Mercurial > vim
annotate src/diff.c @ 14776:09c1f241e2f7 v8.1.0400
patch 8.1.0400: using freed memory with :diffget
commit https://github.com/vim/vim/commit/d2b58c0a2c665075a8cfef57db6e1b37d4523e02
Author: Bram Moolenaar <Bram@vim.org>
Date: Sun Sep 16 18:10:48 2018 +0200
patch 8.1.0400: using freed memory with :diffget
Problem: Using freed memory with :diffget.
Solution: Skip ex_diffupdate() while updating diffs. (closes https://github.com/vim/vim/issues/3442)
author | Christian Brabandt <cb@256bit.org> |
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date | Sun, 16 Sep 2018 18:15:04 +0200 |
parents | 27055ad9276b |
children | 552523e44923 |
rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
7 | 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 /* | |
1788 | 11 * diff.c: code for diff'ing two, three or four buffers. |
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12 * |
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13 * There are three ways to diff: |
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14 * - Shell out to an external diff program, using files. |
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15 * - Use the compiled-in xdiff library. |
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16 * - Let 'diffexpr' do the work, using files. |
7 | 17 */ |
18 | |
19 #include "vim.h" | |
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20 #include "xdiff/xdiff.h" |
7 | 21 |
22 #if defined(FEAT_DIFF) || defined(PROTO) | |
23 | |
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24 static int diff_busy = FALSE; // using diff structs, don't change them |
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25 static int diff_need_update = FALSE; // ex_diffupdate needs to be called |
7 | 26 |
27 /* flags obtained from the 'diffopt' option */ | |
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28 #define DIFF_FILLER 0x001 // display filler lines |
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29 #define DIFF_IBLANK 0x002 // ignore empty lines |
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30 #define DIFF_ICASE 0x004 // ignore case |
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31 #define DIFF_IWHITE 0x008 // ignore change in white space |
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32 #define DIFF_IWHITEALL 0x010 // ignore all white space changes |
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33 #define DIFF_IWHITEEOL 0x020 // ignore change in white space at EOL |
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34 #define DIFF_HORIZONTAL 0x040 // horizontal splits |
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35 #define DIFF_VERTICAL 0x080 // vertical splits |
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36 #define DIFF_HIDDEN_OFF 0x100 // diffoff when hidden |
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37 #define DIFF_INTERNAL 0x200 // use internal xdiff algorithm |
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38 #define ALL_WHITE_DIFF (DIFF_IWHITE | DIFF_IWHITEALL | DIFF_IWHITEEOL) |
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39 static int diff_flags = DIFF_INTERNAL | DIFF_FILLER; |
7 | 40 |
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41 static long diff_algorithm = 0; |
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42 |
7 | 43 #define LBUFLEN 50 /* length of line in diff file */ |
44 | |
45 static int diff_a_works = MAYBE; /* TRUE when "diff -a" works, FALSE when it | |
46 doesn't work, MAYBE when not checked yet */ | |
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47 #if defined(MSWIN) |
7 | 48 static int diff_bin_works = MAYBE; /* TRUE when "diff --binary" works, FALSE |
49 when it doesn't work, MAYBE when not | |
50 checked yet */ | |
51 #endif | |
52 | |
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53 // used for diff input |
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54 typedef struct { |
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55 char_u *din_fname; // used for external diff |
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56 mmfile_t din_mmfile; // used for internal diff |
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57 } diffin_T; |
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58 |
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59 // used for diff result |
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60 typedef struct { |
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61 char_u *dout_fname; // used for external diff |
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62 garray_T dout_ga; // used for internal diff |
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63 } diffout_T; |
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64 |
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65 // two diff inputs and one result |
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66 typedef struct { |
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67 diffin_T dio_orig; // original file input |
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68 diffin_T dio_new; // new file input |
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69 diffout_T dio_diff; // diff result |
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70 int dio_internal; // using internal diff |
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71 } diffio_T; |
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72 |
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73 static int diff_buf_idx(buf_T *buf); |
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74 static int diff_buf_idx_tp(buf_T *buf, tabpage_T *tp); |
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75 static void diff_mark_adjust_tp(tabpage_T *tp, int idx, linenr_T line1, linenr_T line2, long amount, long amount_after); |
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76 static void diff_check_unchanged(tabpage_T *tp, diff_T *dp); |
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77 static int diff_check_sanity(tabpage_T *tp, diff_T *dp); |
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78 static void diff_redraw(int dofold); |
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79 static int check_external_diff(diffio_T *diffio); |
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80 static int diff_file(diffio_T *diffio); |
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81 static int diff_equal_entry(diff_T *dp, int idx1, int idx2); |
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82 static int diff_cmp(char_u *s1, char_u *s2); |
7 | 83 #ifdef FEAT_FOLDING |
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84 static void diff_fold_update(diff_T *dp, int skip_idx); |
7 | 85 #endif |
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86 static void diff_read(int idx_orig, int idx_new, diffout_T *fname); |
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87 static void diff_copy_entry(diff_T *dprev, diff_T *dp, int idx_orig, int idx_new); |
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88 static diff_T *diff_alloc_new(tabpage_T *tp, diff_T *dprev, diff_T *dp); |
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89 static int parse_diff_ed(char_u *line, linenr_T *lnum_orig, long *count_orig, linenr_T *lnum_new, long *count_new); |
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90 static int parse_diff_unified(char_u *line, linenr_T *lnum_orig, long *count_orig, linenr_T *lnum_new, long *count_new); |
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91 static int xdiff_out(void *priv, mmbuffer_t *mb, int nbuf); |
7 | 92 |
93 #ifndef USE_CR | |
94 # define tag_fgets vim_fgets | |
95 #endif | |
96 | |
97 /* | |
98 * Called when deleting or unloading a buffer: No longer make a diff with it. | |
99 */ | |
100 void | |
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101 diff_buf_delete(buf_T *buf) |
7 | 102 { |
103 int i; | |
672 | 104 tabpage_T *tp; |
7 | 105 |
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106 FOR_ALL_TABPAGES(tp) |
7 | 107 { |
672 | 108 i = diff_buf_idx_tp(buf, tp); |
109 if (i != DB_COUNT) | |
110 { | |
111 tp->tp_diffbuf[i] = NULL; | |
112 tp->tp_diff_invalid = TRUE; | |
1761 | 113 if (tp == curtab) |
114 diff_redraw(TRUE); | |
672 | 115 } |
7 | 116 } |
117 } | |
118 | |
119 /* | |
16 | 120 * Check if the current buffer should be added to or removed from the list of |
121 * diff buffers. | |
122 */ | |
123 void | |
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124 diff_buf_adjust(win_T *win) |
16 | 125 { |
126 win_T *wp; | |
672 | 127 int i; |
16 | 128 |
129 if (!win->w_p_diff) | |
130 { | |
131 /* When there is no window showing a diff for this buffer, remove | |
132 * it from the diffs. */ | |
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133 FOR_ALL_WINDOWS(wp) |
16 | 134 if (wp->w_buffer == win->w_buffer && wp->w_p_diff) |
135 break; | |
136 if (wp == NULL) | |
672 | 137 { |
138 i = diff_buf_idx(win->w_buffer); | |
139 if (i != DB_COUNT) | |
140 { | |
141 curtab->tp_diffbuf[i] = NULL; | |
142 curtab->tp_diff_invalid = TRUE; | |
1761 | 143 diff_redraw(TRUE); |
672 | 144 } |
145 } | |
16 | 146 } |
147 else | |
148 diff_buf_add(win->w_buffer); | |
149 } | |
150 | |
151 /* | |
7 | 152 * Add a buffer to make diffs for. |
672 | 153 * Call this when a new buffer is being edited in the current window where |
154 * 'diff' is set. | |
1788 | 155 * Marks the current buffer as being part of the diff and requiring updating. |
672 | 156 * This must be done before any autocmd, because a command may use info |
157 * about the screen contents. | |
7 | 158 */ |
159 void | |
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160 diff_buf_add(buf_T *buf) |
7 | 161 { |
162 int i; | |
163 | |
164 if (diff_buf_idx(buf) != DB_COUNT) | |
165 return; /* It's already there. */ | |
166 | |
167 for (i = 0; i < DB_COUNT; ++i) | |
672 | 168 if (curtab->tp_diffbuf[i] == NULL) |
7 | 169 { |
672 | 170 curtab->tp_diffbuf[i] = buf; |
171 curtab->tp_diff_invalid = TRUE; | |
1761 | 172 diff_redraw(TRUE); |
7 | 173 return; |
174 } | |
175 | |
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176 EMSGN(_("E96: Cannot diff more than %ld buffers"), DB_COUNT); |
7 | 177 } |
178 | |
179 /* | |
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180 * Remove all buffers to make diffs for. |
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181 */ |
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182 static void |
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183 diff_buf_clear(void) |
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184 { |
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185 int i; |
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186 |
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187 for (i = 0; i < DB_COUNT; ++i) |
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188 if (curtab->tp_diffbuf[i] != NULL) |
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189 { |
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190 curtab->tp_diffbuf[i] = NULL; |
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191 curtab->tp_diff_invalid = TRUE; |
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192 diff_redraw(TRUE); |
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193 } |
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194 } |
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195 |
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196 /* |
672 | 197 * Find buffer "buf" in the list of diff buffers for the current tab page. |
7 | 198 * Return its index or DB_COUNT if not found. |
199 */ | |
200 static int | |
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201 diff_buf_idx(buf_T *buf) |
7 | 202 { |
203 int idx; | |
204 | |
205 for (idx = 0; idx < DB_COUNT; ++idx) | |
672 | 206 if (curtab->tp_diffbuf[idx] == buf) |
207 break; | |
208 return idx; | |
209 } | |
210 | |
211 /* | |
212 * Find buffer "buf" in the list of diff buffers for tab page "tp". | |
213 * Return its index or DB_COUNT if not found. | |
214 */ | |
215 static int | |
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216 diff_buf_idx_tp(buf_T *buf, tabpage_T *tp) |
672 | 217 { |
218 int idx; | |
219 | |
220 for (idx = 0; idx < DB_COUNT; ++idx) | |
221 if (tp->tp_diffbuf[idx] == buf) | |
7 | 222 break; |
223 return idx; | |
224 } | |
225 | |
226 /* | |
672 | 227 * Mark the diff info involving buffer "buf" as invalid, it will be updated |
228 * when info is requested. | |
7 | 229 */ |
230 void | |
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231 diff_invalidate(buf_T *buf) |
7 | 232 { |
672 | 233 tabpage_T *tp; |
234 int i; | |
235 | |
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236 FOR_ALL_TABPAGES(tp) |
7 | 237 { |
672 | 238 i = diff_buf_idx_tp(buf, tp); |
239 if (i != DB_COUNT) | |
240 { | |
241 tp->tp_diff_invalid = TRUE; | |
242 if (tp == curtab) | |
243 diff_redraw(TRUE); | |
244 } | |
7 | 245 } |
246 } | |
247 | |
248 /* | |
672 | 249 * Called by mark_adjust(): update line numbers in "curbuf". |
7 | 250 */ |
251 void | |
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252 diff_mark_adjust( |
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253 linenr_T line1, |
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254 linenr_T line2, |
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255 long amount, |
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256 long amount_after) |
7 | 257 { |
672 | 258 int idx; |
259 tabpage_T *tp; | |
260 | |
261 /* Handle all tab pages that use the current buffer in a diff. */ | |
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262 FOR_ALL_TABPAGES(tp) |
672 | 263 { |
264 idx = diff_buf_idx_tp(curbuf, tp); | |
265 if (idx != DB_COUNT) | |
266 diff_mark_adjust_tp(tp, idx, line1, line2, amount, amount_after); | |
267 } | |
268 } | |
269 | |
270 /* | |
271 * Update line numbers in tab page "tp" for "curbuf" with index "idx". | |
272 * This attempts to update the changes as much as possible: | |
273 * When inserting/deleting lines outside of existing change blocks, create a | |
274 * new change block and update the line numbers in following blocks. | |
275 * When inserting/deleting lines in existing change blocks, update them. | |
276 */ | |
277 static void | |
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278 diff_mark_adjust_tp( |
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279 tabpage_T *tp, |
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280 int idx, |
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281 linenr_T line1, |
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282 linenr_T line2, |
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283 long amount, |
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284 long amount_after) |
672 | 285 { |
7 | 286 diff_T *dp; |
287 diff_T *dprev; | |
288 diff_T *dnext; | |
289 int i; | |
290 int inserted, deleted; | |
291 int n, off; | |
292 linenr_T last; | |
293 linenr_T lnum_deleted = line1; /* lnum of remaining deletion */ | |
294 int check_unchanged; | |
295 | |
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296 if (diff_internal()) |
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297 { |
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298 // Will udpate diffs before redrawing. Set _invalid to update the |
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299 // diffs themselves, set _update to also update folds properly just |
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300 // before redrawing. |
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301 tp->tp_diff_invalid = TRUE; |
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302 tp->tp_diff_update = TRUE; |
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303 return; |
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304 } |
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305 |
7 | 306 if (line2 == MAXLNUM) |
307 { | |
308 /* mark_adjust(99, MAXLNUM, 9, 0): insert lines */ | |
309 inserted = amount; | |
310 deleted = 0; | |
311 } | |
312 else if (amount_after > 0) | |
313 { | |
314 /* mark_adjust(99, 98, MAXLNUM, 9): a change that inserts lines*/ | |
315 inserted = amount_after; | |
316 deleted = 0; | |
317 } | |
318 else | |
319 { | |
320 /* mark_adjust(98, 99, MAXLNUM, -2): delete lines */ | |
321 inserted = 0; | |
322 deleted = -amount_after; | |
323 } | |
324 | |
325 dprev = NULL; | |
672 | 326 dp = tp->tp_first_diff; |
7 | 327 for (;;) |
328 { | |
329 /* If the change is after the previous diff block and before the next | |
330 * diff block, thus not touching an existing change, create a new diff | |
331 * block. Don't do this when ex_diffgetput() is busy. */ | |
332 if ((dp == NULL || dp->df_lnum[idx] - 1 > line2 | |
333 || (line2 == MAXLNUM && dp->df_lnum[idx] > line1)) | |
334 && (dprev == NULL | |
335 || dprev->df_lnum[idx] + dprev->df_count[idx] < line1) | |
336 && !diff_busy) | |
337 { | |
672 | 338 dnext = diff_alloc_new(tp, dprev, dp); |
7 | 339 if (dnext == NULL) |
340 return; | |
341 | |
342 dnext->df_lnum[idx] = line1; | |
343 dnext->df_count[idx] = inserted; | |
344 for (i = 0; i < DB_COUNT; ++i) | |
672 | 345 if (tp->tp_diffbuf[i] != NULL && i != idx) |
7 | 346 { |
347 if (dprev == NULL) | |
348 dnext->df_lnum[i] = line1; | |
349 else | |
350 dnext->df_lnum[i] = line1 | |
351 + (dprev->df_lnum[i] + dprev->df_count[i]) | |
352 - (dprev->df_lnum[idx] + dprev->df_count[idx]); | |
353 dnext->df_count[i] = deleted; | |
354 } | |
355 } | |
356 | |
357 /* if at end of the list, quit */ | |
358 if (dp == NULL) | |
359 break; | |
360 | |
361 /* | |
362 * Check for these situations: | |
363 * 1 2 3 | |
364 * 1 2 3 | |
365 * line1 2 3 4 5 | |
366 * 2 3 4 5 | |
367 * 2 3 4 5 | |
368 * line2 2 3 4 5 | |
369 * 3 5 6 | |
370 * 3 5 6 | |
371 */ | |
372 /* compute last line of this change */ | |
373 last = dp->df_lnum[idx] + dp->df_count[idx] - 1; | |
374 | |
375 /* 1. change completely above line1: nothing to do */ | |
376 if (last >= line1 - 1) | |
377 { | |
378 /* 6. change below line2: only adjust for amount_after; also when | |
379 * "deleted" became zero when deleted all lines between two diffs */ | |
380 if (dp->df_lnum[idx] - (deleted + inserted != 0) > line2) | |
381 { | |
382 if (amount_after == 0) | |
383 break; /* nothing left to change */ | |
384 dp->df_lnum[idx] += amount_after; | |
385 } | |
386 else | |
387 { | |
388 check_unchanged = FALSE; | |
389 | |
390 /* 2. 3. 4. 5.: inserted/deleted lines touching this diff. */ | |
391 if (deleted > 0) | |
392 { | |
393 if (dp->df_lnum[idx] >= line1) | |
394 { | |
395 off = dp->df_lnum[idx] - lnum_deleted; | |
396 if (last <= line2) | |
397 { | |
398 /* 4. delete all lines of diff */ | |
399 if (dp->df_next != NULL | |
400 && dp->df_next->df_lnum[idx] - 1 <= line2) | |
401 { | |
402 /* delete continues in next diff, only do | |
403 * lines until that one */ | |
404 n = dp->df_next->df_lnum[idx] - lnum_deleted; | |
405 deleted -= n; | |
406 n -= dp->df_count[idx]; | |
407 lnum_deleted = dp->df_next->df_lnum[idx]; | |
408 } | |
409 else | |
410 n = deleted - dp->df_count[idx]; | |
411 dp->df_count[idx] = 0; | |
412 } | |
413 else | |
414 { | |
415 /* 5. delete lines at or just before top of diff */ | |
416 n = off; | |
417 dp->df_count[idx] -= line2 - dp->df_lnum[idx] + 1; | |
418 check_unchanged = TRUE; | |
419 } | |
420 dp->df_lnum[idx] = line1; | |
421 } | |
422 else | |
423 { | |
424 off = 0; | |
425 if (last < line2) | |
426 { | |
427 /* 2. delete at end of of diff */ | |
428 dp->df_count[idx] -= last - lnum_deleted + 1; | |
429 if (dp->df_next != NULL | |
430 && dp->df_next->df_lnum[idx] - 1 <= line2) | |
431 { | |
432 /* delete continues in next diff, only do | |
433 * lines until that one */ | |
434 n = dp->df_next->df_lnum[idx] - 1 - last; | |
435 deleted -= dp->df_next->df_lnum[idx] | |
436 - lnum_deleted; | |
437 lnum_deleted = dp->df_next->df_lnum[idx]; | |
438 } | |
439 else | |
440 n = line2 - last; | |
441 check_unchanged = TRUE; | |
442 } | |
443 else | |
444 { | |
445 /* 3. delete lines inside the diff */ | |
446 n = 0; | |
447 dp->df_count[idx] -= deleted; | |
448 } | |
449 } | |
450 | |
451 for (i = 0; i < DB_COUNT; ++i) | |
672 | 452 if (tp->tp_diffbuf[i] != NULL && i != idx) |
7 | 453 { |
454 dp->df_lnum[i] -= off; | |
455 dp->df_count[i] += n; | |
456 } | |
457 } | |
458 else | |
459 { | |
460 if (dp->df_lnum[idx] <= line1) | |
461 { | |
462 /* inserted lines somewhere in this diff */ | |
463 dp->df_count[idx] += inserted; | |
464 check_unchanged = TRUE; | |
465 } | |
466 else | |
467 /* inserted lines somewhere above this diff */ | |
468 dp->df_lnum[idx] += inserted; | |
469 } | |
470 | |
471 if (check_unchanged) | |
472 /* Check if inserted lines are equal, may reduce the | |
473 * size of the diff. TODO: also check for equal lines | |
474 * in the middle and perhaps split the block. */ | |
672 | 475 diff_check_unchanged(tp, dp); |
7 | 476 } |
477 } | |
478 | |
479 /* check if this block touches the previous one, may merge them. */ | |
480 if (dprev != NULL && dprev->df_lnum[idx] + dprev->df_count[idx] | |
481 == dp->df_lnum[idx]) | |
482 { | |
483 for (i = 0; i < DB_COUNT; ++i) | |
672 | 484 if (tp->tp_diffbuf[i] != NULL) |
7 | 485 dprev->df_count[i] += dp->df_count[i]; |
486 dprev->df_next = dp->df_next; | |
487 vim_free(dp); | |
488 dp = dprev->df_next; | |
489 } | |
490 else | |
491 { | |
492 /* Advance to next entry. */ | |
493 dprev = dp; | |
494 dp = dp->df_next; | |
495 } | |
496 } | |
497 | |
498 dprev = NULL; | |
672 | 499 dp = tp->tp_first_diff; |
7 | 500 while (dp != NULL) |
501 { | |
502 /* All counts are zero, remove this entry. */ | |
503 for (i = 0; i < DB_COUNT; ++i) | |
672 | 504 if (tp->tp_diffbuf[i] != NULL && dp->df_count[i] != 0) |
7 | 505 break; |
506 if (i == DB_COUNT) | |
507 { | |
508 dnext = dp->df_next; | |
509 vim_free(dp); | |
510 dp = dnext; | |
511 if (dprev == NULL) | |
672 | 512 tp->tp_first_diff = dnext; |
7 | 513 else |
514 dprev->df_next = dnext; | |
515 } | |
516 else | |
517 { | |
518 /* Advance to next entry. */ | |
519 dprev = dp; | |
520 dp = dp->df_next; | |
521 } | |
522 | |
523 } | |
672 | 524 |
525 if (tp == curtab) | |
526 { | |
527 diff_redraw(TRUE); | |
7 | 528 |
672 | 529 /* Need to recompute the scroll binding, may remove or add filler |
530 * lines (e.g., when adding lines above w_topline). But it's slow when | |
531 * making many changes, postpone until redrawing. */ | |
532 diff_need_scrollbind = TRUE; | |
533 } | |
7 | 534 } |
535 | |
536 /* | |
537 * Allocate a new diff block and link it between "dprev" and "dp". | |
538 */ | |
539 static diff_T * | |
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540 diff_alloc_new(tabpage_T *tp, diff_T *dprev, diff_T *dp) |
7 | 541 { |
542 diff_T *dnew; | |
543 | |
544 dnew = (diff_T *)alloc((unsigned)sizeof(diff_T)); | |
545 if (dnew != NULL) | |
546 { | |
547 dnew->df_next = dp; | |
548 if (dprev == NULL) | |
672 | 549 tp->tp_first_diff = dnew; |
7 | 550 else |
551 dprev->df_next = dnew; | |
552 } | |
553 return dnew; | |
554 } | |
555 | |
556 /* | |
557 * Check if the diff block "dp" can be made smaller for lines at the start and | |
558 * end that are equal. Called after inserting lines. | |
559 * This may result in a change where all buffers have zero lines, the caller | |
560 * must take care of removing it. | |
561 */ | |
562 static void | |
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563 diff_check_unchanged(tabpage_T *tp, diff_T *dp) |
7 | 564 { |
565 int i_org; | |
566 int i_new; | |
567 int off_org, off_new; | |
568 char_u *line_org; | |
569 int dir = FORWARD; | |
570 | |
571 /* Find the first buffers, use it as the original, compare the other | |
572 * buffer lines against this one. */ | |
573 for (i_org = 0; i_org < DB_COUNT; ++i_org) | |
672 | 574 if (tp->tp_diffbuf[i_org] != NULL) |
7 | 575 break; |
576 if (i_org == DB_COUNT) /* safety check */ | |
577 return; | |
578 | |
672 | 579 if (diff_check_sanity(tp, dp) == FAIL) |
7 | 580 return; |
581 | |
582 /* First check lines at the top, then at the bottom. */ | |
583 off_org = 0; | |
584 off_new = 0; | |
585 for (;;) | |
586 { | |
587 /* Repeat until a line is found which is different or the number of | |
588 * lines has become zero. */ | |
589 while (dp->df_count[i_org] > 0) | |
590 { | |
591 /* Copy the line, the next ml_get() will invalidate it. */ | |
592 if (dir == BACKWARD) | |
593 off_org = dp->df_count[i_org] - 1; | |
672 | 594 line_org = vim_strsave(ml_get_buf(tp->tp_diffbuf[i_org], |
7 | 595 dp->df_lnum[i_org] + off_org, FALSE)); |
596 if (line_org == NULL) | |
597 return; | |
598 for (i_new = i_org + 1; i_new < DB_COUNT; ++i_new) | |
599 { | |
672 | 600 if (tp->tp_diffbuf[i_new] == NULL) |
7 | 601 continue; |
602 if (dir == BACKWARD) | |
603 off_new = dp->df_count[i_new] - 1; | |
604 /* if other buffer doesn't have this line, it was inserted */ | |
605 if (off_new < 0 || off_new >= dp->df_count[i_new]) | |
606 break; | |
672 | 607 if (diff_cmp(line_org, ml_get_buf(tp->tp_diffbuf[i_new], |
7 | 608 dp->df_lnum[i_new] + off_new, FALSE)) != 0) |
609 break; | |
610 } | |
611 vim_free(line_org); | |
612 | |
613 /* Stop when a line isn't equal in all diff buffers. */ | |
614 if (i_new != DB_COUNT) | |
615 break; | |
616 | |
617 /* Line matched in all buffers, remove it from the diff. */ | |
618 for (i_new = i_org; i_new < DB_COUNT; ++i_new) | |
672 | 619 if (tp->tp_diffbuf[i_new] != NULL) |
7 | 620 { |
621 if (dir == FORWARD) | |
622 ++dp->df_lnum[i_new]; | |
623 --dp->df_count[i_new]; | |
624 } | |
625 } | |
626 if (dir == BACKWARD) | |
627 break; | |
628 dir = BACKWARD; | |
629 } | |
630 } | |
631 | |
632 /* | |
633 * Check if a diff block doesn't contain invalid line numbers. | |
634 * This can happen when the diff program returns invalid results. | |
635 */ | |
636 static int | |
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637 diff_check_sanity(tabpage_T *tp, diff_T *dp) |
7 | 638 { |
639 int i; | |
640 | |
641 for (i = 0; i < DB_COUNT; ++i) | |
672 | 642 if (tp->tp_diffbuf[i] != NULL) |
7 | 643 if (dp->df_lnum[i] + dp->df_count[i] - 1 |
672 | 644 > tp->tp_diffbuf[i]->b_ml.ml_line_count) |
7 | 645 return FAIL; |
646 return OK; | |
647 } | |
648 | |
649 /* | |
672 | 650 * Mark all diff buffers in the current tab page for redraw. |
7 | 651 */ |
652 static void | |
7817
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653 diff_redraw( |
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654 int dofold) // also recompute the folds |
7 | 655 { |
656 win_T *wp; | |
657 int n; | |
658 | |
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659 FOR_ALL_WINDOWS(wp) |
7 | 660 if (wp->w_p_diff) |
661 { | |
738 | 662 redraw_win_later(wp, SOME_VALID); |
7 | 663 #ifdef FEAT_FOLDING |
664 if (dofold && foldmethodIsDiff(wp)) | |
665 foldUpdateAll(wp); | |
666 #endif | |
667 /* A change may have made filler lines invalid, need to take care | |
668 * of that for other windows. */ | |
3904 | 669 n = diff_check(wp, wp->w_topline); |
670 if ((wp != curwin && wp->w_topfill > 0) || n > 0) | |
7 | 671 { |
672 if (wp->w_topfill > n) | |
673 wp->w_topfill = (n < 0 ? 0 : n); | |
3904 | 674 else if (n > 0 && n > wp->w_topfill) |
675 wp->w_topfill = n; | |
5934 | 676 check_topfill(wp, FALSE); |
7 | 677 } |
678 } | |
679 } | |
680 | |
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681 static void |
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682 clear_diffin(diffin_T *din) |
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683 { |
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684 if (din->din_fname == NULL) |
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685 { |
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686 vim_free(din->din_mmfile.ptr); |
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687 din->din_mmfile.ptr = NULL; |
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688 } |
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689 else |
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690 mch_remove(din->din_fname); |
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691 } |
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692 |
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693 static void |
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694 clear_diffout(diffout_T *dout) |
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695 { |
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696 if (dout->dout_fname == NULL) |
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697 ga_clear_strings(&dout->dout_ga); |
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698 else |
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699 mch_remove(dout->dout_fname); |
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700 } |
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701 |
7 | 702 /* |
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703 * Write buffer "buf" to a memory buffer. |
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704 * Return FAIL for failure. |
7 | 705 */ |
706 static int | |
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707 diff_write_buffer(buf_T *buf, diffin_T *din) |
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708 { |
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709 linenr_T lnum; |
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710 char_u *s; |
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711 long len = 0; |
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712 char_u *ptr; |
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713 |
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714 // xdiff requires one big block of memory with all the text. |
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715 for (lnum = 1; lnum <= buf->b_ml.ml_line_count; ++lnum) |
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716 len += (long)STRLEN(ml_get_buf(buf, lnum, FALSE)) + 1; |
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717 ptr = lalloc(len, TRUE); |
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718 if (ptr == NULL) |
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719 { |
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720 // Allocating memory failed. This can happen, because we try to read |
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721 // the whole buffer text into memory. Set the failed flag, the diff |
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722 // will be retried with external diff. The flag is never reset. |
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723 buf->b_diff_failed = TRUE; |
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724 if (p_verbose > 0) |
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725 { |
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726 verbose_enter(); |
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727 smsg((char_u *) |
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728 _("Not enough memory to use internal diff for buffer \"%s\""), |
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729 buf->b_fname); |
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730 verbose_leave(); |
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731 } |
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732 return FAIL; |
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733 } |
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734 din->din_mmfile.ptr = (char *)ptr; |
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735 din->din_mmfile.size = len; |
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736 |
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737 len = 0; |
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738 for (lnum = 1; lnum <= buf->b_ml.ml_line_count; ++lnum) |
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739 { |
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740 for (s = ml_get_buf(buf, lnum, FALSE); *s != NUL; ) |
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741 { |
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742 if (diff_flags & DIFF_ICASE) |
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743 { |
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744 int c; |
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745 |
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746 // xdiff doesn't support ignoring case, fold-case the text. |
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747 #ifdef FEAT_MBYTE |
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748 int orig_len; |
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749 char_u cbuf[MB_MAXBYTES + 1]; |
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750 |
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751 c = PTR2CHAR(s); |
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752 c = enc_utf8 ? utf_fold(c) : MB_TOLOWER(c); |
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753 orig_len = MB_PTR2LEN(s); |
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754 if (mb_char2bytes(c, cbuf) != orig_len) |
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755 // TODO: handle byte length difference |
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756 mch_memmove(ptr + len, s, orig_len); |
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757 else |
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758 mch_memmove(ptr + len, cbuf, orig_len); |
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759 |
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760 s += orig_len; |
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761 len += orig_len; |
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762 #else |
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763 c = *s++; |
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764 ptr[len++] = TOLOWER_LOC(c); |
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765 #endif |
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766 } |
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767 else |
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768 ptr[len++] = *s++; |
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769 } |
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770 ptr[len++] = NL; |
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771 } |
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772 return OK; |
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773 } |
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774 |
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775 /* |
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776 * Write buffer "buf" to file or memory buffer. |
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777 * Return FAIL for failure. |
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778 */ |
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779 static int |
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780 diff_write(buf_T *buf, diffin_T *din) |
7 | 781 { |
782 int r; | |
783 char_u *save_ff; | |
784 | |
14696
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785 if (din->din_fname == NULL) |
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786 return diff_write_buffer(buf, din); |
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787 |
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788 // Always use 'fileformat' set to "unix". |
7 | 789 save_ff = buf->b_p_ff; |
790 buf->b_p_ff = vim_strsave((char_u *)FF_UNIX); | |
14696
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791 r = buf_write(buf, din->din_fname, NULL, |
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792 (linenr_T)1, buf->b_ml.ml_line_count, |
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793 NULL, FALSE, FALSE, FALSE, TRUE); |
7 | 794 free_string_option(buf->b_p_ff); |
795 buf->b_p_ff = save_ff; | |
796 return r; | |
797 } | |
798 | |
799 /* | |
14696
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800 * Update the diffs for all buffers involved. |
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801 */ |
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802 static void |
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803 diff_try_update( |
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804 diffio_T *dio, |
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805 int idx_orig, |
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806 exarg_T *eap) // "eap" can be NULL |
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807 { |
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808 buf_T *buf; |
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809 int idx_new; |
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810 |
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811 if (dio->dio_internal) |
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812 { |
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813 ga_init2(&dio->dio_diff.dout_ga, sizeof(char *), 1000); |
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814 } |
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815 else |
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816 { |
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817 // We need three temp file names. |
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818 dio->dio_orig.din_fname = vim_tempname('o', TRUE); |
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819 dio->dio_new.din_fname = vim_tempname('n', TRUE); |
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820 dio->dio_diff.dout_fname = vim_tempname('d', TRUE); |
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821 if (dio->dio_orig.din_fname == NULL |
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822 || dio->dio_new.din_fname == NULL |
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823 || dio->dio_diff.dout_fname == NULL) |
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824 goto theend; |
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825 } |
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826 |
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827 // Check external diff is actually working. |
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828 if (!dio->dio_internal && check_external_diff(dio) == FAIL) |
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829 goto theend; |
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830 |
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831 // :diffupdate! |
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832 if (eap != NULL && eap->forceit) |
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833 for (idx_new = idx_orig; idx_new < DB_COUNT; ++idx_new) |
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834 { |
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835 buf = curtab->tp_diffbuf[idx_new]; |
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836 if (buf_valid(buf)) |
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837 buf_check_timestamp(buf, FALSE); |
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838 } |
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839 |
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840 // Write the first buffer to a tempfile or mmfile_t. |
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841 buf = curtab->tp_diffbuf[idx_orig]; |
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842 if (diff_write(buf, &dio->dio_orig) == FAIL) |
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843 goto theend; |
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844 |
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845 // Make a difference between the first buffer and every other. |
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846 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new) |
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847 { |
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848 buf = curtab->tp_diffbuf[idx_new]; |
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849 if (buf == NULL || buf->b_ml.ml_mfp == NULL) |
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850 continue; // skip buffer that isn't loaded |
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851 |
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852 // Write the other buffer and diff with the first one. |
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853 if (diff_write(buf, &dio->dio_new) == FAIL) |
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854 continue; |
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855 if (diff_file(dio) == FAIL) |
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856 continue; |
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857 |
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858 // Read the diff output and add each entry to the diff list. |
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859 diff_read(idx_orig, idx_new, &dio->dio_diff); |
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860 |
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861 clear_diffin(&dio->dio_new); |
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862 clear_diffout(&dio->dio_diff); |
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863 } |
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864 clear_diffin(&dio->dio_orig); |
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865 |
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866 theend: |
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867 vim_free(dio->dio_orig.din_fname); |
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868 vim_free(dio->dio_new.din_fname); |
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869 vim_free(dio->dio_diff.dout_fname); |
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870 } |
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871 |
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872 /* |
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873 * Return TRUE if the options are set to use the internal diff library. |
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874 * Note that if the internal diff failed for one of the buffers, the external |
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875 * diff will be used anyway. |
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876 */ |
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877 int |
14696
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878 diff_internal(void) |
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879 { |
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880 return (diff_flags & DIFF_INTERNAL) != 0 && *p_dex == NUL; |
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881 } |
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882 |
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883 /* |
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884 * Return TRUE if the internal diff failed for one of the diff buffers. |
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885 */ |
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886 static int |
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887 diff_internal_failed(void) |
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888 { |
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889 int idx; |
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890 |
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891 // Only need to do something when there is another buffer. |
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892 for (idx = 0; idx < DB_COUNT; ++idx) |
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893 if (curtab->tp_diffbuf[idx] != NULL |
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894 && curtab->tp_diffbuf[idx]->b_diff_failed) |
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895 return TRUE; |
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896 return FALSE; |
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897 } |
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|
898 |
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899 /* |
7 | 900 * Completely update the diffs for the buffers involved. |
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901 * When using the external "diff" command the buffers are written to a file, |
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902 * also for unmodified buffers (the file could have been produced by |
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903 * autocommands, e.g. the netrw plugin). |
7 | 904 */ |
905 void | |
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906 ex_diffupdate(exarg_T *eap) // "eap" can be NULL |
7 | 907 { |
908 int idx_orig; | |
909 int idx_new; | |
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910 diffio_T diffio; |
7 | 911 |
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912 if (diff_busy) |
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913 { |
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914 diff_need_update = TRUE; |
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915 return; |
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916 } |
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917 |
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918 // Delete all diffblocks. |
672 | 919 diff_clear(curtab); |
920 curtab->tp_diff_invalid = FALSE; | |
7 | 921 |
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922 // Use the first buffer as the original text. |
7 | 923 for (idx_orig = 0; idx_orig < DB_COUNT; ++idx_orig) |
672 | 924 if (curtab->tp_diffbuf[idx_orig] != NULL) |
7 | 925 break; |
926 if (idx_orig == DB_COUNT) | |
927 return; | |
928 | |
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929 // Only need to do something when there is another buffer. |
7 | 930 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new) |
672 | 931 if (curtab->tp_diffbuf[idx_new] != NULL) |
7 | 932 break; |
933 if (idx_new == DB_COUNT) | |
934 return; | |
935 | |
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936 // Only use the internal method if it did not fail for one of the buffers. |
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937 vim_memset(&diffio, 0, sizeof(diffio)); |
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938 diffio.dio_internal = diff_internal() && !diff_internal_failed(); |
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939 |
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940 diff_try_update(&diffio, idx_orig, eap); |
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941 if (diffio.dio_internal && diff_internal_failed()) |
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942 { |
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943 // Internal diff failed, use external diff instead. |
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944 vim_memset(&diffio, 0, sizeof(diffio)); |
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945 diff_try_update(&diffio, idx_orig, eap); |
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946 } |
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947 |
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948 // force updating cursor position on screen |
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949 curwin->w_valid_cursor.lnum = 0; |
7 | 950 |
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951 diff_redraw(TRUE); |
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952 |
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953 apply_autocmds(EVENT_DIFFUPDATED, NULL, NULL, FALSE, curbuf); |
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954 } |
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955 |
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956 /* |
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957 * Do a quick test if "diff" really works. Otherwise it looks like there |
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958 * are no differences. Can't use the return value, it's non-zero when |
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959 * there are differences. |
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960 */ |
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961 static int |
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962 check_external_diff(diffio_T *diffio) |
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963 { |
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964 FILE *fd; |
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965 int ok; |
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966 int io_error = FALSE; |
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967 |
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968 // May try twice, first with "-a" and then without. |
7 | 969 for (;;) |
970 { | |
971 ok = FALSE; | |
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972 fd = mch_fopen((char *)diffio->dio_orig.din_fname, "w"); |
1757 | 973 if (fd == NULL) |
974 io_error = TRUE; | |
975 else | |
7 | 976 { |
1757 | 977 if (fwrite("line1\n", (size_t)6, (size_t)1, fd) != 1) |
978 io_error = TRUE; | |
7 | 979 fclose(fd); |
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980 fd = mch_fopen((char *)diffio->dio_new.din_fname, "w"); |
1757 | 981 if (fd == NULL) |
982 io_error = TRUE; | |
983 else | |
7 | 984 { |
1757 | 985 if (fwrite("line2\n", (size_t)6, (size_t)1, fd) != 1) |
986 io_error = TRUE; | |
7 | 987 fclose(fd); |
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988 fd = NULL; |
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989 if (diff_file(diffio) == OK) |
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990 fd = mch_fopen((char *)diffio->dio_diff.dout_fname, "r"); |
1757 | 991 if (fd == NULL) |
992 io_error = TRUE; | |
993 else | |
7 | 994 { |
995 char_u linebuf[LBUFLEN]; | |
996 | |
997 for (;;) | |
998 { | |
999 /* There must be a line that contains "1c1". */ | |
1000 if (tag_fgets(linebuf, LBUFLEN, fd)) | |
1001 break; | |
1002 if (STRNCMP(linebuf, "1c1", 3) == 0) | |
1003 ok = TRUE; | |
1004 } | |
1005 fclose(fd); | |
1006 } | |
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1007 mch_remove(diffio->dio_diff.dout_fname); |
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1008 mch_remove(diffio->dio_new.din_fname); |
7 | 1009 } |
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1010 mch_remove(diffio->dio_orig.din_fname); |
7 | 1011 } |
1012 | |
1013 #ifdef FEAT_EVAL | |
1014 /* When using 'diffexpr' break here. */ | |
1015 if (*p_dex != NUL) | |
1016 break; | |
1017 #endif | |
1018 | |
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1019 #if defined(MSWIN) |
7 | 1020 /* If the "-a" argument works, also check if "--binary" works. */ |
1021 if (ok && diff_a_works == MAYBE && diff_bin_works == MAYBE) | |
1022 { | |
1023 diff_a_works = TRUE; | |
1024 diff_bin_works = TRUE; | |
1025 continue; | |
1026 } | |
1027 if (!ok && diff_a_works == TRUE && diff_bin_works == TRUE) | |
1028 { | |
1029 /* Tried --binary, but it failed. "-a" works though. */ | |
1030 diff_bin_works = FALSE; | |
1031 ok = TRUE; | |
1032 } | |
1033 #endif | |
1034 | |
1035 /* If we checked if "-a" works already, break here. */ | |
1036 if (diff_a_works != MAYBE) | |
1037 break; | |
1038 diff_a_works = ok; | |
1039 | |
1040 /* If "-a" works break here, otherwise retry without "-a". */ | |
1041 if (ok) | |
1042 break; | |
1043 } | |
1044 if (!ok) | |
1045 { | |
1757 | 1046 if (io_error) |
1047 EMSG(_("E810: Cannot read or write temp files")); | |
7 | 1048 EMSG(_("E97: Cannot create diffs")); |
1049 diff_a_works = MAYBE; | |
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1050 #if defined(MSWIN) |
7 | 1051 diff_bin_works = MAYBE; |
1052 #endif | |
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1053 return FAIL; |
7 | 1054 } |
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1055 return OK; |
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1056 } |
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1057 |
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1058 /* |
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1059 * Invoke the xdiff function. |
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1060 */ |
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1061 static int |
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1062 diff_file_internal(diffio_T *diffio) |
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1063 { |
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1064 xpparam_t param; |
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1065 xdemitconf_t emit_cfg; |
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1066 xdemitcb_t emit_cb; |
7 | 1067 |
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1068 vim_memset(¶m, 0, sizeof(param)); |
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1069 vim_memset(&emit_cfg, 0, sizeof(emit_cfg)); |
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1070 vim_memset(&emit_cb, 0, sizeof(emit_cb)); |
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1071 |
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1072 param.flags = diff_algorithm; |
3524 | 1073 |
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1074 if (diff_flags & DIFF_IWHITE) |
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1075 param.flags |= XDF_IGNORE_WHITESPACE_CHANGE; |
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1076 if (diff_flags & DIFF_IWHITEALL) |
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1077 param.flags |= XDF_IGNORE_WHITESPACE; |
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1078 if (diff_flags & DIFF_IWHITEEOL) |
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1079 param.flags |= XDF_IGNORE_WHITESPACE_AT_EOL; |
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1080 if (diff_flags & DIFF_IBLANK) |
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1081 param.flags |= XDF_IGNORE_BLANK_LINES; |
7 | 1082 |
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1083 emit_cfg.ctxlen = 0; // don't need any diff_context here |
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1084 emit_cb.priv = &diffio->dio_diff; |
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1085 emit_cb.outf = xdiff_out; |
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1086 if (xdl_diff(&diffio->dio_orig.din_mmfile, |
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1087 &diffio->dio_new.din_mmfile, |
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1088 ¶m, &emit_cfg, &emit_cb) < 0) |
7 | 1089 { |
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1090 EMSG(_("E960: Problem creating the internal diff")); |
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1091 return FAIL; |
7 | 1092 } |
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1093 return OK; |
7 | 1094 } |
1095 | |
1096 /* | |
1097 * Make a diff between files "tmp_orig" and "tmp_new", results in "tmp_diff". | |
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1098 * return OK or FAIL; |
7 | 1099 */ |
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1100 static int |
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1101 diff_file(diffio_T *dio) |
7 | 1102 { |
1103 char_u *cmd; | |
1872 | 1104 size_t len; |
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1105 char_u *tmp_orig = dio->dio_orig.din_fname; |
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1106 char_u *tmp_new = dio->dio_new.din_fname; |
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1107 char_u *tmp_diff = dio->dio_diff.dout_fname; |
7 | 1108 |
1109 #ifdef FEAT_EVAL | |
1110 if (*p_dex != NUL) | |
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1111 { |
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1112 // Use 'diffexpr' to generate the diff file. |
7 | 1113 eval_diff(tmp_orig, tmp_new, tmp_diff); |
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1114 return OK; |
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1115 } |
7 | 1116 else |
1117 #endif | |
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1118 // Use xdiff for generating the diff. |
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1119 if (dio->dio_internal) |
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1120 { |
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1121 return diff_file_internal(dio); |
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1122 } |
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|
1123 else |
7 | 1124 { |
1872 | 1125 len = STRLEN(tmp_orig) + STRLEN(tmp_new) |
1126 + STRLEN(tmp_diff) + STRLEN(p_srr) + 27; | |
1127 cmd = alloc((unsigned)len); | |
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|
1128 if (cmd == NULL) |
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|
1129 return FAIL; |
193 | 1130 |
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1131 // We don't want $DIFF_OPTIONS to get in the way. |
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|
1132 if (getenv("DIFF_OPTIONS")) |
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|
1133 vim_setenv((char_u *)"DIFF_OPTIONS", (char_u *)""); |
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|
1134 |
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|
1135 // Build the diff command and execute it. Always use -a, binary |
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1136 // differences are of no use. Ignore errors, diff returns |
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|
1137 // non-zero when differences have been found. |
14762
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patch 8.1.0393: not all white space difference options available
Christian Brabandt <cb@256bit.org>
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changeset
|
1138 vim_snprintf((char *)cmd, len, "diff %s%s%s%s%s%s%s%s %s", |
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Christian Brabandt <cb@256bit.org>
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changeset
|
1139 diff_a_works == FALSE ? "" : "-a ", |
8212
05b88224cea1
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Christian Brabandt <cb@256bit.org>
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7817
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changeset
|
1140 #if defined(MSWIN) |
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|
1141 diff_bin_works == TRUE ? "--binary " : "", |
7 | 1142 #else |
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Christian Brabandt <cb@256bit.org>
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|
1143 "", |
7 | 1144 #endif |
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patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1145 (diff_flags & DIFF_IWHITE) ? "-b " : "", |
14762
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Christian Brabandt <cb@256bit.org>
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|
1146 (diff_flags & DIFF_IWHITEALL) ? "-w " : "", |
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Christian Brabandt <cb@256bit.org>
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|
1147 (diff_flags & DIFF_IWHITEEOL) ? "-Z " : "", |
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Christian Brabandt <cb@256bit.org>
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|
1148 (diff_flags & DIFF_IBLANK) ? "-B " : "", |
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Christian Brabandt <cb@256bit.org>
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|
1149 (diff_flags & DIFF_ICASE) ? "-i " : "", |
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patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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|
1150 tmp_orig, tmp_new); |
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Christian Brabandt <cb@256bit.org>
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changeset
|
1151 append_redir(cmd, (int)len, p_srr, tmp_diff); |
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Christian Brabandt <cb@256bit.org>
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changeset
|
1152 block_autocmds(); // avoid ShellCmdPost stuff |
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patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1153 (void)call_shell(cmd, SHELL_FILTER|SHELL_SILENT|SHELL_DOOUT); |
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patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1154 unblock_autocmds(); |
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Christian Brabandt <cb@256bit.org>
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changeset
|
1155 vim_free(cmd); |
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|
1156 return OK; |
7 | 1157 } |
1158 } | |
1159 | |
1160 /* | |
1161 * Create a new version of a file from the current buffer and a diff file. | |
1162 * The buffer is written to a file, also for unmodified buffers (the file | |
1163 * could have been produced by autocommands, e.g. the netrw plugin). | |
1164 */ | |
1165 void | |
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1166 ex_diffpatch(exarg_T *eap) |
7 | 1167 { |
1168 char_u *tmp_orig; /* name of original temp file */ | |
1169 char_u *tmp_new; /* name of patched temp file */ | |
1170 char_u *buf = NULL; | |
1872 | 1171 size_t buflen; |
7 | 1172 win_T *old_curwin = curwin; |
1173 char_u *newname = NULL; /* name of patched file buffer */ | |
1174 #ifdef UNIX | |
1175 char_u dirbuf[MAXPATHL]; | |
1176 char_u *fullname = NULL; | |
1177 #endif | |
1178 #ifdef FEAT_BROWSE | |
1179 char_u *browseFile = NULL; | |
1180 int browse_flag = cmdmod.browse; | |
1181 #endif | |
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Christian Brabandt <cb@256bit.org>
parents:
8368
diff
changeset
|
1182 stat_T st; |
11113
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patch 8.0.0444: diffpatch fails when the file name has a quote
Christian Brabandt <cb@256bit.org>
parents:
11109
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changeset
|
1183 char_u *esc_name = NULL; |
7 | 1184 |
1185 #ifdef FEAT_BROWSE | |
1186 if (cmdmod.browse) | |
1187 { | |
28 | 1188 browseFile = do_browse(0, (char_u *)_("Patch file"), |
13802
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patch 8.0.1773: dialog messages are not translated
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
1189 eap->arg, NULL, NULL, |
378f9f8e6d8f
patch 8.0.1773: dialog messages are not translated
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
1190 (char_u *)_(BROWSE_FILTER_ALL_FILES), NULL); |
7 | 1191 if (browseFile == NULL) |
1192 return; /* operation cancelled */ | |
1193 eap->arg = browseFile; | |
1194 cmdmod.browse = FALSE; /* don't let do_ecmd() browse again */ | |
1195 } | |
1196 #endif | |
1197 | |
1198 /* We need two temp file names. */ | |
6721 | 1199 tmp_orig = vim_tempname('o', FALSE); |
1200 tmp_new = vim_tempname('n', FALSE); | |
7 | 1201 if (tmp_orig == NULL || tmp_new == NULL) |
1202 goto theend; | |
1203 | |
1204 /* Write the current buffer to "tmp_orig". */ | |
1205 if (buf_write(curbuf, tmp_orig, NULL, | |
1206 (linenr_T)1, curbuf->b_ml.ml_line_count, | |
1207 NULL, FALSE, FALSE, FALSE, TRUE) == FAIL) | |
1208 goto theend; | |
1209 | |
1210 #ifdef UNIX | |
1211 /* Get the absolute path of the patchfile, changing directory below. */ | |
1212 fullname = FullName_save(eap->arg, FALSE); | |
1213 #endif | |
11113
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patch 8.0.0444: diffpatch fails when the file name has a quote
Christian Brabandt <cb@256bit.org>
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11109
diff
changeset
|
1214 esc_name = vim_strsave_shellescape( |
7 | 1215 # ifdef UNIX |
11113
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patch 8.0.0444: diffpatch fails when the file name has a quote
Christian Brabandt <cb@256bit.org>
parents:
11109
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changeset
|
1216 fullname != NULL ? fullname : |
7 | 1217 # endif |
11113
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patch 8.0.0444: diffpatch fails when the file name has a quote
Christian Brabandt <cb@256bit.org>
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changeset
|
1218 eap->arg, TRUE, TRUE); |
081ed9efb5c0
patch 8.0.0444: diffpatch fails when the file name has a quote
Christian Brabandt <cb@256bit.org>
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changeset
|
1219 if (esc_name == NULL) |
081ed9efb5c0
patch 8.0.0444: diffpatch fails when the file name has a quote
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1220 goto theend; |
081ed9efb5c0
patch 8.0.0444: diffpatch fails when the file name has a quote
Christian Brabandt <cb@256bit.org>
parents:
11109
diff
changeset
|
1221 buflen = STRLEN(tmp_orig) + STRLEN(esc_name) + STRLEN(tmp_new) + 16; |
1872 | 1222 buf = alloc((unsigned)buflen); |
7 | 1223 if (buf == NULL) |
1224 goto theend; | |
1225 | |
1226 #ifdef UNIX | |
1788 | 1227 /* Temporarily chdir to /tmp, to avoid patching files in the current |
7 | 1228 * directory when the patch file contains more than one patch. When we |
1229 * have our own temp dir use that instead, it will be cleaned up when we | |
1230 * exit (any .rej files created). Don't change directory if we can't | |
1231 * return to the current. */ | |
1232 if (mch_dirname(dirbuf, MAXPATHL) != OK || mch_chdir((char *)dirbuf) != 0) | |
1233 dirbuf[0] = NUL; | |
1234 else | |
1235 { | |
1236 # ifdef TEMPDIRNAMES | |
1237 if (vim_tempdir != NULL) | |
14730
193471015e1a
patch 8.1.0377: xdiff doesn't use the Vim memory allocation functions
Christian Brabandt <cb@256bit.org>
parents:
14726
diff
changeset
|
1238 vim_ignored = mch_chdir((char *)vim_tempdir); |
7 | 1239 else |
1240 # endif | |
14730
193471015e1a
patch 8.1.0377: xdiff doesn't use the Vim memory allocation functions
Christian Brabandt <cb@256bit.org>
parents:
14726
diff
changeset
|
1241 vim_ignored = mch_chdir("/tmp"); |
7 | 1242 shorten_fnames(TRUE); |
1243 } | |
1244 #endif | |
1245 | |
1246 #ifdef FEAT_EVAL | |
1247 if (*p_pex != NUL) | |
1248 /* Use 'patchexpr' to generate the new file. */ | |
1249 eval_patch(tmp_orig, | |
1250 # ifdef UNIX | |
1251 fullname != NULL ? fullname : | |
1252 # endif | |
1253 eap->arg, tmp_new); | |
1254 else | |
1255 #endif | |
1256 { | |
1257 /* Build the patch command and execute it. Ignore errors. Switch to | |
1258 * cooked mode to allow the user to respond to prompts. */ | |
11113
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changeset
|
1259 vim_snprintf((char *)buf, buflen, "patch -o %s %s < %s", |
081ed9efb5c0
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Christian Brabandt <cb@256bit.org>
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changeset
|
1260 tmp_new, tmp_orig, esc_name); |
1410 | 1261 block_autocmds(); /* Avoid ShellCmdPost stuff */ |
7 | 1262 (void)call_shell(buf, SHELL_FILTER | SHELL_COOKED); |
1410 | 1263 unblock_autocmds(); |
7 | 1264 } |
1265 | |
1266 #ifdef UNIX | |
1267 if (dirbuf[0] != NUL) | |
1268 { | |
1269 if (mch_chdir((char *)dirbuf) != 0) | |
1270 EMSG(_(e_prev_dir)); | |
1271 shorten_fnames(TRUE); | |
1272 } | |
1273 #endif | |
1274 | |
1275 /* patch probably has written over the screen */ | |
1276 redraw_later(CLEAR); | |
1277 | |
1278 /* Delete any .orig or .rej file created. */ | |
1279 STRCPY(buf, tmp_new); | |
1280 STRCAT(buf, ".orig"); | |
1281 mch_remove(buf); | |
1282 STRCPY(buf, tmp_new); | |
1283 STRCAT(buf, ".rej"); | |
1284 mch_remove(buf); | |
1285 | |
1942 | 1286 /* Only continue if the output file was created. */ |
1287 if (mch_stat((char *)tmp_new, &st) < 0 || st.st_size == 0) | |
1288 EMSG(_("E816: Cannot read patch output")); | |
1289 else | |
7 | 1290 { |
1942 | 1291 if (curbuf->b_fname != NULL) |
1292 { | |
1293 newname = vim_strnsave(curbuf->b_fname, | |
7 | 1294 (int)(STRLEN(curbuf->b_fname) + 4)); |
1942 | 1295 if (newname != NULL) |
1296 STRCAT(newname, ".new"); | |
1297 } | |
7 | 1298 |
1299 #ifdef FEAT_GUI | |
1942 | 1300 need_mouse_correct = TRUE; |
7 | 1301 #endif |
1942 | 1302 /* don't use a new tab page, each tab page has its own diffs */ |
1303 cmdmod.tab = 0; | |
682 | 1304 |
1942 | 1305 if (win_split(0, (diff_flags & DIFF_VERTICAL) ? WSP_VERT : 0) != FAIL) |
1306 { | |
1307 /* Pretend it was a ":split fname" command */ | |
1308 eap->cmdidx = CMD_split; | |
1309 eap->arg = tmp_new; | |
1310 do_exedit(eap, old_curwin); | |
7 | 1311 |
1942 | 1312 /* check that split worked and editing tmp_new */ |
1313 if (curwin != old_curwin && win_valid(old_curwin)) | |
1314 { | |
1315 /* Set 'diff', 'scrollbind' on and 'wrap' off. */ | |
1316 diff_win_options(curwin, TRUE); | |
1317 diff_win_options(old_curwin, TRUE); | |
7 | 1318 |
1942 | 1319 if (newname != NULL) |
1320 { | |
1321 /* do a ":file filename.new" on the patched buffer */ | |
1322 eap->arg = newname; | |
1323 ex_file(eap); | |
7 | 1324 |
1942 | 1325 /* Do filetype detection with the new name. */ |
1326 if (au_has_group((char_u *)"filetypedetect")) | |
1327 do_cmdline_cmd((char_u *)":doau filetypedetect BufRead"); | |
1328 } | |
7 | 1329 } |
1330 } | |
1331 } | |
1332 | |
1333 theend: | |
1334 if (tmp_orig != NULL) | |
1335 mch_remove(tmp_orig); | |
1336 vim_free(tmp_orig); | |
1337 if (tmp_new != NULL) | |
1338 mch_remove(tmp_new); | |
1339 vim_free(tmp_new); | |
1340 vim_free(newname); | |
1341 vim_free(buf); | |
1342 #ifdef UNIX | |
1343 vim_free(fullname); | |
1344 #endif | |
11113
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Christian Brabandt <cb@256bit.org>
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changeset
|
1345 vim_free(esc_name); |
7 | 1346 #ifdef FEAT_BROWSE |
1347 vim_free(browseFile); | |
1348 cmdmod.browse = browse_flag; | |
1349 #endif | |
1350 } | |
1351 | |
1352 /* | |
1353 * Split the window and edit another file, setting options to show the diffs. | |
1354 */ | |
1355 void | |
7817
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1356 ex_diffsplit(exarg_T *eap) |
7 | 1357 { |
1358 win_T *old_curwin = curwin; | |
9487
69ed2c9d34a6
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Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
1359 bufref_T old_curbuf; |
7 | 1360 |
9487
69ed2c9d34a6
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Christian Brabandt <cb@256bit.org>
parents:
9387
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changeset
|
1361 set_bufref(&old_curbuf, curbuf); |
7 | 1362 #ifdef FEAT_GUI |
1363 need_mouse_correct = TRUE; | |
1364 #endif | |
10013
942d40a92be6
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Christian Brabandt <cb@256bit.org>
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1365 /* Need to compute w_fraction when no redraw happened yet. */ |
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1366 validate_cursor(); |
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1367 set_fraction(curwin); |
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1368 |
682 | 1369 /* don't use a new tab page, each tab page has its own diffs */ |
1370 cmdmod.tab = 0; | |
1371 | |
764 | 1372 if (win_split(0, (diff_flags & DIFF_VERTICAL) ? WSP_VERT : 0) != FAIL) |
7 | 1373 { |
1374 /* Pretend it was a ":split fname" command */ | |
1375 eap->cmdidx = CMD_split; | |
449 | 1376 curwin->w_p_diff = TRUE; |
7 | 1377 do_exedit(eap, old_curwin); |
1378 | |
1379 if (curwin != old_curwin) /* split must have worked */ | |
1380 { | |
1381 /* Set 'diff', 'scrollbind' on and 'wrap' off. */ | |
1382 diff_win_options(curwin, TRUE); | |
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1383 if (win_valid(old_curwin)) |
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1384 { |
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1385 diff_win_options(old_curwin, TRUE); |
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1386 |
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1387 if (bufref_valid(&old_curbuf)) |
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1388 /* Move the cursor position to that of the old window. */ |
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1389 curwin->w_cursor.lnum = diff_get_corresponding_line( |
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1390 old_curbuf.br_buf, old_curwin->w_cursor.lnum); |
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1391 } |
10013
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1392 /* Now that lines are folded scroll to show the cursor at the same |
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1393 * relative position. */ |
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1394 scroll_to_fraction(curwin, curwin->w_height); |
7 | 1395 } |
1396 } | |
1397 } | |
1398 | |
1399 /* | |
4352 | 1400 * Set options to show diffs for the current window. |
7 | 1401 */ |
1402 void | |
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1403 ex_diffthis(exarg_T *eap UNUSED) |
7 | 1404 { |
1405 /* Set 'diff', 'scrollbind' on and 'wrap' off. */ | |
1406 diff_win_options(curwin, TRUE); | |
1407 } | |
1408 | |
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1409 static void |
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1410 set_diff_option(win_T *wp, int value) |
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1411 { |
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1412 win_T *old_curwin = curwin; |
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1413 |
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1414 curwin = wp; |
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1415 curbuf = curwin->w_buffer; |
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1416 ++curbuf_lock; |
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1417 set_option_value((char_u *)"diff", (long)value, NULL, OPT_LOCAL); |
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1418 --curbuf_lock; |
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1419 curwin = old_curwin; |
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1420 curbuf = curwin->w_buffer; |
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1421 } |
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1422 |
7 | 1423 /* |
1424 * Set options in window "wp" for diff mode. | |
1425 */ | |
1426 void | |
7817
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1427 diff_win_options( |
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1428 win_T *wp, |
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1429 int addbuf) /* Add buffer to diff. */ |
7 | 1430 { |
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1431 # ifdef FEAT_FOLDING |
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1432 win_T *old_curwin = curwin; |
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1433 |
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1434 /* close the manually opened folds */ |
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1435 curwin = wp; |
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1436 newFoldLevel(); |
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1437 curwin = old_curwin; |
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1438 # endif |
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1439 |
2583 | 1440 /* Use 'scrollbind' and 'cursorbind' when available */ |
6897 | 1441 if (!wp->w_p_diff) |
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1442 wp->w_p_scb_save = wp->w_p_scb; |
2583 | 1443 wp->w_p_scb = TRUE; |
6897 | 1444 if (!wp->w_p_diff) |
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1445 wp->w_p_crb_save = wp->w_p_crb; |
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1446 wp->w_p_crb = TRUE; |
6897 | 1447 if (!wp->w_p_diff) |
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1448 wp->w_p_wrap_save = wp->w_p_wrap; |
7 | 1449 wp->w_p_wrap = FALSE; |
1450 # ifdef FEAT_FOLDING | |
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1451 curwin = wp; |
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1452 curbuf = curwin->w_buffer; |
6897 | 1453 if (!wp->w_p_diff) |
1454 { | |
1455 if (wp->w_p_diff_saved) | |
1456 free_string_option(wp->w_p_fdm_save); | |
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1457 wp->w_p_fdm_save = vim_strsave(wp->w_p_fdm); |
6897 | 1458 } |
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1459 set_string_option_direct((char_u *)"fdm", -1, (char_u *)"diff", |
694 | 1460 OPT_LOCAL|OPT_FREE, 0); |
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1461 curwin = old_curwin; |
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1462 curbuf = curwin->w_buffer; |
6897 | 1463 if (!wp->w_p_diff) |
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1464 { |
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1465 wp->w_p_fdc_save = wp->w_p_fdc; |
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1466 wp->w_p_fen_save = wp->w_p_fen; |
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1467 wp->w_p_fdl_save = wp->w_p_fdl; |
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1468 } |
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1469 wp->w_p_fdc = diff_foldcolumn; |
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1470 wp->w_p_fen = TRUE; |
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1471 wp->w_p_fdl = 0; |
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1472 foldUpdateAll(wp); |
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1473 /* make sure topline is not halfway a fold */ |
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1474 changed_window_setting_win(wp); |
7 | 1475 # endif |
1476 if (vim_strchr(p_sbo, 'h') == NULL) | |
1477 do_cmdline_cmd((char_u *)"set sbo+=hor"); | |
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1478 /* Save the current values, to be restored in ex_diffoff(). */ |
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1479 wp->w_p_diff_saved = TRUE; |
7 | 1480 |
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1481 set_diff_option(wp, TRUE); |
6897 | 1482 |
7 | 1483 if (addbuf) |
1484 diff_buf_add(wp->w_buffer); | |
1485 redraw_win_later(wp, NOT_VALID); | |
1486 } | |
1487 | |
1488 /* | |
16 | 1489 * Set options not to show diffs. For the current window or all windows. |
671 | 1490 * Only in the current tab page. |
16 | 1491 */ |
1492 void | |
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1493 ex_diffoff(exarg_T *eap) |
16 | 1494 { |
1495 win_T *wp; | |
1496 int diffwin = FALSE; | |
1497 | |
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1498 FOR_ALL_WINDOWS(wp) |
16 | 1499 { |
5358 | 1500 if (eap->forceit ? wp->w_p_diff : wp == curwin) |
16 | 1501 { |
6897 | 1502 /* Set 'diff' off. If option values were saved in |
1503 * diff_win_options(), restore the ones whose settings seem to have | |
1504 * been left over from diff mode. */ | |
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1505 set_diff_option(wp, FALSE); |
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1506 |
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1507 if (wp->w_p_diff_saved) |
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1508 { |
6897 | 1509 |
1510 if (wp->w_p_scb) | |
1511 wp->w_p_scb = wp->w_p_scb_save; | |
1512 if (wp->w_p_crb) | |
1513 wp->w_p_crb = wp->w_p_crb_save; | |
1514 if (!wp->w_p_wrap) | |
1515 wp->w_p_wrap = wp->w_p_wrap_save; | |
1516 #ifdef FEAT_FOLDING | |
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1517 free_string_option(wp->w_p_fdm); |
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1518 wp->w_p_fdm = vim_strsave( |
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1519 *wp->w_p_fdm_save ? wp->w_p_fdm_save : (char_u*)"manual"); |
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1520 |
6897 | 1521 if (wp->w_p_fdc == diff_foldcolumn) |
1522 wp->w_p_fdc = wp->w_p_fdc_save; | |
1523 if (wp->w_p_fdl == 0) | |
1524 wp->w_p_fdl = wp->w_p_fdl_save; | |
1525 | |
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1526 /* Only restore 'foldenable' when 'foldmethod' is not |
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1527 * "manual", otherwise we continue to show the diff folds. */ |
6897 | 1528 if (wp->w_p_fen) |
1529 wp->w_p_fen = foldmethodIsManual(wp) ? FALSE | |
1530 : wp->w_p_fen_save; | |
1531 | |
1532 foldUpdateAll(wp); | |
1533 #endif | |
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1534 } |
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1535 /* remove filler lines */ |
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1536 wp->w_topfill = 0; |
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1537 |
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1538 /* make sure topline is not halfway a fold and cursor is |
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1539 * invalidated */ |
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|
1540 changed_window_setting_win(wp); |
5200
b3ff17862b4c
updated for version 7.4a.026
Bram Moolenaar <bram@vim.org>
parents:
5102
diff
changeset
|
1541 |
5102
11d0c6df1d7b
updated for version 7.3.1294
Bram Moolenaar <bram@vim.org>
parents:
4352
diff
changeset
|
1542 /* Note: 'sbo' is not restored, it's a global option. */ |
16 | 1543 diff_buf_adjust(wp); |
1544 } | |
1545 diffwin |= wp->w_p_diff; | |
1546 } | |
1547 | |
10821
d9e48fb5142f
patch 8.0.0300: cannot stop diffing hidden buffers
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
1548 /* Also remove hidden buffers from the list. */ |
d9e48fb5142f
patch 8.0.0300: cannot stop diffing hidden buffers
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
1549 if (eap->forceit) |
d9e48fb5142f
patch 8.0.0300: cannot stop diffing hidden buffers
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
1550 diff_buf_clear(); |
d9e48fb5142f
patch 8.0.0300: cannot stop diffing hidden buffers
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
1551 |
16 | 1552 /* Remove "hor" from from 'scrollopt' if there are no diff windows left. */ |
1553 if (!diffwin && vim_strchr(p_sbo, 'h') != NULL) | |
1554 do_cmdline_cmd((char_u *)"set sbo-=hor"); | |
1555 } | |
1556 | |
1557 /* | |
7 | 1558 * Read the diff output and add each entry to the diff list. |
1559 */ | |
1560 static void | |
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1561 diff_read( |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
1562 int idx_orig, // idx of original file |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1563 int idx_new, // idx of new file |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
1564 diffout_T *dout) // diff output |
7 | 1565 { |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1566 FILE *fd = NULL; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1567 int line_idx = 0; |
7 | 1568 diff_T *dprev = NULL; |
672 | 1569 diff_T *dp = curtab->tp_first_diff; |
7 | 1570 diff_T *dn, *dpl; |
1571 char_u linebuf[LBUFLEN]; /* only need to hold the diff line */ | |
14696
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patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1572 char_u *line; |
7 | 1573 long off; |
1574 int i; | |
1575 linenr_T lnum_orig, lnum_new; | |
1576 long count_orig, count_new; | |
1577 int notset = TRUE; /* block "*dp" not set yet */ | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1578 enum { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1579 DIFF_ED, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1580 DIFF_UNIFIED, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1581 DIFF_NONE |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1582 } diffstyle = DIFF_NONE; |
7 | 1583 |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1584 if (dout->dout_fname == NULL) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1585 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1586 diffstyle = DIFF_UNIFIED; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1587 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1588 else |
7 | 1589 { |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1590 fd = mch_fopen((char *)dout->dout_fname, "r"); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1591 if (fd == NULL) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1592 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1593 EMSG(_("E98: Cannot read diff output")); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1594 return; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1595 } |
7 | 1596 } |
1597 | |
1598 for (;;) | |
1599 { | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1600 if (fd == NULL) |
7 | 1601 { |
14696
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patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1602 if (line_idx >= dout->dout_ga.ga_len) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
1603 break; // did last line |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1604 line = ((char_u **)dout->dout_ga.ga_data)[line_idx++]; |
7 | 1605 } |
1606 else | |
1607 { | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1608 if (tag_fgets(linebuf, LBUFLEN, fd)) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1609 break; // end of file |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1610 line = linebuf; |
7 | 1611 } |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1612 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1613 if (diffstyle == DIFF_NONE) |
7 | 1614 { |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1615 // Determine diff style. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1616 // ed like diff looks like this: |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1617 // {first}[,{last}]c{first}[,{last}] |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1618 // {first}a{first}[,{last}] |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1619 // {first}[,{last}]d{first} |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1620 // |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1621 // unified diff looks like this: |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1622 // --- file1 2018-03-20 13:23:35.783153140 +0100 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1623 // +++ file2 2018-03-20 13:23:41.183156066 +0100 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1624 // @@ -1,3 +1,5 @@ |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1625 if (isdigit(*line)) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1626 diffstyle = DIFF_ED; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1627 else if ((STRNCMP(line, "@@ ", 3) == 0)) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1628 diffstyle = DIFF_UNIFIED; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1629 else if ((STRNCMP(line, "--- ", 4) == 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1630 && (tag_fgets(linebuf, LBUFLEN, fd) == 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1631 && (STRNCMP(line, "+++ ", 4) == 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
1632 && (tag_fgets(linebuf, LBUFLEN, fd) == 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1633 && (STRNCMP(line, "@@ ", 3) == 0)) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
1634 diffstyle = DIFF_UNIFIED; |
14726
655f00c29c58
patch 8.1.0375: cannot use diff mode with Cygwin diff.exe
Christian Brabandt <cb@256bit.org>
parents:
14716
diff
changeset
|
1635 else |
655f00c29c58
patch 8.1.0375: cannot use diff mode with Cygwin diff.exe
Christian Brabandt <cb@256bit.org>
parents:
14716
diff
changeset
|
1636 // Format not recognized yet, skip over this line. Cygwin diff |
655f00c29c58
patch 8.1.0375: cannot use diff mode with Cygwin diff.exe
Christian Brabandt <cb@256bit.org>
parents:
14716
diff
changeset
|
1637 // may put a warning at the start of the file. |
655f00c29c58
patch 8.1.0375: cannot use diff mode with Cygwin diff.exe
Christian Brabandt <cb@256bit.org>
parents:
14716
diff
changeset
|
1638 continue; |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1639 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1640 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1641 if (diffstyle == DIFF_ED) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1642 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1643 if (!isdigit(*line)) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1644 continue; // not the start of a diff block |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
1645 if (parse_diff_ed(line, &lnum_orig, &count_orig, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1646 &lnum_new, &count_new) == FAIL) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1647 continue; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1648 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1649 else if (diffstyle == DIFF_UNIFIED) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1650 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1651 if (STRNCMP(line, "@@ ", 3) != 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1652 continue; // not the start of a diff block |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
1653 if (parse_diff_unified(line, &lnum_orig, &count_orig, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1654 &lnum_new, &count_new) == FAIL) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1655 continue; |
7 | 1656 } |
1657 else | |
1658 { | |
14696
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patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1659 EMSG(_("E959: Invalid diff format.")); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1660 break; |
7 | 1661 } |
1662 | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1663 // Go over blocks before the change, for which orig and new are equal. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1664 // Copy blocks from orig to new. |
7 | 1665 while (dp != NULL |
1666 && lnum_orig > dp->df_lnum[idx_orig] + dp->df_count[idx_orig]) | |
1667 { | |
1668 if (notset) | |
1669 diff_copy_entry(dprev, dp, idx_orig, idx_new); | |
1670 dprev = dp; | |
1671 dp = dp->df_next; | |
1672 notset = TRUE; | |
1673 } | |
1674 | |
1675 if (dp != NULL | |
1676 && lnum_orig <= dp->df_lnum[idx_orig] + dp->df_count[idx_orig] | |
1677 && lnum_orig + count_orig >= dp->df_lnum[idx_orig]) | |
1678 { | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1679 // New block overlaps with existing block(s). |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1680 // First find last block that overlaps. |
7 | 1681 for (dpl = dp; dpl->df_next != NULL; dpl = dpl->df_next) |
1682 if (lnum_orig + count_orig < dpl->df_next->df_lnum[idx_orig]) | |
1683 break; | |
1684 | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1685 // If the newly found block starts before the old one, set the |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1686 // start back a number of lines. |
7 | 1687 off = dp->df_lnum[idx_orig] - lnum_orig; |
1688 if (off > 0) | |
1689 { | |
1690 for (i = idx_orig; i < idx_new; ++i) | |
672 | 1691 if (curtab->tp_diffbuf[i] != NULL) |
7 | 1692 dp->df_lnum[i] -= off; |
1693 dp->df_lnum[idx_new] = lnum_new; | |
1694 dp->df_count[idx_new] = count_new; | |
1695 } | |
1696 else if (notset) | |
1697 { | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1698 // new block inside existing one, adjust new block |
7 | 1699 dp->df_lnum[idx_new] = lnum_new + off; |
1700 dp->df_count[idx_new] = count_new - off; | |
1701 } | |
1702 else | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
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changeset
|
1703 // second overlap of new block with existing block |
1519 | 1704 dp->df_count[idx_new] += count_new - count_orig |
1705 + dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig] | |
1706 - (dp->df_lnum[idx_orig] + dp->df_count[idx_orig]); | |
7 | 1707 |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
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changeset
|
1708 // Adjust the size of the block to include all the lines to the |
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1709 // end of the existing block or the new diff, whatever ends last. |
7 | 1710 off = (lnum_orig + count_orig) |
1711 - (dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig]); | |
1712 if (off < 0) | |
1713 { | |
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1714 // new change ends in existing block, adjust the end if not |
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1715 // done already |
7 | 1716 if (notset) |
1717 dp->df_count[idx_new] += -off; | |
1718 off = 0; | |
1719 } | |
1428 | 1720 for (i = idx_orig; i < idx_new; ++i) |
672 | 1721 if (curtab->tp_diffbuf[i] != NULL) |
7 | 1722 dp->df_count[i] = dpl->df_lnum[i] + dpl->df_count[i] |
1723 - dp->df_lnum[i] + off; | |
1724 | |
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1725 // Delete the diff blocks that have been merged into one. |
7 | 1726 dn = dp->df_next; |
1727 dp->df_next = dpl->df_next; | |
1728 while (dn != dp->df_next) | |
1729 { | |
1730 dpl = dn->df_next; | |
1731 vim_free(dn); | |
1732 dn = dpl; | |
1733 } | |
1734 } | |
1735 else | |
1736 { | |
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1737 // Allocate a new diffblock. |
672 | 1738 dp = diff_alloc_new(curtab, dprev, dp); |
7 | 1739 if (dp == NULL) |
840 | 1740 goto done; |
7 | 1741 |
1742 dp->df_lnum[idx_orig] = lnum_orig; | |
1743 dp->df_count[idx_orig] = count_orig; | |
1744 dp->df_lnum[idx_new] = lnum_new; | |
1745 dp->df_count[idx_new] = count_new; | |
1746 | |
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1747 // Set values for other buffers, these must be equal to the |
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1748 // original buffer, otherwise there would have been a change |
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1749 // already. |
7 | 1750 for (i = idx_orig + 1; i < idx_new; ++i) |
672 | 1751 if (curtab->tp_diffbuf[i] != NULL) |
7 | 1752 diff_copy_entry(dprev, dp, idx_orig, i); |
1753 } | |
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1754 notset = FALSE; // "*dp" has been set |
7 | 1755 } |
1756 | |
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1757 // for remaining diff blocks orig and new are equal |
7 | 1758 while (dp != NULL) |
1759 { | |
1760 if (notset) | |
1761 diff_copy_entry(dprev, dp, idx_orig, idx_new); | |
1762 dprev = dp; | |
1763 dp = dp->df_next; | |
1764 notset = TRUE; | |
1765 } | |
1766 | |
840 | 1767 done: |
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1768 if (fd != NULL) |
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1769 fclose(fd); |
7 | 1770 } |
1771 | |
1772 /* | |
1773 * Copy an entry at "dp" from "idx_orig" to "idx_new". | |
1774 */ | |
1775 static void | |
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1776 diff_copy_entry( |
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1777 diff_T *dprev, |
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1778 diff_T *dp, |
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1779 int idx_orig, |
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1780 int idx_new) |
7 | 1781 { |
1782 long off; | |
1783 | |
1784 if (dprev == NULL) | |
1785 off = 0; | |
1786 else | |
1787 off = (dprev->df_lnum[idx_orig] + dprev->df_count[idx_orig]) | |
1788 - (dprev->df_lnum[idx_new] + dprev->df_count[idx_new]); | |
1789 dp->df_lnum[idx_new] = dp->df_lnum[idx_orig] - off; | |
1790 dp->df_count[idx_new] = dp->df_count[idx_orig]; | |
1791 } | |
1792 | |
1793 /* | |
672 | 1794 * Clear the list of diffblocks for tab page "tp". |
7 | 1795 */ |
358 | 1796 void |
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1797 diff_clear(tabpage_T *tp) |
7 | 1798 { |
1799 diff_T *p, *next_p; | |
1800 | |
672 | 1801 for (p = tp->tp_first_diff; p != NULL; p = next_p) |
7 | 1802 { |
1803 next_p = p->df_next; | |
1804 vim_free(p); | |
1805 } | |
672 | 1806 tp->tp_first_diff = NULL; |
7 | 1807 } |
1808 | |
1809 /* | |
1810 * Check diff status for line "lnum" in buffer "buf": | |
1811 * Returns 0 for nothing special | |
1812 * Returns -1 for a line that should be highlighted as changed. | |
1813 * Returns -2 for a line that should be highlighted as added/deleted. | |
1814 * Returns > 0 for inserting that many filler lines above it (never happens | |
1815 * when 'diffopt' doesn't contain "filler"). | |
1816 * This should only be used for windows where 'diff' is set. | |
1817 */ | |
1818 int | |
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1819 diff_check(win_T *wp, linenr_T lnum) |
7 | 1820 { |
672 | 1821 int idx; /* index in tp_diffbuf[] for this buffer */ |
7 | 1822 diff_T *dp; |
1823 int maxcount; | |
1824 int i; | |
1825 buf_T *buf = wp->w_buffer; | |
1826 int cmp; | |
1827 | |
672 | 1828 if (curtab->tp_diff_invalid) |
7 | 1829 ex_diffupdate(NULL); /* update after a big change */ |
1830 | |
672 | 1831 if (curtab->tp_first_diff == NULL || !wp->w_p_diff) /* no diffs at all */ |
7 | 1832 return 0; |
1833 | |
1834 /* safety check: "lnum" must be a buffer line */ | |
1835 if (lnum < 1 || lnum > buf->b_ml.ml_line_count + 1) | |
1836 return 0; | |
1837 | |
1838 idx = diff_buf_idx(buf); | |
1839 if (idx == DB_COUNT) | |
1840 return 0; /* no diffs for buffer "buf" */ | |
1841 | |
1842 #ifdef FEAT_FOLDING | |
1843 /* A closed fold never has filler lines. */ | |
1844 if (hasFoldingWin(wp, lnum, NULL, NULL, TRUE, NULL)) | |
1845 return 0; | |
1846 #endif | |
1847 | |
1848 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
672 | 1849 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
7 | 1850 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx]) |
1851 break; | |
1852 if (dp == NULL || lnum < dp->df_lnum[idx]) | |
1853 return 0; | |
1854 | |
1855 if (lnum < dp->df_lnum[idx] + dp->df_count[idx]) | |
1856 { | |
1857 int zero = FALSE; | |
1858 | |
1859 /* Changed or inserted line. If the other buffers have a count of | |
1860 * zero, the lines were inserted. If the other buffers have the same | |
1861 * count, check if the lines are identical. */ | |
1862 cmp = FALSE; | |
1863 for (i = 0; i < DB_COUNT; ++i) | |
672 | 1864 if (i != idx && curtab->tp_diffbuf[i] != NULL) |
7 | 1865 { |
1866 if (dp->df_count[i] == 0) | |
1867 zero = TRUE; | |
1868 else | |
1869 { | |
1870 if (dp->df_count[i] != dp->df_count[idx]) | |
1871 return -1; /* nr of lines changed. */ | |
1872 cmp = TRUE; | |
1873 } | |
1874 } | |
1875 if (cmp) | |
1876 { | |
1877 /* Compare all lines. If they are equal the lines were inserted | |
1878 * in some buffers, deleted in others, but not changed. */ | |
1879 for (i = 0; i < DB_COUNT; ++i) | |
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1880 if (i != idx && curtab->tp_diffbuf[i] != NULL |
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1881 && dp->df_count[i] != 0) |
7 | 1882 if (!diff_equal_entry(dp, idx, i)) |
1883 return -1; | |
1884 } | |
1885 /* If there is no buffer with zero lines then there is no difference | |
1886 * any longer. Happens when making a change (or undo) that removes | |
1887 * the difference. Can't remove the entry here, we might be halfway | |
1888 * updating the window. Just report the text as unchanged. Other | |
1889 * windows might still show the change though. */ | |
1890 if (zero == FALSE) | |
1891 return 0; | |
1892 return -2; | |
1893 } | |
1894 | |
1895 /* If 'diffopt' doesn't contain "filler", return 0. */ | |
1896 if (!(diff_flags & DIFF_FILLER)) | |
1897 return 0; | |
1898 | |
1899 /* Insert filler lines above the line just below the change. Will return | |
1900 * 0 when this buf had the max count. */ | |
1901 maxcount = 0; | |
1902 for (i = 0; i < DB_COUNT; ++i) | |
672 | 1903 if (curtab->tp_diffbuf[i] != NULL && dp->df_count[i] > maxcount) |
7 | 1904 maxcount = dp->df_count[i]; |
1905 return maxcount - dp->df_count[idx]; | |
1906 } | |
1907 | |
1908 /* | |
1909 * Compare two entries in diff "*dp" and return TRUE if they are equal. | |
1910 */ | |
1911 static int | |
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1912 diff_equal_entry(diff_T *dp, int idx1, int idx2) |
7 | 1913 { |
1914 int i; | |
1915 char_u *line; | |
1916 int cmp; | |
1917 | |
1918 if (dp->df_count[idx1] != dp->df_count[idx2]) | |
1919 return FALSE; | |
672 | 1920 if (diff_check_sanity(curtab, dp) == FAIL) |
7 | 1921 return FALSE; |
1922 for (i = 0; i < dp->df_count[idx1]; ++i) | |
1923 { | |
672 | 1924 line = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx1], |
7 | 1925 dp->df_lnum[idx1] + i, FALSE)); |
1926 if (line == NULL) | |
1927 return FALSE; | |
672 | 1928 cmp = diff_cmp(line, ml_get_buf(curtab->tp_diffbuf[idx2], |
7 | 1929 dp->df_lnum[idx2] + i, FALSE)); |
1930 vim_free(line); | |
1931 if (cmp != 0) | |
1932 return FALSE; | |
1933 } | |
1934 return TRUE; | |
1935 } | |
1936 | |
1937 /* | |
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1938 * Compare the characters at "p1" and "p2". If they are equal (possibly |
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1939 * ignoring case) return TRUE and set "len" to the number of bytes. |
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1940 */ |
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1941 static int |
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1942 diff_equal_char(char_u *p1, char_u *p2, int *len) |
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1943 { |
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1944 #ifdef FEAT_MBYTE |
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1945 int l = (*mb_ptr2len)(p1); |
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1946 |
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1947 if (l != (*mb_ptr2len)(p2)) |
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1948 return FALSE; |
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1949 if (l > 1) |
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1950 { |
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1951 if (STRNCMP(p1, p2, l) != 0 |
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1952 && (!enc_utf8 |
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1953 || !(diff_flags & DIFF_ICASE) |
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1954 || utf_fold(utf_ptr2char(p1)) |
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1955 != utf_fold(utf_ptr2char(p2)))) |
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1956 return FALSE; |
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1957 *len = l; |
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1958 } |
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1959 else |
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1960 #endif |
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1961 { |
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1962 if ((*p1 != *p2) |
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1963 && (!(diff_flags & DIFF_ICASE) |
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1964 || TOLOWER_LOC(*p1) != TOLOWER_LOC(*p2))) |
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1965 return FALSE; |
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1966 *len = 1; |
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1967 } |
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1968 return TRUE; |
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1969 } |
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1970 |
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1971 /* |
7 | 1972 * Compare strings "s1" and "s2" according to 'diffopt'. |
1973 * Return non-zero when they are different. | |
1974 */ | |
1975 static int | |
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1976 diff_cmp(char_u *s1, char_u *s2) |
7 | 1977 { |
1978 char_u *p1, *p2; | |
1979 int l; | |
1980 | |
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1981 if ((diff_flags & DIFF_IBLANK) |
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1982 && (*skipwhite(s1) == NUL || *skipwhite(s2) == NUL)) |
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1983 return 0; |
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1984 |
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1985 if ((diff_flags & (DIFF_ICASE | ALL_WHITE_DIFF)) == 0) |
7 | 1986 return STRCMP(s1, s2); |
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1987 if ((diff_flags & DIFF_ICASE) && !(diff_flags & ALL_WHITE_DIFF)) |
7 | 1988 return MB_STRICMP(s1, s2); |
1989 | |
1990 p1 = s1; | |
1991 p2 = s2; | |
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1992 |
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1993 // Ignore white space changes and possibly ignore case. |
7 | 1994 while (*p1 != NUL && *p2 != NUL) |
1995 { | |
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1996 if (((diff_flags & DIFF_IWHITE) |
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1997 && VIM_ISWHITE(*p1) && VIM_ISWHITE(*p2)) |
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1998 || ((diff_flags & DIFF_IWHITEALL) |
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1999 && (VIM_ISWHITE(*p1) || VIM_ISWHITE(*p2)))) |
7 | 2000 { |
2001 p1 = skipwhite(p1); | |
2002 p2 = skipwhite(p2); | |
2003 } | |
2004 else | |
2005 { | |
12333
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2006 if (!diff_equal_char(p1, p2, &l)) |
7 | 2007 break; |
12333
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2008 p1 += l; |
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2009 p2 += l; |
7 | 2010 } |
2011 } | |
2012 | |
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2013 // Ignore trailing white space. |
7 | 2014 p1 = skipwhite(p1); |
2015 p2 = skipwhite(p2); | |
2016 if (*p1 != NUL || *p2 != NUL) | |
2017 return 1; | |
2018 return 0; | |
2019 } | |
2020 | |
2021 /* | |
2022 * Return the number of filler lines above "lnum". | |
2023 */ | |
2024 int | |
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2025 diff_check_fill(win_T *wp, linenr_T lnum) |
7 | 2026 { |
2027 int n; | |
2028 | |
2029 /* be quick when there are no filler lines */ | |
2030 if (!(diff_flags & DIFF_FILLER)) | |
2031 return 0; | |
2032 n = diff_check(wp, lnum); | |
2033 if (n <= 0) | |
2034 return 0; | |
2035 return n; | |
2036 } | |
2037 | |
2038 /* | |
2039 * Set the topline of "towin" to match the position in "fromwin", so that they | |
2040 * show the same diff'ed lines. | |
2041 */ | |
2042 void | |
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|
2043 diff_set_topline(win_T *fromwin, win_T *towin) |
7 | 2044 { |
1519 | 2045 buf_T *frombuf = fromwin->w_buffer; |
7 | 2046 linenr_T lnum = fromwin->w_topline; |
1519 | 2047 int fromidx; |
2048 int toidx; | |
7 | 2049 diff_T *dp; |
1519 | 2050 int max_count; |
7 | 2051 int i; |
2052 | |
1519 | 2053 fromidx = diff_buf_idx(frombuf); |
2054 if (fromidx == DB_COUNT) | |
7 | 2055 return; /* safety check */ |
2056 | |
672 | 2057 if (curtab->tp_diff_invalid) |
7 | 2058 ex_diffupdate(NULL); /* update after a big change */ |
2059 | |
2060 towin->w_topfill = 0; | |
2061 | |
2062 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
672 | 2063 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
1519 | 2064 if (lnum <= dp->df_lnum[fromidx] + dp->df_count[fromidx]) |
7 | 2065 break; |
2066 if (dp == NULL) | |
2067 { | |
2068 /* After last change, compute topline relative to end of file; no | |
2069 * filler lines. */ | |
2070 towin->w_topline = towin->w_buffer->b_ml.ml_line_count | |
1519 | 2071 - (frombuf->b_ml.ml_line_count - lnum); |
7 | 2072 } |
2073 else | |
2074 { | |
2075 /* Find index for "towin". */ | |
1519 | 2076 toidx = diff_buf_idx(towin->w_buffer); |
2077 if (toidx == DB_COUNT) | |
7 | 2078 return; /* safety check */ |
2079 | |
1519 | 2080 towin->w_topline = lnum + (dp->df_lnum[toidx] - dp->df_lnum[fromidx]); |
2081 if (lnum >= dp->df_lnum[fromidx]) | |
7 | 2082 { |
1519 | 2083 /* Inside a change: compute filler lines. With three or more |
2084 * buffers we need to know the largest count. */ | |
2085 max_count = 0; | |
2086 for (i = 0; i < DB_COUNT; ++i) | |
2087 if (curtab->tp_diffbuf[i] != NULL | |
2088 && max_count < dp->df_count[i]) | |
2089 max_count = dp->df_count[i]; | |
2090 | |
2091 if (dp->df_count[toidx] == dp->df_count[fromidx]) | |
2092 { | |
2093 /* same number of lines: use same filler count */ | |
7 | 2094 towin->w_topfill = fromwin->w_topfill; |
1519 | 2095 } |
2096 else if (dp->df_count[toidx] > dp->df_count[fromidx]) | |
7 | 2097 { |
1519 | 2098 if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx]) |
2099 { | |
2100 /* more lines in towin and fromwin doesn't show diff | |
2101 * lines, only filler lines */ | |
2102 if (max_count - fromwin->w_topfill >= dp->df_count[toidx]) | |
2103 { | |
2104 /* towin also only shows filler lines */ | |
2105 towin->w_topline = dp->df_lnum[toidx] | |
2106 + dp->df_count[toidx]; | |
2107 towin->w_topfill = fromwin->w_topfill; | |
2108 } | |
2109 else | |
2110 /* towin still has some diff lines to show */ | |
2111 towin->w_topline = dp->df_lnum[toidx] | |
2112 + max_count - fromwin->w_topfill; | |
2113 } | |
7 | 2114 } |
1519 | 2115 else if (towin->w_topline >= dp->df_lnum[toidx] |
2116 + dp->df_count[toidx]) | |
7 | 2117 { |
1519 | 2118 /* less lines in towin and no diff lines to show: compute |
2119 * filler lines */ | |
2120 towin->w_topline = dp->df_lnum[toidx] + dp->df_count[toidx]; | |
2121 if (diff_flags & DIFF_FILLER) | |
7 | 2122 { |
1519 | 2123 if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx]) |
2124 /* fromwin is also out of diff lines */ | |
2125 towin->w_topfill = fromwin->w_topfill; | |
2126 else | |
2127 /* fromwin has some diff lines */ | |
2128 towin->w_topfill = dp->df_lnum[fromidx] | |
2129 + max_count - lnum; | |
7 | 2130 } |
2131 } | |
2132 } | |
2133 } | |
2134 | |
2135 /* safety check (if diff info gets outdated strange things may happen) */ | |
2136 towin->w_botfill = FALSE; | |
2137 if (towin->w_topline > towin->w_buffer->b_ml.ml_line_count) | |
2138 { | |
2139 towin->w_topline = towin->w_buffer->b_ml.ml_line_count; | |
2140 towin->w_botfill = TRUE; | |
2141 } | |
2142 if (towin->w_topline < 1) | |
2143 { | |
2144 towin->w_topline = 1; | |
2145 towin->w_topfill = 0; | |
2146 } | |
2147 | |
2148 /* When w_topline changes need to recompute w_botline and cursor position */ | |
2149 invalidate_botline_win(towin); | |
2150 changed_line_abv_curs_win(towin); | |
2151 | |
2152 check_topfill(towin, FALSE); | |
2153 #ifdef FEAT_FOLDING | |
2154 (void)hasFoldingWin(towin, towin->w_topline, &towin->w_topline, | |
2155 NULL, TRUE, NULL); | |
2156 #endif | |
2157 } | |
2158 | |
2159 /* | |
2160 * This is called when 'diffopt' is changed. | |
2161 */ | |
2162 int | |
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2163 diffopt_changed(void) |
7 | 2164 { |
2165 char_u *p; | |
2166 int diff_context_new = 6; | |
2167 int diff_flags_new = 0; | |
764 | 2168 int diff_foldcolumn_new = 2; |
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2169 long diff_algorithm_new = 0; |
672 | 2170 tabpage_T *tp; |
7 | 2171 |
2172 p = p_dip; | |
2173 while (*p != NUL) | |
2174 { | |
2175 if (STRNCMP(p, "filler", 6) == 0) | |
2176 { | |
2177 p += 6; | |
2178 diff_flags_new |= DIFF_FILLER; | |
2179 } | |
2180 else if (STRNCMP(p, "context:", 8) == 0 && VIM_ISDIGIT(p[8])) | |
2181 { | |
2182 p += 8; | |
2183 diff_context_new = getdigits(&p); | |
2184 } | |
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2185 else if (STRNCMP(p, "iblank", 6) == 0) |
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2186 { |
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2187 p += 6; |
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2188 diff_flags_new |= DIFF_IBLANK; |
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2189 } |
7 | 2190 else if (STRNCMP(p, "icase", 5) == 0) |
2191 { | |
2192 p += 5; | |
2193 diff_flags_new |= DIFF_ICASE; | |
2194 } | |
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2195 else if (STRNCMP(p, "iwhiteall", 9) == 0) |
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2196 { |
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2197 p += 9; |
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2198 diff_flags_new |= DIFF_IWHITEALL; |
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2199 } |
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2200 else if (STRNCMP(p, "iwhiteeol", 9) == 0) |
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2201 { |
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2202 p += 9; |
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2203 diff_flags_new |= DIFF_IWHITEEOL; |
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2204 } |
7 | 2205 else if (STRNCMP(p, "iwhite", 6) == 0) |
2206 { | |
2207 p += 6; | |
2208 diff_flags_new |= DIFF_IWHITE; | |
2209 } | |
764 | 2210 else if (STRNCMP(p, "horizontal", 10) == 0) |
2211 { | |
2212 p += 10; | |
2213 diff_flags_new |= DIFF_HORIZONTAL; | |
2214 } | |
2215 else if (STRNCMP(p, "vertical", 8) == 0) | |
2216 { | |
2217 p += 8; | |
2218 diff_flags_new |= DIFF_VERTICAL; | |
2219 } | |
2220 else if (STRNCMP(p, "foldcolumn:", 11) == 0 && VIM_ISDIGIT(p[11])) | |
2221 { | |
2222 p += 11; | |
2223 diff_foldcolumn_new = getdigits(&p); | |
2224 } | |
12971
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2225 else if (STRNCMP(p, "hiddenoff", 9) == 0) |
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2226 { |
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|
2227 p += 9; |
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|
2228 diff_flags_new |= DIFF_HIDDEN_OFF; |
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2229 } |
14696
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|
2230 else if (STRNCMP(p, "indent-heuristic", 16) == 0) |
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2231 { |
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2232 p += 16; |
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2233 diff_algorithm_new |= XDF_INDENT_HEURISTIC; |
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2234 } |
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2235 else if (STRNCMP(p, "internal", 8) == 0) |
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2236 { |
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2237 p += 8; |
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2238 diff_flags_new |= DIFF_INTERNAL; |
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2239 } |
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2240 else if (STRNCMP(p, "algorithm:", 10) == 0) |
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2241 { |
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2242 p += 10; |
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2243 if (STRNCMP(p, "myers", 5) == 0) |
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2244 { |
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2245 p += 5; |
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2246 diff_algorithm_new = 0; |
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2247 } |
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2248 else if (STRNCMP(p, "minimal", 7) == 0) |
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2249 { |
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2250 p += 7; |
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2251 diff_algorithm_new = XDF_NEED_MINIMAL; |
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2252 } |
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2253 else if (STRNCMP(p, "patience", 8) == 0) |
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2254 { |
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2255 p += 8; |
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2256 diff_algorithm_new = XDF_PATIENCE_DIFF; |
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2257 } |
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|
2258 else if (STRNCMP(p, "histogram", 9) == 0) |
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2259 { |
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2260 p += 9; |
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|
2261 diff_algorithm_new = XDF_HISTOGRAM_DIFF; |
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2262 } |
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2263 } |
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|
2264 |
7 | 2265 if (*p != ',' && *p != NUL) |
2266 return FAIL; | |
2267 if (*p == ',') | |
2268 ++p; | |
2269 } | |
2270 | |
764 | 2271 /* Can't have both "horizontal" and "vertical". */ |
2272 if ((diff_flags_new & DIFF_HORIZONTAL) && (diff_flags_new & DIFF_VERTICAL)) | |
2273 return FAIL; | |
2274 | |
7 | 2275 /* If "icase" or "iwhite" was added or removed, need to update the diff. */ |
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changeset
|
2276 if (diff_flags != diff_flags_new || diff_algorithm != diff_algorithm_new) |
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|
2277 FOR_ALL_TABPAGES(tp) |
672 | 2278 tp->tp_diff_invalid = TRUE; |
7 | 2279 |
2280 diff_flags = diff_flags_new; | |
2281 diff_context = diff_context_new; | |
764 | 2282 diff_foldcolumn = diff_foldcolumn_new; |
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2283 diff_algorithm = diff_algorithm_new; |
7 | 2284 |
2285 diff_redraw(TRUE); | |
2286 | |
2287 /* recompute the scroll binding with the new option value, may | |
2288 * remove or add filler lines */ | |
2289 check_scrollbind((linenr_T)0, 0L); | |
2290 | |
2291 return OK; | |
2292 } | |
2293 | |
2294 /* | |
764 | 2295 * Return TRUE if 'diffopt' contains "horizontal". |
2296 */ | |
2297 int | |
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changeset
|
2298 diffopt_horizontal(void) |
764 | 2299 { |
2300 return (diff_flags & DIFF_HORIZONTAL) != 0; | |
2301 } | |
2302 | |
2303 /* | |
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2304 * Return TRUE if 'diffopt' contains "hiddenoff". |
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2305 */ |
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2306 int |
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2307 diffopt_hiddenoff(void) |
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|
2308 { |
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|
2309 return (diff_flags & DIFF_HIDDEN_OFF) != 0; |
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|
2310 } |
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|
2311 |
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|
2312 /* |
7 | 2313 * Find the difference within a changed line. |
2314 * Returns TRUE if the line was added, no other buffer has it. | |
2315 */ | |
2316 int | |
7817
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|
2317 diff_find_change( |
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changeset
|
2318 win_T *wp, |
83861277e6a3
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|
2319 linenr_T lnum, |
83861277e6a3
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diff
changeset
|
2320 int *startp, /* first char of the change */ |
83861277e6a3
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changeset
|
2321 int *endp) /* last char of the change */ |
7 | 2322 { |
2323 char_u *line_org; | |
2324 char_u *line_new; | |
2325 int i; | |
829 | 2326 int si_org, si_new; |
2327 int ei_org, ei_new; | |
7 | 2328 diff_T *dp; |
2329 int idx; | |
2330 int off; | |
2331 int added = TRUE; | |
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2332 char_u *p1, *p2; |
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|
2333 int l; |
7 | 2334 |
2335 /* Make a copy of the line, the next ml_get() will invalidate it. */ | |
2336 line_org = vim_strsave(ml_get_buf(wp->w_buffer, lnum, FALSE)); | |
2337 if (line_org == NULL) | |
2338 return FALSE; | |
2339 | |
2340 idx = diff_buf_idx(wp->w_buffer); | |
2341 if (idx == DB_COUNT) /* cannot happen */ | |
1074 | 2342 { |
2343 vim_free(line_org); | |
7 | 2344 return FALSE; |
1074 | 2345 } |
7 | 2346 |
2347 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
672 | 2348 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
7 | 2349 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx]) |
2350 break; | |
672 | 2351 if (dp == NULL || diff_check_sanity(curtab, dp) == FAIL) |
1074 | 2352 { |
2353 vim_free(line_org); | |
7 | 2354 return FALSE; |
1074 | 2355 } |
7 | 2356 |
2357 off = lnum - dp->df_lnum[idx]; | |
2358 | |
2359 for (i = 0; i < DB_COUNT; ++i) | |
672 | 2360 if (curtab->tp_diffbuf[i] != NULL && i != idx) |
7 | 2361 { |
2362 /* Skip lines that are not in the other change (filler lines). */ | |
2363 if (off >= dp->df_count[i]) | |
2364 continue; | |
2365 added = FALSE; | |
829 | 2366 line_new = ml_get_buf(curtab->tp_diffbuf[i], |
2367 dp->df_lnum[i] + off, FALSE); | |
7 | 2368 |
2369 /* Search for start of difference */ | |
829 | 2370 si_org = si_new = 0; |
2371 while (line_org[si_org] != NUL) | |
2372 { | |
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|
2373 if (((diff_flags & DIFF_IWHITE) |
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|
2374 && VIM_ISWHITE(line_org[si_org]) |
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|
2375 && VIM_ISWHITE(line_new[si_new])) |
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|
2376 || ((diff_flags & DIFF_IWHITEALL) |
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changeset
|
2377 && (VIM_ISWHITE(line_org[si_org]) |
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changeset
|
2378 || VIM_ISWHITE(line_new[si_new])))) |
829 | 2379 { |
835 | 2380 si_org = (int)(skipwhite(line_org + si_org) - line_org); |
2381 si_new = (int)(skipwhite(line_new + si_new) - line_new); | |
829 | 2382 } |
2383 else | |
2384 { | |
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changeset
|
2385 if (!diff_equal_char(line_org + si_org, line_new + si_new, |
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|
2386 &l)) |
829 | 2387 break; |
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|
2388 si_org += l; |
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changeset
|
2389 si_new += l; |
829 | 2390 } |
2391 } | |
7 | 2392 #ifdef FEAT_MBYTE |
2393 if (has_mbyte) | |
2394 { | |
2395 /* Move back to first byte of character in both lines (may | |
2396 * have "nn^" in line_org and "n^ in line_new). */ | |
829 | 2397 si_org -= (*mb_head_off)(line_org, line_org + si_org); |
2398 si_new -= (*mb_head_off)(line_new, line_new + si_new); | |
7 | 2399 } |
2400 #endif | |
829 | 2401 if (*startp > si_org) |
2402 *startp = si_org; | |
7 | 2403 |
2404 /* Search for end of difference, if any. */ | |
829 | 2405 if (line_org[si_org] != NUL || line_new[si_new] != NUL) |
7 | 2406 { |
2407 ei_org = (int)STRLEN(line_org); | |
2408 ei_new = (int)STRLEN(line_new); | |
829 | 2409 while (ei_org >= *startp && ei_new >= si_new |
2410 && ei_org >= 0 && ei_new >= 0) | |
7 | 2411 { |
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|
2412 if (((diff_flags & DIFF_IWHITE) |
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|
2413 && VIM_ISWHITE(line_org[ei_org]) |
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changeset
|
2414 && VIM_ISWHITE(line_new[ei_new])) |
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changeset
|
2415 || ((diff_flags & DIFF_IWHITEALL) |
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changeset
|
2416 && (VIM_ISWHITE(line_org[ei_org]) |
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changeset
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2417 || VIM_ISWHITE(line_new[ei_new])))) |
829 | 2418 { |
2419 while (ei_org >= *startp | |
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2420 && VIM_ISWHITE(line_org[ei_org])) |
829 | 2421 --ei_org; |
2422 while (ei_new >= si_new | |
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changeset
|
2423 && VIM_ISWHITE(line_new[ei_new])) |
829 | 2424 --ei_new; |
2425 } | |
2426 else | |
2427 { | |
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|
2428 p1 = line_org + ei_org; |
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changeset
|
2429 p2 = line_new + ei_new; |
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changeset
|
2430 #ifdef FEAT_MBYTE |
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changeset
|
2431 p1 -= (*mb_head_off)(line_org, p1); |
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changeset
|
2432 p2 -= (*mb_head_off)(line_new, p2); |
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|
2433 #endif |
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changeset
|
2434 if (!diff_equal_char(p1, p2, &l)) |
829 | 2435 break; |
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changeset
|
2436 ei_org -= l; |
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diff
changeset
|
2437 ei_new -= l; |
829 | 2438 } |
7 | 2439 } |
2440 if (*endp < ei_org) | |
2441 *endp = ei_org; | |
2442 } | |
2443 } | |
2444 | |
2445 vim_free(line_org); | |
2446 return added; | |
2447 } | |
2448 | |
2449 #if defined(FEAT_FOLDING) || defined(PROTO) | |
2450 /* | |
2451 * Return TRUE if line "lnum" is not close to a diff block, this line should | |
2452 * be in a fold. | |
2453 * Return FALSE if there are no diff blocks at all in this window. | |
2454 */ | |
2455 int | |
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7799
diff
changeset
|
2456 diff_infold(win_T *wp, linenr_T lnum) |
7 | 2457 { |
2458 int i; | |
2459 int idx = -1; | |
2460 int other = FALSE; | |
2461 diff_T *dp; | |
2462 | |
2463 /* Return if 'diff' isn't set. */ | |
2464 if (!wp->w_p_diff) | |
2465 return FALSE; | |
2466 | |
2467 for (i = 0; i < DB_COUNT; ++i) | |
2468 { | |
672 | 2469 if (curtab->tp_diffbuf[i] == wp->w_buffer) |
7 | 2470 idx = i; |
672 | 2471 else if (curtab->tp_diffbuf[i] != NULL) |
7 | 2472 other = TRUE; |
2473 } | |
2474 | |
2475 /* return here if there are no diffs in the window */ | |
2476 if (idx == -1 || !other) | |
2477 return FALSE; | |
2478 | |
672 | 2479 if (curtab->tp_diff_invalid) |
7 | 2480 ex_diffupdate(NULL); /* update after a big change */ |
2481 | |
2482 /* Return if there are no diff blocks. All lines will be folded. */ | |
672 | 2483 if (curtab->tp_first_diff == NULL) |
7 | 2484 return TRUE; |
2485 | |
672 | 2486 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
7 | 2487 { |
2488 /* If this change is below the line there can't be any further match. */ | |
2489 if (dp->df_lnum[idx] - diff_context > lnum) | |
2490 break; | |
2491 /* If this change ends before the line we have a match. */ | |
2492 if (dp->df_lnum[idx] + dp->df_count[idx] + diff_context > lnum) | |
2493 return FALSE; | |
2494 } | |
2495 return TRUE; | |
2496 } | |
2497 #endif | |
2498 | |
2499 /* | |
2500 * "dp" and "do" commands. | |
2501 */ | |
2502 void | |
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diff
changeset
|
2503 nv_diffgetput(int put, long count) |
7 | 2504 { |
2505 exarg_T ea; | |
6314 | 2506 char_u buf[30]; |
7 | 2507 |
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diff
changeset
|
2508 #ifdef FEAT_JOB_CHANNEL |
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diff
changeset
|
2509 if (bt_prompt(curbuf)) |
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changeset
|
2510 { |
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diff
changeset
|
2511 vim_beep(BO_OPER); |
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changeset
|
2512 return; |
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changeset
|
2513 } |
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|
2514 #endif |
6314 | 2515 if (count == 0) |
2516 ea.arg = (char_u *)""; | |
2517 else | |
2518 { | |
2519 vim_snprintf((char *)buf, 30, "%ld", count); | |
2520 ea.arg = buf; | |
2521 } | |
7 | 2522 if (put) |
2523 ea.cmdidx = CMD_diffput; | |
2524 else | |
2525 ea.cmdidx = CMD_diffget; | |
2526 ea.addr_count = 0; | |
2527 ea.line1 = curwin->w_cursor.lnum; | |
2528 ea.line2 = curwin->w_cursor.lnum; | |
2529 ex_diffgetput(&ea); | |
2530 } | |
2531 | |
2532 /* | |
2533 * ":diffget" | |
2534 * ":diffput" | |
2535 */ | |
2536 void | |
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diff
changeset
|
2537 ex_diffgetput(exarg_T *eap) |
7 | 2538 { |
2539 linenr_T lnum; | |
2540 int count; | |
2541 linenr_T off = 0; | |
2542 diff_T *dp; | |
2543 diff_T *dprev; | |
2544 diff_T *dfree; | |
2545 int idx_cur; | |
2546 int idx_other; | |
2547 int idx_from; | |
2548 int idx_to; | |
2549 int i; | |
2550 int added; | |
2551 char_u *p; | |
2552 aco_save_T aco; | |
2553 buf_T *buf; | |
2554 int start_skip, end_skip; | |
2555 int new_count; | |
648 | 2556 int buf_empty; |
1075 | 2557 int found_not_ma = FALSE; |
7 | 2558 |
2559 /* Find the current buffer in the list of diff buffers. */ | |
2560 idx_cur = diff_buf_idx(curbuf); | |
2561 if (idx_cur == DB_COUNT) | |
2562 { | |
2563 EMSG(_("E99: Current buffer is not in diff mode")); | |
2564 return; | |
2565 } | |
2566 | |
2567 if (*eap->arg == NUL) | |
2568 { | |
2569 /* No argument: Find the other buffer in the list of diff buffers. */ | |
2570 for (idx_other = 0; idx_other < DB_COUNT; ++idx_other) | |
672 | 2571 if (curtab->tp_diffbuf[idx_other] != curbuf |
1075 | 2572 && curtab->tp_diffbuf[idx_other] != NULL) |
2573 { | |
2574 if (eap->cmdidx != CMD_diffput | |
2575 || curtab->tp_diffbuf[idx_other]->b_p_ma) | |
2576 break; | |
2577 found_not_ma = TRUE; | |
2578 } | |
7 | 2579 if (idx_other == DB_COUNT) |
2580 { | |
1075 | 2581 if (found_not_ma) |
2582 EMSG(_("E793: No other buffer in diff mode is modifiable")); | |
2583 else | |
2584 EMSG(_("E100: No other buffer in diff mode")); | |
7 | 2585 return; |
2586 } | |
2587 | |
2588 /* Check that there isn't a third buffer in the list */ | |
2589 for (i = idx_other + 1; i < DB_COUNT; ++i) | |
672 | 2590 if (curtab->tp_diffbuf[i] != curbuf |
2591 && curtab->tp_diffbuf[i] != NULL | |
2592 && (eap->cmdidx != CMD_diffput || curtab->tp_diffbuf[i]->b_p_ma)) | |
7 | 2593 { |
2594 EMSG(_("E101: More than two buffers in diff mode, don't know which one to use")); | |
2595 return; | |
2596 } | |
2597 } | |
2598 else | |
2599 { | |
2600 /* Buffer number or pattern given. Ignore trailing white space. */ | |
2601 p = eap->arg + STRLEN(eap->arg); | |
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changeset
|
2602 while (p > eap->arg && VIM_ISWHITE(p[-1])) |
7 | 2603 --p; |
2604 for (i = 0; vim_isdigit(eap->arg[i]) && eap->arg + i < p; ++i) | |
2605 ; | |
2606 if (eap->arg + i == p) /* digits only */ | |
2607 i = atol((char *)eap->arg); | |
2608 else | |
2609 { | |
4236 | 2610 i = buflist_findpat(eap->arg, p, FALSE, TRUE, FALSE); |
7 | 2611 if (i < 0) |
2612 return; /* error message already given */ | |
2613 } | |
2614 buf = buflist_findnr(i); | |
2615 if (buf == NULL) | |
2616 { | |
2617 EMSG2(_("E102: Can't find buffer \"%s\""), eap->arg); | |
2618 return; | |
2619 } | |
1788 | 2620 if (buf == curbuf) |
2621 return; /* nothing to do */ | |
7 | 2622 idx_other = diff_buf_idx(buf); |
2623 if (idx_other == DB_COUNT) | |
2624 { | |
2625 EMSG2(_("E103: Buffer \"%s\" is not in diff mode"), eap->arg); | |
2626 return; | |
2627 } | |
2628 } | |
2629 | |
2630 diff_busy = TRUE; | |
2631 | |
2632 /* When no range given include the line above or below the cursor. */ | |
2633 if (eap->addr_count == 0) | |
2634 { | |
2635 /* Make it possible that ":diffget" on the last line gets line below | |
2636 * the cursor line when there is no difference above the cursor. */ | |
2637 if (eap->cmdidx == CMD_diffget | |
2638 && eap->line1 == curbuf->b_ml.ml_line_count | |
2639 && diff_check(curwin, eap->line1) == 0 | |
2640 && (eap->line1 == 1 || diff_check(curwin, eap->line1 - 1) == 0)) | |
2641 ++eap->line2; | |
2642 else if (eap->line1 > 0) | |
2643 --eap->line1; | |
2644 } | |
2645 | |
2646 if (eap->cmdidx == CMD_diffget) | |
2647 { | |
2648 idx_from = idx_other; | |
2649 idx_to = idx_cur; | |
2650 } | |
2651 else | |
2652 { | |
2653 idx_from = idx_cur; | |
2654 idx_to = idx_other; | |
2655 /* Need to make the other buffer the current buffer to be able to make | |
2656 * changes in it. */ | |
2657 /* set curwin/curbuf to buf and save a few things */ | |
672 | 2658 aucmd_prepbuf(&aco, curtab->tp_diffbuf[idx_other]); |
7 | 2659 } |
2660 | |
819 | 2661 /* May give the warning for a changed buffer here, which can trigger the |
2662 * FileChangedRO autocommand, which may do nasty things and mess | |
2663 * everything up. */ | |
2664 if (!curbuf->b_changed) | |
2665 { | |
2666 change_warning(0); | |
2667 if (diff_buf_idx(curbuf) != idx_to) | |
2668 { | |
2669 EMSG(_("E787: Buffer changed unexpectedly")); | |
14776
09c1f241e2f7
patch 8.1.0400: using freed memory with :diffget
Christian Brabandt <cb@256bit.org>
parents:
14770
diff
changeset
|
2670 goto theend; |
819 | 2671 } |
2672 } | |
2673 | |
7 | 2674 dprev = NULL; |
672 | 2675 for (dp = curtab->tp_first_diff; dp != NULL; ) |
7 | 2676 { |
2677 if (dp->df_lnum[idx_cur] > eap->line2 + off) | |
2678 break; /* past the range that was specified */ | |
2679 | |
2680 dfree = NULL; | |
2681 lnum = dp->df_lnum[idx_to]; | |
2682 count = dp->df_count[idx_to]; | |
2683 if (dp->df_lnum[idx_cur] + dp->df_count[idx_cur] > eap->line1 + off | |
2684 && u_save(lnum - 1, lnum + count) != FAIL) | |
2685 { | |
2686 /* Inside the specified range and saving for undo worked. */ | |
2687 start_skip = 0; | |
2688 end_skip = 0; | |
2689 if (eap->addr_count > 0) | |
2690 { | |
2691 /* A range was specified: check if lines need to be skipped. */ | |
2692 start_skip = eap->line1 + off - dp->df_lnum[idx_cur]; | |
2693 if (start_skip > 0) | |
2694 { | |
2695 /* range starts below start of current diff block */ | |
2696 if (start_skip > count) | |
2697 { | |
2698 lnum += count; | |
2699 count = 0; | |
2700 } | |
2701 else | |
2702 { | |
2703 count -= start_skip; | |
2704 lnum += start_skip; | |
2705 } | |
2706 } | |
2707 else | |
2708 start_skip = 0; | |
2709 | |
2710 end_skip = dp->df_lnum[idx_cur] + dp->df_count[idx_cur] - 1 | |
2711 - (eap->line2 + off); | |
2712 if (end_skip > 0) | |
2713 { | |
2714 /* range ends above end of current/from diff block */ | |
2715 if (idx_cur == idx_from) /* :diffput */ | |
2716 { | |
2717 i = dp->df_count[idx_cur] - start_skip - end_skip; | |
2718 if (count > i) | |
2719 count = i; | |
2720 } | |
2721 else /* :diffget */ | |
2722 { | |
2723 count -= end_skip; | |
2724 end_skip = dp->df_count[idx_from] - start_skip - count; | |
2725 if (end_skip < 0) | |
2726 end_skip = 0; | |
2727 } | |
2728 } | |
2729 else | |
2730 end_skip = 0; | |
2731 } | |
2732 | |
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11113
diff
changeset
|
2733 buf_empty = BUFEMPTY(); |
7 | 2734 added = 0; |
2735 for (i = 0; i < count; ++i) | |
2736 { | |
648 | 2737 /* remember deleting the last line of the buffer */ |
2738 buf_empty = curbuf->b_ml.ml_line_count == 1; | |
7 | 2739 ml_delete(lnum, FALSE); |
2740 --added; | |
2741 } | |
2742 for (i = 0; i < dp->df_count[idx_from] - start_skip - end_skip; ++i) | |
2743 { | |
2744 linenr_T nr; | |
2745 | |
2746 nr = dp->df_lnum[idx_from] + start_skip + i; | |
672 | 2747 if (nr > curtab->tp_diffbuf[idx_from]->b_ml.ml_line_count) |
7 | 2748 break; |
819 | 2749 p = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx_from], |
2750 nr, FALSE)); | |
7 | 2751 if (p != NULL) |
2752 { | |
2753 ml_append(lnum + i - 1, p, 0, FALSE); | |
2754 vim_free(p); | |
2755 ++added; | |
648 | 2756 if (buf_empty && curbuf->b_ml.ml_line_count == 2) |
2757 { | |
2758 /* Added the first line into an empty buffer, need to | |
2759 * delete the dummy empty line. */ | |
2760 buf_empty = FALSE; | |
2761 ml_delete((linenr_T)2, FALSE); | |
2762 } | |
7 | 2763 } |
2764 } | |
2765 new_count = dp->df_count[idx_to] + added; | |
2766 dp->df_count[idx_to] = new_count; | |
2767 | |
2768 if (start_skip == 0 && end_skip == 0) | |
2769 { | |
2770 /* Check if there are any other buffers and if the diff is | |
2771 * equal in them. */ | |
2772 for (i = 0; i < DB_COUNT; ++i) | |
819 | 2773 if (curtab->tp_diffbuf[i] != NULL && i != idx_from |
2774 && i != idx_to | |
7 | 2775 && !diff_equal_entry(dp, idx_from, i)) |
2776 break; | |
2777 if (i == DB_COUNT) | |
2778 { | |
2779 /* delete the diff entry, the buffers are now equal here */ | |
2780 dfree = dp; | |
2781 dp = dp->df_next; | |
2782 if (dprev == NULL) | |
672 | 2783 curtab->tp_first_diff = dp; |
7 | 2784 else |
2785 dprev->df_next = dp; | |
2786 } | |
2787 } | |
2788 | |
2789 /* Adjust marks. This will change the following entries! */ | |
2790 if (added != 0) | |
2791 { | |
2792 mark_adjust(lnum, lnum + count - 1, (long)MAXLNUM, (long)added); | |
2793 if (curwin->w_cursor.lnum >= lnum) | |
2794 { | |
2795 /* Adjust the cursor position if it's in/after the changed | |
2796 * lines. */ | |
2797 if (curwin->w_cursor.lnum >= lnum + count) | |
2798 curwin->w_cursor.lnum += added; | |
2799 else if (added < 0) | |
2800 curwin->w_cursor.lnum = lnum; | |
2801 } | |
2802 } | |
2803 changed_lines(lnum, 0, lnum + count, (long)added); | |
2804 | |
2805 if (dfree != NULL) | |
2806 { | |
2807 /* Diff is deleted, update folds in other windows. */ | |
2808 #ifdef FEAT_FOLDING | |
2809 diff_fold_update(dfree, idx_to); | |
2810 #endif | |
2811 vim_free(dfree); | |
2812 } | |
2813 else | |
2814 /* mark_adjust() may have changed the count in a wrong way */ | |
2815 dp->df_count[idx_to] = new_count; | |
2816 | |
2817 /* When changing the current buffer, keep track of line numbers */ | |
2818 if (idx_cur == idx_to) | |
2819 off += added; | |
2820 } | |
2821 | |
2822 /* If before the range or not deleted, go to next diff. */ | |
2823 if (dfree == NULL) | |
2824 { | |
2825 dprev = dp; | |
2826 dp = dp->df_next; | |
2827 } | |
2828 } | |
2829 | |
2830 /* restore curwin/curbuf and a few other things */ | |
2445
04dae202d316
Fixes for coverity warnings.
Bram Moolenaar <bram@vim.org>
parents:
2250
diff
changeset
|
2831 if (eap->cmdidx != CMD_diffget) |
7 | 2832 { |
2833 /* Syncing undo only works for the current buffer, but we change | |
2834 * another buffer. Sync undo if the command was typed. This isn't | |
2835 * 100% right when ":diffput" is used in a function or mapping. */ | |
2836 if (KeyTyped) | |
825 | 2837 u_sync(FALSE); |
7 | 2838 aucmd_restbuf(&aco); |
2839 } | |
2840 | |
14776
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patch 8.1.0400: using freed memory with :diffget
Christian Brabandt <cb@256bit.org>
parents:
14770
diff
changeset
|
2841 theend: |
7 | 2842 diff_busy = FALSE; |
14776
09c1f241e2f7
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parents:
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diff
changeset
|
2843 if (diff_need_update) |
09c1f241e2f7
patch 8.1.0400: using freed memory with :diffget
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parents:
14770
diff
changeset
|
2844 { |
09c1f241e2f7
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parents:
14770
diff
changeset
|
2845 diff_need_update = FALSE; |
09c1f241e2f7
patch 8.1.0400: using freed memory with :diffget
Christian Brabandt <cb@256bit.org>
parents:
14770
diff
changeset
|
2846 ex_diffupdate(NULL); |
09c1f241e2f7
patch 8.1.0400: using freed memory with :diffget
Christian Brabandt <cb@256bit.org>
parents:
14770
diff
changeset
|
2847 } |
7 | 2848 |
2849 /* Check that the cursor is on a valid character and update it's position. | |
2850 * When there were filler lines the topline has become invalid. */ | |
2851 check_cursor(); | |
2852 changed_line_abv_curs(); | |
2853 | |
2854 /* Also need to redraw the other buffers. */ | |
2855 diff_redraw(FALSE); | |
2856 } | |
2857 | |
2858 #ifdef FEAT_FOLDING | |
2859 /* | |
2860 * Update folds for all diff buffers for entry "dp". | |
2861 * Skip buffer with index "skip_idx". | |
2862 * When there are no diffs, all folds are removed. | |
2863 */ | |
2864 static void | |
7817
83861277e6a3
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2865 diff_fold_update(diff_T *dp, int skip_idx) |
7 | 2866 { |
2867 int i; | |
2868 win_T *wp; | |
2869 | |
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9487
diff
changeset
|
2870 FOR_ALL_WINDOWS(wp) |
7 | 2871 for (i = 0; i < DB_COUNT; ++i) |
672 | 2872 if (curtab->tp_diffbuf[i] == wp->w_buffer && i != skip_idx) |
7 | 2873 foldUpdate(wp, dp->df_lnum[i], |
2874 dp->df_lnum[i] + dp->df_count[i]); | |
2875 } | |
2876 #endif | |
2877 | |
2878 /* | |
2879 * Return TRUE if buffer "buf" is in diff-mode. | |
2880 */ | |
2881 int | |
7817
83861277e6a3
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2882 diff_mode_buf(buf_T *buf) |
7 | 2883 { |
672 | 2884 tabpage_T *tp; |
2885 | |
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9487
diff
changeset
|
2886 FOR_ALL_TABPAGES(tp) |
672 | 2887 if (diff_buf_idx_tp(buf, tp) != DB_COUNT) |
2888 return TRUE; | |
2889 return FALSE; | |
7 | 2890 } |
2891 | |
2892 /* | |
2893 * Move "count" times in direction "dir" to the next diff block. | |
2894 * Return FAIL if there isn't such a diff block. | |
2895 */ | |
2896 int | |
7817
83861277e6a3
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2897 diff_move_to(int dir, long count) |
7 | 2898 { |
2899 int idx; | |
2900 linenr_T lnum = curwin->w_cursor.lnum; | |
2901 diff_T *dp; | |
2902 | |
2903 idx = diff_buf_idx(curbuf); | |
672 | 2904 if (idx == DB_COUNT || curtab->tp_first_diff == NULL) |
7 | 2905 return FAIL; |
2906 | |
672 | 2907 if (curtab->tp_diff_invalid) |
7 | 2908 ex_diffupdate(NULL); /* update after a big change */ |
2909 | |
672 | 2910 if (curtab->tp_first_diff == NULL) /* no diffs today */ |
7 | 2911 return FAIL; |
2912 | |
2913 while (--count >= 0) | |
2914 { | |
2915 /* Check if already before first diff. */ | |
672 | 2916 if (dir == BACKWARD && lnum <= curtab->tp_first_diff->df_lnum[idx]) |
7 | 2917 break; |
2918 | |
672 | 2919 for (dp = curtab->tp_first_diff; ; dp = dp->df_next) |
7 | 2920 { |
2921 if (dp == NULL) | |
2922 break; | |
2923 if ((dir == FORWARD && lnum < dp->df_lnum[idx]) | |
2924 || (dir == BACKWARD | |
2925 && (dp->df_next == NULL | |
2926 || lnum <= dp->df_next->df_lnum[idx]))) | |
2927 { | |
2928 lnum = dp->df_lnum[idx]; | |
2929 break; | |
2930 } | |
2931 } | |
2932 } | |
2933 | |
2934 /* don't end up past the end of the file */ | |
2935 if (lnum > curbuf->b_ml.ml_line_count) | |
2936 lnum = curbuf->b_ml.ml_line_count; | |
2937 | |
2938 /* When the cursor didn't move at all we fail. */ | |
2939 if (lnum == curwin->w_cursor.lnum) | |
2940 return FAIL; | |
2941 | |
2942 setpcmark(); | |
2943 curwin->w_cursor.lnum = lnum; | |
2944 curwin->w_cursor.col = 0; | |
2945 | |
2946 return OK; | |
2947 } | |
2948 | |
10295
d0b74b18e4b5
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2949 /* |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2950 * Return the line number in the current window that is closest to "lnum1" in |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2951 * "buf1" in diff mode. |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2952 */ |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2953 static linenr_T |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2954 diff_get_corresponding_line_int( |
7817
83861277e6a3
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2955 buf_T *buf1, |
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2956 linenr_T lnum1) |
2250
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diff
changeset
|
2957 { |
1bac28a53fae
Add the conceal patch from Vince Negri.
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parents:
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diff
changeset
|
2958 int idx1; |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2959 int idx2; |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2960 diff_T *dp; |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2961 int baseline = 0; |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2962 |
1bac28a53fae
Add the conceal patch from Vince Negri.
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parents:
2086
diff
changeset
|
2963 idx1 = diff_buf_idx(buf1); |
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2964 idx2 = diff_buf_idx(curbuf); |
2250
1bac28a53fae
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diff
changeset
|
2965 if (idx1 == DB_COUNT || idx2 == DB_COUNT || curtab->tp_first_diff == NULL) |
1bac28a53fae
Add the conceal patch from Vince Negri.
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parents:
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diff
changeset
|
2966 return lnum1; |
1bac28a53fae
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2967 |
1bac28a53fae
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parents:
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diff
changeset
|
2968 if (curtab->tp_diff_invalid) |
1bac28a53fae
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2969 ex_diffupdate(NULL); /* update after a big change */ |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2970 |
1bac28a53fae
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parents:
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diff
changeset
|
2971 if (curtab->tp_first_diff == NULL) /* no diffs today */ |
1bac28a53fae
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parents:
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diff
changeset
|
2972 return lnum1; |
1bac28a53fae
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parents:
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diff
changeset
|
2973 |
1bac28a53fae
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parents:
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diff
changeset
|
2974 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
1bac28a53fae
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parents:
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diff
changeset
|
2975 { |
1bac28a53fae
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diff
changeset
|
2976 if (dp->df_lnum[idx1] > lnum1) |
10295
d0b74b18e4b5
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2977 return lnum1 - baseline; |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2978 if ((dp->df_lnum[idx1] + dp->df_count[idx1]) > lnum1) |
2250
1bac28a53fae
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diff
changeset
|
2979 { |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2980 /* Inside the diffblock */ |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2981 baseline = lnum1 - dp->df_lnum[idx1]; |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2982 if (baseline > dp->df_count[idx2]) |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2983 baseline = dp->df_count[idx2]; |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2984 |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2985 return dp->df_lnum[idx2] + baseline; |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2986 } |
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2987 if ( (dp->df_lnum[idx1] == lnum1) |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2988 && (dp->df_count[idx1] == 0) |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2989 && (dp->df_lnum[idx2] <= curwin->w_cursor.lnum) |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2990 && ((dp->df_lnum[idx2] + dp->df_count[idx2]) |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2991 > curwin->w_cursor.lnum)) |
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2992 /* |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2993 * Special case: if the cursor is just after a zero-count |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2994 * block (i.e. all filler) and the target cursor is already |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2995 * inside the corresponding block, leave the target cursor |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2996 * unmoved. This makes repeated CTRL-W W operations work |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2997 * as expected. |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2998 */ |
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2999 return curwin->w_cursor.lnum; |
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3000 baseline = (dp->df_lnum[idx1] + dp->df_count[idx1]) |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3001 - (dp->df_lnum[idx2] + dp->df_count[idx2]); |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3002 } |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3003 |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3004 /* If we get here then the cursor is after the last diff */ |
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3005 return lnum1 - baseline; |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3006 } |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3007 |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3008 /* |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3009 * Return the line number in the current window that is closest to "lnum1" in |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3010 * "buf1" in diff mode. Checks the line number to be valid. |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3011 */ |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3012 linenr_T |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3013 diff_get_corresponding_line(buf_T *buf1, linenr_T lnum1) |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3014 { |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3015 linenr_T lnum = diff_get_corresponding_line_int(buf1, lnum1); |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3016 |
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3017 /* don't end up past the end of the file */ |
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3018 if (lnum > curbuf->b_ml.ml_line_count) |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3019 return curbuf->b_ml.ml_line_count; |
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3020 return lnum; |
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3021 } |
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
3022 |
7 | 3023 /* |
3024 * For line "lnum" in the current window find the equivalent lnum in window | |
3025 * "wp", compensating for inserted/deleted lines. | |
3026 */ | |
3027 linenr_T | |
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
3028 diff_lnum_win(linenr_T lnum, win_T *wp) |
7 | 3029 { |
3030 diff_T *dp; | |
3031 int idx; | |
3032 int i; | |
3033 linenr_T n; | |
3034 | |
3035 idx = diff_buf_idx(curbuf); | |
3036 if (idx == DB_COUNT) /* safety check */ | |
3037 return (linenr_T)0; | |
3038 | |
672 | 3039 if (curtab->tp_diff_invalid) |
7 | 3040 ex_diffupdate(NULL); /* update after a big change */ |
3041 | |
3042 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
672 | 3043 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
7 | 3044 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx]) |
3045 break; | |
3046 | |
3047 /* When after the last change, compute relative to the last line number. */ | |
3048 if (dp == NULL) | |
3049 return wp->w_buffer->b_ml.ml_line_count | |
3050 - (curbuf->b_ml.ml_line_count - lnum); | |
3051 | |
3052 /* Find index for "wp". */ | |
3053 i = diff_buf_idx(wp->w_buffer); | |
3054 if (i == DB_COUNT) /* safety check */ | |
3055 return (linenr_T)0; | |
3056 | |
3057 n = lnum + (dp->df_lnum[i] - dp->df_lnum[idx]); | |
3058 if (n > dp->df_lnum[i] + dp->df_count[i]) | |
3059 n = dp->df_lnum[i] + dp->df_count[i]; | |
3060 return n; | |
3061 } | |
3062 | |
14696
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3063 /* |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3064 * Handle an ED style diff line. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3065 * Return FAIL if the line does not contain diff info. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3066 */ |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3067 static int |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3068 parse_diff_ed( |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3069 char_u *line, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3070 linenr_T *lnum_orig, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3071 long *count_orig, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3072 linenr_T *lnum_new, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3073 long *count_new) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3074 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3075 char_u *p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3076 long f1, l1, f2, l2; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3077 int difftype; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3078 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3079 // The line must be one of three formats: |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3080 // change: {first}[,{last}]c{first}[,{last}] |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3081 // append: {first}a{first}[,{last}] |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3082 // delete: {first}[,{last}]d{first} |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3083 p = line; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3084 f1 = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3085 if (*p == ',') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3086 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3087 ++p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3088 l1 = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3089 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3090 else |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3091 l1 = f1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3092 if (*p != 'a' && *p != 'c' && *p != 'd') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3093 return FAIL; // invalid diff format |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3094 difftype = *p++; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3095 f2 = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3096 if (*p == ',') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3097 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3098 ++p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3099 l2 = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3100 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3101 else |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3102 l2 = f2; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3103 if (l1 < f1 || l2 < f2) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3104 return FAIL; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3105 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3106 if (difftype == 'a') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3107 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3108 *lnum_orig = f1 + 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3109 *count_orig = 0; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3110 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3111 else |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3112 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3113 *lnum_orig = f1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3114 *count_orig = l1 - f1 + 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3115 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3116 if (difftype == 'd') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3117 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3118 *lnum_new = f2 + 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3119 *count_new = 0; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3120 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3121 else |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3122 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3123 *lnum_new = f2; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3124 *count_new = l2 - f2 + 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3125 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3126 return OK; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3127 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3128 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3129 /* |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3130 * Parses unified diff with zero(!) context lines. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3131 * Return FAIL if there is no diff information in "line". |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3132 */ |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3133 static int |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3134 parse_diff_unified( |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3135 char_u *line, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3136 linenr_T *lnum_orig, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3137 long *count_orig, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3138 linenr_T *lnum_new, |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3139 long *count_new) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3140 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3141 char_u *p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3142 long oldline, oldcount, newline, newcount; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3143 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3144 // Parse unified diff hunk header: |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3145 // @@ -oldline,oldcount +newline,newcount @@ |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3146 p = line; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3147 if (*p++ == '@' && *p++ == '@' && *p++ == ' ' && *p++ == '-') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3148 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3149 oldline = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3150 if (*p == ',') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3151 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3152 ++p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3153 oldcount = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3154 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3155 else |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3156 oldcount = 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3157 if (*p++ == ' ' && *p++ == '+') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3158 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3159 newline = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3160 if (*p == ',') |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3161 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3162 ++p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3163 newcount = getdigits(&p); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3164 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3165 else |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3166 newcount = 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3167 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3168 else |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3169 return FAIL; // invalid diff format |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3170 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3171 if (oldcount == 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3172 oldline += 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3173 if (newcount == 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3174 newline += 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3175 if (newline == 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3176 newline = 1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3177 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3178 *lnum_orig = oldline; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3179 *count_orig = oldcount; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3180 *lnum_new = newline; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3181 *count_new = newcount; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3182 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3183 return OK; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3184 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3185 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3186 return FAIL; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3187 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3188 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3189 /* |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3190 * Callback function for the xdl_diff() function. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3191 * Stores the diff output in a grow array. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3192 */ |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3193 static int |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3194 xdiff_out(void *priv, mmbuffer_t *mb, int nbuf) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3195 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3196 diffout_T *dout = (diffout_T *)priv; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3197 int i; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3198 char_u *p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3199 |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3200 for (i = 0; i < nbuf; i++) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3201 { |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3202 // We are only interested in the header lines, skip text lines. |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3203 if (STRNCMP(mb[i].ptr, "@@ ", 3) != 0) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3204 continue; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3205 if (ga_grow(&dout->dout_ga, 1) == FAIL) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3206 return -1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3207 p = vim_strnsave((char_u *)mb[i].ptr, mb[i].size); |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3208 if (p == NULL) |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3209 return -1; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3210 ((char_u **)dout->dout_ga.ga_data)[dout->dout_ga.ga_len++] = p; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3211 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3212 return 0; |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3213 } |
195e8b1fcbbf
patch 8.1.0360: using an external diff program is slow and inflexible
Christian Brabandt <cb@256bit.org>
parents:
14019
diff
changeset
|
3214 |
7 | 3215 #endif /* FEAT_DIFF */ |