1 /* vi:set ts=8 sts=4 sw=4 noet: 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 * ex_cmds.c: some functions for command line commands 12 */ 13 14 #include "vim.h" 15 #include "version.h" 16 17 #ifdef FEAT_FLOAT 18 # include <float.h> 19 #endif 20 21 static int linelen(int *has_tab); 22 static void do_filter(linenr_T line1, linenr_T line2, exarg_T *eap, char_u *cmd, int do_in, int do_out); 23 static int not_writing(void); 24 static int check_readonly(int *forceit, buf_T *buf); 25 static void delbuf_msg(char_u *name); 26 static int help_compare(const void *s1, const void *s2); 27 static void prepare_help_buffer(void); 28 29 /* 30 * ":ascii" and "ga". 31 */ 32 void 33 do_ascii(exarg_T *eap UNUSED) 34 { 35 int c; 36 int cval; 37 char buf1[20]; 38 char buf2[20]; 39 char_u buf3[7]; 40 #ifdef FEAT_DIGRAPHS 41 char_u *dig; 42 #endif 43 int cc[MAX_MCO]; 44 int ci = 0; 45 int len; 46 47 if (enc_utf8) 48 c = utfc_ptr2char(ml_get_cursor(), cc); 49 else 50 c = gchar_cursor(); 51 if (c == NUL) 52 { 53 msg("NUL"); 54 return; 55 } 56 57 IObuff[0] = NUL; 58 if (!has_mbyte || (enc_dbcs != 0 && c < 0x100) || c < 0x80) 59 { 60 if (c == NL) // NUL is stored as NL 61 c = NUL; 62 if (c == CAR && get_fileformat(curbuf) == EOL_MAC) 63 cval = NL; // NL is stored as CR 64 else 65 cval = c; 66 if (vim_isprintc_strict(c) && (c < ' ' 67 #ifndef EBCDIC 68 || c > '~' 69 #endif 70 )) 71 { 72 transchar_nonprint(buf3, c); 73 vim_snprintf(buf1, sizeof(buf1), " <%s>", (char *)buf3); 74 } 75 else 76 buf1[0] = NUL; 77 #ifndef EBCDIC 78 if (c >= 0x80) 79 vim_snprintf(buf2, sizeof(buf2), " <M-%s>", 80 (char *)transchar(c & 0x7f)); 81 else 82 #endif 83 buf2[0] = NUL; 84 #ifdef FEAT_DIGRAPHS 85 dig = get_digraph_for_char(cval); 86 if (dig != NULL) 87 vim_snprintf((char *)IObuff, IOSIZE, 88 _("<%s>%s%s %d, Hex %02x, Oct %03o, Digr %s"), 89 transchar(c), buf1, buf2, cval, cval, cval, dig); 90 else 91 #endif 92 vim_snprintf((char *)IObuff, IOSIZE, 93 _("<%s>%s%s %d, Hex %02x, Octal %03o"), 94 transchar(c), buf1, buf2, cval, cval, cval); 95 if (enc_utf8) 96 c = cc[ci++]; 97 else 98 c = 0; 99 } 100 101 // Repeat for combining characters. 102 while (has_mbyte && (c >= 0x100 || (enc_utf8 && c >= 0x80))) 103 { 104 len = (int)STRLEN(IObuff); 105 // This assumes every multi-byte char is printable... 106 if (len > 0) 107 IObuff[len++] = ' '; 108 IObuff[len++] = '<'; 109 if (enc_utf8 && utf_iscomposing(c) 110 # ifdef USE_GUI 111 && !gui.in_use 112 # endif 113 ) 114 IObuff[len++] = ' '; // draw composing char on top of a space 115 len += (*mb_char2bytes)(c, IObuff + len); 116 #ifdef FEAT_DIGRAPHS 117 dig = get_digraph_for_char(c); 118 if (dig != NULL) 119 vim_snprintf((char *)IObuff + len, IOSIZE - len, 120 c < 0x10000 ? _("> %d, Hex %04x, Oct %o, Digr %s") 121 : _("> %d, Hex %08x, Oct %o, Digr %s"), 122 c, c, c, dig); 123 else 124 #endif 125 vim_snprintf((char *)IObuff + len, IOSIZE - len, 126 c < 0x10000 ? _("> %d, Hex %04x, Octal %o") 127 : _("> %d, Hex %08x, Octal %o"), 128 c, c, c); 129 if (ci == MAX_MCO) 130 break; 131 if (enc_utf8) 132 c = cc[ci++]; 133 else 134 c = 0; 135 } 136 137 msg((char *)IObuff); 138 } 139 140 /* 141 * ":left", ":center" and ":right": align text. 142 */ 143 void 144 ex_align(exarg_T *eap) 145 { 146 pos_T save_curpos; 147 int len; 148 int indent = 0; 149 int new_indent; 150 int has_tab; 151 int width; 152 153 #ifdef FEAT_RIGHTLEFT 154 if (curwin->w_p_rl) 155 { 156 // switch left and right aligning 157 if (eap->cmdidx == CMD_right) 158 eap->cmdidx = CMD_left; 159 else if (eap->cmdidx == CMD_left) 160 eap->cmdidx = CMD_right; 161 } 162 #endif 163 164 width = atoi((char *)eap->arg); 165 save_curpos = curwin->w_cursor; 166 if (eap->cmdidx == CMD_left) // width is used for new indent 167 { 168 if (width >= 0) 169 indent = width; 170 } 171 else 172 { 173 /* 174 * if 'textwidth' set, use it 175 * else if 'wrapmargin' set, use it 176 * if invalid value, use 80 177 */ 178 if (width <= 0) 179 width = curbuf->b_p_tw; 180 if (width == 0 && curbuf->b_p_wm > 0) 181 width = curwin->w_width - curbuf->b_p_wm; 182 if (width <= 0) 183 width = 80; 184 } 185 186 if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL) 187 return; 188 189 for (curwin->w_cursor.lnum = eap->line1; 190 curwin->w_cursor.lnum <= eap->line2; ++curwin->w_cursor.lnum) 191 { 192 if (eap->cmdidx == CMD_left) // left align 193 new_indent = indent; 194 else 195 { 196 has_tab = FALSE; // avoid uninit warnings 197 len = linelen(eap->cmdidx == CMD_right ? &has_tab 198 : NULL) - get_indent(); 199 200 if (len <= 0) // skip blank lines 201 continue; 202 203 if (eap->cmdidx == CMD_center) 204 new_indent = (width - len) / 2; 205 else 206 { 207 new_indent = width - len; // right align 208 209 /* 210 * Make sure that embedded TABs don't make the text go too far 211 * to the right. 212 */ 213 if (has_tab) 214 while (new_indent > 0) 215 { 216 (void)set_indent(new_indent, 0); 217 if (linelen(NULL) <= width) 218 { 219 /* 220 * Now try to move the line as much as possible to 221 * the right. Stop when it moves too far. 222 */ 223 do 224 (void)set_indent(++new_indent, 0); 225 while (linelen(NULL) <= width); 226 --new_indent; 227 break; 228 } 229 --new_indent; 230 } 231 } 232 } 233 if (new_indent < 0) 234 new_indent = 0; 235 (void)set_indent(new_indent, 0); // set indent 236 } 237 changed_lines(eap->line1, 0, eap->line2 + 1, 0L); 238 curwin->w_cursor = save_curpos; 239 beginline(BL_WHITE | BL_FIX); 240 } 241 242 /* 243 * Get the length of the current line, excluding trailing white space. 244 */ 245 static int 246 linelen(int *has_tab) 247 { 248 char_u *line; 249 char_u *first; 250 char_u *last; 251 int save; 252 int len; 253 254 // Get the line. If it's empty bail out early (could be the empty string 255 // for an unloaded buffer). 256 line = ml_get_curline(); 257 if (*line == NUL) 258 return 0; 259 260 // find the first non-blank character 261 first = skipwhite(line); 262 263 // find the character after the last non-blank character 264 for (last = first + STRLEN(first); 265 last > first && VIM_ISWHITE(last[-1]); --last) 266 ; 267 save = *last; 268 *last = NUL; 269 len = linetabsize(line); // get line length 270 if (has_tab != NULL) // check for embedded TAB 271 *has_tab = (vim_strchr(first, TAB) != NULL); 272 *last = save; 273 274 return len; 275 } 276 277 // Buffer for two lines used during sorting. They are allocated to 278 // contain the longest line being sorted. 279 static char_u *sortbuf1; 280 static char_u *sortbuf2; 281 282 static int sort_ic; // ignore case 283 static int sort_nr; // sort on number 284 static int sort_rx; // sort on regex instead of skipping it 285 #ifdef FEAT_FLOAT 286 static int sort_flt; // sort on floating number 287 #endif 288 289 static int sort_abort; // flag to indicate if sorting has been interrupted 290 291 // Struct to store info to be sorted. 292 typedef struct 293 { 294 linenr_T lnum; // line number 295 union { 296 struct 297 { 298 varnumber_T start_col_nr; // starting column number 299 varnumber_T end_col_nr; // ending column number 300 } line; 301 struct 302 { 303 varnumber_T value; // value if sorting by integer 304 int is_number; // TRUE when line contains a number 305 } num; 306 #ifdef FEAT_FLOAT 307 float_T value_flt; // value if sorting by float 308 #endif 309 } st_u; 310 } sorti_T; 311 312 static int sort_compare(const void *s1, const void *s2); 313 314 static int 315 sort_compare(const void *s1, const void *s2) 316 { 317 sorti_T l1 = *(sorti_T *)s1; 318 sorti_T l2 = *(sorti_T *)s2; 319 int result = 0; 320 321 // If the user interrupts, there's no way to stop qsort() immediately, but 322 // if we return 0 every time, qsort will assume it's done sorting and 323 // exit. 324 if (sort_abort) 325 return 0; 326 fast_breakcheck(); 327 if (got_int) 328 sort_abort = TRUE; 329 330 if (sort_nr) 331 { 332 if (l1.st_u.num.is_number != l2.st_u.num.is_number) 333 result = l1.st_u.num.is_number - l2.st_u.num.is_number; 334 else 335 result = l1.st_u.num.value == l2.st_u.num.value ? 0 336 : l1.st_u.num.value > l2.st_u.num.value ? 1 : -1; 337 } 338 #ifdef FEAT_FLOAT 339 else if (sort_flt) 340 result = l1.st_u.value_flt == l2.st_u.value_flt ? 0 341 : l1.st_u.value_flt > l2.st_u.value_flt ? 1 : -1; 342 #endif 343 else 344 { 345 // We need to copy one line into "sortbuf1", because there is no 346 // guarantee that the first pointer becomes invalid when obtaining the 347 // second one. 348 STRNCPY(sortbuf1, ml_get(l1.lnum) + l1.st_u.line.start_col_nr, 349 l1.st_u.line.end_col_nr - l1.st_u.line.start_col_nr + 1); 350 sortbuf1[l1.st_u.line.end_col_nr - l1.st_u.line.start_col_nr] = 0; 351 STRNCPY(sortbuf2, ml_get(l2.lnum) + l2.st_u.line.start_col_nr, 352 l2.st_u.line.end_col_nr - l2.st_u.line.start_col_nr + 1); 353 sortbuf2[l2.st_u.line.end_col_nr - l2.st_u.line.start_col_nr] = 0; 354 355 result = sort_ic ? STRICMP(sortbuf1, sortbuf2) 356 : STRCMP(sortbuf1, sortbuf2); 357 } 358 359 // If two lines have the same value, preserve the original line order. 360 if (result == 0) 361 return (int)(l1.lnum - l2.lnum); 362 return result; 363 } 364 365 /* 366 * ":sort". 367 */ 368 void 369 ex_sort(exarg_T *eap) 370 { 371 regmatch_T regmatch; 372 int len; 373 linenr_T lnum; 374 long maxlen = 0; 375 sorti_T *nrs; 376 size_t count = (size_t)(eap->line2 - eap->line1 + 1); 377 size_t i; 378 char_u *p; 379 char_u *s; 380 char_u *s2; 381 char_u c; // temporary character storage 382 int unique = FALSE; 383 long deleted; 384 colnr_T start_col; 385 colnr_T end_col; 386 int sort_what = 0; 387 int format_found = 0; 388 int change_occurred = FALSE; // Buffer contents changed. 389 390 // Sorting one line is really quick! 391 if (count <= 1) 392 return; 393 394 if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL) 395 return; 396 sortbuf1 = NULL; 397 sortbuf2 = NULL; 398 regmatch.regprog = NULL; 399 nrs = ALLOC_MULT(sorti_T, count); 400 if (nrs == NULL) 401 goto sortend; 402 403 sort_abort = sort_ic = sort_rx = sort_nr = 0; 404 #ifdef FEAT_FLOAT 405 sort_flt = 0; 406 #endif 407 408 for (p = eap->arg; *p != NUL; ++p) 409 { 410 if (VIM_ISWHITE(*p)) 411 ; 412 else if (*p == 'i') 413 sort_ic = TRUE; 414 else if (*p == 'r') 415 sort_rx = TRUE; 416 else if (*p == 'n') 417 { 418 sort_nr = 1; 419 ++format_found; 420 } 421 #ifdef FEAT_FLOAT 422 else if (*p == 'f') 423 { 424 sort_flt = 1; 425 ++format_found; 426 } 427 #endif 428 else if (*p == 'b') 429 { 430 sort_what = STR2NR_BIN + STR2NR_FORCE; 431 ++format_found; 432 } 433 else if (*p == 'o') 434 { 435 sort_what = STR2NR_OCT + STR2NR_FORCE; 436 ++format_found; 437 } 438 else if (*p == 'x') 439 { 440 sort_what = STR2NR_HEX + STR2NR_FORCE; 441 ++format_found; 442 } 443 else if (*p == 'u') 444 unique = TRUE; 445 else if (*p == '"') // comment start 446 break; 447 else if (check_nextcmd(p) != NULL) 448 { 449 eap->nextcmd = check_nextcmd(p); 450 break; 451 } 452 else if (!ASCII_ISALPHA(*p) && regmatch.regprog == NULL) 453 { 454 s = skip_regexp(p + 1, *p, TRUE, NULL); 455 if (*s != *p) 456 { 457 emsg(_(e_invalpat)); 458 goto sortend; 459 } 460 *s = NUL; 461 // Use last search pattern if sort pattern is empty. 462 if (s == p + 1) 463 { 464 if (last_search_pat() == NULL) 465 { 466 emsg(_(e_noprevre)); 467 goto sortend; 468 } 469 regmatch.regprog = vim_regcomp(last_search_pat(), RE_MAGIC); 470 } 471 else 472 regmatch.regprog = vim_regcomp(p + 1, RE_MAGIC); 473 if (regmatch.regprog == NULL) 474 goto sortend; 475 p = s; // continue after the regexp 476 regmatch.rm_ic = p_ic; 477 } 478 else 479 { 480 semsg(_(e_invarg2), p); 481 goto sortend; 482 } 483 } 484 485 // Can only have one of 'n', 'b', 'o' and 'x'. 486 if (format_found > 1) 487 { 488 emsg(_(e_invarg)); 489 goto sortend; 490 } 491 492 // From here on "sort_nr" is used as a flag for any integer number 493 // sorting. 494 sort_nr += sort_what; 495 496 /* 497 * Make an array with all line numbers. This avoids having to copy all 498 * the lines into allocated memory. 499 * When sorting on strings "start_col_nr" is the offset in the line, for 500 * numbers sorting it's the number to sort on. This means the pattern 501 * matching and number conversion only has to be done once per line. 502 * Also get the longest line length for allocating "sortbuf". 503 */ 504 for (lnum = eap->line1; lnum <= eap->line2; ++lnum) 505 { 506 s = ml_get(lnum); 507 len = (int)STRLEN(s); 508 if (maxlen < len) 509 maxlen = len; 510 511 start_col = 0; 512 end_col = len; 513 if (regmatch.regprog != NULL && vim_regexec(®match, s, 0)) 514 { 515 if (sort_rx) 516 { 517 start_col = (colnr_T)(regmatch.startp[0] - s); 518 end_col = (colnr_T)(regmatch.endp[0] - s); 519 } 520 else 521 start_col = (colnr_T)(regmatch.endp[0] - s); 522 } 523 else 524 if (regmatch.regprog != NULL) 525 end_col = 0; 526 527 if (sort_nr 528 #ifdef FEAT_FLOAT 529 || sort_flt 530 #endif 531 ) 532 { 533 // Make sure vim_str2nr doesn't read any digits past the end 534 // of the match, by temporarily terminating the string there 535 s2 = s + end_col; 536 c = *s2; 537 *s2 = NUL; 538 // Sorting on number: Store the number itself. 539 p = s + start_col; 540 if (sort_nr) 541 { 542 if (sort_what & STR2NR_HEX) 543 s = skiptohex(p); 544 else if (sort_what & STR2NR_BIN) 545 s = skiptobin(p); 546 else 547 s = skiptodigit(p); 548 if (s > p && s[-1] == '-') 549 --s; // include preceding negative sign 550 if (*s == NUL) 551 { 552 // line without number should sort before any number 553 nrs[lnum - eap->line1].st_u.num.is_number = FALSE; 554 nrs[lnum - eap->line1].st_u.num.value = 0; 555 } 556 else 557 { 558 nrs[lnum - eap->line1].st_u.num.is_number = TRUE; 559 vim_str2nr(s, NULL, NULL, sort_what, 560 &nrs[lnum - eap->line1].st_u.num.value, 561 NULL, 0, FALSE); 562 } 563 } 564 #ifdef FEAT_FLOAT 565 else 566 { 567 s = skipwhite(p); 568 if (*s == '+') 569 s = skipwhite(s + 1); 570 571 if (*s == NUL) 572 // empty line should sort before any number 573 nrs[lnum - eap->line1].st_u.value_flt = -DBL_MAX; 574 else 575 nrs[lnum - eap->line1].st_u.value_flt = 576 strtod((char *)s, NULL); 577 } 578 #endif 579 *s2 = c; 580 } 581 else 582 { 583 // Store the column to sort at. 584 nrs[lnum - eap->line1].st_u.line.start_col_nr = start_col; 585 nrs[lnum - eap->line1].st_u.line.end_col_nr = end_col; 586 } 587 588 nrs[lnum - eap->line1].lnum = lnum; 589 590 if (regmatch.regprog != NULL) 591 fast_breakcheck(); 592 if (got_int) 593 goto sortend; 594 } 595 596 // Allocate a buffer that can hold the longest line. 597 sortbuf1 = alloc(maxlen + 1); 598 if (sortbuf1 == NULL) 599 goto sortend; 600 sortbuf2 = alloc(maxlen + 1); 601 if (sortbuf2 == NULL) 602 goto sortend; 603 604 // Sort the array of line numbers. Note: can't be interrupted! 605 qsort((void *)nrs, count, sizeof(sorti_T), sort_compare); 606 607 if (sort_abort) 608 goto sortend; 609 610 // Insert the lines in the sorted order below the last one. 611 lnum = eap->line2; 612 for (i = 0; i < count; ++i) 613 { 614 linenr_T get_lnum = nrs[eap->forceit ? count - i - 1 : i].lnum; 615 616 // If the original line number of the line being placed is not the same 617 // as "lnum" (accounting for offset), we know that the buffer changed. 618 if (get_lnum + ((linenr_T)count - 1) != lnum) 619 change_occurred = TRUE; 620 621 s = ml_get(get_lnum); 622 if (!unique || i == 0 623 || (sort_ic ? STRICMP(s, sortbuf1) : STRCMP(s, sortbuf1)) != 0) 624 { 625 // Copy the line into a buffer, it may become invalid in 626 // ml_append(). And it's needed for "unique". 627 STRCPY(sortbuf1, s); 628 if (ml_append(lnum++, sortbuf1, (colnr_T)0, FALSE) == FAIL) 629 break; 630 } 631 fast_breakcheck(); 632 if (got_int) 633 goto sortend; 634 } 635 636 // delete the original lines if appending worked 637 if (i == count) 638 for (i = 0; i < count; ++i) 639 ml_delete(eap->line1, FALSE); 640 else 641 count = 0; 642 643 // Adjust marks for deleted (or added) lines and prepare for displaying. 644 deleted = (long)(count - (lnum - eap->line2)); 645 if (deleted > 0) 646 { 647 mark_adjust(eap->line2 - deleted, eap->line2, (long)MAXLNUM, -deleted); 648 msgmore(-deleted); 649 } 650 else if (deleted < 0) 651 mark_adjust(eap->line2, MAXLNUM, -deleted, 0L); 652 653 if (change_occurred || deleted != 0) 654 changed_lines(eap->line1, 0, eap->line2 + 1, -deleted); 655 656 curwin->w_cursor.lnum = eap->line1; 657 beginline(BL_WHITE | BL_FIX); 658 659 sortend: 660 vim_free(nrs); 661 vim_free(sortbuf1); 662 vim_free(sortbuf2); 663 vim_regfree(regmatch.regprog); 664 if (got_int) 665 emsg(_(e_interr)); 666 } 667 668 /* 669 * :move command - move lines line1-line2 to line dest 670 * 671 * return FAIL for failure, OK otherwise 672 */ 673 int 674 do_move(linenr_T line1, linenr_T line2, linenr_T dest) 675 { 676 char_u *str; 677 linenr_T l; 678 linenr_T extra; // Num lines added before line1 679 linenr_T num_lines; // Num lines moved 680 linenr_T last_line; // Last line in file after adding new text 681 #ifdef FEAT_FOLDING 682 win_T *win; 683 tabpage_T *tp; 684 #endif 685 686 if (dest >= line1 && dest < line2) 687 { 688 emsg(_("E134: Cannot move a range of lines into itself")); 689 return FAIL; 690 } 691 692 // Do nothing if we are not actually moving any lines. This will prevent 693 // the 'modified' flag from being set without cause. 694 if (dest == line1 - 1 || dest == line2) 695 { 696 // Move the cursor as if lines were moved (see below) to be backwards 697 // compatible. 698 if (dest >= line1) 699 curwin->w_cursor.lnum = dest; 700 else 701 curwin->w_cursor.lnum = dest + (line2 - line1) + 1; 702 703 return OK; 704 } 705 706 num_lines = line2 - line1 + 1; 707 708 /* 709 * First we copy the old text to its new location -- webb 710 * Also copy the flag that ":global" command uses. 711 */ 712 if (u_save(dest, dest + 1) == FAIL) 713 return FAIL; 714 for (extra = 0, l = line1; l <= line2; l++) 715 { 716 str = vim_strsave(ml_get(l + extra)); 717 if (str != NULL) 718 { 719 ml_append(dest + l - line1, str, (colnr_T)0, FALSE); 720 vim_free(str); 721 if (dest < line1) 722 extra++; 723 } 724 } 725 726 /* 727 * Now we must be careful adjusting our marks so that we don't overlap our 728 * mark_adjust() calls. 729 * 730 * We adjust the marks within the old text so that they refer to the 731 * last lines of the file (temporarily), because we know no other marks 732 * will be set there since these line numbers did not exist until we added 733 * our new lines. 734 * 735 * Then we adjust the marks on lines between the old and new text positions 736 * (either forwards or backwards). 737 * 738 * And Finally we adjust the marks we put at the end of the file back to 739 * their final destination at the new text position -- webb 740 */ 741 last_line = curbuf->b_ml.ml_line_count; 742 mark_adjust_nofold(line1, line2, last_line - line2, 0L); 743 if (dest >= line2) 744 { 745 mark_adjust_nofold(line2 + 1, dest, -num_lines, 0L); 746 #ifdef FEAT_FOLDING 747 FOR_ALL_TAB_WINDOWS(tp, win) { 748 if (win->w_buffer == curbuf) 749 foldMoveRange(&win->w_folds, line1, line2, dest); 750 } 751 #endif 752 if (!cmdmod.lockmarks) 753 { 754 curbuf->b_op_start.lnum = dest - num_lines + 1; 755 curbuf->b_op_end.lnum = dest; 756 } 757 } 758 else 759 { 760 mark_adjust_nofold(dest + 1, line1 - 1, num_lines, 0L); 761 #ifdef FEAT_FOLDING 762 FOR_ALL_TAB_WINDOWS(tp, win) { 763 if (win->w_buffer == curbuf) 764 foldMoveRange(&win->w_folds, dest + 1, line1 - 1, line2); 765 } 766 #endif 767 if (!cmdmod.lockmarks) 768 { 769 curbuf->b_op_start.lnum = dest + 1; 770 curbuf->b_op_end.lnum = dest + num_lines; 771 } 772 } 773 if (!cmdmod.lockmarks) 774 curbuf->b_op_start.col = curbuf->b_op_end.col = 0; 775 mark_adjust_nofold(last_line - num_lines + 1, last_line, 776 -(last_line - dest - extra), 0L); 777 778 /* 779 * Now we delete the original text -- webb 780 */ 781 if (u_save(line1 + extra - 1, line2 + extra + 1) == FAIL) 782 return FAIL; 783 784 for (l = line1; l <= line2; l++) 785 ml_delete(line1 + extra, TRUE); 786 787 if (!global_busy && num_lines > p_report) 788 smsg(NGETTEXT("%ld line moved", "%ld lines moved", num_lines), 789 (long)num_lines); 790 791 /* 792 * Leave the cursor on the last of the moved lines. 793 */ 794 if (dest >= line1) 795 curwin->w_cursor.lnum = dest; 796 else 797 curwin->w_cursor.lnum = dest + (line2 - line1) + 1; 798 799 if (line1 < dest) 800 { 801 dest += num_lines + 1; 802 last_line = curbuf->b_ml.ml_line_count; 803 if (dest > last_line + 1) 804 dest = last_line + 1; 805 changed_lines(line1, 0, dest, 0L); 806 } 807 else 808 changed_lines(dest + 1, 0, line1 + num_lines, 0L); 809 810 return OK; 811 } 812 813 /* 814 * ":copy" 815 */ 816 void 817 ex_copy(linenr_T line1, linenr_T line2, linenr_T n) 818 { 819 linenr_T count; 820 char_u *p; 821 822 count = line2 - line1 + 1; 823 if (!cmdmod.lockmarks) 824 { 825 curbuf->b_op_start.lnum = n + 1; 826 curbuf->b_op_end.lnum = n + count; 827 curbuf->b_op_start.col = curbuf->b_op_end.col = 0; 828 } 829 830 /* 831 * there are three situations: 832 * 1. destination is above line1 833 * 2. destination is between line1 and line2 834 * 3. destination is below line2 835 * 836 * n = destination (when starting) 837 * curwin->w_cursor.lnum = destination (while copying) 838 * line1 = start of source (while copying) 839 * line2 = end of source (while copying) 840 */ 841 if (u_save(n, n + 1) == FAIL) 842 return; 843 844 curwin->w_cursor.lnum = n; 845 while (line1 <= line2) 846 { 847 // need to use vim_strsave() because the line will be unlocked within 848 // ml_append() 849 p = vim_strsave(ml_get(line1)); 850 if (p != NULL) 851 { 852 ml_append(curwin->w_cursor.lnum, p, (colnr_T)0, FALSE); 853 vim_free(p); 854 } 855 // situation 2: skip already copied lines 856 if (line1 == n) 857 line1 = curwin->w_cursor.lnum; 858 ++line1; 859 if (curwin->w_cursor.lnum < line1) 860 ++line1; 861 if (curwin->w_cursor.lnum < line2) 862 ++line2; 863 ++curwin->w_cursor.lnum; 864 } 865 866 appended_lines_mark(n, count); 867 868 msgmore((long)count); 869 } 870 871 static char_u *prevcmd = NULL; // the previous command 872 873 #if defined(EXITFREE) || defined(PROTO) 874 void 875 free_prev_shellcmd(void) 876 { 877 vim_free(prevcmd); 878 } 879 #endif 880 881 /* 882 * Handle the ":!cmd" command. Also for ":r !cmd" and ":w !cmd" 883 * Bangs in the argument are replaced with the previously entered command. 884 * Remember the argument. 885 */ 886 void 887 do_bang( 888 int addr_count, 889 exarg_T *eap, 890 int forceit, 891 int do_in, 892 int do_out) 893 { 894 char_u *arg = eap->arg; // command 895 linenr_T line1 = eap->line1; // start of range 896 linenr_T line2 = eap->line2; // end of range 897 char_u *newcmd = NULL; // the new command 898 int free_newcmd = FALSE; // need to free() newcmd 899 int ins_prevcmd; 900 char_u *t; 901 char_u *p; 902 char_u *trailarg; 903 int len; 904 int scroll_save = msg_scroll; 905 906 /* 907 * Disallow shell commands for "rvim". 908 * Disallow shell commands from .exrc and .vimrc in current directory for 909 * security reasons. 910 */ 911 if (check_restricted() || check_secure()) 912 return; 913 914 if (addr_count == 0) // :! 915 { 916 msg_scroll = FALSE; // don't scroll here 917 autowrite_all(); 918 msg_scroll = scroll_save; 919 } 920 921 /* 922 * Try to find an embedded bang, like in :!<cmd> ! [args] 923 * (:!! is indicated by the 'forceit' variable) 924 */ 925 ins_prevcmd = forceit; 926 trailarg = arg; 927 do 928 { 929 len = (int)STRLEN(trailarg) + 1; 930 if (newcmd != NULL) 931 len += (int)STRLEN(newcmd); 932 if (ins_prevcmd) 933 { 934 if (prevcmd == NULL) 935 { 936 emsg(_(e_noprev)); 937 vim_free(newcmd); 938 return; 939 } 940 len += (int)STRLEN(prevcmd); 941 } 942 if ((t = alloc(len)) == NULL) 943 { 944 vim_free(newcmd); 945 return; 946 } 947 *t = NUL; 948 if (newcmd != NULL) 949 STRCAT(t, newcmd); 950 if (ins_prevcmd) 951 STRCAT(t, prevcmd); 952 p = t + STRLEN(t); 953 STRCAT(t, trailarg); 954 vim_free(newcmd); 955 newcmd = t; 956 957 /* 958 * Scan the rest of the argument for '!', which is replaced by the 959 * previous command. "\!" is replaced by "!" (this is vi compatible). 960 */ 961 trailarg = NULL; 962 while (*p) 963 { 964 if (*p == '!') 965 { 966 if (p > newcmd && p[-1] == '\\') 967 STRMOVE(p - 1, p); 968 else 969 { 970 trailarg = p; 971 *trailarg++ = NUL; 972 ins_prevcmd = TRUE; 973 break; 974 } 975 } 976 ++p; 977 } 978 } while (trailarg != NULL); 979 980 vim_free(prevcmd); 981 prevcmd = newcmd; 982 983 if (bangredo) // put cmd in redo buffer for ! command 984 { 985 // If % or # appears in the command, it must have been escaped. 986 // Reescape them, so that redoing them does not substitute them by the 987 // buffername. 988 char_u *cmd = vim_strsave_escaped(prevcmd, (char_u *)"%#"); 989 990 if (cmd != NULL) 991 { 992 AppendToRedobuffLit(cmd, -1); 993 vim_free(cmd); 994 } 995 else 996 AppendToRedobuffLit(prevcmd, -1); 997 AppendToRedobuff((char_u *)"\n"); 998 bangredo = FALSE; 999 } 1000 /* 1001 * Add quotes around the command, for shells that need them. 1002 */ 1003 if (*p_shq != NUL) 1004 { 1005 newcmd = alloc(STRLEN(prevcmd) + 2 * STRLEN(p_shq) + 1); 1006 if (newcmd == NULL) 1007 return; 1008 STRCPY(newcmd, p_shq); 1009 STRCAT(newcmd, prevcmd); 1010 STRCAT(newcmd, p_shq); 1011 free_newcmd = TRUE; 1012 } 1013 if (addr_count == 0) // :! 1014 { 1015 // echo the command 1016 msg_start(); 1017 msg_putchar(':'); 1018 msg_putchar('!'); 1019 msg_outtrans(newcmd); 1020 msg_clr_eos(); 1021 windgoto(msg_row, msg_col); 1022 1023 do_shell(newcmd, 0); 1024 } 1025 else // :range! 1026 { 1027 // Careful: This may recursively call do_bang() again! (because of 1028 // autocommands) 1029 do_filter(line1, line2, eap, newcmd, do_in, do_out); 1030 apply_autocmds(EVENT_SHELLFILTERPOST, NULL, NULL, FALSE, curbuf); 1031 } 1032 if (free_newcmd) 1033 vim_free(newcmd); 1034 } 1035 1036 /* 1037 * do_filter: filter lines through a command given by the user 1038 * 1039 * We mostly use temp files and the call_shell() routine here. This would 1040 * normally be done using pipes on a UNIX machine, but this is more portable 1041 * to non-unix machines. The call_shell() routine needs to be able 1042 * to deal with redirection somehow, and should handle things like looking 1043 * at the PATH env. variable, and adding reasonable extensions to the 1044 * command name given by the user. All reasonable versions of call_shell() 1045 * do this. 1046 * Alternatively, if on Unix and redirecting input or output, but not both, 1047 * and the 'shelltemp' option isn't set, use pipes. 1048 * We use input redirection if do_in is TRUE. 1049 * We use output redirection if do_out is TRUE. 1050 */ 1051 static void 1052 do_filter( 1053 linenr_T line1, 1054 linenr_T line2, 1055 exarg_T *eap, // for forced 'ff' and 'fenc' 1056 char_u *cmd, 1057 int do_in, 1058 int do_out) 1059 { 1060 char_u *itmp = NULL; 1061 char_u *otmp = NULL; 1062 linenr_T linecount; 1063 linenr_T read_linecount; 1064 pos_T cursor_save; 1065 char_u *cmd_buf; 1066 buf_T *old_curbuf = curbuf; 1067 int shell_flags = 0; 1068 pos_T orig_start = curbuf->b_op_start; 1069 pos_T orig_end = curbuf->b_op_end; 1070 int save_lockmarks = cmdmod.lockmarks; 1071 #ifdef FEAT_FILTERPIPE 1072 int stmp = p_stmp; 1073 #endif 1074 1075 if (*cmd == NUL) // no filter command 1076 return; 1077 1078 // Temporarily disable lockmarks since that's needed to propagate changed 1079 // regions of the buffer for foldUpdate(), linecount, etc. 1080 cmdmod.lockmarks = 0; 1081 1082 cursor_save = curwin->w_cursor; 1083 linecount = line2 - line1 + 1; 1084 curwin->w_cursor.lnum = line1; 1085 curwin->w_cursor.col = 0; 1086 changed_line_abv_curs(); 1087 invalidate_botline(); 1088 1089 /* 1090 * When using temp files: 1091 * 1. * Form temp file names 1092 * 2. * Write the lines to a temp file 1093 * 3. Run the filter command on the temp file 1094 * 4. * Read the output of the command into the buffer 1095 * 5. * Delete the original lines to be filtered 1096 * 6. * Remove the temp files 1097 * 1098 * When writing the input with a pipe or when catching the output with a 1099 * pipe only need to do 3. 1100 */ 1101 1102 if (do_out) 1103 shell_flags |= SHELL_DOOUT; 1104 1105 #ifdef FEAT_FILTERPIPE 1106 # ifdef VIMDLL 1107 if (!gui.in_use && !gui.starting) 1108 stmp = 1; // Console mode doesn't support filterpipe. 1109 # endif 1110 1111 if (!do_in && do_out && !stmp) 1112 { 1113 // Use a pipe to fetch stdout of the command, do not use a temp file. 1114 shell_flags |= SHELL_READ; 1115 curwin->w_cursor.lnum = line2; 1116 } 1117 else if (do_in && !do_out && !stmp) 1118 { 1119 // Use a pipe to write stdin of the command, do not use a temp file. 1120 shell_flags |= SHELL_WRITE; 1121 curbuf->b_op_start.lnum = line1; 1122 curbuf->b_op_end.lnum = line2; 1123 } 1124 else if (do_in && do_out && !stmp) 1125 { 1126 // Use a pipe to write stdin and fetch stdout of the command, do not 1127 // use a temp file. 1128 shell_flags |= SHELL_READ|SHELL_WRITE; 1129 curbuf->b_op_start.lnum = line1; 1130 curbuf->b_op_end.lnum = line2; 1131 curwin->w_cursor.lnum = line2; 1132 } 1133 else 1134 #endif 1135 if ((do_in && (itmp = vim_tempname('i', FALSE)) == NULL) 1136 || (do_out && (otmp = vim_tempname('o', FALSE)) == NULL)) 1137 { 1138 emsg(_(e_notmp)); 1139 goto filterend; 1140 } 1141 1142 /* 1143 * The writing and reading of temp files will not be shown. 1144 * Vi also doesn't do this and the messages are not very informative. 1145 */ 1146 ++no_wait_return; // don't call wait_return() while busy 1147 if (itmp != NULL && buf_write(curbuf, itmp, NULL, line1, line2, eap, 1148 FALSE, FALSE, FALSE, TRUE) == FAIL) 1149 { 1150 msg_putchar('\n'); // keep message from buf_write() 1151 --no_wait_return; 1152 #if defined(FEAT_EVAL) 1153 if (!aborting()) 1154 #endif 1155 (void)semsg(_(e_notcreate), itmp); // will call wait_return 1156 goto filterend; 1157 } 1158 if (curbuf != old_curbuf) 1159 goto filterend; 1160 1161 if (!do_out) 1162 msg_putchar('\n'); 1163 1164 // Create the shell command in allocated memory. 1165 cmd_buf = make_filter_cmd(cmd, itmp, otmp); 1166 if (cmd_buf == NULL) 1167 goto filterend; 1168 1169 windgoto((int)Rows - 1, 0); 1170 cursor_on(); 1171 1172 /* 1173 * When not redirecting the output the command can write anything to the 1174 * screen. If 'shellredir' is equal to ">", screen may be messed up by 1175 * stderr output of external command. Clear the screen later. 1176 * If do_in is FALSE, this could be something like ":r !cat", which may 1177 * also mess up the screen, clear it later. 1178 */ 1179 if (!do_out || STRCMP(p_srr, ">") == 0 || !do_in) 1180 redraw_later_clear(); 1181 1182 if (do_out) 1183 { 1184 if (u_save((linenr_T)(line2), (linenr_T)(line2 + 1)) == FAIL) 1185 { 1186 vim_free(cmd_buf); 1187 goto error; 1188 } 1189 redraw_curbuf_later(VALID); 1190 } 1191 read_linecount = curbuf->b_ml.ml_line_count; 1192 1193 /* 1194 * When call_shell() fails wait_return() is called to give the user a 1195 * chance to read the error messages. Otherwise errors are ignored, so you 1196 * can see the error messages from the command that appear on stdout; use 1197 * 'u' to fix the text 1198 * Switch to cooked mode when not redirecting stdin, avoids that something 1199 * like ":r !cat" hangs. 1200 * Pass on the SHELL_DOOUT flag when the output is being redirected. 1201 */ 1202 if (call_shell(cmd_buf, SHELL_FILTER | SHELL_COOKED | shell_flags)) 1203 { 1204 redraw_later_clear(); 1205 wait_return(FALSE); 1206 } 1207 vim_free(cmd_buf); 1208 1209 did_check_timestamps = FALSE; 1210 need_check_timestamps = TRUE; 1211 1212 // When interrupting the shell command, it may still have produced some 1213 // useful output. Reset got_int here, so that readfile() won't cancel 1214 // reading. 1215 ui_breakcheck(); 1216 got_int = FALSE; 1217 1218 if (do_out) 1219 { 1220 if (otmp != NULL) 1221 { 1222 if (readfile(otmp, NULL, line2, (linenr_T)0, (linenr_T)MAXLNUM, 1223 eap, READ_FILTER) != OK) 1224 { 1225 #if defined(FEAT_EVAL) 1226 if (!aborting()) 1227 #endif 1228 { 1229 msg_putchar('\n'); 1230 semsg(_(e_notread), otmp); 1231 } 1232 goto error; 1233 } 1234 if (curbuf != old_curbuf) 1235 goto filterend; 1236 } 1237 1238 read_linecount = curbuf->b_ml.ml_line_count - read_linecount; 1239 1240 if (shell_flags & SHELL_READ) 1241 { 1242 curbuf->b_op_start.lnum = line2 + 1; 1243 curbuf->b_op_end.lnum = curwin->w_cursor.lnum; 1244 appended_lines_mark(line2, read_linecount); 1245 } 1246 1247 if (do_in) 1248 { 1249 if (cmdmod.keepmarks || vim_strchr(p_cpo, CPO_REMMARK) == NULL) 1250 { 1251 if (read_linecount >= linecount) 1252 // move all marks from old lines to new lines 1253 mark_adjust(line1, line2, linecount, 0L); 1254 else 1255 { 1256 // move marks from old lines to new lines, delete marks 1257 // that are in deleted lines 1258 mark_adjust(line1, line1 + read_linecount - 1, 1259 linecount, 0L); 1260 mark_adjust(line1 + read_linecount, line2, MAXLNUM, 0L); 1261 } 1262 } 1263 1264 /* 1265 * Put cursor on first filtered line for ":range!cmd". 1266 * Adjust '[ and '] (set by buf_write()). 1267 */ 1268 curwin->w_cursor.lnum = line1; 1269 del_lines(linecount, TRUE); 1270 curbuf->b_op_start.lnum -= linecount; // adjust '[ 1271 curbuf->b_op_end.lnum -= linecount; // adjust '] 1272 write_lnum_adjust(-linecount); // adjust last line 1273 // for next write 1274 #ifdef FEAT_FOLDING 1275 foldUpdate(curwin, curbuf->b_op_start.lnum, curbuf->b_op_end.lnum); 1276 #endif 1277 } 1278 else 1279 { 1280 /* 1281 * Put cursor on last new line for ":r !cmd". 1282 */ 1283 linecount = curbuf->b_op_end.lnum - curbuf->b_op_start.lnum + 1; 1284 curwin->w_cursor.lnum = curbuf->b_op_end.lnum; 1285 } 1286 1287 beginline(BL_WHITE | BL_FIX); // cursor on first non-blank 1288 --no_wait_return; 1289 1290 if (linecount > p_report) 1291 { 1292 if (do_in) 1293 { 1294 vim_snprintf(msg_buf, sizeof(msg_buf), 1295 _("%ld lines filtered"), (long)linecount); 1296 if (msg(msg_buf) && !msg_scroll) 1297 // save message to display it after redraw 1298 set_keep_msg((char_u *)msg_buf, 0); 1299 } 1300 else 1301 msgmore((long)linecount); 1302 } 1303 } 1304 else 1305 { 1306 error: 1307 // put cursor back in same position for ":w !cmd" 1308 curwin->w_cursor = cursor_save; 1309 --no_wait_return; 1310 wait_return(FALSE); 1311 } 1312 1313 filterend: 1314 1315 cmdmod.lockmarks = save_lockmarks; 1316 if (curbuf != old_curbuf) 1317 { 1318 --no_wait_return; 1319 emsg(_("E135: *Filter* Autocommands must not change current buffer")); 1320 } 1321 else if (cmdmod.lockmarks) 1322 { 1323 curbuf->b_op_start = orig_start; 1324 curbuf->b_op_end = orig_end; 1325 } 1326 1327 if (itmp != NULL) 1328 mch_remove(itmp); 1329 if (otmp != NULL) 1330 mch_remove(otmp); 1331 vim_free(itmp); 1332 vim_free(otmp); 1333 } 1334 1335 /* 1336 * Call a shell to execute a command. 1337 * When "cmd" is NULL start an interactive shell. 1338 */ 1339 void 1340 do_shell( 1341 char_u *cmd, 1342 int flags) // may be SHELL_DOOUT when output is redirected 1343 { 1344 buf_T *buf; 1345 #if !defined(FEAT_GUI_MSWIN) || defined(VIMDLL) 1346 int save_nwr; 1347 #endif 1348 #ifdef MSWIN 1349 int winstart = FALSE; 1350 int keep_termcap = FALSE; 1351 #endif 1352 1353 /* 1354 * Disallow shell commands for "rvim". 1355 * Disallow shell commands from .exrc and .vimrc in current directory for 1356 * security reasons. 1357 */ 1358 if (check_restricted() || check_secure()) 1359 { 1360 msg_end(); 1361 return; 1362 } 1363 1364 #ifdef MSWIN 1365 /* 1366 * Check if ":!start" is used. This implies not stopping termcap mode. 1367 */ 1368 if (cmd != NULL) 1369 keep_termcap = winstart = (STRNICMP(cmd, "start ", 6) == 0); 1370 1371 # if defined(FEAT_GUI) && defined(FEAT_TERMINAL) 1372 // Don't stop termcap mode when using a terminal window for the shell. 1373 if (gui.in_use && vim_strchr(p_go, GO_TERMINAL) != NULL) 1374 keep_termcap = TRUE; 1375 # endif 1376 #endif 1377 1378 /* 1379 * For autocommands we want to get the output on the current screen, to 1380 * avoid having to type return below. 1381 */ 1382 msg_putchar('\r'); // put cursor at start of line 1383 if (!autocmd_busy) 1384 { 1385 #ifdef MSWIN 1386 if (!keep_termcap) 1387 #endif 1388 stoptermcap(); 1389 } 1390 #ifdef MSWIN 1391 if (!winstart) 1392 #endif 1393 msg_putchar('\n'); // may shift screen one line up 1394 1395 // warning message before calling the shell 1396 if (p_warn && !autocmd_busy && msg_silent == 0) 1397 FOR_ALL_BUFFERS(buf) 1398 if (bufIsChangedNotTerm(buf)) 1399 { 1400 #ifdef FEAT_GUI_MSWIN 1401 if (!keep_termcap) 1402 starttermcap(); // don't want a message box here 1403 #endif 1404 msg_puts(_("[No write since last change]\n")); 1405 #ifdef FEAT_GUI_MSWIN 1406 if (!keep_termcap) 1407 stoptermcap(); 1408 #endif 1409 break; 1410 } 1411 1412 // This windgoto is required for when the '\n' resulted in a "delete line 1413 // 1" command to the terminal. 1414 if (!swapping_screen()) 1415 windgoto(msg_row, msg_col); 1416 cursor_on(); 1417 (void)call_shell(cmd, SHELL_COOKED | flags); 1418 did_check_timestamps = FALSE; 1419 need_check_timestamps = TRUE; 1420 1421 /* 1422 * put the message cursor at the end of the screen, avoids wait_return() 1423 * to overwrite the text that the external command showed 1424 */ 1425 if (!swapping_screen()) 1426 { 1427 msg_row = Rows - 1; 1428 msg_col = 0; 1429 } 1430 1431 if (autocmd_busy) 1432 { 1433 if (msg_silent == 0) 1434 redraw_later_clear(); 1435 } 1436 else 1437 { 1438 /* 1439 * For ":sh" there is no need to call wait_return(), just redraw. 1440 * Also for the Win32 GUI (the output is in a console window). 1441 * Otherwise there is probably text on the screen that the user wants 1442 * to read before redrawing, so call wait_return(). 1443 */ 1444 #if !defined(FEAT_GUI_MSWIN) || defined(VIMDLL) 1445 # ifdef VIMDLL 1446 if (!gui.in_use) 1447 # endif 1448 { 1449 if (cmd == NULL 1450 # ifdef MSWIN 1451 || (keep_termcap && !need_wait_return) 1452 # endif 1453 ) 1454 { 1455 if (msg_silent == 0) 1456 redraw_later_clear(); 1457 need_wait_return = FALSE; 1458 } 1459 else 1460 { 1461 /* 1462 * If we switch screens when starttermcap() is called, we 1463 * really want to wait for "hit return to continue". 1464 */ 1465 save_nwr = no_wait_return; 1466 if (swapping_screen()) 1467 no_wait_return = FALSE; 1468 # ifdef AMIGA 1469 wait_return(term_console ? -1 : msg_silent == 0); // see below 1470 # else 1471 wait_return(msg_silent == 0); 1472 # endif 1473 no_wait_return = save_nwr; 1474 } 1475 } 1476 #endif // FEAT_GUI_MSWIN 1477 1478 #ifdef MSWIN 1479 if (!keep_termcap) // if keep_termcap is TRUE didn't stop termcap 1480 #endif 1481 starttermcap(); // start termcap if not done by wait_return() 1482 1483 /* 1484 * In an Amiga window redrawing is caused by asking the window size. 1485 * If we got an interrupt this will not work. The chance that the 1486 * window size is wrong is very small, but we need to redraw the 1487 * screen. Don't do this if ':' hit in wait_return(). THIS IS UGLY 1488 * but it saves an extra redraw. 1489 */ 1490 #ifdef AMIGA 1491 if (skip_redraw) // ':' hit in wait_return() 1492 { 1493 if (msg_silent == 0) 1494 redraw_later_clear(); 1495 } 1496 else if (term_console) 1497 { 1498 OUT_STR(IF_EB("\033[0 q", ESC_STR "[0 q")); // get window size 1499 if (got_int && msg_silent == 0) 1500 redraw_later_clear(); // if got_int is TRUE, redraw needed 1501 else 1502 must_redraw = 0; // no extra redraw needed 1503 } 1504 #endif 1505 } 1506 1507 // display any error messages now 1508 display_errors(); 1509 1510 apply_autocmds(EVENT_SHELLCMDPOST, NULL, NULL, FALSE, curbuf); 1511 } 1512 1513 #if !defined(UNIX) 1514 static char_u * 1515 find_pipe(char_u *cmd) 1516 { 1517 char_u *p; 1518 int inquote = FALSE; 1519 1520 for (p = cmd; *p != NUL; ++p) 1521 { 1522 if (!inquote && *p == '|') 1523 return p; 1524 if (*p == '"') 1525 inquote = !inquote; 1526 else if (rem_backslash(p)) 1527 ++p; 1528 } 1529 return NULL; 1530 } 1531 #endif 1532 1533 /* 1534 * Create a shell command from a command string, input redirection file and 1535 * output redirection file. 1536 * Returns an allocated string with the shell command, or NULL for failure. 1537 */ 1538 char_u * 1539 make_filter_cmd( 1540 char_u *cmd, // command 1541 char_u *itmp, // NULL or name of input file 1542 char_u *otmp) // NULL or name of output file 1543 { 1544 char_u *buf; 1545 long_u len; 1546 1547 #if defined(UNIX) 1548 int is_fish_shell; 1549 char_u *shell_name = get_isolated_shell_name(); 1550 1551 // Account for fish's different syntax for subshells 1552 is_fish_shell = (fnamecmp(shell_name, "fish") == 0); 1553 vim_free(shell_name); 1554 if (is_fish_shell) 1555 len = (long_u)STRLEN(cmd) + 13; // "begin; " + "; end" + NUL 1556 else 1557 #endif 1558 len = (long_u)STRLEN(cmd) + 3; // "()" + NUL 1559 if (itmp != NULL) 1560 len += (long_u)STRLEN(itmp) + 9; // " { < " + " } " 1561 if (otmp != NULL) 1562 len += (long_u)STRLEN(otmp) + (long_u)STRLEN(p_srr) + 2; // " " 1563 buf = alloc(len); 1564 if (buf == NULL) 1565 return NULL; 1566 1567 #if defined(UNIX) 1568 /* 1569 * Put braces around the command (for concatenated commands) when 1570 * redirecting input and/or output. 1571 */ 1572 if (itmp != NULL || otmp != NULL) 1573 { 1574 if (is_fish_shell) 1575 vim_snprintf((char *)buf, len, "begin; %s; end", (char *)cmd); 1576 else 1577 vim_snprintf((char *)buf, len, "(%s)", (char *)cmd); 1578 } 1579 else 1580 STRCPY(buf, cmd); 1581 if (itmp != NULL) 1582 { 1583 STRCAT(buf, " < "); 1584 STRCAT(buf, itmp); 1585 } 1586 #else 1587 // For shells that don't understand braces around commands, at least allow 1588 // the use of commands in a pipe. 1589 if (*p_sxe != NUL && *p_sxq == '(') 1590 { 1591 if (itmp != NULL || otmp != NULL) 1592 vim_snprintf((char *)buf, len, "(%s)", (char *)cmd); 1593 else 1594 STRCPY(buf, cmd); 1595 if (itmp != NULL) 1596 { 1597 STRCAT(buf, " < "); 1598 STRCAT(buf, itmp); 1599 } 1600 } 1601 else 1602 { 1603 STRCPY(buf, cmd); 1604 if (itmp != NULL) 1605 { 1606 char_u *p; 1607 1608 // If there is a pipe, we have to put the '<' in front of it. 1609 // Don't do this when 'shellquote' is not empty, otherwise the 1610 // redirection would be inside the quotes. 1611 if (*p_shq == NUL) 1612 { 1613 p = find_pipe(buf); 1614 if (p != NULL) 1615 *p = NUL; 1616 } 1617 STRCAT(buf, " <"); // " < " causes problems on Amiga 1618 STRCAT(buf, itmp); 1619 if (*p_shq == NUL) 1620 { 1621 p = find_pipe(cmd); 1622 if (p != NULL) 1623 { 1624 STRCAT(buf, " "); // insert a space before the '|' for DOS 1625 STRCAT(buf, p); 1626 } 1627 } 1628 } 1629 } 1630 #endif 1631 if (otmp != NULL) 1632 append_redir(buf, (int)len, p_srr, otmp); 1633 1634 return buf; 1635 } 1636 1637 /* 1638 * Append output redirection for file "fname" to the end of string buffer 1639 * "buf[buflen]" 1640 * Works with the 'shellredir' and 'shellpipe' options. 1641 * The caller should make sure that there is enough room: 1642 * STRLEN(opt) + STRLEN(fname) + 3 1643 */ 1644 void 1645 append_redir( 1646 char_u *buf, 1647 int buflen, 1648 char_u *opt, 1649 char_u *fname) 1650 { 1651 char_u *p; 1652 char_u *end; 1653 1654 end = buf + STRLEN(buf); 1655 // find "%s" 1656 for (p = opt; (p = vim_strchr(p, '%')) != NULL; ++p) 1657 { 1658 if (p[1] == 's') // found %s 1659 break; 1660 if (p[1] == '%') // skip %% 1661 ++p; 1662 } 1663 if (p != NULL) 1664 { 1665 #ifdef MSWIN 1666 *end++ = ' '; // not really needed? Not with sh, ksh or bash 1667 #endif 1668 vim_snprintf((char *)end, (size_t)(buflen - (end - buf)), 1669 (char *)opt, (char *)fname); 1670 } 1671 else 1672 vim_snprintf((char *)end, (size_t)(buflen - (end - buf)), 1673 #ifdef FEAT_QUICKFIX 1674 " %s %s", 1675 #else 1676 " %s%s", // " > %s" causes problems on Amiga 1677 #endif 1678 (char *)opt, (char *)fname); 1679 } 1680 1681 /* 1682 * Return the current time in seconds. Calls time(), unless test_settime() 1683 * was used. 1684 */ 1685 time_T 1686 vim_time(void) 1687 { 1688 # ifdef FEAT_EVAL 1689 return time_for_testing == 0 ? time(NULL) : time_for_testing; 1690 # else 1691 return time(NULL); 1692 # endif 1693 } 1694 1695 /* 1696 * Implementation of ":fixdel", also used by get_stty(). 1697 * <BS> resulting <Del> 1698 * ^? ^H 1699 * not ^? ^? 1700 */ 1701 void 1702 do_fixdel(exarg_T *eap UNUSED) 1703 { 1704 char_u *p; 1705 1706 p = find_termcode((char_u *)"kb"); 1707 add_termcode((char_u *)"kD", p != NULL 1708 && *p == DEL ? (char_u *)CTRL_H_STR : DEL_STR, FALSE); 1709 } 1710 1711 void 1712 print_line_no_prefix( 1713 linenr_T lnum, 1714 int use_number, 1715 int list) 1716 { 1717 char numbuf[30]; 1718 1719 if (curwin->w_p_nu || use_number) 1720 { 1721 vim_snprintf(numbuf, sizeof(numbuf), 1722 "%*ld ", number_width(curwin), (long)lnum); 1723 msg_puts_attr(numbuf, HL_ATTR(HLF_N)); // Highlight line nrs 1724 } 1725 msg_prt_line(ml_get(lnum), list); 1726 } 1727 1728 /* 1729 * Print a text line. Also in silent mode ("ex -s"). 1730 */ 1731 void 1732 print_line(linenr_T lnum, int use_number, int list) 1733 { 1734 int save_silent = silent_mode; 1735 1736 // apply :filter /pat/ 1737 if (message_filtered(ml_get(lnum))) 1738 return; 1739 1740 msg_start(); 1741 silent_mode = FALSE; 1742 info_message = TRUE; // use mch_msg(), not mch_errmsg() 1743 print_line_no_prefix(lnum, use_number, list); 1744 if (save_silent) 1745 { 1746 msg_putchar('\n'); 1747 cursor_on(); // msg_start() switches it off 1748 out_flush(); 1749 silent_mode = save_silent; 1750 } 1751 info_message = FALSE; 1752 } 1753 1754 int 1755 rename_buffer(char_u *new_fname) 1756 { 1757 char_u *fname, *sfname, *xfname; 1758 buf_T *buf; 1759 1760 buf = curbuf; 1761 apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf); 1762 // buffer changed, don't change name now 1763 if (buf != curbuf) 1764 return FAIL; 1765 #ifdef FEAT_EVAL 1766 if (aborting()) // autocmds may abort script processing 1767 return FAIL; 1768 #endif 1769 /* 1770 * The name of the current buffer will be changed. 1771 * A new (unlisted) buffer entry needs to be made to hold the old file 1772 * name, which will become the alternate file name. 1773 * But don't set the alternate file name if the buffer didn't have a 1774 * name. 1775 */ 1776 fname = curbuf->b_ffname; 1777 sfname = curbuf->b_sfname; 1778 xfname = curbuf->b_fname; 1779 curbuf->b_ffname = NULL; 1780 curbuf->b_sfname = NULL; 1781 if (setfname(curbuf, new_fname, NULL, TRUE) == FAIL) 1782 { 1783 curbuf->b_ffname = fname; 1784 curbuf->b_sfname = sfname; 1785 return FAIL; 1786 } 1787 curbuf->b_flags |= BF_NOTEDITED; 1788 if (xfname != NULL && *xfname != NUL) 1789 { 1790 buf = buflist_new(fname, xfname, curwin->w_cursor.lnum, 0); 1791 if (buf != NULL && !cmdmod.keepalt) 1792 curwin->w_alt_fnum = buf->b_fnum; 1793 } 1794 vim_free(fname); 1795 vim_free(sfname); 1796 apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf); 1797 1798 // Change directories when the 'acd' option is set. 1799 DO_AUTOCHDIR; 1800 return OK; 1801 } 1802 1803 /* 1804 * ":file[!] [fname]". 1805 */ 1806 void 1807 ex_file(exarg_T *eap) 1808 { 1809 // ":0file" removes the file name. Check for illegal uses ":3file", 1810 // "0file name", etc. 1811 if (eap->addr_count > 0 1812 && (*eap->arg != NUL 1813 || eap->line2 > 0 1814 || eap->addr_count > 1)) 1815 { 1816 emsg(_(e_invarg)); 1817 return; 1818 } 1819 1820 if (*eap->arg != NUL || eap->addr_count == 1) 1821 { 1822 if (rename_buffer(eap->arg) == FAIL) 1823 return; 1824 redraw_tabline = TRUE; 1825 } 1826 1827 // print file name if no argument or 'F' is not in 'shortmess' 1828 if (*eap->arg == NUL || !shortmess(SHM_FILEINFO)) 1829 fileinfo(FALSE, FALSE, eap->forceit); 1830 } 1831 1832 /* 1833 * ":update". 1834 */ 1835 void 1836 ex_update(exarg_T *eap) 1837 { 1838 if (curbufIsChanged()) 1839 (void)do_write(eap); 1840 } 1841 1842 /* 1843 * ":write" and ":saveas". 1844 */ 1845 void 1846 ex_write(exarg_T *eap) 1847 { 1848 if (eap->cmdidx == CMD_saveas) 1849 { 1850 // :saveas does not take a range, uses all lines. 1851 eap->line1 = 1; 1852 eap->line2 = curbuf->b_ml.ml_line_count; 1853 } 1854 1855 if (eap->usefilter) // input lines to shell command 1856 do_bang(1, eap, FALSE, TRUE, FALSE); 1857 else 1858 (void)do_write(eap); 1859 } 1860 1861 /* 1862 * write current buffer to file 'eap->arg' 1863 * if 'eap->append' is TRUE, append to the file 1864 * 1865 * if *eap->arg == NUL write to current file 1866 * 1867 * return FAIL for failure, OK otherwise 1868 */ 1869 int 1870 do_write(exarg_T *eap) 1871 { 1872 int other; 1873 char_u *fname = NULL; // init to shut up gcc 1874 char_u *ffname; 1875 int retval = FAIL; 1876 char_u *free_fname = NULL; 1877 #ifdef FEAT_BROWSE 1878 char_u *browse_file = NULL; 1879 #endif 1880 buf_T *alt_buf = NULL; 1881 int name_was_missing; 1882 1883 if (not_writing()) // check 'write' option 1884 return FAIL; 1885 1886 ffname = eap->arg; 1887 #ifdef FEAT_BROWSE 1888 if (cmdmod.browse && !exiting) 1889 { 1890 browse_file = do_browse(BROWSE_SAVE, (char_u *)_("Save As"), ffname, 1891 NULL, NULL, NULL, curbuf); 1892 if (browse_file == NULL) 1893 goto theend; 1894 ffname = browse_file; 1895 } 1896 #endif 1897 if (*ffname == NUL) 1898 { 1899 if (eap->cmdidx == CMD_saveas) 1900 { 1901 emsg(_(e_argreq)); 1902 goto theend; 1903 } 1904 other = FALSE; 1905 } 1906 else 1907 { 1908 fname = ffname; 1909 free_fname = fix_fname(ffname); 1910 /* 1911 * When out-of-memory, keep unexpanded file name, because we MUST be 1912 * able to write the file in this situation. 1913 */ 1914 if (free_fname != NULL) 1915 ffname = free_fname; 1916 other = otherfile(ffname); 1917 } 1918 1919 /* 1920 * If we have a new file, put its name in the list of alternate file names. 1921 */ 1922 if (other) 1923 { 1924 if (vim_strchr(p_cpo, CPO_ALTWRITE) != NULL 1925 || eap->cmdidx == CMD_saveas) 1926 alt_buf = setaltfname(ffname, fname, (linenr_T)1); 1927 else 1928 alt_buf = buflist_findname(ffname); 1929 if (alt_buf != NULL && alt_buf->b_ml.ml_mfp != NULL) 1930 { 1931 // Overwriting a file that is loaded in another buffer is not a 1932 // good idea. 1933 emsg(_(e_bufloaded)); 1934 goto theend; 1935 } 1936 } 1937 1938 /* 1939 * Writing to the current file is not allowed in readonly mode 1940 * and a file name is required. 1941 * "nofile" and "nowrite" buffers cannot be written implicitly either. 1942 */ 1943 if (!other && ( 1944 #ifdef FEAT_QUICKFIX 1945 bt_dontwrite_msg(curbuf) || 1946 #endif 1947 check_fname() == FAIL || check_readonly(&eap->forceit, curbuf))) 1948 goto theend; 1949 1950 if (!other) 1951 { 1952 ffname = curbuf->b_ffname; 1953 fname = curbuf->b_fname; 1954 /* 1955 * Not writing the whole file is only allowed with '!'. 1956 */ 1957 if ( (eap->line1 != 1 1958 || eap->line2 != curbuf->b_ml.ml_line_count) 1959 && !eap->forceit 1960 && !eap->append 1961 && !p_wa) 1962 { 1963 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1964 if (p_confirm || cmdmod.confirm) 1965 { 1966 if (vim_dialog_yesno(VIM_QUESTION, NULL, 1967 (char_u *)_("Write partial file?"), 2) != VIM_YES) 1968 goto theend; 1969 eap->forceit = TRUE; 1970 } 1971 else 1972 #endif 1973 { 1974 emsg(_("E140: Use ! to write partial buffer")); 1975 goto theend; 1976 } 1977 } 1978 } 1979 1980 if (check_overwrite(eap, curbuf, fname, ffname, other) == OK) 1981 { 1982 if (eap->cmdidx == CMD_saveas && alt_buf != NULL) 1983 { 1984 buf_T *was_curbuf = curbuf; 1985 1986 apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf); 1987 apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, alt_buf); 1988 #ifdef FEAT_EVAL 1989 if (curbuf != was_curbuf || aborting()) 1990 #else 1991 if (curbuf != was_curbuf) 1992 #endif 1993 { 1994 // buffer changed, don't change name now 1995 retval = FAIL; 1996 goto theend; 1997 } 1998 // Exchange the file names for the current and the alternate 1999 // buffer. This makes it look like we are now editing the buffer 2000 // under the new name. Must be done before buf_write(), because 2001 // if there is no file name and 'cpo' contains 'F', it will set 2002 // the file name. 2003 fname = alt_buf->b_fname; 2004 alt_buf->b_fname = curbuf->b_fname; 2005 curbuf->b_fname = fname; 2006 fname = alt_buf->b_ffname; 2007 alt_buf->b_ffname = curbuf->b_ffname; 2008 curbuf->b_ffname = fname; 2009 fname = alt_buf->b_sfname; 2010 alt_buf->b_sfname = curbuf->b_sfname; 2011 curbuf->b_sfname = fname; 2012 buf_name_changed(curbuf); 2013 2014 apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf); 2015 apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, alt_buf); 2016 if (!alt_buf->b_p_bl) 2017 { 2018 alt_buf->b_p_bl = TRUE; 2019 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, alt_buf); 2020 } 2021 #ifdef FEAT_EVAL 2022 if (curbuf != was_curbuf || aborting()) 2023 #else 2024 if (curbuf != was_curbuf) 2025 #endif 2026 { 2027 // buffer changed, don't write the file 2028 retval = FAIL; 2029 goto theend; 2030 } 2031 2032 // If 'filetype' was empty try detecting it now. 2033 if (*curbuf->b_p_ft == NUL) 2034 { 2035 if (au_has_group((char_u *)"filetypedetect")) 2036 (void)do_doautocmd((char_u *)"filetypedetect BufRead", 2037 TRUE, NULL); 2038 do_modelines(0); 2039 } 2040 2041 // Autocommands may have changed buffer names, esp. when 2042 // 'autochdir' is set. 2043 fname = curbuf->b_sfname; 2044 } 2045 2046 name_was_missing = curbuf->b_ffname == NULL; 2047 2048 retval = buf_write(curbuf, ffname, fname, eap->line1, eap->line2, 2049 eap, eap->append, eap->forceit, TRUE, FALSE); 2050 2051 // After ":saveas fname" reset 'readonly'. 2052 if (eap->cmdidx == CMD_saveas) 2053 { 2054 if (retval == OK) 2055 { 2056 curbuf->b_p_ro = FALSE; 2057 redraw_tabline = TRUE; 2058 } 2059 } 2060 2061 // Change directories when the 'acd' option is set and the file name 2062 // got changed or set. 2063 if (eap->cmdidx == CMD_saveas || name_was_missing) 2064 DO_AUTOCHDIR; 2065 } 2066 2067 theend: 2068 #ifdef FEAT_BROWSE 2069 vim_free(browse_file); 2070 #endif 2071 vim_free(free_fname); 2072 return retval; 2073 } 2074 2075 /* 2076 * Check if it is allowed to overwrite a file. If b_flags has BF_NOTEDITED, 2077 * BF_NEW or BF_READERR, check for overwriting current file. 2078 * May set eap->forceit if a dialog says it's OK to overwrite. 2079 * Return OK if it's OK, FAIL if it is not. 2080 */ 2081 int 2082 check_overwrite( 2083 exarg_T *eap, 2084 buf_T *buf, 2085 char_u *fname, // file name to be used (can differ from 2086 // buf->ffname) 2087 char_u *ffname, // full path version of fname 2088 int other) // writing under other name 2089 { 2090 /* 2091 * write to other file or b_flags set or not writing the whole file: 2092 * overwriting only allowed with '!' 2093 */ 2094 if ( (other 2095 || (buf->b_flags & BF_NOTEDITED) 2096 || ((buf->b_flags & BF_NEW) 2097 && vim_strchr(p_cpo, CPO_OVERNEW) == NULL) 2098 || (buf->b_flags & BF_READERR)) 2099 && !p_wa 2100 #ifdef FEAT_QUICKFIX 2101 && !bt_nofilename(buf) 2102 #endif 2103 && vim_fexists(ffname)) 2104 { 2105 if (!eap->forceit && !eap->append) 2106 { 2107 #ifdef UNIX 2108 // with UNIX it is possible to open a directory 2109 if (mch_isdir(ffname)) 2110 { 2111 semsg(_(e_isadir2), ffname); 2112 return FAIL; 2113 } 2114 #endif 2115 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 2116 if (p_confirm || cmdmod.confirm) 2117 { 2118 char_u buff[DIALOG_MSG_SIZE]; 2119 2120 dialog_msg(buff, _("Overwrite existing file \"%s\"?"), fname); 2121 if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) != VIM_YES) 2122 return FAIL; 2123 eap->forceit = TRUE; 2124 } 2125 else 2126 #endif 2127 { 2128 emsg(_(e_exists)); 2129 return FAIL; 2130 } 2131 } 2132 2133 // For ":w! filename" check that no swap file exists for "filename". 2134 if (other && !emsg_silent) 2135 { 2136 char_u *dir; 2137 char_u *p; 2138 int r; 2139 char_u *swapname; 2140 2141 // We only try the first entry in 'directory', without checking if 2142 // it's writable. If the "." directory is not writable the write 2143 // will probably fail anyway. 2144 // Use 'shortname' of the current buffer, since there is no buffer 2145 // for the written file. 2146 if (*p_dir == NUL) 2147 { 2148 dir = alloc(5); 2149 if (dir == NULL) 2150 return FAIL; 2151 STRCPY(dir, "."); 2152 } 2153 else 2154 { 2155 dir = alloc(MAXPATHL); 2156 if (dir == NULL) 2157 return FAIL; 2158 p = p_dir; 2159 copy_option_part(&p, dir, MAXPATHL, ","); 2160 } 2161 swapname = makeswapname(fname, ffname, curbuf, dir); 2162 vim_free(dir); 2163 r = vim_fexists(swapname); 2164 if (r) 2165 { 2166 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 2167 if (p_confirm || cmdmod.confirm) 2168 { 2169 char_u buff[DIALOG_MSG_SIZE]; 2170 2171 dialog_msg(buff, 2172 _("Swap file \"%s\" exists, overwrite anyway?"), 2173 swapname); 2174 if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) 2175 != VIM_YES) 2176 { 2177 vim_free(swapname); 2178 return FAIL; 2179 } 2180 eap->forceit = TRUE; 2181 } 2182 else 2183 #endif 2184 { 2185 semsg(_("E768: Swap file exists: %s (:silent! overrides)"), 2186 swapname); 2187 vim_free(swapname); 2188 return FAIL; 2189 } 2190 } 2191 vim_free(swapname); 2192 } 2193 } 2194 return OK; 2195 } 2196 2197 /* 2198 * Handle ":wnext", ":wNext" and ":wprevious" commands. 2199 */ 2200 void 2201 ex_wnext(exarg_T *eap) 2202 { 2203 int i; 2204 2205 if (eap->cmd[1] == 'n') 2206 i = curwin->w_arg_idx + (int)eap->line2; 2207 else 2208 i = curwin->w_arg_idx - (int)eap->line2; 2209 eap->line1 = 1; 2210 eap->line2 = curbuf->b_ml.ml_line_count; 2211 if (do_write(eap) != FAIL) 2212 do_argfile(eap, i); 2213 } 2214 2215 /* 2216 * ":wall", ":wqall" and ":xall": Write all changed files (and exit). 2217 */ 2218 void 2219 do_wqall(exarg_T *eap) 2220 { 2221 buf_T *buf; 2222 int error = 0; 2223 int save_forceit = eap->forceit; 2224 2225 if (eap->cmdidx == CMD_xall || eap->cmdidx == CMD_wqall) 2226 exiting = TRUE; 2227 2228 FOR_ALL_BUFFERS(buf) 2229 { 2230 #ifdef FEAT_TERMINAL 2231 if (exiting && term_job_running(buf->b_term)) 2232 { 2233 no_write_message_nobang(buf); 2234 ++error; 2235 } 2236 else 2237 #endif 2238 if (bufIsChanged(buf) && !bt_dontwrite(buf)) 2239 { 2240 /* 2241 * Check if there is a reason the buffer cannot be written: 2242 * 1. if the 'write' option is set 2243 * 2. if there is no file name (even after browsing) 2244 * 3. if the 'readonly' is set (even after a dialog) 2245 * 4. if overwriting is allowed (even after a dialog) 2246 */ 2247 if (not_writing()) 2248 { 2249 ++error; 2250 break; 2251 } 2252 #ifdef FEAT_BROWSE 2253 // ":browse wall": ask for file name if there isn't one 2254 if (buf->b_ffname == NULL && cmdmod.browse) 2255 browse_save_fname(buf); 2256 #endif 2257 if (buf->b_ffname == NULL) 2258 { 2259 semsg(_("E141: No file name for buffer %ld"), (long)buf->b_fnum); 2260 ++error; 2261 } 2262 else if (check_readonly(&eap->forceit, buf) 2263 || check_overwrite(eap, buf, buf->b_fname, buf->b_ffname, 2264 FALSE) == FAIL) 2265 { 2266 ++error; 2267 } 2268 else 2269 { 2270 bufref_T bufref; 2271 2272 set_bufref(&bufref, buf); 2273 if (buf_write_all(buf, eap->forceit) == FAIL) 2274 ++error; 2275 // an autocommand may have deleted the buffer 2276 if (!bufref_valid(&bufref)) 2277 buf = firstbuf; 2278 } 2279 eap->forceit = save_forceit; // check_overwrite() may set it 2280 } 2281 } 2282 if (exiting) 2283 { 2284 if (!error) 2285 getout(0); // exit Vim 2286 not_exiting(); 2287 } 2288 } 2289 2290 /* 2291 * Check the 'write' option. 2292 * Return TRUE and give a message when it's not set. 2293 */ 2294 static int 2295 not_writing(void) 2296 { 2297 if (p_write) 2298 return FALSE; 2299 emsg(_("E142: File not written: Writing is disabled by 'write' option")); 2300 return TRUE; 2301 } 2302 2303 /* 2304 * Check if a buffer is read-only (either 'readonly' option is set or file is 2305 * read-only). Ask for overruling in a dialog. Return TRUE and give an error 2306 * message when the buffer is readonly. 2307 */ 2308 static int 2309 check_readonly(int *forceit, buf_T *buf) 2310 { 2311 stat_T st; 2312 2313 // Handle a file being readonly when the 'readonly' option is set or when 2314 // the file exists and permissions are read-only. 2315 // We will send 0777 to check_file_readonly(), as the "perm" variable is 2316 // important for device checks but not here. 2317 if (!*forceit && (buf->b_p_ro 2318 || (mch_stat((char *)buf->b_ffname, &st) >= 0 2319 && check_file_readonly(buf->b_ffname, 0777)))) 2320 { 2321 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 2322 if ((p_confirm || cmdmod.confirm) && buf->b_fname != NULL) 2323 { 2324 char_u buff[DIALOG_MSG_SIZE]; 2325 2326 if (buf->b_p_ro) 2327 dialog_msg(buff, _("'readonly' option is set for \"%s\".\nDo you wish to write anyway?"), 2328 buf->b_fname); 2329 else 2330 dialog_msg(buff, _("File permissions of \"%s\" are read-only.\nIt may still be possible to write it.\nDo you wish to try?"), 2331 buf->b_fname); 2332 2333 if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) == VIM_YES) 2334 { 2335 // Set forceit, to force the writing of a readonly file 2336 *forceit = TRUE; 2337 return FALSE; 2338 } 2339 else 2340 return TRUE; 2341 } 2342 else 2343 #endif 2344 if (buf->b_p_ro) 2345 emsg(_(e_readonly)); 2346 else 2347 semsg(_("E505: \"%s\" is read-only (add ! to override)"), 2348 buf->b_fname); 2349 return TRUE; 2350 } 2351 2352 return FALSE; 2353 } 2354 2355 /* 2356 * Try to abandon the current file and edit a new or existing file. 2357 * "fnum" is the number of the file, if zero use "ffname_arg"/"sfname_arg". 2358 * "lnum" is the line number for the cursor in the new file (if non-zero). 2359 * 2360 * Return: 2361 * GETFILE_ERROR for "normal" error, 2362 * GETFILE_NOT_WRITTEN for "not written" error, 2363 * GETFILE_SAME_FILE for success 2364 * GETFILE_OPEN_OTHER for successfully opening another file. 2365 */ 2366 int 2367 getfile( 2368 int fnum, 2369 char_u *ffname_arg, 2370 char_u *sfname_arg, 2371 int setpm, 2372 linenr_T lnum, 2373 int forceit) 2374 { 2375 char_u *ffname = ffname_arg; 2376 char_u *sfname = sfname_arg; 2377 int other; 2378 int retval; 2379 char_u *free_me = NULL; 2380 2381 if (text_locked()) 2382 return GETFILE_ERROR; 2383 if (curbuf_locked()) 2384 return GETFILE_ERROR; 2385 2386 if (fnum == 0) 2387 { 2388 // make ffname full path, set sfname 2389 fname_expand(curbuf, &ffname, &sfname); 2390 other = otherfile(ffname); 2391 free_me = ffname; // has been allocated, free() later 2392 } 2393 else 2394 other = (fnum != curbuf->b_fnum); 2395 2396 if (other) 2397 ++no_wait_return; // don't wait for autowrite message 2398 if (other && !forceit && curbuf->b_nwindows == 1 && !buf_hide(curbuf) 2399 && curbufIsChanged() && autowrite(curbuf, forceit) == FAIL) 2400 { 2401 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 2402 if (p_confirm && p_write) 2403 dialog_changed(curbuf, FALSE); 2404 if (curbufIsChanged()) 2405 #endif 2406 { 2407 if (other) 2408 --no_wait_return; 2409 no_write_message(); 2410 retval = GETFILE_NOT_WRITTEN; // file has been changed 2411 goto theend; 2412 } 2413 } 2414 if (other) 2415 --no_wait_return; 2416 if (setpm) 2417 setpcmark(); 2418 if (!other) 2419 { 2420 if (lnum != 0) 2421 curwin->w_cursor.lnum = lnum; 2422 check_cursor_lnum(); 2423 beginline(BL_SOL | BL_FIX); 2424 retval = GETFILE_SAME_FILE; // it's in the same file 2425 } 2426 else if (do_ecmd(fnum, ffname, sfname, NULL, lnum, 2427 (buf_hide(curbuf) ? ECMD_HIDE : 0) + (forceit ? ECMD_FORCEIT : 0), 2428 curwin) == OK) 2429 retval = GETFILE_OPEN_OTHER; // opened another file 2430 else 2431 retval = GETFILE_ERROR; // error encountered 2432 2433 theend: 2434 vim_free(free_me); 2435 return retval; 2436 } 2437 2438 /* 2439 * start editing a new file 2440 * 2441 * fnum: file number; if zero use ffname/sfname 2442 * ffname: the file name 2443 * - full path if sfname used, 2444 * - any file name if sfname is NULL 2445 * - empty string to re-edit with the same file name (but may be 2446 * in a different directory) 2447 * - NULL to start an empty buffer 2448 * sfname: the short file name (or NULL) 2449 * eap: contains the command to be executed after loading the file and 2450 * forced 'ff' and 'fenc' 2451 * newlnum: if > 0: put cursor on this line number (if possible) 2452 * if ECMD_LASTL: use last position in loaded file 2453 * if ECMD_LAST: use last position in all files 2454 * if ECMD_ONE: use first line 2455 * flags: 2456 * ECMD_HIDE: if TRUE don't free the current buffer 2457 * ECMD_SET_HELP: set b_help flag of (new) buffer before opening file 2458 * ECMD_OLDBUF: use existing buffer if it exists 2459 * ECMD_FORCEIT: ! used for Ex command 2460 * ECMD_ADDBUF: don't edit, just add to buffer list 2461 * oldwin: Should be "curwin" when editing a new buffer in the current 2462 * window, NULL when splitting the window first. When not NULL info 2463 * of the previous buffer for "oldwin" is stored. 2464 * 2465 * return FAIL for failure, OK otherwise 2466 */ 2467 int 2468 do_ecmd( 2469 int fnum, 2470 char_u *ffname, 2471 char_u *sfname, 2472 exarg_T *eap, // can be NULL! 2473 linenr_T newlnum, 2474 int flags, 2475 win_T *oldwin) 2476 { 2477 int other_file; // TRUE if editing another file 2478 int oldbuf; // TRUE if using existing buffer 2479 int auto_buf = FALSE; // TRUE if autocommands brought us 2480 // into the buffer unexpectedly 2481 char_u *new_name = NULL; 2482 #if defined(FEAT_EVAL) 2483 int did_set_swapcommand = FALSE; 2484 #endif 2485 buf_T *buf; 2486 bufref_T bufref; 2487 bufref_T old_curbuf; 2488 char_u *free_fname = NULL; 2489 #ifdef FEAT_BROWSE 2490 char_u *browse_file = NULL; 2491 #endif 2492 int retval = FAIL; 2493 long n; 2494 pos_T orig_pos; 2495 linenr_T topline = 0; 2496 int newcol = -1; 2497 int solcol = -1; 2498 pos_T *pos; 2499 char_u *command = NULL; 2500 #ifdef FEAT_SPELL 2501 int did_get_winopts = FALSE; 2502 #endif 2503 int readfile_flags = 0; 2504 int did_inc_redrawing_disabled = FALSE; 2505 long *so_ptr = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so; 2506 2507 if (eap != NULL) 2508 command = eap->do_ecmd_cmd; 2509 set_bufref(&old_curbuf, curbuf); 2510 2511 if (fnum != 0) 2512 { 2513 if (fnum == curbuf->b_fnum) // file is already being edited 2514 return OK; // nothing to do 2515 other_file = TRUE; 2516 } 2517 else 2518 { 2519 #ifdef FEAT_BROWSE 2520 if (cmdmod.browse && !exiting) 2521 { 2522 if ( 2523 # ifdef FEAT_GUI 2524 !gui.in_use && 2525 # endif 2526 au_has_group((char_u *)"FileExplorer")) 2527 { 2528 // No browsing supported but we do have the file explorer: 2529 // Edit the directory. 2530 if (ffname == NULL || !mch_isdir(ffname)) 2531 ffname = (char_u *)"."; 2532 } 2533 else 2534 { 2535 browse_file = do_browse(0, (char_u *)_("Edit File"), ffname, 2536 NULL, NULL, NULL, curbuf); 2537 if (browse_file == NULL) 2538 goto theend; 2539 ffname = browse_file; 2540 } 2541 } 2542 #endif 2543 // if no short name given, use ffname for short name 2544 if (sfname == NULL) 2545 sfname = ffname; 2546 #ifdef USE_FNAME_CASE 2547 if (sfname != NULL) 2548 fname_case(sfname, 0); // set correct case for sfname 2549 #endif 2550 2551 if ((flags & ECMD_ADDBUF) && (ffname == NULL || *ffname == NUL)) 2552 goto theend; 2553 2554 if (ffname == NULL) 2555 other_file = TRUE; 2556 // there is no file name 2557 else if (*ffname == NUL && curbuf->b_ffname == NULL) 2558 other_file = FALSE; 2559 else 2560 { 2561 if (*ffname == NUL) // re-edit with same file name 2562 { 2563 ffname = curbuf->b_ffname; 2564 sfname = curbuf->b_fname; 2565 } 2566 free_fname = fix_fname(ffname); // may expand to full path name 2567 if (free_fname != NULL) 2568 ffname = free_fname; 2569 other_file = otherfile(ffname); 2570 } 2571 } 2572 2573 /* 2574 * if the file was changed we may not be allowed to abandon it 2575 * - if we are going to re-edit the same file 2576 * - or if we are the only window on this file and if ECMD_HIDE is FALSE 2577 */ 2578 if ( ((!other_file && !(flags & ECMD_OLDBUF)) 2579 || (curbuf->b_nwindows == 1 2580 && !(flags & (ECMD_HIDE | ECMD_ADDBUF)))) 2581 && check_changed(curbuf, (p_awa ? CCGD_AW : 0) 2582 | (other_file ? 0 : CCGD_MULTWIN) 2583 | ((flags & ECMD_FORCEIT) ? CCGD_FORCEIT : 0) 2584 | (eap == NULL ? 0 : CCGD_EXCMD))) 2585 { 2586 if (fnum == 0 && other_file && ffname != NULL) 2587 (void)setaltfname(ffname, sfname, newlnum < 0 ? 0 : newlnum); 2588 goto theend; 2589 } 2590 2591 /* 2592 * End Visual mode before switching to another buffer, so the text can be 2593 * copied into the GUI selection buffer. 2594 */ 2595 reset_VIsual(); 2596 2597 #if defined(FEAT_EVAL) 2598 if ((command != NULL || newlnum > (linenr_T)0) 2599 && *get_vim_var_str(VV_SWAPCOMMAND) == NUL) 2600 { 2601 int len; 2602 char_u *p; 2603 2604 // Set v:swapcommand for the SwapExists autocommands. 2605 if (command != NULL) 2606 len = (int)STRLEN(command) + 3; 2607 else 2608 len = 30; 2609 p = alloc(len); 2610 if (p != NULL) 2611 { 2612 if (command != NULL) 2613 vim_snprintf((char *)p, len, ":%s\r", command); 2614 else 2615 vim_snprintf((char *)p, len, "%ldG", (long)newlnum); 2616 set_vim_var_string(VV_SWAPCOMMAND, p, -1); 2617 did_set_swapcommand = TRUE; 2618 vim_free(p); 2619 } 2620 } 2621 #endif 2622 2623 /* 2624 * If we are starting to edit another file, open a (new) buffer. 2625 * Otherwise we re-use the current buffer. 2626 */ 2627 if (other_file) 2628 { 2629 if (!(flags & ECMD_ADDBUF)) 2630 { 2631 if (!cmdmod.keepalt) 2632 curwin->w_alt_fnum = curbuf->b_fnum; 2633 if (oldwin != NULL) 2634 buflist_altfpos(oldwin); 2635 } 2636 2637 if (fnum) 2638 buf = buflist_findnr(fnum); 2639 else 2640 { 2641 if (flags & ECMD_ADDBUF) 2642 { 2643 linenr_T tlnum = 1L; 2644 2645 if (command != NULL) 2646 { 2647 tlnum = atol((char *)command); 2648 if (tlnum <= 0) 2649 tlnum = 1L; 2650 } 2651 (void)buflist_new(ffname, sfname, tlnum, BLN_LISTED); 2652 goto theend; 2653 } 2654 buf = buflist_new(ffname, sfname, 0L, 2655 BLN_CURBUF | ((flags & ECMD_SET_HELP) ? 0 : BLN_LISTED)); 2656 2657 // autocommands may change curwin and curbuf 2658 if (oldwin != NULL) 2659 oldwin = curwin; 2660 set_bufref(&old_curbuf, curbuf); 2661 } 2662 if (buf == NULL) 2663 goto theend; 2664 if (buf->b_ml.ml_mfp == NULL) // no memfile yet 2665 { 2666 oldbuf = FALSE; 2667 } 2668 else // existing memfile 2669 { 2670 oldbuf = TRUE; 2671 set_bufref(&bufref, buf); 2672 (void)buf_check_timestamp(buf, FALSE); 2673 // Check if autocommands made the buffer invalid or changed the 2674 // current buffer. 2675 if (!bufref_valid(&bufref) || curbuf != old_curbuf.br_buf) 2676 goto theend; 2677 #ifdef FEAT_EVAL 2678 if (aborting()) // autocmds may abort script processing 2679 goto theend; 2680 #endif 2681 } 2682 2683 // May jump to last used line number for a loaded buffer or when asked 2684 // for explicitly 2685 if ((oldbuf && newlnum == ECMD_LASTL) || newlnum == ECMD_LAST) 2686 { 2687 pos = buflist_findfpos(buf); 2688 newlnum = pos->lnum; 2689 solcol = pos->col; 2690 } 2691 2692 /* 2693 * Make the (new) buffer the one used by the current window. 2694 * If the old buffer becomes unused, free it if ECMD_HIDE is FALSE. 2695 * If the current buffer was empty and has no file name, curbuf 2696 * is returned by buflist_new(), nothing to do here. 2697 */ 2698 if (buf != curbuf) 2699 { 2700 /* 2701 * Be careful: The autocommands may delete any buffer and change 2702 * the current buffer. 2703 * - If the buffer we are going to edit is deleted, give up. 2704 * - If the current buffer is deleted, prefer to load the new 2705 * buffer when loading a buffer is required. This avoids 2706 * loading another buffer which then must be closed again. 2707 * - If we ended up in the new buffer already, need to skip a few 2708 * things, set auto_buf. 2709 */ 2710 if (buf->b_fname != NULL) 2711 new_name = vim_strsave(buf->b_fname); 2712 set_bufref(&au_new_curbuf, buf); 2713 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 2714 if (!bufref_valid(&au_new_curbuf)) 2715 { 2716 // new buffer has been deleted 2717 delbuf_msg(new_name); // frees new_name 2718 goto theend; 2719 } 2720 #ifdef FEAT_EVAL 2721 if (aborting()) // autocmds may abort script processing 2722 { 2723 vim_free(new_name); 2724 goto theend; 2725 } 2726 #endif 2727 if (buf == curbuf) // already in new buffer 2728 auto_buf = TRUE; 2729 else 2730 { 2731 win_T *the_curwin = curwin; 2732 2733 // Set the w_closing flag to avoid that autocommands close the 2734 // window. And set b_locked for the same reason. 2735 the_curwin->w_closing = TRUE; 2736 ++buf->b_locked; 2737 2738 if (curbuf == old_curbuf.br_buf) 2739 buf_copy_options(buf, BCO_ENTER); 2740 2741 // Close the link to the current buffer. This will set 2742 // oldwin->w_buffer to NULL. 2743 u_sync(FALSE); 2744 close_buffer(oldwin, curbuf, 2745 (flags & ECMD_HIDE) ? 0 : DOBUF_UNLOAD, FALSE, FALSE); 2746 2747 the_curwin->w_closing = FALSE; 2748 --buf->b_locked; 2749 2750 #ifdef FEAT_EVAL 2751 // autocmds may abort script processing 2752 if (aborting() && curwin->w_buffer != NULL) 2753 { 2754 vim_free(new_name); 2755 goto theend; 2756 } 2757 #endif 2758 // Be careful again, like above. 2759 if (!bufref_valid(&au_new_curbuf)) 2760 { 2761 // new buffer has been deleted 2762 delbuf_msg(new_name); // frees new_name 2763 goto theend; 2764 } 2765 if (buf == curbuf) // already in new buffer 2766 auto_buf = TRUE; 2767 else 2768 { 2769 #ifdef FEAT_SYN_HL 2770 /* 2771 * <VN> We could instead free the synblock 2772 * and re-attach to buffer, perhaps. 2773 */ 2774 if (curwin->w_buffer == NULL 2775 || curwin->w_s == &(curwin->w_buffer->b_s)) 2776 curwin->w_s = &(buf->b_s); 2777 #endif 2778 curwin->w_buffer = buf; 2779 curbuf = buf; 2780 ++curbuf->b_nwindows; 2781 2782 // Set 'fileformat', 'binary' and 'fenc' when forced. 2783 if (!oldbuf && eap != NULL) 2784 { 2785 set_file_options(TRUE, eap); 2786 set_forced_fenc(eap); 2787 } 2788 } 2789 2790 // May get the window options from the last time this buffer 2791 // was in this window (or another window). If not used 2792 // before, reset the local window options to the global 2793 // values. Also restores old folding stuff. 2794 get_winopts(curbuf); 2795 #ifdef FEAT_SPELL 2796 did_get_winopts = TRUE; 2797 #endif 2798 } 2799 vim_free(new_name); 2800 au_new_curbuf.br_buf = NULL; 2801 au_new_curbuf.br_buf_free_count = 0; 2802 } 2803 2804 curwin->w_pcmark.lnum = 1; 2805 curwin->w_pcmark.col = 0; 2806 } 2807 else // !other_file 2808 { 2809 if ((flags & ECMD_ADDBUF) || check_fname() == FAIL) 2810 goto theend; 2811 2812 oldbuf = (flags & ECMD_OLDBUF); 2813 } 2814 2815 // Don't redraw until the cursor is in the right line, otherwise 2816 // autocommands may cause ml_get errors. 2817 ++RedrawingDisabled; 2818 did_inc_redrawing_disabled = TRUE; 2819 2820 buf = curbuf; 2821 if ((flags & ECMD_SET_HELP) || keep_help_flag) 2822 { 2823 prepare_help_buffer(); 2824 } 2825 else 2826 { 2827 // Don't make a buffer listed if it's a help buffer. Useful when 2828 // using CTRL-O to go back to a help file. 2829 if (!curbuf->b_help) 2830 set_buflisted(TRUE); 2831 } 2832 2833 // If autocommands change buffers under our fingers, forget about 2834 // editing the file. 2835 if (buf != curbuf) 2836 goto theend; 2837 #ifdef FEAT_EVAL 2838 if (aborting()) // autocmds may abort script processing 2839 goto theend; 2840 #endif 2841 2842 // Since we are starting to edit a file, consider the filetype to be 2843 // unset. Helps for when an autocommand changes files and expects syntax 2844 // highlighting to work in the other file. 2845 did_filetype = FALSE; 2846 2847 /* 2848 * other_file oldbuf 2849 * FALSE FALSE re-edit same file, buffer is re-used 2850 * FALSE TRUE re-edit same file, nothing changes 2851 * TRUE FALSE start editing new file, new buffer 2852 * TRUE TRUE start editing in existing buffer (nothing to do) 2853 */ 2854 if (!other_file && !oldbuf) // re-use the buffer 2855 { 2856 set_last_cursor(curwin); // may set b_last_cursor 2857 if (newlnum == ECMD_LAST || newlnum == ECMD_LASTL) 2858 { 2859 newlnum = curwin->w_cursor.lnum; 2860 solcol = curwin->w_cursor.col; 2861 } 2862 buf = curbuf; 2863 if (buf->b_fname != NULL) 2864 new_name = vim_strsave(buf->b_fname); 2865 else 2866 new_name = NULL; 2867 set_bufref(&bufref, buf); 2868 2869 if (p_ur < 0 || curbuf->b_ml.ml_line_count <= p_ur) 2870 { 2871 // Save all the text, so that the reload can be undone. 2872 // Sync first so that this is a separate undo-able action. 2873 u_sync(FALSE); 2874 if (u_savecommon(0, curbuf->b_ml.ml_line_count + 1, 0, TRUE) 2875 == FAIL) 2876 { 2877 vim_free(new_name); 2878 goto theend; 2879 } 2880 u_unchanged(curbuf); 2881 buf_freeall(curbuf, BFA_KEEP_UNDO); 2882 2883 // tell readfile() not to clear or reload undo info 2884 readfile_flags = READ_KEEP_UNDO; 2885 } 2886 else 2887 buf_freeall(curbuf, 0); // free all things for buffer 2888 2889 // If autocommands deleted the buffer we were going to re-edit, give 2890 // up and jump to the end. 2891 if (!bufref_valid(&bufref)) 2892 { 2893 delbuf_msg(new_name); // frees new_name 2894 goto theend; 2895 } 2896 vim_free(new_name); 2897 2898 // If autocommands change buffers under our fingers, forget about 2899 // re-editing the file. Should do the buf_clear_file(), but perhaps 2900 // the autocommands changed the buffer... 2901 if (buf != curbuf) 2902 goto theend; 2903 #ifdef FEAT_EVAL 2904 if (aborting()) // autocmds may abort script processing 2905 goto theend; 2906 #endif 2907 buf_clear_file(curbuf); 2908 curbuf->b_op_start.lnum = 0; // clear '[ and '] marks 2909 curbuf->b_op_end.lnum = 0; 2910 } 2911 2912 /* 2913 * If we get here we are sure to start editing 2914 */ 2915 // Assume success now 2916 retval = OK; 2917 2918 /* 2919 * Check if we are editing the w_arg_idx file in the argument list. 2920 */ 2921 check_arg_idx(curwin); 2922 2923 if (!auto_buf) 2924 { 2925 /* 2926 * Set cursor and init window before reading the file and executing 2927 * autocommands. This allows for the autocommands to position the 2928 * cursor. 2929 */ 2930 curwin_init(); 2931 2932 #ifdef FEAT_FOLDING 2933 // It's possible that all lines in the buffer changed. Need to update 2934 // automatic folding for all windows where it's used. 2935 { 2936 win_T *win; 2937 tabpage_T *tp; 2938 2939 FOR_ALL_TAB_WINDOWS(tp, win) 2940 if (win->w_buffer == curbuf) 2941 foldUpdateAll(win); 2942 } 2943 #endif 2944 2945 // Change directories when the 'acd' option is set. 2946 DO_AUTOCHDIR; 2947 2948 /* 2949 * Careful: open_buffer() and apply_autocmds() may change the current 2950 * buffer and window. 2951 */ 2952 orig_pos = curwin->w_cursor; 2953 topline = curwin->w_topline; 2954 if (!oldbuf) // need to read the file 2955 { 2956 #ifdef FEAT_PROP_POPUP 2957 // Don't use the swap-exists dialog for a popup window, can't edit 2958 // the buffer. 2959 if (WIN_IS_POPUP(curwin)) 2960 curbuf->b_flags |= BF_NO_SEA; 2961 #endif 2962 swap_exists_action = SEA_DIALOG; 2963 curbuf->b_flags |= BF_CHECK_RO; // set/reset 'ro' flag 2964 2965 /* 2966 * Open the buffer and read the file. 2967 */ 2968 #if defined(FEAT_EVAL) 2969 if (should_abort(open_buffer(FALSE, eap, readfile_flags))) 2970 retval = FAIL; 2971 #else 2972 (void)open_buffer(FALSE, eap, readfile_flags); 2973 #endif 2974 2975 #ifdef FEAT_PROP_POPUP 2976 curbuf->b_flags &= ~BF_NO_SEA; 2977 #endif 2978 if (swap_exists_action == SEA_QUIT) 2979 retval = FAIL; 2980 handle_swap_exists(&old_curbuf); 2981 } 2982 else 2983 { 2984 // Read the modelines, but only to set window-local options. Any 2985 // buffer-local options have already been set and may have been 2986 // changed by the user. 2987 do_modelines(OPT_WINONLY); 2988 2989 apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, 2990 &retval); 2991 apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf, 2992 &retval); 2993 } 2994 check_arg_idx(curwin); 2995 2996 // If autocommands change the cursor position or topline, we should 2997 // keep it. Also when it moves within a line. But not when it moves 2998 // to the first non-blank. 2999 if (!EQUAL_POS(curwin->w_cursor, orig_pos)) 3000 { 3001 char_u *text = ml_get_curline(); 3002 3003 if (curwin->w_cursor.lnum != orig_pos.lnum 3004 || curwin->w_cursor.col != (int)(skipwhite(text) - text)) 3005 { 3006 newlnum = curwin->w_cursor.lnum; 3007 newcol = curwin->w_cursor.col; 3008 } 3009 } 3010 if (curwin->w_topline == topline) 3011 topline = 0; 3012 3013 // Even when cursor didn't move we need to recompute topline. 3014 changed_line_abv_curs(); 3015 3016 #ifdef FEAT_TITLE 3017 maketitle(); 3018 #endif 3019 #if defined(FEAT_PROP_POPUP) && defined(FEAT_QUICKFIX) 3020 if (WIN_IS_POPUP(curwin) && curwin->w_p_pvw && retval != FAIL) 3021 popup_set_title(curwin); 3022 #endif 3023 } 3024 3025 #ifdef FEAT_DIFF 3026 // Tell the diff stuff that this buffer is new and/or needs updating. 3027 // Also needed when re-editing the same buffer, because unloading will 3028 // have removed it as a diff buffer. 3029 if (curwin->w_p_diff) 3030 { 3031 diff_buf_add(curbuf); 3032 diff_invalidate(curbuf); 3033 } 3034 #endif 3035 3036 #ifdef FEAT_SPELL 3037 // If the window options were changed may need to set the spell language. 3038 // Can only do this after the buffer has been properly setup. 3039 if (did_get_winopts && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) 3040 (void)did_set_spelllang(curwin); 3041 #endif 3042 3043 if (command == NULL) 3044 { 3045 if (newcol >= 0) // position set by autocommands 3046 { 3047 curwin->w_cursor.lnum = newlnum; 3048 curwin->w_cursor.col = newcol; 3049 check_cursor(); 3050 } 3051 else if (newlnum > 0) // line number from caller or old position 3052 { 3053 curwin->w_cursor.lnum = newlnum; 3054 check_cursor_lnum(); 3055 if (solcol >= 0 && !p_sol) 3056 { 3057 // 'sol' is off: Use last known column. 3058 curwin->w_cursor.col = solcol; 3059 check_cursor_col(); 3060 curwin->w_cursor.coladd = 0; 3061 curwin->w_set_curswant = TRUE; 3062 } 3063 else 3064 beginline(BL_SOL | BL_FIX); 3065 } 3066 else // no line number, go to last line in Ex mode 3067 { 3068 if (exmode_active) 3069 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; 3070 beginline(BL_WHITE | BL_FIX); 3071 } 3072 } 3073 3074 // Check if cursors in other windows on the same buffer are still valid 3075 check_lnums(FALSE); 3076 3077 /* 3078 * Did not read the file, need to show some info about the file. 3079 * Do this after setting the cursor. 3080 */ 3081 if (oldbuf && !auto_buf) 3082 { 3083 int msg_scroll_save = msg_scroll; 3084 3085 // Obey the 'O' flag in 'cpoptions': overwrite any previous file 3086 // message. 3087 if (shortmess(SHM_OVERALL) && !exiting && p_verbose == 0) 3088 msg_scroll = FALSE; 3089 if (!msg_scroll) // wait a bit when overwriting an error msg 3090 check_for_delay(FALSE); 3091 msg_start(); 3092 msg_scroll = msg_scroll_save; 3093 msg_scrolled_ign = TRUE; 3094 3095 if (!shortmess(SHM_FILEINFO)) 3096 fileinfo(FALSE, TRUE, FALSE); 3097 3098 msg_scrolled_ign = FALSE; 3099 } 3100 3101 #ifdef FEAT_VIMINFO 3102 curbuf->b_last_used = vim_time(); 3103 #endif 3104 3105 if (command != NULL) 3106 do_cmdline(command, NULL, NULL, DOCMD_VERBOSE); 3107 3108 #ifdef FEAT_KEYMAP 3109 if (curbuf->b_kmap_state & KEYMAP_INIT) 3110 (void)keymap_init(); 3111 #endif 3112 3113 --RedrawingDisabled; 3114 did_inc_redrawing_disabled = FALSE; 3115 if (!skip_redraw) 3116 { 3117 n = *so_ptr; 3118 if (topline == 0 && command == NULL) 3119 *so_ptr = 9999; // force cursor halfway the window 3120 update_topline(); 3121 curwin->w_scbind_pos = curwin->w_topline; 3122 *so_ptr = n; 3123 redraw_curbuf_later(NOT_VALID); // redraw this buffer later 3124 } 3125 3126 if (p_im) 3127 need_start_insertmode = TRUE; 3128 3129 #ifdef FEAT_AUTOCHDIR 3130 // Change directories when the 'acd' option is set and we aren't already in 3131 // that directory (should already be done above). Expect getcwd() to be 3132 // faster than calling shorten_fnames() unnecessarily. 3133 if (p_acd && curbuf->b_ffname != NULL) 3134 { 3135 char_u curdir[MAXPATHL]; 3136 char_u filedir[MAXPATHL]; 3137 3138 vim_strncpy(filedir, curbuf->b_ffname, MAXPATHL - 1); 3139 *gettail_sep(filedir) = NUL; 3140 if (mch_dirname(curdir, MAXPATHL) != FAIL 3141 && vim_fnamecmp(curdir, filedir) != 0) 3142 do_autochdir(); 3143 } 3144 #endif 3145 3146 #if defined(FEAT_NETBEANS_INTG) 3147 if (curbuf->b_ffname != NULL) 3148 { 3149 # ifdef FEAT_NETBEANS_INTG 3150 if ((flags & ECMD_SET_HELP) != ECMD_SET_HELP) 3151 netbeans_file_opened(curbuf); 3152 # endif 3153 } 3154 #endif 3155 3156 theend: 3157 if (did_inc_redrawing_disabled) 3158 --RedrawingDisabled; 3159 #if defined(FEAT_EVAL) 3160 if (did_set_swapcommand) 3161 set_vim_var_string(VV_SWAPCOMMAND, NULL, -1); 3162 #endif 3163 #ifdef FEAT_BROWSE 3164 vim_free(browse_file); 3165 #endif 3166 vim_free(free_fname); 3167 return retval; 3168 } 3169 3170 static void 3171 delbuf_msg(char_u *name) 3172 { 3173 semsg(_("E143: Autocommands unexpectedly deleted new buffer %s"), 3174 name == NULL ? (char_u *)"" : name); 3175 vim_free(name); 3176 au_new_curbuf.br_buf = NULL; 3177 au_new_curbuf.br_buf_free_count = 0; 3178 } 3179 3180 static int append_indent = 0; // autoindent for first line 3181 3182 /* 3183 * ":insert" and ":append", also used by ":change" 3184 */ 3185 void 3186 ex_append(exarg_T *eap) 3187 { 3188 char_u *theline; 3189 int did_undo = FALSE; 3190 linenr_T lnum = eap->line2; 3191 int indent = 0; 3192 char_u *p; 3193 int vcol; 3194 int empty = (curbuf->b_ml.ml_flags & ML_EMPTY); 3195 3196 // the ! flag toggles autoindent 3197 if (eap->forceit) 3198 curbuf->b_p_ai = !curbuf->b_p_ai; 3199 3200 // First autoindent comes from the line we start on 3201 if (eap->cmdidx != CMD_change && curbuf->b_p_ai && lnum > 0) 3202 append_indent = get_indent_lnum(lnum); 3203 3204 if (eap->cmdidx != CMD_append) 3205 --lnum; 3206 3207 // when the buffer is empty need to delete the dummy line 3208 if (empty && lnum == 1) 3209 lnum = 0; 3210 3211 State = INSERT; // behave like in Insert mode 3212 if (curbuf->b_p_iminsert == B_IMODE_LMAP) 3213 State |= LANGMAP; 3214 3215 for (;;) 3216 { 3217 msg_scroll = TRUE; 3218 need_wait_return = FALSE; 3219 if (curbuf->b_p_ai) 3220 { 3221 if (append_indent >= 0) 3222 { 3223 indent = append_indent; 3224 append_indent = -1; 3225 } 3226 else if (lnum > 0) 3227 indent = get_indent_lnum(lnum); 3228 } 3229 ex_keep_indent = FALSE; 3230 if (eap->getline == NULL) 3231 { 3232 // No getline() function, use the lines that follow. This ends 3233 // when there is no more. 3234 if (eap->nextcmd == NULL || *eap->nextcmd == NUL) 3235 break; 3236 p = vim_strchr(eap->nextcmd, NL); 3237 if (p == NULL) 3238 p = eap->nextcmd + STRLEN(eap->nextcmd); 3239 theline = vim_strnsave(eap->nextcmd, (int)(p - eap->nextcmd)); 3240 if (*p != NUL) 3241 ++p; 3242 eap->nextcmd = p; 3243 } 3244 else 3245 { 3246 int save_State = State; 3247 3248 // Set State to avoid the cursor shape to be set to INSERT mode 3249 // when getline() returns. 3250 State = CMDLINE; 3251 theline = eap->getline( 3252 #ifdef FEAT_EVAL 3253 eap->cstack->cs_looplevel > 0 ? -1 : 3254 #endif 3255 NUL, eap->cookie, indent, TRUE); 3256 State = save_State; 3257 } 3258 lines_left = Rows - 1; 3259 if (theline == NULL) 3260 break; 3261 3262 // Using ^ CTRL-D in getexmodeline() makes us repeat the indent. 3263 if (ex_keep_indent) 3264 append_indent = indent; 3265 3266 // Look for the "." after automatic indent. 3267 vcol = 0; 3268 for (p = theline; indent > vcol; ++p) 3269 { 3270 if (*p == ' ') 3271 ++vcol; 3272 else if (*p == TAB) 3273 vcol += 8 - vcol % 8; 3274 else 3275 break; 3276 } 3277 if ((p[0] == '.' && p[1] == NUL) 3278 || (!did_undo && u_save(lnum, lnum + 1 + (empty ? 1 : 0)) 3279 == FAIL)) 3280 { 3281 vim_free(theline); 3282 break; 3283 } 3284 3285 // don't use autoindent if nothing was typed. 3286 if (p[0] == NUL) 3287 theline[0] = NUL; 3288 3289 did_undo = TRUE; 3290 ml_append(lnum, theline, (colnr_T)0, FALSE); 3291 appended_lines_mark(lnum + (empty ? 1 : 0), 1L); 3292 3293 vim_free(theline); 3294 ++lnum; 3295 3296 if (empty) 3297 { 3298 ml_delete(2L, FALSE); 3299 empty = FALSE; 3300 } 3301 } 3302 State = NORMAL; 3303 3304 if (eap->forceit) 3305 curbuf->b_p_ai = !curbuf->b_p_ai; 3306 3307 // "start" is set to eap->line2+1 unless that position is invalid (when 3308 // eap->line2 pointed to the end of the buffer and nothing was appended) 3309 // "end" is set to lnum when something has been appended, otherwise 3310 // it is the same than "start" -- Acevedo 3311 if (!cmdmod.lockmarks) 3312 { 3313 curbuf->b_op_start.lnum = (eap->line2 < curbuf->b_ml.ml_line_count) ? 3314 eap->line2 + 1 : curbuf->b_ml.ml_line_count; 3315 if (eap->cmdidx != CMD_append) 3316 --curbuf->b_op_start.lnum; 3317 curbuf->b_op_end.lnum = (eap->line2 < lnum) 3318 ? lnum : curbuf->b_op_start.lnum; 3319 curbuf->b_op_start.col = curbuf->b_op_end.col = 0; 3320 } 3321 curwin->w_cursor.lnum = lnum; 3322 check_cursor_lnum(); 3323 beginline(BL_SOL | BL_FIX); 3324 3325 need_wait_return = FALSE; // don't use wait_return() now 3326 ex_no_reprint = TRUE; 3327 } 3328 3329 /* 3330 * ":change" 3331 */ 3332 void 3333 ex_change(exarg_T *eap) 3334 { 3335 linenr_T lnum; 3336 3337 if (eap->line2 >= eap->line1 3338 && u_save(eap->line1 - 1, eap->line2 + 1) == FAIL) 3339 return; 3340 3341 // the ! flag toggles autoindent 3342 if (eap->forceit ? !curbuf->b_p_ai : curbuf->b_p_ai) 3343 append_indent = get_indent_lnum(eap->line1); 3344 3345 for (lnum = eap->line2; lnum >= eap->line1; --lnum) 3346 { 3347 if (curbuf->b_ml.ml_flags & ML_EMPTY) // nothing to delete 3348 break; 3349 ml_delete(eap->line1, FALSE); 3350 } 3351 3352 // make sure the cursor is not beyond the end of the file now 3353 check_cursor_lnum(); 3354 deleted_lines_mark(eap->line1, (long)(eap->line2 - lnum)); 3355 3356 // ":append" on the line above the deleted lines. 3357 eap->line2 = eap->line1; 3358 ex_append(eap); 3359 } 3360 3361 void 3362 ex_z(exarg_T *eap) 3363 { 3364 char_u *x; 3365 long bigness; 3366 char_u *kind; 3367 int minus = 0; 3368 linenr_T start, end, curs, i; 3369 int j; 3370 linenr_T lnum = eap->line2; 3371 3372 // Vi compatible: ":z!" uses display height, without a count uses 3373 // 'scroll' 3374 if (eap->forceit) 3375 bigness = curwin->w_height; 3376 else if (!ONE_WINDOW) 3377 bigness = curwin->w_height - 3; 3378 else 3379 bigness = curwin->w_p_scr * 2; 3380 if (bigness < 1) 3381 bigness = 1; 3382 3383 x = eap->arg; 3384 kind = x; 3385 if (*kind == '-' || *kind == '+' || *kind == '=' 3386 || *kind == '^' || *kind == '.') 3387 ++x; 3388 while (*x == '-' || *x == '+') 3389 ++x; 3390 3391 if (*x != 0) 3392 { 3393 if (!VIM_ISDIGIT(*x)) 3394 { 3395 emsg(_("E144: non-numeric argument to :z")); 3396 return; 3397 } 3398 else 3399 { 3400 bigness = atol((char *)x); 3401 3402 // bigness could be < 0 if atol(x) overflows. 3403 if (bigness > 2 * curbuf->b_ml.ml_line_count || bigness < 0) 3404 bigness = 2 * curbuf->b_ml.ml_line_count; 3405 3406 p_window = bigness; 3407 if (*kind == '=') 3408 bigness += 2; 3409 } 3410 } 3411 3412 // the number of '-' and '+' multiplies the distance 3413 if (*kind == '-' || *kind == '+') 3414 for (x = kind + 1; *x == *kind; ++x) 3415 ; 3416 3417 switch (*kind) 3418 { 3419 case '-': 3420 start = lnum - bigness * (linenr_T)(x - kind) + 1; 3421 end = start + bigness - 1; 3422 curs = end; 3423 break; 3424 3425 case '=': 3426 start = lnum - (bigness + 1) / 2 + 1; 3427 end = lnum + (bigness + 1) / 2 - 1; 3428 curs = lnum; 3429 minus = 1; 3430 break; 3431 3432 case '^': 3433 start = lnum - bigness * 2; 3434 end = lnum - bigness; 3435 curs = lnum - bigness; 3436 break; 3437 3438 case '.': 3439 start = lnum - (bigness + 1) / 2 + 1; 3440 end = lnum + (bigness + 1) / 2 - 1; 3441 curs = end; 3442 break; 3443 3444 default: // '+' 3445 start = lnum; 3446 if (*kind == '+') 3447 start += bigness * (linenr_T)(x - kind - 1) + 1; 3448 else if (eap->addr_count == 0) 3449 ++start; 3450 end = start + bigness - 1; 3451 curs = end; 3452 break; 3453 } 3454 3455 if (start < 1) 3456 start = 1; 3457 3458 if (end > curbuf->b_ml.ml_line_count) 3459 end = curbuf->b_ml.ml_line_count; 3460 3461 if (curs > curbuf->b_ml.ml_line_count) 3462 curs = curbuf->b_ml.ml_line_count; 3463 else if (curs < 1) 3464 curs = 1; 3465 3466 for (i = start; i <= end; i++) 3467 { 3468 if (minus && i == lnum) 3469 { 3470 msg_putchar('\n'); 3471 3472 for (j = 1; j < Columns; j++) 3473 msg_putchar('-'); 3474 } 3475 3476 print_line(i, eap->flags & EXFLAG_NR, eap->flags & EXFLAG_LIST); 3477 3478 if (minus && i == lnum) 3479 { 3480 msg_putchar('\n'); 3481 3482 for (j = 1; j < Columns; j++) 3483 msg_putchar('-'); 3484 } 3485 } 3486 3487 if (curwin->w_cursor.lnum != curs) 3488 { 3489 curwin->w_cursor.lnum = curs; 3490 curwin->w_cursor.col = 0; 3491 } 3492 ex_no_reprint = TRUE; 3493 } 3494 3495 /* 3496 * Check if the restricted flag is set. 3497 * If so, give an error message and return TRUE. 3498 * Otherwise, return FALSE. 3499 */ 3500 int 3501 check_restricted(void) 3502 { 3503 if (restricted) 3504 { 3505 emsg(_("E145: Shell commands and some functionality not allowed in rvim")); 3506 return TRUE; 3507 } 3508 return FALSE; 3509 } 3510 3511 /* 3512 * Check if the secure flag is set (.exrc or .vimrc in current directory). 3513 * If so, give an error message and return TRUE. 3514 * Otherwise, return FALSE. 3515 */ 3516 int 3517 check_secure(void) 3518 { 3519 if (secure) 3520 { 3521 secure = 2; 3522 emsg(_(e_curdir)); 3523 return TRUE; 3524 } 3525 #ifdef HAVE_SANDBOX 3526 /* 3527 * In the sandbox more things are not allowed, including the things 3528 * disallowed in secure mode. 3529 */ 3530 if (sandbox != 0) 3531 { 3532 emsg(_(e_sandbox)); 3533 return TRUE; 3534 } 3535 #endif 3536 return FALSE; 3537 } 3538 3539 static char_u *old_sub = NULL; // previous substitute pattern 3540 static int global_need_beginline; // call beginline() after ":g" 3541 3542 /* 3543 * Flags that are kept between calls to :substitute. 3544 */ 3545 typedef struct { 3546 int do_all; // do multiple substitutions per line 3547 int do_ask; // ask for confirmation 3548 int do_count; // count only 3549 int do_error; // if false, ignore errors 3550 int do_print; // print last line with subs. 3551 int do_list; // list last line with subs. 3552 int do_number; // list last line with line nr 3553 int do_ic; // ignore case flag 3554 } subflags_T; 3555 3556 /* 3557 * Perform a substitution from line eap->line1 to line eap->line2 using the 3558 * command pointed to by eap->arg which should be of the form: 3559 * 3560 * /pattern/substitution/{flags} 3561 * 3562 * The usual escapes are supported as described in the regexp docs. 3563 */ 3564 void 3565 do_sub(exarg_T *eap) 3566 { 3567 linenr_T lnum; 3568 long i = 0; 3569 regmmatch_T regmatch; 3570 static subflags_T subflags = {FALSE, FALSE, FALSE, TRUE, FALSE, 3571 FALSE, FALSE, 0}; 3572 #ifdef FEAT_EVAL 3573 subflags_T subflags_save; 3574 #endif 3575 int save_do_all; // remember user specified 'g' flag 3576 int save_do_ask; // remember user specified 'c' flag 3577 char_u *pat = NULL, *sub = NULL; // init for GCC 3578 int delimiter; 3579 int sublen; 3580 int got_quit = FALSE; 3581 int got_match = FALSE; 3582 int temp; 3583 int which_pat; 3584 char_u *cmd; 3585 int save_State; 3586 linenr_T first_line = 0; // first changed line 3587 linenr_T last_line= 0; // below last changed line AFTER the 3588 // change 3589 linenr_T old_line_count = curbuf->b_ml.ml_line_count; 3590 linenr_T line2; 3591 long nmatch; // number of lines in match 3592 char_u *sub_firstline; // allocated copy of first sub line 3593 int endcolumn = FALSE; // cursor in last column when done 3594 pos_T old_cursor = curwin->w_cursor; 3595 int start_nsubs; 3596 #ifdef FEAT_EVAL 3597 int save_ma = 0; 3598 #endif 3599 3600 cmd = eap->arg; 3601 if (!global_busy) 3602 { 3603 sub_nsubs = 0; 3604 sub_nlines = 0; 3605 } 3606 start_nsubs = sub_nsubs; 3607 3608 if (eap->cmdidx == CMD_tilde) 3609 which_pat = RE_LAST; // use last used regexp 3610 else 3611 which_pat = RE_SUBST; // use last substitute regexp 3612 3613 // new pattern and substitution 3614 if (eap->cmd[0] == 's' && *cmd != NUL && !VIM_ISWHITE(*cmd) 3615 && vim_strchr((char_u *)"0123456789cegriIp|\"", *cmd) == NULL) 3616 { 3617 // don't accept alphanumeric for separator 3618 if (isalpha(*cmd)) 3619 { 3620 emsg(_("E146: Regular expressions can't be delimited by letters")); 3621 return; 3622 } 3623 /* 3624 * undocumented vi feature: 3625 * "\/sub/" and "\?sub?" use last used search pattern (almost like 3626 * //sub/r). "\&sub&" use last substitute pattern (like //sub/). 3627 */ 3628 if (*cmd == '\\') 3629 { 3630 ++cmd; 3631 if (vim_strchr((char_u *)"/?&", *cmd) == NULL) 3632 { 3633 emsg(_(e_backslash)); 3634 return; 3635 } 3636 if (*cmd != '&') 3637 which_pat = RE_SEARCH; // use last '/' pattern 3638 pat = (char_u *)""; // empty search pattern 3639 delimiter = *cmd++; // remember delimiter character 3640 } 3641 else // find the end of the regexp 3642 { 3643 which_pat = RE_LAST; // use last used regexp 3644 delimiter = *cmd++; // remember delimiter character 3645 pat = cmd; // remember start of search pat 3646 cmd = skip_regexp(cmd, delimiter, p_magic, &eap->arg); 3647 if (cmd[0] == delimiter) // end delimiter found 3648 *cmd++ = NUL; // replace it with a NUL 3649 } 3650 3651 /* 3652 * Small incompatibility: vi sees '\n' as end of the command, but in 3653 * Vim we want to use '\n' to find/substitute a NUL. 3654 */ 3655 sub = cmd; // remember the start of the substitution 3656 3657 while (cmd[0]) 3658 { 3659 if (cmd[0] == delimiter) // end delimiter found 3660 { 3661 *cmd++ = NUL; // replace it with a NUL 3662 break; 3663 } 3664 if (cmd[0] == '\\' && cmd[1] != 0) // skip escaped characters 3665 ++cmd; 3666 MB_PTR_ADV(cmd); 3667 } 3668 3669 if (!eap->skip) 3670 { 3671 // In POSIX vi ":s/pat/%/" uses the previous subst. string. 3672 if (STRCMP(sub, "%") == 0 3673 && vim_strchr(p_cpo, CPO_SUBPERCENT) != NULL) 3674 { 3675 if (old_sub == NULL) // there is no previous command 3676 { 3677 emsg(_(e_nopresub)); 3678 return; 3679 } 3680 sub = old_sub; 3681 } 3682 else 3683 { 3684 vim_free(old_sub); 3685 old_sub = vim_strsave(sub); 3686 } 3687 } 3688 } 3689 else if (!eap->skip) // use previous pattern and substitution 3690 { 3691 if (old_sub == NULL) // there is no previous command 3692 { 3693 emsg(_(e_nopresub)); 3694 return; 3695 } 3696 pat = NULL; // search_regcomp() will use previous pattern 3697 sub = old_sub; 3698 3699 // Vi compatibility quirk: repeating with ":s" keeps the cursor in the 3700 // last column after using "$". 3701 endcolumn = (curwin->w_curswant == MAXCOL); 3702 } 3703 3704 // Recognize ":%s/\n//" and turn it into a join command, which is much 3705 // more efficient. 3706 // TODO: find a generic solution to make line-joining operations more 3707 // efficient, avoid allocating a string that grows in size. 3708 if (pat != NULL && STRCMP(pat, "\\n") == 0 3709 && *sub == NUL 3710 && (*cmd == NUL || (cmd[1] == NUL && (*cmd == 'g' || *cmd == 'l' 3711 || *cmd == 'p' || *cmd == '#')))) 3712 { 3713 linenr_T joined_lines_count; 3714 3715 curwin->w_cursor.lnum = eap->line1; 3716 if (*cmd == 'l') 3717 eap->flags = EXFLAG_LIST; 3718 else if (*cmd == '#') 3719 eap->flags = EXFLAG_NR; 3720 else if (*cmd == 'p') 3721 eap->flags = EXFLAG_PRINT; 3722 3723 // The number of lines joined is the number of lines in the range plus 3724 // one. One less when the last line is included. 3725 joined_lines_count = eap->line2 - eap->line1 + 1; 3726 if (eap->line2 < curbuf->b_ml.ml_line_count) 3727 ++joined_lines_count; 3728 if (joined_lines_count > 1) 3729 { 3730 (void)do_join(joined_lines_count, FALSE, TRUE, FALSE, TRUE); 3731 sub_nsubs = joined_lines_count - 1; 3732 sub_nlines = 1; 3733 (void)do_sub_msg(FALSE); 3734 ex_may_print(eap); 3735 } 3736 3737 if (!cmdmod.keeppatterns) 3738 save_re_pat(RE_SUBST, pat, p_magic); 3739 // put pattern in history 3740 add_to_history(HIST_SEARCH, pat, TRUE, NUL); 3741 3742 return; 3743 } 3744 3745 /* 3746 * Find trailing options. When '&' is used, keep old options. 3747 */ 3748 if (*cmd == '&') 3749 ++cmd; 3750 else 3751 { 3752 if (!p_ed) 3753 { 3754 if (p_gd) // default is global on 3755 subflags.do_all = TRUE; 3756 else 3757 subflags.do_all = FALSE; 3758 subflags.do_ask = FALSE; 3759 } 3760 subflags.do_error = TRUE; 3761 subflags.do_print = FALSE; 3762 subflags.do_list = FALSE; 3763 subflags.do_count = FALSE; 3764 subflags.do_number = FALSE; 3765 subflags.do_ic = 0; 3766 } 3767 while (*cmd) 3768 { 3769 /* 3770 * Note that 'g' and 'c' are always inverted, also when p_ed is off. 3771 * 'r' is never inverted. 3772 */ 3773 if (*cmd == 'g') 3774 subflags.do_all = !subflags.do_all; 3775 else if (*cmd == 'c') 3776 subflags.do_ask = !subflags.do_ask; 3777 else if (*cmd == 'n') 3778 subflags.do_count = TRUE; 3779 else if (*cmd == 'e') 3780 subflags.do_error = !subflags.do_error; 3781 else if (*cmd == 'r') // use last used regexp 3782 which_pat = RE_LAST; 3783 else if (*cmd == 'p') 3784 subflags.do_print = TRUE; 3785 else if (*cmd == '#') 3786 { 3787 subflags.do_print = TRUE; 3788 subflags.do_number = TRUE; 3789 } 3790 else if (*cmd == 'l') 3791 { 3792 subflags.do_print = TRUE; 3793 subflags.do_list = TRUE; 3794 } 3795 else if (*cmd == 'i') // ignore case 3796 subflags.do_ic = 'i'; 3797 else if (*cmd == 'I') // don't ignore case 3798 subflags.do_ic = 'I'; 3799 else 3800 break; 3801 ++cmd; 3802 } 3803 if (subflags.do_count) 3804 subflags.do_ask = FALSE; 3805 3806 save_do_all = subflags.do_all; 3807 save_do_ask = subflags.do_ask; 3808 3809 /* 3810 * check for a trailing count 3811 */ 3812 cmd = skipwhite(cmd); 3813 if (VIM_ISDIGIT(*cmd)) 3814 { 3815 i = getdigits(&cmd); 3816 if (i <= 0 && !eap->skip && subflags.do_error) 3817 { 3818 emsg(_(e_zerocount)); 3819 return; 3820 } 3821 eap->line1 = eap->line2; 3822 eap->line2 += i - 1; 3823 if (eap->line2 > curbuf->b_ml.ml_line_count) 3824 eap->line2 = curbuf->b_ml.ml_line_count; 3825 } 3826 3827 /* 3828 * check for trailing command or garbage 3829 */ 3830 cmd = skipwhite(cmd); 3831 if (*cmd && *cmd != '"') // if not end-of-line or comment 3832 { 3833 eap->nextcmd = check_nextcmd(cmd); 3834 if (eap->nextcmd == NULL) 3835 { 3836 emsg(_(e_trailing)); 3837 return; 3838 } 3839 } 3840 3841 if (eap->skip) // not executing commands, only parsing 3842 return; 3843 3844 if (!subflags.do_count && !curbuf->b_p_ma) 3845 { 3846 // Substitution is not allowed in non-'modifiable' buffer 3847 emsg(_(e_modifiable)); 3848 return; 3849 } 3850 3851 if (search_regcomp(pat, RE_SUBST, which_pat, SEARCH_HIS, ®match) == FAIL) 3852 { 3853 if (subflags.do_error) 3854 emsg(_(e_invcmd)); 3855 return; 3856 } 3857 3858 // the 'i' or 'I' flag overrules 'ignorecase' and 'smartcase' 3859 if (subflags.do_ic == 'i') 3860 regmatch.rmm_ic = TRUE; 3861 else if (subflags.do_ic == 'I') 3862 regmatch.rmm_ic = FALSE; 3863 3864 sub_firstline = NULL; 3865 3866 /* 3867 * ~ in the substitute pattern is replaced with the old pattern. 3868 * We do it here once to avoid it to be replaced over and over again. 3869 * But don't do it when it starts with "\=", then it's an expression. 3870 */ 3871 if (!(sub[0] == '\\' && sub[1] == '=')) 3872 sub = regtilde(sub, p_magic); 3873 3874 /* 3875 * Check for a match on each line. 3876 */ 3877 line2 = eap->line2; 3878 for (lnum = eap->line1; lnum <= line2 && !(got_quit 3879 #if defined(FEAT_EVAL) 3880 || aborting() 3881 #endif 3882 ); ++lnum) 3883 { 3884 nmatch = vim_regexec_multi(®match, curwin, curbuf, lnum, 3885 (colnr_T)0, NULL, NULL); 3886 if (nmatch) 3887 { 3888 colnr_T copycol; 3889 colnr_T matchcol; 3890 colnr_T prev_matchcol = MAXCOL; 3891 char_u *new_end, *new_start = NULL; 3892 unsigned new_start_len = 0; 3893 char_u *p1; 3894 int did_sub = FALSE; 3895 int lastone; 3896 int len, copy_len, needed_len; 3897 long nmatch_tl = 0; // nr of lines matched below lnum 3898 int do_again; // do it again after joining lines 3899 int skip_match = FALSE; 3900 linenr_T sub_firstlnum; // nr of first sub line 3901 #ifdef FEAT_PROP_POPUP 3902 int apc_flags = APC_SAVE_FOR_UNDO | APC_SUBSTITUTE; 3903 colnr_T total_added = 0; 3904 #endif 3905 3906 /* 3907 * The new text is build up step by step, to avoid too much 3908 * copying. There are these pieces: 3909 * sub_firstline The old text, unmodified. 3910 * copycol Column in the old text where we started 3911 * looking for a match; from here old text still 3912 * needs to be copied to the new text. 3913 * matchcol Column number of the old text where to look 3914 * for the next match. It's just after the 3915 * previous match or one further. 3916 * prev_matchcol Column just after the previous match (if any). 3917 * Mostly equal to matchcol, except for the first 3918 * match and after skipping an empty match. 3919 * regmatch.*pos Where the pattern matched in the old text. 3920 * new_start The new text, all that has been produced so 3921 * far. 3922 * new_end The new text, where to append new text. 3923 * 3924 * lnum The line number where we found the start of 3925 * the match. Can be below the line we searched 3926 * when there is a \n before a \zs in the 3927 * pattern. 3928 * sub_firstlnum The line number in the buffer where to look 3929 * for a match. Can be different from "lnum" 3930 * when the pattern or substitute string contains 3931 * line breaks. 3932 * 3933 * Special situations: 3934 * - When the substitute string contains a line break, the part up 3935 * to the line break is inserted in the text, but the copy of 3936 * the original line is kept. "sub_firstlnum" is adjusted for 3937 * the inserted lines. 3938 * - When the matched pattern contains a line break, the old line 3939 * is taken from the line at the end of the pattern. The lines 3940 * in the match are deleted later, "sub_firstlnum" is adjusted 3941 * accordingly. 3942 * 3943 * The new text is built up in new_start[]. It has some extra 3944 * room to avoid using alloc()/free() too often. new_start_len is 3945 * the length of the allocated memory at new_start. 3946 * 3947 * Make a copy of the old line, so it won't be taken away when 3948 * updating the screen or handling a multi-line match. The "old_" 3949 * pointers point into this copy. 3950 */ 3951 sub_firstlnum = lnum; 3952 copycol = 0; 3953 matchcol = 0; 3954 3955 // At first match, remember current cursor position. 3956 if (!got_match) 3957 { 3958 setpcmark(); 3959 got_match = TRUE; 3960 } 3961 3962 /* 3963 * Loop until nothing more to replace in this line. 3964 * 1. Handle match with empty string. 3965 * 2. If do_ask is set, ask for confirmation. 3966 * 3. substitute the string. 3967 * 4. if do_all is set, find next match 3968 * 5. break if there isn't another match in this line 3969 */ 3970 for (;;) 3971 { 3972 // Advance "lnum" to the line where the match starts. The 3973 // match does not start in the first line when there is a line 3974 // break before \zs. 3975 if (regmatch.startpos[0].lnum > 0) 3976 { 3977 lnum += regmatch.startpos[0].lnum; 3978 sub_firstlnum += regmatch.startpos[0].lnum; 3979 nmatch -= regmatch.startpos[0].lnum; 3980 VIM_CLEAR(sub_firstline); 3981 } 3982 3983 // Match might be after the last line for "\n\zs" matching at 3984 // the end of the last line. 3985 if (lnum > curbuf->b_ml.ml_line_count) 3986 break; 3987 3988 if (sub_firstline == NULL) 3989 { 3990 sub_firstline = vim_strsave(ml_get(sub_firstlnum)); 3991 if (sub_firstline == NULL) 3992 { 3993 vim_free(new_start); 3994 goto outofmem; 3995 } 3996 } 3997 3998 // Save the line number of the last change for the final 3999 // cursor position (just like Vi). 4000 curwin->w_cursor.lnum = lnum; 4001 do_again = FALSE; 4002 4003 /* 4004 * 1. Match empty string does not count, except for first 4005 * match. This reproduces the strange vi behaviour. 4006 * This also catches endless loops. 4007 */ 4008 if (matchcol == prev_matchcol 4009 && regmatch.endpos[0].lnum == 0 4010 && matchcol == regmatch.endpos[0].col) 4011 { 4012 if (sub_firstline[matchcol] == NUL) 4013 // We already were at the end of the line. Don't look 4014 // for a match in this line again. 4015 skip_match = TRUE; 4016 else 4017 { 4018 // search for a match at next column 4019 if (has_mbyte) 4020 matchcol += mb_ptr2len(sub_firstline + matchcol); 4021 else 4022 ++matchcol; 4023 } 4024 goto skip; 4025 } 4026 4027 // Normally we continue searching for a match just after the 4028 // previous match. 4029 matchcol = regmatch.endpos[0].col; 4030 prev_matchcol = matchcol; 4031 4032 /* 4033 * 2. If do_count is set only increase the counter. 4034 * If do_ask is set, ask for confirmation. 4035 */ 4036 if (subflags.do_count) 4037 { 4038 // For a multi-line match, put matchcol at the NUL at 4039 // the end of the line and set nmatch to one, so that 4040 // we continue looking for a match on the next line. 4041 // Avoids that ":s/\nB\@=//gc" get stuck. 4042 if (nmatch > 1) 4043 { 4044 matchcol = (colnr_T)STRLEN(sub_firstline); 4045 nmatch = 1; 4046 skip_match = TRUE; 4047 } 4048 sub_nsubs++; 4049 did_sub = TRUE; 4050 #ifdef FEAT_EVAL 4051 // Skip the substitution, unless an expression is used, 4052 // then it is evaluated in the sandbox. 4053 if (!(sub[0] == '\\' && sub[1] == '=')) 4054 #endif 4055 goto skip; 4056 } 4057 4058 if (subflags.do_ask) 4059 { 4060 int typed = 0; 4061 4062 // change State to CONFIRM, so that the mouse works 4063 // properly 4064 save_State = State; 4065 State = CONFIRM; 4066 setmouse(); // disable mouse in xterm 4067 curwin->w_cursor.col = regmatch.startpos[0].col; 4068 if (curwin->w_p_crb) 4069 do_check_cursorbind(); 4070 4071 // When 'cpoptions' contains "u" don't sync undo when 4072 // asking for confirmation. 4073 if (vim_strchr(p_cpo, CPO_UNDO) != NULL) 4074 ++no_u_sync; 4075 4076 /* 4077 * Loop until 'y', 'n', 'q', CTRL-E or CTRL-Y typed. 4078 */ 4079 while (subflags.do_ask) 4080 { 4081 if (exmode_active) 4082 { 4083 char_u *resp; 4084 colnr_T sc, ec; 4085 4086 print_line_no_prefix(lnum, 4087 subflags.do_number, subflags.do_list); 4088 4089 getvcol(curwin, &curwin->w_cursor, &sc, NULL, NULL); 4090 curwin->w_cursor.col = regmatch.endpos[0].col - 1; 4091 if (curwin->w_cursor.col < 0) 4092 curwin->w_cursor.col = 0; 4093 getvcol(curwin, &curwin->w_cursor, NULL, NULL, &ec); 4094 if (subflags.do_number || curwin->w_p_nu) 4095 { 4096 int numw = number_width(curwin) + 1; 4097 sc += numw; 4098 ec += numw; 4099 } 4100 msg_start(); 4101 for (i = 0; i < (long)sc; ++i) 4102 msg_putchar(' '); 4103 for ( ; i <= (long)ec; ++i) 4104 msg_putchar('^'); 4105 4106 resp = getexmodeline('?', NULL, 0, TRUE); 4107 if (resp != NULL) 4108 { 4109 typed = *resp; 4110 vim_free(resp); 4111 } 4112 } 4113 else 4114 { 4115 char_u *orig_line = NULL; 4116 int len_change = 0; 4117 #ifdef FEAT_FOLDING 4118 int save_p_fen = curwin->w_p_fen; 4119 4120 curwin->w_p_fen = FALSE; 4121 #endif 4122 // Invert the matched string. 4123 // Remove the inversion afterwards. 4124 temp = RedrawingDisabled; 4125 RedrawingDisabled = 0; 4126 4127 if (new_start != NULL) 4128 { 4129 // There already was a substitution, we would 4130 // like to show this to the user. We cannot 4131 // really update the line, it would change 4132 // what matches. Temporarily replace the line 4133 // and change it back afterwards. 4134 orig_line = vim_strsave(ml_get(lnum)); 4135 if (orig_line != NULL) 4136 { 4137 char_u *new_line = concat_str(new_start, 4138 sub_firstline + copycol); 4139 4140 if (new_line == NULL) 4141 VIM_CLEAR(orig_line); 4142 else 4143 { 4144 // Position the cursor relative to the 4145 // end of the line, the previous 4146 // substitute may have inserted or 4147 // deleted characters before the 4148 // cursor. 4149 len_change = (int)STRLEN(new_line) 4150 - (int)STRLEN(orig_line); 4151 curwin->w_cursor.col += len_change; 4152 ml_replace(lnum, new_line, FALSE); 4153 } 4154 } 4155 } 4156 4157 search_match_lines = regmatch.endpos[0].lnum 4158 - regmatch.startpos[0].lnum; 4159 search_match_endcol = regmatch.endpos[0].col 4160 + len_change; 4161 highlight_match = TRUE; 4162 4163 update_topline(); 4164 validate_cursor(); 4165 update_screen(SOME_VALID); 4166 highlight_match = FALSE; 4167 redraw_later(SOME_VALID); 4168 4169 #ifdef FEAT_FOLDING 4170 curwin->w_p_fen = save_p_fen; 4171 #endif 4172 if (msg_row == Rows - 1) 4173 msg_didout = FALSE; // avoid a scroll-up 4174 msg_starthere(); 4175 i = msg_scroll; 4176 msg_scroll = 0; // truncate msg when 4177 // needed 4178 msg_no_more = TRUE; 4179 // write message same highlighting as for 4180 // wait_return 4181 smsg_attr(HL_ATTR(HLF_R), 4182 _("replace with %s (y/n/a/q/l/^E/^Y)?"), sub); 4183 msg_no_more = FALSE; 4184 msg_scroll = i; 4185 showruler(TRUE); 4186 windgoto(msg_row, msg_col); 4187 RedrawingDisabled = temp; 4188 4189 #ifdef USE_ON_FLY_SCROLL 4190 dont_scroll = FALSE; // allow scrolling here 4191 #endif 4192 ++no_mapping; // don't map this key 4193 ++allow_keys; // allow special keys 4194 typed = plain_vgetc(); 4195 --allow_keys; 4196 --no_mapping; 4197 4198 // clear the question 4199 msg_didout = FALSE; // don't scroll up 4200 msg_col = 0; 4201 gotocmdline(TRUE); 4202 4203 // restore the line 4204 if (orig_line != NULL) 4205 ml_replace(lnum, orig_line, FALSE); 4206 } 4207 4208 need_wait_return = FALSE; // no hit-return prompt 4209 if (typed == 'q' || typed == ESC || typed == Ctrl_C 4210 #ifdef UNIX 4211 || typed == intr_char 4212 #endif 4213 ) 4214 { 4215 got_quit = TRUE; 4216 break; 4217 } 4218 if (typed == 'n') 4219 break; 4220 if (typed == 'y') 4221 break; 4222 if (typed == 'l') 4223 { 4224 // last: replace and then stop 4225 subflags.do_all = FALSE; 4226 line2 = lnum; 4227 break; 4228 } 4229 if (typed == 'a') 4230 { 4231 subflags.do_ask = FALSE; 4232 break; 4233 } 4234 if (typed == Ctrl_E) 4235 scrollup_clamp(); 4236 else if (typed == Ctrl_Y) 4237 scrolldown_clamp(); 4238 } 4239 State = save_State; 4240 setmouse(); 4241 if (vim_strchr(p_cpo, CPO_UNDO) != NULL) 4242 --no_u_sync; 4243 4244 if (typed == 'n') 4245 { 4246 // For a multi-line match, put matchcol at the NUL at 4247 // the end of the line and set nmatch to one, so that 4248 // we continue looking for a match on the next line. 4249 // Avoids that ":%s/\nB\@=//gc" and ":%s/\n/,\r/gc" 4250 // get stuck when pressing 'n'. 4251 if (nmatch > 1) 4252 { 4253 matchcol = (colnr_T)STRLEN(sub_firstline); 4254 skip_match = TRUE; 4255 } 4256 goto skip; 4257 } 4258 if (got_quit) 4259 goto skip; 4260 } 4261 4262 // Move the cursor to the start of the match, so that we can 4263 // use "\=col("."). 4264 curwin->w_cursor.col = regmatch.startpos[0].col; 4265 4266 /* 4267 * 3. substitute the string. 4268 */ 4269 #ifdef FEAT_EVAL 4270 save_ma = curbuf->b_p_ma; 4271 if (subflags.do_count) 4272 { 4273 // prevent accidentally changing the buffer by a function 4274 curbuf->b_p_ma = FALSE; 4275 sandbox++; 4276 } 4277 // Save flags for recursion. They can change for e.g. 4278 // :s/^/\=execute("s#^##gn") 4279 subflags_save = subflags; 4280 #endif 4281 // get length of substitution part 4282 sublen = vim_regsub_multi(®match, 4283 sub_firstlnum - regmatch.startpos[0].lnum, 4284 sub, sub_firstline, FALSE, p_magic, TRUE); 4285 #ifdef FEAT_EVAL 4286 // If getting the substitute string caused an error, don't do 4287 // the replacement. 4288 // Don't keep flags set by a recursive call. 4289 subflags = subflags_save; 4290 if (aborting() || subflags.do_count) 4291 { 4292 curbuf->b_p_ma = save_ma; 4293 if (sandbox > 0) 4294 sandbox--; 4295 goto skip; 4296 } 4297 #endif 4298 4299 // When the match included the "$" of the last line it may 4300 // go beyond the last line of the buffer. 4301 if (nmatch > curbuf->b_ml.ml_line_count - sub_firstlnum + 1) 4302 { 4303 nmatch = curbuf->b_ml.ml_line_count - sub_firstlnum + 1; 4304 skip_match = TRUE; 4305 } 4306 4307 // Need room for: 4308 // - result so far in new_start (not for first sub in line) 4309 // - original text up to match 4310 // - length of substituted part 4311 // - original text after match 4312 // Adjust text properties here, since we have all information 4313 // needed. 4314 if (nmatch == 1) 4315 { 4316 p1 = sub_firstline; 4317 #ifdef FEAT_PROP_POPUP 4318 if (curbuf->b_has_textprop) 4319 { 4320 int bytes_added = sublen - 1 - (regmatch.endpos[0].col 4321 - regmatch.startpos[0].col); 4322 4323 // When text properties are changed, need to save for 4324 // undo first, unless done already. 4325 if (adjust_prop_columns(lnum, 4326 total_added + regmatch.startpos[0].col, 4327 bytes_added, apc_flags)) 4328 apc_flags &= ~APC_SAVE_FOR_UNDO; 4329 // Offset for column byte number of the text property 4330 // in the resulting buffer afterwards. 4331 total_added += bytes_added; 4332 } 4333 #endif 4334 } 4335 else 4336 { 4337 p1 = ml_get(sub_firstlnum + nmatch - 1); 4338 nmatch_tl += nmatch - 1; 4339 } 4340 copy_len = regmatch.startpos[0].col - copycol; 4341 needed_len = copy_len + ((unsigned)STRLEN(p1) 4342 - regmatch.endpos[0].col) + sublen + 1; 4343 if (new_start == NULL) 4344 { 4345 /* 4346 * Get some space for a temporary buffer to do the 4347 * substitution into (and some extra space to avoid 4348 * too many calls to alloc()/free()). 4349 */ 4350 new_start_len = needed_len + 50; 4351 if ((new_start = alloc(new_start_len)) == NULL) 4352 goto outofmem; 4353 *new_start = NUL; 4354 new_end = new_start; 4355 } 4356 else 4357 { 4358 /* 4359 * Check if the temporary buffer is long enough to do the 4360 * substitution into. If not, make it larger (with a bit 4361 * extra to avoid too many calls to alloc()/free()). 4362 */ 4363 len = (unsigned)STRLEN(new_start); 4364 needed_len += len; 4365 if (needed_len > (int)new_start_len) 4366 { 4367 new_start_len = needed_len + 50; 4368 if ((p1 = alloc(new_start_len)) == NULL) 4369 { 4370 vim_free(new_start); 4371 goto outofmem; 4372 } 4373 mch_memmove(p1, new_start, (size_t)(len + 1)); 4374 vim_free(new_start); 4375 new_start = p1; 4376 } 4377 new_end = new_start + len; 4378 } 4379 4380 /* 4381 * copy the text up to the part that matched 4382 */ 4383 mch_memmove(new_end, sub_firstline + copycol, (size_t)copy_len); 4384 new_end += copy_len; 4385 4386 (void)vim_regsub_multi(®match, 4387 sub_firstlnum - regmatch.startpos[0].lnum, 4388 sub, new_end, TRUE, p_magic, TRUE); 4389 sub_nsubs++; 4390 did_sub = TRUE; 4391 4392 // Move the cursor to the start of the line, to avoid that it 4393 // is beyond the end of the line after the substitution. 4394 curwin->w_cursor.col = 0; 4395 4396 // For a multi-line match, make a copy of the last matched 4397 // line and continue in that one. 4398 if (nmatch > 1) 4399 { 4400 sub_firstlnum += nmatch - 1; 4401 vim_free(sub_firstline); 4402 sub_firstline = vim_strsave(ml_get(sub_firstlnum)); 4403 // When going beyond the last line, stop substituting. 4404 if (sub_firstlnum <= line2) 4405 do_again = TRUE; 4406 else 4407 subflags.do_all = FALSE; 4408 } 4409 4410 // Remember next character to be copied. 4411 copycol = regmatch.endpos[0].col; 4412 4413 if (skip_match) 4414 { 4415 // Already hit end of the buffer, sub_firstlnum is one 4416 // less than what it ought to be. 4417 vim_free(sub_firstline); 4418 sub_firstline = vim_strsave((char_u *)""); 4419 copycol = 0; 4420 } 4421 4422 /* 4423 * Now the trick is to replace CTRL-M chars with a real line 4424 * break. This would make it impossible to insert a CTRL-M in 4425 * the text. The line break can be avoided by preceding the 4426 * CTRL-M with a backslash. To be able to insert a backslash, 4427 * they must be doubled in the string and are halved here. 4428 * That is Vi compatible. 4429 */ 4430 for (p1 = new_end; *p1; ++p1) 4431 { 4432 if (p1[0] == '\\' && p1[1] != NUL) // remove backslash 4433 { 4434 STRMOVE(p1, p1 + 1); 4435 #ifdef FEAT_PROP_POPUP 4436 if (curbuf->b_has_textprop) 4437 { 4438 // When text properties are changed, need to save 4439 // for undo first, unless done already. 4440 if (adjust_prop_columns(lnum, 4441 (colnr_T)(p1 - new_start), -1, 4442 apc_flags)) 4443 apc_flags &= ~APC_SAVE_FOR_UNDO; 4444 } 4445 #endif 4446 } 4447 else if (*p1 == CAR) 4448 { 4449 if (u_inssub(lnum) == OK) // prepare for undo 4450 { 4451 colnr_T plen = (colnr_T)(p1 - new_start + 1); 4452 4453 *p1 = NUL; // truncate up to the CR 4454 ml_append(lnum - 1, new_start, plen, FALSE); 4455 mark_adjust(lnum + 1, (linenr_T)MAXLNUM, 1L, 0L); 4456 if (subflags.do_ask) 4457 appended_lines(lnum - 1, 1L); 4458 else 4459 { 4460 if (first_line == 0) 4461 first_line = lnum; 4462 last_line = lnum + 1; 4463 } 4464 #ifdef FEAT_PROP_POPUP 4465 adjust_props_for_split(lnum + 1, lnum, plen, 1); 4466 #endif 4467 // all line numbers increase 4468 ++sub_firstlnum; 4469 ++lnum; 4470 ++line2; 4471 // move the cursor to the new line, like Vi 4472 ++curwin->w_cursor.lnum; 4473 // copy the rest 4474 STRMOVE(new_start, p1 + 1); 4475 p1 = new_start - 1; 4476 } 4477 } 4478 else if (has_mbyte) 4479 p1 += (*mb_ptr2len)(p1) - 1; 4480 } 4481 4482 /* 4483 * 4. If do_all is set, find next match. 4484 * Prevent endless loop with patterns that match empty 4485 * strings, e.g. :s/$/pat/g or :s/[a-z]* /(&)/g. 4486 * But ":s/\n/#/" is OK. 4487 */ 4488 skip: 4489 // We already know that we did the last subst when we are at 4490 // the end of the line, except that a pattern like 4491 // "bar\|\nfoo" may match at the NUL. "lnum" can be below 4492 // "line2" when there is a \zs in the pattern after a line 4493 // break. 4494 lastone = (skip_match 4495 || got_int 4496 || got_quit 4497 || lnum > line2 4498 || !(subflags.do_all || do_again) 4499 || (sub_firstline[matchcol] == NUL && nmatch <= 1 4500 && !re_multiline(regmatch.regprog))); 4501 nmatch = -1; 4502 4503 /* 4504 * Replace the line in the buffer when needed. This is 4505 * skipped when there are more matches. 4506 * The check for nmatch_tl is needed for when multi-line 4507 * matching must replace the lines before trying to do another 4508 * match, otherwise "\@<=" won't work. 4509 * When the match starts below where we start searching also 4510 * need to replace the line first (using \zs after \n). 4511 */ 4512 if (lastone 4513 || nmatch_tl > 0 4514 || (nmatch = vim_regexec_multi(®match, curwin, 4515 curbuf, sub_firstlnum, 4516 matchcol, NULL, NULL)) == 0 4517 || regmatch.startpos[0].lnum > 0) 4518 { 4519 if (new_start != NULL) 4520 { 4521 /* 4522 * Copy the rest of the line, that didn't match. 4523 * "matchcol" has to be adjusted, we use the end of 4524 * the line as reference, because the substitute may 4525 * have changed the number of characters. Same for 4526 * "prev_matchcol". 4527 */ 4528 STRCAT(new_start, sub_firstline + copycol); 4529 matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol; 4530 prev_matchcol = (colnr_T)STRLEN(sub_firstline) 4531 - prev_matchcol; 4532 4533 if (u_savesub(lnum) != OK) 4534 break; 4535 ml_replace(lnum, new_start, TRUE); 4536 4537 if (nmatch_tl > 0) 4538 { 4539 /* 4540 * Matched lines have now been substituted and are 4541 * useless, delete them. The part after the match 4542 * has been appended to new_start, we don't need 4543 * it in the buffer. 4544 */ 4545 ++lnum; 4546 if (u_savedel(lnum, nmatch_tl) != OK) 4547 break; 4548 for (i = 0; i < nmatch_tl; ++i) 4549 ml_delete(lnum, (int)FALSE); 4550 mark_adjust(lnum, lnum + nmatch_tl - 1, 4551 (long)MAXLNUM, -nmatch_tl); 4552 if (subflags.do_ask) 4553 deleted_lines(lnum, nmatch_tl); 4554 --lnum; 4555 line2 -= nmatch_tl; // nr of lines decreases 4556 nmatch_tl = 0; 4557 } 4558 4559 // When asking, undo is saved each time, must also set 4560 // changed flag each time. 4561 if (subflags.do_ask) 4562 changed_bytes(lnum, 0); 4563 else 4564 { 4565 if (first_line == 0) 4566 first_line = lnum; 4567 last_line = lnum + 1; 4568 } 4569 4570 sub_firstlnum = lnum; 4571 vim_free(sub_firstline); // free the temp buffer 4572 sub_firstline = new_start; 4573 new_start = NULL; 4574 matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol; 4575 prev_matchcol = (colnr_T)STRLEN(sub_firstline) 4576 - prev_matchcol; 4577 copycol = 0; 4578 } 4579 if (nmatch == -1 && !lastone) 4580 nmatch = vim_regexec_multi(®match, curwin, curbuf, 4581 sub_firstlnum, matchcol, NULL, NULL); 4582 4583 /* 4584 * 5. break if there isn't another match in this line 4585 */ 4586 if (nmatch <= 0) 4587 { 4588 // If the match found didn't start where we were 4589 // searching, do the next search in the line where we 4590 // found the match. 4591 if (nmatch == -1) 4592 lnum -= regmatch.startpos[0].lnum; 4593 break; 4594 } 4595 } 4596 4597 line_breakcheck(); 4598 } 4599 4600 if (did_sub) 4601 ++sub_nlines; 4602 vim_free(new_start); // for when substitute was cancelled 4603 VIM_CLEAR(sub_firstline); // free the copy of the original line 4604 } 4605 4606 line_breakcheck(); 4607 } 4608 4609 if (first_line != 0) 4610 { 4611 // Need to subtract the number of added lines from "last_line" to get 4612 // the line number before the change (same as adding the number of 4613 // deleted lines). 4614 i = curbuf->b_ml.ml_line_count - old_line_count; 4615 changed_lines(first_line, 0, last_line - i, i); 4616 } 4617 4618 outofmem: 4619 vim_free(sub_firstline); // may have to free allocated copy of the line 4620 4621 // ":s/pat//n" doesn't move the cursor 4622 if (subflags.do_count) 4623 curwin->w_cursor = old_cursor; 4624 4625 if (sub_nsubs > start_nsubs) 4626 { 4627 if (!cmdmod.lockmarks) 4628 { 4629 // Set the '[ and '] marks. 4630 curbuf->b_op_start.lnum = eap->line1; 4631 curbuf->b_op_end.lnum = line2; 4632 curbuf->b_op_start.col = curbuf->b_op_end.col = 0; 4633 } 4634 4635 if (!global_busy) 4636 { 4637 // when interactive leave cursor on the match 4638 if (!subflags.do_ask) 4639 { 4640 if (endcolumn) 4641 coladvance((colnr_T)MAXCOL); 4642 else 4643 beginline(BL_WHITE | BL_FIX); 4644 } 4645 if (!do_sub_msg(subflags.do_count) && subflags.do_ask) 4646 msg(""); 4647 } 4648 else 4649 global_need_beginline = TRUE; 4650 if (subflags.do_print) 4651 print_line(curwin->w_cursor.lnum, 4652 subflags.do_number, subflags.do_list); 4653 } 4654 else if (!global_busy) 4655 { 4656 if (got_int) // interrupted 4657 emsg(_(e_interr)); 4658 else if (got_match) // did find something but nothing substituted 4659 msg(""); 4660 else if (subflags.do_error) // nothing found 4661 semsg(_(e_patnotf2), get_search_pat()); 4662 } 4663 4664 #ifdef FEAT_FOLDING 4665 if (subflags.do_ask && hasAnyFolding(curwin)) 4666 // Cursor position may require updating 4667 changed_window_setting(); 4668 #endif 4669 4670 vim_regfree(regmatch.regprog); 4671 4672 // Restore the flag values, they can be used for ":&&". 4673 subflags.do_all = save_do_all; 4674 subflags.do_ask = save_do_ask; 4675 } 4676 4677 /* 4678 * Give message for number of substitutions. 4679 * Can also be used after a ":global" command. 4680 * Return TRUE if a message was given. 4681 */ 4682 int 4683 do_sub_msg( 4684 int count_only) // used 'n' flag for ":s" 4685 { 4686 /* 4687 * Only report substitutions when: 4688 * - more than 'report' substitutions 4689 * - command was typed by user, or number of changed lines > 'report' 4690 * - giving messages is not disabled by 'lazyredraw' 4691 */ 4692 if (((sub_nsubs > p_report && (KeyTyped || sub_nlines > 1 || p_report < 1)) 4693 || count_only) 4694 && messaging()) 4695 { 4696 char *msg_single; 4697 char *msg_plural; 4698 4699 if (got_int) 4700 STRCPY(msg_buf, _("(Interrupted) ")); 4701 else 4702 *msg_buf = NUL; 4703 4704 msg_single = count_only 4705 ? NGETTEXT("%ld match on %ld line", 4706 "%ld matches on %ld line", sub_nsubs) 4707 : NGETTEXT("%ld substitution on %ld line", 4708 "%ld substitutions on %ld line", sub_nsubs); 4709 msg_plural = count_only 4710 ? NGETTEXT("%ld match on %ld lines", 4711 "%ld matches on %ld lines", sub_nsubs) 4712 : NGETTEXT("%ld substitution on %ld lines", 4713 "%ld substitutions on %ld lines", sub_nsubs); 4714 4715 vim_snprintf_add(msg_buf, sizeof(msg_buf), 4716 NGETTEXT(msg_single, msg_plural, sub_nlines), 4717 sub_nsubs, (long)sub_nlines); 4718 4719 if (msg(msg_buf)) 4720 // save message to display it after redraw 4721 set_keep_msg((char_u *)msg_buf, 0); 4722 return TRUE; 4723 } 4724 if (got_int) 4725 { 4726 emsg(_(e_interr)); 4727 return TRUE; 4728 } 4729 return FALSE; 4730 } 4731 4732 static void 4733 global_exe_one(char_u *cmd, linenr_T lnum) 4734 { 4735 curwin->w_cursor.lnum = lnum; 4736 curwin->w_cursor.col = 0; 4737 if (*cmd == NUL || *cmd == '\n') 4738 do_cmdline((char_u *)"p", NULL, NULL, DOCMD_NOWAIT); 4739 else 4740 do_cmdline(cmd, NULL, NULL, DOCMD_NOWAIT); 4741 } 4742 4743 /* 4744 * Execute a global command of the form: 4745 * 4746 * g/pattern/X : execute X on all lines where pattern matches 4747 * v/pattern/X : execute X on all lines where pattern does not match 4748 * 4749 * where 'X' is an EX command 4750 * 4751 * The command character (as well as the trailing slash) is optional, and 4752 * is assumed to be 'p' if missing. 4753 * 4754 * This is implemented in two passes: first we scan the file for the pattern and 4755 * set a mark for each line that (not) matches. Secondly we execute the command 4756 * for each line that has a mark. This is required because after deleting 4757 * lines we do not know where to search for the next match. 4758 */ 4759 void 4760 ex_global(exarg_T *eap) 4761 { 4762 linenr_T lnum; // line number according to old situation 4763 int ndone = 0; 4764 int type; // first char of cmd: 'v' or 'g' 4765 char_u *cmd; // command argument 4766 4767 char_u delim; // delimiter, normally '/' 4768 char_u *pat; 4769 regmmatch_T regmatch; 4770 int match; 4771 int which_pat; 4772 4773 // When nesting the command works on one line. This allows for 4774 // ":g/found/v/notfound/command". 4775 if (global_busy && (eap->line1 != 1 4776 || eap->line2 != curbuf->b_ml.ml_line_count)) 4777 { 4778 // will increment global_busy to break out of the loop 4779 emsg(_("E147: Cannot do :global recursive with a range")); 4780 return; 4781 } 4782 4783 if (eap->forceit) // ":global!" is like ":vglobal" 4784 type = 'v'; 4785 else 4786 type = *eap->cmd; 4787 cmd = eap->arg; 4788 which_pat = RE_LAST; // default: use last used regexp 4789 4790 /* 4791 * undocumented vi feature: 4792 * "\/" and "\?": use previous search pattern. 4793 * "\&": use previous substitute pattern. 4794 */ 4795 if (*cmd == '\\') 4796 { 4797 ++cmd; 4798 if (vim_strchr((char_u *)"/?&", *cmd) == NULL) 4799 { 4800 emsg(_(e_backslash)); 4801 return; 4802 } 4803 if (*cmd == '&') 4804 which_pat = RE_SUBST; // use previous substitute pattern 4805 else 4806 which_pat = RE_SEARCH; // use previous search pattern 4807 ++cmd; 4808 pat = (char_u *)""; 4809 } 4810 else if (*cmd == NUL) 4811 { 4812 emsg(_("E148: Regular expression missing from global")); 4813 return; 4814 } 4815 else 4816 { 4817 delim = *cmd; // get the delimiter 4818 if (delim) 4819 ++cmd; // skip delimiter if there is one 4820 pat = cmd; // remember start of pattern 4821 cmd = skip_regexp(cmd, delim, p_magic, &eap->arg); 4822 if (cmd[0] == delim) // end delimiter found 4823 *cmd++ = NUL; // replace it with a NUL 4824 } 4825 4826 if (search_regcomp(pat, RE_BOTH, which_pat, SEARCH_HIS, ®match) == FAIL) 4827 { 4828 emsg(_(e_invcmd)); 4829 return; 4830 } 4831 4832 if (global_busy) 4833 { 4834 lnum = curwin->w_cursor.lnum; 4835 match = vim_regexec_multi(®match, curwin, curbuf, lnum, 4836 (colnr_T)0, NULL, NULL); 4837 if ((type == 'g' && match) || (type == 'v' && !match)) 4838 global_exe_one(cmd, lnum); 4839 } 4840 else 4841 { 4842 /* 4843 * pass 1: set marks for each (not) matching line 4844 */ 4845 for (lnum = eap->line1; lnum <= eap->line2 && !got_int; ++lnum) 4846 { 4847 // a match on this line? 4848 match = vim_regexec_multi(®match, curwin, curbuf, lnum, 4849 (colnr_T)0, NULL, NULL); 4850 if ((type == 'g' && match) || (type == 'v' && !match)) 4851 { 4852 ml_setmarked(lnum); 4853 ndone++; 4854 } 4855 line_breakcheck(); 4856 } 4857 4858 /* 4859 * pass 2: execute the command for each line that has been marked 4860 */ 4861 if (got_int) 4862 msg(_(e_interr)); 4863 else if (ndone == 0) 4864 { 4865 if (type == 'v') 4866 smsg(_("Pattern found in every line: %s"), pat); 4867 else 4868 smsg(_("Pattern not found: %s"), pat); 4869 } 4870 else 4871 { 4872 #ifdef FEAT_CLIPBOARD 4873 start_global_changes(); 4874 #endif 4875 global_exe(cmd); 4876 #ifdef FEAT_CLIPBOARD 4877 end_global_changes(); 4878 #endif 4879 } 4880 4881 ml_clearmarked(); // clear rest of the marks 4882 } 4883 4884 vim_regfree(regmatch.regprog); 4885 } 4886 4887 /* 4888 * Execute "cmd" on lines marked with ml_setmarked(). 4889 */ 4890 void 4891 global_exe(char_u *cmd) 4892 { 4893 linenr_T old_lcount; // b_ml.ml_line_count before the command 4894 buf_T *old_buf = curbuf; // remember what buffer we started in 4895 linenr_T lnum; // line number according to old situation 4896 4897 /* 4898 * Set current position only once for a global command. 4899 * If global_busy is set, setpcmark() will not do anything. 4900 * If there is an error, global_busy will be incremented. 4901 */ 4902 setpcmark(); 4903 4904 // When the command writes a message, don't overwrite the command. 4905 msg_didout = TRUE; 4906 4907 sub_nsubs = 0; 4908 sub_nlines = 0; 4909 global_need_beginline = FALSE; 4910 global_busy = 1; 4911 old_lcount = curbuf->b_ml.ml_line_count; 4912 while (!got_int && (lnum = ml_firstmarked()) != 0 && global_busy == 1) 4913 { 4914 global_exe_one(cmd, lnum); 4915 ui_breakcheck(); 4916 } 4917 4918 global_busy = 0; 4919 if (global_need_beginline) 4920 beginline(BL_WHITE | BL_FIX); 4921 else 4922 check_cursor(); // cursor may be beyond the end of the line 4923 4924 // the cursor may not have moved in the text but a change in a previous 4925 // line may move it on the screen 4926 changed_line_abv_curs(); 4927 4928 // If it looks like no message was written, allow overwriting the 4929 // command with the report for number of changes. 4930 if (msg_col == 0 && msg_scrolled == 0) 4931 msg_didout = FALSE; 4932 4933 // If substitutes done, report number of substitutes, otherwise report 4934 // number of extra or deleted lines. 4935 // Don't report extra or deleted lines in the edge case where the buffer 4936 // we are in after execution is different from the buffer we started in. 4937 if (!do_sub_msg(FALSE) && curbuf == old_buf) 4938 msgmore(curbuf->b_ml.ml_line_count - old_lcount); 4939 } 4940 4941 #ifdef FEAT_VIMINFO 4942 /* 4943 * Get the previous substitute pattern. 4944 */ 4945 char_u * 4946 get_old_sub(void) 4947 { 4948 return old_sub; 4949 } 4950 4951 /* 4952 * Set the previous substitute pattern. "val" must be allocated. 4953 */ 4954 void 4955 set_old_sub(char_u *val) 4956 { 4957 vim_free(old_sub); 4958 old_sub = val; 4959 } 4960 #endif // FEAT_VIMINFO 4961 4962 #if defined(EXITFREE) || defined(PROTO) 4963 void 4964 free_old_sub(void) 4965 { 4966 vim_free(old_sub); 4967 } 4968 #endif 4969 4970 #if defined(FEAT_QUICKFIX) || defined(PROTO) 4971 /* 4972 * Set up for a tagpreview. 4973 * Makes the preview window the current window. 4974 * Return TRUE when it was created. 4975 */ 4976 int 4977 prepare_tagpreview( 4978 int undo_sync, // sync undo when leaving the window 4979 int use_previewpopup, // use popup if 'previewpopup' set 4980 use_popup_T use_popup) // use other popup window 4981 { 4982 win_T *wp; 4983 4984 # ifdef FEAT_GUI 4985 need_mouse_correct = TRUE; 4986 # endif 4987 4988 /* 4989 * If there is already a preview window open, use that one. 4990 */ 4991 if (!curwin->w_p_pvw) 4992 { 4993 # ifdef FEAT_PROP_POPUP 4994 if (use_previewpopup && *p_pvp != NUL) 4995 { 4996 wp = popup_find_preview_window(); 4997 if (wp != NULL) 4998 popup_set_wantpos_cursor(wp, wp->w_minwidth, NULL); 4999 } 5000 else if (use_popup != USEPOPUP_NONE) 5001 { 5002 wp = popup_find_info_window(); 5003 if (wp != NULL) 5004 { 5005 if (use_popup == USEPOPUP_NORMAL) 5006 popup_show(wp); 5007 else 5008 popup_hide(wp); 5009 // When the popup moves or resizes it may reveal part of 5010 // another window. TODO: can this be done more efficiently? 5011 redraw_all_later(NOT_VALID); 5012 } 5013 } 5014 else 5015 # endif 5016 { 5017 FOR_ALL_WINDOWS(wp) 5018 if (wp->w_p_pvw) 5019 break; 5020 } 5021 if (wp != NULL) 5022 win_enter(wp, undo_sync); 5023 else 5024 { 5025 /* 5026 * There is no preview window open yet. Create one. 5027 */ 5028 # ifdef FEAT_PROP_POPUP 5029 if ((use_previewpopup && *p_pvp != NUL) 5030 || use_popup != USEPOPUP_NONE) 5031 return popup_create_preview_window(use_popup != USEPOPUP_NONE); 5032 # endif 5033 if (win_split(g_do_tagpreview > 0 ? g_do_tagpreview : 0, 0) == FAIL) 5034 return FALSE; 5035 curwin->w_p_pvw = TRUE; 5036 curwin->w_p_wfh = TRUE; 5037 RESET_BINDING(curwin); // don't take over 'scrollbind' 5038 // and 'cursorbind' 5039 # ifdef FEAT_DIFF 5040 curwin->w_p_diff = FALSE; // no 'diff' 5041 # endif 5042 # ifdef FEAT_FOLDING 5043 curwin->w_p_fdc = 0; // no 'foldcolumn' 5044 # endif 5045 return TRUE; 5046 } 5047 } 5048 return FALSE; 5049 } 5050 5051 #endif 5052 5053 5054 /* 5055 * ":help": open a read-only window on a help file 5056 */ 5057 void 5058 ex_help(exarg_T *eap) 5059 { 5060 char_u *arg; 5061 char_u *tag; 5062 FILE *helpfd; // file descriptor of help file 5063 int n; 5064 int i; 5065 win_T *wp; 5066 int num_matches; 5067 char_u **matches; 5068 char_u *p; 5069 int empty_fnum = 0; 5070 int alt_fnum = 0; 5071 buf_T *buf; 5072 #ifdef FEAT_MULTI_LANG 5073 int len; 5074 char_u *lang; 5075 #endif 5076 #ifdef FEAT_FOLDING 5077 int old_KeyTyped = KeyTyped; 5078 #endif 5079 5080 if (eap != NULL) 5081 { 5082 /* 5083 * A ":help" command ends at the first LF, or at a '|' that is 5084 * followed by some text. Set nextcmd to the following command. 5085 */ 5086 for (arg = eap->arg; *arg; ++arg) 5087 { 5088 if (*arg == '\n' || *arg == '\r' 5089 || (*arg == '|' && arg[1] != NUL && arg[1] != '|')) 5090 { 5091 *arg++ = NUL; 5092 eap->nextcmd = arg; 5093 break; 5094 } 5095 } 5096 arg = eap->arg; 5097 5098 if (eap->forceit && *arg == NUL && !curbuf->b_help) 5099 { 5100 emsg(_("E478: Don't panic!")); 5101 return; 5102 } 5103 5104 if (eap->skip) // not executing commands 5105 return; 5106 } 5107 else 5108 arg = (char_u *)""; 5109 5110 // remove trailing blanks 5111 p = arg + STRLEN(arg) - 1; 5112 while (p > arg && VIM_ISWHITE(*p) && p[-1] != '\\') 5113 *p-- = NUL; 5114 5115 #ifdef FEAT_MULTI_LANG 5116 // Check for a specified language 5117 lang = check_help_lang(arg); 5118 #endif 5119 5120 // When no argument given go to the index. 5121 if (*arg == NUL) 5122 arg = (char_u *)"help.txt"; 5123 5124 /* 5125 * Check if there is a match for the argument. 5126 */ 5127 n = find_help_tags(arg, &num_matches, &matches, 5128 eap != NULL && eap->forceit); 5129 5130 i = 0; 5131 #ifdef FEAT_MULTI_LANG 5132 if (n != FAIL && lang != NULL) 5133 // Find first item with the requested language. 5134 for (i = 0; i < num_matches; ++i) 5135 { 5136 len = (int)STRLEN(matches[i]); 5137 if (len > 3 && matches[i][len - 3] == '@' 5138 && STRICMP(matches[i] + len - 2, lang) == 0) 5139 break; 5140 } 5141 #endif 5142 if (i >= num_matches || n == FAIL) 5143 { 5144 #ifdef FEAT_MULTI_LANG 5145 if (lang != NULL) 5146 semsg(_("E661: Sorry, no '%s' help for %s"), lang, arg); 5147 else 5148 #endif 5149 semsg(_("E149: Sorry, no help for %s"), arg); 5150 if (n != FAIL) 5151 FreeWild(num_matches, matches); 5152 return; 5153 } 5154 5155 // The first match (in the requested language) is the best match. 5156 tag = vim_strsave(matches[i]); 5157 FreeWild(num_matches, matches); 5158 5159 #ifdef FEAT_GUI 5160 need_mouse_correct = TRUE; 5161 #endif 5162 5163 /* 5164 * Re-use an existing help window or open a new one. 5165 * Always open a new one for ":tab help". 5166 */ 5167 if (!bt_help(curwin->w_buffer) || cmdmod.tab != 0) 5168 { 5169 if (cmdmod.tab != 0) 5170 wp = NULL; 5171 else 5172 FOR_ALL_WINDOWS(wp) 5173 if (bt_help(wp->w_buffer)) 5174 break; 5175 if (wp != NULL && wp->w_buffer->b_nwindows > 0) 5176 win_enter(wp, TRUE); 5177 else 5178 { 5179 /* 5180 * There is no help window yet. 5181 * Try to open the file specified by the "helpfile" option. 5182 */ 5183 if ((helpfd = mch_fopen((char *)p_hf, READBIN)) == NULL) 5184 { 5185 smsg(_("Sorry, help file \"%s\" not found"), p_hf); 5186 goto erret; 5187 } 5188 fclose(helpfd); 5189 5190 // Split off help window; put it at far top if no position 5191 // specified, the current window is vertically split and 5192 // narrow. 5193 n = WSP_HELP; 5194 if (cmdmod.split == 0 && curwin->w_width != Columns 5195 && curwin->w_width < 80) 5196 n |= WSP_TOP; 5197 if (win_split(0, n) == FAIL) 5198 goto erret; 5199 5200 if (curwin->w_height < p_hh) 5201 win_setheight((int)p_hh); 5202 5203 /* 5204 * Open help file (do_ecmd() will set b_help flag, readfile() will 5205 * set b_p_ro flag). 5206 * Set the alternate file to the previously edited file. 5207 */ 5208 alt_fnum = curbuf->b_fnum; 5209 (void)do_ecmd(0, NULL, NULL, NULL, ECMD_LASTL, 5210 ECMD_HIDE + ECMD_SET_HELP, 5211 NULL); // buffer is still open, don't store info 5212 if (!cmdmod.keepalt) 5213 curwin->w_alt_fnum = alt_fnum; 5214 empty_fnum = curbuf->b_fnum; 5215 } 5216 } 5217 5218 if (!p_im) 5219 restart_edit = 0; // don't want insert mode in help file 5220 5221 #ifdef FEAT_FOLDING 5222 // Restore KeyTyped, setting 'filetype=help' may reset it. 5223 // It is needed for do_tag top open folds under the cursor. 5224 KeyTyped = old_KeyTyped; 5225 #endif 5226 5227 if (tag != NULL) 5228 do_tag(tag, DT_HELP, 1, FALSE, TRUE); 5229 5230 // Delete the empty buffer if we're not using it. Careful: autocommands 5231 // may have jumped to another window, check that the buffer is not in a 5232 // window. 5233 if (empty_fnum != 0 && curbuf->b_fnum != empty_fnum) 5234 { 5235 buf = buflist_findnr(empty_fnum); 5236 if (buf != NULL && buf->b_nwindows == 0) 5237 wipe_buffer(buf, TRUE); 5238 } 5239 5240 // keep the previous alternate file 5241 if (alt_fnum != 0 && curwin->w_alt_fnum == empty_fnum && !cmdmod.keepalt) 5242 curwin->w_alt_fnum = alt_fnum; 5243 5244 erret: 5245 vim_free(tag); 5246 } 5247 5248 /* 5249 * ":helpclose": Close one help window 5250 */ 5251 void 5252 ex_helpclose(exarg_T *eap UNUSED) 5253 { 5254 win_T *win; 5255 5256 FOR_ALL_WINDOWS(win) 5257 { 5258 if (bt_help(win->w_buffer)) 5259 { 5260 win_close(win, FALSE); 5261 return; 5262 } 5263 } 5264 } 5265 5266 #if defined(FEAT_MULTI_LANG) || defined(PROTO) 5267 /* 5268 * In an argument search for a language specifiers in the form "@xx". 5269 * Changes the "@" to NUL if found, and returns a pointer to "xx". 5270 * Returns NULL if not found. 5271 */ 5272 char_u * 5273 check_help_lang(char_u *arg) 5274 { 5275 int len = (int)STRLEN(arg); 5276 5277 if (len >= 3 && arg[len - 3] == '@' && ASCII_ISALPHA(arg[len - 2]) 5278 && ASCII_ISALPHA(arg[len - 1])) 5279 { 5280 arg[len - 3] = NUL; // remove the '@' 5281 return arg + len - 2; 5282 } 5283 return NULL; 5284 } 5285 #endif 5286 5287 /* 5288 * Return a heuristic indicating how well the given string matches. The 5289 * smaller the number, the better the match. This is the order of priorities, 5290 * from best match to worst match: 5291 * - Match with least alpha-numeric characters is better. 5292 * - Match with least total characters is better. 5293 * - Match towards the start is better. 5294 * - Match starting with "+" is worse (feature instead of command) 5295 * Assumption is made that the matched_string passed has already been found to 5296 * match some string for which help is requested. webb. 5297 */ 5298 int 5299 help_heuristic( 5300 char_u *matched_string, 5301 int offset, // offset for match 5302 int wrong_case) // no matching case 5303 { 5304 int num_letters; 5305 char_u *p; 5306 5307 num_letters = 0; 5308 for (p = matched_string; *p; p++) 5309 if (ASCII_ISALNUM(*p)) 5310 num_letters++; 5311 5312 /* 5313 * Multiply the number of letters by 100 to give it a much bigger 5314 * weighting than the number of characters. 5315 * If there only is a match while ignoring case, add 5000. 5316 * If the match starts in the middle of a word, add 10000 to put it 5317 * somewhere in the last half. 5318 * If the match is more than 2 chars from the start, multiply by 200 to 5319 * put it after matches at the start. 5320 */ 5321 if (ASCII_ISALNUM(matched_string[offset]) && offset > 0 5322 && ASCII_ISALNUM(matched_string[offset - 1])) 5323 offset += 10000; 5324 else if (offset > 2) 5325 offset *= 200; 5326 if (wrong_case) 5327 offset += 5000; 5328 // Features are less interesting than the subjects themselves, but "+" 5329 // alone is not a feature. 5330 if (matched_string[0] == '+' && matched_string[1] != NUL) 5331 offset += 100; 5332 return (int)(100 * num_letters + STRLEN(matched_string) + offset); 5333 } 5334 5335 /* 5336 * Compare functions for qsort() below, that checks the help heuristics number 5337 * that has been put after the tagname by find_tags(). 5338 */ 5339 static int 5340 help_compare(const void *s1, const void *s2) 5341 { 5342 char *p1; 5343 char *p2; 5344 int cmp; 5345 5346 p1 = *(char **)s1 + strlen(*(char **)s1) + 1; 5347 p2 = *(char **)s2 + strlen(*(char **)s2) + 1; 5348 5349 // Compare by help heuristic number first. 5350 cmp = strcmp(p1, p2); 5351 if (cmp != 0) 5352 return cmp; 5353 5354 // Compare by strings as tie-breaker when same heuristic number. 5355 return strcmp(*(char **)s1, *(char **)s2); 5356 } 5357 5358 /* 5359 * Find all help tags matching "arg", sort them and return in matches[], with 5360 * the number of matches in num_matches. 5361 * The matches will be sorted with a "best" match algorithm. 5362 * When "keep_lang" is TRUE try keeping the language of the current buffer. 5363 */ 5364 int 5365 find_help_tags( 5366 char_u *arg, 5367 int *num_matches, 5368 char_u ***matches, 5369 int keep_lang) 5370 { 5371 char_u *s, *d; 5372 int i; 5373 static char *(mtable[]) = {"*", "g*", "[*", "]*", ":*", 5374 "/*", "/\\*", "\"*", "**", 5375 "cpo-*", "/\\(\\)", "/\\%(\\)", 5376 "?", ":?", "?<CR>", "g?", "g?g?", "g??", 5377 "-?", "q?", "v_g?", 5378 "/\\?", "/\\z(\\)", "\\=", ":s\\=", 5379 "[count]", "[quotex]", 5380 "[range]", ":[range]", 5381 "[pattern]", "\\|", "\\%$", 5382 "s/\\~", "s/\\U", "s/\\L", 5383 "s/\\1", "s/\\2", "s/\\3", "s/\\9"}; 5384 static char *(rtable[]) = {"star", "gstar", "[star", "]star", ":star", 5385 "/star", "/\\\\star", "quotestar", "starstar", 5386 "cpo-star", "/\\\\(\\\\)", "/\\\\%(\\\\)", 5387 "?", ":?", "?<CR>", "g?", "g?g?", "g??", 5388 "-?", "q?", "v_g?", 5389 "/\\\\?", "/\\\\z(\\\\)", "\\\\=", ":s\\\\=", 5390 "\\[count]", "\\[quotex]", 5391 "\\[range]", ":\\[range]", 5392 "\\[pattern]", "\\\\bar", "/\\\\%\\$", 5393 "s/\\\\\\~", "s/\\\\U", "s/\\\\L", 5394 "s/\\\\1", "s/\\\\2", "s/\\\\3", "s/\\\\9"}; 5395 static char *(expr_table[]) = {"!=?", "!~?", "<=?", "<?", "==?", "=~?", 5396 ">=?", ">?", "is?", "isnot?"}; 5397 int flags; 5398 5399 d = IObuff; // assume IObuff is long enough! 5400 5401 if (STRNICMP(arg, "expr-", 5) == 0) 5402 { 5403 // When the string starting with "expr-" and containing '?' and matches 5404 // the table, it is taken literally (but ~ is escaped). Otherwise '?' 5405 // is recognized as a wildcard. 5406 for (i = (int)(sizeof(expr_table) / sizeof(char *)); --i >= 0; ) 5407 if (STRCMP(arg + 5, expr_table[i]) == 0) 5408 { 5409 int si = 0, di = 0; 5410 5411 for (;;) 5412 { 5413 if (arg[si] == '~') 5414 d[di++] = '\\'; 5415 d[di++] = arg[si]; 5416 if (arg[si] == NUL) 5417 break; 5418 ++si; 5419 } 5420 break; 5421 } 5422 } 5423 else 5424 { 5425 // Recognize a few exceptions to the rule. Some strings that contain 5426 // '*' with "star". Otherwise '*' is recognized as a wildcard. 5427 for (i = (int)(sizeof(mtable) / sizeof(char *)); --i >= 0; ) 5428 if (STRCMP(arg, mtable[i]) == 0) 5429 { 5430 STRCPY(d, rtable[i]); 5431 break; 5432 } 5433 } 5434 5435 if (i < 0) // no match in table 5436 { 5437 // Replace "\S" with "/\\S", etc. Otherwise every tag is matched. 5438 // Also replace "\%^" and "\%(", they match every tag too. 5439 // Also "\zs", "\z1", etc. 5440 // Also "\@<", "\@=", "\@<=", etc. 5441 // And also "\_$" and "\_^". 5442 if (arg[0] == '\\' 5443 && ((arg[1] != NUL && arg[2] == NUL) 5444 || (vim_strchr((char_u *)"%_z@", arg[1]) != NULL 5445 && arg[2] != NUL))) 5446 { 5447 STRCPY(d, "/\\\\"); 5448 STRCPY(d + 3, arg + 1); 5449 // Check for "/\\_$", should be "/\\_\$" 5450 if (d[3] == '_' && d[4] == '$') 5451 STRCPY(d + 4, "\\$"); 5452 } 5453 else 5454 { 5455 // Replace: 5456 // "[:...:]" with "\[:...:]" 5457 // "[++...]" with "\[++...]" 5458 // "\{" with "\\{" -- matching "} \}" 5459 if ((arg[0] == '[' && (arg[1] == ':' 5460 || (arg[1] == '+' && arg[2] == '+'))) 5461 || (arg[0] == '\\' && arg[1] == '{')) 5462 *d++ = '\\'; 5463 5464 /* 5465 * If tag starts with "('", skip the "(". Fixes CTRL-] on ('option'. 5466 */ 5467 if (*arg == '(' && arg[1] == '\'') 5468 arg++; 5469 for (s = arg; *s; ++s) 5470 { 5471 /* 5472 * Replace "|" with "bar" and '"' with "quote" to match the name of 5473 * the tags for these commands. 5474 * Replace "*" with ".*" and "?" with "." to match command line 5475 * completion. 5476 * Insert a backslash before '~', '$' and '.' to avoid their 5477 * special meaning. 5478 */ 5479 if (d - IObuff > IOSIZE - 10) // getting too long!? 5480 break; 5481 switch (*s) 5482 { 5483 case '|': STRCPY(d, "bar"); 5484 d += 3; 5485 continue; 5486 case '"': STRCPY(d, "quote"); 5487 d += 5; 5488 continue; 5489 case '*': *d++ = '.'; 5490 break; 5491 case '?': *d++ = '.'; 5492 continue; 5493 case '$': 5494 case '.': 5495 case '~': *d++ = '\\'; 5496 break; 5497 } 5498 5499 /* 5500 * Replace "^x" by "CTRL-X". Don't do this for "^_" to make 5501 * ":help i_^_CTRL-D" work. 5502 * Insert '-' before and after "CTRL-X" when applicable. 5503 */ 5504 if (*s < ' ' || (*s == '^' && s[1] && (ASCII_ISALPHA(s[1]) 5505 || vim_strchr((char_u *)"?@[\\]^", s[1]) != NULL))) 5506 { 5507 if (d > IObuff && d[-1] != '_' && d[-1] != '\\') 5508 *d++ = '_'; // prepend a '_' to make x_CTRL-x 5509 STRCPY(d, "CTRL-"); 5510 d += 5; 5511 if (*s < ' ') 5512 { 5513 #ifdef EBCDIC 5514 *d++ = CtrlChar(*s); 5515 #else 5516 *d++ = *s + '@'; 5517 #endif 5518 if (d[-1] == '\\') 5519 *d++ = '\\'; // double a backslash 5520 } 5521 else 5522 *d++ = *++s; 5523 if (s[1] != NUL && s[1] != '_') 5524 *d++ = '_'; // append a '_' 5525 continue; 5526 } 5527 else if (*s == '^') // "^" or "CTRL-^" or "^_" 5528 *d++ = '\\'; 5529 5530 /* 5531 * Insert a backslash before a backslash after a slash, for search 5532 * pattern tags: "/\|" --> "/\\|". 5533 */ 5534 else if (s[0] == '\\' && s[1] != '\\' 5535 && *arg == '/' && s == arg + 1) 5536 *d++ = '\\'; 5537 5538 // "CTRL-\_" -> "CTRL-\\_" to avoid the special meaning of "\_" in 5539 // "CTRL-\_CTRL-N" 5540 if (STRNICMP(s, "CTRL-\\_", 7) == 0) 5541 { 5542 STRCPY(d, "CTRL-\\\\"); 5543 d += 7; 5544 s += 6; 5545 } 5546 5547 *d++ = *s; 5548 5549 /* 5550 * If tag contains "({" or "([", tag terminates at the "(". 5551 * This is for help on functions, e.g.: abs({expr}). 5552 */ 5553 if (*s == '(' && (s[1] == '{' || s[1] =='[')) 5554 break; 5555 5556 /* 5557 * If tag starts with ', toss everything after a second '. Fixes 5558 * CTRL-] on 'option'. (would include the trailing '.'). 5559 */ 5560 if (*s == '\'' && s > arg && *arg == '\'') 5561 break; 5562 // Also '{' and '}'. 5563 if (*s == '}' && s > arg && *arg == '{') 5564 break; 5565 } 5566 *d = NUL; 5567 5568 if (*IObuff == '`') 5569 { 5570 if (d > IObuff + 2 && d[-1] == '`') 5571 { 5572 // remove the backticks from `command` 5573 mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff)); 5574 d[-2] = NUL; 5575 } 5576 else if (d > IObuff + 3 && d[-2] == '`' && d[-1] == ',') 5577 { 5578 // remove the backticks and comma from `command`, 5579 mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff)); 5580 d[-3] = NUL; 5581 } 5582 else if (d > IObuff + 4 && d[-3] == '`' 5583 && d[-2] == '\\' && d[-1] == '.') 5584 { 5585 // remove the backticks and dot from `command`\. 5586 mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff)); 5587 d[-4] = NUL; 5588 } 5589 } 5590 } 5591 } 5592 5593 *matches = (char_u **)""; 5594 *num_matches = 0; 5595 flags = TAG_HELP | TAG_REGEXP | TAG_NAMES | TAG_VERBOSE | TAG_NO_TAGFUNC; 5596 if (keep_lang) 5597 flags |= TAG_KEEP_LANG; 5598 if (find_tags(IObuff, num_matches, matches, flags, (int)MAXCOL, NULL) == OK 5599 && *num_matches > 0) 5600 { 5601 // Sort the matches found on the heuristic number that is after the 5602 // tag name. 5603 qsort((void *)*matches, (size_t)*num_matches, 5604 sizeof(char_u *), help_compare); 5605 // Delete more than TAG_MANY to reduce the size of the listing. 5606 while (*num_matches > TAG_MANY) 5607 vim_free((*matches)[--*num_matches]); 5608 } 5609 return OK; 5610 } 5611 5612 /* 5613 * Called when starting to edit a buffer for a help file. 5614 */ 5615 static void 5616 prepare_help_buffer(void) 5617 { 5618 char_u *p; 5619 5620 curbuf->b_help = TRUE; 5621 #ifdef FEAT_QUICKFIX 5622 set_string_option_direct((char_u *)"buftype", -1, 5623 (char_u *)"help", OPT_FREE|OPT_LOCAL, 0); 5624 #endif 5625 5626 /* 5627 * Always set these options after jumping to a help tag, because the 5628 * user may have an autocommand that gets in the way. 5629 * Accept all ASCII chars for keywords, except ' ', '*', '"', '|', and 5630 * latin1 word characters (for translated help files). 5631 * Only set it when needed, buf_init_chartab() is some work. 5632 */ 5633 p = 5634 #ifdef EBCDIC 5635 (char_u *)"65-255,^*,^|,^\""; 5636 #else 5637 (char_u *)"!-~,^*,^|,^\",192-255"; 5638 #endif 5639 if (STRCMP(curbuf->b_p_isk, p) != 0) 5640 { 5641 set_string_option_direct((char_u *)"isk", -1, p, OPT_FREE|OPT_LOCAL, 0); 5642 check_buf_options(curbuf); 5643 (void)buf_init_chartab(curbuf, FALSE); 5644 } 5645 5646 #ifdef FEAT_FOLDING 5647 // Don't use the global foldmethod. 5648 set_string_option_direct((char_u *)"fdm", -1, (char_u *)"manual", 5649 OPT_FREE|OPT_LOCAL, 0); 5650 #endif 5651 5652 curbuf->b_p_ts = 8; // 'tabstop' is 8 5653 curwin->w_p_list = FALSE; // no list mode 5654 5655 curbuf->b_p_ma = FALSE; // not modifiable 5656 curbuf->b_p_bin = FALSE; // reset 'bin' before reading file 5657 curwin->w_p_nu = 0; // no line numbers 5658 curwin->w_p_rnu = 0; // no relative line numbers 5659 RESET_BINDING(curwin); // no scroll or cursor binding 5660 #ifdef FEAT_ARABIC 5661 curwin->w_p_arab = FALSE; // no arabic mode 5662 #endif 5663 #ifdef FEAT_RIGHTLEFT 5664 curwin->w_p_rl = FALSE; // help window is left-to-right 5665 #endif 5666 #ifdef FEAT_FOLDING 5667 curwin->w_p_fen = FALSE; // No folding in the help window 5668 #endif 5669 #ifdef FEAT_DIFF 5670 curwin->w_p_diff = FALSE; // No 'diff' 5671 #endif 5672 #ifdef FEAT_SPELL 5673 curwin->w_p_spell = FALSE; // No spell checking 5674 #endif 5675 5676 set_buflisted(FALSE); 5677 } 5678 5679 /* 5680 * After reading a help file: May cleanup a help buffer when syntax 5681 * highlighting is not used. 5682 */ 5683 void 5684 fix_help_buffer(void) 5685 { 5686 linenr_T lnum; 5687 char_u *line; 5688 int in_example = FALSE; 5689 int len; 5690 char_u *fname; 5691 char_u *p; 5692 char_u *rt; 5693 int mustfree; 5694 5695 // Set filetype to "help" if still needed. 5696 if (STRCMP(curbuf->b_p_ft, "help") != 0) 5697 { 5698 ++curbuf_lock; 5699 set_option_value((char_u *)"ft", 0L, (char_u *)"help", OPT_LOCAL); 5700 --curbuf_lock; 5701 } 5702 5703 #ifdef FEAT_SYN_HL 5704 if (!syntax_present(curwin)) 5705 #endif 5706 { 5707 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) 5708 { 5709 line = ml_get_buf(curbuf, lnum, FALSE); 5710 len = (int)STRLEN(line); 5711 if (in_example && len > 0 && !VIM_ISWHITE(line[0])) 5712 { 5713 // End of example: non-white or '<' in first column. 5714 if (line[0] == '<') 5715 { 5716 // blank-out a '<' in the first column 5717 line = ml_get_buf(curbuf, lnum, TRUE); 5718 line[0] = ' '; 5719 } 5720 in_example = FALSE; 5721 } 5722 if (!in_example && len > 0) 5723 { 5724 if (line[len - 1] == '>' && (len == 1 || line[len - 2] == ' ')) 5725 { 5726 // blank-out a '>' in the last column (start of example) 5727 line = ml_get_buf(curbuf, lnum, TRUE); 5728 line[len - 1] = ' '; 5729 in_example = TRUE; 5730 } 5731 else if (line[len - 1] == '~') 5732 { 5733 // blank-out a '~' at the end of line (header marker) 5734 line = ml_get_buf(curbuf, lnum, TRUE); 5735 line[len - 1] = ' '; 5736 } 5737 } 5738 } 5739 } 5740 5741 /* 5742 * In the "help.txt" and "help.abx" file, add the locally added help 5743 * files. This uses the very first line in the help file. 5744 */ 5745 fname = gettail(curbuf->b_fname); 5746 if (fnamecmp(fname, "help.txt") == 0 5747 #ifdef FEAT_MULTI_LANG 5748 || (fnamencmp(fname, "help.", 5) == 0 5749 && ASCII_ISALPHA(fname[5]) 5750 && ASCII_ISALPHA(fname[6]) 5751 && TOLOWER_ASC(fname[7]) == 'x' 5752 && fname[8] == NUL) 5753 #endif 5754 ) 5755 { 5756 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum) 5757 { 5758 line = ml_get_buf(curbuf, lnum, FALSE); 5759 if (strstr((char *)line, "*local-additions*") == NULL) 5760 continue; 5761 5762 // Go through all directories in 'runtimepath', skipping 5763 // $VIMRUNTIME. 5764 p = p_rtp; 5765 while (*p != NUL) 5766 { 5767 copy_option_part(&p, NameBuff, MAXPATHL, ","); 5768 mustfree = FALSE; 5769 rt = vim_getenv((char_u *)"VIMRUNTIME", &mustfree); 5770 if (rt != NULL && 5771 fullpathcmp(rt, NameBuff, FALSE, TRUE) != FPC_SAME) 5772 { 5773 int fcount; 5774 char_u **fnames; 5775 FILE *fd; 5776 char_u *s; 5777 int fi; 5778 vimconv_T vc; 5779 char_u *cp; 5780 5781 // Find all "doc/ *.txt" files in this directory. 5782 add_pathsep(NameBuff); 5783 #ifdef FEAT_MULTI_LANG 5784 STRCAT(NameBuff, "doc/*.??[tx]"); 5785 #else 5786 STRCAT(NameBuff, "doc/*.txt"); 5787 #endif 5788 if (gen_expand_wildcards(1, &NameBuff, &fcount, 5789 &fnames, EW_FILE|EW_SILENT) == OK 5790 && fcount > 0) 5791 { 5792 #ifdef FEAT_MULTI_LANG 5793 int i1, i2; 5794 char_u *f1, *f2; 5795 char_u *t1, *t2; 5796 char_u *e1, *e2; 5797 5798 // If foo.abx is found use it instead of foo.txt in 5799 // the same directory. 5800 for (i1 = 0; i1 < fcount; ++i1) 5801 { 5802 for (i2 = 0; i2 < fcount; ++i2) 5803 { 5804 if (i1 == i2) 5805 continue; 5806 if (fnames[i1] == NULL || fnames[i2] == NULL) 5807 continue; 5808 f1 = fnames[i1]; 5809 f2 = fnames[i2]; 5810 t1 = gettail(f1); 5811 t2 = gettail(f2); 5812 e1 = vim_strrchr(t1, '.'); 5813 e2 = vim_strrchr(t2, '.'); 5814 if (e1 == NULL || e2 == NULL) 5815 continue; 5816 if (fnamecmp(e1, ".txt") != 0 5817 && fnamecmp(e1, fname + 4) != 0) 5818 { 5819 // Not .txt and not .abx, remove it. 5820 VIM_CLEAR(fnames[i1]); 5821 continue; 5822 } 5823 if (e1 - f1 != e2 - f2 5824 || fnamencmp(f1, f2, e1 - f1) != 0) 5825 continue; 5826 if (fnamecmp(e1, ".txt") == 0 5827 && fnamecmp(e2, fname + 4) == 0) 5828 // use .abx instead of .txt 5829 VIM_CLEAR(fnames[i1]); 5830 } 5831 } 5832 #endif 5833 for (fi = 0; fi < fcount; ++fi) 5834 { 5835 if (fnames[fi] == NULL) 5836 continue; 5837 fd = mch_fopen((char *)fnames[fi], "r"); 5838 if (fd != NULL) 5839 { 5840 vim_fgets(IObuff, IOSIZE, fd); 5841 if (IObuff[0] == '*' 5842 && (s = vim_strchr(IObuff + 1, '*')) 5843 != NULL) 5844 { 5845 int this_utf = MAYBE; 5846 5847 // Change tag definition to a 5848 // reference and remove <CR>/<NL>. 5849 IObuff[0] = '|'; 5850 *s = '|'; 5851 while (*s != NUL) 5852 { 5853 if (*s == '\r' || *s == '\n') 5854 *s = NUL; 5855 // The text is utf-8 when a byte 5856 // above 127 is found and no 5857 // illegal byte sequence is found. 5858 if (*s >= 0x80 && this_utf != FALSE) 5859 { 5860 int l; 5861 5862 this_utf = TRUE; 5863 l = utf_ptr2len(s); 5864 if (l == 1) 5865 this_utf = FALSE; 5866 s += l - 1; 5867 } 5868 ++s; 5869 } 5870 5871 // The help file is latin1 or utf-8; 5872 // conversion to the current 5873 // 'encoding' may be required. 5874 vc.vc_type = CONV_NONE; 5875 convert_setup(&vc, (char_u *)( 5876 this_utf == TRUE ? "utf-8" 5877 : "latin1"), p_enc); 5878 if (vc.vc_type == CONV_NONE) 5879 // No conversion needed. 5880 cp = IObuff; 5881 else 5882 { 5883 // Do the conversion. If it fails 5884 // use the unconverted text. 5885 cp = string_convert(&vc, IObuff, 5886 NULL); 5887 if (cp == NULL) 5888 cp = IObuff; 5889 } 5890 convert_setup(&vc, NULL, NULL); 5891 5892 ml_append(lnum, cp, (colnr_T)0, FALSE); 5893 if (cp != IObuff) 5894 vim_free(cp); 5895 ++lnum; 5896 } 5897 fclose(fd); 5898 } 5899 } 5900 FreeWild(fcount, fnames); 5901 } 5902 } 5903 if (mustfree) 5904 vim_free(rt); 5905 } 5906 break; 5907 } 5908 } 5909 } 5910 5911 /* 5912 * ":exusage" 5913 */ 5914 void 5915 ex_exusage(exarg_T *eap UNUSED) 5916 { 5917 do_cmdline_cmd((char_u *)"help ex-cmd-index"); 5918 } 5919 5920 /* 5921 * ":viusage" 5922 */ 5923 void 5924 ex_viusage(exarg_T *eap UNUSED) 5925 { 5926 do_cmdline_cmd((char_u *)"help normal-index"); 5927 } 5928 5929 /* 5930 * Generate tags in one help directory. 5931 */ 5932 static void 5933 helptags_one( 5934 char_u *dir, // doc directory 5935 char_u *ext, // suffix, ".txt", ".itx", ".frx", etc. 5936 char_u *tagfname, // "tags" for English, "tags-fr" for French. 5937 int add_help_tags) // add "help-tags" tag 5938 { 5939 FILE *fd_tags; 5940 FILE *fd; 5941 garray_T ga; 5942 int filecount; 5943 char_u **files; 5944 char_u *p1, *p2; 5945 int fi; 5946 char_u *s; 5947 int i; 5948 char_u *fname; 5949 int dirlen; 5950 int utf8 = MAYBE; 5951 int this_utf8; 5952 int firstline; 5953 int mix = FALSE; // detected mixed encodings 5954 5955 /* 5956 * Find all *.txt files. 5957 */ 5958 dirlen = (int)STRLEN(dir); 5959 STRCPY(NameBuff, dir); 5960 STRCAT(NameBuff, "/**/*"); 5961 STRCAT(NameBuff, ext); 5962 if (gen_expand_wildcards(1, &NameBuff, &filecount, &files, 5963 EW_FILE|EW_SILENT) == FAIL 5964 || filecount == 0) 5965 { 5966 if (!got_int) 5967 semsg(_("E151: No match: %s"), NameBuff); 5968 return; 5969 } 5970 5971 /* 5972 * Open the tags file for writing. 5973 * Do this before scanning through all the files. 5974 */ 5975 STRCPY(NameBuff, dir); 5976 add_pathsep(NameBuff); 5977 STRCAT(NameBuff, tagfname); 5978 fd_tags = mch_fopen((char *)NameBuff, "w"); 5979 if (fd_tags == NULL) 5980 { 5981 semsg(_("E152: Cannot open %s for writing"), NameBuff); 5982 FreeWild(filecount, files); 5983 return; 5984 } 5985 5986 /* 5987 * If using the "++t" argument or generating tags for "$VIMRUNTIME/doc" 5988 * add the "help-tags" tag. 5989 */ 5990 ga_init2(&ga, (int)sizeof(char_u *), 100); 5991 if (add_help_tags || fullpathcmp((char_u *)"$VIMRUNTIME/doc", 5992 dir, FALSE, TRUE) == FPC_SAME) 5993 { 5994 if (ga_grow(&ga, 1) == FAIL) 5995 got_int = TRUE; 5996 else 5997 { 5998 s = alloc(18 + (unsigned)STRLEN(tagfname)); 5999 if (s == NULL) 6000 got_int = TRUE; 6001 else 6002 { 6003 sprintf((char *)s, "help-tags\t%s\t1\n", tagfname); 6004 ((char_u **)ga.ga_data)[ga.ga_len] = s; 6005 ++ga.ga_len; 6006 } 6007 } 6008 } 6009 6010 /* 6011 * Go over all the files and extract the tags. 6012 */ 6013 for (fi = 0; fi < filecount && !got_int; ++fi) 6014 { 6015 fd = mch_fopen((char *)files[fi], "r"); 6016 if (fd == NULL) 6017 { 6018 semsg(_("E153: Unable to open %s for reading"), files[fi]); 6019 continue; 6020 } 6021 fname = files[fi] + dirlen + 1; 6022 6023 firstline = TRUE; 6024 while (!vim_fgets(IObuff, IOSIZE, fd) && !got_int) 6025 { 6026 if (firstline) 6027 { 6028 // Detect utf-8 file by a non-ASCII char in the first line. 6029 this_utf8 = MAYBE; 6030 for (s = IObuff; *s != NUL; ++s) 6031 if (*s >= 0x80) 6032 { 6033 int l; 6034 6035 this_utf8 = TRUE; 6036 l = utf_ptr2len(s); 6037 if (l == 1) 6038 { 6039 // Illegal UTF-8 byte sequence. 6040 this_utf8 = FALSE; 6041 break; 6042 } 6043 s += l - 1; 6044 } 6045 if (this_utf8 == MAYBE) // only ASCII characters found 6046 this_utf8 = FALSE; 6047 if (utf8 == MAYBE) // first file 6048 utf8 = this_utf8; 6049 else if (utf8 != this_utf8) 6050 { 6051 semsg(_("E670: Mix of help file encodings within a language: %s"), files[fi]); 6052 mix = !got_int; 6053 got_int = TRUE; 6054 } 6055 firstline = FALSE; 6056 } 6057 p1 = vim_strchr(IObuff, '*'); // find first '*' 6058 while (p1 != NULL) 6059 { 6060 // Use vim_strbyte() instead of vim_strchr() so that when 6061 // 'encoding' is dbcs it still works, don't find '*' in the 6062 // second byte. 6063 p2 = vim_strbyte(p1 + 1, '*'); // find second '*' 6064 if (p2 != NULL && p2 > p1 + 1) // skip "*" and "**" 6065 { 6066 for (s = p1 + 1; s < p2; ++s) 6067 if (*s == ' ' || *s == '\t' || *s == '|') 6068 break; 6069 6070 /* 6071 * Only accept a *tag* when it consists of valid 6072 * characters, there is white space before it and is 6073 * followed by a white character or end-of-line. 6074 */ 6075 if (s == p2 6076 && (p1 == IObuff || p1[-1] == ' ' || p1[-1] == '\t') 6077 && (vim_strchr((char_u *)" \t\n\r", s[1]) != NULL 6078 || s[1] == '\0')) 6079 { 6080 *p2 = '\0'; 6081 ++p1; 6082 if (ga_grow(&ga, 1) == FAIL) 6083 { 6084 got_int = TRUE; 6085 break; 6086 } 6087 s = alloc(p2 - p1 + STRLEN(fname) + 2); 6088 if (s == NULL) 6089 { 6090 got_int = TRUE; 6091 break; 6092 } 6093 ((char_u **)ga.ga_data)[ga.ga_len] = s; 6094 ++ga.ga_len; 6095 sprintf((char *)s, "%s\t%s", p1, fname); 6096 6097 // find next '*' 6098 p2 = vim_strchr(p2 + 1, '*'); 6099 } 6100 } 6101 p1 = p2; 6102 } 6103 line_breakcheck(); 6104 } 6105 6106 fclose(fd); 6107 } 6108 6109 FreeWild(filecount, files); 6110 6111 if (!got_int) 6112 { 6113 /* 6114 * Sort the tags. 6115 */ 6116 if (ga.ga_data != NULL) 6117 sort_strings((char_u **)ga.ga_data, ga.ga_len); 6118 6119 /* 6120 * Check for duplicates. 6121 */ 6122 for (i = 1; i < ga.ga_len; ++i) 6123 { 6124 p1 = ((char_u **)ga.ga_data)[i - 1]; 6125 p2 = ((char_u **)ga.ga_data)[i]; 6126 while (*p1 == *p2) 6127 { 6128 if (*p2 == '\t') 6129 { 6130 *p2 = NUL; 6131 vim_snprintf((char *)NameBuff, MAXPATHL, 6132 _("E154: Duplicate tag \"%s\" in file %s/%s"), 6133 ((char_u **)ga.ga_data)[i], dir, p2 + 1); 6134 emsg((char *)NameBuff); 6135 *p2 = '\t'; 6136 break; 6137 } 6138 ++p1; 6139 ++p2; 6140 } 6141 } 6142 6143 if (utf8 == TRUE) 6144 fprintf(fd_tags, "!_TAG_FILE_ENCODING\tutf-8\t//\n"); 6145 6146 /* 6147 * Write the tags into the file. 6148 */ 6149 for (i = 0; i < ga.ga_len; ++i) 6150 { 6151 s = ((char_u **)ga.ga_data)[i]; 6152 if (STRNCMP(s, "help-tags\t", 10) == 0) 6153 // help-tags entry was added in formatted form 6154 fputs((char *)s, fd_tags); 6155 else 6156 { 6157 fprintf(fd_tags, "%s\t/*", s); 6158 for (p1 = s; *p1 != '\t'; ++p1) 6159 { 6160 // insert backslash before '\\' and '/' 6161 if (*p1 == '\\' || *p1 == '/') 6162 putc('\\', fd_tags); 6163 putc(*p1, fd_tags); 6164 } 6165 fprintf(fd_tags, "*\n"); 6166 } 6167 } 6168 } 6169 if (mix) 6170 got_int = FALSE; // continue with other languages 6171 6172 for (i = 0; i < ga.ga_len; ++i) 6173 vim_free(((char_u **)ga.ga_data)[i]); 6174 ga_clear(&ga); 6175 fclose(fd_tags); // there is no check for an error... 6176 } 6177 6178 /* 6179 * Generate tags in one help directory, taking care of translations. 6180 */ 6181 static void 6182 do_helptags(char_u *dirname, int add_help_tags) 6183 { 6184 #ifdef FEAT_MULTI_LANG 6185 int len; 6186 int i, j; 6187 garray_T ga; 6188 char_u lang[2]; 6189 char_u ext[5]; 6190 char_u fname[8]; 6191 int filecount; 6192 char_u **files; 6193 6194 // Get a list of all files in the help directory and in subdirectories. 6195 STRCPY(NameBuff, dirname); 6196 add_pathsep(NameBuff); 6197 STRCAT(NameBuff, "**"); 6198 if (gen_expand_wildcards(1, &NameBuff, &filecount, &files, 6199 EW_FILE|EW_SILENT) == FAIL 6200 || filecount == 0) 6201 { 6202 semsg(_("E151: No match: %s"), NameBuff); 6203 return; 6204 } 6205 6206 // Go over all files in the directory to find out what languages are 6207 // present. 6208 ga_init2(&ga, 1, 10); 6209 for (i = 0; i < filecount; ++i) 6210 { 6211 len = (int)STRLEN(files[i]); 6212 if (len > 4) 6213 { 6214 if (STRICMP(files[i] + len - 4, ".txt") == 0) 6215 { 6216 // ".txt" -> language "en" 6217 lang[0] = 'e'; 6218 lang[1] = 'n'; 6219 } 6220 else if (files[i][len - 4] == '.' 6221 && ASCII_ISALPHA(files[i][len - 3]) 6222 && ASCII_ISALPHA(files[i][len - 2]) 6223 && TOLOWER_ASC(files[i][len - 1]) == 'x') 6224 { 6225 // ".abx" -> language "ab" 6226 lang[0] = TOLOWER_ASC(files[i][len - 3]); 6227 lang[1] = TOLOWER_ASC(files[i][len - 2]); 6228 } 6229 else 6230 continue; 6231 6232 // Did we find this language already? 6233 for (j = 0; j < ga.ga_len; j += 2) 6234 if (STRNCMP(lang, ((char_u *)ga.ga_data) + j, 2) == 0) 6235 break; 6236 if (j == ga.ga_len) 6237 { 6238 // New language, add it. 6239 if (ga_grow(&ga, 2) == FAIL) 6240 break; 6241 ((char_u *)ga.ga_data)[ga.ga_len++] = lang[0]; 6242 ((char_u *)ga.ga_data)[ga.ga_len++] = lang[1]; 6243 } 6244 } 6245 } 6246 6247 /* 6248 * Loop over the found languages to generate a tags file for each one. 6249 */ 6250 for (j = 0; j < ga.ga_len; j += 2) 6251 { 6252 STRCPY(fname, "tags-xx"); 6253 fname[5] = ((char_u *)ga.ga_data)[j]; 6254 fname[6] = ((char_u *)ga.ga_data)[j + 1]; 6255 if (fname[5] == 'e' && fname[6] == 'n') 6256 { 6257 // English is an exception: use ".txt" and "tags". 6258 fname[4] = NUL; 6259 STRCPY(ext, ".txt"); 6260 } 6261 else 6262 { 6263 // Language "ab" uses ".abx" and "tags-ab". 6264 STRCPY(ext, ".xxx"); 6265 ext[1] = fname[5]; 6266 ext[2] = fname[6]; 6267 } 6268 helptags_one(dirname, ext, fname, add_help_tags); 6269 } 6270 6271 ga_clear(&ga); 6272 FreeWild(filecount, files); 6273 6274 #else 6275 // No language support, just use "*.txt" and "tags". 6276 helptags_one(dirname, (char_u *)".txt", (char_u *)"tags", add_help_tags); 6277 #endif 6278 } 6279 6280 static void 6281 helptags_cb(char_u *fname, void *cookie) 6282 { 6283 do_helptags(fname, *(int *)cookie); 6284 } 6285 6286 /* 6287 * ":helptags" 6288 */ 6289 void 6290 ex_helptags(exarg_T *eap) 6291 { 6292 expand_T xpc; 6293 char_u *dirname; 6294 int add_help_tags = FALSE; 6295 6296 // Check for ":helptags ++t {dir}". 6297 if (STRNCMP(eap->arg, "++t", 3) == 0 && VIM_ISWHITE(eap->arg[3])) 6298 { 6299 add_help_tags = TRUE; 6300 eap->arg = skipwhite(eap->arg + 3); 6301 } 6302 6303 if (STRCMP(eap->arg, "ALL") == 0) 6304 { 6305 do_in_path(p_rtp, (char_u *)"doc", DIP_ALL + DIP_DIR, 6306 helptags_cb, &add_help_tags); 6307 } 6308 else 6309 { 6310 ExpandInit(&xpc); 6311 xpc.xp_context = EXPAND_DIRECTORIES; 6312 dirname = ExpandOne(&xpc, eap->arg, NULL, 6313 WILD_LIST_NOTFOUND|WILD_SILENT, WILD_EXPAND_FREE); 6314 if (dirname == NULL || !mch_isdir(dirname)) 6315 semsg(_("E150: Not a directory: %s"), eap->arg); 6316 else 6317 do_helptags(dirname, add_help_tags); 6318 vim_free(dirname); 6319 } 6320 } 6321 6322 /* 6323 * Make the user happy. 6324 */ 6325 void 6326 ex_smile(exarg_T *eap UNUSED) 6327 { 6328 static char *code[] = { 6329 "\34 \4o\14$\4ox\30 \2o\30$\1ox\25 \2o\36$\1o\11 \1o\1$\3 \2$\1 \1o\1$x\5 \1o\1 \1$\1 \2o\10 \1o\44$\1o\7 \2$\1 \2$\1 \2$\1o\1$x\2 \2o\1 \1$\1 \1$\1 \1\"\1$\6 \1o\11$\4 \15$\4 \11$\1o\7 \3$\1o\2$\1o\1$x\2 \1\"\6$\1o\1$\5 \1o\11$\6 \13$\6 \12$\1o\4 \10$x\4 \7$\4 \13$\6 \13$\6 \27$x\4 \27$\4 \15$\4 \16$\2 \3\"\3$x\5 \1\"\3$\4\"\61$\5 \1\"\3$x\6 \3$\3 \1o\62$\5 \1\"\3$\1ox\5 \1o\2$\1\"\3 \63$\7 \3$\1ox\5 \3$\4 \55$\1\"\1 \1\"\6$", 6330 "\5o\4$\1ox\4 \1o\3$\4o\5$\2 \45$\3 \1o\21$x\4 \10$\1\"\4$\3 \42$\5 \4$\10\"x\3 \4\"\7 \4$\4 \1\"\34$\1\"\6 \1o\3$x\16 \1\"\3$\1o\5 \3\"\22$\1\"\2$\1\"\11 \3$x\20 \3$\1o\12 \1\"\2$\2\"\6$\4\"\13 \1o\3$x\21 \4$\1o\40 \1o\3$\1\"x\22 \1\"\4$\1o\6 \1o\6$\1o\1\"\4$\1o\10 \1o\4$x\24 \1\"\5$\2o\5 \2\"\4$\1o\5$\1o\3 \1o\4$\2\"x\27 \2\"\5$\4o\2 \1\"\3$\1o\11$\3\"x\32 \2\"\7$\2o\1 \12$x\42 \4\"\13$x\46 \14$x\47 \12$\1\"x\50 \1\"\3$\4\"x" 6331 }; 6332 char *p; 6333 int n; 6334 int i; 6335 6336 msg_start(); 6337 msg_putchar('\n'); 6338 for (i = 0; i < 2; ++i) 6339 for (p = code[i]; *p != NUL; ++p) 6340 if (*p == 'x') 6341 msg_putchar('\n'); 6342 else 6343 for (n = *p++; n > 0; --n) 6344 if (*p == 'o' || *p == '$') 6345 msg_putchar_attr(*p, HL_ATTR(HLF_L)); 6346 else 6347 msg_putchar(*p); 6348 msg_clr_eos(); 6349 } 6350 6351 /* 6352 * ":drop" 6353 * Opens the first argument in a window. When there are two or more arguments 6354 * the argument list is redefined. 6355 */ 6356 void 6357 ex_drop(exarg_T *eap) 6358 { 6359 int split = FALSE; 6360 win_T *wp; 6361 buf_T *buf; 6362 tabpage_T *tp; 6363 6364 /* 6365 * Check if the first argument is already being edited in a window. If 6366 * so, jump to that window. 6367 * We would actually need to check all arguments, but that's complicated 6368 * and mostly only one file is dropped. 6369 * This also ignores wildcards, since it is very unlikely the user is 6370 * editing a file name with a wildcard character. 6371 */ 6372 set_arglist(eap->arg); 6373 6374 /* 6375 * Expanding wildcards may result in an empty argument list. E.g. when 6376 * editing "foo.pyc" and ".pyc" is in 'wildignore'. Assume that we 6377 * already did an error message for this. 6378 */ 6379 if (ARGCOUNT == 0) 6380 return; 6381 6382 if (cmdmod.tab) 6383 { 6384 // ":tab drop file ...": open a tab for each argument that isn't 6385 // edited in a window yet. It's like ":tab all" but without closing 6386 // windows or tabs. 6387 ex_all(eap); 6388 } 6389 else 6390 { 6391 // ":drop file ...": Edit the first argument. Jump to an existing 6392 // window if possible, edit in current window if the current buffer 6393 // can be abandoned, otherwise open a new window. 6394 buf = buflist_findnr(ARGLIST[0].ae_fnum); 6395 6396 FOR_ALL_TAB_WINDOWS(tp, wp) 6397 { 6398 if (wp->w_buffer == buf) 6399 { 6400 goto_tabpage_win(tp, wp); 6401 curwin->w_arg_idx = 0; 6402 return; 6403 } 6404 } 6405 6406 /* 6407 * Check whether the current buffer is changed. If so, we will need 6408 * to split the current window or data could be lost. 6409 * Skip the check if the 'hidden' option is set, as in this case the 6410 * buffer won't be lost. 6411 */ 6412 if (!buf_hide(curbuf)) 6413 { 6414 ++emsg_off; 6415 split = check_changed(curbuf, CCGD_AW | CCGD_EXCMD); 6416 --emsg_off; 6417 } 6418 6419 // Fake a ":sfirst" or ":first" command edit the first argument. 6420 if (split) 6421 { 6422 eap->cmdidx = CMD_sfirst; 6423 eap->cmd[0] = 's'; 6424 } 6425 else 6426 eap->cmdidx = CMD_first; 6427 ex_rewind(eap); 6428 } 6429 } 6430 6431 /* 6432 * Skip over the pattern argument of ":vimgrep /pat/[g][j]". 6433 * Put the start of the pattern in "*s", unless "s" is NULL. 6434 * If "flags" is not NULL put the flags in it: VGR_GLOBAL, VGR_NOJUMP. 6435 * If "s" is not NULL terminate the pattern with a NUL. 6436 * Return a pointer to the char just past the pattern plus flags. 6437 */ 6438 char_u * 6439 skip_vimgrep_pat(char_u *p, char_u **s, int *flags) 6440 { 6441 int c; 6442 6443 if (vim_isIDc(*p)) 6444 { 6445 // ":vimgrep pattern fname" 6446 if (s != NULL) 6447 *s = p; 6448 p = skiptowhite(p); 6449 if (s != NULL && *p != NUL) 6450 *p++ = NUL; 6451 } 6452 else 6453 { 6454 // ":vimgrep /pattern/[g][j] fname" 6455 if (s != NULL) 6456 *s = p + 1; 6457 c = *p; 6458 p = skip_regexp(p + 1, c, TRUE, NULL); 6459 if (*p != c) 6460 return NULL; 6461 6462 // Truncate the pattern. 6463 if (s != NULL) 6464 *p = NUL; 6465 ++p; 6466 6467 // Find the flags 6468 while (*p == 'g' || *p == 'j') 6469 { 6470 if (flags != NULL) 6471 { 6472 if (*p == 'g') 6473 *flags |= VGR_GLOBAL; 6474 else 6475 *flags |= VGR_NOJUMP; 6476 } 6477 ++p; 6478 } 6479 } 6480 return p; 6481 } 6482 6483 #if defined(FEAT_EVAL) || defined(PROTO) 6484 /* 6485 * List v:oldfiles in a nice way. 6486 */ 6487 void 6488 ex_oldfiles(exarg_T *eap UNUSED) 6489 { 6490 list_T *l = get_vim_var_list(VV_OLDFILES); 6491 listitem_T *li; 6492 int nr = 0; 6493 char_u *fname; 6494 6495 if (l == NULL) 6496 msg(_("No old files")); 6497 else 6498 { 6499 msg_start(); 6500 msg_scroll = TRUE; 6501 for (li = l->lv_first; li != NULL && !got_int; li = li->li_next) 6502 { 6503 ++nr; 6504 fname = tv_get_string(&li->li_tv); 6505 if (!message_filtered(fname)) 6506 { 6507 msg_outnum((long)nr); 6508 msg_puts(": "); 6509 msg_outtrans(fname); 6510 msg_clr_eos(); 6511 msg_putchar('\n'); 6512 out_flush(); // output one line at a time 6513 ui_breakcheck(); 6514 } 6515 } 6516 6517 // Assume "got_int" was set to truncate the listing. 6518 got_int = FALSE; 6519 6520 # ifdef FEAT_BROWSE_CMD 6521 if (cmdmod.browse) 6522 { 6523 quit_more = FALSE; 6524 nr = prompt_for_number(FALSE); 6525 msg_starthere(); 6526 if (nr > 0) 6527 { 6528 char_u *p = list_find_str(get_vim_var_list(VV_OLDFILES), 6529 (long)nr); 6530 6531 if (p != NULL) 6532 { 6533 p = expand_env_save(p); 6534 eap->arg = p; 6535 eap->cmdidx = CMD_edit; 6536 cmdmod.browse = FALSE; 6537 do_exedit(eap, NULL); 6538 vim_free(p); 6539 } 6540 } 6541 } 6542 # endif 6543 } 6544 } 6545 #endif 6546