1 /* vi:set ts=8 sts=4 sw=4: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * ops.c: implementation of various operators: op_shift, op_delete, op_tilde, 12 * op_change, op_yank, do_put, do_join 13 */ 14 15 #include "vim.h" 16 17 /* 18 * Number of registers. 19 * 0 = unnamed register, for normal yanks and puts 20 * 1..9 = registers '1' to '9', for deletes 21 * 10..35 = registers 'a' to 'z' 22 * 36 = delete register '-' 23 * 37 = Selection register '*'. Only if FEAT_CLIPBOARD defined 24 * 38 = Clipboard register '+'. Only if FEAT_CLIPBOARD and FEAT_X11 defined 25 */ 26 /* 27 * Symbolic names for some registers. 28 */ 29 #define DELETION_REGISTER 36 30 #ifdef FEAT_CLIPBOARD 31 # define STAR_REGISTER 37 32 # ifdef FEAT_X11 33 # define PLUS_REGISTER 38 34 # else 35 # define PLUS_REGISTER STAR_REGISTER /* there is only one */ 36 # endif 37 #endif 38 #ifdef FEAT_DND 39 # define TILDE_REGISTER (PLUS_REGISTER + 1) 40 #endif 41 42 #ifdef FEAT_CLIPBOARD 43 # ifdef FEAT_DND 44 # define NUM_REGISTERS (TILDE_REGISTER + 1) 45 # else 46 # define NUM_REGISTERS (PLUS_REGISTER + 1) 47 # endif 48 #else 49 # define NUM_REGISTERS 37 50 #endif 51 52 /* 53 * Each yank register is an array of pointers to lines. 54 */ 55 static struct yankreg 56 { 57 char_u **y_array; /* pointer to array of line pointers */ 58 linenr_T y_size; /* number of lines in y_array */ 59 char_u y_type; /* MLINE, MCHAR or MBLOCK */ 60 #ifdef FEAT_VISUAL 61 colnr_T y_width; /* only set if y_type == MBLOCK */ 62 #endif 63 } y_regs[NUM_REGISTERS]; 64 65 static struct yankreg *y_current; /* ptr to current yankreg */ 66 static int y_append; /* TRUE when appending */ 67 static struct yankreg *y_previous = NULL; /* ptr to last written yankreg */ 68 69 /* 70 * structure used by block_prep, op_delete and op_yank for blockwise operators 71 * also op_change, op_shift, op_insert, op_replace - AKelly 72 */ 73 struct block_def 74 { 75 int startspaces; /* 'extra' cols before first char */ 76 int endspaces; /* 'extra' cols after last char */ 77 int textlen; /* chars in block */ 78 char_u *textstart; /* pointer to 1st char (partially) in block */ 79 colnr_T textcol; /* index of chars (partially) in block */ 80 colnr_T start_vcol; /* start col of 1st char wholly inside block */ 81 colnr_T end_vcol; /* start col of 1st char wholly after block */ 82 #ifdef FEAT_VISUALEXTRA 83 int is_short; /* TRUE if line is too short to fit in block */ 84 int is_MAX; /* TRUE if curswant==MAXCOL when starting */ 85 int is_oneChar; /* TRUE if block within one character */ 86 int pre_whitesp; /* screen cols of ws before block */ 87 int pre_whitesp_c; /* chars of ws before block */ 88 colnr_T end_char_vcols; /* number of vcols of post-block char */ 89 #endif 90 colnr_T start_char_vcols; /* number of vcols of pre-block char */ 91 }; 92 93 #ifdef FEAT_VISUALEXTRA 94 static void shift_block __ARGS((oparg_T *oap, int amount)); 95 static void block_insert __ARGS((oparg_T *oap, char_u *s, int b_insert, struct block_def*bdp)); 96 #endif 97 static int stuff_yank __ARGS((int, char_u *)); 98 static void put_reedit_in_typebuf __ARGS((int silent)); 99 static int put_in_typebuf __ARGS((char_u *s, int esc, int colon, 100 int silent)); 101 static void stuffescaped __ARGS((char_u *arg, int literally)); 102 #ifdef FEAT_MBYTE 103 static void mb_adjust_opend __ARGS((oparg_T *oap)); 104 #endif 105 static void free_yank __ARGS((long)); 106 static void free_yank_all __ARGS((void)); 107 static int yank_copy_line __ARGS((struct block_def *bd, long y_idx)); 108 #ifdef FEAT_CLIPBOARD 109 static void copy_yank_reg __ARGS((struct yankreg *reg)); 110 # if defined(FEAT_VISUAL) || defined(FEAT_EVAL) 111 static void may_set_selection __ARGS((void)); 112 # endif 113 #endif 114 static void dis_msg __ARGS((char_u *p, int skip_esc)); 115 #if defined(FEAT_COMMENTS) || defined(PROTO) 116 static char_u *skip_comment __ARGS((char_u *line, int process, int include_space, int *is_comment)); 117 #endif 118 #ifdef FEAT_VISUAL 119 static void block_prep __ARGS((oparg_T *oap, struct block_def *, linenr_T, int)); 120 #endif 121 #if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL) 122 static void str_to_reg __ARGS((struct yankreg *y_ptr, int type, char_u *str, long len, long blocklen)); 123 #endif 124 static int ends_in_white __ARGS((linenr_T lnum)); 125 #ifdef FEAT_COMMENTS 126 static int same_leader __ARGS((linenr_T lnum, int, char_u *, int, char_u *)); 127 static int fmt_check_par __ARGS((linenr_T, int *, char_u **, int do_comments)); 128 #else 129 static int fmt_check_par __ARGS((linenr_T)); 130 #endif 131 132 /* 133 * The names of operators. 134 * IMPORTANT: Index must correspond with defines in vim.h!!! 135 * The third field indicates whether the operator always works on lines. 136 */ 137 static char opchars[][3] = 138 { 139 {NUL, NUL, FALSE}, /* OP_NOP */ 140 {'d', NUL, FALSE}, /* OP_DELETE */ 141 {'y', NUL, FALSE}, /* OP_YANK */ 142 {'c', NUL, FALSE}, /* OP_CHANGE */ 143 {'<', NUL, TRUE}, /* OP_LSHIFT */ 144 {'>', NUL, TRUE}, /* OP_RSHIFT */ 145 {'!', NUL, TRUE}, /* OP_FILTER */ 146 {'g', '~', FALSE}, /* OP_TILDE */ 147 {'=', NUL, TRUE}, /* OP_INDENT */ 148 {'g', 'q', TRUE}, /* OP_FORMAT */ 149 {':', NUL, TRUE}, /* OP_COLON */ 150 {'g', 'U', FALSE}, /* OP_UPPER */ 151 {'g', 'u', FALSE}, /* OP_LOWER */ 152 {'J', NUL, TRUE}, /* DO_JOIN */ 153 {'g', 'J', TRUE}, /* DO_JOIN_NS */ 154 {'g', '?', FALSE}, /* OP_ROT13 */ 155 {'r', NUL, FALSE}, /* OP_REPLACE */ 156 {'I', NUL, FALSE}, /* OP_INSERT */ 157 {'A', NUL, FALSE}, /* OP_APPEND */ 158 {'z', 'f', TRUE}, /* OP_FOLD */ 159 {'z', 'o', TRUE}, /* OP_FOLDOPEN */ 160 {'z', 'O', TRUE}, /* OP_FOLDOPENREC */ 161 {'z', 'c', TRUE}, /* OP_FOLDCLOSE */ 162 {'z', 'C', TRUE}, /* OP_FOLDCLOSEREC */ 163 {'z', 'd', TRUE}, /* OP_FOLDDEL */ 164 {'z', 'D', TRUE}, /* OP_FOLDDELREC */ 165 {'g', 'w', TRUE}, /* OP_FORMAT2 */ 166 {'g', '@', FALSE}, /* OP_FUNCTION */ 167 }; 168 169 /* 170 * Translate a command name into an operator type. 171 * Must only be called with a valid operator name! 172 */ 173 int 174 get_op_type(char1, char2) 175 int char1; 176 int char2; 177 { 178 int i; 179 180 if (char1 == 'r') /* ignore second character */ 181 return OP_REPLACE; 182 if (char1 == '~') /* when tilde is an operator */ 183 return OP_TILDE; 184 for (i = 0; ; ++i) 185 if (opchars[i][0] == char1 && opchars[i][1] == char2) 186 break; 187 return i; 188 } 189 190 #if defined(FEAT_VISUAL) || defined(PROTO) 191 /* 192 * Return TRUE if operator "op" always works on whole lines. 193 */ 194 int 195 op_on_lines(op) 196 int op; 197 { 198 return opchars[op][2]; 199 } 200 #endif 201 202 /* 203 * Get first operator command character. 204 * Returns 'g' or 'z' if there is another command character. 205 */ 206 int 207 get_op_char(optype) 208 int optype; 209 { 210 return opchars[optype][0]; 211 } 212 213 /* 214 * Get second operator command character. 215 */ 216 int 217 get_extra_op_char(optype) 218 int optype; 219 { 220 return opchars[optype][1]; 221 } 222 223 /* 224 * op_shift - handle a shift operation 225 */ 226 void 227 op_shift(oap, curs_top, amount) 228 oparg_T *oap; 229 int curs_top; 230 int amount; 231 { 232 long i; 233 int first_char; 234 char_u *s; 235 #ifdef FEAT_VISUAL 236 int block_col = 0; 237 #endif 238 239 if (u_save((linenr_T)(oap->start.lnum - 1), 240 (linenr_T)(oap->end.lnum + 1)) == FAIL) 241 return; 242 243 #ifdef FEAT_VISUAL 244 if (oap->block_mode) 245 block_col = curwin->w_cursor.col; 246 #endif 247 248 for (i = oap->line_count; --i >= 0; ) 249 { 250 first_char = *ml_get_curline(); 251 if (first_char == NUL) /* empty line */ 252 curwin->w_cursor.col = 0; 253 #ifdef FEAT_VISUALEXTRA 254 else if (oap->block_mode) 255 shift_block(oap, amount); 256 #endif 257 else 258 /* Move the line right if it doesn't start with '#', 'smartindent' 259 * isn't set or 'cindent' isn't set or '#' isn't in 'cino'. */ 260 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT) 261 if (first_char != '#' || !preprocs_left()) 262 #endif 263 { 264 shift_line(oap->op_type == OP_LSHIFT, p_sr, amount, FALSE); 265 } 266 ++curwin->w_cursor.lnum; 267 } 268 269 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L); 270 271 #ifdef FEAT_VISUAL 272 if (oap->block_mode) 273 { 274 curwin->w_cursor.lnum = oap->start.lnum; 275 curwin->w_cursor.col = block_col; 276 } 277 else 278 #endif 279 if (curs_top) /* put cursor on first line, for ">>" */ 280 { 281 curwin->w_cursor.lnum = oap->start.lnum; 282 beginline(BL_SOL | BL_FIX); /* shift_line() may have set cursor.col */ 283 } 284 else 285 --curwin->w_cursor.lnum; /* put cursor on last line, for ":>" */ 286 287 if (oap->line_count > p_report) 288 { 289 if (oap->op_type == OP_RSHIFT) 290 s = (char_u *)">"; 291 else 292 s = (char_u *)"<"; 293 if (oap->line_count == 1) 294 { 295 if (amount == 1) 296 sprintf((char *)IObuff, _("1 line %sed 1 time"), s); 297 else 298 sprintf((char *)IObuff, _("1 line %sed %d times"), s, amount); 299 } 300 else 301 { 302 if (amount == 1) 303 sprintf((char *)IObuff, _("%ld lines %sed 1 time"), 304 oap->line_count, s); 305 else 306 sprintf((char *)IObuff, _("%ld lines %sed %d times"), 307 oap->line_count, s, amount); 308 } 309 msg(IObuff); 310 } 311 312 /* 313 * Set "'[" and "']" marks. 314 */ 315 curbuf->b_op_start = oap->start; 316 curbuf->b_op_end.lnum = oap->end.lnum; 317 curbuf->b_op_end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum)); 318 if (curbuf->b_op_end.col > 0) 319 --curbuf->b_op_end.col; 320 } 321 322 /* 323 * shift the current line one shiftwidth left (if left != 0) or right 324 * leaves cursor on first blank in the line 325 */ 326 void 327 shift_line(left, round, amount, call_changed_bytes) 328 int left; 329 int round; 330 int amount; 331 int call_changed_bytes; /* call changed_bytes() */ 332 { 333 int count; 334 int i, j; 335 int p_sw = (int)get_sw_value(); 336 337 count = get_indent(); /* get current indent */ 338 339 if (round) /* round off indent */ 340 { 341 i = count / p_sw; /* number of p_sw rounded down */ 342 j = count % p_sw; /* extra spaces */ 343 if (j && left) /* first remove extra spaces */ 344 --amount; 345 if (left) 346 { 347 i -= amount; 348 if (i < 0) 349 i = 0; 350 } 351 else 352 i += amount; 353 count = i * p_sw; 354 } 355 else /* original vi indent */ 356 { 357 if (left) 358 { 359 count -= p_sw * amount; 360 if (count < 0) 361 count = 0; 362 } 363 else 364 count += p_sw * amount; 365 } 366 367 /* Set new indent */ 368 #ifdef FEAT_VREPLACE 369 if (State & VREPLACE_FLAG) 370 change_indent(INDENT_SET, count, FALSE, NUL, call_changed_bytes); 371 else 372 #endif 373 (void)set_indent(count, call_changed_bytes ? SIN_CHANGED : 0); 374 } 375 376 #if defined(FEAT_VISUALEXTRA) || defined(PROTO) 377 /* 378 * Shift one line of the current block one shiftwidth right or left. 379 * Leaves cursor on first character in block. 380 */ 381 static void 382 shift_block(oap, amount) 383 oparg_T *oap; 384 int amount; 385 { 386 int left = (oap->op_type == OP_LSHIFT); 387 int oldstate = State; 388 int total; 389 char_u *newp, *oldp; 390 int oldcol = curwin->w_cursor.col; 391 int p_sw = (int)get_sw_value(); 392 int p_ts = (int)curbuf->b_p_ts; 393 struct block_def bd; 394 int incr; 395 colnr_T ws_vcol; 396 int i = 0, j = 0; 397 int len; 398 #ifdef FEAT_RIGHTLEFT 399 int old_p_ri = p_ri; 400 401 p_ri = 0; /* don't want revins in ident */ 402 #endif 403 404 State = INSERT; /* don't want REPLACE for State */ 405 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE); 406 if (bd.is_short) 407 return; 408 409 /* total is number of screen columns to be inserted/removed */ 410 total = amount * p_sw; 411 oldp = ml_get_curline(); 412 413 if (!left) 414 { 415 /* 416 * 1. Get start vcol 417 * 2. Total ws vcols 418 * 3. Divvy into TABs & spp 419 * 4. Construct new string 420 */ 421 total += bd.pre_whitesp; /* all virtual WS upto & incl a split TAB */ 422 ws_vcol = bd.start_vcol - bd.pre_whitesp; 423 if (bd.startspaces) 424 { 425 #ifdef FEAT_MBYTE 426 if (has_mbyte) 427 bd.textstart += (*mb_ptr2len)(bd.textstart); 428 else 429 #endif 430 ++bd.textstart; 431 } 432 for ( ; vim_iswhite(*bd.textstart); ) 433 { 434 incr = lbr_chartabsize_adv(&bd.textstart, (colnr_T)(bd.start_vcol)); 435 total += incr; 436 bd.start_vcol += incr; 437 } 438 /* OK, now total=all the VWS reqd, and textstart points at the 1st 439 * non-ws char in the block. */ 440 if (!curbuf->b_p_et) 441 i = ((ws_vcol % p_ts) + total) / p_ts; /* number of tabs */ 442 if (i) 443 j = ((ws_vcol % p_ts) + total) % p_ts; /* number of spp */ 444 else 445 j = total; 446 /* if we're splitting a TAB, allow for it */ 447 bd.textcol -= bd.pre_whitesp_c - (bd.startspaces != 0); 448 len = (int)STRLEN(bd.textstart) + 1; 449 newp = alloc_check((unsigned)(bd.textcol + i + j + len)); 450 if (newp == NULL) 451 return; 452 vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + len)); 453 mch_memmove(newp, oldp, (size_t)bd.textcol); 454 copy_chars(newp + bd.textcol, (size_t)i, TAB); 455 copy_spaces(newp + bd.textcol + i, (size_t)j); 456 /* the end */ 457 mch_memmove(newp + bd.textcol + i + j, bd.textstart, (size_t)len); 458 } 459 else /* left */ 460 { 461 colnr_T destination_col; /* column to which text in block will 462 be shifted */ 463 char_u *verbatim_copy_end; /* end of the part of the line which is 464 copied verbatim */ 465 colnr_T verbatim_copy_width;/* the (displayed) width of this part 466 of line */ 467 unsigned fill; /* nr of spaces that replace a TAB */ 468 unsigned new_line_len; /* the length of the line after the 469 block shift */ 470 size_t block_space_width; 471 size_t shift_amount; 472 char_u *non_white = bd.textstart; 473 colnr_T non_white_col; 474 475 /* 476 * Firstly, let's find the first non-whitespace character that is 477 * displayed after the block's start column and the character's column 478 * number. Also, let's calculate the width of all the whitespace 479 * characters that are displayed in the block and precede the searched 480 * non-whitespace character. 481 */ 482 483 /* If "bd.startspaces" is set, "bd.textstart" points to the character, 484 * the part of which is displayed at the block's beginning. Let's start 485 * searching from the next character. */ 486 if (bd.startspaces) 487 mb_ptr_adv(non_white); 488 489 /* The character's column is in "bd.start_vcol". */ 490 non_white_col = bd.start_vcol; 491 492 while (vim_iswhite(*non_white)) 493 { 494 incr = lbr_chartabsize_adv(&non_white, non_white_col); 495 non_white_col += incr; 496 } 497 498 block_space_width = non_white_col - oap->start_vcol; 499 /* We will shift by "total" or "block_space_width", whichever is less. 500 */ 501 shift_amount = (block_space_width < (size_t)total 502 ? block_space_width : (size_t)total); 503 504 /* The column to which we will shift the text. */ 505 destination_col = (colnr_T)(non_white_col - shift_amount); 506 507 /* Now let's find out how much of the beginning of the line we can 508 * reuse without modification. */ 509 verbatim_copy_end = bd.textstart; 510 verbatim_copy_width = bd.start_vcol; 511 512 /* If "bd.startspaces" is set, "bd.textstart" points to the character 513 * preceding the block. We have to subtract its width to obtain its 514 * column number. */ 515 if (bd.startspaces) 516 verbatim_copy_width -= bd.start_char_vcols; 517 while (verbatim_copy_width < destination_col) 518 { 519 incr = lbr_chartabsize(verbatim_copy_end, verbatim_copy_width); 520 if (verbatim_copy_width + incr > destination_col) 521 break; 522 verbatim_copy_width += incr; 523 mb_ptr_adv(verbatim_copy_end); 524 } 525 526 /* If "destination_col" is different from the width of the initial 527 * part of the line that will be copied, it means we encountered a tab 528 * character, which we will have to partly replace with spaces. */ 529 fill = destination_col - verbatim_copy_width; 530 531 /* The replacement line will consist of: 532 * - the beginning of the original line up to "verbatim_copy_end", 533 * - "fill" number of spaces, 534 * - the rest of the line, pointed to by non_white. */ 535 new_line_len = (unsigned)(verbatim_copy_end - oldp) 536 + fill 537 + (unsigned)STRLEN(non_white) + 1; 538 539 newp = alloc_check(new_line_len); 540 if (newp == NULL) 541 return; 542 mch_memmove(newp, oldp, (size_t)(verbatim_copy_end - oldp)); 543 copy_spaces(newp + (verbatim_copy_end - oldp), (size_t)fill); 544 STRMOVE(newp + (verbatim_copy_end - oldp) + fill, non_white); 545 } 546 /* replace the line */ 547 ml_replace(curwin->w_cursor.lnum, newp, FALSE); 548 changed_bytes(curwin->w_cursor.lnum, (colnr_T)bd.textcol); 549 State = oldstate; 550 curwin->w_cursor.col = oldcol; 551 #ifdef FEAT_RIGHTLEFT 552 p_ri = old_p_ri; 553 #endif 554 } 555 #endif 556 557 #ifdef FEAT_VISUALEXTRA 558 /* 559 * Insert string "s" (b_insert ? before : after) block :AKelly 560 * Caller must prepare for undo. 561 */ 562 static void 563 block_insert(oap, s, b_insert, bdp) 564 oparg_T *oap; 565 char_u *s; 566 int b_insert; 567 struct block_def *bdp; 568 { 569 int p_ts; 570 int count = 0; /* extra spaces to replace a cut TAB */ 571 int spaces = 0; /* non-zero if cutting a TAB */ 572 colnr_T offset; /* pointer along new line */ 573 unsigned s_len; /* STRLEN(s) */ 574 char_u *newp, *oldp; /* new, old lines */ 575 linenr_T lnum; /* loop var */ 576 int oldstate = State; 577 578 State = INSERT; /* don't want REPLACE for State */ 579 s_len = (unsigned)STRLEN(s); 580 581 for (lnum = oap->start.lnum + 1; lnum <= oap->end.lnum; lnum++) 582 { 583 block_prep(oap, bdp, lnum, TRUE); 584 if (bdp->is_short && b_insert) 585 continue; /* OP_INSERT, line ends before block start */ 586 587 oldp = ml_get(lnum); 588 589 if (b_insert) 590 { 591 p_ts = bdp->start_char_vcols; 592 spaces = bdp->startspaces; 593 if (spaces != 0) 594 count = p_ts - 1; /* we're cutting a TAB */ 595 offset = bdp->textcol; 596 } 597 else /* append */ 598 { 599 p_ts = bdp->end_char_vcols; 600 if (!bdp->is_short) /* spaces = padding after block */ 601 { 602 spaces = (bdp->endspaces ? p_ts - bdp->endspaces : 0); 603 if (spaces != 0) 604 count = p_ts - 1; /* we're cutting a TAB */ 605 offset = bdp->textcol + bdp->textlen - (spaces != 0); 606 } 607 else /* spaces = padding to block edge */ 608 { 609 /* if $ used, just append to EOL (ie spaces==0) */ 610 if (!bdp->is_MAX) 611 spaces = (oap->end_vcol - bdp->end_vcol) + 1; 612 count = spaces; 613 offset = bdp->textcol + bdp->textlen; 614 } 615 } 616 617 newp = alloc_check((unsigned)(STRLEN(oldp)) + s_len + count + 1); 618 if (newp == NULL) 619 continue; 620 621 /* copy up to shifted part */ 622 mch_memmove(newp, oldp, (size_t)(offset)); 623 oldp += offset; 624 625 /* insert pre-padding */ 626 copy_spaces(newp + offset, (size_t)spaces); 627 628 /* copy the new text */ 629 mch_memmove(newp + offset + spaces, s, (size_t)s_len); 630 offset += s_len; 631 632 if (spaces && !bdp->is_short) 633 { 634 /* insert post-padding */ 635 copy_spaces(newp + offset + spaces, (size_t)(p_ts - spaces)); 636 /* We're splitting a TAB, don't copy it. */ 637 oldp++; 638 /* We allowed for that TAB, remember this now */ 639 count++; 640 } 641 642 if (spaces > 0) 643 offset += count; 644 STRMOVE(newp + offset, oldp); 645 646 ml_replace(lnum, newp, FALSE); 647 648 if (lnum == oap->end.lnum) 649 { 650 /* Set "']" mark to the end of the block instead of the end of 651 * the insert in the first line. */ 652 curbuf->b_op_end.lnum = oap->end.lnum; 653 curbuf->b_op_end.col = offset; 654 } 655 } /* for all lnum */ 656 657 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L); 658 659 State = oldstate; 660 } 661 #endif 662 663 #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(PROTO) 664 /* 665 * op_reindent - handle reindenting a block of lines. 666 */ 667 void 668 op_reindent(oap, how) 669 oparg_T *oap; 670 int (*how) __ARGS((void)); 671 { 672 long i; 673 char_u *l; 674 int count; 675 linenr_T first_changed = 0; 676 linenr_T last_changed = 0; 677 linenr_T start_lnum = curwin->w_cursor.lnum; 678 679 /* Don't even try when 'modifiable' is off. */ 680 if (!curbuf->b_p_ma) 681 { 682 EMSG(_(e_modifiable)); 683 return; 684 } 685 686 for (i = oap->line_count; --i >= 0 && !got_int; ) 687 { 688 /* it's a slow thing to do, so give feedback so there's no worry that 689 * the computer's just hung. */ 690 691 if (i > 1 692 && (i % 50 == 0 || i == oap->line_count - 1) 693 && oap->line_count > p_report) 694 smsg((char_u *)_("%ld lines to indent... "), i); 695 696 /* 697 * Be vi-compatible: For lisp indenting the first line is not 698 * indented, unless there is only one line. 699 */ 700 #ifdef FEAT_LISP 701 if (i != oap->line_count - 1 || oap->line_count == 1 702 || how != get_lisp_indent) 703 #endif 704 { 705 l = skipwhite(ml_get_curline()); 706 if (*l == NUL) /* empty or blank line */ 707 count = 0; 708 else 709 count = how(); /* get the indent for this line */ 710 711 if (set_indent(count, SIN_UNDO)) 712 { 713 /* did change the indent, call changed_lines() later */ 714 if (first_changed == 0) 715 first_changed = curwin->w_cursor.lnum; 716 last_changed = curwin->w_cursor.lnum; 717 } 718 } 719 ++curwin->w_cursor.lnum; 720 curwin->w_cursor.col = 0; /* make sure it's valid */ 721 } 722 723 /* put cursor on first non-blank of indented line */ 724 curwin->w_cursor.lnum = start_lnum; 725 beginline(BL_SOL | BL_FIX); 726 727 /* Mark changed lines so that they will be redrawn. When Visual 728 * highlighting was present, need to continue until the last line. When 729 * there is no change still need to remove the Visual highlighting. */ 730 if (last_changed != 0) 731 changed_lines(first_changed, 0, 732 #ifdef FEAT_VISUAL 733 oap->is_VIsual ? start_lnum + oap->line_count : 734 #endif 735 last_changed + 1, 0L); 736 #ifdef FEAT_VISUAL 737 else if (oap->is_VIsual) 738 redraw_curbuf_later(INVERTED); 739 #endif 740 741 if (oap->line_count > p_report) 742 { 743 i = oap->line_count - (i + 1); 744 if (i == 1) 745 MSG(_("1 line indented ")); 746 else 747 smsg((char_u *)_("%ld lines indented "), i); 748 } 749 /* set '[ and '] marks */ 750 curbuf->b_op_start = oap->start; 751 curbuf->b_op_end = oap->end; 752 } 753 #endif /* defined(FEAT_LISP) || defined(FEAT_CINDENT) */ 754 755 #if defined(FEAT_EVAL) || defined(PROTO) 756 /* 757 * Keep the last expression line here, for repeating. 758 */ 759 static char_u *expr_line = NULL; 760 761 /* 762 * Get an expression for the "\"=expr1" or "CTRL-R =expr1" 763 * Returns '=' when OK, NUL otherwise. 764 */ 765 int 766 get_expr_register() 767 { 768 char_u *new_line; 769 770 new_line = getcmdline('=', 0L, 0); 771 if (new_line == NULL) 772 return NUL; 773 if (*new_line == NUL) /* use previous line */ 774 vim_free(new_line); 775 else 776 set_expr_line(new_line); 777 return '='; 778 } 779 780 /* 781 * Set the expression for the '=' register. 782 * Argument must be an allocated string. 783 */ 784 void 785 set_expr_line(new_line) 786 char_u *new_line; 787 { 788 vim_free(expr_line); 789 expr_line = new_line; 790 } 791 792 /* 793 * Get the result of the '=' register expression. 794 * Returns a pointer to allocated memory, or NULL for failure. 795 */ 796 char_u * 797 get_expr_line() 798 { 799 char_u *expr_copy; 800 char_u *rv; 801 static int nested = 0; 802 803 if (expr_line == NULL) 804 return NULL; 805 806 /* Make a copy of the expression, because evaluating it may cause it to be 807 * changed. */ 808 expr_copy = vim_strsave(expr_line); 809 if (expr_copy == NULL) 810 return NULL; 811 812 /* When we are invoked recursively limit the evaluation to 10 levels. 813 * Then return the string as-is. */ 814 if (nested >= 10) 815 return expr_copy; 816 817 ++nested; 818 rv = eval_to_string(expr_copy, NULL, TRUE); 819 --nested; 820 vim_free(expr_copy); 821 return rv; 822 } 823 824 /* 825 * Get the '=' register expression itself, without evaluating it. 826 */ 827 char_u * 828 get_expr_line_src() 829 { 830 if (expr_line == NULL) 831 return NULL; 832 return vim_strsave(expr_line); 833 } 834 #endif /* FEAT_EVAL */ 835 836 /* 837 * Check if 'regname' is a valid name of a yank register. 838 * Note: There is no check for 0 (default register), caller should do this 839 */ 840 int 841 valid_yank_reg(regname, writing) 842 int regname; 843 int writing; /* if TRUE check for writable registers */ 844 { 845 if ( (regname > 0 && ASCII_ISALNUM(regname)) 846 || (!writing && vim_strchr((char_u *) 847 #ifdef FEAT_EVAL 848 "/.%#:=" 849 #else 850 "/.%#:" 851 #endif 852 , regname) != NULL) 853 || regname == '"' 854 || regname == '-' 855 || regname == '_' 856 #ifdef FEAT_CLIPBOARD 857 || regname == '*' 858 || regname == '+' 859 #endif 860 #ifdef FEAT_DND 861 || (!writing && regname == '~') 862 #endif 863 ) 864 return TRUE; 865 return FALSE; 866 } 867 868 /* 869 * Set y_current and y_append, according to the value of "regname". 870 * Cannot handle the '_' register. 871 * Must only be called with a valid register name! 872 * 873 * If regname is 0 and writing, use register 0 874 * If regname is 0 and reading, use previous register 875 */ 876 void 877 get_yank_register(regname, writing) 878 int regname; 879 int writing; 880 { 881 int i; 882 883 y_append = FALSE; 884 if ((regname == 0 || regname == '"') && !writing && y_previous != NULL) 885 { 886 y_current = y_previous; 887 return; 888 } 889 i = regname; 890 if (VIM_ISDIGIT(i)) 891 i -= '0'; 892 else if (ASCII_ISLOWER(i)) 893 i = CharOrdLow(i) + 10; 894 else if (ASCII_ISUPPER(i)) 895 { 896 i = CharOrdUp(i) + 10; 897 y_append = TRUE; 898 } 899 else if (regname == '-') 900 i = DELETION_REGISTER; 901 #ifdef FEAT_CLIPBOARD 902 /* When selection is not available, use register 0 instead of '*' */ 903 else if (clip_star.available && regname == '*') 904 i = STAR_REGISTER; 905 /* When clipboard is not available, use register 0 instead of '+' */ 906 else if (clip_plus.available && regname == '+') 907 i = PLUS_REGISTER; 908 #endif 909 #ifdef FEAT_DND 910 else if (!writing && regname == '~') 911 i = TILDE_REGISTER; 912 #endif 913 else /* not 0-9, a-z, A-Z or '-': use register 0 */ 914 i = 0; 915 y_current = &(y_regs[i]); 916 if (writing) /* remember the register we write into for do_put() */ 917 y_previous = y_current; 918 } 919 920 #if defined(FEAT_CLIPBOARD) || defined(PROTO) 921 /* 922 * When "regname" is a clipboard register, obtain the selection. If it's not 923 * available return zero, otherwise return "regname". 924 */ 925 int 926 may_get_selection(regname) 927 int regname; 928 { 929 if (regname == '*') 930 { 931 if (!clip_star.available) 932 regname = 0; 933 else 934 clip_get_selection(&clip_star); 935 } 936 else if (regname == '+') 937 { 938 if (!clip_plus.available) 939 regname = 0; 940 else 941 clip_get_selection(&clip_plus); 942 } 943 return regname; 944 } 945 #endif 946 947 #if defined(FEAT_VISUAL) || defined(PROTO) 948 /* 949 * Obtain the contents of a "normal" register. The register is made empty. 950 * The returned pointer has allocated memory, use put_register() later. 951 */ 952 void * 953 get_register(name, copy) 954 int name; 955 int copy; /* make a copy, if FALSE make register empty. */ 956 { 957 struct yankreg *reg; 958 int i; 959 960 #ifdef FEAT_CLIPBOARD 961 /* When Visual area changed, may have to update selection. Obtain the 962 * selection too. */ 963 if (name == '*' && clip_star.available) 964 { 965 if (clip_isautosel_star()) 966 clip_update_selection(&clip_star); 967 may_get_selection(name); 968 } 969 if (name == '+' && clip_plus.available) 970 { 971 if (clip_isautosel_plus()) 972 clip_update_selection(&clip_plus); 973 may_get_selection(name); 974 } 975 #endif 976 977 get_yank_register(name, 0); 978 reg = (struct yankreg *)alloc((unsigned)sizeof(struct yankreg)); 979 if (reg != NULL) 980 { 981 *reg = *y_current; 982 if (copy) 983 { 984 /* If we run out of memory some or all of the lines are empty. */ 985 if (reg->y_size == 0) 986 reg->y_array = NULL; 987 else 988 reg->y_array = (char_u **)alloc((unsigned)(sizeof(char_u *) 989 * reg->y_size)); 990 if (reg->y_array != NULL) 991 { 992 for (i = 0; i < reg->y_size; ++i) 993 reg->y_array[i] = vim_strsave(y_current->y_array[i]); 994 } 995 } 996 else 997 y_current->y_array = NULL; 998 } 999 return (void *)reg; 1000 } 1001 1002 /* 1003 * Put "reg" into register "name". Free any previous contents and "reg". 1004 */ 1005 void 1006 put_register(name, reg) 1007 int name; 1008 void *reg; 1009 { 1010 get_yank_register(name, 0); 1011 free_yank_all(); 1012 *y_current = *(struct yankreg *)reg; 1013 vim_free(reg); 1014 1015 # ifdef FEAT_CLIPBOARD 1016 /* Send text written to clipboard register to the clipboard. */ 1017 may_set_selection(); 1018 # endif 1019 } 1020 #endif 1021 1022 #if defined(FEAT_MOUSE) || defined(PROTO) 1023 /* 1024 * return TRUE if the current yank register has type MLINE 1025 */ 1026 int 1027 yank_register_mline(regname) 1028 int regname; 1029 { 1030 if (regname != 0 && !valid_yank_reg(regname, FALSE)) 1031 return FALSE; 1032 if (regname == '_') /* black hole is always empty */ 1033 return FALSE; 1034 get_yank_register(regname, FALSE); 1035 return (y_current->y_type == MLINE); 1036 } 1037 #endif 1038 1039 /* 1040 * Start or stop recording into a yank register. 1041 * 1042 * Return FAIL for failure, OK otherwise. 1043 */ 1044 int 1045 do_record(c) 1046 int c; 1047 { 1048 char_u *p; 1049 static int regname; 1050 struct yankreg *old_y_previous, *old_y_current; 1051 int retval; 1052 1053 if (Recording == FALSE) /* start recording */ 1054 { 1055 /* registers 0-9, a-z and " are allowed */ 1056 if (c < 0 || (!ASCII_ISALNUM(c) && c != '"')) 1057 retval = FAIL; 1058 else 1059 { 1060 Recording = TRUE; 1061 showmode(); 1062 regname = c; 1063 retval = OK; 1064 } 1065 } 1066 else /* stop recording */ 1067 { 1068 /* 1069 * Get the recorded key hits. K_SPECIAL and CSI will be escaped, this 1070 * needs to be removed again to put it in a register. exec_reg then 1071 * adds the escaping back later. 1072 */ 1073 Recording = FALSE; 1074 MSG(""); 1075 p = get_recorded(); 1076 if (p == NULL) 1077 retval = FAIL; 1078 else 1079 { 1080 /* Remove escaping for CSI and K_SPECIAL in multi-byte chars. */ 1081 vim_unescape_csi(p); 1082 1083 /* 1084 * We don't want to change the default register here, so save and 1085 * restore the current register name. 1086 */ 1087 old_y_previous = y_previous; 1088 old_y_current = y_current; 1089 1090 retval = stuff_yank(regname, p); 1091 1092 y_previous = old_y_previous; 1093 y_current = old_y_current; 1094 } 1095 } 1096 return retval; 1097 } 1098 1099 /* 1100 * Stuff string "p" into yank register "regname" as a single line (append if 1101 * uppercase). "p" must have been alloced. 1102 * 1103 * return FAIL for failure, OK otherwise 1104 */ 1105 static int 1106 stuff_yank(regname, p) 1107 int regname; 1108 char_u *p; 1109 { 1110 char_u *lp; 1111 char_u **pp; 1112 1113 /* check for read-only register */ 1114 if (regname != 0 && !valid_yank_reg(regname, TRUE)) 1115 { 1116 vim_free(p); 1117 return FAIL; 1118 } 1119 if (regname == '_') /* black hole: don't do anything */ 1120 { 1121 vim_free(p); 1122 return OK; 1123 } 1124 get_yank_register(regname, TRUE); 1125 if (y_append && y_current->y_array != NULL) 1126 { 1127 pp = &(y_current->y_array[y_current->y_size - 1]); 1128 lp = lalloc((long_u)(STRLEN(*pp) + STRLEN(p) + 1), TRUE); 1129 if (lp == NULL) 1130 { 1131 vim_free(p); 1132 return FAIL; 1133 } 1134 STRCPY(lp, *pp); 1135 STRCAT(lp, p); 1136 vim_free(p); 1137 vim_free(*pp); 1138 *pp = lp; 1139 } 1140 else 1141 { 1142 free_yank_all(); 1143 if ((y_current->y_array = 1144 (char_u **)alloc((unsigned)sizeof(char_u *))) == NULL) 1145 { 1146 vim_free(p); 1147 return FAIL; 1148 } 1149 y_current->y_array[0] = p; 1150 y_current->y_size = 1; 1151 y_current->y_type = MCHAR; /* used to be MLINE, why? */ 1152 } 1153 return OK; 1154 } 1155 1156 static int execreg_lastc = NUL; 1157 1158 /* 1159 * execute a yank register: copy it into the stuff buffer 1160 * 1161 * return FAIL for failure, OK otherwise 1162 */ 1163 int 1164 do_execreg(regname, colon, addcr, silent) 1165 int regname; 1166 int colon; /* insert ':' before each line */ 1167 int addcr; /* always add '\n' to end of line */ 1168 int silent; /* set "silent" flag in typeahead buffer */ 1169 { 1170 long i; 1171 char_u *p; 1172 int retval = OK; 1173 int remap; 1174 1175 if (regname == '@') /* repeat previous one */ 1176 { 1177 if (execreg_lastc == NUL) 1178 { 1179 EMSG(_("E748: No previously used register")); 1180 return FAIL; 1181 } 1182 regname = execreg_lastc; 1183 } 1184 /* check for valid regname */ 1185 if (regname == '%' || regname == '#' || !valid_yank_reg(regname, FALSE)) 1186 { 1187 emsg_invreg(regname); 1188 return FAIL; 1189 } 1190 execreg_lastc = regname; 1191 1192 #ifdef FEAT_CLIPBOARD 1193 regname = may_get_selection(regname); 1194 #endif 1195 1196 if (regname == '_') /* black hole: don't stuff anything */ 1197 return OK; 1198 1199 #ifdef FEAT_CMDHIST 1200 if (regname == ':') /* use last command line */ 1201 { 1202 if (last_cmdline == NULL) 1203 { 1204 EMSG(_(e_nolastcmd)); 1205 return FAIL; 1206 } 1207 vim_free(new_last_cmdline); /* don't keep the cmdline containing @: */ 1208 new_last_cmdline = NULL; 1209 /* Escape all control characters with a CTRL-V */ 1210 p = vim_strsave_escaped_ext(last_cmdline, 1211 (char_u *)"\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037", Ctrl_V, FALSE); 1212 if (p != NULL) 1213 { 1214 /* When in Visual mode "'<,'>" will be prepended to the command. 1215 * Remove it when it's already there. */ 1216 if (VIsual_active && STRNCMP(p, "'<,'>", 5) == 0) 1217 retval = put_in_typebuf(p + 5, TRUE, TRUE, silent); 1218 else 1219 retval = put_in_typebuf(p, TRUE, TRUE, silent); 1220 } 1221 vim_free(p); 1222 } 1223 #endif 1224 #ifdef FEAT_EVAL 1225 else if (regname == '=') 1226 { 1227 p = get_expr_line(); 1228 if (p == NULL) 1229 return FAIL; 1230 retval = put_in_typebuf(p, TRUE, colon, silent); 1231 vim_free(p); 1232 } 1233 #endif 1234 else if (regname == '.') /* use last inserted text */ 1235 { 1236 p = get_last_insert_save(); 1237 if (p == NULL) 1238 { 1239 EMSG(_(e_noinstext)); 1240 return FAIL; 1241 } 1242 retval = put_in_typebuf(p, FALSE, colon, silent); 1243 vim_free(p); 1244 } 1245 else 1246 { 1247 get_yank_register(regname, FALSE); 1248 if (y_current->y_array == NULL) 1249 return FAIL; 1250 1251 /* Disallow remaping for ":@r". */ 1252 remap = colon ? REMAP_NONE : REMAP_YES; 1253 1254 /* 1255 * Insert lines into typeahead buffer, from last one to first one. 1256 */ 1257 put_reedit_in_typebuf(silent); 1258 for (i = y_current->y_size; --i >= 0; ) 1259 { 1260 char_u *escaped; 1261 1262 /* insert NL between lines and after last line if type is MLINE */ 1263 if (y_current->y_type == MLINE || i < y_current->y_size - 1 1264 || addcr) 1265 { 1266 if (ins_typebuf((char_u *)"\n", remap, 0, TRUE, silent) == FAIL) 1267 return FAIL; 1268 } 1269 escaped = vim_strsave_escape_csi(y_current->y_array[i]); 1270 if (escaped == NULL) 1271 return FAIL; 1272 retval = ins_typebuf(escaped, remap, 0, TRUE, silent); 1273 vim_free(escaped); 1274 if (retval == FAIL) 1275 return FAIL; 1276 if (colon && ins_typebuf((char_u *)":", remap, 0, TRUE, silent) 1277 == FAIL) 1278 return FAIL; 1279 } 1280 Exec_reg = TRUE; /* disable the 'q' command */ 1281 } 1282 return retval; 1283 } 1284 1285 /* 1286 * If "restart_edit" is not zero, put it in the typeahead buffer, so that it's 1287 * used only after other typeahead has been processed. 1288 */ 1289 static void 1290 put_reedit_in_typebuf(silent) 1291 int silent; 1292 { 1293 char_u buf[3]; 1294 1295 if (restart_edit != NUL) 1296 { 1297 if (restart_edit == 'V') 1298 { 1299 buf[0] = 'g'; 1300 buf[1] = 'R'; 1301 buf[2] = NUL; 1302 } 1303 else 1304 { 1305 buf[0] = restart_edit == 'I' ? 'i' : restart_edit; 1306 buf[1] = NUL; 1307 } 1308 if (ins_typebuf(buf, REMAP_NONE, 0, TRUE, silent) == OK) 1309 restart_edit = NUL; 1310 } 1311 } 1312 1313 /* 1314 * Insert register contents "s" into the typeahead buffer, so that it will be 1315 * executed again. 1316 * When "esc" is TRUE it is to be taken literally: Escape CSI characters and 1317 * no remapping. 1318 */ 1319 static int 1320 put_in_typebuf(s, esc, colon, silent) 1321 char_u *s; 1322 int esc; 1323 int colon; /* add ':' before the line */ 1324 int silent; 1325 { 1326 int retval = OK; 1327 1328 put_reedit_in_typebuf(silent); 1329 if (colon) 1330 retval = ins_typebuf((char_u *)"\n", REMAP_NONE, 0, TRUE, silent); 1331 if (retval == OK) 1332 { 1333 char_u *p; 1334 1335 if (esc) 1336 p = vim_strsave_escape_csi(s); 1337 else 1338 p = s; 1339 if (p == NULL) 1340 retval = FAIL; 1341 else 1342 retval = ins_typebuf(p, esc ? REMAP_NONE : REMAP_YES, 1343 0, TRUE, silent); 1344 if (esc) 1345 vim_free(p); 1346 } 1347 if (colon && retval == OK) 1348 retval = ins_typebuf((char_u *)":", REMAP_NONE, 0, TRUE, silent); 1349 return retval; 1350 } 1351 1352 /* 1353 * Insert a yank register: copy it into the Read buffer. 1354 * Used by CTRL-R command and middle mouse button in insert mode. 1355 * 1356 * return FAIL for failure, OK otherwise 1357 */ 1358 int 1359 insert_reg(regname, literally) 1360 int regname; 1361 int literally; /* insert literally, not as if typed */ 1362 { 1363 long i; 1364 int retval = OK; 1365 char_u *arg; 1366 int allocated; 1367 1368 /* 1369 * It is possible to get into an endless loop by having CTRL-R a in 1370 * register a and then, in insert mode, doing CTRL-R a. 1371 * If you hit CTRL-C, the loop will be broken here. 1372 */ 1373 ui_breakcheck(); 1374 if (got_int) 1375 return FAIL; 1376 1377 /* check for valid regname */ 1378 if (regname != NUL && !valid_yank_reg(regname, FALSE)) 1379 return FAIL; 1380 1381 #ifdef FEAT_CLIPBOARD 1382 regname = may_get_selection(regname); 1383 #endif 1384 1385 if (regname == '.') /* insert last inserted text */ 1386 retval = stuff_inserted(NUL, 1L, TRUE); 1387 else if (get_spec_reg(regname, &arg, &allocated, TRUE)) 1388 { 1389 if (arg == NULL) 1390 return FAIL; 1391 stuffescaped(arg, literally); 1392 if (allocated) 1393 vim_free(arg); 1394 } 1395 else /* name or number register */ 1396 { 1397 get_yank_register(regname, FALSE); 1398 if (y_current->y_array == NULL) 1399 retval = FAIL; 1400 else 1401 { 1402 for (i = 0; i < y_current->y_size; ++i) 1403 { 1404 stuffescaped(y_current->y_array[i], literally); 1405 /* 1406 * Insert a newline between lines and after last line if 1407 * y_type is MLINE. 1408 */ 1409 if (y_current->y_type == MLINE || i < y_current->y_size - 1) 1410 stuffcharReadbuff('\n'); 1411 } 1412 } 1413 } 1414 1415 return retval; 1416 } 1417 1418 /* 1419 * Stuff a string into the typeahead buffer, such that edit() will insert it 1420 * literally ("literally" TRUE) or interpret is as typed characters. 1421 */ 1422 static void 1423 stuffescaped(arg, literally) 1424 char_u *arg; 1425 int literally; 1426 { 1427 int c; 1428 char_u *start; 1429 1430 while (*arg != NUL) 1431 { 1432 /* Stuff a sequence of normal ASCII characters, that's fast. Also 1433 * stuff K_SPECIAL to get the effect of a special key when "literally" 1434 * is TRUE. */ 1435 start = arg; 1436 while ((*arg >= ' ' 1437 #ifndef EBCDIC 1438 && *arg < DEL /* EBCDIC: chars above space are normal */ 1439 #endif 1440 ) 1441 || (*arg == K_SPECIAL && !literally)) 1442 ++arg; 1443 if (arg > start) 1444 stuffReadbuffLen(start, (long)(arg - start)); 1445 1446 /* stuff a single special character */ 1447 if (*arg != NUL) 1448 { 1449 #ifdef FEAT_MBYTE 1450 if (has_mbyte) 1451 c = mb_cptr2char_adv(&arg); 1452 else 1453 #endif 1454 c = *arg++; 1455 if (literally && ((c < ' ' && c != TAB) || c == DEL)) 1456 stuffcharReadbuff(Ctrl_V); 1457 stuffcharReadbuff(c); 1458 } 1459 } 1460 } 1461 1462 /* 1463 * If "regname" is a special register, return TRUE and store a pointer to its 1464 * value in "argp". 1465 */ 1466 int 1467 get_spec_reg(regname, argp, allocated, errmsg) 1468 int regname; 1469 char_u **argp; 1470 int *allocated; /* return: TRUE when value was allocated */ 1471 int errmsg; /* give error message when failing */ 1472 { 1473 int cnt; 1474 1475 *argp = NULL; 1476 *allocated = FALSE; 1477 switch (regname) 1478 { 1479 case '%': /* file name */ 1480 if (errmsg) 1481 check_fname(); /* will give emsg if not set */ 1482 *argp = curbuf->b_fname; 1483 return TRUE; 1484 1485 case '#': /* alternate file name */ 1486 *argp = getaltfname(errmsg); /* may give emsg if not set */ 1487 return TRUE; 1488 1489 #ifdef FEAT_EVAL 1490 case '=': /* result of expression */ 1491 *argp = get_expr_line(); 1492 *allocated = TRUE; 1493 return TRUE; 1494 #endif 1495 1496 case ':': /* last command line */ 1497 if (last_cmdline == NULL && errmsg) 1498 EMSG(_(e_nolastcmd)); 1499 *argp = last_cmdline; 1500 return TRUE; 1501 1502 case '/': /* last search-pattern */ 1503 if (last_search_pat() == NULL && errmsg) 1504 EMSG(_(e_noprevre)); 1505 *argp = last_search_pat(); 1506 return TRUE; 1507 1508 case '.': /* last inserted text */ 1509 *argp = get_last_insert_save(); 1510 *allocated = TRUE; 1511 if (*argp == NULL && errmsg) 1512 EMSG(_(e_noinstext)); 1513 return TRUE; 1514 1515 #ifdef FEAT_SEARCHPATH 1516 case Ctrl_F: /* Filename under cursor */ 1517 case Ctrl_P: /* Path under cursor, expand via "path" */ 1518 if (!errmsg) 1519 return FALSE; 1520 *argp = file_name_at_cursor(FNAME_MESS | FNAME_HYP 1521 | (regname == Ctrl_P ? FNAME_EXP : 0), 1L, NULL); 1522 *allocated = TRUE; 1523 return TRUE; 1524 #endif 1525 1526 case Ctrl_W: /* word under cursor */ 1527 case Ctrl_A: /* WORD (mnemonic All) under cursor */ 1528 if (!errmsg) 1529 return FALSE; 1530 cnt = find_ident_under_cursor(argp, regname == Ctrl_W 1531 ? (FIND_IDENT|FIND_STRING) : FIND_STRING); 1532 *argp = cnt ? vim_strnsave(*argp, cnt) : NULL; 1533 *allocated = TRUE; 1534 return TRUE; 1535 1536 case '_': /* black hole: always empty */ 1537 *argp = (char_u *)""; 1538 return TRUE; 1539 } 1540 1541 return FALSE; 1542 } 1543 1544 /* 1545 * Paste a yank register into the command line. 1546 * Only for non-special registers. 1547 * Used by CTRL-R command in command-line mode 1548 * insert_reg() can't be used here, because special characters from the 1549 * register contents will be interpreted as commands. 1550 * 1551 * return FAIL for failure, OK otherwise 1552 */ 1553 int 1554 cmdline_paste_reg(regname, literally, remcr) 1555 int regname; 1556 int literally; /* Insert text literally instead of "as typed" */ 1557 int remcr; /* don't add trailing CR */ 1558 { 1559 long i; 1560 1561 get_yank_register(regname, FALSE); 1562 if (y_current->y_array == NULL) 1563 return FAIL; 1564 1565 for (i = 0; i < y_current->y_size; ++i) 1566 { 1567 cmdline_paste_str(y_current->y_array[i], literally); 1568 1569 /* Insert ^M between lines and after last line if type is MLINE. 1570 * Don't do this when "remcr" is TRUE and the next line is empty. */ 1571 if (y_current->y_type == MLINE 1572 || (i < y_current->y_size - 1 1573 && !(remcr 1574 && i == y_current->y_size - 2 1575 && *y_current->y_array[i + 1] == NUL))) 1576 cmdline_paste_str((char_u *)"\r", literally); 1577 1578 /* Check for CTRL-C, in case someone tries to paste a few thousand 1579 * lines and gets bored. */ 1580 ui_breakcheck(); 1581 if (got_int) 1582 return FAIL; 1583 } 1584 return OK; 1585 } 1586 1587 #if defined(FEAT_CLIPBOARD) || defined(PROTO) 1588 /* 1589 * Adjust the register name pointed to with "rp" for the clipboard being 1590 * used always and the clipboard being available. 1591 */ 1592 void 1593 adjust_clip_reg(rp) 1594 int *rp; 1595 { 1596 /* If no reg. specified, and "unnamed" or "unnamedplus" is in 'clipboard', 1597 * use '*' or '+' reg, respectively. "unnamedplus" prevails. */ 1598 if (*rp == 0 && clip_unnamed != 0) 1599 *rp = ((clip_unnamed & CLIP_UNNAMED_PLUS) && clip_plus.available) 1600 ? '+' : '*'; 1601 if (!clip_star.available && *rp == '*') 1602 *rp = 0; 1603 if (!clip_plus.available && *rp == '+') 1604 *rp = 0; 1605 } 1606 #endif 1607 1608 /* 1609 * Handle a delete operation. 1610 * 1611 * Return FAIL if undo failed, OK otherwise. 1612 */ 1613 int 1614 op_delete(oap) 1615 oparg_T *oap; 1616 { 1617 int n; 1618 linenr_T lnum; 1619 char_u *ptr; 1620 #ifdef FEAT_VISUAL 1621 char_u *newp, *oldp; 1622 struct block_def bd; 1623 #endif 1624 linenr_T old_lcount = curbuf->b_ml.ml_line_count; 1625 int did_yank = FALSE; 1626 int orig_regname = oap->regname; 1627 1628 if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to do */ 1629 return OK; 1630 1631 /* Nothing to delete, return here. Do prepare undo, for op_change(). */ 1632 if (oap->empty) 1633 return u_save_cursor(); 1634 1635 if (!curbuf->b_p_ma) 1636 { 1637 EMSG(_(e_modifiable)); 1638 return FAIL; 1639 } 1640 1641 #ifdef FEAT_CLIPBOARD 1642 adjust_clip_reg(&oap->regname); 1643 #endif 1644 1645 #ifdef FEAT_MBYTE 1646 if (has_mbyte) 1647 mb_adjust_opend(oap); 1648 #endif 1649 1650 /* 1651 * Imitate the strange Vi behaviour: If the delete spans more than one 1652 * line and motion_type == MCHAR and the result is a blank line, make the 1653 * delete linewise. Don't do this for the change command or Visual mode. 1654 */ 1655 if ( oap->motion_type == MCHAR 1656 #ifdef FEAT_VISUAL 1657 && !oap->is_VIsual 1658 && !oap->block_mode 1659 #endif 1660 && oap->line_count > 1 1661 && oap->motion_force == NUL 1662 && oap->op_type == OP_DELETE) 1663 { 1664 ptr = ml_get(oap->end.lnum) + oap->end.col; 1665 if (*ptr != NUL) 1666 ptr += oap->inclusive; 1667 ptr = skipwhite(ptr); 1668 if (*ptr == NUL && inindent(0)) 1669 oap->motion_type = MLINE; 1670 } 1671 1672 /* 1673 * Check for trying to delete (e.g. "D") in an empty line. 1674 * Note: For the change operator it is ok. 1675 */ 1676 if ( oap->motion_type == MCHAR 1677 && oap->line_count == 1 1678 && oap->op_type == OP_DELETE 1679 && *ml_get(oap->start.lnum) == NUL) 1680 { 1681 /* 1682 * It's an error to operate on an empty region, when 'E' included in 1683 * 'cpoptions' (Vi compatible). 1684 */ 1685 #ifdef FEAT_VIRTUALEDIT 1686 if (virtual_op) 1687 /* Virtual editing: Nothing gets deleted, but we set the '[ and '] 1688 * marks as if it happened. */ 1689 goto setmarks; 1690 #endif 1691 if (vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL) 1692 beep_flush(); 1693 return OK; 1694 } 1695 1696 /* 1697 * Do a yank of whatever we're about to delete. 1698 * If a yank register was specified, put the deleted text into that 1699 * register. For the black hole register '_' don't yank anything. 1700 */ 1701 if (oap->regname != '_') 1702 { 1703 if (oap->regname != 0) 1704 { 1705 /* check for read-only register */ 1706 if (!valid_yank_reg(oap->regname, TRUE)) 1707 { 1708 beep_flush(); 1709 return OK; 1710 } 1711 get_yank_register(oap->regname, TRUE); /* yank into specif'd reg. */ 1712 if (op_yank(oap, TRUE, FALSE) == OK) /* yank without message */ 1713 did_yank = TRUE; 1714 } 1715 1716 /* 1717 * Put deleted text into register 1 and shift number registers if the 1718 * delete contains a line break, or when a regname has been specified. 1719 * Use the register name from before adjust_clip_reg() may have 1720 * changed it. 1721 */ 1722 if (orig_regname != 0 || oap->motion_type == MLINE 1723 || oap->line_count > 1 || oap->use_reg_one) 1724 { 1725 y_current = &y_regs[9]; 1726 free_yank_all(); /* free register nine */ 1727 for (n = 9; n > 1; --n) 1728 y_regs[n] = y_regs[n - 1]; 1729 y_previous = y_current = &y_regs[1]; 1730 y_regs[1].y_array = NULL; /* set register one to empty */ 1731 if (op_yank(oap, TRUE, FALSE) == OK) 1732 did_yank = TRUE; 1733 } 1734 1735 /* Yank into small delete register when no named register specified 1736 * and the delete is within one line. */ 1737 if (( 1738 #ifdef FEAT_CLIPBOARD 1739 ((clip_unnamed & CLIP_UNNAMED) && oap->regname == '*') || 1740 ((clip_unnamed & CLIP_UNNAMED_PLUS) && oap->regname == '+') || 1741 #endif 1742 oap->regname == 0) && oap->motion_type != MLINE 1743 && oap->line_count == 1) 1744 { 1745 oap->regname = '-'; 1746 get_yank_register(oap->regname, TRUE); 1747 if (op_yank(oap, TRUE, FALSE) == OK) 1748 did_yank = TRUE; 1749 oap->regname = 0; 1750 } 1751 1752 /* 1753 * If there's too much stuff to fit in the yank register, then get a 1754 * confirmation before doing the delete. This is crude, but simple. 1755 * And it avoids doing a delete of something we can't put back if we 1756 * want. 1757 */ 1758 if (!did_yank) 1759 { 1760 int msg_silent_save = msg_silent; 1761 1762 msg_silent = 0; /* must display the prompt */ 1763 n = ask_yesno((char_u *)_("cannot yank; delete anyway"), TRUE); 1764 msg_silent = msg_silent_save; 1765 if (n != 'y') 1766 { 1767 EMSG(_(e_abort)); 1768 return FAIL; 1769 } 1770 } 1771 } 1772 1773 #ifdef FEAT_VISUAL 1774 /* 1775 * block mode delete 1776 */ 1777 if (oap->block_mode) 1778 { 1779 if (u_save((linenr_T)(oap->start.lnum - 1), 1780 (linenr_T)(oap->end.lnum + 1)) == FAIL) 1781 return FAIL; 1782 1783 for (lnum = curwin->w_cursor.lnum; lnum <= oap->end.lnum; ++lnum) 1784 { 1785 block_prep(oap, &bd, lnum, TRUE); 1786 if (bd.textlen == 0) /* nothing to delete */ 1787 continue; 1788 1789 /* Adjust cursor position for tab replaced by spaces and 'lbr'. */ 1790 if (lnum == curwin->w_cursor.lnum) 1791 { 1792 curwin->w_cursor.col = bd.textcol + bd.startspaces; 1793 # ifdef FEAT_VIRTUALEDIT 1794 curwin->w_cursor.coladd = 0; 1795 # endif 1796 } 1797 1798 /* n == number of chars deleted 1799 * If we delete a TAB, it may be replaced by several characters. 1800 * Thus the number of characters may increase! 1801 */ 1802 n = bd.textlen - bd.startspaces - bd.endspaces; 1803 oldp = ml_get(lnum); 1804 newp = alloc_check((unsigned)STRLEN(oldp) + 1 - n); 1805 if (newp == NULL) 1806 continue; 1807 /* copy up to deleted part */ 1808 mch_memmove(newp, oldp, (size_t)bd.textcol); 1809 /* insert spaces */ 1810 copy_spaces(newp + bd.textcol, 1811 (size_t)(bd.startspaces + bd.endspaces)); 1812 /* copy the part after the deleted part */ 1813 oldp += bd.textcol + bd.textlen; 1814 STRMOVE(newp + bd.textcol + bd.startspaces + bd.endspaces, oldp); 1815 /* replace the line */ 1816 ml_replace(lnum, newp, FALSE); 1817 } 1818 1819 check_cursor_col(); 1820 changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col, 1821 oap->end.lnum + 1, 0L); 1822 oap->line_count = 0; /* no lines deleted */ 1823 } 1824 else 1825 #endif 1826 if (oap->motion_type == MLINE) 1827 { 1828 if (oap->op_type == OP_CHANGE) 1829 { 1830 /* Delete the lines except the first one. Temporarily move the 1831 * cursor to the next line. Save the current line number, if the 1832 * last line is deleted it may be changed. 1833 */ 1834 if (oap->line_count > 1) 1835 { 1836 lnum = curwin->w_cursor.lnum; 1837 ++curwin->w_cursor.lnum; 1838 del_lines((long)(oap->line_count - 1), TRUE); 1839 curwin->w_cursor.lnum = lnum; 1840 } 1841 if (u_save_cursor() == FAIL) 1842 return FAIL; 1843 if (curbuf->b_p_ai) /* don't delete indent */ 1844 { 1845 beginline(BL_WHITE); /* cursor on first non-white */ 1846 did_ai = TRUE; /* delete the indent when ESC hit */ 1847 ai_col = curwin->w_cursor.col; 1848 } 1849 else 1850 beginline(0); /* cursor in column 0 */ 1851 truncate_line(FALSE); /* delete the rest of the line */ 1852 /* leave cursor past last char in line */ 1853 if (oap->line_count > 1) 1854 u_clearline(); /* "U" command not possible after "2cc" */ 1855 } 1856 else 1857 { 1858 del_lines(oap->line_count, TRUE); 1859 beginline(BL_WHITE | BL_FIX); 1860 u_clearline(); /* "U" command not possible after "dd" */ 1861 } 1862 } 1863 else 1864 { 1865 #ifdef FEAT_VIRTUALEDIT 1866 if (virtual_op) 1867 { 1868 int endcol = 0; 1869 1870 /* For virtualedit: break the tabs that are partly included. */ 1871 if (gchar_pos(&oap->start) == '\t') 1872 { 1873 if (u_save_cursor() == FAIL) /* save first line for undo */ 1874 return FAIL; 1875 if (oap->line_count == 1) 1876 endcol = getviscol2(oap->end.col, oap->end.coladd); 1877 coladvance_force(getviscol2(oap->start.col, oap->start.coladd)); 1878 oap->start = curwin->w_cursor; 1879 if (oap->line_count == 1) 1880 { 1881 coladvance(endcol); 1882 oap->end.col = curwin->w_cursor.col; 1883 oap->end.coladd = curwin->w_cursor.coladd; 1884 curwin->w_cursor = oap->start; 1885 } 1886 } 1887 1888 /* Break a tab only when it's included in the area. */ 1889 if (gchar_pos(&oap->end) == '\t' 1890 && (int)oap->end.coladd < oap->inclusive) 1891 { 1892 /* save last line for undo */ 1893 if (u_save((linenr_T)(oap->end.lnum - 1), 1894 (linenr_T)(oap->end.lnum + 1)) == FAIL) 1895 return FAIL; 1896 curwin->w_cursor = oap->end; 1897 coladvance_force(getviscol2(oap->end.col, oap->end.coladd)); 1898 oap->end = curwin->w_cursor; 1899 curwin->w_cursor = oap->start; 1900 } 1901 } 1902 #endif 1903 1904 if (oap->line_count == 1) /* delete characters within one line */ 1905 { 1906 if (u_save_cursor() == FAIL) /* save line for undo */ 1907 return FAIL; 1908 1909 /* if 'cpoptions' contains '$', display '$' at end of change */ 1910 if ( vim_strchr(p_cpo, CPO_DOLLAR) != NULL 1911 && oap->op_type == OP_CHANGE 1912 && oap->end.lnum == curwin->w_cursor.lnum 1913 #ifdef FEAT_VISUAL 1914 && !oap->is_VIsual 1915 #endif 1916 ) 1917 display_dollar(oap->end.col - !oap->inclusive); 1918 1919 n = oap->end.col - oap->start.col + 1 - !oap->inclusive; 1920 1921 #ifdef FEAT_VIRTUALEDIT 1922 if (virtual_op) 1923 { 1924 /* fix up things for virtualedit-delete: 1925 * break the tabs which are going to get in our way 1926 */ 1927 char_u *curline = ml_get_curline(); 1928 int len = (int)STRLEN(curline); 1929 1930 if (oap->end.coladd != 0 1931 && (int)oap->end.col >= len - 1 1932 && !(oap->start.coladd && (int)oap->end.col >= len - 1)) 1933 n++; 1934 /* Delete at least one char (e.g, when on a control char). */ 1935 if (n == 0 && oap->start.coladd != oap->end.coladd) 1936 n = 1; 1937 1938 /* When deleted a char in the line, reset coladd. */ 1939 if (gchar_cursor() != NUL) 1940 curwin->w_cursor.coladd = 0; 1941 } 1942 #endif 1943 if (oap->op_type == OP_DELETE 1944 && oap->inclusive 1945 && oap->end.lnum == curbuf->b_ml.ml_line_count 1946 && n > (int)STRLEN(ml_get(oap->end.lnum))) 1947 { 1948 /* Special case: gH<Del> deletes the last line. */ 1949 del_lines(1L, FALSE); 1950 } 1951 else 1952 { 1953 (void)del_bytes((long)n, !virtual_op, oap->op_type == OP_DELETE 1954 #ifdef FEAT_VISUAL 1955 && !oap->is_VIsual 1956 #endif 1957 ); 1958 } 1959 } 1960 else /* delete characters between lines */ 1961 { 1962 pos_T curpos; 1963 int delete_last_line; 1964 1965 /* save deleted and changed lines for undo */ 1966 if (u_save((linenr_T)(curwin->w_cursor.lnum - 1), 1967 (linenr_T)(curwin->w_cursor.lnum + oap->line_count)) == FAIL) 1968 return FAIL; 1969 1970 delete_last_line = (oap->end.lnum == curbuf->b_ml.ml_line_count); 1971 truncate_line(TRUE); /* delete from cursor to end of line */ 1972 1973 curpos = curwin->w_cursor; /* remember curwin->w_cursor */ 1974 ++curwin->w_cursor.lnum; 1975 del_lines((long)(oap->line_count - 2), FALSE); 1976 1977 if (delete_last_line) 1978 oap->end.lnum = curbuf->b_ml.ml_line_count; 1979 1980 n = (oap->end.col + 1 - !oap->inclusive); 1981 if (oap->inclusive && delete_last_line 1982 && n > (int)STRLEN(ml_get(oap->end.lnum))) 1983 { 1984 /* Special case: gH<Del> deletes the last line. */ 1985 del_lines(1L, FALSE); 1986 curwin->w_cursor = curpos; /* restore curwin->w_cursor */ 1987 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) 1988 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; 1989 } 1990 else 1991 { 1992 /* delete from start of line until op_end */ 1993 curwin->w_cursor.col = 0; 1994 (void)del_bytes((long)n, !virtual_op, oap->op_type == OP_DELETE 1995 #ifdef FEAT_VISUAL 1996 && !oap->is_VIsual 1997 #endif 1998 ); 1999 curwin->w_cursor = curpos; /* restore curwin->w_cursor */ 2000 } 2001 if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) 2002 (void)do_join(2, FALSE, FALSE, FALSE); 2003 } 2004 } 2005 2006 msgmore(curbuf->b_ml.ml_line_count - old_lcount); 2007 2008 #ifdef FEAT_VIRTUALEDIT 2009 setmarks: 2010 #endif 2011 #ifdef FEAT_VISUAL 2012 if (oap->block_mode) 2013 { 2014 curbuf->b_op_end.lnum = oap->end.lnum; 2015 curbuf->b_op_end.col = oap->start.col; 2016 } 2017 else 2018 #endif 2019 curbuf->b_op_end = oap->start; 2020 curbuf->b_op_start = oap->start; 2021 2022 return OK; 2023 } 2024 2025 #ifdef FEAT_MBYTE 2026 /* 2027 * Adjust end of operating area for ending on a multi-byte character. 2028 * Used for deletion. 2029 */ 2030 static void 2031 mb_adjust_opend(oap) 2032 oparg_T *oap; 2033 { 2034 char_u *p; 2035 2036 if (oap->inclusive) 2037 { 2038 p = ml_get(oap->end.lnum); 2039 oap->end.col += mb_tail_off(p, p + oap->end.col); 2040 } 2041 } 2042 #endif 2043 2044 #if defined(FEAT_VISUALEXTRA) || defined(PROTO) 2045 /* 2046 * Replace a whole area with one character. 2047 */ 2048 int 2049 op_replace(oap, c) 2050 oparg_T *oap; 2051 int c; 2052 { 2053 int n, numc; 2054 #ifdef FEAT_MBYTE 2055 int num_chars; 2056 #endif 2057 char_u *newp, *oldp; 2058 size_t oldlen; 2059 struct block_def bd; 2060 2061 if ((curbuf->b_ml.ml_flags & ML_EMPTY ) || oap->empty) 2062 return OK; /* nothing to do */ 2063 2064 #ifdef FEAT_MBYTE 2065 if (has_mbyte) 2066 mb_adjust_opend(oap); 2067 #endif 2068 2069 if (u_save((linenr_T)(oap->start.lnum - 1), 2070 (linenr_T)(oap->end.lnum + 1)) == FAIL) 2071 return FAIL; 2072 2073 /* 2074 * block mode replace 2075 */ 2076 if (oap->block_mode) 2077 { 2078 bd.is_MAX = (curwin->w_curswant == MAXCOL); 2079 for ( ; curwin->w_cursor.lnum <= oap->end.lnum; ++curwin->w_cursor.lnum) 2080 { 2081 curwin->w_cursor.col = 0; /* make sure cursor position is valid */ 2082 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE); 2083 if (bd.textlen == 0 && (!virtual_op || bd.is_MAX)) 2084 continue; /* nothing to replace */ 2085 2086 /* n == number of extra chars required 2087 * If we split a TAB, it may be replaced by several characters. 2088 * Thus the number of characters may increase! 2089 */ 2090 #ifdef FEAT_VIRTUALEDIT 2091 /* If the range starts in virtual space, count the initial 2092 * coladd offset as part of "startspaces" */ 2093 if (virtual_op && bd.is_short && *bd.textstart == NUL) 2094 { 2095 pos_T vpos; 2096 2097 vpos.lnum = curwin->w_cursor.lnum; 2098 getvpos(&vpos, oap->start_vcol); 2099 bd.startspaces += vpos.coladd; 2100 n = bd.startspaces; 2101 } 2102 else 2103 #endif 2104 /* allow for pre spaces */ 2105 n = (bd.startspaces ? bd.start_char_vcols - 1 : 0); 2106 2107 /* allow for post spp */ 2108 n += (bd.endspaces 2109 #ifdef FEAT_VIRTUALEDIT 2110 && !bd.is_oneChar 2111 #endif 2112 && bd.end_char_vcols > 0) ? bd.end_char_vcols - 1 : 0; 2113 /* Figure out how many characters to replace. */ 2114 numc = oap->end_vcol - oap->start_vcol + 1; 2115 if (bd.is_short && (!virtual_op || bd.is_MAX)) 2116 numc -= (oap->end_vcol - bd.end_vcol) + 1; 2117 2118 #ifdef FEAT_MBYTE 2119 /* A double-wide character can be replaced only up to half the 2120 * times. */ 2121 if ((*mb_char2cells)(c) > 1) 2122 { 2123 if ((numc & 1) && !bd.is_short) 2124 { 2125 ++bd.endspaces; 2126 ++n; 2127 } 2128 numc = numc / 2; 2129 } 2130 2131 /* Compute bytes needed, move character count to num_chars. */ 2132 num_chars = numc; 2133 numc *= (*mb_char2len)(c); 2134 #endif 2135 /* oldlen includes textlen, so don't double count */ 2136 n += numc - bd.textlen; 2137 2138 oldp = ml_get_curline(); 2139 oldlen = STRLEN(oldp); 2140 newp = alloc_check((unsigned)oldlen + 1 + n); 2141 if (newp == NULL) 2142 continue; 2143 vim_memset(newp, NUL, (size_t)(oldlen + 1 + n)); 2144 /* copy up to deleted part */ 2145 mch_memmove(newp, oldp, (size_t)bd.textcol); 2146 oldp += bd.textcol + bd.textlen; 2147 /* insert pre-spaces */ 2148 copy_spaces(newp + bd.textcol, (size_t)bd.startspaces); 2149 /* insert replacement chars CHECK FOR ALLOCATED SPACE */ 2150 #ifdef FEAT_MBYTE 2151 if (has_mbyte) 2152 { 2153 n = (int)STRLEN(newp); 2154 while (--num_chars >= 0) 2155 n += (*mb_char2bytes)(c, newp + n); 2156 } 2157 else 2158 #endif 2159 copy_chars(newp + STRLEN(newp), (size_t)numc, c); 2160 if (!bd.is_short) 2161 { 2162 /* insert post-spaces */ 2163 copy_spaces(newp + STRLEN(newp), (size_t)bd.endspaces); 2164 /* copy the part after the changed part */ 2165 STRMOVE(newp + STRLEN(newp), oldp); 2166 } 2167 /* replace the line */ 2168 ml_replace(curwin->w_cursor.lnum, newp, FALSE); 2169 } 2170 } 2171 else 2172 { 2173 /* 2174 * MCHAR and MLINE motion replace. 2175 */ 2176 if (oap->motion_type == MLINE) 2177 { 2178 oap->start.col = 0; 2179 curwin->w_cursor.col = 0; 2180 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum)); 2181 if (oap->end.col) 2182 --oap->end.col; 2183 } 2184 else if (!oap->inclusive) 2185 dec(&(oap->end)); 2186 2187 while (ltoreq(curwin->w_cursor, oap->end)) 2188 { 2189 n = gchar_cursor(); 2190 if (n != NUL) 2191 { 2192 #ifdef FEAT_MBYTE 2193 if ((*mb_char2len)(c) > 1 || (*mb_char2len)(n) > 1) 2194 { 2195 /* This is slow, but it handles replacing a single-byte 2196 * with a multi-byte and the other way around. */ 2197 oap->end.col += (*mb_char2len)(c) - (*mb_char2len)(n); 2198 n = State; 2199 State = REPLACE; 2200 ins_char(c); 2201 State = n; 2202 /* Backup to the replaced character. */ 2203 dec_cursor(); 2204 } 2205 else 2206 #endif 2207 { 2208 #ifdef FEAT_VIRTUALEDIT 2209 if (n == TAB) 2210 { 2211 int end_vcol = 0; 2212 2213 if (curwin->w_cursor.lnum == oap->end.lnum) 2214 { 2215 /* oap->end has to be recalculated when 2216 * the tab breaks */ 2217 end_vcol = getviscol2(oap->end.col, 2218 oap->end.coladd); 2219 } 2220 coladvance_force(getviscol()); 2221 if (curwin->w_cursor.lnum == oap->end.lnum) 2222 getvpos(&oap->end, end_vcol); 2223 } 2224 #endif 2225 pchar(curwin->w_cursor, c); 2226 } 2227 } 2228 #ifdef FEAT_VIRTUALEDIT 2229 else if (virtual_op && curwin->w_cursor.lnum == oap->end.lnum) 2230 { 2231 int virtcols = oap->end.coladd; 2232 2233 if (curwin->w_cursor.lnum == oap->start.lnum 2234 && oap->start.col == oap->end.col && oap->start.coladd) 2235 virtcols -= oap->start.coladd; 2236 2237 /* oap->end has been trimmed so it's effectively inclusive; 2238 * as a result an extra +1 must be counted so we don't 2239 * trample the NUL byte. */ 2240 coladvance_force(getviscol2(oap->end.col, oap->end.coladd) + 1); 2241 curwin->w_cursor.col -= (virtcols + 1); 2242 for (; virtcols >= 0; virtcols--) 2243 { 2244 pchar(curwin->w_cursor, c); 2245 if (inc(&curwin->w_cursor) == -1) 2246 break; 2247 } 2248 } 2249 #endif 2250 2251 /* Advance to next character, stop at the end of the file. */ 2252 if (inc_cursor() == -1) 2253 break; 2254 } 2255 } 2256 2257 curwin->w_cursor = oap->start; 2258 check_cursor(); 2259 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1, 0L); 2260 2261 /* Set "'[" and "']" marks. */ 2262 curbuf->b_op_start = oap->start; 2263 curbuf->b_op_end = oap->end; 2264 2265 return OK; 2266 } 2267 #endif 2268 2269 static int swapchars __ARGS((int op_type, pos_T *pos, int length)); 2270 2271 /* 2272 * Handle the (non-standard vi) tilde operator. Also for "gu", "gU" and "g?". 2273 */ 2274 void 2275 op_tilde(oap) 2276 oparg_T *oap; 2277 { 2278 pos_T pos; 2279 #ifdef FEAT_VISUAL 2280 struct block_def bd; 2281 #endif 2282 int did_change = FALSE; 2283 2284 if (u_save((linenr_T)(oap->start.lnum - 1), 2285 (linenr_T)(oap->end.lnum + 1)) == FAIL) 2286 return; 2287 2288 pos = oap->start; 2289 #ifdef FEAT_VISUAL 2290 if (oap->block_mode) /* Visual block mode */ 2291 { 2292 for (; pos.lnum <= oap->end.lnum; ++pos.lnum) 2293 { 2294 int one_change; 2295 2296 block_prep(oap, &bd, pos.lnum, FALSE); 2297 pos.col = bd.textcol; 2298 one_change = swapchars(oap->op_type, &pos, bd.textlen); 2299 did_change |= one_change; 2300 2301 # ifdef FEAT_NETBEANS_INTG 2302 if (netbeans_active() && one_change) 2303 { 2304 char_u *ptr = ml_get_buf(curbuf, pos.lnum, FALSE); 2305 2306 netbeans_removed(curbuf, pos.lnum, bd.textcol, 2307 (long)bd.textlen); 2308 netbeans_inserted(curbuf, pos.lnum, bd.textcol, 2309 &ptr[bd.textcol], bd.textlen); 2310 } 2311 # endif 2312 } 2313 if (did_change) 2314 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L); 2315 } 2316 else /* not block mode */ 2317 #endif 2318 { 2319 if (oap->motion_type == MLINE) 2320 { 2321 oap->start.col = 0; 2322 pos.col = 0; 2323 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum)); 2324 if (oap->end.col) 2325 --oap->end.col; 2326 } 2327 else if (!oap->inclusive) 2328 dec(&(oap->end)); 2329 2330 if (pos.lnum == oap->end.lnum) 2331 did_change = swapchars(oap->op_type, &pos, 2332 oap->end.col - pos.col + 1); 2333 else 2334 for (;;) 2335 { 2336 did_change |= swapchars(oap->op_type, &pos, 2337 pos.lnum == oap->end.lnum ? oap->end.col + 1: 2338 (int)STRLEN(ml_get_pos(&pos))); 2339 if (ltoreq(oap->end, pos) || inc(&pos) == -1) 2340 break; 2341 } 2342 if (did_change) 2343 { 2344 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1, 2345 0L); 2346 #ifdef FEAT_NETBEANS_INTG 2347 if (netbeans_active() && did_change) 2348 { 2349 char_u *ptr; 2350 int count; 2351 2352 pos = oap->start; 2353 while (pos.lnum < oap->end.lnum) 2354 { 2355 ptr = ml_get_buf(curbuf, pos.lnum, FALSE); 2356 count = (int)STRLEN(ptr) - pos.col; 2357 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count); 2358 netbeans_inserted(curbuf, pos.lnum, pos.col, 2359 &ptr[pos.col], count); 2360 pos.col = 0; 2361 pos.lnum++; 2362 } 2363 ptr = ml_get_buf(curbuf, pos.lnum, FALSE); 2364 count = oap->end.col - pos.col + 1; 2365 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count); 2366 netbeans_inserted(curbuf, pos.lnum, pos.col, 2367 &ptr[pos.col], count); 2368 } 2369 #endif 2370 } 2371 } 2372 2373 #ifdef FEAT_VISUAL 2374 if (!did_change && oap->is_VIsual) 2375 /* No change: need to remove the Visual selection */ 2376 redraw_curbuf_later(INVERTED); 2377 #endif 2378 2379 /* 2380 * Set '[ and '] marks. 2381 */ 2382 curbuf->b_op_start = oap->start; 2383 curbuf->b_op_end = oap->end; 2384 2385 if (oap->line_count > p_report) 2386 { 2387 if (oap->line_count == 1) 2388 MSG(_("1 line changed")); 2389 else 2390 smsg((char_u *)_("%ld lines changed"), oap->line_count); 2391 } 2392 } 2393 2394 /* 2395 * Invoke swapchar() on "length" bytes at position "pos". 2396 * "pos" is advanced to just after the changed characters. 2397 * "length" is rounded up to include the whole last multi-byte character. 2398 * Also works correctly when the number of bytes changes. 2399 * Returns TRUE if some character was changed. 2400 */ 2401 static int 2402 swapchars(op_type, pos, length) 2403 int op_type; 2404 pos_T *pos; 2405 int length; 2406 { 2407 int todo; 2408 int did_change = 0; 2409 2410 for (todo = length; todo > 0; --todo) 2411 { 2412 # ifdef FEAT_MBYTE 2413 if (has_mbyte) 2414 /* we're counting bytes, not characters */ 2415 todo -= (*mb_ptr2len)(ml_get_pos(pos)) - 1; 2416 # endif 2417 did_change |= swapchar(op_type, pos); 2418 if (inc(pos) == -1) /* at end of file */ 2419 break; 2420 } 2421 return did_change; 2422 } 2423 2424 /* 2425 * If op_type == OP_UPPER: make uppercase, 2426 * if op_type == OP_LOWER: make lowercase, 2427 * if op_type == OP_ROT13: do rot13 encoding, 2428 * else swap case of character at 'pos' 2429 * returns TRUE when something actually changed. 2430 */ 2431 int 2432 swapchar(op_type, pos) 2433 int op_type; 2434 pos_T *pos; 2435 { 2436 int c; 2437 int nc; 2438 2439 c = gchar_pos(pos); 2440 2441 /* Only do rot13 encoding for ASCII characters. */ 2442 if (c >= 0x80 && op_type == OP_ROT13) 2443 return FALSE; 2444 2445 #ifdef FEAT_MBYTE 2446 if (op_type == OP_UPPER && c == 0xdf 2447 && (enc_latin1like || STRCMP(p_enc, "iso-8859-2") == 0)) 2448 { 2449 pos_T sp = curwin->w_cursor; 2450 2451 /* Special handling of German sharp s: change to "SS". */ 2452 curwin->w_cursor = *pos; 2453 del_char(FALSE); 2454 ins_char('S'); 2455 ins_char('S'); 2456 curwin->w_cursor = sp; 2457 inc(pos); 2458 } 2459 2460 if (enc_dbcs != 0 && c >= 0x100) /* No lower/uppercase letter */ 2461 return FALSE; 2462 #endif 2463 nc = c; 2464 if (MB_ISLOWER(c)) 2465 { 2466 if (op_type == OP_ROT13) 2467 nc = ROT13(c, 'a'); 2468 else if (op_type != OP_LOWER) 2469 nc = MB_TOUPPER(c); 2470 } 2471 else if (MB_ISUPPER(c)) 2472 { 2473 if (op_type == OP_ROT13) 2474 nc = ROT13(c, 'A'); 2475 else if (op_type != OP_UPPER) 2476 nc = MB_TOLOWER(c); 2477 } 2478 if (nc != c) 2479 { 2480 #ifdef FEAT_MBYTE 2481 if (enc_utf8 && (c >= 0x80 || nc >= 0x80)) 2482 { 2483 pos_T sp = curwin->w_cursor; 2484 2485 curwin->w_cursor = *pos; 2486 /* don't use del_char(), it also removes composing chars */ 2487 del_bytes(utf_ptr2len(ml_get_cursor()), FALSE, FALSE); 2488 ins_char(nc); 2489 curwin->w_cursor = sp; 2490 } 2491 else 2492 #endif 2493 pchar(*pos, nc); 2494 return TRUE; 2495 } 2496 return FALSE; 2497 } 2498 2499 #if defined(FEAT_VISUALEXTRA) || defined(PROTO) 2500 /* 2501 * op_insert - Insert and append operators for Visual mode. 2502 */ 2503 void 2504 op_insert(oap, count1) 2505 oparg_T *oap; 2506 long count1; 2507 { 2508 long ins_len, pre_textlen = 0; 2509 char_u *firstline, *ins_text; 2510 struct block_def bd; 2511 int i; 2512 2513 /* edit() changes this - record it for OP_APPEND */ 2514 bd.is_MAX = (curwin->w_curswant == MAXCOL); 2515 2516 /* vis block is still marked. Get rid of it now. */ 2517 curwin->w_cursor.lnum = oap->start.lnum; 2518 update_screen(INVERTED); 2519 2520 if (oap->block_mode) 2521 { 2522 #ifdef FEAT_VIRTUALEDIT 2523 /* When 'virtualedit' is used, need to insert the extra spaces before 2524 * doing block_prep(). When only "block" is used, virtual edit is 2525 * already disabled, but still need it when calling 2526 * coladvance_force(). */ 2527 if (curwin->w_cursor.coladd > 0) 2528 { 2529 int old_ve_flags = ve_flags; 2530 2531 ve_flags = VE_ALL; 2532 if (u_save_cursor() == FAIL) 2533 return; 2534 coladvance_force(oap->op_type == OP_APPEND 2535 ? oap->end_vcol + 1 : getviscol()); 2536 if (oap->op_type == OP_APPEND) 2537 --curwin->w_cursor.col; 2538 ve_flags = old_ve_flags; 2539 } 2540 #endif 2541 /* Get the info about the block before entering the text */ 2542 block_prep(oap, &bd, oap->start.lnum, TRUE); 2543 firstline = ml_get(oap->start.lnum) + bd.textcol; 2544 if (oap->op_type == OP_APPEND) 2545 firstline += bd.textlen; 2546 pre_textlen = (long)STRLEN(firstline); 2547 } 2548 2549 if (oap->op_type == OP_APPEND) 2550 { 2551 if (oap->block_mode 2552 #ifdef FEAT_VIRTUALEDIT 2553 && curwin->w_cursor.coladd == 0 2554 #endif 2555 ) 2556 { 2557 /* Move the cursor to the character right of the block. */ 2558 curwin->w_set_curswant = TRUE; 2559 while (*ml_get_cursor() != NUL 2560 && (curwin->w_cursor.col < bd.textcol + bd.textlen)) 2561 ++curwin->w_cursor.col; 2562 if (bd.is_short && !bd.is_MAX) 2563 { 2564 /* First line was too short, make it longer and adjust the 2565 * values in "bd". */ 2566 if (u_save_cursor() == FAIL) 2567 return; 2568 for (i = 0; i < bd.endspaces; ++i) 2569 ins_char(' '); 2570 bd.textlen += bd.endspaces; 2571 } 2572 } 2573 else 2574 { 2575 curwin->w_cursor = oap->end; 2576 check_cursor_col(); 2577 2578 /* Works just like an 'i'nsert on the next character. */ 2579 if (!lineempty(curwin->w_cursor.lnum) 2580 && oap->start_vcol != oap->end_vcol) 2581 inc_cursor(); 2582 } 2583 } 2584 2585 edit(NUL, FALSE, (linenr_T)count1); 2586 2587 /* If user has moved off this line, we don't know what to do, so do 2588 * nothing. 2589 * Also don't repeat the insert when Insert mode ended with CTRL-C. */ 2590 if (curwin->w_cursor.lnum != oap->start.lnum || got_int) 2591 return; 2592 2593 if (oap->block_mode) 2594 { 2595 struct block_def bd2; 2596 2597 /* 2598 * Spaces and tabs in the indent may have changed to other spaces and 2599 * tabs. Get the starting column again and correct the length. 2600 * Don't do this when "$" used, end-of-line will have changed. 2601 */ 2602 block_prep(oap, &bd2, oap->start.lnum, TRUE); 2603 if (!bd.is_MAX || bd2.textlen < bd.textlen) 2604 { 2605 if (oap->op_type == OP_APPEND) 2606 { 2607 pre_textlen += bd2.textlen - bd.textlen; 2608 if (bd2.endspaces) 2609 --bd2.textlen; 2610 } 2611 bd.textcol = bd2.textcol; 2612 bd.textlen = bd2.textlen; 2613 } 2614 2615 /* 2616 * Subsequent calls to ml_get() flush the firstline data - take a 2617 * copy of the required string. 2618 */ 2619 firstline = ml_get(oap->start.lnum) + bd.textcol; 2620 if (oap->op_type == OP_APPEND) 2621 firstline += bd.textlen; 2622 if (pre_textlen >= 0 2623 && (ins_len = (long)STRLEN(firstline) - pre_textlen) > 0) 2624 { 2625 ins_text = vim_strnsave(firstline, (int)ins_len); 2626 if (ins_text != NULL) 2627 { 2628 /* block handled here */ 2629 if (u_save(oap->start.lnum, 2630 (linenr_T)(oap->end.lnum + 1)) == OK) 2631 block_insert(oap, ins_text, (oap->op_type == OP_INSERT), 2632 &bd); 2633 2634 curwin->w_cursor.col = oap->start.col; 2635 check_cursor(); 2636 vim_free(ins_text); 2637 } 2638 } 2639 } 2640 } 2641 #endif 2642 2643 /* 2644 * op_change - handle a change operation 2645 * 2646 * return TRUE if edit() returns because of a CTRL-O command 2647 */ 2648 int 2649 op_change(oap) 2650 oparg_T *oap; 2651 { 2652 colnr_T l; 2653 int retval; 2654 #ifdef FEAT_VISUALEXTRA 2655 long offset; 2656 linenr_T linenr; 2657 long ins_len; 2658 long pre_textlen = 0; 2659 long pre_indent = 0; 2660 char_u *firstline; 2661 char_u *ins_text, *newp, *oldp; 2662 struct block_def bd; 2663 #endif 2664 2665 l = oap->start.col; 2666 if (oap->motion_type == MLINE) 2667 { 2668 l = 0; 2669 #ifdef FEAT_SMARTINDENT 2670 if (!p_paste && curbuf->b_p_si 2671 # ifdef FEAT_CINDENT 2672 && !curbuf->b_p_cin 2673 # endif 2674 ) 2675 can_si = TRUE; /* It's like opening a new line, do si */ 2676 #endif 2677 } 2678 2679 /* First delete the text in the region. In an empty buffer only need to 2680 * save for undo */ 2681 if (curbuf->b_ml.ml_flags & ML_EMPTY) 2682 { 2683 if (u_save_cursor() == FAIL) 2684 return FALSE; 2685 } 2686 else if (op_delete(oap) == FAIL) 2687 return FALSE; 2688 2689 if ((l > curwin->w_cursor.col) && !lineempty(curwin->w_cursor.lnum) 2690 && !virtual_op) 2691 inc_cursor(); 2692 2693 #ifdef FEAT_VISUALEXTRA 2694 /* check for still on same line (<CR> in inserted text meaningless) */ 2695 /* skip blank lines too */ 2696 if (oap->block_mode) 2697 { 2698 # ifdef FEAT_VIRTUALEDIT 2699 /* Add spaces before getting the current line length. */ 2700 if (virtual_op && (curwin->w_cursor.coladd > 0 2701 || gchar_cursor() == NUL)) 2702 coladvance_force(getviscol()); 2703 # endif 2704 firstline = ml_get(oap->start.lnum); 2705 pre_textlen = (long)STRLEN(firstline); 2706 pre_indent = (long)(skipwhite(firstline) - firstline); 2707 bd.textcol = curwin->w_cursor.col; 2708 } 2709 #endif 2710 2711 #if defined(FEAT_LISP) || defined(FEAT_CINDENT) 2712 if (oap->motion_type == MLINE) 2713 fix_indent(); 2714 #endif 2715 2716 retval = edit(NUL, FALSE, (linenr_T)1); 2717 2718 #ifdef FEAT_VISUALEXTRA 2719 /* 2720 * In Visual block mode, handle copying the new text to all lines of the 2721 * block. 2722 * Don't repeat the insert when Insert mode ended with CTRL-C. 2723 */ 2724 if (oap->block_mode && oap->start.lnum != oap->end.lnum && !got_int) 2725 { 2726 /* Auto-indenting may have changed the indent. If the cursor was past 2727 * the indent, exclude that indent change from the inserted text. */ 2728 firstline = ml_get(oap->start.lnum); 2729 if (bd.textcol > (colnr_T)pre_indent) 2730 { 2731 long new_indent = (long)(skipwhite(firstline) - firstline); 2732 2733 pre_textlen += new_indent - pre_indent; 2734 bd.textcol += new_indent - pre_indent; 2735 } 2736 2737 ins_len = (long)STRLEN(firstline) - pre_textlen; 2738 if (ins_len > 0) 2739 { 2740 /* Subsequent calls to ml_get() flush the firstline data - take a 2741 * copy of the inserted text. */ 2742 if ((ins_text = alloc_check((unsigned)(ins_len + 1))) != NULL) 2743 { 2744 vim_strncpy(ins_text, firstline + bd.textcol, (size_t)ins_len); 2745 for (linenr = oap->start.lnum + 1; linenr <= oap->end.lnum; 2746 linenr++) 2747 { 2748 block_prep(oap, &bd, linenr, TRUE); 2749 if (!bd.is_short || virtual_op) 2750 { 2751 # ifdef FEAT_VIRTUALEDIT 2752 pos_T vpos; 2753 2754 /* If the block starts in virtual space, count the 2755 * initial coladd offset as part of "startspaces" */ 2756 if (bd.is_short) 2757 { 2758 vpos.lnum = linenr; 2759 (void)getvpos(&vpos, oap->start_vcol); 2760 } 2761 else 2762 vpos.coladd = 0; 2763 # endif 2764 oldp = ml_get(linenr); 2765 newp = alloc_check((unsigned)(STRLEN(oldp) 2766 # ifdef FEAT_VIRTUALEDIT 2767 + vpos.coladd 2768 # endif 2769 + ins_len + 1)); 2770 if (newp == NULL) 2771 continue; 2772 /* copy up to block start */ 2773 mch_memmove(newp, oldp, (size_t)bd.textcol); 2774 offset = bd.textcol; 2775 # ifdef FEAT_VIRTUALEDIT 2776 copy_spaces(newp + offset, (size_t)vpos.coladd); 2777 offset += vpos.coladd; 2778 # endif 2779 mch_memmove(newp + offset, ins_text, (size_t)ins_len); 2780 offset += ins_len; 2781 oldp += bd.textcol; 2782 STRMOVE(newp + offset, oldp); 2783 ml_replace(linenr, newp, FALSE); 2784 } 2785 } 2786 check_cursor(); 2787 2788 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L); 2789 } 2790 vim_free(ins_text); 2791 } 2792 } 2793 #endif 2794 2795 return retval; 2796 } 2797 2798 /* 2799 * set all the yank registers to empty (called from main()) 2800 */ 2801 void 2802 init_yank() 2803 { 2804 int i; 2805 2806 for (i = 0; i < NUM_REGISTERS; ++i) 2807 y_regs[i].y_array = NULL; 2808 } 2809 2810 #if defined(EXITFREE) || defined(PROTO) 2811 void 2812 clear_registers() 2813 { 2814 int i; 2815 2816 for (i = 0; i < NUM_REGISTERS; ++i) 2817 { 2818 y_current = &y_regs[i]; 2819 if (y_current->y_array != NULL) 2820 free_yank_all(); 2821 } 2822 } 2823 #endif 2824 2825 /* 2826 * Free "n" lines from the current yank register. 2827 * Called for normal freeing and in case of error. 2828 */ 2829 static void 2830 free_yank(n) 2831 long n; 2832 { 2833 if (y_current->y_array != NULL) 2834 { 2835 long i; 2836 2837 for (i = n; --i >= 0; ) 2838 { 2839 #ifdef AMIGA /* only for very slow machines */ 2840 if ((i & 1023) == 1023) /* this may take a while */ 2841 { 2842 /* 2843 * This message should never cause a hit-return message. 2844 * Overwrite this message with any next message. 2845 */ 2846 ++no_wait_return; 2847 smsg((char_u *)_("freeing %ld lines"), i + 1); 2848 --no_wait_return; 2849 msg_didout = FALSE; 2850 msg_col = 0; 2851 } 2852 #endif 2853 vim_free(y_current->y_array[i]); 2854 } 2855 vim_free(y_current->y_array); 2856 y_current->y_array = NULL; 2857 #ifdef AMIGA 2858 if (n >= 1000) 2859 MSG(""); 2860 #endif 2861 } 2862 } 2863 2864 static void 2865 free_yank_all() 2866 { 2867 free_yank(y_current->y_size); 2868 } 2869 2870 /* 2871 * Yank the text between "oap->start" and "oap->end" into a yank register. 2872 * If we are to append (uppercase register), we first yank into a new yank 2873 * register and then concatenate the old and the new one (so we keep the old 2874 * one in case of out-of-memory). 2875 * 2876 * return FAIL for failure, OK otherwise 2877 */ 2878 int 2879 op_yank(oap, deleting, mess) 2880 oparg_T *oap; 2881 int deleting; 2882 int mess; 2883 { 2884 long y_idx; /* index in y_array[] */ 2885 struct yankreg *curr; /* copy of y_current */ 2886 struct yankreg newreg; /* new yank register when appending */ 2887 char_u **new_ptr; 2888 linenr_T lnum; /* current line number */ 2889 long j; 2890 int yanktype = oap->motion_type; 2891 long yanklines = oap->line_count; 2892 linenr_T yankendlnum = oap->end.lnum; 2893 char_u *p; 2894 char_u *pnew; 2895 struct block_def bd; 2896 #if defined(FEAT_CLIPBOARD) && defined(FEAT_X11) 2897 int did_star = FALSE; 2898 #endif 2899 2900 /* check for read-only register */ 2901 if (oap->regname != 0 && !valid_yank_reg(oap->regname, TRUE)) 2902 { 2903 beep_flush(); 2904 return FAIL; 2905 } 2906 if (oap->regname == '_') /* black hole: nothing to do */ 2907 return OK; 2908 2909 #ifdef FEAT_CLIPBOARD 2910 if (!clip_star.available && oap->regname == '*') 2911 oap->regname = 0; 2912 else if (!clip_plus.available && oap->regname == '+') 2913 oap->regname = 0; 2914 #endif 2915 2916 if (!deleting) /* op_delete() already set y_current */ 2917 get_yank_register(oap->regname, TRUE); 2918 2919 curr = y_current; 2920 /* append to existing contents */ 2921 if (y_append && y_current->y_array != NULL) 2922 y_current = &newreg; 2923 else 2924 free_yank_all(); /* free previously yanked lines */ 2925 2926 /* 2927 * If the cursor was in column 1 before and after the movement, and the 2928 * operator is not inclusive, the yank is always linewise. 2929 */ 2930 if ( oap->motion_type == MCHAR 2931 && oap->start.col == 0 2932 && !oap->inclusive 2933 #ifdef FEAT_VISUAL 2934 && (!oap->is_VIsual || *p_sel == 'o') 2935 && !oap->block_mode 2936 #endif 2937 && oap->end.col == 0 2938 && yanklines > 1) 2939 { 2940 yanktype = MLINE; 2941 --yankendlnum; 2942 --yanklines; 2943 } 2944 2945 y_current->y_size = yanklines; 2946 y_current->y_type = yanktype; /* set the yank register type */ 2947 #ifdef FEAT_VISUAL 2948 y_current->y_width = 0; 2949 #endif 2950 y_current->y_array = (char_u **)lalloc_clear((long_u)(sizeof(char_u *) * 2951 yanklines), TRUE); 2952 2953 if (y_current->y_array == NULL) 2954 { 2955 y_current = curr; 2956 return FAIL; 2957 } 2958 2959 y_idx = 0; 2960 lnum = oap->start.lnum; 2961 2962 #ifdef FEAT_VISUAL 2963 if (oap->block_mode) 2964 { 2965 /* Visual block mode */ 2966 y_current->y_type = MBLOCK; /* set the yank register type */ 2967 y_current->y_width = oap->end_vcol - oap->start_vcol; 2968 2969 if (curwin->w_curswant == MAXCOL && y_current->y_width > 0) 2970 y_current->y_width--; 2971 } 2972 #endif 2973 2974 for ( ; lnum <= yankendlnum; lnum++, y_idx++) 2975 { 2976 switch (y_current->y_type) 2977 { 2978 #ifdef FEAT_VISUAL 2979 case MBLOCK: 2980 block_prep(oap, &bd, lnum, FALSE); 2981 if (yank_copy_line(&bd, y_idx) == FAIL) 2982 goto fail; 2983 break; 2984 #endif 2985 2986 case MLINE: 2987 if ((y_current->y_array[y_idx] = 2988 vim_strsave(ml_get(lnum))) == NULL) 2989 goto fail; 2990 break; 2991 2992 case MCHAR: 2993 { 2994 colnr_T startcol = 0, endcol = MAXCOL; 2995 #ifdef FEAT_VIRTUALEDIT 2996 int is_oneChar = FALSE; 2997 colnr_T cs, ce; 2998 #endif 2999 p = ml_get(lnum); 3000 bd.startspaces = 0; 3001 bd.endspaces = 0; 3002 3003 if (lnum == oap->start.lnum) 3004 { 3005 startcol = oap->start.col; 3006 #ifdef FEAT_VIRTUALEDIT 3007 if (virtual_op) 3008 { 3009 getvcol(curwin, &oap->start, &cs, NULL, &ce); 3010 if (ce != cs && oap->start.coladd > 0) 3011 { 3012 /* Part of a tab selected -- but don't 3013 * double-count it. */ 3014 bd.startspaces = (ce - cs + 1) 3015 - oap->start.coladd; 3016 startcol++; 3017 } 3018 } 3019 #endif 3020 } 3021 3022 if (lnum == oap->end.lnum) 3023 { 3024 endcol = oap->end.col; 3025 #ifdef FEAT_VIRTUALEDIT 3026 if (virtual_op) 3027 { 3028 getvcol(curwin, &oap->end, &cs, NULL, &ce); 3029 if (p[endcol] == NUL || (cs + oap->end.coladd < ce 3030 # ifdef FEAT_MBYTE 3031 /* Don't add space for double-wide 3032 * char; endcol will be on last byte 3033 * of multi-byte char. */ 3034 && (*mb_head_off)(p, p + endcol) == 0 3035 # endif 3036 )) 3037 { 3038 if (oap->start.lnum == oap->end.lnum 3039 && oap->start.col == oap->end.col) 3040 { 3041 /* Special case: inside a single char */ 3042 is_oneChar = TRUE; 3043 bd.startspaces = oap->end.coladd 3044 - oap->start.coladd + oap->inclusive; 3045 endcol = startcol; 3046 } 3047 else 3048 { 3049 bd.endspaces = oap->end.coladd 3050 + oap->inclusive; 3051 endcol -= oap->inclusive; 3052 } 3053 } 3054 } 3055 #endif 3056 } 3057 if (endcol == MAXCOL) 3058 endcol = (colnr_T)STRLEN(p); 3059 if (startcol > endcol 3060 #ifdef FEAT_VIRTUALEDIT 3061 || is_oneChar 3062 #endif 3063 ) 3064 bd.textlen = 0; 3065 else 3066 { 3067 bd.textlen = endcol - startcol + oap->inclusive; 3068 } 3069 bd.textstart = p + startcol; 3070 if (yank_copy_line(&bd, y_idx) == FAIL) 3071 goto fail; 3072 break; 3073 } 3074 /* NOTREACHED */ 3075 } 3076 } 3077 3078 if (curr != y_current) /* append the new block to the old block */ 3079 { 3080 new_ptr = (char_u **)lalloc((long_u)(sizeof(char_u *) * 3081 (curr->y_size + y_current->y_size)), TRUE); 3082 if (new_ptr == NULL) 3083 goto fail; 3084 for (j = 0; j < curr->y_size; ++j) 3085 new_ptr[j] = curr->y_array[j]; 3086 vim_free(curr->y_array); 3087 curr->y_array = new_ptr; 3088 3089 if (yanktype == MLINE) /* MLINE overrides MCHAR and MBLOCK */ 3090 curr->y_type = MLINE; 3091 3092 /* Concatenate the last line of the old block with the first line of 3093 * the new block, unless being Vi compatible. */ 3094 if (curr->y_type == MCHAR && vim_strchr(p_cpo, CPO_REGAPPEND) == NULL) 3095 { 3096 pnew = lalloc((long_u)(STRLEN(curr->y_array[curr->y_size - 1]) 3097 + STRLEN(y_current->y_array[0]) + 1), TRUE); 3098 if (pnew == NULL) 3099 { 3100 y_idx = y_current->y_size - 1; 3101 goto fail; 3102 } 3103 STRCPY(pnew, curr->y_array[--j]); 3104 STRCAT(pnew, y_current->y_array[0]); 3105 vim_free(curr->y_array[j]); 3106 vim_free(y_current->y_array[0]); 3107 curr->y_array[j++] = pnew; 3108 y_idx = 1; 3109 } 3110 else 3111 y_idx = 0; 3112 while (y_idx < y_current->y_size) 3113 curr->y_array[j++] = y_current->y_array[y_idx++]; 3114 curr->y_size = j; 3115 vim_free(y_current->y_array); 3116 y_current = curr; 3117 } 3118 if (mess) /* Display message about yank? */ 3119 { 3120 if (yanktype == MCHAR 3121 #ifdef FEAT_VISUAL 3122 && !oap->block_mode 3123 #endif 3124 && yanklines == 1) 3125 yanklines = 0; 3126 /* Some versions of Vi use ">=" here, some don't... */ 3127 if (yanklines > p_report) 3128 { 3129 /* redisplay now, so message is not deleted */ 3130 update_topline_redraw(); 3131 if (yanklines == 1) 3132 { 3133 #ifdef FEAT_VISUAL 3134 if (oap->block_mode) 3135 MSG(_("block of 1 line yanked")); 3136 else 3137 #endif 3138 MSG(_("1 line yanked")); 3139 } 3140 #ifdef FEAT_VISUAL 3141 else if (oap->block_mode) 3142 smsg((char_u *)_("block of %ld lines yanked"), yanklines); 3143 #endif 3144 else 3145 smsg((char_u *)_("%ld lines yanked"), yanklines); 3146 } 3147 } 3148 3149 /* 3150 * Set "'[" and "']" marks. 3151 */ 3152 curbuf->b_op_start = oap->start; 3153 curbuf->b_op_end = oap->end; 3154 if (yanktype == MLINE 3155 #ifdef FEAT_VISUAL 3156 && !oap->block_mode 3157 #endif 3158 ) 3159 { 3160 curbuf->b_op_start.col = 0; 3161 curbuf->b_op_end.col = MAXCOL; 3162 } 3163 3164 #ifdef FEAT_CLIPBOARD 3165 /* 3166 * If we were yanking to the '*' register, send result to clipboard. 3167 * If no register was specified, and "unnamed" in 'clipboard', make a copy 3168 * to the '*' register. 3169 */ 3170 if (clip_star.available 3171 && (curr == &(y_regs[STAR_REGISTER]) 3172 || (!deleting && oap->regname == 0 3173 && (clip_unnamed & CLIP_UNNAMED)))) 3174 { 3175 if (curr != &(y_regs[STAR_REGISTER])) 3176 /* Copy the text from register 0 to the clipboard register. */ 3177 copy_yank_reg(&(y_regs[STAR_REGISTER])); 3178 3179 clip_own_selection(&clip_star); 3180 clip_gen_set_selection(&clip_star); 3181 # ifdef FEAT_X11 3182 did_star = TRUE; 3183 # endif 3184 } 3185 3186 # ifdef FEAT_X11 3187 /* 3188 * If we were yanking to the '+' register, send result to selection. 3189 * Also copy to the '*' register, in case auto-select is off. 3190 */ 3191 if (clip_plus.available 3192 && (curr == &(y_regs[PLUS_REGISTER]) 3193 || (!deleting && oap->regname == 0 3194 && (clip_unnamed & CLIP_UNNAMED_PLUS)))) 3195 { 3196 if (curr != &(y_regs[PLUS_REGISTER])) 3197 /* Copy the text from register 0 to the clipboard register. */ 3198 copy_yank_reg(&(y_regs[PLUS_REGISTER])); 3199 3200 clip_own_selection(&clip_plus); 3201 clip_gen_set_selection(&clip_plus); 3202 if (!clip_isautosel_star() && !did_star 3203 && curr == &(y_regs[PLUS_REGISTER])) 3204 { 3205 copy_yank_reg(&(y_regs[STAR_REGISTER])); 3206 clip_own_selection(&clip_star); 3207 clip_gen_set_selection(&clip_star); 3208 } 3209 } 3210 # endif 3211 #endif 3212 3213 return OK; 3214 3215 fail: /* free the allocated lines */ 3216 free_yank(y_idx + 1); 3217 y_current = curr; 3218 return FAIL; 3219 } 3220 3221 static int 3222 yank_copy_line(bd, y_idx) 3223 struct block_def *bd; 3224 long y_idx; 3225 { 3226 char_u *pnew; 3227 3228 if ((pnew = alloc(bd->startspaces + bd->endspaces + bd->textlen + 1)) 3229 == NULL) 3230 return FAIL; 3231 y_current->y_array[y_idx] = pnew; 3232 copy_spaces(pnew, (size_t)bd->startspaces); 3233 pnew += bd->startspaces; 3234 mch_memmove(pnew, bd->textstart, (size_t)bd->textlen); 3235 pnew += bd->textlen; 3236 copy_spaces(pnew, (size_t)bd->endspaces); 3237 pnew += bd->endspaces; 3238 *pnew = NUL; 3239 return OK; 3240 } 3241 3242 #ifdef FEAT_CLIPBOARD 3243 /* 3244 * Make a copy of the y_current register to register "reg". 3245 */ 3246 static void 3247 copy_yank_reg(reg) 3248 struct yankreg *reg; 3249 { 3250 struct yankreg *curr = y_current; 3251 long j; 3252 3253 y_current = reg; 3254 free_yank_all(); 3255 *y_current = *curr; 3256 y_current->y_array = (char_u **)lalloc_clear( 3257 (long_u)(sizeof(char_u *) * y_current->y_size), TRUE); 3258 if (y_current->y_array == NULL) 3259 y_current->y_size = 0; 3260 else 3261 for (j = 0; j < y_current->y_size; ++j) 3262 if ((y_current->y_array[j] = vim_strsave(curr->y_array[j])) == NULL) 3263 { 3264 free_yank(j); 3265 y_current->y_size = 0; 3266 break; 3267 } 3268 y_current = curr; 3269 } 3270 #endif 3271 3272 /* 3273 * Put contents of register "regname" into the text. 3274 * Caller must check "regname" to be valid! 3275 * "flags": PUT_FIXINDENT make indent look nice 3276 * PUT_CURSEND leave cursor after end of new text 3277 * PUT_LINE force linewise put (":put") 3278 */ 3279 void 3280 do_put(regname, dir, count, flags) 3281 int regname; 3282 int dir; /* BACKWARD for 'P', FORWARD for 'p' */ 3283 long count; 3284 int flags; 3285 { 3286 char_u *ptr; 3287 char_u *newp, *oldp; 3288 int yanklen; 3289 int totlen = 0; /* init for gcc */ 3290 linenr_T lnum; 3291 colnr_T col; 3292 long i; /* index in y_array[] */ 3293 int y_type; 3294 long y_size; 3295 #ifdef FEAT_VISUAL 3296 int oldlen; 3297 long y_width = 0; 3298 colnr_T vcol; 3299 int delcount; 3300 int incr = 0; 3301 long j; 3302 struct block_def bd; 3303 #endif 3304 char_u **y_array = NULL; 3305 long nr_lines = 0; 3306 pos_T new_cursor; 3307 int indent; 3308 int orig_indent = 0; /* init for gcc */ 3309 int indent_diff = 0; /* init for gcc */ 3310 int first_indent = TRUE; 3311 int lendiff = 0; 3312 pos_T old_pos; 3313 char_u *insert_string = NULL; 3314 int allocated = FALSE; 3315 long cnt; 3316 3317 #ifdef FEAT_CLIPBOARD 3318 /* Adjust register name for "unnamed" in 'clipboard'. */ 3319 adjust_clip_reg(®name); 3320 (void)may_get_selection(regname); 3321 #endif 3322 3323 if (flags & PUT_FIXINDENT) 3324 orig_indent = get_indent(); 3325 3326 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */ 3327 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */ 3328 3329 /* 3330 * Using inserted text works differently, because the register includes 3331 * special characters (newlines, etc.). 3332 */ 3333 if (regname == '.') 3334 { 3335 (void)stuff_inserted((dir == FORWARD ? (count == -1 ? 'o' : 'a') : 3336 (count == -1 ? 'O' : 'i')), count, FALSE); 3337 /* Putting the text is done later, so can't really move the cursor to 3338 * the next character. Use "l" to simulate it. */ 3339 if ((flags & PUT_CURSEND) && gchar_cursor() != NUL) 3340 stuffcharReadbuff('l'); 3341 return; 3342 } 3343 3344 /* 3345 * For special registers '%' (file name), '#' (alternate file name) and 3346 * ':' (last command line), etc. we have to create a fake yank register. 3347 */ 3348 if (get_spec_reg(regname, &insert_string, &allocated, TRUE)) 3349 { 3350 if (insert_string == NULL) 3351 return; 3352 } 3353 3354 #ifdef FEAT_AUTOCMD 3355 /* Autocommands may be executed when saving lines for undo, which may make 3356 * y_array invalid. Start undo now to avoid that. */ 3357 u_save(curwin->w_cursor.lnum, curwin->w_cursor.lnum + 1); 3358 #endif 3359 3360 if (insert_string != NULL) 3361 { 3362 y_type = MCHAR; 3363 #ifdef FEAT_EVAL 3364 if (regname == '=') 3365 { 3366 /* For the = register we need to split the string at NL 3367 * characters. 3368 * Loop twice: count the number of lines and save them. */ 3369 for (;;) 3370 { 3371 y_size = 0; 3372 ptr = insert_string; 3373 while (ptr != NULL) 3374 { 3375 if (y_array != NULL) 3376 y_array[y_size] = ptr; 3377 ++y_size; 3378 ptr = vim_strchr(ptr, '\n'); 3379 if (ptr != NULL) 3380 { 3381 if (y_array != NULL) 3382 *ptr = NUL; 3383 ++ptr; 3384 /* A trailing '\n' makes the register linewise. */ 3385 if (*ptr == NUL) 3386 { 3387 y_type = MLINE; 3388 break; 3389 } 3390 } 3391 } 3392 if (y_array != NULL) 3393 break; 3394 y_array = (char_u **)alloc((unsigned) 3395 (y_size * sizeof(char_u *))); 3396 if (y_array == NULL) 3397 goto end; 3398 } 3399 } 3400 else 3401 #endif 3402 { 3403 y_size = 1; /* use fake one-line yank register */ 3404 y_array = &insert_string; 3405 } 3406 } 3407 else 3408 { 3409 get_yank_register(regname, FALSE); 3410 3411 y_type = y_current->y_type; 3412 #ifdef FEAT_VISUAL 3413 y_width = y_current->y_width; 3414 #endif 3415 y_size = y_current->y_size; 3416 y_array = y_current->y_array; 3417 } 3418 3419 #ifdef FEAT_VISUAL 3420 if (y_type == MLINE) 3421 { 3422 if (flags & PUT_LINE_SPLIT) 3423 { 3424 /* "p" or "P" in Visual mode: split the lines to put the text in 3425 * between. */ 3426 if (u_save_cursor() == FAIL) 3427 goto end; 3428 ptr = vim_strsave(ml_get_cursor()); 3429 if (ptr == NULL) 3430 goto end; 3431 ml_append(curwin->w_cursor.lnum, ptr, (colnr_T)0, FALSE); 3432 vim_free(ptr); 3433 3434 ptr = vim_strnsave(ml_get_curline(), curwin->w_cursor.col); 3435 if (ptr == NULL) 3436 goto end; 3437 ml_replace(curwin->w_cursor.lnum, ptr, FALSE); 3438 ++nr_lines; 3439 dir = FORWARD; 3440 } 3441 if (flags & PUT_LINE_FORWARD) 3442 { 3443 /* Must be "p" for a Visual block, put lines below the block. */ 3444 curwin->w_cursor = curbuf->b_visual.vi_end; 3445 dir = FORWARD; 3446 } 3447 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */ 3448 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */ 3449 } 3450 #endif 3451 3452 if (flags & PUT_LINE) /* :put command or "p" in Visual line mode. */ 3453 y_type = MLINE; 3454 3455 if (y_size == 0 || y_array == NULL) 3456 { 3457 EMSG2(_("E353: Nothing in register %s"), 3458 regname == 0 ? (char_u *)"\"" : transchar(regname)); 3459 goto end; 3460 } 3461 3462 #ifdef FEAT_VISUAL 3463 if (y_type == MBLOCK) 3464 { 3465 lnum = curwin->w_cursor.lnum + y_size + 1; 3466 if (lnum > curbuf->b_ml.ml_line_count) 3467 lnum = curbuf->b_ml.ml_line_count + 1; 3468 if (u_save(curwin->w_cursor.lnum - 1, lnum) == FAIL) 3469 goto end; 3470 } 3471 else 3472 #endif 3473 if (y_type == MLINE) 3474 { 3475 lnum = curwin->w_cursor.lnum; 3476 #ifdef FEAT_FOLDING 3477 /* Correct line number for closed fold. Don't move the cursor yet, 3478 * u_save() uses it. */ 3479 if (dir == BACKWARD) 3480 (void)hasFolding(lnum, &lnum, NULL); 3481 else 3482 (void)hasFolding(lnum, NULL, &lnum); 3483 #endif 3484 if (dir == FORWARD) 3485 ++lnum; 3486 if (u_save(lnum - 1, lnum) == FAIL) 3487 goto end; 3488 #ifdef FEAT_FOLDING 3489 if (dir == FORWARD) 3490 curwin->w_cursor.lnum = lnum - 1; 3491 else 3492 curwin->w_cursor.lnum = lnum; 3493 curbuf->b_op_start = curwin->w_cursor; /* for mark_adjust() */ 3494 #endif 3495 } 3496 else if (u_save_cursor() == FAIL) 3497 goto end; 3498 3499 yanklen = (int)STRLEN(y_array[0]); 3500 3501 #ifdef FEAT_VIRTUALEDIT 3502 if (ve_flags == VE_ALL && y_type == MCHAR) 3503 { 3504 if (gchar_cursor() == TAB) 3505 { 3506 /* Don't need to insert spaces when "p" on the last position of a 3507 * tab or "P" on the first position. */ 3508 if (dir == FORWARD 3509 ? (int)curwin->w_cursor.coladd < curbuf->b_p_ts - 1 3510 : curwin->w_cursor.coladd > 0) 3511 coladvance_force(getviscol()); 3512 else 3513 curwin->w_cursor.coladd = 0; 3514 } 3515 else if (curwin->w_cursor.coladd > 0 || gchar_cursor() == NUL) 3516 coladvance_force(getviscol() + (dir == FORWARD)); 3517 } 3518 #endif 3519 3520 lnum = curwin->w_cursor.lnum; 3521 col = curwin->w_cursor.col; 3522 3523 #ifdef FEAT_VISUAL 3524 /* 3525 * Block mode 3526 */ 3527 if (y_type == MBLOCK) 3528 { 3529 char c = gchar_cursor(); 3530 colnr_T endcol2 = 0; 3531 3532 if (dir == FORWARD && c != NUL) 3533 { 3534 #ifdef FEAT_VIRTUALEDIT 3535 if (ve_flags == VE_ALL) 3536 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2); 3537 else 3538 #endif 3539 getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col); 3540 3541 #ifdef FEAT_MBYTE 3542 if (has_mbyte) 3543 /* move to start of next multi-byte character */ 3544 curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor()); 3545 else 3546 #endif 3547 #ifdef FEAT_VIRTUALEDIT 3548 if (c != TAB || ve_flags != VE_ALL) 3549 #endif 3550 ++curwin->w_cursor.col; 3551 ++col; 3552 } 3553 else 3554 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2); 3555 3556 #ifdef FEAT_VIRTUALEDIT 3557 col += curwin->w_cursor.coladd; 3558 if (ve_flags == VE_ALL 3559 && (curwin->w_cursor.coladd > 0 3560 || endcol2 == curwin->w_cursor.col)) 3561 { 3562 if (dir == FORWARD && c == NUL) 3563 ++col; 3564 if (dir != FORWARD && c != NUL) 3565 ++curwin->w_cursor.col; 3566 if (c == TAB) 3567 { 3568 if (dir == BACKWARD && curwin->w_cursor.col) 3569 curwin->w_cursor.col--; 3570 if (dir == FORWARD && col - 1 == endcol2) 3571 curwin->w_cursor.col++; 3572 } 3573 } 3574 curwin->w_cursor.coladd = 0; 3575 #endif 3576 bd.textcol = 0; 3577 for (i = 0; i < y_size; ++i) 3578 { 3579 int spaces; 3580 char shortline; 3581 3582 bd.startspaces = 0; 3583 bd.endspaces = 0; 3584 vcol = 0; 3585 delcount = 0; 3586 3587 /* add a new line */ 3588 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) 3589 { 3590 if (ml_append(curbuf->b_ml.ml_line_count, (char_u *)"", 3591 (colnr_T)1, FALSE) == FAIL) 3592 break; 3593 ++nr_lines; 3594 } 3595 /* get the old line and advance to the position to insert at */ 3596 oldp = ml_get_curline(); 3597 oldlen = (int)STRLEN(oldp); 3598 for (ptr = oldp; vcol < col && *ptr; ) 3599 { 3600 /* Count a tab for what it's worth (if list mode not on) */ 3601 incr = lbr_chartabsize_adv(&ptr, (colnr_T)vcol); 3602 vcol += incr; 3603 } 3604 bd.textcol = (colnr_T)(ptr - oldp); 3605 3606 shortline = (vcol < col) || (vcol == col && !*ptr) ; 3607 3608 if (vcol < col) /* line too short, padd with spaces */ 3609 bd.startspaces = col - vcol; 3610 else if (vcol > col) 3611 { 3612 bd.endspaces = vcol - col; 3613 bd.startspaces = incr - bd.endspaces; 3614 --bd.textcol; 3615 delcount = 1; 3616 #ifdef FEAT_MBYTE 3617 if (has_mbyte) 3618 bd.textcol -= (*mb_head_off)(oldp, oldp + bd.textcol); 3619 #endif 3620 if (oldp[bd.textcol] != TAB) 3621 { 3622 /* Only a Tab can be split into spaces. Other 3623 * characters will have to be moved to after the 3624 * block, causing misalignment. */ 3625 delcount = 0; 3626 bd.endspaces = 0; 3627 } 3628 } 3629 3630 yanklen = (int)STRLEN(y_array[i]); 3631 3632 /* calculate number of spaces required to fill right side of block*/ 3633 spaces = y_width + 1; 3634 for (j = 0; j < yanklen; j++) 3635 spaces -= lbr_chartabsize(&y_array[i][j], 0); 3636 if (spaces < 0) 3637 spaces = 0; 3638 3639 /* insert the new text */ 3640 totlen = count * (yanklen + spaces) + bd.startspaces + bd.endspaces; 3641 newp = alloc_check((unsigned)totlen + oldlen + 1); 3642 if (newp == NULL) 3643 break; 3644 /* copy part up to cursor to new line */ 3645 ptr = newp; 3646 mch_memmove(ptr, oldp, (size_t)bd.textcol); 3647 ptr += bd.textcol; 3648 /* may insert some spaces before the new text */ 3649 copy_spaces(ptr, (size_t)bd.startspaces); 3650 ptr += bd.startspaces; 3651 /* insert the new text */ 3652 for (j = 0; j < count; ++j) 3653 { 3654 mch_memmove(ptr, y_array[i], (size_t)yanklen); 3655 ptr += yanklen; 3656 3657 /* insert block's trailing spaces only if there's text behind */ 3658 if ((j < count - 1 || !shortline) && spaces) 3659 { 3660 copy_spaces(ptr, (size_t)spaces); 3661 ptr += spaces; 3662 } 3663 } 3664 /* may insert some spaces after the new text */ 3665 copy_spaces(ptr, (size_t)bd.endspaces); 3666 ptr += bd.endspaces; 3667 /* move the text after the cursor to the end of the line. */ 3668 mch_memmove(ptr, oldp + bd.textcol + delcount, 3669 (size_t)(oldlen - bd.textcol - delcount + 1)); 3670 ml_replace(curwin->w_cursor.lnum, newp, FALSE); 3671 3672 ++curwin->w_cursor.lnum; 3673 if (i == 0) 3674 curwin->w_cursor.col += bd.startspaces; 3675 } 3676 3677 changed_lines(lnum, 0, curwin->w_cursor.lnum, nr_lines); 3678 3679 /* Set '[ mark. */ 3680 curbuf->b_op_start = curwin->w_cursor; 3681 curbuf->b_op_start.lnum = lnum; 3682 3683 /* adjust '] mark */ 3684 curbuf->b_op_end.lnum = curwin->w_cursor.lnum - 1; 3685 curbuf->b_op_end.col = bd.textcol + totlen - 1; 3686 # ifdef FEAT_VIRTUALEDIT 3687 curbuf->b_op_end.coladd = 0; 3688 # endif 3689 if (flags & PUT_CURSEND) 3690 { 3691 colnr_T len; 3692 3693 curwin->w_cursor = curbuf->b_op_end; 3694 curwin->w_cursor.col++; 3695 3696 /* in Insert mode we might be after the NUL, correct for that */ 3697 len = (colnr_T)STRLEN(ml_get_curline()); 3698 if (curwin->w_cursor.col > len) 3699 curwin->w_cursor.col = len; 3700 } 3701 else 3702 curwin->w_cursor.lnum = lnum; 3703 } 3704 else 3705 #endif 3706 { 3707 /* 3708 * Character or Line mode 3709 */ 3710 if (y_type == MCHAR) 3711 { 3712 /* if type is MCHAR, FORWARD is the same as BACKWARD on the next 3713 * char */ 3714 if (dir == FORWARD && gchar_cursor() != NUL) 3715 { 3716 #ifdef FEAT_MBYTE 3717 if (has_mbyte) 3718 { 3719 int bytelen = (*mb_ptr2len)(ml_get_cursor()); 3720 3721 /* put it on the next of the multi-byte character. */ 3722 col += bytelen; 3723 if (yanklen) 3724 { 3725 curwin->w_cursor.col += bytelen; 3726 curbuf->b_op_end.col += bytelen; 3727 } 3728 } 3729 else 3730 #endif 3731 { 3732 ++col; 3733 if (yanklen) 3734 { 3735 ++curwin->w_cursor.col; 3736 ++curbuf->b_op_end.col; 3737 } 3738 } 3739 } 3740 curbuf->b_op_start = curwin->w_cursor; 3741 } 3742 /* 3743 * Line mode: BACKWARD is the same as FORWARD on the previous line 3744 */ 3745 else if (dir == BACKWARD) 3746 --lnum; 3747 new_cursor = curwin->w_cursor; 3748 3749 /* 3750 * simple case: insert into current line 3751 */ 3752 if (y_type == MCHAR && y_size == 1) 3753 { 3754 totlen = count * yanklen; 3755 if (totlen) 3756 { 3757 oldp = ml_get(lnum); 3758 newp = alloc_check((unsigned)(STRLEN(oldp) + totlen + 1)); 3759 if (newp == NULL) 3760 goto end; /* alloc() will give error message */ 3761 mch_memmove(newp, oldp, (size_t)col); 3762 ptr = newp + col; 3763 for (i = 0; i < count; ++i) 3764 { 3765 mch_memmove(ptr, y_array[0], (size_t)yanklen); 3766 ptr += yanklen; 3767 } 3768 STRMOVE(ptr, oldp + col); 3769 ml_replace(lnum, newp, FALSE); 3770 /* Put cursor on last putted char. */ 3771 curwin->w_cursor.col += (colnr_T)(totlen - 1); 3772 } 3773 curbuf->b_op_end = curwin->w_cursor; 3774 /* For "CTRL-O p" in Insert mode, put cursor after last char */ 3775 if (totlen && (restart_edit != 0 || (flags & PUT_CURSEND))) 3776 ++curwin->w_cursor.col; 3777 changed_bytes(lnum, col); 3778 } 3779 else 3780 { 3781 /* 3782 * Insert at least one line. When y_type is MCHAR, break the first 3783 * line in two. 3784 */ 3785 for (cnt = 1; cnt <= count; ++cnt) 3786 { 3787 i = 0; 3788 if (y_type == MCHAR) 3789 { 3790 /* 3791 * Split the current line in two at the insert position. 3792 * First insert y_array[size - 1] in front of second line. 3793 * Then append y_array[0] to first line. 3794 */ 3795 lnum = new_cursor.lnum; 3796 ptr = ml_get(lnum) + col; 3797 totlen = (int)STRLEN(y_array[y_size - 1]); 3798 newp = alloc_check((unsigned)(STRLEN(ptr) + totlen + 1)); 3799 if (newp == NULL) 3800 goto error; 3801 STRCPY(newp, y_array[y_size - 1]); 3802 STRCAT(newp, ptr); 3803 /* insert second line */ 3804 ml_append(lnum, newp, (colnr_T)0, FALSE); 3805 vim_free(newp); 3806 3807 oldp = ml_get(lnum); 3808 newp = alloc_check((unsigned)(col + yanklen + 1)); 3809 if (newp == NULL) 3810 goto error; 3811 /* copy first part of line */ 3812 mch_memmove(newp, oldp, (size_t)col); 3813 /* append to first line */ 3814 mch_memmove(newp + col, y_array[0], (size_t)(yanklen + 1)); 3815 ml_replace(lnum, newp, FALSE); 3816 3817 curwin->w_cursor.lnum = lnum; 3818 i = 1; 3819 } 3820 3821 for (; i < y_size; ++i) 3822 { 3823 if ((y_type != MCHAR || i < y_size - 1) 3824 && ml_append(lnum, y_array[i], (colnr_T)0, FALSE) 3825 == FAIL) 3826 goto error; 3827 lnum++; 3828 ++nr_lines; 3829 if (flags & PUT_FIXINDENT) 3830 { 3831 old_pos = curwin->w_cursor; 3832 curwin->w_cursor.lnum = lnum; 3833 ptr = ml_get(lnum); 3834 if (cnt == count && i == y_size - 1) 3835 lendiff = (int)STRLEN(ptr); 3836 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT) 3837 if (*ptr == '#' && preprocs_left()) 3838 indent = 0; /* Leave # lines at start */ 3839 else 3840 #endif 3841 if (*ptr == NUL) 3842 indent = 0; /* Ignore empty lines */ 3843 else if (first_indent) 3844 { 3845 indent_diff = orig_indent - get_indent(); 3846 indent = orig_indent; 3847 first_indent = FALSE; 3848 } 3849 else if ((indent = get_indent() + indent_diff) < 0) 3850 indent = 0; 3851 (void)set_indent(indent, 0); 3852 curwin->w_cursor = old_pos; 3853 /* remember how many chars were removed */ 3854 if (cnt == count && i == y_size - 1) 3855 lendiff -= (int)STRLEN(ml_get(lnum)); 3856 } 3857 } 3858 } 3859 3860 error: 3861 /* Adjust marks. */ 3862 if (y_type == MLINE) 3863 { 3864 curbuf->b_op_start.col = 0; 3865 if (dir == FORWARD) 3866 curbuf->b_op_start.lnum++; 3867 } 3868 mark_adjust(curbuf->b_op_start.lnum + (y_type == MCHAR), 3869 (linenr_T)MAXLNUM, nr_lines, 0L); 3870 3871 /* note changed text for displaying and folding */ 3872 if (y_type == MCHAR) 3873 changed_lines(curwin->w_cursor.lnum, col, 3874 curwin->w_cursor.lnum + 1, nr_lines); 3875 else 3876 changed_lines(curbuf->b_op_start.lnum, 0, 3877 curbuf->b_op_start.lnum, nr_lines); 3878 3879 /* put '] mark at last inserted character */ 3880 curbuf->b_op_end.lnum = lnum; 3881 /* correct length for change in indent */ 3882 col = (colnr_T)STRLEN(y_array[y_size - 1]) - lendiff; 3883 if (col > 1) 3884 curbuf->b_op_end.col = col - 1; 3885 else 3886 curbuf->b_op_end.col = 0; 3887 3888 if (flags & PUT_CURSLINE) 3889 { 3890 /* ":put": put cursor on last inserted line */ 3891 curwin->w_cursor.lnum = lnum; 3892 beginline(BL_WHITE | BL_FIX); 3893 } 3894 else if (flags & PUT_CURSEND) 3895 { 3896 /* put cursor after inserted text */ 3897 if (y_type == MLINE) 3898 { 3899 if (lnum >= curbuf->b_ml.ml_line_count) 3900 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; 3901 else 3902 curwin->w_cursor.lnum = lnum + 1; 3903 curwin->w_cursor.col = 0; 3904 } 3905 else 3906 { 3907 curwin->w_cursor.lnum = lnum; 3908 curwin->w_cursor.col = col; 3909 } 3910 } 3911 else if (y_type == MLINE) 3912 { 3913 /* put cursor on first non-blank in first inserted line */ 3914 curwin->w_cursor.col = 0; 3915 if (dir == FORWARD) 3916 ++curwin->w_cursor.lnum; 3917 beginline(BL_WHITE | BL_FIX); 3918 } 3919 else /* put cursor on first inserted character */ 3920 curwin->w_cursor = new_cursor; 3921 } 3922 } 3923 3924 msgmore(nr_lines); 3925 curwin->w_set_curswant = TRUE; 3926 3927 end: 3928 if (allocated) 3929 vim_free(insert_string); 3930 if (regname == '=') 3931 vim_free(y_array); 3932 3933 /* If the cursor is past the end of the line put it at the end. */ 3934 adjust_cursor_eol(); 3935 } 3936 3937 /* 3938 * When the cursor is on the NUL past the end of the line and it should not be 3939 * there move it left. 3940 */ 3941 void 3942 adjust_cursor_eol() 3943 { 3944 if (curwin->w_cursor.col > 0 3945 && gchar_cursor() == NUL 3946 #ifdef FEAT_VIRTUALEDIT 3947 && (ve_flags & VE_ONEMORE) == 0 3948 #endif 3949 && !(restart_edit || (State & INSERT))) 3950 { 3951 /* Put the cursor on the last character in the line. */ 3952 dec_cursor(); 3953 3954 #ifdef FEAT_VIRTUALEDIT 3955 if (ve_flags == VE_ALL) 3956 { 3957 colnr_T scol, ecol; 3958 3959 /* Coladd is set to the width of the last character. */ 3960 getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol); 3961 curwin->w_cursor.coladd = ecol - scol + 1; 3962 } 3963 #endif 3964 } 3965 } 3966 3967 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT) || defined(PROTO) 3968 /* 3969 * Return TRUE if lines starting with '#' should be left aligned. 3970 */ 3971 int 3972 preprocs_left() 3973 { 3974 return 3975 # ifdef FEAT_SMARTINDENT 3976 # ifdef FEAT_CINDENT 3977 (curbuf->b_p_si && !curbuf->b_p_cin) || 3978 # else 3979 curbuf->b_p_si 3980 # endif 3981 # endif 3982 # ifdef FEAT_CINDENT 3983 (curbuf->b_p_cin && in_cinkeys('#', ' ', TRUE)) 3984 # endif 3985 ; 3986 } 3987 #endif 3988 3989 /* Return the character name of the register with the given number */ 3990 int 3991 get_register_name(num) 3992 int num; 3993 { 3994 if (num == -1) 3995 return '"'; 3996 else if (num < 10) 3997 return num + '0'; 3998 else if (num == DELETION_REGISTER) 3999 return '-'; 4000 #ifdef FEAT_CLIPBOARD 4001 else if (num == STAR_REGISTER) 4002 return '*'; 4003 else if (num == PLUS_REGISTER) 4004 return '+'; 4005 #endif 4006 else 4007 { 4008 #ifdef EBCDIC 4009 int i; 4010 4011 /* EBCDIC is really braindead ... */ 4012 i = 'a' + (num - 10); 4013 if (i > 'i') 4014 i += 7; 4015 if (i > 'r') 4016 i += 8; 4017 return i; 4018 #else 4019 return num + 'a' - 10; 4020 #endif 4021 } 4022 } 4023 4024 /* 4025 * ":dis" and ":registers": Display the contents of the yank registers. 4026 */ 4027 void 4028 ex_display(eap) 4029 exarg_T *eap; 4030 { 4031 int i, n; 4032 long j; 4033 char_u *p; 4034 struct yankreg *yb; 4035 int name; 4036 int attr; 4037 char_u *arg = eap->arg; 4038 #ifdef FEAT_MBYTE 4039 int clen; 4040 #else 4041 # define clen 1 4042 #endif 4043 4044 if (arg != NULL && *arg == NUL) 4045 arg = NULL; 4046 attr = hl_attr(HLF_8); 4047 4048 /* Highlight title */ 4049 MSG_PUTS_TITLE(_("\n--- Registers ---")); 4050 for (i = -1; i < NUM_REGISTERS && !got_int; ++i) 4051 { 4052 name = get_register_name(i); 4053 if (arg != NULL && vim_strchr(arg, name) == NULL 4054 #ifdef ONE_CLIPBOARD 4055 /* Star register and plus register contain the same thing. */ 4056 && (name != '*' || vim_strchr(arg, '+') == NULL) 4057 #endif 4058 ) 4059 continue; /* did not ask for this register */ 4060 4061 #ifdef FEAT_CLIPBOARD 4062 /* Adjust register name for "unnamed" in 'clipboard'. 4063 * When it's a clipboard register, fill it with the current contents 4064 * of the clipboard. */ 4065 adjust_clip_reg(&name); 4066 (void)may_get_selection(name); 4067 #endif 4068 4069 if (i == -1) 4070 { 4071 if (y_previous != NULL) 4072 yb = y_previous; 4073 else 4074 yb = &(y_regs[0]); 4075 } 4076 else 4077 yb = &(y_regs[i]); 4078 4079 #ifdef FEAT_EVAL 4080 if (name == MB_TOLOWER(redir_reg) 4081 || (redir_reg == '"' && yb == y_previous)) 4082 continue; /* do not list register being written to, the 4083 * pointer can be freed */ 4084 #endif 4085 4086 if (yb->y_array != NULL) 4087 { 4088 msg_putchar('\n'); 4089 msg_putchar('"'); 4090 msg_putchar(name); 4091 MSG_PUTS(" "); 4092 4093 n = (int)Columns - 6; 4094 for (j = 0; j < yb->y_size && n > 1; ++j) 4095 { 4096 if (j) 4097 { 4098 MSG_PUTS_ATTR("^J", attr); 4099 n -= 2; 4100 } 4101 for (p = yb->y_array[j]; *p && (n -= ptr2cells(p)) >= 0; ++p) 4102 { 4103 #ifdef FEAT_MBYTE 4104 clen = (*mb_ptr2len)(p); 4105 #endif 4106 msg_outtrans_len(p, clen); 4107 #ifdef FEAT_MBYTE 4108 p += clen - 1; 4109 #endif 4110 } 4111 } 4112 if (n > 1 && yb->y_type == MLINE) 4113 MSG_PUTS_ATTR("^J", attr); 4114 out_flush(); /* show one line at a time */ 4115 } 4116 ui_breakcheck(); 4117 } 4118 4119 /* 4120 * display last inserted text 4121 */ 4122 if ((p = get_last_insert()) != NULL 4123 && (arg == NULL || vim_strchr(arg, '.') != NULL) && !got_int) 4124 { 4125 MSG_PUTS("\n\". "); 4126 dis_msg(p, TRUE); 4127 } 4128 4129 /* 4130 * display last command line 4131 */ 4132 if (last_cmdline != NULL && (arg == NULL || vim_strchr(arg, ':') != NULL) 4133 && !got_int) 4134 { 4135 MSG_PUTS("\n\": "); 4136 dis_msg(last_cmdline, FALSE); 4137 } 4138 4139 /* 4140 * display current file name 4141 */ 4142 if (curbuf->b_fname != NULL 4143 && (arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int) 4144 { 4145 MSG_PUTS("\n\"% "); 4146 dis_msg(curbuf->b_fname, FALSE); 4147 } 4148 4149 /* 4150 * display alternate file name 4151 */ 4152 if ((arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int) 4153 { 4154 char_u *fname; 4155 linenr_T dummy; 4156 4157 if (buflist_name_nr(0, &fname, &dummy) != FAIL) 4158 { 4159 MSG_PUTS("\n\"# "); 4160 dis_msg(fname, FALSE); 4161 } 4162 } 4163 4164 /* 4165 * display last search pattern 4166 */ 4167 if (last_search_pat() != NULL 4168 && (arg == NULL || vim_strchr(arg, '/') != NULL) && !got_int) 4169 { 4170 MSG_PUTS("\n\"/ "); 4171 dis_msg(last_search_pat(), FALSE); 4172 } 4173 4174 #ifdef FEAT_EVAL 4175 /* 4176 * display last used expression 4177 */ 4178 if (expr_line != NULL && (arg == NULL || vim_strchr(arg, '=') != NULL) 4179 && !got_int) 4180 { 4181 MSG_PUTS("\n\"= "); 4182 dis_msg(expr_line, FALSE); 4183 } 4184 #endif 4185 } 4186 4187 /* 4188 * display a string for do_dis() 4189 * truncate at end of screen line 4190 */ 4191 static void 4192 dis_msg(p, skip_esc) 4193 char_u *p; 4194 int skip_esc; /* if TRUE, ignore trailing ESC */ 4195 { 4196 int n; 4197 #ifdef FEAT_MBYTE 4198 int l; 4199 #endif 4200 4201 n = (int)Columns - 6; 4202 while (*p != NUL 4203 && !(*p == ESC && skip_esc && *(p + 1) == NUL) 4204 && (n -= ptr2cells(p)) >= 0) 4205 { 4206 #ifdef FEAT_MBYTE 4207 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) 4208 { 4209 msg_outtrans_len(p, l); 4210 p += l; 4211 } 4212 else 4213 #endif 4214 msg_outtrans_len(p++, 1); 4215 } 4216 ui_breakcheck(); 4217 } 4218 4219 #if defined(FEAT_COMMENTS) || defined(PROTO) 4220 /* 4221 * If "process" is TRUE and the line begins with a comment leader (possibly 4222 * after some white space), return a pointer to the text after it. Put a boolean 4223 * value indicating whether the line ends with an unclosed comment in 4224 * "is_comment". 4225 * line - line to be processed, 4226 * process - if FALSE, will only check whether the line ends with an unclosed 4227 * comment, 4228 * include_space - whether to also skip space following the comment leader, 4229 * is_comment - will indicate whether the current line ends with an unclosed 4230 * comment. 4231 */ 4232 static char_u * 4233 skip_comment(line, process, include_space, is_comment) 4234 char_u *line; 4235 int process; 4236 int include_space; 4237 int *is_comment; 4238 { 4239 char_u *comment_flags = NULL; 4240 int lead_len; 4241 int leader_offset = get_last_leader_offset(line, &comment_flags); 4242 4243 *is_comment = FALSE; 4244 if (leader_offset != -1) 4245 { 4246 /* Let's check whether the line ends with an unclosed comment. 4247 * If the last comment leader has COM_END in flags, there's no comment. 4248 */ 4249 while (*comment_flags) 4250 { 4251 if (*comment_flags == COM_END 4252 || *comment_flags == ':') 4253 break; 4254 ++comment_flags; 4255 } 4256 if (*comment_flags != COM_END) 4257 *is_comment = TRUE; 4258 } 4259 4260 if (process == FALSE) 4261 return line; 4262 4263 lead_len = get_leader_len(line, &comment_flags, FALSE, include_space); 4264 4265 if (lead_len == 0) 4266 return line; 4267 4268 /* Find: 4269 * - COM_END, 4270 * - colon, 4271 * whichever comes first. 4272 */ 4273 while (*comment_flags) 4274 { 4275 if (*comment_flags == COM_END 4276 || *comment_flags == ':') 4277 { 4278 break; 4279 } 4280 ++comment_flags; 4281 } 4282 4283 /* If we found a colon, it means that we are not processing a line 4284 * starting with a closing part of a three-part comment. That's good, 4285 * because we don't want to remove those as this would be annoying. 4286 */ 4287 if (*comment_flags == ':' || *comment_flags == NUL) 4288 line += lead_len; 4289 4290 return line; 4291 } 4292 #endif 4293 4294 /* 4295 * Join 'count' lines (minimal 2) at cursor position. 4296 * When "save_undo" is TRUE save lines for undo first. 4297 * Set "use_formatoptions" to FALSE when e.g. processing 4298 * backspace and comment leaders should not be removed. 4299 * 4300 * return FAIL for failure, OK otherwise 4301 */ 4302 int 4303 do_join(count, insert_space, save_undo, use_formatoptions) 4304 long count; 4305 int insert_space; 4306 int save_undo; 4307 int use_formatoptions UNUSED; 4308 { 4309 char_u *curr = NULL; 4310 char_u *curr_start = NULL; 4311 char_u *cend; 4312 char_u *newp; 4313 char_u *spaces; /* number of spaces inserted before a line */ 4314 int endcurr1 = NUL; 4315 int endcurr2 = NUL; 4316 int currsize = 0; /* size of the current line */ 4317 int sumsize = 0; /* size of the long new line */ 4318 linenr_T t; 4319 colnr_T col = 0; 4320 int ret = OK; 4321 #if defined(FEAT_COMMENTS) || defined(PROTO) 4322 int *comments = NULL; 4323 int remove_comments = (use_formatoptions == TRUE) 4324 && has_format_option(FO_REMOVE_COMS); 4325 int prev_was_comment; 4326 #endif 4327 4328 4329 if (save_undo && u_save((linenr_T)(curwin->w_cursor.lnum - 1), 4330 (linenr_T)(curwin->w_cursor.lnum + count)) == FAIL) 4331 return FAIL; 4332 4333 /* Allocate an array to store the number of spaces inserted before each 4334 * line. We will use it to pre-compute the length of the new line and the 4335 * proper placement of each original line in the new one. */ 4336 spaces = lalloc_clear((long_u)count, TRUE); 4337 if (spaces == NULL) 4338 return FAIL; 4339 #if defined(FEAT_COMMENTS) || defined(PROTO) 4340 if (remove_comments) 4341 { 4342 comments = (int *)lalloc_clear((long_u)count * sizeof(int), TRUE); 4343 if (comments == NULL) 4344 { 4345 vim_free(spaces); 4346 return FAIL; 4347 } 4348 } 4349 #endif 4350 4351 /* 4352 * Don't move anything, just compute the final line length 4353 * and setup the array of space strings lengths 4354 */ 4355 for (t = 0; t < count; ++t) 4356 { 4357 curr = curr_start = ml_get((linenr_T)(curwin->w_cursor.lnum + t)); 4358 #if defined(FEAT_COMMENTS) || defined(PROTO) 4359 if (remove_comments) 4360 { 4361 /* We don't want to remove the comment leader if the 4362 * previous line is not a comment. */ 4363 if (t > 0 && prev_was_comment) 4364 { 4365 4366 char_u *new_curr = skip_comment(curr, TRUE, insert_space, 4367 &prev_was_comment); 4368 comments[t] = (int)(new_curr - curr); 4369 curr = new_curr; 4370 } 4371 else 4372 curr = skip_comment(curr, FALSE, insert_space, 4373 &prev_was_comment); 4374 } 4375 #endif 4376 4377 if (insert_space && t > 0) 4378 { 4379 curr = skipwhite(curr); 4380 if (*curr != ')' && currsize != 0 && endcurr1 != TAB 4381 #ifdef FEAT_MBYTE 4382 && (!has_format_option(FO_MBYTE_JOIN) 4383 || (mb_ptr2char(curr) < 0x100 && endcurr1 < 0x100)) 4384 && (!has_format_option(FO_MBYTE_JOIN2) 4385 || mb_ptr2char(curr) < 0x100 || endcurr1 < 0x100) 4386 #endif 4387 ) 4388 { 4389 /* don't add a space if the line is ending in a space */ 4390 if (endcurr1 == ' ') 4391 endcurr1 = endcurr2; 4392 else 4393 ++spaces[t]; 4394 /* extra space when 'joinspaces' set and line ends in '.' */ 4395 if ( p_js 4396 && (endcurr1 == '.' 4397 || (vim_strchr(p_cpo, CPO_JOINSP) == NULL 4398 && (endcurr1 == '?' || endcurr1 == '!')))) 4399 ++spaces[t]; 4400 } 4401 } 4402 currsize = (int)STRLEN(curr); 4403 sumsize += currsize + spaces[t]; 4404 endcurr1 = endcurr2 = NUL; 4405 if (insert_space && currsize > 0) 4406 { 4407 #ifdef FEAT_MBYTE 4408 if (has_mbyte) 4409 { 4410 cend = curr + currsize; 4411 mb_ptr_back(curr, cend); 4412 endcurr1 = (*mb_ptr2char)(cend); 4413 if (cend > curr) 4414 { 4415 mb_ptr_back(curr, cend); 4416 endcurr2 = (*mb_ptr2char)(cend); 4417 } 4418 } 4419 else 4420 #endif 4421 { 4422 endcurr1 = *(curr + currsize - 1); 4423 if (currsize > 1) 4424 endcurr2 = *(curr + currsize - 2); 4425 } 4426 } 4427 line_breakcheck(); 4428 if (got_int) 4429 { 4430 ret = FAIL; 4431 goto theend; 4432 } 4433 } 4434 4435 /* store the column position before last line */ 4436 col = sumsize - currsize - spaces[count - 1]; 4437 4438 /* allocate the space for the new line */ 4439 newp = alloc_check((unsigned)(sumsize + 1)); 4440 cend = newp + sumsize; 4441 *cend = 0; 4442 4443 /* 4444 * Move affected lines to the new long one. 4445 * 4446 * Move marks from each deleted line to the joined line, adjusting the 4447 * column. This is not Vi compatible, but Vi deletes the marks, thus that 4448 * should not really be a problem. 4449 */ 4450 for (t = count - 1; ; --t) 4451 { 4452 cend -= currsize; 4453 mch_memmove(cend, curr, (size_t)currsize); 4454 if (spaces[t] > 0) 4455 { 4456 cend -= spaces[t]; 4457 copy_spaces(cend, (size_t)(spaces[t])); 4458 } 4459 mark_col_adjust(curwin->w_cursor.lnum + t, (colnr_T)0, (linenr_T)-t, 4460 (long)(cend - newp + spaces[t] - (curr - curr_start))); 4461 if (t == 0) 4462 break; 4463 curr = curr_start = ml_get((linenr_T)(curwin->w_cursor.lnum + t - 1)); 4464 #if defined(FEAT_COMMENTS) || defined(PROTO) 4465 if (remove_comments) 4466 curr += comments[t - 1]; 4467 #endif 4468 if (insert_space && t > 1) 4469 curr = skipwhite(curr); 4470 currsize = (int)STRLEN(curr); 4471 } 4472 ml_replace(curwin->w_cursor.lnum, newp, FALSE); 4473 4474 /* Only report the change in the first line here, del_lines() will report 4475 * the deleted line. */ 4476 changed_lines(curwin->w_cursor.lnum, currsize, 4477 curwin->w_cursor.lnum + 1, 0L); 4478 4479 /* 4480 * Delete following lines. To do this we move the cursor there 4481 * briefly, and then move it back. After del_lines() the cursor may 4482 * have moved up (last line deleted), so the current lnum is kept in t. 4483 */ 4484 t = curwin->w_cursor.lnum; 4485 ++curwin->w_cursor.lnum; 4486 del_lines(count - 1, FALSE); 4487 curwin->w_cursor.lnum = t; 4488 4489 /* 4490 * Set the cursor column: 4491 * Vi compatible: use the column of the first join 4492 * vim: use the column of the last join 4493 */ 4494 curwin->w_cursor.col = 4495 (vim_strchr(p_cpo, CPO_JOINCOL) != NULL ? currsize : col); 4496 check_cursor_col(); 4497 4498 #ifdef FEAT_VIRTUALEDIT 4499 curwin->w_cursor.coladd = 0; 4500 #endif 4501 curwin->w_set_curswant = TRUE; 4502 4503 theend: 4504 vim_free(spaces); 4505 #if defined(FEAT_COMMENTS) || defined(PROTO) 4506 if (remove_comments) 4507 vim_free(comments); 4508 #endif 4509 return ret; 4510 } 4511 4512 #ifdef FEAT_COMMENTS 4513 /* 4514 * Return TRUE if the two comment leaders given are the same. "lnum" is 4515 * the first line. White-space is ignored. Note that the whole of 4516 * 'leader1' must match 'leader2_len' characters from 'leader2' -- webb 4517 */ 4518 static int 4519 same_leader(lnum, leader1_len, leader1_flags, leader2_len, leader2_flags) 4520 linenr_T lnum; 4521 int leader1_len; 4522 char_u *leader1_flags; 4523 int leader2_len; 4524 char_u *leader2_flags; 4525 { 4526 int idx1 = 0, idx2 = 0; 4527 char_u *p; 4528 char_u *line1; 4529 char_u *line2; 4530 4531 if (leader1_len == 0) 4532 return (leader2_len == 0); 4533 4534 /* 4535 * If first leader has 'f' flag, the lines can be joined only if the 4536 * second line does not have a leader. 4537 * If first leader has 'e' flag, the lines can never be joined. 4538 * If fist leader has 's' flag, the lines can only be joined if there is 4539 * some text after it and the second line has the 'm' flag. 4540 */ 4541 if (leader1_flags != NULL) 4542 { 4543 for (p = leader1_flags; *p && *p != ':'; ++p) 4544 { 4545 if (*p == COM_FIRST) 4546 return (leader2_len == 0); 4547 if (*p == COM_END) 4548 return FALSE; 4549 if (*p == COM_START) 4550 { 4551 if (*(ml_get(lnum) + leader1_len) == NUL) 4552 return FALSE; 4553 if (leader2_flags == NULL || leader2_len == 0) 4554 return FALSE; 4555 for (p = leader2_flags; *p && *p != ':'; ++p) 4556 if (*p == COM_MIDDLE) 4557 return TRUE; 4558 return FALSE; 4559 } 4560 } 4561 } 4562 4563 /* 4564 * Get current line and next line, compare the leaders. 4565 * The first line has to be saved, only one line can be locked at a time. 4566 */ 4567 line1 = vim_strsave(ml_get(lnum)); 4568 if (line1 != NULL) 4569 { 4570 for (idx1 = 0; vim_iswhite(line1[idx1]); ++idx1) 4571 ; 4572 line2 = ml_get(lnum + 1); 4573 for (idx2 = 0; idx2 < leader2_len; ++idx2) 4574 { 4575 if (!vim_iswhite(line2[idx2])) 4576 { 4577 if (line1[idx1++] != line2[idx2]) 4578 break; 4579 } 4580 else 4581 while (vim_iswhite(line1[idx1])) 4582 ++idx1; 4583 } 4584 vim_free(line1); 4585 } 4586 return (idx2 == leader2_len && idx1 == leader1_len); 4587 } 4588 #endif 4589 4590 /* 4591 * Implementation of the format operator 'gq'. 4592 */ 4593 void 4594 op_format(oap, keep_cursor) 4595 oparg_T *oap; 4596 int keep_cursor; /* keep cursor on same text char */ 4597 { 4598 long old_line_count = curbuf->b_ml.ml_line_count; 4599 4600 /* Place the cursor where the "gq" or "gw" command was given, so that "u" 4601 * can put it back there. */ 4602 curwin->w_cursor = oap->cursor_start; 4603 4604 if (u_save((linenr_T)(oap->start.lnum - 1), 4605 (linenr_T)(oap->end.lnum + 1)) == FAIL) 4606 return; 4607 curwin->w_cursor = oap->start; 4608 4609 #ifdef FEAT_VISUAL 4610 if (oap->is_VIsual) 4611 /* When there is no change: need to remove the Visual selection */ 4612 redraw_curbuf_later(INVERTED); 4613 #endif 4614 4615 /* Set '[ mark at the start of the formatted area */ 4616 curbuf->b_op_start = oap->start; 4617 4618 /* For "gw" remember the cursor position and put it back below (adjusted 4619 * for joined and split lines). */ 4620 if (keep_cursor) 4621 saved_cursor = oap->cursor_start; 4622 4623 format_lines(oap->line_count, keep_cursor); 4624 4625 /* 4626 * Leave the cursor at the first non-blank of the last formatted line. 4627 * If the cursor was moved one line back (e.g. with "Q}") go to the next 4628 * line, so "." will do the next lines. 4629 */ 4630 if (oap->end_adjusted && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) 4631 ++curwin->w_cursor.lnum; 4632 beginline(BL_WHITE | BL_FIX); 4633 old_line_count = curbuf->b_ml.ml_line_count - old_line_count; 4634 msgmore(old_line_count); 4635 4636 /* put '] mark on the end of the formatted area */ 4637 curbuf->b_op_end = curwin->w_cursor; 4638 4639 if (keep_cursor) 4640 { 4641 curwin->w_cursor = saved_cursor; 4642 saved_cursor.lnum = 0; 4643 } 4644 4645 #ifdef FEAT_VISUAL 4646 if (oap->is_VIsual) 4647 { 4648 win_T *wp; 4649 4650 FOR_ALL_WINDOWS(wp) 4651 { 4652 if (wp->w_old_cursor_lnum != 0) 4653 { 4654 /* When lines have been inserted or deleted, adjust the end of 4655 * the Visual area to be redrawn. */ 4656 if (wp->w_old_cursor_lnum > wp->w_old_visual_lnum) 4657 wp->w_old_cursor_lnum += old_line_count; 4658 else 4659 wp->w_old_visual_lnum += old_line_count; 4660 } 4661 } 4662 } 4663 #endif 4664 } 4665 4666 #if defined(FEAT_EVAL) || defined(PROTO) 4667 /* 4668 * Implementation of the format operator 'gq' for when using 'formatexpr'. 4669 */ 4670 void 4671 op_formatexpr(oap) 4672 oparg_T *oap; 4673 { 4674 # ifdef FEAT_VISUAL 4675 if (oap->is_VIsual) 4676 /* When there is no change: need to remove the Visual selection */ 4677 redraw_curbuf_later(INVERTED); 4678 # endif 4679 4680 if (fex_format(oap->start.lnum, oap->line_count, NUL) != 0) 4681 /* As documented: when 'formatexpr' returns non-zero fall back to 4682 * internal formatting. */ 4683 op_format(oap, FALSE); 4684 } 4685 4686 int 4687 fex_format(lnum, count, c) 4688 linenr_T lnum; 4689 long count; 4690 int c; /* character to be inserted */ 4691 { 4692 int use_sandbox = was_set_insecurely((char_u *)"formatexpr", 4693 OPT_LOCAL); 4694 int r; 4695 4696 /* 4697 * Set v:lnum to the first line number and v:count to the number of lines. 4698 * Set v:char to the character to be inserted (can be NUL). 4699 */ 4700 set_vim_var_nr(VV_LNUM, lnum); 4701 set_vim_var_nr(VV_COUNT, count); 4702 set_vim_var_char(c); 4703 4704 /* 4705 * Evaluate the function. 4706 */ 4707 if (use_sandbox) 4708 ++sandbox; 4709 r = eval_to_number(curbuf->b_p_fex); 4710 if (use_sandbox) 4711 --sandbox; 4712 4713 set_vim_var_string(VV_CHAR, NULL, -1); 4714 4715 return r; 4716 } 4717 #endif 4718 4719 /* 4720 * Format "line_count" lines, starting at the cursor position. 4721 * When "line_count" is negative, format until the end of the paragraph. 4722 * Lines after the cursor line are saved for undo, caller must have saved the 4723 * first line. 4724 */ 4725 void 4726 format_lines(line_count, avoid_fex) 4727 linenr_T line_count; 4728 int avoid_fex; /* don't use 'formatexpr' */ 4729 { 4730 int max_len; 4731 int is_not_par; /* current line not part of parag. */ 4732 int next_is_not_par; /* next line not part of paragraph */ 4733 int is_end_par; /* at end of paragraph */ 4734 int prev_is_end_par = FALSE;/* prev. line not part of parag. */ 4735 int next_is_start_par = FALSE; 4736 #ifdef FEAT_COMMENTS 4737 int leader_len = 0; /* leader len of current line */ 4738 int next_leader_len; /* leader len of next line */ 4739 char_u *leader_flags = NULL; /* flags for leader of current line */ 4740 char_u *next_leader_flags; /* flags for leader of next line */ 4741 int do_comments; /* format comments */ 4742 int do_comments_list = 0; /* format comments with 'n' or '2' */ 4743 #endif 4744 int advance = TRUE; 4745 int second_indent = -1; /* indent for second line (comment 4746 * aware) */ 4747 int do_second_indent; 4748 int do_number_indent; 4749 int do_trail_white; 4750 int first_par_line = TRUE; 4751 int smd_save; 4752 long count; 4753 int need_set_indent = TRUE; /* set indent of next paragraph */ 4754 int force_format = FALSE; 4755 int old_State = State; 4756 4757 /* length of a line to force formatting: 3 * 'tw' */ 4758 max_len = comp_textwidth(TRUE) * 3; 4759 4760 /* check for 'q', '2' and '1' in 'formatoptions' */ 4761 #ifdef FEAT_COMMENTS 4762 do_comments = has_format_option(FO_Q_COMS); 4763 #endif 4764 do_second_indent = has_format_option(FO_Q_SECOND); 4765 do_number_indent = has_format_option(FO_Q_NUMBER); 4766 do_trail_white = has_format_option(FO_WHITE_PAR); 4767 4768 /* 4769 * Get info about the previous and current line. 4770 */ 4771 if (curwin->w_cursor.lnum > 1) 4772 is_not_par = fmt_check_par(curwin->w_cursor.lnum - 1 4773 #ifdef FEAT_COMMENTS 4774 , &leader_len, &leader_flags, do_comments 4775 #endif 4776 ); 4777 else 4778 is_not_par = TRUE; 4779 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum 4780 #ifdef FEAT_COMMENTS 4781 , &next_leader_len, &next_leader_flags, do_comments 4782 #endif 4783 ); 4784 is_end_par = (is_not_par || next_is_not_par); 4785 if (!is_end_par && do_trail_white) 4786 is_end_par = !ends_in_white(curwin->w_cursor.lnum - 1); 4787 4788 curwin->w_cursor.lnum--; 4789 for (count = line_count; count != 0 && !got_int; --count) 4790 { 4791 /* 4792 * Advance to next paragraph. 4793 */ 4794 if (advance) 4795 { 4796 curwin->w_cursor.lnum++; 4797 prev_is_end_par = is_end_par; 4798 is_not_par = next_is_not_par; 4799 #ifdef FEAT_COMMENTS 4800 leader_len = next_leader_len; 4801 leader_flags = next_leader_flags; 4802 #endif 4803 } 4804 4805 /* 4806 * The last line to be formatted. 4807 */ 4808 if (count == 1 || curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count) 4809 { 4810 next_is_not_par = TRUE; 4811 #ifdef FEAT_COMMENTS 4812 next_leader_len = 0; 4813 next_leader_flags = NULL; 4814 #endif 4815 } 4816 else 4817 { 4818 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum + 1 4819 #ifdef FEAT_COMMENTS 4820 , &next_leader_len, &next_leader_flags, do_comments 4821 #endif 4822 ); 4823 if (do_number_indent) 4824 next_is_start_par = 4825 (get_number_indent(curwin->w_cursor.lnum + 1) > 0); 4826 } 4827 advance = TRUE; 4828 is_end_par = (is_not_par || next_is_not_par || next_is_start_par); 4829 if (!is_end_par && do_trail_white) 4830 is_end_par = !ends_in_white(curwin->w_cursor.lnum); 4831 4832 /* 4833 * Skip lines that are not in a paragraph. 4834 */ 4835 if (is_not_par) 4836 { 4837 if (line_count < 0) 4838 break; 4839 } 4840 else 4841 { 4842 /* 4843 * For the first line of a paragraph, check indent of second line. 4844 * Don't do this for comments and empty lines. 4845 */ 4846 if (first_par_line 4847 && (do_second_indent || do_number_indent) 4848 && prev_is_end_par 4849 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) 4850 { 4851 if (do_second_indent && !lineempty(curwin->w_cursor.lnum + 1)) 4852 { 4853 #ifdef FEAT_COMMENTS 4854 if (leader_len == 0 && next_leader_len == 0) 4855 { 4856 /* no comment found */ 4857 #endif 4858 second_indent = 4859 get_indent_lnum(curwin->w_cursor.lnum + 1); 4860 #ifdef FEAT_COMMENTS 4861 } 4862 else 4863 { 4864 second_indent = next_leader_len; 4865 do_comments_list = 1; 4866 } 4867 #endif 4868 } 4869 else if (do_number_indent) 4870 { 4871 #ifdef FEAT_COMMENTS 4872 if (leader_len == 0 && next_leader_len == 0) 4873 { 4874 /* no comment found */ 4875 #endif 4876 second_indent = 4877 get_number_indent(curwin->w_cursor.lnum); 4878 #ifdef FEAT_COMMENTS 4879 } 4880 else 4881 { 4882 /* get_number_indent() is now "comment aware"... */ 4883 second_indent = 4884 get_number_indent(curwin->w_cursor.lnum); 4885 do_comments_list = 1; 4886 } 4887 #endif 4888 } 4889 } 4890 4891 /* 4892 * When the comment leader changes, it's the end of the paragraph. 4893 */ 4894 if (curwin->w_cursor.lnum >= curbuf->b_ml.ml_line_count 4895 #ifdef FEAT_COMMENTS 4896 || !same_leader(curwin->w_cursor.lnum, 4897 leader_len, leader_flags, 4898 next_leader_len, next_leader_flags) 4899 #endif 4900 ) 4901 is_end_par = TRUE; 4902 4903 /* 4904 * If we have got to the end of a paragraph, or the line is 4905 * getting long, format it. 4906 */ 4907 if (is_end_par || force_format) 4908 { 4909 if (need_set_indent) 4910 /* replace indent in first line with minimal number of 4911 * tabs and spaces, according to current options */ 4912 (void)set_indent(get_indent(), SIN_CHANGED); 4913 4914 /* put cursor on last non-space */ 4915 State = NORMAL; /* don't go past end-of-line */ 4916 coladvance((colnr_T)MAXCOL); 4917 while (curwin->w_cursor.col && vim_isspace(gchar_cursor())) 4918 dec_cursor(); 4919 4920 /* do the formatting, without 'showmode' */ 4921 State = INSERT; /* for open_line() */ 4922 smd_save = p_smd; 4923 p_smd = FALSE; 4924 insertchar(NUL, INSCHAR_FORMAT 4925 #ifdef FEAT_COMMENTS 4926 + (do_comments ? INSCHAR_DO_COM : 0) 4927 + (do_comments && do_comments_list 4928 ? INSCHAR_COM_LIST : 0) 4929 #endif 4930 + (avoid_fex ? INSCHAR_NO_FEX : 0), second_indent); 4931 State = old_State; 4932 p_smd = smd_save; 4933 second_indent = -1; 4934 /* at end of par.: need to set indent of next par. */ 4935 need_set_indent = is_end_par; 4936 if (is_end_par) 4937 { 4938 /* When called with a negative line count, break at the 4939 * end of the paragraph. */ 4940 if (line_count < 0) 4941 break; 4942 first_par_line = TRUE; 4943 } 4944 force_format = FALSE; 4945 } 4946 4947 /* 4948 * When still in same paragraph, join the lines together. But 4949 * first delete the comment leader from the second line. 4950 */ 4951 if (!is_end_par) 4952 { 4953 advance = FALSE; 4954 curwin->w_cursor.lnum++; 4955 curwin->w_cursor.col = 0; 4956 if (line_count < 0 && u_save_cursor() == FAIL) 4957 break; 4958 #ifdef FEAT_COMMENTS 4959 (void)del_bytes((long)next_leader_len, FALSE, FALSE); 4960 if (next_leader_len > 0) 4961 mark_col_adjust(curwin->w_cursor.lnum, (colnr_T)0, 0L, 4962 (long)-next_leader_len); 4963 #endif 4964 curwin->w_cursor.lnum--; 4965 if (do_join(2, TRUE, FALSE, FALSE) == FAIL) 4966 { 4967 beep_flush(); 4968 break; 4969 } 4970 first_par_line = FALSE; 4971 /* If the line is getting long, format it next time */ 4972 if (STRLEN(ml_get_curline()) > (size_t)max_len) 4973 force_format = TRUE; 4974 else 4975 force_format = FALSE; 4976 } 4977 } 4978 line_breakcheck(); 4979 } 4980 } 4981 4982 /* 4983 * Return TRUE if line "lnum" ends in a white character. 4984 */ 4985 static int 4986 ends_in_white(lnum) 4987 linenr_T lnum; 4988 { 4989 char_u *s = ml_get(lnum); 4990 size_t l; 4991 4992 if (*s == NUL) 4993 return FALSE; 4994 /* Don't use STRLEN() inside vim_iswhite(), SAS/C complains: "macro 4995 * invocation may call function multiple times". */ 4996 l = STRLEN(s) - 1; 4997 return vim_iswhite(s[l]); 4998 } 4999 5000 /* 5001 * Blank lines, and lines containing only the comment leader, are left 5002 * untouched by the formatting. The function returns TRUE in this 5003 * case. It also returns TRUE when a line starts with the end of a comment 5004 * ('e' in comment flags), so that this line is skipped, and not joined to the 5005 * previous line. A new paragraph starts after a blank line, or when the 5006 * comment leader changes -- webb. 5007 */ 5008 #ifdef FEAT_COMMENTS 5009 static int 5010 fmt_check_par(lnum, leader_len, leader_flags, do_comments) 5011 linenr_T lnum; 5012 int *leader_len; 5013 char_u **leader_flags; 5014 int do_comments; 5015 { 5016 char_u *flags = NULL; /* init for GCC */ 5017 char_u *ptr; 5018 5019 ptr = ml_get(lnum); 5020 if (do_comments) 5021 *leader_len = get_leader_len(ptr, leader_flags, FALSE, TRUE); 5022 else 5023 *leader_len = 0; 5024 5025 if (*leader_len > 0) 5026 { 5027 /* 5028 * Search for 'e' flag in comment leader flags. 5029 */ 5030 flags = *leader_flags; 5031 while (*flags && *flags != ':' && *flags != COM_END) 5032 ++flags; 5033 } 5034 5035 return (*skipwhite(ptr + *leader_len) == NUL 5036 || (*leader_len > 0 && *flags == COM_END) 5037 || startPS(lnum, NUL, FALSE)); 5038 } 5039 #else 5040 static int 5041 fmt_check_par(lnum) 5042 linenr_T lnum; 5043 { 5044 return (*skipwhite(ml_get(lnum)) == NUL || startPS(lnum, NUL, FALSE)); 5045 } 5046 #endif 5047 5048 /* 5049 * Return TRUE when a paragraph starts in line "lnum". Return FALSE when the 5050 * previous line is in the same paragraph. Used for auto-formatting. 5051 */ 5052 int 5053 paragraph_start(lnum) 5054 linenr_T lnum; 5055 { 5056 char_u *p; 5057 #ifdef FEAT_COMMENTS 5058 int leader_len = 0; /* leader len of current line */ 5059 char_u *leader_flags = NULL; /* flags for leader of current line */ 5060 int next_leader_len; /* leader len of next line */ 5061 char_u *next_leader_flags; /* flags for leader of next line */ 5062 int do_comments; /* format comments */ 5063 #endif 5064 5065 if (lnum <= 1) 5066 return TRUE; /* start of the file */ 5067 5068 p = ml_get(lnum - 1); 5069 if (*p == NUL) 5070 return TRUE; /* after empty line */ 5071 5072 #ifdef FEAT_COMMENTS 5073 do_comments = has_format_option(FO_Q_COMS); 5074 #endif 5075 if (fmt_check_par(lnum - 1 5076 #ifdef FEAT_COMMENTS 5077 , &leader_len, &leader_flags, do_comments 5078 #endif 5079 )) 5080 return TRUE; /* after non-paragraph line */ 5081 5082 if (fmt_check_par(lnum 5083 #ifdef FEAT_COMMENTS 5084 , &next_leader_len, &next_leader_flags, do_comments 5085 #endif 5086 )) 5087 return TRUE; /* "lnum" is not a paragraph line */ 5088 5089 if (has_format_option(FO_WHITE_PAR) && !ends_in_white(lnum - 1)) 5090 return TRUE; /* missing trailing space in previous line. */ 5091 5092 if (has_format_option(FO_Q_NUMBER) && (get_number_indent(lnum) > 0)) 5093 return TRUE; /* numbered item starts in "lnum". */ 5094 5095 #ifdef FEAT_COMMENTS 5096 if (!same_leader(lnum - 1, leader_len, leader_flags, 5097 next_leader_len, next_leader_flags)) 5098 return TRUE; /* change of comment leader. */ 5099 #endif 5100 5101 return FALSE; 5102 } 5103 5104 #ifdef FEAT_VISUAL 5105 /* 5106 * prepare a few things for block mode yank/delete/tilde 5107 * 5108 * for delete: 5109 * - textlen includes the first/last char to be (partly) deleted 5110 * - start/endspaces is the number of columns that are taken by the 5111 * first/last deleted char minus the number of columns that have to be 5112 * deleted. 5113 * for yank and tilde: 5114 * - textlen includes the first/last char to be wholly yanked 5115 * - start/endspaces is the number of columns of the first/last yanked char 5116 * that are to be yanked. 5117 */ 5118 static void 5119 block_prep(oap, bdp, lnum, is_del) 5120 oparg_T *oap; 5121 struct block_def *bdp; 5122 linenr_T lnum; 5123 int is_del; 5124 { 5125 int incr = 0; 5126 char_u *pend; 5127 char_u *pstart; 5128 char_u *line; 5129 char_u *prev_pstart; 5130 char_u *prev_pend; 5131 5132 bdp->startspaces = 0; 5133 bdp->endspaces = 0; 5134 bdp->textlen = 0; 5135 bdp->start_vcol = 0; 5136 bdp->end_vcol = 0; 5137 #ifdef FEAT_VISUALEXTRA 5138 bdp->is_short = FALSE; 5139 bdp->is_oneChar = FALSE; 5140 bdp->pre_whitesp = 0; 5141 bdp->pre_whitesp_c = 0; 5142 bdp->end_char_vcols = 0; 5143 #endif 5144 bdp->start_char_vcols = 0; 5145 5146 line = ml_get(lnum); 5147 pstart = line; 5148 prev_pstart = line; 5149 while (bdp->start_vcol < oap->start_vcol && *pstart) 5150 { 5151 /* Count a tab for what it's worth (if list mode not on) */ 5152 incr = lbr_chartabsize(pstart, (colnr_T)bdp->start_vcol); 5153 bdp->start_vcol += incr; 5154 #ifdef FEAT_VISUALEXTRA 5155 if (vim_iswhite(*pstart)) 5156 { 5157 bdp->pre_whitesp += incr; 5158 bdp->pre_whitesp_c++; 5159 } 5160 else 5161 { 5162 bdp->pre_whitesp = 0; 5163 bdp->pre_whitesp_c = 0; 5164 } 5165 #endif 5166 prev_pstart = pstart; 5167 mb_ptr_adv(pstart); 5168 } 5169 bdp->start_char_vcols = incr; 5170 if (bdp->start_vcol < oap->start_vcol) /* line too short */ 5171 { 5172 bdp->end_vcol = bdp->start_vcol; 5173 #ifdef FEAT_VISUALEXTRA 5174 bdp->is_short = TRUE; 5175 #endif 5176 if (!is_del || oap->op_type == OP_APPEND) 5177 bdp->endspaces = oap->end_vcol - oap->start_vcol + 1; 5178 } 5179 else 5180 { 5181 /* notice: this converts partly selected Multibyte characters to 5182 * spaces, too. */ 5183 bdp->startspaces = bdp->start_vcol - oap->start_vcol; 5184 if (is_del && bdp->startspaces) 5185 bdp->startspaces = bdp->start_char_vcols - bdp->startspaces; 5186 pend = pstart; 5187 bdp->end_vcol = bdp->start_vcol; 5188 if (bdp->end_vcol > oap->end_vcol) /* it's all in one character */ 5189 { 5190 #ifdef FEAT_VISUALEXTRA 5191 bdp->is_oneChar = TRUE; 5192 #endif 5193 if (oap->op_type == OP_INSERT) 5194 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces; 5195 else if (oap->op_type == OP_APPEND) 5196 { 5197 bdp->startspaces += oap->end_vcol - oap->start_vcol + 1; 5198 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces; 5199 } 5200 else 5201 { 5202 bdp->startspaces = oap->end_vcol - oap->start_vcol + 1; 5203 if (is_del && oap->op_type != OP_LSHIFT) 5204 { 5205 /* just putting the sum of those two into 5206 * bdp->startspaces doesn't work for Visual replace, 5207 * so we have to split the tab in two */ 5208 bdp->startspaces = bdp->start_char_vcols 5209 - (bdp->start_vcol - oap->start_vcol); 5210 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1; 5211 } 5212 } 5213 } 5214 else 5215 { 5216 prev_pend = pend; 5217 while (bdp->end_vcol <= oap->end_vcol && *pend != NUL) 5218 { 5219 /* Count a tab for what it's worth (if list mode not on) */ 5220 prev_pend = pend; 5221 incr = lbr_chartabsize_adv(&pend, (colnr_T)bdp->end_vcol); 5222 bdp->end_vcol += incr; 5223 } 5224 if (bdp->end_vcol <= oap->end_vcol 5225 && (!is_del 5226 || oap->op_type == OP_APPEND 5227 || oap->op_type == OP_REPLACE)) /* line too short */ 5228 { 5229 #ifdef FEAT_VISUALEXTRA 5230 bdp->is_short = TRUE; 5231 #endif 5232 /* Alternative: include spaces to fill up the block. 5233 * Disadvantage: can lead to trailing spaces when the line is 5234 * short where the text is put */ 5235 /* if (!is_del || oap->op_type == OP_APPEND) */ 5236 if (oap->op_type == OP_APPEND || virtual_op) 5237 bdp->endspaces = oap->end_vcol - bdp->end_vcol 5238 + oap->inclusive; 5239 else 5240 bdp->endspaces = 0; /* replace doesn't add characters */ 5241 } 5242 else if (bdp->end_vcol > oap->end_vcol) 5243 { 5244 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1; 5245 if (!is_del && bdp->endspaces) 5246 { 5247 bdp->endspaces = incr - bdp->endspaces; 5248 if (pend != pstart) 5249 pend = prev_pend; 5250 } 5251 } 5252 } 5253 #ifdef FEAT_VISUALEXTRA 5254 bdp->end_char_vcols = incr; 5255 #endif 5256 if (is_del && bdp->startspaces) 5257 pstart = prev_pstart; 5258 bdp->textlen = (int)(pend - pstart); 5259 } 5260 bdp->textcol = (colnr_T) (pstart - line); 5261 bdp->textstart = pstart; 5262 } 5263 #endif /* FEAT_VISUAL */ 5264 5265 #ifdef FEAT_RIGHTLEFT 5266 static void reverse_line __ARGS((char_u *s)); 5267 5268 static void 5269 reverse_line(s) 5270 char_u *s; 5271 { 5272 int i, j; 5273 char_u c; 5274 5275 if ((i = (int)STRLEN(s) - 1) <= 0) 5276 return; 5277 5278 curwin->w_cursor.col = i - curwin->w_cursor.col; 5279 for (j = 0; j < i; j++, i--) 5280 { 5281 c = s[i]; s[i] = s[j]; s[j] = c; 5282 } 5283 } 5284 5285 # define RLADDSUBFIX(ptr) if (curwin->w_p_rl) reverse_line(ptr); 5286 #else 5287 # define RLADDSUBFIX(ptr) 5288 #endif 5289 5290 /* 5291 * add or subtract 'Prenum1' from a number in a line 5292 * 'command' is CTRL-A for add, CTRL-X for subtract 5293 * 5294 * return FAIL for failure, OK otherwise 5295 */ 5296 int 5297 do_addsub(command, Prenum1) 5298 int command; 5299 linenr_T Prenum1; 5300 { 5301 int col; 5302 char_u *buf1; 5303 char_u buf2[NUMBUFLEN]; 5304 int hex; /* 'X' or 'x': hex; '0': octal */ 5305 static int hexupper = FALSE; /* 0xABC */ 5306 unsigned long n; 5307 long_u oldn; 5308 char_u *ptr; 5309 int c; 5310 int length = 0; /* character length of the number */ 5311 int todel; 5312 int dohex; 5313 int dooct; 5314 int doalp; 5315 int firstdigit; 5316 int negative; 5317 int subtract; 5318 5319 dohex = (vim_strchr(curbuf->b_p_nf, 'x') != NULL); /* "heX" */ 5320 dooct = (vim_strchr(curbuf->b_p_nf, 'o') != NULL); /* "Octal" */ 5321 doalp = (vim_strchr(curbuf->b_p_nf, 'p') != NULL); /* "alPha" */ 5322 5323 ptr = ml_get_curline(); 5324 RLADDSUBFIX(ptr); 5325 5326 /* 5327 * First check if we are on a hexadecimal number, after the "0x". 5328 */ 5329 col = curwin->w_cursor.col; 5330 if (dohex) 5331 while (col > 0 && vim_isxdigit(ptr[col])) 5332 --col; 5333 if ( dohex 5334 && col > 0 5335 && (ptr[col] == 'X' 5336 || ptr[col] == 'x') 5337 && ptr[col - 1] == '0' 5338 && vim_isxdigit(ptr[col + 1])) 5339 { 5340 /* 5341 * Found hexadecimal number, move to its start. 5342 */ 5343 --col; 5344 } 5345 else 5346 { 5347 /* 5348 * Search forward and then backward to find the start of number. 5349 */ 5350 col = curwin->w_cursor.col; 5351 5352 while (ptr[col] != NUL 5353 && !vim_isdigit(ptr[col]) 5354 && !(doalp && ASCII_ISALPHA(ptr[col]))) 5355 ++col; 5356 5357 while (col > 0 5358 && vim_isdigit(ptr[col - 1]) 5359 && !(doalp && ASCII_ISALPHA(ptr[col]))) 5360 --col; 5361 } 5362 5363 /* 5364 * If a number was found, and saving for undo works, replace the number. 5365 */ 5366 firstdigit = ptr[col]; 5367 RLADDSUBFIX(ptr); 5368 if ((!VIM_ISDIGIT(firstdigit) && !(doalp && ASCII_ISALPHA(firstdigit))) 5369 || u_save_cursor() != OK) 5370 { 5371 beep_flush(); 5372 return FAIL; 5373 } 5374 5375 /* get ptr again, because u_save() may have changed it */ 5376 ptr = ml_get_curline(); 5377 RLADDSUBFIX(ptr); 5378 5379 if (doalp && ASCII_ISALPHA(firstdigit)) 5380 { 5381 /* decrement or increment alphabetic character */ 5382 if (command == Ctrl_X) 5383 { 5384 if (CharOrd(firstdigit) < Prenum1) 5385 { 5386 if (isupper(firstdigit)) 5387 firstdigit = 'A'; 5388 else 5389 firstdigit = 'a'; 5390 } 5391 else 5392 #ifdef EBCDIC 5393 firstdigit = EBCDIC_CHAR_ADD(firstdigit, -Prenum1); 5394 #else 5395 firstdigit -= Prenum1; 5396 #endif 5397 } 5398 else 5399 { 5400 if (26 - CharOrd(firstdigit) - 1 < Prenum1) 5401 { 5402 if (isupper(firstdigit)) 5403 firstdigit = 'Z'; 5404 else 5405 firstdigit = 'z'; 5406 } 5407 else 5408 #ifdef EBCDIC 5409 firstdigit = EBCDIC_CHAR_ADD(firstdigit, Prenum1); 5410 #else 5411 firstdigit += Prenum1; 5412 #endif 5413 } 5414 curwin->w_cursor.col = col; 5415 (void)del_char(FALSE); 5416 ins_char(firstdigit); 5417 } 5418 else 5419 { 5420 negative = FALSE; 5421 if (col > 0 && ptr[col - 1] == '-') /* negative number */ 5422 { 5423 --col; 5424 negative = TRUE; 5425 } 5426 5427 /* get the number value (unsigned) */ 5428 vim_str2nr(ptr + col, &hex, &length, dooct, dohex, NULL, &n); 5429 5430 /* ignore leading '-' for hex and octal numbers */ 5431 if (hex && negative) 5432 { 5433 ++col; 5434 --length; 5435 negative = FALSE; 5436 } 5437 5438 /* add or subtract */ 5439 subtract = FALSE; 5440 if (command == Ctrl_X) 5441 subtract ^= TRUE; 5442 if (negative) 5443 subtract ^= TRUE; 5444 5445 oldn = n; 5446 if (subtract) 5447 n -= (unsigned long)Prenum1; 5448 else 5449 n += (unsigned long)Prenum1; 5450 5451 /* handle wraparound for decimal numbers */ 5452 if (!hex) 5453 { 5454 if (subtract) 5455 { 5456 if (n > oldn) 5457 { 5458 n = 1 + (n ^ (unsigned long)-1); 5459 negative ^= TRUE; 5460 } 5461 } 5462 else /* add */ 5463 { 5464 if (n < oldn) 5465 { 5466 n = (n ^ (unsigned long)-1); 5467 negative ^= TRUE; 5468 } 5469 } 5470 if (n == 0) 5471 negative = FALSE; 5472 } 5473 5474 /* 5475 * Delete the old number. 5476 */ 5477 curwin->w_cursor.col = col; 5478 todel = length; 5479 c = gchar_cursor(); 5480 /* 5481 * Don't include the '-' in the length, only the length of the part 5482 * after it is kept the same. 5483 */ 5484 if (c == '-') 5485 --length; 5486 while (todel-- > 0) 5487 { 5488 if (c < 0x100 && isalpha(c)) 5489 { 5490 if (isupper(c)) 5491 hexupper = TRUE; 5492 else 5493 hexupper = FALSE; 5494 } 5495 /* del_char() will mark line needing displaying */ 5496 (void)del_char(FALSE); 5497 c = gchar_cursor(); 5498 } 5499 5500 /* 5501 * Prepare the leading characters in buf1[]. 5502 * When there are many leading zeros it could be very long. Allocate 5503 * a bit too much. 5504 */ 5505 buf1 = alloc((unsigned)length + NUMBUFLEN); 5506 if (buf1 == NULL) 5507 return FAIL; 5508 ptr = buf1; 5509 if (negative) 5510 { 5511 *ptr++ = '-'; 5512 } 5513 if (hex) 5514 { 5515 *ptr++ = '0'; 5516 --length; 5517 } 5518 if (hex == 'x' || hex == 'X') 5519 { 5520 *ptr++ = hex; 5521 --length; 5522 } 5523 5524 /* 5525 * Put the number characters in buf2[]. 5526 */ 5527 if (hex == 0) 5528 sprintf((char *)buf2, "%lu", n); 5529 else if (hex == '0') 5530 sprintf((char *)buf2, "%lo", n); 5531 else if (hex && hexupper) 5532 sprintf((char *)buf2, "%lX", n); 5533 else 5534 sprintf((char *)buf2, "%lx", n); 5535 length -= (int)STRLEN(buf2); 5536 5537 /* 5538 * Adjust number of zeros to the new number of digits, so the 5539 * total length of the number remains the same. 5540 * Don't do this when 5541 * the result may look like an octal number. 5542 */ 5543 if (firstdigit == '0' && !(dooct && hex == 0)) 5544 while (length-- > 0) 5545 *ptr++ = '0'; 5546 *ptr = NUL; 5547 STRCAT(buf1, buf2); 5548 ins_str(buf1); /* insert the new number */ 5549 vim_free(buf1); 5550 } 5551 --curwin->w_cursor.col; 5552 curwin->w_set_curswant = TRUE; 5553 #ifdef FEAT_RIGHTLEFT 5554 ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE); 5555 RLADDSUBFIX(ptr); 5556 #endif 5557 return OK; 5558 } 5559 5560 #ifdef FEAT_VIMINFO 5561 int 5562 read_viminfo_register(virp, force) 5563 vir_T *virp; 5564 int force; 5565 { 5566 int eof; 5567 int do_it = TRUE; 5568 int size; 5569 int limit; 5570 int i; 5571 int set_prev = FALSE; 5572 char_u *str; 5573 char_u **array = NULL; 5574 5575 /* We only get here (hopefully) if line[0] == '"' */ 5576 str = virp->vir_line + 1; 5577 5578 /* If the line starts with "" this is the y_previous register. */ 5579 if (*str == '"') 5580 { 5581 set_prev = TRUE; 5582 str++; 5583 } 5584 5585 if (!ASCII_ISALNUM(*str) && *str != '-') 5586 { 5587 if (viminfo_error("E577: ", _("Illegal register name"), virp->vir_line)) 5588 return TRUE; /* too many errors, pretend end-of-file */ 5589 do_it = FALSE; 5590 } 5591 get_yank_register(*str++, FALSE); 5592 if (!force && y_current->y_array != NULL) 5593 do_it = FALSE; 5594 5595 if (*str == '@') 5596 { 5597 /* "x@: register x used for @@ */ 5598 if (force || execreg_lastc == NUL) 5599 execreg_lastc = str[-1]; 5600 } 5601 5602 size = 0; 5603 limit = 100; /* Optimized for registers containing <= 100 lines */ 5604 if (do_it) 5605 { 5606 if (set_prev) 5607 y_previous = y_current; 5608 vim_free(y_current->y_array); 5609 array = y_current->y_array = 5610 (char_u **)alloc((unsigned)(limit * sizeof(char_u *))); 5611 str = skipwhite(skiptowhite(str)); 5612 if (STRNCMP(str, "CHAR", 4) == 0) 5613 y_current->y_type = MCHAR; 5614 #ifdef FEAT_VISUAL 5615 else if (STRNCMP(str, "BLOCK", 5) == 0) 5616 y_current->y_type = MBLOCK; 5617 #endif 5618 else 5619 y_current->y_type = MLINE; 5620 /* get the block width; if it's missing we get a zero, which is OK */ 5621 str = skipwhite(skiptowhite(str)); 5622 #ifdef FEAT_VISUAL 5623 y_current->y_width = getdigits(&str); 5624 #else 5625 (void)getdigits(&str); 5626 #endif 5627 } 5628 5629 while (!(eof = viminfo_readline(virp)) 5630 && (virp->vir_line[0] == TAB || virp->vir_line[0] == '<')) 5631 { 5632 if (do_it) 5633 { 5634 if (size >= limit) 5635 { 5636 y_current->y_array = (char_u **) 5637 alloc((unsigned)(limit * 2 * sizeof(char_u *))); 5638 for (i = 0; i < limit; i++) 5639 y_current->y_array[i] = array[i]; 5640 vim_free(array); 5641 limit *= 2; 5642 array = y_current->y_array; 5643 } 5644 str = viminfo_readstring(virp, 1, TRUE); 5645 if (str != NULL) 5646 array[size++] = str; 5647 else 5648 do_it = FALSE; 5649 } 5650 } 5651 if (do_it) 5652 { 5653 if (size == 0) 5654 { 5655 vim_free(array); 5656 y_current->y_array = NULL; 5657 } 5658 else if (size < limit) 5659 { 5660 y_current->y_array = 5661 (char_u **)alloc((unsigned)(size * sizeof(char_u *))); 5662 for (i = 0; i < size; i++) 5663 y_current->y_array[i] = array[i]; 5664 vim_free(array); 5665 } 5666 y_current->y_size = size; 5667 } 5668 return eof; 5669 } 5670 5671 void 5672 write_viminfo_registers(fp) 5673 FILE *fp; 5674 { 5675 int i, j; 5676 char_u *type; 5677 char_u c; 5678 int num_lines; 5679 int max_num_lines; 5680 int max_kbyte; 5681 long len; 5682 5683 fputs(_("\n# Registers:\n"), fp); 5684 5685 /* Get '<' value, use old '"' value if '<' is not found. */ 5686 max_num_lines = get_viminfo_parameter('<'); 5687 if (max_num_lines < 0) 5688 max_num_lines = get_viminfo_parameter('"'); 5689 if (max_num_lines == 0) 5690 return; 5691 max_kbyte = get_viminfo_parameter('s'); 5692 if (max_kbyte == 0) 5693 return; 5694 5695 for (i = 0; i < NUM_REGISTERS; i++) 5696 { 5697 if (y_regs[i].y_array == NULL) 5698 continue; 5699 #ifdef FEAT_CLIPBOARD 5700 /* Skip '*'/'+' register, we don't want them back next time */ 5701 if (i == STAR_REGISTER || i == PLUS_REGISTER) 5702 continue; 5703 #endif 5704 #ifdef FEAT_DND 5705 /* Neither do we want the '~' register */ 5706 if (i == TILDE_REGISTER) 5707 continue; 5708 #endif 5709 /* Skip empty registers. */ 5710 num_lines = y_regs[i].y_size; 5711 if (num_lines == 0 5712 || (num_lines == 1 && y_regs[i].y_type == MCHAR 5713 && *y_regs[i].y_array[0] == NUL)) 5714 continue; 5715 5716 if (max_kbyte > 0) 5717 { 5718 /* Skip register if there is more text than the maximum size. */ 5719 len = 0; 5720 for (j = 0; j < num_lines; j++) 5721 len += (long)STRLEN(y_regs[i].y_array[j]) + 1L; 5722 if (len > (long)max_kbyte * 1024L) 5723 continue; 5724 } 5725 5726 switch (y_regs[i].y_type) 5727 { 5728 case MLINE: 5729 type = (char_u *)"LINE"; 5730 break; 5731 case MCHAR: 5732 type = (char_u *)"CHAR"; 5733 break; 5734 #ifdef FEAT_VISUAL 5735 case MBLOCK: 5736 type = (char_u *)"BLOCK"; 5737 break; 5738 #endif 5739 default: 5740 sprintf((char *)IObuff, _("E574: Unknown register type %d"), 5741 y_regs[i].y_type); 5742 emsg(IObuff); 5743 type = (char_u *)"LINE"; 5744 break; 5745 } 5746 if (y_previous == &y_regs[i]) 5747 fprintf(fp, "\""); 5748 c = get_register_name(i); 5749 fprintf(fp, "\"%c", c); 5750 if (c == execreg_lastc) 5751 fprintf(fp, "@"); 5752 fprintf(fp, "\t%s\t%d\n", type, 5753 #ifdef FEAT_VISUAL 5754 (int)y_regs[i].y_width 5755 #else 5756 0 5757 #endif 5758 ); 5759 5760 /* If max_num_lines < 0, then we save ALL the lines in the register */ 5761 if (max_num_lines > 0 && num_lines > max_num_lines) 5762 num_lines = max_num_lines; 5763 for (j = 0; j < num_lines; j++) 5764 { 5765 putc('\t', fp); 5766 viminfo_writestring(fp, y_regs[i].y_array[j]); 5767 } 5768 } 5769 } 5770 #endif /* FEAT_VIMINFO */ 5771 5772 #if defined(FEAT_CLIPBOARD) || defined(PROTO) 5773 /* 5774 * SELECTION / PRIMARY ('*') 5775 * 5776 * Text selection stuff that uses the GUI selection register '*'. When using a 5777 * GUI this may be text from another window, otherwise it is the last text we 5778 * had highlighted with VIsual mode. With mouse support, clicking the middle 5779 * button performs the paste, otherwise you will need to do <"*p>. " 5780 * If not under X, it is synonymous with the clipboard register '+'. 5781 * 5782 * X CLIPBOARD ('+') 5783 * 5784 * Text selection stuff that uses the GUI clipboard register '+'. 5785 * Under X, this matches the standard cut/paste buffer CLIPBOARD selection. 5786 * It will be used for unnamed cut/pasting is 'clipboard' contains "unnamed", 5787 * otherwise you will need to do <"+p>. " 5788 * If not under X, it is synonymous with the selection register '*'. 5789 */ 5790 5791 /* 5792 * Routine to export any final X selection we had to the environment 5793 * so that the text is still available after vim has exited. X selections 5794 * only exist while the owning application exists, so we write to the 5795 * permanent (while X runs) store CUT_BUFFER0. 5796 * Dump the CLIPBOARD selection if we own it (it's logically the more 5797 * 'permanent' of the two), otherwise the PRIMARY one. 5798 * For now, use a hard-coded sanity limit of 1Mb of data. 5799 */ 5800 #if defined(FEAT_X11) && defined(FEAT_CLIPBOARD) 5801 void 5802 x11_export_final_selection() 5803 { 5804 Display *dpy; 5805 char_u *str = NULL; 5806 long_u len = 0; 5807 int motion_type = -1; 5808 5809 # ifdef FEAT_GUI 5810 if (gui.in_use) 5811 dpy = X_DISPLAY; 5812 else 5813 # endif 5814 # ifdef FEAT_XCLIPBOARD 5815 dpy = xterm_dpy; 5816 # else 5817 return; 5818 # endif 5819 5820 /* Get selection to export */ 5821 if (clip_plus.owned) 5822 motion_type = clip_convert_selection(&str, &len, &clip_plus); 5823 else if (clip_star.owned) 5824 motion_type = clip_convert_selection(&str, &len, &clip_star); 5825 5826 /* Check it's OK */ 5827 if (dpy != NULL && str != NULL && motion_type >= 0 5828 && len < 1024*1024 && len > 0) 5829 { 5830 #ifdef FEAT_MBYTE 5831 /* The CUT_BUFFER0 is supposed to always contain latin1. Convert from 5832 * 'enc' when it is a multi-byte encoding. When 'enc' is an 8-bit 5833 * encoding conversion usually doesn't work, so keep the text as-is. 5834 */ 5835 if (has_mbyte) 5836 { 5837 vimconv_T vc; 5838 5839 vc.vc_type = CONV_NONE; 5840 if (convert_setup(&vc, p_enc, (char_u *)"latin1") == OK) 5841 { 5842 int intlen = len; 5843 char_u *conv_str; 5844 5845 conv_str = string_convert(&vc, str, &intlen); 5846 len = intlen; 5847 if (conv_str != NULL) 5848 { 5849 vim_free(str); 5850 str = conv_str; 5851 } 5852 convert_setup(&vc, NULL, NULL); 5853 } 5854 } 5855 #endif 5856 XStoreBuffer(dpy, (char *)str, (int)len, 0); 5857 XFlush(dpy); 5858 } 5859 5860 vim_free(str); 5861 } 5862 #endif 5863 5864 void 5865 clip_free_selection(cbd) 5866 VimClipboard *cbd; 5867 { 5868 struct yankreg *y_ptr = y_current; 5869 5870 if (cbd == &clip_plus) 5871 y_current = &y_regs[PLUS_REGISTER]; 5872 else 5873 y_current = &y_regs[STAR_REGISTER]; 5874 free_yank_all(); 5875 y_current->y_size = 0; 5876 y_current = y_ptr; 5877 } 5878 5879 /* 5880 * Get the selected text and put it in the gui selection register '*' or '+'. 5881 */ 5882 void 5883 clip_get_selection(cbd) 5884 VimClipboard *cbd; 5885 { 5886 struct yankreg *old_y_previous, *old_y_current; 5887 pos_T old_cursor; 5888 #ifdef FEAT_VISUAL 5889 pos_T old_visual; 5890 int old_visual_mode; 5891 #endif 5892 colnr_T old_curswant; 5893 int old_set_curswant; 5894 pos_T old_op_start, old_op_end; 5895 oparg_T oa; 5896 cmdarg_T ca; 5897 5898 if (cbd->owned) 5899 { 5900 if ((cbd == &clip_plus && y_regs[PLUS_REGISTER].y_array != NULL) 5901 || (cbd == &clip_star && y_regs[STAR_REGISTER].y_array != NULL)) 5902 return; 5903 5904 /* Get the text between clip_star.start & clip_star.end */ 5905 old_y_previous = y_previous; 5906 old_y_current = y_current; 5907 old_cursor = curwin->w_cursor; 5908 old_curswant = curwin->w_curswant; 5909 old_set_curswant = curwin->w_set_curswant; 5910 old_op_start = curbuf->b_op_start; 5911 old_op_end = curbuf->b_op_end; 5912 #ifdef FEAT_VISUAL 5913 old_visual = VIsual; 5914 old_visual_mode = VIsual_mode; 5915 #endif 5916 clear_oparg(&oa); 5917 oa.regname = (cbd == &clip_plus ? '+' : '*'); 5918 oa.op_type = OP_YANK; 5919 vim_memset(&ca, 0, sizeof(ca)); 5920 ca.oap = &oa; 5921 ca.cmdchar = 'y'; 5922 ca.count1 = 1; 5923 ca.retval = CA_NO_ADJ_OP_END; 5924 do_pending_operator(&ca, 0, TRUE); 5925 y_previous = old_y_previous; 5926 y_current = old_y_current; 5927 curwin->w_cursor = old_cursor; 5928 changed_cline_bef_curs(); /* need to update w_virtcol et al */ 5929 curwin->w_curswant = old_curswant; 5930 curwin->w_set_curswant = old_set_curswant; 5931 curbuf->b_op_start = old_op_start; 5932 curbuf->b_op_end = old_op_end; 5933 #ifdef FEAT_VISUAL 5934 VIsual = old_visual; 5935 VIsual_mode = old_visual_mode; 5936 #endif 5937 } 5938 else 5939 { 5940 clip_free_selection(cbd); 5941 5942 /* Try to get selected text from another window */ 5943 clip_gen_request_selection(cbd); 5944 } 5945 } 5946 5947 /* 5948 * Convert from the GUI selection string into the '*'/'+' register. 5949 */ 5950 void 5951 clip_yank_selection(type, str, len, cbd) 5952 int type; 5953 char_u *str; 5954 long len; 5955 VimClipboard *cbd; 5956 { 5957 struct yankreg *y_ptr; 5958 5959 if (cbd == &clip_plus) 5960 y_ptr = &y_regs[PLUS_REGISTER]; 5961 else 5962 y_ptr = &y_regs[STAR_REGISTER]; 5963 5964 clip_free_selection(cbd); 5965 5966 str_to_reg(y_ptr, type, str, len, 0L); 5967 } 5968 5969 /* 5970 * Convert the '*'/'+' register into a GUI selection string returned in *str 5971 * with length *len. 5972 * Returns the motion type, or -1 for failure. 5973 */ 5974 int 5975 clip_convert_selection(str, len, cbd) 5976 char_u **str; 5977 long_u *len; 5978 VimClipboard *cbd; 5979 { 5980 char_u *p; 5981 int lnum; 5982 int i, j; 5983 int_u eolsize; 5984 struct yankreg *y_ptr; 5985 5986 if (cbd == &clip_plus) 5987 y_ptr = &y_regs[PLUS_REGISTER]; 5988 else 5989 y_ptr = &y_regs[STAR_REGISTER]; 5990 5991 #ifdef USE_CRNL 5992 eolsize = 2; 5993 #else 5994 eolsize = 1; 5995 #endif 5996 5997 *str = NULL; 5998 *len = 0; 5999 if (y_ptr->y_array == NULL) 6000 return -1; 6001 6002 for (i = 0; i < y_ptr->y_size; i++) 6003 *len += (long_u)STRLEN(y_ptr->y_array[i]) + eolsize; 6004 6005 /* 6006 * Don't want newline character at end of last line if we're in MCHAR mode. 6007 */ 6008 if (y_ptr->y_type == MCHAR && *len >= eolsize) 6009 *len -= eolsize; 6010 6011 p = *str = lalloc(*len + 1, TRUE); /* add one to avoid zero */ 6012 if (p == NULL) 6013 return -1; 6014 lnum = 0; 6015 for (i = 0, j = 0; i < (int)*len; i++, j++) 6016 { 6017 if (y_ptr->y_array[lnum][j] == '\n') 6018 p[i] = NUL; 6019 else if (y_ptr->y_array[lnum][j] == NUL) 6020 { 6021 #ifdef USE_CRNL 6022 p[i++] = '\r'; 6023 #endif 6024 #ifdef USE_CR 6025 p[i] = '\r'; 6026 #else 6027 p[i] = '\n'; 6028 #endif 6029 lnum++; 6030 j = -1; 6031 } 6032 else 6033 p[i] = y_ptr->y_array[lnum][j]; 6034 } 6035 return y_ptr->y_type; 6036 } 6037 6038 6039 # if defined(FEAT_VISUAL) || defined(FEAT_EVAL) 6040 /* 6041 * If we have written to a clipboard register, send the text to the clipboard. 6042 */ 6043 static void 6044 may_set_selection() 6045 { 6046 if (y_current == &(y_regs[STAR_REGISTER]) && clip_star.available) 6047 { 6048 clip_own_selection(&clip_star); 6049 clip_gen_set_selection(&clip_star); 6050 } 6051 else if (y_current == &(y_regs[PLUS_REGISTER]) && clip_plus.available) 6052 { 6053 clip_own_selection(&clip_plus); 6054 clip_gen_set_selection(&clip_plus); 6055 } 6056 } 6057 # endif 6058 6059 #endif /* FEAT_CLIPBOARD || PROTO */ 6060 6061 6062 #if defined(FEAT_DND) || defined(PROTO) 6063 /* 6064 * Replace the contents of the '~' register with str. 6065 */ 6066 void 6067 dnd_yank_drag_data(str, len) 6068 char_u *str; 6069 long len; 6070 { 6071 struct yankreg *curr; 6072 6073 curr = y_current; 6074 y_current = &y_regs[TILDE_REGISTER]; 6075 free_yank_all(); 6076 str_to_reg(y_current, MCHAR, str, len, 0L); 6077 y_current = curr; 6078 } 6079 #endif 6080 6081 6082 #if defined(FEAT_EVAL) || defined(PROTO) 6083 /* 6084 * Return the type of a register. 6085 * Used for getregtype() 6086 * Returns MAUTO for error. 6087 */ 6088 char_u 6089 get_reg_type(regname, reglen) 6090 int regname; 6091 long *reglen; 6092 { 6093 switch (regname) 6094 { 6095 case '%': /* file name */ 6096 case '#': /* alternate file name */ 6097 case '=': /* expression */ 6098 case ':': /* last command line */ 6099 case '/': /* last search-pattern */ 6100 case '.': /* last inserted text */ 6101 #ifdef FEAT_SEARCHPATH 6102 case Ctrl_F: /* Filename under cursor */ 6103 case Ctrl_P: /* Path under cursor, expand via "path" */ 6104 #endif 6105 case Ctrl_W: /* word under cursor */ 6106 case Ctrl_A: /* WORD (mnemonic All) under cursor */ 6107 case '_': /* black hole: always empty */ 6108 return MCHAR; 6109 } 6110 6111 #ifdef FEAT_CLIPBOARD 6112 regname = may_get_selection(regname); 6113 #endif 6114 6115 /* Should we check for a valid name? */ 6116 get_yank_register(regname, FALSE); 6117 6118 if (y_current->y_array != NULL) 6119 { 6120 #ifdef FEAT_VISUAL 6121 if (reglen != NULL && y_current->y_type == MBLOCK) 6122 *reglen = y_current->y_width; 6123 #endif 6124 return y_current->y_type; 6125 } 6126 return MAUTO; 6127 } 6128 6129 /* 6130 * Return the contents of a register as a single allocated string. 6131 * Used for "@r" in expressions and for getreg(). 6132 * Returns NULL for error. 6133 */ 6134 char_u * 6135 get_reg_contents(regname, allowexpr, expr_src) 6136 int regname; 6137 int allowexpr; /* allow "=" register */ 6138 int expr_src; /* get expression for "=" register */ 6139 { 6140 long i; 6141 char_u *retval; 6142 int allocated; 6143 long len; 6144 6145 /* Don't allow using an expression register inside an expression */ 6146 if (regname == '=') 6147 { 6148 if (allowexpr) 6149 { 6150 if (expr_src) 6151 return get_expr_line_src(); 6152 return get_expr_line(); 6153 } 6154 return NULL; 6155 } 6156 6157 if (regname == '@') /* "@@" is used for unnamed register */ 6158 regname = '"'; 6159 6160 /* check for valid regname */ 6161 if (regname != NUL && !valid_yank_reg(regname, FALSE)) 6162 return NULL; 6163 6164 #ifdef FEAT_CLIPBOARD 6165 regname = may_get_selection(regname); 6166 #endif 6167 6168 if (get_spec_reg(regname, &retval, &allocated, FALSE)) 6169 { 6170 if (retval == NULL) 6171 return NULL; 6172 if (!allocated) 6173 retval = vim_strsave(retval); 6174 return retval; 6175 } 6176 6177 get_yank_register(regname, FALSE); 6178 if (y_current->y_array == NULL) 6179 return NULL; 6180 6181 /* 6182 * Compute length of resulting string. 6183 */ 6184 len = 0; 6185 for (i = 0; i < y_current->y_size; ++i) 6186 { 6187 len += (long)STRLEN(y_current->y_array[i]); 6188 /* 6189 * Insert a newline between lines and after last line if 6190 * y_type is MLINE. 6191 */ 6192 if (y_current->y_type == MLINE || i < y_current->y_size - 1) 6193 ++len; 6194 } 6195 6196 retval = lalloc(len + 1, TRUE); 6197 6198 /* 6199 * Copy the lines of the yank register into the string. 6200 */ 6201 if (retval != NULL) 6202 { 6203 len = 0; 6204 for (i = 0; i < y_current->y_size; ++i) 6205 { 6206 STRCPY(retval + len, y_current->y_array[i]); 6207 len += (long)STRLEN(retval + len); 6208 6209 /* 6210 * Insert a NL between lines and after the last line if y_type is 6211 * MLINE. 6212 */ 6213 if (y_current->y_type == MLINE || i < y_current->y_size - 1) 6214 retval[len++] = '\n'; 6215 } 6216 retval[len] = NUL; 6217 } 6218 6219 return retval; 6220 } 6221 6222 /* 6223 * Store string "str" in register "name". 6224 * "maxlen" is the maximum number of bytes to use, -1 for all bytes. 6225 * If "must_append" is TRUE, always append to the register. Otherwise append 6226 * if "name" is an uppercase letter. 6227 * Note: "maxlen" and "must_append" don't work for the "/" register. 6228 * Careful: 'str' is modified, you may have to use a copy! 6229 * If "str" ends in '\n' or '\r', use linewise, otherwise use characterwise. 6230 */ 6231 void 6232 write_reg_contents(name, str, maxlen, must_append) 6233 int name; 6234 char_u *str; 6235 int maxlen; 6236 int must_append; 6237 { 6238 write_reg_contents_ex(name, str, maxlen, must_append, MAUTO, 0L); 6239 } 6240 6241 void 6242 write_reg_contents_ex(name, str, maxlen, must_append, yank_type, block_len) 6243 int name; 6244 char_u *str; 6245 int maxlen; 6246 int must_append; 6247 int yank_type; 6248 long block_len; 6249 { 6250 struct yankreg *old_y_previous, *old_y_current; 6251 long len; 6252 6253 if (maxlen >= 0) 6254 len = maxlen; 6255 else 6256 len = (long)STRLEN(str); 6257 6258 /* Special case: '/' search pattern */ 6259 if (name == '/') 6260 { 6261 set_last_search_pat(str, RE_SEARCH, TRUE, TRUE); 6262 return; 6263 } 6264 6265 #ifdef FEAT_EVAL 6266 if (name == '=') 6267 { 6268 char_u *p, *s; 6269 6270 p = vim_strnsave(str, (int)len); 6271 if (p == NULL) 6272 return; 6273 if (must_append) 6274 { 6275 s = concat_str(get_expr_line_src(), p); 6276 vim_free(p); 6277 p = s; 6278 6279 } 6280 set_expr_line(p); 6281 return; 6282 } 6283 #endif 6284 6285 if (!valid_yank_reg(name, TRUE)) /* check for valid reg name */ 6286 { 6287 emsg_invreg(name); 6288 return; 6289 } 6290 6291 if (name == '_') /* black hole: nothing to do */ 6292 return; 6293 6294 /* Don't want to change the current (unnamed) register */ 6295 old_y_previous = y_previous; 6296 old_y_current = y_current; 6297 6298 get_yank_register(name, TRUE); 6299 if (!y_append && !must_append) 6300 free_yank_all(); 6301 #ifndef FEAT_VISUAL 6302 /* Just in case - make sure we don't use MBLOCK */ 6303 if (yank_type == MBLOCK) 6304 yank_type = MAUTO; 6305 #endif 6306 str_to_reg(y_current, yank_type, str, len, block_len); 6307 6308 # ifdef FEAT_CLIPBOARD 6309 /* Send text of clipboard register to the clipboard. */ 6310 may_set_selection(); 6311 # endif 6312 6313 /* ':let @" = "val"' should change the meaning of the "" register */ 6314 if (name != '"') 6315 y_previous = old_y_previous; 6316 y_current = old_y_current; 6317 } 6318 #endif /* FEAT_EVAL */ 6319 6320 #if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL) 6321 /* 6322 * Put a string into a register. When the register is not empty, the string 6323 * is appended. 6324 */ 6325 static void 6326 str_to_reg(y_ptr, yank_type, str, len, blocklen) 6327 struct yankreg *y_ptr; /* pointer to yank register */ 6328 int yank_type; /* MCHAR, MLINE, MBLOCK, MAUTO */ 6329 char_u *str; /* string to put in register */ 6330 long len; /* length of string */ 6331 long blocklen; /* width of Visual block */ 6332 { 6333 int type; /* MCHAR, MLINE or MBLOCK */ 6334 int lnum; 6335 long start; 6336 long i; 6337 int extra; 6338 int newlines; /* number of lines added */ 6339 int extraline = 0; /* extra line at the end */ 6340 int append = FALSE; /* append to last line in register */ 6341 char_u *s; 6342 char_u **pp; 6343 #ifdef FEAT_VISUAL 6344 long maxlen; 6345 #endif 6346 6347 if (y_ptr->y_array == NULL) /* NULL means empty register */ 6348 y_ptr->y_size = 0; 6349 6350 if (yank_type == MAUTO) 6351 type = ((len > 0 && (str[len - 1] == NL || str[len - 1] == CAR)) 6352 ? MLINE : MCHAR); 6353 else 6354 type = yank_type; 6355 6356 /* 6357 * Count the number of lines within the string 6358 */ 6359 newlines = 0; 6360 for (i = 0; i < len; i++) 6361 if (str[i] == '\n') 6362 ++newlines; 6363 if (type == MCHAR || len == 0 || str[len - 1] != '\n') 6364 { 6365 extraline = 1; 6366 ++newlines; /* count extra newline at the end */ 6367 } 6368 if (y_ptr->y_size > 0 && y_ptr->y_type == MCHAR) 6369 { 6370 append = TRUE; 6371 --newlines; /* uncount newline when appending first line */ 6372 } 6373 6374 /* 6375 * Allocate an array to hold the pointers to the new register lines. 6376 * If the register was not empty, move the existing lines to the new array. 6377 */ 6378 pp = (char_u **)lalloc_clear((y_ptr->y_size + newlines) 6379 * sizeof(char_u *), TRUE); 6380 if (pp == NULL) /* out of memory */ 6381 return; 6382 for (lnum = 0; lnum < y_ptr->y_size; ++lnum) 6383 pp[lnum] = y_ptr->y_array[lnum]; 6384 vim_free(y_ptr->y_array); 6385 y_ptr->y_array = pp; 6386 #ifdef FEAT_VISUAL 6387 maxlen = 0; 6388 #endif 6389 6390 /* 6391 * Find the end of each line and save it into the array. 6392 */ 6393 for (start = 0; start < len + extraline; start += i + 1) 6394 { 6395 for (i = start; i < len; ++i) /* find the end of the line */ 6396 if (str[i] == '\n') 6397 break; 6398 i -= start; /* i is now length of line */ 6399 #ifdef FEAT_VISUAL 6400 if (i > maxlen) 6401 maxlen = i; 6402 #endif 6403 if (append) 6404 { 6405 --lnum; 6406 extra = (int)STRLEN(y_ptr->y_array[lnum]); 6407 } 6408 else 6409 extra = 0; 6410 s = alloc((unsigned)(i + extra + 1)); 6411 if (s == NULL) 6412 break; 6413 if (extra) 6414 mch_memmove(s, y_ptr->y_array[lnum], (size_t)extra); 6415 if (append) 6416 vim_free(y_ptr->y_array[lnum]); 6417 if (i) 6418 mch_memmove(s + extra, str + start, (size_t)i); 6419 extra += i; 6420 s[extra] = NUL; 6421 y_ptr->y_array[lnum++] = s; 6422 while (--extra >= 0) 6423 { 6424 if (*s == NUL) 6425 *s = '\n'; /* replace NUL with newline */ 6426 ++s; 6427 } 6428 append = FALSE; /* only first line is appended */ 6429 } 6430 y_ptr->y_type = type; 6431 y_ptr->y_size = lnum; 6432 # ifdef FEAT_VISUAL 6433 if (type == MBLOCK) 6434 y_ptr->y_width = (blocklen < 0 ? maxlen - 1 : blocklen); 6435 else 6436 y_ptr->y_width = 0; 6437 # endif 6438 } 6439 #endif /* FEAT_CLIPBOARD || FEAT_EVAL || PROTO */ 6440 6441 void 6442 clear_oparg(oap) 6443 oparg_T *oap; 6444 { 6445 vim_memset(oap, 0, sizeof(oparg_T)); 6446 } 6447 6448 static long line_count_info __ARGS((char_u *line, long *wc, long *cc, long limit, int eol_size)); 6449 6450 /* 6451 * Count the number of bytes, characters and "words" in a line. 6452 * 6453 * "Words" are counted by looking for boundaries between non-space and 6454 * space characters. (it seems to produce results that match 'wc'.) 6455 * 6456 * Return value is byte count; word count for the line is added to "*wc". 6457 * Char count is added to "*cc". 6458 * 6459 * The function will only examine the first "limit" characters in the 6460 * line, stopping if it encounters an end-of-line (NUL byte). In that 6461 * case, eol_size will be added to the character count to account for 6462 * the size of the EOL character. 6463 */ 6464 static long 6465 line_count_info(line, wc, cc, limit, eol_size) 6466 char_u *line; 6467 long *wc; 6468 long *cc; 6469 long limit; 6470 int eol_size; 6471 { 6472 long i; 6473 long words = 0; 6474 long chars = 0; 6475 int is_word = 0; 6476 6477 for (i = 0; i < limit && line[i] != NUL; ) 6478 { 6479 if (is_word) 6480 { 6481 if (vim_isspace(line[i])) 6482 { 6483 words++; 6484 is_word = 0; 6485 } 6486 } 6487 else if (!vim_isspace(line[i])) 6488 is_word = 1; 6489 ++chars; 6490 #ifdef FEAT_MBYTE 6491 i += (*mb_ptr2len)(line + i); 6492 #else 6493 ++i; 6494 #endif 6495 } 6496 6497 if (is_word) 6498 words++; 6499 *wc += words; 6500 6501 /* Add eol_size if the end of line was reached before hitting limit. */ 6502 if (i < limit && line[i] == NUL) 6503 { 6504 i += eol_size; 6505 chars += eol_size; 6506 } 6507 *cc += chars; 6508 return i; 6509 } 6510 6511 /* 6512 * Give some info about the position of the cursor (for "g CTRL-G"). 6513 * In Visual mode, give some info about the selected region. (In this case, 6514 * the *_count_cursor variables store running totals for the selection.) 6515 */ 6516 void 6517 cursor_pos_info() 6518 { 6519 char_u *p; 6520 char_u buf1[50]; 6521 char_u buf2[40]; 6522 linenr_T lnum; 6523 long byte_count = 0; 6524 long byte_count_cursor = 0; 6525 long char_count = 0; 6526 long char_count_cursor = 0; 6527 long word_count = 0; 6528 long word_count_cursor = 0; 6529 int eol_size; 6530 long last_check = 100000L; 6531 #ifdef FEAT_VISUAL 6532 long line_count_selected = 0; 6533 pos_T min_pos, max_pos; 6534 oparg_T oparg; 6535 struct block_def bd; 6536 #endif 6537 6538 /* 6539 * Compute the length of the file in characters. 6540 */ 6541 if (curbuf->b_ml.ml_flags & ML_EMPTY) 6542 { 6543 MSG(_(no_lines_msg)); 6544 } 6545 else 6546 { 6547 if (get_fileformat(curbuf) == EOL_DOS) 6548 eol_size = 2; 6549 else 6550 eol_size = 1; 6551 6552 #ifdef FEAT_VISUAL 6553 if (VIsual_active) 6554 { 6555 if (lt(VIsual, curwin->w_cursor)) 6556 { 6557 min_pos = VIsual; 6558 max_pos = curwin->w_cursor; 6559 } 6560 else 6561 { 6562 min_pos = curwin->w_cursor; 6563 max_pos = VIsual; 6564 } 6565 if (*p_sel == 'e' && max_pos.col > 0) 6566 --max_pos.col; 6567 6568 if (VIsual_mode == Ctrl_V) 6569 { 6570 #ifdef FEAT_LINEBREAK 6571 char_u * saved_sbr = p_sbr; 6572 6573 /* Make 'sbr' empty for a moment to get the correct size. */ 6574 p_sbr = empty_option; 6575 #endif 6576 oparg.is_VIsual = 1; 6577 oparg.block_mode = TRUE; 6578 oparg.op_type = OP_NOP; 6579 getvcols(curwin, &min_pos, &max_pos, 6580 &oparg.start_vcol, &oparg.end_vcol); 6581 #ifdef FEAT_LINEBREAK 6582 p_sbr = saved_sbr; 6583 #endif 6584 if (curwin->w_curswant == MAXCOL) 6585 oparg.end_vcol = MAXCOL; 6586 /* Swap the start, end vcol if needed */ 6587 if (oparg.end_vcol < oparg.start_vcol) 6588 { 6589 oparg.end_vcol += oparg.start_vcol; 6590 oparg.start_vcol = oparg.end_vcol - oparg.start_vcol; 6591 oparg.end_vcol -= oparg.start_vcol; 6592 } 6593 } 6594 line_count_selected = max_pos.lnum - min_pos.lnum + 1; 6595 } 6596 #endif 6597 6598 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) 6599 { 6600 /* Check for a CTRL-C every 100000 characters. */ 6601 if (byte_count > last_check) 6602 { 6603 ui_breakcheck(); 6604 if (got_int) 6605 return; 6606 last_check = byte_count + 100000L; 6607 } 6608 6609 #ifdef FEAT_VISUAL 6610 /* Do extra processing for VIsual mode. */ 6611 if (VIsual_active 6612 && lnum >= min_pos.lnum && lnum <= max_pos.lnum) 6613 { 6614 char_u *s = NULL; 6615 long len = 0L; 6616 6617 switch (VIsual_mode) 6618 { 6619 case Ctrl_V: 6620 # ifdef FEAT_VIRTUALEDIT 6621 virtual_op = virtual_active(); 6622 # endif 6623 block_prep(&oparg, &bd, lnum, 0); 6624 # ifdef FEAT_VIRTUALEDIT 6625 virtual_op = MAYBE; 6626 # endif 6627 s = bd.textstart; 6628 len = (long)bd.textlen; 6629 break; 6630 case 'V': 6631 s = ml_get(lnum); 6632 len = MAXCOL; 6633 break; 6634 case 'v': 6635 { 6636 colnr_T start_col = (lnum == min_pos.lnum) 6637 ? min_pos.col : 0; 6638 colnr_T end_col = (lnum == max_pos.lnum) 6639 ? max_pos.col - start_col + 1 : MAXCOL; 6640 6641 s = ml_get(lnum) + start_col; 6642 len = end_col; 6643 } 6644 break; 6645 } 6646 if (s != NULL) 6647 { 6648 byte_count_cursor += line_count_info(s, &word_count_cursor, 6649 &char_count_cursor, len, eol_size); 6650 if (lnum == curbuf->b_ml.ml_line_count 6651 && !curbuf->b_p_eol 6652 && curbuf->b_p_bin 6653 && (long)STRLEN(s) < len) 6654 byte_count_cursor -= eol_size; 6655 } 6656 } 6657 else 6658 #endif 6659 { 6660 /* In non-visual mode, check for the line the cursor is on */ 6661 if (lnum == curwin->w_cursor.lnum) 6662 { 6663 word_count_cursor += word_count; 6664 char_count_cursor += char_count; 6665 byte_count_cursor = byte_count + 6666 line_count_info(ml_get(lnum), 6667 &word_count_cursor, &char_count_cursor, 6668 (long)(curwin->w_cursor.col + 1), eol_size); 6669 } 6670 } 6671 /* Add to the running totals */ 6672 byte_count += line_count_info(ml_get(lnum), &word_count, 6673 &char_count, (long)MAXCOL, eol_size); 6674 } 6675 6676 /* Correction for when last line doesn't have an EOL. */ 6677 if (!curbuf->b_p_eol && curbuf->b_p_bin) 6678 byte_count -= eol_size; 6679 6680 #ifdef FEAT_VISUAL 6681 if (VIsual_active) 6682 { 6683 if (VIsual_mode == Ctrl_V && curwin->w_curswant < MAXCOL) 6684 { 6685 getvcols(curwin, &min_pos, &max_pos, &min_pos.col, 6686 &max_pos.col); 6687 vim_snprintf((char *)buf1, sizeof(buf1), _("%ld Cols; "), 6688 (long)(oparg.end_vcol - oparg.start_vcol + 1)); 6689 } 6690 else 6691 buf1[0] = NUL; 6692 6693 if (char_count_cursor == byte_count_cursor 6694 && char_count == byte_count) 6695 vim_snprintf((char *)IObuff, IOSIZE, 6696 _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Bytes"), 6697 buf1, line_count_selected, 6698 (long)curbuf->b_ml.ml_line_count, 6699 word_count_cursor, word_count, 6700 byte_count_cursor, byte_count); 6701 else 6702 vim_snprintf((char *)IObuff, IOSIZE, 6703 _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Chars; %ld of %ld Bytes"), 6704 buf1, line_count_selected, 6705 (long)curbuf->b_ml.ml_line_count, 6706 word_count_cursor, word_count, 6707 char_count_cursor, char_count, 6708 byte_count_cursor, byte_count); 6709 } 6710 else 6711 #endif 6712 { 6713 p = ml_get_curline(); 6714 validate_virtcol(); 6715 col_print(buf1, sizeof(buf1), (int)curwin->w_cursor.col + 1, 6716 (int)curwin->w_virtcol + 1); 6717 col_print(buf2, sizeof(buf2), (int)STRLEN(p), linetabsize(p)); 6718 6719 if (char_count_cursor == byte_count_cursor 6720 && char_count == byte_count) 6721 vim_snprintf((char *)IObuff, IOSIZE, 6722 _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Byte %ld of %ld"), 6723 (char *)buf1, (char *)buf2, 6724 (long)curwin->w_cursor.lnum, 6725 (long)curbuf->b_ml.ml_line_count, 6726 word_count_cursor, word_count, 6727 byte_count_cursor, byte_count); 6728 else 6729 vim_snprintf((char *)IObuff, IOSIZE, 6730 _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Char %ld of %ld; Byte %ld of %ld"), 6731 (char *)buf1, (char *)buf2, 6732 (long)curwin->w_cursor.lnum, 6733 (long)curbuf->b_ml.ml_line_count, 6734 word_count_cursor, word_count, 6735 char_count_cursor, char_count, 6736 byte_count_cursor, byte_count); 6737 } 6738 6739 #ifdef FEAT_MBYTE 6740 byte_count = bomb_size(); 6741 if (byte_count > 0) 6742 sprintf((char *)IObuff + STRLEN(IObuff), _("(+%ld for BOM)"), 6743 byte_count); 6744 #endif 6745 /* Don't shorten this message, the user asked for it. */ 6746 p = p_shm; 6747 p_shm = (char_u *)""; 6748 msg(IObuff); 6749 p_shm = p; 6750 } 6751 } 6752