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 /* 64 * Read data from buffer for retrying. 65 */ 66 static int 67 read_buffer( 68 int read_stdin, /* read file from stdin, otherwise fifo */ 69 exarg_T *eap, /* for forced 'ff' and 'fenc' or NULL */ 70 int flags) /* extra flags for readfile() */ 71 { 72 int retval = OK; 73 linenr_T line_count; 74 75 /* 76 * Read from the buffer which the text is already filled in and append at 77 * the end. This makes it possible to retry when 'fileformat' or 78 * 'fileencoding' was guessed wrong. 79 */ 80 line_count = curbuf->b_ml.ml_line_count; 81 retval = readfile( 82 read_stdin ? NULL : curbuf->b_ffname, 83 read_stdin ? NULL : curbuf->b_fname, 84 (linenr_T)line_count, (linenr_T)0, (linenr_T)MAXLNUM, eap, 85 flags | READ_BUFFER); 86 if (retval == OK) 87 { 88 /* Delete the binary lines. */ 89 while (--line_count >= 0) 90 ml_delete((linenr_T)1, FALSE); 91 } 92 else 93 { 94 /* Delete the converted lines. */ 95 while (curbuf->b_ml.ml_line_count > line_count) 96 ml_delete(line_count, FALSE); 97 } 98 /* Put the cursor on the first line. */ 99 curwin->w_cursor.lnum = 1; 100 curwin->w_cursor.col = 0; 101 102 if (read_stdin) 103 { 104 /* Set or reset 'modified' before executing autocommands, so that 105 * it can be changed there. */ 106 if (!readonlymode && !BUFEMPTY()) 107 changed(); 108 else if (retval == OK) 109 unchanged(curbuf, FALSE, TRUE); 110 111 if (retval == OK) 112 { 113 #ifdef FEAT_EVAL 114 apply_autocmds_retval(EVENT_STDINREADPOST, NULL, NULL, FALSE, 115 curbuf, &retval); 116 #else 117 apply_autocmds(EVENT_STDINREADPOST, NULL, NULL, FALSE, curbuf); 118 #endif 119 } 120 } 121 return retval; 122 } 123 124 /* 125 * Ensure buffer "buf" is loaded. Does not trigger the swap-exists action. 126 */ 127 void 128 buffer_ensure_loaded(buf_T *buf) 129 { 130 if (buf->b_ml.ml_mfp == NULL) 131 { 132 aco_save_T aco; 133 134 aucmd_prepbuf(&aco, buf); 135 swap_exists_action = SEA_NONE; 136 open_buffer(FALSE, NULL, 0); 137 aucmd_restbuf(&aco); 138 } 139 } 140 141 /* 142 * Open current buffer, that is: open the memfile and read the file into 143 * memory. 144 * Return FAIL for failure, OK otherwise. 145 */ 146 int 147 open_buffer( 148 int read_stdin, /* read file from stdin */ 149 exarg_T *eap, /* for forced 'ff' and 'fenc' or NULL */ 150 int flags) /* extra flags for readfile() */ 151 { 152 int retval = OK; 153 bufref_T old_curbuf; 154 #ifdef FEAT_SYN_HL 155 long old_tw = curbuf->b_p_tw; 156 #endif 157 int read_fifo = FALSE; 158 159 /* 160 * The 'readonly' flag is only set when BF_NEVERLOADED is being reset. 161 * When re-entering the same buffer, it should not change, because the 162 * user may have reset the flag by hand. 163 */ 164 if (readonlymode && curbuf->b_ffname != NULL 165 && (curbuf->b_flags & BF_NEVERLOADED)) 166 curbuf->b_p_ro = TRUE; 167 168 if (ml_open(curbuf) == FAIL) 169 { 170 /* 171 * There MUST be a memfile, otherwise we can't do anything 172 * If we can't create one for the current buffer, take another buffer 173 */ 174 close_buffer(NULL, curbuf, 0, FALSE); 175 FOR_ALL_BUFFERS(curbuf) 176 if (curbuf->b_ml.ml_mfp != NULL) 177 break; 178 /* 179 * if there is no memfile at all, exit 180 * This is OK, since there are no changes to lose. 181 */ 182 if (curbuf == NULL) 183 { 184 emsg(_("E82: Cannot allocate any buffer, exiting...")); 185 getout(2); 186 } 187 emsg(_("E83: Cannot allocate buffer, using other one...")); 188 enter_buffer(curbuf); 189 #ifdef FEAT_SYN_HL 190 if (old_tw != curbuf->b_p_tw) 191 check_colorcolumn(curwin); 192 #endif 193 return FAIL; 194 } 195 196 /* The autocommands in readfile() may change the buffer, but only AFTER 197 * reading the file. */ 198 set_bufref(&old_curbuf, curbuf); 199 modified_was_set = FALSE; 200 201 /* mark cursor position as being invalid */ 202 curwin->w_valid = 0; 203 204 if (curbuf->b_ffname != NULL 205 #ifdef FEAT_NETBEANS_INTG 206 && netbeansReadFile 207 #endif 208 ) 209 { 210 int old_msg_silent = msg_silent; 211 #ifdef UNIX 212 int save_bin = curbuf->b_p_bin; 213 int perm; 214 #endif 215 #ifdef FEAT_NETBEANS_INTG 216 int oldFire = netbeansFireChanges; 217 218 netbeansFireChanges = 0; 219 #endif 220 #ifdef UNIX 221 perm = mch_getperm(curbuf->b_ffname); 222 if (perm >= 0 && (S_ISFIFO(perm) 223 || S_ISSOCK(perm) 224 # ifdef OPEN_CHR_FILES 225 || (S_ISCHR(perm) && is_dev_fd_file(curbuf->b_ffname)) 226 # endif 227 )) 228 read_fifo = TRUE; 229 if (read_fifo) 230 curbuf->b_p_bin = TRUE; 231 #endif 232 if (shortmess(SHM_FILEINFO)) 233 msg_silent = 1; 234 retval = readfile(curbuf->b_ffname, curbuf->b_fname, 235 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap, 236 flags | READ_NEW | (read_fifo ? READ_FIFO : 0)); 237 #ifdef UNIX 238 if (read_fifo) 239 { 240 curbuf->b_p_bin = save_bin; 241 if (retval == OK) 242 retval = read_buffer(FALSE, eap, flags); 243 } 244 #endif 245 msg_silent = old_msg_silent; 246 #ifdef FEAT_NETBEANS_INTG 247 netbeansFireChanges = oldFire; 248 #endif 249 /* Help buffer is filtered. */ 250 if (bt_help(curbuf)) 251 fix_help_buffer(); 252 } 253 else if (read_stdin) 254 { 255 int save_bin = curbuf->b_p_bin; 256 257 /* 258 * First read the text in binary mode into the buffer. 259 * Then read from that same buffer and append at the end. This makes 260 * it possible to retry when 'fileformat' or 'fileencoding' was 261 * guessed wrong. 262 */ 263 curbuf->b_p_bin = TRUE; 264 retval = readfile(NULL, NULL, (linenr_T)0, 265 (linenr_T)0, (linenr_T)MAXLNUM, NULL, 266 flags | (READ_NEW + READ_STDIN)); 267 curbuf->b_p_bin = save_bin; 268 if (retval == OK) 269 retval = read_buffer(TRUE, eap, flags); 270 } 271 272 /* if first time loading this buffer, init b_chartab[] */ 273 if (curbuf->b_flags & BF_NEVERLOADED) 274 { 275 (void)buf_init_chartab(curbuf, FALSE); 276 #ifdef FEAT_CINDENT 277 parse_cino(curbuf); 278 #endif 279 } 280 281 /* 282 * Set/reset the Changed flag first, autocmds may change the buffer. 283 * Apply the automatic commands, before processing the modelines. 284 * So the modelines have priority over autocommands. 285 */ 286 /* When reading stdin, the buffer contents always needs writing, so set 287 * the changed flag. Unless in readonly mode: "ls | gview -". 288 * When interrupted and 'cpoptions' contains 'i' set changed flag. */ 289 if ((got_int && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 290 || modified_was_set /* ":set modified" used in autocmd */ 291 #ifdef FEAT_EVAL 292 || (aborting() && vim_strchr(p_cpo, CPO_INTMOD) != NULL) 293 #endif 294 ) 295 changed(); 296 else if (retval == OK && !read_stdin && !read_fifo) 297 unchanged(curbuf, FALSE, TRUE); 298 save_file_ff(curbuf); /* keep this fileformat */ 299 300 /* Set last_changedtick to avoid triggering a TextChanged autocommand right 301 * after it was added. */ 302 curbuf->b_last_changedtick = CHANGEDTICK(curbuf); 303 #ifdef FEAT_INS_EXPAND 304 curbuf->b_last_changedtick_pum = CHANGEDTICK(curbuf); 305 #endif 306 307 /* require "!" to overwrite the file, because it wasn't read completely */ 308 #ifdef FEAT_EVAL 309 if (aborting()) 310 #else 311 if (got_int) 312 #endif 313 curbuf->b_flags |= BF_READERR; 314 315 #ifdef FEAT_FOLDING 316 /* Need to update automatic folding. Do this before the autocommands, 317 * they may use the fold info. */ 318 foldUpdateAll(curwin); 319 #endif 320 321 /* need to set w_topline, unless some autocommand already did that. */ 322 if (!(curwin->w_valid & VALID_TOPLINE)) 323 { 324 curwin->w_topline = 1; 325 #ifdef FEAT_DIFF 326 curwin->w_topfill = 0; 327 #endif 328 } 329 #ifdef FEAT_EVAL 330 apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, &retval); 331 #else 332 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 333 #endif 334 335 if (retval == OK) 336 { 337 /* 338 * The autocommands may have changed the current buffer. Apply the 339 * modelines to the correct buffer, if it still exists and is loaded. 340 */ 341 if (bufref_valid(&old_curbuf) && old_curbuf.br_buf->b_ml.ml_mfp != NULL) 342 { 343 aco_save_T aco; 344 345 /* Go to the buffer that was opened. */ 346 aucmd_prepbuf(&aco, old_curbuf.br_buf); 347 do_modelines(0); 348 curbuf->b_flags &= ~(BF_CHECK_RO | BF_NEVERLOADED); 349 350 #ifdef FEAT_EVAL 351 apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf, 352 &retval); 353 #else 354 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 355 #endif 356 357 /* restore curwin/curbuf and a few other things */ 358 aucmd_restbuf(&aco); 359 } 360 } 361 362 return retval; 363 } 364 365 /* 366 * Store "buf" in "bufref" and set the free count. 367 */ 368 void 369 set_bufref(bufref_T *bufref, buf_T *buf) 370 { 371 bufref->br_buf = buf; 372 bufref->br_fnum = buf == NULL ? 0 : buf->b_fnum; 373 bufref->br_buf_free_count = buf_free_count; 374 } 375 376 /* 377 * Return TRUE if "bufref->br_buf" points to the same buffer as when 378 * set_bufref() was called and it is a valid buffer. 379 * Only goes through the buffer list if buf_free_count changed. 380 * Also checks if b_fnum is still the same, a :bwipe followed by :new might get 381 * the same allocated memory, but it's a different buffer. 382 */ 383 int 384 bufref_valid(bufref_T *bufref) 385 { 386 return bufref->br_buf_free_count == buf_free_count 387 ? TRUE : buf_valid(bufref->br_buf) 388 && bufref->br_fnum == bufref->br_buf->b_fnum; 389 } 390 391 /* 392 * Return TRUE if "buf" points to a valid buffer (in the buffer list). 393 * This can be slow if there are many buffers, prefer using bufref_valid(). 394 */ 395 int 396 buf_valid(buf_T *buf) 397 { 398 buf_T *bp; 399 400 /* Assume that we more often have a recent buffer, start with the last 401 * one. */ 402 for (bp = lastbuf; bp != NULL; bp = bp->b_prev) 403 if (bp == buf) 404 return TRUE; 405 return FALSE; 406 } 407 408 /* 409 * A hash table used to quickly lookup a buffer by its number. 410 */ 411 static hashtab_T buf_hashtab; 412 413 static void 414 buf_hashtab_add(buf_T *buf) 415 { 416 sprintf((char *)buf->b_key, "%x", buf->b_fnum); 417 if (hash_add(&buf_hashtab, buf->b_key) == FAIL) 418 emsg(_("E931: Buffer cannot be registered")); 419 } 420 421 static void 422 buf_hashtab_remove(buf_T *buf) 423 { 424 hashitem_T *hi = hash_find(&buf_hashtab, buf->b_key); 425 426 if (!HASHITEM_EMPTY(hi)) 427 hash_remove(&buf_hashtab, hi); 428 } 429 430 /* 431 * Return TRUE when buffer "buf" can be unloaded. 432 * Give an error message and return FALSE when the buffer is locked or the 433 * screen is being redrawn and the buffer is in a window. 434 */ 435 static int 436 can_unload_buffer(buf_T *buf) 437 { 438 int can_unload = !buf->b_locked; 439 440 if (can_unload && updating_screen) 441 { 442 win_T *wp; 443 444 FOR_ALL_WINDOWS(wp) 445 if (wp->w_buffer == buf) 446 { 447 can_unload = FALSE; 448 break; 449 } 450 } 451 if (!can_unload) 452 emsg(_("E937: Attempt to delete a buffer that is in use")); 453 return can_unload; 454 } 455 456 /* 457 * Close the link to a buffer. 458 * "action" is used when there is no longer a window for the buffer. 459 * It can be: 460 * 0 buffer becomes hidden 461 * DOBUF_UNLOAD buffer is unloaded 462 * DOBUF_DELETE buffer is unloaded and removed from buffer list 463 * DOBUF_WIPE buffer is unloaded and really deleted 464 * When doing all but the first one on the current buffer, the caller should 465 * get a new buffer very soon! 466 * 467 * The 'bufhidden' option can force freeing and deleting. 468 * 469 * When "abort_if_last" is TRUE then do not close the buffer if autocommands 470 * cause there to be only one window with this buffer. e.g. when ":quit" is 471 * supposed to close the window but autocommands close all other windows. 472 */ 473 void 474 close_buffer( 475 win_T *win, /* if not NULL, set b_last_cursor */ 476 buf_T *buf, 477 int action, 478 int abort_if_last) 479 { 480 int is_curbuf; 481 int nwindows; 482 bufref_T bufref; 483 int is_curwin = (curwin != NULL && curwin->w_buffer == buf); 484 win_T *the_curwin = curwin; 485 tabpage_T *the_curtab = curtab; 486 int unload_buf = (action != 0); 487 int del_buf = (action == DOBUF_DEL || action == DOBUF_WIPE); 488 int wipe_buf = (action == DOBUF_WIPE); 489 490 /* 491 * Force unloading or deleting when 'bufhidden' says so. 492 * The caller must take care of NOT deleting/freeing when 'bufhidden' is 493 * "hide" (otherwise we could never free or delete a buffer). 494 */ 495 if (buf->b_p_bh[0] == 'd') /* 'bufhidden' == "delete" */ 496 { 497 del_buf = TRUE; 498 unload_buf = TRUE; 499 } 500 else if (buf->b_p_bh[0] == 'w') /* 'bufhidden' == "wipe" */ 501 { 502 del_buf = TRUE; 503 unload_buf = TRUE; 504 wipe_buf = TRUE; 505 } 506 else if (buf->b_p_bh[0] == 'u') /* 'bufhidden' == "unload" */ 507 unload_buf = TRUE; 508 509 #ifdef FEAT_TERMINAL 510 if (bt_terminal(buf) && (buf->b_nwindows == 1 || del_buf)) 511 { 512 if (term_job_running(buf->b_term)) 513 { 514 if (wipe_buf || unload_buf) 515 { 516 if (!can_unload_buffer(buf)) 517 return; 518 519 /* Wiping out or unloading a terminal buffer kills the job. */ 520 free_terminal(buf); 521 } 522 else 523 { 524 /* The job keeps running, hide the buffer. */ 525 del_buf = FALSE; 526 unload_buf = FALSE; 527 } 528 } 529 else 530 { 531 /* A terminal buffer is wiped out if the job has finished. */ 532 del_buf = TRUE; 533 unload_buf = TRUE; 534 wipe_buf = TRUE; 535 } 536 } 537 #endif 538 539 /* Disallow deleting the buffer when it is locked (already being closed or 540 * halfway a command that relies on it). Unloading is allowed. */ 541 if ((del_buf || wipe_buf) && !can_unload_buffer(buf)) 542 return; 543 544 /* check no autocommands closed the window */ 545 if (win != NULL && win_valid_any_tab(win)) 546 { 547 /* Set b_last_cursor when closing the last window for the buffer. 548 * Remember the last cursor position and window options of the buffer. 549 * This used to be only for the current window, but then options like 550 * 'foldmethod' may be lost with a ":only" command. */ 551 if (buf->b_nwindows == 1) 552 set_last_cursor(win); 553 buflist_setfpos(buf, win, 554 win->w_cursor.lnum == 1 ? 0 : win->w_cursor.lnum, 555 win->w_cursor.col, TRUE); 556 } 557 558 set_bufref(&bufref, buf); 559 560 /* When the buffer is no longer in a window, trigger BufWinLeave */ 561 if (buf->b_nwindows == 1) 562 { 563 ++buf->b_locked; 564 if (apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname, 565 FALSE, buf) 566 && !bufref_valid(&bufref)) 567 { 568 /* Autocommands deleted the buffer. */ 569 aucmd_abort: 570 emsg(_(e_auabort)); 571 return; 572 } 573 --buf->b_locked; 574 if (abort_if_last && one_window()) 575 /* Autocommands made this the only window. */ 576 goto aucmd_abort; 577 578 /* When the buffer becomes hidden, but is not unloaded, trigger 579 * BufHidden */ 580 if (!unload_buf) 581 { 582 ++buf->b_locked; 583 if (apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname, 584 FALSE, buf) 585 && !bufref_valid(&bufref)) 586 /* Autocommands deleted the buffer. */ 587 goto aucmd_abort; 588 --buf->b_locked; 589 if (abort_if_last && one_window()) 590 /* Autocommands made this the only window. */ 591 goto aucmd_abort; 592 } 593 #ifdef FEAT_EVAL 594 if (aborting()) /* autocmds may abort script processing */ 595 return; 596 #endif 597 } 598 599 /* If the buffer was in curwin and the window has changed, go back to that 600 * window, if it still exists. This avoids that ":edit x" triggering a 601 * "tabnext" BufUnload autocmd leaves a window behind without a buffer. */ 602 if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin)) 603 { 604 block_autocmds(); 605 goto_tabpage_win(the_curtab, the_curwin); 606 unblock_autocmds(); 607 } 608 609 nwindows = buf->b_nwindows; 610 611 /* decrease the link count from windows (unless not in any window) */ 612 if (buf->b_nwindows > 0) 613 --buf->b_nwindows; 614 615 #ifdef FEAT_DIFF 616 if (diffopt_hiddenoff() && !unload_buf && buf->b_nwindows == 0) 617 diff_buf_delete(buf); /* Clear 'diff' for hidden buffer. */ 618 #endif 619 620 /* Return when a window is displaying the buffer or when it's not 621 * unloaded. */ 622 if (buf->b_nwindows > 0 || !unload_buf) 623 return; 624 625 /* Always remove the buffer when there is no file name. */ 626 if (buf->b_ffname == NULL) 627 del_buf = TRUE; 628 629 /* When closing the current buffer stop Visual mode before freeing 630 * anything. */ 631 if (buf == curbuf && VIsual_active 632 #if defined(EXITFREE) 633 && !entered_free_all_mem 634 #endif 635 ) 636 end_visual_mode(); 637 638 /* 639 * Free all things allocated for this buffer. 640 * Also calls the "BufDelete" autocommands when del_buf is TRUE. 641 */ 642 /* Remember if we are closing the current buffer. Restore the number of 643 * windows, so that autocommands in buf_freeall() don't get confused. */ 644 is_curbuf = (buf == curbuf); 645 buf->b_nwindows = nwindows; 646 647 buf_freeall(buf, (del_buf ? BFA_DEL : 0) + (wipe_buf ? BFA_WIPE : 0)); 648 649 /* Autocommands may have deleted the buffer. */ 650 if (!bufref_valid(&bufref)) 651 return; 652 #ifdef FEAT_EVAL 653 if (aborting()) /* autocmds may abort script processing */ 654 return; 655 #endif 656 657 /* 658 * It's possible that autocommands change curbuf to the one being deleted. 659 * This might cause the previous curbuf to be deleted unexpectedly. But 660 * in some cases it's OK to delete the curbuf, because a new one is 661 * obtained anyway. Therefore only return if curbuf changed to the 662 * deleted buffer. 663 */ 664 if (buf == curbuf && !is_curbuf) 665 return; 666 667 if (win_valid_any_tab(win) && win->w_buffer == buf) 668 win->w_buffer = NULL; /* make sure we don't use the buffer now */ 669 670 /* Autocommands may have opened or closed windows for this buffer. 671 * Decrement the count for the close we do here. */ 672 if (buf->b_nwindows > 0) 673 --buf->b_nwindows; 674 675 /* 676 * Remove the buffer from the list. 677 */ 678 if (wipe_buf) 679 { 680 if (buf->b_sfname != buf->b_ffname) 681 VIM_CLEAR(buf->b_sfname); 682 else 683 buf->b_sfname = NULL; 684 VIM_CLEAR(buf->b_ffname); 685 if (buf->b_prev == NULL) 686 firstbuf = buf->b_next; 687 else 688 buf->b_prev->b_next = buf->b_next; 689 if (buf->b_next == NULL) 690 lastbuf = buf->b_prev; 691 else 692 buf->b_next->b_prev = buf->b_prev; 693 free_buffer(buf); 694 } 695 else 696 { 697 if (del_buf) 698 { 699 /* Free all internal variables and reset option values, to make 700 * ":bdel" compatible with Vim 5.7. */ 701 free_buffer_stuff(buf, TRUE); 702 703 /* Make it look like a new buffer. */ 704 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 705 706 /* Init the options when loaded again. */ 707 buf->b_p_initialized = FALSE; 708 } 709 buf_clear_file(buf); 710 if (del_buf) 711 buf->b_p_bl = FALSE; 712 } 713 } 714 715 /* 716 * Make buffer not contain a file. 717 */ 718 void 719 buf_clear_file(buf_T *buf) 720 { 721 buf->b_ml.ml_line_count = 1; 722 unchanged(buf, TRUE, TRUE); 723 buf->b_shortname = FALSE; 724 buf->b_p_eol = TRUE; 725 buf->b_start_eol = TRUE; 726 buf->b_p_bomb = FALSE; 727 buf->b_start_bomb = FALSE; 728 buf->b_ml.ml_mfp = NULL; 729 buf->b_ml.ml_flags = ML_EMPTY; /* empty buffer */ 730 #ifdef FEAT_NETBEANS_INTG 731 netbeans_deleted_all_lines(buf); 732 #endif 733 } 734 735 /* 736 * buf_freeall() - free all things allocated for a buffer that are related to 737 * the file. Careful: get here with "curwin" NULL when exiting. 738 * flags: 739 * BFA_DEL buffer is going to be deleted 740 * BFA_WIPE buffer is going to be wiped out 741 * BFA_KEEP_UNDO do not free undo information 742 */ 743 void 744 buf_freeall(buf_T *buf, int flags) 745 { 746 int is_curbuf = (buf == curbuf); 747 bufref_T bufref; 748 int is_curwin = (curwin != NULL && curwin->w_buffer == buf); 749 win_T *the_curwin = curwin; 750 tabpage_T *the_curtab = curtab; 751 752 /* Make sure the buffer isn't closed by autocommands. */ 753 ++buf->b_locked; 754 set_bufref(&bufref, buf); 755 if (buf->b_ml.ml_mfp != NULL) 756 { 757 if (apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, 758 FALSE, buf) 759 && !bufref_valid(&bufref)) 760 /* autocommands deleted the buffer */ 761 return; 762 } 763 if ((flags & BFA_DEL) && buf->b_p_bl) 764 { 765 if (apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname, 766 FALSE, buf) 767 && !bufref_valid(&bufref)) 768 /* autocommands deleted the buffer */ 769 return; 770 } 771 if (flags & BFA_WIPE) 772 { 773 if (apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname, 774 FALSE, buf) 775 && !bufref_valid(&bufref)) 776 /* autocommands deleted the buffer */ 777 return; 778 } 779 --buf->b_locked; 780 781 /* If the buffer was in curwin and the window has changed, go back to that 782 * window, if it still exists. This avoids that ":edit x" triggering a 783 * "tabnext" BufUnload autocmd leaves a window behind without a buffer. */ 784 if (is_curwin && curwin != the_curwin && win_valid_any_tab(the_curwin)) 785 { 786 block_autocmds(); 787 goto_tabpage_win(the_curtab, the_curwin); 788 unblock_autocmds(); 789 } 790 791 #ifdef FEAT_EVAL 792 if (aborting()) /* autocmds may abort script processing */ 793 return; 794 #endif 795 796 /* 797 * It's possible that autocommands change curbuf to the one being deleted. 798 * This might cause curbuf to be deleted unexpectedly. But in some cases 799 * it's OK to delete the curbuf, because a new one is obtained anyway. 800 * Therefore only return if curbuf changed to the deleted buffer. 801 */ 802 if (buf == curbuf && !is_curbuf) 803 return; 804 #ifdef FEAT_DIFF 805 diff_buf_delete(buf); /* Can't use 'diff' for unloaded buffer. */ 806 #endif 807 #ifdef FEAT_SYN_HL 808 /* Remove any ownsyntax, unless exiting. */ 809 if (curwin != NULL && curwin->w_buffer == buf) 810 reset_synblock(curwin); 811 #endif 812 813 #ifdef FEAT_FOLDING 814 /* No folds in an empty buffer. */ 815 { 816 win_T *win; 817 tabpage_T *tp; 818 819 FOR_ALL_TAB_WINDOWS(tp, win) 820 if (win->w_buffer == buf) 821 clearFolding(win); 822 } 823 #endif 824 825 #ifdef FEAT_TCL 826 tcl_buffer_free(buf); 827 #endif 828 ml_close(buf, TRUE); /* close and delete the memline/memfile */ 829 buf->b_ml.ml_line_count = 0; /* no lines in buffer */ 830 if ((flags & BFA_KEEP_UNDO) == 0) 831 { 832 u_blockfree(buf); /* free the memory allocated for undo */ 833 u_clearall(buf); /* reset all undo information */ 834 } 835 #ifdef FEAT_SYN_HL 836 syntax_clear(&buf->b_s); /* reset syntax info */ 837 #endif 838 #ifdef FEAT_TEXT_PROP 839 clear_buf_prop_types(buf); 840 #endif 841 buf->b_flags &= ~BF_READERR; /* a read error is no longer relevant */ 842 } 843 844 /* 845 * Free a buffer structure and the things it contains related to the buffer 846 * itself (not the file, that must have been done already). 847 */ 848 static void 849 free_buffer(buf_T *buf) 850 { 851 ++buf_free_count; 852 free_buffer_stuff(buf, TRUE); 853 #ifdef FEAT_EVAL 854 /* b:changedtick uses an item in buf_T, remove it now */ 855 dictitem_remove(buf->b_vars, (dictitem_T *)&buf->b_ct_di); 856 unref_var_dict(buf->b_vars); 857 #endif 858 #ifdef FEAT_LUA 859 lua_buffer_free(buf); 860 #endif 861 #ifdef FEAT_MZSCHEME 862 mzscheme_buffer_free(buf); 863 #endif 864 #ifdef FEAT_PERL 865 perl_buf_free(buf); 866 #endif 867 #ifdef FEAT_PYTHON 868 python_buffer_free(buf); 869 #endif 870 #ifdef FEAT_PYTHON3 871 python3_buffer_free(buf); 872 #endif 873 #ifdef FEAT_RUBY 874 ruby_buffer_free(buf); 875 #endif 876 #ifdef FEAT_JOB_CHANNEL 877 channel_buffer_free(buf); 878 #endif 879 #ifdef FEAT_TERMINAL 880 free_terminal(buf); 881 #endif 882 #ifdef FEAT_JOB_CHANNEL 883 vim_free(buf->b_prompt_text); 884 free_callback(&buf->b_prompt_callback); 885 #endif 886 887 buf_hashtab_remove(buf); 888 889 aubuflocal_remove(buf); 890 891 if (autocmd_busy) 892 { 893 /* Do not free the buffer structure while autocommands are executing, 894 * it's still needed. Free it when autocmd_busy is reset. */ 895 buf->b_next = au_pending_free_buf; 896 au_pending_free_buf = buf; 897 } 898 else 899 vim_free(buf); 900 } 901 902 /* 903 * Initializes b:changedtick. 904 */ 905 static void 906 init_changedtick(buf_T *buf) 907 { 908 dictitem_T *di = (dictitem_T *)&buf->b_ct_di; 909 910 di->di_flags = DI_FLAGS_FIX | DI_FLAGS_RO; 911 di->di_tv.v_type = VAR_NUMBER; 912 di->di_tv.v_lock = VAR_FIXED; 913 di->di_tv.vval.v_number = 0; 914 915 #ifdef FEAT_EVAL 916 STRCPY(buf->b_ct_di.di_key, "changedtick"); 917 (void)dict_add(buf->b_vars, di); 918 #endif 919 } 920 921 /* 922 * Free stuff in the buffer for ":bdel" and when wiping out the buffer. 923 */ 924 static void 925 free_buffer_stuff( 926 buf_T *buf, 927 int free_options) /* free options as well */ 928 { 929 if (free_options) 930 { 931 clear_wininfo(buf); /* including window-local options */ 932 free_buf_options(buf, TRUE); 933 #ifdef FEAT_SPELL 934 ga_clear(&buf->b_s.b_langp); 935 #endif 936 } 937 #ifdef FEAT_EVAL 938 { 939 varnumber_T tick = CHANGEDTICK(buf); 940 941 vars_clear(&buf->b_vars->dv_hashtab); /* free all buffer variables */ 942 hash_init(&buf->b_vars->dv_hashtab); 943 init_changedtick(buf); 944 CHANGEDTICK(buf) = tick; 945 } 946 #endif 947 uc_clear(&buf->b_ucmds); // clear local user commands 948 #ifdef FEAT_SIGNS 949 buf_delete_signs(buf, (char_u *)"*"); // delete any signs 950 #endif 951 #ifdef FEAT_NETBEANS_INTG 952 netbeans_file_killed(buf); 953 #endif 954 #ifdef FEAT_LOCALMAP 955 map_clear_int(buf, MAP_ALL_MODES, TRUE, FALSE); /* clear local mappings */ 956 map_clear_int(buf, MAP_ALL_MODES, TRUE, TRUE); /* clear local abbrevs */ 957 #endif 958 VIM_CLEAR(buf->b_start_fenc); 959 } 960 961 /* 962 * Free the b_wininfo list for buffer "buf". 963 */ 964 static void 965 clear_wininfo(buf_T *buf) 966 { 967 wininfo_T *wip; 968 969 while (buf->b_wininfo != NULL) 970 { 971 wip = buf->b_wininfo; 972 buf->b_wininfo = wip->wi_next; 973 if (wip->wi_optset) 974 { 975 clear_winopt(&wip->wi_opt); 976 #ifdef FEAT_FOLDING 977 deleteFoldRecurse(&wip->wi_folds); 978 #endif 979 } 980 vim_free(wip); 981 } 982 } 983 984 /* 985 * Go to another buffer. Handles the result of the ATTENTION dialog. 986 */ 987 void 988 goto_buffer( 989 exarg_T *eap, 990 int start, 991 int dir, 992 int count) 993 { 994 bufref_T old_curbuf; 995 996 set_bufref(&old_curbuf, curbuf); 997 998 swap_exists_action = SEA_DIALOG; 999 (void)do_buffer(*eap->cmd == 's' ? DOBUF_SPLIT : DOBUF_GOTO, 1000 start, dir, count, eap->forceit); 1001 if (swap_exists_action == SEA_QUIT && *eap->cmd == 's') 1002 { 1003 #if defined(FEAT_EVAL) 1004 cleanup_T cs; 1005 1006 /* Reset the error/interrupt/exception state here so that 1007 * aborting() returns FALSE when closing a window. */ 1008 enter_cleanup(&cs); 1009 #endif 1010 1011 /* Quitting means closing the split window, nothing else. */ 1012 win_close(curwin, TRUE); 1013 swap_exists_action = SEA_NONE; 1014 swap_exists_did_quit = TRUE; 1015 1016 #if defined(FEAT_EVAL) 1017 /* Restore the error/interrupt/exception state if not discarded by a 1018 * new aborting error, interrupt, or uncaught exception. */ 1019 leave_cleanup(&cs); 1020 #endif 1021 } 1022 else 1023 handle_swap_exists(&old_curbuf); 1024 } 1025 1026 /* 1027 * Handle the situation of swap_exists_action being set. 1028 * It is allowed for "old_curbuf" to be NULL or invalid. 1029 */ 1030 void 1031 handle_swap_exists(bufref_T *old_curbuf) 1032 { 1033 #if defined(FEAT_EVAL) 1034 cleanup_T cs; 1035 #endif 1036 #ifdef FEAT_SYN_HL 1037 long old_tw = curbuf->b_p_tw; 1038 #endif 1039 buf_T *buf; 1040 1041 if (swap_exists_action == SEA_QUIT) 1042 { 1043 #if defined(FEAT_EVAL) 1044 /* Reset the error/interrupt/exception state here so that 1045 * aborting() returns FALSE when closing a buffer. */ 1046 enter_cleanup(&cs); 1047 #endif 1048 1049 /* User selected Quit at ATTENTION prompt. Go back to previous 1050 * buffer. If that buffer is gone or the same as the current one, 1051 * open a new, empty buffer. */ 1052 swap_exists_action = SEA_NONE; /* don't want it again */ 1053 swap_exists_did_quit = TRUE; 1054 close_buffer(curwin, curbuf, DOBUF_UNLOAD, FALSE); 1055 if (old_curbuf == NULL || !bufref_valid(old_curbuf) 1056 || old_curbuf->br_buf == curbuf) 1057 buf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED); 1058 else 1059 buf = old_curbuf->br_buf; 1060 if (buf != NULL) 1061 { 1062 int old_msg_silent = msg_silent; 1063 1064 if (shortmess(SHM_FILEINFO)) 1065 msg_silent = 1; // prevent fileinfo message 1066 enter_buffer(buf); 1067 // restore msg_silent, so that the command line will be shown 1068 msg_silent = old_msg_silent; 1069 1070 #ifdef FEAT_SYN_HL 1071 if (old_tw != curbuf->b_p_tw) 1072 check_colorcolumn(curwin); 1073 #endif 1074 } 1075 /* If "old_curbuf" is NULL we are in big trouble here... */ 1076 1077 #if defined(FEAT_EVAL) 1078 /* Restore the error/interrupt/exception state if not discarded by a 1079 * new aborting error, interrupt, or uncaught exception. */ 1080 leave_cleanup(&cs); 1081 #endif 1082 } 1083 else if (swap_exists_action == SEA_RECOVER) 1084 { 1085 #if defined(FEAT_EVAL) 1086 /* Reset the error/interrupt/exception state here so that 1087 * aborting() returns FALSE when closing a buffer. */ 1088 enter_cleanup(&cs); 1089 #endif 1090 1091 /* User selected Recover at ATTENTION prompt. */ 1092 msg_scroll = TRUE; 1093 ml_recover(FALSE); 1094 msg_puts("\n"); /* don't overwrite the last message */ 1095 cmdline_row = msg_row; 1096 do_modelines(0); 1097 1098 #if defined(FEAT_EVAL) 1099 /* Restore the error/interrupt/exception state if not discarded by a 1100 * new aborting error, interrupt, or uncaught exception. */ 1101 leave_cleanup(&cs); 1102 #endif 1103 } 1104 swap_exists_action = SEA_NONE; 1105 } 1106 1107 /* 1108 * do_bufdel() - delete or unload buffer(s) 1109 * 1110 * addr_count == 0: ":bdel" - delete current buffer 1111 * addr_count == 1: ":N bdel" or ":bdel N [N ..]" - first delete 1112 * buffer "end_bnr", then any other arguments. 1113 * addr_count == 2: ":N,N bdel" - delete buffers in range 1114 * 1115 * command can be DOBUF_UNLOAD (":bunload"), DOBUF_WIPE (":bwipeout") or 1116 * DOBUF_DEL (":bdel") 1117 * 1118 * Returns error message or NULL 1119 */ 1120 char * 1121 do_bufdel( 1122 int command, 1123 char_u *arg, /* pointer to extra arguments */ 1124 int addr_count, 1125 int start_bnr, /* first buffer number in a range */ 1126 int end_bnr, /* buffer nr or last buffer nr in a range */ 1127 int forceit) 1128 { 1129 int do_current = 0; /* delete current buffer? */ 1130 int deleted = 0; /* number of buffers deleted */ 1131 char *errormsg = NULL; /* return value */ 1132 int bnr; /* buffer number */ 1133 char_u *p; 1134 1135 if (addr_count == 0) 1136 { 1137 (void)do_buffer(command, DOBUF_CURRENT, FORWARD, 0, forceit); 1138 } 1139 else 1140 { 1141 if (addr_count == 2) 1142 { 1143 if (*arg) /* both range and argument is not allowed */ 1144 return _(e_trailing); 1145 bnr = start_bnr; 1146 } 1147 else /* addr_count == 1 */ 1148 bnr = end_bnr; 1149 1150 for ( ;!got_int; ui_breakcheck()) 1151 { 1152 /* 1153 * delete the current buffer last, otherwise when the 1154 * current buffer is deleted, the next buffer becomes 1155 * the current one and will be loaded, which may then 1156 * also be deleted, etc. 1157 */ 1158 if (bnr == curbuf->b_fnum) 1159 do_current = bnr; 1160 else if (do_buffer(command, DOBUF_FIRST, FORWARD, (int)bnr, 1161 forceit) == OK) 1162 ++deleted; 1163 1164 /* 1165 * find next buffer number to delete/unload 1166 */ 1167 if (addr_count == 2) 1168 { 1169 if (++bnr > end_bnr) 1170 break; 1171 } 1172 else /* addr_count == 1 */ 1173 { 1174 arg = skipwhite(arg); 1175 if (*arg == NUL) 1176 break; 1177 if (!VIM_ISDIGIT(*arg)) 1178 { 1179 p = skiptowhite_esc(arg); 1180 bnr = buflist_findpat(arg, p, command == DOBUF_WIPE, 1181 FALSE, FALSE); 1182 if (bnr < 0) /* failed */ 1183 break; 1184 arg = p; 1185 } 1186 else 1187 bnr = getdigits(&arg); 1188 } 1189 } 1190 if (!got_int && do_current && do_buffer(command, DOBUF_FIRST, 1191 FORWARD, do_current, forceit) == OK) 1192 ++deleted; 1193 1194 if (deleted == 0) 1195 { 1196 if (command == DOBUF_UNLOAD) 1197 STRCPY(IObuff, _("E515: No buffers were unloaded")); 1198 else if (command == DOBUF_DEL) 1199 STRCPY(IObuff, _("E516: No buffers were deleted")); 1200 else 1201 STRCPY(IObuff, _("E517: No buffers were wiped out")); 1202 errormsg = (char *)IObuff; 1203 } 1204 else if (deleted >= p_report) 1205 { 1206 if (command == DOBUF_UNLOAD) 1207 smsg(NGETTEXT("%d buffer unloaded", 1208 "%d buffers unloaded", deleted), deleted); 1209 else if (command == DOBUF_DEL) 1210 smsg(NGETTEXT("%d buffer deleted", 1211 "%d buffers deleted", deleted), deleted); 1212 else 1213 smsg(NGETTEXT("%d buffer wiped out", 1214 "%d buffers wiped out", deleted), deleted); 1215 } 1216 } 1217 1218 1219 return errormsg; 1220 } 1221 1222 /* 1223 * Make the current buffer empty. 1224 * Used when it is wiped out and it's the last buffer. 1225 */ 1226 static int 1227 empty_curbuf( 1228 int close_others, 1229 int forceit, 1230 int action) 1231 { 1232 int retval; 1233 buf_T *buf = curbuf; 1234 bufref_T bufref; 1235 1236 if (action == DOBUF_UNLOAD) 1237 { 1238 emsg(_("E90: Cannot unload last buffer")); 1239 return FAIL; 1240 } 1241 1242 set_bufref(&bufref, buf); 1243 if (close_others) 1244 /* Close any other windows on this buffer, then make it empty. */ 1245 close_windows(buf, TRUE); 1246 1247 setpcmark(); 1248 retval = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 1249 forceit ? ECMD_FORCEIT : 0, curwin); 1250 1251 /* 1252 * do_ecmd() may create a new buffer, then we have to delete 1253 * the old one. But do_ecmd() may have done that already, check 1254 * if the buffer still exists. 1255 */ 1256 if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows == 0) 1257 close_buffer(NULL, buf, action, FALSE); 1258 if (!close_others) 1259 need_fileinfo = FALSE; 1260 return retval; 1261 } 1262 1263 /* 1264 * Implementation of the commands for the buffer list. 1265 * 1266 * action == DOBUF_GOTO go to specified buffer 1267 * action == DOBUF_SPLIT split window and go to specified buffer 1268 * action == DOBUF_UNLOAD unload specified buffer(s) 1269 * action == DOBUF_DEL delete specified buffer(s) from buffer list 1270 * action == DOBUF_WIPE delete specified buffer(s) really 1271 * 1272 * start == DOBUF_CURRENT go to "count" buffer from current buffer 1273 * start == DOBUF_FIRST go to "count" buffer from first buffer 1274 * start == DOBUF_LAST go to "count" buffer from last buffer 1275 * start == DOBUF_MOD go to "count" modified buffer from current buffer 1276 * 1277 * Return FAIL or OK. 1278 */ 1279 int 1280 do_buffer( 1281 int action, 1282 int start, 1283 int dir, /* FORWARD or BACKWARD */ 1284 int count, /* buffer number or number of buffers */ 1285 int forceit) /* TRUE for :...! */ 1286 { 1287 buf_T *buf; 1288 buf_T *bp; 1289 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1290 || action == DOBUF_WIPE); 1291 1292 switch (start) 1293 { 1294 case DOBUF_FIRST: buf = firstbuf; break; 1295 case DOBUF_LAST: buf = lastbuf; break; 1296 default: buf = curbuf; break; 1297 } 1298 if (start == DOBUF_MOD) /* find next modified buffer */ 1299 { 1300 while (count-- > 0) 1301 { 1302 do 1303 { 1304 buf = buf->b_next; 1305 if (buf == NULL) 1306 buf = firstbuf; 1307 } 1308 while (buf != curbuf && !bufIsChanged(buf)); 1309 } 1310 if (!bufIsChanged(buf)) 1311 { 1312 emsg(_("E84: No modified buffer found")); 1313 return FAIL; 1314 } 1315 } 1316 else if (start == DOBUF_FIRST && count) /* find specified buffer number */ 1317 { 1318 while (buf != NULL && buf->b_fnum != count) 1319 buf = buf->b_next; 1320 } 1321 else 1322 { 1323 bp = NULL; 1324 while (count > 0 || (!unload && !buf->b_p_bl && bp != buf)) 1325 { 1326 /* remember the buffer where we start, we come back there when all 1327 * buffers are unlisted. */ 1328 if (bp == NULL) 1329 bp = buf; 1330 if (dir == FORWARD) 1331 { 1332 buf = buf->b_next; 1333 if (buf == NULL) 1334 buf = firstbuf; 1335 } 1336 else 1337 { 1338 buf = buf->b_prev; 1339 if (buf == NULL) 1340 buf = lastbuf; 1341 } 1342 /* don't count unlisted buffers */ 1343 if (unload || buf->b_p_bl) 1344 { 1345 --count; 1346 bp = NULL; /* use this buffer as new starting point */ 1347 } 1348 if (bp == buf) 1349 { 1350 /* back where we started, didn't find anything. */ 1351 emsg(_("E85: There is no listed buffer")); 1352 return FAIL; 1353 } 1354 } 1355 } 1356 1357 if (buf == NULL) /* could not find it */ 1358 { 1359 if (start == DOBUF_FIRST) 1360 { 1361 /* don't warn when deleting */ 1362 if (!unload) 1363 semsg(_(e_nobufnr), count); 1364 } 1365 else if (dir == FORWARD) 1366 emsg(_("E87: Cannot go beyond last buffer")); 1367 else 1368 emsg(_("E88: Cannot go before first buffer")); 1369 return FAIL; 1370 } 1371 1372 #ifdef FEAT_GUI 1373 need_mouse_correct = TRUE; 1374 #endif 1375 1376 /* 1377 * delete buffer buf from memory and/or the list 1378 */ 1379 if (unload) 1380 { 1381 int forward; 1382 bufref_T bufref; 1383 1384 if (!can_unload_buffer(buf)) 1385 return FAIL; 1386 1387 set_bufref(&bufref, buf); 1388 1389 /* When unloading or deleting a buffer that's already unloaded and 1390 * unlisted: fail silently. */ 1391 if (action != DOBUF_WIPE && buf->b_ml.ml_mfp == NULL && !buf->b_p_bl) 1392 return FAIL; 1393 1394 if (!forceit && bufIsChanged(buf)) 1395 { 1396 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1397 if ((p_confirm || cmdmod.confirm) && p_write) 1398 { 1399 dialog_changed(buf, FALSE); 1400 if (!bufref_valid(&bufref)) 1401 /* Autocommand deleted buffer, oops! It's not changed 1402 * now. */ 1403 return FAIL; 1404 /* If it's still changed fail silently, the dialog already 1405 * mentioned why it fails. */ 1406 if (bufIsChanged(buf)) 1407 return FAIL; 1408 } 1409 else 1410 #endif 1411 { 1412 semsg(_("E89: No write since last change for buffer %d (add ! to override)"), 1413 buf->b_fnum); 1414 return FAIL; 1415 } 1416 } 1417 1418 /* When closing the current buffer stop Visual mode. */ 1419 if (buf == curbuf && VIsual_active) 1420 end_visual_mode(); 1421 1422 /* 1423 * If deleting the last (listed) buffer, make it empty. 1424 * The last (listed) buffer cannot be unloaded. 1425 */ 1426 FOR_ALL_BUFFERS(bp) 1427 if (bp->b_p_bl && bp != buf) 1428 break; 1429 if (bp == NULL && buf == curbuf) 1430 return empty_curbuf(TRUE, forceit, action); 1431 1432 /* 1433 * If the deleted buffer is the current one, close the current window 1434 * (unless it's the only window). Repeat this so long as we end up in 1435 * a window with this buffer. 1436 */ 1437 while (buf == curbuf 1438 && !(curwin->w_closing || curwin->w_buffer->b_locked > 0) 1439 && (!ONE_WINDOW || first_tabpage->tp_next != NULL)) 1440 { 1441 if (win_close(curwin, FALSE) == FAIL) 1442 break; 1443 } 1444 1445 /* 1446 * If the buffer to be deleted is not the current one, delete it here. 1447 */ 1448 if (buf != curbuf) 1449 { 1450 close_windows(buf, FALSE); 1451 if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows <= 0) 1452 close_buffer(NULL, buf, action, FALSE); 1453 return OK; 1454 } 1455 1456 /* 1457 * Deleting the current buffer: Need to find another buffer to go to. 1458 * There should be another, otherwise it would have been handled 1459 * above. However, autocommands may have deleted all buffers. 1460 * First use au_new_curbuf.br_buf, if it is valid. 1461 * Then prefer the buffer we most recently visited. 1462 * Else try to find one that is loaded, after the current buffer, 1463 * then before the current buffer. 1464 * Finally use any buffer. 1465 */ 1466 buf = NULL; /* selected buffer */ 1467 bp = NULL; /* used when no loaded buffer found */ 1468 if (au_new_curbuf.br_buf != NULL && bufref_valid(&au_new_curbuf)) 1469 buf = au_new_curbuf.br_buf; 1470 #ifdef FEAT_JUMPLIST 1471 else if (curwin->w_jumplistlen > 0) 1472 { 1473 int jumpidx; 1474 1475 jumpidx = curwin->w_jumplistidx - 1; 1476 if (jumpidx < 0) 1477 jumpidx = curwin->w_jumplistlen - 1; 1478 1479 forward = jumpidx; 1480 while (jumpidx != curwin->w_jumplistidx) 1481 { 1482 buf = buflist_findnr(curwin->w_jumplist[jumpidx].fmark.fnum); 1483 if (buf != NULL) 1484 { 1485 if (buf == curbuf || !buf->b_p_bl) 1486 buf = NULL; /* skip current and unlisted bufs */ 1487 else if (buf->b_ml.ml_mfp == NULL) 1488 { 1489 /* skip unloaded buf, but may keep it for later */ 1490 if (bp == NULL) 1491 bp = buf; 1492 buf = NULL; 1493 } 1494 } 1495 if (buf != NULL) /* found a valid buffer: stop searching */ 1496 break; 1497 /* advance to older entry in jump list */ 1498 if (!jumpidx && curwin->w_jumplistidx == curwin->w_jumplistlen) 1499 break; 1500 if (--jumpidx < 0) 1501 jumpidx = curwin->w_jumplistlen - 1; 1502 if (jumpidx == forward) /* List exhausted for sure */ 1503 break; 1504 } 1505 } 1506 #endif 1507 1508 if (buf == NULL) /* No previous buffer, Try 2'nd approach */ 1509 { 1510 forward = TRUE; 1511 buf = curbuf->b_next; 1512 for (;;) 1513 { 1514 if (buf == NULL) 1515 { 1516 if (!forward) /* tried both directions */ 1517 break; 1518 buf = curbuf->b_prev; 1519 forward = FALSE; 1520 continue; 1521 } 1522 /* in non-help buffer, try to skip help buffers, and vv */ 1523 if (buf->b_help == curbuf->b_help && buf->b_p_bl) 1524 { 1525 if (buf->b_ml.ml_mfp != NULL) /* found loaded buffer */ 1526 break; 1527 if (bp == NULL) /* remember unloaded buf for later */ 1528 bp = buf; 1529 } 1530 if (forward) 1531 buf = buf->b_next; 1532 else 1533 buf = buf->b_prev; 1534 } 1535 } 1536 if (buf == NULL) /* No loaded buffer, use unloaded one */ 1537 buf = bp; 1538 if (buf == NULL) /* No loaded buffer, find listed one */ 1539 { 1540 FOR_ALL_BUFFERS(buf) 1541 if (buf->b_p_bl && buf != curbuf) 1542 break; 1543 } 1544 if (buf == NULL) /* Still no buffer, just take one */ 1545 { 1546 if (curbuf->b_next != NULL) 1547 buf = curbuf->b_next; 1548 else 1549 buf = curbuf->b_prev; 1550 } 1551 } 1552 1553 if (buf == NULL) 1554 { 1555 /* Autocommands must have wiped out all other buffers. Only option 1556 * now is to make the current buffer empty. */ 1557 return empty_curbuf(FALSE, forceit, action); 1558 } 1559 1560 /* 1561 * make buf current buffer 1562 */ 1563 if (action == DOBUF_SPLIT) /* split window first */ 1564 { 1565 /* If 'switchbuf' contains "useopen": jump to first window containing 1566 * "buf" if one exists */ 1567 if ((swb_flags & SWB_USEOPEN) && buf_jump_open_win(buf)) 1568 return OK; 1569 /* If 'switchbuf' contains "usetab": jump to first window in any tab 1570 * page containing "buf" if one exists */ 1571 if ((swb_flags & SWB_USETAB) && buf_jump_open_tab(buf)) 1572 return OK; 1573 if (win_split(0, 0) == FAIL) 1574 return FAIL; 1575 } 1576 1577 /* go to current buffer - nothing to do */ 1578 if (buf == curbuf) 1579 return OK; 1580 1581 /* 1582 * Check if the current buffer may be abandoned. 1583 */ 1584 if (action == DOBUF_GOTO && !can_abandon(curbuf, forceit)) 1585 { 1586 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) 1587 if ((p_confirm || cmdmod.confirm) && p_write) 1588 { 1589 bufref_T bufref; 1590 1591 set_bufref(&bufref, buf); 1592 dialog_changed(curbuf, FALSE); 1593 if (!bufref_valid(&bufref)) 1594 /* Autocommand deleted buffer, oops! */ 1595 return FAIL; 1596 } 1597 if (bufIsChanged(curbuf)) 1598 #endif 1599 { 1600 no_write_message(); 1601 return FAIL; 1602 } 1603 } 1604 1605 /* Go to the other buffer. */ 1606 set_curbuf(buf, action); 1607 1608 if (action == DOBUF_SPLIT) 1609 RESET_BINDING(curwin); /* reset 'scrollbind' and 'cursorbind' */ 1610 1611 #if defined(FEAT_EVAL) 1612 if (aborting()) /* autocmds may abort script processing */ 1613 return FAIL; 1614 #endif 1615 1616 return OK; 1617 } 1618 1619 /* 1620 * Set current buffer to "buf". Executes autocommands and closes current 1621 * buffer. "action" tells how to close the current buffer: 1622 * DOBUF_GOTO free or hide it 1623 * DOBUF_SPLIT nothing 1624 * DOBUF_UNLOAD unload it 1625 * DOBUF_DEL delete it 1626 * DOBUF_WIPE wipe it out 1627 */ 1628 void 1629 set_curbuf(buf_T *buf, int action) 1630 { 1631 buf_T *prevbuf; 1632 int unload = (action == DOBUF_UNLOAD || action == DOBUF_DEL 1633 || action == DOBUF_WIPE); 1634 #ifdef FEAT_SYN_HL 1635 long old_tw = curbuf->b_p_tw; 1636 #endif 1637 bufref_T newbufref; 1638 bufref_T prevbufref; 1639 1640 setpcmark(); 1641 if (!cmdmod.keepalt) 1642 curwin->w_alt_fnum = curbuf->b_fnum; /* remember alternate file */ 1643 buflist_altfpos(curwin); /* remember curpos */ 1644 1645 /* Don't restart Select mode after switching to another buffer. */ 1646 VIsual_reselect = FALSE; 1647 1648 /* close_windows() or apply_autocmds() may change curbuf and wipe out "buf" 1649 */ 1650 prevbuf = curbuf; 1651 set_bufref(&prevbufref, prevbuf); 1652 set_bufref(&newbufref, buf); 1653 1654 /* Autocommands may delete the curren buffer and/or the buffer we wan to go 1655 * to. In those cases don't close the buffer. */ 1656 if (!apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf) 1657 || (bufref_valid(&prevbufref) 1658 && bufref_valid(&newbufref) 1659 #ifdef FEAT_EVAL 1660 && !aborting() 1661 #endif 1662 )) 1663 { 1664 #ifdef FEAT_SYN_HL 1665 if (prevbuf == curwin->w_buffer) 1666 reset_synblock(curwin); 1667 #endif 1668 if (unload) 1669 close_windows(prevbuf, FALSE); 1670 #if defined(FEAT_EVAL) 1671 if (bufref_valid(&prevbufref) && !aborting()) 1672 #else 1673 if (bufref_valid(&prevbufref)) 1674 #endif 1675 { 1676 win_T *previouswin = curwin; 1677 if (prevbuf == curbuf) 1678 u_sync(FALSE); 1679 close_buffer(prevbuf == curwin->w_buffer ? curwin : NULL, prevbuf, 1680 unload ? action : (action == DOBUF_GOTO 1681 && !buf_hide(prevbuf) 1682 && !bufIsChanged(prevbuf)) ? DOBUF_UNLOAD : 0, FALSE); 1683 if (curwin != previouswin && win_valid(previouswin)) 1684 /* autocommands changed curwin, Grr! */ 1685 curwin = previouswin; 1686 } 1687 } 1688 /* An autocommand may have deleted "buf", already entered it (e.g., when 1689 * it did ":bunload") or aborted the script processing. 1690 * If curwin->w_buffer is null, enter_buffer() will make it valid again */ 1691 if ((buf_valid(buf) && buf != curbuf 1692 #ifdef FEAT_EVAL 1693 && !aborting() 1694 #endif 1695 ) || curwin->w_buffer == NULL) 1696 { 1697 enter_buffer(buf); 1698 #ifdef FEAT_SYN_HL 1699 if (old_tw != curbuf->b_p_tw) 1700 check_colorcolumn(curwin); 1701 #endif 1702 } 1703 } 1704 1705 /* 1706 * Enter a new current buffer. 1707 * Old curbuf must have been abandoned already! This also means "curbuf" may 1708 * be pointing to freed memory. 1709 */ 1710 void 1711 enter_buffer(buf_T *buf) 1712 { 1713 /* Copy buffer and window local option values. Not for a help buffer. */ 1714 buf_copy_options(buf, BCO_ENTER | BCO_NOHELP); 1715 if (!buf->b_help) 1716 get_winopts(buf); 1717 #ifdef FEAT_FOLDING 1718 else 1719 /* Remove all folds in the window. */ 1720 clearFolding(curwin); 1721 foldUpdateAll(curwin); /* update folds (later). */ 1722 #endif 1723 1724 /* Get the buffer in the current window. */ 1725 curwin->w_buffer = buf; 1726 curbuf = buf; 1727 ++curbuf->b_nwindows; 1728 1729 #ifdef FEAT_DIFF 1730 if (curwin->w_p_diff) 1731 diff_buf_add(curbuf); 1732 #endif 1733 1734 #ifdef FEAT_SYN_HL 1735 curwin->w_s = &(curbuf->b_s); 1736 #endif 1737 1738 /* Cursor on first line by default. */ 1739 curwin->w_cursor.lnum = 1; 1740 curwin->w_cursor.col = 0; 1741 curwin->w_cursor.coladd = 0; 1742 curwin->w_set_curswant = TRUE; 1743 curwin->w_topline_was_set = FALSE; 1744 1745 /* mark cursor position as being invalid */ 1746 curwin->w_valid = 0; 1747 1748 buflist_setfpos(curbuf, curwin, curbuf->b_last_cursor.lnum, 1749 curbuf->b_last_cursor.col, TRUE); 1750 1751 /* Make sure the buffer is loaded. */ 1752 if (curbuf->b_ml.ml_mfp == NULL) /* need to load the file */ 1753 { 1754 /* If there is no filetype, allow for detecting one. Esp. useful for 1755 * ":ball" used in a autocommand. If there already is a filetype we 1756 * might prefer to keep it. */ 1757 if (*curbuf->b_p_ft == NUL) 1758 did_filetype = FALSE; 1759 1760 open_buffer(FALSE, NULL, 0); 1761 } 1762 else 1763 { 1764 if (!msg_silent && !shortmess(SHM_FILEINFO)) 1765 need_fileinfo = TRUE; // display file info after redraw 1766 1767 // check if file changed 1768 (void)buf_check_timestamp(curbuf, FALSE); 1769 1770 curwin->w_topline = 1; 1771 #ifdef FEAT_DIFF 1772 curwin->w_topfill = 0; 1773 #endif 1774 apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); 1775 apply_autocmds(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf); 1776 } 1777 1778 /* If autocommands did not change the cursor position, restore cursor lnum 1779 * and possibly cursor col. */ 1780 if (curwin->w_cursor.lnum == 1 && inindent(0)) 1781 buflist_getfpos(); 1782 1783 check_arg_idx(curwin); /* check for valid arg_idx */ 1784 #ifdef FEAT_TITLE 1785 maketitle(); 1786 #endif 1787 /* when autocmds didn't change it */ 1788 if (curwin->w_topline == 1 && !curwin->w_topline_was_set) 1789 scroll_cursor_halfway(FALSE); /* redisplay at correct position */ 1790 1791 #ifdef FEAT_NETBEANS_INTG 1792 /* Send fileOpened event because we've changed buffers. */ 1793 netbeans_file_activated(curbuf); 1794 #endif 1795 1796 /* Change directories when the 'acd' option is set. */ 1797 DO_AUTOCHDIR; 1798 1799 #ifdef FEAT_KEYMAP 1800 if (curbuf->b_kmap_state & KEYMAP_INIT) 1801 (void)keymap_init(); 1802 #endif 1803 #ifdef FEAT_SPELL 1804 /* May need to set the spell language. Can only do this after the buffer 1805 * has been properly setup. */ 1806 if (!curbuf->b_help && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) 1807 (void)did_set_spelllang(curwin); 1808 #endif 1809 #ifdef FEAT_VIMINFO 1810 curbuf->b_last_used = vim_time(); 1811 #endif 1812 1813 redraw_later(NOT_VALID); 1814 } 1815 1816 #if defined(FEAT_AUTOCHDIR) || defined(PROTO) 1817 /* 1818 * Change to the directory of the current buffer. 1819 * Don't do this while still starting up. 1820 */ 1821 void 1822 do_autochdir(void) 1823 { 1824 if ((starting == 0 || test_autochdir) 1825 && curbuf->b_ffname != NULL 1826 && vim_chdirfile(curbuf->b_ffname, "auto") == OK) 1827 shorten_fnames(TRUE); 1828 } 1829 #endif 1830 1831 void 1832 no_write_message(void) 1833 { 1834 #ifdef FEAT_TERMINAL 1835 if (term_job_running(curbuf->b_term)) 1836 emsg(_("E948: Job still running (add ! to end the job)")); 1837 else 1838 #endif 1839 emsg(_("E37: No write since last change (add ! to override)")); 1840 } 1841 1842 void 1843 no_write_message_nobang(buf_T *buf UNUSED) 1844 { 1845 #ifdef FEAT_TERMINAL 1846 if (term_job_running(buf->b_term)) 1847 emsg(_("E948: Job still running")); 1848 else 1849 #endif 1850 emsg(_("E37: No write since last change")); 1851 } 1852 1853 /* 1854 * functions for dealing with the buffer list 1855 */ 1856 1857 static int top_file_num = 1; /* highest file number */ 1858 1859 /* 1860 * Return TRUE if the current buffer is empty, unnamed, unmodified and used in 1861 * only one window. That means it can be re-used. 1862 */ 1863 int 1864 curbuf_reusable(void) 1865 { 1866 return (curbuf != NULL 1867 && curbuf->b_ffname == NULL 1868 && curbuf->b_nwindows <= 1 1869 && (curbuf->b_ml.ml_mfp == NULL || BUFEMPTY()) 1870 #if defined(FEAT_QUICKFIX) 1871 && !bt_quickfix(curbuf) 1872 #endif 1873 && !curbufIsChanged()); 1874 } 1875 1876 /* 1877 * Add a file name to the buffer list. Return a pointer to the buffer. 1878 * If the same file name already exists return a pointer to that buffer. 1879 * If it does not exist, or if fname == NULL, a new entry is created. 1880 * If (flags & BLN_CURBUF) is TRUE, may use current buffer. 1881 * If (flags & BLN_LISTED) is TRUE, add new buffer to buffer list. 1882 * If (flags & BLN_DUMMY) is TRUE, don't count it as a real buffer. 1883 * If (flags & BLN_NEW) is TRUE, don't use an existing buffer. 1884 * If (flags & BLN_NOOPT) is TRUE, don't copy options from the current buffer 1885 * if the buffer already exists. 1886 * This is the ONLY way to create a new buffer. 1887 */ 1888 buf_T * 1889 buflist_new( 1890 char_u *ffname_arg, // full path of fname or relative 1891 char_u *sfname_arg, // short fname or NULL 1892 linenr_T lnum, // preferred cursor line 1893 int flags) // BLN_ defines 1894 { 1895 char_u *ffname = ffname_arg; 1896 char_u *sfname = sfname_arg; 1897 buf_T *buf; 1898 #ifdef UNIX 1899 stat_T st; 1900 #endif 1901 1902 if (top_file_num == 1) 1903 hash_init(&buf_hashtab); 1904 1905 fname_expand(curbuf, &ffname, &sfname); // will allocate ffname 1906 1907 /* 1908 * If file name already exists in the list, update the entry. 1909 */ 1910 #ifdef UNIX 1911 /* On Unix we can use inode numbers when the file exists. Works better 1912 * for hard links. */ 1913 if (sfname == NULL || mch_stat((char *)sfname, &st) < 0) 1914 st.st_dev = (dev_T)-1; 1915 #endif 1916 if (ffname != NULL && !(flags & (BLN_DUMMY | BLN_NEW)) && (buf = 1917 #ifdef UNIX 1918 buflist_findname_stat(ffname, &st) 1919 #else 1920 buflist_findname(ffname) 1921 #endif 1922 ) != NULL) 1923 { 1924 vim_free(ffname); 1925 if (lnum != 0) 1926 buflist_setfpos(buf, curwin, lnum, (colnr_T)0, FALSE); 1927 1928 if ((flags & BLN_NOOPT) == 0) 1929 /* copy the options now, if 'cpo' doesn't have 's' and not done 1930 * already */ 1931 buf_copy_options(buf, 0); 1932 1933 if ((flags & BLN_LISTED) && !buf->b_p_bl) 1934 { 1935 bufref_T bufref; 1936 1937 buf->b_p_bl = TRUE; 1938 set_bufref(&bufref, buf); 1939 if (!(flags & BLN_DUMMY)) 1940 { 1941 if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf) 1942 && !bufref_valid(&bufref)) 1943 return NULL; 1944 } 1945 } 1946 return buf; 1947 } 1948 1949 /* 1950 * If the current buffer has no name and no contents, use the current 1951 * buffer. Otherwise: Need to allocate a new buffer structure. 1952 * 1953 * This is the ONLY place where a new buffer structure is allocated! 1954 * (A spell file buffer is allocated in spell.c, but that's not a normal 1955 * buffer.) 1956 */ 1957 buf = NULL; 1958 if ((flags & BLN_CURBUF) && curbuf_reusable()) 1959 { 1960 buf = curbuf; 1961 /* It's like this buffer is deleted. Watch out for autocommands that 1962 * change curbuf! If that happens, allocate a new buffer anyway. */ 1963 if (curbuf->b_p_bl) 1964 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 1965 if (buf == curbuf) 1966 apply_autocmds(EVENT_BUFWIPEOUT, NULL, NULL, FALSE, curbuf); 1967 #ifdef FEAT_EVAL 1968 if (aborting()) /* autocmds may abort script processing */ 1969 return NULL; 1970 #endif 1971 if (buf == curbuf) 1972 { 1973 /* Make sure 'bufhidden' and 'buftype' are empty */ 1974 clear_string_option(&buf->b_p_bh); 1975 clear_string_option(&buf->b_p_bt); 1976 } 1977 } 1978 if (buf != curbuf || curbuf == NULL) 1979 { 1980 buf = ALLOC_CLEAR_ONE(buf_T); 1981 if (buf == NULL) 1982 { 1983 vim_free(ffname); 1984 return NULL; 1985 } 1986 #ifdef FEAT_EVAL 1987 /* init b: variables */ 1988 buf->b_vars = dict_alloc(); 1989 if (buf->b_vars == NULL) 1990 { 1991 vim_free(ffname); 1992 vim_free(buf); 1993 return NULL; 1994 } 1995 init_var_dict(buf->b_vars, &buf->b_bufvar, VAR_SCOPE); 1996 #endif 1997 init_changedtick(buf); 1998 } 1999 2000 if (ffname != NULL) 2001 { 2002 buf->b_ffname = ffname; 2003 buf->b_sfname = vim_strsave(sfname); 2004 } 2005 2006 clear_wininfo(buf); 2007 buf->b_wininfo = ALLOC_CLEAR_ONE(wininfo_T); 2008 2009 if ((ffname != NULL && (buf->b_ffname == NULL || buf->b_sfname == NULL)) 2010 || buf->b_wininfo == NULL) 2011 { 2012 if (buf->b_sfname != buf->b_ffname) 2013 VIM_CLEAR(buf->b_sfname); 2014 else 2015 buf->b_sfname = NULL; 2016 VIM_CLEAR(buf->b_ffname); 2017 if (buf != curbuf) 2018 free_buffer(buf); 2019 return NULL; 2020 } 2021 2022 if (buf == curbuf) 2023 { 2024 /* free all things allocated for this buffer */ 2025 buf_freeall(buf, 0); 2026 if (buf != curbuf) /* autocommands deleted the buffer! */ 2027 return NULL; 2028 #if defined(FEAT_EVAL) 2029 if (aborting()) /* autocmds may abort script processing */ 2030 return NULL; 2031 #endif 2032 free_buffer_stuff(buf, FALSE); /* delete local variables et al. */ 2033 2034 /* Init the options. */ 2035 buf->b_p_initialized = FALSE; 2036 buf_copy_options(buf, BCO_ENTER); 2037 2038 #ifdef FEAT_KEYMAP 2039 /* need to reload lmaps and set b:keymap_name */ 2040 curbuf->b_kmap_state |= KEYMAP_INIT; 2041 #endif 2042 } 2043 else 2044 { 2045 /* 2046 * put new buffer at the end of the buffer list 2047 */ 2048 buf->b_next = NULL; 2049 if (firstbuf == NULL) /* buffer list is empty */ 2050 { 2051 buf->b_prev = NULL; 2052 firstbuf = buf; 2053 } 2054 else /* append new buffer at end of list */ 2055 { 2056 lastbuf->b_next = buf; 2057 buf->b_prev = lastbuf; 2058 } 2059 lastbuf = buf; 2060 2061 buf->b_fnum = top_file_num++; 2062 if (top_file_num < 0) /* wrap around (may cause duplicates) */ 2063 { 2064 emsg(_("W14: Warning: List of file names overflow")); 2065 if (emsg_silent == 0) 2066 { 2067 out_flush(); 2068 ui_delay(3000L, TRUE); /* make sure it is noticed */ 2069 } 2070 top_file_num = 1; 2071 } 2072 buf_hashtab_add(buf); 2073 2074 /* 2075 * Always copy the options from the current buffer. 2076 */ 2077 buf_copy_options(buf, BCO_ALWAYS); 2078 } 2079 2080 buf->b_wininfo->wi_fpos.lnum = lnum; 2081 buf->b_wininfo->wi_win = curwin; 2082 2083 #ifdef FEAT_SYN_HL 2084 hash_init(&buf->b_s.b_keywtab); 2085 hash_init(&buf->b_s.b_keywtab_ic); 2086 #endif 2087 2088 buf->b_fname = buf->b_sfname; 2089 #ifdef UNIX 2090 if (st.st_dev == (dev_T)-1) 2091 buf->b_dev_valid = FALSE; 2092 else 2093 { 2094 buf->b_dev_valid = TRUE; 2095 buf->b_dev = st.st_dev; 2096 buf->b_ino = st.st_ino; 2097 } 2098 #endif 2099 buf->b_u_synced = TRUE; 2100 buf->b_flags = BF_CHECK_RO | BF_NEVERLOADED; 2101 if (flags & BLN_DUMMY) 2102 buf->b_flags |= BF_DUMMY; 2103 buf_clear_file(buf); 2104 clrallmarks(buf); /* clear marks */ 2105 fmarks_check_names(buf); /* check file marks for this file */ 2106 buf->b_p_bl = (flags & BLN_LISTED) ? TRUE : FALSE; /* init 'buflisted' */ 2107 if (!(flags & BLN_DUMMY)) 2108 { 2109 bufref_T bufref; 2110 2111 /* Tricky: these autocommands may change the buffer list. They could 2112 * also split the window with re-using the one empty buffer. This may 2113 * result in unexpectedly losing the empty buffer. */ 2114 set_bufref(&bufref, buf); 2115 if (apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf) 2116 && !bufref_valid(&bufref)) 2117 return NULL; 2118 if (flags & BLN_LISTED) 2119 { 2120 if (apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf) 2121 && !bufref_valid(&bufref)) 2122 return NULL; 2123 } 2124 #ifdef FEAT_EVAL 2125 if (aborting()) /* autocmds may abort script processing */ 2126 return NULL; 2127 #endif 2128 } 2129 2130 return buf; 2131 } 2132 2133 /* 2134 * Free the memory for the options of a buffer. 2135 * If "free_p_ff" is TRUE also free 'fileformat', 'buftype' and 2136 * 'fileencoding'. 2137 */ 2138 void 2139 free_buf_options( 2140 buf_T *buf, 2141 int free_p_ff) 2142 { 2143 if (free_p_ff) 2144 { 2145 clear_string_option(&buf->b_p_fenc); 2146 clear_string_option(&buf->b_p_ff); 2147 clear_string_option(&buf->b_p_bh); 2148 clear_string_option(&buf->b_p_bt); 2149 } 2150 #ifdef FEAT_FIND_ID 2151 clear_string_option(&buf->b_p_def); 2152 clear_string_option(&buf->b_p_inc); 2153 # ifdef FEAT_EVAL 2154 clear_string_option(&buf->b_p_inex); 2155 # endif 2156 #endif 2157 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL) 2158 clear_string_option(&buf->b_p_inde); 2159 clear_string_option(&buf->b_p_indk); 2160 #endif 2161 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL) 2162 clear_string_option(&buf->b_p_bexpr); 2163 #endif 2164 #if defined(FEAT_CRYPT) 2165 clear_string_option(&buf->b_p_cm); 2166 #endif 2167 clear_string_option(&buf->b_p_fp); 2168 #if defined(FEAT_EVAL) 2169 clear_string_option(&buf->b_p_fex); 2170 #endif 2171 #ifdef FEAT_CRYPT 2172 clear_string_option(&buf->b_p_key); 2173 #endif 2174 clear_string_option(&buf->b_p_kp); 2175 clear_string_option(&buf->b_p_mps); 2176 clear_string_option(&buf->b_p_fo); 2177 clear_string_option(&buf->b_p_flp); 2178 clear_string_option(&buf->b_p_isk); 2179 #ifdef FEAT_VARTABS 2180 clear_string_option(&buf->b_p_vsts); 2181 vim_free(buf->b_p_vsts_nopaste); 2182 buf->b_p_vsts_nopaste = NULL; 2183 vim_free(buf->b_p_vsts_array); 2184 buf->b_p_vsts_array = NULL; 2185 clear_string_option(&buf->b_p_vts); 2186 VIM_CLEAR(buf->b_p_vts_array); 2187 #endif 2188 #ifdef FEAT_KEYMAP 2189 clear_string_option(&buf->b_p_keymap); 2190 keymap_clear(&buf->b_kmap_ga); 2191 ga_clear(&buf->b_kmap_ga); 2192 #endif 2193 #ifdef FEAT_COMMENTS 2194 clear_string_option(&buf->b_p_com); 2195 #endif 2196 #ifdef FEAT_FOLDING 2197 clear_string_option(&buf->b_p_cms); 2198 #endif 2199 clear_string_option(&buf->b_p_nf); 2200 #ifdef FEAT_SYN_HL 2201 clear_string_option(&buf->b_p_syn); 2202 clear_string_option(&buf->b_s.b_syn_isk); 2203 #endif 2204 #ifdef FEAT_SPELL 2205 clear_string_option(&buf->b_s.b_p_spc); 2206 clear_string_option(&buf->b_s.b_p_spf); 2207 vim_regfree(buf->b_s.b_cap_prog); 2208 buf->b_s.b_cap_prog = NULL; 2209 clear_string_option(&buf->b_s.b_p_spl); 2210 #endif 2211 #ifdef FEAT_SEARCHPATH 2212 clear_string_option(&buf->b_p_sua); 2213 #endif 2214 clear_string_option(&buf->b_p_ft); 2215 #ifdef FEAT_CINDENT 2216 clear_string_option(&buf->b_p_cink); 2217 clear_string_option(&buf->b_p_cino); 2218 #endif 2219 #if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) 2220 clear_string_option(&buf->b_p_cinw); 2221 #endif 2222 #ifdef FEAT_INS_EXPAND 2223 clear_string_option(&buf->b_p_cpt); 2224 #endif 2225 #ifdef FEAT_COMPL_FUNC 2226 clear_string_option(&buf->b_p_cfu); 2227 clear_string_option(&buf->b_p_ofu); 2228 #endif 2229 #ifdef FEAT_QUICKFIX 2230 clear_string_option(&buf->b_p_gp); 2231 clear_string_option(&buf->b_p_mp); 2232 clear_string_option(&buf->b_p_efm); 2233 #endif 2234 clear_string_option(&buf->b_p_ep); 2235 clear_string_option(&buf->b_p_path); 2236 clear_string_option(&buf->b_p_tags); 2237 clear_string_option(&buf->b_p_tc); 2238 #ifdef FEAT_EVAL 2239 clear_string_option(&buf->b_p_tfu); 2240 #endif 2241 #ifdef FEAT_INS_EXPAND 2242 clear_string_option(&buf->b_p_dict); 2243 clear_string_option(&buf->b_p_tsr); 2244 #endif 2245 #ifdef FEAT_TEXTOBJ 2246 clear_string_option(&buf->b_p_qe); 2247 #endif 2248 buf->b_p_ar = -1; 2249 buf->b_p_ul = NO_LOCAL_UNDOLEVEL; 2250 #ifdef FEAT_LISP 2251 clear_string_option(&buf->b_p_lw); 2252 #endif 2253 clear_string_option(&buf->b_p_bkc); 2254 clear_string_option(&buf->b_p_menc); 2255 } 2256 2257 /* 2258 * Get alternate file "n". 2259 * Set linenr to "lnum" or altfpos.lnum if "lnum" == 0. 2260 * Also set cursor column to altfpos.col if 'startofline' is not set. 2261 * if (options & GETF_SETMARK) call setpcmark() 2262 * if (options & GETF_ALT) we are jumping to an alternate file. 2263 * if (options & GETF_SWITCH) respect 'switchbuf' settings when jumping 2264 * 2265 * Return FAIL for failure, OK for success. 2266 */ 2267 int 2268 buflist_getfile( 2269 int n, 2270 linenr_T lnum, 2271 int options, 2272 int forceit) 2273 { 2274 buf_T *buf; 2275 win_T *wp = NULL; 2276 pos_T *fpos; 2277 colnr_T col; 2278 2279 buf = buflist_findnr(n); 2280 if (buf == NULL) 2281 { 2282 if ((options & GETF_ALT) && n == 0) 2283 emsg(_(e_noalt)); 2284 else 2285 semsg(_("E92: Buffer %d not found"), n); 2286 return FAIL; 2287 } 2288 2289 /* if alternate file is the current buffer, nothing to do */ 2290 if (buf == curbuf) 2291 return OK; 2292 2293 if (text_locked()) 2294 { 2295 text_locked_msg(); 2296 return FAIL; 2297 } 2298 if (curbuf_locked()) 2299 return FAIL; 2300 2301 /* altfpos may be changed by getfile(), get it now */ 2302 if (lnum == 0) 2303 { 2304 fpos = buflist_findfpos(buf); 2305 lnum = fpos->lnum; 2306 col = fpos->col; 2307 } 2308 else 2309 col = 0; 2310 2311 if (options & GETF_SWITCH) 2312 { 2313 /* If 'switchbuf' contains "useopen": jump to first window containing 2314 * "buf" if one exists */ 2315 if (swb_flags & SWB_USEOPEN) 2316 wp = buf_jump_open_win(buf); 2317 2318 /* If 'switchbuf' contains "usetab": jump to first window in any tab 2319 * page containing "buf" if one exists */ 2320 if (wp == NULL && (swb_flags & SWB_USETAB)) 2321 wp = buf_jump_open_tab(buf); 2322 2323 /* If 'switchbuf' contains "split", "vsplit" or "newtab" and the 2324 * current buffer isn't empty: open new tab or window */ 2325 if (wp == NULL && (swb_flags & (SWB_VSPLIT | SWB_SPLIT | SWB_NEWTAB)) 2326 && !BUFEMPTY()) 2327 { 2328 if (swb_flags & SWB_NEWTAB) 2329 tabpage_new(); 2330 else if (win_split(0, (swb_flags & SWB_VSPLIT) ? WSP_VERT : 0) 2331 == FAIL) 2332 return FAIL; 2333 RESET_BINDING(curwin); 2334 } 2335 } 2336 2337 ++RedrawingDisabled; 2338 if (GETFILE_SUCCESS(getfile(buf->b_fnum, NULL, NULL, 2339 (options & GETF_SETMARK), lnum, forceit))) 2340 { 2341 --RedrawingDisabled; 2342 2343 /* cursor is at to BOL and w_cursor.lnum is checked due to getfile() */ 2344 if (!p_sol && col != 0) 2345 { 2346 curwin->w_cursor.col = col; 2347 check_cursor_col(); 2348 curwin->w_cursor.coladd = 0; 2349 curwin->w_set_curswant = TRUE; 2350 } 2351 return OK; 2352 } 2353 --RedrawingDisabled; 2354 return FAIL; 2355 } 2356 2357 /* 2358 * go to the last know line number for the current buffer 2359 */ 2360 void 2361 buflist_getfpos(void) 2362 { 2363 pos_T *fpos; 2364 2365 fpos = buflist_findfpos(curbuf); 2366 2367 curwin->w_cursor.lnum = fpos->lnum; 2368 check_cursor_lnum(); 2369 2370 if (p_sol) 2371 curwin->w_cursor.col = 0; 2372 else 2373 { 2374 curwin->w_cursor.col = fpos->col; 2375 check_cursor_col(); 2376 curwin->w_cursor.coladd = 0; 2377 curwin->w_set_curswant = TRUE; 2378 } 2379 } 2380 2381 #if defined(FEAT_QUICKFIX) || defined(FEAT_EVAL) || defined(PROTO) 2382 /* 2383 * Find file in buffer list by name (it has to be for the current window). 2384 * Returns NULL if not found. 2385 */ 2386 buf_T * 2387 buflist_findname_exp(char_u *fname) 2388 { 2389 char_u *ffname; 2390 buf_T *buf = NULL; 2391 2392 /* First make the name into a full path name */ 2393 ffname = FullName_save(fname, 2394 #ifdef UNIX 2395 TRUE /* force expansion, get rid of symbolic links */ 2396 #else 2397 FALSE 2398 #endif 2399 ); 2400 if (ffname != NULL) 2401 { 2402 buf = buflist_findname(ffname); 2403 vim_free(ffname); 2404 } 2405 return buf; 2406 } 2407 #endif 2408 2409 /* 2410 * Find file in buffer list by name (it has to be for the current window). 2411 * "ffname" must have a full path. 2412 * Skips dummy buffers. 2413 * Returns NULL if not found. 2414 */ 2415 buf_T * 2416 buflist_findname(char_u *ffname) 2417 { 2418 #ifdef UNIX 2419 stat_T st; 2420 2421 if (mch_stat((char *)ffname, &st) < 0) 2422 st.st_dev = (dev_T)-1; 2423 return buflist_findname_stat(ffname, &st); 2424 } 2425 2426 /* 2427 * Same as buflist_findname(), but pass the stat structure to avoid getting it 2428 * twice for the same file. 2429 * Returns NULL if not found. 2430 */ 2431 static buf_T * 2432 buflist_findname_stat( 2433 char_u *ffname, 2434 stat_T *stp) 2435 { 2436 #endif 2437 buf_T *buf; 2438 2439 /* Start at the last buffer, expect to find a match sooner. */ 2440 for (buf = lastbuf; buf != NULL; buf = buf->b_prev) 2441 if ((buf->b_flags & BF_DUMMY) == 0 && !otherfile_buf(buf, ffname 2442 #ifdef UNIX 2443 , stp 2444 #endif 2445 )) 2446 return buf; 2447 return NULL; 2448 } 2449 2450 /* 2451 * Find file in buffer list by a regexp pattern. 2452 * Return fnum of the found buffer. 2453 * Return < 0 for error. 2454 */ 2455 int 2456 buflist_findpat( 2457 char_u *pattern, 2458 char_u *pattern_end, /* pointer to first char after pattern */ 2459 int unlisted, /* find unlisted buffers */ 2460 int diffmode UNUSED, /* find diff-mode buffers only */ 2461 int curtab_only) /* find buffers in current tab only */ 2462 { 2463 buf_T *buf; 2464 int match = -1; 2465 int find_listed; 2466 char_u *pat; 2467 char_u *patend; 2468 int attempt; 2469 char_u *p; 2470 int toggledollar; 2471 2472 if (pattern_end == pattern + 1 && (*pattern == '%' || *pattern == '#')) 2473 { 2474 if (*pattern == '%') 2475 match = curbuf->b_fnum; 2476 else 2477 match = curwin->w_alt_fnum; 2478 #ifdef FEAT_DIFF 2479 if (diffmode && !diff_mode_buf(buflist_findnr(match))) 2480 match = -1; 2481 #endif 2482 } 2483 2484 /* 2485 * Try four ways of matching a listed buffer: 2486 * attempt == 0: without '^' or '$' (at any position) 2487 * attempt == 1: with '^' at start (only at position 0) 2488 * attempt == 2: with '$' at end (only match at end) 2489 * attempt == 3: with '^' at start and '$' at end (only full match) 2490 * Repeat this for finding an unlisted buffer if there was no matching 2491 * listed buffer. 2492 */ 2493 else 2494 { 2495 pat = file_pat_to_reg_pat(pattern, pattern_end, NULL, FALSE); 2496 if (pat == NULL) 2497 return -1; 2498 patend = pat + STRLEN(pat) - 1; 2499 toggledollar = (patend > pat && *patend == '$'); 2500 2501 /* First try finding a listed buffer. If not found and "unlisted" 2502 * is TRUE, try finding an unlisted buffer. */ 2503 find_listed = TRUE; 2504 for (;;) 2505 { 2506 for (attempt = 0; attempt <= 3; ++attempt) 2507 { 2508 regmatch_T regmatch; 2509 2510 /* may add '^' and '$' */ 2511 if (toggledollar) 2512 *patend = (attempt < 2) ? NUL : '$'; /* add/remove '$' */ 2513 p = pat; 2514 if (*p == '^' && !(attempt & 1)) /* add/remove '^' */ 2515 ++p; 2516 regmatch.regprog = vim_regcomp(p, p_magic ? RE_MAGIC : 0); 2517 if (regmatch.regprog == NULL) 2518 { 2519 vim_free(pat); 2520 return -1; 2521 } 2522 2523 for (buf = lastbuf; buf != NULL; buf = buf->b_prev) 2524 if (buf->b_p_bl == find_listed 2525 #ifdef FEAT_DIFF 2526 && (!diffmode || diff_mode_buf(buf)) 2527 #endif 2528 && buflist_match(®match, buf, FALSE) != NULL) 2529 { 2530 if (curtab_only) 2531 { 2532 /* Ignore the match if the buffer is not open in 2533 * the current tab. */ 2534 win_T *wp; 2535 2536 FOR_ALL_WINDOWS(wp) 2537 if (wp->w_buffer == buf) 2538 break; 2539 if (wp == NULL) 2540 continue; 2541 } 2542 if (match >= 0) /* already found a match */ 2543 { 2544 match = -2; 2545 break; 2546 } 2547 match = buf->b_fnum; /* remember first match */ 2548 } 2549 2550 vim_regfree(regmatch.regprog); 2551 if (match >= 0) /* found one match */ 2552 break; 2553 } 2554 2555 /* Only search for unlisted buffers if there was no match with 2556 * a listed buffer. */ 2557 if (!unlisted || !find_listed || match != -1) 2558 break; 2559 find_listed = FALSE; 2560 } 2561 2562 vim_free(pat); 2563 } 2564 2565 if (match == -2) 2566 semsg(_("E93: More than one match for %s"), pattern); 2567 else if (match < 0) 2568 semsg(_("E94: No matching buffer for %s"), pattern); 2569 return match; 2570 } 2571 2572 #if defined(FEAT_CMDL_COMPL) || defined(PROTO) 2573 2574 /* 2575 * Find all buffer names that match. 2576 * For command line expansion of ":buf" and ":sbuf". 2577 * Return OK if matches found, FAIL otherwise. 2578 */ 2579 int 2580 ExpandBufnames( 2581 char_u *pat, 2582 int *num_file, 2583 char_u ***file, 2584 int options) 2585 { 2586 int count = 0; 2587 buf_T *buf; 2588 int round; 2589 char_u *p; 2590 int attempt; 2591 char_u *patc; 2592 2593 *num_file = 0; /* return values in case of FAIL */ 2594 *file = NULL; 2595 2596 /* Make a copy of "pat" and change "^" to "\(^\|[\/]\)". */ 2597 if (*pat == '^') 2598 { 2599 patc = alloc(STRLEN(pat) + 11); 2600 if (patc == NULL) 2601 return FAIL; 2602 STRCPY(patc, "\\(^\\|[\\/]\\)"); 2603 STRCPY(patc + 11, pat + 1); 2604 } 2605 else 2606 patc = pat; 2607 2608 /* 2609 * attempt == 0: try match with '\<', match at start of word 2610 * attempt == 1: try match without '\<', match anywhere 2611 */ 2612 for (attempt = 0; attempt <= 1; ++attempt) 2613 { 2614 regmatch_T regmatch; 2615 2616 if (attempt > 0 && patc == pat) 2617 break; /* there was no anchor, no need to try again */ 2618 regmatch.regprog = vim_regcomp(patc + attempt * 11, RE_MAGIC); 2619 if (regmatch.regprog == NULL) 2620 { 2621 if (patc != pat) 2622 vim_free(patc); 2623 return FAIL; 2624 } 2625 2626 /* 2627 * round == 1: Count the matches. 2628 * round == 2: Build the array to keep the matches. 2629 */ 2630 for (round = 1; round <= 2; ++round) 2631 { 2632 count = 0; 2633 FOR_ALL_BUFFERS(buf) 2634 { 2635 if (!buf->b_p_bl) /* skip unlisted buffers */ 2636 continue; 2637 p = buflist_match(®match, buf, p_wic); 2638 if (p != NULL) 2639 { 2640 if (round == 1) 2641 ++count; 2642 else 2643 { 2644 if (options & WILD_HOME_REPLACE) 2645 p = home_replace_save(buf, p); 2646 else 2647 p = vim_strsave(p); 2648 (*file)[count++] = p; 2649 } 2650 } 2651 } 2652 if (count == 0) /* no match found, break here */ 2653 break; 2654 if (round == 1) 2655 { 2656 *file = ALLOC_MULT(char_u *, count); 2657 if (*file == NULL) 2658 { 2659 vim_regfree(regmatch.regprog); 2660 if (patc != pat) 2661 vim_free(patc); 2662 return FAIL; 2663 } 2664 } 2665 } 2666 vim_regfree(regmatch.regprog); 2667 if (count) /* match(es) found, break here */ 2668 break; 2669 } 2670 2671 if (patc != pat) 2672 vim_free(patc); 2673 2674 *num_file = count; 2675 return (count == 0 ? FAIL : OK); 2676 } 2677 2678 #endif /* FEAT_CMDL_COMPL */ 2679 2680 /* 2681 * Check for a match on the file name for buffer "buf" with regprog "prog". 2682 */ 2683 static char_u * 2684 buflist_match( 2685 regmatch_T *rmp, 2686 buf_T *buf, 2687 int ignore_case) /* when TRUE ignore case, when FALSE use 'fic' */ 2688 { 2689 char_u *match; 2690 2691 /* First try the short file name, then the long file name. */ 2692 match = fname_match(rmp, buf->b_sfname, ignore_case); 2693 if (match == NULL) 2694 match = fname_match(rmp, buf->b_ffname, ignore_case); 2695 2696 return match; 2697 } 2698 2699 /* 2700 * Try matching the regexp in "prog" with file name "name". 2701 * Return "name" when there is a match, NULL when not. 2702 */ 2703 static char_u * 2704 fname_match( 2705 regmatch_T *rmp, 2706 char_u *name, 2707 int ignore_case) /* when TRUE ignore case, when FALSE use 'fic' */ 2708 { 2709 char_u *match = NULL; 2710 char_u *p; 2711 2712 if (name != NULL) 2713 { 2714 /* Ignore case when 'fileignorecase' or the argument is set. */ 2715 rmp->rm_ic = p_fic || ignore_case; 2716 if (vim_regexec(rmp, name, (colnr_T)0)) 2717 match = name; 2718 else 2719 { 2720 /* Replace $(HOME) with '~' and try matching again. */ 2721 p = home_replace_save(NULL, name); 2722 if (p != NULL && vim_regexec(rmp, p, (colnr_T)0)) 2723 match = name; 2724 vim_free(p); 2725 } 2726 } 2727 2728 return match; 2729 } 2730 2731 /* 2732 * Find a file in the buffer list by buffer number. 2733 */ 2734 buf_T * 2735 buflist_findnr(int nr) 2736 { 2737 char_u key[VIM_SIZEOF_INT * 2 + 1]; 2738 hashitem_T *hi; 2739 2740 if (nr == 0) 2741 nr = curwin->w_alt_fnum; 2742 sprintf((char *)key, "%x", nr); 2743 hi = hash_find(&buf_hashtab, key); 2744 2745 if (!HASHITEM_EMPTY(hi)) 2746 return (buf_T *)(hi->hi_key 2747 - ((unsigned)(curbuf->b_key - (char_u *)curbuf))); 2748 return NULL; 2749 } 2750 2751 /* 2752 * Get name of file 'n' in the buffer list. 2753 * When the file has no name an empty string is returned. 2754 * home_replace() is used to shorten the file name (used for marks). 2755 * Returns a pointer to allocated memory, of NULL when failed. 2756 */ 2757 char_u * 2758 buflist_nr2name( 2759 int n, 2760 int fullname, 2761 int helptail) /* for help buffers return tail only */ 2762 { 2763 buf_T *buf; 2764 2765 buf = buflist_findnr(n); 2766 if (buf == NULL) 2767 return NULL; 2768 return home_replace_save(helptail ? buf : NULL, 2769 fullname ? buf->b_ffname : buf->b_fname); 2770 } 2771 2772 /* 2773 * Set the "lnum" and "col" for the buffer "buf" and the current window. 2774 * When "copy_options" is TRUE save the local window option values. 2775 * When "lnum" is 0 only do the options. 2776 */ 2777 static void 2778 buflist_setfpos( 2779 buf_T *buf, 2780 win_T *win, 2781 linenr_T lnum, 2782 colnr_T col, 2783 int copy_options) 2784 { 2785 wininfo_T *wip; 2786 2787 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2788 if (wip->wi_win == win) 2789 break; 2790 if (wip == NULL) 2791 { 2792 /* allocate a new entry */ 2793 wip = ALLOC_CLEAR_ONE(wininfo_T); 2794 if (wip == NULL) 2795 return; 2796 wip->wi_win = win; 2797 if (lnum == 0) /* set lnum even when it's 0 */ 2798 lnum = 1; 2799 } 2800 else 2801 { 2802 /* remove the entry from the list */ 2803 if (wip->wi_prev) 2804 wip->wi_prev->wi_next = wip->wi_next; 2805 else 2806 buf->b_wininfo = wip->wi_next; 2807 if (wip->wi_next) 2808 wip->wi_next->wi_prev = wip->wi_prev; 2809 if (copy_options && wip->wi_optset) 2810 { 2811 clear_winopt(&wip->wi_opt); 2812 #ifdef FEAT_FOLDING 2813 deleteFoldRecurse(&wip->wi_folds); 2814 #endif 2815 } 2816 } 2817 if (lnum != 0) 2818 { 2819 wip->wi_fpos.lnum = lnum; 2820 wip->wi_fpos.col = col; 2821 } 2822 if (copy_options) 2823 { 2824 /* Save the window-specific option values. */ 2825 copy_winopt(&win->w_onebuf_opt, &wip->wi_opt); 2826 #ifdef FEAT_FOLDING 2827 wip->wi_fold_manual = win->w_fold_manual; 2828 cloneFoldGrowArray(&win->w_folds, &wip->wi_folds); 2829 #endif 2830 wip->wi_optset = TRUE; 2831 } 2832 2833 /* insert the entry in front of the list */ 2834 wip->wi_next = buf->b_wininfo; 2835 buf->b_wininfo = wip; 2836 wip->wi_prev = NULL; 2837 if (wip->wi_next) 2838 wip->wi_next->wi_prev = wip; 2839 2840 return; 2841 } 2842 2843 #ifdef FEAT_DIFF 2844 /* 2845 * Return TRUE when "wip" has 'diff' set and the diff is only for another tab 2846 * page. That's because a diff is local to a tab page. 2847 */ 2848 static int 2849 wininfo_other_tab_diff(wininfo_T *wip) 2850 { 2851 win_T *wp; 2852 2853 if (wip->wi_opt.wo_diff) 2854 { 2855 FOR_ALL_WINDOWS(wp) 2856 /* return FALSE when it's a window in the current tab page, thus 2857 * the buffer was in diff mode here */ 2858 if (wip->wi_win == wp) 2859 return FALSE; 2860 return TRUE; 2861 } 2862 return FALSE; 2863 } 2864 #endif 2865 2866 /* 2867 * Find info for the current window in buffer "buf". 2868 * If not found, return the info for the most recently used window. 2869 * When "skip_diff_buffer" is TRUE avoid windows with 'diff' set that is in 2870 * another tab page. 2871 * Returns NULL when there isn't any info. 2872 */ 2873 static wininfo_T * 2874 find_wininfo( 2875 buf_T *buf, 2876 int skip_diff_buffer UNUSED) 2877 { 2878 wininfo_T *wip; 2879 2880 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2881 if (wip->wi_win == curwin 2882 #ifdef FEAT_DIFF 2883 && (!skip_diff_buffer || !wininfo_other_tab_diff(wip)) 2884 #endif 2885 ) 2886 break; 2887 2888 /* If no wininfo for curwin, use the first in the list (that doesn't have 2889 * 'diff' set and is in another tab page). */ 2890 if (wip == NULL) 2891 { 2892 #ifdef FEAT_DIFF 2893 if (skip_diff_buffer) 2894 { 2895 for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) 2896 if (!wininfo_other_tab_diff(wip)) 2897 break; 2898 } 2899 else 2900 #endif 2901 wip = buf->b_wininfo; 2902 } 2903 return wip; 2904 } 2905 2906 /* 2907 * Reset the local window options to the values last used in this window. 2908 * If the buffer wasn't used in this window before, use the values from 2909 * the most recently used window. If the values were never set, use the 2910 * global values for the window. 2911 */ 2912 void 2913 get_winopts(buf_T *buf) 2914 { 2915 wininfo_T *wip; 2916 2917 clear_winopt(&curwin->w_onebuf_opt); 2918 #ifdef FEAT_FOLDING 2919 clearFolding(curwin); 2920 #endif 2921 2922 wip = find_wininfo(buf, TRUE); 2923 if (wip != NULL && wip->wi_win != NULL 2924 && wip->wi_win != curwin && wip->wi_win->w_buffer == buf) 2925 { 2926 /* The buffer is currently displayed in the window: use the actual 2927 * option values instead of the saved (possibly outdated) values. */ 2928 win_T *wp = wip->wi_win; 2929 2930 copy_winopt(&wp->w_onebuf_opt, &curwin->w_onebuf_opt); 2931 #ifdef FEAT_FOLDING 2932 curwin->w_fold_manual = wp->w_fold_manual; 2933 curwin->w_foldinvalid = TRUE; 2934 cloneFoldGrowArray(&wp->w_folds, &curwin->w_folds); 2935 #endif 2936 } 2937 else if (wip != NULL && wip->wi_optset) 2938 { 2939 /* the buffer was displayed in the current window earlier */ 2940 copy_winopt(&wip->wi_opt, &curwin->w_onebuf_opt); 2941 #ifdef FEAT_FOLDING 2942 curwin->w_fold_manual = wip->wi_fold_manual; 2943 curwin->w_foldinvalid = TRUE; 2944 cloneFoldGrowArray(&wip->wi_folds, &curwin->w_folds); 2945 #endif 2946 } 2947 else 2948 copy_winopt(&curwin->w_allbuf_opt, &curwin->w_onebuf_opt); 2949 2950 #ifdef FEAT_FOLDING 2951 /* Set 'foldlevel' to 'foldlevelstart' if it's not negative. */ 2952 if (p_fdls >= 0) 2953 curwin->w_p_fdl = p_fdls; 2954 #endif 2955 #ifdef FEAT_SYN_HL 2956 check_colorcolumn(curwin); 2957 #endif 2958 } 2959 2960 /* 2961 * Find the position (lnum and col) for the buffer 'buf' for the current 2962 * window. 2963 * Returns a pointer to no_position if no position is found. 2964 */ 2965 pos_T * 2966 buflist_findfpos(buf_T *buf) 2967 { 2968 wininfo_T *wip; 2969 static pos_T no_position = {1, 0, 0}; 2970 2971 wip = find_wininfo(buf, FALSE); 2972 if (wip != NULL) 2973 return &(wip->wi_fpos); 2974 else 2975 return &no_position; 2976 } 2977 2978 /* 2979 * Find the lnum for the buffer 'buf' for the current window. 2980 */ 2981 linenr_T 2982 buflist_findlnum(buf_T *buf) 2983 { 2984 return buflist_findfpos(buf)->lnum; 2985 } 2986 2987 /* 2988 * List all known file names (for :files and :buffers command). 2989 */ 2990 void 2991 buflist_list(exarg_T *eap) 2992 { 2993 buf_T *buf; 2994 int len; 2995 int i; 2996 int ro_char; 2997 int changed_char; 2998 #ifdef FEAT_TERMINAL 2999 int job_running; 3000 int job_none_open; 3001 #endif 3002 3003 for (buf = firstbuf; buf != NULL && !got_int; buf = buf->b_next) 3004 { 3005 #ifdef FEAT_TERMINAL 3006 job_running = term_job_running(buf->b_term); 3007 job_none_open = job_running && term_none_open(buf->b_term); 3008 #endif 3009 /* skip unlisted buffers, unless ! was used */ 3010 if ((!buf->b_p_bl && !eap->forceit && !vim_strchr(eap->arg, 'u')) 3011 || (vim_strchr(eap->arg, 'u') && buf->b_p_bl) 3012 || (vim_strchr(eap->arg, '+') 3013 && ((buf->b_flags & BF_READERR) || !bufIsChanged(buf))) 3014 || (vim_strchr(eap->arg, 'a') 3015 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows == 0)) 3016 || (vim_strchr(eap->arg, 'h') 3017 && (buf->b_ml.ml_mfp == NULL || buf->b_nwindows != 0)) 3018 #ifdef FEAT_TERMINAL 3019 || (vim_strchr(eap->arg, 'R') 3020 && (!job_running || (job_running && job_none_open))) 3021 || (vim_strchr(eap->arg, '?') 3022 && (!job_running || (job_running && !job_none_open))) 3023 || (vim_strchr(eap->arg, 'F') 3024 && (job_running || buf->b_term == NULL)) 3025 #endif 3026 || (vim_strchr(eap->arg, '-') && buf->b_p_ma) 3027 || (vim_strchr(eap->arg, '=') && !buf->b_p_ro) 3028 || (vim_strchr(eap->arg, 'x') && !(buf->b_flags & BF_READERR)) 3029 || (vim_strchr(eap->arg, '%') && buf != curbuf) 3030 || (vim_strchr(eap->arg, '#') 3031 && (buf == curbuf || curwin->w_alt_fnum != buf->b_fnum))) 3032 continue; 3033 if (buf_spname(buf) != NULL) 3034 vim_strncpy(NameBuff, buf_spname(buf), MAXPATHL - 1); 3035 else 3036 home_replace(buf, buf->b_fname, NameBuff, MAXPATHL, TRUE); 3037 if (message_filtered(NameBuff)) 3038 continue; 3039 3040 changed_char = (buf->b_flags & BF_READERR) ? 'x' 3041 : (bufIsChanged(buf) ? '+' : ' '); 3042 #ifdef FEAT_TERMINAL 3043 if (term_job_running(buf->b_term)) 3044 { 3045 if (term_none_open(buf->b_term)) 3046 ro_char = '?'; 3047 else 3048 ro_char = 'R'; 3049 changed_char = ' '; /* bufIsChanged() returns TRUE to avoid 3050 * closing, but it's not actually changed. */ 3051 } 3052 else if (buf->b_term != NULL) 3053 ro_char = 'F'; 3054 else 3055 #endif 3056 ro_char = !buf->b_p_ma ? '-' : (buf->b_p_ro ? '=' : ' '); 3057 3058 msg_putchar('\n'); 3059 len = vim_snprintf((char *)IObuff, IOSIZE - 20, "%3d%c%c%c%c%c \"%s\"", 3060 buf->b_fnum, 3061 buf->b_p_bl ? ' ' : 'u', 3062 buf == curbuf ? '%' : 3063 (curwin->w_alt_fnum == buf->b_fnum ? '#' : ' '), 3064 buf->b_ml.ml_mfp == NULL ? ' ' : 3065 (buf->b_nwindows == 0 ? 'h' : 'a'), 3066 ro_char, 3067 changed_char, 3068 NameBuff); 3069 if (len > IOSIZE - 20) 3070 len = IOSIZE - 20; 3071 3072 /* put "line 999" in column 40 or after the file name */ 3073 i = 40 - vim_strsize(IObuff); 3074 do 3075 IObuff[len++] = ' '; 3076 while (--i > 0 && len < IOSIZE - 18); 3077 vim_snprintf((char *)IObuff + len, (size_t)(IOSIZE - len), 3078 _("line %ld"), buf == curbuf ? curwin->w_cursor.lnum 3079 : (long)buflist_findlnum(buf)); 3080 msg_outtrans(IObuff); 3081 out_flush(); /* output one line at a time */ 3082 ui_breakcheck(); 3083 } 3084 } 3085 3086 /* 3087 * Get file name and line number for file 'fnum'. 3088 * Used by DoOneCmd() for translating '%' and '#'. 3089 * Used by insert_reg() and cmdline_paste() for '#' register. 3090 * Return FAIL if not found, OK for success. 3091 */ 3092 int 3093 buflist_name_nr( 3094 int fnum, 3095 char_u **fname, 3096 linenr_T *lnum) 3097 { 3098 buf_T *buf; 3099 3100 buf = buflist_findnr(fnum); 3101 if (buf == NULL || buf->b_fname == NULL) 3102 return FAIL; 3103 3104 *fname = buf->b_fname; 3105 *lnum = buflist_findlnum(buf); 3106 3107 return OK; 3108 } 3109 3110 /* 3111 * Set the file name for "buf"' to "ffname_arg", short file name to 3112 * "sfname_arg". 3113 * The file name with the full path is also remembered, for when :cd is used. 3114 * Returns FAIL for failure (file name already in use by other buffer) 3115 * OK otherwise. 3116 */ 3117 int 3118 setfname( 3119 buf_T *buf, 3120 char_u *ffname_arg, 3121 char_u *sfname_arg, 3122 int message) /* give message when buffer already exists */ 3123 { 3124 char_u *ffname = ffname_arg; 3125 char_u *sfname = sfname_arg; 3126 buf_T *obuf = NULL; 3127 #ifdef UNIX 3128 stat_T st; 3129 #endif 3130 3131 if (ffname == NULL || *ffname == NUL) 3132 { 3133 /* Removing the name. */ 3134 if (buf->b_sfname != buf->b_ffname) 3135 VIM_CLEAR(buf->b_sfname); 3136 else 3137 buf->b_sfname = NULL; 3138 VIM_CLEAR(buf->b_ffname); 3139 #ifdef UNIX 3140 st.st_dev = (dev_T)-1; 3141 #endif 3142 } 3143 else 3144 { 3145 fname_expand(buf, &ffname, &sfname); /* will allocate ffname */ 3146 if (ffname == NULL) /* out of memory */ 3147 return FAIL; 3148 3149 /* 3150 * if the file name is already used in another buffer: 3151 * - if the buffer is loaded, fail 3152 * - if the buffer is not loaded, delete it from the list 3153 */ 3154 #ifdef UNIX 3155 if (mch_stat((char *)ffname, &st) < 0) 3156 st.st_dev = (dev_T)-1; 3157 #endif 3158 if (!(buf->b_flags & BF_DUMMY)) 3159 #ifdef UNIX 3160 obuf = buflist_findname_stat(ffname, &st); 3161 #else 3162 obuf = buflist_findname(ffname); 3163 #endif 3164 if (obuf != NULL && obuf != buf) 3165 { 3166 if (obuf->b_ml.ml_mfp != NULL) /* it's loaded, fail */ 3167 { 3168 if (message) 3169 emsg(_("E95: Buffer with this name already exists")); 3170 vim_free(ffname); 3171 return FAIL; 3172 } 3173 /* delete from the list */ 3174 close_buffer(NULL, obuf, DOBUF_WIPE, FALSE); 3175 } 3176 sfname = vim_strsave(sfname); 3177 if (ffname == NULL || sfname == NULL) 3178 { 3179 vim_free(sfname); 3180 vim_free(ffname); 3181 return FAIL; 3182 } 3183 #ifdef USE_FNAME_CASE 3184 fname_case(sfname, 0); /* set correct case for short file name */ 3185 #endif 3186 if (buf->b_sfname != buf->b_ffname) 3187 vim_free(buf->b_sfname); 3188 vim_free(buf->b_ffname); 3189 buf->b_ffname = ffname; 3190 buf->b_sfname = sfname; 3191 } 3192 buf->b_fname = buf->b_sfname; 3193 #ifdef UNIX 3194 if (st.st_dev == (dev_T)-1) 3195 buf->b_dev_valid = FALSE; 3196 else 3197 { 3198 buf->b_dev_valid = TRUE; 3199 buf->b_dev = st.st_dev; 3200 buf->b_ino = st.st_ino; 3201 } 3202 #endif 3203 3204 buf->b_shortname = FALSE; 3205 3206 buf_name_changed(buf); 3207 return OK; 3208 } 3209 3210 /* 3211 * Crude way of changing the name of a buffer. Use with care! 3212 * The name should be relative to the current directory. 3213 */ 3214 void 3215 buf_set_name(int fnum, char_u *name) 3216 { 3217 buf_T *buf; 3218 3219 buf = buflist_findnr(fnum); 3220 if (buf != NULL) 3221 { 3222 if (buf->b_sfname != buf->b_ffname) 3223 vim_free(buf->b_sfname); 3224 vim_free(buf->b_ffname); 3225 buf->b_ffname = vim_strsave(name); 3226 buf->b_sfname = NULL; 3227 /* Allocate ffname and expand into full path. Also resolves .lnk 3228 * files on Win32. */ 3229 fname_expand(buf, &buf->b_ffname, &buf->b_sfname); 3230 buf->b_fname = buf->b_sfname; 3231 } 3232 } 3233 3234 /* 3235 * Take care of what needs to be done when the name of buffer "buf" has 3236 * changed. 3237 */ 3238 void 3239 buf_name_changed(buf_T *buf) 3240 { 3241 /* 3242 * If the file name changed, also change the name of the swapfile 3243 */ 3244 if (buf->b_ml.ml_mfp != NULL) 3245 ml_setname(buf); 3246 3247 if (curwin->w_buffer == buf) 3248 check_arg_idx(curwin); /* check file name for arg list */ 3249 #ifdef FEAT_TITLE 3250 maketitle(); /* set window title */ 3251 #endif 3252 status_redraw_all(); /* status lines need to be redrawn */ 3253 fmarks_check_names(buf); /* check named file marks */ 3254 ml_timestamp(buf); /* reset timestamp */ 3255 } 3256 3257 /* 3258 * set alternate file name for current window 3259 * 3260 * Used by do_one_cmd(), do_write() and do_ecmd(). 3261 * Return the buffer. 3262 */ 3263 buf_T * 3264 setaltfname( 3265 char_u *ffname, 3266 char_u *sfname, 3267 linenr_T lnum) 3268 { 3269 buf_T *buf; 3270 3271 /* Create a buffer. 'buflisted' is not set if it's a new buffer */ 3272 buf = buflist_new(ffname, sfname, lnum, 0); 3273 if (buf != NULL && !cmdmod.keepalt) 3274 curwin->w_alt_fnum = buf->b_fnum; 3275 return buf; 3276 } 3277 3278 /* 3279 * Get alternate file name for current window. 3280 * Return NULL if there isn't any, and give error message if requested. 3281 */ 3282 char_u * 3283 getaltfname( 3284 int errmsg) /* give error message */ 3285 { 3286 char_u *fname; 3287 linenr_T dummy; 3288 3289 if (buflist_name_nr(0, &fname, &dummy) == FAIL) 3290 { 3291 if (errmsg) 3292 emsg(_(e_noalt)); 3293 return NULL; 3294 } 3295 return fname; 3296 } 3297 3298 /* 3299 * Add a file name to the buflist and return its number. 3300 * Uses same flags as buflist_new(), except BLN_DUMMY. 3301 * 3302 * used by qf_init(), main() and doarglist() 3303 */ 3304 int 3305 buflist_add(char_u *fname, int flags) 3306 { 3307 buf_T *buf; 3308 3309 buf = buflist_new(fname, NULL, (linenr_T)0, flags); 3310 if (buf != NULL) 3311 return buf->b_fnum; 3312 return 0; 3313 } 3314 3315 #if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) 3316 /* 3317 * Adjust slashes in file names. Called after 'shellslash' was set. 3318 */ 3319 void 3320 buflist_slash_adjust(void) 3321 { 3322 buf_T *bp; 3323 3324 FOR_ALL_BUFFERS(bp) 3325 { 3326 if (bp->b_ffname != NULL) 3327 slash_adjust(bp->b_ffname); 3328 if (bp->b_sfname != NULL) 3329 slash_adjust(bp->b_sfname); 3330 } 3331 } 3332 #endif 3333 3334 /* 3335 * Set alternate cursor position for the current buffer and window "win". 3336 * Also save the local window option values. 3337 */ 3338 void 3339 buflist_altfpos(win_T *win) 3340 { 3341 buflist_setfpos(curbuf, win, win->w_cursor.lnum, win->w_cursor.col, TRUE); 3342 } 3343 3344 /* 3345 * Return TRUE if 'ffname' is not the same file as current file. 3346 * Fname must have a full path (expanded by mch_FullName()). 3347 */ 3348 int 3349 otherfile(char_u *ffname) 3350 { 3351 return otherfile_buf(curbuf, ffname 3352 #ifdef UNIX 3353 , NULL 3354 #endif 3355 ); 3356 } 3357 3358 static int 3359 otherfile_buf( 3360 buf_T *buf, 3361 char_u *ffname 3362 #ifdef UNIX 3363 , stat_T *stp 3364 #endif 3365 ) 3366 { 3367 /* no name is different */ 3368 if (ffname == NULL || *ffname == NUL || buf->b_ffname == NULL) 3369 return TRUE; 3370 if (fnamecmp(ffname, buf->b_ffname) == 0) 3371 return FALSE; 3372 #ifdef UNIX 3373 { 3374 stat_T st; 3375 3376 /* If no stat_T given, get it now */ 3377 if (stp == NULL) 3378 { 3379 if (!buf->b_dev_valid || mch_stat((char *)ffname, &st) < 0) 3380 st.st_dev = (dev_T)-1; 3381 stp = &st; 3382 } 3383 /* Use dev/ino to check if the files are the same, even when the names 3384 * are different (possible with links). Still need to compare the 3385 * name above, for when the file doesn't exist yet. 3386 * Problem: The dev/ino changes when a file is deleted (and created 3387 * again) and remains the same when renamed/moved. We don't want to 3388 * mch_stat() each buffer each time, that would be too slow. Get the 3389 * dev/ino again when they appear to match, but not when they appear 3390 * to be different: Could skip a buffer when it's actually the same 3391 * file. */ 3392 if (buf_same_ino(buf, stp)) 3393 { 3394 buf_setino(buf); 3395 if (buf_same_ino(buf, stp)) 3396 return FALSE; 3397 } 3398 } 3399 #endif 3400 return TRUE; 3401 } 3402 3403 #if defined(UNIX) || defined(PROTO) 3404 /* 3405 * Set inode and device number for a buffer. 3406 * Must always be called when b_fname is changed!. 3407 */ 3408 void 3409 buf_setino(buf_T *buf) 3410 { 3411 stat_T st; 3412 3413 if (buf->b_fname != NULL && mch_stat((char *)buf->b_fname, &st) >= 0) 3414 { 3415 buf->b_dev_valid = TRUE; 3416 buf->b_dev = st.st_dev; 3417 buf->b_ino = st.st_ino; 3418 } 3419 else 3420 buf->b_dev_valid = FALSE; 3421 } 3422 3423 /* 3424 * Return TRUE if dev/ino in buffer "buf" matches with "stp". 3425 */ 3426 static int 3427 buf_same_ino( 3428 buf_T *buf, 3429 stat_T *stp) 3430 { 3431 return (buf->b_dev_valid 3432 && stp->st_dev == buf->b_dev 3433 && stp->st_ino == buf->b_ino); 3434 } 3435 #endif 3436 3437 /* 3438 * Print info about the current buffer. 3439 */ 3440 void 3441 fileinfo( 3442 int fullname, /* when non-zero print full path */ 3443 int shorthelp, 3444 int dont_truncate) 3445 { 3446 char_u *name; 3447 int n; 3448 char *p; 3449 char *buffer; 3450 size_t len; 3451 3452 buffer = alloc(IOSIZE); 3453 if (buffer == NULL) 3454 return; 3455 3456 if (fullname > 1) /* 2 CTRL-G: include buffer number */ 3457 { 3458 vim_snprintf(buffer, IOSIZE, "buf %d: ", curbuf->b_fnum); 3459 p = buffer + STRLEN(buffer); 3460 } 3461 else 3462 p = buffer; 3463 3464 *p++ = '"'; 3465 if (buf_spname(curbuf) != NULL) 3466 vim_strncpy((char_u *)p, buf_spname(curbuf), IOSIZE - (p - buffer) - 1); 3467 else 3468 { 3469 if (!fullname && curbuf->b_fname != NULL) 3470 name = curbuf->b_fname; 3471 else 3472 name = curbuf->b_ffname; 3473 home_replace(shorthelp ? curbuf : NULL, name, (char_u *)p, 3474 (int)(IOSIZE - (p - buffer)), TRUE); 3475 } 3476 3477 vim_snprintf_add(buffer, IOSIZE, "\"%s%s%s%s%s%s", 3478 curbufIsChanged() ? (shortmess(SHM_MOD) 3479 ? " [+]" : _(" [Modified]")) : " ", 3480 (curbuf->b_flags & BF_NOTEDITED) 3481 #ifdef FEAT_QUICKFIX 3482 && !bt_dontwrite(curbuf) 3483 #endif 3484 ? _("[Not edited]") : "", 3485 (curbuf->b_flags & BF_NEW) 3486 #ifdef FEAT_QUICKFIX 3487 && !bt_dontwrite(curbuf) 3488 #endif 3489 ? _("[New file]") : "", 3490 (curbuf->b_flags & BF_READERR) ? _("[Read errors]") : "", 3491 curbuf->b_p_ro ? (shortmess(SHM_RO) ? _("[RO]") 3492 : _("[readonly]")) : "", 3493 (curbufIsChanged() || (curbuf->b_flags & BF_WRITE_MASK) 3494 || curbuf->b_p_ro) ? 3495 " " : ""); 3496 /* With 32 bit longs and more than 21,474,836 lines multiplying by 100 3497 * causes an overflow, thus for large numbers divide instead. */ 3498 if (curwin->w_cursor.lnum > 1000000L) 3499 n = (int)(((long)curwin->w_cursor.lnum) / 3500 ((long)curbuf->b_ml.ml_line_count / 100L)); 3501 else 3502 n = (int)(((long)curwin->w_cursor.lnum * 100L) / 3503 (long)curbuf->b_ml.ml_line_count); 3504 if (curbuf->b_ml.ml_flags & ML_EMPTY) 3505 vim_snprintf_add(buffer, IOSIZE, "%s", _(no_lines_msg)); 3506 #ifdef FEAT_CMDL_INFO 3507 else if (p_ru) 3508 /* Current line and column are already on the screen -- webb */ 3509 vim_snprintf_add(buffer, IOSIZE, 3510 NGETTEXT("%ld line --%d%%--", "%ld lines --%d%%--", 3511 curbuf->b_ml.ml_line_count), 3512 (long)curbuf->b_ml.ml_line_count, n); 3513 #endif 3514 else 3515 { 3516 vim_snprintf_add(buffer, IOSIZE, 3517 _("line %ld of %ld --%d%%-- col "), 3518 (long)curwin->w_cursor.lnum, 3519 (long)curbuf->b_ml.ml_line_count, 3520 n); 3521 validate_virtcol(); 3522 len = STRLEN(buffer); 3523 col_print((char_u *)buffer + len, IOSIZE - len, 3524 (int)curwin->w_cursor.col + 1, (int)curwin->w_virtcol + 1); 3525 } 3526 3527 (void)append_arg_number(curwin, (char_u *)buffer, IOSIZE, 3528 !shortmess(SHM_FILE)); 3529 3530 if (dont_truncate) 3531 { 3532 /* Temporarily set msg_scroll to avoid the message being truncated. 3533 * First call msg_start() to get the message in the right place. */ 3534 msg_start(); 3535 n = msg_scroll; 3536 msg_scroll = TRUE; 3537 msg(buffer); 3538 msg_scroll = n; 3539 } 3540 else 3541 { 3542 p = (char *)msg_trunc_attr(buffer, FALSE, 0); 3543 if (restart_edit != 0 || (msg_scrolled && !need_wait_return)) 3544 /* Need to repeat the message after redrawing when: 3545 * - When restart_edit is set (otherwise there will be a delay 3546 * before redrawing). 3547 * - When the screen was scrolled but there is no wait-return 3548 * prompt. */ 3549 set_keep_msg((char_u *)p, 0); 3550 } 3551 3552 vim_free(buffer); 3553 } 3554 3555 void 3556 col_print( 3557 char_u *buf, 3558 size_t buflen, 3559 int col, 3560 int vcol) 3561 { 3562 if (col == vcol) 3563 vim_snprintf((char *)buf, buflen, "%d", col); 3564 else 3565 vim_snprintf((char *)buf, buflen, "%d-%d", col, vcol); 3566 } 3567 3568 #if defined(FEAT_TITLE) || defined(PROTO) 3569 static char_u *lasttitle = NULL; 3570 static char_u *lasticon = NULL; 3571 3572 /* 3573 * Put the file name in the title bar and icon of the window. 3574 */ 3575 void 3576 maketitle(void) 3577 { 3578 char_u *p; 3579 char_u *title_str = NULL; 3580 char_u *icon_str = NULL; 3581 int maxlen = 0; 3582 int len; 3583 int mustset; 3584 char_u buf[IOSIZE]; 3585 int off; 3586 3587 if (!redrawing()) 3588 { 3589 /* Postpone updating the title when 'lazyredraw' is set. */ 3590 need_maketitle = TRUE; 3591 return; 3592 } 3593 3594 need_maketitle = FALSE; 3595 if (!p_title && !p_icon && lasttitle == NULL && lasticon == NULL) 3596 return; // nothing to do 3597 3598 if (p_title) 3599 { 3600 if (p_titlelen > 0) 3601 { 3602 maxlen = p_titlelen * Columns / 100; 3603 if (maxlen < 10) 3604 maxlen = 10; 3605 } 3606 3607 title_str = buf; 3608 if (*p_titlestring != NUL) 3609 { 3610 #ifdef FEAT_STL_OPT 3611 if (stl_syntax & STL_IN_TITLE) 3612 { 3613 int use_sandbox = FALSE; 3614 int save_called_emsg = called_emsg; 3615 3616 # ifdef FEAT_EVAL 3617 use_sandbox = was_set_insecurely((char_u *)"titlestring", 0); 3618 # endif 3619 called_emsg = FALSE; 3620 build_stl_str_hl(curwin, title_str, sizeof(buf), 3621 p_titlestring, use_sandbox, 3622 0, maxlen, NULL, NULL); 3623 if (called_emsg) 3624 set_string_option_direct((char_u *)"titlestring", -1, 3625 (char_u *)"", OPT_FREE, SID_ERROR); 3626 called_emsg |= save_called_emsg; 3627 } 3628 else 3629 #endif 3630 title_str = p_titlestring; 3631 } 3632 else 3633 { 3634 /* format: "fname + (path) (1 of 2) - VIM" */ 3635 3636 #define SPACE_FOR_FNAME (IOSIZE - 100) 3637 #define SPACE_FOR_DIR (IOSIZE - 20) 3638 #define SPACE_FOR_ARGNR (IOSIZE - 10) /* at least room for " - VIM" */ 3639 if (curbuf->b_fname == NULL) 3640 vim_strncpy(buf, (char_u *)_("[No Name]"), SPACE_FOR_FNAME); 3641 #ifdef FEAT_TERMINAL 3642 else if (curbuf->b_term != NULL) 3643 { 3644 vim_strncpy(buf, term_get_status_text(curbuf->b_term), 3645 SPACE_FOR_FNAME); 3646 } 3647 #endif 3648 else 3649 { 3650 p = transstr(gettail(curbuf->b_fname)); 3651 vim_strncpy(buf, p, SPACE_FOR_FNAME); 3652 vim_free(p); 3653 } 3654 3655 #ifdef FEAT_TERMINAL 3656 if (curbuf->b_term == NULL) 3657 #endif 3658 switch (bufIsChanged(curbuf) 3659 + (curbuf->b_p_ro * 2) 3660 + (!curbuf->b_p_ma * 4)) 3661 { 3662 case 1: STRCAT(buf, " +"); break; 3663 case 2: STRCAT(buf, " ="); break; 3664 case 3: STRCAT(buf, " =+"); break; 3665 case 4: 3666 case 6: STRCAT(buf, " -"); break; 3667 case 5: 3668 case 7: STRCAT(buf, " -+"); break; 3669 } 3670 3671 if (curbuf->b_fname != NULL 3672 #ifdef FEAT_TERMINAL 3673 && curbuf->b_term == NULL 3674 #endif 3675 ) 3676 { 3677 /* Get path of file, replace home dir with ~ */ 3678 off = (int)STRLEN(buf); 3679 buf[off++] = ' '; 3680 buf[off++] = '('; 3681 home_replace(curbuf, curbuf->b_ffname, 3682 buf + off, SPACE_FOR_DIR - off, TRUE); 3683 #ifdef BACKSLASH_IN_FILENAME 3684 /* avoid "c:/name" to be reduced to "c" */ 3685 if (isalpha(buf[off]) && buf[off + 1] == ':') 3686 off += 2; 3687 #endif 3688 /* remove the file name */ 3689 p = gettail_sep(buf + off); 3690 if (p == buf + off) 3691 { 3692 /* must be a help buffer */ 3693 vim_strncpy(buf + off, (char_u *)_("help"), 3694 (size_t)(SPACE_FOR_DIR - off - 1)); 3695 } 3696 else 3697 *p = NUL; 3698 3699 /* Translate unprintable chars and concatenate. Keep some 3700 * room for the server name. When there is no room (very long 3701 * file name) use (...). */ 3702 if (off < SPACE_FOR_DIR) 3703 { 3704 p = transstr(buf + off); 3705 vim_strncpy(buf + off, p, (size_t)(SPACE_FOR_DIR - off)); 3706 vim_free(p); 3707 } 3708 else 3709 { 3710 vim_strncpy(buf + off, (char_u *)"...", 3711 (size_t)(SPACE_FOR_ARGNR - off)); 3712 } 3713 STRCAT(buf, ")"); 3714 } 3715 3716 append_arg_number(curwin, buf, SPACE_FOR_ARGNR, FALSE); 3717 3718 #if defined(FEAT_CLIENTSERVER) 3719 if (serverName != NULL) 3720 { 3721 STRCAT(buf, " - "); 3722 vim_strcat(buf, serverName, IOSIZE); 3723 } 3724 else 3725 #endif 3726 STRCAT(buf, " - VIM"); 3727 3728 if (maxlen > 0) 3729 { 3730 /* make it shorter by removing a bit in the middle */ 3731 if (vim_strsize(buf) > maxlen) 3732 trunc_string(buf, buf, maxlen, IOSIZE); 3733 } 3734 } 3735 } 3736 mustset = value_changed(title_str, &lasttitle); 3737 3738 if (p_icon) 3739 { 3740 icon_str = buf; 3741 if (*p_iconstring != NUL) 3742 { 3743 #ifdef FEAT_STL_OPT 3744 if (stl_syntax & STL_IN_ICON) 3745 { 3746 int use_sandbox = FALSE; 3747 int save_called_emsg = called_emsg; 3748 3749 # ifdef FEAT_EVAL 3750 use_sandbox = was_set_insecurely((char_u *)"iconstring", 0); 3751 # endif 3752 called_emsg = FALSE; 3753 build_stl_str_hl(curwin, icon_str, sizeof(buf), 3754 p_iconstring, use_sandbox, 3755 0, 0, NULL, NULL); 3756 if (called_emsg) 3757 set_string_option_direct((char_u *)"iconstring", -1, 3758 (char_u *)"", OPT_FREE, SID_ERROR); 3759 called_emsg |= save_called_emsg; 3760 } 3761 else 3762 #endif 3763 icon_str = p_iconstring; 3764 } 3765 else 3766 { 3767 if (buf_spname(curbuf) != NULL) 3768 p = buf_spname(curbuf); 3769 else /* use file name only in icon */ 3770 p = gettail(curbuf->b_ffname); 3771 *icon_str = NUL; 3772 /* Truncate name at 100 bytes. */ 3773 len = (int)STRLEN(p); 3774 if (len > 100) 3775 { 3776 len -= 100; 3777 if (has_mbyte) 3778 len += (*mb_tail_off)(p, p + len) + 1; 3779 p += len; 3780 } 3781 STRCPY(icon_str, p); 3782 trans_characters(icon_str, IOSIZE); 3783 } 3784 } 3785 3786 mustset |= value_changed(icon_str, &lasticon); 3787 3788 if (mustset) 3789 resettitle(); 3790 } 3791 3792 /* 3793 * Used for title and icon: Check if "str" differs from "*last". Set "*last" 3794 * from "str" if it does. 3795 * Return TRUE if resettitle() is to be called. 3796 */ 3797 static int 3798 value_changed(char_u *str, char_u **last) 3799 { 3800 if ((str == NULL) != (*last == NULL) 3801 || (str != NULL && *last != NULL && STRCMP(str, *last) != 0)) 3802 { 3803 vim_free(*last); 3804 if (str == NULL) 3805 { 3806 *last = NULL; 3807 mch_restore_title( 3808 last == &lasttitle ? SAVE_RESTORE_TITLE : SAVE_RESTORE_ICON); 3809 } 3810 else 3811 { 3812 *last = vim_strsave(str); 3813 return TRUE; 3814 } 3815 } 3816 return FALSE; 3817 } 3818 3819 /* 3820 * Put current window title back (used after calling a shell) 3821 */ 3822 void 3823 resettitle(void) 3824 { 3825 mch_settitle(lasttitle, lasticon); 3826 } 3827 3828 # if defined(EXITFREE) || defined(PROTO) 3829 void 3830 free_titles(void) 3831 { 3832 vim_free(lasttitle); 3833 vim_free(lasticon); 3834 } 3835 # endif 3836 3837 #endif /* FEAT_TITLE */ 3838 3839 #if defined(FEAT_STL_OPT) || defined(FEAT_GUI_TABLINE) || defined(PROTO) 3840 /* 3841 * Build a string from the status line items in "fmt". 3842 * Return length of string in screen cells. 3843 * 3844 * Normally works for window "wp", except when working for 'tabline' then it 3845 * is "curwin". 3846 * 3847 * Items are drawn interspersed with the text that surrounds it 3848 * Specials: %-<wid>(xxx%) => group, %= => middle marker, %< => truncation 3849 * Item: %-<minwid>.<maxwid><itemch> All but <itemch> are optional 3850 * 3851 * If maxwidth is not zero, the string will be filled at any middle marker 3852 * or truncated if too long, fillchar is used for all whitespace. 3853 */ 3854 int 3855 build_stl_str_hl( 3856 win_T *wp, 3857 char_u *out, /* buffer to write into != NameBuff */ 3858 size_t outlen, /* length of out[] */ 3859 char_u *fmt, 3860 int use_sandbox UNUSED, /* "fmt" was set insecurely, use sandbox */ 3861 int fillchar, 3862 int maxwidth, 3863 struct stl_hlrec *hltab, /* return: HL attributes (can be NULL) */ 3864 struct stl_hlrec *tabtab) /* return: tab page nrs (can be NULL) */ 3865 { 3866 linenr_T lnum; 3867 size_t len; 3868 char_u *p; 3869 char_u *s; 3870 char_u *t; 3871 int byteval; 3872 #ifdef FEAT_EVAL 3873 win_T *save_curwin; 3874 buf_T *save_curbuf; 3875 #endif 3876 int empty_line; 3877 colnr_T virtcol; 3878 long l; 3879 long n; 3880 int prevchar_isflag; 3881 int prevchar_isitem; 3882 int itemisflag; 3883 int fillable; 3884 char_u *str; 3885 long num; 3886 int width; 3887 int itemcnt; 3888 int curitem; 3889 int group_end_userhl; 3890 int group_start_userhl; 3891 int groupitem[STL_MAX_ITEM]; 3892 int groupdepth; 3893 struct stl_item 3894 { 3895 char_u *start; 3896 int minwid; 3897 int maxwid; 3898 enum 3899 { 3900 Normal, 3901 Empty, 3902 Group, 3903 Middle, 3904 Highlight, 3905 TabPage, 3906 Trunc 3907 } type; 3908 } item[STL_MAX_ITEM]; 3909 int minwid; 3910 int maxwid; 3911 int zeropad; 3912 char_u base; 3913 char_u opt; 3914 #define TMPLEN 70 3915 char_u buf_tmp[TMPLEN]; 3916 char_u win_tmp[TMPLEN]; 3917 char_u *usefmt = fmt; 3918 struct stl_hlrec *sp; 3919 int save_must_redraw = must_redraw; 3920 int save_redr_type = curwin->w_redr_type; 3921 3922 #ifdef FEAT_EVAL 3923 /* 3924 * When the format starts with "%!" then evaluate it as an expression and 3925 * use the result as the actual format string. 3926 */ 3927 if (fmt[0] == '%' && fmt[1] == '!') 3928 { 3929 typval_T tv; 3930 3931 tv.v_type = VAR_NUMBER; 3932 tv.vval.v_number = wp->w_id; 3933 set_var((char_u *)"g:statusline_winid", &tv, FALSE); 3934 3935 usefmt = eval_to_string_safe(fmt + 2, NULL, use_sandbox); 3936 if (usefmt == NULL) 3937 usefmt = fmt; 3938 3939 do_unlet((char_u *)"g:statusline_winid", TRUE); 3940 } 3941 #endif 3942 3943 if (fillchar == 0) 3944 fillchar = ' '; 3945 /* Can't handle a multi-byte fill character yet. */ 3946 else if (mb_char2len(fillchar) > 1) 3947 fillchar = '-'; 3948 3949 // The cursor in windows other than the current one isn't always 3950 // up-to-date, esp. because of autocommands and timers. 3951 lnum = wp->w_cursor.lnum; 3952 if (lnum > wp->w_buffer->b_ml.ml_line_count) 3953 { 3954 lnum = wp->w_buffer->b_ml.ml_line_count; 3955 wp->w_cursor.lnum = lnum; 3956 } 3957 3958 // Get line & check if empty (cursorpos will show "0-1"). Note that 3959 // p will become invalid when getting another buffer line. 3960 p = ml_get_buf(wp->w_buffer, lnum, FALSE); 3961 empty_line = (*p == NUL); 3962 3963 // Get the byte value now, in case we need it below. This is more efficient 3964 // than making a copy of the line. 3965 len = STRLEN(p); 3966 if (wp->w_cursor.col > (colnr_T)len) 3967 { 3968 // Line may have changed since checking the cursor column, or the lnum 3969 // was adjusted above. 3970 wp->w_cursor.col = (colnr_T)len; 3971 wp->w_cursor.coladd = 0; 3972 byteval = 0; 3973 } 3974 else 3975 byteval = (*mb_ptr2char)(p + wp->w_cursor.col); 3976 3977 groupdepth = 0; 3978 p = out; 3979 curitem = 0; 3980 prevchar_isflag = TRUE; 3981 prevchar_isitem = FALSE; 3982 for (s = usefmt; *s; ) 3983 { 3984 if (curitem == STL_MAX_ITEM) 3985 { 3986 /* There are too many items. Add the error code to the statusline 3987 * to give the user a hint about what went wrong. */ 3988 if (p + 6 < out + outlen) 3989 { 3990 mch_memmove(p, " E541", (size_t)5); 3991 p += 5; 3992 } 3993 break; 3994 } 3995 3996 if (*s != NUL && *s != '%') 3997 prevchar_isflag = prevchar_isitem = FALSE; 3998 3999 /* 4000 * Handle up to the next '%' or the end. 4001 */ 4002 while (*s != NUL && *s != '%' && p + 1 < out + outlen) 4003 *p++ = *s++; 4004 if (*s == NUL || p + 1 >= out + outlen) 4005 break; 4006 4007 /* 4008 * Handle one '%' item. 4009 */ 4010 s++; 4011 if (*s == NUL) /* ignore trailing % */ 4012 break; 4013 if (*s == '%') 4014 { 4015 if (p + 1 >= out + outlen) 4016 break; 4017 *p++ = *s++; 4018 prevchar_isflag = prevchar_isitem = FALSE; 4019 continue; 4020 } 4021 if (*s == STL_MIDDLEMARK) 4022 { 4023 s++; 4024 if (groupdepth > 0) 4025 continue; 4026 item[curitem].type = Middle; 4027 item[curitem++].start = p; 4028 continue; 4029 } 4030 if (*s == STL_TRUNCMARK) 4031 { 4032 s++; 4033 item[curitem].type = Trunc; 4034 item[curitem++].start = p; 4035 continue; 4036 } 4037 if (*s == ')') 4038 { 4039 s++; 4040 if (groupdepth < 1) 4041 continue; 4042 groupdepth--; 4043 4044 t = item[groupitem[groupdepth]].start; 4045 *p = NUL; 4046 l = vim_strsize(t); 4047 if (curitem > groupitem[groupdepth] + 1 4048 && item[groupitem[groupdepth]].minwid == 0) 4049 { 4050 /* remove group if all items are empty and highlight group 4051 * doesn't change */ 4052 group_start_userhl = group_end_userhl = 0; 4053 for (n = groupitem[groupdepth] - 1; n >= 0; n--) 4054 { 4055 if (item[n].type == Highlight) 4056 { 4057 group_start_userhl = group_end_userhl = item[n].minwid; 4058 break; 4059 } 4060 } 4061 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 4062 { 4063 if (item[n].type == Normal) 4064 break; 4065 if (item[n].type == Highlight) 4066 group_end_userhl = item[n].minwid; 4067 } 4068 if (n == curitem && group_start_userhl == group_end_userhl) 4069 { 4070 p = t; 4071 l = 0; 4072 } 4073 } 4074 if (l > item[groupitem[groupdepth]].maxwid) 4075 { 4076 /* truncate, remove n bytes of text at the start */ 4077 if (has_mbyte) 4078 { 4079 /* Find the first character that should be included. */ 4080 n = 0; 4081 while (l >= item[groupitem[groupdepth]].maxwid) 4082 { 4083 l -= ptr2cells(t + n); 4084 n += (*mb_ptr2len)(t + n); 4085 } 4086 } 4087 else 4088 n = (long)(p - t) - item[groupitem[groupdepth]].maxwid + 1; 4089 4090 *t = '<'; 4091 mch_memmove(t + 1, t + n, (size_t)(p - (t + n))); 4092 p = p - n + 1; 4093 4094 // Fill up space left over by half a double-wide char. 4095 while (++l < item[groupitem[groupdepth]].minwid) 4096 *p++ = fillchar; 4097 4098 /* correct the start of the items for the truncation */ 4099 for (l = groupitem[groupdepth] + 1; l < curitem; l++) 4100 { 4101 item[l].start -= n; 4102 if (item[l].start < t) 4103 item[l].start = t; 4104 } 4105 } 4106 else if (abs(item[groupitem[groupdepth]].minwid) > l) 4107 { 4108 /* fill */ 4109 n = item[groupitem[groupdepth]].minwid; 4110 if (n < 0) 4111 { 4112 /* fill by appending characters */ 4113 n = 0 - n; 4114 while (l++ < n && p + 1 < out + outlen) 4115 *p++ = fillchar; 4116 } 4117 else 4118 { 4119 /* fill by inserting characters */ 4120 mch_memmove(t + n - l, t, (size_t)(p - t)); 4121 l = n - l; 4122 if (p + l >= out + outlen) 4123 l = (long)((out + outlen) - p - 1); 4124 p += l; 4125 for (n = groupitem[groupdepth] + 1; n < curitem; n++) 4126 item[n].start += l; 4127 for ( ; l > 0; l--) 4128 *t++ = fillchar; 4129 } 4130 } 4131 continue; 4132 } 4133 minwid = 0; 4134 maxwid = 9999; 4135 zeropad = FALSE; 4136 l = 1; 4137 if (*s == '0') 4138 { 4139 s++; 4140 zeropad = TRUE; 4141 } 4142 if (*s == '-') 4143 { 4144 s++; 4145 l = -1; 4146 } 4147 if (VIM_ISDIGIT(*s)) 4148 { 4149 minwid = (int)getdigits(&s); 4150 if (minwid < 0) /* overflow */ 4151 minwid = 0; 4152 } 4153 if (*s == STL_USER_HL) 4154 { 4155 item[curitem].type = Highlight; 4156 item[curitem].start = p; 4157 item[curitem].minwid = minwid > 9 ? 1 : minwid; 4158 s++; 4159 curitem++; 4160 continue; 4161 } 4162 if (*s == STL_TABPAGENR || *s == STL_TABCLOSENR) 4163 { 4164 if (*s == STL_TABCLOSENR) 4165 { 4166 if (minwid == 0) 4167 { 4168 /* %X ends the close label, go back to the previously 4169 * define tab label nr. */ 4170 for (n = curitem - 1; n >= 0; --n) 4171 if (item[n].type == TabPage && item[n].minwid >= 0) 4172 { 4173 minwid = item[n].minwid; 4174 break; 4175 } 4176 } 4177 else 4178 /* close nrs are stored as negative values */ 4179 minwid = - minwid; 4180 } 4181 item[curitem].type = TabPage; 4182 item[curitem].start = p; 4183 item[curitem].minwid = minwid; 4184 s++; 4185 curitem++; 4186 continue; 4187 } 4188 if (*s == '.') 4189 { 4190 s++; 4191 if (VIM_ISDIGIT(*s)) 4192 { 4193 maxwid = (int)getdigits(&s); 4194 if (maxwid <= 0) /* overflow */ 4195 maxwid = 50; 4196 } 4197 } 4198 minwid = (minwid > 50 ? 50 : minwid) * l; 4199 if (*s == '(') 4200 { 4201 groupitem[groupdepth++] = curitem; 4202 item[curitem].type = Group; 4203 item[curitem].start = p; 4204 item[curitem].minwid = minwid; 4205 item[curitem].maxwid = maxwid; 4206 s++; 4207 curitem++; 4208 continue; 4209 } 4210 if (vim_strchr(STL_ALL, *s) == NULL) 4211 { 4212 s++; 4213 continue; 4214 } 4215 opt = *s++; 4216 4217 /* OK - now for the real work */ 4218 base = 'D'; 4219 itemisflag = FALSE; 4220 fillable = TRUE; 4221 num = -1; 4222 str = NULL; 4223 switch (opt) 4224 { 4225 case STL_FILEPATH: 4226 case STL_FULLPATH: 4227 case STL_FILENAME: 4228 fillable = FALSE; /* don't change ' ' to fillchar */ 4229 if (buf_spname(wp->w_buffer) != NULL) 4230 vim_strncpy(NameBuff, buf_spname(wp->w_buffer), MAXPATHL - 1); 4231 else 4232 { 4233 t = (opt == STL_FULLPATH) ? wp->w_buffer->b_ffname 4234 : wp->w_buffer->b_fname; 4235 home_replace(wp->w_buffer, t, NameBuff, MAXPATHL, TRUE); 4236 } 4237 trans_characters(NameBuff, MAXPATHL); 4238 if (opt != STL_FILENAME) 4239 str = NameBuff; 4240 else 4241 str = gettail(NameBuff); 4242 break; 4243 4244 case STL_VIM_EXPR: /* '{' */ 4245 itemisflag = TRUE; 4246 t = p; 4247 while (*s != '}' && *s != NUL && p + 1 < out + outlen) 4248 *p++ = *s++; 4249 if (*s != '}') /* missing '}' or out of space */ 4250 break; 4251 s++; 4252 *p = 0; 4253 p = t; 4254 4255 #ifdef FEAT_EVAL 4256 vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), 4257 "%d", curbuf->b_fnum); 4258 set_internal_string_var((char_u *)"g:actual_curbuf", buf_tmp); 4259 vim_snprintf((char *)win_tmp, sizeof(win_tmp), "%d", curwin->w_id); 4260 set_internal_string_var((char_u *)"g:actual_curwin", win_tmp); 4261 4262 save_curbuf = curbuf; 4263 save_curwin = curwin; 4264 curwin = wp; 4265 curbuf = wp->w_buffer; 4266 4267 str = eval_to_string_safe(p, &t, use_sandbox); 4268 4269 curwin = save_curwin; 4270 curbuf = save_curbuf; 4271 do_unlet((char_u *)"g:actual_curbuf", TRUE); 4272 do_unlet((char_u *)"g:actual_curwin", TRUE); 4273 4274 if (str != NULL && *str != 0) 4275 { 4276 if (*skipdigits(str) == NUL) 4277 { 4278 num = atoi((char *)str); 4279 VIM_CLEAR(str); 4280 itemisflag = FALSE; 4281 } 4282 } 4283 #endif 4284 break; 4285 4286 case STL_LINE: 4287 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) 4288 ? 0L : (long)(wp->w_cursor.lnum); 4289 break; 4290 4291 case STL_NUMLINES: 4292 num = wp->w_buffer->b_ml.ml_line_count; 4293 break; 4294 4295 case STL_COLUMN: 4296 num = !(State & INSERT) && empty_line 4297 ? 0 : (int)wp->w_cursor.col + 1; 4298 break; 4299 4300 case STL_VIRTCOL: 4301 case STL_VIRTCOL_ALT: 4302 /* In list mode virtcol needs to be recomputed */ 4303 virtcol = wp->w_virtcol; 4304 if (wp->w_p_list && lcs_tab1 == NUL) 4305 { 4306 wp->w_p_list = FALSE; 4307 getvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL); 4308 wp->w_p_list = TRUE; 4309 } 4310 ++virtcol; 4311 /* Don't display %V if it's the same as %c. */ 4312 if (opt == STL_VIRTCOL_ALT 4313 && (virtcol == (colnr_T)(!(State & INSERT) && empty_line 4314 ? 0 : (int)wp->w_cursor.col + 1))) 4315 break; 4316 num = (long)virtcol; 4317 break; 4318 4319 case STL_PERCENTAGE: 4320 num = (int)(((long)wp->w_cursor.lnum * 100L) / 4321 (long)wp->w_buffer->b_ml.ml_line_count); 4322 break; 4323 4324 case STL_ALTPERCENT: 4325 str = buf_tmp; 4326 get_rel_pos(wp, str, TMPLEN); 4327 break; 4328 4329 case STL_ARGLISTSTAT: 4330 fillable = FALSE; 4331 buf_tmp[0] = 0; 4332 if (append_arg_number(wp, buf_tmp, (int)sizeof(buf_tmp), FALSE)) 4333 str = buf_tmp; 4334 break; 4335 4336 case STL_KEYMAP: 4337 fillable = FALSE; 4338 if (get_keymap_str(wp, (char_u *)"<%s>", buf_tmp, TMPLEN)) 4339 str = buf_tmp; 4340 break; 4341 case STL_PAGENUM: 4342 #if defined(FEAT_PRINTER) || defined(FEAT_GUI_TABLINE) 4343 num = printer_page_num; 4344 #else 4345 num = 0; 4346 #endif 4347 break; 4348 4349 case STL_BUFNO: 4350 num = wp->w_buffer->b_fnum; 4351 break; 4352 4353 case STL_OFFSET_X: 4354 base = 'X'; 4355 /* FALLTHROUGH */ 4356 case STL_OFFSET: 4357 #ifdef FEAT_BYTEOFF 4358 l = ml_find_line_or_offset(wp->w_buffer, wp->w_cursor.lnum, NULL); 4359 num = (wp->w_buffer->b_ml.ml_flags & ML_EMPTY) || l < 0 ? 4360 0L : l + 1 + (!(State & INSERT) && empty_line ? 4361 0 : (int)wp->w_cursor.col); 4362 #endif 4363 break; 4364 4365 case STL_BYTEVAL_X: 4366 base = 'X'; 4367 /* FALLTHROUGH */ 4368 case STL_BYTEVAL: 4369 num = byteval; 4370 if (num == NL) 4371 num = 0; 4372 else if (num == CAR && get_fileformat(wp->w_buffer) == EOL_MAC) 4373 num = NL; 4374 break; 4375 4376 case STL_ROFLAG: 4377 case STL_ROFLAG_ALT: 4378 itemisflag = TRUE; 4379 if (wp->w_buffer->b_p_ro) 4380 str = (char_u *)((opt == STL_ROFLAG_ALT) ? ",RO" : _("[RO]")); 4381 break; 4382 4383 case STL_HELPFLAG: 4384 case STL_HELPFLAG_ALT: 4385 itemisflag = TRUE; 4386 if (wp->w_buffer->b_help) 4387 str = (char_u *)((opt == STL_HELPFLAG_ALT) ? ",HLP" 4388 : _("[Help]")); 4389 break; 4390 4391 case STL_FILETYPE: 4392 if (*wp->w_buffer->b_p_ft != NUL 4393 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 3) 4394 { 4395 vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), "[%s]", 4396 wp->w_buffer->b_p_ft); 4397 str = buf_tmp; 4398 } 4399 break; 4400 4401 case STL_FILETYPE_ALT: 4402 itemisflag = TRUE; 4403 if (*wp->w_buffer->b_p_ft != NUL 4404 && STRLEN(wp->w_buffer->b_p_ft) < TMPLEN - 2) 4405 { 4406 vim_snprintf((char *)buf_tmp, sizeof(buf_tmp), ",%s", 4407 wp->w_buffer->b_p_ft); 4408 for (t = buf_tmp; *t != 0; t++) 4409 *t = TOUPPER_LOC(*t); 4410 str = buf_tmp; 4411 } 4412 break; 4413 4414 #if defined(FEAT_QUICKFIX) 4415 case STL_PREVIEWFLAG: 4416 case STL_PREVIEWFLAG_ALT: 4417 itemisflag = TRUE; 4418 if (wp->w_p_pvw) 4419 str = (char_u *)((opt == STL_PREVIEWFLAG_ALT) ? ",PRV" 4420 : _("[Preview]")); 4421 break; 4422 4423 case STL_QUICKFIX: 4424 if (bt_quickfix(wp->w_buffer)) 4425 str = (char_u *)(wp->w_llist_ref 4426 ? _(msg_loclist) 4427 : _(msg_qflist)); 4428 break; 4429 #endif 4430 4431 case STL_MODIFIED: 4432 case STL_MODIFIED_ALT: 4433 itemisflag = TRUE; 4434 switch ((opt == STL_MODIFIED_ALT) 4435 + bufIsChanged(wp->w_buffer) * 2 4436 + (!wp->w_buffer->b_p_ma) * 4) 4437 { 4438 case 2: str = (char_u *)"[+]"; break; 4439 case 3: str = (char_u *)",+"; break; 4440 case 4: str = (char_u *)"[-]"; break; 4441 case 5: str = (char_u *)",-"; break; 4442 case 6: str = (char_u *)"[+-]"; break; 4443 case 7: str = (char_u *)",+-"; break; 4444 } 4445 break; 4446 4447 case STL_HIGHLIGHT: 4448 t = s; 4449 while (*s != '#' && *s != NUL) 4450 ++s; 4451 if (*s == '#') 4452 { 4453 item[curitem].type = Highlight; 4454 item[curitem].start = p; 4455 item[curitem].minwid = -syn_namen2id(t, (int)(s - t)); 4456 curitem++; 4457 } 4458 if (*s != NUL) 4459 ++s; 4460 continue; 4461 } 4462 4463 item[curitem].start = p; 4464 item[curitem].type = Normal; 4465 if (str != NULL && *str) 4466 { 4467 t = str; 4468 if (itemisflag) 4469 { 4470 if ((t[0] && t[1]) 4471 && ((!prevchar_isitem && *t == ',') 4472 || (prevchar_isflag && *t == ' '))) 4473 t++; 4474 prevchar_isflag = TRUE; 4475 } 4476 l = vim_strsize(t); 4477 if (l > 0) 4478 prevchar_isitem = TRUE; 4479 if (l > maxwid) 4480 { 4481 while (l >= maxwid) 4482 if (has_mbyte) 4483 { 4484 l -= ptr2cells(t); 4485 t += (*mb_ptr2len)(t); 4486 } 4487 else 4488 l -= byte2cells(*t++); 4489 if (p + 1 >= out + outlen) 4490 break; 4491 *p++ = '<'; 4492 } 4493 if (minwid > 0) 4494 { 4495 for (; l < minwid && p + 1 < out + outlen; l++) 4496 { 4497 /* Don't put a "-" in front of a digit. */ 4498 if (l + 1 == minwid && fillchar == '-' && VIM_ISDIGIT(*t)) 4499 *p++ = ' '; 4500 else 4501 *p++ = fillchar; 4502 } 4503 minwid = 0; 4504 } 4505 else 4506 minwid *= -1; 4507 while (*t && p + 1 < out + outlen) 4508 { 4509 *p++ = *t++; 4510 /* Change a space by fillchar, unless fillchar is '-' and a 4511 * digit follows. */ 4512 if (fillable && p[-1] == ' ' 4513 && (!VIM_ISDIGIT(*t) || fillchar != '-')) 4514 p[-1] = fillchar; 4515 } 4516 for (; l < minwid && p + 1 < out + outlen; l++) 4517 *p++ = fillchar; 4518 } 4519 else if (num >= 0) 4520 { 4521 int nbase = (base == 'D' ? 10 : (base == 'O' ? 8 : 16)); 4522 char_u nstr[20]; 4523 4524 if (p + 20 >= out + outlen) 4525 break; /* not sufficient space */ 4526 prevchar_isitem = TRUE; 4527 t = nstr; 4528 if (opt == STL_VIRTCOL_ALT) 4529 { 4530 *t++ = '-'; 4531 minwid--; 4532 } 4533 *t++ = '%'; 4534 if (zeropad) 4535 *t++ = '0'; 4536 *t++ = '*'; 4537 *t++ = nbase == 16 ? base : (char_u)(nbase == 8 ? 'o' : 'd'); 4538 *t = 0; 4539 4540 for (n = num, l = 1; n >= nbase; n /= nbase) 4541 l++; 4542 if (opt == STL_VIRTCOL_ALT) 4543 l++; 4544 if (l > maxwid) 4545 { 4546 l += 2; 4547 n = l - maxwid; 4548 while (l-- > maxwid) 4549 num /= nbase; 4550 *t++ = '>'; 4551 *t++ = '%'; 4552 *t = t[-3]; 4553 *++t = 0; 4554 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4555 0, num, n); 4556 } 4557 else 4558 vim_snprintf((char *)p, outlen - (p - out), (char *)nstr, 4559 minwid, num); 4560 p += STRLEN(p); 4561 } 4562 else 4563 item[curitem].type = Empty; 4564 4565 if (opt == STL_VIM_EXPR) 4566 vim_free(str); 4567 4568 if (num >= 0 || (!itemisflag && str && *str)) 4569 prevchar_isflag = FALSE; /* Item not NULL, but not a flag */ 4570 curitem++; 4571 } 4572 *p = NUL; 4573 itemcnt = curitem; 4574 4575 #ifdef FEAT_EVAL 4576 if (usefmt != fmt) 4577 vim_free(usefmt); 4578 #endif 4579 4580 width = vim_strsize(out); 4581 if (maxwidth > 0 && width > maxwidth) 4582 { 4583 /* Result is too long, must truncate somewhere. */ 4584 l = 0; 4585 if (itemcnt == 0) 4586 s = out; 4587 else 4588 { 4589 for ( ; l < itemcnt; l++) 4590 if (item[l].type == Trunc) 4591 { 4592 /* Truncate at %< item. */ 4593 s = item[l].start; 4594 break; 4595 } 4596 if (l == itemcnt) 4597 { 4598 /* No %< item, truncate first item. */ 4599 s = item[0].start; 4600 l = 0; 4601 } 4602 } 4603 4604 if (width - vim_strsize(s) >= maxwidth) 4605 { 4606 /* Truncation mark is beyond max length */ 4607 if (has_mbyte) 4608 { 4609 s = out; 4610 width = 0; 4611 for (;;) 4612 { 4613 width += ptr2cells(s); 4614 if (width >= maxwidth) 4615 break; 4616 s += (*mb_ptr2len)(s); 4617 } 4618 /* Fill up for half a double-wide character. */ 4619 while (++width < maxwidth) 4620 *s++ = fillchar; 4621 } 4622 else 4623 s = out + maxwidth - 1; 4624 for (l = 0; l < itemcnt; l++) 4625 if (item[l].start > s) 4626 break; 4627 itemcnt = l; 4628 *s++ = '>'; 4629 *s = 0; 4630 } 4631 else 4632 { 4633 if (has_mbyte) 4634 { 4635 n = 0; 4636 while (width >= maxwidth) 4637 { 4638 width -= ptr2cells(s + n); 4639 n += (*mb_ptr2len)(s + n); 4640 } 4641 } 4642 else 4643 n = width - maxwidth + 1; 4644 p = s + n; 4645 STRMOVE(s + 1, p); 4646 *s = '<'; 4647 4648 /* Fill up for half a double-wide character. */ 4649 while (++width < maxwidth) 4650 { 4651 s = s + STRLEN(s); 4652 *s++ = fillchar; 4653 *s = NUL; 4654 } 4655 4656 --n; /* count the '<' */ 4657 for (; l < itemcnt; l++) 4658 { 4659 if (item[l].start - n >= s) 4660 item[l].start -= n; 4661 else 4662 item[l].start = s; 4663 } 4664 } 4665 width = maxwidth; 4666 } 4667 else if (width < maxwidth && STRLEN(out) + maxwidth - width + 1 < outlen) 4668 { 4669 /* Apply STL_MIDDLE if any */ 4670 for (l = 0; l < itemcnt; l++) 4671 if (item[l].type == Middle) 4672 break; 4673 if (l < itemcnt) 4674 { 4675 p = item[l].start + maxwidth - width; 4676 STRMOVE(p, item[l].start); 4677 for (s = item[l].start; s < p; s++) 4678 *s = fillchar; 4679 for (l++; l < itemcnt; l++) 4680 item[l].start += maxwidth - width; 4681 width = maxwidth; 4682 } 4683 } 4684 4685 /* Store the info about highlighting. */ 4686 if (hltab != NULL) 4687 { 4688 sp = hltab; 4689 for (l = 0; l < itemcnt; l++) 4690 { 4691 if (item[l].type == Highlight) 4692 { 4693 sp->start = item[l].start; 4694 sp->userhl = item[l].minwid; 4695 sp++; 4696 } 4697 } 4698 sp->start = NULL; 4699 sp->userhl = 0; 4700 } 4701 4702 /* Store the info about tab pages labels. */ 4703 if (tabtab != NULL) 4704 { 4705 sp = tabtab; 4706 for (l = 0; l < itemcnt; l++) 4707 { 4708 if (item[l].type == TabPage) 4709 { 4710 sp->start = item[l].start; 4711 sp->userhl = item[l].minwid; 4712 sp++; 4713 } 4714 } 4715 sp->start = NULL; 4716 sp->userhl = 0; 4717 } 4718 4719 /* When inside update_screen we do not want redrawing a stausline, ruler, 4720 * title, etc. to trigger another redraw, it may cause an endless loop. */ 4721 if (updating_screen) 4722 { 4723 must_redraw = save_must_redraw; 4724 curwin->w_redr_type = save_redr_type; 4725 } 4726 4727 return width; 4728 } 4729 #endif /* FEAT_STL_OPT */ 4730 4731 #if defined(FEAT_STL_OPT) || defined(FEAT_CMDL_INFO) \ 4732 || defined(FEAT_GUI_TABLINE) || defined(PROTO) 4733 /* 4734 * Get relative cursor position in window into "buf[buflen]", in the form 99%, 4735 * using "Top", "Bot" or "All" when appropriate. 4736 */ 4737 void 4738 get_rel_pos( 4739 win_T *wp, 4740 char_u *buf, 4741 int buflen) 4742 { 4743 long above; /* number of lines above window */ 4744 long below; /* number of lines below window */ 4745 4746 if (buflen < 3) /* need at least 3 chars for writing */ 4747 return; 4748 above = wp->w_topline - 1; 4749 #ifdef FEAT_DIFF 4750 above += diff_check_fill(wp, wp->w_topline) - wp->w_topfill; 4751 if (wp->w_topline == 1 && wp->w_topfill >= 1) 4752 above = 0; /* All buffer lines are displayed and there is an 4753 * indication of filler lines, that can be considered 4754 * seeing all lines. */ 4755 #endif 4756 below = wp->w_buffer->b_ml.ml_line_count - wp->w_botline + 1; 4757 if (below <= 0) 4758 vim_strncpy(buf, (char_u *)(above == 0 ? _("All") : _("Bot")), 4759 (size_t)(buflen - 1)); 4760 else if (above <= 0) 4761 vim_strncpy(buf, (char_u *)_("Top"), (size_t)(buflen - 1)); 4762 else 4763 vim_snprintf((char *)buf, (size_t)buflen, "%2d%%", above > 1000000L 4764 ? (int)(above / ((above + below) / 100L)) 4765 : (int)(above * 100L / (above + below))); 4766 } 4767 #endif 4768 4769 /* 4770 * Append (file 2 of 8) to "buf[buflen]", if editing more than one file. 4771 * Return TRUE if it was appended. 4772 */ 4773 static int 4774 append_arg_number( 4775 win_T *wp, 4776 char_u *buf, 4777 int buflen, 4778 int add_file) /* Add "file" before the arg number */ 4779 { 4780 char_u *p; 4781 4782 if (ARGCOUNT <= 1) /* nothing to do */ 4783 return FALSE; 4784 4785 p = buf + STRLEN(buf); /* go to the end of the buffer */ 4786 if (p - buf + 35 >= buflen) /* getting too long */ 4787 return FALSE; 4788 *p++ = ' '; 4789 *p++ = '('; 4790 if (add_file) 4791 { 4792 STRCPY(p, "file "); 4793 p += 5; 4794 } 4795 vim_snprintf((char *)p, (size_t)(buflen - (p - buf)), 4796 wp->w_arg_idx_invalid ? "(%d) of %d)" 4797 : "%d of %d)", wp->w_arg_idx + 1, ARGCOUNT); 4798 return TRUE; 4799 } 4800 4801 /* 4802 * If fname is not a full path, make it a full path. 4803 * Returns pointer to allocated memory (NULL for failure). 4804 */ 4805 char_u * 4806 fix_fname(char_u *fname) 4807 { 4808 /* 4809 * Force expanding the path always for Unix, because symbolic links may 4810 * mess up the full path name, even though it starts with a '/'. 4811 * Also expand when there is ".." in the file name, try to remove it, 4812 * because "c:/src/../README" is equal to "c:/README". 4813 * Similarly "c:/src//file" is equal to "c:/src/file". 4814 * For MS-Windows also expand names like "longna~1" to "longname". 4815 */ 4816 #ifdef UNIX 4817 return FullName_save(fname, TRUE); 4818 #else 4819 if (!vim_isAbsName(fname) 4820 || strstr((char *)fname, "..") != NULL 4821 || strstr((char *)fname, "//") != NULL 4822 # ifdef BACKSLASH_IN_FILENAME 4823 || strstr((char *)fname, "\\\\") != NULL 4824 # endif 4825 # if defined(MSWIN) 4826 || vim_strchr(fname, '~') != NULL 4827 # endif 4828 ) 4829 return FullName_save(fname, FALSE); 4830 4831 fname = vim_strsave(fname); 4832 4833 # ifdef USE_FNAME_CASE 4834 if (fname != NULL) 4835 fname_case(fname, 0); /* set correct case for file name */ 4836 # endif 4837 4838 return fname; 4839 #endif 4840 } 4841 4842 /* 4843 * Make "*ffname" a full file name, set "*sfname" to "*ffname" if not NULL. 4844 * "*ffname" becomes a pointer to allocated memory (or NULL). 4845 * When resolving a link both "*sfname" and "*ffname" will point to the same 4846 * allocated memory. 4847 * The "*ffname" and "*sfname" pointer values on call will not be freed. 4848 * Note that the resulting "*ffname" pointer should be considered not allocaed. 4849 */ 4850 void 4851 fname_expand( 4852 buf_T *buf UNUSED, 4853 char_u **ffname, 4854 char_u **sfname) 4855 { 4856 if (*ffname == NULL) // no file name given, nothing to do 4857 return; 4858 if (*sfname == NULL) // no short file name given, use ffname 4859 *sfname = *ffname; 4860 *ffname = fix_fname(*ffname); // expand to full path 4861 4862 #ifdef FEAT_SHORTCUT 4863 if (!buf->b_p_bin) 4864 { 4865 char_u *rfname; 4866 4867 // If the file name is a shortcut file, use the file it links to. 4868 rfname = mch_resolve_path(*ffname, FALSE); 4869 if (rfname != NULL) 4870 { 4871 vim_free(*ffname); 4872 *ffname = rfname; 4873 *sfname = rfname; 4874 } 4875 } 4876 #endif 4877 } 4878 4879 /* 4880 * Get the file name for an argument list entry. 4881 */ 4882 char_u * 4883 alist_name(aentry_T *aep) 4884 { 4885 buf_T *bp; 4886 4887 /* Use the name from the associated buffer if it exists. */ 4888 bp = buflist_findnr(aep->ae_fnum); 4889 if (bp == NULL || bp->b_fname == NULL) 4890 return aep->ae_fname; 4891 return bp->b_fname; 4892 } 4893 4894 /* 4895 * do_arg_all(): Open up to 'count' windows, one for each argument. 4896 */ 4897 void 4898 do_arg_all( 4899 int count, 4900 int forceit, /* hide buffers in current windows */ 4901 int keep_tabs) /* keep current tabs, for ":tab drop file" */ 4902 { 4903 int i; 4904 win_T *wp, *wpnext; 4905 char_u *opened; /* Array of weight for which args are open: 4906 * 0: not opened 4907 * 1: opened in other tab 4908 * 2: opened in curtab 4909 * 3: opened in curtab and curwin 4910 */ 4911 int opened_len; /* length of opened[] */ 4912 int use_firstwin = FALSE; /* use first window for arglist */ 4913 int split_ret = OK; 4914 int p_ea_save; 4915 alist_T *alist; /* argument list to be used */ 4916 buf_T *buf; 4917 tabpage_T *tpnext; 4918 int had_tab = cmdmod.tab; 4919 win_T *old_curwin, *last_curwin; 4920 tabpage_T *old_curtab, *last_curtab; 4921 win_T *new_curwin = NULL; 4922 tabpage_T *new_curtab = NULL; 4923 4924 if (ARGCOUNT <= 0) 4925 { 4926 /* Don't give an error message. We don't want it when the ":all" 4927 * command is in the .vimrc. */ 4928 return; 4929 } 4930 setpcmark(); 4931 4932 opened_len = ARGCOUNT; 4933 opened = alloc_clear(opened_len); 4934 if (opened == NULL) 4935 return; 4936 4937 /* Autocommands may do anything to the argument list. Make sure it's not 4938 * freed while we are working here by "locking" it. We still have to 4939 * watch out for its size to be changed. */ 4940 alist = curwin->w_alist; 4941 ++alist->al_refcount; 4942 4943 old_curwin = curwin; 4944 old_curtab = curtab; 4945 4946 # ifdef FEAT_GUI 4947 need_mouse_correct = TRUE; 4948 # endif 4949 4950 /* 4951 * Try closing all windows that are not in the argument list. 4952 * Also close windows that are not full width; 4953 * When 'hidden' or "forceit" set the buffer becomes hidden. 4954 * Windows that have a changed buffer and can't be hidden won't be closed. 4955 * When the ":tab" modifier was used do this for all tab pages. 4956 */ 4957 if (had_tab > 0) 4958 goto_tabpage_tp(first_tabpage, TRUE, TRUE); 4959 for (;;) 4960 { 4961 tpnext = curtab->tp_next; 4962 for (wp = firstwin; wp != NULL; wp = wpnext) 4963 { 4964 wpnext = wp->w_next; 4965 buf = wp->w_buffer; 4966 if (buf->b_ffname == NULL 4967 || (!keep_tabs && (buf->b_nwindows > 1 4968 || wp->w_width != Columns))) 4969 i = opened_len; 4970 else 4971 { 4972 /* check if the buffer in this window is in the arglist */ 4973 for (i = 0; i < opened_len; ++i) 4974 { 4975 if (i < alist->al_ga.ga_len 4976 && (AARGLIST(alist)[i].ae_fnum == buf->b_fnum 4977 || fullpathcmp(alist_name(&AARGLIST(alist)[i]), 4978 buf->b_ffname, TRUE, TRUE) & FPC_SAME)) 4979 { 4980 int weight = 1; 4981 4982 if (old_curtab == curtab) 4983 { 4984 ++weight; 4985 if (old_curwin == wp) 4986 ++weight; 4987 } 4988 4989 if (weight > (int)opened[i]) 4990 { 4991 opened[i] = (char_u)weight; 4992 if (i == 0) 4993 { 4994 if (new_curwin != NULL) 4995 new_curwin->w_arg_idx = opened_len; 4996 new_curwin = wp; 4997 new_curtab = curtab; 4998 } 4999 } 5000 else if (keep_tabs) 5001 i = opened_len; 5002 5003 if (wp->w_alist != alist) 5004 { 5005 /* Use the current argument list for all windows 5006 * containing a file from it. */ 5007 alist_unlink(wp->w_alist); 5008 wp->w_alist = alist; 5009 ++wp->w_alist->al_refcount; 5010 } 5011 break; 5012 } 5013 } 5014 } 5015 wp->w_arg_idx = i; 5016 5017 if (i == opened_len && !keep_tabs)/* close this window */ 5018 { 5019 if (buf_hide(buf) || forceit || buf->b_nwindows > 1 5020 || !bufIsChanged(buf)) 5021 { 5022 /* If the buffer was changed, and we would like to hide it, 5023 * try autowriting. */ 5024 if (!buf_hide(buf) && buf->b_nwindows <= 1 5025 && bufIsChanged(buf)) 5026 { 5027 bufref_T bufref; 5028 5029 set_bufref(&bufref, buf); 5030 5031 (void)autowrite(buf, FALSE); 5032 5033 /* check if autocommands removed the window */ 5034 if (!win_valid(wp) || !bufref_valid(&bufref)) 5035 { 5036 wpnext = firstwin; /* start all over... */ 5037 continue; 5038 } 5039 } 5040 /* don't close last window */ 5041 if (ONE_WINDOW 5042 && (first_tabpage->tp_next == NULL || !had_tab)) 5043 use_firstwin = TRUE; 5044 else 5045 { 5046 win_close(wp, !buf_hide(buf) && !bufIsChanged(buf)); 5047 5048 /* check if autocommands removed the next window */ 5049 if (!win_valid(wpnext)) 5050 wpnext = firstwin; /* start all over... */ 5051 } 5052 } 5053 } 5054 } 5055 5056 /* Without the ":tab" modifier only do the current tab page. */ 5057 if (had_tab == 0 || tpnext == NULL) 5058 break; 5059 5060 /* check if autocommands removed the next tab page */ 5061 if (!valid_tabpage(tpnext)) 5062 tpnext = first_tabpage; /* start all over...*/ 5063 5064 goto_tabpage_tp(tpnext, TRUE, TRUE); 5065 } 5066 5067 /* 5068 * Open a window for files in the argument list that don't have one. 5069 * ARGCOUNT may change while doing this, because of autocommands. 5070 */ 5071 if (count > opened_len || count <= 0) 5072 count = opened_len; 5073 5074 /* Don't execute Win/Buf Enter/Leave autocommands here. */ 5075 ++autocmd_no_enter; 5076 ++autocmd_no_leave; 5077 last_curwin = curwin; 5078 last_curtab = curtab; 5079 win_enter(lastwin, FALSE); 5080 /* ":drop all" should re-use an empty window to avoid "--remote-tab" 5081 * leaving an empty tab page when executed locally. */ 5082 if (keep_tabs && BUFEMPTY() && curbuf->b_nwindows == 1 5083 && curbuf->b_ffname == NULL && !curbuf->b_changed) 5084 use_firstwin = TRUE; 5085 5086 for (i = 0; i < count && i < opened_len && !got_int; ++i) 5087 { 5088 if (alist == &global_alist && i == global_alist.al_ga.ga_len - 1) 5089 arg_had_last = TRUE; 5090 if (opened[i] > 0) 5091 { 5092 /* Move the already present window to below the current window */ 5093 if (curwin->w_arg_idx != i) 5094 { 5095 for (wpnext = firstwin; wpnext != NULL; wpnext = wpnext->w_next) 5096 { 5097 if (wpnext->w_arg_idx == i) 5098 { 5099 if (keep_tabs) 5100 { 5101 new_curwin = wpnext; 5102 new_curtab = curtab; 5103 } 5104 else 5105 win_move_after(wpnext, curwin); 5106 break; 5107 } 5108 } 5109 } 5110 } 5111 else if (split_ret == OK) 5112 { 5113 if (!use_firstwin) /* split current window */ 5114 { 5115 p_ea_save = p_ea; 5116 p_ea = TRUE; /* use space from all windows */ 5117 split_ret = win_split(0, WSP_ROOM | WSP_BELOW); 5118 p_ea = p_ea_save; 5119 if (split_ret == FAIL) 5120 continue; 5121 } 5122 else /* first window: do autocmd for leaving this buffer */ 5123 --autocmd_no_leave; 5124 5125 /* 5126 * edit file "i" 5127 */ 5128 curwin->w_arg_idx = i; 5129 if (i == 0) 5130 { 5131 new_curwin = curwin; 5132 new_curtab = curtab; 5133 } 5134 (void)do_ecmd(0, alist_name(&AARGLIST(alist)[i]), NULL, NULL, 5135 ECMD_ONE, 5136 ((buf_hide(curwin->w_buffer) 5137 || bufIsChanged(curwin->w_buffer)) ? ECMD_HIDE : 0) 5138 + ECMD_OLDBUF, curwin); 5139 if (use_firstwin) 5140 ++autocmd_no_leave; 5141 use_firstwin = FALSE; 5142 } 5143 ui_breakcheck(); 5144 5145 /* When ":tab" was used open a new tab for a new window repeatedly. */ 5146 if (had_tab > 0 && tabpage_index(NULL) <= p_tpm) 5147 cmdmod.tab = 9999; 5148 } 5149 5150 /* Remove the "lock" on the argument list. */ 5151 alist_unlink(alist); 5152 5153 --autocmd_no_enter; 5154 5155 /* restore last referenced tabpage's curwin */ 5156 if (last_curtab != new_curtab) 5157 { 5158 if (valid_tabpage(last_curtab)) 5159 goto_tabpage_tp(last_curtab, TRUE, TRUE); 5160 if (win_valid(last_curwin)) 5161 win_enter(last_curwin, FALSE); 5162 } 5163 /* to window with first arg */ 5164 if (valid_tabpage(new_curtab)) 5165 goto_tabpage_tp(new_curtab, TRUE, TRUE); 5166 if (win_valid(new_curwin)) 5167 win_enter(new_curwin, FALSE); 5168 5169 --autocmd_no_leave; 5170 vim_free(opened); 5171 } 5172 5173 /* 5174 * Open a window for a number of buffers. 5175 */ 5176 void 5177 ex_buffer_all(exarg_T *eap) 5178 { 5179 buf_T *buf; 5180 win_T *wp, *wpnext; 5181 int split_ret = OK; 5182 int p_ea_save; 5183 int open_wins = 0; 5184 int r; 5185 int count; /* Maximum number of windows to open. */ 5186 int all; /* When TRUE also load inactive buffers. */ 5187 int had_tab = cmdmod.tab; 5188 tabpage_T *tpnext; 5189 5190 if (eap->addr_count == 0) /* make as many windows as possible */ 5191 count = 9999; 5192 else 5193 count = eap->line2; /* make as many windows as specified */ 5194 if (eap->cmdidx == CMD_unhide || eap->cmdidx == CMD_sunhide) 5195 all = FALSE; 5196 else 5197 all = TRUE; 5198 5199 setpcmark(); 5200 5201 #ifdef FEAT_GUI 5202 need_mouse_correct = TRUE; 5203 #endif 5204 5205 /* 5206 * Close superfluous windows (two windows for the same buffer). 5207 * Also close windows that are not full-width. 5208 */ 5209 if (had_tab > 0) 5210 goto_tabpage_tp(first_tabpage, TRUE, TRUE); 5211 for (;;) 5212 { 5213 tpnext = curtab->tp_next; 5214 for (wp = firstwin; wp != NULL; wp = wpnext) 5215 { 5216 wpnext = wp->w_next; 5217 if ((wp->w_buffer->b_nwindows > 1 5218 || ((cmdmod.split & WSP_VERT) 5219 ? wp->w_height + wp->w_status_height < Rows - p_ch 5220 - tabline_height() 5221 : wp->w_width != Columns) 5222 || (had_tab > 0 && wp != firstwin)) && !ONE_WINDOW 5223 && !(wp->w_closing || wp->w_buffer->b_locked > 0)) 5224 { 5225 win_close(wp, FALSE); 5226 wpnext = firstwin; /* just in case an autocommand does 5227 something strange with windows */ 5228 tpnext = first_tabpage; /* start all over... */ 5229 open_wins = 0; 5230 } 5231 else 5232 ++open_wins; 5233 } 5234 5235 /* Without the ":tab" modifier only do the current tab page. */ 5236 if (had_tab == 0 || tpnext == NULL) 5237 break; 5238 goto_tabpage_tp(tpnext, TRUE, TRUE); 5239 } 5240 5241 /* 5242 * Go through the buffer list. When a buffer doesn't have a window yet, 5243 * open one. Otherwise move the window to the right position. 5244 * Watch out for autocommands that delete buffers or windows! 5245 */ 5246 /* Don't execute Win/Buf Enter/Leave autocommands here. */ 5247 ++autocmd_no_enter; 5248 win_enter(lastwin, FALSE); 5249 ++autocmd_no_leave; 5250 for (buf = firstbuf; buf != NULL && open_wins < count; buf = buf->b_next) 5251 { 5252 /* Check if this buffer needs a window */ 5253 if ((!all && buf->b_ml.ml_mfp == NULL) || !buf->b_p_bl) 5254 continue; 5255 5256 if (had_tab != 0) 5257 { 5258 /* With the ":tab" modifier don't move the window. */ 5259 if (buf->b_nwindows > 0) 5260 wp = lastwin; /* buffer has a window, skip it */ 5261 else 5262 wp = NULL; 5263 } 5264 else 5265 { 5266 /* Check if this buffer already has a window */ 5267 FOR_ALL_WINDOWS(wp) 5268 if (wp->w_buffer == buf) 5269 break; 5270 /* If the buffer already has a window, move it */ 5271 if (wp != NULL) 5272 win_move_after(wp, curwin); 5273 } 5274 5275 if (wp == NULL && split_ret == OK) 5276 { 5277 bufref_T bufref; 5278 5279 set_bufref(&bufref, buf); 5280 5281 /* Split the window and put the buffer in it */ 5282 p_ea_save = p_ea; 5283 p_ea = TRUE; /* use space from all windows */ 5284 split_ret = win_split(0, WSP_ROOM | WSP_BELOW); 5285 ++open_wins; 5286 p_ea = p_ea_save; 5287 if (split_ret == FAIL) 5288 continue; 5289 5290 /* Open the buffer in this window. */ 5291 swap_exists_action = SEA_DIALOG; 5292 set_curbuf(buf, DOBUF_GOTO); 5293 if (!bufref_valid(&bufref)) 5294 { 5295 /* autocommands deleted the buffer!!! */ 5296 swap_exists_action = SEA_NONE; 5297 break; 5298 } 5299 if (swap_exists_action == SEA_QUIT) 5300 { 5301 #if defined(FEAT_EVAL) 5302 cleanup_T cs; 5303 5304 /* Reset the error/interrupt/exception state here so that 5305 * aborting() returns FALSE when closing a window. */ 5306 enter_cleanup(&cs); 5307 #endif 5308 5309 /* User selected Quit at ATTENTION prompt; close this window. */ 5310 win_close(curwin, TRUE); 5311 --open_wins; 5312 swap_exists_action = SEA_NONE; 5313 swap_exists_did_quit = TRUE; 5314 5315 #if defined(FEAT_EVAL) 5316 /* Restore the error/interrupt/exception state if not 5317 * discarded by a new aborting error, interrupt, or uncaught 5318 * exception. */ 5319 leave_cleanup(&cs); 5320 #endif 5321 } 5322 else 5323 handle_swap_exists(NULL); 5324 } 5325 5326 ui_breakcheck(); 5327 if (got_int) 5328 { 5329 (void)vgetc(); /* only break the file loading, not the rest */ 5330 break; 5331 } 5332 #ifdef FEAT_EVAL 5333 /* Autocommands deleted the buffer or aborted script processing!!! */ 5334 if (aborting()) 5335 break; 5336 #endif 5337 /* When ":tab" was used open a new tab for a new window repeatedly. */ 5338 if (had_tab > 0 && tabpage_index(NULL) <= p_tpm) 5339 cmdmod.tab = 9999; 5340 } 5341 --autocmd_no_enter; 5342 win_enter(firstwin, FALSE); /* back to first window */ 5343 --autocmd_no_leave; 5344 5345 /* 5346 * Close superfluous windows. 5347 */ 5348 for (wp = lastwin; open_wins > count; ) 5349 { 5350 r = (buf_hide(wp->w_buffer) || !bufIsChanged(wp->w_buffer) 5351 || autowrite(wp->w_buffer, FALSE) == OK); 5352 if (!win_valid(wp)) 5353 { 5354 /* BufWrite Autocommands made the window invalid, start over */ 5355 wp = lastwin; 5356 } 5357 else if (r) 5358 { 5359 win_close(wp, !buf_hide(wp->w_buffer)); 5360 --open_wins; 5361 wp = lastwin; 5362 } 5363 else 5364 { 5365 wp = wp->w_prev; 5366 if (wp == NULL) 5367 break; 5368 } 5369 } 5370 } 5371 5372 5373 static int chk_modeline(linenr_T, int); 5374 5375 /* 5376 * do_modelines() - process mode lines for the current file 5377 * 5378 * "flags" can be: 5379 * OPT_WINONLY only set options local to window 5380 * OPT_NOWIN don't set options local to window 5381 * 5382 * Returns immediately if the "ml" option isn't set. 5383 */ 5384 void 5385 do_modelines(int flags) 5386 { 5387 linenr_T lnum; 5388 int nmlines; 5389 static int entered = 0; 5390 5391 if (!curbuf->b_p_ml || (nmlines = (int)p_mls) == 0) 5392 return; 5393 5394 /* Disallow recursive entry here. Can happen when executing a modeline 5395 * triggers an autocommand, which reloads modelines with a ":do". */ 5396 if (entered) 5397 return; 5398 5399 ++entered; 5400 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count && lnum <= nmlines; 5401 ++lnum) 5402 if (chk_modeline(lnum, flags) == FAIL) 5403 nmlines = 0; 5404 5405 for (lnum = curbuf->b_ml.ml_line_count; lnum > 0 && lnum > nmlines 5406 && lnum > curbuf->b_ml.ml_line_count - nmlines; --lnum) 5407 if (chk_modeline(lnum, flags) == FAIL) 5408 nmlines = 0; 5409 --entered; 5410 } 5411 5412 #include "version.h" /* for version number */ 5413 5414 /* 5415 * chk_modeline() - check a single line for a mode string 5416 * Return FAIL if an error encountered. 5417 */ 5418 static int 5419 chk_modeline( 5420 linenr_T lnum, 5421 int flags) /* Same as for do_modelines(). */ 5422 { 5423 char_u *s; 5424 char_u *e; 5425 char_u *linecopy; /* local copy of any modeline found */ 5426 int prev; 5427 int vers; 5428 int end; 5429 int retval = OK; 5430 char_u *save_sourcing_name; 5431 linenr_T save_sourcing_lnum; 5432 #ifdef FEAT_EVAL 5433 sctx_T save_current_sctx; 5434 #endif 5435 5436 prev = -1; 5437 for (s = ml_get(lnum); *s != NUL; ++s) 5438 { 5439 if (prev == -1 || vim_isspace(prev)) 5440 { 5441 if ((prev != -1 && STRNCMP(s, "ex:", (size_t)3) == 0) 5442 || STRNCMP(s, "vi:", (size_t)3) == 0) 5443 break; 5444 /* Accept both "vim" and "Vim". */ 5445 if ((s[0] == 'v' || s[0] == 'V') && s[1] == 'i' && s[2] == 'm') 5446 { 5447 if (s[3] == '<' || s[3] == '=' || s[3] == '>') 5448 e = s + 4; 5449 else 5450 e = s + 3; 5451 vers = getdigits(&e); 5452 if (*e == ':' 5453 && (s[0] != 'V' 5454 || STRNCMP(skipwhite(e + 1), "set", 3) == 0) 5455 && (s[3] == ':' 5456 || (VIM_VERSION_100 >= vers && isdigit(s[3])) 5457 || (VIM_VERSION_100 < vers && s[3] == '<') 5458 || (VIM_VERSION_100 > vers && s[3] == '>') 5459 || (VIM_VERSION_100 == vers && s[3] == '='))) 5460 break; 5461 } 5462 } 5463 prev = *s; 5464 } 5465 5466 if (*s) 5467 { 5468 do /* skip over "ex:", "vi:" or "vim:" */ 5469 ++s; 5470 while (s[-1] != ':'); 5471 5472 s = linecopy = vim_strsave(s); /* copy the line, it will change */ 5473 if (linecopy == NULL) 5474 return FAIL; 5475 5476 save_sourcing_lnum = sourcing_lnum; 5477 save_sourcing_name = sourcing_name; 5478 sourcing_lnum = lnum; /* prepare for emsg() */ 5479 sourcing_name = (char_u *)"modelines"; 5480 5481 end = FALSE; 5482 while (end == FALSE) 5483 { 5484 s = skipwhite(s); 5485 if (*s == NUL) 5486 break; 5487 5488 /* 5489 * Find end of set command: ':' or end of line. 5490 * Skip over "\:", replacing it with ":". 5491 */ 5492 for (e = s; *e != ':' && *e != NUL; ++e) 5493 if (e[0] == '\\' && e[1] == ':') 5494 STRMOVE(e, e + 1); 5495 if (*e == NUL) 5496 end = TRUE; 5497 5498 /* 5499 * If there is a "set" command, require a terminating ':' and 5500 * ignore the stuff after the ':'. 5501 * "vi:set opt opt opt: foo" -- foo not interpreted 5502 * "vi:opt opt opt: foo" -- foo interpreted 5503 * Accept "se" for compatibility with Elvis. 5504 */ 5505 if (STRNCMP(s, "set ", (size_t)4) == 0 5506 || STRNCMP(s, "se ", (size_t)3) == 0) 5507 { 5508 if (*e != ':') /* no terminating ':'? */ 5509 break; 5510 end = TRUE; 5511 s = vim_strchr(s, ' ') + 1; 5512 } 5513 *e = NUL; /* truncate the set command */ 5514 5515 if (*s != NUL) /* skip over an empty "::" */ 5516 { 5517 int secure_save = secure; 5518 #ifdef FEAT_EVAL 5519 save_current_sctx = current_sctx; 5520 current_sctx.sc_sid = SID_MODELINE; 5521 current_sctx.sc_seq = 0; 5522 current_sctx.sc_lnum = 0; 5523 current_sctx.sc_version = 1; 5524 #endif 5525 // Make sure no risky things are executed as a side effect. 5526 secure = 1; 5527 5528 retval = do_set(s, OPT_MODELINE | OPT_LOCAL | flags); 5529 5530 secure = secure_save; 5531 #ifdef FEAT_EVAL 5532 current_sctx = save_current_sctx; 5533 #endif 5534 if (retval == FAIL) /* stop if error found */ 5535 break; 5536 } 5537 s = e + 1; /* advance to next part */ 5538 } 5539 5540 sourcing_lnum = save_sourcing_lnum; 5541 sourcing_name = save_sourcing_name; 5542 5543 vim_free(linecopy); 5544 } 5545 return retval; 5546 } 5547 5548 #if defined(FEAT_VIMINFO) || defined(PROTO) 5549 int 5550 read_viminfo_bufferlist( 5551 vir_T *virp, 5552 int writing) 5553 { 5554 char_u *tab; 5555 linenr_T lnum; 5556 colnr_T col; 5557 buf_T *buf; 5558 char_u *sfname; 5559 char_u *xline; 5560 5561 /* Handle long line and escaped characters. */ 5562 xline = viminfo_readstring(virp, 1, FALSE); 5563 5564 /* don't read in if there are files on the command-line or if writing: */ 5565 if (xline != NULL && !writing && ARGCOUNT == 0 5566 && find_viminfo_parameter('%') != NULL) 5567 { 5568 /* Format is: <fname> Tab <lnum> Tab <col>. 5569 * Watch out for a Tab in the file name, work from the end. */ 5570 lnum = 0; 5571 col = 0; 5572 tab = vim_strrchr(xline, '\t'); 5573 if (tab != NULL) 5574 { 5575 *tab++ = '\0'; 5576 col = (colnr_T)atoi((char *)tab); 5577 tab = vim_strrchr(xline, '\t'); 5578 if (tab != NULL) 5579 { 5580 *tab++ = '\0'; 5581 lnum = atol((char *)tab); 5582 } 5583 } 5584 5585 /* Expand "~/" in the file name at "line + 1" to a full path. 5586 * Then try shortening it by comparing with the current directory */ 5587 expand_env(xline, NameBuff, MAXPATHL); 5588 sfname = shorten_fname1(NameBuff); 5589 5590 buf = buflist_new(NameBuff, sfname, (linenr_T)0, BLN_LISTED); 5591 if (buf != NULL) /* just in case... */ 5592 { 5593 buf->b_last_cursor.lnum = lnum; 5594 buf->b_last_cursor.col = col; 5595 buflist_setfpos(buf, curwin, lnum, col, FALSE); 5596 } 5597 } 5598 vim_free(xline); 5599 5600 return viminfo_readline(virp); 5601 } 5602 5603 void 5604 write_viminfo_bufferlist(FILE *fp) 5605 { 5606 buf_T *buf; 5607 win_T *win; 5608 tabpage_T *tp; 5609 char_u *line; 5610 int max_buffers; 5611 5612 if (find_viminfo_parameter('%') == NULL) 5613 return; 5614 5615 /* Without a number -1 is returned: do all buffers. */ 5616 max_buffers = get_viminfo_parameter('%'); 5617 5618 /* Allocate room for the file name, lnum and col. */ 5619 #define LINE_BUF_LEN (MAXPATHL + 40) 5620 line = alloc(LINE_BUF_LEN); 5621 if (line == NULL) 5622 return; 5623 5624 FOR_ALL_TAB_WINDOWS(tp, win) 5625 set_last_cursor(win); 5626 5627 fputs(_("\n# Buffer list:\n"), fp); 5628 FOR_ALL_BUFFERS(buf) 5629 { 5630 if (buf->b_fname == NULL 5631 || !buf->b_p_bl 5632 #ifdef FEAT_QUICKFIX 5633 || bt_quickfix(buf) 5634 #endif 5635 #ifdef FEAT_TERMINAL 5636 || bt_terminal(buf) 5637 #endif 5638 || removable(buf->b_ffname)) 5639 continue; 5640 5641 if (max_buffers-- == 0) 5642 break; 5643 putc('%', fp); 5644 home_replace(NULL, buf->b_ffname, line, MAXPATHL, TRUE); 5645 vim_snprintf_add((char *)line, LINE_BUF_LEN, "\t%ld\t%d", 5646 (long)buf->b_last_cursor.lnum, 5647 buf->b_last_cursor.col); 5648 viminfo_writestring(fp, line); 5649 } 5650 vim_free(line); 5651 } 5652 #endif 5653 5654 /* 5655 * Return TRUE if "buf" is a normal buffer, 'buftype' is empty. 5656 */ 5657 int 5658 bt_normal(buf_T *buf) 5659 { 5660 return buf != NULL && buf->b_p_bt[0] == NUL; 5661 } 5662 5663 #if defined(FEAT_QUICKFIX) || defined(PROTO) 5664 /* 5665 * Return TRUE if "buf" is the quickfix buffer. 5666 */ 5667 int 5668 bt_quickfix(buf_T *buf) 5669 { 5670 return buf != NULL && buf->b_p_bt[0] == 'q'; 5671 } 5672 #endif 5673 5674 #if defined(FEAT_TERMINAL) || defined(PROTO) 5675 /* 5676 * Return TRUE if "buf" is a terminal buffer. 5677 */ 5678 int 5679 bt_terminal(buf_T *buf) 5680 { 5681 return buf != NULL && buf->b_p_bt[0] == 't'; 5682 } 5683 #endif 5684 5685 /* 5686 * Return TRUE if "buf" is a help buffer. 5687 */ 5688 int 5689 bt_help(buf_T *buf) 5690 { 5691 return buf != NULL && buf->b_help; 5692 } 5693 5694 /* 5695 * Return TRUE if "buf" is a prompt buffer. 5696 */ 5697 int 5698 bt_prompt(buf_T *buf) 5699 { 5700 return buf != NULL && buf->b_p_bt[0] == 'p' && buf->b_p_bt[1] == 'r'; 5701 } 5702 5703 /* 5704 * Return TRUE if "buf" is a buffer for a popup window. 5705 */ 5706 int 5707 bt_popup(buf_T *buf) 5708 { 5709 return buf != NULL && buf->b_p_bt != NULL 5710 && buf->b_p_bt[0] == 'p' && buf->b_p_bt[1] == 'o'; 5711 } 5712 5713 /* 5714 * Return TRUE if "buf" is a "nofile", "acwrite", "terminal" or "prompt" 5715 * buffer. This means the buffer name is not a file name. 5716 */ 5717 int 5718 bt_nofilename(buf_T *buf) 5719 { 5720 return buf != NULL && ((buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f') 5721 || buf->b_p_bt[0] == 'a' 5722 || buf->b_p_bt[0] == 't' 5723 || buf->b_p_bt[0] == 'p'); 5724 } 5725 5726 /* 5727 * Return TRUE if "buf" has 'buftype' set to "nofile". 5728 */ 5729 int 5730 bt_nofile(buf_T *buf) 5731 { 5732 return buf != NULL && buf->b_p_bt[0] == 'n' && buf->b_p_bt[2] == 'f'; 5733 } 5734 5735 /* 5736 * Return TRUE if "buf" is a "nowrite", "nofile", "terminal" or "prompt" 5737 * buffer. 5738 */ 5739 int 5740 bt_dontwrite(buf_T *buf) 5741 { 5742 return buf != NULL && (buf->b_p_bt[0] == 'n' 5743 || buf->b_p_bt[0] == 't' 5744 || buf->b_p_bt[0] == 'p'); 5745 } 5746 5747 #if defined(FEAT_QUICKFIX) || defined(PROTO) 5748 int 5749 bt_dontwrite_msg(buf_T *buf) 5750 { 5751 if (bt_dontwrite(buf)) 5752 { 5753 emsg(_("E382: Cannot write, 'buftype' option is set")); 5754 return TRUE; 5755 } 5756 return FALSE; 5757 } 5758 #endif 5759 5760 /* 5761 * Return TRUE if the buffer should be hidden, according to 'hidden', ":hide" 5762 * and 'bufhidden'. 5763 */ 5764 int 5765 buf_hide(buf_T *buf) 5766 { 5767 /* 'bufhidden' overrules 'hidden' and ":hide", check it first */ 5768 switch (buf->b_p_bh[0]) 5769 { 5770 case 'u': /* "unload" */ 5771 case 'w': /* "wipe" */ 5772 case 'd': return FALSE; /* "delete" */ 5773 case 'h': return TRUE; /* "hide" */ 5774 } 5775 return (p_hid || cmdmod.hide); 5776 } 5777 5778 /* 5779 * Return special buffer name. 5780 * Returns NULL when the buffer has a normal file name. 5781 */ 5782 char_u * 5783 buf_spname(buf_T *buf) 5784 { 5785 #if defined(FEAT_QUICKFIX) 5786 if (bt_quickfix(buf)) 5787 { 5788 /* 5789 * Differentiate between the quickfix and location list buffers using 5790 * the buffer number stored in the global quickfix stack. 5791 */ 5792 if (buf->b_fnum == qf_stack_get_bufnr()) 5793 return (char_u *)_(msg_qflist); 5794 else 5795 return (char_u *)_(msg_loclist); 5796 } 5797 #endif 5798 5799 /* There is no _file_ when 'buftype' is "nofile", b_sfname 5800 * contains the name as specified by the user. */ 5801 if (bt_nofilename(buf)) 5802 { 5803 #ifdef FEAT_TERMINAL 5804 if (buf->b_term != NULL) 5805 return term_get_status_text(buf->b_term); 5806 #endif 5807 if (buf->b_fname != NULL) 5808 return buf->b_fname; 5809 #ifdef FEAT_JOB_CHANNEL 5810 if (bt_prompt(buf)) 5811 return (char_u *)_("[Prompt]"); 5812 #endif 5813 #ifdef FEAT_TEXT_PROP 5814 if (bt_popup(buf)) 5815 return (char_u *)_("[Popup]"); 5816 #endif 5817 return (char_u *)_("[Scratch]"); 5818 } 5819 5820 if (buf->b_fname == NULL) 5821 return (char_u *)_("[No Name]"); 5822 return NULL; 5823 } 5824 5825 #if defined(FEAT_JOB_CHANNEL) \ 5826 || defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) \ 5827 || defined(PROTO) 5828 # define SWITCH_TO_WIN 5829 5830 /* 5831 * Find a window that contains "buf" and switch to it. 5832 * If there is no such window, use the current window and change "curbuf". 5833 * Caller must initialize save_curbuf to NULL. 5834 * restore_win_for_buf() MUST be called later! 5835 */ 5836 void 5837 switch_to_win_for_buf( 5838 buf_T *buf, 5839 win_T **save_curwinp, 5840 tabpage_T **save_curtabp, 5841 bufref_T *save_curbuf) 5842 { 5843 win_T *wp; 5844 tabpage_T *tp; 5845 5846 if (find_win_for_buf(buf, &wp, &tp) == FAIL) 5847 switch_buffer(save_curbuf, buf); 5848 else if (switch_win(save_curwinp, save_curtabp, wp, tp, TRUE) == FAIL) 5849 { 5850 restore_win(*save_curwinp, *save_curtabp, TRUE); 5851 switch_buffer(save_curbuf, buf); 5852 } 5853 } 5854 5855 void 5856 restore_win_for_buf( 5857 win_T *save_curwin, 5858 tabpage_T *save_curtab, 5859 bufref_T *save_curbuf) 5860 { 5861 if (save_curbuf->br_buf == NULL) 5862 restore_win(save_curwin, save_curtab, TRUE); 5863 else 5864 restore_buffer(save_curbuf); 5865 } 5866 #endif 5867 5868 #if defined(FEAT_QUICKFIX) || defined(SWITCH_TO_WIN) || defined(PROTO) 5869 /* 5870 * Find a window for buffer "buf". 5871 * If found OK is returned and "wp" and "tp" are set to the window and tabpage. 5872 * If not found FAIL is returned. 5873 */ 5874 int 5875 find_win_for_buf( 5876 buf_T *buf, 5877 win_T **wp, 5878 tabpage_T **tp) 5879 { 5880 FOR_ALL_TAB_WINDOWS(*tp, *wp) 5881 if ((*wp)->w_buffer == buf) 5882 goto win_found; 5883 return FAIL; 5884 win_found: 5885 return OK; 5886 } 5887 #endif 5888 5889 /* 5890 * Set 'buflisted' for curbuf to "on" and trigger autocommands if it changed. 5891 */ 5892 void 5893 set_buflisted(int on) 5894 { 5895 if (on != curbuf->b_p_bl) 5896 { 5897 curbuf->b_p_bl = on; 5898 if (on) 5899 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, curbuf); 5900 else 5901 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); 5902 } 5903 } 5904 5905 /* 5906 * Read the file for "buf" again and check if the contents changed. 5907 * Return TRUE if it changed or this could not be checked. 5908 */ 5909 int 5910 buf_contents_changed(buf_T *buf) 5911 { 5912 buf_T *newbuf; 5913 int differ = TRUE; 5914 linenr_T lnum; 5915 aco_save_T aco; 5916 exarg_T ea; 5917 5918 /* Allocate a buffer without putting it in the buffer list. */ 5919 newbuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY); 5920 if (newbuf == NULL) 5921 return TRUE; 5922 5923 /* Force the 'fileencoding' and 'fileformat' to be equal. */ 5924 if (prep_exarg(&ea, buf) == FAIL) 5925 { 5926 wipe_buffer(newbuf, FALSE); 5927 return TRUE; 5928 } 5929 5930 /* set curwin/curbuf to buf and save a few things */ 5931 aucmd_prepbuf(&aco, newbuf); 5932 5933 if (ml_open(curbuf) == OK 5934 && readfile(buf->b_ffname, buf->b_fname, 5935 (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, 5936 &ea, READ_NEW | READ_DUMMY) == OK) 5937 { 5938 /* compare the two files line by line */ 5939 if (buf->b_ml.ml_line_count == curbuf->b_ml.ml_line_count) 5940 { 5941 differ = FALSE; 5942 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) 5943 if (STRCMP(ml_get_buf(buf, lnum, FALSE), ml_get(lnum)) != 0) 5944 { 5945 differ = TRUE; 5946 break; 5947 } 5948 } 5949 } 5950 vim_free(ea.cmd); 5951 5952 /* restore curwin/curbuf and a few other things */ 5953 aucmd_restbuf(&aco); 5954 5955 if (curbuf != newbuf) /* safety check */ 5956 wipe_buffer(newbuf, FALSE); 5957 5958 return differ; 5959 } 5960 5961 /* 5962 * Wipe out a buffer and decrement the last buffer number if it was used for 5963 * this buffer. Call this to wipe out a temp buffer that does not contain any 5964 * marks. 5965 */ 5966 void 5967 wipe_buffer( 5968 buf_T *buf, 5969 int aucmd UNUSED) /* When TRUE trigger autocommands. */ 5970 { 5971 if (buf->b_fnum == top_file_num - 1) 5972 --top_file_num; 5973 5974 if (!aucmd) /* Don't trigger BufDelete autocommands here. */ 5975 block_autocmds(); 5976 5977 close_buffer(NULL, buf, DOBUF_WIPE, FALSE); 5978 5979 if (!aucmd) 5980 unblock_autocmds(); 5981 } 5982 5983 #if defined(FEAT_EVAL) || defined(PROTO) 5984 /* 5985 * Mark references in functions of buffers. 5986 */ 5987 int 5988 set_ref_in_buffers(int copyID) 5989 { 5990 int abort = FALSE; 5991 buf_T *bp; 5992 5993 FOR_ALL_BUFFERS(bp) 5994 { 5995 listener_T *lnr; 5996 typval_T tv; 5997 5998 for (lnr = bp->b_listener; !abort && lnr != NULL; lnr = lnr->lr_next) 5999 { 6000 if (lnr->lr_callback.cb_partial != NULL) 6001 { 6002 tv.v_type = VAR_PARTIAL; 6003 tv.vval.v_partial = lnr->lr_callback.cb_partial; 6004 abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL); 6005 } 6006 } 6007 # ifdef FEAT_JOB_CHANNEL 6008 if (!abort && bp->b_prompt_callback.cb_partial != NULL) 6009 { 6010 tv.v_type = VAR_PARTIAL; 6011 tv.vval.v_partial = bp->b_prompt_callback.cb_partial; 6012 abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL); 6013 } 6014 if (!abort && bp->b_prompt_interrupt.cb_partial != NULL) 6015 { 6016 tv.v_type = VAR_PARTIAL; 6017 tv.vval.v_partial = bp->b_prompt_interrupt.cb_partial; 6018 abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL); 6019 } 6020 # endif 6021 if (abort) 6022 break; 6023 } 6024 return abort; 6025 } 6026 #endif 6027