chared.c revision 1.32
1 /* $NetBSD: chared.c,v 1.32 2011/07/29 15:16:33 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Christos Zoulas of Cornell University. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include "config.h" 36 #if !defined(lint) && !defined(SCCSID) 37 #if 0 38 static char sccsid[] = "@(#)chared.c 8.1 (Berkeley) 6/4/93"; 39 #else 40 __RCSID("$NetBSD: chared.c,v 1.32 2011/07/29 15:16:33 christos Exp $"); 41 #endif 42 #endif /* not lint && not SCCSID */ 43 44 /* 45 * chared.c: Character editor utilities 46 */ 47 #include <stdlib.h> 48 #include "el.h" 49 50 private void ch__clearmacro (EditLine *); 51 52 /* value to leave unused in line buffer */ 53 #define EL_LEAVE 2 54 55 /* cv_undo(): 56 * Handle state for the vi undo command 57 */ 58 protected void 59 cv_undo(EditLine *el) 60 { 61 c_undo_t *vu = &el->el_chared.c_undo; 62 c_redo_t *r = &el->el_chared.c_redo; 63 size_t size; 64 65 /* Save entire line for undo */ 66 size = el->el_line.lastchar - el->el_line.buffer; 67 vu->len = size; 68 vu->cursor = (int)(el->el_line.cursor - el->el_line.buffer); 69 (void)memcpy(vu->buf, el->el_line.buffer, size * sizeof(*vu->buf)); 70 71 /* save command info for redo */ 72 r->count = el->el_state.doingarg ? el->el_state.argument : 0; 73 r->action = el->el_chared.c_vcmd.action; 74 r->pos = r->buf; 75 r->cmd = el->el_state.thiscmd; 76 r->ch = el->el_state.thisch; 77 } 78 79 /* cv_yank(): 80 * Save yank/delete data for paste 81 */ 82 protected void 83 cv_yank(EditLine *el, const Char *ptr, int size) 84 { 85 c_kill_t *k = &el->el_chared.c_kill; 86 87 (void)memcpy(k->buf, ptr, size * sizeof(*k->buf)); 88 k->last = k->buf + size; 89 } 90 91 92 /* c_insert(): 93 * Insert num characters 94 */ 95 protected void 96 c_insert(EditLine *el, int num) 97 { 98 Char *cp; 99 100 if (el->el_line.lastchar + num >= el->el_line.limit) { 101 if (!ch_enlargebufs(el, (size_t)num)) 102 return; /* can't go past end of buffer */ 103 } 104 105 if (el->el_line.cursor < el->el_line.lastchar) { 106 /* if I must move chars */ 107 for (cp = el->el_line.lastchar; cp >= el->el_line.cursor; cp--) 108 cp[num] = *cp; 109 } 110 el->el_line.lastchar += num; 111 } 112 113 114 /* c_delafter(): 115 * Delete num characters after the cursor 116 */ 117 protected void 118 c_delafter(EditLine *el, int num) 119 { 120 121 if (el->el_line.cursor + num > el->el_line.lastchar) 122 num = (int)(el->el_line.lastchar - el->el_line.cursor); 123 124 if (el->el_map.current != el->el_map.emacs) { 125 cv_undo(el); 126 cv_yank(el, el->el_line.cursor, num); 127 } 128 129 if (num > 0) { 130 Char *cp; 131 132 for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++) 133 *cp = cp[num]; 134 135 el->el_line.lastchar -= num; 136 } 137 } 138 139 140 /* c_delafter1(): 141 * Delete the character after the cursor, do not yank 142 */ 143 protected void 144 c_delafter1(EditLine *el) 145 { 146 Char *cp; 147 148 for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++) 149 *cp = cp[1]; 150 151 el->el_line.lastchar--; 152 } 153 154 155 /* c_delbefore(): 156 * Delete num characters before the cursor 157 */ 158 protected void 159 c_delbefore(EditLine *el, int num) 160 { 161 162 if (el->el_line.cursor - num < el->el_line.buffer) 163 num = (int)(el->el_line.cursor - el->el_line.buffer); 164 165 if (el->el_map.current != el->el_map.emacs) { 166 cv_undo(el); 167 cv_yank(el, el->el_line.cursor - num, num); 168 } 169 170 if (num > 0) { 171 Char *cp; 172 173 for (cp = el->el_line.cursor - num; 174 cp <= el->el_line.lastchar; 175 cp++) 176 *cp = cp[num]; 177 178 el->el_line.lastchar -= num; 179 } 180 } 181 182 183 /* c_delbefore1(): 184 * Delete the character before the cursor, do not yank 185 */ 186 protected void 187 c_delbefore1(EditLine *el) 188 { 189 Char *cp; 190 191 for (cp = el->el_line.cursor - 1; cp <= el->el_line.lastchar; cp++) 192 *cp = cp[1]; 193 194 el->el_line.lastchar--; 195 } 196 197 198 /* ce__isword(): 199 * Return if p is part of a word according to emacs 200 */ 201 protected int 202 ce__isword(Int p) 203 { 204 return Isalnum(p || Strchr(STR("*?_-.[]~="), p) != NULL); 205 } 206 207 208 /* cv__isword(): 209 * Return if p is part of a word according to vi 210 */ 211 protected int 212 cv__isword(Int p) 213 { 214 if (Isalnum(p) || p == '_') 215 return 1; 216 if (Isgraph(p)) 217 return 2; 218 return 0; 219 } 220 221 222 /* cv__isWord(): 223 * Return if p is part of a big word according to vi 224 */ 225 protected int 226 cv__isWord(Int p) 227 { 228 return !Isspace(p); 229 } 230 231 232 /* c__prev_word(): 233 * Find the previous word 234 */ 235 protected Char * 236 c__prev_word(Char *p, Char *low, int n, int (*wtest)(Int)) 237 { 238 p--; 239 240 while (n--) { 241 while ((p >= low) && !(*wtest)(*p)) 242 p--; 243 while ((p >= low) && (*wtest)(*p)) 244 p--; 245 } 246 247 /* cp now points to one character before the word */ 248 p++; 249 if (p < low) 250 p = low; 251 /* cp now points where we want it */ 252 return p; 253 } 254 255 256 /* c__next_word(): 257 * Find the next word 258 */ 259 protected Char * 260 c__next_word(Char *p, Char *high, int n, int (*wtest)(Int)) 261 { 262 while (n--) { 263 while ((p < high) && !(*wtest)(*p)) 264 p++; 265 while ((p < high) && (*wtest)(*p)) 266 p++; 267 } 268 if (p > high) 269 p = high; 270 /* p now points where we want it */ 271 return p; 272 } 273 274 /* cv_next_word(): 275 * Find the next word vi style 276 */ 277 protected Char * 278 cv_next_word(EditLine *el, Char *p, Char *high, int n, int (*wtest)(Int)) 279 { 280 int test; 281 282 while (n--) { 283 test = (*wtest)(*p); 284 while ((p < high) && (*wtest)(*p) == test) 285 p++; 286 /* 287 * vi historically deletes with cw only the word preserving the 288 * trailing whitespace! This is not what 'w' does.. 289 */ 290 if (n || el->el_chared.c_vcmd.action != (DELETE|INSERT)) 291 while ((p < high) && Isspace(*p)) 292 p++; 293 } 294 295 /* p now points where we want it */ 296 if (p > high) 297 return high; 298 else 299 return p; 300 } 301 302 303 /* cv_prev_word(): 304 * Find the previous word vi style 305 */ 306 protected Char * 307 cv_prev_word(Char *p, Char *low, int n, int (*wtest)(Int)) 308 { 309 int test; 310 311 p--; 312 while (n--) { 313 while ((p > low) && Isspace(*p)) 314 p--; 315 test = (*wtest)(*p); 316 while ((p >= low) && (*wtest)(*p) == test) 317 p--; 318 } 319 p++; 320 321 /* p now points where we want it */ 322 if (p < low) 323 return low; 324 else 325 return p; 326 } 327 328 329 #ifdef notdef 330 /* c__number(): 331 * Ignore character p points to, return number appearing after that. 332 * A '$' by itself means a big number; "$-" is for negative; '^' means 1. 333 * Return p pointing to last char used. 334 */ 335 protected Char * 336 c__number( 337 Char *p, /* character position */ 338 int *num, /* Return value */ 339 int dval) /* dval is the number to subtract from like $-3 */ 340 { 341 int i; 342 int sign = 1; 343 344 if (*++p == '^') { 345 *num = 1; 346 return p; 347 } 348 if (*p == '$') { 349 if (*++p != '-') { 350 *num = 0x7fffffff; /* Handle $ */ 351 return --p; 352 } 353 sign = -1; /* Handle $- */ 354 ++p; 355 } 356 /* XXX: this assumes ASCII compatible digits */ 357 for (i = 0; Isdigit(*p); i = 10 * i + *p++ - '0') 358 continue; 359 *num = (sign < 0 ? dval - i : i); 360 return --p; 361 } 362 #endif 363 364 /* cv_delfini(): 365 * Finish vi delete action 366 */ 367 protected void 368 cv_delfini(EditLine *el) 369 { 370 int size; 371 int action = el->el_chared.c_vcmd.action; 372 373 if (action & INSERT) 374 el->el_map.current = el->el_map.key; 375 376 if (el->el_chared.c_vcmd.pos == 0) 377 /* sanity */ 378 return; 379 380 size = (int)(el->el_line.cursor - el->el_chared.c_vcmd.pos); 381 if (size == 0) 382 size = 1; 383 el->el_line.cursor = el->el_chared.c_vcmd.pos; 384 if (action & YANK) { 385 if (size > 0) 386 cv_yank(el, el->el_line.cursor, size); 387 else 388 cv_yank(el, el->el_line.cursor + size, -size); 389 } else { 390 if (size > 0) { 391 c_delafter(el, size); 392 re_refresh_cursor(el); 393 } else { 394 c_delbefore(el, -size); 395 el->el_line.cursor += size; 396 } 397 } 398 el->el_chared.c_vcmd.action = NOP; 399 } 400 401 402 #ifdef notdef 403 /* ce__endword(): 404 * Go to the end of this word according to emacs 405 */ 406 protected Char * 407 ce__endword(Char *p, Char *high, int n) 408 { 409 p++; 410 411 while (n--) { 412 while ((p < high) && Isspace(*p)) 413 p++; 414 while ((p < high) && !Isspace(*p)) 415 p++; 416 } 417 418 p--; 419 return p; 420 } 421 #endif 422 423 424 /* cv__endword(): 425 * Go to the end of this word according to vi 426 */ 427 protected Char * 428 cv__endword(Char *p, Char *high, int n, int (*wtest)(Int)) 429 { 430 int test; 431 432 p++; 433 434 while (n--) { 435 while ((p < high) && Isspace(*p)) 436 p++; 437 438 test = (*wtest)(*p); 439 while ((p < high) && (*wtest)(*p) == test) 440 p++; 441 } 442 p--; 443 return p; 444 } 445 446 /* ch_init(): 447 * Initialize the character editor 448 */ 449 protected int 450 ch_init(EditLine *el) 451 { 452 c_macro_t *ma = &el->el_chared.c_macro; 453 454 el->el_line.buffer = el_malloc(EL_BUFSIZ * 455 sizeof(*el->el_line.buffer)); 456 if (el->el_line.buffer == NULL) 457 return -1; 458 459 (void) memset(el->el_line.buffer, 0, EL_BUFSIZ * 460 sizeof(*el->el_line.buffer)); 461 el->el_line.cursor = el->el_line.buffer; 462 el->el_line.lastchar = el->el_line.buffer; 463 el->el_line.limit = &el->el_line.buffer[EL_BUFSIZ - EL_LEAVE]; 464 465 el->el_chared.c_undo.buf = el_malloc(EL_BUFSIZ * 466 sizeof(*el->el_chared.c_undo.buf)); 467 if (el->el_chared.c_undo.buf == NULL) 468 return -1; 469 (void) memset(el->el_chared.c_undo.buf, 0, EL_BUFSIZ * 470 sizeof(*el->el_chared.c_undo.buf)); 471 el->el_chared.c_undo.len = -1; 472 el->el_chared.c_undo.cursor = 0; 473 el->el_chared.c_redo.buf = el_malloc(EL_BUFSIZ * 474 sizeof(*el->el_chared.c_redo.buf)); 475 if (el->el_chared.c_redo.buf == NULL) 476 return -1; 477 el->el_chared.c_redo.pos = el->el_chared.c_redo.buf; 478 el->el_chared.c_redo.lim = el->el_chared.c_redo.buf + EL_BUFSIZ; 479 el->el_chared.c_redo.cmd = ED_UNASSIGNED; 480 481 el->el_chared.c_vcmd.action = NOP; 482 el->el_chared.c_vcmd.pos = el->el_line.buffer; 483 484 el->el_chared.c_kill.buf = el_malloc(EL_BUFSIZ * 485 sizeof(*el->el_chared.c_kill.buf)); 486 if (el->el_chared.c_kill.buf == NULL) 487 return -1; 488 (void) memset(el->el_chared.c_kill.buf, 0, EL_BUFSIZ * 489 sizeof(*el->el_chared.c_kill.buf)); 490 el->el_chared.c_kill.mark = el->el_line.buffer; 491 el->el_chared.c_kill.last = el->el_chared.c_kill.buf; 492 el->el_chared.c_resizefun = NULL; 493 el->el_chared.c_resizearg = NULL; 494 495 el->el_map.current = el->el_map.key; 496 497 el->el_state.inputmode = MODE_INSERT; /* XXX: save a default */ 498 el->el_state.doingarg = 0; 499 el->el_state.metanext = 0; 500 el->el_state.argument = 1; 501 el->el_state.lastcmd = ED_UNASSIGNED; 502 503 ma->level = -1; 504 ma->offset = 0; 505 ma->macro = el_malloc(EL_MAXMACRO * sizeof(*ma->macro)); 506 if (ma->macro == NULL) 507 return -1; 508 return 0; 509 } 510 511 /* ch_reset(): 512 * Reset the character editor 513 */ 514 protected void 515 ch_reset(EditLine *el, int mclear) 516 { 517 el->el_line.cursor = el->el_line.buffer; 518 el->el_line.lastchar = el->el_line.buffer; 519 520 el->el_chared.c_undo.len = -1; 521 el->el_chared.c_undo.cursor = 0; 522 523 el->el_chared.c_vcmd.action = NOP; 524 el->el_chared.c_vcmd.pos = el->el_line.buffer; 525 526 el->el_chared.c_kill.mark = el->el_line.buffer; 527 528 el->el_map.current = el->el_map.key; 529 530 el->el_state.inputmode = MODE_INSERT; /* XXX: save a default */ 531 el->el_state.doingarg = 0; 532 el->el_state.metanext = 0; 533 el->el_state.argument = 1; 534 el->el_state.lastcmd = ED_UNASSIGNED; 535 536 el->el_history.eventno = 0; 537 538 if (mclear) 539 ch__clearmacro(el); 540 } 541 542 private void 543 ch__clearmacro(EditLine *el) 544 { 545 c_macro_t *ma = &el->el_chared.c_macro; 546 while (ma->level >= 0) 547 el_free(ma->macro[ma->level--]); 548 } 549 550 /* ch_enlargebufs(): 551 * Enlarge line buffer to be able to hold twice as much characters. 552 * Returns 1 if successful, 0 if not. 553 */ 554 protected int 555 ch_enlargebufs(EditLine *el, size_t addlen) 556 { 557 size_t sz, newsz; 558 Char *newbuffer, *oldbuf, *oldkbuf; 559 560 sz = el->el_line.limit - el->el_line.buffer + EL_LEAVE; 561 newsz = sz * 2; 562 /* 563 * If newly required length is longer than current buffer, we need 564 * to make the buffer big enough to hold both old and new stuff. 565 */ 566 if (addlen > sz) { 567 while(newsz - sz < addlen) 568 newsz *= 2; 569 } 570 571 /* 572 * Reallocate line buffer. 573 */ 574 newbuffer = el_realloc(el->el_line.buffer, newsz * sizeof(*newbuffer)); 575 if (!newbuffer) 576 return 0; 577 578 /* zero the newly added memory, leave old data in */ 579 (void) memset(&newbuffer[sz], 0, (newsz - sz) * sizeof(*newbuffer)); 580 581 oldbuf = el->el_line.buffer; 582 583 el->el_line.buffer = newbuffer; 584 el->el_line.cursor = newbuffer + (el->el_line.cursor - oldbuf); 585 el->el_line.lastchar = newbuffer + (el->el_line.lastchar - oldbuf); 586 /* don't set new size until all buffers are enlarged */ 587 el->el_line.limit = &newbuffer[sz - EL_LEAVE]; 588 589 /* 590 * Reallocate kill buffer. 591 */ 592 newbuffer = el_realloc(el->el_chared.c_kill.buf, newsz * 593 sizeof(*newbuffer)); 594 if (!newbuffer) 595 return 0; 596 597 /* zero the newly added memory, leave old data in */ 598 (void) memset(&newbuffer[sz], 0, (newsz - sz) * sizeof(*newbuffer)); 599 600 oldkbuf = el->el_chared.c_kill.buf; 601 602 el->el_chared.c_kill.buf = newbuffer; 603 el->el_chared.c_kill.last = newbuffer + 604 (el->el_chared.c_kill.last - oldkbuf); 605 el->el_chared.c_kill.mark = el->el_line.buffer + 606 (el->el_chared.c_kill.mark - oldbuf); 607 608 /* 609 * Reallocate undo buffer. 610 */ 611 newbuffer = el_realloc(el->el_chared.c_undo.buf, 612 newsz * sizeof(*newbuffer)); 613 if (!newbuffer) 614 return 0; 615 616 /* zero the newly added memory, leave old data in */ 617 (void) memset(&newbuffer[sz], 0, (newsz - sz) * sizeof(*newbuffer)); 618 el->el_chared.c_undo.buf = newbuffer; 619 620 newbuffer = el_realloc(el->el_chared.c_redo.buf, 621 newsz * sizeof(*newbuffer)); 622 if (!newbuffer) 623 return 0; 624 el->el_chared.c_redo.pos = newbuffer + 625 (el->el_chared.c_redo.pos - el->el_chared.c_redo.buf); 626 el->el_chared.c_redo.lim = newbuffer + 627 (el->el_chared.c_redo.lim - el->el_chared.c_redo.buf); 628 el->el_chared.c_redo.buf = newbuffer; 629 630 if (!hist_enlargebuf(el, sz, newsz)) 631 return 0; 632 633 /* Safe to set enlarged buffer size */ 634 el->el_line.limit = &el->el_line.buffer[newsz - EL_LEAVE]; 635 if (el->el_chared.c_resizefun) 636 (*el->el_chared.c_resizefun)(el, el->el_chared.c_resizearg); 637 return 1; 638 } 639 640 /* ch_end(): 641 * Free the data structures used by the editor 642 */ 643 protected void 644 ch_end(EditLine *el) 645 { 646 el_free(el->el_line.buffer); 647 el->el_line.buffer = NULL; 648 el->el_line.limit = NULL; 649 el_free(el->el_chared.c_undo.buf); 650 el->el_chared.c_undo.buf = NULL; 651 el_free(el->el_chared.c_redo.buf); 652 el->el_chared.c_redo.buf = NULL; 653 el->el_chared.c_redo.pos = NULL; 654 el->el_chared.c_redo.lim = NULL; 655 el->el_chared.c_redo.cmd = ED_UNASSIGNED; 656 el_free(el->el_chared.c_kill.buf); 657 el->el_chared.c_kill.buf = NULL; 658 ch_reset(el, 1); 659 el_free(el->el_chared.c_macro.macro); 660 el->el_chared.c_macro.macro = NULL; 661 } 662 663 664 /* el_insertstr(): 665 * Insert string at cursorI 666 */ 667 public int 668 FUN(el,insertstr)(EditLine *el, const Char *s) 669 { 670 size_t len; 671 672 if ((len = Strlen(s)) == 0) 673 return -1; 674 if (el->el_line.lastchar + len >= el->el_line.limit) { 675 if (!ch_enlargebufs(el, len)) 676 return -1; 677 } 678 679 c_insert(el, (int)len); 680 while (*s) 681 *el->el_line.cursor++ = *s++; 682 return 0; 683 } 684 685 686 /* el_deletestr(): 687 * Delete num characters before the cursor 688 */ 689 public void 690 el_deletestr(EditLine *el, int n) 691 { 692 if (n <= 0) 693 return; 694 695 if (el->el_line.cursor < &el->el_line.buffer[n]) 696 return; 697 698 c_delbefore(el, n); /* delete before dot */ 699 el->el_line.cursor -= n; 700 if (el->el_line.cursor < el->el_line.buffer) 701 el->el_line.cursor = el->el_line.buffer; 702 } 703 704 /* c_gets(): 705 * Get a string 706 */ 707 protected int 708 c_gets(EditLine *el, Char *buf, const Char *prompt) 709 { 710 Char ch; 711 ssize_t len; 712 Char *cp = el->el_line.buffer; 713 714 if (prompt) { 715 len = Strlen(prompt); 716 (void)memcpy(cp, prompt, len * sizeof(*cp)); 717 cp += len; 718 } 719 len = 0; 720 721 for (;;) { 722 el->el_line.cursor = cp; 723 *cp = ' '; 724 el->el_line.lastchar = cp + 1; 725 re_refresh(el); 726 727 if (FUN(el,getc)(el, &ch) != 1) { 728 ed_end_of_file(el, 0); 729 len = -1; 730 break; 731 } 732 733 switch (ch) { 734 735 case 0010: /* Delete and backspace */ 736 case 0177: 737 if (len == 0) { 738 len = -1; 739 break; 740 } 741 cp--; 742 continue; 743 744 case 0033: /* ESC */ 745 case '\r': /* Newline */ 746 case '\n': 747 buf[len] = ch; 748 break; 749 750 default: 751 if (len >= EL_BUFSIZ - 16) 752 terminal_beep(el); 753 else { 754 buf[len++] = ch; 755 *cp++ = ch; 756 } 757 continue; 758 } 759 break; 760 } 761 762 el->el_line.buffer[0] = '\0'; 763 el->el_line.lastchar = el->el_line.buffer; 764 el->el_line.cursor = el->el_line.buffer; 765 return (int)len; 766 } 767 768 769 /* c_hpos(): 770 * Return the current horizontal position of the cursor 771 */ 772 protected int 773 c_hpos(EditLine *el) 774 { 775 Char *ptr; 776 777 /* 778 * Find how many characters till the beginning of this line. 779 */ 780 if (el->el_line.cursor == el->el_line.buffer) 781 return 0; 782 else { 783 for (ptr = el->el_line.cursor - 1; 784 ptr >= el->el_line.buffer && *ptr != '\n'; 785 ptr--) 786 continue; 787 return (int)(el->el_line.cursor - ptr - 1); 788 } 789 } 790 791 protected int 792 ch_resizefun(EditLine *el, el_zfunc_t f, void *a) 793 { 794 el->el_chared.c_resizefun = f; 795 el->el_chared.c_resizearg = a; 796 return 0; 797 } 798
Indexes created Sat Sep 27 14:09:57 GMT 2025