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Merged from the latest developing branch.
[MacVim.git] / src / ops.c
blobd79d75d52bfc15609a620d5a7a69e622ac67c492
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 of first char */
76 int endspaces; /* 'extra' cols of first char */
77 int textlen; /* chars in block */
78 char_u *textstart; /* pointer to 1st char in block */
79 colnr_T textcol; /* cols of chars (at least part.) 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 #ifdef FEAT_VISUAL
116 static void block_prep __ARGS((oparg_T *oap, struct block_def *, linenr_T, int));
117 #endif
118 #if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
119 static void str_to_reg __ARGS((struct yankreg *y_ptr, int type, char_u *str, long len, long blocklen));
120 #endif
121 static int ends_in_white __ARGS((linenr_T lnum));
122 #ifdef FEAT_COMMENTS
123 static int same_leader __ARGS((linenr_T lnum, int, char_u *, int, char_u *));
124 static int fmt_check_par __ARGS((linenr_T, int *, char_u **, int do_comments));
125 #else
126 static int fmt_check_par __ARGS((linenr_T));
127 #endif
128
129 /*
130 * The names of operators.
131 * IMPORTANT: Index must correspond with defines in vim.h!!!
132 * The third field indicates whether the operator always works on lines.
133 */
134 static char opchars[][3] =
135 {
136 {NUL, NUL, FALSE}, /* OP_NOP */
137 {'d', NUL, FALSE}, /* OP_DELETE */
138 {'y', NUL, FALSE}, /* OP_YANK */
139 {'c', NUL, FALSE}, /* OP_CHANGE */
140 {'<', NUL, TRUE}, /* OP_LSHIFT */
141 {'>', NUL, TRUE}, /* OP_RSHIFT */
142 {'!', NUL, TRUE}, /* OP_FILTER */
143 {'g', '~', FALSE}, /* OP_TILDE */
144 {'=', NUL, TRUE}, /* OP_INDENT */
145 {'g', 'q', TRUE}, /* OP_FORMAT */
146 {':', NUL, TRUE}, /* OP_COLON */
147 {'g', 'U', FALSE}, /* OP_UPPER */
148 {'g', 'u', FALSE}, /* OP_LOWER */
149 {'J', NUL, TRUE}, /* DO_JOIN */
150 {'g', 'J', TRUE}, /* DO_JOIN_NS */
151 {'g', '?', FALSE}, /* OP_ROT13 */
152 {'r', NUL, FALSE}, /* OP_REPLACE */
153 {'I', NUL, FALSE}, /* OP_INSERT */
154 {'A', NUL, FALSE}, /* OP_APPEND */
155 {'z', 'f', TRUE}, /* OP_FOLD */
156 {'z', 'o', TRUE}, /* OP_FOLDOPEN */
157 {'z', 'O', TRUE}, /* OP_FOLDOPENREC */
158 {'z', 'c', TRUE}, /* OP_FOLDCLOSE */
159 {'z', 'C', TRUE}, /* OP_FOLDCLOSEREC */
160 {'z', 'd', TRUE}, /* OP_FOLDDEL */
161 {'z', 'D', TRUE}, /* OP_FOLDDELREC */
162 {'g', 'w', TRUE}, /* OP_FORMAT2 */
163 {'g', '@', FALSE}, /* OP_FUNCTION */
164 };
165
166 /*
167 * Translate a command name into an operator type.
168 * Must only be called with a valid operator name!
169 */
170 int
171 get_op_type(char1, char2)
172 int char1;
173 int char2;
174 {
175 int i;
176
177 if (char1 == 'r') /* ignore second character */
178 return OP_REPLACE;
179 if (char1 == '~') /* when tilde is an operator */
180 return OP_TILDE;
181 for (i = 0; ; ++i)
182 if (opchars[i][0] == char1 && opchars[i][1] == char2)
183 break;
184 return i;
185 }
186
187 #if defined(FEAT_VISUAL) || defined(PROTO)
188 /*
189 * Return TRUE if operator "op" always works on whole lines.
190 */
191 int
192 op_on_lines(op)
193 int op;
194 {
195 return opchars[op][2];
196 }
197 #endif
198
199 /*
200 * Get first operator command character.
201 * Returns 'g' or 'z' if there is another command character.
202 */
203 int
204 get_op_char(optype)
205 int optype;
206 {
207 return opchars[optype][0];
208 }
209
210 /*
211 * Get second operator command character.
212 */
213 int
214 get_extra_op_char(optype)
215 int optype;
216 {
217 return opchars[optype][1];
218 }
219
220 /*
221 * op_shift - handle a shift operation
222 */
223 void
224 op_shift(oap, curs_top, amount)
225 oparg_T *oap;
226 int curs_top;
227 int amount;
228 {
229 long i;
230 int first_char;
231 char_u *s;
232 #ifdef FEAT_VISUAL
233 int block_col = 0;
234 #endif
235
236 if (u_save((linenr_T)(oap->start.lnum - 1),
237 (linenr_T)(oap->end.lnum + 1)) == FAIL)
238 return;
239
240 #ifdef FEAT_VISUAL
241 if (oap->block_mode)
242 block_col = curwin->w_cursor.col;
243 #endif
244
245 for (i = oap->line_count; --i >= 0; )
246 {
247 first_char = *ml_get_curline();
248 if (first_char == NUL) /* empty line */
249 curwin->w_cursor.col = 0;
250 #ifdef FEAT_VISUALEXTRA
251 else if (oap->block_mode)
252 shift_block(oap, amount);
253 #endif
254 else
255 /* Move the line right if it doesn't start with '#', 'smartindent'
256 * isn't set or 'cindent' isn't set or '#' isn't in 'cino'. */
257 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
258 if (first_char != '#' || !preprocs_left())
259 #endif
260 {
261 shift_line(oap->op_type == OP_LSHIFT, p_sr, amount, FALSE);
262 }
263 ++curwin->w_cursor.lnum;
264 }
265
266 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L);
267
268 #ifdef FEAT_VISUAL
269 if (oap->block_mode)
270 {
271 curwin->w_cursor.lnum = oap->start.lnum;
272 curwin->w_cursor.col = block_col;
273 }
274 else
275 #endif
276 if (curs_top) /* put cursor on first line, for ">>" */
277 {
278 curwin->w_cursor.lnum = oap->start.lnum;
279 beginline(BL_SOL | BL_FIX); /* shift_line() may have set cursor.col */
280 }
281 else
282 --curwin->w_cursor.lnum; /* put cursor on last line, for ":>" */
283
284 if (oap->line_count > p_report)
285 {
286 if (oap->op_type == OP_RSHIFT)
287 s = (char_u *)">";
288 else
289 s = (char_u *)"<";
290 if (oap->line_count == 1)
291 {
292 if (amount == 1)
293 sprintf((char *)IObuff, _("1 line %sed 1 time"), s);
294 else
295 sprintf((char *)IObuff, _("1 line %sed %d times"), s, amount);
296 }
297 else
298 {
299 if (amount == 1)
300 sprintf((char *)IObuff, _("%ld lines %sed 1 time"),
301 oap->line_count, s);
302 else
303 sprintf((char *)IObuff, _("%ld lines %sed %d times"),
304 oap->line_count, s, amount);
305 }
306 msg(IObuff);
307 }
308
309 /*
310 * Set "'[" and "']" marks.
311 */
312 curbuf->b_op_start = oap->start;
313 curbuf->b_op_end.lnum = oap->end.lnum;
314 curbuf->b_op_end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
315 if (curbuf->b_op_end.col > 0)
316 --curbuf->b_op_end.col;
317 }
318
319 /*
320 * shift the current line one shiftwidth left (if left != 0) or right
321 * leaves cursor on first blank in the line
322 */
323 void
324 shift_line(left, round, amount, call_changed_bytes)
325 int left;
326 int round;
327 int amount;
328 int call_changed_bytes; /* call changed_bytes() */
329 {
330 int count;
331 int i, j;
332 int p_sw = (int)curbuf->b_p_sw;
333
334 count = get_indent(); /* get current indent */
335
336 if (round) /* round off indent */
337 {
338 i = count / p_sw; /* number of p_sw rounded down */
339 j = count % p_sw; /* extra spaces */
340 if (j && left) /* first remove extra spaces */
341 --amount;
342 if (left)
343 {
344 i -= amount;
345 if (i < 0)
346 i = 0;
347 }
348 else
349 i += amount;
350 count = i * p_sw;
351 }
352 else /* original vi indent */
353 {
354 if (left)
355 {
356 count -= p_sw * amount;
357 if (count < 0)
358 count = 0;
359 }
360 else
361 count += p_sw * amount;
362 }
363
364 /* Set new indent */
365 #ifdef FEAT_VREPLACE
366 if (State & VREPLACE_FLAG)
367 change_indent(INDENT_SET, count, FALSE, NUL, call_changed_bytes);
368 else
369 #endif
370 (void)set_indent(count, call_changed_bytes ? SIN_CHANGED : 0);
371 }
372
373 #if defined(FEAT_VISUALEXTRA) || defined(PROTO)
374 /*
375 * Shift one line of the current block one shiftwidth right or left.
376 * Leaves cursor on first character in block.
377 */
378 static void
379 shift_block(oap, amount)
380 oparg_T *oap;
381 int amount;
382 {
383 int left = (oap->op_type == OP_LSHIFT);
384 int oldstate = State;
385 int total, split;
386 char_u *newp, *oldp, *midp, *ptr;
387 int oldcol = curwin->w_cursor.col;
388 int p_sw = (int)curbuf->b_p_sw;
389 int p_ts = (int)curbuf->b_p_ts;
390 struct block_def bd;
391 int internal = 0;
392 int incr;
393 colnr_T vcol, col = 0, ws_vcol;
394 int i = 0, j = 0;
395 int len;
396
397 #ifdef FEAT_RIGHTLEFT
398 int old_p_ri = p_ri;
399
400 p_ri = 0; /* don't want revins in ident */
401 #endif
402
403 State = INSERT; /* don't want REPLACE for State */
404 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE);
405 if (bd.is_short)
406 return;
407
408 /* total is number of screen columns to be inserted/removed */
409 total = amount * p_sw;
410 oldp = ml_get_curline();
411
412 if (!left)
413 {
414 /*
415 * 1. Get start vcol
416 * 2. Total ws vcols
417 * 3. Divvy into TABs & spp
418 * 4. Construct new string
419 */
420 total += bd.pre_whitesp; /* all virtual WS upto & incl a split TAB */
421 ws_vcol = bd.start_vcol - bd.pre_whitesp;
422 if (bd.startspaces)
423 {
424 #ifdef FEAT_MBYTE
425 if (has_mbyte)
426 bd.textstart += (*mb_ptr2len)(bd.textstart);
427 #endif
428 ++bd.textstart;
429 }
430 for ( ; vim_iswhite(*bd.textstart); )
431 {
432 incr = lbr_chartabsize_adv(&bd.textstart, (colnr_T)(bd.start_vcol));
433 total += incr;
434 bd.start_vcol += incr;
435 }
436 /* OK, now total=all the VWS reqd, and textstart points at the 1st
437 * non-ws char in the block. */
438 if (!curbuf->b_p_et)
439 i = ((ws_vcol % p_ts) + total) / p_ts; /* number of tabs */
440 if (i)
441 j = ((ws_vcol % p_ts) + total) % p_ts; /* number of spp */
442 else
443 j = total;
444 /* if we're splitting a TAB, allow for it */
445 bd.textcol -= bd.pre_whitesp_c - (bd.startspaces != 0);
446 len = (int)STRLEN(bd.textstart) + 1;
447 newp = alloc_check((unsigned)(bd.textcol + i + j + len));
448 if (newp == NULL)
449 return;
450 vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + len));
451 mch_memmove(newp, oldp, (size_t)bd.textcol);
452 copy_chars(newp + bd.textcol, (size_t)i, TAB);
453 copy_spaces(newp + bd.textcol + i, (size_t)j);
454 /* the end */
455 mch_memmove(newp + bd.textcol + i + j, bd.textstart, (size_t)len);
456 }
457 else /* left */
458 {
459 vcol = oap->start_vcol;
460 /* walk vcol past ws to be removed */
461 for (midp = oldp + bd.textcol;
462 vcol < (oap->start_vcol + total) && vim_iswhite(*midp); )
463 {
464 incr = lbr_chartabsize_adv(&midp, (colnr_T)vcol);
465 vcol += incr;
466 }
467 /* internal is the block-internal ws replacing a split TAB */
468 if (vcol > (oap->start_vcol + total))
469 {
470 /* we have to split the TAB *(midp-1) */
471 internal = vcol - (oap->start_vcol + total);
472 }
473 /* if 'expandtab' is not set, use TABs */
474
475 split = bd.startspaces + internal;
476 if (split > 0)
477 {
478 if (!curbuf->b_p_et)
479 {
480 for (ptr = oldp, col = 0; ptr < oldp+bd.textcol; )
481 col += lbr_chartabsize_adv(&ptr, (colnr_T)col);
482
483 /* col+1 now equals the start col of the first char of the
484 * block (may be < oap.start_vcol if we're splitting a TAB) */
485 i = ((col % p_ts) + split) / p_ts; /* number of tabs */
486 }
487 if (i)
488 j = ((col % p_ts) + split) % p_ts; /* number of spp */
489 else
490 j = split;
491 }
492
493 newp = alloc_check(bd.textcol + i + j + (unsigned)STRLEN(midp) + 1);
494 if (newp == NULL)
495 return;
496 vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + STRLEN(midp) + 1));
497
498 /* copy first part we want to keep */
499 mch_memmove(newp, oldp, (size_t)bd.textcol);
500 /* Now copy any TABS and spp to ensure correct alignment! */
501 while (vim_iswhite(*midp))
502 {
503 if (*midp == TAB)
504 i++;
505 else /*space */
506 j++;
507 midp++;
508 }
509 /* We might have an extra TAB worth of spp now! */
510 if (j / p_ts && !curbuf->b_p_et)
511 {
512 i++;
513 j -= p_ts;
514 }
515 copy_chars(newp + bd.textcol, (size_t)i, TAB);
516 copy_spaces(newp + bd.textcol + i, (size_t)j);
517
518 /* the end */
519 STRMOVE(newp + STRLEN(newp), midp);
520 }
521 /* replace the line */
522 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
523 changed_bytes(curwin->w_cursor.lnum, (colnr_T)bd.textcol);
524 State = oldstate;
525 curwin->w_cursor.col = oldcol;
526 #ifdef FEAT_RIGHTLEFT
527 p_ri = old_p_ri;
528 #endif
529 }
530 #endif
531
532 #ifdef FEAT_VISUALEXTRA
533 /*
534 * Insert string "s" (b_insert ? before : after) block :AKelly
535 * Caller must prepare for undo.
536 */
537 static void
538 block_insert(oap, s, b_insert, bdp)
539 oparg_T *oap;
540 char_u *s;
541 int b_insert;
542 struct block_def *bdp;
543 {
544 int p_ts;
545 int count = 0; /* extra spaces to replace a cut TAB */
546 int spaces = 0; /* non-zero if cutting a TAB */
547 colnr_T offset; /* pointer along new line */
548 unsigned s_len; /* STRLEN(s) */
549 char_u *newp, *oldp; /* new, old lines */
550 linenr_T lnum; /* loop var */
551 int oldstate = State;
552
553 State = INSERT; /* don't want REPLACE for State */
554 s_len = (unsigned)STRLEN(s);
555
556 for (lnum = oap->start.lnum + 1; lnum <= oap->end.lnum; lnum++)
557 {
558 block_prep(oap, bdp, lnum, TRUE);
559 if (bdp->is_short && b_insert)
560 continue; /* OP_INSERT, line ends before block start */
561
562 oldp = ml_get(lnum);
563
564 if (b_insert)
565 {
566 p_ts = bdp->start_char_vcols;
567 spaces = bdp->startspaces;
568 if (spaces != 0)
569 count = p_ts - 1; /* we're cutting a TAB */
570 offset = bdp->textcol;
571 }
572 else /* append */
573 {
574 p_ts = bdp->end_char_vcols;
575 if (!bdp->is_short) /* spaces = padding after block */
576 {
577 spaces = (bdp->endspaces ? p_ts - bdp->endspaces : 0);
578 if (spaces != 0)
579 count = p_ts - 1; /* we're cutting a TAB */
580 offset = bdp->textcol + bdp->textlen - (spaces != 0);
581 }
582 else /* spaces = padding to block edge */
583 {
584 /* if $ used, just append to EOL (ie spaces==0) */
585 if (!bdp->is_MAX)
586 spaces = (oap->end_vcol - bdp->end_vcol) + 1;
587 count = spaces;
588 offset = bdp->textcol + bdp->textlen;
589 }
590 }
591
592 newp = alloc_check((unsigned)(STRLEN(oldp)) + s_len + count + 1);
593 if (newp == NULL)
594 continue;
595
596 /* copy up to shifted part */
597 mch_memmove(newp, oldp, (size_t)(offset));
598 oldp += offset;
599
600 /* insert pre-padding */
601 copy_spaces(newp + offset, (size_t)spaces);
602
603 /* copy the new text */
604 mch_memmove(newp + offset + spaces, s, (size_t)s_len);
605 offset += s_len;
606
607 if (spaces && !bdp->is_short)
608 {
609 /* insert post-padding */
610 copy_spaces(newp + offset + spaces, (size_t)(p_ts - spaces));
611 /* We're splitting a TAB, don't copy it. */
612 oldp++;
613 /* We allowed for that TAB, remember this now */
614 count++;
615 }
616
617 if (spaces > 0)
618 offset += count;
619 STRMOVE(newp + offset, oldp);
620
621 ml_replace(lnum, newp, FALSE);
622
623 if (lnum == oap->end.lnum)
624 {
625 /* Set "']" mark to the end of the block instead of the end of
626 * the insert in the first line. */
627 curbuf->b_op_end.lnum = oap->end.lnum;
628 curbuf->b_op_end.col = offset;
629 }
630 } /* for all lnum */
631
632 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L);
633
634 State = oldstate;
635 }
636 #endif
637
638 #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(PROTO)
639 /*
640 * op_reindent - handle reindenting a block of lines.
641 */
642 void
643 op_reindent(oap, how)
644 oparg_T *oap;
645 int (*how) __ARGS((void));
646 {
647 long i;
648 char_u *l;
649 int count;
650 linenr_T first_changed = 0;
651 linenr_T last_changed = 0;
652 linenr_T start_lnum = curwin->w_cursor.lnum;
653
654 /* Don't even try when 'modifiable' is off. */
655 if (!curbuf->b_p_ma)
656 {
657 EMSG(_(e_modifiable));
658 return;
659 }
660
661 for (i = oap->line_count; --i >= 0 && !got_int; )
662 {
663 /* it's a slow thing to do, so give feedback so there's no worry that
664 * the computer's just hung. */
665
666 if (i > 1
667 && (i % 50 == 0 || i == oap->line_count - 1)
668 && oap->line_count > p_report)
669 smsg((char_u *)_("%ld lines to indent... "), i);
670
671 /*
672 * Be vi-compatible: For lisp indenting the first line is not
673 * indented, unless there is only one line.
674 */
675 #ifdef FEAT_LISP
676 if (i != oap->line_count - 1 || oap->line_count == 1
677 || how != get_lisp_indent)
678 #endif
679 {
680 l = skipwhite(ml_get_curline());
681 if (*l == NUL) /* empty or blank line */
682 count = 0;
683 else
684 count = how(); /* get the indent for this line */
685
686 if (set_indent(count, SIN_UNDO))
687 {
688 /* did change the indent, call changed_lines() later */
689 if (first_changed == 0)
690 first_changed = curwin->w_cursor.lnum;
691 last_changed = curwin->w_cursor.lnum;
692 }
693 }
694 ++curwin->w_cursor.lnum;
695 curwin->w_cursor.col = 0; /* make sure it's valid */
696 }
697
698 /* put cursor on first non-blank of indented line */
699 curwin->w_cursor.lnum = start_lnum;
700 beginline(BL_SOL | BL_FIX);
701
702 /* Mark changed lines so that they will be redrawn. When Visual
703 * highlighting was present, need to continue until the last line. When
704 * there is no change still need to remove the Visual highlighting. */
705 if (last_changed != 0)
706 changed_lines(first_changed, 0,
707 #ifdef FEAT_VISUAL
708 oap->is_VIsual ? start_lnum + oap->line_count :
709 #endif
710 last_changed + 1, 0L);
711 #ifdef FEAT_VISUAL
712 else if (oap->is_VIsual)
713 redraw_curbuf_later(INVERTED);
714 #endif
715
716 if (oap->line_count > p_report)
717 {
718 i = oap->line_count - (i + 1);
719 if (i == 1)
720 MSG(_("1 line indented "));
721 else
722 smsg((char_u *)_("%ld lines indented "), i);
723 }
724 /* set '[ and '] marks */
725 curbuf->b_op_start = oap->start;
726 curbuf->b_op_end = oap->end;
727 }
728 #endif /* defined(FEAT_LISP) || defined(FEAT_CINDENT) */
729
730 #if defined(FEAT_EVAL) || defined(PROTO)
731 /*
732 * Keep the last expression line here, for repeating.
733 */
734 static char_u *expr_line = NULL;
735
736 /*
737 * Get an expression for the "\"=expr1" or "CTRL-R =expr1"
738 * Returns '=' when OK, NUL otherwise.
739 */
740 int
741 get_expr_register()
742 {
743 char_u *new_line;
744
745 new_line = getcmdline('=', 0L, 0);
746 if (new_line == NULL)
747 return NUL;
748 if (*new_line == NUL) /* use previous line */
749 vim_free(new_line);
750 else
751 set_expr_line(new_line);
752 return '=';
753 }
754
755 /*
756 * Set the expression for the '=' register.
757 * Argument must be an allocated string.
758 */
759 void
760 set_expr_line(new_line)
761 char_u *new_line;
762 {
763 vim_free(expr_line);
764 expr_line = new_line;
765 }
766
767 /*
768 * Get the result of the '=' register expression.
769 * Returns a pointer to allocated memory, or NULL for failure.
770 */
771 char_u *
772 get_expr_line()
773 {
774 char_u *expr_copy;
775 char_u *rv;
776 static int nested = 0;
777
778 if (expr_line == NULL)
779 return NULL;
780
781 /* Make a copy of the expression, because evaluating it may cause it to be
782 * changed. */
783 expr_copy = vim_strsave(expr_line);
784 if (expr_copy == NULL)
785 return NULL;
786
787 /* When we are invoked recursively limit the evaluation to 10 levels.
788 * Then return the string as-is. */
789 if (nested >= 10)
790 return expr_copy;
791
792 ++nested;
793 rv = eval_to_string(expr_copy, NULL, TRUE);
794 --nested;
795 vim_free(expr_copy);
796 return rv;
797 }
798
799 /*
800 * Get the '=' register expression itself, without evaluating it.
801 */
802 char_u *
803 get_expr_line_src()
804 {
805 if (expr_line == NULL)
806 return NULL;
807 return vim_strsave(expr_line);
808 }
809 #endif /* FEAT_EVAL */
810
811 /*
812 * Check if 'regname' is a valid name of a yank register.
813 * Note: There is no check for 0 (default register), caller should do this
814 */
815 int
816 valid_yank_reg(regname, writing)
817 int regname;
818 int writing; /* if TRUE check for writable registers */
819 {
820 if ( (regname > 0 && ASCII_ISALNUM(regname))
821 || (!writing && vim_strchr((char_u *)
822 #ifdef FEAT_EVAL
823 "/.%#:="
824 #else
825 "/.%#:"
826 #endif
827 , regname) != NULL)
828 || regname == '"'
829 || regname == '-'
830 || regname == '_'
831 #ifdef FEAT_CLIPBOARD
832 || regname == '*'
833 || regname == '+'
834 #endif
835 #ifdef FEAT_DND
836 || (!writing && regname == '~')
837 #endif
838 )
839 return TRUE;
840 return FALSE;
841 }
842
843 /*
844 * Set y_current and y_append, according to the value of "regname".
845 * Cannot handle the '_' register.
846 * Must only be called with a valid register name!
847 *
848 * If regname is 0 and writing, use register 0
849 * If regname is 0 and reading, use previous register
850 */
851 void
852 get_yank_register(regname, writing)
853 int regname;
854 int writing;
855 {
856 int i;
857
858 y_append = FALSE;
859 if ((regname == 0 || regname == '"') && !writing && y_previous != NULL)
860 {
861 y_current = y_previous;
862 return;
863 }
864 i = regname;
865 if (VIM_ISDIGIT(i))
866 i -= '0';
867 else if (ASCII_ISLOWER(i))
868 i = CharOrdLow(i) + 10;
869 else if (ASCII_ISUPPER(i))
870 {
871 i = CharOrdUp(i) + 10;
872 y_append = TRUE;
873 }
874 else if (regname == '-')
875 i = DELETION_REGISTER;
876 #ifdef FEAT_CLIPBOARD
877 /* When selection is not available, use register 0 instead of '*' */
878 else if (clip_star.available && regname == '*')
879 i = STAR_REGISTER;
880 /* When clipboard is not available, use register 0 instead of '+' */
881 else if (clip_plus.available && regname == '+')
882 i = PLUS_REGISTER;
883 #endif
884 #ifdef FEAT_DND
885 else if (!writing && regname == '~')
886 i = TILDE_REGISTER;
887 #endif
888 else /* not 0-9, a-z, A-Z or '-': use register 0 */
889 i = 0;
890 y_current = &(y_regs[i]);
891 if (writing) /* remember the register we write into for do_put() */
892 y_previous = y_current;
893 }
894
895 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
896 /*
897 * When "regname" is a clipboard register, obtain the selection. If it's not
898 * available return zero, otherwise return "regname".
899 */
900 int
901 may_get_selection(regname)
902 int regname;
903 {
904 if (regname == '*')
905 {
906 if (!clip_star.available)
907 regname = 0;
908 else
909 clip_get_selection(&clip_star);
910 }
911 else if (regname == '+')
912 {
913 if (!clip_plus.available)
914 regname = 0;
915 else
916 clip_get_selection(&clip_plus);
917 }
918 return regname;
919 }
920 #endif
921
922 #if defined(FEAT_VISUAL) || defined(PROTO)
923 /*
924 * Obtain the contents of a "normal" register. The register is made empty.
925 * The returned pointer has allocated memory, use put_register() later.
926 */
927 void *
928 get_register(name, copy)
929 int name;
930 int copy; /* make a copy, if FALSE make register empty. */
931 {
932 struct yankreg *reg;
933 int i;
934
935 #ifdef FEAT_CLIPBOARD
936 /* When Visual area changed, may have to update selection. Obtain the
937 * selection too. */
938 if (name == '*' && clip_star.available)
939 {
940 if (clip_isautosel())
941 clip_update_selection();
942 may_get_selection(name);
943 }
944 #endif
945
946 get_yank_register(name, 0);
947 reg = (struct yankreg *)alloc((unsigned)sizeof(struct yankreg));
948 if (reg != NULL)
949 {
950 *reg = *y_current;
951 if (copy)
952 {
953 /* If we run out of memory some or all of the lines are empty. */
954 if (reg->y_size == 0)
955 reg->y_array = NULL;
956 else
957 reg->y_array = (char_u **)alloc((unsigned)(sizeof(char_u *)
958 * reg->y_size));
959 if (reg->y_array != NULL)
960 {
961 for (i = 0; i < reg->y_size; ++i)
962 reg->y_array[i] = vim_strsave(y_current->y_array[i]);
963 }
964 }
965 else
966 y_current->y_array = NULL;
967 }
968 return (void *)reg;
969 }
970
971 /*
972 * Put "reg" into register "name". Free any previous contents and "reg".
973 */
974 void
975 put_register(name, reg)
976 int name;
977 void *reg;
978 {
979 get_yank_register(name, 0);
980 free_yank_all();
981 *y_current = *(struct yankreg *)reg;
982 vim_free(reg);
983
984 # ifdef FEAT_CLIPBOARD
985 /* Send text written to clipboard register to the clipboard. */
986 may_set_selection();
987 # endif
988 }
989 #endif
990
991 #if defined(FEAT_MOUSE) || defined(PROTO)
992 /*
993 * return TRUE if the current yank register has type MLINE
994 */
995 int
996 yank_register_mline(regname)
997 int regname;
998 {
999 if (regname != 0 && !valid_yank_reg(regname, FALSE))
1000 return FALSE;
1001 if (regname == '_') /* black hole is always empty */
1002 return FALSE;
1003 get_yank_register(regname, FALSE);
1004 return (y_current->y_type == MLINE);
1005 }
1006 #endif
1007
1008 /*
1009 * Start or stop recording into a yank register.
1010 *
1011 * Return FAIL for failure, OK otherwise.
1012 */
1013 int
1014 do_record(c)
1015 int c;
1016 {
1017 char_u *p;
1018 static int regname;
1019 struct yankreg *old_y_previous, *old_y_current;
1020 int retval;
1021
1022 if (Recording == FALSE) /* start recording */
1023 {
1024 /* registers 0-9, a-z and " are allowed */
1025 if (c < 0 || (!ASCII_ISALNUM(c) && c != '"'))
1026 retval = FAIL;
1027 else
1028 {
1029 Recording = TRUE;
1030 showmode();
1031 regname = c;
1032 retval = OK;
1033 }
1034 }
1035 else /* stop recording */
1036 {
1037 /*
1038 * Get the recorded key hits. K_SPECIAL and CSI will be escaped, this
1039 * needs to be removed again to put it in a register. exec_reg then
1040 * adds the escaping back later.
1041 */
1042 Recording = FALSE;
1043 MSG("");
1044 p = get_recorded();
1045 if (p == NULL)
1046 retval = FAIL;
1047 else
1048 {
1049 /* Remove escaping for CSI and K_SPECIAL in multi-byte chars. */
1050 vim_unescape_csi(p);
1051
1052 /*
1053 * We don't want to change the default register here, so save and
1054 * restore the current register name.
1055 */
1056 old_y_previous = y_previous;
1057 old_y_current = y_current;
1058
1059 retval = stuff_yank(regname, p);
1060
1061 y_previous = old_y_previous;
1062 y_current = old_y_current;
1063 }
1064 }
1065 return retval;
1066 }
1067
1068 /*
1069 * Stuff string "p" into yank register "regname" as a single line (append if
1070 * uppercase). "p" must have been alloced.
1071 *
1072 * return FAIL for failure, OK otherwise
1073 */
1074 static int
1075 stuff_yank(regname, p)
1076 int regname;
1077 char_u *p;
1078 {
1079 char_u *lp;
1080 char_u **pp;
1081
1082 /* check for read-only register */
1083 if (regname != 0 && !valid_yank_reg(regname, TRUE))
1084 {
1085 vim_free(p);
1086 return FAIL;
1087 }
1088 if (regname == '_') /* black hole: don't do anything */
1089 {
1090 vim_free(p);
1091 return OK;
1092 }
1093 get_yank_register(regname, TRUE);
1094 if (y_append && y_current->y_array != NULL)
1095 {
1096 pp = &(y_current->y_array[y_current->y_size - 1]);
1097 lp = lalloc((long_u)(STRLEN(*pp) + STRLEN(p) + 1), TRUE);
1098 if (lp == NULL)
1099 {
1100 vim_free(p);
1101 return FAIL;
1102 }
1103 STRCPY(lp, *pp);
1104 STRCAT(lp, p);
1105 vim_free(p);
1106 vim_free(*pp);
1107 *pp = lp;
1108 }
1109 else
1110 {
1111 free_yank_all();
1112 if ((y_current->y_array =
1113 (char_u **)alloc((unsigned)sizeof(char_u *))) == NULL)
1114 {
1115 vim_free(p);
1116 return FAIL;
1117 }
1118 y_current->y_array[0] = p;
1119 y_current->y_size = 1;
1120 y_current->y_type = MCHAR; /* used to be MLINE, why? */
1121 }
1122 return OK;
1123 }
1124
1125 /*
1126 * execute a yank register: copy it into the stuff buffer
1127 *
1128 * return FAIL for failure, OK otherwise
1129 */
1130 int
1131 do_execreg(regname, colon, addcr, silent)
1132 int regname;
1133 int colon; /* insert ':' before each line */
1134 int addcr; /* always add '\n' to end of line */
1135 int silent; /* set "silent" flag in typeahead buffer */
1136 {
1137 static int lastc = NUL;
1138 long i;
1139 char_u *p;
1140 int retval = OK;
1141 int remap;
1142
1143 if (regname == '@') /* repeat previous one */
1144 {
1145 if (lastc == NUL)
1146 {
1147 EMSG(_("E748: No previously used register"));
1148 return FAIL;
1149 }
1150 regname = lastc;
1151 }
1152 /* check for valid regname */
1153 if (regname == '%' || regname == '#' || !valid_yank_reg(regname, FALSE))
1154 {
1155 emsg_invreg(regname);
1156 return FAIL;
1157 }
1158 lastc = regname;
1159
1160 #ifdef FEAT_CLIPBOARD
1161 regname = may_get_selection(regname);
1162 #endif
1163
1164 if (regname == '_') /* black hole: don't stuff anything */
1165 return OK;
1166
1167 #ifdef FEAT_CMDHIST
1168 if (regname == ':') /* use last command line */
1169 {
1170 if (last_cmdline == NULL)
1171 {
1172 EMSG(_(e_nolastcmd));
1173 return FAIL;
1174 }
1175 vim_free(new_last_cmdline); /* don't keep the cmdline containing @: */
1176 new_last_cmdline = NULL;
1177 /* Escape all control characters with a CTRL-V */
1178 p = vim_strsave_escaped_ext(last_cmdline,
1179 (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);
1180 if (p != NULL)
1181 {
1182 /* When in Visual mode "'<,'>" will be prepended to the command.
1183 * Remove it when it's already there. */
1184 if (VIsual_active && STRNCMP(p, "'<,'>", 5) == 0)
1185 retval = put_in_typebuf(p + 5, TRUE, TRUE, silent);
1186 else
1187 retval = put_in_typebuf(p, TRUE, TRUE, silent);
1188 }
1189 vim_free(p);
1190 }
1191 #endif
1192 #ifdef FEAT_EVAL
1193 else if (regname == '=')
1194 {
1195 p = get_expr_line();
1196 if (p == NULL)
1197 return FAIL;
1198 retval = put_in_typebuf(p, TRUE, colon, silent);
1199 vim_free(p);
1200 }
1201 #endif
1202 else if (regname == '.') /* use last inserted text */
1203 {
1204 p = get_last_insert_save();
1205 if (p == NULL)
1206 {
1207 EMSG(_(e_noinstext));
1208 return FAIL;
1209 }
1210 retval = put_in_typebuf(p, FALSE, colon, silent);
1211 vim_free(p);
1212 }
1213 else
1214 {
1215 get_yank_register(regname, FALSE);
1216 if (y_current->y_array == NULL)
1217 return FAIL;
1218
1219 /* Disallow remaping for ":@r". */
1220 remap = colon ? REMAP_NONE : REMAP_YES;
1221
1222 /*
1223 * Insert lines into typeahead buffer, from last one to first one.
1224 */
1225 put_reedit_in_typebuf(silent);
1226 for (i = y_current->y_size; --i >= 0; )
1227 {
1228 char_u *escaped;
1229
1230 /* insert NL between lines and after last line if type is MLINE */
1231 if (y_current->y_type == MLINE || i < y_current->y_size - 1
1232 || addcr)
1233 {
1234 if (ins_typebuf((char_u *)"\n", remap, 0, TRUE, silent) == FAIL)
1235 return FAIL;
1236 }
1237 escaped = vim_strsave_escape_csi(y_current->y_array[i]);
1238 if (escaped == NULL)
1239 return FAIL;
1240 retval = ins_typebuf(escaped, remap, 0, TRUE, silent);
1241 vim_free(escaped);
1242 if (retval == FAIL)
1243 return FAIL;
1244 if (colon && ins_typebuf((char_u *)":", remap, 0, TRUE, silent)
1245 == FAIL)
1246 return FAIL;
1247 }
1248 Exec_reg = TRUE; /* disable the 'q' command */
1249 }
1250 return retval;
1251 }
1252
1253 /*
1254 * If "restart_edit" is not zero, put it in the typeahead buffer, so that it's
1255 * used only after other typeahead has been processed.
1256 */
1257 static void
1258 put_reedit_in_typebuf(silent)
1259 int silent;
1260 {
1261 char_u buf[3];
1262
1263 if (restart_edit != NUL)
1264 {
1265 if (restart_edit == 'V')
1266 {
1267 buf[0] = 'g';
1268 buf[1] = 'R';
1269 buf[2] = NUL;
1270 }
1271 else
1272 {
1273 buf[0] = restart_edit == 'I' ? 'i' : restart_edit;
1274 buf[1] = NUL;
1275 }
1276 if (ins_typebuf(buf, REMAP_NONE, 0, TRUE, silent) == OK)
1277 restart_edit = NUL;
1278 }
1279 }
1280
1281 static int
1282 put_in_typebuf(s, esc, colon, silent)
1283 char_u *s;
1284 int esc; /* Escape CSI characters */
1285 int colon; /* add ':' before the line */
1286 int silent;
1287 {
1288 int retval = OK;
1289
1290 put_reedit_in_typebuf(silent);
1291 if (colon)
1292 retval = ins_typebuf((char_u *)"\n", REMAP_YES, 0, TRUE, silent);
1293 if (retval == OK)
1294 {
1295 char_u *p;
1296
1297 if (esc)
1298 p = vim_strsave_escape_csi(s);
1299 else
1300 p = s;
1301 if (p == NULL)
1302 retval = FAIL;
1303 else
1304 retval = ins_typebuf(p, REMAP_YES, 0, TRUE, silent);
1305 if (esc)
1306 vim_free(p);
1307 }
1308 if (colon && retval == OK)
1309 retval = ins_typebuf((char_u *)":", REMAP_YES, 0, TRUE, silent);
1310 return retval;
1311 }
1312
1313 /*
1314 * Insert a yank register: copy it into the Read buffer.
1315 * Used by CTRL-R command and middle mouse button in insert mode.
1316 *
1317 * return FAIL for failure, OK otherwise
1318 */
1319 int
1320 insert_reg(regname, literally)
1321 int regname;
1322 int literally; /* insert literally, not as if typed */
1323 {
1324 long i;
1325 int retval = OK;
1326 char_u *arg;
1327 int allocated;
1328
1329 /*
1330 * It is possible to get into an endless loop by having CTRL-R a in
1331 * register a and then, in insert mode, doing CTRL-R a.
1332 * If you hit CTRL-C, the loop will be broken here.
1333 */
1334 ui_breakcheck();
1335 if (got_int)
1336 return FAIL;
1337
1338 /* check for valid regname */
1339 if (regname != NUL && !valid_yank_reg(regname, FALSE))
1340 return FAIL;
1341
1342 #ifdef FEAT_CLIPBOARD
1343 regname = may_get_selection(regname);
1344 #endif
1345
1346 if (regname == '.') /* insert last inserted text */
1347 retval = stuff_inserted(NUL, 1L, TRUE);
1348 else if (get_spec_reg(regname, &arg, &allocated, TRUE))
1349 {
1350 if (arg == NULL)
1351 return FAIL;
1352 stuffescaped(arg, literally);
1353 if (allocated)
1354 vim_free(arg);
1355 }
1356 else /* name or number register */
1357 {
1358 get_yank_register(regname, FALSE);
1359 if (y_current->y_array == NULL)
1360 retval = FAIL;
1361 else
1362 {
1363 for (i = 0; i < y_current->y_size; ++i)
1364 {
1365 stuffescaped(y_current->y_array[i], literally);
1366 /*
1367 * Insert a newline between lines and after last line if
1368 * y_type is MLINE.
1369 */
1370 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
1371 stuffcharReadbuff('\n');
1372 }
1373 }
1374 }
1375
1376 return retval;
1377 }
1378
1379 /*
1380 * Stuff a string into the typeahead buffer, such that edit() will insert it
1381 * literally ("literally" TRUE) or interpret is as typed characters.
1382 */
1383 static void
1384 stuffescaped(arg, literally)
1385 char_u *arg;
1386 int literally;
1387 {
1388 int c;
1389 char_u *start;
1390
1391 while (*arg != NUL)
1392 {
1393 /* Stuff a sequence of normal ASCII characters, that's fast. Also
1394 * stuff K_SPECIAL to get the effect of a special key when "literally"
1395 * is TRUE. */
1396 start = arg;
1397 while ((*arg >= ' '
1398 #ifndef EBCDIC
1399 && *arg < DEL /* EBCDIC: chars above space are normal */
1400 #endif
1401 )
1402 || (*arg == K_SPECIAL && !literally))
1403 ++arg;
1404 if (arg > start)
1405 stuffReadbuffLen(start, (long)(arg - start));
1406
1407 /* stuff a single special character */
1408 if (*arg != NUL)
1409 {
1410 #ifdef FEAT_MBYTE
1411 if (has_mbyte)
1412 c = mb_ptr2char_adv(&arg);
1413 else
1414 #endif
1415 c = *arg++;
1416 if (literally && ((c < ' ' && c != TAB) || c == DEL))
1417 stuffcharReadbuff(Ctrl_V);
1418 stuffcharReadbuff(c);
1419 }
1420 }
1421 }
1422
1423 /*
1424 * If "regname" is a special register, return TRUE and store a pointer to its
1425 * value in "argp".
1426 */
1427 int
1428 get_spec_reg(regname, argp, allocated, errmsg)
1429 int regname;
1430 char_u **argp;
1431 int *allocated; /* return: TRUE when value was allocated */
1432 int errmsg; /* give error message when failing */
1433 {
1434 int cnt;
1435
1436 *argp = NULL;
1437 *allocated = FALSE;
1438 switch (regname)
1439 {
1440 case '%': /* file name */
1441 if (errmsg)
1442 check_fname(); /* will give emsg if not set */
1443 *argp = curbuf->b_fname;
1444 return TRUE;
1445
1446 case '#': /* alternate file name */
1447 *argp = getaltfname(errmsg); /* may give emsg if not set */
1448 return TRUE;
1449
1450 #ifdef FEAT_EVAL
1451 case '=': /* result of expression */
1452 *argp = get_expr_line();
1453 *allocated = TRUE;
1454 return TRUE;
1455 #endif
1456
1457 case ':': /* last command line */
1458 if (last_cmdline == NULL && errmsg)
1459 EMSG(_(e_nolastcmd));
1460 *argp = last_cmdline;
1461 return TRUE;
1462
1463 case '/': /* last search-pattern */
1464 if (last_search_pat() == NULL && errmsg)
1465 EMSG(_(e_noprevre));
1466 *argp = last_search_pat();
1467 return TRUE;
1468
1469 case '.': /* last inserted text */
1470 *argp = get_last_insert_save();
1471 *allocated = TRUE;
1472 if (*argp == NULL && errmsg)
1473 EMSG(_(e_noinstext));
1474 return TRUE;
1475
1476 #ifdef FEAT_SEARCHPATH
1477 case Ctrl_F: /* Filename under cursor */
1478 case Ctrl_P: /* Path under cursor, expand via "path" */
1479 if (!errmsg)
1480 return FALSE;
1481 *argp = file_name_at_cursor(FNAME_MESS | FNAME_HYP
1482 | (regname == Ctrl_P ? FNAME_EXP : 0), 1L, NULL);
1483 *allocated = TRUE;
1484 return TRUE;
1485 #endif
1486
1487 case Ctrl_W: /* word under cursor */
1488 case Ctrl_A: /* WORD (mnemonic All) under cursor */
1489 if (!errmsg)
1490 return FALSE;
1491 cnt = find_ident_under_cursor(argp, regname == Ctrl_W
1492 ? (FIND_IDENT|FIND_STRING) : FIND_STRING);
1493 *argp = cnt ? vim_strnsave(*argp, cnt) : NULL;
1494 *allocated = TRUE;
1495 return TRUE;
1496
1497 case '_': /* black hole: always empty */
1498 *argp = (char_u *)"";
1499 return TRUE;
1500 }
1501
1502 return FALSE;
1503 }
1504
1505 /*
1506 * Paste a yank register into the command line.
1507 * Only for non-special registers.
1508 * Used by CTRL-R command in command-line mode
1509 * insert_reg() can't be used here, because special characters from the
1510 * register contents will be interpreted as commands.
1511 *
1512 * return FAIL for failure, OK otherwise
1513 */
1514 int
1515 cmdline_paste_reg(regname, literally, remcr)
1516 int regname;
1517 int literally; /* Insert text literally instead of "as typed" */
1518 int remcr; /* don't add trailing CR */
1519 {
1520 long i;
1521
1522 get_yank_register(regname, FALSE);
1523 if (y_current->y_array == NULL)
1524 return FAIL;
1525
1526 for (i = 0; i < y_current->y_size; ++i)
1527 {
1528 cmdline_paste_str(y_current->y_array[i], literally);
1529
1530 /* Insert ^M between lines and after last line if type is MLINE.
1531 * Don't do this when "remcr" is TRUE and the next line is empty. */
1532 if (y_current->y_type == MLINE
1533 || (i < y_current->y_size - 1
1534 && !(remcr
1535 && i == y_current->y_size - 2
1536 && *y_current->y_array[i + 1] == NUL)))
1537 cmdline_paste_str((char_u *)"\r", literally);
1538
1539 /* Check for CTRL-C, in case someone tries to paste a few thousand
1540 * lines and gets bored. */
1541 ui_breakcheck();
1542 if (got_int)
1543 return FAIL;
1544 }
1545 return OK;
1546 }
1547
1548 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
1549 /*
1550 * Adjust the register name pointed to with "rp" for the clipboard being
1551 * used always and the clipboard being available.
1552 */
1553 void
1554 adjust_clip_reg(rp)
1555 int *rp;
1556 {
1557 /* If no reg. specified, and "unnamed" is in 'clipboard', use '*' reg. */
1558 if (*rp == 0 && clip_unnamed)
1559 *rp = '*';
1560 if (!clip_star.available && *rp == '*')
1561 *rp = 0;
1562 if (!clip_plus.available && *rp == '+')
1563 *rp = 0;
1564 }
1565 #endif
1566
1567 /*
1568 * op_delete - handle a delete operation
1569 *
1570 * return FAIL if undo failed, OK otherwise.
1571 */
1572 int
1573 op_delete(oap)
1574 oparg_T *oap;
1575 {
1576 int n;
1577 linenr_T lnum;
1578 char_u *ptr;
1579 #ifdef FEAT_VISUAL
1580 char_u *newp, *oldp;
1581 struct block_def bd;
1582 #endif
1583 linenr_T old_lcount = curbuf->b_ml.ml_line_count;
1584 int did_yank = FALSE;
1585
1586 if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to do */
1587 return OK;
1588
1589 /* Nothing to delete, return here. Do prepare undo, for op_change(). */
1590 if (oap->empty)
1591 return u_save_cursor();
1592
1593 if (!curbuf->b_p_ma)
1594 {
1595 EMSG(_(e_modifiable));
1596 return FAIL;
1597 }
1598
1599 #ifdef FEAT_CLIPBOARD
1600 adjust_clip_reg(&oap->regname);
1601 #endif
1602
1603 #ifdef FEAT_MBYTE
1604 if (has_mbyte)
1605 mb_adjust_opend(oap);
1606 #endif
1607
1608 /*
1609 * Imitate the strange Vi behaviour: If the delete spans more than one line
1610 * and motion_type == MCHAR and the result is a blank line, make the delete
1611 * linewise. Don't do this for the change command or Visual mode.
1612 */
1613 if ( oap->motion_type == MCHAR
1614 #ifdef FEAT_VISUAL
1615 && !oap->is_VIsual
1616 && !oap->block_mode
1617 #endif
1618 && oap->line_count > 1
1619 && oap->op_type == OP_DELETE)
1620 {
1621 ptr = ml_get(oap->end.lnum) + oap->end.col + oap->inclusive;
1622 ptr = skipwhite(ptr);
1623 if (*ptr == NUL && inindent(0))
1624 oap->motion_type = MLINE;
1625 }
1626
1627 /*
1628 * Check for trying to delete (e.g. "D") in an empty line.
1629 * Note: For the change operator it is ok.
1630 */
1631 if ( oap->motion_type == MCHAR
1632 && oap->line_count == 1
1633 && oap->op_type == OP_DELETE
1634 && *ml_get(oap->start.lnum) == NUL)
1635 {
1636 /*
1637 * It's an error to operate on an empty region, when 'E' included in
1638 * 'cpoptions' (Vi compatible).
1639 */
1640 #ifdef FEAT_VIRTUALEDIT
1641 if (virtual_op)
1642 /* Virtual editing: Nothing gets deleted, but we set the '[ and ']
1643 * marks as if it happened. */
1644 goto setmarks;
1645 #endif
1646 if (vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL)
1647 beep_flush();
1648 return OK;
1649 }
1650
1651 /*
1652 * Do a yank of whatever we're about to delete.
1653 * If a yank register was specified, put the deleted text into that register.
1654 * For the black hole register '_' don't yank anything.
1655 */
1656 if (oap->regname != '_')
1657 {
1658 if (oap->regname != 0)
1659 {
1660 /* check for read-only register */
1661 if (!valid_yank_reg(oap->regname, TRUE))
1662 {
1663 beep_flush();
1664 return OK;
1665 }
1666 get_yank_register(oap->regname, TRUE); /* yank into specif'd reg. */
1667 if (op_yank(oap, TRUE, FALSE) == OK) /* yank without message */
1668 did_yank = TRUE;
1669 }
1670
1671 /*
1672 * Put deleted text into register 1 and shift number registers if the
1673 * delete contains a line break, or when a regname has been specified.
1674 */
1675 if (oap->regname != 0 || oap->motion_type == MLINE
1676 || oap->line_count > 1 || oap->use_reg_one)
1677 {
1678 y_current = &y_regs[9];
1679 free_yank_all(); /* free register nine */
1680 for (n = 9; n > 1; --n)
1681 y_regs[n] = y_regs[n - 1];
1682 y_previous = y_current = &y_regs[1];
1683 y_regs[1].y_array = NULL; /* set register one to empty */
1684 if (op_yank(oap, TRUE, FALSE) == OK)
1685 did_yank = TRUE;
1686 }
1687
1688 /* Yank into small delete register when no register specified and the
1689 * delete is within one line. */
1690 if (oap->regname == 0 && oap->motion_type != MLINE
1691 && oap->line_count == 1)
1692 {
1693 oap->regname = '-';
1694 get_yank_register(oap->regname, TRUE);
1695 if (op_yank(oap, TRUE, FALSE) == OK)
1696 did_yank = TRUE;
1697 oap->regname = 0;
1698 }
1699
1700 /*
1701 * If there's too much stuff to fit in the yank register, then get a
1702 * confirmation before doing the delete. This is crude, but simple.
1703 * And it avoids doing a delete of something we can't put back if we
1704 * want.
1705 */
1706 if (!did_yank)
1707 {
1708 int msg_silent_save = msg_silent;
1709
1710 msg_silent = 0; /* must display the prompt */
1711 n = ask_yesno((char_u *)_("cannot yank; delete anyway"), TRUE);
1712 msg_silent = msg_silent_save;
1713 if (n != 'y')
1714 {
1715 EMSG(_(e_abort));
1716 return FAIL;
1717 }
1718 }
1719 }
1720
1721 #ifdef FEAT_VISUAL
1722 /*
1723 * block mode delete
1724 */
1725 if (oap->block_mode)
1726 {
1727 if (u_save((linenr_T)(oap->start.lnum - 1),
1728 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1729 return FAIL;
1730
1731 for (lnum = curwin->w_cursor.lnum; lnum <= oap->end.lnum; ++lnum)
1732 {
1733 block_prep(oap, &bd, lnum, TRUE);
1734 if (bd.textlen == 0) /* nothing to delete */
1735 continue;
1736
1737 /* Adjust cursor position for tab replaced by spaces and 'lbr'. */
1738 if (lnum == curwin->w_cursor.lnum)
1739 {
1740 curwin->w_cursor.col = bd.textcol + bd.startspaces;
1741 # ifdef FEAT_VIRTUALEDIT
1742 curwin->w_cursor.coladd = 0;
1743 # endif
1744 }
1745
1746 /* n == number of chars deleted
1747 * If we delete a TAB, it may be replaced by several characters.
1748 * Thus the number of characters may increase!
1749 */
1750 n = bd.textlen - bd.startspaces - bd.endspaces;
1751 oldp = ml_get(lnum);
1752 newp = alloc_check((unsigned)STRLEN(oldp) + 1 - n);
1753 if (newp == NULL)
1754 continue;
1755 /* copy up to deleted part */
1756 mch_memmove(newp, oldp, (size_t)bd.textcol);
1757 /* insert spaces */
1758 copy_spaces(newp + bd.textcol,
1759 (size_t)(bd.startspaces + bd.endspaces));
1760 /* copy the part after the deleted part */
1761 oldp += bd.textcol + bd.textlen;
1762 STRMOVE(newp + bd.textcol + bd.startspaces + bd.endspaces, oldp);
1763 /* replace the line */
1764 ml_replace(lnum, newp, FALSE);
1765 }
1766
1767 check_cursor_col();
1768 changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col,
1769 oap->end.lnum + 1, 0L);
1770 oap->line_count = 0; /* no lines deleted */
1771 }
1772 else
1773 #endif
1774 if (oap->motion_type == MLINE)
1775 {
1776 if (oap->op_type == OP_CHANGE)
1777 {
1778 /* Delete the lines except the first one. Temporarily move the
1779 * cursor to the next line. Save the current line number, if the
1780 * last line is deleted it may be changed.
1781 */
1782 if (oap->line_count > 1)
1783 {
1784 lnum = curwin->w_cursor.lnum;
1785 ++curwin->w_cursor.lnum;
1786 del_lines((long)(oap->line_count - 1), TRUE);
1787 curwin->w_cursor.lnum = lnum;
1788 }
1789 if (u_save_cursor() == FAIL)
1790 return FAIL;
1791 if (curbuf->b_p_ai) /* don't delete indent */
1792 {
1793 beginline(BL_WHITE); /* cursor on first non-white */
1794 did_ai = TRUE; /* delete the indent when ESC hit */
1795 ai_col = curwin->w_cursor.col;
1796 }
1797 else
1798 beginline(0); /* cursor in column 0 */
1799 truncate_line(FALSE); /* delete the rest of the line */
1800 /* leave cursor past last char in line */
1801 if (oap->line_count > 1)
1802 u_clearline(); /* "U" command not possible after "2cc" */
1803 }
1804 else
1805 {
1806 del_lines(oap->line_count, TRUE);
1807 beginline(BL_WHITE | BL_FIX);
1808 u_clearline(); /* "U" command not possible after "dd" */
1809 }
1810 }
1811 else
1812 {
1813 #ifdef FEAT_VIRTUALEDIT
1814 if (virtual_op)
1815 {
1816 int endcol = 0;
1817
1818 /* For virtualedit: break the tabs that are partly included. */
1819 if (gchar_pos(&oap->start) == '\t')
1820 {
1821 if (u_save_cursor() == FAIL) /* save first line for undo */
1822 return FAIL;
1823 if (oap->line_count == 1)
1824 endcol = getviscol2(oap->end.col, oap->end.coladd);
1825 coladvance_force(getviscol2(oap->start.col, oap->start.coladd));
1826 oap->start = curwin->w_cursor;
1827 if (oap->line_count == 1)
1828 {
1829 coladvance(endcol);
1830 oap->end.col = curwin->w_cursor.col;
1831 oap->end.coladd = curwin->w_cursor.coladd;
1832 curwin->w_cursor = oap->start;
1833 }
1834 }
1835
1836 /* Break a tab only when it's included in the area. */
1837 if (gchar_pos(&oap->end) == '\t'
1838 && (int)oap->end.coladd < oap->inclusive)
1839 {
1840 /* save last line for undo */
1841 if (u_save((linenr_T)(oap->end.lnum - 1),
1842 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1843 return FAIL;
1844 curwin->w_cursor = oap->end;
1845 coladvance_force(getviscol2(oap->end.col, oap->end.coladd));
1846 oap->end = curwin->w_cursor;
1847 curwin->w_cursor = oap->start;
1848 }
1849 }
1850 #endif
1851
1852 if (oap->line_count == 1) /* delete characters within one line */
1853 {
1854 if (u_save_cursor() == FAIL) /* save line for undo */
1855 return FAIL;
1856
1857 /* if 'cpoptions' contains '$', display '$' at end of change */
1858 if ( vim_strchr(p_cpo, CPO_DOLLAR) != NULL
1859 && oap->op_type == OP_CHANGE
1860 && oap->end.lnum == curwin->w_cursor.lnum
1861 #ifdef FEAT_VISUAL
1862 && !oap->is_VIsual
1863 #endif
1864 )
1865 display_dollar(oap->end.col - !oap->inclusive);
1866
1867 n = oap->end.col - oap->start.col + 1 - !oap->inclusive;
1868
1869 #ifdef FEAT_VIRTUALEDIT
1870 if (virtual_op)
1871 {
1872 /* fix up things for virtualedit-delete:
1873 * break the tabs which are going to get in our way
1874 */
1875 char_u *curline = ml_get_curline();
1876 int len = (int)STRLEN(curline);
1877
1878 if (oap->end.coladd != 0
1879 && (int)oap->end.col >= len - 1
1880 && !(oap->start.coladd && (int)oap->end.col >= len - 1))
1881 n++;
1882 /* Delete at least one char (e.g, when on a control char). */
1883 if (n == 0 && oap->start.coladd != oap->end.coladd)
1884 n = 1;
1885
1886 /* When deleted a char in the line, reset coladd. */
1887 if (gchar_cursor() != NUL)
1888 curwin->w_cursor.coladd = 0;
1889 }
1890 #endif
1891 (void)del_bytes((long)n, !virtual_op, oap->op_type == OP_DELETE
1892 #ifdef FEAT_VISUAL
1893 && !oap->is_VIsual
1894 #endif
1895 );
1896 }
1897 else /* delete characters between lines */
1898 {
1899 pos_T curpos;
1900
1901 /* save deleted and changed lines for undo */
1902 if (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
1903 (linenr_T)(curwin->w_cursor.lnum + oap->line_count)) == FAIL)
1904 return FAIL;
1905
1906 truncate_line(TRUE); /* delete from cursor to end of line */
1907
1908 curpos = curwin->w_cursor; /* remember curwin->w_cursor */
1909 ++curwin->w_cursor.lnum;
1910 del_lines((long)(oap->line_count - 2), FALSE);
1911
1912 /* delete from start of line until op_end */
1913 curwin->w_cursor.col = 0;
1914 (void)del_bytes((long)(oap->end.col + 1 - !oap->inclusive),
1915 !virtual_op, oap->op_type == OP_DELETE
1916 #ifdef FEAT_VISUAL
1917 && !oap->is_VIsual
1918 #endif
1919 );
1920 curwin->w_cursor = curpos; /* restore curwin->w_cursor */
1921
1922 (void)do_join(FALSE);
1923 }
1924 }
1925
1926 msgmore(curbuf->b_ml.ml_line_count - old_lcount);
1927
1928 #ifdef FEAT_VIRTUALEDIT
1929 setmarks:
1930 #endif
1931 #ifdef FEAT_VISUAL
1932 if (oap->block_mode)
1933 {
1934 curbuf->b_op_end.lnum = oap->end.lnum;
1935 curbuf->b_op_end.col = oap->start.col;
1936 }
1937 else
1938 #endif
1939 curbuf->b_op_end = oap->start;
1940 curbuf->b_op_start = oap->start;
1941
1942 return OK;
1943 }
1944
1945 #ifdef FEAT_MBYTE
1946 /*
1947 * Adjust end of operating area for ending on a multi-byte character.
1948 * Used for deletion.
1949 */
1950 static void
1951 mb_adjust_opend(oap)
1952 oparg_T *oap;
1953 {
1954 char_u *p;
1955
1956 if (oap->inclusive)
1957 {
1958 p = ml_get(oap->end.lnum);
1959 oap->end.col += mb_tail_off(p, p + oap->end.col);
1960 }
1961 }
1962 #endif
1963
1964 #if defined(FEAT_VISUALEXTRA) || defined(PROTO)
1965 /*
1966 * Replace a whole area with one character.
1967 */
1968 int
1969 op_replace(oap, c)
1970 oparg_T *oap;
1971 int c;
1972 {
1973 int n, numc;
1974 #ifdef FEAT_MBYTE
1975 int num_chars;
1976 #endif
1977 char_u *newp, *oldp;
1978 size_t oldlen;
1979 struct block_def bd;
1980
1981 if ((curbuf->b_ml.ml_flags & ML_EMPTY ) || oap->empty)
1982 return OK; /* nothing to do */
1983
1984 #ifdef FEAT_MBYTE
1985 if (has_mbyte)
1986 mb_adjust_opend(oap);
1987 #endif
1988
1989 if (u_save((linenr_T)(oap->start.lnum - 1),
1990 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1991 return FAIL;
1992
1993 /*
1994 * block mode replace
1995 */
1996 if (oap->block_mode)
1997 {
1998 bd.is_MAX = (curwin->w_curswant == MAXCOL);
1999 for ( ; curwin->w_cursor.lnum <= oap->end.lnum; ++curwin->w_cursor.lnum)
2000 {
2001 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE);
2002 if (bd.textlen == 0 && (!virtual_op || bd.is_MAX))
2003 continue; /* nothing to replace */
2004
2005 /* n == number of extra chars required
2006 * If we split a TAB, it may be replaced by several characters.
2007 * Thus the number of characters may increase!
2008 */
2009 #ifdef FEAT_VIRTUALEDIT
2010 /* If the range starts in virtual space, count the initial
2011 * coladd offset as part of "startspaces" */
2012 if (virtual_op && bd.is_short && *bd.textstart == NUL)
2013 {
2014 pos_T vpos;
2015
2016 getvpos(&vpos, oap->start_vcol);
2017 bd.startspaces += vpos.coladd;
2018 n = bd.startspaces;
2019 }
2020 else
2021 #endif
2022 /* allow for pre spaces */
2023 n = (bd.startspaces ? bd.start_char_vcols - 1 : 0);
2024
2025 /* allow for post spp */
2026 n += (bd.endspaces
2027 #ifdef FEAT_VIRTUALEDIT
2028 && !bd.is_oneChar
2029 #endif
2030 && bd.end_char_vcols > 0) ? bd.end_char_vcols - 1 : 0;
2031 /* Figure out how many characters to replace. */
2032 numc = oap->end_vcol - oap->start_vcol + 1;
2033 if (bd.is_short && (!virtual_op || bd.is_MAX))
2034 numc -= (oap->end_vcol - bd.end_vcol) + 1;
2035
2036 #ifdef FEAT_MBYTE
2037 /* A double-wide character can be replaced only up to half the
2038 * times. */
2039 if ((*mb_char2cells)(c) > 1)
2040 {
2041 if ((numc & 1) && !bd.is_short)
2042 {
2043 ++bd.endspaces;
2044 ++n;
2045 }
2046 numc = numc / 2;
2047 }
2048
2049 /* Compute bytes needed, move character count to num_chars. */
2050 num_chars = numc;
2051 numc *= (*mb_char2len)(c);
2052 #endif
2053 /* oldlen includes textlen, so don't double count */
2054 n += numc - bd.textlen;
2055
2056 oldp = ml_get_curline();
2057 oldlen = STRLEN(oldp);
2058 newp = alloc_check((unsigned)oldlen + 1 + n);
2059 if (newp == NULL)
2060 continue;
2061 vim_memset(newp, NUL, (size_t)(oldlen + 1 + n));
2062 /* copy up to deleted part */
2063 mch_memmove(newp, oldp, (size_t)bd.textcol);
2064 oldp += bd.textcol + bd.textlen;
2065 /* insert pre-spaces */
2066 copy_spaces(newp + bd.textcol, (size_t)bd.startspaces);
2067 /* insert replacement chars CHECK FOR ALLOCATED SPACE */
2068 #ifdef FEAT_MBYTE
2069 if (has_mbyte)
2070 {
2071 n = (int)STRLEN(newp);
2072 while (--num_chars >= 0)
2073 n += (*mb_char2bytes)(c, newp + n);
2074 }
2075 else
2076 #endif
2077 copy_chars(newp + STRLEN(newp), (size_t)numc, c);
2078 if (!bd.is_short)
2079 {
2080 /* insert post-spaces */
2081 copy_spaces(newp + STRLEN(newp), (size_t)bd.endspaces);
2082 /* copy the part after the changed part */
2083 STRMOVE(newp + STRLEN(newp), oldp);
2084 }
2085 /* replace the line */
2086 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
2087 }
2088 }
2089 else
2090 {
2091 /*
2092 * MCHAR and MLINE motion replace.
2093 */
2094 if (oap->motion_type == MLINE)
2095 {
2096 oap->start.col = 0;
2097 curwin->w_cursor.col = 0;
2098 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
2099 if (oap->end.col)
2100 --oap->end.col;
2101 }
2102 else if (!oap->inclusive)
2103 dec(&(oap->end));
2104
2105 while (ltoreq(curwin->w_cursor, oap->end))
2106 {
2107 n = gchar_cursor();
2108 if (n != NUL)
2109 {
2110 #ifdef FEAT_MBYTE
2111 if ((*mb_char2len)(c) > 1 || (*mb_char2len)(n) > 1)
2112 {
2113 /* This is slow, but it handles replacing a single-byte
2114 * with a multi-byte and the other way around. */
2115 oap->end.col += (*mb_char2len)(c) - (*mb_char2len)(n);
2116 n = State;
2117 State = REPLACE;
2118 ins_char(c);
2119 State = n;
2120 /* Backup to the replaced character. */
2121 dec_cursor();
2122 }
2123 else
2124 #endif
2125 {
2126 #ifdef FEAT_VIRTUALEDIT
2127 if (n == TAB)
2128 {
2129 int end_vcol = 0;
2130
2131 if (curwin->w_cursor.lnum == oap->end.lnum)
2132 {
2133 /* oap->end has to be recalculated when
2134 * the tab breaks */
2135 end_vcol = getviscol2(oap->end.col,
2136 oap->end.coladd);
2137 }
2138 coladvance_force(getviscol());
2139 if (curwin->w_cursor.lnum == oap->end.lnum)
2140 getvpos(&oap->end, end_vcol);
2141 }
2142 #endif
2143 pchar(curwin->w_cursor, c);
2144 }
2145 }
2146 #ifdef FEAT_VIRTUALEDIT
2147 else if (virtual_op && curwin->w_cursor.lnum == oap->end.lnum)
2148 {
2149 int virtcols = oap->end.coladd;
2150
2151 if (curwin->w_cursor.lnum == oap->start.lnum
2152 && oap->start.col == oap->end.col && oap->start.coladd)
2153 virtcols -= oap->start.coladd;
2154
2155 /* oap->end has been trimmed so it's effectively inclusive;
2156 * as a result an extra +1 must be counted so we don't
2157 * trample the NUL byte. */
2158 coladvance_force(getviscol2(oap->end.col, oap->end.coladd) + 1);
2159 curwin->w_cursor.col -= (virtcols + 1);
2160 for (; virtcols >= 0; virtcols--)
2161 {
2162 pchar(curwin->w_cursor, c);
2163 if (inc(&curwin->w_cursor) == -1)
2164 break;
2165 }
2166 }
2167 #endif
2168
2169 /* Advance to next character, stop at the end of the file. */
2170 if (inc_cursor() == -1)
2171 break;
2172 }
2173 }
2174
2175 curwin->w_cursor = oap->start;
2176 check_cursor();
2177 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1, 0L);
2178
2179 /* Set "'[" and "']" marks. */
2180 curbuf->b_op_start = oap->start;
2181 curbuf->b_op_end = oap->end;
2182
2183 return OK;
2184 }
2185 #endif
2186
2187 static int swapchars __ARGS((int op_type, pos_T *pos, int length));
2188
2189 /*
2190 * Handle the (non-standard vi) tilde operator. Also for "gu", "gU" and "g?".
2191 */
2192 void
2193 op_tilde(oap)
2194 oparg_T *oap;
2195 {
2196 pos_T pos;
2197 #ifdef FEAT_VISUAL
2198 struct block_def bd;
2199 #endif
2200 int did_change = FALSE;
2201
2202 if (u_save((linenr_T)(oap->start.lnum - 1),
2203 (linenr_T)(oap->end.lnum + 1)) == FAIL)
2204 return;
2205
2206 pos = oap->start;
2207 #ifdef FEAT_VISUAL
2208 if (oap->block_mode) /* Visual block mode */
2209 {
2210 for (; pos.lnum <= oap->end.lnum; ++pos.lnum)
2211 {
2212 block_prep(oap, &bd, pos.lnum, FALSE);
2213 pos.col = bd.textcol;
2214 did_change = swapchars(oap->op_type, &pos, bd.textlen);
2215
2216 # ifdef FEAT_NETBEANS_INTG
2217 if (usingNetbeans && did_change)
2218 {
2219 char_u *ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2220
2221 netbeans_removed(curbuf, pos.lnum, bd.textcol,
2222 (long)bd.textlen);
2223 netbeans_inserted(curbuf, pos.lnum, bd.textcol,
2224 &ptr[bd.textcol], bd.textlen);
2225 }
2226 # endif
2227 }
2228 if (did_change)
2229 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L);
2230 }
2231 else /* not block mode */
2232 #endif
2233 {
2234 if (oap->motion_type == MLINE)
2235 {
2236 oap->start.col = 0;
2237 pos.col = 0;
2238 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
2239 if (oap->end.col)
2240 --oap->end.col;
2241 }
2242 else if (!oap->inclusive)
2243 dec(&(oap->end));
2244
2245 if (pos.lnum == oap->end.lnum)
2246 did_change = swapchars(oap->op_type, &pos,
2247 oap->end.col - pos.col + 1);
2248 else
2249 for (;;)
2250 {
2251 did_change |= swapchars(oap->op_type, &pos,
2252 pos.lnum == oap->end.lnum ? oap->end.col + 1:
2253 (int)STRLEN(ml_get_pos(&pos)));
2254 if (ltoreq(oap->end, pos) || inc(&pos) == -1)
2255 break;
2256 }
2257 if (did_change)
2258 {
2259 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1,
2260 0L);
2261 #ifdef FEAT_NETBEANS_INTG
2262 if (usingNetbeans && did_change)
2263 {
2264 char_u *ptr;
2265 int count;
2266
2267 pos = oap->start;
2268 while (pos.lnum < oap->end.lnum)
2269 {
2270 ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2271 count = (int)STRLEN(ptr) - pos.col;
2272 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
2273 netbeans_inserted(curbuf, pos.lnum, pos.col,
2274 &ptr[pos.col], count);
2275 pos.col = 0;
2276 pos.lnum++;
2277 }
2278 ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2279 count = oap->end.col - pos.col + 1;
2280 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
2281 netbeans_inserted(curbuf, pos.lnum, pos.col,
2282 &ptr[pos.col], count);
2283 }
2284 #endif
2285 }
2286 }
2287
2288 #ifdef FEAT_VISUAL
2289 if (!did_change && oap->is_VIsual)
2290 /* No change: need to remove the Visual selection */
2291 redraw_curbuf_later(INVERTED);
2292 #endif
2293
2294 /*
2295 * Set '[ and '] marks.
2296 */
2297 curbuf->b_op_start = oap->start;
2298 curbuf->b_op_end = oap->end;
2299
2300 if (oap->line_count > p_report)
2301 {
2302 if (oap->line_count == 1)
2303 MSG(_("1 line changed"));
2304 else
2305 smsg((char_u *)_("%ld lines changed"), oap->line_count);
2306 }
2307 }
2308
2309 /*
2310 * Invoke swapchar() on "length" bytes at position "pos".
2311 * "pos" is advanced to just after the changed characters.
2312 * "length" is rounded up to include the whole last multi-byte character.
2313 * Also works correctly when the number of bytes changes.
2314 * Returns TRUE if some character was changed.
2315 */
2316 static int
2317 swapchars(op_type, pos, length)
2318 int op_type;
2319 pos_T *pos;
2320 int length;
2321 {
2322 int todo;
2323 int did_change = 0;
2324
2325 for (todo = length; todo > 0; --todo)
2326 {
2327 # ifdef FEAT_MBYTE
2328 if (has_mbyte)
2329 /* we're counting bytes, not characters */
2330 todo -= (*mb_ptr2len)(ml_get_pos(pos)) - 1;
2331 # endif
2332 did_change |= swapchar(op_type, pos);
2333 if (inc(pos) == -1) /* at end of file */
2334 break;
2335 }
2336 return did_change;
2337 }
2338
2339 /*
2340 * If op_type == OP_UPPER: make uppercase,
2341 * if op_type == OP_LOWER: make lowercase,
2342 * if op_type == OP_ROT13: do rot13 encoding,
2343 * else swap case of character at 'pos'
2344 * returns TRUE when something actually changed.
2345 */
2346 int
2347 swapchar(op_type, pos)
2348 int op_type;
2349 pos_T *pos;
2350 {
2351 int c;
2352 int nc;
2353
2354 c = gchar_pos(pos);
2355
2356 /* Only do rot13 encoding for ASCII characters. */
2357 if (c >= 0x80 && op_type == OP_ROT13)
2358 return FALSE;
2359
2360 #ifdef FEAT_MBYTE
2361 if (op_type == OP_UPPER && c == 0xdf
2362 && (enc_latin1like || STRCMP(p_enc, "iso-8859-2") == 0))
2363 {
2364 pos_T sp = curwin->w_cursor;
2365
2366 /* Special handling of German sharp s: change to "SS". */
2367 curwin->w_cursor = *pos;
2368 del_char(FALSE);
2369 ins_char('S');
2370 ins_char('S');
2371 curwin->w_cursor = sp;
2372 inc(pos);
2373 }
2374
2375 if (enc_dbcs != 0 && c >= 0x100) /* No lower/uppercase letter */
2376 return FALSE;
2377 #endif
2378 nc = c;
2379 if (MB_ISLOWER(c))
2380 {
2381 if (op_type == OP_ROT13)
2382 nc = ROT13(c, 'a');
2383 else if (op_type != OP_LOWER)
2384 nc = MB_TOUPPER(c);
2385 }
2386 else if (MB_ISUPPER(c))
2387 {
2388 if (op_type == OP_ROT13)
2389 nc = ROT13(c, 'A');
2390 else if (op_type != OP_UPPER)
2391 nc = MB_TOLOWER(c);
2392 }
2393 if (nc != c)
2394 {
2395 #ifdef FEAT_MBYTE
2396 if (enc_utf8 && (c >= 0x80 || nc >= 0x80))
2397 {
2398 pos_T sp = curwin->w_cursor;
2399
2400 curwin->w_cursor = *pos;
2401 del_char(FALSE);
2402 ins_char(nc);
2403 curwin->w_cursor = sp;
2404 }
2405 else
2406 #endif
2407 pchar(*pos, nc);
2408 return TRUE;
2409 }
2410 return FALSE;
2411 }
2412
2413 #if defined(FEAT_VISUALEXTRA) || defined(PROTO)
2414 /*
2415 * op_insert - Insert and append operators for Visual mode.
2416 */
2417 void
2418 op_insert(oap, count1)
2419 oparg_T *oap;
2420 long count1;
2421 {
2422 long ins_len, pre_textlen = 0;
2423 char_u *firstline, *ins_text;
2424 struct block_def bd;
2425 int i;
2426
2427 /* edit() changes this - record it for OP_APPEND */
2428 bd.is_MAX = (curwin->w_curswant == MAXCOL);
2429
2430 /* vis block is still marked. Get rid of it now. */
2431 curwin->w_cursor.lnum = oap->start.lnum;
2432 update_screen(INVERTED);
2433
2434 if (oap->block_mode)
2435 {
2436 #ifdef FEAT_VIRTUALEDIT
2437 /* When 'virtualedit' is used, need to insert the extra spaces before
2438 * doing block_prep(). When only "block" is used, virtual edit is
2439 * already disabled, but still need it when calling
2440 * coladvance_force(). */
2441 if (curwin->w_cursor.coladd > 0)
2442 {
2443 int old_ve_flags = ve_flags;
2444
2445 ve_flags = VE_ALL;
2446 if (u_save_cursor() == FAIL)
2447 return;
2448 coladvance_force(oap->op_type == OP_APPEND
2449 ? oap->end_vcol + 1 : getviscol());
2450 if (oap->op_type == OP_APPEND)
2451 --curwin->w_cursor.col;
2452 ve_flags = old_ve_flags;
2453 }
2454 #endif
2455 /* Get the info about the block before entering the text */
2456 block_prep(oap, &bd, oap->start.lnum, TRUE);
2457 firstline = ml_get(oap->start.lnum) + bd.textcol;
2458 if (oap->op_type == OP_APPEND)
2459 firstline += bd.textlen;
2460 pre_textlen = (long)STRLEN(firstline);
2461 }
2462
2463 if (oap->op_type == OP_APPEND)
2464 {
2465 if (oap->block_mode
2466 #ifdef FEAT_VIRTUALEDIT
2467 && curwin->w_cursor.coladd == 0
2468 #endif
2469 )
2470 {
2471 /* Move the cursor to the character right of the block. */
2472 curwin->w_set_curswant = TRUE;
2473 while (*ml_get_cursor() != NUL
2474 && (curwin->w_cursor.col < bd.textcol + bd.textlen))
2475 ++curwin->w_cursor.col;
2476 if (bd.is_short && !bd.is_MAX)
2477 {
2478 /* First line was too short, make it longer and adjust the
2479 * values in "bd". */
2480 if (u_save_cursor() == FAIL)
2481 return;
2482 for (i = 0; i < bd.endspaces; ++i)
2483 ins_char(' ');
2484 bd.textlen += bd.endspaces;
2485 }
2486 }
2487 else
2488 {
2489 curwin->w_cursor = oap->end;
2490 check_cursor_col();
2491
2492 /* Works just like an 'i'nsert on the next character. */
2493 if (!lineempty(curwin->w_cursor.lnum)
2494 && oap->start_vcol != oap->end_vcol)
2495 inc_cursor();
2496 }
2497 }
2498
2499 edit(NUL, FALSE, (linenr_T)count1);
2500
2501 /* If user has moved off this line, we don't know what to do, so do
2502 * nothing.
2503 * Also don't repeat the insert when Insert mode ended with CTRL-C. */
2504 if (curwin->w_cursor.lnum != oap->start.lnum || got_int)
2505 return;
2506
2507 if (oap->block_mode)
2508 {
2509 struct block_def bd2;
2510
2511 /*
2512 * Spaces and tabs in the indent may have changed to other spaces and
2513 * tabs. Get the starting column again and correct the length.
2514 * Don't do this when "$" used, end-of-line will have changed.
2515 */
2516 block_prep(oap, &bd2, oap->start.lnum, TRUE);
2517 if (!bd.is_MAX || bd2.textlen < bd.textlen)
2518 {
2519 if (oap->op_type == OP_APPEND)
2520 {
2521 pre_textlen += bd2.textlen - bd.textlen;
2522 if (bd2.endspaces)
2523 --bd2.textlen;
2524 }
2525 bd.textcol = bd2.textcol;
2526 bd.textlen = bd2.textlen;
2527 }
2528
2529 /*
2530 * Subsequent calls to ml_get() flush the firstline data - take a
2531 * copy of the required string.
2532 */
2533 firstline = ml_get(oap->start.lnum) + bd.textcol;
2534 if (oap->op_type == OP_APPEND)
2535 firstline += bd.textlen;
2536 if ((ins_len = (long)STRLEN(firstline) - pre_textlen) > 0)
2537 {
2538 ins_text = vim_strnsave(firstline, (int)ins_len);
2539 if (ins_text != NULL)
2540 {
2541 /* block handled here */
2542 if (u_save(oap->start.lnum,
2543 (linenr_T)(oap->end.lnum + 1)) == OK)
2544 block_insert(oap, ins_text, (oap->op_type == OP_INSERT),
2545 &bd);
2546
2547 curwin->w_cursor.col = oap->start.col;
2548 check_cursor();
2549 vim_free(ins_text);
2550 }
2551 }
2552 }
2553 }
2554 #endif
2555
2556 /*
2557 * op_change - handle a change operation
2558 *
2559 * return TRUE if edit() returns because of a CTRL-O command
2560 */
2561 int
2562 op_change(oap)
2563 oparg_T *oap;
2564 {
2565 colnr_T l;
2566 int retval;
2567 #ifdef FEAT_VISUALEXTRA
2568 long offset;
2569 linenr_T linenr;
2570 long ins_len;
2571 long pre_textlen = 0;
2572 long pre_indent = 0;
2573 char_u *firstline;
2574 char_u *ins_text, *newp, *oldp;
2575 struct block_def bd;
2576 #endif
2577
2578 l = oap->start.col;
2579 if (oap->motion_type == MLINE)
2580 {
2581 l = 0;
2582 #ifdef FEAT_SMARTINDENT
2583 if (!p_paste && curbuf->b_p_si
2584 # ifdef FEAT_CINDENT
2585 && !curbuf->b_p_cin
2586 # endif
2587 )
2588 can_si = TRUE; /* It's like opening a new line, do si */
2589 #endif
2590 }
2591
2592 /* First delete the text in the region. In an empty buffer only need to
2593 * save for undo */
2594 if (curbuf->b_ml.ml_flags & ML_EMPTY)
2595 {
2596 if (u_save_cursor() == FAIL)
2597 return FALSE;
2598 }
2599 else if (op_delete(oap) == FAIL)
2600 return FALSE;
2601
2602 if ((l > curwin->w_cursor.col) && !lineempty(curwin->w_cursor.lnum)
2603 && !virtual_op)
2604 inc_cursor();
2605
2606 #ifdef FEAT_VISUALEXTRA
2607 /* check for still on same line (<CR> in inserted text meaningless) */
2608 /* skip blank lines too */
2609 if (oap->block_mode)
2610 {
2611 # ifdef FEAT_VIRTUALEDIT
2612 /* Add spaces before getting the current line length. */
2613 if (virtual_op && (curwin->w_cursor.coladd > 0
2614 || gchar_cursor() == NUL))
2615 coladvance_force(getviscol());
2616 # endif
2617 firstline = ml_get(oap->start.lnum);
2618 pre_textlen = (long)STRLEN(firstline);
2619 pre_indent = (long)(skipwhite(firstline) - firstline);
2620 bd.textcol = curwin->w_cursor.col;
2621 }
2622 #endif
2623
2624 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
2625 if (oap->motion_type == MLINE)
2626 fix_indent();
2627 #endif
2628
2629 retval = edit(NUL, FALSE, (linenr_T)1);
2630
2631 #ifdef FEAT_VISUALEXTRA
2632 /*
2633 * In Visual block mode, handle copying the new text to all lines of the
2634 * block.
2635 * Don't repeat the insert when Insert mode ended with CTRL-C.
2636 */
2637 if (oap->block_mode && oap->start.lnum != oap->end.lnum && !got_int)
2638 {
2639 /* Auto-indenting may have changed the indent. If the cursor was past
2640 * the indent, exclude that indent change from the inserted text. */
2641 firstline = ml_get(oap->start.lnum);
2642 if (bd.textcol > (colnr_T)pre_indent)
2643 {
2644 long new_indent = (long)(skipwhite(firstline) - firstline);
2645
2646 pre_textlen += new_indent - pre_indent;
2647 bd.textcol += new_indent - pre_indent;
2648 }
2649
2650 ins_len = (long)STRLEN(firstline) - pre_textlen;
2651 if (ins_len > 0)
2652 {
2653 /* Subsequent calls to ml_get() flush the firstline data - take a
2654 * copy of the inserted text. */
2655 if ((ins_text = alloc_check((unsigned)(ins_len + 1))) != NULL)
2656 {
2657 vim_strncpy(ins_text, firstline + bd.textcol, (size_t)ins_len);
2658 for (linenr = oap->start.lnum + 1; linenr <= oap->end.lnum;
2659 linenr++)
2660 {
2661 block_prep(oap, &bd, linenr, TRUE);
2662 if (!bd.is_short || virtual_op)
2663 {
2664 # ifdef FEAT_VIRTUALEDIT
2665 pos_T vpos;
2666
2667 /* If the block starts in virtual space, count the
2668 * initial coladd offset as part of "startspaces" */
2669 if (bd.is_short)
2670 {
2671 linenr_T lnum = curwin->w_cursor.lnum;
2672
2673 curwin->w_cursor.lnum = linenr;
2674 (void)getvpos(&vpos, oap->start_vcol);
2675 curwin->w_cursor.lnum = lnum;
2676 }
2677 else
2678 vpos.coladd = 0;
2679 # endif
2680 oldp = ml_get(linenr);
2681 newp = alloc_check((unsigned)(STRLEN(oldp)
2682 # ifdef FEAT_VIRTUALEDIT
2683 + vpos.coladd
2684 # endif
2685 + ins_len + 1));
2686 if (newp == NULL)
2687 continue;
2688 /* copy up to block start */
2689 mch_memmove(newp, oldp, (size_t)bd.textcol);
2690 offset = bd.textcol;
2691 # ifdef FEAT_VIRTUALEDIT
2692 copy_spaces(newp + offset, (size_t)vpos.coladd);
2693 offset += vpos.coladd;
2694 # endif
2695 mch_memmove(newp + offset, ins_text, (size_t)ins_len);
2696 offset += ins_len;
2697 oldp += bd.textcol;
2698 STRMOVE(newp + offset, oldp);
2699 ml_replace(linenr, newp, FALSE);
2700 }
2701 }
2702 check_cursor();
2703
2704 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L);
2705 }
2706 vim_free(ins_text);
2707 }
2708 }
2709 #endif
2710
2711 return retval;
2712 }
2713
2714 /*
2715 * set all the yank registers to empty (called from main())
2716 */
2717 void
2718 init_yank()
2719 {
2720 int i;
2721
2722 for (i = 0; i < NUM_REGISTERS; ++i)
2723 y_regs[i].y_array = NULL;
2724 }
2725
2726 #if defined(EXITFREE) || defined(PROTO)
2727 void
2728 clear_registers()
2729 {
2730 int i;
2731
2732 for (i = 0; i < NUM_REGISTERS; ++i)
2733 {
2734 y_current = &y_regs[i];
2735 if (y_current->y_array != NULL)
2736 free_yank_all();
2737 }
2738 }
2739 #endif
2740
2741 /*
2742 * Free "n" lines from the current yank register.
2743 * Called for normal freeing and in case of error.
2744 */
2745 static void
2746 free_yank(n)
2747 long n;
2748 {
2749 if (y_current->y_array != NULL)
2750 {
2751 long i;
2752
2753 for (i = n; --i >= 0; )
2754 {
2755 #ifdef AMIGA /* only for very slow machines */
2756 if ((i & 1023) == 1023) /* this may take a while */
2757 {
2758 /*
2759 * This message should never cause a hit-return message.
2760 * Overwrite this message with any next message.
2761 */
2762 ++no_wait_return;
2763 smsg((char_u *)_("freeing %ld lines"), i + 1);
2764 --no_wait_return;
2765 msg_didout = FALSE;
2766 msg_col = 0;
2767 }
2768 #endif
2769 vim_free(y_current->y_array[i]);
2770 }
2771 vim_free(y_current->y_array);
2772 y_current->y_array = NULL;
2773 #ifdef AMIGA
2774 if (n >= 1000)
2775 MSG("");
2776 #endif
2777 }
2778 }
2779
2780 static void
2781 free_yank_all()
2782 {
2783 free_yank(y_current->y_size);
2784 }
2785
2786 /*
2787 * Yank the text between "oap->start" and "oap->end" into a yank register.
2788 * If we are to append (uppercase register), we first yank into a new yank
2789 * register and then concatenate the old and the new one (so we keep the old
2790 * one in case of out-of-memory).
2791 *
2792 * return FAIL for failure, OK otherwise
2793 */
2794 int
2795 op_yank(oap, deleting, mess)
2796 oparg_T *oap;
2797 int deleting;
2798 int mess;
2799 {
2800 long y_idx; /* index in y_array[] */
2801 struct yankreg *curr; /* copy of y_current */
2802 struct yankreg newreg; /* new yank register when appending */
2803 char_u **new_ptr;
2804 linenr_T lnum; /* current line number */
2805 long j;
2806 int yanktype = oap->motion_type;
2807 long yanklines = oap->line_count;
2808 linenr_T yankendlnum = oap->end.lnum;
2809 char_u *p;
2810 char_u *pnew;
2811 struct block_def bd;
2812
2813 /* check for read-only register */
2814 if (oap->regname != 0 && !valid_yank_reg(oap->regname, TRUE))
2815 {
2816 beep_flush();
2817 return FAIL;
2818 }
2819 if (oap->regname == '_') /* black hole: nothing to do */
2820 return OK;
2821
2822 #ifdef FEAT_CLIPBOARD
2823 if (!clip_star.available && oap->regname == '*')
2824 oap->regname = 0;
2825 else if (!clip_plus.available && oap->regname == '+')
2826 oap->regname = 0;
2827 #endif
2828
2829 if (!deleting) /* op_delete() already set y_current */
2830 get_yank_register(oap->regname, TRUE);
2831
2832 curr = y_current;
2833 /* append to existing contents */
2834 if (y_append && y_current->y_array != NULL)
2835 y_current = &newreg;
2836 else
2837 free_yank_all(); /* free previously yanked lines */
2838
2839 /*
2840 * If the cursor was in column 1 before and after the movement, and the
2841 * operator is not inclusive, the yank is always linewise.
2842 */
2843 if ( oap->motion_type == MCHAR
2844 && oap->start.col == 0
2845 && !oap->inclusive
2846 #ifdef FEAT_VISUAL
2847 && (!oap->is_VIsual || *p_sel == 'o')
2848 && !oap->block_mode
2849 #endif
2850 && oap->end.col == 0
2851 && yanklines > 1)
2852 {
2853 yanktype = MLINE;
2854 --yankendlnum;
2855 --yanklines;
2856 }
2857
2858 y_current->y_size = yanklines;
2859 y_current->y_type = yanktype; /* set the yank register type */
2860 #ifdef FEAT_VISUAL
2861 y_current->y_width = 0;
2862 #endif
2863 y_current->y_array = (char_u **)lalloc_clear((long_u)(sizeof(char_u *) *
2864 yanklines), TRUE);
2865
2866 if (y_current->y_array == NULL)
2867 {
2868 y_current = curr;
2869 return FAIL;
2870 }
2871
2872 y_idx = 0;
2873 lnum = oap->start.lnum;
2874
2875 #ifdef FEAT_VISUAL
2876 if (oap->block_mode)
2877 {
2878 /* Visual block mode */
2879 y_current->y_type = MBLOCK; /* set the yank register type */
2880 y_current->y_width = oap->end_vcol - oap->start_vcol;
2881
2882 if (curwin->w_curswant == MAXCOL && y_current->y_width > 0)
2883 y_current->y_width--;
2884 }
2885 #endif
2886
2887 for ( ; lnum <= yankendlnum; lnum++, y_idx++)
2888 {
2889 switch (y_current->y_type)
2890 {
2891 #ifdef FEAT_VISUAL
2892 case MBLOCK:
2893 block_prep(oap, &bd, lnum, FALSE);
2894 if (yank_copy_line(&bd, y_idx) == FAIL)
2895 goto fail;
2896 break;
2897 #endif
2898
2899 case MLINE:
2900 if ((y_current->y_array[y_idx] =
2901 vim_strsave(ml_get(lnum))) == NULL)
2902 goto fail;
2903 break;
2904
2905 case MCHAR:
2906 {
2907 colnr_T startcol = 0, endcol = MAXCOL;
2908 #ifdef FEAT_VIRTUALEDIT
2909 int is_oneChar = FALSE;
2910 colnr_T cs, ce;
2911 #endif
2912 p = ml_get(lnum);
2913 bd.startspaces = 0;
2914 bd.endspaces = 0;
2915
2916 if (lnum == oap->start.lnum)
2917 {
2918 startcol = oap->start.col;
2919 #ifdef FEAT_VIRTUALEDIT
2920 if (virtual_op)
2921 {
2922 getvcol(curwin, &oap->start, &cs, NULL, &ce);
2923 if (ce != cs && oap->start.coladd > 0)
2924 {
2925 /* Part of a tab selected -- but don't
2926 * double-count it. */
2927 bd.startspaces = (ce - cs + 1)
2928 - oap->start.coladd;
2929 startcol++;
2930 }
2931 }
2932 #endif
2933 }
2934
2935 if (lnum == oap->end.lnum)
2936 {
2937 endcol = oap->end.col;
2938 #ifdef FEAT_VIRTUALEDIT
2939 if (virtual_op)
2940 {
2941 getvcol(curwin, &oap->end, &cs, NULL, &ce);
2942 if (p[endcol] == NUL || (cs + oap->end.coladd < ce
2943 # ifdef FEAT_MBYTE
2944 /* Don't add space for double-wide
2945 * char; endcol will be on last byte
2946 * of multi-byte char. */
2947 && (*mb_head_off)(p, p + endcol) == 0
2948 # endif
2949 ))
2950 {
2951 if (oap->start.lnum == oap->end.lnum
2952 && oap->start.col == oap->end.col)
2953 {
2954 /* Special case: inside a single char */
2955 is_oneChar = TRUE;
2956 bd.startspaces = oap->end.coladd
2957 - oap->start.coladd + oap->inclusive;
2958 endcol = startcol;
2959 }
2960 else
2961 {
2962 bd.endspaces = oap->end.coladd
2963 + oap->inclusive;
2964 endcol -= oap->inclusive;
2965 }
2966 }
2967 }
2968 #endif
2969 }
2970 if (startcol > endcol
2971 #ifdef FEAT_VIRTUALEDIT
2972 || is_oneChar
2973 #endif
2974 )
2975 bd.textlen = 0;
2976 else
2977 {
2978 if (endcol == MAXCOL)
2979 endcol = (colnr_T)STRLEN(p);
2980 bd.textlen = endcol - startcol + oap->inclusive;
2981 }
2982 bd.textstart = p + startcol;
2983 if (yank_copy_line(&bd, y_idx) == FAIL)
2984 goto fail;
2985 break;
2986 }
2987 /* NOTREACHED */
2988 }
2989 }
2990
2991 if (curr != y_current) /* append the new block to the old block */
2992 {
2993 new_ptr = (char_u **)lalloc((long_u)(sizeof(char_u *) *
2994 (curr->y_size + y_current->y_size)), TRUE);
2995 if (new_ptr == NULL)
2996 goto fail;
2997 for (j = 0; j < curr->y_size; ++j)
2998 new_ptr[j] = curr->y_array[j];
2999 vim_free(curr->y_array);
3000 curr->y_array = new_ptr;
3001
3002 if (yanktype == MLINE) /* MLINE overrides MCHAR and MBLOCK */
3003 curr->y_type = MLINE;
3004
3005 /* Concatenate the last line of the old block with the first line of
3006 * the new block, unless being Vi compatible. */
3007 if (curr->y_type == MCHAR && vim_strchr(p_cpo, CPO_REGAPPEND) == NULL)
3008 {
3009 pnew = lalloc((long_u)(STRLEN(curr->y_array[curr->y_size - 1])
3010 + STRLEN(y_current->y_array[0]) + 1), TRUE);
3011 if (pnew == NULL)
3012 {
3013 y_idx = y_current->y_size - 1;
3014 goto fail;
3015 }
3016 STRCPY(pnew, curr->y_array[--j]);
3017 STRCAT(pnew, y_current->y_array[0]);
3018 vim_free(curr->y_array[j]);
3019 vim_free(y_current->y_array[0]);
3020 curr->y_array[j++] = pnew;
3021 y_idx = 1;
3022 }
3023 else
3024 y_idx = 0;
3025 while (y_idx < y_current->y_size)
3026 curr->y_array[j++] = y_current->y_array[y_idx++];
3027 curr->y_size = j;
3028 vim_free(y_current->y_array);
3029 y_current = curr;
3030 }
3031 if (mess) /* Display message about yank? */
3032 {
3033 if (yanktype == MCHAR
3034 #ifdef FEAT_VISUAL
3035 && !oap->block_mode
3036 #endif
3037 && yanklines == 1)
3038 yanklines = 0;
3039 /* Some versions of Vi use ">=" here, some don't... */
3040 if (yanklines > p_report)
3041 {
3042 /* redisplay now, so message is not deleted */
3043 update_topline_redraw();
3044 if (yanklines == 1)
3045 {
3046 #ifdef FEAT_VISUAL
3047 if (oap->block_mode)
3048 MSG(_("block of 1 line yanked"));
3049 else
3050 #endif
3051 MSG(_("1 line yanked"));
3052 }
3053 #ifdef FEAT_VISUAL
3054 else if (oap->block_mode)
3055 smsg((char_u *)_("block of %ld lines yanked"), yanklines);
3056 #endif
3057 else
3058 smsg((char_u *)_("%ld lines yanked"), yanklines);
3059 }
3060 }
3061
3062 /*
3063 * Set "'[" and "']" marks.
3064 */
3065 curbuf->b_op_start = oap->start;
3066 curbuf->b_op_end = oap->end;
3067 if (yanktype == MLINE
3068 #ifdef FEAT_VISUAL
3069 && !oap->block_mode
3070 #endif
3071 )
3072 {
3073 curbuf->b_op_start.col = 0;
3074 curbuf->b_op_end.col = MAXCOL;
3075 }
3076
3077 #ifdef FEAT_CLIPBOARD
3078 /*
3079 * If we were yanking to the '*' register, send result to clipboard.
3080 * If no register was specified, and "unnamed" in 'clipboard', make a copy
3081 * to the '*' register.
3082 */
3083 if (clip_star.available
3084 && (curr == &(y_regs[STAR_REGISTER])
3085 || (!deleting && oap->regname == 0 && clip_unnamed)))
3086 {
3087 if (curr != &(y_regs[STAR_REGISTER]))
3088 /* Copy the text from register 0 to the clipboard register. */
3089 copy_yank_reg(&(y_regs[STAR_REGISTER]));
3090
3091 clip_own_selection(&clip_star);
3092 clip_gen_set_selection(&clip_star);
3093 }
3094
3095 # ifdef FEAT_X11
3096 /*
3097 * If we were yanking to the '+' register, send result to selection.
3098 * Also copy to the '*' register, in case auto-select is off.
3099 */
3100 else if (clip_plus.available && curr == &(y_regs[PLUS_REGISTER]))
3101 {
3102 /* No need to copy to * register upon 'unnamed' now - see below */
3103 clip_own_selection(&clip_plus);
3104 clip_gen_set_selection(&clip_plus);
3105 if (!clip_isautosel())
3106 {
3107 copy_yank_reg(&(y_regs[STAR_REGISTER]));
3108 clip_own_selection(&clip_star);
3109 clip_gen_set_selection(&clip_star);
3110 }
3111 }
3112 # endif
3113 #endif
3114
3115 return OK;
3116
3117 fail: /* free the allocated lines */
3118 free_yank(y_idx + 1);
3119 y_current = curr;
3120 return FAIL;
3121 }
3122
3123 static int
3124 yank_copy_line(bd, y_idx)
3125 struct block_def *bd;
3126 long y_idx;
3127 {
3128 char_u *pnew;
3129
3130 if ((pnew = alloc(bd->startspaces + bd->endspaces + bd->textlen + 1))
3131 == NULL)
3132 return FAIL;
3133 y_current->y_array[y_idx] = pnew;
3134 copy_spaces(pnew, (size_t)bd->startspaces);
3135 pnew += bd->startspaces;
3136 mch_memmove(pnew, bd->textstart, (size_t)bd->textlen);
3137 pnew += bd->textlen;
3138 copy_spaces(pnew, (size_t)bd->endspaces);
3139 pnew += bd->endspaces;
3140 *pnew = NUL;
3141 return OK;
3142 }
3143
3144 #ifdef FEAT_CLIPBOARD
3145 /*
3146 * Make a copy of the y_current register to register "reg".
3147 */
3148 static void
3149 copy_yank_reg(reg)
3150 struct yankreg *reg;
3151 {
3152 struct yankreg *curr = y_current;
3153 long j;
3154
3155 y_current = reg;
3156 free_yank_all();
3157 *y_current = *curr;
3158 y_current->y_array = (char_u **)lalloc_clear(
3159 (long_u)(sizeof(char_u *) * y_current->y_size), TRUE);
3160 if (y_current->y_array == NULL)
3161 y_current->y_size = 0;
3162 else
3163 for (j = 0; j < y_current->y_size; ++j)
3164 if ((y_current->y_array[j] = vim_strsave(curr->y_array[j])) == NULL)
3165 {
3166 free_yank(j);
3167 y_current->y_size = 0;
3168 break;
3169 }
3170 y_current = curr;
3171 }
3172 #endif
3173
3174 /*
3175 * Put contents of register "regname" into the text.
3176 * Caller must check "regname" to be valid!
3177 * "flags": PUT_FIXINDENT make indent look nice
3178 * PUT_CURSEND leave cursor after end of new text
3179 * PUT_LINE force linewise put (":put")
3180 */
3181 void
3182 do_put(regname, dir, count, flags)
3183 int regname;
3184 int dir; /* BACKWARD for 'P', FORWARD for 'p' */
3185 long count;
3186 int flags;
3187 {
3188 char_u *ptr;
3189 char_u *newp, *oldp;
3190 int yanklen;
3191 int totlen = 0; /* init for gcc */
3192 linenr_T lnum;
3193 colnr_T col;
3194 long i; /* index in y_array[] */
3195 int y_type;
3196 long y_size;
3197 #ifdef FEAT_VISUAL
3198 int oldlen;
3199 long y_width = 0;
3200 colnr_T vcol;
3201 int delcount;
3202 int incr = 0;
3203 long j;
3204 struct block_def bd;
3205 #endif
3206 char_u **y_array = NULL;
3207 long nr_lines = 0;
3208 pos_T new_cursor;
3209 int indent;
3210 int orig_indent = 0; /* init for gcc */
3211 int indent_diff = 0; /* init for gcc */
3212 int first_indent = TRUE;
3213 int lendiff = 0;
3214 pos_T old_pos;
3215 char_u *insert_string = NULL;
3216 int allocated = FALSE;
3217 long cnt;
3218
3219 #ifdef FEAT_CLIPBOARD
3220 /* Adjust register name for "unnamed" in 'clipboard'. */
3221 adjust_clip_reg(&regname);
3222 (void)may_get_selection(regname);
3223 #endif
3224
3225 if (flags & PUT_FIXINDENT)
3226 orig_indent = get_indent();
3227
3228 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */
3229 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */
3230
3231 /*
3232 * Using inserted text works differently, because the register includes
3233 * special characters (newlines, etc.).
3234 */
3235 if (regname == '.')
3236 {
3237 (void)stuff_inserted((dir == FORWARD ? (count == -1 ? 'o' : 'a') :
3238 (count == -1 ? 'O' : 'i')), count, FALSE);
3239 /* Putting the text is done later, so can't really move the cursor to
3240 * the next character. Use "l" to simulate it. */
3241 if ((flags & PUT_CURSEND) && gchar_cursor() != NUL)
3242 stuffcharReadbuff('l');
3243 return;
3244 }
3245
3246 /*
3247 * For special registers '%' (file name), '#' (alternate file name) and
3248 * ':' (last command line), etc. we have to create a fake yank register.
3249 */
3250 if (get_spec_reg(regname, &insert_string, &allocated, TRUE))
3251 {
3252 if (insert_string == NULL)
3253 return;
3254 }
3255
3256 if (insert_string != NULL)
3257 {
3258 y_type = MCHAR;
3259 #ifdef FEAT_EVAL
3260 if (regname == '=')
3261 {
3262 /* For the = register we need to split the string at NL
3263 * characters. */
3264 /* Loop twice: count the number of lines and save them. */
3265 for (;;)
3266 {
3267 y_size = 0;
3268 ptr = insert_string;
3269 while (ptr != NULL)
3270 {
3271 if (y_array != NULL)
3272 y_array[y_size] = ptr;
3273 ++y_size;
3274 ptr = vim_strchr(ptr, '\n');
3275 if (ptr != NULL)
3276 {
3277 if (y_array != NULL)
3278 *ptr = NUL;
3279 ++ptr;
3280 /* A trailing '\n' makes the string linewise */
3281 if (*ptr == NUL)
3282 {
3283 y_type = MLINE;
3284 break;
3285 }
3286 }
3287 }
3288 if (y_array != NULL)
3289 break;
3290 y_array = (char_u **)alloc((unsigned)
3291 (y_size * sizeof(char_u *)));
3292 if (y_array == NULL)
3293 goto end;
3294 }
3295 }
3296 else
3297 #endif
3298 {
3299 y_size = 1; /* use fake one-line yank register */
3300 y_array = &insert_string;
3301 }
3302 }
3303 else
3304 {
3305 get_yank_register(regname, FALSE);
3306
3307 y_type = y_current->y_type;
3308 #ifdef FEAT_VISUAL
3309 y_width = y_current->y_width;
3310 #endif
3311 y_size = y_current->y_size;
3312 y_array = y_current->y_array;
3313 }
3314
3315 #ifdef FEAT_VISUAL
3316 if (y_type == MLINE)
3317 {
3318 if (flags & PUT_LINE_SPLIT)
3319 {
3320 /* "p" or "P" in Visual mode: split the lines to put the text in
3321 * between. */
3322 if (u_save_cursor() == FAIL)
3323 goto end;
3324 ptr = vim_strsave(ml_get_cursor());
3325 if (ptr == NULL)
3326 goto end;
3327 ml_append(curwin->w_cursor.lnum, ptr, (colnr_T)0, FALSE);
3328 vim_free(ptr);
3329
3330 ptr = vim_strnsave(ml_get_curline(), curwin->w_cursor.col);
3331 if (ptr == NULL)
3332 goto end;
3333 ml_replace(curwin->w_cursor.lnum, ptr, FALSE);
3334 ++nr_lines;
3335 dir = FORWARD;
3336 }
3337 if (flags & PUT_LINE_FORWARD)
3338 {
3339 /* Must be "p" for a Visual block, put lines below the block. */
3340 curwin->w_cursor = curbuf->b_visual.vi_end;
3341 dir = FORWARD;
3342 }
3343 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */
3344 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */
3345 }
3346 #endif
3347
3348 if (flags & PUT_LINE) /* :put command or "p" in Visual line mode. */
3349 y_type = MLINE;
3350
3351 if (y_size == 0 || y_array == NULL)
3352 {
3353 EMSG2(_("E353: Nothing in register %s"),
3354 regname == 0 ? (char_u *)"\"" : transchar(regname));
3355 goto end;
3356 }
3357
3358 #ifdef FEAT_VISUAL
3359 if (y_type == MBLOCK)
3360 {
3361 lnum = curwin->w_cursor.lnum + y_size + 1;
3362 if (lnum > curbuf->b_ml.ml_line_count)
3363 lnum = curbuf->b_ml.ml_line_count + 1;
3364 if (u_save(curwin->w_cursor.lnum - 1, lnum) == FAIL)
3365 goto end;
3366 }
3367 else
3368 #endif
3369 if (y_type == MLINE)
3370 {
3371 lnum = curwin->w_cursor.lnum;
3372 #ifdef FEAT_FOLDING
3373 /* Correct line number for closed fold. Don't move the cursor yet,
3374 * u_save() uses it. */
3375 if (dir == BACKWARD)
3376 (void)hasFolding(lnum, &lnum, NULL);
3377 else
3378 (void)hasFolding(lnum, NULL, &lnum);
3379 #endif
3380 if (dir == FORWARD)
3381 ++lnum;
3382 if (u_save(lnum - 1, lnum) == FAIL)
3383 goto end;
3384 #ifdef FEAT_FOLDING
3385 if (dir == FORWARD)
3386 curwin->w_cursor.lnum = lnum - 1;
3387 else
3388 curwin->w_cursor.lnum = lnum;
3389 curbuf->b_op_start = curwin->w_cursor; /* for mark_adjust() */
3390 #endif
3391 }
3392 else if (u_save_cursor() == FAIL)
3393 goto end;
3394
3395 yanklen = (int)STRLEN(y_array[0]);
3396
3397 #ifdef FEAT_VIRTUALEDIT
3398 if (ve_flags == VE_ALL && y_type == MCHAR)
3399 {
3400 if (gchar_cursor() == TAB)
3401 {
3402 /* Don't need to insert spaces when "p" on the last position of a
3403 * tab or "P" on the first position. */
3404 if (dir == FORWARD
3405 ? (int)curwin->w_cursor.coladd < curbuf->b_p_ts - 1
3406 : curwin->w_cursor.coladd > 0)
3407 coladvance_force(getviscol());
3408 else
3409 curwin->w_cursor.coladd = 0;
3410 }
3411 else if (curwin->w_cursor.coladd > 0 || gchar_cursor() == NUL)
3412 coladvance_force(getviscol() + (dir == FORWARD));
3413 }
3414 #endif
3415
3416 lnum = curwin->w_cursor.lnum;
3417 col = curwin->w_cursor.col;
3418
3419 #ifdef FEAT_VISUAL
3420 /*
3421 * Block mode
3422 */
3423 if (y_type == MBLOCK)
3424 {
3425 char c = gchar_cursor();
3426 colnr_T endcol2 = 0;
3427
3428 if (dir == FORWARD && c != NUL)
3429 {
3430 #ifdef FEAT_VIRTUALEDIT
3431 if (ve_flags == VE_ALL)
3432 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2);
3433 else
3434 #endif
3435 getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
3436
3437 #ifdef FEAT_MBYTE
3438 if (has_mbyte)
3439 /* move to start of next multi-byte character */
3440 curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor());
3441 else
3442 #endif
3443 #ifdef FEAT_VIRTUALEDIT
3444 if (c != TAB || ve_flags != VE_ALL)
3445 #endif
3446 ++curwin->w_cursor.col;
3447 ++col;
3448 }
3449 else
3450 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2);
3451
3452 #ifdef FEAT_VIRTUALEDIT
3453 col += curwin->w_cursor.coladd;
3454 if (ve_flags == VE_ALL
3455 && (curwin->w_cursor.coladd > 0
3456 || endcol2 == curwin->w_cursor.col))
3457 {
3458 if (dir == FORWARD && c == NUL)
3459 ++col;
3460 if (dir != FORWARD && c != NUL)
3461 ++curwin->w_cursor.col;
3462 if (c == TAB)
3463 {
3464 if (dir == BACKWARD && curwin->w_cursor.col)
3465 curwin->w_cursor.col--;
3466 if (dir == FORWARD && col - 1 == endcol2)
3467 curwin->w_cursor.col++;
3468 }
3469 }
3470 curwin->w_cursor.coladd = 0;
3471 #endif
3472 bd.textcol = 0;
3473 for (i = 0; i < y_size; ++i)
3474 {
3475 int spaces;
3476 char shortline;
3477
3478 bd.startspaces = 0;
3479 bd.endspaces = 0;
3480 vcol = 0;
3481 delcount = 0;
3482
3483 /* add a new line */
3484 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
3485 {
3486 if (ml_append(curbuf->b_ml.ml_line_count, (char_u *)"",
3487 (colnr_T)1, FALSE) == FAIL)
3488 break;
3489 ++nr_lines;
3490 }
3491 /* get the old line and advance to the position to insert at */
3492 oldp = ml_get_curline();
3493 oldlen = (int)STRLEN(oldp);
3494 for (ptr = oldp; vcol < col && *ptr; )
3495 {
3496 /* Count a tab for what it's worth (if list mode not on) */
3497 incr = lbr_chartabsize_adv(&ptr, (colnr_T)vcol);
3498 vcol += incr;
3499 }
3500 bd.textcol = (colnr_T)(ptr - oldp);
3501
3502 shortline = (vcol < col) || (vcol == col && !*ptr) ;
3503
3504 if (vcol < col) /* line too short, padd with spaces */
3505 bd.startspaces = col - vcol;
3506 else if (vcol > col)
3507 {
3508 bd.endspaces = vcol - col;
3509 bd.startspaces = incr - bd.endspaces;
3510 --bd.textcol;
3511 delcount = 1;
3512 #ifdef FEAT_MBYTE
3513 if (has_mbyte)
3514 bd.textcol -= (*mb_head_off)(oldp, oldp + bd.textcol);
3515 #endif
3516 if (oldp[bd.textcol] != TAB)
3517 {
3518 /* Only a Tab can be split into spaces. Other
3519 * characters will have to be moved to after the
3520 * block, causing misalignment. */
3521 delcount = 0;
3522 bd.endspaces = 0;
3523 }
3524 }
3525
3526 yanklen = (int)STRLEN(y_array[i]);
3527
3528 /* calculate number of spaces required to fill right side of block*/
3529 spaces = y_width + 1;
3530 for (j = 0; j < yanklen; j++)
3531 spaces -= lbr_chartabsize(&y_array[i][j], 0);
3532 if (spaces < 0)
3533 spaces = 0;
3534
3535 /* insert the new text */
3536 totlen = count * (yanklen + spaces) + bd.startspaces + bd.endspaces;
3537 newp = alloc_check((unsigned)totlen + oldlen + 1);
3538 if (newp == NULL)
3539 break;
3540 /* copy part up to cursor to new line */
3541 ptr = newp;
3542 mch_memmove(ptr, oldp, (size_t)bd.textcol);
3543 ptr += bd.textcol;
3544 /* may insert some spaces before the new text */
3545 copy_spaces(ptr, (size_t)bd.startspaces);
3546 ptr += bd.startspaces;
3547 /* insert the new text */
3548 for (j = 0; j < count; ++j)
3549 {
3550 mch_memmove(ptr, y_array[i], (size_t)yanklen);
3551 ptr += yanklen;
3552
3553 /* insert block's trailing spaces only if there's text behind */
3554 if ((j < count - 1 || !shortline) && spaces)
3555 {
3556 copy_spaces(ptr, (size_t)spaces);
3557 ptr += spaces;
3558 }
3559 }
3560 /* may insert some spaces after the new text */
3561 copy_spaces(ptr, (size_t)bd.endspaces);
3562 ptr += bd.endspaces;
3563 /* move the text after the cursor to the end of the line. */
3564 mch_memmove(ptr, oldp + bd.textcol + delcount,
3565 (size_t)(oldlen - bd.textcol - delcount + 1));
3566 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
3567
3568 ++curwin->w_cursor.lnum;
3569 if (i == 0)
3570 curwin->w_cursor.col += bd.startspaces;
3571 }
3572
3573 changed_lines(lnum, 0, curwin->w_cursor.lnum, nr_lines);
3574
3575 /* Set '[ mark. */
3576 curbuf->b_op_start = curwin->w_cursor;
3577 curbuf->b_op_start.lnum = lnum;
3578
3579 /* adjust '] mark */
3580 curbuf->b_op_end.lnum = curwin->w_cursor.lnum - 1;
3581 curbuf->b_op_end.col = bd.textcol + totlen - 1;
3582 # ifdef FEAT_VIRTUALEDIT
3583 curbuf->b_op_end.coladd = 0;
3584 # endif
3585 if (flags & PUT_CURSEND)
3586 {
3587 colnr_T len;
3588
3589 curwin->w_cursor = curbuf->b_op_end;
3590 curwin->w_cursor.col++;
3591
3592 /* in Insert mode we might be after the NUL, correct for that */
3593 len = (colnr_T)STRLEN(ml_get_curline());
3594 if (curwin->w_cursor.col > len)
3595 curwin->w_cursor.col = len;
3596 }
3597 else
3598 curwin->w_cursor.lnum = lnum;
3599 }
3600 else
3601 #endif
3602 {
3603 /*
3604 * Character or Line mode
3605 */
3606 if (y_type == MCHAR)
3607 {
3608 /* if type is MCHAR, FORWARD is the same as BACKWARD on the next
3609 * char */
3610 if (dir == FORWARD && gchar_cursor() != NUL)
3611 {
3612 #ifdef FEAT_MBYTE
3613 if (has_mbyte)
3614 {
3615 int bytelen = (*mb_ptr2len)(ml_get_cursor());
3616
3617 /* put it on the next of the multi-byte character. */
3618 col += bytelen;
3619 if (yanklen)
3620 {
3621 curwin->w_cursor.col += bytelen;
3622 curbuf->b_op_end.col += bytelen;
3623 }
3624 }
3625 else
3626 #endif
3627 {
3628 ++col;
3629 if (yanklen)
3630 {
3631 ++curwin->w_cursor.col;
3632 ++curbuf->b_op_end.col;
3633 }
3634 }
3635 }
3636 curbuf->b_op_start = curwin->w_cursor;
3637 }
3638 /*
3639 * Line mode: BACKWARD is the same as FORWARD on the previous line
3640 */
3641 else if (dir == BACKWARD)
3642 --lnum;
3643 new_cursor = curwin->w_cursor;
3644
3645 /*
3646 * simple case: insert into current line
3647 */
3648 if (y_type == MCHAR && y_size == 1)
3649 {
3650 totlen = count * yanklen;
3651 if (totlen)
3652 {
3653 oldp = ml_get(lnum);
3654 newp = alloc_check((unsigned)(STRLEN(oldp) + totlen + 1));
3655 if (newp == NULL)
3656 goto end; /* alloc() will give error message */
3657 mch_memmove(newp, oldp, (size_t)col);
3658 ptr = newp + col;
3659 for (i = 0; i < count; ++i)
3660 {
3661 mch_memmove(ptr, y_array[0], (size_t)yanklen);
3662 ptr += yanklen;
3663 }
3664 STRMOVE(ptr, oldp + col);
3665 ml_replace(lnum, newp, FALSE);
3666 /* Put cursor on last putted char. */
3667 curwin->w_cursor.col += (colnr_T)(totlen - 1);
3668 }
3669 curbuf->b_op_end = curwin->w_cursor;
3670 /* For "CTRL-O p" in Insert mode, put cursor after last char */
3671 if (totlen && (restart_edit != 0 || (flags & PUT_CURSEND)))
3672 ++curwin->w_cursor.col;
3673 changed_bytes(lnum, col);
3674 }
3675 else
3676 {
3677 /*
3678 * Insert at least one line. When y_type is MCHAR, break the first
3679 * line in two.
3680 */
3681 for (cnt = 1; cnt <= count; ++cnt)
3682 {
3683 i = 0;
3684 if (y_type == MCHAR)
3685 {
3686 /*
3687 * Split the current line in two at the insert position.
3688 * First insert y_array[size - 1] in front of second line.
3689 * Then append y_array[0] to first line.
3690 */
3691 lnum = new_cursor.lnum;
3692 ptr = ml_get(lnum) + col;
3693 totlen = (int)STRLEN(y_array[y_size - 1]);
3694 newp = alloc_check((unsigned)(STRLEN(ptr) + totlen + 1));
3695 if (newp == NULL)
3696 goto error;
3697 STRCPY(newp, y_array[y_size - 1]);
3698 STRCAT(newp, ptr);
3699 /* insert second line */
3700 ml_append(lnum, newp, (colnr_T)0, FALSE);
3701 vim_free(newp);
3702
3703 oldp = ml_get(lnum);
3704 newp = alloc_check((unsigned)(col + yanklen + 1));
3705 if (newp == NULL)
3706 goto error;
3707 /* copy first part of line */
3708 mch_memmove(newp, oldp, (size_t)col);
3709 /* append to first line */
3710 mch_memmove(newp + col, y_array[0], (size_t)(yanklen + 1));
3711 ml_replace(lnum, newp, FALSE);
3712
3713 curwin->w_cursor.lnum = lnum;
3714 i = 1;
3715 }
3716
3717 for (; i < y_size; ++i)
3718 {
3719 if ((y_type != MCHAR || i < y_size - 1)
3720 && ml_append(lnum, y_array[i], (colnr_T)0, FALSE)
3721 == FAIL)
3722 goto error;
3723 lnum++;
3724 ++nr_lines;
3725 if (flags & PUT_FIXINDENT)
3726 {
3727 old_pos = curwin->w_cursor;
3728 curwin->w_cursor.lnum = lnum;
3729 ptr = ml_get(lnum);
3730 if (cnt == count && i == y_size - 1)
3731 lendiff = (int)STRLEN(ptr);
3732 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
3733 if (*ptr == '#' && preprocs_left())
3734 indent = 0; /* Leave # lines at start */
3735 else
3736 #endif
3737 if (*ptr == NUL)
3738 indent = 0; /* Ignore empty lines */
3739 else if (first_indent)
3740 {
3741 indent_diff = orig_indent - get_indent();
3742 indent = orig_indent;
3743 first_indent = FALSE;
3744 }
3745 else if ((indent = get_indent() + indent_diff) < 0)
3746 indent = 0;
3747 (void)set_indent(indent, 0);
3748 curwin->w_cursor = old_pos;
3749 /* remember how many chars were removed */
3750 if (cnt == count && i == y_size - 1)
3751 lendiff -= (int)STRLEN(ml_get(lnum));
3752 }
3753 }
3754 }
3755
3756 error:
3757 /* Adjust marks. */
3758 if (y_type == MLINE)
3759 {
3760 curbuf->b_op_start.col = 0;
3761 if (dir == FORWARD)
3762 curbuf->b_op_start.lnum++;
3763 }
3764 mark_adjust(curbuf->b_op_start.lnum + (y_type == MCHAR),
3765 (linenr_T)MAXLNUM, nr_lines, 0L);
3766
3767 /* note changed text for displaying and folding */
3768 if (y_type == MCHAR)
3769 changed_lines(curwin->w_cursor.lnum, col,
3770 curwin->w_cursor.lnum + 1, nr_lines);
3771 else
3772 changed_lines(curbuf->b_op_start.lnum, 0,
3773 curbuf->b_op_start.lnum, nr_lines);
3774
3775 /* put '] mark at last inserted character */
3776 curbuf->b_op_end.lnum = lnum;
3777 /* correct length for change in indent */
3778 col = (colnr_T)STRLEN(y_array[y_size - 1]) - lendiff;
3779 if (col > 1)
3780 curbuf->b_op_end.col = col - 1;
3781 else
3782 curbuf->b_op_end.col = 0;
3783
3784 if (flags & PUT_CURSLINE)
3785 {
3786 /* ":put": put cursor on last inserted line */
3787 curwin->w_cursor.lnum = lnum;
3788 beginline(BL_WHITE | BL_FIX);
3789 }
3790 else if (flags & PUT_CURSEND)
3791 {
3792 /* put cursor after inserted text */
3793 if (y_type == MLINE)
3794 {
3795 if (lnum >= curbuf->b_ml.ml_line_count)
3796 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
3797 else
3798 curwin->w_cursor.lnum = lnum + 1;
3799 curwin->w_cursor.col = 0;
3800 }
3801 else
3802 {
3803 curwin->w_cursor.lnum = lnum;
3804 curwin->w_cursor.col = col;
3805 }
3806 }
3807 else if (y_type == MLINE)
3808 {
3809 /* put cursor on first non-blank in first inserted line */
3810 curwin->w_cursor.col = 0;
3811 if (dir == FORWARD)
3812 ++curwin->w_cursor.lnum;
3813 beginline(BL_WHITE | BL_FIX);
3814 }
3815 else /* put cursor on first inserted character */
3816 curwin->w_cursor = new_cursor;
3817 }
3818 }
3819
3820 msgmore(nr_lines);
3821 curwin->w_set_curswant = TRUE;
3822
3823 end:
3824 if (allocated)
3825 vim_free(insert_string);
3826 if (regname == '=')
3827 vim_free(y_array);
3828
3829 /* If the cursor is past the end of the line put it at the end. */
3830 adjust_cursor_eol();
3831 }
3832
3833 /*
3834 * When the cursor is on the NUL past the end of the line and it should not be
3835 * there move it left.
3836 */
3837 void
3838 adjust_cursor_eol()
3839 {
3840 if (curwin->w_cursor.col > 0
3841 && gchar_cursor() == NUL
3842 #ifdef FEAT_VIRTUALEDIT
3843 && (ve_flags & VE_ONEMORE) == 0
3844 #endif
3845 && !(restart_edit || (State & INSERT)))
3846 {
3847 /* Put the cursor on the last character in the line. */
3848 dec_cursor();
3849
3850 #ifdef FEAT_VIRTUALEDIT
3851 if (ve_flags == VE_ALL)
3852 {
3853 colnr_T scol, ecol;
3854
3855 /* Coladd is set to the width of the last character. */
3856 getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
3857 curwin->w_cursor.coladd = ecol - scol + 1;
3858 }
3859 #endif
3860 }
3861 }
3862
3863 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT) || defined(PROTO)
3864 /*
3865 * Return TRUE if lines starting with '#' should be left aligned.
3866 */
3867 int
3868 preprocs_left()
3869 {
3870 return
3871 # ifdef FEAT_SMARTINDENT
3872 # ifdef FEAT_CINDENT
3873 (curbuf->b_p_si && !curbuf->b_p_cin) ||
3874 # else
3875 curbuf->b_p_si
3876 # endif
3877 # endif
3878 # ifdef FEAT_CINDENT
3879 (curbuf->b_p_cin && in_cinkeys('#', ' ', TRUE))
3880 # endif
3881 ;
3882 }
3883 #endif
3884
3885 /* Return the character name of the register with the given number */
3886 int
3887 get_register_name(num)
3888 int num;
3889 {
3890 if (num == -1)
3891 return '"';
3892 else if (num < 10)
3893 return num + '0';
3894 else if (num == DELETION_REGISTER)
3895 return '-';
3896 #ifdef FEAT_CLIPBOARD
3897 else if (num == STAR_REGISTER)
3898 return '*';
3899 else if (num == PLUS_REGISTER)
3900 return '+';
3901 #endif
3902 else
3903 {
3904 #ifdef EBCDIC
3905 int i;
3906
3907 /* EBCDIC is really braindead ... */
3908 i = 'a' + (num - 10);
3909 if (i > 'i')
3910 i += 7;
3911 if (i > 'r')
3912 i += 8;
3913 return i;
3914 #else
3915 return num + 'a' - 10;
3916 #endif
3917 }
3918 }
3919
3920 /*
3921 * ":dis" and ":registers": Display the contents of the yank registers.
3922 */
3923 void
3924 ex_display(eap)
3925 exarg_T *eap;
3926 {
3927 int i, n;
3928 long j;
3929 char_u *p;
3930 struct yankreg *yb;
3931 int name;
3932 int attr;
3933 char_u *arg = eap->arg;
3934 #ifdef FEAT_MBYTE
3935 int clen;
3936 #else
3937 # define clen 1
3938 #endif
3939
3940 if (arg != NULL && *arg == NUL)
3941 arg = NULL;
3942 attr = hl_attr(HLF_8);
3943
3944 /* Highlight title */
3945 MSG_PUTS_TITLE(_("\n--- Registers ---"));
3946 for (i = -1; i < NUM_REGISTERS && !got_int; ++i)
3947 {
3948 name = get_register_name(i);
3949 if (arg != NULL && vim_strchr(arg, name) == NULL)
3950 continue; /* did not ask for this register */
3951
3952 #ifdef FEAT_CLIPBOARD
3953 /* Adjust register name for "unnamed" in 'clipboard'.
3954 * When it's a clipboard register, fill it with the current contents
3955 * of the clipboard. */
3956 adjust_clip_reg(&name);
3957 (void)may_get_selection(name);
3958 #endif
3959
3960 if (i == -1)
3961 {
3962 if (y_previous != NULL)
3963 yb = y_previous;
3964 else
3965 yb = &(y_regs[0]);
3966 }
3967 else
3968 yb = &(y_regs[i]);
3969 if (yb->y_array != NULL)
3970 {
3971 msg_putchar('\n');
3972 msg_putchar('"');
3973 msg_putchar(name);
3974 MSG_PUTS(" ");
3975
3976 n = (int)Columns - 6;
3977 for (j = 0; j < yb->y_size && n > 1; ++j)
3978 {
3979 if (j)
3980 {
3981 MSG_PUTS_ATTR("^J", attr);
3982 n -= 2;
3983 }
3984 for (p = yb->y_array[j]; *p && (n -= ptr2cells(p)) >= 0; ++p)
3985 {
3986 #ifdef FEAT_MBYTE
3987 clen = (*mb_ptr2len)(p);
3988 #endif
3989 msg_outtrans_len(p, clen);
3990 #ifdef FEAT_MBYTE
3991 p += clen - 1;
3992 #endif
3993 }
3994 }
3995 if (n > 1 && yb->y_type == MLINE)
3996 MSG_PUTS_ATTR("^J", attr);
3997 out_flush(); /* show one line at a time */
3998 }
3999 ui_breakcheck();
4000 }
4001
4002 /*
4003 * display last inserted text
4004 */
4005 if ((p = get_last_insert()) != NULL
4006 && (arg == NULL || vim_strchr(arg, '.') != NULL) && !got_int)
4007 {
4008 MSG_PUTS("\n\". ");
4009 dis_msg(p, TRUE);
4010 }
4011
4012 /*
4013 * display last command line
4014 */
4015 if (last_cmdline != NULL && (arg == NULL || vim_strchr(arg, ':') != NULL)
4016 && !got_int)
4017 {
4018 MSG_PUTS("\n\": ");
4019 dis_msg(last_cmdline, FALSE);
4020 }
4021
4022 /*
4023 * display current file name
4024 */
4025 if (curbuf->b_fname != NULL
4026 && (arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int)
4027 {
4028 MSG_PUTS("\n\"% ");
4029 dis_msg(curbuf->b_fname, FALSE);
4030 }
4031
4032 /*
4033 * display alternate file name
4034 */
4035 if ((arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int)
4036 {
4037 char_u *fname;
4038 linenr_T dummy;
4039
4040 if (buflist_name_nr(0, &fname, &dummy) != FAIL)
4041 {
4042 MSG_PUTS("\n\"# ");
4043 dis_msg(fname, FALSE);
4044 }
4045 }
4046
4047 /*
4048 * display last search pattern
4049 */
4050 if (last_search_pat() != NULL
4051 && (arg == NULL || vim_strchr(arg, '/') != NULL) && !got_int)
4052 {
4053 MSG_PUTS("\n\"/ ");
4054 dis_msg(last_search_pat(), FALSE);
4055 }
4056
4057 #ifdef FEAT_EVAL
4058 /*
4059 * display last used expression
4060 */
4061 if (expr_line != NULL && (arg == NULL || vim_strchr(arg, '=') != NULL)
4062 && !got_int)
4063 {
4064 MSG_PUTS("\n\"= ");
4065 dis_msg(expr_line, FALSE);
4066 }
4067 #endif
4068 }
4069
4070 /*
4071 * display a string for do_dis()
4072 * truncate at end of screen line
4073 */
4074 static void
4075 dis_msg(p, skip_esc)
4076 char_u *p;
4077 int skip_esc; /* if TRUE, ignore trailing ESC */
4078 {
4079 int n;
4080 #ifdef FEAT_MBYTE
4081 int l;
4082 #endif
4083
4084 n = (int)Columns - 6;
4085 while (*p != NUL
4086 && !(*p == ESC && skip_esc && *(p + 1) == NUL)
4087 && (n -= ptr2cells(p)) >= 0)
4088 {
4089 #ifdef FEAT_MBYTE
4090 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
4091 {
4092 msg_outtrans_len(p, l);
4093 p += l;
4094 }
4095 else
4096 #endif
4097 msg_outtrans_len(p++, 1);
4098 }
4099 ui_breakcheck();
4100 }
4101
4102 /*
4103 * join 'count' lines (minimal 2), including u_save()
4104 */
4105 void
4106 do_do_join(count, insert_space)
4107 long count;
4108 int insert_space;
4109 {
4110 colnr_T col = MAXCOL;
4111
4112 if (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
4113 (linenr_T)(curwin->w_cursor.lnum + count)) == FAIL)
4114 return;
4115
4116 while (--count > 0)
4117 {
4118 line_breakcheck();
4119 if (got_int || do_join(insert_space) == FAIL)
4120 {
4121 beep_flush();
4122 break;
4123 }
4124 if (col == MAXCOL && vim_strchr(p_cpo, CPO_JOINCOL) != NULL)
4125 col = curwin->w_cursor.col;
4126 }
4127
4128 /* Vi compatible: use the column of the first join */
4129 if (col != MAXCOL && vim_strchr(p_cpo, CPO_JOINCOL) != NULL)
4130 curwin->w_cursor.col = col;
4131
4132 #if 0
4133 /*
4134 * Need to update the screen if the line where the cursor is became too
4135 * long to fit on the screen.
4136 */
4137 update_topline_redraw();
4138 #endif
4139 }
4140
4141 /*
4142 * Join two lines at the cursor position.
4143 * "redraw" is TRUE when the screen should be updated.
4144 * Caller must have setup for undo.
4145 *
4146 * return FAIL for failure, OK otherwise
4147 */
4148 int
4149 do_join(insert_space)
4150 int insert_space;
4151 {
4152 char_u *curr;
4153 char_u *next, *next_start;
4154 char_u *newp;
4155 int endcurr1, endcurr2;
4156 int currsize; /* size of the current line */
4157 int nextsize; /* size of the next line */
4158 int spaces; /* number of spaces to insert */
4159 linenr_T t;
4160
4161 if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4162 return FAIL; /* can't join on last line */
4163
4164 curr = ml_get_curline();
4165 currsize = (int)STRLEN(curr);
4166 endcurr1 = endcurr2 = NUL;
4167 if (insert_space && currsize > 0)
4168 {
4169 #ifdef FEAT_MBYTE
4170 if (has_mbyte)
4171 {
4172 next = curr + currsize;
4173 mb_ptr_back(curr, next);
4174 endcurr1 = (*mb_ptr2char)(next);
4175 if (next > curr)
4176 {
4177 mb_ptr_back(curr, next);
4178 endcurr2 = (*mb_ptr2char)(next);
4179 }
4180 }
4181 else
4182 #endif
4183 {
4184 endcurr1 = *(curr + currsize - 1);
4185 if (currsize > 1)
4186 endcurr2 = *(curr + currsize - 2);
4187 }
4188 }
4189
4190 next = next_start = ml_get((linenr_T)(curwin->w_cursor.lnum + 1));
4191 spaces = 0;
4192 if (insert_space)
4193 {
4194 next = skipwhite(next);
4195 if (*next != ')' && currsize != 0 && endcurr1 != TAB
4196 #ifdef FEAT_MBYTE
4197 && (!has_format_option(FO_MBYTE_JOIN)
4198 || (mb_ptr2char(next) < 0x100 && endcurr1 < 0x100))
4199 && (!has_format_option(FO_MBYTE_JOIN2)
4200 || mb_ptr2char(next) < 0x100 || endcurr1 < 0x100)
4201 #endif
4202 )
4203 {
4204 /* don't add a space if the line is ending in a space */
4205 if (endcurr1 == ' ')
4206 endcurr1 = endcurr2;
4207 else
4208 ++spaces;
4209 /* extra space when 'joinspaces' set and line ends in '.' */
4210 if ( p_js
4211 && (endcurr1 == '.'
4212 || (vim_strchr(p_cpo, CPO_JOINSP) == NULL
4213 && (endcurr1 == '?' || endcurr1 == '!'))))
4214 ++spaces;
4215 }
4216 }
4217 nextsize = (int)STRLEN(next);
4218
4219 newp = alloc_check((unsigned)(currsize + nextsize + spaces + 1));
4220 if (newp == NULL)
4221 return FAIL;
4222
4223 /*
4224 * Insert the next line first, because we already have that pointer.
4225 * Curr has to be obtained again, because getting next will have
4226 * invalidated it.
4227 */
4228 mch_memmove(newp + currsize + spaces, next, (size_t)(nextsize + 1));
4229
4230 curr = ml_get_curline();
4231 mch_memmove(newp, curr, (size_t)currsize);
4232
4233 copy_spaces(newp + currsize, (size_t)spaces);
4234
4235 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
4236
4237 /* Only report the change in the first line here, del_lines() will report
4238 * the deleted line. */
4239 changed_lines(curwin->w_cursor.lnum, currsize,
4240 curwin->w_cursor.lnum + 1, 0L);
4241
4242 /*
4243 * Delete the following line. To do this we move the cursor there
4244 * briefly, and then move it back. After del_lines() the cursor may
4245 * have moved up (last line deleted), so the current lnum is kept in t.
4246 *
4247 * Move marks from the deleted line to the joined line, adjusting the
4248 * column. This is not Vi compatible, but Vi deletes the marks, thus that
4249 * should not really be a problem.
4250 */
4251 t = curwin->w_cursor.lnum;
4252 mark_col_adjust(t + 1, (colnr_T)0, (linenr_T)-1,
4253 (long)(currsize + spaces - (next - next_start)));
4254 ++curwin->w_cursor.lnum;
4255 del_lines(1L, FALSE);
4256 curwin->w_cursor.lnum = t;
4257
4258 /*
4259 * go to first character of the joined line
4260 */
4261 curwin->w_cursor.col = currsize;
4262 check_cursor_col();
4263 #ifdef FEAT_VIRTUALEDIT
4264 curwin->w_cursor.coladd = 0;
4265 #endif
4266 curwin->w_set_curswant = TRUE;
4267
4268 return OK;
4269 }
4270
4271 #ifdef FEAT_COMMENTS
4272 /*
4273 * Return TRUE if the two comment leaders given are the same. "lnum" is
4274 * the first line. White-space is ignored. Note that the whole of
4275 * 'leader1' must match 'leader2_len' characters from 'leader2' -- webb
4276 */
4277 static int
4278 same_leader(lnum, leader1_len, leader1_flags, leader2_len, leader2_flags)
4279 linenr_T lnum;
4280 int leader1_len;
4281 char_u *leader1_flags;
4282 int leader2_len;
4283 char_u *leader2_flags;
4284 {
4285 int idx1 = 0, idx2 = 0;
4286 char_u *p;
4287 char_u *line1;
4288 char_u *line2;
4289
4290 if (leader1_len == 0)
4291 return (leader2_len == 0);
4292
4293 /*
4294 * If first leader has 'f' flag, the lines can be joined only if the
4295 * second line does not have a leader.
4296 * If first leader has 'e' flag, the lines can never be joined.
4297 * If fist leader has 's' flag, the lines can only be joined if there is
4298 * some text after it and the second line has the 'm' flag.
4299 */
4300 if (leader1_flags != NULL)
4301 {
4302 for (p = leader1_flags; *p && *p != ':'; ++p)
4303 {
4304 if (*p == COM_FIRST)
4305 return (leader2_len == 0);
4306 if (*p == COM_END)
4307 return FALSE;
4308 if (*p == COM_START)
4309 {
4310 if (*(ml_get(lnum) + leader1_len) == NUL)
4311 return FALSE;
4312 if (leader2_flags == NULL || leader2_len == 0)
4313 return FALSE;
4314 for (p = leader2_flags; *p && *p != ':'; ++p)
4315 if (*p == COM_MIDDLE)
4316 return TRUE;
4317 return FALSE;
4318 }
4319 }
4320 }
4321
4322 /*
4323 * Get current line and next line, compare the leaders.
4324 * The first line has to be saved, only one line can be locked at a time.
4325 */
4326 line1 = vim_strsave(ml_get(lnum));
4327 if (line1 != NULL)
4328 {
4329 for (idx1 = 0; vim_iswhite(line1[idx1]); ++idx1)
4330 ;
4331 line2 = ml_get(lnum + 1);
4332 for (idx2 = 0; idx2 < leader2_len; ++idx2)
4333 {
4334 if (!vim_iswhite(line2[idx2]))
4335 {
4336 if (line1[idx1++] != line2[idx2])
4337 break;
4338 }
4339 else
4340 while (vim_iswhite(line1[idx1]))
4341 ++idx1;
4342 }
4343 vim_free(line1);
4344 }
4345 return (idx2 == leader2_len && idx1 == leader1_len);
4346 }
4347 #endif
4348
4349 /*
4350 * implementation of the format operator 'gq'
4351 */
4352 void
4353 op_format(oap, keep_cursor)
4354 oparg_T *oap;
4355 int keep_cursor; /* keep cursor on same text char */
4356 {
4357 long old_line_count = curbuf->b_ml.ml_line_count;
4358
4359 /* Place the cursor where the "gq" or "gw" command was given, so that "u"
4360 * can put it back there. */
4361 curwin->w_cursor = oap->cursor_start;
4362
4363 if (u_save((linenr_T)(oap->start.lnum - 1),
4364 (linenr_T)(oap->end.lnum + 1)) == FAIL)
4365 return;
4366 curwin->w_cursor = oap->start;
4367
4368 #ifdef FEAT_VISUAL
4369 if (oap->is_VIsual)
4370 /* When there is no change: need to remove the Visual selection */
4371 redraw_curbuf_later(INVERTED);
4372 #endif
4373
4374 /* Set '[ mark at the start of the formatted area */
4375 curbuf->b_op_start = oap->start;
4376
4377 /* For "gw" remember the cursor position and put it back below (adjusted
4378 * for joined and split lines). */
4379 if (keep_cursor)
4380 saved_cursor = oap->cursor_start;
4381
4382 format_lines(oap->line_count, keep_cursor);
4383
4384 /*
4385 * Leave the cursor at the first non-blank of the last formatted line.
4386 * If the cursor was moved one line back (e.g. with "Q}") go to the next
4387 * line, so "." will do the next lines.
4388 */
4389 if (oap->end_adjusted && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
4390 ++curwin->w_cursor.lnum;
4391 beginline(BL_WHITE | BL_FIX);
4392 old_line_count = curbuf->b_ml.ml_line_count - old_line_count;
4393 msgmore(old_line_count);
4394
4395 /* put '] mark on the end of the formatted area */
4396 curbuf->b_op_end = curwin->w_cursor;
4397
4398 if (keep_cursor)
4399 {
4400 curwin->w_cursor = saved_cursor;
4401 saved_cursor.lnum = 0;
4402 }
4403
4404 #ifdef FEAT_VISUAL
4405 if (oap->is_VIsual)
4406 {
4407 win_T *wp;
4408
4409 FOR_ALL_WINDOWS(wp)
4410 {
4411 if (wp->w_old_cursor_lnum != 0)
4412 {
4413 /* When lines have been inserted or deleted, adjust the end of
4414 * the Visual area to be redrawn. */
4415 if (wp->w_old_cursor_lnum > wp->w_old_visual_lnum)
4416 wp->w_old_cursor_lnum += old_line_count;
4417 else
4418 wp->w_old_visual_lnum += old_line_count;
4419 }
4420 }
4421 }
4422 #endif
4423 }
4424
4425 #if defined(FEAT_EVAL) || defined(PROTO)
4426 /*
4427 * Implementation of the format operator 'gq' for when using 'formatexpr'.
4428 */
4429 void
4430 op_formatexpr(oap)
4431 oparg_T *oap;
4432 {
4433 # ifdef FEAT_VISUAL
4434 if (oap->is_VIsual)
4435 /* When there is no change: need to remove the Visual selection */
4436 redraw_curbuf_later(INVERTED);
4437 # endif
4438
4439 (void)fex_format(oap->start.lnum, oap->line_count, NUL);
4440 }
4441
4442 int
4443 fex_format(lnum, count, c)
4444 linenr_T lnum;
4445 long count;
4446 int c; /* character to be inserted */
4447 {
4448 int use_sandbox = was_set_insecurely((char_u *)"formatexpr",
4449 OPT_LOCAL);
4450 int r;
4451 #ifdef FEAT_MBYTE
4452 char_u buf[MB_MAXBYTES];
4453 #else
4454 char_u buf[2];
4455 #endif
4456
4457 /*
4458 * Set v:lnum to the first line number and v:count to the number of lines.
4459 * Set v:char to the character to be inserted (can be NUL).
4460 */
4461 set_vim_var_nr(VV_LNUM, lnum);
4462 set_vim_var_nr(VV_COUNT, count);
4463
4464 #ifdef FEAT_MBYTE
4465 if (has_mbyte)
4466 buf[(*mb_char2bytes)(c, buf)] = NUL;
4467 else
4468 #endif
4469 {
4470 buf[0] = c;
4471 buf[1] = NUL;
4472 }
4473 set_vim_var_string(VV_CHAR, buf, -1);
4474
4475 /*
4476 * Evaluate the function.
4477 */
4478 if (use_sandbox)
4479 ++sandbox;
4480 r = eval_to_number(curbuf->b_p_fex);
4481 if (use_sandbox)
4482 --sandbox;
4483
4484 set_vim_var_string(VV_CHAR, NULL, -1);
4485
4486 return r;
4487 }
4488 #endif
4489
4490 /*
4491 * Format "line_count" lines, starting at the cursor position.
4492 * When "line_count" is negative, format until the end of the paragraph.
4493 * Lines after the cursor line are saved for undo, caller must have saved the
4494 * first line.
4495 */
4496 void
4497 format_lines(line_count, avoid_fex)
4498 linenr_T line_count;
4499 int avoid_fex; /* don't use 'formatexpr' */
4500 {
4501 int max_len;
4502 int is_not_par; /* current line not part of parag. */
4503 int next_is_not_par; /* next line not part of paragraph */
4504 int is_end_par; /* at end of paragraph */
4505 int prev_is_end_par = FALSE;/* prev. line not part of parag. */
4506 int next_is_start_par = FALSE;
4507 #ifdef FEAT_COMMENTS
4508 int leader_len = 0; /* leader len of current line */
4509 int next_leader_len; /* leader len of next line */
4510 char_u *leader_flags = NULL; /* flags for leader of current line */
4511 char_u *next_leader_flags; /* flags for leader of next line */
4512 int do_comments; /* format comments */
4513 #endif
4514 int advance = TRUE;
4515 int second_indent = -1;
4516 int do_second_indent;
4517 int do_number_indent;
4518 int do_trail_white;
4519 int first_par_line = TRUE;
4520 int smd_save;
4521 long count;
4522 int need_set_indent = TRUE; /* set indent of next paragraph */
4523 int force_format = FALSE;
4524 int old_State = State;
4525
4526 /* length of a line to force formatting: 3 * 'tw' */
4527 max_len = comp_textwidth(TRUE) * 3;
4528
4529 /* check for 'q', '2' and '1' in 'formatoptions' */
4530 #ifdef FEAT_COMMENTS
4531 do_comments = has_format_option(FO_Q_COMS);
4532 #endif
4533 do_second_indent = has_format_option(FO_Q_SECOND);
4534 do_number_indent = has_format_option(FO_Q_NUMBER);
4535 do_trail_white = has_format_option(FO_WHITE_PAR);
4536
4537 /*
4538 * Get info about the previous and current line.
4539 */
4540 if (curwin->w_cursor.lnum > 1)
4541 is_not_par = fmt_check_par(curwin->w_cursor.lnum - 1
4542 #ifdef FEAT_COMMENTS
4543 , &leader_len, &leader_flags, do_comments
4544 #endif
4545 );
4546 else
4547 is_not_par = TRUE;
4548 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum
4549 #ifdef FEAT_COMMENTS
4550 , &next_leader_len, &next_leader_flags, do_comments
4551 #endif
4552 );
4553 is_end_par = (is_not_par || next_is_not_par);
4554 if (!is_end_par && do_trail_white)
4555 is_end_par = !ends_in_white(curwin->w_cursor.lnum - 1);
4556
4557 curwin->w_cursor.lnum--;
4558 for (count = line_count; count != 0 && !got_int; --count)
4559 {
4560 /*
4561 * Advance to next paragraph.
4562 */
4563 if (advance)
4564 {
4565 curwin->w_cursor.lnum++;
4566 prev_is_end_par = is_end_par;
4567 is_not_par = next_is_not_par;
4568 #ifdef FEAT_COMMENTS
4569 leader_len = next_leader_len;
4570 leader_flags = next_leader_flags;
4571 #endif
4572 }
4573
4574 /*
4575 * The last line to be formatted.
4576 */
4577 if (count == 1 || curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4578 {
4579 next_is_not_par = TRUE;
4580 #ifdef FEAT_COMMENTS
4581 next_leader_len = 0;
4582 next_leader_flags = NULL;
4583 #endif
4584 }
4585 else
4586 {
4587 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum + 1
4588 #ifdef FEAT_COMMENTS
4589 , &next_leader_len, &next_leader_flags, do_comments
4590 #endif
4591 );
4592 if (do_number_indent)
4593 next_is_start_par =
4594 (get_number_indent(curwin->w_cursor.lnum + 1) > 0);
4595 }
4596 advance = TRUE;
4597 is_end_par = (is_not_par || next_is_not_par || next_is_start_par);
4598 if (!is_end_par && do_trail_white)
4599 is_end_par = !ends_in_white(curwin->w_cursor.lnum);
4600
4601 /*
4602 * Skip lines that are not in a paragraph.
4603 */
4604 if (is_not_par)
4605 {
4606 if (line_count < 0)
4607 break;
4608 }
4609 else
4610 {
4611 /*
4612 * For the first line of a paragraph, check indent of second line.
4613 * Don't do this for comments and empty lines.
4614 */
4615 if (first_par_line
4616 && (do_second_indent || do_number_indent)
4617 && prev_is_end_par
4618 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count
4619 #ifdef FEAT_COMMENTS
4620 && leader_len == 0
4621 && next_leader_len == 0
4622 #endif
4623 )
4624 {
4625 if (do_second_indent
4626 && !lineempty(curwin->w_cursor.lnum + 1))
4627 second_indent = get_indent_lnum(curwin->w_cursor.lnum + 1);
4628 else if (do_number_indent)
4629 second_indent = get_number_indent(curwin->w_cursor.lnum);
4630 }
4631
4632 /*
4633 * When the comment leader changes, it's the end of the paragraph.
4634 */
4635 if (curwin->w_cursor.lnum >= curbuf->b_ml.ml_line_count
4636 #ifdef FEAT_COMMENTS
4637 || !same_leader(curwin->w_cursor.lnum,
4638 leader_len, leader_flags,
4639 next_leader_len, next_leader_flags)
4640 #endif
4641 )
4642 is_end_par = TRUE;
4643
4644 /*
4645 * If we have got to the end of a paragraph, or the line is
4646 * getting long, format it.
4647 */
4648 if (is_end_par || force_format)
4649 {
4650 if (need_set_indent)
4651 /* replace indent in first line with minimal number of
4652 * tabs and spaces, according to current options */
4653 (void)set_indent(get_indent(), SIN_CHANGED);
4654
4655 /* put cursor on last non-space */
4656 State = NORMAL; /* don't go past end-of-line */
4657 coladvance((colnr_T)MAXCOL);
4658 while (curwin->w_cursor.col && vim_isspace(gchar_cursor()))
4659 dec_cursor();
4660
4661 /* do the formatting, without 'showmode' */
4662 State = INSERT; /* for open_line() */
4663 smd_save = p_smd;
4664 p_smd = FALSE;
4665 insertchar(NUL, INSCHAR_FORMAT
4666 #ifdef FEAT_COMMENTS
4667 + (do_comments ? INSCHAR_DO_COM : 0)
4668 #endif
4669 + (avoid_fex ? INSCHAR_NO_FEX : 0), second_indent);
4670 State = old_State;
4671 p_smd = smd_save;
4672 second_indent = -1;
4673 /* at end of par.: need to set indent of next par. */
4674 need_set_indent = is_end_par;
4675 if (is_end_par)
4676 {
4677 /* When called with a negative line count, break at the
4678 * end of the paragraph. */
4679 if (line_count < 0)
4680 break;
4681 first_par_line = TRUE;
4682 }
4683 force_format = FALSE;
4684 }
4685
4686 /*
4687 * When still in same paragraph, join the lines together. But
4688 * first delete the comment leader from the second line.
4689 */
4690 if (!is_end_par)
4691 {
4692 advance = FALSE;
4693 curwin->w_cursor.lnum++;
4694 curwin->w_cursor.col = 0;
4695 if (line_count < 0 && u_save_cursor() == FAIL)
4696 break;
4697 #ifdef FEAT_COMMENTS
4698 (void)del_bytes((long)next_leader_len, FALSE, FALSE);
4699 if (next_leader_len > 0)
4700 mark_col_adjust(curwin->w_cursor.lnum, (colnr_T)0, 0L,
4701 (long)-next_leader_len);
4702 #endif
4703 curwin->w_cursor.lnum--;
4704 if (do_join(TRUE) == FAIL)
4705 {
4706 beep_flush();
4707 break;
4708 }
4709 first_par_line = FALSE;
4710 /* If the line is getting long, format it next time */
4711 if (STRLEN(ml_get_curline()) > (size_t)max_len)
4712 force_format = TRUE;
4713 else
4714 force_format = FALSE;
4715 }
4716 }
4717 line_breakcheck();
4718 }
4719 }
4720
4721 /*
4722 * Return TRUE if line "lnum" ends in a white character.
4723 */
4724 static int
4725 ends_in_white(lnum)
4726 linenr_T lnum;
4727 {
4728 char_u *s = ml_get(lnum);
4729 size_t l;
4730
4731 if (*s == NUL)
4732 return FALSE;
4733 /* Don't use STRLEN() inside vim_iswhite(), SAS/C complains: "macro
4734 * invocation may call function multiple times". */
4735 l = STRLEN(s) - 1;
4736 return vim_iswhite(s[l]);
4737 }
4738
4739 /*
4740 * Blank lines, and lines containing only the comment leader, are left
4741 * untouched by the formatting. The function returns TRUE in this
4742 * case. It also returns TRUE when a line starts with the end of a comment
4743 * ('e' in comment flags), so that this line is skipped, and not joined to the
4744 * previous line. A new paragraph starts after a blank line, or when the
4745 * comment leader changes -- webb.
4746 */
4747 #ifdef FEAT_COMMENTS
4748 static int
4749 fmt_check_par(lnum, leader_len, leader_flags, do_comments)
4750 linenr_T lnum;
4751 int *leader_len;
4752 char_u **leader_flags;
4753 int do_comments;
4754 {
4755 char_u *flags = NULL; /* init for GCC */
4756 char_u *ptr;
4757
4758 ptr = ml_get(lnum);
4759 if (do_comments)
4760 *leader_len = get_leader_len(ptr, leader_flags, FALSE);
4761 else
4762 *leader_len = 0;
4763
4764 if (*leader_len > 0)
4765 {
4766 /*
4767 * Search for 'e' flag in comment leader flags.
4768 */
4769 flags = *leader_flags;
4770 while (*flags && *flags != ':' && *flags != COM_END)
4771 ++flags;
4772 }
4773
4774 return (*skipwhite(ptr + *leader_len) == NUL
4775 || (*leader_len > 0 && *flags == COM_END)
4776 || startPS(lnum, NUL, FALSE));
4777 }
4778 #else
4779 static int
4780 fmt_check_par(lnum)
4781 linenr_T lnum;
4782 {
4783 return (*skipwhite(ml_get(lnum)) == NUL || startPS(lnum, NUL, FALSE));
4784 }
4785 #endif
4786
4787 /*
4788 * Return TRUE when a paragraph starts in line "lnum". Return FALSE when the
4789 * previous line is in the same paragraph. Used for auto-formatting.
4790 */
4791 int
4792 paragraph_start(lnum)
4793 linenr_T lnum;
4794 {
4795 char_u *p;
4796 #ifdef FEAT_COMMENTS
4797 int leader_len = 0; /* leader len of current line */
4798 char_u *leader_flags = NULL; /* flags for leader of current line */
4799 int next_leader_len; /* leader len of next line */
4800 char_u *next_leader_flags; /* flags for leader of next line */
4801 int do_comments; /* format comments */
4802 #endif
4803
4804 if (lnum <= 1)
4805 return TRUE; /* start of the file */
4806
4807 p = ml_get(lnum - 1);
4808 if (*p == NUL)
4809 return TRUE; /* after empty line */
4810
4811 #ifdef FEAT_COMMENTS
4812 do_comments = has_format_option(FO_Q_COMS);
4813 #endif
4814 if (fmt_check_par(lnum - 1
4815 #ifdef FEAT_COMMENTS
4816 , &leader_len, &leader_flags, do_comments
4817 #endif
4818 ))
4819 return TRUE; /* after non-paragraph line */
4820
4821 if (fmt_check_par(lnum
4822 #ifdef FEAT_COMMENTS
4823 , &next_leader_len, &next_leader_flags, do_comments
4824 #endif
4825 ))
4826 return TRUE; /* "lnum" is not a paragraph line */
4827
4828 if (has_format_option(FO_WHITE_PAR) && !ends_in_white(lnum - 1))
4829 return TRUE; /* missing trailing space in previous line. */
4830
4831 if (has_format_option(FO_Q_NUMBER) && (get_number_indent(lnum) > 0))
4832 return TRUE; /* numbered item starts in "lnum". */
4833
4834 #ifdef FEAT_COMMENTS
4835 if (!same_leader(lnum - 1, leader_len, leader_flags,
4836 next_leader_len, next_leader_flags))
4837 return TRUE; /* change of comment leader. */
4838 #endif
4839
4840 return FALSE;
4841 }
4842
4843 #ifdef FEAT_VISUAL
4844 /*
4845 * prepare a few things for block mode yank/delete/tilde
4846 *
4847 * for delete:
4848 * - textlen includes the first/last char to be (partly) deleted
4849 * - start/endspaces is the number of columns that are taken by the
4850 * first/last deleted char minus the number of columns that have to be
4851 * deleted. for yank and tilde:
4852 * - textlen includes the first/last char to be wholly yanked
4853 * - start/endspaces is the number of columns of the first/last yanked char
4854 * that are to be yanked.
4855 */
4856 static void
4857 block_prep(oap, bdp, lnum, is_del)
4858 oparg_T *oap;
4859 struct block_def *bdp;
4860 linenr_T lnum;
4861 int is_del;
4862 {
4863 int incr = 0;
4864 char_u *pend;
4865 char_u *pstart;
4866 char_u *line;
4867 char_u *prev_pstart;
4868 char_u *prev_pend;
4869
4870 bdp->startspaces = 0;
4871 bdp->endspaces = 0;
4872 bdp->textlen = 0;
4873 bdp->start_vcol = 0;
4874 bdp->end_vcol = 0;
4875 #ifdef FEAT_VISUALEXTRA
4876 bdp->is_short = FALSE;
4877 bdp->is_oneChar = FALSE;
4878 bdp->pre_whitesp = 0;
4879 bdp->pre_whitesp_c = 0;
4880 bdp->end_char_vcols = 0;
4881 #endif
4882 bdp->start_char_vcols = 0;
4883
4884 line = ml_get(lnum);
4885 pstart = line;
4886 prev_pstart = line;
4887 while (bdp->start_vcol < oap->start_vcol && *pstart)
4888 {
4889 /* Count a tab for what it's worth (if list mode not on) */
4890 incr = lbr_chartabsize(pstart, (colnr_T)bdp->start_vcol);
4891 bdp->start_vcol += incr;
4892 #ifdef FEAT_VISUALEXTRA
4893 if (vim_iswhite(*pstart))
4894 {
4895 bdp->pre_whitesp += incr;
4896 bdp->pre_whitesp_c++;
4897 }
4898 else
4899 {
4900 bdp->pre_whitesp = 0;
4901 bdp->pre_whitesp_c = 0;
4902 }
4903 #endif
4904 prev_pstart = pstart;
4905 mb_ptr_adv(pstart);
4906 }
4907 bdp->start_char_vcols = incr;
4908 if (bdp->start_vcol < oap->start_vcol) /* line too short */
4909 {
4910 bdp->end_vcol = bdp->start_vcol;
4911 #ifdef FEAT_VISUALEXTRA
4912 bdp->is_short = TRUE;
4913 #endif
4914 if (!is_del || oap->op_type == OP_APPEND)
4915 bdp->endspaces = oap->end_vcol - oap->start_vcol + 1;
4916 }
4917 else
4918 {
4919 /* notice: this converts partly selected Multibyte characters to
4920 * spaces, too. */
4921 bdp->startspaces = bdp->start_vcol - oap->start_vcol;
4922 if (is_del && bdp->startspaces)
4923 bdp->startspaces = bdp->start_char_vcols - bdp->startspaces;
4924 pend = pstart;
4925 bdp->end_vcol = bdp->start_vcol;
4926 if (bdp->end_vcol > oap->end_vcol) /* it's all in one character */
4927 {
4928 #ifdef FEAT_VISUALEXTRA
4929 bdp->is_oneChar = TRUE;
4930 #endif
4931 if (oap->op_type == OP_INSERT)
4932 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces;
4933 else if (oap->op_type == OP_APPEND)
4934 {
4935 bdp->startspaces += oap->end_vcol - oap->start_vcol + 1;
4936 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces;
4937 }
4938 else
4939 {
4940 bdp->startspaces = oap->end_vcol - oap->start_vcol + 1;
4941 if (is_del && oap->op_type != OP_LSHIFT)
4942 {
4943 /* just putting the sum of those two into
4944 * bdp->startspaces doesn't work for Visual replace,
4945 * so we have to split the tab in two */
4946 bdp->startspaces = bdp->start_char_vcols
4947 - (bdp->start_vcol - oap->start_vcol);
4948 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1;
4949 }
4950 }
4951 }
4952 else
4953 {
4954 prev_pend = pend;
4955 while (bdp->end_vcol <= oap->end_vcol && *pend != NUL)
4956 {
4957 /* Count a tab for what it's worth (if list mode not on) */
4958 prev_pend = pend;
4959 incr = lbr_chartabsize_adv(&pend, (colnr_T)bdp->end_vcol);
4960 bdp->end_vcol += incr;
4961 }
4962 if (bdp->end_vcol <= oap->end_vcol
4963 && (!is_del
4964 || oap->op_type == OP_APPEND
4965 || oap->op_type == OP_REPLACE)) /* line too short */
4966 {
4967 #ifdef FEAT_VISUALEXTRA
4968 bdp->is_short = TRUE;
4969 #endif
4970 /* Alternative: include spaces to fill up the block.
4971 * Disadvantage: can lead to trailing spaces when the line is
4972 * short where the text is put */
4973 /* if (!is_del || oap->op_type == OP_APPEND) */
4974 if (oap->op_type == OP_APPEND || virtual_op)
4975 bdp->endspaces = oap->end_vcol - bdp->end_vcol
4976 + oap->inclusive;
4977 else
4978 bdp->endspaces = 0; /* replace doesn't add characters */
4979 }
4980 else if (bdp->end_vcol > oap->end_vcol)
4981 {
4982 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1;
4983 if (!is_del && bdp->endspaces)
4984 {
4985 bdp->endspaces = incr - bdp->endspaces;
4986 if (pend != pstart)
4987 pend = prev_pend;
4988 }
4989 }
4990 }
4991 #ifdef FEAT_VISUALEXTRA
4992 bdp->end_char_vcols = incr;
4993 #endif
4994 if (is_del && bdp->startspaces)
4995 pstart = prev_pstart;
4996 bdp->textlen = (int)(pend - pstart);
4997 }
4998 bdp->textcol = (colnr_T) (pstart - line);
4999 bdp->textstart = pstart;
5000 }
5001 #endif /* FEAT_VISUAL */
5002
5003 #ifdef FEAT_RIGHTLEFT
5004 static void reverse_line __ARGS((char_u *s));
5005
5006 static void
5007 reverse_line(s)
5008 char_u *s;
5009 {
5010 int i, j;
5011 char_u c;
5012
5013 if ((i = (int)STRLEN(s) - 1) <= 0)
5014 return;
5015
5016 curwin->w_cursor.col = i - curwin->w_cursor.col;
5017 for (j = 0; j < i; j++, i--)
5018 {
5019 c = s[i]; s[i] = s[j]; s[j] = c;
5020 }
5021 }
5022
5023 # define RLADDSUBFIX(ptr) if (curwin->w_p_rl) reverse_line(ptr);
5024 #else
5025 # define RLADDSUBFIX(ptr)
5026 #endif
5027
5028 /*
5029 * add or subtract 'Prenum1' from a number in a line
5030 * 'command' is CTRL-A for add, CTRL-X for subtract
5031 *
5032 * return FAIL for failure, OK otherwise
5033 */
5034 int
5035 do_addsub(command, Prenum1)
5036 int command;
5037 linenr_T Prenum1;
5038 {
5039 int col;
5040 char_u *buf1;
5041 char_u buf2[NUMBUFLEN];
5042 int hex; /* 'X' or 'x': hex; '0': octal */
5043 static int hexupper = FALSE; /* 0xABC */
5044 unsigned long n;
5045 long_u oldn;
5046 char_u *ptr;
5047 int c;
5048 int length = 0; /* character length of the number */
5049 int todel;
5050 int dohex;
5051 int dooct;
5052 int doalp;
5053 int firstdigit;
5054 int negative;
5055 int subtract;
5056
5057 dohex = (vim_strchr(curbuf->b_p_nf, 'x') != NULL); /* "heX" */
5058 dooct = (vim_strchr(curbuf->b_p_nf, 'o') != NULL); /* "Octal" */
5059 doalp = (vim_strchr(curbuf->b_p_nf, 'p') != NULL); /* "alPha" */
5060
5061 ptr = ml_get_curline();
5062 RLADDSUBFIX(ptr);
5063
5064 /*
5065 * First check if we are on a hexadecimal number, after the "0x".
5066 */
5067 col = curwin->w_cursor.col;
5068 if (dohex)
5069 while (col > 0 && vim_isxdigit(ptr[col]))
5070 --col;
5071 if ( dohex
5072 && col > 0
5073 && (ptr[col] == 'X'
5074 || ptr[col] == 'x')
5075 && ptr[col - 1] == '0'
5076 && vim_isxdigit(ptr[col + 1]))
5077 {
5078 /*
5079 * Found hexadecimal number, move to its start.
5080 */
5081 --col;
5082 }
5083 else
5084 {
5085 /*
5086 * Search forward and then backward to find the start of number.
5087 */
5088 col = curwin->w_cursor.col;
5089
5090 while (ptr[col] != NUL
5091 && !vim_isdigit(ptr[col])
5092 && !(doalp && ASCII_ISALPHA(ptr[col])))
5093 ++col;
5094
5095 while (col > 0
5096 && vim_isdigit(ptr[col - 1])
5097 && !(doalp && ASCII_ISALPHA(ptr[col])))
5098 --col;
5099 }
5100
5101 /*
5102 * If a number was found, and saving for undo works, replace the number.
5103 */
5104 firstdigit = ptr[col];
5105 RLADDSUBFIX(ptr);
5106 if ((!VIM_ISDIGIT(firstdigit) && !(doalp && ASCII_ISALPHA(firstdigit)))
5107 || u_save_cursor() != OK)
5108 {
5109 beep_flush();
5110 return FAIL;
5111 }
5112
5113 /* get ptr again, because u_save() may have changed it */
5114 ptr = ml_get_curline();
5115 RLADDSUBFIX(ptr);
5116
5117 if (doalp && ASCII_ISALPHA(firstdigit))
5118 {
5119 /* decrement or increment alphabetic character */
5120 if (command == Ctrl_X)
5121 {
5122 if (CharOrd(firstdigit) < Prenum1)
5123 {
5124 if (isupper(firstdigit))
5125 firstdigit = 'A';
5126 else
5127 firstdigit = 'a';
5128 }
5129 else
5130 #ifdef EBCDIC
5131 firstdigit = EBCDIC_CHAR_ADD(firstdigit, -Prenum1);
5132 #else
5133 firstdigit -= Prenum1;
5134 #endif
5135 }
5136 else
5137 {
5138 if (26 - CharOrd(firstdigit) - 1 < Prenum1)
5139 {
5140 if (isupper(firstdigit))
5141 firstdigit = 'Z';
5142 else
5143 firstdigit = 'z';
5144 }
5145 else
5146 #ifdef EBCDIC
5147 firstdigit = EBCDIC_CHAR_ADD(firstdigit, Prenum1);
5148 #else
5149 firstdigit += Prenum1;
5150 #endif
5151 }
5152 curwin->w_cursor.col = col;
5153 (void)del_char(FALSE);
5154 ins_char(firstdigit);
5155 }
5156 else
5157 {
5158 negative = FALSE;
5159 if (col > 0 && ptr[col - 1] == '-') /* negative number */
5160 {
5161 --col;
5162 negative = TRUE;
5163 }
5164
5165 /* get the number value (unsigned) */
5166 vim_str2nr(ptr + col, &hex, &length, dooct, dohex, NULL, &n);
5167
5168 /* ignore leading '-' for hex and octal numbers */
5169 if (hex && negative)
5170 {
5171 ++col;
5172 --length;
5173 negative = FALSE;
5174 }
5175
5176 /* add or subtract */
5177 subtract = FALSE;
5178 if (command == Ctrl_X)
5179 subtract ^= TRUE;
5180 if (negative)
5181 subtract ^= TRUE;
5182
5183 oldn = n;
5184 if (subtract)
5185 n -= (unsigned long)Prenum1;
5186 else
5187 n += (unsigned long)Prenum1;
5188
5189 /* handle wraparound for decimal numbers */
5190 if (!hex)
5191 {
5192 if (subtract)
5193 {
5194 if (n > oldn)
5195 {
5196 n = 1 + (n ^ (unsigned long)-1);
5197 negative ^= TRUE;
5198 }
5199 }
5200 else /* add */
5201 {
5202 if (n < oldn)
5203 {
5204 n = (n ^ (unsigned long)-1);
5205 negative ^= TRUE;
5206 }
5207 }
5208 if (n == 0)
5209 negative = FALSE;
5210 }
5211
5212 /*
5213 * Delete the old number.
5214 */
5215 curwin->w_cursor.col = col;
5216 todel = length;
5217 c = gchar_cursor();
5218 /*
5219 * Don't include the '-' in the length, only the length of the part
5220 * after it is kept the same.
5221 */
5222 if (c == '-')
5223 --length;
5224 while (todel-- > 0)
5225 {
5226 if (c < 0x100 && isalpha(c))
5227 {
5228 if (isupper(c))
5229 hexupper = TRUE;
5230 else
5231 hexupper = FALSE;
5232 }
5233 /* del_char() will mark line needing displaying */
5234 (void)del_char(FALSE);
5235 c = gchar_cursor();
5236 }
5237
5238 /*
5239 * Prepare the leading characters in buf1[].
5240 * When there are many leading zeros it could be very long. Allocate
5241 * a bit too much.
5242 */
5243 buf1 = alloc((unsigned)length + NUMBUFLEN);
5244 if (buf1 == NULL)
5245 return FAIL;
5246 ptr = buf1;
5247 if (negative)
5248 {
5249 *ptr++ = '-';
5250 }
5251 if (hex)
5252 {
5253 *ptr++ = '0';
5254 --length;
5255 }
5256 if (hex == 'x' || hex == 'X')
5257 {
5258 *ptr++ = hex;
5259 --length;
5260 }
5261
5262 /*
5263 * Put the number characters in buf2[].
5264 */
5265 if (hex == 0)
5266 sprintf((char *)buf2, "%lu", n);
5267 else if (hex == '0')
5268 sprintf((char *)buf2, "%lo", n);
5269 else if (hex && hexupper)
5270 sprintf((char *)buf2, "%lX", n);
5271 else
5272 sprintf((char *)buf2, "%lx", n);
5273 length -= (int)STRLEN(buf2);
5274
5275 /*
5276 * Adjust number of zeros to the new number of digits, so the
5277 * total length of the number remains the same.
5278 * Don't do this when
5279 * the result may look like an octal number.
5280 */
5281 if (firstdigit == '0' && !(dooct && hex == 0))
5282 while (length-- > 0)
5283 *ptr++ = '0';
5284 *ptr = NUL;
5285 STRCAT(buf1, buf2);
5286 ins_str(buf1); /* insert the new number */
5287 vim_free(buf1);
5288 }
5289 --curwin->w_cursor.col;
5290 curwin->w_set_curswant = TRUE;
5291 #ifdef FEAT_RIGHTLEFT
5292 ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
5293 RLADDSUBFIX(ptr);
5294 #endif
5295 return OK;
5296 }
5297
5298 #ifdef FEAT_VIMINFO
5299 int
5300 read_viminfo_register(virp, force)
5301 vir_T *virp;
5302 int force;
5303 {
5304 int eof;
5305 int do_it = TRUE;
5306 int size;
5307 int limit;
5308 int i;
5309 int set_prev = FALSE;
5310 char_u *str;
5311 char_u **array = NULL;
5312
5313 /* We only get here (hopefully) if line[0] == '"' */
5314 str = virp->vir_line + 1;
5315 if (*str == '"')
5316 {
5317 set_prev = TRUE;
5318 str++;
5319 }
5320 if (!ASCII_ISALNUM(*str) && *str != '-')
5321 {
5322 if (viminfo_error("E577: ", _("Illegal register name"), virp->vir_line))
5323 return TRUE; /* too many errors, pretend end-of-file */
5324 do_it = FALSE;
5325 }
5326 get_yank_register(*str++, FALSE);
5327 if (!force && y_current->y_array != NULL)
5328 do_it = FALSE;
5329 size = 0;
5330 limit = 100; /* Optimized for registers containing <= 100 lines */
5331 if (do_it)
5332 {
5333 if (set_prev)
5334 y_previous = y_current;
5335 vim_free(y_current->y_array);
5336 array = y_current->y_array =
5337 (char_u **)alloc((unsigned)(limit * sizeof(char_u *)));
5338 str = skipwhite(str);
5339 if (STRNCMP(str, "CHAR", 4) == 0)
5340 y_current->y_type = MCHAR;
5341 #ifdef FEAT_VISUAL
5342 else if (STRNCMP(str, "BLOCK", 5) == 0)
5343 y_current->y_type = MBLOCK;
5344 #endif
5345 else
5346 y_current->y_type = MLINE;
5347 /* get the block width; if it's missing we get a zero, which is OK */
5348 str = skipwhite(skiptowhite(str));
5349 #ifdef FEAT_VISUAL
5350 y_current->y_width = getdigits(&str);
5351 #else
5352 (void)getdigits(&str);
5353 #endif
5354 }
5355
5356 while (!(eof = viminfo_readline(virp))
5357 && (virp->vir_line[0] == TAB || virp->vir_line[0] == '<'))
5358 {
5359 if (do_it)
5360 {
5361 if (size >= limit)
5362 {
5363 y_current->y_array = (char_u **)
5364 alloc((unsigned)(limit * 2 * sizeof(char_u *)));
5365 for (i = 0; i < limit; i++)
5366 y_current->y_array[i] = array[i];
5367 vim_free(array);
5368 limit *= 2;
5369 array = y_current->y_array;
5370 }
5371 str = viminfo_readstring(virp, 1, TRUE);
5372 if (str != NULL)
5373 array[size++] = str;
5374 else
5375 do_it = FALSE;
5376 }
5377 }
5378 if (do_it)
5379 {
5380 if (size == 0)
5381 {
5382 vim_free(array);
5383 y_current->y_array = NULL;
5384 }
5385 else if (size < limit)
5386 {
5387 y_current->y_array =
5388 (char_u **)alloc((unsigned)(size * sizeof(char_u *)));
5389 for (i = 0; i < size; i++)
5390 y_current->y_array[i] = array[i];
5391 vim_free(array);
5392 }
5393 y_current->y_size = size;
5394 }
5395 return eof;
5396 }
5397
5398 void
5399 write_viminfo_registers(fp)
5400 FILE *fp;
5401 {
5402 int i, j;
5403 char_u *type;
5404 char_u c;
5405 int num_lines;
5406 int max_num_lines;
5407 int max_kbyte;
5408 long len;
5409
5410 fprintf(fp, _("\n# Registers:\n"));
5411
5412 /* Get '<' value, use old '"' value if '<' is not found. */
5413 max_num_lines = get_viminfo_parameter('<');
5414 if (max_num_lines < 0)
5415 max_num_lines = get_viminfo_parameter('"');
5416 if (max_num_lines == 0)
5417 return;
5418 max_kbyte = get_viminfo_parameter('s');
5419 if (max_kbyte == 0)
5420 return;
5421 for (i = 0; i < NUM_REGISTERS; i++)
5422 {
5423 if (y_regs[i].y_array == NULL)
5424 continue;
5425 #ifdef FEAT_CLIPBOARD
5426 /* Skip '*'/'+' register, we don't want them back next time */
5427 if (i == STAR_REGISTER || i == PLUS_REGISTER)
5428 continue;
5429 #endif
5430 #ifdef FEAT_DND
5431 /* Neither do we want the '~' register */
5432 if (i == TILDE_REGISTER)
5433 continue;
5434 #endif
5435 /* Skip empty registers. */
5436 num_lines = y_regs[i].y_size;
5437 if (num_lines == 0
5438 || (num_lines == 1 && y_regs[i].y_type == MCHAR
5439 && STRLEN(y_regs[i].y_array[0]) == 0))
5440 continue;
5441
5442 if (max_kbyte > 0)
5443 {
5444 /* Skip register if there is more text than the maximum size. */
5445 len = 0;
5446 for (j = 0; j < num_lines; j++)
5447 len += (long)STRLEN(y_regs[i].y_array[j]) + 1L;
5448 if (len > (long)max_kbyte * 1024L)
5449 continue;
5450 }
5451
5452 switch (y_regs[i].y_type)
5453 {
5454 case MLINE:
5455 type = (char_u *)"LINE";
5456 break;
5457 case MCHAR:
5458 type = (char_u *)"CHAR";
5459 break;
5460 #ifdef FEAT_VISUAL
5461 case MBLOCK:
5462 type = (char_u *)"BLOCK";
5463 break;
5464 #endif
5465 default:
5466 sprintf((char *)IObuff, _("E574: Unknown register type %d"),
5467 y_regs[i].y_type);
5468 emsg(IObuff);
5469 type = (char_u *)"LINE";
5470 break;
5471 }
5472 if (y_previous == &y_regs[i])
5473 fprintf(fp, "\"");
5474 c = get_register_name(i);
5475 fprintf(fp, "\"%c\t%s\t%d\n", c, type,
5476 #ifdef FEAT_VISUAL
5477 (int)y_regs[i].y_width
5478 #else
5479 0
5480 #endif
5481 );
5482
5483 /* If max_num_lines < 0, then we save ALL the lines in the register */
5484 if (max_num_lines > 0 && num_lines > max_num_lines)
5485 num_lines = max_num_lines;
5486 for (j = 0; j < num_lines; j++)
5487 {
5488 putc('\t', fp);
5489 viminfo_writestring(fp, y_regs[i].y_array[j]);
5490 }
5491 }
5492 }
5493 #endif /* FEAT_VIMINFO */
5494
5495 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
5496 /*
5497 * SELECTION / PRIMARY ('*')
5498 *
5499 * Text selection stuff that uses the GUI selection register '*'. When using a
5500 * GUI this may be text from another window, otherwise it is the last text we
5501 * had highlighted with VIsual mode. With mouse support, clicking the middle
5502 * button performs the paste, otherwise you will need to do <"*p>. "
5503 * If not under X, it is synonymous with the clipboard register '+'.
5504 *
5505 * X CLIPBOARD ('+')
5506 *
5507 * Text selection stuff that uses the GUI clipboard register '+'.
5508 * Under X, this matches the standard cut/paste buffer CLIPBOARD selection.
5509 * It will be used for unnamed cut/pasting is 'clipboard' contains "unnamed",
5510 * otherwise you will need to do <"+p>. "
5511 * If not under X, it is synonymous with the selection register '*'.
5512 */
5513
5514 /*
5515 * Routine to export any final X selection we had to the environment
5516 * so that the text is still available after vim has exited. X selections
5517 * only exist while the owning application exists, so we write to the
5518 * permanent (while X runs) store CUT_BUFFER0.
5519 * Dump the CLIPBOARD selection if we own it (it's logically the more
5520 * 'permanent' of the two), otherwise the PRIMARY one.
5521 * For now, use a hard-coded sanity limit of 1Mb of data.
5522 */
5523 #if defined(FEAT_X11) && defined(FEAT_CLIPBOARD)
5524 void
5525 x11_export_final_selection()
5526 {
5527 Display *dpy;
5528 char_u *str = NULL;
5529 long_u len = 0;
5530 int motion_type = -1;
5531
5532 # ifdef FEAT_GUI
5533 if (gui.in_use)
5534 dpy = X_DISPLAY;
5535 else
5536 # endif
5537 # ifdef FEAT_XCLIPBOARD
5538 dpy = xterm_dpy;
5539 # else
5540 return;
5541 # endif
5542
5543 /* Get selection to export */
5544 if (clip_plus.owned)
5545 motion_type = clip_convert_selection(&str, &len, &clip_plus);
5546 else if (clip_star.owned)
5547 motion_type = clip_convert_selection(&str, &len, &clip_star);
5548
5549 /* Check it's OK */
5550 if (dpy != NULL && str != NULL && motion_type >= 0
5551 && len < 1024*1024 && len > 0)
5552 {
5553 XStoreBuffer(dpy, (char *)str, (int)len, 0);
5554 XFlush(dpy);
5555 }
5556
5557 vim_free(str);
5558 }
5559 #endif
5560
5561 void
5562 clip_free_selection(cbd)
5563 VimClipboard *cbd;
5564 {
5565 struct yankreg *y_ptr = y_current;
5566
5567 if (cbd == &clip_plus)
5568 y_current = &y_regs[PLUS_REGISTER];
5569 else
5570 y_current = &y_regs[STAR_REGISTER];
5571 free_yank_all();
5572 y_current->y_size = 0;
5573 y_current = y_ptr;
5574 }
5575
5576 /*
5577 * Get the selected text and put it in the gui selection register '*' or '+'.
5578 */
5579 void
5580 clip_get_selection(cbd)
5581 VimClipboard *cbd;
5582 {
5583 struct yankreg *old_y_previous, *old_y_current;
5584 pos_T old_cursor;
5585 #ifdef FEAT_VISUAL
5586 pos_T old_visual;
5587 int old_visual_mode;
5588 #endif
5589 colnr_T old_curswant;
5590 int old_set_curswant;
5591 pos_T old_op_start, old_op_end;
5592 oparg_T oa;
5593 cmdarg_T ca;
5594
5595 if (cbd->owned)
5596 {
5597 if ((cbd == &clip_plus && y_regs[PLUS_REGISTER].y_array != NULL)
5598 || (cbd == &clip_star && y_regs[STAR_REGISTER].y_array != NULL))
5599 return;
5600
5601 /* Get the text between clip_star.start & clip_star.end */
5602 old_y_previous = y_previous;
5603 old_y_current = y_current;
5604 old_cursor = curwin->w_cursor;
5605 old_curswant = curwin->w_curswant;
5606 old_set_curswant = curwin->w_set_curswant;
5607 old_op_start = curbuf->b_op_start;
5608 old_op_end = curbuf->b_op_end;
5609 #ifdef FEAT_VISUAL
5610 old_visual = VIsual;
5611 old_visual_mode = VIsual_mode;
5612 #endif
5613 clear_oparg(&oa);
5614 oa.regname = (cbd == &clip_plus ? '+' : '*');
5615 oa.op_type = OP_YANK;
5616 vim_memset(&ca, 0, sizeof(ca));
5617 ca.oap = &oa;
5618 ca.cmdchar = 'y';
5619 ca.count1 = 1;
5620 ca.retval = CA_NO_ADJ_OP_END;
5621 do_pending_operator(&ca, 0, TRUE);
5622 y_previous = old_y_previous;
5623 y_current = old_y_current;
5624 curwin->w_cursor = old_cursor;
5625 changed_cline_bef_curs(); /* need to update w_virtcol et al */
5626 curwin->w_curswant = old_curswant;
5627 curwin->w_set_curswant = old_set_curswant;
5628 curbuf->b_op_start = old_op_start;
5629 curbuf->b_op_end = old_op_end;
5630 #ifdef FEAT_VISUAL
5631 VIsual = old_visual;
5632 VIsual_mode = old_visual_mode;
5633 #endif
5634 }
5635 else
5636 {
5637 clip_free_selection(cbd);
5638
5639 /* Try to get selected text from another window */
5640 clip_gen_request_selection(cbd);
5641 }
5642 }
5643
5644 /* Convert from the GUI selection string into the '*'/'+' register */
5645 void
5646 clip_yank_selection(type, str, len, cbd)
5647 int type;
5648 char_u *str;
5649 long len;
5650 VimClipboard *cbd;
5651 {
5652 struct yankreg *y_ptr;
5653
5654 if (cbd == &clip_plus)
5655 y_ptr = &y_regs[PLUS_REGISTER];
5656 else
5657 y_ptr = &y_regs[STAR_REGISTER];
5658
5659 clip_free_selection(cbd);
5660
5661 str_to_reg(y_ptr, type, str, len, 0L);
5662 }
5663
5664 /*
5665 * Convert the '*'/'+' register into a GUI selection string returned in *str
5666 * with length *len.
5667 * Returns the motion type, or -1 for failure.
5668 */
5669 int
5670 clip_convert_selection(str, len, cbd)
5671 char_u **str;
5672 long_u *len;
5673 VimClipboard *cbd;
5674 {
5675 char_u *p;
5676 int lnum;
5677 int i, j;
5678 int_u eolsize;
5679 struct yankreg *y_ptr;
5680
5681 if (cbd == &clip_plus)
5682 y_ptr = &y_regs[PLUS_REGISTER];
5683 else
5684 y_ptr = &y_regs[STAR_REGISTER];
5685
5686 #ifdef USE_CRNL
5687 eolsize = 2;
5688 #else
5689 eolsize = 1;
5690 #endif
5691
5692 *str = NULL;
5693 *len = 0;
5694 if (y_ptr->y_array == NULL)
5695 return -1;
5696
5697 for (i = 0; i < y_ptr->y_size; i++)
5698 *len += (long_u)STRLEN(y_ptr->y_array[i]) + eolsize;
5699
5700 /*
5701 * Don't want newline character at end of last line if we're in MCHAR mode.
5702 */
5703 if (y_ptr->y_type == MCHAR && *len >= eolsize)
5704 *len -= eolsize;
5705
5706 p = *str = lalloc(*len + 1, TRUE); /* add one to avoid zero */
5707 if (p == NULL)
5708 return -1;
5709 lnum = 0;
5710 for (i = 0, j = 0; i < (int)*len; i++, j++)
5711 {
5712 if (y_ptr->y_array[lnum][j] == '\n')
5713 p[i] = NUL;
5714 else if (y_ptr->y_array[lnum][j] == NUL)
5715 {
5716 #ifdef USE_CRNL
5717 p[i++] = '\r';
5718 #endif
5719 #ifdef USE_CR
5720 p[i] = '\r';
5721 #else
5722 p[i] = '\n';
5723 #endif
5724 lnum++;
5725 j = -1;
5726 }
5727 else
5728 p[i] = y_ptr->y_array[lnum][j];
5729 }
5730 return y_ptr->y_type;
5731 }
5732
5733
5734 # if defined(FEAT_VISUAL) || defined(FEAT_EVAL)
5735 /*
5736 * If we have written to a clipboard register, send the text to the clipboard.
5737 */
5738 static void
5739 may_set_selection()
5740 {
5741 if (y_current == &(y_regs[STAR_REGISTER]) && clip_star.available)
5742 {
5743 clip_own_selection(&clip_star);
5744 clip_gen_set_selection(&clip_star);
5745 }
5746 else if (y_current == &(y_regs[PLUS_REGISTER]) && clip_plus.available)
5747 {
5748 clip_own_selection(&clip_plus);
5749 clip_gen_set_selection(&clip_plus);
5750 }
5751 }
5752 # endif
5753
5754 #endif /* FEAT_CLIPBOARD || PROTO */
5755
5756
5757 #if defined(FEAT_DND) || defined(PROTO)
5758 /*
5759 * Replace the contents of the '~' register with str.
5760 */
5761 void
5762 dnd_yank_drag_data(str, len)
5763 char_u *str;
5764 long len;
5765 {
5766 struct yankreg *curr;
5767
5768 curr = y_current;
5769 y_current = &y_regs[TILDE_REGISTER];
5770 free_yank_all();
5771 str_to_reg(y_current, MCHAR, str, len, 0L);
5772 y_current = curr;
5773 }
5774 #endif
5775
5776
5777 #if defined(FEAT_EVAL) || defined(PROTO)
5778 /*
5779 * Return the type of a register.
5780 * Used for getregtype()
5781 * Returns MAUTO for error.
5782 */
5783 char_u
5784 get_reg_type(regname, reglen)
5785 int regname;
5786 long *reglen;
5787 {
5788 switch (regname)
5789 {
5790 case '%': /* file name */
5791 case '#': /* alternate file name */
5792 case '=': /* expression */
5793 case ':': /* last command line */
5794 case '/': /* last search-pattern */
5795 case '.': /* last inserted text */
5796 #ifdef FEAT_SEARCHPATH
5797 case Ctrl_F: /* Filename under cursor */
5798 case Ctrl_P: /* Path under cursor, expand via "path" */
5799 #endif
5800 case Ctrl_W: /* word under cursor */
5801 case Ctrl_A: /* WORD (mnemonic All) under cursor */
5802 case '_': /* black hole: always empty */
5803 return MCHAR;
5804 }
5805
5806 #ifdef FEAT_CLIPBOARD
5807 regname = may_get_selection(regname);
5808 #endif
5809
5810 /* Should we check for a valid name? */
5811 get_yank_register(regname, FALSE);
5812
5813 if (y_current->y_array != NULL)
5814 {
5815 #ifdef FEAT_VISUAL
5816 if (reglen != NULL && y_current->y_type == MBLOCK)
5817 *reglen = y_current->y_width;
5818 #endif
5819 return y_current->y_type;
5820 }
5821 return MAUTO;
5822 }
5823
5824 /*
5825 * Return the contents of a register as a single allocated string.
5826 * Used for "@r" in expressions and for getreg().
5827 * Returns NULL for error.
5828 */
5829 char_u *
5830 get_reg_contents(regname, allowexpr, expr_src)
5831 int regname;
5832 int allowexpr; /* allow "=" register */
5833 int expr_src; /* get expression for "=" register */
5834 {
5835 long i;
5836 char_u *retval;
5837 int allocated;
5838 long len;
5839
5840 /* Don't allow using an expression register inside an expression */
5841 if (regname == '=')
5842 {
5843 if (allowexpr)
5844 {
5845 if (expr_src)
5846 return get_expr_line_src();
5847 return get_expr_line();
5848 }
5849 return NULL;
5850 }
5851
5852 if (regname == '@') /* "@@" is used for unnamed register */
5853 regname = '"';
5854
5855 /* check for valid regname */
5856 if (regname != NUL && !valid_yank_reg(regname, FALSE))
5857 return NULL;
5858
5859 #ifdef FEAT_CLIPBOARD
5860 regname = may_get_selection(regname);
5861 #endif
5862
5863 if (get_spec_reg(regname, &retval, &allocated, FALSE))
5864 {
5865 if (retval == NULL)
5866 return NULL;
5867 if (!allocated)
5868 retval = vim_strsave(retval);
5869 return retval;
5870 }
5871
5872 get_yank_register(regname, FALSE);
5873 if (y_current->y_array == NULL)
5874 return NULL;
5875
5876 /*
5877 * Compute length of resulting string.
5878 */
5879 len = 0;
5880 for (i = 0; i < y_current->y_size; ++i)
5881 {
5882 len += (long)STRLEN(y_current->y_array[i]);
5883 /*
5884 * Insert a newline between lines and after last line if
5885 * y_type is MLINE.
5886 */
5887 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
5888 ++len;
5889 }
5890
5891 retval = lalloc(len + 1, TRUE);
5892
5893 /*
5894 * Copy the lines of the yank register into the string.
5895 */
5896 if (retval != NULL)
5897 {
5898 len = 0;
5899 for (i = 0; i < y_current->y_size; ++i)
5900 {
5901 STRCPY(retval + len, y_current->y_array[i]);
5902 len += (long)STRLEN(retval + len);
5903
5904 /*
5905 * Insert a NL between lines and after the last line if y_type is
5906 * MLINE.
5907 */
5908 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
5909 retval[len++] = '\n';
5910 }
5911 retval[len] = NUL;
5912 }
5913
5914 return retval;
5915 }
5916
5917 /*
5918 * Store string "str" in register "name".
5919 * "maxlen" is the maximum number of bytes to use, -1 for all bytes.
5920 * If "must_append" is TRUE, always append to the register. Otherwise append
5921 * if "name" is an uppercase letter.
5922 * Note: "maxlen" and "must_append" don't work for the "/" register.
5923 * Careful: 'str' is modified, you may have to use a copy!
5924 * If "str" ends in '\n' or '\r', use linewise, otherwise use characterwise.
5925 */
5926 void
5927 write_reg_contents(name, str, maxlen, must_append)
5928 int name;
5929 char_u *str;
5930 int maxlen;
5931 int must_append;
5932 {
5933 write_reg_contents_ex(name, str, maxlen, must_append, MAUTO, 0L);
5934 }
5935
5936 void
5937 write_reg_contents_ex(name, str, maxlen, must_append, yank_type, block_len)
5938 int name;
5939 char_u *str;
5940 int maxlen;
5941 int must_append;
5942 int yank_type;
5943 long block_len;
5944 {
5945 struct yankreg *old_y_previous, *old_y_current;
5946 long len;
5947
5948 if (maxlen >= 0)
5949 len = maxlen;
5950 else
5951 len = (long)STRLEN(str);
5952
5953 /* Special case: '/' search pattern */
5954 if (name == '/')
5955 {
5956 set_last_search_pat(str, RE_SEARCH, TRUE, TRUE);
5957 return;
5958 }
5959
5960 #ifdef FEAT_EVAL
5961 if (name == '=')
5962 {
5963 char_u *p, *s;
5964
5965 p = vim_strnsave(str, (int)len);
5966 if (p == NULL)
5967 return;
5968 if (must_append)
5969 {
5970 s = concat_str(get_expr_line_src(), p);
5971 vim_free(p);
5972 p = s;
5973
5974 }
5975 set_expr_line(p);
5976 return;
5977 }
5978 #endif
5979
5980 if (!valid_yank_reg(name, TRUE)) /* check for valid reg name */
5981 {
5982 emsg_invreg(name);
5983 return;
5984 }
5985
5986 if (name == '_') /* black hole: nothing to do */
5987 return;
5988
5989 /* Don't want to change the current (unnamed) register */
5990 old_y_previous = y_previous;
5991 old_y_current = y_current;
5992
5993 get_yank_register(name, TRUE);
5994 if (!y_append && !must_append)
5995 free_yank_all();
5996 #ifndef FEAT_VISUAL
5997 /* Just in case - make sure we don't use MBLOCK */
5998 if (yank_type == MBLOCK)
5999 yank_type = MAUTO;
6000 #endif
6001 if (yank_type == MAUTO)
6002 yank_type = ((len > 0 && (str[len - 1] == '\n' || str[len - 1] == '\r'))
6003 ? MLINE : MCHAR);
6004 str_to_reg(y_current, yank_type, str, len, block_len);
6005
6006 # ifdef FEAT_CLIPBOARD
6007 /* Send text of clipboard register to the clipboard. */
6008 may_set_selection();
6009 # endif
6010
6011 /* ':let @" = "val"' should change the meaning of the "" register */
6012 if (name != '"')
6013 y_previous = old_y_previous;
6014 y_current = old_y_current;
6015 }
6016 #endif /* FEAT_EVAL */
6017
6018 #if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
6019 /*
6020 * Put a string into a register. When the register is not empty, the string
6021 * is appended.
6022 */
6023 static void
6024 str_to_reg(y_ptr, type, str, len, blocklen)
6025 struct yankreg *y_ptr; /* pointer to yank register */
6026 int type; /* MCHAR, MLINE or MBLOCK */
6027 char_u *str; /* string to put in register */
6028 long len; /* length of string */
6029 long blocklen; /* width of Visual block */
6030 {
6031 int lnum;
6032 long start;
6033 long i;
6034 int extra;
6035 int newlines; /* number of lines added */
6036 int extraline = 0; /* extra line at the end */
6037 int append = FALSE; /* append to last line in register */
6038 char_u *s;
6039 char_u **pp;
6040 #ifdef FEAT_VISUAL
6041 long maxlen;
6042 #endif
6043
6044 if (y_ptr->y_array == NULL) /* NULL means emtpy register */
6045 y_ptr->y_size = 0;
6046
6047 /*
6048 * Count the number of lines within the string
6049 */
6050 newlines = 0;
6051 for (i = 0; i < len; i++)
6052 if (str[i] == '\n')
6053 ++newlines;
6054 if (type == MCHAR || len == 0 || str[len - 1] != '\n')
6055 {
6056 extraline = 1;
6057 ++newlines; /* count extra newline at the end */
6058 }
6059 if (y_ptr->y_size > 0 && y_ptr->y_type == MCHAR)
6060 {
6061 append = TRUE;
6062 --newlines; /* uncount newline when appending first line */
6063 }
6064
6065 /*
6066 * Allocate an array to hold the pointers to the new register lines.
6067 * If the register was not empty, move the existing lines to the new array.
6068 */
6069 pp = (char_u **)lalloc_clear((y_ptr->y_size + newlines)
6070 * sizeof(char_u *), TRUE);
6071 if (pp == NULL) /* out of memory */
6072 return;
6073 for (lnum = 0; lnum < y_ptr->y_size; ++lnum)
6074 pp[lnum] = y_ptr->y_array[lnum];
6075 vim_free(y_ptr->y_array);
6076 y_ptr->y_array = pp;
6077 #ifdef FEAT_VISUAL
6078 maxlen = 0;
6079 #endif
6080
6081 /*
6082 * Find the end of each line and save it into the array.
6083 */
6084 for (start = 0; start < len + extraline; start += i + 1)
6085 {
6086 for (i = start; i < len; ++i) /* find the end of the line */
6087 if (str[i] == '\n')
6088 break;
6089 i -= start; /* i is now length of line */
6090 #ifdef FEAT_VISUAL
6091 if (i > maxlen)
6092 maxlen = i;
6093 #endif
6094 if (append)
6095 {
6096 --lnum;
6097 extra = (int)STRLEN(y_ptr->y_array[lnum]);
6098 }
6099 else
6100 extra = 0;
6101 s = alloc((unsigned)(i + extra + 1));
6102 if (s == NULL)
6103 break;
6104 if (extra)
6105 mch_memmove(s, y_ptr->y_array[lnum], (size_t)extra);
6106 if (append)
6107 vim_free(y_ptr->y_array[lnum]);
6108 if (i)
6109 mch_memmove(s + extra, str + start, (size_t)i);
6110 extra += i;
6111 s[extra] = NUL;
6112 y_ptr->y_array[lnum++] = s;
6113 while (--extra >= 0)
6114 {
6115 if (*s == NUL)
6116 *s = '\n'; /* replace NUL with newline */
6117 ++s;
6118 }
6119 append = FALSE; /* only first line is appended */
6120 }
6121 y_ptr->y_type = type;
6122 y_ptr->y_size = lnum;
6123 # ifdef FEAT_VISUAL
6124 if (type == MBLOCK)
6125 y_ptr->y_width = (blocklen < 0 ? maxlen - 1 : blocklen);
6126 else
6127 y_ptr->y_width = 0;
6128 # endif
6129 }
6130 #endif /* FEAT_CLIPBOARD || FEAT_EVAL || PROTO */
6131
6132 void
6133 clear_oparg(oap)
6134 oparg_T *oap;
6135 {
6136 vim_memset(oap, 0, sizeof(oparg_T));
6137 }
6138
6139 static long line_count_info __ARGS((char_u *line, long *wc, long *cc, long limit, int eol_size));
6140
6141 /*
6142 * Count the number of bytes, characters and "words" in a line.
6143 *
6144 * "Words" are counted by looking for boundaries between non-space and
6145 * space characters. (it seems to produce results that match 'wc'.)
6146 *
6147 * Return value is byte count; word count for the line is added to "*wc".
6148 * Char count is added to "*cc".
6149 *
6150 * The function will only examine the first "limit" characters in the
6151 * line, stopping if it encounters an end-of-line (NUL byte). In that
6152 * case, eol_size will be added to the character count to account for
6153 * the size of the EOL character.
6154 */
6155 static long
6156 line_count_info(line, wc, cc, limit, eol_size)
6157 char_u *line;
6158 long *wc;
6159 long *cc;
6160 long limit;
6161 int eol_size;
6162 {
6163 long i;
6164 long words = 0;
6165 long chars = 0;
6166 int is_word = 0;
6167
6168 for (i = 0; line[i] && i < limit; )
6169 {
6170 if (is_word)
6171 {
6172 if (vim_isspace(line[i]))
6173 {
6174 words++;
6175 is_word = 0;
6176 }
6177 }
6178 else if (!vim_isspace(line[i]))
6179 is_word = 1;
6180 ++chars;
6181 #ifdef FEAT_MBYTE
6182 i += (*mb_ptr2len)(line + i);
6183 #else
6184 ++i;
6185 #endif
6186 }
6187
6188 if (is_word)
6189 words++;
6190 *wc += words;
6191
6192 /* Add eol_size if the end of line was reached before hitting limit. */
6193 if (line[i] == NUL && i < limit)
6194 {
6195 i += eol_size;
6196 chars += eol_size;
6197 }
6198 *cc += chars;
6199 return i;
6200 }
6201
6202 /*
6203 * Give some info about the position of the cursor (for "g CTRL-G").
6204 * In Visual mode, give some info about the selected region. (In this case,
6205 * the *_count_cursor variables store running totals for the selection.)
6206 */
6207 void
6208 cursor_pos_info()
6209 {
6210 char_u *p;
6211 char_u buf1[50];
6212 char_u buf2[40];
6213 linenr_T lnum;
6214 long byte_count = 0;
6215 long byte_count_cursor = 0;
6216 long char_count = 0;
6217 long char_count_cursor = 0;
6218 long word_count = 0;
6219 long word_count_cursor = 0;
6220 int eol_size;
6221 long last_check = 100000L;
6222 #ifdef FEAT_VISUAL
6223 long line_count_selected = 0;
6224 pos_T min_pos, max_pos;
6225 oparg_T oparg;
6226 struct block_def bd;
6227 #endif
6228
6229 /*
6230 * Compute the length of the file in characters.
6231 */
6232 if (curbuf->b_ml.ml_flags & ML_EMPTY)
6233 {
6234 MSG(_(no_lines_msg));
6235 }
6236 else
6237 {
6238 if (get_fileformat(curbuf) == EOL_DOS)
6239 eol_size = 2;
6240 else
6241 eol_size = 1;
6242
6243 #ifdef FEAT_VISUAL
6244 if (VIsual_active)
6245 {
6246 if (lt(VIsual, curwin->w_cursor))
6247 {
6248 min_pos = VIsual;
6249 max_pos = curwin->w_cursor;
6250 }
6251 else
6252 {
6253 min_pos = curwin->w_cursor;
6254 max_pos = VIsual;
6255 }
6256 if (*p_sel == 'e' && max_pos.col > 0)
6257 --max_pos.col;
6258
6259 if (VIsual_mode == Ctrl_V)
6260 {
6261 oparg.is_VIsual = 1;
6262 oparg.block_mode = TRUE;
6263 oparg.op_type = OP_NOP;
6264 getvcols(curwin, &min_pos, &max_pos,
6265 &oparg.start_vcol, &oparg.end_vcol);
6266 if (curwin->w_curswant == MAXCOL)
6267 oparg.end_vcol = MAXCOL;
6268 /* Swap the start, end vcol if needed */
6269 if (oparg.end_vcol < oparg.start_vcol)
6270 {
6271 oparg.end_vcol += oparg.start_vcol;
6272 oparg.start_vcol = oparg.end_vcol - oparg.start_vcol;
6273 oparg.end_vcol -= oparg.start_vcol;
6274 }
6275 }
6276 line_count_selected = max_pos.lnum - min_pos.lnum + 1;
6277 }
6278 #endif
6279
6280 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
6281 {
6282 /* Check for a CTRL-C every 100000 characters. */
6283 if (byte_count > last_check)
6284 {
6285 ui_breakcheck();
6286 if (got_int)
6287 return;
6288 last_check = byte_count + 100000L;
6289 }
6290
6291 #ifdef FEAT_VISUAL
6292 /* Do extra processing for VIsual mode. */
6293 if (VIsual_active
6294 && lnum >= min_pos.lnum && lnum <= max_pos.lnum)
6295 {
6296 char_u *s = NULL;
6297 long len = 0L;
6298
6299 switch (VIsual_mode)
6300 {
6301 case Ctrl_V:
6302 # ifdef FEAT_VIRTUALEDIT
6303 virtual_op = virtual_active();
6304 # endif
6305 block_prep(&oparg, &bd, lnum, 0);
6306 # ifdef FEAT_VIRTUALEDIT
6307 virtual_op = MAYBE;
6308 # endif
6309 s = bd.textstart;
6310 len = (long)bd.textlen;
6311 break;
6312 case 'V':
6313 s = ml_get(lnum);
6314 len = MAXCOL;
6315 break;
6316 case 'v':
6317 {
6318 colnr_T start_col = (lnum == min_pos.lnum)
6319 ? min_pos.col : 0;
6320 colnr_T end_col = (lnum == max_pos.lnum)
6321 ? max_pos.col - start_col + 1 : MAXCOL;
6322
6323 s = ml_get(lnum) + start_col;
6324 len = end_col;
6325 }
6326 break;
6327 }
6328 if (s != NULL)
6329 {
6330 byte_count_cursor += line_count_info(s, &word_count_cursor,
6331 &char_count_cursor, len, eol_size);
6332 if (lnum == curbuf->b_ml.ml_line_count
6333 && !curbuf->b_p_eol
6334 && curbuf->b_p_bin
6335 && (long)STRLEN(s) < len)
6336 byte_count_cursor -= eol_size;
6337 }
6338 }
6339 else
6340 #endif
6341 {
6342 /* In non-visual mode, check for the line the cursor is on */
6343 if (lnum == curwin->w_cursor.lnum)
6344 {
6345 word_count_cursor += word_count;
6346 char_count_cursor += char_count;
6347 byte_count_cursor = byte_count +
6348 line_count_info(ml_get(lnum),
6349 &word_count_cursor, &char_count_cursor,
6350 (long)(curwin->w_cursor.col + 1), eol_size);
6351 }
6352 }
6353 /* Add to the running totals */
6354 byte_count += line_count_info(ml_get(lnum), &word_count,
6355 &char_count, (long)MAXCOL, eol_size);
6356 }
6357
6358 /* Correction for when last line doesn't have an EOL. */
6359 if (!curbuf->b_p_eol && curbuf->b_p_bin)
6360 byte_count -= eol_size;
6361
6362 #ifdef FEAT_VISUAL
6363 if (VIsual_active)
6364 {
6365 if (VIsual_mode == Ctrl_V && curwin->w_curswant < MAXCOL)
6366 {
6367 getvcols(curwin, &min_pos, &max_pos, &min_pos.col,
6368 &max_pos.col);
6369 sprintf((char *)buf1, _("%ld Cols; "),
6370 (long)(oparg.end_vcol - oparg.start_vcol + 1));
6371 }
6372 else
6373 buf1[0] = NUL;
6374
6375 if (char_count_cursor == byte_count_cursor
6376 && char_count == byte_count)
6377 sprintf((char *)IObuff, _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Bytes"),
6378 buf1, line_count_selected,
6379 (long)curbuf->b_ml.ml_line_count,
6380 word_count_cursor, word_count,
6381 byte_count_cursor, byte_count);
6382 else
6383 sprintf((char *)IObuff, _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Chars; %ld of %ld Bytes"),
6384 buf1, line_count_selected,
6385 (long)curbuf->b_ml.ml_line_count,
6386 word_count_cursor, word_count,
6387 char_count_cursor, char_count,
6388 byte_count_cursor, byte_count);
6389 }
6390 else
6391 #endif
6392 {
6393 p = ml_get_curline();
6394 validate_virtcol();
6395 col_print(buf1, (int)curwin->w_cursor.col + 1,
6396 (int)curwin->w_virtcol + 1);
6397 col_print(buf2, (int)STRLEN(p), linetabsize(p));
6398
6399 if (char_count_cursor == byte_count_cursor
6400 && char_count == byte_count)
6401 sprintf((char *)IObuff, _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Byte %ld of %ld"),
6402 (char *)buf1, (char *)buf2,
6403 (long)curwin->w_cursor.lnum,
6404 (long)curbuf->b_ml.ml_line_count,
6405 word_count_cursor, word_count,
6406 byte_count_cursor, byte_count);
6407 else
6408 sprintf((char *)IObuff, _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Char %ld of %ld; Byte %ld of %ld"),
6409 (char *)buf1, (char *)buf2,
6410 (long)curwin->w_cursor.lnum,
6411 (long)curbuf->b_ml.ml_line_count,
6412 word_count_cursor, word_count,
6413 char_count_cursor, char_count,
6414 byte_count_cursor, byte_count);
6415 }
6416
6417 #ifdef FEAT_MBYTE
6418 byte_count = bomb_size();
6419 if (byte_count > 0)
6420 sprintf((char *)IObuff + STRLEN(IObuff), _("(+%ld for BOM)"),
6421 byte_count);
6422 #endif
6423 /* Don't shorten this message, the user asked for it. */
6424 p = p_shm;
6425 p_shm = (char_u *)"";
6426 msg(IObuff);
6427 p_shm = p;
6428 }
6429 }
Vim for the Mac