1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * buffer.c: functions for dealing with the buffer structure 12 */ 13 14 /* 15 * The buffer list is a double linked list of all buffers. 16 * Each buffer can be in one of these states: 17 * never loaded: BF_NEVERLOADED is set, only the file name is valid 18 * not loaded: b_ml.ml_mfp == NULL, no memfile allocated 19 * hidden: b_nwindows == 0, loaded but not displayed in a window 20 * normal: loaded and displayed in a window 21 * 22 * Instead of storing file names all over the place, each file name is 23 * stored in the buffer list. It can be referenced by a number. 24 * 25 * The current implementation remembers all file names ever used. 26 */ 27 28 #include "vim.h" 29 30 #if defined(FEAT_CMDL_COMPL) || defined(FEAT_LISTCMDS) || defined(FEAT_EVAL) || defined(FEAT_PERL) 31 static char_u *buflist_match __ARGS((regprog_T *prog, buf_T *buf)); 32 # define HAVE_BUFLIST_MATCH 33 static char_u *fname_match __ARGS((regprog_T *prog, char_u *name)); 34 #endif 35 static void buflist_setfpos __ARGS((buf_T *buf, win_T *win, linenr_T lnum, colnr_T col, int copy_options)); 36 static wininfo_T *find_wininfo __ARGS((buf_T *buf, int skip_diff_buffer)); 37 #ifdef UNIX 38 static buf_T *buflist_findname_stat __ARGS((char_u *ffname, struct stat *st)); 39 static int otherfile_buf __ARGS((buf_T *buf, char_u *ffname, struct stat *stp)); 40 static int buf_same_ino __ARGS((buf_T *buf, struct stat *stp)); 41 #else 42 static int otherfile_buf __ARGS((buf_T *buf, char_u *ffname)); 43 #endif 44 #ifdef FEAT_TITLE 45 static int ti_change __ARGS((char_u *str, char_u **last)); 46 #endif 47 static int append_arg_number __ARGS((win_T *wp, char_u *buf, int buflen, int add_file)); 48 static void free_buffer __ARGS((buf_T *)); 49 static void free_buffer_stuff __ARGS((buf_T *buf, int free_options)); 50 static void clear_wininfo __ARGS((buf_T *buf)); 51 52 #ifdef UNIX 53 # define dev_T dev_t 54 #else 55 # define dev_T unsigned 56 #endif 57 58 #if defined(FEAT_SIGNS) 59 static void insert_sign __ARGS((buf_T *buf, signlist_T *prev, signlist_T *next, int id, linenr_T lnum, int typenr)); 60 #endif 61 62 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) 63 static char *msg_loclist = N_("[Location List]"); 64 static char *msg_qflist = N_("[Quickfix List]"); 65 #endif 66 #ifdef FEAT_AUTOCMD 67 static char *e_auabort = N_("E855: Autocommands caused command to abort"); 68 #endif 69 70 /* 71 * Open current buffer, that is: open the memfile and read the file into 72 * memory. 73 * Return FAIL for failure, OK otherwise. 74 */ 75 int 76 open_buffer(read_stdin, eap, flags) 77 int read_stdin; /* read file from stdin */ 78 exarg_T *eap; /* for forced 'ff' and 'fenc' or NULL */ 79 int flags; /* extra flags for readfile() */ 80 { 81 int retval = OK; 82 #ifdef FEAT_AUTOCMD 83 buf_T *old_curbuf; 84 #endif 85 #ifdef FEAT_SYN_HL 86 long old_tw = curbuf->b_p_tw; 87 #endif 88 89 /* 90 * The 'readonly' flag is only set when BF_NEVERLOADED is being reset. 91 * When re-entering the same buffer, it should not change, because the 92 * user may have reset the flag by hand. 93 */ 94 if (readonlymode && curbuf->b_ffname != NULL 95 && (curbuf->b_flags & BF_NEVERLOADED)) 96 curbuf->b_p_ro = TRUE; 97 98 if (ml_open(curbuf) == FAIL) 99 { 100 /* 101 * There MUST be a memfile, otherwise we can't do anything 102 * If we can't create one for the current buffer, take another buffer 103 */ 104 close_buffer(NULL, curbuf, 0, FALSE); 105 for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next) 106 if (curbuf->b_ml.ml_mfp != NULL) 107 break; 108 /* 109 * if there is no memfile at all, exit 110 * This is OK, since there are no changes to lose. 111 */ 112 if (curbuf == NULL) 113 { 114 EMSG(_("E82: Cannot allocate any buffer, exiting...")); 115 getout(2); 116 } 117 EMSG(_("E83: Cannot allocate buffer, using other one...")); 118 enter_buffer(curbuf); 119 #ifdef FEAT_SYN_HL 120 if (old_tw != curbuf->b_p_tw) 121 check_colorcolumn(curwin); 122 #endif 123 return FAIL; 124 } 125 126 #ifdef FEAT_AUTOCMD 127 /* The autocommands in readfile() may change the buffer, but only AFTER 128 * reading the file. */ 129 old_curbuf = curbuf; 130 modified_was_set = FALSE; 131 #endif 132 133 /* mark cursor position as being invalid */ 134 curwin->w_valid = 0; 135 136 if (curbuf->b_ffname != NULL 137 #ifdef FEAT_NETBEANS_INTG 138 && netbeansReadFile 139 #endif 140 ) 141 { 142 #ifdef FEAT_NETBEANS_INTG 143 int oldFire = netbeansFireChanges; 144 145 netbeansFireChanges = 0; 146 #endif 147 retval = readfile(curbuf->b_ffname, curbuf->b_fname, 148 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap, 149 flags | READ_NEW); 150 #ifdef FEAT_NETBEANS_INTG 151 netbeansFireChanges = oldFire; 152 #endif 153 /* Help buffer is filtered. */ 154 if (curbuf->b_help) 155 fix_help_buffer(); 156 } 157 else if (read_stdin) 158 { 159 int save_bin = curbuf->b_p_bin; 160 linenr_T line_count; 161 162 /* 163 * First read the text in binary mode into the buffer. 164 * Then read from that same buffer and append at the end. This makes 165 * it possible to retry when 'fileformat' or 'fileencoding' was 166 * guessed wrong. 167 */ 168 curbuf->b_p_bin = TRUE; 169 retval = readfile(NULL, NULL, (linenr_T)0, 170 (linenr_T)0, (linenr_T)MAXLNUM, NULL, 171 flags | (READ_NEW + READ_STDIN)); 172 curbuf->b_p_bin = save_bin; 173 if (retval == OK) 174 { 175 line_count = curbuf->b_ml.ml_line_count; 176 retval = readfile(NULL, NULL, (linenr_T)line_count, 177 (linenr_T)0, (linenr_T)MAXLNUM, eap, 178 flags | READ_BUFFER); 179 if (retval == OK) 180 { 181 /* Delete the binary lines. */ 182 while (--line_count >= 0) 183 ml_delete((linenr_T)1, FALSE); 184 } 185 else 186 { 187 /* Delete the converted lines. */ 188 while (curbuf->b_ml.ml_line_count > line_count) 189 ml_delete(line_count, FALSE); 190 } 191 /* Put the cursor on the first line. */ 192 curwin->w_cursor.lnum = 1; 193 curwin->w_cursor.col = 0; 194 195 /* Set or reset 'modified' before executing autocommands, so that 196 * it can be changed there. */ 197 if (!readonlymode && !bufempty()) 198 changed(); 199 else if (retval != FAIL) 200 unchanged(curbuf, FALSE); 201 #ifdef FEAT_AUTOCMD 202 # ifdef FEAT_EVAL 203 apply_autocmds_retval(EVENT_STDINREADPOST, NULL, NULL, FALSE, 204 curbuf, &retval); 205 # else 206 apply_autocmds(EVENT_STDINREADPOST, NULL, NULL, FALSE, curbuf); 207 # endif 208 #endif 209 } 210 } 211 212 /* if first time loading this buffer, init b_chartab[] */ 213 if (curbuf->b_flags & BF_NEVERLOADED) 214 (void)buf_init_chartab(curbuf, FALSE); 215 216 /* 217 * Set/reset the Changed flag first, autocmds may change the buffer. 218 * Apply the automatic commands, before processing the modelines. 219 * So the modelines have priority over auto commands. 220 */ 221 /* When reading stdin, the buffer contents always needs writing, so set 222 * the changed flag. Unless in readonly mode: "ls | gview -". 223 * When interrupted and 'cpoptions' contains 'i' set changed flag. */ 224 if ((got_int && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 225 #ifdef FEAT_AUTOCMD 226 || modified_was_set /* ":set modified" used in autocmd */ 227 # ifdef FEAT_EVAL 228 || (aborting() && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 229 # endif 230 #endif 231 ) 232 changed(); 233 else if (retval != FAIL && !read_stdin) 234 unchanged(curbuf, FALSE); 235 save_file_ff(curbuf); /* keep this fileformat */ 236 237 /* require "!" to overwrite the file, because it wasn't read completely */ 238 #ifdef FEAT_EVAL 239 if (aborting()) 240 #else 241 if (got_int) 242 #endif 243 curbuf->b_flags |= BF_READERR; 244 245 #ifdef FEAT_FOLDING 246 /* Need to update automatic folding. Do this before the autocommands, 247 * they may use the fold info. */ 248 foldUpdateAll(curwin); 249 #endif 250 251 #ifdef FEAT_AUTOCMD 252 /* need to set w_topline, unless some autocommand already did that. */ 253 if (!(curwin->w_valid & VALID_TOPLINE)) 254 { 255 curwin->w_topline = 1; 256 # ifdef FEAT_DIFF 257 curwin->w_topfill = 0; 258 # endif 259 } 260 # ifdef FEAT_EVAL 261 apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, &retval); 262 # else 263 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 264 # endif 265 #endif 266 267 if (retval != FAIL) 268 { 269 #ifdef FEAT_AUTOCMD 270 /* 271 * The autocommands may have changed the current buffer. Apply the 272 * modelines to the correct buffer, if it still exists and is loaded. 273 */ 274 if (buf_valid(old_curbuf) && old_curbuf->b_ml.ml_mfp != NULL) 275 { 276 aco_save_T aco; 277 278 /* Go to the buffer that was opened. */ 279 aucmd_prepbuf(&aco, old_curbuf); 280 #endif 281 do_modelines(0); 282 curbuf->b_flags &= ~(BF_CHECK_RO | BF_NEVERLOADED); 283 284 #ifdef FEAT_AUTOCMD 285 # ifdef FEAT_EVAL 286 apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf, 287 &retval); 288 # else 289 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 290 # endif 291 292 /* restore curwin/curbuf and a few other things */ 293 aucmd_restbuf(&aco); 294 } 295 #endif 296 } 297 298 return retval; 299 } 300 301 /* 302 * Return TRUE if "buf" points to a valid buffer (in the buffer list). 303 */ 304 int 305 buf_valid(buf) 306 buf_T *buf; 307 { 308 buf_T *bp; 309 310 for (bp = firstbuf; bp != NULL; bp = bp->b_next) 311 if (bp == buf) 312 return TRUE; 313 return FALSE; 314 } 315 316 /* 317 * Close the link to a buffer. 318 * "action" is used when there is no longer a window for the buffer. 319 * It can be: 320 * 0 buffer becomes hidden 321 * DOBUF_UNLOAD buffer is unloaded 322 * DOBUF_DELETE buffer is unloaded and removed from buffer list 323 * DOBUF_WIPE buffer is unloaded and really deleted 324 * When doing all but the first one on the current buffer, the caller should 325 * get a new buffer very soon! 326 * 327 * The 'bufhidden' option can force freeing and deleting. 328 * 329 * When "abort_if_last" is TRUE then do not close the buffer if autocommands 330 * cause there to be only one window with this buffer. e.g. when ":quit" is 331 * supposed to close the window but autocommands close all other windows. 332 */ 333 void 334 close_buffer(win, buf, action, abort_if_last) 335 win_T *win; /* if not NULL, set b_last_cursor */ 336 buf_T *buf; 337 int action; 338 int abort_if_last UNUSED; 339 { 340 #ifdef FEAT_AUTOCMD 341 int is_curbuf; 342 int nwindows; 343 #endif 344 int unload_buf = (action != 0); 345 int del_buf = (action == DOBUF_DEL || action == DOBUF_WIPE); 346 int wipe_buf = (action == DOBUF_WIPE); 347 348 #ifdef FEAT_QUICKFIX 349 /* 350 * Force unloading or deleting when 'bufhidden' says so. 351 * The caller must take care of NOT deleting/freeing when 'bufhidden' is 352 * "hide" (otherwise we could never free or delete a buffer). 353 */ 354 if (buf->b_p_bh[0] == 'd') /* 'bufhidden' == "delete" */ 355 { 356 del_buf = TRUE; 357 unload_buf = TRUE; 358 } 359 else if (buf->b_p_bh[0] == 'w') /* 'bufhidden' == "wipe" */ 360 { 361 del_buf = TRUE; 362 unload_buf = TRUE; 363 wipe_buf = TRUE; 364 } 365 else if (buf->b_p_bh[0] == 'u') /* 'bufhidden' == "unload" */ 366 unload_buf = TRUE; 367 #endif 368 369 if (win != NULL) 370 { 371 /* Set b_last_cursor when closing the last window for the buffer. 372 * Remember the last cursor position and window options of the buffer. 373 * This used to be only for the current window, but then options like 374 * 'foldmethod' may be lost with a ":only" command. */ 375 if (buf->b_nwindows == 1) 376 set_last_cursor(win); 377 buflist_setfpos(buf, win, 378 win->w_cursor.lnum == 1 ? 0 : win->w_cursor.lnum, 379 win->w_cursor.col, TRUE); 380 } 381 382 #ifdef FEAT_AUTOCMD 383 /* When the buffer is no longer in a window, trigger BufWinLeave */ 384 if (buf->b_nwindows == 1) 385 { 386 buf->b_closing = TRUE; 387 apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname, 388 FALSE, buf); 389 if (!buf_valid(buf)) 390 { 391 /* Autocommands deleted the buffer. */ 392 aucmd_abort: 393 EMSG(_(e_auabort)); 394 return; 395 } 396 buf->b_closing = FALSE; 397 if (abort_if_last && one_window()) 398 /* Autocommands made this the only window. */ 399 goto aucmd_abort; 400 401 /* When the buffer becomes hidden, but is not unloaded, trigger 402 * BufHidden */ 403 if (!unload_buf) 404 { 405 buf->b_closing = TRUE; 406 apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname, 407 FALSE, buf); 408 if (!buf_valid(buf)) 409 /* Autocommands deleted the buffer. */ 410 goto aucmd_abort; 411 buf->b_closing = FALSE; 412 if (abort_if_last && one_window()) 413 /* Autocommands made this the only window. */ 414 goto aucmd_abort; 415 } 416 # ifdef FEAT_EVAL 417 if (aborting()) /* autocmds may abort script processing */ 418 return; 419 # endif 420 } 421 nwindows = buf->b_nwindows; 422 #endif 423 424 /* decrease the link count from windows (unless not in any window) */ 425 if (buf->b_nwindows > 0) 426 --buf->b_nwindows; 427 428 /* Return when a window is displaying the buffer or when it's not 429 * unloaded. */ 430 if (buf->b_nwindows > 0 || !unload_buf) 431 return; 432 433 /* Always remove the buffer when there is no file name. */ 434 if (buf->b_ffname == NULL) 435 del_buf = TRUE; 436 437 /* 438 * Free all things allocated for this buffer. 439 * Also calls the "BufDelete" autocommands when del_buf is TRUE. 440 */ 441 #ifdef FEAT_AUTOCMD 442 /* Remember if we are closing the current buffer. Restore the number of 443 * windows, so that autocommands in buf_freeall() don't get confused. */ 444 is_curbuf = (buf == curbuf); 445 buf->b_nwindows = nwindows; 446 #endif 447 448 buf_freeall(buf, (del_buf ? BFA_DEL : 0) + (wipe_buf ? BFA_WIPE : 0)); 449 if ( 450 #ifdef FEAT_WINDOWS 451 win_valid(win) && 452 #else 453 win != NULL && 454 #endif 455 win->w_buffer == buf) 456 win->w_buffer = NULL; /* make sure we don't use the buffer now */ 457 458 #ifdef FEAT_AUTOCMD 459 /* Autocommands may have deleted the buffer. */ 460 if (!buf_valid(buf)) 461 return; 462 # ifdef FEAT_EVAL 463 if (aborting()) /* autocmds may abort script processing */ 464 return; 465 # endif 466 467 /* Autocommands may have opened or closed windows for this buffer. 468 * Decrement the count for the close we do here. */ 469 if (buf->b_nwindows > 0) 470 --buf->b_nwindows; 471 472 /* 473 * It's possible that autocommands change curbuf to the one being deleted. 474 * This might cause the previous curbuf to be deleted unexpectedly. But 475 * in some cases it's OK to delete the curbuf, because a new one is 476 * obtained anyway. Therefore only return if curbuf changed to the 477 * deleted buffer. 478 */ 479 if (buf == curbuf && !is_curbuf) 480 return; 481 #endif 482 483 /* Change directories when the 'acd' option is set. */ 484 DO_AUTOCHDIR 485 486 /* 487 * Remove the buffer from the list. 488 */ 489 if (wipe_buf) 490 { 491 #ifdef FEAT_SUN_WORKSHOP 492 if (usingSunWorkShop) 493 workshop_file_closed_lineno((char *)buf->b_ffname, 494 (int)buf->b_last_cursor.lnum); 495 #endif 496 vim_free(buf->b_ffname); 497 vim_free(buf->b_sfname); 498 if (buf->b_prev == NULL) 499 firstbuf = buf->b_next; 500 else 501 buf->b_prev->b_next = buf->b_next; 502 if (buf->b_next == NULL) 503 lastbuf = buf->b_prev; 504 else 505 buf->b_next->b_prev = buf->b_prev; 506 free_buffer(buf); 507 } 508 else 509 { 510 if (del_buf) 511 { 512 /* Free all internal variables and reset option values, to make 513 * ":bdel" compatible with Vim 5.7. */ 514 free_buffer_stuff(buf, TRUE); 515 516 /* Make it look like a new buffer. */ 517 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 518 519 /* Init the options when loaded again. */ 520 buf->b_p_initialized = FALSE; 521 } 522 buf_clear_file(buf); 523 if (del_buf) 524 buf->b_p_bl = FALSE; 525 } 526 } 527 528 /* 529 * Make buffer not contain a file. 530 */ 531 void 532 buf_clear_file(buf) 533 buf_T *buf; 534 { 535 buf->b_ml.ml_line_count = 1; 536 unchanged(buf, TRUE); 537 #ifndef SHORT_FNAME 538 buf->b_shortname = FALSE; 539 #endif 540 buf->b_p_eol = TRUE; 541 buf->b_start_eol = TRUE; 542 #ifdef FEAT_MBYTE 543 buf->b_p_bomb = FALSE; 544 buf->b_start_bomb = FALSE; 545 #endif 546 buf->b_ml.ml_mfp = NULL; 547 buf->b_ml.ml_flags = ML_EMPTY; /* empty buffer */ 548 #ifdef FEAT_NETBEANS_INTG 549 netbeans_deleted_all_lines(buf); 550 #endif 551 } 552 553 /* 554 * buf_freeall() - free all things allocated for a buffer that are related to 555 * the file. flags: 556 * BFA_DEL buffer is going to be deleted 557 * BFA_WIPE buffer is going to be wiped out 558 * BFA_KEEP_UNDO do not free undo information 559 */ 560 void 561 buf_freeall(buf, flags) 562 buf_T *buf; 563 int flags; 564 { 565 #ifdef FEAT_AUTOCMD 566 int is_curbuf = (buf == curbuf); 567 568 buf->b_closing = TRUE; 569 apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, FALSE, buf); 570 if (!buf_valid(buf)) /* autocommands may delete the buffer */ 571 return; 572 if ((flags & BFA_DEL) && buf->b_p_bl) 573 { 574 apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname, FALSE, buf); 575 if (!buf_valid(buf)) /* autocommands may delete the buffer */ 576 return; 577 } 578 if (flags & BFA_WIPE) 579 { 580 apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname, 581 FALSE, buf); 582 if (!buf_valid(buf)) /* autocommands may delete the buffer */ 583 return; 584 } 585 buf->b_closing = FALSE; 586 # ifdef FEAT_EVAL 587 if (aborting()) /* autocmds may abort script processing */ 588 return; 589 # endif 590 591 /* 592 * It's possible that autocommands change curbuf to the one being deleted. 593 * This might cause curbuf to be deleted unexpectedly. But in some cases 594 * it's OK to delete the curbuf, because a new one is obtained anyway. 595 * Therefore only return if curbuf changed to the deleted buffer. 596 */ 597 if (buf == curbuf && !is_curbuf) 598 return; 599 #endif 600 #ifdef FEAT_DIFF 601 diff_buf_delete(buf); /* Can't use 'diff' for unloaded buffer. */ 602 #endif 603 #ifdef FEAT_SYN_HL 604 /* Remove any ownsyntax, unless exiting. */ 605 if (firstwin != NULL && curwin->w_buffer == buf) 606 reset_synblock(curwin); 607 #endif 608 609 #ifdef FEAT_FOLDING 610 /* No folds in an empty buffer. */ 611 # ifdef FEAT_WINDOWS 612 { 613 win_T *win; 614 tabpage_T *tp; 615 616 FOR_ALL_TAB_WINDOWS(tp, win) 617 if (win->w_buffer == buf) 618 clearFolding(win); 619 } 620 # else 621 if (curwin->w_buffer == buf) 622 clearFolding(curwin); 623 # endif 624 #endif 625 626 #ifdef FEAT_TCL 627 tcl_buffer_free(buf); 628 #endif 629 ml_close(buf, TRUE); /* close and delete the memline/memfile */ 630 buf->b_ml.ml_line_count = 0; /* no lines in buffer */ 631 if ((flags & BFA_KEEP_UNDO) == 0) 632 { 633 u_blockfree(buf); /* free the memory allocated for undo */ 634 u_clearall(buf); /* reset all undo information */ 635 } 636 #ifdef FEAT_SYN_HL 637 syntax_clear(&buf->b_s); /* reset syntax info */ 638 #endif 639 buf->b_flags &= ~BF_READERR; /* a read error is no longer relevant */ 640 } 641 642 /* 643 * Free a buffer structure and the things it contains related to the buffer 644 * itself (not the file, that must have been done already). 645 */ 646 static void 647 free_buffer(buf) 648 buf_T *buf; 649 { 650 free_buffer_stuff(buf, TRUE); 651 #ifdef FEAT_LUA 652 lua_buffer_free(buf); 653 #endif 654 #ifdef FEAT_MZSCHEME 655 mzscheme_buffer_free(buf); 656 #endif 657 #ifdef FEAT_PERL 658 perl_buf_free(buf); 659 #endif 660 #ifdef FEAT_PYTHON 661 python_buffer_free(buf); 662 #endif 663 #ifdef FEAT_PYTHON3 664 python3_buffer_free(buf); 665 #endif 666 #ifdef FEAT_RUBY 667 ruby_buffer_free(buf); 668 #endif 669 #ifdef FEAT_AUTOCMD 670 aubuflocal_remove(buf); 671 #endif 672 vim_free(buf); 673 } 674 675 /* 676 * Free stuff in the buffer for ":bdel" and when wiping out the buffer. 677 */ 678 static void 679 free_buffer_stuff(buf, free_options) 680 buf_T *buf; 681 int free_options; /* free options as well */ 682 { 683 if (free_options) 684 { 685 clear_wininfo(buf); /* including window-local options */ 686 free_buf_options(buf, TRUE); 687 #ifdef FEAT_SPELL 688 ga_clear(&buf->b_s.b_langp); 689 #endif 690 } 691 #ifdef FEAT_EVAL 692 vars_clear(&buf->b_vars.dv_hashtab); /* free all internal variables */ 693 hash_init(&buf->b_vars.dv_hashtab); 694 #endif 695 #ifdef FEAT_USR_CMDS 696 uc_clear(&buf->b_ucmds); /* clear local user commands */ 697 #endif 698 #ifdef FEAT_SIGNS 699 buf_delete_signs(buf); /* delete any signs */ 700 #endif 701 #ifdef FEAT_NETBEANS_INTG 702 netbeans_file_killed(buf); 703 #endif 704 #ifdef FEAT_LOCALMAP 705 map_clear_int(buf, MAP_ALL_MODES, TRUE, FALSE); /* clear local mappings */ 706 map_clear_int(buf, MAP_ALL_MODES, TRUE, TRUE); /* clear local abbrevs */ 707 #endif 708 #ifdef FEAT_MBYTE 709 vim_free(buf->b_start_fenc); 710 buf->b_start_fenc = NULL; 711 #endif 712 } 713 714 /* 715 * Free the b_wininfo list for buffer "buf". 716 */ 717 static void 718 clear_wininfo(buf) 719 buf_T *buf; 720 { 721 wininfo_T *wip; 722 723 while (buf->b_wininfo != NULL) 724 { 725 wip = buf->b_wininfo; 726 buf->b_wininfo = wip->wi_next; 727 if (wip->wi_optset) 728 { 729 clear_winopt(&wip->wi_opt); 730 #ifdef FEAT_FOLDING 731 deleteFoldRecurse(&wip->wi_folds); 732 #endif 733 } 734 vim_free(wip); 735 } 736 } 737 738 #if defined(FEAT_LISTCMDS) || defined(PROTO) 739 /* 740 * Go to another buffer. Handles the result of the ATTENTION dialog. 741 */ 742 void 743 goto_buffer(eap, start, dir, count) 744 exarg_T *eap; 745 int start; 746 int dir; 747 int count; 748 { 749 # if defined(FEAT_WINDOWS) && defined(HAS_SWAP_EXISTS_ACTION) 750 buf_T *old_curbuf = curbuf; 751 752 swap_exists_action = SEA_DIALOG; 753 # endif 754 (void)do_buffer(*eap->cmd == 's' ? DOBUF_SPLIT : DOBUF_GOTO, 755 start, dir, count, eap->forceit); 756 # if defined(FEAT_WINDOWS) && defined(HAS_SWAP_EXISTS_ACTION) 757 if (swap_exists_action == SEA_QUIT && *eap->cmd == 's') 758 { 759 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 760 cleanup_T cs; 761 762 /* Reset the error/interrupt/exception state here so that 763 * aborting() returns FALSE when closing a window. */ 764 enter_cleanup(&cs); 765 # endif 766 767 /* Quitting means closing the split window, nothing else. */ 768 win_close(curwin, TRUE); 769 swap_exists_action = SEA_NONE; 770 swap_exists_did_quit = TRUE; 771 772 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 773 /* Restore the error/interrupt/exception state if not discarded by a 774 * new aborting error, interrupt, or uncaught exception. */ 775 leave_cleanup(&cs); 776 # endif 777 } 778 else 779 handle_swap_exists(old_curbuf); 780 # endif 781 } 782 #endif 783 784 #if defined(HAS_SWAP_EXISTS_ACTION) || defined(PROTO) 785 /* 786 * Handle the situation of swap_exists_action being set. 787 * It is allowed for "old_curbuf" to be NULL or invalid. 788 */ 789 void 790 handle_swap_exists(old_curbuf) 791 buf_T *old_curbuf; 792 { 793 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 794 cleanup_T cs; 795 # endif 796 #ifdef FEAT_SYN_HL 797 long old_tw = curbuf->b_p_tw; 798 #endif 799 800 if (swap_exists_action == SEA_QUIT) 801 { 802 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 803 /* Reset the error/interrupt/exception state here so that 804 * aborting() returns FALSE when closing a buffer. */ 805 enter_cleanup(&cs); 806 # endif 807 808 /* User selected Quit at ATTENTION prompt. Go back to previous 809 * buffer. If that buffer is gone or the same as the current one, 810 * open a new, empty buffer. */ 811 swap_exists_action = SEA_NONE; /* don't want it again */ 812 swap_exists_did_quit = TRUE; 813 close_buffer(curwin, curbuf, DOBUF_UNLOAD, FALSE); 814 if (!buf_valid(old_curbuf) || old_curbuf == curbuf) 815 old_curbuf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED); 816 if (old_curbuf != NULL) 817 { 818 enter_buffer(old_curbuf); 819 #ifdef FEAT_SYN_HL 820 if (old_tw != curbuf->b_p_tw) 821 check_colorcolumn(curwin); 822 #endif 823 } 824 /* If "old_curbuf" is NULL we are in big trouble here... */ 825 826 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 827 /* Restore the error/interrupt/exception state if not discarded by a 828 * new aborting error, interrupt, or uncaught exception. */ 829 leave_cleanup(&cs); 830 # endif 831 } 832 else if (swap_exists_action == SEA_RECOVER) 833 { 834 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 835 /* Reset the error/interrupt/exception state here so that 836 * aborting() returns FALSE when closing a buffer. */ 837 enter_cleanup(&cs); 838 # endif 839 840 /* User selected Recover at ATTENTION prompt. */ 841 msg_scroll = TRUE; 842 ml_recover(); 843 MSG_PUTS("\n"); /* don't overwrite the last message */ 844 cmdline_row = msg_row; 845 do_modelines(0); 846 847 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 848 /* Restore the error/interrupt/exception state if not discarded by a 849 * new aborting error, interrupt, or uncaught exception. */ 850 leave_cleanup(&cs); 851 # endif 852 } 853 swap_exists_action = SEA_NONE; 854 } 855 #endif 856 857 #if defined(FEAT_LISTCMDS) || defined(PROTO) 858 /* 859 * do_bufdel() - delete or unload buffer(s) 860 * 861 * addr_count == 0: ":bdel" - delete current buffer 862 * addr_count == 1: ":N bdel" or ":bdel N [N ..]" - first delete 863 * buffer "end_bnr", then any other arguments. 864 * addr_count == 2: ":N,N bdel" - delete buffers in range 865 * 866 * command can be DOBUF_UNLOAD (":bunload"), DOBUF_WIPE (":bwipeout") or 867 * DOBUF_DEL (":bdel") 868 * 869 * Returns error message or NULL 870 */ 871 char_u * 872 do_bufdel(command, arg, addr_count, start_bnr, end_bnr, forceit) 873 int command; 874 char_u *arg; /* pointer to extra arguments */ 875 int addr_count; 876 int start_bnr; /* first buffer number in a range */ 877 int end_bnr; /* buffer nr or last buffer nr in a range */ 878 int forceit; 879 { 880 int do_current = 0; /* delete current buffer? */ 881 int deleted = 0; /* number of buffers deleted */ 882 char_u *errormsg = NULL; /* return value */ 883 int bnr; /* buffer number */ 884 char_u *p; 885 886 if (addr_count == 0) 887 { 888 (void)do_buffer(command, DOBUF_CURRENT, FORWARD, 0, forceit); 889 } 890 else 891 { 892 if (addr_count == 2) 893 { 894 if (*arg) /* both range and argument is not allowed */ 895 return (char_u *)_(e_trailing); 896 bnr = start_bnr; 897 } 898 else /* addr_count == 1 */ 899 bnr = end_bnr; 900 901 for ( ;!got_int; ui_breakcheck()) 902 { 903 /* 904 * delete the current buffer last, otherwise when the 905 * current buffer is deleted, the next buffer becomes 906 * the current one and will be loaded, which may then 907 * also be deleted, etc. 908 */ 909 if (bnr == curbuf->b_fnum) 910 do_current = bnr; 911 else if (do_buffer(command, DOBUF_FIRST, FORWARD, (int)bnr, 912 forceit) == OK) 913 ++deleted; 914 915 /* 916 * find next buffer number to delete/unload 917 */ 918 if (addr_count == 2) 919 { 920 if (++bnr > end_bnr) 921 break; 922 } 923 else /* addr_count == 1 */ 924 { 925 arg = skipwhite(arg); 926 if (*arg == NUL) 927 break; 928 if (!VIM_ISDIGIT(*arg)) 929 { 930 p = skiptowhite_esc(arg); 931 bnr = buflist_findpat(arg, p, command == DOBUF_WIPE, FALSE); 932 if (bnr < 0) /* failed */ 933 break; 934 arg = p; 935 } 936 else 937 bnr = getdigits(&arg); 938 } 939 } 940 if (!got_int && do_current && do_buffer(command, DOBUF_FIRST, 941 FORWARD, do_current, forceit) == OK) 942 ++deleted; 943 944 if (deleted == 0) 945 { 946 if (command == DOBUF_UNLOAD) 947 STRCPY(IObuff, _("E515: No buffers were unloaded")); 948 else if (command == DOBUF_DEL) 949 STRCPY(IObuff, _("E516: No buffers were deleted")); 950 else 951 STRCPY(IObuff, _("E517: No buffers were wiped out")); 952 errormsg = IObuff; 953 } 954 else if (deleted >= p_report) 955 { 956 if (command == DOBUF_UNLOAD) 957 { 958 if (deleted == 1) 959 MSG(_("1 buffer unloaded")); 960 else 961 smsg((char_u *)_("%d buffers unloaded"), deleted); 962 } 963 else if (command == DOBUF_DEL) 964 { 965 if (deleted == 1) 966 MSG(_("1 buffer deleted")); 967 else 968 smsg((char_u *)_("%d buffers deleted"), deleted); 969 } 970 else 971 { 972 if (deleted == 1) 973 MSG(_("1 buffer wiped out")); 974 else 975 smsg((char_u *)_("%d buffers wiped out"), deleted); 976 } 977 } 978 } 979 980 981 return errormsg; 982 } 983 984 /* 985 * Implementation of the commands for the buffer list. 986 * 987 * action == DOBUF_GOTO go to specified buffer 988 * action == DOBUF_SPLIT split window and go to specified buffer 989 * action == DOBUF_UNLOAD unload specified buffer(s) 990 * action == DOBUF_DEL delete specified buffer(s) from buffer list 991 * action == DOBUF_WIPE delete specified buffer(s) really 992 * 993 * start == DOBUF_CURRENT go to "count" buffer from current buffer 994 * start == DOBUF_FIRST go to "count" buffer from first buffer 995 * start == DOBUF_LAST go to "count" buffer from last buffer 996 * start == DOBUF_MOD go to "count" modified buffer from current buffer 997 * 998 * Return FAIL or OK. 999 */ 1000 int 1001 do_buffer(action, start, dir, count, forceit) 1002 int action; 1003 int start; 1004 int dir; /* FORWARD or BACKWARD */ 1005 int count; /* buffer number or number of buffers */ 1006 int forceit; /* TRUE for :...! */ 1007 { 1008 buf_T *buf; 1009 buf_T *bp; 1010 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1011 || action == DOBUF_WIPE); 1012 1013 switch (start) 1014 { 1015 case DOBUF_FIRST: buf = firstbuf; break; 1016 case DOBUF_LAST: buf = lastbuf; break; 1017 default: buf = curbuf; break; 1018 } 1019 if (start == DOBUF_MOD) /* find next modified buffer */ 1020 { 1021 while (count-- > 0) 1022 { 1023 do 1024 { 1025 buf = buf->b_next; 1026 if (buf == NULL) 1027 buf = firstbuf; 1028 } 1029 while (buf != curbuf && !bufIsChanged(buf)); 1030 } 1031 if (!bufIsChanged(buf)) 1032 { 1033 EMSG(_("E84: No modified buffer found")); 1034 return FAIL; 1035 } 1036 } 1037 else if (start == DOBUF_FIRST && count) /* find specified buffer number */ 1038 { 1039 while (buf != NULL && buf->b_fnum != count) 1040 buf = buf->b_next; 1041 } 1042 else 1043 { 1044 bp = NULL; 1045 while (count > 0 || (!unload && !buf->b_p_bl && bp != buf)) 1046 { 1047 /* remember the buffer where we start, we come back there when all 1048 * buffers are unlisted. */ 1049 if (bp == NULL) 1050 bp = buf; 1051 if (dir == FORWARD) 1052 { 1053 buf = buf->b_next; 1054 if (buf == NULL) 1055 buf = firstbuf; 1056 } 1057 else 1058 { 1059 buf = buf->b_prev; 1060 if (buf == NULL) 1061 buf = lastbuf; 1062 } 1063 /* don't count unlisted buffers */ 1064 if (unload || buf->b_p_bl) 1065 { 1066 --count; 1067 bp = NULL; /* use this buffer as new starting point */ 1068 } 1069 if (bp == buf) 1070 { 1071 /* back where we started, didn't find anything. */ 1072 EMSG(_("E85: There is no listed buffer")); 1073 return FAIL; 1074 } 1075 } 1076 } 1077 1078 if (buf == NULL) /* could not find it */ 1079 { 1080 if (start == DOBUF_FIRST) 1081 { 1082 /* don't warn when deleting */ 1083 if (!unload) 1084 EMSGN(_("E86: Buffer %ld does not exist"), count); 1085 } 1086 else if (dir == FORWARD) 1087 EMSG(_("E87: Cannot go beyond last buffer")); 1088 else 1089 EMSG(_("E88: Cannot go before first buffer")); 1090 return FAIL; 1091 } 1092 1093 #ifdef FEAT_GUI 1094 need_mouse_correct = TRUE; 1095 #endif 1096 1097 #ifdef FEAT_LISTCMDS 1098 /* 1099 * delete buffer buf from memory and/or the list 1100 */ 1101 if (unload) 1102 { 1103 int forward; 1104 int retval; 1105 1106 /* When unloading or deleting a buffer that's already unloaded and 1107 * unlisted: fail silently. */ 1108 if (action != DOBUF_WIPE && buf->b_ml.ml_mfp == NULL && !buf->b_p_bl) 1109 return FAIL; 1110 1111 if (!forceit && bufIsChanged(buf)) 1112 { 1113 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1114 if ((p_confirm || cmdmod.confirm) && p_write) 1115 { 1116 dialog_changed(buf, FALSE); 1117 # ifdef FEAT_AUTOCMD 1118 if (!buf_valid(buf)) 1119 /* Autocommand deleted buffer, oops! It's not changed 1120 * now. */ 1121 return FAIL; 1122 # endif 1123 /* If it's still changed fail silently, the dialog already 1124 * mentioned why it fails. */ 1125 if (bufIsChanged(buf)) 1126 return FAIL; 1127 } 1128 else 1129 #endif 1130 { 1131 EMSGN(_("E89: No write since last change for buffer %ld (add ! to override)"), 1132 buf->b_fnum); 1133 return FAIL; 1134 } 1135 } 1136 1137 /* 1138 * If deleting the last (listed) buffer, make it empty. 1139 * The last (listed) buffer cannot be unloaded. 1140 */ 1141 for (bp = firstbuf; bp != NULL; bp = bp->b_next) 1142 if (bp->b_p_bl && bp != buf) 1143 break; 1144 if (bp == NULL && buf == curbuf) 1145 { 1146 if (action == DOBUF_UNLOAD) 1147 { 1148 EMSG(_("E90: Cannot unload last buffer")); 1149 return FAIL; 1150 } 1151 1152 /* Close any other windows on this buffer, then make it empty. */ 1153 #ifdef FEAT_WINDOWS 1154 close_windows(buf, TRUE); 1155 #endif 1156 setpcmark(); 1157 retval = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 1158 forceit ? ECMD_FORCEIT : 0, curwin); 1159 1160 /* 1161 * do_ecmd() may create a new buffer, then we have to delete 1162 * the old one. But do_ecmd() may have done that already, check 1163 * if the buffer still exists. 1164 */ 1165 if (buf != curbuf && buf_valid(buf) && buf->b_nwindows == 0) 1166 close_buffer(NULL, buf, action, FALSE); 1167 return retval; 1168 } 1169 1170 #ifdef FEAT_WINDOWS 1171 /* 1172 * If the deleted buffer is the current one, close the current window 1173 * (unless it's the only window). Repeat this so long as we end up in 1174 * a window with this buffer. 1175 */ 1176 while (buf == curbuf 1177 # ifdef FEAT_AUTOCMD 1178 && !(curwin->w_closing || curwin->w_buffer->b_closing) 1179 # endif 1180 && (firstwin != lastwin || first_tabpage->tp_next != NULL)) 1181 win_close(curwin, FALSE); 1182 #endif 1183 1184 /* 1185 * If the buffer to be deleted is not the current one, delete it here. 1186 */ 1187 if (buf != curbuf) 1188 { 1189 #ifdef FEAT_WINDOWS 1190 close_windows(buf, FALSE); 1191 #endif 1192 if (buf != curbuf && buf_valid(buf) && buf->b_nwindows <= 0) 1193 close_buffer(NULL, buf, action, FALSE); 1194 return OK; 1195 } 1196 1197 /* 1198 * Deleting the current buffer: Need to find another buffer to go to. 1199 * There must be another, otherwise it would have been handled above. 1200 * First use au_new_curbuf, if it is valid. 1201 * Then prefer the buffer we most recently visited. 1202 * Else try to find one that is loaded, after the current buffer, 1203 * then before the current buffer. 1204 * Finally use any buffer. 1205 */ 1206 buf = NULL; /* selected buffer */ 1207 bp = NULL; /* used when no loaded buffer found */ 1208 #ifdef FEAT_AUTOCMD 1209 if (au_new_curbuf != NULL && buf_valid(au_new_curbuf)) 1210 buf = au_new_curbuf; 1211 # ifdef FEAT_JUMPLIST 1212 else 1213 # endif 1214 #endif 1215 #ifdef FEAT_JUMPLIST 1216 if (curwin->w_jumplistlen > 0) 1217 { 1218 int jumpidx; 1219 1220 jumpidx = curwin->w_jumplistidx - 1; 1221 if (jumpidx < 0) 1222 jumpidx = curwin->w_jumplistlen - 1; 1223 1224 forward = jumpidx; 1225 while (jumpidx != curwin->w_jumplistidx) 1226 { 1227 buf = buflist_findnr(curwin->w_jumplist[jumpidx].fmark.fnum); 1228 if (buf != NULL) 1229 { 1230 if (buf == curbuf || !buf->b_p_bl) 1231 buf = NULL; /* skip current and unlisted bufs */ 1232 else if (buf->b_ml.ml_mfp == NULL) 1233 { 1234 /* skip unloaded buf, but may keep it for later */ 1235 if (bp == NULL) 1236 bp = buf; 1237 buf = NULL; 1238 } 1239 } 1240 if (buf != NULL) /* found a valid buffer: stop searching */ 1241 break; 1242 /* advance to older entry in jump list */ 1243 if (!jumpidx && curwin->w_jumplistidx == curwin->w_jumplistlen) 1244 break; 1245 if (--jumpidx < 0) 1246 jumpidx = curwin->w_jumplistlen - 1; 1247 if (jumpidx == forward) /* List exhausted for sure */ 1248 break; 1249 } 1250 } 1251 #endif 1252 1253 if (buf == NULL) /* No previous buffer, Try 2'nd approach */ 1254 { 1255 forward = TRUE; 1256 buf = curbuf->b_next; 1257 for (;;) 1258 { 1259 if (buf == NULL) 1260 { 1261 if (!forward) /* tried both directions */ 1262 break; 1263 buf = curbuf->b_prev; 1264 forward = FALSE; 1265 continue; 1266 } 1267 /* in non-help buffer, try to skip help buffers, and vv */ 1268 if (buf->b_help == curbuf->b_help && buf->b_p_bl) 1269 { 1270 if (buf->b_ml.ml_mfp != NULL) /* found loaded buffer */ 1271 break; 1272 if (bp == NULL) /* remember unloaded buf for later */ 1273 bp = buf; 1274 } 1275 if (forward) 1276 buf = buf->b_next; 1277 else 1278 buf = buf->b_prev; 1279 } 1280 } 1281 if (buf == NULL) /* No loaded buffer, use unloaded one */ 1282 buf = bp; 1283 if (buf == NULL) /* No loaded buffer, find listed one */ 1284 { 1285 for (buf = firstbuf; buf != NULL; buf = buf->b_next) 1286 if (buf->b_p_bl && buf != curbuf) 1287 break; 1288 } 1289 if (buf == NULL) /* Still no buffer, just take one */ 1290 { 1291 if (curbuf->b_next != NULL) 1292 buf = curbuf->b_next; 1293 else 1294 buf = curbuf->b_prev; 1295 } 1296 } 1297 1298 /* 1299 * make buf current buffer 1300 */ 1301 if (action == DOBUF_SPLIT) /* split window first */ 1302 { 1303 # ifdef FEAT_WINDOWS 1304 /* If 'switchbuf' contains "useopen": jump to first window containing 1305 * "buf" if one exists */ 1306 if ((swb_flags & SWB_USEOPEN) && buf_jump_open_win(buf)) 1307 return OK; 1308 /* If 'switchbuf' contains "usetab": jump to first window in any tab 1309 * page containing "buf" if one exists */ 1310 if ((swb_flags & SWB_USETAB) && buf_jump_open_tab(buf)) 1311 return OK; 1312 if (win_split(0, 0) == FAIL) 1313 # endif 1314 return FAIL; 1315 } 1316 #endif 1317 1318 /* go to current buffer - nothing to do */ 1319 if (buf == curbuf) 1320 return OK; 1321 1322 /* 1323 * Check if the current buffer may be abandoned. 1324 */ 1325 if (action == DOBUF_GOTO && !can_abandon(curbuf, forceit)) 1326 { 1327 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1328 if ((p_confirm || cmdmod.confirm) && p_write) 1329 { 1330 dialog_changed(curbuf, FALSE); 1331 # ifdef FEAT_AUTOCMD 1332 if (!buf_valid(buf)) 1333 /* Autocommand deleted buffer, oops! */ 1334 return FAIL; 1335 # endif 1336 } 1337 if (bufIsChanged(curbuf)) 1338 #endif 1339 { 1340 EMSG(_(e_nowrtmsg)); 1341 return FAIL; 1342 } 1343 } 1344 1345 /* Go to the other buffer. */ 1346 set_curbuf(buf, action); 1347 1348 #if defined(FEAT_LISTCMDS) \ 1349 && (defined(FEAT_SCROLLBIND) || defined(FEAT_CURSORBIND)) 1350 if (action == DOBUF_SPLIT) 1351 { 1352 RESET_BINDING(curwin); /* reset 'scrollbind' and 'cursorbind' */ 1353 } 1354 #endif 1355 1356 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 1357 if (aborting()) /* autocmds may abort script processing */ 1358 return FAIL; 1359 #endif 1360 1361 return OK; 1362 } 1363 1364 #endif /* FEAT_LISTCMDS */ 1365 1366 /* 1367 * Set current buffer to "buf". Executes autocommands and closes current 1368 * buffer. "action" tells how to close the current buffer: 1369 * DOBUF_GOTO free or hide it 1370 * DOBUF_SPLIT nothing 1371 * DOBUF_UNLOAD unload it 1372 * DOBUF_DEL delete it 1373 * DOBUF_WIPE wipe it out 1374 */ 1375 void 1376 set_curbuf(buf, action) 1377 buf_T *buf; 1378 int action; 1379 { 1380 buf_T *prevbuf; 1381 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1382 || action == DOBUF_WIPE); 1383 #ifdef FEAT_SYN_HL 1384 long old_tw = curbuf->b_p_tw; 1385 #endif 1386 1387 setpcmark(); 1388 if (!cmdmod.keepalt) 1389 curwin->w_alt_fnum = curbuf->b_fnum; /* remember alternate file */ 1390 buflist_altfpos(curwin); /* remember curpos */ 1391 1392 #ifdef FEAT_VISUAL 1393 /* Don't restart Select mode after switching to another buffer. */ 1394 VIsual_reselect = FALSE; 1395 #endif 1396 1397 /* close_windows() or apply_autocmds() may change curbuf */ 1398 prevbuf = curbuf; 1399 1400 #ifdef FEAT_AUTOCMD 1401 apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); 1402 # ifdef FEAT_EVAL 1403 if (buf_valid(prevbuf) && !aborting()) 1404 # else 1405 if (buf_valid(prevbuf)) 1406 # endif 1407 #endif 1408 { 1409 #ifdef FEAT_SYN_HL 1410 if (prevbuf == curwin->w_buffer) 1411 reset_synblock(curwin); 1412 #endif 1413 #ifdef FEAT_WINDOWS 1414 if (unload) 1415 close_windows(prevbuf, FALSE); 1416 #endif 1417 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 1418 if (buf_valid(prevbuf) && !aborting()) 1419 #else 1420 if (buf_valid(prevbuf)) 1421 #endif 1422 { 1423 #ifdef FEAT_WINDOWS 1424 win_T *previouswin = curwin; 1425 #endif 1426 if (prevbuf == curbuf) 1427 u_sync(FALSE); 1428 close_buffer(prevbuf == curwin->w_buffer ? curwin : NULL, prevbuf, 1429 unload ? action : (action == DOBUF_GOTO 1430 && !P_HID(prevbuf) 1431 && !bufIsChanged(prevbuf)) ? DOBUF_UNLOAD : 0, FALSE); 1432 #ifdef FEAT_WINDOWS 1433 if (curwin != previouswin && win_valid(previouswin)) 1434 /* autocommands changed curwin, Grr! */ 1435 curwin = previouswin; 1436 #endif 1437 } 1438 } 1439 #ifdef FEAT_AUTOCMD 1440 /* An autocommand may have deleted "buf", already entered it (e.g., when 1441 * it did ":bunload") or aborted the script processing! 1442 * If curwin->w_buffer is null, enter_buffer() will make it valid again */ 1443 if ((buf_valid(buf) && buf != curbuf 1444 # ifdef FEAT_EVAL 1445 && !aborting() 1446 # endif 1447 # ifdef FEAT_WINDOWS 1448 ) || curwin->w_buffer == NULL 1449 # endif 1450 ) 1451 #endif 1452 { 1453 enter_buffer(buf); 1454 #ifdef FEAT_SYN_HL 1455 if (old_tw != curbuf->b_p_tw) 1456 check_colorcolumn(curwin); 1457 #endif 1458 } 1459 } 1460 1461 /* 1462 * Enter a new current buffer. 1463 * Old curbuf must have been abandoned already! This also means "curbuf" may 1464 * be pointing to freed memory. 1465 */ 1466 void 1467 enter_buffer(buf) 1468 buf_T *buf; 1469 { 1470 /* Copy buffer and window local option values. Not for a help buffer. */ 1471 buf_copy_options(buf, BCO_ENTER | BCO_NOHELP); 1472 if (!buf->b_help) 1473 get_winopts(buf); 1474 #ifdef FEAT_FOLDING 1475 else 1476 /* Remove all folds in the window. */ 1477 clearFolding(curwin); 1478 foldUpdateAll(curwin); /* update folds (later). */ 1479 #endif 1480 1481 /* Get the buffer in the current window. */ 1482 curwin->w_buffer = buf; 1483 curbuf = buf; 1484 ++curbuf->b_nwindows; 1485 1486 #ifdef FEAT_DIFF 1487 if (curwin->w_p_diff) 1488 diff_buf_add(curbuf); 1489 #endif 1490 1491 #ifdef FEAT_SYN_HL 1492 curwin->w_s = &(buf->b_s); 1493 #endif 1494 1495 /* Cursor on first line by default. */ 1496 curwin->w_cursor.lnum = 1; 1497 curwin->w_cursor.col = 0; 1498 #ifdef FEAT_VIRTUALEDIT 1499 curwin->w_cursor.coladd = 0; 1500 #endif 1501 curwin->w_set_curswant = TRUE; 1502 #ifdef FEAT_AUTOCMD 1503 curwin->w_topline_was_set = FALSE; 1504 #endif 1505 1506 /* mark cursor position as being invalid */ 1507 curwin->w_valid = 0; 1508 1509 /* Make sure the buffer is loaded. */ 1510 if (curbuf->b_ml.ml_mfp == NULL) /* need to load the file */ 1511 { 1512 #ifdef FEAT_AUTOCMD 1513 /* If there is no filetype, allow for detecting one. Esp. useful for 1514 * ":ball" used in a autocommand. If there already is a filetype we 1515 * might prefer to keep it. */ 1516 if (*curbuf->b_p_ft == NUL) 1517 did_filetype = FALSE; 1518 #endif 1519 1520 open_buffer(FALSE, NULL, 0); 1521 } 1522 else 1523 { 1524 if (!msg_silent) 1525 need_fileinfo = TRUE; /* display file info after redraw */ 1526 (void)buf_check_timestamp(curbuf, FALSE); /* check if file changed */ 1527 #ifdef FEAT_AUTOCMD 1528 curwin->w_topline = 1; 1529 # ifdef FEAT_DIFF 1530 curwin->w_topfill = 0; 1531 # endif 1532 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 1533 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 1534 #endif 1535 } 1536 1537 /* If autocommands did not change the cursor position, restore cursor lnum 1538 * and possibly cursor col. */ 1539 if (curwin->w_cursor.lnum == 1 && inindent(0)) 1540 buflist_getfpos(); 1541 1542 check_arg_idx(curwin); /* check for valid arg_idx */ 1543 #ifdef FEAT_TITLE 1544 maketitle(); 1545 #endif 1546 #ifdef FEAT_AUTOCMD 1547 /* when autocmds didn't change it */ 1548 if (curwin->w_topline == 1 && !curwin->w_topline_was_set) 1549 #endif 1550 scroll_cursor_halfway(FALSE); /* redisplay at correct position */ 1551 1552 #ifdef FEAT_NETBEANS_INTG 1553 /* Send fileOpened event because we've changed buffers. */ 1554 netbeans_file_activated(curbuf); 1555 #endif 1556 1557 /* Change directories when the 'acd' option is set. */ 1558 DO_AUTOCHDIR 1559 1560 #ifdef FEAT_KEYMAP 1561 if (curbuf->b_kmap_state & KEYMAP_INIT) 1562 (void)keymap_init(); 1563 #endif 1564 #ifdef FEAT_SPELL 1565 /* May need to set the spell language. Can only do this after the buffer 1566 * has been properly setup. */ 1567 if (!curbuf->b_help && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) 1568 (void)did_set_spelllang(curwin); 1569 #endif 1570 1571 redraw_later(NOT_VALID); 1572 } 1573 1574 #if defined(FEAT_AUTOCHDIR) || defined(PROTO) 1575 /* 1576 * Change to the directory of the current buffer. 1577 */ 1578 void 1579 do_autochdir() 1580 { 1581 if (curbuf->b_ffname != NULL && vim_chdirfile(curbuf->b_ffname) == OK) 1582 shorten_fnames(TRUE); 1583 } 1584 #endif 1585 1586 /* 1587 * functions for dealing with the buffer list 1588 */ 1589 1590 /* 1591 * Add a file name to the buffer list. Return a pointer to the buffer. 1592 * If the same file name already exists return a pointer to that buffer. 1593 * If it does not exist, or if fname == NULL, a new entry is created. 1594 * If (flags & BLN_CURBUF) is TRUE, may use current buffer. 1595 * If (flags & BLN_LISTED) is TRUE, add new buffer to buffer list. 1596 * If (flags & BLN_DUMMY) is TRUE, don't count it as a real buffer. 1597 * This is the ONLY way to create a new buffer. 1598 */ 1599 static int top_file_num = 1; /* highest file number */ 1600 1601 buf_T * 1602 buflist_new(ffname, sfname, lnum, flags) 1603 char_u *ffname; /* full path of fname or relative */ 1604 char_u *sfname; /* short fname or NULL */ 1605 linenr_T lnum; /* preferred cursor line */ 1606 int flags; /* BLN_ defines */ 1607 { 1608 buf_T *buf; 1609 #ifdef UNIX 1610 struct stat st; 1611 #endif 1612 1613 fname_expand(curbuf, &ffname, &sfname); /* will allocate ffname */ 1614 1615 /* 1616 * If file name already exists in the list, update the entry. 1617 */ 1618 #ifdef UNIX 1619 /* On Unix we can use inode numbers when the file exists. Works better 1620 * for hard links. */ 1621 if (sfname == NULL || mch_stat((char *)sfname, &st) < 0) 1622 st.st_dev = (dev_T)-1; 1623 #endif 1624 if (ffname != NULL && !(flags & BLN_DUMMY) && (buf = 1625 #ifdef UNIX 1626 buflist_findname_stat(ffname, &st) 1627 #else 1628 buflist_findname(ffname) 1629 #endif 1630 ) != NULL) 1631 { 1632 vim_free(ffname); 1633 if (lnum != 0) 1634 buflist_setfpos(buf, curwin, lnum, (colnr_T)0, FALSE); 1635 /* copy the options now, if 'cpo' doesn't have 's' and not done 1636 * already */ 1637 buf_copy_options(buf, 0); 1638 if ((flags & BLN_LISTED) && !buf->b_p_bl) 1639 { 1640 buf->b_p_bl = TRUE; 1641 #ifdef FEAT_AUTOCMD 1642 if (!(flags & BLN_DUMMY)) 1643 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf); 1644 #endif 1645 } 1646 return buf; 1647 } 1648 1649 /* 1650 * If the current buffer has no name and no contents, use the current 1651 * buffer. Otherwise: Need to allocate a new buffer structure. 1652 * 1653 * This is the ONLY place where a new buffer structure is allocated! 1654 * (A spell file buffer is allocated in spell.c, but that's not a normal 1655 * buffer.) 1656 */ 1657 buf = NULL; 1658 if ((flags & BLN_CURBUF) 1659 && curbuf != NULL 1660 && curbuf->b_ffname == NULL 1661 && curbuf->b_nwindows <= 1 1662 && (curbuf->b_ml.ml_mfp == NULL || bufempty())) 1663 { 1664 buf = curbuf; 1665 #ifdef FEAT_AUTOCMD 1666 /* It's like this buffer is deleted. Watch out for autocommands that 1667 * change curbuf! If that happens, allocate a new buffer anyway. */ 1668 if (curbuf->b_p_bl) 1669 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 1670 if (buf == curbuf) 1671 apply_autocmds(EVENT_BUFWIPEOUT, NULL, NULL, FALSE, curbuf); 1672 # ifdef FEAT_EVAL 1673 if (aborting()) /* autocmds may abort script processing */ 1674 return NULL; 1675 # endif 1676 #endif 1677 #ifdef FEAT_QUICKFIX 1678 # ifdef FEAT_AUTOCMD 1679 if (buf == curbuf) 1680 # endif 1681 { 1682 /* Make sure 'bufhidden' and 'buftype' are empty */ 1683 clear_string_option(&buf->b_p_bh); 1684 clear_string_option(&buf->b_p_bt); 1685 } 1686 #endif 1687 } 1688 if (buf != curbuf || curbuf == NULL) 1689 { 1690 buf = (buf_T *)alloc_clear((unsigned)sizeof(buf_T)); 1691 if (buf == NULL) 1692 { 1693 vim_free(ffname); 1694 return NULL; 1695 } 1696 } 1697 1698 if (ffname != NULL) 1699 { 1700 buf->b_ffname = ffname; 1701 buf->b_sfname = vim_strsave(sfname); 1702 } 1703 1704 clear_wininfo(buf); 1705 buf->b_wininfo = (wininfo_T *)alloc_clear((unsigned)sizeof(wininfo_T)); 1706 1707 if ((ffname != NULL && (buf->b_ffname == NULL || buf->b_sfname == NULL)) 1708 || buf->b_wininfo == NULL) 1709 { 1710 vim_free(buf->b_ffname); 1711 buf->b_ffname = NULL; 1712 vim_free(buf->b_sfname); 1713 buf->b_sfname = NULL; 1714 if (buf != curbuf) 1715 free_buffer(buf); 1716 return NULL; 1717 } 1718 1719 if (buf == curbuf) 1720 { 1721 /* free all things allocated for this buffer */ 1722 buf_freeall(buf, 0); 1723 if (buf != curbuf) /* autocommands deleted the buffer! */ 1724 return NULL; 1725 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 1726 if (aborting()) /* autocmds may abort script processing */ 1727 return NULL; 1728 #endif 1729 /* buf->b_nwindows = 0; why was this here? */ 1730 free_buffer_stuff(buf, FALSE); /* delete local variables et al. */ 1731 1732 /* Init the options. */ 1733 buf->b_p_initialized = FALSE; 1734 buf_copy_options(buf, BCO_ENTER); 1735 1736 #ifdef FEAT_KEYMAP 1737 /* need to reload lmaps and set b:keymap_name */ 1738 curbuf->b_kmap_state |= KEYMAP_INIT; 1739 #endif 1740 } 1741 else 1742 { 1743 /* 1744 * put new buffer at the end of the buffer list 1745 */ 1746 buf->b_next = NULL; 1747 if (firstbuf == NULL) /* buffer list is empty */ 1748 { 1749 buf->b_prev = NULL; 1750 firstbuf = buf; 1751 } 1752 else /* append new buffer at end of list */ 1753 { 1754 lastbuf->b_next = buf; 1755 buf->b_prev = lastbuf; 1756 } 1757 lastbuf = buf; 1758 1759 buf->b_fnum = top_file_num++; 1760 if (top_file_num < 0) /* wrap around (may cause duplicates) */ 1761 { 1762 EMSG(_("W14: Warning: List of file names overflow")); 1763 if (emsg_silent == 0) 1764 { 1765 out_flush(); 1766 ui_delay(3000L, TRUE); /* make sure it is noticed */ 1767 } 1768 top_file_num = 1; 1769 } 1770 1771 /* 1772 * Always copy the options from the current buffer. 1773 */ 1774 buf_copy_options(buf, BCO_ALWAYS); 1775 } 1776 1777 buf->b_wininfo->wi_fpos.lnum = lnum; 1778 buf->b_wininfo->wi_win = curwin; 1779 1780 #ifdef FEAT_EVAL 1781 /* init b: variables */ 1782 init_var_dict(&buf->b_vars, &buf->b_bufvar, VAR_SCOPE); 1783 #endif 1784 #ifdef FEAT_SYN_HL 1785 hash_init(&buf->b_s.b_keywtab); 1786 hash_init(&buf->b_s.b_keywtab_ic); 1787 #endif 1788 1789 buf->b_fname = buf->b_sfname; 1790 #ifdef UNIX 1791 if (st.st_dev == (dev_T)-1) 1792 buf->b_dev_valid = FALSE; 1793 else 1794 { 1795 buf->b_dev_valid = TRUE; 1796 buf->b_dev = st.st_dev; 1797 buf->b_ino = st.st_ino; 1798 } 1799 #endif 1800 buf->b_u_synced = TRUE; 1801 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 1802 if (flags & BLN_DUMMY) 1803 buf->b_flags |= BF_DUMMY; 1804 buf_clear_file(buf); 1805 clrallmarks(buf); /* clear marks */ 1806 fmarks_check_names(buf); /* check file marks for this file */ 1807 buf->b_p_bl = (flags & BLN_LISTED) ? TRUE : FALSE; /* init 'buflisted' */ 1808 #ifdef FEAT_AUTOCMD 1809 if (!(flags & BLN_DUMMY)) 1810 { 1811 apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf); 1812 if (flags & BLN_LISTED) 1813 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf); 1814 # ifdef FEAT_EVAL 1815 if (aborting()) /* autocmds may abort script processing */ 1816 return NULL; 1817 # endif 1818 } 1819 #endif 1820 1821 return buf; 1822 } 1823 1824 /* 1825 * Free the memory for the options of a buffer. 1826 * If "free_p_ff" is TRUE also free 'fileformat', 'buftype' and 1827 * 'fileencoding'. 1828 */ 1829 void 1830 free_buf_options(buf, free_p_ff) 1831 buf_T *buf; 1832 int free_p_ff; 1833 { 1834 if (free_p_ff) 1835 { 1836 #ifdef FEAT_MBYTE 1837 clear_string_option(&buf->b_p_fenc); 1838 #endif 1839 clear_string_option(&buf->b_p_ff); 1840 #ifdef FEAT_QUICKFIX 1841 clear_string_option(&buf->b_p_bh); 1842 clear_string_option(&buf->b_p_bt); 1843 #endif 1844 } 1845 #ifdef FEAT_FIND_ID 1846 clear_string_option(&buf->b_p_def); 1847 clear_string_option(&buf->b_p_inc); 1848 # ifdef FEAT_EVAL 1849 clear_string_option(&buf->b_p_inex); 1850 # endif 1851 #endif 1852 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL) 1853 clear_string_option(&buf->b_p_inde); 1854 clear_string_option(&buf->b_p_indk); 1855 #endif 1856 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL) 1857 clear_string_option(&buf->b_p_bexpr); 1858 #endif 1859 #if defined(FEAT_CRYPT) 1860 clear_string_option(&buf->b_p_cm); 1861 #endif 1862 #if defined(FEAT_EVAL) 1863 clear_string_option(&buf->b_p_fex); 1864 #endif 1865 #ifdef FEAT_CRYPT 1866 clear_string_option(&buf->b_p_key); 1867 #endif 1868 clear_string_option(&buf->b_p_kp); 1869 clear_string_option(&buf->b_p_mps); 1870 clear_string_option(&buf->b_p_fo); 1871 clear_string_option(&buf->b_p_flp); 1872 clear_string_option(&buf->b_p_isk); 1873 #ifdef FEAT_KEYMAP 1874 clear_string_option(&buf->b_p_keymap); 1875 ga_clear(&buf->b_kmap_ga); 1876 #endif 1877 #ifdef FEAT_COMMENTS 1878 clear_string_option(&buf->b_p_com); 1879 #endif 1880 #ifdef FEAT_FOLDING 1881 clear_string_option(&buf->b_p_cms); 1882 #endif 1883 clear_string_option(&buf->b_p_nf); 1884 #ifdef FEAT_SYN_HL 1885 clear_string_option(&buf->b_p_syn); 1886 #endif 1887 #ifdef FEAT_SPELL 1888 clear_string_option(&buf->b_s.b_p_spc); 1889 clear_string_option(&buf->b_s.b_p_spf); 1890 vim_free(buf->b_s.b_cap_prog); 1891 buf->b_s.b_cap_prog = NULL; 1892 clear_string_option(&buf->b_s.b_p_spl); 1893 #endif 1894 #ifdef FEAT_SEARCHPATH 1895 clear_string_option(&buf->b_p_sua); 1896 #endif 1897 #ifdef FEAT_AUTOCMD 1898 clear_string_option(&buf->b_p_ft); 1899 #endif 1900 #ifdef FEAT_CINDENT 1901 clear_string_option(&buf->b_p_cink); 1902 clear_string_option(&buf->b_p_cino); 1903 #endif 1904 #if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) 1905 clear_string_option(&buf->b_p_cinw); 1906 #endif 1907 #ifdef FEAT_INS_EXPAND 1908 clear_string_option(&buf->b_p_cpt); 1909 #endif 1910 #ifdef FEAT_COMPL_FUNC 1911 clear_string_option(&buf->b_p_cfu); 1912 clear_string_option(&buf->b_p_ofu); 1913 #endif 1914 #ifdef FEAT_QUICKFIX 1915 clear_string_option(&buf->b_p_gp); 1916 clear_string_option(&buf->b_p_mp); 1917 clear_string_option(&buf->b_p_efm); 1918 #endif 1919 clear_string_option(&buf->b_p_ep); 1920 clear_string_option(&buf->b_p_path); 1921 clear_string_option(&buf->b_p_tags); 1922 #ifdef FEAT_INS_EXPAND 1923 clear_string_option(&buf->b_p_dict); 1924 clear_string_option(&buf->b_p_tsr); 1925 #endif 1926 #ifdef FEAT_TEXTOBJ 1927 clear_string_option(&buf->b_p_qe); 1928 #endif 1929 buf->b_p_ar = -1; 1930 } 1931 1932 /* 1933 * get alternate file n 1934 * set linenr to lnum or altfpos.lnum if lnum == 0 1935 * also set cursor column to altfpos.col if 'startofline' is not set. 1936 * if (options & GETF_SETMARK) call setpcmark() 1937 * if (options & GETF_ALT) we are jumping to an alternate file. 1938 * if (options & GETF_SWITCH) respect 'switchbuf' settings when jumping 1939 * 1940 * return FAIL for failure, OK for success 1941 */ 1942 int 1943 buflist_getfile(n, lnum, options, forceit) 1944 int n; 1945 linenr_T lnum; 1946 int options; 1947 int forceit; 1948 { 1949 buf_T *buf; 1950 #ifdef FEAT_WINDOWS 1951 win_T *wp = NULL; 1952 #endif 1953 pos_T *fpos; 1954 colnr_T col; 1955 1956 buf = buflist_findnr(n); 1957 if (buf == NULL) 1958 { 1959 if ((options & GETF_ALT) && n == 0) 1960 EMSG(_(e_noalt)); 1961 else 1962 EMSGN(_("E92: Buffer %ld not found"), n); 1963 return FAIL; 1964 } 1965 1966 /* if alternate file is the current buffer, nothing to do */ 1967 if (buf == curbuf) 1968 return OK; 1969 1970 if (text_locked()) 1971 { 1972 text_locked_msg(); 1973 return FAIL; 1974 } 1975 #ifdef FEAT_AUTOCMD 1976 if (curbuf_locked()) 1977 return FAIL; 1978 #endif 1979 1980 /* altfpos may be changed by getfile(), get it now */ 1981 if (lnum == 0) 1982 { 1983 fpos = buflist_findfpos(buf); 1984 lnum = fpos->lnum; 1985 col = fpos->col; 1986 } 1987 else 1988 col = 0; 1989 1990 #ifdef FEAT_WINDOWS 1991 if (options & GETF_SWITCH) 1992 { 1993 /* If 'switchbuf' contains "useopen": jump to first window containing 1994 * "buf" if one exists */ 1995 if (swb_flags & SWB_USEOPEN) 1996 wp = buf_jump_open_win(buf); 1997 /* If 'switchbuf' contians "usetab": jump to first window in any tab 1998 * page containing "buf" if one exists */ 1999 if (wp == NULL && (swb_flags & SWB_USETAB)) 2000 wp = buf_jump_open_tab(buf); 2001 /* If 'switchbuf' contains "split" or "newtab" and the current buffer 2002 * isn't empty: open new window */ 2003 if (wp == NULL && (swb_flags & (SWB_SPLIT | SWB_NEWTAB)) && !bufempty()) 2004 { 2005 if (swb_flags & SWB_NEWTAB) /* Open in a new tab */ 2006 tabpage_new(); 2007 else if (win_split(0, 0) == FAIL) /* Open in a new window */ 2008 return FAIL; 2009 RESET_BINDING(curwin); 2010 } 2011 } 2012 #endif 2013 2014 ++RedrawingDisabled; 2015 if (getfile(buf->b_fnum, NULL, NULL, (options & GETF_SETMARK), 2016 lnum, forceit) <= 0) 2017 { 2018 --RedrawingDisabled; 2019 2020 /* cursor is at to BOL and w_cursor.lnum is checked due to getfile() */ 2021 if (!p_sol && col != 0) 2022 { 2023 curwin->w_cursor.col = col; 2024 check_cursor_col(); 2025 #ifdef FEAT_VIRTUALEDIT 2026 curwin->w_cursor.coladd = 0; 2027 #endif 2028 curwin->w_set_curswant = TRUE; 2029 } 2030 return OK; 2031 } 2032 --RedrawingDisabled; 2033 return FAIL; 2034 } 2035 2036 /* 2037 * go to the last know line number for the current buffer 2038 */ 2039 void 2040 buflist_getfpos() 2041 { 2042 pos_T *fpos; 2043 2044 fpos = buflist_findfpos(curbuf); 2045 2046 curwin->w_cursor.lnum = fpos->lnum; 2047 check_cursor_lnum(); 2048 2049 if (p_sol) 2050 curwin->w_cursor.col = 0; 2051 else 2052 { 2053 curwin->w_cursor.col = fpos->col; 2054 check_cursor_col(); 2055 #ifdef FEAT_VIRTUALEDIT 2056 curwin->w_cursor.coladd = 0; 2057 #endif 2058 curwin->w_set_curswant = TRUE; 2059 } 2060 } 2061 2062 #if defined(FEAT_QUICKFIX) || defined(FEAT_EVAL) || defined(PROTO) 2063 /* 2064 * Find file in buffer list by name (it has to be for the current window). 2065 * Returns NULL if not found. 2066 */ 2067 buf_T * 2068 buflist_findname_exp(fname) 2069 char_u *fname; 2070 { 2071 char_u *ffname; 2072 buf_T *buf = NULL; 2073 2074 /* First make the name into a full path name */ 2075 ffname = FullName_save(fname, 2076 #ifdef UNIX 2077 TRUE /* force expansion, get rid of symbolic links */ 2078 #else 2079 FALSE 2080 #endif 2081 ); 2082 if (ffname != NULL) 2083 { 2084 buf = buflist_findname(ffname); 2085 vim_free(ffname); 2086 } 2087 return buf; 2088 } 2089 #endif 2090 2091 /* 2092 * Find file in buffer list by name (it has to be for the current window). 2093 * "ffname" must have a full path. 2094 * Skips dummy buffers. 2095 * Returns NULL if not found. 2096 */ 2097 buf_T * 2098 buflist_findname(ffname) 2099 char_u *ffname; 2100 { 2101 #ifdef UNIX 2102 struct stat st; 2103 2104 if (mch_stat((char *)ffname, &st) < 0) 2105 st.st_dev = (dev_T)-1; 2106 return buflist_findname_stat(ffname, &st); 2107 } 2108 2109 /* 2110 * Same as buflist_findname(), but pass the stat structure to avoid getting it 2111 * twice for the same file. 2112 * Returns NULL if not found. 2113 */ 2114 static buf_T * 2115 buflist_findname_stat(ffname, stp) 2116 char_u *ffname; 2117 struct stat *stp; 2118 { 2119 #endif 2120 buf_T *buf; 2121 2122 for (buf = firstbuf; buf != NULL; buf = buf->b_next) 2123 if ((buf->b_flags & BF_DUMMY) == 0 && !otherfile_buf(buf, ffname 2124 #ifdef UNIX 2125 , stp 2126 #endif 2127 )) 2128 return buf; 2129 return NULL; 2130 } 2131 2132 #if defined(FEAT_LISTCMDS) || defined(FEAT_EVAL) || defined(FEAT_PERL) || defined(PROTO) 2133 /* 2134 * Find file in buffer list by a regexp pattern. 2135 * Return fnum of the found buffer. 2136 * Return < 0 for error. 2137 */ 2138 int 2139 buflist_findpat(pattern, pattern_end, unlisted, diffmode) 2140 char_u *pattern; 2141 char_u *pattern_end; /* pointer to first char after pattern */ 2142 int unlisted; /* find unlisted buffers */ 2143 int diffmode UNUSED; /* find diff-mode buffers only */ 2144 { 2145 buf_T *buf; 2146 regprog_T *prog; 2147 int match = -1; 2148 int find_listed; 2149 char_u *pat; 2150 char_u *patend; 2151 int attempt; 2152 char_u *p; 2153 int toggledollar; 2154 2155 if (pattern_end == pattern + 1 && (*pattern == '%' || *pattern == '#')) 2156 { 2157 if (*pattern == '%') 2158 match = curbuf->b_fnum; 2159 else 2160 match = curwin->w_alt_fnum; 2161 #ifdef FEAT_DIFF 2162 if (diffmode && !diff_mode_buf(buflist_findnr(match))) 2163 match = -1; 2164 #endif 2165 } 2166 2167 /* 2168 * Try four ways of matching a listed buffer: 2169 * attempt == 0: without '^' or '$' (at any position) 2170 * attempt == 1: with '^' at start (only at position 0) 2171 * attempt == 2: with '$' at end (only match at end) 2172 * attempt == 3: with '^' at start and '$' at end (only full match) 2173 * Repeat this for finding an unlisted buffer if there was no matching 2174 * listed buffer. 2175 */ 2176 else 2177 { 2178 pat = file_pat_to_reg_pat(pattern, pattern_end, NULL, FALSE); 2179 if (pat == NULL) 2180 return -1; 2181 patend = pat + STRLEN(pat) - 1; 2182 toggledollar = (patend > pat && *patend == '$'); 2183 2184 /* First try finding a listed buffer. If not found and "unlisted" 2185 * is TRUE, try finding an unlisted buffer. */ 2186 find_listed = TRUE; 2187 for (;;) 2188 { 2189 for (attempt = 0; attempt <= 3; ++attempt) 2190 { 2191 /* may add '^' and '$' */ 2192 if (toggledollar) 2193 *patend = (attempt < 2) ? NUL : '$'; /* add/remove '$' */ 2194 p = pat; 2195 if (*p == '^' && !(attempt & 1)) /* add/remove '^' */ 2196 ++p; 2197 prog = vim_regcomp(p, p_magic ? RE_MAGIC : 0); 2198 if (prog == NULL) 2199 { 2200 vim_free(pat); 2201 return -1; 2202 } 2203 2204 for (buf = firstbuf; buf != NULL; buf = buf->b_next) 2205 if (buf->b_p_bl == find_listed 2206 #ifdef FEAT_DIFF 2207 && (!diffmode || diff_mode_buf(buf)) 2208 #endif 2209 && buflist_match(prog, buf) != NULL) 2210 { 2211 if (match >= 0) /* already found a match */ 2212 { 2213 match = -2; 2214 break; 2215 } 2216 match = buf->b_fnum; /* remember first match */ 2217 } 2218 2219 vim_free(prog); 2220 if (match >= 0) /* found one match */ 2221 break; 2222 } 2223 2224 /* Only search for unlisted buffers if there was no match with 2225 * a listed buffer. */ 2226 if (!unlisted || !find_listed || match != -1) 2227 break; 2228 find_listed = FALSE; 2229 } 2230 2231 vim_free(pat); 2232 } 2233 2234 if (match == -2) 2235 EMSG2(_("E93: More than one match for %s"), pattern); 2236 else if (match < 0) 2237 EMSG2(_("E94: No matching buffer for %s"), pattern); 2238 return match; 2239 } 2240 #endif 2241 2242 #if defined(FEAT_CMDL_COMPL) || defined(PROTO) 2243 2244 /* 2245 * Find all buffer names that match. 2246 * For command line expansion of ":buf" and ":sbuf". 2247 * Return OK if matches found, FAIL otherwise. 2248 */ 2249 int 2250 ExpandBufnames(pat, num_file, file, options) 2251 char_u *pat; 2252 int *num_file; 2253 char_u ***file; 2254 int options; 2255 { 2256 int count = 0; 2257 buf_T *buf; 2258 int round; 2259 char_u *p; 2260 int attempt; 2261 regprog_T *prog; 2262 char_u *patc; 2263 2264 *num_file = 0; /* return values in case of FAIL */ 2265 *file = NULL; 2266 2267 /* Make a copy of "pat" and change "^" to "\(^\|[\/]\)". */ 2268 if (*pat == '^') 2269 { 2270 patc = alloc((unsigned)STRLEN(pat) + 11); 2271 if (patc == NULL) 2272 return FAIL; 2273 STRCPY(patc, "\\(^\\|[\\/]\\)"); 2274 STRCPY(patc + 11, pat + 1); 2275 } 2276 else 2277 patc = pat; 2278 2279 /* 2280 * attempt == 0: try match with '\<', match at start of word 2281 * attempt == 1: try match without '\<', match anywhere 2282 */ 2283 for (attempt = 0; attempt <= 1; ++attempt) 2284 { 2285 if (attempt > 0 && patc == pat) 2286 break; /* there was no anchor, no need to try again */ 2287 prog = vim_regcomp(patc + attempt * 11, RE_MAGIC); 2288 if (prog == NULL) 2289 { 2290 if (patc != pat) 2291 vim_free(patc); 2292 return FAIL; 2293 } 2294 2295 /* 2296 * round == 1: Count the matches. 2297 * round == 2: Build the array to keep the matches. 2298 */ 2299 for (round = 1; round <= 2; ++round) 2300 { 2301 count = 0; 2302 for (buf = firstbuf; buf != NULL; buf = buf->b_next) 2303 { 2304 if (!buf->b_p_bl) /* skip unlisted buffers */ 2305 continue; 2306 p = buflist_match(prog, buf); 2307 if (p != NULL) 2308 { 2309 if (round == 1) 2310 ++count; 2311 else 2312 { 2313 if (options & WILD_HOME_REPLACE) 2314 p = home_replace_save(buf, p); 2315 else 2316 p = vim_strsave(p); 2317 (*file)[count++] = p; 2318 } 2319 } 2320 } 2321 if (count == 0) /* no match found, break here */ 2322 break; 2323 if (round == 1) 2324 { 2325 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *))); 2326 if (*file == NULL) 2327 { 2328 vim_free(prog); 2329 if (patc != pat) 2330 vim_free(patc); 2331 return FAIL; 2332 } 2333 } 2334 } 2335 vim_free(prog); 2336 if (count) /* match(es) found, break here */ 2337 break; 2338 } 2339 2340 if (patc != pat) 2341 vim_free(patc); 2342 2343 *num_file = count; 2344 return (count == 0 ? FAIL : OK); 2345 } 2346 2347 #endif /* FEAT_CMDL_COMPL */ 2348 2349 #ifdef HAVE_BUFLIST_MATCH 2350 /* 2351 * Check for a match on the file name for buffer "buf" with regprog "prog". 2352 */ 2353 static char_u * 2354 buflist_match(prog, buf) 2355 regprog_T *prog; 2356 buf_T *buf; 2357 { 2358 char_u *match; 2359 2360 /* First try the short file name, then the long file name. */ 2361 match = fname_match(prog, buf->b_sfname); 2362 if (match == NULL) 2363 match = fname_match(prog, buf->b_ffname); 2364 2365 return match; 2366 } 2367 2368 /* 2369 * Try matching the regexp in "prog" with file name "name". 2370 * Return "name" when there is a match, NULL when not. 2371 */ 2372 static char_u * 2373 fname_match(prog, name) 2374 regprog_T *prog; 2375 char_u *name; 2376 { 2377 char_u *match = NULL; 2378 char_u *p; 2379 regmatch_T regmatch; 2380 2381 if (name != NULL) 2382 { 2383 regmatch.regprog = prog; 2384 #ifdef CASE_INSENSITIVE_FILENAME 2385 regmatch.rm_ic = TRUE; /* Always ignore case */ 2386 #else 2387 regmatch.rm_ic = FALSE; /* Never ignore case */ 2388 #endif 2389 2390 if (vim_regexec(®match, name, (colnr_T)0)) 2391 match = name; 2392 else 2393 { 2394 /* Replace $(HOME) with '~' and try matching again. */ 2395 p = home_replace_save(NULL, name); 2396 if (p != NULL && vim_regexec(®match, p, (colnr_T)0)) 2397 match = name; 2398 vim_free(p); 2399 } 2400 } 2401 2402 return match; 2403 } 2404 #endif 2405 2406 /* 2407 * find file in buffer list by number 2408 */ 2409 buf_T * 2410 buflist_findnr(nr) 2411 int nr; 2412 { 2413 buf_T *buf; 2414 2415 if (nr == 0) 2416 nr = curwin->w_alt_fnum; 2417 for (buf = firstbuf; buf != NULL; buf = buf->b_next) 2418 if (buf->b_fnum == nr) 2419 return (buf); 2420 return NULL; 2421 } 2422 2423 /* 2424 * Get name of file 'n' in the buffer list. 2425 * When the file has no name an empty string is returned. 2426 * home_replace() is used to shorten the file name (used for marks). 2427 * Returns a pointer to allocated memory, of NULL when failed. 2428 */ 2429 char_u * 2430 buflist_nr2name(n, fullname, helptail) 2431 int n; 2432 int fullname; 2433 int helptail; /* for help buffers return tail only */ 2434 { 2435 buf_T *buf; 2436 2437 buf = buflist_findnr(n); 2438 if (buf == NULL) 2439 return NULL; 2440 return home_replace_save(helptail ? buf : NULL, 2441 fullname ? buf->b_ffname : buf->b_fname); 2442 } 2443 2444 /* 2445 * Set the "lnum" and "col" for the buffer "buf" and the current window. 2446 * When "copy_options" is TRUE save the local window option values. 2447 * When "lnum" is 0 only do the options. 2448 */ 2449 static void 2450 buflist_setfpos(buf, win, lnum, col, copy_options) 2451 buf_T *buf; 2452 win_T *win; 2453 linenr_T lnum; 2454 colnr_T col; 2455 int copy_options; 2456 { 2457 wininfo_T *wip; 2458 2459 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2460 if (wip->wi_win == win) 2461 break; 2462 if (wip == NULL) 2463 { 2464 /* allocate a new entry */ 2465 wip = (wininfo_T *)alloc_clear((unsigned)sizeof(wininfo_T)); 2466 if (wip == NULL) 2467 return; 2468 wip->wi_win = win; 2469 if (lnum == 0) /* set lnum even when it's 0 */ 2470 lnum = 1; 2471 } 2472 else 2473 { 2474 /* remove the entry from the list */ 2475 if (wip->wi_prev) 2476 wip->wi_prev->wi_next = wip->wi_next; 2477 else 2478 buf->b_wininfo = wip->wi_next; 2479 if (wip->wi_next) 2480 wip->wi_next->wi_prev = wip->wi_prev; 2481 if (copy_options && wip->wi_optset) 2482 { 2483 clear_winopt(&wip->wi_opt); 2484 #ifdef FEAT_FOLDING 2485 deleteFoldRecurse(&wip->wi_folds); 2486 #endif 2487 } 2488 } 2489 if (lnum != 0) 2490 { 2491 wip->wi_fpos.lnum = lnum; 2492 wip->wi_fpos.col = col; 2493 } 2494 if (copy_options) 2495 { 2496 /* Save the window-specific option values. */ 2497 copy_winopt(&win->w_onebuf_opt, &wip->wi_opt); 2498 #ifdef FEAT_FOLDING 2499 wip->wi_fold_manual = win->w_fold_manual; 2500 cloneFoldGrowArray(&win->w_folds, &wip->wi_folds); 2501 #endif 2502 wip->wi_optset = TRUE; 2503 } 2504 2505 /* insert the entry in front of the list */ 2506 wip->wi_next = buf->b_wininfo; 2507 buf->b_wininfo = wip; 2508 wip->wi_prev = NULL; 2509 if (wip->wi_next) 2510 wip->wi_next->wi_prev = wip; 2511 2512 return; 2513 } 2514 2515 #ifdef FEAT_DIFF 2516 static int wininfo_other_tab_diff __ARGS((wininfo_T *wip)); 2517 2518 /* 2519 * Return TRUE when "wip" has 'diff' set and the diff is only for another tab 2520 * page. That's because a diff is local to a tab page. 2521 */ 2522 static int 2523 wininfo_other_tab_diff(wip) 2524 wininfo_T *wip; 2525 { 2526 win_T *wp; 2527 2528 if (wip->wi_opt.wo_diff) 2529 { 2530 for (wp = firstwin; wp != NULL; wp = wp->w_next) 2531 /* return FALSE when it's a window in the current tab page, thus 2532 * the buffer was in diff mode here */ 2533 if (wip->wi_win == wp) 2534 return FALSE; 2535 return TRUE; 2536 } 2537 return FALSE; 2538 } 2539 #endif 2540 2541 /* 2542 * Find info for the current window in buffer "buf". 2543 * If not found, return the info for the most recently used window. 2544 * When "skip_diff_buffer" is TRUE avoid windows with 'diff' set that is in 2545 * another tab page. 2546 * Returns NULL when there isn't any info. 2547 */ 2548 static wininfo_T * 2549 find_wininfo(buf, skip_diff_buffer) 2550 buf_T *buf; 2551 int skip_diff_buffer UNUSED; 2552 { 2553 wininfo_T *wip; 2554 2555 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2556 if (wip->wi_win == curwin 2557 #ifdef FEAT_DIFF 2558 && (!skip_diff_buffer || !wininfo_other_tab_diff(wip)) 2559 #endif 2560 ) 2561 break; 2562 2563 /* If no wininfo for curwin, use the first in the list (that doesn't have 2564 * 'diff' set and is in another tab page). */ 2565 if (wip == NULL) 2566 { 2567 #ifdef FEAT_DIFF 2568 if (skip_diff_buffer) 2569 { 2570 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2571 if (!wininfo_other_tab_diff(wip)) 2572 break; 2573 } 2574 else 2575 #endif 2576 wip = buf->b_wininfo; 2577 } 2578 return wip; 2579 } 2580 2581 /* 2582 * Reset the local window options to the values last used in this window. 2583 * If the buffer wasn't used in this window before, use the values from 2584 * the most recently used window. If the values were never set, use the 2585 * global values for the window. 2586 */ 2587 void 2588 get_winopts(buf) 2589 buf_T *buf; 2590 { 2591 wininfo_T *wip; 2592 2593 clear_winopt(&curwin->w_onebuf_opt); 2594 #ifdef FEAT_FOLDING 2595 clearFolding(curwin); 2596 #endif 2597 2598 wip = find_wininfo(buf, TRUE); 2599 if (wip != NULL && wip->wi_optset) 2600 { 2601 copy_winopt(&wip->wi_opt, &curwin->w_onebuf_opt); 2602 #ifdef FEAT_FOLDING 2603 curwin->w_fold_manual = wip->wi_fold_manual; 2604 curwin->w_foldinvalid = TRUE; 2605 cloneFoldGrowArray(&wip->wi_folds, &curwin->w_folds); 2606 #endif 2607 } 2608 else 2609 copy_winopt(&curwin->w_allbuf_opt, &curwin->w_onebuf_opt); 2610 2611 #ifdef FEAT_FOLDING 2612 /* Set 'foldlevel' to 'foldlevelstart' if it's not negative. */ 2613 if (p_fdls >= 0) 2614 curwin->w_p_fdl = p_fdls; 2615 #endif 2616 #ifdef FEAT_SYN_HL 2617 check_colorcolumn(curwin); 2618 #endif 2619 } 2620 2621 /* 2622 * Find the position (lnum and col) for the buffer 'buf' for the current 2623 * window. 2624 * Returns a pointer to no_position if no position is found. 2625 */ 2626 pos_T * 2627 buflist_findfpos(buf) 2628 buf_T *buf; 2629 { 2630 wininfo_T *wip; 2631 static pos_T no_position = INIT_POS_T(1, 0, 0); 2632 2633 wip = find_wininfo(buf, FALSE); 2634 if (wip != NULL) 2635 return &(wip->wi_fpos); 2636 else 2637 return &no_position; 2638 } 2639 2640 /* 2641 * Find the lnum for the buffer 'buf' for the current window. 2642 */ 2643 linenr_T 2644 buflist_findlnum(buf) 2645 buf_T *buf; 2646 { 2647 return buflist_findfpos(buf)->lnum; 2648 } 2649 2650 #if defined(FEAT_LISTCMDS) || defined(PROTO) 2651 /* 2652 * List all know file names (for :files and :buffers command). 2653 */ 2654 void 2655 buflist_list(eap) 2656 exarg_T *eap; 2657 { 2658 buf_T *buf; 2659 int len; 2660 int i; 2661 2662 for (buf = firstbuf; buf != NULL && !got_int; buf = buf->b_next) 2663 { 2664 /* skip unlisted buffers, unless ! was used */ 2665 if (!buf->b_p_bl && !eap->forceit) 2666 continue; 2667 msg_putchar('\n'); 2668 if (buf_spname(buf) != NULL) 2669 vim_strncpy(NameBuff, buf_spname(buf), MAXPATHL - 1); 2670 else 2671 home_replace(buf, buf->b_fname, NameBuff, MAXPATHL, TRUE); 2672 2673 len = vim_snprintf((char *)IObuff, IOSIZE - 20, "%3d%c%c%c%c%c \"%s\"", 2674 buf->b_fnum, 2675 buf->b_p_bl ? ' ' : 'u', 2676 buf == curbuf ? '%' : 2677 (curwin->w_alt_fnum == buf->b_fnum ? '#' : ' '), 2678 buf->b_ml.ml_mfp == NULL ? ' ' : 2679 (buf->b_nwindows == 0 ? 'h' : 'a'), 2680 !buf->b_p_ma ? '-' : (buf->b_p_ro ? '=' : ' '), 2681 (buf->b_flags & BF_READERR) ? 'x' 2682 : (bufIsChanged(buf) ? '+' : ' '), 2683 NameBuff); 2684 2685 /* put "line 999" in column 40 or after the file name */ 2686 i = 40 - vim_strsize(IObuff); 2687 do 2688 { 2689 IObuff[len++] = ' '; 2690 } while (--i > 0 && len < IOSIZE - 18); 2691 vim_snprintf((char *)IObuff + len, (size_t)(IOSIZE - len), 2692 _("line %ld"), buf == curbuf ? curwin->w_cursor.lnum 2693 : (long)buflist_findlnum(buf)); 2694 msg_outtrans(IObuff); 2695 out_flush(); /* output one line at a time */ 2696 ui_breakcheck(); 2697 } 2698 } 2699 #endif 2700 2701 /* 2702 * Get file name and line number for file 'fnum'. 2703 * Used by DoOneCmd() for translating '%' and '#'. 2704 * Used by insert_reg() and cmdline_paste() for '#' register. 2705 * Return FAIL if not found, OK for success. 2706 */ 2707 int 2708 buflist_name_nr(fnum, fname, lnum) 2709 int fnum; 2710 char_u **fname; 2711 linenr_T *lnum; 2712 { 2713 buf_T *buf; 2714 2715 buf = buflist_findnr(fnum); 2716 if (buf == NULL || buf->b_fname == NULL) 2717 return FAIL; 2718 2719 *fname = buf->b_fname; 2720 *lnum = buflist_findlnum(buf); 2721 2722 return OK; 2723 } 2724 2725 /* 2726 * Set the file name for "buf"' to 'ffname', short file name to 'sfname'. 2727 * The file name with the full path is also remembered, for when :cd is used. 2728 * Returns FAIL for failure (file name already in use by other buffer) 2729 * OK otherwise. 2730 */ 2731 int 2732 setfname(buf, ffname, sfname, message) 2733 buf_T *buf; 2734 char_u *ffname, *sfname; 2735 int message; /* give message when buffer already exists */ 2736 { 2737 buf_T *obuf = NULL; 2738 #ifdef UNIX 2739 struct stat st; 2740 #endif 2741 2742 if (ffname == NULL || *ffname == NUL) 2743 { 2744 /* Removing the name. */ 2745 vim_free(buf->b_ffname); 2746 vim_free(buf->b_sfname); 2747 buf->b_ffname = NULL; 2748 buf->b_sfname = NULL; 2749 #ifdef UNIX 2750 st.st_dev = (dev_T)-1; 2751 #endif 2752 } 2753 else 2754 { 2755 fname_expand(buf, &ffname, &sfname); /* will allocate ffname */ 2756 if (ffname == NULL) /* out of memory */ 2757 return FAIL; 2758 2759 /* 2760 * if the file name is already used in another buffer: 2761 * - if the buffer is loaded, fail 2762 * - if the buffer is not loaded, delete it from the list 2763 */ 2764 #ifdef UNIX 2765 if (mch_stat((char *)ffname, &st) < 0) 2766 st.st_dev = (dev_T)-1; 2767 #endif 2768 if (!(buf->b_flags & BF_DUMMY)) 2769 #ifdef UNIX 2770 obuf = buflist_findname_stat(ffname, &st); 2771 #else 2772 obuf = buflist_findname(ffname); 2773 #endif 2774 if (obuf != NULL && obuf != buf) 2775 { 2776 if (obuf->b_ml.ml_mfp != NULL) /* it's loaded, fail */ 2777 { 2778 if (message) 2779 EMSG(_("E95: Buffer with this name already exists")); 2780 vim_free(ffname); 2781 return FAIL; 2782 } 2783 /* delete from the list */ 2784 close_buffer(NULL, obuf, DOBUF_WIPE, FALSE); 2785 } 2786 sfname = vim_strsave(sfname); 2787 if (ffname == NULL || sfname == NULL) 2788 { 2789 vim_free(sfname); 2790 vim_free(ffname); 2791 return FAIL; 2792 } 2793 #ifdef USE_FNAME_CASE 2794 # ifdef USE_LONG_FNAME 2795 if (USE_LONG_FNAME) 2796 # endif 2797 fname_case(sfname, 0); /* set correct case for short file name */ 2798 #endif 2799 vim_free(buf->b_ffname); 2800 vim_free(buf->b_sfname); 2801 buf->b_ffname = ffname; 2802 buf->b_sfname = sfname; 2803 } 2804 buf->b_fname = buf->b_sfname; 2805 #ifdef UNIX 2806 if (st.st_dev == (dev_T)-1) 2807 buf->b_dev_valid = FALSE; 2808 else 2809 { 2810 buf->b_dev_valid = TRUE; 2811 buf->b_dev = st.st_dev; 2812 buf->b_ino = st.st_ino; 2813 } 2814 #endif 2815 2816 #ifndef SHORT_FNAME 2817 buf->b_shortname = FALSE; 2818 #endif 2819 2820 buf_name_changed(buf); 2821 return OK; 2822 } 2823 2824 /* 2825 * Crude way of changing the name of a buffer. Use with care! 2826 * The name should be relative to the current directory. 2827 */ 2828 void 2829 buf_set_name(fnum, name) 2830 int fnum; 2831 char_u *name; 2832 { 2833 buf_T *buf; 2834 2835 buf = buflist_findnr(fnum); 2836 if (buf != NULL) 2837 { 2838 vim_free(buf->b_sfname); 2839 vim_free(buf->b_ffname); 2840 buf->b_ffname = vim_strsave(name); 2841 buf->b_sfname = NULL; 2842 /* Allocate ffname and expand into full path. Also resolves .lnk 2843 * files on Win32. */ 2844 fname_expand(buf, &buf->b_ffname, &buf->b_sfname); 2845 buf->b_fname = buf->b_sfname; 2846 } 2847 } 2848 2849 /* 2850 * Take care of what needs to be done when the name of buffer "buf" has 2851 * changed. 2852 */ 2853 void 2854 buf_name_changed(buf) 2855 buf_T *buf; 2856 { 2857 /* 2858 * If the file name changed, also change the name of the swapfile 2859 */ 2860 if (buf->b_ml.ml_mfp != NULL) 2861 ml_setname(buf); 2862 2863 if (curwin->w_buffer == buf) 2864 check_arg_idx(curwin); /* check file name for arg list */ 2865 #ifdef FEAT_TITLE 2866 maketitle(); /* set window title */ 2867 #endif 2868 #ifdef FEAT_WINDOWS 2869 status_redraw_all(); /* status lines need to be redrawn */ 2870 #endif 2871 fmarks_check_names(buf); /* check named file marks */ 2872 ml_timestamp(buf); /* reset timestamp */ 2873 } 2874 2875 /* 2876 * set alternate file name for current window 2877 * 2878 * Used by do_one_cmd(), do_write() and do_ecmd(). 2879 * Return the buffer. 2880 */ 2881 buf_T * 2882 setaltfname(ffname, sfname, lnum) 2883 char_u *ffname; 2884 char_u *sfname; 2885 linenr_T lnum; 2886 { 2887 buf_T *buf; 2888 2889 /* Create a buffer. 'buflisted' is not set if it's a new buffer */ 2890 buf = buflist_new(ffname, sfname, lnum, 0); 2891 if (buf != NULL && !cmdmod.keepalt) 2892 curwin->w_alt_fnum = buf->b_fnum; 2893 return buf; 2894 } 2895 2896 /* 2897 * Get alternate file name for current window. 2898 * Return NULL if there isn't any, and give error message if requested. 2899 */ 2900 char_u * 2901 getaltfname(errmsg) 2902 int errmsg; /* give error message */ 2903 { 2904 char_u *fname; 2905 linenr_T dummy; 2906 2907 if (buflist_name_nr(0, &fname, &dummy) == FAIL) 2908 { 2909 if (errmsg) 2910 EMSG(_(e_noalt)); 2911 return NULL; 2912 } 2913 return fname; 2914 } 2915 2916 /* 2917 * Add a file name to the buflist and return its number. 2918 * Uses same flags as buflist_new(), except BLN_DUMMY. 2919 * 2920 * used by qf_init(), main() and doarglist() 2921 */ 2922 int 2923 buflist_add(fname, flags) 2924 char_u *fname; 2925 int flags; 2926 { 2927 buf_T *buf; 2928 2929 buf = buflist_new(fname, NULL, (linenr_T)0, flags); 2930 if (buf != NULL) 2931 return buf->b_fnum; 2932 return 0; 2933 } 2934 2935 #if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) 2936 /* 2937 * Adjust slashes in file names. Called after 'shellslash' was set. 2938 */ 2939 void 2940 buflist_slash_adjust() 2941 { 2942 buf_T *bp; 2943 2944 for (bp = firstbuf; bp != NULL; bp = bp->b_next) 2945 { 2946 if (bp->b_ffname != NULL) 2947 slash_adjust(bp->b_ffname); 2948 if (bp->b_sfname != NULL) 2949 slash_adjust(bp->b_sfname); 2950 } 2951 } 2952 #endif 2953 2954 /* 2955 * Set alternate cursor position for the current buffer and window "win". 2956 * Also save the local window option values. 2957 */ 2958 void 2959 buflist_altfpos(win) 2960 win_T *win; 2961 { 2962 buflist_setfpos(curbuf, win, win->w_cursor.lnum, win->w_cursor.col, TRUE); 2963 } 2964 2965 /* 2966 * Return TRUE if 'ffname' is not the same file as current file. 2967 * Fname must have a full path (expanded by mch_FullName()). 2968 */ 2969 int 2970 otherfile(ffname) 2971 char_u *ffname; 2972 { 2973 return otherfile_buf(curbuf, ffname 2974 #ifdef UNIX 2975 , NULL 2976 #endif 2977 ); 2978 } 2979 2980 static int 2981 otherfile_buf(buf, ffname 2982 #ifdef UNIX 2983 , stp 2984 #endif 2985 ) 2986 buf_T *buf; 2987 char_u *ffname; 2988 #ifdef UNIX 2989 struct stat *stp; 2990 #endif 2991 { 2992 /* no name is different */ 2993 if (ffname == NULL || *ffname == NUL || buf->b_ffname == NULL) 2994 return TRUE; 2995 if (fnamecmp(ffname, buf->b_ffname) == 0) 2996 return FALSE; 2997 #ifdef UNIX 2998 { 2999 struct stat st; 3000 3001 /* If no struct stat given, get it now */ 3002 if (stp == NULL) 3003 { 3004 if (!buf->b_dev_valid || mch_stat((char *)ffname, &st) < 0) 3005 st.st_dev = (dev_T)-1; 3006 stp = &st; 3007 } 3008 /* Use dev/ino to check if the files are the same, even when the names 3009 * are different (possible with links). Still need to compare the 3010 * name above, for when the file doesn't exist yet. 3011 * Problem: The dev/ino changes when a file is deleted (and created 3012 * again) and remains the same when renamed/moved. We don't want to 3013 * mch_stat() each buffer each time, that would be too slow. Get the 3014 * dev/ino again when they appear to match, but not when they appear 3015 * to be different: Could skip a buffer when it's actually the same 3016 * file. */ 3017 if (buf_same_ino(buf, stp)) 3018 { 3019 buf_setino(buf); 3020 if (buf_same_ino(buf, stp)) 3021 return FALSE; 3022 } 3023 } 3024 #endif 3025 return TRUE; 3026 } 3027 3028 #if defined(UNIX) || defined(PROTO) 3029 /* 3030 * Set inode and device number for a buffer. 3031 * Must always be called when b_fname is changed!. 3032 */ 3033 void 3034 buf_setino(buf) 3035 buf_T *buf; 3036 { 3037 struct stat st; 3038 3039 if (buf->b_fname != NULL && mch_stat((char *)buf->b_fname, &st) >= 0) 3040 { 3041 buf->b_dev_valid = TRUE; 3042 buf->b_dev = st.st_dev; 3043 buf->b_ino = st.st_ino; 3044 } 3045 else 3046 buf->b_dev_valid = FALSE; 3047 } 3048 3049 /* 3050 * Return TRUE if dev/ino in buffer "buf" matches with "stp". 3051 */ 3052 static int 3053 buf_same_ino(buf, stp) 3054 buf_T *buf; 3055 struct stat *stp; 3056 { 3057 return (buf->b_dev_valid 3058 && stp->st_dev == buf->b_dev 3059 && stp->st_ino == buf->b_ino); 3060 } 3061 #endif 3062 3063 /* 3064 * Print info about the current buffer. 3065 */ 3066 void 3067 fileinfo(fullname, shorthelp, dont_truncate) 3068 int fullname; /* when non-zero print full path */ 3069 int shorthelp; 3070 int dont_truncate; 3071 { 3072 char_u *name; 3073 int n; 3074 char_u *p; 3075 char_u *buffer; 3076 size_t len; 3077 3078 buffer = alloc(IOSIZE); 3079 if (buffer == NULL) 3080 return; 3081 3082 if (fullname > 1) /* 2 CTRL-G: include buffer number */ 3083 { 3084 vim_snprintf((char *)buffer, IOSIZE, "buf %d: ", curbuf->b_fnum); 3085 p = buffer + STRLEN(buffer); 3086 } 3087 else 3088 p = buffer; 3089 3090 *p++ = '"'; 3091 if (buf_spname(curbuf) != NULL) 3092 vim_strncpy(p, buf_spname(curbuf), IOSIZE - (p - buffer) - 1); 3093 else 3094 { 3095 if (!fullname && curbuf->b_fname != NULL) 3096 name = curbuf->b_fname; 3097 else 3098 name = curbuf->b_ffname; 3099 home_replace(shorthelp ? curbuf : NULL, name, p, 3100 (int)(IOSIZE - (p - buffer)), TRUE); 3101 } 3102 3103 vim_snprintf_add((char *)buffer, IOSIZE, "\"%s%s%s%s%s%s", 3104 curbufIsChanged() ? (shortmess(SHM_MOD) 3105 ? " [+]" : _(" [Modified]")) : " ", 3106 (curbuf->b_flags & BF_NOTEDITED) 3107 #ifdef FEAT_QUICKFIX 3108 && !bt_dontwrite(curbuf) 3109 #endif 3110 ? _("[Not edited]") : "", 3111 (curbuf->b_flags & BF_NEW) 3112 #ifdef FEAT_QUICKFIX 3113 && !bt_dontwrite(curbuf) 3114 #endif 3115 ? _("[New file]") : "", 3116 (curbuf->b_flags & BF_READERR) ? _("[Read errors]") : "", 3117 curbuf->b_p_ro ? (shortmess(SHM_RO) ? "[RO]" 3118 : _("[readonly]")) : "", 3119 (curbufIsChanged() || (curbuf->b_flags & BF_WRITE_MASK) 3120 || curbuf->b_p_ro) ? 3121 " " : ""); 3122 /* With 32 bit longs and more than 21,474,836 lines multiplying by 100 3123 * causes an overflow, thus for large numbers divide instead. */ 3124 if (curwin->w_cursor.lnum > 1000000L) 3125 n = (int)(((long)curwin->w_cursor.lnum) / 3126 ((long)curbuf->b_ml.ml_line_count / 100L)); 3127 else 3128 n = (int)(((long)curwin->w_cursor.lnum * 100L) / 3129 (long)curbuf->b_ml.ml_line_count); 3130 if (curbuf->b_ml.ml_flags & ML_EMPTY) 3131 { 3132 vim_snprintf_add((char *)buffer, IOSIZE, "%s", _(no_lines_msg)); 3133 } 3134 #ifdef FEAT_CMDL_INFO 3135 else if (p_ru) 3136 { 3137 /* Current line and column are already on the screen -- webb */ 3138 if (curbuf->b_ml.ml_line_count == 1) 3139 vim_snprintf_add((char *)buffer, IOSIZE, _("1 line --%d%%--"), n); 3140 else 3141 vim_snprintf_add((char *)buffer, IOSIZE, _("%ld lines --%d%%--"), 3142 (long)curbuf->b_ml.ml_line_count, n); 3143 } 3144 #endif 3145 else 3146 { 3147 vim_snprintf_add((char *)buffer, IOSIZE, 3148 _("line %ld of %ld --%d%%-- col "), 3149 (long)curwin->w_cursor.lnum, 3150 (long)curbuf->b_ml.ml_line_count, 3151 n); 3152 validate_virtcol(); 3153 len = STRLEN(buffer); 3154 col_print(buffer + len, IOSIZE - len, 3155 (int)curwin->w_cursor.col + 1, (int)curwin->w_virtcol + 1); 3156 } 3157 3158 (void)append_arg_number(curwin, buffer, IOSIZE, !shortmess(SHM_FILE)); 3159 3160 if (dont_truncate) 3161 { 3162 /* Temporarily set msg_scroll to avoid the message being truncated. 3163 * First call msg_start() to get the message in the right place. */ 3164 msg_start(); 3165 n = msg_scroll; 3166 msg_scroll = TRUE; 3167 msg(buffer); 3168 msg_scroll = n; 3169 } 3170 else 3171 { 3172 p = msg_trunc_attr(buffer, FALSE, 0); 3173 if (restart_edit != 0 || (msg_scrolled && !need_wait_return)) 3174 /* Need to repeat the message after redrawing when: 3175 * - When restart_edit is set (otherwise there will be a delay 3176 * before redrawing). 3177 * - When the screen was scrolled but there is no wait-return 3178 * prompt. */ 3179 set_keep_msg(p, 0); 3180 } 3181 3182 vim_free(buffer); 3183 } 3184 3185 void 3186 col_print(buf, buflen, col, vcol) 3187 char_u *buf; 3188 size_t buflen; 3189 int col; 3190 int vcol; 3191 { 3192 if (col == vcol) 3193 vim_snprintf((char *)buf, buflen, "%d", col); 3194 else 3195 vim_snprintf((char *)buf, buflen, "%d-%d", col, vcol); 3196 } 3197 3198 #if defined(FEAT_TITLE) || defined(PROTO) 3199 /* 3200 * put file name in title bar of window and in icon title 3201 */ 3202 3203 static char_u *lasttitle = NULL; 3204 static char_u *lasticon = NULL; 3205 3206 void 3207 maketitle() 3208 { 3209 char_u *p; 3210 char_u *t_str = NULL; 3211 char_u *i_name; 3212 char_u *i_str = NULL; 3213 int maxlen = 0; 3214 int len; 3215 int mustset; 3216 char_u buf[IOSIZE]; 3217 int off; 3218 3219 if (!redrawing()) 3220 { 3221 /* Postpone updating the title when 'lazyredraw' is set. */ 3222 need_maketitle = TRUE; 3223 return; 3224 } 3225 3226 need_maketitle = FALSE; 3227 if (!p_title && !p_icon && lasttitle == NULL && lasticon == NULL) 3228 return; 3229 3230 if (p_title) 3231 { 3232 if (p_titlelen > 0) 3233 { 3234 maxlen = p_titlelen * Columns / 100; 3235 if (maxlen < 10) 3236 maxlen = 10; 3237 } 3238 3239 t_str = buf; 3240 if (*p_titlestring != NUL) 3241 { 3242 #ifdef FEAT_STL_OPT 3243 if (stl_syntax & STL_IN_TITLE) 3244 { 3245 int use_sandbox = FALSE; 3246 int save_called_emsg = called_emsg; 3247 3248 # ifdef FEAT_EVAL 3249 use_sandbox = was_set_insecurely((char_u *)"titlestring", 0); 3250 # endif 3251 called_emsg = FALSE; 3252 build_stl_str_hl(curwin, t_str, sizeof(buf), 3253 p_titlestring, use_sandbox, 3254 0, maxlen, NULL, NULL); 3255 if (called_emsg) 3256 set_string_option_direct((char_u *)"titlestring", -1, 3257 (char_u *)"", OPT_FREE, SID_ERROR); 3258 called_emsg |= save_called_emsg; 3259 } 3260 else 3261 #endif 3262 t_str = p_titlestring; 3263 } 3264 else 3265 { 3266 /* format: "fname + (path) (1 of 2) - VIM" */ 3267 3268 #define SPACE_FOR_FNAME (IOSIZE - 100) 3269 #define SPACE_FOR_DIR (IOSIZE - 20) 3270 #define SPACE_FOR_ARGNR (IOSIZE - 10) /* at least room for " - VIM" */ 3271 if (curbuf->b_fname == NULL) 3272 vim_strncpy(buf, (char_u *)_("[No Name]"), SPACE_FOR_FNAME); 3273 else 3274 { 3275 p = transstr(gettail(curbuf->b_fname)); 3276 vim_strncpy(buf, p, SPACE_FOR_FNAME); 3277 vim_free(p); 3278 } 3279 3280 switch (bufIsChanged(curbuf) 3281 + (curbuf->b_p_ro * 2) 3282 + (!curbuf->b_p_ma * 4)) 3283 { 3284 case 1: STRCAT(buf, " +"); break; 3285 case 2: STRCAT(buf, " ="); break; 3286 case 3: STRCAT(buf, " =+"); break; 3287 case 4: 3288 case 6: STRCAT(buf, " -"); break; 3289 case 5: 3290 case 7: STRCAT(buf, " -+"); break; 3291 } 3292 3293 if (curbuf->b_fname != NULL) 3294 { 3295 /* Get path of file, replace home dir with ~ */ 3296 off = (int)STRLEN(buf); 3297 buf[off++] = ' '; 3298 buf[off++] = '('; 3299 home_replace(curbuf, curbuf->b_ffname, 3300 buf + off, SPACE_FOR_DIR - off, TRUE); 3301 #ifdef BACKSLASH_IN_FILENAME 3302 /* avoid "c:/name" to be reduced to "c" */ 3303 if (isalpha(buf[off]) && buf[off + 1] == ':') 3304 off += 2; 3305 #endif 3306 /* remove the file name */ 3307 p = gettail_sep(buf + off); 3308 if (p == buf + off) 3309 /* must be a help buffer */ 3310 vim_strncpy(buf + off, (char_u *)_("help"), 3311 (size_t)(SPACE_FOR_DIR - off - 1)); 3312 else 3313 *p = NUL; 3314 3315 /* Translate unprintable chars and concatenate. Keep some 3316 * room for the server name. When there is no room (very long 3317 * file name) use (...). */ 3318 if (off < SPACE_FOR_DIR) 3319 { 3320 p = transstr(buf + off); 3321 vim_strncpy(buf + off, p, (size_t)(SPACE_FOR_DIR - off)); 3322 vim_free(p); 3323 } 3324 else 3325 { 3326 vim_strncpy(buf + off, (char_u *)"...", 3327 (size_t)(SPACE_FOR_ARGNR - off)); 3328 } 3329 STRCAT(buf, ")"); 3330 } 3331 3332 append_arg_number(curwin, buf, SPACE_FOR_ARGNR, FALSE); 3333 3334 #if defined(FEAT_CLIENTSERVER) 3335 if (serverName != NULL) 3336 { 3337 STRCAT(buf, " - "); 3338 vim_strcat(buf, serverName, IOSIZE); 3339 } 3340 else 3341 #endif 3342 STRCAT(buf, " - VIM"); 3343 3344 if (maxlen > 0) 3345 { 3346 /* make it shorter by removing a bit in the middle */ 3347 if (vim_strsize(buf) > maxlen) 3348 trunc_string(buf, buf, maxlen, IOSIZE); 3349 } 3350 } 3351 } 3352 mustset = ti_change(t_str, &lasttitle); 3353 3354 if (p_icon) 3355 { 3356 i_str = buf; 3357 if (*p_iconstring != NUL) 3358 { 3359 #ifdef FEAT_STL_OPT 3360 if (stl_syntax & STL_IN_ICON) 3361 { 3362 int use_sandbox = FALSE; 3363 int save_called_emsg = called_emsg; 3364 3365 # ifdef FEAT_EVAL 3366 use_sandbox = was_set_insecurely((char_u *)"iconstring", 0); 3367 # endif 3368 called_emsg = FALSE; 3369 build_stl_str_hl(curwin, i_str, sizeof(buf), 3370 p_iconstring, use_sandbox, 3371 0, 0, NULL, NULL); 3372 if (called_emsg) 3373 set_string_option_direct((char_u *)"iconstring", -1, 3374 (char_u *)"", OPT_FREE, SID_ERROR); 3375 called_emsg |= save_called_emsg; 3376 } 3377 else 3378 #endif 3379 i_str = p_iconstring; 3380 } 3381 else 3382 { 3383 if (buf_spname(curbuf) != NULL) 3384 i_name = buf_spname(curbuf); 3385 else /* use file name only in icon */ 3386 i_name = gettail(curbuf->b_ffname); 3387 *i_str = NUL; 3388 /* Truncate name at 100 bytes. */ 3389 len = (int)STRLEN(i_name); 3390 if (len > 100) 3391 { 3392 len -= 100; 3393 #ifdef FEAT_MBYTE 3394 if (has_mbyte) 3395 len += (*mb_tail_off)(i_name, i_name + len) + 1; 3396 #endif 3397 i_name += len; 3398 } 3399 STRCPY(i_str, i_name); 3400 trans_characters(i_str, IOSIZE); 3401 } 3402 } 3403 3404 mustset |= ti_change(i_str, &lasticon); 3405 3406 if (mustset) 3407 resettitle(); 3408 } 3409 3410 /* 3411 * Used for title and icon: Check if "str" differs from "*last". Set "*last" 3412 * from "str" if it does. 3413 * Return TRUE when "*last" changed. 3414 */ 3415 static int 3416 ti_change(str, last) 3417 char_u *str; 3418 char_u **last; 3419 { 3420 if ((str == NULL) != (*last == NULL) 3421 || (str != NULL && *last != NULL && STRCMP(str, *last) != 0)) 3422 { 3423 vim_free(*last); 3424 if (str == NULL) 3425 *last = NULL; 3426 else 3427 *last = vim_strsave(str); 3428 return TRUE; 3429 } 3430 return FALSE; 3431 } 3432 3433 /* 3434 * Put current window title back (used after calling a shell) 3435 */ 3436 void 3437 resettitle() 3438 { 3439 mch_settitle(lasttitle, lasticon); 3440 } 3441 3442 # if defined(EXITFREE) || defined(PROTO) 3443 void 3444 free_titles() 3445 { 3446 vim_free(lasttitle); 3447 vim_free(lasticon); 3448 } 3449 # endif 3450 3451 #endif /* FEAT_TITLE */ 3452 3453 #if defined(FEAT_STL_OPT) || defined(FEAT_GUI_TABLINE) || defined(PROTO) 3454 /* 3455 * Build a string from the status line items in "fmt". 3456 * Return length of string in screen cells. 3457 * 3458 * Normally works for window "wp", except when working for 'tabline' then it 3459 * is "curwin". 3460 * 3461 * Items are drawn interspersed with the text that surrounds it 3462 * Specials: %-<wid>(xxx%) => group, %= => middle marker, %< => truncation 3463 * Item: %-<minwid>.<maxwid><itemch> All but <itemch> are optional 3464 * 3465 * If maxwidth is not zero, the string will be filled at any middle marker 3466 * or truncated if too long, fillchar is used for all whitespace. 3467 */ 3468 int 3469 build_stl_str_hl(wp, out, outlen, fmt, use_sandbox, fillchar, 3470 maxwidth, hltab, tabtab) 3471 win_T *wp; 3472 char_u *out; /* buffer to write into != NameBuff */ 3473 size_t outlen; /* length of out[] */ 3474 char_u *fmt; 3475 int use_sandbox UNUSED; /* "fmt" was set insecurely, use sandbox */ 3476 int fillchar; 3477 int maxwidth; 3478 struct stl_hlrec *hltab; /* return: HL attributes (can be NULL) */ 3479 struct stl_hlrec *tabtab; /* return: tab page nrs (can be NULL) */ 3480 { 3481 char_u *p; 3482 char_u *s; 3483 char_u *t; 3484 char_u *linecont; 3485 #ifdef FEAT_EVAL 3486 win_T *o_curwin; 3487 buf_T *o_curbuf; 3488 #endif 3489 int empty_line; 3490 colnr_T virtcol; 3491 long l; 3492 long n; 3493 int prevchar_isflag; 3494 int prevchar_isitem; 3495 int itemisflag; 3496 int fillable; 3497 char_u *str; 3498 long num; 3499 int width; 3500 int itemcnt; 3501 int curitem; 3502 int groupitem[STL_MAX_ITEM]; 3503 int groupdepth; 3504 struct stl_item 3505 { 3506 char_u *start; 3507 int minwid; 3508 int maxwid; 3509 enum 3510 { 3511 Normal, 3512 Empty, 3513 Group, 3514 Middle, 3515 Highlight, 3516 TabPage, 3517 Trunc 3518 } type; 3519 } item[STL_MAX_ITEM]; 3520 int minwid; 3521 int maxwid; 3522 int zeropad; 3523 char_u base; 3524 char_u opt; 3525 #define TMPLEN 70 3526 char_u tmp[TMPLEN]; 3527 char_u *usefmt = fmt; 3528 struct stl_hlrec *sp; 3529 3530 #ifdef FEAT_EVAL 3531 /* 3532 * When the format starts with "%!" then evaluate it as an expression and 3533 * use the result as the actual format string. 3534 */ 3535 if (fmt[0] == '%' && fmt[1] == '!') 3536 { 3537 usefmt = eval_to_string_safe(fmt + 2, NULL, use_sandbox); 3538 if (usefmt == NULL) 3539 usefmt = fmt; 3540 } 3541 #endif 3542 3543 if (fillchar == 0) 3544 fillchar = ' '; 3545 #ifdef FEAT_MBYTE 3546 /* Can't handle a multi-byte fill character yet. */ 3547 else if (mb_char2len(fillchar) > 1) 3548 fillchar = '-'; 3549 #endif 3550 3551 /* 3552 * Get line & check if empty (cursorpos will show "0-1"). 3553 * If inversion is possible we use it. Else '=' characters are used. 3554 */ 3555 linecont = ml_get_buf(wp->w_buffer, wp->w_cursor.lnum, FALSE); 3556 empty_line = (*linecont == NUL); 3557 3558 groupdepth = 0; 3559 p = out; 3560 curitem = 0; 3561 prevchar_isflag = TRUE; 3562 prevchar_isitem = FALSE; 3563 for (s = usefmt; *s; ) 3564 { 3565 if (curitem == STL_MAX_ITEM) 3566 { 3567 /* There are too many items. Add the error code to the statusline 3568 * to give the user a hint about what went wrong. */ 3569 if (p + 6 < out + outlen) 3570 { 3571 mch_memmove(p, " E541", (size_t)5); 3572 p += 5; 3573 } 3574 break; 3575 } 3576 3577 if (*s != NUL && *s != '%') 3578 prevchar_isflag = prevchar_isitem = FALSE; 3579 3580 /* 3581 * Handle up to the next '%' or the end. 3582 */ 3583 while (*s != NUL && *s != '%' && p + 1 < out + outlen) 3584 *p++ = *s++; 3585 if (*s == NUL || p + 1 >= out + outlen) 3586 break; 3587 3588 /* 3589 * Handle one '%' item. 3590 */ 3591 s++; 3592 if (*s == NUL) /* ignore trailing % */ 3593 break; 3594 if (*s == '%') 3595 { 3596 if (p + 1 >= out + outlen) 3597 break; 3598 *p++ = *s++; 3599 prevchar_isflag = prevchar_isitem = FALSE; 3600 continue; 3601 } 3602 if (*s == STL_MIDDLEMARK) 3603 { 3604 s++; 3605 if (groupdepth > 0) 3606 continue; 3607 item[curitem].type = Middle; 3608 item[curitem++].start = p; 3609 continue; 3610 } 3611 if (*s == STL_TRUNCMARK) 3612 { 3613 s++; 3614 item[curitem].type = Trunc; 3615 item[curitem++].start = p; 3616 continue; 3617 } 3618 if (*s == ')') 3619 { 3620 s++; 3621 if (groupdepth < 1) 3622 continue; 3623 groupdepth--; 3624 3625 t = item[groupitem[groupdepth]].start; 3626 *p = NUL; 3627 l = vim_strsize(t); 3628 if (curitem > groupitem[groupdepth] + 1 3629 && item[groupitem[groupdepth]].minwid == 0) 3630 { 3631 /* remove group if all items are empty */ 3632 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 3633 if (item[n].type == Normal) 3634 break; 3635 if (n == curitem) 3636 { 3637 p = t; 3638 l = 0; 3639 } 3640 } 3641 if (l > item[groupitem[groupdepth]].maxwid) 3642 { 3643 /* truncate, remove n bytes of text at the start */ 3644 #ifdef FEAT_MBYTE 3645 if (has_mbyte) 3646 { 3647 /* Find the first character that should be included. */ 3648 n = 0; 3649 while (l >= item[groupitem[groupdepth]].maxwid) 3650 { 3651 l -= ptr2cells(t + n); 3652 n += (*mb_ptr2len)(t + n); 3653 } 3654 } 3655 else 3656 #endif 3657 n = (long)(p - t) - item[groupitem[groupdepth]].maxwid + 1; 3658 3659 *t = '<'; 3660 mch_memmove(t + 1, t + n, (size_t)(p - (t + n))); 3661 p = p - n + 1; 3662 #ifdef FEAT_MBYTE 3663 /* Fill up space left over by half a double-wide char. */ 3664 while (++l < item[groupitem[groupdepth]].minwid) 3665 *p++ = fillchar; 3666 #endif 3667 3668 /* correct the start of the items for the truncation */ 3669 for (l = groupitem[groupdepth] + 1; l < curitem; l++) 3670 { 3671 item[l].start -= n; 3672 if (item[l].start < t) 3673 item[l].start = t; 3674 } 3675 } 3676 else if (abs(item[groupitem[groupdepth]].minwid) > l) 3677 { 3678 /* fill */ 3679 n = item[groupitem[groupdepth]].minwid; 3680 if (n < 0) 3681 { 3682 /* fill by appending characters */ 3683 n = 0 - n; 3684 while (l++ < n && p + 1 < out + outlen) 3685 *p++ = fillchar; 3686 } 3687 else 3688 { 3689 /* fill by inserting characters */ 3690 mch_memmove(t + n - l, t, (size_t)(p - t)); 3691 l = n - l; 3692 if (p + l >= out + outlen) 3693 l = (long)((out + outlen) - p - 1); 3694 p += l; 3695 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 3696 item[n].start += l; 3697 for ( ; l > 0; l--) 3698 *t++ = fillchar; 3699 } 3700 } 3701 continue; 3702 } 3703 minwid = 0; 3704 maxwid = 9999; 3705 zeropad = FALSE; 3706 l = 1; 3707 if (*s == '0') 3708 { 3709 s++; 3710 zeropad = TRUE; 3711 } 3712 if (*s == '-') 3713 { 3714 s++; 3715 l = -1; 3716 } 3717 if (VIM_ISDIGIT(*s)) 3718 { 3719 minwid = (int)getdigits(&s); 3720 if (minwid < 0) /* overflow */ 3721 minwid = 0; 3722 } 3723 if (*s == STL_USER_HL) 3724 { 3725 item[curitem].type = Highlight; 3726 item[curitem].start = p; 3727 item[curitem].minwid = minwid > 9 ? 1 : minwid; 3728 s++; 3729 curitem++; 3730 continue; 3731 } 3732 if (*s == STL_TABPAGENR || *s == STL_TABCLOSENR) 3733 { 3734 if (*s == STL_TABCLOSENR) 3735 { 3736 if (minwid == 0) 3737 { 3738 /* %X ends the close label, go back to the previously 3739 * define tab label nr. */ 3740 for (n = curitem - 1; n >= 0; --n) 3741 if (item[n].type == TabPage && item[n].minwid >= 0) 3742 { 3743 minwid = item[n].minwid; 3744 break; 3745 } 3746 } 3747 else 3748 /* close nrs are stored as negative values */ 3749 minwid = - minwid; 3750 } 3751 item[curitem].type = TabPage; 3752 item[curitem].start = p; 3753 item[curitem].minwid = minwid; 3754 s++; 3755 curitem++; 3756 continue; 3757 } 3758 if (*s == '.') 3759 { 3760 s++; 3761 if (VIM_ISDIGIT(*s)) 3762 { 3763 maxwid = (int)getdigits(&s); 3764 if (maxwid <= 0) /* overflow */ 3765 maxwid = 50; 3766 } 3767 } 3768 minwid = (minwid > 50 ? 50 : minwid) * l; 3769 if (*s == '(') 3770 { 3771 groupitem[groupdepth++] = curitem; 3772 item[curitem].type = Group; 3773 item[curitem].start = p; 3774 item[curitem].minwid = minwid; 3775 item[curitem].maxwid = maxwid; 3776 s++; 3777 curitem++; 3778 continue; 3779 } 3780 if (vim_strchr(STL_ALL, *s) == NULL) 3781 { 3782 s++; 3783 continue; 3784 } 3785 opt = *s++; 3786 3787 /* OK - now for the real work */ 3788 base = 'D'; 3789 itemisflag = FALSE; 3790 fillable = TRUE; 3791 num = -1; 3792 str = NULL; 3793 switch (opt) 3794 { 3795 case STL_FILEPATH: 3796 case STL_FULLPATH: 3797 case STL_FILENAME: 3798 fillable = FALSE; /* don't change ' ' to fillchar */ 3799 if (buf_spname(wp->w_buffer) != NULL) 3800 vim_strncpy(NameBuff, buf_spname(wp->w_buffer), MAXPATHL - 1); 3801 else 3802 { 3803 t = (opt == STL_FULLPATH) ? wp->w_buffer->b_ffname 3804 : wp->w_buffer->b_fname; 3805 home_replace(wp->w_buffer, t, NameBuff, MAXPATHL, TRUE); 3806 } 3807 trans_characters(NameBuff, MAXPATHL); 3808 if (opt != STL_FILENAME) 3809 str = NameBuff; 3810 else 3811 str = gettail(NameBuff); 3812 break; 3813 3814 case STL_VIM_EXPR: /* '{' */ 3815 itemisflag = TRUE; 3816 t = p; 3817 while (*s != '}' && *s != NUL && p + 1 < out + outlen) 3818 *p++ = *s++; 3819 if (*s != '}') /* missing '}' or out of space */ 3820 break; 3821 s++; 3822 *p = 0; 3823 p = t; 3824 3825 #ifdef FEAT_EVAL 3826 vim_snprintf((char *)tmp, sizeof(tmp), "%d", curbuf->b_fnum); 3827 set_internal_string_var((char_u *)"actual_curbuf", tmp); 3828 3829 o_curbuf = curbuf; 3830 o_curwin = curwin; 3831 curwin = wp; 3832 curbuf = wp->w_buffer; 3833 3834 str = eval_to_string_safe(p, &t, use_sandbox); 3835 3836 curwin = o_curwin; 3837 curbuf = o_curbuf; 3838 do_unlet((char_u *)"g:actual_curbuf", TRUE); 3839 3840 if (str != NULL && *str != 0) 3841 { 3842 if (*skipdigits(str) == NUL) 3843 { 3844 num = atoi((char *)str); 3845 vim_free(str); 3846 str = NULL; 3847 itemisflag = FALSE; 3848 } 3849 } 3850 #endif 3851 break; 3852 3853 case STL_LINE: 3854 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) 3855 ? 0L : (long)(wp->w_cursor.lnum); 3856 break; 3857 3858 case STL_NUMLINES: 3859 num = wp->w_buffer->b_ml.ml_line_count; 3860 break; 3861 3862 case STL_COLUMN: 3863 num = !(State & INSERT) && empty_line 3864 ? 0 : (int)wp->w_cursor.col + 1; 3865 break; 3866 3867 case STL_VIRTCOL: 3868 case STL_VIRTCOL_ALT: 3869 /* In list mode virtcol needs to be recomputed */ 3870 virtcol = wp->w_virtcol; 3871 if (wp->w_p_list && lcs_tab1 == NUL) 3872 { 3873 wp->w_p_list = FALSE; 3874 getvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL); 3875 wp->w_p_list = TRUE; 3876 } 3877 ++virtcol; 3878 /* Don't display %V if it's the same as %c. */ 3879 if (opt == STL_VIRTCOL_ALT 3880 && (virtcol == (colnr_T)(!(State & INSERT) && empty_line 3881 ? 0 : (int)wp->w_cursor.col + 1))) 3882 break; 3883 num = (long)virtcol; 3884 break; 3885 3886 case STL_PERCENTAGE: 3887 num = (int)(((long)wp->w_cursor.lnum * 100L) / 3888 (long)wp->w_buffer->b_ml.ml_line_count); 3889 break; 3890 3891 case STL_ALTPERCENT: 3892 str = tmp; 3893 get_rel_pos(wp, str, TMPLEN); 3894 break; 3895 3896 case STL_ARGLISTSTAT: 3897 fillable = FALSE; 3898 tmp[0] = 0; 3899 if (append_arg_number(wp, tmp, (int)sizeof(tmp), FALSE)) 3900 str = tmp; 3901 break; 3902 3903 case STL_KEYMAP: 3904 fillable = FALSE; 3905 if (get_keymap_str(wp, tmp, TMPLEN)) 3906 str = tmp; 3907 break; 3908 case STL_PAGENUM: 3909 #if defined(FEAT_PRINTER) || defined(FEAT_GUI_TABLINE) 3910 num = printer_page_num; 3911 #else 3912 num = 0; 3913 #endif 3914 break; 3915 3916 case STL_BUFNO: 3917 num = wp->w_buffer->b_fnum; 3918 break; 3919 3920 case STL_OFFSET_X: 3921 base = 'X'; 3922 case STL_OFFSET: 3923 #ifdef FEAT_BYTEOFF 3924 l = ml_find_line_or_offset(wp->w_buffer, wp->w_cursor.lnum, NULL); 3925 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) || l < 0 ? 3926 0L : l + 1 + (!(State & INSERT) && empty_line ? 3927 0 : (int)wp->w_cursor.col); 3928 #endif 3929 break; 3930 3931 case STL_BYTEVAL_X: 3932 base = 'X'; 3933 case STL_BYTEVAL: 3934 if (wp->w_cursor.col > (colnr_T)STRLEN(linecont)) 3935 num = 0; 3936 else 3937 { 3938 #ifdef FEAT_MBYTE 3939 num = (*mb_ptr2char)(linecont + wp->w_cursor.col); 3940 #else 3941 num = linecont[wp->w_cursor.col]; 3942 #endif 3943 } 3944 if (num == NL) 3945 num = 0; 3946 else if (num == CAR && get_fileformat(wp->w_buffer) == EOL_MAC) 3947 num = NL; 3948 break; 3949 3950 case STL_ROFLAG: 3951 case STL_ROFLAG_ALT: 3952 itemisflag = TRUE; 3953 if (wp->w_buffer->b_p_ro) 3954 str = (char_u *)((opt == STL_ROFLAG_ALT) ? ",RO" : "[RO]"); 3955 break; 3956 3957 case STL_HELPFLAG: 3958 case STL_HELPFLAG_ALT: 3959 itemisflag = TRUE; 3960 if (wp->w_buffer->b_help) 3961 str = (char_u *)((opt == STL_HELPFLAG_ALT) ? ",HLP" 3962 : _("[Help]")); 3963 break; 3964 3965 #ifdef FEAT_AUTOCMD 3966 case STL_FILETYPE: 3967 if (*wp->w_buffer->b_p_ft != NUL 3968 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 3) 3969 { 3970 vim_snprintf((char *)tmp, sizeof(tmp), "[%s]", 3971 wp->w_buffer->b_p_ft); 3972 str = tmp; 3973 } 3974 break; 3975 3976 case STL_FILETYPE_ALT: 3977 itemisflag = TRUE; 3978 if (*wp->w_buffer->b_p_ft != NUL 3979 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 2) 3980 { 3981 vim_snprintf((char *)tmp, sizeof(tmp), ",%s", 3982 wp->w_buffer->b_p_ft); 3983 for (t = tmp; *t != 0; t++) 3984 *t = TOUPPER_LOC(*t); 3985 str = tmp; 3986 } 3987 break; 3988 #endif 3989 3990 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) 3991 case STL_PREVIEWFLAG: 3992 case STL_PREVIEWFLAG_ALT: 3993 itemisflag = TRUE; 3994 if (wp->w_p_pvw) 3995 str = (char_u *)((opt == STL_PREVIEWFLAG_ALT) ? ",PRV" 3996 : _("[Preview]")); 3997 break; 3998 3999 case STL_QUICKFIX: 4000 if (bt_quickfix(wp->w_buffer)) 4001 str = (char_u *)(wp->w_llist_ref 4002 ? _(msg_loclist) 4003 : _(msg_qflist)); 4004 break; 4005 #endif 4006 4007 case STL_MODIFIED: 4008 case STL_MODIFIED_ALT: 4009 itemisflag = TRUE; 4010 switch ((opt == STL_MODIFIED_ALT) 4011 + bufIsChanged(wp->w_buffer) * 2 4012 + (!wp->w_buffer->b_p_ma) * 4) 4013 { 4014 case 2: str = (char_u *)"[+]"; break; 4015 case 3: str = (char_u *)",+"; break; 4016 case 4: str = (char_u *)"[-]"; break; 4017 case 5: str = (char_u *)",-"; break; 4018 case 6: str = (char_u *)"[+-]"; break; 4019 case 7: str = (char_u *)",+-"; break; 4020 } 4021 break; 4022 4023 case STL_HIGHLIGHT: 4024 t = s; 4025 while (*s != '#' && *s != NUL) 4026 ++s; 4027 if (*s == '#') 4028 { 4029 item[curitem].type = Highlight; 4030 item[curitem].start = p; 4031 item[curitem].minwid = -syn_namen2id(t, (int)(s - t)); 4032 curitem++; 4033 } 4034 ++s; 4035 continue; 4036 } 4037 4038 item[curitem].start = p; 4039 item[curitem].type = Normal; 4040 if (str != NULL && *str) 4041 { 4042 t = str; 4043 if (itemisflag) 4044 { 4045 if ((t[0] && t[1]) 4046 && ((!prevchar_isitem && *t == ',') 4047 || (prevchar_isflag && *t == ' '))) 4048 t++; 4049 prevchar_isflag = TRUE; 4050 } 4051 l = vim_strsize(t); 4052 if (l > 0) 4053 prevchar_isitem = TRUE; 4054 if (l > maxwid) 4055 { 4056 while (l >= maxwid) 4057 #ifdef FEAT_MBYTE 4058 if (has_mbyte) 4059 { 4060 l -= ptr2cells(t); 4061 t += (*mb_ptr2len)(t); 4062 } 4063 else 4064 #endif 4065 l -= byte2cells(*t++); 4066 if (p + 1 >= out + outlen) 4067 break; 4068 *p++ = '<'; 4069 } 4070 if (minwid > 0) 4071 { 4072 for (; l < minwid && p + 1 < out + outlen; l++) 4073 { 4074 /* Don't put a "-" in front of a digit. */ 4075 if (l + 1 == minwid && fillchar == '-' && VIM_ISDIGIT(*t)) 4076 *p++ = ' '; 4077 else 4078 *p++ = fillchar; 4079 } 4080 minwid = 0; 4081 } 4082 else 4083 minwid *= -1; 4084 while (*t && p + 1 < out + outlen) 4085 { 4086 *p++ = *t++; 4087 /* Change a space by fillchar, unless fillchar is '-' and a 4088 * digit follows. */ 4089 if (fillable && p[-1] == ' ' 4090 && (!VIM_ISDIGIT(*t) || fillchar != '-')) 4091 p[-1] = fillchar; 4092 } 4093 for (; l < minwid && p + 1 < out + outlen; l++) 4094 *p++ = fillchar; 4095 } 4096 else if (num >= 0) 4097 { 4098 int nbase = (base == 'D' ? 10 : (base == 'O' ? 8 : 16)); 4099 char_u nstr[20]; 4100 4101 if (p + 20 >= out + outlen) 4102 break; /* not sufficient space */ 4103 prevchar_isitem = TRUE; 4104 t = nstr; 4105 if (opt == STL_VIRTCOL_ALT) 4106 { 4107 *t++ = '-'; 4108 minwid--; 4109 } 4110 *t++ = '%'; 4111 if (zeropad) 4112 *t++ = '0'; 4113 *t++ = '*'; 4114 *t++ = nbase == 16 ? base : (char_u)(nbase == 8 ? 'o' : 'd'); 4115 *t = 0; 4116 4117 for (n = num, l = 1; n >= nbase; n /= nbase) 4118 l++; 4119 if (opt == STL_VIRTCOL_ALT) 4120 l++; 4121 if (l > maxwid) 4122 { 4123 l += 2; 4124 n = l - maxwid; 4125 while (l-- > maxwid) 4126 num /= nbase; 4127 *t++ = '>'; 4128 *t++ = '%'; 4129 *t = t[-3]; 4130 *++t = 0; 4131 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4132 0, num, n); 4133 } 4134 else 4135 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4136 minwid, num); 4137 p += STRLEN(p); 4138 } 4139 else 4140 item[curitem].type = Empty; 4141 4142 if (opt == STL_VIM_EXPR) 4143 vim_free(str); 4144 4145 if (num >= 0 || (!itemisflag && str && *str)) 4146 prevchar_isflag = FALSE; /* Item not NULL, but not a flag */ 4147 curitem++; 4148 } 4149 *p = NUL; 4150 itemcnt = curitem; 4151 4152 #ifdef FEAT_EVAL 4153 if (usefmt != fmt) 4154 vim_free(usefmt); 4155 #endif 4156 4157 width = vim_strsize(out); 4158 if (maxwidth > 0 && width > maxwidth) 4159 { 4160 /* Result is too long, must truncate somewhere. */ 4161 l = 0; 4162 if (itemcnt == 0) 4163 s = out; 4164 else 4165 { 4166 for ( ; l < itemcnt; l++) 4167 if (item[l].type == Trunc) 4168 { 4169 /* Truncate at %< item. */ 4170 s = item[l].start; 4171 break; 4172 } 4173 if (l == itemcnt) 4174 { 4175 /* No %< item, truncate first item. */ 4176 s = item[0].start; 4177 l = 0; 4178 } 4179 } 4180 4181 if (width - vim_strsize(s) >= maxwidth) 4182 { 4183 /* Truncation mark is beyond max length */ 4184 #ifdef FEAT_MBYTE 4185 if (has_mbyte) 4186 { 4187 s = out; 4188 width = 0; 4189 for (;;) 4190 { 4191 width += ptr2cells(s); 4192 if (width >= maxwidth) 4193 break; 4194 s += (*mb_ptr2len)(s); 4195 } 4196 /* Fill up for half a double-wide character. */ 4197 while (++width < maxwidth) 4198 *s++ = fillchar; 4199 } 4200 else 4201 #endif 4202 s = out + maxwidth - 1; 4203 for (l = 0; l < itemcnt; l++) 4204 if (item[l].start > s) 4205 break; 4206 itemcnt = l; 4207 *s++ = '>'; 4208 *s = 0; 4209 } 4210 else 4211 { 4212 #ifdef FEAT_MBYTE 4213 if (has_mbyte) 4214 { 4215 n = 0; 4216 while (width >= maxwidth) 4217 { 4218 width -= ptr2cells(s + n); 4219 n += (*mb_ptr2len)(s + n); 4220 } 4221 } 4222 else 4223 #endif 4224 n = width - maxwidth + 1; 4225 p = s + n; 4226 STRMOVE(s + 1, p); 4227 *s = '<'; 4228 4229 /* Fill up for half a double-wide character. */ 4230 while (++width < maxwidth) 4231 { 4232 s = s + STRLEN(s); 4233 *s++ = fillchar; 4234 *s = NUL; 4235 } 4236 4237 --n; /* count the '<' */ 4238 for (; l < itemcnt; l++) 4239 { 4240 if (item[l].start - n >= s) 4241 item[l].start -= n; 4242 else 4243 item[l].start = s; 4244 } 4245 } 4246 width = maxwidth; 4247 } 4248 else if (width < maxwidth && STRLEN(out) + maxwidth - width + 1 < outlen) 4249 { 4250 /* Apply STL_MIDDLE if any */ 4251 for (l = 0; l < itemcnt; l++) 4252 if (item[l].type == Middle) 4253 break; 4254 if (l < itemcnt) 4255 { 4256 p = item[l].start + maxwidth - width; 4257 STRMOVE(p, item[l].start); 4258 for (s = item[l].start; s < p; s++) 4259 *s = fillchar; 4260 for (l++; l < itemcnt; l++) 4261 item[l].start += maxwidth - width; 4262 width = maxwidth; 4263 } 4264 } 4265 4266 /* Store the info about highlighting. */ 4267 if (hltab != NULL) 4268 { 4269 sp = hltab; 4270 for (l = 0; l < itemcnt; l++) 4271 { 4272 if (item[l].type == Highlight) 4273 { 4274 sp->start = item[l].start; 4275 sp->userhl = item[l].minwid; 4276 sp++; 4277 } 4278 } 4279 sp->start = NULL; 4280 sp->userhl = 0; 4281 } 4282 4283 /* Store the info about tab pages labels. */ 4284 if (tabtab != NULL) 4285 { 4286 sp = tabtab; 4287 for (l = 0; l < itemcnt; l++) 4288 { 4289 if (item[l].type == TabPage) 4290 { 4291 sp->start = item[l].start; 4292 sp->userhl = item[l].minwid; 4293 sp++; 4294 } 4295 } 4296 sp->start = NULL; 4297 sp->userhl = 0; 4298 } 4299 4300 return width; 4301 } 4302 #endif /* FEAT_STL_OPT */ 4303 4304 #if defined(FEAT_STL_OPT) || defined(FEAT_CMDL_INFO) \ 4305 || defined(FEAT_GUI_TABLINE) || defined(PROTO) 4306 /* 4307 * Get relative cursor position in window into "buf[buflen]", in the form 99%, 4308 * using "Top", "Bot" or "All" when appropriate. 4309 */ 4310 void 4311 get_rel_pos(wp, buf, buflen) 4312 win_T *wp; 4313 char_u *buf; 4314 int buflen; 4315 { 4316 long above; /* number of lines above window */ 4317 long below; /* number of lines below window */ 4318 4319 above = wp->w_topline - 1; 4320 #ifdef FEAT_DIFF 4321 above += diff_check_fill(wp, wp->w_topline) - wp->w_topfill; 4322 #endif 4323 below = wp->w_buffer->b_ml.ml_line_count - wp->w_botline + 1; 4324 if (below <= 0) 4325 vim_strncpy(buf, (char_u *)(above == 0 ? _("All") : _("Bot")), 4326 (size_t)(buflen - 1)); 4327 else if (above <= 0) 4328 vim_strncpy(buf, (char_u *)_("Top"), (size_t)(buflen - 1)); 4329 else 4330 vim_snprintf((char *)buf, (size_t)buflen, "%2d%%", above > 1000000L 4331 ? (int)(above / ((above + below) / 100L)) 4332 : (int)(above * 100L / (above + below))); 4333 } 4334 #endif 4335 4336 /* 4337 * Append (file 2 of 8) to "buf[buflen]", if editing more than one file. 4338 * Return TRUE if it was appended. 4339 */ 4340 static int 4341 append_arg_number(wp, buf, buflen, add_file) 4342 win_T *wp; 4343 char_u *buf; 4344 int buflen; 4345 int add_file; /* Add "file" before the arg number */ 4346 { 4347 char_u *p; 4348 4349 if (ARGCOUNT <= 1) /* nothing to do */ 4350 return FALSE; 4351 4352 p = buf + STRLEN(buf); /* go to the end of the buffer */ 4353 if (p - buf + 35 >= buflen) /* getting too long */ 4354 return FALSE; 4355 *p++ = ' '; 4356 *p++ = '('; 4357 if (add_file) 4358 { 4359 STRCPY(p, "file "); 4360 p += 5; 4361 } 4362 vim_snprintf((char *)p, (size_t)(buflen - (p - buf)), 4363 wp->w_arg_idx_invalid ? "(%d) of %d)" 4364 : "%d of %d)", wp->w_arg_idx + 1, ARGCOUNT); 4365 return TRUE; 4366 } 4367 4368 /* 4369 * If fname is not a full path, make it a full path. 4370 * Returns pointer to allocated memory (NULL for failure). 4371 */ 4372 char_u * 4373 fix_fname(fname) 4374 char_u *fname; 4375 { 4376 /* 4377 * Force expanding the path always for Unix, because symbolic links may 4378 * mess up the full path name, even though it starts with a '/'. 4379 * Also expand when there is ".." in the file name, try to remove it, 4380 * because "c:/src/../README" is equal to "c:/README". 4381 * Similarly "c:/src//file" is equal to "c:/src/file". 4382 * For MS-Windows also expand names like "longna~1" to "longname". 4383 */ 4384 #ifdef UNIX 4385 return FullName_save(fname, TRUE); 4386 #else 4387 if (!vim_isAbsName(fname) 4388 || strstr((char *)fname, "..") != NULL 4389 || strstr((char *)fname, "//") != NULL 4390 # ifdef BACKSLASH_IN_FILENAME 4391 || strstr((char *)fname, "\\\\") != NULL 4392 # endif 4393 # if defined(MSWIN) || defined(DJGPP) 4394 || vim_strchr(fname, '~') != NULL 4395 # endif 4396 ) 4397 return FullName_save(fname, FALSE); 4398 4399 fname = vim_strsave(fname); 4400 4401 # ifdef USE_FNAME_CASE 4402 # ifdef USE_LONG_FNAME 4403 if (USE_LONG_FNAME) 4404 # endif 4405 { 4406 if (fname != NULL) 4407 fname_case(fname, 0); /* set correct case for file name */ 4408 } 4409 # endif 4410 4411 return fname; 4412 #endif 4413 } 4414 4415 /* 4416 * Make "ffname" a full file name, set "sfname" to "ffname" if not NULL. 4417 * "ffname" becomes a pointer to allocated memory (or NULL). 4418 */ 4419 void 4420 fname_expand(buf, ffname, sfname) 4421 buf_T *buf UNUSED; 4422 char_u **ffname; 4423 char_u **sfname; 4424 { 4425 if (*ffname == NULL) /* if no file name given, nothing to do */ 4426 return; 4427 if (*sfname == NULL) /* if no short file name given, use ffname */ 4428 *sfname = *ffname; 4429 *ffname = fix_fname(*ffname); /* expand to full path */ 4430 4431 #ifdef FEAT_SHORTCUT 4432 if (!buf->b_p_bin) 4433 { 4434 char_u *rfname; 4435 4436 /* If the file name is a shortcut file, use the file it links to. */ 4437 rfname = mch_resolve_shortcut(*ffname); 4438 if (rfname != NULL) 4439 { 4440 vim_free(*ffname); 4441 *ffname = rfname; 4442 *sfname = rfname; 4443 } 4444 } 4445 #endif 4446 } 4447 4448 /* 4449 * Get the file name for an argument list entry. 4450 */ 4451 char_u * 4452 alist_name(aep) 4453 aentry_T *aep; 4454 { 4455 buf_T *bp; 4456 4457 /* Use the name from the associated buffer if it exists. */ 4458 bp = buflist_findnr(aep->ae_fnum); 4459 if (bp == NULL || bp->b_fname == NULL) 4460 return aep->ae_fname; 4461 return bp->b_fname; 4462 } 4463 4464 #if defined(FEAT_WINDOWS) || defined(PROTO) 4465 /* 4466 * do_arg_all(): Open up to 'count' windows, one for each argument. 4467 */ 4468 void 4469 do_arg_all(count, forceit, keep_tabs) 4470 int count; 4471 int forceit; /* hide buffers in current windows */ 4472 int keep_tabs; /* keep current tabs, for ":tab drop file" */ 4473 { 4474 int i; 4475 win_T *wp, *wpnext; 4476 char_u *opened; /* Array of weight for which args are open: 4477 * 0: not opened 4478 * 1: opened in other tab 4479 * 2: opened in curtab 4480 * 3: opened in curtab and curwin 4481 */ 4482 int opened_len; /* length of opened[] */ 4483 int use_firstwin = FALSE; /* use first window for arglist */ 4484 int split_ret = OK; 4485 int p_ea_save; 4486 alist_T *alist; /* argument list to be used */ 4487 buf_T *buf; 4488 tabpage_T *tpnext; 4489 int had_tab = cmdmod.tab; 4490 win_T *old_curwin, *last_curwin; 4491 tabpage_T *old_curtab, *last_curtab; 4492 win_T *new_curwin = NULL; 4493 tabpage_T *new_curtab = NULL; 4494 4495 if (ARGCOUNT <= 0) 4496 { 4497 /* Don't give an error message. We don't want it when the ":all" 4498 * command is in the .vimrc. */ 4499 return; 4500 } 4501 setpcmark(); 4502 4503 opened_len = ARGCOUNT; 4504 opened = alloc_clear((unsigned)opened_len); 4505 if (opened == NULL) 4506 return; 4507 4508 /* Autocommands may do anything to the argument list. Make sure it's not 4509 * freed while we are working here by "locking" it. We still have to 4510 * watch out for its size to be changed. */ 4511 alist = curwin->w_alist; 4512 ++alist->al_refcount; 4513 4514 old_curwin = curwin; 4515 old_curtab = curtab; 4516 4517 #ifdef FEAT_GUI 4518 need_mouse_correct = TRUE; 4519 #endif 4520 4521 /* 4522 * Try closing all windows that are not in the argument list. 4523 * Also close windows that are not full width; 4524 * When 'hidden' or "forceit" set the buffer becomes hidden. 4525 * Windows that have a changed buffer and can't be hidden won't be closed. 4526 * When the ":tab" modifier was used do this for all tab pages. 4527 */ 4528 if (had_tab > 0) 4529 goto_tabpage_tp(first_tabpage, TRUE); 4530 for (;;) 4531 { 4532 tpnext = curtab->tp_next; 4533 for (wp = firstwin; wp != NULL; wp = wpnext) 4534 { 4535 wpnext = wp->w_next; 4536 buf = wp->w_buffer; 4537 if (buf->b_ffname == NULL 4538 || (!keep_tabs && buf->b_nwindows > 1) 4539 #ifdef FEAT_VERTSPLIT 4540 || wp->w_width != Columns 4541 #endif 4542 ) 4543 i = opened_len; 4544 else 4545 { 4546 /* check if the buffer in this window is in the arglist */ 4547 for (i = 0; i < opened_len; ++i) 4548 { 4549 if (i < alist->al_ga.ga_len 4550 && (AARGLIST(alist)[i].ae_fnum == buf->b_fnum 4551 || fullpathcmp(alist_name(&AARGLIST(alist)[i]), 4552 buf->b_ffname, TRUE) & FPC_SAME)) 4553 { 4554 int weight = 1; 4555 4556 if (old_curtab == curtab) 4557 { 4558 ++weight; 4559 if (old_curwin == wp) 4560 ++weight; 4561 } 4562 4563 if (weight > (int)opened[i]) 4564 { 4565 opened[i] = (char_u)weight; 4566 if (i == 0) 4567 { 4568 if (new_curwin != NULL) 4569 new_curwin->w_arg_idx = opened_len; 4570 new_curwin = wp; 4571 new_curtab = curtab; 4572 } 4573 } 4574 else if (keep_tabs) 4575 i = opened_len; 4576 4577 if (wp->w_alist != alist) 4578 { 4579 /* Use the current argument list for all windows 4580 * containing a file from it. */ 4581 alist_unlink(wp->w_alist); 4582 wp->w_alist = alist; 4583 ++wp->w_alist->al_refcount; 4584 } 4585 break; 4586 } 4587 } 4588 } 4589 wp->w_arg_idx = i; 4590 4591 if (i == opened_len && !keep_tabs)/* close this window */ 4592 { 4593 if (P_HID(buf) || forceit || buf->b_nwindows > 1 4594 || !bufIsChanged(buf)) 4595 { 4596 /* If the buffer was changed, and we would like to hide it, 4597 * try autowriting. */ 4598 if (!P_HID(buf) && buf->b_nwindows <= 1 4599 && bufIsChanged(buf)) 4600 { 4601 (void)autowrite(buf, FALSE); 4602 #ifdef FEAT_AUTOCMD 4603 /* check if autocommands removed the window */ 4604 if (!win_valid(wp) || !buf_valid(buf)) 4605 { 4606 wpnext = firstwin; /* start all over... */ 4607 continue; 4608 } 4609 #endif 4610 } 4611 #ifdef FEAT_WINDOWS 4612 /* don't close last window */ 4613 if (firstwin == lastwin 4614 && (first_tabpage->tp_next == NULL || !had_tab)) 4615 #endif 4616 use_firstwin = TRUE; 4617 #ifdef FEAT_WINDOWS 4618 else 4619 { 4620 win_close(wp, !P_HID(buf) && !bufIsChanged(buf)); 4621 # ifdef FEAT_AUTOCMD 4622 /* check if autocommands removed the next window */ 4623 if (!win_valid(wpnext)) 4624 wpnext = firstwin; /* start all over... */ 4625 # endif 4626 } 4627 #endif 4628 } 4629 } 4630 } 4631 4632 /* Without the ":tab" modifier only do the current tab page. */ 4633 if (had_tab == 0 || tpnext == NULL) 4634 break; 4635 4636 # ifdef FEAT_AUTOCMD 4637 /* check if autocommands removed the next tab page */ 4638 if (!valid_tabpage(tpnext)) 4639 tpnext = first_tabpage; /* start all over...*/ 4640 # endif 4641 goto_tabpage_tp(tpnext, TRUE); 4642 } 4643 4644 /* 4645 * Open a window for files in the argument list that don't have one. 4646 * ARGCOUNT may change while doing this, because of autocommands. 4647 */ 4648 if (count > opened_len || count <= 0) 4649 count = opened_len; 4650 4651 #ifdef FEAT_AUTOCMD 4652 /* Don't execute Win/Buf Enter/Leave autocommands here. */ 4653 ++autocmd_no_enter; 4654 ++autocmd_no_leave; 4655 #endif 4656 last_curwin = curwin; 4657 last_curtab = curtab; 4658 win_enter(lastwin, FALSE); 4659 #ifdef FEAT_WINDOWS 4660 /* ":drop all" should re-use an empty window to avoid "--remote-tab" 4661 * leaving an empty tab page when executed locally. */ 4662 if (keep_tabs && bufempty() && curbuf->b_nwindows == 1 4663 && curbuf->b_ffname == NULL && !curbuf->b_changed) 4664 use_firstwin = TRUE; 4665 #endif 4666 4667 for (i = 0; i < count && i < opened_len && !got_int; ++i) 4668 { 4669 if (alist == &global_alist && i == global_alist.al_ga.ga_len - 1) 4670 arg_had_last = TRUE; 4671 if (opened[i] > 0) 4672 { 4673 /* Move the already present window to below the current window */ 4674 if (curwin->w_arg_idx != i) 4675 { 4676 for (wpnext = firstwin; wpnext != NULL; wpnext = wpnext->w_next) 4677 { 4678 if (wpnext->w_arg_idx == i) 4679 { 4680 if (keep_tabs) 4681 { 4682 new_curwin = wpnext; 4683 new_curtab = curtab; 4684 } 4685 else 4686 win_move_after(wpnext, curwin); 4687 break; 4688 } 4689 } 4690 } 4691 } 4692 else if (split_ret == OK) 4693 { 4694 if (!use_firstwin) /* split current window */ 4695 { 4696 p_ea_save = p_ea; 4697 p_ea = TRUE; /* use space from all windows */ 4698 split_ret = win_split(0, WSP_ROOM | WSP_BELOW); 4699 p_ea = p_ea_save; 4700 if (split_ret == FAIL) 4701 continue; 4702 } 4703 #ifdef FEAT_AUTOCMD 4704 else /* first window: do autocmd for leaving this buffer */ 4705 --autocmd_no_leave; 4706 #endif 4707 4708 /* 4709 * edit file "i" 4710 */ 4711 curwin->w_arg_idx = i; 4712 if (i == 0) 4713 { 4714 new_curwin = curwin; 4715 new_curtab = curtab; 4716 } 4717 (void)do_ecmd(0, alist_name(&AARGLIST(alist)[i]), NULL, NULL, 4718 ECMD_ONE, 4719 ((P_HID(curwin->w_buffer) 4720 || bufIsChanged(curwin->w_buffer)) ? ECMD_HIDE : 0) 4721 + ECMD_OLDBUF, curwin); 4722 #ifdef FEAT_AUTOCMD 4723 if (use_firstwin) 4724 ++autocmd_no_leave; 4725 #endif 4726 use_firstwin = FALSE; 4727 } 4728 ui_breakcheck(); 4729 4730 /* When ":tab" was used open a new tab for a new window repeatedly. */ 4731 if (had_tab > 0 && tabpage_index(NULL) <= p_tpm) 4732 cmdmod.tab = 9999; 4733 } 4734 4735 /* Remove the "lock" on the argument list. */ 4736 alist_unlink(alist); 4737 4738 #ifdef FEAT_AUTOCMD 4739 --autocmd_no_enter; 4740 #endif 4741 /* restore last referenced tabpage's curwin */ 4742 if (last_curtab != new_curtab) 4743 { 4744 if (valid_tabpage(last_curtab)) 4745 goto_tabpage_tp(last_curtab, TRUE); 4746 if (win_valid(last_curwin)) 4747 win_enter(last_curwin, FALSE); 4748 } 4749 /* to window with first arg */ 4750 if (valid_tabpage(new_curtab)) 4751 goto_tabpage_tp(new_curtab, TRUE); 4752 if (win_valid(new_curwin)) 4753 win_enter(new_curwin, FALSE); 4754 4755 #ifdef FEAT_AUTOCMD 4756 --autocmd_no_leave; 4757 #endif 4758 vim_free(opened); 4759 } 4760 4761 # if defined(FEAT_LISTCMDS) || defined(PROTO) 4762 /* 4763 * Open a window for a number of buffers. 4764 */ 4765 void 4766 ex_buffer_all(eap) 4767 exarg_T *eap; 4768 { 4769 buf_T *buf; 4770 win_T *wp, *wpnext; 4771 int split_ret = OK; 4772 int p_ea_save; 4773 int open_wins = 0; 4774 int r; 4775 int count; /* Maximum number of windows to open. */ 4776 int all; /* When TRUE also load inactive buffers. */ 4777 #ifdef FEAT_WINDOWS 4778 int had_tab = cmdmod.tab; 4779 tabpage_T *tpnext; 4780 #endif 4781 4782 if (eap->addr_count == 0) /* make as many windows as possible */ 4783 count = 9999; 4784 else 4785 count = eap->line2; /* make as many windows as specified */ 4786 if (eap->cmdidx == CMD_unhide || eap->cmdidx == CMD_sunhide) 4787 all = FALSE; 4788 else 4789 all = TRUE; 4790 4791 setpcmark(); 4792 4793 #ifdef FEAT_GUI 4794 need_mouse_correct = TRUE; 4795 #endif 4796 4797 /* 4798 * Close superfluous windows (two windows for the same buffer). 4799 * Also close windows that are not full-width. 4800 */ 4801 #ifdef FEAT_WINDOWS 4802 if (had_tab > 0) 4803 goto_tabpage_tp(first_tabpage, TRUE); 4804 for (;;) 4805 { 4806 #endif 4807 tpnext = curtab->tp_next; 4808 for (wp = firstwin; wp != NULL; wp = wpnext) 4809 { 4810 wpnext = wp->w_next; 4811 if ((wp->w_buffer->b_nwindows > 1 4812 #ifdef FEAT_VERTSPLIT 4813 || ((cmdmod.split & WSP_VERT) 4814 ? wp->w_height + wp->w_status_height < Rows - p_ch 4815 - tabline_height() 4816 : wp->w_width != Columns) 4817 #endif 4818 #ifdef FEAT_WINDOWS 4819 || (had_tab > 0 && wp != firstwin) 4820 #endif 4821 ) && firstwin != lastwin 4822 #ifdef FEAT_AUTOCMD 4823 && !(wp->w_closing || wp->w_buffer->b_closing) 4824 #endif 4825 ) 4826 { 4827 win_close(wp, FALSE); 4828 #ifdef FEAT_AUTOCMD 4829 wpnext = firstwin; /* just in case an autocommand does 4830 something strange with windows */ 4831 tpnext = first_tabpage; /* start all over...*/ 4832 open_wins = 0; 4833 #endif 4834 } 4835 else 4836 ++open_wins; 4837 } 4838 4839 #ifdef FEAT_WINDOWS 4840 /* Without the ":tab" modifier only do the current tab page. */ 4841 if (had_tab == 0 || tpnext == NULL) 4842 break; 4843 goto_tabpage_tp(tpnext, TRUE); 4844 } 4845 #endif 4846 4847 /* 4848 * Go through the buffer list. When a buffer doesn't have a window yet, 4849 * open one. Otherwise move the window to the right position. 4850 * Watch out for autocommands that delete buffers or windows! 4851 */ 4852 #ifdef FEAT_AUTOCMD 4853 /* Don't execute Win/Buf Enter/Leave autocommands here. */ 4854 ++autocmd_no_enter; 4855 #endif 4856 win_enter(lastwin, FALSE); 4857 #ifdef FEAT_AUTOCMD 4858 ++autocmd_no_leave; 4859 #endif 4860 for (buf = firstbuf; buf != NULL && open_wins < count; buf = buf->b_next) 4861 { 4862 /* Check if this buffer needs a window */ 4863 if ((!all && buf->b_ml.ml_mfp == NULL) || !buf->b_p_bl) 4864 continue; 4865 4866 #ifdef FEAT_WINDOWS 4867 if (had_tab != 0) 4868 { 4869 /* With the ":tab" modifier don't move the window. */ 4870 if (buf->b_nwindows > 0) 4871 wp = lastwin; /* buffer has a window, skip it */ 4872 else 4873 wp = NULL; 4874 } 4875 else 4876 #endif 4877 { 4878 /* Check if this buffer already has a window */ 4879 for (wp = firstwin; wp != NULL; wp = wp->w_next) 4880 if (wp->w_buffer == buf) 4881 break; 4882 /* If the buffer already has a window, move it */ 4883 if (wp != NULL) 4884 win_move_after(wp, curwin); 4885 } 4886 4887 if (wp == NULL && split_ret == OK) 4888 { 4889 /* Split the window and put the buffer in it */ 4890 p_ea_save = p_ea; 4891 p_ea = TRUE; /* use space from all windows */ 4892 split_ret = win_split(0, WSP_ROOM | WSP_BELOW); 4893 ++open_wins; 4894 p_ea = p_ea_save; 4895 if (split_ret == FAIL) 4896 continue; 4897 4898 /* Open the buffer in this window. */ 4899 #if defined(HAS_SWAP_EXISTS_ACTION) 4900 swap_exists_action = SEA_DIALOG; 4901 #endif 4902 set_curbuf(buf, DOBUF_GOTO); 4903 #ifdef FEAT_AUTOCMD 4904 if (!buf_valid(buf)) /* autocommands deleted the buffer!!! */ 4905 { 4906 #if defined(HAS_SWAP_EXISTS_ACTION) 4907 swap_exists_action = SEA_NONE; 4908 # endif 4909 break; 4910 } 4911 #endif 4912 #if defined(HAS_SWAP_EXISTS_ACTION) 4913 if (swap_exists_action == SEA_QUIT) 4914 { 4915 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 4916 cleanup_T cs; 4917 4918 /* Reset the error/interrupt/exception state here so that 4919 * aborting() returns FALSE when closing a window. */ 4920 enter_cleanup(&cs); 4921 # endif 4922 4923 /* User selected Quit at ATTENTION prompt; close this window. */ 4924 win_close(curwin, TRUE); 4925 --open_wins; 4926 swap_exists_action = SEA_NONE; 4927 swap_exists_did_quit = TRUE; 4928 4929 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) 4930 /* Restore the error/interrupt/exception state if not 4931 * discarded by a new aborting error, interrupt, or uncaught 4932 * exception. */ 4933 leave_cleanup(&cs); 4934 # endif 4935 } 4936 else 4937 handle_swap_exists(NULL); 4938 #endif 4939 } 4940 4941 ui_breakcheck(); 4942 if (got_int) 4943 { 4944 (void)vgetc(); /* only break the file loading, not the rest */ 4945 break; 4946 } 4947 #ifdef FEAT_EVAL 4948 /* Autocommands deleted the buffer or aborted script processing!!! */ 4949 if (aborting()) 4950 break; 4951 #endif 4952 #ifdef FEAT_WINDOWS 4953 /* When ":tab" was used open a new tab for a new window repeatedly. */ 4954 if (had_tab > 0 && tabpage_index(NULL) <= p_tpm) 4955 cmdmod.tab = 9999; 4956 #endif 4957 } 4958 #ifdef FEAT_AUTOCMD 4959 --autocmd_no_enter; 4960 #endif 4961 win_enter(firstwin, FALSE); /* back to first window */ 4962 #ifdef FEAT_AUTOCMD 4963 --autocmd_no_leave; 4964 #endif 4965 4966 /* 4967 * Close superfluous windows. 4968 */ 4969 for (wp = lastwin; open_wins > count; ) 4970 { 4971 r = (P_HID(wp->w_buffer) || !bufIsChanged(wp->w_buffer) 4972 || autowrite(wp->w_buffer, FALSE) == OK); 4973 #ifdef FEAT_AUTOCMD 4974 if (!win_valid(wp)) 4975 { 4976 /* BufWrite Autocommands made the window invalid, start over */ 4977 wp = lastwin; 4978 } 4979 else 4980 #endif 4981 if (r) 4982 { 4983 win_close(wp, !P_HID(wp->w_buffer)); 4984 --open_wins; 4985 wp = lastwin; 4986 } 4987 else 4988 { 4989 wp = wp->w_prev; 4990 if (wp == NULL) 4991 break; 4992 } 4993 } 4994 } 4995 # endif /* FEAT_LISTCMDS */ 4996 4997 #endif /* FEAT_WINDOWS */ 4998 4999 static int chk_modeline __ARGS((linenr_T, int)); 5000 5001 /* 5002 * do_modelines() - process mode lines for the current file 5003 * 5004 * "flags" can be: 5005 * OPT_WINONLY only set options local to window 5006 * OPT_NOWIN don't set options local to window 5007 * 5008 * Returns immediately if the "ml" option isn't set. 5009 */ 5010 void 5011 do_modelines(flags) 5012 int flags; 5013 { 5014 linenr_T lnum; 5015 int nmlines; 5016 static int entered = 0; 5017 5018 if (!curbuf->b_p_ml || (nmlines = (int)p_mls) == 0) 5019 return; 5020 5021 /* Disallow recursive entry here. Can happen when executing a modeline 5022 * triggers an autocommand, which reloads modelines with a ":do". */ 5023 if (entered) 5024 return; 5025 5026 ++entered; 5027 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count && lnum <= nmlines; 5028 ++lnum) 5029 if (chk_modeline(lnum, flags) == FAIL) 5030 nmlines = 0; 5031 5032 for (lnum = curbuf->b_ml.ml_line_count; lnum > 0 && lnum > nmlines 5033 && lnum > curbuf->b_ml.ml_line_count - nmlines; --lnum) 5034 if (chk_modeline(lnum, flags) == FAIL) 5035 nmlines = 0; 5036 --entered; 5037 } 5038 5039 #include "version.h" /* for version number */ 5040 5041 /* 5042 * chk_modeline() - check a single line for a mode string 5043 * Return FAIL if an error encountered. 5044 */ 5045 static int 5046 chk_modeline(lnum, flags) 5047 linenr_T lnum; 5048 int flags; /* Same as for do_modelines(). */ 5049 { 5050 char_u *s; 5051 char_u *e; 5052 char_u *linecopy; /* local copy of any modeline found */ 5053 int prev; 5054 int vers; 5055 int end; 5056 int retval = OK; 5057 char_u *save_sourcing_name; 5058 linenr_T save_sourcing_lnum; 5059 #ifdef FEAT_EVAL 5060 scid_T save_SID; 5061 #endif 5062 5063 prev = -1; 5064 for (s = ml_get(lnum); *s != NUL; ++s) 5065 { 5066 if (prev == -1 || vim_isspace(prev)) 5067 { 5068 if ((prev != -1 && STRNCMP(s, "ex:", (size_t)3) == 0) 5069 || STRNCMP(s, "vi:", (size_t)3) == 0) 5070 break; 5071 if (STRNCMP(s, "vim", 3) == 0) 5072 { 5073 if (s[3] == '<' || s[3] == '=' || s[3] == '>') 5074 e = s + 4; 5075 else 5076 e = s + 3; 5077 vers = getdigits(&e); 5078 if (*e == ':' 5079 && (s[3] == ':' 5080 || (VIM_VERSION_100 >= vers && isdigit(s[3])) 5081 || (VIM_VERSION_100 < vers && s[3] == '<') 5082 || (VIM_VERSION_100 > vers && s[3] == '>') 5083 || (VIM_VERSION_100 == vers && s[3] == '='))) 5084 break; 5085 } 5086 } 5087 prev = *s; 5088 } 5089 5090 if (*s) 5091 { 5092 do /* skip over "ex:", "vi:" or "vim:" */ 5093 ++s; 5094 while (s[-1] != ':'); 5095 5096 s = linecopy = vim_strsave(s); /* copy the line, it will change */ 5097 if (linecopy == NULL) 5098 return FAIL; 5099 5100 save_sourcing_lnum = sourcing_lnum; 5101 save_sourcing_name = sourcing_name; 5102 sourcing_lnum = lnum; /* prepare for emsg() */ 5103 sourcing_name = (char_u *)"modelines"; 5104 5105 end = FALSE; 5106 while (end == FALSE) 5107 { 5108 s = skipwhite(s); 5109 if (*s == NUL) 5110 break; 5111 5112 /* 5113 * Find end of set command: ':' or end of line. 5114 * Skip over "\:", replacing it with ":". 5115 */ 5116 for (e = s; *e != ':' && *e != NUL; ++e) 5117 if (e[0] == '\\' && e[1] == ':') 5118 STRMOVE(e, e + 1); 5119 if (*e == NUL) 5120 end = TRUE; 5121 5122 /* 5123 * If there is a "set" command, require a terminating ':' and 5124 * ignore the stuff after the ':'. 5125 * "vi:set opt opt opt: foo" -- foo not interpreted 5126 * "vi:opt opt opt: foo" -- foo interpreted 5127 * Accept "se" for compatibility with Elvis. 5128 */ 5129 if (STRNCMP(s, "set ", (size_t)4) == 0 5130 || STRNCMP(s, "se ", (size_t)3) == 0) 5131 { 5132 if (*e != ':') /* no terminating ':'? */ 5133 break; 5134 end = TRUE; 5135 s = vim_strchr(s, ' ') + 1; 5136 } 5137 *e = NUL; /* truncate the set command */ 5138 5139 if (*s != NUL) /* skip over an empty "::" */ 5140 { 5141 #ifdef FEAT_EVAL 5142 save_SID = current_SID; 5143 current_SID = SID_MODELINE; 5144 #endif 5145 retval = do_set(s, OPT_MODELINE | OPT_LOCAL | flags); 5146 #ifdef FEAT_EVAL 5147 current_SID = save_SID; 5148 #endif 5149 if (retval == FAIL) /* stop if error found */ 5150 break; 5151 } 5152 s = e + 1; /* advance to next part */ 5153 } 5154 5155 sourcing_lnum = save_sourcing_lnum; 5156 sourcing_name = save_sourcing_name; 5157 5158 vim_free(linecopy); 5159 } 5160 return retval; 5161 } 5162 5163 #if defined(FEAT_VIMINFO) || defined(PROTO) 5164 int 5165 read_viminfo_bufferlist(virp, writing) 5166 vir_T *virp; 5167 int writing; 5168 { 5169 char_u *tab; 5170 linenr_T lnum; 5171 colnr_T col; 5172 buf_T *buf; 5173 char_u *sfname; 5174 char_u *xline; 5175 5176 /* Handle long line and escaped characters. */ 5177 xline = viminfo_readstring(virp, 1, FALSE); 5178 5179 /* don't read in if there are files on the command-line or if writing: */ 5180 if (xline != NULL && !writing && ARGCOUNT == 0 5181 && find_viminfo_parameter('%') != NULL) 5182 { 5183 /* Format is: <fname> Tab <lnum> Tab <col>. 5184 * Watch out for a Tab in the file name, work from the end. */ 5185 lnum = 0; 5186 col = 0; 5187 tab = vim_strrchr(xline, '\t'); 5188 if (tab != NULL) 5189 { 5190 *tab++ = '\0'; 5191 col = (colnr_T)atoi((char *)tab); 5192 tab = vim_strrchr(xline, '\t'); 5193 if (tab != NULL) 5194 { 5195 *tab++ = '\0'; 5196 lnum = atol((char *)tab); 5197 } 5198 } 5199 5200 /* Expand "~/" in the file name at "line + 1" to a full path. 5201 * Then try shortening it by comparing with the current directory */ 5202 expand_env(xline, NameBuff, MAXPATHL); 5203 sfname = shorten_fname1(NameBuff); 5204 5205 buf = buflist_new(NameBuff, sfname, (linenr_T)0, BLN_LISTED); 5206 if (buf != NULL) /* just in case... */ 5207 { 5208 buf->b_last_cursor.lnum = lnum; 5209 buf->b_last_cursor.col = col; 5210 buflist_setfpos(buf, curwin, lnum, col, FALSE); 5211 } 5212 } 5213 vim_free(xline); 5214 5215 return viminfo_readline(virp); 5216 } 5217 5218 void 5219 write_viminfo_bufferlist(fp) 5220 FILE *fp; 5221 { 5222 buf_T *buf; 5223 #ifdef FEAT_WINDOWS 5224 win_T *win; 5225 tabpage_T *tp; 5226 #endif 5227 char_u *line; 5228 int max_buffers; 5229 5230 if (find_viminfo_parameter('%') == NULL) 5231 return; 5232 5233 /* Without a number -1 is returned: do all buffers. */ 5234 max_buffers = get_viminfo_parameter('%'); 5235 5236 /* Allocate room for the file name, lnum and col. */ 5237 #define LINE_BUF_LEN (MAXPATHL + 40) 5238 line = alloc(LINE_BUF_LEN); 5239 if (line == NULL) 5240 return; 5241 5242 #ifdef FEAT_WINDOWS 5243 FOR_ALL_TAB_WINDOWS(tp, win) 5244 set_last_cursor(win); 5245 #else 5246 set_last_cursor(curwin); 5247 #endif 5248 5249 fputs(_("\n# Buffer list:\n"), fp); 5250 for (buf = firstbuf; buf != NULL ; buf = buf->b_next) 5251 { 5252 if (buf->b_fname == NULL 5253 || !buf->b_p_bl 5254 #ifdef FEAT_QUICKFIX 5255 || bt_quickfix(buf) 5256 #endif 5257 || removable(buf->b_ffname)) 5258 continue; 5259 5260 if (max_buffers-- == 0) 5261 break; 5262 putc('%', fp); 5263 home_replace(NULL, buf->b_ffname, line, MAXPATHL, TRUE); 5264 vim_snprintf_add((char *)line, LINE_BUF_LEN, "\t%ld\t%d", 5265 (long)buf->b_last_cursor.lnum, 5266 buf->b_last_cursor.col); 5267 viminfo_writestring(fp, line); 5268 } 5269 vim_free(line); 5270 } 5271 #endif 5272 5273 5274 /* 5275 * Return special buffer name. 5276 * Returns NULL when the buffer has a normal file name. 5277 */ 5278 char_u * 5279 buf_spname(buf) 5280 buf_T *buf; 5281 { 5282 #if defined(FEAT_QUICKFIX) && defined(FEAT_WINDOWS) 5283 if (bt_quickfix(buf)) 5284 { 5285 win_T *win = NULL; 5286 tabpage_T *tp; 5287 5288 /* 5289 * For location list window, w_llist_ref points to the location list. 5290 * For quickfix window, w_llist_ref is NULL. 5291 */ 5292 FOR_ALL_TAB_WINDOWS(tp, win) 5293 if (win->w_buffer == buf) 5294 goto win_found; 5295 win_found: 5296 if (win != NULL && win->w_llist_ref != NULL) 5297 return (char_u *)_(msg_loclist); 5298 else 5299 return (char_u *)_(msg_qflist); 5300 } 5301 #endif 5302 #ifdef FEAT_QUICKFIX 5303 /* There is no _file_ when 'buftype' is "nofile", b_sfname 5304 * contains the name as specified by the user */ 5305 if (bt_nofile(buf)) 5306 { 5307 if (buf->b_sfname != NULL) 5308 return buf->b_sfname; 5309 return (char_u *)_("[Scratch]"); 5310 } 5311 #endif 5312 if (buf->b_fname == NULL) 5313 return (char_u *)_("[No Name]"); 5314 return NULL; 5315 } 5316 5317 5318 #if defined(FEAT_SIGNS) || defined(PROTO) 5319 /* 5320 * Insert the sign into the signlist. 5321 */ 5322 static void 5323 insert_sign(buf, prev, next, id, lnum, typenr) 5324 buf_T *buf; /* buffer to store sign in */ 5325 signlist_T *prev; /* previous sign entry */ 5326 signlist_T *next; /* next sign entry */ 5327 int id; /* sign ID */ 5328 linenr_T lnum; /* line number which gets the mark */ 5329 int typenr; /* typenr of sign we are adding */ 5330 { 5331 signlist_T *newsign; 5332 5333 newsign = (signlist_T *)lalloc((long_u)sizeof(signlist_T), FALSE); 5334 if (newsign != NULL) 5335 { 5336 newsign->id = id; 5337 newsign->lnum = lnum; 5338 newsign->typenr = typenr; 5339 newsign->next = next; 5340 #ifdef FEAT_NETBEANS_INTG 5341 newsign->prev = prev; 5342 if (next != NULL) 5343 next->prev = newsign; 5344 #endif 5345 5346 if (prev == NULL) 5347 { 5348 /* When adding first sign need to redraw the windows to create the 5349 * column for signs. */ 5350 if (buf->b_signlist == NULL) 5351 { 5352 redraw_buf_later(buf, NOT_VALID); 5353 changed_cline_bef_curs(); 5354 } 5355 5356 /* first sign in signlist */ 5357 buf->b_signlist = newsign; 5358 } 5359 else 5360 prev->next = newsign; 5361 } 5362 } 5363 5364 /* 5365 * Add the sign into the signlist. Find the right spot to do it though. 5366 */ 5367 void 5368 buf_addsign(buf, id, lnum, typenr) 5369 buf_T *buf; /* buffer to store sign in */ 5370 int id; /* sign ID */ 5371 linenr_T lnum; /* line number which gets the mark */ 5372 int typenr; /* typenr of sign we are adding */ 5373 { 5374 signlist_T *sign; /* a sign in the signlist */ 5375 signlist_T *prev; /* the previous sign */ 5376 5377 prev = NULL; 5378 for (sign = buf->b_signlist; sign != NULL; sign = sign->next) 5379 { 5380 if (lnum == sign->lnum && id == sign->id) 5381 { 5382 sign->typenr = typenr; 5383 return; 5384 } 5385 else if ( 5386 #ifndef FEAT_NETBEANS_INTG /* keep signs sorted by lnum */ 5387 id < 0 && 5388 #endif 5389 lnum < sign->lnum) 5390 { 5391 #ifdef FEAT_NETBEANS_INTG /* insert new sign at head of list for this lnum */ 5392 /* XXX - GRP: Is this because of sign slide problem? Or is it 5393 * really needed? Or is it because we allow multiple signs per 5394 * line? If so, should I add that feature to FEAT_SIGNS? 5395 */ 5396 while (prev != NULL && prev->lnum == lnum) 5397 prev = prev->prev; 5398 if (prev == NULL) 5399 sign = buf->b_signlist; 5400 else 5401 sign = prev->next; 5402 #endif 5403 insert_sign(buf, prev, sign, id, lnum, typenr); 5404 return; 5405 } 5406 prev = sign; 5407 } 5408 #ifdef FEAT_NETBEANS_INTG /* insert new sign at head of list for this lnum */ 5409 /* XXX - GRP: See previous comment */ 5410 while (prev != NULL && prev->lnum == lnum) 5411 prev = prev->prev; 5412 if (prev == NULL) 5413 sign = buf->b_signlist; 5414 else 5415 sign = prev->next; 5416 #endif 5417 insert_sign(buf, prev, sign, id, lnum, typenr); 5418 5419 return; 5420 } 5421 5422 linenr_T 5423 buf_change_sign_type(buf, markId, typenr) 5424 buf_T *buf; /* buffer to store sign in */ 5425 int markId; /* sign ID */ 5426 int typenr; /* typenr of sign we are adding */ 5427 { 5428 signlist_T *sign; /* a sign in the signlist */ 5429 5430 for (sign = buf->b_signlist; sign != NULL; sign = sign->next) 5431 { 5432 if (sign->id == markId) 5433 { 5434 sign->typenr = typenr; 5435 return sign->lnum; 5436 } 5437 } 5438 5439 return (linenr_T)0; 5440 } 5441 5442 int 5443 buf_getsigntype(buf, lnum, type) 5444 buf_T *buf; 5445 linenr_T lnum; 5446 int type; /* SIGN_ICON, SIGN_TEXT, SIGN_ANY, SIGN_LINEHL */ 5447 { 5448 signlist_T *sign; /* a sign in a b_signlist */ 5449 5450 for (sign = buf->b_signlist; sign != NULL; sign = sign->next) 5451 if (sign->lnum == lnum 5452 && (type == SIGN_ANY 5453 # ifdef FEAT_SIGN_ICONS 5454 || (type == SIGN_ICON 5455 && sign_get_image(sign->typenr) != NULL) 5456 # endif 5457 || (type == SIGN_TEXT 5458 && sign_get_text(sign->typenr) != NULL) 5459 || (type == SIGN_LINEHL 5460 && sign_get_attr(sign->typenr, TRUE) != 0))) 5461 return sign->typenr; 5462 return 0; 5463 } 5464 5465 5466 linenr_T 5467 buf_delsign(buf, id) 5468 buf_T *buf; /* buffer sign is stored in */ 5469 int id; /* sign id */ 5470 { 5471 signlist_T **lastp; /* pointer to pointer to current sign */ 5472 signlist_T *sign; /* a sign in a b_signlist */ 5473 signlist_T *next; /* the next sign in a b_signlist */ 5474 linenr_T lnum; /* line number whose sign was deleted */ 5475 5476 lastp = &buf->b_signlist; 5477 lnum = 0; 5478 for (sign = buf->b_signlist; sign != NULL; sign = next) 5479 { 5480 next = sign->next; 5481 if (sign->id == id) 5482 { 5483 *lastp = next; 5484 #ifdef FEAT_NETBEANS_INTG 5485 if (next != NULL) 5486 next->prev = sign->prev; 5487 #endif 5488 lnum = sign->lnum; 5489 vim_free(sign); 5490 break; 5491 } 5492 else 5493 lastp = &sign->next; 5494 } 5495 5496 /* When deleted the last sign need to redraw the windows to remove the 5497 * sign column. */ 5498 if (buf->b_signlist == NULL) 5499 { 5500 redraw_buf_later(buf, NOT_VALID); 5501 changed_cline_bef_curs(); 5502 } 5503 5504 return lnum; 5505 } 5506 5507 5508 /* 5509 * Find the line number of the sign with the requested id. If the sign does 5510 * not exist, return 0 as the line number. This will still let the correct file 5511 * get loaded. 5512 */ 5513 int 5514 buf_findsign(buf, id) 5515 buf_T *buf; /* buffer to store sign in */ 5516 int id; /* sign ID */ 5517 { 5518 signlist_T *sign; /* a sign in the signlist */ 5519 5520 for (sign = buf->b_signlist; sign != NULL; sign = sign->next) 5521 if (sign->id == id) 5522 return sign->lnum; 5523 5524 return 0; 5525 } 5526 5527 int 5528 buf_findsign_id(buf, lnum) 5529 buf_T *buf; /* buffer whose sign we are searching for */ 5530 linenr_T lnum; /* line number of sign */ 5531 { 5532 signlist_T *sign; /* a sign in the signlist */ 5533 5534 for (sign = buf->b_signlist; sign != NULL; sign = sign->next) 5535 if (sign->lnum == lnum) 5536 return sign->id; 5537 5538 return 0; 5539 } 5540 5541 5542 # if defined(FEAT_NETBEANS_INTG) || defined(PROTO) 5543 /* see if a given type of sign exists on a specific line */ 5544 int 5545 buf_findsigntype_id(buf, lnum, typenr) 5546 buf_T *buf; /* buffer whose sign we are searching for */ 5547 linenr_T lnum; /* line number of sign */ 5548 int typenr; /* sign type number */ 5549 { 5550 signlist_T *sign; /* a sign in the signlist */ 5551 5552 for (sign = buf->b_signlist; sign != NULL; sign = sign->next) 5553 if (sign->lnum == lnum && sign->typenr == typenr) 5554 return sign->id; 5555 5556 return 0; 5557 } 5558 5559 5560 # if defined(FEAT_SIGN_ICONS) || defined(PROTO) 5561 /* return the number of icons on the given line */ 5562 int 5563 buf_signcount(buf, lnum) 5564 buf_T *buf; 5565 linenr_T lnum; 5566 { 5567 signlist_T *sign; /* a sign in the signlist */ 5568 int count = 0; 5569 5570 for (sign = buf->b_signlist; sign != NULL; sign = sign->next) 5571 if (sign->lnum == lnum) 5572 if (sign_get_image(sign->typenr) != NULL) 5573 count++; 5574 5575 return count; 5576 } 5577 # endif /* FEAT_SIGN_ICONS */ 5578 # endif /* FEAT_NETBEANS_INTG */ 5579 5580 5581 /* 5582 * Delete signs in buffer "buf". 5583 */ 5584 void 5585 buf_delete_signs(buf) 5586 buf_T *buf; 5587 { 5588 signlist_T *next; 5589 5590 while (buf->b_signlist != NULL) 5591 { 5592 next = buf->b_signlist->next; 5593 vim_free(buf->b_signlist); 5594 buf->b_signlist = next; 5595 } 5596 } 5597 5598 /* 5599 * Delete all signs in all buffers. 5600 */ 5601 void 5602 buf_delete_all_signs() 5603 { 5604 buf_T *buf; /* buffer we are checking for signs */ 5605 5606 for (buf = firstbuf; buf != NULL; buf = buf->b_next) 5607 if (buf->b_signlist != NULL) 5608 { 5609 /* Need to redraw the windows to remove the sign column. */ 5610 redraw_buf_later(buf, NOT_VALID); 5611 buf_delete_signs(buf); 5612 } 5613 } 5614 5615 /* 5616 * List placed signs for "rbuf". If "rbuf" is NULL do it for all buffers. 5617 */ 5618 void 5619 sign_list_placed(rbuf) 5620 buf_T *rbuf; 5621 { 5622 buf_T *buf; 5623 signlist_T *p; 5624 char lbuf[BUFSIZ]; 5625 5626 MSG_PUTS_TITLE(_("\n--- Signs ---")); 5627 msg_putchar('\n'); 5628 if (rbuf == NULL) 5629 buf = firstbuf; 5630 else 5631 buf = rbuf; 5632 while (buf != NULL && !got_int) 5633 { 5634 if (buf->b_signlist != NULL) 5635 { 5636 vim_snprintf(lbuf, BUFSIZ, _("Signs for %s:"), buf->b_fname); 5637 MSG_PUTS_ATTR(lbuf, hl_attr(HLF_D)); 5638 msg_putchar('\n'); 5639 } 5640 for (p = buf->b_signlist; p != NULL && !got_int; p = p->next) 5641 { 5642 vim_snprintf(lbuf, BUFSIZ, _(" line=%ld id=%d name=%s"), 5643 (long)p->lnum, p->id, sign_typenr2name(p->typenr)); 5644 MSG_PUTS(lbuf); 5645 msg_putchar('\n'); 5646 } 5647 if (rbuf != NULL) 5648 break; 5649 buf = buf->b_next; 5650 } 5651 } 5652 5653 /* 5654 * Adjust a placed sign for inserted/deleted lines. 5655 */ 5656 void 5657 sign_mark_adjust(line1, line2, amount, amount_after) 5658 linenr_T line1; 5659 linenr_T line2; 5660 long amount; 5661 long amount_after; 5662 { 5663 signlist_T *sign; /* a sign in a b_signlist */ 5664 5665 for (sign = curbuf->b_signlist; sign != NULL; sign = sign->next) 5666 { 5667 if (sign->lnum >= line1 && sign->lnum <= line2) 5668 { 5669 if (amount == MAXLNUM) 5670 sign->lnum = line1; 5671 else 5672 sign->lnum += amount; 5673 } 5674 else if (sign->lnum > line2) 5675 sign->lnum += amount_after; 5676 } 5677 } 5678 #endif /* FEAT_SIGNS */ 5679 5680 /* 5681 * Set 'buflisted' for curbuf to "on" and trigger autocommands if it changed. 5682 */ 5683 void 5684 set_buflisted(on) 5685 int on; 5686 { 5687 if (on != curbuf->b_p_bl) 5688 { 5689 curbuf->b_p_bl = on; 5690 #ifdef FEAT_AUTOCMD 5691 if (on) 5692 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, curbuf); 5693 else 5694 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 5695 #endif 5696 } 5697 } 5698 5699 /* 5700 * Read the file for "buf" again and check if the contents changed. 5701 * Return TRUE if it changed or this could not be checked. 5702 */ 5703 int 5704 buf_contents_changed(buf) 5705 buf_T *buf; 5706 { 5707 buf_T *newbuf; 5708 int differ = TRUE; 5709 linenr_T lnum; 5710 aco_save_T aco; 5711 exarg_T ea; 5712 5713 /* Allocate a buffer without putting it in the buffer list. */ 5714 newbuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY); 5715 if (newbuf == NULL) 5716 return TRUE; 5717 5718 /* Force the 'fileencoding' and 'fileformat' to be equal. */ 5719 if (prep_exarg(&ea, buf) == FAIL) 5720 { 5721 wipe_buffer(newbuf, FALSE); 5722 return TRUE; 5723 } 5724 5725 /* set curwin/curbuf to buf and save a few things */ 5726 aucmd_prepbuf(&aco, newbuf); 5727 5728 if (ml_open(curbuf) == OK 5729 && readfile(buf->b_ffname, buf->b_fname, 5730 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, 5731 &ea, READ_NEW | READ_DUMMY) == OK) 5732 { 5733 /* compare the two files line by line */ 5734 if (buf->b_ml.ml_line_count == curbuf->b_ml.ml_line_count) 5735 { 5736 differ = FALSE; 5737 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) 5738 if (STRCMP(ml_get_buf(buf, lnum, FALSE), ml_get(lnum)) != 0) 5739 { 5740 differ = TRUE; 5741 break; 5742 } 5743 } 5744 } 5745 vim_free(ea.cmd); 5746 5747 /* restore curwin/curbuf and a few other things */ 5748 aucmd_restbuf(&aco); 5749 5750 if (curbuf != newbuf) /* safety check */ 5751 wipe_buffer(newbuf, FALSE); 5752 5753 return differ; 5754 } 5755 5756 /* 5757 * Wipe out a buffer and decrement the last buffer number if it was used for 5758 * this buffer. Call this to wipe out a temp buffer that does not contain any 5759 * marks. 5760 */ 5761 void 5762 wipe_buffer(buf, aucmd) 5763 buf_T *buf; 5764 int aucmd UNUSED; /* When TRUE trigger autocommands. */ 5765 { 5766 if (buf->b_fnum == top_file_num - 1) 5767 --top_file_num; 5768 5769 #ifdef FEAT_AUTOCMD 5770 if (!aucmd) /* Don't trigger BufDelete autocommands here. */ 5771 block_autocmds(); 5772 #endif 5773 close_buffer(NULL, buf, DOBUF_WIPE, FALSE); 5774 #ifdef FEAT_AUTOCMD 5775 if (!aucmd) 5776 unblock_autocmds(); 5777 #endif 5778 } 5779