Mercurial > vim
annotate src/diff.c @ 11261:afa323d6b143
Added tag v8.0.0516 for changeset a7b7b21071c6ce1be69e9823ca002dfebb57f1e3
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Wed, 29 Mar 2017 13:15:06 +0200 |
| parents | f4ea50924c6d |
| children | eba1a8c6e21d |
| rev | line source |
|---|---|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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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. |
| 7 | 12 */ |
| 13 | |
| 14 #include "vim.h" | |
| 15 | |
| 16 #if defined(FEAT_DIFF) || defined(PROTO) | |
| 17 | |
| 18 static int diff_busy = FALSE; /* ex_diffgetput() is busy */ | |
| 19 | |
| 20 /* flags obtained from the 'diffopt' option */ | |
| 21 #define DIFF_FILLER 1 /* display filler lines */ | |
| 22 #define DIFF_ICASE 2 /* ignore case */ | |
| 23 #define DIFF_IWHITE 4 /* ignore change in white space */ | |
| 764 | 24 #define DIFF_HORIZONTAL 8 /* horizontal splits */ |
| 25 #define DIFF_VERTICAL 16 /* vertical splits */ | |
| 7 | 26 static int diff_flags = DIFF_FILLER; |
| 27 | |
| 28 #define LBUFLEN 50 /* length of line in diff file */ | |
| 29 | |
| 30 static int diff_a_works = MAYBE; /* TRUE when "diff -a" works, FALSE when it | |
| 31 doesn't work, MAYBE when not checked yet */ | |
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32 #if defined(MSWIN) |
| 7 | 33 static int diff_bin_works = MAYBE; /* TRUE when "diff --binary" works, FALSE |
| 34 when it doesn't work, MAYBE when not | |
| 35 checked yet */ | |
| 36 #endif | |
| 37 | |
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38 static int diff_buf_idx(buf_T *buf); |
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39 static int diff_buf_idx_tp(buf_T *buf, tabpage_T *tp); |
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40 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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41 static void diff_check_unchanged(tabpage_T *tp, diff_T *dp); |
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42 static int diff_check_sanity(tabpage_T *tp, diff_T *dp); |
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43 static void diff_redraw(int dofold); |
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44 static int diff_write(buf_T *buf, char_u *fname); |
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45 static void diff_file(char_u *tmp_orig, char_u *tmp_new, char_u *tmp_diff); |
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46 static int diff_equal_entry(diff_T *dp, int idx1, int idx2); |
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47 static int diff_cmp(char_u *s1, char_u *s2); |
| 7 | 48 #ifdef FEAT_FOLDING |
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49 static void diff_fold_update(diff_T *dp, int skip_idx); |
| 7 | 50 #endif |
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51 static void diff_read(int idx_orig, int idx_new, char_u *fname); |
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52 static void diff_copy_entry(diff_T *dprev, diff_T *dp, int idx_orig, int idx_new); |
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53 static diff_T *diff_alloc_new(tabpage_T *tp, diff_T *dprev, diff_T *dp); |
| 7 | 54 |
| 55 #ifndef USE_CR | |
| 56 # define tag_fgets vim_fgets | |
| 57 #endif | |
| 58 | |
| 59 /* | |
| 60 * Called when deleting or unloading a buffer: No longer make a diff with it. | |
| 61 */ | |
| 62 void | |
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63 diff_buf_delete(buf_T *buf) |
| 7 | 64 { |
| 65 int i; | |
| 672 | 66 tabpage_T *tp; |
| 7 | 67 |
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68 FOR_ALL_TABPAGES(tp) |
| 7 | 69 { |
| 672 | 70 i = diff_buf_idx_tp(buf, tp); |
| 71 if (i != DB_COUNT) | |
| 72 { | |
| 73 tp->tp_diffbuf[i] = NULL; | |
| 74 tp->tp_diff_invalid = TRUE; | |
| 1761 | 75 if (tp == curtab) |
| 76 diff_redraw(TRUE); | |
| 672 | 77 } |
| 7 | 78 } |
| 79 } | |
| 80 | |
| 81 /* | |
| 16 | 82 * Check if the current buffer should be added to or removed from the list of |
| 83 * diff buffers. | |
| 84 */ | |
| 85 void | |
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86 diff_buf_adjust(win_T *win) |
| 16 | 87 { |
| 88 win_T *wp; | |
| 672 | 89 int i; |
| 16 | 90 |
| 91 if (!win->w_p_diff) | |
| 92 { | |
| 93 /* When there is no window showing a diff for this buffer, remove | |
| 94 * it from the diffs. */ | |
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95 FOR_ALL_WINDOWS(wp) |
| 16 | 96 if (wp->w_buffer == win->w_buffer && wp->w_p_diff) |
| 97 break; | |
| 98 if (wp == NULL) | |
| 672 | 99 { |
| 100 i = diff_buf_idx(win->w_buffer); | |
| 101 if (i != DB_COUNT) | |
| 102 { | |
| 103 curtab->tp_diffbuf[i] = NULL; | |
| 104 curtab->tp_diff_invalid = TRUE; | |
| 1761 | 105 diff_redraw(TRUE); |
| 672 | 106 } |
| 107 } | |
| 16 | 108 } |
| 109 else | |
| 110 diff_buf_add(win->w_buffer); | |
| 111 } | |
| 112 | |
| 113 /* | |
| 7 | 114 * Add a buffer to make diffs for. |
| 672 | 115 * Call this when a new buffer is being edited in the current window where |
| 116 * 'diff' is set. | |
| 1788 | 117 * Marks the current buffer as being part of the diff and requiring updating. |
| 672 | 118 * This must be done before any autocmd, because a command may use info |
| 119 * about the screen contents. | |
| 7 | 120 */ |
| 121 void | |
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122 diff_buf_add(buf_T *buf) |
| 7 | 123 { |
| 124 int i; | |
| 125 | |
| 126 if (diff_buf_idx(buf) != DB_COUNT) | |
| 127 return; /* It's already there. */ | |
| 128 | |
| 129 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 130 if (curtab->tp_diffbuf[i] == NULL) |
| 7 | 131 { |
| 672 | 132 curtab->tp_diffbuf[i] = buf; |
| 133 curtab->tp_diff_invalid = TRUE; | |
| 1761 | 134 diff_redraw(TRUE); |
| 7 | 135 return; |
| 136 } | |
| 137 | |
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138 EMSGN(_("E96: Cannot diff more than %ld buffers"), DB_COUNT); |
| 7 | 139 } |
| 140 | |
| 141 /* | |
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142 * Remove all buffers to make diffs for. |
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143 */ |
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144 static void |
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145 diff_buf_clear(void) |
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146 { |
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147 int i; |
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148 |
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149 for (i = 0; i < DB_COUNT; ++i) |
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150 if (curtab->tp_diffbuf[i] != NULL) |
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151 { |
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152 curtab->tp_diffbuf[i] = NULL; |
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153 curtab->tp_diff_invalid = TRUE; |
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154 diff_redraw(TRUE); |
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155 } |
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156 } |
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157 |
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158 /* |
| 672 | 159 * Find buffer "buf" in the list of diff buffers for the current tab page. |
| 7 | 160 * Return its index or DB_COUNT if not found. |
| 161 */ | |
| 162 static int | |
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163 diff_buf_idx(buf_T *buf) |
| 7 | 164 { |
| 165 int idx; | |
| 166 | |
| 167 for (idx = 0; idx < DB_COUNT; ++idx) | |
| 672 | 168 if (curtab->tp_diffbuf[idx] == buf) |
| 169 break; | |
| 170 return idx; | |
| 171 } | |
| 172 | |
| 173 /* | |
| 174 * Find buffer "buf" in the list of diff buffers for tab page "tp". | |
| 175 * Return its index or DB_COUNT if not found. | |
| 176 */ | |
| 177 static int | |
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178 diff_buf_idx_tp(buf_T *buf, tabpage_T *tp) |
| 672 | 179 { |
| 180 int idx; | |
| 181 | |
| 182 for (idx = 0; idx < DB_COUNT; ++idx) | |
| 183 if (tp->tp_diffbuf[idx] == buf) | |
| 7 | 184 break; |
| 185 return idx; | |
| 186 } | |
| 187 | |
| 188 /* | |
| 672 | 189 * Mark the diff info involving buffer "buf" as invalid, it will be updated |
| 190 * when info is requested. | |
| 7 | 191 */ |
| 192 void | |
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193 diff_invalidate(buf_T *buf) |
| 7 | 194 { |
| 672 | 195 tabpage_T *tp; |
| 196 int i; | |
| 197 | |
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198 FOR_ALL_TABPAGES(tp) |
| 7 | 199 { |
| 672 | 200 i = diff_buf_idx_tp(buf, tp); |
| 201 if (i != DB_COUNT) | |
| 202 { | |
| 203 tp->tp_diff_invalid = TRUE; | |
| 204 if (tp == curtab) | |
| 205 diff_redraw(TRUE); | |
| 206 } | |
| 7 | 207 } |
| 208 } | |
| 209 | |
| 210 /* | |
| 672 | 211 * Called by mark_adjust(): update line numbers in "curbuf". |
| 7 | 212 */ |
| 213 void | |
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214 diff_mark_adjust( |
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215 linenr_T line1, |
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216 linenr_T line2, |
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217 long amount, |
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218 long amount_after) |
| 7 | 219 { |
| 672 | 220 int idx; |
| 221 tabpage_T *tp; | |
| 222 | |
| 223 /* Handle all tab pages that use the current buffer in a diff. */ | |
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224 FOR_ALL_TABPAGES(tp) |
| 672 | 225 { |
| 226 idx = diff_buf_idx_tp(curbuf, tp); | |
| 227 if (idx != DB_COUNT) | |
| 228 diff_mark_adjust_tp(tp, idx, line1, line2, amount, amount_after); | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 /* | |
| 233 * Update line numbers in tab page "tp" for "curbuf" with index "idx". | |
| 234 * This attempts to update the changes as much as possible: | |
| 235 * When inserting/deleting lines outside of existing change blocks, create a | |
| 236 * new change block and update the line numbers in following blocks. | |
| 237 * When inserting/deleting lines in existing change blocks, update them. | |
| 238 */ | |
| 239 static void | |
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240 diff_mark_adjust_tp( |
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241 tabpage_T *tp, |
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242 int idx, |
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243 linenr_T line1, |
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244 linenr_T line2, |
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245 long amount, |
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246 long amount_after) |
| 672 | 247 { |
| 7 | 248 diff_T *dp; |
| 249 diff_T *dprev; | |
| 250 diff_T *dnext; | |
| 251 int i; | |
| 252 int inserted, deleted; | |
| 253 int n, off; | |
| 254 linenr_T last; | |
| 255 linenr_T lnum_deleted = line1; /* lnum of remaining deletion */ | |
| 256 int check_unchanged; | |
| 257 | |
| 258 if (line2 == MAXLNUM) | |
| 259 { | |
| 260 /* mark_adjust(99, MAXLNUM, 9, 0): insert lines */ | |
| 261 inserted = amount; | |
| 262 deleted = 0; | |
| 263 } | |
| 264 else if (amount_after > 0) | |
| 265 { | |
| 266 /* mark_adjust(99, 98, MAXLNUM, 9): a change that inserts lines*/ | |
| 267 inserted = amount_after; | |
| 268 deleted = 0; | |
| 269 } | |
| 270 else | |
| 271 { | |
| 272 /* mark_adjust(98, 99, MAXLNUM, -2): delete lines */ | |
| 273 inserted = 0; | |
| 274 deleted = -amount_after; | |
| 275 } | |
| 276 | |
| 277 dprev = NULL; | |
| 672 | 278 dp = tp->tp_first_diff; |
| 7 | 279 for (;;) |
| 280 { | |
| 281 /* If the change is after the previous diff block and before the next | |
| 282 * diff block, thus not touching an existing change, create a new diff | |
| 283 * block. Don't do this when ex_diffgetput() is busy. */ | |
| 284 if ((dp == NULL || dp->df_lnum[idx] - 1 > line2 | |
| 285 || (line2 == MAXLNUM && dp->df_lnum[idx] > line1)) | |
| 286 && (dprev == NULL | |
| 287 || dprev->df_lnum[idx] + dprev->df_count[idx] < line1) | |
| 288 && !diff_busy) | |
| 289 { | |
| 672 | 290 dnext = diff_alloc_new(tp, dprev, dp); |
| 7 | 291 if (dnext == NULL) |
| 292 return; | |
| 293 | |
| 294 dnext->df_lnum[idx] = line1; | |
| 295 dnext->df_count[idx] = inserted; | |
| 296 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 297 if (tp->tp_diffbuf[i] != NULL && i != idx) |
| 7 | 298 { |
| 299 if (dprev == NULL) | |
| 300 dnext->df_lnum[i] = line1; | |
| 301 else | |
| 302 dnext->df_lnum[i] = line1 | |
| 303 + (dprev->df_lnum[i] + dprev->df_count[i]) | |
| 304 - (dprev->df_lnum[idx] + dprev->df_count[idx]); | |
| 305 dnext->df_count[i] = deleted; | |
| 306 } | |
| 307 } | |
| 308 | |
| 309 /* if at end of the list, quit */ | |
| 310 if (dp == NULL) | |
| 311 break; | |
| 312 | |
| 313 /* | |
| 314 * Check for these situations: | |
| 315 * 1 2 3 | |
| 316 * 1 2 3 | |
| 317 * line1 2 3 4 5 | |
| 318 * 2 3 4 5 | |
| 319 * 2 3 4 5 | |
| 320 * line2 2 3 4 5 | |
| 321 * 3 5 6 | |
| 322 * 3 5 6 | |
| 323 */ | |
| 324 /* compute last line of this change */ | |
| 325 last = dp->df_lnum[idx] + dp->df_count[idx] - 1; | |
| 326 | |
| 327 /* 1. change completely above line1: nothing to do */ | |
| 328 if (last >= line1 - 1) | |
| 329 { | |
| 330 /* 6. change below line2: only adjust for amount_after; also when | |
| 331 * "deleted" became zero when deleted all lines between two diffs */ | |
| 332 if (dp->df_lnum[idx] - (deleted + inserted != 0) > line2) | |
| 333 { | |
| 334 if (amount_after == 0) | |
| 335 break; /* nothing left to change */ | |
| 336 dp->df_lnum[idx] += amount_after; | |
| 337 } | |
| 338 else | |
| 339 { | |
| 340 check_unchanged = FALSE; | |
| 341 | |
| 342 /* 2. 3. 4. 5.: inserted/deleted lines touching this diff. */ | |
| 343 if (deleted > 0) | |
| 344 { | |
| 345 if (dp->df_lnum[idx] >= line1) | |
| 346 { | |
| 347 off = dp->df_lnum[idx] - lnum_deleted; | |
| 348 if (last <= line2) | |
| 349 { | |
| 350 /* 4. delete all lines of diff */ | |
| 351 if (dp->df_next != NULL | |
| 352 && dp->df_next->df_lnum[idx] - 1 <= line2) | |
| 353 { | |
| 354 /* delete continues in next diff, only do | |
| 355 * lines until that one */ | |
| 356 n = dp->df_next->df_lnum[idx] - lnum_deleted; | |
| 357 deleted -= n; | |
| 358 n -= dp->df_count[idx]; | |
| 359 lnum_deleted = dp->df_next->df_lnum[idx]; | |
| 360 } | |
| 361 else | |
| 362 n = deleted - dp->df_count[idx]; | |
| 363 dp->df_count[idx] = 0; | |
| 364 } | |
| 365 else | |
| 366 { | |
| 367 /* 5. delete lines at or just before top of diff */ | |
| 368 n = off; | |
| 369 dp->df_count[idx] -= line2 - dp->df_lnum[idx] + 1; | |
| 370 check_unchanged = TRUE; | |
| 371 } | |
| 372 dp->df_lnum[idx] = line1; | |
| 373 } | |
| 374 else | |
| 375 { | |
| 376 off = 0; | |
| 377 if (last < line2) | |
| 378 { | |
| 379 /* 2. delete at end of of diff */ | |
| 380 dp->df_count[idx] -= last - lnum_deleted + 1; | |
| 381 if (dp->df_next != NULL | |
| 382 && dp->df_next->df_lnum[idx] - 1 <= line2) | |
| 383 { | |
| 384 /* delete continues in next diff, only do | |
| 385 * lines until that one */ | |
| 386 n = dp->df_next->df_lnum[idx] - 1 - last; | |
| 387 deleted -= dp->df_next->df_lnum[idx] | |
| 388 - lnum_deleted; | |
| 389 lnum_deleted = dp->df_next->df_lnum[idx]; | |
| 390 } | |
| 391 else | |
| 392 n = line2 - last; | |
| 393 check_unchanged = TRUE; | |
| 394 } | |
| 395 else | |
| 396 { | |
| 397 /* 3. delete lines inside the diff */ | |
| 398 n = 0; | |
| 399 dp->df_count[idx] -= deleted; | |
| 400 } | |
| 401 } | |
| 402 | |
| 403 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 404 if (tp->tp_diffbuf[i] != NULL && i != idx) |
| 7 | 405 { |
| 406 dp->df_lnum[i] -= off; | |
| 407 dp->df_count[i] += n; | |
| 408 } | |
| 409 } | |
| 410 else | |
| 411 { | |
| 412 if (dp->df_lnum[idx] <= line1) | |
| 413 { | |
| 414 /* inserted lines somewhere in this diff */ | |
| 415 dp->df_count[idx] += inserted; | |
| 416 check_unchanged = TRUE; | |
| 417 } | |
| 418 else | |
| 419 /* inserted lines somewhere above this diff */ | |
| 420 dp->df_lnum[idx] += inserted; | |
| 421 } | |
| 422 | |
| 423 if (check_unchanged) | |
| 424 /* Check if inserted lines are equal, may reduce the | |
| 425 * size of the diff. TODO: also check for equal lines | |
| 426 * in the middle and perhaps split the block. */ | |
| 672 | 427 diff_check_unchanged(tp, dp); |
| 7 | 428 } |
| 429 } | |
| 430 | |
| 431 /* check if this block touches the previous one, may merge them. */ | |
| 432 if (dprev != NULL && dprev->df_lnum[idx] + dprev->df_count[idx] | |
| 433 == dp->df_lnum[idx]) | |
| 434 { | |
| 435 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 436 if (tp->tp_diffbuf[i] != NULL) |
| 7 | 437 dprev->df_count[i] += dp->df_count[i]; |
| 438 dprev->df_next = dp->df_next; | |
| 439 vim_free(dp); | |
| 440 dp = dprev->df_next; | |
| 441 } | |
| 442 else | |
| 443 { | |
| 444 /* Advance to next entry. */ | |
| 445 dprev = dp; | |
| 446 dp = dp->df_next; | |
| 447 } | |
| 448 } | |
| 449 | |
| 450 dprev = NULL; | |
| 672 | 451 dp = tp->tp_first_diff; |
| 7 | 452 while (dp != NULL) |
| 453 { | |
| 454 /* All counts are zero, remove this entry. */ | |
| 455 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 456 if (tp->tp_diffbuf[i] != NULL && dp->df_count[i] != 0) |
| 7 | 457 break; |
| 458 if (i == DB_COUNT) | |
| 459 { | |
| 460 dnext = dp->df_next; | |
| 461 vim_free(dp); | |
| 462 dp = dnext; | |
| 463 if (dprev == NULL) | |
| 672 | 464 tp->tp_first_diff = dnext; |
| 7 | 465 else |
| 466 dprev->df_next = dnext; | |
| 467 } | |
| 468 else | |
| 469 { | |
| 470 /* Advance to next entry. */ | |
| 471 dprev = dp; | |
| 472 dp = dp->df_next; | |
| 473 } | |
| 474 | |
| 475 } | |
| 672 | 476 |
| 477 if (tp == curtab) | |
| 478 { | |
| 479 diff_redraw(TRUE); | |
| 7 | 480 |
| 672 | 481 /* Need to recompute the scroll binding, may remove or add filler |
| 482 * lines (e.g., when adding lines above w_topline). But it's slow when | |
| 483 * making many changes, postpone until redrawing. */ | |
| 484 diff_need_scrollbind = TRUE; | |
| 485 } | |
| 7 | 486 } |
| 487 | |
| 488 /* | |
| 489 * Allocate a new diff block and link it between "dprev" and "dp". | |
| 490 */ | |
| 491 static diff_T * | |
|
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492 diff_alloc_new(tabpage_T *tp, diff_T *dprev, diff_T *dp) |
| 7 | 493 { |
| 494 diff_T *dnew; | |
| 495 | |
| 496 dnew = (diff_T *)alloc((unsigned)sizeof(diff_T)); | |
| 497 if (dnew != NULL) | |
| 498 { | |
| 499 dnew->df_next = dp; | |
| 500 if (dprev == NULL) | |
| 672 | 501 tp->tp_first_diff = dnew; |
| 7 | 502 else |
| 503 dprev->df_next = dnew; | |
| 504 } | |
| 505 return dnew; | |
| 506 } | |
| 507 | |
| 508 /* | |
| 509 * Check if the diff block "dp" can be made smaller for lines at the start and | |
| 510 * end that are equal. Called after inserting lines. | |
| 511 * This may result in a change where all buffers have zero lines, the caller | |
| 512 * must take care of removing it. | |
| 513 */ | |
| 514 static void | |
|
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515 diff_check_unchanged(tabpage_T *tp, diff_T *dp) |
| 7 | 516 { |
| 517 int i_org; | |
| 518 int i_new; | |
| 519 int off_org, off_new; | |
| 520 char_u *line_org; | |
| 521 int dir = FORWARD; | |
| 522 | |
| 523 /* Find the first buffers, use it as the original, compare the other | |
| 524 * buffer lines against this one. */ | |
| 525 for (i_org = 0; i_org < DB_COUNT; ++i_org) | |
| 672 | 526 if (tp->tp_diffbuf[i_org] != NULL) |
| 7 | 527 break; |
| 528 if (i_org == DB_COUNT) /* safety check */ | |
| 529 return; | |
| 530 | |
| 672 | 531 if (diff_check_sanity(tp, dp) == FAIL) |
| 7 | 532 return; |
| 533 | |
| 534 /* First check lines at the top, then at the bottom. */ | |
| 535 off_org = 0; | |
| 536 off_new = 0; | |
| 537 for (;;) | |
| 538 { | |
| 539 /* Repeat until a line is found which is different or the number of | |
| 540 * lines has become zero. */ | |
| 541 while (dp->df_count[i_org] > 0) | |
| 542 { | |
| 543 /* Copy the line, the next ml_get() will invalidate it. */ | |
| 544 if (dir == BACKWARD) | |
| 545 off_org = dp->df_count[i_org] - 1; | |
| 672 | 546 line_org = vim_strsave(ml_get_buf(tp->tp_diffbuf[i_org], |
| 7 | 547 dp->df_lnum[i_org] + off_org, FALSE)); |
| 548 if (line_org == NULL) | |
| 549 return; | |
| 550 for (i_new = i_org + 1; i_new < DB_COUNT; ++i_new) | |
| 551 { | |
| 672 | 552 if (tp->tp_diffbuf[i_new] == NULL) |
| 7 | 553 continue; |
| 554 if (dir == BACKWARD) | |
| 555 off_new = dp->df_count[i_new] - 1; | |
| 556 /* if other buffer doesn't have this line, it was inserted */ | |
| 557 if (off_new < 0 || off_new >= dp->df_count[i_new]) | |
| 558 break; | |
| 672 | 559 if (diff_cmp(line_org, ml_get_buf(tp->tp_diffbuf[i_new], |
| 7 | 560 dp->df_lnum[i_new] + off_new, FALSE)) != 0) |
| 561 break; | |
| 562 } | |
| 563 vim_free(line_org); | |
| 564 | |
| 565 /* Stop when a line isn't equal in all diff buffers. */ | |
| 566 if (i_new != DB_COUNT) | |
| 567 break; | |
| 568 | |
| 569 /* Line matched in all buffers, remove it from the diff. */ | |
| 570 for (i_new = i_org; i_new < DB_COUNT; ++i_new) | |
| 672 | 571 if (tp->tp_diffbuf[i_new] != NULL) |
| 7 | 572 { |
| 573 if (dir == FORWARD) | |
| 574 ++dp->df_lnum[i_new]; | |
| 575 --dp->df_count[i_new]; | |
| 576 } | |
| 577 } | |
| 578 if (dir == BACKWARD) | |
| 579 break; | |
| 580 dir = BACKWARD; | |
| 581 } | |
| 582 } | |
| 583 | |
| 584 /* | |
| 585 * Check if a diff block doesn't contain invalid line numbers. | |
| 586 * This can happen when the diff program returns invalid results. | |
| 587 */ | |
| 588 static int | |
|
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589 diff_check_sanity(tabpage_T *tp, diff_T *dp) |
| 7 | 590 { |
| 591 int i; | |
| 592 | |
| 593 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 594 if (tp->tp_diffbuf[i] != NULL) |
| 7 | 595 if (dp->df_lnum[i] + dp->df_count[i] - 1 |
| 672 | 596 > tp->tp_diffbuf[i]->b_ml.ml_line_count) |
| 7 | 597 return FAIL; |
| 598 return OK; | |
| 599 } | |
| 600 | |
| 601 /* | |
| 672 | 602 * Mark all diff buffers in the current tab page for redraw. |
| 7 | 603 */ |
| 604 static void | |
|
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605 diff_redraw( |
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606 int dofold) /* also recompute the folds */ |
| 7 | 607 { |
| 608 win_T *wp; | |
| 609 int n; | |
| 610 | |
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611 FOR_ALL_WINDOWS(wp) |
| 7 | 612 if (wp->w_p_diff) |
| 613 { | |
| 738 | 614 redraw_win_later(wp, SOME_VALID); |
| 7 | 615 #ifdef FEAT_FOLDING |
| 616 if (dofold && foldmethodIsDiff(wp)) | |
| 617 foldUpdateAll(wp); | |
| 618 #endif | |
| 619 /* A change may have made filler lines invalid, need to take care | |
| 620 * of that for other windows. */ | |
| 3904 | 621 n = diff_check(wp, wp->w_topline); |
| 622 if ((wp != curwin && wp->w_topfill > 0) || n > 0) | |
| 7 | 623 { |
| 624 if (wp->w_topfill > n) | |
| 625 wp->w_topfill = (n < 0 ? 0 : n); | |
| 3904 | 626 else if (n > 0 && n > wp->w_topfill) |
| 627 wp->w_topfill = n; | |
| 5934 | 628 check_topfill(wp, FALSE); |
| 7 | 629 } |
| 630 } | |
| 631 } | |
| 632 | |
| 633 /* | |
| 634 * Write buffer "buf" to file "name". | |
| 635 * Always use 'fileformat' set to "unix". | |
| 636 * Return FAIL for failure | |
| 637 */ | |
| 638 static int | |
|
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639 diff_write(buf_T *buf, char_u *fname) |
| 7 | 640 { |
| 641 int r; | |
| 642 char_u *save_ff; | |
| 643 | |
| 644 save_ff = buf->b_p_ff; | |
| 645 buf->b_p_ff = vim_strsave((char_u *)FF_UNIX); | |
| 646 r = buf_write(buf, fname, NULL, (linenr_T)1, buf->b_ml.ml_line_count, | |
| 647 NULL, FALSE, FALSE, FALSE, TRUE); | |
| 648 free_string_option(buf->b_p_ff); | |
| 649 buf->b_p_ff = save_ff; | |
| 650 return r; | |
| 651 } | |
| 652 | |
| 653 /* | |
| 654 * Completely update the diffs for the buffers involved. | |
| 655 * This uses the ordinary "diff" command. | |
| 656 * The buffers are written to a file, also for unmodified buffers (the file | |
| 657 * could have been produced by autocommands, e.g. the netrw plugin). | |
| 658 */ | |
| 659 void | |
|
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660 ex_diffupdate( |
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661 exarg_T *eap) /* can be NULL */ |
| 7 | 662 { |
| 663 buf_T *buf; | |
| 664 int idx_orig; | |
| 665 int idx_new; | |
| 666 char_u *tmp_orig; | |
| 667 char_u *tmp_new; | |
| 668 char_u *tmp_diff; | |
| 669 FILE *fd; | |
| 670 int ok; | |
| 1757 | 671 int io_error = FALSE; |
| 7 | 672 |
| 673 /* Delete all diffblocks. */ | |
| 672 | 674 diff_clear(curtab); |
| 675 curtab->tp_diff_invalid = FALSE; | |
| 7 | 676 |
| 677 /* Use the first buffer as the original text. */ | |
| 678 for (idx_orig = 0; idx_orig < DB_COUNT; ++idx_orig) | |
| 672 | 679 if (curtab->tp_diffbuf[idx_orig] != NULL) |
| 7 | 680 break; |
| 681 if (idx_orig == DB_COUNT) | |
| 682 return; | |
| 683 | |
| 684 /* Only need to do something when there is another buffer. */ | |
| 685 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new) | |
| 672 | 686 if (curtab->tp_diffbuf[idx_new] != NULL) |
| 7 | 687 break; |
| 688 if (idx_new == DB_COUNT) | |
| 689 return; | |
| 690 | |
| 691 /* We need three temp file names. */ | |
| 6721 | 692 tmp_orig = vim_tempname('o', TRUE); |
| 693 tmp_new = vim_tempname('n', TRUE); | |
| 694 tmp_diff = vim_tempname('d', TRUE); | |
| 7 | 695 if (tmp_orig == NULL || tmp_new == NULL || tmp_diff == NULL) |
| 696 goto theend; | |
| 697 | |
| 698 /* | |
| 699 * Do a quick test if "diff" really works. Otherwise it looks like there | |
| 700 * are no differences. Can't use the return value, it's non-zero when | |
| 701 * there are differences. | |
| 702 * May try twice, first with "-a" and then without. | |
| 703 */ | |
| 704 for (;;) | |
| 705 { | |
| 706 ok = FALSE; | |
| 531 | 707 fd = mch_fopen((char *)tmp_orig, "w"); |
| 1757 | 708 if (fd == NULL) |
| 709 io_error = TRUE; | |
| 710 else | |
| 7 | 711 { |
| 1757 | 712 if (fwrite("line1\n", (size_t)6, (size_t)1, fd) != 1) |
| 713 io_error = TRUE; | |
| 7 | 714 fclose(fd); |
| 531 | 715 fd = mch_fopen((char *)tmp_new, "w"); |
| 1757 | 716 if (fd == NULL) |
| 717 io_error = TRUE; | |
| 718 else | |
| 7 | 719 { |
| 1757 | 720 if (fwrite("line2\n", (size_t)6, (size_t)1, fd) != 1) |
| 721 io_error = TRUE; | |
| 7 | 722 fclose(fd); |
| 723 diff_file(tmp_orig, tmp_new, tmp_diff); | |
| 531 | 724 fd = mch_fopen((char *)tmp_diff, "r"); |
| 1757 | 725 if (fd == NULL) |
| 726 io_error = TRUE; | |
| 727 else | |
| 7 | 728 { |
| 729 char_u linebuf[LBUFLEN]; | |
| 730 | |
| 731 for (;;) | |
| 732 { | |
| 733 /* There must be a line that contains "1c1". */ | |
| 734 if (tag_fgets(linebuf, LBUFLEN, fd)) | |
| 735 break; | |
| 736 if (STRNCMP(linebuf, "1c1", 3) == 0) | |
| 737 ok = TRUE; | |
| 738 } | |
| 739 fclose(fd); | |
| 740 } | |
| 741 mch_remove(tmp_diff); | |
| 742 mch_remove(tmp_new); | |
| 743 } | |
| 744 mch_remove(tmp_orig); | |
| 745 } | |
| 746 | |
| 747 #ifdef FEAT_EVAL | |
| 748 /* When using 'diffexpr' break here. */ | |
| 749 if (*p_dex != NUL) | |
| 750 break; | |
| 751 #endif | |
| 752 | |
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753 #if defined(MSWIN) |
| 7 | 754 /* If the "-a" argument works, also check if "--binary" works. */ |
| 755 if (ok && diff_a_works == MAYBE && diff_bin_works == MAYBE) | |
| 756 { | |
| 757 diff_a_works = TRUE; | |
| 758 diff_bin_works = TRUE; | |
| 759 continue; | |
| 760 } | |
| 761 if (!ok && diff_a_works == TRUE && diff_bin_works == TRUE) | |
| 762 { | |
| 763 /* Tried --binary, but it failed. "-a" works though. */ | |
| 764 diff_bin_works = FALSE; | |
| 765 ok = TRUE; | |
| 766 } | |
| 767 #endif | |
| 768 | |
| 769 /* If we checked if "-a" works already, break here. */ | |
| 770 if (diff_a_works != MAYBE) | |
| 771 break; | |
| 772 diff_a_works = ok; | |
| 773 | |
| 774 /* If "-a" works break here, otherwise retry without "-a". */ | |
| 775 if (ok) | |
| 776 break; | |
| 777 } | |
| 778 if (!ok) | |
| 779 { | |
| 1757 | 780 if (io_error) |
| 781 EMSG(_("E810: Cannot read or write temp files")); | |
| 7 | 782 EMSG(_("E97: Cannot create diffs")); |
| 783 diff_a_works = MAYBE; | |
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|
784 #if defined(MSWIN) |
| 7 | 785 diff_bin_works = MAYBE; |
| 786 #endif | |
| 787 goto theend; | |
| 788 } | |
| 789 | |
| 3524 | 790 /* :diffupdate! */ |
| 791 if (eap != NULL && eap->forceit) | |
| 792 for (idx_new = idx_orig; idx_new < DB_COUNT; ++idx_new) | |
| 793 { | |
| 794 buf = curtab->tp_diffbuf[idx_new]; | |
| 795 if (buf_valid(buf)) | |
| 796 buf_check_timestamp(buf, FALSE); | |
| 797 } | |
| 798 | |
| 7 | 799 /* Write the first buffer to a tempfile. */ |
| 672 | 800 buf = curtab->tp_diffbuf[idx_orig]; |
| 7 | 801 if (diff_write(buf, tmp_orig) == FAIL) |
| 802 goto theend; | |
| 803 | |
| 804 /* Make a difference between the first buffer and every other. */ | |
| 805 for (idx_new = idx_orig + 1; idx_new < DB_COUNT; ++idx_new) | |
| 806 { | |
| 672 | 807 buf = curtab->tp_diffbuf[idx_new]; |
| 6985 | 808 if (buf == NULL || buf->b_ml.ml_mfp == NULL) |
| 809 continue; /* skip buffer that isn't loaded */ | |
| 7 | 810 if (diff_write(buf, tmp_new) == FAIL) |
| 811 continue; | |
| 812 diff_file(tmp_orig, tmp_new, tmp_diff); | |
| 813 | |
| 814 /* Read the diff output and add each entry to the diff list. */ | |
| 815 diff_read(idx_orig, idx_new, tmp_diff); | |
| 816 mch_remove(tmp_diff); | |
| 817 mch_remove(tmp_new); | |
| 818 } | |
| 819 mch_remove(tmp_orig); | |
| 820 | |
| 1429 | 821 /* force updating cursor position on screen */ |
| 822 curwin->w_valid_cursor.lnum = 0; | |
| 823 | |
| 7 | 824 diff_redraw(TRUE); |
| 825 | |
| 826 theend: | |
| 827 vim_free(tmp_orig); | |
| 828 vim_free(tmp_new); | |
| 829 vim_free(tmp_diff); | |
| 830 } | |
| 831 | |
| 832 /* | |
| 833 * Make a diff between files "tmp_orig" and "tmp_new", results in "tmp_diff". | |
| 834 */ | |
| 835 static void | |
|
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836 diff_file( |
|
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|
837 char_u *tmp_orig, |
|
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838 char_u *tmp_new, |
|
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|
839 char_u *tmp_diff) |
| 7 | 840 { |
| 841 char_u *cmd; | |
| 1872 | 842 size_t len; |
| 7 | 843 |
| 844 #ifdef FEAT_EVAL | |
| 845 if (*p_dex != NUL) | |
| 846 /* Use 'diffexpr' to generate the diff file. */ | |
| 847 eval_diff(tmp_orig, tmp_new, tmp_diff); | |
| 848 else | |
| 849 #endif | |
| 850 { | |
| 1872 | 851 len = STRLEN(tmp_orig) + STRLEN(tmp_new) |
| 852 + STRLEN(tmp_diff) + STRLEN(p_srr) + 27; | |
| 853 cmd = alloc((unsigned)len); | |
| 7 | 854 if (cmd != NULL) |
| 855 { | |
| 193 | 856 /* We don't want $DIFF_OPTIONS to get in the way. */ |
| 857 if (getenv("DIFF_OPTIONS")) | |
| 858 vim_setenv((char_u *)"DIFF_OPTIONS", (char_u *)""); | |
| 859 | |
| 7 | 860 /* Build the diff command and execute it. Always use -a, binary |
| 861 * differences are of no use. Ignore errors, diff returns | |
| 862 * non-zero when differences have been found. */ | |
| 1872 | 863 vim_snprintf((char *)cmd, len, "diff %s%s%s%s%s %s", |
| 7 | 864 diff_a_works == FALSE ? "" : "-a ", |
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865 #if defined(MSWIN) |
| 7 | 866 diff_bin_works == TRUE ? "--binary " : "", |
| 867 #else | |
| 868 "", | |
| 869 #endif | |
| 870 (diff_flags & DIFF_IWHITE) ? "-b " : "", | |
| 871 (diff_flags & DIFF_ICASE) ? "-i " : "", | |
| 872 tmp_orig, tmp_new); | |
| 1872 | 873 append_redir(cmd, (int)len, p_srr, tmp_diff); |
| 828 | 874 #ifdef FEAT_AUTOCMD |
| 1410 | 875 block_autocmds(); /* Avoid ShellCmdPost stuff */ |
| 828 | 876 #endif |
| 7 | 877 (void)call_shell(cmd, SHELL_FILTER|SHELL_SILENT|SHELL_DOOUT); |
| 828 | 878 #ifdef FEAT_AUTOCMD |
| 1410 | 879 unblock_autocmds(); |
| 828 | 880 #endif |
| 7 | 881 vim_free(cmd); |
| 882 } | |
| 883 } | |
| 884 } | |
| 885 | |
| 886 /* | |
| 887 * Create a new version of a file from the current buffer and a diff file. | |
| 888 * The buffer is written to a file, also for unmodified buffers (the file | |
| 889 * could have been produced by autocommands, e.g. the netrw plugin). | |
| 890 */ | |
| 891 void | |
|
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892 ex_diffpatch(exarg_T *eap) |
| 7 | 893 { |
| 894 char_u *tmp_orig; /* name of original temp file */ | |
| 895 char_u *tmp_new; /* name of patched temp file */ | |
| 896 char_u *buf = NULL; | |
| 1872 | 897 size_t buflen; |
| 7 | 898 win_T *old_curwin = curwin; |
| 899 char_u *newname = NULL; /* name of patched file buffer */ | |
| 900 #ifdef UNIX | |
| 901 char_u dirbuf[MAXPATHL]; | |
| 902 char_u *fullname = NULL; | |
| 903 #endif | |
| 904 #ifdef FEAT_BROWSE | |
| 905 char_u *browseFile = NULL; | |
| 906 int browse_flag = cmdmod.browse; | |
| 907 #endif | |
|
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908 stat_T st; |
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909 char_u *esc_name = NULL; |
| 7 | 910 |
| 911 #ifdef FEAT_BROWSE | |
| 912 if (cmdmod.browse) | |
| 913 { | |
| 28 | 914 browseFile = do_browse(0, (char_u *)_("Patch file"), |
| 7 | 915 eap->arg, NULL, NULL, BROWSE_FILTER_ALL_FILES, NULL); |
| 916 if (browseFile == NULL) | |
| 917 return; /* operation cancelled */ | |
| 918 eap->arg = browseFile; | |
| 919 cmdmod.browse = FALSE; /* don't let do_ecmd() browse again */ | |
| 920 } | |
| 921 #endif | |
| 922 | |
| 923 /* We need two temp file names. */ | |
| 6721 | 924 tmp_orig = vim_tempname('o', FALSE); |
| 925 tmp_new = vim_tempname('n', FALSE); | |
| 7 | 926 if (tmp_orig == NULL || tmp_new == NULL) |
| 927 goto theend; | |
| 928 | |
| 929 /* Write the current buffer to "tmp_orig". */ | |
| 930 if (buf_write(curbuf, tmp_orig, NULL, | |
| 931 (linenr_T)1, curbuf->b_ml.ml_line_count, | |
| 932 NULL, FALSE, FALSE, FALSE, TRUE) == FAIL) | |
| 933 goto theend; | |
| 934 | |
| 935 #ifdef UNIX | |
| 936 /* Get the absolute path of the patchfile, changing directory below. */ | |
| 937 fullname = FullName_save(eap->arg, FALSE); | |
| 938 #endif | |
|
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939 esc_name = vim_strsave_shellescape( |
| 7 | 940 # ifdef UNIX |
|
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941 fullname != NULL ? fullname : |
| 7 | 942 # endif |
|
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943 eap->arg, TRUE, TRUE); |
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944 if (esc_name == NULL) |
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945 goto theend; |
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946 buflen = STRLEN(tmp_orig) + STRLEN(esc_name) + STRLEN(tmp_new) + 16; |
| 1872 | 947 buf = alloc((unsigned)buflen); |
| 7 | 948 if (buf == NULL) |
| 949 goto theend; | |
| 950 | |
| 951 #ifdef UNIX | |
| 1788 | 952 /* Temporarily chdir to /tmp, to avoid patching files in the current |
| 7 | 953 * directory when the patch file contains more than one patch. When we |
| 954 * have our own temp dir use that instead, it will be cleaned up when we | |
| 955 * exit (any .rej files created). Don't change directory if we can't | |
| 956 * return to the current. */ | |
| 957 if (mch_dirname(dirbuf, MAXPATHL) != OK || mch_chdir((char *)dirbuf) != 0) | |
| 958 dirbuf[0] = NUL; | |
| 959 else | |
| 960 { | |
| 961 # ifdef TEMPDIRNAMES | |
| 962 if (vim_tempdir != NULL) | |
| 1757 | 963 ignored = mch_chdir((char *)vim_tempdir); |
| 7 | 964 else |
| 965 # endif | |
| 1757 | 966 ignored = mch_chdir("/tmp"); |
| 7 | 967 shorten_fnames(TRUE); |
| 968 } | |
| 969 #endif | |
| 970 | |
| 971 #ifdef FEAT_EVAL | |
| 972 if (*p_pex != NUL) | |
| 973 /* Use 'patchexpr' to generate the new file. */ | |
| 974 eval_patch(tmp_orig, | |
| 975 # ifdef UNIX | |
| 976 fullname != NULL ? fullname : | |
| 977 # endif | |
| 978 eap->arg, tmp_new); | |
| 979 else | |
| 980 #endif | |
| 981 { | |
| 982 /* Build the patch command and execute it. Ignore errors. Switch to | |
| 983 * cooked mode to allow the user to respond to prompts. */ | |
|
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984 vim_snprintf((char *)buf, buflen, "patch -o %s %s < %s", |
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985 tmp_new, tmp_orig, esc_name); |
| 828 | 986 #ifdef FEAT_AUTOCMD |
| 1410 | 987 block_autocmds(); /* Avoid ShellCmdPost stuff */ |
| 828 | 988 #endif |
| 7 | 989 (void)call_shell(buf, SHELL_FILTER | SHELL_COOKED); |
| 828 | 990 #ifdef FEAT_AUTOCMD |
| 1410 | 991 unblock_autocmds(); |
| 828 | 992 #endif |
| 7 | 993 } |
| 994 | |
| 995 #ifdef UNIX | |
| 996 if (dirbuf[0] != NUL) | |
| 997 { | |
| 998 if (mch_chdir((char *)dirbuf) != 0) | |
| 999 EMSG(_(e_prev_dir)); | |
| 1000 shorten_fnames(TRUE); | |
| 1001 } | |
| 1002 #endif | |
| 1003 | |
| 1004 /* patch probably has written over the screen */ | |
| 1005 redraw_later(CLEAR); | |
| 1006 | |
| 1007 /* Delete any .orig or .rej file created. */ | |
| 1008 STRCPY(buf, tmp_new); | |
| 1009 STRCAT(buf, ".orig"); | |
| 1010 mch_remove(buf); | |
| 1011 STRCPY(buf, tmp_new); | |
| 1012 STRCAT(buf, ".rej"); | |
| 1013 mch_remove(buf); | |
| 1014 | |
| 1942 | 1015 /* Only continue if the output file was created. */ |
| 1016 if (mch_stat((char *)tmp_new, &st) < 0 || st.st_size == 0) | |
| 1017 EMSG(_("E816: Cannot read patch output")); | |
| 1018 else | |
| 7 | 1019 { |
| 1942 | 1020 if (curbuf->b_fname != NULL) |
| 1021 { | |
| 1022 newname = vim_strnsave(curbuf->b_fname, | |
| 7 | 1023 (int)(STRLEN(curbuf->b_fname) + 4)); |
| 1942 | 1024 if (newname != NULL) |
| 1025 STRCAT(newname, ".new"); | |
| 1026 } | |
| 7 | 1027 |
| 1028 #ifdef FEAT_GUI | |
| 1942 | 1029 need_mouse_correct = TRUE; |
| 7 | 1030 #endif |
| 1942 | 1031 /* don't use a new tab page, each tab page has its own diffs */ |
| 1032 cmdmod.tab = 0; | |
| 682 | 1033 |
| 1942 | 1034 if (win_split(0, (diff_flags & DIFF_VERTICAL) ? WSP_VERT : 0) != FAIL) |
| 1035 { | |
| 1036 /* Pretend it was a ":split fname" command */ | |
| 1037 eap->cmdidx = CMD_split; | |
| 1038 eap->arg = tmp_new; | |
| 1039 do_exedit(eap, old_curwin); | |
| 7 | 1040 |
| 1942 | 1041 /* check that split worked and editing tmp_new */ |
| 1042 if (curwin != old_curwin && win_valid(old_curwin)) | |
| 1043 { | |
| 1044 /* Set 'diff', 'scrollbind' on and 'wrap' off. */ | |
| 1045 diff_win_options(curwin, TRUE); | |
| 1046 diff_win_options(old_curwin, TRUE); | |
| 7 | 1047 |
| 1942 | 1048 if (newname != NULL) |
| 1049 { | |
| 1050 /* do a ":file filename.new" on the patched buffer */ | |
| 1051 eap->arg = newname; | |
| 1052 ex_file(eap); | |
| 7 | 1053 |
| 1054 #ifdef FEAT_AUTOCMD | |
| 1942 | 1055 /* Do filetype detection with the new name. */ |
| 1056 if (au_has_group((char_u *)"filetypedetect")) | |
| 1057 do_cmdline_cmd((char_u *)":doau filetypedetect BufRead"); | |
| 7 | 1058 #endif |
| 1942 | 1059 } |
| 7 | 1060 } |
| 1061 } | |
| 1062 } | |
| 1063 | |
| 1064 theend: | |
| 1065 if (tmp_orig != NULL) | |
| 1066 mch_remove(tmp_orig); | |
| 1067 vim_free(tmp_orig); | |
| 1068 if (tmp_new != NULL) | |
| 1069 mch_remove(tmp_new); | |
| 1070 vim_free(tmp_new); | |
| 1071 vim_free(newname); | |
| 1072 vim_free(buf); | |
| 1073 #ifdef UNIX | |
| 1074 vim_free(fullname); | |
| 1075 #endif | |
|
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1076 vim_free(esc_name); |
| 7 | 1077 #ifdef FEAT_BROWSE |
| 1078 vim_free(browseFile); | |
| 1079 cmdmod.browse = browse_flag; | |
| 1080 #endif | |
| 1081 } | |
| 1082 | |
| 1083 /* | |
| 1084 * Split the window and edit another file, setting options to show the diffs. | |
| 1085 */ | |
| 1086 void | |
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1087 ex_diffsplit(exarg_T *eap) |
| 7 | 1088 { |
| 1089 win_T *old_curwin = curwin; | |
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1090 bufref_T old_curbuf; |
| 7 | 1091 |
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1092 set_bufref(&old_curbuf, curbuf); |
| 7 | 1093 #ifdef FEAT_GUI |
| 1094 need_mouse_correct = TRUE; | |
| 1095 #endif | |
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1096 /* Need to compute w_fraction when no redraw happened yet. */ |
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1097 validate_cursor(); |
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1098 set_fraction(curwin); |
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1099 |
| 682 | 1100 /* don't use a new tab page, each tab page has its own diffs */ |
| 1101 cmdmod.tab = 0; | |
| 1102 | |
| 764 | 1103 if (win_split(0, (diff_flags & DIFF_VERTICAL) ? WSP_VERT : 0) != FAIL) |
| 7 | 1104 { |
| 1105 /* Pretend it was a ":split fname" command */ | |
| 1106 eap->cmdidx = CMD_split; | |
| 449 | 1107 curwin->w_p_diff = TRUE; |
| 7 | 1108 do_exedit(eap, old_curwin); |
| 1109 | |
| 1110 if (curwin != old_curwin) /* split must have worked */ | |
| 1111 { | |
| 1112 /* Set 'diff', 'scrollbind' on and 'wrap' off. */ | |
| 1113 diff_win_options(curwin, TRUE); | |
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1114 if (win_valid(old_curwin)) |
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1115 { |
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1116 diff_win_options(old_curwin, TRUE); |
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1117 |
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1118 if (bufref_valid(&old_curbuf)) |
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1119 /* Move the cursor position to that of the old window. */ |
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1120 curwin->w_cursor.lnum = diff_get_corresponding_line( |
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1121 old_curbuf.br_buf, old_curwin->w_cursor.lnum); |
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1122 } |
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1123 /* Now that lines are folded scroll to show the cursor at the same |
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1124 * relative position. */ |
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|
1125 scroll_to_fraction(curwin, curwin->w_height); |
| 7 | 1126 } |
| 1127 } | |
| 1128 } | |
| 1129 | |
| 1130 /* | |
| 4352 | 1131 * Set options to show diffs for the current window. |
| 7 | 1132 */ |
| 1133 void | |
|
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|
1134 ex_diffthis(exarg_T *eap UNUSED) |
| 7 | 1135 { |
| 1136 /* Set 'diff', 'scrollbind' on and 'wrap' off. */ | |
| 1137 diff_win_options(curwin, TRUE); | |
| 1138 } | |
| 1139 | |
| 1140 /* | |
| 1141 * Set options in window "wp" for diff mode. | |
| 1142 */ | |
| 1143 void | |
|
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1144 diff_win_options( |
|
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|
1145 win_T *wp, |
|
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|
1146 int addbuf) /* Add buffer to diff. */ |
| 7 | 1147 { |
|
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1148 # ifdef FEAT_FOLDING |
|
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1149 win_T *old_curwin = curwin; |
|
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1150 |
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1151 /* close the manually opened folds */ |
|
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1152 curwin = wp; |
|
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1153 newFoldLevel(); |
|
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1154 curwin = old_curwin; |
|
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1155 # endif |
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1156 |
| 2583 | 1157 /* Use 'scrollbind' and 'cursorbind' when available */ |
| 1158 #ifdef FEAT_SCROLLBIND | |
| 6897 | 1159 if (!wp->w_p_diff) |
|
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1160 wp->w_p_scb_save = wp->w_p_scb; |
| 2583 | 1161 wp->w_p_scb = TRUE; |
| 1162 #endif | |
|
2250
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1163 #ifdef FEAT_CURSORBIND |
| 6897 | 1164 if (!wp->w_p_diff) |
|
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1165 wp->w_p_crb_save = wp->w_p_crb; |
|
2250
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1166 wp->w_p_crb = TRUE; |
|
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1167 #endif |
| 6897 | 1168 if (!wp->w_p_diff) |
|
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1169 wp->w_p_wrap_save = wp->w_p_wrap; |
| 7 | 1170 wp->w_p_wrap = FALSE; |
| 1171 # ifdef FEAT_FOLDING | |
|
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1172 curwin = wp; |
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|
1173 curbuf = curwin->w_buffer; |
| 6897 | 1174 if (!wp->w_p_diff) |
| 1175 { | |
| 1176 if (wp->w_p_diff_saved) | |
| 1177 free_string_option(wp->w_p_fdm_save); | |
|
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1178 wp->w_p_fdm_save = vim_strsave(wp->w_p_fdm); |
| 6897 | 1179 } |
|
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|
1180 set_string_option_direct((char_u *)"fdm", -1, (char_u *)"diff", |
| 694 | 1181 OPT_LOCAL|OPT_FREE, 0); |
|
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|
1182 curwin = old_curwin; |
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|
1183 curbuf = curwin->w_buffer; |
| 6897 | 1184 if (!wp->w_p_diff) |
|
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1185 { |
|
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1186 wp->w_p_fdc_save = wp->w_p_fdc; |
|
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1187 wp->w_p_fen_save = wp->w_p_fen; |
|
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1188 wp->w_p_fdl_save = wp->w_p_fdl; |
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1189 } |
|
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1190 wp->w_p_fdc = diff_foldcolumn; |
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1191 wp->w_p_fen = TRUE; |
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|
1192 wp->w_p_fdl = 0; |
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1193 foldUpdateAll(wp); |
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|
1194 /* make sure topline is not halfway a fold */ |
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|
1195 changed_window_setting_win(wp); |
| 7 | 1196 # endif |
| 1197 #ifdef FEAT_SCROLLBIND | |
| 1198 if (vim_strchr(p_sbo, 'h') == NULL) | |
| 1199 do_cmdline_cmd((char_u *)"set sbo+=hor"); | |
| 1200 #endif | |
|
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1201 /* Saved the current values, to be restored in ex_diffoff(). */ |
|
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|
1202 wp->w_p_diff_saved = TRUE; |
| 7 | 1203 |
| 6897 | 1204 wp->w_p_diff = TRUE; |
| 1205 | |
| 7 | 1206 if (addbuf) |
| 1207 diff_buf_add(wp->w_buffer); | |
| 1208 redraw_win_later(wp, NOT_VALID); | |
| 1209 } | |
| 1210 | |
| 1211 /* | |
| 16 | 1212 * Set options not to show diffs. For the current window or all windows. |
| 671 | 1213 * Only in the current tab page. |
| 16 | 1214 */ |
| 1215 void | |
|
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|
1216 ex_diffoff(exarg_T *eap) |
| 16 | 1217 { |
| 1218 win_T *wp; | |
| 1219 #ifdef FEAT_SCROLLBIND | |
| 1220 int diffwin = FALSE; | |
| 1221 #endif | |
| 1222 | |
|
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|
1223 FOR_ALL_WINDOWS(wp) |
| 16 | 1224 { |
| 5358 | 1225 if (eap->forceit ? wp->w_p_diff : wp == curwin) |
| 16 | 1226 { |
| 6897 | 1227 /* Set 'diff' off. If option values were saved in |
| 1228 * diff_win_options(), restore the ones whose settings seem to have | |
| 1229 * been left over from diff mode. */ | |
| 16 | 1230 wp->w_p_diff = FALSE; |
|
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1231 |
|
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|
1232 if (wp->w_p_diff_saved) |
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|
1233 { |
| 6897 | 1234 |
| 1235 #ifdef FEAT_SCROLLBIND | |
| 1236 if (wp->w_p_scb) | |
| 1237 wp->w_p_scb = wp->w_p_scb_save; | |
| 1238 #endif | |
| 1239 #ifdef FEAT_CURSORBIND | |
| 1240 if (wp->w_p_crb) | |
| 1241 wp->w_p_crb = wp->w_p_crb_save; | |
| 1242 #endif | |
| 1243 if (!wp->w_p_wrap) | |
| 1244 wp->w_p_wrap = wp->w_p_wrap_save; | |
| 1245 #ifdef FEAT_FOLDING | |
|
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|
1246 free_string_option(wp->w_p_fdm); |
| 6897 | 1247 wp->w_p_fdm = vim_strsave(wp->w_p_fdm_save); |
|
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|
1248 |
| 6897 | 1249 if (wp->w_p_fdc == diff_foldcolumn) |
| 1250 wp->w_p_fdc = wp->w_p_fdc_save; | |
| 1251 if (wp->w_p_fdl == 0) | |
| 1252 wp->w_p_fdl = wp->w_p_fdl_save; | |
| 1253 | |
|
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|
1254 /* Only restore 'foldenable' when 'foldmethod' is not |
|
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|
1255 * "manual", otherwise we continue to show the diff folds. */ |
| 6897 | 1256 if (wp->w_p_fen) |
| 1257 wp->w_p_fen = foldmethodIsManual(wp) ? FALSE | |
| 1258 : wp->w_p_fen_save; | |
| 1259 | |
| 1260 foldUpdateAll(wp); | |
| 1261 #endif | |
|
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1262 } |
|
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|
1263 /* remove filler lines */ |
|
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1264 wp->w_topfill = 0; |
|
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1265 |
|
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|
1266 /* make sure topline is not halfway a fold and cursor is |
|
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1267 * invalidated */ |
|
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1268 changed_window_setting_win(wp); |
|
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1269 |
|
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|
1270 /* Note: 'sbo' is not restored, it's a global option. */ |
| 16 | 1271 diff_buf_adjust(wp); |
| 1272 } | |
| 1273 #ifdef FEAT_SCROLLBIND | |
| 1274 diffwin |= wp->w_p_diff; | |
| 1275 #endif | |
| 1276 } | |
| 1277 | |
|
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1278 /* Also remove hidden buffers from the list. */ |
|
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|
1279 if (eap->forceit) |
|
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|
1280 diff_buf_clear(); |
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|
1281 |
| 16 | 1282 #ifdef FEAT_SCROLLBIND |
| 1283 /* Remove "hor" from from 'scrollopt' if there are no diff windows left. */ | |
| 1284 if (!diffwin && vim_strchr(p_sbo, 'h') != NULL) | |
| 1285 do_cmdline_cmd((char_u *)"set sbo-=hor"); | |
| 1286 #endif | |
| 1287 } | |
| 1288 | |
| 1289 /* | |
| 7 | 1290 * Read the diff output and add each entry to the diff list. |
| 1291 */ | |
| 1292 static void | |
|
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1293 diff_read( |
|
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|
1294 int idx_orig, /* idx of original file */ |
|
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|
1295 int idx_new, /* idx of new file */ |
|
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|
1296 char_u *fname) /* name of diff output file */ |
| 7 | 1297 { |
| 1298 FILE *fd; | |
| 1299 diff_T *dprev = NULL; | |
| 672 | 1300 diff_T *dp = curtab->tp_first_diff; |
| 7 | 1301 diff_T *dn, *dpl; |
| 1302 long f1, l1, f2, l2; | |
| 1303 char_u linebuf[LBUFLEN]; /* only need to hold the diff line */ | |
| 1304 int difftype; | |
| 1305 char_u *p; | |
| 1306 long off; | |
| 1307 int i; | |
| 1308 linenr_T lnum_orig, lnum_new; | |
| 1309 long count_orig, count_new; | |
| 1310 int notset = TRUE; /* block "*dp" not set yet */ | |
| 1311 | |
| 531 | 1312 fd = mch_fopen((char *)fname, "r"); |
| 7 | 1313 if (fd == NULL) |
| 1314 { | |
| 1315 EMSG(_("E98: Cannot read diff output")); | |
| 1316 return; | |
| 1317 } | |
| 1318 | |
| 1319 for (;;) | |
| 1320 { | |
| 1321 if (tag_fgets(linebuf, LBUFLEN, fd)) | |
| 1322 break; /* end of file */ | |
| 1323 if (!isdigit(*linebuf)) | |
| 1324 continue; /* not the start of a diff block */ | |
| 1325 | |
| 1326 /* This line must be one of three formats: | |
| 1327 * {first}[,{last}]c{first}[,{last}] | |
| 1328 * {first}a{first}[,{last}] | |
| 1329 * {first}[,{last}]d{first} | |
| 1330 */ | |
| 1331 p = linebuf; | |
| 1332 f1 = getdigits(&p); | |
| 1333 if (*p == ',') | |
| 1334 { | |
| 1335 ++p; | |
| 1336 l1 = getdigits(&p); | |
| 1337 } | |
| 1338 else | |
| 1339 l1 = f1; | |
| 1340 if (*p != 'a' && *p != 'c' && *p != 'd') | |
| 1341 continue; /* invalid diff format */ | |
| 1342 difftype = *p++; | |
| 1343 f2 = getdigits(&p); | |
| 1344 if (*p == ',') | |
| 1345 { | |
| 1346 ++p; | |
| 1347 l2 = getdigits(&p); | |
| 1348 } | |
| 1349 else | |
| 1350 l2 = f2; | |
| 1351 if (l1 < f1 || l2 < f2) | |
| 1352 continue; /* invalid line range */ | |
| 1353 | |
| 1354 if (difftype == 'a') | |
| 1355 { | |
| 1356 lnum_orig = f1 + 1; | |
| 1357 count_orig = 0; | |
| 1358 } | |
| 1359 else | |
| 1360 { | |
| 1361 lnum_orig = f1; | |
| 1362 count_orig = l1 - f1 + 1; | |
| 1363 } | |
| 1364 if (difftype == 'd') | |
| 1365 { | |
| 1366 lnum_new = f2 + 1; | |
| 1367 count_new = 0; | |
| 1368 } | |
| 1369 else | |
| 1370 { | |
| 1371 lnum_new = f2; | |
| 1372 count_new = l2 - f2 + 1; | |
| 1373 } | |
| 1374 | |
| 1375 /* Go over blocks before the change, for which orig and new are equal. | |
| 1376 * Copy blocks from orig to new. */ | |
| 1377 while (dp != NULL | |
| 1378 && lnum_orig > dp->df_lnum[idx_orig] + dp->df_count[idx_orig]) | |
| 1379 { | |
| 1380 if (notset) | |
| 1381 diff_copy_entry(dprev, dp, idx_orig, idx_new); | |
| 1382 dprev = dp; | |
| 1383 dp = dp->df_next; | |
| 1384 notset = TRUE; | |
| 1385 } | |
| 1386 | |
| 1387 if (dp != NULL | |
| 1388 && lnum_orig <= dp->df_lnum[idx_orig] + dp->df_count[idx_orig] | |
| 1389 && lnum_orig + count_orig >= dp->df_lnum[idx_orig]) | |
| 1390 { | |
| 1391 /* New block overlaps with existing block(s). | |
| 1392 * First find last block that overlaps. */ | |
| 1393 for (dpl = dp; dpl->df_next != NULL; dpl = dpl->df_next) | |
| 1394 if (lnum_orig + count_orig < dpl->df_next->df_lnum[idx_orig]) | |
| 1395 break; | |
| 1396 | |
| 1397 /* If the newly found block starts before the old one, set the | |
| 1398 * start back a number of lines. */ | |
| 1399 off = dp->df_lnum[idx_orig] - lnum_orig; | |
| 1400 if (off > 0) | |
| 1401 { | |
| 1402 for (i = idx_orig; i < idx_new; ++i) | |
| 672 | 1403 if (curtab->tp_diffbuf[i] != NULL) |
| 7 | 1404 dp->df_lnum[i] -= off; |
| 1405 dp->df_lnum[idx_new] = lnum_new; | |
| 1406 dp->df_count[idx_new] = count_new; | |
| 1407 } | |
| 1408 else if (notset) | |
| 1409 { | |
| 1410 /* new block inside existing one, adjust new block */ | |
| 1411 dp->df_lnum[idx_new] = lnum_new + off; | |
| 1412 dp->df_count[idx_new] = count_new - off; | |
| 1413 } | |
| 1414 else | |
| 1415 /* second overlap of new block with existing block */ | |
| 1519 | 1416 dp->df_count[idx_new] += count_new - count_orig |
| 1417 + dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig] | |
| 1418 - (dp->df_lnum[idx_orig] + dp->df_count[idx_orig]); | |
| 7 | 1419 |
| 1420 /* Adjust the size of the block to include all the lines to the | |
| 1421 * end of the existing block or the new diff, whatever ends last. */ | |
| 1422 off = (lnum_orig + count_orig) | |
| 1423 - (dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig]); | |
| 1424 if (off < 0) | |
| 1425 { | |
| 1426 /* new change ends in existing block, adjust the end if not | |
| 1427 * done already */ | |
| 1428 if (notset) | |
| 1429 dp->df_count[idx_new] += -off; | |
| 1430 off = 0; | |
| 1431 } | |
| 1428 | 1432 for (i = idx_orig; i < idx_new; ++i) |
| 672 | 1433 if (curtab->tp_diffbuf[i] != NULL) |
| 7 | 1434 dp->df_count[i] = dpl->df_lnum[i] + dpl->df_count[i] |
| 1435 - dp->df_lnum[i] + off; | |
| 1436 | |
| 1437 /* Delete the diff blocks that have been merged into one. */ | |
| 1438 dn = dp->df_next; | |
| 1439 dp->df_next = dpl->df_next; | |
| 1440 while (dn != dp->df_next) | |
| 1441 { | |
| 1442 dpl = dn->df_next; | |
| 1443 vim_free(dn); | |
| 1444 dn = dpl; | |
| 1445 } | |
| 1446 } | |
| 1447 else | |
| 1448 { | |
| 1449 /* Allocate a new diffblock. */ | |
| 672 | 1450 dp = diff_alloc_new(curtab, dprev, dp); |
| 7 | 1451 if (dp == NULL) |
| 840 | 1452 goto done; |
| 7 | 1453 |
| 1454 dp->df_lnum[idx_orig] = lnum_orig; | |
| 1455 dp->df_count[idx_orig] = count_orig; | |
| 1456 dp->df_lnum[idx_new] = lnum_new; | |
| 1457 dp->df_count[idx_new] = count_new; | |
| 1458 | |
| 1459 /* Set values for other buffers, these must be equal to the | |
| 1460 * original buffer, otherwise there would have been a change | |
| 1461 * already. */ | |
| 1462 for (i = idx_orig + 1; i < idx_new; ++i) | |
| 672 | 1463 if (curtab->tp_diffbuf[i] != NULL) |
| 7 | 1464 diff_copy_entry(dprev, dp, idx_orig, i); |
| 1465 } | |
| 1466 notset = FALSE; /* "*dp" has been set */ | |
| 1467 } | |
| 1468 | |
| 1469 /* for remaining diff blocks orig and new are equal */ | |
| 1470 while (dp != NULL) | |
| 1471 { | |
| 1472 if (notset) | |
| 1473 diff_copy_entry(dprev, dp, idx_orig, idx_new); | |
| 1474 dprev = dp; | |
| 1475 dp = dp->df_next; | |
| 1476 notset = TRUE; | |
| 1477 } | |
| 1478 | |
| 840 | 1479 done: |
| 7 | 1480 fclose(fd); |
| 1481 } | |
| 1482 | |
| 1483 /* | |
| 1484 * Copy an entry at "dp" from "idx_orig" to "idx_new". | |
| 1485 */ | |
| 1486 static void | |
|
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1487 diff_copy_entry( |
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1488 diff_T *dprev, |
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1489 diff_T *dp, |
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1490 int idx_orig, |
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1491 int idx_new) |
| 7 | 1492 { |
| 1493 long off; | |
| 1494 | |
| 1495 if (dprev == NULL) | |
| 1496 off = 0; | |
| 1497 else | |
| 1498 off = (dprev->df_lnum[idx_orig] + dprev->df_count[idx_orig]) | |
| 1499 - (dprev->df_lnum[idx_new] + dprev->df_count[idx_new]); | |
| 1500 dp->df_lnum[idx_new] = dp->df_lnum[idx_orig] - off; | |
| 1501 dp->df_count[idx_new] = dp->df_count[idx_orig]; | |
| 1502 } | |
| 1503 | |
| 1504 /* | |
| 672 | 1505 * Clear the list of diffblocks for tab page "tp". |
| 7 | 1506 */ |
| 358 | 1507 void |
|
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1508 diff_clear(tabpage_T *tp) |
| 7 | 1509 { |
| 1510 diff_T *p, *next_p; | |
| 1511 | |
| 672 | 1512 for (p = tp->tp_first_diff; p != NULL; p = next_p) |
| 7 | 1513 { |
| 1514 next_p = p->df_next; | |
| 1515 vim_free(p); | |
| 1516 } | |
| 672 | 1517 tp->tp_first_diff = NULL; |
| 7 | 1518 } |
| 1519 | |
| 1520 /* | |
| 1521 * Check diff status for line "lnum" in buffer "buf": | |
| 1522 * Returns 0 for nothing special | |
| 1523 * Returns -1 for a line that should be highlighted as changed. | |
| 1524 * Returns -2 for a line that should be highlighted as added/deleted. | |
| 1525 * Returns > 0 for inserting that many filler lines above it (never happens | |
| 1526 * when 'diffopt' doesn't contain "filler"). | |
| 1527 * This should only be used for windows where 'diff' is set. | |
| 1528 */ | |
| 1529 int | |
|
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1530 diff_check(win_T *wp, linenr_T lnum) |
| 7 | 1531 { |
| 672 | 1532 int idx; /* index in tp_diffbuf[] for this buffer */ |
| 7 | 1533 diff_T *dp; |
| 1534 int maxcount; | |
| 1535 int i; | |
| 1536 buf_T *buf = wp->w_buffer; | |
| 1537 int cmp; | |
| 1538 | |
| 672 | 1539 if (curtab->tp_diff_invalid) |
| 7 | 1540 ex_diffupdate(NULL); /* update after a big change */ |
| 1541 | |
| 672 | 1542 if (curtab->tp_first_diff == NULL || !wp->w_p_diff) /* no diffs at all */ |
| 7 | 1543 return 0; |
| 1544 | |
| 1545 /* safety check: "lnum" must be a buffer line */ | |
| 1546 if (lnum < 1 || lnum > buf->b_ml.ml_line_count + 1) | |
| 1547 return 0; | |
| 1548 | |
| 1549 idx = diff_buf_idx(buf); | |
| 1550 if (idx == DB_COUNT) | |
| 1551 return 0; /* no diffs for buffer "buf" */ | |
| 1552 | |
| 1553 #ifdef FEAT_FOLDING | |
| 1554 /* A closed fold never has filler lines. */ | |
| 1555 if (hasFoldingWin(wp, lnum, NULL, NULL, TRUE, NULL)) | |
| 1556 return 0; | |
| 1557 #endif | |
| 1558 | |
| 1559 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
| 672 | 1560 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
| 7 | 1561 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx]) |
| 1562 break; | |
| 1563 if (dp == NULL || lnum < dp->df_lnum[idx]) | |
| 1564 return 0; | |
| 1565 | |
| 1566 if (lnum < dp->df_lnum[idx] + dp->df_count[idx]) | |
| 1567 { | |
| 1568 int zero = FALSE; | |
| 1569 | |
| 1570 /* Changed or inserted line. If the other buffers have a count of | |
| 1571 * zero, the lines were inserted. If the other buffers have the same | |
| 1572 * count, check if the lines are identical. */ | |
| 1573 cmp = FALSE; | |
| 1574 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 1575 if (i != idx && curtab->tp_diffbuf[i] != NULL) |
| 7 | 1576 { |
| 1577 if (dp->df_count[i] == 0) | |
| 1578 zero = TRUE; | |
| 1579 else | |
| 1580 { | |
| 1581 if (dp->df_count[i] != dp->df_count[idx]) | |
| 1582 return -1; /* nr of lines changed. */ | |
| 1583 cmp = TRUE; | |
| 1584 } | |
| 1585 } | |
| 1586 if (cmp) | |
| 1587 { | |
| 1588 /* Compare all lines. If they are equal the lines were inserted | |
| 1589 * in some buffers, deleted in others, but not changed. */ | |
| 1590 for (i = 0; i < DB_COUNT; ++i) | |
|
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1591 if (i != idx && curtab->tp_diffbuf[i] != NULL |
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1592 && dp->df_count[i] != 0) |
| 7 | 1593 if (!diff_equal_entry(dp, idx, i)) |
| 1594 return -1; | |
| 1595 } | |
| 1596 /* If there is no buffer with zero lines then there is no difference | |
| 1597 * any longer. Happens when making a change (or undo) that removes | |
| 1598 * the difference. Can't remove the entry here, we might be halfway | |
| 1599 * updating the window. Just report the text as unchanged. Other | |
| 1600 * windows might still show the change though. */ | |
| 1601 if (zero == FALSE) | |
| 1602 return 0; | |
| 1603 return -2; | |
| 1604 } | |
| 1605 | |
| 1606 /* If 'diffopt' doesn't contain "filler", return 0. */ | |
| 1607 if (!(diff_flags & DIFF_FILLER)) | |
| 1608 return 0; | |
| 1609 | |
| 1610 /* Insert filler lines above the line just below the change. Will return | |
| 1611 * 0 when this buf had the max count. */ | |
| 1612 maxcount = 0; | |
| 1613 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 1614 if (curtab->tp_diffbuf[i] != NULL && dp->df_count[i] > maxcount) |
| 7 | 1615 maxcount = dp->df_count[i]; |
| 1616 return maxcount - dp->df_count[idx]; | |
| 1617 } | |
| 1618 | |
| 1619 /* | |
| 1620 * Compare two entries in diff "*dp" and return TRUE if they are equal. | |
| 1621 */ | |
| 1622 static int | |
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1623 diff_equal_entry(diff_T *dp, int idx1, int idx2) |
| 7 | 1624 { |
| 1625 int i; | |
| 1626 char_u *line; | |
| 1627 int cmp; | |
| 1628 | |
| 1629 if (dp->df_count[idx1] != dp->df_count[idx2]) | |
| 1630 return FALSE; | |
| 672 | 1631 if (diff_check_sanity(curtab, dp) == FAIL) |
| 7 | 1632 return FALSE; |
| 1633 for (i = 0; i < dp->df_count[idx1]; ++i) | |
| 1634 { | |
| 672 | 1635 line = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx1], |
| 7 | 1636 dp->df_lnum[idx1] + i, FALSE)); |
| 1637 if (line == NULL) | |
| 1638 return FALSE; | |
| 672 | 1639 cmp = diff_cmp(line, ml_get_buf(curtab->tp_diffbuf[idx2], |
| 7 | 1640 dp->df_lnum[idx2] + i, FALSE)); |
| 1641 vim_free(line); | |
| 1642 if (cmp != 0) | |
| 1643 return FALSE; | |
| 1644 } | |
| 1645 return TRUE; | |
| 1646 } | |
| 1647 | |
| 1648 /* | |
| 1649 * Compare strings "s1" and "s2" according to 'diffopt'. | |
| 1650 * Return non-zero when they are different. | |
| 1651 */ | |
| 1652 static int | |
|
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1653 diff_cmp(char_u *s1, char_u *s2) |
| 7 | 1654 { |
| 1655 char_u *p1, *p2; | |
| 1656 #ifdef FEAT_MBYTE | |
| 1657 int l; | |
| 1658 #endif | |
| 1659 | |
| 1660 if ((diff_flags & (DIFF_ICASE | DIFF_IWHITE)) == 0) | |
| 1661 return STRCMP(s1, s2); | |
| 1662 if ((diff_flags & DIFF_ICASE) && !(diff_flags & DIFF_IWHITE)) | |
| 1663 return MB_STRICMP(s1, s2); | |
| 1664 | |
| 1665 /* Ignore white space changes and possibly ignore case. */ | |
| 1666 p1 = s1; | |
| 1667 p2 = s2; | |
| 1668 while (*p1 != NUL && *p2 != NUL) | |
| 1669 { | |
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1670 if (VIM_ISWHITE(*p1) && VIM_ISWHITE(*p2)) |
| 7 | 1671 { |
| 1672 p1 = skipwhite(p1); | |
| 1673 p2 = skipwhite(p2); | |
| 1674 } | |
| 1675 else | |
| 1676 { | |
| 1677 #ifdef FEAT_MBYTE | |
| 474 | 1678 l = (*mb_ptr2len)(p1); |
| 1679 if (l != (*mb_ptr2len)(p2)) | |
| 7 | 1680 break; |
| 1681 if (l > 1) | |
| 1682 { | |
| 1683 if (STRNCMP(p1, p2, l) != 0 | |
| 1684 && (!enc_utf8 | |
| 1685 || !(diff_flags & DIFF_ICASE) | |
| 1686 || utf_fold(utf_ptr2char(p1)) | |
| 1687 != utf_fold(utf_ptr2char(p2)))) | |
| 1688 break; | |
| 1689 p1 += l; | |
| 1690 p2 += l; | |
| 1691 } | |
| 1692 else | |
| 1693 #endif | |
| 1694 { | |
| 1695 if (*p1 != *p2 && (!(diff_flags & DIFF_ICASE) | |
| 1696 || TOLOWER_LOC(*p1) != TOLOWER_LOC(*p2))) | |
| 1697 break; | |
| 1698 ++p1; | |
| 1699 ++p2; | |
| 1700 } | |
| 1701 } | |
| 1702 } | |
| 1703 | |
| 1704 /* Ignore trailing white space. */ | |
| 1705 p1 = skipwhite(p1); | |
| 1706 p2 = skipwhite(p2); | |
| 1707 if (*p1 != NUL || *p2 != NUL) | |
| 1708 return 1; | |
| 1709 return 0; | |
| 1710 } | |
| 1711 | |
| 1712 /* | |
| 1713 * Return the number of filler lines above "lnum". | |
| 1714 */ | |
| 1715 int | |
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1716 diff_check_fill(win_T *wp, linenr_T lnum) |
| 7 | 1717 { |
| 1718 int n; | |
| 1719 | |
| 1720 /* be quick when there are no filler lines */ | |
| 1721 if (!(diff_flags & DIFF_FILLER)) | |
| 1722 return 0; | |
| 1723 n = diff_check(wp, lnum); | |
| 1724 if (n <= 0) | |
| 1725 return 0; | |
| 1726 return n; | |
| 1727 } | |
| 1728 | |
| 1729 /* | |
| 1730 * Set the topline of "towin" to match the position in "fromwin", so that they | |
| 1731 * show the same diff'ed lines. | |
| 1732 */ | |
| 1733 void | |
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1734 diff_set_topline(win_T *fromwin, win_T *towin) |
| 7 | 1735 { |
| 1519 | 1736 buf_T *frombuf = fromwin->w_buffer; |
| 7 | 1737 linenr_T lnum = fromwin->w_topline; |
| 1519 | 1738 int fromidx; |
| 1739 int toidx; | |
| 7 | 1740 diff_T *dp; |
| 1519 | 1741 int max_count; |
| 7 | 1742 int i; |
| 1743 | |
| 1519 | 1744 fromidx = diff_buf_idx(frombuf); |
| 1745 if (fromidx == DB_COUNT) | |
| 7 | 1746 return; /* safety check */ |
| 1747 | |
| 672 | 1748 if (curtab->tp_diff_invalid) |
| 7 | 1749 ex_diffupdate(NULL); /* update after a big change */ |
| 1750 | |
| 1751 towin->w_topfill = 0; | |
| 1752 | |
| 1753 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
| 672 | 1754 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
| 1519 | 1755 if (lnum <= dp->df_lnum[fromidx] + dp->df_count[fromidx]) |
| 7 | 1756 break; |
| 1757 if (dp == NULL) | |
| 1758 { | |
| 1759 /* After last change, compute topline relative to end of file; no | |
| 1760 * filler lines. */ | |
| 1761 towin->w_topline = towin->w_buffer->b_ml.ml_line_count | |
| 1519 | 1762 - (frombuf->b_ml.ml_line_count - lnum); |
| 7 | 1763 } |
| 1764 else | |
| 1765 { | |
| 1766 /* Find index for "towin". */ | |
| 1519 | 1767 toidx = diff_buf_idx(towin->w_buffer); |
| 1768 if (toidx == DB_COUNT) | |
| 7 | 1769 return; /* safety check */ |
| 1770 | |
| 1519 | 1771 towin->w_topline = lnum + (dp->df_lnum[toidx] - dp->df_lnum[fromidx]); |
| 1772 if (lnum >= dp->df_lnum[fromidx]) | |
| 7 | 1773 { |
| 1519 | 1774 /* Inside a change: compute filler lines. With three or more |
| 1775 * buffers we need to know the largest count. */ | |
| 1776 max_count = 0; | |
| 1777 for (i = 0; i < DB_COUNT; ++i) | |
| 1778 if (curtab->tp_diffbuf[i] != NULL | |
| 1779 && max_count < dp->df_count[i]) | |
| 1780 max_count = dp->df_count[i]; | |
| 1781 | |
| 1782 if (dp->df_count[toidx] == dp->df_count[fromidx]) | |
| 1783 { | |
| 1784 /* same number of lines: use same filler count */ | |
| 7 | 1785 towin->w_topfill = fromwin->w_topfill; |
| 1519 | 1786 } |
| 1787 else if (dp->df_count[toidx] > dp->df_count[fromidx]) | |
| 7 | 1788 { |
| 1519 | 1789 if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx]) |
| 1790 { | |
| 1791 /* more lines in towin and fromwin doesn't show diff | |
| 1792 * lines, only filler lines */ | |
| 1793 if (max_count - fromwin->w_topfill >= dp->df_count[toidx]) | |
| 1794 { | |
| 1795 /* towin also only shows filler lines */ | |
| 1796 towin->w_topline = dp->df_lnum[toidx] | |
| 1797 + dp->df_count[toidx]; | |
| 1798 towin->w_topfill = fromwin->w_topfill; | |
| 1799 } | |
| 1800 else | |
| 1801 /* towin still has some diff lines to show */ | |
| 1802 towin->w_topline = dp->df_lnum[toidx] | |
| 1803 + max_count - fromwin->w_topfill; | |
| 1804 } | |
| 7 | 1805 } |
| 1519 | 1806 else if (towin->w_topline >= dp->df_lnum[toidx] |
| 1807 + dp->df_count[toidx]) | |
| 7 | 1808 { |
| 1519 | 1809 /* less lines in towin and no diff lines to show: compute |
| 1810 * filler lines */ | |
| 1811 towin->w_topline = dp->df_lnum[toidx] + dp->df_count[toidx]; | |
| 1812 if (diff_flags & DIFF_FILLER) | |
| 7 | 1813 { |
| 1519 | 1814 if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx]) |
| 1815 /* fromwin is also out of diff lines */ | |
| 1816 towin->w_topfill = fromwin->w_topfill; | |
| 1817 else | |
| 1818 /* fromwin has some diff lines */ | |
| 1819 towin->w_topfill = dp->df_lnum[fromidx] | |
| 1820 + max_count - lnum; | |
| 7 | 1821 } |
| 1822 } | |
| 1823 } | |
| 1824 } | |
| 1825 | |
| 1826 /* safety check (if diff info gets outdated strange things may happen) */ | |
| 1827 towin->w_botfill = FALSE; | |
| 1828 if (towin->w_topline > towin->w_buffer->b_ml.ml_line_count) | |
| 1829 { | |
| 1830 towin->w_topline = towin->w_buffer->b_ml.ml_line_count; | |
| 1831 towin->w_botfill = TRUE; | |
| 1832 } | |
| 1833 if (towin->w_topline < 1) | |
| 1834 { | |
| 1835 towin->w_topline = 1; | |
| 1836 towin->w_topfill = 0; | |
| 1837 } | |
| 1838 | |
| 1839 /* When w_topline changes need to recompute w_botline and cursor position */ | |
| 1840 invalidate_botline_win(towin); | |
| 1841 changed_line_abv_curs_win(towin); | |
| 1842 | |
| 1843 check_topfill(towin, FALSE); | |
| 1844 #ifdef FEAT_FOLDING | |
| 1845 (void)hasFoldingWin(towin, towin->w_topline, &towin->w_topline, | |
| 1846 NULL, TRUE, NULL); | |
| 1847 #endif | |
| 1848 } | |
| 1849 | |
| 1850 /* | |
| 1851 * This is called when 'diffopt' is changed. | |
| 1852 */ | |
| 1853 int | |
|
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1854 diffopt_changed(void) |
| 7 | 1855 { |
| 1856 char_u *p; | |
| 1857 int diff_context_new = 6; | |
| 1858 int diff_flags_new = 0; | |
| 764 | 1859 int diff_foldcolumn_new = 2; |
| 672 | 1860 tabpage_T *tp; |
| 7 | 1861 |
| 1862 p = p_dip; | |
| 1863 while (*p != NUL) | |
| 1864 { | |
| 1865 if (STRNCMP(p, "filler", 6) == 0) | |
| 1866 { | |
| 1867 p += 6; | |
| 1868 diff_flags_new |= DIFF_FILLER; | |
| 1869 } | |
| 1870 else if (STRNCMP(p, "context:", 8) == 0 && VIM_ISDIGIT(p[8])) | |
| 1871 { | |
| 1872 p += 8; | |
| 1873 diff_context_new = getdigits(&p); | |
| 1874 } | |
| 1875 else if (STRNCMP(p, "icase", 5) == 0) | |
| 1876 { | |
| 1877 p += 5; | |
| 1878 diff_flags_new |= DIFF_ICASE; | |
| 1879 } | |
| 1880 else if (STRNCMP(p, "iwhite", 6) == 0) | |
| 1881 { | |
| 1882 p += 6; | |
| 1883 diff_flags_new |= DIFF_IWHITE; | |
| 1884 } | |
| 764 | 1885 else if (STRNCMP(p, "horizontal", 10) == 0) |
| 1886 { | |
| 1887 p += 10; | |
| 1888 diff_flags_new |= DIFF_HORIZONTAL; | |
| 1889 } | |
| 1890 else if (STRNCMP(p, "vertical", 8) == 0) | |
| 1891 { | |
| 1892 p += 8; | |
| 1893 diff_flags_new |= DIFF_VERTICAL; | |
| 1894 } | |
| 1895 else if (STRNCMP(p, "foldcolumn:", 11) == 0 && VIM_ISDIGIT(p[11])) | |
| 1896 { | |
| 1897 p += 11; | |
| 1898 diff_foldcolumn_new = getdigits(&p); | |
| 1899 } | |
| 7 | 1900 if (*p != ',' && *p != NUL) |
| 1901 return FAIL; | |
| 1902 if (*p == ',') | |
| 1903 ++p; | |
| 1904 } | |
| 1905 | |
| 764 | 1906 /* Can't have both "horizontal" and "vertical". */ |
| 1907 if ((diff_flags_new & DIFF_HORIZONTAL) && (diff_flags_new & DIFF_VERTICAL)) | |
| 1908 return FAIL; | |
| 1909 | |
| 7 | 1910 /* If "icase" or "iwhite" was added or removed, need to update the diff. */ |
| 1911 if (diff_flags != diff_flags_new) | |
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1912 FOR_ALL_TABPAGES(tp) |
| 672 | 1913 tp->tp_diff_invalid = TRUE; |
| 7 | 1914 |
| 1915 diff_flags = diff_flags_new; | |
| 1916 diff_context = diff_context_new; | |
| 764 | 1917 diff_foldcolumn = diff_foldcolumn_new; |
| 7 | 1918 |
| 1919 diff_redraw(TRUE); | |
| 1920 | |
| 1921 /* recompute the scroll binding with the new option value, may | |
| 1922 * remove or add filler lines */ | |
| 1923 check_scrollbind((linenr_T)0, 0L); | |
| 1924 | |
| 1925 return OK; | |
| 1926 } | |
| 1927 | |
| 1928 /* | |
| 764 | 1929 * Return TRUE if 'diffopt' contains "horizontal". |
| 1930 */ | |
| 1931 int | |
|
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1932 diffopt_horizontal(void) |
| 764 | 1933 { |
| 1934 return (diff_flags & DIFF_HORIZONTAL) != 0; | |
| 1935 } | |
| 1936 | |
| 1937 /* | |
| 7 | 1938 * Find the difference within a changed line. |
| 1939 * Returns TRUE if the line was added, no other buffer has it. | |
| 1940 */ | |
| 1941 int | |
|
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1942 diff_find_change( |
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1943 win_T *wp, |
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1944 linenr_T lnum, |
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1945 int *startp, /* first char of the change */ |
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1946 int *endp) /* last char of the change */ |
| 7 | 1947 { |
| 1948 char_u *line_org; | |
| 1949 char_u *line_new; | |
| 1950 int i; | |
| 829 | 1951 int si_org, si_new; |
| 1952 int ei_org, ei_new; | |
| 7 | 1953 diff_T *dp; |
| 1954 int idx; | |
| 1955 int off; | |
| 1956 int added = TRUE; | |
| 1957 | |
| 1958 /* Make a copy of the line, the next ml_get() will invalidate it. */ | |
| 1959 line_org = vim_strsave(ml_get_buf(wp->w_buffer, lnum, FALSE)); | |
| 1960 if (line_org == NULL) | |
| 1961 return FALSE; | |
| 1962 | |
| 1963 idx = diff_buf_idx(wp->w_buffer); | |
| 1964 if (idx == DB_COUNT) /* cannot happen */ | |
| 1074 | 1965 { |
| 1966 vim_free(line_org); | |
| 7 | 1967 return FALSE; |
| 1074 | 1968 } |
| 7 | 1969 |
| 1970 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
| 672 | 1971 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
| 7 | 1972 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx]) |
| 1973 break; | |
| 672 | 1974 if (dp == NULL || diff_check_sanity(curtab, dp) == FAIL) |
| 1074 | 1975 { |
| 1976 vim_free(line_org); | |
| 7 | 1977 return FALSE; |
| 1074 | 1978 } |
| 7 | 1979 |
| 1980 off = lnum - dp->df_lnum[idx]; | |
| 1981 | |
| 1982 for (i = 0; i < DB_COUNT; ++i) | |
| 672 | 1983 if (curtab->tp_diffbuf[i] != NULL && i != idx) |
| 7 | 1984 { |
| 1985 /* Skip lines that are not in the other change (filler lines). */ | |
| 1986 if (off >= dp->df_count[i]) | |
| 1987 continue; | |
| 1988 added = FALSE; | |
| 829 | 1989 line_new = ml_get_buf(curtab->tp_diffbuf[i], |
| 1990 dp->df_lnum[i] + off, FALSE); | |
| 7 | 1991 |
| 1992 /* Search for start of difference */ | |
| 829 | 1993 si_org = si_new = 0; |
| 1994 while (line_org[si_org] != NUL) | |
| 1995 { | |
| 1996 if ((diff_flags & DIFF_IWHITE) | |
|
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1997 && VIM_ISWHITE(line_org[si_org]) |
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1998 && VIM_ISWHITE(line_new[si_new])) |
| 829 | 1999 { |
| 835 | 2000 si_org = (int)(skipwhite(line_org + si_org) - line_org); |
| 2001 si_new = (int)(skipwhite(line_new + si_new) - line_new); | |
| 829 | 2002 } |
| 2003 else | |
| 2004 { | |
| 2005 if (line_org[si_org] != line_new[si_new]) | |
| 2006 break; | |
| 2007 ++si_org; | |
| 2008 ++si_new; | |
| 2009 } | |
| 2010 } | |
| 7 | 2011 #ifdef FEAT_MBYTE |
| 2012 if (has_mbyte) | |
| 2013 { | |
| 2014 /* Move back to first byte of character in both lines (may | |
| 2015 * have "nn^" in line_org and "n^ in line_new). */ | |
| 829 | 2016 si_org -= (*mb_head_off)(line_org, line_org + si_org); |
| 2017 si_new -= (*mb_head_off)(line_new, line_new + si_new); | |
| 7 | 2018 } |
| 2019 #endif | |
| 829 | 2020 if (*startp > si_org) |
| 2021 *startp = si_org; | |
| 7 | 2022 |
| 2023 /* Search for end of difference, if any. */ | |
| 829 | 2024 if (line_org[si_org] != NUL || line_new[si_new] != NUL) |
| 7 | 2025 { |
| 2026 ei_org = (int)STRLEN(line_org); | |
| 2027 ei_new = (int)STRLEN(line_new); | |
| 829 | 2028 while (ei_org >= *startp && ei_new >= si_new |
| 2029 && ei_org >= 0 && ei_new >= 0) | |
| 7 | 2030 { |
| 829 | 2031 if ((diff_flags & DIFF_IWHITE) |
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2032 && VIM_ISWHITE(line_org[ei_org]) |
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2033 && VIM_ISWHITE(line_new[ei_new])) |
| 829 | 2034 { |
| 2035 while (ei_org >= *startp | |
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2036 && VIM_ISWHITE(line_org[ei_org])) |
| 829 | 2037 --ei_org; |
| 2038 while (ei_new >= si_new | |
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2039 && VIM_ISWHITE(line_new[ei_new])) |
| 829 | 2040 --ei_new; |
| 2041 } | |
| 2042 else | |
| 2043 { | |
| 2044 if (line_org[ei_org] != line_new[ei_new]) | |
| 2045 break; | |
| 2046 --ei_org; | |
| 2047 --ei_new; | |
| 2048 } | |
| 7 | 2049 } |
| 2050 if (*endp < ei_org) | |
| 2051 *endp = ei_org; | |
| 2052 } | |
| 2053 } | |
| 2054 | |
| 2055 vim_free(line_org); | |
| 2056 return added; | |
| 2057 } | |
| 2058 | |
| 2059 #if defined(FEAT_FOLDING) || defined(PROTO) | |
| 2060 /* | |
| 2061 * Return TRUE if line "lnum" is not close to a diff block, this line should | |
| 2062 * be in a fold. | |
| 2063 * Return FALSE if there are no diff blocks at all in this window. | |
| 2064 */ | |
| 2065 int | |
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2066 diff_infold(win_T *wp, linenr_T lnum) |
| 7 | 2067 { |
| 2068 int i; | |
| 2069 int idx = -1; | |
| 2070 int other = FALSE; | |
| 2071 diff_T *dp; | |
| 2072 | |
| 2073 /* Return if 'diff' isn't set. */ | |
| 2074 if (!wp->w_p_diff) | |
| 2075 return FALSE; | |
| 2076 | |
| 2077 for (i = 0; i < DB_COUNT; ++i) | |
| 2078 { | |
| 672 | 2079 if (curtab->tp_diffbuf[i] == wp->w_buffer) |
| 7 | 2080 idx = i; |
| 672 | 2081 else if (curtab->tp_diffbuf[i] != NULL) |
| 7 | 2082 other = TRUE; |
| 2083 } | |
| 2084 | |
| 2085 /* return here if there are no diffs in the window */ | |
| 2086 if (idx == -1 || !other) | |
| 2087 return FALSE; | |
| 2088 | |
| 672 | 2089 if (curtab->tp_diff_invalid) |
| 7 | 2090 ex_diffupdate(NULL); /* update after a big change */ |
| 2091 | |
| 2092 /* Return if there are no diff blocks. All lines will be folded. */ | |
| 672 | 2093 if (curtab->tp_first_diff == NULL) |
| 7 | 2094 return TRUE; |
| 2095 | |
| 672 | 2096 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
| 7 | 2097 { |
| 2098 /* If this change is below the line there can't be any further match. */ | |
| 2099 if (dp->df_lnum[idx] - diff_context > lnum) | |
| 2100 break; | |
| 2101 /* If this change ends before the line we have a match. */ | |
| 2102 if (dp->df_lnum[idx] + dp->df_count[idx] + diff_context > lnum) | |
| 2103 return FALSE; | |
| 2104 } | |
| 2105 return TRUE; | |
| 2106 } | |
| 2107 #endif | |
| 2108 | |
| 2109 /* | |
| 2110 * "dp" and "do" commands. | |
| 2111 */ | |
| 2112 void | |
|
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2113 nv_diffgetput(int put, long count) |
| 7 | 2114 { |
| 2115 exarg_T ea; | |
| 6314 | 2116 char_u buf[30]; |
| 7 | 2117 |
| 6314 | 2118 if (count == 0) |
| 2119 ea.arg = (char_u *)""; | |
| 2120 else | |
| 2121 { | |
| 2122 vim_snprintf((char *)buf, 30, "%ld", count); | |
| 2123 ea.arg = buf; | |
| 2124 } | |
| 7 | 2125 if (put) |
| 2126 ea.cmdidx = CMD_diffput; | |
| 2127 else | |
| 2128 ea.cmdidx = CMD_diffget; | |
| 2129 ea.addr_count = 0; | |
| 2130 ea.line1 = curwin->w_cursor.lnum; | |
| 2131 ea.line2 = curwin->w_cursor.lnum; | |
| 2132 ex_diffgetput(&ea); | |
| 2133 } | |
| 2134 | |
| 2135 /* | |
| 2136 * ":diffget" | |
| 2137 * ":diffput" | |
| 2138 */ | |
| 2139 void | |
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2140 ex_diffgetput(exarg_T *eap) |
| 7 | 2141 { |
| 2142 linenr_T lnum; | |
| 2143 int count; | |
| 2144 linenr_T off = 0; | |
| 2145 diff_T *dp; | |
| 2146 diff_T *dprev; | |
| 2147 diff_T *dfree; | |
| 2148 int idx_cur; | |
| 2149 int idx_other; | |
| 2150 int idx_from; | |
| 2151 int idx_to; | |
| 2152 int i; | |
| 2153 int added; | |
| 2154 char_u *p; | |
| 2155 aco_save_T aco; | |
| 2156 buf_T *buf; | |
| 2157 int start_skip, end_skip; | |
| 2158 int new_count; | |
| 648 | 2159 int buf_empty; |
| 1075 | 2160 int found_not_ma = FALSE; |
| 7 | 2161 |
| 2162 /* Find the current buffer in the list of diff buffers. */ | |
| 2163 idx_cur = diff_buf_idx(curbuf); | |
| 2164 if (idx_cur == DB_COUNT) | |
| 2165 { | |
| 2166 EMSG(_("E99: Current buffer is not in diff mode")); | |
| 2167 return; | |
| 2168 } | |
| 2169 | |
| 2170 if (*eap->arg == NUL) | |
| 2171 { | |
| 2172 /* No argument: Find the other buffer in the list of diff buffers. */ | |
| 2173 for (idx_other = 0; idx_other < DB_COUNT; ++idx_other) | |
| 672 | 2174 if (curtab->tp_diffbuf[idx_other] != curbuf |
| 1075 | 2175 && curtab->tp_diffbuf[idx_other] != NULL) |
| 2176 { | |
| 2177 if (eap->cmdidx != CMD_diffput | |
| 2178 || curtab->tp_diffbuf[idx_other]->b_p_ma) | |
| 2179 break; | |
| 2180 found_not_ma = TRUE; | |
| 2181 } | |
| 7 | 2182 if (idx_other == DB_COUNT) |
| 2183 { | |
| 1075 | 2184 if (found_not_ma) |
| 2185 EMSG(_("E793: No other buffer in diff mode is modifiable")); | |
| 2186 else | |
| 2187 EMSG(_("E100: No other buffer in diff mode")); | |
| 7 | 2188 return; |
| 2189 } | |
| 2190 | |
| 2191 /* Check that there isn't a third buffer in the list */ | |
| 2192 for (i = idx_other + 1; i < DB_COUNT; ++i) | |
| 672 | 2193 if (curtab->tp_diffbuf[i] != curbuf |
| 2194 && curtab->tp_diffbuf[i] != NULL | |
| 2195 && (eap->cmdidx != CMD_diffput || curtab->tp_diffbuf[i]->b_p_ma)) | |
| 7 | 2196 { |
| 2197 EMSG(_("E101: More than two buffers in diff mode, don't know which one to use")); | |
| 2198 return; | |
| 2199 } | |
| 2200 } | |
| 2201 else | |
| 2202 { | |
| 2203 /* Buffer number or pattern given. Ignore trailing white space. */ | |
| 2204 p = eap->arg + STRLEN(eap->arg); | |
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2205 while (p > eap->arg && VIM_ISWHITE(p[-1])) |
| 7 | 2206 --p; |
| 2207 for (i = 0; vim_isdigit(eap->arg[i]) && eap->arg + i < p; ++i) | |
| 2208 ; | |
| 2209 if (eap->arg + i == p) /* digits only */ | |
| 2210 i = atol((char *)eap->arg); | |
| 2211 else | |
| 2212 { | |
| 4236 | 2213 i = buflist_findpat(eap->arg, p, FALSE, TRUE, FALSE); |
| 7 | 2214 if (i < 0) |
| 2215 return; /* error message already given */ | |
| 2216 } | |
| 2217 buf = buflist_findnr(i); | |
| 2218 if (buf == NULL) | |
| 2219 { | |
| 2220 EMSG2(_("E102: Can't find buffer \"%s\""), eap->arg); | |
| 2221 return; | |
| 2222 } | |
| 1788 | 2223 if (buf == curbuf) |
| 2224 return; /* nothing to do */ | |
| 7 | 2225 idx_other = diff_buf_idx(buf); |
| 2226 if (idx_other == DB_COUNT) | |
| 2227 { | |
| 2228 EMSG2(_("E103: Buffer \"%s\" is not in diff mode"), eap->arg); | |
| 2229 return; | |
| 2230 } | |
| 2231 } | |
| 2232 | |
| 2233 diff_busy = TRUE; | |
| 2234 | |
| 2235 /* When no range given include the line above or below the cursor. */ | |
| 2236 if (eap->addr_count == 0) | |
| 2237 { | |
| 2238 /* Make it possible that ":diffget" on the last line gets line below | |
| 2239 * the cursor line when there is no difference above the cursor. */ | |
| 2240 if (eap->cmdidx == CMD_diffget | |
| 2241 && eap->line1 == curbuf->b_ml.ml_line_count | |
| 2242 && diff_check(curwin, eap->line1) == 0 | |
| 2243 && (eap->line1 == 1 || diff_check(curwin, eap->line1 - 1) == 0)) | |
| 2244 ++eap->line2; | |
| 2245 else if (eap->line1 > 0) | |
| 2246 --eap->line1; | |
| 2247 } | |
| 2248 | |
| 2249 if (eap->cmdidx == CMD_diffget) | |
| 2250 { | |
| 2251 idx_from = idx_other; | |
| 2252 idx_to = idx_cur; | |
| 2253 } | |
| 2254 else | |
| 2255 { | |
| 2256 idx_from = idx_cur; | |
| 2257 idx_to = idx_other; | |
| 2258 /* Need to make the other buffer the current buffer to be able to make | |
| 2259 * changes in it. */ | |
| 2260 /* set curwin/curbuf to buf and save a few things */ | |
| 672 | 2261 aucmd_prepbuf(&aco, curtab->tp_diffbuf[idx_other]); |
| 7 | 2262 } |
| 2263 | |
| 819 | 2264 /* May give the warning for a changed buffer here, which can trigger the |
| 2265 * FileChangedRO autocommand, which may do nasty things and mess | |
| 2266 * everything up. */ | |
| 2267 if (!curbuf->b_changed) | |
| 2268 { | |
| 2269 change_warning(0); | |
| 2270 if (diff_buf_idx(curbuf) != idx_to) | |
| 2271 { | |
| 2272 EMSG(_("E787: Buffer changed unexpectedly")); | |
| 2273 return; | |
| 2274 } | |
| 2275 } | |
| 2276 | |
| 7 | 2277 dprev = NULL; |
| 672 | 2278 for (dp = curtab->tp_first_diff; dp != NULL; ) |
| 7 | 2279 { |
| 2280 if (dp->df_lnum[idx_cur] > eap->line2 + off) | |
| 2281 break; /* past the range that was specified */ | |
| 2282 | |
| 2283 dfree = NULL; | |
| 2284 lnum = dp->df_lnum[idx_to]; | |
| 2285 count = dp->df_count[idx_to]; | |
| 2286 if (dp->df_lnum[idx_cur] + dp->df_count[idx_cur] > eap->line1 + off | |
| 2287 && u_save(lnum - 1, lnum + count) != FAIL) | |
| 2288 { | |
| 2289 /* Inside the specified range and saving for undo worked. */ | |
| 2290 start_skip = 0; | |
| 2291 end_skip = 0; | |
| 2292 if (eap->addr_count > 0) | |
| 2293 { | |
| 2294 /* A range was specified: check if lines need to be skipped. */ | |
| 2295 start_skip = eap->line1 + off - dp->df_lnum[idx_cur]; | |
| 2296 if (start_skip > 0) | |
| 2297 { | |
| 2298 /* range starts below start of current diff block */ | |
| 2299 if (start_skip > count) | |
| 2300 { | |
| 2301 lnum += count; | |
| 2302 count = 0; | |
| 2303 } | |
| 2304 else | |
| 2305 { | |
| 2306 count -= start_skip; | |
| 2307 lnum += start_skip; | |
| 2308 } | |
| 2309 } | |
| 2310 else | |
| 2311 start_skip = 0; | |
| 2312 | |
| 2313 end_skip = dp->df_lnum[idx_cur] + dp->df_count[idx_cur] - 1 | |
| 2314 - (eap->line2 + off); | |
| 2315 if (end_skip > 0) | |
| 2316 { | |
| 2317 /* range ends above end of current/from diff block */ | |
| 2318 if (idx_cur == idx_from) /* :diffput */ | |
| 2319 { | |
| 2320 i = dp->df_count[idx_cur] - start_skip - end_skip; | |
| 2321 if (count > i) | |
| 2322 count = i; | |
| 2323 } | |
| 2324 else /* :diffget */ | |
| 2325 { | |
| 2326 count -= end_skip; | |
| 2327 end_skip = dp->df_count[idx_from] - start_skip - count; | |
| 2328 if (end_skip < 0) | |
| 2329 end_skip = 0; | |
| 2330 } | |
| 2331 } | |
| 2332 else | |
| 2333 end_skip = 0; | |
| 2334 } | |
| 2335 | |
|
11121
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11113
diff
changeset
|
2336 buf_empty = BUFEMPTY(); |
| 7 | 2337 added = 0; |
| 2338 for (i = 0; i < count; ++i) | |
| 2339 { | |
| 648 | 2340 /* remember deleting the last line of the buffer */ |
| 2341 buf_empty = curbuf->b_ml.ml_line_count == 1; | |
| 7 | 2342 ml_delete(lnum, FALSE); |
| 2343 --added; | |
| 2344 } | |
| 2345 for (i = 0; i < dp->df_count[idx_from] - start_skip - end_skip; ++i) | |
| 2346 { | |
| 2347 linenr_T nr; | |
| 2348 | |
| 2349 nr = dp->df_lnum[idx_from] + start_skip + i; | |
| 672 | 2350 if (nr > curtab->tp_diffbuf[idx_from]->b_ml.ml_line_count) |
| 7 | 2351 break; |
| 819 | 2352 p = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx_from], |
| 2353 nr, FALSE)); | |
| 7 | 2354 if (p != NULL) |
| 2355 { | |
| 2356 ml_append(lnum + i - 1, p, 0, FALSE); | |
| 2357 vim_free(p); | |
| 2358 ++added; | |
| 648 | 2359 if (buf_empty && curbuf->b_ml.ml_line_count == 2) |
| 2360 { | |
| 2361 /* Added the first line into an empty buffer, need to | |
| 2362 * delete the dummy empty line. */ | |
| 2363 buf_empty = FALSE; | |
| 2364 ml_delete((linenr_T)2, FALSE); | |
| 2365 } | |
| 7 | 2366 } |
| 2367 } | |
| 2368 new_count = dp->df_count[idx_to] + added; | |
| 2369 dp->df_count[idx_to] = new_count; | |
| 2370 | |
| 2371 if (start_skip == 0 && end_skip == 0) | |
| 2372 { | |
| 2373 /* Check if there are any other buffers and if the diff is | |
| 2374 * equal in them. */ | |
| 2375 for (i = 0; i < DB_COUNT; ++i) | |
| 819 | 2376 if (curtab->tp_diffbuf[i] != NULL && i != idx_from |
| 2377 && i != idx_to | |
| 7 | 2378 && !diff_equal_entry(dp, idx_from, i)) |
| 2379 break; | |
| 2380 if (i == DB_COUNT) | |
| 2381 { | |
| 2382 /* delete the diff entry, the buffers are now equal here */ | |
| 2383 dfree = dp; | |
| 2384 dp = dp->df_next; | |
| 2385 if (dprev == NULL) | |
| 672 | 2386 curtab->tp_first_diff = dp; |
| 7 | 2387 else |
| 2388 dprev->df_next = dp; | |
| 2389 } | |
| 2390 } | |
| 2391 | |
| 2392 /* Adjust marks. This will change the following entries! */ | |
| 2393 if (added != 0) | |
| 2394 { | |
| 2395 mark_adjust(lnum, lnum + count - 1, (long)MAXLNUM, (long)added); | |
| 2396 if (curwin->w_cursor.lnum >= lnum) | |
| 2397 { | |
| 2398 /* Adjust the cursor position if it's in/after the changed | |
| 2399 * lines. */ | |
| 2400 if (curwin->w_cursor.lnum >= lnum + count) | |
| 2401 curwin->w_cursor.lnum += added; | |
| 2402 else if (added < 0) | |
| 2403 curwin->w_cursor.lnum = lnum; | |
| 2404 } | |
| 2405 } | |
| 2406 changed_lines(lnum, 0, lnum + count, (long)added); | |
| 2407 | |
| 2408 if (dfree != NULL) | |
| 2409 { | |
| 2410 /* Diff is deleted, update folds in other windows. */ | |
| 2411 #ifdef FEAT_FOLDING | |
| 2412 diff_fold_update(dfree, idx_to); | |
| 2413 #endif | |
| 2414 vim_free(dfree); | |
| 2415 } | |
| 2416 else | |
| 2417 /* mark_adjust() may have changed the count in a wrong way */ | |
| 2418 dp->df_count[idx_to] = new_count; | |
| 2419 | |
| 2420 /* When changing the current buffer, keep track of line numbers */ | |
| 2421 if (idx_cur == idx_to) | |
| 2422 off += added; | |
| 2423 } | |
| 2424 | |
| 2425 /* If before the range or not deleted, go to next diff. */ | |
| 2426 if (dfree == NULL) | |
| 2427 { | |
| 2428 dprev = dp; | |
| 2429 dp = dp->df_next; | |
| 2430 } | |
| 2431 } | |
| 2432 | |
| 2433 /* restore curwin/curbuf and a few other things */ | |
|
2445
04dae202d316
Fixes for coverity warnings.
Bram Moolenaar <bram@vim.org>
parents:
2250
diff
changeset
|
2434 if (eap->cmdidx != CMD_diffget) |
| 7 | 2435 { |
| 2436 /* Syncing undo only works for the current buffer, but we change | |
| 2437 * another buffer. Sync undo if the command was typed. This isn't | |
| 2438 * 100% right when ":diffput" is used in a function or mapping. */ | |
| 2439 if (KeyTyped) | |
| 825 | 2440 u_sync(FALSE); |
| 7 | 2441 aucmd_restbuf(&aco); |
| 2442 } | |
| 2443 | |
| 2444 diff_busy = FALSE; | |
| 2445 | |
| 2446 /* Check that the cursor is on a valid character and update it's position. | |
| 2447 * When there were filler lines the topline has become invalid. */ | |
| 2448 check_cursor(); | |
| 2449 changed_line_abv_curs(); | |
| 2450 | |
| 2451 /* Also need to redraw the other buffers. */ | |
| 2452 diff_redraw(FALSE); | |
| 2453 } | |
| 2454 | |
| 2455 #ifdef FEAT_FOLDING | |
| 2456 /* | |
| 2457 * Update folds for all diff buffers for entry "dp". | |
| 2458 * Skip buffer with index "skip_idx". | |
| 2459 * When there are no diffs, all folds are removed. | |
| 2460 */ | |
| 2461 static void | |
|
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2462 diff_fold_update(diff_T *dp, int skip_idx) |
| 7 | 2463 { |
| 2464 int i; | |
| 2465 win_T *wp; | |
| 2466 | |
|
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9487
diff
changeset
|
2467 FOR_ALL_WINDOWS(wp) |
| 7 | 2468 for (i = 0; i < DB_COUNT; ++i) |
| 672 | 2469 if (curtab->tp_diffbuf[i] == wp->w_buffer && i != skip_idx) |
| 7 | 2470 foldUpdate(wp, dp->df_lnum[i], |
| 2471 dp->df_lnum[i] + dp->df_count[i]); | |
| 2472 } | |
| 2473 #endif | |
| 2474 | |
| 2475 /* | |
| 2476 * Return TRUE if buffer "buf" is in diff-mode. | |
| 2477 */ | |
| 2478 int | |
|
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2479 diff_mode_buf(buf_T *buf) |
| 7 | 2480 { |
| 672 | 2481 tabpage_T *tp; |
| 2482 | |
|
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9487
diff
changeset
|
2483 FOR_ALL_TABPAGES(tp) |
| 672 | 2484 if (diff_buf_idx_tp(buf, tp) != DB_COUNT) |
| 2485 return TRUE; | |
| 2486 return FALSE; | |
| 7 | 2487 } |
| 2488 | |
| 2489 /* | |
| 2490 * Move "count" times in direction "dir" to the next diff block. | |
| 2491 * Return FAIL if there isn't such a diff block. | |
| 2492 */ | |
| 2493 int | |
|
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2494 diff_move_to(int dir, long count) |
| 7 | 2495 { |
| 2496 int idx; | |
| 2497 linenr_T lnum = curwin->w_cursor.lnum; | |
| 2498 diff_T *dp; | |
| 2499 | |
| 2500 idx = diff_buf_idx(curbuf); | |
| 672 | 2501 if (idx == DB_COUNT || curtab->tp_first_diff == NULL) |
| 7 | 2502 return FAIL; |
| 2503 | |
| 672 | 2504 if (curtab->tp_diff_invalid) |
| 7 | 2505 ex_diffupdate(NULL); /* update after a big change */ |
| 2506 | |
| 672 | 2507 if (curtab->tp_first_diff == NULL) /* no diffs today */ |
| 7 | 2508 return FAIL; |
| 2509 | |
| 2510 while (--count >= 0) | |
| 2511 { | |
| 2512 /* Check if already before first diff. */ | |
| 672 | 2513 if (dir == BACKWARD && lnum <= curtab->tp_first_diff->df_lnum[idx]) |
| 7 | 2514 break; |
| 2515 | |
| 672 | 2516 for (dp = curtab->tp_first_diff; ; dp = dp->df_next) |
| 7 | 2517 { |
| 2518 if (dp == NULL) | |
| 2519 break; | |
| 2520 if ((dir == FORWARD && lnum < dp->df_lnum[idx]) | |
| 2521 || (dir == BACKWARD | |
| 2522 && (dp->df_next == NULL | |
| 2523 || lnum <= dp->df_next->df_lnum[idx]))) | |
| 2524 { | |
| 2525 lnum = dp->df_lnum[idx]; | |
| 2526 break; | |
| 2527 } | |
| 2528 } | |
| 2529 } | |
| 2530 | |
| 2531 /* don't end up past the end of the file */ | |
| 2532 if (lnum > curbuf->b_ml.ml_line_count) | |
| 2533 lnum = curbuf->b_ml.ml_line_count; | |
| 2534 | |
| 2535 /* When the cursor didn't move at all we fail. */ | |
| 2536 if (lnum == curwin->w_cursor.lnum) | |
| 2537 return FAIL; | |
| 2538 | |
| 2539 setpcmark(); | |
| 2540 curwin->w_cursor.lnum = lnum; | |
| 2541 curwin->w_cursor.col = 0; | |
| 2542 | |
| 2543 return OK; | |
| 2544 } | |
| 2545 | |
|
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2546 /* |
|
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2547 * 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
|
2548 * "buf1" in diff mode. |
|
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2549 */ |
|
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2550 static linenr_T |
|
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2551 diff_get_corresponding_line_int( |
|
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2552 buf_T *buf1, |
|
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2553 linenr_T lnum1) |
|
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2554 { |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2555 int idx1; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2556 int idx2; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2557 diff_T *dp; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2558 int baseline = 0; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2559 |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2560 idx1 = diff_buf_idx(buf1); |
|
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2561 idx2 = diff_buf_idx(curbuf); |
|
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2562 if (idx1 == DB_COUNT || idx2 == DB_COUNT || curtab->tp_first_diff == NULL) |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2563 return lnum1; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2564 |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2565 if (curtab->tp_diff_invalid) |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2566 ex_diffupdate(NULL); /* update after a big change */ |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2567 |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2568 if (curtab->tp_first_diff == NULL) /* no diffs today */ |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2569 return lnum1; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2570 |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2571 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2572 { |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2573 if (dp->df_lnum[idx1] > lnum1) |
|
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2574 return lnum1 - baseline; |
|
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2575 if ((dp->df_lnum[idx1] + dp->df_count[idx1]) > lnum1) |
|
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2576 { |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2577 /* Inside the diffblock */ |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2578 baseline = lnum1 - dp->df_lnum[idx1]; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2579 if (baseline > dp->df_count[idx2]) |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2580 baseline = dp->df_count[idx2]; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2581 |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2582 return dp->df_lnum[idx2] + baseline; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2583 } |
|
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2584 if ( (dp->df_lnum[idx1] == lnum1) |
|
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2585 && (dp->df_count[idx1] == 0) |
|
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2586 && (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
|
2587 && ((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
|
2588 > curwin->w_cursor.lnum)) |
|
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2589 /* |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2086
diff
changeset
|
2590 * 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
|
2591 * 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
|
2592 * 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
|
2593 * unmoved. This makes repeated CTRL-W W operations work |
|
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2594 * as expected. |
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2595 */ |
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2596 return curwin->w_cursor.lnum; |
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2597 baseline = (dp->df_lnum[idx1] + dp->df_count[idx1]) |
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2598 - (dp->df_lnum[idx2] + dp->df_count[idx2]); |
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2599 } |
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2600 |
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2601 /* If we get here then the cursor is after the last diff */ |
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2602 return lnum1 - baseline; |
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2603 } |
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2604 |
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2605 /* |
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2606 * Return the line number in the current window that is closest to "lnum1" in |
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2607 * "buf1" in diff mode. Checks the line number to be valid. |
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2608 */ |
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2609 linenr_T |
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2610 diff_get_corresponding_line(buf_T *buf1, linenr_T lnum1) |
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2611 { |
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2612 linenr_T lnum = diff_get_corresponding_line_int(buf1, lnum1); |
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2613 |
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2614 /* don't end up past the end of the file */ |
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2615 if (lnum > curbuf->b_ml.ml_line_count) |
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2616 return curbuf->b_ml.ml_line_count; |
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2617 return lnum; |
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2618 } |
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2619 |
| 7 | 2620 /* |
| 2621 * For line "lnum" in the current window find the equivalent lnum in window | |
| 2622 * "wp", compensating for inserted/deleted lines. | |
| 2623 */ | |
| 2624 linenr_T | |
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2625 diff_lnum_win(linenr_T lnum, win_T *wp) |
| 7 | 2626 { |
| 2627 diff_T *dp; | |
| 2628 int idx; | |
| 2629 int i; | |
| 2630 linenr_T n; | |
| 2631 | |
| 2632 idx = diff_buf_idx(curbuf); | |
| 2633 if (idx == DB_COUNT) /* safety check */ | |
| 2634 return (linenr_T)0; | |
| 2635 | |
| 672 | 2636 if (curtab->tp_diff_invalid) |
| 7 | 2637 ex_diffupdate(NULL); /* update after a big change */ |
| 2638 | |
| 2639 /* search for a change that includes "lnum" in the list of diffblocks. */ | |
| 672 | 2640 for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next) |
| 7 | 2641 if (lnum <= dp->df_lnum[idx] + dp->df_count[idx]) |
| 2642 break; | |
| 2643 | |
| 2644 /* When after the last change, compute relative to the last line number. */ | |
| 2645 if (dp == NULL) | |
| 2646 return wp->w_buffer->b_ml.ml_line_count | |
| 2647 - (curbuf->b_ml.ml_line_count - lnum); | |
| 2648 | |
| 2649 /* Find index for "wp". */ | |
| 2650 i = diff_buf_idx(wp->w_buffer); | |
| 2651 if (i == DB_COUNT) /* safety check */ | |
| 2652 return (linenr_T)0; | |
| 2653 | |
| 2654 n = lnum + (dp->df_lnum[i] - dp->df_lnum[idx]); | |
| 2655 if (n > dp->df_lnum[i] + dp->df_count[i]) | |
| 2656 n = dp->df_lnum[i] + dp->df_count[i]; | |
| 2657 return n; | |
| 2658 } | |
| 2659 | |
| 2660 #endif /* FEAT_DIFF */ |