Mercurial > vim
annotate src/fold.c @ 18495:9a48788bc82e
Added tag v8.1.2241 for changeset 04a40c1514c489f8baebbb9db42cb457d4cfd6b3
author | Bram Moolenaar <Bram@vim.org> |
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date | Sat, 02 Nov 2019 22:15:06 +0100 |
parents | e0ec4cd7a865 |
children | 8f05b3cf8557 |
rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
7 | 2 * vim600:fdm=marker fdl=1 fdc=3: |
3 * | |
4 * VIM - Vi IMproved by Bram Moolenaar | |
5 * | |
6 * Do ":help uganda" in Vim to read copying and usage conditions. | |
7 * Do ":help credits" in Vim to see a list of people who contributed. | |
8 * See README.txt for an overview of the Vim source code. | |
9 */ | |
10 | |
11 /* | |
12 * fold.c: code for folding | |
13 */ | |
14 | |
15 #include "vim.h" | |
16 | |
17 #if defined(FEAT_FOLDING) || defined(PROTO) | |
18 | |
19 /* local declarations. {{{1 */ | |
20 /* typedef fold_T {{{2 */ | |
21 /* | |
22 * The toplevel folds for each window are stored in the w_folds growarray. | |
23 * Each toplevel fold can contain an array of second level folds in the | |
24 * fd_nested growarray. | |
25 * The info stored in both growarrays is the same: An array of fold_T. | |
26 */ | |
27 typedef struct | |
28 { | |
29 linenr_T fd_top; /* first line of fold; for nested fold | |
30 * relative to parent */ | |
31 linenr_T fd_len; /* number of lines in the fold */ | |
32 garray_T fd_nested; /* array of nested folds */ | |
33 char fd_flags; /* see below */ | |
34 char fd_small; /* TRUE, FALSE or MAYBE: fold smaller than | |
35 'foldminlines'; MAYBE applies to nested | |
36 folds too */ | |
37 } fold_T; | |
38 | |
39 #define FD_OPEN 0 /* fold is open (nested ones can be closed) */ | |
40 #define FD_CLOSED 1 /* fold is closed */ | |
41 #define FD_LEVEL 2 /* depends on 'foldlevel' (nested folds too) */ | |
42 | |
43 #define MAX_LEVEL 20 /* maximum fold depth */ | |
44 | |
45 /* static functions {{{2 */ | |
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46 static void newFoldLevelWin(win_T *wp); |
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47 static int checkCloseRec(garray_T *gap, linenr_T lnum, int level); |
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48 static int foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp); |
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49 static int foldLevelWin(win_T *wp, linenr_T lnum); |
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50 static void checkupdate(win_T *wp); |
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51 static void setFoldRepeat(linenr_T lnum, long count, int do_open); |
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52 static linenr_T setManualFold(linenr_T lnum, int opening, int recurse, int *donep); |
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53 static linenr_T setManualFoldWin(win_T *wp, linenr_T lnum, int opening, int recurse, int *donep); |
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54 static void foldOpenNested(fold_T *fpr); |
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55 static void deleteFoldEntry(garray_T *gap, int idx, int recursive); |
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56 static void foldMarkAdjustRecurse(garray_T *gap, linenr_T line1, linenr_T line2, long amount, long amount_after); |
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57 static int getDeepestNestingRecurse(garray_T *gap); |
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58 static int check_closed(win_T *win, fold_T *fp, int *use_levelp, int level, int *maybe_smallp, linenr_T lnum_off); |
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59 static void checkSmall(win_T *wp, fold_T *fp, linenr_T lnum_off); |
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60 static void setSmallMaybe(garray_T *gap); |
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61 static void foldCreateMarkers(linenr_T start, linenr_T end); |
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62 static void foldAddMarker(linenr_T lnum, char_u *marker, int markerlen); |
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63 static void deleteFoldMarkers(fold_T *fp, int recursive, linenr_T lnum_off); |
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64 static void foldDelMarker(linenr_T lnum, char_u *marker, int markerlen); |
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65 static void foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot); |
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66 static void parseMarker(win_T *wp); |
7 | 67 |
68 static char *e_nofold = N_("E490: No fold found"); | |
69 | |
70 /* | |
71 * While updating the folds lines between invalid_top and invalid_bot have an | |
72 * undefined fold level. Only used for the window currently being updated. | |
73 */ | |
74 static linenr_T invalid_top = (linenr_T)0; | |
75 static linenr_T invalid_bot = (linenr_T)0; | |
76 | |
77 /* | |
78 * When using 'foldexpr' we sometimes get the level of the next line, which | |
79 * calls foldlevel() to get the level of the current line, which hasn't been | |
80 * stored yet. To get around this chicken-egg problem the level of the | |
81 * previous line is stored here when available. prev_lnum is zero when the | |
82 * level is not available. | |
83 */ | |
84 static linenr_T prev_lnum = 0; | |
85 static int prev_lnum_lvl = -1; | |
86 | |
87 /* Flags used for "done" argument of setManualFold. */ | |
88 #define DONE_NOTHING 0 | |
89 #define DONE_ACTION 1 /* did close or open a fold */ | |
90 #define DONE_FOLD 2 /* did find a fold */ | |
91 | |
92 static int foldstartmarkerlen; | |
93 static char_u *foldendmarker; | |
94 static int foldendmarkerlen; | |
95 | |
96 /* Exported folding functions. {{{1 */ | |
97 /* copyFoldingState() {{{2 */ | |
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98 |
7 | 99 /* |
100 * Copy that folding state from window "wp_from" to window "wp_to". | |
101 */ | |
102 void | |
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103 copyFoldingState(win_T *wp_from, win_T *wp_to) |
7 | 104 { |
105 wp_to->w_fold_manual = wp_from->w_fold_manual; | |
106 wp_to->w_foldinvalid = wp_from->w_foldinvalid; | |
107 cloneFoldGrowArray(&wp_from->w_folds, &wp_to->w_folds); | |
108 } | |
109 | |
110 /* hasAnyFolding() {{{2 */ | |
111 /* | |
112 * Return TRUE if there may be folded lines in the current window. | |
113 */ | |
114 int | |
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115 hasAnyFolding(win_T *win) |
7 | 116 { |
117 /* very simple now, but can become more complex later */ | |
118 return (win->w_p_fen | |
119 && (!foldmethodIsManual(win) || win->w_folds.ga_len > 0)); | |
120 } | |
121 | |
122 /* hasFolding() {{{2 */ | |
123 /* | |
124 * Return TRUE if line "lnum" in the current window is part of a closed | |
125 * fold. | |
126 * When returning TRUE, *firstp and *lastp are set to the first and last | |
127 * lnum of the sequence of folded lines (skipped when NULL). | |
128 */ | |
129 int | |
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130 hasFolding(linenr_T lnum, linenr_T *firstp, linenr_T *lastp) |
7 | 131 { |
132 return hasFoldingWin(curwin, lnum, firstp, lastp, TRUE, NULL); | |
133 } | |
134 | |
135 /* hasFoldingWin() {{{2 */ | |
136 int | |
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137 hasFoldingWin( |
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138 win_T *win, |
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139 linenr_T lnum, |
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140 linenr_T *firstp, |
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141 linenr_T *lastp, |
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142 int cache, /* when TRUE: use cached values of window */ |
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143 foldinfo_T *infop) /* where to store fold info */ |
7 | 144 { |
145 int had_folded = FALSE; | |
146 linenr_T first = 0; | |
147 linenr_T last = 0; | |
148 linenr_T lnum_rel = lnum; | |
149 int x; | |
150 fold_T *fp; | |
151 int level = 0; | |
152 int use_level = FALSE; | |
153 int maybe_small = FALSE; | |
154 garray_T *gap; | |
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155 int low_level = 0; |
7 | 156 |
157 checkupdate(win); | |
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158 |
7 | 159 /* |
160 * Return quickly when there is no folding at all in this window. | |
161 */ | |
162 if (!hasAnyFolding(win)) | |
163 { | |
164 if (infop != NULL) | |
165 infop->fi_level = 0; | |
166 return FALSE; | |
167 } | |
168 | |
169 if (cache) | |
170 { | |
171 /* | |
172 * First look in cached info for displayed lines. This is probably | |
173 * the fastest, but it can only be used if the entry is still valid. | |
174 */ | |
175 x = find_wl_entry(win, lnum); | |
176 if (x >= 0) | |
177 { | |
178 first = win->w_lines[x].wl_lnum; | |
179 last = win->w_lines[x].wl_lastlnum; | |
180 had_folded = win->w_lines[x].wl_folded; | |
181 } | |
182 } | |
183 | |
184 if (first == 0) | |
185 { | |
186 /* | |
187 * Recursively search for a fold that contains "lnum". | |
188 */ | |
189 gap = &win->w_folds; | |
190 for (;;) | |
191 { | |
192 if (!foldFind(gap, lnum_rel, &fp)) | |
193 break; | |
194 | |
195 /* Remember lowest level of fold that starts in "lnum". */ | |
196 if (lnum_rel == fp->fd_top && low_level == 0) | |
197 low_level = level + 1; | |
198 | |
199 first += fp->fd_top; | |
200 last += fp->fd_top; | |
201 | |
202 /* is this fold closed? */ | |
203 had_folded = check_closed(win, fp, &use_level, level, | |
204 &maybe_small, lnum - lnum_rel); | |
205 if (had_folded) | |
206 { | |
207 /* Fold closed: Set last and quit loop. */ | |
208 last += fp->fd_len - 1; | |
209 break; | |
210 } | |
211 | |
212 /* Fold found, but it's open: Check nested folds. Line number is | |
213 * relative to containing fold. */ | |
214 gap = &fp->fd_nested; | |
215 lnum_rel -= fp->fd_top; | |
216 ++level; | |
217 } | |
218 } | |
219 | |
220 if (!had_folded) | |
221 { | |
222 if (infop != NULL) | |
223 { | |
224 infop->fi_level = level; | |
225 infop->fi_lnum = lnum - lnum_rel; | |
226 infop->fi_low_level = low_level == 0 ? level : low_level; | |
227 } | |
228 return FALSE; | |
229 } | |
230 | |
6753 | 231 if (last > win->w_buffer->b_ml.ml_line_count) |
232 last = win->w_buffer->b_ml.ml_line_count; | |
7 | 233 if (lastp != NULL) |
234 *lastp = last; | |
235 if (firstp != NULL) | |
236 *firstp = first; | |
237 if (infop != NULL) | |
238 { | |
239 infop->fi_level = level + 1; | |
240 infop->fi_lnum = first; | |
241 infop->fi_low_level = low_level == 0 ? level + 1 : low_level; | |
242 } | |
243 return TRUE; | |
244 } | |
245 | |
246 /* foldLevel() {{{2 */ | |
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247 #ifdef FEAT_EVAL |
7 | 248 /* |
249 * Return fold level at line number "lnum" in the current window. | |
250 */ | |
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251 static int |
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252 foldLevel(linenr_T lnum) |
7 | 253 { |
254 /* While updating the folds lines between invalid_top and invalid_bot have | |
255 * an undefined fold level. Otherwise update the folds first. */ | |
256 if (invalid_top == (linenr_T)0) | |
257 checkupdate(curwin); | |
258 else if (lnum == prev_lnum && prev_lnum_lvl >= 0) | |
259 return prev_lnum_lvl; | |
260 else if (lnum >= invalid_top && lnum <= invalid_bot) | |
261 return -1; | |
262 | |
263 /* Return quickly when there is no folding at all in this window. */ | |
264 if (!hasAnyFolding(curwin)) | |
265 return 0; | |
266 | |
267 return foldLevelWin(curwin, lnum); | |
268 } | |
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269 #endif |
7 | 270 |
271 /* lineFolded() {{{2 */ | |
272 /* | |
273 * Low level function to check if a line is folded. Doesn't use any caching. | |
274 * Return TRUE if line is folded. | |
275 * Return FALSE if line is not folded. | |
276 * Return MAYBE if the line is folded when next to a folded line. | |
277 */ | |
278 int | |
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279 lineFolded(win_T *win, linenr_T lnum) |
7 | 280 { |
281 return foldedCount(win, lnum, NULL) != 0; | |
282 } | |
283 | |
284 /* foldedCount() {{{2 */ | |
285 /* | |
286 * Count the number of lines that are folded at line number "lnum". | |
287 * Normally "lnum" is the first line of a possible fold, and the returned | |
288 * number is the number of lines in the fold. | |
289 * Doesn't use caching from the displayed window. | |
290 * Returns number of folded lines from "lnum", or 0 if line is not folded. | |
291 * When "infop" is not NULL, fills *infop with the fold level info. | |
292 */ | |
293 long | |
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294 foldedCount(win_T *win, linenr_T lnum, foldinfo_T *infop) |
7 | 295 { |
296 linenr_T last; | |
297 | |
298 if (hasFoldingWin(win, lnum, NULL, &last, FALSE, infop)) | |
299 return (long)(last - lnum + 1); | |
300 return 0; | |
301 } | |
302 | |
303 /* foldmethodIsManual() {{{2 */ | |
304 /* | |
305 * Return TRUE if 'foldmethod' is "manual" | |
306 */ | |
307 int | |
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308 foldmethodIsManual(win_T *wp) |
7 | 309 { |
310 return (wp->w_p_fdm[3] == 'u'); | |
311 } | |
312 | |
313 /* foldmethodIsIndent() {{{2 */ | |
314 /* | |
315 * Return TRUE if 'foldmethod' is "indent" | |
316 */ | |
317 int | |
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318 foldmethodIsIndent(win_T *wp) |
7 | 319 { |
320 return (wp->w_p_fdm[0] == 'i'); | |
321 } | |
322 | |
323 /* foldmethodIsExpr() {{{2 */ | |
324 /* | |
325 * Return TRUE if 'foldmethod' is "expr" | |
326 */ | |
327 int | |
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328 foldmethodIsExpr(win_T *wp) |
7 | 329 { |
330 return (wp->w_p_fdm[1] == 'x'); | |
331 } | |
332 | |
333 /* foldmethodIsMarker() {{{2 */ | |
334 /* | |
335 * Return TRUE if 'foldmethod' is "marker" | |
336 */ | |
337 int | |
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338 foldmethodIsMarker(win_T *wp) |
7 | 339 { |
340 return (wp->w_p_fdm[2] == 'r'); | |
341 } | |
342 | |
343 /* foldmethodIsSyntax() {{{2 */ | |
344 /* | |
345 * Return TRUE if 'foldmethod' is "syntax" | |
346 */ | |
347 int | |
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348 foldmethodIsSyntax(win_T *wp) |
7 | 349 { |
350 return (wp->w_p_fdm[0] == 's'); | |
351 } | |
352 | |
353 /* foldmethodIsDiff() {{{2 */ | |
354 /* | |
355 * Return TRUE if 'foldmethod' is "diff" | |
356 */ | |
357 int | |
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358 foldmethodIsDiff(win_T *wp) |
7 | 359 { |
360 return (wp->w_p_fdm[0] == 'd'); | |
361 } | |
362 | |
363 /* closeFold() {{{2 */ | |
364 /* | |
365 * Close fold for current window at line "lnum". | |
366 * Repeat "count" times. | |
367 */ | |
368 void | |
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369 closeFold(linenr_T lnum, long count) |
7 | 370 { |
371 setFoldRepeat(lnum, count, FALSE); | |
372 } | |
373 | |
374 /* closeFoldRecurse() {{{2 */ | |
375 /* | |
376 * Close fold for current window at line "lnum" recursively. | |
377 */ | |
378 void | |
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379 closeFoldRecurse(linenr_T lnum) |
7 | 380 { |
381 (void)setManualFold(lnum, FALSE, TRUE, NULL); | |
382 } | |
383 | |
384 /* opFoldRange() {{{2 */ | |
385 /* | |
386 * Open or Close folds for current window in lines "first" to "last". | |
387 * Used for "zo", "zO", "zc" and "zC" in Visual mode. | |
388 */ | |
389 void | |
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390 opFoldRange( |
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391 linenr_T first, |
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392 linenr_T last, |
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393 int opening, /* TRUE to open, FALSE to close */ |
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394 int recurse, /* TRUE to do it recursively */ |
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395 int had_visual) /* TRUE when Visual selection used */ |
7 | 396 { |
397 int done = DONE_NOTHING; /* avoid error messages */ | |
398 linenr_T lnum; | |
399 linenr_T lnum_next; | |
400 | |
401 for (lnum = first; lnum <= last; lnum = lnum_next + 1) | |
402 { | |
403 lnum_next = lnum; | |
404 /* Opening one level only: next fold to open is after the one going to | |
405 * be opened. */ | |
406 if (opening && !recurse) | |
407 (void)hasFolding(lnum, NULL, &lnum_next); | |
408 (void)setManualFold(lnum, opening, recurse, &done); | |
409 /* Closing one level only: next line to close a fold is after just | |
410 * closed fold. */ | |
411 if (!opening && !recurse) | |
412 (void)hasFolding(lnum, NULL, &lnum_next); | |
413 } | |
414 if (done == DONE_NOTHING) | |
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415 emsg(_(e_nofold)); |
7 | 416 /* Force a redraw to remove the Visual highlighting. */ |
417 if (had_visual) | |
418 redraw_curbuf_later(INVERTED); | |
419 } | |
420 | |
421 /* openFold() {{{2 */ | |
422 /* | |
423 * Open fold for current window at line "lnum". | |
424 * Repeat "count" times. | |
425 */ | |
426 void | |
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427 openFold(linenr_T lnum, long count) |
7 | 428 { |
429 setFoldRepeat(lnum, count, TRUE); | |
430 } | |
431 | |
432 /* openFoldRecurse() {{{2 */ | |
433 /* | |
434 * Open fold for current window at line "lnum" recursively. | |
435 */ | |
436 void | |
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437 openFoldRecurse(linenr_T lnum) |
7 | 438 { |
439 (void)setManualFold(lnum, TRUE, TRUE, NULL); | |
440 } | |
441 | |
442 /* foldOpenCursor() {{{2 */ | |
443 /* | |
444 * Open folds until the cursor line is not in a closed fold. | |
445 */ | |
446 void | |
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447 foldOpenCursor(void) |
7 | 448 { |
449 int done; | |
450 | |
451 checkupdate(curwin); | |
452 if (hasAnyFolding(curwin)) | |
453 for (;;) | |
454 { | |
455 done = DONE_NOTHING; | |
456 (void)setManualFold(curwin->w_cursor.lnum, TRUE, FALSE, &done); | |
457 if (!(done & DONE_ACTION)) | |
458 break; | |
459 } | |
460 } | |
461 | |
462 /* newFoldLevel() {{{2 */ | |
463 /* | |
464 * Set new foldlevel for current window. | |
465 */ | |
466 void | |
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467 newFoldLevel(void) |
7 | 468 { |
469 newFoldLevelWin(curwin); | |
470 | |
471 #ifdef FEAT_DIFF | |
472 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
473 { | |
474 win_T *wp; | |
475 | |
476 /* | |
477 * Set the same foldlevel in other windows in diff mode. | |
478 */ | |
479 FOR_ALL_WINDOWS(wp) | |
480 { | |
481 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
482 { | |
483 wp->w_p_fdl = curwin->w_p_fdl; | |
484 newFoldLevelWin(wp); | |
485 } | |
486 } | |
487 } | |
488 #endif | |
489 } | |
490 | |
491 static void | |
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492 newFoldLevelWin(win_T *wp) |
7 | 493 { |
494 fold_T *fp; | |
495 int i; | |
496 | |
497 checkupdate(wp); | |
498 if (wp->w_fold_manual) | |
499 { | |
500 /* Set all flags for the first level of folds to FD_LEVEL. Following | |
501 * manual open/close will then change the flags to FD_OPEN or | |
502 * FD_CLOSED for those folds that don't use 'foldlevel'. */ | |
503 fp = (fold_T *)wp->w_folds.ga_data; | |
504 for (i = 0; i < wp->w_folds.ga_len; ++i) | |
505 fp[i].fd_flags = FD_LEVEL; | |
506 wp->w_fold_manual = FALSE; | |
507 } | |
508 changed_window_setting_win(wp); | |
509 } | |
510 | |
511 /* foldCheckClose() {{{2 */ | |
512 /* | |
513 * Apply 'foldlevel' to all folds that don't contain the cursor. | |
514 */ | |
515 void | |
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516 foldCheckClose(void) |
7 | 517 { |
518 if (*p_fcl != NUL) /* can only be "all" right now */ | |
519 { | |
520 checkupdate(curwin); | |
521 if (checkCloseRec(&curwin->w_folds, curwin->w_cursor.lnum, | |
522 (int)curwin->w_p_fdl)) | |
523 changed_window_setting(); | |
524 } | |
525 } | |
526 | |
527 /* checkCloseRec() {{{2 */ | |
528 static int | |
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529 checkCloseRec(garray_T *gap, linenr_T lnum, int level) |
7 | 530 { |
531 fold_T *fp; | |
532 int retval = FALSE; | |
533 int i; | |
534 | |
535 fp = (fold_T *)gap->ga_data; | |
536 for (i = 0; i < gap->ga_len; ++i) | |
537 { | |
538 /* Only manually opened folds may need to be closed. */ | |
539 if (fp[i].fd_flags == FD_OPEN) | |
540 { | |
541 if (level <= 0 && (lnum < fp[i].fd_top | |
542 || lnum >= fp[i].fd_top + fp[i].fd_len)) | |
543 { | |
544 fp[i].fd_flags = FD_LEVEL; | |
545 retval = TRUE; | |
546 } | |
547 else | |
548 retval |= checkCloseRec(&fp[i].fd_nested, lnum - fp[i].fd_top, | |
549 level - 1); | |
550 } | |
551 } | |
552 return retval; | |
553 } | |
554 | |
555 /* foldCreateAllowed() {{{2 */ | |
556 /* | |
557 * Return TRUE if it's allowed to manually create or delete a fold. | |
558 * Give an error message and return FALSE if not. | |
559 */ | |
560 int | |
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561 foldManualAllowed(int create) |
7 | 562 { |
563 if (foldmethodIsManual(curwin) || foldmethodIsMarker(curwin)) | |
564 return TRUE; | |
565 if (create) | |
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566 emsg(_("E350: Cannot create fold with current 'foldmethod'")); |
7 | 567 else |
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568 emsg(_("E351: Cannot delete fold with current 'foldmethod'")); |
7 | 569 return FALSE; |
570 } | |
571 | |
572 /* foldCreate() {{{2 */ | |
573 /* | |
574 * Create a fold from line "start" to line "end" (inclusive) in the current | |
575 * window. | |
576 */ | |
577 void | |
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578 foldCreate(linenr_T start, linenr_T end) |
7 | 579 { |
580 fold_T *fp; | |
581 garray_T *gap; | |
582 garray_T fold_ga; | |
583 int i, j; | |
584 int cont; | |
585 int use_level = FALSE; | |
586 int closed = FALSE; | |
587 int level = 0; | |
588 linenr_T start_rel = start; | |
589 linenr_T end_rel = end; | |
590 | |
591 if (start > end) | |
592 { | |
593 /* reverse the range */ | |
594 end = start_rel; | |
595 start = end_rel; | |
596 start_rel = start; | |
597 end_rel = end; | |
598 } | |
599 | |
600 /* When 'foldmethod' is "marker" add markers, which creates the folds. */ | |
601 if (foldmethodIsMarker(curwin)) | |
602 { | |
603 foldCreateMarkers(start, end); | |
604 return; | |
605 } | |
606 | |
607 checkupdate(curwin); | |
608 | |
609 /* Find the place to insert the new fold. */ | |
610 gap = &curwin->w_folds; | |
611 for (;;) | |
612 { | |
613 if (!foldFind(gap, start_rel, &fp)) | |
614 break; | |
615 if (fp->fd_top + fp->fd_len > end_rel) | |
616 { | |
617 /* New fold is completely inside this fold: Go one level deeper. */ | |
618 gap = &fp->fd_nested; | |
619 start_rel -= fp->fd_top; | |
620 end_rel -= fp->fd_top; | |
621 if (use_level || fp->fd_flags == FD_LEVEL) | |
622 { | |
623 use_level = TRUE; | |
624 if (level >= curwin->w_p_fdl) | |
625 closed = TRUE; | |
626 } | |
627 else if (fp->fd_flags == FD_CLOSED) | |
628 closed = TRUE; | |
629 ++level; | |
630 } | |
631 else | |
632 { | |
633 /* This fold and new fold overlap: Insert here and move some folds | |
634 * inside the new fold. */ | |
635 break; | |
636 } | |
637 } | |
638 | |
639 i = (int)(fp - (fold_T *)gap->ga_data); | |
640 if (ga_grow(gap, 1) == OK) | |
641 { | |
642 fp = (fold_T *)gap->ga_data + i; | |
643 ga_init2(&fold_ga, (int)sizeof(fold_T), 10); | |
644 | |
645 /* Count number of folds that will be contained in the new fold. */ | |
646 for (cont = 0; i + cont < gap->ga_len; ++cont) | |
647 if (fp[cont].fd_top > end_rel) | |
648 break; | |
649 if (cont > 0 && ga_grow(&fold_ga, cont) == OK) | |
650 { | |
651 /* If the first fold starts before the new fold, let the new fold | |
652 * start there. Otherwise the existing fold would change. */ | |
653 if (start_rel > fp->fd_top) | |
654 start_rel = fp->fd_top; | |
655 | |
656 /* When last contained fold isn't completely contained, adjust end | |
657 * of new fold. */ | |
658 if (end_rel < fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1) | |
659 end_rel = fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1; | |
660 /* Move contained folds to inside new fold. */ | |
661 mch_memmove(fold_ga.ga_data, fp, sizeof(fold_T) * cont); | |
662 fold_ga.ga_len += cont; | |
663 i += cont; | |
664 | |
665 /* Adjust line numbers in contained folds to be relative to the | |
666 * new fold. */ | |
667 for (j = 0; j < cont; ++j) | |
668 ((fold_T *)fold_ga.ga_data)[j].fd_top -= start_rel; | |
669 } | |
670 /* Move remaining entries to after the new fold. */ | |
671 if (i < gap->ga_len) | |
672 mch_memmove(fp + 1, (fold_T *)gap->ga_data + i, | |
673 sizeof(fold_T) * (gap->ga_len - i)); | |
674 gap->ga_len = gap->ga_len + 1 - cont; | |
675 | |
676 /* insert new fold */ | |
677 fp->fd_nested = fold_ga; | |
678 fp->fd_top = start_rel; | |
679 fp->fd_len = end_rel - start_rel + 1; | |
680 | |
681 /* We want the new fold to be closed. If it would remain open because | |
682 * of using 'foldlevel', need to adjust fd_flags of containing folds. | |
683 */ | |
684 if (use_level && !closed && level < curwin->w_p_fdl) | |
685 closeFold(start, 1L); | |
686 if (!use_level) | |
687 curwin->w_fold_manual = TRUE; | |
688 fp->fd_flags = FD_CLOSED; | |
689 fp->fd_small = MAYBE; | |
690 | |
691 /* redraw */ | |
692 changed_window_setting(); | |
693 } | |
694 } | |
695 | |
696 /* deleteFold() {{{2 */ | |
697 /* | |
698 * Delete a fold at line "start" in the current window. | |
699 * When "end" is not 0, delete all folds from "start" to "end". | |
700 * When "recursive" is TRUE delete recursively. | |
701 */ | |
702 void | |
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703 deleteFold( |
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704 linenr_T start, |
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705 linenr_T end, |
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706 int recursive, |
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707 int had_visual) /* TRUE when Visual selection used */ |
7 | 708 { |
709 garray_T *gap; | |
710 fold_T *fp; | |
711 garray_T *found_ga; | |
712 fold_T *found_fp = NULL; | |
713 linenr_T found_off = 0; | |
1780 | 714 int use_level; |
7 | 715 int maybe_small = FALSE; |
716 int level = 0; | |
717 linenr_T lnum = start; | |
718 linenr_T lnum_off; | |
719 int did_one = FALSE; | |
720 linenr_T first_lnum = MAXLNUM; | |
721 linenr_T last_lnum = 0; | |
722 | |
723 checkupdate(curwin); | |
724 | |
725 while (lnum <= end) | |
726 { | |
727 /* Find the deepest fold for "start". */ | |
728 gap = &curwin->w_folds; | |
729 found_ga = NULL; | |
730 lnum_off = 0; | |
1780 | 731 use_level = FALSE; |
7 | 732 for (;;) |
733 { | |
734 if (!foldFind(gap, lnum - lnum_off, &fp)) | |
735 break; | |
736 /* lnum is inside this fold, remember info */ | |
737 found_ga = gap; | |
738 found_fp = fp; | |
739 found_off = lnum_off; | |
740 | |
741 /* if "lnum" is folded, don't check nesting */ | |
742 if (check_closed(curwin, fp, &use_level, level, | |
743 &maybe_small, lnum_off)) | |
744 break; | |
745 | |
746 /* check nested folds */ | |
747 gap = &fp->fd_nested; | |
748 lnum_off += fp->fd_top; | |
749 ++level; | |
750 } | |
751 if (found_ga == NULL) | |
752 { | |
753 ++lnum; | |
754 } | |
755 else | |
756 { | |
757 lnum = found_fp->fd_top + found_fp->fd_len + found_off; | |
758 | |
759 if (foldmethodIsManual(curwin)) | |
760 deleteFoldEntry(found_ga, | |
761 (int)(found_fp - (fold_T *)found_ga->ga_data), recursive); | |
762 else | |
763 { | |
1780 | 764 if (first_lnum > found_fp->fd_top + found_off) |
765 first_lnum = found_fp->fd_top + found_off; | |
766 if (last_lnum < lnum) | |
7 | 767 last_lnum = lnum; |
1780 | 768 if (!did_one) |
769 parseMarker(curwin); | |
7 | 770 deleteFoldMarkers(found_fp, recursive, found_off); |
771 } | |
1780 | 772 did_one = TRUE; |
7 | 773 |
774 /* redraw window */ | |
775 changed_window_setting(); | |
776 } | |
777 } | |
778 if (!did_one) | |
779 { | |
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780 emsg(_(e_nofold)); |
7 | 781 /* Force a redraw to remove the Visual highlighting. */ |
782 if (had_visual) | |
783 redraw_curbuf_later(INVERTED); | |
784 } | |
1780 | 785 else |
786 /* Deleting markers may make cursor column invalid. */ | |
787 check_cursor_col(); | |
788 | |
7 | 789 if (last_lnum > 0) |
790 changed_lines(first_lnum, (colnr_T)0, last_lnum, 0L); | |
791 } | |
792 | |
793 /* clearFolding() {{{2 */ | |
794 /* | |
795 * Remove all folding for window "win". | |
796 */ | |
797 void | |
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798 clearFolding(win_T *win) |
7 | 799 { |
800 deleteFoldRecurse(&win->w_folds); | |
801 win->w_foldinvalid = FALSE; | |
802 } | |
803 | |
804 /* foldUpdate() {{{2 */ | |
805 /* | |
806 * Update folds for changes in the buffer of a window. | |
807 * Note that inserted/deleted lines must have already been taken care of by | |
808 * calling foldMarkAdjust(). | |
809 * The changes in lines from top to bot (inclusive). | |
810 */ | |
811 void | |
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812 foldUpdate(win_T *wp, linenr_T top, linenr_T bot) |
7 | 813 { |
814 fold_T *fp; | |
815 | |
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816 if (disable_fold_update > 0) |
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817 return; |
17851
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818 #ifdef FEAT_DIFF |
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819 if (need_diff_redraw) |
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820 // will update later |
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821 return; |
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822 #endif |
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823 |
7 | 824 /* Mark all folds from top to bot as maybe-small. */ |
6755 | 825 (void)foldFind(&wp->w_folds, top, &fp); |
826 while (fp < (fold_T *)wp->w_folds.ga_data + wp->w_folds.ga_len | |
7 | 827 && fp->fd_top < bot) |
828 { | |
829 fp->fd_small = MAYBE; | |
830 ++fp; | |
831 } | |
832 | |
833 if (foldmethodIsIndent(wp) | |
834 || foldmethodIsExpr(wp) | |
835 || foldmethodIsMarker(wp) | |
836 #ifdef FEAT_DIFF | |
837 || foldmethodIsDiff(wp) | |
838 #endif | |
839 || foldmethodIsSyntax(wp)) | |
1424 | 840 { |
841 int save_got_int = got_int; | |
842 | |
843 /* reset got_int here, otherwise it won't work */ | |
844 got_int = FALSE; | |
7 | 845 foldUpdateIEMS(wp, top, bot); |
1424 | 846 got_int |= save_got_int; |
847 } | |
7 | 848 } |
849 | |
850 /* foldUpdateAll() {{{2 */ | |
851 /* | |
852 * Update all lines in a window for folding. | |
853 * Used when a fold setting changes or after reloading the buffer. | |
854 * The actual updating is postponed until fold info is used, to avoid doing | |
855 * every time a setting is changed or a syntax item is added. | |
856 */ | |
857 void | |
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858 foldUpdateAll(win_T *win) |
7 | 859 { |
860 win->w_foldinvalid = TRUE; | |
861 redraw_win_later(win, NOT_VALID); | |
862 } | |
863 | |
864 /* foldMoveTo() {{{2 */ | |
865 /* | |
866 * If "updown" is FALSE: Move to the start or end of the fold. | |
867 * If "updown" is TRUE: move to fold at the same level. | |
868 * If not moved return FAIL. | |
869 */ | |
870 int | |
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871 foldMoveTo( |
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872 int updown, |
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873 int dir, /* FORWARD or BACKWARD */ |
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874 long count) |
7 | 875 { |
876 long n; | |
877 int retval = FAIL; | |
878 linenr_T lnum_off; | |
879 linenr_T lnum_found; | |
880 linenr_T lnum; | |
881 int use_level; | |
882 int maybe_small; | |
883 garray_T *gap; | |
884 fold_T *fp; | |
885 int level; | |
886 int last; | |
887 | |
36 | 888 checkupdate(curwin); |
889 | |
7 | 890 /* Repeat "count" times. */ |
891 for (n = 0; n < count; ++n) | |
892 { | |
893 /* Find nested folds. Stop when a fold is closed. The deepest fold | |
894 * that moves the cursor is used. */ | |
895 lnum_off = 0; | |
896 gap = &curwin->w_folds; | |
897 use_level = FALSE; | |
898 maybe_small = FALSE; | |
899 lnum_found = curwin->w_cursor.lnum; | |
900 level = 0; | |
901 last = FALSE; | |
902 for (;;) | |
903 { | |
904 if (!foldFind(gap, curwin->w_cursor.lnum - lnum_off, &fp)) | |
905 { | |
906 if (!updown) | |
907 break; | |
908 | |
909 /* When moving up, consider a fold above the cursor; when | |
910 * moving down consider a fold below the cursor. */ | |
911 if (dir == FORWARD) | |
912 { | |
913 if (fp - (fold_T *)gap->ga_data >= gap->ga_len) | |
914 break; | |
915 --fp; | |
916 } | |
917 else | |
918 { | |
919 if (fp == (fold_T *)gap->ga_data) | |
920 break; | |
921 } | |
922 /* don't look for contained folds, they will always move | |
923 * the cursor too far. */ | |
924 last = TRUE; | |
925 } | |
926 | |
927 if (!last) | |
928 { | |
929 /* Check if this fold is closed. */ | |
930 if (check_closed(curwin, fp, &use_level, level, | |
931 &maybe_small, lnum_off)) | |
932 last = TRUE; | |
933 | |
934 /* "[z" and "]z" stop at closed fold */ | |
935 if (last && !updown) | |
936 break; | |
937 } | |
938 | |
939 if (updown) | |
940 { | |
941 if (dir == FORWARD) | |
942 { | |
943 /* to start of next fold if there is one */ | |
944 if (fp + 1 - (fold_T *)gap->ga_data < gap->ga_len) | |
945 { | |
946 lnum = fp[1].fd_top + lnum_off; | |
947 if (lnum > curwin->w_cursor.lnum) | |
948 lnum_found = lnum; | |
949 } | |
950 } | |
951 else | |
952 { | |
953 /* to end of previous fold if there is one */ | |
954 if (fp > (fold_T *)gap->ga_data) | |
955 { | |
956 lnum = fp[-1].fd_top + lnum_off + fp[-1].fd_len - 1; | |
957 if (lnum < curwin->w_cursor.lnum) | |
958 lnum_found = lnum; | |
959 } | |
960 } | |
961 } | |
962 else | |
963 { | |
964 /* Open fold found, set cursor to its start/end and then check | |
965 * nested folds. */ | |
966 if (dir == FORWARD) | |
967 { | |
968 lnum = fp->fd_top + lnum_off + fp->fd_len - 1; | |
969 if (lnum > curwin->w_cursor.lnum) | |
970 lnum_found = lnum; | |
971 } | |
972 else | |
973 { | |
974 lnum = fp->fd_top + lnum_off; | |
975 if (lnum < curwin->w_cursor.lnum) | |
976 lnum_found = lnum; | |
977 } | |
978 } | |
979 | |
980 if (last) | |
981 break; | |
982 | |
983 /* Check nested folds (if any). */ | |
984 gap = &fp->fd_nested; | |
985 lnum_off += fp->fd_top; | |
986 ++level; | |
987 } | |
988 if (lnum_found != curwin->w_cursor.lnum) | |
989 { | |
990 if (retval == FAIL) | |
991 setpcmark(); | |
992 curwin->w_cursor.lnum = lnum_found; | |
993 curwin->w_cursor.col = 0; | |
994 retval = OK; | |
995 } | |
996 else | |
997 break; | |
998 } | |
999 | |
1000 return retval; | |
1001 } | |
1002 | |
1003 /* foldInitWin() {{{2 */ | |
1004 /* | |
1005 * Init the fold info in a new window. | |
1006 */ | |
1007 void | |
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1008 foldInitWin(win_T *new_win) |
7 | 1009 { |
3263 | 1010 ga_init2(&new_win->w_folds, (int)sizeof(fold_T), 10); |
7 | 1011 } |
1012 | |
1013 /* find_wl_entry() {{{2 */ | |
1014 /* | |
1015 * Find an entry in the win->w_lines[] array for buffer line "lnum". | |
1016 * Only valid entries are considered (for entries where wl_valid is FALSE the | |
1017 * line number can be wrong). | |
1018 * Returns index of entry or -1 if not found. | |
1019 */ | |
1020 int | |
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1021 find_wl_entry(win_T *win, linenr_T lnum) |
7 | 1022 { |
1023 int i; | |
1024 | |
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1025 for (i = 0; i < win->w_lines_valid; ++i) |
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1026 if (win->w_lines[i].wl_valid) |
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1027 { |
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1028 if (lnum < win->w_lines[i].wl_lnum) |
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1029 return -1; |
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1030 if (lnum <= win->w_lines[i].wl_lastlnum) |
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1031 return i; |
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1032 } |
7 | 1033 return -1; |
1034 } | |
1035 | |
1036 /* foldAdjustVisual() {{{2 */ | |
1037 /* | |
1038 * Adjust the Visual area to include any fold at the start or end completely. | |
1039 */ | |
1040 void | |
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1041 foldAdjustVisual(void) |
7 | 1042 { |
1043 pos_T *start, *end; | |
1044 char_u *ptr; | |
1045 | |
1046 if (!VIsual_active || !hasAnyFolding(curwin)) | |
1047 return; | |
1048 | |
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1049 if (LTOREQ_POS(VIsual, curwin->w_cursor)) |
7 | 1050 { |
1051 start = &VIsual; | |
1052 end = &curwin->w_cursor; | |
1053 } | |
1054 else | |
1055 { | |
1056 start = &curwin->w_cursor; | |
1057 end = &VIsual; | |
1058 } | |
1059 if (hasFolding(start->lnum, &start->lnum, NULL)) | |
1060 start->col = 0; | |
1061 if (hasFolding(end->lnum, NULL, &end->lnum)) | |
1062 { | |
1063 ptr = ml_get(end->lnum); | |
1064 end->col = (colnr_T)STRLEN(ptr); | |
1065 if (end->col > 0 && *p_sel == 'o') | |
1066 --end->col; | |
1067 /* prevent cursor from moving on the trail byte */ | |
1068 if (has_mbyte) | |
1069 mb_adjust_cursor(); | |
1070 } | |
1071 } | |
1072 | |
1073 /* cursor_foldstart() {{{2 */ | |
1074 /* | |
1075 * Move the cursor to the first line of a closed fold. | |
1076 */ | |
1077 void | |
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1078 foldAdjustCursor(void) |
7 | 1079 { |
1080 (void)hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL); | |
1081 } | |
1082 | |
1083 /* Internal functions for "fold_T" {{{1 */ | |
1084 /* cloneFoldGrowArray() {{{2 */ | |
1085 /* | |
1086 * Will "clone" (i.e deep copy) a garray_T of folds. | |
1087 * | |
1088 * Return FAIL if the operation cannot be completed, otherwise OK. | |
1089 */ | |
1090 void | |
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1091 cloneFoldGrowArray(garray_T *from, garray_T *to) |
7 | 1092 { |
1093 int i; | |
1094 fold_T *from_p; | |
1095 fold_T *to_p; | |
1096 | |
1097 ga_init2(to, from->ga_itemsize, from->ga_growsize); | |
1098 if (from->ga_len == 0 || ga_grow(to, from->ga_len) == FAIL) | |
1099 return; | |
1100 | |
1101 from_p = (fold_T *)from->ga_data; | |
1102 to_p = (fold_T *)to->ga_data; | |
1103 | |
1104 for (i = 0; i < from->ga_len; i++) | |
1105 { | |
1106 to_p->fd_top = from_p->fd_top; | |
1107 to_p->fd_len = from_p->fd_len; | |
1108 to_p->fd_flags = from_p->fd_flags; | |
1109 to_p->fd_small = from_p->fd_small; | |
1110 cloneFoldGrowArray(&from_p->fd_nested, &to_p->fd_nested); | |
1111 ++to->ga_len; | |
1112 ++from_p; | |
1113 ++to_p; | |
1114 } | |
1115 } | |
1116 | |
1117 /* foldFind() {{{2 */ | |
1118 /* | |
1119 * Search for line "lnum" in folds of growarray "gap". | |
1120 * Set *fpp to the fold struct for the fold that contains "lnum" or | |
1121 * the first fold below it (careful: it can be beyond the end of the array!). | |
1122 * Returns FALSE when there is no fold that contains "lnum". | |
1123 */ | |
1124 static int | |
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1125 foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp) |
7 | 1126 { |
1127 linenr_T low, high; | |
1128 fold_T *fp; | |
1129 int i; | |
1130 | |
1131 /* | |
1132 * Perform a binary search. | |
1133 * "low" is lowest index of possible match. | |
1134 * "high" is highest index of possible match. | |
1135 */ | |
1136 fp = (fold_T *)gap->ga_data; | |
1137 low = 0; | |
1138 high = gap->ga_len - 1; | |
1139 while (low <= high) | |
1140 { | |
1141 i = (low + high) / 2; | |
1142 if (fp[i].fd_top > lnum) | |
1143 /* fold below lnum, adjust high */ | |
1144 high = i - 1; | |
1145 else if (fp[i].fd_top + fp[i].fd_len <= lnum) | |
1146 /* fold above lnum, adjust low */ | |
1147 low = i + 1; | |
1148 else | |
1149 { | |
1150 /* lnum is inside this fold */ | |
1151 *fpp = fp + i; | |
1152 return TRUE; | |
1153 } | |
1154 } | |
1155 *fpp = fp + low; | |
1156 return FALSE; | |
1157 } | |
1158 | |
1159 /* foldLevelWin() {{{2 */ | |
1160 /* | |
1161 * Return fold level at line number "lnum" in window "wp". | |
1162 */ | |
1163 static int | |
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1164 foldLevelWin(win_T *wp, linenr_T lnum) |
7 | 1165 { |
1166 fold_T *fp; | |
1167 linenr_T lnum_rel = lnum; | |
1168 int level = 0; | |
1169 garray_T *gap; | |
1170 | |
1171 /* Recursively search for a fold that contains "lnum". */ | |
1172 gap = &wp->w_folds; | |
1173 for (;;) | |
1174 { | |
1175 if (!foldFind(gap, lnum_rel, &fp)) | |
1176 break; | |
1177 /* Check nested folds. Line number is relative to containing fold. */ | |
1178 gap = &fp->fd_nested; | |
1179 lnum_rel -= fp->fd_top; | |
1180 ++level; | |
1181 } | |
1182 | |
1183 return level; | |
1184 } | |
1185 | |
1186 /* checkupdate() {{{2 */ | |
1187 /* | |
1188 * Check if the folds in window "wp" are invalid and update them if needed. | |
1189 */ | |
1190 static void | |
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1191 checkupdate(win_T *wp) |
7 | 1192 { |
1193 if (wp->w_foldinvalid) | |
1194 { | |
1195 foldUpdate(wp, (linenr_T)1, (linenr_T)MAXLNUM); /* will update all */ | |
1196 wp->w_foldinvalid = FALSE; | |
1197 } | |
1198 } | |
1199 | |
1200 /* setFoldRepeat() {{{2 */ | |
1201 /* | |
1202 * Open or close fold for current window at line "lnum". | |
1203 * Repeat "count" times. | |
1204 */ | |
1205 static void | |
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1206 setFoldRepeat(linenr_T lnum, long count, int do_open) |
7 | 1207 { |
1208 int done; | |
1209 long n; | |
1210 | |
1211 for (n = 0; n < count; ++n) | |
1212 { | |
1213 done = DONE_NOTHING; | |
1757 | 1214 (void)setManualFold(lnum, do_open, FALSE, &done); |
7 | 1215 if (!(done & DONE_ACTION)) |
1216 { | |
1217 /* Only give an error message when no fold could be opened. */ | |
1218 if (n == 0 && !(done & DONE_FOLD)) | |
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1219 emsg(_(e_nofold)); |
7 | 1220 break; |
1221 } | |
1222 } | |
1223 } | |
1224 | |
1225 /* setManualFold() {{{2 */ | |
1226 /* | |
1227 * Open or close the fold in the current window which contains "lnum". | |
1228 * Also does this for other windows in diff mode when needed. | |
1229 */ | |
1230 static linenr_T | |
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1231 setManualFold( |
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1232 linenr_T lnum, |
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1233 int opening, /* TRUE when opening, FALSE when closing */ |
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1234 int recurse, /* TRUE when closing/opening recursive */ |
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1235 int *donep) |
7 | 1236 { |
1237 #ifdef FEAT_DIFF | |
1238 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
1239 { | |
1240 win_T *wp; | |
1241 linenr_T dlnum; | |
1242 | |
1243 /* | |
1244 * Do the same operation in other windows in diff mode. Calculate the | |
1245 * line number from the diffs. | |
1246 */ | |
1247 FOR_ALL_WINDOWS(wp) | |
1248 { | |
1249 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
1250 { | |
1251 dlnum = diff_lnum_win(curwin->w_cursor.lnum, wp); | |
1252 if (dlnum != 0) | |
1253 (void)setManualFoldWin(wp, dlnum, opening, recurse, NULL); | |
1254 } | |
1255 } | |
1256 } | |
1257 #endif | |
1258 | |
1259 return setManualFoldWin(curwin, lnum, opening, recurse, donep); | |
1260 } | |
1261 | |
1262 /* setManualFoldWin() {{{2 */ | |
1263 /* | |
1264 * Open or close the fold in window "wp" which contains "lnum". | |
1265 * "donep", when not NULL, points to flag that is set to DONE_FOLD when some | |
1266 * fold was found and to DONE_ACTION when some fold was opened or closed. | |
1267 * When "donep" is NULL give an error message when no fold was found for | |
1268 * "lnum", but only if "wp" is "curwin". | |
1269 * Return the line number of the next line that could be closed. | |
1270 * It's only valid when "opening" is TRUE! | |
1271 */ | |
1272 static linenr_T | |
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diff
changeset
|
1273 setManualFoldWin( |
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|
1274 win_T *wp, |
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|
1275 linenr_T lnum, |
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|
1276 int opening, /* TRUE when opening, FALSE when closing */ |
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diff
changeset
|
1277 int recurse, /* TRUE when closing/opening recursive */ |
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changeset
|
1278 int *donep) |
7 | 1279 { |
1280 fold_T *fp; | |
1281 fold_T *fp2; | |
1282 fold_T *found = NULL; | |
1283 int j; | |
1284 int level = 0; | |
1285 int use_level = FALSE; | |
1286 int found_fold = FALSE; | |
1287 garray_T *gap; | |
1288 linenr_T next = MAXLNUM; | |
1289 linenr_T off = 0; | |
1290 int done = 0; | |
1291 | |
1292 checkupdate(wp); | |
1293 | |
1294 /* | |
1295 * Find the fold, open or close it. | |
1296 */ | |
1297 gap = &wp->w_folds; | |
1298 for (;;) | |
1299 { | |
1300 if (!foldFind(gap, lnum, &fp)) | |
1301 { | |
1302 /* If there is a following fold, continue there next time. */ | |
1303 if (fp < (fold_T *)gap->ga_data + gap->ga_len) | |
1304 next = fp->fd_top + off; | |
1305 break; | |
1306 } | |
1307 | |
1308 /* lnum is inside this fold */ | |
1309 found_fold = TRUE; | |
1310 | |
1311 /* If there is a following fold, continue there next time. */ | |
1312 if (fp + 1 < (fold_T *)gap->ga_data + gap->ga_len) | |
1313 next = fp[1].fd_top + off; | |
1314 | |
1315 /* Change from level-dependent folding to manual. */ | |
1316 if (use_level || fp->fd_flags == FD_LEVEL) | |
1317 { | |
1318 use_level = TRUE; | |
1319 if (level >= wp->w_p_fdl) | |
1320 fp->fd_flags = FD_CLOSED; | |
1321 else | |
1322 fp->fd_flags = FD_OPEN; | |
1323 fp2 = (fold_T *)fp->fd_nested.ga_data; | |
1324 for (j = 0; j < fp->fd_nested.ga_len; ++j) | |
1325 fp2[j].fd_flags = FD_LEVEL; | |
1326 } | |
1327 | |
1328 /* Simple case: Close recursively means closing the fold. */ | |
1329 if (!opening && recurse) | |
1330 { | |
1331 if (fp->fd_flags != FD_CLOSED) | |
1332 { | |
1333 done |= DONE_ACTION; | |
1334 fp->fd_flags = FD_CLOSED; | |
1335 } | |
1336 } | |
1337 else if (fp->fd_flags == FD_CLOSED) | |
1338 { | |
1339 /* When opening, open topmost closed fold. */ | |
1340 if (opening) | |
1341 { | |
1342 fp->fd_flags = FD_OPEN; | |
1343 done |= DONE_ACTION; | |
1344 if (recurse) | |
1345 foldOpenNested(fp); | |
1346 } | |
1347 break; | |
1348 } | |
1349 | |
1350 /* fold is open, check nested folds */ | |
1351 found = fp; | |
1352 gap = &fp->fd_nested; | |
1353 lnum -= fp->fd_top; | |
1354 off += fp->fd_top; | |
1355 ++level; | |
1356 } | |
1357 if (found_fold) | |
1358 { | |
1359 /* When closing and not recurse, close deepest open fold. */ | |
1360 if (!opening && found != NULL) | |
1361 { | |
1362 found->fd_flags = FD_CLOSED; | |
1363 done |= DONE_ACTION; | |
1364 } | |
1365 wp->w_fold_manual = TRUE; | |
1366 if (done & DONE_ACTION) | |
1367 changed_window_setting_win(wp); | |
1368 done |= DONE_FOLD; | |
1369 } | |
1370 else if (donep == NULL && wp == curwin) | |
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1371 emsg(_(e_nofold)); |
7 | 1372 |
1373 if (donep != NULL) | |
1374 *donep |= done; | |
1375 | |
1376 return next; | |
1377 } | |
1378 | |
1379 /* foldOpenNested() {{{2 */ | |
1380 /* | |
1381 * Open all nested folds in fold "fpr" recursively. | |
1382 */ | |
1383 static void | |
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changeset
|
1384 foldOpenNested(fold_T *fpr) |
7 | 1385 { |
1386 int i; | |
1387 fold_T *fp; | |
1388 | |
1389 fp = (fold_T *)fpr->fd_nested.ga_data; | |
1390 for (i = 0; i < fpr->fd_nested.ga_len; ++i) | |
1391 { | |
1392 foldOpenNested(&fp[i]); | |
1393 fp[i].fd_flags = FD_OPEN; | |
1394 } | |
1395 } | |
1396 | |
1397 /* deleteFoldEntry() {{{2 */ | |
1398 /* | |
1399 * Delete fold "idx" from growarray "gap". | |
1400 * When "recursive" is TRUE also delete all the folds contained in it. | |
1401 * When "recursive" is FALSE contained folds are moved one level up. | |
1402 */ | |
1403 static void | |
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1404 deleteFoldEntry(garray_T *gap, int idx, int recursive) |
7 | 1405 { |
1406 fold_T *fp; | |
1407 int i; | |
1408 long moved; | |
1409 fold_T *nfp; | |
1410 | |
1411 fp = (fold_T *)gap->ga_data + idx; | |
1412 if (recursive || fp->fd_nested.ga_len == 0) | |
1413 { | |
1414 /* recursively delete the contained folds */ | |
1415 deleteFoldRecurse(&fp->fd_nested); | |
1416 --gap->ga_len; | |
1417 if (idx < gap->ga_len) | |
1418 mch_memmove(fp, fp + 1, sizeof(fold_T) * (gap->ga_len - idx)); | |
1419 } | |
1420 else | |
1421 { | |
3028 | 1422 /* Move nested folds one level up, to overwrite the fold that is |
7 | 1423 * deleted. */ |
1424 moved = fp->fd_nested.ga_len; | |
1425 if (ga_grow(gap, (int)(moved - 1)) == OK) | |
1426 { | |
3028 | 1427 /* Get "fp" again, the array may have been reallocated. */ |
1428 fp = (fold_T *)gap->ga_data + idx; | |
1429 | |
7 | 1430 /* adjust fd_top and fd_flags for the moved folds */ |
1431 nfp = (fold_T *)fp->fd_nested.ga_data; | |
1432 for (i = 0; i < moved; ++i) | |
1433 { | |
1434 nfp[i].fd_top += fp->fd_top; | |
1435 if (fp->fd_flags == FD_LEVEL) | |
1436 nfp[i].fd_flags = FD_LEVEL; | |
1437 if (fp->fd_small == MAYBE) | |
1438 nfp[i].fd_small = MAYBE; | |
1439 } | |
1440 | |
1441 /* move the existing folds down to make room */ | |
3028 | 1442 if (idx + 1 < gap->ga_len) |
7 | 1443 mch_memmove(fp + moved, fp + 1, |
3028 | 1444 sizeof(fold_T) * (gap->ga_len - (idx + 1))); |
7 | 1445 /* move the contained folds one level up */ |
1446 mch_memmove(fp, nfp, (size_t)(sizeof(fold_T) * moved)); | |
1447 vim_free(nfp); | |
1448 gap->ga_len += moved - 1; | |
1449 } | |
1450 } | |
1451 } | |
1452 | |
1453 /* deleteFoldRecurse() {{{2 */ | |
1454 /* | |
1455 * Delete nested folds in a fold. | |
1456 */ | |
1457 void | |
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1458 deleteFoldRecurse(garray_T *gap) |
7 | 1459 { |
1460 int i; | |
1461 | |
1462 for (i = 0; i < gap->ga_len; ++i) | |
1463 deleteFoldRecurse(&(((fold_T *)(gap->ga_data))[i].fd_nested)); | |
1464 ga_clear(gap); | |
1465 } | |
1466 | |
1467 /* foldMarkAdjust() {{{2 */ | |
1468 /* | |
1469 * Update line numbers of folds for inserted/deleted lines. | |
1470 */ | |
1471 void | |
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1472 foldMarkAdjust( |
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1473 win_T *wp, |
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1474 linenr_T line1, |
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1475 linenr_T line2, |
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1476 long amount, |
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1477 long amount_after) |
7 | 1478 { |
1479 /* If deleting marks from line1 to line2, but not deleting all those | |
1480 * lines, set line2 so that only deleted lines have their folds removed. */ | |
1481 if (amount == MAXLNUM && line2 >= line1 && line2 - line1 >= -amount_after) | |
1482 line2 = line1 - amount_after - 1; | |
1483 /* If appending a line in Insert mode, it should be included in the fold | |
1484 * just above the line. */ | |
1485 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) | |
1486 --line1; | |
1487 foldMarkAdjustRecurse(&wp->w_folds, line1, line2, amount, amount_after); | |
1488 } | |
1489 | |
1490 /* foldMarkAdjustRecurse() {{{2 */ | |
1491 static void | |
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1492 foldMarkAdjustRecurse( |
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1493 garray_T *gap, |
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1494 linenr_T line1, |
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1495 linenr_T line2, |
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1496 long amount, |
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1497 long amount_after) |
7 | 1498 { |
1499 fold_T *fp; | |
1500 int i; | |
1501 linenr_T last; | |
1502 linenr_T top; | |
1503 | |
1504 /* In Insert mode an inserted line at the top of a fold is considered part | |
1505 * of the fold, otherwise it isn't. */ | |
1506 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) | |
1507 top = line1 + 1; | |
1508 else | |
1509 top = line1; | |
1510 | |
1511 /* Find the fold containing or just below "line1". */ | |
1512 (void)foldFind(gap, line1, &fp); | |
1513 | |
1514 /* | |
1515 * Adjust all folds below "line1" that are affected. | |
1516 */ | |
1517 for (i = (int)(fp - (fold_T *)gap->ga_data); i < gap->ga_len; ++i, ++fp) | |
1518 { | |
1519 /* | |
1520 * Check for these situations: | |
1521 * 1 2 3 | |
1522 * 1 2 3 | |
1523 * line1 2 3 4 5 | |
1524 * 2 3 4 5 | |
1525 * 2 3 4 5 | |
1526 * line2 2 3 4 5 | |
1527 * 3 5 6 | |
1528 * 3 5 6 | |
1529 */ | |
1530 | |
1531 last = fp->fd_top + fp->fd_len - 1; /* last line of fold */ | |
1532 | |
1533 /* 1. fold completely above line1: nothing to do */ | |
1534 if (last < line1) | |
1535 continue; | |
1536 | |
1537 /* 6. fold below line2: only adjust for amount_after */ | |
1538 if (fp->fd_top > line2) | |
1539 { | |
1540 if (amount_after == 0) | |
1541 break; | |
1542 fp->fd_top += amount_after; | |
1543 } | |
1544 else | |
1545 { | |
1546 if (fp->fd_top >= top && last <= line2) | |
1547 { | |
1548 /* 4. fold completely contained in range */ | |
1549 if (amount == MAXLNUM) | |
1550 { | |
1551 /* Deleting lines: delete the fold completely */ | |
1552 deleteFoldEntry(gap, i, TRUE); | |
1553 --i; /* adjust index for deletion */ | |
1554 --fp; | |
1555 } | |
1556 else | |
1557 fp->fd_top += amount; | |
1558 } | |
1559 else | |
1560 { | |
1561 if (fp->fd_top < top) | |
1562 { | |
1964 | 1563 /* 2 or 3: need to correct nested folds too */ |
1564 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, | |
1565 line2 - fp->fd_top, amount, amount_after); | |
7 | 1566 if (last <= line2) |
1567 { | |
1568 /* 2. fold contains line1, line2 is below fold */ | |
1569 if (amount == MAXLNUM) | |
1570 fp->fd_len = line1 - fp->fd_top; | |
1571 else | |
1572 fp->fd_len += amount; | |
1573 } | |
1574 else | |
1575 { | |
1576 /* 3. fold contains line1 and line2 */ | |
1577 fp->fd_len += amount_after; | |
1578 } | |
1579 } | |
1580 else | |
1581 { | |
1964 | 1582 /* 5. fold is below line1 and contains line2; need to |
1583 * correct nested folds too */ | |
7 | 1584 if (amount == MAXLNUM) |
1585 { | |
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1586 foldMarkAdjustRecurse(&fp->fd_nested, |
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1587 line1 - fp->fd_top, |
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1588 line2 - fp->fd_top, |
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1589 amount, |
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1590 amount_after + (fp->fd_top - top)); |
7 | 1591 fp->fd_len -= line2 - fp->fd_top + 1; |
1592 fp->fd_top = line1; | |
1593 } | |
1594 else | |
1595 { | |
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1596 foldMarkAdjustRecurse(&fp->fd_nested, |
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1597 line1 - fp->fd_top, |
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1598 line2 - fp->fd_top, |
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1599 amount, |
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1600 amount_after - amount); |
7 | 1601 fp->fd_len += amount_after - amount; |
1602 fp->fd_top += amount; | |
1603 } | |
1604 } | |
1605 } | |
1606 } | |
1607 } | |
1608 } | |
1609 | |
1610 /* getDeepestNesting() {{{2 */ | |
1611 /* | |
1612 * Get the lowest 'foldlevel' value that makes the deepest nested fold in the | |
1613 * current window open. | |
1614 */ | |
1615 int | |
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1616 getDeepestNesting(void) |
7 | 1617 { |
1618 checkupdate(curwin); | |
1619 return getDeepestNestingRecurse(&curwin->w_folds); | |
1620 } | |
1621 | |
1622 static int | |
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1623 getDeepestNestingRecurse(garray_T *gap) |
7 | 1624 { |
1625 int i; | |
1626 int level; | |
1627 int maxlevel = 0; | |
1628 fold_T *fp; | |
1629 | |
1630 fp = (fold_T *)gap->ga_data; | |
1631 for (i = 0; i < gap->ga_len; ++i) | |
1632 { | |
1633 level = getDeepestNestingRecurse(&fp[i].fd_nested) + 1; | |
1634 if (level > maxlevel) | |
1635 maxlevel = level; | |
1636 } | |
1637 | |
1638 return maxlevel; | |
1639 } | |
1640 | |
1641 /* check_closed() {{{2 */ | |
1642 /* | |
1643 * Check if a fold is closed and update the info needed to check nested folds. | |
1644 */ | |
1645 static int | |
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1646 check_closed( |
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1647 win_T *win, |
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1648 fold_T *fp, |
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1649 int *use_levelp, /* TRUE: outer fold had FD_LEVEL */ |
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1650 int level, /* folding depth */ |
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1651 int *maybe_smallp, /* TRUE: outer this had fd_small == MAYBE */ |
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1652 linenr_T lnum_off) /* line number offset for fp->fd_top */ |
7 | 1653 { |
1654 int closed = FALSE; | |
1655 | |
1656 /* Check if this fold is closed. If the flag is FD_LEVEL this | |
1657 * fold and all folds it contains depend on 'foldlevel'. */ | |
1658 if (*use_levelp || fp->fd_flags == FD_LEVEL) | |
1659 { | |
1660 *use_levelp = TRUE; | |
1661 if (level >= win->w_p_fdl) | |
1662 closed = TRUE; | |
1663 } | |
1664 else if (fp->fd_flags == FD_CLOSED) | |
1665 closed = TRUE; | |
1666 | |
1667 /* Small fold isn't closed anyway. */ | |
1668 if (fp->fd_small == MAYBE) | |
1669 *maybe_smallp = TRUE; | |
1670 if (closed) | |
1671 { | |
1672 if (*maybe_smallp) | |
1673 fp->fd_small = MAYBE; | |
1674 checkSmall(win, fp, lnum_off); | |
1675 if (fp->fd_small == TRUE) | |
1676 closed = FALSE; | |
1677 } | |
1678 return closed; | |
1679 } | |
1680 | |
1681 /* checkSmall() {{{2 */ | |
1682 /* | |
1683 * Update fd_small field of fold "fp". | |
1684 */ | |
1685 static void | |
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1686 checkSmall( |
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1687 win_T *wp, |
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1688 fold_T *fp, |
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1689 linenr_T lnum_off) /* offset for fp->fd_top */ |
7 | 1690 { |
1691 int count; | |
1692 int n; | |
1693 | |
1694 if (fp->fd_small == MAYBE) | |
1695 { | |
1696 /* Mark any nested folds to maybe-small */ | |
1697 setSmallMaybe(&fp->fd_nested); | |
1698 | |
1699 if (fp->fd_len > curwin->w_p_fml) | |
1700 fp->fd_small = FALSE; | |
1701 else | |
1702 { | |
1703 count = 0; | |
1704 for (n = 0; n < fp->fd_len; ++n) | |
1705 { | |
1706 count += plines_win_nofold(wp, fp->fd_top + lnum_off + n); | |
1707 if (count > curwin->w_p_fml) | |
1708 { | |
1709 fp->fd_small = FALSE; | |
1710 return; | |
1711 } | |
1712 } | |
1713 fp->fd_small = TRUE; | |
1714 } | |
1715 } | |
1716 } | |
1717 | |
1718 /* setSmallMaybe() {{{2 */ | |
1719 /* | |
1720 * Set small flags in "gap" to MAYBE. | |
1721 */ | |
1722 static void | |
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1723 setSmallMaybe(garray_T *gap) |
7 | 1724 { |
1725 int i; | |
1726 fold_T *fp; | |
1727 | |
1728 fp = (fold_T *)gap->ga_data; | |
1729 for (i = 0; i < gap->ga_len; ++i) | |
1730 fp[i].fd_small = MAYBE; | |
1731 } | |
1732 | |
1733 /* foldCreateMarkers() {{{2 */ | |
1734 /* | |
1735 * Create a fold from line "start" to line "end" (inclusive) in the current | |
1736 * window by adding markers. | |
1737 */ | |
1738 static void | |
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1739 foldCreateMarkers(linenr_T start, linenr_T end) |
7 | 1740 { |
1741 if (!curbuf->b_p_ma) | |
1742 { | |
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1743 emsg(_(e_modifiable)); |
7 | 1744 return; |
1745 } | |
1746 parseMarker(curwin); | |
1747 | |
1748 foldAddMarker(start, curwin->w_p_fmr, foldstartmarkerlen); | |
1749 foldAddMarker(end, foldendmarker, foldendmarkerlen); | |
1750 | |
1751 /* Update both changes here, to avoid all folds after the start are | |
1752 * changed when the start marker is inserted and the end isn't. */ | |
1753 changed_lines(start, (colnr_T)0, end, 0L); | |
1754 } | |
1755 | |
1756 /* foldAddMarker() {{{2 */ | |
1757 /* | |
1758 * Add "marker[markerlen]" in 'commentstring' to line "lnum". | |
1759 */ | |
1760 static void | |
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1761 foldAddMarker(linenr_T lnum, char_u *marker, int markerlen) |
7 | 1762 { |
1763 char_u *cms = curbuf->b_p_cms; | |
1764 char_u *line; | |
1765 int line_len; | |
1766 char_u *newline; | |
1767 char_u *p = (char_u *)strstr((char *)curbuf->b_p_cms, "%s"); | |
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1768 int line_is_comment = FALSE; |
7 | 1769 |
1770 /* Allocate a new line: old-line + 'cms'-start + marker + 'cms'-end */ | |
1771 line = ml_get(lnum); | |
1772 line_len = (int)STRLEN(line); | |
1773 | |
1774 if (u_save(lnum - 1, lnum + 1) == OK) | |
1775 { | |
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1776 /* Check if the line ends with an unclosed comment */ |
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1777 (void)skip_comment(line, FALSE, FALSE, &line_is_comment); |
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1778 newline = alloc(line_len + markerlen + STRLEN(cms) + 1); |
7 | 1779 if (newline == NULL) |
1780 return; | |
1781 STRCPY(newline, line); | |
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1782 /* Append the marker to the end of the line */ |
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1783 if (p == NULL || line_is_comment) |
419 | 1784 vim_strncpy(newline + line_len, marker, markerlen); |
7 | 1785 else |
1786 { | |
1787 STRCPY(newline + line_len, cms); | |
1788 STRNCPY(newline + line_len + (p - cms), marker, markerlen); | |
1789 STRCPY(newline + line_len + (p - cms) + markerlen, p + 2); | |
1790 } | |
1791 | |
1792 ml_replace(lnum, newline, FALSE); | |
1793 } | |
1794 } | |
1795 | |
1796 /* deleteFoldMarkers() {{{2 */ | |
1797 /* | |
1798 * Delete the markers for a fold, causing it to be deleted. | |
1799 */ | |
1800 static void | |
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1801 deleteFoldMarkers( |
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1802 fold_T *fp, |
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1803 int recursive, |
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1804 linenr_T lnum_off) /* offset for fp->fd_top */ |
7 | 1805 { |
1806 int i; | |
1807 | |
1808 if (recursive) | |
1809 for (i = 0; i < fp->fd_nested.ga_len; ++i) | |
1810 deleteFoldMarkers((fold_T *)fp->fd_nested.ga_data + i, TRUE, | |
1811 lnum_off + fp->fd_top); | |
1812 foldDelMarker(fp->fd_top + lnum_off, curwin->w_p_fmr, foldstartmarkerlen); | |
1813 foldDelMarker(fp->fd_top + lnum_off + fp->fd_len - 1, | |
1814 foldendmarker, foldendmarkerlen); | |
1815 } | |
1816 | |
1817 /* foldDelMarker() {{{2 */ | |
1818 /* | |
1819 * Delete marker "marker[markerlen]" at the end of line "lnum". | |
1820 * Delete 'commentstring' if it matches. | |
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1821 * If the marker is not found, there is no error message. Could be a missing |
7 | 1822 * close-marker. |
1823 */ | |
1824 static void | |
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1825 foldDelMarker(linenr_T lnum, char_u *marker, int markerlen) |
7 | 1826 { |
1827 char_u *line; | |
1828 char_u *newline; | |
1829 char_u *p; | |
1830 int len; | |
1831 char_u *cms = curbuf->b_p_cms; | |
1832 char_u *cms2; | |
1833 | |
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1834 // end marker may be missing and fold extends below the last line |
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1835 if (lnum > curbuf->b_ml.ml_line_count) |
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1836 return; |
7 | 1837 line = ml_get(lnum); |
1838 for (p = line; *p != NUL; ++p) | |
1839 if (STRNCMP(p, marker, markerlen) == 0) | |
1840 { | |
1841 /* Found the marker, include a digit if it's there. */ | |
1842 len = markerlen; | |
1843 if (VIM_ISDIGIT(p[len])) | |
1844 ++len; | |
1845 if (*cms != NUL) | |
1846 { | |
1847 /* Also delete 'commentstring' if it matches. */ | |
1848 cms2 = (char_u *)strstr((char *)cms, "%s"); | |
1849 if (p - line >= cms2 - cms | |
1850 && STRNCMP(p - (cms2 - cms), cms, cms2 - cms) == 0 | |
1851 && STRNCMP(p + len, cms2 + 2, STRLEN(cms2 + 2)) == 0) | |
1852 { | |
1853 p -= cms2 - cms; | |
1854 len += (int)STRLEN(cms) - 2; | |
1855 } | |
1856 } | |
1857 if (u_save(lnum - 1, lnum + 1) == OK) | |
1858 { | |
1859 /* Make new line: text-before-marker + text-after-marker */ | |
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1860 newline = alloc(STRLEN(line) - len + 1); |
7 | 1861 if (newline != NULL) |
1862 { | |
1863 STRNCPY(newline, line, p - line); | |
1864 STRCPY(newline + (p - line), p + len); | |
1865 ml_replace(lnum, newline, FALSE); | |
1866 } | |
1867 } | |
1868 break; | |
1869 } | |
1870 } | |
1871 | |
29 | 1872 /* get_foldtext() {{{2 */ |
1873 /* | |
1874 * Return the text for a closed fold at line "lnum", with last line "lnume". | |
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1875 * When 'foldtext' isn't set puts the result in "buf[FOLD_TEXT_LEN]". |
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1876 * Otherwise the result is in allocated memory. |
29 | 1877 */ |
1878 char_u * | |
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1879 get_foldtext( |
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1880 win_T *wp, |
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1881 linenr_T lnum, |
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1882 linenr_T lnume, |
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1883 foldinfo_T *foldinfo, |
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1884 char_u *buf) |
29 | 1885 { |
1886 char_u *text = NULL; | |
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1887 #ifdef FEAT_EVAL |
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1888 /* an error occurred when evaluating 'fdt' setting */ |
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1889 static int got_fdt_error = FALSE; |
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1890 int save_did_emsg = did_emsg; |
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1891 static win_T *last_wp = NULL; |
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1892 static linenr_T last_lnum = 0; |
29 | 1893 |
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1894 if (last_wp != wp || last_wp == NULL |
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1895 || last_lnum > lnum || last_lnum == 0) |
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1896 /* window changed, try evaluating foldtext setting once again */ |
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1897 got_fdt_error = FALSE; |
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1898 |
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1899 if (!got_fdt_error) |
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1900 /* a previous error should not abort evaluating 'foldexpr' */ |
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1901 did_emsg = FALSE; |
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1902 |
29 | 1903 if (*wp->w_p_fdt != NUL) |
1904 { | |
1981 | 1905 char_u dashes[MAX_LEVEL + 2]; |
29 | 1906 win_T *save_curwin; |
1907 int level; | |
1908 char_u *p; | |
1909 | |
1910 /* Set "v:foldstart" and "v:foldend". */ | |
1911 set_vim_var_nr(VV_FOLDSTART, lnum); | |
1912 set_vim_var_nr(VV_FOLDEND, lnume); | |
1913 | |
1914 /* Set "v:folddashes" to a string of "level" dashes. */ | |
1915 /* Set "v:foldlevel" to "level". */ | |
1916 level = foldinfo->fi_level; | |
1981 | 1917 if (level > (int)sizeof(dashes) - 1) |
1918 level = (int)sizeof(dashes) - 1; | |
29 | 1919 vim_memset(dashes, '-', (size_t)level); |
1920 dashes[level] = NUL; | |
1921 set_vim_var_string(VV_FOLDDASHES, dashes, -1); | |
1922 set_vim_var_nr(VV_FOLDLEVEL, (long)level); | |
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1923 |
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1924 /* skip evaluating foldtext on errors */ |
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1925 if (!got_fdt_error) |
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1926 { |
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1927 save_curwin = curwin; |
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1928 curwin = wp; |
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1929 curbuf = wp->w_buffer; |
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1930 |
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1931 ++emsg_silent; /* handle exceptions, but don't display errors */ |
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1932 text = eval_to_string_safe(wp->w_p_fdt, NULL, |
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1933 was_set_insecurely((char_u *)"foldtext", OPT_LOCAL)); |
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1934 --emsg_silent; |
29 | 1935 |
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1936 if (text == NULL || did_emsg) |
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1937 got_fdt_error = TRUE; |
29 | 1938 |
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1939 curwin = save_curwin; |
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1940 curbuf = curwin->w_buffer; |
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1941 } |
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1942 last_lnum = lnum; |
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1943 last_wp = wp; |
29 | 1944 set_vim_var_string(VV_FOLDDASHES, NULL, -1); |
1945 | |
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1946 if (!did_emsg && save_did_emsg) |
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1947 did_emsg = save_did_emsg; |
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1948 |
29 | 1949 if (text != NULL) |
1950 { | |
1951 /* Replace unprintable characters, if there are any. But | |
1952 * replace a TAB with a space. */ | |
1953 for (p = text; *p != NUL; ++p) | |
1954 { | |
33 | 1955 int len; |
1956 | |
474 | 1957 if (has_mbyte && (len = (*mb_ptr2len)(p)) > 1) |
29 | 1958 { |
1959 if (!vim_isprintc((*mb_ptr2char)(p))) | |
1960 break; | |
1961 p += len - 1; | |
1962 } | |
1963 else | |
1964 if (*p == TAB) | |
1965 *p = ' '; | |
1966 else if (ptr2cells(p) > 1) | |
1967 break; | |
1968 } | |
1969 if (*p != NUL) | |
1970 { | |
1971 p = transstr(text); | |
1972 vim_free(text); | |
1973 text = p; | |
1974 } | |
1975 } | |
1976 } | |
1977 if (text == NULL) | |
1978 #endif | |
1979 { | |
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1980 long count = (long)(lnume - lnum + 1); |
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1981 |
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1982 vim_snprintf((char *)buf, FOLD_TEXT_LEN, |
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1983 NGETTEXT("+--%3ld line folded ", |
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1984 "+--%3ld lines folded ", count), |
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1985 count); |
29 | 1986 text = buf; |
1987 } | |
1988 return text; | |
1989 } | |
1990 | |
7 | 1991 /* foldtext_cleanup() {{{2 */ |
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1992 #ifdef FEAT_EVAL |
7 | 1993 /* |
1994 * Remove 'foldmarker' and 'commentstring' from "str" (in-place). | |
1995 */ | |
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1996 static void |
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1997 foldtext_cleanup(char_u *str) |
7 | 1998 { |
1999 char_u *cms_start; /* first part or the whole comment */ | |
2000 int cms_slen = 0; /* length of cms_start */ | |
2001 char_u *cms_end; /* last part of the comment or NULL */ | |
2002 int cms_elen = 0; /* length of cms_end */ | |
2003 char_u *s; | |
45 | 2004 char_u *p; |
7 | 2005 int len; |
2006 int did1 = FALSE; | |
2007 int did2 = FALSE; | |
2008 | |
2009 /* Ignore leading and trailing white space in 'commentstring'. */ | |
2010 cms_start = skipwhite(curbuf->b_p_cms); | |
835 | 2011 cms_slen = (int)STRLEN(cms_start); |
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2012 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
7 | 2013 --cms_slen; |
2014 | |
2015 /* locate "%s" in 'commentstring', use the part before and after it. */ | |
2016 cms_end = (char_u *)strstr((char *)cms_start, "%s"); | |
2017 if (cms_end != NULL) | |
2018 { | |
835 | 2019 cms_elen = cms_slen - (int)(cms_end - cms_start); |
2020 cms_slen = (int)(cms_end - cms_start); | |
7 | 2021 |
2022 /* exclude white space before "%s" */ | |
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2023 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
7 | 2024 --cms_slen; |
2025 | |
2026 /* skip "%s" and white space after it */ | |
2027 s = skipwhite(cms_end + 2); | |
835 | 2028 cms_elen -= (int)(s - cms_end); |
7 | 2029 cms_end = s; |
2030 } | |
2031 parseMarker(curwin); | |
2032 | |
2033 for (s = str; *s != NUL; ) | |
2034 { | |
2035 len = 0; | |
2036 if (STRNCMP(s, curwin->w_p_fmr, foldstartmarkerlen) == 0) | |
45 | 2037 len = foldstartmarkerlen; |
2038 else if (STRNCMP(s, foldendmarker, foldendmarkerlen) == 0) | |
2039 len = foldendmarkerlen; | |
2040 if (len > 0) | |
7 | 2041 { |
2042 if (VIM_ISDIGIT(s[len])) | |
2043 ++len; | |
45 | 2044 |
2045 /* May remove 'commentstring' start. Useful when it's a double | |
2046 * quote and we already removed a double quote. */ | |
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2047 for (p = s; p > str && VIM_ISWHITE(p[-1]); --p) |
45 | 2048 ; |
2049 if (p >= str + cms_slen | |
2050 && STRNCMP(p - cms_slen, cms_start, cms_slen) == 0) | |
2051 { | |
835 | 2052 len += (int)(s - p) + cms_slen; |
45 | 2053 s = p - cms_slen; |
2054 } | |
7 | 2055 } |
2056 else if (cms_end != NULL) | |
2057 { | |
45 | 2058 if (!did1 && cms_slen > 0 && STRNCMP(s, cms_start, cms_slen) == 0) |
7 | 2059 { |
2060 len = cms_slen; | |
2061 did1 = TRUE; | |
2062 } | |
45 | 2063 else if (!did2 && cms_elen > 0 |
2064 && STRNCMP(s, cms_end, cms_elen) == 0) | |
7 | 2065 { |
2066 len = cms_elen; | |
2067 did2 = TRUE; | |
2068 } | |
2069 } | |
2070 if (len != 0) | |
2071 { | |
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2072 while (VIM_ISWHITE(s[len])) |
7 | 2073 ++len; |
1624 | 2074 STRMOVE(s, s + len); |
7 | 2075 } |
2076 else | |
2077 { | |
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2078 MB_PTR_ADV(s); |
7 | 2079 } |
2080 } | |
2081 } | |
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2082 #endif |
7 | 2083 |
2084 /* Folding by indent, expr, marker and syntax. {{{1 */ | |
2085 /* Define "fline_T", passed to get fold level for a line. {{{2 */ | |
2086 typedef struct | |
2087 { | |
2088 win_T *wp; /* window */ | |
2089 linenr_T lnum; /* current line number */ | |
2090 linenr_T off; /* offset between lnum and real line number */ | |
2091 linenr_T lnum_save; /* line nr used by foldUpdateIEMSRecurse() */ | |
2092 int lvl; /* current level (-1 for undefined) */ | |
2093 int lvl_next; /* level used for next line */ | |
2094 int start; /* number of folds that are forced to start at | |
2095 this line. */ | |
2096 int end; /* level of fold that is forced to end below | |
2097 this line */ | |
2098 int had_end; /* level of fold that is forced to end above | |
2099 this line (copy of "end" of prev. line) */ | |
2100 } fline_T; | |
2101 | |
2102 /* Flag is set when redrawing is needed. */ | |
2103 static int fold_changed; | |
2104 | |
2105 /* Function declarations. {{{2 */ | |
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2106 static linenr_T foldUpdateIEMSRecurse(garray_T *gap, int level, linenr_T startlnum, fline_T *flp, void (*getlevel)(fline_T *), linenr_T bot, int topflags); |
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2107 static int foldInsert(garray_T *gap, int i); |
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2108 static void foldSplit(garray_T *gap, int i, linenr_T top, linenr_T bot); |
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2109 static void foldRemove(garray_T *gap, linenr_T top, linenr_T bot); |
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2110 static void foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2); |
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2111 static void foldlevelIndent(fline_T *flp); |
7 | 2112 #ifdef FEAT_DIFF |
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2113 static void foldlevelDiff(fline_T *flp); |
7 | 2114 #endif |
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2115 static void foldlevelExpr(fline_T *flp); |
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2116 static void foldlevelMarker(fline_T *flp); |
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2117 static void foldlevelSyntax(fline_T *flp); |
7 | 2118 |
2119 /* foldUpdateIEMS() {{{2 */ | |
2120 /* | |
2121 * Update the folding for window "wp", at least from lines "top" to "bot". | |
2122 * Return TRUE if any folds did change. | |
2123 */ | |
2124 static void | |
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2125 foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot) |
7 | 2126 { |
2127 linenr_T start; | |
2128 linenr_T end; | |
2129 fline_T fline; | |
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2130 void (*getlevel)(fline_T *); |
7 | 2131 int level; |
2132 fold_T *fp; | |
2133 | |
2134 /* Avoid problems when being called recursively. */ | |
2135 if (invalid_top != (linenr_T)0) | |
2136 return; | |
2137 | |
2138 if (wp->w_foldinvalid) | |
2139 { | |
2140 /* Need to update all folds. */ | |
2141 top = 1; | |
2142 bot = wp->w_buffer->b_ml.ml_line_count; | |
2143 wp->w_foldinvalid = FALSE; | |
2144 | |
2145 /* Mark all folds a maybe-small. */ | |
2146 setSmallMaybe(&wp->w_folds); | |
2147 } | |
2148 | |
2149 #ifdef FEAT_DIFF | |
2150 /* add the context for "diff" folding */ | |
2151 if (foldmethodIsDiff(wp)) | |
2152 { | |
2153 if (top > diff_context) | |
2154 top -= diff_context; | |
2155 else | |
2156 top = 1; | |
2157 bot += diff_context; | |
2158 } | |
2159 #endif | |
2160 | |
2161 /* When deleting lines at the end of the buffer "top" can be past the end | |
2162 * of the buffer. */ | |
2163 if (top > wp->w_buffer->b_ml.ml_line_count) | |
2164 top = wp->w_buffer->b_ml.ml_line_count; | |
2165 | |
2166 fold_changed = FALSE; | |
2167 fline.wp = wp; | |
2168 fline.off = 0; | |
2169 fline.lvl = 0; | |
2170 fline.lvl_next = -1; | |
2171 fline.start = 0; | |
2172 fline.end = MAX_LEVEL + 1; | |
2173 fline.had_end = MAX_LEVEL + 1; | |
2174 | |
2175 invalid_top = top; | |
2176 invalid_bot = bot; | |
2177 | |
2178 if (foldmethodIsMarker(wp)) | |
2179 { | |
2180 getlevel = foldlevelMarker; | |
2181 | |
2182 /* Init marker variables to speed up foldlevelMarker(). */ | |
2183 parseMarker(wp); | |
2184 | |
2185 /* Need to get the level of the line above top, it is used if there is | |
2186 * no marker at the top. */ | |
2187 if (top > 1) | |
2188 { | |
2189 /* Get the fold level at top - 1. */ | |
2190 level = foldLevelWin(wp, top - 1); | |
2191 | |
2192 /* The fold may end just above the top, check for that. */ | |
2193 fline.lnum = top - 1; | |
2194 fline.lvl = level; | |
2195 getlevel(&fline); | |
2196 | |
2197 /* If a fold started here, we already had the level, if it stops | |
2198 * here, we need to use lvl_next. Could also start and end a fold | |
2199 * in the same line. */ | |
2200 if (fline.lvl > level) | |
2201 fline.lvl = level - (fline.lvl - fline.lvl_next); | |
2202 else | |
2203 fline.lvl = fline.lvl_next; | |
2204 } | |
2205 fline.lnum = top; | |
2206 getlevel(&fline); | |
2207 } | |
2208 else | |
2209 { | |
2210 fline.lnum = top; | |
2211 if (foldmethodIsExpr(wp)) | |
2212 { | |
2213 getlevel = foldlevelExpr; | |
2214 /* start one line back, because a "<1" may indicate the end of a | |
2215 * fold in the topline */ | |
2216 if (top > 1) | |
2217 --fline.lnum; | |
2218 } | |
2219 else if (foldmethodIsSyntax(wp)) | |
2220 getlevel = foldlevelSyntax; | |
2221 #ifdef FEAT_DIFF | |
2222 else if (foldmethodIsDiff(wp)) | |
2223 getlevel = foldlevelDiff; | |
2224 #endif | |
2225 else | |
2226 getlevel = foldlevelIndent; | |
2227 | |
2228 /* Backup to a line for which the fold level is defined. Since it's | |
2229 * always defined for line one, we will stop there. */ | |
2230 fline.lvl = -1; | |
2231 for ( ; !got_int; --fline.lnum) | |
2232 { | |
2233 /* Reset lvl_next each time, because it will be set to a value for | |
2234 * the next line, but we search backwards here. */ | |
2235 fline.lvl_next = -1; | |
2236 getlevel(&fline); | |
2237 if (fline.lvl >= 0) | |
2238 break; | |
2239 } | |
2240 } | |
2241 | |
1977 | 2242 /* |
2243 * If folding is defined by the syntax, it is possible that a change in | |
2244 * one line will cause all sub-folds of the current fold to change (e.g., | |
2245 * closing a C-style comment can cause folds in the subsequent lines to | |
2246 * appear). To take that into account we should adjust the value of "bot" | |
2247 * to point to the end of the current fold: | |
2248 */ | |
2249 if (foldlevelSyntax == getlevel) | |
2250 { | |
2251 garray_T *gap = &wp->w_folds; | |
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2252 fold_T *fpn = NULL; |
1977 | 2253 int current_fdl = 0; |
2254 linenr_T fold_start_lnum = 0; | |
2255 linenr_T lnum_rel = fline.lnum; | |
2256 | |
2257 while (current_fdl < fline.lvl) | |
2258 { | |
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2259 if (!foldFind(gap, lnum_rel, &fpn)) |
1977 | 2260 break; |
2261 ++current_fdl; | |
2262 | |
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2263 fold_start_lnum += fpn->fd_top; |
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2264 gap = &fpn->fd_nested; |
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2265 lnum_rel -= fpn->fd_top; |
1977 | 2266 } |
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2267 if (fpn != NULL && current_fdl == fline.lvl) |
1977 | 2268 { |
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2269 linenr_T fold_end_lnum = fold_start_lnum + fpn->fd_len; |
1977 | 2270 |
2271 if (fold_end_lnum > bot) | |
2272 bot = fold_end_lnum; | |
2273 } | |
2274 } | |
2275 | |
7 | 2276 start = fline.lnum; |
2277 end = bot; | |
2278 /* Do at least one line. */ | |
2279 if (start > end && end < wp->w_buffer->b_ml.ml_line_count) | |
2280 end = start; | |
2281 while (!got_int) | |
2282 { | |
2283 /* Always stop at the end of the file ("end" can be past the end of | |
2284 * the file). */ | |
2285 if (fline.lnum > wp->w_buffer->b_ml.ml_line_count) | |
2286 break; | |
2287 if (fline.lnum > end) | |
2288 { | |
2289 /* For "marker", "expr" and "syntax" methods: If a change caused | |
2290 * a fold to be removed, we need to continue at least until where | |
2291 * it ended. */ | |
2292 if (getlevel != foldlevelMarker | |
2293 && getlevel != foldlevelSyntax | |
2294 && getlevel != foldlevelExpr) | |
2295 break; | |
2296 if ((start <= end | |
2297 && foldFind(&wp->w_folds, end, &fp) | |
2298 && fp->fd_top + fp->fd_len - 1 > end) | |
2299 || (fline.lvl == 0 | |
2300 && foldFind(&wp->w_folds, fline.lnum, &fp) | |
2301 && fp->fd_top < fline.lnum)) | |
2302 end = fp->fd_top + fp->fd_len - 1; | |
2303 else if (getlevel == foldlevelSyntax | |
2304 && foldLevelWin(wp, fline.lnum) != fline.lvl) | |
2305 /* For "syntax" method: Compare the foldlevel that the syntax | |
2306 * tells us to the foldlevel from the existing folds. If they | |
2307 * don't match continue updating folds. */ | |
2308 end = fline.lnum; | |
2309 else | |
2310 break; | |
2311 } | |
2312 | |
2313 /* A level 1 fold starts at a line with foldlevel > 0. */ | |
2314 if (fline.lvl > 0) | |
2315 { | |
2316 invalid_top = fline.lnum; | |
2317 invalid_bot = end; | |
2318 end = foldUpdateIEMSRecurse(&wp->w_folds, | |
2319 1, start, &fline, getlevel, end, FD_LEVEL); | |
2320 start = fline.lnum; | |
2321 } | |
2322 else | |
2323 { | |
2324 if (fline.lnum == wp->w_buffer->b_ml.ml_line_count) | |
2325 break; | |
2326 ++fline.lnum; | |
2327 fline.lvl = fline.lvl_next; | |
2328 getlevel(&fline); | |
2329 } | |
2330 } | |
2331 | |
2332 /* There can't be any folds from start until end now. */ | |
2333 foldRemove(&wp->w_folds, start, end); | |
2334 | |
2335 /* If some fold changed, need to redraw and position cursor. */ | |
2336 if (fold_changed && wp->w_p_fen) | |
1554 | 2337 changed_window_setting_win(wp); |
7 | 2338 |
2339 /* If we updated folds past "bot", need to redraw more lines. Don't do | |
2340 * this in other situations, the changed lines will be redrawn anyway and | |
2341 * this method can cause the whole window to be updated. */ | |
2342 if (end != bot) | |
2343 { | |
2344 if (wp->w_redraw_top == 0 || wp->w_redraw_top > top) | |
2345 wp->w_redraw_top = top; | |
2346 if (wp->w_redraw_bot < end) | |
2347 wp->w_redraw_bot = end; | |
2348 } | |
2349 | |
2350 invalid_top = (linenr_T)0; | |
2351 } | |
2352 | |
2353 /* foldUpdateIEMSRecurse() {{{2 */ | |
2354 /* | |
2355 * Update a fold that starts at "flp->lnum". At this line there is always a | |
2356 * valid foldlevel, and its level >= "level". | |
2357 * "flp" is valid for "flp->lnum" when called and it's valid when returning. | |
2358 * "flp->lnum" is set to the lnum just below the fold, if it ends before | |
2359 * "bot", it's "bot" plus one if the fold continues and it's bigger when using | |
2360 * the marker method and a text change made following folds to change. | |
2361 * When returning, "flp->lnum_save" is the line number that was used to get | |
2362 * the level when the level at "flp->lnum" is invalid. | |
2363 * Remove any folds from "startlnum" up to here at this level. | |
2364 * Recursively update nested folds. | |
2365 * Below line "bot" there are no changes in the text. | |
2366 * "flp->lnum", "flp->lnum_save" and "bot" are relative to the start of the | |
2367 * outer fold. | |
2368 * "flp->off" is the offset to the real line number in the buffer. | |
2369 * | |
2370 * All this would be a lot simpler if all folds in the range would be deleted | |
1698 | 2371 * and then created again. But we would lose all information about the |
7 | 2372 * folds, even when making changes that don't affect the folding (e.g. "vj~"). |
2373 * | |
2374 * Returns bot, which may have been increased for lines that also need to be | |
2375 * updated as a result of a detected change in the fold. | |
2376 */ | |
2377 static linenr_T | |
7821
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2378 foldUpdateIEMSRecurse( |
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2379 garray_T *gap, |
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2380 int level, |
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2381 linenr_T startlnum, |
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2382 fline_T *flp, |
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2383 void (*getlevel)(fline_T *), |
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|
2384 linenr_T bot, |
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|
2385 int topflags) /* flags used by containing fold */ |
7 | 2386 { |
2387 linenr_T ll; | |
2388 fold_T *fp = NULL; | |
2389 fold_T *fp2; | |
2390 int lvl = level; | |
2391 linenr_T startlnum2 = startlnum; | |
2392 linenr_T firstlnum = flp->lnum; /* first lnum we got */ | |
2393 int i; | |
2394 int finish = FALSE; | |
2395 linenr_T linecount = flp->wp->w_buffer->b_ml.ml_line_count - flp->off; | |
2396 int concat; | |
2397 | |
2398 /* | |
2399 * If using the marker method, the start line is not the start of a fold | |
2400 * at the level we're dealing with and the level is non-zero, we must use | |
2401 * the previous fold. But ignore a fold that starts at or below | |
2402 * startlnum, it must be deleted. | |
2403 */ | |
2404 if (getlevel == foldlevelMarker && flp->start <= flp->lvl - level | |
2405 && flp->lvl > 0) | |
2406 { | |
7009 | 2407 (void)foldFind(gap, startlnum - 1, &fp); |
7 | 2408 if (fp >= ((fold_T *)gap->ga_data) + gap->ga_len |
2409 || fp->fd_top >= startlnum) | |
2410 fp = NULL; | |
2411 } | |
2412 | |
2413 /* | |
2414 * Loop over all lines in this fold, or until "bot" is hit. | |
2415 * Handle nested folds inside of this fold. | |
2416 * "flp->lnum" is the current line. When finding the end of the fold, it | |
2417 * is just below the end of the fold. | |
2418 * "*flp" contains the level of the line "flp->lnum" or a following one if | |
2419 * there are lines with an invalid fold level. "flp->lnum_save" is the | |
2420 * line number that was used to get the fold level (below "flp->lnum" when | |
2421 * it has an invalid fold level). When called the fold level is always | |
2422 * valid, thus "flp->lnum_save" is equal to "flp->lnum". | |
2423 */ | |
2424 flp->lnum_save = flp->lnum; | |
2425 while (!got_int) | |
2426 { | |
2427 /* Updating folds can be slow, check for CTRL-C. */ | |
2428 line_breakcheck(); | |
2429 | |
2430 /* Set "lvl" to the level of line "flp->lnum". When flp->start is set | |
2431 * and after the first line of the fold, set the level to zero to | |
2432 * force the fold to end. Do the same when had_end is set: Previous | |
2433 * line was marked as end of a fold. */ | |
2434 lvl = flp->lvl; | |
2435 if (lvl > MAX_LEVEL) | |
2436 lvl = MAX_LEVEL; | |
2437 if (flp->lnum > firstlnum | |
2438 && (level > lvl - flp->start || level >= flp->had_end)) | |
2439 lvl = 0; | |
2440 | |
2441 if (flp->lnum > bot && !finish && fp != NULL) | |
2442 { | |
2443 /* For "marker" and "syntax" methods: | |
2444 * - If a change caused a nested fold to be removed, we need to | |
2445 * delete it and continue at least until where it ended. | |
2446 * - If a change caused a nested fold to be created, or this fold | |
2447 * to continue below its original end, need to finish this fold. | |
2448 */ | |
2449 if (getlevel != foldlevelMarker | |
2450 && getlevel != foldlevelExpr | |
2451 && getlevel != foldlevelSyntax) | |
2452 break; | |
2453 i = 0; | |
2454 fp2 = fp; | |
2455 if (lvl >= level) | |
2456 { | |
2457 /* Compute how deep the folds currently are, if it's deeper | |
2458 * than "lvl" then some must be deleted, need to update | |
2459 * at least one nested fold. */ | |
2460 ll = flp->lnum - fp->fd_top; | |
2461 while (foldFind(&fp2->fd_nested, ll, &fp2)) | |
2462 { | |
2463 ++i; | |
2464 ll -= fp2->fd_top; | |
2465 } | |
2466 } | |
2467 if (lvl < level + i) | |
2468 { | |
7009 | 2469 (void)foldFind(&fp->fd_nested, flp->lnum - fp->fd_top, &fp2); |
7 | 2470 if (fp2 != NULL) |
2471 bot = fp2->fd_top + fp2->fd_len - 1 + fp->fd_top; | |
2472 } | |
2473 else if (fp->fd_top + fp->fd_len <= flp->lnum && lvl >= level) | |
2474 finish = TRUE; | |
2475 else | |
2476 break; | |
2477 } | |
2478 | |
2479 /* At the start of the first nested fold and at the end of the current | |
2480 * fold: check if existing folds at this level, before the current | |
2481 * one, need to be deleted or truncated. */ | |
2482 if (fp == NULL | |
2483 && (lvl != level | |
2484 || flp->lnum_save >= bot | |
2485 || flp->start != 0 | |
2486 || flp->had_end <= MAX_LEVEL | |
2487 || flp->lnum == linecount)) | |
2488 { | |
2489 /* | |
2490 * Remove or update folds that have lines between startlnum and | |
2491 * firstlnum. | |
2492 */ | |
2493 while (!got_int) | |
2494 { | |
2495 /* set concat to 1 if it's allowed to concatenated this fold | |
2496 * with a previous one that touches it. */ | |
2497 if (flp->start != 0 || flp->had_end <= MAX_LEVEL) | |
2498 concat = 0; | |
2499 else | |
2500 concat = 1; | |
2501 | |
2502 /* Find an existing fold to re-use. Preferably one that | |
2503 * includes startlnum, otherwise one that ends just before | |
2504 * startlnum or starts after it. */ | |
2505 if (foldFind(gap, startlnum, &fp) | |
2506 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
2507 && fp->fd_top <= firstlnum) | |
2508 || foldFind(gap, firstlnum - concat, &fp) | |
2509 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
2510 && ((lvl < level && fp->fd_top < flp->lnum) | |
2511 || (lvl >= level | |
2512 && fp->fd_top <= flp->lnum_save)))) | |
2513 { | |
2514 if (fp->fd_top + fp->fd_len + concat > firstlnum) | |
2515 { | |
2516 /* Use existing fold for the new fold. If it starts | |
2517 * before where we started looking, extend it. If it | |
2518 * starts at another line, update nested folds to keep | |
2519 * their position, compensating for the new fd_top. */ | |
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2520 if (fp->fd_top == firstlnum) |
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2521 { |
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2522 /* have found a fold beginning where we want */ |
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2523 } |
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2524 else if (fp->fd_top >= startlnum) |
7 | 2525 { |
2526 if (fp->fd_top > firstlnum) | |
2527 /* like lines are inserted */ | |
2528 foldMarkAdjustRecurse(&fp->fd_nested, | |
2529 (linenr_T)0, (linenr_T)MAXLNUM, | |
2530 (long)(fp->fd_top - firstlnum), 0L); | |
2531 else | |
2532 /* like lines are deleted */ | |
2533 foldMarkAdjustRecurse(&fp->fd_nested, | |
2534 (linenr_T)0, | |
2535 (long)(firstlnum - fp->fd_top - 1), | |
2536 (linenr_T)MAXLNUM, | |
2537 (long)(fp->fd_top - firstlnum)); | |
2538 fp->fd_len += fp->fd_top - firstlnum; | |
2539 fp->fd_top = firstlnum; | |
2540 fold_changed = TRUE; | |
2541 } | |
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2542 else if ((flp->start != 0 && lvl == level) |
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2543 || firstlnum != startlnum) |
7 | 2544 { |
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2545 linenr_T breakstart; |
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2546 linenr_T breakend; |
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2547 |
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2548 /* |
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2549 * Before there was a fold spanning from above |
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2550 * startlnum to below firstlnum. This fold is valid |
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2551 * above startlnum (because we are not updating |
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2552 * that range), but there should now be a break in |
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2553 * it. |
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2554 * If the break is because we are now forced to |
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2555 * start a new fold at the level "level" at line |
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2556 * fline->lnum, then we need to split the fold at |
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2557 * fline->lnum. |
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2558 * If the break is because the range |
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2559 * [startlnum, firstlnum) is now at a lower indent |
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2560 * than "level", we need to split the fold in this |
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2561 * range. |
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2562 * Any splits have to be done recursively. |
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2563 */ |
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2564 if (firstlnum != startlnum) |
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2565 { |
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2566 breakstart = startlnum; |
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2567 breakend = firstlnum; |
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2568 } |
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2569 else |
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2570 { |
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2571 breakstart = flp->lnum; |
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2572 breakend = flp->lnum; |
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2573 } |
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2574 foldRemove(&fp->fd_nested, breakstart - fp->fd_top, |
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2575 breakend - fp->fd_top); |
7 | 2576 i = (int)(fp - (fold_T *)gap->ga_data); |
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2577 foldSplit(gap, i, breakstart, breakend - 1); |
7 | 2578 fp = (fold_T *)gap->ga_data + i + 1; |
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2579 |
7 | 2580 /* If using the "marker" or "syntax" method, we |
2581 * need to continue until the end of the fold is | |
2582 * found. */ | |
2583 if (getlevel == foldlevelMarker | |
2584 || getlevel == foldlevelExpr | |
2585 || getlevel == foldlevelSyntax) | |
2586 finish = TRUE; | |
2587 } | |
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2588 |
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2589 if (fp->fd_top == startlnum && concat) |
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2590 { |
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2591 i = (int)(fp - (fold_T *)gap->ga_data); |
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2592 if (i != 0) |
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2593 { |
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2594 fp2 = fp - 1; |
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2595 if (fp2->fd_top + fp2->fd_len == fp->fd_top) |
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2596 { |
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2597 foldMerge(fp2, gap, fp); |
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2598 fp = fp2; |
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2599 } |
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2600 } |
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2601 } |
7 | 2602 break; |
2603 } | |
2604 if (fp->fd_top >= startlnum) | |
2605 { | |
2606 /* A fold that starts at or after startlnum and stops | |
2607 * before the new fold must be deleted. Continue | |
2608 * looking for the next one. */ | |
2609 deleteFoldEntry(gap, | |
2610 (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
2611 } | |
2612 else | |
2613 { | |
2614 /* A fold has some lines above startlnum, truncate it | |
2615 * to stop just above startlnum. */ | |
2616 fp->fd_len = startlnum - fp->fd_top; | |
2617 foldMarkAdjustRecurse(&fp->fd_nested, | |
2618 (linenr_T)fp->fd_len, (linenr_T)MAXLNUM, | |
2619 (linenr_T)MAXLNUM, 0L); | |
2620 fold_changed = TRUE; | |
2621 } | |
2622 } | |
2623 else | |
2624 { | |
2625 /* Insert new fold. Careful: ga_data may be NULL and it | |
2626 * may change! */ | |
2627 i = (int)(fp - (fold_T *)gap->ga_data); | |
2628 if (foldInsert(gap, i) != OK) | |
2629 return bot; | |
2630 fp = (fold_T *)gap->ga_data + i; | |
2631 /* The new fold continues until bot, unless we find the | |
2632 * end earlier. */ | |
2633 fp->fd_top = firstlnum; | |
2634 fp->fd_len = bot - firstlnum + 1; | |
2635 /* When the containing fold is open, the new fold is open. | |
2636 * The new fold is closed if the fold above it is closed. | |
2637 * The first fold depends on the containing fold. */ | |
2638 if (topflags == FD_OPEN) | |
2639 { | |
2640 flp->wp->w_fold_manual = TRUE; | |
2641 fp->fd_flags = FD_OPEN; | |
2642 } | |
2643 else if (i <= 0) | |
2644 { | |
2645 fp->fd_flags = topflags; | |
2646 if (topflags != FD_LEVEL) | |
2647 flp->wp->w_fold_manual = TRUE; | |
2648 } | |
2649 else | |
2650 fp->fd_flags = (fp - 1)->fd_flags; | |
2651 fp->fd_small = MAYBE; | |
2652 /* If using the "marker", "expr" or "syntax" method, we | |
2653 * need to continue until the end of the fold is found. */ | |
2654 if (getlevel == foldlevelMarker | |
2655 || getlevel == foldlevelExpr | |
2656 || getlevel == foldlevelSyntax) | |
2657 finish = TRUE; | |
2658 fold_changed = TRUE; | |
2659 break; | |
2660 } | |
2661 } | |
2662 } | |
2663 | |
2664 if (lvl < level || flp->lnum > linecount) | |
2665 { | |
2666 /* | |
2667 * Found a line with a lower foldlevel, this fold ends just above | |
2668 * "flp->lnum". | |
2669 */ | |
2670 break; | |
2671 } | |
2672 | |
2673 /* | |
2674 * The fold includes the line "flp->lnum" and "flp->lnum_save". | |
840 | 2675 * Check "fp" for safety. |
7 | 2676 */ |
840 | 2677 if (lvl > level && fp != NULL) |
7 | 2678 { |
2679 /* | |
2680 * There is a nested fold, handle it recursively. | |
2681 */ | |
2682 /* At least do one line (can happen when finish is TRUE). */ | |
2683 if (bot < flp->lnum) | |
2684 bot = flp->lnum; | |
2685 | |
2686 /* Line numbers in the nested fold are relative to the start of | |
2687 * this fold. */ | |
2688 flp->lnum = flp->lnum_save - fp->fd_top; | |
2689 flp->off += fp->fd_top; | |
2690 i = (int)(fp - (fold_T *)gap->ga_data); | |
2691 bot = foldUpdateIEMSRecurse(&fp->fd_nested, level + 1, | |
2692 startlnum2 - fp->fd_top, flp, getlevel, | |
2693 bot - fp->fd_top, fp->fd_flags); | |
2694 fp = (fold_T *)gap->ga_data + i; | |
2695 flp->lnum += fp->fd_top; | |
2696 flp->lnum_save += fp->fd_top; | |
2697 flp->off -= fp->fd_top; | |
2698 bot += fp->fd_top; | |
2699 startlnum2 = flp->lnum; | |
2700 | |
2701 /* This fold may end at the same line, don't incr. flp->lnum. */ | |
2702 } | |
2703 else | |
2704 { | |
2705 /* | |
2706 * Get the level of the next line, then continue the loop to check | |
2707 * if it ends there. | |
2708 * Skip over undefined lines, to find the foldlevel after it. | |
2709 * For the last line in the file the foldlevel is always valid. | |
2710 */ | |
2711 flp->lnum = flp->lnum_save; | |
2712 ll = flp->lnum + 1; | |
2713 while (!got_int) | |
2714 { | |
2715 /* Make the previous level available to foldlevel(). */ | |
2716 prev_lnum = flp->lnum; | |
2717 prev_lnum_lvl = flp->lvl; | |
2718 | |
2719 if (++flp->lnum > linecount) | |
2720 break; | |
2721 flp->lvl = flp->lvl_next; | |
2722 getlevel(flp); | |
2723 if (flp->lvl >= 0 || flp->had_end <= MAX_LEVEL) | |
2724 break; | |
2725 } | |
2726 prev_lnum = 0; | |
2727 if (flp->lnum > linecount) | |
2728 break; | |
2729 | |
2730 /* leave flp->lnum_save to lnum of the line that was used to get | |
2731 * the level, flp->lnum to the lnum of the next line. */ | |
2732 flp->lnum_save = flp->lnum; | |
2733 flp->lnum = ll; | |
2734 } | |
2735 } | |
2736 | |
2737 if (fp == NULL) /* only happens when got_int is set */ | |
2738 return bot; | |
2739 | |
2740 /* | |
2741 * Get here when: | |
2742 * lvl < level: the folds ends just above "flp->lnum" | |
2743 * lvl >= level: fold continues below "bot" | |
2744 */ | |
2745 | |
17787
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patch 8.1.1890: ml_get error when deleting fold marker
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2746 // Current fold at least extends until lnum. |
7 | 2747 if (fp->fd_len < flp->lnum - fp->fd_top) |
2748 { | |
2749 fp->fd_len = flp->lnum - fp->fd_top; | |
1513 | 2750 fp->fd_small = MAYBE; |
7 | 2751 fold_changed = TRUE; |
2752 } | |
17787
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diff
changeset
|
2753 else if (fp->fd_top + fp->fd_len > linecount) |
92e0996e1cb8
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parents:
16764
diff
changeset
|
2754 // running into the end of the buffer (deleted last line) |
92e0996e1cb8
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parents:
16764
diff
changeset
|
2755 fp->fd_len = linecount - fp->fd_top + 1; |
92e0996e1cb8
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Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2756 |
92e0996e1cb8
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Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2757 // Delete contained folds from the end of the last one found until where |
92e0996e1cb8
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Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2758 // we stopped looking. |
7 | 2759 foldRemove(&fp->fd_nested, startlnum2 - fp->fd_top, |
2760 flp->lnum - 1 - fp->fd_top); | |
2761 | |
2762 if (lvl < level) | |
2763 { | |
2764 /* End of fold found, update the length when it got shorter. */ | |
2765 if (fp->fd_len != flp->lnum - fp->fd_top) | |
2766 { | |
11234
8c153d400bf4
patch 8.0.0503: endless loop in updating folds with 32 bit ints
Christian Brabandt <cb@256bit.org>
parents:
11165
diff
changeset
|
2767 if (fp->fd_top + fp->fd_len - 1 > bot) |
7 | 2768 { |
1224 | 2769 /* fold continued below bot */ |
7 | 2770 if (getlevel == foldlevelMarker |
2771 || getlevel == foldlevelExpr | |
2772 || getlevel == foldlevelSyntax) | |
2773 { | |
2774 /* marker method: truncate the fold and make sure the | |
2775 * previously included lines are processed again */ | |
2776 bot = fp->fd_top + fp->fd_len - 1; | |
2777 fp->fd_len = flp->lnum - fp->fd_top; | |
2778 } | |
2779 else | |
2780 { | |
2781 /* indent or expr method: split fold to create a new one | |
2782 * below bot */ | |
2783 i = (int)(fp - (fold_T *)gap->ga_data); | |
2784 foldSplit(gap, i, flp->lnum, bot); | |
2785 fp = (fold_T *)gap->ga_data + i; | |
2786 } | |
2787 } | |
2788 else | |
2789 fp->fd_len = flp->lnum - fp->fd_top; | |
2790 fold_changed = TRUE; | |
2791 } | |
2792 } | |
2793 | |
2794 /* delete following folds that end before the current line */ | |
2795 for (;;) | |
2796 { | |
2797 fp2 = fp + 1; | |
2798 if (fp2 >= (fold_T *)gap->ga_data + gap->ga_len | |
2799 || fp2->fd_top > flp->lnum) | |
2800 break; | |
2801 if (fp2->fd_top + fp2->fd_len > flp->lnum) | |
2802 { | |
2803 if (fp2->fd_top < flp->lnum) | |
2804 { | |
2805 /* Make fold that includes lnum start at lnum. */ | |
2806 foldMarkAdjustRecurse(&fp2->fd_nested, | |
2807 (linenr_T)0, (long)(flp->lnum - fp2->fd_top - 1), | |
2808 (linenr_T)MAXLNUM, (long)(fp2->fd_top - flp->lnum)); | |
2809 fp2->fd_len -= flp->lnum - fp2->fd_top; | |
2810 fp2->fd_top = flp->lnum; | |
2811 fold_changed = TRUE; | |
2812 } | |
2813 | |
2814 if (lvl >= level) | |
2815 { | |
2816 /* merge new fold with existing fold that follows */ | |
2817 foldMerge(fp, gap, fp2); | |
2818 } | |
2819 break; | |
2820 } | |
2821 fold_changed = TRUE; | |
2822 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
2823 } | |
2824 | |
2825 /* Need to redraw the lines we inspected, which might be further down than | |
2826 * was asked for. */ | |
2827 if (bot < flp->lnum - 1) | |
2828 bot = flp->lnum - 1; | |
2829 | |
2830 return bot; | |
2831 } | |
2832 | |
2833 /* foldInsert() {{{2 */ | |
2834 /* | |
2835 * Insert a new fold in "gap" at position "i". | |
2836 * Returns OK for success, FAIL for failure. | |
2837 */ | |
2838 static int | |
7821
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2839 foldInsert(garray_T *gap, int i) |
7 | 2840 { |
2841 fold_T *fp; | |
2842 | |
2843 if (ga_grow(gap, 1) != OK) | |
2844 return FAIL; | |
2845 fp = (fold_T *)gap->ga_data + i; | |
2846 if (i < gap->ga_len) | |
2847 mch_memmove(fp + 1, fp, sizeof(fold_T) * (gap->ga_len - i)); | |
2848 ++gap->ga_len; | |
2849 ga_init2(&fp->fd_nested, (int)sizeof(fold_T), 10); | |
2850 return OK; | |
2851 } | |
2852 | |
2853 /* foldSplit() {{{2 */ | |
2854 /* | |
2855 * Split the "i"th fold in "gap", which starts before "top" and ends below | |
2856 * "bot" in two pieces, one ending above "top" and the other starting below | |
2857 * "bot". | |
2858 * The caller must first have taken care of any nested folds from "top" to | |
2859 * "bot"! | |
2860 */ | |
2861 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2862 foldSplit( |
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2863 garray_T *gap, |
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2864 int i, |
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2865 linenr_T top, |
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2866 linenr_T bot) |
7 | 2867 { |
2868 fold_T *fp; | |
2869 fold_T *fp2; | |
2870 garray_T *gap1; | |
2871 garray_T *gap2; | |
2872 int idx; | |
2873 int len; | |
2874 | |
2875 /* The fold continues below bot, need to split it. */ | |
2876 if (foldInsert(gap, i + 1) == FAIL) | |
2877 return; | |
2878 fp = (fold_T *)gap->ga_data + i; | |
2879 fp[1].fd_top = bot + 1; | |
2880 fp[1].fd_len = fp->fd_len - (fp[1].fd_top - fp->fd_top); | |
2881 fp[1].fd_flags = fp->fd_flags; | |
1985 | 2882 fp[1].fd_small = MAYBE; |
2883 fp->fd_small = MAYBE; | |
7 | 2884 |
2885 /* Move nested folds below bot to new fold. There can't be | |
2886 * any between top and bot, they have been removed by the caller. */ | |
2887 gap1 = &fp->fd_nested; | |
2888 gap2 = &fp[1].fd_nested; | |
2889 (void)(foldFind(gap1, bot + 1 - fp->fd_top, &fp2)); | |
2890 len = (int)((fold_T *)gap1->ga_data + gap1->ga_len - fp2); | |
2891 if (len > 0 && ga_grow(gap2, len) == OK) | |
2892 { | |
2893 for (idx = 0; idx < len; ++idx) | |
2894 { | |
2895 ((fold_T *)gap2->ga_data)[idx] = fp2[idx]; | |
2896 ((fold_T *)gap2->ga_data)[idx].fd_top | |
2897 -= fp[1].fd_top - fp->fd_top; | |
2898 } | |
2899 gap2->ga_len = len; | |
2900 gap1->ga_len -= len; | |
2901 } | |
2902 fp->fd_len = top - fp->fd_top; | |
2903 fold_changed = TRUE; | |
2904 } | |
2905 | |
2906 /* foldRemove() {{{2 */ | |
2907 /* | |
2908 * Remove folds within the range "top" to and including "bot". | |
2909 * Check for these situations: | |
2910 * 1 2 3 | |
2911 * 1 2 3 | |
2912 * top 2 3 4 5 | |
2913 * 2 3 4 5 | |
2914 * bot 2 3 4 5 | |
2915 * 3 5 6 | |
2916 * 3 5 6 | |
2917 * | |
2918 * 1: not changed | |
1224 | 2919 * 2: truncate to stop above "top" |
7 | 2920 * 3: split in two parts, one stops above "top", other starts below "bot". |
2921 * 4: deleted | |
2922 * 5: made to start below "bot". | |
2923 * 6: not changed | |
2924 */ | |
2925 static void | |
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2926 foldRemove(garray_T *gap, linenr_T top, linenr_T bot) |
7 | 2927 { |
2928 fold_T *fp = NULL; | |
2929 | |
2930 if (bot < top) | |
2931 return; /* nothing to do */ | |
2932 | |
2933 for (;;) | |
2934 { | |
2935 /* Find fold that includes top or a following one. */ | |
2936 if (foldFind(gap, top, &fp) && fp->fd_top < top) | |
2937 { | |
2938 /* 2: or 3: need to delete nested folds */ | |
2939 foldRemove(&fp->fd_nested, top - fp->fd_top, bot - fp->fd_top); | |
11396
e9924d19ee37
patch 8.0.0583: fold test hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11392
diff
changeset
|
2940 if (fp->fd_top + fp->fd_len - 1 > bot) |
7 | 2941 { |
2942 /* 3: need to split it. */ | |
2943 foldSplit(gap, (int)(fp - (fold_T *)gap->ga_data), top, bot); | |
2944 } | |
2945 else | |
2946 { | |
2947 /* 2: truncate fold at "top". */ | |
2948 fp->fd_len = top - fp->fd_top; | |
2949 } | |
2950 fold_changed = TRUE; | |
2951 continue; | |
2952 } | |
2953 if (fp >= (fold_T *)(gap->ga_data) + gap->ga_len | |
2954 || fp->fd_top > bot) | |
2955 { | |
2956 /* 6: Found a fold below bot, can stop looking. */ | |
2957 break; | |
2958 } | |
2959 if (fp->fd_top >= top) | |
2960 { | |
2961 /* Found an entry below top. */ | |
2962 fold_changed = TRUE; | |
36 | 2963 if (fp->fd_top + fp->fd_len - 1 > bot) |
7 | 2964 { |
2965 /* 5: Make fold that includes bot start below bot. */ | |
2966 foldMarkAdjustRecurse(&fp->fd_nested, | |
2967 (linenr_T)0, (long)(bot - fp->fd_top), | |
2968 (linenr_T)MAXLNUM, (long)(fp->fd_top - bot - 1)); | |
2969 fp->fd_len -= bot - fp->fd_top + 1; | |
2970 fp->fd_top = bot + 1; | |
2971 break; | |
2972 } | |
2973 | |
2974 /* 4: Delete completely contained fold. */ | |
2975 deleteFoldEntry(gap, (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
2976 } | |
2977 } | |
2978 } | |
2979 | |
11140
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2980 /* foldReverseOrder() {{{2 */ |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
2981 static void |
11396
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2982 foldReverseOrder(garray_T *gap, linenr_T start_arg, linenr_T end_arg) |
11140
6b26e044b6f5
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changeset
|
2983 { |
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parents:
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changeset
|
2984 fold_T *left, *right; |
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changeset
|
2985 fold_T tmp; |
11396
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changeset
|
2986 linenr_T start = start_arg; |
e9924d19ee37
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parents:
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diff
changeset
|
2987 linenr_T end = end_arg; |
11140
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parents:
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changeset
|
2988 |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
2989 for (; start < end; start++, end--) |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
2990 { |
6b26e044b6f5
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parents:
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changeset
|
2991 left = (fold_T *)gap->ga_data + start; |
6b26e044b6f5
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parents:
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changeset
|
2992 right = (fold_T *)gap->ga_data + end; |
6b26e044b6f5
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changeset
|
2993 tmp = *left; |
6b26e044b6f5
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parents:
11131
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changeset
|
2994 *left = *right; |
6b26e044b6f5
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parents:
11131
diff
changeset
|
2995 *right = tmp; |
6b26e044b6f5
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parents:
11131
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changeset
|
2996 } |
6b26e044b6f5
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parents:
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diff
changeset
|
2997 } |
6b26e044b6f5
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parents:
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diff
changeset
|
2998 |
11148
87779062d706
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Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
2999 /* foldMoveRange() {{{2 */ |
11140
6b26e044b6f5
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parents:
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changeset
|
3000 /* |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3001 * Move folds within the inclusive range "line1" to "line2" to after "dest" |
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changeset
|
3002 * requires "line1" <= "line2" <= "dest" |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3003 * |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3004 * There are the following situations for the first fold at or below line1 - 1. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3005 * 1 2 3 4 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3006 * 1 2 3 4 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3007 * line1 2 3 4 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3008 * 2 3 4 5 6 7 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3009 * line2 3 4 5 6 7 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3010 * 3 4 6 7 8 9 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3011 * dest 4 7 8 9 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3012 * 4 7 8 10 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3013 * 4 7 8 10 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3014 * |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3015 * In the following descriptions, "moved" means moving in the buffer, *and* in |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3016 * the fold array. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3017 * Meanwhile, "shifted" just means moving in the buffer. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3018 * 1. not changed |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3019 * 2. truncated above line1 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3020 * 3. length reduced by line2 - line1, folds starting between the end of 3 and |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3021 * dest are truncated and shifted up |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3022 * 4. internal folds moved (from [line1, line2] to dest) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3023 * 5. moved to dest. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3024 * 6. truncated below line2 and moved. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3025 * 7. length reduced by line2 - dest, folds starting between line2 and dest are |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3026 * removed, top is moved down by move_len. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3027 * 8. truncated below dest and shifted up. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3028 * 9. shifted up |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3029 * 10. not changed |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3030 */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3031 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3032 static void |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3033 truncate_fold(fold_T *fp, linenr_T end) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3034 { |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3035 end += 1; |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3036 foldRemove(&fp->fd_nested, end - fp->fd_top, MAXLNUM); |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
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11148
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changeset
|
3037 fp->fd_len = end - fp->fd_top; |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3038 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3039 |
6b26e044b6f5
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changeset
|
3040 #define fold_end(fp) ((fp)->fd_top + (fp)->fd_len - 1) |
6b26e044b6f5
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changeset
|
3041 #define valid_fold(fp, gap) ((fp) < ((fold_T *)(gap)->ga_data + (gap)->ga_len)) |
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changeset
|
3042 #define fold_index(fp, gap) ((size_t)(fp - ((fold_T *)(gap)->ga_data))) |
6b26e044b6f5
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changeset
|
3043 |
11148
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3044 void |
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3045 foldMoveRange(garray_T *gap, linenr_T line1, linenr_T line2, linenr_T dest) |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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changeset
|
3046 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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changeset
|
3047 fold_T *fp; |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3048 linenr_T range_len = line2 - line1 + 1; |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3049 linenr_T move_len = dest - line2; |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3050 int at_start = foldFind(gap, line1 - 1, &fp); |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3051 size_t move_start = 0, move_end = 0, dest_index = 0; |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3052 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
diff
changeset
|
3053 if (at_start) |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
3054 { |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3055 if (fold_end(fp) > dest) |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3056 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3057 /* Case 4 |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3058 * don't have to change this fold, but have to move nested folds. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3059 */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3060 foldMoveRange(&fp->fd_nested, line1 - fp->fd_top, line2 - |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3061 fp->fd_top, dest - fp->fd_top); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3062 return; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3063 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3064 else if (fold_end(fp) > line2) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3065 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3066 /* Case 3 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3067 * Remove nested folds between line1 and line2 & reduce the |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3068 * length of fold by "range_len". |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3069 * Folds after this one must be dealt with. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3070 */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3071 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, line2 - |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3072 fp->fd_top, MAXLNUM, -range_len); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3073 fp->fd_len -= range_len; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3074 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3075 else |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
diff
changeset
|
3076 /* Case 2 truncate fold, folds after this one must be dealt with. */ |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3077 truncate_fold(fp, line1 - 1); |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3078 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3079 /* Look at the next fold, and treat that one as if it were the first |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3080 * after "line1" (because now it is). */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3081 fp = fp + 1; |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3082 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
diff
changeset
|
3083 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3084 if (!valid_fold(fp, gap) || fp->fd_top > dest) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
3085 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3086 /* Case 10 |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3087 * No folds after "line1" and before "dest" |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3088 */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3089 return; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3090 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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changeset
|
3091 else if (fp->fd_top > line2) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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changeset
|
3092 { |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
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11148
diff
changeset
|
3093 for (; valid_fold(fp, gap) && fold_end(fp) <= dest; fp++) |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3094 /* Case 9. (for all case 9's) -- shift up. */ |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3095 fp->fd_top -= range_len; |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3096 |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
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11148
diff
changeset
|
3097 if (valid_fold(fp, gap) && fp->fd_top <= dest) |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3098 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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changeset
|
3099 /* Case 8. -- ensure truncated at dest, shift up */ |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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changeset
|
3100 truncate_fold(fp, dest); |
6b26e044b6f5
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changeset
|
3101 fp->fd_top -= range_len; |
6b26e044b6f5
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changeset
|
3102 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3103 return; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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changeset
|
3104 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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changeset
|
3105 else if (fold_end(fp) > dest) |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3106 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
3107 /* Case 7 -- remove nested folds and shrink */ |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3108 foldMarkAdjustRecurse(&fp->fd_nested, line2 + 1 - fp->fd_top, dest - |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
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changeset
|
3109 fp->fd_top, MAXLNUM, -move_len); |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3110 fp->fd_len -= move_len; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3111 fp->fd_top += move_len; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3112 return; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3113 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3114 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3115 /* Case 5 or 6 |
11148
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3116 * changes rely on whether there are folds between the end of |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3117 * this fold and "dest". |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3118 */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3119 move_start = fold_index(fp, gap); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3120 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3121 for (; valid_fold(fp, gap) && fp->fd_top <= dest; fp++) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3122 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3123 if (fp->fd_top <= line2) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3124 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3125 /* 1. 2. or 3. */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3126 if (fold_end(fp) > line2) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3127 /* 2. or 3., truncate before moving */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3128 truncate_fold(fp, line2); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3129 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3130 fp->fd_top += move_len; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3131 continue; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3132 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3133 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3134 /* Record index of the first fold after the moved range. */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3135 if (move_end == 0) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3136 move_end = fold_index(fp, gap); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3137 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3138 if (fold_end(fp) > dest) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3139 truncate_fold(fp, dest); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3140 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3141 fp->fd_top -= range_len; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3142 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3143 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3144 dest_index = fold_index(fp, gap); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3145 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3146 /* |
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3147 * All folds are now correct, but not necessarily in the correct order. We |
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3148 * must swap folds in the range [move_end, dest_index) with those in the |
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3149 * range [move_start, move_end). |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3150 */ |
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3151 if (move_end == 0) |
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3152 /* There are no folds after those moved, hence no folds have been moved |
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3153 * out of order. */ |
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3154 return; |
11165
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3155 foldReverseOrder(gap, (linenr_T)move_start, (linenr_T)dest_index - 1); |
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3156 foldReverseOrder(gap, (linenr_T)move_start, |
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3157 (linenr_T)(move_start + dest_index - move_end - 1)); |
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3158 foldReverseOrder(gap, (linenr_T)(move_start + dest_index - move_end), |
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3159 (linenr_T)(dest_index - 1)); |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3160 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3161 #undef fold_end |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3162 #undef valid_fold |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3163 #undef fold_index |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3164 |
7 | 3165 /* foldMerge() {{{2 */ |
3166 /* | |
1224 | 3167 * Merge two adjacent folds (and the nested ones in them). |
3168 * This only works correctly when the folds are really adjacent! Thus "fp1" | |
7 | 3169 * must end just above "fp2". |
3170 * The resulting fold is "fp1", nested folds are moved from "fp2" to "fp1". | |
3171 * Fold entry "fp2" in "gap" is deleted. | |
3172 */ | |
3173 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3174 foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2) |
7 | 3175 { |
3176 fold_T *fp3; | |
3177 fold_T *fp4; | |
3178 int idx; | |
3179 garray_T *gap1 = &fp1->fd_nested; | |
3180 garray_T *gap2 = &fp2->fd_nested; | |
3181 | |
3182 /* If the last nested fold in fp1 touches the first nested fold in fp2, | |
3183 * merge them recursively. */ | |
3184 if (foldFind(gap1, fp1->fd_len - 1L, &fp3) && foldFind(gap2, 0L, &fp4)) | |
3185 foldMerge(fp3, gap2, fp4); | |
3186 | |
3187 /* Move nested folds in fp2 to the end of fp1. */ | |
3188 if (gap2->ga_len > 0 && ga_grow(gap1, gap2->ga_len) == OK) | |
3189 { | |
3190 for (idx = 0; idx < gap2->ga_len; ++idx) | |
3191 { | |
3192 ((fold_T *)gap1->ga_data)[gap1->ga_len] | |
3193 = ((fold_T *)gap2->ga_data)[idx]; | |
3194 ((fold_T *)gap1->ga_data)[gap1->ga_len].fd_top += fp1->fd_len; | |
3195 ++gap1->ga_len; | |
3196 } | |
3197 gap2->ga_len = 0; | |
3198 } | |
3199 | |
3200 fp1->fd_len += fp2->fd_len; | |
3201 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
3202 fold_changed = TRUE; | |
3203 } | |
3204 | |
3205 /* foldlevelIndent() {{{2 */ | |
3206 /* | |
3207 * Low level function to get the foldlevel for the "indent" method. | |
3208 * Doesn't use any caching. | |
3209 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
3210 */ | |
3211 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3212 foldlevelIndent(fline_T *flp) |
7 | 3213 { |
3214 char_u *s; | |
3215 buf_T *buf; | |
3216 linenr_T lnum = flp->lnum + flp->off; | |
3217 | |
3218 buf = flp->wp->w_buffer; | |
3219 s = skipwhite(ml_get_buf(buf, lnum, FALSE)); | |
3220 | |
3221 /* empty line or lines starting with a character in 'foldignore': level | |
3222 * depends on surrounding lines */ | |
3223 if (*s == NUL || vim_strchr(flp->wp->w_p_fdi, *s) != NULL) | |
3224 { | |
3225 /* first and last line can't be undefined, use level 0 */ | |
3226 if (lnum == 1 || lnum == buf->b_ml.ml_line_count) | |
3227 flp->lvl = 0; | |
3228 else | |
3229 flp->lvl = -1; | |
3230 } | |
3231 else | |
15031
03831e5ea0de
patch 8.1.0527: using 'shiftwidth' from wrong buffer for folding
Bram Moolenaar <Bram@vim.org>
parents:
12477
diff
changeset
|
3232 flp->lvl = get_indent_buf(buf, lnum) / get_sw_value(buf); |
7 | 3233 if (flp->lvl > flp->wp->w_p_fdn) |
1028 | 3234 { |
7 | 3235 flp->lvl = flp->wp->w_p_fdn; |
1028 | 3236 if (flp->lvl < 0) |
3237 flp->lvl = 0; | |
3238 } | |
7 | 3239 } |
3240 | |
3241 /* foldlevelDiff() {{{2 */ | |
3242 #ifdef FEAT_DIFF | |
3243 /* | |
3244 * Low level function to get the foldlevel for the "diff" method. | |
3245 * Doesn't use any caching. | |
3246 */ | |
3247 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3248 foldlevelDiff(fline_T *flp) |
7 | 3249 { |
3250 if (diff_infold(flp->wp, flp->lnum + flp->off)) | |
3251 flp->lvl = 1; | |
3252 else | |
3253 flp->lvl = 0; | |
3254 } | |
3255 #endif | |
3256 | |
3257 /* foldlevelExpr() {{{2 */ | |
3258 /* | |
3259 * Low level function to get the foldlevel for the "expr" method. | |
3260 * Doesn't use any caching. | |
3261 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
3262 */ | |
3263 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3264 foldlevelExpr(fline_T *flp) |
7 | 3265 { |
3266 #ifndef FEAT_EVAL | |
3267 flp->start = FALSE; | |
3268 flp->lvl = 0; | |
3269 #else | |
3270 win_T *win; | |
3271 int n; | |
3272 int c; | |
3273 linenr_T lnum = flp->lnum + flp->off; | |
3274 int save_keytyped; | |
3275 | |
3276 win = curwin; | |
3277 curwin = flp->wp; | |
3278 curbuf = flp->wp->w_buffer; | |
3279 set_vim_var_nr(VV_LNUM, lnum); | |
3280 | |
3281 flp->start = 0; | |
3282 flp->had_end = flp->end; | |
3283 flp->end = MAX_LEVEL + 1; | |
3284 if (lnum <= 1) | |
3285 flp->lvl = 0; | |
3286 | |
3287 /* KeyTyped may be reset to 0 when calling a function which invokes | |
3288 * do_cmdline(). To make 'foldopen' work correctly restore KeyTyped. */ | |
3289 save_keytyped = KeyTyped; | |
9389
32e34e574716
commit https://github.com/vim/vim/commit/22fcfad29276bd5f317faf516637dcd491b96a12
Christian Brabandt <cb@256bit.org>
parents:
9252
diff
changeset
|
3290 n = (int)eval_foldexpr(flp->wp->w_p_fde, &c); |
7 | 3291 KeyTyped = save_keytyped; |
3292 | |
3293 switch (c) | |
3294 { | |
3295 /* "a1", "a2", .. : add to the fold level */ | |
3296 case 'a': if (flp->lvl >= 0) | |
3297 { | |
3298 flp->lvl += n; | |
3299 flp->lvl_next = flp->lvl; | |
3300 } | |
3301 flp->start = n; | |
3302 break; | |
3303 | |
3304 /* "s1", "s2", .. : subtract from the fold level */ | |
3305 case 's': if (flp->lvl >= 0) | |
3306 { | |
3307 if (n > flp->lvl) | |
3308 flp->lvl_next = 0; | |
3309 else | |
3310 flp->lvl_next = flp->lvl - n; | |
3311 flp->end = flp->lvl_next + 1; | |
3312 } | |
3313 break; | |
3314 | |
3315 /* ">1", ">2", .. : start a fold with a certain level */ | |
3316 case '>': flp->lvl = n; | |
3317 flp->lvl_next = n; | |
3318 flp->start = 1; | |
3319 break; | |
3320 | |
3321 /* "<1", "<2", .. : end a fold with a certain level */ | |
3322 case '<': flp->lvl_next = n - 1; | |
3323 flp->end = n; | |
3324 break; | |
3325 | |
3326 /* "=": No change in level */ | |
3327 case '=': flp->lvl_next = flp->lvl; | |
3328 break; | |
3329 | |
3330 /* "-1", "0", "1", ..: set fold level */ | |
3331 default: if (n < 0) | |
3332 /* Use the current level for the next line, so that "a1" | |
3333 * will work there. */ | |
3334 flp->lvl_next = flp->lvl; | |
3335 else | |
3336 flp->lvl_next = n; | |
3337 flp->lvl = n; | |
3338 break; | |
3339 } | |
3340 | |
3341 /* If the level is unknown for the first or the last line in the file, use | |
3342 * level 0. */ | |
3343 if (flp->lvl < 0) | |
3344 { | |
3345 if (lnum <= 1) | |
3346 { | |
3347 flp->lvl = 0; | |
3348 flp->lvl_next = 0; | |
3349 } | |
3350 if (lnum == curbuf->b_ml.ml_line_count) | |
3351 flp->lvl_next = 0; | |
3352 } | |
3353 | |
3354 curwin = win; | |
3355 curbuf = curwin->w_buffer; | |
3356 #endif | |
3357 } | |
3358 | |
3359 /* parseMarker() {{{2 */ | |
3360 /* | |
3361 * Parse 'foldmarker' and set "foldendmarker", "foldstartmarkerlen" and | |
3362 * "foldendmarkerlen". | |
3363 * Relies on the option value to have been checked for correctness already. | |
3364 */ | |
3365 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3366 parseMarker(win_T *wp) |
7 | 3367 { |
3368 foldendmarker = vim_strchr(wp->w_p_fmr, ','); | |
3369 foldstartmarkerlen = (int)(foldendmarker++ - wp->w_p_fmr); | |
3370 foldendmarkerlen = (int)STRLEN(foldendmarker); | |
3371 } | |
3372 | |
3373 /* foldlevelMarker() {{{2 */ | |
3374 /* | |
3375 * Low level function to get the foldlevel for the "marker" method. | |
3376 * "foldendmarker", "foldstartmarkerlen" and "foldendmarkerlen" must have been | |
3377 * set before calling this. | |
3378 * Requires that flp->lvl is set to the fold level of the previous line! | |
3379 * Careful: This means you can't call this function twice on the same line. | |
3380 * Doesn't use any caching. | |
3381 * Sets flp->start when a start marker was found. | |
3382 */ | |
3383 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3384 foldlevelMarker(fline_T *flp) |
7 | 3385 { |
3386 char_u *startmarker; | |
3387 int cstart; | |
3388 int cend; | |
3389 int start_lvl = flp->lvl; | |
3390 char_u *s; | |
3391 int n; | |
3392 | |
3393 /* cache a few values for speed */ | |
3394 startmarker = flp->wp->w_p_fmr; | |
3395 cstart = *startmarker; | |
3396 ++startmarker; | |
3397 cend = *foldendmarker; | |
3398 | |
3399 /* Default: no start found, next level is same as current level */ | |
3400 flp->start = 0; | |
3401 flp->lvl_next = flp->lvl; | |
3402 | |
3403 s = ml_get_buf(flp->wp->w_buffer, flp->lnum + flp->off, FALSE); | |
3404 while (*s) | |
3405 { | |
3406 if (*s == cstart | |
3407 && STRNCMP(s + 1, startmarker, foldstartmarkerlen - 1) == 0) | |
3408 { | |
3409 /* found startmarker: set flp->lvl */ | |
3410 s += foldstartmarkerlen; | |
3411 if (VIM_ISDIGIT(*s)) | |
3412 { | |
3413 n = atoi((char *)s); | |
3414 if (n > 0) | |
3415 { | |
3416 flp->lvl = n; | |
3417 flp->lvl_next = n; | |
3418 if (n <= start_lvl) | |
3419 flp->start = 1; | |
3420 else | |
3421 flp->start = n - start_lvl; | |
3422 } | |
3423 } | |
3424 else | |
3425 { | |
3426 ++flp->lvl; | |
3427 ++flp->lvl_next; | |
3428 ++flp->start; | |
3429 } | |
3430 } | |
3431 else if (*s == cend | |
3432 && STRNCMP(s + 1, foldendmarker + 1, foldendmarkerlen - 1) == 0) | |
3433 { | |
3434 /* found endmarker: set flp->lvl_next */ | |
3435 s += foldendmarkerlen; | |
3436 if (VIM_ISDIGIT(*s)) | |
3437 { | |
3438 n = atoi((char *)s); | |
3439 if (n > 0) | |
3440 { | |
3441 flp->lvl = n; | |
3442 flp->lvl_next = n - 1; | |
3443 /* never start a fold with an end marker */ | |
2054
79b8d69a4588
updated for version 7.2.340
Bram Moolenaar <bram@zimbu.org>
parents:
1985
diff
changeset
|
3444 if (flp->lvl_next > start_lvl) |
79b8d69a4588
updated for version 7.2.340
Bram Moolenaar <bram@zimbu.org>
parents:
1985
diff
changeset
|
3445 flp->lvl_next = start_lvl; |
7 | 3446 } |
3447 } | |
3448 else | |
3449 --flp->lvl_next; | |
3450 } | |
3451 else | |
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
3452 MB_PTR_ADV(s); |
7 | 3453 } |
3454 | |
3455 /* The level can't go negative, must be missing a start marker. */ | |
3456 if (flp->lvl_next < 0) | |
3457 flp->lvl_next = 0; | |
3458 } | |
3459 | |
3460 /* foldlevelSyntax() {{{2 */ | |
3461 /* | |
3462 * Low level function to get the foldlevel for the "syntax" method. | |
3463 * Doesn't use any caching. | |
3464 */ | |
3465 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3466 foldlevelSyntax(fline_T *flp) |
7 | 3467 { |
3468 #ifndef FEAT_SYN_HL | |
3469 flp->start = 0; | |
3470 flp->lvl = 0; | |
3471 #else | |
3472 linenr_T lnum = flp->lnum + flp->off; | |
3473 int n; | |
3474 | |
3475 /* Use the maximum fold level at the start of this line and the next. */ | |
3476 flp->lvl = syn_get_foldlevel(flp->wp, lnum); | |
3477 flp->start = 0; | |
3478 if (lnum < flp->wp->w_buffer->b_ml.ml_line_count) | |
3479 { | |
3480 n = syn_get_foldlevel(flp->wp, lnum + 1); | |
3481 if (n > flp->lvl) | |
3482 { | |
3483 flp->start = n - flp->lvl; /* fold(s) start here */ | |
3484 flp->lvl = n; | |
3485 } | |
3486 } | |
3487 #endif | |
3488 } | |
3489 | |
3490 /* functions for storing the fold state in a View {{{1 */ | |
3491 /* put_folds() {{{2 */ | |
3492 #if defined(FEAT_SESSION) || defined(PROTO) | |
7801
a1e71a01dbd6
commit https://github.com/vim/vim/commit/d25c16e2f2776d50245bf31d6e4d5364f12d188e
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3493 static int put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off); |
a1e71a01dbd6
commit https://github.com/vim/vim/commit/d25c16e2f2776d50245bf31d6e4d5364f12d188e
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3494 static int put_foldopen_recurse(FILE *fd, win_T *wp, garray_T *gap, linenr_T off); |
a1e71a01dbd6
commit https://github.com/vim/vim/commit/d25c16e2f2776d50245bf31d6e4d5364f12d188e
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3495 static int put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off); |
7 | 3496 |
3497 /* | |
3498 * Write commands to "fd" to restore the manual folds in window "wp". | |
3499 * Return FAIL if writing fails. | |
3500 */ | |
3501 int | |
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3502 put_folds(FILE *fd, win_T *wp) |
7 | 3503 { |
3504 if (foldmethodIsManual(wp)) | |
3505 { | |
3506 if (put_line(fd, "silent! normal! zE") == FAIL | |
3507 || put_folds_recurse(fd, &wp->w_folds, (linenr_T)0) == FAIL) | |
3508 return FAIL; | |
3509 } | |
3510 | |
3511 /* If some folds are manually opened/closed, need to restore that. */ | |
3512 if (wp->w_fold_manual) | |
3392 | 3513 return put_foldopen_recurse(fd, wp, &wp->w_folds, (linenr_T)0); |
7 | 3514 |
3515 return OK; | |
3516 } | |
3517 | |
3518 /* put_folds_recurse() {{{2 */ | |
3519 /* | |
3520 * Write commands to "fd" to recreate manually created folds. | |
3521 * Returns FAIL when writing failed. | |
3522 */ | |
3523 static int | |
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3524 put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off) |
7 | 3525 { |
3526 int i; | |
3527 fold_T *fp; | |
3528 | |
3529 fp = (fold_T *)gap->ga_data; | |
3530 for (i = 0; i < gap->ga_len; i++) | |
3531 { | |
3532 /* Do nested folds first, they will be created closed. */ | |
3533 if (put_folds_recurse(fd, &fp->fd_nested, off + fp->fd_top) == FAIL) | |
3534 return FAIL; | |
3535 if (fprintf(fd, "%ld,%ldfold", fp->fd_top + off, | |
3536 fp->fd_top + off + fp->fd_len - 1) < 0 | |
3537 || put_eol(fd) == FAIL) | |
3538 return FAIL; | |
3539 ++fp; | |
3540 } | |
3541 return OK; | |
3542 } | |
3543 | |
3544 /* put_foldopen_recurse() {{{2 */ | |
3545 /* | |
3546 * Write commands to "fd" to open and close manually opened/closed folds. | |
3547 * Returns FAIL when writing failed. | |
3548 */ | |
3549 static int | |
7821
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commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3550 put_foldopen_recurse( |
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3551 FILE *fd, |
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3552 win_T *wp, |
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3553 garray_T *gap, |
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3554 linenr_T off) |
7 | 3555 { |
3556 int i; | |
3392 | 3557 int level; |
7 | 3558 fold_T *fp; |
3559 | |
3560 fp = (fold_T *)gap->ga_data; | |
3561 for (i = 0; i < gap->ga_len; i++) | |
3562 { | |
3563 if (fp->fd_flags != FD_LEVEL) | |
3564 { | |
3565 if (fp->fd_nested.ga_len > 0) | |
3566 { | |
3392 | 3567 /* open nested folds while this fold is open */ |
7 | 3568 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 |
3569 || put_eol(fd) == FAIL | |
3766 | 3570 || put_line(fd, "normal! zo") == FAIL) |
7 | 3571 return FAIL; |
3392 | 3572 if (put_foldopen_recurse(fd, wp, &fp->fd_nested, |
3573 off + fp->fd_top) | |
7 | 3574 == FAIL) |
3575 return FAIL; | |
3392 | 3576 /* close the parent when needed */ |
3577 if (fp->fd_flags == FD_CLOSED) | |
3578 { | |
3579 if (put_fold_open_close(fd, fp, off) == FAIL) | |
3580 return FAIL; | |
3581 } | |
3582 } | |
3583 else | |
3584 { | |
3585 /* Open or close the leaf according to the window foldlevel. | |
3586 * Do not close a leaf that is already closed, as it will close | |
3587 * the parent. */ | |
3588 level = foldLevelWin(wp, off + fp->fd_top); | |
3589 if ((fp->fd_flags == FD_CLOSED && wp->w_p_fdl >= level) | |
3590 || (fp->fd_flags != FD_CLOSED && wp->w_p_fdl < level)) | |
3591 if (put_fold_open_close(fd, fp, off) == FAIL) | |
3592 return FAIL; | |
7 | 3593 } |
3594 } | |
3595 ++fp; | |
3596 } | |
3597 | |
3598 return OK; | |
3599 } | |
3392 | 3600 |
3601 /* put_fold_open_close() {{{2 */ | |
3602 /* | |
3603 * Write the open or close command to "fd". | |
3604 * Returns FAIL when writing failed. | |
3605 */ | |
3606 static int | |
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3607 put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off) |
3392 | 3608 { |
3609 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 | |
3610 || put_eol(fd) == FAIL | |
3766 | 3611 || fprintf(fd, "normal! z%c", |
3392 | 3612 fp->fd_flags == FD_CLOSED ? 'c' : 'o') < 0 |
3613 || put_eol(fd) == FAIL) | |
3614 return FAIL; | |
3615 | |
3616 return OK; | |
3617 } | |
7 | 3618 #endif /* FEAT_SESSION */ |
3619 | |
3620 /* }}}1 */ | |
17928
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diff
changeset
|
3621 #endif // defined(FEAT_FOLDING) || defined(PROTO) |
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diff
changeset
|
3622 |
34639bba19b0
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parents:
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diff
changeset
|
3623 #if defined(FEAT_EVAL) || defined(PROTO) |
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diff
changeset
|
3624 |
34639bba19b0
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parents:
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diff
changeset
|
3625 /* |
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patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3626 * "foldclosed()" and "foldclosedend()" functions |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3627 */ |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3628 static void |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3629 foldclosed_both( |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3630 typval_T *argvars UNUSED, |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3631 typval_T *rettv, |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3632 int end UNUSED) |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3633 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3634 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3635 linenr_T lnum; |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3636 linenr_T first, last; |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3637 |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3638 lnum = tv_get_lnum(argvars); |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3639 if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3640 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3641 if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL)) |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3642 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3643 if (end) |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3644 rettv->vval.v_number = (varnumber_T)last; |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3645 else |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3646 rettv->vval.v_number = (varnumber_T)first; |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
17851
diff
changeset
|
3647 return; |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3648 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
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parents:
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diff
changeset
|
3649 } |
34639bba19b0
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parents:
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diff
changeset
|
3650 #endif |
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diff
changeset
|
3651 rettv->vval.v_number = -1; |
34639bba19b0
patch 8.1.1960: fold code is spread out
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diff
changeset
|
3652 } |
34639bba19b0
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diff
changeset
|
3653 |
34639bba19b0
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diff
changeset
|
3654 /* |
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diff
changeset
|
3655 * "foldclosed()" function |
34639bba19b0
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diff
changeset
|
3656 */ |
34639bba19b0
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diff
changeset
|
3657 void |
34639bba19b0
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diff
changeset
|
3658 f_foldclosed(typval_T *argvars, typval_T *rettv) |
34639bba19b0
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diff
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|
3659 { |
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diff
changeset
|
3660 foldclosed_both(argvars, rettv, FALSE); |
34639bba19b0
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diff
changeset
|
3661 } |
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diff
changeset
|
3662 |
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diff
changeset
|
3663 /* |
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diff
changeset
|
3664 * "foldclosedend()" function |
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diff
changeset
|
3665 */ |
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diff
changeset
|
3666 void |
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diff
changeset
|
3667 f_foldclosedend(typval_T *argvars, typval_T *rettv) |
34639bba19b0
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diff
changeset
|
3668 { |
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diff
changeset
|
3669 foldclosed_both(argvars, rettv, TRUE); |
34639bba19b0
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parents:
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diff
changeset
|
3670 } |
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diff
changeset
|
3671 |
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parents:
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diff
changeset
|
3672 /* |
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parents:
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diff
changeset
|
3673 * "foldlevel()" function |
34639bba19b0
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diff
changeset
|
3674 */ |
34639bba19b0
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diff
changeset
|
3675 void |
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diff
changeset
|
3676 f_foldlevel(typval_T *argvars UNUSED, typval_T *rettv UNUSED) |
34639bba19b0
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diff
changeset
|
3677 { |
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diff
changeset
|
3678 # ifdef FEAT_FOLDING |
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diff
changeset
|
3679 linenr_T lnum; |
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diff
changeset
|
3680 |
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parents:
17851
diff
changeset
|
3681 lnum = tv_get_lnum(argvars); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3682 if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3683 rettv->vval.v_number = foldLevel(lnum); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3684 # endif |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3685 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3686 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3687 /* |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3688 * "foldtext()" function |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3689 */ |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3690 void |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3691 f_foldtext(typval_T *argvars UNUSED, typval_T *rettv) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3692 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3693 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3694 linenr_T foldstart; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3695 linenr_T foldend; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3696 char_u *dashes; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3697 linenr_T lnum; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3698 char_u *s; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3699 char_u *r; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3700 int len; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3701 char *txt; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3702 long count; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3703 # endif |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3704 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3705 rettv->v_type = VAR_STRING; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3706 rettv->vval.v_string = NULL; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3707 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3708 foldstart = (linenr_T)get_vim_var_nr(VV_FOLDSTART); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3709 foldend = (linenr_T)get_vim_var_nr(VV_FOLDEND); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3710 dashes = get_vim_var_str(VV_FOLDDASHES); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3711 if (foldstart > 0 && foldend <= curbuf->b_ml.ml_line_count |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3712 && dashes != NULL) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3713 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3714 // Find first non-empty line in the fold. |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3715 for (lnum = foldstart; lnum < foldend; ++lnum) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3716 if (!linewhite(lnum)) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3717 break; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3718 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3719 // Find interesting text in this line. |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3720 s = skipwhite(ml_get(lnum)); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3721 // skip C comment-start |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3722 if (s[0] == '/' && (s[1] == '*' || s[1] == '/')) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3723 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3724 s = skipwhite(s + 2); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3725 if (*skipwhite(s) == NUL |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3726 && lnum + 1 < (linenr_T)get_vim_var_nr(VV_FOLDEND)) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3727 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3728 s = skipwhite(ml_get(lnum + 1)); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3729 if (*s == '*') |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3730 s = skipwhite(s + 1); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3731 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3732 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3733 count = (long)(foldend - foldstart + 1); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3734 txt = NGETTEXT("+-%s%3ld line: ", "+-%s%3ld lines: ", count); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3735 r = alloc(STRLEN(txt) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3736 + STRLEN(dashes) // for %s |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3737 + 20 // for %3ld |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3738 + STRLEN(s)); // concatenated |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3739 if (r != NULL) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3740 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3741 sprintf((char *)r, txt, dashes, count); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3742 len = (int)STRLEN(r); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3743 STRCAT(r, s); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3744 // remove 'foldmarker' and 'commentstring' |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3745 foldtext_cleanup(r + len); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3746 rettv->vval.v_string = r; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3747 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3748 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3749 # endif |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3750 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3751 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3752 /* |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3753 * "foldtextresult(lnum)" function |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3754 */ |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3755 void |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3756 f_foldtextresult(typval_T *argvars UNUSED, typval_T *rettv) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3757 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3758 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3759 linenr_T lnum; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3760 char_u *text; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3761 char_u buf[FOLD_TEXT_LEN]; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3762 foldinfo_T foldinfo; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3763 int fold_count; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3764 static int entered = FALSE; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3765 # endif |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3766 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3767 rettv->v_type = VAR_STRING; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3768 rettv->vval.v_string = NULL; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3769 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3770 if (entered) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3771 return; // reject recursive use |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3772 entered = TRUE; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3773 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3774 lnum = tv_get_lnum(argvars); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3775 // treat illegal types and illegal string values for {lnum} the same |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3776 if (lnum < 0) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3777 lnum = 0; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3778 fold_count = foldedCount(curwin, lnum, &foldinfo); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3779 if (fold_count > 0) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3780 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3781 text = get_foldtext(curwin, lnum, lnum + fold_count - 1, |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3782 &foldinfo, buf); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3783 if (text == buf) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3784 text = vim_strsave(text); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3785 rettv->vval.v_string = text; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3786 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3787 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3788 entered = FALSE; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3789 # endif |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3790 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3791 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3792 #endif // FEAT_EVAL |