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 static void buflist_setfpos(buf_T *buf, win_T *win, linenr_T lnum, colnr_T col, int copy_options); 33 #ifdef UNIX 34 static buf_T *buflist_findname_stat(char_u *ffname, stat_T *st); 35 static int otherfile_buf(buf_T *buf, char_u *ffname, stat_T *stp); 36 static int buf_same_ino(buf_T *buf, stat_T *stp); 37 #else 38 static int otherfile_buf(buf_T *buf, char_u *ffname); 39 #endif 40 #ifdef FEAT_TITLE 41 static int value_changed(char_u *str, char_u **last); 42 #endif 43 static int append_arg_number(win_T *wp, char_u *buf, int buflen, int add_file); 44 static void free_buffer(buf_T *); 45 static void free_buffer_stuff(buf_T *buf, int free_options); 46 static void clear_wininfo(buf_T *buf); 47 48 #ifdef UNIX 49 # define dev_T dev_t 50 #else 51 # define dev_T unsigned 52 #endif 53 54 #if defined(FEAT_QUICKFIX) 55 static char *msg_loclist = N_("[Location List]"); 56 static char *msg_qflist = N_("[Quickfix List]"); 57 #endif 58 static char *e_auabort = N_("E855: Autocommands caused command to abort"); 59 60 /* Number of times free_buffer() was called. */ 61 static int buf_free_count = 0; 62 63 /* Read data from buffer for retrying. */ 64 static int 65 read_buffer( 66 int read_stdin, /* read file from stdin, otherwise fifo */ 67 exarg_T *eap, /* for forced 'ff' and 'fenc' or NULL */ 68 int flags) /* extra flags for readfile() */ 69 { 70 int retval = OK; 71 linenr_T line_count; 72 73 /* 74 * Read from the buffer which the text is already filled in and append at 75 * the end. This makes it possible to retry when 'fileformat' or 76 * 'fileencoding' was guessed wrong. 77 */ 78 line_count = curbuf->b_ml.ml_line_count; 79 retval = readfile( 80 read_stdin ? NULL : curbuf->b_ffname, 81 read_stdin ? NULL : curbuf->b_fname, 82 (linenr_T)line_count, (linenr_T)0, (linenr_T)MAXLNUM, eap, 83 flags | READ_BUFFER); 84 if (retval == OK) 85 { 86 /* Delete the binary lines. */ 87 while (--line_count >= 0) 88 ml_delete((linenr_T)1, FALSE); 89 } 90 else 91 { 92 /* Delete the converted lines. */ 93 while (curbuf->b_ml.ml_line_count > line_count) 94 ml_delete(line_count, FALSE); 95 } 96 /* Put the cursor on the first line. */ 97 curwin->w_cursor.lnum = 1; 98 curwin->w_cursor.col = 0; 99 100 if (read_stdin) 101 { 102 /* Set or reset 'modified' before executing autocommands, so that 103 * it can be changed there. */ 104 if (!readonlymode && !BUFEMPTY()) 105 changed(); 106 else if (retval == OK) 107 unchanged(curbuf, FALSE); 108 109 if (retval == OK) 110 { 111 #ifdef FEAT_EVAL 112 apply_autocmds_retval(EVENT_STDINREADPOST, NULL, NULL, FALSE, 113 curbuf, &retval); 114 #else 115 apply_autocmds(EVENT_STDINREADPOST, NULL, NULL, FALSE, curbuf); 116 #endif 117 } 118 } 119 return retval; 120 } 121 122 /* 123 * Open current buffer, that is: open the memfile and read the file into 124 * memory. 125 * Return FAIL for failure, OK otherwise. 126 */ 127 int 128 open_buffer( 129 int read_stdin, /* read file from stdin */ 130 exarg_T *eap, /* for forced 'ff' and 'fenc' or NULL */ 131 int flags) /* extra flags for readfile() */ 132 { 133 int retval = OK; 134 bufref_T old_curbuf; 135 #ifdef FEAT_SYN_HL 136 long old_tw = curbuf->b_p_tw; 137 #endif 138 int read_fifo = FALSE; 139 140 /* 141 * The 'readonly' flag is only set when BF_NEVERLOADED is being reset. 142 * When re-entering the same buffer, it should not change, because the 143 * user may have reset the flag by hand. 144 */ 145 if (readonlymode && curbuf->b_ffname != NULL 146 && (curbuf->b_flags & BF_NEVERLOADED)) 147 curbuf->b_p_ro = TRUE; 148 149 if (ml_open(curbuf) == FAIL) 150 { 151 /* 152 * There MUST be a memfile, otherwise we can't do anything 153 * If we can't create one for the current buffer, take another buffer 154 */ 155 close_buffer(NULL, curbuf, 0, FALSE); 156 FOR_ALL_BUFFERS(curbuf) 157 if (curbuf->b_ml.ml_mfp != NULL) 158 break; 159 /* 160 * if there is no memfile at all, exit 161 * This is OK, since there are no changes to lose. 162 */ 163 if (curbuf == NULL) 164 { 165 emsg(_("E82: Cannot allocate any buffer, exiting...")); 166 getout(2); 167 } 168 emsg(_("E83: Cannot allocate buffer, using other one...")); 169 enter_buffer(curbuf); 170 #ifdef FEAT_SYN_HL 171 if (old_tw != curbuf->b_p_tw) 172 check_colorcolumn(curwin); 173 #endif 174 return FAIL; 175 } 176 177 /* The autocommands in readfile() may change the buffer, but only AFTER 178 * reading the file. */ 179 set_bufref(&old_curbuf, curbuf); 180 modified_was_set = FALSE; 181 182 /* mark cursor position as being invalid */ 183 curwin->w_valid = 0; 184 185 if (curbuf->b_ffname != NULL 186 #ifdef FEAT_NETBEANS_INTG 187 && netbeansReadFile 188 #endif 189 ) 190 { 191 int old_msg_silent = msg_silent; 192 #ifdef UNIX 193 int save_bin = curbuf->b_p_bin; 194 int perm; 195 #endif 196 #ifdef FEAT_NETBEANS_INTG 197 int oldFire = netbeansFireChanges; 198 199 netbeansFireChanges = 0; 200 #endif 201 #ifdef UNIX 202 perm = mch_getperm(curbuf->b_ffname); 203 if (perm >= 0 && (S_ISFIFO(perm) 204 || S_ISSOCK(perm) 205 # ifdef OPEN_CHR_FILES 206 || (S_ISCHR(perm) && is_dev_fd_file(curbuf->b_ffname)) 207 # endif 208 )) 209 read_fifo = TRUE; 210 if (read_fifo) 211 curbuf->b_p_bin = TRUE; 212 #endif 213 if (shortmess(SHM_FILEINFO)) 214 msg_silent = 1; 215 retval = readfile(curbuf->b_ffname, curbuf->b_fname, 216 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap, 217 flags | READ_NEW | (read_fifo ? READ_FIFO : 0)); 218 #ifdef UNIX 219 if (read_fifo) 220 { 221 curbuf->b_p_bin = save_bin; 222 if (retval == OK) 223 retval = read_buffer(FALSE, eap, flags); 224 } 225 #endif 226 msg_silent = old_msg_silent; 227 #ifdef FEAT_NETBEANS_INTG 228 netbeansFireChanges = oldFire; 229 #endif 230 /* Help buffer is filtered. */ 231 if (bt_help(curbuf)) 232 fix_help_buffer(); 233 } 234 else if (read_stdin) 235 { 236 int save_bin = curbuf->b_p_bin; 237 238 /* 239 * First read the text in binary mode into the buffer. 240 * Then read from that same buffer and append at the end. This makes 241 * it possible to retry when 'fileformat' or 'fileencoding' was 242 * guessed wrong. 243 */ 244 curbuf->b_p_bin = TRUE; 245 retval = readfile(NULL, NULL, (linenr_T)0, 246 (linenr_T)0, (linenr_T)MAXLNUM, NULL, 247 flags | (READ_NEW + READ_STDIN)); 248 curbuf->b_p_bin = save_bin; 249 if (retval == OK) 250 retval = read_buffer(TRUE, eap, flags); 251 } 252 253 /* if first time loading this buffer, init b_chartab[] */ 254 if (curbuf->b_flags & BF_NEVERLOADED) 255 { 256 (void)buf_init_chartab(curbuf, FALSE); 257 #ifdef FEAT_CINDENT 258 parse_cino(curbuf); 259 #endif 260 } 261 262 /* 263 * Set/reset the Changed flag first, autocmds may change the buffer. 264 * Apply the automatic commands, before processing the modelines. 265 * So the modelines have priority over autocommands. 266 */ 267 /* When reading stdin, the buffer contents always needs writing, so set 268 * the changed flag. Unless in readonly mode: "ls | gview -". 269 * When interrupted and 'cpoptions' contains 'i' set changed flag. */ 270 if ((got_int && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 271 || modified_was_set /* ":set modified" used in autocmd */ 272 #ifdef FEAT_EVAL 273 || (aborting() && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 274 #endif 275 ) 276 changed(); 277 else if (retval == OK && !read_stdin && !read_fifo) 278 unchanged(curbuf, FALSE); 279 save_file_ff(curbuf); /* keep this fileformat */ 280 281 /* Set last_changedtick to avoid triggering a TextChanged autocommand right 282 * after it was added. */ 283 curbuf->b_last_changedtick = CHANGEDTICK(curbuf); 284 #ifdef FEAT_INS_EXPAND 285 curbuf->b_last_changedtick_pum = CHANGEDTICK(curbuf); 286 #endif 287 288 /* require "!" to overwrite the file, because it wasn't read completely */ 289 #ifdef FEAT_EVAL 290 if (aborting()) 291 #else 292 if (got_int) 293 #endif 294 curbuf->b_flags |= BF_READERR; 295 296 #ifdef FEAT_FOLDING 297 /* Need to update automatic folding. Do this before the autocommands, 298 * they may use the fold info. */ 299 foldUpdateAll(curwin); 300 #endif 301 302 /* need to set w_topline, unless some autocommand already did that. */ 303 if (!(curwin->w_valid & VALID_TOPLINE)) 304 { 305 curwin->w_topline = 1; 306 #ifdef FEAT_DIFF 307 curwin->w_topfill = 0; 308 #endif 309 } 310 #ifdef FEAT_EVAL 311 apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, &retval); 312 #else 313 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 314 #endif 315 316 if (retval == OK) 317 { 318 /* 319 * The autocommands may have changed the current buffer. Apply the 320 * modelines to the correct buffer, if it still exists and is loaded. 321 */ 322 if (bufref_valid(&old_curbuf) && old_curbuf.br_buf->b_ml.ml_mfp != NULL) 323 { 324 aco_save_T aco; 325 326 /* Go to the buffer that was opened. */ 327 aucmd_prepbuf(&aco, old_curbuf.br_buf); 328 do_modelines(0); 329 curbuf->b_flags &= ~(BF_CHECK_RO | BF_NEVERLOADED); 330 331 #ifdef FEAT_EVAL 332 apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf, 333 &retval); 334 #else 335 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 336 #endif 337 338 /* restore curwin/curbuf and a few other things */ 339 aucmd_restbuf(&aco); 340 } 341 } 342 343 return retval; 344 } 345 346 /* 347 * Store "buf" in "bufref" and set the free count. 348 */ 349 void 350 set_bufref(bufref_T *bufref, buf_T *buf) 351 { 352 bufref->br_buf = buf; 353 bufref->br_fnum = buf == NULL ? 0 : buf->b_fnum; 354 bufref->br_buf_free_count = buf_free_count; 355 } 356 357 /* 358 * Return TRUE if "bufref->br_buf" points to the same buffer as when 359 * set_bufref() was called and it is a valid buffer. 360 * Only goes through the buffer list if buf_free_count changed. 361 * Also checks if b_fnum is still the same, a :bwipe followed by :new might get 362 * the same allocated memory, but it's a different buffer. 363 */ 364 int 365 bufref_valid(bufref_T *bufref) 366 { 367 return bufref->br_buf_free_count == buf_free_count 368 ? TRUE : buf_valid(bufref->br_buf) 369 && bufref->br_fnum == bufref->br_buf->b_fnum; 370 } 371 372 /* 373 * Return TRUE if "buf" points to a valid buffer (in the buffer list). 374 * This can be slow if there are many buffers, prefer using bufref_valid(). 375 */ 376 int 377 buf_valid(buf_T *buf) 378 { 379 buf_T *bp; 380 381 /* Assume that we more often have a recent buffer, start with the last 382 * one. */ 383 for (bp = lastbuf; bp != NULL; bp = bp->b_prev) 384 if (bp == buf) 385 return TRUE; 386 return FALSE; 387 } 388 389 /* 390 * A hash table used to quickly lookup a buffer by its number. 391 */ 392 static hashtab_T buf_hashtab; 393 394 static void 395 buf_hashtab_add(buf_T *buf) 396 { 397 sprintf((char *)buf->b_key, "%x", buf->b_fnum); 398 if (hash_add(&buf_hashtab, buf->b_key) == FAIL) 399 emsg(_("E931: Buffer cannot be registered")); 400 } 401 402 static void 403 buf_hashtab_remove(buf_T *buf) 404 { 405 hashitem_T *hi = hash_find(&buf_hashtab, buf->b_key); 406 407 if (!HASHITEM_EMPTY(hi)) 408 hash_remove(&buf_hashtab, hi); 409 } 410 411 /* 412 * Return TRUE when buffer "buf" can be unloaded. 413 * Give an error message and return FALSE when the buffer is locked or the 414 * screen is being redrawn and the buffer is in a window. 415 */ 416 static int 417 can_unload_buffer(buf_T *buf) 418 { 419 int can_unload = !buf->b_locked; 420 421 if (can_unload && updating_screen) 422 { 423 win_T *wp; 424 425 FOR_ALL_WINDOWS(wp) 426 if (wp->w_buffer == buf) 427 { 428 can_unload = FALSE; 429 break; 430 } 431 } 432 if (!can_unload) 433 emsg(_("E937: Attempt to delete a buffer that is in use")); 434 return can_unload; 435 } 436 437 /* 438 * Close the link to a buffer. 439 * "action" is used when there is no longer a window for the buffer. 440 * It can be: 441 * 0 buffer becomes hidden 442 * DOBUF_UNLOAD buffer is unloaded 443 * DOBUF_DELETE buffer is unloaded and removed from buffer list 444 * DOBUF_WIPE buffer is unloaded and really deleted 445 * When doing all but the first one on the current buffer, the caller should 446 * get a new buffer very soon! 447 * 448 * The 'bufhidden' option can force freeing and deleting. 449 * 450 * When "abort_if_last" is TRUE then do not close the buffer if autocommands 451 * cause there to be only one window with this buffer. e.g. when ":quit" is 452 * supposed to close the window but autocommands close all other windows. 453 */ 454 void 455 close_buffer( 456 win_T *win, /* if not NULL, set b_last_cursor */ 457 buf_T *buf, 458 int action, 459 int abort_if_last UNUSED) 460 { 461 int is_curbuf; 462 int nwindows; 463 bufref_T bufref; 464 int is_curwin = (curwin != NULL && curwin->w_buffer == buf); 465 win_T *the_curwin = curwin; 466 tabpage_T *the_curtab = curtab; 467 int unload_buf = (action != 0); 468 int del_buf = (action == DOBUF_DEL || action == DOBUF_WIPE); 469 int wipe_buf = (action == DOBUF_WIPE); 470 471 /* 472 * Force unloading or deleting when 'bufhidden' says so. 473 * The caller must take care of NOT deleting/freeing when 'bufhidden' is 474 * "hide" (otherwise we could never free or delete a buffer). 475 */ 476 if (buf->b_p_bh[0] == 'd') /* 'bufhidden' == "delete" */ 477 { 478 del_buf = TRUE; 479 unload_buf = TRUE; 480 } 481 else if (buf->b_p_bh[0] == 'w') /* 'bufhidden' == "wipe" */ 482 { 483 del_buf = TRUE; 484 unload_buf = TRUE; 485 wipe_buf = TRUE; 486 } 487 else if (buf->b_p_bh[0] == 'u') /* 'bufhidden' == "unload" */ 488 unload_buf = TRUE; 489 490 #ifdef FEAT_TERMINAL 491 if (bt_terminal(buf) && (buf->b_nwindows == 1 || del_buf)) 492 { 493 if (term_job_running(buf->b_term)) 494 { 495 if (wipe_buf || unload_buf) 496 { 497 if (!can_unload_buffer(buf)) 498 return; 499 500 /* Wiping out or unloading a terminal buffer kills the job. */ 501 free_terminal(buf); 502 } 503 else 504 { 505 /* The job keeps running, hide the buffer. */ 506 del_buf = FALSE; 507 unload_buf = FALSE; 508 } 509 } 510 else 511 { 512 /* A terminal buffer is wiped out if the job has finished. */ 513 del_buf = TRUE; 514 unload_buf = TRUE; 515 wipe_buf = TRUE; 516 } 517 } 518 #endif 519 520 /* Disallow deleting the buffer when it is locked (already being closed or 521 * halfway a command that relies on it). Unloading is allowed. */ 522 if ((del_buf || wipe_buf) && !can_unload_buffer(buf)) 523 return; 524 525 /* check no autocommands closed the window */ 526 if (win != NULL && win_valid_any_tab(win)) 527 { 528 /* Set b_last_cursor when closing the last window for the buffer. 529 * Remember the last cursor position and window options of the buffer. 530 * This used to be only for the current window, but then options like 531 * 'foldmethod' may be lost with a ":only" command. */ 532 if (buf->b_nwindows == 1) 533 set_last_cursor(win); 534 buflist_setfpos(buf, win, 535 win->w_cursor.lnum == 1 ? 0 : win->w_cursor.lnum, 536 win->w_cursor.col, TRUE); 537 } 538 539 set_bufref(&bufref, buf); 540 541 /* When the buffer is no longer in a window, trigger BufWinLeave */ 542 if (buf->b_nwindows == 1) 543 { 544 ++buf->b_locked; 545 if (apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname, 546 FALSE, buf) 547 && !bufref_valid(&bufref)) 548 { 549 /* Autocommands deleted the buffer. */ 550 aucmd_abort: 551 emsg(_(e_auabort)); 552 return; 553 } 554 --buf->b_locked; 555 if (abort_if_last && one_window()) 556 /* Autocommands made this the only window. */ 557 goto aucmd_abort; 558 559 /* When the buffer becomes hidden, but is not unloaded, trigger 560 * BufHidden */ 561 if (!unload_buf) 562 { 563 ++buf->b_locked; 564 if (apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname, 565 FALSE, buf) 566 && !bufref_valid(&bufref)) 567 /* Autocommands deleted the buffer. */ 568 goto aucmd_abort; 569 --buf->b_locked; 570 if (abort_if_last && one_window()) 571 /* Autocommands made this the only window. */ 572 goto aucmd_abort; 573 } 574 #ifdef FEAT_EVAL 575 if (aborting()) /* autocmds may abort script processing */ 576 return; 577 #endif 578 } 579 580 /* If the buffer was in curwin and the window has changed, go back to that 581 * window, if it still exists. This avoids that ":edit x" triggering a 582 * "tabnext" BufUnload autocmd leaves a window behind without a buffer. */ 583 if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin)) 584 { 585 block_autocmds(); 586 goto_tabpage_win(the_curtab, the_curwin); 587 unblock_autocmds(); 588 } 589 590 nwindows = buf->b_nwindows; 591 592 /* decrease the link count from windows (unless not in any window) */ 593 if (buf->b_nwindows > 0) 594 --buf->b_nwindows; 595 596 #ifdef FEAT_DIFF 597 if (diffopt_hiddenoff() && !unload_buf && buf->b_nwindows == 0) 598 diff_buf_delete(buf); /* Clear 'diff' for hidden buffer. */ 599 #endif 600 601 /* Return when a window is displaying the buffer or when it's not 602 * unloaded. */ 603 if (buf->b_nwindows > 0 || !unload_buf) 604 return; 605 606 /* Always remove the buffer when there is no file name. */ 607 if (buf->b_ffname == NULL) 608 del_buf = TRUE; 609 610 /* When closing the current buffer stop Visual mode before freeing 611 * anything. */ 612 if (buf == curbuf && VIsual_active 613 #if defined(EXITFREE) 614 && !entered_free_all_mem 615 #endif 616 ) 617 end_visual_mode(); 618 619 /* 620 * Free all things allocated for this buffer. 621 * Also calls the "BufDelete" autocommands when del_buf is TRUE. 622 */ 623 /* Remember if we are closing the current buffer. Restore the number of 624 * windows, so that autocommands in buf_freeall() don't get confused. */ 625 is_curbuf = (buf == curbuf); 626 buf->b_nwindows = nwindows; 627 628 buf_freeall(buf, (del_buf ? BFA_DEL : 0) + (wipe_buf ? BFA_WIPE : 0)); 629 630 /* Autocommands may have deleted the buffer. */ 631 if (!bufref_valid(&bufref)) 632 return; 633 #ifdef FEAT_EVAL 634 if (aborting()) /* autocmds may abort script processing */ 635 return; 636 #endif 637 638 /* 639 * It's possible that autocommands change curbuf to the one being deleted. 640 * This might cause the previous curbuf to be deleted unexpectedly. But 641 * in some cases it's OK to delete the curbuf, because a new one is 642 * obtained anyway. Therefore only return if curbuf changed to the 643 * deleted buffer. 644 */ 645 if (buf == curbuf && !is_curbuf) 646 return; 647 648 if (win_valid_any_tab(win) && win->w_buffer == buf) 649 win->w_buffer = NULL; /* make sure we don't use the buffer now */ 650 651 /* Autocommands may have opened or closed windows for this buffer. 652 * Decrement the count for the close we do here. */ 653 if (buf->b_nwindows > 0) 654 --buf->b_nwindows; 655 656 /* 657 * Remove the buffer from the list. 658 */ 659 if (wipe_buf) 660 { 661 if (buf->b_sfname != buf->b_ffname) 662 VIM_CLEAR(buf->b_sfname); 663 else 664 buf->b_sfname = NULL; 665 VIM_CLEAR(buf->b_ffname); 666 if (buf->b_prev == NULL) 667 firstbuf = buf->b_next; 668 else 669 buf->b_prev->b_next = buf->b_next; 670 if (buf->b_next == NULL) 671 lastbuf = buf->b_prev; 672 else 673 buf->b_next->b_prev = buf->b_prev; 674 free_buffer(buf); 675 } 676 else 677 { 678 if (del_buf) 679 { 680 /* Free all internal variables and reset option values, to make 681 * ":bdel" compatible with Vim 5.7. */ 682 free_buffer_stuff(buf, TRUE); 683 684 /* Make it look like a new buffer. */ 685 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 686 687 /* Init the options when loaded again. */ 688 buf->b_p_initialized = FALSE; 689 } 690 buf_clear_file(buf); 691 if (del_buf) 692 buf->b_p_bl = FALSE; 693 } 694 } 695 696 /* 697 * Make buffer not contain a file. 698 */ 699 void 700 buf_clear_file(buf_T *buf) 701 { 702 buf->b_ml.ml_line_count = 1; 703 unchanged(buf, TRUE); 704 buf->b_shortname = FALSE; 705 buf->b_p_eol = TRUE; 706 buf->b_start_eol = TRUE; 707 buf->b_p_bomb = FALSE; 708 buf->b_start_bomb = FALSE; 709 buf->b_ml.ml_mfp = NULL; 710 buf->b_ml.ml_flags = ML_EMPTY; /* empty buffer */ 711 #ifdef FEAT_NETBEANS_INTG 712 netbeans_deleted_all_lines(buf); 713 #endif 714 } 715 716 /* 717 * buf_freeall() - free all things allocated for a buffer that are related to 718 * the file. Careful: get here with "curwin" NULL when exiting. 719 * flags: 720 * BFA_DEL buffer is going to be deleted 721 * BFA_WIPE buffer is going to be wiped out 722 * BFA_KEEP_UNDO do not free undo information 723 */ 724 void 725 buf_freeall(buf_T *buf, int flags) 726 { 727 int is_curbuf = (buf == curbuf); 728 bufref_T bufref; 729 int is_curwin = (curwin != NULL && curwin->w_buffer == buf); 730 win_T *the_curwin = curwin; 731 tabpage_T *the_curtab = curtab; 732 733 /* Make sure the buffer isn't closed by autocommands. */ 734 ++buf->b_locked; 735 set_bufref(&bufref, buf); 736 if (buf->b_ml.ml_mfp != NULL) 737 { 738 if (apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, 739 FALSE, buf) 740 && !bufref_valid(&bufref)) 741 /* autocommands deleted the buffer */ 742 return; 743 } 744 if ((flags & BFA_DEL) && buf->b_p_bl) 745 { 746 if (apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname, 747 FALSE, buf) 748 && !bufref_valid(&bufref)) 749 /* autocommands deleted the buffer */ 750 return; 751 } 752 if (flags & BFA_WIPE) 753 { 754 if (apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname, 755 FALSE, buf) 756 && !bufref_valid(&bufref)) 757 /* autocommands deleted the buffer */ 758 return; 759 } 760 --buf->b_locked; 761 762 /* If the buffer was in curwin and the window has changed, go back to that 763 * window, if it still exists. This avoids that ":edit x" triggering a 764 * "tabnext" BufUnload autocmd leaves a window behind without a buffer. */ 765 if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin)) 766 { 767 block_autocmds(); 768 goto_tabpage_win(the_curtab, the_curwin); 769 unblock_autocmds(); 770 } 771 772 #ifdef FEAT_EVAL 773 if (aborting()) /* autocmds may abort script processing */ 774 return; 775 #endif 776 777 /* 778 * It's possible that autocommands change curbuf to the one being deleted. 779 * This might cause curbuf to be deleted unexpectedly. But in some cases 780 * it's OK to delete the curbuf, because a new one is obtained anyway. 781 * Therefore only return if curbuf changed to the deleted buffer. 782 */ 783 if (buf == curbuf && !is_curbuf) 784 return; 785 #ifdef FEAT_DIFF 786 diff_buf_delete(buf); /* Can't use 'diff' for unloaded buffer. */ 787 #endif 788 #ifdef FEAT_SYN_HL 789 /* Remove any ownsyntax, unless exiting. */ 790 if (curwin != NULL && curwin->w_buffer == buf) 791 reset_synblock(curwin); 792 #endif 793 794 #ifdef FEAT_FOLDING 795 /* No folds in an empty buffer. */ 796 { 797 win_T *win; 798 tabpage_T *tp; 799 800 FOR_ALL_TAB_WINDOWS(tp, win) 801 if (win->w_buffer == buf) 802 clearFolding(win); 803 } 804 #endif 805 806 #ifdef FEAT_TCL 807 tcl_buffer_free(buf); 808 #endif 809 ml_close(buf, TRUE); /* close and delete the memline/memfile */ 810 buf->b_ml.ml_line_count = 0; /* no lines in buffer */ 811 if ((flags & BFA_KEEP_UNDO) == 0) 812 { 813 u_blockfree(buf); /* free the memory allocated for undo */ 814 u_clearall(buf); /* reset all undo information */ 815 } 816 #ifdef FEAT_SYN_HL 817 syntax_clear(&buf->b_s); /* reset syntax info */ 818 #endif 819 #ifdef FEAT_TEXT_PROP 820 clear_buf_prop_types(buf); 821 #endif 822 buf->b_flags &= ~BF_READERR; /* a read error is no longer relevant */ 823 } 824 825 /* 826 * Free a buffer structure and the things it contains related to the buffer 827 * itself (not the file, that must have been done already). 828 */ 829 static void 830 free_buffer(buf_T *buf) 831 { 832 ++buf_free_count; 833 free_buffer_stuff(buf, TRUE); 834 #ifdef FEAT_EVAL 835 /* b:changedtick uses an item in buf_T, remove it now */ 836 dictitem_remove(buf->b_vars, (dictitem_T *)&buf->b_ct_di); 837 unref_var_dict(buf->b_vars); 838 #endif 839 #ifdef FEAT_LUA 840 lua_buffer_free(buf); 841 #endif 842 #ifdef FEAT_MZSCHEME 843 mzscheme_buffer_free(buf); 844 #endif 845 #ifdef FEAT_PERL 846 perl_buf_free(buf); 847 #endif 848 #ifdef FEAT_PYTHON 849 python_buffer_free(buf); 850 #endif 851 #ifdef FEAT_PYTHON3 852 python3_buffer_free(buf); 853 #endif 854 #ifdef FEAT_RUBY 855 ruby_buffer_free(buf); 856 #endif 857 #ifdef FEAT_JOB_CHANNEL 858 channel_buffer_free(buf); 859 #endif 860 #ifdef FEAT_TERMINAL 861 free_terminal(buf); 862 #endif 863 #ifdef FEAT_JOB_CHANNEL 864 vim_free(buf->b_prompt_text); 865 free_callback(buf->b_prompt_callback, buf->b_prompt_partial); 866 #endif 867 868 buf_hashtab_remove(buf); 869 870 aubuflocal_remove(buf); 871 872 if (autocmd_busy) 873 { 874 /* Do not free the buffer structure while autocommands are executing, 875 * it's still needed. Free it when autocmd_busy is reset. */ 876 buf->b_next = au_pending_free_buf; 877 au_pending_free_buf = buf; 878 } 879 else 880 vim_free(buf); 881 } 882 883 /* 884 * Initializes b:changedtick. 885 */ 886 static void 887 init_changedtick(buf_T *buf) 888 { 889 dictitem_T *di = (dictitem_T *)&buf->b_ct_di; 890 891 di->di_flags = DI_FLAGS_FIX | DI_FLAGS_RO; 892 di->di_tv.v_type = VAR_NUMBER; 893 di->di_tv.v_lock = VAR_FIXED; 894 di->di_tv.vval.v_number = 0; 895 896 #ifdef FEAT_EVAL 897 STRCPY(buf->b_ct_di.di_key, "changedtick"); 898 (void)dict_add(buf->b_vars, di); 899 #endif 900 } 901 902 /* 903 * Free stuff in the buffer for ":bdel" and when wiping out the buffer. 904 */ 905 static void 906 free_buffer_stuff( 907 buf_T *buf, 908 int free_options) /* free options as well */ 909 { 910 if (free_options) 911 { 912 clear_wininfo(buf); /* including window-local options */ 913 free_buf_options(buf, TRUE); 914 #ifdef FEAT_SPELL 915 ga_clear(&buf->b_s.b_langp); 916 #endif 917 } 918 #ifdef FEAT_EVAL 919 { 920 varnumber_T tick = CHANGEDTICK(buf); 921 922 vars_clear(&buf->b_vars->dv_hashtab); /* free all buffer variables */ 923 hash_init(&buf->b_vars->dv_hashtab); 924 init_changedtick(buf); 925 CHANGEDTICK(buf) = tick; 926 } 927 #endif 928 uc_clear(&buf->b_ucmds); // clear local user commands 929 #ifdef FEAT_SIGNS 930 buf_delete_signs(buf, (char_u *)"*"); // delete any signs 931 #endif 932 #ifdef FEAT_NETBEANS_INTG 933 netbeans_file_killed(buf); 934 #endif 935 #ifdef FEAT_LOCALMAP 936 map_clear_int(buf, MAP_ALL_MODES, TRUE, FALSE); /* clear local mappings */ 937 map_clear_int(buf, MAP_ALL_MODES, TRUE, TRUE); /* clear local abbrevs */ 938 #endif 939 VIM_CLEAR(buf->b_start_fenc); 940 } 941 942 /* 943 * Free the b_wininfo list for buffer "buf". 944 */ 945 static void 946 clear_wininfo(buf_T *buf) 947 { 948 wininfo_T *wip; 949 950 while (buf->b_wininfo != NULL) 951 { 952 wip = buf->b_wininfo; 953 buf->b_wininfo = wip->wi_next; 954 if (wip->wi_optset) 955 { 956 clear_winopt(&wip->wi_opt); 957 #ifdef FEAT_FOLDING 958 deleteFoldRecurse(&wip->wi_folds); 959 #endif 960 } 961 vim_free(wip); 962 } 963 } 964 965 /* 966 * Go to another buffer. Handles the result of the ATTENTION dialog. 967 */ 968 void 969 goto_buffer( 970 exarg_T *eap, 971 int start, 972 int dir, 973 int count) 974 { 975 #if defined(HAS_SWAP_EXISTS_ACTION) 976 bufref_T old_curbuf; 977 978 set_bufref(&old_curbuf, curbuf); 979 980 swap_exists_action = SEA_DIALOG; 981 #endif 982 (void)do_buffer(*eap->cmd == 's' ? DOBUF_SPLIT : DOBUF_GOTO, 983 start, dir, count, eap->forceit); 984 #if defined(HAS_SWAP_EXISTS_ACTION) 985 if (swap_exists_action == SEA_QUIT && *eap->cmd == 's') 986 { 987 # if defined(FEAT_EVAL) 988 cleanup_T cs; 989 990 /* Reset the error/interrupt/exception state here so that 991 * aborting() returns FALSE when closing a window. */ 992 enter_cleanup(&cs); 993 # endif 994 995 /* Quitting means closing the split window, nothing else. */ 996 win_close(curwin, TRUE); 997 swap_exists_action = SEA_NONE; 998 swap_exists_did_quit = TRUE; 999 1000 # if defined(FEAT_EVAL) 1001 /* Restore the error/interrupt/exception state if not discarded by a 1002 * new aborting error, interrupt, or uncaught exception. */ 1003 leave_cleanup(&cs); 1004 # endif 1005 } 1006 else 1007 handle_swap_exists(&old_curbuf); 1008 #endif 1009 } 1010 1011 #if defined(HAS_SWAP_EXISTS_ACTION) || defined(PROTO) 1012 /* 1013 * Handle the situation of swap_exists_action being set. 1014 * It is allowed for "old_curbuf" to be NULL or invalid. 1015 */ 1016 void 1017 handle_swap_exists(bufref_T *old_curbuf) 1018 { 1019 # if defined(FEAT_EVAL) 1020 cleanup_T cs; 1021 # endif 1022 # ifdef FEAT_SYN_HL 1023 long old_tw = curbuf->b_p_tw; 1024 # endif 1025 buf_T *buf; 1026 1027 if (swap_exists_action == SEA_QUIT) 1028 { 1029 # if defined(FEAT_EVAL) 1030 /* Reset the error/interrupt/exception state here so that 1031 * aborting() returns FALSE when closing a buffer. */ 1032 enter_cleanup(&cs); 1033 # endif 1034 1035 /* User selected Quit at ATTENTION prompt. Go back to previous 1036 * buffer. If that buffer is gone or the same as the current one, 1037 * open a new, empty buffer. */ 1038 swap_exists_action = SEA_NONE; /* don't want it again */ 1039 swap_exists_did_quit = TRUE; 1040 close_buffer(curwin, curbuf, DOBUF_UNLOAD, FALSE); 1041 if (old_curbuf == NULL || !bufref_valid(old_curbuf) 1042 || old_curbuf->br_buf == curbuf) 1043 buf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED); 1044 else 1045 buf = old_curbuf->br_buf; 1046 if (buf != NULL) 1047 { 1048 int old_msg_silent = msg_silent; 1049 1050 if (shortmess(SHM_FILEINFO)) 1051 msg_silent = 1; // prevent fileinfo message 1052 enter_buffer(buf); 1053 // restore msg_silent, so that the command line will be shown 1054 msg_silent = old_msg_silent; 1055 1056 # ifdef FEAT_SYN_HL 1057 if (old_tw != curbuf->b_p_tw) 1058 check_colorcolumn(curwin); 1059 # endif 1060 } 1061 /* If "old_curbuf" is NULL we are in big trouble here... */ 1062 1063 # if defined(FEAT_EVAL) 1064 /* Restore the error/interrupt/exception state if not discarded by a 1065 * new aborting error, interrupt, or uncaught exception. */ 1066 leave_cleanup(&cs); 1067 # endif 1068 } 1069 else if (swap_exists_action == SEA_RECOVER) 1070 { 1071 # if defined(FEAT_EVAL) 1072 /* Reset the error/interrupt/exception state here so that 1073 * aborting() returns FALSE when closing a buffer. */ 1074 enter_cleanup(&cs); 1075 # endif 1076 1077 /* User selected Recover at ATTENTION prompt. */ 1078 msg_scroll = TRUE; 1079 ml_recover(); 1080 msg_puts("\n"); /* don't overwrite the last message */ 1081 cmdline_row = msg_row; 1082 do_modelines(0); 1083 1084 # if defined(FEAT_EVAL) 1085 /* Restore the error/interrupt/exception state if not discarded by a 1086 * new aborting error, interrupt, or uncaught exception. */ 1087 leave_cleanup(&cs); 1088 # endif 1089 } 1090 swap_exists_action = SEA_NONE; 1091 } 1092 #endif 1093 1094 /* 1095 * do_bufdel() - delete or unload buffer(s) 1096 * 1097 * addr_count == 0: ":bdel" - delete current buffer 1098 * addr_count == 1: ":N bdel" or ":bdel N [N ..]" - first delete 1099 * buffer "end_bnr", then any other arguments. 1100 * addr_count == 2: ":N,N bdel" - delete buffers in range 1101 * 1102 * command can be DOBUF_UNLOAD (":bunload"), DOBUF_WIPE (":bwipeout") or 1103 * DOBUF_DEL (":bdel") 1104 * 1105 * Returns error message or NULL 1106 */ 1107 char * 1108 do_bufdel( 1109 int command, 1110 char_u *arg, /* pointer to extra arguments */ 1111 int addr_count, 1112 int start_bnr, /* first buffer number in a range */ 1113 int end_bnr, /* buffer nr or last buffer nr in a range */ 1114 int forceit) 1115 { 1116 int do_current = 0; /* delete current buffer? */ 1117 int deleted = 0; /* number of buffers deleted */ 1118 char *errormsg = NULL; /* return value */ 1119 int bnr; /* buffer number */ 1120 char_u *p; 1121 1122 if (addr_count == 0) 1123 { 1124 (void)do_buffer(command, DOBUF_CURRENT, FORWARD, 0, forceit); 1125 } 1126 else 1127 { 1128 if (addr_count == 2) 1129 { 1130 if (*arg) /* both range and argument is not allowed */ 1131 return _(e_trailing); 1132 bnr = start_bnr; 1133 } 1134 else /* addr_count == 1 */ 1135 bnr = end_bnr; 1136 1137 for ( ;!got_int; ui_breakcheck()) 1138 { 1139 /* 1140 * delete the current buffer last, otherwise when the 1141 * current buffer is deleted, the next buffer becomes 1142 * the current one and will be loaded, which may then 1143 * also be deleted, etc. 1144 */ 1145 if (bnr == curbuf->b_fnum) 1146 do_current = bnr; 1147 else if (do_buffer(command, DOBUF_FIRST, FORWARD, (int)bnr, 1148 forceit) == OK) 1149 ++deleted; 1150 1151 /* 1152 * find next buffer number to delete/unload 1153 */ 1154 if (addr_count == 2) 1155 { 1156 if (++bnr > end_bnr) 1157 break; 1158 } 1159 else /* addr_count == 1 */ 1160 { 1161 arg = skipwhite(arg); 1162 if (*arg == NUL) 1163 break; 1164 if (!VIM_ISDIGIT(*arg)) 1165 { 1166 p = skiptowhite_esc(arg); 1167 bnr = buflist_findpat(arg, p, command == DOBUF_WIPE, 1168 FALSE, FALSE); 1169 if (bnr < 0) /* failed */ 1170 break; 1171 arg = p; 1172 } 1173 else 1174 bnr = getdigits(&arg); 1175 } 1176 } 1177 if (!got_int && do_current && do_buffer(command, DOBUF_FIRST, 1178 FORWARD, do_current, forceit) == OK) 1179 ++deleted; 1180 1181 if (deleted == 0) 1182 { 1183 if (command == DOBUF_UNLOAD) 1184 STRCPY(IObuff, _("E515: No buffers were unloaded")); 1185 else if (command == DOBUF_DEL) 1186 STRCPY(IObuff, _("E516: No buffers were deleted")); 1187 else 1188 STRCPY(IObuff, _("E517: No buffers were wiped out")); 1189 errormsg = (char *)IObuff; 1190 } 1191 else if (deleted >= p_report) 1192 { 1193 if (command == DOBUF_UNLOAD) 1194 smsg(NGETTEXT("%d buffer unloaded", 1195 "%d buffers unloaded", deleted), deleted); 1196 else if (command == DOBUF_DEL) 1197 smsg(NGETTEXT("%d buffer deleted", 1198 "%d buffers deleted", deleted), deleted); 1199 else 1200 smsg(NGETTEXT("%d buffer wiped out", 1201 "%d buffers wiped out", deleted), deleted); 1202 } 1203 } 1204 1205 1206 return errormsg; 1207 } 1208 1209 /* 1210 * Make the current buffer empty. 1211 * Used when it is wiped out and it's the last buffer. 1212 */ 1213 static int 1214 empty_curbuf( 1215 int close_others, 1216 int forceit, 1217 int action) 1218 { 1219 int retval; 1220 buf_T *buf = curbuf; 1221 bufref_T bufref; 1222 1223 if (action == DOBUF_UNLOAD) 1224 { 1225 emsg(_("E90: Cannot unload last buffer")); 1226 return FAIL; 1227 } 1228 1229 set_bufref(&bufref, buf); 1230 if (close_others) 1231 /* Close any other windows on this buffer, then make it empty. */ 1232 close_windows(buf, TRUE); 1233 1234 setpcmark(); 1235 retval = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 1236 forceit ? ECMD_FORCEIT : 0, curwin); 1237 1238 /* 1239 * do_ecmd() may create a new buffer, then we have to delete 1240 * the old one. But do_ecmd() may have done that already, check 1241 * if the buffer still exists. 1242 */ 1243 if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows == 0) 1244 close_buffer(NULL, buf, action, FALSE); 1245 if (!close_others) 1246 need_fileinfo = FALSE; 1247 return retval; 1248 } 1249 1250 /* 1251 * Implementation of the commands for the buffer list. 1252 * 1253 * action == DOBUF_GOTO go to specified buffer 1254 * action == DOBUF_SPLIT split window and go to specified buffer 1255 * action == DOBUF_UNLOAD unload specified buffer(s) 1256 * action == DOBUF_DEL delete specified buffer(s) from buffer list 1257 * action == DOBUF_WIPE delete specified buffer(s) really 1258 * 1259 * start == DOBUF_CURRENT go to "count" buffer from current buffer 1260 * start == DOBUF_FIRST go to "count" buffer from first buffer 1261 * start == DOBUF_LAST go to "count" buffer from last buffer 1262 * start == DOBUF_MOD go to "count" modified buffer from current buffer 1263 * 1264 * Return FAIL or OK. 1265 */ 1266 int 1267 do_buffer( 1268 int action, 1269 int start, 1270 int dir, /* FORWARD or BACKWARD */ 1271 int count, /* buffer number or number of buffers */ 1272 int forceit) /* TRUE for :...! */ 1273 { 1274 buf_T *buf; 1275 buf_T *bp; 1276 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1277 || action == DOBUF_WIPE); 1278 1279 switch (start) 1280 { 1281 case DOBUF_FIRST: buf = firstbuf; break; 1282 case DOBUF_LAST: buf = lastbuf; break; 1283 default: buf = curbuf; break; 1284 } 1285 if (start == DOBUF_MOD) /* find next modified buffer */ 1286 { 1287 while (count-- > 0) 1288 { 1289 do 1290 { 1291 buf = buf->b_next; 1292 if (buf == NULL) 1293 buf = firstbuf; 1294 } 1295 while (buf != curbuf && !bufIsChanged(buf)); 1296 } 1297 if (!bufIsChanged(buf)) 1298 { 1299 emsg(_("E84: No modified buffer found")); 1300 return FAIL; 1301 } 1302 } 1303 else if (start == DOBUF_FIRST && count) /* find specified buffer number */ 1304 { 1305 while (buf != NULL && buf->b_fnum != count) 1306 buf = buf->b_next; 1307 } 1308 else 1309 { 1310 bp = NULL; 1311 while (count > 0 || (!unload && !buf->b_p_bl && bp != buf)) 1312 { 1313 /* remember the buffer where we start, we come back there when all 1314 * buffers are unlisted. */ 1315 if (bp == NULL) 1316 bp = buf; 1317 if (dir == FORWARD) 1318 { 1319 buf = buf->b_next; 1320 if (buf == NULL) 1321 buf = firstbuf; 1322 } 1323 else 1324 { 1325 buf = buf->b_prev; 1326 if (buf == NULL) 1327 buf = lastbuf; 1328 } 1329 /* don't count unlisted buffers */ 1330 if (unload || buf->b_p_bl) 1331 { 1332 --count; 1333 bp = NULL; /* use this buffer as new starting point */ 1334 } 1335 if (bp == buf) 1336 { 1337 /* back where we started, didn't find anything. */ 1338 emsg(_("E85: There is no listed buffer")); 1339 return FAIL; 1340 } 1341 } 1342 } 1343 1344 if (buf == NULL) /* could not find it */ 1345 { 1346 if (start == DOBUF_FIRST) 1347 { 1348 /* don't warn when deleting */ 1349 if (!unload) 1350 semsg(_(e_nobufnr), count); 1351 } 1352 else if (dir == FORWARD) 1353 emsg(_("E87: Cannot go beyond last buffer")); 1354 else 1355 emsg(_("E88: Cannot go before first buffer")); 1356 return FAIL; 1357 } 1358 1359 #ifdef FEAT_GUI 1360 need_mouse_correct = TRUE; 1361 #endif 1362 1363 /* 1364 * delete buffer buf from memory and/or the list 1365 */ 1366 if (unload) 1367 { 1368 int forward; 1369 bufref_T bufref; 1370 1371 if (!can_unload_buffer(buf)) 1372 return FAIL; 1373 1374 set_bufref(&bufref, buf); 1375 1376 /* When unloading or deleting a buffer that's already unloaded and 1377 * unlisted: fail silently. */ 1378 if (action != DOBUF_WIPE && buf->b_ml.ml_mfp == NULL && !buf->b_p_bl) 1379 return FAIL; 1380 1381 if (!forceit && bufIsChanged(buf)) 1382 { 1383 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1384 if ((p_confirm || cmdmod.confirm) && p_write) 1385 { 1386 dialog_changed(buf, FALSE); 1387 if (!bufref_valid(&bufref)) 1388 /* Autocommand deleted buffer, oops! It's not changed 1389 * now. */ 1390 return FAIL; 1391 /* If it's still changed fail silently, the dialog already 1392 * mentioned why it fails. */ 1393 if (bufIsChanged(buf)) 1394 return FAIL; 1395 } 1396 else 1397 #endif 1398 { 1399 semsg(_("E89: No write since last change for buffer %d (add ! to override)"), 1400 buf->b_fnum); 1401 return FAIL; 1402 } 1403 } 1404 1405 /* When closing the current buffer stop Visual mode. */ 1406 if (buf == curbuf && VIsual_active) 1407 end_visual_mode(); 1408 1409 /* 1410 * If deleting the last (listed) buffer, make it empty. 1411 * The last (listed) buffer cannot be unloaded. 1412 */ 1413 FOR_ALL_BUFFERS(bp) 1414 if (bp->b_p_bl && bp != buf) 1415 break; 1416 if (bp == NULL && buf == curbuf) 1417 return empty_curbuf(TRUE, forceit, action); 1418 1419 /* 1420 * If the deleted buffer is the current one, close the current window 1421 * (unless it's the only window). Repeat this so long as we end up in 1422 * a window with this buffer. 1423 */ 1424 while (buf == curbuf 1425 && !(curwin->w_closing || curwin->w_buffer->b_locked > 0) 1426 && (!ONE_WINDOW || first_tabpage->tp_next != NULL)) 1427 { 1428 if (win_close(curwin, FALSE) == FAIL) 1429 break; 1430 } 1431 1432 /* 1433 * If the buffer to be deleted is not the current one, delete it here. 1434 */ 1435 if (buf != curbuf) 1436 { 1437 close_windows(buf, FALSE); 1438 if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows <= 0) 1439 close_buffer(NULL, buf, action, FALSE); 1440 return OK; 1441 } 1442 1443 /* 1444 * Deleting the current buffer: Need to find another buffer to go to. 1445 * There should be another, otherwise it would have been handled 1446 * above. However, autocommands may have deleted all buffers. 1447 * First use au_new_curbuf.br_buf, if it is valid. 1448 * Then prefer the buffer we most recently visited. 1449 * Else try to find one that is loaded, after the current buffer, 1450 * then before the current buffer. 1451 * Finally use any buffer. 1452 */ 1453 buf = NULL; /* selected buffer */ 1454 bp = NULL; /* used when no loaded buffer found */ 1455 if (au_new_curbuf.br_buf != NULL && bufref_valid(&au_new_curbuf)) 1456 buf = au_new_curbuf.br_buf; 1457 #ifdef FEAT_JUMPLIST 1458 else if (curwin->w_jumplistlen > 0) 1459 { 1460 int jumpidx; 1461 1462 jumpidx = curwin->w_jumplistidx - 1; 1463 if (jumpidx < 0) 1464 jumpidx = curwin->w_jumplistlen - 1; 1465 1466 forward = jumpidx; 1467 while (jumpidx != curwin->w_jumplistidx) 1468 { 1469 buf = buflist_findnr(curwin->w_jumplist[jumpidx].fmark.fnum); 1470 if (buf != NULL) 1471 { 1472 if (buf == curbuf || !buf->b_p_bl) 1473 buf = NULL; /* skip current and unlisted bufs */ 1474 else if (buf->b_ml.ml_mfp == NULL) 1475 { 1476 /* skip unloaded buf, but may keep it for later */ 1477 if (bp == NULL) 1478 bp = buf; 1479 buf = NULL; 1480 } 1481 } 1482 if (buf != NULL) /* found a valid buffer: stop searching */ 1483 break; 1484 /* advance to older entry in jump list */ 1485 if (!jumpidx && curwin->w_jumplistidx == curwin->w_jumplistlen) 1486 break; 1487 if (--jumpidx < 0) 1488 jumpidx = curwin->w_jumplistlen - 1; 1489 if (jumpidx == forward) /* List exhausted for sure */ 1490 break; 1491 } 1492 } 1493 #endif 1494 1495 if (buf == NULL) /* No previous buffer, Try 2'nd approach */ 1496 { 1497 forward = TRUE; 1498 buf = curbuf->b_next; 1499 for (;;) 1500 { 1501 if (buf == NULL) 1502 { 1503 if (!forward) /* tried both directions */ 1504 break; 1505 buf = curbuf->b_prev; 1506 forward = FALSE; 1507 continue; 1508 } 1509 /* in non-help buffer, try to skip help buffers, and vv */ 1510 if (buf->b_help == curbuf->b_help && buf->b_p_bl) 1511 { 1512 if (buf->b_ml.ml_mfp != NULL) /* found loaded buffer */ 1513 break; 1514 if (bp == NULL) /* remember unloaded buf for later */ 1515 bp = buf; 1516 } 1517 if (forward) 1518 buf = buf->b_next; 1519 else 1520 buf = buf->b_prev; 1521 } 1522 } 1523 if (buf == NULL) /* No loaded buffer, use unloaded one */ 1524 buf = bp; 1525 if (buf == NULL) /* No loaded buffer, find listed one */ 1526 { 1527 FOR_ALL_BUFFERS(buf) 1528 if (buf->b_p_bl && buf != curbuf) 1529 break; 1530 } 1531 if (buf == NULL) /* Still no buffer, just take one */ 1532 { 1533 if (curbuf->b_next != NULL) 1534 buf = curbuf->b_next; 1535 else 1536 buf = curbuf->b_prev; 1537 } 1538 } 1539 1540 if (buf == NULL) 1541 { 1542 /* Autocommands must have wiped out all other buffers. Only option 1543 * now is to make the current buffer empty. */ 1544 return empty_curbuf(FALSE, forceit, action); 1545 } 1546 1547 /* 1548 * make buf current buffer 1549 */ 1550 if (action == DOBUF_SPLIT) /* split window first */ 1551 { 1552 /* If 'switchbuf' contains "useopen": jump to first window containing 1553 * "buf" if one exists */ 1554 if ((swb_flags & SWB_USEOPEN) && buf_jump_open_win(buf)) 1555 return OK; 1556 /* If 'switchbuf' contains "usetab": jump to first window in any tab 1557 * page containing "buf" if one exists */ 1558 if ((swb_flags & SWB_USETAB) && buf_jump_open_tab(buf)) 1559 return OK; 1560 if (win_split(0, 0) == FAIL) 1561 return FAIL; 1562 } 1563 1564 /* go to current buffer - nothing to do */ 1565 if (buf == curbuf) 1566 return OK; 1567 1568 /* 1569 * Check if the current buffer may be abandoned. 1570 */ 1571 if (action == DOBUF_GOTO && !can_abandon(curbuf, forceit)) 1572 { 1573 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1574 if ((p_confirm || cmdmod.confirm) && p_write) 1575 { 1576 bufref_T bufref; 1577 1578 set_bufref(&bufref, buf); 1579 dialog_changed(curbuf, FALSE); 1580 if (!bufref_valid(&bufref)) 1581 /* Autocommand deleted buffer, oops! */ 1582 return FAIL; 1583 } 1584 if (bufIsChanged(curbuf)) 1585 #endif 1586 { 1587 no_write_message(); 1588 return FAIL; 1589 } 1590 } 1591 1592 /* Go to the other buffer. */ 1593 set_curbuf(buf, action); 1594 1595 if (action == DOBUF_SPLIT) 1596 RESET_BINDING(curwin); /* reset 'scrollbind' and 'cursorbind' */ 1597 1598 #if defined(FEAT_EVAL) 1599 if (aborting()) /* autocmds may abort script processing */ 1600 return FAIL; 1601 #endif 1602 1603 return OK; 1604 } 1605 1606 /* 1607 * Set current buffer to "buf". Executes autocommands and closes current 1608 * buffer. "action" tells how to close the current buffer: 1609 * DOBUF_GOTO free or hide it 1610 * DOBUF_SPLIT nothing 1611 * DOBUF_UNLOAD unload it 1612 * DOBUF_DEL delete it 1613 * DOBUF_WIPE wipe it out 1614 */ 1615 void 1616 set_curbuf(buf_T *buf, int action) 1617 { 1618 buf_T *prevbuf; 1619 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1620 || action == DOBUF_WIPE); 1621 #ifdef FEAT_SYN_HL 1622 long old_tw = curbuf->b_p_tw; 1623 #endif 1624 bufref_T newbufref; 1625 bufref_T prevbufref; 1626 1627 setpcmark(); 1628 if (!cmdmod.keepalt) 1629 curwin->w_alt_fnum = curbuf->b_fnum; /* remember alternate file */ 1630 buflist_altfpos(curwin); /* remember curpos */ 1631 1632 /* Don't restart Select mode after switching to another buffer. */ 1633 VIsual_reselect = FALSE; 1634 1635 /* close_windows() or apply_autocmds() may change curbuf and wipe out "buf" 1636 */ 1637 prevbuf = curbuf; 1638 set_bufref(&prevbufref, prevbuf); 1639 set_bufref(&newbufref, buf); 1640 1641 /* Autocommands may delete the curren buffer and/or the buffer we wan to go 1642 * to. In those cases don't close the buffer. */ 1643 if (!apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf) 1644 || (bufref_valid(&prevbufref) 1645 && bufref_valid(&newbufref) 1646 #ifdef FEAT_EVAL 1647 && !aborting() 1648 #endif 1649 )) 1650 { 1651 #ifdef FEAT_SYN_HL 1652 if (prevbuf == curwin->w_buffer) 1653 reset_synblock(curwin); 1654 #endif 1655 if (unload) 1656 close_windows(prevbuf, FALSE); 1657 #if defined(FEAT_EVAL) 1658 if (bufref_valid(&prevbufref) && !aborting()) 1659 #else 1660 if (bufref_valid(&prevbufref)) 1661 #endif 1662 { 1663 win_T *previouswin = curwin; 1664 if (prevbuf == curbuf) 1665 u_sync(FALSE); 1666 close_buffer(prevbuf == curwin->w_buffer ? curwin : NULL, prevbuf, 1667 unload ? action : (action == DOBUF_GOTO 1668 && !buf_hide(prevbuf) 1669 && !bufIsChanged(prevbuf)) ? DOBUF_UNLOAD : 0, FALSE); 1670 if (curwin != previouswin && win_valid(previouswin)) 1671 /* autocommands changed curwin, Grr! */ 1672 curwin = previouswin; 1673 } 1674 } 1675 /* An autocommand may have deleted "buf", already entered it (e.g., when 1676 * it did ":bunload") or aborted the script processing. 1677 * If curwin->w_buffer is null, enter_buffer() will make it valid again */ 1678 if ((buf_valid(buf) && buf != curbuf 1679 #ifdef FEAT_EVAL 1680 && !aborting() 1681 #endif 1682 ) || curwin->w_buffer == NULL) 1683 { 1684 enter_buffer(buf); 1685 #ifdef FEAT_SYN_HL 1686 if (old_tw != curbuf->b_p_tw) 1687 check_colorcolumn(curwin); 1688 #endif 1689 } 1690 } 1691 1692 /* 1693 * Enter a new current buffer. 1694 * Old curbuf must have been abandoned already! This also means "curbuf" may 1695 * be pointing to freed memory. 1696 */ 1697 void 1698 enter_buffer(buf_T *buf) 1699 { 1700 /* Copy buffer and window local option values. Not for a help buffer. */ 1701 buf_copy_options(buf, BCO_ENTER | BCO_NOHELP); 1702 if (!buf->b_help) 1703 get_winopts(buf); 1704 #ifdef FEAT_FOLDING 1705 else 1706 /* Remove all folds in the window. */ 1707 clearFolding(curwin); 1708 foldUpdateAll(curwin); /* update folds (later). */ 1709 #endif 1710 1711 /* Get the buffer in the current window. */ 1712 curwin->w_buffer = buf; 1713 curbuf = buf; 1714 ++curbuf->b_nwindows; 1715 1716 #ifdef FEAT_DIFF 1717 if (curwin->w_p_diff) 1718 diff_buf_add(curbuf); 1719 #endif 1720 1721 #ifdef FEAT_SYN_HL 1722 curwin->w_s = &(curbuf->b_s); 1723 #endif 1724 1725 /* Cursor on first line by default. */ 1726 curwin->w_cursor.lnum = 1; 1727 curwin->w_cursor.col = 0; 1728 curwin->w_cursor.coladd = 0; 1729 curwin->w_set_curswant = TRUE; 1730 curwin->w_topline_was_set = FALSE; 1731 1732 /* mark cursor position as being invalid */ 1733 curwin->w_valid = 0; 1734 1735 buflist_setfpos(curbuf, curwin, curbuf->b_last_cursor.lnum, 1736 curbuf->b_last_cursor.col, TRUE); 1737 1738 /* Make sure the buffer is loaded. */ 1739 if (curbuf->b_ml.ml_mfp == NULL) /* need to load the file */ 1740 { 1741 /* If there is no filetype, allow for detecting one. Esp. useful for 1742 * ":ball" used in a autocommand. If there already is a filetype we 1743 * might prefer to keep it. */ 1744 if (*curbuf->b_p_ft == NUL) 1745 did_filetype = FALSE; 1746 1747 open_buffer(FALSE, NULL, 0); 1748 } 1749 else 1750 { 1751 if (!msg_silent) 1752 need_fileinfo = TRUE; /* display file info after redraw */ 1753 (void)buf_check_timestamp(curbuf, FALSE); /* check if file changed */ 1754 curwin->w_topline = 1; 1755 #ifdef FEAT_DIFF 1756 curwin->w_topfill = 0; 1757 #endif 1758 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 1759 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 1760 } 1761 1762 /* If autocommands did not change the cursor position, restore cursor lnum 1763 * and possibly cursor col. */ 1764 if (curwin->w_cursor.lnum == 1 && inindent(0)) 1765 buflist_getfpos(); 1766 1767 check_arg_idx(curwin); /* check for valid arg_idx */ 1768 #ifdef FEAT_TITLE 1769 maketitle(); 1770 #endif 1771 /* when autocmds didn't change it */ 1772 if (curwin->w_topline == 1 && !curwin->w_topline_was_set) 1773 scroll_cursor_halfway(FALSE); /* redisplay at correct position */ 1774 1775 #ifdef FEAT_NETBEANS_INTG 1776 /* Send fileOpened event because we've changed buffers. */ 1777 netbeans_file_activated(curbuf); 1778 #endif 1779 1780 /* Change directories when the 'acd' option is set. */ 1781 DO_AUTOCHDIR; 1782 1783 #ifdef FEAT_KEYMAP 1784 if (curbuf->b_kmap_state & KEYMAP_INIT) 1785 (void)keymap_init(); 1786 #endif 1787 #ifdef FEAT_SPELL 1788 /* May need to set the spell language. Can only do this after the buffer 1789 * has been properly setup. */ 1790 if (!curbuf->b_help && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) 1791 (void)did_set_spelllang(curwin); 1792 #endif 1793 #ifdef FEAT_VIMINFO 1794 curbuf->b_last_used = vim_time(); 1795 #endif 1796 1797 redraw_later(NOT_VALID); 1798 } 1799 1800 #if defined(FEAT_AUTOCHDIR) || defined(PROTO) 1801 /* 1802 * Change to the directory of the current buffer. 1803 * Don't do this while still starting up. 1804 */ 1805 void 1806 do_autochdir(void) 1807 { 1808 if ((starting == 0 || test_autochdir) 1809 && curbuf->b_ffname != NULL 1810 && vim_chdirfile(curbuf->b_ffname, "auto") == OK) 1811 shorten_fnames(TRUE); 1812 } 1813 #endif 1814 1815 void 1816 no_write_message(void) 1817 { 1818 #ifdef FEAT_TERMINAL 1819 if (term_job_running(curbuf->b_term)) 1820 emsg(_("E948: Job still running (add ! to end the job)")); 1821 else 1822 #endif 1823 emsg(_("E37: No write since last change (add ! to override)")); 1824 } 1825 1826 void 1827 no_write_message_nobang(buf_T *buf UNUSED) 1828 { 1829 #ifdef FEAT_TERMINAL 1830 if (term_job_running(buf->b_term)) 1831 emsg(_("E948: Job still running")); 1832 else 1833 #endif 1834 emsg(_("E37: No write since last change")); 1835 } 1836 1837 /* 1838 * functions for dealing with the buffer list 1839 */ 1840 1841 static int top_file_num = 1; /* highest file number */ 1842 1843 /* 1844 * Return TRUE if the current buffer is empty, unnamed, unmodified and used in 1845 * only one window. That means it can be re-used. 1846 */ 1847 int 1848 curbuf_reusable(void) 1849 { 1850 return (curbuf != NULL 1851 && curbuf->b_ffname == NULL 1852 && curbuf->b_nwindows <= 1 1853 && (curbuf->b_ml.ml_mfp == NULL || BUFEMPTY()) 1854 #if defined(FEAT_QUICKFIX) 1855 && !bt_quickfix(curbuf) 1856 #endif 1857 && !curbufIsChanged()); 1858 } 1859 1860 /* 1861 * Add a file name to the buffer list. Return a pointer to the buffer. 1862 * If the same file name already exists return a pointer to that buffer. 1863 * If it does not exist, or if fname == NULL, a new entry is created. 1864 * If (flags & BLN_CURBUF) is TRUE, may use current buffer. 1865 * If (flags & BLN_LISTED) is TRUE, add new buffer to buffer list. 1866 * If (flags & BLN_DUMMY) is TRUE, don't count it as a real buffer. 1867 * If (flags & BLN_NEW) is TRUE, don't use an existing buffer. 1868 * If (flags & BLN_NOOPT) is TRUE, don't copy options from the current buffer 1869 * if the buffer already exists. 1870 * This is the ONLY way to create a new buffer. 1871 */ 1872 buf_T * 1873 buflist_new( 1874 char_u *ffname_arg, // full path of fname or relative 1875 char_u *sfname_arg, // short fname or NULL 1876 linenr_T lnum, // preferred cursor line 1877 int flags) // BLN_ defines 1878 { 1879 char_u *ffname = ffname_arg; 1880 char_u *sfname = sfname_arg; 1881 buf_T *buf; 1882 #ifdef UNIX 1883 stat_T st; 1884 #endif 1885 1886 if (top_file_num == 1) 1887 hash_init(&buf_hashtab); 1888 1889 fname_expand(curbuf, &ffname, &sfname); // will allocate ffname 1890 1891 /* 1892 * If file name already exists in the list, update the entry. 1893 */ 1894 #ifdef UNIX 1895 /* On Unix we can use inode numbers when the file exists. Works better 1896 * for hard links. */ 1897 if (sfname == NULL || mch_stat((char *)sfname, &st) < 0) 1898 st.st_dev = (dev_T)-1; 1899 #endif 1900 if (ffname != NULL && !(flags & (BLN_DUMMY | BLN_NEW)) && (buf = 1901 #ifdef UNIX 1902 buflist_findname_stat(ffname, &st) 1903 #else 1904 buflist_findname(ffname) 1905 #endif 1906 ) != NULL) 1907 { 1908 vim_free(ffname); 1909 if (lnum != 0) 1910 buflist_setfpos(buf, curwin, lnum, (colnr_T)0, FALSE); 1911 1912 if ((flags & BLN_NOOPT) == 0) 1913 /* copy the options now, if 'cpo' doesn't have 's' and not done 1914 * already */ 1915 buf_copy_options(buf, 0); 1916 1917 if ((flags & BLN_LISTED) && !buf->b_p_bl) 1918 { 1919 bufref_T bufref; 1920 1921 buf->b_p_bl = TRUE; 1922 set_bufref(&bufref, buf); 1923 if (!(flags & BLN_DUMMY)) 1924 { 1925 if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf) 1926 && !bufref_valid(&bufref)) 1927 return NULL; 1928 } 1929 } 1930 return buf; 1931 } 1932 1933 /* 1934 * If the current buffer has no name and no contents, use the current 1935 * buffer. Otherwise: Need to allocate a new buffer structure. 1936 * 1937 * This is the ONLY place where a new buffer structure is allocated! 1938 * (A spell file buffer is allocated in spell.c, but that's not a normal 1939 * buffer.) 1940 */ 1941 buf = NULL; 1942 if ((flags & BLN_CURBUF) && curbuf_reusable()) 1943 { 1944 buf = curbuf; 1945 /* It's like this buffer is deleted. Watch out for autocommands that 1946 * change curbuf! If that happens, allocate a new buffer anyway. */ 1947 if (curbuf->b_p_bl) 1948 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 1949 if (buf == curbuf) 1950 apply_autocmds(EVENT_BUFWIPEOUT, NULL, NULL, FALSE, curbuf); 1951 #ifdef FEAT_EVAL 1952 if (aborting()) /* autocmds may abort script processing */ 1953 return NULL; 1954 #endif 1955 if (buf == curbuf) 1956 { 1957 /* Make sure 'bufhidden' and 'buftype' are empty */ 1958 clear_string_option(&buf->b_p_bh); 1959 clear_string_option(&buf->b_p_bt); 1960 } 1961 } 1962 if (buf != curbuf || curbuf == NULL) 1963 { 1964 buf = (buf_T *)alloc_clear((unsigned)sizeof(buf_T)); 1965 if (buf == NULL) 1966 { 1967 vim_free(ffname); 1968 return NULL; 1969 } 1970 #ifdef FEAT_EVAL 1971 /* init b: variables */ 1972 buf->b_vars = dict_alloc(); 1973 if (buf->b_vars == NULL) 1974 { 1975 vim_free(ffname); 1976 vim_free(buf); 1977 return NULL; 1978 } 1979 init_var_dict(buf->b_vars, &buf->b_bufvar, VAR_SCOPE); 1980 #endif 1981 init_changedtick(buf); 1982 } 1983 1984 if (ffname != NULL) 1985 { 1986 buf->b_ffname = ffname; 1987 buf->b_sfname = vim_strsave(sfname); 1988 } 1989 1990 clear_wininfo(buf); 1991 buf->b_wininfo = (wininfo_T *)alloc_clear((unsigned)sizeof(wininfo_T)); 1992 1993 if ((ffname != NULL && (buf->b_ffname == NULL || buf->b_sfname == NULL)) 1994 || buf->b_wininfo == NULL) 1995 { 1996 if (buf->b_sfname != buf->b_ffname) 1997 VIM_CLEAR(buf->b_sfname); 1998 else 1999 buf->b_sfname = NULL; 2000 VIM_CLEAR(buf->b_ffname); 2001 if (buf != curbuf) 2002 free_buffer(buf); 2003 return NULL; 2004 } 2005 2006 if (buf == curbuf) 2007 { 2008 /* free all things allocated for this buffer */ 2009 buf_freeall(buf, 0); 2010 if (buf != curbuf) /* autocommands deleted the buffer! */ 2011 return NULL; 2012 #if defined(FEAT_EVAL) 2013 if (aborting()) /* autocmds may abort script processing */ 2014 return NULL; 2015 #endif 2016 free_buffer_stuff(buf, FALSE); /* delete local variables et al. */ 2017 2018 /* Init the options. */ 2019 buf->b_p_initialized = FALSE; 2020 buf_copy_options(buf, BCO_ENTER); 2021 2022 #ifdef FEAT_KEYMAP 2023 /* need to reload lmaps and set b:keymap_name */ 2024 curbuf->b_kmap_state |= KEYMAP_INIT; 2025 #endif 2026 } 2027 else 2028 { 2029 /* 2030 * put new buffer at the end of the buffer list 2031 */ 2032 buf->b_next = NULL; 2033 if (firstbuf == NULL) /* buffer list is empty */ 2034 { 2035 buf->b_prev = NULL; 2036 firstbuf = buf; 2037 } 2038 else /* append new buffer at end of list */ 2039 { 2040 lastbuf->b_next = buf; 2041 buf->b_prev = lastbuf; 2042 } 2043 lastbuf = buf; 2044 2045 buf->b_fnum = top_file_num++; 2046 if (top_file_num < 0) /* wrap around (may cause duplicates) */ 2047 { 2048 emsg(_("W14: Warning: List of file names overflow")); 2049 if (emsg_silent == 0) 2050 { 2051 out_flush(); 2052 ui_delay(3000L, TRUE); /* make sure it is noticed */ 2053 } 2054 top_file_num = 1; 2055 } 2056 buf_hashtab_add(buf); 2057 2058 /* 2059 * Always copy the options from the current buffer. 2060 */ 2061 buf_copy_options(buf, BCO_ALWAYS); 2062 } 2063 2064 buf->b_wininfo->wi_fpos.lnum = lnum; 2065 buf->b_wininfo->wi_win = curwin; 2066 2067 #ifdef FEAT_SYN_HL 2068 hash_init(&buf->b_s.b_keywtab); 2069 hash_init(&buf->b_s.b_keywtab_ic); 2070 #endif 2071 2072 buf->b_fname = buf->b_sfname; 2073 #ifdef UNIX 2074 if (st.st_dev == (dev_T)-1) 2075 buf->b_dev_valid = FALSE; 2076 else 2077 { 2078 buf->b_dev_valid = TRUE; 2079 buf->b_dev = st.st_dev; 2080 buf->b_ino = st.st_ino; 2081 } 2082 #endif 2083 buf->b_u_synced = TRUE; 2084 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 2085 if (flags & BLN_DUMMY) 2086 buf->b_flags |= BF_DUMMY; 2087 buf_clear_file(buf); 2088 clrallmarks(buf); /* clear marks */ 2089 fmarks_check_names(buf); /* check file marks for this file */ 2090 buf->b_p_bl = (flags & BLN_LISTED) ? TRUE : FALSE; /* init 'buflisted' */ 2091 if (!(flags & BLN_DUMMY)) 2092 { 2093 bufref_T bufref; 2094 2095 /* Tricky: these autocommands may change the buffer list. They could 2096 * also split the window with re-using the one empty buffer. This may 2097 * result in unexpectedly losing the empty buffer. */ 2098 set_bufref(&bufref, buf); 2099 if (apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf) 2100 && !bufref_valid(&bufref)) 2101 return NULL; 2102 if (flags & BLN_LISTED) 2103 { 2104 if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf) 2105 && !bufref_valid(&bufref)) 2106 return NULL; 2107 } 2108 #ifdef FEAT_EVAL 2109 if (aborting()) /* autocmds may abort script processing */ 2110 return NULL; 2111 #endif 2112 } 2113 2114 return buf; 2115 } 2116 2117 /* 2118 * Free the memory for the options of a buffer. 2119 * If "free_p_ff" is TRUE also free 'fileformat', 'buftype' and 2120 * 'fileencoding'. 2121 */ 2122 void 2123 free_buf_options( 2124 buf_T *buf, 2125 int free_p_ff) 2126 { 2127 if (free_p_ff) 2128 { 2129 clear_string_option(&buf->b_p_fenc); 2130 clear_string_option(&buf->b_p_ff); 2131 clear_string_option(&buf->b_p_bh); 2132 clear_string_option(&buf->b_p_bt); 2133 } 2134 #ifdef FEAT_FIND_ID 2135 clear_string_option(&buf->b_p_def); 2136 clear_string_option(&buf->b_p_inc); 2137 # ifdef FEAT_EVAL 2138 clear_string_option(&buf->b_p_inex); 2139 # endif 2140 #endif 2141 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL) 2142 clear_string_option(&buf->b_p_inde); 2143 clear_string_option(&buf->b_p_indk); 2144 #endif 2145 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL) 2146 clear_string_option(&buf->b_p_bexpr); 2147 #endif 2148 #if defined(FEAT_CRYPT) 2149 clear_string_option(&buf->b_p_cm); 2150 #endif 2151 clear_string_option(&buf->b_p_fp); 2152 #if defined(FEAT_EVAL) 2153 clear_string_option(&buf->b_p_fex); 2154 #endif 2155 #ifdef FEAT_CRYPT 2156 clear_string_option(&buf->b_p_key); 2157 #endif 2158 clear_string_option(&buf->b_p_kp); 2159 clear_string_option(&buf->b_p_mps); 2160 clear_string_option(&buf->b_p_fo); 2161 clear_string_option(&buf->b_p_flp); 2162 clear_string_option(&buf->b_p_isk); 2163 #ifdef FEAT_VARTABS 2164 clear_string_option(&buf->b_p_vsts); 2165 vim_free(buf->b_p_vsts_nopaste); 2166 buf->b_p_vsts_nopaste = NULL; 2167 vim_free(buf->b_p_vsts_array); 2168 buf->b_p_vsts_array = NULL; 2169 clear_string_option(&buf->b_p_vts); 2170 VIM_CLEAR(buf->b_p_vts_array); 2171 #endif 2172 #ifdef FEAT_KEYMAP 2173 clear_string_option(&buf->b_p_keymap); 2174 keymap_clear(&buf->b_kmap_ga); 2175 ga_clear(&buf->b_kmap_ga); 2176 #endif 2177 #ifdef FEAT_COMMENTS 2178 clear_string_option(&buf->b_p_com); 2179 #endif 2180 #ifdef FEAT_FOLDING 2181 clear_string_option(&buf->b_p_cms); 2182 #endif 2183 clear_string_option(&buf->b_p_nf); 2184 #ifdef FEAT_SYN_HL 2185 clear_string_option(&buf->b_p_syn); 2186 clear_string_option(&buf->b_s.b_syn_isk); 2187 #endif 2188 #ifdef FEAT_SPELL 2189 clear_string_option(&buf->b_s.b_p_spc); 2190 clear_string_option(&buf->b_s.b_p_spf); 2191 vim_regfree(buf->b_s.b_cap_prog); 2192 buf->b_s.b_cap_prog = NULL; 2193 clear_string_option(&buf->b_s.b_p_spl); 2194 #endif 2195 #ifdef FEAT_SEARCHPATH 2196 clear_string_option(&buf->b_p_sua); 2197 #endif 2198 clear_string_option(&buf->b_p_ft); 2199 #ifdef FEAT_CINDENT 2200 clear_string_option(&buf->b_p_cink); 2201 clear_string_option(&buf->b_p_cino); 2202 #endif 2203 #if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) 2204 clear_string_option(&buf->b_p_cinw); 2205 #endif 2206 #ifdef FEAT_INS_EXPAND 2207 clear_string_option(&buf->b_p_cpt); 2208 #endif 2209 #ifdef FEAT_COMPL_FUNC 2210 clear_string_option(&buf->b_p_cfu); 2211 clear_string_option(&buf->b_p_ofu); 2212 #endif 2213 #ifdef FEAT_QUICKFIX 2214 clear_string_option(&buf->b_p_gp); 2215 clear_string_option(&buf->b_p_mp); 2216 clear_string_option(&buf->b_p_efm); 2217 #endif 2218 clear_string_option(&buf->b_p_ep); 2219 clear_string_option(&buf->b_p_path); 2220 clear_string_option(&buf->b_p_tags); 2221 clear_string_option(&buf->b_p_tc); 2222 #ifdef FEAT_INS_EXPAND 2223 clear_string_option(&buf->b_p_dict); 2224 clear_string_option(&buf->b_p_tsr); 2225 #endif 2226 #ifdef FEAT_TEXTOBJ 2227 clear_string_option(&buf->b_p_qe); 2228 #endif 2229 buf->b_p_ar = -1; 2230 buf->b_p_ul = NO_LOCAL_UNDOLEVEL; 2231 #ifdef FEAT_LISP 2232 clear_string_option(&buf->b_p_lw); 2233 #endif 2234 clear_string_option(&buf->b_p_bkc); 2235 clear_string_option(&buf->b_p_menc); 2236 } 2237 2238 /* 2239 * Get alternate file "n". 2240 * Set linenr to "lnum" or altfpos.lnum if "lnum" == 0. 2241 * Also set cursor column to altfpos.col if 'startofline' is not set. 2242 * if (options & GETF_SETMARK) call setpcmark() 2243 * if (options & GETF_ALT) we are jumping to an alternate file. 2244 * if (options & GETF_SWITCH) respect 'switchbuf' settings when jumping 2245 * 2246 * Return FAIL for failure, OK for success. 2247 */ 2248 int 2249 buflist_getfile( 2250 int n, 2251 linenr_T lnum, 2252 int options, 2253 int forceit) 2254 { 2255 buf_T *buf; 2256 win_T *wp = NULL; 2257 pos_T *fpos; 2258 colnr_T col; 2259 2260 buf = buflist_findnr(n); 2261 if (buf == NULL) 2262 { 2263 if ((options & GETF_ALT) && n == 0) 2264 emsg(_(e_noalt)); 2265 else 2266 semsg(_("E92: Buffer %d not found"), n); 2267 return FAIL; 2268 } 2269 2270 /* if alternate file is the current buffer, nothing to do */ 2271 if (buf == curbuf) 2272 return OK; 2273 2274 if (text_locked()) 2275 { 2276 text_locked_msg(); 2277 return FAIL; 2278 } 2279 if (curbuf_locked()) 2280 return FAIL; 2281 2282 /* altfpos may be changed by getfile(), get it now */ 2283 if (lnum == 0) 2284 { 2285 fpos = buflist_findfpos(buf); 2286 lnum = fpos->lnum; 2287 col = fpos->col; 2288 } 2289 else 2290 col = 0; 2291 2292 if (options & GETF_SWITCH) 2293 { 2294 /* If 'switchbuf' contains "useopen": jump to first window containing 2295 * "buf" if one exists */ 2296 if (swb_flags & SWB_USEOPEN) 2297 wp = buf_jump_open_win(buf); 2298 2299 /* If 'switchbuf' contains "usetab": jump to first window in any tab 2300 * page containing "buf" if one exists */ 2301 if (wp == NULL && (swb_flags & SWB_USETAB)) 2302 wp = buf_jump_open_tab(buf); 2303 2304 /* If 'switchbuf' contains "split", "vsplit" or "newtab" and the 2305 * current buffer isn't empty: open new tab or window */ 2306 if (wp == NULL && (swb_flags & (SWB_VSPLIT | SWB_SPLIT | SWB_NEWTAB)) 2307 && !BUFEMPTY()) 2308 { 2309 if (swb_flags & SWB_NEWTAB) 2310 tabpage_new(); 2311 else if (win_split(0, (swb_flags & SWB_VSPLIT) ? WSP_VERT : 0) 2312 == FAIL) 2313 return FAIL; 2314 RESET_BINDING(curwin); 2315 } 2316 } 2317 2318 ++RedrawingDisabled; 2319 if (GETFILE_SUCCESS(getfile(buf->b_fnum, NULL, NULL, 2320 (options & GETF_SETMARK), lnum, forceit))) 2321 { 2322 --RedrawingDisabled; 2323 2324 /* cursor is at to BOL and w_cursor.lnum is checked due to getfile() */ 2325 if (!p_sol && col != 0) 2326 { 2327 curwin->w_cursor.col = col; 2328 check_cursor_col(); 2329 curwin->w_cursor.coladd = 0; 2330 curwin->w_set_curswant = TRUE; 2331 } 2332 return OK; 2333 } 2334 --RedrawingDisabled; 2335 return FAIL; 2336 } 2337 2338 /* 2339 * go to the last know line number for the current buffer 2340 */ 2341 void 2342 buflist_getfpos(void) 2343 { 2344 pos_T *fpos; 2345 2346 fpos = buflist_findfpos(curbuf); 2347 2348 curwin->w_cursor.lnum = fpos->lnum; 2349 check_cursor_lnum(); 2350 2351 if (p_sol) 2352 curwin->w_cursor.col = 0; 2353 else 2354 { 2355 curwin->w_cursor.col = fpos->col; 2356 check_cursor_col(); 2357 curwin->w_cursor.coladd = 0; 2358 curwin->w_set_curswant = TRUE; 2359 } 2360 } 2361 2362 #if defined(FEAT_QUICKFIX) || defined(FEAT_EVAL) || defined(PROTO) 2363 /* 2364 * Find file in buffer list by name (it has to be for the current window). 2365 * Returns NULL if not found. 2366 */ 2367 buf_T * 2368 buflist_findname_exp(char_u *fname) 2369 { 2370 char_u *ffname; 2371 buf_T *buf = NULL; 2372 2373 /* First make the name into a full path name */ 2374 ffname = FullName_save(fname, 2375 #ifdef UNIX 2376 TRUE /* force expansion, get rid of symbolic links */ 2377 #else 2378 FALSE 2379 #endif 2380 ); 2381 if (ffname != NULL) 2382 { 2383 buf = buflist_findname(ffname); 2384 vim_free(ffname); 2385 } 2386 return buf; 2387 } 2388 #endif 2389 2390 /* 2391 * Find file in buffer list by name (it has to be for the current window). 2392 * "ffname" must have a full path. 2393 * Skips dummy buffers. 2394 * Returns NULL if not found. 2395 */ 2396 buf_T * 2397 buflist_findname(char_u *ffname) 2398 { 2399 #ifdef UNIX 2400 stat_T st; 2401 2402 if (mch_stat((char *)ffname, &st) < 0) 2403 st.st_dev = (dev_T)-1; 2404 return buflist_findname_stat(ffname, &st); 2405 } 2406 2407 /* 2408 * Same as buflist_findname(), but pass the stat structure to avoid getting it 2409 * twice for the same file. 2410 * Returns NULL if not found. 2411 */ 2412 static buf_T * 2413 buflist_findname_stat( 2414 char_u *ffname, 2415 stat_T *stp) 2416 { 2417 #endif 2418 buf_T *buf; 2419 2420 /* Start at the last buffer, expect to find a match sooner. */ 2421 for (buf = lastbuf; buf != NULL; buf = buf->b_prev) 2422 if ((buf->b_flags & BF_DUMMY) == 0 && !otherfile_buf(buf, ffname 2423 #ifdef UNIX 2424 , stp 2425 #endif 2426 )) 2427 return buf; 2428 return NULL; 2429 } 2430 2431 /* 2432 * Find file in buffer list by a regexp pattern. 2433 * Return fnum of the found buffer. 2434 * Return < 0 for error. 2435 */ 2436 int 2437 buflist_findpat( 2438 char_u *pattern, 2439 char_u *pattern_end, /* pointer to first char after pattern */ 2440 int unlisted, /* find unlisted buffers */ 2441 int diffmode UNUSED, /* find diff-mode buffers only */ 2442 int curtab_only) /* find buffers in current tab only */ 2443 { 2444 buf_T *buf; 2445 int match = -1; 2446 int find_listed; 2447 char_u *pat; 2448 char_u *patend; 2449 int attempt; 2450 char_u *p; 2451 int toggledollar; 2452 2453 if (pattern_end == pattern + 1 && (*pattern == '%' || *pattern == '#')) 2454 { 2455 if (*pattern == '%') 2456 match = curbuf->b_fnum; 2457 else 2458 match = curwin->w_alt_fnum; 2459 #ifdef FEAT_DIFF 2460 if (diffmode && !diff_mode_buf(buflist_findnr(match))) 2461 match = -1; 2462 #endif 2463 } 2464 2465 /* 2466 * Try four ways of matching a listed buffer: 2467 * attempt == 0: without '^' or '$' (at any position) 2468 * attempt == 1: with '^' at start (only at position 0) 2469 * attempt == 2: with '$' at end (only match at end) 2470 * attempt == 3: with '^' at start and '$' at end (only full match) 2471 * Repeat this for finding an unlisted buffer if there was no matching 2472 * listed buffer. 2473 */ 2474 else 2475 { 2476 pat = file_pat_to_reg_pat(pattern, pattern_end, NULL, FALSE); 2477 if (pat == NULL) 2478 return -1; 2479 patend = pat + STRLEN(pat) - 1; 2480 toggledollar = (patend > pat && *patend == '$'); 2481 2482 /* First try finding a listed buffer. If not found and "unlisted" 2483 * is TRUE, try finding an unlisted buffer. */ 2484 find_listed = TRUE; 2485 for (;;) 2486 { 2487 for (attempt = 0; attempt <= 3; ++attempt) 2488 { 2489 regmatch_T regmatch; 2490 2491 /* may add '^' and '$' */ 2492 if (toggledollar) 2493 *patend = (attempt < 2) ? NUL : '$'; /* add/remove '$' */ 2494 p = pat; 2495 if (*p == '^' && !(attempt & 1)) /* add/remove '^' */ 2496 ++p; 2497 regmatch.regprog = vim_regcomp(p, p_magic ? RE_MAGIC : 0); 2498 if (regmatch.regprog == NULL) 2499 { 2500 vim_free(pat); 2501 return -1; 2502 } 2503 2504 for (buf = lastbuf; buf != NULL; buf = buf->b_prev) 2505 if (buf->b_p_bl == find_listed 2506 #ifdef FEAT_DIFF 2507 && (!diffmode || diff_mode_buf(buf)) 2508 #endif 2509 && buflist_match(®match, buf, FALSE) != NULL) 2510 { 2511 if (curtab_only) 2512 { 2513 /* Ignore the match if the buffer is not open in 2514 * the current tab. */ 2515 win_T *wp; 2516 2517 FOR_ALL_WINDOWS(wp) 2518 if (wp->w_buffer == buf) 2519 break; 2520 if (wp == NULL) 2521 continue; 2522 } 2523 if (match >= 0) /* already found a match */ 2524 { 2525 match = -2; 2526 break; 2527 } 2528 match = buf->b_fnum; /* remember first match */ 2529 } 2530 2531 vim_regfree(regmatch.regprog); 2532 if (match >= 0) /* found one match */ 2533 break; 2534 } 2535 2536 /* Only search for unlisted buffers if there was no match with 2537 * a listed buffer. */ 2538 if (!unlisted || !find_listed || match != -1) 2539 break; 2540 find_listed = FALSE; 2541 } 2542 2543 vim_free(pat); 2544 } 2545 2546 if (match == -2) 2547 semsg(_("E93: More than one match for %s"), pattern); 2548 else if (match < 0) 2549 semsg(_("E94: No matching buffer for %s"), pattern); 2550 return match; 2551 } 2552 2553 #if defined(FEAT_CMDL_COMPL) || defined(PROTO) 2554 2555 /* 2556 * Find all buffer names that match. 2557 * For command line expansion of ":buf" and ":sbuf". 2558 * Return OK if matches found, FAIL otherwise. 2559 */ 2560 int 2561 ExpandBufnames( 2562 char_u *pat, 2563 int *num_file, 2564 char_u ***file, 2565 int options) 2566 { 2567 int count = 0; 2568 buf_T *buf; 2569 int round; 2570 char_u *p; 2571 int attempt; 2572 char_u *patc; 2573 2574 *num_file = 0; /* return values in case of FAIL */ 2575 *file = NULL; 2576 2577 /* Make a copy of "pat" and change "^" to "\(^\|[\/]\)". */ 2578 if (*pat == '^') 2579 { 2580 patc = alloc((unsigned)STRLEN(pat) + 11); 2581 if (patc == NULL) 2582 return FAIL; 2583 STRCPY(patc, "\\(^\\|[\\/]\\)"); 2584 STRCPY(patc + 11, pat + 1); 2585 } 2586 else 2587 patc = pat; 2588 2589 /* 2590 * attempt == 0: try match with '\<', match at start of word 2591 * attempt == 1: try match without '\<', match anywhere 2592 */ 2593 for (attempt = 0; attempt <= 1; ++attempt) 2594 { 2595 regmatch_T regmatch; 2596 2597 if (attempt > 0 && patc == pat) 2598 break; /* there was no anchor, no need to try again */ 2599 regmatch.regprog = vim_regcomp(patc + attempt * 11, RE_MAGIC); 2600 if (regmatch.regprog == NULL) 2601 { 2602 if (patc != pat) 2603 vim_free(patc); 2604 return FAIL; 2605 } 2606 2607 /* 2608 * round == 1: Count the matches. 2609 * round == 2: Build the array to keep the matches. 2610 */ 2611 for (round = 1; round <= 2; ++round) 2612 { 2613 count = 0; 2614 FOR_ALL_BUFFERS(buf) 2615 { 2616 if (!buf->b_p_bl) /* skip unlisted buffers */ 2617 continue; 2618 p = buflist_match(®match, buf, p_wic); 2619 if (p != NULL) 2620 { 2621 if (round == 1) 2622 ++count; 2623 else 2624 { 2625 if (options & WILD_HOME_REPLACE) 2626 p = home_replace_save(buf, p); 2627 else 2628 p = vim_strsave(p); 2629 (*file)[count++] = p; 2630 } 2631 } 2632 } 2633 if (count == 0) /* no match found, break here */ 2634 break; 2635 if (round == 1) 2636 { 2637 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *))); 2638 if (*file == NULL) 2639 { 2640 vim_regfree(regmatch.regprog); 2641 if (patc != pat) 2642 vim_free(patc); 2643 return FAIL; 2644 } 2645 } 2646 } 2647 vim_regfree(regmatch.regprog); 2648 if (count) /* match(es) found, break here */ 2649 break; 2650 } 2651 2652 if (patc != pat) 2653 vim_free(patc); 2654 2655 *num_file = count; 2656 return (count == 0 ? FAIL : OK); 2657 } 2658 2659 #endif /* FEAT_CMDL_COMPL */ 2660 2661 /* 2662 * Check for a match on the file name for buffer "buf" with regprog "prog". 2663 */ 2664 static char_u * 2665 buflist_match( 2666 regmatch_T *rmp, 2667 buf_T *buf, 2668 int ignore_case) /* when TRUE ignore case, when FALSE use 'fic' */ 2669 { 2670 char_u *match; 2671 2672 /* First try the short file name, then the long file name. */ 2673 match = fname_match(rmp, buf->b_sfname, ignore_case); 2674 if (match == NULL) 2675 match = fname_match(rmp, buf->b_ffname, ignore_case); 2676 2677 return match; 2678 } 2679 2680 /* 2681 * Try matching the regexp in "prog" with file name "name". 2682 * Return "name" when there is a match, NULL when not. 2683 */ 2684 static char_u * 2685 fname_match( 2686 regmatch_T *rmp, 2687 char_u *name, 2688 int ignore_case) /* when TRUE ignore case, when FALSE use 'fic' */ 2689 { 2690 char_u *match = NULL; 2691 char_u *p; 2692 2693 if (name != NULL) 2694 { 2695 /* Ignore case when 'fileignorecase' or the argument is set. */ 2696 rmp->rm_ic = p_fic || ignore_case; 2697 if (vim_regexec(rmp, name, (colnr_T)0)) 2698 match = name; 2699 else 2700 { 2701 /* Replace $(HOME) with '~' and try matching again. */ 2702 p = home_replace_save(NULL, name); 2703 if (p != NULL && vim_regexec(rmp, p, (colnr_T)0)) 2704 match = name; 2705 vim_free(p); 2706 } 2707 } 2708 2709 return match; 2710 } 2711 2712 /* 2713 * Find a file in the buffer list by buffer number. 2714 */ 2715 buf_T * 2716 buflist_findnr(int nr) 2717 { 2718 char_u key[VIM_SIZEOF_INT * 2 + 1]; 2719 hashitem_T *hi; 2720 2721 if (nr == 0) 2722 nr = curwin->w_alt_fnum; 2723 sprintf((char *)key, "%x", nr); 2724 hi = hash_find(&buf_hashtab, key); 2725 2726 if (!HASHITEM_EMPTY(hi)) 2727 return (buf_T *)(hi->hi_key 2728 - ((unsigned)(curbuf->b_key - (char_u *)curbuf))); 2729 return NULL; 2730 } 2731 2732 /* 2733 * Get name of file 'n' in the buffer list. 2734 * When the file has no name an empty string is returned. 2735 * home_replace() is used to shorten the file name (used for marks). 2736 * Returns a pointer to allocated memory, of NULL when failed. 2737 */ 2738 char_u * 2739 buflist_nr2name( 2740 int n, 2741 int fullname, 2742 int helptail) /* for help buffers return tail only */ 2743 { 2744 buf_T *buf; 2745 2746 buf = buflist_findnr(n); 2747 if (buf == NULL) 2748 return NULL; 2749 return home_replace_save(helptail ? buf : NULL, 2750 fullname ? buf->b_ffname : buf->b_fname); 2751 } 2752 2753 /* 2754 * Set the "lnum" and "col" for the buffer "buf" and the current window. 2755 * When "copy_options" is TRUE save the local window option values. 2756 * When "lnum" is 0 only do the options. 2757 */ 2758 static void 2759 buflist_setfpos( 2760 buf_T *buf, 2761 win_T *win, 2762 linenr_T lnum, 2763 colnr_T col, 2764 int copy_options) 2765 { 2766 wininfo_T *wip; 2767 2768 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2769 if (wip->wi_win == win) 2770 break; 2771 if (wip == NULL) 2772 { 2773 /* allocate a new entry */ 2774 wip = (wininfo_T *)alloc_clear((unsigned)sizeof(wininfo_T)); 2775 if (wip == NULL) 2776 return; 2777 wip->wi_win = win; 2778 if (lnum == 0) /* set lnum even when it's 0 */ 2779 lnum = 1; 2780 } 2781 else 2782 { 2783 /* remove the entry from the list */ 2784 if (wip->wi_prev) 2785 wip->wi_prev->wi_next = wip->wi_next; 2786 else 2787 buf->b_wininfo = wip->wi_next; 2788 if (wip->wi_next) 2789 wip->wi_next->wi_prev = wip->wi_prev; 2790 if (copy_options && wip->wi_optset) 2791 { 2792 clear_winopt(&wip->wi_opt); 2793 #ifdef FEAT_FOLDING 2794 deleteFoldRecurse(&wip->wi_folds); 2795 #endif 2796 } 2797 } 2798 if (lnum != 0) 2799 { 2800 wip->wi_fpos.lnum = lnum; 2801 wip->wi_fpos.col = col; 2802 } 2803 if (copy_options) 2804 { 2805 /* Save the window-specific option values. */ 2806 copy_winopt(&win->w_onebuf_opt, &wip->wi_opt); 2807 #ifdef FEAT_FOLDING 2808 wip->wi_fold_manual = win->w_fold_manual; 2809 cloneFoldGrowArray(&win->w_folds, &wip->wi_folds); 2810 #endif 2811 wip->wi_optset = TRUE; 2812 } 2813 2814 /* insert the entry in front of the list */ 2815 wip->wi_next = buf->b_wininfo; 2816 buf->b_wininfo = wip; 2817 wip->wi_prev = NULL; 2818 if (wip->wi_next) 2819 wip->wi_next->wi_prev = wip; 2820 2821 return; 2822 } 2823 2824 #ifdef FEAT_DIFF 2825 /* 2826 * Return TRUE when "wip" has 'diff' set and the diff is only for another tab 2827 * page. That's because a diff is local to a tab page. 2828 */ 2829 static int 2830 wininfo_other_tab_diff(wininfo_T *wip) 2831 { 2832 win_T *wp; 2833 2834 if (wip->wi_opt.wo_diff) 2835 { 2836 FOR_ALL_WINDOWS(wp) 2837 /* return FALSE when it's a window in the current tab page, thus 2838 * the buffer was in diff mode here */ 2839 if (wip->wi_win == wp) 2840 return FALSE; 2841 return TRUE; 2842 } 2843 return FALSE; 2844 } 2845 #endif 2846 2847 /* 2848 * Find info for the current window in buffer "buf". 2849 * If not found, return the info for the most recently used window. 2850 * When "skip_diff_buffer" is TRUE avoid windows with 'diff' set that is in 2851 * another tab page. 2852 * Returns NULL when there isn't any info. 2853 */ 2854 static wininfo_T * 2855 find_wininfo( 2856 buf_T *buf, 2857 int skip_diff_buffer UNUSED) 2858 { 2859 wininfo_T *wip; 2860 2861 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2862 if (wip->wi_win == curwin 2863 #ifdef FEAT_DIFF 2864 && (!skip_diff_buffer || !wininfo_other_tab_diff(wip)) 2865 #endif 2866 ) 2867 break; 2868 2869 /* If no wininfo for curwin, use the first in the list (that doesn't have 2870 * 'diff' set and is in another tab page). */ 2871 if (wip == NULL) 2872 { 2873 #ifdef FEAT_DIFF 2874 if (skip_diff_buffer) 2875 { 2876 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2877 if (!wininfo_other_tab_diff(wip)) 2878 break; 2879 } 2880 else 2881 #endif 2882 wip = buf->b_wininfo; 2883 } 2884 return wip; 2885 } 2886 2887 /* 2888 * Reset the local window options to the values last used in this window. 2889 * If the buffer wasn't used in this window before, use the values from 2890 * the most recently used window. If the values were never set, use the 2891 * global values for the window. 2892 */ 2893 void 2894 get_winopts(buf_T *buf) 2895 { 2896 wininfo_T *wip; 2897 2898 clear_winopt(&curwin->w_onebuf_opt); 2899 #ifdef FEAT_FOLDING 2900 clearFolding(curwin); 2901 #endif 2902 2903 wip = find_wininfo(buf, TRUE); 2904 if (wip != NULL && wip->wi_win != NULL 2905 && wip->wi_win != curwin && wip->wi_win->w_buffer == buf) 2906 { 2907 /* The buffer is currently displayed in the window: use the actual 2908 * option values instead of the saved (possibly outdated) values. */ 2909 win_T *wp = wip->wi_win; 2910 2911 copy_winopt(&wp->w_onebuf_opt, &curwin->w_onebuf_opt); 2912 #ifdef FEAT_FOLDING 2913 curwin->w_fold_manual = wp->w_fold_manual; 2914 curwin->w_foldinvalid = TRUE; 2915 cloneFoldGrowArray(&wp->w_folds, &curwin->w_folds); 2916 #endif 2917 } 2918 else if (wip != NULL && wip->wi_optset) 2919 { 2920 /* the buffer was displayed in the current window earlier */ 2921 copy_winopt(&wip->wi_opt, &curwin->w_onebuf_opt); 2922 #ifdef FEAT_FOLDING 2923 curwin->w_fold_manual = wip->wi_fold_manual; 2924 curwin->w_foldinvalid = TRUE; 2925 cloneFoldGrowArray(&wip->wi_folds, &curwin->w_folds); 2926 #endif 2927 } 2928 else 2929 copy_winopt(&curwin->w_allbuf_opt, &curwin->w_onebuf_opt); 2930 2931 #ifdef FEAT_FOLDING 2932 /* Set 'foldlevel' to 'foldlevelstart' if it's not negative. */ 2933 if (p_fdls >= 0) 2934 curwin->w_p_fdl = p_fdls; 2935 #endif 2936 #ifdef FEAT_SYN_HL 2937 check_colorcolumn(curwin); 2938 #endif 2939 } 2940 2941 /* 2942 * Find the position (lnum and col) for the buffer 'buf' for the current 2943 * window. 2944 * Returns a pointer to no_position if no position is found. 2945 */ 2946 pos_T * 2947 buflist_findfpos(buf_T *buf) 2948 { 2949 wininfo_T *wip; 2950 static pos_T no_position = {1, 0, 0}; 2951 2952 wip = find_wininfo(buf, FALSE); 2953 if (wip != NULL) 2954 return &(wip->wi_fpos); 2955 else 2956 return &no_position; 2957 } 2958 2959 /* 2960 * Find the lnum for the buffer 'buf' for the current window. 2961 */ 2962 linenr_T 2963 buflist_findlnum(buf_T *buf) 2964 { 2965 return buflist_findfpos(buf)->lnum; 2966 } 2967 2968 /* 2969 * List all known file names (for :files and :buffers command). 2970 */ 2971 void 2972 buflist_list(exarg_T *eap) 2973 { 2974 buf_T *buf; 2975 int len; 2976 int i; 2977 int ro_char; 2978 int changed_char; 2979 #ifdef FEAT_TERMINAL 2980 int job_running; 2981 int job_none_open; 2982 #endif 2983 2984 for (buf = firstbuf; buf != NULL && !got_int; buf = buf->b_next) 2985 { 2986 #ifdef FEAT_TERMINAL 2987 job_running = term_job_running(buf->b_term); 2988 job_none_open = job_running && term_none_open(buf->b_term); 2989 #endif 2990 /* skip unlisted buffers, unless ! was used */ 2991 if ((!buf->b_p_bl && !eap->forceit && !vim_strchr(eap->arg, 'u')) 2992 || (vim_strchr(eap->arg, 'u') && buf->b_p_bl) 2993 || (vim_strchr(eap->arg, '+') 2994 && ((buf->b_flags & BF_READERR) || !bufIsChanged(buf))) 2995 || (vim_strchr(eap->arg, 'a') 2996 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows == 0)) 2997 || (vim_strchr(eap->arg, 'h') 2998 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows != 0)) 2999 #ifdef FEAT_TERMINAL 3000 || (vim_strchr(eap->arg, 'R') 3001 && (!job_running || (job_running && job_none_open))) 3002 || (vim_strchr(eap->arg, '?') 3003 && (!job_running || (job_running && !job_none_open))) 3004 || (vim_strchr(eap->arg, 'F') 3005 && (job_running || buf->b_term == NULL)) 3006 #endif 3007 || (vim_strchr(eap->arg, '-') && buf->b_p_ma) 3008 || (vim_strchr(eap->arg, '=') && !buf->b_p_ro) 3009 || (vim_strchr(eap->arg, 'x') && !(buf->b_flags & BF_READERR)) 3010 || (vim_strchr(eap->arg, '%') && buf != curbuf) 3011 || (vim_strchr(eap->arg, '#') 3012 && (buf == curbuf || curwin->w_alt_fnum != buf->b_fnum))) 3013 continue; 3014 if (buf_spname(buf) != NULL) 3015 vim_strncpy(NameBuff, buf_spname(buf), MAXPATHL - 1); 3016 else 3017 home_replace(buf, buf->b_fname, NameBuff, MAXPATHL, TRUE); 3018 if (message_filtered(NameBuff)) 3019 continue; 3020 3021 changed_char = (buf->b_flags & BF_READERR) ? 'x' 3022 : (bufIsChanged(buf) ? '+' : ' '); 3023 #ifdef FEAT_TERMINAL 3024 if (term_job_running(buf->b_term)) 3025 { 3026 if (term_none_open(buf->b_term)) 3027 ro_char = '?'; 3028 else 3029 ro_char = 'R'; 3030 changed_char = ' '; /* bufIsChanged() returns TRUE to avoid 3031 * closing, but it's not actually changed. */ 3032 } 3033 else if (buf->b_term != NULL) 3034 ro_char = 'F'; 3035 else 3036 #endif 3037 ro_char = !buf->b_p_ma ? '-' : (buf->b_p_ro ? '=' : ' '); 3038 3039 msg_putchar('\n'); 3040 len = vim_snprintf((char *)IObuff, IOSIZE - 20, "%3d%c%c%c%c%c \"%s\"", 3041 buf->b_fnum, 3042 buf->b_p_bl ? ' ' : 'u', 3043 buf == curbuf ? '%' : 3044 (curwin->w_alt_fnum == buf->b_fnum ? '#' : ' '), 3045 buf->b_ml.ml_mfp == NULL ? ' ' : 3046 (buf->b_nwindows == 0 ? 'h' : 'a'), 3047 ro_char, 3048 changed_char, 3049 NameBuff); 3050 if (len > IOSIZE - 20) 3051 len = IOSIZE - 20; 3052 3053 /* put "line 999" in column 40 or after the file name */ 3054 i = 40 - vim_strsize(IObuff); 3055 do 3056 IObuff[len++] = ' '; 3057 while (--i > 0 && len < IOSIZE - 18); 3058 vim_snprintf((char *)IObuff + len, (size_t)(IOSIZE - len), 3059 _("line %ld"), buf == curbuf ? curwin->w_cursor.lnum 3060 : (long)buflist_findlnum(buf)); 3061 msg_outtrans(IObuff); 3062 out_flush(); /* output one line at a time */ 3063 ui_breakcheck(); 3064 } 3065 } 3066 3067 /* 3068 * Get file name and line number for file 'fnum'. 3069 * Used by DoOneCmd() for translating '%' and '#'. 3070 * Used by insert_reg() and cmdline_paste() for '#' register. 3071 * Return FAIL if not found, OK for success. 3072 */ 3073 int 3074 buflist_name_nr( 3075 int fnum, 3076 char_u **fname, 3077 linenr_T *lnum) 3078 { 3079 buf_T *buf; 3080 3081 buf = buflist_findnr(fnum); 3082 if (buf == NULL || buf->b_fname == NULL) 3083 return FAIL; 3084 3085 *fname = buf->b_fname; 3086 *lnum = buflist_findlnum(buf); 3087 3088 return OK; 3089 } 3090 3091 /* 3092 * Set the file name for "buf"' to "ffname_arg", short file name to 3093 * "sfname_arg". 3094 * The file name with the full path is also remembered, for when :cd is used. 3095 * Returns FAIL for failure (file name already in use by other buffer) 3096 * OK otherwise. 3097 */ 3098 int 3099 setfname( 3100 buf_T *buf, 3101 char_u *ffname_arg, 3102 char_u *sfname_arg, 3103 int message) /* give message when buffer already exists */ 3104 { 3105 char_u *ffname = ffname_arg; 3106 char_u *sfname = sfname_arg; 3107 buf_T *obuf = NULL; 3108 #ifdef UNIX 3109 stat_T st; 3110 #endif 3111 3112 if (ffname == NULL || *ffname == NUL) 3113 { 3114 /* Removing the name. */ 3115 if (buf->b_sfname != buf->b_ffname) 3116 VIM_CLEAR(buf->b_sfname); 3117 else 3118 buf->b_sfname = NULL; 3119 VIM_CLEAR(buf->b_ffname); 3120 #ifdef UNIX 3121 st.st_dev = (dev_T)-1; 3122 #endif 3123 } 3124 else 3125 { 3126 fname_expand(buf, &ffname, &sfname); /* will allocate ffname */ 3127 if (ffname == NULL) /* out of memory */ 3128 return FAIL; 3129 3130 /* 3131 * if the file name is already used in another buffer: 3132 * - if the buffer is loaded, fail 3133 * - if the buffer is not loaded, delete it from the list 3134 */ 3135 #ifdef UNIX 3136 if (mch_stat((char *)ffname, &st) < 0) 3137 st.st_dev = (dev_T)-1; 3138 #endif 3139 if (!(buf->b_flags & BF_DUMMY)) 3140 #ifdef UNIX 3141 obuf = buflist_findname_stat(ffname, &st); 3142 #else 3143 obuf = buflist_findname(ffname); 3144 #endif 3145 if (obuf != NULL && obuf != buf) 3146 { 3147 if (obuf->b_ml.ml_mfp != NULL) /* it's loaded, fail */ 3148 { 3149 if (message) 3150 emsg(_("E95: Buffer with this name already exists")); 3151 vim_free(ffname); 3152 return FAIL; 3153 } 3154 /* delete from the list */ 3155 close_buffer(NULL, obuf, DOBUF_WIPE, FALSE); 3156 } 3157 sfname = vim_strsave(sfname); 3158 if (ffname == NULL || sfname == NULL) 3159 { 3160 vim_free(sfname); 3161 vim_free(ffname); 3162 return FAIL; 3163 } 3164 #ifdef USE_FNAME_CASE 3165 fname_case(sfname, 0); /* set correct case for short file name */ 3166 #endif 3167 if (buf->b_sfname != buf->b_ffname) 3168 vim_free(buf->b_sfname); 3169 vim_free(buf->b_ffname); 3170 buf->b_ffname = ffname; 3171 buf->b_sfname = sfname; 3172 } 3173 buf->b_fname = buf->b_sfname; 3174 #ifdef UNIX 3175 if (st.st_dev == (dev_T)-1) 3176 buf->b_dev_valid = FALSE; 3177 else 3178 { 3179 buf->b_dev_valid = TRUE; 3180 buf->b_dev = st.st_dev; 3181 buf->b_ino = st.st_ino; 3182 } 3183 #endif 3184 3185 buf->b_shortname = FALSE; 3186 3187 buf_name_changed(buf); 3188 return OK; 3189 } 3190 3191 /* 3192 * Crude way of changing the name of a buffer. Use with care! 3193 * The name should be relative to the current directory. 3194 */ 3195 void 3196 buf_set_name(int fnum, char_u *name) 3197 { 3198 buf_T *buf; 3199 3200 buf = buflist_findnr(fnum); 3201 if (buf != NULL) 3202 { 3203 if (buf->b_sfname != buf->b_ffname) 3204 vim_free(buf->b_sfname); 3205 vim_free(buf->b_ffname); 3206 buf->b_ffname = vim_strsave(name); 3207 buf->b_sfname = NULL; 3208 /* Allocate ffname and expand into full path. Also resolves .lnk 3209 * files on Win32. */ 3210 fname_expand(buf, &buf->b_ffname, &buf->b_sfname); 3211 buf->b_fname = buf->b_sfname; 3212 } 3213 } 3214 3215 /* 3216 * Take care of what needs to be done when the name of buffer "buf" has 3217 * changed. 3218 */ 3219 void 3220 buf_name_changed(buf_T *buf) 3221 { 3222 /* 3223 * If the file name changed, also change the name of the swapfile 3224 */ 3225 if (buf->b_ml.ml_mfp != NULL) 3226 ml_setname(buf); 3227 3228 if (curwin->w_buffer == buf) 3229 check_arg_idx(curwin); /* check file name for arg list */ 3230 #ifdef FEAT_TITLE 3231 maketitle(); /* set window title */ 3232 #endif 3233 status_redraw_all(); /* status lines need to be redrawn */ 3234 fmarks_check_names(buf); /* check named file marks */ 3235 ml_timestamp(buf); /* reset timestamp */ 3236 } 3237 3238 /* 3239 * set alternate file name for current window 3240 * 3241 * Used by do_one_cmd(), do_write() and do_ecmd(). 3242 * Return the buffer. 3243 */ 3244 buf_T * 3245 setaltfname( 3246 char_u *ffname, 3247 char_u *sfname, 3248 linenr_T lnum) 3249 { 3250 buf_T *buf; 3251 3252 /* Create a buffer. 'buflisted' is not set if it's a new buffer */ 3253 buf = buflist_new(ffname, sfname, lnum, 0); 3254 if (buf != NULL && !cmdmod.keepalt) 3255 curwin->w_alt_fnum = buf->b_fnum; 3256 return buf; 3257 } 3258 3259 /* 3260 * Get alternate file name for current window. 3261 * Return NULL if there isn't any, and give error message if requested. 3262 */ 3263 char_u * 3264 getaltfname( 3265 int errmsg) /* give error message */ 3266 { 3267 char_u *fname; 3268 linenr_T dummy; 3269 3270 if (buflist_name_nr(0, &fname, &dummy) == FAIL) 3271 { 3272 if (errmsg) 3273 emsg(_(e_noalt)); 3274 return NULL; 3275 } 3276 return fname; 3277 } 3278 3279 /* 3280 * Add a file name to the buflist and return its number. 3281 * Uses same flags as buflist_new(), except BLN_DUMMY. 3282 * 3283 * used by qf_init(), main() and doarglist() 3284 */ 3285 int 3286 buflist_add(char_u *fname, int flags) 3287 { 3288 buf_T *buf; 3289 3290 buf = buflist_new(fname, NULL, (linenr_T)0, flags); 3291 if (buf != NULL) 3292 return buf->b_fnum; 3293 return 0; 3294 } 3295 3296 #if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) 3297 /* 3298 * Adjust slashes in file names. Called after 'shellslash' was set. 3299 */ 3300 void 3301 buflist_slash_adjust(void) 3302 { 3303 buf_T *bp; 3304 3305 FOR_ALL_BUFFERS(bp) 3306 { 3307 if (bp->b_ffname != NULL) 3308 slash_adjust(bp->b_ffname); 3309 if (bp->b_sfname != NULL) 3310 slash_adjust(bp->b_sfname); 3311 } 3312 } 3313 #endif 3314 3315 /* 3316 * Set alternate cursor position for the current buffer and window "win". 3317 * Also save the local window option values. 3318 */ 3319 void 3320 buflist_altfpos(win_T *win) 3321 { 3322 buflist_setfpos(curbuf, win, win->w_cursor.lnum, win->w_cursor.col, TRUE); 3323 } 3324 3325 /* 3326 * Return TRUE if 'ffname' is not the same file as current file. 3327 * Fname must have a full path (expanded by mch_FullName()). 3328 */ 3329 int 3330 otherfile(char_u *ffname) 3331 { 3332 return otherfile_buf(curbuf, ffname 3333 #ifdef UNIX 3334 , NULL 3335 #endif 3336 ); 3337 } 3338 3339 static int 3340 otherfile_buf( 3341 buf_T *buf, 3342 char_u *ffname 3343 #ifdef UNIX 3344 , stat_T *stp 3345 #endif 3346 ) 3347 { 3348 /* no name is different */ 3349 if (ffname == NULL || *ffname == NUL || buf->b_ffname == NULL) 3350 return TRUE; 3351 if (fnamecmp(ffname, buf->b_ffname) == 0) 3352 return FALSE; 3353 #ifdef UNIX 3354 { 3355 stat_T st; 3356 3357 /* If no stat_T given, get it now */ 3358 if (stp == NULL) 3359 { 3360 if (!buf->b_dev_valid || mch_stat((char *)ffname, &st) < 0) 3361 st.st_dev = (dev_T)-1; 3362 stp = &st; 3363 } 3364 /* Use dev/ino to check if the files are the same, even when the names 3365 * are different (possible with links). Still need to compare the 3366 * name above, for when the file doesn't exist yet. 3367 * Problem: The dev/ino changes when a file is deleted (and created 3368 * again) and remains the same when renamed/moved. We don't want to 3369 * mch_stat() each buffer each time, that would be too slow. Get the 3370 * dev/ino again when they appear to match, but not when they appear 3371 * to be different: Could skip a buffer when it's actually the same 3372 * file. */ 3373 if (buf_same_ino(buf, stp)) 3374 { 3375 buf_setino(buf); 3376 if (buf_same_ino(buf, stp)) 3377 return FALSE; 3378 } 3379 } 3380 #endif 3381 return TRUE; 3382 } 3383 3384 #if defined(UNIX) || defined(PROTO) 3385 /* 3386 * Set inode and device number for a buffer. 3387 * Must always be called when b_fname is changed!. 3388 */ 3389 void 3390 buf_setino(buf_T *buf) 3391 { 3392 stat_T st; 3393 3394 if (buf->b_fname != NULL && mch_stat((char *)buf->b_fname, &st) >= 0) 3395 { 3396 buf->b_dev_valid = TRUE; 3397 buf->b_dev = st.st_dev; 3398 buf->b_ino = st.st_ino; 3399 } 3400 else 3401 buf->b_dev_valid = FALSE; 3402 } 3403 3404 /* 3405 * Return TRUE if dev/ino in buffer "buf" matches with "stp". 3406 */ 3407 static int 3408 buf_same_ino( 3409 buf_T *buf, 3410 stat_T *stp) 3411 { 3412 return (buf->b_dev_valid 3413 && stp->st_dev == buf->b_dev 3414 && stp->st_ino == buf->b_ino); 3415 } 3416 #endif 3417 3418 /* 3419 * Print info about the current buffer. 3420 */ 3421 void 3422 fileinfo( 3423 int fullname, /* when non-zero print full path */ 3424 int shorthelp, 3425 int dont_truncate) 3426 { 3427 char_u *name; 3428 int n; 3429 char *p; 3430 char *buffer; 3431 size_t len; 3432 3433 buffer = (char *)alloc(IOSIZE); 3434 if (buffer == NULL) 3435 return; 3436 3437 if (fullname > 1) /* 2 CTRL-G: include buffer number */ 3438 { 3439 vim_snprintf(buffer, IOSIZE, "buf %d: ", curbuf->b_fnum); 3440 p = buffer + STRLEN(buffer); 3441 } 3442 else 3443 p = buffer; 3444 3445 *p++ = '"'; 3446 if (buf_spname(curbuf) != NULL) 3447 vim_strncpy((char_u *)p, buf_spname(curbuf), IOSIZE - (p - buffer) - 1); 3448 else 3449 { 3450 if (!fullname && curbuf->b_fname != NULL) 3451 name = curbuf->b_fname; 3452 else 3453 name = curbuf->b_ffname; 3454 home_replace(shorthelp ? curbuf : NULL, name, (char_u *)p, 3455 (int)(IOSIZE - (p - buffer)), TRUE); 3456 } 3457 3458 vim_snprintf_add(buffer, IOSIZE, "\"%s%s%s%s%s%s", 3459 curbufIsChanged() ? (shortmess(SHM_MOD) 3460 ? " [+]" : _(" [Modified]")) : " ", 3461 (curbuf->b_flags & BF_NOTEDITED) 3462 #ifdef FEAT_QUICKFIX 3463 && !bt_dontwrite(curbuf) 3464 #endif 3465 ? _("[Not edited]") : "", 3466 (curbuf->b_flags & BF_NEW) 3467 #ifdef FEAT_QUICKFIX 3468 && !bt_dontwrite(curbuf) 3469 #endif 3470 ? _("[New file]") : "", 3471 (curbuf->b_flags & BF_READERR) ? _("[Read errors]") : "", 3472 curbuf->b_p_ro ? (shortmess(SHM_RO) ? _("[RO]") 3473 : _("[readonly]")) : "", 3474 (curbufIsChanged() || (curbuf->b_flags & BF_WRITE_MASK) 3475 || curbuf->b_p_ro) ? 3476 " " : ""); 3477 /* With 32 bit longs and more than 21,474,836 lines multiplying by 100 3478 * causes an overflow, thus for large numbers divide instead. */ 3479 if (curwin->w_cursor.lnum > 1000000L) 3480 n = (int)(((long)curwin->w_cursor.lnum) / 3481 ((long)curbuf->b_ml.ml_line_count / 100L)); 3482 else 3483 n = (int)(((long)curwin->w_cursor.lnum * 100L) / 3484 (long)curbuf->b_ml.ml_line_count); 3485 if (curbuf->b_ml.ml_flags & ML_EMPTY) 3486 vim_snprintf_add(buffer, IOSIZE, "%s", _(no_lines_msg)); 3487 #ifdef FEAT_CMDL_INFO 3488 else if (p_ru) 3489 /* Current line and column are already on the screen -- webb */ 3490 vim_snprintf_add(buffer, IOSIZE, 3491 NGETTEXT("%ld line --%d%%--", "%ld lines --%d%%--", 3492 curbuf->b_ml.ml_line_count), 3493 (long)curbuf->b_ml.ml_line_count, n); 3494 #endif 3495 else 3496 { 3497 vim_snprintf_add(buffer, IOSIZE, 3498 _("line %ld of %ld --%d%%-- col "), 3499 (long)curwin->w_cursor.lnum, 3500 (long)curbuf->b_ml.ml_line_count, 3501 n); 3502 validate_virtcol(); 3503 len = STRLEN(buffer); 3504 col_print((char_u *)buffer + len, IOSIZE - len, 3505 (int)curwin->w_cursor.col + 1, (int)curwin->w_virtcol + 1); 3506 } 3507 3508 (void)append_arg_number(curwin, (char_u *)buffer, IOSIZE, 3509 !shortmess(SHM_FILE)); 3510 3511 if (dont_truncate) 3512 { 3513 /* Temporarily set msg_scroll to avoid the message being truncated. 3514 * First call msg_start() to get the message in the right place. */ 3515 msg_start(); 3516 n = msg_scroll; 3517 msg_scroll = TRUE; 3518 msg(buffer); 3519 msg_scroll = n; 3520 } 3521 else 3522 { 3523 p = (char *)msg_trunc_attr(buffer, FALSE, 0); 3524 if (restart_edit != 0 || (msg_scrolled && !need_wait_return)) 3525 /* Need to repeat the message after redrawing when: 3526 * - When restart_edit is set (otherwise there will be a delay 3527 * before redrawing). 3528 * - When the screen was scrolled but there is no wait-return 3529 * prompt. */ 3530 set_keep_msg((char_u *)p, 0); 3531 } 3532 3533 vim_free(buffer); 3534 } 3535 3536 void 3537 col_print( 3538 char_u *buf, 3539 size_t buflen, 3540 int col, 3541 int vcol) 3542 { 3543 if (col == vcol) 3544 vim_snprintf((char *)buf, buflen, "%d", col); 3545 else 3546 vim_snprintf((char *)buf, buflen, "%d-%d", col, vcol); 3547 } 3548 3549 #if defined(FEAT_TITLE) || defined(PROTO) 3550 static char_u *lasttitle = NULL; 3551 static char_u *lasticon = NULL; 3552 3553 /* 3554 * Put the file name in the title bar and icon of the window. 3555 */ 3556 void 3557 maketitle(void) 3558 { 3559 char_u *p; 3560 char_u *title_str = NULL; 3561 char_u *icon_str = NULL; 3562 int maxlen = 0; 3563 int len; 3564 int mustset; 3565 char_u buf[IOSIZE]; 3566 int off; 3567 3568 if (!redrawing()) 3569 { 3570 /* Postpone updating the title when 'lazyredraw' is set. */ 3571 need_maketitle = TRUE; 3572 return; 3573 } 3574 3575 need_maketitle = FALSE; 3576 if (!p_title && !p_icon && lasttitle == NULL && lasticon == NULL) 3577 return; // nothing to do 3578 3579 if (p_title) 3580 { 3581 if (p_titlelen > 0) 3582 { 3583 maxlen = p_titlelen * Columns / 100; 3584 if (maxlen < 10) 3585 maxlen = 10; 3586 } 3587 3588 title_str = buf; 3589 if (*p_titlestring != NUL) 3590 { 3591 #ifdef FEAT_STL_OPT 3592 if (stl_syntax & STL_IN_TITLE) 3593 { 3594 int use_sandbox = FALSE; 3595 int save_called_emsg = called_emsg; 3596 3597 # ifdef FEAT_EVAL 3598 use_sandbox = was_set_insecurely((char_u *)"titlestring", 0); 3599 # endif 3600 called_emsg = FALSE; 3601 build_stl_str_hl(curwin, title_str, sizeof(buf), 3602 p_titlestring, use_sandbox, 3603 0, maxlen, NULL, NULL); 3604 if (called_emsg) 3605 set_string_option_direct((char_u *)"titlestring", -1, 3606 (char_u *)"", OPT_FREE, SID_ERROR); 3607 called_emsg |= save_called_emsg; 3608 } 3609 else 3610 #endif 3611 title_str = p_titlestring; 3612 } 3613 else 3614 { 3615 /* format: "fname + (path) (1 of 2) - VIM" */ 3616 3617 #define SPACE_FOR_FNAME (IOSIZE - 100) 3618 #define SPACE_FOR_DIR (IOSIZE - 20) 3619 #define SPACE_FOR_ARGNR (IOSIZE - 10) /* at least room for " - VIM" */ 3620 if (curbuf->b_fname == NULL) 3621 vim_strncpy(buf, (char_u *)_("[No Name]"), SPACE_FOR_FNAME); 3622 #ifdef FEAT_TERMINAL 3623 else if (curbuf->b_term != NULL) 3624 { 3625 vim_strncpy(buf, term_get_status_text(curbuf->b_term), 3626 SPACE_FOR_FNAME); 3627 } 3628 #endif 3629 else 3630 { 3631 p = transstr(gettail(curbuf->b_fname)); 3632 vim_strncpy(buf, p, SPACE_FOR_FNAME); 3633 vim_free(p); 3634 } 3635 3636 #ifdef FEAT_TERMINAL 3637 if (curbuf->b_term == NULL) 3638 #endif 3639 switch (bufIsChanged(curbuf) 3640 + (curbuf->b_p_ro * 2) 3641 + (!curbuf->b_p_ma * 4)) 3642 { 3643 case 1: STRCAT(buf, " +"); break; 3644 case 2: STRCAT(buf, " ="); break; 3645 case 3: STRCAT(buf, " =+"); break; 3646 case 4: 3647 case 6: STRCAT(buf, " -"); break; 3648 case 5: 3649 case 7: STRCAT(buf, " -+"); break; 3650 } 3651 3652 if (curbuf->b_fname != NULL 3653 #ifdef FEAT_TERMINAL 3654 && curbuf->b_term == NULL 3655 #endif 3656 ) 3657 { 3658 /* Get path of file, replace home dir with ~ */ 3659 off = (int)STRLEN(buf); 3660 buf[off++] = ' '; 3661 buf[off++] = '('; 3662 home_replace(curbuf, curbuf->b_ffname, 3663 buf + off, SPACE_FOR_DIR - off, TRUE); 3664 #ifdef BACKSLASH_IN_FILENAME 3665 /* avoid "c:/name" to be reduced to "c" */ 3666 if (isalpha(buf[off]) && buf[off + 1] == ':') 3667 off += 2; 3668 #endif 3669 /* remove the file name */ 3670 p = gettail_sep(buf + off); 3671 if (p == buf + off) 3672 { 3673 /* must be a help buffer */ 3674 vim_strncpy(buf + off, (char_u *)_("help"), 3675 (size_t)(SPACE_FOR_DIR - off - 1)); 3676 } 3677 else 3678 *p = NUL; 3679 3680 /* Translate unprintable chars and concatenate. Keep some 3681 * room for the server name. When there is no room (very long 3682 * file name) use (...). */ 3683 if (off < SPACE_FOR_DIR) 3684 { 3685 p = transstr(buf + off); 3686 vim_strncpy(buf + off, p, (size_t)(SPACE_FOR_DIR - off)); 3687 vim_free(p); 3688 } 3689 else 3690 { 3691 vim_strncpy(buf + off, (char_u *)"...", 3692 (size_t)(SPACE_FOR_ARGNR - off)); 3693 } 3694 STRCAT(buf, ")"); 3695 } 3696 3697 append_arg_number(curwin, buf, SPACE_FOR_ARGNR, FALSE); 3698 3699 #if defined(FEAT_CLIENTSERVER) 3700 if (serverName != NULL) 3701 { 3702 STRCAT(buf, " - "); 3703 vim_strcat(buf, serverName, IOSIZE); 3704 } 3705 else 3706 #endif 3707 STRCAT(buf, " - VIM"); 3708 3709 if (maxlen > 0) 3710 { 3711 /* make it shorter by removing a bit in the middle */ 3712 if (vim_strsize(buf) > maxlen) 3713 trunc_string(buf, buf, maxlen, IOSIZE); 3714 } 3715 } 3716 } 3717 mustset = value_changed(title_str, &lasttitle); 3718 3719 if (p_icon) 3720 { 3721 icon_str = buf; 3722 if (*p_iconstring != NUL) 3723 { 3724 #ifdef FEAT_STL_OPT 3725 if (stl_syntax & STL_IN_ICON) 3726 { 3727 int use_sandbox = FALSE; 3728 int save_called_emsg = called_emsg; 3729 3730 # ifdef FEAT_EVAL 3731 use_sandbox = was_set_insecurely((char_u *)"iconstring", 0); 3732 # endif 3733 called_emsg = FALSE; 3734 build_stl_str_hl(curwin, icon_str, sizeof(buf), 3735 p_iconstring, use_sandbox, 3736 0, 0, NULL, NULL); 3737 if (called_emsg) 3738 set_string_option_direct((char_u *)"iconstring", -1, 3739 (char_u *)"", OPT_FREE, SID_ERROR); 3740 called_emsg |= save_called_emsg; 3741 } 3742 else 3743 #endif 3744 icon_str = p_iconstring; 3745 } 3746 else 3747 { 3748 if (buf_spname(curbuf) != NULL) 3749 p = buf_spname(curbuf); 3750 else /* use file name only in icon */ 3751 p = gettail(curbuf->b_ffname); 3752 *icon_str = NUL; 3753 /* Truncate name at 100 bytes. */ 3754 len = (int)STRLEN(p); 3755 if (len > 100) 3756 { 3757 len -= 100; 3758 if (has_mbyte) 3759 len += (*mb_tail_off)(p, p + len) + 1; 3760 p += len; 3761 } 3762 STRCPY(icon_str, p); 3763 trans_characters(icon_str, IOSIZE); 3764 } 3765 } 3766 3767 mustset |= value_changed(icon_str, &lasticon); 3768 3769 if (mustset) 3770 resettitle(); 3771 } 3772 3773 /* 3774 * Used for title and icon: Check if "str" differs from "*last". Set "*last" 3775 * from "str" if it does. 3776 * Return TRUE if resettitle() is to be called. 3777 */ 3778 static int 3779 value_changed(char_u *str, char_u **last) 3780 { 3781 if ((str == NULL) != (*last == NULL) 3782 || (str != NULL && *last != NULL && STRCMP(str, *last) != 0)) 3783 { 3784 vim_free(*last); 3785 if (str == NULL) 3786 { 3787 *last = NULL; 3788 mch_restore_title( 3789 last == &lasttitle ? SAVE_RESTORE_TITLE : SAVE_RESTORE_ICON); 3790 } 3791 else 3792 { 3793 *last = vim_strsave(str); 3794 return TRUE; 3795 } 3796 } 3797 return FALSE; 3798 } 3799 3800 /* 3801 * Put current window title back (used after calling a shell) 3802 */ 3803 void 3804 resettitle(void) 3805 { 3806 mch_settitle(lasttitle, lasticon); 3807 } 3808 3809 # if defined(EXITFREE) || defined(PROTO) 3810 void 3811 free_titles(void) 3812 { 3813 vim_free(lasttitle); 3814 vim_free(lasticon); 3815 } 3816 # endif 3817 3818 #endif /* FEAT_TITLE */ 3819 3820 #if defined(FEAT_STL_OPT) || defined(FEAT_GUI_TABLINE) || defined(PROTO) 3821 /* 3822 * Build a string from the status line items in "fmt". 3823 * Return length of string in screen cells. 3824 * 3825 * Normally works for window "wp", except when working for 'tabline' then it 3826 * is "curwin". 3827 * 3828 * Items are drawn interspersed with the text that surrounds it 3829 * Specials: %-<wid>(xxx%) => group, %= => middle marker, %< => truncation 3830 * Item: %-<minwid>.<maxwid><itemch> All but <itemch> are optional 3831 * 3832 * If maxwidth is not zero, the string will be filled at any middle marker 3833 * or truncated if too long, fillchar is used for all whitespace. 3834 */ 3835 int 3836 build_stl_str_hl( 3837 win_T *wp, 3838 char_u *out, /* buffer to write into != NameBuff */ 3839 size_t outlen, /* length of out[] */ 3840 char_u *fmt, 3841 int use_sandbox UNUSED, /* "fmt" was set insecurely, use sandbox */ 3842 int fillchar, 3843 int maxwidth, 3844 struct stl_hlrec *hltab, /* return: HL attributes (can be NULL) */ 3845 struct stl_hlrec *tabtab) /* return: tab page nrs (can be NULL) */ 3846 { 3847 linenr_T lnum; 3848 size_t len; 3849 char_u *p; 3850 char_u *s; 3851 char_u *t; 3852 int byteval; 3853 #ifdef FEAT_EVAL 3854 win_T *save_curwin; 3855 buf_T *save_curbuf; 3856 #endif 3857 int empty_line; 3858 colnr_T virtcol; 3859 long l; 3860 long n; 3861 int prevchar_isflag; 3862 int prevchar_isitem; 3863 int itemisflag; 3864 int fillable; 3865 char_u *str; 3866 long num; 3867 int width; 3868 int itemcnt; 3869 int curitem; 3870 int group_end_userhl; 3871 int group_start_userhl; 3872 int groupitem[STL_MAX_ITEM]; 3873 int groupdepth; 3874 struct stl_item 3875 { 3876 char_u *start; 3877 int minwid; 3878 int maxwid; 3879 enum 3880 { 3881 Normal, 3882 Empty, 3883 Group, 3884 Middle, 3885 Highlight, 3886 TabPage, 3887 Trunc 3888 } type; 3889 } item[STL_MAX_ITEM]; 3890 int minwid; 3891 int maxwid; 3892 int zeropad; 3893 char_u base; 3894 char_u opt; 3895 #define TMPLEN 70 3896 char_u tmp[TMPLEN]; 3897 char_u *usefmt = fmt; 3898 struct stl_hlrec *sp; 3899 int save_must_redraw = must_redraw; 3900 int save_redr_type = curwin->w_redr_type; 3901 3902 #ifdef FEAT_EVAL 3903 /* 3904 * When the format starts with "%!" then evaluate it as an expression and 3905 * use the result as the actual format string. 3906 */ 3907 if (fmt[0] == '%' && fmt[1] == '!') 3908 { 3909 usefmt = eval_to_string_safe(fmt + 2, NULL, use_sandbox); 3910 if (usefmt == NULL) 3911 usefmt = fmt; 3912 } 3913 #endif 3914 3915 if (fillchar == 0) 3916 fillchar = ' '; 3917 /* Can't handle a multi-byte fill character yet. */ 3918 else if (mb_char2len(fillchar) > 1) 3919 fillchar = '-'; 3920 3921 // The cursor in windows other than the current one isn't always 3922 // up-to-date, esp. because of autocommands and timers. 3923 lnum = wp->w_cursor.lnum; 3924 if (lnum > wp->w_buffer->b_ml.ml_line_count) 3925 { 3926 lnum = wp->w_buffer->b_ml.ml_line_count; 3927 wp->w_cursor.lnum = lnum; 3928 } 3929 3930 // Get line & check if empty (cursorpos will show "0-1"). Note that 3931 // p will become invalid when getting another buffer line. 3932 p = ml_get_buf(wp->w_buffer, lnum, FALSE); 3933 empty_line = (*p == NUL); 3934 3935 // Get the byte value now, in case we need it below. This is more efficient 3936 // than making a copy of the line. 3937 len = STRLEN(p); 3938 if (wp->w_cursor.col > (colnr_T)len) 3939 { 3940 // Line may have changed since checking the cursor column, or the lnum 3941 // was adjusted above. 3942 wp->w_cursor.col = (colnr_T)len; 3943 wp->w_cursor.coladd = 0; 3944 byteval = 0; 3945 } 3946 else 3947 byteval = (*mb_ptr2char)(p + wp->w_cursor.col); 3948 3949 groupdepth = 0; 3950 p = out; 3951 curitem = 0; 3952 prevchar_isflag = TRUE; 3953 prevchar_isitem = FALSE; 3954 for (s = usefmt; *s; ) 3955 { 3956 if (curitem == STL_MAX_ITEM) 3957 { 3958 /* There are too many items. Add the error code to the statusline 3959 * to give the user a hint about what went wrong. */ 3960 if (p + 6 < out + outlen) 3961 { 3962 mch_memmove(p, " E541", (size_t)5); 3963 p += 5; 3964 } 3965 break; 3966 } 3967 3968 if (*s != NUL && *s != '%') 3969 prevchar_isflag = prevchar_isitem = FALSE; 3970 3971 /* 3972 * Handle up to the next '%' or the end. 3973 */ 3974 while (*s != NUL && *s != '%' && p + 1 < out + outlen) 3975 *p++ = *s++; 3976 if (*s == NUL || p + 1 >= out + outlen) 3977 break; 3978 3979 /* 3980 * Handle one '%' item. 3981 */ 3982 s++; 3983 if (*s == NUL) /* ignore trailing % */ 3984 break; 3985 if (*s == '%') 3986 { 3987 if (p + 1 >= out + outlen) 3988 break; 3989 *p++ = *s++; 3990 prevchar_isflag = prevchar_isitem = FALSE; 3991 continue; 3992 } 3993 if (*s == STL_MIDDLEMARK) 3994 { 3995 s++; 3996 if (groupdepth > 0) 3997 continue; 3998 item[curitem].type = Middle; 3999 item[curitem++].start = p; 4000 continue; 4001 } 4002 if (*s == STL_TRUNCMARK) 4003 { 4004 s++; 4005 item[curitem].type = Trunc; 4006 item[curitem++].start = p; 4007 continue; 4008 } 4009 if (*s == ')') 4010 { 4011 s++; 4012 if (groupdepth < 1) 4013 continue; 4014 groupdepth--; 4015 4016 t = item[groupitem[groupdepth]].start; 4017 *p = NUL; 4018 l = vim_strsize(t); 4019 if (curitem > groupitem[groupdepth] + 1 4020 && item[groupitem[groupdepth]].minwid == 0) 4021 { 4022 /* remove group if all items are empty and highlight group 4023 * doesn't change */ 4024 group_start_userhl = group_end_userhl = 0; 4025 for (n = groupitem[groupdepth] - 1; n >= 0; n--) 4026 { 4027 if (item[n].type == Highlight) 4028 { 4029 group_start_userhl = group_end_userhl = item[n].minwid; 4030 break; 4031 } 4032 } 4033 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 4034 { 4035 if (item[n].type == Normal) 4036 break; 4037 if (item[n].type == Highlight) 4038 group_end_userhl = item[n].minwid; 4039 } 4040 if (n == curitem && group_start_userhl == group_end_userhl) 4041 { 4042 p = t; 4043 l = 0; 4044 } 4045 } 4046 if (l > item[groupitem[groupdepth]].maxwid) 4047 { 4048 /* truncate, remove n bytes of text at the start */ 4049 if (has_mbyte) 4050 { 4051 /* Find the first character that should be included. */ 4052 n = 0; 4053 while (l >= item[groupitem[groupdepth]].maxwid) 4054 { 4055 l -= ptr2cells(t + n); 4056 n += (*mb_ptr2len)(t + n); 4057 } 4058 } 4059 else 4060 n = (long)(p - t) - item[groupitem[groupdepth]].maxwid + 1; 4061 4062 *t = '<'; 4063 mch_memmove(t + 1, t + n, (size_t)(p - (t + n))); 4064 p = p - n + 1; 4065 4066 // Fill up space left over by half a double-wide char. 4067 while (++l < item[groupitem[groupdepth]].minwid) 4068 *p++ = fillchar; 4069 4070 /* correct the start of the items for the truncation */ 4071 for (l = groupitem[groupdepth] + 1; l < curitem; l++) 4072 { 4073 item[l].start -= n; 4074 if (item[l].start < t) 4075 item[l].start = t; 4076 } 4077 } 4078 else if (abs(item[groupitem[groupdepth]].minwid) > l) 4079 { 4080 /* fill */ 4081 n = item[groupitem[groupdepth]].minwid; 4082 if (n < 0) 4083 { 4084 /* fill by appending characters */ 4085 n = 0 - n; 4086 while (l++ < n && p + 1 < out + outlen) 4087 *p++ = fillchar; 4088 } 4089 else 4090 { 4091 /* fill by inserting characters */ 4092 mch_memmove(t + n - l, t, (size_t)(p - t)); 4093 l = n - l; 4094 if (p + l >= out + outlen) 4095 l = (long)((out + outlen) - p - 1); 4096 p += l; 4097 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 4098 item[n].start += l; 4099 for ( ; l > 0; l--) 4100 *t++ = fillchar; 4101 } 4102 } 4103 continue; 4104 } 4105 minwid = 0; 4106 maxwid = 9999; 4107 zeropad = FALSE; 4108 l = 1; 4109 if (*s == '0') 4110 { 4111 s++; 4112 zeropad = TRUE; 4113 } 4114 if (*s == '-') 4115 { 4116 s++; 4117 l = -1; 4118 } 4119 if (VIM_ISDIGIT(*s)) 4120 { 4121 minwid = (int)getdigits(&s); 4122 if (minwid < 0) /* overflow */ 4123 minwid = 0; 4124 } 4125 if (*s == STL_USER_HL) 4126 { 4127 item[curitem].type = Highlight; 4128 item[curitem].start = p; 4129 item[curitem].minwid = minwid > 9 ? 1 : minwid; 4130 s++; 4131 curitem++; 4132 continue; 4133 } 4134 if (*s == STL_TABPAGENR || *s == STL_TABCLOSENR) 4135 { 4136 if (*s == STL_TABCLOSENR) 4137 { 4138 if (minwid == 0) 4139 { 4140 /* %X ends the close label, go back to the previously 4141 * define tab label nr. */ 4142 for (n = curitem - 1; n >= 0; --n) 4143 if (item[n].type == TabPage && item[n].minwid >= 0) 4144 { 4145 minwid = item[n].minwid; 4146 break; 4147 } 4148 } 4149 else 4150 /* close nrs are stored as negative values */ 4151 minwid = - minwid; 4152 } 4153 item[curitem].type = TabPage; 4154 item[curitem].start = p; 4155 item[curitem].minwid = minwid; 4156 s++; 4157 curitem++; 4158 continue; 4159 } 4160 if (*s == '.') 4161 { 4162 s++; 4163 if (VIM_ISDIGIT(*s)) 4164 { 4165 maxwid = (int)getdigits(&s); 4166 if (maxwid <= 0) /* overflow */ 4167 maxwid = 50; 4168 } 4169 } 4170 minwid = (minwid > 50 ? 50 : minwid) * l; 4171 if (*s == '(') 4172 { 4173 groupitem[groupdepth++] = curitem; 4174 item[curitem].type = Group; 4175 item[curitem].start = p; 4176 item[curitem].minwid = minwid; 4177 item[curitem].maxwid = maxwid; 4178 s++; 4179 curitem++; 4180 continue; 4181 } 4182 if (vim_strchr(STL_ALL, *s) == NULL) 4183 { 4184 s++; 4185 continue; 4186 } 4187 opt = *s++; 4188 4189 /* OK - now for the real work */ 4190 base = 'D'; 4191 itemisflag = FALSE; 4192 fillable = TRUE; 4193 num = -1; 4194 str = NULL; 4195 switch (opt) 4196 { 4197 case STL_FILEPATH: 4198 case STL_FULLPATH: 4199 case STL_FILENAME: 4200 fillable = FALSE; /* don't change ' ' to fillchar */ 4201 if (buf_spname(wp->w_buffer) != NULL) 4202 vim_strncpy(NameBuff, buf_spname(wp->w_buffer), MAXPATHL - 1); 4203 else 4204 { 4205 t = (opt == STL_FULLPATH) ? wp->w_buffer->b_ffname 4206 : wp->w_buffer->b_fname; 4207 home_replace(wp->w_buffer, t, NameBuff, MAXPATHL, TRUE); 4208 } 4209 trans_characters(NameBuff, MAXPATHL); 4210 if (opt != STL_FILENAME) 4211 str = NameBuff; 4212 else 4213 str = gettail(NameBuff); 4214 break; 4215 4216 case STL_VIM_EXPR: /* '{' */ 4217 itemisflag = TRUE; 4218 t = p; 4219 while (*s != '}' && *s != NUL && p + 1 < out + outlen) 4220 *p++ = *s++; 4221 if (*s != '}') /* missing '}' or out of space */ 4222 break; 4223 s++; 4224 *p = 0; 4225 p = t; 4226 4227 #ifdef FEAT_EVAL 4228 vim_snprintf((char *)tmp, sizeof(tmp), "%d", curbuf->b_fnum); 4229 set_internal_string_var((char_u *)"g:actual_curbuf", tmp); 4230 4231 save_curbuf = curbuf; 4232 save_curwin = curwin; 4233 curwin = wp; 4234 curbuf = wp->w_buffer; 4235 4236 str = eval_to_string_safe(p, &t, use_sandbox); 4237 4238 curwin = save_curwin; 4239 curbuf = save_curbuf; 4240 do_unlet((char_u *)"g:actual_curbuf", TRUE); 4241 4242 if (str != NULL && *str != 0) 4243 { 4244 if (*skipdigits(str) == NUL) 4245 { 4246 num = atoi((char *)str); 4247 VIM_CLEAR(str); 4248 itemisflag = FALSE; 4249 } 4250 } 4251 #endif 4252 break; 4253 4254 case STL_LINE: 4255 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) 4256 ? 0L : (long)(wp->w_cursor.lnum); 4257 break; 4258 4259 case STL_NUMLINES: 4260 num = wp->w_buffer->b_ml.ml_line_count; 4261 break; 4262 4263 case STL_COLUMN: 4264 num = !(State & INSERT) && empty_line 4265 ? 0 : (int)wp->w_cursor.col + 1; 4266 break; 4267 4268 case STL_VIRTCOL: 4269 case STL_VIRTCOL_ALT: 4270 /* In list mode virtcol needs to be recomputed */ 4271 virtcol = wp->w_virtcol; 4272 if (wp->w_p_list && lcs_tab1 == NUL) 4273 { 4274 wp->w_p_list = FALSE; 4275 getvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL); 4276 wp->w_p_list = TRUE; 4277 } 4278 ++virtcol; 4279 /* Don't display %V if it's the same as %c. */ 4280 if (opt == STL_VIRTCOL_ALT 4281 && (virtcol == (colnr_T)(!(State & INSERT) && empty_line 4282 ? 0 : (int)wp->w_cursor.col + 1))) 4283 break; 4284 num = (long)virtcol; 4285 break; 4286 4287 case STL_PERCENTAGE: 4288 num = (int)(((long)wp->w_cursor.lnum * 100L) / 4289 (long)wp->w_buffer->b_ml.ml_line_count); 4290 break; 4291 4292 case STL_ALTPERCENT: 4293 str = tmp; 4294 get_rel_pos(wp, str, TMPLEN); 4295 break; 4296 4297 case STL_ARGLISTSTAT: 4298 fillable = FALSE; 4299 tmp[0] = 0; 4300 if (append_arg_number(wp, tmp, (int)sizeof(tmp), FALSE)) 4301 str = tmp; 4302 break; 4303 4304 case STL_KEYMAP: 4305 fillable = FALSE; 4306 if (get_keymap_str(wp, (char_u *)"<%s>", tmp, TMPLEN)) 4307 str = tmp; 4308 break; 4309 case STL_PAGENUM: 4310 #if defined(FEAT_PRINTER) || defined(FEAT_GUI_TABLINE) 4311 num = printer_page_num; 4312 #else 4313 num = 0; 4314 #endif 4315 break; 4316 4317 case STL_BUFNO: 4318 num = wp->w_buffer->b_fnum; 4319 break; 4320 4321 case STL_OFFSET_X: 4322 base = 'X'; 4323 /* FALLTHROUGH */ 4324 case STL_OFFSET: 4325 #ifdef FEAT_BYTEOFF 4326 l = ml_find_line_or_offset(wp->w_buffer, wp->w_cursor.lnum, NULL); 4327 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) || l < 0 ? 4328 0L : l + 1 + (!(State & INSERT) && empty_line ? 4329 0 : (int)wp->w_cursor.col); 4330 #endif 4331 break; 4332 4333 case STL_BYTEVAL_X: 4334 base = 'X'; 4335 /* FALLTHROUGH */ 4336 case STL_BYTEVAL: 4337 num = byteval; 4338 if (num == NL) 4339 num = 0; 4340 else if (num == CAR && get_fileformat(wp->w_buffer) == EOL_MAC) 4341 num = NL; 4342 break; 4343 4344 case STL_ROFLAG: 4345 case STL_ROFLAG_ALT: 4346 itemisflag = TRUE; 4347 if (wp->w_buffer->b_p_ro) 4348 str = (char_u *)((opt == STL_ROFLAG_ALT) ? ",RO" : _("[RO]")); 4349 break; 4350 4351 case STL_HELPFLAG: 4352 case STL_HELPFLAG_ALT: 4353 itemisflag = TRUE; 4354 if (wp->w_buffer->b_help) 4355 str = (char_u *)((opt == STL_HELPFLAG_ALT) ? ",HLP" 4356 : _("[Help]")); 4357 break; 4358 4359 case STL_FILETYPE: 4360 if (*wp->w_buffer->b_p_ft != NUL 4361 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 3) 4362 { 4363 vim_snprintf((char *)tmp, sizeof(tmp), "[%s]", 4364 wp->w_buffer->b_p_ft); 4365 str = tmp; 4366 } 4367 break; 4368 4369 case STL_FILETYPE_ALT: 4370 itemisflag = TRUE; 4371 if (*wp->w_buffer->b_p_ft != NUL 4372 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 2) 4373 { 4374 vim_snprintf((char *)tmp, sizeof(tmp), ",%s", 4375 wp->w_buffer->b_p_ft); 4376 for (t = tmp; *t != 0; t++) 4377 *t = TOUPPER_LOC(*t); 4378 str = tmp; 4379 } 4380 break; 4381 4382 #if defined(FEAT_QUICKFIX) 4383 case STL_PREVIEWFLAG: 4384 case STL_PREVIEWFLAG_ALT: 4385 itemisflag = TRUE; 4386 if (wp->w_p_pvw) 4387 str = (char_u *)((opt == STL_PREVIEWFLAG_ALT) ? ",PRV" 4388 : _("[Preview]")); 4389 break; 4390 4391 case STL_QUICKFIX: 4392 if (bt_quickfix(wp->w_buffer)) 4393 str = (char_u *)(wp->w_llist_ref 4394 ? _(msg_loclist) 4395 : _(msg_qflist)); 4396 break; 4397 #endif 4398 4399 case STL_MODIFIED: 4400 case STL_MODIFIED_ALT: 4401 itemisflag = TRUE; 4402 switch ((opt == STL_MODIFIED_ALT) 4403 + bufIsChanged(wp->w_buffer) * 2 4404 + (!wp->w_buffer->b_p_ma) * 4) 4405 { 4406 case 2: str = (char_u *)"[+]"; break; 4407 case 3: str = (char_u *)",+"; break; 4408 case 4: str = (char_u *)"[-]"; break; 4409 case 5: str = (char_u *)",-"; break; 4410 case 6: str = (char_u *)"[+-]"; break; 4411 case 7: str = (char_u *)",+-"; break; 4412 } 4413 break; 4414 4415 case STL_HIGHLIGHT: 4416 t = s; 4417 while (*s != '#' && *s != NUL) 4418 ++s; 4419 if (*s == '#') 4420 { 4421 item[curitem].type = Highlight; 4422 item[curitem].start = p; 4423 item[curitem].minwid = -syn_namen2id(t, (int)(s - t)); 4424 curitem++; 4425 } 4426 if (*s != NUL) 4427 ++s; 4428 continue; 4429 } 4430 4431 item[curitem].start = p; 4432 item[curitem].type = Normal; 4433 if (str != NULL && *str) 4434 { 4435 t = str; 4436 if (itemisflag) 4437 { 4438 if ((t[0] && t[1]) 4439 && ((!prevchar_isitem && *t == ',') 4440 || (prevchar_isflag && *t == ' '))) 4441 t++; 4442 prevchar_isflag = TRUE; 4443 } 4444 l = vim_strsize(t); 4445 if (l > 0) 4446 prevchar_isitem = TRUE; 4447 if (l > maxwid) 4448 { 4449 while (l >= maxwid) 4450 if (has_mbyte) 4451 { 4452 l -= ptr2cells(t); 4453 t += (*mb_ptr2len)(t); 4454 } 4455 else 4456 l -= byte2cells(*t++); 4457 if (p + 1 >= out + outlen) 4458 break; 4459 *p++ = '<'; 4460 } 4461 if (minwid > 0) 4462 { 4463 for (; l < minwid && p + 1 < out + outlen; l++) 4464 { 4465 /* Don't put a "-" in front of a digit. */ 4466 if (l + 1 == minwid && fillchar == '-' && VIM_ISDIGIT(*t)) 4467 *p++ = ' '; 4468 else 4469 *p++ = fillchar; 4470 } 4471 minwid = 0; 4472 } 4473 else 4474 minwid *= -1; 4475 while (*t && p + 1 < out + outlen) 4476 { 4477 *p++ = *t++; 4478 /* Change a space by fillchar, unless fillchar is '-' and a 4479 * digit follows. */ 4480 if (fillable && p[-1] == ' ' 4481 && (!VIM_ISDIGIT(*t) || fillchar != '-')) 4482 p[-1] = fillchar; 4483 } 4484 for (; l < minwid && p + 1 < out + outlen; l++) 4485 *p++ = fillchar; 4486 } 4487 else if (num >= 0) 4488 { 4489 int nbase = (base == 'D' ? 10 : (base == 'O' ? 8 : 16)); 4490 char_u nstr[20]; 4491 4492 if (p + 20 >= out + outlen) 4493 break; /* not sufficient space */ 4494 prevchar_isitem = TRUE; 4495 t = nstr; 4496 if (opt == STL_VIRTCOL_ALT) 4497 { 4498 *t++ = '-'; 4499 minwid--; 4500 } 4501 *t++ = '%'; 4502 if (zeropad) 4503 *t++ = '0'; 4504 *t++ = '*'; 4505 *t++ = nbase == 16 ? base : (char_u)(nbase == 8 ? 'o' : 'd'); 4506 *t = 0; 4507 4508 for (n = num, l = 1; n >= nbase; n /= nbase) 4509 l++; 4510 if (opt == STL_VIRTCOL_ALT) 4511 l++; 4512 if (l > maxwid) 4513 { 4514 l += 2; 4515 n = l - maxwid; 4516 while (l-- > maxwid) 4517 num /= nbase; 4518 *t++ = '>'; 4519 *t++ = '%'; 4520 *t = t[-3]; 4521 *++t = 0; 4522 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4523 0, num, n); 4524 } 4525 else 4526 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4527 minwid, num); 4528 p += STRLEN(p); 4529 } 4530 else 4531 item[curitem].type = Empty; 4532 4533 if (opt == STL_VIM_EXPR) 4534 vim_free(str); 4535 4536 if (num >= 0 || (!itemisflag && str && *str)) 4537 prevchar_isflag = FALSE; /* Item not NULL, but not a flag */ 4538 curitem++; 4539 } 4540 *p = NUL; 4541 itemcnt = curitem; 4542 4543 #ifdef FEAT_EVAL 4544 if (usefmt != fmt) 4545 vim_free(usefmt); 4546 #endif 4547 4548 width = vim_strsize(out); 4549 if (maxwidth > 0 && width > maxwidth) 4550 { 4551 /* Result is too long, must truncate somewhere. */ 4552 l = 0; 4553 if (itemcnt == 0) 4554 s = out; 4555 else 4556 { 4557 for ( ; l < itemcnt; l++) 4558 if (item[l].type == Trunc) 4559 { 4560 /* Truncate at %< item. */ 4561 s = item[l].start; 4562 break; 4563 } 4564 if (l == itemcnt) 4565 { 4566 /* No %< item, truncate first item. */ 4567 s = item[0].start; 4568 l = 0; 4569 } 4570 } 4571 4572 if (width - vim_strsize(s) >= maxwidth) 4573 { 4574 /* Truncation mark is beyond max length */ 4575 if (has_mbyte) 4576 { 4577 s = out; 4578 width = 0; 4579 for (;;) 4580 { 4581 width += ptr2cells(s); 4582 if (width >= maxwidth) 4583 break; 4584 s += (*mb_ptr2len)(s); 4585 } 4586 /* Fill up for half a double-wide character. */ 4587 while (++width < maxwidth) 4588 *s++ = fillchar; 4589 } 4590 else 4591 s = out + maxwidth - 1; 4592 for (l = 0; l < itemcnt; l++) 4593 if (item[l].start > s) 4594 break; 4595 itemcnt = l; 4596 *s++ = '>'; 4597 *s = 0; 4598 } 4599 else 4600 { 4601 if (has_mbyte) 4602 { 4603 n = 0; 4604 while (width >= maxwidth) 4605 { 4606 width -= ptr2cells(s + n); 4607 n += (*mb_ptr2len)(s + n); 4608 } 4609 } 4610 else 4611 n = width - maxwidth + 1; 4612 p = s + n; 4613 STRMOVE(s + 1, p); 4614 *s = '<'; 4615 4616 /* Fill up for half a double-wide character. */ 4617 while (++width < maxwidth) 4618 { 4619 s = s + STRLEN(s); 4620 *s++ = fillchar; 4621 *s = NUL; 4622 } 4623 4624 --n; /* count the '<' */ 4625 for (; l < itemcnt; l++) 4626 { 4627 if (item[l].start - n >= s) 4628 item[l].start -= n; 4629 else 4630 item[l].start = s; 4631 } 4632 } 4633 width = maxwidth; 4634 } 4635 else if (width < maxwidth && STRLEN(out) + maxwidth - width + 1 < outlen) 4636 { 4637 /* Apply STL_MIDDLE if any */ 4638 for (l = 0; l < itemcnt; l++) 4639 if (item[l].type == Middle) 4640 break; 4641 if (l < itemcnt) 4642 { 4643 p = item[l].start + maxwidth - width; 4644 STRMOVE(p, item[l].start); 4645 for (s = item[l].start; s < p; s++) 4646 *s = fillchar; 4647 for (l++; l < itemcnt; l++) 4648 item[l].start += maxwidth - width; 4649 width = maxwidth; 4650 } 4651 } 4652 4653 /* Store the info about highlighting. */ 4654 if (hltab != NULL) 4655 { 4656 sp = hltab; 4657 for (l = 0; l < itemcnt; l++) 4658 { 4659 if (item[l].type == Highlight) 4660 { 4661 sp->start = item[l].start; 4662 sp->userhl = item[l].minwid; 4663 sp++; 4664 } 4665 } 4666 sp->start = NULL; 4667 sp->userhl = 0; 4668 } 4669 4670 /* Store the info about tab pages labels. */ 4671 if (tabtab != NULL) 4672 { 4673 sp = tabtab; 4674 for (l = 0; l < itemcnt; l++) 4675 { 4676 if (item[l].type == TabPage) 4677 { 4678 sp->start = item[l].start; 4679 sp->userhl = item[l].minwid; 4680 sp++; 4681 } 4682 } 4683 sp->start = NULL; 4684 sp->userhl = 0; 4685 } 4686 4687 /* When inside update_screen we do not want redrawing a stausline, ruler, 4688 * title, etc. to trigger another redraw, it may cause an endless loop. */ 4689 if (updating_screen) 4690 { 4691 must_redraw = save_must_redraw; 4692 curwin->w_redr_type = save_redr_type; 4693 } 4694 4695 return width; 4696 } 4697 #endif /* FEAT_STL_OPT */ 4698 4699 #if defined(FEAT_STL_OPT) || defined(FEAT_CMDL_INFO) \ 4700 || defined(FEAT_GUI_TABLINE) || defined(PROTO) 4701 /* 4702 * Get relative cursor position in window into "buf[buflen]", in the form 99%, 4703 * using "Top", "Bot" or "All" when appropriate. 4704 */ 4705 void 4706 get_rel_pos( 4707 win_T *wp, 4708 char_u *buf, 4709 int buflen) 4710 { 4711 long above; /* number of lines above window */ 4712 long below; /* number of lines below window */ 4713 4714 if (buflen < 3) /* need at least 3 chars for writing */ 4715 return; 4716 above = wp->w_topline - 1; 4717 #ifdef FEAT_DIFF 4718 above += diff_check_fill(wp, wp->w_topline) - wp->w_topfill; 4719 if (wp->w_topline == 1 && wp->w_topfill >= 1) 4720 above = 0; /* All buffer lines are displayed and there is an 4721 * indication of filler lines, that can be considered 4722 * seeing all lines. */ 4723 #endif 4724 below = wp->w_buffer->b_ml.ml_line_count - wp->w_botline + 1; 4725 if (below <= 0) 4726 vim_strncpy(buf, (char_u *)(above == 0 ? _("All") : _("Bot")), 4727 (size_t)(buflen - 1)); 4728 else if (above <= 0) 4729 vim_strncpy(buf, (char_u *)_("Top"), (size_t)(buflen - 1)); 4730 else 4731 vim_snprintf((char *)buf, (size_t)buflen, "%2d%%", above > 1000000L 4732 ? (int)(above / ((above + below) / 100L)) 4733 : (int)(above * 100L / (above + below))); 4734 } 4735 #endif 4736 4737 /* 4738 * Append (file 2 of 8) to "buf[buflen]", if editing more than one file. 4739 * Return TRUE if it was appended. 4740 */ 4741 static int 4742 append_arg_number( 4743 win_T *wp, 4744 char_u *buf, 4745 int buflen, 4746 int add_file) /* Add "file" before the arg number */ 4747 { 4748 char_u *p; 4749 4750 if (ARGCOUNT <= 1) /* nothing to do */ 4751 return FALSE; 4752 4753 p = buf + STRLEN(buf); /* go to the end of the buffer */ 4754 if (p - buf + 35 >= buflen) /* getting too long */ 4755 return FALSE; 4756 *p++ = ' '; 4757 *p++ = '('; 4758 if (add_file) 4759 { 4760 STRCPY(p, "file "); 4761 p += 5; 4762 } 4763 vim_snprintf((char *)p, (size_t)(buflen - (p - buf)), 4764 wp->w_arg_idx_invalid ? "(%d) of %d)" 4765 : "%d of %d)", wp->w_arg_idx + 1, ARGCOUNT); 4766 return TRUE; 4767 } 4768 4769 /* 4770 * If fname is not a full path, make it a full path. 4771 * Returns pointer to allocated memory (NULL for failure). 4772 */ 4773 char_u * 4774 fix_fname(char_u *fname) 4775 { 4776 /* 4777 * Force expanding the path always for Unix, because symbolic links may 4778 * mess up the full path name, even though it starts with a '/'. 4779 * Also expand when there is ".." in the file name, try to remove it, 4780 * because "c:/src/../README" is equal to "c:/README". 4781 * Similarly "c:/src//file" is equal to "c:/src/file". 4782 * For MS-Windows also expand names like "longna~1" to "longname". 4783 */ 4784 #ifdef UNIX 4785 return FullName_save(fname, TRUE); 4786 #else 4787 if (!vim_isAbsName(fname) 4788 || strstr((char *)fname, "..") != NULL 4789 || strstr((char *)fname, "//") != NULL 4790 # ifdef BACKSLASH_IN_FILENAME 4791 || strstr((char *)fname, "\\\\") != NULL 4792 # endif 4793 # if defined(MSWIN) 4794 || vim_strchr(fname, '~') != NULL 4795 # endif 4796 ) 4797 return FullName_save(fname, FALSE); 4798 4799 fname = vim_strsave(fname); 4800 4801 # ifdef USE_FNAME_CASE 4802 if (fname != NULL) 4803 fname_case(fname, 0); /* set correct case for file name */ 4804 # endif 4805 4806 return fname; 4807 #endif 4808 } 4809 4810 /* 4811 * Make "*ffname" a full file name, set "*sfname" to "*ffname" if not NULL. 4812 * "*ffname" becomes a pointer to allocated memory (or NULL). 4813 * When resolving a link both "*sfname" and "*ffname" will point to the same 4814 * allocated memory. 4815 * The "*ffname" and "*sfname" pointer values on call will not be freed. 4816 * Note that the resulting "*ffname" pointer should be considered not allocaed. 4817 */ 4818 void 4819 fname_expand( 4820 buf_T *buf UNUSED, 4821 char_u **ffname, 4822 char_u **sfname) 4823 { 4824 if (*ffname == NULL) // no file name given, nothing to do 4825 return; 4826 if (*sfname == NULL) // no short file name given, use ffname 4827 *sfname = *ffname; 4828 *ffname = fix_fname(*ffname); // expand to full path 4829 4830 #ifdef FEAT_SHORTCUT 4831 if (!buf->b_p_bin) 4832 { 4833 char_u *rfname; 4834 4835 // If the file name is a shortcut file, use the file it links to. 4836 rfname = mch_resolve_path(*ffname, FALSE); 4837 if (rfname != NULL) 4838 { 4839 vim_free(*ffname); 4840 *ffname = rfname; 4841 *sfname = rfname; 4842 } 4843 } 4844 #endif 4845 } 4846 4847 /* 4848 * Get the file name for an argument list entry. 4849 */ 4850 char_u * 4851 alist_name(aentry_T *aep) 4852 { 4853 buf_T *bp; 4854 4855 /* Use the name from the associated buffer if it exists. */ 4856 bp = buflist_findnr(aep->ae_fnum); 4857 if (bp == NULL || bp->b_fname == NULL) 4858 return aep->ae_fname; 4859 return bp->b_fname; 4860 } 4861 4862 /* 4863 * do_arg_all(): Open up to 'count' windows, one for each argument. 4864 */ 4865 void 4866 do_arg_all( 4867 int count, 4868 int forceit, /* hide buffers in current windows */ 4869 int keep_tabs) /* keep current tabs, for ":tab drop file" */ 4870 { 4871 int i; 4872 win_T *wp, *wpnext; 4873 char_u *opened; /* Array of weight for which args are open: 4874 * 0: not opened 4875 * 1: opened in other tab 4876 * 2: opened in curtab 4877 * 3: opened in curtab and curwin 4878 */ 4879 int opened_len; /* length of opened[] */ 4880 int use_firstwin = FALSE; /* use first window for arglist */ 4881 int split_ret = OK; 4882 int p_ea_save; 4883 alist_T *alist; /* argument list to be used */ 4884 buf_T *buf; 4885 tabpage_T *tpnext; 4886 int had_tab = cmdmod.tab; 4887 win_T *old_curwin, *last_curwin; 4888 tabpage_T *old_curtab, *last_curtab; 4889 win_T *new_curwin = NULL; 4890 tabpage_T *new_curtab = NULL; 4891 4892 if (ARGCOUNT <= 0) 4893 { 4894 /* Don't give an error message. We don't want it when the ":all" 4895 * command is in the .vimrc. */ 4896 return; 4897 } 4898 setpcmark(); 4899 4900 opened_len = ARGCOUNT; 4901 opened = alloc_clear((unsigned)opened_len); 4902 if (opened == NULL) 4903 return; 4904 4905 /* Autocommands may do anything to the argument list. Make sure it's not 4906 * freed while we are working here by "locking" it. We still have to 4907 * watch out for its size to be changed. */ 4908 alist = curwin->w_alist; 4909 ++alist->al_refcount; 4910 4911 old_curwin = curwin; 4912 old_curtab = curtab; 4913 4914 # ifdef FEAT_GUI 4915 need_mouse_correct = TRUE; 4916 # endif 4917 4918 /* 4919 * Try closing all windows that are not in the argument list. 4920 * Also close windows that are not full width; 4921 * When 'hidden' or "forceit" set the buffer becomes hidden. 4922 * Windows that have a changed buffer and can't be hidden won't be closed. 4923 * When the ":tab" modifier was used do this for all tab pages. 4924 */ 4925 if (had_tab > 0) 4926 goto_tabpage_tp(first_tabpage, TRUE, TRUE); 4927 for (;;) 4928 { 4929 tpnext = curtab->tp_next; 4930 for (wp = firstwin; wp != NULL; wp = wpnext) 4931 { 4932 wpnext = wp->w_next; 4933 buf = wp->w_buffer; 4934 if (buf->b_ffname == NULL 4935 || (!keep_tabs && (buf->b_nwindows > 1 4936 || wp->w_width != Columns))) 4937 i = opened_len; 4938 else 4939 { 4940 /* check if the buffer in this window is in the arglist */ 4941 for (i = 0; i < opened_len; ++i) 4942 { 4943 if (i < alist->al_ga.ga_len 4944 && (AARGLIST(alist)[i].ae_fnum == buf->b_fnum 4945 || fullpathcmp(alist_name(&AARGLIST(alist)[i]), 4946 buf->b_ffname, TRUE) & FPC_SAME)) 4947 { 4948 int weight = 1; 4949 4950 if (old_curtab == curtab) 4951 { 4952 ++weight; 4953 if (old_curwin == wp) 4954 ++weight; 4955 } 4956 4957 if (weight > (int)opened[i]) 4958 { 4959 opened[i] = (char_u)weight; 4960 if (i == 0) 4961 { 4962 if (new_curwin != NULL) 4963 new_curwin->w_arg_idx = opened_len; 4964 new_curwin = wp; 4965 new_curtab = curtab; 4966 } 4967 } 4968 else if (keep_tabs) 4969 i = opened_len; 4970 4971 if (wp->w_alist != alist) 4972 { 4973 /* Use the current argument list for all windows 4974 * containing a file from it. */ 4975 alist_unlink(wp->w_alist); 4976 wp->w_alist = alist; 4977 ++wp->w_alist->al_refcount; 4978 } 4979 break; 4980 } 4981 } 4982 } 4983 wp->w_arg_idx = i; 4984 4985 if (i == opened_len && !keep_tabs)/* close this window */ 4986 { 4987 if (buf_hide(buf) || forceit || buf->b_nwindows > 1 4988 || !bufIsChanged(buf)) 4989 { 4990 /* If the buffer was changed, and we would like to hide it, 4991 * try autowriting. */ 4992 if (!buf_hide(buf) && buf->b_nwindows <= 1 4993 && bufIsChanged(buf)) 4994 { 4995 bufref_T bufref; 4996 4997 set_bufref(&bufref, buf); 4998 4999 (void)autowrite(buf, FALSE); 5000 5001 /* check if autocommands removed the window */ 5002 if (!win_valid(wp) || !bufref_valid(&bufref)) 5003 { 5004 wpnext = firstwin; /* start all over... */ 5005 continue; 5006 } 5007 } 5008 /* don't close last window */ 5009 if (ONE_WINDOW 5010 && (first_tabpage->tp_next == NULL || !had_tab)) 5011 use_firstwin = TRUE; 5012 else 5013 { 5014 win_close(wp, !buf_hide(buf) && !bufIsChanged(buf)); 5015 5016 /* check if autocommands removed the next window */ 5017 if (!win_valid(wpnext)) 5018 wpnext = firstwin; /* start all over... */ 5019 } 5020 } 5021 } 5022 } 5023 5024 /* Without the ":tab" modifier only do the current tab page. */ 5025 if (had_tab == 0 || tpnext == NULL) 5026 break; 5027 5028 /* check if autocommands removed the next tab page */ 5029 if (!valid_tabpage(tpnext)) 5030 tpnext = first_tabpage; /* start all over...*/ 5031 5032 goto_tabpage_tp(tpnext, TRUE, TRUE); 5033 } 5034 5035 /* 5036 * Open a window for files in the argument list that don't have one. 5037 * ARGCOUNT may change while doing this, because of autocommands. 5038 */ 5039 if (count > opened_len || count <= 0) 5040 count = opened_len; 5041 5042 /* Don't execute Win/Buf Enter/Leave autocommands here. */ 5043 ++autocmd_no_enter; 5044 ++autocmd_no_leave; 5045 last_curwin = curwin; 5046 last_curtab = curtab; 5047 win_enter(lastwin, FALSE); 5048 /* ":drop all" should re-use an empty window to avoid "--remote-tab" 5049 * leaving an empty tab page when executed locally. */ 5050 if (keep_tabs && BUFEMPTY() && curbuf->b_nwindows == 1 5051 && curbuf->b_ffname == NULL && !curbuf->b_changed) 5052 use_firstwin = TRUE; 5053 5054 for (i = 0; i < count && i < opened_len && !got_int; ++i) 5055 { 5056 if (alist == &global_alist && i == global_alist.al_ga.ga_len - 1) 5057 arg_had_last = TRUE; 5058 if (opened[i] > 0) 5059 { 5060 /* Move the already present window to below the current window */ 5061 if (curwin->w_arg_idx != i) 5062 { 5063 for (wpnext = firstwin; wpnext != NULL; wpnext = wpnext->w_next) 5064 { 5065 if (wpnext->w_arg_idx == i) 5066 { 5067 if (keep_tabs) 5068 { 5069 new_curwin = wpnext; 5070 new_curtab = curtab; 5071 } 5072 else 5073 win_move_after(wpnext, curwin); 5074 break; 5075 } 5076 } 5077 } 5078 } 5079 else if (split_ret == OK) 5080 { 5081 if (!use_firstwin) /* split current window */ 5082 { 5083 p_ea_save = p_ea; 5084 p_ea = TRUE; /* use space from all windows */ 5085 split_ret = win_split(0, WSP_ROOM | WSP_BELOW); 5086 p_ea = p_ea_save; 5087 if (split_ret == FAIL) 5088 continue; 5089 } 5090 else /* first window: do autocmd for leaving this buffer */ 5091 --autocmd_no_leave; 5092 5093 /* 5094 * edit file "i" 5095 */ 5096 curwin->w_arg_idx = i; 5097 if (i == 0) 5098 { 5099 new_curwin = curwin; 5100 new_curtab = curtab; 5101 } 5102 (void)do_ecmd(0, alist_name(&AARGLIST(alist)[i]), NULL, NULL, 5103 ECMD_ONE, 5104 ((buf_hide(curwin->w_buffer) 5105 || bufIsChanged(curwin->w_buffer)) ? ECMD_HIDE : 0) 5106 + ECMD_OLDBUF, curwin); 5107 if (use_firstwin) 5108 ++autocmd_no_leave; 5109 use_firstwin = FALSE; 5110 } 5111 ui_breakcheck(); 5112 5113 /* When ":tab" was used open a new tab for a new window repeatedly. */ 5114 if (had_tab > 0 && tabpage_index(NULL) <= p_tpm) 5115 cmdmod.tab = 9999; 5116 } 5117 5118 /* Remove the "lock" on the argument list. */ 5119 alist_unlink(alist); 5120 5121 --autocmd_no_enter; 5122 5123 /* restore last referenced tabpage's curwin */ 5124 if (last_curtab != new_curtab) 5125 { 5126 if (valid_tabpage(last_curtab)) 5127 goto_tabpage_tp(last_curtab, TRUE, TRUE); 5128 if (win_valid(last_curwin)) 5129 win_enter(last_curwin, FALSE); 5130 } 5131 /* to window with first arg */ 5132 if (valid_tabpage(new_curtab)) 5133 goto_tabpage_tp(new_curtab, TRUE, TRUE); 5134 if (win_valid(new_curwin)) 5135 win_enter(new_curwin, FALSE); 5136 5137 --autocmd_no_leave; 5138 vim_free(opened); 5139 } 5140 5141 /* 5142 * Open a window for a number of buffers. 5143 */ 5144 void 5145 ex_buffer_all(exarg_T *eap) 5146 { 5147 buf_T *buf; 5148 win_T *wp, *wpnext; 5149 int split_ret = OK; 5150 int p_ea_save; 5151 int open_wins = 0; 5152 int r; 5153 int count; /* Maximum number of windows to open. */ 5154 int all; /* When TRUE also load inactive buffers. */ 5155 int had_tab = cmdmod.tab; 5156 tabpage_T *tpnext; 5157 5158 if (eap->addr_count == 0) /* make as many windows as possible */ 5159 count = 9999; 5160 else 5161 count = eap->line2; /* make as many windows as specified */ 5162 if (eap->cmdidx == CMD_unhide || eap->cmdidx == CMD_sunhide) 5163 all = FALSE; 5164 else 5165 all = TRUE; 5166 5167 setpcmark(); 5168 5169 #ifdef FEAT_GUI 5170 need_mouse_correct = TRUE; 5171 #endif 5172 5173 /* 5174 * Close superfluous windows (two windows for the same buffer). 5175 * Also close windows that are not full-width. 5176 */ 5177 if (had_tab > 0) 5178 goto_tabpage_tp(first_tabpage, TRUE, TRUE); 5179 for (;;) 5180 { 5181 tpnext = curtab->tp_next; 5182 for (wp = firstwin; wp != NULL; wp = wpnext) 5183 { 5184 wpnext = wp->w_next; 5185 if ((wp->w_buffer->b_nwindows > 1 5186 || ((cmdmod.split & WSP_VERT) 5187 ? wp->w_height + wp->w_status_height < Rows - p_ch 5188 - tabline_height() 5189 : wp->w_width != Columns) 5190 || (had_tab > 0 && wp != firstwin)) && !ONE_WINDOW 5191 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 5192 { 5193 win_close(wp, FALSE); 5194 wpnext = firstwin; /* just in case an autocommand does 5195 something strange with windows */ 5196 tpnext = first_tabpage; /* start all over... */ 5197 open_wins = 0; 5198 } 5199 else 5200 ++open_wins; 5201 } 5202 5203 /* Without the ":tab" modifier only do the current tab page. */ 5204 if (had_tab == 0 || tpnext == NULL) 5205 break; 5206 goto_tabpage_tp(tpnext, TRUE, TRUE); 5207 } 5208 5209 /* 5210 * Go through the buffer list. When a buffer doesn't have a window yet, 5211 * open one. Otherwise move the window to the right position. 5212 * Watch out for autocommands that delete buffers or windows! 5213 */ 5214 /* Don't execute Win/Buf Enter/Leave autocommands here. */ 5215 ++autocmd_no_enter; 5216 win_enter(lastwin, FALSE); 5217 ++autocmd_no_leave; 5218 for (buf = firstbuf; buf != NULL && open_wins < count; buf = buf->b_next) 5219 { 5220 /* Check if this buffer needs a window */ 5221 if ((!all && buf->b_ml.ml_mfp == NULL) || !buf->b_p_bl) 5222 continue; 5223 5224 if (had_tab != 0) 5225 { 5226 /* With the ":tab" modifier don't move the window. */ 5227 if (buf->b_nwindows > 0) 5228 wp = lastwin; /* buffer has a window, skip it */ 5229 else 5230 wp = NULL; 5231 } 5232 else 5233 { 5234 /* Check if this buffer already has a window */ 5235 FOR_ALL_WINDOWS(wp) 5236 if (wp->w_buffer == buf) 5237 break; 5238 /* If the buffer already has a window, move it */ 5239 if (wp != NULL) 5240 win_move_after(wp, curwin); 5241 } 5242 5243 if (wp == NULL && split_ret == OK) 5244 { 5245 bufref_T bufref; 5246 5247 set_bufref(&bufref, buf); 5248 5249 /* Split the window and put the buffer in it */ 5250 p_ea_save = p_ea; 5251 p_ea = TRUE; /* use space from all windows */ 5252 split_ret = win_split(0, WSP_ROOM | WSP_BELOW); 5253 ++open_wins; 5254 p_ea = p_ea_save; 5255 if (split_ret == FAIL) 5256 continue; 5257 5258 /* Open the buffer in this window. */ 5259 #if defined(HAS_SWAP_EXISTS_ACTION) 5260 swap_exists_action = SEA_DIALOG; 5261 #endif 5262 set_curbuf(buf, DOBUF_GOTO); 5263 if (!bufref_valid(&bufref)) 5264 { 5265 /* autocommands deleted the buffer!!! */ 5266 #if defined(HAS_SWAP_EXISTS_ACTION) 5267 swap_exists_action = SEA_NONE; 5268 #endif 5269 break; 5270 } 5271 #if defined(HAS_SWAP_EXISTS_ACTION) 5272 if (swap_exists_action == SEA_QUIT) 5273 { 5274 # if defined(FEAT_EVAL) 5275 cleanup_T cs; 5276 5277 /* Reset the error/interrupt/exception state here so that 5278 * aborting() returns FALSE when closing a window. */ 5279 enter_cleanup(&cs); 5280 # endif 5281 5282 /* User selected Quit at ATTENTION prompt; close this window. */ 5283 win_close(curwin, TRUE); 5284 --open_wins; 5285 swap_exists_action = SEA_NONE; 5286 swap_exists_did_quit = TRUE; 5287 5288 # if defined(FEAT_EVAL) 5289 /* Restore the error/interrupt/exception state if not 5290 * discarded by a new aborting error, interrupt, or uncaught 5291 * exception. */ 5292 leave_cleanup(&cs); 5293 # endif 5294 } 5295 else 5296 handle_swap_exists(NULL); 5297 #endif 5298 } 5299 5300 ui_breakcheck(); 5301 if (got_int) 5302 { 5303 (void)vgetc(); /* only break the file loading, not the rest */ 5304 break; 5305 } 5306 #ifdef FEAT_EVAL 5307 /* Autocommands deleted the buffer or aborted script processing!!! */ 5308 if (aborting()) 5309 break; 5310 #endif 5311 /* When ":tab" was used open a new tab for a new window repeatedly. */ 5312 if (had_tab > 0 && tabpage_index(NULL) <= p_tpm) 5313 cmdmod.tab = 9999; 5314 } 5315 --autocmd_no_enter; 5316 win_enter(firstwin, FALSE); /* back to first window */ 5317 --autocmd_no_leave; 5318 5319 /* 5320 * Close superfluous windows. 5321 */ 5322 for (wp = lastwin; open_wins > count; ) 5323 { 5324 r = (buf_hide(wp->w_buffer) || !bufIsChanged(wp->w_buffer) 5325 || autowrite(wp->w_buffer, FALSE) == OK); 5326 if (!win_valid(wp)) 5327 { 5328 /* BufWrite Autocommands made the window invalid, start over */ 5329 wp = lastwin; 5330 } 5331 else if (r) 5332 { 5333 win_close(wp, !buf_hide(wp->w_buffer)); 5334 --open_wins; 5335 wp = lastwin; 5336 } 5337 else 5338 { 5339 wp = wp->w_prev; 5340 if (wp == NULL) 5341 break; 5342 } 5343 } 5344 } 5345 5346 5347 static int chk_modeline(linenr_T, int); 5348 5349 /* 5350 * do_modelines() - process mode lines for the current file 5351 * 5352 * "flags" can be: 5353 * OPT_WINONLY only set options local to window 5354 * OPT_NOWIN don't set options local to window 5355 * 5356 * Returns immediately if the "ml" option isn't set. 5357 */ 5358 void 5359 do_modelines(int flags) 5360 { 5361 linenr_T lnum; 5362 int nmlines; 5363 static int entered = 0; 5364 5365 if (!curbuf->b_p_ml || (nmlines = (int)p_mls) == 0) 5366 return; 5367 5368 /* Disallow recursive entry here. Can happen when executing a modeline 5369 * triggers an autocommand, which reloads modelines with a ":do". */ 5370 if (entered) 5371 return; 5372 5373 ++entered; 5374 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count && lnum <= nmlines; 5375 ++lnum) 5376 if (chk_modeline(lnum, flags) == FAIL) 5377 nmlines = 0; 5378 5379 for (lnum = curbuf->b_ml.ml_line_count; lnum > 0 && lnum > nmlines 5380 && lnum > curbuf->b_ml.ml_line_count - nmlines; --lnum) 5381 if (chk_modeline(lnum, flags) == FAIL) 5382 nmlines = 0; 5383 --entered; 5384 } 5385 5386 #include "version.h" /* for version number */ 5387 5388 /* 5389 * chk_modeline() - check a single line for a mode string 5390 * Return FAIL if an error encountered. 5391 */ 5392 static int 5393 chk_modeline( 5394 linenr_T lnum, 5395 int flags) /* Same as for do_modelines(). */ 5396 { 5397 char_u *s; 5398 char_u *e; 5399 char_u *linecopy; /* local copy of any modeline found */ 5400 int prev; 5401 int vers; 5402 int end; 5403 int retval = OK; 5404 char_u *save_sourcing_name; 5405 linenr_T save_sourcing_lnum; 5406 #ifdef FEAT_EVAL 5407 sctx_T save_current_sctx; 5408 #endif 5409 5410 prev = -1; 5411 for (s = ml_get(lnum); *s != NUL; ++s) 5412 { 5413 if (prev == -1 || vim_isspace(prev)) 5414 { 5415 if ((prev != -1 && STRNCMP(s, "ex:", (size_t)3) == 0) 5416 || STRNCMP(s, "vi:", (size_t)3) == 0) 5417 break; 5418 /* Accept both "vim" and "Vim". */ 5419 if ((s[0] == 'v' || s[0] == 'V') && s[1] == 'i' && s[2] == 'm') 5420 { 5421 if (s[3] == '<' || s[3] == '=' || s[3] == '>') 5422 e = s + 4; 5423 else 5424 e = s + 3; 5425 vers = getdigits(&e); 5426 if (*e == ':' 5427 && (s[0] != 'V' 5428 || STRNCMP(skipwhite(e + 1), "set", 3) == 0) 5429 && (s[3] == ':' 5430 || (VIM_VERSION_100 >= vers && isdigit(s[3])) 5431 || (VIM_VERSION_100 < vers && s[3] == '<') 5432 || (VIM_VERSION_100 > vers && s[3] == '>') 5433 || (VIM_VERSION_100 == vers && s[3] == '='))) 5434 break; 5435 } 5436 } 5437 prev = *s; 5438 } 5439 5440 if (*s) 5441 { 5442 do /* skip over "ex:", "vi:" or "vim:" */ 5443 ++s; 5444 while (s[-1] != ':'); 5445 5446 s = linecopy = vim_strsave(s); /* copy the line, it will change */ 5447 if (linecopy == NULL) 5448 return FAIL; 5449 5450 save_sourcing_lnum = sourcing_lnum; 5451 save_sourcing_name = sourcing_name; 5452 sourcing_lnum = lnum; /* prepare for emsg() */ 5453 sourcing_name = (char_u *)"modelines"; 5454 5455 end = FALSE; 5456 while (end == FALSE) 5457 { 5458 s = skipwhite(s); 5459 if (*s == NUL) 5460 break; 5461 5462 /* 5463 * Find end of set command: ':' or end of line. 5464 * Skip over "\:", replacing it with ":". 5465 */ 5466 for (e = s; *e != ':' && *e != NUL; ++e) 5467 if (e[0] == '\\' && e[1] == ':') 5468 STRMOVE(e, e + 1); 5469 if (*e == NUL) 5470 end = TRUE; 5471 5472 /* 5473 * If there is a "set" command, require a terminating ':' and 5474 * ignore the stuff after the ':'. 5475 * "vi:set opt opt opt: foo" -- foo not interpreted 5476 * "vi:opt opt opt: foo" -- foo interpreted 5477 * Accept "se" for compatibility with Elvis. 5478 */ 5479 if (STRNCMP(s, "set ", (size_t)4) == 0 5480 || STRNCMP(s, "se ", (size_t)3) == 0) 5481 { 5482 if (*e != ':') /* no terminating ':'? */ 5483 break; 5484 end = TRUE; 5485 s = vim_strchr(s, ' ') + 1; 5486 } 5487 *e = NUL; /* truncate the set command */ 5488 5489 if (*s != NUL) /* skip over an empty "::" */ 5490 { 5491 int secure_save = secure; 5492 #ifdef FEAT_EVAL 5493 save_current_sctx = current_sctx; 5494 current_sctx.sc_sid = SID_MODELINE; 5495 current_sctx.sc_seq = 0; 5496 current_sctx.sc_lnum = 0; 5497 current_sctx.sc_version = 1; 5498 #endif 5499 // Make sure no risky things are executed as a side effect. 5500 secure = 1; 5501 5502 retval = do_set(s, OPT_MODELINE | OPT_LOCAL | flags); 5503 5504 secure = secure_save; 5505 #ifdef FEAT_EVAL 5506 current_sctx = save_current_sctx; 5507 #endif 5508 if (retval == FAIL) /* stop if error found */ 5509 break; 5510 } 5511 s = e + 1; /* advance to next part */ 5512 } 5513 5514 sourcing_lnum = save_sourcing_lnum; 5515 sourcing_name = save_sourcing_name; 5516 5517 vim_free(linecopy); 5518 } 5519 return retval; 5520 } 5521 5522 #if defined(FEAT_VIMINFO) || defined(PROTO) 5523 int 5524 read_viminfo_bufferlist( 5525 vir_T *virp, 5526 int writing) 5527 { 5528 char_u *tab; 5529 linenr_T lnum; 5530 colnr_T col; 5531 buf_T *buf; 5532 char_u *sfname; 5533 char_u *xline; 5534 5535 /* Handle long line and escaped characters. */ 5536 xline = viminfo_readstring(virp, 1, FALSE); 5537 5538 /* don't read in if there are files on the command-line or if writing: */ 5539 if (xline != NULL && !writing && ARGCOUNT == 0 5540 && find_viminfo_parameter('%') != NULL) 5541 { 5542 /* Format is: <fname> Tab <lnum> Tab <col>. 5543 * Watch out for a Tab in the file name, work from the end. */ 5544 lnum = 0; 5545 col = 0; 5546 tab = vim_strrchr(xline, '\t'); 5547 if (tab != NULL) 5548 { 5549 *tab++ = '\0'; 5550 col = (colnr_T)atoi((char *)tab); 5551 tab = vim_strrchr(xline, '\t'); 5552 if (tab != NULL) 5553 { 5554 *tab++ = '\0'; 5555 lnum = atol((char *)tab); 5556 } 5557 } 5558 5559 /* Expand "~/" in the file name at "line + 1" to a full path. 5560 * Then try shortening it by comparing with the current directory */ 5561 expand_env(xline, NameBuff, MAXPATHL); 5562 sfname = shorten_fname1(NameBuff); 5563 5564 buf = buflist_new(NameBuff, sfname, (linenr_T)0, BLN_LISTED); 5565 if (buf != NULL) /* just in case... */ 5566 { 5567 buf->b_last_cursor.lnum = lnum; 5568 buf->b_last_cursor.col = col; 5569 buflist_setfpos(buf, curwin, lnum, col, FALSE); 5570 } 5571 } 5572 vim_free(xline); 5573 5574 return viminfo_readline(virp); 5575 } 5576 5577 void 5578 write_viminfo_bufferlist(FILE *fp) 5579 { 5580 buf_T *buf; 5581 win_T *win; 5582 tabpage_T *tp; 5583 char_u *line; 5584 int max_buffers; 5585 5586 if (find_viminfo_parameter('%') == NULL) 5587 return; 5588 5589 /* Without a number -1 is returned: do all buffers. */ 5590 max_buffers = get_viminfo_parameter('%'); 5591 5592 /* Allocate room for the file name, lnum and col. */ 5593 #define LINE_BUF_LEN (MAXPATHL + 40) 5594 line = alloc(LINE_BUF_LEN); 5595 if (line == NULL) 5596 return; 5597 5598 FOR_ALL_TAB_WINDOWS(tp, win) 5599 set_last_cursor(win); 5600 5601 fputs(_("\n# Buffer list:\n"), fp); 5602 FOR_ALL_BUFFERS(buf) 5603 { 5604 if (buf->b_fname == NULL 5605 || !buf->b_p_bl 5606 #ifdef FEAT_QUICKFIX 5607 || bt_quickfix(buf) 5608 #endif 5609 #ifdef FEAT_TERMINAL 5610 || bt_terminal(buf) 5611 #endif 5612 || removable(buf->b_ffname)) 5613 continue; 5614 5615 if (max_buffers-- == 0) 5616 break; 5617 putc('%', fp); 5618 home_replace(NULL, buf->b_ffname, line, MAXPATHL, TRUE); 5619 vim_snprintf_add((char *)line, LINE_BUF_LEN, "\t%ld\t%d", 5620 (long)buf->b_last_cursor.lnum, 5621 buf->b_last_cursor.col); 5622 viminfo_writestring(fp, line); 5623 } 5624 vim_free(line); 5625 } 5626 #endif 5627 5628 /* 5629 * Return TRUE if "buf" is a normal buffer, 'buftype' is empty. 5630 */ 5631 int 5632 bt_normal(buf_T *buf) 5633 { 5634 return buf != NULL && buf->b_p_bt[0] == NUL; 5635 } 5636 5637 #if defined(FEAT_QUICKFIX) || defined(PROTO) 5638 /* 5639 * Return TRUE if "buf" is the quickfix buffer. 5640 */ 5641 int 5642 bt_quickfix(buf_T *buf) 5643 { 5644 return buf != NULL && buf->b_p_bt[0] == 'q'; 5645 } 5646 #endif 5647 5648 #if defined(FEAT_TERMINAL) || defined(PROTO) 5649 /* 5650 * Return TRUE if "buf" is a terminal buffer. 5651 */ 5652 int 5653 bt_terminal(buf_T *buf) 5654 { 5655 return buf != NULL && buf->b_p_bt[0] == 't'; 5656 } 5657 #endif 5658 5659 /* 5660 * Return TRUE if "buf" is a help buffer. 5661 */ 5662 int 5663 bt_help(buf_T *buf) 5664 { 5665 return buf != NULL && buf->b_help; 5666 } 5667 5668 /* 5669 * Return TRUE if "buf" is a prompt buffer. 5670 */ 5671 int 5672 bt_prompt(buf_T *buf) 5673 { 5674 return buf != NULL && buf->b_p_bt[0] == 'p'; 5675 } 5676 5677 /* 5678 * Return TRUE if "buf" is a "nofile", "acwrite", "terminal" or "prompt" 5679 * buffer. This means the buffer name is not a file name. 5680 */ 5681 int 5682 bt_nofile(buf_T *buf) 5683 { 5684 return buf != NULL && ((buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f') 5685 || buf->b_p_bt[0] == 'a' 5686 || buf->b_p_bt[0] == 't' 5687 || buf->b_p_bt[0] == 'p'); 5688 } 5689 5690 /* 5691 * Return TRUE if "buf" is a "nowrite", "nofile", "terminal" or "prompt" 5692 * buffer. 5693 */ 5694 int 5695 bt_dontwrite(buf_T *buf) 5696 { 5697 return buf != NULL && (buf->b_p_bt[0] == 'n' 5698 || buf->b_p_bt[0] == 't' 5699 || buf->b_p_bt[0] == 'p'); 5700 } 5701 5702 #if defined(FEAT_QUICKFIX) || defined(PROTO) 5703 int 5704 bt_dontwrite_msg(buf_T *buf) 5705 { 5706 if (bt_dontwrite(buf)) 5707 { 5708 emsg(_("E382: Cannot write, 'buftype' option is set")); 5709 return TRUE; 5710 } 5711 return FALSE; 5712 } 5713 #endif 5714 5715 /* 5716 * Return TRUE if the buffer should be hidden, according to 'hidden', ":hide" 5717 * and 'bufhidden'. 5718 */ 5719 int 5720 buf_hide(buf_T *buf) 5721 { 5722 /* 'bufhidden' overrules 'hidden' and ":hide", check it first */ 5723 switch (buf->b_p_bh[0]) 5724 { 5725 case 'u': /* "unload" */ 5726 case 'w': /* "wipe" */ 5727 case 'd': return FALSE; /* "delete" */ 5728 case 'h': return TRUE; /* "hide" */ 5729 } 5730 return (p_hid || cmdmod.hide); 5731 } 5732 5733 /* 5734 * Return special buffer name. 5735 * Returns NULL when the buffer has a normal file name. 5736 */ 5737 char_u * 5738 buf_spname(buf_T *buf) 5739 { 5740 #if defined(FEAT_QUICKFIX) 5741 if (bt_quickfix(buf)) 5742 { 5743 /* 5744 * Differentiate between the quickfix and location list buffers using 5745 * the buffer number stored in the global quickfix stack. 5746 */ 5747 if (buf->b_fnum == qf_stack_get_bufnr()) 5748 return (char_u *)_(msg_qflist); 5749 else 5750 return (char_u *)_(msg_loclist); 5751 } 5752 #endif 5753 5754 /* There is no _file_ when 'buftype' is "nofile", b_sfname 5755 * contains the name as specified by the user. */ 5756 if (bt_nofile(buf)) 5757 { 5758 #ifdef FEAT_TERMINAL 5759 if (buf->b_term != NULL) 5760 return term_get_status_text(buf->b_term); 5761 #endif 5762 if (buf->b_fname != NULL) 5763 return buf->b_fname; 5764 #ifdef FEAT_JOB_CHANNEL 5765 if (bt_prompt(buf)) 5766 return (char_u *)_("[Prompt]"); 5767 #endif 5768 return (char_u *)_("[Scratch]"); 5769 } 5770 5771 if (buf->b_fname == NULL) 5772 return (char_u *)_("[No Name]"); 5773 return NULL; 5774 } 5775 5776 #if defined(FEAT_JOB_CHANNEL) \ 5777 || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 5778 || defined(PROTO) 5779 # define SWITCH_TO_WIN 5780 5781 /* 5782 * Find a window that contains "buf" and switch to it. 5783 * If there is no such window, use the current window and change "curbuf". 5784 * Caller must initialize save_curbuf to NULL. 5785 * restore_win_for_buf() MUST be called later! 5786 */ 5787 void 5788 switch_to_win_for_buf( 5789 buf_T *buf, 5790 win_T **save_curwinp, 5791 tabpage_T **save_curtabp, 5792 bufref_T *save_curbuf) 5793 { 5794 win_T *wp; 5795 tabpage_T *tp; 5796 5797 if (find_win_for_buf(buf, &wp, &tp) == FAIL) 5798 switch_buffer(save_curbuf, buf); 5799 else if (switch_win(save_curwinp, save_curtabp, wp, tp, TRUE) == FAIL) 5800 { 5801 restore_win(*save_curwinp, *save_curtabp, TRUE); 5802 switch_buffer(save_curbuf, buf); 5803 } 5804 } 5805 5806 void 5807 restore_win_for_buf( 5808 win_T *save_curwin, 5809 tabpage_T *save_curtab, 5810 bufref_T *save_curbuf) 5811 { 5812 if (save_curbuf->br_buf == NULL) 5813 restore_win(save_curwin, save_curtab, TRUE); 5814 else 5815 restore_buffer(save_curbuf); 5816 } 5817 #endif 5818 5819 #if defined(FEAT_QUICKFIX) || defined(SWITCH_TO_WIN) || defined(PROTO) 5820 /* 5821 * Find a window for buffer "buf". 5822 * If found OK is returned and "wp" and "tp" are set to the window and tabpage. 5823 * If not found FAIL is returned. 5824 */ 5825 int 5826 find_win_for_buf( 5827 buf_T *buf, 5828 win_T **wp, 5829 tabpage_T **tp) 5830 { 5831 FOR_ALL_TAB_WINDOWS(*tp, *wp) 5832 if ((*wp)->w_buffer == buf) 5833 goto win_found; 5834 return FAIL; 5835 win_found: 5836 return OK; 5837 } 5838 #endif 5839 5840 /* 5841 * Set 'buflisted' for curbuf to "on" and trigger autocommands if it changed. 5842 */ 5843 void 5844 set_buflisted(int on) 5845 { 5846 if (on != curbuf->b_p_bl) 5847 { 5848 curbuf->b_p_bl = on; 5849 if (on) 5850 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, curbuf); 5851 else 5852 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 5853 } 5854 } 5855 5856 /* 5857 * Read the file for "buf" again and check if the contents changed. 5858 * Return TRUE if it changed or this could not be checked. 5859 */ 5860 int 5861 buf_contents_changed(buf_T *buf) 5862 { 5863 buf_T *newbuf; 5864 int differ = TRUE; 5865 linenr_T lnum; 5866 aco_save_T aco; 5867 exarg_T ea; 5868 5869 /* Allocate a buffer without putting it in the buffer list. */ 5870 newbuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY); 5871 if (newbuf == NULL) 5872 return TRUE; 5873 5874 /* Force the 'fileencoding' and 'fileformat' to be equal. */ 5875 if (prep_exarg(&ea, buf) == FAIL) 5876 { 5877 wipe_buffer(newbuf, FALSE); 5878 return TRUE; 5879 } 5880 5881 /* set curwin/curbuf to buf and save a few things */ 5882 aucmd_prepbuf(&aco, newbuf); 5883 5884 if (ml_open(curbuf) == OK 5885 && readfile(buf->b_ffname, buf->b_fname, 5886 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, 5887 &ea, READ_NEW | READ_DUMMY) == OK) 5888 { 5889 /* compare the two files line by line */ 5890 if (buf->b_ml.ml_line_count == curbuf->b_ml.ml_line_count) 5891 { 5892 differ = FALSE; 5893 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) 5894 if (STRCMP(ml_get_buf(buf, lnum, FALSE), ml_get(lnum)) != 0) 5895 { 5896 differ = TRUE; 5897 break; 5898 } 5899 } 5900 } 5901 vim_free(ea.cmd); 5902 5903 /* restore curwin/curbuf and a few other things */ 5904 aucmd_restbuf(&aco); 5905 5906 if (curbuf != newbuf) /* safety check */ 5907 wipe_buffer(newbuf, FALSE); 5908 5909 return differ; 5910 } 5911 5912 /* 5913 * Wipe out a buffer and decrement the last buffer number if it was used for 5914 * this buffer. Call this to wipe out a temp buffer that does not contain any 5915 * marks. 5916 */ 5917 void 5918 wipe_buffer( 5919 buf_T *buf, 5920 int aucmd UNUSED) /* When TRUE trigger autocommands. */ 5921 { 5922 if (buf->b_fnum == top_file_num - 1) 5923 --top_file_num; 5924 5925 if (!aucmd) /* Don't trigger BufDelete autocommands here. */ 5926 block_autocmds(); 5927 5928 close_buffer(NULL, buf, DOBUF_WIPE, FALSE); 5929 5930 if (!aucmd) 5931 unblock_autocmds(); 5932 } 5933