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Window title is set on both decorated and full-screen window
[MacVim.git] / src / ops.c
blobb5b064b5914e5f043a8b5e6f10bafda12e230bec
1 /* vi:set ts=8 sts=4 sw=4:
2 *
3 * VIM - Vi IMproved by Bram Moolenaar
4 *
5 * Do ":help uganda" in Vim to read copying and usage conditions.
6 * Do ":help credits" in Vim to see a list of people who contributed.
7 * See README.txt for an overview of the Vim source code.
8 */
9
10 /*
11 * ops.c: implementation of various operators: op_shift, op_delete, op_tilde,
12 * op_change, op_yank, do_put, do_join
13 */
14
15 #include "vim.h"
16
17 /*
18 * Number of registers.
19 * 0 = unnamed register, for normal yanks and puts
20 * 1..9 = registers '1' to '9', for deletes
21 * 10..35 = registers 'a' to 'z'
22 * 36 = delete register '-'
23 * 37 = Selection register '*'. Only if FEAT_CLIPBOARD defined
24 * 38 = Clipboard register '+'. Only if FEAT_CLIPBOARD and FEAT_X11 defined
25 */
26 /*
27 * Symbolic names for some registers.
28 */
29 #define DELETION_REGISTER 36
30 #ifdef FEAT_CLIPBOARD
31 # define STAR_REGISTER 37
32 # ifdef FEAT_X11
33 # define PLUS_REGISTER 38
34 # else
35 # define PLUS_REGISTER STAR_REGISTER /* there is only one */
36 # endif
37 #endif
38 #ifdef FEAT_DND
39 # define TILDE_REGISTER (PLUS_REGISTER + 1)
40 #endif
41
42 #ifdef FEAT_CLIPBOARD
43 # ifdef FEAT_DND
44 # define NUM_REGISTERS (TILDE_REGISTER + 1)
45 # else
46 # define NUM_REGISTERS (PLUS_REGISTER + 1)
47 # endif
48 #else
49 # define NUM_REGISTERS 37
50 #endif
51
52 /*
53 * Each yank register is an array of pointers to lines.
54 */
55 static struct yankreg
56 {
57 char_u **y_array; /* pointer to array of line pointers */
58 linenr_T y_size; /* number of lines in y_array */
59 char_u y_type; /* MLINE, MCHAR or MBLOCK */
60 #ifdef FEAT_VISUAL
61 colnr_T y_width; /* only set if y_type == MBLOCK */
62 #endif
63 } y_regs[NUM_REGISTERS];
64
65 static struct yankreg *y_current; /* ptr to current yankreg */
66 static int y_append; /* TRUE when appending */
67 static struct yankreg *y_previous = NULL; /* ptr to last written yankreg */
68
69 /*
70 * structure used by block_prep, op_delete and op_yank for blockwise operators
71 * also op_change, op_shift, op_insert, op_replace - AKelly
72 */
73 struct block_def
74 {
75 int startspaces; /* 'extra' cols of first char */
76 int endspaces; /* 'extra' cols of first char */
77 int textlen; /* chars in block */
78 char_u *textstart; /* pointer to 1st char in block */
79 colnr_T textcol; /* cols of chars (at least part.) in block */
80 colnr_T start_vcol; /* start col of 1st char wholly inside block */
81 colnr_T end_vcol; /* start col of 1st char wholly after block */
82 #ifdef FEAT_VISUALEXTRA
83 int is_short; /* TRUE if line is too short to fit in block */
84 int is_MAX; /* TRUE if curswant==MAXCOL when starting */
85 int is_oneChar; /* TRUE if block within one character */
86 int pre_whitesp; /* screen cols of ws before block */
87 int pre_whitesp_c; /* chars of ws before block */
88 colnr_T end_char_vcols; /* number of vcols of post-block char */
89 #endif
90 colnr_T start_char_vcols; /* number of vcols of pre-block char */
91 };
92
93 #ifdef FEAT_VISUALEXTRA
94 static void shift_block __ARGS((oparg_T *oap, int amount));
95 static void block_insert __ARGS((oparg_T *oap, char_u *s, int b_insert, struct block_def*bdp));
96 #endif
97 static int stuff_yank __ARGS((int, char_u *));
98 static void put_reedit_in_typebuf __ARGS((int silent));
99 static int put_in_typebuf __ARGS((char_u *s, int esc, int colon,
100 int silent));
101 static void stuffescaped __ARGS((char_u *arg, int literally));
102 #ifdef FEAT_MBYTE
103 static void mb_adjust_opend __ARGS((oparg_T *oap));
104 #endif
105 static void free_yank __ARGS((long));
106 static void free_yank_all __ARGS((void));
107 static int yank_copy_line __ARGS((struct block_def *bd, long y_idx));
108 #ifdef FEAT_CLIPBOARD
109 static void copy_yank_reg __ARGS((struct yankreg *reg));
110 # if defined(FEAT_VISUAL) || defined(FEAT_EVAL)
111 static void may_set_selection __ARGS((void));
112 # endif
113 #endif
114 static void dis_msg __ARGS((char_u *p, int skip_esc));
115 #ifdef FEAT_VISUAL
116 static void block_prep __ARGS((oparg_T *oap, struct block_def *, linenr_T, int));
117 #endif
118 #if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
119 static void str_to_reg __ARGS((struct yankreg *y_ptr, int type, char_u *str, long len, long blocklen));
120 #endif
121 static int ends_in_white __ARGS((linenr_T lnum));
122 #ifdef FEAT_COMMENTS
123 static int same_leader __ARGS((linenr_T lnum, int, char_u *, int, char_u *));
124 static int fmt_check_par __ARGS((linenr_T, int *, char_u **, int do_comments));
125 #else
126 static int fmt_check_par __ARGS((linenr_T));
127 #endif
128
129 /*
130 * The names of operators.
131 * IMPORTANT: Index must correspond with defines in vim.h!!!
132 * The third field indicates whether the operator always works on lines.
133 */
134 static char opchars[][3] =
135 {
136 {NUL, NUL, FALSE}, /* OP_NOP */
137 {'d', NUL, FALSE}, /* OP_DELETE */
138 {'y', NUL, FALSE}, /* OP_YANK */
139 {'c', NUL, FALSE}, /* OP_CHANGE */
140 {'<', NUL, TRUE}, /* OP_LSHIFT */
141 {'>', NUL, TRUE}, /* OP_RSHIFT */
142 {'!', NUL, TRUE}, /* OP_FILTER */
143 {'g', '~', FALSE}, /* OP_TILDE */
144 {'=', NUL, TRUE}, /* OP_INDENT */
145 {'g', 'q', TRUE}, /* OP_FORMAT */
146 {':', NUL, TRUE}, /* OP_COLON */
147 {'g', 'U', FALSE}, /* OP_UPPER */
148 {'g', 'u', FALSE}, /* OP_LOWER */
149 {'J', NUL, TRUE}, /* DO_JOIN */
150 {'g', 'J', TRUE}, /* DO_JOIN_NS */
151 {'g', '?', FALSE}, /* OP_ROT13 */
152 {'r', NUL, FALSE}, /* OP_REPLACE */
153 {'I', NUL, FALSE}, /* OP_INSERT */
154 {'A', NUL, FALSE}, /* OP_APPEND */
155 {'z', 'f', TRUE}, /* OP_FOLD */
156 {'z', 'o', TRUE}, /* OP_FOLDOPEN */
157 {'z', 'O', TRUE}, /* OP_FOLDOPENREC */
158 {'z', 'c', TRUE}, /* OP_FOLDCLOSE */
159 {'z', 'C', TRUE}, /* OP_FOLDCLOSEREC */
160 {'z', 'd', TRUE}, /* OP_FOLDDEL */
161 {'z', 'D', TRUE}, /* OP_FOLDDELREC */
162 {'g', 'w', TRUE}, /* OP_FORMAT2 */
163 {'g', '@', FALSE}, /* OP_FUNCTION */
164 };
165
166 /*
167 * Translate a command name into an operator type.
168 * Must only be called with a valid operator name!
169 */
170 int
171 get_op_type(char1, char2)
172 int char1;
173 int char2;
174 {
175 int i;
176
177 if (char1 == 'r') /* ignore second character */
178 return OP_REPLACE;
179 if (char1 == '~') /* when tilde is an operator */
180 return OP_TILDE;
181 for (i = 0; ; ++i)
182 if (opchars[i][0] == char1 && opchars[i][1] == char2)
183 break;
184 return i;
185 }
186
187 #if defined(FEAT_VISUAL) || defined(PROTO)
188 /*
189 * Return TRUE if operator "op" always works on whole lines.
190 */
191 int
192 op_on_lines(op)
193 int op;
194 {
195 return opchars[op][2];
196 }
197 #endif
198
199 /*
200 * Get first operator command character.
201 * Returns 'g' or 'z' if there is another command character.
202 */
203 int
204 get_op_char(optype)
205 int optype;
206 {
207 return opchars[optype][0];
208 }
209
210 /*
211 * Get second operator command character.
212 */
213 int
214 get_extra_op_char(optype)
215 int optype;
216 {
217 return opchars[optype][1];
218 }
219
220 /*
221 * op_shift - handle a shift operation
222 */
223 void
224 op_shift(oap, curs_top, amount)
225 oparg_T *oap;
226 int curs_top;
227 int amount;
228 {
229 long i;
230 int first_char;
231 char_u *s;
232 #ifdef FEAT_VISUAL
233 int block_col = 0;
234 #endif
235
236 if (u_save((linenr_T)(oap->start.lnum - 1),
237 (linenr_T)(oap->end.lnum + 1)) == FAIL)
238 return;
239
240 #ifdef FEAT_VISUAL
241 if (oap->block_mode)
242 block_col = curwin->w_cursor.col;
243 #endif
244
245 for (i = oap->line_count; --i >= 0; )
246 {
247 first_char = *ml_get_curline();
248 if (first_char == NUL) /* empty line */
249 curwin->w_cursor.col = 0;
250 #ifdef FEAT_VISUALEXTRA
251 else if (oap->block_mode)
252 shift_block(oap, amount);
253 #endif
254 else
255 /* Move the line right if it doesn't start with '#', 'smartindent'
256 * isn't set or 'cindent' isn't set or '#' isn't in 'cino'. */
257 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
258 if (first_char != '#' || !preprocs_left())
259 #endif
260 {
261 shift_line(oap->op_type == OP_LSHIFT, p_sr, amount, FALSE);
262 }
263 ++curwin->w_cursor.lnum;
264 }
265
266 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L);
267
268 #ifdef FEAT_VISUAL
269 if (oap->block_mode)
270 {
271 curwin->w_cursor.lnum = oap->start.lnum;
272 curwin->w_cursor.col = block_col;
273 }
274 else
275 #endif
276 if (curs_top) /* put cursor on first line, for ">>" */
277 {
278 curwin->w_cursor.lnum = oap->start.lnum;
279 beginline(BL_SOL | BL_FIX); /* shift_line() may have set cursor.col */
280 }
281 else
282 --curwin->w_cursor.lnum; /* put cursor on last line, for ":>" */
283
284 if (oap->line_count > p_report)
285 {
286 if (oap->op_type == OP_RSHIFT)
287 s = (char_u *)">";
288 else
289 s = (char_u *)"<";
290 if (oap->line_count == 1)
291 {
292 if (amount == 1)
293 sprintf((char *)IObuff, _("1 line %sed 1 time"), s);
294 else
295 sprintf((char *)IObuff, _("1 line %sed %d times"), s, amount);
296 }
297 else
298 {
299 if (amount == 1)
300 sprintf((char *)IObuff, _("%ld lines %sed 1 time"),
301 oap->line_count, s);
302 else
303 sprintf((char *)IObuff, _("%ld lines %sed %d times"),
304 oap->line_count, s, amount);
305 }
306 msg(IObuff);
307 }
308
309 /*
310 * Set "'[" and "']" marks.
311 */
312 curbuf->b_op_start = oap->start;
313 curbuf->b_op_end.lnum = oap->end.lnum;
314 curbuf->b_op_end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
315 if (curbuf->b_op_end.col > 0)
316 --curbuf->b_op_end.col;
317 }
318
319 /*
320 * shift the current line one shiftwidth left (if left != 0) or right
321 * leaves cursor on first blank in the line
322 */
323 void
324 shift_line(left, round, amount, call_changed_bytes)
325 int left;
326 int round;
327 int amount;
328 int call_changed_bytes; /* call changed_bytes() */
329 {
330 int count;
331 int i, j;
332 int p_sw = (int)curbuf->b_p_sw;
333
334 count = get_indent(); /* get current indent */
335
336 if (round) /* round off indent */
337 {
338 i = count / p_sw; /* number of p_sw rounded down */
339 j = count % p_sw; /* extra spaces */
340 if (j && left) /* first remove extra spaces */
341 --amount;
342 if (left)
343 {
344 i -= amount;
345 if (i < 0)
346 i = 0;
347 }
348 else
349 i += amount;
350 count = i * p_sw;
351 }
352 else /* original vi indent */
353 {
354 if (left)
355 {
356 count -= p_sw * amount;
357 if (count < 0)
358 count = 0;
359 }
360 else
361 count += p_sw * amount;
362 }
363
364 /* Set new indent */
365 #ifdef FEAT_VREPLACE
366 if (State & VREPLACE_FLAG)
367 change_indent(INDENT_SET, count, FALSE, NUL, call_changed_bytes);
368 else
369 #endif
370 (void)set_indent(count, call_changed_bytes ? SIN_CHANGED : 0);
371 }
372
373 #if defined(FEAT_VISUALEXTRA) || defined(PROTO)
374 /*
375 * Shift one line of the current block one shiftwidth right or left.
376 * Leaves cursor on first character in block.
377 */
378 static void
379 shift_block(oap, amount)
380 oparg_T *oap;
381 int amount;
382 {
383 int left = (oap->op_type == OP_LSHIFT);
384 int oldstate = State;
385 int total, split;
386 char_u *newp, *oldp, *midp, *ptr;
387 int oldcol = curwin->w_cursor.col;
388 int p_sw = (int)curbuf->b_p_sw;
389 int p_ts = (int)curbuf->b_p_ts;
390 struct block_def bd;
391 int internal = 0;
392 int incr;
393 colnr_T vcol, col = 0, ws_vcol;
394 int i = 0, j = 0;
395 int len;
396
397 #ifdef FEAT_RIGHTLEFT
398 int old_p_ri = p_ri;
399
400 p_ri = 0; /* don't want revins in ident */
401 #endif
402
403 State = INSERT; /* don't want REPLACE for State */
404 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE);
405 if (bd.is_short)
406 return;
407
408 /* total is number of screen columns to be inserted/removed */
409 total = amount * p_sw;
410 oldp = ml_get_curline();
411
412 if (!left)
413 {
414 /*
415 * 1. Get start vcol
416 * 2. Total ws vcols
417 * 3. Divvy into TABs & spp
418 * 4. Construct new string
419 */
420 total += bd.pre_whitesp; /* all virtual WS upto & incl a split TAB */
421 ws_vcol = bd.start_vcol - bd.pre_whitesp;
422 if (bd.startspaces)
423 {
424 #ifdef FEAT_MBYTE
425 if (has_mbyte)
426 bd.textstart += (*mb_ptr2len)(bd.textstart);
427 #endif
428 ++bd.textstart;
429 }
430 for ( ; vim_iswhite(*bd.textstart); )
431 {
432 incr = lbr_chartabsize_adv(&bd.textstart, (colnr_T)(bd.start_vcol));
433 total += incr;
434 bd.start_vcol += incr;
435 }
436 /* OK, now total=all the VWS reqd, and textstart points at the 1st
437 * non-ws char in the block. */
438 if (!curbuf->b_p_et)
439 i = ((ws_vcol % p_ts) + total) / p_ts; /* number of tabs */
440 if (i)
441 j = ((ws_vcol % p_ts) + total) % p_ts; /* number of spp */
442 else
443 j = total;
444 /* if we're splitting a TAB, allow for it */
445 bd.textcol -= bd.pre_whitesp_c - (bd.startspaces != 0);
446 len = (int)STRLEN(bd.textstart) + 1;
447 newp = alloc_check((unsigned)(bd.textcol + i + j + len));
448 if (newp == NULL)
449 return;
450 vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + len));
451 mch_memmove(newp, oldp, (size_t)bd.textcol);
452 copy_chars(newp + bd.textcol, (size_t)i, TAB);
453 copy_spaces(newp + bd.textcol + i, (size_t)j);
454 /* the end */
455 mch_memmove(newp + bd.textcol + i + j, bd.textstart, (size_t)len);
456 }
457 else /* left */
458 {
459 vcol = oap->start_vcol;
460 /* walk vcol past ws to be removed */
461 for (midp = oldp + bd.textcol;
462 vcol < (oap->start_vcol + total) && vim_iswhite(*midp); )
463 {
464 incr = lbr_chartabsize_adv(&midp, (colnr_T)vcol);
465 vcol += incr;
466 }
467 /* internal is the block-internal ws replacing a split TAB */
468 if (vcol > (oap->start_vcol + total))
469 {
470 /* we have to split the TAB *(midp-1) */
471 internal = vcol - (oap->start_vcol + total);
472 }
473 /* if 'expandtab' is not set, use TABs */
474
475 split = bd.startspaces + internal;
476 if (split > 0)
477 {
478 if (!curbuf->b_p_et)
479 {
480 for (ptr = oldp, col = 0; ptr < oldp+bd.textcol; )
481 col += lbr_chartabsize_adv(&ptr, (colnr_T)col);
482
483 /* col+1 now equals the start col of the first char of the
484 * block (may be < oap.start_vcol if we're splitting a TAB) */
485 i = ((col % p_ts) + split) / p_ts; /* number of tabs */
486 }
487 if (i)
488 j = ((col % p_ts) + split) % p_ts; /* number of spp */
489 else
490 j = split;
491 }
492
493 newp = alloc_check(bd.textcol + i + j + (unsigned)STRLEN(midp) + 1);
494 if (newp == NULL)
495 return;
496 vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + STRLEN(midp) + 1));
497
498 /* copy first part we want to keep */
499 mch_memmove(newp, oldp, (size_t)bd.textcol);
500 /* Now copy any TABS and spp to ensure correct alignment! */
501 while (vim_iswhite(*midp))
502 {
503 if (*midp == TAB)
504 i++;
505 else /*space */
506 j++;
507 midp++;
508 }
509 /* We might have an extra TAB worth of spp now! */
510 if (j / p_ts && !curbuf->b_p_et)
511 {
512 i++;
513 j -= p_ts;
514 }
515 copy_chars(newp + bd.textcol, (size_t)i, TAB);
516 copy_spaces(newp + bd.textcol + i, (size_t)j);
517
518 /* the end */
519 mch_memmove(newp + STRLEN(newp), midp, (size_t)STRLEN(midp) + 1);
520 }
521 /* replace the line */
522 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
523 changed_bytes(curwin->w_cursor.lnum, (colnr_T)bd.textcol);
524 State = oldstate;
525 curwin->w_cursor.col = oldcol;
526 #ifdef FEAT_RIGHTLEFT
527 p_ri = old_p_ri;
528 #endif
529 }
530 #endif
531
532 #ifdef FEAT_VISUALEXTRA
533 /*
534 * Insert string "s" (b_insert ? before : after) block :AKelly
535 * Caller must prepare for undo.
536 */
537 static void
538 block_insert(oap, s, b_insert, bdp)
539 oparg_T *oap;
540 char_u *s;
541 int b_insert;
542 struct block_def *bdp;
543 {
544 int p_ts;
545 int count = 0; /* extra spaces to replace a cut TAB */
546 int spaces = 0; /* non-zero if cutting a TAB */
547 colnr_T offset; /* pointer along new line */
548 unsigned s_len; /* STRLEN(s) */
549 char_u *newp, *oldp; /* new, old lines */
550 linenr_T lnum; /* loop var */
551 int oldstate = State;
552
553 State = INSERT; /* don't want REPLACE for State */
554 s_len = (unsigned)STRLEN(s);
555
556 for (lnum = oap->start.lnum + 1; lnum <= oap->end.lnum; lnum++)
557 {
558 block_prep(oap, bdp, lnum, TRUE);
559 if (bdp->is_short && b_insert)
560 continue; /* OP_INSERT, line ends before block start */
561
562 oldp = ml_get(lnum);
563
564 if (b_insert)
565 {
566 p_ts = bdp->start_char_vcols;
567 spaces = bdp->startspaces;
568 if (spaces != 0)
569 count = p_ts - 1; /* we're cutting a TAB */
570 offset = bdp->textcol;
571 }
572 else /* append */
573 {
574 p_ts = bdp->end_char_vcols;
575 if (!bdp->is_short) /* spaces = padding after block */
576 {
577 spaces = (bdp->endspaces ? p_ts - bdp->endspaces : 0);
578 if (spaces != 0)
579 count = p_ts - 1; /* we're cutting a TAB */
580 offset = bdp->textcol + bdp->textlen - (spaces != 0);
581 }
582 else /* spaces = padding to block edge */
583 {
584 /* if $ used, just append to EOL (ie spaces==0) */
585 if (!bdp->is_MAX)
586 spaces = (oap->end_vcol - bdp->end_vcol) + 1;
587 count = spaces;
588 offset = bdp->textcol + bdp->textlen;
589 }
590 }
591
592 newp = alloc_check((unsigned)(STRLEN(oldp)) + s_len + count + 1);
593 if (newp == NULL)
594 continue;
595
596 /* copy up to shifted part */
597 mch_memmove(newp, oldp, (size_t)(offset));
598 oldp += offset;
599
600 /* insert pre-padding */
601 copy_spaces(newp + offset, (size_t)spaces);
602
603 /* copy the new text */
604 mch_memmove(newp + offset + spaces, s, (size_t)s_len);
605 offset += s_len;
606
607 if (spaces && !bdp->is_short)
608 {
609 /* insert post-padding */
610 copy_spaces(newp + offset + spaces, (size_t)(p_ts - spaces));
611 /* We're splitting a TAB, don't copy it. */
612 oldp++;
613 /* We allowed for that TAB, remember this now */
614 count++;
615 }
616
617 if (spaces > 0)
618 offset += count;
619 mch_memmove(newp + offset, oldp, (size_t)(STRLEN(oldp) + 1));
620
621 ml_replace(lnum, newp, FALSE);
622
623 if (lnum == oap->end.lnum)
624 {
625 /* Set "']" mark to the end of the block instead of the end of
626 * the insert in the first line. */
627 curbuf->b_op_end.lnum = oap->end.lnum;
628 curbuf->b_op_end.col = offset;
629 }
630 } /* for all lnum */
631
632 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L);
633
634 State = oldstate;
635 }
636 #endif
637
638 #if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(PROTO)
639 /*
640 * op_reindent - handle reindenting a block of lines.
641 */
642 void
643 op_reindent(oap, how)
644 oparg_T *oap;
645 int (*how) __ARGS((void));
646 {
647 long i;
648 char_u *l;
649 int count;
650 linenr_T first_changed = 0;
651 linenr_T last_changed = 0;
652 linenr_T start_lnum = curwin->w_cursor.lnum;
653
654 /* Don't even try when 'modifiable' is off. */
655 if (!curbuf->b_p_ma)
656 {
657 EMSG(_(e_modifiable));
658 return;
659 }
660
661 for (i = oap->line_count; --i >= 0 && !got_int; )
662 {
663 /* it's a slow thing to do, so give feedback so there's no worry that
664 * the computer's just hung. */
665
666 if (i > 1
667 && (i % 50 == 0 || i == oap->line_count - 1)
668 && oap->line_count > p_report)
669 smsg((char_u *)_("%ld lines to indent... "), i);
670
671 /*
672 * Be vi-compatible: For lisp indenting the first line is not
673 * indented, unless there is only one line.
674 */
675 #ifdef FEAT_LISP
676 if (i != oap->line_count - 1 || oap->line_count == 1
677 || how != get_lisp_indent)
678 #endif
679 {
680 l = skipwhite(ml_get_curline());
681 if (*l == NUL) /* empty or blank line */
682 count = 0;
683 else
684 count = how(); /* get the indent for this line */
685
686 if (set_indent(count, SIN_UNDO))
687 {
688 /* did change the indent, call changed_lines() later */
689 if (first_changed == 0)
690 first_changed = curwin->w_cursor.lnum;
691 last_changed = curwin->w_cursor.lnum;
692 }
693 }
694 ++curwin->w_cursor.lnum;
695 }
696
697 /* put cursor on first non-blank of indented line */
698 curwin->w_cursor.lnum = start_lnum;
699 beginline(BL_SOL | BL_FIX);
700
701 /* Mark changed lines so that they will be redrawn. When Visual
702 * highlighting was present, need to continue until the last line. When
703 * there is no change still need to remove the Visual highlighting. */
704 if (last_changed != 0)
705 changed_lines(first_changed, 0,
706 #ifdef FEAT_VISUAL
707 oap->is_VIsual ? start_lnum + oap->line_count :
708 #endif
709 last_changed + 1, 0L);
710 #ifdef FEAT_VISUAL
711 else if (oap->is_VIsual)
712 redraw_curbuf_later(INVERTED);
713 #endif
714
715 if (oap->line_count > p_report)
716 {
717 i = oap->line_count - (i + 1);
718 if (i == 1)
719 MSG(_("1 line indented "));
720 else
721 smsg((char_u *)_("%ld lines indented "), i);
722 }
723 /* set '[ and '] marks */
724 curbuf->b_op_start = oap->start;
725 curbuf->b_op_end = oap->end;
726 }
727 #endif /* defined(FEAT_LISP) || defined(FEAT_CINDENT) */
728
729 #if defined(FEAT_EVAL) || defined(PROTO)
730 /*
731 * Keep the last expression line here, for repeating.
732 */
733 static char_u *expr_line = NULL;
734
735 /*
736 * Get an expression for the "\"=expr1" or "CTRL-R =expr1"
737 * Returns '=' when OK, NUL otherwise.
738 */
739 int
740 get_expr_register()
741 {
742 char_u *new_line;
743
744 new_line = getcmdline('=', 0L, 0);
745 if (new_line == NULL)
746 return NUL;
747 if (*new_line == NUL) /* use previous line */
748 vim_free(new_line);
749 else
750 set_expr_line(new_line);
751 return '=';
752 }
753
754 /*
755 * Set the expression for the '=' register.
756 * Argument must be an allocated string.
757 */
758 void
759 set_expr_line(new_line)
760 char_u *new_line;
761 {
762 vim_free(expr_line);
763 expr_line = new_line;
764 }
765
766 /*
767 * Get the result of the '=' register expression.
768 * Returns a pointer to allocated memory, or NULL for failure.
769 */
770 char_u *
771 get_expr_line()
772 {
773 char_u *expr_copy;
774 char_u *rv;
775 static int nested = 0;
776
777 if (expr_line == NULL)
778 return NULL;
779
780 /* Make a copy of the expression, because evaluating it may cause it to be
781 * changed. */
782 expr_copy = vim_strsave(expr_line);
783 if (expr_copy == NULL)
784 return NULL;
785
786 /* When we are invoked recursively limit the evaluation to 10 levels.
787 * Then return the string as-is. */
788 if (nested >= 10)
789 return expr_copy;
790
791 ++nested;
792 rv = eval_to_string(expr_copy, NULL, TRUE);
793 --nested;
794 vim_free(expr_copy);
795 return rv;
796 }
797
798 /*
799 * Get the '=' register expression itself, without evaluating it.
800 */
801 char_u *
802 get_expr_line_src()
803 {
804 if (expr_line == NULL)
805 return NULL;
806 return vim_strsave(expr_line);
807 }
808 #endif /* FEAT_EVAL */
809
810 /*
811 * Check if 'regname' is a valid name of a yank register.
812 * Note: There is no check for 0 (default register), caller should do this
813 */
814 int
815 valid_yank_reg(regname, writing)
816 int regname;
817 int writing; /* if TRUE check for writable registers */
818 {
819 if ( (regname > 0 && ASCII_ISALNUM(regname))
820 || (!writing && vim_strchr((char_u *)
821 #ifdef FEAT_EVAL
822 "/.%#:="
823 #else
824 "/.%#:"
825 #endif
826 , regname) != NULL)
827 || regname == '"'
828 || regname == '-'
829 || regname == '_'
830 #ifdef FEAT_CLIPBOARD
831 || regname == '*'
832 || regname == '+'
833 #endif
834 #ifdef FEAT_DND
835 || (!writing && regname == '~')
836 #endif
837 )
838 return TRUE;
839 return FALSE;
840 }
841
842 /*
843 * Set y_current and y_append, according to the value of "regname".
844 * Cannot handle the '_' register.
845 * Must only be called with a valid register name!
846 *
847 * If regname is 0 and writing, use register 0
848 * If regname is 0 and reading, use previous register
849 */
850 void
851 get_yank_register(regname, writing)
852 int regname;
853 int writing;
854 {
855 int i;
856
857 y_append = FALSE;
858 if ((regname == 0 || regname == '"') && !writing && y_previous != NULL)
859 {
860 y_current = y_previous;
861 return;
862 }
863 i = regname;
864 if (VIM_ISDIGIT(i))
865 i -= '0';
866 else if (ASCII_ISLOWER(i))
867 i = CharOrdLow(i) + 10;
868 else if (ASCII_ISUPPER(i))
869 {
870 i = CharOrdUp(i) + 10;
871 y_append = TRUE;
872 }
873 else if (regname == '-')
874 i = DELETION_REGISTER;
875 #ifdef FEAT_CLIPBOARD
876 /* When selection is not available, use register 0 instead of '*' */
877 else if (clip_star.available && regname == '*')
878 i = STAR_REGISTER;
879 /* When clipboard is not available, use register 0 instead of '+' */
880 else if (clip_plus.available && regname == '+')
881 i = PLUS_REGISTER;
882 #endif
883 #ifdef FEAT_DND
884 else if (!writing && regname == '~')
885 i = TILDE_REGISTER;
886 #endif
887 else /* not 0-9, a-z, A-Z or '-': use register 0 */
888 i = 0;
889 y_current = &(y_regs[i]);
890 if (writing) /* remember the register we write into for do_put() */
891 y_previous = y_current;
892 }
893
894 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
895 /*
896 * When "regname" is a clipboard register, obtain the selection. If it's not
897 * available return zero, otherwise return "regname".
898 */
899 int
900 may_get_selection(regname)
901 int regname;
902 {
903 if (regname == '*')
904 {
905 if (!clip_star.available)
906 regname = 0;
907 else
908 clip_get_selection(&clip_star);
909 }
910 else if (regname == '+')
911 {
912 if (!clip_plus.available)
913 regname = 0;
914 else
915 clip_get_selection(&clip_plus);
916 }
917 return regname;
918 }
919 #endif
920
921 #if defined(FEAT_VISUAL) || defined(PROTO)
922 /*
923 * Obtain the contents of a "normal" register. The register is made empty.
924 * The returned pointer has allocated memory, use put_register() later.
925 */
926 void *
927 get_register(name, copy)
928 int name;
929 int copy; /* make a copy, if FALSE make register empty. */
930 {
931 struct yankreg *reg;
932 int i;
933
934 #ifdef FEAT_CLIPBOARD
935 /* When Visual area changed, may have to update selection. Obtain the
936 * selection too. */
937 if (name == '*' && clip_star.available)
938 {
939 if (clip_isautosel())
940 clip_update_selection();
941 may_get_selection(name);
942 }
943 #endif
944
945 get_yank_register(name, 0);
946 reg = (struct yankreg *)alloc((unsigned)sizeof(struct yankreg));
947 if (reg != NULL)
948 {
949 *reg = *y_current;
950 if (copy)
951 {
952 /* If we run out of memory some or all of the lines are empty. */
953 if (reg->y_size == 0)
954 reg->y_array = NULL;
955 else
956 reg->y_array = (char_u **)alloc((unsigned)(sizeof(char_u *)
957 * reg->y_size));
958 if (reg->y_array != NULL)
959 {
960 for (i = 0; i < reg->y_size; ++i)
961 reg->y_array[i] = vim_strsave(y_current->y_array[i]);
962 }
963 }
964 else
965 y_current->y_array = NULL;
966 }
967 return (void *)reg;
968 }
969
970 /*
971 * Put "reg" into register "name". Free any previous contents and "reg".
972 */
973 void
974 put_register(name, reg)
975 int name;
976 void *reg;
977 {
978 get_yank_register(name, 0);
979 free_yank_all();
980 *y_current = *(struct yankreg *)reg;
981 vim_free(reg);
982
983 # ifdef FEAT_CLIPBOARD
984 /* Send text written to clipboard register to the clipboard. */
985 may_set_selection();
986 # endif
987 }
988 #endif
989
990 #if defined(FEAT_MOUSE) || defined(PROTO)
991 /*
992 * return TRUE if the current yank register has type MLINE
993 */
994 int
995 yank_register_mline(regname)
996 int regname;
997 {
998 if (regname != 0 && !valid_yank_reg(regname, FALSE))
999 return FALSE;
1000 if (regname == '_') /* black hole is always empty */
1001 return FALSE;
1002 get_yank_register(regname, FALSE);
1003 return (y_current->y_type == MLINE);
1004 }
1005 #endif
1006
1007 /*
1008 * Start or stop recording into a yank register.
1009 *
1010 * Return FAIL for failure, OK otherwise.
1011 */
1012 int
1013 do_record(c)
1014 int c;
1015 {
1016 char_u *p;
1017 static int regname;
1018 struct yankreg *old_y_previous, *old_y_current;
1019 int retval;
1020
1021 if (Recording == FALSE) /* start recording */
1022 {
1023 /* registers 0-9, a-z and " are allowed */
1024 if (c < 0 || (!ASCII_ISALNUM(c) && c != '"'))
1025 retval = FAIL;
1026 else
1027 {
1028 Recording = TRUE;
1029 showmode();
1030 regname = c;
1031 retval = OK;
1032 }
1033 }
1034 else /* stop recording */
1035 {
1036 /*
1037 * Get the recorded key hits. K_SPECIAL and CSI will be escaped, this
1038 * needs to be removed again to put it in a register. exec_reg then
1039 * adds the escaping back later.
1040 */
1041 Recording = FALSE;
1042 MSG("");
1043 p = get_recorded();
1044 if (p == NULL)
1045 retval = FAIL;
1046 else
1047 {
1048 /* Remove escaping for CSI and K_SPECIAL in multi-byte chars. */
1049 vim_unescape_csi(p);
1050
1051 /*
1052 * We don't want to change the default register here, so save and
1053 * restore the current register name.
1054 */
1055 old_y_previous = y_previous;
1056 old_y_current = y_current;
1057
1058 retval = stuff_yank(regname, p);
1059
1060 y_previous = old_y_previous;
1061 y_current = old_y_current;
1062 }
1063 }
1064 return retval;
1065 }
1066
1067 /*
1068 * Stuff string "p" into yank register "regname" as a single line (append if
1069 * uppercase). "p" must have been alloced.
1070 *
1071 * return FAIL for failure, OK otherwise
1072 */
1073 static int
1074 stuff_yank(regname, p)
1075 int regname;
1076 char_u *p;
1077 {
1078 char_u *lp;
1079 char_u **pp;
1080
1081 /* check for read-only register */
1082 if (regname != 0 && !valid_yank_reg(regname, TRUE))
1083 {
1084 vim_free(p);
1085 return FAIL;
1086 }
1087 if (regname == '_') /* black hole: don't do anything */
1088 {
1089 vim_free(p);
1090 return OK;
1091 }
1092 get_yank_register(regname, TRUE);
1093 if (y_append && y_current->y_array != NULL)
1094 {
1095 pp = &(y_current->y_array[y_current->y_size - 1]);
1096 lp = lalloc((long_u)(STRLEN(*pp) + STRLEN(p) + 1), TRUE);
1097 if (lp == NULL)
1098 {
1099 vim_free(p);
1100 return FAIL;
1101 }
1102 STRCPY(lp, *pp);
1103 STRCAT(lp, p);
1104 vim_free(p);
1105 vim_free(*pp);
1106 *pp = lp;
1107 }
1108 else
1109 {
1110 free_yank_all();
1111 if ((y_current->y_array =
1112 (char_u **)alloc((unsigned)sizeof(char_u *))) == NULL)
1113 {
1114 vim_free(p);
1115 return FAIL;
1116 }
1117 y_current->y_array[0] = p;
1118 y_current->y_size = 1;
1119 y_current->y_type = MCHAR; /* used to be MLINE, why? */
1120 }
1121 return OK;
1122 }
1123
1124 /*
1125 * execute a yank register: copy it into the stuff buffer
1126 *
1127 * return FAIL for failure, OK otherwise
1128 */
1129 int
1130 do_execreg(regname, colon, addcr, silent)
1131 int regname;
1132 int colon; /* insert ':' before each line */
1133 int addcr; /* always add '\n' to end of line */
1134 int silent; /* set "silent" flag in typeahead buffer */
1135 {
1136 static int lastc = NUL;
1137 long i;
1138 char_u *p;
1139 int retval = OK;
1140 int remap;
1141
1142 if (regname == '@') /* repeat previous one */
1143 {
1144 if (lastc == NUL)
1145 {
1146 EMSG(_("E748: No previously used register"));
1147 return FAIL;
1148 }
1149 regname = lastc;
1150 }
1151 /* check for valid regname */
1152 if (regname == '%' || regname == '#' || !valid_yank_reg(regname, FALSE))
1153 {
1154 emsg_invreg(regname);
1155 return FAIL;
1156 }
1157 lastc = regname;
1158
1159 #ifdef FEAT_CLIPBOARD
1160 regname = may_get_selection(regname);
1161 #endif
1162
1163 if (regname == '_') /* black hole: don't stuff anything */
1164 return OK;
1165
1166 #ifdef FEAT_CMDHIST
1167 if (regname == ':') /* use last command line */
1168 {
1169 if (last_cmdline == NULL)
1170 {
1171 EMSG(_(e_nolastcmd));
1172 return FAIL;
1173 }
1174 vim_free(new_last_cmdline); /* don't keep the cmdline containing @: */
1175 new_last_cmdline = NULL;
1176 /* Escape all control characters with a CTRL-V */
1177 p = vim_strsave_escaped_ext(last_cmdline,
1178 (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);
1179 if (p != NULL)
1180 {
1181 /* When in Visual mode "'<,'>" will be prepended to the command.
1182 * Remove it when it's already there. */
1183 if (VIsual_active && STRNCMP(p, "'<,'>", 5) == 0)
1184 retval = put_in_typebuf(p + 5, TRUE, TRUE, silent);
1185 else
1186 retval = put_in_typebuf(p, TRUE, TRUE, silent);
1187 }
1188 vim_free(p);
1189 }
1190 #endif
1191 #ifdef FEAT_EVAL
1192 else if (regname == '=')
1193 {
1194 p = get_expr_line();
1195 if (p == NULL)
1196 return FAIL;
1197 retval = put_in_typebuf(p, TRUE, colon, silent);
1198 vim_free(p);
1199 }
1200 #endif
1201 else if (regname == '.') /* use last inserted text */
1202 {
1203 p = get_last_insert_save();
1204 if (p == NULL)
1205 {
1206 EMSG(_(e_noinstext));
1207 return FAIL;
1208 }
1209 retval = put_in_typebuf(p, FALSE, colon, silent);
1210 vim_free(p);
1211 }
1212 else
1213 {
1214 get_yank_register(regname, FALSE);
1215 if (y_current->y_array == NULL)
1216 return FAIL;
1217
1218 /* Disallow remaping for ":@r". */
1219 remap = colon ? REMAP_NONE : REMAP_YES;
1220
1221 /*
1222 * Insert lines into typeahead buffer, from last one to first one.
1223 */
1224 put_reedit_in_typebuf(silent);
1225 for (i = y_current->y_size; --i >= 0; )
1226 {
1227 char_u *escaped;
1228
1229 /* insert NL between lines and after last line if type is MLINE */
1230 if (y_current->y_type == MLINE || i < y_current->y_size - 1
1231 || addcr)
1232 {
1233 if (ins_typebuf((char_u *)"\n", remap, 0, TRUE, silent) == FAIL)
1234 return FAIL;
1235 }
1236 escaped = vim_strsave_escape_csi(y_current->y_array[i]);
1237 if (escaped == NULL)
1238 return FAIL;
1239 retval = ins_typebuf(escaped, remap, 0, TRUE, silent);
1240 vim_free(escaped);
1241 if (retval == FAIL)
1242 return FAIL;
1243 if (colon && ins_typebuf((char_u *)":", remap, 0, TRUE, silent)
1244 == FAIL)
1245 return FAIL;
1246 }
1247 Exec_reg = TRUE; /* disable the 'q' command */
1248 }
1249 return retval;
1250 }
1251
1252 /*
1253 * If "restart_edit" is not zero, put it in the typeahead buffer, so that it's
1254 * used only after other typeahead has been processed.
1255 */
1256 static void
1257 put_reedit_in_typebuf(silent)
1258 int silent;
1259 {
1260 char_u buf[3];
1261
1262 if (restart_edit != NUL)
1263 {
1264 if (restart_edit == 'V')
1265 {
1266 buf[0] = 'g';
1267 buf[1] = 'R';
1268 buf[2] = NUL;
1269 }
1270 else
1271 {
1272 buf[0] = restart_edit == 'I' ? 'i' : restart_edit;
1273 buf[1] = NUL;
1274 }
1275 if (ins_typebuf(buf, REMAP_NONE, 0, TRUE, silent) == OK)
1276 restart_edit = NUL;
1277 }
1278 }
1279
1280 static int
1281 put_in_typebuf(s, esc, colon, silent)
1282 char_u *s;
1283 int esc; /* Escape CSI characters */
1284 int colon; /* add ':' before the line */
1285 int silent;
1286 {
1287 int retval = OK;
1288
1289 put_reedit_in_typebuf(silent);
1290 if (colon)
1291 retval = ins_typebuf((char_u *)"\n", REMAP_YES, 0, TRUE, silent);
1292 if (retval == OK)
1293 {
1294 char_u *p;
1295
1296 if (esc)
1297 p = vim_strsave_escape_csi(s);
1298 else
1299 p = s;
1300 if (p == NULL)
1301 retval = FAIL;
1302 else
1303 retval = ins_typebuf(p, REMAP_YES, 0, TRUE, silent);
1304 if (esc)
1305 vim_free(p);
1306 }
1307 if (colon && retval == OK)
1308 retval = ins_typebuf((char_u *)":", REMAP_YES, 0, TRUE, silent);
1309 return retval;
1310 }
1311
1312 /*
1313 * Insert a yank register: copy it into the Read buffer.
1314 * Used by CTRL-R command and middle mouse button in insert mode.
1315 *
1316 * return FAIL for failure, OK otherwise
1317 */
1318 int
1319 insert_reg(regname, literally)
1320 int regname;
1321 int literally; /* insert literally, not as if typed */
1322 {
1323 long i;
1324 int retval = OK;
1325 char_u *arg;
1326 int allocated;
1327
1328 /*
1329 * It is possible to get into an endless loop by having CTRL-R a in
1330 * register a and then, in insert mode, doing CTRL-R a.
1331 * If you hit CTRL-C, the loop will be broken here.
1332 */
1333 ui_breakcheck();
1334 if (got_int)
1335 return FAIL;
1336
1337 /* check for valid regname */
1338 if (regname != NUL && !valid_yank_reg(regname, FALSE))
1339 return FAIL;
1340
1341 #ifdef FEAT_CLIPBOARD
1342 regname = may_get_selection(regname);
1343 #endif
1344
1345 if (regname == '.') /* insert last inserted text */
1346 retval = stuff_inserted(NUL, 1L, TRUE);
1347 else if (get_spec_reg(regname, &arg, &allocated, TRUE))
1348 {
1349 if (arg == NULL)
1350 return FAIL;
1351 stuffescaped(arg, literally);
1352 if (allocated)
1353 vim_free(arg);
1354 }
1355 else /* name or number register */
1356 {
1357 get_yank_register(regname, FALSE);
1358 if (y_current->y_array == NULL)
1359 retval = FAIL;
1360 else
1361 {
1362 for (i = 0; i < y_current->y_size; ++i)
1363 {
1364 stuffescaped(y_current->y_array[i], literally);
1365 /*
1366 * Insert a newline between lines and after last line if
1367 * y_type is MLINE.
1368 */
1369 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
1370 stuffcharReadbuff('\n');
1371 }
1372 }
1373 }
1374
1375 return retval;
1376 }
1377
1378 /*
1379 * Stuff a string into the typeahead buffer, such that edit() will insert it
1380 * literally ("literally" TRUE) or interpret is as typed characters.
1381 */
1382 static void
1383 stuffescaped(arg, literally)
1384 char_u *arg;
1385 int literally;
1386 {
1387 int c;
1388 char_u *start;
1389
1390 while (*arg != NUL)
1391 {
1392 /* Stuff a sequence of normal ASCII characters, that's fast. Also
1393 * stuff K_SPECIAL to get the effect of a special key when "literally"
1394 * is TRUE. */
1395 start = arg;
1396 while ((*arg >= ' '
1397 #ifndef EBCDIC
1398 && *arg < DEL /* EBCDIC: chars above space are normal */
1399 #endif
1400 )
1401 || (*arg == K_SPECIAL && !literally))
1402 ++arg;
1403 if (arg > start)
1404 stuffReadbuffLen(start, (long)(arg - start));
1405
1406 /* stuff a single special character */
1407 if (*arg != NUL)
1408 {
1409 #ifdef FEAT_MBYTE
1410 if (has_mbyte)
1411 c = mb_ptr2char_adv(&arg);
1412 else
1413 #endif
1414 c = *arg++;
1415 if (literally && ((c < ' ' && c != TAB) || c == DEL))
1416 stuffcharReadbuff(Ctrl_V);
1417 stuffcharReadbuff(c);
1418 }
1419 }
1420 }
1421
1422 /*
1423 * If "regname" is a special register, return TRUE and store a pointer to its
1424 * value in "argp".
1425 */
1426 int
1427 get_spec_reg(regname, argp, allocated, errmsg)
1428 int regname;
1429 char_u **argp;
1430 int *allocated; /* return: TRUE when value was allocated */
1431 int errmsg; /* give error message when failing */
1432 {
1433 int cnt;
1434
1435 *argp = NULL;
1436 *allocated = FALSE;
1437 switch (regname)
1438 {
1439 case '%': /* file name */
1440 if (errmsg)
1441 check_fname(); /* will give emsg if not set */
1442 *argp = curbuf->b_fname;
1443 return TRUE;
1444
1445 case '#': /* alternate file name */
1446 *argp = getaltfname(errmsg); /* may give emsg if not set */
1447 return TRUE;
1448
1449 #ifdef FEAT_EVAL
1450 case '=': /* result of expression */
1451 *argp = get_expr_line();
1452 *allocated = TRUE;
1453 return TRUE;
1454 #endif
1455
1456 case ':': /* last command line */
1457 if (last_cmdline == NULL && errmsg)
1458 EMSG(_(e_nolastcmd));
1459 *argp = last_cmdline;
1460 return TRUE;
1461
1462 case '/': /* last search-pattern */
1463 if (last_search_pat() == NULL && errmsg)
1464 EMSG(_(e_noprevre));
1465 *argp = last_search_pat();
1466 return TRUE;
1467
1468 case '.': /* last inserted text */
1469 *argp = get_last_insert_save();
1470 *allocated = TRUE;
1471 if (*argp == NULL && errmsg)
1472 EMSG(_(e_noinstext));
1473 return TRUE;
1474
1475 #ifdef FEAT_SEARCHPATH
1476 case Ctrl_F: /* Filename under cursor */
1477 case Ctrl_P: /* Path under cursor, expand via "path" */
1478 if (!errmsg)
1479 return FALSE;
1480 *argp = file_name_at_cursor(FNAME_MESS | FNAME_HYP
1481 | (regname == Ctrl_P ? FNAME_EXP : 0), 1L, NULL);
1482 *allocated = TRUE;
1483 return TRUE;
1484 #endif
1485
1486 case Ctrl_W: /* word under cursor */
1487 case Ctrl_A: /* WORD (mnemonic All) under cursor */
1488 if (!errmsg)
1489 return FALSE;
1490 cnt = find_ident_under_cursor(argp, regname == Ctrl_W
1491 ? (FIND_IDENT|FIND_STRING) : FIND_STRING);
1492 *argp = cnt ? vim_strnsave(*argp, cnt) : NULL;
1493 *allocated = TRUE;
1494 return TRUE;
1495
1496 case '_': /* black hole: always empty */
1497 *argp = (char_u *)"";
1498 return TRUE;
1499 }
1500
1501 return FALSE;
1502 }
1503
1504 /*
1505 * Paste a yank register into the command line.
1506 * Only for non-special registers.
1507 * Used by CTRL-R command in command-line mode
1508 * insert_reg() can't be used here, because special characters from the
1509 * register contents will be interpreted as commands.
1510 *
1511 * return FAIL for failure, OK otherwise
1512 */
1513 int
1514 cmdline_paste_reg(regname, literally, remcr)
1515 int regname;
1516 int literally; /* Insert text literally instead of "as typed" */
1517 int remcr; /* don't add trailing CR */
1518 {
1519 long i;
1520
1521 get_yank_register(regname, FALSE);
1522 if (y_current->y_array == NULL)
1523 return FAIL;
1524
1525 for (i = 0; i < y_current->y_size; ++i)
1526 {
1527 cmdline_paste_str(y_current->y_array[i], literally);
1528
1529 /* Insert ^M between lines and after last line if type is MLINE.
1530 * Don't do this when "remcr" is TRUE and the next line is empty. */
1531 if (y_current->y_type == MLINE
1532 || (i < y_current->y_size - 1
1533 && !(remcr
1534 && i == y_current->y_size - 2
1535 && *y_current->y_array[i + 1] == NUL)))
1536 cmdline_paste_str((char_u *)"\r", literally);
1537
1538 /* Check for CTRL-C, in case someone tries to paste a few thousand
1539 * lines and gets bored. */
1540 ui_breakcheck();
1541 if (got_int)
1542 return FAIL;
1543 }
1544 return OK;
1545 }
1546
1547 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
1548 /*
1549 * Adjust the register name pointed to with "rp" for the clipboard being
1550 * used always and the clipboard being available.
1551 */
1552 void
1553 adjust_clip_reg(rp)
1554 int *rp;
1555 {
1556 /* If no reg. specified, and "unnamed" is in 'clipboard', use '*' reg. */
1557 if (*rp == 0 && clip_unnamed)
1558 *rp = '*';
1559 if (!clip_star.available && *rp == '*')
1560 *rp = 0;
1561 if (!clip_plus.available && *rp == '+')
1562 *rp = 0;
1563 }
1564 #endif
1565
1566 /*
1567 * op_delete - handle a delete operation
1568 *
1569 * return FAIL if undo failed, OK otherwise.
1570 */
1571 int
1572 op_delete(oap)
1573 oparg_T *oap;
1574 {
1575 int n;
1576 linenr_T lnum;
1577 char_u *ptr;
1578 #ifdef FEAT_VISUAL
1579 char_u *newp, *oldp;
1580 struct block_def bd;
1581 #endif
1582 linenr_T old_lcount = curbuf->b_ml.ml_line_count;
1583 int did_yank = FALSE;
1584
1585 if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to do */
1586 return OK;
1587
1588 /* Nothing to delete, return here. Do prepare undo, for op_change(). */
1589 if (oap->empty)
1590 return u_save_cursor();
1591
1592 if (!curbuf->b_p_ma)
1593 {
1594 EMSG(_(e_modifiable));
1595 return FAIL;
1596 }
1597
1598 #ifdef FEAT_CLIPBOARD
1599 adjust_clip_reg(&oap->regname);
1600 #endif
1601
1602 #ifdef FEAT_MBYTE
1603 if (has_mbyte)
1604 mb_adjust_opend(oap);
1605 #endif
1606
1607 /*
1608 * Imitate the strange Vi behaviour: If the delete spans more than one line
1609 * and motion_type == MCHAR and the result is a blank line, make the delete
1610 * linewise. Don't do this for the change command or Visual mode.
1611 */
1612 if ( oap->motion_type == MCHAR
1613 #ifdef FEAT_VISUAL
1614 && !oap->is_VIsual
1615 && !oap->block_mode
1616 #endif
1617 && oap->line_count > 1
1618 && oap->op_type == OP_DELETE)
1619 {
1620 ptr = ml_get(oap->end.lnum) + oap->end.col + oap->inclusive;
1621 ptr = skipwhite(ptr);
1622 if (*ptr == NUL && inindent(0))
1623 oap->motion_type = MLINE;
1624 }
1625
1626 /*
1627 * Check for trying to delete (e.g. "D") in an empty line.
1628 * Note: For the change operator it is ok.
1629 */
1630 if ( oap->motion_type == MCHAR
1631 && oap->line_count == 1
1632 && oap->op_type == OP_DELETE
1633 && *ml_get(oap->start.lnum) == NUL)
1634 {
1635 /*
1636 * It's an error to operate on an empty region, when 'E' included in
1637 * 'cpoptions' (Vi compatible).
1638 */
1639 #ifdef FEAT_VIRTUALEDIT
1640 if (virtual_op)
1641 /* Virtual editing: Nothing gets deleted, but we set the '[ and ']
1642 * marks as if it happened. */
1643 goto setmarks;
1644 #endif
1645 if (vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL)
1646 beep_flush();
1647 return OK;
1648 }
1649
1650 /*
1651 * Do a yank of whatever we're about to delete.
1652 * If a yank register was specified, put the deleted text into that register.
1653 * For the black hole register '_' don't yank anything.
1654 */
1655 if (oap->regname != '_')
1656 {
1657 if (oap->regname != 0)
1658 {
1659 /* check for read-only register */
1660 if (!valid_yank_reg(oap->regname, TRUE))
1661 {
1662 beep_flush();
1663 return OK;
1664 }
1665 get_yank_register(oap->regname, TRUE); /* yank into specif'd reg. */
1666 if (op_yank(oap, TRUE, FALSE) == OK) /* yank without message */
1667 did_yank = TRUE;
1668 }
1669
1670 /*
1671 * Put deleted text into register 1 and shift number registers if the
1672 * delete contains a line break, or when a regname has been specified.
1673 */
1674 if (oap->regname != 0 || oap->motion_type == MLINE
1675 || oap->line_count > 1 || oap->use_reg_one)
1676 {
1677 y_current = &y_regs[9];
1678 free_yank_all(); /* free register nine */
1679 for (n = 9; n > 1; --n)
1680 y_regs[n] = y_regs[n - 1];
1681 y_previous = y_current = &y_regs[1];
1682 y_regs[1].y_array = NULL; /* set register one to empty */
1683 if (op_yank(oap, TRUE, FALSE) == OK)
1684 did_yank = TRUE;
1685 }
1686
1687 /* Yank into small delete register when no register specified and the
1688 * delete is within one line. */
1689 if (oap->regname == 0 && oap->motion_type != MLINE
1690 && oap->line_count == 1)
1691 {
1692 oap->regname = '-';
1693 get_yank_register(oap->regname, TRUE);
1694 if (op_yank(oap, TRUE, FALSE) == OK)
1695 did_yank = TRUE;
1696 oap->regname = 0;
1697 }
1698
1699 /*
1700 * If there's too much stuff to fit in the yank register, then get a
1701 * confirmation before doing the delete. This is crude, but simple.
1702 * And it avoids doing a delete of something we can't put back if we
1703 * want.
1704 */
1705 if (!did_yank)
1706 {
1707 int msg_silent_save = msg_silent;
1708
1709 msg_silent = 0; /* must display the prompt */
1710 n = ask_yesno((char_u *)_("cannot yank; delete anyway"), TRUE);
1711 msg_silent = msg_silent_save;
1712 if (n != 'y')
1713 {
1714 EMSG(_(e_abort));
1715 return FAIL;
1716 }
1717 }
1718 }
1719
1720 #ifdef FEAT_VISUAL
1721 /*
1722 * block mode delete
1723 */
1724 if (oap->block_mode)
1725 {
1726 if (u_save((linenr_T)(oap->start.lnum - 1),
1727 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1728 return FAIL;
1729
1730 for (lnum = curwin->w_cursor.lnum; lnum <= oap->end.lnum; ++lnum)
1731 {
1732 block_prep(oap, &bd, lnum, TRUE);
1733 if (bd.textlen == 0) /* nothing to delete */
1734 continue;
1735
1736 /* Adjust cursor position for tab replaced by spaces and 'lbr'. */
1737 if (lnum == curwin->w_cursor.lnum)
1738 {
1739 curwin->w_cursor.col = bd.textcol + bd.startspaces;
1740 # ifdef FEAT_VIRTUALEDIT
1741 curwin->w_cursor.coladd = 0;
1742 # endif
1743 }
1744
1745 /* n == number of chars deleted
1746 * If we delete a TAB, it may be replaced by several characters.
1747 * Thus the number of characters may increase!
1748 */
1749 n = bd.textlen - bd.startspaces - bd.endspaces;
1750 oldp = ml_get(lnum);
1751 newp = alloc_check((unsigned)STRLEN(oldp) + 1 - n);
1752 if (newp == NULL)
1753 continue;
1754 /* copy up to deleted part */
1755 mch_memmove(newp, oldp, (size_t)bd.textcol);
1756 /* insert spaces */
1757 copy_spaces(newp + bd.textcol,
1758 (size_t)(bd.startspaces + bd.endspaces));
1759 /* copy the part after the deleted part */
1760 oldp += bd.textcol + bd.textlen;
1761 mch_memmove(newp + bd.textcol + bd.startspaces + bd.endspaces,
1762 oldp, STRLEN(oldp) + 1);
1763 /* replace the line */
1764 ml_replace(lnum, newp, FALSE);
1765 }
1766
1767 check_cursor_col();
1768 changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col,
1769 oap->end.lnum + 1, 0L);
1770 oap->line_count = 0; /* no lines deleted */
1771 }
1772 else
1773 #endif
1774 if (oap->motion_type == MLINE)
1775 {
1776 if (oap->op_type == OP_CHANGE)
1777 {
1778 /* Delete the lines except the first one. Temporarily move the
1779 * cursor to the next line. Save the current line number, if the
1780 * last line is deleted it may be changed.
1781 */
1782 if (oap->line_count > 1)
1783 {
1784 lnum = curwin->w_cursor.lnum;
1785 ++curwin->w_cursor.lnum;
1786 del_lines((long)(oap->line_count - 1), TRUE);
1787 curwin->w_cursor.lnum = lnum;
1788 }
1789 if (u_save_cursor() == FAIL)
1790 return FAIL;
1791 if (curbuf->b_p_ai) /* don't delete indent */
1792 {
1793 beginline(BL_WHITE); /* cursor on first non-white */
1794 did_ai = TRUE; /* delete the indent when ESC hit */
1795 ai_col = curwin->w_cursor.col;
1796 }
1797 else
1798 beginline(0); /* cursor in column 0 */
1799 truncate_line(FALSE); /* delete the rest of the line */
1800 /* leave cursor past last char in line */
1801 if (oap->line_count > 1)
1802 u_clearline(); /* "U" command not possible after "2cc" */
1803 }
1804 else
1805 {
1806 del_lines(oap->line_count, TRUE);
1807 beginline(BL_WHITE | BL_FIX);
1808 u_clearline(); /* "U" command not possible after "dd" */
1809 }
1810 }
1811 else
1812 {
1813 #ifdef FEAT_VIRTUALEDIT
1814 if (virtual_op)
1815 {
1816 int endcol = 0;
1817
1818 /* For virtualedit: break the tabs that are partly included. */
1819 if (gchar_pos(&oap->start) == '\t')
1820 {
1821 if (u_save_cursor() == FAIL) /* save first line for undo */
1822 return FAIL;
1823 if (oap->line_count == 1)
1824 endcol = getviscol2(oap->end.col, oap->end.coladd);
1825 coladvance_force(getviscol2(oap->start.col, oap->start.coladd));
1826 oap->start = curwin->w_cursor;
1827 if (oap->line_count == 1)
1828 {
1829 coladvance(endcol);
1830 oap->end.col = curwin->w_cursor.col;
1831 oap->end.coladd = curwin->w_cursor.coladd;
1832 curwin->w_cursor = oap->start;
1833 }
1834 }
1835
1836 /* Break a tab only when it's included in the area. */
1837 if (gchar_pos(&oap->end) == '\t'
1838 && (int)oap->end.coladd < oap->inclusive)
1839 {
1840 /* save last line for undo */
1841 if (u_save((linenr_T)(oap->end.lnum - 1),
1842 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1843 return FAIL;
1844 curwin->w_cursor = oap->end;
1845 coladvance_force(getviscol2(oap->end.col, oap->end.coladd));
1846 oap->end = curwin->w_cursor;
1847 curwin->w_cursor = oap->start;
1848 }
1849 }
1850 #endif
1851
1852 if (oap->line_count == 1) /* delete characters within one line */
1853 {
1854 if (u_save_cursor() == FAIL) /* save line for undo */
1855 return FAIL;
1856
1857 /* if 'cpoptions' contains '$', display '$' at end of change */
1858 if ( vim_strchr(p_cpo, CPO_DOLLAR) != NULL
1859 && oap->op_type == OP_CHANGE
1860 && oap->end.lnum == curwin->w_cursor.lnum
1861 #ifdef FEAT_VISUAL
1862 && !oap->is_VIsual
1863 #endif
1864 )
1865 display_dollar(oap->end.col - !oap->inclusive);
1866
1867 n = oap->end.col - oap->start.col + 1 - !oap->inclusive;
1868
1869 #ifdef FEAT_VIRTUALEDIT
1870 if (virtual_op)
1871 {
1872 /* fix up things for virtualedit-delete:
1873 * break the tabs which are going to get in our way
1874 */
1875 char_u *curline = ml_get_curline();
1876 int len = (int)STRLEN(curline);
1877
1878 if (oap->end.coladd != 0
1879 && (int)oap->end.col >= len - 1
1880 && !(oap->start.coladd && (int)oap->end.col >= len - 1))
1881 n++;
1882 /* Delete at least one char (e.g, when on a control char). */
1883 if (n == 0 && oap->start.coladd != oap->end.coladd)
1884 n = 1;
1885
1886 /* When deleted a char in the line, reset coladd. */
1887 if (gchar_cursor() != NUL)
1888 curwin->w_cursor.coladd = 0;
1889 }
1890 #endif
1891 (void)del_bytes((long)n, !virtual_op, oap->op_type == OP_DELETE
1892 #ifdef FEAT_VISUAL
1893 && !oap->is_VIsual
1894 #endif
1895 );
1896 }
1897 else /* delete characters between lines */
1898 {
1899 pos_T curpos;
1900
1901 /* save deleted and changed lines for undo */
1902 if (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
1903 (linenr_T)(curwin->w_cursor.lnum + oap->line_count)) == FAIL)
1904 return FAIL;
1905
1906 truncate_line(TRUE); /* delete from cursor to end of line */
1907
1908 curpos = curwin->w_cursor; /* remember curwin->w_cursor */
1909 ++curwin->w_cursor.lnum;
1910 del_lines((long)(oap->line_count - 2), FALSE);
1911
1912 /* delete from start of line until op_end */
1913 curwin->w_cursor.col = 0;
1914 (void)del_bytes((long)(oap->end.col + 1 - !oap->inclusive),
1915 !virtual_op, oap->op_type == OP_DELETE
1916 #ifdef FEAT_VISUAL
1917 && !oap->is_VIsual
1918 #endif
1919 );
1920 curwin->w_cursor = curpos; /* restore curwin->w_cursor */
1921
1922 (void)do_join(FALSE);
1923 }
1924 }
1925
1926 msgmore(curbuf->b_ml.ml_line_count - old_lcount);
1927
1928 #ifdef FEAT_VIRTUALEDIT
1929 setmarks:
1930 #endif
1931 #ifdef FEAT_VISUAL
1932 if (oap->block_mode)
1933 {
1934 curbuf->b_op_end.lnum = oap->end.lnum;
1935 curbuf->b_op_end.col = oap->start.col;
1936 }
1937 else
1938 #endif
1939 curbuf->b_op_end = oap->start;
1940 curbuf->b_op_start = oap->start;
1941
1942 return OK;
1943 }
1944
1945 #ifdef FEAT_MBYTE
1946 /*
1947 * Adjust end of operating area for ending on a multi-byte character.
1948 * Used for deletion.
1949 */
1950 static void
1951 mb_adjust_opend(oap)
1952 oparg_T *oap;
1953 {
1954 char_u *p;
1955
1956 if (oap->inclusive)
1957 {
1958 p = ml_get(oap->end.lnum);
1959 oap->end.col += mb_tail_off(p, p + oap->end.col);
1960 }
1961 }
1962 #endif
1963
1964 #if defined(FEAT_VISUALEXTRA) || defined(PROTO)
1965 /*
1966 * Replace a whole area with one character.
1967 */
1968 int
1969 op_replace(oap, c)
1970 oparg_T *oap;
1971 int c;
1972 {
1973 int n, numc;
1974 #ifdef FEAT_MBYTE
1975 int num_chars;
1976 #endif
1977 char_u *newp, *oldp;
1978 size_t oldlen;
1979 struct block_def bd;
1980
1981 if ((curbuf->b_ml.ml_flags & ML_EMPTY ) || oap->empty)
1982 return OK; /* nothing to do */
1983
1984 #ifdef FEAT_MBYTE
1985 if (has_mbyte)
1986 mb_adjust_opend(oap);
1987 #endif
1988
1989 if (u_save((linenr_T)(oap->start.lnum - 1),
1990 (linenr_T)(oap->end.lnum + 1)) == FAIL)
1991 return FAIL;
1992
1993 /*
1994 * block mode replace
1995 */
1996 if (oap->block_mode)
1997 {
1998 bd.is_MAX = (curwin->w_curswant == MAXCOL);
1999 for ( ; curwin->w_cursor.lnum <= oap->end.lnum; ++curwin->w_cursor.lnum)
2000 {
2001 block_prep(oap, &bd, curwin->w_cursor.lnum, TRUE);
2002 if (bd.textlen == 0 && (!virtual_op || bd.is_MAX))
2003 continue; /* nothing to replace */
2004
2005 /* n == number of extra chars required
2006 * If we split a TAB, it may be replaced by several characters.
2007 * Thus the number of characters may increase!
2008 */
2009 #ifdef FEAT_VIRTUALEDIT
2010 /* If the range starts in virtual space, count the initial
2011 * coladd offset as part of "startspaces" */
2012 if (virtual_op && bd.is_short && *bd.textstart == NUL)
2013 {
2014 pos_T vpos;
2015
2016 getvpos(&vpos, oap->start_vcol);
2017 bd.startspaces += vpos.coladd;
2018 n = bd.startspaces;
2019 }
2020 else
2021 #endif
2022 /* allow for pre spaces */
2023 n = (bd.startspaces ? bd.start_char_vcols - 1 : 0);
2024
2025 /* allow for post spp */
2026 n += (bd.endspaces
2027 #ifdef FEAT_VIRTUALEDIT
2028 && !bd.is_oneChar
2029 #endif
2030 && bd.end_char_vcols > 0) ? bd.end_char_vcols - 1 : 0;
2031 /* Figure out how many characters to replace. */
2032 numc = oap->end_vcol - oap->start_vcol + 1;
2033 if (bd.is_short && (!virtual_op || bd.is_MAX))
2034 numc -= (oap->end_vcol - bd.end_vcol) + 1;
2035
2036 #ifdef FEAT_MBYTE
2037 /* A double-wide character can be replaced only up to half the
2038 * times. */
2039 if ((*mb_char2cells)(c) > 1)
2040 {
2041 if ((numc & 1) && !bd.is_short)
2042 {
2043 ++bd.endspaces;
2044 ++n;
2045 }
2046 numc = numc / 2;
2047 }
2048
2049 /* Compute bytes needed, move character count to num_chars. */
2050 num_chars = numc;
2051 numc *= (*mb_char2len)(c);
2052 #endif
2053 /* oldlen includes textlen, so don't double count */
2054 n += numc - bd.textlen;
2055
2056 oldp = ml_get_curline();
2057 oldlen = STRLEN(oldp);
2058 newp = alloc_check((unsigned)oldlen + 1 + n);
2059 if (newp == NULL)
2060 continue;
2061 vim_memset(newp, NUL, (size_t)(oldlen + 1 + n));
2062 /* copy up to deleted part */
2063 mch_memmove(newp, oldp, (size_t)bd.textcol);
2064 oldp += bd.textcol + bd.textlen;
2065 /* insert pre-spaces */
2066 copy_spaces(newp + bd.textcol, (size_t)bd.startspaces);
2067 /* insert replacement chars CHECK FOR ALLOCATED SPACE */
2068 #ifdef FEAT_MBYTE
2069 if (has_mbyte)
2070 {
2071 n = (int)STRLEN(newp);
2072 while (--num_chars >= 0)
2073 n += (*mb_char2bytes)(c, newp + n);
2074 }
2075 else
2076 #endif
2077 copy_chars(newp + STRLEN(newp), (size_t)numc, c);
2078 if (!bd.is_short)
2079 {
2080 /* insert post-spaces */
2081 copy_spaces(newp + STRLEN(newp), (size_t)bd.endspaces);
2082 /* copy the part after the changed part */
2083 mch_memmove(newp + STRLEN(newp), oldp, STRLEN(oldp) + 1);
2084 }
2085 /* replace the line */
2086 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
2087 }
2088 }
2089 else
2090 {
2091 /*
2092 * MCHAR and MLINE motion replace.
2093 */
2094 if (oap->motion_type == MLINE)
2095 {
2096 oap->start.col = 0;
2097 curwin->w_cursor.col = 0;
2098 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
2099 if (oap->end.col)
2100 --oap->end.col;
2101 }
2102 else if (!oap->inclusive)
2103 dec(&(oap->end));
2104
2105 while (ltoreq(curwin->w_cursor, oap->end))
2106 {
2107 n = gchar_cursor();
2108 if (n != NUL)
2109 {
2110 #ifdef FEAT_MBYTE
2111 if ((*mb_char2len)(c) > 1 || (*mb_char2len)(n) > 1)
2112 {
2113 /* This is slow, but it handles replacing a single-byte
2114 * with a multi-byte and the other way around. */
2115 oap->end.col += (*mb_char2len)(c) - (*mb_char2len)(n);
2116 n = State;
2117 State = REPLACE;
2118 ins_char(c);
2119 State = n;
2120 /* Backup to the replaced character. */
2121 dec_cursor();
2122 }
2123 else
2124 #endif
2125 {
2126 #ifdef FEAT_VIRTUALEDIT
2127 if (n == TAB)
2128 {
2129 int end_vcol = 0;
2130
2131 if (curwin->w_cursor.lnum == oap->end.lnum)
2132 {
2133 /* oap->end has to be recalculated when
2134 * the tab breaks */
2135 end_vcol = getviscol2(oap->end.col,
2136 oap->end.coladd);
2137 }
2138 coladvance_force(getviscol());
2139 if (curwin->w_cursor.lnum == oap->end.lnum)
2140 getvpos(&oap->end, end_vcol);
2141 }
2142 #endif
2143 pchar(curwin->w_cursor, c);
2144 }
2145 }
2146 #ifdef FEAT_VIRTUALEDIT
2147 else if (virtual_op && curwin->w_cursor.lnum == oap->end.lnum)
2148 {
2149 int virtcols = oap->end.coladd;
2150
2151 if (curwin->w_cursor.lnum == oap->start.lnum
2152 && oap->start.col == oap->end.col && oap->start.coladd)
2153 virtcols -= oap->start.coladd;
2154
2155 /* oap->end has been trimmed so it's effectively inclusive;
2156 * as a result an extra +1 must be counted so we don't
2157 * trample the NUL byte. */
2158 coladvance_force(getviscol2(oap->end.col, oap->end.coladd) + 1);
2159 curwin->w_cursor.col -= (virtcols + 1);
2160 for (; virtcols >= 0; virtcols--)
2161 {
2162 pchar(curwin->w_cursor, c);
2163 if (inc(&curwin->w_cursor) == -1)
2164 break;
2165 }
2166 }
2167 #endif
2168
2169 /* Advance to next character, stop at the end of the file. */
2170 if (inc_cursor() == -1)
2171 break;
2172 }
2173 }
2174
2175 curwin->w_cursor = oap->start;
2176 check_cursor();
2177 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1, 0L);
2178
2179 /* Set "'[" and "']" marks. */
2180 curbuf->b_op_start = oap->start;
2181 curbuf->b_op_end = oap->end;
2182
2183 return OK;
2184 }
2185 #endif
2186
2187 /*
2188 * Handle the (non-standard vi) tilde operator. Also for "gu", "gU" and "g?".
2189 */
2190 void
2191 op_tilde(oap)
2192 oparg_T *oap;
2193 {
2194 pos_T pos;
2195 #ifdef FEAT_VISUAL
2196 struct block_def bd;
2197 int todo;
2198 #endif
2199 int did_change = 0;
2200
2201 if (u_save((linenr_T)(oap->start.lnum - 1),
2202 (linenr_T)(oap->end.lnum + 1)) == FAIL)
2203 return;
2204
2205 pos = oap->start;
2206 #ifdef FEAT_VISUAL
2207 if (oap->block_mode) /* Visual block mode */
2208 {
2209 for (; pos.lnum <= oap->end.lnum; ++pos.lnum)
2210 {
2211 block_prep(oap, &bd, pos.lnum, FALSE);
2212 pos.col = bd.textcol;
2213 for (todo = bd.textlen; todo > 0; --todo)
2214 {
2215 # ifdef FEAT_MBYTE
2216 if (has_mbyte)
2217 todo -= (*mb_ptr2len)(ml_get_pos(&pos)) - 1;
2218 # endif
2219 did_change |= swapchar(oap->op_type, &pos);
2220 if (inc(&pos) == -1) /* at end of file */
2221 break;
2222 }
2223 # ifdef FEAT_NETBEANS_INTG
2224 if (usingNetbeans && did_change)
2225 {
2226 char_u *ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2227
2228 netbeans_removed(curbuf, pos.lnum, bd.textcol,
2229 (long)bd.textlen);
2230 netbeans_inserted(curbuf, pos.lnum, bd.textcol,
2231 &ptr[bd.textcol], bd.textlen);
2232 }
2233 # endif
2234 }
2235 if (did_change)
2236 changed_lines(oap->start.lnum, 0, oap->end.lnum + 1, 0L);
2237 }
2238 else /* not block mode */
2239 #endif
2240 {
2241 if (oap->motion_type == MLINE)
2242 {
2243 oap->start.col = 0;
2244 pos.col = 0;
2245 oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
2246 if (oap->end.col)
2247 --oap->end.col;
2248 }
2249 else if (!oap->inclusive)
2250 dec(&(oap->end));
2251
2252 while (ltoreq(pos, oap->end))
2253 {
2254 did_change |= swapchar(oap->op_type, &pos);
2255 if (inc(&pos) == -1) /* at end of file */
2256 break;
2257 }
2258
2259 if (did_change)
2260 {
2261 changed_lines(oap->start.lnum, oap->start.col, oap->end.lnum + 1,
2262 0L);
2263 #ifdef FEAT_NETBEANS_INTG
2264 if (usingNetbeans && did_change)
2265 {
2266 char_u *ptr;
2267 int count;
2268
2269 pos = oap->start;
2270 while (pos.lnum < oap->end.lnum)
2271 {
2272 ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2273 count = (int)STRLEN(ptr) - pos.col;
2274 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
2275 netbeans_inserted(curbuf, pos.lnum, pos.col,
2276 &ptr[pos.col], count);
2277 pos.col = 0;
2278 pos.lnum++;
2279 }
2280 ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
2281 count = oap->end.col - pos.col + 1;
2282 netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
2283 netbeans_inserted(curbuf, pos.lnum, pos.col,
2284 &ptr[pos.col], count);
2285 }
2286 #endif
2287 }
2288 }
2289
2290 #ifdef FEAT_VISUAL
2291 if (!did_change && oap->is_VIsual)
2292 /* No change: need to remove the Visual selection */
2293 redraw_curbuf_later(INVERTED);
2294 #endif
2295
2296 /*
2297 * Set '[ and '] marks.
2298 */
2299 curbuf->b_op_start = oap->start;
2300 curbuf->b_op_end = oap->end;
2301
2302 if (oap->line_count > p_report)
2303 {
2304 if (oap->line_count == 1)
2305 MSG(_("1 line changed"));
2306 else
2307 smsg((char_u *)_("%ld lines changed"), oap->line_count);
2308 }
2309 }
2310
2311 /*
2312 * If op_type == OP_UPPER: make uppercase,
2313 * if op_type == OP_LOWER: make lowercase,
2314 * if op_type == OP_ROT13: do rot13 encoding,
2315 * else swap case of character at 'pos'
2316 * returns TRUE when something actually changed.
2317 */
2318 int
2319 swapchar(op_type, pos)
2320 int op_type;
2321 pos_T *pos;
2322 {
2323 int c;
2324 int nc;
2325
2326 c = gchar_pos(pos);
2327
2328 /* Only do rot13 encoding for ASCII characters. */
2329 if (c >= 0x80 && op_type == OP_ROT13)
2330 return FALSE;
2331
2332 #ifdef FEAT_MBYTE
2333 if (op_type == OP_UPPER && enc_latin1like && c == 0xdf)
2334 {
2335 pos_T sp = curwin->w_cursor;
2336
2337 /* Special handling of German sharp s: change to "SS". */
2338 curwin->w_cursor = *pos;
2339 del_char(FALSE);
2340 ins_char('S');
2341 ins_char('S');
2342 curwin->w_cursor = sp;
2343 inc(pos);
2344 }
2345
2346 if (enc_dbcs != 0 && c >= 0x100) /* No lower/uppercase letter */
2347 return FALSE;
2348 #endif
2349 nc = c;
2350 if (MB_ISLOWER(c))
2351 {
2352 if (op_type == OP_ROT13)
2353 nc = ROT13(c, 'a');
2354 else if (op_type != OP_LOWER)
2355 nc = MB_TOUPPER(c);
2356 }
2357 else if (MB_ISUPPER(c))
2358 {
2359 if (op_type == OP_ROT13)
2360 nc = ROT13(c, 'A');
2361 else if (op_type != OP_UPPER)
2362 nc = MB_TOLOWER(c);
2363 }
2364 if (nc != c)
2365 {
2366 #ifdef FEAT_MBYTE
2367 if (enc_utf8 && (c >= 0x80 || nc >= 0x80))
2368 {
2369 pos_T sp = curwin->w_cursor;
2370
2371 curwin->w_cursor = *pos;
2372 del_char(FALSE);
2373 ins_char(nc);
2374 curwin->w_cursor = sp;
2375 }
2376 else
2377 #endif
2378 pchar(*pos, nc);
2379 return TRUE;
2380 }
2381 return FALSE;
2382 }
2383
2384 #if defined(FEAT_VISUALEXTRA) || defined(PROTO)
2385 /*
2386 * op_insert - Insert and append operators for Visual mode.
2387 */
2388 void
2389 op_insert(oap, count1)
2390 oparg_T *oap;
2391 long count1;
2392 {
2393 long ins_len, pre_textlen = 0;
2394 char_u *firstline, *ins_text;
2395 struct block_def bd;
2396 int i;
2397
2398 /* edit() changes this - record it for OP_APPEND */
2399 bd.is_MAX = (curwin->w_curswant == MAXCOL);
2400
2401 /* vis block is still marked. Get rid of it now. */
2402 curwin->w_cursor.lnum = oap->start.lnum;
2403 update_screen(INVERTED);
2404
2405 if (oap->block_mode)
2406 {
2407 #ifdef FEAT_VIRTUALEDIT
2408 /* When 'virtualedit' is used, need to insert the extra spaces before
2409 * doing block_prep(). When only "block" is used, virtual edit is
2410 * already disabled, but still need it when calling
2411 * coladvance_force(). */
2412 if (curwin->w_cursor.coladd > 0)
2413 {
2414 int old_ve_flags = ve_flags;
2415
2416 ve_flags = VE_ALL;
2417 if (u_save_cursor() == FAIL)
2418 return;
2419 coladvance_force(oap->op_type == OP_APPEND
2420 ? oap->end_vcol + 1 : getviscol());
2421 if (oap->op_type == OP_APPEND)
2422 --curwin->w_cursor.col;
2423 ve_flags = old_ve_flags;
2424 }
2425 #endif
2426 /* Get the info about the block before entering the text */
2427 block_prep(oap, &bd, oap->start.lnum, TRUE);
2428 firstline = ml_get(oap->start.lnum) + bd.textcol;
2429 if (oap->op_type == OP_APPEND)
2430 firstline += bd.textlen;
2431 pre_textlen = (long)STRLEN(firstline);
2432 }
2433
2434 if (oap->op_type == OP_APPEND)
2435 {
2436 if (oap->block_mode
2437 #ifdef FEAT_VIRTUALEDIT
2438 && curwin->w_cursor.coladd == 0
2439 #endif
2440 )
2441 {
2442 /* Move the cursor to the character right of the block. */
2443 curwin->w_set_curswant = TRUE;
2444 while (*ml_get_cursor() != NUL
2445 && (curwin->w_cursor.col < bd.textcol + bd.textlen))
2446 ++curwin->w_cursor.col;
2447 if (bd.is_short && !bd.is_MAX)
2448 {
2449 /* First line was too short, make it longer and adjust the
2450 * values in "bd". */
2451 if (u_save_cursor() == FAIL)
2452 return;
2453 for (i = 0; i < bd.endspaces; ++i)
2454 ins_char(' ');
2455 bd.textlen += bd.endspaces;
2456 }
2457 }
2458 else
2459 {
2460 curwin->w_cursor = oap->end;
2461 check_cursor_col();
2462
2463 /* Works just like an 'i'nsert on the next character. */
2464 if (!lineempty(curwin->w_cursor.lnum)
2465 && oap->start_vcol != oap->end_vcol)
2466 inc_cursor();
2467 }
2468 }
2469
2470 edit(NUL, FALSE, (linenr_T)count1);
2471
2472 /* If user has moved off this line, we don't know what to do, so do
2473 * nothing.
2474 * Also don't repeat the insert when Insert mode ended with CTRL-C. */
2475 if (curwin->w_cursor.lnum != oap->start.lnum || got_int)
2476 return;
2477
2478 if (oap->block_mode)
2479 {
2480 struct block_def bd2;
2481
2482 /*
2483 * Spaces and tabs in the indent may have changed to other spaces and
2484 * tabs. Get the starting column again and correct the length.
2485 * Don't do this when "$" used, end-of-line will have changed.
2486 */
2487 block_prep(oap, &bd2, oap->start.lnum, TRUE);
2488 if (!bd.is_MAX || bd2.textlen < bd.textlen)
2489 {
2490 if (oap->op_type == OP_APPEND)
2491 {
2492 pre_textlen += bd2.textlen - bd.textlen;
2493 if (bd2.endspaces)
2494 --bd2.textlen;
2495 }
2496 bd.textcol = bd2.textcol;
2497 bd.textlen = bd2.textlen;
2498 }
2499
2500 /*
2501 * Subsequent calls to ml_get() flush the firstline data - take a
2502 * copy of the required string.
2503 */
2504 firstline = ml_get(oap->start.lnum) + bd.textcol;
2505 if (oap->op_type == OP_APPEND)
2506 firstline += bd.textlen;
2507 if ((ins_len = (long)STRLEN(firstline) - pre_textlen) > 0)
2508 {
2509 ins_text = vim_strnsave(firstline, (int)ins_len);
2510 if (ins_text != NULL)
2511 {
2512 /* block handled here */
2513 if (u_save(oap->start.lnum,
2514 (linenr_T)(oap->end.lnum + 1)) == OK)
2515 block_insert(oap, ins_text, (oap->op_type == OP_INSERT),
2516 &bd);
2517
2518 curwin->w_cursor.col = oap->start.col;
2519 check_cursor();
2520 vim_free(ins_text);
2521 }
2522 }
2523 }
2524 }
2525 #endif
2526
2527 /*
2528 * op_change - handle a change operation
2529 *
2530 * return TRUE if edit() returns because of a CTRL-O command
2531 */
2532 int
2533 op_change(oap)
2534 oparg_T *oap;
2535 {
2536 colnr_T l;
2537 int retval;
2538 #ifdef FEAT_VISUALEXTRA
2539 long offset;
2540 linenr_T linenr;
2541 long ins_len;
2542 long pre_textlen = 0;
2543 long pre_indent = 0;
2544 char_u *firstline;
2545 char_u *ins_text, *newp, *oldp;
2546 struct block_def bd;
2547 #endif
2548
2549 l = oap->start.col;
2550 if (oap->motion_type == MLINE)
2551 {
2552 l = 0;
2553 #ifdef FEAT_SMARTINDENT
2554 if (!p_paste && curbuf->b_p_si
2555 # ifdef FEAT_CINDENT
2556 && !curbuf->b_p_cin
2557 # endif
2558 )
2559 can_si = TRUE; /* It's like opening a new line, do si */
2560 #endif
2561 }
2562
2563 /* First delete the text in the region. In an empty buffer only need to
2564 * save for undo */
2565 if (curbuf->b_ml.ml_flags & ML_EMPTY)
2566 {
2567 if (u_save_cursor() == FAIL)
2568 return FALSE;
2569 }
2570 else if (op_delete(oap) == FAIL)
2571 return FALSE;
2572
2573 if ((l > curwin->w_cursor.col) && !lineempty(curwin->w_cursor.lnum)
2574 && !virtual_op)
2575 inc_cursor();
2576
2577 #ifdef FEAT_VISUALEXTRA
2578 /* check for still on same line (<CR> in inserted text meaningless) */
2579 /* skip blank lines too */
2580 if (oap->block_mode)
2581 {
2582 # ifdef FEAT_VIRTUALEDIT
2583 /* Add spaces before getting the current line length. */
2584 if (virtual_op && (curwin->w_cursor.coladd > 0
2585 || gchar_cursor() == NUL))
2586 coladvance_force(getviscol());
2587 # endif
2588 firstline = ml_get(oap->start.lnum);
2589 pre_textlen = (long)STRLEN(firstline);
2590 pre_indent = (long)(skipwhite(firstline) - firstline);
2591 bd.textcol = curwin->w_cursor.col;
2592 }
2593 #endif
2594
2595 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
2596 if (oap->motion_type == MLINE)
2597 fix_indent();
2598 #endif
2599
2600 retval = edit(NUL, FALSE, (linenr_T)1);
2601
2602 #ifdef FEAT_VISUALEXTRA
2603 /*
2604 * In Visual block mode, handle copying the new text to all lines of the
2605 * block.
2606 * Don't repeat the insert when Insert mode ended with CTRL-C.
2607 */
2608 if (oap->block_mode && oap->start.lnum != oap->end.lnum && !got_int)
2609 {
2610 /* Auto-indenting may have changed the indent. If the cursor was past
2611 * the indent, exclude that indent change from the inserted text. */
2612 firstline = ml_get(oap->start.lnum);
2613 if (bd.textcol > (colnr_T)pre_indent)
2614 {
2615 long new_indent = (long)(skipwhite(firstline) - firstline);
2616
2617 pre_textlen += new_indent - pre_indent;
2618 bd.textcol += new_indent - pre_indent;
2619 }
2620
2621 ins_len = (long)STRLEN(firstline) - pre_textlen;
2622 if (ins_len > 0)
2623 {
2624 /* Subsequent calls to ml_get() flush the firstline data - take a
2625 * copy of the inserted text. */
2626 if ((ins_text = alloc_check((unsigned)(ins_len + 1))) != NULL)
2627 {
2628 vim_strncpy(ins_text, firstline + bd.textcol, (size_t)ins_len);
2629 for (linenr = oap->start.lnum + 1; linenr <= oap->end.lnum;
2630 linenr++)
2631 {
2632 block_prep(oap, &bd, linenr, TRUE);
2633 if (!bd.is_short || virtual_op)
2634 {
2635 # ifdef FEAT_VIRTUALEDIT
2636 pos_T vpos;
2637
2638 /* If the block starts in virtual space, count the
2639 * initial coladd offset as part of "startspaces" */
2640 if (bd.is_short)
2641 {
2642 linenr_T lnum = curwin->w_cursor.lnum;
2643
2644 curwin->w_cursor.lnum = linenr;
2645 (void)getvpos(&vpos, oap->start_vcol);
2646 curwin->w_cursor.lnum = lnum;
2647 }
2648 else
2649 vpos.coladd = 0;
2650 # endif
2651 oldp = ml_get(linenr);
2652 newp = alloc_check((unsigned)(STRLEN(oldp)
2653 # ifdef FEAT_VIRTUALEDIT
2654 + vpos.coladd
2655 # endif
2656 + ins_len + 1));
2657 if (newp == NULL)
2658 continue;
2659 /* copy up to block start */
2660 mch_memmove(newp, oldp, (size_t)bd.textcol);
2661 offset = bd.textcol;
2662 # ifdef FEAT_VIRTUALEDIT
2663 copy_spaces(newp + offset, (size_t)vpos.coladd);
2664 offset += vpos.coladd;
2665 # endif
2666 mch_memmove(newp + offset, ins_text, (size_t)ins_len);
2667 offset += ins_len;
2668 oldp += bd.textcol;
2669 mch_memmove(newp + offset, oldp, STRLEN(oldp) + 1);
2670 ml_replace(linenr, newp, FALSE);
2671 }
2672 }
2673 check_cursor();
2674
2675 changed_lines(oap->start.lnum + 1, 0, oap->end.lnum + 1, 0L);
2676 }
2677 vim_free(ins_text);
2678 }
2679 }
2680 #endif
2681
2682 return retval;
2683 }
2684
2685 /*
2686 * set all the yank registers to empty (called from main())
2687 */
2688 void
2689 init_yank()
2690 {
2691 int i;
2692
2693 for (i = 0; i < NUM_REGISTERS; ++i)
2694 y_regs[i].y_array = NULL;
2695 }
2696
2697 #if defined(EXITFREE) || defined(PROTO)
2698 void
2699 clear_registers()
2700 {
2701 int i;
2702
2703 for (i = 0; i < NUM_REGISTERS; ++i)
2704 {
2705 y_current = &y_regs[i];
2706 if (y_current->y_array != NULL)
2707 free_yank_all();
2708 }
2709 }
2710 #endif
2711
2712 /*
2713 * Free "n" lines from the current yank register.
2714 * Called for normal freeing and in case of error.
2715 */
2716 static void
2717 free_yank(n)
2718 long n;
2719 {
2720 if (y_current->y_array != NULL)
2721 {
2722 long i;
2723
2724 for (i = n; --i >= 0; )
2725 {
2726 #ifdef AMIGA /* only for very slow machines */
2727 if ((i & 1023) == 1023) /* this may take a while */
2728 {
2729 /*
2730 * This message should never cause a hit-return message.
2731 * Overwrite this message with any next message.
2732 */
2733 ++no_wait_return;
2734 smsg((char_u *)_("freeing %ld lines"), i + 1);
2735 --no_wait_return;
2736 msg_didout = FALSE;
2737 msg_col = 0;
2738 }
2739 #endif
2740 vim_free(y_current->y_array[i]);
2741 }
2742 vim_free(y_current->y_array);
2743 y_current->y_array = NULL;
2744 #ifdef AMIGA
2745 if (n >= 1000)
2746 MSG("");
2747 #endif
2748 }
2749 }
2750
2751 static void
2752 free_yank_all()
2753 {
2754 free_yank(y_current->y_size);
2755 }
2756
2757 /*
2758 * Yank the text between "oap->start" and "oap->end" into a yank register.
2759 * If we are to append (uppercase register), we first yank into a new yank
2760 * register and then concatenate the old and the new one (so we keep the old
2761 * one in case of out-of-memory).
2762 *
2763 * return FAIL for failure, OK otherwise
2764 */
2765 int
2766 op_yank(oap, deleting, mess)
2767 oparg_T *oap;
2768 int deleting;
2769 int mess;
2770 {
2771 long y_idx; /* index in y_array[] */
2772 struct yankreg *curr; /* copy of y_current */
2773 struct yankreg newreg; /* new yank register when appending */
2774 char_u **new_ptr;
2775 linenr_T lnum; /* current line number */
2776 long j;
2777 int yanktype = oap->motion_type;
2778 long yanklines = oap->line_count;
2779 linenr_T yankendlnum = oap->end.lnum;
2780 char_u *p;
2781 char_u *pnew;
2782 struct block_def bd;
2783
2784 /* check for read-only register */
2785 if (oap->regname != 0 && !valid_yank_reg(oap->regname, TRUE))
2786 {
2787 beep_flush();
2788 return FAIL;
2789 }
2790 if (oap->regname == '_') /* black hole: nothing to do */
2791 return OK;
2792
2793 #ifdef FEAT_CLIPBOARD
2794 if (!clip_star.available && oap->regname == '*')
2795 oap->regname = 0;
2796 else if (!clip_plus.available && oap->regname == '+')
2797 oap->regname = 0;
2798 #endif
2799
2800 if (!deleting) /* op_delete() already set y_current */
2801 get_yank_register(oap->regname, TRUE);
2802
2803 curr = y_current;
2804 /* append to existing contents */
2805 if (y_append && y_current->y_array != NULL)
2806 y_current = &newreg;
2807 else
2808 free_yank_all(); /* free previously yanked lines */
2809
2810 /*
2811 * If the cursor was in column 1 before and after the movement, and the
2812 * operator is not inclusive, the yank is always linewise.
2813 */
2814 if ( oap->motion_type == MCHAR
2815 && oap->start.col == 0
2816 && !oap->inclusive
2817 #ifdef FEAT_VISUAL
2818 && (!oap->is_VIsual || *p_sel == 'o')
2819 && !oap->block_mode
2820 #endif
2821 && oap->end.col == 0
2822 && yanklines > 1)
2823 {
2824 yanktype = MLINE;
2825 --yankendlnum;
2826 --yanklines;
2827 }
2828
2829 y_current->y_size = yanklines;
2830 y_current->y_type = yanktype; /* set the yank register type */
2831 #ifdef FEAT_VISUAL
2832 y_current->y_width = 0;
2833 #endif
2834 y_current->y_array = (char_u **)lalloc_clear((long_u)(sizeof(char_u *) *
2835 yanklines), TRUE);
2836
2837 if (y_current->y_array == NULL)
2838 {
2839 y_current = curr;
2840 return FAIL;
2841 }
2842
2843 y_idx = 0;
2844 lnum = oap->start.lnum;
2845
2846 #ifdef FEAT_VISUAL
2847 if (oap->block_mode)
2848 {
2849 /* Visual block mode */
2850 y_current->y_type = MBLOCK; /* set the yank register type */
2851 y_current->y_width = oap->end_vcol - oap->start_vcol;
2852
2853 if (curwin->w_curswant == MAXCOL && y_current->y_width > 0)
2854 y_current->y_width--;
2855 }
2856 #endif
2857
2858 for ( ; lnum <= yankendlnum; lnum++, y_idx++)
2859 {
2860 switch (y_current->y_type)
2861 {
2862 #ifdef FEAT_VISUAL
2863 case MBLOCK:
2864 block_prep(oap, &bd, lnum, FALSE);
2865 if (yank_copy_line(&bd, y_idx) == FAIL)
2866 goto fail;
2867 break;
2868 #endif
2869
2870 case MLINE:
2871 if ((y_current->y_array[y_idx] =
2872 vim_strsave(ml_get(lnum))) == NULL)
2873 goto fail;
2874 break;
2875
2876 case MCHAR:
2877 {
2878 colnr_T startcol = 0, endcol = MAXCOL;
2879 #ifdef FEAT_VIRTUALEDIT
2880 int is_oneChar = FALSE;
2881 colnr_T cs, ce;
2882 #endif
2883 p = ml_get(lnum);
2884 bd.startspaces = 0;
2885 bd.endspaces = 0;
2886
2887 if (lnum == oap->start.lnum)
2888 {
2889 startcol = oap->start.col;
2890 #ifdef FEAT_VIRTUALEDIT
2891 if (virtual_op)
2892 {
2893 getvcol(curwin, &oap->start, &cs, NULL, &ce);
2894 if (ce != cs && oap->start.coladd > 0)
2895 {
2896 /* Part of a tab selected -- but don't
2897 * double-count it. */
2898 bd.startspaces = (ce - cs + 1)
2899 - oap->start.coladd;
2900 startcol++;
2901 }
2902 }
2903 #endif
2904 }
2905
2906 if (lnum == oap->end.lnum)
2907 {
2908 endcol = oap->end.col;
2909 #ifdef FEAT_VIRTUALEDIT
2910 if (virtual_op)
2911 {
2912 getvcol(curwin, &oap->end, &cs, NULL, &ce);
2913 if (p[endcol] == NUL || (cs + oap->end.coladd < ce
2914 # ifdef FEAT_MBYTE
2915 /* Don't add space for double-wide
2916 * char; endcol will be on last byte
2917 * of multi-byte char. */
2918 && (*mb_head_off)(p, p + endcol) == 0
2919 # endif
2920 ))
2921 {
2922 if (oap->start.lnum == oap->end.lnum
2923 && oap->start.col == oap->end.col)
2924 {
2925 /* Special case: inside a single char */
2926 is_oneChar = TRUE;
2927 bd.startspaces = oap->end.coladd
2928 - oap->start.coladd + oap->inclusive;
2929 endcol = startcol;
2930 }
2931 else
2932 {
2933 bd.endspaces = oap->end.coladd
2934 + oap->inclusive;
2935 endcol -= oap->inclusive;
2936 }
2937 }
2938 }
2939 #endif
2940 }
2941 if (startcol > endcol
2942 #ifdef FEAT_VIRTUALEDIT
2943 || is_oneChar
2944 #endif
2945 )
2946 bd.textlen = 0;
2947 else
2948 {
2949 if (endcol == MAXCOL)
2950 endcol = (colnr_T)STRLEN(p);
2951 bd.textlen = endcol - startcol + oap->inclusive;
2952 }
2953 bd.textstart = p + startcol;
2954 if (yank_copy_line(&bd, y_idx) == FAIL)
2955 goto fail;
2956 break;
2957 }
2958 /* NOTREACHED */
2959 }
2960 }
2961
2962 if (curr != y_current) /* append the new block to the old block */
2963 {
2964 new_ptr = (char_u **)lalloc((long_u)(sizeof(char_u *) *
2965 (curr->y_size + y_current->y_size)), TRUE);
2966 if (new_ptr == NULL)
2967 goto fail;
2968 for (j = 0; j < curr->y_size; ++j)
2969 new_ptr[j] = curr->y_array[j];
2970 vim_free(curr->y_array);
2971 curr->y_array = new_ptr;
2972
2973 if (yanktype == MLINE) /* MLINE overrides MCHAR and MBLOCK */
2974 curr->y_type = MLINE;
2975
2976 /* Concatenate the last line of the old block with the first line of
2977 * the new block, unless being Vi compatible. */
2978 if (curr->y_type == MCHAR && vim_strchr(p_cpo, CPO_REGAPPEND) == NULL)
2979 {
2980 pnew = lalloc((long_u)(STRLEN(curr->y_array[curr->y_size - 1])
2981 + STRLEN(y_current->y_array[0]) + 1), TRUE);
2982 if (pnew == NULL)
2983 {
2984 y_idx = y_current->y_size - 1;
2985 goto fail;
2986 }
2987 STRCPY(pnew, curr->y_array[--j]);
2988 STRCAT(pnew, y_current->y_array[0]);
2989 vim_free(curr->y_array[j]);
2990 vim_free(y_current->y_array[0]);
2991 curr->y_array[j++] = pnew;
2992 y_idx = 1;
2993 }
2994 else
2995 y_idx = 0;
2996 while (y_idx < y_current->y_size)
2997 curr->y_array[j++] = y_current->y_array[y_idx++];
2998 curr->y_size = j;
2999 vim_free(y_current->y_array);
3000 y_current = curr;
3001 }
3002 if (mess) /* Display message about yank? */
3003 {
3004 if (yanktype == MCHAR
3005 #ifdef FEAT_VISUAL
3006 && !oap->block_mode
3007 #endif
3008 && yanklines == 1)
3009 yanklines = 0;
3010 /* Some versions of Vi use ">=" here, some don't... */
3011 if (yanklines > p_report)
3012 {
3013 /* redisplay now, so message is not deleted */
3014 update_topline_redraw();
3015 if (yanklines == 1)
3016 {
3017 #ifdef FEAT_VISUAL
3018 if (oap->block_mode)
3019 MSG(_("block of 1 line yanked"));
3020 else
3021 #endif
3022 MSG(_("1 line yanked"));
3023 }
3024 #ifdef FEAT_VISUAL
3025 else if (oap->block_mode)
3026 smsg((char_u *)_("block of %ld lines yanked"), yanklines);
3027 #endif
3028 else
3029 smsg((char_u *)_("%ld lines yanked"), yanklines);
3030 }
3031 }
3032
3033 /*
3034 * Set "'[" and "']" marks.
3035 */
3036 curbuf->b_op_start = oap->start;
3037 curbuf->b_op_end = oap->end;
3038 if (yanktype == MLINE
3039 #ifdef FEAT_VISUAL
3040 && !oap->block_mode
3041 #endif
3042 )
3043 {
3044 curbuf->b_op_start.col = 0;
3045 curbuf->b_op_end.col = MAXCOL;
3046 }
3047
3048 #ifdef FEAT_CLIPBOARD
3049 /*
3050 * If we were yanking to the '*' register, send result to clipboard.
3051 * If no register was specified, and "unnamed" in 'clipboard', make a copy
3052 * to the '*' register.
3053 */
3054 if (clip_star.available
3055 && (curr == &(y_regs[STAR_REGISTER])
3056 || (!deleting && oap->regname == 0 && clip_unnamed)))
3057 {
3058 if (curr != &(y_regs[STAR_REGISTER]))
3059 /* Copy the text from register 0 to the clipboard register. */
3060 copy_yank_reg(&(y_regs[STAR_REGISTER]));
3061
3062 clip_own_selection(&clip_star);
3063 clip_gen_set_selection(&clip_star);
3064 }
3065
3066 # ifdef FEAT_X11
3067 /*
3068 * If we were yanking to the '+' register, send result to selection.
3069 * Also copy to the '*' register, in case auto-select is off.
3070 */
3071 else if (clip_plus.available && curr == &(y_regs[PLUS_REGISTER]))
3072 {
3073 /* No need to copy to * register upon 'unnamed' now - see below */
3074 clip_own_selection(&clip_plus);
3075 clip_gen_set_selection(&clip_plus);
3076 if (!clip_isautosel())
3077 {
3078 copy_yank_reg(&(y_regs[STAR_REGISTER]));
3079 clip_own_selection(&clip_star);
3080 clip_gen_set_selection(&clip_star);
3081 }
3082 }
3083 # endif
3084 #endif
3085
3086 return OK;
3087
3088 fail: /* free the allocated lines */
3089 free_yank(y_idx + 1);
3090 y_current = curr;
3091 return FAIL;
3092 }
3093
3094 static int
3095 yank_copy_line(bd, y_idx)
3096 struct block_def *bd;
3097 long y_idx;
3098 {
3099 char_u *pnew;
3100
3101 if ((pnew = alloc(bd->startspaces + bd->endspaces + bd->textlen + 1))
3102 == NULL)
3103 return FAIL;
3104 y_current->y_array[y_idx] = pnew;
3105 copy_spaces(pnew, (size_t)bd->startspaces);
3106 pnew += bd->startspaces;
3107 mch_memmove(pnew, bd->textstart, (size_t)bd->textlen);
3108 pnew += bd->textlen;
3109 copy_spaces(pnew, (size_t)bd->endspaces);
3110 pnew += bd->endspaces;
3111 *pnew = NUL;
3112 return OK;
3113 }
3114
3115 #ifdef FEAT_CLIPBOARD
3116 /*
3117 * Make a copy of the y_current register to register "reg".
3118 */
3119 static void
3120 copy_yank_reg(reg)
3121 struct yankreg *reg;
3122 {
3123 struct yankreg *curr = y_current;
3124 long j;
3125
3126 y_current = reg;
3127 free_yank_all();
3128 *y_current = *curr;
3129 y_current->y_array = (char_u **)lalloc_clear(
3130 (long_u)(sizeof(char_u *) * y_current->y_size), TRUE);
3131 if (y_current->y_array == NULL)
3132 y_current->y_size = 0;
3133 else
3134 for (j = 0; j < y_current->y_size; ++j)
3135 if ((y_current->y_array[j] = vim_strsave(curr->y_array[j])) == NULL)
3136 {
3137 free_yank(j);
3138 y_current->y_size = 0;
3139 break;
3140 }
3141 y_current = curr;
3142 }
3143 #endif
3144
3145 /*
3146 * Put contents of register "regname" into the text.
3147 * Caller must check "regname" to be valid!
3148 * "flags": PUT_FIXINDENT make indent look nice
3149 * PUT_CURSEND leave cursor after end of new text
3150 * PUT_LINE force linewise put (":put")
3151 */
3152 void
3153 do_put(regname, dir, count, flags)
3154 int regname;
3155 int dir; /* BACKWARD for 'P', FORWARD for 'p' */
3156 long count;
3157 int flags;
3158 {
3159 char_u *ptr;
3160 char_u *newp, *oldp;
3161 int yanklen;
3162 int totlen = 0; /* init for gcc */
3163 linenr_T lnum;
3164 colnr_T col;
3165 long i; /* index in y_array[] */
3166 int y_type;
3167 long y_size;
3168 #ifdef FEAT_VISUAL
3169 int oldlen;
3170 long y_width = 0;
3171 colnr_T vcol;
3172 int delcount;
3173 int incr = 0;
3174 long j;
3175 struct block_def bd;
3176 #endif
3177 char_u **y_array = NULL;
3178 long nr_lines = 0;
3179 pos_T new_cursor;
3180 int indent;
3181 int orig_indent = 0; /* init for gcc */
3182 int indent_diff = 0; /* init for gcc */
3183 int first_indent = TRUE;
3184 int lendiff = 0;
3185 pos_T old_pos;
3186 char_u *insert_string = NULL;
3187 int allocated = FALSE;
3188 long cnt;
3189
3190 #ifdef FEAT_CLIPBOARD
3191 /* Adjust register name for "unnamed" in 'clipboard'. */
3192 adjust_clip_reg(&regname);
3193 (void)may_get_selection(regname);
3194 #endif
3195
3196 if (flags & PUT_FIXINDENT)
3197 orig_indent = get_indent();
3198
3199 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */
3200 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */
3201
3202 /*
3203 * Using inserted text works differently, because the register includes
3204 * special characters (newlines, etc.).
3205 */
3206 if (regname == '.')
3207 {
3208 (void)stuff_inserted((dir == FORWARD ? (count == -1 ? 'o' : 'a') :
3209 (count == -1 ? 'O' : 'i')), count, FALSE);
3210 /* Putting the text is done later, so can't really move the cursor to
3211 * the next character. Use "l" to simulate it. */
3212 if ((flags & PUT_CURSEND) && gchar_cursor() != NUL)
3213 stuffcharReadbuff('l');
3214 return;
3215 }
3216
3217 /*
3218 * For special registers '%' (file name), '#' (alternate file name) and
3219 * ':' (last command line), etc. we have to create a fake yank register.
3220 */
3221 if (get_spec_reg(regname, &insert_string, &allocated, TRUE))
3222 {
3223 if (insert_string == NULL)
3224 return;
3225 }
3226
3227 if (insert_string != NULL)
3228 {
3229 y_type = MCHAR;
3230 #ifdef FEAT_EVAL
3231 if (regname == '=')
3232 {
3233 /* For the = register we need to split the string at NL
3234 * characters. */
3235 /* Loop twice: count the number of lines and save them. */
3236 for (;;)
3237 {
3238 y_size = 0;
3239 ptr = insert_string;
3240 while (ptr != NULL)
3241 {
3242 if (y_array != NULL)
3243 y_array[y_size] = ptr;
3244 ++y_size;
3245 ptr = vim_strchr(ptr, '\n');
3246 if (ptr != NULL)
3247 {
3248 if (y_array != NULL)
3249 *ptr = NUL;
3250 ++ptr;
3251 /* A trailing '\n' makes the string linewise */
3252 if (*ptr == NUL)
3253 {
3254 y_type = MLINE;
3255 break;
3256 }
3257 }
3258 }
3259 if (y_array != NULL)
3260 break;
3261 y_array = (char_u **)alloc((unsigned)
3262 (y_size * sizeof(char_u *)));
3263 if (y_array == NULL)
3264 goto end;
3265 }
3266 }
3267 else
3268 #endif
3269 {
3270 y_size = 1; /* use fake one-line yank register */
3271 y_array = &insert_string;
3272 }
3273 }
3274 else
3275 {
3276 get_yank_register(regname, FALSE);
3277
3278 y_type = y_current->y_type;
3279 #ifdef FEAT_VISUAL
3280 y_width = y_current->y_width;
3281 #endif
3282 y_size = y_current->y_size;
3283 y_array = y_current->y_array;
3284 }
3285
3286 #ifdef FEAT_VISUAL
3287 if (y_type == MLINE)
3288 {
3289 if (flags & PUT_LINE_SPLIT)
3290 {
3291 /* "p" or "P" in Visual mode: split the lines to put the text in
3292 * between. */
3293 if (u_save_cursor() == FAIL)
3294 goto end;
3295 ptr = vim_strsave(ml_get_cursor());
3296 if (ptr == NULL)
3297 goto end;
3298 ml_append(curwin->w_cursor.lnum, ptr, (colnr_T)0, FALSE);
3299 vim_free(ptr);
3300
3301 ptr = vim_strnsave(ml_get_curline(), curwin->w_cursor.col);
3302 if (ptr == NULL)
3303 goto end;
3304 ml_replace(curwin->w_cursor.lnum, ptr, FALSE);
3305 ++nr_lines;
3306 dir = FORWARD;
3307 }
3308 if (flags & PUT_LINE_FORWARD)
3309 {
3310 /* Must be "p" for a Visual block, put lines below the block. */
3311 curwin->w_cursor = curbuf->b_visual.vi_end;
3312 dir = FORWARD;
3313 }
3314 curbuf->b_op_start = curwin->w_cursor; /* default for '[ mark */
3315 curbuf->b_op_end = curwin->w_cursor; /* default for '] mark */
3316 }
3317 #endif
3318
3319 if (flags & PUT_LINE) /* :put command or "p" in Visual line mode. */
3320 y_type = MLINE;
3321
3322 if (y_size == 0 || y_array == NULL)
3323 {
3324 EMSG2(_("E353: Nothing in register %s"),
3325 regname == 0 ? (char_u *)"\"" : transchar(regname));
3326 goto end;
3327 }
3328
3329 #ifdef FEAT_VISUAL
3330 if (y_type == MBLOCK)
3331 {
3332 lnum = curwin->w_cursor.lnum + y_size + 1;
3333 if (lnum > curbuf->b_ml.ml_line_count)
3334 lnum = curbuf->b_ml.ml_line_count + 1;
3335 if (u_save(curwin->w_cursor.lnum - 1, lnum) == FAIL)
3336 goto end;
3337 }
3338 else
3339 #endif
3340 if (y_type == MLINE)
3341 {
3342 lnum = curwin->w_cursor.lnum;
3343 #ifdef FEAT_FOLDING
3344 /* Correct line number for closed fold. Don't move the cursor yet,
3345 * u_save() uses it. */
3346 if (dir == BACKWARD)
3347 (void)hasFolding(lnum, &lnum, NULL);
3348 else
3349 (void)hasFolding(lnum, NULL, &lnum);
3350 #endif
3351 if (dir == FORWARD)
3352 ++lnum;
3353 if (u_save(lnum - 1, lnum) == FAIL)
3354 goto end;
3355 #ifdef FEAT_FOLDING
3356 if (dir == FORWARD)
3357 curwin->w_cursor.lnum = lnum - 1;
3358 else
3359 curwin->w_cursor.lnum = lnum;
3360 curbuf->b_op_start = curwin->w_cursor; /* for mark_adjust() */
3361 #endif
3362 }
3363 else if (u_save_cursor() == FAIL)
3364 goto end;
3365
3366 yanklen = (int)STRLEN(y_array[0]);
3367
3368 #ifdef FEAT_VIRTUALEDIT
3369 if (ve_flags == VE_ALL && y_type == MCHAR)
3370 {
3371 if (gchar_cursor() == TAB)
3372 {
3373 /* Don't need to insert spaces when "p" on the last position of a
3374 * tab or "P" on the first position. */
3375 if (dir == FORWARD
3376 ? (int)curwin->w_cursor.coladd < curbuf->b_p_ts - 1
3377 : curwin->w_cursor.coladd > 0)
3378 coladvance_force(getviscol());
3379 else
3380 curwin->w_cursor.coladd = 0;
3381 }
3382 else if (curwin->w_cursor.coladd > 0 || gchar_cursor() == NUL)
3383 coladvance_force(getviscol() + (dir == FORWARD));
3384 }
3385 #endif
3386
3387 lnum = curwin->w_cursor.lnum;
3388 col = curwin->w_cursor.col;
3389
3390 #ifdef FEAT_VISUAL
3391 /*
3392 * Block mode
3393 */
3394 if (y_type == MBLOCK)
3395 {
3396 char c = gchar_cursor();
3397 colnr_T endcol2 = 0;
3398
3399 if (dir == FORWARD && c != NUL)
3400 {
3401 #ifdef FEAT_VIRTUALEDIT
3402 if (ve_flags == VE_ALL)
3403 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2);
3404 else
3405 #endif
3406 getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
3407
3408 #ifdef FEAT_MBYTE
3409 if (has_mbyte)
3410 /* move to start of next multi-byte character */
3411 curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor());
3412 else
3413 #endif
3414 #ifdef FEAT_VIRTUALEDIT
3415 if (c != TAB || ve_flags != VE_ALL)
3416 #endif
3417 ++curwin->w_cursor.col;
3418 ++col;
3419 }
3420 else
3421 getvcol(curwin, &curwin->w_cursor, &col, NULL, &endcol2);
3422
3423 #ifdef FEAT_VIRTUALEDIT
3424 col += curwin->w_cursor.coladd;
3425 if (ve_flags == VE_ALL
3426 && (curwin->w_cursor.coladd > 0
3427 || endcol2 == curwin->w_cursor.col))
3428 {
3429 if (dir == FORWARD && c == NUL)
3430 ++col;
3431 if (dir != FORWARD && c != NUL)
3432 ++curwin->w_cursor.col;
3433 if (c == TAB)
3434 {
3435 if (dir == BACKWARD && curwin->w_cursor.col)
3436 curwin->w_cursor.col--;
3437 if (dir == FORWARD && col - 1 == endcol2)
3438 curwin->w_cursor.col++;
3439 }
3440 }
3441 curwin->w_cursor.coladd = 0;
3442 #endif
3443 bd.textcol = 0;
3444 for (i = 0; i < y_size; ++i)
3445 {
3446 int spaces;
3447 char shortline;
3448
3449 bd.startspaces = 0;
3450 bd.endspaces = 0;
3451 vcol = 0;
3452 delcount = 0;
3453
3454 /* add a new line */
3455 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
3456 {
3457 if (ml_append(curbuf->b_ml.ml_line_count, (char_u *)"",
3458 (colnr_T)1, FALSE) == FAIL)
3459 break;
3460 ++nr_lines;
3461 }
3462 /* get the old line and advance to the position to insert at */
3463 oldp = ml_get_curline();
3464 oldlen = (int)STRLEN(oldp);
3465 for (ptr = oldp; vcol < col && *ptr; )
3466 {
3467 /* Count a tab for what it's worth (if list mode not on) */
3468 incr = lbr_chartabsize_adv(&ptr, (colnr_T)vcol);
3469 vcol += incr;
3470 }
3471 bd.textcol = (colnr_T)(ptr - oldp);
3472
3473 shortline = (vcol < col) || (vcol == col && !*ptr) ;
3474
3475 if (vcol < col) /* line too short, padd with spaces */
3476 bd.startspaces = col - vcol;
3477 else if (vcol > col)
3478 {
3479 bd.endspaces = vcol - col;
3480 bd.startspaces = incr - bd.endspaces;
3481 --bd.textcol;
3482 delcount = 1;
3483 #ifdef FEAT_MBYTE
3484 if (has_mbyte)
3485 bd.textcol -= (*mb_head_off)(oldp, oldp + bd.textcol);
3486 #endif
3487 if (oldp[bd.textcol] != TAB)
3488 {
3489 /* Only a Tab can be split into spaces. Other
3490 * characters will have to be moved to after the
3491 * block, causing misalignment. */
3492 delcount = 0;
3493 bd.endspaces = 0;
3494 }
3495 }
3496
3497 yanklen = (int)STRLEN(y_array[i]);
3498
3499 /* calculate number of spaces required to fill right side of block*/
3500 spaces = y_width + 1;
3501 for (j = 0; j < yanklen; j++)
3502 spaces -= lbr_chartabsize(&y_array[i][j], 0);
3503 if (spaces < 0)
3504 spaces = 0;
3505
3506 /* insert the new text */
3507 totlen = count * (yanklen + spaces) + bd.startspaces + bd.endspaces;
3508 newp = alloc_check((unsigned)totlen + oldlen + 1);
3509 if (newp == NULL)
3510 break;
3511 /* copy part up to cursor to new line */
3512 ptr = newp;
3513 mch_memmove(ptr, oldp, (size_t)bd.textcol);
3514 ptr += bd.textcol;
3515 /* may insert some spaces before the new text */
3516 copy_spaces(ptr, (size_t)bd.startspaces);
3517 ptr += bd.startspaces;
3518 /* insert the new text */
3519 for (j = 0; j < count; ++j)
3520 {
3521 mch_memmove(ptr, y_array[i], (size_t)yanklen);
3522 ptr += yanklen;
3523
3524 /* insert block's trailing spaces only if there's text behind */
3525 if ((j < count - 1 || !shortline) && spaces)
3526 {
3527 copy_spaces(ptr, (size_t)spaces);
3528 ptr += spaces;
3529 }
3530 }
3531 /* may insert some spaces after the new text */
3532 copy_spaces(ptr, (size_t)bd.endspaces);
3533 ptr += bd.endspaces;
3534 /* move the text after the cursor to the end of the line. */
3535 mch_memmove(ptr, oldp + bd.textcol + delcount,
3536 (size_t)(oldlen - bd.textcol - delcount + 1));
3537 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
3538
3539 ++curwin->w_cursor.lnum;
3540 if (i == 0)
3541 curwin->w_cursor.col += bd.startspaces;
3542 }
3543
3544 changed_lines(lnum, 0, curwin->w_cursor.lnum, nr_lines);
3545
3546 /* Set '[ mark. */
3547 curbuf->b_op_start = curwin->w_cursor;
3548 curbuf->b_op_start.lnum = lnum;
3549
3550 /* adjust '] mark */
3551 curbuf->b_op_end.lnum = curwin->w_cursor.lnum - 1;
3552 curbuf->b_op_end.col = bd.textcol + totlen - 1;
3553 # ifdef FEAT_VIRTUALEDIT
3554 curbuf->b_op_end.coladd = 0;
3555 # endif
3556 if (flags & PUT_CURSEND)
3557 {
3558 colnr_T len;
3559
3560 curwin->w_cursor = curbuf->b_op_end;
3561 curwin->w_cursor.col++;
3562
3563 /* in Insert mode we might be after the NUL, correct for that */
3564 len = (colnr_T)STRLEN(ml_get_curline());
3565 if (curwin->w_cursor.col > len)
3566 curwin->w_cursor.col = len;
3567 }
3568 else
3569 curwin->w_cursor.lnum = lnum;
3570 }
3571 else
3572 #endif
3573 {
3574 /*
3575 * Character or Line mode
3576 */
3577 if (y_type == MCHAR)
3578 {
3579 /* if type is MCHAR, FORWARD is the same as BACKWARD on the next
3580 * char */
3581 if (dir == FORWARD && gchar_cursor() != NUL)
3582 {
3583 #ifdef FEAT_MBYTE
3584 if (has_mbyte)
3585 {
3586 int bytelen = (*mb_ptr2len)(ml_get_cursor());
3587
3588 /* put it on the next of the multi-byte character. */
3589 col += bytelen;
3590 if (yanklen)
3591 {
3592 curwin->w_cursor.col += bytelen;
3593 curbuf->b_op_end.col += bytelen;
3594 }
3595 }
3596 else
3597 #endif
3598 {
3599 ++col;
3600 if (yanklen)
3601 {
3602 ++curwin->w_cursor.col;
3603 ++curbuf->b_op_end.col;
3604 }
3605 }
3606 }
3607 curbuf->b_op_start = curwin->w_cursor;
3608 }
3609 /*
3610 * Line mode: BACKWARD is the same as FORWARD on the previous line
3611 */
3612 else if (dir == BACKWARD)
3613 --lnum;
3614 new_cursor = curwin->w_cursor;
3615
3616 /*
3617 * simple case: insert into current line
3618 */
3619 if (y_type == MCHAR && y_size == 1)
3620 {
3621 totlen = count * yanklen;
3622 if (totlen)
3623 {
3624 oldp = ml_get(lnum);
3625 newp = alloc_check((unsigned)(STRLEN(oldp) + totlen + 1));
3626 if (newp == NULL)
3627 goto end; /* alloc() will give error message */
3628 mch_memmove(newp, oldp, (size_t)col);
3629 ptr = newp + col;
3630 for (i = 0; i < count; ++i)
3631 {
3632 mch_memmove(ptr, y_array[0], (size_t)yanklen);
3633 ptr += yanklen;
3634 }
3635 mch_memmove(ptr, oldp + col, STRLEN(oldp + col) + 1);
3636 ml_replace(lnum, newp, FALSE);
3637 /* Put cursor on last putted char. */
3638 curwin->w_cursor.col += (colnr_T)(totlen - 1);
3639 }
3640 curbuf->b_op_end = curwin->w_cursor;
3641 /* For "CTRL-O p" in Insert mode, put cursor after last char */
3642 if (totlen && (restart_edit != 0 || (flags & PUT_CURSEND)))
3643 ++curwin->w_cursor.col;
3644 changed_bytes(lnum, col);
3645 }
3646 else
3647 {
3648 /*
3649 * Insert at least one line. When y_type is MCHAR, break the first
3650 * line in two.
3651 */
3652 for (cnt = 1; cnt <= count; ++cnt)
3653 {
3654 i = 0;
3655 if (y_type == MCHAR)
3656 {
3657 /*
3658 * Split the current line in two at the insert position.
3659 * First insert y_array[size - 1] in front of second line.
3660 * Then append y_array[0] to first line.
3661 */
3662 lnum = new_cursor.lnum;
3663 ptr = ml_get(lnum) + col;
3664 totlen = (int)STRLEN(y_array[y_size - 1]);
3665 newp = alloc_check((unsigned)(STRLEN(ptr) + totlen + 1));
3666 if (newp == NULL)
3667 goto error;
3668 STRCPY(newp, y_array[y_size - 1]);
3669 STRCAT(newp, ptr);
3670 /* insert second line */
3671 ml_append(lnum, newp, (colnr_T)0, FALSE);
3672 vim_free(newp);
3673
3674 oldp = ml_get(lnum);
3675 newp = alloc_check((unsigned)(col + yanklen + 1));
3676 if (newp == NULL)
3677 goto error;
3678 /* copy first part of line */
3679 mch_memmove(newp, oldp, (size_t)col);
3680 /* append to first line */
3681 mch_memmove(newp + col, y_array[0], (size_t)(yanklen + 1));
3682 ml_replace(lnum, newp, FALSE);
3683
3684 curwin->w_cursor.lnum = lnum;
3685 i = 1;
3686 }
3687
3688 for (; i < y_size; ++i)
3689 {
3690 if ((y_type != MCHAR || i < y_size - 1)
3691 && ml_append(lnum, y_array[i], (colnr_T)0, FALSE)
3692 == FAIL)
3693 goto error;
3694 lnum++;
3695 ++nr_lines;
3696 if (flags & PUT_FIXINDENT)
3697 {
3698 old_pos = curwin->w_cursor;
3699 curwin->w_cursor.lnum = lnum;
3700 ptr = ml_get(lnum);
3701 if (cnt == count && i == y_size - 1)
3702 lendiff = (int)STRLEN(ptr);
3703 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
3704 if (*ptr == '#' && preprocs_left())
3705 indent = 0; /* Leave # lines at start */
3706 else
3707 #endif
3708 if (*ptr == NUL)
3709 indent = 0; /* Ignore empty lines */
3710 else if (first_indent)
3711 {
3712 indent_diff = orig_indent - get_indent();
3713 indent = orig_indent;
3714 first_indent = FALSE;
3715 }
3716 else if ((indent = get_indent() + indent_diff) < 0)
3717 indent = 0;
3718 (void)set_indent(indent, 0);
3719 curwin->w_cursor = old_pos;
3720 /* remember how many chars were removed */
3721 if (cnt == count && i == y_size - 1)
3722 lendiff -= (int)STRLEN(ml_get(lnum));
3723 }
3724 }
3725 }
3726
3727 error:
3728 /* Adjust marks. */
3729 if (y_type == MLINE)
3730 {
3731 curbuf->b_op_start.col = 0;
3732 if (dir == FORWARD)
3733 curbuf->b_op_start.lnum++;
3734 }
3735 mark_adjust(curbuf->b_op_start.lnum + (y_type == MCHAR),
3736 (linenr_T)MAXLNUM, nr_lines, 0L);
3737
3738 /* note changed text for displaying and folding */
3739 if (y_type == MCHAR)
3740 changed_lines(curwin->w_cursor.lnum, col,
3741 curwin->w_cursor.lnum + 1, nr_lines);
3742 else
3743 changed_lines(curbuf->b_op_start.lnum, 0,
3744 curbuf->b_op_start.lnum, nr_lines);
3745
3746 /* put '] mark at last inserted character */
3747 curbuf->b_op_end.lnum = lnum;
3748 /* correct length for change in indent */
3749 col = (colnr_T)STRLEN(y_array[y_size - 1]) - lendiff;
3750 if (col > 1)
3751 curbuf->b_op_end.col = col - 1;
3752 else
3753 curbuf->b_op_end.col = 0;
3754
3755 if (flags & PUT_CURSLINE)
3756 {
3757 /* ":put": put cursor on last inserted line */
3758 curwin->w_cursor.lnum = lnum;
3759 beginline(BL_WHITE | BL_FIX);
3760 }
3761 else if (flags & PUT_CURSEND)
3762 {
3763 /* put cursor after inserted text */
3764 if (y_type == MLINE)
3765 {
3766 if (lnum >= curbuf->b_ml.ml_line_count)
3767 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
3768 else
3769 curwin->w_cursor.lnum = lnum + 1;
3770 curwin->w_cursor.col = 0;
3771 }
3772 else
3773 {
3774 curwin->w_cursor.lnum = lnum;
3775 curwin->w_cursor.col = col;
3776 }
3777 }
3778 else if (y_type == MLINE)
3779 {
3780 /* put cursor on first non-blank in first inserted line */
3781 curwin->w_cursor.col = 0;
3782 if (dir == FORWARD)
3783 ++curwin->w_cursor.lnum;
3784 beginline(BL_WHITE | BL_FIX);
3785 }
3786 else /* put cursor on first inserted character */
3787 curwin->w_cursor = new_cursor;
3788 }
3789 }
3790
3791 msgmore(nr_lines);
3792 curwin->w_set_curswant = TRUE;
3793
3794 end:
3795 if (allocated)
3796 vim_free(insert_string);
3797 if (regname == '=')
3798 vim_free(y_array);
3799
3800 /* If the cursor is past the end of the line put it at the end. */
3801 adjust_cursor_eol();
3802 }
3803
3804 /*
3805 * When the cursor is on the NUL past the end of the line and it should not be
3806 * there move it left.
3807 */
3808 void
3809 adjust_cursor_eol()
3810 {
3811 if (curwin->w_cursor.col > 0
3812 && gchar_cursor() == NUL
3813 #ifdef FEAT_VIRTUALEDIT
3814 && (ve_flags & VE_ONEMORE) == 0
3815 #endif
3816 && !(restart_edit || (State & INSERT)))
3817 {
3818 /* Put the cursor on the last character in the line. */
3819 dec_cursor();
3820
3821 #ifdef FEAT_VIRTUALEDIT
3822 if (ve_flags == VE_ALL)
3823 {
3824 colnr_T scol, ecol;
3825
3826 /* Coladd is set to the width of the last character. */
3827 getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
3828 curwin->w_cursor.coladd = ecol - scol + 1;
3829 }
3830 #endif
3831 }
3832 }
3833
3834 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT) || defined(PROTO)
3835 /*
3836 * Return TRUE if lines starting with '#' should be left aligned.
3837 */
3838 int
3839 preprocs_left()
3840 {
3841 return
3842 # ifdef FEAT_SMARTINDENT
3843 # ifdef FEAT_CINDENT
3844 (curbuf->b_p_si && !curbuf->b_p_cin) ||
3845 # else
3846 curbuf->b_p_si
3847 # endif
3848 # endif
3849 # ifdef FEAT_CINDENT
3850 (curbuf->b_p_cin && in_cinkeys('#', ' ', TRUE))
3851 # endif
3852 ;
3853 }
3854 #endif
3855
3856 /* Return the character name of the register with the given number */
3857 int
3858 get_register_name(num)
3859 int num;
3860 {
3861 if (num == -1)
3862 return '"';
3863 else if (num < 10)
3864 return num + '0';
3865 else if (num == DELETION_REGISTER)
3866 return '-';
3867 #ifdef FEAT_CLIPBOARD
3868 else if (num == STAR_REGISTER)
3869 return '*';
3870 else if (num == PLUS_REGISTER)
3871 return '+';
3872 #endif
3873 else
3874 {
3875 #ifdef EBCDIC
3876 int i;
3877
3878 /* EBCDIC is really braindead ... */
3879 i = 'a' + (num - 10);
3880 if (i > 'i')
3881 i += 7;
3882 if (i > 'r')
3883 i += 8;
3884 return i;
3885 #else
3886 return num + 'a' - 10;
3887 #endif
3888 }
3889 }
3890
3891 /*
3892 * ":dis" and ":registers": Display the contents of the yank registers.
3893 */
3894 void
3895 ex_display(eap)
3896 exarg_T *eap;
3897 {
3898 int i, n;
3899 long j;
3900 char_u *p;
3901 struct yankreg *yb;
3902 int name;
3903 int attr;
3904 char_u *arg = eap->arg;
3905 #ifdef FEAT_MBYTE
3906 int clen;
3907 #else
3908 # define clen 1
3909 #endif
3910
3911 if (arg != NULL && *arg == NUL)
3912 arg = NULL;
3913 attr = hl_attr(HLF_8);
3914
3915 /* Highlight title */
3916 MSG_PUTS_TITLE(_("\n--- Registers ---"));
3917 for (i = -1; i < NUM_REGISTERS && !got_int; ++i)
3918 {
3919 name = get_register_name(i);
3920 if (arg != NULL && vim_strchr(arg, name) == NULL)
3921 continue; /* did not ask for this register */
3922
3923 #ifdef FEAT_CLIPBOARD
3924 /* Adjust register name for "unnamed" in 'clipboard'.
3925 * When it's a clipboard register, fill it with the current contents
3926 * of the clipboard. */
3927 adjust_clip_reg(&name);
3928 (void)may_get_selection(name);
3929 #endif
3930
3931 if (i == -1)
3932 {
3933 if (y_previous != NULL)
3934 yb = y_previous;
3935 else
3936 yb = &(y_regs[0]);
3937 }
3938 else
3939 yb = &(y_regs[i]);
3940 if (yb->y_array != NULL)
3941 {
3942 msg_putchar('\n');
3943 msg_putchar('"');
3944 msg_putchar(name);
3945 MSG_PUTS(" ");
3946
3947 n = (int)Columns - 6;
3948 for (j = 0; j < yb->y_size && n > 1; ++j)
3949 {
3950 if (j)
3951 {
3952 MSG_PUTS_ATTR("^J", attr);
3953 n -= 2;
3954 }
3955 for (p = yb->y_array[j]; *p && (n -= ptr2cells(p)) >= 0; ++p)
3956 {
3957 #ifdef FEAT_MBYTE
3958 clen = (*mb_ptr2len)(p);
3959 #endif
3960 msg_outtrans_len(p, clen);
3961 #ifdef FEAT_MBYTE
3962 p += clen - 1;
3963 #endif
3964 }
3965 }
3966 if (n > 1 && yb->y_type == MLINE)
3967 MSG_PUTS_ATTR("^J", attr);
3968 out_flush(); /* show one line at a time */
3969 }
3970 ui_breakcheck();
3971 }
3972
3973 /*
3974 * display last inserted text
3975 */
3976 if ((p = get_last_insert()) != NULL
3977 && (arg == NULL || vim_strchr(arg, '.') != NULL) && !got_int)
3978 {
3979 MSG_PUTS("\n\". ");
3980 dis_msg(p, TRUE);
3981 }
3982
3983 /*
3984 * display last command line
3985 */
3986 if (last_cmdline != NULL && (arg == NULL || vim_strchr(arg, ':') != NULL)
3987 && !got_int)
3988 {
3989 MSG_PUTS("\n\": ");
3990 dis_msg(last_cmdline, FALSE);
3991 }
3992
3993 /*
3994 * display current file name
3995 */
3996 if (curbuf->b_fname != NULL
3997 && (arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int)
3998 {
3999 MSG_PUTS("\n\"% ");
4000 dis_msg(curbuf->b_fname, FALSE);
4001 }
4002
4003 /*
4004 * display alternate file name
4005 */
4006 if ((arg == NULL || vim_strchr(arg, '%') != NULL) && !got_int)
4007 {
4008 char_u *fname;
4009 linenr_T dummy;
4010
4011 if (buflist_name_nr(0, &fname, &dummy) != FAIL)
4012 {
4013 MSG_PUTS("\n\"# ");
4014 dis_msg(fname, FALSE);
4015 }
4016 }
4017
4018 /*
4019 * display last search pattern
4020 */
4021 if (last_search_pat() != NULL
4022 && (arg == NULL || vim_strchr(arg, '/') != NULL) && !got_int)
4023 {
4024 MSG_PUTS("\n\"/ ");
4025 dis_msg(last_search_pat(), FALSE);
4026 }
4027
4028 #ifdef FEAT_EVAL
4029 /*
4030 * display last used expression
4031 */
4032 if (expr_line != NULL && (arg == NULL || vim_strchr(arg, '=') != NULL)
4033 && !got_int)
4034 {
4035 MSG_PUTS("\n\"= ");
4036 dis_msg(expr_line, FALSE);
4037 }
4038 #endif
4039 }
4040
4041 /*
4042 * display a string for do_dis()
4043 * truncate at end of screen line
4044 */
4045 static void
4046 dis_msg(p, skip_esc)
4047 char_u *p;
4048 int skip_esc; /* if TRUE, ignore trailing ESC */
4049 {
4050 int n;
4051 #ifdef FEAT_MBYTE
4052 int l;
4053 #endif
4054
4055 n = (int)Columns - 6;
4056 while (*p != NUL
4057 && !(*p == ESC && skip_esc && *(p + 1) == NUL)
4058 && (n -= ptr2cells(p)) >= 0)
4059 {
4060 #ifdef FEAT_MBYTE
4061 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
4062 {
4063 msg_outtrans_len(p, l);
4064 p += l;
4065 }
4066 else
4067 #endif
4068 msg_outtrans_len(p++, 1);
4069 }
4070 ui_breakcheck();
4071 }
4072
4073 /*
4074 * join 'count' lines (minimal 2), including u_save()
4075 */
4076 void
4077 do_do_join(count, insert_space)
4078 long count;
4079 int insert_space;
4080 {
4081 colnr_T col = MAXCOL;
4082
4083 if (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
4084 (linenr_T)(curwin->w_cursor.lnum + count)) == FAIL)
4085 return;
4086
4087 while (--count > 0)
4088 {
4089 line_breakcheck();
4090 if (got_int || do_join(insert_space) == FAIL)
4091 {
4092 beep_flush();
4093 break;
4094 }
4095 if (col == MAXCOL && vim_strchr(p_cpo, CPO_JOINCOL) != NULL)
4096 col = curwin->w_cursor.col;
4097 }
4098
4099 /* Vi compatible: use the column of the first join */
4100 if (col != MAXCOL && vim_strchr(p_cpo, CPO_JOINCOL) != NULL)
4101 curwin->w_cursor.col = col;
4102
4103 #if 0
4104 /*
4105 * Need to update the screen if the line where the cursor is became too
4106 * long to fit on the screen.
4107 */
4108 update_topline_redraw();
4109 #endif
4110 }
4111
4112 /*
4113 * Join two lines at the cursor position.
4114 * "redraw" is TRUE when the screen should be updated.
4115 * Caller must have setup for undo.
4116 *
4117 * return FAIL for failure, OK otherwise
4118 */
4119 int
4120 do_join(insert_space)
4121 int insert_space;
4122 {
4123 char_u *curr;
4124 char_u *next, *next_start;
4125 char_u *newp;
4126 int endcurr1, endcurr2;
4127 int currsize; /* size of the current line */
4128 int nextsize; /* size of the next line */
4129 int spaces; /* number of spaces to insert */
4130 linenr_T t;
4131
4132 if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4133 return FAIL; /* can't join on last line */
4134
4135 curr = ml_get_curline();
4136 currsize = (int)STRLEN(curr);
4137 endcurr1 = endcurr2 = NUL;
4138 if (insert_space && currsize > 0)
4139 {
4140 #ifdef FEAT_MBYTE
4141 if (has_mbyte)
4142 {
4143 next = curr + currsize;
4144 mb_ptr_back(curr, next);
4145 endcurr1 = (*mb_ptr2char)(next);
4146 if (next > curr)
4147 {
4148 mb_ptr_back(curr, next);
4149 endcurr2 = (*mb_ptr2char)(next);
4150 }
4151 }
4152 else
4153 #endif
4154 {
4155 endcurr1 = *(curr + currsize - 1);
4156 if (currsize > 1)
4157 endcurr2 = *(curr + currsize - 2);
4158 }
4159 }
4160
4161 next = next_start = ml_get((linenr_T)(curwin->w_cursor.lnum + 1));
4162 spaces = 0;
4163 if (insert_space)
4164 {
4165 next = skipwhite(next);
4166 if (*next != ')' && currsize != 0 && endcurr1 != TAB
4167 #ifdef FEAT_MBYTE
4168 && (!has_format_option(FO_MBYTE_JOIN)
4169 || (mb_ptr2char(next) < 0x100 && endcurr1 < 0x100))
4170 && (!has_format_option(FO_MBYTE_JOIN2)
4171 || mb_ptr2char(next) < 0x100 || endcurr1 < 0x100)
4172 #endif
4173 )
4174 {
4175 /* don't add a space if the line is ending in a space */
4176 if (endcurr1 == ' ')
4177 endcurr1 = endcurr2;
4178 else
4179 ++spaces;
4180 /* extra space when 'joinspaces' set and line ends in '.' */
4181 if ( p_js
4182 && (endcurr1 == '.'
4183 || (vim_strchr(p_cpo, CPO_JOINSP) == NULL
4184 && (endcurr1 == '?' || endcurr1 == '!'))))
4185 ++spaces;
4186 }
4187 }
4188 nextsize = (int)STRLEN(next);
4189
4190 newp = alloc_check((unsigned)(currsize + nextsize + spaces + 1));
4191 if (newp == NULL)
4192 return FAIL;
4193
4194 /*
4195 * Insert the next line first, because we already have that pointer.
4196 * Curr has to be obtained again, because getting next will have
4197 * invalidated it.
4198 */
4199 mch_memmove(newp + currsize + spaces, next, (size_t)(nextsize + 1));
4200
4201 curr = ml_get_curline();
4202 mch_memmove(newp, curr, (size_t)currsize);
4203
4204 copy_spaces(newp + currsize, (size_t)spaces);
4205
4206 ml_replace(curwin->w_cursor.lnum, newp, FALSE);
4207
4208 /* Only report the change in the first line here, del_lines() will report
4209 * the deleted line. */
4210 changed_lines(curwin->w_cursor.lnum, currsize,
4211 curwin->w_cursor.lnum + 1, 0L);
4212
4213 /*
4214 * Delete the following line. To do this we move the cursor there
4215 * briefly, and then move it back. After del_lines() the cursor may
4216 * have moved up (last line deleted), so the current lnum is kept in t.
4217 *
4218 * Move marks from the deleted line to the joined line, adjusting the
4219 * column. This is not Vi compatible, but Vi deletes the marks, thus that
4220 * should not really be a problem.
4221 */
4222 t = curwin->w_cursor.lnum;
4223 mark_col_adjust(t + 1, (colnr_T)0, (linenr_T)-1,
4224 (long)(currsize + spaces - (next - next_start)));
4225 ++curwin->w_cursor.lnum;
4226 del_lines(1L, FALSE);
4227 curwin->w_cursor.lnum = t;
4228
4229 /*
4230 * go to first character of the joined line
4231 */
4232 curwin->w_cursor.col = currsize;
4233 check_cursor_col();
4234 #ifdef FEAT_VIRTUALEDIT
4235 curwin->w_cursor.coladd = 0;
4236 #endif
4237 curwin->w_set_curswant = TRUE;
4238
4239 return OK;
4240 }
4241
4242 #ifdef FEAT_COMMENTS
4243 /*
4244 * Return TRUE if the two comment leaders given are the same. "lnum" is
4245 * the first line. White-space is ignored. Note that the whole of
4246 * 'leader1' must match 'leader2_len' characters from 'leader2' -- webb
4247 */
4248 static int
4249 same_leader(lnum, leader1_len, leader1_flags, leader2_len, leader2_flags)
4250 linenr_T lnum;
4251 int leader1_len;
4252 char_u *leader1_flags;
4253 int leader2_len;
4254 char_u *leader2_flags;
4255 {
4256 int idx1 = 0, idx2 = 0;
4257 char_u *p;
4258 char_u *line1;
4259 char_u *line2;
4260
4261 if (leader1_len == 0)
4262 return (leader2_len == 0);
4263
4264 /*
4265 * If first leader has 'f' flag, the lines can be joined only if the
4266 * second line does not have a leader.
4267 * If first leader has 'e' flag, the lines can never be joined.
4268 * If fist leader has 's' flag, the lines can only be joined if there is
4269 * some text after it and the second line has the 'm' flag.
4270 */
4271 if (leader1_flags != NULL)
4272 {
4273 for (p = leader1_flags; *p && *p != ':'; ++p)
4274 {
4275 if (*p == COM_FIRST)
4276 return (leader2_len == 0);
4277 if (*p == COM_END)
4278 return FALSE;
4279 if (*p == COM_START)
4280 {
4281 if (*(ml_get(lnum) + leader1_len) == NUL)
4282 return FALSE;
4283 if (leader2_flags == NULL || leader2_len == 0)
4284 return FALSE;
4285 for (p = leader2_flags; *p && *p != ':'; ++p)
4286 if (*p == COM_MIDDLE)
4287 return TRUE;
4288 return FALSE;
4289 }
4290 }
4291 }
4292
4293 /*
4294 * Get current line and next line, compare the leaders.
4295 * The first line has to be saved, only one line can be locked at a time.
4296 */
4297 line1 = vim_strsave(ml_get(lnum));
4298 if (line1 != NULL)
4299 {
4300 for (idx1 = 0; vim_iswhite(line1[idx1]); ++idx1)
4301 ;
4302 line2 = ml_get(lnum + 1);
4303 for (idx2 = 0; idx2 < leader2_len; ++idx2)
4304 {
4305 if (!vim_iswhite(line2[idx2]))
4306 {
4307 if (line1[idx1++] != line2[idx2])
4308 break;
4309 }
4310 else
4311 while (vim_iswhite(line1[idx1]))
4312 ++idx1;
4313 }
4314 vim_free(line1);
4315 }
4316 return (idx2 == leader2_len && idx1 == leader1_len);
4317 }
4318 #endif
4319
4320 /*
4321 * implementation of the format operator 'gq'
4322 */
4323 void
4324 op_format(oap, keep_cursor)
4325 oparg_T *oap;
4326 int keep_cursor; /* keep cursor on same text char */
4327 {
4328 long old_line_count = curbuf->b_ml.ml_line_count;
4329
4330 /* Place the cursor where the "gq" or "gw" command was given, so that "u"
4331 * can put it back there. */
4332 curwin->w_cursor = oap->cursor_start;
4333
4334 if (u_save((linenr_T)(oap->start.lnum - 1),
4335 (linenr_T)(oap->end.lnum + 1)) == FAIL)
4336 return;
4337 curwin->w_cursor = oap->start;
4338
4339 #ifdef FEAT_VISUAL
4340 if (oap->is_VIsual)
4341 /* When there is no change: need to remove the Visual selection */
4342 redraw_curbuf_later(INVERTED);
4343 #endif
4344
4345 /* Set '[ mark at the start of the formatted area */
4346 curbuf->b_op_start = oap->start;
4347
4348 /* For "gw" remember the cursor position and put it back below (adjusted
4349 * for joined and split lines). */
4350 if (keep_cursor)
4351 saved_cursor = oap->cursor_start;
4352
4353 format_lines(oap->line_count);
4354
4355 /*
4356 * Leave the cursor at the first non-blank of the last formatted line.
4357 * If the cursor was moved one line back (e.g. with "Q}") go to the next
4358 * line, so "." will do the next lines.
4359 */
4360 if (oap->end_adjusted && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
4361 ++curwin->w_cursor.lnum;
4362 beginline(BL_WHITE | BL_FIX);
4363 old_line_count = curbuf->b_ml.ml_line_count - old_line_count;
4364 msgmore(old_line_count);
4365
4366 /* put '] mark on the end of the formatted area */
4367 curbuf->b_op_end = curwin->w_cursor;
4368
4369 if (keep_cursor)
4370 {
4371 curwin->w_cursor = saved_cursor;
4372 saved_cursor.lnum = 0;
4373 }
4374
4375 #ifdef FEAT_VISUAL
4376 if (oap->is_VIsual)
4377 {
4378 win_T *wp;
4379
4380 FOR_ALL_WINDOWS(wp)
4381 {
4382 if (wp->w_old_cursor_lnum != 0)
4383 {
4384 /* When lines have been inserted or deleted, adjust the end of
4385 * the Visual area to be redrawn. */
4386 if (wp->w_old_cursor_lnum > wp->w_old_visual_lnum)
4387 wp->w_old_cursor_lnum += old_line_count;
4388 else
4389 wp->w_old_visual_lnum += old_line_count;
4390 }
4391 }
4392 }
4393 #endif
4394 }
4395
4396 #if defined(FEAT_EVAL) || defined(PROTO)
4397 /*
4398 * Implementation of the format operator 'gq' for when using 'formatexpr'.
4399 */
4400 void
4401 op_formatexpr(oap)
4402 oparg_T *oap;
4403 {
4404 # ifdef FEAT_VISUAL
4405 if (oap->is_VIsual)
4406 /* When there is no change: need to remove the Visual selection */
4407 redraw_curbuf_later(INVERTED);
4408 # endif
4409
4410 (void)fex_format(oap->start.lnum, oap->line_count, NUL);
4411 }
4412
4413 int
4414 fex_format(lnum, count, c)
4415 linenr_T lnum;
4416 long count;
4417 int c; /* character to be inserted */
4418 {
4419 int use_sandbox = was_set_insecurely((char_u *)"formatexpr",
4420 OPT_LOCAL);
4421 int r;
4422 #ifdef FEAT_MBYTE
4423 char_u buf[MB_MAXBYTES];
4424 #else
4425 char_u buf[2];
4426 #endif
4427
4428 /*
4429 * Set v:lnum to the first line number and v:count to the number of lines.
4430 * Set v:char to the character to be inserted (can be NUL).
4431 */
4432 set_vim_var_nr(VV_LNUM, lnum);
4433 set_vim_var_nr(VV_COUNT, count);
4434
4435 #ifdef FEAT_MBYTE
4436 if (has_mbyte)
4437 buf[(*mb_char2bytes)(c, buf)] = NUL;
4438 else
4439 #endif
4440 {
4441 buf[0] = c;
4442 buf[1] = NUL;
4443 }
4444 set_vim_var_string(VV_CHAR, buf, -1);
4445
4446 /*
4447 * Evaluate the function.
4448 */
4449 if (use_sandbox)
4450 ++sandbox;
4451 r = eval_to_number(curbuf->b_p_fex);
4452 if (use_sandbox)
4453 --sandbox;
4454
4455 set_vim_var_string(VV_CHAR, NULL, -1);
4456
4457 return r;
4458 }
4459 #endif
4460
4461 /*
4462 * Format "line_count" lines, starting at the cursor position.
4463 * When "line_count" is negative, format until the end of the paragraph.
4464 * Lines after the cursor line are saved for undo, caller must have saved the
4465 * first line.
4466 */
4467 void
4468 format_lines(line_count)
4469 linenr_T line_count;
4470 {
4471 int max_len;
4472 int is_not_par; /* current line not part of parag. */
4473 int next_is_not_par; /* next line not part of paragraph */
4474 int is_end_par; /* at end of paragraph */
4475 int prev_is_end_par = FALSE;/* prev. line not part of parag. */
4476 int next_is_start_par = FALSE;
4477 #ifdef FEAT_COMMENTS
4478 int leader_len = 0; /* leader len of current line */
4479 int next_leader_len; /* leader len of next line */
4480 char_u *leader_flags = NULL; /* flags for leader of current line */
4481 char_u *next_leader_flags; /* flags for leader of next line */
4482 int do_comments; /* format comments */
4483 #endif
4484 int advance = TRUE;
4485 int second_indent = -1;
4486 int do_second_indent;
4487 int do_number_indent;
4488 int do_trail_white;
4489 int first_par_line = TRUE;
4490 int smd_save;
4491 long count;
4492 int need_set_indent = TRUE; /* set indent of next paragraph */
4493 int force_format = FALSE;
4494 int old_State = State;
4495
4496 /* length of a line to force formatting: 3 * 'tw' */
4497 max_len = comp_textwidth(TRUE) * 3;
4498
4499 /* check for 'q', '2' and '1' in 'formatoptions' */
4500 #ifdef FEAT_COMMENTS
4501 do_comments = has_format_option(FO_Q_COMS);
4502 #endif
4503 do_second_indent = has_format_option(FO_Q_SECOND);
4504 do_number_indent = has_format_option(FO_Q_NUMBER);
4505 do_trail_white = has_format_option(FO_WHITE_PAR);
4506
4507 /*
4508 * Get info about the previous and current line.
4509 */
4510 if (curwin->w_cursor.lnum > 1)
4511 is_not_par = fmt_check_par(curwin->w_cursor.lnum - 1
4512 #ifdef FEAT_COMMENTS
4513 , &leader_len, &leader_flags, do_comments
4514 #endif
4515 );
4516 else
4517 is_not_par = TRUE;
4518 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum
4519 #ifdef FEAT_COMMENTS
4520 , &next_leader_len, &next_leader_flags, do_comments
4521 #endif
4522 );
4523 is_end_par = (is_not_par || next_is_not_par);
4524 if (!is_end_par && do_trail_white)
4525 is_end_par = !ends_in_white(curwin->w_cursor.lnum - 1);
4526
4527 curwin->w_cursor.lnum--;
4528 for (count = line_count; count != 0 && !got_int; --count)
4529 {
4530 /*
4531 * Advance to next paragraph.
4532 */
4533 if (advance)
4534 {
4535 curwin->w_cursor.lnum++;
4536 prev_is_end_par = is_end_par;
4537 is_not_par = next_is_not_par;
4538 #ifdef FEAT_COMMENTS
4539 leader_len = next_leader_len;
4540 leader_flags = next_leader_flags;
4541 #endif
4542 }
4543
4544 /*
4545 * The last line to be formatted.
4546 */
4547 if (count == 1 || curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4548 {
4549 next_is_not_par = TRUE;
4550 #ifdef FEAT_COMMENTS
4551 next_leader_len = 0;
4552 next_leader_flags = NULL;
4553 #endif
4554 }
4555 else
4556 {
4557 next_is_not_par = fmt_check_par(curwin->w_cursor.lnum + 1
4558 #ifdef FEAT_COMMENTS
4559 , &next_leader_len, &next_leader_flags, do_comments
4560 #endif
4561 );
4562 if (do_number_indent)
4563 next_is_start_par =
4564 (get_number_indent(curwin->w_cursor.lnum + 1) > 0);
4565 }
4566 advance = TRUE;
4567 is_end_par = (is_not_par || next_is_not_par || next_is_start_par);
4568 if (!is_end_par && do_trail_white)
4569 is_end_par = !ends_in_white(curwin->w_cursor.lnum);
4570
4571 /*
4572 * Skip lines that are not in a paragraph.
4573 */
4574 if (is_not_par)
4575 {
4576 if (line_count < 0)
4577 break;
4578 }
4579 else
4580 {
4581 /*
4582 * For the first line of a paragraph, check indent of second line.
4583 * Don't do this for comments and empty lines.
4584 */
4585 if (first_par_line
4586 && (do_second_indent || do_number_indent)
4587 && prev_is_end_par
4588 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count
4589 #ifdef FEAT_COMMENTS
4590 && leader_len == 0
4591 && next_leader_len == 0
4592 #endif
4593 )
4594 {
4595 if (do_second_indent
4596 && !lineempty(curwin->w_cursor.lnum + 1))
4597 second_indent = get_indent_lnum(curwin->w_cursor.lnum + 1);
4598 else if (do_number_indent)
4599 second_indent = get_number_indent(curwin->w_cursor.lnum);
4600 }
4601
4602 /*
4603 * When the comment leader changes, it's the end of the paragraph.
4604 */
4605 if (curwin->w_cursor.lnum >= curbuf->b_ml.ml_line_count
4606 #ifdef FEAT_COMMENTS
4607 || !same_leader(curwin->w_cursor.lnum,
4608 leader_len, leader_flags,
4609 next_leader_len, next_leader_flags)
4610 #endif
4611 )
4612 is_end_par = TRUE;
4613
4614 /*
4615 * If we have got to the end of a paragraph, or the line is
4616 * getting long, format it.
4617 */
4618 if (is_end_par || force_format)
4619 {
4620 if (need_set_indent)
4621 /* replace indent in first line with minimal number of
4622 * tabs and spaces, according to current options */
4623 (void)set_indent(get_indent(), SIN_CHANGED);
4624
4625 /* put cursor on last non-space */
4626 State = NORMAL; /* don't go past end-of-line */
4627 coladvance((colnr_T)MAXCOL);
4628 while (curwin->w_cursor.col && vim_isspace(gchar_cursor()))
4629 dec_cursor();
4630
4631 /* do the formatting, without 'showmode' */
4632 State = INSERT; /* for open_line() */
4633 smd_save = p_smd;
4634 p_smd = FALSE;
4635 insertchar(NUL, INSCHAR_FORMAT
4636 #ifdef FEAT_COMMENTS
4637 + (do_comments ? INSCHAR_DO_COM : 0)
4638 #endif
4639 , second_indent);
4640 State = old_State;
4641 p_smd = smd_save;
4642 second_indent = -1;
4643 /* at end of par.: need to set indent of next par. */
4644 need_set_indent = is_end_par;
4645 if (is_end_par)
4646 {
4647 /* When called with a negative line count, break at the
4648 * end of the paragraph. */
4649 if (line_count < 0)
4650 break;
4651 first_par_line = TRUE;
4652 }
4653 force_format = FALSE;
4654 }
4655
4656 /*
4657 * When still in same paragraph, join the lines together. But
4658 * first delete the comment leader from the second line.
4659 */
4660 if (!is_end_par)
4661 {
4662 advance = FALSE;
4663 curwin->w_cursor.lnum++;
4664 curwin->w_cursor.col = 0;
4665 if (line_count < 0 && u_save_cursor() == FAIL)
4666 break;
4667 #ifdef FEAT_COMMENTS
4668 (void)del_bytes((long)next_leader_len, FALSE, FALSE);
4669 if (next_leader_len > 0)
4670 mark_col_adjust(curwin->w_cursor.lnum, (colnr_T)0, 0L,
4671 (long)-next_leader_len);
4672 #endif
4673 curwin->w_cursor.lnum--;
4674 if (do_join(TRUE) == FAIL)
4675 {
4676 beep_flush();
4677 break;
4678 }
4679 first_par_line = FALSE;
4680 /* If the line is getting long, format it next time */
4681 if (STRLEN(ml_get_curline()) > (size_t)max_len)
4682 force_format = TRUE;
4683 else
4684 force_format = FALSE;
4685 }
4686 }
4687 line_breakcheck();
4688 }
4689 }
4690
4691 /*
4692 * Return TRUE if line "lnum" ends in a white character.
4693 */
4694 static int
4695 ends_in_white(lnum)
4696 linenr_T lnum;
4697 {
4698 char_u *s = ml_get(lnum);
4699 size_t l;
4700
4701 if (*s == NUL)
4702 return FALSE;
4703 /* Don't use STRLEN() inside vim_iswhite(), SAS/C complains: "macro
4704 * invocation may call function multiple times". */
4705 l = STRLEN(s) - 1;
4706 return vim_iswhite(s[l]);
4707 }
4708
4709 /*
4710 * Blank lines, and lines containing only the comment leader, are left
4711 * untouched by the formatting. The function returns TRUE in this
4712 * case. It also returns TRUE when a line starts with the end of a comment
4713 * ('e' in comment flags), so that this line is skipped, and not joined to the
4714 * previous line. A new paragraph starts after a blank line, or when the
4715 * comment leader changes -- webb.
4716 */
4717 #ifdef FEAT_COMMENTS
4718 static int
4719 fmt_check_par(lnum, leader_len, leader_flags, do_comments)
4720 linenr_T lnum;
4721 int *leader_len;
4722 char_u **leader_flags;
4723 int do_comments;
4724 {
4725 char_u *flags = NULL; /* init for GCC */
4726 char_u *ptr;
4727
4728 ptr = ml_get(lnum);
4729 if (do_comments)
4730 *leader_len = get_leader_len(ptr, leader_flags, FALSE);
4731 else
4732 *leader_len = 0;
4733
4734 if (*leader_len > 0)
4735 {
4736 /*
4737 * Search for 'e' flag in comment leader flags.
4738 */
4739 flags = *leader_flags;
4740 while (*flags && *flags != ':' && *flags != COM_END)
4741 ++flags;
4742 }
4743
4744 return (*skipwhite(ptr + *leader_len) == NUL
4745 || (*leader_len > 0 && *flags == COM_END)
4746 || startPS(lnum, NUL, FALSE));
4747 }
4748 #else
4749 static int
4750 fmt_check_par(lnum)
4751 linenr_T lnum;
4752 {
4753 return (*skipwhite(ml_get(lnum)) == NUL || startPS(lnum, NUL, FALSE));
4754 }
4755 #endif
4756
4757 /*
4758 * Return TRUE when a paragraph starts in line "lnum". Return FALSE when the
4759 * previous line is in the same paragraph. Used for auto-formatting.
4760 */
4761 int
4762 paragraph_start(lnum)
4763 linenr_T lnum;
4764 {
4765 char_u *p;
4766 #ifdef FEAT_COMMENTS
4767 int leader_len = 0; /* leader len of current line */
4768 char_u *leader_flags = NULL; /* flags for leader of current line */
4769 int next_leader_len; /* leader len of next line */
4770 char_u *next_leader_flags; /* flags for leader of next line */
4771 int do_comments; /* format comments */
4772 #endif
4773
4774 if (lnum <= 1)
4775 return TRUE; /* start of the file */
4776
4777 p = ml_get(lnum - 1);
4778 if (*p == NUL)
4779 return TRUE; /* after empty line */
4780
4781 #ifdef FEAT_COMMENTS
4782 do_comments = has_format_option(FO_Q_COMS);
4783 #endif
4784 if (fmt_check_par(lnum - 1
4785 #ifdef FEAT_COMMENTS
4786 , &leader_len, &leader_flags, do_comments
4787 #endif
4788 ))
4789 return TRUE; /* after non-paragraph line */
4790
4791 if (fmt_check_par(lnum
4792 #ifdef FEAT_COMMENTS
4793 , &next_leader_len, &next_leader_flags, do_comments
4794 #endif
4795 ))
4796 return TRUE; /* "lnum" is not a paragraph line */
4797
4798 if (has_format_option(FO_WHITE_PAR) && !ends_in_white(lnum - 1))
4799 return TRUE; /* missing trailing space in previous line. */
4800
4801 if (has_format_option(FO_Q_NUMBER) && (get_number_indent(lnum) > 0))
4802 return TRUE; /* numbered item starts in "lnum". */
4803
4804 #ifdef FEAT_COMMENTS
4805 if (!same_leader(lnum - 1, leader_len, leader_flags,
4806 next_leader_len, next_leader_flags))
4807 return TRUE; /* change of comment leader. */
4808 #endif
4809
4810 return FALSE;
4811 }
4812
4813 #ifdef FEAT_VISUAL
4814 /*
4815 * prepare a few things for block mode yank/delete/tilde
4816 *
4817 * for delete:
4818 * - textlen includes the first/last char to be (partly) deleted
4819 * - start/endspaces is the number of columns that are taken by the
4820 * first/last deleted char minus the number of columns that have to be
4821 * deleted. for yank and tilde:
4822 * - textlen includes the first/last char to be wholly yanked
4823 * - start/endspaces is the number of columns of the first/last yanked char
4824 * that are to be yanked.
4825 */
4826 static void
4827 block_prep(oap, bdp, lnum, is_del)
4828 oparg_T *oap;
4829 struct block_def *bdp;
4830 linenr_T lnum;
4831 int is_del;
4832 {
4833 int incr = 0;
4834 char_u *pend;
4835 char_u *pstart;
4836 char_u *line;
4837 char_u *prev_pstart;
4838 char_u *prev_pend;
4839
4840 bdp->startspaces = 0;
4841 bdp->endspaces = 0;
4842 bdp->textlen = 0;
4843 bdp->start_vcol = 0;
4844 bdp->end_vcol = 0;
4845 #ifdef FEAT_VISUALEXTRA
4846 bdp->is_short = FALSE;
4847 bdp->is_oneChar = FALSE;
4848 bdp->pre_whitesp = 0;
4849 bdp->pre_whitesp_c = 0;
4850 bdp->end_char_vcols = 0;
4851 #endif
4852 bdp->start_char_vcols = 0;
4853
4854 line = ml_get(lnum);
4855 pstart = line;
4856 prev_pstart = line;
4857 while (bdp->start_vcol < oap->start_vcol && *pstart)
4858 {
4859 /* Count a tab for what it's worth (if list mode not on) */
4860 incr = lbr_chartabsize(pstart, (colnr_T)bdp->start_vcol);
4861 bdp->start_vcol += incr;
4862 #ifdef FEAT_VISUALEXTRA
4863 if (vim_iswhite(*pstart))
4864 {
4865 bdp->pre_whitesp += incr;
4866 bdp->pre_whitesp_c++;
4867 }
4868 else
4869 {
4870 bdp->pre_whitesp = 0;
4871 bdp->pre_whitesp_c = 0;
4872 }
4873 #endif
4874 prev_pstart = pstart;
4875 mb_ptr_adv(pstart);
4876 }
4877 bdp->start_char_vcols = incr;
4878 if (bdp->start_vcol < oap->start_vcol) /* line too short */
4879 {
4880 bdp->end_vcol = bdp->start_vcol;
4881 #ifdef FEAT_VISUALEXTRA
4882 bdp->is_short = TRUE;
4883 #endif
4884 if (!is_del || oap->op_type == OP_APPEND)
4885 bdp->endspaces = oap->end_vcol - oap->start_vcol + 1;
4886 }
4887 else
4888 {
4889 /* notice: this converts partly selected Multibyte characters to
4890 * spaces, too. */
4891 bdp->startspaces = bdp->start_vcol - oap->start_vcol;
4892 if (is_del && bdp->startspaces)
4893 bdp->startspaces = bdp->start_char_vcols - bdp->startspaces;
4894 pend = pstart;
4895 bdp->end_vcol = bdp->start_vcol;
4896 if (bdp->end_vcol > oap->end_vcol) /* it's all in one character */
4897 {
4898 #ifdef FEAT_VISUALEXTRA
4899 bdp->is_oneChar = TRUE;
4900 #endif
4901 if (oap->op_type == OP_INSERT)
4902 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces;
4903 else if (oap->op_type == OP_APPEND)
4904 {
4905 bdp->startspaces += oap->end_vcol - oap->start_vcol + 1;
4906 bdp->endspaces = bdp->start_char_vcols - bdp->startspaces;
4907 }
4908 else
4909 {
4910 bdp->startspaces = oap->end_vcol - oap->start_vcol + 1;
4911 if (is_del && oap->op_type != OP_LSHIFT)
4912 {
4913 /* just putting the sum of those two into
4914 * bdp->startspaces doesn't work for Visual replace,
4915 * so we have to split the tab in two */
4916 bdp->startspaces = bdp->start_char_vcols
4917 - (bdp->start_vcol - oap->start_vcol);
4918 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1;
4919 }
4920 }
4921 }
4922 else
4923 {
4924 prev_pend = pend;
4925 while (bdp->end_vcol <= oap->end_vcol && *pend != NUL)
4926 {
4927 /* Count a tab for what it's worth (if list mode not on) */
4928 prev_pend = pend;
4929 incr = lbr_chartabsize_adv(&pend, (colnr_T)bdp->end_vcol);
4930 bdp->end_vcol += incr;
4931 }
4932 if (bdp->end_vcol <= oap->end_vcol
4933 && (!is_del
4934 || oap->op_type == OP_APPEND
4935 || oap->op_type == OP_REPLACE)) /* line too short */
4936 {
4937 #ifdef FEAT_VISUALEXTRA
4938 bdp->is_short = TRUE;
4939 #endif
4940 /* Alternative: include spaces to fill up the block.
4941 * Disadvantage: can lead to trailing spaces when the line is
4942 * short where the text is put */
4943 /* if (!is_del || oap->op_type == OP_APPEND) */
4944 if (oap->op_type == OP_APPEND || virtual_op)
4945 bdp->endspaces = oap->end_vcol - bdp->end_vcol
4946 + oap->inclusive;
4947 else
4948 bdp->endspaces = 0; /* replace doesn't add characters */
4949 }
4950 else if (bdp->end_vcol > oap->end_vcol)
4951 {
4952 bdp->endspaces = bdp->end_vcol - oap->end_vcol - 1;
4953 if (!is_del && bdp->endspaces)
4954 {
4955 bdp->endspaces = incr - bdp->endspaces;
4956 if (pend != pstart)
4957 pend = prev_pend;
4958 }
4959 }
4960 }
4961 #ifdef FEAT_VISUALEXTRA
4962 bdp->end_char_vcols = incr;
4963 #endif
4964 if (is_del && bdp->startspaces)
4965 pstart = prev_pstart;
4966 bdp->textlen = (int)(pend - pstart);
4967 }
4968 bdp->textcol = (colnr_T) (pstart - line);
4969 bdp->textstart = pstart;
4970 }
4971 #endif /* FEAT_VISUAL */
4972
4973 #ifdef FEAT_RIGHTLEFT
4974 static void reverse_line __ARGS((char_u *s));
4975
4976 static void
4977 reverse_line(s)
4978 char_u *s;
4979 {
4980 int i, j;
4981 char_u c;
4982
4983 if ((i = (int)STRLEN(s) - 1) <= 0)
4984 return;
4985
4986 curwin->w_cursor.col = i - curwin->w_cursor.col;
4987 for (j = 0; j < i; j++, i--)
4988 {
4989 c = s[i]; s[i] = s[j]; s[j] = c;
4990 }
4991 }
4992
4993 # define RLADDSUBFIX(ptr) if (curwin->w_p_rl) reverse_line(ptr);
4994 #else
4995 # define RLADDSUBFIX(ptr)
4996 #endif
4997
4998 /*
4999 * add or subtract 'Prenum1' from a number in a line
5000 * 'command' is CTRL-A for add, CTRL-X for subtract
5001 *
5002 * return FAIL for failure, OK otherwise
5003 */
5004 int
5005 do_addsub(command, Prenum1)
5006 int command;
5007 linenr_T Prenum1;
5008 {
5009 int col;
5010 char_u *buf1;
5011 char_u buf2[NUMBUFLEN];
5012 int hex; /* 'X' or 'x': hex; '0': octal */
5013 static int hexupper = FALSE; /* 0xABC */
5014 unsigned long n;
5015 long_u oldn;
5016 char_u *ptr;
5017 int c;
5018 int length = 0; /* character length of the number */
5019 int todel;
5020 int dohex;
5021 int dooct;
5022 int doalp;
5023 int firstdigit;
5024 int negative;
5025 int subtract;
5026
5027 dohex = (vim_strchr(curbuf->b_p_nf, 'x') != NULL); /* "heX" */
5028 dooct = (vim_strchr(curbuf->b_p_nf, 'o') != NULL); /* "Octal" */
5029 doalp = (vim_strchr(curbuf->b_p_nf, 'p') != NULL); /* "alPha" */
5030
5031 ptr = ml_get_curline();
5032 RLADDSUBFIX(ptr);
5033
5034 /*
5035 * First check if we are on a hexadecimal number, after the "0x".
5036 */
5037 col = curwin->w_cursor.col;
5038 if (dohex)
5039 while (col > 0 && vim_isxdigit(ptr[col]))
5040 --col;
5041 if ( dohex
5042 && col > 0
5043 && (ptr[col] == 'X'
5044 || ptr[col] == 'x')
5045 && ptr[col - 1] == '0'
5046 && vim_isxdigit(ptr[col + 1]))
5047 {
5048 /*
5049 * Found hexadecimal number, move to its start.
5050 */
5051 --col;
5052 }
5053 else
5054 {
5055 /*
5056 * Search forward and then backward to find the start of number.
5057 */
5058 col = curwin->w_cursor.col;
5059
5060 while (ptr[col] != NUL
5061 && !vim_isdigit(ptr[col])
5062 && !(doalp && ASCII_ISALPHA(ptr[col])))
5063 ++col;
5064
5065 while (col > 0
5066 && vim_isdigit(ptr[col - 1])
5067 && !(doalp && ASCII_ISALPHA(ptr[col])))
5068 --col;
5069 }
5070
5071 /*
5072 * If a number was found, and saving for undo works, replace the number.
5073 */
5074 firstdigit = ptr[col];
5075 RLADDSUBFIX(ptr);
5076 if ((!VIM_ISDIGIT(firstdigit) && !(doalp && ASCII_ISALPHA(firstdigit)))
5077 || u_save_cursor() != OK)
5078 {
5079 beep_flush();
5080 return FAIL;
5081 }
5082
5083 /* get ptr again, because u_save() may have changed it */
5084 ptr = ml_get_curline();
5085 RLADDSUBFIX(ptr);
5086
5087 if (doalp && ASCII_ISALPHA(firstdigit))
5088 {
5089 /* decrement or increment alphabetic character */
5090 if (command == Ctrl_X)
5091 {
5092 if (CharOrd(firstdigit) < Prenum1)
5093 {
5094 if (isupper(firstdigit))
5095 firstdigit = 'A';
5096 else
5097 firstdigit = 'a';
5098 }
5099 else
5100 #ifdef EBCDIC
5101 firstdigit = EBCDIC_CHAR_ADD(firstdigit, -Prenum1);
5102 #else
5103 firstdigit -= Prenum1;
5104 #endif
5105 }
5106 else
5107 {
5108 if (26 - CharOrd(firstdigit) - 1 < Prenum1)
5109 {
5110 if (isupper(firstdigit))
5111 firstdigit = 'Z';
5112 else
5113 firstdigit = 'z';
5114 }
5115 else
5116 #ifdef EBCDIC
5117 firstdigit = EBCDIC_CHAR_ADD(firstdigit, Prenum1);
5118 #else
5119 firstdigit += Prenum1;
5120 #endif
5121 }
5122 curwin->w_cursor.col = col;
5123 (void)del_char(FALSE);
5124 ins_char(firstdigit);
5125 }
5126 else
5127 {
5128 negative = FALSE;
5129 if (col > 0 && ptr[col - 1] == '-') /* negative number */
5130 {
5131 --col;
5132 negative = TRUE;
5133 }
5134
5135 /* get the number value (unsigned) */
5136 vim_str2nr(ptr + col, &hex, &length, dooct, dohex, NULL, &n);
5137
5138 /* ignore leading '-' for hex and octal numbers */
5139 if (hex && negative)
5140 {
5141 ++col;
5142 --length;
5143 negative = FALSE;
5144 }
5145
5146 /* add or subtract */
5147 subtract = FALSE;
5148 if (command == Ctrl_X)
5149 subtract ^= TRUE;
5150 if (negative)
5151 subtract ^= TRUE;
5152
5153 oldn = n;
5154 if (subtract)
5155 n -= (unsigned long)Prenum1;
5156 else
5157 n += (unsigned long)Prenum1;
5158
5159 /* handle wraparound for decimal numbers */
5160 if (!hex)
5161 {
5162 if (subtract)
5163 {
5164 if (n > oldn)
5165 {
5166 n = 1 + (n ^ (unsigned long)-1);
5167 negative ^= TRUE;
5168 }
5169 }
5170 else /* add */
5171 {
5172 if (n < oldn)
5173 {
5174 n = (n ^ (unsigned long)-1);
5175 negative ^= TRUE;
5176 }
5177 }
5178 if (n == 0)
5179 negative = FALSE;
5180 }
5181
5182 /*
5183 * Delete the old number.
5184 */
5185 curwin->w_cursor.col = col;
5186 todel = length;
5187 c = gchar_cursor();
5188 /*
5189 * Don't include the '-' in the length, only the length of the part
5190 * after it is kept the same.
5191 */
5192 if (c == '-')
5193 --length;
5194 while (todel-- > 0)
5195 {
5196 if (c < 0x100 && isalpha(c))
5197 {
5198 if (isupper(c))
5199 hexupper = TRUE;
5200 else
5201 hexupper = FALSE;
5202 }
5203 /* del_char() will mark line needing displaying */
5204 (void)del_char(FALSE);
5205 c = gchar_cursor();
5206 }
5207
5208 /*
5209 * Prepare the leading characters in buf1[].
5210 * When there are many leading zeros it could be very long. Allocate
5211 * a bit too much.
5212 */
5213 buf1 = alloc((unsigned)length + NUMBUFLEN);
5214 if (buf1 == NULL)
5215 return FAIL;
5216 ptr = buf1;
5217 if (negative)
5218 {
5219 *ptr++ = '-';
5220 }
5221 if (hex)
5222 {
5223 *ptr++ = '0';
5224 --length;
5225 }
5226 if (hex == 'x' || hex == 'X')
5227 {
5228 *ptr++ = hex;
5229 --length;
5230 }
5231
5232 /*
5233 * Put the number characters in buf2[].
5234 */
5235 if (hex == 0)
5236 sprintf((char *)buf2, "%lu", n);
5237 else if (hex == '0')
5238 sprintf((char *)buf2, "%lo", n);
5239 else if (hex && hexupper)
5240 sprintf((char *)buf2, "%lX", n);
5241 else
5242 sprintf((char *)buf2, "%lx", n);
5243 length -= (int)STRLEN(buf2);
5244
5245 /*
5246 * Adjust number of zeros to the new number of digits, so the
5247 * total length of the number remains the same.
5248 * Don't do this when
5249 * the result may look like an octal number.
5250 */
5251 if (firstdigit == '0' && !(dooct && hex == 0))
5252 while (length-- > 0)
5253 *ptr++ = '0';
5254 *ptr = NUL;
5255 STRCAT(buf1, buf2);
5256 ins_str(buf1); /* insert the new number */
5257 vim_free(buf1);
5258 }
5259 --curwin->w_cursor.col;
5260 curwin->w_set_curswant = TRUE;
5261 #ifdef FEAT_RIGHTLEFT
5262 ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
5263 RLADDSUBFIX(ptr);
5264 #endif
5265 return OK;
5266 }
5267
5268 #ifdef FEAT_VIMINFO
5269 int
5270 read_viminfo_register(virp, force)
5271 vir_T *virp;
5272 int force;
5273 {
5274 int eof;
5275 int do_it = TRUE;
5276 int size;
5277 int limit;
5278 int i;
5279 int set_prev = FALSE;
5280 char_u *str;
5281 char_u **array = NULL;
5282
5283 /* We only get here (hopefully) if line[0] == '"' */
5284 str = virp->vir_line + 1;
5285 if (*str == '"')
5286 {
5287 set_prev = TRUE;
5288 str++;
5289 }
5290 if (!ASCII_ISALNUM(*str) && *str != '-')
5291 {
5292 if (viminfo_error("E577: ", _("Illegal register name"), virp->vir_line))
5293 return TRUE; /* too many errors, pretend end-of-file */
5294 do_it = FALSE;
5295 }
5296 get_yank_register(*str++, FALSE);
5297 if (!force && y_current->y_array != NULL)
5298 do_it = FALSE;
5299 size = 0;
5300 limit = 100; /* Optimized for registers containing <= 100 lines */
5301 if (do_it)
5302 {
5303 if (set_prev)
5304 y_previous = y_current;
5305 vim_free(y_current->y_array);
5306 array = y_current->y_array =
5307 (char_u **)alloc((unsigned)(limit * sizeof(char_u *)));
5308 str = skipwhite(str);
5309 if (STRNCMP(str, "CHAR", 4) == 0)
5310 y_current->y_type = MCHAR;
5311 #ifdef FEAT_VISUAL
5312 else if (STRNCMP(str, "BLOCK", 5) == 0)
5313 y_current->y_type = MBLOCK;
5314 #endif
5315 else
5316 y_current->y_type = MLINE;
5317 /* get the block width; if it's missing we get a zero, which is OK */
5318 str = skipwhite(skiptowhite(str));
5319 #ifdef FEAT_VISUAL
5320 y_current->y_width = getdigits(&str);
5321 #else
5322 (void)getdigits(&str);
5323 #endif
5324 }
5325
5326 while (!(eof = viminfo_readline(virp))
5327 && (virp->vir_line[0] == TAB || virp->vir_line[0] == '<'))
5328 {
5329 if (do_it)
5330 {
5331 if (size >= limit)
5332 {
5333 y_current->y_array = (char_u **)
5334 alloc((unsigned)(limit * 2 * sizeof(char_u *)));
5335 for (i = 0; i < limit; i++)
5336 y_current->y_array[i] = array[i];
5337 vim_free(array);
5338 limit *= 2;
5339 array = y_current->y_array;
5340 }
5341 str = viminfo_readstring(virp, 1, TRUE);
5342 if (str != NULL)
5343 array[size++] = str;
5344 else
5345 do_it = FALSE;
5346 }
5347 }
5348 if (do_it)
5349 {
5350 if (size == 0)
5351 {
5352 vim_free(array);
5353 y_current->y_array = NULL;
5354 }
5355 else if (size < limit)
5356 {
5357 y_current->y_array =
5358 (char_u **)alloc((unsigned)(size * sizeof(char_u *)));
5359 for (i = 0; i < size; i++)
5360 y_current->y_array[i] = array[i];
5361 vim_free(array);
5362 }
5363 y_current->y_size = size;
5364 }
5365 return eof;
5366 }
5367
5368 void
5369 write_viminfo_registers(fp)
5370 FILE *fp;
5371 {
5372 int i, j;
5373 char_u *type;
5374 char_u c;
5375 int num_lines;
5376 int max_num_lines;
5377 int max_kbyte;
5378 long len;
5379
5380 fprintf(fp, _("\n# Registers:\n"));
5381
5382 /* Get '<' value, use old '"' value if '<' is not found. */
5383 max_num_lines = get_viminfo_parameter('<');
5384 if (max_num_lines < 0)
5385 max_num_lines = get_viminfo_parameter('"');
5386 if (max_num_lines == 0)
5387 return;
5388 max_kbyte = get_viminfo_parameter('s');
5389 if (max_kbyte == 0)
5390 return;
5391 for (i = 0; i < NUM_REGISTERS; i++)
5392 {
5393 if (y_regs[i].y_array == NULL)
5394 continue;
5395 #ifdef FEAT_CLIPBOARD
5396 /* Skip '*'/'+' register, we don't want them back next time */
5397 if (i == STAR_REGISTER || i == PLUS_REGISTER)
5398 continue;
5399 #endif
5400 #ifdef FEAT_DND
5401 /* Neither do we want the '~' register */
5402 if (i == TILDE_REGISTER)
5403 continue;
5404 #endif
5405 /* Skip empty registers. */
5406 num_lines = y_regs[i].y_size;
5407 if (num_lines == 0
5408 || (num_lines == 1 && y_regs[i].y_type == MCHAR
5409 && STRLEN(y_regs[i].y_array[0]) == 0))
5410 continue;
5411
5412 if (max_kbyte > 0)
5413 {
5414 /* Skip register if there is more text than the maximum size. */
5415 len = 0;
5416 for (j = 0; j < num_lines; j++)
5417 len += (long)STRLEN(y_regs[i].y_array[j]) + 1L;
5418 if (len > (long)max_kbyte * 1024L)
5419 continue;
5420 }
5421
5422 switch (y_regs[i].y_type)
5423 {
5424 case MLINE:
5425 type = (char_u *)"LINE";
5426 break;
5427 case MCHAR:
5428 type = (char_u *)"CHAR";
5429 break;
5430 #ifdef FEAT_VISUAL
5431 case MBLOCK:
5432 type = (char_u *)"BLOCK";
5433 break;
5434 #endif
5435 default:
5436 sprintf((char *)IObuff, _("E574: Unknown register type %d"),
5437 y_regs[i].y_type);
5438 emsg(IObuff);
5439 type = (char_u *)"LINE";
5440 break;
5441 }
5442 if (y_previous == &y_regs[i])
5443 fprintf(fp, "\"");
5444 c = get_register_name(i);
5445 fprintf(fp, "\"%c\t%s\t%d\n", c, type,
5446 #ifdef FEAT_VISUAL
5447 (int)y_regs[i].y_width
5448 #else
5449 0
5450 #endif
5451 );
5452
5453 /* If max_num_lines < 0, then we save ALL the lines in the register */
5454 if (max_num_lines > 0 && num_lines > max_num_lines)
5455 num_lines = max_num_lines;
5456 for (j = 0; j < num_lines; j++)
5457 {
5458 putc('\t', fp);
5459 viminfo_writestring(fp, y_regs[i].y_array[j]);
5460 }
5461 }
5462 }
5463 #endif /* FEAT_VIMINFO */
5464
5465 #if defined(FEAT_CLIPBOARD) || defined(PROTO)
5466 /*
5467 * SELECTION / PRIMARY ('*')
5468 *
5469 * Text selection stuff that uses the GUI selection register '*'. When using a
5470 * GUI this may be text from another window, otherwise it is the last text we
5471 * had highlighted with VIsual mode. With mouse support, clicking the middle
5472 * button performs the paste, otherwise you will need to do <"*p>. "
5473 * If not under X, it is synonymous with the clipboard register '+'.
5474 *
5475 * X CLIPBOARD ('+')
5476 *
5477 * Text selection stuff that uses the GUI clipboard register '+'.
5478 * Under X, this matches the standard cut/paste buffer CLIPBOARD selection.
5479 * It will be used for unnamed cut/pasting is 'clipboard' contains "unnamed",
5480 * otherwise you will need to do <"+p>. "
5481 * If not under X, it is synonymous with the selection register '*'.
5482 */
5483
5484 /*
5485 * Routine to export any final X selection we had to the environment
5486 * so that the text is still available after vim has exited. X selections
5487 * only exist while the owning application exists, so we write to the
5488 * permanent (while X runs) store CUT_BUFFER0.
5489 * Dump the CLIPBOARD selection if we own it (it's logically the more
5490 * 'permanent' of the two), otherwise the PRIMARY one.
5491 * For now, use a hard-coded sanity limit of 1Mb of data.
5492 */
5493 #if defined(FEAT_X11) && defined(FEAT_CLIPBOARD)
5494 void
5495 x11_export_final_selection()
5496 {
5497 Display *dpy;
5498 char_u *str = NULL;
5499 long_u len = 0;
5500 int motion_type = -1;
5501
5502 # ifdef FEAT_GUI
5503 if (gui.in_use)
5504 dpy = X_DISPLAY;
5505 else
5506 # endif
5507 # ifdef FEAT_XCLIPBOARD
5508 dpy = xterm_dpy;
5509 # else
5510 return;
5511 # endif
5512
5513 /* Get selection to export */
5514 if (clip_plus.owned)
5515 motion_type = clip_convert_selection(&str, &len, &clip_plus);
5516 else if (clip_star.owned)
5517 motion_type = clip_convert_selection(&str, &len, &clip_star);
5518
5519 /* Check it's OK */
5520 if (dpy != NULL && str != NULL && motion_type >= 0
5521 && len < 1024*1024 && len > 0)
5522 {
5523 XStoreBuffer(dpy, (char *)str, (int)len, 0);
5524 XFlush(dpy);
5525 }
5526
5527 vim_free(str);
5528 }
5529 #endif
5530
5531 void
5532 clip_free_selection(cbd)
5533 VimClipboard *cbd;
5534 {
5535 struct yankreg *y_ptr = y_current;
5536
5537 if (cbd == &clip_plus)
5538 y_current = &y_regs[PLUS_REGISTER];
5539 else
5540 y_current = &y_regs[STAR_REGISTER];
5541 free_yank_all();
5542 y_current->y_size = 0;
5543 y_current = y_ptr;
5544 }
5545
5546 /*
5547 * Get the selected text and put it in the gui selection register '*' or '+'.
5548 */
5549 void
5550 clip_get_selection(cbd)
5551 VimClipboard *cbd;
5552 {
5553 struct yankreg *old_y_previous, *old_y_current;
5554 pos_T old_cursor;
5555 #ifdef FEAT_VISUAL
5556 pos_T old_visual;
5557 int old_visual_mode;
5558 #endif
5559 colnr_T old_curswant;
5560 int old_set_curswant;
5561 pos_T old_op_start, old_op_end;
5562 oparg_T oa;
5563 cmdarg_T ca;
5564
5565 if (cbd->owned)
5566 {
5567 if ((cbd == &clip_plus && y_regs[PLUS_REGISTER].y_array != NULL)
5568 || (cbd == &clip_star && y_regs[STAR_REGISTER].y_array != NULL))
5569 return;
5570
5571 /* Get the text between clip_star.start & clip_star.end */
5572 old_y_previous = y_previous;
5573 old_y_current = y_current;
5574 old_cursor = curwin->w_cursor;
5575 old_curswant = curwin->w_curswant;
5576 old_set_curswant = curwin->w_set_curswant;
5577 old_op_start = curbuf->b_op_start;
5578 old_op_end = curbuf->b_op_end;
5579 #ifdef FEAT_VISUAL
5580 old_visual = VIsual;
5581 old_visual_mode = VIsual_mode;
5582 #endif
5583 clear_oparg(&oa);
5584 oa.regname = (cbd == &clip_plus ? '+' : '*');
5585 oa.op_type = OP_YANK;
5586 vim_memset(&ca, 0, sizeof(ca));
5587 ca.oap = &oa;
5588 ca.cmdchar = 'y';
5589 ca.count1 = 1;
5590 ca.retval = CA_NO_ADJ_OP_END;
5591 do_pending_operator(&ca, 0, TRUE);
5592 y_previous = old_y_previous;
5593 y_current = old_y_current;
5594 curwin->w_cursor = old_cursor;
5595 changed_cline_bef_curs(); /* need to update w_virtcol et al */
5596 curwin->w_curswant = old_curswant;
5597 curwin->w_set_curswant = old_set_curswant;
5598 curbuf->b_op_start = old_op_start;
5599 curbuf->b_op_end = old_op_end;
5600 #ifdef FEAT_VISUAL
5601 VIsual = old_visual;
5602 VIsual_mode = old_visual_mode;
5603 #endif
5604 }
5605 else
5606 {
5607 clip_free_selection(cbd);
5608
5609 /* Try to get selected text from another window */
5610 clip_gen_request_selection(cbd);
5611 }
5612 }
5613
5614 /* Convert from the GUI selection string into the '*'/'+' register */
5615 void
5616 clip_yank_selection(type, str, len, cbd)
5617 int type;
5618 char_u *str;
5619 long len;
5620 VimClipboard *cbd;
5621 {
5622 struct yankreg *y_ptr;
5623
5624 if (cbd == &clip_plus)
5625 y_ptr = &y_regs[PLUS_REGISTER];
5626 else
5627 y_ptr = &y_regs[STAR_REGISTER];
5628
5629 clip_free_selection(cbd);
5630
5631 str_to_reg(y_ptr, type, str, len, 0L);
5632 }
5633
5634 /*
5635 * Convert the '*'/'+' register into a GUI selection string returned in *str
5636 * with length *len.
5637 * Returns the motion type, or -1 for failure.
5638 */
5639 int
5640 clip_convert_selection(str, len, cbd)
5641 char_u **str;
5642 long_u *len;
5643 VimClipboard *cbd;
5644 {
5645 char_u *p;
5646 int lnum;
5647 int i, j;
5648 int_u eolsize;
5649 struct yankreg *y_ptr;
5650
5651 if (cbd == &clip_plus)
5652 y_ptr = &y_regs[PLUS_REGISTER];
5653 else
5654 y_ptr = &y_regs[STAR_REGISTER];
5655
5656 #ifdef USE_CRNL
5657 eolsize = 2;
5658 #else
5659 eolsize = 1;
5660 #endif
5661
5662 *str = NULL;
5663 *len = 0;
5664 if (y_ptr->y_array == NULL)
5665 return -1;
5666
5667 for (i = 0; i < y_ptr->y_size; i++)
5668 *len += (long_u)STRLEN(y_ptr->y_array[i]) + eolsize;
5669
5670 /*
5671 * Don't want newline character at end of last line if we're in MCHAR mode.
5672 */
5673 if (y_ptr->y_type == MCHAR && *len >= eolsize)
5674 *len -= eolsize;
5675
5676 p = *str = lalloc(*len + 1, TRUE); /* add one to avoid zero */
5677 if (p == NULL)
5678 return -1;
5679 lnum = 0;
5680 for (i = 0, j = 0; i < (int)*len; i++, j++)
5681 {
5682 if (y_ptr->y_array[lnum][j] == '\n')
5683 p[i] = NUL;
5684 else if (y_ptr->y_array[lnum][j] == NUL)
5685 {
5686 #ifdef USE_CRNL
5687 p[i++] = '\r';
5688 #endif
5689 #ifdef USE_CR
5690 p[i] = '\r';
5691 #else
5692 p[i] = '\n';
5693 #endif
5694 lnum++;
5695 j = -1;
5696 }
5697 else
5698 p[i] = y_ptr->y_array[lnum][j];
5699 }
5700 return y_ptr->y_type;
5701 }
5702
5703
5704 # if defined(FEAT_VISUAL) || defined(FEAT_EVAL)
5705 /*
5706 * If we have written to a clipboard register, send the text to the clipboard.
5707 */
5708 static void
5709 may_set_selection()
5710 {
5711 if (y_current == &(y_regs[STAR_REGISTER]) && clip_star.available)
5712 {
5713 clip_own_selection(&clip_star);
5714 clip_gen_set_selection(&clip_star);
5715 }
5716 else if (y_current == &(y_regs[PLUS_REGISTER]) && clip_plus.available)
5717 {
5718 clip_own_selection(&clip_plus);
5719 clip_gen_set_selection(&clip_plus);
5720 }
5721 }
5722 # endif
5723
5724 #endif /* FEAT_CLIPBOARD || PROTO */
5725
5726
5727 #if defined(FEAT_DND) || defined(PROTO)
5728 /*
5729 * Replace the contents of the '~' register with str.
5730 */
5731 void
5732 dnd_yank_drag_data(str, len)
5733 char_u *str;
5734 long len;
5735 {
5736 struct yankreg *curr;
5737
5738 curr = y_current;
5739 y_current = &y_regs[TILDE_REGISTER];
5740 free_yank_all();
5741 str_to_reg(y_current, MCHAR, str, len, 0L);
5742 y_current = curr;
5743 }
5744 #endif
5745
5746
5747 #if defined(FEAT_EVAL) || defined(PROTO)
5748 /*
5749 * Return the type of a register.
5750 * Used for getregtype()
5751 * Returns MAUTO for error.
5752 */
5753 char_u
5754 get_reg_type(regname, reglen)
5755 int regname;
5756 long *reglen;
5757 {
5758 switch (regname)
5759 {
5760 case '%': /* file name */
5761 case '#': /* alternate file name */
5762 case '=': /* expression */
5763 case ':': /* last command line */
5764 case '/': /* last search-pattern */
5765 case '.': /* last inserted text */
5766 #ifdef FEAT_SEARCHPATH
5767 case Ctrl_F: /* Filename under cursor */
5768 case Ctrl_P: /* Path under cursor, expand via "path" */
5769 #endif
5770 case Ctrl_W: /* word under cursor */
5771 case Ctrl_A: /* WORD (mnemonic All) under cursor */
5772 case '_': /* black hole: always empty */
5773 return MCHAR;
5774 }
5775
5776 #ifdef FEAT_CLIPBOARD
5777 regname = may_get_selection(regname);
5778 #endif
5779
5780 /* Should we check for a valid name? */
5781 get_yank_register(regname, FALSE);
5782
5783 if (y_current->y_array != NULL)
5784 {
5785 #ifdef FEAT_VISUAL
5786 if (reglen != NULL && y_current->y_type == MBLOCK)
5787 *reglen = y_current->y_width;
5788 #endif
5789 return y_current->y_type;
5790 }
5791 return MAUTO;
5792 }
5793
5794 /*
5795 * Return the contents of a register as a single allocated string.
5796 * Used for "@r" in expressions and for getreg().
5797 * Returns NULL for error.
5798 */
5799 char_u *
5800 get_reg_contents(regname, allowexpr, expr_src)
5801 int regname;
5802 int allowexpr; /* allow "=" register */
5803 int expr_src; /* get expression for "=" register */
5804 {
5805 long i;
5806 char_u *retval;
5807 int allocated;
5808 long len;
5809
5810 /* Don't allow using an expression register inside an expression */
5811 if (regname == '=')
5812 {
5813 if (allowexpr)
5814 {
5815 if (expr_src)
5816 return get_expr_line_src();
5817 return get_expr_line();
5818 }
5819 return NULL;
5820 }
5821
5822 if (regname == '@') /* "@@" is used for unnamed register */
5823 regname = '"';
5824
5825 /* check for valid regname */
5826 if (regname != NUL && !valid_yank_reg(regname, FALSE))
5827 return NULL;
5828
5829 #ifdef FEAT_CLIPBOARD
5830 regname = may_get_selection(regname);
5831 #endif
5832
5833 if (get_spec_reg(regname, &retval, &allocated, FALSE))
5834 {
5835 if (retval == NULL)
5836 return NULL;
5837 if (!allocated)
5838 retval = vim_strsave(retval);
5839 return retval;
5840 }
5841
5842 get_yank_register(regname, FALSE);
5843 if (y_current->y_array == NULL)
5844 return NULL;
5845
5846 /*
5847 * Compute length of resulting string.
5848 */
5849 len = 0;
5850 for (i = 0; i < y_current->y_size; ++i)
5851 {
5852 len += (long)STRLEN(y_current->y_array[i]);
5853 /*
5854 * Insert a newline between lines and after last line if
5855 * y_type is MLINE.
5856 */
5857 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
5858 ++len;
5859 }
5860
5861 retval = lalloc(len + 1, TRUE);
5862
5863 /*
5864 * Copy the lines of the yank register into the string.
5865 */
5866 if (retval != NULL)
5867 {
5868 len = 0;
5869 for (i = 0; i < y_current->y_size; ++i)
5870 {
5871 STRCPY(retval + len, y_current->y_array[i]);
5872 len += (long)STRLEN(retval + len);
5873
5874 /*
5875 * Insert a NL between lines and after the last line if y_type is
5876 * MLINE.
5877 */
5878 if (y_current->y_type == MLINE || i < y_current->y_size - 1)
5879 retval[len++] = '\n';
5880 }
5881 retval[len] = NUL;
5882 }
5883
5884 return retval;
5885 }
5886
5887 /*
5888 * Store string "str" in register "name".
5889 * "maxlen" is the maximum number of bytes to use, -1 for all bytes.
5890 * If "must_append" is TRUE, always append to the register. Otherwise append
5891 * if "name" is an uppercase letter.
5892 * Note: "maxlen" and "must_append" don't work for the "/" register.
5893 * Careful: 'str' is modified, you may have to use a copy!
5894 * If "str" ends in '\n' or '\r', use linewise, otherwise use characterwise.
5895 */
5896 void
5897 write_reg_contents(name, str, maxlen, must_append)
5898 int name;
5899 char_u *str;
5900 int maxlen;
5901 int must_append;
5902 {
5903 write_reg_contents_ex(name, str, maxlen, must_append, MAUTO, 0L);
5904 }
5905
5906 void
5907 write_reg_contents_ex(name, str, maxlen, must_append, yank_type, block_len)
5908 int name;
5909 char_u *str;
5910 int maxlen;
5911 int must_append;
5912 int yank_type;
5913 long block_len;
5914 {
5915 struct yankreg *old_y_previous, *old_y_current;
5916 long len;
5917
5918 if (maxlen >= 0)
5919 len = maxlen;
5920 else
5921 len = (long)STRLEN(str);
5922
5923 /* Special case: '/' search pattern */
5924 if (name == '/')
5925 {
5926 set_last_search_pat(str, RE_SEARCH, TRUE, TRUE);
5927 return;
5928 }
5929
5930 #ifdef FEAT_EVAL
5931 if (name == '=')
5932 {
5933 char_u *p, *s;
5934
5935 p = vim_strnsave(str, (int)len);
5936 if (p == NULL)
5937 return;
5938 if (must_append)
5939 {
5940 s = concat_str(get_expr_line_src(), p);
5941 vim_free(p);
5942 p = s;
5943
5944 }
5945 set_expr_line(p);
5946 return;
5947 }
5948 #endif
5949
5950 if (!valid_yank_reg(name, TRUE)) /* check for valid reg name */
5951 {
5952 emsg_invreg(name);
5953 return;
5954 }
5955
5956 if (name == '_') /* black hole: nothing to do */
5957 return;
5958
5959 /* Don't want to change the current (unnamed) register */
5960 old_y_previous = y_previous;
5961 old_y_current = y_current;
5962
5963 get_yank_register(name, TRUE);
5964 if (!y_append && !must_append)
5965 free_yank_all();
5966 #ifndef FEAT_VISUAL
5967 /* Just in case - make sure we don't use MBLOCK */
5968 if (yank_type == MBLOCK)
5969 yank_type = MAUTO;
5970 #endif
5971 if (yank_type == MAUTO)
5972 yank_type = ((len > 0 && (str[len - 1] == '\n' || str[len - 1] == '\r'))
5973 ? MLINE : MCHAR);
5974 str_to_reg(y_current, yank_type, str, len, block_len);
5975
5976 # ifdef FEAT_CLIPBOARD
5977 /* Send text of clipboard register to the clipboard. */
5978 may_set_selection();
5979 # endif
5980
5981 /* ':let @" = "val"' should change the meaning of the "" register */
5982 if (name != '"')
5983 y_previous = old_y_previous;
5984 y_current = old_y_current;
5985 }
5986 #endif /* FEAT_EVAL */
5987
5988 #if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
5989 /*
5990 * Put a string into a register. When the register is not empty, the string
5991 * is appended.
5992 */
5993 static void
5994 str_to_reg(y_ptr, type, str, len, blocklen)
5995 struct yankreg *y_ptr; /* pointer to yank register */
5996 int type; /* MCHAR, MLINE or MBLOCK */
5997 char_u *str; /* string to put in register */
5998 long len; /* length of string */
5999 long blocklen; /* width of Visual block */
6000 {
6001 int lnum;
6002 long start;
6003 long i;
6004 int extra;
6005 int newlines; /* number of lines added */
6006 int extraline = 0; /* extra line at the end */
6007 int append = FALSE; /* append to last line in register */
6008 char_u *s;
6009 char_u **pp;
6010 #ifdef FEAT_VISUAL
6011 long maxlen;
6012 #endif
6013
6014 if (y_ptr->y_array == NULL) /* NULL means emtpy register */
6015 y_ptr->y_size = 0;
6016
6017 /*
6018 * Count the number of lines within the string
6019 */
6020 newlines = 0;
6021 for (i = 0; i < len; i++)
6022 if (str[i] == '\n')
6023 ++newlines;
6024 if (type == MCHAR || len == 0 || str[len - 1] != '\n')
6025 {
6026 extraline = 1;
6027 ++newlines; /* count extra newline at the end */
6028 }
6029 if (y_ptr->y_size > 0 && y_ptr->y_type == MCHAR)
6030 {
6031 append = TRUE;
6032 --newlines; /* uncount newline when appending first line */
6033 }
6034
6035 /*
6036 * Allocate an array to hold the pointers to the new register lines.
6037 * If the register was not empty, move the existing lines to the new array.
6038 */
6039 pp = (char_u **)lalloc_clear((y_ptr->y_size + newlines)
6040 * sizeof(char_u *), TRUE);
6041 if (pp == NULL) /* out of memory */
6042 return;
6043 for (lnum = 0; lnum < y_ptr->y_size; ++lnum)
6044 pp[lnum] = y_ptr->y_array[lnum];
6045 vim_free(y_ptr->y_array);
6046 y_ptr->y_array = pp;
6047 #ifdef FEAT_VISUAL
6048 maxlen = 0;
6049 #endif
6050
6051 /*
6052 * Find the end of each line and save it into the array.
6053 */
6054 for (start = 0; start < len + extraline; start += i + 1)
6055 {
6056 for (i = start; i < len; ++i) /* find the end of the line */
6057 if (str[i] == '\n')
6058 break;
6059 i -= start; /* i is now length of line */
6060 #ifdef FEAT_VISUAL
6061 if (i > maxlen)
6062 maxlen = i;
6063 #endif
6064 if (append)
6065 {
6066 --lnum;
6067 extra = (int)STRLEN(y_ptr->y_array[lnum]);
6068 }
6069 else
6070 extra = 0;
6071 s = alloc((unsigned)(i + extra + 1));
6072 if (s == NULL)
6073 break;
6074 if (extra)
6075 mch_memmove(s, y_ptr->y_array[lnum], (size_t)extra);
6076 if (append)
6077 vim_free(y_ptr->y_array[lnum]);
6078 if (i)
6079 mch_memmove(s + extra, str + start, (size_t)i);
6080 extra += i;
6081 s[extra] = NUL;
6082 y_ptr->y_array[lnum++] = s;
6083 while (--extra >= 0)
6084 {
6085 if (*s == NUL)
6086 *s = '\n'; /* replace NUL with newline */
6087 ++s;
6088 }
6089 append = FALSE; /* only first line is appended */
6090 }
6091 y_ptr->y_type = type;
6092 y_ptr->y_size = lnum;
6093 # ifdef FEAT_VISUAL
6094 if (type == MBLOCK)
6095 y_ptr->y_width = (blocklen < 0 ? maxlen - 1 : blocklen);
6096 else
6097 y_ptr->y_width = 0;
6098 # endif
6099 }
6100 #endif /* FEAT_CLIPBOARD || FEAT_EVAL || PROTO */
6101
6102 void
6103 clear_oparg(oap)
6104 oparg_T *oap;
6105 {
6106 vim_memset(oap, 0, sizeof(oparg_T));
6107 }
6108
6109 static long line_count_info __ARGS((char_u *line, long *wc, long *cc, long limit, int eol_size));
6110
6111 /*
6112 * Count the number of bytes, characters and "words" in a line.
6113 *
6114 * "Words" are counted by looking for boundaries between non-space and
6115 * space characters. (it seems to produce results that match 'wc'.)
6116 *
6117 * Return value is byte count; word count for the line is added to "*wc".
6118 * Char count is added to "*cc".
6119 *
6120 * The function will only examine the first "limit" characters in the
6121 * line, stopping if it encounters an end-of-line (NUL byte). In that
6122 * case, eol_size will be added to the character count to account for
6123 * the size of the EOL character.
6124 */
6125 static long
6126 line_count_info(line, wc, cc, limit, eol_size)
6127 char_u *line;
6128 long *wc;
6129 long *cc;
6130 long limit;
6131 int eol_size;
6132 {
6133 long i;
6134 long words = 0;
6135 long chars = 0;
6136 int is_word = 0;
6137
6138 for (i = 0; line[i] && i < limit; )
6139 {
6140 if (is_word)
6141 {
6142 if (vim_isspace(line[i]))
6143 {
6144 words++;
6145 is_word = 0;
6146 }
6147 }
6148 else if (!vim_isspace(line[i]))
6149 is_word = 1;
6150 ++chars;
6151 #ifdef FEAT_MBYTE
6152 i += (*mb_ptr2len)(line + i);
6153 #else
6154 ++i;
6155 #endif
6156 }
6157
6158 if (is_word)
6159 words++;
6160 *wc += words;
6161
6162 /* Add eol_size if the end of line was reached before hitting limit. */
6163 if (line[i] == NUL && i < limit)
6164 {
6165 i += eol_size;
6166 chars += eol_size;
6167 }
6168 *cc += chars;
6169 return i;
6170 }
6171
6172 /*
6173 * Give some info about the position of the cursor (for "g CTRL-G").
6174 * In Visual mode, give some info about the selected region. (In this case,
6175 * the *_count_cursor variables store running totals for the selection.)
6176 */
6177 void
6178 cursor_pos_info()
6179 {
6180 char_u *p;
6181 char_u buf1[50];
6182 char_u buf2[40];
6183 linenr_T lnum;
6184 long byte_count = 0;
6185 long byte_count_cursor = 0;
6186 long char_count = 0;
6187 long char_count_cursor = 0;
6188 long word_count = 0;
6189 long word_count_cursor = 0;
6190 int eol_size;
6191 long last_check = 100000L;
6192 #ifdef FEAT_VISUAL
6193 long line_count_selected = 0;
6194 pos_T min_pos, max_pos;
6195 oparg_T oparg;
6196 struct block_def bd;
6197 #endif
6198
6199 /*
6200 * Compute the length of the file in characters.
6201 */
6202 if (curbuf->b_ml.ml_flags & ML_EMPTY)
6203 {
6204 MSG(_(no_lines_msg));
6205 }
6206 else
6207 {
6208 if (get_fileformat(curbuf) == EOL_DOS)
6209 eol_size = 2;
6210 else
6211 eol_size = 1;
6212
6213 #ifdef FEAT_VISUAL
6214 if (VIsual_active)
6215 {
6216 if (lt(VIsual, curwin->w_cursor))
6217 {
6218 min_pos = VIsual;
6219 max_pos = curwin->w_cursor;
6220 }
6221 else
6222 {
6223 min_pos = curwin->w_cursor;
6224 max_pos = VIsual;
6225 }
6226 if (*p_sel == 'e' && max_pos.col > 0)
6227 --max_pos.col;
6228
6229 if (VIsual_mode == Ctrl_V)
6230 {
6231 oparg.is_VIsual = 1;
6232 oparg.block_mode = TRUE;
6233 oparg.op_type = OP_NOP;
6234 getvcols(curwin, &min_pos, &max_pos,
6235 &oparg.start_vcol, &oparg.end_vcol);
6236 if (curwin->w_curswant == MAXCOL)
6237 oparg.end_vcol = MAXCOL;
6238 /* Swap the start, end vcol if needed */
6239 if (oparg.end_vcol < oparg.start_vcol)
6240 {
6241 oparg.end_vcol += oparg.start_vcol;
6242 oparg.start_vcol = oparg.end_vcol - oparg.start_vcol;
6243 oparg.end_vcol -= oparg.start_vcol;
6244 }
6245 }
6246 line_count_selected = max_pos.lnum - min_pos.lnum + 1;
6247 }
6248 #endif
6249
6250 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
6251 {
6252 /* Check for a CTRL-C every 100000 characters. */
6253 if (byte_count > last_check)
6254 {
6255 ui_breakcheck();
6256 if (got_int)
6257 return;
6258 last_check = byte_count + 100000L;
6259 }
6260
6261 #ifdef FEAT_VISUAL
6262 /* Do extra processing for VIsual mode. */
6263 if (VIsual_active
6264 && lnum >= min_pos.lnum && lnum <= max_pos.lnum)
6265 {
6266 char_u *s = NULL;
6267 long len = 0L;
6268
6269 switch (VIsual_mode)
6270 {
6271 case Ctrl_V:
6272 # ifdef FEAT_VIRTUALEDIT
6273 virtual_op = virtual_active();
6274 # endif
6275 block_prep(&oparg, &bd, lnum, 0);
6276 # ifdef FEAT_VIRTUALEDIT
6277 virtual_op = MAYBE;
6278 # endif
6279 s = bd.textstart;
6280 len = (long)bd.textlen;
6281 break;
6282 case 'V':
6283 s = ml_get(lnum);
6284 len = MAXCOL;
6285 break;
6286 case 'v':
6287 {
6288 colnr_T start_col = (lnum == min_pos.lnum)
6289 ? min_pos.col : 0;
6290 colnr_T end_col = (lnum == max_pos.lnum)
6291 ? max_pos.col - start_col + 1 : MAXCOL;
6292
6293 s = ml_get(lnum) + start_col;
6294 len = end_col;
6295 }
6296 break;
6297 }
6298 if (s != NULL)
6299 {
6300 byte_count_cursor += line_count_info(s, &word_count_cursor,
6301 &char_count_cursor, len, eol_size);
6302 if (lnum == curbuf->b_ml.ml_line_count
6303 && !curbuf->b_p_eol
6304 && curbuf->b_p_bin
6305 && (long)STRLEN(s) < len)
6306 byte_count_cursor -= eol_size;
6307 }
6308 }
6309 else
6310 #endif
6311 {
6312 /* In non-visual mode, check for the line the cursor is on */
6313 if (lnum == curwin->w_cursor.lnum)
6314 {
6315 word_count_cursor += word_count;
6316 char_count_cursor += char_count;
6317 byte_count_cursor = byte_count +
6318 line_count_info(ml_get(lnum),
6319 &word_count_cursor, &char_count_cursor,
6320 (long)(curwin->w_cursor.col + 1), eol_size);
6321 }
6322 }
6323 /* Add to the running totals */
6324 byte_count += line_count_info(ml_get(lnum), &word_count,
6325 &char_count, (long)MAXCOL, eol_size);
6326 }
6327
6328 /* Correction for when last line doesn't have an EOL. */
6329 if (!curbuf->b_p_eol && curbuf->b_p_bin)
6330 byte_count -= eol_size;
6331
6332 #ifdef FEAT_VISUAL
6333 if (VIsual_active)
6334 {
6335 if (VIsual_mode == Ctrl_V && curwin->w_curswant < MAXCOL)
6336 {
6337 getvcols(curwin, &min_pos, &max_pos, &min_pos.col,
6338 &max_pos.col);
6339 sprintf((char *)buf1, _("%ld Cols; "),
6340 (long)(oparg.end_vcol - oparg.start_vcol + 1));
6341 }
6342 else
6343 buf1[0] = NUL;
6344
6345 if (char_count_cursor == byte_count_cursor
6346 && char_count == byte_count)
6347 sprintf((char *)IObuff, _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Bytes"),
6348 buf1, line_count_selected,
6349 (long)curbuf->b_ml.ml_line_count,
6350 word_count_cursor, word_count,
6351 byte_count_cursor, byte_count);
6352 else
6353 sprintf((char *)IObuff, _("Selected %s%ld of %ld Lines; %ld of %ld Words; %ld of %ld Chars; %ld of %ld Bytes"),
6354 buf1, line_count_selected,
6355 (long)curbuf->b_ml.ml_line_count,
6356 word_count_cursor, word_count,
6357 char_count_cursor, char_count,
6358 byte_count_cursor, byte_count);
6359 }
6360 else
6361 #endif
6362 {
6363 p = ml_get_curline();
6364 validate_virtcol();
6365 col_print(buf1, (int)curwin->w_cursor.col + 1,
6366 (int)curwin->w_virtcol + 1);
6367 col_print(buf2, (int)STRLEN(p), linetabsize(p));
6368
6369 if (char_count_cursor == byte_count_cursor
6370 && char_count == byte_count)
6371 sprintf((char *)IObuff, _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Byte %ld of %ld"),
6372 (char *)buf1, (char *)buf2,
6373 (long)curwin->w_cursor.lnum,
6374 (long)curbuf->b_ml.ml_line_count,
6375 word_count_cursor, word_count,
6376 byte_count_cursor, byte_count);
6377 else
6378 sprintf((char *)IObuff, _("Col %s of %s; Line %ld of %ld; Word %ld of %ld; Char %ld of %ld; Byte %ld of %ld"),
6379 (char *)buf1, (char *)buf2,
6380 (long)curwin->w_cursor.lnum,
6381 (long)curbuf->b_ml.ml_line_count,
6382 word_count_cursor, word_count,
6383 char_count_cursor, char_count,
6384 byte_count_cursor, byte_count);
6385 }
6386
6387 #ifdef FEAT_MBYTE
6388 byte_count = bomb_size();
6389 if (byte_count > 0)
6390 sprintf((char *)IObuff + STRLEN(IObuff), _("(+%ld for BOM)"),
6391 byte_count);
6392 #endif
6393 /* Don't shorten this message, the user asked for it. */
6394 p = p_shm;
6395 p_shm = (char_u *)"";
6396 msg(IObuff);
6397 p_shm = p;
6398 }
6399 }
Vim for the Mac