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 * misc1.c: functions that didn't seem to fit elsewhere 12 */ 13 14 #include "vim.h" 15 #include "version.h" 16 17 #if defined(__HAIKU__) 18 # include <storage/FindDirectory.h> 19 #endif 20 21 #if defined(MSWIN) 22 # include <lm.h> 23 #endif 24 25 #define URL_SLASH 1 // path_is_url() has found "://" 26 #define URL_BACKSLASH 2 // path_is_url() has found ":\\" 27 28 // All user names (for ~user completion as done by shell). 29 static garray_T ga_users; 30 31 /* 32 * get_leader_len() returns the length in bytes of the prefix of the given 33 * string which introduces a comment. If this string is not a comment then 34 * 0 is returned. 35 * When "flags" is not NULL, it is set to point to the flags of the recognized 36 * comment leader. 37 * "backward" must be true for the "O" command. 38 * If "include_space" is set, include trailing whitespace while calculating the 39 * length. 40 */ 41 int 42 get_leader_len( 43 char_u *line, 44 char_u **flags, 45 int backward, 46 int include_space) 47 { 48 int i, j; 49 int result; 50 int got_com = FALSE; 51 int found_one; 52 char_u part_buf[COM_MAX_LEN]; // buffer for one option part 53 char_u *string; // pointer to comment string 54 char_u *list; 55 int middle_match_len = 0; 56 char_u *prev_list; 57 char_u *saved_flags = NULL; 58 59 result = i = 0; 60 while (VIM_ISWHITE(line[i])) // leading white space is ignored 61 ++i; 62 63 /* 64 * Repeat to match several nested comment strings. 65 */ 66 while (line[i] != NUL) 67 { 68 /* 69 * scan through the 'comments' option for a match 70 */ 71 found_one = FALSE; 72 for (list = curbuf->b_p_com; *list; ) 73 { 74 // Get one option part into part_buf[]. Advance "list" to next 75 // one. Put "string" at start of string. 76 if (!got_com && flags != NULL) 77 *flags = list; // remember where flags started 78 prev_list = list; 79 (void)copy_option_part(&list, part_buf, COM_MAX_LEN, ","); 80 string = vim_strchr(part_buf, ':'); 81 if (string == NULL) // missing ':', ignore this part 82 continue; 83 *string++ = NUL; // isolate flags from string 84 85 // If we found a middle match previously, use that match when this 86 // is not a middle or end. 87 if (middle_match_len != 0 88 && vim_strchr(part_buf, COM_MIDDLE) == NULL 89 && vim_strchr(part_buf, COM_END) == NULL) 90 break; 91 92 // When we already found a nested comment, only accept further 93 // nested comments. 94 if (got_com && vim_strchr(part_buf, COM_NEST) == NULL) 95 continue; 96 97 // When 'O' flag present and using "O" command skip this one. 98 if (backward && vim_strchr(part_buf, COM_NOBACK) != NULL) 99 continue; 100 101 // Line contents and string must match. 102 // When string starts with white space, must have some white space 103 // (but the amount does not need to match, there might be a mix of 104 // TABs and spaces). 105 if (VIM_ISWHITE(string[0])) 106 { 107 if (i == 0 || !VIM_ISWHITE(line[i - 1])) 108 continue; // missing white space 109 while (VIM_ISWHITE(string[0])) 110 ++string; 111 } 112 for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j) 113 ; 114 if (string[j] != NUL) 115 continue; // string doesn't match 116 117 // When 'b' flag used, there must be white space or an 118 // end-of-line after the string in the line. 119 if (vim_strchr(part_buf, COM_BLANK) != NULL 120 && !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL) 121 continue; 122 123 // We have found a match, stop searching unless this is a middle 124 // comment. The middle comment can be a substring of the end 125 // comment in which case it's better to return the length of the 126 // end comment and its flags. Thus we keep searching with middle 127 // and end matches and use an end match if it matches better. 128 if (vim_strchr(part_buf, COM_MIDDLE) != NULL) 129 { 130 if (middle_match_len == 0) 131 { 132 middle_match_len = j; 133 saved_flags = prev_list; 134 } 135 continue; 136 } 137 if (middle_match_len != 0 && j > middle_match_len) 138 // Use this match instead of the middle match, since it's a 139 // longer thus better match. 140 middle_match_len = 0; 141 142 if (middle_match_len == 0) 143 i += j; 144 found_one = TRUE; 145 break; 146 } 147 148 if (middle_match_len != 0) 149 { 150 // Use the previously found middle match after failing to find a 151 // match with an end. 152 if (!got_com && flags != NULL) 153 *flags = saved_flags; 154 i += middle_match_len; 155 found_one = TRUE; 156 } 157 158 // No match found, stop scanning. 159 if (!found_one) 160 break; 161 162 result = i; 163 164 // Include any trailing white space. 165 while (VIM_ISWHITE(line[i])) 166 ++i; 167 168 if (include_space) 169 result = i; 170 171 // If this comment doesn't nest, stop here. 172 got_com = TRUE; 173 if (vim_strchr(part_buf, COM_NEST) == NULL) 174 break; 175 } 176 return result; 177 } 178 179 /* 180 * Return the offset at which the last comment in line starts. If there is no 181 * comment in the whole line, -1 is returned. 182 * 183 * When "flags" is not null, it is set to point to the flags describing the 184 * recognized comment leader. 185 */ 186 int 187 get_last_leader_offset(char_u *line, char_u **flags) 188 { 189 int result = -1; 190 int i, j; 191 int lower_check_bound = 0; 192 char_u *string; 193 char_u *com_leader; 194 char_u *com_flags; 195 char_u *list; 196 int found_one; 197 char_u part_buf[COM_MAX_LEN]; // buffer for one option part 198 199 /* 200 * Repeat to match several nested comment strings. 201 */ 202 i = (int)STRLEN(line); 203 while (--i >= lower_check_bound) 204 { 205 /* 206 * scan through the 'comments' option for a match 207 */ 208 found_one = FALSE; 209 for (list = curbuf->b_p_com; *list; ) 210 { 211 char_u *flags_save = list; 212 213 /* 214 * Get one option part into part_buf[]. Advance list to next one. 215 * put string at start of string. 216 */ 217 (void)copy_option_part(&list, part_buf, COM_MAX_LEN, ","); 218 string = vim_strchr(part_buf, ':'); 219 if (string == NULL) // If everything is fine, this cannot actually 220 // happen. 221 continue; 222 *string++ = NUL; // Isolate flags from string. 223 com_leader = string; 224 225 /* 226 * Line contents and string must match. 227 * When string starts with white space, must have some white space 228 * (but the amount does not need to match, there might be a mix of 229 * TABs and spaces). 230 */ 231 if (VIM_ISWHITE(string[0])) 232 { 233 if (i == 0 || !VIM_ISWHITE(line[i - 1])) 234 continue; 235 while (VIM_ISWHITE(*string)) 236 ++string; 237 } 238 for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j) 239 /* do nothing */; 240 if (string[j] != NUL) 241 continue; 242 243 /* 244 * When 'b' flag used, there must be white space or an 245 * end-of-line after the string in the line. 246 */ 247 if (vim_strchr(part_buf, COM_BLANK) != NULL 248 && !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL) 249 continue; 250 251 if (vim_strchr(part_buf, COM_MIDDLE) != NULL) 252 { 253 // For a middlepart comment, only consider it to match if 254 // everything before the current position in the line is 255 // whitespace. Otherwise we would think we are inside a 256 // comment if the middle part appears somewhere in the middle 257 // of the line. E.g. for C the "*" appears often. 258 for (j = 0; VIM_ISWHITE(line[j]) && j <= i; j++) 259 ; 260 if (j < i) 261 continue; 262 } 263 264 /* 265 * We have found a match, stop searching. 266 */ 267 found_one = TRUE; 268 269 if (flags) 270 *flags = flags_save; 271 com_flags = flags_save; 272 273 break; 274 } 275 276 if (found_one) 277 { 278 char_u part_buf2[COM_MAX_LEN]; // buffer for one option part 279 int len1, len2, off; 280 281 result = i; 282 /* 283 * If this comment nests, continue searching. 284 */ 285 if (vim_strchr(part_buf, COM_NEST) != NULL) 286 continue; 287 288 lower_check_bound = i; 289 290 // Let's verify whether the comment leader found is a substring 291 // of other comment leaders. If it is, let's adjust the 292 // lower_check_bound so that we make sure that we have determined 293 // the comment leader correctly. 294 295 while (VIM_ISWHITE(*com_leader)) 296 ++com_leader; 297 len1 = (int)STRLEN(com_leader); 298 299 for (list = curbuf->b_p_com; *list; ) 300 { 301 char_u *flags_save = list; 302 303 (void)copy_option_part(&list, part_buf2, COM_MAX_LEN, ","); 304 if (flags_save == com_flags) 305 continue; 306 string = vim_strchr(part_buf2, ':'); 307 ++string; 308 while (VIM_ISWHITE(*string)) 309 ++string; 310 len2 = (int)STRLEN(string); 311 if (len2 == 0) 312 continue; 313 314 // Now we have to verify whether string ends with a substring 315 // beginning the com_leader. 316 for (off = (len2 > i ? i : len2); off > 0 && off + len1 > len2;) 317 { 318 --off; 319 if (!STRNCMP(string + off, com_leader, len2 - off)) 320 { 321 if (i - off < lower_check_bound) 322 lower_check_bound = i - off; 323 } 324 } 325 } 326 } 327 } 328 return result; 329 } 330 331 /* 332 * Return the number of window lines occupied by buffer line "lnum". 333 */ 334 int 335 plines(linenr_T lnum) 336 { 337 return plines_win(curwin, lnum, TRUE); 338 } 339 340 int 341 plines_win( 342 win_T *wp, 343 linenr_T lnum, 344 int winheight) // when TRUE limit to window height 345 { 346 #if defined(FEAT_DIFF) || defined(PROTO) 347 // Check for filler lines above this buffer line. When folded the result 348 // is one line anyway. 349 return plines_win_nofill(wp, lnum, winheight) + diff_check_fill(wp, lnum); 350 } 351 352 int 353 plines_nofill(linenr_T lnum) 354 { 355 return plines_win_nofill(curwin, lnum, TRUE); 356 } 357 358 int 359 plines_win_nofill( 360 win_T *wp, 361 linenr_T lnum, 362 int winheight) // when TRUE limit to window height 363 { 364 #endif 365 int lines; 366 367 if (!wp->w_p_wrap) 368 return 1; 369 370 if (wp->w_width == 0) 371 return 1; 372 373 #ifdef FEAT_FOLDING 374 // A folded lines is handled just like an empty line. 375 // NOTE: Caller must handle lines that are MAYBE folded. 376 if (lineFolded(wp, lnum) == TRUE) 377 return 1; 378 #endif 379 380 lines = plines_win_nofold(wp, lnum); 381 if (winheight > 0 && lines > wp->w_height) 382 return (int)wp->w_height; 383 return lines; 384 } 385 386 /* 387 * Return number of window lines physical line "lnum" will occupy in window 388 * "wp". Does not care about folding, 'wrap' or 'diff'. 389 */ 390 int 391 plines_win_nofold(win_T *wp, linenr_T lnum) 392 { 393 char_u *s; 394 long col; 395 int width; 396 397 s = ml_get_buf(wp->w_buffer, lnum, FALSE); 398 if (*s == NUL) // empty line 399 return 1; 400 col = win_linetabsize(wp, s, (colnr_T)MAXCOL); 401 402 /* 403 * If list mode is on, then the '$' at the end of the line may take up one 404 * extra column. 405 */ 406 if (wp->w_p_list && wp->w_lcs_chars.eol != NUL) 407 col += 1; 408 409 /* 410 * Add column offset for 'number', 'relativenumber' and 'foldcolumn'. 411 */ 412 width = wp->w_width - win_col_off(wp); 413 if (width <= 0) 414 return 32000; 415 if (col <= width) 416 return 1; 417 col -= width; 418 width += win_col_off2(wp); 419 return (col + (width - 1)) / width + 1; 420 } 421 422 /* 423 * Like plines_win(), but only reports the number of physical screen lines 424 * used from the start of the line to the given column number. 425 */ 426 int 427 plines_win_col(win_T *wp, linenr_T lnum, long column) 428 { 429 long col; 430 char_u *s; 431 int lines = 0; 432 int width; 433 char_u *line; 434 435 #ifdef FEAT_DIFF 436 // Check for filler lines above this buffer line. When folded the result 437 // is one line anyway. 438 lines = diff_check_fill(wp, lnum); 439 #endif 440 441 if (!wp->w_p_wrap) 442 return lines + 1; 443 444 if (wp->w_width == 0) 445 return lines + 1; 446 447 line = s = ml_get_buf(wp->w_buffer, lnum, FALSE); 448 449 col = 0; 450 while (*s != NUL && --column >= 0) 451 { 452 col += win_lbr_chartabsize(wp, line, s, (colnr_T)col, NULL); 453 MB_PTR_ADV(s); 454 } 455 456 /* 457 * If *s is a TAB, and the TAB is not displayed as ^I, and we're not in 458 * INSERT mode, then col must be adjusted so that it represents the last 459 * screen position of the TAB. This only fixes an error when the TAB wraps 460 * from one screen line to the next (when 'columns' is not a multiple of 461 * 'ts') -- webb. 462 */ 463 if (*s == TAB && (State & NORMAL) && (!wp->w_p_list || 464 wp->w_lcs_chars.tab1)) 465 col += win_lbr_chartabsize(wp, line, s, (colnr_T)col, NULL) - 1; 466 467 /* 468 * Add column offset for 'number', 'relativenumber', 'foldcolumn', etc. 469 */ 470 width = wp->w_width - win_col_off(wp); 471 if (width <= 0) 472 return 9999; 473 474 lines += 1; 475 if (col > width) 476 lines += (col - width) / (width + win_col_off2(wp)) + 1; 477 return lines; 478 } 479 480 int 481 plines_m_win(win_T *wp, linenr_T first, linenr_T last) 482 { 483 int count = 0; 484 485 while (first <= last) 486 { 487 #ifdef FEAT_FOLDING 488 int x; 489 490 // Check if there are any really folded lines, but also included lines 491 // that are maybe folded. 492 x = foldedCount(wp, first, NULL); 493 if (x > 0) 494 { 495 ++count; // count 1 for "+-- folded" line 496 first += x; 497 } 498 else 499 #endif 500 { 501 #ifdef FEAT_DIFF 502 if (first == wp->w_topline) 503 count += plines_win_nofill(wp, first, TRUE) + wp->w_topfill; 504 else 505 #endif 506 count += plines_win(wp, first, TRUE); 507 ++first; 508 } 509 } 510 return (count); 511 } 512 513 int 514 gchar_pos(pos_T *pos) 515 { 516 char_u *ptr; 517 518 // When searching columns is sometimes put at the end of a line. 519 if (pos->col == MAXCOL) 520 return NUL; 521 ptr = ml_get_pos(pos); 522 if (has_mbyte) 523 return (*mb_ptr2char)(ptr); 524 return (int)*ptr; 525 } 526 527 int 528 gchar_cursor(void) 529 { 530 if (has_mbyte) 531 return (*mb_ptr2char)(ml_get_cursor()); 532 return (int)*ml_get_cursor(); 533 } 534 535 /* 536 * Write a character at the current cursor position. 537 * It is directly written into the block. 538 */ 539 void 540 pchar_cursor(int c) 541 { 542 *(ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE) 543 + curwin->w_cursor.col) = c; 544 } 545 546 /* 547 * Skip to next part of an option argument: Skip space and comma. 548 */ 549 char_u * 550 skip_to_option_part(char_u *p) 551 { 552 if (*p == ',') 553 ++p; 554 while (*p == ' ') 555 ++p; 556 return p; 557 } 558 559 /* 560 * check_status: called when the status bars for the buffer 'buf' 561 * need to be updated 562 */ 563 void 564 check_status(buf_T *buf) 565 { 566 win_T *wp; 567 568 FOR_ALL_WINDOWS(wp) 569 if (wp->w_buffer == buf && wp->w_status_height) 570 { 571 wp->w_redr_status = TRUE; 572 if (must_redraw < VALID) 573 must_redraw = VALID; 574 } 575 } 576 577 /* 578 * Ask for a reply from the user, a 'y' or a 'n'. 579 * No other characters are accepted, the message is repeated until a valid 580 * reply is entered or CTRL-C is hit. 581 * If direct is TRUE, don't use vgetc() but ui_inchar(), don't get characters 582 * from any buffers but directly from the user. 583 * 584 * return the 'y' or 'n' 585 */ 586 int 587 ask_yesno(char_u *str, int direct) 588 { 589 int r = ' '; 590 int save_State = State; 591 592 if (exiting) // put terminal in raw mode for this question 593 settmode(TMODE_RAW); 594 ++no_wait_return; 595 #ifdef USE_ON_FLY_SCROLL 596 dont_scroll = TRUE; // disallow scrolling here 597 #endif 598 State = CONFIRM; // mouse behaves like with :confirm 599 setmouse(); // disables mouse for xterm 600 ++no_mapping; 601 ++allow_keys; // no mapping here, but recognize keys 602 603 while (r != 'y' && r != 'n') 604 { 605 // same highlighting as for wait_return 606 smsg_attr(HL_ATTR(HLF_R), "%s (y/n)?", str); 607 if (direct) 608 r = get_keystroke(); 609 else 610 r = plain_vgetc(); 611 if (r == Ctrl_C || r == ESC) 612 r = 'n'; 613 msg_putchar(r); // show what you typed 614 out_flush(); 615 } 616 --no_wait_return; 617 State = save_State; 618 setmouse(); 619 --no_mapping; 620 --allow_keys; 621 622 return r; 623 } 624 625 #if defined(FEAT_EVAL) || defined(PROTO) 626 627 /* 628 * "mode()" function 629 */ 630 void 631 f_mode(typval_T *argvars, typval_T *rettv) 632 { 633 char_u buf[4]; 634 635 CLEAR_FIELD(buf); 636 637 if (time_for_testing == 93784) 638 { 639 // Testing the two-character code. 640 buf[0] = 'x'; 641 buf[1] = '!'; 642 } 643 #ifdef FEAT_TERMINAL 644 else if (term_use_loop()) 645 buf[0] = 't'; 646 #endif 647 else if (VIsual_active) 648 { 649 if (VIsual_select) 650 buf[0] = VIsual_mode + 's' - 'v'; 651 else 652 buf[0] = VIsual_mode; 653 } 654 else if (State == HITRETURN || State == ASKMORE || State == SETWSIZE 655 || State == CONFIRM) 656 { 657 buf[0] = 'r'; 658 if (State == ASKMORE) 659 buf[1] = 'm'; 660 else if (State == CONFIRM) 661 buf[1] = '?'; 662 } 663 else if (State == EXTERNCMD) 664 buf[0] = '!'; 665 else if (State & INSERT) 666 { 667 if (State & VREPLACE_FLAG) 668 { 669 buf[0] = 'R'; 670 buf[1] = 'v'; 671 } 672 else 673 { 674 if (State & REPLACE_FLAG) 675 buf[0] = 'R'; 676 else 677 buf[0] = 'i'; 678 if (ins_compl_active()) 679 buf[1] = 'c'; 680 else if (ctrl_x_mode_not_defined_yet()) 681 buf[1] = 'x'; 682 } 683 } 684 else if ((State & CMDLINE) || exmode_active) 685 { 686 buf[0] = 'c'; 687 if (exmode_active == EXMODE_VIM) 688 buf[1] = 'v'; 689 else if (exmode_active == EXMODE_NORMAL) 690 buf[1] = 'e'; 691 } 692 else 693 { 694 buf[0] = 'n'; 695 if (finish_op) 696 { 697 buf[1] = 'o'; 698 // to be able to detect force-linewise/blockwise/characterwise operations 699 buf[2] = motion_force; 700 } 701 else if (restart_edit == 'I' || restart_edit == 'R' 702 || restart_edit == 'V') 703 { 704 buf[1] = 'i'; 705 buf[2] = restart_edit; 706 } 707 } 708 709 // Clear out the minor mode when the argument is not a non-zero number or 710 // non-empty string. 711 if (!non_zero_arg(&argvars[0])) 712 buf[1] = NUL; 713 714 rettv->vval.v_string = vim_strsave(buf); 715 rettv->v_type = VAR_STRING; 716 } 717 718 static void 719 may_add_state_char(garray_T *gap, char_u *include, int c) 720 { 721 if (include == NULL || vim_strchr(include, c) != NULL) 722 ga_append(gap, c); 723 } 724 725 /* 726 * "state()" function 727 */ 728 void 729 f_state(typval_T *argvars, typval_T *rettv) 730 { 731 garray_T ga; 732 char_u *include = NULL; 733 int i; 734 735 ga_init2(&ga, 1, 20); 736 if (argvars[0].v_type != VAR_UNKNOWN) 737 include = tv_get_string(&argvars[0]); 738 739 if (!(stuff_empty() && typebuf.tb_len == 0 && scriptin[curscript] == NULL)) 740 may_add_state_char(&ga, include, 'm'); 741 if (op_pending()) 742 may_add_state_char(&ga, include, 'o'); 743 if (autocmd_busy) 744 may_add_state_char(&ga, include, 'x'); 745 if (ins_compl_active()) 746 may_add_state_char(&ga, include, 'a'); 747 748 # ifdef FEAT_JOB_CHANNEL 749 if (channel_in_blocking_wait()) 750 may_add_state_char(&ga, include, 'w'); 751 # endif 752 if (!get_was_safe_state()) 753 may_add_state_char(&ga, include, 'S'); 754 for (i = 0; i < get_callback_depth() && i < 3; ++i) 755 may_add_state_char(&ga, include, 'c'); 756 if (msg_scrolled > 0) 757 may_add_state_char(&ga, include, 's'); 758 759 rettv->v_type = VAR_STRING; 760 rettv->vval.v_string = ga.ga_data; 761 } 762 763 #endif // FEAT_EVAL 764 765 /* 766 * Get a key stroke directly from the user. 767 * Ignores mouse clicks and scrollbar events, except a click for the left 768 * button (used at the more prompt). 769 * Doesn't use vgetc(), because it syncs undo and eats mapped characters. 770 * Disadvantage: typeahead is ignored. 771 * Translates the interrupt character for unix to ESC. 772 */ 773 int 774 get_keystroke(void) 775 { 776 char_u *buf = NULL; 777 int buflen = 150; 778 int maxlen; 779 int len = 0; 780 int n; 781 int save_mapped_ctrl_c = mapped_ctrl_c; 782 int waited = 0; 783 784 mapped_ctrl_c = FALSE; // mappings are not used here 785 for (;;) 786 { 787 cursor_on(); 788 out_flush(); 789 790 // Leave some room for check_termcode() to insert a key code into (max 791 // 5 chars plus NUL). And fix_input_buffer() can triple the number of 792 // bytes. 793 maxlen = (buflen - 6 - len) / 3; 794 if (buf == NULL) 795 buf = alloc(buflen); 796 else if (maxlen < 10) 797 { 798 char_u *t_buf = buf; 799 800 // Need some more space. This might happen when receiving a long 801 // escape sequence. 802 buflen += 100; 803 buf = vim_realloc(buf, buflen); 804 if (buf == NULL) 805 vim_free(t_buf); 806 maxlen = (buflen - 6 - len) / 3; 807 } 808 if (buf == NULL) 809 { 810 do_outofmem_msg((long_u)buflen); 811 return ESC; // panic! 812 } 813 814 // First time: blocking wait. Second time: wait up to 100ms for a 815 // terminal code to complete. 816 n = ui_inchar(buf + len, maxlen, len == 0 ? -1L : 100L, 0); 817 if (n > 0) 818 { 819 // Replace zero and CSI by a special key code. 820 n = fix_input_buffer(buf + len, n); 821 len += n; 822 waited = 0; 823 } 824 else if (len > 0) 825 ++waited; // keep track of the waiting time 826 827 // Incomplete termcode and not timed out yet: get more characters 828 if ((n = check_termcode(1, buf, buflen, &len)) < 0 829 && (!p_ttimeout || waited * 100L < (p_ttm < 0 ? p_tm : p_ttm))) 830 continue; 831 832 if (n == KEYLEN_REMOVED) // key code removed 833 { 834 if (must_redraw != 0 && !need_wait_return && (State & CMDLINE) == 0) 835 { 836 // Redrawing was postponed, do it now. 837 update_screen(0); 838 setcursor(); // put cursor back where it belongs 839 } 840 continue; 841 } 842 if (n > 0) // found a termcode: adjust length 843 len = n; 844 if (len == 0) // nothing typed yet 845 continue; 846 847 // Handle modifier and/or special key code. 848 n = buf[0]; 849 if (n == K_SPECIAL) 850 { 851 n = TO_SPECIAL(buf[1], buf[2]); 852 if (buf[1] == KS_MODIFIER 853 || n == K_IGNORE 854 || (is_mouse_key(n) && n != K_LEFTMOUSE) 855 #ifdef FEAT_GUI 856 || n == K_VER_SCROLLBAR 857 || n == K_HOR_SCROLLBAR 858 #endif 859 ) 860 { 861 if (buf[1] == KS_MODIFIER) 862 mod_mask = buf[2]; 863 len -= 3; 864 if (len > 0) 865 mch_memmove(buf, buf + 3, (size_t)len); 866 continue; 867 } 868 break; 869 } 870 if (has_mbyte) 871 { 872 if (MB_BYTE2LEN(n) > len) 873 continue; // more bytes to get 874 buf[len >= buflen ? buflen - 1 : len] = NUL; 875 n = (*mb_ptr2char)(buf); 876 } 877 #ifdef UNIX 878 if (n == intr_char) 879 n = ESC; 880 #endif 881 break; 882 } 883 vim_free(buf); 884 885 mapped_ctrl_c = save_mapped_ctrl_c; 886 return n; 887 } 888 889 /* 890 * Get a number from the user. 891 * When "mouse_used" is not NULL allow using the mouse. 892 */ 893 int 894 get_number( 895 int colon, // allow colon to abort 896 int *mouse_used) 897 { 898 int n = 0; 899 int c; 900 int typed = 0; 901 902 if (mouse_used != NULL) 903 *mouse_used = FALSE; 904 905 // When not printing messages, the user won't know what to type, return a 906 // zero (as if CR was hit). 907 if (msg_silent != 0) 908 return 0; 909 910 #ifdef USE_ON_FLY_SCROLL 911 dont_scroll = TRUE; // disallow scrolling here 912 #endif 913 ++no_mapping; 914 ++allow_keys; // no mapping here, but recognize keys 915 for (;;) 916 { 917 windgoto(msg_row, msg_col); 918 c = safe_vgetc(); 919 if (VIM_ISDIGIT(c)) 920 { 921 n = n * 10 + c - '0'; 922 msg_putchar(c); 923 ++typed; 924 } 925 else if (c == K_DEL || c == K_KDEL || c == K_BS || c == Ctrl_H) 926 { 927 if (typed > 0) 928 { 929 msg_puts("\b \b"); 930 --typed; 931 } 932 n /= 10; 933 } 934 else if (mouse_used != NULL && c == K_LEFTMOUSE) 935 { 936 *mouse_used = TRUE; 937 n = mouse_row + 1; 938 break; 939 } 940 else if (n == 0 && c == ':' && colon) 941 { 942 stuffcharReadbuff(':'); 943 if (!exmode_active) 944 cmdline_row = msg_row; 945 skip_redraw = TRUE; // skip redraw once 946 do_redraw = FALSE; 947 break; 948 } 949 else if (c == CAR || c == NL || c == Ctrl_C || c == ESC || c == 'q') 950 break; 951 } 952 --no_mapping; 953 --allow_keys; 954 return n; 955 } 956 957 /* 958 * Ask the user to enter a number. 959 * When "mouse_used" is not NULL allow using the mouse and in that case return 960 * the line number. 961 */ 962 int 963 prompt_for_number(int *mouse_used) 964 { 965 int i; 966 int save_cmdline_row; 967 int save_State; 968 969 // When using ":silent" assume that <CR> was entered. 970 if (mouse_used != NULL) 971 msg_puts(_("Type number and <Enter> or click with the mouse (q or empty cancels): ")); 972 else 973 msg_puts(_("Type number and <Enter> (q or empty cancels): ")); 974 975 // Set the state such that text can be selected/copied/pasted and we still 976 // get mouse events. redraw_after_callback() will not redraw if cmdline_row 977 // is zero. 978 save_cmdline_row = cmdline_row; 979 cmdline_row = 0; 980 save_State = State; 981 State = CMDLINE; 982 // May show different mouse shape. 983 setmouse(); 984 985 i = get_number(TRUE, mouse_used); 986 if (KeyTyped) 987 { 988 // don't call wait_return() now 989 if (msg_row > 0) 990 cmdline_row = msg_row - 1; 991 need_wait_return = FALSE; 992 msg_didany = FALSE; 993 msg_didout = FALSE; 994 } 995 else 996 cmdline_row = save_cmdline_row; 997 State = save_State; 998 // May need to restore mouse shape. 999 setmouse(); 1000 1001 return i; 1002 } 1003 1004 void 1005 msgmore(long n) 1006 { 1007 long pn; 1008 1009 if (global_busy // no messages now, wait until global is finished 1010 || !messaging()) // 'lazyredraw' set, don't do messages now 1011 return; 1012 1013 // We don't want to overwrite another important message, but do overwrite 1014 // a previous "more lines" or "fewer lines" message, so that "5dd" and 1015 // then "put" reports the last action. 1016 if (keep_msg != NULL && !keep_msg_more) 1017 return; 1018 1019 if (n > 0) 1020 pn = n; 1021 else 1022 pn = -n; 1023 1024 if (pn > p_report) 1025 { 1026 if (n > 0) 1027 vim_snprintf(msg_buf, MSG_BUF_LEN, 1028 NGETTEXT("%ld more line", "%ld more lines", pn), pn); 1029 else 1030 vim_snprintf(msg_buf, MSG_BUF_LEN, 1031 NGETTEXT("%ld line less", "%ld fewer lines", pn), pn); 1032 if (got_int) 1033 vim_strcat((char_u *)msg_buf, (char_u *)_(" (Interrupted)"), 1034 MSG_BUF_LEN); 1035 if (msg(msg_buf)) 1036 { 1037 set_keep_msg((char_u *)msg_buf, 0); 1038 keep_msg_more = TRUE; 1039 } 1040 } 1041 } 1042 1043 /* 1044 * flush map and typeahead buffers and give a warning for an error 1045 */ 1046 void 1047 beep_flush(void) 1048 { 1049 if (emsg_silent == 0) 1050 { 1051 flush_buffers(FLUSH_MINIMAL); 1052 vim_beep(BO_ERROR); 1053 } 1054 } 1055 1056 /* 1057 * Give a warning for an error. 1058 */ 1059 void 1060 vim_beep( 1061 unsigned val) // one of the BO_ values, e.g., BO_OPER 1062 { 1063 #ifdef FEAT_EVAL 1064 called_vim_beep = TRUE; 1065 #endif 1066 1067 if (emsg_silent == 0 && !in_assert_fails) 1068 { 1069 if (!((bo_flags & val) || (bo_flags & BO_ALL))) 1070 { 1071 #ifdef ELAPSED_FUNC 1072 static int did_init = FALSE; 1073 static elapsed_T start_tv; 1074 1075 // Only beep once per half a second, otherwise a sequence of beeps 1076 // would freeze Vim. 1077 if (!did_init || ELAPSED_FUNC(start_tv) > 500) 1078 { 1079 did_init = TRUE; 1080 ELAPSED_INIT(start_tv); 1081 #endif 1082 if (p_vb 1083 #ifdef FEAT_GUI 1084 // While the GUI is starting up the termcap is set for 1085 // the GUI but the output still goes to a terminal. 1086 && !(gui.in_use && gui.starting) 1087 #endif 1088 ) 1089 { 1090 out_str_cf(T_VB); 1091 #ifdef FEAT_VTP 1092 // No restore color information, refresh the screen. 1093 if (has_vtp_working() != 0 1094 # ifdef FEAT_TERMGUICOLORS 1095 && (p_tgc || (!p_tgc && t_colors >= 256)) 1096 # endif 1097 ) 1098 { 1099 redraw_later(CLEAR); 1100 update_screen(0); 1101 redrawcmd(); 1102 } 1103 #endif 1104 } 1105 else 1106 out_char(BELL); 1107 #ifdef ELAPSED_FUNC 1108 } 1109 #endif 1110 } 1111 1112 // When 'debug' contains "beep" produce a message. If we are sourcing 1113 // a script or executing a function give the user a hint where the beep 1114 // comes from. 1115 if (vim_strchr(p_debug, 'e') != NULL) 1116 { 1117 msg_source(HL_ATTR(HLF_W)); 1118 msg_attr(_("Beep!"), HL_ATTR(HLF_W)); 1119 } 1120 } 1121 } 1122 1123 /* 1124 * To get the "real" home directory: 1125 * - get value of $HOME 1126 * For Unix: 1127 * - go to that directory 1128 * - do mch_dirname() to get the real name of that directory. 1129 * This also works with mounts and links. 1130 * Don't do this for MS-DOS, it will change the "current dir" for a drive. 1131 * For Windows: 1132 * This code is duplicated in init_homedir() in dosinst.c. Keep in sync! 1133 */ 1134 void 1135 init_homedir(void) 1136 { 1137 char_u *var; 1138 1139 // In case we are called a second time (when 'encoding' changes). 1140 VIM_CLEAR(homedir); 1141 1142 #ifdef VMS 1143 var = mch_getenv((char_u *)"SYS$LOGIN"); 1144 #else 1145 var = mch_getenv((char_u *)"HOME"); 1146 #endif 1147 1148 #ifdef MSWIN 1149 /* 1150 * Typically, $HOME is not defined on Windows, unless the user has 1151 * specifically defined it for Vim's sake. However, on Windows NT 1152 * platforms, $HOMEDRIVE and $HOMEPATH are automatically defined for 1153 * each user. Try constructing $HOME from these. 1154 */ 1155 if (var == NULL || *var == NUL) 1156 { 1157 char_u *homedrive, *homepath; 1158 1159 homedrive = mch_getenv((char_u *)"HOMEDRIVE"); 1160 homepath = mch_getenv((char_u *)"HOMEPATH"); 1161 if (homepath == NULL || *homepath == NUL) 1162 homepath = (char_u *)"\\"; 1163 if (homedrive != NULL 1164 && STRLEN(homedrive) + STRLEN(homepath) < MAXPATHL) 1165 { 1166 sprintf((char *)NameBuff, "%s%s", homedrive, homepath); 1167 if (NameBuff[0] != NUL) 1168 var = NameBuff; 1169 } 1170 } 1171 1172 if (var == NULL) 1173 var = mch_getenv((char_u *)"USERPROFILE"); 1174 1175 /* 1176 * Weird but true: $HOME may contain an indirect reference to another 1177 * variable, esp. "%USERPROFILE%". Happens when $USERPROFILE isn't set 1178 * when $HOME is being set. 1179 */ 1180 if (var != NULL && *var == '%') 1181 { 1182 char_u *p; 1183 char_u *exp; 1184 1185 p = vim_strchr(var + 1, '%'); 1186 if (p != NULL) 1187 { 1188 vim_strncpy(NameBuff, var + 1, p - (var + 1)); 1189 exp = mch_getenv(NameBuff); 1190 if (exp != NULL && *exp != NUL 1191 && STRLEN(exp) + STRLEN(p) < MAXPATHL) 1192 { 1193 vim_snprintf((char *)NameBuff, MAXPATHL, "%s%s", exp, p + 1); 1194 var = NameBuff; 1195 } 1196 } 1197 } 1198 1199 if (var != NULL && *var == NUL) // empty is same as not set 1200 var = NULL; 1201 1202 if (enc_utf8 && var != NULL) 1203 { 1204 int len; 1205 char_u *pp = NULL; 1206 1207 // Convert from active codepage to UTF-8. Other conversions are 1208 // not done, because they would fail for non-ASCII characters. 1209 acp_to_enc(var, (int)STRLEN(var), &pp, &len); 1210 if (pp != NULL) 1211 { 1212 homedir = pp; 1213 return; 1214 } 1215 } 1216 1217 /* 1218 * Default home dir is C:/ 1219 * Best assumption we can make in such a situation. 1220 */ 1221 if (var == NULL) 1222 var = (char_u *)"C:/"; 1223 #endif 1224 1225 if (var != NULL) 1226 { 1227 #ifdef UNIX 1228 /* 1229 * Change to the directory and get the actual path. This resolves 1230 * links. Don't do it when we can't return. 1231 */ 1232 if (mch_dirname(NameBuff, MAXPATHL) == OK 1233 && mch_chdir((char *)NameBuff) == 0) 1234 { 1235 if (!mch_chdir((char *)var) && mch_dirname(IObuff, IOSIZE) == OK) 1236 var = IObuff; 1237 if (mch_chdir((char *)NameBuff) != 0) 1238 emsg(_(e_prev_dir)); 1239 } 1240 #endif 1241 homedir = vim_strsave(var); 1242 } 1243 } 1244 1245 #if defined(EXITFREE) || defined(PROTO) 1246 void 1247 free_homedir(void) 1248 { 1249 vim_free(homedir); 1250 } 1251 1252 void 1253 free_users(void) 1254 { 1255 ga_clear_strings(&ga_users); 1256 } 1257 #endif 1258 1259 /* 1260 * Call expand_env() and store the result in an allocated string. 1261 * This is not very memory efficient, this expects the result to be freed 1262 * again soon. 1263 */ 1264 char_u * 1265 expand_env_save(char_u *src) 1266 { 1267 return expand_env_save_opt(src, FALSE); 1268 } 1269 1270 /* 1271 * Idem, but when "one" is TRUE handle the string as one file name, only 1272 * expand "~" at the start. 1273 */ 1274 char_u * 1275 expand_env_save_opt(char_u *src, int one) 1276 { 1277 char_u *p; 1278 1279 p = alloc(MAXPATHL); 1280 if (p != NULL) 1281 expand_env_esc(src, p, MAXPATHL, FALSE, one, NULL); 1282 return p; 1283 } 1284 1285 /* 1286 * Expand environment variable with path name. 1287 * "~/" is also expanded, using $HOME. For Unix "~user/" is expanded. 1288 * Skips over "\ ", "\~" and "\$" (not for Win32 though). 1289 * If anything fails no expansion is done and dst equals src. 1290 */ 1291 void 1292 expand_env( 1293 char_u *src, // input string e.g. "$HOME/vim.hlp" 1294 char_u *dst, // where to put the result 1295 int dstlen) // maximum length of the result 1296 { 1297 expand_env_esc(src, dst, dstlen, FALSE, FALSE, NULL); 1298 } 1299 1300 void 1301 expand_env_esc( 1302 char_u *srcp, // input string e.g. "$HOME/vim.hlp" 1303 char_u *dst, // where to put the result 1304 int dstlen, // maximum length of the result 1305 int esc, // escape spaces in expanded variables 1306 int one, // "srcp" is one file name 1307 char_u *startstr) // start again after this (can be NULL) 1308 { 1309 char_u *src; 1310 char_u *tail; 1311 int c; 1312 char_u *var; 1313 int copy_char; 1314 int mustfree; // var was allocated, need to free it later 1315 int at_start = TRUE; // at start of a name 1316 int startstr_len = 0; 1317 1318 if (startstr != NULL) 1319 startstr_len = (int)STRLEN(startstr); 1320 1321 src = skipwhite(srcp); 1322 --dstlen; // leave one char space for "\," 1323 while (*src && dstlen > 0) 1324 { 1325 #ifdef FEAT_EVAL 1326 // Skip over `=expr`. 1327 if (src[0] == '`' && src[1] == '=') 1328 { 1329 size_t len; 1330 1331 var = src; 1332 src += 2; 1333 (void)skip_expr(&src, NULL); 1334 if (*src == '`') 1335 ++src; 1336 len = src - var; 1337 if (len > (size_t)dstlen) 1338 len = dstlen; 1339 vim_strncpy(dst, var, len); 1340 dst += len; 1341 dstlen -= (int)len; 1342 continue; 1343 } 1344 #endif 1345 copy_char = TRUE; 1346 if ((*src == '$' 1347 #ifdef VMS 1348 && at_start 1349 #endif 1350 ) 1351 #if defined(MSWIN) 1352 || *src == '%' 1353 #endif 1354 || (*src == '~' && at_start)) 1355 { 1356 mustfree = FALSE; 1357 1358 /* 1359 * The variable name is copied into dst temporarily, because it may 1360 * be a string in read-only memory and a NUL needs to be appended. 1361 */ 1362 if (*src != '~') // environment var 1363 { 1364 tail = src + 1; 1365 var = dst; 1366 c = dstlen - 1; 1367 1368 #ifdef UNIX 1369 // Unix has ${var-name} type environment vars 1370 if (*tail == '{' && !vim_isIDc('{')) 1371 { 1372 tail++; // ignore '{' 1373 while (c-- > 0 && *tail && *tail != '}') 1374 *var++ = *tail++; 1375 } 1376 else 1377 #endif 1378 { 1379 while (c-- > 0 && *tail != NUL && ((vim_isIDc(*tail)) 1380 #if defined(MSWIN) 1381 || (*src == '%' && *tail != '%') 1382 #endif 1383 )) 1384 *var++ = *tail++; 1385 } 1386 1387 #if defined(MSWIN) || defined(UNIX) 1388 # ifdef UNIX 1389 if (src[1] == '{' && *tail != '}') 1390 # else 1391 if (*src == '%' && *tail != '%') 1392 # endif 1393 var = NULL; 1394 else 1395 { 1396 # ifdef UNIX 1397 if (src[1] == '{') 1398 # else 1399 if (*src == '%') 1400 #endif 1401 ++tail; 1402 #endif 1403 *var = NUL; 1404 var = vim_getenv(dst, &mustfree); 1405 #if defined(MSWIN) || defined(UNIX) 1406 } 1407 #endif 1408 } 1409 // home directory 1410 else if ( src[1] == NUL 1411 || vim_ispathsep(src[1]) 1412 || vim_strchr((char_u *)" ,\t\n", src[1]) != NULL) 1413 { 1414 var = homedir; 1415 tail = src + 1; 1416 } 1417 else // user directory 1418 { 1419 #if defined(UNIX) || (defined(VMS) && defined(USER_HOME)) 1420 /* 1421 * Copy ~user to dst[], so we can put a NUL after it. 1422 */ 1423 tail = src; 1424 var = dst; 1425 c = dstlen - 1; 1426 while ( c-- > 0 1427 && *tail 1428 && vim_isfilec(*tail) 1429 && !vim_ispathsep(*tail)) 1430 *var++ = *tail++; 1431 *var = NUL; 1432 # ifdef UNIX 1433 /* 1434 * If the system supports getpwnam(), use it. 1435 * Otherwise, or if getpwnam() fails, the shell is used to 1436 * expand ~user. This is slower and may fail if the shell 1437 * does not support ~user (old versions of /bin/sh). 1438 */ 1439 # if defined(HAVE_GETPWNAM) && defined(HAVE_PWD_H) 1440 { 1441 // Note: memory allocated by getpwnam() is never freed. 1442 // Calling endpwent() apparently doesn't help. 1443 struct passwd *pw = (*dst == NUL) 1444 ? NULL : getpwnam((char *)dst + 1); 1445 1446 var = (pw == NULL) ? NULL : (char_u *)pw->pw_dir; 1447 } 1448 if (var == NULL) 1449 # endif 1450 { 1451 expand_T xpc; 1452 1453 ExpandInit(&xpc); 1454 xpc.xp_context = EXPAND_FILES; 1455 var = ExpandOne(&xpc, dst, NULL, 1456 WILD_ADD_SLASH|WILD_SILENT, WILD_EXPAND_FREE); 1457 mustfree = TRUE; 1458 } 1459 1460 # else // !UNIX, thus VMS 1461 /* 1462 * USER_HOME is a comma-separated list of 1463 * directories to search for the user account in. 1464 */ 1465 { 1466 char_u test[MAXPATHL], paths[MAXPATHL]; 1467 char_u *path, *next_path, *ptr; 1468 stat_T st; 1469 1470 STRCPY(paths, USER_HOME); 1471 next_path = paths; 1472 while (*next_path) 1473 { 1474 for (path = next_path; *next_path && *next_path != ','; 1475 next_path++); 1476 if (*next_path) 1477 *next_path++ = NUL; 1478 STRCPY(test, path); 1479 STRCAT(test, "/"); 1480 STRCAT(test, dst + 1); 1481 if (mch_stat(test, &st) == 0) 1482 { 1483 var = alloc(STRLEN(test) + 1); 1484 STRCPY(var, test); 1485 mustfree = TRUE; 1486 break; 1487 } 1488 } 1489 } 1490 # endif // UNIX 1491 #else 1492 // cannot expand user's home directory, so don't try 1493 var = NULL; 1494 tail = (char_u *)""; // for gcc 1495 #endif // UNIX || VMS 1496 } 1497 1498 #ifdef BACKSLASH_IN_FILENAME 1499 // If 'shellslash' is set change backslashes to forward slashes. 1500 // Can't use slash_adjust(), p_ssl may be set temporarily. 1501 if (p_ssl && var != NULL && vim_strchr(var, '\\') != NULL) 1502 { 1503 char_u *p = vim_strsave(var); 1504 1505 if (p != NULL) 1506 { 1507 if (mustfree) 1508 vim_free(var); 1509 var = p; 1510 mustfree = TRUE; 1511 forward_slash(var); 1512 } 1513 } 1514 #endif 1515 1516 // If "var" contains white space, escape it with a backslash. 1517 // Required for ":e ~/tt" when $HOME includes a space. 1518 if (esc && var != NULL && vim_strpbrk(var, (char_u *)" \t") != NULL) 1519 { 1520 char_u *p = vim_strsave_escaped(var, (char_u *)" \t"); 1521 1522 if (p != NULL) 1523 { 1524 if (mustfree) 1525 vim_free(var); 1526 var = p; 1527 mustfree = TRUE; 1528 } 1529 } 1530 1531 if (var != NULL && *var != NUL 1532 && (STRLEN(var) + STRLEN(tail) + 1 < (unsigned)dstlen)) 1533 { 1534 STRCPY(dst, var); 1535 dstlen -= (int)STRLEN(var); 1536 c = (int)STRLEN(var); 1537 // if var[] ends in a path separator and tail[] starts 1538 // with it, skip a character 1539 if (*var != NUL && after_pathsep(dst, dst + c) 1540 #if defined(BACKSLASH_IN_FILENAME) || defined(AMIGA) 1541 && dst[-1] != ':' 1542 #endif 1543 && vim_ispathsep(*tail)) 1544 ++tail; 1545 dst += c; 1546 src = tail; 1547 copy_char = FALSE; 1548 } 1549 if (mustfree) 1550 vim_free(var); 1551 } 1552 1553 if (copy_char) // copy at least one char 1554 { 1555 /* 1556 * Recognize the start of a new name, for '~'. 1557 * Don't do this when "one" is TRUE, to avoid expanding "~" in 1558 * ":edit foo ~ foo". 1559 */ 1560 at_start = FALSE; 1561 if (src[0] == '\\' && src[1] != NUL) 1562 { 1563 *dst++ = *src++; 1564 --dstlen; 1565 } 1566 else if ((src[0] == ' ' || src[0] == ',') && !one) 1567 at_start = TRUE; 1568 if (dstlen > 0) 1569 { 1570 *dst++ = *src++; 1571 --dstlen; 1572 1573 if (startstr != NULL && src - startstr_len >= srcp 1574 && STRNCMP(src - startstr_len, startstr, 1575 startstr_len) == 0) 1576 at_start = TRUE; 1577 } 1578 } 1579 1580 } 1581 *dst = NUL; 1582 } 1583 1584 /* 1585 * If the string between "p" and "pend" ends in "name/", return "pend" minus 1586 * the length of "name/". Otherwise return "pend". 1587 */ 1588 static char_u * 1589 remove_tail(char_u *p, char_u *pend, char_u *name) 1590 { 1591 int len = (int)STRLEN(name) + 1; 1592 char_u *newend = pend - len; 1593 1594 if (newend >= p 1595 && fnamencmp(newend, name, len - 1) == 0 1596 && (newend == p || after_pathsep(p, newend))) 1597 return newend; 1598 return pend; 1599 } 1600 1601 /* 1602 * Check if the directory "vimdir/<version>" or "vimdir/runtime" exists. 1603 * Return NULL if not, return its name in allocated memory otherwise. 1604 */ 1605 static char_u * 1606 vim_version_dir(char_u *vimdir) 1607 { 1608 char_u *p; 1609 1610 if (vimdir == NULL || *vimdir == NUL) 1611 return NULL; 1612 p = concat_fnames(vimdir, (char_u *)VIM_VERSION_NODOT, TRUE); 1613 if (p != NULL && mch_isdir(p)) 1614 return p; 1615 vim_free(p); 1616 p = concat_fnames(vimdir, (char_u *)RUNTIME_DIRNAME, TRUE); 1617 if (p != NULL && mch_isdir(p)) 1618 return p; 1619 vim_free(p); 1620 return NULL; 1621 } 1622 1623 /* 1624 * Vim's version of getenv(). 1625 * Special handling of $HOME, $VIM and $VIMRUNTIME. 1626 * Also does ACP to 'enc' conversion for Win32. 1627 * "mustfree" is set to TRUE when returned is allocated, it must be 1628 * initialized to FALSE by the caller. 1629 */ 1630 char_u * 1631 vim_getenv(char_u *name, int *mustfree) 1632 { 1633 char_u *p = NULL; 1634 char_u *pend; 1635 int vimruntime; 1636 #ifdef MSWIN 1637 WCHAR *wn, *wp; 1638 1639 // use "C:/" when $HOME is not set 1640 if (STRCMP(name, "HOME") == 0) 1641 return homedir; 1642 1643 // Use Wide function 1644 wn = enc_to_utf16(name, NULL); 1645 if (wn == NULL) 1646 return NULL; 1647 1648 wp = _wgetenv(wn); 1649 vim_free(wn); 1650 1651 if (wp != NULL && *wp == NUL) // empty is the same as not set 1652 wp = NULL; 1653 1654 if (wp != NULL) 1655 { 1656 p = utf16_to_enc(wp, NULL); 1657 if (p == NULL) 1658 return NULL; 1659 1660 *mustfree = TRUE; 1661 return p; 1662 } 1663 #else 1664 p = mch_getenv(name); 1665 if (p != NULL && *p == NUL) // empty is the same as not set 1666 p = NULL; 1667 1668 if (p != NULL) 1669 return p; 1670 1671 # ifdef __HAIKU__ 1672 // special handling for user settings directory... 1673 if (STRCMP(name, "BE_USER_SETTINGS") == 0) 1674 { 1675 static char userSettingsPath[MAXPATHL]; 1676 1677 if (find_directory(B_USER_SETTINGS_DIRECTORY, 0, false, 1678 userSettingsPath, MAXPATHL) == B_OK) 1679 return (char_u *)userSettingsPath; 1680 else 1681 return NULL; 1682 } 1683 # endif 1684 #endif 1685 1686 // handling $VIMRUNTIME and $VIM is below, bail out if it's another name. 1687 vimruntime = (STRCMP(name, "VIMRUNTIME") == 0); 1688 if (!vimruntime && STRCMP(name, "VIM") != 0) 1689 return NULL; 1690 1691 /* 1692 * When expanding $VIMRUNTIME fails, try using $VIM/vim<version> or $VIM. 1693 * Don't do this when default_vimruntime_dir is non-empty. 1694 */ 1695 if (vimruntime 1696 #ifdef HAVE_PATHDEF 1697 && *default_vimruntime_dir == NUL 1698 #endif 1699 ) 1700 { 1701 #ifdef MSWIN 1702 // Use Wide function 1703 wp = _wgetenv(L"VIM"); 1704 if (wp != NULL && *wp == NUL) // empty is the same as not set 1705 wp = NULL; 1706 if (wp != NULL) 1707 { 1708 char_u *q = utf16_to_enc(wp, NULL); 1709 if (q != NULL) 1710 { 1711 p = vim_version_dir(q); 1712 *mustfree = TRUE; 1713 if (p == NULL) 1714 p = q; 1715 } 1716 } 1717 #else 1718 p = mch_getenv((char_u *)"VIM"); 1719 if (p != NULL && *p == NUL) // empty is the same as not set 1720 p = NULL; 1721 if (p != NULL) 1722 { 1723 p = vim_version_dir(p); 1724 if (p != NULL) 1725 *mustfree = TRUE; 1726 else 1727 p = mch_getenv((char_u *)"VIM"); 1728 } 1729 #endif 1730 } 1731 1732 /* 1733 * When expanding $VIM or $VIMRUNTIME fails, try using: 1734 * - the directory name from 'helpfile' (unless it contains '$') 1735 * - the executable name from argv[0] 1736 */ 1737 if (p == NULL) 1738 { 1739 if (p_hf != NULL && vim_strchr(p_hf, '$') == NULL) 1740 p = p_hf; 1741 #ifdef USE_EXE_NAME 1742 /* 1743 * Use the name of the executable, obtained from argv[0]. 1744 */ 1745 else 1746 p = exe_name; 1747 #endif 1748 if (p != NULL) 1749 { 1750 // remove the file name 1751 pend = gettail(p); 1752 1753 // remove "doc/" from 'helpfile', if present 1754 if (p == p_hf) 1755 pend = remove_tail(p, pend, (char_u *)"doc"); 1756 1757 #ifdef USE_EXE_NAME 1758 # ifdef MACOS_X 1759 // remove "MacOS" from exe_name and add "Resources/vim" 1760 if (p == exe_name) 1761 { 1762 char_u *pend1; 1763 char_u *pnew; 1764 1765 pend1 = remove_tail(p, pend, (char_u *)"MacOS"); 1766 if (pend1 != pend) 1767 { 1768 pnew = alloc(pend1 - p + 15); 1769 if (pnew != NULL) 1770 { 1771 STRNCPY(pnew, p, (pend1 - p)); 1772 STRCPY(pnew + (pend1 - p), "Resources/vim"); 1773 p = pnew; 1774 pend = p + STRLEN(p); 1775 } 1776 } 1777 } 1778 # endif 1779 // remove "src/" from exe_name, if present 1780 if (p == exe_name) 1781 pend = remove_tail(p, pend, (char_u *)"src"); 1782 #endif 1783 1784 // for $VIM, remove "runtime/" or "vim54/", if present 1785 if (!vimruntime) 1786 { 1787 pend = remove_tail(p, pend, (char_u *)RUNTIME_DIRNAME); 1788 pend = remove_tail(p, pend, (char_u *)VIM_VERSION_NODOT); 1789 } 1790 1791 // remove trailing path separator 1792 if (pend > p && after_pathsep(p, pend)) 1793 --pend; 1794 1795 #ifdef MACOS_X 1796 if (p == exe_name || p == p_hf) 1797 #endif 1798 // check that the result is a directory name 1799 p = vim_strnsave(p, pend - p); 1800 1801 if (p != NULL && !mch_isdir(p)) 1802 VIM_CLEAR(p); 1803 else 1804 { 1805 #ifdef USE_EXE_NAME 1806 // may add "/vim54" or "/runtime" if it exists 1807 if (vimruntime && (pend = vim_version_dir(p)) != NULL) 1808 { 1809 vim_free(p); 1810 p = pend; 1811 } 1812 #endif 1813 *mustfree = TRUE; 1814 } 1815 } 1816 } 1817 1818 #ifdef HAVE_PATHDEF 1819 // When there is a pathdef.c file we can use default_vim_dir and 1820 // default_vimruntime_dir 1821 if (p == NULL) 1822 { 1823 // Only use default_vimruntime_dir when it is not empty 1824 if (vimruntime && *default_vimruntime_dir != NUL) 1825 { 1826 p = default_vimruntime_dir; 1827 *mustfree = FALSE; 1828 } 1829 else if (*default_vim_dir != NUL) 1830 { 1831 if (vimruntime && (p = vim_version_dir(default_vim_dir)) != NULL) 1832 *mustfree = TRUE; 1833 else 1834 { 1835 p = default_vim_dir; 1836 *mustfree = FALSE; 1837 } 1838 } 1839 } 1840 #endif 1841 1842 /* 1843 * Set the environment variable, so that the new value can be found fast 1844 * next time, and others can also use it (e.g. Perl). 1845 */ 1846 if (p != NULL) 1847 { 1848 if (vimruntime) 1849 { 1850 vim_setenv((char_u *)"VIMRUNTIME", p); 1851 didset_vimruntime = TRUE; 1852 } 1853 else 1854 { 1855 vim_setenv((char_u *)"VIM", p); 1856 didset_vim = TRUE; 1857 } 1858 } 1859 return p; 1860 } 1861 1862 #if defined(FEAT_EVAL) || defined(PROTO) 1863 void 1864 vim_unsetenv(char_u *var) 1865 { 1866 #ifdef HAVE_UNSETENV 1867 unsetenv((char *)var); 1868 #else 1869 vim_setenv(var, (char_u *)""); 1870 #endif 1871 } 1872 #endif 1873 1874 1875 /* 1876 * Set environment variable "name" and take care of side effects. 1877 */ 1878 void 1879 vim_setenv_ext(char_u *name, char_u *val) 1880 { 1881 vim_setenv(name, val); 1882 if (STRICMP(name, "HOME") == 0) 1883 init_homedir(); 1884 else if (didset_vim && STRICMP(name, "VIM") == 0) 1885 didset_vim = FALSE; 1886 else if (didset_vimruntime 1887 && STRICMP(name, "VIMRUNTIME") == 0) 1888 didset_vimruntime = FALSE; 1889 } 1890 1891 /* 1892 * Our portable version of setenv. 1893 */ 1894 void 1895 vim_setenv(char_u *name, char_u *val) 1896 { 1897 #ifdef HAVE_SETENV 1898 mch_setenv((char *)name, (char *)val, 1); 1899 #else 1900 char_u *envbuf; 1901 1902 /* 1903 * Putenv does not copy the string, it has to remain 1904 * valid. The allocated memory will never be freed. 1905 */ 1906 envbuf = alloc(STRLEN(name) + STRLEN(val) + 2); 1907 if (envbuf != NULL) 1908 { 1909 sprintf((char *)envbuf, "%s=%s", name, val); 1910 putenv((char *)envbuf); 1911 } 1912 #endif 1913 #ifdef FEAT_GETTEXT 1914 /* 1915 * When setting $VIMRUNTIME adjust the directory to find message 1916 * translations to $VIMRUNTIME/lang. 1917 */ 1918 if (*val != NUL && STRICMP(name, "VIMRUNTIME") == 0) 1919 { 1920 char_u *buf = concat_str(val, (char_u *)"/lang"); 1921 1922 if (buf != NULL) 1923 { 1924 bindtextdomain(VIMPACKAGE, (char *)buf); 1925 vim_free(buf); 1926 } 1927 } 1928 #endif 1929 } 1930 1931 /* 1932 * Function given to ExpandGeneric() to obtain an environment variable name. 1933 */ 1934 char_u * 1935 get_env_name( 1936 expand_T *xp UNUSED, 1937 int idx) 1938 { 1939 # if defined(AMIGA) 1940 /* 1941 * No environ[] on the Amiga. 1942 */ 1943 return NULL; 1944 # else 1945 # ifndef __WIN32__ 1946 // Borland C++ 5.2 has this in a header file. 1947 extern char **environ; 1948 # endif 1949 # define ENVNAMELEN 100 1950 static char_u name[ENVNAMELEN]; 1951 char_u *str; 1952 int n; 1953 1954 str = (char_u *)environ[idx]; 1955 if (str == NULL) 1956 return NULL; 1957 1958 for (n = 0; n < ENVNAMELEN - 1; ++n) 1959 { 1960 if (str[n] == '=' || str[n] == NUL) 1961 break; 1962 name[n] = str[n]; 1963 } 1964 name[n] = NUL; 1965 return name; 1966 # endif 1967 } 1968 1969 /* 1970 * Add a user name to the list of users in ga_users. 1971 * Do nothing if user name is NULL or empty. 1972 */ 1973 static void 1974 add_user(char_u *user, int need_copy) 1975 { 1976 char_u *user_copy = (user != NULL && need_copy) 1977 ? vim_strsave(user) : user; 1978 1979 if (user_copy == NULL || *user_copy == NUL || ga_grow(&ga_users, 1) == FAIL) 1980 { 1981 if (need_copy) 1982 vim_free(user); 1983 return; 1984 } 1985 ((char_u **)(ga_users.ga_data))[ga_users.ga_len++] = user_copy; 1986 } 1987 1988 /* 1989 * Find all user names for user completion. 1990 * Done only once and then cached. 1991 */ 1992 static void 1993 init_users(void) 1994 { 1995 static int lazy_init_done = FALSE; 1996 1997 if (lazy_init_done) 1998 return; 1999 2000 lazy_init_done = TRUE; 2001 ga_init2(&ga_users, sizeof(char_u *), 20); 2002 2003 # if defined(HAVE_GETPWENT) && defined(HAVE_PWD_H) 2004 { 2005 struct passwd* pw; 2006 2007 setpwent(); 2008 while ((pw = getpwent()) != NULL) 2009 add_user((char_u *)pw->pw_name, TRUE); 2010 endpwent(); 2011 } 2012 # elif defined(MSWIN) 2013 { 2014 DWORD nusers = 0, ntotal = 0, i; 2015 PUSER_INFO_0 uinfo; 2016 2017 if (NetUserEnum(NULL, 0, 0, (LPBYTE *) &uinfo, MAX_PREFERRED_LENGTH, 2018 &nusers, &ntotal, NULL) == NERR_Success) 2019 { 2020 for (i = 0; i < nusers; i++) 2021 add_user(utf16_to_enc(uinfo[i].usri0_name, NULL), FALSE); 2022 2023 NetApiBufferFree(uinfo); 2024 } 2025 } 2026 # endif 2027 # if defined(HAVE_GETPWNAM) 2028 { 2029 char_u *user_env = mch_getenv((char_u *)"USER"); 2030 2031 // The $USER environment variable may be a valid remote user name (NIS, 2032 // LDAP) not already listed by getpwent(), as getpwent() only lists 2033 // local user names. If $USER is not already listed, check whether it 2034 // is a valid remote user name using getpwnam() and if it is, add it to 2035 // the list of user names. 2036 2037 if (user_env != NULL && *user_env != NUL) 2038 { 2039 int i; 2040 2041 for (i = 0; i < ga_users.ga_len; i++) 2042 { 2043 char_u *local_user = ((char_u **)ga_users.ga_data)[i]; 2044 2045 if (STRCMP(local_user, user_env) == 0) 2046 break; 2047 } 2048 2049 if (i == ga_users.ga_len) 2050 { 2051 struct passwd *pw = getpwnam((char *)user_env); 2052 2053 if (pw != NULL) 2054 add_user((char_u *)pw->pw_name, TRUE); 2055 } 2056 } 2057 } 2058 # endif 2059 } 2060 2061 /* 2062 * Function given to ExpandGeneric() to obtain an user names. 2063 */ 2064 char_u* 2065 get_users(expand_T *xp UNUSED, int idx) 2066 { 2067 init_users(); 2068 if (idx < ga_users.ga_len) 2069 return ((char_u **)ga_users.ga_data)[idx]; 2070 return NULL; 2071 } 2072 2073 /* 2074 * Check whether name matches a user name. Return: 2075 * 0 if name does not match any user name. 2076 * 1 if name partially matches the beginning of a user name. 2077 * 2 is name fully matches a user name. 2078 */ 2079 int 2080 match_user(char_u *name) 2081 { 2082 int i; 2083 int n = (int)STRLEN(name); 2084 int result = 0; 2085 2086 init_users(); 2087 for (i = 0; i < ga_users.ga_len; i++) 2088 { 2089 if (STRCMP(((char_u **)ga_users.ga_data)[i], name) == 0) 2090 return 2; // full match 2091 if (STRNCMP(((char_u **)ga_users.ga_data)[i], name, n) == 0) 2092 result = 1; // partial match 2093 } 2094 return result; 2095 } 2096 2097 /* 2098 * Concatenate two strings and return the result in allocated memory. 2099 * Returns NULL when out of memory. 2100 */ 2101 char_u * 2102 concat_str(char_u *str1, char_u *str2) 2103 { 2104 char_u *dest; 2105 size_t l = str1 == NULL ? 0 : STRLEN(str1); 2106 2107 dest = alloc(l + (str2 == NULL ? 0 : STRLEN(str2)) + 1L); 2108 if (dest != NULL) 2109 { 2110 if (str1 == NULL) 2111 *dest = NUL; 2112 else 2113 STRCPY(dest, str1); 2114 if (str2 != NULL) 2115 STRCPY(dest + l, str2); 2116 } 2117 return dest; 2118 } 2119 2120 static void 2121 prepare_to_exit(void) 2122 { 2123 #if defined(SIGHUP) && defined(SIG_IGN) 2124 // Ignore SIGHUP, because a dropped connection causes a read error, which 2125 // makes Vim exit and then handling SIGHUP causes various reentrance 2126 // problems. 2127 signal(SIGHUP, SIG_IGN); 2128 #endif 2129 2130 #ifdef FEAT_GUI 2131 if (gui.in_use) 2132 { 2133 gui.dying = TRUE; 2134 out_trash(); // trash any pending output 2135 } 2136 else 2137 #endif 2138 { 2139 windgoto((int)Rows - 1, 0); 2140 2141 /* 2142 * Switch terminal mode back now, so messages end up on the "normal" 2143 * screen (if there are two screens). 2144 */ 2145 settmode(TMODE_COOK); 2146 stoptermcap(); 2147 out_flush(); 2148 } 2149 } 2150 2151 /* 2152 * Preserve files and exit. 2153 * When called IObuff must contain a message. 2154 * NOTE: This may be called from deathtrap() in a signal handler, avoid unsafe 2155 * functions, such as allocating memory. 2156 */ 2157 void 2158 preserve_exit(void) 2159 { 2160 buf_T *buf; 2161 2162 prepare_to_exit(); 2163 2164 // Setting this will prevent free() calls. That avoids calling free() 2165 // recursively when free() was invoked with a bad pointer. 2166 really_exiting = TRUE; 2167 2168 out_str(IObuff); 2169 screen_start(); // don't know where cursor is now 2170 out_flush(); 2171 2172 ml_close_notmod(); // close all not-modified buffers 2173 2174 FOR_ALL_BUFFERS(buf) 2175 { 2176 if (buf->b_ml.ml_mfp != NULL && buf->b_ml.ml_mfp->mf_fname != NULL) 2177 { 2178 OUT_STR("Vim: preserving files...\r\n"); 2179 screen_start(); // don't know where cursor is now 2180 out_flush(); 2181 ml_sync_all(FALSE, FALSE); // preserve all swap files 2182 break; 2183 } 2184 } 2185 2186 ml_close_all(FALSE); // close all memfiles, without deleting 2187 2188 OUT_STR("Vim: Finished.\r\n"); 2189 2190 getout(1); 2191 } 2192 2193 /* 2194 * Check for CTRL-C pressed, but only once in a while. 2195 * Should be used instead of ui_breakcheck() for functions that check for 2196 * each line in the file. Calling ui_breakcheck() each time takes too much 2197 * time, because it can be a system call. 2198 */ 2199 2200 #ifndef BREAKCHECK_SKIP 2201 # define BREAKCHECK_SKIP 1000 2202 #endif 2203 2204 static int breakcheck_count = 0; 2205 2206 void 2207 line_breakcheck(void) 2208 { 2209 if (++breakcheck_count >= BREAKCHECK_SKIP) 2210 { 2211 breakcheck_count = 0; 2212 ui_breakcheck(); 2213 } 2214 } 2215 2216 /* 2217 * Like line_breakcheck() but check 10 times less often. 2218 */ 2219 void 2220 fast_breakcheck(void) 2221 { 2222 if (++breakcheck_count >= BREAKCHECK_SKIP * 10) 2223 { 2224 breakcheck_count = 0; 2225 ui_breakcheck(); 2226 } 2227 } 2228 2229 /* 2230 * Like line_breakcheck() but check 100 times less often. 2231 */ 2232 void 2233 veryfast_breakcheck(void) 2234 { 2235 if (++breakcheck_count >= BREAKCHECK_SKIP * 100) 2236 { 2237 breakcheck_count = 0; 2238 ui_breakcheck(); 2239 } 2240 } 2241 2242 #if defined(VIM_BACKTICK) || defined(FEAT_EVAL) \ 2243 || (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \ 2244 || defined(PROTO) 2245 2246 #ifndef SEEK_SET 2247 # define SEEK_SET 0 2248 #endif 2249 #ifndef SEEK_END 2250 # define SEEK_END 2 2251 #endif 2252 2253 /* 2254 * Get the stdout of an external command. 2255 * If "ret_len" is NULL replace NUL characters with NL. When "ret_len" is not 2256 * NULL store the length there. 2257 * Returns an allocated string, or NULL for error. 2258 */ 2259 char_u * 2260 get_cmd_output( 2261 char_u *cmd, 2262 char_u *infile, // optional input file name 2263 int flags, // can be SHELL_SILENT 2264 int *ret_len) 2265 { 2266 char_u *tempname; 2267 char_u *command; 2268 char_u *buffer = NULL; 2269 int len; 2270 int i = 0; 2271 FILE *fd; 2272 2273 if (check_restricted() || check_secure()) 2274 return NULL; 2275 2276 // get a name for the temp file 2277 if ((tempname = vim_tempname('o', FALSE)) == NULL) 2278 { 2279 emsg(_(e_notmp)); 2280 return NULL; 2281 } 2282 2283 // Add the redirection stuff 2284 command = make_filter_cmd(cmd, infile, tempname); 2285 if (command == NULL) 2286 goto done; 2287 2288 /* 2289 * Call the shell to execute the command (errors are ignored). 2290 * Don't check timestamps here. 2291 */ 2292 ++no_check_timestamps; 2293 call_shell(command, SHELL_DOOUT | SHELL_EXPAND | flags); 2294 --no_check_timestamps; 2295 2296 vim_free(command); 2297 2298 /* 2299 * read the names from the file into memory 2300 */ 2301 # ifdef VMS 2302 // created temporary file is not always readable as binary 2303 fd = mch_fopen((char *)tempname, "r"); 2304 # else 2305 fd = mch_fopen((char *)tempname, READBIN); 2306 # endif 2307 2308 if (fd == NULL) 2309 { 2310 semsg(_(e_notopen), tempname); 2311 goto done; 2312 } 2313 2314 fseek(fd, 0L, SEEK_END); 2315 len = ftell(fd); // get size of temp file 2316 fseek(fd, 0L, SEEK_SET); 2317 2318 buffer = alloc(len + 1); 2319 if (buffer != NULL) 2320 i = (int)fread((char *)buffer, (size_t)1, (size_t)len, fd); 2321 fclose(fd); 2322 mch_remove(tempname); 2323 if (buffer == NULL) 2324 goto done; 2325 #ifdef VMS 2326 len = i; // VMS doesn't give us what we asked for... 2327 #endif 2328 if (i != len) 2329 { 2330 semsg(_(e_notread), tempname); 2331 VIM_CLEAR(buffer); 2332 } 2333 else if (ret_len == NULL) 2334 { 2335 // Change NUL into SOH, otherwise the string is truncated. 2336 for (i = 0; i < len; ++i) 2337 if (buffer[i] == NUL) 2338 buffer[i] = 1; 2339 2340 buffer[len] = NUL; // make sure the buffer is terminated 2341 } 2342 else 2343 *ret_len = len; 2344 2345 done: 2346 vim_free(tempname); 2347 return buffer; 2348 } 2349 2350 # if defined(FEAT_EVAL) || defined(PROTO) 2351 2352 static void 2353 get_cmd_output_as_rettv( 2354 typval_T *argvars, 2355 typval_T *rettv, 2356 int retlist) 2357 { 2358 char_u *res = NULL; 2359 char_u *p; 2360 char_u *infile = NULL; 2361 int err = FALSE; 2362 FILE *fd; 2363 list_T *list = NULL; 2364 int flags = SHELL_SILENT; 2365 2366 rettv->v_type = VAR_STRING; 2367 rettv->vval.v_string = NULL; 2368 if (check_restricted() || check_secure()) 2369 goto errret; 2370 2371 if (argvars[1].v_type != VAR_UNKNOWN) 2372 { 2373 /* 2374 * Write the text to a temp file, to be used for input of the shell 2375 * command. 2376 */ 2377 if ((infile = vim_tempname('i', TRUE)) == NULL) 2378 { 2379 emsg(_(e_notmp)); 2380 goto errret; 2381 } 2382 2383 fd = mch_fopen((char *)infile, WRITEBIN); 2384 if (fd == NULL) 2385 { 2386 semsg(_(e_notopen), infile); 2387 goto errret; 2388 } 2389 if (argvars[1].v_type == VAR_NUMBER) 2390 { 2391 linenr_T lnum; 2392 buf_T *buf; 2393 2394 buf = buflist_findnr(argvars[1].vval.v_number); 2395 if (buf == NULL) 2396 { 2397 semsg(_(e_nobufnr), argvars[1].vval.v_number); 2398 fclose(fd); 2399 goto errret; 2400 } 2401 2402 for (lnum = 1; lnum <= buf->b_ml.ml_line_count; lnum++) 2403 { 2404 for (p = ml_get_buf(buf, lnum, FALSE); *p != NUL; ++p) 2405 if (putc(*p == '\n' ? NUL : *p, fd) == EOF) 2406 { 2407 err = TRUE; 2408 break; 2409 } 2410 if (putc(NL, fd) == EOF) 2411 { 2412 err = TRUE; 2413 break; 2414 } 2415 } 2416 } 2417 else if (argvars[1].v_type == VAR_LIST) 2418 { 2419 if (write_list(fd, argvars[1].vval.v_list, TRUE) == FAIL) 2420 err = TRUE; 2421 } 2422 else 2423 { 2424 size_t len; 2425 char_u buf[NUMBUFLEN]; 2426 2427 p = tv_get_string_buf_chk(&argvars[1], buf); 2428 if (p == NULL) 2429 { 2430 fclose(fd); 2431 goto errret; // type error; errmsg already given 2432 } 2433 len = STRLEN(p); 2434 if (len > 0 && fwrite(p, len, 1, fd) != 1) 2435 err = TRUE; 2436 } 2437 if (fclose(fd) != 0) 2438 err = TRUE; 2439 if (err) 2440 { 2441 emsg(_("E677: Error writing temp file")); 2442 goto errret; 2443 } 2444 } 2445 2446 // Omit SHELL_COOKED when invoked with ":silent". Avoids that the shell 2447 // echoes typeahead, that messes up the display. 2448 if (!msg_silent) 2449 flags += SHELL_COOKED; 2450 2451 if (retlist) 2452 { 2453 int len; 2454 listitem_T *li; 2455 char_u *s = NULL; 2456 char_u *start; 2457 char_u *end; 2458 int i; 2459 2460 res = get_cmd_output(tv_get_string(&argvars[0]), infile, flags, &len); 2461 if (res == NULL) 2462 goto errret; 2463 2464 list = list_alloc(); 2465 if (list == NULL) 2466 goto errret; 2467 2468 for (i = 0; i < len; ++i) 2469 { 2470 start = res + i; 2471 while (i < len && res[i] != NL) 2472 ++i; 2473 end = res + i; 2474 2475 s = alloc(end - start + 1); 2476 if (s == NULL) 2477 goto errret; 2478 2479 for (p = s; start < end; ++p, ++start) 2480 *p = *start == NUL ? NL : *start; 2481 *p = NUL; 2482 2483 li = listitem_alloc(); 2484 if (li == NULL) 2485 { 2486 vim_free(s); 2487 goto errret; 2488 } 2489 li->li_tv.v_type = VAR_STRING; 2490 li->li_tv.v_lock = 0; 2491 li->li_tv.vval.v_string = s; 2492 list_append(list, li); 2493 } 2494 2495 rettv_list_set(rettv, list); 2496 list = NULL; 2497 } 2498 else 2499 { 2500 res = get_cmd_output(tv_get_string(&argvars[0]), infile, flags, NULL); 2501 #ifdef USE_CRNL 2502 // translate <CR><NL> into <NL> 2503 if (res != NULL) 2504 { 2505 char_u *s, *d; 2506 2507 d = res; 2508 for (s = res; *s; ++s) 2509 { 2510 if (s[0] == CAR && s[1] == NL) 2511 ++s; 2512 *d++ = *s; 2513 } 2514 *d = NUL; 2515 } 2516 #endif 2517 rettv->vval.v_string = res; 2518 res = NULL; 2519 } 2520 2521 errret: 2522 if (infile != NULL) 2523 { 2524 mch_remove(infile); 2525 vim_free(infile); 2526 } 2527 if (res != NULL) 2528 vim_free(res); 2529 if (list != NULL) 2530 list_free(list); 2531 } 2532 2533 /* 2534 * "system()" function 2535 */ 2536 void 2537 f_system(typval_T *argvars, typval_T *rettv) 2538 { 2539 get_cmd_output_as_rettv(argvars, rettv, FALSE); 2540 } 2541 2542 /* 2543 * "systemlist()" function 2544 */ 2545 void 2546 f_systemlist(typval_T *argvars, typval_T *rettv) 2547 { 2548 get_cmd_output_as_rettv(argvars, rettv, TRUE); 2549 } 2550 # endif // FEAT_EVAL 2551 2552 #endif 2553 2554 /* 2555 * Return TRUE when need to go to Insert mode because of 'insertmode'. 2556 * Don't do this when still processing a command or a mapping. 2557 * Don't do this when inside a ":normal" command. 2558 */ 2559 int 2560 goto_im(void) 2561 { 2562 return (p_im && stuff_empty() && typebuf_typed()); 2563 } 2564 2565 /* 2566 * Returns the isolated name of the shell in allocated memory: 2567 * - Skip beyond any path. E.g., "/usr/bin/csh -f" -> "csh -f". 2568 * - Remove any argument. E.g., "csh -f" -> "csh". 2569 * But don't allow a space in the path, so that this works: 2570 * "/usr/bin/csh --rcfile ~/.cshrc" 2571 * But don't do that for Windows, it's common to have a space in the path. 2572 * Returns NULL when out of memory. 2573 */ 2574 char_u * 2575 get_isolated_shell_name(void) 2576 { 2577 char_u *p; 2578 2579 #ifdef MSWIN 2580 p = gettail(p_sh); 2581 p = vim_strnsave(p, skiptowhite(p) - p); 2582 #else 2583 p = skiptowhite(p_sh); 2584 if (*p == NUL) 2585 { 2586 // No white space, use the tail. 2587 p = vim_strsave(gettail(p_sh)); 2588 } 2589 else 2590 { 2591 char_u *p1, *p2; 2592 2593 // Find the last path separator before the space. 2594 p1 = p_sh; 2595 for (p2 = p_sh; p2 < p; MB_PTR_ADV(p2)) 2596 if (vim_ispathsep(*p2)) 2597 p1 = p2 + 1; 2598 p = vim_strnsave(p1, p - p1); 2599 } 2600 #endif 2601 return p; 2602 } 2603 2604 /* 2605 * Check if the "://" of a URL is at the pointer, return URL_SLASH. 2606 * Also check for ":\\", which MS Internet Explorer accepts, return 2607 * URL_BACKSLASH. 2608 */ 2609 int 2610 path_is_url(char_u *p) 2611 { 2612 if (STRNCMP(p, "://", (size_t)3) == 0) 2613 return URL_SLASH; 2614 else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) 2615 return URL_BACKSLASH; 2616 return 0; 2617 } 2618 2619 /* 2620 * Check if "fname" starts with "name://". Return URL_SLASH if it does. 2621 * Return URL_BACKSLASH for "name:\\". 2622 * Return zero otherwise. 2623 */ 2624 int 2625 path_with_url(char_u *fname) 2626 { 2627 char_u *p; 2628 2629 for (p = fname; isalpha(*p); ++p) 2630 ; 2631 return path_is_url(p); 2632 } 2633