|
7
|
1 /* vim: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 * diff.c: code for diff'ing two or three buffers.
|
|
|
12 */
|
|
|
13
|
|
|
14 #include "vim.h"
|
|
|
15
|
|
|
16 #if defined(FEAT_DIFF) || defined(PROTO)
|
|
|
17
|
|
|
18 #define DB_COUNT 4 /* up to four buffers can be diff'ed */
|
|
|
19
|
|
|
20 /*
|
|
|
21 * Each diffblock defines where a block of lines starts in each of the buffers
|
|
|
22 * and how many lines it occupies in that buffer. When the lines are missing
|
|
|
23 * in the buffer the df_count[] is zero. This is all counted in
|
|
|
24 * buffer lines.
|
|
|
25 * There is always at least one unchanged line in between the diffs.
|
|
|
26 * Otherwise it would have been included in the diff above or below it.
|
|
|
27 * df_lnum[] + df_count[] is the lnum below the change. When in one buffer
|
|
|
28 * lines have been inserted, in the other buffer df_lnum[] is the line below
|
|
|
29 * the insertion and df_count[] is zero. When appending lines at the end of
|
|
|
30 * the buffer, df_lnum[] is one beyond the end!
|
|
|
31 * This is using a linked list, because the number of differences is expected
|
|
|
32 * to be reasonable small. The list is sorted on lnum.
|
|
|
33 */
|
|
|
34 typedef struct diffblock diff_T;
|
|
|
35 struct diffblock
|
|
|
36 {
|
|
|
37 diff_T *df_next;
|
|
|
38 linenr_T df_lnum[DB_COUNT]; /* line number in buffer */
|
|
|
39 linenr_T df_count[DB_COUNT]; /* nr of inserted/changed lines */
|
|
|
40 };
|
|
|
41
|
|
|
42 static diff_T *first_diff = NULL;
|
|
|
43
|
|
|
44 static buf_T *(diffbuf[DB_COUNT]);
|
|
|
45
|
|
|
46 static int diff_invalid = TRUE; /* list of diffs is outdated */
|
|
|
47
|
|
|
48 static int diff_busy = FALSE; /* ex_diffgetput() is busy */
|
|
|
49
|
|
|
50 /* flags obtained from the 'diffopt' option */
|
|
|
51 #define DIFF_FILLER 1 /* display filler lines */
|
|
|
52 #define DIFF_ICASE 2 /* ignore case */
|
|
|
53 #define DIFF_IWHITE 4 /* ignore change in white space */
|
|
|
54 static int diff_flags = DIFF_FILLER;
|
|
|
55
|
|
|
56 #define LBUFLEN 50 /* length of line in diff file */
|
|
|
57
|
|
|
58 static int diff_a_works = MAYBE; /* TRUE when "diff -a" works, FALSE when it
|
|
|
59 doesn't work, MAYBE when not checked yet */
|
|
|
60 #if defined(MSWIN) || defined(MSDOS)
|
|
|
61 static int diff_bin_works = MAYBE; /* TRUE when "diff --binary" works, FALSE
|
|
|
62 when it doesn't work, MAYBE when not
|
|
|
63 checked yet */
|
|
|
64 #endif
|
|
|
65
|
|
|
66 static int diff_buf_idx __ARGS((buf_T *buf));
|
|
|
67 static void diff_check_unchanged __ARGS((diff_T *dp));
|
|
|
68 static int diff_check_sanity __ARGS((diff_T *dp));
|
|
|
69 static void diff_redraw __ARGS((int dofold));
|
|
|
70 static int diff_write __ARGS((buf_T *buf, char_u *fname));
|
|
|
71 static void diff_file __ARGS((char_u *tmp_orig, char_u *tmp_new, char_u *tmp_diff));
|
|
|
72 static int diff_equal_entry __ARGS((diff_T *dp, int idx1, int idx2));
|
|
|
73 static int diff_cmp __ARGS((char_u *s1, char_u *s2));
|
|
|
74 #ifdef FEAT_FOLDING
|
|
|
75 static void diff_fold_update __ARGS((diff_T *dp, int skip_idx));
|
|
|
76 #endif
|
|
|
77 static void diff_read __ARGS((int idx_orig, int idx_new, char_u *fname));
|
|
|
78 static void diff_copy_entry __ARGS((diff_T *dprev, diff_T *dp, int idx_orig, int idx_new));
|
|
|
79 static diff_T *diff_alloc_new __ARGS((diff_T *dprev, diff_T *dp));
|
|
|
80
|
|
|
81 #ifndef USE_CR
|
|
|
82 # define tag_fgets vim_fgets
|
|
|
83 #endif
|
|
|
84
|
|
|
85 /*
|
|
|
86 * Call this when a new buffer is being edited in the current window. curbuf
|
|
|
87 * must already have been set.
|
|
|
88 * Marks the current buffer as being part of the diff and requireing updating.
|
|
|
89 * This must be done before any autocmd, because a command the uses info
|
|
|
90 * about the screen contents.
|
|
|
91 */
|
|
|
92 void
|
|
|
93 diff_new_buffer()
|
|
|
94 {
|
|
|
95 if (curwin->w_p_diff)
|
|
|
96 diff_buf_add(curbuf);
|
|
|
97 }
|
|
|
98
|
|
|
99 /*
|
|
|
100 * Called when deleting or unloading a buffer: No longer make a diff with it.
|
|
|
101 * Also called when 'diff' is reset in the last window showing a diff for a
|
|
|
102 * buffer.
|
|
|
103 */
|
|
|
104 void
|
|
|
105 diff_buf_delete(buf)
|
|
|
106 buf_T *buf;
|
|
|
107 {
|
|
|
108 int i;
|
|
|
109
|
|
|
110 i = diff_buf_idx(buf);
|
|
|
111 if (i != DB_COUNT)
|
|
|
112 {
|
|
|
113 diffbuf[i] = NULL;
|
|
|
114 diff_invalid = TRUE;
|
|
|
115 }
|
|
|
116 }
|
|
|
117
|
|
|
118 /*
|
|
16
|
119 * Check if the current buffer should be added to or removed from the list of
|
|
|
120 * diff buffers.
|
|
|
121 */
|
|
|
122 void
|
|
|
123 diff_buf_adjust(win)
|
|
|
124 win_T *win;
|
|
|
125 {
|
|
|
126 win_T *wp;
|
|
|
127
|
|
|
128 if (!win->w_p_diff)
|
|
|
129 {
|
|
|
130 /* When there is no window showing a diff for this buffer, remove
|
|
|
131 * it from the diffs. */
|
|
|
132 for (wp = firstwin; wp != NULL; wp = wp->w_next)
|
|
|
133 if (wp->w_buffer == win->w_buffer && wp->w_p_diff)
|
|
|
134 break;
|
|
|
135 if (wp == NULL)
|
|
|
136 diff_buf_delete(win->w_buffer);
|
|
|
137 }
|
|
|
138 else
|
|
|
139 diff_buf_add(win->w_buffer);
|
|
|
140 }
|
|
|
141
|
|
|
142 /*
|
|
7
|
143 * Add a buffer to make diffs for.
|
|
|
144 */
|
|
|
145 void
|
|
|
146 diff_buf_add(buf)
|
|
|
147 buf_T *buf;
|
|
|
148 {
|
|
|
149 int i;
|
|
|
150
|
|
|
151 if (diff_buf_idx(buf) != DB_COUNT)
|
|
|
152 return; /* It's already there. */
|
|
|
153
|
|
|
154 for (i = 0; i < DB_COUNT; ++i)
|
|
|
155 if (diffbuf[i] == NULL)
|
|
|
156 {
|
|
|
157 diffbuf[i] = buf;
|
|
|
158 diff_invalid = TRUE;
|
|
|
159 return;
|
|
|
160 }
|
|
|
161
|
|
|
162 EMSGN(_("E96: Can not diff more than %ld buffers"), DB_COUNT);
|
|
|
163 }
|
|
|
164
|
|
|
165 /*
|
|
|
166 * Find buffer "buf" in the list of diff buffers.
|
|
|
167 * Return its index or DB_COUNT if not found.
|
|
|
168 */
|
|
|
169 static int
|
|
|
170 diff_buf_idx(buf)
|
|
|
171 buf_T *buf;
|
|
|
172 {
|
|
|
173 int idx;
|
|
|
174
|
|
|
175 for (idx = 0; idx < DB_COUNT; ++idx)
|
|
|
176 if (diffbuf[idx] == buf)
|
|
|
177 break;
|
|
|
178 return idx;
|
|
|
179 }
|
|
|
180
|
|
|
181 /*
|
|
|
182 * Mark the diff info as invalid, it will be updated when info is requested.
|
|
|
183 */
|
|
|
184 void
|
|
|
185 diff_invalidate()
|
|
|
186 {
|
|
|
187 if (curwin->w_p_diff)
|
|
|
188 {
|
|
|
189 diff_invalid = TRUE;
|
|
|
190 diff_redraw(TRUE);
|
|
|
191 }
|
|
|
192 }
|
|
|
193
|
|
|
194 /*
|
|
|
195 * Called by mark_adjust(): update line numbers.
|
|
|
196 * This attempts to update the changes as much as possible:
|
|
|
197 * When inserting/deleting lines outside of existing change blocks, create a
|
|
|
198 * new change block and update the line numbers in following blocks.
|
|
|
199 * When inserting/deleting lines in existing change blocks, update them.
|
|
|
200 */
|
|
|
201 void
|
|
|
202 diff_mark_adjust(line1, line2, amount, amount_after)
|
|
|
203 linenr_T line1;
|
|
|
204 linenr_T line2;
|
|
|
205 long amount;
|
|
|
206 long amount_after;
|
|
|
207 {
|
|
|
208 diff_T *dp;
|
|
|
209 diff_T *dprev;
|
|
|
210 diff_T *dnext;
|
|
|
211 int idx;
|
|
|
212 int i;
|
|
|
213 int inserted, deleted;
|
|
|
214 int n, off;
|
|
|
215 linenr_T last;
|
|
|
216 linenr_T lnum_deleted = line1; /* lnum of remaining deletion */
|
|
|
217 int check_unchanged;
|
|
|
218
|
|
|
219 /* Find the index for the current buffer. */
|
|
|
220 idx = diff_buf_idx(curbuf);
|
|
|
221 if (idx == DB_COUNT)
|
|
|
222 return; /* This buffer doesn't have diffs. */
|
|
|
223
|
|
|
224 if (line2 == MAXLNUM)
|
|
|
225 {
|
|
|
226 /* mark_adjust(99, MAXLNUM, 9, 0): insert lines */
|
|
|
227 inserted = amount;
|
|
|
228 deleted = 0;
|
|
|
229 }
|
|
|
230 else if (amount_after > 0)
|
|
|
231 {
|
|
|
232 /* mark_adjust(99, 98, MAXLNUM, 9): a change that inserts lines*/
|
|
|
233 inserted = amount_after;
|
|
|
234 deleted = 0;
|
|
|
235 }
|
|
|
236 else
|
|
|
237 {
|
|
|
238 /* mark_adjust(98, 99, MAXLNUM, -2): delete lines */
|
|
|
239 inserted = 0;
|
|
|
240 deleted = -amount_after;
|
|
|
241 }
|
|
|
242
|
|
|
243 dprev = NULL;
|
|
|
244 dp = first_diff;
|
|
|
245 for (;;)
|
|
|
246 {
|
|
|
247 /* If the change is after the previous diff block and before the next
|
|
|
248 * diff block, thus not touching an existing change, create a new diff
|
|
|
249 * block. Don't do this when ex_diffgetput() is busy. */
|
|
|
250 if ((dp == NULL || dp->df_lnum[idx] - 1 > line2
|
|
|
251 || (line2 == MAXLNUM && dp->df_lnum[idx] > line1))
|
|
|
252 && (dprev == NULL
|
|
|
253 || dprev->df_lnum[idx] + dprev->df_count[idx] < line1)
|
|
|
254 && !diff_busy)
|
|
|
255 {
|
|
|
256 dnext = diff_alloc_new(dprev, dp);
|
|
|
257 if (dnext == NULL)
|
|
|
258 return;
|
|
|
259
|
|
|
260 dnext->df_lnum[idx] = line1;
|
|
|
261 dnext->df_count[idx] = inserted;
|
|
|
262 for (i = 0; i < DB_COUNT; ++i)
|
|
|
263 if (diffbuf[i] != NULL && i != idx)
|
|
|
264 {
|
|
|
265 if (dprev == NULL)
|
|
|
266 dnext->df_lnum[i] = line1;
|
|
|
267 else
|
|
|
268 dnext->df_lnum[i] = line1
|
|
|
269 + (dprev->df_lnum[i] + dprev->df_count[i])
|
|
|
270 - (dprev->df_lnum[idx] + dprev->df_count[idx]);
|
|
|
271 dnext->df_count[i] = deleted;
|
|
|
272 }
|
|
|
273 }
|
|
|
274
|
|
|
275 /* if at end of the list, quit */
|
|
|
276 if (dp == NULL)
|
|
|
277 break;
|
|
|
278
|
|
|
279 /*
|
|
|
280 * Check for these situations:
|
|
|
281 * 1 2 3
|
|
|
282 * 1 2 3
|
|
|
283 * line1 2 3 4 5
|
|
|
284 * 2 3 4 5
|
|
|
285 * 2 3 4 5
|
|
|
286 * line2 2 3 4 5
|
|
|
287 * 3 5 6
|
|
|
288 * 3 5 6
|
|
|
289 */
|
|
|
290 /* compute last line of this change */
|
|
|
291 last = dp->df_lnum[idx] + dp->df_count[idx] - 1;
|
|
|
292
|
|
|
293 /* 1. change completely above line1: nothing to do */
|
|
|
294 if (last >= line1 - 1)
|
|
|
295 {
|
|
|
296 /* 6. change below line2: only adjust for amount_after; also when
|
|
|
297 * "deleted" became zero when deleted all lines between two diffs */
|
|
|
298 if (dp->df_lnum[idx] - (deleted + inserted != 0) > line2)
|
|
|
299 {
|
|
|
300 if (amount_after == 0)
|
|
|
301 break; /* nothing left to change */
|
|
|
302 dp->df_lnum[idx] += amount_after;
|
|
|
303 }
|
|
|
304 else
|
|
|
305 {
|
|
|
306 check_unchanged = FALSE;
|
|
|
307
|
|
|
308 /* 2. 3. 4. 5.: inserted/deleted lines touching this diff. */
|
|
|
309 if (deleted > 0)
|
|
|
310 {
|
|
|
311 if (dp->df_lnum[idx] >= line1)
|
|
|
312 {
|
|
|
313 off = dp->df_lnum[idx] - lnum_deleted;
|
|
|
314 if (last <= line2)
|
|
|
315 {
|
|
|
316 /* 4. delete all lines of diff */
|
|
|
317 if (dp->df_next != NULL
|
|
|
318 && dp->df_next->df_lnum[idx] - 1 <= line2)
|
|
|
319 {
|
|
|
320 /* delete continues in next diff, only do
|
|
|
321 * lines until that one */
|
|
|
322 n = dp->df_next->df_lnum[idx] - lnum_deleted;
|
|
|
323 deleted -= n;
|
|
|
324 n -= dp->df_count[idx];
|
|
|
325 lnum_deleted = dp->df_next->df_lnum[idx];
|
|
|
326 }
|
|
|
327 else
|
|
|
328 n = deleted - dp->df_count[idx];
|
|
|
329 dp->df_count[idx] = 0;
|
|
|
330 }
|
|
|
331 else
|
|
|
332 {
|
|
|
333 /* 5. delete lines at or just before top of diff */
|
|
|
334 n = off;
|
|
|
335 dp->df_count[idx] -= line2 - dp->df_lnum[idx] + 1;
|
|
|
336 check_unchanged = TRUE;
|
|
|
337 }
|
|
|
338 dp->df_lnum[idx] = line1;
|
|
|
339 }
|
|
|
340 else
|
|
|
341 {
|
|
|
342 off = 0;
|
|
|
343 if (last < line2)
|
|
|
344 {
|
|
|
345 /* 2. delete at end of of diff */
|
|
|
346 dp->df_count[idx] -= last - lnum_deleted + 1;
|
|
|
347 if (dp->df_next != NULL
|
|
|
348 && dp->df_next->df_lnum[idx] - 1 <= line2)
|
|
|
349 {
|
|
|
350 /* delete continues in next diff, only do
|
|
|
351 * lines until that one */
|
|
|
352 n = dp->df_next->df_lnum[idx] - 1 - last;
|
|
|
353 deleted -= dp->df_next->df_lnum[idx]
|
|
|
354 - lnum_deleted;
|
|
|
355 lnum_deleted = dp->df_next->df_lnum[idx];
|
|
|
356 }
|
|
|
357 else
|
|
|
358 n = line2 - last;
|
|
|
359 check_unchanged = TRUE;
|
|
|
360 }
|
|
|
361 else
|
|
|
362 {
|
|
|
363 /* 3. delete lines inside the diff */
|
|
|
364 n = 0;
|
|
|
365 dp->df_count[idx] -= deleted;
|
|
|
366 }
|
|
|
367 }
|
|
|
368
|
|
|
369 for (i = 0; i < DB_COUNT; ++i)
|
|
|
370 if (diffbuf[i] != NULL && i != idx)
|
|
|
371 {
|
|
|
372 dp->df_lnum[i] -= off;
|
|
|
373 dp->df_count[i] += n;
|
|
|
374 }
|
|
|
375 }
|
|
|
376 else
|
|
|
377 {
|
|
|
378 if (dp->df_lnum[idx] <= line1)
|
|
|
379 {
|
|
|
380 /* inserted lines somewhere in this diff */
|
|
|
381 dp->df_count[idx] += inserted;
|
|
|
382 check_unchanged = TRUE;
|
|
|
383 }
|
|
|
384 else
|
|
|
385 /* inserted lines somewhere above this diff */
|
|
|
386 dp->df_lnum[idx] += inserted;
|
|
|
387 }
|
|
|
388
|
|
|
389 if (check_unchanged)
|
|
|
390 /* Check if inserted lines are equal, may reduce the
|
|
|
391 * size of the diff. TODO: also check for equal lines
|
|
|
392 * in the middle and perhaps split the block. */
|
|
|
393 diff_check_unchanged(dp);
|
|
|
394 }
|
|
|
395 }
|
|
|
396
|
|
|
397 /* check if this block touches the previous one, may merge them. */
|
|
|
398 if (dprev != NULL && dprev->df_lnum[idx] + dprev->df_count[idx]
|
|
|
399 == dp->df_lnum[idx])
|
|
|
400 {
|
|
|
401 for (i = 0; i < DB_COUNT; ++i)
|
|
|
402 if (diffbuf[i] != NULL)
|
|
|
403 dprev->df_count[i] += dp->df_count[i];
|
|
|
404 dprev->df_next = dp->df_next;
|
|
|
405 vim_free(dp);
|
|
|
406 dp = dprev->df_next;
|
|
|
407 }
|
|
|
408 else
|
|
|
409 {
|
|
|
410 /* Advance to next entry. */
|
|
|
411 dprev = dp;
|
|
|
412 dp = dp->df_next;
|
|
|
413 }
|
|
|
414 }
|
|
|
415
|
|
|
416 dprev = NULL;
|
|
|
417 dp = first_diff;
|
|
|
418 while (dp != NULL)
|
|
|
419 {
|
|
|
420 /* All counts are zero, remove this entry. */
|
|
|
421 for (i = 0; i < DB_COUNT; ++i)
|
|
|
422 if (diffbuf[i] != NULL && dp->df_count[i] != 0)
|
|
|
423 break;
|
|
|
424 if (i == DB_COUNT)
|
|
|
425 {
|
|
|
426 dnext = dp->df_next;
|
|
|
427 vim_free(dp);
|
|
|
428 dp = dnext;
|
|
|
429 if (dprev == NULL)
|
|
|
430 first_diff = dnext;
|
|
|
431 else
|
|
|
432 dprev->df_next = dnext;
|
|
|
433 }
|
|
|
434 else
|
|
|
435 {
|
|
|
436 /* Advance to next entry. */
|
|
|
437 dprev = dp;
|
|
|
438 dp = dp->df_next;
|
|
|
439 }
|
|
|
440
|
|
|
441 }
|
|
|
442 diff_redraw(TRUE);
|
|
|
443
|
|
|
444 /* Recompute the scroll binding, may remove or add filler lines (e.g.,
|
|
|
445 * when adding lines above w_topline). */
|
|
|
446 check_scrollbind((linenr_T)0, 0L);
|
|
|
447 }
|
|
|
448
|
|
|
449 /*
|
|
|
450 * Allocate a new diff block and link it between "dprev" and "dp".
|
|
|
451 */
|
|
|
452 static diff_T *
|
|
|
453 diff_alloc_new(dprev, dp)
|
|
|
454 diff_T *dprev;
|
|
|
455 diff_T *dp;
|
|
|
456 {
|
|
|
457 diff_T *dnew;
|
|
|
458
|
|
|
459 dnew = (diff_T *)alloc((unsigned)sizeof(diff_T));
|
|
|
460 if (dnew != NULL)
|
|
|
461 {
|
|
|
462 dnew->df_next = dp;
|
|
|
463 if (dprev == NULL)
|
|
|
464 first_diff = dnew;
|
|
|
465 else
|
|
|
466 dprev->df_next = dnew;
|
|
|
467 }
|
|
|
468 return dnew;
|
|
|
469 }
|
|
|
470
|
|
|
471 /*
|
|
|
472 * Check if the diff block "dp" can be made smaller for lines at the start and
|
|
|
473 * end that are equal. Called after inserting lines.
|
|
|
474 * This may result in a change where all buffers have zero lines, the caller
|
|
|
475 * must take care of removing it.
|
|
|
476 */
|
|
|
477 static void
|
|
|
478 diff_check_unchanged(dp)
|
|
|
479 diff_T *dp;
|
|
|
480 {
|
|
|
481 int i_org;
|
|
|
482 int i_new;
|
|
|
483 int off_org, off_new;
|
|
|
484 char_u *line_org;
|
|
|
485 int dir = FORWARD;
|
|
|
486
|
|
|
487 /* Find the first buffers, use it as the original, compare the other
|
|
|
488 * buffer lines against this one. */
|
|
|
489 for (i_org = 0; i_org < DB_COUNT; ++i_org)
|
|
|
490 if (diffbuf[i_org] != NULL)
|
|
|
491 break;
|
|
|
492 if (i_org == DB_COUNT) /* safety check */
|
|
|
493 return;
|
|
|
494
|
|
|
495 if (diff_check_sanity(dp) == FAIL)
|
|
|
496 return;
|
|
|
497
|
|
|
498 /* First check lines at the top, then at the bottom. */
|
|
|
499 off_org = 0;
|
|
|
500 off_new = 0;
|
|
|
501 for (;;)
|
|
|
502 {
|
|
|
503 /* Repeat until a line is found which is different or the number of
|
|
|
504 * lines has become zero. */
|
|
|
505 while (dp->df_count[i_org] > 0)
|
|
|
506 {
|
|
|
507 /* Copy the line, the next ml_get() will invalidate it. */
|
|
|
508 if (dir == BACKWARD)
|
|
|
509 off_org = dp->df_count[i_org] - 1;
|
|
|
510 line_org = vim_strsave(ml_get_buf(diffbuf[i_org],
|
|
|
511 dp->df_lnum[i_org] + off_org, FALSE));
|
|
|
512 if (line_org == NULL)
|
|
|
513 return;
|
|
|
514 for (i_new = i_org + 1; i_new < DB_COUNT; ++i_new)
|
|
|
515 {
|
|
|
516 if (diffbuf[i_new] == NULL)
|
|
|
517 continue;
|
|
|
518 if (dir == BACKWARD)
|
|
|
519 off_new = dp->df_count[i_new] - 1;
|
|
|
520 /* if other buffer doesn't have this line, it was inserted */
|
|
|
521 if (off_new < 0 || off_new >= dp->df_count[i_new])
|
|
|
522 break;
|
|
|
523 if (diff_cmp(line_org, ml_get_buf(diffbuf[i_new],
|
|
|
524 dp->df_lnum[i_new] + off_new, FALSE)) != 0)
|
|
|
525 break;
|
|
|
526 }
|
|
|
527 vim_free(line_org);
|
|
|
528
|
|
|
529 /* Stop when a line isn't equal in all diff buffers. */
|
|
|
530 if (i_new != DB_COUNT)
|
|
|
531 break;
|
|
|
532
|
|
|
533 /* Line matched in all buffers, remove it from the diff. */
|
|
|
534 for (i_new = i_org; i_new < DB_COUNT; ++i_new)
|
|
|
535 if (diffbuf[i_new] != NULL)
|
|
|
536 {
|
|
|
537 if (dir == FORWARD)
|
|
|
538 ++dp->df_lnum[i_new];
|
|
|
539 --dp->df_count[i_new];
|
|
|
540 }
|
|
|
541 }
|
|
|
542 if (dir == BACKWARD)
|
|
|
543 break;
|
|
|
544 dir = BACKWARD;
|
|
|
545 }
|
|
|
546 }
|
|
|
547
|
|
|
548 /*
|
|
|
549 * Check if a diff block doesn't contain invalid line numbers.
|
|
|
550 * This can happen when the diff program returns invalid results.
|
|
|
551 */
|
|
|
552 static int
|
|
|
553 diff_check_sanity(dp)
|
|
|
554 diff_T *dp;
|
|
|
555 {
|
|
|
556 int i;
|
|
|
557
|
|
|
558 for (i = 0; i < DB_COUNT; ++i)
|
|
|
559 if (diffbuf[i] != NULL)
|
|
|
560 if (dp->df_lnum[i] + dp->df_count[i] - 1
|
|
|
561 > diffbuf[i]->b_ml.ml_line_count)
|
|
|
562 return FAIL;
|
|
|
563 return OK;
|
|
|
564 }
|
|
|
565
|
|
|
566 /*
|
|
|
567 * Mark all diff buffers for redraw.
|
|
|
568 */
|
|
|
569 static void
|
|
|
570 diff_redraw(dofold)
|
|
|
571 int dofold; /* also recompute the folds */
|
|
|
572 {
|
|
|
573 win_T *wp;
|
|
|
574 int n;
|
|
|
575
|
|
|
576 for (wp = firstwin; wp != NULL; wp = wp->w_next)
|
|
|
577 if (wp->w_p_diff)
|
|
|
578 {
|
|
|
579 redraw_win_later(wp, NOT_VALID);
|
|
|
580 #ifdef FEAT_FOLDING
|
|
|
581 if (dofold && foldmethodIsDiff(wp))
|
|
|
582 foldUpdateAll(wp);
|
|
|
583 #endif
|
|
|
584 /* A change may have made filler lines invalid, need to take care
|
|
|
585 * of that for other windows. */
|
|
|
586 if (wp != curwin && wp->w_topfill > 0)
|
|
|
587 {
|
|
|
588 n = diff_check(wp, wp->w_topline);
|
|
|
589 if (wp->w_topfill > n)
|
|
|
590 wp->w_topfill = (n < 0 ? 0 : n);
|
|
|
591 }
|
|
|
592 }
|
|
|
593 }
|
|
|
594
|
|
|
595 /*
|
|
|
596 * Write buffer "buf" to file "name".
|
|
|
597 * Always use 'fileformat' set to "unix".
|
|
|
598 * Return FAIL for failure
|
|
|
599 */
|
|
|
600 static int
|
|
|
601 diff_write(buf, fname)
|
|
|
602 buf_T *buf;
|
|
|
603 char_u *fname;
|
|
|
604 {
|
|
|
605 int r;
|
|
|
606 char_u *save_ff;
|
|
|
607
|
|
|
608 save_ff = buf->b_p_ff;
|
|
|
609 buf->b_p_ff = vim_strsave((char_u *)FF_UNIX);
|
|
|
610 r = buf_write(buf, fname, NULL, (linenr_T)1, buf->b_ml.ml_line_count,
|
|
|
611 NULL, FALSE, FALSE, FALSE, TRUE);
|
|
|
612 free_string_option(buf->b_p_ff);
|
|
|
613 buf->b_p_ff = save_ff;
|
|
|
614 return r;
|
|
|
615 }
|
|
|
616
|
|
|
617 /*
|
|
|
618 * Completely update the diffs for the buffers involved.
|
|
|
619 * This uses the ordinary "diff" command.
|
|
|
620 * The buffers are written to a file, also for unmodified buffers (the file
|
|
|
621 * could have been produced by autocommands, e.g. the netrw plugin).
|
|
|
622 */
|
|
|
623 /*ARGSUSED*/
|
|
|
624 void
|
|
|
625 ex_diffupdate(eap)
|
|
|
626 exarg_T *eap;
|
|
|
627 {
|
|
|
628 buf_T *buf;
|
|
|
629 int idx_orig;
|
|
|
630 int idx_new;
|
|
|
631 char_u *tmp_orig;
|
|
|
632 char_u *tmp_new;
|
|
|
633 char_u *tmp_diff;
|
|
|
634 FILE *fd;
|
|
|
635 int ok;
|
|
|
636
|
|
|
637 /* Delete all diffblocks. */
|
|
|
638 diff_clear();
|
|
|
639 diff_invalid = FALSE;
|
|
|
640
|
|
|
641 /* Use the first buffer as the original text. */
|
|
|
642 for (idx_orig = 0; idx_orig < DB_COUNT; ++idx_orig)
|
|
|
643 if (diffbuf[idx_orig] != NULL)
|
|
|
644 break;
|
|
|
645 if (idx_orig == DB_COUNT)
|
|
|
646 return;
|
|
|
647
|
|
|
648 /* Only need to do something when there is another buffer. */
|
|
|
649 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new)
|
|
|
650 if (diffbuf[idx_new] != NULL)
|
|
|
651 break;
|
|
|
652 if (idx_new == DB_COUNT)
|
|
|
653 return;
|
|
|
654
|
|
|
655 /* We need three temp file names. */
|
|
|
656 tmp_orig = vim_tempname('o');
|
|
|
657 tmp_new = vim_tempname('n');
|
|
|
658 tmp_diff = vim_tempname('d');
|
|
|
659 if (tmp_orig == NULL || tmp_new == NULL || tmp_diff == NULL)
|
|
|
660 goto theend;
|
|
|
661
|
|
|
662 /*
|
|
|
663 * Do a quick test if "diff" really works. Otherwise it looks like there
|
|
|
664 * are no differences. Can't use the return value, it's non-zero when
|
|
|
665 * there are differences.
|
|
|
666 * May try twice, first with "-a" and then without.
|
|
|
667 */
|
|
|
668 for (;;)
|
|
|
669 {
|
|
|
670 ok = FALSE;
|
|
|
671 fd = fopen((char *)tmp_orig, "w");
|
|
|
672 if (fd != NULL)
|
|
|
673 {
|
|
|
674 fwrite("line1\n", (size_t)6, (size_t)1, fd);
|
|
|
675 fclose(fd);
|
|
|
676 fd = fopen((char *)tmp_new, "w");
|
|
|
677 if (fd != NULL)
|
|
|
678 {
|
|
|
679 fwrite("line2\n", (size_t)6, (size_t)1, fd);
|
|
|
680 fclose(fd);
|
|
|
681 diff_file(tmp_orig, tmp_new, tmp_diff);
|
|
|
682 fd = fopen((char *)tmp_diff, "r");
|
|
|
683 if (fd != NULL)
|
|
|
684 {
|
|
|
685 char_u linebuf[LBUFLEN];
|
|
|
686
|
|
|
687 for (;;)
|
|
|
688 {
|
|
|
689 /* There must be a line that contains "1c1". */
|
|
|
690 if (tag_fgets(linebuf, LBUFLEN, fd))
|
|
|
691 break;
|
|
|
692 if (STRNCMP(linebuf, "1c1", 3) == 0)
|
|
|
693 ok = TRUE;
|
|
|
694 }
|
|
|
695 fclose(fd);
|
|
|
696 }
|
|
|
697 mch_remove(tmp_diff);
|
|
|
698 mch_remove(tmp_new);
|
|
|
699 }
|
|
|
700 mch_remove(tmp_orig);
|
|
|
701 }
|
|
|
702
|
|
|
703 #ifdef FEAT_EVAL
|
|
|
704 /* When using 'diffexpr' break here. */
|
|
|
705 if (*p_dex != NUL)
|
|
|
706 break;
|
|
|
707 #endif
|
|
|
708
|
|
|
709 #if defined(MSWIN) || defined(MSDOS)
|
|
|
710 /* If the "-a" argument works, also check if "--binary" works. */
|
|
|
711 if (ok && diff_a_works == MAYBE && diff_bin_works == MAYBE)
|
|
|
712 {
|
|
|
713 diff_a_works = TRUE;
|
|
|
714 diff_bin_works = TRUE;
|
|
|
715 continue;
|
|
|
716 }
|
|
|
717 if (!ok && diff_a_works == TRUE && diff_bin_works == TRUE)
|
|
|
718 {
|
|
|
719 /* Tried --binary, but it failed. "-a" works though. */
|
|
|
720 diff_bin_works = FALSE;
|
|
|
721 ok = TRUE;
|
|
|
722 }
|
|
|
723 #endif
|
|
|
724
|
|
|
725 /* If we checked if "-a" works already, break here. */
|
|
|
726 if (diff_a_works != MAYBE)
|
|
|
727 break;
|
|
|
728 diff_a_works = ok;
|
|
|
729
|
|
|
730 /* If "-a" works break here, otherwise retry without "-a". */
|
|
|
731 if (ok)
|
|
|
732 break;
|
|
|
733 }
|
|
|
734 if (!ok)
|
|
|
735 {
|
|
|
736 EMSG(_("E97: Cannot create diffs"));
|
|
|
737 diff_a_works = MAYBE;
|
|
|
738 #if defined(MSWIN) || defined(MSDOS)
|
|
|
739 diff_bin_works = MAYBE;
|
|
|
740 #endif
|
|
|
741 goto theend;
|
|
|
742 }
|
|
|
743
|
|
|
744 /* Write the first buffer to a tempfile. */
|
|
|
745 buf = diffbuf[idx_orig];
|
|
|
746 if (diff_write(buf, tmp_orig) == FAIL)
|
|
|
747 goto theend;
|
|
|
748
|
|
|
749 /* Make a difference between the first buffer and every other. */
|
|
|
750 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new)
|
|
|
751 {
|
|
|
752 buf = diffbuf[idx_new];
|
|
|
753 if (buf == NULL)
|
|
|
754 continue;
|
|
|
755 if (diff_write(buf, tmp_new) == FAIL)
|
|
|
756 continue;
|
|
|
757 diff_file(tmp_orig, tmp_new, tmp_diff);
|
|
|
758
|
|
|
759 /* Read the diff output and add each entry to the diff list. */
|
|
|
760 diff_read(idx_orig, idx_new, tmp_diff);
|
|
|
761 mch_remove(tmp_diff);
|
|
|
762 mch_remove(tmp_new);
|
|
|
763 }
|
|
|
764 mch_remove(tmp_orig);
|
|
|
765
|
|
|
766 diff_redraw(TRUE);
|
|
|
767
|
|
|
768 theend:
|
|
|
769 vim_free(tmp_orig);
|
|
|
770 vim_free(tmp_new);
|
|
|
771 vim_free(tmp_diff);
|
|
|
772 }
|
|
|
773
|
|
|
774 /*
|
|
|
775 * Make a diff between files "tmp_orig" and "tmp_new", results in "tmp_diff".
|
|
|
776 */
|
|
|
777 static void
|
|
|
778 diff_file(tmp_orig, tmp_new, tmp_diff)
|
|
|
779 char_u *tmp_orig;
|
|
|
780 char_u *tmp_new;
|
|
|
781 char_u *tmp_diff;
|
|
|
782 {
|
|
|
783 char_u *cmd;
|
|
|
784
|
|
|
785 #ifdef FEAT_EVAL
|
|
|
786 if (*p_dex != NUL)
|
|
|
787 /* Use 'diffexpr' to generate the diff file. */
|
|
|
788 eval_diff(tmp_orig, tmp_new, tmp_diff);
|
|
|
789 else
|
|
|
790 #endif
|
|
|
791 {
|
|
|
792 cmd = alloc((unsigned)(STRLEN(tmp_orig) + STRLEN(tmp_new)
|
|
|
793 + STRLEN(tmp_diff) + STRLEN(p_srr) + 27));
|
|
|
794 if (cmd != NULL)
|
|
|
795 {
|
|
193
|
796 /* We don't want $DIFF_OPTIONS to get in the way. */
|
|
|
797 if (getenv("DIFF_OPTIONS"))
|
|
|
798 vim_setenv((char_u *)"DIFF_OPTIONS", (char_u *)"");
|
|
|
799
|
|
7
|
800 /* Build the diff command and execute it. Always use -a, binary
|
|
|
801 * differences are of no use. Ignore errors, diff returns
|
|
|
802 * non-zero when differences have been found. */
|
|
|
803 sprintf((char *)cmd, "diff %s%s%s%s%s %s",
|
|
|
804 diff_a_works == FALSE ? "" : "-a ",
|
|
|
805 #if defined(MSWIN) || defined(MSDOS)
|
|
|
806 diff_bin_works == TRUE ? "--binary " : "",
|
|
|
807 #else
|
|
|
808 "",
|
|
|
809 #endif
|
|
|
810 (diff_flags & DIFF_IWHITE) ? "-b " : "",
|
|
|
811 (diff_flags & DIFF_ICASE) ? "-i " : "",
|
|
|
812 tmp_orig, tmp_new);
|
|
|
813 append_redir(cmd, p_srr, tmp_diff);
|
|
|
814 (void)call_shell(cmd, SHELL_FILTER|SHELL_SILENT|SHELL_DOOUT);
|
|
|
815 vim_free(cmd);
|
|
|
816 }
|
|
|
817 }
|
|
|
818 }
|
|
|
819
|
|
|
820 /*
|
|
|
821 * Create a new version of a file from the current buffer and a diff file.
|
|
|
822 * The buffer is written to a file, also for unmodified buffers (the file
|
|
|
823 * could have been produced by autocommands, e.g. the netrw plugin).
|
|
|
824 */
|
|
|
825 void
|
|
|
826 ex_diffpatch(eap)
|
|
|
827 exarg_T *eap;
|
|
|
828 {
|
|
|
829 char_u *tmp_orig; /* name of original temp file */
|
|
|
830 char_u *tmp_new; /* name of patched temp file */
|
|
|
831 char_u *buf = NULL;
|
|
|
832 win_T *old_curwin = curwin;
|
|
|
833 char_u *newname = NULL; /* name of patched file buffer */
|
|
|
834 #ifdef UNIX
|
|
|
835 char_u dirbuf[MAXPATHL];
|
|
|
836 char_u *fullname = NULL;
|
|
|
837 #endif
|
|
|
838 #ifdef FEAT_BROWSE
|
|
|
839 char_u *browseFile = NULL;
|
|
|
840 int browse_flag = cmdmod.browse;
|
|
|
841 #endif
|
|
|
842
|
|
|
843 #ifdef FEAT_BROWSE
|
|
|
844 if (cmdmod.browse)
|
|
|
845 {
|
|
28
|
846 browseFile = do_browse(0, (char_u *)_("Patch file"),
|
|
7
|
847 eap->arg, NULL, NULL, BROWSE_FILTER_ALL_FILES, NULL);
|
|
|
848 if (browseFile == NULL)
|
|
|
849 return; /* operation cancelled */
|
|
|
850 eap->arg = browseFile;
|
|
|
851 cmdmod.browse = FALSE; /* don't let do_ecmd() browse again */
|
|
|
852 }
|
|
|
853 #endif
|
|
|
854
|
|
|
855 /* We need two temp file names. */
|
|
|
856 tmp_orig = vim_tempname('o');
|
|
|
857 tmp_new = vim_tempname('n');
|
|
|
858 if (tmp_orig == NULL || tmp_new == NULL)
|
|
|
859 goto theend;
|
|
|
860
|
|
|
861 /* Write the current buffer to "tmp_orig". */
|
|
|
862 if (buf_write(curbuf, tmp_orig, NULL,
|
|
|
863 (linenr_T)1, curbuf->b_ml.ml_line_count,
|
|
|
864 NULL, FALSE, FALSE, FALSE, TRUE) == FAIL)
|
|
|
865 goto theend;
|
|
|
866
|
|
|
867 #ifdef UNIX
|
|
|
868 /* Get the absolute path of the patchfile, changing directory below. */
|
|
|
869 fullname = FullName_save(eap->arg, FALSE);
|
|
|
870 #endif
|
|
|
871 buf = alloc((unsigned)(STRLEN(tmp_orig) + (
|
|
|
872 # ifdef UNIX
|
|
|
873 fullname != NULL ? STRLEN(fullname) :
|
|
|
874 # endif
|
|
|
875 STRLEN(eap->arg)) + STRLEN(tmp_new) + 16));
|
|
|
876 if (buf == NULL)
|
|
|
877 goto theend;
|
|
|
878
|
|
|
879 #ifdef UNIX
|
|
|
880 /* Temporaraly chdir to /tmp, to avoid patching files in the current
|
|
|
881 * directory when the patch file contains more than one patch. When we
|
|
|
882 * have our own temp dir use that instead, it will be cleaned up when we
|
|
|
883 * exit (any .rej files created). Don't change directory if we can't
|
|
|
884 * return to the current. */
|
|
|
885 if (mch_dirname(dirbuf, MAXPATHL) != OK || mch_chdir((char *)dirbuf) != 0)
|
|
|
886 dirbuf[0] = NUL;
|
|
|
887 else
|
|
|
888 {
|
|
|
889 # ifdef TEMPDIRNAMES
|
|
|
890 if (vim_tempdir != NULL)
|
|
|
891 mch_chdir((char *)vim_tempdir);
|
|
|
892 else
|
|
|
893 # endif
|
|
|
894 mch_chdir("/tmp");
|
|
|
895 shorten_fnames(TRUE);
|
|
|
896 }
|
|
|
897 #endif
|
|
|
898
|
|
|
899 #ifdef FEAT_EVAL
|
|
|
900 if (*p_pex != NUL)
|
|
|
901 /* Use 'patchexpr' to generate the new file. */
|
|
|
902 eval_patch(tmp_orig,
|
|
|
903 # ifdef UNIX
|
|
|
904 fullname != NULL ? fullname :
|
|
|
905 # endif
|
|
|
906 eap->arg, tmp_new);
|
|
|
907 else
|
|
|
908 #endif
|
|
|
909 {
|
|
|
910 /* Build the patch command and execute it. Ignore errors. Switch to
|
|
|
911 * cooked mode to allow the user to respond to prompts. */
|
|
|
912 sprintf((char *)buf, "patch -o %s %s < \"%s\"", tmp_new, tmp_orig,
|
|
|
913 # ifdef UNIX
|
|
|
914 fullname != NULL ? fullname :
|
|
|
915 # endif
|
|
|
916 eap->arg);
|
|
|
917 (void)call_shell(buf, SHELL_FILTER | SHELL_COOKED);
|
|
|
918 }
|
|
|
919
|
|
|
920 #ifdef UNIX
|
|
|
921 if (dirbuf[0] != NUL)
|
|
|
922 {
|
|
|
923 if (mch_chdir((char *)dirbuf) != 0)
|
|
|
924 EMSG(_(e_prev_dir));
|
|
|
925 shorten_fnames(TRUE);
|
|
|
926 }
|
|
|
927 #endif
|
|
|
928
|
|
|
929 /* patch probably has written over the screen */
|
|
|
930 redraw_later(CLEAR);
|
|
|
931
|
|
|
932 /* Delete any .orig or .rej file created. */
|
|
|
933 STRCPY(buf, tmp_new);
|
|
|
934 STRCAT(buf, ".orig");
|
|
|
935 mch_remove(buf);
|
|
|
936 STRCPY(buf, tmp_new);
|
|
|
937 STRCAT(buf, ".rej");
|
|
|
938 mch_remove(buf);
|
|
|
939
|
|
|
940 if (curbuf->b_fname != NULL)
|
|
|
941 {
|
|
|
942 newname = vim_strnsave(curbuf->b_fname,
|
|
|
943 (int)(STRLEN(curbuf->b_fname) + 4));
|
|
|
944 if (newname != NULL)
|
|
|
945 STRCAT(newname, ".new");
|
|
|
946 }
|
|
|
947
|
|
|
948 #ifdef FEAT_GUI
|
|
|
949 need_mouse_correct = TRUE;
|
|
|
950 #endif
|
|
|
951 if (win_split(0, 0) != FAIL)
|
|
|
952 {
|
|
|
953 /* Pretend it was a ":split fname" command */
|
|
|
954 eap->cmdidx = CMD_split;
|
|
|
955 eap->arg = tmp_new;
|
|
|
956 do_exedit(eap, old_curwin);
|
|
|
957
|
|
|
958 if (curwin != old_curwin) /* split must have worked */
|
|
|
959 {
|
|
|
960 /* Set 'diff', 'scrollbind' on and 'wrap' off. */
|
|
|
961 diff_win_options(curwin, TRUE);
|
|
|
962 diff_win_options(old_curwin, TRUE);
|
|
|
963
|
|
|
964 if (newname != NULL)
|
|
|
965 {
|
|
|
966 /* do a ":file filename.new" on the patched buffer */
|
|
|
967 eap->arg = newname;
|
|
|
968 ex_file(eap);
|
|
|
969
|
|
|
970 #ifdef FEAT_AUTOCMD
|
|
|
971 /* Do filetype detection with the new name. */
|
|
|
972 do_cmdline_cmd((char_u *)":doau filetypedetect BufRead");
|
|
|
973 #endif
|
|
|
974 }
|
|
|
975 }
|
|
|
976 }
|
|
|
977
|
|
|
978 theend:
|
|
|
979 if (tmp_orig != NULL)
|
|
|
980 mch_remove(tmp_orig);
|
|
|
981 vim_free(tmp_orig);
|
|
|
982 if (tmp_new != NULL)
|
|
|
983 mch_remove(tmp_new);
|
|
|
984 vim_free(tmp_new);
|
|
|
985 vim_free(newname);
|
|
|
986 vim_free(buf);
|
|
|
987 #ifdef UNIX
|
|
|
988 vim_free(fullname);
|
|
|
989 #endif
|
|
|
990 #ifdef FEAT_BROWSE
|
|
|
991 vim_free(browseFile);
|
|
|
992 cmdmod.browse = browse_flag;
|
|
|
993 #endif
|
|
|
994 }
|
|
|
995
|
|
|
996 /*
|
|
|
997 * Split the window and edit another file, setting options to show the diffs.
|
|
|
998 */
|
|
|
999 void
|
|
|
1000 ex_diffsplit(eap)
|
|
|
1001 exarg_T *eap;
|
|
|
1002 {
|
|
|
1003 win_T *old_curwin = curwin;
|
|
|
1004
|
|
|
1005 #ifdef FEAT_GUI
|
|
|
1006 need_mouse_correct = TRUE;
|
|
|
1007 #endif
|
|
|
1008 if (win_split(0, 0) != FAIL)
|
|
|
1009 {
|
|
|
1010 /* Pretend it was a ":split fname" command */
|
|
|
1011 eap->cmdidx = CMD_split;
|
|
|
1012 do_exedit(eap, old_curwin);
|
|
|
1013
|
|
|
1014 if (curwin != old_curwin) /* split must have worked */
|
|
|
1015 {
|
|
|
1016 /* Set 'diff', 'scrollbind' on and 'wrap' off. */
|
|
|
1017 diff_win_options(curwin, TRUE);
|
|
|
1018 diff_win_options(old_curwin, TRUE);
|
|
|
1019 }
|
|
|
1020 }
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 /*
|
|
|
1024 * Set options to show difs for the current window.
|
|
|
1025 */
|
|
|
1026 /*ARGSUSED*/
|
|
|
1027 void
|
|
|
1028 ex_diffthis(eap)
|
|
|
1029 exarg_T *eap;
|
|
|
1030 {
|
|
|
1031 /* Set 'diff', 'scrollbind' on and 'wrap' off. */
|
|
|
1032 diff_win_options(curwin, TRUE);
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 /*
|
|
|
1036 * Set options in window "wp" for diff mode.
|
|
|
1037 */
|
|
|
1038 void
|
|
|
1039 diff_win_options(wp, addbuf)
|
|
|
1040 win_T *wp;
|
|
|
1041 int addbuf; /* Add buffer to diff. */
|
|
|
1042 {
|
|
|
1043 wp->w_p_diff = TRUE;
|
|
|
1044 wp->w_p_scb = TRUE;
|
|
|
1045 wp->w_p_wrap = FALSE;
|
|
|
1046 # ifdef FEAT_FOLDING
|
|
|
1047 {
|
|
|
1048 win_T *old_curwin = curwin;
|
|
|
1049
|
|
|
1050 curwin = wp;
|
|
|
1051 curbuf = curwin->w_buffer;
|
|
|
1052 set_string_option_direct((char_u *)"fdm", -1, (char_u *)"diff",
|
|
|
1053 OPT_LOCAL|OPT_FREE);
|
|
|
1054 curwin = old_curwin;
|
|
|
1055 curbuf = curwin->w_buffer;
|
|
|
1056 wp->w_p_fdc = 2;
|
|
|
1057 wp->w_p_fen = TRUE;
|
|
|
1058 wp->w_p_fdl = 0;
|
|
|
1059 foldUpdateAll(wp);
|
|
16
|
1060 /* make sure topline is not halfway a fold */
|
|
|
1061 changed_window_setting_win(wp);
|
|
7
|
1062 }
|
|
|
1063 # endif
|
|
|
1064 #ifdef FEAT_SCROLLBIND
|
|
|
1065 if (vim_strchr(p_sbo, 'h') == NULL)
|
|
|
1066 do_cmdline_cmd((char_u *)"set sbo+=hor");
|
|
|
1067 #endif
|
|
|
1068
|
|
|
1069 if (addbuf)
|
|
|
1070 diff_buf_add(wp->w_buffer);
|
|
|
1071 redraw_win_later(wp, NOT_VALID);
|
|
|
1072 }
|
|
|
1073
|
|
|
1074 /*
|
|
16
|
1075 * Set options not to show diffs. For the current window or all windows.
|
|
|
1076 */
|
|
|
1077 void
|
|
|
1078 ex_diffoff(eap)
|
|
|
1079 exarg_T *eap;
|
|
|
1080 {
|
|
|
1081 win_T *wp;
|
|
|
1082 win_T *old_curwin = curwin;
|
|
|
1083 #ifdef FEAT_SCROLLBIND
|
|
|
1084 int diffwin = FALSE;
|
|
|
1085 #endif
|
|
|
1086
|
|
|
1087 for (wp = firstwin; wp != NULL; wp = wp->w_next)
|
|
|
1088 {
|
|
|
1089 if (wp == curwin || eap->forceit)
|
|
|
1090 {
|
|
|
1091 /* Set 'diff', 'scrollbind' off and 'wrap' on. */
|
|
|
1092 wp->w_p_diff = FALSE;
|
|
|
1093 wp->w_p_scb = FALSE;
|
|
|
1094 wp->w_p_wrap = TRUE;
|
|
|
1095 #ifdef FEAT_FOLDING
|
|
|
1096 curwin = wp;
|
|
|
1097 curbuf = curwin->w_buffer;
|
|
|
1098 set_string_option_direct((char_u *)"fdm", -1,
|
|
|
1099 (char_u *)"manual", OPT_LOCAL|OPT_FREE);
|
|
|
1100 curwin = old_curwin;
|
|
|
1101 curbuf = curwin->w_buffer;
|
|
|
1102 wp->w_p_fdc = 0;
|
|
|
1103 wp->w_p_fen = FALSE;
|
|
|
1104 wp->w_p_fdl = 0;
|
|
|
1105 foldUpdateAll(wp);
|
|
|
1106 /* make sure topline is not halfway a fold */
|
|
|
1107 changed_window_setting_win(wp);
|
|
|
1108 #endif
|
|
|
1109 diff_buf_adjust(wp);
|
|
|
1110 }
|
|
|
1111 #ifdef FEAT_SCROLLBIND
|
|
|
1112 diffwin |= wp->w_p_diff;
|
|
|
1113 #endif
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 #ifdef FEAT_SCROLLBIND
|
|
|
1117 /* Remove "hor" from from 'scrollopt' if there are no diff windows left. */
|
|
|
1118 if (!diffwin && vim_strchr(p_sbo, 'h') != NULL)
|
|
|
1119 do_cmdline_cmd((char_u *)"set sbo-=hor");
|
|
|
1120 #endif
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 /*
|
|
7
|
1124 * Read the diff output and add each entry to the diff list.
|
|
|
1125 */
|
|
|
1126 static void
|
|
|
1127 diff_read(idx_orig, idx_new, fname)
|
|
|
1128 int idx_orig; /* idx of original file */
|
|
|
1129 int idx_new; /* idx of new file */
|
|
|
1130 char_u *fname; /* name of diff output file */
|
|
|
1131 {
|
|
|
1132 FILE *fd;
|
|
|
1133 diff_T *dprev = NULL;
|
|
|
1134 diff_T *dp = first_diff;
|
|
|
1135 diff_T *dn, *dpl;
|
|
|
1136 long f1, l1, f2, l2;
|
|
|
1137 char_u linebuf[LBUFLEN]; /* only need to hold the diff line */
|
|
|
1138 int difftype;
|
|
|
1139 char_u *p;
|
|
|
1140 long off;
|
|
|
1141 int i;
|
|
|
1142 linenr_T lnum_orig, lnum_new;
|
|
|
1143 long count_orig, count_new;
|
|
|
1144 int notset = TRUE; /* block "*dp" not set yet */
|
|
|
1145
|
|
|
1146 fd = fopen((char *)fname, "r");
|
|
|
1147 if (fd == NULL)
|
|
|
1148 {
|
|
|
1149 EMSG(_("E98: Cannot read diff output"));
|
|
|
1150 return;
|
|
|
1151 }
|
|
|
1152
|
|
|
1153 for (;;)
|
|
|
1154 {
|
|
|
1155 if (tag_fgets(linebuf, LBUFLEN, fd))
|
|
|
1156 break; /* end of file */
|
|
|
1157 if (!isdigit(*linebuf))
|
|
|
1158 continue; /* not the start of a diff block */
|
|
|
1159
|
|
|
1160 /* This line must be one of three formats:
|
|
|
1161 * {first}[,{last}]c{first}[,{last}]
|
|
|
1162 * {first}a{first}[,{last}]
|
|
|
1163 * {first}[,{last}]d{first}
|
|
|
1164 */
|
|
|
1165 p = linebuf;
|
|
|
1166 f1 = getdigits(&p);
|
|
|
1167 if (*p == ',')
|
|
|
1168 {
|
|
|
1169 ++p;
|
|
|
1170 l1 = getdigits(&p);
|
|
|
1171 }
|
|
|
1172 else
|
|
|
1173 l1 = f1;
|
|
|
1174 if (*p != 'a' && *p != 'c' && *p != 'd')
|
|
|
1175 continue; /* invalid diff format */
|
|
|
1176 difftype = *p++;
|
|
|
1177 f2 = getdigits(&p);
|
|
|
1178 if (*p == ',')
|
|
|
1179 {
|
|
|
1180 ++p;
|
|
|
1181 l2 = getdigits(&p);
|
|
|
1182 }
|
|
|
1183 else
|
|
|
1184 l2 = f2;
|
|
|
1185 if (l1 < f1 || l2 < f2)
|
|
|
1186 continue; /* invalid line range */
|
|
|
1187
|
|
|
1188 if (difftype == 'a')
|
|
|
1189 {
|
|
|
1190 lnum_orig = f1 + 1;
|
|
|
1191 count_orig = 0;
|
|
|
1192 }
|
|
|
1193 else
|
|
|
1194 {
|
|
|
1195 lnum_orig = f1;
|
|
|
1196 count_orig = l1 - f1 + 1;
|
|
|
1197 }
|
|
|
1198 if (difftype == 'd')
|
|
|
1199 {
|
|
|
1200 lnum_new = f2 + 1;
|
|
|
1201 count_new = 0;
|
|
|
1202 }
|
|
|
1203 else
|
|
|
1204 {
|
|
|
1205 lnum_new = f2;
|
|
|
1206 count_new = l2 - f2 + 1;
|
|
|
1207 }
|
|
|
1208
|
|
|
1209 /* Go over blocks before the change, for which orig and new are equal.
|
|
|
1210 * Copy blocks from orig to new. */
|
|
|
1211 while (dp != NULL
|
|
|
1212 && lnum_orig > dp->df_lnum[idx_orig] + dp->df_count[idx_orig])
|
|
|
1213 {
|
|
|
1214 if (notset)
|
|
|
1215 diff_copy_entry(dprev, dp, idx_orig, idx_new);
|
|
|
1216 dprev = dp;
|
|
|
1217 dp = dp->df_next;
|
|
|
1218 notset = TRUE;
|
|
|
1219 }
|
|
|
1220
|
|
|
1221 if (dp != NULL
|
|
|
1222 && lnum_orig <= dp->df_lnum[idx_orig] + dp->df_count[idx_orig]
|
|
|
1223 && lnum_orig + count_orig >= dp->df_lnum[idx_orig])
|
|
|
1224 {
|
|
|
1225 /* New block overlaps with existing block(s).
|
|
|
1226 * First find last block that overlaps. */
|
|
|
1227 for (dpl = dp; dpl->df_next != NULL; dpl = dpl->df_next)
|
|
|
1228 if (lnum_orig + count_orig < dpl->df_next->df_lnum[idx_orig])
|
|
|
1229 break;
|
|
|
1230
|
|
|
1231 /* If the newly found block starts before the old one, set the
|
|
|
1232 * start back a number of lines. */
|
|
|
1233 off = dp->df_lnum[idx_orig] - lnum_orig;
|
|
|
1234 if (off > 0)
|
|
|
1235 {
|
|
|
1236 for (i = idx_orig; i < idx_new; ++i)
|
|
|
1237 if (diffbuf[i] != NULL)
|
|
|
1238 dp->df_lnum[i] -= off;
|
|
|
1239 dp->df_lnum[idx_new] = lnum_new;
|
|
|
1240 dp->df_count[idx_new] = count_new;
|
|
|
1241 }
|
|
|
1242 else if (notset)
|
|
|
1243 {
|
|
|
1244 /* new block inside existing one, adjust new block */
|
|
|
1245 dp->df_lnum[idx_new] = lnum_new + off;
|
|
|
1246 dp->df_count[idx_new] = count_new - off;
|
|
|
1247 }
|
|
|
1248 else
|
|
|
1249 /* second overlap of new block with existing block */
|
|
|
1250 dp->df_count[idx_new] += count_new - count_orig;
|
|
|
1251
|
|
|
1252 /* Adjust the size of the block to include all the lines to the
|
|
|
1253 * end of the existing block or the new diff, whatever ends last. */
|
|
|
1254 off = (lnum_orig + count_orig)
|
|
|
1255 - (dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig]);
|
|
|
1256 if (off < 0)
|
|
|
1257 {
|
|
|
1258 /* new change ends in existing block, adjust the end if not
|
|
|
1259 * done already */
|
|
|
1260 if (notset)
|
|
|
1261 dp->df_count[idx_new] += -off;
|
|
|
1262 off = 0;
|
|
|
1263 }
|
|
|
1264 for (i = idx_orig; i < idx_new + !notset; ++i)
|
|
|
1265 if (diffbuf[i] != NULL)
|
|
|
1266 dp->df_count[i] = dpl->df_lnum[i] + dpl->df_count[i]
|
|
|
1267 - dp->df_lnum[i] + off;
|
|
|
1268
|
|
|
1269 /* Delete the diff blocks that have been merged into one. */
|
|
|
1270 dn = dp->df_next;
|
|
|
1271 dp->df_next = dpl->df_next;
|
|
|
1272 while (dn != dp->df_next)
|
|
|
1273 {
|
|
|
1274 dpl = dn->df_next;
|
|
|
1275 vim_free(dn);
|
|
|
1276 dn = dpl;
|
|
|
1277 }
|
|
|
1278 }
|
|
|
1279 else
|
|
|
1280 {
|
|
|
1281 /* Allocate a new diffblock. */
|
|
|
1282 dp = diff_alloc_new(dprev, dp);
|
|
|
1283 if (dp == NULL)
|
|
|
1284 return;
|
|
|
1285
|
|
|
1286 dp->df_lnum[idx_orig] = lnum_orig;
|
|
|
1287 dp->df_count[idx_orig] = count_orig;
|
|
|
1288 dp->df_lnum[idx_new] = lnum_new;
|
|
|
1289 dp->df_count[idx_new] = count_new;
|
|
|
1290
|
|
|
1291 /* Set values for other buffers, these must be equal to the
|
|
|
1292 * original buffer, otherwise there would have been a change
|
|
|
1293 * already. */
|
|
|
1294 for (i = idx_orig + 1; i < idx_new; ++i)
|
|
|
1295 if (diffbuf[i] != NULL)
|
|
|
1296 diff_copy_entry(dprev, dp, idx_orig, i);
|
|
|
1297 }
|
|
|
1298 notset = FALSE; /* "*dp" has been set */
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 /* for remaining diff blocks orig and new are equal */
|
|
|
1302 while (dp != NULL)
|
|
|
1303 {
|
|
|
1304 if (notset)
|
|
|
1305 diff_copy_entry(dprev, dp, idx_orig, idx_new);
|
|
|
1306 dprev = dp;
|
|
|
1307 dp = dp->df_next;
|
|
|
1308 notset = TRUE;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 fclose(fd);
|
|
|
1312 }
|
|
|
1313
|
|
|
1314 /*
|
|
|
1315 * Copy an entry at "dp" from "idx_orig" to "idx_new".
|
|
|
1316 */
|
|
|
1317 static void
|
|
|
1318 diff_copy_entry(dprev, dp, idx_orig, idx_new)
|
|
|
1319 diff_T *dprev;
|
|
|
1320 diff_T *dp;
|
|
|
1321 int idx_orig;
|
|
|
1322 int idx_new;
|
|
|
1323 {
|
|
|
1324 long off;
|
|
|
1325
|
|
|
1326 if (dprev == NULL)
|
|
|
1327 off = 0;
|
|
|
1328 else
|
|
|
1329 off = (dprev->df_lnum[idx_orig] + dprev->df_count[idx_orig])
|
|
|
1330 - (dprev->df_lnum[idx_new] + dprev->df_count[idx_new]);
|
|
|
1331 dp->df_lnum[idx_new] = dp->df_lnum[idx_orig] - off;
|
|
|
1332 dp->df_count[idx_new] = dp->df_count[idx_orig];
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 /*
|
|
|
1336 * Clear the list of diffblocks.
|
|
|
1337 */
|
|
358
|
1338 void
|
|
7
|
1339 diff_clear()
|
|
|
1340 {
|
|
|
1341 diff_T *p, *next_p;
|
|
|
1342
|
|
|
1343 for (p = first_diff; p != NULL; p = next_p)
|
|
|
1344 {
|
|
|
1345 next_p = p->df_next;
|
|
|
1346 vim_free(p);
|
|
|
1347 }
|
|
|
1348 first_diff = NULL;
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 /*
|
|
|
1352 * Check diff status for line "lnum" in buffer "buf":
|
|
|
1353 * Returns 0 for nothing special
|
|
|
1354 * Returns -1 for a line that should be highlighted as changed.
|
|
|
1355 * Returns -2 for a line that should be highlighted as added/deleted.
|
|
|
1356 * Returns > 0 for inserting that many filler lines above it (never happens
|
|
|
1357 * when 'diffopt' doesn't contain "filler").
|
|
|
1358 * This should only be used for windows where 'diff' is set.
|
|
|
1359 */
|
|
|
1360 int
|
|
|
1361 diff_check(wp, lnum)
|
|
|
1362 win_T *wp;
|
|
|
1363 linenr_T lnum;
|
|
|
1364 {
|
|
|
1365 int idx; /* index in diffbuf[] for this buffer */
|
|
|
1366 diff_T *dp;
|
|
|
1367 int maxcount;
|
|
|
1368 int i;
|
|
|
1369 buf_T *buf = wp->w_buffer;
|
|
|
1370 int cmp;
|
|
|
1371
|
|
|
1372 if (diff_invalid)
|
|
|
1373 ex_diffupdate(NULL); /* update after a big change */
|
|
|
1374
|
|
|
1375 if (first_diff == NULL || !wp->w_p_diff) /* no diffs at all */
|
|
|
1376 return 0;
|
|
|
1377
|
|
|
1378 /* safety check: "lnum" must be a buffer line */
|
|
|
1379 if (lnum < 1 || lnum > buf->b_ml.ml_line_count + 1)
|
|
|
1380 return 0;
|
|
|
1381
|
|
|
1382 idx = diff_buf_idx(buf);
|
|
|
1383 if (idx == DB_COUNT)
|
|
|
1384 return 0; /* no diffs for buffer "buf" */
|
|
|
1385
|
|
|
1386 #ifdef FEAT_FOLDING
|
|
|
1387 /* A closed fold never has filler lines. */
|
|
|
1388 if (hasFoldingWin(wp, lnum, NULL, NULL, TRUE, NULL))
|
|
|
1389 return 0;
|
|
|
1390 #endif
|
|
|
1391
|
|
|
1392 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
|
1393 for (dp = first_diff; dp != NULL; dp = dp->df_next)
|
|
|
1394 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1395 break;
|
|
|
1396 if (dp == NULL || lnum < dp->df_lnum[idx])
|
|
|
1397 return 0;
|
|
|
1398
|
|
|
1399 if (lnum < dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1400 {
|
|
|
1401 int zero = FALSE;
|
|
|
1402
|
|
|
1403 /* Changed or inserted line. If the other buffers have a count of
|
|
|
1404 * zero, the lines were inserted. If the other buffers have the same
|
|
|
1405 * count, check if the lines are identical. */
|
|
|
1406 cmp = FALSE;
|
|
|
1407 for (i = 0; i < DB_COUNT; ++i)
|
|
|
1408 if (i != idx && diffbuf[i] != NULL)
|
|
|
1409 {
|
|
|
1410 if (dp->df_count[i] == 0)
|
|
|
1411 zero = TRUE;
|
|
|
1412 else
|
|
|
1413 {
|
|
|
1414 if (dp->df_count[i] != dp->df_count[idx])
|
|
|
1415 return -1; /* nr of lines changed. */
|
|
|
1416 cmp = TRUE;
|
|
|
1417 }
|
|
|
1418 }
|
|
|
1419 if (cmp)
|
|
|
1420 {
|
|
|
1421 /* Compare all lines. If they are equal the lines were inserted
|
|
|
1422 * in some buffers, deleted in others, but not changed. */
|
|
|
1423 for (i = 0; i < DB_COUNT; ++i)
|
|
|
1424 if (i != idx && diffbuf[i] != NULL && dp->df_count[i] != 0)
|
|
|
1425 if (!diff_equal_entry(dp, idx, i))
|
|
|
1426 return -1;
|
|
|
1427 }
|
|
|
1428 /* If there is no buffer with zero lines then there is no difference
|
|
|
1429 * any longer. Happens when making a change (or undo) that removes
|
|
|
1430 * the difference. Can't remove the entry here, we might be halfway
|
|
|
1431 * updating the window. Just report the text as unchanged. Other
|
|
|
1432 * windows might still show the change though. */
|
|
|
1433 if (zero == FALSE)
|
|
|
1434 return 0;
|
|
|
1435 return -2;
|
|
|
1436 }
|
|
|
1437
|
|
|
1438 /* If 'diffopt' doesn't contain "filler", return 0. */
|
|
|
1439 if (!(diff_flags & DIFF_FILLER))
|
|
|
1440 return 0;
|
|
|
1441
|
|
|
1442 /* Insert filler lines above the line just below the change. Will return
|
|
|
1443 * 0 when this buf had the max count. */
|
|
|
1444 maxcount = 0;
|
|
|
1445 for (i = 0; i < DB_COUNT; ++i)
|
|
|
1446 if (diffbuf[i] != NULL && dp->df_count[i] > maxcount)
|
|
|
1447 maxcount = dp->df_count[i];
|
|
|
1448 return maxcount - dp->df_count[idx];
|
|
|
1449 }
|
|
|
1450
|
|
|
1451 /*
|
|
|
1452 * Compare two entries in diff "*dp" and return TRUE if they are equal.
|
|
|
1453 */
|
|
|
1454 static int
|
|
|
1455 diff_equal_entry(dp, idx1, idx2)
|
|
|
1456 diff_T *dp;
|
|
|
1457 int idx1;
|
|
|
1458 int idx2;
|
|
|
1459 {
|
|
|
1460 int i;
|
|
|
1461 char_u *line;
|
|
|
1462 int cmp;
|
|
|
1463
|
|
|
1464 if (dp->df_count[idx1] != dp->df_count[idx2])
|
|
|
1465 return FALSE;
|
|
|
1466 if (diff_check_sanity(dp) == FAIL)
|
|
|
1467 return FALSE;
|
|
|
1468 for (i = 0; i < dp->df_count[idx1]; ++i)
|
|
|
1469 {
|
|
|
1470 line = vim_strsave(ml_get_buf(diffbuf[idx1],
|
|
|
1471 dp->df_lnum[idx1] + i, FALSE));
|
|
|
1472 if (line == NULL)
|
|
|
1473 return FALSE;
|
|
|
1474 cmp = diff_cmp(line, ml_get_buf(diffbuf[idx2],
|
|
|
1475 dp->df_lnum[idx2] + i, FALSE));
|
|
|
1476 vim_free(line);
|
|
|
1477 if (cmp != 0)
|
|
|
1478 return FALSE;
|
|
|
1479 }
|
|
|
1480 return TRUE;
|
|
|
1481 }
|
|
|
1482
|
|
|
1483 /*
|
|
|
1484 * Compare strings "s1" and "s2" according to 'diffopt'.
|
|
|
1485 * Return non-zero when they are different.
|
|
|
1486 */
|
|
|
1487 static int
|
|
|
1488 diff_cmp(s1, s2)
|
|
|
1489 char_u *s1;
|
|
|
1490 char_u *s2;
|
|
|
1491 {
|
|
|
1492 char_u *p1, *p2;
|
|
|
1493 #ifdef FEAT_MBYTE
|
|
|
1494 int l;
|
|
|
1495 #endif
|
|
|
1496
|
|
|
1497 if ((diff_flags & (DIFF_ICASE | DIFF_IWHITE)) == 0)
|
|
|
1498 return STRCMP(s1, s2);
|
|
|
1499 if ((diff_flags & DIFF_ICASE) && !(diff_flags & DIFF_IWHITE))
|
|
|
1500 return MB_STRICMP(s1, s2);
|
|
|
1501
|
|
|
1502 /* Ignore white space changes and possibly ignore case. */
|
|
|
1503 p1 = s1;
|
|
|
1504 p2 = s2;
|
|
|
1505 while (*p1 != NUL && *p2 != NUL)
|
|
|
1506 {
|
|
|
1507 if (vim_iswhite(*p1) && vim_iswhite(*p2))
|
|
|
1508 {
|
|
|
1509 p1 = skipwhite(p1);
|
|
|
1510 p2 = skipwhite(p2);
|
|
|
1511 }
|
|
|
1512 else
|
|
|
1513 {
|
|
|
1514 #ifdef FEAT_MBYTE
|
|
|
1515 l = (*mb_ptr2len_check)(p1);
|
|
|
1516 if (l != (*mb_ptr2len_check)(p2))
|
|
|
1517 break;
|
|
|
1518 if (l > 1)
|
|
|
1519 {
|
|
|
1520 if (STRNCMP(p1, p2, l) != 0
|
|
|
1521 && (!enc_utf8
|
|
|
1522 || !(diff_flags & DIFF_ICASE)
|
|
|
1523 || utf_fold(utf_ptr2char(p1))
|
|
|
1524 != utf_fold(utf_ptr2char(p2))))
|
|
|
1525 break;
|
|
|
1526 p1 += l;
|
|
|
1527 p2 += l;
|
|
|
1528 }
|
|
|
1529 else
|
|
|
1530 #endif
|
|
|
1531 {
|
|
|
1532 if (*p1 != *p2 && (!(diff_flags & DIFF_ICASE)
|
|
|
1533 || TOLOWER_LOC(*p1) != TOLOWER_LOC(*p2)))
|
|
|
1534 break;
|
|
|
1535 ++p1;
|
|
|
1536 ++p2;
|
|
|
1537 }
|
|
|
1538 }
|
|
|
1539 }
|
|
|
1540
|
|
|
1541 /* Ignore trailing white space. */
|
|
|
1542 p1 = skipwhite(p1);
|
|
|
1543 p2 = skipwhite(p2);
|
|
|
1544 if (*p1 != NUL || *p2 != NUL)
|
|
|
1545 return 1;
|
|
|
1546 return 0;
|
|
|
1547 }
|
|
|
1548
|
|
|
1549 /*
|
|
|
1550 * Return the number of filler lines above "lnum".
|
|
|
1551 */
|
|
|
1552 int
|
|
|
1553 diff_check_fill(wp, lnum)
|
|
|
1554 win_T *wp;
|
|
|
1555 linenr_T lnum;
|
|
|
1556 {
|
|
|
1557 int n;
|
|
|
1558
|
|
|
1559 /* be quick when there are no filler lines */
|
|
|
1560 if (!(diff_flags & DIFF_FILLER))
|
|
|
1561 return 0;
|
|
|
1562 n = diff_check(wp, lnum);
|
|
|
1563 if (n <= 0)
|
|
|
1564 return 0;
|
|
|
1565 return n;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568 /*
|
|
|
1569 * Set the topline of "towin" to match the position in "fromwin", so that they
|
|
|
1570 * show the same diff'ed lines.
|
|
|
1571 */
|
|
|
1572 void
|
|
|
1573 diff_set_topline(fromwin, towin)
|
|
|
1574 win_T *fromwin;
|
|
|
1575 win_T *towin;
|
|
|
1576 {
|
|
|
1577 buf_T *buf = fromwin->w_buffer;
|
|
|
1578 linenr_T lnum = fromwin->w_topline;
|
|
|
1579 int idx;
|
|
|
1580 diff_T *dp;
|
|
|
1581 int i;
|
|
|
1582
|
|
|
1583 idx = diff_buf_idx(buf);
|
|
|
1584 if (idx == DB_COUNT)
|
|
|
1585 return; /* safety check */
|
|
|
1586
|
|
|
1587 if (diff_invalid)
|
|
|
1588 ex_diffupdate(NULL); /* update after a big change */
|
|
|
1589
|
|
|
1590 towin->w_topfill = 0;
|
|
|
1591
|
|
|
1592 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
|
1593 for (dp = first_diff; dp != NULL; dp = dp->df_next)
|
|
|
1594 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1595 break;
|
|
|
1596 if (dp == NULL)
|
|
|
1597 {
|
|
|
1598 /* After last change, compute topline relative to end of file; no
|
|
|
1599 * filler lines. */
|
|
|
1600 towin->w_topline = towin->w_buffer->b_ml.ml_line_count
|
|
|
1601 - (buf->b_ml.ml_line_count - lnum);
|
|
|
1602 }
|
|
|
1603 else
|
|
|
1604 {
|
|
|
1605 /* Find index for "towin". */
|
|
|
1606 i = diff_buf_idx(towin->w_buffer);
|
|
|
1607 if (i == DB_COUNT)
|
|
|
1608 return; /* safety check */
|
|
|
1609
|
|
|
1610 towin->w_topline = lnum + (dp->df_lnum[i] - dp->df_lnum[idx]);
|
|
|
1611 if (lnum >= dp->df_lnum[idx])
|
|
|
1612 {
|
|
|
1613 /* Inside a change: compute filler lines. */
|
|
|
1614 if (dp->df_count[i] == dp->df_count[idx])
|
|
|
1615 towin->w_topfill = fromwin->w_topfill;
|
|
|
1616 else if (dp->df_count[i] > dp->df_count[idx])
|
|
|
1617 {
|
|
|
1618 if (lnum == dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1619 towin->w_topline = dp->df_lnum[i] + dp->df_count[i]
|
|
|
1620 - fromwin->w_topfill;
|
|
|
1621 }
|
|
|
1622 else
|
|
|
1623 {
|
|
|
1624 if (towin->w_topline >= dp->df_lnum[i] + dp->df_count[i])
|
|
|
1625 {
|
|
|
1626 if (diff_flags & DIFF_FILLER)
|
|
|
1627 towin->w_topfill = dp->df_lnum[idx]
|
|
|
1628 + dp->df_count[idx] - lnum;
|
|
|
1629 towin->w_topline = dp->df_lnum[i] + dp->df_count[i];
|
|
|
1630 }
|
|
|
1631 }
|
|
|
1632 }
|
|
|
1633 }
|
|
|
1634
|
|
|
1635 /* safety check (if diff info gets outdated strange things may happen) */
|
|
|
1636 towin->w_botfill = FALSE;
|
|
|
1637 if (towin->w_topline > towin->w_buffer->b_ml.ml_line_count)
|
|
|
1638 {
|
|
|
1639 towin->w_topline = towin->w_buffer->b_ml.ml_line_count;
|
|
|
1640 towin->w_botfill = TRUE;
|
|
|
1641 }
|
|
|
1642 if (towin->w_topline < 1)
|
|
|
1643 {
|
|
|
1644 towin->w_topline = 1;
|
|
|
1645 towin->w_topfill = 0;
|
|
|
1646 }
|
|
|
1647
|
|
|
1648 /* When w_topline changes need to recompute w_botline and cursor position */
|
|
|
1649 invalidate_botline_win(towin);
|
|
|
1650 changed_line_abv_curs_win(towin);
|
|
|
1651
|
|
|
1652 check_topfill(towin, FALSE);
|
|
|
1653 #ifdef FEAT_FOLDING
|
|
|
1654 (void)hasFoldingWin(towin, towin->w_topline, &towin->w_topline,
|
|
|
1655 NULL, TRUE, NULL);
|
|
|
1656 #endif
|
|
|
1657 }
|
|
|
1658
|
|
|
1659 /*
|
|
|
1660 * This is called when 'diffopt' is changed.
|
|
|
1661 */
|
|
|
1662 int
|
|
|
1663 diffopt_changed()
|
|
|
1664 {
|
|
|
1665 char_u *p;
|
|
|
1666 int diff_context_new = 6;
|
|
|
1667 int diff_flags_new = 0;
|
|
|
1668
|
|
|
1669 p = p_dip;
|
|
|
1670 while (*p != NUL)
|
|
|
1671 {
|
|
|
1672 if (STRNCMP(p, "filler", 6) == 0)
|
|
|
1673 {
|
|
|
1674 p += 6;
|
|
|
1675 diff_flags_new |= DIFF_FILLER;
|
|
|
1676 }
|
|
|
1677 else if (STRNCMP(p, "context:", 8) == 0 && VIM_ISDIGIT(p[8]))
|
|
|
1678 {
|
|
|
1679 p += 8;
|
|
|
1680 diff_context_new = getdigits(&p);
|
|
|
1681 }
|
|
|
1682 else if (STRNCMP(p, "icase", 5) == 0)
|
|
|
1683 {
|
|
|
1684 p += 5;
|
|
|
1685 diff_flags_new |= DIFF_ICASE;
|
|
|
1686 }
|
|
|
1687 else if (STRNCMP(p, "iwhite", 6) == 0)
|
|
|
1688 {
|
|
|
1689 p += 6;
|
|
|
1690 diff_flags_new |= DIFF_IWHITE;
|
|
|
1691 }
|
|
|
1692 if (*p != ',' && *p != NUL)
|
|
|
1693 return FAIL;
|
|
|
1694 if (*p == ',')
|
|
|
1695 ++p;
|
|
|
1696 }
|
|
|
1697
|
|
|
1698 /* If "icase" or "iwhite" was added or removed, need to update the diff. */
|
|
|
1699 if (diff_flags != diff_flags_new)
|
|
|
1700 diff_invalid = TRUE;
|
|
|
1701
|
|
|
1702 diff_flags = diff_flags_new;
|
|
|
1703 diff_context = diff_context_new;
|
|
|
1704
|
|
|
1705 diff_redraw(TRUE);
|
|
|
1706
|
|
|
1707 /* recompute the scroll binding with the new option value, may
|
|
|
1708 * remove or add filler lines */
|
|
|
1709 check_scrollbind((linenr_T)0, 0L);
|
|
|
1710
|
|
|
1711 return OK;
|
|
|
1712 }
|
|
|
1713
|
|
|
1714 /*
|
|
|
1715 * Find the difference within a changed line.
|
|
|
1716 * Returns TRUE if the line was added, no other buffer has it.
|
|
|
1717 */
|
|
|
1718 int
|
|
|
1719 diff_find_change(wp, lnum, startp, endp)
|
|
|
1720 win_T *wp;
|
|
|
1721 linenr_T lnum;
|
|
|
1722 int *startp; /* first char of the change */
|
|
|
1723 int *endp; /* last char of the change */
|
|
|
1724 {
|
|
|
1725 char_u *line_org;
|
|
|
1726 char_u *line_new;
|
|
|
1727 int i;
|
|
|
1728 int si, ei_org, ei_new;
|
|
|
1729 diff_T *dp;
|
|
|
1730 int idx;
|
|
|
1731 int off;
|
|
|
1732 int added = TRUE;
|
|
|
1733
|
|
|
1734 /* Make a copy of the line, the next ml_get() will invalidate it. */
|
|
|
1735 line_org = vim_strsave(ml_get_buf(wp->w_buffer, lnum, FALSE));
|
|
|
1736 if (line_org == NULL)
|
|
|
1737 return FALSE;
|
|
|
1738
|
|
|
1739 idx = diff_buf_idx(wp->w_buffer);
|
|
|
1740 if (idx == DB_COUNT) /* cannot happen */
|
|
|
1741 return FALSE;
|
|
|
1742
|
|
|
1743 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
|
1744 for (dp = first_diff; dp != NULL; dp = dp->df_next)
|
|
|
1745 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
1746 break;
|
|
|
1747 if (dp == NULL || diff_check_sanity(dp) == FAIL)
|
|
|
1748 return FALSE;
|
|
|
1749
|
|
|
1750 off = lnum - dp->df_lnum[idx];
|
|
|
1751
|
|
|
1752 for (i = 0; i < DB_COUNT; ++i)
|
|
|
1753 if (diffbuf[i] != NULL && i != idx)
|
|
|
1754 {
|
|
|
1755 /* Skip lines that are not in the other change (filler lines). */
|
|
|
1756 if (off >= dp->df_count[i])
|
|
|
1757 continue;
|
|
|
1758 added = FALSE;
|
|
|
1759 line_new = ml_get_buf(diffbuf[i], dp->df_lnum[i] + off, FALSE);
|
|
|
1760
|
|
|
1761 /* Search for start of difference */
|
|
|
1762 for (si = 0; line_org[si] != NUL && line_org[si] == line_new[si]; )
|
|
|
1763 ++si;
|
|
|
1764 #ifdef FEAT_MBYTE
|
|
|
1765 if (has_mbyte)
|
|
|
1766 {
|
|
|
1767 /* Move back to first byte of character in both lines (may
|
|
|
1768 * have "nn^" in line_org and "n^ in line_new). */
|
|
|
1769 si -= (*mb_head_off)(line_org, line_org + si);
|
|
|
1770 si -= (*mb_head_off)(line_new, line_new + si);
|
|
|
1771 }
|
|
|
1772 #endif
|
|
|
1773 if (*startp > si)
|
|
|
1774 *startp = si;
|
|
|
1775
|
|
|
1776 /* Search for end of difference, if any. */
|
|
|
1777 if (line_org[si] != NUL || line_new[si] != NUL)
|
|
|
1778 {
|
|
|
1779 ei_org = (int)STRLEN(line_org);
|
|
|
1780 ei_new = (int)STRLEN(line_new);
|
|
|
1781 while (ei_org >= *startp && ei_new >= *startp
|
|
|
1782 && ei_org >= 0 && ei_new >= 0
|
|
|
1783 && line_org[ei_org] == line_new[ei_new])
|
|
|
1784 {
|
|
|
1785 --ei_org;
|
|
|
1786 --ei_new;
|
|
|
1787 }
|
|
|
1788 if (*endp < ei_org)
|
|
|
1789 *endp = ei_org;
|
|
|
1790 }
|
|
|
1791 }
|
|
|
1792
|
|
|
1793 vim_free(line_org);
|
|
|
1794 return added;
|
|
|
1795 }
|
|
|
1796
|
|
|
1797 #if defined(FEAT_FOLDING) || defined(PROTO)
|
|
|
1798 /*
|
|
|
1799 * Return TRUE if line "lnum" is not close to a diff block, this line should
|
|
|
1800 * be in a fold.
|
|
|
1801 * Return FALSE if there are no diff blocks at all in this window.
|
|
|
1802 */
|
|
|
1803 int
|
|
|
1804 diff_infold(wp, lnum)
|
|
|
1805 win_T *wp;
|
|
|
1806 linenr_T lnum;
|
|
|
1807 {
|
|
|
1808 int i;
|
|
|
1809 int idx = -1;
|
|
|
1810 int other = FALSE;
|
|
|
1811 diff_T *dp;
|
|
|
1812
|
|
|
1813 /* Return if 'diff' isn't set. */
|
|
|
1814 if (!wp->w_p_diff)
|
|
|
1815 return FALSE;
|
|
|
1816
|
|
|
1817 for (i = 0; i < DB_COUNT; ++i)
|
|
|
1818 {
|
|
|
1819 if (diffbuf[i] == wp->w_buffer)
|
|
|
1820 idx = i;
|
|
|
1821 else if (diffbuf[i] != NULL)
|
|
|
1822 other = TRUE;
|
|
|
1823 }
|
|
|
1824
|
|
|
1825 /* return here if there are no diffs in the window */
|
|
|
1826 if (idx == -1 || !other)
|
|
|
1827 return FALSE;
|
|
|
1828
|
|
|
1829 if (diff_invalid)
|
|
|
1830 ex_diffupdate(NULL); /* update after a big change */
|
|
|
1831
|
|
|
1832 /* Return if there are no diff blocks. All lines will be folded. */
|
|
|
1833 if (first_diff == NULL)
|
|
|
1834 return TRUE;
|
|
|
1835
|
|
|
1836 for (dp = first_diff; dp != NULL; dp = dp->df_next)
|
|
|
1837 {
|
|
|
1838 /* If this change is below the line there can't be any further match. */
|
|
|
1839 if (dp->df_lnum[idx] - diff_context > lnum)
|
|
|
1840 break;
|
|
|
1841 /* If this change ends before the line we have a match. */
|
|
|
1842 if (dp->df_lnum[idx] + dp->df_count[idx] + diff_context > lnum)
|
|
|
1843 return FALSE;
|
|
|
1844 }
|
|
|
1845 return TRUE;
|
|
|
1846 }
|
|
|
1847 #endif
|
|
|
1848
|
|
|
1849 /*
|
|
|
1850 * "dp" and "do" commands.
|
|
|
1851 */
|
|
|
1852 void
|
|
|
1853 nv_diffgetput(put)
|
|
|
1854 int put;
|
|
|
1855 {
|
|
|
1856 exarg_T ea;
|
|
|
1857
|
|
|
1858 ea.arg = (char_u *)"";
|
|
|
1859 if (put)
|
|
|
1860 ea.cmdidx = CMD_diffput;
|
|
|
1861 else
|
|
|
1862 ea.cmdidx = CMD_diffget;
|
|
|
1863 ea.addr_count = 0;
|
|
|
1864 ea.line1 = curwin->w_cursor.lnum;
|
|
|
1865 ea.line2 = curwin->w_cursor.lnum;
|
|
|
1866 ex_diffgetput(&ea);
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 /*
|
|
|
1870 * ":diffget"
|
|
|
1871 * ":diffput"
|
|
|
1872 */
|
|
|
1873 void
|
|
|
1874 ex_diffgetput(eap)
|
|
|
1875 exarg_T *eap;
|
|
|
1876 {
|
|
|
1877 linenr_T lnum;
|
|
|
1878 int count;
|
|
|
1879 linenr_T off = 0;
|
|
|
1880 diff_T *dp;
|
|
|
1881 diff_T *dprev;
|
|
|
1882 diff_T *dfree;
|
|
|
1883 int idx_cur;
|
|
|
1884 int idx_other;
|
|
|
1885 int idx_from;
|
|
|
1886 int idx_to;
|
|
|
1887 int i;
|
|
|
1888 int added;
|
|
|
1889 char_u *p;
|
|
|
1890 aco_save_T aco;
|
|
|
1891 buf_T *buf;
|
|
|
1892 int start_skip, end_skip;
|
|
|
1893 int new_count;
|
|
|
1894
|
|
|
1895 /* Find the current buffer in the list of diff buffers. */
|
|
|
1896 idx_cur = diff_buf_idx(curbuf);
|
|
|
1897 if (idx_cur == DB_COUNT)
|
|
|
1898 {
|
|
|
1899 EMSG(_("E99: Current buffer is not in diff mode"));
|
|
|
1900 return;
|
|
|
1901 }
|
|
|
1902
|
|
|
1903 if (*eap->arg == NUL)
|
|
|
1904 {
|
|
|
1905 /* No argument: Find the other buffer in the list of diff buffers. */
|
|
|
1906 for (idx_other = 0; idx_other < DB_COUNT; ++idx_other)
|
|
|
1907 if (diffbuf[idx_other] != curbuf && diffbuf[idx_other] != NULL)
|
|
|
1908 break;
|
|
|
1909 if (idx_other == DB_COUNT)
|
|
|
1910 {
|
|
|
1911 EMSG(_("E100: No other buffer in diff mode"));
|
|
|
1912 return;
|
|
|
1913 }
|
|
|
1914
|
|
|
1915 /* Check that there isn't a third buffer in the list */
|
|
|
1916 for (i = idx_other + 1; i < DB_COUNT; ++i)
|
|
|
1917 if (diffbuf[i] != curbuf && diffbuf[i] != NULL)
|
|
|
1918 {
|
|
|
1919 EMSG(_("E101: More than two buffers in diff mode, don't know which one to use"));
|
|
|
1920 return;
|
|
|
1921 }
|
|
|
1922 }
|
|
|
1923 else
|
|
|
1924 {
|
|
|
1925 /* Buffer number or pattern given. Ignore trailing white space. */
|
|
|
1926 p = eap->arg + STRLEN(eap->arg);
|
|
|
1927 while (p > eap->arg && vim_iswhite(p[-1]))
|
|
|
1928 --p;
|
|
|
1929 for (i = 0; vim_isdigit(eap->arg[i]) && eap->arg + i < p; ++i)
|
|
|
1930 ;
|
|
|
1931 if (eap->arg + i == p) /* digits only */
|
|
|
1932 i = atol((char *)eap->arg);
|
|
|
1933 else
|
|
|
1934 {
|
|
|
1935 i = buflist_findpat(eap->arg, p, FALSE, TRUE);
|
|
|
1936 if (i < 0)
|
|
|
1937 return; /* error message already given */
|
|
|
1938 }
|
|
|
1939 buf = buflist_findnr(i);
|
|
|
1940 if (buf == NULL)
|
|
|
1941 {
|
|
|
1942 EMSG2(_("E102: Can't find buffer \"%s\""), eap->arg);
|
|
|
1943 return;
|
|
|
1944 }
|
|
|
1945 idx_other = diff_buf_idx(buf);
|
|
|
1946 if (idx_other == DB_COUNT)
|
|
|
1947 {
|
|
|
1948 EMSG2(_("E103: Buffer \"%s\" is not in diff mode"), eap->arg);
|
|
|
1949 return;
|
|
|
1950 }
|
|
|
1951 }
|
|
|
1952
|
|
|
1953 diff_busy = TRUE;
|
|
|
1954
|
|
|
1955 /* When no range given include the line above or below the cursor. */
|
|
|
1956 if (eap->addr_count == 0)
|
|
|
1957 {
|
|
|
1958 /* Make it possible that ":diffget" on the last line gets line below
|
|
|
1959 * the cursor line when there is no difference above the cursor. */
|
|
|
1960 if (eap->cmdidx == CMD_diffget
|
|
|
1961 && eap->line1 == curbuf->b_ml.ml_line_count
|
|
|
1962 && diff_check(curwin, eap->line1) == 0
|
|
|
1963 && (eap->line1 == 1 || diff_check(curwin, eap->line1 - 1) == 0))
|
|
|
1964 ++eap->line2;
|
|
|
1965 else if (eap->line1 > 0)
|
|
|
1966 --eap->line1;
|
|
|
1967 }
|
|
|
1968
|
|
|
1969 if (eap->cmdidx == CMD_diffget)
|
|
|
1970 {
|
|
|
1971 idx_from = idx_other;
|
|
|
1972 idx_to = idx_cur;
|
|
|
1973 }
|
|
|
1974 else
|
|
|
1975 {
|
|
|
1976 idx_from = idx_cur;
|
|
|
1977 idx_to = idx_other;
|
|
|
1978 /* Need to make the other buffer the current buffer to be able to make
|
|
|
1979 * changes in it. */
|
|
|
1980 /* set curwin/curbuf to buf and save a few things */
|
|
|
1981 aucmd_prepbuf(&aco, diffbuf[idx_other]);
|
|
|
1982 }
|
|
|
1983
|
|
|
1984 dprev = NULL;
|
|
|
1985 for (dp = first_diff; dp != NULL; )
|
|
|
1986 {
|
|
|
1987 if (dp->df_lnum[idx_cur] > eap->line2 + off)
|
|
|
1988 break; /* past the range that was specified */
|
|
|
1989
|
|
|
1990 dfree = NULL;
|
|
|
1991 lnum = dp->df_lnum[idx_to];
|
|
|
1992 count = dp->df_count[idx_to];
|
|
|
1993 if (dp->df_lnum[idx_cur] + dp->df_count[idx_cur] > eap->line1 + off
|
|
|
1994 && u_save(lnum - 1, lnum + count) != FAIL)
|
|
|
1995 {
|
|
|
1996 /* Inside the specified range and saving for undo worked. */
|
|
|
1997 start_skip = 0;
|
|
|
1998 end_skip = 0;
|
|
|
1999 if (eap->addr_count > 0)
|
|
|
2000 {
|
|
|
2001 /* A range was specified: check if lines need to be skipped. */
|
|
|
2002 start_skip = eap->line1 + off - dp->df_lnum[idx_cur];
|
|
|
2003 if (start_skip > 0)
|
|
|
2004 {
|
|
|
2005 /* range starts below start of current diff block */
|
|
|
2006 if (start_skip > count)
|
|
|
2007 {
|
|
|
2008 lnum += count;
|
|
|
2009 count = 0;
|
|
|
2010 }
|
|
|
2011 else
|
|
|
2012 {
|
|
|
2013 count -= start_skip;
|
|
|
2014 lnum += start_skip;
|
|
|
2015 }
|
|
|
2016 }
|
|
|
2017 else
|
|
|
2018 start_skip = 0;
|
|
|
2019
|
|
|
2020 end_skip = dp->df_lnum[idx_cur] + dp->df_count[idx_cur] - 1
|
|
|
2021 - (eap->line2 + off);
|
|
|
2022 if (end_skip > 0)
|
|
|
2023 {
|
|
|
2024 /* range ends above end of current/from diff block */
|
|
|
2025 if (idx_cur == idx_from) /* :diffput */
|
|
|
2026 {
|
|
|
2027 i = dp->df_count[idx_cur] - start_skip - end_skip;
|
|
|
2028 if (count > i)
|
|
|
2029 count = i;
|
|
|
2030 }
|
|
|
2031 else /* :diffget */
|
|
|
2032 {
|
|
|
2033 count -= end_skip;
|
|
|
2034 end_skip = dp->df_count[idx_from] - start_skip - count;
|
|
|
2035 if (end_skip < 0)
|
|
|
2036 end_skip = 0;
|
|
|
2037 }
|
|
|
2038 }
|
|
|
2039 else
|
|
|
2040 end_skip = 0;
|
|
|
2041 }
|
|
|
2042
|
|
|
2043 added = 0;
|
|
|
2044 for (i = 0; i < count; ++i)
|
|
|
2045 {
|
|
|
2046 ml_delete(lnum, FALSE);
|
|
|
2047 --added;
|
|
|
2048 }
|
|
|
2049 for (i = 0; i < dp->df_count[idx_from] - start_skip - end_skip; ++i)
|
|
|
2050 {
|
|
|
2051 linenr_T nr;
|
|
|
2052
|
|
|
2053 nr = dp->df_lnum[idx_from] + start_skip + i;
|
|
|
2054 if (nr > diffbuf[idx_from]->b_ml.ml_line_count)
|
|
|
2055 break;
|
|
|
2056 p = vim_strsave(ml_get_buf(diffbuf[idx_from], nr, FALSE));
|
|
|
2057 if (p != NULL)
|
|
|
2058 {
|
|
|
2059 ml_append(lnum + i - 1, p, 0, FALSE);
|
|
|
2060 vim_free(p);
|
|
|
2061 ++added;
|
|
|
2062 }
|
|
|
2063 }
|
|
|
2064 new_count = dp->df_count[idx_to] + added;
|
|
|
2065 dp->df_count[idx_to] = new_count;
|
|
|
2066
|
|
|
2067 if (start_skip == 0 && end_skip == 0)
|
|
|
2068 {
|
|
|
2069 /* Check if there are any other buffers and if the diff is
|
|
|
2070 * equal in them. */
|
|
|
2071 for (i = 0; i < DB_COUNT; ++i)
|
|
|
2072 if (diffbuf[i] != NULL && i != idx_from && i != idx_to
|
|
|
2073 && !diff_equal_entry(dp, idx_from, i))
|
|
|
2074 break;
|
|
|
2075 if (i == DB_COUNT)
|
|
|
2076 {
|
|
|
2077 /* delete the diff entry, the buffers are now equal here */
|
|
|
2078 dfree = dp;
|
|
|
2079 dp = dp->df_next;
|
|
|
2080 if (dprev == NULL)
|
|
|
2081 first_diff = dp;
|
|
|
2082 else
|
|
|
2083 dprev->df_next = dp;
|
|
|
2084 }
|
|
|
2085 }
|
|
|
2086
|
|
|
2087 /* Adjust marks. This will change the following entries! */
|
|
|
2088 if (added != 0)
|
|
|
2089 {
|
|
|
2090 mark_adjust(lnum, lnum + count - 1, (long)MAXLNUM, (long)added);
|
|
|
2091 if (curwin->w_cursor.lnum >= lnum)
|
|
|
2092 {
|
|
|
2093 /* Adjust the cursor position if it's in/after the changed
|
|
|
2094 * lines. */
|
|
|
2095 if (curwin->w_cursor.lnum >= lnum + count)
|
|
|
2096 curwin->w_cursor.lnum += added;
|
|
|
2097 else if (added < 0)
|
|
|
2098 curwin->w_cursor.lnum = lnum;
|
|
|
2099 }
|
|
|
2100 }
|
|
|
2101 changed_lines(lnum, 0, lnum + count, (long)added);
|
|
|
2102
|
|
|
2103 if (dfree != NULL)
|
|
|
2104 {
|
|
|
2105 /* Diff is deleted, update folds in other windows. */
|
|
|
2106 #ifdef FEAT_FOLDING
|
|
|
2107 diff_fold_update(dfree, idx_to);
|
|
|
2108 #endif
|
|
|
2109 vim_free(dfree);
|
|
|
2110 }
|
|
|
2111 else
|
|
|
2112 /* mark_adjust() may have changed the count in a wrong way */
|
|
|
2113 dp->df_count[idx_to] = new_count;
|
|
|
2114
|
|
|
2115 /* When changing the current buffer, keep track of line numbers */
|
|
|
2116 if (idx_cur == idx_to)
|
|
|
2117 off += added;
|
|
|
2118 }
|
|
|
2119
|
|
|
2120 /* If before the range or not deleted, go to next diff. */
|
|
|
2121 if (dfree == NULL)
|
|
|
2122 {
|
|
|
2123 dprev = dp;
|
|
|
2124 dp = dp->df_next;
|
|
|
2125 }
|
|
|
2126 }
|
|
|
2127
|
|
|
2128 /* restore curwin/curbuf and a few other things */
|
|
|
2129 if (idx_other == idx_to)
|
|
|
2130 {
|
|
|
2131 /* Syncing undo only works for the current buffer, but we change
|
|
|
2132 * another buffer. Sync undo if the command was typed. This isn't
|
|
|
2133 * 100% right when ":diffput" is used in a function or mapping. */
|
|
|
2134 if (KeyTyped)
|
|
|
2135 u_sync();
|
|
|
2136 aucmd_restbuf(&aco);
|
|
|
2137 }
|
|
|
2138
|
|
|
2139 diff_busy = FALSE;
|
|
|
2140
|
|
|
2141 /* Check that the cursor is on a valid character and update it's position.
|
|
|
2142 * When there were filler lines the topline has become invalid. */
|
|
|
2143 check_cursor();
|
|
|
2144 changed_line_abv_curs();
|
|
|
2145
|
|
|
2146 /* Also need to redraw the other buffers. */
|
|
|
2147 diff_redraw(FALSE);
|
|
|
2148 }
|
|
|
2149
|
|
|
2150 #ifdef FEAT_FOLDING
|
|
|
2151 /*
|
|
|
2152 * Update folds for all diff buffers for entry "dp".
|
|
|
2153 * Skip buffer with index "skip_idx".
|
|
|
2154 * When there are no diffs, all folds are removed.
|
|
|
2155 */
|
|
|
2156 static void
|
|
|
2157 diff_fold_update(dp, skip_idx)
|
|
|
2158 diff_T *dp;
|
|
|
2159 int skip_idx;
|
|
|
2160 {
|
|
|
2161 int i;
|
|
|
2162 win_T *wp;
|
|
|
2163
|
|
|
2164 for (wp = firstwin; wp != NULL; wp = wp->w_next)
|
|
|
2165 for (i = 0; i < DB_COUNT; ++i)
|
|
|
2166 if (diffbuf[i] == wp->w_buffer && i != skip_idx)
|
|
|
2167 foldUpdate(wp, dp->df_lnum[i],
|
|
|
2168 dp->df_lnum[i] + dp->df_count[i]);
|
|
|
2169 }
|
|
|
2170 #endif
|
|
|
2171
|
|
|
2172 /*
|
|
|
2173 * Return TRUE if buffer "buf" is in diff-mode.
|
|
|
2174 */
|
|
|
2175 int
|
|
|
2176 diff_mode_buf(buf)
|
|
|
2177 buf_T *buf;
|
|
|
2178 {
|
|
|
2179 return diff_buf_idx(buf) != DB_COUNT;
|
|
|
2180 }
|
|
|
2181
|
|
|
2182 /*
|
|
|
2183 * Move "count" times in direction "dir" to the next diff block.
|
|
|
2184 * Return FAIL if there isn't such a diff block.
|
|
|
2185 */
|
|
|
2186 int
|
|
|
2187 diff_move_to(dir, count)
|
|
|
2188 int dir;
|
|
|
2189 long count;
|
|
|
2190 {
|
|
|
2191 int idx;
|
|
|
2192 linenr_T lnum = curwin->w_cursor.lnum;
|
|
|
2193 diff_T *dp;
|
|
|
2194
|
|
|
2195 idx = diff_buf_idx(curbuf);
|
|
|
2196 if (idx == DB_COUNT || first_diff == NULL)
|
|
|
2197 return FAIL;
|
|
|
2198
|
|
|
2199 if (diff_invalid)
|
|
|
2200 ex_diffupdate(NULL); /* update after a big change */
|
|
|
2201
|
|
|
2202 if (first_diff == NULL) /* no diffs today */
|
|
|
2203 return FAIL;
|
|
|
2204
|
|
|
2205 while (--count >= 0)
|
|
|
2206 {
|
|
|
2207 /* Check if already before first diff. */
|
|
|
2208 if (dir == BACKWARD && lnum <= first_diff->df_lnum[idx])
|
|
|
2209 break;
|
|
|
2210
|
|
|
2211 for (dp = first_diff; ; dp = dp->df_next)
|
|
|
2212 {
|
|
|
2213 if (dp == NULL)
|
|
|
2214 break;
|
|
|
2215 if ((dir == FORWARD && lnum < dp->df_lnum[idx])
|
|
|
2216 || (dir == BACKWARD
|
|
|
2217 && (dp->df_next == NULL
|
|
|
2218 || lnum <= dp->df_next->df_lnum[idx])))
|
|
|
2219 {
|
|
|
2220 lnum = dp->df_lnum[idx];
|
|
|
2221 break;
|
|
|
2222 }
|
|
|
2223 }
|
|
|
2224 }
|
|
|
2225
|
|
|
2226 /* don't end up past the end of the file */
|
|
|
2227 if (lnum > curbuf->b_ml.ml_line_count)
|
|
|
2228 lnum = curbuf->b_ml.ml_line_count;
|
|
|
2229
|
|
|
2230 /* When the cursor didn't move at all we fail. */
|
|
|
2231 if (lnum == curwin->w_cursor.lnum)
|
|
|
2232 return FAIL;
|
|
|
2233
|
|
|
2234 setpcmark();
|
|
|
2235 curwin->w_cursor.lnum = lnum;
|
|
|
2236 curwin->w_cursor.col = 0;
|
|
|
2237
|
|
|
2238 return OK;
|
|
|
2239 }
|
|
|
2240
|
|
|
2241 #if defined(FEAT_FOLDING) || defined(PROTO)
|
|
|
2242 /*
|
|
|
2243 * For line "lnum" in the current window find the equivalent lnum in window
|
|
|
2244 * "wp", compensating for inserted/deleted lines.
|
|
|
2245 */
|
|
|
2246 linenr_T
|
|
|
2247 diff_lnum_win(lnum, wp)
|
|
|
2248 linenr_T lnum;
|
|
|
2249 win_T *wp;
|
|
|
2250 {
|
|
|
2251 diff_T *dp;
|
|
|
2252 int idx;
|
|
|
2253 int i;
|
|
|
2254 linenr_T n;
|
|
|
2255
|
|
|
2256 idx = diff_buf_idx(curbuf);
|
|
|
2257 if (idx == DB_COUNT) /* safety check */
|
|
|
2258 return (linenr_T)0;
|
|
|
2259
|
|
|
2260 if (diff_invalid)
|
|
|
2261 ex_diffupdate(NULL); /* update after a big change */
|
|
|
2262
|
|
|
2263 /* search for a change that includes "lnum" in the list of diffblocks. */
|
|
|
2264 for (dp = first_diff; dp != NULL; dp = dp->df_next)
|
|
|
2265 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
|
|
|
2266 break;
|
|
|
2267
|
|
|
2268 /* When after the last change, compute relative to the last line number. */
|
|
|
2269 if (dp == NULL)
|
|
|
2270 return wp->w_buffer->b_ml.ml_line_count
|
|
|
2271 - (curbuf->b_ml.ml_line_count - lnum);
|
|
|
2272
|
|
|
2273 /* Find index for "wp". */
|
|
|
2274 i = diff_buf_idx(wp->w_buffer);
|
|
|
2275 if (i == DB_COUNT) /* safety check */
|
|
|
2276 return (linenr_T)0;
|
|
|
2277
|
|
|
2278 n = lnum + (dp->df_lnum[i] - dp->df_lnum[idx]);
|
|
|
2279 if (n > dp->df_lnum[i] + dp->df_count[i])
|
|
|
2280 n = dp->df_lnum[i] + dp->df_count[i];
|
|
|
2281 return n;
|
|
|
2282 }
|
|
|
2283 #endif
|
|
|
2284
|
|
|
2285 #endif /* FEAT_DIFF */
|
