1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * 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 static char_u *buflist_match(regmatch_T *rmp, buf_T *buf, int ignore_case); 31 static char_u *fname_match(regmatch_T *rmp, char_u *name, int ignore_case); 32 #ifdef UNIX 33 static buf_T *buflist_findname_stat(char_u *ffname, stat_T *st); 34 static int otherfile_buf(buf_T *buf, char_u *ffname, stat_T *stp); 35 static int buf_same_ino(buf_T *buf, stat_T *stp); 36 #else 37 static int otherfile_buf(buf_T *buf, char_u *ffname); 38 #endif 39 #ifdef FEAT_TITLE 40 static int value_changed(char_u *str, char_u **last); 41 #endif 42 static int append_arg_number(win_T *wp, char_u *buf, int buflen, int add_file); 43 static void free_buffer(buf_T *); 44 static void free_buffer_stuff(buf_T *buf, int free_options); 45 static void clear_wininfo(buf_T *buf); 46 47 #ifdef UNIX 48 # define dev_T dev_t 49 #else 50 # define dev_T unsigned 51 #endif 52 53 #if defined(FEAT_QUICKFIX) 54 static char *msg_loclist = N_("[Location List]"); 55 static char *msg_qflist = N_("[Quickfix List]"); 56 #endif 57 static char *e_auabort = N_("E855: Autocommands caused command to abort"); 58 59 /* Number of times free_buffer() was called. */ 60 static int buf_free_count = 0; 61 62 /* 63 * Read data from buffer for retrying. 64 */ 65 static int 66 read_buffer( 67 int read_stdin, /* read file from stdin, otherwise fifo */ 68 exarg_T *eap, /* for forced 'ff' and 'fenc' or NULL */ 69 int flags) /* extra flags for readfile() */ 70 { 71 int retval = OK; 72 linenr_T line_count; 73 74 /* 75 * Read from the buffer which the text is already filled in and append at 76 * the end. This makes it possible to retry when 'fileformat' or 77 * 'fileencoding' was guessed wrong. 78 */ 79 line_count = curbuf->b_ml.ml_line_count; 80 retval = readfile( 81 read_stdin ? NULL : curbuf->b_ffname, 82 read_stdin ? NULL : curbuf->b_fname, 83 (linenr_T)line_count, (linenr_T)0, (linenr_T)MAXLNUM, eap, 84 flags | READ_BUFFER); 85 if (retval == OK) 86 { 87 /* Delete the binary lines. */ 88 while (--line_count >= 0) 89 ml_delete((linenr_T)1, FALSE); 90 } 91 else 92 { 93 /* Delete the converted lines. */ 94 while (curbuf->b_ml.ml_line_count > line_count) 95 ml_delete(line_count, FALSE); 96 } 97 /* Put the cursor on the first line. */ 98 curwin->w_cursor.lnum = 1; 99 curwin->w_cursor.col = 0; 100 101 if (read_stdin) 102 { 103 /* Set or reset 'modified' before executing autocommands, so that 104 * it can be changed there. */ 105 if (!readonlymode && !BUFEMPTY()) 106 changed(); 107 else if (retval == OK) 108 unchanged(curbuf, FALSE, TRUE); 109 110 if (retval == OK) 111 { 112 #ifdef FEAT_EVAL 113 apply_autocmds_retval(EVENT_STDINREADPOST, NULL, NULL, FALSE, 114 curbuf, &retval); 115 #else 116 apply_autocmds(EVENT_STDINREADPOST, NULL, NULL, FALSE, curbuf); 117 #endif 118 } 119 } 120 return retval; 121 } 122 123 /* 124 * Ensure buffer "buf" is loaded. Does not trigger the swap-exists action. 125 */ 126 void 127 buffer_ensure_loaded(buf_T *buf) 128 { 129 if (buf->b_ml.ml_mfp == NULL) 130 { 131 aco_save_T aco; 132 133 aucmd_prepbuf(&aco, buf); 134 swap_exists_action = SEA_NONE; 135 open_buffer(FALSE, NULL, 0); 136 aucmd_restbuf(&aco); 137 } 138 } 139 140 /* 141 * Open current buffer, that is: open the memfile and read the file into 142 * memory. 143 * Return FAIL for failure, OK otherwise. 144 */ 145 int 146 open_buffer( 147 int read_stdin, /* read file from stdin */ 148 exarg_T *eap, /* for forced 'ff' and 'fenc' or NULL */ 149 int flags) /* extra flags for readfile() */ 150 { 151 int retval = OK; 152 bufref_T old_curbuf; 153 #ifdef FEAT_SYN_HL 154 long old_tw = curbuf->b_p_tw; 155 #endif 156 int read_fifo = FALSE; 157 158 /* 159 * The 'readonly' flag is only set when BF_NEVERLOADED is being reset. 160 * When re-entering the same buffer, it should not change, because the 161 * user may have reset the flag by hand. 162 */ 163 if (readonlymode && curbuf->b_ffname != NULL 164 && (curbuf->b_flags & BF_NEVERLOADED)) 165 curbuf->b_p_ro = TRUE; 166 167 if (ml_open(curbuf) == FAIL) 168 { 169 /* 170 * There MUST be a memfile, otherwise we can't do anything 171 * If we can't create one for the current buffer, take another buffer 172 */ 173 close_buffer(NULL, curbuf, 0, FALSE); 174 FOR_ALL_BUFFERS(curbuf) 175 if (curbuf->b_ml.ml_mfp != NULL) 176 break; 177 /* 178 * if there is no memfile at all, exit 179 * This is OK, since there are no changes to lose. 180 */ 181 if (curbuf == NULL) 182 { 183 emsg(_("E82: Cannot allocate any buffer, exiting...")); 184 getout(2); 185 } 186 emsg(_("E83: Cannot allocate buffer, using other one...")); 187 enter_buffer(curbuf); 188 #ifdef FEAT_SYN_HL 189 if (old_tw != curbuf->b_p_tw) 190 check_colorcolumn(curwin); 191 #endif 192 return FAIL; 193 } 194 195 /* The autocommands in readfile() may change the buffer, but only AFTER 196 * reading the file. */ 197 set_bufref(&old_curbuf, curbuf); 198 modified_was_set = FALSE; 199 200 /* mark cursor position as being invalid */ 201 curwin->w_valid = 0; 202 203 if (curbuf->b_ffname != NULL 204 #ifdef FEAT_NETBEANS_INTG 205 && netbeansReadFile 206 #endif 207 ) 208 { 209 int old_msg_silent = msg_silent; 210 #ifdef UNIX 211 int save_bin = curbuf->b_p_bin; 212 int perm; 213 #endif 214 #ifdef FEAT_NETBEANS_INTG 215 int oldFire = netbeansFireChanges; 216 217 netbeansFireChanges = 0; 218 #endif 219 #ifdef UNIX 220 perm = mch_getperm(curbuf->b_ffname); 221 if (perm >= 0 && (S_ISFIFO(perm) 222 || S_ISSOCK(perm) 223 # ifdef OPEN_CHR_FILES 224 || (S_ISCHR(perm) && is_dev_fd_file(curbuf->b_ffname)) 225 # endif 226 )) 227 read_fifo = TRUE; 228 if (read_fifo) 229 curbuf->b_p_bin = TRUE; 230 #endif 231 if (shortmess(SHM_FILEINFO)) 232 msg_silent = 1; 233 retval = readfile(curbuf->b_ffname, curbuf->b_fname, 234 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap, 235 flags | READ_NEW | (read_fifo ? READ_FIFO : 0)); 236 #ifdef UNIX 237 if (read_fifo) 238 { 239 curbuf->b_p_bin = save_bin; 240 if (retval == OK) 241 retval = read_buffer(FALSE, eap, flags); 242 } 243 #endif 244 msg_silent = old_msg_silent; 245 #ifdef FEAT_NETBEANS_INTG 246 netbeansFireChanges = oldFire; 247 #endif 248 /* Help buffer is filtered. */ 249 if (bt_help(curbuf)) 250 fix_help_buffer(); 251 } 252 else if (read_stdin) 253 { 254 int save_bin = curbuf->b_p_bin; 255 256 /* 257 * First read the text in binary mode into the buffer. 258 * Then read from that same buffer and append at the end. This makes 259 * it possible to retry when 'fileformat' or 'fileencoding' was 260 * guessed wrong. 261 */ 262 curbuf->b_p_bin = TRUE; 263 retval = readfile(NULL, NULL, (linenr_T)0, 264 (linenr_T)0, (linenr_T)MAXLNUM, NULL, 265 flags | (READ_NEW + READ_STDIN)); 266 curbuf->b_p_bin = save_bin; 267 if (retval == OK) 268 retval = read_buffer(TRUE, eap, flags); 269 } 270 271 /* if first time loading this buffer, init b_chartab[] */ 272 if (curbuf->b_flags & BF_NEVERLOADED) 273 { 274 (void)buf_init_chartab(curbuf, FALSE); 275 #ifdef FEAT_CINDENT 276 parse_cino(curbuf); 277 #endif 278 } 279 280 /* 281 * Set/reset the Changed flag first, autocmds may change the buffer. 282 * Apply the automatic commands, before processing the modelines. 283 * So the modelines have priority over autocommands. 284 */ 285 /* When reading stdin, the buffer contents always needs writing, so set 286 * the changed flag. Unless in readonly mode: "ls | gview -". 287 * When interrupted and 'cpoptions' contains 'i' set changed flag. */ 288 if ((got_int && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 289 || modified_was_set /* ":set modified" used in autocmd */ 290 #ifdef FEAT_EVAL 291 || (aborting() && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 292 #endif 293 ) 294 changed(); 295 else if (retval == OK && !read_stdin && !read_fifo) 296 unchanged(curbuf, FALSE, TRUE); 297 save_file_ff(curbuf); /* keep this fileformat */ 298 299 /* Set last_changedtick to avoid triggering a TextChanged autocommand right 300 * after it was added. */ 301 curbuf->b_last_changedtick = CHANGEDTICK(curbuf); 302 #ifdef FEAT_INS_EXPAND 303 curbuf->b_last_changedtick_pum = CHANGEDTICK(curbuf); 304 #endif 305 306 /* require "!" to overwrite the file, because it wasn't read completely */ 307 #ifdef FEAT_EVAL 308 if (aborting()) 309 #else 310 if (got_int) 311 #endif 312 curbuf->b_flags |= BF_READERR; 313 314 #ifdef FEAT_FOLDING 315 /* Need to update automatic folding. Do this before the autocommands, 316 * they may use the fold info. */ 317 foldUpdateAll(curwin); 318 #endif 319 320 /* need to set w_topline, unless some autocommand already did that. */ 321 if (!(curwin->w_valid & VALID_TOPLINE)) 322 { 323 curwin->w_topline = 1; 324 #ifdef FEAT_DIFF 325 curwin->w_topfill = 0; 326 #endif 327 } 328 #ifdef FEAT_EVAL 329 apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, &retval); 330 #else 331 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 332 #endif 333 334 if (retval == OK) 335 { 336 /* 337 * The autocommands may have changed the current buffer. Apply the 338 * modelines to the correct buffer, if it still exists and is loaded. 339 */ 340 if (bufref_valid(&old_curbuf) && old_curbuf.br_buf->b_ml.ml_mfp != NULL) 341 { 342 aco_save_T aco; 343 344 /* Go to the buffer that was opened. */ 345 aucmd_prepbuf(&aco, old_curbuf.br_buf); 346 do_modelines(0); 347 curbuf->b_flags &= ~(BF_CHECK_RO | BF_NEVERLOADED); 348 349 #ifdef FEAT_EVAL 350 apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf, 351 &retval); 352 #else 353 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 354 #endif 355 356 /* restore curwin/curbuf and a few other things */ 357 aucmd_restbuf(&aco); 358 } 359 } 360 361 return retval; 362 } 363 364 /* 365 * Store "buf" in "bufref" and set the free count. 366 */ 367 void 368 set_bufref(bufref_T *bufref, buf_T *buf) 369 { 370 bufref->br_buf = buf; 371 bufref->br_fnum = buf == NULL ? 0 : buf->b_fnum; 372 bufref->br_buf_free_count = buf_free_count; 373 } 374 375 /* 376 * Return TRUE if "bufref->br_buf" points to the same buffer as when 377 * set_bufref() was called and it is a valid buffer. 378 * Only goes through the buffer list if buf_free_count changed. 379 * Also checks if b_fnum is still the same, a :bwipe followed by :new might get 380 * the same allocated memory, but it's a different buffer. 381 */ 382 int 383 bufref_valid(bufref_T *bufref) 384 { 385 return bufref->br_buf_free_count == buf_free_count 386 ? TRUE : buf_valid(bufref->br_buf) 387 && bufref->br_fnum == bufref->br_buf->b_fnum; 388 } 389 390 /* 391 * Return TRUE if "buf" points to a valid buffer (in the buffer list). 392 * This can be slow if there are many buffers, prefer using bufref_valid(). 393 */ 394 int 395 buf_valid(buf_T *buf) 396 { 397 buf_T *bp; 398 399 /* Assume that we more often have a recent buffer, start with the last 400 * one. */ 401 for (bp = lastbuf; bp != NULL; bp = bp->b_prev) 402 if (bp == buf) 403 return TRUE; 404 return FALSE; 405 } 406 407 /* 408 * A hash table used to quickly lookup a buffer by its number. 409 */ 410 static hashtab_T buf_hashtab; 411 412 static void 413 buf_hashtab_add(buf_T *buf) 414 { 415 sprintf((char *)buf->b_key, "%x", buf->b_fnum); 416 if (hash_add(&buf_hashtab, buf->b_key) == FAIL) 417 emsg(_("E931: Buffer cannot be registered")); 418 } 419 420 static void 421 buf_hashtab_remove(buf_T *buf) 422 { 423 hashitem_T *hi = hash_find(&buf_hashtab, buf->b_key); 424 425 if (!HASHITEM_EMPTY(hi)) 426 hash_remove(&buf_hashtab, hi); 427 } 428 429 /* 430 * Return TRUE when buffer "buf" can be unloaded. 431 * Give an error message and return FALSE when the buffer is locked or the 432 * screen is being redrawn and the buffer is in a window. 433 */ 434 static int 435 can_unload_buffer(buf_T *buf) 436 { 437 int can_unload = !buf->b_locked; 438 439 if (can_unload && updating_screen) 440 { 441 win_T *wp; 442 443 FOR_ALL_WINDOWS(wp) 444 if (wp->w_buffer == buf) 445 { 446 can_unload = FALSE; 447 break; 448 } 449 } 450 if (!can_unload) 451 semsg(_("E937: Attempt to delete a buffer that is in use: %s"), 452 buf->b_fname); 453 return can_unload; 454 } 455 456 /* 457 * Close the link to a buffer. 458 * "action" is used when there is no longer a window for the buffer. 459 * It can be: 460 * 0 buffer becomes hidden 461 * DOBUF_UNLOAD buffer is unloaded 462 * DOBUF_DELETE buffer is unloaded and removed from buffer list 463 * DOBUF_WIPE buffer is unloaded and really deleted 464 * When doing all but the first one on the current buffer, the caller should 465 * get a new buffer very soon! 466 * 467 * The 'bufhidden' option can force freeing and deleting. 468 * 469 * When "abort_if_last" is TRUE then do not close the buffer if autocommands 470 * cause there to be only one window with this buffer. e.g. when ":quit" is 471 * supposed to close the window but autocommands close all other windows. 472 */ 473 void 474 close_buffer( 475 win_T *win, /* if not NULL, set b_last_cursor */ 476 buf_T *buf, 477 int action, 478 int abort_if_last) 479 { 480 int is_curbuf; 481 int nwindows; 482 bufref_T bufref; 483 int is_curwin = (curwin != NULL && curwin->w_buffer == buf); 484 win_T *the_curwin = curwin; 485 tabpage_T *the_curtab = curtab; 486 int unload_buf = (action != 0); 487 int del_buf = (action == DOBUF_DEL || action == DOBUF_WIPE); 488 int wipe_buf = (action == DOBUF_WIPE); 489 490 /* 491 * Force unloading or deleting when 'bufhidden' says so. 492 * The caller must take care of NOT deleting/freeing when 'bufhidden' is 493 * "hide" (otherwise we could never free or delete a buffer). 494 */ 495 if (buf->b_p_bh[0] == 'd') /* 'bufhidden' == "delete" */ 496 { 497 del_buf = TRUE; 498 unload_buf = TRUE; 499 } 500 else if (buf->b_p_bh[0] == 'w') /* 'bufhidden' == "wipe" */ 501 { 502 del_buf = TRUE; 503 unload_buf = TRUE; 504 wipe_buf = TRUE; 505 } 506 else if (buf->b_p_bh[0] == 'u') /* 'bufhidden' == "unload" */ 507 unload_buf = TRUE; 508 509 #ifdef FEAT_TERMINAL 510 if (bt_terminal(buf) && (buf->b_nwindows == 1 || del_buf)) 511 { 512 if (term_job_running(buf->b_term)) 513 { 514 if (wipe_buf || unload_buf) 515 { 516 if (!can_unload_buffer(buf)) 517 return; 518 519 /* Wiping out or unloading a terminal buffer kills the job. */ 520 free_terminal(buf); 521 } 522 else 523 { 524 /* The job keeps running, hide the buffer. */ 525 del_buf = FALSE; 526 unload_buf = FALSE; 527 } 528 } 529 else 530 { 531 /* A terminal buffer is wiped out if the job has finished. */ 532 del_buf = TRUE; 533 unload_buf = TRUE; 534 wipe_buf = TRUE; 535 } 536 } 537 #endif 538 539 /* Disallow deleting the buffer when it is locked (already being closed or 540 * halfway a command that relies on it). Unloading is allowed. */ 541 if ((del_buf || wipe_buf) && !can_unload_buffer(buf)) 542 return; 543 544 /* check no autocommands closed the window */ 545 if (win != NULL && win_valid_any_tab(win)) 546 { 547 /* Set b_last_cursor when closing the last window for the buffer. 548 * Remember the last cursor position and window options of the buffer. 549 * This used to be only for the current window, but then options like 550 * 'foldmethod' may be lost with a ":only" command. */ 551 if (buf->b_nwindows == 1) 552 set_last_cursor(win); 553 buflist_setfpos(buf, win, 554 win->w_cursor.lnum == 1 ? 0 : win->w_cursor.lnum, 555 win->w_cursor.col, TRUE); 556 } 557 558 set_bufref(&bufref, buf); 559 560 /* When the buffer is no longer in a window, trigger BufWinLeave */ 561 if (buf->b_nwindows == 1) 562 { 563 ++buf->b_locked; 564 if (apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname, 565 FALSE, buf) 566 && !bufref_valid(&bufref)) 567 { 568 /* Autocommands deleted the buffer. */ 569 aucmd_abort: 570 emsg(_(e_auabort)); 571 return; 572 } 573 --buf->b_locked; 574 if (abort_if_last && one_window()) 575 /* Autocommands made this the only window. */ 576 goto aucmd_abort; 577 578 /* When the buffer becomes hidden, but is not unloaded, trigger 579 * BufHidden */ 580 if (!unload_buf) 581 { 582 ++buf->b_locked; 583 if (apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname, 584 FALSE, buf) 585 && !bufref_valid(&bufref)) 586 /* Autocommands deleted the buffer. */ 587 goto aucmd_abort; 588 --buf->b_locked; 589 if (abort_if_last && one_window()) 590 /* Autocommands made this the only window. */ 591 goto aucmd_abort; 592 } 593 #ifdef FEAT_EVAL 594 if (aborting()) /* autocmds may abort script processing */ 595 return; 596 #endif 597 } 598 599 /* If the buffer was in curwin and the window has changed, go back to that 600 * window, if it still exists. This avoids that ":edit x" triggering a 601 * "tabnext" BufUnload autocmd leaves a window behind without a buffer. */ 602 if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin)) 603 { 604 block_autocmds(); 605 goto_tabpage_win(the_curtab, the_curwin); 606 unblock_autocmds(); 607 } 608 609 nwindows = buf->b_nwindows; 610 611 /* decrease the link count from windows (unless not in any window) */ 612 if (buf->b_nwindows > 0) 613 --buf->b_nwindows; 614 615 #ifdef FEAT_DIFF 616 if (diffopt_hiddenoff() && !unload_buf && buf->b_nwindows == 0) 617 diff_buf_delete(buf); /* Clear 'diff' for hidden buffer. */ 618 #endif 619 620 /* Return when a window is displaying the buffer or when it's not 621 * unloaded. */ 622 if (buf->b_nwindows > 0 || !unload_buf) 623 return; 624 625 /* Always remove the buffer when there is no file name. */ 626 if (buf->b_ffname == NULL) 627 del_buf = TRUE; 628 629 /* When closing the current buffer stop Visual mode before freeing 630 * anything. */ 631 if (buf == curbuf && VIsual_active 632 #if defined(EXITFREE) 633 && !entered_free_all_mem 634 #endif 635 ) 636 end_visual_mode(); 637 638 /* 639 * Free all things allocated for this buffer. 640 * Also calls the "BufDelete" autocommands when del_buf is TRUE. 641 */ 642 /* Remember if we are closing the current buffer. Restore the number of 643 * windows, so that autocommands in buf_freeall() don't get confused. */ 644 is_curbuf = (buf == curbuf); 645 buf->b_nwindows = nwindows; 646 647 buf_freeall(buf, (del_buf ? BFA_DEL : 0) + (wipe_buf ? BFA_WIPE : 0)); 648 649 /* Autocommands may have deleted the buffer. */ 650 if (!bufref_valid(&bufref)) 651 return; 652 #ifdef FEAT_EVAL 653 if (aborting()) /* autocmds may abort script processing */ 654 return; 655 #endif 656 657 /* 658 * It's possible that autocommands change curbuf to the one being deleted. 659 * This might cause the previous curbuf to be deleted unexpectedly. But 660 * in some cases it's OK to delete the curbuf, because a new one is 661 * obtained anyway. Therefore only return if curbuf changed to the 662 * deleted buffer. 663 */ 664 if (buf == curbuf && !is_curbuf) 665 return; 666 667 if (win_valid_any_tab(win) && win->w_buffer == buf) 668 win->w_buffer = NULL; /* make sure we don't use the buffer now */ 669 670 /* Autocommands may have opened or closed windows for this buffer. 671 * Decrement the count for the close we do here. */ 672 if (buf->b_nwindows > 0) 673 --buf->b_nwindows; 674 675 /* 676 * Remove the buffer from the list. 677 */ 678 if (wipe_buf) 679 { 680 if (buf->b_sfname != buf->b_ffname) 681 VIM_CLEAR(buf->b_sfname); 682 else 683 buf->b_sfname = NULL; 684 VIM_CLEAR(buf->b_ffname); 685 if (buf->b_prev == NULL) 686 firstbuf = buf->b_next; 687 else 688 buf->b_prev->b_next = buf->b_next; 689 if (buf->b_next == NULL) 690 lastbuf = buf->b_prev; 691 else 692 buf->b_next->b_prev = buf->b_prev; 693 free_buffer(buf); 694 } 695 else 696 { 697 if (del_buf) 698 { 699 /* Free all internal variables and reset option values, to make 700 * ":bdel" compatible with Vim 5.7. */ 701 free_buffer_stuff(buf, TRUE); 702 703 /* Make it look like a new buffer. */ 704 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 705 706 /* Init the options when loaded again. */ 707 buf->b_p_initialized = FALSE; 708 } 709 buf_clear_file(buf); 710 if (del_buf) 711 buf->b_p_bl = FALSE; 712 } 713 } 714 715 /* 716 * Make buffer not contain a file. 717 */ 718 void 719 buf_clear_file(buf_T *buf) 720 { 721 buf->b_ml.ml_line_count = 1; 722 unchanged(buf, TRUE, TRUE); 723 buf->b_shortname = FALSE; 724 buf->b_p_eol = TRUE; 725 buf->b_start_eol = TRUE; 726 buf->b_p_bomb = FALSE; 727 buf->b_start_bomb = FALSE; 728 buf->b_ml.ml_mfp = NULL; 729 buf->b_ml.ml_flags = ML_EMPTY; /* empty buffer */ 730 #ifdef FEAT_NETBEANS_INTG 731 netbeans_deleted_all_lines(buf); 732 #endif 733 } 734 735 /* 736 * buf_freeall() - free all things allocated for a buffer that are related to 737 * the file. Careful: get here with "curwin" NULL when exiting. 738 * flags: 739 * BFA_DEL buffer is going to be deleted 740 * BFA_WIPE buffer is going to be wiped out 741 * BFA_KEEP_UNDO do not free undo information 742 */ 743 void 744 buf_freeall(buf_T *buf, int flags) 745 { 746 int is_curbuf = (buf == curbuf); 747 bufref_T bufref; 748 int is_curwin = (curwin != NULL && curwin->w_buffer == buf); 749 win_T *the_curwin = curwin; 750 tabpage_T *the_curtab = curtab; 751 752 /* Make sure the buffer isn't closed by autocommands. */ 753 ++buf->b_locked; 754 set_bufref(&bufref, buf); 755 if (buf->b_ml.ml_mfp != NULL) 756 { 757 if (apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, 758 FALSE, buf) 759 && !bufref_valid(&bufref)) 760 /* autocommands deleted the buffer */ 761 return; 762 } 763 if ((flags & BFA_DEL) && buf->b_p_bl) 764 { 765 if (apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname, 766 FALSE, buf) 767 && !bufref_valid(&bufref)) 768 /* autocommands deleted the buffer */ 769 return; 770 } 771 if (flags & BFA_WIPE) 772 { 773 if (apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname, 774 FALSE, buf) 775 && !bufref_valid(&bufref)) 776 /* autocommands deleted the buffer */ 777 return; 778 } 779 --buf->b_locked; 780 781 /* If the buffer was in curwin and the window has changed, go back to that 782 * window, if it still exists. This avoids that ":edit x" triggering a 783 * "tabnext" BufUnload autocmd leaves a window behind without a buffer. */ 784 if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin)) 785 { 786 block_autocmds(); 787 goto_tabpage_win(the_curtab, the_curwin); 788 unblock_autocmds(); 789 } 790 791 #ifdef FEAT_EVAL 792 if (aborting()) /* autocmds may abort script processing */ 793 return; 794 #endif 795 796 /* 797 * It's possible that autocommands change curbuf to the one being deleted. 798 * This might cause curbuf to be deleted unexpectedly. But in some cases 799 * it's OK to delete the curbuf, because a new one is obtained anyway. 800 * Therefore only return if curbuf changed to the deleted buffer. 801 */ 802 if (buf == curbuf && !is_curbuf) 803 return; 804 #ifdef FEAT_DIFF 805 diff_buf_delete(buf); /* Can't use 'diff' for unloaded buffer. */ 806 #endif 807 #ifdef FEAT_SYN_HL 808 /* Remove any ownsyntax, unless exiting. */ 809 if (curwin != NULL && curwin->w_buffer == buf) 810 reset_synblock(curwin); 811 #endif 812 813 #ifdef FEAT_FOLDING 814 /* No folds in an empty buffer. */ 815 { 816 win_T *win; 817 tabpage_T *tp; 818 819 FOR_ALL_TAB_WINDOWS(tp, win) 820 if (win->w_buffer == buf) 821 clearFolding(win); 822 } 823 #endif 824 825 #ifdef FEAT_TCL 826 tcl_buffer_free(buf); 827 #endif 828 ml_close(buf, TRUE); /* close and delete the memline/memfile */ 829 buf->b_ml.ml_line_count = 0; /* no lines in buffer */ 830 if ((flags & BFA_KEEP_UNDO) == 0) 831 { 832 u_blockfree(buf); /* free the memory allocated for undo */ 833 u_clearall(buf); /* reset all undo information */ 834 } 835 #ifdef FEAT_SYN_HL 836 syntax_clear(&buf->b_s); /* reset syntax info */ 837 #endif 838 #ifdef FEAT_TEXT_PROP 839 clear_buf_prop_types(buf); 840 #endif 841 buf->b_flags &= ~BF_READERR; /* a read error is no longer relevant */ 842 } 843 844 /* 845 * Free a buffer structure and the things it contains related to the buffer 846 * itself (not the file, that must have been done already). 847 */ 848 static void 849 free_buffer(buf_T *buf) 850 { 851 ++buf_free_count; 852 free_buffer_stuff(buf, TRUE); 853 #ifdef FEAT_EVAL 854 /* b:changedtick uses an item in buf_T, remove it now */ 855 dictitem_remove(buf->b_vars, (dictitem_T *)&buf->b_ct_di); 856 unref_var_dict(buf->b_vars); 857 #endif 858 #ifdef FEAT_LUA 859 lua_buffer_free(buf); 860 #endif 861 #ifdef FEAT_MZSCHEME 862 mzscheme_buffer_free(buf); 863 #endif 864 #ifdef FEAT_PERL 865 perl_buf_free(buf); 866 #endif 867 #ifdef FEAT_PYTHON 868 python_buffer_free(buf); 869 #endif 870 #ifdef FEAT_PYTHON3 871 python3_buffer_free(buf); 872 #endif 873 #ifdef FEAT_RUBY 874 ruby_buffer_free(buf); 875 #endif 876 #ifdef FEAT_JOB_CHANNEL 877 channel_buffer_free(buf); 878 #endif 879 #ifdef FEAT_TERMINAL 880 free_terminal(buf); 881 #endif 882 #ifdef FEAT_JOB_CHANNEL 883 vim_free(buf->b_prompt_text); 884 free_callback(&buf->b_prompt_callback); 885 #endif 886 887 buf_hashtab_remove(buf); 888 889 aubuflocal_remove(buf); 890 891 if (autocmd_busy) 892 { 893 /* Do not free the buffer structure while autocommands are executing, 894 * it's still needed. Free it when autocmd_busy is reset. */ 895 buf->b_next = au_pending_free_buf; 896 au_pending_free_buf = buf; 897 } 898 else 899 vim_free(buf); 900 } 901 902 /* 903 * Initializes b:changedtick. 904 */ 905 static void 906 init_changedtick(buf_T *buf) 907 { 908 dictitem_T *di = (dictitem_T *)&buf->b_ct_di; 909 910 di->di_flags = DI_FLAGS_FIX | DI_FLAGS_RO; 911 di->di_tv.v_type = VAR_NUMBER; 912 di->di_tv.v_lock = VAR_FIXED; 913 di->di_tv.vval.v_number = 0; 914 915 #ifdef FEAT_EVAL 916 STRCPY(buf->b_ct_di.di_key, "changedtick"); 917 (void)dict_add(buf->b_vars, di); 918 #endif 919 } 920 921 /* 922 * Free stuff in the buffer for ":bdel" and when wiping out the buffer. 923 */ 924 static void 925 free_buffer_stuff( 926 buf_T *buf, 927 int free_options) /* free options as well */ 928 { 929 if (free_options) 930 { 931 clear_wininfo(buf); /* including window-local options */ 932 free_buf_options(buf, TRUE); 933 #ifdef FEAT_SPELL 934 ga_clear(&buf->b_s.b_langp); 935 #endif 936 } 937 #ifdef FEAT_EVAL 938 { 939 varnumber_T tick = CHANGEDTICK(buf); 940 941 vars_clear(&buf->b_vars->dv_hashtab); /* free all buffer variables */ 942 hash_init(&buf->b_vars->dv_hashtab); 943 init_changedtick(buf); 944 CHANGEDTICK(buf) = tick; 945 } 946 #endif 947 uc_clear(&buf->b_ucmds); // clear local user commands 948 #ifdef FEAT_SIGNS 949 buf_delete_signs(buf, (char_u *)"*"); // delete any signs 950 #endif 951 #ifdef FEAT_NETBEANS_INTG 952 netbeans_file_killed(buf); 953 #endif 954 map_clear_int(buf, MAP_ALL_MODES, TRUE, FALSE); /* clear local mappings */ 955 map_clear_int(buf, MAP_ALL_MODES, TRUE, TRUE); /* clear local abbrevs */ 956 VIM_CLEAR(buf->b_start_fenc); 957 } 958 959 /* 960 * Free the b_wininfo list for buffer "buf". 961 */ 962 static void 963 clear_wininfo(buf_T *buf) 964 { 965 wininfo_T *wip; 966 967 while (buf->b_wininfo != NULL) 968 { 969 wip = buf->b_wininfo; 970 buf->b_wininfo = wip->wi_next; 971 if (wip->wi_optset) 972 { 973 clear_winopt(&wip->wi_opt); 974 #ifdef FEAT_FOLDING 975 deleteFoldRecurse(&wip->wi_folds); 976 #endif 977 } 978 vim_free(wip); 979 } 980 } 981 982 /* 983 * Go to another buffer. Handles the result of the ATTENTION dialog. 984 */ 985 void 986 goto_buffer( 987 exarg_T *eap, 988 int start, 989 int dir, 990 int count) 991 { 992 bufref_T old_curbuf; 993 994 set_bufref(&old_curbuf, curbuf); 995 996 swap_exists_action = SEA_DIALOG; 997 (void)do_buffer(*eap->cmd == 's' ? DOBUF_SPLIT : DOBUF_GOTO, 998 start, dir, count, eap->forceit); 999 if (swap_exists_action == SEA_QUIT && *eap->cmd == 's') 1000 { 1001 #if defined(FEAT_EVAL) 1002 cleanup_T cs; 1003 1004 /* Reset the error/interrupt/exception state here so that 1005 * aborting() returns FALSE when closing a window. */ 1006 enter_cleanup(&cs); 1007 #endif 1008 1009 /* Quitting means closing the split window, nothing else. */ 1010 win_close(curwin, TRUE); 1011 swap_exists_action = SEA_NONE; 1012 swap_exists_did_quit = TRUE; 1013 1014 #if defined(FEAT_EVAL) 1015 /* Restore the error/interrupt/exception state if not discarded by a 1016 * new aborting error, interrupt, or uncaught exception. */ 1017 leave_cleanup(&cs); 1018 #endif 1019 } 1020 else 1021 handle_swap_exists(&old_curbuf); 1022 } 1023 1024 /* 1025 * Handle the situation of swap_exists_action being set. 1026 * It is allowed for "old_curbuf" to be NULL or invalid. 1027 */ 1028 void 1029 handle_swap_exists(bufref_T *old_curbuf) 1030 { 1031 #if defined(FEAT_EVAL) 1032 cleanup_T cs; 1033 #endif 1034 #ifdef FEAT_SYN_HL 1035 long old_tw = curbuf->b_p_tw; 1036 #endif 1037 buf_T *buf; 1038 1039 if (swap_exists_action == SEA_QUIT) 1040 { 1041 #if defined(FEAT_EVAL) 1042 /* Reset the error/interrupt/exception state here so that 1043 * aborting() returns FALSE when closing a buffer. */ 1044 enter_cleanup(&cs); 1045 #endif 1046 1047 /* User selected Quit at ATTENTION prompt. Go back to previous 1048 * buffer. If that buffer is gone or the same as the current one, 1049 * open a new, empty buffer. */ 1050 swap_exists_action = SEA_NONE; /* don't want it again */ 1051 swap_exists_did_quit = TRUE; 1052 close_buffer(curwin, curbuf, DOBUF_UNLOAD, FALSE); 1053 if (old_curbuf == NULL || !bufref_valid(old_curbuf) 1054 || old_curbuf->br_buf == curbuf) 1055 buf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED); 1056 else 1057 buf = old_curbuf->br_buf; 1058 if (buf != NULL) 1059 { 1060 int old_msg_silent = msg_silent; 1061 1062 if (shortmess(SHM_FILEINFO)) 1063 msg_silent = 1; // prevent fileinfo message 1064 enter_buffer(buf); 1065 // restore msg_silent, so that the command line will be shown 1066 msg_silent = old_msg_silent; 1067 1068 #ifdef FEAT_SYN_HL 1069 if (old_tw != curbuf->b_p_tw) 1070 check_colorcolumn(curwin); 1071 #endif 1072 } 1073 /* If "old_curbuf" is NULL we are in big trouble here... */ 1074 1075 #if defined(FEAT_EVAL) 1076 /* Restore the error/interrupt/exception state if not discarded by a 1077 * new aborting error, interrupt, or uncaught exception. */ 1078 leave_cleanup(&cs); 1079 #endif 1080 } 1081 else if (swap_exists_action == SEA_RECOVER) 1082 { 1083 #if defined(FEAT_EVAL) 1084 /* Reset the error/interrupt/exception state here so that 1085 * aborting() returns FALSE when closing a buffer. */ 1086 enter_cleanup(&cs); 1087 #endif 1088 1089 /* User selected Recover at ATTENTION prompt. */ 1090 msg_scroll = TRUE; 1091 ml_recover(FALSE); 1092 msg_puts("\n"); /* don't overwrite the last message */ 1093 cmdline_row = msg_row; 1094 do_modelines(0); 1095 1096 #if defined(FEAT_EVAL) 1097 /* Restore the error/interrupt/exception state if not discarded by a 1098 * new aborting error, interrupt, or uncaught exception. */ 1099 leave_cleanup(&cs); 1100 #endif 1101 } 1102 swap_exists_action = SEA_NONE; 1103 } 1104 1105 /* 1106 * do_bufdel() - delete or unload buffer(s) 1107 * 1108 * addr_count == 0: ":bdel" - delete current buffer 1109 * addr_count == 1: ":N bdel" or ":bdel N [N ..]" - first delete 1110 * buffer "end_bnr", then any other arguments. 1111 * addr_count == 2: ":N,N bdel" - delete buffers in range 1112 * 1113 * command can be DOBUF_UNLOAD (":bunload"), DOBUF_WIPE (":bwipeout") or 1114 * DOBUF_DEL (":bdel") 1115 * 1116 * Returns error message or NULL 1117 */ 1118 char * 1119 do_bufdel( 1120 int command, 1121 char_u *arg, /* pointer to extra arguments */ 1122 int addr_count, 1123 int start_bnr, /* first buffer number in a range */ 1124 int end_bnr, /* buffer nr or last buffer nr in a range */ 1125 int forceit) 1126 { 1127 int do_current = 0; /* delete current buffer? */ 1128 int deleted = 0; /* number of buffers deleted */ 1129 char *errormsg = NULL; /* return value */ 1130 int bnr; /* buffer number */ 1131 char_u *p; 1132 1133 if (addr_count == 0) 1134 { 1135 (void)do_buffer(command, DOBUF_CURRENT, FORWARD, 0, forceit); 1136 } 1137 else 1138 { 1139 if (addr_count == 2) 1140 { 1141 if (*arg) /* both range and argument is not allowed */ 1142 return _(e_trailing); 1143 bnr = start_bnr; 1144 } 1145 else /* addr_count == 1 */ 1146 bnr = end_bnr; 1147 1148 for ( ;!got_int; ui_breakcheck()) 1149 { 1150 /* 1151 * delete the current buffer last, otherwise when the 1152 * current buffer is deleted, the next buffer becomes 1153 * the current one and will be loaded, which may then 1154 * also be deleted, etc. 1155 */ 1156 if (bnr == curbuf->b_fnum) 1157 do_current = bnr; 1158 else if (do_buffer(command, DOBUF_FIRST, FORWARD, (int)bnr, 1159 forceit) == OK) 1160 ++deleted; 1161 1162 /* 1163 * find next buffer number to delete/unload 1164 */ 1165 if (addr_count == 2) 1166 { 1167 if (++bnr > end_bnr) 1168 break; 1169 } 1170 else /* addr_count == 1 */ 1171 { 1172 arg = skipwhite(arg); 1173 if (*arg == NUL) 1174 break; 1175 if (!VIM_ISDIGIT(*arg)) 1176 { 1177 p = skiptowhite_esc(arg); 1178 bnr = buflist_findpat(arg, p, command == DOBUF_WIPE, 1179 FALSE, FALSE); 1180 if (bnr < 0) /* failed */ 1181 break; 1182 arg = p; 1183 } 1184 else 1185 bnr = getdigits(&arg); 1186 } 1187 } 1188 if (!got_int && do_current && do_buffer(command, DOBUF_FIRST, 1189 FORWARD, do_current, forceit) == OK) 1190 ++deleted; 1191 1192 if (deleted == 0) 1193 { 1194 if (command == DOBUF_UNLOAD) 1195 STRCPY(IObuff, _("E515: No buffers were unloaded")); 1196 else if (command == DOBUF_DEL) 1197 STRCPY(IObuff, _("E516: No buffers were deleted")); 1198 else 1199 STRCPY(IObuff, _("E517: No buffers were wiped out")); 1200 errormsg = (char *)IObuff; 1201 } 1202 else if (deleted >= p_report) 1203 { 1204 if (command == DOBUF_UNLOAD) 1205 smsg(NGETTEXT("%d buffer unloaded", 1206 "%d buffers unloaded", deleted), deleted); 1207 else if (command == DOBUF_DEL) 1208 smsg(NGETTEXT("%d buffer deleted", 1209 "%d buffers deleted", deleted), deleted); 1210 else 1211 smsg(NGETTEXT("%d buffer wiped out", 1212 "%d buffers wiped out", deleted), deleted); 1213 } 1214 } 1215 1216 1217 return errormsg; 1218 } 1219 1220 /* 1221 * Make the current buffer empty. 1222 * Used when it is wiped out and it's the last buffer. 1223 */ 1224 static int 1225 empty_curbuf( 1226 int close_others, 1227 int forceit, 1228 int action) 1229 { 1230 int retval; 1231 buf_T *buf = curbuf; 1232 bufref_T bufref; 1233 1234 if (action == DOBUF_UNLOAD) 1235 { 1236 emsg(_("E90: Cannot unload last buffer")); 1237 return FAIL; 1238 } 1239 1240 set_bufref(&bufref, buf); 1241 if (close_others) 1242 /* Close any other windows on this buffer, then make it empty. */ 1243 close_windows(buf, TRUE); 1244 1245 setpcmark(); 1246 retval = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 1247 forceit ? ECMD_FORCEIT : 0, curwin); 1248 1249 /* 1250 * do_ecmd() may create a new buffer, then we have to delete 1251 * the old one. But do_ecmd() may have done that already, check 1252 * if the buffer still exists. 1253 */ 1254 if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows == 0) 1255 close_buffer(NULL, buf, action, FALSE); 1256 if (!close_others) 1257 need_fileinfo = FALSE; 1258 return retval; 1259 } 1260 1261 /* 1262 * Implementation of the commands for the buffer list. 1263 * 1264 * action == DOBUF_GOTO go to specified buffer 1265 * action == DOBUF_SPLIT split window and go to specified buffer 1266 * action == DOBUF_UNLOAD unload specified buffer(s) 1267 * action == DOBUF_DEL delete specified buffer(s) from buffer list 1268 * action == DOBUF_WIPE delete specified buffer(s) really 1269 * 1270 * start == DOBUF_CURRENT go to "count" buffer from current buffer 1271 * start == DOBUF_FIRST go to "count" buffer from first buffer 1272 * start == DOBUF_LAST go to "count" buffer from last buffer 1273 * start == DOBUF_MOD go to "count" modified buffer from current buffer 1274 * 1275 * Return FAIL or OK. 1276 */ 1277 int 1278 do_buffer( 1279 int action, 1280 int start, 1281 int dir, /* FORWARD or BACKWARD */ 1282 int count, /* buffer number or number of buffers */ 1283 int forceit) /* TRUE for :...! */ 1284 { 1285 buf_T *buf; 1286 buf_T *bp; 1287 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1288 || action == DOBUF_WIPE); 1289 1290 switch (start) 1291 { 1292 case DOBUF_FIRST: buf = firstbuf; break; 1293 case DOBUF_LAST: buf = lastbuf; break; 1294 default: buf = curbuf; break; 1295 } 1296 if (start == DOBUF_MOD) /* find next modified buffer */ 1297 { 1298 while (count-- > 0) 1299 { 1300 do 1301 { 1302 buf = buf->b_next; 1303 if (buf == NULL) 1304 buf = firstbuf; 1305 } 1306 while (buf != curbuf && !bufIsChanged(buf)); 1307 } 1308 if (!bufIsChanged(buf)) 1309 { 1310 emsg(_("E84: No modified buffer found")); 1311 return FAIL; 1312 } 1313 } 1314 else if (start == DOBUF_FIRST && count) /* find specified buffer number */ 1315 { 1316 while (buf != NULL && buf->b_fnum != count) 1317 buf = buf->b_next; 1318 } 1319 else 1320 { 1321 bp = NULL; 1322 while (count > 0 || (!unload && !buf->b_p_bl && bp != buf)) 1323 { 1324 /* remember the buffer where we start, we come back there when all 1325 * buffers are unlisted. */ 1326 if (bp == NULL) 1327 bp = buf; 1328 if (dir == FORWARD) 1329 { 1330 buf = buf->b_next; 1331 if (buf == NULL) 1332 buf = firstbuf; 1333 } 1334 else 1335 { 1336 buf = buf->b_prev; 1337 if (buf == NULL) 1338 buf = lastbuf; 1339 } 1340 /* don't count unlisted buffers */ 1341 if (unload || buf->b_p_bl) 1342 { 1343 --count; 1344 bp = NULL; /* use this buffer as new starting point */ 1345 } 1346 if (bp == buf) 1347 { 1348 /* back where we started, didn't find anything. */ 1349 emsg(_("E85: There is no listed buffer")); 1350 return FAIL; 1351 } 1352 } 1353 } 1354 1355 if (buf == NULL) /* could not find it */ 1356 { 1357 if (start == DOBUF_FIRST) 1358 { 1359 /* don't warn when deleting */ 1360 if (!unload) 1361 semsg(_(e_nobufnr), count); 1362 } 1363 else if (dir == FORWARD) 1364 emsg(_("E87: Cannot go beyond last buffer")); 1365 else 1366 emsg(_("E88: Cannot go before first buffer")); 1367 return FAIL; 1368 } 1369 1370 #ifdef FEAT_GUI 1371 need_mouse_correct = TRUE; 1372 #endif 1373 1374 /* 1375 * delete buffer buf from memory and/or the list 1376 */ 1377 if (unload) 1378 { 1379 int forward; 1380 bufref_T bufref; 1381 1382 if (!can_unload_buffer(buf)) 1383 return FAIL; 1384 1385 set_bufref(&bufref, buf); 1386 1387 /* When unloading or deleting a buffer that's already unloaded and 1388 * unlisted: fail silently. */ 1389 if (action != DOBUF_WIPE && buf->b_ml.ml_mfp == NULL && !buf->b_p_bl) 1390 return FAIL; 1391 1392 if (!forceit && bufIsChanged(buf)) 1393 { 1394 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1395 if ((p_confirm || cmdmod.confirm) && p_write) 1396 { 1397 dialog_changed(buf, FALSE); 1398 if (!bufref_valid(&bufref)) 1399 /* Autocommand deleted buffer, oops! It's not changed 1400 * now. */ 1401 return FAIL; 1402 /* If it's still changed fail silently, the dialog already 1403 * mentioned why it fails. */ 1404 if (bufIsChanged(buf)) 1405 return FAIL; 1406 } 1407 else 1408 #endif 1409 { 1410 semsg(_("E89: No write since last change for buffer %d (add ! to override)"), 1411 buf->b_fnum); 1412 return FAIL; 1413 } 1414 } 1415 1416 /* When closing the current buffer stop Visual mode. */ 1417 if (buf == curbuf && VIsual_active) 1418 end_visual_mode(); 1419 1420 /* 1421 * If deleting the last (listed) buffer, make it empty. 1422 * The last (listed) buffer cannot be unloaded. 1423 */ 1424 FOR_ALL_BUFFERS(bp) 1425 if (bp->b_p_bl && bp != buf) 1426 break; 1427 if (bp == NULL && buf == curbuf) 1428 return empty_curbuf(TRUE, forceit, action); 1429 1430 /* 1431 * If the deleted buffer is the current one, close the current window 1432 * (unless it's the only window). Repeat this so long as we end up in 1433 * a window with this buffer. 1434 */ 1435 while (buf == curbuf 1436 && !(curwin->w_closing || curwin->w_buffer->b_locked > 0) 1437 && (!ONE_WINDOW || first_tabpage->tp_next != NULL)) 1438 { 1439 if (win_close(curwin, FALSE) == FAIL) 1440 break; 1441 } 1442 1443 /* 1444 * If the buffer to be deleted is not the current one, delete it here. 1445 */ 1446 if (buf != curbuf) 1447 { 1448 close_windows(buf, FALSE); 1449 if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows <= 0) 1450 close_buffer(NULL, buf, action, FALSE); 1451 return OK; 1452 } 1453 1454 /* 1455 * Deleting the current buffer: Need to find another buffer to go to. 1456 * There should be another, otherwise it would have been handled 1457 * above. However, autocommands may have deleted all buffers. 1458 * First use au_new_curbuf.br_buf, if it is valid. 1459 * Then prefer the buffer we most recently visited. 1460 * Else try to find one that is loaded, after the current buffer, 1461 * then before the current buffer. 1462 * Finally use any buffer. 1463 */ 1464 buf = NULL; /* selected buffer */ 1465 bp = NULL; /* used when no loaded buffer found */ 1466 if (au_new_curbuf.br_buf != NULL && bufref_valid(&au_new_curbuf)) 1467 buf = au_new_curbuf.br_buf; 1468 #ifdef FEAT_JUMPLIST 1469 else if (curwin->w_jumplistlen > 0) 1470 { 1471 int jumpidx; 1472 1473 jumpidx = curwin->w_jumplistidx - 1; 1474 if (jumpidx < 0) 1475 jumpidx = curwin->w_jumplistlen - 1; 1476 1477 forward = jumpidx; 1478 while (jumpidx != curwin->w_jumplistidx) 1479 { 1480 buf = buflist_findnr(curwin->w_jumplist[jumpidx].fmark.fnum); 1481 if (buf != NULL) 1482 { 1483 if (buf == curbuf || !buf->b_p_bl) 1484 buf = NULL; /* skip current and unlisted bufs */ 1485 else if (buf->b_ml.ml_mfp == NULL) 1486 { 1487 /* skip unloaded buf, but may keep it for later */ 1488 if (bp == NULL) 1489 bp = buf; 1490 buf = NULL; 1491 } 1492 } 1493 if (buf != NULL) /* found a valid buffer: stop searching */ 1494 break; 1495 /* advance to older entry in jump list */ 1496 if (!jumpidx && curwin->w_jumplistidx == curwin->w_jumplistlen) 1497 break; 1498 if (--jumpidx < 0) 1499 jumpidx = curwin->w_jumplistlen - 1; 1500 if (jumpidx == forward) /* List exhausted for sure */ 1501 break; 1502 } 1503 } 1504 #endif 1505 1506 if (buf == NULL) /* No previous buffer, Try 2'nd approach */ 1507 { 1508 forward = TRUE; 1509 buf = curbuf->b_next; 1510 for (;;) 1511 { 1512 if (buf == NULL) 1513 { 1514 if (!forward) /* tried both directions */ 1515 break; 1516 buf = curbuf->b_prev; 1517 forward = FALSE; 1518 continue; 1519 } 1520 /* in non-help buffer, try to skip help buffers, and vv */ 1521 if (buf->b_help == curbuf->b_help && buf->b_p_bl) 1522 { 1523 if (buf->b_ml.ml_mfp != NULL) /* found loaded buffer */ 1524 break; 1525 if (bp == NULL) /* remember unloaded buf for later */ 1526 bp = buf; 1527 } 1528 if (forward) 1529 buf = buf->b_next; 1530 else 1531 buf = buf->b_prev; 1532 } 1533 } 1534 if (buf == NULL) /* No loaded buffer, use unloaded one */ 1535 buf = bp; 1536 if (buf == NULL) /* No loaded buffer, find listed one */ 1537 { 1538 FOR_ALL_BUFFERS(buf) 1539 if (buf->b_p_bl && buf != curbuf) 1540 break; 1541 } 1542 if (buf == NULL) /* Still no buffer, just take one */ 1543 { 1544 if (curbuf->b_next != NULL) 1545 buf = curbuf->b_next; 1546 else 1547 buf = curbuf->b_prev; 1548 } 1549 } 1550 1551 if (buf == NULL) 1552 { 1553 /* Autocommands must have wiped out all other buffers. Only option 1554 * now is to make the current buffer empty. */ 1555 return empty_curbuf(FALSE, forceit, action); 1556 } 1557 1558 /* 1559 * make buf current buffer 1560 */ 1561 if (action == DOBUF_SPLIT) /* split window first */ 1562 { 1563 /* If 'switchbuf' contains "useopen": jump to first window containing 1564 * "buf" if one exists */ 1565 if ((swb_flags & SWB_USEOPEN) && buf_jump_open_win(buf)) 1566 return OK; 1567 /* If 'switchbuf' contains "usetab": jump to first window in any tab 1568 * page containing "buf" if one exists */ 1569 if ((swb_flags & SWB_USETAB) && buf_jump_open_tab(buf)) 1570 return OK; 1571 if (win_split(0, 0) == FAIL) 1572 return FAIL; 1573 } 1574 1575 /* go to current buffer - nothing to do */ 1576 if (buf == curbuf) 1577 return OK; 1578 1579 /* 1580 * Check if the current buffer may be abandoned. 1581 */ 1582 if (action == DOBUF_GOTO && !can_abandon(curbuf, forceit)) 1583 { 1584 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1585 if ((p_confirm || cmdmod.confirm) && p_write) 1586 { 1587 bufref_T bufref; 1588 1589 set_bufref(&bufref, buf); 1590 dialog_changed(curbuf, FALSE); 1591 if (!bufref_valid(&bufref)) 1592 /* Autocommand deleted buffer, oops! */ 1593 return FAIL; 1594 } 1595 if (bufIsChanged(curbuf)) 1596 #endif 1597 { 1598 no_write_message(); 1599 return FAIL; 1600 } 1601 } 1602 1603 /* Go to the other buffer. */ 1604 set_curbuf(buf, action); 1605 1606 if (action == DOBUF_SPLIT) 1607 RESET_BINDING(curwin); /* reset 'scrollbind' and 'cursorbind' */ 1608 1609 #if defined(FEAT_EVAL) 1610 if (aborting()) /* autocmds may abort script processing */ 1611 return FAIL; 1612 #endif 1613 1614 return OK; 1615 } 1616 1617 /* 1618 * Set current buffer to "buf". Executes autocommands and closes current 1619 * buffer. "action" tells how to close the current buffer: 1620 * DOBUF_GOTO free or hide it 1621 * DOBUF_SPLIT nothing 1622 * DOBUF_UNLOAD unload it 1623 * DOBUF_DEL delete it 1624 * DOBUF_WIPE wipe it out 1625 */ 1626 void 1627 set_curbuf(buf_T *buf, int action) 1628 { 1629 buf_T *prevbuf; 1630 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1631 || action == DOBUF_WIPE); 1632 #ifdef FEAT_SYN_HL 1633 long old_tw = curbuf->b_p_tw; 1634 #endif 1635 bufref_T newbufref; 1636 bufref_T prevbufref; 1637 1638 setpcmark(); 1639 if (!cmdmod.keepalt) 1640 curwin->w_alt_fnum = curbuf->b_fnum; /* remember alternate file */ 1641 buflist_altfpos(curwin); /* remember curpos */ 1642 1643 /* Don't restart Select mode after switching to another buffer. */ 1644 VIsual_reselect = FALSE; 1645 1646 /* close_windows() or apply_autocmds() may change curbuf and wipe out "buf" 1647 */ 1648 prevbuf = curbuf; 1649 set_bufref(&prevbufref, prevbuf); 1650 set_bufref(&newbufref, buf); 1651 1652 /* Autocommands may delete the curren buffer and/or the buffer we wan to go 1653 * to. In those cases don't close the buffer. */ 1654 if (!apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf) 1655 || (bufref_valid(&prevbufref) 1656 && bufref_valid(&newbufref) 1657 #ifdef FEAT_EVAL 1658 && !aborting() 1659 #endif 1660 )) 1661 { 1662 #ifdef FEAT_SYN_HL 1663 if (prevbuf == curwin->w_buffer) 1664 reset_synblock(curwin); 1665 #endif 1666 if (unload) 1667 close_windows(prevbuf, FALSE); 1668 #if defined(FEAT_EVAL) 1669 if (bufref_valid(&prevbufref) && !aborting()) 1670 #else 1671 if (bufref_valid(&prevbufref)) 1672 #endif 1673 { 1674 win_T *previouswin = curwin; 1675 if (prevbuf == curbuf) 1676 u_sync(FALSE); 1677 close_buffer(prevbuf == curwin->w_buffer ? curwin : NULL, prevbuf, 1678 unload ? action : (action == DOBUF_GOTO 1679 && !buf_hide(prevbuf) 1680 && !bufIsChanged(prevbuf)) ? DOBUF_UNLOAD : 0, FALSE); 1681 if (curwin != previouswin && win_valid(previouswin)) 1682 /* autocommands changed curwin, Grr! */ 1683 curwin = previouswin; 1684 } 1685 } 1686 /* An autocommand may have deleted "buf", already entered it (e.g., when 1687 * it did ":bunload") or aborted the script processing. 1688 * If curwin->w_buffer is null, enter_buffer() will make it valid again */ 1689 if ((buf_valid(buf) && buf != curbuf 1690 #ifdef FEAT_EVAL 1691 && !aborting() 1692 #endif 1693 ) || curwin->w_buffer == NULL) 1694 { 1695 enter_buffer(buf); 1696 #ifdef FEAT_SYN_HL 1697 if (old_tw != curbuf->b_p_tw) 1698 check_colorcolumn(curwin); 1699 #endif 1700 } 1701 } 1702 1703 /* 1704 * Enter a new current buffer. 1705 * Old curbuf must have been abandoned already! This also means "curbuf" may 1706 * be pointing to freed memory. 1707 */ 1708 void 1709 enter_buffer(buf_T *buf) 1710 { 1711 /* Copy buffer and window local option values. Not for a help buffer. */ 1712 buf_copy_options(buf, BCO_ENTER | BCO_NOHELP); 1713 if (!buf->b_help) 1714 get_winopts(buf); 1715 #ifdef FEAT_FOLDING 1716 else 1717 /* Remove all folds in the window. */ 1718 clearFolding(curwin); 1719 foldUpdateAll(curwin); /* update folds (later). */ 1720 #endif 1721 1722 /* Get the buffer in the current window. */ 1723 curwin->w_buffer = buf; 1724 curbuf = buf; 1725 ++curbuf->b_nwindows; 1726 1727 #ifdef FEAT_DIFF 1728 if (curwin->w_p_diff) 1729 diff_buf_add(curbuf); 1730 #endif 1731 1732 #ifdef FEAT_SYN_HL 1733 curwin->w_s = &(curbuf->b_s); 1734 #endif 1735 1736 /* Cursor on first line by default. */ 1737 curwin->w_cursor.lnum = 1; 1738 curwin->w_cursor.col = 0; 1739 curwin->w_cursor.coladd = 0; 1740 curwin->w_set_curswant = TRUE; 1741 curwin->w_topline_was_set = FALSE; 1742 1743 /* mark cursor position as being invalid */ 1744 curwin->w_valid = 0; 1745 1746 buflist_setfpos(curbuf, curwin, curbuf->b_last_cursor.lnum, 1747 curbuf->b_last_cursor.col, TRUE); 1748 1749 /* Make sure the buffer is loaded. */ 1750 if (curbuf->b_ml.ml_mfp == NULL) /* need to load the file */ 1751 { 1752 /* If there is no filetype, allow for detecting one. Esp. useful for 1753 * ":ball" used in a autocommand. If there already is a filetype we 1754 * might prefer to keep it. */ 1755 if (*curbuf->b_p_ft == NUL) 1756 did_filetype = FALSE; 1757 1758 open_buffer(FALSE, NULL, 0); 1759 } 1760 else 1761 { 1762 if (!msg_silent && !shortmess(SHM_FILEINFO)) 1763 need_fileinfo = TRUE; // display file info after redraw 1764 1765 // check if file changed 1766 (void)buf_check_timestamp(curbuf, FALSE); 1767 1768 curwin->w_topline = 1; 1769 #ifdef FEAT_DIFF 1770 curwin->w_topfill = 0; 1771 #endif 1772 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 1773 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 1774 } 1775 1776 /* If autocommands did not change the cursor position, restore cursor lnum 1777 * and possibly cursor col. */ 1778 if (curwin->w_cursor.lnum == 1 && inindent(0)) 1779 buflist_getfpos(); 1780 1781 check_arg_idx(curwin); /* check for valid arg_idx */ 1782 #ifdef FEAT_TITLE 1783 maketitle(); 1784 #endif 1785 /* when autocmds didn't change it */ 1786 if (curwin->w_topline == 1 && !curwin->w_topline_was_set) 1787 scroll_cursor_halfway(FALSE); /* redisplay at correct position */ 1788 1789 #ifdef FEAT_NETBEANS_INTG 1790 /* Send fileOpened event because we've changed buffers. */ 1791 netbeans_file_activated(curbuf); 1792 #endif 1793 1794 /* Change directories when the 'acd' option is set. */ 1795 DO_AUTOCHDIR; 1796 1797 #ifdef FEAT_KEYMAP 1798 if (curbuf->b_kmap_state & KEYMAP_INIT) 1799 (void)keymap_init(); 1800 #endif 1801 #ifdef FEAT_SPELL 1802 /* May need to set the spell language. Can only do this after the buffer 1803 * has been properly setup. */ 1804 if (!curbuf->b_help && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) 1805 (void)did_set_spelllang(curwin); 1806 #endif 1807 #ifdef FEAT_VIMINFO 1808 curbuf->b_last_used = vim_time(); 1809 #endif 1810 1811 redraw_later(NOT_VALID); 1812 } 1813 1814 #if defined(FEAT_AUTOCHDIR) || defined(PROTO) 1815 /* 1816 * Change to the directory of the current buffer. 1817 * Don't do this while still starting up. 1818 */ 1819 void 1820 do_autochdir(void) 1821 { 1822 if ((starting == 0 || test_autochdir) 1823 && curbuf->b_ffname != NULL 1824 && vim_chdirfile(curbuf->b_ffname, "auto") == OK) 1825 shorten_fnames(TRUE); 1826 } 1827 #endif 1828 1829 void 1830 no_write_message(void) 1831 { 1832 #ifdef FEAT_TERMINAL 1833 if (term_job_running(curbuf->b_term)) 1834 emsg(_("E948: Job still running (add ! to end the job)")); 1835 else 1836 #endif 1837 emsg(_("E37: No write since last change (add ! to override)")); 1838 } 1839 1840 void 1841 no_write_message_nobang(buf_T *buf UNUSED) 1842 { 1843 #ifdef FEAT_TERMINAL 1844 if (term_job_running(buf->b_term)) 1845 emsg(_("E948: Job still running")); 1846 else 1847 #endif 1848 emsg(_("E37: No write since last change")); 1849 } 1850 1851 /* 1852 * functions for dealing with the buffer list 1853 */ 1854 1855 static int top_file_num = 1; /* highest file number */ 1856 1857 /* 1858 * Return TRUE if the current buffer is empty, unnamed, unmodified and used in 1859 * only one window. That means it can be re-used. 1860 */ 1861 int 1862 curbuf_reusable(void) 1863 { 1864 return (curbuf != NULL 1865 && curbuf->b_ffname == NULL 1866 && curbuf->b_nwindows <= 1 1867 && (curbuf->b_ml.ml_mfp == NULL || BUFEMPTY()) 1868 #if defined(FEAT_QUICKFIX) 1869 && !bt_quickfix(curbuf) 1870 #endif 1871 && !curbufIsChanged()); 1872 } 1873 1874 /* 1875 * Add a file name to the buffer list. Return a pointer to the buffer. 1876 * If the same file name already exists return a pointer to that buffer. 1877 * If it does not exist, or if fname == NULL, a new entry is created. 1878 * If (flags & BLN_CURBUF) is TRUE, may use current buffer. 1879 * If (flags & BLN_LISTED) is TRUE, add new buffer to buffer list. 1880 * If (flags & BLN_DUMMY) is TRUE, don't count it as a real buffer. 1881 * If (flags & BLN_NEW) is TRUE, don't use an existing buffer. 1882 * If (flags & BLN_NOOPT) is TRUE, don't copy options from the current buffer 1883 * if the buffer already exists. 1884 * This is the ONLY way to create a new buffer. 1885 */ 1886 buf_T * 1887 buflist_new( 1888 char_u *ffname_arg, // full path of fname or relative 1889 char_u *sfname_arg, // short fname or NULL 1890 linenr_T lnum, // preferred cursor line 1891 int flags) // BLN_ defines 1892 { 1893 char_u *ffname = ffname_arg; 1894 char_u *sfname = sfname_arg; 1895 buf_T *buf; 1896 #ifdef UNIX 1897 stat_T st; 1898 #endif 1899 1900 if (top_file_num == 1) 1901 hash_init(&buf_hashtab); 1902 1903 fname_expand(curbuf, &ffname, &sfname); // will allocate ffname 1904 1905 /* 1906 * If file name already exists in the list, update the entry. 1907 */ 1908 #ifdef UNIX 1909 /* On Unix we can use inode numbers when the file exists. Works better 1910 * for hard links. */ 1911 if (sfname == NULL || mch_stat((char *)sfname, &st) < 0) 1912 st.st_dev = (dev_T)-1; 1913 #endif 1914 if (ffname != NULL && !(flags & (BLN_DUMMY | BLN_NEW)) && (buf = 1915 #ifdef UNIX 1916 buflist_findname_stat(ffname, &st) 1917 #else 1918 buflist_findname(ffname) 1919 #endif 1920 ) != NULL) 1921 { 1922 vim_free(ffname); 1923 if (lnum != 0) 1924 buflist_setfpos(buf, curwin, lnum, (colnr_T)0, FALSE); 1925 1926 if ((flags & BLN_NOOPT) == 0) 1927 /* copy the options now, if 'cpo' doesn't have 's' and not done 1928 * already */ 1929 buf_copy_options(buf, 0); 1930 1931 if ((flags & BLN_LISTED) && !buf->b_p_bl) 1932 { 1933 bufref_T bufref; 1934 1935 buf->b_p_bl = TRUE; 1936 set_bufref(&bufref, buf); 1937 if (!(flags & BLN_DUMMY)) 1938 { 1939 if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf) 1940 && !bufref_valid(&bufref)) 1941 return NULL; 1942 } 1943 } 1944 return buf; 1945 } 1946 1947 /* 1948 * If the current buffer has no name and no contents, use the current 1949 * buffer. Otherwise: Need to allocate a new buffer structure. 1950 * 1951 * This is the ONLY place where a new buffer structure is allocated! 1952 * (A spell file buffer is allocated in spell.c, but that's not a normal 1953 * buffer.) 1954 */ 1955 buf = NULL; 1956 if ((flags & BLN_CURBUF) && curbuf_reusable()) 1957 { 1958 buf = curbuf; 1959 /* It's like this buffer is deleted. Watch out for autocommands that 1960 * change curbuf! If that happens, allocate a new buffer anyway. */ 1961 if (curbuf->b_p_bl) 1962 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 1963 if (buf == curbuf) 1964 apply_autocmds(EVENT_BUFWIPEOUT, NULL, NULL, FALSE, curbuf); 1965 #ifdef FEAT_EVAL 1966 if (aborting()) /* autocmds may abort script processing */ 1967 return NULL; 1968 #endif 1969 if (buf == curbuf) 1970 { 1971 /* Make sure 'bufhidden' and 'buftype' are empty */ 1972 clear_string_option(&buf->b_p_bh); 1973 clear_string_option(&buf->b_p_bt); 1974 } 1975 } 1976 if (buf != curbuf || curbuf == NULL) 1977 { 1978 buf = ALLOC_CLEAR_ONE(buf_T); 1979 if (buf == NULL) 1980 { 1981 vim_free(ffname); 1982 return NULL; 1983 } 1984 #ifdef FEAT_EVAL 1985 /* init b: variables */ 1986 buf->b_vars = dict_alloc(); 1987 if (buf->b_vars == NULL) 1988 { 1989 vim_free(ffname); 1990 vim_free(buf); 1991 return NULL; 1992 } 1993 init_var_dict(buf->b_vars, &buf->b_bufvar, VAR_SCOPE); 1994 #endif 1995 init_changedtick(buf); 1996 } 1997 1998 if (ffname != NULL) 1999 { 2000 buf->b_ffname = ffname; 2001 buf->b_sfname = vim_strsave(sfname); 2002 } 2003 2004 clear_wininfo(buf); 2005 buf->b_wininfo = ALLOC_CLEAR_ONE(wininfo_T); 2006 2007 if ((ffname != NULL && (buf->b_ffname == NULL || buf->b_sfname == NULL)) 2008 || buf->b_wininfo == NULL) 2009 { 2010 if (buf->b_sfname != buf->b_ffname) 2011 VIM_CLEAR(buf->b_sfname); 2012 else 2013 buf->b_sfname = NULL; 2014 VIM_CLEAR(buf->b_ffname); 2015 if (buf != curbuf) 2016 free_buffer(buf); 2017 return NULL; 2018 } 2019 2020 if (buf == curbuf) 2021 { 2022 /* free all things allocated for this buffer */ 2023 buf_freeall(buf, 0); 2024 if (buf != curbuf) /* autocommands deleted the buffer! */ 2025 return NULL; 2026 #if defined(FEAT_EVAL) 2027 if (aborting()) /* autocmds may abort script processing */ 2028 return NULL; 2029 #endif 2030 free_buffer_stuff(buf, FALSE); /* delete local variables et al. */ 2031 2032 /* Init the options. */ 2033 buf->b_p_initialized = FALSE; 2034 buf_copy_options(buf, BCO_ENTER); 2035 2036 #ifdef FEAT_KEYMAP 2037 /* need to reload lmaps and set b:keymap_name */ 2038 curbuf->b_kmap_state |= KEYMAP_INIT; 2039 #endif 2040 } 2041 else 2042 { 2043 /* 2044 * put new buffer at the end of the buffer list 2045 */ 2046 buf->b_next = NULL; 2047 if (firstbuf == NULL) /* buffer list is empty */ 2048 { 2049 buf->b_prev = NULL; 2050 firstbuf = buf; 2051 } 2052 else /* append new buffer at end of list */ 2053 { 2054 lastbuf->b_next = buf; 2055 buf->b_prev = lastbuf; 2056 } 2057 lastbuf = buf; 2058 2059 buf->b_fnum = top_file_num++; 2060 if (top_file_num < 0) /* wrap around (may cause duplicates) */ 2061 { 2062 emsg(_("W14: Warning: List of file names overflow")); 2063 if (emsg_silent == 0) 2064 { 2065 out_flush(); 2066 ui_delay(3000L, TRUE); /* make sure it is noticed */ 2067 } 2068 top_file_num = 1; 2069 } 2070 buf_hashtab_add(buf); 2071 2072 /* 2073 * Always copy the options from the current buffer. 2074 */ 2075 buf_copy_options(buf, BCO_ALWAYS); 2076 } 2077 2078 buf->b_wininfo->wi_fpos.lnum = lnum; 2079 buf->b_wininfo->wi_win = curwin; 2080 2081 #ifdef FEAT_SYN_HL 2082 hash_init(&buf->b_s.b_keywtab); 2083 hash_init(&buf->b_s.b_keywtab_ic); 2084 #endif 2085 2086 buf->b_fname = buf->b_sfname; 2087 #ifdef UNIX 2088 if (st.st_dev == (dev_T)-1) 2089 buf->b_dev_valid = FALSE; 2090 else 2091 { 2092 buf->b_dev_valid = TRUE; 2093 buf->b_dev = st.st_dev; 2094 buf->b_ino = st.st_ino; 2095 } 2096 #endif 2097 buf->b_u_synced = TRUE; 2098 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 2099 if (flags & BLN_DUMMY) 2100 buf->b_flags |= BF_DUMMY; 2101 buf_clear_file(buf); 2102 clrallmarks(buf); /* clear marks */ 2103 fmarks_check_names(buf); /* check file marks for this file */ 2104 buf->b_p_bl = (flags & BLN_LISTED) ? TRUE : FALSE; /* init 'buflisted' */ 2105 if (!(flags & BLN_DUMMY)) 2106 { 2107 bufref_T bufref; 2108 2109 /* Tricky: these autocommands may change the buffer list. They could 2110 * also split the window with re-using the one empty buffer. This may 2111 * result in unexpectedly losing the empty buffer. */ 2112 set_bufref(&bufref, buf); 2113 if (apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf) 2114 && !bufref_valid(&bufref)) 2115 return NULL; 2116 if (flags & BLN_LISTED) 2117 { 2118 if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf) 2119 && !bufref_valid(&bufref)) 2120 return NULL; 2121 } 2122 #ifdef FEAT_EVAL 2123 if (aborting()) /* autocmds may abort script processing */ 2124 return NULL; 2125 #endif 2126 } 2127 2128 return buf; 2129 } 2130 2131 /* 2132 * Free the memory for the options of a buffer. 2133 * If "free_p_ff" is TRUE also free 'fileformat', 'buftype' and 2134 * 'fileencoding'. 2135 */ 2136 void 2137 free_buf_options( 2138 buf_T *buf, 2139 int free_p_ff) 2140 { 2141 if (free_p_ff) 2142 { 2143 clear_string_option(&buf->b_p_fenc); 2144 clear_string_option(&buf->b_p_ff); 2145 clear_string_option(&buf->b_p_bh); 2146 clear_string_option(&buf->b_p_bt); 2147 } 2148 #ifdef FEAT_FIND_ID 2149 clear_string_option(&buf->b_p_def); 2150 clear_string_option(&buf->b_p_inc); 2151 # ifdef FEAT_EVAL 2152 clear_string_option(&buf->b_p_inex); 2153 # endif 2154 #endif 2155 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL) 2156 clear_string_option(&buf->b_p_inde); 2157 clear_string_option(&buf->b_p_indk); 2158 #endif 2159 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL) 2160 clear_string_option(&buf->b_p_bexpr); 2161 #endif 2162 #if defined(FEAT_CRYPT) 2163 clear_string_option(&buf->b_p_cm); 2164 #endif 2165 clear_string_option(&buf->b_p_fp); 2166 #if defined(FEAT_EVAL) 2167 clear_string_option(&buf->b_p_fex); 2168 #endif 2169 #ifdef FEAT_CRYPT 2170 clear_string_option(&buf->b_p_key); 2171 #endif 2172 clear_string_option(&buf->b_p_kp); 2173 clear_string_option(&buf->b_p_mps); 2174 clear_string_option(&buf->b_p_fo); 2175 clear_string_option(&buf->b_p_flp); 2176 clear_string_option(&buf->b_p_isk); 2177 #ifdef FEAT_VARTABS 2178 clear_string_option(&buf->b_p_vsts); 2179 vim_free(buf->b_p_vsts_nopaste); 2180 buf->b_p_vsts_nopaste = NULL; 2181 vim_free(buf->b_p_vsts_array); 2182 buf->b_p_vsts_array = NULL; 2183 clear_string_option(&buf->b_p_vts); 2184 VIM_CLEAR(buf->b_p_vts_array); 2185 #endif 2186 #ifdef FEAT_KEYMAP 2187 clear_string_option(&buf->b_p_keymap); 2188 keymap_clear(&buf->b_kmap_ga); 2189 ga_clear(&buf->b_kmap_ga); 2190 #endif 2191 #ifdef FEAT_COMMENTS 2192 clear_string_option(&buf->b_p_com); 2193 #endif 2194 #ifdef FEAT_FOLDING 2195 clear_string_option(&buf->b_p_cms); 2196 #endif 2197 clear_string_option(&buf->b_p_nf); 2198 #ifdef FEAT_SYN_HL 2199 clear_string_option(&buf->b_p_syn); 2200 clear_string_option(&buf->b_s.b_syn_isk); 2201 #endif 2202 #ifdef FEAT_SPELL 2203 clear_string_option(&buf->b_s.b_p_spc); 2204 clear_string_option(&buf->b_s.b_p_spf); 2205 vim_regfree(buf->b_s.b_cap_prog); 2206 buf->b_s.b_cap_prog = NULL; 2207 clear_string_option(&buf->b_s.b_p_spl); 2208 #endif 2209 #ifdef FEAT_SEARCHPATH 2210 clear_string_option(&buf->b_p_sua); 2211 #endif 2212 clear_string_option(&buf->b_p_ft); 2213 #ifdef FEAT_CINDENT 2214 clear_string_option(&buf->b_p_cink); 2215 clear_string_option(&buf->b_p_cino); 2216 #endif 2217 #if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) 2218 clear_string_option(&buf->b_p_cinw); 2219 #endif 2220 #ifdef FEAT_INS_EXPAND 2221 clear_string_option(&buf->b_p_cpt); 2222 #endif 2223 #ifdef FEAT_COMPL_FUNC 2224 clear_string_option(&buf->b_p_cfu); 2225 clear_string_option(&buf->b_p_ofu); 2226 #endif 2227 #ifdef FEAT_QUICKFIX 2228 clear_string_option(&buf->b_p_gp); 2229 clear_string_option(&buf->b_p_mp); 2230 clear_string_option(&buf->b_p_efm); 2231 #endif 2232 clear_string_option(&buf->b_p_ep); 2233 clear_string_option(&buf->b_p_path); 2234 clear_string_option(&buf->b_p_tags); 2235 clear_string_option(&buf->b_p_tc); 2236 #ifdef FEAT_EVAL 2237 clear_string_option(&buf->b_p_tfu); 2238 #endif 2239 #ifdef FEAT_INS_EXPAND 2240 clear_string_option(&buf->b_p_dict); 2241 clear_string_option(&buf->b_p_tsr); 2242 #endif 2243 #ifdef FEAT_TEXTOBJ 2244 clear_string_option(&buf->b_p_qe); 2245 #endif 2246 buf->b_p_ar = -1; 2247 buf->b_p_ul = NO_LOCAL_UNDOLEVEL; 2248 #ifdef FEAT_LISP 2249 clear_string_option(&buf->b_p_lw); 2250 #endif 2251 clear_string_option(&buf->b_p_bkc); 2252 clear_string_option(&buf->b_p_menc); 2253 } 2254 2255 /* 2256 * Get alternate file "n". 2257 * Set linenr to "lnum" or altfpos.lnum if "lnum" == 0. 2258 * Also set cursor column to altfpos.col if 'startofline' is not set. 2259 * if (options & GETF_SETMARK) call setpcmark() 2260 * if (options & GETF_ALT) we are jumping to an alternate file. 2261 * if (options & GETF_SWITCH) respect 'switchbuf' settings when jumping 2262 * 2263 * Return FAIL for failure, OK for success. 2264 */ 2265 int 2266 buflist_getfile( 2267 int n, 2268 linenr_T lnum, 2269 int options, 2270 int forceit) 2271 { 2272 buf_T *buf; 2273 win_T *wp = NULL; 2274 pos_T *fpos; 2275 colnr_T col; 2276 2277 buf = buflist_findnr(n); 2278 if (buf == NULL) 2279 { 2280 if ((options & GETF_ALT) && n == 0) 2281 emsg(_(e_noalt)); 2282 else 2283 semsg(_("E92: Buffer %d not found"), n); 2284 return FAIL; 2285 } 2286 2287 /* if alternate file is the current buffer, nothing to do */ 2288 if (buf == curbuf) 2289 return OK; 2290 2291 if (text_locked()) 2292 { 2293 text_locked_msg(); 2294 return FAIL; 2295 } 2296 if (curbuf_locked()) 2297 return FAIL; 2298 2299 /* altfpos may be changed by getfile(), get it now */ 2300 if (lnum == 0) 2301 { 2302 fpos = buflist_findfpos(buf); 2303 lnum = fpos->lnum; 2304 col = fpos->col; 2305 } 2306 else 2307 col = 0; 2308 2309 if (options & GETF_SWITCH) 2310 { 2311 /* If 'switchbuf' contains "useopen": jump to first window containing 2312 * "buf" if one exists */ 2313 if (swb_flags & SWB_USEOPEN) 2314 wp = buf_jump_open_win(buf); 2315 2316 /* If 'switchbuf' contains "usetab": jump to first window in any tab 2317 * page containing "buf" if one exists */ 2318 if (wp == NULL && (swb_flags & SWB_USETAB)) 2319 wp = buf_jump_open_tab(buf); 2320 2321 /* If 'switchbuf' contains "split", "vsplit" or "newtab" and the 2322 * current buffer isn't empty: open new tab or window */ 2323 if (wp == NULL && (swb_flags & (SWB_VSPLIT | SWB_SPLIT | SWB_NEWTAB)) 2324 && !BUFEMPTY()) 2325 { 2326 if (swb_flags & SWB_NEWTAB) 2327 tabpage_new(); 2328 else if (win_split(0, (swb_flags & SWB_VSPLIT) ? WSP_VERT : 0) 2329 == FAIL) 2330 return FAIL; 2331 RESET_BINDING(curwin); 2332 } 2333 } 2334 2335 ++RedrawingDisabled; 2336 if (GETFILE_SUCCESS(getfile(buf->b_fnum, NULL, NULL, 2337 (options & GETF_SETMARK), lnum, forceit))) 2338 { 2339 --RedrawingDisabled; 2340 2341 /* cursor is at to BOL and w_cursor.lnum is checked due to getfile() */ 2342 if (!p_sol && col != 0) 2343 { 2344 curwin->w_cursor.col = col; 2345 check_cursor_col(); 2346 curwin->w_cursor.coladd = 0; 2347 curwin->w_set_curswant = TRUE; 2348 } 2349 return OK; 2350 } 2351 --RedrawingDisabled; 2352 return FAIL; 2353 } 2354 2355 /* 2356 * go to the last know line number for the current buffer 2357 */ 2358 void 2359 buflist_getfpos(void) 2360 { 2361 pos_T *fpos; 2362 2363 fpos = buflist_findfpos(curbuf); 2364 2365 curwin->w_cursor.lnum = fpos->lnum; 2366 check_cursor_lnum(); 2367 2368 if (p_sol) 2369 curwin->w_cursor.col = 0; 2370 else 2371 { 2372 curwin->w_cursor.col = fpos->col; 2373 check_cursor_col(); 2374 curwin->w_cursor.coladd = 0; 2375 curwin->w_set_curswant = TRUE; 2376 } 2377 } 2378 2379 #if defined(FEAT_QUICKFIX) || defined(FEAT_EVAL) || defined(PROTO) 2380 /* 2381 * Find file in buffer list by name (it has to be for the current window). 2382 * Returns NULL if not found. 2383 */ 2384 buf_T * 2385 buflist_findname_exp(char_u *fname) 2386 { 2387 char_u *ffname; 2388 buf_T *buf = NULL; 2389 2390 /* First make the name into a full path name */ 2391 ffname = FullName_save(fname, 2392 #ifdef UNIX 2393 TRUE /* force expansion, get rid of symbolic links */ 2394 #else 2395 FALSE 2396 #endif 2397 ); 2398 if (ffname != NULL) 2399 { 2400 buf = buflist_findname(ffname); 2401 vim_free(ffname); 2402 } 2403 return buf; 2404 } 2405 #endif 2406 2407 /* 2408 * Find file in buffer list by name (it has to be for the current window). 2409 * "ffname" must have a full path. 2410 * Skips dummy buffers. 2411 * Returns NULL if not found. 2412 */ 2413 buf_T * 2414 buflist_findname(char_u *ffname) 2415 { 2416 #ifdef UNIX 2417 stat_T st; 2418 2419 if (mch_stat((char *)ffname, &st) < 0) 2420 st.st_dev = (dev_T)-1; 2421 return buflist_findname_stat(ffname, &st); 2422 } 2423 2424 /* 2425 * Same as buflist_findname(), but pass the stat structure to avoid getting it 2426 * twice for the same file. 2427 * Returns NULL if not found. 2428 */ 2429 static buf_T * 2430 buflist_findname_stat( 2431 char_u *ffname, 2432 stat_T *stp) 2433 { 2434 #endif 2435 buf_T *buf; 2436 2437 /* Start at the last buffer, expect to find a match sooner. */ 2438 for (buf = lastbuf; buf != NULL; buf = buf->b_prev) 2439 if ((buf->b_flags & BF_DUMMY) == 0 && !otherfile_buf(buf, ffname 2440 #ifdef UNIX 2441 , stp 2442 #endif 2443 )) 2444 return buf; 2445 return NULL; 2446 } 2447 2448 /* 2449 * Find file in buffer list by a regexp pattern. 2450 * Return fnum of the found buffer. 2451 * Return < 0 for error. 2452 */ 2453 int 2454 buflist_findpat( 2455 char_u *pattern, 2456 char_u *pattern_end, /* pointer to first char after pattern */ 2457 int unlisted, /* find unlisted buffers */ 2458 int diffmode UNUSED, /* find diff-mode buffers only */ 2459 int curtab_only) /* find buffers in current tab only */ 2460 { 2461 buf_T *buf; 2462 int match = -1; 2463 int find_listed; 2464 char_u *pat; 2465 char_u *patend; 2466 int attempt; 2467 char_u *p; 2468 int toggledollar; 2469 2470 if (pattern_end == pattern + 1 && (*pattern == '%' || *pattern == '#')) 2471 { 2472 if (*pattern == '%') 2473 match = curbuf->b_fnum; 2474 else 2475 match = curwin->w_alt_fnum; 2476 #ifdef FEAT_DIFF 2477 if (diffmode && !diff_mode_buf(buflist_findnr(match))) 2478 match = -1; 2479 #endif 2480 } 2481 2482 /* 2483 * Try four ways of matching a listed buffer: 2484 * attempt == 0: without '^' or '$' (at any position) 2485 * attempt == 1: with '^' at start (only at position 0) 2486 * attempt == 2: with '$' at end (only match at end) 2487 * attempt == 3: with '^' at start and '$' at end (only full match) 2488 * Repeat this for finding an unlisted buffer if there was no matching 2489 * listed buffer. 2490 */ 2491 else 2492 { 2493 pat = file_pat_to_reg_pat(pattern, pattern_end, NULL, FALSE); 2494 if (pat == NULL) 2495 return -1; 2496 patend = pat + STRLEN(pat) - 1; 2497 toggledollar = (patend > pat && *patend == '$'); 2498 2499 /* First try finding a listed buffer. If not found and "unlisted" 2500 * is TRUE, try finding an unlisted buffer. */ 2501 find_listed = TRUE; 2502 for (;;) 2503 { 2504 for (attempt = 0; attempt <= 3; ++attempt) 2505 { 2506 regmatch_T regmatch; 2507 2508 /* may add '^' and '$' */ 2509 if (toggledollar) 2510 *patend = (attempt < 2) ? NUL : '$'; /* add/remove '$' */ 2511 p = pat; 2512 if (*p == '^' && !(attempt & 1)) /* add/remove '^' */ 2513 ++p; 2514 regmatch.regprog = vim_regcomp(p, p_magic ? RE_MAGIC : 0); 2515 if (regmatch.regprog == NULL) 2516 { 2517 vim_free(pat); 2518 return -1; 2519 } 2520 2521 for (buf = lastbuf; buf != NULL; buf = buf->b_prev) 2522 if (buf->b_p_bl == find_listed 2523 #ifdef FEAT_DIFF 2524 && (!diffmode || diff_mode_buf(buf)) 2525 #endif 2526 && buflist_match(®match, buf, FALSE) != NULL) 2527 { 2528 if (curtab_only) 2529 { 2530 /* Ignore the match if the buffer is not open in 2531 * the current tab. */ 2532 win_T *wp; 2533 2534 FOR_ALL_WINDOWS(wp) 2535 if (wp->w_buffer == buf) 2536 break; 2537 if (wp == NULL) 2538 continue; 2539 } 2540 if (match >= 0) /* already found a match */ 2541 { 2542 match = -2; 2543 break; 2544 } 2545 match = buf->b_fnum; /* remember first match */ 2546 } 2547 2548 vim_regfree(regmatch.regprog); 2549 if (match >= 0) /* found one match */ 2550 break; 2551 } 2552 2553 /* Only search for unlisted buffers if there was no match with 2554 * a listed buffer. */ 2555 if (!unlisted || !find_listed || match != -1) 2556 break; 2557 find_listed = FALSE; 2558 } 2559 2560 vim_free(pat); 2561 } 2562 2563 if (match == -2) 2564 semsg(_("E93: More than one match for %s"), pattern); 2565 else if (match < 0) 2566 semsg(_("E94: No matching buffer for %s"), pattern); 2567 return match; 2568 } 2569 2570 #if defined(FEAT_CMDL_COMPL) || defined(PROTO) 2571 2572 /* 2573 * Find all buffer names that match. 2574 * For command line expansion of ":buf" and ":sbuf". 2575 * Return OK if matches found, FAIL otherwise. 2576 */ 2577 int 2578 ExpandBufnames( 2579 char_u *pat, 2580 int *num_file, 2581 char_u ***file, 2582 int options) 2583 { 2584 int count = 0; 2585 buf_T *buf; 2586 int round; 2587 char_u *p; 2588 int attempt; 2589 char_u *patc; 2590 2591 *num_file = 0; /* return values in case of FAIL */ 2592 *file = NULL; 2593 2594 /* Make a copy of "pat" and change "^" to "\(^\|[\/]\)". */ 2595 if (*pat == '^') 2596 { 2597 patc = alloc(STRLEN(pat) + 11); 2598 if (patc == NULL) 2599 return FAIL; 2600 STRCPY(patc, "\\(^\\|[\\/]\\)"); 2601 STRCPY(patc + 11, pat + 1); 2602 } 2603 else 2604 patc = pat; 2605 2606 /* 2607 * attempt == 0: try match with '\<', match at start of word 2608 * attempt == 1: try match without '\<', match anywhere 2609 */ 2610 for (attempt = 0; attempt <= 1; ++attempt) 2611 { 2612 regmatch_T regmatch; 2613 2614 if (attempt > 0 && patc == pat) 2615 break; /* there was no anchor, no need to try again */ 2616 regmatch.regprog = vim_regcomp(patc + attempt * 11, RE_MAGIC); 2617 if (regmatch.regprog == NULL) 2618 { 2619 if (patc != pat) 2620 vim_free(patc); 2621 return FAIL; 2622 } 2623 2624 /* 2625 * round == 1: Count the matches. 2626 * round == 2: Build the array to keep the matches. 2627 */ 2628 for (round = 1; round <= 2; ++round) 2629 { 2630 count = 0; 2631 FOR_ALL_BUFFERS(buf) 2632 { 2633 if (!buf->b_p_bl) /* skip unlisted buffers */ 2634 continue; 2635 p = buflist_match(®match, buf, p_wic); 2636 if (p != NULL) 2637 { 2638 if (round == 1) 2639 ++count; 2640 else 2641 { 2642 if (options & WILD_HOME_REPLACE) 2643 p = home_replace_save(buf, p); 2644 else 2645 p = vim_strsave(p); 2646 (*file)[count++] = p; 2647 } 2648 } 2649 } 2650 if (count == 0) /* no match found, break here */ 2651 break; 2652 if (round == 1) 2653 { 2654 *file = ALLOC_MULT(char_u *, count); 2655 if (*file == NULL) 2656 { 2657 vim_regfree(regmatch.regprog); 2658 if (patc != pat) 2659 vim_free(patc); 2660 return FAIL; 2661 } 2662 } 2663 } 2664 vim_regfree(regmatch.regprog); 2665 if (count) /* match(es) found, break here */ 2666 break; 2667 } 2668 2669 if (patc != pat) 2670 vim_free(patc); 2671 2672 *num_file = count; 2673 return (count == 0 ? FAIL : OK); 2674 } 2675 2676 #endif /* FEAT_CMDL_COMPL */ 2677 2678 /* 2679 * Check for a match on the file name for buffer "buf" with regprog "prog". 2680 */ 2681 static char_u * 2682 buflist_match( 2683 regmatch_T *rmp, 2684 buf_T *buf, 2685 int ignore_case) /* when TRUE ignore case, when FALSE use 'fic' */ 2686 { 2687 char_u *match; 2688 2689 /* First try the short file name, then the long file name. */ 2690 match = fname_match(rmp, buf->b_sfname, ignore_case); 2691 if (match == NULL) 2692 match = fname_match(rmp, buf->b_ffname, ignore_case); 2693 2694 return match; 2695 } 2696 2697 /* 2698 * Try matching the regexp in "prog" with file name "name". 2699 * Return "name" when there is a match, NULL when not. 2700 */ 2701 static char_u * 2702 fname_match( 2703 regmatch_T *rmp, 2704 char_u *name, 2705 int ignore_case) /* when TRUE ignore case, when FALSE use 'fic' */ 2706 { 2707 char_u *match = NULL; 2708 char_u *p; 2709 2710 if (name != NULL) 2711 { 2712 /* Ignore case when 'fileignorecase' or the argument is set. */ 2713 rmp->rm_ic = p_fic || ignore_case; 2714 if (vim_regexec(rmp, name, (colnr_T)0)) 2715 match = name; 2716 else 2717 { 2718 /* Replace $(HOME) with '~' and try matching again. */ 2719 p = home_replace_save(NULL, name); 2720 if (p != NULL && vim_regexec(rmp, p, (colnr_T)0)) 2721 match = name; 2722 vim_free(p); 2723 } 2724 } 2725 2726 return match; 2727 } 2728 2729 /* 2730 * Find a file in the buffer list by buffer number. 2731 */ 2732 buf_T * 2733 buflist_findnr(int nr) 2734 { 2735 char_u key[VIM_SIZEOF_INT * 2 + 1]; 2736 hashitem_T *hi; 2737 2738 if (nr == 0) 2739 nr = curwin->w_alt_fnum; 2740 sprintf((char *)key, "%x", nr); 2741 hi = hash_find(&buf_hashtab, key); 2742 2743 if (!HASHITEM_EMPTY(hi)) 2744 return (buf_T *)(hi->hi_key 2745 - ((unsigned)(curbuf->b_key - (char_u *)curbuf))); 2746 return NULL; 2747 } 2748 2749 /* 2750 * Get name of file 'n' in the buffer list. 2751 * When the file has no name an empty string is returned. 2752 * home_replace() is used to shorten the file name (used for marks). 2753 * Returns a pointer to allocated memory, of NULL when failed. 2754 */ 2755 char_u * 2756 buflist_nr2name( 2757 int n, 2758 int fullname, 2759 int helptail) /* for help buffers return tail only */ 2760 { 2761 buf_T *buf; 2762 2763 buf = buflist_findnr(n); 2764 if (buf == NULL) 2765 return NULL; 2766 return home_replace_save(helptail ? buf : NULL, 2767 fullname ? buf->b_ffname : buf->b_fname); 2768 } 2769 2770 /* 2771 * Set the "lnum" and "col" for the buffer "buf" and the current window. 2772 * When "copy_options" is TRUE save the local window option values. 2773 * When "lnum" is 0 only do the options. 2774 */ 2775 void 2776 buflist_setfpos( 2777 buf_T *buf, 2778 win_T *win, 2779 linenr_T lnum, 2780 colnr_T col, 2781 int copy_options) 2782 { 2783 wininfo_T *wip; 2784 2785 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2786 if (wip->wi_win == win) 2787 break; 2788 if (wip == NULL) 2789 { 2790 /* allocate a new entry */ 2791 wip = ALLOC_CLEAR_ONE(wininfo_T); 2792 if (wip == NULL) 2793 return; 2794 wip->wi_win = win; 2795 if (lnum == 0) /* set lnum even when it's 0 */ 2796 lnum = 1; 2797 } 2798 else 2799 { 2800 /* remove the entry from the list */ 2801 if (wip->wi_prev) 2802 wip->wi_prev->wi_next = wip->wi_next; 2803 else 2804 buf->b_wininfo = wip->wi_next; 2805 if (wip->wi_next) 2806 wip->wi_next->wi_prev = wip->wi_prev; 2807 if (copy_options && wip->wi_optset) 2808 { 2809 clear_winopt(&wip->wi_opt); 2810 #ifdef FEAT_FOLDING 2811 deleteFoldRecurse(&wip->wi_folds); 2812 #endif 2813 } 2814 } 2815 if (lnum != 0) 2816 { 2817 wip->wi_fpos.lnum = lnum; 2818 wip->wi_fpos.col = col; 2819 } 2820 if (copy_options) 2821 { 2822 /* Save the window-specific option values. */ 2823 copy_winopt(&win->w_onebuf_opt, &wip->wi_opt); 2824 #ifdef FEAT_FOLDING 2825 wip->wi_fold_manual = win->w_fold_manual; 2826 cloneFoldGrowArray(&win->w_folds, &wip->wi_folds); 2827 #endif 2828 wip->wi_optset = TRUE; 2829 } 2830 2831 /* insert the entry in front of the list */ 2832 wip->wi_next = buf->b_wininfo; 2833 buf->b_wininfo = wip; 2834 wip->wi_prev = NULL; 2835 if (wip->wi_next) 2836 wip->wi_next->wi_prev = wip; 2837 2838 return; 2839 } 2840 2841 #ifdef FEAT_DIFF 2842 /* 2843 * Return TRUE when "wip" has 'diff' set and the diff is only for another tab 2844 * page. That's because a diff is local to a tab page. 2845 */ 2846 static int 2847 wininfo_other_tab_diff(wininfo_T *wip) 2848 { 2849 win_T *wp; 2850 2851 if (wip->wi_opt.wo_diff) 2852 { 2853 FOR_ALL_WINDOWS(wp) 2854 /* return FALSE when it's a window in the current tab page, thus 2855 * the buffer was in diff mode here */ 2856 if (wip->wi_win == wp) 2857 return FALSE; 2858 return TRUE; 2859 } 2860 return FALSE; 2861 } 2862 #endif 2863 2864 /* 2865 * Find info for the current window in buffer "buf". 2866 * If not found, return the info for the most recently used window. 2867 * When "skip_diff_buffer" is TRUE avoid windows with 'diff' set that is in 2868 * another tab page. 2869 * Returns NULL when there isn't any info. 2870 */ 2871 static wininfo_T * 2872 find_wininfo( 2873 buf_T *buf, 2874 int skip_diff_buffer UNUSED) 2875 { 2876 wininfo_T *wip; 2877 2878 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2879 if (wip->wi_win == curwin 2880 #ifdef FEAT_DIFF 2881 && (!skip_diff_buffer || !wininfo_other_tab_diff(wip)) 2882 #endif 2883 ) 2884 break; 2885 2886 /* If no wininfo for curwin, use the first in the list (that doesn't have 2887 * 'diff' set and is in another tab page). */ 2888 if (wip == NULL) 2889 { 2890 #ifdef FEAT_DIFF 2891 if (skip_diff_buffer) 2892 { 2893 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2894 if (!wininfo_other_tab_diff(wip)) 2895 break; 2896 } 2897 else 2898 #endif 2899 wip = buf->b_wininfo; 2900 } 2901 return wip; 2902 } 2903 2904 /* 2905 * Reset the local window options to the values last used in this window. 2906 * If the buffer wasn't used in this window before, use the values from 2907 * the most recently used window. If the values were never set, use the 2908 * global values for the window. 2909 */ 2910 void 2911 get_winopts(buf_T *buf) 2912 { 2913 wininfo_T *wip; 2914 2915 clear_winopt(&curwin->w_onebuf_opt); 2916 #ifdef FEAT_FOLDING 2917 clearFolding(curwin); 2918 #endif 2919 2920 wip = find_wininfo(buf, TRUE); 2921 if (wip != NULL && wip->wi_win != NULL 2922 && wip->wi_win != curwin && wip->wi_win->w_buffer == buf) 2923 { 2924 /* The buffer is currently displayed in the window: use the actual 2925 * option values instead of the saved (possibly outdated) values. */ 2926 win_T *wp = wip->wi_win; 2927 2928 copy_winopt(&wp->w_onebuf_opt, &curwin->w_onebuf_opt); 2929 #ifdef FEAT_FOLDING 2930 curwin->w_fold_manual = wp->w_fold_manual; 2931 curwin->w_foldinvalid = TRUE; 2932 cloneFoldGrowArray(&wp->w_folds, &curwin->w_folds); 2933 #endif 2934 } 2935 else if (wip != NULL && wip->wi_optset) 2936 { 2937 /* the buffer was displayed in the current window earlier */ 2938 copy_winopt(&wip->wi_opt, &curwin->w_onebuf_opt); 2939 #ifdef FEAT_FOLDING 2940 curwin->w_fold_manual = wip->wi_fold_manual; 2941 curwin->w_foldinvalid = TRUE; 2942 cloneFoldGrowArray(&wip->wi_folds, &curwin->w_folds); 2943 #endif 2944 } 2945 else 2946 copy_winopt(&curwin->w_allbuf_opt, &curwin->w_onebuf_opt); 2947 2948 #ifdef FEAT_FOLDING 2949 /* Set 'foldlevel' to 'foldlevelstart' if it's not negative. */ 2950 if (p_fdls >= 0) 2951 curwin->w_p_fdl = p_fdls; 2952 #endif 2953 #ifdef FEAT_SYN_HL 2954 check_colorcolumn(curwin); 2955 #endif 2956 } 2957 2958 /* 2959 * Find the position (lnum and col) for the buffer 'buf' for the current 2960 * window. 2961 * Returns a pointer to no_position if no position is found. 2962 */ 2963 pos_T * 2964 buflist_findfpos(buf_T *buf) 2965 { 2966 wininfo_T *wip; 2967 static pos_T no_position = {1, 0, 0}; 2968 2969 wip = find_wininfo(buf, FALSE); 2970 if (wip != NULL) 2971 return &(wip->wi_fpos); 2972 else 2973 return &no_position; 2974 } 2975 2976 /* 2977 * Find the lnum for the buffer 'buf' for the current window. 2978 */ 2979 linenr_T 2980 buflist_findlnum(buf_T *buf) 2981 { 2982 return buflist_findfpos(buf)->lnum; 2983 } 2984 2985 /* 2986 * List all known file names (for :files and :buffers command). 2987 */ 2988 void 2989 buflist_list(exarg_T *eap) 2990 { 2991 buf_T *buf; 2992 int len; 2993 int i; 2994 int ro_char; 2995 int changed_char; 2996 #ifdef FEAT_TERMINAL 2997 int job_running; 2998 int job_none_open; 2999 #endif 3000 3001 for (buf = firstbuf; buf != NULL && !got_int; buf = buf->b_next) 3002 { 3003 #ifdef FEAT_TERMINAL 3004 job_running = term_job_running(buf->b_term); 3005 job_none_open = job_running && term_none_open(buf->b_term); 3006 #endif 3007 /* skip unlisted buffers, unless ! was used */ 3008 if ((!buf->b_p_bl && !eap->forceit && !vim_strchr(eap->arg, 'u')) 3009 || (vim_strchr(eap->arg, 'u') && buf->b_p_bl) 3010 || (vim_strchr(eap->arg, '+') 3011 && ((buf->b_flags & BF_READERR) || !bufIsChanged(buf))) 3012 || (vim_strchr(eap->arg, 'a') 3013 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows == 0)) 3014 || (vim_strchr(eap->arg, 'h') 3015 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows != 0)) 3016 #ifdef FEAT_TERMINAL 3017 || (vim_strchr(eap->arg, 'R') 3018 && (!job_running || (job_running && job_none_open))) 3019 || (vim_strchr(eap->arg, '?') 3020 && (!job_running || (job_running && !job_none_open))) 3021 || (vim_strchr(eap->arg, 'F') 3022 && (job_running || buf->b_term == NULL)) 3023 #endif 3024 || (vim_strchr(eap->arg, '-') && buf->b_p_ma) 3025 || (vim_strchr(eap->arg, '=') && !buf->b_p_ro) 3026 || (vim_strchr(eap->arg, 'x') && !(buf->b_flags & BF_READERR)) 3027 || (vim_strchr(eap->arg, '%') && buf != curbuf) 3028 || (vim_strchr(eap->arg, '#') 3029 && (buf == curbuf || curwin->w_alt_fnum != buf->b_fnum))) 3030 continue; 3031 if (buf_spname(buf) != NULL) 3032 vim_strncpy(NameBuff, buf_spname(buf), MAXPATHL - 1); 3033 else 3034 home_replace(buf, buf->b_fname, NameBuff, MAXPATHL, TRUE); 3035 if (message_filtered(NameBuff)) 3036 continue; 3037 3038 changed_char = (buf->b_flags & BF_READERR) ? 'x' 3039 : (bufIsChanged(buf) ? '+' : ' '); 3040 #ifdef FEAT_TERMINAL 3041 if (term_job_running(buf->b_term)) 3042 { 3043 if (term_none_open(buf->b_term)) 3044 ro_char = '?'; 3045 else 3046 ro_char = 'R'; 3047 changed_char = ' '; /* bufIsChanged() returns TRUE to avoid 3048 * closing, but it's not actually changed. */ 3049 } 3050 else if (buf->b_term != NULL) 3051 ro_char = 'F'; 3052 else 3053 #endif 3054 ro_char = !buf->b_p_ma ? '-' : (buf->b_p_ro ? '=' : ' '); 3055 3056 msg_putchar('\n'); 3057 len = vim_snprintf((char *)IObuff, IOSIZE - 20, "%3d%c%c%c%c%c \"%s\"", 3058 buf->b_fnum, 3059 buf->b_p_bl ? ' ' : 'u', 3060 buf == curbuf ? '%' : 3061 (curwin->w_alt_fnum == buf->b_fnum ? '#' : ' '), 3062 buf->b_ml.ml_mfp == NULL ? ' ' : 3063 (buf->b_nwindows == 0 ? 'h' : 'a'), 3064 ro_char, 3065 changed_char, 3066 NameBuff); 3067 if (len > IOSIZE - 20) 3068 len = IOSIZE - 20; 3069 3070 /* put "line 999" in column 40 or after the file name */ 3071 i = 40 - vim_strsize(IObuff); 3072 do 3073 IObuff[len++] = ' '; 3074 while (--i > 0 && len < IOSIZE - 18); 3075 vim_snprintf((char *)IObuff + len, (size_t)(IOSIZE - len), 3076 _("line %ld"), buf == curbuf ? curwin->w_cursor.lnum 3077 : (long)buflist_findlnum(buf)); 3078 msg_outtrans(IObuff); 3079 out_flush(); /* output one line at a time */ 3080 ui_breakcheck(); 3081 } 3082 } 3083 3084 /* 3085 * Get file name and line number for file 'fnum'. 3086 * Used by DoOneCmd() for translating '%' and '#'. 3087 * Used by insert_reg() and cmdline_paste() for '#' register. 3088 * Return FAIL if not found, OK for success. 3089 */ 3090 int 3091 buflist_name_nr( 3092 int fnum, 3093 char_u **fname, 3094 linenr_T *lnum) 3095 { 3096 buf_T *buf; 3097 3098 buf = buflist_findnr(fnum); 3099 if (buf == NULL || buf->b_fname == NULL) 3100 return FAIL; 3101 3102 *fname = buf->b_fname; 3103 *lnum = buflist_findlnum(buf); 3104 3105 return OK; 3106 } 3107 3108 /* 3109 * Set the file name for "buf"' to "ffname_arg", short file name to 3110 * "sfname_arg". 3111 * The file name with the full path is also remembered, for when :cd is used. 3112 * Returns FAIL for failure (file name already in use by other buffer) 3113 * OK otherwise. 3114 */ 3115 int 3116 setfname( 3117 buf_T *buf, 3118 char_u *ffname_arg, 3119 char_u *sfname_arg, 3120 int message) /* give message when buffer already exists */ 3121 { 3122 char_u *ffname = ffname_arg; 3123 char_u *sfname = sfname_arg; 3124 buf_T *obuf = NULL; 3125 #ifdef UNIX 3126 stat_T st; 3127 #endif 3128 3129 if (ffname == NULL || *ffname == NUL) 3130 { 3131 /* Removing the name. */ 3132 if (buf->b_sfname != buf->b_ffname) 3133 VIM_CLEAR(buf->b_sfname); 3134 else 3135 buf->b_sfname = NULL; 3136 VIM_CLEAR(buf->b_ffname); 3137 #ifdef UNIX 3138 st.st_dev = (dev_T)-1; 3139 #endif 3140 } 3141 else 3142 { 3143 fname_expand(buf, &ffname, &sfname); /* will allocate ffname */ 3144 if (ffname == NULL) /* out of memory */ 3145 return FAIL; 3146 3147 /* 3148 * if the file name is already used in another buffer: 3149 * - if the buffer is loaded, fail 3150 * - if the buffer is not loaded, delete it from the list 3151 */ 3152 #ifdef UNIX 3153 if (mch_stat((char *)ffname, &st) < 0) 3154 st.st_dev = (dev_T)-1; 3155 #endif 3156 if (!(buf->b_flags & BF_DUMMY)) 3157 #ifdef UNIX 3158 obuf = buflist_findname_stat(ffname, &st); 3159 #else 3160 obuf = buflist_findname(ffname); 3161 #endif 3162 if (obuf != NULL && obuf != buf) 3163 { 3164 if (obuf->b_ml.ml_mfp != NULL) /* it's loaded, fail */ 3165 { 3166 if (message) 3167 emsg(_("E95: Buffer with this name already exists")); 3168 vim_free(ffname); 3169 return FAIL; 3170 } 3171 /* delete from the list */ 3172 close_buffer(NULL, obuf, DOBUF_WIPE, FALSE); 3173 } 3174 sfname = vim_strsave(sfname); 3175 if (ffname == NULL || sfname == NULL) 3176 { 3177 vim_free(sfname); 3178 vim_free(ffname); 3179 return FAIL; 3180 } 3181 #ifdef USE_FNAME_CASE 3182 fname_case(sfname, 0); /* set correct case for short file name */ 3183 #endif 3184 if (buf->b_sfname != buf->b_ffname) 3185 vim_free(buf->b_sfname); 3186 vim_free(buf->b_ffname); 3187 buf->b_ffname = ffname; 3188 buf->b_sfname = sfname; 3189 } 3190 buf->b_fname = buf->b_sfname; 3191 #ifdef UNIX 3192 if (st.st_dev == (dev_T)-1) 3193 buf->b_dev_valid = FALSE; 3194 else 3195 { 3196 buf->b_dev_valid = TRUE; 3197 buf->b_dev = st.st_dev; 3198 buf->b_ino = st.st_ino; 3199 } 3200 #endif 3201 3202 buf->b_shortname = FALSE; 3203 3204 buf_name_changed(buf); 3205 return OK; 3206 } 3207 3208 /* 3209 * Crude way of changing the name of a buffer. Use with care! 3210 * The name should be relative to the current directory. 3211 */ 3212 void 3213 buf_set_name(int fnum, char_u *name) 3214 { 3215 buf_T *buf; 3216 3217 buf = buflist_findnr(fnum); 3218 if (buf != NULL) 3219 { 3220 if (buf->b_sfname != buf->b_ffname) 3221 vim_free(buf->b_sfname); 3222 vim_free(buf->b_ffname); 3223 buf->b_ffname = vim_strsave(name); 3224 buf->b_sfname = NULL; 3225 /* Allocate ffname and expand into full path. Also resolves .lnk 3226 * files on Win32. */ 3227 fname_expand(buf, &buf->b_ffname, &buf->b_sfname); 3228 buf->b_fname = buf->b_sfname; 3229 } 3230 } 3231 3232 /* 3233 * Take care of what needs to be done when the name of buffer "buf" has 3234 * changed. 3235 */ 3236 void 3237 buf_name_changed(buf_T *buf) 3238 { 3239 /* 3240 * If the file name changed, also change the name of the swapfile 3241 */ 3242 if (buf->b_ml.ml_mfp != NULL) 3243 ml_setname(buf); 3244 3245 if (curwin->w_buffer == buf) 3246 check_arg_idx(curwin); /* check file name for arg list */ 3247 #ifdef FEAT_TITLE 3248 maketitle(); /* set window title */ 3249 #endif 3250 status_redraw_all(); /* status lines need to be redrawn */ 3251 fmarks_check_names(buf); /* check named file marks */ 3252 ml_timestamp(buf); /* reset timestamp */ 3253 } 3254 3255 /* 3256 * set alternate file name for current window 3257 * 3258 * Used by do_one_cmd(), do_write() and do_ecmd(). 3259 * Return the buffer. 3260 */ 3261 buf_T * 3262 setaltfname( 3263 char_u *ffname, 3264 char_u *sfname, 3265 linenr_T lnum) 3266 { 3267 buf_T *buf; 3268 3269 /* Create a buffer. 'buflisted' is not set if it's a new buffer */ 3270 buf = buflist_new(ffname, sfname, lnum, 0); 3271 if (buf != NULL && !cmdmod.keepalt) 3272 curwin->w_alt_fnum = buf->b_fnum; 3273 return buf; 3274 } 3275 3276 /* 3277 * Get alternate file name for current window. 3278 * Return NULL if there isn't any, and give error message if requested. 3279 */ 3280 char_u * 3281 getaltfname( 3282 int errmsg) /* give error message */ 3283 { 3284 char_u *fname; 3285 linenr_T dummy; 3286 3287 if (buflist_name_nr(0, &fname, &dummy) == FAIL) 3288 { 3289 if (errmsg) 3290 emsg(_(e_noalt)); 3291 return NULL; 3292 } 3293 return fname; 3294 } 3295 3296 /* 3297 * Add a file name to the buflist and return its number. 3298 * Uses same flags as buflist_new(), except BLN_DUMMY. 3299 * 3300 * used by qf_init(), main() and doarglist() 3301 */ 3302 int 3303 buflist_add(char_u *fname, int flags) 3304 { 3305 buf_T *buf; 3306 3307 buf = buflist_new(fname, NULL, (linenr_T)0, flags); 3308 if (buf != NULL) 3309 return buf->b_fnum; 3310 return 0; 3311 } 3312 3313 #if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) 3314 /* 3315 * Adjust slashes in file names. Called after 'shellslash' was set. 3316 */ 3317 void 3318 buflist_slash_adjust(void) 3319 { 3320 buf_T *bp; 3321 3322 FOR_ALL_BUFFERS(bp) 3323 { 3324 if (bp->b_ffname != NULL) 3325 slash_adjust(bp->b_ffname); 3326 if (bp->b_sfname != NULL) 3327 slash_adjust(bp->b_sfname); 3328 } 3329 } 3330 #endif 3331 3332 /* 3333 * Set alternate cursor position for the current buffer and window "win". 3334 * Also save the local window option values. 3335 */ 3336 void 3337 buflist_altfpos(win_T *win) 3338 { 3339 buflist_setfpos(curbuf, win, win->w_cursor.lnum, win->w_cursor.col, TRUE); 3340 } 3341 3342 /* 3343 * Return TRUE if 'ffname' is not the same file as current file. 3344 * Fname must have a full path (expanded by mch_FullName()). 3345 */ 3346 int 3347 otherfile(char_u *ffname) 3348 { 3349 return otherfile_buf(curbuf, ffname 3350 #ifdef UNIX 3351 , NULL 3352 #endif 3353 ); 3354 } 3355 3356 static int 3357 otherfile_buf( 3358 buf_T *buf, 3359 char_u *ffname 3360 #ifdef UNIX 3361 , stat_T *stp 3362 #endif 3363 ) 3364 { 3365 /* no name is different */ 3366 if (ffname == NULL || *ffname == NUL || buf->b_ffname == NULL) 3367 return TRUE; 3368 if (fnamecmp(ffname, buf->b_ffname) == 0) 3369 return FALSE; 3370 #ifdef UNIX 3371 { 3372 stat_T st; 3373 3374 /* If no stat_T given, get it now */ 3375 if (stp == NULL) 3376 { 3377 if (!buf->b_dev_valid || mch_stat((char *)ffname, &st) < 0) 3378 st.st_dev = (dev_T)-1; 3379 stp = &st; 3380 } 3381 /* Use dev/ino to check if the files are the same, even when the names 3382 * are different (possible with links). Still need to compare the 3383 * name above, for when the file doesn't exist yet. 3384 * Problem: The dev/ino changes when a file is deleted (and created 3385 * again) and remains the same when renamed/moved. We don't want to 3386 * mch_stat() each buffer each time, that would be too slow. Get the 3387 * dev/ino again when they appear to match, but not when they appear 3388 * to be different: Could skip a buffer when it's actually the same 3389 * file. */ 3390 if (buf_same_ino(buf, stp)) 3391 { 3392 buf_setino(buf); 3393 if (buf_same_ino(buf, stp)) 3394 return FALSE; 3395 } 3396 } 3397 #endif 3398 return TRUE; 3399 } 3400 3401 #if defined(UNIX) || defined(PROTO) 3402 /* 3403 * Set inode and device number for a buffer. 3404 * Must always be called when b_fname is changed!. 3405 */ 3406 void 3407 buf_setino(buf_T *buf) 3408 { 3409 stat_T st; 3410 3411 if (buf->b_fname != NULL && mch_stat((char *)buf->b_fname, &st) >= 0) 3412 { 3413 buf->b_dev_valid = TRUE; 3414 buf->b_dev = st.st_dev; 3415 buf->b_ino = st.st_ino; 3416 } 3417 else 3418 buf->b_dev_valid = FALSE; 3419 } 3420 3421 /* 3422 * Return TRUE if dev/ino in buffer "buf" matches with "stp". 3423 */ 3424 static int 3425 buf_same_ino( 3426 buf_T *buf, 3427 stat_T *stp) 3428 { 3429 return (buf->b_dev_valid 3430 && stp->st_dev == buf->b_dev 3431 && stp->st_ino == buf->b_ino); 3432 } 3433 #endif 3434 3435 /* 3436 * Print info about the current buffer. 3437 */ 3438 void 3439 fileinfo( 3440 int fullname, /* when non-zero print full path */ 3441 int shorthelp, 3442 int dont_truncate) 3443 { 3444 char_u *name; 3445 int n; 3446 char *p; 3447 char *buffer; 3448 size_t len; 3449 3450 buffer = alloc(IOSIZE); 3451 if (buffer == NULL) 3452 return; 3453 3454 if (fullname > 1) /* 2 CTRL-G: include buffer number */ 3455 { 3456 vim_snprintf(buffer, IOSIZE, "buf %d: ", curbuf->b_fnum); 3457 p = buffer + STRLEN(buffer); 3458 } 3459 else 3460 p = buffer; 3461 3462 *p++ = '"'; 3463 if (buf_spname(curbuf) != NULL) 3464 vim_strncpy((char_u *)p, buf_spname(curbuf), IOSIZE - (p - buffer) - 1); 3465 else 3466 { 3467 if (!fullname && curbuf->b_fname != NULL) 3468 name = curbuf->b_fname; 3469 else 3470 name = curbuf->b_ffname; 3471 home_replace(shorthelp ? curbuf : NULL, name, (char_u *)p, 3472 (int)(IOSIZE - (p - buffer)), TRUE); 3473 } 3474 3475 vim_snprintf_add(buffer, IOSIZE, "\"%s%s%s%s%s%s", 3476 curbufIsChanged() ? (shortmess(SHM_MOD) 3477 ? " [+]" : _(" [Modified]")) : " ", 3478 (curbuf->b_flags & BF_NOTEDITED) 3479 #ifdef FEAT_QUICKFIX 3480 && !bt_dontwrite(curbuf) 3481 #endif 3482 ? _("[Not edited]") : "", 3483 (curbuf->b_flags & BF_NEW) 3484 #ifdef FEAT_QUICKFIX 3485 && !bt_dontwrite(curbuf) 3486 #endif 3487 ? _("[New file]") : "", 3488 (curbuf->b_flags & BF_READERR) ? _("[Read errors]") : "", 3489 curbuf->b_p_ro ? (shortmess(SHM_RO) ? _("[RO]") 3490 : _("[readonly]")) : "", 3491 (curbufIsChanged() || (curbuf->b_flags & BF_WRITE_MASK) 3492 || curbuf->b_p_ro) ? 3493 " " : ""); 3494 /* With 32 bit longs and more than 21,474,836 lines multiplying by 100 3495 * causes an overflow, thus for large numbers divide instead. */ 3496 if (curwin->w_cursor.lnum > 1000000L) 3497 n = (int)(((long)curwin->w_cursor.lnum) / 3498 ((long)curbuf->b_ml.ml_line_count / 100L)); 3499 else 3500 n = (int)(((long)curwin->w_cursor.lnum * 100L) / 3501 (long)curbuf->b_ml.ml_line_count); 3502 if (curbuf->b_ml.ml_flags & ML_EMPTY) 3503 vim_snprintf_add(buffer, IOSIZE, "%s", _(no_lines_msg)); 3504 #ifdef FEAT_CMDL_INFO 3505 else if (p_ru) 3506 /* Current line and column are already on the screen -- webb */ 3507 vim_snprintf_add(buffer, IOSIZE, 3508 NGETTEXT("%ld line --%d%%--", "%ld lines --%d%%--", 3509 curbuf->b_ml.ml_line_count), 3510 (long)curbuf->b_ml.ml_line_count, n); 3511 #endif 3512 else 3513 { 3514 vim_snprintf_add(buffer, IOSIZE, 3515 _("line %ld of %ld --%d%%-- col "), 3516 (long)curwin->w_cursor.lnum, 3517 (long)curbuf->b_ml.ml_line_count, 3518 n); 3519 validate_virtcol(); 3520 len = STRLEN(buffer); 3521 col_print((char_u *)buffer + len, IOSIZE - len, 3522 (int)curwin->w_cursor.col + 1, (int)curwin->w_virtcol + 1); 3523 } 3524 3525 (void)append_arg_number(curwin, (char_u *)buffer, IOSIZE, 3526 !shortmess(SHM_FILE)); 3527 3528 if (dont_truncate) 3529 { 3530 /* Temporarily set msg_scroll to avoid the message being truncated. 3531 * First call msg_start() to get the message in the right place. */ 3532 msg_start(); 3533 n = msg_scroll; 3534 msg_scroll = TRUE; 3535 msg(buffer); 3536 msg_scroll = n; 3537 } 3538 else 3539 { 3540 p = (char *)msg_trunc_attr(buffer, FALSE, 0); 3541 if (restart_edit != 0 || (msg_scrolled && !need_wait_return)) 3542 /* Need to repeat the message after redrawing when: 3543 * - When restart_edit is set (otherwise there will be a delay 3544 * before redrawing). 3545 * - When the screen was scrolled but there is no wait-return 3546 * prompt. */ 3547 set_keep_msg((char_u *)p, 0); 3548 } 3549 3550 vim_free(buffer); 3551 } 3552 3553 void 3554 col_print( 3555 char_u *buf, 3556 size_t buflen, 3557 int col, 3558 int vcol) 3559 { 3560 if (col == vcol) 3561 vim_snprintf((char *)buf, buflen, "%d", col); 3562 else 3563 vim_snprintf((char *)buf, buflen, "%d-%d", col, vcol); 3564 } 3565 3566 #if defined(FEAT_TITLE) || defined(PROTO) 3567 static char_u *lasttitle = NULL; 3568 static char_u *lasticon = NULL; 3569 3570 /* 3571 * Put the file name in the title bar and icon of the window. 3572 */ 3573 void 3574 maketitle(void) 3575 { 3576 char_u *p; 3577 char_u *title_str = NULL; 3578 char_u *icon_str = NULL; 3579 int maxlen = 0; 3580 int len; 3581 int mustset; 3582 char_u buf[IOSIZE]; 3583 int off; 3584 3585 if (!redrawing()) 3586 { 3587 /* Postpone updating the title when 'lazyredraw' is set. */ 3588 need_maketitle = TRUE; 3589 return; 3590 } 3591 3592 need_maketitle = FALSE; 3593 if (!p_title && !p_icon && lasttitle == NULL && lasticon == NULL) 3594 return; // nothing to do 3595 3596 if (p_title) 3597 { 3598 if (p_titlelen > 0) 3599 { 3600 maxlen = p_titlelen * Columns / 100; 3601 if (maxlen < 10) 3602 maxlen = 10; 3603 } 3604 3605 title_str = buf; 3606 if (*p_titlestring != NUL) 3607 { 3608 #ifdef FEAT_STL_OPT 3609 if (stl_syntax & STL_IN_TITLE) 3610 { 3611 int use_sandbox = FALSE; 3612 int save_called_emsg = called_emsg; 3613 3614 # ifdef FEAT_EVAL 3615 use_sandbox = was_set_insecurely((char_u *)"titlestring", 0); 3616 # endif 3617 called_emsg = FALSE; 3618 build_stl_str_hl(curwin, title_str, sizeof(buf), 3619 p_titlestring, use_sandbox, 3620 0, maxlen, NULL, NULL); 3621 if (called_emsg) 3622 set_string_option_direct((char_u *)"titlestring", -1, 3623 (char_u *)"", OPT_FREE, SID_ERROR); 3624 called_emsg |= save_called_emsg; 3625 } 3626 else 3627 #endif 3628 title_str = p_titlestring; 3629 } 3630 else 3631 { 3632 /* format: "fname + (path) (1 of 2) - VIM" */ 3633 3634 #define SPACE_FOR_FNAME (IOSIZE - 100) 3635 #define SPACE_FOR_DIR (IOSIZE - 20) 3636 #define SPACE_FOR_ARGNR (IOSIZE - 10) /* at least room for " - VIM" */ 3637 if (curbuf->b_fname == NULL) 3638 vim_strncpy(buf, (char_u *)_("[No Name]"), SPACE_FOR_FNAME); 3639 #ifdef FEAT_TERMINAL 3640 else if (curbuf->b_term != NULL) 3641 { 3642 vim_strncpy(buf, term_get_status_text(curbuf->b_term), 3643 SPACE_FOR_FNAME); 3644 } 3645 #endif 3646 else 3647 { 3648 p = transstr(gettail(curbuf->b_fname)); 3649 vim_strncpy(buf, p, SPACE_FOR_FNAME); 3650 vim_free(p); 3651 } 3652 3653 #ifdef FEAT_TERMINAL 3654 if (curbuf->b_term == NULL) 3655 #endif 3656 switch (bufIsChanged(curbuf) 3657 + (curbuf->b_p_ro * 2) 3658 + (!curbuf->b_p_ma * 4)) 3659 { 3660 case 1: STRCAT(buf, " +"); break; 3661 case 2: STRCAT(buf, " ="); break; 3662 case 3: STRCAT(buf, " =+"); break; 3663 case 4: 3664 case 6: STRCAT(buf, " -"); break; 3665 case 5: 3666 case 7: STRCAT(buf, " -+"); break; 3667 } 3668 3669 if (curbuf->b_fname != NULL 3670 #ifdef FEAT_TERMINAL 3671 && curbuf->b_term == NULL 3672 #endif 3673 ) 3674 { 3675 /* Get path of file, replace home dir with ~ */ 3676 off = (int)STRLEN(buf); 3677 buf[off++] = ' '; 3678 buf[off++] = '('; 3679 home_replace(curbuf, curbuf->b_ffname, 3680 buf + off, SPACE_FOR_DIR - off, TRUE); 3681 #ifdef BACKSLASH_IN_FILENAME 3682 /* avoid "c:/name" to be reduced to "c" */ 3683 if (isalpha(buf[off]) && buf[off + 1] == ':') 3684 off += 2; 3685 #endif 3686 /* remove the file name */ 3687 p = gettail_sep(buf + off); 3688 if (p == buf + off) 3689 { 3690 /* must be a help buffer */ 3691 vim_strncpy(buf + off, (char_u *)_("help"), 3692 (size_t)(SPACE_FOR_DIR - off - 1)); 3693 } 3694 else 3695 *p = NUL; 3696 3697 /* Translate unprintable chars and concatenate. Keep some 3698 * room for the server name. When there is no room (very long 3699 * file name) use (...). */ 3700 if (off < SPACE_FOR_DIR) 3701 { 3702 p = transstr(buf + off); 3703 vim_strncpy(buf + off, p, (size_t)(SPACE_FOR_DIR - off)); 3704 vim_free(p); 3705 } 3706 else 3707 { 3708 vim_strncpy(buf + off, (char_u *)"...", 3709 (size_t)(SPACE_FOR_ARGNR - off)); 3710 } 3711 STRCAT(buf, ")"); 3712 } 3713 3714 append_arg_number(curwin, buf, SPACE_FOR_ARGNR, FALSE); 3715 3716 #if defined(FEAT_CLIENTSERVER) 3717 if (serverName != NULL) 3718 { 3719 STRCAT(buf, " - "); 3720 vim_strcat(buf, serverName, IOSIZE); 3721 } 3722 else 3723 #endif 3724 STRCAT(buf, " - VIM"); 3725 3726 if (maxlen > 0) 3727 { 3728 /* make it shorter by removing a bit in the middle */ 3729 if (vim_strsize(buf) > maxlen) 3730 trunc_string(buf, buf, maxlen, IOSIZE); 3731 } 3732 } 3733 } 3734 mustset = value_changed(title_str, &lasttitle); 3735 3736 if (p_icon) 3737 { 3738 icon_str = buf; 3739 if (*p_iconstring != NUL) 3740 { 3741 #ifdef FEAT_STL_OPT 3742 if (stl_syntax & STL_IN_ICON) 3743 { 3744 int use_sandbox = FALSE; 3745 int save_called_emsg = called_emsg; 3746 3747 # ifdef FEAT_EVAL 3748 use_sandbox = was_set_insecurely((char_u *)"iconstring", 0); 3749 # endif 3750 called_emsg = FALSE; 3751 build_stl_str_hl(curwin, icon_str, sizeof(buf), 3752 p_iconstring, use_sandbox, 3753 0, 0, NULL, NULL); 3754 if (called_emsg) 3755 set_string_option_direct((char_u *)"iconstring", -1, 3756 (char_u *)"", OPT_FREE, SID_ERROR); 3757 called_emsg |= save_called_emsg; 3758 } 3759 else 3760 #endif 3761 icon_str = p_iconstring; 3762 } 3763 else 3764 { 3765 if (buf_spname(curbuf) != NULL) 3766 p = buf_spname(curbuf); 3767 else /* use file name only in icon */ 3768 p = gettail(curbuf->b_ffname); 3769 *icon_str = NUL; 3770 /* Truncate name at 100 bytes. */ 3771 len = (int)STRLEN(p); 3772 if (len > 100) 3773 { 3774 len -= 100; 3775 if (has_mbyte) 3776 len += (*mb_tail_off)(p, p + len) + 1; 3777 p += len; 3778 } 3779 STRCPY(icon_str, p); 3780 trans_characters(icon_str, IOSIZE); 3781 } 3782 } 3783 3784 mustset |= value_changed(icon_str, &lasticon); 3785 3786 if (mustset) 3787 resettitle(); 3788 } 3789 3790 /* 3791 * Used for title and icon: Check if "str" differs from "*last". Set "*last" 3792 * from "str" if it does. 3793 * Return TRUE if resettitle() is to be called. 3794 */ 3795 static int 3796 value_changed(char_u *str, char_u **last) 3797 { 3798 if ((str == NULL) != (*last == NULL) 3799 || (str != NULL && *last != NULL && STRCMP(str, *last) != 0)) 3800 { 3801 vim_free(*last); 3802 if (str == NULL) 3803 { 3804 *last = NULL; 3805 mch_restore_title( 3806 last == &lasttitle ? SAVE_RESTORE_TITLE : SAVE_RESTORE_ICON); 3807 } 3808 else 3809 { 3810 *last = vim_strsave(str); 3811 return TRUE; 3812 } 3813 } 3814 return FALSE; 3815 } 3816 3817 /* 3818 * Put current window title back (used after calling a shell) 3819 */ 3820 void 3821 resettitle(void) 3822 { 3823 mch_settitle(lasttitle, lasticon); 3824 } 3825 3826 # if defined(EXITFREE) || defined(PROTO) 3827 void 3828 free_titles(void) 3829 { 3830 vim_free(lasttitle); 3831 vim_free(lasticon); 3832 } 3833 # endif 3834 3835 #endif /* FEAT_TITLE */ 3836 3837 #if defined(FEAT_STL_OPT) || defined(FEAT_GUI_TABLINE) || defined(PROTO) 3838 /* 3839 * Build a string from the status line items in "fmt". 3840 * Return length of string in screen cells. 3841 * 3842 * Normally works for window "wp", except when working for 'tabline' then it 3843 * is "curwin". 3844 * 3845 * Items are drawn interspersed with the text that surrounds it 3846 * Specials: %-<wid>(xxx%) => group, %= => middle marker, %< => truncation 3847 * Item: %-<minwid>.<maxwid><itemch> All but <itemch> are optional 3848 * 3849 * If maxwidth is not zero, the string will be filled at any middle marker 3850 * or truncated if too long, fillchar is used for all whitespace. 3851 */ 3852 int 3853 build_stl_str_hl( 3854 win_T *wp, 3855 char_u *out, /* buffer to write into != NameBuff */ 3856 size_t outlen, /* length of out[] */ 3857 char_u *fmt, 3858 int use_sandbox UNUSED, /* "fmt" was set insecurely, use sandbox */ 3859 int fillchar, 3860 int maxwidth, 3861 struct stl_hlrec *hltab, /* return: HL attributes (can be NULL) */ 3862 struct stl_hlrec *tabtab) /* return: tab page nrs (can be NULL) */ 3863 { 3864 linenr_T lnum; 3865 size_t len; 3866 char_u *p; 3867 char_u *s; 3868 char_u *t; 3869 int byteval; 3870 #ifdef FEAT_EVAL 3871 win_T *save_curwin; 3872 buf_T *save_curbuf; 3873 #endif 3874 int empty_line; 3875 colnr_T virtcol; 3876 long l; 3877 long n; 3878 int prevchar_isflag; 3879 int prevchar_isitem; 3880 int itemisflag; 3881 int fillable; 3882 char_u *str; 3883 long num; 3884 int width; 3885 int itemcnt; 3886 int curitem; 3887 int group_end_userhl; 3888 int group_start_userhl; 3889 int groupitem[STL_MAX_ITEM]; 3890 int groupdepth; 3891 struct stl_item 3892 { 3893 char_u *start; 3894 int minwid; 3895 int maxwid; 3896 enum 3897 { 3898 Normal, 3899 Empty, 3900 Group, 3901 Middle, 3902 Highlight, 3903 TabPage, 3904 Trunc 3905 } type; 3906 } item[STL_MAX_ITEM]; 3907 int minwid; 3908 int maxwid; 3909 int zeropad; 3910 char_u base; 3911 char_u opt; 3912 #define TMPLEN 70 3913 char_u buf_tmp[TMPLEN]; 3914 char_u win_tmp[TMPLEN]; 3915 char_u *usefmt = fmt; 3916 struct stl_hlrec *sp; 3917 int save_must_redraw = must_redraw; 3918 int save_redr_type = curwin->w_redr_type; 3919 3920 #ifdef FEAT_EVAL 3921 /* 3922 * When the format starts with "%!" then evaluate it as an expression and 3923 * use the result as the actual format string. 3924 */ 3925 if (fmt[0] == '%' && fmt[1] == '!') 3926 { 3927 typval_T tv; 3928 3929 tv.v_type = VAR_NUMBER; 3930 tv.vval.v_number = wp->w_id; 3931 set_var((char_u *)"g:statusline_winid", &tv, FALSE); 3932 3933 usefmt = eval_to_string_safe(fmt + 2, NULL, use_sandbox); 3934 if (usefmt == NULL) 3935 usefmt = fmt; 3936 3937 do_unlet((char_u *)"g:statusline_winid", TRUE); 3938 } 3939 #endif 3940 3941 if (fillchar == 0) 3942 fillchar = ' '; 3943 /* Can't handle a multi-byte fill character yet. */ 3944 else if (mb_char2len(fillchar) > 1) 3945 fillchar = '-'; 3946 3947 // The cursor in windows other than the current one isn't always 3948 // up-to-date, esp. because of autocommands and timers. 3949 lnum = wp->w_cursor.lnum; 3950 if (lnum > wp->w_buffer->b_ml.ml_line_count) 3951 { 3952 lnum = wp->w_buffer->b_ml.ml_line_count; 3953 wp->w_cursor.lnum = lnum; 3954 } 3955 3956 // Get line & check if empty (cursorpos will show "0-1"). Note that 3957 // p will become invalid when getting another buffer line. 3958 p = ml_get_buf(wp->w_buffer, lnum, FALSE); 3959 empty_line = (*p == NUL); 3960 3961 // Get the byte value now, in case we need it below. This is more efficient 3962 // than making a copy of the line. 3963 len = STRLEN(p); 3964 if (wp->w_cursor.col > (colnr_T)len) 3965 { 3966 // Line may have changed since checking the cursor column, or the lnum 3967 // was adjusted above. 3968 wp->w_cursor.col = (colnr_T)len; 3969 wp->w_cursor.coladd = 0; 3970 byteval = 0; 3971 } 3972 else 3973 byteval = (*mb_ptr2char)(p + wp->w_cursor.col); 3974 3975 groupdepth = 0; 3976 p = out; 3977 curitem = 0; 3978 prevchar_isflag = TRUE; 3979 prevchar_isitem = FALSE; 3980 for (s = usefmt; *s; ) 3981 { 3982 if (curitem == STL_MAX_ITEM) 3983 { 3984 /* There are too many items. Add the error code to the statusline 3985 * to give the user a hint about what went wrong. */ 3986 if (p + 6 < out + outlen) 3987 { 3988 mch_memmove(p, " E541", (size_t)5); 3989 p += 5; 3990 } 3991 break; 3992 } 3993 3994 if (*s != NUL && *s != '%') 3995 prevchar_isflag = prevchar_isitem = FALSE; 3996 3997 /* 3998 * Handle up to the next '%' or the end. 3999 */ 4000 while (*s != NUL && *s != '%' && p + 1 < out + outlen) 4001 *p++ = *s++; 4002 if (*s == NUL || p + 1 >= out + outlen) 4003 break; 4004 4005 /* 4006 * Handle one '%' item. 4007 */ 4008 s++; 4009 if (*s == NUL) /* ignore trailing % */ 4010 break; 4011 if (*s == '%') 4012 { 4013 if (p + 1 >= out + outlen) 4014 break; 4015 *p++ = *s++; 4016 prevchar_isflag = prevchar_isitem = FALSE; 4017 continue; 4018 } 4019 if (*s == STL_MIDDLEMARK) 4020 { 4021 s++; 4022 if (groupdepth > 0) 4023 continue; 4024 item[curitem].type = Middle; 4025 item[curitem++].start = p; 4026 continue; 4027 } 4028 if (*s == STL_TRUNCMARK) 4029 { 4030 s++; 4031 item[curitem].type = Trunc; 4032 item[curitem++].start = p; 4033 continue; 4034 } 4035 if (*s == ')') 4036 { 4037 s++; 4038 if (groupdepth < 1) 4039 continue; 4040 groupdepth--; 4041 4042 t = item[groupitem[groupdepth]].start; 4043 *p = NUL; 4044 l = vim_strsize(t); 4045 if (curitem > groupitem[groupdepth] + 1 4046 && item[groupitem[groupdepth]].minwid == 0) 4047 { 4048 /* remove group if all items are empty and highlight group 4049 * doesn't change */ 4050 group_start_userhl = group_end_userhl = 0; 4051 for (n = groupitem[groupdepth] - 1; n >= 0; n--) 4052 { 4053 if (item[n].type == Highlight) 4054 { 4055 group_start_userhl = group_end_userhl = item[n].minwid; 4056 break; 4057 } 4058 } 4059 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 4060 { 4061 if (item[n].type == Normal) 4062 break; 4063 if (item[n].type == Highlight) 4064 group_end_userhl = item[n].minwid; 4065 } 4066 if (n == curitem && group_start_userhl == group_end_userhl) 4067 { 4068 p = t; 4069 l = 0; 4070 } 4071 } 4072 if (l > item[groupitem[groupdepth]].maxwid) 4073 { 4074 /* truncate, remove n bytes of text at the start */ 4075 if (has_mbyte) 4076 { 4077 /* Find the first character that should be included. */ 4078 n = 0; 4079 while (l >= item[groupitem[groupdepth]].maxwid) 4080 { 4081 l -= ptr2cells(t + n); 4082 n += (*mb_ptr2len)(t + n); 4083 } 4084 } 4085 else 4086 n = (long)(p - t) - item[groupitem[groupdepth]].maxwid + 1; 4087 4088 *t = '<'; 4089 mch_memmove(t + 1, t + n, (size_t)(p - (t + n))); 4090 p = p - n + 1; 4091 4092 // Fill up space left over by half a double-wide char. 4093 while (++l < item[groupitem[groupdepth]].minwid) 4094 *p++ = fillchar; 4095 4096 /* correct the start of the items for the truncation */ 4097 for (l = groupitem[groupdepth] + 1; l < curitem; l++) 4098 { 4099 item[l].start -= n; 4100 if (item[l].start < t) 4101 item[l].start = t; 4102 } 4103 } 4104 else if (abs(item[groupitem[groupdepth]].minwid) > l) 4105 { 4106 /* fill */ 4107 n = item[groupitem[groupdepth]].minwid; 4108 if (n < 0) 4109 { 4110 /* fill by appending characters */ 4111 n = 0 - n; 4112 while (l++ < n && p + 1 < out + outlen) 4113 *p++ = fillchar; 4114 } 4115 else 4116 { 4117 /* fill by inserting characters */ 4118 mch_memmove(t + n - l, t, (size_t)(p - t)); 4119 l = n - l; 4120 if (p + l >= out + outlen) 4121 l = (long)((out + outlen) - p - 1); 4122 p += l; 4123 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 4124 item[n].start += l; 4125 for ( ; l > 0; l--) 4126 *t++ = fillchar; 4127 } 4128 } 4129 continue; 4130 } 4131 minwid = 0; 4132 maxwid = 9999; 4133 zeropad = FALSE; 4134 l = 1; 4135 if (*s == '0') 4136 { 4137 s++; 4138 zeropad = TRUE; 4139 } 4140 if (*s == '-') 4141 { 4142 s++; 4143 l = -1; 4144 } 4145 if (VIM_ISDIGIT(*s)) 4146 { 4147 minwid = (int)getdigits(&s); 4148 if (minwid < 0) /* overflow */ 4149 minwid = 0; 4150 } 4151 if (*s == STL_USER_HL) 4152 { 4153 item[curitem].type = Highlight; 4154 item[curitem].start = p; 4155 item[curitem].minwid = minwid > 9 ? 1 : minwid; 4156 s++; 4157 curitem++; 4158 continue; 4159 } 4160 if (*s == STL_TABPAGENR || *s == STL_TABCLOSENR) 4161 { 4162 if (*s == STL_TABCLOSENR) 4163 { 4164 if (minwid == 0) 4165 { 4166 /* %X ends the close label, go back to the previously 4167 * define tab label nr. */ 4168 for (n = curitem - 1; n >= 0; --n) 4169 if (item[n].type == TabPage && item[n].minwid >= 0) 4170 { 4171 minwid = item[n].minwid; 4172 break; 4173 } 4174 } 4175 else 4176 /* close nrs are stored as negative values */ 4177 minwid = - minwid; 4178 } 4179 item[curitem].type = TabPage; 4180 item[curitem].start = p; 4181 item[curitem].minwid = minwid; 4182 s++; 4183 curitem++; 4184 continue; 4185 } 4186 if (*s == '.') 4187 { 4188 s++; 4189 if (VIM_ISDIGIT(*s)) 4190 { 4191 maxwid = (int)getdigits(&s); 4192 if (maxwid <= 0) /* overflow */ 4193 maxwid = 50; 4194 } 4195 } 4196 minwid = (minwid > 50 ? 50 : minwid) * l; 4197 if (*s == '(') 4198 { 4199 groupitem[groupdepth++] = curitem; 4200 item[curitem].type = Group; 4201 item[curitem].start = p; 4202 item[curitem].minwid = minwid; 4203 item[curitem].maxwid = maxwid; 4204 s++; 4205 curitem++; 4206 continue; 4207 } 4208 if (vim_strchr(STL_ALL, *s) == NULL) 4209 { 4210 s++; 4211 continue; 4212 } 4213 opt = *s++; 4214 4215 /* OK - now for the real work */ 4216 base = 'D'; 4217 itemisflag = FALSE; 4218 fillable = TRUE; 4219 num = -1; 4220 str = NULL; 4221 switch (opt) 4222 { 4223 case STL_FILEPATH: 4224 case STL_FULLPATH: 4225 case STL_FILENAME: 4226 fillable = FALSE; /* don't change ' ' to fillchar */ 4227 if (buf_spname(wp->w_buffer) != NULL) 4228 vim_strncpy(NameBuff, buf_spname(wp->w_buffer), MAXPATHL - 1); 4229 else 4230 { 4231 t = (opt == STL_FULLPATH) ? wp->w_buffer->b_ffname 4232 : wp->w_buffer->b_fname; 4233 home_replace(wp->w_buffer, t, NameBuff, MAXPATHL, TRUE); 4234 } 4235 trans_characters(NameBuff, MAXPATHL); 4236 if (opt != STL_FILENAME) 4237 str = NameBuff; 4238 else 4239 str = gettail(NameBuff); 4240 break; 4241 4242 case STL_VIM_EXPR: /* '{' */ 4243 itemisflag = TRUE; 4244 t = p; 4245 while (*s != '}' && *s != NUL && p + 1 < out + outlen) 4246 *p++ = *s++; 4247 if (*s != '}') /* missing '}' or out of space */ 4248 break; 4249 s++; 4250 *p = 0; 4251 p = t; 4252 4253 #ifdef FEAT_EVAL 4254 vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), 4255 "%d", curbuf->b_fnum); 4256 set_internal_string_var((char_u *)"g:actual_curbuf", buf_tmp); 4257 vim_snprintf((char *)win_tmp, sizeof(win_tmp), "%d", curwin->w_id); 4258 set_internal_string_var((char_u *)"g:actual_curwin", win_tmp); 4259 4260 save_curbuf = curbuf; 4261 save_curwin = curwin; 4262 curwin = wp; 4263 curbuf = wp->w_buffer; 4264 4265 str = eval_to_string_safe(p, &t, use_sandbox); 4266 4267 curwin = save_curwin; 4268 curbuf = save_curbuf; 4269 do_unlet((char_u *)"g:actual_curbuf", TRUE); 4270 do_unlet((char_u *)"g:actual_curwin", TRUE); 4271 4272 if (str != NULL && *str != 0) 4273 { 4274 if (*skipdigits(str) == NUL) 4275 { 4276 num = atoi((char *)str); 4277 VIM_CLEAR(str); 4278 itemisflag = FALSE; 4279 } 4280 } 4281 #endif 4282 break; 4283 4284 case STL_LINE: 4285 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) 4286 ? 0L : (long)(wp->w_cursor.lnum); 4287 break; 4288 4289 case STL_NUMLINES: 4290 num = wp->w_buffer->b_ml.ml_line_count; 4291 break; 4292 4293 case STL_COLUMN: 4294 num = !(State & INSERT) && empty_line 4295 ? 0 : (int)wp->w_cursor.col + 1; 4296 break; 4297 4298 case STL_VIRTCOL: 4299 case STL_VIRTCOL_ALT: 4300 /* In list mode virtcol needs to be recomputed */ 4301 virtcol = wp->w_virtcol; 4302 if (wp->w_p_list && lcs_tab1 == NUL) 4303 { 4304 wp->w_p_list = FALSE; 4305 getvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL); 4306 wp->w_p_list = TRUE; 4307 } 4308 ++virtcol; 4309 /* Don't display %V if it's the same as %c. */ 4310 if (opt == STL_VIRTCOL_ALT 4311 && (virtcol == (colnr_T)(!(State & INSERT) && empty_line 4312 ? 0 : (int)wp->w_cursor.col + 1))) 4313 break; 4314 num = (long)virtcol; 4315 break; 4316 4317 case STL_PERCENTAGE: 4318 num = (int)(((long)wp->w_cursor.lnum * 100L) / 4319 (long)wp->w_buffer->b_ml.ml_line_count); 4320 break; 4321 4322 case STL_ALTPERCENT: 4323 str = buf_tmp; 4324 get_rel_pos(wp, str, TMPLEN); 4325 break; 4326 4327 case STL_ARGLISTSTAT: 4328 fillable = FALSE; 4329 buf_tmp[0] = 0; 4330 if (append_arg_number(wp, buf_tmp, (int)sizeof(buf_tmp), FALSE)) 4331 str = buf_tmp; 4332 break; 4333 4334 case STL_KEYMAP: 4335 fillable = FALSE; 4336 if (get_keymap_str(wp, (char_u *)"<%s>", buf_tmp, TMPLEN)) 4337 str = buf_tmp; 4338 break; 4339 case STL_PAGENUM: 4340 #if defined(FEAT_PRINTER) || defined(FEAT_GUI_TABLINE) 4341 num = printer_page_num; 4342 #else 4343 num = 0; 4344 #endif 4345 break; 4346 4347 case STL_BUFNO: 4348 num = wp->w_buffer->b_fnum; 4349 break; 4350 4351 case STL_OFFSET_X: 4352 base = 'X'; 4353 /* FALLTHROUGH */ 4354 case STL_OFFSET: 4355 #ifdef FEAT_BYTEOFF 4356 l = ml_find_line_or_offset(wp->w_buffer, wp->w_cursor.lnum, NULL); 4357 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) || l < 0 ? 4358 0L : l + 1 + (!(State & INSERT) && empty_line ? 4359 0 : (int)wp->w_cursor.col); 4360 #endif 4361 break; 4362 4363 case STL_BYTEVAL_X: 4364 base = 'X'; 4365 /* FALLTHROUGH */ 4366 case STL_BYTEVAL: 4367 num = byteval; 4368 if (num == NL) 4369 num = 0; 4370 else if (num == CAR && get_fileformat(wp->w_buffer) == EOL_MAC) 4371 num = NL; 4372 break; 4373 4374 case STL_ROFLAG: 4375 case STL_ROFLAG_ALT: 4376 itemisflag = TRUE; 4377 if (wp->w_buffer->b_p_ro) 4378 str = (char_u *)((opt == STL_ROFLAG_ALT) ? ",RO" : _("[RO]")); 4379 break; 4380 4381 case STL_HELPFLAG: 4382 case STL_HELPFLAG_ALT: 4383 itemisflag = TRUE; 4384 if (wp->w_buffer->b_help) 4385 str = (char_u *)((opt == STL_HELPFLAG_ALT) ? ",HLP" 4386 : _("[Help]")); 4387 break; 4388 4389 case STL_FILETYPE: 4390 if (*wp->w_buffer->b_p_ft != NUL 4391 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 3) 4392 { 4393 vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), "[%s]", 4394 wp->w_buffer->b_p_ft); 4395 str = buf_tmp; 4396 } 4397 break; 4398 4399 case STL_FILETYPE_ALT: 4400 itemisflag = TRUE; 4401 if (*wp->w_buffer->b_p_ft != NUL 4402 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 2) 4403 { 4404 vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), ",%s", 4405 wp->w_buffer->b_p_ft); 4406 for (t = buf_tmp; *t != 0; t++) 4407 *t = TOUPPER_LOC(*t); 4408 str = buf_tmp; 4409 } 4410 break; 4411 4412 #if defined(FEAT_QUICKFIX) 4413 case STL_PREVIEWFLAG: 4414 case STL_PREVIEWFLAG_ALT: 4415 itemisflag = TRUE; 4416 if (wp->w_p_pvw) 4417 str = (char_u *)((opt == STL_PREVIEWFLAG_ALT) ? ",PRV" 4418 : _("[Preview]")); 4419 break; 4420 4421 case STL_QUICKFIX: 4422 if (bt_quickfix(wp->w_buffer)) 4423 str = (char_u *)(wp->w_llist_ref 4424 ? _(msg_loclist) 4425 : _(msg_qflist)); 4426 break; 4427 #endif 4428 4429 case STL_MODIFIED: 4430 case STL_MODIFIED_ALT: 4431 itemisflag = TRUE; 4432 switch ((opt == STL_MODIFIED_ALT) 4433 + bufIsChanged(wp->w_buffer) * 2 4434 + (!wp->w_buffer->b_p_ma) * 4) 4435 { 4436 case 2: str = (char_u *)"[+]"; break; 4437 case 3: str = (char_u *)",+"; break; 4438 case 4: str = (char_u *)"[-]"; break; 4439 case 5: str = (char_u *)",-"; break; 4440 case 6: str = (char_u *)"[+-]"; break; 4441 case 7: str = (char_u *)",+-"; break; 4442 } 4443 break; 4444 4445 case STL_HIGHLIGHT: 4446 t = s; 4447 while (*s != '#' && *s != NUL) 4448 ++s; 4449 if (*s == '#') 4450 { 4451 item[curitem].type = Highlight; 4452 item[curitem].start = p; 4453 item[curitem].minwid = -syn_namen2id(t, (int)(s - t)); 4454 curitem++; 4455 } 4456 if (*s != NUL) 4457 ++s; 4458 continue; 4459 } 4460 4461 item[curitem].start = p; 4462 item[curitem].type = Normal; 4463 if (str != NULL && *str) 4464 { 4465 t = str; 4466 if (itemisflag) 4467 { 4468 if ((t[0] && t[1]) 4469 && ((!prevchar_isitem && *t == ',') 4470 || (prevchar_isflag && *t == ' '))) 4471 t++; 4472 prevchar_isflag = TRUE; 4473 } 4474 l = vim_strsize(t); 4475 if (l > 0) 4476 prevchar_isitem = TRUE; 4477 if (l > maxwid) 4478 { 4479 while (l >= maxwid) 4480 if (has_mbyte) 4481 { 4482 l -= ptr2cells(t); 4483 t += (*mb_ptr2len)(t); 4484 } 4485 else 4486 l -= byte2cells(*t++); 4487 if (p + 1 >= out + outlen) 4488 break; 4489 *p++ = '<'; 4490 } 4491 if (minwid > 0) 4492 { 4493 for (; l < minwid && p + 1 < out + outlen; l++) 4494 { 4495 /* Don't put a "-" in front of a digit. */ 4496 if (l + 1 == minwid && fillchar == '-' && VIM_ISDIGIT(*t)) 4497 *p++ = ' '; 4498 else 4499 *p++ = fillchar; 4500 } 4501 minwid = 0; 4502 } 4503 else 4504 minwid *= -1; 4505 while (*t && p + 1 < out + outlen) 4506 { 4507 *p++ = *t++; 4508 /* Change a space by fillchar, unless fillchar is '-' and a 4509 * digit follows. */ 4510 if (fillable && p[-1] == ' ' 4511 && (!VIM_ISDIGIT(*t) || fillchar != '-')) 4512 p[-1] = fillchar; 4513 } 4514 for (; l < minwid && p + 1 < out + outlen; l++) 4515 *p++ = fillchar; 4516 } 4517 else if (num >= 0) 4518 { 4519 int nbase = (base == 'D' ? 10 : (base == 'O' ? 8 : 16)); 4520 char_u nstr[20]; 4521 4522 if (p + 20 >= out + outlen) 4523 break; /* not sufficient space */ 4524 prevchar_isitem = TRUE; 4525 t = nstr; 4526 if (opt == STL_VIRTCOL_ALT) 4527 { 4528 *t++ = '-'; 4529 minwid--; 4530 } 4531 *t++ = '%'; 4532 if (zeropad) 4533 *t++ = '0'; 4534 *t++ = '*'; 4535 *t++ = nbase == 16 ? base : (char_u)(nbase == 8 ? 'o' : 'd'); 4536 *t = 0; 4537 4538 for (n = num, l = 1; n >= nbase; n /= nbase) 4539 l++; 4540 if (opt == STL_VIRTCOL_ALT) 4541 l++; 4542 if (l > maxwid) 4543 { 4544 l += 2; 4545 n = l - maxwid; 4546 while (l-- > maxwid) 4547 num /= nbase; 4548 *t++ = '>'; 4549 *t++ = '%'; 4550 *t = t[-3]; 4551 *++t = 0; 4552 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4553 0, num, n); 4554 } 4555 else 4556 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4557 minwid, num); 4558 p += STRLEN(p); 4559 } 4560 else 4561 item[curitem].type = Empty; 4562 4563 if (opt == STL_VIM_EXPR) 4564 vim_free(str); 4565 4566 if (num >= 0 || (!itemisflag && str && *str)) 4567 prevchar_isflag = FALSE; /* Item not NULL, but not a flag */ 4568 curitem++; 4569 } 4570 *p = NUL; 4571 itemcnt = curitem; 4572 4573 #ifdef FEAT_EVAL 4574 if (usefmt != fmt) 4575 vim_free(usefmt); 4576 #endif 4577 4578 width = vim_strsize(out); 4579 if (maxwidth > 0 && width > maxwidth) 4580 { 4581 /* Result is too long, must truncate somewhere. */ 4582 l = 0; 4583 if (itemcnt == 0) 4584 s = out; 4585 else 4586 { 4587 for ( ; l < itemcnt; l++) 4588 if (item[l].type == Trunc) 4589 { 4590 /* Truncate at %< item. */ 4591 s = item[l].start; 4592 break; 4593 } 4594 if (l == itemcnt) 4595 { 4596 /* No %< item, truncate first item. */ 4597 s = item[0].start; 4598 l = 0; 4599 } 4600 } 4601 4602 if (width - vim_strsize(s) >= maxwidth) 4603 { 4604 /* Truncation mark is beyond max length */ 4605 if (has_mbyte) 4606 { 4607 s = out; 4608 width = 0; 4609 for (;;) 4610 { 4611 width += ptr2cells(s); 4612 if (width >= maxwidth) 4613 break; 4614 s += (*mb_ptr2len)(s); 4615 } 4616 /* Fill up for half a double-wide character. */ 4617 while (++width < maxwidth) 4618 *s++ = fillchar; 4619 } 4620 else 4621 s = out + maxwidth - 1; 4622 for (l = 0; l < itemcnt; l++) 4623 if (item[l].start > s) 4624 break; 4625 itemcnt = l; 4626 *s++ = '>'; 4627 *s = 0; 4628 } 4629 else 4630 { 4631 if (has_mbyte) 4632 { 4633 n = 0; 4634 while (width >= maxwidth) 4635 { 4636 width -= ptr2cells(s + n); 4637 n += (*mb_ptr2len)(s + n); 4638 } 4639 } 4640 else 4641 n = width - maxwidth + 1; 4642 p = s + n; 4643 STRMOVE(s + 1, p); 4644 *s = '<'; 4645 4646 /* Fill up for half a double-wide character. */ 4647 while (++width < maxwidth) 4648 { 4649 s = s + STRLEN(s); 4650 *s++ = fillchar; 4651 *s = NUL; 4652 } 4653 4654 --n; /* count the '<' */ 4655 for (; l < itemcnt; l++) 4656 { 4657 if (item[l].start - n >= s) 4658 item[l].start -= n; 4659 else 4660 item[l].start = s; 4661 } 4662 } 4663 width = maxwidth; 4664 } 4665 else if (width < maxwidth && STRLEN(out) + maxwidth - width + 1 < outlen) 4666 { 4667 /* Apply STL_MIDDLE if any */ 4668 for (l = 0; l < itemcnt; l++) 4669 if (item[l].type == Middle) 4670 break; 4671 if (l < itemcnt) 4672 { 4673 p = item[l].start + maxwidth - width; 4674 STRMOVE(p, item[l].start); 4675 for (s = item[l].start; s < p; s++) 4676 *s = fillchar; 4677 for (l++; l < itemcnt; l++) 4678 item[l].start += maxwidth - width; 4679 width = maxwidth; 4680 } 4681 } 4682 4683 /* Store the info about highlighting. */ 4684 if (hltab != NULL) 4685 { 4686 sp = hltab; 4687 for (l = 0; l < itemcnt; l++) 4688 { 4689 if (item[l].type == Highlight) 4690 { 4691 sp->start = item[l].start; 4692 sp->userhl = item[l].minwid; 4693 sp++; 4694 } 4695 } 4696 sp->start = NULL; 4697 sp->userhl = 0; 4698 } 4699 4700 /* Store the info about tab pages labels. */ 4701 if (tabtab != NULL) 4702 { 4703 sp = tabtab; 4704 for (l = 0; l < itemcnt; l++) 4705 { 4706 if (item[l].type == TabPage) 4707 { 4708 sp->start = item[l].start; 4709 sp->userhl = item[l].minwid; 4710 sp++; 4711 } 4712 } 4713 sp->start = NULL; 4714 sp->userhl = 0; 4715 } 4716 4717 /* When inside update_screen we do not want redrawing a stausline, ruler, 4718 * title, etc. to trigger another redraw, it may cause an endless loop. */ 4719 if (updating_screen) 4720 { 4721 must_redraw = save_must_redraw; 4722 curwin->w_redr_type = save_redr_type; 4723 } 4724 4725 return width; 4726 } 4727 #endif /* FEAT_STL_OPT */ 4728 4729 #if defined(FEAT_STL_OPT) || defined(FEAT_CMDL_INFO) \ 4730 || defined(FEAT_GUI_TABLINE) || defined(PROTO) 4731 /* 4732 * Get relative cursor position in window into "buf[buflen]", in the form 99%, 4733 * using "Top", "Bot" or "All" when appropriate. 4734 */ 4735 void 4736 get_rel_pos( 4737 win_T *wp, 4738 char_u *buf, 4739 int buflen) 4740 { 4741 long above; /* number of lines above window */ 4742 long below; /* number of lines below window */ 4743 4744 if (buflen < 3) /* need at least 3 chars for writing */ 4745 return; 4746 above = wp->w_topline - 1; 4747 #ifdef FEAT_DIFF 4748 above += diff_check_fill(wp, wp->w_topline) - wp->w_topfill; 4749 if (wp->w_topline == 1 && wp->w_topfill >= 1) 4750 above = 0; /* All buffer lines are displayed and there is an 4751 * indication of filler lines, that can be considered 4752 * seeing all lines. */ 4753 #endif 4754 below = wp->w_buffer->b_ml.ml_line_count - wp->w_botline + 1; 4755 if (below <= 0) 4756 vim_strncpy(buf, (char_u *)(above == 0 ? _("All") : _("Bot")), 4757 (size_t)(buflen - 1)); 4758 else if (above <= 0) 4759 vim_strncpy(buf, (char_u *)_("Top"), (size_t)(buflen - 1)); 4760 else 4761 vim_snprintf((char *)buf, (size_t)buflen, "%2d%%", above > 1000000L 4762 ? (int)(above / ((above + below) / 100L)) 4763 : (int)(above * 100L / (above + below))); 4764 } 4765 #endif 4766 4767 /* 4768 * Append (file 2 of 8) to "buf[buflen]", if editing more than one file. 4769 * Return TRUE if it was appended. 4770 */ 4771 static int 4772 append_arg_number( 4773 win_T *wp, 4774 char_u *buf, 4775 int buflen, 4776 int add_file) /* Add "file" before the arg number */ 4777 { 4778 char_u *p; 4779 4780 if (ARGCOUNT <= 1) /* nothing to do */ 4781 return FALSE; 4782 4783 p = buf + STRLEN(buf); /* go to the end of the buffer */ 4784 if (p - buf + 35 >= buflen) /* getting too long */ 4785 return FALSE; 4786 *p++ = ' '; 4787 *p++ = '('; 4788 if (add_file) 4789 { 4790 STRCPY(p, "file "); 4791 p += 5; 4792 } 4793 vim_snprintf((char *)p, (size_t)(buflen - (p - buf)), 4794 wp->w_arg_idx_invalid ? "(%d) of %d)" 4795 : "%d of %d)", wp->w_arg_idx + 1, ARGCOUNT); 4796 return TRUE; 4797 } 4798 4799 /* 4800 * If fname is not a full path, make it a full path. 4801 * Returns pointer to allocated memory (NULL for failure). 4802 */ 4803 char_u * 4804 fix_fname(char_u *fname) 4805 { 4806 /* 4807 * Force expanding the path always for Unix, because symbolic links may 4808 * mess up the full path name, even though it starts with a '/'. 4809 * Also expand when there is ".." in the file name, try to remove it, 4810 * because "c:/src/../README" is equal to "c:/README". 4811 * Similarly "c:/src//file" is equal to "c:/src/file". 4812 * For MS-Windows also expand names like "longna~1" to "longname". 4813 */ 4814 #ifdef UNIX 4815 return FullName_save(fname, TRUE); 4816 #else 4817 if (!vim_isAbsName(fname) 4818 || strstr((char *)fname, "..") != NULL 4819 || strstr((char *)fname, "//") != NULL 4820 # ifdef BACKSLASH_IN_FILENAME 4821 || strstr((char *)fname, "\\\\") != NULL 4822 # endif 4823 # if defined(MSWIN) 4824 || vim_strchr(fname, '~') != NULL 4825 # endif 4826 ) 4827 return FullName_save(fname, FALSE); 4828 4829 fname = vim_strsave(fname); 4830 4831 # ifdef USE_FNAME_CASE 4832 if (fname != NULL) 4833 fname_case(fname, 0); /* set correct case for file name */ 4834 # endif 4835 4836 return fname; 4837 #endif 4838 } 4839 4840 /* 4841 * Make "*ffname" a full file name, set "*sfname" to "*ffname" if not NULL. 4842 * "*ffname" becomes a pointer to allocated memory (or NULL). 4843 * When resolving a link both "*sfname" and "*ffname" will point to the same 4844 * allocated memory. 4845 * The "*ffname" and "*sfname" pointer values on call will not be freed. 4846 * Note that the resulting "*ffname" pointer should be considered not allocaed. 4847 */ 4848 void 4849 fname_expand( 4850 buf_T *buf UNUSED, 4851 char_u **ffname, 4852 char_u **sfname) 4853 { 4854 if (*ffname == NULL) // no file name given, nothing to do 4855 return; 4856 if (*sfname == NULL) // no short file name given, use ffname 4857 *sfname = *ffname; 4858 *ffname = fix_fname(*ffname); // expand to full path 4859 4860 #ifdef FEAT_SHORTCUT 4861 if (!buf->b_p_bin) 4862 { 4863 char_u *rfname; 4864 4865 // If the file name is a shortcut file, use the file it links to. 4866 rfname = mch_resolve_path(*ffname, FALSE); 4867 if (rfname != NULL) 4868 { 4869 vim_free(*ffname); 4870 *ffname = rfname; 4871 *sfname = rfname; 4872 } 4873 } 4874 #endif 4875 } 4876 4877 /* 4878 * Open a window for a number of buffers. 4879 */ 4880 void 4881 ex_buffer_all(exarg_T *eap) 4882 { 4883 buf_T *buf; 4884 win_T *wp, *wpnext; 4885 int split_ret = OK; 4886 int p_ea_save; 4887 int open_wins = 0; 4888 int r; 4889 int count; /* Maximum number of windows to open. */ 4890 int all; /* When TRUE also load inactive buffers. */ 4891 int had_tab = cmdmod.tab; 4892 tabpage_T *tpnext; 4893 4894 if (eap->addr_count == 0) /* make as many windows as possible */ 4895 count = 9999; 4896 else 4897 count = eap->line2; /* make as many windows as specified */ 4898 if (eap->cmdidx == CMD_unhide || eap->cmdidx == CMD_sunhide) 4899 all = FALSE; 4900 else 4901 all = TRUE; 4902 4903 setpcmark(); 4904 4905 #ifdef FEAT_GUI 4906 need_mouse_correct = TRUE; 4907 #endif 4908 4909 /* 4910 * Close superfluous windows (two windows for the same buffer). 4911 * Also close windows that are not full-width. 4912 */ 4913 if (had_tab > 0) 4914 goto_tabpage_tp(first_tabpage, TRUE, TRUE); 4915 for (;;) 4916 { 4917 tpnext = curtab->tp_next; 4918 for (wp = firstwin; wp != NULL; wp = wpnext) 4919 { 4920 wpnext = wp->w_next; 4921 if ((wp->w_buffer->b_nwindows > 1 4922 || ((cmdmod.split & WSP_VERT) 4923 ? wp->w_height + wp->w_status_height < Rows - p_ch 4924 - tabline_height() 4925 : wp->w_width != Columns) 4926 || (had_tab > 0 && wp != firstwin)) && !ONE_WINDOW 4927 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 4928 { 4929 win_close(wp, FALSE); 4930 wpnext = firstwin; /* just in case an autocommand does 4931 something strange with windows */ 4932 tpnext = first_tabpage; /* start all over... */ 4933 open_wins = 0; 4934 } 4935 else 4936 ++open_wins; 4937 } 4938 4939 /* Without the ":tab" modifier only do the current tab page. */ 4940 if (had_tab == 0 || tpnext == NULL) 4941 break; 4942 goto_tabpage_tp(tpnext, TRUE, TRUE); 4943 } 4944 4945 /* 4946 * Go through the buffer list. When a buffer doesn't have a window yet, 4947 * open one. Otherwise move the window to the right position. 4948 * Watch out for autocommands that delete buffers or windows! 4949 */ 4950 /* Don't execute Win/Buf Enter/Leave autocommands here. */ 4951 ++autocmd_no_enter; 4952 win_enter(lastwin, FALSE); 4953 ++autocmd_no_leave; 4954 for (buf = firstbuf; buf != NULL && open_wins < count; buf = buf->b_next) 4955 { 4956 /* Check if this buffer needs a window */ 4957 if ((!all && buf->b_ml.ml_mfp == NULL) || !buf->b_p_bl) 4958 continue; 4959 4960 if (had_tab != 0) 4961 { 4962 /* With the ":tab" modifier don't move the window. */ 4963 if (buf->b_nwindows > 0) 4964 wp = lastwin; /* buffer has a window, skip it */ 4965 else 4966 wp = NULL; 4967 } 4968 else 4969 { 4970 /* Check if this buffer already has a window */ 4971 FOR_ALL_WINDOWS(wp) 4972 if (wp->w_buffer == buf) 4973 break; 4974 /* If the buffer already has a window, move it */ 4975 if (wp != NULL) 4976 win_move_after(wp, curwin); 4977 } 4978 4979 if (wp == NULL && split_ret == OK) 4980 { 4981 bufref_T bufref; 4982 4983 set_bufref(&bufref, buf); 4984 4985 /* Split the window and put the buffer in it */ 4986 p_ea_save = p_ea; 4987 p_ea = TRUE; /* use space from all windows */ 4988 split_ret = win_split(0, WSP_ROOM | WSP_BELOW); 4989 ++open_wins; 4990 p_ea = p_ea_save; 4991 if (split_ret == FAIL) 4992 continue; 4993 4994 /* Open the buffer in this window. */ 4995 swap_exists_action = SEA_DIALOG; 4996 set_curbuf(buf, DOBUF_GOTO); 4997 if (!bufref_valid(&bufref)) 4998 { 4999 /* autocommands deleted the buffer!!! */ 5000 swap_exists_action = SEA_NONE; 5001 break; 5002 } 5003 if (swap_exists_action == SEA_QUIT) 5004 { 5005 #if defined(FEAT_EVAL) 5006 cleanup_T cs; 5007 5008 /* Reset the error/interrupt/exception state here so that 5009 * aborting() returns FALSE when closing a window. */ 5010 enter_cleanup(&cs); 5011 #endif 5012 5013 /* User selected Quit at ATTENTION prompt; close this window. */ 5014 win_close(curwin, TRUE); 5015 --open_wins; 5016 swap_exists_action = SEA_NONE; 5017 swap_exists_did_quit = TRUE; 5018 5019 #if defined(FEAT_EVAL) 5020 /* Restore the error/interrupt/exception state if not 5021 * discarded by a new aborting error, interrupt, or uncaught 5022 * exception. */ 5023 leave_cleanup(&cs); 5024 #endif 5025 } 5026 else 5027 handle_swap_exists(NULL); 5028 } 5029 5030 ui_breakcheck(); 5031 if (got_int) 5032 { 5033 (void)vgetc(); /* only break the file loading, not the rest */ 5034 break; 5035 } 5036 #ifdef FEAT_EVAL 5037 /* Autocommands deleted the buffer or aborted script processing!!! */ 5038 if (aborting()) 5039 break; 5040 #endif 5041 /* When ":tab" was used open a new tab for a new window repeatedly. */ 5042 if (had_tab > 0 && tabpage_index(NULL) <= p_tpm) 5043 cmdmod.tab = 9999; 5044 } 5045 --autocmd_no_enter; 5046 win_enter(firstwin, FALSE); /* back to first window */ 5047 --autocmd_no_leave; 5048 5049 /* 5050 * Close superfluous windows. 5051 */ 5052 for (wp = lastwin; open_wins > count; ) 5053 { 5054 r = (buf_hide(wp->w_buffer) || !bufIsChanged(wp->w_buffer) 5055 || autowrite(wp->w_buffer, FALSE) == OK); 5056 if (!win_valid(wp)) 5057 { 5058 /* BufWrite Autocommands made the window invalid, start over */ 5059 wp = lastwin; 5060 } 5061 else if (r) 5062 { 5063 win_close(wp, !buf_hide(wp->w_buffer)); 5064 --open_wins; 5065 wp = lastwin; 5066 } 5067 else 5068 { 5069 wp = wp->w_prev; 5070 if (wp == NULL) 5071 break; 5072 } 5073 } 5074 } 5075 5076 5077 static int chk_modeline(linenr_T, int); 5078 5079 /* 5080 * do_modelines() - process mode lines for the current file 5081 * 5082 * "flags" can be: 5083 * OPT_WINONLY only set options local to window 5084 * OPT_NOWIN don't set options local to window 5085 * 5086 * Returns immediately if the "ml" option isn't set. 5087 */ 5088 void 5089 do_modelines(int flags) 5090 { 5091 linenr_T lnum; 5092 int nmlines; 5093 static int entered = 0; 5094 5095 if (!curbuf->b_p_ml || (nmlines = (int)p_mls) == 0) 5096 return; 5097 5098 /* Disallow recursive entry here. Can happen when executing a modeline 5099 * triggers an autocommand, which reloads modelines with a ":do". */ 5100 if (entered) 5101 return; 5102 5103 ++entered; 5104 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count && lnum <= nmlines; 5105 ++lnum) 5106 if (chk_modeline(lnum, flags) == FAIL) 5107 nmlines = 0; 5108 5109 for (lnum = curbuf->b_ml.ml_line_count; lnum > 0 && lnum > nmlines 5110 && lnum > curbuf->b_ml.ml_line_count - nmlines; --lnum) 5111 if (chk_modeline(lnum, flags) == FAIL) 5112 nmlines = 0; 5113 --entered; 5114 } 5115 5116 #include "version.h" /* for version number */ 5117 5118 /* 5119 * chk_modeline() - check a single line for a mode string 5120 * Return FAIL if an error encountered. 5121 */ 5122 static int 5123 chk_modeline( 5124 linenr_T lnum, 5125 int flags) /* Same as for do_modelines(). */ 5126 { 5127 char_u *s; 5128 char_u *e; 5129 char_u *linecopy; /* local copy of any modeline found */ 5130 int prev; 5131 int vers; 5132 int end; 5133 int retval = OK; 5134 char_u *save_sourcing_name; 5135 linenr_T save_sourcing_lnum; 5136 #ifdef FEAT_EVAL 5137 sctx_T save_current_sctx; 5138 #endif 5139 5140 prev = -1; 5141 for (s = ml_get(lnum); *s != NUL; ++s) 5142 { 5143 if (prev == -1 || vim_isspace(prev)) 5144 { 5145 if ((prev != -1 && STRNCMP(s, "ex:", (size_t)3) == 0) 5146 || STRNCMP(s, "vi:", (size_t)3) == 0) 5147 break; 5148 /* Accept both "vim" and "Vim". */ 5149 if ((s[0] == 'v' || s[0] == 'V') && s[1] == 'i' && s[2] == 'm') 5150 { 5151 if (s[3] == '<' || s[3] == '=' || s[3] == '>') 5152 e = s + 4; 5153 else 5154 e = s + 3; 5155 vers = getdigits(&e); 5156 if (*e == ':' 5157 && (s[0] != 'V' 5158 || STRNCMP(skipwhite(e + 1), "set", 3) == 0) 5159 && (s[3] == ':' 5160 || (VIM_VERSION_100 >= vers && isdigit(s[3])) 5161 || (VIM_VERSION_100 < vers && s[3] == '<') 5162 || (VIM_VERSION_100 > vers && s[3] == '>') 5163 || (VIM_VERSION_100 == vers && s[3] == '='))) 5164 break; 5165 } 5166 } 5167 prev = *s; 5168 } 5169 5170 if (*s) 5171 { 5172 do /* skip over "ex:", "vi:" or "vim:" */ 5173 ++s; 5174 while (s[-1] != ':'); 5175 5176 s = linecopy = vim_strsave(s); /* copy the line, it will change */ 5177 if (linecopy == NULL) 5178 return FAIL; 5179 5180 save_sourcing_lnum = sourcing_lnum; 5181 save_sourcing_name = sourcing_name; 5182 sourcing_lnum = lnum; /* prepare for emsg() */ 5183 sourcing_name = (char_u *)"modelines"; 5184 5185 end = FALSE; 5186 while (end == FALSE) 5187 { 5188 s = skipwhite(s); 5189 if (*s == NUL) 5190 break; 5191 5192 /* 5193 * Find end of set command: ':' or end of line. 5194 * Skip over "\:", replacing it with ":". 5195 */ 5196 for (e = s; *e != ':' && *e != NUL; ++e) 5197 if (e[0] == '\\' && e[1] == ':') 5198 STRMOVE(e, e + 1); 5199 if (*e == NUL) 5200 end = TRUE; 5201 5202 /* 5203 * If there is a "set" command, require a terminating ':' and 5204 * ignore the stuff after the ':'. 5205 * "vi:set opt opt opt: foo" -- foo not interpreted 5206 * "vi:opt opt opt: foo" -- foo interpreted 5207 * Accept "se" for compatibility with Elvis. 5208 */ 5209 if (STRNCMP(s, "set ", (size_t)4) == 0 5210 || STRNCMP(s, "se ", (size_t)3) == 0) 5211 { 5212 if (*e != ':') /* no terminating ':'? */ 5213 break; 5214 end = TRUE; 5215 s = vim_strchr(s, ' ') + 1; 5216 } 5217 *e = NUL; /* truncate the set command */ 5218 5219 if (*s != NUL) /* skip over an empty "::" */ 5220 { 5221 int secure_save = secure; 5222 #ifdef FEAT_EVAL 5223 save_current_sctx = current_sctx; 5224 current_sctx.sc_sid = SID_MODELINE; 5225 current_sctx.sc_seq = 0; 5226 current_sctx.sc_lnum = 0; 5227 current_sctx.sc_version = 1; 5228 #endif 5229 // Make sure no risky things are executed as a side effect. 5230 secure = 1; 5231 5232 retval = do_set(s, OPT_MODELINE | OPT_LOCAL | flags); 5233 5234 secure = secure_save; 5235 #ifdef FEAT_EVAL 5236 current_sctx = save_current_sctx; 5237 #endif 5238 if (retval == FAIL) /* stop if error found */ 5239 break; 5240 } 5241 s = e + 1; /* advance to next part */ 5242 } 5243 5244 sourcing_lnum = save_sourcing_lnum; 5245 sourcing_name = save_sourcing_name; 5246 5247 vim_free(linecopy); 5248 } 5249 return retval; 5250 } 5251 5252 /* 5253 * Return TRUE if "buf" is a normal buffer, 'buftype' is empty. 5254 */ 5255 int 5256 bt_normal(buf_T *buf) 5257 { 5258 return buf != NULL && buf->b_p_bt[0] == NUL; 5259 } 5260 5261 #if defined(FEAT_QUICKFIX) || defined(PROTO) 5262 /* 5263 * Return TRUE if "buf" is the quickfix buffer. 5264 */ 5265 int 5266 bt_quickfix(buf_T *buf) 5267 { 5268 return buf != NULL && buf->b_p_bt[0] == 'q'; 5269 } 5270 #endif 5271 5272 #if defined(FEAT_TERMINAL) || defined(PROTO) 5273 /* 5274 * Return TRUE if "buf" is a terminal buffer. 5275 */ 5276 int 5277 bt_terminal(buf_T *buf) 5278 { 5279 return buf != NULL && buf->b_p_bt[0] == 't'; 5280 } 5281 #endif 5282 5283 /* 5284 * Return TRUE if "buf" is a help buffer. 5285 */ 5286 int 5287 bt_help(buf_T *buf) 5288 { 5289 return buf != NULL && buf->b_help; 5290 } 5291 5292 /* 5293 * Return TRUE if "buf" is a prompt buffer. 5294 */ 5295 int 5296 bt_prompt(buf_T *buf) 5297 { 5298 return buf != NULL && buf->b_p_bt[0] == 'p' && buf->b_p_bt[1] == 'r'; 5299 } 5300 5301 /* 5302 * Return TRUE if "buf" is a buffer for a popup window. 5303 */ 5304 int 5305 bt_popup(buf_T *buf) 5306 { 5307 return buf != NULL && buf->b_p_bt != NULL 5308 && buf->b_p_bt[0] == 'p' && buf->b_p_bt[1] == 'o'; 5309 } 5310 5311 /* 5312 * Return TRUE if "buf" is a "nofile", "acwrite", "terminal" or "prompt" 5313 * buffer. This means the buffer name is not a file name. 5314 */ 5315 int 5316 bt_nofilename(buf_T *buf) 5317 { 5318 return buf != NULL && ((buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f') 5319 || buf->b_p_bt[0] == 'a' 5320 || buf->b_p_bt[0] == 't' 5321 || buf->b_p_bt[0] == 'p'); 5322 } 5323 5324 /* 5325 * Return TRUE if "buf" has 'buftype' set to "nofile". 5326 */ 5327 int 5328 bt_nofile(buf_T *buf) 5329 { 5330 return buf != NULL && buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f'; 5331 } 5332 5333 /* 5334 * Return TRUE if "buf" is a "nowrite", "nofile", "terminal" or "prompt" 5335 * buffer. 5336 */ 5337 int 5338 bt_dontwrite(buf_T *buf) 5339 { 5340 return buf != NULL && (buf->b_p_bt[0] == 'n' 5341 || buf->b_p_bt[0] == 't' 5342 || buf->b_p_bt[0] == 'p'); 5343 } 5344 5345 #if defined(FEAT_QUICKFIX) || defined(PROTO) 5346 int 5347 bt_dontwrite_msg(buf_T *buf) 5348 { 5349 if (bt_dontwrite(buf)) 5350 { 5351 emsg(_("E382: Cannot write, 'buftype' option is set")); 5352 return TRUE; 5353 } 5354 return FALSE; 5355 } 5356 #endif 5357 5358 /* 5359 * Return TRUE if the buffer should be hidden, according to 'hidden', ":hide" 5360 * and 'bufhidden'. 5361 */ 5362 int 5363 buf_hide(buf_T *buf) 5364 { 5365 /* 'bufhidden' overrules 'hidden' and ":hide", check it first */ 5366 switch (buf->b_p_bh[0]) 5367 { 5368 case 'u': /* "unload" */ 5369 case 'w': /* "wipe" */ 5370 case 'd': return FALSE; /* "delete" */ 5371 case 'h': return TRUE; /* "hide" */ 5372 } 5373 return (p_hid || cmdmod.hide); 5374 } 5375 5376 /* 5377 * Return special buffer name. 5378 * Returns NULL when the buffer has a normal file name. 5379 */ 5380 char_u * 5381 buf_spname(buf_T *buf) 5382 { 5383 #if defined(FEAT_QUICKFIX) 5384 if (bt_quickfix(buf)) 5385 { 5386 /* 5387 * Differentiate between the quickfix and location list buffers using 5388 * the buffer number stored in the global quickfix stack. 5389 */ 5390 if (buf->b_fnum == qf_stack_get_bufnr()) 5391 return (char_u *)_(msg_qflist); 5392 else 5393 return (char_u *)_(msg_loclist); 5394 } 5395 #endif 5396 5397 /* There is no _file_ when 'buftype' is "nofile", b_sfname 5398 * contains the name as specified by the user. */ 5399 if (bt_nofilename(buf)) 5400 { 5401 #ifdef FEAT_TERMINAL 5402 if (buf->b_term != NULL) 5403 return term_get_status_text(buf->b_term); 5404 #endif 5405 if (buf->b_fname != NULL) 5406 return buf->b_fname; 5407 #ifdef FEAT_JOB_CHANNEL 5408 if (bt_prompt(buf)) 5409 return (char_u *)_("[Prompt]"); 5410 #endif 5411 #ifdef FEAT_TEXT_PROP 5412 if (bt_popup(buf)) 5413 return (char_u *)_("[Popup]"); 5414 #endif 5415 return (char_u *)_("[Scratch]"); 5416 } 5417 5418 if (buf->b_fname == NULL) 5419 return (char_u *)_("[No Name]"); 5420 return NULL; 5421 } 5422 5423 #if defined(FEAT_JOB_CHANNEL) \ 5424 || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 5425 || defined(PROTO) 5426 # define SWITCH_TO_WIN 5427 5428 /* 5429 * Find a window that contains "buf" and switch to it. 5430 * If there is no such window, use the current window and change "curbuf". 5431 * Caller must initialize save_curbuf to NULL. 5432 * restore_win_for_buf() MUST be called later! 5433 */ 5434 void 5435 switch_to_win_for_buf( 5436 buf_T *buf, 5437 win_T **save_curwinp, 5438 tabpage_T **save_curtabp, 5439 bufref_T *save_curbuf) 5440 { 5441 win_T *wp; 5442 tabpage_T *tp; 5443 5444 if (find_win_for_buf(buf, &wp, &tp) == FAIL) 5445 switch_buffer(save_curbuf, buf); 5446 else if (switch_win(save_curwinp, save_curtabp, wp, tp, TRUE) == FAIL) 5447 { 5448 restore_win(*save_curwinp, *save_curtabp, TRUE); 5449 switch_buffer(save_curbuf, buf); 5450 } 5451 } 5452 5453 void 5454 restore_win_for_buf( 5455 win_T *save_curwin, 5456 tabpage_T *save_curtab, 5457 bufref_T *save_curbuf) 5458 { 5459 if (save_curbuf->br_buf == NULL) 5460 restore_win(save_curwin, save_curtab, TRUE); 5461 else 5462 restore_buffer(save_curbuf); 5463 } 5464 #endif 5465 5466 #if defined(FEAT_QUICKFIX) || defined(SWITCH_TO_WIN) || defined(PROTO) 5467 /* 5468 * Find a window for buffer "buf". 5469 * If found OK is returned and "wp" and "tp" are set to the window and tabpage. 5470 * If not found FAIL is returned. 5471 */ 5472 int 5473 find_win_for_buf( 5474 buf_T *buf, 5475 win_T **wp, 5476 tabpage_T **tp) 5477 { 5478 FOR_ALL_TAB_WINDOWS(*tp, *wp) 5479 if ((*wp)->w_buffer == buf) 5480 goto win_found; 5481 return FAIL; 5482 win_found: 5483 return OK; 5484 } 5485 #endif 5486 5487 /* 5488 * Set 'buflisted' for curbuf to "on" and trigger autocommands if it changed. 5489 */ 5490 void 5491 set_buflisted(int on) 5492 { 5493 if (on != curbuf->b_p_bl) 5494 { 5495 curbuf->b_p_bl = on; 5496 if (on) 5497 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, curbuf); 5498 else 5499 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 5500 } 5501 } 5502 5503 /* 5504 * Read the file for "buf" again and check if the contents changed. 5505 * Return TRUE if it changed or this could not be checked. 5506 */ 5507 int 5508 buf_contents_changed(buf_T *buf) 5509 { 5510 buf_T *newbuf; 5511 int differ = TRUE; 5512 linenr_T lnum; 5513 aco_save_T aco; 5514 exarg_T ea; 5515 5516 /* Allocate a buffer without putting it in the buffer list. */ 5517 newbuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY); 5518 if (newbuf == NULL) 5519 return TRUE; 5520 5521 /* Force the 'fileencoding' and 'fileformat' to be equal. */ 5522 if (prep_exarg(&ea, buf) == FAIL) 5523 { 5524 wipe_buffer(newbuf, FALSE); 5525 return TRUE; 5526 } 5527 5528 /* set curwin/curbuf to buf and save a few things */ 5529 aucmd_prepbuf(&aco, newbuf); 5530 5531 if (ml_open(curbuf) == OK 5532 && readfile(buf->b_ffname, buf->b_fname, 5533 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, 5534 &ea, READ_NEW | READ_DUMMY) == OK) 5535 { 5536 /* compare the two files line by line */ 5537 if (buf->b_ml.ml_line_count == curbuf->b_ml.ml_line_count) 5538 { 5539 differ = FALSE; 5540 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) 5541 if (STRCMP(ml_get_buf(buf, lnum, FALSE), ml_get(lnum)) != 0) 5542 { 5543 differ = TRUE; 5544 break; 5545 } 5546 } 5547 } 5548 vim_free(ea.cmd); 5549 5550 /* restore curwin/curbuf and a few other things */ 5551 aucmd_restbuf(&aco); 5552 5553 if (curbuf != newbuf) /* safety check */ 5554 wipe_buffer(newbuf, FALSE); 5555 5556 return differ; 5557 } 5558 5559 /* 5560 * Wipe out a buffer and decrement the last buffer number if it was used for 5561 * this buffer. Call this to wipe out a temp buffer that does not contain any 5562 * marks. 5563 */ 5564 void 5565 wipe_buffer( 5566 buf_T *buf, 5567 int aucmd UNUSED) /* When TRUE trigger autocommands. */ 5568 { 5569 if (buf->b_fnum == top_file_num - 1) 5570 --top_file_num; 5571 5572 if (!aucmd) /* Don't trigger BufDelete autocommands here. */ 5573 block_autocmds(); 5574 5575 close_buffer(NULL, buf, DOBUF_WIPE, FALSE); 5576 5577 if (!aucmd) 5578 unblock_autocmds(); 5579 } 5580 5581 #if defined(FEAT_EVAL) || defined(PROTO) 5582 /* 5583 * Mark references in functions of buffers. 5584 */ 5585 int 5586 set_ref_in_buffers(int copyID) 5587 { 5588 int abort = FALSE; 5589 buf_T *bp; 5590 5591 FOR_ALL_BUFFERS(bp) 5592 { 5593 listener_T *lnr; 5594 typval_T tv; 5595 5596 for (lnr = bp->b_listener; !abort && lnr != NULL; lnr = lnr->lr_next) 5597 { 5598 if (lnr->lr_callback.cb_partial != NULL) 5599 { 5600 tv.v_type = VAR_PARTIAL; 5601 tv.vval.v_partial = lnr->lr_callback.cb_partial; 5602 abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL); 5603 } 5604 } 5605 # ifdef FEAT_JOB_CHANNEL 5606 if (!abort && bp->b_prompt_callback.cb_partial != NULL) 5607 { 5608 tv.v_type = VAR_PARTIAL; 5609 tv.vval.v_partial = bp->b_prompt_callback.cb_partial; 5610 abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL); 5611 } 5612 if (!abort && bp->b_prompt_interrupt.cb_partial != NULL) 5613 { 5614 tv.v_type = VAR_PARTIAL; 5615 tv.vval.v_partial = bp->b_prompt_interrupt.cb_partial; 5616 abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL); 5617 } 5618 # endif 5619 if (abort) 5620 break; 5621 } 5622 return abort; 5623 } 5624 #endif 5625