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Bram Moolenaar071d4272004-06-13 20:20:40 +00001/* 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 */
55static 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
65static struct yankreg *y_current; /* ptr to current yankreg */
66static int y_append; /* TRUE when appending */
67static 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 */
73struct 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
94static void shift_block __ARGS((oparg_T *oap, int amount));
95static void block_insert __ARGS((oparg_T *oap, char_u *s, int b_insert, struct block_def*bdp));
96#endif
Bram Moolenaar071d4272004-06-13 20:20:40 +000097static int stuff_yank __ARGS((int, char_u *));
98static void put_reedit_in_typebuf __ARGS((void));
99static int put_in_typebuf __ARGS((char_u *s, int colon));
100static void stuffescaped __ARGS((char_u *arg, int literally));
Bram Moolenaar071d4272004-06-13 20:20:40 +0000101#ifdef FEAT_MBYTE
102static void mb_adjust_opend __ARGS((oparg_T *oap));
103#endif
104static void free_yank __ARGS((long));
105static void free_yank_all __ARGS((void));
106static int yank_copy_line __ARGS((struct block_def *bd, long y_idx));
107#ifdef FEAT_CLIPBOARD
108static void copy_yank_reg __ARGS((struct yankreg *reg));
109# if defined(FEAT_VISUAL) || defined(FEAT_EVAL)
110static void may_set_selection __ARGS((void));
111# endif
112#endif
113static void dis_msg __ARGS((char_u *p, int skip_esc));
114#ifdef FEAT_VISUAL
115static void block_prep __ARGS((oparg_T *oap, struct block_def *, linenr_T, int));
116#endif
117#if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
118static void str_to_reg __ARGS((struct yankreg *y_ptr, int type, char_u *str, long len, long blocklen));
119#endif
120static int ends_in_white __ARGS((linenr_T lnum));
121#ifdef FEAT_COMMENTS
122static int same_leader __ARGS((linenr_T lnum, int, char_u *, int, char_u *));
123static int fmt_check_par __ARGS((linenr_T, int *, char_u **, int do_comments));
124#else
125static int fmt_check_par __ARGS((linenr_T));
126#endif
127
128/*
129 * The names of operators.
130 * IMPORTANT: Index must correspond with defines in vim.h!!!
131 * The third field indicates whether the operator always works on lines.
132 */
133static char opchars[][3] =
134{
135 {NUL, NUL, FALSE}, /* OP_NOP */
136 {'d', NUL, FALSE}, /* OP_DELETE */
137 {'y', NUL, FALSE}, /* OP_YANK */
138 {'c', NUL, FALSE}, /* OP_CHANGE */
139 {'<', NUL, TRUE}, /* OP_LSHIFT */
140 {'>', NUL, TRUE}, /* OP_RSHIFT */
141 {'!', NUL, TRUE}, /* OP_FILTER */
142 {'g', '~', FALSE}, /* OP_TILDE */
143 {'=', NUL, TRUE}, /* OP_INDENT */
144 {'g', 'q', TRUE}, /* OP_FORMAT */
145 {':', NUL, TRUE}, /* OP_COLON */
146 {'g', 'U', FALSE}, /* OP_UPPER */
147 {'g', 'u', FALSE}, /* OP_LOWER */
148 {'J', NUL, TRUE}, /* DO_JOIN */
149 {'g', 'J', TRUE}, /* DO_JOIN_NS */
150 {'g', '?', FALSE}, /* OP_ROT13 */
151 {'r', NUL, FALSE}, /* OP_REPLACE */
152 {'I', NUL, FALSE}, /* OP_INSERT */
153 {'A', NUL, FALSE}, /* OP_APPEND */
154 {'z', 'f', TRUE}, /* OP_FOLD */
155 {'z', 'o', TRUE}, /* OP_FOLDOPEN */
156 {'z', 'O', TRUE}, /* OP_FOLDOPENREC */
157 {'z', 'c', TRUE}, /* OP_FOLDCLOSE */
158 {'z', 'C', TRUE}, /* OP_FOLDCLOSEREC */
159 {'z', 'd', TRUE}, /* OP_FOLDDEL */
160 {'z', 'D', TRUE}, /* OP_FOLDDELREC */
161 {'g', 'w', TRUE}, /* OP_FORMAT2 */
162};
163
164/*
165 * Translate a command name into an operator type.
166 * Must only be called with a valid operator name!
167 */
168 int
169get_op_type(char1, char2)
170 int char1;
171 int char2;
172{
173 int i;
174
175 if (char1 == 'r') /* ignore second character */
176 return OP_REPLACE;
177 if (char1 == '~') /* when tilde is an operator */
178 return OP_TILDE;
179 for (i = 0; ; ++i)
180 if (opchars[i][0] == char1 && opchars[i][1] == char2)
181 break;
182 return i;
183}
184
185#if defined(FEAT_VISUAL) || defined(PROTO)
186/*
187 * Return TRUE if operator "op" always works on whole lines.
188 */
189 int
190op_on_lines(op)
191 int op;
192{
193 return opchars[op][2];
194}
195#endif
196
197/*
198 * Get first operator command character.
199 * Returns 'g' or 'z' if there is another command character.
200 */
201 int
202get_op_char(optype)
203 int optype;
204{
205 return opchars[optype][0];
206}
207
208/*
209 * Get second operator command character.
210 */
211 int
212get_extra_op_char(optype)
213 int optype;
214{
215 return opchars[optype][1];
216}
217
218/*
219 * op_shift - handle a shift operation
220 */
221 void
222op_shift(oap, curs_top, amount)
223 oparg_T *oap;
224 int curs_top;
225 int amount;
226{
227 long i;
228 int first_char;
229 char_u *s;
230#ifdef FEAT_VISUAL
231 int block_col = 0;
232#endif
233
234 if (u_save((linenr_T)(oap->start.lnum - 1),
235 (linenr_T)(oap->end.lnum + 1)) == FAIL)
236 return;
237
238#ifdef FEAT_VISUAL
239 if (oap->block_mode)
240 block_col = curwin->w_cursor.col;
241#endif
242
243 for (i = oap->line_count; --i >= 0; )
244 {
245 first_char = *ml_get_curline();
246 if (first_char == NUL) /* empty line */
247 curwin->w_cursor.col = 0;
248#ifdef FEAT_VISUALEXTRA
249 else if (oap->block_mode)
250 shift_block(oap, amount);
251#endif
252 else
253 /* Move the line right if it doesn't start with '#', 'smartindent'
254 * isn't set or 'cindent' isn't set or '#' isn't in 'cino'. */
255#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
256 if (first_char != '#' || !preprocs_left())
257#endif
258 {
259 shift_line(oap->op_type == OP_LSHIFT, p_sr, amount);
260 }
261 ++curwin->w_cursor.lnum;
262 }
263
264 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L);
265
266#ifdef FEAT_VISUAL
267 if (oap->block_mode)
268 {
269 curwin->w_cursor.lnum = oap->start.lnum;
270 curwin->w_cursor.col = block_col;
271 }
272 else
273#endif
274 if (curs_top) /* put cursor on first line, for ">>" */
275 {
276 curwin->w_cursor.lnum = oap->start.lnum;
277 beginline(BL_SOL | BL_FIX); /* shift_line() may have set cursor.col */
278 }
279 else
280 --curwin->w_cursor.lnum; /* put cursor on last line, for ":>" */
281
282 if (oap->line_count > p_report)
283 {
284 if (oap->op_type == OP_RSHIFT)
285 s = (char_u *)">";
286 else
287 s = (char_u *)"<";
288 if (oap->line_count == 1)
289 {
290 if (amount == 1)
291 sprintf((char *)IObuff, _("1 line %sed 1 time"), s);
292 else
293 sprintf((char *)IObuff, _("1 line %sed %d times"), s, amount);
294 }
295 else
296 {
297 if (amount == 1)
298 sprintf((char *)IObuff, _("%ld lines %sed 1 time"),
299 oap->line_count, s);
300 else
301 sprintf((char *)IObuff, _("%ld lines %sed %d times"),
302 oap->line_count, s, amount);
303 }
304 msg(IObuff);
305 }
306
307 /*
308 * Set "'[" and "']" marks.
309 */
310 curbuf->b_op_start = oap->start;
311 curbuf->b_op_end.lnum = oap->end.lnum;
312 curbuf->b_op_end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
313 if (curbuf->b_op_end.col > 0)
314 --curbuf->b_op_end.col;
315}
316
317/*
318 * shift the current line one shiftwidth left (if left != 0) or right
319 * leaves cursor on first blank in the line
320 */
321 void
322shift_line(left, round, amount)
323 int left;
324 int round;
325 int amount;
326{
327 int count;
328 int i, j;
329 int p_sw = (int)curbuf->b_p_sw;
330
331 count = get_indent(); /* get current indent */
332
333 if (round) /* round off indent */
334 {
335 i = count / p_sw; /* number of p_sw rounded down */
336 j = count % p_sw; /* extra spaces */
337 if (j && left) /* first remove extra spaces */
338 --amount;
339 if (left)
340 {
341 i -= amount;
342 if (i < 0)
343 i = 0;
344 }
345 else
346 i += amount;
347 count = i * p_sw;
348 }
349 else /* original vi indent */
350 {
351 if (left)
352 {
353 count -= p_sw * amount;
354 if (count < 0)
355 count = 0;
356 }
357 else
358 count += p_sw * amount;
359 }
360
361 /* Set new indent */
362#ifdef FEAT_VREPLACE
363 if (State & VREPLACE_FLAG)
364 change_indent(INDENT_SET, count, FALSE, NUL);
365 else
366#endif
367 (void)set_indent(count, SIN_CHANGED);
368}
369
370#if defined(FEAT_VISUALEXTRA) || defined(PROTO)
371/*
372 * Shift one line of the current block one shiftwidth right or left.
373 * Leaves cursor on first character in block.
374 */
375 static void
376shift_block(oap, amount)
377 oparg_T *oap;
378 int amount;
379{
380 int left = (oap->op_type == OP_LSHIFT);
381 int oldstate = State;
382 int total, split;
383 char_u *newp, *oldp, *midp, *ptr;
384 int oldcol = curwin->w_cursor.col;
385 int p_sw = (int)curbuf->b_p_sw;
386 int p_ts = (int)curbuf->b_p_ts;
387 struct block_def bd;
388 int internal = 0;
389 int incr;
390 colnr_T vcol, col = 0, ws_vcol;
391 int i = 0, j = 0;
392 int len;
393
394#ifdef FEAT_RIGHTLEFT
395 int old_p_ri = p_ri;
396
397 p_ri = 0; /* don't want revins in ident */
398#endif
399
400 State = INSERT; /* don't want REPLACE for State */
401 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE);
402 if (bd.is_short)
403 return;
404
405 /* total is number of screen columns to be inserted/removed */
406 total = amount * p_sw;
407 oldp = ml_get_curline();
408
409 if (!left)
410 {
411 /*
412 * 1. Get start vcol
413 * 2. Total ws vcols
414 * 3. Divvy into TABs & spp
415 * 4. Construct new string
416 */
417 total += bd.pre_whitesp; /* all virtual WS upto & incl a split TAB */
418 ws_vcol = bd.start_vcol - bd.pre_whitesp;
419 if (bd.startspaces)
420 {
421#ifdef FEAT_MBYTE
422 if (has_mbyte)
423 bd.textstart += (*mb_ptr2len_check)(bd.textstart);
424#endif
425 ++bd.textstart;
426 }
427 for ( ; vim_iswhite(*bd.textstart); )
428 {
429 incr = lbr_chartabsize_adv(&bd.textstart, (colnr_T)(bd.start_vcol));
430 total += incr;
431 bd.start_vcol += incr;
432 }
433 /* OK, now total=all the VWS reqd, and textstart points at the 1st
434 * non-ws char in the block. */
435 if (!curbuf->b_p_et)
436 i = ((ws_vcol % p_ts) + total) / p_ts; /* number of tabs */
437 if (i)
438 j = ((ws_vcol % p_ts) + total) % p_ts; /* number of spp */
439 else
440 j = total;
441 /* if we're splitting a TAB, allow for it */
442 bd.textcol -= bd.pre_whitesp_c - (bd.startspaces != 0);
443 len = (int)STRLEN(bd.textstart) + 1;
444 newp = alloc_check((unsigned)(bd.textcol + i + j + len));
445 if (newp == NULL)
446 return;
447 vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + len));
448 mch_memmove(newp, oldp, (size_t)bd.textcol);
449 copy_chars(newp + bd.textcol, (size_t)i, TAB);
450 copy_spaces(newp + bd.textcol + i, (size_t)j);
451 /* the end */
452 mch_memmove(newp + bd.textcol + i + j, bd.textstart, (size_t)len);
453 }
454 else /* left */
455 {
456 vcol = oap->start_vcol;
457 /* walk vcol past ws to be removed */
458 for (midp = oldp + bd.textcol;
459 vcol < (oap->start_vcol + total) && vim_iswhite(*midp); )
460 {
461 incr = lbr_chartabsize_adv(&midp, (colnr_T)vcol);
462 vcol += incr;
463 }
464 /* internal is the block-internal ws replacing a split TAB */
465 if (vcol > (oap->start_vcol + total))
466 {
467 /* we have to split the TAB *(midp-1) */
468 internal = vcol - (oap->start_vcol + total);
469 }
470 /* if 'expandtab' is not set, use TABs */
471
472 split = bd.startspaces + internal;
473 if (split > 0)
474 {
475 if (!curbuf->b_p_et)
476 {
477 for (ptr = oldp, col = 0; ptr < oldp+bd.textcol; )
478 col += lbr_chartabsize_adv(&ptr, (colnr_T)col);
479
480 /* col+1 now equals the start col of the first char of the
481 * block (may be < oap.start_vcol if we're splitting a TAB) */
482 i = ((col % p_ts) + split) / p_ts; /* number of tabs */
483 }
484 if (i)
485 j = ((col % p_ts) + split) % p_ts; /* number of spp */
486 else
487 j = split;
488 }
489
490 newp = alloc_check(bd.textcol + i + j + (unsigned)STRLEN(midp) + 1);
491 if (newp == NULL)
492 return;
493 vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + STRLEN(midp) + 1));
494
495 /* copy first part we want to keep */
496 mch_memmove(newp, oldp, (size_t)bd.textcol);
497 /* Now copy any TABS and spp to ensure correct alignment! */
498 while (vim_iswhite(*midp))
499 {
500 if (*midp == TAB)
501 i++;
502 else /*space */
503 j++;
504 midp++;
505 }
506 /* We might have an extra TAB worth of spp now! */
507 if (j / p_ts && !curbuf->b_p_et)
508 {
509 i++;
510 j -= p_ts;
511 }
512 copy_chars(newp + bd.textcol, (size_t)i, TAB);
513 copy_spaces(newp + bd.textcol + i, (size_t)j);
514
515 /* the end */
516 mch_memmove(newp + STRLEN(newp), midp, (size_t)STRLEN(midp) + 1);
517 }
518 /* replace the line */
519 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
520 changed_bytes(curwin->w_cursor.lnum, (colnr_T)bd.textcol);
521 State = oldstate;
522 curwin->w_cursor.col = oldcol;
523#ifdef FEAT_RIGHTLEFT
524 p_ri = old_p_ri;
525#endif
526}
527#endif
528
529#ifdef FEAT_VISUALEXTRA
530/*
531 * Insert string "s" (b_insert ? before : after) block :AKelly
532 * Caller must prepare for undo.
533 */
534 static void
535block_insert(oap, s, b_insert, bdp)
536 oparg_T *oap;
537 char_u *s;
538 int b_insert;
539 struct block_def *bdp;
540{
541 int p_ts;
542 int count = 0; /* extra spaces to replace a cut TAB */
543 int spaces = 0; /* non-zero if cutting a TAB */
544 colnr_T offset; /* pointer along new line */
545 unsigned s_len; /* STRLEN(s) */
546 char_u *newp, *oldp; /* new, old lines */
547 linenr_T lnum; /* loop var */
548 int oldstate = State;
549
550 State = INSERT; /* don't want REPLACE for State */
551 s_len = (unsigned)STRLEN(s);
552
553 for (lnum = oap->start.lnum + 1; lnum <= oap->end.lnum; lnum++)
554 {
555 block_prep(oap, bdp, lnum, TRUE);
556 if (bdp->is_short && b_insert)
557 continue; /* OP_INSERT, line ends before block start */
558
559 oldp = ml_get(lnum);
560
561 if (b_insert)
562 {
563 p_ts = bdp->start_char_vcols;
564 spaces = bdp->startspaces;
565 if (spaces != 0)
566 count = p_ts - 1; /* we're cutting a TAB */
567 offset = bdp->textcol;
568 }
569 else /* append */
570 {
571 p_ts = bdp->end_char_vcols;
572 if (!bdp->is_short) /* spaces = padding after block */
573 {
574 spaces = (bdp->endspaces ? p_ts - bdp->endspaces : 0);
575 if (spaces != 0)
576 count = p_ts - 1; /* we're cutting a TAB */
577 offset = bdp->textcol + bdp->textlen - (spaces != 0);
578 }
579 else /* spaces = padding to block edge */
580 {
581 /* if $ used, just append to EOL (ie spaces==0) */
582 if (!bdp->is_MAX)
583 spaces = (oap->end_vcol - bdp->end_vcol) + 1;
584 count = spaces;
585 offset = bdp->textcol + bdp->textlen;
586 }
587 }
588
589 newp = alloc_check((unsigned)(STRLEN(oldp)) + s_len + count + 1);
590 if (newp == NULL)
591 continue;
592
593 /* copy up to shifted part */
594 mch_memmove(newp, oldp, (size_t)(offset));
595 oldp += offset;
596
597 /* insert pre-padding */
598 copy_spaces(newp + offset, (size_t)spaces);
599
600 /* copy the new text */
601 mch_memmove(newp + offset + spaces, s, (size_t)s_len);
602 offset += s_len;
603
604 if (spaces && !bdp->is_short)
605 {
606 /* insert post-padding */
607 copy_spaces(newp + offset + spaces, (size_t)(p_ts - spaces));
608 /* We're splitting a TAB, don't copy it. */
609 oldp++;
610 /* We allowed for that TAB, remember this now */
611 count++;
612 }
613
614 if (spaces > 0)
615 offset += count;
616 mch_memmove(newp + offset, oldp, (size_t)(STRLEN(oldp) + 1));
617
618 ml_replace(lnum, newp, FALSE);
619
620 if (lnum == oap->end.lnum)
621 {
622 /* Set "']" mark to the end of the block instead of the end of
623 * the insert in the first line. */
624 curbuf->b_op_end.lnum = oap->end.lnum;
625 curbuf->b_op_end.col = offset;
626 }
627 } /* for all lnum */
628
629 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L);
630
631 State = oldstate;
632}
633#endif
634
635#if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(PROTO)
636/*
637 * op_reindent - handle reindenting a block of lines.
638 */
639 void
640op_reindent(oap, how)
641 oparg_T *oap;
642 int (*how) __ARGS((void));
643{
644 long i;
645 char_u *l;
646 int count;
647 linenr_T first_changed = 0;
648 linenr_T last_changed = 0;
649 linenr_T start_lnum = curwin->w_cursor.lnum;
650
Bram Moolenaar4317d9b2005-03-18 20:25:31 +0000651 /* Don't even try when 'modifiable' is off. */
652 if (!curbuf->b_p_ma)
653 {
654 EMSG(_(e_modifiable));
655 return;
656 }
657
Bram Moolenaar071d4272004-06-13 20:20:40 +0000658 for (i = oap->line_count; --i >= 0 && !got_int; )
659 {
660 /* it's a slow thing to do, so give feedback so there's no worry that
661 * the computer's just hung. */
662
663 if (i > 1
664 && (i % 50 == 0 || i == oap->line_count - 1)
665 && oap->line_count > p_report)
666 smsg((char_u *)_("%ld lines to indent... "), i);
667
668 /*
669 * Be vi-compatible: For lisp indenting the first line is not
670 * indented, unless there is only one line.
671 */
672#ifdef FEAT_LISP
673 if (i != oap->line_count - 1 || oap->line_count == 1
674 || how != get_lisp_indent)
675#endif
676 {
677 l = skipwhite(ml_get_curline());
678 if (*l == NUL) /* empty or blank line */
679 count = 0;
680 else
681 count = how(); /* get the indent for this line */
682
683 if (set_indent(count, SIN_UNDO))
684 {
685 /* did change the indent, call changed_lines() later */
686 if (first_changed == 0)
687 first_changed = curwin->w_cursor.lnum;
688 last_changed = curwin->w_cursor.lnum;
689 }
690 }
691 ++curwin->w_cursor.lnum;
692 }
693
694 /* put cursor on first non-blank of indented line */
695 curwin->w_cursor.lnum = start_lnum;
696 beginline(BL_SOL | BL_FIX);
697
698 /* Mark changed lines so that they will be redrawn. When Visual
699 * highlighting was present, need to continue until the last line. When
700 * there is no change still need to remove the Visual highlighting. */
701 if (last_changed != 0)
702 changed_lines(first_changed, 0,
703#ifdef FEAT_VISUAL
704 oap->is_VIsual ? start_lnum + oap->line_count :
705#endif
706 last_changed + 1, 0L);
707#ifdef FEAT_VISUAL
708 else if (oap->is_VIsual)
709 redraw_curbuf_later(INVERTED);
710#endif
711
712 if (oap->line_count > p_report)
713 {
714 i = oap->line_count - (i + 1);
715 if (i == 1)
716 MSG(_("1 line indented "));
717 else
718 smsg((char_u *)_("%ld lines indented "), i);
719 }
720 /* set '[ and '] marks */
721 curbuf->b_op_start = oap->start;
722 curbuf->b_op_end = oap->end;
723}
724#endif /* defined(FEAT_LISP) || defined(FEAT_CINDENT) */
725
726#if defined(FEAT_EVAL) || defined(PROTO)
727/*
728 * Keep the last expression line here, for repeating.
729 */
730static char_u *expr_line = NULL;
731
732/*
733 * Get an expression for the "\"=expr1" or "CTRL-R =expr1"
734 * Returns '=' when OK, NUL otherwise.
735 */
736 int
737get_expr_register()
738{
739 char_u *new_line;
740
741 new_line = getcmdline('=', 0L, 0);
742 if (new_line == NULL)
743 return NUL;
744 if (*new_line == NUL) /* use previous line */
745 vim_free(new_line);
746 else
747 set_expr_line(new_line);
748 return '=';
749}
750
751/*
752 * Set the expression for the '=' register.
753 * Argument must be an allocated string.
754 */
755 void
756set_expr_line(new_line)
757 char_u *new_line;
758{
759 vim_free(expr_line);
760 expr_line = new_line;
761}
762
763/*
764 * Get the result of the '=' register expression.
765 * Returns a pointer to allocated memory, or NULL for failure.
766 */
767 char_u *
768get_expr_line()
769{
770 char_u *expr_copy;
771 char_u *rv;
772
773 if (expr_line == NULL)
774 return NULL;
775
776 /* Make a copy of the expression, because evaluating it may cause it to be
777 * changed. */
778 expr_copy = vim_strsave(expr_line);
779 if (expr_copy == NULL)
780 return NULL;
781
782 rv = eval_to_string(expr_copy, NULL);
783 vim_free(expr_copy);
784 return rv;
785}
Bram Moolenaarde934d72005-05-22 22:09:40 +0000786
787/*
788 * Get the '=' register expression itself, without evaluating it.
789 */
790 char_u *
791get_expr_line_src()
792{
793 if (expr_line == NULL)
794 return NULL;
795 return vim_strsave(expr_line);
796}
Bram Moolenaar071d4272004-06-13 20:20:40 +0000797#endif /* FEAT_EVAL */
798
799/*
800 * Check if 'regname' is a valid name of a yank register.
801 * Note: There is no check for 0 (default register), caller should do this
802 */
803 int
804valid_yank_reg(regname, writing)
805 int regname;
806 int writing; /* if TRUE check for writable registers */
807{
808 if ( (regname > 0 && ASCII_ISALNUM(regname))
809 || (!writing && vim_strchr((char_u *)
810#ifdef FEAT_EVAL
811 "/.%#:="
812#else
813 "/.%#:"
814#endif
815 , regname) != NULL)
816 || regname == '"'
817 || regname == '-'
818 || regname == '_'
819#ifdef FEAT_CLIPBOARD
820 || regname == '*'
821 || regname == '+'
822#endif
823#ifdef FEAT_DND
824 || (!writing && regname == '~')
825#endif
826 )
827 return TRUE;
828 return FALSE;
829}
830
831/*
832 * Set y_current and y_append, according to the value of "regname".
833 * Cannot handle the '_' register.
Bram Moolenaar677ee682005-01-27 14:41:15 +0000834 * Must only be called with a valid register name!
Bram Moolenaar071d4272004-06-13 20:20:40 +0000835 *
836 * If regname is 0 and writing, use register 0
837 * If regname is 0 and reading, use previous register
838 */
Bram Moolenaar8299df92004-07-10 09:47:34 +0000839 void
Bram Moolenaar071d4272004-06-13 20:20:40 +0000840get_yank_register(regname, writing)
841 int regname;
842 int writing;
843{
844 int i;
845
846 y_append = FALSE;
847 if ((regname == 0 || regname == '"') && !writing && y_previous != NULL)
848 {
849 y_current = y_previous;
850 return;
851 }
852 i = regname;
853 if (VIM_ISDIGIT(i))
854 i -= '0';
855 else if (ASCII_ISLOWER(i))
856 i = CharOrdLow(i) + 10;
857 else if (ASCII_ISUPPER(i))
858 {
859 i = CharOrdUp(i) + 10;
860 y_append = TRUE;
861 }
862 else if (regname == '-')
863 i = DELETION_REGISTER;
864#ifdef FEAT_CLIPBOARD
865 /* When selection is not available, use register 0 instead of '*' */
866 else if (clip_star.available && regname == '*')
867 i = STAR_REGISTER;
868 /* When clipboard is not available, use register 0 instead of '+' */
869 else if (clip_plus.available && regname == '+')
870 i = PLUS_REGISTER;
871#endif
872#ifdef FEAT_DND
873 else if (!writing && regname == '~')
874 i = TILDE_REGISTER;
875#endif
876 else /* not 0-9, a-z, A-Z or '-': use register 0 */
877 i = 0;
878 y_current = &(y_regs[i]);
879 if (writing) /* remember the register we write into for do_put() */
880 y_previous = y_current;
881}
882
Bram Moolenaar8299df92004-07-10 09:47:34 +0000883#if defined(FEAT_CLIPBOARD) || defined(PROTO)
Bram Moolenaar071d4272004-06-13 20:20:40 +0000884/*
885 * When "regname" is a clipboard register, obtain the selection. If it's not
886 * available return zero, otherwise return "regname".
887 */
Bram Moolenaar8299df92004-07-10 09:47:34 +0000888 int
Bram Moolenaar071d4272004-06-13 20:20:40 +0000889may_get_selection(regname)
890 int regname;
891{
892 if (regname == '*')
893 {
894 if (!clip_star.available)
895 regname = 0;
896 else
897 clip_get_selection(&clip_star);
898 }
899 else if (regname == '+')
900 {
901 if (!clip_plus.available)
902 regname = 0;
903 else
904 clip_get_selection(&clip_plus);
905 }
906 return regname;
907}
908#endif
909
910#if defined(FEAT_VISUAL) || defined(PROTO)
911/*
912 * Obtain the contents of a "normal" register. The register is made empty.
913 * The returned pointer has allocated memory, use put_register() later.
914 */
915 void *
916get_register(name, copy)
917 int name;
918 int copy; /* make a copy, if FALSE make register empty. */
919{
920 static struct yankreg *reg;
921 int i;
922
923#ifdef FEAT_CLIPBOARD
924 /* When Visual area changed, may have to update selection. Obtain the
925 * selection too. */
926 if (name == '*' && clip_star.available && clip_isautosel())
927 {
928 clip_update_selection();
929 may_get_selection(name);
930 }
931#endif
932
933 get_yank_register(name, 0);
934 reg = (struct yankreg *)alloc((unsigned)sizeof(struct yankreg));
935 if (reg != NULL)
936 {
937 *reg = *y_current;
938 if (copy)
939 {
940 /* If we run out of memory some or all of the lines are empty. */
941 if (reg->y_size == 0)
942 reg->y_array = NULL;
943 else
944 reg->y_array = (char_u **)alloc((unsigned)(sizeof(char_u *)
945 * reg->y_size));
946 if (reg->y_array != NULL)
947 {
948 for (i = 0; i < reg->y_size; ++i)
949 reg->y_array[i] = vim_strsave(y_current->y_array[i]);
950 }
951 }
952 else
953 y_current->y_array = NULL;
954 }
955 return (void *)reg;
956}
957
958/*
959 * Put "reg" into register "name". Free any previous contents.
960 */
961 void
962put_register(name, reg)
963 int name;
964 void *reg;
965{
966 get_yank_register(name, 0);
967 free_yank_all();
968 *y_current = *(struct yankreg *)reg;
969
970# ifdef FEAT_CLIPBOARD
971 /* Send text written to clipboard register to the clipboard. */
972 may_set_selection();
973# endif
974}
975#endif
976
977#if defined(FEAT_MOUSE) || defined(PROTO)
978/*
979 * return TRUE if the current yank register has type MLINE
980 */
981 int
982yank_register_mline(regname)
983 int regname;
984{
985 if (regname != 0 && !valid_yank_reg(regname, FALSE))
986 return FALSE;
987 if (regname == '_') /* black hole is always empty */
988 return FALSE;
989 get_yank_register(regname, FALSE);
990 return (y_current->y_type == MLINE);
991}
992#endif
993
994/*
995 * start or stop recording into a yank register
996 *
997 * return FAIL for failure, OK otherwise
998 */
999 int
1000do_record(c)
1001 int c;
1002{
1003 char_u *p;
1004 static int regname;
1005 struct yankreg *old_y_previous, *old_y_current;
1006 int retval;
1007
1008 if (Recording == FALSE) /* start recording */
1009 {
1010 /* registers 0-9, a-z and " are allowed */
1011 if (c < 0 || (!ASCII_ISALNUM(c) && c != '"'))
1012 retval = FAIL;
1013 else
1014 {
1015 Recording = TRUE;
1016 showmode();
1017 regname = c;
1018 retval = OK;
1019 }
1020 }
1021 else /* stop recording */
1022 {
1023 /*
1024 * Get the recorded key hits. K_SPECIAL and CSI will be escaped, so
1025 * that the register can be put into the typeahead buffer without
1026 * translation.
1027 */
1028 Recording = FALSE;
1029 MSG("");
1030 p = get_recorded();
1031 if (p == NULL)
1032 retval = FAIL;
1033 else
1034 {
1035 /*
1036 * We don't want to change the default register here, so save and
1037 * restore the current register name.
1038 */
1039 old_y_previous = y_previous;
1040 old_y_current = y_current;
1041
1042 retval = stuff_yank(regname, p);
1043
1044 y_previous = old_y_previous;
1045 y_current = old_y_current;
1046 }
1047 }
1048 return retval;
1049}
1050
1051/*
1052 * Stuff string "p" into yank register "regname" as a single line (append if
1053 * uppercase). "p" must have been alloced.
1054 *
1055 * return FAIL for failure, OK otherwise
1056 */
1057 static int
1058stuff_yank(regname, p)
1059 int regname;
1060 char_u *p;
1061{
1062 char_u *lp;
1063 char_u **pp;
1064
1065 /* check for read-only register */
1066 if (regname != 0 && !valid_yank_reg(regname, TRUE))
1067 {
1068 vim_free(p);
1069 return FAIL;
1070 }
1071 if (regname == '_') /* black hole: don't do anything */
1072 {
1073 vim_free(p);
1074 return OK;
1075 }
1076 get_yank_register(regname, TRUE);
1077 if (y_append && y_current->y_array != NULL)
1078 {
1079 pp = &(y_current->y_array[y_current->y_size - 1]);
1080 lp = lalloc((long_u)(STRLEN(*pp) + STRLEN(p) + 1), TRUE);
1081 if (lp == NULL)
1082 {
1083 vim_free(p);
1084 return FAIL;
1085 }
1086 STRCPY(lp, *pp);
1087 STRCAT(lp, p);
1088 vim_free(p);
1089 vim_free(*pp);
1090 *pp = lp;
1091 }
1092 else
1093 {
1094 free_yank_all();
1095 if ((y_current->y_array =
1096 (char_u **)alloc((unsigned)sizeof(char_u *))) == NULL)
1097 {
1098 vim_free(p);
1099 return FAIL;
1100 }
1101 y_current->y_array[0] = p;
1102 y_current->y_size = 1;
1103 y_current->y_type = MCHAR; /* used to be MLINE, why? */
1104 }
1105 return OK;
1106}
1107
1108/*
1109 * execute a yank register: copy it into the stuff buffer
1110 *
1111 * return FAIL for failure, OK otherwise
1112 */
1113 int
1114do_execreg(regname, colon, addcr)
1115 int regname;
1116 int colon; /* insert ':' before each line */
1117 int addcr; /* always add '\n' to end of line */
1118{
1119 static int lastc = NUL;
1120 long i;
1121 char_u *p;
1122 int retval = OK;
1123 int remap;
1124
1125 if (regname == '@') /* repeat previous one */
Bram Moolenaar26a60b42005-02-22 08:49:11 +00001126 {
1127 if (lastc == NUL)
1128 {
1129 EMSG(_("E748: No previously used register"));
1130 return FAIL;
1131 }
Bram Moolenaar071d4272004-06-13 20:20:40 +00001132 regname = lastc;
Bram Moolenaar26a60b42005-02-22 08:49:11 +00001133 }
Bram Moolenaar071d4272004-06-13 20:20:40 +00001134 /* check for valid regname */
1135 if (regname == '%' || regname == '#' || !valid_yank_reg(regname, FALSE))
Bram Moolenaar26a60b42005-02-22 08:49:11 +00001136 {
1137 emsg_invreg(regname);
Bram Moolenaar071d4272004-06-13 20:20:40 +00001138 return FAIL;
Bram Moolenaar26a60b42005-02-22 08:49:11 +00001139 }
Bram Moolenaar071d4272004-06-13 20:20:40 +00001140 lastc = regname;
1141
1142#ifdef FEAT_CLIPBOARD
1143 regname = may_get_selection(regname);
1144#endif
1145
1146 if (regname == '_') /* black hole: don't stuff anything */
1147 return OK;
1148
1149#ifdef FEAT_CMDHIST
1150 if (regname == ':') /* use last command line */
1151 {
1152 if (last_cmdline == NULL)
1153 {
1154 EMSG(_(e_nolastcmd));
1155 return FAIL;
1156 }
1157 vim_free(new_last_cmdline); /* don't keep the cmdline containing @: */
1158 new_last_cmdline = NULL;
Bram Moolenaar2df6dcc2004-07-12 15:53:54 +00001159 /* Escape all control characters with a CTRL-V */
1160 p = vim_strsave_escaped_ext(last_cmdline,
Bram Moolenaar5eb86f92004-07-26 12:53:41 +00001161 (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);
Bram Moolenaar2df6dcc2004-07-12 15:53:54 +00001162 if (p != NULL)
1163 retval = put_in_typebuf(p, TRUE);
1164 vim_free(p);
Bram Moolenaar071d4272004-06-13 20:20:40 +00001165 }
1166#endif
1167#ifdef FEAT_EVAL
1168 else if (regname == '=')
1169 {
1170 p = get_expr_line();
1171 if (p == NULL)
1172 return FAIL;
1173 retval = put_in_typebuf(p, colon);
1174 vim_free(p);
1175 }
1176#endif
1177 else if (regname == '.') /* use last inserted text */
1178 {
1179 p = get_last_insert_save();
1180 if (p == NULL)
1181 {
1182 EMSG(_(e_noinstext));
1183 return FAIL;
1184 }
1185 retval = put_in_typebuf(p, colon);
1186 vim_free(p);
1187 }
1188 else
1189 {
1190 get_yank_register(regname, FALSE);
1191 if (y_current->y_array == NULL)
1192 return FAIL;
1193
1194 /* Disallow remaping for ":@r". */
1195 remap = colon ? REMAP_NONE : REMAP_YES;
1196
1197 /*
1198 * Insert lines into typeahead buffer, from last one to first one.
1199 */
1200 put_reedit_in_typebuf();
1201 for (i = y_current->y_size; --i >= 0; )
1202 {
1203 /* insert NL between lines and after last line if type is MLINE */
1204 if (y_current->y_type == MLINE || i < y_current->y_size - 1
1205 || addcr)
1206 {
1207 if (ins_typebuf((char_u *)"\n", remap, 0, TRUE, FALSE) == FAIL)
1208 return FAIL;
1209 }
1210 if (ins_typebuf(y_current->y_array[i], remap, 0, TRUE, FALSE)
1211 == FAIL)
1212 return FAIL;
1213 if (colon && ins_typebuf((char_u *)":", remap, 0, TRUE, FALSE)
1214 == FAIL)
1215 return FAIL;
1216 }
1217 Exec_reg = TRUE; /* disable the 'q' command */
1218 }
1219 return retval;
1220}
1221
1222/*
1223 * If "restart_edit" is not zero, put it in the typeahead buffer, so that it's
1224 * used only after other typeahead has been processed.
1225 */
1226 static void
1227put_reedit_in_typebuf()
1228{
1229 char_u buf[3];
1230
1231 if (restart_edit != NUL)
1232 {
1233 if (restart_edit == 'V')
1234 {
1235 buf[0] = 'g';
1236 buf[1] = 'R';
1237 buf[2] = NUL;
1238 }
1239 else
1240 {
1241 buf[0] = restart_edit == 'I' ? 'i' : restart_edit;
1242 buf[1] = NUL;
1243 }
1244 if (ins_typebuf(buf, REMAP_NONE, 0, TRUE, FALSE) == OK)
1245 restart_edit = NUL;
1246 }
1247}
1248
1249 static int
1250put_in_typebuf(s, colon)
1251 char_u *s;
1252 int colon; /* add ':' before the line */
1253{
1254 int retval = OK;
1255
1256 put_reedit_in_typebuf();
1257 if (colon)
1258 retval = ins_typebuf((char_u *)"\n", REMAP_YES, 0, TRUE, FALSE);
1259 if (retval == OK)
1260 retval = ins_typebuf(s, REMAP_YES, 0, TRUE, FALSE);
1261 if (colon && retval == OK)
1262 retval = ins_typebuf((char_u *)":", REMAP_YES, 0, TRUE, FALSE);
1263 return retval;
1264}
1265
1266/*
1267 * Insert a yank register: copy it into the Read buffer.
1268 * Used by CTRL-R command and middle mouse button in insert mode.
1269 *
1270 * return FAIL for failure, OK otherwise
1271 */
1272 int
1273insert_reg(regname, literally)
1274 int regname;
1275 int literally; /* insert literally, not as if typed */
1276{
1277 long i;
1278 int retval = OK;
1279 char_u *arg;
1280 int allocated;
1281
1282 /*
1283 * It is possible to get into an endless loop by having CTRL-R a in
1284 * register a and then, in insert mode, doing CTRL-R a.
1285 * If you hit CTRL-C, the loop will be broken here.
1286 */
1287 ui_breakcheck();
1288 if (got_int)
1289 return FAIL;
1290
1291 /* check for valid regname */
1292 if (regname != NUL && !valid_yank_reg(regname, FALSE))
1293 return FAIL;
1294
1295#ifdef FEAT_CLIPBOARD
1296 regname = may_get_selection(regname);
1297#endif
1298
1299 if (regname == '.') /* insert last inserted text */
1300 retval = stuff_inserted(NUL, 1L, TRUE);
1301 else if (get_spec_reg(regname, &arg, &allocated, TRUE))
1302 {
1303 if (arg == NULL)
1304 return FAIL;
1305 stuffescaped(arg, literally);
1306 if (allocated)
1307 vim_free(arg);
1308 }
1309 else /* name or number register */
1310 {
1311 get_yank_register(regname, FALSE);
1312 if (y_current->y_array == NULL)
1313 retval = FAIL;
1314 else
1315 {
1316 for (i = 0; i < y_current->y_size; ++i)
1317 {
1318 stuffescaped(y_current->y_array[i], literally);
1319 /*
1320 * Insert a newline between lines and after last line if
1321 * y_type is MLINE.
1322 */
1323 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
1324 stuffcharReadbuff('\n');
1325 }
1326 }
1327 }
1328
1329 return retval;
1330}
1331
1332/*
1333 * Stuff a string into the typeahead buffer, such that edit() will insert it
1334 * literally ("literally" TRUE) or interpret is as typed characters.
1335 */
1336 static void
1337stuffescaped(arg, literally)
1338 char_u *arg;
1339 int literally;
1340{
1341 int c;
1342 char_u *start;
1343
1344 while (*arg != NUL)
1345 {
1346 /* Stuff a sequence of normal ASCII characters, that's fast. Also
1347 * stuff K_SPECIAL to get the effect of a special key when "literally"
1348 * is TRUE. */
1349 start = arg;
1350 while ((*arg >= ' '
1351#ifndef EBCDIC
1352 && *arg < DEL /* EBCDIC: chars above space are normal */
1353#endif
1354 )
1355 || (*arg == K_SPECIAL && !literally))
1356 ++arg;
1357 if (arg > start)
1358 stuffReadbuffLen(start, (long)(arg - start));
1359
1360 /* stuff a single special character */
1361 if (*arg != NUL)
1362 {
1363#ifdef FEAT_MBYTE
1364 if (has_mbyte)
1365 c = mb_ptr2char_adv(&arg);
1366 else
1367#endif
1368 c = *arg++;
1369 if (literally && ((c < ' ' && c != TAB) || c == DEL))
1370 stuffcharReadbuff(Ctrl_V);
1371 stuffcharReadbuff(c);
1372 }
1373 }
1374}
1375
1376/*
1377 * If "regname" is a special register, return a pointer to its value.
1378 */
Bram Moolenaar8299df92004-07-10 09:47:34 +00001379 int
Bram Moolenaar071d4272004-06-13 20:20:40 +00001380get_spec_reg(regname, argp, allocated, errmsg)
1381 int regname;
1382 char_u **argp;
1383 int *allocated;
1384 int errmsg; /* give error message when failing */
1385{
1386 int cnt;
1387
1388 *argp = NULL;
1389 *allocated = FALSE;
1390 switch (regname)
1391 {
1392 case '%': /* file name */
1393 if (errmsg)
1394 check_fname(); /* will give emsg if not set */
1395 *argp = curbuf->b_fname;
1396 return TRUE;
1397
1398 case '#': /* alternate file name */
1399 *argp = getaltfname(errmsg); /* may give emsg if not set */
1400 return TRUE;
1401
1402#ifdef FEAT_EVAL
1403 case '=': /* result of expression */
1404 *argp = get_expr_line();
1405 *allocated = TRUE;
1406 return TRUE;
1407#endif
1408
1409 case ':': /* last command line */
1410 if (last_cmdline == NULL && errmsg)
1411 EMSG(_(e_nolastcmd));
1412 *argp = last_cmdline;
1413 return TRUE;
1414
1415 case '/': /* last search-pattern */
1416 if (last_search_pat() == NULL && errmsg)
1417 EMSG(_(e_noprevre));
1418 *argp = last_search_pat();
1419 return TRUE;
1420
1421 case '.': /* last inserted text */
1422 *argp = get_last_insert_save();
1423 *allocated = TRUE;
1424 if (*argp == NULL && errmsg)
1425 EMSG(_(e_noinstext));
1426 return TRUE;
1427
1428#ifdef FEAT_SEARCHPATH
1429 case Ctrl_F: /* Filename under cursor */
1430 case Ctrl_P: /* Path under cursor, expand via "path" */
1431 if (!errmsg)
1432 return FALSE;
1433 *argp = file_name_at_cursor(FNAME_MESS | FNAME_HYP
1434 | (regname == Ctrl_P ? FNAME_EXP : 0), 1L);
1435 *allocated = TRUE;
1436 return TRUE;
1437#endif
1438
1439 case Ctrl_W: /* word under cursor */
1440 case Ctrl_A: /* WORD (mnemonic All) under cursor */
1441 if (!errmsg)
1442 return FALSE;
1443 cnt = find_ident_under_cursor(argp, regname == Ctrl_W
1444 ? (FIND_IDENT|FIND_STRING) : FIND_STRING);
1445 *argp = cnt ? vim_strnsave(*argp, cnt) : NULL;
1446 *allocated = TRUE;
1447 return TRUE;
1448
1449 case '_': /* black hole: always empty */
1450 *argp = (char_u *)"";
1451 return TRUE;
1452 }
1453
1454 return FALSE;
1455}
1456
1457/*
Bram Moolenaar8299df92004-07-10 09:47:34 +00001458 * Paste a yank register into the command line.
1459 * Only for non-special registers.
1460 * Used by CTRL-R command in command-line mode
Bram Moolenaar071d4272004-06-13 20:20:40 +00001461 * insert_reg() can't be used here, because special characters from the
1462 * register contents will be interpreted as commands.
1463 *
1464 * return FAIL for failure, OK otherwise
1465 */
1466 int
Bram Moolenaar8299df92004-07-10 09:47:34 +00001467cmdline_paste_reg(regname, literally)
Bram Moolenaar071d4272004-06-13 20:20:40 +00001468 int regname;
1469 int literally; /* Insert text literally instead of "as typed" */
1470{
1471 long i;
Bram Moolenaar071d4272004-06-13 20:20:40 +00001472
1473 get_yank_register(regname, FALSE);
1474 if (y_current->y_array == NULL)
1475 return FAIL;
1476
1477 for (i = 0; i < y_current->y_size; ++i)
1478 {
1479 cmdline_paste_str(y_current->y_array[i], literally);
1480
1481 /* insert ^M between lines and after last line if type is MLINE */
1482 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
1483 cmdline_paste_str((char_u *)"\r", literally);
1484
1485 /* Check for CTRL-C, in case someone tries to paste a few thousand
1486 * lines and gets bored. */
1487 ui_breakcheck();
1488 if (got_int)
1489 return FAIL;
1490 }
1491 return OK;
1492}
1493
Bram Moolenaar071d4272004-06-13 20:20:40 +00001494#if defined(FEAT_CLIPBOARD) || defined(PROTO)
1495/*
1496 * Adjust the register name pointed to with "rp" for the clipboard being
1497 * used always and the clipboard being available.
1498 */
1499 void
1500adjust_clip_reg(rp)
1501 int *rp;
1502{
1503 /* If no reg. specified, and "unnamed" is in 'clipboard', use '*' reg. */
1504 if (*rp == 0 && clip_unnamed)
1505 *rp = '*';
1506 if (!clip_star.available && *rp == '*')
1507 *rp = 0;
1508 if (!clip_plus.available && *rp == '+')
1509 *rp = 0;
1510}
1511#endif
1512
1513/*
1514 * op_delete - handle a delete operation
1515 *
1516 * return FAIL if undo failed, OK otherwise.
1517 */
1518 int
1519op_delete(oap)
1520 oparg_T *oap;
1521{
1522 int n;
1523 linenr_T lnum;
1524 char_u *ptr;
1525#ifdef FEAT_VISUAL
1526 char_u *newp, *oldp;
1527 struct block_def bd;
1528#endif
1529 linenr_T old_lcount = curbuf->b_ml.ml_line_count;
1530 int did_yank = FALSE;
1531
1532 if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to do */
1533 return OK;
1534
1535 /* Nothing to delete, return here. Do prepare undo, for op_change(). */
1536 if (oap->empty)
1537 return u_save_cursor();
1538
1539 if (!curbuf->b_p_ma)
1540 {
1541 EMSG(_(e_modifiable));
1542 return FAIL;
1543 }
1544
1545#ifdef FEAT_CLIPBOARD
1546 adjust_clip_reg(&oap->regname);
1547#endif
1548
1549#ifdef FEAT_MBYTE
1550 if (has_mbyte)
1551 mb_adjust_opend(oap);
1552#endif
1553
1554/*
1555 * Imitate the strange Vi behaviour: If the delete spans more than one line
1556 * and motion_type == MCHAR and the result is a blank line, make the delete
1557 * linewise. Don't do this for the change command or Visual mode.
1558 */
1559 if ( oap->motion_type == MCHAR
1560#ifdef FEAT_VISUAL
1561 && !oap->is_VIsual
Bram Moolenaarec2dad62005-01-02 11:36:03 +00001562 && !oap->block_mode
Bram Moolenaar071d4272004-06-13 20:20:40 +00001563#endif
1564 && oap->line_count > 1
1565 && oap->op_type == OP_DELETE)
1566 {
1567 ptr = ml_get(oap->end.lnum) + oap->end.col + oap->inclusive;
1568 ptr = skipwhite(ptr);
1569 if (*ptr == NUL && inindent(0))
1570 oap->motion_type = MLINE;
1571 }
1572
1573/*
1574 * Check for trying to delete (e.g. "D") in an empty line.
1575 * Note: For the change operator it is ok.
1576 */
1577 if ( oap->motion_type == MCHAR
1578 && oap->line_count == 1
1579 && oap->op_type == OP_DELETE
1580 && *ml_get(oap->start.lnum) == NUL)
1581 {
1582 /*
1583 * It's an error to operate on an empty region, when 'E' inclucded in
1584 * 'cpoptions' (Vi compatible).
1585 */
1586 if (vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL)
1587 beep_flush();
1588 return OK;
1589 }
1590
1591/*
1592 * Do a yank of whatever we're about to delete.
1593 * If a yank register was specified, put the deleted text into that register.
1594 * For the black hole register '_' don't yank anything.
1595 */
1596 if (oap->regname != '_')
1597 {
1598 if (oap->regname != 0)
1599 {
1600 /* check for read-only register */
1601 if (!valid_yank_reg(oap->regname, TRUE))
1602 {
1603 beep_flush();
1604 return OK;
1605 }
1606 get_yank_register(oap->regname, TRUE); /* yank into specif'd reg. */
1607 if (op_yank(oap, TRUE, FALSE) == OK) /* yank without message */
1608 did_yank = TRUE;
1609 }
1610
1611 /*
1612 * Put deleted text into register 1 and shift number registers if the
1613 * delete contains a line break, or when a regname has been specified.
1614 */
1615 if (oap->regname != 0 || oap->motion_type == MLINE
1616 || oap->line_count > 1 || oap->use_reg_one)
1617 {
1618 y_current = &y_regs[9];
1619 free_yank_all(); /* free register nine */
1620 for (n = 9; n > 1; --n)
1621 y_regs[n] = y_regs[n - 1];
1622 y_previous = y_current = &y_regs[1];
1623 y_regs[1].y_array = NULL; /* set register one to empty */
1624 if (op_yank(oap, TRUE, FALSE) == OK)
1625 did_yank = TRUE;
1626 }
1627
1628 /* Yank into small delete register when no register specified and the
1629 * delete is within one line. */
1630 if (oap->regname == 0 && oap->motion_type != MLINE
1631 && oap->line_count == 1)
1632 {
1633 oap->regname = '-';
1634 get_yank_register(oap->regname, TRUE);
1635 if (op_yank(oap, TRUE, FALSE) == OK)
1636 did_yank = TRUE;
1637 oap->regname = 0;
1638 }
1639
1640 /*
1641 * If there's too much stuff to fit in the yank register, then get a
1642 * confirmation before doing the delete. This is crude, but simple.
1643 * And it avoids doing a delete of something we can't put back if we
1644 * want.
1645 */
1646 if (!did_yank)
1647 {
1648 int msg_silent_save = msg_silent;
1649
1650 msg_silent = 0; /* must display the prompt */
1651 n = ask_yesno((char_u *)_("cannot yank; delete anyway"), TRUE);
1652 msg_silent = msg_silent_save;
1653 if (n != 'y')
1654 {
1655 EMSG(_(e_abort));
1656 return FAIL;
1657 }
1658 }
1659 }
1660
1661#ifdef FEAT_VISUAL
1662/*
1663 * block mode delete
1664 */
1665 if (oap->block_mode)
1666 {
1667 if (u_save((linenr_T)(oap->start.lnum - 1),
1668 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1669 return FAIL;
1670
1671 for (lnum = curwin->w_cursor.lnum; lnum <= oap->end.lnum; ++lnum)
1672 {
1673 block_prep(oap, &bd, lnum, TRUE);
1674 if (bd.textlen == 0) /* nothing to delete */
1675 continue;
1676
1677 /* Adjust cursor position for tab replaced by spaces and 'lbr'. */
1678 if (lnum == curwin->w_cursor.lnum)
1679 {
1680 curwin->w_cursor.col = bd.textcol + bd.startspaces;
1681# ifdef FEAT_VIRTUALEDIT
1682 curwin->w_cursor.coladd = 0;
1683# endif
1684 }
1685
1686 /* n == number of chars deleted
1687 * If we delete a TAB, it may be replaced by several characters.
1688 * Thus the number of characters may increase!
1689 */
1690 n = bd.textlen - bd.startspaces - bd.endspaces;
1691 oldp = ml_get(lnum);
1692 newp = alloc_check((unsigned)STRLEN(oldp) + 1 - n);
1693 if (newp == NULL)
1694 continue;
1695 /* copy up to deleted part */
1696 mch_memmove(newp, oldp, (size_t)bd.textcol);
1697 /* insert spaces */
1698 copy_spaces(newp + bd.textcol,
1699 (size_t)(bd.startspaces + bd.endspaces));
1700 /* copy the part after the deleted part */
1701 oldp += bd.textcol + bd.textlen;
1702 mch_memmove(newp + bd.textcol + bd.startspaces + bd.endspaces,
1703 oldp, STRLEN(oldp) + 1);
1704 /* replace the line */
1705 ml_replace(lnum, newp, FALSE);
1706 }
1707
1708 check_cursor_col();
1709 changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col,
1710 oap->end.lnum + 1, 0L);
1711 oap->line_count = 0; /* no lines deleted */
1712 }
1713 else
1714#endif
1715 if (oap->motion_type == MLINE)
1716 {
1717 if (oap->op_type == OP_CHANGE)
1718 {
1719 /* Delete the lines except the first one. Temporarily move the
1720 * cursor to the next line. Save the current line number, if the
1721 * last line is deleted it may be changed.
1722 */
1723 if (oap->line_count > 1)
1724 {
1725 lnum = curwin->w_cursor.lnum;
1726 ++curwin->w_cursor.lnum;
1727 del_lines((long)(oap->line_count - 1), TRUE);
1728 curwin->w_cursor.lnum = lnum;
1729 }
1730 if (u_save_cursor() == FAIL)
1731 return FAIL;
1732 if (curbuf->b_p_ai) /* don't delete indent */
1733 {
1734 beginline(BL_WHITE); /* cursor on first non-white */
1735 did_ai = TRUE; /* delete the indent when ESC hit */
1736 ai_col = curwin->w_cursor.col;
1737 }
1738 else
1739 beginline(0); /* cursor in column 0 */
1740 truncate_line(FALSE); /* delete the rest of the line */
1741 /* leave cursor past last char in line */
1742 if (oap->line_count > 1)
1743 u_clearline(); /* "U" command not possible after "2cc" */
1744 }
1745 else
1746 {
1747 del_lines(oap->line_count, TRUE);
1748 beginline(BL_WHITE | BL_FIX);
1749 u_clearline(); /* "U" command not possible after "dd" */
1750 }
1751 }
1752 else
1753 {
1754#ifdef FEAT_VIRTUALEDIT
1755 if (virtual_op)
1756 {
1757 int endcol = 0;
1758
1759 /* For virtualedit: break the tabs that are partly included. */
1760 if (gchar_pos(&oap->start) == '\t')
1761 {
1762 if (u_save_cursor() == FAIL) /* save first line for undo */
1763 return FAIL;
1764 if (oap->line_count == 1)
1765 endcol = getviscol2(oap->end.col, oap->end.coladd);
1766 coladvance_force(getviscol2(oap->start.col, oap->start.coladd));
1767 oap->start = curwin->w_cursor;
1768 if (oap->line_count == 1)
1769 {
1770 coladvance(endcol);
1771 oap->end.col = curwin->w_cursor.col;
1772 oap->end.coladd = curwin->w_cursor.coladd;
1773 curwin->w_cursor = oap->start;
1774 }
1775 }
1776
1777 /* Break a tab only when it's included in the area. */
1778 if (gchar_pos(&oap->end) == '\t'
1779 && (int)oap->end.coladd < oap->inclusive)
1780 {
1781 /* save last line for undo */
1782 if (u_save((linenr_T)(oap->end.lnum - 1),
1783 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1784 return FAIL;
1785 curwin->w_cursor = oap->end;
1786 coladvance_force(getviscol2(oap->end.col, oap->end.coladd));
1787 oap->end = curwin->w_cursor;
1788 curwin->w_cursor = oap->start;
1789 }
1790 }
1791#endif
1792
1793 if (oap->line_count == 1) /* delete characters within one line */
1794 {
1795 if (u_save_cursor() == FAIL) /* save line for undo */
1796 return FAIL;
1797
1798 /* if 'cpoptions' contains '$', display '$' at end of change */
1799 if ( vim_strchr(p_cpo, CPO_DOLLAR) != NULL
1800 && oap->op_type == OP_CHANGE
1801 && oap->end.lnum == curwin->w_cursor.lnum
1802#ifdef FEAT_VISUAL
1803 && !oap->is_VIsual
1804#endif
1805 )
1806 display_dollar(oap->end.col - !oap->inclusive);
1807
1808 n = oap->end.col - oap->start.col + 1 - !oap->inclusive;
1809
1810#ifdef FEAT_VIRTUALEDIT
1811 if (virtual_op)
1812 {
1813 /* fix up things for virtualedit-delete:
1814 * break the tabs which are going to get in our way
1815 */
1816 char_u *curline = ml_get_curline();
1817 int len = (int)STRLEN(curline);
1818
1819 if (oap->end.coladd != 0
1820 && (int)oap->end.col >= len - 1
1821 && !(oap->start.coladd && (int)oap->end.col >= len - 1))
1822 n++;
1823 /* Delete at least one char (e.g, when on a control char). */
1824 if (n == 0 && oap->start.coladd != oap->end.coladd)
1825 n = 1;
1826
1827 /* When deleted a char in the line, reset coladd. */
1828 if (gchar_cursor() != NUL)
1829 curwin->w_cursor.coladd = 0;
1830 }
1831#endif
1832 (void)del_bytes((long)n, restart_edit == NUL && !virtual_op);
1833 }
1834 else /* delete characters between lines */
1835 {
1836 pos_T curpos;
1837
1838 /* save deleted and changed lines for undo */
1839 if (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
1840 (linenr_T)(curwin->w_cursor.lnum + oap->line_count)) == FAIL)
1841 return FAIL;
1842
1843 truncate_line(TRUE); /* delete from cursor to end of line */
1844
1845 curpos = curwin->w_cursor; /* remember curwin->w_cursor */
1846 ++curwin->w_cursor.lnum;
1847 del_lines((long)(oap->line_count - 2), FALSE);
1848
1849 /* delete from start of line until op_end */
1850 curwin->w_cursor.col = 0;
1851 (void)del_bytes((long)(oap->end.col + 1 - !oap->inclusive),
1852 restart_edit == NUL && !virtual_op);
1853 curwin->w_cursor = curpos; /* restore curwin->w_cursor */
1854
1855 (void)do_join(FALSE);
1856 }
1857 }
1858
1859 msgmore(curbuf->b_ml.ml_line_count - old_lcount);
1860
1861#ifdef FEAT_VISUAL
1862 if (oap->block_mode)
1863 {
1864 curbuf->b_op_end.lnum = oap->end.lnum;
1865 curbuf->b_op_end.col = oap->start.col;
1866 }
1867 else
1868#endif
1869 curbuf->b_op_end = oap->start;
1870 curbuf->b_op_start = oap->start;
1871
1872 return OK;
1873}
1874
1875#ifdef FEAT_MBYTE
1876/*
1877 * Adjust end of operating area for ending on a multi-byte character.
1878 * Used for deletion.
1879 */
1880 static void
1881mb_adjust_opend(oap)
1882 oparg_T *oap;
1883{
1884 char_u *p;
1885
1886 if (oap->inclusive)
1887 {
1888 p = ml_get(oap->end.lnum);
1889 oap->end.col += mb_tail_off(p, p + oap->end.col);
1890 }
1891}
1892#endif
1893
1894#if defined(FEAT_VISUALEXTRA) || defined(PROTO)
1895/*
1896 * Replace a whole area with one character.
1897 */
1898 int
1899op_replace(oap, c)
1900 oparg_T *oap;
1901 int c;
1902{
1903 int n, numc;
1904#ifdef FEAT_MBYTE
1905 int num_chars;
1906#endif
1907 char_u *newp, *oldp;
1908 size_t oldlen;
1909 struct block_def bd;
1910
1911 if ((curbuf->b_ml.ml_flags & ML_EMPTY ) || oap->empty)
1912 return OK; /* nothing to do */
1913
1914#ifdef FEAT_MBYTE
1915 if (has_mbyte)
1916 mb_adjust_opend(oap);
1917#endif
1918
1919 if (u_save((linenr_T)(oap->start.lnum - 1),
1920 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1921 return FAIL;
1922
1923 /*
1924 * block mode replace
1925 */
1926 if (oap->block_mode)
1927 {
1928 bd.is_MAX = (curwin->w_curswant == MAXCOL);
1929 for ( ; curwin->w_cursor.lnum <= oap->end.lnum; ++curwin->w_cursor.lnum)
1930 {
1931 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE);
1932 if (bd.textlen == 0 && (!virtual_op || bd.is_MAX))
1933 continue; /* nothing to replace */
1934
1935 /* n == number of extra chars required
1936 * If we split a TAB, it may be replaced by several characters.
1937 * Thus the number of characters may increase!
1938 */
1939#ifdef FEAT_VIRTUALEDIT
1940 /* If the range starts in virtual space, count the initial
1941 * coladd offset as part of "startspaces" */
1942 if (virtual_op && bd.is_short && *bd.textstart == NUL)
1943 {
1944 pos_T vpos;
1945
1946 getvpos(&vpos, oap->start_vcol);
1947 bd.startspaces += vpos.coladd;
1948 n = bd.startspaces;
1949 }
1950 else
1951#endif
1952 /* allow for pre spaces */
1953 n = (bd.startspaces ? bd.start_char_vcols - 1 : 0);
1954
1955 /* allow for post spp */
1956 n += (bd.endspaces
1957#ifdef FEAT_VIRTUALEDIT
1958 && !bd.is_oneChar
1959#endif
1960 && bd.end_char_vcols > 0) ? bd.end_char_vcols - 1 : 0;
1961 /* Figure out how many characters to replace. */
1962 numc = oap->end_vcol - oap->start_vcol + 1;
1963 if (bd.is_short && (!virtual_op || bd.is_MAX))
1964 numc -= (oap->end_vcol - bd.end_vcol) + 1;
1965
1966#ifdef FEAT_MBYTE
1967 /* A double-wide character can be replaced only up to half the
1968 * times. */
1969 if ((*mb_char2cells)(c) > 1)
1970 {
1971 if ((numc & 1) && !bd.is_short)
1972 {
1973 ++bd.endspaces;
1974 ++n;
1975 }
1976 numc = numc / 2;
1977 }
1978
1979 /* Compute bytes needed, move character count to num_chars. */
1980 num_chars = numc;
1981 numc *= (*mb_char2len)(c);
1982#endif
1983 /* oldlen includes textlen, so don't double count */
1984 n += numc - bd.textlen;
1985
1986 oldp = ml_get_curline();
1987 oldlen = STRLEN(oldp);
1988 newp = alloc_check((unsigned)oldlen + 1 + n);
1989 if (newp == NULL)
1990 continue;
1991 vim_memset(newp, NUL, (size_t)(oldlen + 1 + n));
1992 /* copy up to deleted part */
1993 mch_memmove(newp, oldp, (size_t)bd.textcol);
1994 oldp += bd.textcol + bd.textlen;
1995 /* insert pre-spaces */
1996 copy_spaces(newp + bd.textcol, (size_t)bd.startspaces);
1997 /* insert replacement chars CHECK FOR ALLOCATED SPACE */
1998#ifdef FEAT_MBYTE
1999 if (has_mbyte)
2000 {
2001 n = STRLEN(newp);
2002 while (--num_chars >= 0)
2003 n += (*mb_char2bytes)(c, newp + n);
2004 }
2005 else
2006#endif
2007 copy_chars(newp + STRLEN(newp), (size_t)numc, c);
2008 if (!bd.is_short)
2009 {
2010 /* insert post-spaces */
2011 copy_spaces(newp + STRLEN(newp), (size_t)bd.endspaces);
2012 /* copy the part after the changed part */
2013 mch_memmove(newp + STRLEN(newp), oldp, STRLEN(oldp) + 1);
2014 }
2015 /* replace the line */
2016 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
2017 }
2018 }
2019 else
2020 {
2021 /*
2022 * MCHAR and MLINE motion replace.
2023 */
2024 if (oap->motion_type == MLINE)
2025 {
2026 oap->start.col = 0;
2027 curwin->w_cursor.col = 0;
2028 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
2029 if (oap->end.col)
2030 --oap->end.col;
2031 }
2032 else if (!oap->inclusive)
2033 dec(&(oap->end));
2034
2035 while (ltoreq(curwin->w_cursor, oap->end))
2036 {
2037 n = gchar_cursor();
2038 if (n != NUL)
2039 {
2040#ifdef FEAT_MBYTE
2041 if ((*mb_char2len)(c) > 1 || (*mb_char2len)(n) > 1)
2042 {
2043 /* This is slow, but it handles replacing a single-byte
2044 * with a multi-byte and the other way around. */
2045 oap->end.col += (*mb_char2len)(c) - (*mb_char2len)(n);
2046 n = State;
2047 State = REPLACE;
2048 ins_char(c);
2049 State = n;
2050 /* Backup to the replaced character. */
2051 dec_cursor();
2052 }
2053 else
2054#endif
2055 {
2056#ifdef FEAT_VIRTUALEDIT
2057 if (n == TAB)
2058 {
2059 int end_vcol = 0;
2060
2061 if (curwin->w_cursor.lnum == oap->end.lnum)
2062 {
2063 /* oap->end has to be recalculated when
2064 * the tab breaks */
2065 end_vcol = getviscol2(oap->end.col,
2066 oap->end.coladd);
2067 }
2068 coladvance_force(getviscol());
2069 if (curwin->w_cursor.lnum == oap->end.lnum)
2070 getvpos(&oap->end, end_vcol);
2071 }
2072#endif
2073 pchar(curwin->w_cursor, c);
2074 }
2075 }
2076#ifdef FEAT_VIRTUALEDIT
2077 else if (virtual_op && curwin->w_cursor.lnum == oap->end.lnum)
2078 {
2079 int virtcols = oap->end.coladd;
2080
2081 if (curwin->w_cursor.lnum == oap->start.lnum
2082 && oap->start.col == oap->end.col && oap->start.coladd)
2083 virtcols -= oap->start.coladd;
2084
2085 /* oap->end has been trimmed so it's effectively inclusive;
2086 * as a result an extra +1 must be counted so we don't
2087 * trample the NUL byte. */
2088 coladvance_force(getviscol2(oap->end.col, oap->end.coladd) + 1);
2089 curwin->w_cursor.col -= (virtcols + 1);
2090 for (; virtcols >= 0; virtcols--)
2091 {
2092 pchar(curwin->w_cursor, c);
2093 if (inc(&curwin->w_cursor) == -1)
2094 break;
2095 }
2096 }
2097#endif
2098
2099 /* Advance to next character, stop at the end of the file. */
2100 if (inc_cursor() == -1)
2101 break;
2102 }
2103 }
2104
2105 curwin->w_cursor = oap->start;
2106 check_cursor();
2107 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1, 0L);
2108
2109 /* Set "'[" and "']" marks. */
2110 curbuf->b_op_start = oap->start;
2111 curbuf->b_op_end = oap->end;
2112
2113 return OK;
2114}
2115#endif
2116
2117/*
2118 * Handle the (non-standard vi) tilde operator. Also for "gu", "gU" and "g?".
2119 */
2120 void
2121op_tilde(oap)
2122 oparg_T *oap;
2123{
2124 pos_T pos;
2125#ifdef FEAT_VISUAL
2126 struct block_def bd;
2127 int done;
2128#endif
2129 int did_change = 0;
2130#ifdef FEAT_MBYTE
2131 colnr_T col;
2132#endif
2133
2134 if (u_save((linenr_T)(oap->start.lnum - 1),
2135 (linenr_T)(oap->end.lnum + 1)) == FAIL)
2136 return;
2137
2138 pos = oap->start;
2139#ifdef FEAT_VISUAL
2140 if (oap->block_mode) /* Visual block mode */
2141 {
2142 for (; pos.lnum <= oap->end.lnum; ++pos.lnum)
2143 {
2144 block_prep(oap, &bd, pos.lnum, FALSE);
2145 pos.col = bd.textcol;
2146 for (done = 0; done < bd.textlen; ++done)
2147 {
2148 did_change |= swapchar(oap->op_type, &pos);
2149# ifdef FEAT_MBYTE
2150 col = pos.col + 1;
2151# endif
2152 if (inc(&pos) == -1) /* at end of file */
2153 break;
2154# ifdef FEAT_MBYTE
2155 if (pos.col > col)
2156 /* Count extra bytes of a multi-byte character. */
2157 done += pos.col - col;
2158# endif
2159 }
2160# ifdef FEAT_NETBEANS_INTG
2161 if (usingNetbeans && did_change)
2162 {
2163 char_u *ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2164
Bram Moolenaar009b2592004-10-24 19:18:58 +00002165 netbeans_removed(curbuf, pos.lnum, bd.textcol,
2166 (long)bd.textlen);
Bram Moolenaar071d4272004-06-13 20:20:40 +00002167 netbeans_inserted(curbuf, pos.lnum, bd.textcol,
Bram Moolenaar009b2592004-10-24 19:18:58 +00002168 &ptr[bd.textcol], bd.textlen);
Bram Moolenaar071d4272004-06-13 20:20:40 +00002169 }
2170# endif
2171 }
2172 if (did_change)
2173 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L);
2174 }
2175 else /* not block mode */
2176#endif
2177 {
2178 if (oap->motion_type == MLINE)
2179 {
2180 oap->start.col = 0;
2181 pos.col = 0;
2182 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
2183 if (oap->end.col)
2184 --oap->end.col;
2185 }
2186 else if (!oap->inclusive)
2187 dec(&(oap->end));
2188
2189 while (ltoreq(pos, oap->end))
2190 {
2191 did_change |= swapchar(oap->op_type, &pos);
2192 if (inc(&pos) == -1) /* at end of file */
2193 break;
2194 }
2195 if (did_change)
2196 {
2197 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1,
2198 0L);
2199#ifdef FEAT_NETBEANS_INTG
2200 if (usingNetbeans && did_change)
2201 {
2202 char_u *ptr;
2203 int count;
2204
2205 pos = oap->start;
2206 while (pos.lnum < oap->end.lnum)
2207 {
2208 ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2209 count = STRLEN(ptr) - pos.col;
Bram Moolenaar009b2592004-10-24 19:18:58 +00002210 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
Bram Moolenaar071d4272004-06-13 20:20:40 +00002211 netbeans_inserted(curbuf, pos.lnum, pos.col,
Bram Moolenaar009b2592004-10-24 19:18:58 +00002212 &ptr[pos.col], count);
Bram Moolenaar071d4272004-06-13 20:20:40 +00002213 pos.col = 0;
2214 pos.lnum++;
2215 }
2216 ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2217 count = oap->end.col - pos.col + 1;
Bram Moolenaar009b2592004-10-24 19:18:58 +00002218 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
Bram Moolenaar071d4272004-06-13 20:20:40 +00002219 netbeans_inserted(curbuf, pos.lnum, pos.col,
Bram Moolenaar009b2592004-10-24 19:18:58 +00002220 &ptr[pos.col], count);
Bram Moolenaar071d4272004-06-13 20:20:40 +00002221 }
2222#endif
2223 }
2224 }
2225
2226#ifdef FEAT_VISUAL
2227 if (!did_change && oap->is_VIsual)
2228 /* No change: need to remove the Visual selection */
2229 redraw_curbuf_later(INVERTED);
2230#endif
2231
2232 /*
2233 * Set '[ and '] marks.
2234 */
2235 curbuf->b_op_start = oap->start;
2236 curbuf->b_op_end = oap->end;
2237
2238 if (oap->line_count > p_report)
2239 {
2240 if (oap->line_count == 1)
2241 MSG(_("1 line changed"));
2242 else
2243 smsg((char_u *)_("%ld lines changed"), oap->line_count);
2244 }
2245}
2246
2247/*
2248 * If op_type == OP_UPPER: make uppercase,
2249 * if op_type == OP_LOWER: make lowercase,
2250 * if op_type == OP_ROT13: do rot13 encoding,
2251 * else swap case of character at 'pos'
2252 * returns TRUE when something actually changed.
2253 */
2254 int
2255swapchar(op_type, pos)
2256 int op_type;
2257 pos_T *pos;
2258{
2259 int c;
2260 int nc;
2261
2262 c = gchar_pos(pos);
2263
2264 /* Only do rot13 encoding for ASCII characters. */
2265 if (c >= 0x80 && op_type == OP_ROT13)
2266 return FALSE;
2267
2268#ifdef FEAT_MBYTE
2269 if (enc_dbcs != 0 && c >= 0x100) /* No lower/uppercase letter */
2270 return FALSE;
2271#endif
2272 nc = c;
2273 if (MB_ISLOWER(c))
2274 {
2275 if (op_type == OP_ROT13)
2276 nc = ROT13(c, 'a');
2277 else if (op_type != OP_LOWER)
2278 nc = MB_TOUPPER(c);
2279 }
2280 else if (MB_ISUPPER(c))
2281 {
2282 if (op_type == OP_ROT13)
2283 nc = ROT13(c, 'A');
2284 else if (op_type != OP_UPPER)
2285 nc = MB_TOLOWER(c);
2286 }
2287 if (nc != c)
2288 {
2289#ifdef FEAT_MBYTE
2290 if (enc_utf8 && (c >= 0x80 || nc >= 0x80))
2291 {
2292 pos_T sp = curwin->w_cursor;
2293
2294 curwin->w_cursor = *pos;
2295 del_char(FALSE);
2296 ins_char(nc);
2297 curwin->w_cursor = sp;
2298 }
2299 else
2300#endif
2301 pchar(*pos, nc);
2302 return TRUE;
2303 }
2304 return FALSE;
2305}
2306
2307#if defined(FEAT_VISUALEXTRA) || defined(PROTO)
2308/*
2309 * op_insert - Insert and append operators for Visual mode.
2310 */
2311 void
2312op_insert(oap, count1)
2313 oparg_T *oap;
2314 long count1;
2315{
2316 long ins_len, pre_textlen = 0;
2317 char_u *firstline, *ins_text;
2318 struct block_def bd;
2319 int i;
2320
2321 /* edit() changes this - record it for OP_APPEND */
2322 bd.is_MAX = (curwin->w_curswant == MAXCOL);
2323
2324 /* vis block is still marked. Get rid of it now. */
2325 curwin->w_cursor.lnum = oap->start.lnum;
2326 update_screen(INVERTED);
2327
2328 if (oap->block_mode)
2329 {
2330#ifdef FEAT_VIRTUALEDIT
2331 /* When 'virtualedit' is used, need to insert the extra spaces before
2332 * doing block_prep(). When only "block" is used, virtual edit is
2333 * already disabled, but still need it when calling
2334 * coladvance_force(). */
2335 if (curwin->w_cursor.coladd > 0)
2336 {
2337 int old_ve_flags = ve_flags;
2338
2339 ve_flags = VE_ALL;
2340 if (u_save_cursor() == FAIL)
2341 return;
2342 coladvance_force(oap->op_type == OP_APPEND
2343 ? oap->end_vcol + 1 : getviscol());
2344 if (oap->op_type == OP_APPEND)
2345 --curwin->w_cursor.col;
2346 ve_flags = old_ve_flags;
2347 }
2348#endif
2349 /* Get the info about the block before entering the text */
2350 block_prep(oap, &bd, oap->start.lnum, TRUE);
2351 firstline = ml_get(oap->start.lnum) + bd.textcol;
2352 if (oap->op_type == OP_APPEND)
2353 firstline += bd.textlen;
2354 pre_textlen = (long)STRLEN(firstline);
2355 }
2356
2357 if (oap->op_type == OP_APPEND)
2358 {
2359 if (oap->block_mode
2360#ifdef FEAT_VIRTUALEDIT
2361 && curwin->w_cursor.coladd == 0
2362#endif
2363 )
2364 {
2365 /* Move the cursor to the character right of the block. */
2366 curwin->w_set_curswant = TRUE;
2367 while (*ml_get_cursor() != NUL
2368 && (curwin->w_cursor.col < bd.textcol + bd.textlen))
2369 ++curwin->w_cursor.col;
2370 if (bd.is_short && !bd.is_MAX)
2371 {
2372 /* First line was too short, make it longer and adjust the
2373 * values in "bd". */
2374 if (u_save_cursor() == FAIL)
2375 return;
2376 for (i = 0; i < bd.endspaces; ++i)
2377 ins_char(' ');
2378 bd.textlen += bd.endspaces;
2379 }
2380 }
2381 else
2382 {
2383 curwin->w_cursor = oap->end;
2384
2385 /* Works just like an 'i'nsert on the next character. */
2386 if (!lineempty(curwin->w_cursor.lnum)
2387 && oap->start_vcol != oap->end_vcol)
2388 inc_cursor();
2389 }
2390 }
2391
2392 edit(NUL, FALSE, (linenr_T)count1);
2393
2394 /* if user has moved off this line, we don't know what to do, so do
2395 * nothing */
2396 if (curwin->w_cursor.lnum != oap->start.lnum)
2397 return;
2398
2399 if (oap->block_mode)
2400 {
2401 struct block_def bd2;
2402
2403 /*
2404 * Spaces and tabs in the indent may have changed to other spaces and
2405 * tabs. Get the starting column again and correct the lenght.
2406 * Don't do this when "$" used, end-of-line will have changed.
2407 */
2408 block_prep(oap, &bd2, oap->start.lnum, TRUE);
2409 if (!bd.is_MAX || bd2.textlen < bd.textlen)
2410 {
2411 if (oap->op_type == OP_APPEND)
2412 {
2413 pre_textlen += bd2.textlen - bd.textlen;
2414 if (bd2.endspaces)
2415 --bd2.textlen;
2416 }
2417 bd.textcol = bd2.textcol;
2418 bd.textlen = bd2.textlen;
2419 }
2420
2421 /*
2422 * Subsequent calls to ml_get() flush the firstline data - take a
2423 * copy of the required string.
2424 */
2425 firstline = ml_get(oap->start.lnum) + bd.textcol;
2426 if (oap->op_type == OP_APPEND)
2427 firstline += bd.textlen;
2428 if ((ins_len = (long)STRLEN(firstline) - pre_textlen) > 0)
2429 {
2430 ins_text = vim_strnsave(firstline, (int)ins_len);
2431 if (ins_text != NULL)
2432 {
2433 /* block handled here */
2434 if (u_save(oap->start.lnum,
2435 (linenr_T)(oap->end.lnum + 1)) == OK)
2436 block_insert(oap, ins_text, (oap->op_type == OP_INSERT),
2437 &bd);
2438
2439 curwin->w_cursor.col = oap->start.col;
2440 check_cursor();
2441 vim_free(ins_text);
2442 }
2443 }
2444 }
2445}
2446#endif
2447
2448/*
2449 * op_change - handle a change operation
2450 *
2451 * return TRUE if edit() returns because of a CTRL-O command
2452 */
2453 int
2454op_change(oap)
2455 oparg_T *oap;
2456{
2457 colnr_T l;
2458 int retval;
2459#ifdef FEAT_VISUALEXTRA
2460 long offset;
2461 linenr_T linenr;
2462 long ins_len, pre_textlen = 0;
2463 char_u *firstline;
2464 char_u *ins_text, *newp, *oldp;
2465 struct block_def bd;
2466#endif
2467
2468 l = oap->start.col;
2469 if (oap->motion_type == MLINE)
2470 {
2471 l = 0;
2472#ifdef FEAT_SMARTINDENT
2473 if (!p_paste && curbuf->b_p_si
2474# ifdef FEAT_CINDENT
2475 && !curbuf->b_p_cin
2476# endif
2477 )
2478 can_si = TRUE; /* It's like opening a new line, do si */
2479#endif
2480 }
2481
2482 /* First delete the text in the region. In an empty buffer only need to
2483 * save for undo */
2484 if (curbuf->b_ml.ml_flags & ML_EMPTY)
2485 {
2486 if (u_save_cursor() == FAIL)
2487 return FALSE;
2488 }
2489 else if (op_delete(oap) == FAIL)
2490 return FALSE;
2491
2492 if ((l > curwin->w_cursor.col) && !lineempty(curwin->w_cursor.lnum)
2493 && !virtual_op)
2494 inc_cursor();
2495
2496#ifdef FEAT_VISUALEXTRA
2497 /* check for still on same line (<CR> in inserted text meaningless) */
2498 /* skip blank lines too */
2499 if (oap->block_mode)
2500 {
2501# ifdef FEAT_VIRTUALEDIT
2502 /* Add spaces before getting the current line length. */
2503 if (virtual_op && (curwin->w_cursor.coladd > 0
2504 || gchar_cursor() == NUL))
2505 coladvance_force(getviscol());
2506# endif
2507 pre_textlen = (long)STRLEN(ml_get(oap->start.lnum));
2508 bd.textcol = curwin->w_cursor.col;
2509 }
2510#endif
2511
2512#if defined(FEAT_LISP) || defined(FEAT_CINDENT)
2513 if (oap->motion_type == MLINE)
2514 fix_indent();
2515#endif
2516
2517 retval = edit(NUL, FALSE, (linenr_T)1);
2518
2519#ifdef FEAT_VISUALEXTRA
2520 /*
Bram Moolenaar1cd871b2004-12-19 22:46:22 +00002521 * In Visual block mode, handle copying the new text to all lines of the
Bram Moolenaar071d4272004-06-13 20:20:40 +00002522 * block.
2523 */
2524 if (oap->block_mode && oap->start.lnum != oap->end.lnum)
2525 {
2526 firstline = ml_get(oap->start.lnum);
2527 /*
2528 * Subsequent calls to ml_get() flush the firstline data - take a
2529 * copy of the required bit.
2530 */
2531 if ((ins_len = (long)STRLEN(firstline) - pre_textlen) > 0)
2532 {
2533 if ((ins_text = alloc_check((unsigned)(ins_len + 1))) != NULL)
2534 {
2535 STRNCPY(ins_text, firstline + bd.textcol, ins_len);
2536 ins_text[ins_len] = NUL;
2537 for (linenr = oap->start.lnum + 1; linenr <= oap->end.lnum;
2538 linenr++)
2539 {
2540 block_prep(oap, &bd, linenr, TRUE);
2541 if (!bd.is_short || virtual_op)
2542 {
2543# ifdef FEAT_VIRTUALEDIT
2544 pos_T vpos;
2545
2546 /* If the block starts in virtual space, count the
2547 * initial coladd offset as part of "startspaces" */
2548 if (bd.is_short)
2549 {
2550 linenr_T lnum = curwin->w_cursor.lnum;
2551
2552 curwin->w_cursor.lnum = linenr;
2553 (void)getvpos(&vpos, oap->start_vcol);
2554 curwin->w_cursor.lnum = lnum;
2555 }
2556 else
2557 vpos.coladd = 0;
2558# endif
2559 oldp = ml_get(linenr);
2560 newp = alloc_check((unsigned)(STRLEN(oldp)
2561# ifdef FEAT_VIRTUALEDIT
2562 + vpos.coladd
2563# endif
2564 + ins_len + 1));
2565 if (newp == NULL)
2566 continue;
2567 /* copy up to block start */
2568 mch_memmove(newp, oldp, (size_t)bd.textcol);
2569 offset = bd.textcol;
2570# ifdef FEAT_VIRTUALEDIT
2571 copy_spaces(newp + offset, (size_t)vpos.coladd);
2572 offset += vpos.coladd;
2573# endif
2574 mch_memmove(newp + offset, ins_text, (size_t)ins_len);
2575 offset += ins_len;
2576 oldp += bd.textcol;
2577 mch_memmove(newp + offset, oldp, STRLEN(oldp) + 1);
2578 ml_replace(linenr, newp, FALSE);
2579 }
2580 }
2581 check_cursor();
2582
2583 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L);
2584 }
2585 vim_free(ins_text);
2586 }
2587 }
2588#endif
2589
2590 return retval;
2591}
2592
2593/*
2594 * set all the yank registers to empty (called from main())
2595 */
2596 void
2597init_yank()
2598{
2599 int i;
2600
2601 for (i = 0; i < NUM_REGISTERS; ++i)
2602 y_regs[i].y_array = NULL;
2603}
2604
Bram Moolenaar1ec484f2005-06-24 23:07:47 +00002605#if defined(EXITFREE) || defined(PROTO)
2606 void
2607clear_registers()
2608{
2609 int i;
2610
2611 for (i = 0; i < NUM_REGISTERS; ++i)
2612 {
2613 y_current = &y_regs[i];
2614 if (y_current->y_array != NULL)
2615 free_yank_all();
2616 }
2617}
2618#endif
2619
Bram Moolenaar071d4272004-06-13 20:20:40 +00002620/*
2621 * Free "n" lines from the current yank register.
2622 * Called for normal freeing and in case of error.
2623 */
2624 static void
2625free_yank(n)
2626 long n;
2627{
2628 if (y_current->y_array != NULL)
2629 {
2630 long i;
2631
2632 for (i = n; --i >= 0; )
2633 {
2634#ifdef AMIGA /* only for very slow machines */
2635 if ((i & 1023) == 1023) /* this may take a while */
2636 {
2637 /*
2638 * This message should never cause a hit-return message.
2639 * Overwrite this message with any next message.
2640 */
2641 ++no_wait_return;
2642 smsg((char_u *)_("freeing %ld lines"), i + 1);
2643 --no_wait_return;
2644 msg_didout = FALSE;
2645 msg_col = 0;
2646 }
2647#endif
2648 vim_free(y_current->y_array[i]);
2649 }
2650 vim_free(y_current->y_array);
2651 y_current->y_array = NULL;
2652#ifdef AMIGA
2653 if (n >= 1000)
2654 MSG("");
2655#endif
2656 }
2657}
2658
2659 static void
2660free_yank_all()
2661{
2662 free_yank(y_current->y_size);
2663}
2664
2665/*
2666 * Yank the text between "oap->start" and "oap->end" into a yank register.
2667 * If we are to append (uppercase register), we first yank into a new yank
2668 * register and then concatenate the old and the new one (so we keep the old
2669 * one in case of out-of-memory).
2670 *
2671 * return FAIL for failure, OK otherwise
2672 */
2673 int
2674op_yank(oap, deleting, mess)
2675 oparg_T *oap;
2676 int deleting;
2677 int mess;
2678{
2679 long y_idx; /* index in y_array[] */
2680 struct yankreg *curr; /* copy of y_current */
2681 struct yankreg newreg; /* new yank register when appending */
2682 char_u **new_ptr;
2683 linenr_T lnum; /* current line number */
2684 long j;
2685 int yanktype = oap->motion_type;
2686 long yanklines = oap->line_count;
2687 linenr_T yankendlnum = oap->end.lnum;
2688 char_u *p;
2689 char_u *pnew;
2690 struct block_def bd;
2691
2692 /* check for read-only register */
2693 if (oap->regname != 0 && !valid_yank_reg(oap->regname, TRUE))
2694 {
2695 beep_flush();
2696 return FAIL;
2697 }
2698 if (oap->regname == '_') /* black hole: nothing to do */
2699 return OK;
2700
2701#ifdef FEAT_CLIPBOARD
2702 if (!clip_star.available && oap->regname == '*')
2703 oap->regname = 0;
2704 else if (!clip_plus.available && oap->regname == '+')
2705 oap->regname = 0;
2706#endif
2707
2708 if (!deleting) /* op_delete() already set y_current */
2709 get_yank_register(oap->regname, TRUE);
2710
2711 curr = y_current;
2712 /* append to existing contents */
2713 if (y_append && y_current->y_array != NULL)
2714 y_current = &newreg;
2715 else
2716 free_yank_all(); /* free previously yanked lines */
2717
2718/*
2719 * If the cursor was in column 1 before and after the movement, and the
2720 * operator is not inclusive, the yank is always linewise.
2721 */
2722 if ( oap->motion_type == MCHAR
2723 && oap->start.col == 0
2724 && !oap->inclusive
2725#ifdef FEAT_VISUAL
2726 && (!oap->is_VIsual || *p_sel == 'o')
Bram Moolenaarec2dad62005-01-02 11:36:03 +00002727 && !oap->block_mode
Bram Moolenaar071d4272004-06-13 20:20:40 +00002728#endif
2729 && oap->end.col == 0
2730 && yanklines > 1)
2731 {
2732 yanktype = MLINE;
2733 --yankendlnum;
2734 --yanklines;
2735 }
2736
2737 y_current->y_size = yanklines;
2738 y_current->y_type = yanktype; /* set the yank register type */
2739#ifdef FEAT_VISUAL
2740 y_current->y_width = 0;
2741#endif
2742 y_current->y_array = (char_u **)lalloc_clear((long_u)(sizeof(char_u *) *
2743 yanklines), TRUE);
2744
2745 if (y_current->y_array == NULL)
2746 {
2747 y_current = curr;
2748 return FAIL;
2749 }
2750
2751 y_idx = 0;
2752 lnum = oap->start.lnum;
2753
2754#ifdef FEAT_VISUAL
2755 if (oap->block_mode)
2756 {
2757 /* Visual block mode */
2758 y_current->y_type = MBLOCK; /* set the yank register type */
2759 y_current->y_width = oap->end_vcol - oap->start_vcol;
2760
2761 if (curwin->w_curswant == MAXCOL && y_current->y_width > 0)
2762 y_current->y_width--;
2763 }
2764#endif
2765
2766 for ( ; lnum <= yankendlnum; lnum++, y_idx++)
2767 {
2768 switch (y_current->y_type)
2769 {
2770#ifdef FEAT_VISUAL
2771 case MBLOCK:
2772 block_prep(oap, &bd, lnum, FALSE);
2773 if (yank_copy_line(&bd, y_idx) == FAIL)
2774 goto fail;
2775 break;
2776#endif
2777
2778 case MLINE:
2779 if ((y_current->y_array[y_idx] =
2780 vim_strsave(ml_get(lnum))) == NULL)
2781 goto fail;
2782 break;
2783
2784 case MCHAR:
2785 {
2786 colnr_T startcol = 0, endcol = MAXCOL;
2787#ifdef FEAT_VIRTUALEDIT
2788 int is_oneChar = FALSE;
2789 colnr_T cs, ce;
2790#endif
2791 p = ml_get(lnum);
2792 bd.startspaces = 0;
2793 bd.endspaces = 0;
2794
2795 if (lnum == oap->start.lnum)
2796 {
2797 startcol = oap->start.col;
2798#ifdef FEAT_VIRTUALEDIT
2799 if (virtual_op)
2800 {
2801 getvcol(curwin, &oap->start, &cs, NULL, &ce);
2802 if (ce != cs && oap->start.coladd > 0)
2803 {
2804 /* Part of a tab selected -- but don't
2805 * double-count it. */
2806 bd.startspaces = (ce - cs + 1)
2807 - oap->start.coladd;
2808 startcol++;
2809 }
2810 }
2811#endif
2812 }
2813
2814 if (lnum == oap->end.lnum)
2815 {
2816 endcol = oap->end.col;
2817#ifdef FEAT_VIRTUALEDIT
2818 if (virtual_op)
2819 {
2820 getvcol(curwin, &oap->end, &cs, NULL, &ce);
2821 if (p[endcol] == NUL || (cs + oap->end.coladd < ce
2822# ifdef FEAT_MBYTE
2823 /* Don't add space for double-wide
2824 * char; endcol will be on last byte
2825 * of multi-byte char. */
2826 && (*mb_head_off)(p, p + endcol) == 0
2827# endif
2828 ))
2829 {
2830 if (oap->start.lnum == oap->end.lnum
2831 && oap->start.col == oap->end.col)
2832 {
2833 /* Special case: inside a single char */
2834 is_oneChar = TRUE;
2835 bd.startspaces = oap->end.coladd
2836 - oap->start.coladd + oap->inclusive;
2837 endcol = startcol;
2838 }
2839 else
2840 {
2841 bd.endspaces = oap->end.coladd
2842 + oap->inclusive;
2843 endcol -= oap->inclusive;
2844 }
2845 }
2846 }
2847#endif
2848 }
2849 if (startcol > endcol
2850#ifdef FEAT_VIRTUALEDIT
2851 || is_oneChar
2852#endif
2853 )
2854 bd.textlen = 0;
2855 else
2856 {
2857 if (endcol == MAXCOL)
2858 endcol = STRLEN(p);
2859 bd.textlen = endcol - startcol + oap->inclusive;
2860 }
2861 bd.textstart = p + startcol;
2862 if (yank_copy_line(&bd, y_idx) == FAIL)
2863 goto fail;
2864 break;
2865 }
2866 /* NOTREACHED */
2867 }
2868 }
2869
2870 if (curr != y_current) /* append the new block to the old block */
2871 {
2872 new_ptr = (char_u **)lalloc((long_u)(sizeof(char_u *) *
2873 (curr->y_size + y_current->y_size)), TRUE);
2874 if (new_ptr == NULL)
2875 goto fail;
2876 for (j = 0; j < curr->y_size; ++j)
2877 new_ptr[j] = curr->y_array[j];
2878 vim_free(curr->y_array);
2879 curr->y_array = new_ptr;
2880
2881 if (yanktype == MLINE) /* MLINE overrides MCHAR and MBLOCK */
2882 curr->y_type = MLINE;
2883
Bram Moolenaar4399ef42005-02-12 14:29:27 +00002884 /* Concatenate the last line of the old block with the first line of
2885 * the new block, unless being Vi compatible. */
2886 if (curr->y_type == MCHAR && vim_strchr(p_cpo, CPO_REGAPPEND) == NULL)
Bram Moolenaar071d4272004-06-13 20:20:40 +00002887 {
2888 pnew = lalloc((long_u)(STRLEN(curr->y_array[curr->y_size - 1])
2889 + STRLEN(y_current->y_array[0]) + 1), TRUE);
2890 if (pnew == NULL)
2891 {
2892 y_idx = y_current->y_size - 1;
2893 goto fail;
2894 }
2895 STRCPY(pnew, curr->y_array[--j]);
2896 STRCAT(pnew, y_current->y_array[0]);
2897 vim_free(curr->y_array[j]);
2898 vim_free(y_current->y_array[0]);
2899 curr->y_array[j++] = pnew;
2900 y_idx = 1;
2901 }
2902 else
2903 y_idx = 0;
2904 while (y_idx < y_current->y_size)
2905 curr->y_array[j++] = y_current->y_array[y_idx++];
2906 curr->y_size = j;
2907 vim_free(y_current->y_array);
2908 y_current = curr;
2909 }
2910 if (mess) /* Display message about yank? */
2911 {
2912 if (yanktype == MCHAR
2913#ifdef FEAT_VISUAL
2914 && !oap->block_mode
2915#endif
2916 && yanklines == 1)
2917 yanklines = 0;
2918 /* Some versions of Vi use ">=" here, some don't... */
2919 if (yanklines > p_report)
2920 {
2921 /* redisplay now, so message is not deleted */
2922 update_topline_redraw();
2923 if (yanklines == 1)
Bram Moolenaare2cc9702005-03-15 22:43:58 +00002924 {
2925#ifdef FEAT_VISUAL
2926 if (oap->block_mode)
2927 MSG(_("block of 1 line yanked"));
2928 else
2929#endif
2930 MSG(_("1 line yanked"));
2931 }
2932#ifdef FEAT_VISUAL
2933 else if (oap->block_mode)
2934 smsg((char_u *)_("block of %ld lines yanked"), yanklines);
2935#endif
Bram Moolenaar071d4272004-06-13 20:20:40 +00002936 else
2937 smsg((char_u *)_("%ld lines yanked"), yanklines);
2938 }
2939 }
2940
2941 /*
2942 * Set "'[" and "']" marks.
2943 */
2944 curbuf->b_op_start = oap->start;
2945 curbuf->b_op_end = oap->end;
Bram Moolenaar293ee4d2004-12-09 21:34:53 +00002946 if (yanktype == MLINE
2947#ifdef FEAT_VISUAL
2948 && !oap->block_mode
2949#endif
2950 )
2951 {
2952 curbuf->b_op_start.col = 0;
2953 curbuf->b_op_end.col = MAXCOL;
2954 }
Bram Moolenaar071d4272004-06-13 20:20:40 +00002955
2956#ifdef FEAT_CLIPBOARD
2957 /*
2958 * If we were yanking to the '*' register, send result to clipboard.
2959 * If no register was specified, and "unnamed" in 'clipboard', make a copy
2960 * to the '*' register.
2961 */
2962 if (clip_star.available
2963 && (curr == &(y_regs[STAR_REGISTER])
2964 || (!deleting && oap->regname == 0 && clip_unnamed)))
2965 {
2966 if (curr != &(y_regs[STAR_REGISTER]))
2967 /* Copy the text from register 0 to the clipboard register. */
2968 copy_yank_reg(&(y_regs[STAR_REGISTER]));
2969
2970 clip_own_selection(&clip_star);
2971 clip_gen_set_selection(&clip_star);
2972 }
2973
2974# ifdef FEAT_X11
2975 /*
2976 * If we were yanking to the '+' register, send result to selection.
2977 * Also copy to the '*' register, in case auto-select is off.
2978 */
2979 else if (clip_plus.available && curr == &(y_regs[PLUS_REGISTER]))
2980 {
2981 /* No need to copy to * register upon 'unnamed' now - see below */
2982 clip_own_selection(&clip_plus);
2983 clip_gen_set_selection(&clip_plus);
2984 if (!clip_isautosel())
2985 {
2986 copy_yank_reg(&(y_regs[STAR_REGISTER]));
2987 clip_own_selection(&clip_star);
2988 clip_gen_set_selection(&clip_star);
2989 }
2990 }
2991# endif
2992#endif
2993
2994 return OK;
2995
2996fail: /* free the allocated lines */
2997 free_yank(y_idx + 1);
2998 y_current = curr;
2999 return FAIL;
3000}
3001
3002 static int
3003yank_copy_line(bd, y_idx)
3004 struct block_def *bd;
3005 long y_idx;
3006{
3007 char_u *pnew;
3008
3009 if ((pnew = alloc(bd->startspaces + bd->endspaces + bd->textlen + 1))
3010 == NULL)
3011 return FAIL;
3012 y_current->y_array[y_idx] = pnew;
3013 copy_spaces(pnew, (size_t)bd->startspaces);
3014 pnew += bd->startspaces;
3015 mch_memmove(pnew, bd->textstart, (size_t)bd->textlen);
3016 pnew += bd->textlen;
3017 copy_spaces(pnew, (size_t)bd->endspaces);
3018 pnew += bd->endspaces;
3019 *pnew = NUL;
3020 return OK;
3021}
3022
3023#ifdef FEAT_CLIPBOARD
3024/*
3025 * Make a copy of the y_current register to register "reg".
3026 */
3027 static void
3028copy_yank_reg(reg)
3029 struct yankreg *reg;
3030{
3031 struct yankreg *curr = y_current;
3032 long j;
3033
3034 y_current = reg;
3035 free_yank_all();
3036 *y_current = *curr;
3037 y_current->y_array = (char_u **)lalloc_clear(
3038 (long_u)(sizeof(char_u *) * y_current->y_size), TRUE);
3039 if (y_current->y_array == NULL)
3040 y_current->y_size = 0;
3041 else
3042 for (j = 0; j < y_current->y_size; ++j)
3043 if ((y_current->y_array[j] = vim_strsave(curr->y_array[j])) == NULL)
3044 {
3045 free_yank(j);
3046 y_current->y_size = 0;
3047 break;
3048 }
3049 y_current = curr;
3050}
3051#endif
3052
3053/*
Bram Moolenaar677ee682005-01-27 14:41:15 +00003054 * Put contents of register "regname" into the text.
3055 * Caller must check "regname" to be valid!
3056 * "flags": PUT_FIXINDENT make indent look nice
3057 * PUT_CURSEND leave cursor after end of new text
3058 * PUT_LINE force linewise put (":put")
Bram Moolenaar071d4272004-06-13 20:20:40 +00003059 */
3060 void
3061do_put(regname, dir, count, flags)
3062 int regname;
3063 int dir; /* BACKWARD for 'P', FORWARD for 'p' */
3064 long count;
3065 int flags;
3066{
3067 char_u *ptr;
3068 char_u *newp, *oldp;
3069 int yanklen;
3070 int totlen = 0; /* init for gcc */
3071 linenr_T lnum;
3072 colnr_T col;
3073 long i; /* index in y_array[] */
3074 int y_type;
3075 long y_size;
3076#ifdef FEAT_VISUAL
3077 int oldlen;
3078 long y_width = 0;
3079 colnr_T vcol;
3080 int delcount;
3081 int incr = 0;
3082 long j;
3083 struct block_def bd;
3084#endif
3085 char_u **y_array = NULL;
3086 long nr_lines = 0;
3087 pos_T new_cursor;
3088 int indent;
3089 int orig_indent = 0; /* init for gcc */
3090 int indent_diff = 0; /* init for gcc */
3091 int first_indent = TRUE;
3092 int lendiff = 0;
3093 pos_T old_pos;
3094 char_u *insert_string = NULL;
3095 int allocated = FALSE;
3096 long cnt;
3097
3098#ifdef FEAT_CLIPBOARD
3099 /* Adjust register name for "unnamed" in 'clipboard'. */
3100 adjust_clip_reg(&regname);
3101 (void)may_get_selection(regname);
3102#endif
3103
3104 if (flags & PUT_FIXINDENT)
3105 orig_indent = get_indent();
3106
3107 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */
3108 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */
3109
3110 /*
3111 * Using inserted text works differently, because the register includes
3112 * special characters (newlines, etc.).
3113 */
3114 if (regname == '.')
3115 {
3116 (void)stuff_inserted((dir == FORWARD ? (count == -1 ? 'o' : 'a') :
3117 (count == -1 ? 'O' : 'i')), count, FALSE);
3118 /* Putting the text is done later, so can't really move the cursor to
3119 * the next character. Use "l" to simulate it. */
3120 if ((flags & PUT_CURSEND) && gchar_cursor() != NUL)
3121 stuffcharReadbuff('l');
3122 return;
3123 }
3124
3125 /*
3126 * For special registers '%' (file name), '#' (alternate file name) and
3127 * ':' (last command line), etc. we have to create a fake yank register.
3128 */
3129 if (get_spec_reg(regname, &insert_string, &allocated, TRUE))
3130 {
3131 if (insert_string == NULL)
3132 return;
3133 }
3134
3135 if (insert_string != NULL)
3136 {
3137 y_type = MCHAR;
3138#ifdef FEAT_EVAL
3139 if (regname == '=')
3140 {
3141 /* For the = register we need to split the string at NL
3142 * characters. */
3143 /* Loop twice: count the number of lines and save them. */
3144 for (;;)
3145 {
3146 y_size = 0;
3147 ptr = insert_string;
3148 while (ptr != NULL)
3149 {
3150 if (y_array != NULL)
3151 y_array[y_size] = ptr;
3152 ++y_size;
3153 ptr = vim_strchr(ptr, '\n');
3154 if (ptr != NULL)
3155 {
3156 if (y_array != NULL)
3157 *ptr = NUL;
3158 ++ptr;
3159 /* A trailing '\n' makes the string linewise */
3160 if (*ptr == NUL)
3161 {
3162 y_type = MLINE;
3163 break;
3164 }
3165 }
3166 }
3167 if (y_array != NULL)
3168 break;
3169 y_array = (char_u **)alloc((unsigned)
3170 (y_size * sizeof(char_u *)));
3171 if (y_array == NULL)
3172 goto end;
3173 }
3174 }
3175 else
3176#endif
3177 {
3178 y_size = 1; /* use fake one-line yank register */
3179 y_array = &insert_string;
3180 }
3181 }
3182 else
3183 {
3184 get_yank_register(regname, FALSE);
3185
3186 y_type = y_current->y_type;
3187#ifdef FEAT_VISUAL
3188 y_width = y_current->y_width;
3189#endif
3190 y_size = y_current->y_size;
3191 y_array = y_current->y_array;
3192 }
3193
3194#ifdef FEAT_VISUAL
3195 if (y_type == MLINE)
3196 {
3197 if (flags & PUT_LINE_SPLIT)
3198 {
3199 /* "p" or "P" in Visual mode: split the lines to put the text in
3200 * between. */
3201 if (u_save_cursor() == FAIL)
3202 goto end;
3203 ptr = vim_strsave(ml_get_cursor());
3204 if (ptr == NULL)
3205 goto end;
3206 ml_append(curwin->w_cursor.lnum, ptr, (colnr_T)0, FALSE);
3207 vim_free(ptr);
3208
3209 ptr = vim_strnsave(ml_get_curline(), curwin->w_cursor.col);
3210 if (ptr == NULL)
3211 goto end;
3212 ml_replace(curwin->w_cursor.lnum, ptr, FALSE);
3213 ++nr_lines;
3214 dir = FORWARD;
3215 }
3216 if (flags & PUT_LINE_FORWARD)
3217 {
3218 /* Must be "p" for a Visual block, put lines below the block. */
3219 curwin->w_cursor = curbuf->b_visual_end;
3220 dir = FORWARD;
3221 }
3222 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */
3223 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */
3224 }
3225#endif
3226
3227 if (flags & PUT_LINE) /* :put command or "p" in Visual line mode. */
3228 y_type = MLINE;
3229
3230 if (y_size == 0 || y_array == NULL)
3231 {
3232 EMSG2(_("E353: Nothing in register %s"),
3233 regname == 0 ? (char_u *)"\"" : transchar(regname));
3234 goto end;
3235 }
3236
3237#ifdef FEAT_VISUAL
3238 if (y_type == MBLOCK)
3239 {
3240 lnum = curwin->w_cursor.lnum + y_size + 1;
3241 if (lnum > curbuf->b_ml.ml_line_count)
3242 lnum = curbuf->b_ml.ml_line_count + 1;
3243 if (u_save(curwin->w_cursor.lnum - 1, lnum) == FAIL)
3244 goto end;
3245 }
3246 else
3247#endif
3248 if (y_type == MLINE)
3249 {
3250 lnum = curwin->w_cursor.lnum;
3251#ifdef FEAT_FOLDING
3252 /* Correct line number for closed fold. Don't move the cursor yet,
3253 * u_save() uses it. */
3254 if (dir == BACKWARD)
3255 (void)hasFolding(lnum, &lnum, NULL);
3256 else
3257 (void)hasFolding(lnum, NULL, &lnum);
3258#endif
3259 if (dir == FORWARD)
3260 ++lnum;
3261 if (u_save(lnum - 1, lnum) == FAIL)
3262 goto end;
3263#ifdef FEAT_FOLDING
3264 if (dir == FORWARD)
3265 curwin->w_cursor.lnum = lnum - 1;
3266 else
3267 curwin->w_cursor.lnum = lnum;
3268 curbuf->b_op_start = curwin->w_cursor; /* for mark_adjust() */
3269#endif
3270 }
3271 else if (u_save_cursor() == FAIL)
3272 goto end;
3273
3274 yanklen = (int)STRLEN(y_array[0]);
3275
3276#ifdef FEAT_VIRTUALEDIT
3277 if (ve_flags == VE_ALL && y_type == MCHAR)
3278 {
3279 if (gchar_cursor() == TAB)
3280 {
3281 /* Don't need to insert spaces when "p" on the last position of a
3282 * tab or "P" on the first position. */
3283 if (dir == FORWARD
3284 ? (int)curwin->w_cursor.coladd < curbuf->b_p_ts - 1
3285 : curwin->w_cursor.coladd > 0)
3286 coladvance_force(getviscol());
3287 else
3288 curwin->w_cursor.coladd = 0;
3289 }
3290 else if (curwin->w_cursor.coladd > 0 || gchar_cursor() == NUL)
3291 coladvance_force(getviscol() + (dir == FORWARD));
3292 }
3293#endif
3294
3295 lnum = curwin->w_cursor.lnum;
3296 col = curwin->w_cursor.col;
3297
3298#ifdef FEAT_VISUAL
3299 /*
3300 * Block mode
3301 */
3302 if (y_type == MBLOCK)
3303 {
3304 char c = gchar_cursor();
3305 colnr_T endcol2 = 0;
3306
3307 if (dir == FORWARD && c != NUL)
3308 {
3309#ifdef FEAT_VIRTUALEDIT
3310 if (ve_flags == VE_ALL)
3311 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2);
3312 else
3313#endif
3314 getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
3315
3316#ifdef FEAT_MBYTE
3317 if (has_mbyte)
3318 /* move to start of next multi-byte character */
3319 curwin->w_cursor.col += (*mb_ptr2len_check)(ml_get_cursor());
3320 else
3321#endif
3322#ifdef FEAT_VIRTUALEDIT
3323 if (c != TAB || ve_flags != VE_ALL)
3324#endif
3325 ++curwin->w_cursor.col;
3326 ++col;
3327 }
3328 else
3329 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2);
3330
3331#ifdef FEAT_VIRTUALEDIT
3332 col += curwin->w_cursor.coladd;
3333 if (ve_flags == VE_ALL && curwin->w_cursor.coladd > 0)
3334 {
3335 if (dir == FORWARD && c == NUL)
3336 ++col;
3337 if (dir != FORWARD && c != NUL)
3338 ++curwin->w_cursor.col;
3339 if (c == TAB)
3340 {
3341 if (dir == BACKWARD && curwin->w_cursor.col)
3342 curwin->w_cursor.col--;
3343 if (dir == FORWARD && col - 1 == endcol2)
3344 curwin->w_cursor.col++;
3345 }
3346 }
3347 curwin->w_cursor.coladd = 0;
3348#endif
3349 for (i = 0; i < y_size; ++i)
3350 {
3351 int spaces;
3352 char shortline;
3353
3354 bd.startspaces = 0;
3355 bd.endspaces = 0;
3356 bd.textcol = 0;
3357 vcol = 0;
3358 delcount = 0;
3359
3360 /* add a new line */
3361 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
3362 {
3363 if (ml_append(curbuf->b_ml.ml_line_count, (char_u *)"",
3364 (colnr_T)1, FALSE) == FAIL)
3365 break;
3366 ++nr_lines;
3367 }
3368 /* get the old line and advance to the position to insert at */
3369 oldp = ml_get_curline();
3370 oldlen = (int)STRLEN(oldp);
3371 for (ptr = oldp; vcol < col && *ptr; )
3372 {
3373 /* Count a tab for what it's worth (if list mode not on) */
3374 incr = lbr_chartabsize_adv(&ptr, (colnr_T)vcol);
3375 vcol += incr;
3376 }
3377 bd.textcol = (colnr_T)(ptr - oldp);
3378
3379 shortline = (vcol < col) || (vcol == col && !*ptr) ;
3380
3381 if (vcol < col) /* line too short, padd with spaces */
3382 bd.startspaces = col - vcol;
3383 else if (vcol > col)
3384 {
3385 bd.endspaces = vcol - col;
3386 bd.startspaces = incr - bd.endspaces;
3387 --bd.textcol;
3388 delcount = 1;
3389#ifdef FEAT_MBYTE
3390 if (has_mbyte)
3391 bd.textcol -= (*mb_head_off)(oldp, oldp + bd.textcol);
3392#endif
3393 if (oldp[bd.textcol] != TAB)
3394 {
3395 /* Only a Tab can be split into spaces. Other
3396 * characters will have to be moved to after the
3397 * block, causing misalignment. */
3398 delcount = 0;
3399 bd.endspaces = 0;
3400 }
3401 }
3402
3403 yanklen = (int)STRLEN(y_array[i]);
3404
3405 /* calculate number of spaces required to fill right side of block*/
3406 spaces = y_width + 1;
3407 for (j = 0; j < yanklen; j++)
3408 spaces -= lbr_chartabsize(&y_array[i][j], 0);
3409 if (spaces < 0)
3410 spaces = 0;
3411
3412 /* insert the new text */
3413 totlen = count * (yanklen + spaces) + bd.startspaces + bd.endspaces;
3414 newp = alloc_check((unsigned)totlen + oldlen + 1);
3415 if (newp == NULL)
3416 break;
3417 /* copy part up to cursor to new line */
3418 ptr = newp;
3419 mch_memmove(ptr, oldp, (size_t)bd.textcol);
3420 ptr += bd.textcol;
3421 /* may insert some spaces before the new text */
3422 copy_spaces(ptr, (size_t)bd.startspaces);
3423 ptr += bd.startspaces;
3424 /* insert the new text */
3425 for (j = 0; j < count; ++j)
3426 {
3427 mch_memmove(ptr, y_array[i], (size_t)yanklen);
3428 ptr += yanklen;
3429
3430 /* insert block's trailing spaces only if there's text behind */
3431 if ((j < count - 1 || !shortline) && spaces)
3432 {
3433 copy_spaces(ptr, (size_t)spaces);
3434 ptr += spaces;
3435 }
3436 }
3437 /* may insert some spaces after the new text */
3438 copy_spaces(ptr, (size_t)bd.endspaces);
3439 ptr += bd.endspaces;
3440 /* move the text after the cursor to the end of the line. */
3441 mch_memmove(ptr, oldp + bd.textcol + delcount,
3442 (size_t)(oldlen - bd.textcol - delcount + 1));
3443 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
3444
3445 ++curwin->w_cursor.lnum;
3446 if (i == 0)
3447 curwin->w_cursor.col += bd.startspaces;
3448 }
3449
3450 changed_lines(lnum, 0, curwin->w_cursor.lnum, nr_lines);
3451
3452 /* Set '[ mark. */
3453 curbuf->b_op_start = curwin->w_cursor;
3454 curbuf->b_op_start.lnum = lnum;
3455
3456 /* adjust '] mark */
3457 curbuf->b_op_end.lnum = curwin->w_cursor.lnum - 1;
3458 curbuf->b_op_end.col = bd.textcol + totlen - 1;
Bram Moolenaar13fcaaf2005-04-15 21:13:42 +00003459# ifdef FEAT_VIRTUALEDIT
Bram Moolenaar071d4272004-06-13 20:20:40 +00003460 curbuf->b_op_end.coladd = 0;
Bram Moolenaar13fcaaf2005-04-15 21:13:42 +00003461# endif
Bram Moolenaar071d4272004-06-13 20:20:40 +00003462 if (flags & PUT_CURSEND)
3463 {
3464 curwin->w_cursor = curbuf->b_op_end;
3465 curwin->w_cursor.col++;
3466 }
3467 else
3468 curwin->w_cursor.lnum = lnum;
3469 }
3470 else
3471#endif
3472 {
3473 /*
3474 * Character or Line mode
3475 */
3476 if (y_type == MCHAR)
3477 {
3478 /* if type is MCHAR, FORWARD is the same as BACKWARD on the next
3479 * char */
3480 if (dir == FORWARD && gchar_cursor() != NUL)
3481 {
3482#ifdef FEAT_MBYTE
3483 if (has_mbyte)
3484 {
3485 int bytelen = (*mb_ptr2len_check)(ml_get_cursor());
3486
3487 /* put it on the next of the multi-byte character. */
3488 col += bytelen;
3489 if (yanklen)
3490 {
3491 curwin->w_cursor.col += bytelen;
3492 curbuf->b_op_end.col += bytelen;
3493 }
3494 }
3495 else
3496#endif
3497 {
3498 ++col;
3499 if (yanklen)
3500 {
3501 ++curwin->w_cursor.col;
3502 ++curbuf->b_op_end.col;
3503 }
3504 }
3505 }
3506 new_cursor = curwin->w_cursor;
3507 curbuf->b_op_start = curwin->w_cursor;
3508 }
3509 /*
3510 * Line mode: BACKWARD is the same as FORWARD on the previous line
3511 */
3512 else if (dir == BACKWARD)
3513 --lnum;
3514
3515 /*
3516 * simple case: insert into current line
3517 */
3518 if (y_type == MCHAR && y_size == 1)
3519 {
3520 totlen = count * yanklen;
3521 if (totlen)
3522 {
3523 oldp = ml_get(lnum);
3524 newp = alloc_check((unsigned)(STRLEN(oldp) + totlen + 1));
3525 if (newp == NULL)
3526 goto end; /* alloc() will give error message */
3527 mch_memmove(newp, oldp, (size_t)col);
3528 ptr = newp + col;
3529 for (i = 0; i < count; ++i)
3530 {
3531 mch_memmove(ptr, y_array[0], (size_t)yanklen);
3532 ptr += yanklen;
3533 }
3534 mch_memmove(ptr, oldp + col, STRLEN(oldp + col) + 1);
3535 ml_replace(lnum, newp, FALSE);
3536 /* Put cursor on last putted char. */
3537 curwin->w_cursor.col += (colnr_T)(totlen - 1);
3538 }
3539 curbuf->b_op_end = curwin->w_cursor;
3540 /* For "CTRL-O p" in Insert mode, put cursor after last char */
3541 if (totlen && (restart_edit != 0 || (flags & PUT_CURSEND)))
3542 ++curwin->w_cursor.col;
3543 changed_bytes(lnum, col);
3544 }
3545 else
3546 {
3547 /*
3548 * Insert at least one line. When y_type is MCHAR, break the first
3549 * line in two.
3550 */
3551 for (cnt = 1; cnt <= count; ++cnt)
3552 {
3553 i = 0;
3554 if (y_type == MCHAR)
3555 {
3556 /*
3557 * Split the current line in two at the insert position.
3558 * First insert y_array[size - 1] in front of second line.
3559 * Then append y_array[0] to first line.
3560 */
3561 lnum = new_cursor.lnum;
3562 ptr = ml_get(lnum) + col;
3563 totlen = (int)STRLEN(y_array[y_size - 1]);
3564 newp = alloc_check((unsigned)(STRLEN(ptr) + totlen + 1));
3565 if (newp == NULL)
3566 goto error;
3567 STRCPY(newp, y_array[y_size - 1]);
3568 STRCAT(newp, ptr);
3569 /* insert second line */
3570 ml_append(lnum, newp, (colnr_T)0, FALSE);
3571 vim_free(newp);
3572
3573 oldp = ml_get(lnum);
3574 newp = alloc_check((unsigned)(col + yanklen + 1));
3575 if (newp == NULL)
3576 goto error;
3577 /* copy first part of line */
3578 mch_memmove(newp, oldp, (size_t)col);
3579 /* append to first line */
3580 mch_memmove(newp + col, y_array[0], (size_t)(yanklen + 1));
3581 ml_replace(lnum, newp, FALSE);
3582
3583 curwin->w_cursor.lnum = lnum;
3584 i = 1;
3585 }
3586
3587 for (; i < y_size; ++i)
3588 {
3589 if ((y_type != MCHAR || i < y_size - 1)
3590 && ml_append(lnum, y_array[i], (colnr_T)0, FALSE)
3591 == FAIL)
3592 goto error;
3593 lnum++;
3594 ++nr_lines;
3595 if (flags & PUT_FIXINDENT)
3596 {
3597 old_pos = curwin->w_cursor;
3598 curwin->w_cursor.lnum = lnum;
3599 ptr = ml_get(lnum);
3600 if (cnt == count && i == y_size - 1)
3601 lendiff = (int)STRLEN(ptr);
3602#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
3603 if (*ptr == '#' && preprocs_left())
3604 indent = 0; /* Leave # lines at start */
3605 else
3606#endif
3607 if (*ptr == NUL)
3608 indent = 0; /* Ignore empty lines */
3609 else if (first_indent)
3610 {
3611 indent_diff = orig_indent - get_indent();
3612 indent = orig_indent;
3613 first_indent = FALSE;
3614 }
3615 else if ((indent = get_indent() + indent_diff) < 0)
3616 indent = 0;
3617 (void)set_indent(indent, 0);
3618 curwin->w_cursor = old_pos;
3619 /* remember how many chars were removed */
3620 if (cnt == count && i == y_size - 1)
3621 lendiff -= (int)STRLEN(ml_get(lnum));
3622 }
3623 }
3624 }
3625
3626error:
3627 /* Adjust marks. */
3628 if (y_type == MLINE)
3629 {
3630 curbuf->b_op_start.col = 0;
3631 if (dir == FORWARD)
3632 curbuf->b_op_start.lnum++;
3633 }
3634 mark_adjust(curbuf->b_op_start.lnum + (y_type == MCHAR),
3635 (linenr_T)MAXLNUM, nr_lines, 0L);
3636
3637 /* note changed text for displaying and folding */
3638 if (y_type == MCHAR)
3639 changed_lines(curwin->w_cursor.lnum, col,
3640 curwin->w_cursor.lnum + 1, nr_lines);
3641 else
3642 changed_lines(curbuf->b_op_start.lnum, 0,
3643 curbuf->b_op_start.lnum, nr_lines);
3644
3645 /* put '] mark at last inserted character */
3646 curbuf->b_op_end.lnum = lnum;
3647 /* correct length for change in indent */
3648 col = (colnr_T)STRLEN(y_array[y_size - 1]) - lendiff;
3649 if (col > 1)
3650 curbuf->b_op_end.col = col - 1;
3651 else
3652 curbuf->b_op_end.col = 0;
3653
Bram Moolenaar26a60b42005-02-22 08:49:11 +00003654 if (flags & PUT_CURSLINE)
3655 {
Bram Moolenaar13fcaaf2005-04-15 21:13:42 +00003656 /* ":put": put cursor on last inserted line */
Bram Moolenaar26a60b42005-02-22 08:49:11 +00003657 curwin->w_cursor.lnum = lnum;
3658 beginline(BL_WHITE | BL_FIX);
3659 }
3660 else if (flags & PUT_CURSEND)
Bram Moolenaar071d4272004-06-13 20:20:40 +00003661 {
3662 /* put cursor after inserted text */
3663 if (y_type == MLINE)
3664 {
3665 if (lnum >= curbuf->b_ml.ml_line_count)
3666 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
3667 else
3668 curwin->w_cursor.lnum = lnum + 1;
3669 curwin->w_cursor.col = 0;
3670 }
3671 else
3672 {
3673 curwin->w_cursor.lnum = lnum;
3674 curwin->w_cursor.col = col;
3675 }
3676 }
3677 else if (y_type == MLINE)
3678 {
Bram Moolenaar26a60b42005-02-22 08:49:11 +00003679 /* put cursor on first non-blank in first inserted line */
Bram Moolenaar071d4272004-06-13 20:20:40 +00003680 curwin->w_cursor.col = 0;
3681 if (dir == FORWARD)
3682 ++curwin->w_cursor.lnum;
3683 beginline(BL_WHITE | BL_FIX);
3684 }
3685 else /* put cursor on first inserted character */
3686 curwin->w_cursor = new_cursor;
3687 }
3688 }
3689
3690 msgmore(nr_lines);
3691 curwin->w_set_curswant = TRUE;
3692
3693end:
3694 if (allocated)
3695 {
3696 vim_free(insert_string);
3697 if (regname == '=')
3698 vim_free(y_array);
3699 }
Bram Moolenaar677ee682005-01-27 14:41:15 +00003700 /* If the cursor is past the end of the line put it at the end. */
Bram Moolenaar071d4272004-06-13 20:20:40 +00003701 if (gchar_cursor() == NUL
3702 && curwin->w_cursor.col > 0
3703 && !(restart_edit || (State & INSERT)))
3704 {
3705 --curwin->w_cursor.col;
3706#ifdef FEAT_VIRTUALEDIT
3707 if (ve_flags == VE_ALL)
3708 ++curwin->w_cursor.coladd;
3709#endif
3710 }
3711}
3712
3713#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT) || defined(PROTO)
3714/*
3715 * Return TRUE if lines starting with '#' should be left aligned.
3716 */
3717 int
3718preprocs_left()
3719{
3720 return
3721# ifdef FEAT_SMARTINDENT
3722# ifdef FEAT_CINDENT
3723 (curbuf->b_p_si && !curbuf->b_p_cin) ||
3724# else
3725 curbuf->b_p_si
3726# endif
3727# endif
3728# ifdef FEAT_CINDENT
3729 (curbuf->b_p_cin && in_cinkeys('#', ' ', TRUE))
3730# endif
3731 ;
3732}
3733#endif
3734
3735/* Return the character name of the register with the given number */
3736 int
3737get_register_name(num)
3738 int num;
3739{
3740 if (num == -1)
3741 return '"';
3742 else if (num < 10)
3743 return num + '0';
3744 else if (num == DELETION_REGISTER)
3745 return '-';
3746#ifdef FEAT_CLIPBOARD
3747 else if (num == STAR_REGISTER)
3748 return '*';
3749 else if (num == PLUS_REGISTER)
3750 return '+';
3751#endif
3752 else
3753 {
3754#ifdef EBCDIC
3755 int i;
3756
3757 /* EBCDIC is really braindead ... */
3758 i = 'a' + (num - 10);
3759 if (i > 'i')
3760 i += 7;
3761 if (i > 'r')
3762 i += 8;
3763 return i;
3764#else
3765 return num + 'a' - 10;
3766#endif
3767 }
3768}
3769
3770/*
3771 * ":dis" and ":registers": Display the contents of the yank registers.
3772 */
3773 void
3774ex_display(eap)
3775 exarg_T *eap;
3776{
3777 int i, n;
3778 long j;
3779 char_u *p;
3780 struct yankreg *yb;
3781 int name;
3782 int attr;
3783 char_u *arg = eap->arg;
Bram Moolenaard4755bb2004-09-02 19:12:26 +00003784#ifdef FEAT_MBYTE
3785 int clen;
3786#else
3787# define clen 1
3788#endif
Bram Moolenaar071d4272004-06-13 20:20:40 +00003789
3790 if (arg != NULL && *arg == NUL)
3791 arg = NULL;
3792 attr = hl_attr(HLF_8);
3793
3794 /* Highlight title */
3795 MSG_PUTS_TITLE(_("\n--- Registers ---"));
3796 for (i = -1; i < NUM_REGISTERS && !got_int; ++i)
3797 {
3798 name = get_register_name(i);
3799 if (arg != NULL && vim_strchr(arg, name) == NULL)
3800 continue; /* did not ask for this register */
3801
3802#ifdef FEAT_CLIPBOARD
3803 /* Adjust register name for "unnamed" in 'clipboard'.
3804 * When it's a clipboard register, fill it with the current contents
3805 * of the clipboard. */
3806 adjust_clip_reg(&name);
3807 (void)may_get_selection(name);
3808#endif
3809
3810 if (i == -1)
3811 {
3812 if (y_previous != NULL)
3813 yb = y_previous;
3814 else
3815 yb = &(y_regs[0]);
3816 }
3817 else
3818 yb = &(y_regs[i]);
3819 if (yb->y_array != NULL)
3820 {
3821 msg_putchar('\n');
3822 msg_putchar('"');
3823 msg_putchar(name);
3824 MSG_PUTS(" ");
3825
3826 n = (int)Columns - 6;
3827 for (j = 0; j < yb->y_size && n > 1; ++j)
3828 {
3829 if (j)
3830 {
3831 MSG_PUTS_ATTR("^J", attr);
3832 n -= 2;
3833 }
3834 for (p = yb->y_array[j]; *p && (n -= ptr2cells(p)) >= 0; ++p)
3835 {
Bram Moolenaar071d4272004-06-13 20:20:40 +00003836#ifdef FEAT_MBYTE
Bram Moolenaard4755bb2004-09-02 19:12:26 +00003837 clen = (*mb_ptr2len_check)(p);
3838#endif
3839 msg_outtrans_len(p, clen);
3840#ifdef FEAT_MBYTE
3841 p += clen - 1;
Bram Moolenaar071d4272004-06-13 20:20:40 +00003842#endif
3843 }
3844 }
3845 if (n > 1 && yb->y_type == MLINE)
3846 MSG_PUTS_ATTR("^J", attr);
3847 out_flush(); /* show one line at a time */
3848 }
3849 ui_breakcheck();
3850 }
3851
3852 /*
3853 * display last inserted text
3854 */
3855 if ((p = get_last_insert()) != NULL
3856 && (arg == NULL || vim_strchr(arg, '.') != NULL) && !got_int)
3857 {
3858 MSG_PUTS("\n\". ");
3859 dis_msg(p, TRUE);
3860 }
3861
3862 /*
3863 * display last command line
3864 */
3865 if (last_cmdline != NULL && (arg == NULL || vim_strchr(arg, ':') != NULL)
3866 && !got_int)
3867 {
3868 MSG_PUTS("\n\": ");
3869 dis_msg(last_cmdline, FALSE);
3870 }
3871
3872 /*
3873 * display current file name
3874 */
3875 if (curbuf->b_fname != NULL
3876 && (arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int)
3877 {
3878 MSG_PUTS("\n\"% ");
3879 dis_msg(curbuf->b_fname, FALSE);
3880 }
3881
3882 /*
3883 * display alternate file name
3884 */
3885 if ((arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int)
3886 {
3887 char_u *fname;
3888 linenr_T dummy;
3889
3890 if (buflist_name_nr(0, &fname, &dummy) != FAIL)
3891 {
3892 MSG_PUTS("\n\"# ");
3893 dis_msg(fname, FALSE);
3894 }
3895 }
3896
3897 /*
3898 * display last search pattern
3899 */
3900 if (last_search_pat() != NULL
3901 && (arg == NULL || vim_strchr(arg, '/') != NULL) && !got_int)
3902 {
3903 MSG_PUTS("\n\"/ ");
3904 dis_msg(last_search_pat(), FALSE);
3905 }
3906
3907#ifdef FEAT_EVAL
3908 /*
3909 * display last used expression
3910 */
3911 if (expr_line != NULL && (arg == NULL || vim_strchr(arg, '=') != NULL)
3912 && !got_int)
3913 {
3914 MSG_PUTS("\n\"= ");
3915 dis_msg(expr_line, FALSE);
3916 }
3917#endif
3918}
3919
3920/*
3921 * display a string for do_dis()
3922 * truncate at end of screen line
3923 */
3924 static void
3925dis_msg(p, skip_esc)
3926 char_u *p;
3927 int skip_esc; /* if TRUE, ignore trailing ESC */
3928{
3929 int n;
3930#ifdef FEAT_MBYTE
3931 int l;
3932#endif
3933
3934 n = (int)Columns - 6;
3935 while (*p != NUL
3936 && !(*p == ESC && skip_esc && *(p + 1) == NUL)
3937 && (n -= ptr2cells(p)) >= 0)
3938 {
3939#ifdef FEAT_MBYTE
3940 if (has_mbyte && (l = (*mb_ptr2len_check)(p)) > 1)
3941 {
3942 msg_outtrans_len(p, l);
3943 p += l;
3944 }
3945 else
3946#endif
3947 msg_outtrans_len(p++, 1);
3948 }
3949 ui_breakcheck();
3950}
3951
3952/*
3953 * join 'count' lines (minimal 2), including u_save()
3954 */
3955 void
3956do_do_join(count, insert_space)
3957 long count;
3958 int insert_space;
3959{
Bram Moolenaar4399ef42005-02-12 14:29:27 +00003960 colnr_T col = MAXCOL;
3961
Bram Moolenaar071d4272004-06-13 20:20:40 +00003962 if (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
3963 (linenr_T)(curwin->w_cursor.lnum + count)) == FAIL)
3964 return;
3965
3966 while (--count > 0)
3967 {
3968 line_breakcheck();
3969 if (got_int || do_join(insert_space) == FAIL)
3970 {
3971 beep_flush();
3972 break;
3973 }
Bram Moolenaar4399ef42005-02-12 14:29:27 +00003974 if (col == MAXCOL && vim_strchr(p_cpo, CPO_JOINCOL) != NULL)
3975 col = curwin->w_cursor.col;
Bram Moolenaar071d4272004-06-13 20:20:40 +00003976 }
3977
Bram Moolenaar4399ef42005-02-12 14:29:27 +00003978 /* Vi compatible: use the column of the first join */
3979 if (col != MAXCOL && vim_strchr(p_cpo, CPO_JOINCOL) != NULL)
3980 curwin->w_cursor.col = col;
3981
Bram Moolenaar071d4272004-06-13 20:20:40 +00003982#if 0
3983 /*
3984 * Need to update the screen if the line where the cursor is became too
3985 * long to fit on the screen.
3986 */
3987 update_topline_redraw();
3988#endif
3989}
3990
3991/*
3992 * Join two lines at the cursor position.
3993 * "redraw" is TRUE when the screen should be updated.
3994 * Caller must have setup for undo.
3995 *
3996 * return FAIL for failure, OK ohterwise
3997 */
3998 int
3999do_join(insert_space)
4000 int insert_space;
4001{
4002 char_u *curr;
4003 char_u *next, *next_start;
4004 char_u *newp;
4005 int endcurr1, endcurr2;
4006 int currsize; /* size of the current line */
4007 int nextsize; /* size of the next line */
4008 int spaces; /* number of spaces to insert */
4009 linenr_T t;
4010
4011 if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4012 return FAIL; /* can't join on last line */
4013
4014 curr = ml_get_curline();
4015 currsize = (int)STRLEN(curr);
4016 endcurr1 = endcurr2 = NUL;
4017 if (insert_space && currsize > 0)
4018 {
4019#ifdef FEAT_MBYTE
4020 if (has_mbyte)
4021 {
Bram Moolenaar1cd871b2004-12-19 22:46:22 +00004022 next = curr + currsize;
4023 mb_ptr_back(curr, next);
Bram Moolenaar071d4272004-06-13 20:20:40 +00004024 endcurr1 = (*mb_ptr2char)(next);
4025 if (next > curr)
4026 {
Bram Moolenaar1cd871b2004-12-19 22:46:22 +00004027 mb_ptr_back(curr, next);
Bram Moolenaar071d4272004-06-13 20:20:40 +00004028 endcurr2 = (*mb_ptr2char)(next);
4029 }
4030 }
4031 else
4032#endif
4033 {
4034 endcurr1 = *(curr + currsize - 1);
4035 if (currsize > 1)
4036 endcurr2 = *(curr + currsize - 2);
4037 }
4038 }
4039
4040 next = next_start = ml_get((linenr_T)(curwin->w_cursor.lnum + 1));
4041 spaces = 0;
4042 if (insert_space)
4043 {
4044 next = skipwhite(next);
4045 if (*next != ')' && currsize != 0 && endcurr1 != TAB
4046#ifdef FEAT_MBYTE
4047 && (!has_format_option(FO_MBYTE_JOIN)
4048 || (mb_ptr2char(next) < 0x100 && endcurr1 < 0x100))
4049 && (!has_format_option(FO_MBYTE_JOIN2)
4050 || mb_ptr2char(next) < 0x100 || endcurr1 < 0x100)
4051#endif
4052 )
4053 {
4054 /* don't add a space if the line is ending in a space */
4055 if (endcurr1 == ' ')
4056 endcurr1 = endcurr2;
4057 else
4058 ++spaces;
4059 /* extra space when 'joinspaces' set and line ends in '.' */
4060 if ( p_js
4061 && (endcurr1 == '.'
4062 || (vim_strchr(p_cpo, CPO_JOINSP) == NULL
4063 && (endcurr1 == '?' || endcurr1 == '!'))))
4064 ++spaces;
4065 }
4066 }
4067 nextsize = (int)STRLEN(next);
4068
4069 newp = alloc_check((unsigned)(currsize + nextsize + spaces + 1));
4070 if (newp == NULL)
4071 return FAIL;
4072
4073 /*
4074 * Insert the next line first, because we already have that pointer.
4075 * Curr has to be obtained again, because getting next will have
4076 * invalidated it.
4077 */
4078 mch_memmove(newp + currsize + spaces, next, (size_t)(nextsize + 1));
4079
4080 curr = ml_get_curline();
4081 mch_memmove(newp, curr, (size_t)currsize);
4082
4083 copy_spaces(newp + currsize, (size_t)spaces);
4084
4085 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
4086
4087 /* Only report the change in the first line here, del_lines() will report
4088 * the deleted line. */
4089 changed_lines(curwin->w_cursor.lnum, currsize,
4090 curwin->w_cursor.lnum + 1, 0L);
4091
4092 /*
4093 * Delete the following line. To do this we move the cursor there
4094 * briefly, and then move it back. After del_lines() the cursor may
4095 * have moved up (last line deleted), so the current lnum is kept in t.
4096 *
4097 * Move marks from the deleted line to the joined line, adjusting the
4098 * column. This is not Vi compatible, but Vi deletes the marks, thus that
4099 * should not really be a problem.
4100 */
4101 t = curwin->w_cursor.lnum;
4102 mark_col_adjust(t + 1, (colnr_T)0, (linenr_T)-1,
4103 (long)(currsize + spaces - (next - next_start)));
4104 ++curwin->w_cursor.lnum;
4105 del_lines(1L, FALSE);
4106 curwin->w_cursor.lnum = t;
4107
4108 /*
4109 * go to first character of the joined line
4110 */
4111 curwin->w_cursor.col = currsize;
4112 check_cursor_col();
4113#ifdef FEAT_VIRTUALEDIT
4114 curwin->w_cursor.coladd = 0;
4115#endif
4116 curwin->w_set_curswant = TRUE;
4117
4118 return OK;
4119}
4120
4121#ifdef FEAT_COMMENTS
4122/*
4123 * Return TRUE if the two comment leaders given are the same. "lnum" is
4124 * the first line. White-space is ignored. Note that the whole of
4125 * 'leader1' must match 'leader2_len' characters from 'leader2' -- webb
4126 */
4127 static int
4128same_leader(lnum, leader1_len, leader1_flags, leader2_len, leader2_flags)
4129 linenr_T lnum;
4130 int leader1_len;
4131 char_u *leader1_flags;
4132 int leader2_len;
4133 char_u *leader2_flags;
4134{
4135 int idx1 = 0, idx2 = 0;
4136 char_u *p;
4137 char_u *line1;
4138 char_u *line2;
4139
4140 if (leader1_len == 0)
4141 return (leader2_len == 0);
4142
4143 /*
4144 * If first leader has 'f' flag, the lines can be joined only if the
4145 * second line does not have a leader.
4146 * If first leader has 'e' flag, the lines can never be joined.
4147 * If fist leader has 's' flag, the lines can only be joined if there is
4148 * some text after it and the second line has the 'm' flag.
4149 */
4150 if (leader1_flags != NULL)
4151 {
4152 for (p = leader1_flags; *p && *p != ':'; ++p)
4153 {
4154 if (*p == COM_FIRST)
4155 return (leader2_len == 0);
4156 if (*p == COM_END)
4157 return FALSE;
4158 if (*p == COM_START)
4159 {
4160 if (*(ml_get(lnum) + leader1_len) == NUL)
4161 return FALSE;
4162 if (leader2_flags == NULL || leader2_len == 0)
4163 return FALSE;
4164 for (p = leader2_flags; *p && *p != ':'; ++p)
4165 if (*p == COM_MIDDLE)
4166 return TRUE;
4167 return FALSE;
4168 }
4169 }
4170 }
4171
4172 /*
4173 * Get current line and next line, compare the leaders.
4174 * The first line has to be saved, only one line can be locked at a time.
4175 */
4176 line1 = vim_strsave(ml_get(lnum));
4177 if (line1 != NULL)
4178 {
4179 for (idx1 = 0; vim_iswhite(line1[idx1]); ++idx1)
4180 ;
4181 line2 = ml_get(lnum + 1);
4182 for (idx2 = 0; idx2 < leader2_len; ++idx2)
4183 {
4184 if (!vim_iswhite(line2[idx2]))
4185 {
4186 if (line1[idx1++] != line2[idx2])
4187 break;
4188 }
4189 else
4190 while (vim_iswhite(line1[idx1]))
4191 ++idx1;
4192 }
4193 vim_free(line1);
4194 }
4195 return (idx2 == leader2_len && idx1 == leader1_len);
4196}
4197#endif
4198
4199/*
4200 * implementation of the format operator 'gq'
4201 */
4202 void
4203op_format(oap, keep_cursor)
4204 oparg_T *oap;
4205 int keep_cursor; /* keep cursor on same text char */
4206{
4207 long old_line_count = curbuf->b_ml.ml_line_count;
4208
4209 /* Place the cursor where the "gq" or "gw" command was given, so that "u"
4210 * can put it back there. */
4211 curwin->w_cursor = oap->cursor_start;
4212
4213 if (u_save((linenr_T)(oap->start.lnum - 1),
4214 (linenr_T)(oap->end.lnum + 1)) == FAIL)
4215 return;
4216 curwin->w_cursor = oap->start;
4217
4218#ifdef FEAT_VISUAL
4219 if (oap->is_VIsual)
4220 /* When there is no change: need to remove the Visual selection */
4221 redraw_curbuf_later(INVERTED);
4222#endif
4223
4224 /* Set '[ mark at the start of the formatted area */
4225 curbuf->b_op_start = oap->start;
4226
4227 /* For "gw" remember the cursor position and put it back below (adjusted
4228 * for joined and split lines). */
4229 if (keep_cursor)
4230 saved_cursor = oap->cursor_start;
4231
4232 format_lines(oap->line_count);
4233
4234 /*
4235 * Leave the cursor at the first non-blank of the last formatted line.
4236 * If the cursor was moved one line back (e.g. with "Q}") go to the next
4237 * line, so "." will do the next lines.
4238 */
4239 if (oap->end_adjusted && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
4240 ++curwin->w_cursor.lnum;
4241 beginline(BL_WHITE | BL_FIX);
4242 old_line_count = curbuf->b_ml.ml_line_count - old_line_count;
4243 msgmore(old_line_count);
4244
4245 /* put '] mark on the end of the formatted area */
4246 curbuf->b_op_end = curwin->w_cursor;
4247
4248 if (keep_cursor)
4249 {
4250 curwin->w_cursor = saved_cursor;
4251 saved_cursor.lnum = 0;
4252 }
4253
4254#ifdef FEAT_VISUAL
4255 if (oap->is_VIsual)
4256 {
4257 win_T *wp;
4258
4259 FOR_ALL_WINDOWS(wp)
4260 {
4261 if (wp->w_old_cursor_lnum != 0)
4262 {
4263 /* When lines have been inserted or deleted, adjust the end of
4264 * the Visual area to be redrawn. */
4265 if (wp->w_old_cursor_lnum > wp->w_old_visual_lnum)
4266 wp->w_old_cursor_lnum += old_line_count;
4267 else
4268 wp->w_old_visual_lnum += old_line_count;
4269 }
4270 }
4271 }
4272#endif
4273}
4274
4275/*
4276 * Format "line_count" lines, starting at the cursor position.
4277 * When "line_count" is negative, format until the end of the paragraph.
4278 * Lines after the cursor line are saved for undo, caller must have saved the
4279 * first line.
4280 */
4281 void
4282format_lines(line_count)
4283 linenr_T line_count;
4284{
4285 int max_len;
4286 int is_not_par; /* current line not part of parag. */
4287 int next_is_not_par; /* next line not part of paragraph */
4288 int is_end_par; /* at end of paragraph */
4289 int prev_is_end_par = FALSE;/* prev. line not part of parag. */
4290 int next_is_start_par = FALSE;
4291#ifdef FEAT_COMMENTS
4292 int leader_len = 0; /* leader len of current line */
4293 int next_leader_len; /* leader len of next line */
4294 char_u *leader_flags = NULL; /* flags for leader of current line */
4295 char_u *next_leader_flags; /* flags for leader of next line */
4296 int do_comments; /* format comments */
4297#endif
4298 int advance = TRUE;
4299 int second_indent = -1;
4300 int do_second_indent;
4301 int do_number_indent;
4302 int do_trail_white;
4303 int first_par_line = TRUE;
4304 int smd_save;
4305 long count;
4306 int need_set_indent = TRUE; /* set indent of next paragraph */
4307 int force_format = FALSE;
4308 int old_State = State;
4309
4310 /* length of a line to force formatting: 3 * 'tw' */
4311 max_len = comp_textwidth(TRUE) * 3;
4312
4313 /* check for 'q', '2' and '1' in 'formatoptions' */
4314#ifdef FEAT_COMMENTS
4315 do_comments = has_format_option(FO_Q_COMS);
4316#endif
4317 do_second_indent = has_format_option(FO_Q_SECOND);
4318 do_number_indent = has_format_option(FO_Q_NUMBER);
4319 do_trail_white = has_format_option(FO_WHITE_PAR);
4320
4321 /*
4322 * Get info about the previous and current line.
4323 */
4324 if (curwin->w_cursor.lnum > 1)
4325 is_not_par = fmt_check_par(curwin->w_cursor.lnum - 1
4326#ifdef FEAT_COMMENTS
4327 , &leader_len, &leader_flags, do_comments
4328#endif
4329 );
4330 else
4331 is_not_par = TRUE;
4332 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum
4333#ifdef FEAT_COMMENTS
4334 , &next_leader_len, &next_leader_flags, do_comments
4335#endif
4336 );
4337 is_end_par = (is_not_par || next_is_not_par);
4338 if (!is_end_par && do_trail_white)
4339 is_end_par = !ends_in_white(curwin->w_cursor.lnum - 1);
4340
4341 curwin->w_cursor.lnum--;
4342 for (count = line_count; count != 0 && !got_int; --count)
4343 {
4344 /*
4345 * Advance to next paragraph.
4346 */
4347 if (advance)
4348 {
4349 curwin->w_cursor.lnum++;
4350 prev_is_end_par = is_end_par;
4351 is_not_par = next_is_not_par;
4352#ifdef FEAT_COMMENTS
4353 leader_len = next_leader_len;
4354 leader_flags = next_leader_flags;
4355#endif
4356 }
4357
4358 /*
4359 * The last line to be formatted.
4360 */
4361 if (count == 1 || curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4362 {
4363 next_is_not_par = TRUE;
4364#ifdef FEAT_COMMENTS
4365 next_leader_len = 0;
4366 next_leader_flags = NULL;
4367#endif
4368 }
4369 else
4370 {
4371 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum + 1
4372#ifdef FEAT_COMMENTS
4373 , &next_leader_len, &next_leader_flags, do_comments
4374#endif
4375 );
4376 if (do_number_indent)
4377 next_is_start_par =
4378 (get_number_indent(curwin->w_cursor.lnum + 1) > 0);
4379 }
4380 advance = TRUE;
4381 is_end_par = (is_not_par || next_is_not_par || next_is_start_par);
4382 if (!is_end_par && do_trail_white)
4383 is_end_par = !ends_in_white(curwin->w_cursor.lnum);
4384
4385 /*
4386 * Skip lines that are not in a paragraph.
4387 */
4388 if (is_not_par)
4389 {
4390 if (line_count < 0)
4391 break;
4392 }
4393 else
4394 {
4395 /*
4396 * For the first line of a paragraph, check indent of second line.
4397 * Don't do this for comments and empty lines.
4398 */
4399 if (first_par_line
4400 && (do_second_indent || do_number_indent)
4401 && prev_is_end_par
4402 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count
4403#ifdef FEAT_COMMENTS
4404 && leader_len == 0
4405 && next_leader_len == 0
4406#endif
4407 )
4408 {
4409 if (do_second_indent
4410 && !lineempty(curwin->w_cursor.lnum + 1))
4411 second_indent = get_indent_lnum(curwin->w_cursor.lnum + 1);
4412 else if (do_number_indent)
4413 second_indent = get_number_indent(curwin->w_cursor.lnum);
4414 }
4415
4416 /*
4417 * When the comment leader changes, it's the end of the paragraph.
4418 */
4419 if (curwin->w_cursor.lnum >= curbuf->b_ml.ml_line_count
4420#ifdef FEAT_COMMENTS
4421 || !same_leader(curwin->w_cursor.lnum,
4422 leader_len, leader_flags,
4423 next_leader_len, next_leader_flags)
4424#endif
4425 )
4426 is_end_par = TRUE;
4427
4428 /*
4429 * If we have got to the end of a paragraph, or the line is
4430 * getting long, format it.
4431 */
4432 if (is_end_par || force_format)
4433 {
4434 if (need_set_indent)
4435 /* replace indent in first line with minimal number of
4436 * tabs and spaces, according to current options */
4437 (void)set_indent(get_indent(), SIN_CHANGED);
4438
4439 /* put cursor on last non-space */
4440 State = NORMAL; /* don't go past end-of-line */
4441 coladvance((colnr_T)MAXCOL);
4442 while (curwin->w_cursor.col && vim_isspace(gchar_cursor()))
4443 dec_cursor();
4444
4445 /* do the formatting, without 'showmode' */
4446 State = INSERT; /* for open_line() */
4447 smd_save = p_smd;
4448 p_smd = FALSE;
4449 insertchar(NUL, INSCHAR_FORMAT
4450#ifdef FEAT_COMMENTS
4451 + (do_comments ? INSCHAR_DO_COM : 0)
4452#endif
4453 , second_indent);
4454 State = old_State;
4455 p_smd = smd_save;
4456 second_indent = -1;
4457 /* at end of par.: need to set indent of next par. */
4458 need_set_indent = is_end_par;
4459 if (is_end_par)
4460 {
4461 /* When called with a negative line count, break at the
4462 * end of the paragraph. */
4463 if (line_count < 0)
4464 break;
4465 first_par_line = TRUE;
4466 }
4467 force_format = FALSE;
4468 }
4469
4470 /*
4471 * When still in same paragraph, join the lines together. But
4472 * first delete the comment leader from the second line.
4473 */
4474 if (!is_end_par)
4475 {
4476 advance = FALSE;
4477 curwin->w_cursor.lnum++;
4478 curwin->w_cursor.col = 0;
4479 if (line_count < 0 && u_save_cursor() == FAIL)
4480 break;
4481#ifdef FEAT_COMMENTS
4482 (void)del_bytes((long)next_leader_len, FALSE);
4483 if (next_leader_len > 0)
4484 mark_col_adjust(curwin->w_cursor.lnum, (colnr_T)0, 0L,
4485 (long)-next_leader_len);
4486#endif
4487 curwin->w_cursor.lnum--;
4488 if (do_join(TRUE) == FAIL)
4489 {
4490 beep_flush();
4491 break;
4492 }
4493 first_par_line = FALSE;
4494 /* If the line is getting long, format it next time */
4495 if (STRLEN(ml_get_curline()) > (size_t)max_len)
4496 force_format = TRUE;
4497 else
4498 force_format = FALSE;
4499 }
4500 }
4501 line_breakcheck();
4502 }
4503}
4504
4505/*
4506 * Return TRUE if line "lnum" ends in a white character.
4507 */
4508 static int
4509ends_in_white(lnum)
4510 linenr_T lnum;
4511{
4512 char_u *s = ml_get(lnum);
4513 size_t l;
4514
4515 if (*s == NUL)
4516 return FALSE;
4517 /* Don't use STRLEN() inside vim_iswhite(), SAS/C complains: "macro
4518 * invocation may call function multiple times". */
4519 l = STRLEN(s) - 1;
4520 return vim_iswhite(s[l]);
4521}
4522
4523/*
4524 * Blank lines, and lines containing only the comment leader, are left
4525 * untouched by the formatting. The function returns TRUE in this
4526 * case. It also returns TRUE when a line starts with the end of a comment
4527 * ('e' in comment flags), so that this line is skipped, and not joined to the
4528 * previous line. A new paragraph starts after a blank line, or when the
4529 * comment leader changes -- webb.
4530 */
4531#ifdef FEAT_COMMENTS
4532 static int
4533fmt_check_par(lnum, leader_len, leader_flags, do_comments)
4534 linenr_T lnum;
4535 int *leader_len;
4536 char_u **leader_flags;
4537 int do_comments;
4538{
4539 char_u *flags = NULL; /* init for GCC */
4540 char_u *ptr;
4541
4542 ptr = ml_get(lnum);
4543 if (do_comments)
4544 *leader_len = get_leader_len(ptr, leader_flags, FALSE);
4545 else
4546 *leader_len = 0;
4547
4548 if (*leader_len > 0)
4549 {
4550 /*
4551 * Search for 'e' flag in comment leader flags.
4552 */
4553 flags = *leader_flags;
4554 while (*flags && *flags != ':' && *flags != COM_END)
4555 ++flags;
4556 }
4557
4558 return (*skipwhite(ptr + *leader_len) == NUL
4559 || (*leader_len > 0 && *flags == COM_END)
4560 || startPS(lnum, NUL, FALSE));
4561}
4562#else
4563 static int
4564fmt_check_par(lnum)
4565 linenr_T lnum;
4566{
4567 return (*skipwhite(ml_get(lnum)) == NUL || startPS(lnum, NUL, FALSE));
4568}
4569#endif
4570
4571/*
4572 * Return TRUE when a paragraph starts in line "lnum". Return FALSE when the
4573 * previous line is in the same paragraph. Used for auto-formatting.
4574 */
4575 int
4576paragraph_start(lnum)
4577 linenr_T lnum;
4578{
4579 char_u *p;
4580#ifdef FEAT_COMMENTS
4581 int leader_len = 0; /* leader len of current line */
4582 char_u *leader_flags = NULL; /* flags for leader of current line */
4583 int next_leader_len; /* leader len of next line */
4584 char_u *next_leader_flags; /* flags for leader of next line */
4585 int do_comments; /* format comments */
4586#endif
4587
4588 if (lnum <= 1)
4589 return TRUE; /* start of the file */
4590
4591 p = ml_get(lnum - 1);
4592 if (*p == NUL)
4593 return TRUE; /* after empty line */
4594
4595#ifdef FEAT_COMMENTS
4596 do_comments = has_format_option(FO_Q_COMS);
4597#endif
4598 if (fmt_check_par(lnum - 1
4599#ifdef FEAT_COMMENTS
4600 , &leader_len, &leader_flags, do_comments
4601#endif
4602 ))
4603 return TRUE; /* after non-paragraph line */
4604
4605 if (fmt_check_par(lnum
4606#ifdef FEAT_COMMENTS
4607 , &next_leader_len, &next_leader_flags, do_comments
4608#endif
4609 ))
4610 return TRUE; /* "lnum" is not a paragraph line */
4611
4612 if (has_format_option(FO_WHITE_PAR) && !ends_in_white(lnum - 1))
4613 return TRUE; /* missing trailing space in previous line. */
4614
4615 if (has_format_option(FO_Q_NUMBER) && (get_number_indent(lnum) > 0))
4616 return TRUE; /* numbered item starts in "lnum". */
4617
4618#ifdef FEAT_COMMENTS
4619 if (!same_leader(lnum - 1, leader_len, leader_flags,
4620 next_leader_len, next_leader_flags))
4621 return TRUE; /* change of comment leader. */
4622#endif
4623
4624 return FALSE;
4625}
4626
4627#ifdef FEAT_VISUAL
4628/*
4629 * prepare a few things for block mode yank/delete/tilde
4630 *
4631 * for delete:
4632 * - textlen includes the first/last char to be (partly) deleted
4633 * - start/endspaces is the number of columns that are taken by the
4634 * first/last deleted char minus the number of columns that have to be
4635 * deleted. for yank and tilde:
4636 * - textlen includes the first/last char to be wholly yanked
4637 * - start/endspaces is the number of columns of the first/last yanked char
4638 * that are to be yanked.
4639 */
4640 static void
4641block_prep(oap, bdp, lnum, is_del)
4642 oparg_T *oap;
4643 struct block_def *bdp;
4644 linenr_T lnum;
4645 int is_del;
4646{
4647 int incr = 0;
4648 char_u *pend;
4649 char_u *pstart;
4650 char_u *line;
4651 char_u *prev_pstart;
4652 char_u *prev_pend;
4653
4654 bdp->startspaces = 0;
4655 bdp->endspaces = 0;
4656 bdp->textlen = 0;
4657 bdp->start_vcol = 0;
4658 bdp->end_vcol = 0;
4659#ifdef FEAT_VISUALEXTRA
4660 bdp->is_short = FALSE;
4661 bdp->is_oneChar = FALSE;
4662 bdp->pre_whitesp = 0;
4663 bdp->pre_whitesp_c = 0;
4664 bdp->end_char_vcols = 0;
4665#endif
4666 bdp->start_char_vcols = 0;
4667
4668 line = ml_get(lnum);
4669 pstart = line;
4670 prev_pstart = line;
4671 while (bdp->start_vcol < oap->start_vcol && *pstart)
4672 {
4673 /* Count a tab for what it's worth (if list mode not on) */
4674 incr = lbr_chartabsize(pstart, (colnr_T)bdp->start_vcol);
4675 bdp->start_vcol += incr;
4676#ifdef FEAT_VISUALEXTRA
4677 if (vim_iswhite(*pstart))
4678 {
4679 bdp->pre_whitesp += incr;
4680 bdp->pre_whitesp_c++;
4681 }
4682 else
4683 {
4684 bdp->pre_whitesp = 0;
4685 bdp->pre_whitesp_c = 0;
4686 }
4687#endif
4688 prev_pstart = pstart;
Bram Moolenaar1cd871b2004-12-19 22:46:22 +00004689 mb_ptr_adv(pstart);
Bram Moolenaar071d4272004-06-13 20:20:40 +00004690 }
4691 bdp->start_char_vcols = incr;
4692 if (bdp->start_vcol < oap->start_vcol) /* line too short */
4693 {
4694 bdp->end_vcol = bdp->start_vcol;
4695#ifdef FEAT_VISUALEXTRA
4696 bdp->is_short = TRUE;
4697#endif
4698 if (!is_del || oap->op_type == OP_APPEND)
4699 bdp->endspaces = oap->end_vcol - oap->start_vcol + 1;
4700 }
4701 else
4702 {
4703 /* notice: this converts partly selected Multibyte characters to
4704 * spaces, too. */
4705 bdp->startspaces = bdp->start_vcol - oap->start_vcol;
4706 if (is_del && bdp->startspaces)
4707 bdp->startspaces = bdp->start_char_vcols - bdp->startspaces;
4708 pend = pstart;
4709 bdp->end_vcol = bdp->start_vcol;
4710 if (bdp->end_vcol > oap->end_vcol) /* it's all in one character */
4711 {
4712#ifdef FEAT_VISUALEXTRA
4713 bdp->is_oneChar = TRUE;
4714#endif
4715 if (oap->op_type == OP_INSERT)
4716 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces;
4717 else if (oap->op_type == OP_APPEND)
4718 {
4719 bdp->startspaces += oap->end_vcol - oap->start_vcol + 1;
4720 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces;
4721 }
4722 else
4723 {
4724 bdp->startspaces = oap->end_vcol - oap->start_vcol + 1;
4725 if (is_del && oap->op_type != OP_LSHIFT)
4726 {
4727 /* just putting the sum of those two into
4728 * bdp->startspaces doesn't work for Visual replace,
4729 * so we have to split the tab in two */
4730 bdp->startspaces = bdp->start_char_vcols
4731 - (bdp->start_vcol - oap->start_vcol);
4732 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1;
4733 }
4734 }
4735 }
4736 else
4737 {
4738 prev_pend = pend;
4739 while (bdp->end_vcol <= oap->end_vcol && *pend != NUL)
4740 {
4741 /* Count a tab for what it's worth (if list mode not on) */
4742 prev_pend = pend;
4743 incr = lbr_chartabsize_adv(&pend, (colnr_T)bdp->end_vcol);
4744 bdp->end_vcol += incr;
4745 }
4746 if (bdp->end_vcol <= oap->end_vcol
4747 && (!is_del
4748 || oap->op_type == OP_APPEND
4749 || oap->op_type == OP_REPLACE)) /* line too short */
4750 {
4751#ifdef FEAT_VISUALEXTRA
4752 bdp->is_short = TRUE;
4753#endif
4754 /* Alternative: include spaces to fill up the block.
4755 * Disadvantage: can lead to trailing spaces when the line is
4756 * short where the text is put */
4757 /* if (!is_del || oap->op_type == OP_APPEND) */
4758 if (oap->op_type == OP_APPEND || virtual_op)
4759 bdp->endspaces = oap->end_vcol - bdp->end_vcol
4760 + oap->inclusive;
4761 else
4762 bdp->endspaces = 0; /* replace doesn't add characters */
4763 }
4764 else if (bdp->end_vcol > oap->end_vcol)
4765 {
4766 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1;
4767 if (!is_del && bdp->endspaces)
4768 {
4769 bdp->endspaces = incr - bdp->endspaces;
4770 if (pend != pstart)
4771 pend = prev_pend;
4772 }
4773 }
4774 }
4775#ifdef FEAT_VISUALEXTRA
4776 bdp->end_char_vcols = incr;
4777#endif
4778 if (is_del && bdp->startspaces)
4779 pstart = prev_pstart;
4780 bdp->textlen = (int)(pend - pstart);
4781 }
4782 bdp->textcol = (colnr_T) (pstart - line);
4783 bdp->textstart = pstart;
4784}
4785#endif /* FEAT_VISUAL */
4786
4787#ifdef FEAT_RIGHTLEFT
4788static void reverse_line __ARGS((char_u *s));
4789
4790 static void
4791reverse_line(s)
4792 char_u *s;
4793{
4794 int i, j;
4795 char_u c;
4796
4797 if ((i = (int)STRLEN(s) - 1) <= 0)
4798 return;
4799
4800 curwin->w_cursor.col = i - curwin->w_cursor.col;
4801 for (j = 0; j < i; j++, i--)
4802 {
4803 c = s[i]; s[i] = s[j]; s[j] = c;
4804 }
4805}
4806
4807# define RLADDSUBFIX(ptr) if (curwin->w_p_rl) reverse_line(ptr);
4808#else
4809# define RLADDSUBFIX(ptr)
4810#endif
4811
4812/*
4813 * add or subtract 'Prenum1' from a number in a line
4814 * 'command' is CTRL-A for add, CTRL-X for subtract
4815 *
4816 * return FAIL for failure, OK otherwise
4817 */
4818 int
4819do_addsub(command, Prenum1)
4820 int command;
4821 linenr_T Prenum1;
4822{
4823 int col;
4824 char_u *buf1;
4825 char_u buf2[NUMBUFLEN];
4826 int hex; /* 'X' or 'x': hex; '0': octal */
4827 static int hexupper = FALSE; /* 0xABC */
4828 long_u n;
4829 long_u oldn;
4830 char_u *ptr;
4831 int c;
4832 int length = 0; /* character length of the number */
4833 int todel;
4834 int dohex;
4835 int dooct;
4836 int doalp;
4837 int firstdigit;
4838 int negative;
4839 int subtract;
4840
4841 dohex = (vim_strchr(curbuf->b_p_nf, 'x') != NULL); /* "heX" */
4842 dooct = (vim_strchr(curbuf->b_p_nf, 'o') != NULL); /* "Octal" */
4843 doalp = (vim_strchr(curbuf->b_p_nf, 'p') != NULL); /* "alPha" */
4844
4845 ptr = ml_get_curline();
4846 RLADDSUBFIX(ptr);
4847
4848 /*
4849 * First check if we are on a hexadecimal number, after the "0x".
4850 */
4851 col = curwin->w_cursor.col;
4852 if (dohex)
4853 while (col > 0 && vim_isxdigit(ptr[col]))
4854 --col;
4855 if ( dohex
4856 && col > 0
4857 && (ptr[col] == 'X'
4858 || ptr[col] == 'x')
4859 && ptr[col - 1] == '0'
4860 && vim_isxdigit(ptr[col + 1]))
4861 {
4862 /*
4863 * Found hexadecimal number, move to its start.
4864 */
4865 --col;
4866 }
4867 else
4868 {
4869 /*
4870 * Search forward and then backward to find the start of number.
4871 */
4872 col = curwin->w_cursor.col;
4873
4874 while (ptr[col] != NUL
4875 && !vim_isdigit(ptr[col])
4876 && !(doalp && ASCII_ISALPHA(ptr[col])))
4877 ++col;
4878
4879 while (col > 0
4880 && vim_isdigit(ptr[col - 1])
4881 && !(doalp && ASCII_ISALPHA(ptr[col])))
4882 --col;
4883 }
4884
4885 /* truncate to max length of a number */
4886 if (length >= NUMBUFLEN - 1)
4887 length = NUMBUFLEN - 2;
4888
4889 /*
4890 * If a number was found, and saving for undo works, replace the number.
4891 */
4892 firstdigit = ptr[col];
4893 RLADDSUBFIX(ptr);
4894 if ((!VIM_ISDIGIT(firstdigit) && !(doalp && ASCII_ISALPHA(firstdigit)))
4895 || u_save_cursor() != OK)
4896 {
4897 beep_flush();
4898 return FAIL;
4899 }
4900
4901 /* get ptr again, because u_save() may have changed it */
4902 ptr = ml_get_curline();
4903 RLADDSUBFIX(ptr);
4904
4905 if (doalp && ASCII_ISALPHA(firstdigit))
4906 {
4907 /* decrement or increment alphabetic character */
4908 if (command == Ctrl_X)
4909 {
4910 if (CharOrd(firstdigit) < Prenum1)
4911 {
4912 if (isupper(firstdigit))
4913 firstdigit = 'A';
4914 else
4915 firstdigit = 'a';
4916 }
4917 else
4918#ifdef EBCDIC
4919 firstdigit = EBCDIC_CHAR_ADD(firstdigit, -Prenum1);
4920#else
4921 firstdigit -= Prenum1;
4922#endif
4923 }
4924 else
4925 {
4926 if (26 - CharOrd(firstdigit) - 1 < Prenum1)
4927 {
4928 if (isupper(firstdigit))
4929 firstdigit = 'Z';
4930 else
4931 firstdigit = 'z';
4932 }
4933 else
4934#ifdef EBCDIC
4935 firstdigit = EBCDIC_CHAR_ADD(firstdigit, Prenum1);
4936#else
4937 firstdigit += Prenum1;
4938#endif
4939 }
4940 curwin->w_cursor.col = col;
4941 (void)del_char(FALSE);
4942 ins_char(firstdigit);
4943 }
4944 else
4945 {
4946 negative = FALSE;
4947 if (col > 0 && ptr[col - 1] == '-') /* negative number */
4948 {
4949 --col;
4950 negative = TRUE;
4951 }
4952
4953 /* get the number value (unsigned) */
4954 vim_str2nr(ptr + col, &hex, &length, dooct, dohex, NULL, &n);
4955
4956 /* ignore leading '-' for hex and octal numbers */
4957 if (hex && negative)
4958 {
4959 ++col;
4960 --length;
4961 negative = FALSE;
4962 }
4963
4964 /* add or subtract */
4965 subtract = FALSE;
4966 if (command == Ctrl_X)
4967 subtract ^= TRUE;
4968 if (negative)
4969 subtract ^= TRUE;
4970
4971 oldn = n;
4972 if (subtract)
4973 n -= (unsigned long)Prenum1;
4974 else
4975 n += (unsigned long)Prenum1;
4976
4977 /* handle wraparound for decimal numbers */
4978 if (!hex)
4979 {
4980 if (subtract)
4981 {
4982 if (n > oldn)
4983 {
4984 n = 1 + (n ^ (unsigned long)-1);
4985 negative ^= TRUE;
4986 }
4987 }
4988 else /* add */
4989 {
4990 if (n < oldn)
4991 {
4992 n = (n ^ (unsigned long)-1);
4993 negative ^= TRUE;
4994 }
4995 }
4996 if (n == 0)
4997 negative = FALSE;
4998 }
4999
5000 /*
5001 * Delete the old number.
5002 */
5003 curwin->w_cursor.col = col;
5004 todel = length;
5005 c = gchar_cursor();
5006 /*
5007 * Don't include the '-' in the length, only the length of the part
5008 * after it is kept the same.
5009 */
5010 if (c == '-')
5011 --length;
5012 while (todel-- > 0)
5013 {
5014 if (c < 0x100 && isalpha(c))
5015 {
5016 if (isupper(c))
5017 hexupper = TRUE;
5018 else
5019 hexupper = FALSE;
5020 }
5021 /* del_char() will mark line needing displaying */
5022 (void)del_char(FALSE);
5023 c = gchar_cursor();
5024 }
5025
5026 /*
5027 * Prepare the leading characters in buf1[].
5028 * When there are many leading zeros it could be very long. Allocate
5029 * a bit too much.
5030 */
5031 buf1 = alloc((unsigned)length + NUMBUFLEN);
5032 if (buf1 == NULL)
5033 return FAIL;
5034 ptr = buf1;
5035 if (negative)
5036 {
5037 *ptr++ = '-';
5038 }
5039 if (hex)
5040 {
5041 *ptr++ = '0';
5042 --length;
5043 }
5044 if (hex == 'x' || hex == 'X')
5045 {
5046 *ptr++ = hex;
5047 --length;
5048 }
5049
5050 /*
5051 * Put the number characters in buf2[].
5052 */
5053 if (hex == 0)
5054 sprintf((char *)buf2, "%lu", n);
5055 else if (hex == '0')
5056 sprintf((char *)buf2, "%lo", n);
5057 else if (hex && hexupper)
5058 sprintf((char *)buf2, "%lX", n);
5059 else
5060 sprintf((char *)buf2, "%lx", n);
5061 length -= (int)STRLEN(buf2);
5062
5063 /*
Bram Moolenaar1cd871b2004-12-19 22:46:22 +00005064 * Adjust number of zeros to the new number of digits, so the
5065 * total length of the number remains the same.
5066 * Don't do this when
5067 * the result may look like an octal number.
Bram Moolenaar071d4272004-06-13 20:20:40 +00005068 */
Bram Moolenaar1cd871b2004-12-19 22:46:22 +00005069 if (firstdigit == '0' && !(dooct && hex == 0))
Bram Moolenaar071d4272004-06-13 20:20:40 +00005070 while (length-- > 0)
5071 *ptr++ = '0';
5072 *ptr = NUL;
5073 STRCAT(buf1, buf2);
5074 ins_str(buf1); /* insert the new number */
5075 vim_free(buf1);
5076 }
5077 --curwin->w_cursor.col;
5078 curwin->w_set_curswant = TRUE;
5079#ifdef FEAT_RIGHTLEFT
5080 ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
5081 RLADDSUBFIX(ptr);
5082#endif
5083 return OK;
5084}
5085
5086#ifdef FEAT_VIMINFO
5087 int
5088read_viminfo_register(virp, force)
5089 vir_T *virp;
5090 int force;
5091{
5092 int eof;
5093 int do_it = TRUE;
5094 int size;
5095 int limit;
5096 int i;
5097 int set_prev = FALSE;
5098 char_u *str;
5099 char_u **array = NULL;
5100
5101 /* We only get here (hopefully) if line[0] == '"' */
5102 str = virp->vir_line + 1;
5103 if (*str == '"')
5104 {
5105 set_prev = TRUE;
5106 str++;
5107 }
5108 if (!ASCII_ISALNUM(*str) && *str != '-')
5109 {
5110 if (viminfo_error("E577: ", _("Illegal register name"), virp->vir_line))
5111 return TRUE; /* too many errors, pretend end-of-file */
5112 do_it = FALSE;
5113 }
5114 get_yank_register(*str++, FALSE);
5115 if (!force && y_current->y_array != NULL)
5116 do_it = FALSE;
5117 size = 0;
5118 limit = 100; /* Optimized for registers containing <= 100 lines */
5119 if (do_it)
5120 {
5121 if (set_prev)
5122 y_previous = y_current;
5123 vim_free(y_current->y_array);
5124 array = y_current->y_array =
5125 (char_u **)alloc((unsigned)(limit * sizeof(char_u *)));
5126 str = skipwhite(str);
5127 if (STRNCMP(str, "CHAR", 4) == 0)
5128 y_current->y_type = MCHAR;
5129#ifdef FEAT_VISUAL
5130 else if (STRNCMP(str, "BLOCK", 5) == 0)
5131 y_current->y_type = MBLOCK;
5132#endif
5133 else
5134 y_current->y_type = MLINE;
5135 /* get the block width; if it's missing we get a zero, which is OK */
5136 str = skipwhite(skiptowhite(str));
5137#ifdef FEAT_VISUAL
5138 y_current->y_width = getdigits(&str);
5139#else
5140 (void)getdigits(&str);
5141#endif
5142 }
5143
5144 while (!(eof = viminfo_readline(virp))
5145 && (virp->vir_line[0] == TAB || virp->vir_line[0] == '<'))
5146 {
5147 if (do_it)
5148 {
5149 if (size >= limit)
5150 {
5151 y_current->y_array = (char_u **)
5152 alloc((unsigned)(limit * 2 * sizeof(char_u *)));
5153 for (i = 0; i < limit; i++)
5154 y_current->y_array[i] = array[i];
5155 vim_free(array);
5156 limit *= 2;
5157 array = y_current->y_array;
5158 }
5159 str = viminfo_readstring(virp, 1, TRUE);
5160 if (str != NULL)
5161 array[size++] = str;
5162 else
5163 do_it = FALSE;
5164 }
5165 }
5166 if (do_it)
5167 {
5168 if (size == 0)
5169 {
5170 vim_free(array);
5171 y_current->y_array = NULL;
5172 }
5173 else if (size < limit)
5174 {
5175 y_current->y_array =
5176 (char_u **)alloc((unsigned)(size * sizeof(char_u *)));
5177 for (i = 0; i < size; i++)
5178 y_current->y_array[i] = array[i];
5179 vim_free(array);
5180 }
5181 y_current->y_size = size;
5182 }
5183 return eof;
5184}
5185
5186 void
5187write_viminfo_registers(fp)
5188 FILE *fp;
5189{
5190 int i, j;
5191 char_u *type;
5192 char_u c;
5193 int num_lines;
5194 int max_num_lines;
5195 int max_kbyte;
5196 long len;
5197
5198 fprintf(fp, _("\n# Registers:\n"));
5199
5200 /* Get '<' value, use old '"' value if '<' is not found. */
5201 max_num_lines = get_viminfo_parameter('<');
5202 if (max_num_lines < 0)
5203 max_num_lines = get_viminfo_parameter('"');
5204 if (max_num_lines == 0)
5205 return;
5206 max_kbyte = get_viminfo_parameter('s');
5207 if (max_kbyte == 0)
5208 return;
5209 for (i = 0; i < NUM_REGISTERS; i++)
5210 {
5211 if (y_regs[i].y_array == NULL)
5212 continue;
5213#ifdef FEAT_CLIPBOARD
5214 /* Skip '*'/'+' register, we don't want them back next time */
5215 if (i == STAR_REGISTER || i == PLUS_REGISTER)
5216 continue;
5217#endif
5218#ifdef FEAT_DND
5219 /* Neither do we want the '~' register */
5220 if (i == TILDE_REGISTER)
5221 continue;
5222#endif
Bram Moolenaard7ee7ce2005-01-03 21:02:03 +00005223 /* Skip empty registers. */
Bram Moolenaar071d4272004-06-13 20:20:40 +00005224 num_lines = y_regs[i].y_size;
Bram Moolenaard7ee7ce2005-01-03 21:02:03 +00005225 if (num_lines == 0
5226 || (num_lines == 1 && y_regs[i].y_type == MCHAR
5227 && STRLEN(y_regs[i].y_array[0]) == 0))
5228 continue;
5229
Bram Moolenaar071d4272004-06-13 20:20:40 +00005230 if (max_kbyte > 0)
5231 {
5232 /* Skip register if there is more text than the maximum size. */
5233 len = 0;
5234 for (j = 0; j < num_lines; j++)
5235 len += STRLEN(y_regs[i].y_array[j]) + 1L;
5236 if (len > (long)max_kbyte * 1024L)
5237 continue;
5238 }
5239
5240 switch (y_regs[i].y_type)
5241 {
5242 case MLINE:
5243 type = (char_u *)"LINE";
5244 break;
5245 case MCHAR:
5246 type = (char_u *)"CHAR";
5247 break;
5248#ifdef FEAT_VISUAL
5249 case MBLOCK:
5250 type = (char_u *)"BLOCK";
5251 break;
5252#endif
5253 default:
5254 sprintf((char *)IObuff, _("E574: Unknown register type %d"),
Bram Moolenaar555b2802005-05-19 21:08:39 +00005255 y_regs[i].y_type);
Bram Moolenaar071d4272004-06-13 20:20:40 +00005256 emsg(IObuff);
5257 type = (char_u *)"LINE";
5258 break;
5259 }
5260 if (y_previous == &y_regs[i])
5261 fprintf(fp, "\"");
5262 c = get_register_name(i);
5263 fprintf(fp, "\"%c\t%s\t%d\n", c, type,
5264#ifdef FEAT_VISUAL
5265 (int)y_regs[i].y_width
5266#else
5267 0
5268#endif
5269 );
5270
5271 /* If max_num_lines < 0, then we save ALL the lines in the register */
5272 if (max_num_lines > 0 && num_lines > max_num_lines)
5273 num_lines = max_num_lines;
5274 for (j = 0; j < num_lines; j++)
5275 {
5276 putc('\t', fp);
5277 viminfo_writestring(fp, y_regs[i].y_array[j]);
5278 }
5279 }
5280}
5281#endif /* FEAT_VIMINFO */
5282
5283#if defined(FEAT_CLIPBOARD) || defined(PROTO)
5284/*
5285 * SELECTION / PRIMARY ('*')
5286 *
5287 * Text selection stuff that uses the GUI selection register '*'. When using a
5288 * GUI this may be text from another window, otherwise it is the last text we
5289 * had highlighted with VIsual mode. With mouse support, clicking the middle
5290 * button performs the paste, otherwise you will need to do <"*p>. "
5291 * If not under X, it is synonymous with the clipboard register '+'.
5292 *
5293 * X CLIPBOARD ('+')
5294 *
5295 * Text selection stuff that uses the GUI clipboard register '+'.
5296 * Under X, this matches the standard cut/paste buffer CLIPBOARD selection.
5297 * It will be used for unnamed cut/pasting is 'clipboard' contains "unnamed",
5298 * otherwise you will need to do <"+p>. "
5299 * If not under X, it is synonymous with the selection register '*'.
5300 */
5301
5302/*
5303 * Routine to export any final X selection we had to the environment
5304 * so that the text is still available after vim has exited. X selections
5305 * only exist while the owning application exists, so we write to the
5306 * permanent (while X runs) store CUT_BUFFER0.
5307 * Dump the CLIPBOARD selection if we own it (it's logically the more
5308 * 'permanent' of the two), otherwise the PRIMARY one.
5309 * For now, use a hard-coded sanity limit of 1Mb of data.
5310 */
5311#if defined(FEAT_X11) && defined(FEAT_CLIPBOARD)
5312 void
5313x11_export_final_selection()
5314{
5315 Display *dpy;
5316 char_u *str = NULL;
5317 long_u len = 0;
5318 int motion_type = -1;
5319
5320# ifdef FEAT_GUI
5321 if (gui.in_use)
5322 dpy = X_DISPLAY;
5323 else
5324# endif
5325# ifdef FEAT_XCLIPBOARD
5326 dpy = xterm_dpy;
5327# else
5328 return;
5329# endif
5330
5331 /* Get selection to export */
5332 if (clip_plus.owned)
5333 motion_type = clip_convert_selection(&str, &len, &clip_plus);
5334 else if (clip_star.owned)
5335 motion_type = clip_convert_selection(&str, &len, &clip_star);
5336
5337 /* Check it's OK */
5338 if (dpy != NULL && str != NULL && motion_type >= 0
5339 && len < 1024*1024 && len > 0)
5340 {
5341 XStoreBuffer(dpy, (char *)str, (int)len, 0);
5342 XFlush(dpy);
5343 }
5344
5345 vim_free(str);
5346}
5347#endif
5348
5349 void
5350clip_free_selection(cbd)
5351 VimClipboard *cbd;
5352{
5353 struct yankreg *y_ptr = y_current;
5354
5355 if (cbd == &clip_plus)
5356 y_current = &y_regs[PLUS_REGISTER];
5357 else
5358 y_current = &y_regs[STAR_REGISTER];
5359 free_yank_all();
5360 y_current->y_size = 0;
5361 y_current = y_ptr;
5362}
5363
5364/*
5365 * Get the selected text and put it in the gui selection register '*' or '+'.
5366 */
5367 void
5368clip_get_selection(cbd)
5369 VimClipboard *cbd;
5370{
5371 struct yankreg *old_y_previous, *old_y_current;
5372 pos_T old_cursor;
5373#ifdef FEAT_VISUAL
5374 pos_T old_visual;
5375 int old_visual_mode;
5376#endif
5377 colnr_T old_curswant;
5378 int old_set_curswant;
5379 pos_T old_op_start, old_op_end;
5380 oparg_T oa;
5381 cmdarg_T ca;
5382
5383 if (cbd->owned)
5384 {
5385 if ((cbd == &clip_plus && y_regs[PLUS_REGISTER].y_array != NULL)
5386 || (cbd == &clip_star && y_regs[STAR_REGISTER].y_array != NULL))
5387 return;
5388
5389 /* Get the text between clip_star.start & clip_star.end */
5390 old_y_previous = y_previous;
5391 old_y_current = y_current;
5392 old_cursor = curwin->w_cursor;
5393 old_curswant = curwin->w_curswant;
5394 old_set_curswant = curwin->w_set_curswant;
5395 old_op_start = curbuf->b_op_start;
5396 old_op_end = curbuf->b_op_end;
5397#ifdef FEAT_VISUAL
5398 old_visual = VIsual;
5399 old_visual_mode = VIsual_mode;
5400#endif
5401 clear_oparg(&oa);
5402 oa.regname = (cbd == &clip_plus ? '+' : '*');
5403 oa.op_type = OP_YANK;
5404 vim_memset(&ca, 0, sizeof(ca));
5405 ca.oap = &oa;
5406 ca.cmdchar = 'y';
5407 ca.count1 = 1;
5408 ca.retval = CA_NO_ADJ_OP_END;
5409 do_pending_operator(&ca, 0, TRUE);
5410 y_previous = old_y_previous;
5411 y_current = old_y_current;
5412 curwin->w_cursor = old_cursor;
5413 curwin->w_curswant = old_curswant;
5414 curwin->w_set_curswant = old_set_curswant;
5415 curbuf->b_op_start = old_op_start;
5416 curbuf->b_op_end = old_op_end;
5417#ifdef FEAT_VISUAL
5418 VIsual = old_visual;
5419 VIsual_mode = old_visual_mode;
5420#endif
5421 }
5422 else
5423 {
5424 clip_free_selection(cbd);
5425
5426 /* Try to get selected text from another window */
5427 clip_gen_request_selection(cbd);
5428 }
5429}
5430
5431/* Convert from the GUI selection string into the '*'/'+' register */
5432 void
5433clip_yank_selection(type, str, len, cbd)
5434 int type;
5435 char_u *str;
5436 long len;
5437 VimClipboard *cbd;
5438{
5439 struct yankreg *y_ptr;
5440
5441 if (cbd == &clip_plus)
5442 y_ptr = &y_regs[PLUS_REGISTER];
5443 else
5444 y_ptr = &y_regs[STAR_REGISTER];
5445
5446 clip_free_selection(cbd);
5447
5448 str_to_reg(y_ptr, type, str, len, 0L);
5449}
5450
5451/*
5452 * Convert the '*'/'+' register into a GUI selection string returned in *str
5453 * with length *len.
5454 * Returns the motion type, or -1 for failure.
5455 */
5456 int
5457clip_convert_selection(str, len, cbd)
5458 char_u **str;
5459 long_u *len;
5460 VimClipboard *cbd;
5461{
5462 char_u *p;
5463 int lnum;
5464 int i, j;
5465 int_u eolsize;
5466 struct yankreg *y_ptr;
5467
5468 if (cbd == &clip_plus)
5469 y_ptr = &y_regs[PLUS_REGISTER];
5470 else
5471 y_ptr = &y_regs[STAR_REGISTER];
5472
5473#ifdef USE_CRNL
5474 eolsize = 2;
5475#else
5476 eolsize = 1;
5477#endif
5478
5479 *str = NULL;
5480 *len = 0;
5481 if (y_ptr->y_array == NULL)
5482 return -1;
5483
5484 for (i = 0; i < y_ptr->y_size; i++)
5485 *len += (long_u)STRLEN(y_ptr->y_array[i]) + eolsize;
5486
5487 /*
5488 * Don't want newline character at end of last line if we're in MCHAR mode.
5489 */
5490 if (y_ptr->y_type == MCHAR && *len >= eolsize)
5491 *len -= eolsize;
5492
5493 p = *str = lalloc(*len + 1, TRUE); /* add one to avoid zero */
5494 if (p == NULL)
5495 return -1;
5496 lnum = 0;
5497 for (i = 0, j = 0; i < (int)*len; i++, j++)
5498 {
5499 if (y_ptr->y_array[lnum][j] == '\n')
5500 p[i] = NUL;
5501 else if (y_ptr->y_array[lnum][j] == NUL)
5502 {
5503#ifdef USE_CRNL
5504 p[i++] = '\r';
5505#endif
5506#ifdef USE_CR
5507 p[i] = '\r';
5508#else
5509 p[i] = '\n';
5510#endif
5511 lnum++;
5512 j = -1;
5513 }
5514 else
5515 p[i] = y_ptr->y_array[lnum][j];
5516 }
5517 return y_ptr->y_type;
5518}
5519
5520
5521# if defined(FEAT_VISUAL) || defined(FEAT_EVAL)
5522/*
5523 * If we have written to a clipboard register, send the text to the clipboard.
5524 */
5525 static void
5526may_set_selection()
5527{
5528 if (y_current == &(y_regs[STAR_REGISTER]) && clip_star.available)
5529 {
5530 clip_own_selection(&clip_star);
5531 clip_gen_set_selection(&clip_star);
5532 }
5533 else if (y_current == &(y_regs[PLUS_REGISTER]) && clip_plus.available)
5534 {
5535 clip_own_selection(&clip_plus);
5536 clip_gen_set_selection(&clip_plus);
5537 }
5538}
5539# endif
5540
5541#endif /* FEAT_CLIPBOARD || PROTO */
5542
5543
5544#if defined(FEAT_DND) || defined(PROTO)
5545/*
5546 * Replace the contents of the '~' register with str.
5547 */
5548 void
5549dnd_yank_drag_data(str, len)
5550 char_u *str;
5551 long len;
5552{
5553 struct yankreg *curr;
5554
5555 curr = y_current;
5556 y_current = &y_regs[TILDE_REGISTER];
5557 free_yank_all();
5558 str_to_reg(y_current, MCHAR, str, len, 0L);
5559 y_current = curr;
5560}
5561#endif
5562
5563
5564#if defined(FEAT_EVAL) || defined(PROTO)
5565/*
5566 * Return the type of a register.
5567 * Used for getregtype()
5568 * Returns MAUTO for error.
5569 */
5570 char_u
5571get_reg_type(regname, reglen)
5572 int regname;
5573 long *reglen;
5574{
5575 switch (regname)
5576 {
5577 case '%': /* file name */
5578 case '#': /* alternate file name */
5579 case '=': /* expression */
5580 case ':': /* last command line */
5581 case '/': /* last search-pattern */
5582 case '.': /* last inserted text */
5583#ifdef FEAT_SEARCHPATH
5584 case Ctrl_F: /* Filename under cursor */
5585 case Ctrl_P: /* Path under cursor, expand via "path" */
5586#endif
5587 case Ctrl_W: /* word under cursor */
5588 case Ctrl_A: /* WORD (mnemonic All) under cursor */
5589 case '_': /* black hole: always empty */
5590 return MCHAR;
5591 }
5592
5593#ifdef FEAT_CLIPBOARD
5594 regname = may_get_selection(regname);
5595#endif
5596
5597 /* Should we check for a valid name? */
5598 get_yank_register(regname, FALSE);
5599
5600 if (y_current->y_array != NULL)
5601 {
5602#ifdef FEAT_VISUAL
5603 if (reglen != NULL && y_current->y_type == MBLOCK)
5604 *reglen = y_current->y_width;
5605#endif
5606 return y_current->y_type;
5607 }
5608 return MAUTO;
5609}
5610
5611/*
5612 * Return the contents of a register as a single allocated string.
5613 * Used for "@r" in expressions and for getreg().
5614 * Returns NULL for error.
5615 */
5616 char_u *
Bram Moolenaarde934d72005-05-22 22:09:40 +00005617get_reg_contents(regname, allowexpr, expr_src)
Bram Moolenaar071d4272004-06-13 20:20:40 +00005618 int regname;
Bram Moolenaarde934d72005-05-22 22:09:40 +00005619 int allowexpr; /* allow "=" register */
5620 int expr_src; /* get expression for "=" register */
Bram Moolenaar071d4272004-06-13 20:20:40 +00005621{
5622 long i;
5623 char_u *retval;
5624 int allocated;
5625 long len;
5626
5627 /* Don't allow using an expression register inside an expression */
5628 if (regname == '=')
5629 {
5630 if (allowexpr)
Bram Moolenaarde934d72005-05-22 22:09:40 +00005631 {
5632 if (expr_src)
5633 return get_expr_line_src();
Bram Moolenaar071d4272004-06-13 20:20:40 +00005634 return get_expr_line();
Bram Moolenaarde934d72005-05-22 22:09:40 +00005635 }
Bram Moolenaar071d4272004-06-13 20:20:40 +00005636 return NULL;
5637 }
5638
5639 if (regname == '@') /* "@@" is used for unnamed register */
5640 regname = '"';
5641
5642 /* check for valid regname */
5643 if (regname != NUL && !valid_yank_reg(regname, FALSE))
5644 return NULL;
5645
5646#ifdef FEAT_CLIPBOARD
5647 regname = may_get_selection(regname);
5648#endif
5649
5650 if (get_spec_reg(regname, &retval, &allocated, FALSE))
5651 {
5652 if (retval == NULL)
5653 return NULL;
5654 if (!allocated)
5655 retval = vim_strsave(retval);
5656 return retval;
5657 }
5658
5659 get_yank_register(regname, FALSE);
5660 if (y_current->y_array == NULL)
5661 return NULL;
5662
5663 /*
5664 * Compute length of resulting string.
5665 */
5666 len = 0;
5667 for (i = 0; i < y_current->y_size; ++i)
5668 {
5669 len += (long)STRLEN(y_current->y_array[i]);
5670 /*
5671 * Insert a newline between lines and after last line if
5672 * y_type is MLINE.
5673 */
5674 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
5675 ++len;
5676 }
5677
5678 retval = lalloc(len + 1, TRUE);
5679
5680 /*
5681 * Copy the lines of the yank register into the string.
5682 */
5683 if (retval != NULL)
5684 {
5685 len = 0;
5686 for (i = 0; i < y_current->y_size; ++i)
5687 {
5688 STRCPY(retval + len, y_current->y_array[i]);
5689 len += (long)STRLEN(retval + len);
5690
5691 /*
5692 * Insert a NL between lines and after the last line if y_type is
5693 * MLINE.
5694 */
5695 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
5696 retval[len++] = '\n';
5697 }
5698 retval[len] = NUL;
5699 }
5700
5701 return retval;
5702}
5703
5704/*
5705 * Store string "str" in register "name".
5706 * "maxlen" is the maximum number of bytes to use, -1 for all bytes.
5707 * If "must_append" is TRUE, always append to the register. Otherwise append
5708 * if "name" is an uppercase letter.
5709 * Note: "maxlen" and "must_append" don't work for the "/" register.
5710 * Careful: 'str' is modified, you may have to use a copy!
5711 * If "str" ends in '\n' or '\r', use linewise, otherwise use characterwise.
5712 */
5713 void
5714write_reg_contents(name, str, maxlen, must_append)
5715 int name;
5716 char_u *str;
5717 int maxlen;
5718 int must_append;
5719{
5720 write_reg_contents_ex(name, str, maxlen, must_append, MAUTO, 0L);
5721}
5722
5723 void
5724write_reg_contents_ex(name, str, maxlen, must_append, yank_type, block_len)
5725 int name;
5726 char_u *str;
5727 int maxlen;
5728 int must_append;
5729 int yank_type;
5730 long block_len;
5731{
5732 struct yankreg *old_y_previous, *old_y_current;
5733 long len;
5734
Bram Moolenaare7566042005-06-17 22:00:15 +00005735 if (maxlen >= 0)
5736 len = maxlen;
5737 else
5738 len = (long)STRLEN(str);
5739
Bram Moolenaar071d4272004-06-13 20:20:40 +00005740 /* Special case: '/' search pattern */
5741 if (name == '/')
5742 {
5743 set_last_search_pat(str, RE_SEARCH, TRUE, TRUE);
5744 return;
5745 }
5746
Bram Moolenaare7566042005-06-17 22:00:15 +00005747#ifdef FEAT_EVAL
5748 if (name == '=')
5749 {
5750 char_u *p, *s;
5751
5752 p = vim_strnsave(str, (int)len);
5753 if (p == NULL)
5754 return;
5755 if (must_append)
5756 {
5757 s = concat_str(get_expr_line_src(), p);
5758 vim_free(p);
5759 p = s;
5760
5761 }
5762 set_expr_line(p);
5763 return;
5764 }
5765#endif
5766
Bram Moolenaar071d4272004-06-13 20:20:40 +00005767 if (!valid_yank_reg(name, TRUE)) /* check for valid reg name */
5768 {
Bram Moolenaar26a60b42005-02-22 08:49:11 +00005769 emsg_invreg(name);
Bram Moolenaar071d4272004-06-13 20:20:40 +00005770 return;
5771 }
5772
5773 if (name == '_') /* black hole: nothing to do */
5774 return;
5775
5776 /* Don't want to change the current (unnamed) register */
5777 old_y_previous = y_previous;
5778 old_y_current = y_current;
5779
5780 get_yank_register(name, TRUE);
5781 if (!y_append && !must_append)
5782 free_yank_all();
Bram Moolenaar071d4272004-06-13 20:20:40 +00005783#ifndef FEAT_VISUAL
5784 /* Just in case - make sure we don't use MBLOCK */
5785 if (yank_type == MBLOCK)
5786 yank_type = MAUTO;
5787#endif
5788 if (yank_type == MAUTO)
5789 yank_type = ((len > 0 && (str[len - 1] == '\n' || str[len - 1] == '\r'))
5790 ? MLINE : MCHAR);
5791 str_to_reg(y_current, yank_type, str, len, block_len);
5792
5793# ifdef FEAT_CLIPBOARD
5794 /* Send text of clipboard register to the clipboard. */
5795 may_set_selection();
5796# endif
5797
5798 /* ':let @" = "val"' should change the meaning of the "" register */
5799 if (name != '"')
5800 y_previous = old_y_previous;
5801 y_current = old_y_current;
5802}
5803#endif /* FEAT_EVAL */
5804
5805#if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
5806/*
5807 * Put a string into a register. When the register is not empty, the string
5808 * is appended.
5809 */
5810 static void
5811str_to_reg(y_ptr, type, str, len, blocklen)
5812 struct yankreg *y_ptr; /* pointer to yank register */
5813 int type; /* MCHAR, MLINE or MBLOCK */
5814 char_u *str; /* string to put in register */
5815 long len; /* length of string */
5816 long blocklen; /* width of Visual block */
5817{
5818 int lnum;
5819 long start;
5820 long i;
5821 int extra;
5822 int newlines; /* number of lines added */
5823 int extraline = 0; /* extra line at the end */
5824 int append = FALSE; /* append to last line in register */
5825 char_u *s;
5826 char_u **pp;
5827#ifdef FEAT_VISUAL
5828 long maxlen;
5829#endif
5830
5831 if (y_ptr->y_array == NULL) /* NULL means emtpy register */
5832 y_ptr->y_size = 0;
5833
5834 /*
5835 * Count the number of lines within the string
5836 */
5837 newlines = 0;
5838 for (i = 0; i < len; i++)
5839 if (str[i] == '\n')
5840 ++newlines;
5841 if (type == MCHAR || len == 0 || str[len - 1] != '\n')
5842 {
5843 extraline = 1;
5844 ++newlines; /* count extra newline at the end */
5845 }
5846 if (y_ptr->y_size > 0 && y_ptr->y_type == MCHAR)
5847 {
5848 append = TRUE;
5849 --newlines; /* uncount newline when appending first line */
5850 }
5851
5852 /*
5853 * Allocate an array to hold the pointers to the new register lines.
5854 * If the register was not empty, move the existing lines to the new array.
5855 */
5856 pp = (char_u **)lalloc_clear((y_ptr->y_size + newlines)
5857 * sizeof(char_u *), TRUE);
5858 if (pp == NULL) /* out of memory */
5859 return;
5860 for (lnum = 0; lnum < y_ptr->y_size; ++lnum)
5861 pp[lnum] = y_ptr->y_array[lnum];
5862 vim_free(y_ptr->y_array);
5863 y_ptr->y_array = pp;
5864#ifdef FEAT_VISUAL
5865 maxlen = 0;
5866#endif
5867
5868 /*
5869 * Find the end of each line and save it into the array.
5870 */
5871 for (start = 0; start < len + extraline; start += i + 1)
5872 {
5873 for (i = start; i < len; ++i) /* find the end of the line */
5874 if (str[i] == '\n')
5875 break;
5876 i -= start; /* i is now length of line */
5877#ifdef FEAT_VISUAL
5878 if (i > maxlen)
5879 maxlen = i;
5880#endif
5881 if (append)
5882 {
5883 --lnum;
5884 extra = (int)STRLEN(y_ptr->y_array[lnum]);
5885 }
5886 else
5887 extra = 0;
5888 s = alloc((unsigned)(i + extra + 1));
5889 if (s == NULL)
5890 break;
5891 if (extra)
5892 mch_memmove(s, y_ptr->y_array[lnum], (size_t)extra);
5893 if (append)
5894 vim_free(y_ptr->y_array[lnum]);
5895 if (i)
5896 mch_memmove(s + extra, str + start, (size_t)i);
5897 extra += i;
5898 s[extra] = NUL;
5899 y_ptr->y_array[lnum++] = s;
5900 while (--extra >= 0)
5901 {
5902 if (*s == NUL)
5903 *s = '\n'; /* replace NUL with newline */
5904 ++s;
5905 }
5906 append = FALSE; /* only first line is appended */
5907 }
5908 y_ptr->y_type = type;
5909 y_ptr->y_size = lnum;
5910# ifdef FEAT_VISUAL
5911 if (type == MBLOCK)
5912 y_ptr->y_width = (blocklen < 0 ? maxlen - 1 : blocklen);
5913 else
5914 y_ptr->y_width = 0;
5915# endif
5916}
5917#endif /* FEAT_CLIPBOARD || FEAT_EVAL || PROTO */
5918
5919 void
5920clear_oparg(oap)
5921 oparg_T *oap;
5922{
5923 vim_memset(oap, 0, sizeof(oparg_T));
5924}
5925
Bram Moolenaar7c626922005-02-07 22:01:03 +00005926static long line_count_info __ARGS((char_u *line, long *wc, long *cc, long limit, int eol_size));
Bram Moolenaar071d4272004-06-13 20:20:40 +00005927
5928/*
Bram Moolenaar7c626922005-02-07 22:01:03 +00005929 * Count the number of bytes, characters and "words" in a line.
Bram Moolenaar071d4272004-06-13 20:20:40 +00005930 *
5931 * "Words" are counted by looking for boundaries between non-space and
5932 * space characters. (it seems to produce results that match 'wc'.)
5933 *
Bram Moolenaar7c626922005-02-07 22:01:03 +00005934 * Return value is byte count; word count for the line is added to "*wc".
5935 * Char count is added to "*cc".
Bram Moolenaar071d4272004-06-13 20:20:40 +00005936 *
5937 * The function will only examine the first "limit" characters in the
5938 * line, stopping if it encounters an end-of-line (NUL byte). In that
5939 * case, eol_size will be added to the character count to account for
5940 * the size of the EOL character.
5941 */
5942 static long
Bram Moolenaar7c626922005-02-07 22:01:03 +00005943line_count_info(line, wc, cc, limit, eol_size)
Bram Moolenaar071d4272004-06-13 20:20:40 +00005944 char_u *line;
5945 long *wc;
Bram Moolenaar7c626922005-02-07 22:01:03 +00005946 long *cc;
Bram Moolenaar071d4272004-06-13 20:20:40 +00005947 long limit;
5948 int eol_size;
5949{
Bram Moolenaar7c626922005-02-07 22:01:03 +00005950 long i;
5951 long words = 0;
5952 long chars = 0;
Bram Moolenaar071d4272004-06-13 20:20:40 +00005953 int is_word = 0;
5954
Bram Moolenaar7c626922005-02-07 22:01:03 +00005955 for (i = 0; line[i] && i < limit; )
Bram Moolenaar071d4272004-06-13 20:20:40 +00005956 {
5957 if (is_word)
5958 {
5959 if (vim_isspace(line[i]))
5960 {
5961 words++;
5962 is_word = 0;
5963 }
5964 }
5965 else if (!vim_isspace(line[i]))
5966 is_word = 1;
Bram Moolenaar7c626922005-02-07 22:01:03 +00005967 ++chars;
5968#ifdef FEAT_MBYTE
5969 i += mb_ptr2len_check(line + i);
5970#else
5971 ++i;
5972#endif
Bram Moolenaar071d4272004-06-13 20:20:40 +00005973 }
5974
5975 if (is_word)
5976 words++;
5977 *wc += words;
5978
5979 /* Add eol_size if the end of line was reached before hitting limit. */
Bram Moolenaar7c626922005-02-07 22:01:03 +00005980 if (line[i] == NUL && i < limit)
5981 {
Bram Moolenaar071d4272004-06-13 20:20:40 +00005982 i += eol_size;
Bram Moolenaar7c626922005-02-07 22:01:03 +00005983 chars += eol_size;
5984 }
5985 *cc += chars;
Bram Moolenaar071d4272004-06-13 20:20:40 +00005986 return i;
5987}
5988
5989/*
5990 * Give some info about the position of the cursor (for "g CTRL-G").
5991 * In Visual mode, give some info about the selected region. (In this case,
5992 * the *_count_cursor variables store running totals for the selection.)
5993 */
5994 void
5995cursor_pos_info()
5996{
5997 char_u *p;
Bram Moolenaar555b2802005-05-19 21:08:39 +00005998 char_u buf1[50];
5999 char_u buf2[40];
Bram Moolenaar071d4272004-06-13 20:20:40 +00006000 linenr_T lnum;
Bram Moolenaar7c626922005-02-07 22:01:03 +00006001 long byte_count = 0;
6002 long byte_count_cursor = 0;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006003 long char_count = 0;
6004 long char_count_cursor = 0;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006005 long word_count = 0;
6006 long word_count_cursor = 0;
Bram Moolenaar7c626922005-02-07 22:01:03 +00006007 int eol_size;
6008 long last_check = 100000L;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006009#ifdef FEAT_VISUAL
6010 long line_count_selected = 0;
6011 pos_T min_pos, max_pos;
6012 oparg_T oparg;
6013 struct block_def bd;
6014#endif
6015
6016 /*
6017 * Compute the length of the file in characters.
6018 */
6019 if (curbuf->b_ml.ml_flags & ML_EMPTY)
6020 {
6021 MSG(_(no_lines_msg));
6022 }
6023 else
6024 {
6025 if (get_fileformat(curbuf) == EOL_DOS)
6026 eol_size = 2;
6027 else
6028 eol_size = 1;
6029
6030#ifdef FEAT_VISUAL
6031 if (VIsual_active)
6032 {
6033 if (lt(VIsual, curwin->w_cursor))
6034 {
6035 min_pos = VIsual;
6036 max_pos = curwin->w_cursor;
6037 }
6038 else
6039 {
6040 min_pos = curwin->w_cursor;
6041 max_pos = VIsual;
6042 }
6043 if (*p_sel == 'e' && max_pos.col > 0)
6044 --max_pos.col;
6045
6046 if (VIsual_mode == Ctrl_V)
6047 {
6048 oparg.is_VIsual = 1;
6049 oparg.block_mode = TRUE;
6050 oparg.op_type = OP_NOP;
6051 getvcols(curwin, &min_pos, &max_pos,
6052 &oparg.start_vcol, &oparg.end_vcol);
6053 /* Swap the start, end vcol if needed */
6054 if (oparg.end_vcol < oparg.start_vcol)
6055 {
6056 oparg.end_vcol += oparg.start_vcol;
6057 oparg.start_vcol = oparg.end_vcol - oparg.start_vcol;
6058 oparg.end_vcol -= oparg.start_vcol;
6059 }
6060 }
6061 line_count_selected = max_pos.lnum - min_pos.lnum + 1;
6062 }
6063#endif
6064
6065 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
6066 {
6067 /* Check for a CTRL-C every 100000 characters. */
Bram Moolenaar7c626922005-02-07 22:01:03 +00006068 if (byte_count > last_check)
Bram Moolenaar071d4272004-06-13 20:20:40 +00006069 {
6070 ui_breakcheck();
6071 if (got_int)
6072 return;
Bram Moolenaar7c626922005-02-07 22:01:03 +00006073 last_check = byte_count + 100000L;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006074 }
6075
6076#ifdef FEAT_VISUAL
6077 /* Do extra processing for VIsual mode. */
6078 if (VIsual_active
6079 && lnum >= min_pos.lnum && lnum <= max_pos.lnum)
6080 {
Bram Moolenaardef9e822004-12-31 20:58:58 +00006081 char_u *s = NULL;
6082 long len = 0L;
6083
Bram Moolenaar071d4272004-06-13 20:20:40 +00006084 switch (VIsual_mode)
6085 {
6086 case Ctrl_V:
6087# ifdef FEAT_VIRTUALEDIT
6088 virtual_op = virtual_active();
6089# endif
6090 block_prep(&oparg, &bd, lnum, 0);
6091# ifdef FEAT_VIRTUALEDIT
6092 virtual_op = MAYBE;
6093# endif
Bram Moolenaardef9e822004-12-31 20:58:58 +00006094 s = bd.textstart;
6095 len = (long)bd.textlen;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006096 break;
6097 case 'V':
Bram Moolenaardef9e822004-12-31 20:58:58 +00006098 s = ml_get(lnum);
6099 len = MAXCOL;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006100 break;
6101 case 'v':
6102 {
6103 colnr_T start_col = (lnum == min_pos.lnum)
6104 ? min_pos.col : 0;
6105 colnr_T end_col = (lnum == max_pos.lnum)
6106 ? max_pos.col - start_col + 1 : MAXCOL;
6107
Bram Moolenaardef9e822004-12-31 20:58:58 +00006108 s = ml_get(lnum) + start_col;
6109 len = end_col;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006110 }
6111 break;
6112 }
Bram Moolenaardef9e822004-12-31 20:58:58 +00006113 if (s != NULL)
6114 {
Bram Moolenaar7c626922005-02-07 22:01:03 +00006115 byte_count_cursor += line_count_info(s, &word_count_cursor,
6116 &char_count_cursor, len, eol_size);
Bram Moolenaardef9e822004-12-31 20:58:58 +00006117 if (lnum == curbuf->b_ml.ml_line_count
6118 && !curbuf->b_p_eol
6119 && curbuf->b_p_bin
Bram Moolenaarec2dad62005-01-02 11:36:03 +00006120 && (long)STRLEN(s) < len)
Bram Moolenaar7c626922005-02-07 22:01:03 +00006121 byte_count_cursor -= eol_size;
Bram Moolenaardef9e822004-12-31 20:58:58 +00006122 }
Bram Moolenaar071d4272004-06-13 20:20:40 +00006123 }
6124 else
6125#endif
6126 {
6127 /* In non-visual mode, check for the line the cursor is on */
6128 if (lnum == curwin->w_cursor.lnum)
6129 {
6130 word_count_cursor += word_count;
Bram Moolenaar7c626922005-02-07 22:01:03 +00006131 char_count_cursor += char_count;
6132 byte_count_cursor = byte_count +
6133 line_count_info(ml_get(lnum),
6134 &word_count_cursor, &char_count_cursor,
Bram Moolenaar071d4272004-06-13 20:20:40 +00006135 (long)(curwin->w_cursor.col + 1), eol_size);
6136 }
6137 }
6138 /* Add to the running totals */
Bram Moolenaar7c626922005-02-07 22:01:03 +00006139 byte_count += line_count_info(ml_get(lnum), &word_count,
6140 &char_count, (long)MAXCOL, eol_size);
Bram Moolenaar071d4272004-06-13 20:20:40 +00006141 }
6142
6143 /* Correction for when last line doesn't have an EOL. */
6144 if (!curbuf->b_p_eol && curbuf->b_p_bin)
Bram Moolenaar7c626922005-02-07 22:01:03 +00006145 byte_count -= eol_size;
Bram Moolenaar071d4272004-06-13 20:20:40 +00006146
6147#ifdef FEAT_VISUAL
6148 if (VIsual_active)
6149 {
6150 if (VIsual_mode == Ctrl_V)
6151 {
6152 getvcols(curwin, &min_pos, &max_pos, &min_pos.col,
6153 &max_pos.col);
6154 sprintf((char *)buf1, _("%ld Cols; "),
6155 (long)(oparg.end_vcol - oparg.start_vcol + 1));
6156 }
6157 else
6158 buf1[0] = NUL;
6159
Bram Moolenaar7c626922005-02-07 22:01:03 +00006160 if (char_count_cursor == byte_count_cursor
Bram Moolenaar555b2802005-05-19 21:08:39 +00006161 && char_count == byte_count)
Bram Moolenaar7c626922005-02-07 22:01:03 +00006162 sprintf((char *)IObuff, _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Bytes"),
Bram Moolenaar071d4272004-06-13 20:20:40 +00006163 buf1, line_count_selected,
6164 (long)curbuf->b_ml.ml_line_count,
6165 word_count_cursor, word_count,
Bram Moolenaar7c626922005-02-07 22:01:03 +00006166 byte_count_cursor, byte_count);
6167 else
6168 sprintf((char *)IObuff, _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Chars; %ld of %ld Bytes"),
6169 buf1, line_count_selected,
6170 (long)curbuf->b_ml.ml_line_count,
6171 word_count_cursor, word_count,
6172 char_count_cursor, char_count,
6173 byte_count_cursor, byte_count);
Bram Moolenaar071d4272004-06-13 20:20:40 +00006174 }
6175 else
6176#endif
6177 {
6178 p = ml_get_curline();
6179 validate_virtcol();
6180 col_print(buf1, (int)curwin->w_cursor.col + 1,
6181 (int)curwin->w_virtcol + 1);
6182 col_print(buf2, (int)STRLEN(p), linetabsize(p));
6183
Bram Moolenaar7c626922005-02-07 22:01:03 +00006184 if (char_count_cursor == byte_count_cursor
6185 && char_count == byte_count)
6186 sprintf((char *)IObuff, _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Byte %ld of %ld"),
Bram Moolenaar071d4272004-06-13 20:20:40 +00006187 (char *)buf1, (char *)buf2,
6188 (long)curwin->w_cursor.lnum,
6189 (long)curbuf->b_ml.ml_line_count,
6190 word_count_cursor, word_count,
Bram Moolenaar7c626922005-02-07 22:01:03 +00006191 byte_count_cursor, byte_count);
6192 else
6193 sprintf((char *)IObuff, _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Char %ld of %ld; Byte %ld of %ld"),
6194 (char *)buf1, (char *)buf2,
6195 (long)curwin->w_cursor.lnum,
6196 (long)curbuf->b_ml.ml_line_count,
6197 word_count_cursor, word_count,
6198 char_count_cursor, char_count,
6199 byte_count_cursor, byte_count);
Bram Moolenaar071d4272004-06-13 20:20:40 +00006200 }
6201
6202#ifdef FEAT_MBYTE
Bram Moolenaar7c626922005-02-07 22:01:03 +00006203 byte_count = bomb_size();
6204 if (byte_count > 0)
Bram Moolenaar071d4272004-06-13 20:20:40 +00006205 sprintf((char *)IObuff + STRLEN(IObuff), _("(+%ld for BOM)"),
Bram Moolenaar7c626922005-02-07 22:01:03 +00006206 byte_count);
Bram Moolenaar071d4272004-06-13 20:20:40 +00006207#endif
6208 /* Don't shorten this message, the user asked for it. */
6209 p = p_shm;
6210 p_shm = (char_u *)"";
6211 msg(IObuff);
6212 p_shm = p;
6213 }
6214}