Mercurial > vim
annotate src/fold.c @ 22798:3c72820f88b2 v8.2.1947
patch 8.2.1947: crash when using "zj" without folds
Commit: https://github.com/vim/vim/commit/c136a3528b7ebb825c3863d701af44f023381181
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Nov 3 20:05:40 2020 +0100
patch 8.2.1947: crash when using "zj" without folds
Problem: Crash when using "zj" without folds. (Sean Dewar)
Solution: Check for at least one fold. (closes https://github.com/vim/vim/issues/7245)
author | Bram Moolenaar <Bram@vim.org> |
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date | Tue, 03 Nov 2020 20:15:03 +0100 |
parents | 86696c617f70 |
children | b05cfda397dc |
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 | |
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19 // local declarations. {{{1 |
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20 // typedef fold_T {{{2 |
7 | 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 { | |
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29 linenr_T fd_top; // first line of fold; for nested fold |
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30 // relative to parent |
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31 linenr_T fd_len; // number of lines in the fold |
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32 garray_T fd_nested; // array of nested folds |
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33 char fd_flags; // see below |
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34 char fd_small; // TRUE, FALSE or MAYBE: fold smaller than |
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35 // 'foldminlines'; MAYBE applies to nested |
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36 // folds too |
7 | 37 } fold_T; |
38 | |
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39 #define FD_OPEN 0 // fold is open (nested ones can be closed) |
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40 #define FD_CLOSED 1 // fold is closed |
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41 #define FD_LEVEL 2 // depends on 'foldlevel' (nested folds too) |
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42 |
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43 #define MAX_LEVEL 20 // maximum fold depth |
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44 |
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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 | |
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87 // Flags used for "done" argument of setManualFold. |
7 | 88 #define DONE_NOTHING 0 |
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89 #define DONE_ACTION 1 // did close or open a fold |
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90 #define DONE_FOLD 2 // did find a fold |
7 | 91 |
92 static int foldstartmarkerlen; | |
93 static char_u *foldendmarker; | |
94 static int foldendmarkerlen; | |
95 | |
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96 // Exported folding functions. {{{1 |
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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 | |
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110 // hasAnyFolding() {{{2 |
7 | 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 { |
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117 // very simple now, but can become more complex later |
7 | 118 return (win->w_p_fen |
119 && (!foldmethodIsManual(win) || win->w_folds.ga_len > 0)); | |
120 } | |
121 | |
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122 // hasFolding() {{{2 |
7 | 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 | |
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135 // hasFoldingWin() {{{2 |
7 | 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 | |
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195 // Remember lowest level of fold that starts in "lnum". |
7 | 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 | |
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202 // is this fold closed? |
7 | 203 had_folded = check_closed(win, fp, &use_level, level, |
204 &maybe_small, lnum - lnum_rel); | |
205 if (had_folded) | |
206 { | |
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207 // Fold closed: Set last and quit loop. |
7 | 208 last += fp->fd_len - 1; |
209 break; | |
210 } | |
211 | |
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212 // Fold found, but it's open: Check nested folds. Line number is |
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213 // relative to containing fold. |
7 | 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 | |
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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 { |
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254 // While updating the folds lines between invalid_top and invalid_bot have |
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255 // an undefined fold level. Otherwise update the folds first. |
7 | 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 | |
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263 // Return quickly when there is no folding at all in this window. |
7 | 264 if (!hasAnyFolding(curwin)) |
265 return 0; | |
266 | |
267 return foldLevelWin(curwin, lnum); | |
268 } | |
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269 #endif |
7 | 270 |
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271 // lineFolded() {{{2 |
7 | 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 | |
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284 // foldedCount() {{{2 |
7 | 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 | |
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303 // foldmethodIsManual() {{{2 |
7 | 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 | |
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313 // foldmethodIsIndent() {{{2 |
7 | 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 | |
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323 // foldmethodIsExpr() {{{2 |
7 | 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 | |
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333 // foldmethodIsMarker() {{{2 |
7 | 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 | |
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343 // foldmethodIsSyntax() {{{2 |
7 | 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 | |
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353 // foldmethodIsDiff() {{{2 |
7 | 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 | |
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363 // closeFold() {{{2 |
7 | 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 | |
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374 // closeFoldRecurse() {{{2 |
7 | 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 | |
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384 // opFoldRange() {{{2 |
7 | 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 { |
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397 int done = DONE_NOTHING; // avoid error messages |
7 | 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; | |
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404 // Opening one level only: next fold to open is after the one going to |
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405 // be opened. |
7 | 406 if (opening && !recurse) |
407 (void)hasFolding(lnum, NULL, &lnum_next); | |
408 (void)setManualFold(lnum, opening, recurse, &done); | |
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409 // Closing one level only: next line to close a fold is after just |
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410 // closed fold. |
7 | 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)); |
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416 // Force a redraw to remove the Visual highlighting. |
7 | 417 if (had_visual) |
418 redraw_curbuf_later(INVERTED); | |
419 } | |
420 | |
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421 // openFold() {{{2 |
7 | 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 | |
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432 // openFoldRecurse() {{{2 |
7 | 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 | |
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442 // foldOpenCursor() {{{2 |
7 | 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 | |
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462 // newFoldLevel() {{{2 |
7 | 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 { | |
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500 // Set all flags for the first level of folds to FD_LEVEL. Following |
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501 // manual open/close will then change the flags to FD_OPEN or |
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502 // FD_CLOSED for those folds that don't use 'foldlevel'. |
7 | 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 | |
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511 // foldCheckClose() {{{2 |
7 | 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 { |
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518 if (*p_fcl != NUL) // can only be "all" right now |
7 | 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 | |
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527 // checkCloseRec() {{{2 |
7 | 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 { | |
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538 // Only manually opened folds may need to be closed. |
7 | 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 | |
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555 // foldCreateAllowed() {{{2 |
7 | 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 | |
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572 // foldCreate() {{{2 |
7 | 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 { | |
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593 // reverse the range |
7 | 594 end = start_rel; |
595 start = end_rel; | |
596 start_rel = start; | |
597 end_rel = end; | |
598 } | |
599 | |
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600 // When 'foldmethod' is "marker" add markers, which creates the folds. |
7 | 601 if (foldmethodIsMarker(curwin)) |
602 { | |
603 foldCreateMarkers(start, end); | |
604 return; | |
605 } | |
606 | |
607 checkupdate(curwin); | |
608 | |
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609 // Find the place to insert the new fold. |
7 | 610 gap = &curwin->w_folds; |
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611 if (gap->ga_len == 0) |
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612 i = 0; |
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613 else |
7 | 614 { |
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615 for (;;) |
7 | 616 { |
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617 if (!foldFind(gap, start_rel, &fp)) |
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618 break; |
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619 if (fp->fd_top + fp->fd_len > end_rel) |
7 | 620 { |
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621 // New fold is completely inside this fold: Go one level |
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622 // deeper. |
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623 gap = &fp->fd_nested; |
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624 start_rel -= fp->fd_top; |
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625 end_rel -= fp->fd_top; |
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626 if (use_level || fp->fd_flags == FD_LEVEL) |
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627 { |
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628 use_level = TRUE; |
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629 if (level >= curwin->w_p_fdl) |
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630 closed = TRUE; |
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631 } |
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632 else if (fp->fd_flags == FD_CLOSED) |
7 | 633 closed = TRUE; |
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634 ++level; |
7 | 635 } |
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636 else |
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637 { |
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638 // This fold and new fold overlap: Insert here and move some |
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639 // folds inside the new fold. |
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640 break; |
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641 } |
7 | 642 } |
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643 i = (int)(fp - (fold_T *)gap->ga_data); |
7 | 644 } |
645 | |
646 if (ga_grow(gap, 1) == OK) | |
647 { | |
648 fp = (fold_T *)gap->ga_data + i; | |
649 ga_init2(&fold_ga, (int)sizeof(fold_T), 10); | |
650 | |
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651 // Count number of folds that will be contained in the new fold. |
7 | 652 for (cont = 0; i + cont < gap->ga_len; ++cont) |
653 if (fp[cont].fd_top > end_rel) | |
654 break; | |
655 if (cont > 0 && ga_grow(&fold_ga, cont) == OK) | |
656 { | |
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657 // If the first fold starts before the new fold, let the new fold |
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658 // start there. Otherwise the existing fold would change. |
7 | 659 if (start_rel > fp->fd_top) |
660 start_rel = fp->fd_top; | |
661 | |
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662 // When last contained fold isn't completely contained, adjust end |
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663 // of new fold. |
7 | 664 if (end_rel < fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1) |
665 end_rel = fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1; | |
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666 // Move contained folds to inside new fold. |
7 | 667 mch_memmove(fold_ga.ga_data, fp, sizeof(fold_T) * cont); |
668 fold_ga.ga_len += cont; | |
669 i += cont; | |
670 | |
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671 // Adjust line numbers in contained folds to be relative to the |
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672 // new fold. |
7 | 673 for (j = 0; j < cont; ++j) |
674 ((fold_T *)fold_ga.ga_data)[j].fd_top -= start_rel; | |
675 } | |
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676 // Move remaining entries to after the new fold. |
7 | 677 if (i < gap->ga_len) |
678 mch_memmove(fp + 1, (fold_T *)gap->ga_data + i, | |
679 sizeof(fold_T) * (gap->ga_len - i)); | |
680 gap->ga_len = gap->ga_len + 1 - cont; | |
681 | |
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682 // insert new fold |
7 | 683 fp->fd_nested = fold_ga; |
684 fp->fd_top = start_rel; | |
685 fp->fd_len = end_rel - start_rel + 1; | |
686 | |
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687 // We want the new fold to be closed. If it would remain open because |
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688 // of using 'foldlevel', need to adjust fd_flags of containing folds. |
7 | 689 if (use_level && !closed && level < curwin->w_p_fdl) |
690 closeFold(start, 1L); | |
691 if (!use_level) | |
692 curwin->w_fold_manual = TRUE; | |
693 fp->fd_flags = FD_CLOSED; | |
694 fp->fd_small = MAYBE; | |
695 | |
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696 // redraw |
7 | 697 changed_window_setting(); |
698 } | |
699 } | |
700 | |
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701 // deleteFold() {{{2 |
7 | 702 /* |
703 * Delete a fold at line "start" in the current window. | |
704 * When "end" is not 0, delete all folds from "start" to "end". | |
705 * When "recursive" is TRUE delete recursively. | |
706 */ | |
707 void | |
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708 deleteFold( |
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709 linenr_T start, |
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710 linenr_T end, |
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711 int recursive, |
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712 int had_visual) // TRUE when Visual selection used |
7 | 713 { |
714 garray_T *gap; | |
715 fold_T *fp; | |
716 garray_T *found_ga; | |
717 fold_T *found_fp = NULL; | |
718 linenr_T found_off = 0; | |
1780 | 719 int use_level; |
7 | 720 int maybe_small = FALSE; |
721 int level = 0; | |
722 linenr_T lnum = start; | |
723 linenr_T lnum_off; | |
724 int did_one = FALSE; | |
725 linenr_T first_lnum = MAXLNUM; | |
726 linenr_T last_lnum = 0; | |
727 | |
728 checkupdate(curwin); | |
729 | |
730 while (lnum <= end) | |
731 { | |
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732 // Find the deepest fold for "start". |
7 | 733 gap = &curwin->w_folds; |
734 found_ga = NULL; | |
735 lnum_off = 0; | |
1780 | 736 use_level = FALSE; |
7 | 737 for (;;) |
738 { | |
739 if (!foldFind(gap, lnum - lnum_off, &fp)) | |
740 break; | |
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741 // lnum is inside this fold, remember info |
7 | 742 found_ga = gap; |
743 found_fp = fp; | |
744 found_off = lnum_off; | |
745 | |
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746 // if "lnum" is folded, don't check nesting |
7 | 747 if (check_closed(curwin, fp, &use_level, level, |
748 &maybe_small, lnum_off)) | |
749 break; | |
750 | |
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751 // check nested folds |
7 | 752 gap = &fp->fd_nested; |
753 lnum_off += fp->fd_top; | |
754 ++level; | |
755 } | |
756 if (found_ga == NULL) | |
757 { | |
758 ++lnum; | |
759 } | |
760 else | |
761 { | |
762 lnum = found_fp->fd_top + found_fp->fd_len + found_off; | |
763 | |
764 if (foldmethodIsManual(curwin)) | |
765 deleteFoldEntry(found_ga, | |
766 (int)(found_fp - (fold_T *)found_ga->ga_data), recursive); | |
767 else | |
768 { | |
1780 | 769 if (first_lnum > found_fp->fd_top + found_off) |
770 first_lnum = found_fp->fd_top + found_off; | |
771 if (last_lnum < lnum) | |
7 | 772 last_lnum = lnum; |
1780 | 773 if (!did_one) |
774 parseMarker(curwin); | |
7 | 775 deleteFoldMarkers(found_fp, recursive, found_off); |
776 } | |
1780 | 777 did_one = TRUE; |
7 | 778 |
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779 // redraw window |
7 | 780 changed_window_setting(); |
781 } | |
782 } | |
783 if (!did_one) | |
784 { | |
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785 emsg(_(e_nofold)); |
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786 // Force a redraw to remove the Visual highlighting. |
7 | 787 if (had_visual) |
788 redraw_curbuf_later(INVERTED); | |
789 } | |
1780 | 790 else |
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791 // Deleting markers may make cursor column invalid. |
1780 | 792 check_cursor_col(); |
793 | |
7 | 794 if (last_lnum > 0) |
795 changed_lines(first_lnum, (colnr_T)0, last_lnum, 0L); | |
796 } | |
797 | |
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798 // clearFolding() {{{2 |
7 | 799 /* |
800 * Remove all folding for window "win". | |
801 */ | |
802 void | |
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803 clearFolding(win_T *win) |
7 | 804 { |
805 deleteFoldRecurse(&win->w_folds); | |
806 win->w_foldinvalid = FALSE; | |
807 } | |
808 | |
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809 // foldUpdate() {{{2 |
7 | 810 /* |
811 * Update folds for changes in the buffer of a window. | |
812 * Note that inserted/deleted lines must have already been taken care of by | |
813 * calling foldMarkAdjust(). | |
814 * The changes in lines from top to bot (inclusive). | |
815 */ | |
816 void | |
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817 foldUpdate(win_T *wp, linenr_T top, linenr_T bot) |
7 | 818 { |
819 fold_T *fp; | |
820 | |
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821 if (disable_fold_update > 0) |
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822 return; |
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823 #ifdef FEAT_DIFF |
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824 if (need_diff_redraw) |
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825 // will update later |
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826 return; |
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827 #endif |
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828 |
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829 if (wp->w_folds.ga_len > 0) |
7 | 830 { |
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831 // Mark all folds from top to bot as maybe-small. |
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832 (void)foldFind(&wp->w_folds, top, &fp); |
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833 while (fp < (fold_T *)wp->w_folds.ga_data + wp->w_folds.ga_len |
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834 && fp->fd_top < bot) |
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835 { |
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836 fp->fd_small = MAYBE; |
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837 ++fp; |
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838 } |
7 | 839 } |
840 | |
841 if (foldmethodIsIndent(wp) | |
842 || foldmethodIsExpr(wp) | |
843 || foldmethodIsMarker(wp) | |
844 #ifdef FEAT_DIFF | |
845 || foldmethodIsDiff(wp) | |
846 #endif | |
847 || foldmethodIsSyntax(wp)) | |
1424 | 848 { |
849 int save_got_int = got_int; | |
850 | |
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851 // reset got_int here, otherwise it won't work |
1424 | 852 got_int = FALSE; |
7 | 853 foldUpdateIEMS(wp, top, bot); |
1424 | 854 got_int |= save_got_int; |
855 } | |
7 | 856 } |
857 | |
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858 // foldUpdateAll() {{{2 |
7 | 859 /* |
860 * Update all lines in a window for folding. | |
861 * Used when a fold setting changes or after reloading the buffer. | |
862 * The actual updating is postponed until fold info is used, to avoid doing | |
863 * every time a setting is changed or a syntax item is added. | |
864 */ | |
865 void | |
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866 foldUpdateAll(win_T *win) |
7 | 867 { |
868 win->w_foldinvalid = TRUE; | |
869 redraw_win_later(win, NOT_VALID); | |
870 } | |
871 | |
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872 // foldMoveTo() {{{2 |
7 | 873 /* |
874 * If "updown" is FALSE: Move to the start or end of the fold. | |
875 * If "updown" is TRUE: move to fold at the same level. | |
876 * If not moved return FAIL. | |
877 */ | |
878 int | |
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879 foldMoveTo( |
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880 int updown, |
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881 int dir, // FORWARD or BACKWARD |
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882 long count) |
7 | 883 { |
884 long n; | |
885 int retval = FAIL; | |
886 linenr_T lnum_off; | |
887 linenr_T lnum_found; | |
888 linenr_T lnum; | |
889 int use_level; | |
890 int maybe_small; | |
891 garray_T *gap; | |
892 fold_T *fp; | |
893 int level; | |
894 int last; | |
895 | |
36 | 896 checkupdate(curwin); |
897 | |
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898 // Repeat "count" times. |
7 | 899 for (n = 0; n < count; ++n) |
900 { | |
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901 // Find nested folds. Stop when a fold is closed. The deepest fold |
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902 // that moves the cursor is used. |
7 | 903 lnum_off = 0; |
904 gap = &curwin->w_folds; | |
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905 if (gap->ga_len == 0) |
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906 break; |
7 | 907 use_level = FALSE; |
908 maybe_small = FALSE; | |
909 lnum_found = curwin->w_cursor.lnum; | |
910 level = 0; | |
911 last = FALSE; | |
912 for (;;) | |
913 { | |
914 if (!foldFind(gap, curwin->w_cursor.lnum - lnum_off, &fp)) | |
915 { | |
916 if (!updown) | |
917 break; | |
918 | |
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919 // When moving up, consider a fold above the cursor; when |
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920 // moving down consider a fold below the cursor. |
7 | 921 if (dir == FORWARD) |
922 { | |
923 if (fp - (fold_T *)gap->ga_data >= gap->ga_len) | |
924 break; | |
925 --fp; | |
926 } | |
927 else | |
928 { | |
929 if (fp == (fold_T *)gap->ga_data) | |
930 break; | |
931 } | |
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932 // don't look for contained folds, they will always move |
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933 // the cursor too far. |
7 | 934 last = TRUE; |
935 } | |
936 | |
937 if (!last) | |
938 { | |
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939 // Check if this fold is closed. |
7 | 940 if (check_closed(curwin, fp, &use_level, level, |
941 &maybe_small, lnum_off)) | |
942 last = TRUE; | |
943 | |
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944 // "[z" and "]z" stop at closed fold |
7 | 945 if (last && !updown) |
946 break; | |
947 } | |
948 | |
949 if (updown) | |
950 { | |
951 if (dir == FORWARD) | |
952 { | |
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953 // to start of next fold if there is one |
7 | 954 if (fp + 1 - (fold_T *)gap->ga_data < gap->ga_len) |
955 { | |
956 lnum = fp[1].fd_top + lnum_off; | |
957 if (lnum > curwin->w_cursor.lnum) | |
958 lnum_found = lnum; | |
959 } | |
960 } | |
961 else | |
962 { | |
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963 // to end of previous fold if there is one |
7 | 964 if (fp > (fold_T *)gap->ga_data) |
965 { | |
966 lnum = fp[-1].fd_top + lnum_off + fp[-1].fd_len - 1; | |
967 if (lnum < curwin->w_cursor.lnum) | |
968 lnum_found = lnum; | |
969 } | |
970 } | |
971 } | |
972 else | |
973 { | |
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974 // Open fold found, set cursor to its start/end and then check |
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975 // nested folds. |
7 | 976 if (dir == FORWARD) |
977 { | |
978 lnum = fp->fd_top + lnum_off + fp->fd_len - 1; | |
979 if (lnum > curwin->w_cursor.lnum) | |
980 lnum_found = lnum; | |
981 } | |
982 else | |
983 { | |
984 lnum = fp->fd_top + lnum_off; | |
985 if (lnum < curwin->w_cursor.lnum) | |
986 lnum_found = lnum; | |
987 } | |
988 } | |
989 | |
990 if (last) | |
991 break; | |
992 | |
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993 // Check nested folds (if any). |
7 | 994 gap = &fp->fd_nested; |
995 lnum_off += fp->fd_top; | |
996 ++level; | |
997 } | |
998 if (lnum_found != curwin->w_cursor.lnum) | |
999 { | |
1000 if (retval == FAIL) | |
1001 setpcmark(); | |
1002 curwin->w_cursor.lnum = lnum_found; | |
1003 curwin->w_cursor.col = 0; | |
1004 retval = OK; | |
1005 } | |
1006 else | |
1007 break; | |
1008 } | |
1009 | |
1010 return retval; | |
1011 } | |
1012 | |
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1013 // foldInitWin() {{{2 |
7 | 1014 /* |
1015 * Init the fold info in a new window. | |
1016 */ | |
1017 void | |
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1018 foldInitWin(win_T *new_win) |
7 | 1019 { |
3263 | 1020 ga_init2(&new_win->w_folds, (int)sizeof(fold_T), 10); |
7 | 1021 } |
1022 | |
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1023 // find_wl_entry() {{{2 |
7 | 1024 /* |
1025 * Find an entry in the win->w_lines[] array for buffer line "lnum". | |
1026 * Only valid entries are considered (for entries where wl_valid is FALSE the | |
1027 * line number can be wrong). | |
1028 * Returns index of entry or -1 if not found. | |
1029 */ | |
1030 int | |
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1031 find_wl_entry(win_T *win, linenr_T lnum) |
7 | 1032 { |
1033 int i; | |
1034 | |
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1035 for (i = 0; i < win->w_lines_valid; ++i) |
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1036 if (win->w_lines[i].wl_valid) |
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1037 { |
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1038 if (lnum < win->w_lines[i].wl_lnum) |
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1039 return -1; |
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1040 if (lnum <= win->w_lines[i].wl_lastlnum) |
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1041 return i; |
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1042 } |
7 | 1043 return -1; |
1044 } | |
1045 | |
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1046 // foldAdjustVisual() {{{2 |
7 | 1047 /* |
1048 * Adjust the Visual area to include any fold at the start or end completely. | |
1049 */ | |
1050 void | |
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1051 foldAdjustVisual(void) |
7 | 1052 { |
1053 pos_T *start, *end; | |
1054 char_u *ptr; | |
1055 | |
1056 if (!VIsual_active || !hasAnyFolding(curwin)) | |
1057 return; | |
1058 | |
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1059 if (LTOREQ_POS(VIsual, curwin->w_cursor)) |
7 | 1060 { |
1061 start = &VIsual; | |
1062 end = &curwin->w_cursor; | |
1063 } | |
1064 else | |
1065 { | |
1066 start = &curwin->w_cursor; | |
1067 end = &VIsual; | |
1068 } | |
1069 if (hasFolding(start->lnum, &start->lnum, NULL)) | |
1070 start->col = 0; | |
1071 if (hasFolding(end->lnum, NULL, &end->lnum)) | |
1072 { | |
1073 ptr = ml_get(end->lnum); | |
1074 end->col = (colnr_T)STRLEN(ptr); | |
1075 if (end->col > 0 && *p_sel == 'o') | |
1076 --end->col; | |
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1077 // prevent cursor from moving on the trail byte |
7 | 1078 if (has_mbyte) |
1079 mb_adjust_cursor(); | |
1080 } | |
1081 } | |
1082 | |
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1083 // cursor_foldstart() {{{2 |
7 | 1084 /* |
1085 * Move the cursor to the first line of a closed fold. | |
1086 */ | |
1087 void | |
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1088 foldAdjustCursor(void) |
7 | 1089 { |
1090 (void)hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL); | |
1091 } | |
1092 | |
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1093 // Internal functions for "fold_T" {{{1 |
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1094 // cloneFoldGrowArray() {{{2 |
7 | 1095 /* |
1096 * Will "clone" (i.e deep copy) a garray_T of folds. | |
1097 * | |
1098 * Return FAIL if the operation cannot be completed, otherwise OK. | |
1099 */ | |
1100 void | |
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1101 cloneFoldGrowArray(garray_T *from, garray_T *to) |
7 | 1102 { |
1103 int i; | |
1104 fold_T *from_p; | |
1105 fold_T *to_p; | |
1106 | |
1107 ga_init2(to, from->ga_itemsize, from->ga_growsize); | |
1108 if (from->ga_len == 0 || ga_grow(to, from->ga_len) == FAIL) | |
1109 return; | |
1110 | |
1111 from_p = (fold_T *)from->ga_data; | |
1112 to_p = (fold_T *)to->ga_data; | |
1113 | |
1114 for (i = 0; i < from->ga_len; i++) | |
1115 { | |
1116 to_p->fd_top = from_p->fd_top; | |
1117 to_p->fd_len = from_p->fd_len; | |
1118 to_p->fd_flags = from_p->fd_flags; | |
1119 to_p->fd_small = from_p->fd_small; | |
1120 cloneFoldGrowArray(&from_p->fd_nested, &to_p->fd_nested); | |
1121 ++to->ga_len; | |
1122 ++from_p; | |
1123 ++to_p; | |
1124 } | |
1125 } | |
1126 | |
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1127 // foldFind() {{{2 |
7 | 1128 /* |
1129 * Search for line "lnum" in folds of growarray "gap". | |
1130 * Set *fpp to the fold struct for the fold that contains "lnum" or | |
1131 * the first fold below it (careful: it can be beyond the end of the array!). | |
1132 * Returns FALSE when there is no fold that contains "lnum". | |
1133 */ | |
1134 static int | |
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1135 foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp) |
7 | 1136 { |
1137 linenr_T low, high; | |
1138 fold_T *fp; | |
1139 int i; | |
1140 | |
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1141 if (gap->ga_len == 0) |
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1142 { |
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1143 *fpp = NULL; |
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1144 return FALSE; |
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1145 } |
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1146 |
7 | 1147 /* |
1148 * Perform a binary search. | |
1149 * "low" is lowest index of possible match. | |
1150 * "high" is highest index of possible match. | |
1151 */ | |
1152 fp = (fold_T *)gap->ga_data; | |
1153 low = 0; | |
1154 high = gap->ga_len - 1; | |
1155 while (low <= high) | |
1156 { | |
1157 i = (low + high) / 2; | |
1158 if (fp[i].fd_top > lnum) | |
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1159 // fold below lnum, adjust high |
7 | 1160 high = i - 1; |
1161 else if (fp[i].fd_top + fp[i].fd_len <= lnum) | |
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1162 // fold above lnum, adjust low |
7 | 1163 low = i + 1; |
1164 else | |
1165 { | |
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1166 // lnum is inside this fold |
7 | 1167 *fpp = fp + i; |
1168 return TRUE; | |
1169 } | |
1170 } | |
1171 *fpp = fp + low; | |
1172 return FALSE; | |
1173 } | |
1174 | |
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1175 // foldLevelWin() {{{2 |
7 | 1176 /* |
1177 * Return fold level at line number "lnum" in window "wp". | |
1178 */ | |
1179 static int | |
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1180 foldLevelWin(win_T *wp, linenr_T lnum) |
7 | 1181 { |
1182 fold_T *fp; | |
1183 linenr_T lnum_rel = lnum; | |
1184 int level = 0; | |
1185 garray_T *gap; | |
1186 | |
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1187 // Recursively search for a fold that contains "lnum". |
7 | 1188 gap = &wp->w_folds; |
1189 for (;;) | |
1190 { | |
1191 if (!foldFind(gap, lnum_rel, &fp)) | |
1192 break; | |
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1193 // Check nested folds. Line number is relative to containing fold. |
7 | 1194 gap = &fp->fd_nested; |
1195 lnum_rel -= fp->fd_top; | |
1196 ++level; | |
1197 } | |
1198 | |
1199 return level; | |
1200 } | |
1201 | |
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1202 // checkupdate() {{{2 |
7 | 1203 /* |
1204 * Check if the folds in window "wp" are invalid and update them if needed. | |
1205 */ | |
1206 static void | |
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1207 checkupdate(win_T *wp) |
7 | 1208 { |
1209 if (wp->w_foldinvalid) | |
1210 { | |
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1211 foldUpdate(wp, (linenr_T)1, (linenr_T)MAXLNUM); // will update all |
7 | 1212 wp->w_foldinvalid = FALSE; |
1213 } | |
1214 } | |
1215 | |
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1216 // setFoldRepeat() {{{2 |
7 | 1217 /* |
1218 * Open or close fold for current window at line "lnum". | |
1219 * Repeat "count" times. | |
1220 */ | |
1221 static void | |
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1222 setFoldRepeat(linenr_T lnum, long count, int do_open) |
7 | 1223 { |
1224 int done; | |
1225 long n; | |
1226 | |
1227 for (n = 0; n < count; ++n) | |
1228 { | |
1229 done = DONE_NOTHING; | |
1757 | 1230 (void)setManualFold(lnum, do_open, FALSE, &done); |
7 | 1231 if (!(done & DONE_ACTION)) |
1232 { | |
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1233 // Only give an error message when no fold could be opened. |
7 | 1234 if (n == 0 && !(done & DONE_FOLD)) |
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1235 emsg(_(e_nofold)); |
7 | 1236 break; |
1237 } | |
1238 } | |
1239 } | |
1240 | |
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1241 // setManualFold() {{{2 |
7 | 1242 /* |
1243 * Open or close the fold in the current window which contains "lnum". | |
1244 * Also does this for other windows in diff mode when needed. | |
1245 */ | |
1246 static linenr_T | |
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1247 setManualFold( |
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1248 linenr_T lnum, |
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1249 int opening, // TRUE when opening, FALSE when closing |
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1250 int recurse, // TRUE when closing/opening recursive |
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1251 int *donep) |
7 | 1252 { |
1253 #ifdef FEAT_DIFF | |
1254 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
1255 { | |
1256 win_T *wp; | |
1257 linenr_T dlnum; | |
1258 | |
1259 /* | |
1260 * Do the same operation in other windows in diff mode. Calculate the | |
1261 * line number from the diffs. | |
1262 */ | |
1263 FOR_ALL_WINDOWS(wp) | |
1264 { | |
1265 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
1266 { | |
1267 dlnum = diff_lnum_win(curwin->w_cursor.lnum, wp); | |
1268 if (dlnum != 0) | |
1269 (void)setManualFoldWin(wp, dlnum, opening, recurse, NULL); | |
1270 } | |
1271 } | |
1272 } | |
1273 #endif | |
1274 | |
1275 return setManualFoldWin(curwin, lnum, opening, recurse, donep); | |
1276 } | |
1277 | |
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1278 // setManualFoldWin() {{{2 |
7 | 1279 /* |
1280 * Open or close the fold in window "wp" which contains "lnum". | |
1281 * "donep", when not NULL, points to flag that is set to DONE_FOLD when some | |
1282 * fold was found and to DONE_ACTION when some fold was opened or closed. | |
1283 * When "donep" is NULL give an error message when no fold was found for | |
1284 * "lnum", but only if "wp" is "curwin". | |
1285 * Return the line number of the next line that could be closed. | |
1286 * It's only valid when "opening" is TRUE! | |
1287 */ | |
1288 static linenr_T | |
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1289 setManualFoldWin( |
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1290 win_T *wp, |
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1291 linenr_T lnum, |
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1292 int opening, // TRUE when opening, FALSE when closing |
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1293 int recurse, // TRUE when closing/opening recursive |
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1294 int *donep) |
7 | 1295 { |
1296 fold_T *fp; | |
1297 fold_T *fp2; | |
1298 fold_T *found = NULL; | |
1299 int j; | |
1300 int level = 0; | |
1301 int use_level = FALSE; | |
1302 int found_fold = FALSE; | |
1303 garray_T *gap; | |
1304 linenr_T next = MAXLNUM; | |
1305 linenr_T off = 0; | |
1306 int done = 0; | |
1307 | |
1308 checkupdate(wp); | |
1309 | |
1310 /* | |
1311 * Find the fold, open or close it. | |
1312 */ | |
1313 gap = &wp->w_folds; | |
1314 for (;;) | |
1315 { | |
1316 if (!foldFind(gap, lnum, &fp)) | |
1317 { | |
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1318 // If there is a following fold, continue there next time. |
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1319 if (fp != NULL && fp < (fold_T *)gap->ga_data + gap->ga_len) |
7 | 1320 next = fp->fd_top + off; |
1321 break; | |
1322 } | |
1323 | |
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1324 // lnum is inside this fold |
7 | 1325 found_fold = TRUE; |
1326 | |
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1327 // If there is a following fold, continue there next time. |
7 | 1328 if (fp + 1 < (fold_T *)gap->ga_data + gap->ga_len) |
1329 next = fp[1].fd_top + off; | |
1330 | |
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1331 // Change from level-dependent folding to manual. |
7 | 1332 if (use_level || fp->fd_flags == FD_LEVEL) |
1333 { | |
1334 use_level = TRUE; | |
1335 if (level >= wp->w_p_fdl) | |
1336 fp->fd_flags = FD_CLOSED; | |
1337 else | |
1338 fp->fd_flags = FD_OPEN; | |
1339 fp2 = (fold_T *)fp->fd_nested.ga_data; | |
1340 for (j = 0; j < fp->fd_nested.ga_len; ++j) | |
1341 fp2[j].fd_flags = FD_LEVEL; | |
1342 } | |
1343 | |
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1344 // Simple case: Close recursively means closing the fold. |
7 | 1345 if (!opening && recurse) |
1346 { | |
1347 if (fp->fd_flags != FD_CLOSED) | |
1348 { | |
1349 done |= DONE_ACTION; | |
1350 fp->fd_flags = FD_CLOSED; | |
1351 } | |
1352 } | |
1353 else if (fp->fd_flags == FD_CLOSED) | |
1354 { | |
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1355 // When opening, open topmost closed fold. |
7 | 1356 if (opening) |
1357 { | |
1358 fp->fd_flags = FD_OPEN; | |
1359 done |= DONE_ACTION; | |
1360 if (recurse) | |
1361 foldOpenNested(fp); | |
1362 } | |
1363 break; | |
1364 } | |
1365 | |
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1366 // fold is open, check nested folds |
7 | 1367 found = fp; |
1368 gap = &fp->fd_nested; | |
1369 lnum -= fp->fd_top; | |
1370 off += fp->fd_top; | |
1371 ++level; | |
1372 } | |
1373 if (found_fold) | |
1374 { | |
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1375 // When closing and not recurse, close deepest open fold. |
7 | 1376 if (!opening && found != NULL) |
1377 { | |
1378 found->fd_flags = FD_CLOSED; | |
1379 done |= DONE_ACTION; | |
1380 } | |
1381 wp->w_fold_manual = TRUE; | |
1382 if (done & DONE_ACTION) | |
1383 changed_window_setting_win(wp); | |
1384 done |= DONE_FOLD; | |
1385 } | |
1386 else if (donep == NULL && wp == curwin) | |
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1387 emsg(_(e_nofold)); |
7 | 1388 |
1389 if (donep != NULL) | |
1390 *donep |= done; | |
1391 | |
1392 return next; | |
1393 } | |
1394 | |
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1395 // foldOpenNested() {{{2 |
7 | 1396 /* |
1397 * Open all nested folds in fold "fpr" recursively. | |
1398 */ | |
1399 static void | |
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1400 foldOpenNested(fold_T *fpr) |
7 | 1401 { |
1402 int i; | |
1403 fold_T *fp; | |
1404 | |
1405 fp = (fold_T *)fpr->fd_nested.ga_data; | |
1406 for (i = 0; i < fpr->fd_nested.ga_len; ++i) | |
1407 { | |
1408 foldOpenNested(&fp[i]); | |
1409 fp[i].fd_flags = FD_OPEN; | |
1410 } | |
1411 } | |
1412 | |
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1413 // deleteFoldEntry() {{{2 |
7 | 1414 /* |
1415 * Delete fold "idx" from growarray "gap". | |
1416 * When "recursive" is TRUE also delete all the folds contained in it. | |
1417 * When "recursive" is FALSE contained folds are moved one level up. | |
1418 */ | |
1419 static void | |
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1420 deleteFoldEntry(garray_T *gap, int idx, int recursive) |
7 | 1421 { |
1422 fold_T *fp; | |
1423 int i; | |
1424 long moved; | |
1425 fold_T *nfp; | |
1426 | |
1427 fp = (fold_T *)gap->ga_data + idx; | |
1428 if (recursive || fp->fd_nested.ga_len == 0) | |
1429 { | |
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1430 // recursively delete the contained folds |
7 | 1431 deleteFoldRecurse(&fp->fd_nested); |
1432 --gap->ga_len; | |
1433 if (idx < gap->ga_len) | |
1434 mch_memmove(fp, fp + 1, sizeof(fold_T) * (gap->ga_len - idx)); | |
1435 } | |
1436 else | |
1437 { | |
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1438 // Move nested folds one level up, to overwrite the fold that is |
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1439 // deleted. |
7 | 1440 moved = fp->fd_nested.ga_len; |
1441 if (ga_grow(gap, (int)(moved - 1)) == OK) | |
1442 { | |
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1443 // Get "fp" again, the array may have been reallocated. |
3028 | 1444 fp = (fold_T *)gap->ga_data + idx; |
1445 | |
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1446 // adjust fd_top and fd_flags for the moved folds |
7 | 1447 nfp = (fold_T *)fp->fd_nested.ga_data; |
1448 for (i = 0; i < moved; ++i) | |
1449 { | |
1450 nfp[i].fd_top += fp->fd_top; | |
1451 if (fp->fd_flags == FD_LEVEL) | |
1452 nfp[i].fd_flags = FD_LEVEL; | |
1453 if (fp->fd_small == MAYBE) | |
1454 nfp[i].fd_small = MAYBE; | |
1455 } | |
1456 | |
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1457 // move the existing folds down to make room |
3028 | 1458 if (idx + 1 < gap->ga_len) |
7 | 1459 mch_memmove(fp + moved, fp + 1, |
3028 | 1460 sizeof(fold_T) * (gap->ga_len - (idx + 1))); |
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1461 // move the contained folds one level up |
7 | 1462 mch_memmove(fp, nfp, (size_t)(sizeof(fold_T) * moved)); |
1463 vim_free(nfp); | |
1464 gap->ga_len += moved - 1; | |
1465 } | |
1466 } | |
1467 } | |
1468 | |
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1469 // deleteFoldRecurse() {{{2 |
7 | 1470 /* |
1471 * Delete nested folds in a fold. | |
1472 */ | |
1473 void | |
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1474 deleteFoldRecurse(garray_T *gap) |
7 | 1475 { |
1476 int i; | |
1477 | |
1478 for (i = 0; i < gap->ga_len; ++i) | |
1479 deleteFoldRecurse(&(((fold_T *)(gap->ga_data))[i].fd_nested)); | |
1480 ga_clear(gap); | |
1481 } | |
1482 | |
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1483 // foldMarkAdjust() {{{2 |
7 | 1484 /* |
1485 * Update line numbers of folds for inserted/deleted lines. | |
1486 */ | |
1487 void | |
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1488 foldMarkAdjust( |
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1490 linenr_T line1, |
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1492 long amount, |
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1493 long amount_after) |
7 | 1494 { |
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1495 // If deleting marks from line1 to line2, but not deleting all those |
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1496 // lines, set line2 so that only deleted lines have their folds removed. |
7 | 1497 if (amount == MAXLNUM && line2 >= line1 && line2 - line1 >= -amount_after) |
1498 line2 = line1 - amount_after - 1; | |
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1499 // If appending a line in Insert mode, it should be included in the fold |
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|
1500 // just above the line. |
7 | 1501 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) |
1502 --line1; | |
1503 foldMarkAdjustRecurse(&wp->w_folds, line1, line2, amount, amount_after); | |
1504 } | |
1505 | |
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1506 // foldMarkAdjustRecurse() {{{2 |
7 | 1507 static void |
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1508 foldMarkAdjustRecurse( |
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1509 garray_T *gap, |
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1510 linenr_T line1, |
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1511 linenr_T line2, |
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|
1512 long amount, |
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|
1513 long amount_after) |
7 | 1514 { |
1515 fold_T *fp; | |
1516 int i; | |
1517 linenr_T last; | |
1518 linenr_T top; | |
1519 | |
22009
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|
1520 if (gap->ga_len == 0) |
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|
1521 return; |
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|
1522 |
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1523 // In Insert mode an inserted line at the top of a fold is considered part |
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|
1524 // of the fold, otherwise it isn't. |
7 | 1525 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) |
1526 top = line1 + 1; | |
1527 else | |
1528 top = line1; | |
1529 | |
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|
1530 // Find the fold containing or just below "line1". |
7 | 1531 (void)foldFind(gap, line1, &fp); |
1532 | |
1533 /* | |
1534 * Adjust all folds below "line1" that are affected. | |
1535 */ | |
1536 for (i = (int)(fp - (fold_T *)gap->ga_data); i < gap->ga_len; ++i, ++fp) | |
1537 { | |
1538 /* | |
1539 * Check for these situations: | |
1540 * 1 2 3 | |
1541 * 1 2 3 | |
1542 * line1 2 3 4 5 | |
1543 * 2 3 4 5 | |
1544 * 2 3 4 5 | |
1545 * line2 2 3 4 5 | |
1546 * 3 5 6 | |
1547 * 3 5 6 | |
1548 */ | |
1549 | |
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1550 last = fp->fd_top + fp->fd_len - 1; // last line of fold |
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1551 |
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1552 // 1. fold completely above line1: nothing to do |
7 | 1553 if (last < line1) |
1554 continue; | |
1555 | |
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1556 // 6. fold below line2: only adjust for amount_after |
7 | 1557 if (fp->fd_top > line2) |
1558 { | |
1559 if (amount_after == 0) | |
1560 break; | |
1561 fp->fd_top += amount_after; | |
1562 } | |
1563 else | |
1564 { | |
1565 if (fp->fd_top >= top && last <= line2) | |
1566 { | |
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1567 // 4. fold completely contained in range |
7 | 1568 if (amount == MAXLNUM) |
1569 { | |
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1570 // Deleting lines: delete the fold completely |
7 | 1571 deleteFoldEntry(gap, i, TRUE); |
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1572 --i; // adjust index for deletion |
7 | 1573 --fp; |
1574 } | |
1575 else | |
1576 fp->fd_top += amount; | |
1577 } | |
1578 else | |
1579 { | |
1580 if (fp->fd_top < top) | |
1581 { | |
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1582 // 2 or 3: need to correct nested folds too |
1964 | 1583 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, |
1584 line2 - fp->fd_top, amount, amount_after); | |
7 | 1585 if (last <= line2) |
1586 { | |
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1587 // 2. fold contains line1, line2 is below fold |
7 | 1588 if (amount == MAXLNUM) |
1589 fp->fd_len = line1 - fp->fd_top; | |
1590 else | |
1591 fp->fd_len += amount; | |
1592 } | |
1593 else | |
1594 { | |
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1595 // 3. fold contains line1 and line2 |
7 | 1596 fp->fd_len += amount_after; |
1597 } | |
1598 } | |
1599 else | |
1600 { | |
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1601 // 5. fold is below line1 and contains line2; need to |
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1602 // correct nested folds too |
7 | 1603 if (amount == MAXLNUM) |
1604 { | |
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1605 foldMarkAdjustRecurse(&fp->fd_nested, |
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1606 line1 - fp->fd_top, |
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1607 line2 - fp->fd_top, |
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1608 amount, |
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1609 amount_after + (fp->fd_top - top)); |
7 | 1610 fp->fd_len -= line2 - fp->fd_top + 1; |
1611 fp->fd_top = line1; | |
1612 } | |
1613 else | |
1614 { | |
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1615 foldMarkAdjustRecurse(&fp->fd_nested, |
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1616 line1 - fp->fd_top, |
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1617 line2 - fp->fd_top, |
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1618 amount, |
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1619 amount_after - amount); |
7 | 1620 fp->fd_len += amount_after - amount; |
1621 fp->fd_top += amount; | |
1622 } | |
1623 } | |
1624 } | |
1625 } | |
1626 } | |
1627 } | |
1628 | |
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|
1629 // getDeepestNesting() {{{2 |
7 | 1630 /* |
1631 * Get the lowest 'foldlevel' value that makes the deepest nested fold in the | |
1632 * current window open. | |
1633 */ | |
1634 int | |
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|
1635 getDeepestNesting(void) |
7 | 1636 { |
1637 checkupdate(curwin); | |
1638 return getDeepestNestingRecurse(&curwin->w_folds); | |
1639 } | |
1640 | |
1641 static int | |
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|
1642 getDeepestNestingRecurse(garray_T *gap) |
7 | 1643 { |
1644 int i; | |
1645 int level; | |
1646 int maxlevel = 0; | |
1647 fold_T *fp; | |
1648 | |
1649 fp = (fold_T *)gap->ga_data; | |
1650 for (i = 0; i < gap->ga_len; ++i) | |
1651 { | |
1652 level = getDeepestNestingRecurse(&fp[i].fd_nested) + 1; | |
1653 if (level > maxlevel) | |
1654 maxlevel = level; | |
1655 } | |
1656 | |
1657 return maxlevel; | |
1658 } | |
1659 | |
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1660 // check_closed() {{{2 |
7 | 1661 /* |
1662 * Check if a fold is closed and update the info needed to check nested folds. | |
1663 */ | |
1664 static int | |
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|
1665 check_closed( |
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|
1666 win_T *win, |
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|
1667 fold_T *fp, |
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1668 int *use_levelp, // TRUE: outer fold had FD_LEVEL |
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|
1669 int level, // folding depth |
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|
1670 int *maybe_smallp, // TRUE: outer this had fd_small == MAYBE |
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|
1671 linenr_T lnum_off) // line number offset for fp->fd_top |
7 | 1672 { |
1673 int closed = FALSE; | |
1674 | |
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|
1675 // Check if this fold is closed. If the flag is FD_LEVEL this |
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changeset
|
1676 // fold and all folds it contains depend on 'foldlevel'. |
7 | 1677 if (*use_levelp || fp->fd_flags == FD_LEVEL) |
1678 { | |
1679 *use_levelp = TRUE; | |
1680 if (level >= win->w_p_fdl) | |
1681 closed = TRUE; | |
1682 } | |
1683 else if (fp->fd_flags == FD_CLOSED) | |
1684 closed = TRUE; | |
1685 | |
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|
1686 // Small fold isn't closed anyway. |
7 | 1687 if (fp->fd_small == MAYBE) |
1688 *maybe_smallp = TRUE; | |
1689 if (closed) | |
1690 { | |
1691 if (*maybe_smallp) | |
1692 fp->fd_small = MAYBE; | |
1693 checkSmall(win, fp, lnum_off); | |
1694 if (fp->fd_small == TRUE) | |
1695 closed = FALSE; | |
1696 } | |
1697 return closed; | |
1698 } | |
1699 | |
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|
1700 // checkSmall() {{{2 |
7 | 1701 /* |
1702 * Update fd_small field of fold "fp". | |
1703 */ | |
1704 static void | |
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|
1705 checkSmall( |
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|
1706 win_T *wp, |
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1707 fold_T *fp, |
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|
1708 linenr_T lnum_off) // offset for fp->fd_top |
7 | 1709 { |
1710 int count; | |
1711 int n; | |
1712 | |
1713 if (fp->fd_small == MAYBE) | |
1714 { | |
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|
1715 // Mark any nested folds to maybe-small |
7 | 1716 setSmallMaybe(&fp->fd_nested); |
1717 | |
1718 if (fp->fd_len > curwin->w_p_fml) | |
1719 fp->fd_small = FALSE; | |
1720 else | |
1721 { | |
1722 count = 0; | |
1723 for (n = 0; n < fp->fd_len; ++n) | |
1724 { | |
1725 count += plines_win_nofold(wp, fp->fd_top + lnum_off + n); | |
1726 if (count > curwin->w_p_fml) | |
1727 { | |
1728 fp->fd_small = FALSE; | |
1729 return; | |
1730 } | |
1731 } | |
1732 fp->fd_small = TRUE; | |
1733 } | |
1734 } | |
1735 } | |
1736 | |
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|
1737 // setSmallMaybe() {{{2 |
7 | 1738 /* |
1739 * Set small flags in "gap" to MAYBE. | |
1740 */ | |
1741 static void | |
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changeset
|
1742 setSmallMaybe(garray_T *gap) |
7 | 1743 { |
1744 int i; | |
1745 fold_T *fp; | |
1746 | |
1747 fp = (fold_T *)gap->ga_data; | |
1748 for (i = 0; i < gap->ga_len; ++i) | |
1749 fp[i].fd_small = MAYBE; | |
1750 } | |
1751 | |
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1752 // foldCreateMarkers() {{{2 |
7 | 1753 /* |
1754 * Create a fold from line "start" to line "end" (inclusive) in the current | |
1755 * window by adding markers. | |
1756 */ | |
1757 static void | |
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changeset
|
1758 foldCreateMarkers(linenr_T start, linenr_T end) |
7 | 1759 { |
1760 if (!curbuf->b_p_ma) | |
1761 { | |
15470
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changeset
|
1762 emsg(_(e_modifiable)); |
7 | 1763 return; |
1764 } | |
1765 parseMarker(curwin); | |
1766 | |
1767 foldAddMarker(start, curwin->w_p_fmr, foldstartmarkerlen); | |
1768 foldAddMarker(end, foldendmarker, foldendmarkerlen); | |
1769 | |
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1770 // Update both changes here, to avoid all folds after the start are |
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|
1771 // changed when the start marker is inserted and the end isn't. |
7 | 1772 changed_lines(start, (colnr_T)0, end, 0L); |
1773 } | |
1774 | |
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|
1775 // foldAddMarker() {{{2 |
7 | 1776 /* |
1777 * Add "marker[markerlen]" in 'commentstring' to line "lnum". | |
1778 */ | |
1779 static void | |
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changeset
|
1780 foldAddMarker(linenr_T lnum, char_u *marker, int markerlen) |
7 | 1781 { |
1782 char_u *cms = curbuf->b_p_cms; | |
1783 char_u *line; | |
1784 int line_len; | |
1785 char_u *newline; | |
1786 char_u *p = (char_u *)strstr((char *)curbuf->b_p_cms, "%s"); | |
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|
1787 int line_is_comment = FALSE; |
7 | 1788 |
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|
1789 // Allocate a new line: old-line + 'cms'-start + marker + 'cms'-end |
7 | 1790 line = ml_get(lnum); |
1791 line_len = (int)STRLEN(line); | |
1792 | |
1793 if (u_save(lnum - 1, lnum + 1) == OK) | |
1794 { | |
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1795 // Check if the line ends with an unclosed comment |
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1796 (void)skip_comment(line, FALSE, FALSE, &line_is_comment); |
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1797 newline = alloc(line_len + markerlen + STRLEN(cms) + 1); |
7 | 1798 if (newline == NULL) |
1799 return; | |
1800 STRCPY(newline, line); | |
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1801 // Append the marker to the end of the line |
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1802 if (p == NULL || line_is_comment) |
419 | 1803 vim_strncpy(newline + line_len, marker, markerlen); |
7 | 1804 else |
1805 { | |
1806 STRCPY(newline + line_len, cms); | |
1807 STRNCPY(newline + line_len + (p - cms), marker, markerlen); | |
1808 STRCPY(newline + line_len + (p - cms) + markerlen, p + 2); | |
1809 } | |
1810 | |
1811 ml_replace(lnum, newline, FALSE); | |
1812 } | |
1813 } | |
1814 | |
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1815 // deleteFoldMarkers() {{{2 |
7 | 1816 /* |
1817 * Delete the markers for a fold, causing it to be deleted. | |
1818 */ | |
1819 static void | |
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1820 deleteFoldMarkers( |
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1821 fold_T *fp, |
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1822 int recursive, |
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1823 linenr_T lnum_off) // offset for fp->fd_top |
7 | 1824 { |
1825 int i; | |
1826 | |
1827 if (recursive) | |
1828 for (i = 0; i < fp->fd_nested.ga_len; ++i) | |
1829 deleteFoldMarkers((fold_T *)fp->fd_nested.ga_data + i, TRUE, | |
1830 lnum_off + fp->fd_top); | |
1831 foldDelMarker(fp->fd_top + lnum_off, curwin->w_p_fmr, foldstartmarkerlen); | |
1832 foldDelMarker(fp->fd_top + lnum_off + fp->fd_len - 1, | |
1833 foldendmarker, foldendmarkerlen); | |
1834 } | |
1835 | |
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1836 // foldDelMarker() {{{2 |
7 | 1837 /* |
1838 * Delete marker "marker[markerlen]" at the end of line "lnum". | |
1839 * Delete 'commentstring' if it matches. | |
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1840 * If the marker is not found, there is no error message. Could be a missing |
7 | 1841 * close-marker. |
1842 */ | |
1843 static void | |
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1844 foldDelMarker(linenr_T lnum, char_u *marker, int markerlen) |
7 | 1845 { |
1846 char_u *line; | |
1847 char_u *newline; | |
1848 char_u *p; | |
1849 int len; | |
1850 char_u *cms = curbuf->b_p_cms; | |
1851 char_u *cms2; | |
1852 | |
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1853 // end marker may be missing and fold extends below the last line |
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1854 if (lnum > curbuf->b_ml.ml_line_count) |
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1855 return; |
7 | 1856 line = ml_get(lnum); |
1857 for (p = line; *p != NUL; ++p) | |
1858 if (STRNCMP(p, marker, markerlen) == 0) | |
1859 { | |
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1860 // Found the marker, include a digit if it's there. |
7 | 1861 len = markerlen; |
1862 if (VIM_ISDIGIT(p[len])) | |
1863 ++len; | |
1864 if (*cms != NUL) | |
1865 { | |
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1866 // Also delete 'commentstring' if it matches. |
7 | 1867 cms2 = (char_u *)strstr((char *)cms, "%s"); |
1868 if (p - line >= cms2 - cms | |
1869 && STRNCMP(p - (cms2 - cms), cms, cms2 - cms) == 0 | |
1870 && STRNCMP(p + len, cms2 + 2, STRLEN(cms2 + 2)) == 0) | |
1871 { | |
1872 p -= cms2 - cms; | |
1873 len += (int)STRLEN(cms) - 2; | |
1874 } | |
1875 } | |
1876 if (u_save(lnum - 1, lnum + 1) == OK) | |
1877 { | |
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1878 // Make new line: text-before-marker + text-after-marker |
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1879 newline = alloc(STRLEN(line) - len + 1); |
7 | 1880 if (newline != NULL) |
1881 { | |
1882 STRNCPY(newline, line, p - line); | |
1883 STRCPY(newline + (p - line), p + len); | |
1884 ml_replace(lnum, newline, FALSE); | |
1885 } | |
1886 } | |
1887 break; | |
1888 } | |
1889 } | |
1890 | |
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1891 // get_foldtext() {{{2 |
29 | 1892 /* |
1893 * Return the text for a closed fold at line "lnum", with last line "lnume". | |
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1894 * When 'foldtext' isn't set puts the result in "buf[FOLD_TEXT_LEN]". |
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1895 * Otherwise the result is in allocated memory. |
29 | 1896 */ |
1897 char_u * | |
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1898 get_foldtext( |
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1899 win_T *wp, |
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1900 linenr_T lnum, |
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1901 linenr_T lnume, |
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1902 foldinfo_T *foldinfo, |
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1903 char_u *buf) |
29 | 1904 { |
1905 char_u *text = NULL; | |
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1906 #ifdef FEAT_EVAL |
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1907 // an error occurred when evaluating 'fdt' setting |
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1908 static int got_fdt_error = FALSE; |
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1909 int save_did_emsg = did_emsg; |
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1910 static win_T *last_wp = NULL; |
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1911 static linenr_T last_lnum = 0; |
29 | 1912 |
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1913 if (last_wp != wp || last_wp == NULL |
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1914 || last_lnum > lnum || last_lnum == 0) |
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1915 // window changed, try evaluating foldtext setting once again |
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1916 got_fdt_error = FALSE; |
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1917 |
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1918 if (!got_fdt_error) |
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1919 // a previous error should not abort evaluating 'foldexpr' |
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1920 did_emsg = FALSE; |
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1921 |
29 | 1922 if (*wp->w_p_fdt != NUL) |
1923 { | |
1981 | 1924 char_u dashes[MAX_LEVEL + 2]; |
29 | 1925 win_T *save_curwin; |
1926 int level; | |
1927 char_u *p; | |
1928 | |
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1929 // Set "v:foldstart" and "v:foldend". |
29 | 1930 set_vim_var_nr(VV_FOLDSTART, lnum); |
1931 set_vim_var_nr(VV_FOLDEND, lnume); | |
1932 | |
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1933 // Set "v:folddashes" to a string of "level" dashes. |
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1934 // Set "v:foldlevel" to "level". |
29 | 1935 level = foldinfo->fi_level; |
1981 | 1936 if (level > (int)sizeof(dashes) - 1) |
1937 level = (int)sizeof(dashes) - 1; | |
29 | 1938 vim_memset(dashes, '-', (size_t)level); |
1939 dashes[level] = NUL; | |
1940 set_vim_var_string(VV_FOLDDASHES, dashes, -1); | |
1941 set_vim_var_nr(VV_FOLDLEVEL, (long)level); | |
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1942 |
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1943 // skip evaluating foldtext on errors |
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1944 if (!got_fdt_error) |
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1945 { |
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1946 save_curwin = curwin; |
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1947 curwin = wp; |
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1948 curbuf = wp->w_buffer; |
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1949 |
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1950 ++emsg_silent; // handle exceptions, but don't display errors |
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1951 text = eval_to_string_safe(wp->w_p_fdt, |
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1952 was_set_insecurely((char_u *)"foldtext", OPT_LOCAL)); |
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1953 --emsg_silent; |
29 | 1954 |
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1955 if (text == NULL || did_emsg) |
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1956 got_fdt_error = TRUE; |
29 | 1957 |
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1958 curwin = save_curwin; |
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1959 curbuf = curwin->w_buffer; |
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1960 } |
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1961 last_lnum = lnum; |
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1962 last_wp = wp; |
29 | 1963 set_vim_var_string(VV_FOLDDASHES, NULL, -1); |
1964 | |
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1965 if (!did_emsg && save_did_emsg) |
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1966 did_emsg = save_did_emsg; |
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1967 |
29 | 1968 if (text != NULL) |
1969 { | |
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1970 // Replace unprintable characters, if there are any. But |
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1971 // replace a TAB with a space. |
29 | 1972 for (p = text; *p != NUL; ++p) |
1973 { | |
33 | 1974 int len; |
1975 | |
474 | 1976 if (has_mbyte && (len = (*mb_ptr2len)(p)) > 1) |
29 | 1977 { |
1978 if (!vim_isprintc((*mb_ptr2char)(p))) | |
1979 break; | |
1980 p += len - 1; | |
1981 } | |
1982 else | |
1983 if (*p == TAB) | |
1984 *p = ' '; | |
1985 else if (ptr2cells(p) > 1) | |
1986 break; | |
1987 } | |
1988 if (*p != NUL) | |
1989 { | |
1990 p = transstr(text); | |
1991 vim_free(text); | |
1992 text = p; | |
1993 } | |
1994 } | |
1995 } | |
1996 if (text == NULL) | |
1997 #endif | |
1998 { | |
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1999 long count = (long)(lnume - lnum + 1); |
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2000 |
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2001 vim_snprintf((char *)buf, FOLD_TEXT_LEN, |
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2002 NGETTEXT("+--%3ld line folded ", |
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2003 "+--%3ld lines folded ", count), |
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2004 count); |
29 | 2005 text = buf; |
2006 } | |
2007 return text; | |
2008 } | |
2009 | |
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2010 // foldtext_cleanup() {{{2 |
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2011 #ifdef FEAT_EVAL |
7 | 2012 /* |
2013 * Remove 'foldmarker' and 'commentstring' from "str" (in-place). | |
2014 */ | |
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2015 static void |
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2016 foldtext_cleanup(char_u *str) |
7 | 2017 { |
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2018 char_u *cms_start; // first part or the whole comment |
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2019 int cms_slen = 0; // length of cms_start |
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2020 char_u *cms_end; // last part of the comment or NULL |
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2021 int cms_elen = 0; // length of cms_end |
7 | 2022 char_u *s; |
45 | 2023 char_u *p; |
7 | 2024 int len; |
2025 int did1 = FALSE; | |
2026 int did2 = FALSE; | |
2027 | |
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2028 // Ignore leading and trailing white space in 'commentstring'. |
7 | 2029 cms_start = skipwhite(curbuf->b_p_cms); |
835 | 2030 cms_slen = (int)STRLEN(cms_start); |
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2031 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
7 | 2032 --cms_slen; |
2033 | |
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2034 // locate "%s" in 'commentstring', use the part before and after it. |
7 | 2035 cms_end = (char_u *)strstr((char *)cms_start, "%s"); |
2036 if (cms_end != NULL) | |
2037 { | |
835 | 2038 cms_elen = cms_slen - (int)(cms_end - cms_start); |
2039 cms_slen = (int)(cms_end - cms_start); | |
7 | 2040 |
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2041 // exclude white space before "%s" |
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2042 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
7 | 2043 --cms_slen; |
2044 | |
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2045 // skip "%s" and white space after it |
7 | 2046 s = skipwhite(cms_end + 2); |
835 | 2047 cms_elen -= (int)(s - cms_end); |
7 | 2048 cms_end = s; |
2049 } | |
2050 parseMarker(curwin); | |
2051 | |
2052 for (s = str; *s != NUL; ) | |
2053 { | |
2054 len = 0; | |
2055 if (STRNCMP(s, curwin->w_p_fmr, foldstartmarkerlen) == 0) | |
45 | 2056 len = foldstartmarkerlen; |
2057 else if (STRNCMP(s, foldendmarker, foldendmarkerlen) == 0) | |
2058 len = foldendmarkerlen; | |
2059 if (len > 0) | |
7 | 2060 { |
2061 if (VIM_ISDIGIT(s[len])) | |
2062 ++len; | |
45 | 2063 |
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2064 // May remove 'commentstring' start. Useful when it's a double |
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2065 // quote and we already removed a double quote. |
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2066 for (p = s; p > str && VIM_ISWHITE(p[-1]); --p) |
45 | 2067 ; |
2068 if (p >= str + cms_slen | |
2069 && STRNCMP(p - cms_slen, cms_start, cms_slen) == 0) | |
2070 { | |
835 | 2071 len += (int)(s - p) + cms_slen; |
45 | 2072 s = p - cms_slen; |
2073 } | |
7 | 2074 } |
2075 else if (cms_end != NULL) | |
2076 { | |
45 | 2077 if (!did1 && cms_slen > 0 && STRNCMP(s, cms_start, cms_slen) == 0) |
7 | 2078 { |
2079 len = cms_slen; | |
2080 did1 = TRUE; | |
2081 } | |
45 | 2082 else if (!did2 && cms_elen > 0 |
2083 && STRNCMP(s, cms_end, cms_elen) == 0) | |
7 | 2084 { |
2085 len = cms_elen; | |
2086 did2 = TRUE; | |
2087 } | |
2088 } | |
2089 if (len != 0) | |
2090 { | |
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2091 while (VIM_ISWHITE(s[len])) |
7 | 2092 ++len; |
1624 | 2093 STRMOVE(s, s + len); |
7 | 2094 } |
2095 else | |
2096 { | |
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2097 MB_PTR_ADV(s); |
7 | 2098 } |
2099 } | |
2100 } | |
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2101 #endif |
7 | 2102 |
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2103 // Folding by indent, expr, marker and syntax. {{{1 |
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2104 // Define "fline_T", passed to get fold level for a line. {{{2 |
7 | 2105 typedef struct |
2106 { | |
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2107 win_T *wp; // window |
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2108 linenr_T lnum; // current line number |
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2109 linenr_T off; // offset between lnum and real line number |
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2110 linenr_T lnum_save; // line nr used by foldUpdateIEMSRecurse() |
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2111 int lvl; // current level (-1 for undefined) |
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2112 int lvl_next; // level used for next line |
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2113 int start; // number of folds that are forced to start at |
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2114 // this line. |
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2115 int end; // level of fold that is forced to end below |
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2116 // this line |
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2117 int had_end; // level of fold that is forced to end above |
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2118 // this line (copy of "end" of prev. line) |
7 | 2119 } fline_T; |
2120 | |
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2121 // Flag is set when redrawing is needed. |
7 | 2122 static int fold_changed; |
2123 | |
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2124 // Function declarations. {{{2 |
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2125 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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2126 static int foldInsert(garray_T *gap, int i); |
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2127 static void foldSplit(garray_T *gap, int i, linenr_T top, linenr_T bot); |
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2128 static void foldRemove(garray_T *gap, linenr_T top, linenr_T bot); |
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2129 static void foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2); |
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2130 static void foldlevelIndent(fline_T *flp); |
7 | 2131 #ifdef FEAT_DIFF |
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2132 static void foldlevelDiff(fline_T *flp); |
7 | 2133 #endif |
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2134 static void foldlevelExpr(fline_T *flp); |
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2135 static void foldlevelMarker(fline_T *flp); |
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2136 static void foldlevelSyntax(fline_T *flp); |
7 | 2137 |
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2138 // foldUpdateIEMS() {{{2 |
7 | 2139 /* |
2140 * Update the folding for window "wp", at least from lines "top" to "bot". | |
2141 * Return TRUE if any folds did change. | |
2142 */ | |
2143 static void | |
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2144 foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot) |
7 | 2145 { |
2146 linenr_T start; | |
2147 linenr_T end; | |
2148 fline_T fline; | |
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2149 void (*getlevel)(fline_T *); |
7 | 2150 int level; |
2151 fold_T *fp; | |
2152 | |
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2153 // Avoid problems when being called recursively. |
7 | 2154 if (invalid_top != (linenr_T)0) |
2155 return; | |
2156 | |
2157 if (wp->w_foldinvalid) | |
2158 { | |
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2159 // Need to update all folds. |
7 | 2160 top = 1; |
2161 bot = wp->w_buffer->b_ml.ml_line_count; | |
2162 wp->w_foldinvalid = FALSE; | |
2163 | |
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2164 // Mark all folds a maybe-small. |
7 | 2165 setSmallMaybe(&wp->w_folds); |
2166 } | |
2167 | |
2168 #ifdef FEAT_DIFF | |
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2169 // add the context for "diff" folding |
7 | 2170 if (foldmethodIsDiff(wp)) |
2171 { | |
2172 if (top > diff_context) | |
2173 top -= diff_context; | |
2174 else | |
2175 top = 1; | |
2176 bot += diff_context; | |
2177 } | |
2178 #endif | |
2179 | |
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2180 // When deleting lines at the end of the buffer "top" can be past the end |
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2181 // of the buffer. |
7 | 2182 if (top > wp->w_buffer->b_ml.ml_line_count) |
2183 top = wp->w_buffer->b_ml.ml_line_count; | |
2184 | |
2185 fold_changed = FALSE; | |
2186 fline.wp = wp; | |
2187 fline.off = 0; | |
2188 fline.lvl = 0; | |
2189 fline.lvl_next = -1; | |
2190 fline.start = 0; | |
2191 fline.end = MAX_LEVEL + 1; | |
2192 fline.had_end = MAX_LEVEL + 1; | |
2193 | |
2194 invalid_top = top; | |
2195 invalid_bot = bot; | |
2196 | |
2197 if (foldmethodIsMarker(wp)) | |
2198 { | |
2199 getlevel = foldlevelMarker; | |
2200 | |
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2201 // Init marker variables to speed up foldlevelMarker(). |
7 | 2202 parseMarker(wp); |
2203 | |
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2204 // Need to get the level of the line above top, it is used if there is |
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2205 // no marker at the top. |
7 | 2206 if (top > 1) |
2207 { | |
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2208 // Get the fold level at top - 1. |
7 | 2209 level = foldLevelWin(wp, top - 1); |
2210 | |
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2211 // The fold may end just above the top, check for that. |
7 | 2212 fline.lnum = top - 1; |
2213 fline.lvl = level; | |
2214 getlevel(&fline); | |
2215 | |
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2216 // If a fold started here, we already had the level, if it stops |
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2217 // here, we need to use lvl_next. Could also start and end a fold |
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2218 // in the same line. |
7 | 2219 if (fline.lvl > level) |
2220 fline.lvl = level - (fline.lvl - fline.lvl_next); | |
2221 else | |
2222 fline.lvl = fline.lvl_next; | |
2223 } | |
2224 fline.lnum = top; | |
2225 getlevel(&fline); | |
2226 } | |
2227 else | |
2228 { | |
2229 fline.lnum = top; | |
2230 if (foldmethodIsExpr(wp)) | |
2231 { | |
2232 getlevel = foldlevelExpr; | |
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2233 // start one line back, because a "<1" may indicate the end of a |
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2234 // fold in the topline |
7 | 2235 if (top > 1) |
2236 --fline.lnum; | |
2237 } | |
2238 else if (foldmethodIsSyntax(wp)) | |
2239 getlevel = foldlevelSyntax; | |
2240 #ifdef FEAT_DIFF | |
2241 else if (foldmethodIsDiff(wp)) | |
2242 getlevel = foldlevelDiff; | |
2243 #endif | |
2244 else | |
2245 getlevel = foldlevelIndent; | |
2246 | |
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2247 // Backup to a line for which the fold level is defined. Since it's |
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2248 // always defined for line one, we will stop there. |
7 | 2249 fline.lvl = -1; |
2250 for ( ; !got_int; --fline.lnum) | |
2251 { | |
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2252 // Reset lvl_next each time, because it will be set to a value for |
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2253 // the next line, but we search backwards here. |
7 | 2254 fline.lvl_next = -1; |
2255 getlevel(&fline); | |
2256 if (fline.lvl >= 0) | |
2257 break; | |
2258 } | |
2259 } | |
2260 | |
1977 | 2261 /* |
2262 * If folding is defined by the syntax, it is possible that a change in | |
2263 * one line will cause all sub-folds of the current fold to change (e.g., | |
2264 * closing a C-style comment can cause folds in the subsequent lines to | |
2265 * appear). To take that into account we should adjust the value of "bot" | |
2266 * to point to the end of the current fold: | |
2267 */ | |
2268 if (foldlevelSyntax == getlevel) | |
2269 { | |
2270 garray_T *gap = &wp->w_folds; | |
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2271 fold_T *fpn = NULL; |
1977 | 2272 int current_fdl = 0; |
2273 linenr_T fold_start_lnum = 0; | |
2274 linenr_T lnum_rel = fline.lnum; | |
2275 | |
2276 while (current_fdl < fline.lvl) | |
2277 { | |
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2278 if (!foldFind(gap, lnum_rel, &fpn)) |
1977 | 2279 break; |
2280 ++current_fdl; | |
2281 | |
2271
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|
2282 fold_start_lnum += fpn->fd_top; |
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changeset
|
2283 gap = &fpn->fd_nested; |
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diff
changeset
|
2284 lnum_rel -= fpn->fd_top; |
1977 | 2285 } |
2271
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diff
changeset
|
2286 if (fpn != NULL && current_fdl == fline.lvl) |
1977 | 2287 { |
2271
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diff
changeset
|
2288 linenr_T fold_end_lnum = fold_start_lnum + fpn->fd_len; |
1977 | 2289 |
2290 if (fold_end_lnum > bot) | |
2291 bot = fold_end_lnum; | |
2292 } | |
2293 } | |
2294 | |
7 | 2295 start = fline.lnum; |
2296 end = bot; | |
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changeset
|
2297 // Do at least one line. |
7 | 2298 if (start > end && end < wp->w_buffer->b_ml.ml_line_count) |
2299 end = start; | |
2300 while (!got_int) | |
2301 { | |
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|
2302 // Always stop at the end of the file ("end" can be past the end of |
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changeset
|
2303 // the file). |
7 | 2304 if (fline.lnum > wp->w_buffer->b_ml.ml_line_count) |
2305 break; | |
2306 if (fline.lnum > end) | |
2307 { | |
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changeset
|
2308 // For "marker", "expr" and "syntax" methods: If a change caused |
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changeset
|
2309 // a fold to be removed, we need to continue at least until where |
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|
2310 // it ended. |
7 | 2311 if (getlevel != foldlevelMarker |
2312 && getlevel != foldlevelSyntax | |
2313 && getlevel != foldlevelExpr) | |
2314 break; | |
2315 if ((start <= end | |
2316 && foldFind(&wp->w_folds, end, &fp) | |
2317 && fp->fd_top + fp->fd_len - 1 > end) | |
2318 || (fline.lvl == 0 | |
2319 && foldFind(&wp->w_folds, fline.lnum, &fp) | |
2320 && fp->fd_top < fline.lnum)) | |
2321 end = fp->fd_top + fp->fd_len - 1; | |
2322 else if (getlevel == foldlevelSyntax | |
2323 && foldLevelWin(wp, fline.lnum) != fline.lvl) | |
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|
2324 // For "syntax" method: Compare the foldlevel that the syntax |
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changeset
|
2325 // tells us to the foldlevel from the existing folds. If they |
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changeset
|
2326 // don't match continue updating folds. |
7 | 2327 end = fline.lnum; |
2328 else | |
2329 break; | |
2330 } | |
2331 | |
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changeset
|
2332 // A level 1 fold starts at a line with foldlevel > 0. |
7 | 2333 if (fline.lvl > 0) |
2334 { | |
2335 invalid_top = fline.lnum; | |
2336 invalid_bot = end; | |
2337 end = foldUpdateIEMSRecurse(&wp->w_folds, | |
2338 1, start, &fline, getlevel, end, FD_LEVEL); | |
2339 start = fline.lnum; | |
2340 } | |
2341 else | |
2342 { | |
2343 if (fline.lnum == wp->w_buffer->b_ml.ml_line_count) | |
2344 break; | |
2345 ++fline.lnum; | |
2346 fline.lvl = fline.lvl_next; | |
2347 getlevel(&fline); | |
2348 } | |
2349 } | |
2350 | |
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changeset
|
2351 // There can't be any folds from start until end now. |
7 | 2352 foldRemove(&wp->w_folds, start, end); |
2353 | |
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changeset
|
2354 // If some fold changed, need to redraw and position cursor. |
7 | 2355 if (fold_changed && wp->w_p_fen) |
1554 | 2356 changed_window_setting_win(wp); |
7 | 2357 |
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changeset
|
2358 // If we updated folds past "bot", need to redraw more lines. Don't do |
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|
2359 // this in other situations, the changed lines will be redrawn anyway and |
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changeset
|
2360 // this method can cause the whole window to be updated. |
7 | 2361 if (end != bot) |
2362 { | |
2363 if (wp->w_redraw_top == 0 || wp->w_redraw_top > top) | |
2364 wp->w_redraw_top = top; | |
2365 if (wp->w_redraw_bot < end) | |
2366 wp->w_redraw_bot = end; | |
2367 } | |
2368 | |
2369 invalid_top = (linenr_T)0; | |
2370 } | |
2371 | |
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|
2372 // foldUpdateIEMSRecurse() {{{2 |
7 | 2373 /* |
2374 * Update a fold that starts at "flp->lnum". At this line there is always a | |
2375 * valid foldlevel, and its level >= "level". | |
2376 * "flp" is valid for "flp->lnum" when called and it's valid when returning. | |
2377 * "flp->lnum" is set to the lnum just below the fold, if it ends before | |
2378 * "bot", it's "bot" plus one if the fold continues and it's bigger when using | |
2379 * the marker method and a text change made following folds to change. | |
2380 * When returning, "flp->lnum_save" is the line number that was used to get | |
2381 * the level when the level at "flp->lnum" is invalid. | |
2382 * Remove any folds from "startlnum" up to here at this level. | |
2383 * Recursively update nested folds. | |
2384 * Below line "bot" there are no changes in the text. | |
2385 * "flp->lnum", "flp->lnum_save" and "bot" are relative to the start of the | |
2386 * outer fold. | |
2387 * "flp->off" is the offset to the real line number in the buffer. | |
2388 * | |
2389 * All this would be a lot simpler if all folds in the range would be deleted | |
1698 | 2390 * and then created again. But we would lose all information about the |
7 | 2391 * folds, even when making changes that don't affect the folding (e.g. "vj~"). |
2392 * | |
2393 * Returns bot, which may have been increased for lines that also need to be | |
2394 * updated as a result of a detected change in the fold. | |
2395 */ | |
2396 static linenr_T | |
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diff
changeset
|
2397 foldUpdateIEMSRecurse( |
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diff
changeset
|
2398 garray_T *gap, |
81794242a275
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diff
changeset
|
2399 int level, |
81794242a275
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|
2400 linenr_T startlnum, |
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diff
changeset
|
2401 fline_T *flp, |
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diff
changeset
|
2402 void (*getlevel)(fline_T *), |
81794242a275
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changeset
|
2403 linenr_T bot, |
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|
2404 int topflags) // flags used by containing fold |
7 | 2405 { |
2406 linenr_T ll; | |
2407 fold_T *fp = NULL; | |
2408 fold_T *fp2; | |
2409 int lvl = level; | |
2410 linenr_T startlnum2 = startlnum; | |
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|
2411 linenr_T firstlnum = flp->lnum; // first lnum we got |
7 | 2412 int i; |
2413 int finish = FALSE; | |
2414 linenr_T linecount = flp->wp->w_buffer->b_ml.ml_line_count - flp->off; | |
2415 int concat; | |
2416 | |
2417 /* | |
2418 * If using the marker method, the start line is not the start of a fold | |
2419 * at the level we're dealing with and the level is non-zero, we must use | |
2420 * the previous fold. But ignore a fold that starts at or below | |
2421 * startlnum, it must be deleted. | |
2422 */ | |
2423 if (getlevel == foldlevelMarker && flp->start <= flp->lvl - level | |
2424 && flp->lvl > 0) | |
2425 { | |
7009 | 2426 (void)foldFind(gap, startlnum - 1, &fp); |
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diff
changeset
|
2427 if (fp != NULL && (fp >= ((fold_T *)gap->ga_data) + gap->ga_len |
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diff
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|
2428 || fp->fd_top >= startlnum)) |
7 | 2429 fp = NULL; |
2430 } | |
2431 | |
2432 /* | |
2433 * Loop over all lines in this fold, or until "bot" is hit. | |
2434 * Handle nested folds inside of this fold. | |
2435 * "flp->lnum" is the current line. When finding the end of the fold, it | |
2436 * is just below the end of the fold. | |
2437 * "*flp" contains the level of the line "flp->lnum" or a following one if | |
2438 * there are lines with an invalid fold level. "flp->lnum_save" is the | |
2439 * line number that was used to get the fold level (below "flp->lnum" when | |
2440 * it has an invalid fold level). When called the fold level is always | |
2441 * valid, thus "flp->lnum_save" is equal to "flp->lnum". | |
2442 */ | |
2443 flp->lnum_save = flp->lnum; | |
2444 while (!got_int) | |
2445 { | |
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|
2446 // Updating folds can be slow, check for CTRL-C. |
7 | 2447 line_breakcheck(); |
2448 | |
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|
2449 // Set "lvl" to the level of line "flp->lnum". When flp->start is set |
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|
2450 // and after the first line of the fold, set the level to zero to |
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|
2451 // force the fold to end. Do the same when had_end is set: Previous |
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diff
changeset
|
2452 // line was marked as end of a fold. |
7 | 2453 lvl = flp->lvl; |
2454 if (lvl > MAX_LEVEL) | |
2455 lvl = MAX_LEVEL; | |
2456 if (flp->lnum > firstlnum | |
2457 && (level > lvl - flp->start || level >= flp->had_end)) | |
2458 lvl = 0; | |
2459 | |
2460 if (flp->lnum > bot && !finish && fp != NULL) | |
2461 { | |
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|
2462 // For "marker" and "syntax" methods: |
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|
2463 // - If a change caused a nested fold to be removed, we need to |
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|
2464 // delete it and continue at least until where it ended. |
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|
2465 // - If a change caused a nested fold to be created, or this fold |
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|
2466 // to continue below its original end, need to finish this fold. |
7 | 2467 if (getlevel != foldlevelMarker |
2468 && getlevel != foldlevelExpr | |
2469 && getlevel != foldlevelSyntax) | |
2470 break; | |
2471 i = 0; | |
2472 fp2 = fp; | |
2473 if (lvl >= level) | |
2474 { | |
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|
2475 // Compute how deep the folds currently are, if it's deeper |
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|
2476 // than "lvl" then some must be deleted, need to update |
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|
2477 // at least one nested fold. |
7 | 2478 ll = flp->lnum - fp->fd_top; |
2479 while (foldFind(&fp2->fd_nested, ll, &fp2)) | |
2480 { | |
2481 ++i; | |
2482 ll -= fp2->fd_top; | |
2483 } | |
2484 } | |
2485 if (lvl < level + i) | |
2486 { | |
7009 | 2487 (void)foldFind(&fp->fd_nested, flp->lnum - fp->fd_top, &fp2); |
7 | 2488 if (fp2 != NULL) |
2489 bot = fp2->fd_top + fp2->fd_len - 1 + fp->fd_top; | |
2490 } | |
2491 else if (fp->fd_top + fp->fd_len <= flp->lnum && lvl >= level) | |
2492 finish = TRUE; | |
2493 else | |
2494 break; | |
2495 } | |
2496 | |
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2497 // At the start of the first nested fold and at the end of the current |
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|
2498 // fold: check if existing folds at this level, before the current |
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|
2499 // one, need to be deleted or truncated. |
7 | 2500 if (fp == NULL |
2501 && (lvl != level | |
2502 || flp->lnum_save >= bot | |
2503 || flp->start != 0 | |
2504 || flp->had_end <= MAX_LEVEL | |
2505 || flp->lnum == linecount)) | |
2506 { | |
2507 /* | |
2508 * Remove or update folds that have lines between startlnum and | |
2509 * firstlnum. | |
2510 */ | |
2511 while (!got_int) | |
2512 { | |
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|
2513 // set concat to 1 if it's allowed to concatenated this fold |
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|
2514 // with a previous one that touches it. |
7 | 2515 if (flp->start != 0 || flp->had_end <= MAX_LEVEL) |
2516 concat = 0; | |
2517 else | |
2518 concat = 1; | |
2519 | |
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2520 // Find an existing fold to re-use. Preferably one that |
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|
2521 // includes startlnum, otherwise one that ends just before |
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|
2522 // startlnum or starts after it. |
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changeset
|
2523 if (gap->ga_len > 0 && (foldFind(gap, startlnum, &fp) |
7 | 2524 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len |
2525 && fp->fd_top <= firstlnum) | |
2526 || foldFind(gap, firstlnum - concat, &fp) | |
2527 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
2528 && ((lvl < level && fp->fd_top < flp->lnum) | |
2529 || (lvl >= level | |
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|
2530 && fp->fd_top <= flp->lnum_save))))) |
7 | 2531 { |
2532 if (fp->fd_top + fp->fd_len + concat > firstlnum) | |
2533 { | |
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|
2534 // Use existing fold for the new fold. If it starts |
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|
2535 // before where we started looking, extend it. If it |
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|
2536 // starts at another line, update nested folds to keep |
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|
2537 // their position, compensating for the new fd_top. |
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2538 if (fp->fd_top == firstlnum) |
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|
2539 { |
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|
2540 // have found a fold beginning where we want |
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2541 } |
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|
2542 else if (fp->fd_top >= startlnum) |
7 | 2543 { |
2544 if (fp->fd_top > firstlnum) | |
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diff
changeset
|
2545 // like lines are inserted |
7 | 2546 foldMarkAdjustRecurse(&fp->fd_nested, |
2547 (linenr_T)0, (linenr_T)MAXLNUM, | |
2548 (long)(fp->fd_top - firstlnum), 0L); | |
2549 else | |
18779
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changeset
|
2550 // like lines are deleted |
7 | 2551 foldMarkAdjustRecurse(&fp->fd_nested, |
2552 (linenr_T)0, | |
2553 (long)(firstlnum - fp->fd_top - 1), | |
2554 (linenr_T)MAXLNUM, | |
2555 (long)(fp->fd_top - firstlnum)); | |
2556 fp->fd_len += fp->fd_top - firstlnum; | |
2557 fp->fd_top = firstlnum; | |
2558 fold_changed = TRUE; | |
2559 } | |
11038
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diff
changeset
|
2560 else if ((flp->start != 0 && lvl == level) |
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diff
changeset
|
2561 || firstlnum != startlnum) |
7 | 2562 { |
11038
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changeset
|
2563 linenr_T breakstart; |
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changeset
|
2564 linenr_T breakend; |
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|
2565 |
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|
2566 /* |
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|
2567 * Before there was a fold spanning from above |
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|
2568 * startlnum to below firstlnum. This fold is valid |
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|
2569 * above startlnum (because we are not updating |
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|
2570 * that range), but there should now be a break in |
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|
2571 * it. |
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|
2572 * If the break is because we are now forced to |
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changeset
|
2573 * start a new fold at the level "level" at line |
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|
2574 * fline->lnum, then we need to split the fold at |
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|
2575 * fline->lnum. |
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|
2576 * If the break is because the range |
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|
2577 * [startlnum, firstlnum) is now at a lower indent |
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|
2578 * than "level", we need to split the fold in this |
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|
2579 * range. |
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|
2580 * Any splits have to be done recursively. |
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|
2581 */ |
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|
2582 if (firstlnum != startlnum) |
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|
2583 { |
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|
2584 breakstart = startlnum; |
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|
2585 breakend = firstlnum; |
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|
2586 } |
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|
2587 else |
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|
2588 { |
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|
2589 breakstart = flp->lnum; |
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|
2590 breakend = flp->lnum; |
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|
2591 } |
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|
2592 foldRemove(&fp->fd_nested, breakstart - fp->fd_top, |
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|
2593 breakend - fp->fd_top); |
7 | 2594 i = (int)(fp - (fold_T *)gap->ga_data); |
11038
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|
2595 foldSplit(gap, i, breakstart, breakend - 1); |
7 | 2596 fp = (fold_T *)gap->ga_data + i + 1; |
11038
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|
2597 |
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|
2598 // If using the "marker" or "syntax" method, we |
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|
2599 // need to continue until the end of the fold is |
8f05b3cf8557
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|
2600 // found. |
7 | 2601 if (getlevel == foldlevelMarker |
2602 || getlevel == foldlevelExpr | |
2603 || getlevel == foldlevelSyntax) | |
2604 finish = TRUE; | |
2605 } | |
11038
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|
2606 |
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|
2607 if (fp->fd_top == startlnum && concat) |
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|
2608 { |
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|
2609 i = (int)(fp - (fold_T *)gap->ga_data); |
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|
2610 if (i != 0) |
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|
2611 { |
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|
2612 fp2 = fp - 1; |
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|
2613 if (fp2->fd_top + fp2->fd_len == fp->fd_top) |
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|
2614 { |
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|
2615 foldMerge(fp2, gap, fp); |
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|
2616 fp = fp2; |
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|
2617 } |
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|
2618 } |
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changeset
|
2619 } |
7 | 2620 break; |
2621 } | |
2622 if (fp->fd_top >= startlnum) | |
2623 { | |
18779
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changeset
|
2624 // A fold that starts at or after startlnum and stops |
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changeset
|
2625 // before the new fold must be deleted. Continue |
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changeset
|
2626 // looking for the next one. |
7 | 2627 deleteFoldEntry(gap, |
2628 (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
2629 } | |
2630 else | |
2631 { | |
18779
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diff
changeset
|
2632 // A fold has some lines above startlnum, truncate it |
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2633 // to stop just above startlnum. |
7 | 2634 fp->fd_len = startlnum - fp->fd_top; |
2635 foldMarkAdjustRecurse(&fp->fd_nested, | |
2636 (linenr_T)fp->fd_len, (linenr_T)MAXLNUM, | |
2637 (linenr_T)MAXLNUM, 0L); | |
2638 fold_changed = TRUE; | |
2639 } | |
2640 } | |
2641 else | |
2642 { | |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2643 // Insert new fold. Careful: ga_data may be NULL and it |
8f05b3cf8557
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diff
changeset
|
2644 // may change! |
22006
468569085ab2
patch 8.2.1552: warnings from asan with clang-11
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changeset
|
2645 if (gap->ga_len == 0) |
468569085ab2
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changeset
|
2646 i = 0; |
468569085ab2
patch 8.2.1552: warnings from asan with clang-11
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diff
changeset
|
2647 else |
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2648 i = (int)(fp - (fold_T *)gap->ga_data); |
7 | 2649 if (foldInsert(gap, i) != OK) |
2650 return bot; | |
2651 fp = (fold_T *)gap->ga_data + i; | |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2652 // The new fold continues until bot, unless we find the |
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
2653 // end earlier. |
7 | 2654 fp->fd_top = firstlnum; |
2655 fp->fd_len = bot - firstlnum + 1; | |
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changeset
|
2656 // When the containing fold is open, the new fold is open. |
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2657 // The new fold is closed if the fold above it is closed. |
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2658 // The first fold depends on the containing fold. |
7 | 2659 if (topflags == FD_OPEN) |
2660 { | |
2661 flp->wp->w_fold_manual = TRUE; | |
2662 fp->fd_flags = FD_OPEN; | |
2663 } | |
2664 else if (i <= 0) | |
2665 { | |
2666 fp->fd_flags = topflags; | |
2667 if (topflags != FD_LEVEL) | |
2668 flp->wp->w_fold_manual = TRUE; | |
2669 } | |
2670 else | |
2671 fp->fd_flags = (fp - 1)->fd_flags; | |
2672 fp->fd_small = MAYBE; | |
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changeset
|
2673 // If using the "marker", "expr" or "syntax" method, we |
8f05b3cf8557
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changeset
|
2674 // need to continue until the end of the fold is found. |
7 | 2675 if (getlevel == foldlevelMarker |
2676 || getlevel == foldlevelExpr | |
2677 || getlevel == foldlevelSyntax) | |
2678 finish = TRUE; | |
2679 fold_changed = TRUE; | |
2680 break; | |
2681 } | |
2682 } | |
2683 } | |
2684 | |
2685 if (lvl < level || flp->lnum > linecount) | |
2686 { | |
2687 /* | |
2688 * Found a line with a lower foldlevel, this fold ends just above | |
2689 * "flp->lnum". | |
2690 */ | |
2691 break; | |
2692 } | |
2693 | |
2694 /* | |
2695 * The fold includes the line "flp->lnum" and "flp->lnum_save". | |
840 | 2696 * Check "fp" for safety. |
7 | 2697 */ |
840 | 2698 if (lvl > level && fp != NULL) |
7 | 2699 { |
2700 /* | |
2701 * There is a nested fold, handle it recursively. | |
2702 */ | |
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changeset
|
2703 // At least do one line (can happen when finish is TRUE). |
7 | 2704 if (bot < flp->lnum) |
2705 bot = flp->lnum; | |
2706 | |
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changeset
|
2707 // Line numbers in the nested fold are relative to the start of |
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changeset
|
2708 // this fold. |
7 | 2709 flp->lnum = flp->lnum_save - fp->fd_top; |
2710 flp->off += fp->fd_top; | |
2711 i = (int)(fp - (fold_T *)gap->ga_data); | |
2712 bot = foldUpdateIEMSRecurse(&fp->fd_nested, level + 1, | |
2713 startlnum2 - fp->fd_top, flp, getlevel, | |
2714 bot - fp->fd_top, fp->fd_flags); | |
2715 fp = (fold_T *)gap->ga_data + i; | |
2716 flp->lnum += fp->fd_top; | |
2717 flp->lnum_save += fp->fd_top; | |
2718 flp->off -= fp->fd_top; | |
2719 bot += fp->fd_top; | |
2720 startlnum2 = flp->lnum; | |
2721 | |
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changeset
|
2722 // This fold may end at the same line, don't incr. flp->lnum. |
7 | 2723 } |
2724 else | |
2725 { | |
2726 /* | |
2727 * Get the level of the next line, then continue the loop to check | |
2728 * if it ends there. | |
2729 * Skip over undefined lines, to find the foldlevel after it. | |
2730 * For the last line in the file the foldlevel is always valid. | |
2731 */ | |
2732 flp->lnum = flp->lnum_save; | |
2733 ll = flp->lnum + 1; | |
2734 while (!got_int) | |
2735 { | |
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changeset
|
2736 // Make the previous level available to foldlevel(). |
7 | 2737 prev_lnum = flp->lnum; |
2738 prev_lnum_lvl = flp->lvl; | |
2739 | |
2740 if (++flp->lnum > linecount) | |
2741 break; | |
2742 flp->lvl = flp->lvl_next; | |
2743 getlevel(flp); | |
2744 if (flp->lvl >= 0 || flp->had_end <= MAX_LEVEL) | |
2745 break; | |
2746 } | |
2747 prev_lnum = 0; | |
2748 if (flp->lnum > linecount) | |
2749 break; | |
2750 | |
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changeset
|
2751 // leave flp->lnum_save to lnum of the line that was used to get |
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changeset
|
2752 // the level, flp->lnum to the lnum of the next line. |
7 | 2753 flp->lnum_save = flp->lnum; |
2754 flp->lnum = ll; | |
2755 } | |
2756 } | |
2757 | |
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changeset
|
2758 if (fp == NULL) // only happens when got_int is set |
7 | 2759 return bot; |
2760 | |
2761 /* | |
2762 * Get here when: | |
2763 * lvl < level: the folds ends just above "flp->lnum" | |
2764 * lvl >= level: fold continues below "bot" | |
2765 */ | |
2766 | |
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patch 8.1.1890: ml_get error when deleting fold marker
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changeset
|
2767 // Current fold at least extends until lnum. |
7 | 2768 if (fp->fd_len < flp->lnum - fp->fd_top) |
2769 { | |
2770 fp->fd_len = flp->lnum - fp->fd_top; | |
1513 | 2771 fp->fd_small = MAYBE; |
7 | 2772 fold_changed = TRUE; |
2773 } | |
17787
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changeset
|
2774 else if (fp->fd_top + fp->fd_len > linecount) |
92e0996e1cb8
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Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2775 // running into the end of the buffer (deleted last line) |
92e0996e1cb8
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parents:
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diff
changeset
|
2776 fp->fd_len = linecount - fp->fd_top + 1; |
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diff
changeset
|
2777 |
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parents:
16764
diff
changeset
|
2778 // Delete contained folds from the end of the last one found until where |
92e0996e1cb8
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parents:
16764
diff
changeset
|
2779 // we stopped looking. |
7 | 2780 foldRemove(&fp->fd_nested, startlnum2 - fp->fd_top, |
2781 flp->lnum - 1 - fp->fd_top); | |
2782 | |
2783 if (lvl < level) | |
2784 { | |
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2785 // End of fold found, update the length when it got shorter. |
7 | 2786 if (fp->fd_len != flp->lnum - fp->fd_top) |
2787 { | |
11234
8c153d400bf4
patch 8.0.0503: endless loop in updating folds with 32 bit ints
Christian Brabandt <cb@256bit.org>
parents:
11165
diff
changeset
|
2788 if (fp->fd_top + fp->fd_len - 1 > bot) |
7 | 2789 { |
18779
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parents:
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diff
changeset
|
2790 // fold continued below bot |
7 | 2791 if (getlevel == foldlevelMarker |
2792 || getlevel == foldlevelExpr | |
2793 || getlevel == foldlevelSyntax) | |
2794 { | |
18779
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diff
changeset
|
2795 // marker method: truncate the fold and make sure the |
8f05b3cf8557
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parents:
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diff
changeset
|
2796 // previously included lines are processed again |
7 | 2797 bot = fp->fd_top + fp->fd_len - 1; |
2798 fp->fd_len = flp->lnum - fp->fd_top; | |
2799 } | |
2800 else | |
2801 { | |
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diff
changeset
|
2802 // indent or expr method: split fold to create a new one |
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parents:
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diff
changeset
|
2803 // below bot |
7 | 2804 i = (int)(fp - (fold_T *)gap->ga_data); |
2805 foldSplit(gap, i, flp->lnum, bot); | |
2806 fp = (fold_T *)gap->ga_data + i; | |
2807 } | |
2808 } | |
2809 else | |
2810 fp->fd_len = flp->lnum - fp->fd_top; | |
2811 fold_changed = TRUE; | |
2812 } | |
2813 } | |
2814 | |
18779
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diff
changeset
|
2815 // delete following folds that end before the current line |
7 | 2816 for (;;) |
2817 { | |
2818 fp2 = fp + 1; | |
2819 if (fp2 >= (fold_T *)gap->ga_data + gap->ga_len | |
2820 || fp2->fd_top > flp->lnum) | |
2821 break; | |
2822 if (fp2->fd_top + fp2->fd_len > flp->lnum) | |
2823 { | |
2824 if (fp2->fd_top < flp->lnum) | |
2825 { | |
18779
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2826 // Make fold that includes lnum start at lnum. |
7 | 2827 foldMarkAdjustRecurse(&fp2->fd_nested, |
2828 (linenr_T)0, (long)(flp->lnum - fp2->fd_top - 1), | |
2829 (linenr_T)MAXLNUM, (long)(fp2->fd_top - flp->lnum)); | |
2830 fp2->fd_len -= flp->lnum - fp2->fd_top; | |
2831 fp2->fd_top = flp->lnum; | |
2832 fold_changed = TRUE; | |
2833 } | |
2834 | |
2835 if (lvl >= level) | |
2836 { | |
18779
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diff
changeset
|
2837 // merge new fold with existing fold that follows |
7 | 2838 foldMerge(fp, gap, fp2); |
2839 } | |
2840 break; | |
2841 } | |
2842 fold_changed = TRUE; | |
2843 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
2844 } | |
2845 | |
18779
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parents:
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diff
changeset
|
2846 // Need to redraw the lines we inspected, which might be further down than |
8f05b3cf8557
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parents:
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diff
changeset
|
2847 // was asked for. |
7 | 2848 if (bot < flp->lnum - 1) |
2849 bot = flp->lnum - 1; | |
2850 | |
2851 return bot; | |
2852 } | |
2853 | |
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2854 // foldInsert() {{{2 |
7 | 2855 /* |
2856 * Insert a new fold in "gap" at position "i". | |
2857 * Returns OK for success, FAIL for failure. | |
2858 */ | |
2859 static int | |
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2860 foldInsert(garray_T *gap, int i) |
7 | 2861 { |
2862 fold_T *fp; | |
2863 | |
2864 if (ga_grow(gap, 1) != OK) | |
2865 return FAIL; | |
2866 fp = (fold_T *)gap->ga_data + i; | |
22006
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diff
changeset
|
2867 if (gap->ga_len > 0 && i < gap->ga_len) |
7 | 2868 mch_memmove(fp + 1, fp, sizeof(fold_T) * (gap->ga_len - i)); |
2869 ++gap->ga_len; | |
2870 ga_init2(&fp->fd_nested, (int)sizeof(fold_T), 10); | |
2871 return OK; | |
2872 } | |
2873 | |
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diff
changeset
|
2874 // foldSplit() {{{2 |
7 | 2875 /* |
2876 * Split the "i"th fold in "gap", which starts before "top" and ends below | |
2877 * "bot" in two pieces, one ending above "top" and the other starting below | |
2878 * "bot". | |
2879 * The caller must first have taken care of any nested folds from "top" to | |
2880 * "bot"! | |
2881 */ | |
2882 static void | |
7821
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diff
changeset
|
2883 foldSplit( |
81794242a275
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diff
changeset
|
2884 garray_T *gap, |
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diff
changeset
|
2885 int i, |
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diff
changeset
|
2886 linenr_T top, |
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2887 linenr_T bot) |
7 | 2888 { |
2889 fold_T *fp; | |
2890 fold_T *fp2; | |
2891 garray_T *gap1; | |
2892 garray_T *gap2; | |
2893 int idx; | |
2894 int len; | |
2895 | |
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2896 // The fold continues below bot, need to split it. |
7 | 2897 if (foldInsert(gap, i + 1) == FAIL) |
2898 return; | |
2899 fp = (fold_T *)gap->ga_data + i; | |
2900 fp[1].fd_top = bot + 1; | |
2901 fp[1].fd_len = fp->fd_len - (fp[1].fd_top - fp->fd_top); | |
2902 fp[1].fd_flags = fp->fd_flags; | |
1985 | 2903 fp[1].fd_small = MAYBE; |
2904 fp->fd_small = MAYBE; | |
7 | 2905 |
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|
2906 // Move nested folds below bot to new fold. There can't be |
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diff
changeset
|
2907 // any between top and bot, they have been removed by the caller. |
7 | 2908 gap1 = &fp->fd_nested; |
2909 gap2 = &fp[1].fd_nested; | |
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diff
changeset
|
2910 if (foldFind(gap1, bot + 1 - fp->fd_top, &fp2)) |
7 | 2911 { |
22021
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|
2912 len = (int)((fold_T *)gap1->ga_data + gap1->ga_len - fp2); |
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changeset
|
2913 if (len > 0 && ga_grow(gap2, len) == OK) |
7 | 2914 { |
22021
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changeset
|
2915 for (idx = 0; idx < len; ++idx) |
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|
2916 { |
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changeset
|
2917 ((fold_T *)gap2->ga_data)[idx] = fp2[idx]; |
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changeset
|
2918 ((fold_T *)gap2->ga_data)[idx].fd_top |
514d622473af
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changeset
|
2919 -= fp[1].fd_top - fp->fd_top; |
514d622473af
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changeset
|
2920 } |
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changeset
|
2921 gap2->ga_len = len; |
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2922 gap1->ga_len -= len; |
7 | 2923 } |
2924 } | |
2925 fp->fd_len = top - fp->fd_top; | |
2926 fold_changed = TRUE; | |
2927 } | |
2928 | |
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2929 // foldRemove() {{{2 |
7 | 2930 /* |
2931 * Remove folds within the range "top" to and including "bot". | |
2932 * Check for these situations: | |
2933 * 1 2 3 | |
2934 * 1 2 3 | |
2935 * top 2 3 4 5 | |
2936 * 2 3 4 5 | |
2937 * bot 2 3 4 5 | |
2938 * 3 5 6 | |
2939 * 3 5 6 | |
2940 * | |
2941 * 1: not changed | |
1224 | 2942 * 2: truncate to stop above "top" |
7 | 2943 * 3: split in two parts, one stops above "top", other starts below "bot". |
2944 * 4: deleted | |
2945 * 5: made to start below "bot". | |
2946 * 6: not changed | |
2947 */ | |
2948 static void | |
7821
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2949 foldRemove(garray_T *gap, linenr_T top, linenr_T bot) |
7 | 2950 { |
2951 fold_T *fp = NULL; | |
2952 | |
2953 if (bot < top) | |
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|
2954 return; // nothing to do |
7 | 2955 |
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changeset
|
2956 while (gap->ga_len > 0) |
7 | 2957 { |
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changeset
|
2958 // Find fold that includes top or a following one. |
7 | 2959 if (foldFind(gap, top, &fp) && fp->fd_top < top) |
2960 { | |
18779
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changeset
|
2961 // 2: or 3: need to delete nested folds |
7 | 2962 foldRemove(&fp->fd_nested, top - fp->fd_top, bot - fp->fd_top); |
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diff
changeset
|
2963 if (fp->fd_top + fp->fd_len - 1 > bot) |
7 | 2964 { |
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changeset
|
2965 // 3: need to split it. |
7 | 2966 foldSplit(gap, (int)(fp - (fold_T *)gap->ga_data), top, bot); |
2967 } | |
2968 else | |
2969 { | |
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changeset
|
2970 // 2: truncate fold at "top". |
7 | 2971 fp->fd_len = top - fp->fd_top; |
2972 } | |
2973 fold_changed = TRUE; | |
2974 continue; | |
2975 } | |
2976 if (fp >= (fold_T *)(gap->ga_data) + gap->ga_len | |
2977 || fp->fd_top > bot) | |
2978 { | |
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changeset
|
2979 // 6: Found a fold below bot, can stop looking. |
7 | 2980 break; |
2981 } | |
2982 if (fp->fd_top >= top) | |
2983 { | |
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changeset
|
2984 // Found an entry below top. |
7 | 2985 fold_changed = TRUE; |
36 | 2986 if (fp->fd_top + fp->fd_len - 1 > bot) |
7 | 2987 { |
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|
2988 // 5: Make fold that includes bot start below bot. |
7 | 2989 foldMarkAdjustRecurse(&fp->fd_nested, |
2990 (linenr_T)0, (long)(bot - fp->fd_top), | |
2991 (linenr_T)MAXLNUM, (long)(fp->fd_top - bot - 1)); | |
2992 fp->fd_len -= bot - fp->fd_top + 1; | |
2993 fp->fd_top = bot + 1; | |
2994 break; | |
2995 } | |
2996 | |
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|
2997 // 4: Delete completely contained fold. |
7 | 2998 deleteFoldEntry(gap, (int)(fp - (fold_T *)gap->ga_data), TRUE); |
2999 } | |
3000 } | |
3001 } | |
3002 | |
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|
3003 // foldReverseOrder() {{{2 |
11140
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|
3004 static void |
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changeset
|
3005 foldReverseOrder(garray_T *gap, linenr_T start_arg, linenr_T end_arg) |
11140
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|
3006 { |
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|
3007 fold_T *left, *right; |
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|
3008 fold_T tmp; |
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|
3009 linenr_T start = start_arg; |
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|
3010 linenr_T end = end_arg; |
11140
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|
3011 |
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changeset
|
3012 for (; start < end; start++, end--) |
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|
3013 { |
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changeset
|
3014 left = (fold_T *)gap->ga_data + start; |
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changeset
|
3015 right = (fold_T *)gap->ga_data + end; |
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changeset
|
3016 tmp = *left; |
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changeset
|
3017 *left = *right; |
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changeset
|
3018 *right = tmp; |
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changeset
|
3019 } |
6b26e044b6f5
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changeset
|
3020 } |
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changeset
|
3021 |
18779
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changeset
|
3022 // foldMoveRange() {{{2 |
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changeset
|
3023 /* |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3024 * Move folds within the inclusive range "line1" to "line2" to after "dest" |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3025 * requires "line1" <= "line2" <= "dest" |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3026 * |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3027 * 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
|
3028 * 1 2 3 4 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3029 * 1 2 3 4 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3030 * line1 2 3 4 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3031 * 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
|
3032 * 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
|
3033 * 3 4 6 7 8 9 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3034 * dest 4 7 8 9 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3035 * 4 7 8 10 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3036 * 4 7 8 10 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3037 * |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3038 * 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
|
3039 * the fold array. |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3040 * 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
diff
changeset
|
3041 * 1. not changed |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3042 * 2. truncated above line1 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3043 * 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
|
3044 * 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
|
3045 * 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
|
3046 * 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
|
3047 * 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
|
3048 * 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
diff
changeset
|
3049 * 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:
11131
diff
changeset
|
3050 * 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
diff
changeset
|
3051 * 9. shifted up |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3052 * 10. not changed |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3053 */ |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3054 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3055 static void |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3056 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
|
3057 { |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3058 end += 1; |
11140
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3059 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>
parents:
11148
diff
changeset
|
3060 fp->fd_len = end - fp->fd_top; |
11140
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3061 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3062 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3063 #define fold_end(fp) ((fp)->fd_top + (fp)->fd_len - 1) |
22023
67d3826948ad
patch 8.2.1561: using NULL pointers in fold code
Bram Moolenaar <Bram@vim.org>
parents:
22021
diff
changeset
|
3064 #define valid_fold(fp, gap) ((gap)->ga_len > 0 && (fp) < ((fold_T *)(gap)->ga_data + (gap)->ga_len)) |
11140
6b26e044b6f5
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parents:
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changeset
|
3065 #define fold_index(fp, gap) ((size_t)(fp - ((fold_T *)(gap)->ga_data))) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3066 |
11148
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3067 void |
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3068 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
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3069 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3070 fold_T *fp; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3071 linenr_T range_len = line2 - line1 + 1; |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3072 linenr_T move_len = dest - line2; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3073 int at_start = foldFind(gap, line1 - 1, &fp); |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3074 size_t move_start = 0, move_end = 0, dest_index = 0; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3075 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3076 if (at_start) |
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3077 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3078 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
|
3079 { |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3080 // Case 4 |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3081 // don't have to change this fold, but have to move nested folds. |
11140
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3082 foldMoveRange(&fp->fd_nested, line1 - fp->fd_top, line2 - |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3083 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
diff
changeset
|
3084 return; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3085 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3086 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
|
3087 { |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3088 // Case 3 |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3089 // Remove nested folds between line1 and line2 & reduce the |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3090 // length of fold by "range_len". |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3091 // Folds after this one must be dealt with. |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3092 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>
parents:
11131
diff
changeset
|
3093 fp->fd_top, MAXLNUM, -range_len); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3094 fp->fd_len -= range_len; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3095 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3096 else |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3097 // 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
|
3098 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
|
3099 |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3100 // Look at the next fold, and treat that one as if it were the first |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3101 // after "line1" (because now it is). |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3102 fp = fp + 1; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3103 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3104 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3105 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>
parents:
11131
diff
changeset
|
3106 { |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3107 // Case 10 |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3108 // No folds after "line1" and before "dest" |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3109 return; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3110 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3111 else 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
|
3112 { |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3113 for (; valid_fold(fp, gap) && fold_end(fp) <= dest; fp++) |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3114 // Case 9. (for all case 9's) -- shift up. |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
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changeset
|
3115 fp->fd_top -= 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
|
3116 |
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3117 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>
parents:
11131
diff
changeset
|
3118 { |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3119 // Case 8. -- ensure truncated at dest, shift up |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3120 truncate_fold(fp, dest); |
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
|
3121 fp->fd_top -= 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
|
3122 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3123 return; |
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 else 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
|
3126 { |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3127 // Case 7 -- remove nested folds and shrink |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3128 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>
parents:
11131
diff
changeset
|
3129 fp->fd_top, MAXLNUM, -move_len); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3130 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
|
3131 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
|
3132 return; |
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 |
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3135 // Case 5 or 6 |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3136 // changes rely on whether there are folds between the end of |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3137 // this fold and "dest". |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3138 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
|
3139 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3140 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
|
3141 { |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3142 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
|
3143 { |
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3144 // 1. 2. or 3. |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3145 if (fold_end(fp) > line2) |
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3146 // 2. or 3., truncate before moving |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3147 truncate_fold(fp, line2); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3148 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3149 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
|
3150 continue; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3151 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3152 |
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3153 // Record index of the first fold after the moved range. |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3154 if (move_end == 0) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3155 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
|
3156 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3157 if (fold_end(fp) > dest) |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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parents:
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diff
changeset
|
3158 truncate_fold(fp, dest); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3159 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3160 fp->fd_top -= range_len; |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3161 } |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3162 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3163 dest_index = fold_index(fp, gap); |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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parents:
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diff
changeset
|
3164 |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3165 /* |
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3166 * 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
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parents:
11234
diff
changeset
|
3167 * 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
|
3168 * range [move_start, move_end). |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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parents:
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diff
changeset
|
3169 */ |
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
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parents:
11234
diff
changeset
|
3170 if (move_end == 0) |
18779
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parents:
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changeset
|
3171 // There are no folds after those moved, hence no folds have been moved |
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changeset
|
3172 // out of order. |
11392
dc2800c3572b
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Christian Brabandt <cb@256bit.org>
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changeset
|
3173 return; |
11165
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3174 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:
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diff
changeset
|
3175 foldReverseOrder(gap, (linenr_T)move_start, |
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
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changeset
|
3176 (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
|
3177 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>
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11156
diff
changeset
|
3178 (linenr_T)(dest_index - 1)); |
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3179 } |
6b26e044b6f5
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parents:
11131
diff
changeset
|
3180 #undef fold_end |
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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diff
changeset
|
3181 #undef valid_fold |
6b26e044b6f5
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changeset
|
3182 #undef fold_index |
6b26e044b6f5
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parents:
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changeset
|
3183 |
18779
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parents:
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diff
changeset
|
3184 // foldMerge() {{{2 |
7 | 3185 /* |
1224 | 3186 * Merge two adjacent folds (and the nested ones in them). |
3187 * This only works correctly when the folds are really adjacent! Thus "fp1" | |
7 | 3188 * must end just above "fp2". |
3189 * The resulting fold is "fp1", nested folds are moved from "fp2" to "fp1". | |
3190 * Fold entry "fp2" in "gap" is deleted. | |
3191 */ | |
3192 static void | |
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3193 foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2) |
7 | 3194 { |
3195 fold_T *fp3; | |
3196 fold_T *fp4; | |
3197 int idx; | |
3198 garray_T *gap1 = &fp1->fd_nested; | |
3199 garray_T *gap2 = &fp2->fd_nested; | |
3200 | |
18779
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3201 // If the last nested fold in fp1 touches the first nested fold in fp2, |
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3202 // merge them recursively. |
7 | 3203 if (foldFind(gap1, fp1->fd_len - 1L, &fp3) && foldFind(gap2, 0L, &fp4)) |
3204 foldMerge(fp3, gap2, fp4); | |
3205 | |
18779
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3206 // Move nested folds in fp2 to the end of fp1. |
7 | 3207 if (gap2->ga_len > 0 && ga_grow(gap1, gap2->ga_len) == OK) |
3208 { | |
3209 for (idx = 0; idx < gap2->ga_len; ++idx) | |
3210 { | |
3211 ((fold_T *)gap1->ga_data)[gap1->ga_len] | |
3212 = ((fold_T *)gap2->ga_data)[idx]; | |
3213 ((fold_T *)gap1->ga_data)[gap1->ga_len].fd_top += fp1->fd_len; | |
3214 ++gap1->ga_len; | |
3215 } | |
3216 gap2->ga_len = 0; | |
3217 } | |
3218 | |
3219 fp1->fd_len += fp2->fd_len; | |
3220 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
3221 fold_changed = TRUE; | |
3222 } | |
3223 | |
18779
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3224 // foldlevelIndent() {{{2 |
7 | 3225 /* |
3226 * Low level function to get the foldlevel for the "indent" method. | |
3227 * Doesn't use any caching. | |
3228 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
3229 */ | |
3230 static void | |
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3231 foldlevelIndent(fline_T *flp) |
7 | 3232 { |
3233 char_u *s; | |
3234 buf_T *buf; | |
3235 linenr_T lnum = flp->lnum + flp->off; | |
3236 | |
3237 buf = flp->wp->w_buffer; | |
3238 s = skipwhite(ml_get_buf(buf, lnum, FALSE)); | |
3239 | |
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3240 // empty line or lines starting with a character in 'foldignore': level |
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3241 // depends on surrounding lines |
7 | 3242 if (*s == NUL || vim_strchr(flp->wp->w_p_fdi, *s) != NULL) |
3243 { | |
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3244 // first and last line can't be undefined, use level 0 |
7 | 3245 if (lnum == 1 || lnum == buf->b_ml.ml_line_count) |
3246 flp->lvl = 0; | |
3247 else | |
3248 flp->lvl = -1; | |
3249 } | |
3250 else | |
15031
03831e5ea0de
patch 8.1.0527: using 'shiftwidth' from wrong buffer for folding
Bram Moolenaar <Bram@vim.org>
parents:
12477
diff
changeset
|
3251 flp->lvl = get_indent_buf(buf, lnum) / get_sw_value(buf); |
7 | 3252 if (flp->lvl > flp->wp->w_p_fdn) |
1028 | 3253 { |
7 | 3254 flp->lvl = flp->wp->w_p_fdn; |
1028 | 3255 if (flp->lvl < 0) |
3256 flp->lvl = 0; | |
3257 } | |
7 | 3258 } |
3259 | |
18779
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parents:
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diff
changeset
|
3260 // foldlevelDiff() {{{2 |
7 | 3261 #ifdef FEAT_DIFF |
3262 /* | |
3263 * Low level function to get the foldlevel for the "diff" method. | |
3264 * Doesn't use any caching. | |
3265 */ | |
3266 static void | |
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3267 foldlevelDiff(fline_T *flp) |
7 | 3268 { |
3269 if (diff_infold(flp->wp, flp->lnum + flp->off)) | |
3270 flp->lvl = 1; | |
3271 else | |
3272 flp->lvl = 0; | |
3273 } | |
3274 #endif | |
3275 | |
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3276 // foldlevelExpr() {{{2 |
7 | 3277 /* |
3278 * Low level function to get the foldlevel for the "expr" method. | |
3279 * Doesn't use any caching. | |
3280 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
3281 */ | |
3282 static void | |
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
3283 foldlevelExpr(fline_T *flp) |
7 | 3284 { |
3285 #ifndef FEAT_EVAL | |
3286 flp->start = FALSE; | |
3287 flp->lvl = 0; | |
3288 #else | |
3289 win_T *win; | |
3290 int n; | |
3291 int c; | |
3292 linenr_T lnum = flp->lnum + flp->off; | |
3293 int save_keytyped; | |
3294 | |
3295 win = curwin; | |
3296 curwin = flp->wp; | |
3297 curbuf = flp->wp->w_buffer; | |
3298 set_vim_var_nr(VV_LNUM, lnum); | |
3299 | |
3300 flp->start = 0; | |
3301 flp->had_end = flp->end; | |
3302 flp->end = MAX_LEVEL + 1; | |
3303 if (lnum <= 1) | |
3304 flp->lvl = 0; | |
3305 | |
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changeset
|
3306 // KeyTyped may be reset to 0 when calling a function which invokes |
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
3307 // do_cmdline(). To make 'foldopen' work correctly restore KeyTyped. |
7 | 3308 save_keytyped = KeyTyped; |
9389
32e34e574716
commit https://github.com/vim/vim/commit/22fcfad29276bd5f317faf516637dcd491b96a12
Christian Brabandt <cb@256bit.org>
parents:
9252
diff
changeset
|
3309 n = (int)eval_foldexpr(flp->wp->w_p_fde, &c); |
7 | 3310 KeyTyped = save_keytyped; |
3311 | |
3312 switch (c) | |
3313 { | |
18779
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diff
changeset
|
3314 // "a1", "a2", .. : add to the fold level |
7 | 3315 case 'a': if (flp->lvl >= 0) |
3316 { | |
3317 flp->lvl += n; | |
3318 flp->lvl_next = flp->lvl; | |
3319 } | |
3320 flp->start = n; | |
3321 break; | |
3322 | |
18779
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3323 // "s1", "s2", .. : subtract from the fold level |
7 | 3324 case 's': if (flp->lvl >= 0) |
3325 { | |
3326 if (n > flp->lvl) | |
3327 flp->lvl_next = 0; | |
3328 else | |
3329 flp->lvl_next = flp->lvl - n; | |
3330 flp->end = flp->lvl_next + 1; | |
3331 } | |
3332 break; | |
3333 | |
18779
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parents:
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diff
changeset
|
3334 // ">1", ">2", .. : start a fold with a certain level |
7 | 3335 case '>': flp->lvl = n; |
3336 flp->lvl_next = n; | |
3337 flp->start = 1; | |
3338 break; | |
3339 | |
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diff
changeset
|
3340 // "<1", "<2", .. : end a fold with a certain level |
7 | 3341 case '<': flp->lvl_next = n - 1; |
3342 flp->end = n; | |
3343 break; | |
3344 | |
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diff
changeset
|
3345 // "=": No change in level |
7 | 3346 case '=': flp->lvl_next = flp->lvl; |
3347 break; | |
3348 | |
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changeset
|
3349 // "-1", "0", "1", ..: set fold level |
7 | 3350 default: if (n < 0) |
18779
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changeset
|
3351 // Use the current level for the next line, so that "a1" |
8f05b3cf8557
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diff
changeset
|
3352 // will work there. |
7 | 3353 flp->lvl_next = flp->lvl; |
3354 else | |
3355 flp->lvl_next = n; | |
3356 flp->lvl = n; | |
3357 break; | |
3358 } | |
3359 | |
18779
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diff
changeset
|
3360 // If the level is unknown for the first or the last line in the file, use |
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parents:
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diff
changeset
|
3361 // level 0. |
7 | 3362 if (flp->lvl < 0) |
3363 { | |
3364 if (lnum <= 1) | |
3365 { | |
3366 flp->lvl = 0; | |
3367 flp->lvl_next = 0; | |
3368 } | |
3369 if (lnum == curbuf->b_ml.ml_line_count) | |
3370 flp->lvl_next = 0; | |
3371 } | |
3372 | |
3373 curwin = win; | |
3374 curbuf = curwin->w_buffer; | |
3375 #endif | |
3376 } | |
3377 | |
18779
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parents:
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diff
changeset
|
3378 // parseMarker() {{{2 |
7 | 3379 /* |
3380 * Parse 'foldmarker' and set "foldendmarker", "foldstartmarkerlen" and | |
3381 * "foldendmarkerlen". | |
3382 * Relies on the option value to have been checked for correctness already. | |
3383 */ | |
3384 static void | |
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parents:
7807
diff
changeset
|
3385 parseMarker(win_T *wp) |
7 | 3386 { |
3387 foldendmarker = vim_strchr(wp->w_p_fmr, ','); | |
3388 foldstartmarkerlen = (int)(foldendmarker++ - wp->w_p_fmr); | |
3389 foldendmarkerlen = (int)STRLEN(foldendmarker); | |
3390 } | |
3391 | |
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parents:
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diff
changeset
|
3392 // foldlevelMarker() {{{2 |
7 | 3393 /* |
3394 * Low level function to get the foldlevel for the "marker" method. | |
3395 * "foldendmarker", "foldstartmarkerlen" and "foldendmarkerlen" must have been | |
3396 * set before calling this. | |
3397 * Requires that flp->lvl is set to the fold level of the previous line! | |
3398 * Careful: This means you can't call this function twice on the same line. | |
3399 * Doesn't use any caching. | |
3400 * Sets flp->start when a start marker was found. | |
3401 */ | |
3402 static void | |
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3403 foldlevelMarker(fline_T *flp) |
7 | 3404 { |
3405 char_u *startmarker; | |
3406 int cstart; | |
3407 int cend; | |
3408 int start_lvl = flp->lvl; | |
3409 char_u *s; | |
3410 int n; | |
3411 | |
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parents:
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diff
changeset
|
3412 // cache a few values for speed |
7 | 3413 startmarker = flp->wp->w_p_fmr; |
3414 cstart = *startmarker; | |
3415 ++startmarker; | |
3416 cend = *foldendmarker; | |
3417 | |
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parents:
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diff
changeset
|
3418 // Default: no start found, next level is same as current level |
7 | 3419 flp->start = 0; |
3420 flp->lvl_next = flp->lvl; | |
3421 | |
3422 s = ml_get_buf(flp->wp->w_buffer, flp->lnum + flp->off, FALSE); | |
3423 while (*s) | |
3424 { | |
3425 if (*s == cstart | |
3426 && STRNCMP(s + 1, startmarker, foldstartmarkerlen - 1) == 0) | |
3427 { | |
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parents:
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diff
changeset
|
3428 // found startmarker: set flp->lvl |
7 | 3429 s += foldstartmarkerlen; |
3430 if (VIM_ISDIGIT(*s)) | |
3431 { | |
3432 n = atoi((char *)s); | |
3433 if (n > 0) | |
3434 { | |
3435 flp->lvl = n; | |
3436 flp->lvl_next = n; | |
3437 if (n <= start_lvl) | |
3438 flp->start = 1; | |
3439 else | |
3440 flp->start = n - start_lvl; | |
3441 } | |
3442 } | |
3443 else | |
3444 { | |
3445 ++flp->lvl; | |
3446 ++flp->lvl_next; | |
3447 ++flp->start; | |
3448 } | |
3449 } | |
3450 else if (*s == cend | |
3451 && STRNCMP(s + 1, foldendmarker + 1, foldendmarkerlen - 1) == 0) | |
3452 { | |
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diff
changeset
|
3453 // found endmarker: set flp->lvl_next |
7 | 3454 s += foldendmarkerlen; |
3455 if (VIM_ISDIGIT(*s)) | |
3456 { | |
3457 n = atoi((char *)s); | |
3458 if (n > 0) | |
3459 { | |
3460 flp->lvl = n; | |
3461 flp->lvl_next = n - 1; | |
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changeset
|
3462 // never start a fold with an end marker |
2054
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diff
changeset
|
3463 if (flp->lvl_next > start_lvl) |
79b8d69a4588
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diff
changeset
|
3464 flp->lvl_next = start_lvl; |
7 | 3465 } |
3466 } | |
3467 else | |
3468 --flp->lvl_next; | |
3469 } | |
3470 else | |
11127
506f5d8b7d8b
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parents:
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changeset
|
3471 MB_PTR_ADV(s); |
7 | 3472 } |
3473 | |
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changeset
|
3474 // The level can't go negative, must be missing a start marker. |
7 | 3475 if (flp->lvl_next < 0) |
3476 flp->lvl_next = 0; | |
3477 } | |
3478 | |
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diff
changeset
|
3479 // foldlevelSyntax() {{{2 |
7 | 3480 /* |
3481 * Low level function to get the foldlevel for the "syntax" method. | |
3482 * Doesn't use any caching. | |
3483 */ | |
3484 static void | |
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diff
changeset
|
3485 foldlevelSyntax(fline_T *flp) |
7 | 3486 { |
3487 #ifndef FEAT_SYN_HL | |
3488 flp->start = 0; | |
3489 flp->lvl = 0; | |
3490 #else | |
3491 linenr_T lnum = flp->lnum + flp->off; | |
3492 int n; | |
3493 | |
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diff
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|
3494 // Use the maximum fold level at the start of this line and the next. |
7 | 3495 flp->lvl = syn_get_foldlevel(flp->wp, lnum); |
3496 flp->start = 0; | |
3497 if (lnum < flp->wp->w_buffer->b_ml.ml_line_count) | |
3498 { | |
3499 n = syn_get_foldlevel(flp->wp, lnum + 1); | |
3500 if (n > flp->lvl) | |
3501 { | |
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diff
changeset
|
3502 flp->start = n - flp->lvl; // fold(s) start here |
7 | 3503 flp->lvl = n; |
3504 } | |
3505 } | |
3506 #endif | |
3507 } | |
3508 | |
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|
3509 // functions for storing the fold state in a View {{{1 |
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diff
changeset
|
3510 // put_folds() {{{2 |
7 | 3511 #if defined(FEAT_SESSION) || defined(PROTO) |
7801
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parents:
7009
diff
changeset
|
3512 static int put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off); |
a1e71a01dbd6
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diff
changeset
|
3513 static int put_foldopen_recurse(FILE *fd, win_T *wp, garray_T *gap, linenr_T off); |
a1e71a01dbd6
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diff
changeset
|
3514 static int put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off); |
7 | 3515 |
3516 /* | |
3517 * Write commands to "fd" to restore the manual folds in window "wp". | |
3518 * Return FAIL if writing fails. | |
3519 */ | |
3520 int | |
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diff
changeset
|
3521 put_folds(FILE *fd, win_T *wp) |
7 | 3522 { |
3523 if (foldmethodIsManual(wp)) | |
3524 { | |
3525 if (put_line(fd, "silent! normal! zE") == FAIL | |
3526 || put_folds_recurse(fd, &wp->w_folds, (linenr_T)0) == FAIL) | |
3527 return FAIL; | |
3528 } | |
3529 | |
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|
3530 // If some folds are manually opened/closed, need to restore that. |
7 | 3531 if (wp->w_fold_manual) |
3392 | 3532 return put_foldopen_recurse(fd, wp, &wp->w_folds, (linenr_T)0); |
7 | 3533 |
3534 return OK; | |
3535 } | |
3536 | |
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changeset
|
3537 // put_folds_recurse() {{{2 |
7 | 3538 /* |
3539 * Write commands to "fd" to recreate manually created folds. | |
3540 * Returns FAIL when writing failed. | |
3541 */ | |
3542 static int | |
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diff
changeset
|
3543 put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off) |
7 | 3544 { |
3545 int i; | |
3546 fold_T *fp; | |
3547 | |
3548 fp = (fold_T *)gap->ga_data; | |
3549 for (i = 0; i < gap->ga_len; i++) | |
3550 { | |
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changeset
|
3551 // Do nested folds first, they will be created closed. |
7 | 3552 if (put_folds_recurse(fd, &fp->fd_nested, off + fp->fd_top) == FAIL) |
3553 return FAIL; | |
3554 if (fprintf(fd, "%ld,%ldfold", fp->fd_top + off, | |
3555 fp->fd_top + off + fp->fd_len - 1) < 0 | |
3556 || put_eol(fd) == FAIL) | |
3557 return FAIL; | |
3558 ++fp; | |
3559 } | |
3560 return OK; | |
3561 } | |
3562 | |
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|
3563 // put_foldopen_recurse() {{{2 |
7 | 3564 /* |
3565 * Write commands to "fd" to open and close manually opened/closed folds. | |
3566 * Returns FAIL when writing failed. | |
3567 */ | |
3568 static int | |
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diff
changeset
|
3569 put_foldopen_recurse( |
81794242a275
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diff
changeset
|
3570 FILE *fd, |
81794242a275
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diff
changeset
|
3571 win_T *wp, |
81794242a275
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diff
changeset
|
3572 garray_T *gap, |
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3573 linenr_T off) |
7 | 3574 { |
3575 int i; | |
3392 | 3576 int level; |
7 | 3577 fold_T *fp; |
3578 | |
3579 fp = (fold_T *)gap->ga_data; | |
3580 for (i = 0; i < gap->ga_len; i++) | |
3581 { | |
3582 if (fp->fd_flags != FD_LEVEL) | |
3583 { | |
3584 if (fp->fd_nested.ga_len > 0) | |
3585 { | |
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changeset
|
3586 // open nested folds while this fold is open |
7 | 3587 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 |
3588 || put_eol(fd) == FAIL | |
3766 | 3589 || put_line(fd, "normal! zo") == FAIL) |
7 | 3590 return FAIL; |
3392 | 3591 if (put_foldopen_recurse(fd, wp, &fp->fd_nested, |
3592 off + fp->fd_top) | |
7 | 3593 == FAIL) |
3594 return FAIL; | |
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changeset
|
3595 // close the parent when needed |
3392 | 3596 if (fp->fd_flags == FD_CLOSED) |
3597 { | |
3598 if (put_fold_open_close(fd, fp, off) == FAIL) | |
3599 return FAIL; | |
3600 } | |
3601 } | |
3602 else | |
3603 { | |
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|
3604 // Open or close the leaf according to the window foldlevel. |
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changeset
|
3605 // Do not close a leaf that is already closed, as it will close |
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changeset
|
3606 // the parent. |
3392 | 3607 level = foldLevelWin(wp, off + fp->fd_top); |
3608 if ((fp->fd_flags == FD_CLOSED && wp->w_p_fdl >= level) | |
3609 || (fp->fd_flags != FD_CLOSED && wp->w_p_fdl < level)) | |
3610 if (put_fold_open_close(fd, fp, off) == FAIL) | |
3611 return FAIL; | |
7 | 3612 } |
3613 } | |
3614 ++fp; | |
3615 } | |
3616 | |
3617 return OK; | |
3618 } | |
3392 | 3619 |
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|
3620 // put_fold_open_close() {{{2 |
3392 | 3621 /* |
3622 * Write the open or close command to "fd". | |
3623 * Returns FAIL when writing failed. | |
3624 */ | |
3625 static int | |
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diff
changeset
|
3626 put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off) |
3392 | 3627 { |
3628 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 | |
3629 || put_eol(fd) == FAIL | |
3766 | 3630 || fprintf(fd, "normal! z%c", |
3392 | 3631 fp->fd_flags == FD_CLOSED ? 'c' : 'o') < 0 |
3632 || put_eol(fd) == FAIL) | |
3633 return FAIL; | |
3634 | |
3635 return OK; | |
3636 } | |
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|
3637 #endif // FEAT_SESSION |
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|
3638 |
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|
3639 // }}}1 |
17928
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|
3640 #endif // defined(FEAT_FOLDING) || defined(PROTO) |
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|
3641 |
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|
3642 #if defined(FEAT_EVAL) || defined(PROTO) |
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|
3643 |
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|
3644 /* |
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|
3645 * "foldclosed()" and "foldclosedend()" functions |
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|
3646 */ |
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|
3647 static void |
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changeset
|
3648 foldclosed_both( |
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changeset
|
3649 typval_T *argvars UNUSED, |
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changeset
|
3650 typval_T *rettv, |
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changeset
|
3651 int end UNUSED) |
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|
3652 { |
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|
3653 # ifdef FEAT_FOLDING |
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changeset
|
3654 linenr_T lnum; |
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changeset
|
3655 linenr_T first, last; |
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changeset
|
3656 |
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changeset
|
3657 lnum = tv_get_lnum(argvars); |
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17851
diff
changeset
|
3658 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
|
3659 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3660 if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL)) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3661 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3662 if (end) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3663 rettv->vval.v_number = (varnumber_T)last; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3664 else |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3665 rettv->vval.v_number = (varnumber_T)first; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3666 return; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3667 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3668 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3669 #endif |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3670 rettv->vval.v_number = -1; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3671 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3672 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3673 /* |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3674 * "foldclosed()" function |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3675 */ |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3676 void |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3677 f_foldclosed(typval_T *argvars, typval_T *rettv) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3678 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3679 foldclosed_both(argvars, rettv, FALSE); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3680 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3681 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3682 /* |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3683 * "foldclosedend()" function |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3684 */ |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3685 void |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3686 f_foldclosedend(typval_T *argvars, typval_T *rettv) |
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 foldclosed_both(argvars, rettv, TRUE); |
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 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3691 /* |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3692 * "foldlevel()" function |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3693 */ |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3694 void |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3695 f_foldlevel(typval_T *argvars UNUSED, typval_T *rettv UNUSED) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3696 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3697 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3698 linenr_T lnum; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3699 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3700 lnum = tv_get_lnum(argvars); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3701 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
|
3702 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
|
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 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3706 /* |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3707 * "foldtext()" function |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3708 */ |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3709 void |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3710 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
|
3711 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3712 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3713 linenr_T foldstart; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3714 linenr_T foldend; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3715 char_u *dashes; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3716 linenr_T lnum; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3717 char_u *s; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3718 char_u *r; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3719 int len; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3720 char *txt; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3721 long count; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3722 # endif |
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 rettv->v_type = VAR_STRING; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3725 rettv->vval.v_string = NULL; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3726 # ifdef FEAT_FOLDING |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3727 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
|
3728 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
|
3729 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
|
3730 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
|
3731 && dashes != NULL) |
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 // 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
|
3734 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
|
3735 if (!linewhite(lnum)) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3736 break; |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3737 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3738 // 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
|
3739 s = skipwhite(ml_get(lnum)); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3740 // skip C comment-start |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3741 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
|
3742 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3743 s = skipwhite(s + 2); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3744 if (*skipwhite(s) == NUL |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3745 && 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
|
3746 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3747 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
|
3748 if (*s == '*') |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3749 s = skipwhite(s + 1); |
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 count = (long)(foldend - foldstart + 1); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3753 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
|
3754 r = alloc(STRLEN(txt) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3755 + STRLEN(dashes) // for %s |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3756 + 20 // for %3ld |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3757 + STRLEN(s)); // concatenated |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3758 if (r != NULL) |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3759 { |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3760 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
|
3761 len = (int)STRLEN(r); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3762 STRCAT(r, s); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3763 // remove 'foldmarker' and 'commentstring' |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3764 foldtext_cleanup(r + len); |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3765 rettv->vval.v_string = r; |
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 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3768 # endif |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3769 } |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3770 |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3771 /* |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3772 * "foldtextresult(lnum)" function |
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 void |
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3775 f_foldtextresult(typval_T *argvars UNUSED, typval_T *rettv) |
34639bba19b0
patch 8.1.1960: fold code is spread out
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3776 { |
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3777 # ifdef FEAT_FOLDING |
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patch 8.1.1960: fold code is spread out
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3778 linenr_T lnum; |
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3779 char_u *text; |
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|
3780 char_u buf[FOLD_TEXT_LEN]; |
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3781 foldinfo_T foldinfo; |
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|
3782 int fold_count; |
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3783 static int entered = FALSE; |
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3784 # endif |
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3785 |
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3786 rettv->v_type = VAR_STRING; |
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3787 rettv->vval.v_string = NULL; |
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3788 # ifdef FEAT_FOLDING |
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3789 if (entered) |
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3790 return; // reject recursive use |
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3791 entered = TRUE; |
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3792 |
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3793 lnum = tv_get_lnum(argvars); |
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3794 // treat illegal types and illegal string values for {lnum} the same |
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3795 if (lnum < 0) |
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|
3796 lnum = 0; |
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3797 fold_count = foldedCount(curwin, lnum, &foldinfo); |
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3798 if (fold_count > 0) |
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3799 { |
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3800 text = get_foldtext(curwin, lnum, lnum + fold_count - 1, |
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3801 &foldinfo, buf); |
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3802 if (text == buf) |
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3803 text = vim_strsave(text); |
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3804 rettv->vval.v_string = text; |
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3805 } |
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3806 |
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3807 entered = FALSE; |
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3808 # endif |
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3809 } |
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3810 |
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3811 #endif // FEAT_EVAL |