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