * Can return NUL when called recursively, use safe_vgetc() if that's not 1436 * wanted. 1437 * This translates escaped K_SPECIAL and CSI bytes to a K_SPECIAL or CSI byte. 1438 * Collects the bytes of a multibyte character into the whole character. 1439 * Returns the modifers in the global "mod_mask". 1440 */ 1441 int 1442 vgetc() 1443 { 1444 int c, c2; 1445 #ifdef FEAT_MBYTE 1446 int n; 1447 char_u buf[MB_MAXBYTES]; 1448 int i; 1449 #endif 1450 1451 /* 1452 * If a character was put back with vungetc, it was already processed. 1453 * Return it directly. 1454 */ 1455 if (old_char != -1) 1456 { 1457 c = old_char; 1458 old_char = -1; 1459 mod_mask = old_mod_mask; 1460 return c; 1461 } 1462 1463 mod_mask = 0x0; 1464 last_recorded_len = 0; 1465 for (;;) /* this is done twice if there are modifiers */ 1466 { 1467 if (mod_mask) /* no mapping after modifier has been read */ 1468 { 1469 ++no_mapping; 1470 ++allow_keys; 1471 } 1472 c = vgetorpeek(TRUE); 1473 if (mod_mask) 1474 { 1475 --no_mapping; 1476 --allow_keys; 1477 } 1478 1479 /* Get two extra bytes for special keys */ 1480 if (c == K_SPECIAL 1481 #ifdef FEAT_GUI 1482 || c == CSI 1483 #endif 1484 ) 1485 { 1486 ++no_mapping; 1487 c2 = vgetorpeek(TRUE); /* no mapping for these chars */ 1488 c = vgetorpeek(TRUE); 1489 --no_mapping; 1490 if (c2 == KS_MODIFIER) 1491 { 1492 mod_mask = c; 1493 continue; 1494 } 1495 c = TO_SPECIAL(c2, c); 1496 1497 #if defined(FEAT_GUI_W32) && defined(FEAT_MENU) && defined(FEAT_TEAROFF) 1498 /* Handle K_TEAROFF here, the caller of vgetc() doesn't need to 1499 * know that a menu was torn off */ 1500 if (c == K_TEAROFF) 1501 { 1502 char_u name[200]; 1503 int i; 1504 1505 /* get menu path, it ends with a <CR> */ 1506 for (i = 0; (c = vgetorpeek(TRUE)) != '\r'; ) 1507 { 1508 name[i] = c; 1509 if (i < 199) 1510 ++i; 1511 } 1512 name[i] = NUL; 1513 gui_make_tearoff(name); 1514 continue; 1515 } 1516 #endif 1517 #ifdef FEAT_GUI 1518 /* Translate K_CSI to CSI. The special key is only used to avoid 1519 * it being recognized as the start of a special key. */ 1520 if (c == K_CSI) 1521 c = CSI; 1522 #endif 1523 } 1524 #ifdef MSDOS 1525 /* 1526 * If K_NUL was typed, it is replaced by K_NUL, 3 in mch_inchar(). 1527 * Delete the 3 here. 1528 */ 1529 else if (c == K_NUL && vpeekc() == 3) 1530 (void)vgetorpeek(TRUE); 1531 #endif 1532 1533 if (c >= FIRST_KEYPAD && c <= LAST_KEYPAD) 1534 { 1535 /* a keypad key was not mapped, use it like its ASCII equivalent */ 1536 switch (c) 1537 { 1538 case K_KPLUS: c = '+'; break; 1539 case K_KMINUS: c = '-'; break; 1540 case K_KDIVIDE: c = '/'; break; 1541 case K_KMULTIPLY: c = '*'; break; 1542 case K_KENTER: c = CAR; break; 1543 case K_KPOINT: c = '.'; break; 1544 case K_K0: c = '0'; break; 1545 case K_K1: c = '1'; break; 1546 case K_K2: c = '2'; break; 1547 case K_K3: c = '3'; break; 1548 case K_K4: c = '4'; break; 1549 case K_K5: c = '5'; break; 1550 case K_K6: c = '6'; break; 1551 case K_K7: c = '7'; break; 1552 case K_K8: c = '8'; break; 1553 case K_K9: c = '9'; break; 1554 } 1555 } 1556 1557 #ifdef FEAT_MBYTE 1558 /* For a multi-byte character get all the bytes and return the 1559 * converted character. 1560 * Note: This will loop until enough bytes are received! 1561 */ 1562 if (has_mbyte && (n = MB_BYTE2LEN_CHECK(c)) > 1) 1563 { 1564 ++no_mapping; 1565 buf[0] = c; 1566 for (i = 1; i < n; ++i) 1567 { 1568 buf[i] = vgetorpeek(TRUE); 1569 if (buf[i] == K_SPECIAL 1570 #ifdef FEAT_GUI 1571 || buf[i] == CSI 1572 #endif 1573 ) 1574 { 1575 /* Must be a K_SPECIAL - KS_SPECIAL - KE_FILLER sequence, 1576 * which represents a K_SPECIAL (0x80), 1577 * or a CSI - KS_EXTRA - KE_CSI sequence, which represents 1578 * a CSI (0x9B), 1579 * of a K_SPECIAL - KS_EXTRA - KE_CSI, which is CSI too. */ 1580 c = vgetorpeek(TRUE); 1581 if (vgetorpeek(TRUE) == (int)KE_CSI && c == KS_EXTRA) 1582 buf[i] = CSI; 1583 } 1584 } 1585 --no_mapping; 1586 c = (*mb_ptr2char)(buf); 1587 } 1588 #endif 1589 1590 return c; 1591 } 1592 } 1593 1594 /* 1595 * Like vgetc(), but never return a NUL when called recursively, get a key 1596 * directly from the user (ignoring typeahead). 1597 */ 1598 int 1599 safe_vgetc() 1600 { 1601 int c; 1602 1603 c = vgetc(); 1604 if (c == NUL) 1605 c = get_keystroke(); 1606 return c; 1607 } 1608 1609 /* 1610 * Check if a character is available, such that vgetc() will not block. 1611 * If the next character is a special character or multi-byte, the returned 1612 * character is not valid!. 1613 */ 1614 int 1615 vpeekc() 1616 { 1617 if (old_char != -1) 1618 return old_char; 1619 return vgetorpeek(FALSE); 1620 } 1621 1622 #if defined(FEAT_TERMRESPONSE) || defined(PROTO) 1623 /* 1624 * Like vpeekc(), but don't allow mapping. Do allow checking for terminal 1625 * codes. 1626 */ 1627 int 1628 vpeekc_nomap() 1629 { 1630 int c; 1631 1632 ++no_mapping; 1633 ++allow_keys; 1634 c = vpeekc(); 1635 --no_mapping; 1636 --allow_keys; 1637 return c; 1638 } 1639 #endif 1640 1641 #if defined(FEAT_INS_EXPAND) || defined(PROTO) 1642 /* 1643 * Check if any character is available, also half an escape sequence. 1644 * Trick: when no typeahead found, but there is something in the typeahead 1645 * buffer, it must be an ESC that is recognized as the start of a key code. 1646 */ 1647 int 1648 vpeekc_any() 1649 { 1650 int c; 1651 1652 c = vpeekc(); 1653 if (c == NUL && typebuf.tb_len > 0) 1654 c = ESC; 1655 return c; 1656 } 1657 #endif 1658 1659 /* 1660 * Call vpeekc() without causing anything to be mapped. 1661 * Return TRUE if a character is available, FALSE otherwise. 1662 */ 1663 int 1664 char_avail() 1665 { 1666 int retval; 1667 1668 ++no_mapping; 1669 retval = vpeekc(); 1670 --no_mapping; 1671 return (retval != NUL); 1672 } 1673 1674 void 1675 vungetc(c) /* unget one character (can only be done once!) */ 1676 int c; 1677 { 1678 old_char = c; 1679 old_mod_mask = mod_mask; 1680 } 1681 1682 /* 1683 * get a character: 1684 * 1. from the stuffbuffer 1685 * This is used for abbreviated commands like "D" -> "d$". 1686 * Also used to redo a command for ".". 1687 * 2. from the typeahead buffer 1688 * Stores text obtained previously but not used yet. 1689 * Also stores the result of mappings. 1690 * Also used for the ":normal" command. 1691 * 3. from the user 1692 * This may do a blocking wait if "advance" is TRUE. 1693 * 1694 * if "advance" is TRUE (vgetc()): 1695 * really get the character. 1696 * KeyTyped is set to TRUE in the case the user typed the key. 1697 * KeyStuffed is TRUE if the character comes from the stuff buffer. 1698 * if "advance" is FALSE (vpeekc()): 1699 * just look whether there is a character available. 1700 * 1701 * When "no_mapping" is zero, checks for mappings in the current mode. 1702 * Only returns one byte (of a multi-byte character). 1703 * K_SPECIAL and CSI may be escaped, need to get two more bytes then. 1704 */ 1705 static int 1706 vgetorpeek(advance) 1707 int advance; 1708 { 1709 int c, c1; 1710 int keylen; 1711 char_u *s; 1712 mapblock_T *mp; 1713 #ifdef FEAT_LOCALMAP 1714 mapblock_T *mp2; 1715 #endif 1716 mapblock_T *mp_match; 1717 int mp_match_len = 0; 1718 int timedout = FALSE; /* waited for more than 1 second 1719 for mapping to complete */ 1720 int mapdepth = 0; /* check for recursive mapping */ 1721 int mode_deleted = FALSE; /* set when mode has been deleted */ 1722 int local_State; 1723 int mlen; 1724 int max_mlen; 1725 #ifdef FEAT_CMDL_INFO 1726 int i; 1727 int new_wcol, new_wrow; 1728 #endif 1729 #ifdef FEAT_GUI 1730 # ifdef FEAT_MENU 1731 int idx; 1732 # endif 1733 int shape_changed = FALSE; /* adjusted cursor shape */ 1734 #endif 1735 int n; 1736 #ifdef FEAT_LANGMAP 1737 int nolmaplen; 1738 #endif 1739 int old_wcol, old_wrow; 1740 1741 /* 1742 * This function doesn't work very well when called recursively. This may 1743 * happen though, because of: 1744 * 1. The call to add_to_showcmd(). char_avail() is then used to check if 1745 * there is a character available, which calls this function. In that 1746 * case we must return NUL, to indicate no character is available. 1747 * 2. A GUI callback function writes to the screen, causing a 1748 * wait_return(). 1749 * Using ":normal" can also do this, but it saves the typeahead buffer, 1750 * thus it should be OK. But don't get a key from the user then. 1751 */ 1752 if (vgetc_busy 1753 #ifdef FEAT_EX_EXTRA 1754 && ex_normal_busy == 0 1755 #endif 1756 ) 1757 return NUL; 1758 1759 local_State = get_real_state(); 1760 1761 vgetc_busy = TRUE; 1762 1763 if (advance) 1764 KeyStuffed = FALSE; 1765 1766 init_typebuf(); 1767 start_stuff(); 1768 if (advance && typebuf.tb_maplen == 0) 1769 Exec_reg = FALSE; 1770 do 1771 { 1772 /* 1773 * get a character: 1. from the stuffbuffer 1774 */ 1775 if (typeahead_char != 0) 1776 { 1777 c = typeahead_char; 1778 if (advance) 1779 typeahead_char = 0; 1780 } 1781 else 1782 c = read_stuff(advance); 1783 if (c != NUL && !got_int) 1784 { 1785 if (advance) 1786 { 1787 /* KeyTyped = FALSE; When the command that stuffed something 1788 * was typed, behave like the stuffed command was typed. 1789 * needed for CTRL-W CTRl-] to open a fold, for example. */ 1790 KeyStuffed = TRUE; 1791 } 1792 if (typebuf.tb_no_abbr_cnt == 0) 1793 typebuf.tb_no_abbr_cnt = 1; /* no abbreviations now */ 1794 } 1795 else 1796 { 1797 /* 1798 * Loop until we either find a matching mapped key, or we 1799 * are sure that it is not a mapped key. 1800 * If a mapped key sequence is found we go back to the start to 1801 * try re-mapping. 1802 */ 1803 for (;;) 1804 { 1805 /* 1806 * ui_breakcheck() is slow, don't use it too often when 1807 * inside a mapping. But call it each time for typed 1808 * characters. 1809 */ 1810 if (typebuf.tb_maplen) 1811 line_breakcheck(); 1812 else 1813 ui_breakcheck(); /* check for CTRL-C */ 1814 keylen = 0; 1815 if (got_int) 1816 { 1817 /* flush all input */ 1818 c = inchar(typebuf.tb_buf, typebuf.tb_buflen - 1, 0L, 1819 typebuf.tb_change_cnt); 1820 /* 1821 * If inchar() returns TRUE (script file was active) or we 1822 * are inside a mapping, get out of insert mode. 1823 * Otherwise we behave like having gotten a CTRL-C. 1824 * As a result typing CTRL-C in insert mode will 1825 * really insert a CTRL-C. 1826 */ 1827 if ((c || typebuf.tb_maplen) 1828 && (State & (INSERT + CMDLINE))) 1829 c = ESC; 1830 else 1831 c = Ctrl_C; 1832 flush_buffers(TRUE); /* flush all typeahead */ 1833 1834 /* Also record this character, it might be needed to 1835 * get out of Insert mode. */ 1836 *typebuf.tb_buf = c; 1837 gotchars(typebuf.tb_buf, 1); 1838 cmd_silent = FALSE; 1839 1840 break; 1841 } 1842 else if (typebuf.tb_len > 0) 1843 { 1844 /* 1845 * Check for a mappable key sequence. 1846 * Walk through one maphash[] list until we find an 1847 * entry that matches. 1848 * 1849 * Don't look for mappings if: 1850 * - no_mapping set: mapping disabled (e.g. for CTRL-V) 1851 * - maphash_valid not set: no mappings present. 1852 * - typebuf.tb_buf[typebuf.tb_off] should not be remapped 1853 * - in insert or cmdline mode and 'paste' option set 1854 * - waiting for "hit return to continue" and CR or SPACE 1855 * typed 1856 * - waiting for a char with --more-- 1857 * - in Ctrl-X mode, and we get a valid char for that mode 1858 */ 1859 mp = NULL; 1860 max_mlen = 0; 1861 c1 = typebuf.tb_buf[typebuf.tb_off]; 1862 if (no_mapping == 0 && maphash_valid 1863 && (no_zero_mapping == 0 || c1 != '0') 1864 && (typebuf.tb_maplen == 0 1865 || (p_remap 1866 && (typebuf.tb_noremap[typebuf.tb_off] 1867 & (RM_NONE|RM_ABBR)) == 0)) 1868 && !(p_paste && (State & (INSERT + CMDLINE))) 1869 && !(State == HITRETURN && (c1 == CAR || c1 == ' ')) 1870 && State != ASKMORE 1871 && State != CONFIRM 1872 #ifdef FEAT_INS_EXPAND 1873 && !((ctrl_x_mode != 0 && vim_is_ctrl_x_key(c1)) 1874 || ((continue_status & CONT_LOCAL) 1875 && (c1 == Ctrl_N || c1 == Ctrl_P))) 1876 #endif 1877 ) 1878 { 1879 #ifdef FEAT_LANGMAP 1880 if (c1 == K_SPECIAL) 1881 nolmaplen = 2; 1882 else 1883 { 1884 LANGMAP_ADJUST(c1, TRUE); 1885 nolmaplen = 0; 1886 } 1887 #endif 1888 #ifdef FEAT_LOCALMAP 1889 /* First try buffer-local mappings. */ 1890 mp = curbuf->b_maphash[MAP_HASH(local_State, c1)]; 1891 mp2 = maphash[MAP_HASH(local_State, c1)]; 1892 if (mp == NULL) 1893 { 1894 mp = mp2; 1895 mp2 = NULL; 1896 } 1897 #else 1898 mp = maphash[MAP_HASH(local_State, c1)]; 1899 #endif 1900 /* 1901 * Loop until a partly matching mapping is found or 1902 * all (local) mappings have been checked. 1903 * The longest full match is remembered in "mp_match". 1904 * A full match is only accepted if there is no partly 1905 * match, so "aa" and "aaa" can both be mapped. 1906 */ 1907 mp_match = NULL; 1908 mp_match_len = 0; 1909 for ( ; mp != NULL; 1910 #ifdef FEAT_LOCALMAP 1911 mp->m_next == NULL ? (mp = mp2, mp2 = NULL) : 1912 #endif 1913 (mp = mp->m_next)) 1914 { 1915 /* 1916 * Only consider an entry if the first character 1917 * matches and it is for the current state. 1918 * Skip ":lmap" mappings if keys were mapped. 1919 */ 1920 if (mp->m_keys[0] == c1 1921 && (mp->m_mode & local_State) 1922 && ((mp->m_mode & LANGMAP) == 0 1923 || typebuf.tb_maplen == 0)) 1924 { 1925 #ifdef FEAT_LANGMAP 1926 int nomap = nolmaplen; 1927 int c2; 1928 #endif 1929 /* find the match length of this mapping */ 1930 for (mlen = 1; mlen < typebuf.tb_len; ++mlen) 1931 { 1932 #ifdef FEAT_LANGMAP 1933 c2 = typebuf.tb_buf[typebuf.tb_off + mlen]; 1934 if (nomap > 0) 1935 --nomap; 1936 else if (c2 == K_SPECIAL) 1937 nomap = 2; 1938 else 1939 LANGMAP_ADJUST(c2, TRUE); 1940 if (mp->m_keys[mlen] != c2) 1941 #else 1942 if (mp->m_keys[mlen] != 1943 typebuf.tb_buf[typebuf.tb_off + mlen]) 1944 #endif 1945 break; 1946 } 1947 1948 #ifdef FEAT_MBYTE 1949 /* Don't allow mapping the first byte(s) of a 1950 * multi-byte char. Happens when mapping 1951 * <M-a> and then changing 'encoding'. */ 1952 if (has_mbyte && MB_BYTE2LEN(c1) 1953 > (*mb_ptr2len_check)(mp->m_keys)) 1954 mlen = 0; 1955 #endif 1956 /* 1957 * Check an entry whether it matches. 1958 * - Full match: mlen == keylen 1959 * - Partly match: mlen == typebuf.tb_len 1960 */ 1961 keylen = mp->m_keylen; 1962 if (mlen == keylen 1963 || (mlen == typebuf.tb_len 1964 && typebuf.tb_len < keylen)) 1965 { 1966 /* 1967 * If only script-local mappings are 1968 * allowed, check if the mapping starts 1969 * with K_SNR. 1970 */ 1971 s = typebuf.tb_noremap + typebuf.tb_off; 1972 if (*s == RM_SCRIPT 1973 && (mp->m_keys[0] != K_SPECIAL 1974 || mp->m_keys[1] != KS_EXTRA 1975 || mp->m_keys[2] 1976 != (int)KE_SNR)) 1977 continue; 1978 /* 1979 * If one of the typed keys cannot be 1980 * remapped, skip the entry. 1981 */ 1982 for (n = mlen; --n >= 0; ) 1983 if (*s++ & (RM_NONE|RM_ABBR)) 1984 break; 1985 if (n >= 0) 1986 continue; 1987 1988 if (keylen > typebuf.tb_len) 1989 { 1990 if (!timedout) 1991 { 1992 /* break at a partly match */ 1993 keylen = KL_PART_MAP; 1994 break; 1995 } 1996 } 1997 else if (keylen > mp_match_len) 1998 { 1999 /* found a longer match */ 2000 mp_match = mp; 2001 mp_match_len = keylen; 2002 } 2003 } 2004 else 2005 /* No match; may have to check for 2006 * termcode at next character. */ 2007 if (max_mlen < mlen) 2008 max_mlen = mlen; 2009 } 2010 } 2011 2012 /* If no partly match found, use the longest full 2013 * match. */ 2014 if (keylen != KL_PART_MAP) 2015 { 2016 mp = mp_match; 2017 keylen = mp_match_len; 2018 } 2019 } 2020 2021 /* Check for match with 'pastetoggle' */ 2022 if (*p_pt != NUL && mp == NULL && (State & (INSERT|NORMAL))) 2023 { 2024 for (mlen = 0; mlen < typebuf.tb_len && p_pt[mlen]; 2025 ++mlen) 2026 if (p_pt[mlen] != typebuf.tb_buf[typebuf.tb_off 2027 + mlen]) 2028 break; 2029 if (p_pt[mlen] == NUL) /* match */ 2030 { 2031 /* write chars to script file(s) */ 2032 if (mlen > typebuf.tb_maplen) 2033 gotchars(typebuf.tb_buf + typebuf.tb_off 2034 + typebuf.tb_maplen, 2035 mlen - typebuf.tb_maplen); 2036 2037 del_typebuf(mlen, 0); /* remove the chars */ 2038 set_option_value((char_u *)"paste", 2039 (long)!p_paste, NULL, 0); 2040 if (!(State & INSERT)) 2041 { 2042 msg_col = 0; 2043 msg_row = Rows - 1; 2044 msg_clr_eos(); /* clear ruler */ 2045 } 2046 showmode(); 2047 setcursor(); 2048 continue; 2049 } 2050 /* Need more chars for partly match. */ 2051 if (mlen == typebuf.tb_len) 2052 keylen = KL_PART_MAP; 2053 else if (max_mlen < mlen) 2054 /* no match, may have to check for termcode at 2055 * next character */ 2056 max_mlen = mlen + 1; 2057 } 2058 2059 if ((mp == NULL || max_mlen >= mp_match_len) 2060 && keylen != KL_PART_MAP) 2061 { 2062 /* 2063 * When no matching mapping found or found a 2064 * non-matching mapping that matches at least what the 2065 * matching mapping matched: 2066 * Check if we have a terminal code, when: 2067 * mapping is allowed, 2068 * keys have not been mapped, 2069 * and not an ESC sequence, not in insert mode or 2070 * p_ek is on, 2071 * and when not timed out, 2072 */ 2073 if ((no_mapping == 0 || allow_keys != 0) 2074 && (typebuf.tb_maplen == 0 2075 || (p_remap && typebuf.tb_noremap[ 2076 typebuf.tb_off] == RM_YES)) 2077 && !timedout) 2078 { 2079 keylen = check_termcode(max_mlen + 1, NULL, 0); 2080 2081 /* 2082 * When getting a partial match, but the last 2083 * characters were not typed, don't wait for a 2084 * typed character to complete the termcode. 2085 * This helps a lot when a ":normal" command ends 2086 * in an ESC. 2087 */ 2088 if (keylen < 0 2089 && typebuf.tb_len == typebuf.tb_maplen) 2090 keylen = 0; 2091 } 2092 else 2093 keylen = 0; 2094 if (keylen == 0) /* no matching terminal code */ 2095 { 2096 #ifdef AMIGA /* check for window bounds report */ 2097 if (typebuf.tb_maplen == 0 && (typebuf.tb_buf[ 2098 typebuf.tb_off] & 0xff) == CSI) 2099 { 2100 for (s = typebuf.tb_buf + typebuf.tb_off + 1; 2101 s < typebuf.tb_buf + typebuf.tb_off 2102 + typebuf.tb_len 2103 && (VIM_ISDIGIT(*s) || *s == ';' 2104 || *s == ' '); 2105 ++s) 2106 ; 2107 if (*s == 'r' || *s == '|') /* found one */ 2108 { 2109 del_typebuf((int)(s + 1 - 2110 (typebuf.tb_buf + typebuf.tb_off)), 0); 2111 /* get size and redraw screen */ 2112 shell_resized(); 2113 continue; 2114 } 2115 if (*s == NUL) /* need more characters */ 2116 keylen = KL_PART_KEY; 2117 } 2118 if (keylen >= 0) 2119 #endif 2120 /* When there was a matching mapping and no 2121 * termcode could be replaced after another one, 2122 * use that mapping. */ 2123 if (mp == NULL) 2124 { 2125 /* 2126 * get a character: 2. from the typeahead buffer 2127 */ 2128 c = typebuf.tb_buf[typebuf.tb_off] & 255; 2129 if (advance) /* remove chars from tb_buf */ 2130 { 2131 cmd_silent = (typebuf.tb_silent > 0); 2132 if (typebuf.tb_maplen > 0) 2133 KeyTyped = FALSE; 2134 else 2135 { 2136 KeyTyped = TRUE; 2137 /* write char to script file(s) */ 2138 gotchars(typebuf.tb_buf 2139 + typebuf.tb_off, 1); 2140 } 2141 KeyNoremap = (typebuf.tb_noremap[ 2142 typebuf.tb_off] 2143 & (RM_NONE|RM_SCRIPT)); 2144 del_typebuf(1, 0); 2145 } 2146 break; /* got character, break for loop */ 2147 } 2148 } 2149 if (keylen > 0) /* full matching terminal code */ 2150 { 2151 #if defined(FEAT_GUI) && defined(FEAT_MENU) 2152 if (typebuf.tb_buf[typebuf.tb_off] == K_SPECIAL 2153 && typebuf.tb_buf[typebuf.tb_off + 1] 2154 == KS_MENU) 2155 { 2156 /* 2157 * Using a menu may cause a break in undo! 2158 * It's like using gotchars(), but without 2159 * recording or writing to a script file. 2160 */ 2161 may_sync_undo(); 2162 del_typebuf(3, 0); 2163 idx = get_menu_index(current_menu, local_State); 2164 if (idx != MENU_INDEX_INVALID) 2165 { 2166 # ifdef FEAT_VISUAL 2167 /* 2168 * In Select mode, a Visual mode menu is 2169 * used. Switch to Visual mode 2170 * temporarily. Append K_SELECT to switch 2171 * back to Select mode. 2172 */ 2173 if (VIsual_active && VIsual_select) 2174 { 2175 VIsual_select = FALSE; 2176 (void)ins_typebuf(K_SELECT_STRING, 2177 REMAP_NONE, 0, TRUE, FALSE); 2178 } 2179 # endif 2180 ins_typebuf(current_menu->strings[idx], 2181 current_menu->noremap[idx], 2182 0, TRUE, 2183 current_menu->silent[idx]); 2184 } 2185 } 2186 #endif /* FEAT_GUI */ 2187 continue; /* try mapping again */ 2188 } 2189 2190 /* Partial match: get some more characters. When a 2191 * matching mapping was found use that one. */ 2192 if (mp == NULL || keylen < 0) 2193 keylen = KL_PART_KEY; 2194 else 2195 keylen = mp_match_len; 2196 } 2197 2198 /* complete match */ 2199 if (keylen >= 0 && keylen <= typebuf.tb_len) 2200 { 2201 /* write chars to script file(s) */ 2202 if (keylen > typebuf.tb_maplen) 2203 gotchars(typebuf.tb_buf + typebuf.tb_off 2204 + typebuf.tb_maplen, 2205 keylen - typebuf.tb_maplen); 2206 2207 cmd_silent = (typebuf.tb_silent > 0); 2208 del_typebuf(keylen, 0); /* remove the mapped keys */ 2209 2210 /* 2211 * Put the replacement string in front of mapstr. 2212 * The depth check catches ":map x y" and ":map y x". 2213 */ 2214 if (++mapdepth >= p_mmd) 2215 { 2216 EMSG(_("E223: recursive mapping")); 2217 if (State & CMDLINE) 2218 redrawcmdline(); 2219 else 2220 setcursor(); 2221 flush_buffers(FALSE); 2222 mapdepth = 0; /* for next one */ 2223 c = -1; 2224 break; 2225 } 2226 2227 #ifdef FEAT_VISUAL 2228 /* 2229 * In Select mode, a Visual mode mapping is used. 2230 * Switch to Visual mode temporarily. Append K_SELECT 2231 * to switch back to Select mode. 2232 */ 2233 if (VIsual_active && VIsual_select) 2234 { 2235 VIsual_select = FALSE; 2236 (void)ins_typebuf(K_SELECT_STRING, REMAP_NONE, 2237 0, TRUE, FALSE); 2238 } 2239 #endif 2240 2241 /* 2242 * Insert the 'to' part in the typebuf.tb_buf. 2243 * If 'from' field is the same as the start of the 2244 * 'to' field, don't remap the first character (but do 2245 * allow abbreviations). 2246 * If m_noremap is set, don't remap the whole 'to' 2247 * part. 2248 */ 2249 if (ins_typebuf(mp->m_str, 2250 mp->m_noremap != REMAP_YES 2251 ? mp->m_noremap 2252 : STRNCMP(mp->m_str, mp->m_keys, 2253 (size_t)keylen) != 0 2254 ? REMAP_YES : REMAP_SKIP, 2255 0, TRUE, cmd_silent || mp->m_silent) == FAIL) 2256 { 2257 c = -1; 2258 break; 2259 } 2260 continue; 2261 } 2262 } 2263 2264 /* 2265 * get a character: 3. from the user - handle <Esc> in Insert mode 2266 */ 2267 /* 2268 * special case: if we get an <ESC> in insert mode and there 2269 * are no more characters at once, we pretend to go out of 2270 * insert mode. This prevents the one second delay after 2271 * typing an <ESC>. If we get something after all, we may 2272 * have to redisplay the mode. That the cursor is in the wrong 2273 * place does not matter. 2274 */ 2275 c = 0; 2276 #ifdef FEAT_CMDL_INFO 2277 new_wcol = curwin->w_wcol; 2278 new_wrow = curwin->w_wrow; 2279 #endif 2280 if ( advance 2281 && typebuf.tb_len == 1 2282 && typebuf.tb_buf[typebuf.tb_off] == ESC 2283 && !no_mapping 2284 #ifdef FEAT_EX_EXTRA 2285 && ex_normal_busy == 0 2286 #endif 2287 && typebuf.tb_maplen == 0 2288 && (State & INSERT) 2289 && (p_timeout || (keylen == KL_PART_KEY && p_ttimeout)) 2290 && (c = inchar(typebuf.tb_buf + typebuf.tb_off 2291 + typebuf.tb_len, 3, 25L, 2292 typebuf.tb_change_cnt)) == 0) 2293 { 2294 colnr_T col = 0, vcol; 2295 char_u *ptr; 2296 2297 if (p_smd) 2298 { 2299 unshowmode(TRUE); 2300 mode_deleted = TRUE; 2301 } 2302 #ifdef FEAT_GUI 2303 /* may show different cursor shape */ 2304 if (gui.in_use) 2305 { 2306 int save_State; 2307 2308 save_State = State; 2309 State = NORMAL; 2310 gui_update_cursor(TRUE, FALSE); 2311 State = save_State; 2312 shape_changed = TRUE; 2313 } 2314 #endif 2315 validate_cursor(); 2316 old_wcol = curwin->w_wcol; 2317 old_wrow = curwin->w_wrow; 2318 2319 /* move cursor left, if possible */ 2320 if (curwin->w_cursor.col != 0) 2321 { 2322 if (curwin->w_wcol > 0) 2323 { 2324 if (did_ai) 2325 { 2326 /* 2327 * We are expecting to truncate the trailing 2328 * white-space, so find the last non-white 2329 * character -- webb 2330 */ 2331 col = vcol = curwin->w_wcol = 0; 2332 ptr = ml_get_curline(); 2333 while (col < curwin->w_cursor.col) 2334 { 2335 if (!vim_iswhite(ptr[col])) 2336 curwin->w_wcol = vcol; 2337 vcol += lbr_chartabsize(ptr + col, 2338 (colnr_T)vcol); 2339 #ifdef FEAT_MBYTE 2340 if (has_mbyte) 2341 col += (*mb_ptr2len_check)(ptr + col); 2342 else 2343 #endif 2344 ++col; 2345 } 2346 curwin->w_wrow = curwin->w_cline_row 2347 + curwin->w_wcol / W_WIDTH(curwin); 2348 curwin->w_wcol %= W_WIDTH(curwin); 2349 curwin->w_wcol += curwin_col_off(); 2350 #ifdef FEAT_MBYTE 2351 col = 0; /* no correction needed */ 2352 #endif 2353 } 2354 else 2355 { 2356 --curwin->w_wcol; 2357 #ifdef FEAT_MBYTE 2358 col = curwin->w_cursor.col - 1; 2359 #endif 2360 } 2361 } 2362 else if (curwin->w_p_wrap && curwin->w_wrow) 2363 { 2364 --curwin->w_wrow; 2365 curwin->w_wcol = W_WIDTH(curwin) - 1; 2366 #ifdef FEAT_MBYTE 2367 col = curwin->w_cursor.col - 1; 2368 #endif 2369 } 2370 #ifdef FEAT_MBYTE 2371 if (has_mbyte && col > 0 && curwin->w_wcol > 0) 2372 { 2373 /* Correct when the cursor is on the right halve 2374 * of a double-wide character. */ 2375 ptr = ml_get_curline(); 2376 col -= (*mb_head_off)(ptr, ptr + col); 2377 if ((*mb_ptr2cells)(ptr + col) > 1) 2378 --curwin->w_wcol; 2379 } 2380 #endif 2381 } 2382 setcursor(); 2383 out_flush(); 2384 #ifdef FEAT_CMDL_INFO 2385 new_wcol = curwin->w_wcol; 2386 new_wrow = curwin->w_wrow; 2387 #endif 2388 curwin->w_wcol = old_wcol; 2389 curwin->w_wrow = old_wrow; 2390 } 2391 if (c < 0) 2392 continue; /* end of input script reached */ 2393 typebuf.tb_len += c; 2394 2395 /* buffer full, don't map */ 2396 if (typebuf.tb_len >= typebuf.tb_maplen + MAXMAPLEN) 2397 { 2398 timedout = TRUE; 2399 continue; 2400 } 2401 2402 #ifdef FEAT_EX_EXTRA 2403 if (ex_normal_busy > 0) 2404 { 2405 # ifdef FEAT_CMDWIN 2406 static int tc = 0; 2407 # endif 2408 2409 /* No typeahead left and inside ":normal". Must return 2410 * something to avoid getting stuck. When an incomplete 2411 * mapping is present, behave like it timed out. */ 2412 if (typebuf.tb_len > 0) 2413 { 2414 timedout = TRUE; 2415 continue; 2416 } 2417 /* When 'insertmode' is set, ESC just beeps in Insert 2418 * mode. Use CTRL-L to make edit() return. 2419 * For the command line only CTRL-C always breaks it. 2420 * For the cmdline window: Alternate between ESC and 2421 * CTRL-C: ESC for most situations and CTRL-C to close the 2422 * cmdline window. */ 2423 if (p_im && (State & INSERT)) 2424 c = Ctrl_L; 2425 else if ((State & CMDLINE) 2426 # ifdef FEAT_CMDWIN 2427 || (cmdwin_type > 0 && tc == ESC) 2428 # endif 2429 ) 2430 c = Ctrl_C; 2431 else 2432 c = ESC; 2433 # ifdef FEAT_CMDWIN 2434 tc = c; 2435 # endif 2436 break; 2437 } 2438 #endif 2439 2440 /* 2441 * get a character: 3. from the user - update display 2442 */ 2443 /* In insert mode a screen update is skipped when characters 2444 * are still available. But when those available characters 2445 * are part of a mapping, and we are going to do a blocking 2446 * wait here. Need to update the screen to display the 2447 * changed text so far. */ 2448 if ((State & INSERT) && advance && must_redraw != 0) 2449 { 2450 update_screen(0); 2451 setcursor(); /* put cursor back where it belongs */ 2452 } 2453 2454 /* 2455 * If we have a partial match (and are going to wait for more 2456 * input from the user), show the partially matched characters 2457 * to the user with showcmd. 2458 */ 2459 #ifdef FEAT_CMDL_INFO 2460 i = 0; 2461 #endif 2462 c1 = 0; 2463 if (typebuf.tb_len > 0 && advance && !exmode_active) 2464 { 2465 if (((State & (NORMAL | INSERT)) || State == LANGMAP) 2466 && State != HITRETURN) 2467 { 2468 /* this looks nice when typing a dead character map */ 2469 if (State & INSERT 2470 && ptr2cells(typebuf.tb_buf + typebuf.tb_off 2471 + typebuf.tb_len - 1) == 1) 2472 { 2473 edit_putchar(typebuf.tb_buf[typebuf.tb_off 2474 + typebuf.tb_len - 1], FALSE); 2475 setcursor(); /* put cursor back where it belongs */ 2476 c1 = 1; 2477 } 2478 #ifdef FEAT_CMDL_INFO 2479 /* need to use the col and row from above here */ 2480 old_wcol = curwin->w_wcol; 2481 old_wrow = curwin->w_wrow; 2482 curwin->w_wcol = new_wcol; 2483 curwin->w_wrow = new_wrow; 2484 push_showcmd(); 2485 if (typebuf.tb_len > SHOWCMD_COLS) 2486 i = typebuf.tb_len - SHOWCMD_COLS; 2487 while (i < typebuf.tb_len) 2488 (void)add_to_showcmd(typebuf.tb_buf[typebuf.tb_off 2489 + i++]); 2490 curwin->w_wcol = old_wcol; 2491 curwin->w_wrow = old_wrow; 2492 #endif 2493 } 2494 2495 /* this looks nice when typing a dead character map */ 2496 if ((State & CMDLINE) 2497 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL) 2498 && cmdline_star == 0 2499 #endif 2500 && ptr2cells(typebuf.tb_buf + typebuf.tb_off 2501 + typebuf.tb_len - 1) == 1) 2502 { 2503 putcmdline(typebuf.tb_buf[typebuf.tb_off 2504 + typebuf.tb_len - 1], FALSE); 2505 c1 = 1; 2506 } 2507 } 2508 2509 /* 2510 * get a character: 3. from the user - get it 2511 */ 2512 c = inchar(typebuf.tb_buf + typebuf.tb_off + typebuf.tb_len, 2513 typebuf.tb_buflen - typebuf.tb_off - typebuf.tb_len - 1, 2514 !advance 2515 ? 0 2516 : ((typebuf.tb_len == 0 2517 || !(p_timeout || (p_ttimeout 2518 && keylen == KL_PART_KEY))) 2519 ? -1L 2520 : ((keylen == KL_PART_KEY && p_ttm >= 0) 2521 ? p_ttm 2522 : p_tm)), typebuf.tb_change_cnt); 2523 2524 #ifdef FEAT_CMDL_INFO 2525 if (i != 0) 2526 pop_showcmd(); 2527 #endif 2528 if (c1 == 1) 2529 { 2530 if (State & INSERT) 2531 edit_unputchar(); 2532 if (State & CMDLINE) 2533 unputcmdline(); 2534 setcursor(); /* put cursor back where it belongs */ 2535 } 2536 2537 if (c < 0) 2538 continue; /* end of input script reached */ 2539 if (c == NUL) /* no character available */ 2540 { 2541 if (!advance) 2542 break; 2543 if (typebuf.tb_len > 0) /* timed out */ 2544 { 2545 timedout = TRUE; 2546 continue; 2547 } 2548 } 2549 else 2550 { /* allow mapping for just typed characters */ 2551 while (typebuf.tb_buf[typebuf.tb_off 2552 + typebuf.tb_len] != NUL) 2553 typebuf.tb_noremap[typebuf.tb_off 2554 + typebuf.tb_len++] = RM_YES; 2555 #ifdef USE_IM_CONTROL 2556 /* Get IM status right after getting keys, not after the 2557 * timeout for a mapping (focus may be lost by then). */ 2558 vgetc_im_active = im_get_status(); 2559 #endif 2560 } 2561 } /* for (;;) */ 2562 } /* if (!character from stuffbuf) */ 2563 2564 /* if advance is FALSE don't loop on NULs */ 2565 } while (c < 0 || (advance && c == NUL)); 2566 2567 /* 2568 * The "INSERT" message is taken care of here: 2569 * if we return an ESC to exit insert mode, the message is deleted 2570 * if we don't return an ESC but deleted the message before, redisplay it 2571 */ 2572 if (advance && p_smd && (State & INSERT)) 2573 { 2574 if (c == ESC && !mode_deleted && !no_mapping) 2575 { 2576 if (typebuf.tb_len && !KeyTyped) 2577 redraw_cmdline = TRUE; /* delete mode later */ 2578 else 2579 unshowmode(FALSE); 2580 } 2581 else if (c != ESC && mode_deleted) 2582 { 2583 if (typebuf.tb_len && !KeyTyped) 2584 redraw_cmdline = TRUE; /* show mode later */ 2585 else 2586 showmode(); 2587 } 2588 } 2589 #ifdef FEAT_GUI 2590 /* may unshow different cursor shape */ 2591 if (gui.in_use && shape_changed) 2592 gui_update_cursor(TRUE, FALSE); 2593 #endif 2594 2595 vgetc_busy = FALSE; 2596 2597 return c; 2598 } 2599 2600 /* 2601 * inchar() - get one character from 2602 * 1. a scriptfile 2603 * 2. the keyboard 2604 * 2605 * As much characters as we can get (upto 'maxlen') are put in "buf" and 2606 * NUL terminated (buffer length must be 'maxlen' + 1). 2607 * Minimum for "maxlen" is 3!!!! 2608 * 2609 * "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into 2610 * it. When typebuf.tb_change_cnt changes (e.g., when a message is received 2611 * from a remote client) "buf" can no longer be used. "tb_change_cnt" is 0 2612 * otherwise. 2613 * 2614 * If we got an interrupt all input is read until none is available. 2615 * 2616 * If wait_time == 0 there is no waiting for the char. 2617 * If wait_time == n we wait for n msec for a character to arrive. 2618 * If wait_time == -1 we wait forever for a character to arrive. 2619 * 2620 * Return the number of obtained characters. 2621 * Return -1 when end of input script reached. 2622 */ 2623 int 2624 inchar(buf, maxlen, wait_time, tb_change_cnt) 2625 char_u *buf; 2626 int maxlen; 2627 long wait_time; /* milli seconds */ 2628 int tb_change_cnt; 2629 { 2630 int len = 0; /* init for GCC */ 2631 int retesc = FALSE; /* return ESC with gotint */ 2632 int script_char; 2633 2634 if (wait_time == -1L || wait_time > 100L) /* flush output before waiting */ 2635 { 2636 cursor_on(); 2637 out_flush(); 2638 #ifdef FEAT_GUI 2639 if (gui.in_use) 2640 { 2641 gui_update_cursor(FALSE, FALSE); 2642 # ifdef FEAT_MOUSESHAPE 2643 if (postponed_mouseshape) 2644 update_mouseshape(-1); 2645 # endif 2646 } 2647 #endif 2648 } 2649 2650 /* 2651 * Don't reset these when at the hit-return prompt, otherwise a endless 2652 * recursive loop may result (write error in swapfile, hit-return, timeout 2653 * on char wait, flush swapfile, write error....). 2654 */ 2655 if (State != HITRETURN) 2656 { 2657 did_outofmem_msg = FALSE; /* display out of memory message (again) */ 2658 did_swapwrite_msg = FALSE; /* display swap file write error again */ 2659 } 2660 undo_off = FALSE; /* restart undo now */ 2661 2662 /* 2663 * first try script file 2664 * If interrupted: Stop reading script files. 2665 */ 2666 script_char = -1; 2667 while (scriptin[curscript] != NULL && script_char < 0) 2668 { 2669 if (got_int || (script_char = getc(scriptin[curscript])) < 0) 2670 { 2671 /* Reached EOF. 2672 * Careful: closescript() frees typebuf.tb_buf[] and buf[] may 2673 * point inside typebuf.tb_buf[]. Don't use buf[] after this! */ 2674 closescript(); 2675 /* 2676 * When reading script file is interrupted, return an ESC to get 2677 * back to normal mode. 2678 * Otherwise return -1, because typebuf.tb_buf[] has changed. 2679 */ 2680 if (got_int) 2681 retesc = TRUE; 2682 else 2683 return -1; 2684 } 2685 else 2686 { 2687 buf[0] = script_char; 2688 len = 1; 2689 } 2690 } 2691 2692 if (script_char < 0) /* did not get a character from script */ 2693 { 2694 /* 2695 * If we got an interrupt, skip all previously typed characters and 2696 * return TRUE if quit reading script file. 2697 * Stop reading typeahead when a single CTRL-C was read, 2698 * fill_input_buf() returns this when not able to read from stdin. 2699 * Don't use buf[] here, closescript() may have freed typebuf.tb_buf[] 2700 * and buf may be pointing inside typebuf.tb_buf[]. 2701 */ 2702 if (got_int) 2703 { 2704 #define DUM_LEN MAXMAPLEN * 3 + 3 2705 char_u dum[DUM_LEN + 1]; 2706 2707 for (;;) 2708 { 2709 len = ui_inchar(dum, DUM_LEN, 0L, 0); 2710 if (len == 0 || (len == 1 && dum[0] == 3)) 2711 break; 2712 } 2713 return retesc; 2714 } 2715 2716 /* 2717 * Always flush the output characters when getting input characters 2718 * from the user. 2719 */ 2720 out_flush(); 2721 2722 /* 2723 * Fill up to a third of the buffer, because each character may be 2724 * tripled below. 2725 */ 2726 len = ui_inchar(buf, maxlen / 3, wait_time, tb_change_cnt); 2727 } 2728 2729 if (typebuf_changed(tb_change_cnt)) 2730 return 0; 2731 2732 return fix_input_buffer(buf, len, script_char >= 0); 2733 } 2734 2735 /* 2736 * Fix typed characters for use by vgetc() and check_termcode(). 2737 * buf[] must have room to triple the number of bytes! 2738 * Returns the new length. 2739 */ 2740 int 2741 fix_input_buffer(buf, len, script) 2742 char_u *buf; 2743 int len; 2744 int script; /* TRUE when reading from a script */ 2745 { 2746 int i; 2747 char_u *p = buf; 2748 2749 /* 2750 * Two characters are special: NUL and K_SPECIAL. 2751 * When compiled With the GUI CSI is also special. 2752 * Replace NUL by K_SPECIAL KS_ZERO KE_FILLER 2753 * Replace K_SPECIAL by K_SPECIAL KS_SPECIAL KE_FILLER 2754 * Replace CSI by K_SPECIAL KS_EXTRA KE_CSI 2755 * Don't replace K_SPECIAL when reading a script file. 2756 */ 2757 for (i = len; --i >= 0; ++p) 2758 { 2759 #ifdef FEAT_GUI 2760 /* When the GUI is used any character can come after a CSI, don't 2761 * escape it. */ 2762 if (gui.in_use && p[0] == CSI && i >= 2) 2763 { 2764 p += 2; 2765 i -= 2; 2766 } 2767 /* When the GUI is not used CSI needs to be escaped. */ 2768 else if (!gui.in_use && p[0] == CSI) 2769 { 2770 mch_memmove(p + 3, p + 1, (size_t)i); 2771 *p++ = K_SPECIAL; 2772 *p++ = KS_EXTRA; 2773 *p = (int)KE_CSI; 2774 len += 2; 2775 } 2776 else 2777 #endif 2778 if (p[0] == NUL || (p[0] == K_SPECIAL && !script 2779 #if defined(WIN3264) && !defined(FEAT_GUI) 2780 /* Win32 console passes modifiers */ 2781 && (i < 2 || p[1] != KS_MODIFIER) 2782 #endif 2783 )) 2784 { 2785 mch_memmove(p + 3, p + 1, (size_t)i); 2786 p[2] = K_THIRD(p[0]); 2787 p[1] = K_SECOND(p[0]); 2788 p[0] = K_SPECIAL; 2789 p += 2; 2790 len += 2; 2791 } 2792 } 2793 *p = NUL; /* add trailing NUL */ 2794 return len; 2795 } 2796 2797 #if defined(USE_INPUT_BUF) || defined(PROTO) 2798 /* 2799 * Return TRUE when bytes are in the input buffer or in the typeahead buffer. 2800 * Normally the input buffer would be sufficient, but the server_to_input_buf() 2801 * may insert characters in the typeahead buffer while we are waiting for 2802 * input to arrive. 2803 */ 2804 int 2805 input_available() 2806 { 2807 return (!vim_is_input_buf_empty() 2808 # ifdef FEAT_CLIENTSERVER 2809 || received_from_client 2810 # endif 2811 ); 2812 } 2813 #endif 2814 2815 /* 2816 * map[!] : show all key mappings 2817 * map[!] {lhs} : show key mapping for {lhs} 2818 * map[!] {lhs} {rhs} : set key mapping for {lhs} to {rhs} 2819 * noremap[!] {lhs} {rhs} : same, but no remapping for {rhs} 2820 * unmap[!] {lhs} : remove key mapping for {lhs} 2821 * abbr : show all abbreviations 2822 * abbr {lhs} : show abbreviations for {lhs} 2823 * abbr {lhs} {rhs} : set abbreviation for {lhs} to {rhs} 2824 * noreabbr {lhs} {rhs} : same, but no remapping for {rhs} 2825 * unabbr {lhs} : remove abbreviation for {lhs} 2826 * 2827 * maptype: 0 for :map, 1 for :unmap, 2 for noremap. 2828 * 2829 * arg is pointer to any arguments. Note: arg cannot be a read-only string, 2830 * it will be modified. 2831 * 2832 * for :map mode is NORMAL + VISUAL + OP_PENDING 2833 * for :map! mode is INSERT + CMDLINE 2834 * for :cmap mode is CMDLINE 2835 * for :imap mode is INSERT 2836 * for :lmap mode is LANGMAP 2837 * for :nmap mode is NORMAL 2838 * for :vmap mode is VISUAL 2839 * for :omap mode is OP_PENDING 2840 * 2841 * for :abbr mode is INSERT + CMDLINE 2842 * for :iabbr mode is INSERT 2843 * for :cabbr mode is CMDLINE 2844 * 2845 * Return 0 for success 2846 * 1 for invalid arguments 2847 * 2 for no match 2848 * 4 for out of mem 2849 * 5 for entry not unique 2850 */ 2851 int 2852 do_map(maptype, arg, mode, abbrev) 2853 int maptype; 2854 char_u *arg; 2855 int mode; 2856 int abbrev; /* not a mapping but an abbreviation */ 2857 { 2858 char_u *keys; 2859 mapblock_T *mp, **mpp; 2860 char_u *rhs; 2861 char_u *p; 2862 int n; 2863 int len = 0; /* init for GCC */ 2864 char_u *newstr; 2865 int hasarg; 2866 int haskey; 2867 int did_it = FALSE; 2868 #ifdef FEAT_LOCALMAP 2869 int did_local = FALSE; 2870 #endif 2871 int round; 2872 char_u *keys_buf = NULL; 2873 char_u *arg_buf = NULL; 2874 int retval = 0; 2875 int do_backslash; 2876 int hash; 2877 int new_hash; 2878 mapblock_T **abbr_table; 2879 mapblock_T **map_table; 2880 int unique = FALSE; 2881 int silent = FALSE; 2882 int noremap; 2883 2884 keys = arg; 2885 map_table = maphash; 2886 abbr_table = &first_abbr; 2887 2888 /* For ":noremap" don't remap, otherwise do remap. */ 2889 if (maptype == 2) 2890 noremap = REMAP_NONE; 2891 else 2892 noremap = REMAP_YES; 2893 2894 /* Accept <buffer>, <silent>, <script> and <unique> in any order. */ 2895 for (;;) 2896 { 2897 #ifdef FEAT_LOCALMAP 2898 /* 2899 * Check for "<buffer>": mapping local to buffer. 2900 */ 2901 if (STRNCMP(keys, "<buffer>", 8) == 0) 2902 { 2903 keys = skipwhite(keys + 8); 2904 map_table = curbuf->b_maphash; 2905 abbr_table = &curbuf->b_first_abbr; 2906 continue; 2907 } 2908 #endif 2909 2910 /* 2911 * Check for "<silent>": don't echo commands. 2912 */ 2913 if (STRNCMP(keys, "<silent>", 8) == 0) 2914 { 2915 keys = skipwhite(keys + 8); 2916 silent = TRUE; 2917 continue; 2918 } 2919 2920 #ifdef FEAT_EVAL 2921 /* 2922 * Check for "<script>": remap script-local mappings only 2923 */ 2924 if (STRNCMP(keys, "<script>", 8) == 0) 2925 { 2926 keys = skipwhite(keys + 8); 2927 noremap = REMAP_SCRIPT; 2928 continue; 2929 } 2930 #endif 2931 /* 2932 * Check for "<unique>": don't overwrite an existing mapping. 2933 */ 2934 if (STRNCMP(keys, "<unique>", 8) == 0) 2935 { 2936 keys = skipwhite(keys + 8); 2937 unique = TRUE; 2938 continue; 2939 } 2940 break; 2941 } 2942 2943 validate_maphash(); 2944 2945 /* 2946 * find end of keys and skip CTRL-Vs (and backslashes) in it 2947 * Accept backslash like CTRL-V when 'cpoptions' does not contain 'B'. 2948 * with :unmap white space is included in the keys, no argument possible 2949 */ 2950 p = keys; 2951 do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL); 2952 while (*p && (maptype == 1 || !vim_iswhite(*p))) 2953 { 2954 if ((p[0] == Ctrl_V || (do_backslash && p[0] == '\\')) && 2955 p[1] != NUL) 2956 ++p; /* skip CTRL-V or backslash */ 2957 ++p; 2958 } 2959 if (*p != NUL) 2960 *p++ = NUL; 2961 p = skipwhite(p); 2962 rhs = p; 2963 hasarg = (*rhs != NUL); 2964 haskey = (*keys != NUL); 2965 2966 /* check for :unmap without argument */ 2967 if (maptype == 1 && !haskey) 2968 { 2969 retval = 1; 2970 goto theend; 2971 } 2972 2973 /* 2974 * If mapping has been given as ^V<C_UP> say, then replace the term codes 2975 * with the appropriate two bytes. If it is a shifted special key, unshift 2976 * it too, giving another two bytes. 2977 * replace_termcodes() may move the result to allocated memory, which 2978 * needs to be freed later (*keys_buf and *arg_buf). 2979 * replace_termcodes() also removes CTRL-Vs and sometimes backslashes. 2980 */ 2981 if (haskey) 2982 keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE); 2983 if (hasarg) 2984 { 2985 if (STRICMP(rhs, "<nop>") == 0) /* "<Nop>" means nothing */ 2986 rhs = (char_u *)""; 2987 else 2988 rhs = replace_termcodes(rhs, &arg_buf, FALSE, TRUE); 2989 } 2990 2991 #ifdef FEAT_FKMAP 2992 /* 2993 * when in right-to-left mode and alternate keymap option set, 2994 * reverse the character flow in the rhs in Farsi. 2995 */ 2996 if (p_altkeymap && curwin->w_p_rl) 2997 lrswap(rhs); 2998 #endif 2999 3000 /* 3001 * check arguments and translate function keys 3002 */ 3003 if (haskey) 3004 { 3005 len = (int)STRLEN(keys); 3006 if (len > MAXMAPLEN) /* maximum length of MAXMAPLEN chars */ 3007 { 3008 retval = 1; 3009 goto theend; 3010 } 3011 3012 if (abbrev && maptype != 1) 3013 { 3014 /* 3015 * If an abbreviation ends in a keyword character, the 3016 * rest must be all keyword-char or all non-keyword-char. 3017 * Otherwise we won't be able to find the start of it in a 3018 * vi-compatible way. 3019 */ 3020 #ifdef FEAT_MBYTE 3021 if (has_mbyte) 3022 { 3023 int first, last; 3024 int same = -1; 3025 3026 first = vim_iswordp(keys); 3027 last = first; 3028 p = keys + mb_ptr2len_check(keys); 3029 n = 1; 3030 while (p < keys + len) 3031 { 3032 ++n; /* nr of (multi-byte) chars */ 3033 last = vim_iswordp(p); /* type of last char */ 3034 if (same == -1 && last != first) 3035 same = n - 1; /* count of same char type */ 3036 p += mb_ptr2len_check(p); 3037 } 3038 if (last && n > 2 && same >= 0 && same < n - 1) 3039 { 3040 retval = 1; 3041 goto theend; 3042 } 3043 } 3044 else 3045 #endif 3046 if (vim_iswordc(keys[len - 1])) /* ends in keyword char */ 3047 for (n = 0; n < len - 2; ++n) 3048 if (vim_iswordc(keys[n]) != vim_iswordc(keys[len - 2])) 3049 { 3050 retval = 1; 3051 goto theend; 3052 } 3053 /* An abbrevation cannot contain white space. */ 3054 for (n = 0; n < len; ++n) 3055 if (vim_iswhite(keys[n])) 3056 { 3057 retval = 1; 3058 goto theend; 3059 } 3060 } 3061 } 3062 3063 if (haskey && hasarg && abbrev) /* if we will add an abbreviation */ 3064 no_abbr = FALSE; /* reset flag that indicates there are 3065 no abbreviations */ 3066 3067 if (!haskey || (maptype != 1 && !hasarg)) 3068 msg_start(); 3069 3070 #ifdef FEAT_LOCALMAP 3071 /* 3072 * Check if a new local mapping wasn't already defined globally. 3073 */ 3074 if (map_table == curbuf->b_maphash && haskey && hasarg && maptype != 1) 3075 { 3076 /* need to loop over all global hash lists */ 3077 for (hash = 0; hash < 256 && !got_int; ++hash) 3078 { 3079 if (abbrev) 3080 { 3081 if (hash != 0) /* there is only one abbreviation list */ 3082 break; 3083 mp = first_abbr; 3084 } 3085 else 3086 mp = maphash[hash]; 3087 for ( ; mp != NULL && !got_int; mp = mp->m_next) 3088 { 3089 /* check entries with the same mode */ 3090 if ((mp->m_mode & mode) != 0 3091 && mp->m_keylen == len 3092 && unique 3093 && STRNCMP(mp->m_keys, keys, (size_t)len) == 0) 3094 { 3095 if (abbrev) 3096 EMSG2(_("E224: global abbreviation already exists for %s"), 3097 mp->m_keys); 3098 else 3099 EMSG2(_("E225: global mapping already exists for %s"), 3100 mp->m_keys); 3101 retval = 5; 3102 goto theend; 3103 } 3104 } 3105 } 3106 } 3107 3108 /* 3109 * When listing global mappings, also list buffer-local ones here. 3110 */ 3111 if (map_table != curbuf->b_maphash && !hasarg && maptype != 1) 3112 { 3113 /* need to loop over all global hash lists */ 3114 for (hash = 0; hash < 256 && !got_int; ++hash) 3115 { 3116 if (abbrev) 3117 { 3118 if (hash != 0) /* there is only one abbreviation list */ 3119 break; 3120 mp = curbuf->b_first_abbr; 3121 } 3122 else 3123 mp = curbuf->b_maphash[hash]; 3124 for ( ; mp != NULL && !got_int; mp = mp->m_next) 3125 { 3126 /* check entries with the same mode */ 3127 if ((mp->m_mode & mode) != 0) 3128 { 3129 if (!haskey) /* show all entries */ 3130 { 3131 showmap(mp, TRUE); 3132 did_local = TRUE; 3133 } 3134 else 3135 { 3136 n = mp->m_keylen; 3137 if (STRNCMP(mp->m_keys, keys, 3138 (size_t)(n < len ? n : len)) == 0) 3139 { 3140 showmap(mp, TRUE); 3141 did_local = TRUE; 3142 } 3143 } 3144 } 3145 } 3146 } 3147 } 3148 #endif 3149 3150 /* 3151 * Find an entry in the maphash[] list that matches. 3152 * For :unmap we may loop two times: once to try to unmap an entry with a 3153 * matching 'from' part, a second time, if the first fails, to unmap an 3154 * entry with a matching 'to' part. This was done to allow ":ab foo bar" 3155 * to be unmapped by typing ":unab foo", where "foo" will be replaced by 3156 * "bar" because of the abbreviation. 3157 */ 3158 for (round = 0; (round == 0 || maptype == 1) && round <= 1 3159 && !did_it && !got_int; ++round) 3160 { 3161 /* need to loop over all hash lists */ 3162 for (hash = 0; hash < 256 && !got_int; ++hash) 3163 { 3164 if (abbrev) 3165 { 3166 if (hash != 0) /* there is only one abbreviation list */ 3167 break; 3168 mpp = abbr_table; 3169 } 3170 else 3171 mpp = &(map_table[hash]); 3172 for (mp = *mpp; mp != NULL && !got_int; mp = *mpp) 3173 { 3174 3175 if (!(mp->m_mode & mode)) /* skip entries with wrong mode */ 3176 { 3177 mpp = &(mp->m_next); 3178 continue; 3179 } 3180 if (!haskey) /* show all entries */ 3181 { 3182 showmap(mp, map_table != maphash); 3183 did_it = TRUE; 3184 } 3185 else /* do we have a match? */ 3186 { 3187 if (round) /* second round: Try unmap "rhs" string */ 3188 { 3189 n = (int)STRLEN(mp->m_str); 3190 p = mp->m_str; 3191 } 3192 else 3193 { 3194 n = mp->m_keylen; 3195 p = mp->m_keys; 3196 } 3197 if (STRNCMP(p, keys, (size_t)(n < len ? n : len)) == 0) 3198 { 3199 if (maptype == 1) /* delete entry */ 3200 { 3201 /* Only accept a full match. For abbreviations we 3202 * ignore trailing space when matching with the 3203 * "lhs", since an abbreviation can't have 3204 * trailing space. */ 3205 if (n != len && (!abbrev || round || n > len 3206 || *skipwhite(keys + n) != NUL)) 3207 { 3208 mpp = &(mp->m_next); 3209 continue; 3210 } 3211 /* 3212 * We reset the indicated mode bits. If nothing is 3213 * left the entry is deleted below. 3214 */ 3215 mp->m_mode &= ~mode; 3216 did_it = TRUE; /* remember we did something */ 3217 } 3218 else if (!hasarg) /* show matching entry */ 3219 { 3220 showmap(mp, map_table != maphash); 3221 did_it = TRUE; 3222 } 3223 else if (n != len) /* new entry is ambigious */ 3224 { 3225 mpp = &(mp->m_next); 3226 continue; 3227 } 3228 else if (unique) 3229 { 3230 if (abbrev) 3231 EMSG2(_("E226: abbreviation already exists for %s"), 3232 p); 3233 else 3234 EMSG2(_("E227: mapping already exists for %s"), p); 3235 retval = 5; 3236 goto theend; 3237 } 3238 else /* new rhs for existing entry */ 3239 { 3240 mp->m_mode &= ~mode; /* remove mode bits */ 3241 if (mp->m_mode == 0 && !did_it) /* reuse entry */ 3242 { 3243 newstr = vim_strsave(rhs); 3244 if (newstr == NULL) 3245 { 3246 retval = 4; /* no mem */ 3247 goto theend; 3248 } 3249 vim_free(mp->m_str); 3250 mp->m_str = newstr; 3251 mp->m_noremap = noremap; 3252 mp->m_silent = silent; 3253 mp->m_mode = mode; 3254 did_it = TRUE; 3255 } 3256 } 3257 if (mp->m_mode == 0) /* entry can be deleted */ 3258 { 3259 map_free(mpp); 3260 continue; /* continue with *mpp */ 3261 } 3262 3263 /* 3264 * May need to put this entry into another hash list. 3265 */ 3266 new_hash = MAP_HASH(mp->m_mode, mp->m_keys[0]); 3267 if (!abbrev && new_hash != hash) 3268 { 3269 *mpp = mp->m_next; 3270 mp->m_next = map_table[new_hash]; 3271 map_table[new_hash] = mp; 3272 3273 continue; /* continue with *mpp */ 3274 } 3275 } 3276 } 3277 mpp = &(mp->m_next); 3278 } 3279 } 3280 } 3281 3282 if (maptype == 1) /* delete entry */ 3283 { 3284 if (!did_it) 3285 retval = 2; /* no match */ 3286 goto theend; 3287 } 3288 3289 if (!haskey || !hasarg) /* print entries */ 3290 { 3291 if (!did_it 3292 #ifdef FEAT_LOCALMAP 3293 && !did_local 3294 #endif 3295 ) 3296 { 3297 if (abbrev) 3298 MSG(_("No abbreviation found")); 3299 else 3300 MSG(_("No mapping found")); 3301 } 3302 goto theend; /* listing finished */ 3303 } 3304 3305 if (did_it) /* have added the new entry already */ 3306 goto theend; 3307 3308 /* 3309 * Get here when adding a new entry to the maphash[] list or abbrlist. 3310 */ 3311 mp = (mapblock_T *)alloc((unsigned)sizeof(mapblock_T)); 3312 if (mp == NULL) 3313 { 3314 retval = 4; /* no mem */ 3315 goto theend; 3316 } 3317 3318 /* If CTRL-C has been mapped, don't always use it for Interrupting */ 3319 if (*keys == Ctrl_C) 3320 mapped_ctrl_c = TRUE; 3321 3322 mp->m_keys = vim_strsave(keys); 3323 mp->m_str = vim_strsave(rhs); 3324 if (mp->m_keys == NULL || mp->m_str == NULL) 3325 { 3326 vim_free(mp->m_keys); 3327 vim_free(mp->m_str); 3328 vim_free(mp); 3329 retval = 4; /* no mem */ 3330 goto theend; 3331 } 3332 mp->m_keylen = (int)STRLEN(mp->m_keys); 3333 mp->m_noremap = noremap; 3334 mp->m_silent = silent; 3335 mp->m_mode = mode; 3336 3337 /* add the new entry in front of the abbrlist or maphash[] list */ 3338 if (abbrev) 3339 { 3340 mp->m_next = *abbr_table; 3341 *abbr_table = mp; 3342 } 3343 else 3344 { 3345 n = MAP_HASH(mp->m_mode, mp->m_keys[0]); 3346 mp->m_next = map_table[n]; 3347 map_table[n] = mp; 3348 } 3349 3350 theend: 3351 vim_free(keys_buf); 3352 vim_free(arg_buf); 3353 return retval; 3354 } 3355 3356 /* 3357 * Delete one entry from the abbrlist or maphash[]. 3358 * "mpp" is a pointer to the m_next field of the PREVIOUS entry! 3359 */ 3360 static void 3361 map_free(mpp) 3362 mapblock_T **mpp; 3363 { 3364 mapblock_T *mp; 3365 3366 mp = *mpp; 3367 vim_free(mp->m_keys); 3368 vim_free(mp->m_str); 3369 *mpp = mp->m_next; 3370 vim_free(mp); 3371 } 3372 3373 /* 3374 * Initialize maphash[] for first use. 3375 */ 3376 static void 3377 validate_maphash() 3378 { 3379 if (!maphash_valid) 3380 { 3381 vim_memset(maphash, 0, sizeof(maphash)); 3382 maphash_valid = TRUE; 3383 } 3384 } 3385 3386 /* 3387 * Get the mapping mode from the command name. 3388 */ 3389 int 3390 get_map_mode(cmdp, forceit) 3391 char_u **cmdp; 3392 int forceit; 3393 { 3394 char_u *p; 3395 int modec; 3396 int mode; 3397 3398 p = *cmdp; 3399 modec = *p++; 3400 if (modec == 'i') 3401 mode = INSERT; /* :imap */ 3402 else if (modec == 'l') 3403 mode = LANGMAP; /* :lmap */ 3404 else if (modec == 'c') 3405 mode = CMDLINE; /* :cmap */ 3406 else if (modec == 'n' && *p != 'o') /* avoid :noremap */ 3407 mode = NORMAL; /* :nmap */ 3408 else if (modec == 'v') 3409 mode = VISUAL; /* :vmap */ 3410 else if (modec == 'o') 3411 mode = OP_PENDING; /* :omap */ 3412 else 3413 { 3414 --p; 3415 if (forceit) 3416 mode = INSERT + CMDLINE; /* :map ! */ 3417 else 3418 mode = VISUAL + NORMAL + OP_PENDING;/* :map */ 3419 } 3420 3421 *cmdp = p; 3422 return mode; 3423 } 3424 3425 /* 3426 * Clear all mappings or abbreviations. 3427 * 'abbr' should be FALSE for mappings, TRUE for abbreviations. 3428 */ 3429 /*ARGSUSED*/ 3430 void 3431 map_clear(cmdp, arg, forceit, abbr) 3432 char_u *cmdp; 3433 char_u *arg; 3434 int forceit; 3435 int abbr; 3436 { 3437 int mode; 3438 #ifdef FEAT_LOCALMAP 3439 int local; 3440 3441 local = (STRCMP(arg, "<buffer>") == 0); 3442 if (!local && *arg != NUL) 3443 { 3444 EMSG(_(e_invarg)); 3445 return; 3446 } 3447 #endif 3448 3449 mode = get_map_mode(&cmdp, forceit); 3450 map_clear_int(curbuf, mode, 3451 #ifdef FEAT_LOCALMAP 3452 local, 3453 #else 3454 FALSE, 3455 #endif 3456 abbr); 3457 } 3458 3459 /* 3460 * Clear all mappings in "mode". 3461 */ 3462 /*ARGSUSED*/ 3463 void 3464 map_clear_int(buf, mode, local, abbr) 3465 buf_T *buf; /* buffer for local mappings */ 3466 int mode; /* mode in which to delete */ 3467 int local; /* TRUE for buffer-local mappings */ 3468 int abbr; /* TRUE for abbreviations */ 3469 { 3470 mapblock_T *mp, **mpp; 3471 int hash; 3472 int new_hash; 3473 3474 validate_maphash(); 3475 3476 for (hash = 0; hash < 256; ++hash) 3477 { 3478 if (abbr) 3479 { 3480 if (hash) /* there is only one abbrlist */ 3481 break; 3482 #ifdef FEAT_LOCALMAP 3483 if (local) 3484 mpp = &buf->b_first_abbr; 3485 else 3486 #endif 3487 mpp = &first_abbr; 3488 } 3489 else 3490 { 3491 #ifdef FEAT_LOCALMAP 3492 if (local) 3493 mpp = &buf->b_maphash[hash]; 3494 else 3495 #endif 3496 mpp = &maphash[hash]; 3497 } 3498 while (*mpp != NULL) 3499 { 3500 mp = *mpp; 3501 if (mp->m_mode & mode) 3502 { 3503 mp->m_mode &= ~mode; 3504 if (mp->m_mode == 0) /* entry can be deleted */ 3505 { 3506 map_free(mpp); 3507 continue; 3508 } 3509 /* 3510 * May need to put this entry into another hash list. 3511 */ 3512 new_hash = MAP_HASH(mp->m_mode, mp->m_keys[0]); 3513 if (!abbr && new_hash != hash) 3514 { 3515 *mpp = mp->m_next; 3516 #ifdef FEAT_LOCALMAP 3517 if (local) 3518 { 3519 mp->m_next = buf->b_maphash[new_hash]; 3520 buf->b_maphash[new_hash] = mp; 3521 } 3522 else 3523 #endif 3524 { 3525 mp->m_next = maphash[new_hash]; 3526 maphash[new_hash] = mp; 3527 } 3528 continue; /* continue with *mpp */ 3529 } 3530 } 3531 mpp = &(mp->m_next); 3532 } 3533 } 3534 } 3535 3536 static void 3537 showmap(mp, local) 3538 mapblock_T *mp; 3539 int local; /* TRUE for buffer-local map */ 3540 { 3541 int len = 1; 3542 3543 if (msg_didout || msg_silent != 0) 3544 msg_putchar('\n'); 3545 if ((mp->m_mode & (INSERT + CMDLINE)) == INSERT + CMDLINE) 3546 msg_putchar('!'); /* :map! */ 3547 else if (mp->m_mode & INSERT) 3548 msg_putchar('i'); /* :imap */ 3549 else if (mp->m_mode & LANGMAP) 3550 msg_putchar('l'); /* :lmap */ 3551 else if (mp->m_mode & CMDLINE) 3552 msg_putchar('c'); /* :cmap */ 3553 else if ((mp->m_mode & (NORMAL + VISUAL + OP_PENDING)) 3554 == NORMAL + VISUAL + OP_PENDING) 3555 msg_putchar(' '); /* :map */ 3556 else 3557 { 3558 len = 0; 3559 if (mp->m_mode & NORMAL) 3560 { 3561 msg_putchar('n'); /* :nmap */ 3562 ++len; 3563 } 3564 if (mp->m_mode & OP_PENDING) 3565 { 3566 msg_putchar('o'); /* :omap */ 3567 ++len; 3568 } 3569 if (mp->m_mode & VISUAL) 3570 { 3571 msg_putchar('v'); /* :vmap */ 3572 ++len; 3573 } 3574 } 3575 while (++len <= 3) 3576 msg_putchar(' '); 3577 3578 /* Get length of what we write */ 3579 len = msg_outtrans_special(mp->m_keys, TRUE); 3580 do 3581 { 3582 msg_putchar(' '); /* padd with blanks */ 3583 ++len; 3584 } while (len < 12); 3585 3586 if (mp->m_noremap == REMAP_NONE) 3587 msg_puts_attr((char_u *)"*", hl_attr(HLF_8)); 3588 else if (mp->m_noremap == REMAP_SCRIPT) 3589 msg_puts_attr((char_u *)"&", hl_attr(HLF_8)); 3590 else 3591 msg_putchar(' '); 3592 3593 if (local) 3594 msg_putchar('@'); 3595 else 3596 msg_putchar(' '); 3597 3598 /* Use FALSE below if we only want things like <Up> to show up as such on 3599 * the rhs, and not M-x etc, TRUE gets both -- webb 3600 */ 3601 if (*mp->m_str == NUL) 3602 msg_puts_attr((char_u *)"<Nop>", hl_attr(HLF_8)); 3603 else 3604 msg_outtrans_special(mp->m_str, FALSE); 3605 out_flush(); /* show one line at a time */ 3606 } 3607 3608 #if defined(FEAT_EVAL) || defined(PROTO) 3609 /* 3610 * Return TRUE if a map exists that has "str" in the rhs for mode "modechars". 3611 * Recognize termcap codes in "str". 3612 * Also checks mappings local to the current buffer. 3613 */ 3614 int 3615 map_to_exists(str, modechars) 3616 char_u *str; 3617 char_u *modechars; 3618 { 3619 int mode = 0; 3620 char_u *rhs; 3621 char_u *buf; 3622 int retval; 3623 3624 rhs = replace_termcodes(str, &buf, FALSE, TRUE); 3625 3626 if (vim_strchr(modechars, 'n') != NULL) 3627 mode |= NORMAL; 3628 if (vim_strchr(modechars, 'v') != NULL) 3629 mode |= VISUAL; 3630 if (vim_strchr(modechars, 'o') != NULL) 3631 mode |= OP_PENDING; 3632 if (vim_strchr(modechars, 'i') != NULL) 3633 mode |= INSERT; 3634 if (vim_strchr(modechars, 'l') != NULL) 3635 mode |= LANGMAP; 3636 if (vim_strchr(modechars, 'c') != NULL) 3637 mode |= CMDLINE; 3638 3639 retval = map_to_exists_mode(rhs, mode); 3640 vim_free(buf); 3641 3642 return retval; 3643 } 3644 #endif 3645 3646 /* 3647 * Return TRUE if a map exists that has "str" in the rhs for mode "mode". 3648 * Also checks mappings local to the current buffer. 3649 */ 3650 int 3651 map_to_exists_mode(rhs, mode) 3652 char_u *rhs; 3653 int mode; 3654 { 3655 mapblock_T *mp; 3656 int hash; 3657 # ifdef FEAT_LOCALMAP 3658 int expand_buffer = FALSE; 3659 3660 validate_maphash(); 3661 3662 /* Do it twice: once for global maps and once for local maps. */ 3663 for (;;) 3664 { 3665 # endif 3666 for (hash = 0; hash < 256; ++hash) 3667 { 3668 # ifdef FEAT_LOCALMAP 3669 if (expand_buffer) 3670 mp = curbuf->b_maphash[hash]; 3671 else 3672 # endif 3673 mp = maphash[hash]; 3674 for (; mp; mp = mp->m_next) 3675 { 3676 if ((mp->m_mode & mode) 3677 && strstr((char *)mp->m_str, (char *)rhs) != NULL) 3678 return TRUE; 3679 } 3680 } 3681 # ifdef FEAT_LOCALMAP 3682 if (expand_buffer) 3683 break; 3684 expand_buffer = TRUE; 3685 } 3686 # endif 3687 3688 return FALSE; 3689 } 3690 3691 #if defined(FEAT_CMDL_COMPL) || defined(PROTO) 3692 /* 3693 * Used below when expanding mapping/abbreviation names. 3694 */ 3695 static int expand_mapmodes = 0; 3696 static int expand_isabbrev = 0; 3697 #ifdef FEAT_LOCALMAP 3698 static int expand_buffer = FALSE; 3699 #endif 3700 3701 /* 3702 * Work out what to complete when doing command line completion of mapping 3703 * or abbreviation names. 3704 */ 3705 char_u * 3706 set_context_in_map_cmd(xp, cmd, arg, forceit, isabbrev, isunmap, cmdidx) 3707 expand_T *xp; 3708 char_u *cmd; 3709 char_u *arg; 3710 int forceit; /* TRUE if '!' given */ 3711 int isabbrev; /* TRUE if abbreviation */ 3712 int isunmap; /* TRUE if unmap/unabbrev command */ 3713 cmdidx_T cmdidx; 3714 { 3715 if (forceit && cmdidx != CMD_map && cmdidx != CMD_unmap) 3716 xp->xp_context = EXPAND_NOTHING; 3717 else 3718 { 3719 if (isunmap) 3720 expand_mapmodes = get_map_mode(&cmd, forceit || isabbrev); 3721 else 3722 { 3723 expand_mapmodes = INSERT + CMDLINE; 3724 if (!isabbrev) 3725 expand_mapmodes += VISUAL + NORMAL + OP_PENDING; 3726 } 3727 expand_isabbrev = isabbrev; 3728 xp->xp_context = EXPAND_MAPPINGS; 3729 #ifdef FEAT_LOCALMAP 3730 expand_buffer = FALSE; 3731 #endif 3732 for (;;) 3733 { 3734 #ifdef FEAT_LOCALMAP 3735 if (STRNCMP(arg, "<buffer>", 8) == 0) 3736 { 3737 expand_buffer = TRUE; 3738 arg = skipwhite(arg + 8); 3739 continue; 3740 } 3741 #endif 3742 if (STRNCMP(arg, "<unique>", 8) == 0) 3743 { 3744 arg = skipwhite(arg + 8); 3745 continue; 3746 } 3747 if (STRNCMP(arg, "<silent>", 8) == 0) 3748 { 3749 arg = skipwhite(arg + 8); 3750 continue; 3751 } 3752 if (STRNCMP(arg, "<script>", 8) == 0) 3753 { 3754 arg = skipwhite(arg + 8); 3755 continue; 3756 } 3757 break; 3758 } 3759 xp->xp_pattern = arg; 3760 } 3761 3762 return NULL; 3763 } 3764 3765 /* 3766 * Find all mapping/abbreviation names that match regexp 'prog'. 3767 * For command line expansion of ":[un]map" and ":[un]abbrev" in all modes. 3768 * Return OK if matches found, FAIL otherwise. 3769 */ 3770 int 3771 ExpandMappings(regmatch, num_file, file) 3772 regmatch_T *regmatch; 3773 int *num_file; 3774 char_u ***file; 3775 { 3776 mapblock_T *mp; 3777 int hash; 3778 int count; 3779 int round; 3780 char_u *p; 3781 int i; 3782 3783 validate_maphash(); 3784 3785 *num_file = 0; /* return values in case of FAIL */ 3786 *file = NULL; 3787 3788 /* 3789 * round == 1: Count the matches. 3790 * round == 2: Build the array to keep the matches. 3791 */ 3792 for (round = 1; round <= 2; ++round) 3793 { 3794 count = 0; 3795 3796 for (i = 0; i < 4; ++i) 3797 { 3798 if (i == 0) 3799 p = (char_u *)"<silent>"; 3800 else if (i == 1) 3801 p = (char_u *)"<unique>"; 3802 #ifdef FEAT_EVAL 3803 else if (i == 2) 3804 p = (char_u *)"<script>"; 3805 #endif 3806 #ifdef FEAT_LOCALMAP 3807 else if (i == 3 && !expand_buffer) 3808 p = (char_u *)"<buffer>"; 3809 #endif 3810 else 3811 continue; 3812 3813 if (vim_regexec(regmatch, p, (colnr_T)0)) 3814 { 3815 if (round == 1) 3816 ++count; 3817 else 3818 (*file)[count++] = vim_strsave(p); 3819 } 3820 } 3821 3822 for (hash = 0; hash < 256; ++hash) 3823 { 3824 if (expand_isabbrev) 3825 { 3826 if (hash) /* only one abbrev list */ 3827 break; /* for (hash) */ 3828 mp = first_abbr; 3829 } 3830 #ifdef FEAT_LOCALMAP 3831 else if (expand_buffer) 3832 mp = curbuf->b_maphash[hash]; 3833 #endif 3834 else 3835 mp = maphash[hash]; 3836 for (; mp; mp = mp->m_next) 3837 { 3838 if (mp->m_mode & expand_mapmodes) 3839 { 3840 p = translate_mapping(mp->m_keys, TRUE); 3841 if (p != NULL && vim_regexec(regmatch, p, (colnr_T)0)) 3842 { 3843 if (round == 1) 3844 ++count; 3845 else 3846 { 3847 (*file)[count++] = p; 3848 p = NULL; 3849 } 3850 } 3851 vim_free(p); 3852 } 3853 } /* for (mp) */ 3854 } /* for (hash) */ 3855 3856 if (count == 0) /* no match found */ 3857 break; /* for (round) */ 3858 3859 if (round == 1) 3860 { 3861 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *))); 3862 if (*file == NULL) 3863 return FAIL; 3864 } 3865 } /* for (round) */ 3866 3867 /* Sort the matches */ 3868 sort_strings(*file, count); 3869 3870 /* Remove multiple entries */ 3871 { 3872 char_u **ptr1 = *file; 3873 char_u **ptr2 = ptr1 + 1; 3874 char_u **ptr3 = ptr1 + count; 3875 3876 while (ptr2 < ptr3) 3877 { 3878 if (STRCMP(*ptr1, *ptr2)) 3879 *++ptr1 = *ptr2++; 3880 else 3881 { 3882 vim_free(*ptr2++); 3883 count--; 3884 } 3885 } 3886 } 3887 3888 *num_file = count; 3889 return (count == 0 ? FAIL : OK); 3890 } 3891 #endif /* FEAT_CMDL_COMPL */ 3892 3893 /* 3894 * Check for an abbreviation. 3895 * Cursor is at ptr[col]. When inserting, mincol is where insert started. 3896 * "c" is the character typed before check_abbr was called. It may have 3897 * ABBR_OFF added to avoid prepending a CTRL-V to it. 3898 * 3899 * Historic vi practice: The last character of an abbreviation must be an id 3900 * character ([a-zA-Z0-9_]). The characters in front of it must be all id 3901 * characters or all non-id characters. This allows for abbr. "#i" to 3902 * "#include". 3903 * 3904 * Vim addition: Allow for abbreviations that end in a non-keyword character. 3905 * Then there must be white space before the abbr. 3906 * 3907 * return TRUE if there is an abbreviation, FALSE if not 3908 */ 3909 int 3910 check_abbr(c, ptr, col, mincol) 3911 int c; 3912 char_u *ptr; 3913 int col; 3914 int mincol; 3915 { 3916 int len; 3917 int scol; /* starting column of the abbr. */ 3918 int j; 3919 #ifdef FEAT_MBYTE 3920 char_u tb[MB_MAXBYTES + 4]; 3921 #else 3922 char_u tb[4]; 3923 #endif 3924 mapblock_T *mp; 3925 #ifdef FEAT_LOCALMAP 3926 mapblock_T *mp2; 3927 #endif 3928 #ifdef FEAT_MBYTE 3929 int clen = 0; /* length in characters */ 3930 #endif 3931 int is_id = TRUE; 3932 int vim_abbr; 3933 3934 if (typebuf.tb_no_abbr_cnt) /* abbrev. are not recursive */ 3935 return FALSE; 3936 if (KeyNoremap) /* no remapping implies no abbreviation */ 3937 return FALSE; 3938 3939 /* 3940 * Check for word before the cursor: If it ends in a keyword char all 3941 * chars before it must be al keyword chars or non-keyword chars, but not 3942 * white space. If it ends in a non-keyword char we accept any characters 3943 * before it except white space. 3944 */ 3945 if (col == 0) /* cannot be an abbr. */ 3946 return FALSE; 3947 3948 #ifdef FEAT_MBYTE 3949 if (has_mbyte) 3950 { 3951 char_u *p; 3952 3953 p = mb_prevptr(ptr, ptr + col); 3954 if (!vim_iswordp(p)) 3955 vim_abbr = TRUE; /* Vim added abbr. */ 3956 else 3957 { 3958 vim_abbr = FALSE; /* vi compatible abbr. */ 3959 if (p > ptr) 3960 is_id = vim_iswordp(mb_prevptr(ptr, p)); 3961 } 3962 clen = 1; 3963 while (p > ptr + mincol) 3964 { 3965 p = mb_prevptr(ptr, p); 3966 if (vim_isspace(*p) || (!vim_abbr && is_id != vim_iswordp(p))) 3967 { 3968 p += (*mb_ptr2len_check)(p); 3969 break; 3970 } 3971 ++clen; 3972 } 3973 scol = (int)(p - ptr); 3974 } 3975 else 3976 #endif 3977 { 3978 if (!vim_iswordc(ptr[col - 1])) 3979 vim_abbr = TRUE; /* Vim added abbr. */ 3980 else 3981 { 3982 vim_abbr = FALSE; /* vi compatible abbr. */ 3983 if (col > 1) 3984 is_id = vim_iswordc(ptr[col - 2]); 3985 } 3986 for (scol = col - 1; scol > 0 && !vim_isspace(ptr[scol - 1]) 3987 && (vim_abbr || is_id == vim_iswordc(ptr[scol - 1])); --scol) 3988 ; 3989 } 3990 3991 if (scol < mincol) 3992 scol = mincol; 3993 if (scol < col) /* there is a word in front of the cursor */ 3994 { 3995 ptr += scol; 3996 len = col - scol; 3997 #ifdef FEAT_LOCALMAP 3998 mp = curbuf->b_first_abbr; 3999 mp2 = first_abbr; 4000 if (mp == NULL) 4001 { 4002 mp = mp2; 4003 mp2 = NULL; 4004 } 4005 #else 4006 mp = first_abbr; 4007 #endif 4008 for ( ; mp; 4009 #ifdef FEAT_LOCALMAP 4010 mp->m_next == NULL ? (mp = mp2, mp2 = NULL) : 4011 #endif 4012 (mp = mp->m_next)) 4013 { 4014 /* find entries with right mode and keys */ 4015 if ( (mp->m_mode & State) 4016 && mp->m_keylen == len 4017 && !STRNCMP(mp->m_keys, ptr, (size_t)len)) 4018 break; 4019 } 4020 if (mp != NULL) 4021 { 4022 /* 4023 * Found a match: 4024 * Insert the rest of the abbreviation in typebuf.tb_buf[]. 4025 * This goes from end to start. 4026 * 4027 * Characters 0x000 - 0x100: normal chars, may need CTRL-V, 4028 * except K_SPECIAL: Becomes K_SPECIAL KS_SPECIAL KE_FILLER 4029 * Characters where IS_SPECIAL() == TRUE: key codes, need 4030 * K_SPECIAL. Other characters (with ABBR_OFF): don't use CTRL-V. 4031 * 4032 * Character CTRL-] is treated specially - it completes the 4033 * abbreviation, but is not inserted into the input stream. 4034 */ 4035 j = 0; 4036 /* special key code, split up */ 4037 if (c != Ctrl_RSB) 4038 { 4039 if (IS_SPECIAL(c) || c == K_SPECIAL) 4040 { 4041 tb[j++] = K_SPECIAL; 4042 tb[j++] = K_SECOND(c); 4043 tb[j++] = K_THIRD(c); 4044 } 4045 else 4046 { 4047 if (c < ABBR_OFF && (c < ' ' || c > '~')) 4048 tb[j++] = Ctrl_V; /* special char needs CTRL-V */ 4049 #ifdef FEAT_MBYTE 4050 if (has_mbyte) 4051 { 4052 /* if ABBR_OFF has been added, remove it here */ 4053 if (c >= ABBR_OFF) 4054 c -= ABBR_OFF; 4055 j += (*mb_char2bytes)(c, tb + j); 4056 } 4057 else 4058 #endif 4059 tb[j++] = c; 4060 } 4061 tb[j] = NUL; 4062 /* insert the last typed char */ 4063 (void)ins_typebuf(tb, 1, 0, TRUE, mp->m_silent); 4064 } 4065 /* insert the to string */ 4066 (void)ins_typebuf(mp->m_str, mp->m_noremap, 0, TRUE, mp->m_silent); 4067 /* no abbrev. for these chars */ 4068 typebuf.tb_no_abbr_cnt += (int)STRLEN(mp->m_str) + j + 1; 4069 4070 tb[0] = Ctrl_H; 4071 tb[1] = NUL; 4072 #ifdef FEAT_MBYTE 4073 if (has_mbyte) 4074 len = clen; /* Delete characters instead of bytes */ 4075 #endif 4076 while (len-- > 0) /* delete the from string */ 4077 (void)ins_typebuf(tb, 1, 0, TRUE, mp->m_silent); 4078 return TRUE; 4079 } 4080 } 4081 return FALSE; 4082 } 4083 4084 /* 4085 * Write map commands for the current mappings to an .exrc file. 4086 * Return FAIL on error, OK otherwise. 4087 */ 4088 int 4089 makemap(fd, buf) 4090 FILE *fd; 4091 buf_T *buf; /* buffer for local mappings or NULL */ 4092 { 4093 mapblock_T *mp; 4094 char_u c1, c2; 4095 char_u *p; 4096 char *cmd; 4097 int abbr; 4098 int hash; 4099 int did_cpo = FALSE; 4100 int i; 4101 4102 validate_maphash(); 4103 4104 /* 4105 * Do the loop twice: Once for mappings, once for abbreviations. 4106 * Then loop over all map hash lists. 4107 */ 4108 for (abbr = 0; abbr < 2; ++abbr) 4109 for (hash = 0; hash < 256; ++hash) 4110 { 4111 if (abbr) 4112 { 4113 if (hash) /* there is only one abbr list */ 4114 break; 4115 #ifdef FEAT_LOCALMAP 4116 if (buf != NULL) 4117 mp = buf->b_first_abbr; 4118 else 4119 #endif 4120 mp = first_abbr; 4121 } 4122 else 4123 { 4124 #ifdef FEAT_LOCALMAP 4125 if (buf != NULL) 4126 mp = buf->b_maphash[hash]; 4127 else 4128 #endif 4129 mp = maphash[hash]; 4130 } 4131 4132 for ( ; mp; mp = mp->m_next) 4133 { 4134 /* skip script-local mappings */ 4135 if (mp->m_noremap == REMAP_SCRIPT) 4136 continue; 4137 4138 /* skip mappings that contain a <SNR> (script-local thing), 4139 * they probably don't work when loaded again */ 4140 for (p = mp->m_str; *p != NUL; ++p) 4141 if (p[0] == K_SPECIAL && p[1] == KS_EXTRA 4142 && p[2] == (int)KE_SNR) 4143 break; 4144 if (*p != NUL) 4145 continue; 4146 4147 c1 = NUL; 4148 c2 = NUL; 4149 if (abbr) 4150 cmd = "abbr"; 4151 else 4152 cmd = "map"; 4153 switch (mp->m_mode) 4154 { 4155 case NORMAL + VISUAL + OP_PENDING: 4156 break; 4157 case NORMAL: 4158 c1 = 'n'; 4159 break; 4160 case VISUAL: 4161 c1 = 'v'; 4162 break; 4163 case OP_PENDING: 4164 c1 = 'o'; 4165 break; 4166 case NORMAL + VISUAL: 4167 c1 = 'n'; 4168 c2 = 'v'; 4169 break; 4170 case VISUAL + OP_PENDING: 4171 c1 = 'v'; 4172 c2 = 'o'; 4173 break; 4174 case NORMAL + OP_PENDING: 4175 c1 = 'n'; 4176 c2 = 'o'; 4177 break; 4178 case CMDLINE + INSERT: 4179 if (!abbr) 4180 cmd = "map!"; 4181 break; 4182 case CMDLINE: 4183 c1 = 'c'; 4184 break; 4185 case INSERT: 4186 c1 = 'i'; 4187 break; 4188 case LANGMAP: 4189 c1 = 'l'; 4190 break; 4191 default: 4192 EMSG(_("E228: makemap: Illegal mode")); 4193 return FAIL; 4194 } 4195 do /* may do this twice if c2 is set */ 4196 { 4197 /* When outputting <> form, need to make sure that 'cpo' 4198 * is set to the Vim default. */ 4199 if (!did_cpo) 4200 { 4201 if (*mp->m_str == NUL) /* will use <Nop> */ 4202 did_cpo = TRUE; 4203 else 4204 for (i = 0; i < 2; ++i) 4205 for (p = (i ? mp->m_str : mp->m_keys); *p; ++p) 4206 if (*p == K_SPECIAL || *p == NL) 4207 did_cpo = TRUE; 4208 if (did_cpo) 4209 { 4210 if (fprintf(fd, "let s:cpo_save=&cpo") < 0 4211 || put_eol(fd) < 0 4212 || fprintf(fd, "set cpo&vim") < 0 4213 || put_eol(fd) < 0) 4214 return FAIL; 4215 } 4216 } 4217 if (c1 && putc(c1, fd) < 0) 4218 return FAIL; 4219 if (mp->m_noremap != REMAP_YES && fprintf(fd, "nore") < 0) 4220 return FAIL; 4221 if (fprintf(fd, cmd) < 0) 4222 return FAIL; 4223 if (buf != NULL && fputs(" <buffer>", fd) < 0) 4224 return FAIL; 4225 if (mp->m_silent && fputs(" <silent>", fd) < 0) 4226 return FAIL; 4227 4228 if ( putc(' ', fd) < 0 4229 || put_escstr(fd, mp->m_keys, 0) == FAIL 4230 || putc(' ', fd) < 0 4231 || put_escstr(fd, mp->m_str, 1) == FAIL 4232 || put_eol(fd) < 0) 4233 return FAIL; 4234 c1 = c2; 4235 c2 = NUL; 4236 } 4237 while (c1); 4238 } 4239 } 4240 4241 if (did_cpo) 4242 if (fprintf(fd, "let &cpo=s:cpo_save") < 0 4243 || put_eol(fd) < 0 4244 || fprintf(fd, "unlet s:cpo_save") < 0 4245 || put_eol(fd) < 0) 4246 return FAIL; 4247 return OK; 4248 } 4249 4250 /* 4251 * write escape string to file 4252 * "what": 0 for :map lhs, 1 for :map rhs, 2 for :set 4253 * 4254 * return FAIL for failure, OK otherwise 4255 */ 4256 int 4257 put_escstr(fd, strstart, what) 4258 FILE *fd; 4259 char_u *strstart; 4260 int what; 4261 { 4262 char_u *str = strstart; 4263 int c; 4264 int modifiers; 4265 4266 /* :map xx <Nop> */ 4267 if (*str == NUL && what == 1) 4268 { 4269 if (fprintf(fd, "<Nop>") < 0) 4270 return FAIL; 4271 return OK; 4272 } 4273 4274 for ( ; *str != NUL; ++str) 4275 { 4276 #ifdef FEAT_MBYTE 4277 char_u *p; 4278 4279 /* Check for a multi-byte character, which may contain escaped 4280 * K_SPECIAL and CSI bytes */ 4281 p = mb_unescape(&str); 4282 if (p != NULL) 4283 { 4284 while (*p != NUL) 4285 if (putc(*p++, fd) < 0) 4286 return FAIL; 4287 --str; 4288 continue; 4289 } 4290 #endif 4291 4292 c = *str; 4293 /* 4294 * Special key codes have to be translated to be able to make sense 4295 * when they are read back. 4296 */ 4297 if (c == K_SPECIAL && what != 2) 4298 { 4299 modifiers = 0x0; 4300 if (str[1] == KS_MODIFIER) 4301 { 4302 modifiers = str[2]; 4303 str += 3; 4304 c = *str; 4305 } 4306 if (c == K_SPECIAL) 4307 { 4308 c = TO_SPECIAL(str[1], str[2]); 4309 str += 2; 4310 } 4311 if (IS_SPECIAL(c) || modifiers) /* special key */ 4312 { 4313 if (fprintf(fd, (char *)get_special_key_name(c, modifiers)) < 0) 4314 return FAIL; 4315 continue; 4316 } 4317 } 4318 4319 /* 4320 * A '\n' in a map command should be written as <NL>. 4321 * A '\n' in a set command should be written as \^V^J. 4322 */ 4323 if (c == NL) 4324 { 4325 if (what == 2) 4326 { 4327 if (fprintf(fd, IF_EB("\\\026\n", "\\" CTRL_V_STR "\n")) < 0) 4328 return FAIL; 4329 } 4330 else 4331 { 4332 if (fprintf(fd, "<NL>") < 0) 4333 return FAIL; 4334 } 4335 continue; 4336 } 4337 4338 /* 4339 * Some characters have to be escaped with CTRL-V to 4340 * prevent them from misinterpreted in DoOneCmd(). 4341 * A space, Tab and '"' has to be escaped with a backslash to 4342 * prevent it to be misinterpreted in do_set(). 4343 * A space has to be escaped with a CTRL-V when it's at the start of a 4344 * ":map" rhs. 4345 * A '<' has to be escaped with a CTRL-V to prevent it being 4346 * interpreted as the start of a special key name. 4347 * A space in the lhs of a :map needs a CTRL-V. 4348 */ 4349 if (what == 2 && (vim_iswhite(c) || c == '"' || c == '\\')) 4350 { 4351 if (putc('\\', fd) < 0) 4352 return FAIL; 4353 } 4354 else if (c < ' ' || c > '~' || c == '|' 4355 || (what == 0 && c == ' ') 4356 || (what == 1 && str == strstart && c == ' ') 4357 || (what != 2 && c == '<')) 4358 { 4359 if (putc(Ctrl_V, fd) < 0) 4360 return FAIL; 4361 } 4362 if (putc(c, fd) < 0) 4363 return FAIL; 4364 } 4365 return OK; 4366 } 4367 4368 /* 4369 * Check all mappings for the presence of special key codes. 4370 * Used after ":set term=xxx". 4371 */ 4372 void 4373 check_map_keycodes() 4374 { 4375 mapblock_T *mp; 4376 char_u *p; 4377 int i; 4378 char_u buf[3]; 4379 char_u *save_name; 4380 int abbr; 4381 int hash; 4382 #ifdef FEAT_LOCALMAP 4383 buf_T *bp; 4384 #endif 4385 4386 validate_maphash(); 4387 save_name = sourcing_name; 4388 sourcing_name = (char_u *)"mappings"; /* avoids giving error messages */ 4389 4390 #ifdef FEAT_LOCALMAP 4391 /* This this once for each buffer, and then once for global 4392 * mappings/abbreviations with bp == NULL */ 4393 for (bp = firstbuf; ; bp = bp->b_next) 4394 { 4395 #endif 4396 /* 4397 * Do the loop twice: Once for mappings, once for abbreviations. 4398 * Then loop over all map hash lists. 4399 */ 4400 for (abbr = 0; abbr <= 1; ++abbr) 4401 for (hash = 0; hash < 256; ++hash) 4402 { 4403 if (abbr) 4404 { 4405 if (hash) /* there is only one abbr list */ 4406 break; 4407 #ifdef FEAT_LOCALMAP 4408 if (bp != NULL) 4409 mp = bp->b_first_abbr; 4410 else 4411 #endif 4412 mp = first_abbr; 4413 } 4414 else 4415 { 4416 #ifdef FEAT_LOCALMAP 4417 if (bp != NULL) 4418 mp = bp->b_maphash[hash]; 4419 else 4420 #endif 4421 mp = maphash[hash]; 4422 } 4423 for ( ; mp != NULL; mp = mp->m_next) 4424 { 4425 for (i = 0; i <= 1; ++i) /* do this twice */ 4426 { 4427 if (i == 0) 4428 p = mp->m_keys; /* once for the "from" part */ 4429 else 4430 p = mp->m_str; /* and once for the "to" part */ 4431 while (*p) 4432 { 4433 if (*p == K_SPECIAL) 4434 { 4435 ++p; 4436 if (*p < 128) /* for "normal" tcap entries */ 4437 { 4438 buf[0] = p[0]; 4439 buf[1] = p[1]; 4440 buf[2] = NUL; 4441 (void)add_termcap_entry(buf, FALSE); 4442 } 4443 ++p; 4444 } 4445 ++p; 4446 } 4447 } 4448 } 4449 } 4450 #ifdef FEAT_LOCALMAP 4451 if (bp == NULL) 4452 break; 4453 } 4454 #endif 4455 sourcing_name = save_name; 4456 } 4457 4458 #ifdef FEAT_EVAL 4459 /* 4460 * Check the string "keys" against the lhs of all mappings 4461 * Return pointer to rhs of mapping (mapblock->m_str) 4462 * NULL otherwise 4463 */ 4464 char_u * 4465 check_map(keys, mode, exact) 4466 char_u *keys; 4467 int mode; 4468 int exact; /* require exact match */ 4469 { 4470 int hash; 4471 int len, minlen; 4472 mapblock_T *mp; 4473 #ifdef FEAT_LOCALMAP 4474 int local; 4475 #endif 4476 4477 validate_maphash(); 4478 4479 len = (int)STRLEN(keys); 4480 #ifdef FEAT_LOCALMAP 4481 for (local = 1; local >= 0; --local) 4482 #endif 4483 /* loop over all hash lists */ 4484 for (hash = 0; hash < 256; ++hash) 4485 { 4486 #ifdef FEAT_LOCALMAP 4487 if (local) 4488 mp = curbuf->b_maphash[hash]; 4489 else 4490 #endif 4491 mp = maphash[hash]; 4492 for ( ; mp != NULL; mp = mp->m_next) 4493 { 4494 /* skip entries with wrong mode, wrong length and not matching 4495 * ones */ 4496 if (mp->m_keylen < len) 4497 minlen = mp->m_keylen; 4498 else 4499 minlen = len; 4500 if ((mp->m_mode & mode) 4501 && (!exact || mp->m_keylen == len) 4502 && STRNCMP(mp->m_keys, keys, minlen) == 0) 4503 return mp->m_str; 4504 } 4505 } 4506 4507 return NULL; 4508 } 4509 #endif 4510 4511 /* 4512 * Default mappings for some often used keys. 4513 */ 4514 static struct initmap 4515 { 4516 char_u *arg; 4517 int mode; 4518 } initmappings[] = 4519 { 4520 #if defined(MSDOS) || defined(MSWIN) || defined(OS2) 4521 /* Use the Windows (CUA) keybindings. */ 4522 # ifdef FEAT_GUI 4523 {(char_u *)"<C-PageUp> H", NORMAL+VISUAL}, 4524 {(char_u *)"<C-PageUp> <C-O>H",INSERT}, 4525 {(char_u *)"<C-PageDown> L$", NORMAL+VISUAL}, 4526 {(char_u *)"<C-PageDown> <C-O>L<C-O>$", INSERT}, 4527 4528 /* paste, copy and cut */ 4529 {(char_u *)"<S-Insert> \"*P", NORMAL}, 4530 {(char_u *)"<S-Insert> \"-d\"*P", VISUAL}, 4531 {(char_u *)"<S-Insert> <C-R><C-O>*", INSERT+CMDLINE}, 4532 {(char_u *)"<C-Insert> \"*y", VISUAL}, 4533 {(char_u *)"<S-Del> \"*d", VISUAL}, 4534 {(char_u *)"<C-Del> \"*d", VISUAL}, 4535 {(char_u *)"<C-X> \"*d", VISUAL}, 4536 /* Missing: CTRL-C (cancel) and CTRL-V (block selection) */ 4537 # else 4538 {(char_u *)"\316\204 H", NORMAL+VISUAL}, /* CTRL-PageUp is "H" */ 4539 {(char_u *)"\316\204 \017H",INSERT}, /* CTRL-PageUp is "^OH"*/ 4540 {(char_u *)"\316v L$", NORMAL+VISUAL}, /* CTRL-PageDown is "L$" */ 4541 {(char_u *)"\316v \017L\017$", INSERT}, /* CTRL-PageDown ="^OL^O$"*/ 4542 {(char_u *)"\316w <C-Home>", NORMAL+VISUAL}, 4543 {(char_u *)"\316w <C-Home>", INSERT+CMDLINE}, 4544 {(char_u *)"\316u <C-End>", NORMAL+VISUAL}, 4545 {(char_u *)"\316u <C-End>", INSERT+CMDLINE}, 4546 4547 /* paste, copy and cut */ 4548 # ifdef FEAT_CLIPBOARD 4549 # ifdef DJGPP 4550 {(char_u *)"\316\122 \"*P", NORMAL}, /* SHIFT-Insert is "*P */ 4551 {(char_u *)"\316\122 \"-d\"*P", VISUAL}, /* SHIFT-Insert is "-d"*P */ 4552 {(char_u *)"\316\122 \022\017*", INSERT}, /* SHIFT-Insert is ^R^O* */ 4553 {(char_u *)"\316\222 \"*y", VISUAL}, /* CTRL-Insert is "*y */ 4554 # if 0 /* Shift-Del produces the same code as Del */ 4555 {(char_u *)"\316\123 \"*d", VISUAL}, /* SHIFT-Del is "*d */ 4556 # endif 4557 {(char_u *)"\316\223 \"*d", VISUAL}, /* CTRL-Del is "*d */ 4558 {(char_u *)"\030 \"-d", VISUAL}, /* CTRL-X is "-d */ 4559 # else 4560 {(char_u *)"\316\324 \"*P", NORMAL}, /* SHIFT-Insert is "*P */ 4561 {(char_u *)"\316\324 \"-d\"*P", VISUAL}, /* SHIFT-Insert is "-d"*P */ 4562 {(char_u *)"\316\324 \022\017*", INSERT}, /* SHIFT-Insert is ^R^O* */ 4563 {(char_u *)"\316\325 \"*y", VISUAL}, /* CTRL-Insert is "*y */ 4564 {(char_u *)"\316\327 \"*d", VISUAL}, /* SHIFT-Del is "*d */ 4565 {(char_u *)"\316\330 \"*d", VISUAL}, /* CTRL-Del is "*d */ 4566 {(char_u *)"\030 \"-d", VISUAL}, /* CTRL-X is "-d */ 4567 # endif 4568 # else 4569 {(char_u *)"\316\324 P", NORMAL}, /* SHIFT-Insert is P */ 4570 {(char_u *)"\316\324 \"-dP", VISUAL}, /* SHIFT-Insert is "-dP */ 4571 {(char_u *)"\316\324 \022\017\"", INSERT}, /* SHIFT-Insert is ^R^O" */ 4572 {(char_u *)"\316\325 y", VISUAL}, /* CTRL-Insert is y */ 4573 {(char_u *)"\316\327 d", VISUAL}, /* SHIFT-Del is d */ 4574 {(char_u *)"\316\330 d", VISUAL}, /* CTRL-Del is d */ 4575 # endif 4576 # endif 4577 #endif 4578 4579 #if defined(MACOS) 4580 /* Use the Standard MacOS binding. */ 4581 /* paste, copy and cut */ 4582 {(char_u *)"<D-v> \"*P", NORMAL}, 4583 {(char_u *)"<D-v> \"-d\"*P", VISUAL}, 4584 {(char_u *)"<D-v> <C-R>*", INSERT+CMDLINE}, 4585 {(char_u *)"<D-c> \"*y", VISUAL}, 4586 {(char_u *)"<D-x> \"*d", VISUAL}, 4587 {(char_u *)"<Backspace> \"-d", VISUAL}, 4588 #endif 4589 4590 /* Map extra keys to their normal equivalents. */ 4591 {(char_u *)"<xF1> <F1>", NORMAL+VISUAL+OP_PENDING}, 4592 {(char_u *)"<xF1> <F1>", INSERT+CMDLINE}, 4593 {(char_u *)"<xF2> <F2>", NORMAL+VISUAL+OP_PENDING}, 4594 {(char_u *)"<xF2> <F2>", INSERT+CMDLINE}, 4595 {(char_u *)"<xF3> <F3>", NORMAL+VISUAL+OP_PENDING}, 4596 {(char_u *)"<xF3> <F3>", INSERT+CMDLINE}, 4597 {(char_u *)"<xF4> <F4>", NORMAL+VISUAL+OP_PENDING}, 4598 {(char_u *)"<xF4> <F4>", INSERT+CMDLINE}, 4599 {(char_u *)"<S-xF1> <S-F1>", NORMAL+VISUAL+OP_PENDING}, 4600 {(char_u *)"<S-xF1> <S-F1>", INSERT+CMDLINE}, 4601 {(char_u *)"<S-xF2> <S-F2>", NORMAL+VISUAL+OP_PENDING}, 4602 {(char_u *)"<S-xF2> <S-F2>", INSERT+CMDLINE}, 4603 {(char_u *)"<S-xF3> <S-F3>", NORMAL+VISUAL+OP_PENDING}, 4604 {(char_u *)"<S-xF3> <S-F3>", INSERT+CMDLINE}, 4605 {(char_u *)"<S-xF4> <S-F4>", NORMAL+VISUAL+OP_PENDING}, 4606 {(char_u *)"<S-xF4> <S-F4>", INSERT+CMDLINE}, 4607 {(char_u *)"<xEND> <END>", NORMAL+VISUAL+OP_PENDING}, 4608 {(char_u *)"<xEND> <END>", INSERT+CMDLINE}, 4609 {(char_u *)"<xHOME> <HOME>", NORMAL+VISUAL+OP_PENDING}, 4610 {(char_u *)"<xHOME> <HOME>", INSERT+CMDLINE}, 4611 }; 4612 4613 /* 4614 * Set up default mappings. 4615 */ 4616 void 4617 init_mappings() 4618 { 4619 int i; 4620 4621 for (i = 0; i < sizeof(initmappings) / sizeof(struct initmap); ++i) 4622 add_map(initmappings[i].arg, initmappings[i].mode); 4623 } 4624 4625 /* 4626 * Add a mapping "map" for mode "mode". 4627 * Need to put string in allocated memory, because do_map() will modify it. 4628 */ 4629 void 4630 add_map(map, mode) 4631 char_u *map; 4632 int mode; 4633 { 4634 char_u *s; 4635 char_u *cpo_save = p_cpo; 4636 4637 p_cpo = (char_u *)""; /* Allow <> notation */ 4638 s = vim_strsave(map); 4639 if (s != NULL) 4640 { 4641 (void)do_map(0, s, mode, FALSE); 4642 vim_free(s); 4643 } 4644 p_cpo = cpo_save; 4645 } 4646