Mercurial > vim
annotate src/fold.c @ 11140:6b26e044b6f5 v8.0.0457
patch 8.0.0457: using :move messes up manual folds
commit https://github.com/vim/vim/commit/88d298aed8682eac872ebfe40df3112a6acd83e8
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Mar 14 21:53:58 2017 +0100
patch 8.0.0457: using :move messes up manual folds
Problem: Using :move messes up manual folds.
Solution: Split adjusting marks and folds. Add foldMoveRange(). (neovim
patch #6221)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Tue, 14 Mar 2017 22:00:05 +0100 |
| parents | 8d9ecf09183a |
| children | 87779062d706 |
| rev | line source |
|---|---|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * vim600:fdm=marker fdl=1 fdc=3: |
| 3 * | |
| 4 * VIM - Vi IMproved by Bram Moolenaar | |
| 5 * | |
| 6 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 7 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 8 * See README.txt for an overview of the Vim source code. | |
| 9 */ | |
| 10 | |
| 11 /* | |
| 12 * fold.c: code for folding | |
| 13 */ | |
| 14 | |
| 15 #include "vim.h" | |
| 16 | |
| 17 #if defined(FEAT_FOLDING) || defined(PROTO) | |
| 18 | |
| 19 /* local declarations. {{{1 */ | |
| 20 /* typedef fold_T {{{2 */ | |
| 21 /* | |
| 22 * The toplevel folds for each window are stored in the w_folds growarray. | |
| 23 * Each toplevel fold can contain an array of second level folds in the | |
| 24 * fd_nested growarray. | |
| 25 * The info stored in both growarrays is the same: An array of fold_T. | |
| 26 */ | |
| 27 typedef struct | |
| 28 { | |
| 29 linenr_T fd_top; /* first line of fold; for nested fold | |
| 30 * relative to parent */ | |
| 31 linenr_T fd_len; /* number of lines in the fold */ | |
| 32 garray_T fd_nested; /* array of nested folds */ | |
| 33 char fd_flags; /* see below */ | |
| 34 char fd_small; /* TRUE, FALSE or MAYBE: fold smaller than | |
| 35 'foldminlines'; MAYBE applies to nested | |
| 36 folds too */ | |
| 37 } fold_T; | |
| 38 | |
| 39 #define FD_OPEN 0 /* fold is open (nested ones can be closed) */ | |
| 40 #define FD_CLOSED 1 /* fold is closed */ | |
| 41 #define FD_LEVEL 2 /* depends on 'foldlevel' (nested folds too) */ | |
| 42 | |
| 43 #define MAX_LEVEL 20 /* maximum fold depth */ | |
| 44 | |
| 45 /* static functions {{{2 */ | |
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46 static void newFoldLevelWin(win_T *wp); |
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47 static int checkCloseRec(garray_T *gap, linenr_T lnum, int level); |
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48 static int foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp); |
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49 static int foldLevelWin(win_T *wp, linenr_T lnum); |
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50 static void checkupdate(win_T *wp); |
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51 static void setFoldRepeat(linenr_T lnum, long count, int do_open); |
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52 static linenr_T setManualFold(linenr_T lnum, int opening, int recurse, int *donep); |
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53 static linenr_T setManualFoldWin(win_T *wp, linenr_T lnum, int opening, int recurse, int *donep); |
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54 static void foldOpenNested(fold_T *fpr); |
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55 static void deleteFoldEntry(garray_T *gap, int idx, int recursive); |
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56 static void foldMarkAdjustRecurse(garray_T *gap, linenr_T line1, linenr_T line2, long amount, long amount_after); |
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57 static int getDeepestNestingRecurse(garray_T *gap); |
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58 static int check_closed(win_T *win, fold_T *fp, int *use_levelp, int level, int *maybe_smallp, linenr_T lnum_off); |
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59 static void checkSmall(win_T *wp, fold_T *fp, linenr_T lnum_off); |
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60 static void setSmallMaybe(garray_T *gap); |
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61 static void foldCreateMarkers(linenr_T start, linenr_T end); |
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62 static void foldAddMarker(linenr_T lnum, char_u *marker, int markerlen); |
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63 static void deleteFoldMarkers(fold_T *fp, int recursive, linenr_T lnum_off); |
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64 static void foldDelMarker(linenr_T lnum, char_u *marker, int markerlen); |
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65 static void foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot); |
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66 static void parseMarker(win_T *wp); |
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67 static void foldMoveRange_int(garray_T *gap, linenr_T line1, linenr_T line2, linenr_T dest); |
| 7 | 68 |
| 69 static char *e_nofold = N_("E490: No fold found"); | |
| 70 | |
| 71 /* | |
| 72 * While updating the folds lines between invalid_top and invalid_bot have an | |
| 73 * undefined fold level. Only used for the window currently being updated. | |
| 74 */ | |
| 75 static linenr_T invalid_top = (linenr_T)0; | |
| 76 static linenr_T invalid_bot = (linenr_T)0; | |
| 77 | |
| 78 /* | |
| 79 * When using 'foldexpr' we sometimes get the level of the next line, which | |
| 80 * calls foldlevel() to get the level of the current line, which hasn't been | |
| 81 * stored yet. To get around this chicken-egg problem the level of the | |
| 82 * previous line is stored here when available. prev_lnum is zero when the | |
| 83 * level is not available. | |
| 84 */ | |
| 85 static linenr_T prev_lnum = 0; | |
| 86 static int prev_lnum_lvl = -1; | |
| 87 | |
| 88 /* Flags used for "done" argument of setManualFold. */ | |
| 89 #define DONE_NOTHING 0 | |
| 90 #define DONE_ACTION 1 /* did close or open a fold */ | |
| 91 #define DONE_FOLD 2 /* did find a fold */ | |
| 92 | |
| 93 static int foldstartmarkerlen; | |
| 94 static char_u *foldendmarker; | |
| 95 static int foldendmarkerlen; | |
| 96 | |
| 97 /* Exported folding functions. {{{1 */ | |
| 98 /* copyFoldingState() {{{2 */ | |
| 99 #if defined(FEAT_WINDOWS) || defined(PROTO) | |
| 100 /* | |
| 101 * Copy that folding state from window "wp_from" to window "wp_to". | |
| 102 */ | |
| 103 void | |
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104 copyFoldingState(win_T *wp_from, win_T *wp_to) |
| 7 | 105 { |
| 106 wp_to->w_fold_manual = wp_from->w_fold_manual; | |
| 107 wp_to->w_foldinvalid = wp_from->w_foldinvalid; | |
| 108 cloneFoldGrowArray(&wp_from->w_folds, &wp_to->w_folds); | |
| 109 } | |
| 110 #endif | |
| 111 | |
| 112 /* hasAnyFolding() {{{2 */ | |
| 113 /* | |
| 114 * Return TRUE if there may be folded lines in the current window. | |
| 115 */ | |
| 116 int | |
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117 hasAnyFolding(win_T *win) |
| 7 | 118 { |
| 119 /* very simple now, but can become more complex later */ | |
| 120 return (win->w_p_fen | |
| 121 && (!foldmethodIsManual(win) || win->w_folds.ga_len > 0)); | |
| 122 } | |
| 123 | |
| 124 /* hasFolding() {{{2 */ | |
| 125 /* | |
| 126 * Return TRUE if line "lnum" in the current window is part of a closed | |
| 127 * fold. | |
| 128 * When returning TRUE, *firstp and *lastp are set to the first and last | |
| 129 * lnum of the sequence of folded lines (skipped when NULL). | |
| 130 */ | |
| 131 int | |
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132 hasFolding(linenr_T lnum, linenr_T *firstp, linenr_T *lastp) |
| 7 | 133 { |
| 134 return hasFoldingWin(curwin, lnum, firstp, lastp, TRUE, NULL); | |
| 135 } | |
| 136 | |
| 137 /* hasFoldingWin() {{{2 */ | |
| 138 int | |
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139 hasFoldingWin( |
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140 win_T *win, |
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141 linenr_T lnum, |
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142 linenr_T *firstp, |
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143 linenr_T *lastp, |
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144 int cache, /* when TRUE: use cached values of window */ |
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145 foldinfo_T *infop) /* where to store fold info */ |
| 7 | 146 { |
| 147 int had_folded = FALSE; | |
| 148 linenr_T first = 0; | |
| 149 linenr_T last = 0; | |
| 150 linenr_T lnum_rel = lnum; | |
| 151 int x; | |
| 152 fold_T *fp; | |
| 153 int level = 0; | |
| 154 int use_level = FALSE; | |
| 155 int maybe_small = FALSE; | |
| 156 garray_T *gap; | |
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157 int low_level = 0; |
| 7 | 158 |
| 159 checkupdate(win); | |
| 160 /* | |
| 161 * Return quickly when there is no folding at all in this window. | |
| 162 */ | |
| 163 if (!hasAnyFolding(win)) | |
| 164 { | |
| 165 if (infop != NULL) | |
| 166 infop->fi_level = 0; | |
| 167 return FALSE; | |
| 168 } | |
| 169 | |
| 170 if (cache) | |
| 171 { | |
| 172 /* | |
| 173 * First look in cached info for displayed lines. This is probably | |
| 174 * the fastest, but it can only be used if the entry is still valid. | |
| 175 */ | |
| 176 x = find_wl_entry(win, lnum); | |
| 177 if (x >= 0) | |
| 178 { | |
| 179 first = win->w_lines[x].wl_lnum; | |
| 180 last = win->w_lines[x].wl_lastlnum; | |
| 181 had_folded = win->w_lines[x].wl_folded; | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 if (first == 0) | |
| 186 { | |
| 187 /* | |
| 188 * Recursively search for a fold that contains "lnum". | |
| 189 */ | |
| 190 gap = &win->w_folds; | |
| 191 for (;;) | |
| 192 { | |
| 193 if (!foldFind(gap, lnum_rel, &fp)) | |
| 194 break; | |
| 195 | |
| 196 /* Remember lowest level of fold that starts in "lnum". */ | |
| 197 if (lnum_rel == fp->fd_top && low_level == 0) | |
| 198 low_level = level + 1; | |
| 199 | |
| 200 first += fp->fd_top; | |
| 201 last += fp->fd_top; | |
| 202 | |
| 203 /* is this fold closed? */ | |
| 204 had_folded = check_closed(win, fp, &use_level, level, | |
| 205 &maybe_small, lnum - lnum_rel); | |
| 206 if (had_folded) | |
| 207 { | |
| 208 /* Fold closed: Set last and quit loop. */ | |
| 209 last += fp->fd_len - 1; | |
| 210 break; | |
| 211 } | |
| 212 | |
| 213 /* Fold found, but it's open: Check nested folds. Line number is | |
| 214 * relative to containing fold. */ | |
| 215 gap = &fp->fd_nested; | |
| 216 lnum_rel -= fp->fd_top; | |
| 217 ++level; | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 if (!had_folded) | |
| 222 { | |
| 223 if (infop != NULL) | |
| 224 { | |
| 225 infop->fi_level = level; | |
| 226 infop->fi_lnum = lnum - lnum_rel; | |
| 227 infop->fi_low_level = low_level == 0 ? level : low_level; | |
| 228 } | |
| 229 return FALSE; | |
| 230 } | |
| 231 | |
| 6753 | 232 if (last > win->w_buffer->b_ml.ml_line_count) |
| 233 last = win->w_buffer->b_ml.ml_line_count; | |
| 7 | 234 if (lastp != NULL) |
| 235 *lastp = last; | |
| 236 if (firstp != NULL) | |
| 237 *firstp = first; | |
| 238 if (infop != NULL) | |
| 239 { | |
| 240 infop->fi_level = level + 1; | |
| 241 infop->fi_lnum = first; | |
| 242 infop->fi_low_level = low_level == 0 ? level + 1 : low_level; | |
| 243 } | |
| 244 return TRUE; | |
| 245 } | |
| 246 | |
| 247 /* foldLevel() {{{2 */ | |
| 248 /* | |
| 249 * Return fold level at line number "lnum" in the current window. | |
| 250 */ | |
| 251 int | |
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252 foldLevel(linenr_T lnum) |
| 7 | 253 { |
| 254 /* While updating the folds lines between invalid_top and invalid_bot have | |
| 255 * an undefined fold level. Otherwise update the folds first. */ | |
| 256 if (invalid_top == (linenr_T)0) | |
| 257 checkupdate(curwin); | |
| 258 else if (lnum == prev_lnum && prev_lnum_lvl >= 0) | |
| 259 return prev_lnum_lvl; | |
| 260 else if (lnum >= invalid_top && lnum <= invalid_bot) | |
| 261 return -1; | |
| 262 | |
| 263 /* Return quickly when there is no folding at all in this window. */ | |
| 264 if (!hasAnyFolding(curwin)) | |
| 265 return 0; | |
| 266 | |
| 267 return foldLevelWin(curwin, lnum); | |
| 268 } | |
| 269 | |
| 270 /* lineFolded() {{{2 */ | |
| 271 /* | |
| 272 * Low level function to check if a line is folded. Doesn't use any caching. | |
| 273 * Return TRUE if line is folded. | |
| 274 * Return FALSE if line is not folded. | |
| 275 * Return MAYBE if the line is folded when next to a folded line. | |
| 276 */ | |
| 277 int | |
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278 lineFolded(win_T *win, linenr_T lnum) |
| 7 | 279 { |
| 280 return foldedCount(win, lnum, NULL) != 0; | |
| 281 } | |
| 282 | |
| 283 /* foldedCount() {{{2 */ | |
| 284 /* | |
| 285 * Count the number of lines that are folded at line number "lnum". | |
| 286 * Normally "lnum" is the first line of a possible fold, and the returned | |
| 287 * number is the number of lines in the fold. | |
| 288 * Doesn't use caching from the displayed window. | |
| 289 * Returns number of folded lines from "lnum", or 0 if line is not folded. | |
| 290 * When "infop" is not NULL, fills *infop with the fold level info. | |
| 291 */ | |
| 292 long | |
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293 foldedCount(win_T *win, linenr_T lnum, foldinfo_T *infop) |
| 7 | 294 { |
| 295 linenr_T last; | |
| 296 | |
| 297 if (hasFoldingWin(win, lnum, NULL, &last, FALSE, infop)) | |
| 298 return (long)(last - lnum + 1); | |
| 299 return 0; | |
| 300 } | |
| 301 | |
| 302 /* foldmethodIsManual() {{{2 */ | |
| 303 /* | |
| 304 * Return TRUE if 'foldmethod' is "manual" | |
| 305 */ | |
| 306 int | |
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307 foldmethodIsManual(win_T *wp) |
| 7 | 308 { |
| 309 return (wp->w_p_fdm[3] == 'u'); | |
| 310 } | |
| 311 | |
| 312 /* foldmethodIsIndent() {{{2 */ | |
| 313 /* | |
| 314 * Return TRUE if 'foldmethod' is "indent" | |
| 315 */ | |
| 316 int | |
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317 foldmethodIsIndent(win_T *wp) |
| 7 | 318 { |
| 319 return (wp->w_p_fdm[0] == 'i'); | |
| 320 } | |
| 321 | |
| 322 /* foldmethodIsExpr() {{{2 */ | |
| 323 /* | |
| 324 * Return TRUE if 'foldmethod' is "expr" | |
| 325 */ | |
| 326 int | |
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327 foldmethodIsExpr(win_T *wp) |
| 7 | 328 { |
| 329 return (wp->w_p_fdm[1] == 'x'); | |
| 330 } | |
| 331 | |
| 332 /* foldmethodIsMarker() {{{2 */ | |
| 333 /* | |
| 334 * Return TRUE if 'foldmethod' is "marker" | |
| 335 */ | |
| 336 int | |
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337 foldmethodIsMarker(win_T *wp) |
| 7 | 338 { |
| 339 return (wp->w_p_fdm[2] == 'r'); | |
| 340 } | |
| 341 | |
| 342 /* foldmethodIsSyntax() {{{2 */ | |
| 343 /* | |
| 344 * Return TRUE if 'foldmethod' is "syntax" | |
| 345 */ | |
| 346 int | |
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347 foldmethodIsSyntax(win_T *wp) |
| 7 | 348 { |
| 349 return (wp->w_p_fdm[0] == 's'); | |
| 350 } | |
| 351 | |
| 352 /* foldmethodIsDiff() {{{2 */ | |
| 353 /* | |
| 354 * Return TRUE if 'foldmethod' is "diff" | |
| 355 */ | |
| 356 int | |
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357 foldmethodIsDiff(win_T *wp) |
| 7 | 358 { |
| 359 return (wp->w_p_fdm[0] == 'd'); | |
| 360 } | |
| 361 | |
| 362 /* closeFold() {{{2 */ | |
| 363 /* | |
| 364 * Close fold for current window at line "lnum". | |
| 365 * Repeat "count" times. | |
| 366 */ | |
| 367 void | |
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368 closeFold(linenr_T lnum, long count) |
| 7 | 369 { |
| 370 setFoldRepeat(lnum, count, FALSE); | |
| 371 } | |
| 372 | |
| 373 /* closeFoldRecurse() {{{2 */ | |
| 374 /* | |
| 375 * Close fold for current window at line "lnum" recursively. | |
| 376 */ | |
| 377 void | |
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378 closeFoldRecurse(linenr_T lnum) |
| 7 | 379 { |
| 380 (void)setManualFold(lnum, FALSE, TRUE, NULL); | |
| 381 } | |
| 382 | |
| 383 /* opFoldRange() {{{2 */ | |
| 384 /* | |
| 385 * Open or Close folds for current window in lines "first" to "last". | |
| 386 * Used for "zo", "zO", "zc" and "zC" in Visual mode. | |
| 387 */ | |
| 388 void | |
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389 opFoldRange( |
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390 linenr_T first, |
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391 linenr_T last, |
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392 int opening, /* TRUE to open, FALSE to close */ |
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393 int recurse, /* TRUE to do it recursively */ |
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394 int had_visual) /* TRUE when Visual selection used */ |
| 7 | 395 { |
| 396 int done = DONE_NOTHING; /* avoid error messages */ | |
| 397 linenr_T lnum; | |
| 398 linenr_T lnum_next; | |
| 399 | |
| 400 for (lnum = first; lnum <= last; lnum = lnum_next + 1) | |
| 401 { | |
| 402 lnum_next = lnum; | |
| 403 /* Opening one level only: next fold to open is after the one going to | |
| 404 * be opened. */ | |
| 405 if (opening && !recurse) | |
| 406 (void)hasFolding(lnum, NULL, &lnum_next); | |
| 407 (void)setManualFold(lnum, opening, recurse, &done); | |
| 408 /* Closing one level only: next line to close a fold is after just | |
| 409 * closed fold. */ | |
| 410 if (!opening && !recurse) | |
| 411 (void)hasFolding(lnum, NULL, &lnum_next); | |
| 412 } | |
| 413 if (done == DONE_NOTHING) | |
| 414 EMSG(_(e_nofold)); | |
| 415 /* Force a redraw to remove the Visual highlighting. */ | |
| 416 if (had_visual) | |
| 417 redraw_curbuf_later(INVERTED); | |
| 418 } | |
| 419 | |
| 420 /* openFold() {{{2 */ | |
| 421 /* | |
| 422 * Open fold for current window at line "lnum". | |
| 423 * Repeat "count" times. | |
| 424 */ | |
| 425 void | |
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426 openFold(linenr_T lnum, long count) |
| 7 | 427 { |
| 428 setFoldRepeat(lnum, count, TRUE); | |
| 429 } | |
| 430 | |
| 431 /* openFoldRecurse() {{{2 */ | |
| 432 /* | |
| 433 * Open fold for current window at line "lnum" recursively. | |
| 434 */ | |
| 435 void | |
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436 openFoldRecurse(linenr_T lnum) |
| 7 | 437 { |
| 438 (void)setManualFold(lnum, TRUE, TRUE, NULL); | |
| 439 } | |
| 440 | |
| 441 /* foldOpenCursor() {{{2 */ | |
| 442 /* | |
| 443 * Open folds until the cursor line is not in a closed fold. | |
| 444 */ | |
| 445 void | |
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446 foldOpenCursor(void) |
| 7 | 447 { |
| 448 int done; | |
| 449 | |
| 450 checkupdate(curwin); | |
| 451 if (hasAnyFolding(curwin)) | |
| 452 for (;;) | |
| 453 { | |
| 454 done = DONE_NOTHING; | |
| 455 (void)setManualFold(curwin->w_cursor.lnum, TRUE, FALSE, &done); | |
| 456 if (!(done & DONE_ACTION)) | |
| 457 break; | |
| 458 } | |
| 459 } | |
| 460 | |
| 461 /* newFoldLevel() {{{2 */ | |
| 462 /* | |
| 463 * Set new foldlevel for current window. | |
| 464 */ | |
| 465 void | |
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466 newFoldLevel(void) |
| 7 | 467 { |
| 468 newFoldLevelWin(curwin); | |
| 469 | |
| 470 #ifdef FEAT_DIFF | |
| 471 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
| 472 { | |
| 473 win_T *wp; | |
| 474 | |
| 475 /* | |
| 476 * Set the same foldlevel in other windows in diff mode. | |
| 477 */ | |
| 478 FOR_ALL_WINDOWS(wp) | |
| 479 { | |
| 480 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
| 481 { | |
| 482 wp->w_p_fdl = curwin->w_p_fdl; | |
| 483 newFoldLevelWin(wp); | |
| 484 } | |
| 485 } | |
| 486 } | |
| 487 #endif | |
| 488 } | |
| 489 | |
| 490 static void | |
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491 newFoldLevelWin(win_T *wp) |
| 7 | 492 { |
| 493 fold_T *fp; | |
| 494 int i; | |
| 495 | |
| 496 checkupdate(wp); | |
| 497 if (wp->w_fold_manual) | |
| 498 { | |
| 499 /* Set all flags for the first level of folds to FD_LEVEL. Following | |
| 500 * manual open/close will then change the flags to FD_OPEN or | |
| 501 * FD_CLOSED for those folds that don't use 'foldlevel'. */ | |
| 502 fp = (fold_T *)wp->w_folds.ga_data; | |
| 503 for (i = 0; i < wp->w_folds.ga_len; ++i) | |
| 504 fp[i].fd_flags = FD_LEVEL; | |
| 505 wp->w_fold_manual = FALSE; | |
| 506 } | |
| 507 changed_window_setting_win(wp); | |
| 508 } | |
| 509 | |
| 510 /* foldCheckClose() {{{2 */ | |
| 511 /* | |
| 512 * Apply 'foldlevel' to all folds that don't contain the cursor. | |
| 513 */ | |
| 514 void | |
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515 foldCheckClose(void) |
| 7 | 516 { |
| 517 if (*p_fcl != NUL) /* can only be "all" right now */ | |
| 518 { | |
| 519 checkupdate(curwin); | |
| 520 if (checkCloseRec(&curwin->w_folds, curwin->w_cursor.lnum, | |
| 521 (int)curwin->w_p_fdl)) | |
| 522 changed_window_setting(); | |
| 523 } | |
| 524 } | |
| 525 | |
| 526 /* checkCloseRec() {{{2 */ | |
| 527 static int | |
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528 checkCloseRec(garray_T *gap, linenr_T lnum, int level) |
| 7 | 529 { |
| 530 fold_T *fp; | |
| 531 int retval = FALSE; | |
| 532 int i; | |
| 533 | |
| 534 fp = (fold_T *)gap->ga_data; | |
| 535 for (i = 0; i < gap->ga_len; ++i) | |
| 536 { | |
| 537 /* Only manually opened folds may need to be closed. */ | |
| 538 if (fp[i].fd_flags == FD_OPEN) | |
| 539 { | |
| 540 if (level <= 0 && (lnum < fp[i].fd_top | |
| 541 || lnum >= fp[i].fd_top + fp[i].fd_len)) | |
| 542 { | |
| 543 fp[i].fd_flags = FD_LEVEL; | |
| 544 retval = TRUE; | |
| 545 } | |
| 546 else | |
| 547 retval |= checkCloseRec(&fp[i].fd_nested, lnum - fp[i].fd_top, | |
| 548 level - 1); | |
| 549 } | |
| 550 } | |
| 551 return retval; | |
| 552 } | |
| 553 | |
| 554 /* foldCreateAllowed() {{{2 */ | |
| 555 /* | |
| 556 * Return TRUE if it's allowed to manually create or delete a fold. | |
| 557 * Give an error message and return FALSE if not. | |
| 558 */ | |
| 559 int | |
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560 foldManualAllowed(int create) |
| 7 | 561 { |
| 562 if (foldmethodIsManual(curwin) || foldmethodIsMarker(curwin)) | |
| 563 return TRUE; | |
| 564 if (create) | |
| 565 EMSG(_("E350: Cannot create fold with current 'foldmethod'")); | |
| 566 else | |
| 567 EMSG(_("E351: Cannot delete fold with current 'foldmethod'")); | |
| 568 return FALSE; | |
| 569 } | |
| 570 | |
| 571 /* foldCreate() {{{2 */ | |
| 572 /* | |
| 573 * Create a fold from line "start" to line "end" (inclusive) in the current | |
| 574 * window. | |
| 575 */ | |
| 576 void | |
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577 foldCreate(linenr_T start, linenr_T end) |
| 7 | 578 { |
| 579 fold_T *fp; | |
| 580 garray_T *gap; | |
| 581 garray_T fold_ga; | |
| 582 int i, j; | |
| 583 int cont; | |
| 584 int use_level = FALSE; | |
| 585 int closed = FALSE; | |
| 586 int level = 0; | |
| 587 linenr_T start_rel = start; | |
| 588 linenr_T end_rel = end; | |
| 589 | |
| 590 if (start > end) | |
| 591 { | |
| 592 /* reverse the range */ | |
| 593 end = start_rel; | |
| 594 start = end_rel; | |
| 595 start_rel = start; | |
| 596 end_rel = end; | |
| 597 } | |
| 598 | |
| 599 /* When 'foldmethod' is "marker" add markers, which creates the folds. */ | |
| 600 if (foldmethodIsMarker(curwin)) | |
| 601 { | |
| 602 foldCreateMarkers(start, end); | |
| 603 return; | |
| 604 } | |
| 605 | |
| 606 checkupdate(curwin); | |
| 607 | |
| 608 /* Find the place to insert the new fold. */ | |
| 609 gap = &curwin->w_folds; | |
| 610 for (;;) | |
| 611 { | |
| 612 if (!foldFind(gap, start_rel, &fp)) | |
| 613 break; | |
| 614 if (fp->fd_top + fp->fd_len > end_rel) | |
| 615 { | |
| 616 /* New fold is completely inside this fold: Go one level deeper. */ | |
| 617 gap = &fp->fd_nested; | |
| 618 start_rel -= fp->fd_top; | |
| 619 end_rel -= fp->fd_top; | |
| 620 if (use_level || fp->fd_flags == FD_LEVEL) | |
| 621 { | |
| 622 use_level = TRUE; | |
| 623 if (level >= curwin->w_p_fdl) | |
| 624 closed = TRUE; | |
| 625 } | |
| 626 else if (fp->fd_flags == FD_CLOSED) | |
| 627 closed = TRUE; | |
| 628 ++level; | |
| 629 } | |
| 630 else | |
| 631 { | |
| 632 /* This fold and new fold overlap: Insert here and move some folds | |
| 633 * inside the new fold. */ | |
| 634 break; | |
| 635 } | |
| 636 } | |
| 637 | |
| 638 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 639 if (ga_grow(gap, 1) == OK) | |
| 640 { | |
| 641 fp = (fold_T *)gap->ga_data + i; | |
| 642 ga_init2(&fold_ga, (int)sizeof(fold_T), 10); | |
| 643 | |
| 644 /* Count number of folds that will be contained in the new fold. */ | |
| 645 for (cont = 0; i + cont < gap->ga_len; ++cont) | |
| 646 if (fp[cont].fd_top > end_rel) | |
| 647 break; | |
| 648 if (cont > 0 && ga_grow(&fold_ga, cont) == OK) | |
| 649 { | |
| 650 /* If the first fold starts before the new fold, let the new fold | |
| 651 * start there. Otherwise the existing fold would change. */ | |
| 652 if (start_rel > fp->fd_top) | |
| 653 start_rel = fp->fd_top; | |
| 654 | |
| 655 /* When last contained fold isn't completely contained, adjust end | |
| 656 * of new fold. */ | |
| 657 if (end_rel < fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1) | |
| 658 end_rel = fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1; | |
| 659 /* Move contained folds to inside new fold. */ | |
| 660 mch_memmove(fold_ga.ga_data, fp, sizeof(fold_T) * cont); | |
| 661 fold_ga.ga_len += cont; | |
| 662 i += cont; | |
| 663 | |
| 664 /* Adjust line numbers in contained folds to be relative to the | |
| 665 * new fold. */ | |
| 666 for (j = 0; j < cont; ++j) | |
| 667 ((fold_T *)fold_ga.ga_data)[j].fd_top -= start_rel; | |
| 668 } | |
| 669 /* Move remaining entries to after the new fold. */ | |
| 670 if (i < gap->ga_len) | |
| 671 mch_memmove(fp + 1, (fold_T *)gap->ga_data + i, | |
| 672 sizeof(fold_T) * (gap->ga_len - i)); | |
| 673 gap->ga_len = gap->ga_len + 1 - cont; | |
| 674 | |
| 675 /* insert new fold */ | |
| 676 fp->fd_nested = fold_ga; | |
| 677 fp->fd_top = start_rel; | |
| 678 fp->fd_len = end_rel - start_rel + 1; | |
| 679 | |
| 680 /* We want the new fold to be closed. If it would remain open because | |
| 681 * of using 'foldlevel', need to adjust fd_flags of containing folds. | |
| 682 */ | |
| 683 if (use_level && !closed && level < curwin->w_p_fdl) | |
| 684 closeFold(start, 1L); | |
| 685 if (!use_level) | |
| 686 curwin->w_fold_manual = TRUE; | |
| 687 fp->fd_flags = FD_CLOSED; | |
| 688 fp->fd_small = MAYBE; | |
| 689 | |
| 690 /* redraw */ | |
| 691 changed_window_setting(); | |
| 692 } | |
| 693 } | |
| 694 | |
| 695 /* deleteFold() {{{2 */ | |
| 696 /* | |
| 697 * Delete a fold at line "start" in the current window. | |
| 698 * When "end" is not 0, delete all folds from "start" to "end". | |
| 699 * When "recursive" is TRUE delete recursively. | |
| 700 */ | |
| 701 void | |
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702 deleteFold( |
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703 linenr_T start, |
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704 linenr_T end, |
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705 int recursive, |
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706 int had_visual) /* TRUE when Visual selection used */ |
| 7 | 707 { |
| 708 garray_T *gap; | |
| 709 fold_T *fp; | |
| 710 garray_T *found_ga; | |
| 711 fold_T *found_fp = NULL; | |
| 712 linenr_T found_off = 0; | |
| 1780 | 713 int use_level; |
| 7 | 714 int maybe_small = FALSE; |
| 715 int level = 0; | |
| 716 linenr_T lnum = start; | |
| 717 linenr_T lnum_off; | |
| 718 int did_one = FALSE; | |
| 719 linenr_T first_lnum = MAXLNUM; | |
| 720 linenr_T last_lnum = 0; | |
| 721 | |
| 722 checkupdate(curwin); | |
| 723 | |
| 724 while (lnum <= end) | |
| 725 { | |
| 726 /* Find the deepest fold for "start". */ | |
| 727 gap = &curwin->w_folds; | |
| 728 found_ga = NULL; | |
| 729 lnum_off = 0; | |
| 1780 | 730 use_level = FALSE; |
| 7 | 731 for (;;) |
| 732 { | |
| 733 if (!foldFind(gap, lnum - lnum_off, &fp)) | |
| 734 break; | |
| 735 /* lnum is inside this fold, remember info */ | |
| 736 found_ga = gap; | |
| 737 found_fp = fp; | |
| 738 found_off = lnum_off; | |
| 739 | |
| 740 /* if "lnum" is folded, don't check nesting */ | |
| 741 if (check_closed(curwin, fp, &use_level, level, | |
| 742 &maybe_small, lnum_off)) | |
| 743 break; | |
| 744 | |
| 745 /* check nested folds */ | |
| 746 gap = &fp->fd_nested; | |
| 747 lnum_off += fp->fd_top; | |
| 748 ++level; | |
| 749 } | |
| 750 if (found_ga == NULL) | |
| 751 { | |
| 752 ++lnum; | |
| 753 } | |
| 754 else | |
| 755 { | |
| 756 lnum = found_fp->fd_top + found_fp->fd_len + found_off; | |
| 757 | |
| 758 if (foldmethodIsManual(curwin)) | |
| 759 deleteFoldEntry(found_ga, | |
| 760 (int)(found_fp - (fold_T *)found_ga->ga_data), recursive); | |
| 761 else | |
| 762 { | |
| 1780 | 763 if (first_lnum > found_fp->fd_top + found_off) |
| 764 first_lnum = found_fp->fd_top + found_off; | |
| 765 if (last_lnum < lnum) | |
| 7 | 766 last_lnum = lnum; |
| 1780 | 767 if (!did_one) |
| 768 parseMarker(curwin); | |
| 7 | 769 deleteFoldMarkers(found_fp, recursive, found_off); |
| 770 } | |
| 1780 | 771 did_one = TRUE; |
| 7 | 772 |
| 773 /* redraw window */ | |
| 774 changed_window_setting(); | |
| 775 } | |
| 776 } | |
| 777 if (!did_one) | |
| 778 { | |
| 779 EMSG(_(e_nofold)); | |
| 780 /* Force a redraw to remove the Visual highlighting. */ | |
| 781 if (had_visual) | |
| 782 redraw_curbuf_later(INVERTED); | |
| 783 } | |
| 1780 | 784 else |
| 785 /* Deleting markers may make cursor column invalid. */ | |
| 786 check_cursor_col(); | |
| 787 | |
| 7 | 788 if (last_lnum > 0) |
| 789 changed_lines(first_lnum, (colnr_T)0, last_lnum, 0L); | |
| 790 } | |
| 791 | |
| 792 /* clearFolding() {{{2 */ | |
| 793 /* | |
| 794 * Remove all folding for window "win". | |
| 795 */ | |
| 796 void | |
|
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|
797 clearFolding(win_T *win) |
| 7 | 798 { |
| 799 deleteFoldRecurse(&win->w_folds); | |
| 800 win->w_foldinvalid = FALSE; | |
| 801 } | |
| 802 | |
| 803 /* foldUpdate() {{{2 */ | |
| 804 /* | |
| 805 * Update folds for changes in the buffer of a window. | |
| 806 * Note that inserted/deleted lines must have already been taken care of by | |
| 807 * calling foldMarkAdjust(). | |
| 808 * The changes in lines from top to bot (inclusive). | |
| 809 */ | |
| 810 void | |
|
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811 foldUpdate(win_T *wp, linenr_T top, linenr_T bot) |
| 7 | 812 { |
| 813 fold_T *fp; | |
| 814 | |
|
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815 if (disable_fold_update > 0) |
|
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816 return; |
|
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|
817 |
| 7 | 818 /* Mark all folds from top to bot as maybe-small. */ |
| 6755 | 819 (void)foldFind(&wp->w_folds, top, &fp); |
| 820 while (fp < (fold_T *)wp->w_folds.ga_data + wp->w_folds.ga_len | |
| 7 | 821 && fp->fd_top < bot) |
| 822 { | |
| 823 fp->fd_small = MAYBE; | |
| 824 ++fp; | |
| 825 } | |
| 826 | |
| 827 if (foldmethodIsIndent(wp) | |
| 828 || foldmethodIsExpr(wp) | |
| 829 || foldmethodIsMarker(wp) | |
| 830 #ifdef FEAT_DIFF | |
| 831 || foldmethodIsDiff(wp) | |
| 832 #endif | |
| 833 || foldmethodIsSyntax(wp)) | |
| 1424 | 834 { |
| 835 int save_got_int = got_int; | |
| 836 | |
| 837 /* reset got_int here, otherwise it won't work */ | |
| 838 got_int = FALSE; | |
| 7 | 839 foldUpdateIEMS(wp, top, bot); |
| 1424 | 840 got_int |= save_got_int; |
| 841 } | |
| 7 | 842 } |
| 843 | |
| 844 /* foldUpdateAll() {{{2 */ | |
| 845 /* | |
| 846 * Update all lines in a window for folding. | |
| 847 * Used when a fold setting changes or after reloading the buffer. | |
| 848 * The actual updating is postponed until fold info is used, to avoid doing | |
| 849 * every time a setting is changed or a syntax item is added. | |
| 850 */ | |
| 851 void | |
|
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852 foldUpdateAll(win_T *win) |
| 7 | 853 { |
| 854 win->w_foldinvalid = TRUE; | |
| 855 redraw_win_later(win, NOT_VALID); | |
| 856 } | |
| 857 | |
| 858 /* foldMoveTo() {{{2 */ | |
| 859 /* | |
| 860 * If "updown" is FALSE: Move to the start or end of the fold. | |
| 861 * If "updown" is TRUE: move to fold at the same level. | |
| 862 * If not moved return FAIL. | |
| 863 */ | |
| 864 int | |
|
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|
865 foldMoveTo( |
|
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866 int updown, |
|
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867 int dir, /* FORWARD or BACKWARD */ |
|
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868 long count) |
| 7 | 869 { |
| 870 long n; | |
| 871 int retval = FAIL; | |
| 872 linenr_T lnum_off; | |
| 873 linenr_T lnum_found; | |
| 874 linenr_T lnum; | |
| 875 int use_level; | |
| 876 int maybe_small; | |
| 877 garray_T *gap; | |
| 878 fold_T *fp; | |
| 879 int level; | |
| 880 int last; | |
| 881 | |
| 36 | 882 checkupdate(curwin); |
| 883 | |
| 7 | 884 /* Repeat "count" times. */ |
| 885 for (n = 0; n < count; ++n) | |
| 886 { | |
| 887 /* Find nested folds. Stop when a fold is closed. The deepest fold | |
| 888 * that moves the cursor is used. */ | |
| 889 lnum_off = 0; | |
| 890 gap = &curwin->w_folds; | |
| 891 use_level = FALSE; | |
| 892 maybe_small = FALSE; | |
| 893 lnum_found = curwin->w_cursor.lnum; | |
| 894 level = 0; | |
| 895 last = FALSE; | |
| 896 for (;;) | |
| 897 { | |
| 898 if (!foldFind(gap, curwin->w_cursor.lnum - lnum_off, &fp)) | |
| 899 { | |
| 900 if (!updown) | |
| 901 break; | |
| 902 | |
| 903 /* When moving up, consider a fold above the cursor; when | |
| 904 * moving down consider a fold below the cursor. */ | |
| 905 if (dir == FORWARD) | |
| 906 { | |
| 907 if (fp - (fold_T *)gap->ga_data >= gap->ga_len) | |
| 908 break; | |
| 909 --fp; | |
| 910 } | |
| 911 else | |
| 912 { | |
| 913 if (fp == (fold_T *)gap->ga_data) | |
| 914 break; | |
| 915 } | |
| 916 /* don't look for contained folds, they will always move | |
| 917 * the cursor too far. */ | |
| 918 last = TRUE; | |
| 919 } | |
| 920 | |
| 921 if (!last) | |
| 922 { | |
| 923 /* Check if this fold is closed. */ | |
| 924 if (check_closed(curwin, fp, &use_level, level, | |
| 925 &maybe_small, lnum_off)) | |
| 926 last = TRUE; | |
| 927 | |
| 928 /* "[z" and "]z" stop at closed fold */ | |
| 929 if (last && !updown) | |
| 930 break; | |
| 931 } | |
| 932 | |
| 933 if (updown) | |
| 934 { | |
| 935 if (dir == FORWARD) | |
| 936 { | |
| 937 /* to start of next fold if there is one */ | |
| 938 if (fp + 1 - (fold_T *)gap->ga_data < gap->ga_len) | |
| 939 { | |
| 940 lnum = fp[1].fd_top + lnum_off; | |
| 941 if (lnum > curwin->w_cursor.lnum) | |
| 942 lnum_found = lnum; | |
| 943 } | |
| 944 } | |
| 945 else | |
| 946 { | |
| 947 /* to end of previous fold if there is one */ | |
| 948 if (fp > (fold_T *)gap->ga_data) | |
| 949 { | |
| 950 lnum = fp[-1].fd_top + lnum_off + fp[-1].fd_len - 1; | |
| 951 if (lnum < curwin->w_cursor.lnum) | |
| 952 lnum_found = lnum; | |
| 953 } | |
| 954 } | |
| 955 } | |
| 956 else | |
| 957 { | |
| 958 /* Open fold found, set cursor to its start/end and then check | |
| 959 * nested folds. */ | |
| 960 if (dir == FORWARD) | |
| 961 { | |
| 962 lnum = fp->fd_top + lnum_off + fp->fd_len - 1; | |
| 963 if (lnum > curwin->w_cursor.lnum) | |
| 964 lnum_found = lnum; | |
| 965 } | |
| 966 else | |
| 967 { | |
| 968 lnum = fp->fd_top + lnum_off; | |
| 969 if (lnum < curwin->w_cursor.lnum) | |
| 970 lnum_found = lnum; | |
| 971 } | |
| 972 } | |
| 973 | |
| 974 if (last) | |
| 975 break; | |
| 976 | |
| 977 /* Check nested folds (if any). */ | |
| 978 gap = &fp->fd_nested; | |
| 979 lnum_off += fp->fd_top; | |
| 980 ++level; | |
| 981 } | |
| 982 if (lnum_found != curwin->w_cursor.lnum) | |
| 983 { | |
| 984 if (retval == FAIL) | |
| 985 setpcmark(); | |
| 986 curwin->w_cursor.lnum = lnum_found; | |
| 987 curwin->w_cursor.col = 0; | |
| 988 retval = OK; | |
| 989 } | |
| 990 else | |
| 991 break; | |
| 992 } | |
| 993 | |
| 994 return retval; | |
| 995 } | |
| 996 | |
| 997 /* foldInitWin() {{{2 */ | |
| 998 /* | |
| 999 * Init the fold info in a new window. | |
| 1000 */ | |
| 1001 void | |
|
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1002 foldInitWin(win_T *new_win) |
| 7 | 1003 { |
| 3263 | 1004 ga_init2(&new_win->w_folds, (int)sizeof(fold_T), 10); |
| 7 | 1005 } |
| 1006 | |
| 1007 /* find_wl_entry() {{{2 */ | |
| 1008 /* | |
| 1009 * Find an entry in the win->w_lines[] array for buffer line "lnum". | |
| 1010 * Only valid entries are considered (for entries where wl_valid is FALSE the | |
| 1011 * line number can be wrong). | |
| 1012 * Returns index of entry or -1 if not found. | |
| 1013 */ | |
| 1014 int | |
|
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1015 find_wl_entry(win_T *win, linenr_T lnum) |
| 7 | 1016 { |
| 1017 int i; | |
| 1018 | |
|
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1019 for (i = 0; i < win->w_lines_valid; ++i) |
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1020 if (win->w_lines[i].wl_valid) |
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1021 { |
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1022 if (lnum < win->w_lines[i].wl_lnum) |
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1023 return -1; |
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1024 if (lnum <= win->w_lines[i].wl_lastlnum) |
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1025 return i; |
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1026 } |
| 7 | 1027 return -1; |
| 1028 } | |
| 1029 | |
| 1030 /* foldAdjustVisual() {{{2 */ | |
| 1031 /* | |
| 1032 * Adjust the Visual area to include any fold at the start or end completely. | |
| 1033 */ | |
| 1034 void | |
|
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1035 foldAdjustVisual(void) |
| 7 | 1036 { |
| 1037 pos_T *start, *end; | |
| 1038 char_u *ptr; | |
| 1039 | |
| 1040 if (!VIsual_active || !hasAnyFolding(curwin)) | |
| 1041 return; | |
| 1042 | |
|
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1043 if (LTOREQ_POS(VIsual, curwin->w_cursor)) |
| 7 | 1044 { |
| 1045 start = &VIsual; | |
| 1046 end = &curwin->w_cursor; | |
| 1047 } | |
| 1048 else | |
| 1049 { | |
| 1050 start = &curwin->w_cursor; | |
| 1051 end = &VIsual; | |
| 1052 } | |
| 1053 if (hasFolding(start->lnum, &start->lnum, NULL)) | |
| 1054 start->col = 0; | |
| 1055 if (hasFolding(end->lnum, NULL, &end->lnum)) | |
| 1056 { | |
| 1057 ptr = ml_get(end->lnum); | |
| 1058 end->col = (colnr_T)STRLEN(ptr); | |
| 1059 if (end->col > 0 && *p_sel == 'o') | |
| 1060 --end->col; | |
| 1061 #ifdef FEAT_MBYTE | |
| 1062 /* prevent cursor from moving on the trail byte */ | |
| 1063 if (has_mbyte) | |
| 1064 mb_adjust_cursor(); | |
| 1065 #endif | |
| 1066 } | |
| 1067 } | |
| 1068 | |
| 1069 /* cursor_foldstart() {{{2 */ | |
| 1070 /* | |
| 1071 * Move the cursor to the first line of a closed fold. | |
| 1072 */ | |
| 1073 void | |
|
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1074 foldAdjustCursor(void) |
| 7 | 1075 { |
| 1076 (void)hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL); | |
| 1077 } | |
| 1078 | |
|
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1079 /* foldMoveRange() {{{2 */ |
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1080 void |
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1081 foldMoveRange(garray_T *gap, linenr_T line1, linenr_T line2, linenr_T dest) |
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1082 { |
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1083 foldMoveRange_int(gap, line1, line2, dest); |
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1084 } |
| 7 | 1085 /* Internal functions for "fold_T" {{{1 */ |
| 1086 /* cloneFoldGrowArray() {{{2 */ | |
| 1087 /* | |
| 1088 * Will "clone" (i.e deep copy) a garray_T of folds. | |
| 1089 * | |
| 1090 * Return FAIL if the operation cannot be completed, otherwise OK. | |
| 1091 */ | |
| 1092 void | |
|
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1093 cloneFoldGrowArray(garray_T *from, garray_T *to) |
| 7 | 1094 { |
| 1095 int i; | |
| 1096 fold_T *from_p; | |
| 1097 fold_T *to_p; | |
| 1098 | |
| 1099 ga_init2(to, from->ga_itemsize, from->ga_growsize); | |
| 1100 if (from->ga_len == 0 || ga_grow(to, from->ga_len) == FAIL) | |
| 1101 return; | |
| 1102 | |
| 1103 from_p = (fold_T *)from->ga_data; | |
| 1104 to_p = (fold_T *)to->ga_data; | |
| 1105 | |
| 1106 for (i = 0; i < from->ga_len; i++) | |
| 1107 { | |
| 1108 to_p->fd_top = from_p->fd_top; | |
| 1109 to_p->fd_len = from_p->fd_len; | |
| 1110 to_p->fd_flags = from_p->fd_flags; | |
| 1111 to_p->fd_small = from_p->fd_small; | |
| 1112 cloneFoldGrowArray(&from_p->fd_nested, &to_p->fd_nested); | |
| 1113 ++to->ga_len; | |
| 1114 ++from_p; | |
| 1115 ++to_p; | |
| 1116 } | |
| 1117 } | |
| 1118 | |
| 1119 /* foldFind() {{{2 */ | |
| 1120 /* | |
| 1121 * Search for line "lnum" in folds of growarray "gap". | |
| 1122 * Set *fpp to the fold struct for the fold that contains "lnum" or | |
| 1123 * the first fold below it (careful: it can be beyond the end of the array!). | |
| 1124 * Returns FALSE when there is no fold that contains "lnum". | |
| 1125 */ | |
| 1126 static int | |
|
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1127 foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp) |
| 7 | 1128 { |
| 1129 linenr_T low, high; | |
| 1130 fold_T *fp; | |
| 1131 int i; | |
| 1132 | |
| 1133 /* | |
| 1134 * Perform a binary search. | |
| 1135 * "low" is lowest index of possible match. | |
| 1136 * "high" is highest index of possible match. | |
| 1137 */ | |
| 1138 fp = (fold_T *)gap->ga_data; | |
| 1139 low = 0; | |
| 1140 high = gap->ga_len - 1; | |
| 1141 while (low <= high) | |
| 1142 { | |
| 1143 i = (low + high) / 2; | |
| 1144 if (fp[i].fd_top > lnum) | |
| 1145 /* fold below lnum, adjust high */ | |
| 1146 high = i - 1; | |
| 1147 else if (fp[i].fd_top + fp[i].fd_len <= lnum) | |
| 1148 /* fold above lnum, adjust low */ | |
| 1149 low = i + 1; | |
| 1150 else | |
| 1151 { | |
| 1152 /* lnum is inside this fold */ | |
| 1153 *fpp = fp + i; | |
| 1154 return TRUE; | |
| 1155 } | |
| 1156 } | |
| 1157 *fpp = fp + low; | |
| 1158 return FALSE; | |
| 1159 } | |
| 1160 | |
| 1161 /* foldLevelWin() {{{2 */ | |
| 1162 /* | |
| 1163 * Return fold level at line number "lnum" in window "wp". | |
| 1164 */ | |
| 1165 static int | |
|
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1166 foldLevelWin(win_T *wp, linenr_T lnum) |
| 7 | 1167 { |
| 1168 fold_T *fp; | |
| 1169 linenr_T lnum_rel = lnum; | |
| 1170 int level = 0; | |
| 1171 garray_T *gap; | |
| 1172 | |
| 1173 /* Recursively search for a fold that contains "lnum". */ | |
| 1174 gap = &wp->w_folds; | |
| 1175 for (;;) | |
| 1176 { | |
| 1177 if (!foldFind(gap, lnum_rel, &fp)) | |
| 1178 break; | |
| 1179 /* Check nested folds. Line number is relative to containing fold. */ | |
| 1180 gap = &fp->fd_nested; | |
| 1181 lnum_rel -= fp->fd_top; | |
| 1182 ++level; | |
| 1183 } | |
| 1184 | |
| 1185 return level; | |
| 1186 } | |
| 1187 | |
| 1188 /* checkupdate() {{{2 */ | |
| 1189 /* | |
| 1190 * Check if the folds in window "wp" are invalid and update them if needed. | |
| 1191 */ | |
| 1192 static void | |
|
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1193 checkupdate(win_T *wp) |
| 7 | 1194 { |
| 1195 if (wp->w_foldinvalid) | |
| 1196 { | |
| 1197 foldUpdate(wp, (linenr_T)1, (linenr_T)MAXLNUM); /* will update all */ | |
| 1198 wp->w_foldinvalid = FALSE; | |
| 1199 } | |
| 1200 } | |
| 1201 | |
| 1202 /* setFoldRepeat() {{{2 */ | |
| 1203 /* | |
| 1204 * Open or close fold for current window at line "lnum". | |
| 1205 * Repeat "count" times. | |
| 1206 */ | |
| 1207 static void | |
|
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1208 setFoldRepeat(linenr_T lnum, long count, int do_open) |
| 7 | 1209 { |
| 1210 int done; | |
| 1211 long n; | |
| 1212 | |
| 1213 for (n = 0; n < count; ++n) | |
| 1214 { | |
| 1215 done = DONE_NOTHING; | |
| 1757 | 1216 (void)setManualFold(lnum, do_open, FALSE, &done); |
| 7 | 1217 if (!(done & DONE_ACTION)) |
| 1218 { | |
| 1219 /* Only give an error message when no fold could be opened. */ | |
| 1220 if (n == 0 && !(done & DONE_FOLD)) | |
| 1221 EMSG(_(e_nofold)); | |
| 1222 break; | |
| 1223 } | |
| 1224 } | |
| 1225 } | |
| 1226 | |
| 1227 /* setManualFold() {{{2 */ | |
| 1228 /* | |
| 1229 * Open or close the fold in the current window which contains "lnum". | |
| 1230 * Also does this for other windows in diff mode when needed. | |
| 1231 */ | |
| 1232 static linenr_T | |
|
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1233 setManualFold( |
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1234 linenr_T lnum, |
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1235 int opening, /* TRUE when opening, FALSE when closing */ |
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1236 int recurse, /* TRUE when closing/opening recursive */ |
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1237 int *donep) |
| 7 | 1238 { |
| 1239 #ifdef FEAT_DIFF | |
| 1240 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
| 1241 { | |
| 1242 win_T *wp; | |
| 1243 linenr_T dlnum; | |
| 1244 | |
| 1245 /* | |
| 1246 * Do the same operation in other windows in diff mode. Calculate the | |
| 1247 * line number from the diffs. | |
| 1248 */ | |
| 1249 FOR_ALL_WINDOWS(wp) | |
| 1250 { | |
| 1251 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
| 1252 { | |
| 1253 dlnum = diff_lnum_win(curwin->w_cursor.lnum, wp); | |
| 1254 if (dlnum != 0) | |
| 1255 (void)setManualFoldWin(wp, dlnum, opening, recurse, NULL); | |
| 1256 } | |
| 1257 } | |
| 1258 } | |
| 1259 #endif | |
| 1260 | |
| 1261 return setManualFoldWin(curwin, lnum, opening, recurse, donep); | |
| 1262 } | |
| 1263 | |
| 1264 /* setManualFoldWin() {{{2 */ | |
| 1265 /* | |
| 1266 * Open or close the fold in window "wp" which contains "lnum". | |
| 1267 * "donep", when not NULL, points to flag that is set to DONE_FOLD when some | |
| 1268 * fold was found and to DONE_ACTION when some fold was opened or closed. | |
| 1269 * When "donep" is NULL give an error message when no fold was found for | |
| 1270 * "lnum", but only if "wp" is "curwin". | |
| 1271 * Return the line number of the next line that could be closed. | |
| 1272 * It's only valid when "opening" is TRUE! | |
| 1273 */ | |
| 1274 static linenr_T | |
|
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1275 setManualFoldWin( |
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1276 win_T *wp, |
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1277 linenr_T lnum, |
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1278 int opening, /* TRUE when opening, FALSE when closing */ |
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1279 int recurse, /* TRUE when closing/opening recursive */ |
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1280 int *donep) |
| 7 | 1281 { |
| 1282 fold_T *fp; | |
| 1283 fold_T *fp2; | |
| 1284 fold_T *found = NULL; | |
| 1285 int j; | |
| 1286 int level = 0; | |
| 1287 int use_level = FALSE; | |
| 1288 int found_fold = FALSE; | |
| 1289 garray_T *gap; | |
| 1290 linenr_T next = MAXLNUM; | |
| 1291 linenr_T off = 0; | |
| 1292 int done = 0; | |
| 1293 | |
| 1294 checkupdate(wp); | |
| 1295 | |
| 1296 /* | |
| 1297 * Find the fold, open or close it. | |
| 1298 */ | |
| 1299 gap = &wp->w_folds; | |
| 1300 for (;;) | |
| 1301 { | |
| 1302 if (!foldFind(gap, lnum, &fp)) | |
| 1303 { | |
| 1304 /* If there is a following fold, continue there next time. */ | |
| 1305 if (fp < (fold_T *)gap->ga_data + gap->ga_len) | |
| 1306 next = fp->fd_top + off; | |
| 1307 break; | |
| 1308 } | |
| 1309 | |
| 1310 /* lnum is inside this fold */ | |
| 1311 found_fold = TRUE; | |
| 1312 | |
| 1313 /* If there is a following fold, continue there next time. */ | |
| 1314 if (fp + 1 < (fold_T *)gap->ga_data + gap->ga_len) | |
| 1315 next = fp[1].fd_top + off; | |
| 1316 | |
| 1317 /* Change from level-dependent folding to manual. */ | |
| 1318 if (use_level || fp->fd_flags == FD_LEVEL) | |
| 1319 { | |
| 1320 use_level = TRUE; | |
| 1321 if (level >= wp->w_p_fdl) | |
| 1322 fp->fd_flags = FD_CLOSED; | |
| 1323 else | |
| 1324 fp->fd_flags = FD_OPEN; | |
| 1325 fp2 = (fold_T *)fp->fd_nested.ga_data; | |
| 1326 for (j = 0; j < fp->fd_nested.ga_len; ++j) | |
| 1327 fp2[j].fd_flags = FD_LEVEL; | |
| 1328 } | |
| 1329 | |
| 1330 /* Simple case: Close recursively means closing the fold. */ | |
| 1331 if (!opening && recurse) | |
| 1332 { | |
| 1333 if (fp->fd_flags != FD_CLOSED) | |
| 1334 { | |
| 1335 done |= DONE_ACTION; | |
| 1336 fp->fd_flags = FD_CLOSED; | |
| 1337 } | |
| 1338 } | |
| 1339 else if (fp->fd_flags == FD_CLOSED) | |
| 1340 { | |
| 1341 /* When opening, open topmost closed fold. */ | |
| 1342 if (opening) | |
| 1343 { | |
| 1344 fp->fd_flags = FD_OPEN; | |
| 1345 done |= DONE_ACTION; | |
| 1346 if (recurse) | |
| 1347 foldOpenNested(fp); | |
| 1348 } | |
| 1349 break; | |
| 1350 } | |
| 1351 | |
| 1352 /* fold is open, check nested folds */ | |
| 1353 found = fp; | |
| 1354 gap = &fp->fd_nested; | |
| 1355 lnum -= fp->fd_top; | |
| 1356 off += fp->fd_top; | |
| 1357 ++level; | |
| 1358 } | |
| 1359 if (found_fold) | |
| 1360 { | |
| 1361 /* When closing and not recurse, close deepest open fold. */ | |
| 1362 if (!opening && found != NULL) | |
| 1363 { | |
| 1364 found->fd_flags = FD_CLOSED; | |
| 1365 done |= DONE_ACTION; | |
| 1366 } | |
| 1367 wp->w_fold_manual = TRUE; | |
| 1368 if (done & DONE_ACTION) | |
| 1369 changed_window_setting_win(wp); | |
| 1370 done |= DONE_FOLD; | |
| 1371 } | |
| 1372 else if (donep == NULL && wp == curwin) | |
| 1373 EMSG(_(e_nofold)); | |
| 1374 | |
| 1375 if (donep != NULL) | |
| 1376 *donep |= done; | |
| 1377 | |
| 1378 return next; | |
| 1379 } | |
| 1380 | |
| 1381 /* foldOpenNested() {{{2 */ | |
| 1382 /* | |
| 1383 * Open all nested folds in fold "fpr" recursively. | |
| 1384 */ | |
| 1385 static void | |
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1386 foldOpenNested(fold_T *fpr) |
| 7 | 1387 { |
| 1388 int i; | |
| 1389 fold_T *fp; | |
| 1390 | |
| 1391 fp = (fold_T *)fpr->fd_nested.ga_data; | |
| 1392 for (i = 0; i < fpr->fd_nested.ga_len; ++i) | |
| 1393 { | |
| 1394 foldOpenNested(&fp[i]); | |
| 1395 fp[i].fd_flags = FD_OPEN; | |
| 1396 } | |
| 1397 } | |
| 1398 | |
| 1399 /* deleteFoldEntry() {{{2 */ | |
| 1400 /* | |
| 1401 * Delete fold "idx" from growarray "gap". | |
| 1402 * When "recursive" is TRUE also delete all the folds contained in it. | |
| 1403 * When "recursive" is FALSE contained folds are moved one level up. | |
| 1404 */ | |
| 1405 static void | |
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1406 deleteFoldEntry(garray_T *gap, int idx, int recursive) |
| 7 | 1407 { |
| 1408 fold_T *fp; | |
| 1409 int i; | |
| 1410 long moved; | |
| 1411 fold_T *nfp; | |
| 1412 | |
| 1413 fp = (fold_T *)gap->ga_data + idx; | |
| 1414 if (recursive || fp->fd_nested.ga_len == 0) | |
| 1415 { | |
| 1416 /* recursively delete the contained folds */ | |
| 1417 deleteFoldRecurse(&fp->fd_nested); | |
| 1418 --gap->ga_len; | |
| 1419 if (idx < gap->ga_len) | |
| 1420 mch_memmove(fp, fp + 1, sizeof(fold_T) * (gap->ga_len - idx)); | |
| 1421 } | |
| 1422 else | |
| 1423 { | |
| 3028 | 1424 /* Move nested folds one level up, to overwrite the fold that is |
| 7 | 1425 * deleted. */ |
| 1426 moved = fp->fd_nested.ga_len; | |
| 1427 if (ga_grow(gap, (int)(moved - 1)) == OK) | |
| 1428 { | |
| 3028 | 1429 /* Get "fp" again, the array may have been reallocated. */ |
| 1430 fp = (fold_T *)gap->ga_data + idx; | |
| 1431 | |
| 7 | 1432 /* adjust fd_top and fd_flags for the moved folds */ |
| 1433 nfp = (fold_T *)fp->fd_nested.ga_data; | |
| 1434 for (i = 0; i < moved; ++i) | |
| 1435 { | |
| 1436 nfp[i].fd_top += fp->fd_top; | |
| 1437 if (fp->fd_flags == FD_LEVEL) | |
| 1438 nfp[i].fd_flags = FD_LEVEL; | |
| 1439 if (fp->fd_small == MAYBE) | |
| 1440 nfp[i].fd_small = MAYBE; | |
| 1441 } | |
| 1442 | |
| 1443 /* move the existing folds down to make room */ | |
| 3028 | 1444 if (idx + 1 < gap->ga_len) |
| 7 | 1445 mch_memmove(fp + moved, fp + 1, |
| 3028 | 1446 sizeof(fold_T) * (gap->ga_len - (idx + 1))); |
| 7 | 1447 /* move the contained folds one level up */ |
| 1448 mch_memmove(fp, nfp, (size_t)(sizeof(fold_T) * moved)); | |
| 1449 vim_free(nfp); | |
| 1450 gap->ga_len += moved - 1; | |
| 1451 } | |
| 1452 } | |
| 1453 } | |
| 1454 | |
| 1455 /* deleteFoldRecurse() {{{2 */ | |
| 1456 /* | |
| 1457 * Delete nested folds in a fold. | |
| 1458 */ | |
| 1459 void | |
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1460 deleteFoldRecurse(garray_T *gap) |
| 7 | 1461 { |
| 1462 int i; | |
| 1463 | |
| 1464 for (i = 0; i < gap->ga_len; ++i) | |
| 1465 deleteFoldRecurse(&(((fold_T *)(gap->ga_data))[i].fd_nested)); | |
| 1466 ga_clear(gap); | |
| 1467 } | |
| 1468 | |
| 1469 /* foldMarkAdjust() {{{2 */ | |
| 1470 /* | |
| 1471 * Update line numbers of folds for inserted/deleted lines. | |
| 1472 */ | |
| 1473 void | |
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1474 foldMarkAdjust( |
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1475 win_T *wp, |
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1476 linenr_T line1, |
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1477 linenr_T line2, |
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1478 long amount, |
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1479 long amount_after) |
| 7 | 1480 { |
| 1481 /* If deleting marks from line1 to line2, but not deleting all those | |
| 1482 * lines, set line2 so that only deleted lines have their folds removed. */ | |
| 1483 if (amount == MAXLNUM && line2 >= line1 && line2 - line1 >= -amount_after) | |
| 1484 line2 = line1 - amount_after - 1; | |
| 1485 /* If appending a line in Insert mode, it should be included in the fold | |
| 1486 * just above the line. */ | |
| 1487 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) | |
| 1488 --line1; | |
| 1489 foldMarkAdjustRecurse(&wp->w_folds, line1, line2, amount, amount_after); | |
| 1490 } | |
| 1491 | |
| 1492 /* foldMarkAdjustRecurse() {{{2 */ | |
| 1493 static void | |
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1494 foldMarkAdjustRecurse( |
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1495 garray_T *gap, |
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1496 linenr_T line1, |
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1497 linenr_T line2, |
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1498 long amount, |
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1499 long amount_after) |
| 7 | 1500 { |
| 1501 fold_T *fp; | |
| 1502 int i; | |
| 1503 linenr_T last; | |
| 1504 linenr_T top; | |
| 1505 | |
| 1506 /* In Insert mode an inserted line at the top of a fold is considered part | |
| 1507 * of the fold, otherwise it isn't. */ | |
| 1508 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) | |
| 1509 top = line1 + 1; | |
| 1510 else | |
| 1511 top = line1; | |
| 1512 | |
| 1513 /* Find the fold containing or just below "line1". */ | |
| 1514 (void)foldFind(gap, line1, &fp); | |
| 1515 | |
| 1516 /* | |
| 1517 * Adjust all folds below "line1" that are affected. | |
| 1518 */ | |
| 1519 for (i = (int)(fp - (fold_T *)gap->ga_data); i < gap->ga_len; ++i, ++fp) | |
| 1520 { | |
| 1521 /* | |
| 1522 * Check for these situations: | |
| 1523 * 1 2 3 | |
| 1524 * 1 2 3 | |
| 1525 * line1 2 3 4 5 | |
| 1526 * 2 3 4 5 | |
| 1527 * 2 3 4 5 | |
| 1528 * line2 2 3 4 5 | |
| 1529 * 3 5 6 | |
| 1530 * 3 5 6 | |
| 1531 */ | |
| 1532 | |
| 1533 last = fp->fd_top + fp->fd_len - 1; /* last line of fold */ | |
| 1534 | |
| 1535 /* 1. fold completely above line1: nothing to do */ | |
| 1536 if (last < line1) | |
| 1537 continue; | |
| 1538 | |
| 1539 /* 6. fold below line2: only adjust for amount_after */ | |
| 1540 if (fp->fd_top > line2) | |
| 1541 { | |
| 1542 if (amount_after == 0) | |
| 1543 break; | |
| 1544 fp->fd_top += amount_after; | |
| 1545 } | |
| 1546 else | |
| 1547 { | |
| 1548 if (fp->fd_top >= top && last <= line2) | |
| 1549 { | |
| 1550 /* 4. fold completely contained in range */ | |
| 1551 if (amount == MAXLNUM) | |
| 1552 { | |
| 1553 /* Deleting lines: delete the fold completely */ | |
| 1554 deleteFoldEntry(gap, i, TRUE); | |
| 1555 --i; /* adjust index for deletion */ | |
| 1556 --fp; | |
| 1557 } | |
| 1558 else | |
| 1559 fp->fd_top += amount; | |
| 1560 } | |
| 1561 else | |
| 1562 { | |
| 1563 if (fp->fd_top < top) | |
| 1564 { | |
| 1964 | 1565 /* 2 or 3: need to correct nested folds too */ |
| 1566 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, | |
| 1567 line2 - fp->fd_top, amount, amount_after); | |
| 7 | 1568 if (last <= line2) |
| 1569 { | |
| 1570 /* 2. fold contains line1, line2 is below fold */ | |
| 1571 if (amount == MAXLNUM) | |
| 1572 fp->fd_len = line1 - fp->fd_top; | |
| 1573 else | |
| 1574 fp->fd_len += amount; | |
| 1575 } | |
| 1576 else | |
| 1577 { | |
| 1578 /* 3. fold contains line1 and line2 */ | |
| 1579 fp->fd_len += amount_after; | |
| 1580 } | |
| 1581 } | |
| 1582 else | |
| 1583 { | |
| 1964 | 1584 /* 5. fold is below line1 and contains line2; need to |
| 1585 * correct nested folds too */ | |
| 7 | 1586 if (amount == MAXLNUM) |
| 1587 { | |
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1588 foldMarkAdjustRecurse(&fp->fd_nested, |
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1589 line1 - fp->fd_top, |
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1590 line2 - fp->fd_top, |
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1591 amount, |
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1592 amount_after + (fp->fd_top - top)); |
| 7 | 1593 fp->fd_len -= line2 - fp->fd_top + 1; |
| 1594 fp->fd_top = line1; | |
| 1595 } | |
| 1596 else | |
| 1597 { | |
|
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1598 foldMarkAdjustRecurse(&fp->fd_nested, |
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1599 line1 - fp->fd_top, |
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1600 line2 - fp->fd_top, |
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1601 amount, |
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1602 amount_after - amount); |
| 7 | 1603 fp->fd_len += amount_after - amount; |
| 1604 fp->fd_top += amount; | |
| 1605 } | |
| 1606 } | |
| 1607 } | |
| 1608 } | |
| 1609 } | |
| 1610 } | |
| 1611 | |
| 1612 /* getDeepestNesting() {{{2 */ | |
| 1613 /* | |
| 1614 * Get the lowest 'foldlevel' value that makes the deepest nested fold in the | |
| 1615 * current window open. | |
| 1616 */ | |
| 1617 int | |
|
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1618 getDeepestNesting(void) |
| 7 | 1619 { |
| 1620 checkupdate(curwin); | |
| 1621 return getDeepestNestingRecurse(&curwin->w_folds); | |
| 1622 } | |
| 1623 | |
| 1624 static int | |
|
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1625 getDeepestNestingRecurse(garray_T *gap) |
| 7 | 1626 { |
| 1627 int i; | |
| 1628 int level; | |
| 1629 int maxlevel = 0; | |
| 1630 fold_T *fp; | |
| 1631 | |
| 1632 fp = (fold_T *)gap->ga_data; | |
| 1633 for (i = 0; i < gap->ga_len; ++i) | |
| 1634 { | |
| 1635 level = getDeepestNestingRecurse(&fp[i].fd_nested) + 1; | |
| 1636 if (level > maxlevel) | |
| 1637 maxlevel = level; | |
| 1638 } | |
| 1639 | |
| 1640 return maxlevel; | |
| 1641 } | |
| 1642 | |
| 1643 /* check_closed() {{{2 */ | |
| 1644 /* | |
| 1645 * Check if a fold is closed and update the info needed to check nested folds. | |
| 1646 */ | |
| 1647 static int | |
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1648 check_closed( |
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1649 win_T *win, |
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1650 fold_T *fp, |
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1651 int *use_levelp, /* TRUE: outer fold had FD_LEVEL */ |
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1652 int level, /* folding depth */ |
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1653 int *maybe_smallp, /* TRUE: outer this had fd_small == MAYBE */ |
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1654 linenr_T lnum_off) /* line number offset for fp->fd_top */ |
| 7 | 1655 { |
| 1656 int closed = FALSE; | |
| 1657 | |
| 1658 /* Check if this fold is closed. If the flag is FD_LEVEL this | |
| 1659 * fold and all folds it contains depend on 'foldlevel'. */ | |
| 1660 if (*use_levelp || fp->fd_flags == FD_LEVEL) | |
| 1661 { | |
| 1662 *use_levelp = TRUE; | |
| 1663 if (level >= win->w_p_fdl) | |
| 1664 closed = TRUE; | |
| 1665 } | |
| 1666 else if (fp->fd_flags == FD_CLOSED) | |
| 1667 closed = TRUE; | |
| 1668 | |
| 1669 /* Small fold isn't closed anyway. */ | |
| 1670 if (fp->fd_small == MAYBE) | |
| 1671 *maybe_smallp = TRUE; | |
| 1672 if (closed) | |
| 1673 { | |
| 1674 if (*maybe_smallp) | |
| 1675 fp->fd_small = MAYBE; | |
| 1676 checkSmall(win, fp, lnum_off); | |
| 1677 if (fp->fd_small == TRUE) | |
| 1678 closed = FALSE; | |
| 1679 } | |
| 1680 return closed; | |
| 1681 } | |
| 1682 | |
| 1683 /* checkSmall() {{{2 */ | |
| 1684 /* | |
| 1685 * Update fd_small field of fold "fp". | |
| 1686 */ | |
| 1687 static void | |
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1688 checkSmall( |
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1689 win_T *wp, |
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1690 fold_T *fp, |
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1691 linenr_T lnum_off) /* offset for fp->fd_top */ |
| 7 | 1692 { |
| 1693 int count; | |
| 1694 int n; | |
| 1695 | |
| 1696 if (fp->fd_small == MAYBE) | |
| 1697 { | |
| 1698 /* Mark any nested folds to maybe-small */ | |
| 1699 setSmallMaybe(&fp->fd_nested); | |
| 1700 | |
| 1701 if (fp->fd_len > curwin->w_p_fml) | |
| 1702 fp->fd_small = FALSE; | |
| 1703 else | |
| 1704 { | |
| 1705 count = 0; | |
| 1706 for (n = 0; n < fp->fd_len; ++n) | |
| 1707 { | |
| 1708 count += plines_win_nofold(wp, fp->fd_top + lnum_off + n); | |
| 1709 if (count > curwin->w_p_fml) | |
| 1710 { | |
| 1711 fp->fd_small = FALSE; | |
| 1712 return; | |
| 1713 } | |
| 1714 } | |
| 1715 fp->fd_small = TRUE; | |
| 1716 } | |
| 1717 } | |
| 1718 } | |
| 1719 | |
| 1720 /* setSmallMaybe() {{{2 */ | |
| 1721 /* | |
| 1722 * Set small flags in "gap" to MAYBE. | |
| 1723 */ | |
| 1724 static void | |
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1725 setSmallMaybe(garray_T *gap) |
| 7 | 1726 { |
| 1727 int i; | |
| 1728 fold_T *fp; | |
| 1729 | |
| 1730 fp = (fold_T *)gap->ga_data; | |
| 1731 for (i = 0; i < gap->ga_len; ++i) | |
| 1732 fp[i].fd_small = MAYBE; | |
| 1733 } | |
| 1734 | |
| 1735 /* foldCreateMarkers() {{{2 */ | |
| 1736 /* | |
| 1737 * Create a fold from line "start" to line "end" (inclusive) in the current | |
| 1738 * window by adding markers. | |
| 1739 */ | |
| 1740 static void | |
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1741 foldCreateMarkers(linenr_T start, linenr_T end) |
| 7 | 1742 { |
| 1743 if (!curbuf->b_p_ma) | |
| 1744 { | |
| 1745 EMSG(_(e_modifiable)); | |
| 1746 return; | |
| 1747 } | |
| 1748 parseMarker(curwin); | |
| 1749 | |
| 1750 foldAddMarker(start, curwin->w_p_fmr, foldstartmarkerlen); | |
| 1751 foldAddMarker(end, foldendmarker, foldendmarkerlen); | |
| 1752 | |
| 1753 /* Update both changes here, to avoid all folds after the start are | |
| 1754 * changed when the start marker is inserted and the end isn't. */ | |
| 1755 changed_lines(start, (colnr_T)0, end, 0L); | |
| 1756 } | |
| 1757 | |
| 1758 /* foldAddMarker() {{{2 */ | |
| 1759 /* | |
| 1760 * Add "marker[markerlen]" in 'commentstring' to line "lnum". | |
| 1761 */ | |
| 1762 static void | |
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1763 foldAddMarker(linenr_T lnum, char_u *marker, int markerlen) |
| 7 | 1764 { |
| 1765 char_u *cms = curbuf->b_p_cms; | |
| 1766 char_u *line; | |
| 1767 int line_len; | |
| 1768 char_u *newline; | |
| 1769 char_u *p = (char_u *)strstr((char *)curbuf->b_p_cms, "%s"); | |
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1770 int line_is_comment = FALSE; |
| 7 | 1771 |
| 1772 /* Allocate a new line: old-line + 'cms'-start + marker + 'cms'-end */ | |
| 1773 line = ml_get(lnum); | |
| 1774 line_len = (int)STRLEN(line); | |
| 1775 | |
| 1776 if (u_save(lnum - 1, lnum + 1) == OK) | |
| 1777 { | |
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1778 #if defined(FEAT_COMMENTS) |
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1779 /* Check if the line ends with an unclosed comment */ |
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1780 (void)skip_comment(line, FALSE, FALSE, &line_is_comment); |
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1781 #endif |
| 7 | 1782 newline = alloc((unsigned)(line_len + markerlen + STRLEN(cms) + 1)); |
| 1783 if (newline == NULL) | |
| 1784 return; | |
| 1785 STRCPY(newline, line); | |
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1786 /* Append the marker to the end of the line */ |
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1787 if (p == NULL || line_is_comment) |
| 419 | 1788 vim_strncpy(newline + line_len, marker, markerlen); |
| 7 | 1789 else |
| 1790 { | |
| 1791 STRCPY(newline + line_len, cms); | |
| 1792 STRNCPY(newline + line_len + (p - cms), marker, markerlen); | |
| 1793 STRCPY(newline + line_len + (p - cms) + markerlen, p + 2); | |
| 1794 } | |
| 1795 | |
| 1796 ml_replace(lnum, newline, FALSE); | |
| 1797 } | |
| 1798 } | |
| 1799 | |
| 1800 /* deleteFoldMarkers() {{{2 */ | |
| 1801 /* | |
| 1802 * Delete the markers for a fold, causing it to be deleted. | |
| 1803 */ | |
| 1804 static void | |
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1805 deleteFoldMarkers( |
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1806 fold_T *fp, |
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1807 int recursive, |
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1808 linenr_T lnum_off) /* offset for fp->fd_top */ |
| 7 | 1809 { |
| 1810 int i; | |
| 1811 | |
| 1812 if (recursive) | |
| 1813 for (i = 0; i < fp->fd_nested.ga_len; ++i) | |
| 1814 deleteFoldMarkers((fold_T *)fp->fd_nested.ga_data + i, TRUE, | |
| 1815 lnum_off + fp->fd_top); | |
| 1816 foldDelMarker(fp->fd_top + lnum_off, curwin->w_p_fmr, foldstartmarkerlen); | |
| 1817 foldDelMarker(fp->fd_top + lnum_off + fp->fd_len - 1, | |
| 1818 foldendmarker, foldendmarkerlen); | |
| 1819 } | |
| 1820 | |
| 1821 /* foldDelMarker() {{{2 */ | |
| 1822 /* | |
| 1823 * Delete marker "marker[markerlen]" at the end of line "lnum". | |
| 1824 * Delete 'commentstring' if it matches. | |
| 1825 * If the marker is not found, there is no error message. Could a missing | |
| 1826 * close-marker. | |
| 1827 */ | |
| 1828 static void | |
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1829 foldDelMarker(linenr_T lnum, char_u *marker, int markerlen) |
| 7 | 1830 { |
| 1831 char_u *line; | |
| 1832 char_u *newline; | |
| 1833 char_u *p; | |
| 1834 int len; | |
| 1835 char_u *cms = curbuf->b_p_cms; | |
| 1836 char_u *cms2; | |
| 1837 | |
| 1838 line = ml_get(lnum); | |
| 1839 for (p = line; *p != NUL; ++p) | |
| 1840 if (STRNCMP(p, marker, markerlen) == 0) | |
| 1841 { | |
| 1842 /* Found the marker, include a digit if it's there. */ | |
| 1843 len = markerlen; | |
| 1844 if (VIM_ISDIGIT(p[len])) | |
| 1845 ++len; | |
| 1846 if (*cms != NUL) | |
| 1847 { | |
| 1848 /* Also delete 'commentstring' if it matches. */ | |
| 1849 cms2 = (char_u *)strstr((char *)cms, "%s"); | |
| 1850 if (p - line >= cms2 - cms | |
| 1851 && STRNCMP(p - (cms2 - cms), cms, cms2 - cms) == 0 | |
| 1852 && STRNCMP(p + len, cms2 + 2, STRLEN(cms2 + 2)) == 0) | |
| 1853 { | |
| 1854 p -= cms2 - cms; | |
| 1855 len += (int)STRLEN(cms) - 2; | |
| 1856 } | |
| 1857 } | |
| 1858 if (u_save(lnum - 1, lnum + 1) == OK) | |
| 1859 { | |
| 1860 /* Make new line: text-before-marker + text-after-marker */ | |
| 1861 newline = alloc((unsigned)(STRLEN(line) - len + 1)); | |
| 1862 if (newline != NULL) | |
| 1863 { | |
| 1864 STRNCPY(newline, line, p - line); | |
| 1865 STRCPY(newline + (p - line), p + len); | |
| 1866 ml_replace(lnum, newline, FALSE); | |
| 1867 } | |
| 1868 } | |
| 1869 break; | |
| 1870 } | |
| 1871 } | |
| 1872 | |
| 29 | 1873 /* get_foldtext() {{{2 */ |
| 1874 /* | |
| 1875 * Return the text for a closed fold at line "lnum", with last line "lnume". | |
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1876 * When 'foldtext' isn't set puts the result in "buf[FOLD_TEXT_LEN]". |
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1877 * Otherwise the result is in allocated memory. |
| 29 | 1878 */ |
| 1879 char_u * | |
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1880 get_foldtext( |
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1881 win_T *wp, |
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1882 linenr_T lnum, |
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1883 linenr_T lnume, |
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1884 foldinfo_T *foldinfo, |
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1885 char_u *buf) |
| 29 | 1886 { |
| 1887 char_u *text = NULL; | |
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1888 #ifdef FEAT_EVAL |
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1889 /* an error occurred when evaluating 'fdt' setting */ |
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1890 static int got_fdt_error = FALSE; |
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1891 int save_did_emsg = did_emsg; |
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1892 static win_T *last_wp = NULL; |
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1893 static linenr_T last_lnum = 0; |
| 29 | 1894 |
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1895 if (last_wp != wp || last_wp == NULL |
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1896 || last_lnum > lnum || last_lnum == 0) |
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1897 /* window changed, try evaluating foldtext setting once again */ |
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1898 got_fdt_error = FALSE; |
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1899 |
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1900 if (!got_fdt_error) |
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1901 /* a previous error should not abort evaluating 'foldexpr' */ |
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1902 did_emsg = FALSE; |
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1903 |
| 29 | 1904 if (*wp->w_p_fdt != NUL) |
| 1905 { | |
| 1981 | 1906 char_u dashes[MAX_LEVEL + 2]; |
| 29 | 1907 win_T *save_curwin; |
| 1908 int level; | |
| 1909 char_u *p; | |
| 1910 | |
| 1911 /* Set "v:foldstart" and "v:foldend". */ | |
| 1912 set_vim_var_nr(VV_FOLDSTART, lnum); | |
| 1913 set_vim_var_nr(VV_FOLDEND, lnume); | |
| 1914 | |
| 1915 /* Set "v:folddashes" to a string of "level" dashes. */ | |
| 1916 /* Set "v:foldlevel" to "level". */ | |
| 1917 level = foldinfo->fi_level; | |
| 1981 | 1918 if (level > (int)sizeof(dashes) - 1) |
| 1919 level = (int)sizeof(dashes) - 1; | |
| 29 | 1920 vim_memset(dashes, '-', (size_t)level); |
| 1921 dashes[level] = NUL; | |
| 1922 set_vim_var_string(VV_FOLDDASHES, dashes, -1); | |
| 1923 set_vim_var_nr(VV_FOLDLEVEL, (long)level); | |
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1924 |
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1925 /* skip evaluating foldtext on errors */ |
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1926 if (!got_fdt_error) |
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1927 { |
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1928 save_curwin = curwin; |
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1929 curwin = wp; |
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1930 curbuf = wp->w_buffer; |
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1931 |
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1932 ++emsg_silent; /* handle exceptions, but don't display errors */ |
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1933 text = eval_to_string_safe(wp->w_p_fdt, NULL, |
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1934 was_set_insecurely((char_u *)"foldtext", OPT_LOCAL)); |
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1935 --emsg_silent; |
| 29 | 1936 |
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1937 if (text == NULL || did_emsg) |
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1938 got_fdt_error = TRUE; |
| 29 | 1939 |
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1940 curwin = save_curwin; |
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1941 curbuf = curwin->w_buffer; |
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1942 } |
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1943 last_lnum = lnum; |
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1944 last_wp = wp; |
| 29 | 1945 set_vim_var_string(VV_FOLDDASHES, NULL, -1); |
| 1946 | |
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1947 if (!did_emsg && save_did_emsg) |
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1948 did_emsg = save_did_emsg; |
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1949 |
| 29 | 1950 if (text != NULL) |
| 1951 { | |
| 1952 /* Replace unprintable characters, if there are any. But | |
| 1953 * replace a TAB with a space. */ | |
| 1954 for (p = text; *p != NUL; ++p) | |
| 1955 { | |
| 1956 # ifdef FEAT_MBYTE | |
| 33 | 1957 int len; |
| 1958 | |
| 474 | 1959 if (has_mbyte && (len = (*mb_ptr2len)(p)) > 1) |
| 29 | 1960 { |
| 1961 if (!vim_isprintc((*mb_ptr2char)(p))) | |
| 1962 break; | |
| 1963 p += len - 1; | |
| 1964 } | |
| 1965 else | |
| 1966 # endif | |
| 1967 if (*p == TAB) | |
| 1968 *p = ' '; | |
| 1969 else if (ptr2cells(p) > 1) | |
| 1970 break; | |
| 1971 } | |
| 1972 if (*p != NUL) | |
| 1973 { | |
| 1974 p = transstr(text); | |
| 1975 vim_free(text); | |
| 1976 text = p; | |
| 1977 } | |
| 1978 } | |
| 1979 } | |
| 1980 if (text == NULL) | |
| 1981 #endif | |
| 1982 { | |
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1983 long count = (long)(lnume - lnum + 1); |
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1984 |
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1985 vim_snprintf((char *)buf, FOLD_TEXT_LEN, |
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1986 NGETTEXT("+--%3ld line folded ", |
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1987 "+--%3ld lines folded ", count), |
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1988 count); |
| 29 | 1989 text = buf; |
| 1990 } | |
| 1991 return text; | |
| 1992 } | |
| 1993 | |
| 7 | 1994 /* foldtext_cleanup() {{{2 */ |
| 1995 /* | |
| 1996 * Remove 'foldmarker' and 'commentstring' from "str" (in-place). | |
| 1997 */ | |
| 1998 void | |
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1999 foldtext_cleanup(char_u *str) |
| 7 | 2000 { |
| 2001 char_u *cms_start; /* first part or the whole comment */ | |
| 2002 int cms_slen = 0; /* length of cms_start */ | |
| 2003 char_u *cms_end; /* last part of the comment or NULL */ | |
| 2004 int cms_elen = 0; /* length of cms_end */ | |
| 2005 char_u *s; | |
| 45 | 2006 char_u *p; |
| 7 | 2007 int len; |
| 2008 int did1 = FALSE; | |
| 2009 int did2 = FALSE; | |
| 2010 | |
| 2011 /* Ignore leading and trailing white space in 'commentstring'. */ | |
| 2012 cms_start = skipwhite(curbuf->b_p_cms); | |
| 835 | 2013 cms_slen = (int)STRLEN(cms_start); |
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2014 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
| 7 | 2015 --cms_slen; |
| 2016 | |
| 2017 /* locate "%s" in 'commentstring', use the part before and after it. */ | |
| 2018 cms_end = (char_u *)strstr((char *)cms_start, "%s"); | |
| 2019 if (cms_end != NULL) | |
| 2020 { | |
| 835 | 2021 cms_elen = cms_slen - (int)(cms_end - cms_start); |
| 2022 cms_slen = (int)(cms_end - cms_start); | |
| 7 | 2023 |
| 2024 /* exclude white space before "%s" */ | |
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2025 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
| 7 | 2026 --cms_slen; |
| 2027 | |
| 2028 /* skip "%s" and white space after it */ | |
| 2029 s = skipwhite(cms_end + 2); | |
| 835 | 2030 cms_elen -= (int)(s - cms_end); |
| 7 | 2031 cms_end = s; |
| 2032 } | |
| 2033 parseMarker(curwin); | |
| 2034 | |
| 2035 for (s = str; *s != NUL; ) | |
| 2036 { | |
| 2037 len = 0; | |
| 2038 if (STRNCMP(s, curwin->w_p_fmr, foldstartmarkerlen) == 0) | |
| 45 | 2039 len = foldstartmarkerlen; |
| 2040 else if (STRNCMP(s, foldendmarker, foldendmarkerlen) == 0) | |
| 2041 len = foldendmarkerlen; | |
| 2042 if (len > 0) | |
| 7 | 2043 { |
| 2044 if (VIM_ISDIGIT(s[len])) | |
| 2045 ++len; | |
| 45 | 2046 |
| 2047 /* May remove 'commentstring' start. Useful when it's a double | |
| 2048 * quote and we already removed a double quote. */ | |
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2049 for (p = s; p > str && VIM_ISWHITE(p[-1]); --p) |
| 45 | 2050 ; |
| 2051 if (p >= str + cms_slen | |
| 2052 && STRNCMP(p - cms_slen, cms_start, cms_slen) == 0) | |
| 2053 { | |
| 835 | 2054 len += (int)(s - p) + cms_slen; |
| 45 | 2055 s = p - cms_slen; |
| 2056 } | |
| 7 | 2057 } |
| 2058 else if (cms_end != NULL) | |
| 2059 { | |
| 45 | 2060 if (!did1 && cms_slen > 0 && STRNCMP(s, cms_start, cms_slen) == 0) |
| 7 | 2061 { |
| 2062 len = cms_slen; | |
| 2063 did1 = TRUE; | |
| 2064 } | |
| 45 | 2065 else if (!did2 && cms_elen > 0 |
| 2066 && STRNCMP(s, cms_end, cms_elen) == 0) | |
| 7 | 2067 { |
| 2068 len = cms_elen; | |
| 2069 did2 = TRUE; | |
| 2070 } | |
| 2071 } | |
| 2072 if (len != 0) | |
| 2073 { | |
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2074 while (VIM_ISWHITE(s[len])) |
| 7 | 2075 ++len; |
| 1624 | 2076 STRMOVE(s, s + len); |
| 7 | 2077 } |
| 2078 else | |
| 2079 { | |
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2080 MB_PTR_ADV(s); |
| 7 | 2081 } |
| 2082 } | |
| 2083 } | |
| 2084 | |
| 2085 /* Folding by indent, expr, marker and syntax. {{{1 */ | |
| 2086 /* Define "fline_T", passed to get fold level for a line. {{{2 */ | |
| 2087 typedef struct | |
| 2088 { | |
| 2089 win_T *wp; /* window */ | |
| 2090 linenr_T lnum; /* current line number */ | |
| 2091 linenr_T off; /* offset between lnum and real line number */ | |
| 2092 linenr_T lnum_save; /* line nr used by foldUpdateIEMSRecurse() */ | |
| 2093 int lvl; /* current level (-1 for undefined) */ | |
| 2094 int lvl_next; /* level used for next line */ | |
| 2095 int start; /* number of folds that are forced to start at | |
| 2096 this line. */ | |
| 2097 int end; /* level of fold that is forced to end below | |
| 2098 this line */ | |
| 2099 int had_end; /* level of fold that is forced to end above | |
| 2100 this line (copy of "end" of prev. line) */ | |
| 2101 } fline_T; | |
| 2102 | |
| 2103 /* Flag is set when redrawing is needed. */ | |
| 2104 static int fold_changed; | |
| 2105 | |
| 2106 /* Function declarations. {{{2 */ | |
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2107 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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2108 static int foldInsert(garray_T *gap, int i); |
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2109 static void foldSplit(garray_T *gap, int i, linenr_T top, linenr_T bot); |
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2110 static void foldRemove(garray_T *gap, linenr_T top, linenr_T bot); |
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2111 static void foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2); |
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2112 static void foldlevelIndent(fline_T *flp); |
| 7 | 2113 #ifdef FEAT_DIFF |
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2114 static void foldlevelDiff(fline_T *flp); |
| 7 | 2115 #endif |
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2116 static void foldlevelExpr(fline_T *flp); |
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2117 static void foldlevelMarker(fline_T *flp); |
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2118 static void foldlevelSyntax(fline_T *flp); |
| 7 | 2119 |
| 2120 /* foldUpdateIEMS() {{{2 */ | |
| 2121 /* | |
| 2122 * Update the folding for window "wp", at least from lines "top" to "bot". | |
| 2123 * Return TRUE if any folds did change. | |
| 2124 */ | |
| 2125 static void | |
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2126 foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot) |
| 7 | 2127 { |
| 2128 linenr_T start; | |
| 2129 linenr_T end; | |
| 2130 fline_T fline; | |
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2131 void (*getlevel)(fline_T *); |
| 7 | 2132 int level; |
| 2133 fold_T *fp; | |
| 2134 | |
| 2135 /* Avoid problems when being called recursively. */ | |
| 2136 if (invalid_top != (linenr_T)0) | |
| 2137 return; | |
| 2138 | |
| 2139 if (wp->w_foldinvalid) | |
| 2140 { | |
| 2141 /* Need to update all folds. */ | |
| 2142 top = 1; | |
| 2143 bot = wp->w_buffer->b_ml.ml_line_count; | |
| 2144 wp->w_foldinvalid = FALSE; | |
| 2145 | |
| 2146 /* Mark all folds a maybe-small. */ | |
| 2147 setSmallMaybe(&wp->w_folds); | |
| 2148 } | |
| 2149 | |
| 2150 #ifdef FEAT_DIFF | |
| 2151 /* add the context for "diff" folding */ | |
| 2152 if (foldmethodIsDiff(wp)) | |
| 2153 { | |
| 2154 if (top > diff_context) | |
| 2155 top -= diff_context; | |
| 2156 else | |
| 2157 top = 1; | |
| 2158 bot += diff_context; | |
| 2159 } | |
| 2160 #endif | |
| 2161 | |
| 2162 /* When deleting lines at the end of the buffer "top" can be past the end | |
| 2163 * of the buffer. */ | |
| 2164 if (top > wp->w_buffer->b_ml.ml_line_count) | |
| 2165 top = wp->w_buffer->b_ml.ml_line_count; | |
| 2166 | |
| 2167 fold_changed = FALSE; | |
| 2168 fline.wp = wp; | |
| 2169 fline.off = 0; | |
| 2170 fline.lvl = 0; | |
| 2171 fline.lvl_next = -1; | |
| 2172 fline.start = 0; | |
| 2173 fline.end = MAX_LEVEL + 1; | |
| 2174 fline.had_end = MAX_LEVEL + 1; | |
| 2175 | |
| 2176 invalid_top = top; | |
| 2177 invalid_bot = bot; | |
| 2178 | |
| 2179 if (foldmethodIsMarker(wp)) | |
| 2180 { | |
| 2181 getlevel = foldlevelMarker; | |
| 2182 | |
| 2183 /* Init marker variables to speed up foldlevelMarker(). */ | |
| 2184 parseMarker(wp); | |
| 2185 | |
| 2186 /* Need to get the level of the line above top, it is used if there is | |
| 2187 * no marker at the top. */ | |
| 2188 if (top > 1) | |
| 2189 { | |
| 2190 /* Get the fold level at top - 1. */ | |
| 2191 level = foldLevelWin(wp, top - 1); | |
| 2192 | |
| 2193 /* The fold may end just above the top, check for that. */ | |
| 2194 fline.lnum = top - 1; | |
| 2195 fline.lvl = level; | |
| 2196 getlevel(&fline); | |
| 2197 | |
| 2198 /* If a fold started here, we already had the level, if it stops | |
| 2199 * here, we need to use lvl_next. Could also start and end a fold | |
| 2200 * in the same line. */ | |
| 2201 if (fline.lvl > level) | |
| 2202 fline.lvl = level - (fline.lvl - fline.lvl_next); | |
| 2203 else | |
| 2204 fline.lvl = fline.lvl_next; | |
| 2205 } | |
| 2206 fline.lnum = top; | |
| 2207 getlevel(&fline); | |
| 2208 } | |
| 2209 else | |
| 2210 { | |
| 2211 fline.lnum = top; | |
| 2212 if (foldmethodIsExpr(wp)) | |
| 2213 { | |
| 2214 getlevel = foldlevelExpr; | |
| 2215 /* start one line back, because a "<1" may indicate the end of a | |
| 2216 * fold in the topline */ | |
| 2217 if (top > 1) | |
| 2218 --fline.lnum; | |
| 2219 } | |
| 2220 else if (foldmethodIsSyntax(wp)) | |
| 2221 getlevel = foldlevelSyntax; | |
| 2222 #ifdef FEAT_DIFF | |
| 2223 else if (foldmethodIsDiff(wp)) | |
| 2224 getlevel = foldlevelDiff; | |
| 2225 #endif | |
| 2226 else | |
| 2227 getlevel = foldlevelIndent; | |
| 2228 | |
| 2229 /* Backup to a line for which the fold level is defined. Since it's | |
| 2230 * always defined for line one, we will stop there. */ | |
| 2231 fline.lvl = -1; | |
| 2232 for ( ; !got_int; --fline.lnum) | |
| 2233 { | |
| 2234 /* Reset lvl_next each time, because it will be set to a value for | |
| 2235 * the next line, but we search backwards here. */ | |
| 2236 fline.lvl_next = -1; | |
| 2237 getlevel(&fline); | |
| 2238 if (fline.lvl >= 0) | |
| 2239 break; | |
| 2240 } | |
| 2241 } | |
| 2242 | |
| 1977 | 2243 /* |
| 2244 * If folding is defined by the syntax, it is possible that a change in | |
| 2245 * one line will cause all sub-folds of the current fold to change (e.g., | |
| 2246 * closing a C-style comment can cause folds in the subsequent lines to | |
| 2247 * appear). To take that into account we should adjust the value of "bot" | |
| 2248 * to point to the end of the current fold: | |
| 2249 */ | |
| 2250 if (foldlevelSyntax == getlevel) | |
| 2251 { | |
| 2252 garray_T *gap = &wp->w_folds; | |
|
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|
2253 fold_T *fpn = NULL; |
| 1977 | 2254 int current_fdl = 0; |
| 2255 linenr_T fold_start_lnum = 0; | |
| 2256 linenr_T lnum_rel = fline.lnum; | |
| 2257 | |
| 2258 while (current_fdl < fline.lvl) | |
| 2259 { | |
|
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|
2260 if (!foldFind(gap, lnum_rel, &fpn)) |
| 1977 | 2261 break; |
| 2262 ++current_fdl; | |
| 2263 | |
|
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|
2264 fold_start_lnum += fpn->fd_top; |
|
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|
2265 gap = &fpn->fd_nested; |
|
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|
2266 lnum_rel -= fpn->fd_top; |
| 1977 | 2267 } |
|
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|
2268 if (fpn != NULL && current_fdl == fline.lvl) |
| 1977 | 2269 { |
|
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|
2270 linenr_T fold_end_lnum = fold_start_lnum + fpn->fd_len; |
| 1977 | 2271 |
| 2272 if (fold_end_lnum > bot) | |
| 2273 bot = fold_end_lnum; | |
| 2274 } | |
| 2275 } | |
| 2276 | |
| 7 | 2277 start = fline.lnum; |
| 2278 end = bot; | |
| 2279 /* Do at least one line. */ | |
| 2280 if (start > end && end < wp->w_buffer->b_ml.ml_line_count) | |
| 2281 end = start; | |
| 2282 while (!got_int) | |
| 2283 { | |
| 2284 /* Always stop at the end of the file ("end" can be past the end of | |
| 2285 * the file). */ | |
| 2286 if (fline.lnum > wp->w_buffer->b_ml.ml_line_count) | |
| 2287 break; | |
| 2288 if (fline.lnum > end) | |
| 2289 { | |
| 2290 /* For "marker", "expr" and "syntax" methods: If a change caused | |
| 2291 * a fold to be removed, we need to continue at least until where | |
| 2292 * it ended. */ | |
| 2293 if (getlevel != foldlevelMarker | |
| 2294 && getlevel != foldlevelSyntax | |
| 2295 && getlevel != foldlevelExpr) | |
| 2296 break; | |
| 2297 if ((start <= end | |
| 2298 && foldFind(&wp->w_folds, end, &fp) | |
| 2299 && fp->fd_top + fp->fd_len - 1 > end) | |
| 2300 || (fline.lvl == 0 | |
| 2301 && foldFind(&wp->w_folds, fline.lnum, &fp) | |
| 2302 && fp->fd_top < fline.lnum)) | |
| 2303 end = fp->fd_top + fp->fd_len - 1; | |
| 2304 else if (getlevel == foldlevelSyntax | |
| 2305 && foldLevelWin(wp, fline.lnum) != fline.lvl) | |
| 2306 /* For "syntax" method: Compare the foldlevel that the syntax | |
| 2307 * tells us to the foldlevel from the existing folds. If they | |
| 2308 * don't match continue updating folds. */ | |
| 2309 end = fline.lnum; | |
| 2310 else | |
| 2311 break; | |
| 2312 } | |
| 2313 | |
| 2314 /* A level 1 fold starts at a line with foldlevel > 0. */ | |
| 2315 if (fline.lvl > 0) | |
| 2316 { | |
| 2317 invalid_top = fline.lnum; | |
| 2318 invalid_bot = end; | |
| 2319 end = foldUpdateIEMSRecurse(&wp->w_folds, | |
| 2320 1, start, &fline, getlevel, end, FD_LEVEL); | |
| 2321 start = fline.lnum; | |
| 2322 } | |
| 2323 else | |
| 2324 { | |
| 2325 if (fline.lnum == wp->w_buffer->b_ml.ml_line_count) | |
| 2326 break; | |
| 2327 ++fline.lnum; | |
| 2328 fline.lvl = fline.lvl_next; | |
| 2329 getlevel(&fline); | |
| 2330 } | |
| 2331 } | |
| 2332 | |
| 2333 /* There can't be any folds from start until end now. */ | |
| 2334 foldRemove(&wp->w_folds, start, end); | |
| 2335 | |
| 2336 /* If some fold changed, need to redraw and position cursor. */ | |
| 2337 if (fold_changed && wp->w_p_fen) | |
| 1554 | 2338 changed_window_setting_win(wp); |
| 7 | 2339 |
| 2340 /* If we updated folds past "bot", need to redraw more lines. Don't do | |
| 2341 * this in other situations, the changed lines will be redrawn anyway and | |
| 2342 * this method can cause the whole window to be updated. */ | |
| 2343 if (end != bot) | |
| 2344 { | |
| 2345 if (wp->w_redraw_top == 0 || wp->w_redraw_top > top) | |
| 2346 wp->w_redraw_top = top; | |
| 2347 if (wp->w_redraw_bot < end) | |
| 2348 wp->w_redraw_bot = end; | |
| 2349 } | |
| 2350 | |
| 2351 invalid_top = (linenr_T)0; | |
| 2352 } | |
| 2353 | |
| 2354 /* foldUpdateIEMSRecurse() {{{2 */ | |
| 2355 /* | |
| 2356 * Update a fold that starts at "flp->lnum". At this line there is always a | |
| 2357 * valid foldlevel, and its level >= "level". | |
| 2358 * "flp" is valid for "flp->lnum" when called and it's valid when returning. | |
| 2359 * "flp->lnum" is set to the lnum just below the fold, if it ends before | |
| 2360 * "bot", it's "bot" plus one if the fold continues and it's bigger when using | |
| 2361 * the marker method and a text change made following folds to change. | |
| 2362 * When returning, "flp->lnum_save" is the line number that was used to get | |
| 2363 * the level when the level at "flp->lnum" is invalid. | |
| 2364 * Remove any folds from "startlnum" up to here at this level. | |
| 2365 * Recursively update nested folds. | |
| 2366 * Below line "bot" there are no changes in the text. | |
| 2367 * "flp->lnum", "flp->lnum_save" and "bot" are relative to the start of the | |
| 2368 * outer fold. | |
| 2369 * "flp->off" is the offset to the real line number in the buffer. | |
| 2370 * | |
| 2371 * All this would be a lot simpler if all folds in the range would be deleted | |
| 1698 | 2372 * and then created again. But we would lose all information about the |
| 7 | 2373 * folds, even when making changes that don't affect the folding (e.g. "vj~"). |
| 2374 * | |
| 2375 * Returns bot, which may have been increased for lines that also need to be | |
| 2376 * updated as a result of a detected change in the fold. | |
| 2377 */ | |
| 2378 static linenr_T | |
|
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diff
changeset
|
2379 foldUpdateIEMSRecurse( |
|
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diff
changeset
|
2380 garray_T *gap, |
|
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diff
changeset
|
2381 int level, |
|
81794242a275
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diff
changeset
|
2382 linenr_T startlnum, |
|
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diff
changeset
|
2383 fline_T *flp, |
|
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diff
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|
2384 void (*getlevel)(fline_T *), |
|
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|
2385 linenr_T bot, |
|
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7807
diff
changeset
|
2386 int topflags) /* flags used by containing fold */ |
| 7 | 2387 { |
| 2388 linenr_T ll; | |
| 2389 fold_T *fp = NULL; | |
| 2390 fold_T *fp2; | |
| 2391 int lvl = level; | |
| 2392 linenr_T startlnum2 = startlnum; | |
| 2393 linenr_T firstlnum = flp->lnum; /* first lnum we got */ | |
| 2394 int i; | |
| 2395 int finish = FALSE; | |
| 2396 linenr_T linecount = flp->wp->w_buffer->b_ml.ml_line_count - flp->off; | |
| 2397 int concat; | |
| 2398 | |
| 2399 /* | |
| 2400 * If using the marker method, the start line is not the start of a fold | |
| 2401 * at the level we're dealing with and the level is non-zero, we must use | |
| 2402 * the previous fold. But ignore a fold that starts at or below | |
| 2403 * startlnum, it must be deleted. | |
| 2404 */ | |
| 2405 if (getlevel == foldlevelMarker && flp->start <= flp->lvl - level | |
| 2406 && flp->lvl > 0) | |
| 2407 { | |
| 7009 | 2408 (void)foldFind(gap, startlnum - 1, &fp); |
| 7 | 2409 if (fp >= ((fold_T *)gap->ga_data) + gap->ga_len |
| 2410 || fp->fd_top >= startlnum) | |
| 2411 fp = NULL; | |
| 2412 } | |
| 2413 | |
| 2414 /* | |
| 2415 * Loop over all lines in this fold, or until "bot" is hit. | |
| 2416 * Handle nested folds inside of this fold. | |
| 2417 * "flp->lnum" is the current line. When finding the end of the fold, it | |
| 2418 * is just below the end of the fold. | |
| 2419 * "*flp" contains the level of the line "flp->lnum" or a following one if | |
| 2420 * there are lines with an invalid fold level. "flp->lnum_save" is the | |
| 2421 * line number that was used to get the fold level (below "flp->lnum" when | |
| 2422 * it has an invalid fold level). When called the fold level is always | |
| 2423 * valid, thus "flp->lnum_save" is equal to "flp->lnum". | |
| 2424 */ | |
| 2425 flp->lnum_save = flp->lnum; | |
| 2426 while (!got_int) | |
| 2427 { | |
| 2428 /* Updating folds can be slow, check for CTRL-C. */ | |
| 2429 line_breakcheck(); | |
| 2430 | |
| 2431 /* Set "lvl" to the level of line "flp->lnum". When flp->start is set | |
| 2432 * and after the first line of the fold, set the level to zero to | |
| 2433 * force the fold to end. Do the same when had_end is set: Previous | |
| 2434 * line was marked as end of a fold. */ | |
| 2435 lvl = flp->lvl; | |
| 2436 if (lvl > MAX_LEVEL) | |
| 2437 lvl = MAX_LEVEL; | |
| 2438 if (flp->lnum > firstlnum | |
| 2439 && (level > lvl - flp->start || level >= flp->had_end)) | |
| 2440 lvl = 0; | |
| 2441 | |
| 2442 if (flp->lnum > bot && !finish && fp != NULL) | |
| 2443 { | |
| 2444 /* For "marker" and "syntax" methods: | |
| 2445 * - If a change caused a nested fold to be removed, we need to | |
| 2446 * delete it and continue at least until where it ended. | |
| 2447 * - If a change caused a nested fold to be created, or this fold | |
| 2448 * to continue below its original end, need to finish this fold. | |
| 2449 */ | |
| 2450 if (getlevel != foldlevelMarker | |
| 2451 && getlevel != foldlevelExpr | |
| 2452 && getlevel != foldlevelSyntax) | |
| 2453 break; | |
| 2454 i = 0; | |
| 2455 fp2 = fp; | |
| 2456 if (lvl >= level) | |
| 2457 { | |
| 2458 /* Compute how deep the folds currently are, if it's deeper | |
| 2459 * than "lvl" then some must be deleted, need to update | |
| 2460 * at least one nested fold. */ | |
| 2461 ll = flp->lnum - fp->fd_top; | |
| 2462 while (foldFind(&fp2->fd_nested, ll, &fp2)) | |
| 2463 { | |
| 2464 ++i; | |
| 2465 ll -= fp2->fd_top; | |
| 2466 } | |
| 2467 } | |
| 2468 if (lvl < level + i) | |
| 2469 { | |
| 7009 | 2470 (void)foldFind(&fp->fd_nested, flp->lnum - fp->fd_top, &fp2); |
| 7 | 2471 if (fp2 != NULL) |
| 2472 bot = fp2->fd_top + fp2->fd_len - 1 + fp->fd_top; | |
| 2473 } | |
| 2474 else if (fp->fd_top + fp->fd_len <= flp->lnum && lvl >= level) | |
| 2475 finish = TRUE; | |
| 2476 else | |
| 2477 break; | |
| 2478 } | |
| 2479 | |
| 2480 /* At the start of the first nested fold and at the end of the current | |
| 2481 * fold: check if existing folds at this level, before the current | |
| 2482 * one, need to be deleted or truncated. */ | |
| 2483 if (fp == NULL | |
| 2484 && (lvl != level | |
| 2485 || flp->lnum_save >= bot | |
| 2486 || flp->start != 0 | |
| 2487 || flp->had_end <= MAX_LEVEL | |
| 2488 || flp->lnum == linecount)) | |
| 2489 { | |
| 2490 /* | |
| 2491 * Remove or update folds that have lines between startlnum and | |
| 2492 * firstlnum. | |
| 2493 */ | |
| 2494 while (!got_int) | |
| 2495 { | |
| 2496 /* set concat to 1 if it's allowed to concatenated this fold | |
| 2497 * with a previous one that touches it. */ | |
| 2498 if (flp->start != 0 || flp->had_end <= MAX_LEVEL) | |
| 2499 concat = 0; | |
| 2500 else | |
| 2501 concat = 1; | |
| 2502 | |
| 2503 /* Find an existing fold to re-use. Preferably one that | |
| 2504 * includes startlnum, otherwise one that ends just before | |
| 2505 * startlnum or starts after it. */ | |
| 2506 if (foldFind(gap, startlnum, &fp) | |
| 2507 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
| 2508 && fp->fd_top <= firstlnum) | |
| 2509 || foldFind(gap, firstlnum - concat, &fp) | |
| 2510 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
| 2511 && ((lvl < level && fp->fd_top < flp->lnum) | |
| 2512 || (lvl >= level | |
| 2513 && fp->fd_top <= flp->lnum_save)))) | |
| 2514 { | |
| 2515 if (fp->fd_top + fp->fd_len + concat > firstlnum) | |
| 2516 { | |
| 2517 /* Use existing fold for the new fold. If it starts | |
| 2518 * before where we started looking, extend it. If it | |
| 2519 * starts at another line, update nested folds to keep | |
| 2520 * their position, compensating for the new fd_top. */ | |
|
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2521 if (fp->fd_top == firstlnum) |
|
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|
2522 { |
|
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|
2523 /* have found a fold beginning where we want */ |
|
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2524 } |
|
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|
2525 else if (fp->fd_top >= startlnum) |
| 7 | 2526 { |
| 2527 if (fp->fd_top > firstlnum) | |
| 2528 /* like lines are inserted */ | |
| 2529 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2530 (linenr_T)0, (linenr_T)MAXLNUM, | |
| 2531 (long)(fp->fd_top - firstlnum), 0L); | |
| 2532 else | |
| 2533 /* like lines are deleted */ | |
| 2534 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2535 (linenr_T)0, | |
| 2536 (long)(firstlnum - fp->fd_top - 1), | |
| 2537 (linenr_T)MAXLNUM, | |
| 2538 (long)(fp->fd_top - firstlnum)); | |
| 2539 fp->fd_len += fp->fd_top - firstlnum; | |
| 2540 fp->fd_top = firstlnum; | |
| 2541 fold_changed = TRUE; | |
| 2542 } | |
|
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2543 else if ((flp->start != 0 && lvl == level) |
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2544 || firstlnum != startlnum) |
| 7 | 2545 { |
|
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2546 linenr_T breakstart; |
|
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2547 linenr_T breakend; |
|
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2548 |
|
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2549 /* |
|
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2550 * Before there was a fold spanning from above |
|
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2551 * startlnum to below firstlnum. This fold is valid |
|
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2552 * above startlnum (because we are not updating |
|
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2553 * that range), but there should now be a break in |
|
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2554 * it. |
|
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2555 * If the break is because we are now forced to |
|
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2556 * start a new fold at the level "level" at line |
|
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2557 * fline->lnum, then we need to split the fold at |
|
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2558 * fline->lnum. |
|
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2559 * If the break is because the range |
|
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2560 * [startlnum, firstlnum) is now at a lower indent |
|
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|
2561 * than "level", we need to split the fold in this |
|
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2562 * range. |
|
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2563 * Any splits have to be done recursively. |
|
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|
2564 */ |
|
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|
2565 if (firstlnum != startlnum) |
|
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|
2566 { |
|
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|
2567 breakstart = startlnum; |
|
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2568 breakend = firstlnum; |
|
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2569 } |
|
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|
2570 else |
|
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|
2571 { |
|
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|
2572 breakstart = flp->lnum; |
|
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|
2573 breakend = flp->lnum; |
|
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|
2574 } |
|
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|
2575 foldRemove(&fp->fd_nested, breakstart - fp->fd_top, |
|
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|
2576 breakend - fp->fd_top); |
| 7 | 2577 i = (int)(fp - (fold_T *)gap->ga_data); |
|
11038
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|
2578 foldSplit(gap, i, breakstart, breakend - 1); |
| 7 | 2579 fp = (fold_T *)gap->ga_data + i + 1; |
|
11038
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|
2580 |
| 7 | 2581 /* If using the "marker" or "syntax" method, we |
| 2582 * need to continue until the end of the fold is | |
| 2583 * found. */ | |
| 2584 if (getlevel == foldlevelMarker | |
| 2585 || getlevel == foldlevelExpr | |
| 2586 || getlevel == foldlevelSyntax) | |
| 2587 finish = TRUE; | |
| 2588 } | |
|
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|
2589 |
|
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|
2590 if (fp->fd_top == startlnum && concat) |
|
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|
2591 { |
|
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|
2592 i = (int)(fp - (fold_T *)gap->ga_data); |
|
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|
2593 if (i != 0) |
|
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|
2594 { |
|
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|
2595 fp2 = fp - 1; |
|
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|
2596 if (fp2->fd_top + fp2->fd_len == fp->fd_top) |
|
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|
2597 { |
|
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|
2598 foldMerge(fp2, gap, fp); |
|
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|
2599 fp = fp2; |
|
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|
2600 } |
|
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|
2601 } |
|
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|
2602 } |
| 7 | 2603 break; |
| 2604 } | |
| 2605 if (fp->fd_top >= startlnum) | |
| 2606 { | |
| 2607 /* A fold that starts at or after startlnum and stops | |
| 2608 * before the new fold must be deleted. Continue | |
| 2609 * looking for the next one. */ | |
| 2610 deleteFoldEntry(gap, | |
| 2611 (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
| 2612 } | |
| 2613 else | |
| 2614 { | |
| 2615 /* A fold has some lines above startlnum, truncate it | |
| 2616 * to stop just above startlnum. */ | |
| 2617 fp->fd_len = startlnum - fp->fd_top; | |
| 2618 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2619 (linenr_T)fp->fd_len, (linenr_T)MAXLNUM, | |
| 2620 (linenr_T)MAXLNUM, 0L); | |
| 2621 fold_changed = TRUE; | |
| 2622 } | |
| 2623 } | |
| 2624 else | |
| 2625 { | |
| 2626 /* Insert new fold. Careful: ga_data may be NULL and it | |
| 2627 * may change! */ | |
| 2628 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 2629 if (foldInsert(gap, i) != OK) | |
| 2630 return bot; | |
| 2631 fp = (fold_T *)gap->ga_data + i; | |
| 2632 /* The new fold continues until bot, unless we find the | |
| 2633 * end earlier. */ | |
| 2634 fp->fd_top = firstlnum; | |
| 2635 fp->fd_len = bot - firstlnum + 1; | |
| 2636 /* When the containing fold is open, the new fold is open. | |
| 2637 * The new fold is closed if the fold above it is closed. | |
| 2638 * The first fold depends on the containing fold. */ | |
| 2639 if (topflags == FD_OPEN) | |
| 2640 { | |
| 2641 flp->wp->w_fold_manual = TRUE; | |
| 2642 fp->fd_flags = FD_OPEN; | |
| 2643 } | |
| 2644 else if (i <= 0) | |
| 2645 { | |
| 2646 fp->fd_flags = topflags; | |
| 2647 if (topflags != FD_LEVEL) | |
| 2648 flp->wp->w_fold_manual = TRUE; | |
| 2649 } | |
| 2650 else | |
| 2651 fp->fd_flags = (fp - 1)->fd_flags; | |
| 2652 fp->fd_small = MAYBE; | |
| 2653 /* If using the "marker", "expr" or "syntax" method, we | |
| 2654 * need to continue until the end of the fold is found. */ | |
| 2655 if (getlevel == foldlevelMarker | |
| 2656 || getlevel == foldlevelExpr | |
| 2657 || getlevel == foldlevelSyntax) | |
| 2658 finish = TRUE; | |
| 2659 fold_changed = TRUE; | |
| 2660 break; | |
| 2661 } | |
| 2662 } | |
| 2663 } | |
| 2664 | |
| 2665 if (lvl < level || flp->lnum > linecount) | |
| 2666 { | |
| 2667 /* | |
| 2668 * Found a line with a lower foldlevel, this fold ends just above | |
| 2669 * "flp->lnum". | |
| 2670 */ | |
| 2671 break; | |
| 2672 } | |
| 2673 | |
| 2674 /* | |
| 2675 * The fold includes the line "flp->lnum" and "flp->lnum_save". | |
| 840 | 2676 * Check "fp" for safety. |
| 7 | 2677 */ |
| 840 | 2678 if (lvl > level && fp != NULL) |
| 7 | 2679 { |
| 2680 /* | |
| 2681 * There is a nested fold, handle it recursively. | |
| 2682 */ | |
| 2683 /* At least do one line (can happen when finish is TRUE). */ | |
| 2684 if (bot < flp->lnum) | |
| 2685 bot = flp->lnum; | |
| 2686 | |
| 2687 /* Line numbers in the nested fold are relative to the start of | |
| 2688 * this fold. */ | |
| 2689 flp->lnum = flp->lnum_save - fp->fd_top; | |
| 2690 flp->off += fp->fd_top; | |
| 2691 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 2692 bot = foldUpdateIEMSRecurse(&fp->fd_nested, level + 1, | |
| 2693 startlnum2 - fp->fd_top, flp, getlevel, | |
| 2694 bot - fp->fd_top, fp->fd_flags); | |
| 2695 fp = (fold_T *)gap->ga_data + i; | |
| 2696 flp->lnum += fp->fd_top; | |
| 2697 flp->lnum_save += fp->fd_top; | |
| 2698 flp->off -= fp->fd_top; | |
| 2699 bot += fp->fd_top; | |
| 2700 startlnum2 = flp->lnum; | |
| 2701 | |
| 2702 /* This fold may end at the same line, don't incr. flp->lnum. */ | |
| 2703 } | |
| 2704 else | |
| 2705 { | |
| 2706 /* | |
| 2707 * Get the level of the next line, then continue the loop to check | |
| 2708 * if it ends there. | |
| 2709 * Skip over undefined lines, to find the foldlevel after it. | |
| 2710 * For the last line in the file the foldlevel is always valid. | |
| 2711 */ | |
| 2712 flp->lnum = flp->lnum_save; | |
| 2713 ll = flp->lnum + 1; | |
| 2714 while (!got_int) | |
| 2715 { | |
| 2716 /* Make the previous level available to foldlevel(). */ | |
| 2717 prev_lnum = flp->lnum; | |
| 2718 prev_lnum_lvl = flp->lvl; | |
| 2719 | |
| 2720 if (++flp->lnum > linecount) | |
| 2721 break; | |
| 2722 flp->lvl = flp->lvl_next; | |
| 2723 getlevel(flp); | |
| 2724 if (flp->lvl >= 0 || flp->had_end <= MAX_LEVEL) | |
| 2725 break; | |
| 2726 } | |
| 2727 prev_lnum = 0; | |
| 2728 if (flp->lnum > linecount) | |
| 2729 break; | |
| 2730 | |
| 2731 /* leave flp->lnum_save to lnum of the line that was used to get | |
| 2732 * the level, flp->lnum to the lnum of the next line. */ | |
| 2733 flp->lnum_save = flp->lnum; | |
| 2734 flp->lnum = ll; | |
| 2735 } | |
| 2736 } | |
| 2737 | |
| 2738 if (fp == NULL) /* only happens when got_int is set */ | |
| 2739 return bot; | |
| 2740 | |
| 2741 /* | |
| 2742 * Get here when: | |
| 2743 * lvl < level: the folds ends just above "flp->lnum" | |
| 2744 * lvl >= level: fold continues below "bot" | |
| 2745 */ | |
| 2746 | |
| 2747 /* Current fold at least extends until lnum. */ | |
| 2748 if (fp->fd_len < flp->lnum - fp->fd_top) | |
| 2749 { | |
| 2750 fp->fd_len = flp->lnum - fp->fd_top; | |
| 1513 | 2751 fp->fd_small = MAYBE; |
| 7 | 2752 fold_changed = TRUE; |
| 2753 } | |
| 2754 | |
| 2755 /* Delete contained folds from the end of the last one found until where | |
| 2756 * we stopped looking. */ | |
| 2757 foldRemove(&fp->fd_nested, startlnum2 - fp->fd_top, | |
| 2758 flp->lnum - 1 - fp->fd_top); | |
| 2759 | |
| 2760 if (lvl < level) | |
| 2761 { | |
| 2762 /* End of fold found, update the length when it got shorter. */ | |
| 2763 if (fp->fd_len != flp->lnum - fp->fd_top) | |
| 2764 { | |
| 2765 if (fp->fd_top + fp->fd_len > bot + 1) | |
| 2766 { | |
| 1224 | 2767 /* fold continued below bot */ |
| 7 | 2768 if (getlevel == foldlevelMarker |
| 2769 || getlevel == foldlevelExpr | |
| 2770 || getlevel == foldlevelSyntax) | |
| 2771 { | |
| 2772 /* marker method: truncate the fold and make sure the | |
| 2773 * previously included lines are processed again */ | |
| 2774 bot = fp->fd_top + fp->fd_len - 1; | |
| 2775 fp->fd_len = flp->lnum - fp->fd_top; | |
| 2776 } | |
| 2777 else | |
| 2778 { | |
| 2779 /* indent or expr method: split fold to create a new one | |
| 2780 * below bot */ | |
| 2781 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 2782 foldSplit(gap, i, flp->lnum, bot); | |
| 2783 fp = (fold_T *)gap->ga_data + i; | |
| 2784 } | |
| 2785 } | |
| 2786 else | |
| 2787 fp->fd_len = flp->lnum - fp->fd_top; | |
| 2788 fold_changed = TRUE; | |
| 2789 } | |
| 2790 } | |
| 2791 | |
| 2792 /* delete following folds that end before the current line */ | |
| 2793 for (;;) | |
| 2794 { | |
| 2795 fp2 = fp + 1; | |
| 2796 if (fp2 >= (fold_T *)gap->ga_data + gap->ga_len | |
| 2797 || fp2->fd_top > flp->lnum) | |
| 2798 break; | |
| 2799 if (fp2->fd_top + fp2->fd_len > flp->lnum) | |
| 2800 { | |
| 2801 if (fp2->fd_top < flp->lnum) | |
| 2802 { | |
| 2803 /* Make fold that includes lnum start at lnum. */ | |
| 2804 foldMarkAdjustRecurse(&fp2->fd_nested, | |
| 2805 (linenr_T)0, (long)(flp->lnum - fp2->fd_top - 1), | |
| 2806 (linenr_T)MAXLNUM, (long)(fp2->fd_top - flp->lnum)); | |
| 2807 fp2->fd_len -= flp->lnum - fp2->fd_top; | |
| 2808 fp2->fd_top = flp->lnum; | |
| 2809 fold_changed = TRUE; | |
| 2810 } | |
| 2811 | |
| 2812 if (lvl >= level) | |
| 2813 { | |
| 2814 /* merge new fold with existing fold that follows */ | |
| 2815 foldMerge(fp, gap, fp2); | |
| 2816 } | |
| 2817 break; | |
| 2818 } | |
| 2819 fold_changed = TRUE; | |
| 2820 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
| 2821 } | |
| 2822 | |
| 2823 /* Need to redraw the lines we inspected, which might be further down than | |
| 2824 * was asked for. */ | |
| 2825 if (bot < flp->lnum - 1) | |
| 2826 bot = flp->lnum - 1; | |
| 2827 | |
| 2828 return bot; | |
| 2829 } | |
| 2830 | |
| 2831 /* foldInsert() {{{2 */ | |
| 2832 /* | |
| 2833 * Insert a new fold in "gap" at position "i". | |
| 2834 * Returns OK for success, FAIL for failure. | |
| 2835 */ | |
| 2836 static int | |
|
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diff
changeset
|
2837 foldInsert(garray_T *gap, int i) |
| 7 | 2838 { |
| 2839 fold_T *fp; | |
| 2840 | |
| 2841 if (ga_grow(gap, 1) != OK) | |
| 2842 return FAIL; | |
| 2843 fp = (fold_T *)gap->ga_data + i; | |
| 2844 if (i < gap->ga_len) | |
| 2845 mch_memmove(fp + 1, fp, sizeof(fold_T) * (gap->ga_len - i)); | |
| 2846 ++gap->ga_len; | |
| 2847 ga_init2(&fp->fd_nested, (int)sizeof(fold_T), 10); | |
| 2848 return OK; | |
| 2849 } | |
| 2850 | |
| 2851 /* foldSplit() {{{2 */ | |
| 2852 /* | |
| 2853 * Split the "i"th fold in "gap", which starts before "top" and ends below | |
| 2854 * "bot" in two pieces, one ending above "top" and the other starting below | |
| 2855 * "bot". | |
| 2856 * The caller must first have taken care of any nested folds from "top" to | |
| 2857 * "bot"! | |
| 2858 */ | |
| 2859 static void | |
|
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changeset
|
2860 foldSplit( |
|
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|
2861 garray_T *gap, |
|
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|
2862 int i, |
|
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|
2863 linenr_T top, |
|
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changeset
|
2864 linenr_T bot) |
| 7 | 2865 { |
| 2866 fold_T *fp; | |
| 2867 fold_T *fp2; | |
| 2868 garray_T *gap1; | |
| 2869 garray_T *gap2; | |
| 2870 int idx; | |
| 2871 int len; | |
| 2872 | |
| 2873 /* The fold continues below bot, need to split it. */ | |
| 2874 if (foldInsert(gap, i + 1) == FAIL) | |
| 2875 return; | |
| 2876 fp = (fold_T *)gap->ga_data + i; | |
| 2877 fp[1].fd_top = bot + 1; | |
| 2878 fp[1].fd_len = fp->fd_len - (fp[1].fd_top - fp->fd_top); | |
| 2879 fp[1].fd_flags = fp->fd_flags; | |
| 1985 | 2880 fp[1].fd_small = MAYBE; |
| 2881 fp->fd_small = MAYBE; | |
| 7 | 2882 |
| 2883 /* Move nested folds below bot to new fold. There can't be | |
| 2884 * any between top and bot, they have been removed by the caller. */ | |
| 2885 gap1 = &fp->fd_nested; | |
| 2886 gap2 = &fp[1].fd_nested; | |
| 2887 (void)(foldFind(gap1, bot + 1 - fp->fd_top, &fp2)); | |
| 2888 len = (int)((fold_T *)gap1->ga_data + gap1->ga_len - fp2); | |
| 2889 if (len > 0 && ga_grow(gap2, len) == OK) | |
| 2890 { | |
| 2891 for (idx = 0; idx < len; ++idx) | |
| 2892 { | |
| 2893 ((fold_T *)gap2->ga_data)[idx] = fp2[idx]; | |
| 2894 ((fold_T *)gap2->ga_data)[idx].fd_top | |
| 2895 -= fp[1].fd_top - fp->fd_top; | |
| 2896 } | |
| 2897 gap2->ga_len = len; | |
| 2898 gap1->ga_len -= len; | |
| 2899 } | |
| 2900 fp->fd_len = top - fp->fd_top; | |
| 2901 fold_changed = TRUE; | |
| 2902 } | |
| 2903 | |
| 2904 /* foldRemove() {{{2 */ | |
| 2905 /* | |
| 2906 * Remove folds within the range "top" to and including "bot". | |
| 2907 * Check for these situations: | |
| 2908 * 1 2 3 | |
| 2909 * 1 2 3 | |
| 2910 * top 2 3 4 5 | |
| 2911 * 2 3 4 5 | |
| 2912 * bot 2 3 4 5 | |
| 2913 * 3 5 6 | |
| 2914 * 3 5 6 | |
| 2915 * | |
| 2916 * 1: not changed | |
| 1224 | 2917 * 2: truncate to stop above "top" |
| 7 | 2918 * 3: split in two parts, one stops above "top", other starts below "bot". |
| 2919 * 4: deleted | |
| 2920 * 5: made to start below "bot". | |
| 2921 * 6: not changed | |
| 2922 */ | |
| 2923 static void | |
|
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changeset
|
2924 foldRemove(garray_T *gap, linenr_T top, linenr_T bot) |
| 7 | 2925 { |
| 2926 fold_T *fp = NULL; | |
| 2927 | |
| 2928 if (bot < top) | |
| 2929 return; /* nothing to do */ | |
| 2930 | |
| 2931 for (;;) | |
| 2932 { | |
| 2933 /* Find fold that includes top or a following one. */ | |
| 2934 if (foldFind(gap, top, &fp) && fp->fd_top < top) | |
| 2935 { | |
| 2936 /* 2: or 3: need to delete nested folds */ | |
| 2937 foldRemove(&fp->fd_nested, top - fp->fd_top, bot - fp->fd_top); | |
| 2938 if (fp->fd_top + fp->fd_len > bot + 1) | |
| 2939 { | |
| 2940 /* 3: need to split it. */ | |
| 2941 foldSplit(gap, (int)(fp - (fold_T *)gap->ga_data), top, bot); | |
| 2942 } | |
| 2943 else | |
| 2944 { | |
| 2945 /* 2: truncate fold at "top". */ | |
| 2946 fp->fd_len = top - fp->fd_top; | |
| 2947 } | |
| 2948 fold_changed = TRUE; | |
| 2949 continue; | |
| 2950 } | |
| 2951 if (fp >= (fold_T *)(gap->ga_data) + gap->ga_len | |
| 2952 || fp->fd_top > bot) | |
| 2953 { | |
| 2954 /* 6: Found a fold below bot, can stop looking. */ | |
| 2955 break; | |
| 2956 } | |
| 2957 if (fp->fd_top >= top) | |
| 2958 { | |
| 2959 /* Found an entry below top. */ | |
| 2960 fold_changed = TRUE; | |
| 36 | 2961 if (fp->fd_top + fp->fd_len - 1 > bot) |
| 7 | 2962 { |
| 2963 /* 5: Make fold that includes bot start below bot. */ | |
| 2964 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2965 (linenr_T)0, (long)(bot - fp->fd_top), | |
| 2966 (linenr_T)MAXLNUM, (long)(fp->fd_top - bot - 1)); | |
| 2967 fp->fd_len -= bot - fp->fd_top + 1; | |
| 2968 fp->fd_top = bot + 1; | |
| 2969 break; | |
| 2970 } | |
| 2971 | |
| 2972 /* 4: Delete completely contained fold. */ | |
| 2973 deleteFoldEntry(gap, (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
| 2974 } | |
| 2975 } | |
| 2976 } | |
| 2977 | |
|
11140
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2978 /* foldReverseOrder() {{{2 */ |
|
6b26e044b6f5
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parents:
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diff
changeset
|
2979 static void |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
2980 foldReverseOrder(garray_T *gap, linenr_T start, linenr_T end) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2981 { |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2982 fold_T *left, *right; |
|
6b26e044b6f5
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parents:
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diff
changeset
|
2983 fold_T tmp; |
|
6b26e044b6f5
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parents:
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diff
changeset
|
2984 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2985 for (; start < end; start++, end--) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2986 { |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2987 left = (fold_T *)gap->ga_data + start; |
|
6b26e044b6f5
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parents:
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changeset
|
2988 right = (fold_T *)gap->ga_data + end; |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
2989 tmp = *left; |
|
6b26e044b6f5
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parents:
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diff
changeset
|
2990 *left = *right; |
|
6b26e044b6f5
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parents:
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diff
changeset
|
2991 *right = tmp; |
|
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2992 } |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2993 } |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2994 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2995 /* foldMoveRange_int() {{{2 */ |
|
6b26e044b6f5
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changeset
|
2996 /* |
|
6b26e044b6f5
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changeset
|
2997 * Move folds within the inclusive range "line1" to "line2" to after "dest" |
|
6b26e044b6f5
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changeset
|
2998 * requires "line1" <= "line2" <= "dest" |
|
6b26e044b6f5
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diff
changeset
|
2999 * |
|
6b26e044b6f5
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parents:
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diff
changeset
|
3000 * There are the following situations for the first fold at or below line1 - 1. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3001 * 1 2 3 4 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3002 * 1 2 3 4 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3003 * line1 2 3 4 |
|
6b26e044b6f5
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parents:
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changeset
|
3004 * 2 3 4 5 6 7 |
|
6b26e044b6f5
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parents:
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changeset
|
3005 * line2 3 4 5 6 7 |
|
6b26e044b6f5
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parents:
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changeset
|
3006 * 3 4 6 7 8 9 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3007 * dest 4 7 8 9 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3008 * 4 7 8 10 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3009 * 4 7 8 10 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3010 * |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3011 * In the following descriptions, "moved" means moving in the buffer, *and* in |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3012 * the fold array. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3013 * Meanwhile, "shifted" just means moving in the buffer. |
|
6b26e044b6f5
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parents:
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diff
changeset
|
3014 * 1. not changed |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3015 * 2. truncated above line1 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3016 * 3. length reduced by line2 - line1, folds starting between the end of 3 and |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3017 * dest are truncated and shifted up |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3018 * 4. internal folds moved (from [line1, line2] to dest) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3019 * 5. moved to dest. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3020 * 6. truncated below line2 and moved. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3021 * 7. length reduced by line2 - dest, folds starting between line2 and dest are |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3022 * removed, top is moved down by move_len. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3023 * 8. truncated below dest and shifted up. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3024 * 9. shifted up |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3025 * 10. not changed |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3026 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3027 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3028 static void |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3029 truncate_fold(fold_T *fp, linenr_T end) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3030 { |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3031 foldRemove(&fp->fd_nested, end - fp->fd_top, MAXLNUM); |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3032 fp->fd_len = end - fp->fd_top + 1; |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3033 } |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3034 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3035 #define fold_end(fp) ((fp)->fd_top + (fp)->fd_len - 1) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3036 #define valid_fold(fp, gap) ((fp) < ((fold_T *)(gap)->ga_data + (gap)->ga_len)) |
|
6b26e044b6f5
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parents:
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changeset
|
3037 #define fold_index(fp, gap) ((size_t)(fp - ((fold_T *)(gap)->ga_data))) |
|
6b26e044b6f5
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parents:
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diff
changeset
|
3038 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3039 static void |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3040 foldMoveRange_int(garray_T *gap, linenr_T line1, linenr_T line2, linenr_T dest) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3041 { |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3042 fold_T *fp; |
|
6b26e044b6f5
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diff
changeset
|
3043 linenr_T range_len = line2 - line1 + 1; |
|
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Christian Brabandt <cb@256bit.org>
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changeset
|
3044 linenr_T move_len = dest - line2; |
|
6b26e044b6f5
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parents:
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diff
changeset
|
3045 int at_start = foldFind(gap, line1 - 1, &fp); |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
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11131
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changeset
|
3046 size_t move_start = 0, move_end = 0, dest_index = 0; |
|
6b26e044b6f5
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changeset
|
3047 |
|
6b26e044b6f5
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changeset
|
3048 if (at_start) |
|
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changeset
|
3049 { |
|
6b26e044b6f5
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changeset
|
3050 if (fold_end(fp) > dest) |
|
6b26e044b6f5
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changeset
|
3051 { |
|
6b26e044b6f5
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changeset
|
3052 /* Case 4 |
|
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changeset
|
3053 * don't have to change this fold, but have to move nested folds. |
|
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changeset
|
3054 */ |
|
6b26e044b6f5
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changeset
|
3055 foldMoveRange(&fp->fd_nested, line1 - fp->fd_top, line2 - |
|
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changeset
|
3056 fp->fd_top, dest - fp->fd_top); |
|
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changeset
|
3057 return; |
|
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changeset
|
3058 } |
|
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changeset
|
3059 else if (fold_end(fp) > line2) |
|
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changeset
|
3060 { |
|
6b26e044b6f5
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changeset
|
3061 /* Case 3 |
|
6b26e044b6f5
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changeset
|
3062 * Remove nested folds between line1 and line2 & reduce the |
|
6b26e044b6f5
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changeset
|
3063 * length of fold by "range_len". |
|
6b26e044b6f5
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changeset
|
3064 * Folds after this one must be dealt with. |
|
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changeset
|
3065 */ |
|
6b26e044b6f5
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changeset
|
3066 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, line2 - |
|
6b26e044b6f5
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changeset
|
3067 fp->fd_top, MAXLNUM, -range_len); |
|
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changeset
|
3068 fp->fd_len -= range_len; |
|
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changeset
|
3069 } |
|
6b26e044b6f5
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changeset
|
3070 else |
|
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changeset
|
3071 /* Case 2 truncate fold, folds after this one must be dealt with. */ |
|
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changeset
|
3072 truncate_fold(fp, line1); |
|
6b26e044b6f5
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changeset
|
3073 |
|
6b26e044b6f5
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11131
diff
changeset
|
3074 /* Look at the next fold, and treat that one as if it were the first |
|
6b26e044b6f5
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parents:
11131
diff
changeset
|
3075 * after "line1" (because now it is). */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3076 fp = fp + 1; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3079 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
|
3080 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3081 /* Case 10 |
|
6b26e044b6f5
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parents:
11131
diff
changeset
|
3082 * No folds after "line1" and before "dest" |
|
6b26e044b6f5
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parents:
11131
diff
changeset
|
3083 */ |
|
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 (fp->fd_top > line2) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3087 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3088 for (; valid_fold(fp, gap) && fold_end(fp) < dest; fp++) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3089 /* Case 9. (for all case 9's) -- shift up. */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3090 fp->fd_top -= range_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3091 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3092 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
|
3093 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3094 /* Case 8. -- ensure truncated at dest, shift up */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3095 truncate_fold(fp, dest); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3096 fp->fd_top -= range_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3097 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3098 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3099 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3100 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
|
3101 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3102 /* Case 7 -- remove nested folds and shrink */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3103 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
|
3104 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
|
3105 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
|
3106 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
|
3107 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3108 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3109 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3110 /* Case 5 or 6 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3111 * changes rely on whether there are folds between the end of |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3112 * this fold and "dest". |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3113 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3114 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
|
3115 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3116 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
|
3117 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3118 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
|
3119 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3120 /* 1. 2. or 3. */ |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3121 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
|
3122 /* 2. or 3., truncate before moving */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3123 truncate_fold(fp, line2); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3124 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3125 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
|
3126 continue; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3127 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3128 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3129 /* Record index of the first fold after the moved range. */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3130 if (move_end == 0) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3131 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
|
3132 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3133 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
|
3134 truncate_fold(fp, dest); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3135 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3136 fp->fd_top -= range_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3137 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3138 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3139 dest_index = fold_index(fp, gap); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3140 |
|
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 * All folds are now correct, but they are not necessarily in the correct |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3143 * order. We have to swap folds in the range [move_end, dest_index) with |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3144 * those in the range [move_start, move_end). |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3145 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3146 foldReverseOrder(gap, move_start, dest_index - 1); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3147 foldReverseOrder(gap, move_start, move_start + dest_index - move_end - 1); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3148 foldReverseOrder(gap, move_start + dest_index - move_end, dest_index - 1); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3149 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3150 #undef fold_end |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3151 #undef valid_fold |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3152 #undef fold_index |
|
6b26e044b6f5
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parents:
11131
diff
changeset
|
3153 |
| 7 | 3154 /* foldMerge() {{{2 */ |
| 3155 /* | |
| 1224 | 3156 * Merge two adjacent folds (and the nested ones in them). |
| 3157 * This only works correctly when the folds are really adjacent! Thus "fp1" | |
| 7 | 3158 * must end just above "fp2". |
| 3159 * The resulting fold is "fp1", nested folds are moved from "fp2" to "fp1". | |
| 3160 * Fold entry "fp2" in "gap" is deleted. | |
| 3161 */ | |
| 3162 static void | |
|
7821
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3163 foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2) |
| 7 | 3164 { |
| 3165 fold_T *fp3; | |
| 3166 fold_T *fp4; | |
| 3167 int idx; | |
| 3168 garray_T *gap1 = &fp1->fd_nested; | |
| 3169 garray_T *gap2 = &fp2->fd_nested; | |
| 3170 | |
| 3171 /* If the last nested fold in fp1 touches the first nested fold in fp2, | |
| 3172 * merge them recursively. */ | |
| 3173 if (foldFind(gap1, fp1->fd_len - 1L, &fp3) && foldFind(gap2, 0L, &fp4)) | |
| 3174 foldMerge(fp3, gap2, fp4); | |
| 3175 | |
| 3176 /* Move nested folds in fp2 to the end of fp1. */ | |
| 3177 if (gap2->ga_len > 0 && ga_grow(gap1, gap2->ga_len) == OK) | |
| 3178 { | |
| 3179 for (idx = 0; idx < gap2->ga_len; ++idx) | |
| 3180 { | |
| 3181 ((fold_T *)gap1->ga_data)[gap1->ga_len] | |
| 3182 = ((fold_T *)gap2->ga_data)[idx]; | |
| 3183 ((fold_T *)gap1->ga_data)[gap1->ga_len].fd_top += fp1->fd_len; | |
| 3184 ++gap1->ga_len; | |
| 3185 } | |
| 3186 gap2->ga_len = 0; | |
| 3187 } | |
| 3188 | |
| 3189 fp1->fd_len += fp2->fd_len; | |
| 3190 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
| 3191 fold_changed = TRUE; | |
| 3192 } | |
| 3193 | |
| 3194 /* foldlevelIndent() {{{2 */ | |
| 3195 /* | |
| 3196 * Low level function to get the foldlevel for the "indent" method. | |
| 3197 * Doesn't use any caching. | |
| 3198 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
| 3199 */ | |
| 3200 static void | |
|
7821
81794242a275
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
3201 foldlevelIndent(fline_T *flp) |
| 7 | 3202 { |
| 3203 char_u *s; | |
| 3204 buf_T *buf; | |
| 3205 linenr_T lnum = flp->lnum + flp->off; | |
| 3206 | |
| 3207 buf = flp->wp->w_buffer; | |
| 3208 s = skipwhite(ml_get_buf(buf, lnum, FALSE)); | |
| 3209 | |
| 3210 /* empty line or lines starting with a character in 'foldignore': level | |
| 3211 * depends on surrounding lines */ | |
| 3212 if (*s == NUL || vim_strchr(flp->wp->w_p_fdi, *s) != NULL) | |
| 3213 { | |
| 3214 /* first and last line can't be undefined, use level 0 */ | |
| 3215 if (lnum == 1 || lnum == buf->b_ml.ml_line_count) | |
| 3216 flp->lvl = 0; | |
| 3217 else | |
| 3218 flp->lvl = -1; | |
| 3219 } | |
| 3220 else | |
| 5438 | 3221 flp->lvl = get_indent_buf(buf, lnum) / get_sw_value(curbuf); |
| 7 | 3222 if (flp->lvl > flp->wp->w_p_fdn) |
| 1028 | 3223 { |
| 7 | 3224 flp->lvl = flp->wp->w_p_fdn; |
| 1028 | 3225 if (flp->lvl < 0) |
| 3226 flp->lvl = 0; | |
| 3227 } | |
| 7 | 3228 } |
| 3229 | |
| 3230 /* foldlevelDiff() {{{2 */ | |
| 3231 #ifdef FEAT_DIFF | |
| 3232 /* | |
| 3233 * Low level function to get the foldlevel for the "diff" method. | |
| 3234 * Doesn't use any caching. | |
| 3235 */ | |
| 3236 static void | |
|
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81794242a275
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
3237 foldlevelDiff(fline_T *flp) |
| 7 | 3238 { |
| 3239 if (diff_infold(flp->wp, flp->lnum + flp->off)) | |
| 3240 flp->lvl = 1; | |
| 3241 else | |
| 3242 flp->lvl = 0; | |
| 3243 } | |
| 3244 #endif | |
| 3245 | |
| 3246 /* foldlevelExpr() {{{2 */ | |
| 3247 /* | |
| 3248 * Low level function to get the foldlevel for the "expr" method. | |
| 3249 * Doesn't use any caching. | |
| 3250 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
| 3251 */ | |
| 3252 static void | |
|
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
3253 foldlevelExpr(fline_T *flp) |
| 7 | 3254 { |
| 3255 #ifndef FEAT_EVAL | |
| 3256 flp->start = FALSE; | |
| 3257 flp->lvl = 0; | |
| 3258 #else | |
| 3259 win_T *win; | |
| 3260 int n; | |
| 3261 int c; | |
| 3262 linenr_T lnum = flp->lnum + flp->off; | |
| 3263 int save_keytyped; | |
| 3264 | |
| 3265 win = curwin; | |
| 3266 curwin = flp->wp; | |
| 3267 curbuf = flp->wp->w_buffer; | |
| 3268 set_vim_var_nr(VV_LNUM, lnum); | |
| 3269 | |
| 3270 flp->start = 0; | |
| 3271 flp->had_end = flp->end; | |
| 3272 flp->end = MAX_LEVEL + 1; | |
| 3273 if (lnum <= 1) | |
| 3274 flp->lvl = 0; | |
| 3275 | |
| 3276 /* KeyTyped may be reset to 0 when calling a function which invokes | |
| 3277 * do_cmdline(). To make 'foldopen' work correctly restore KeyTyped. */ | |
| 3278 save_keytyped = KeyTyped; | |
|
9389
32e34e574716
commit https://github.com/vim/vim/commit/22fcfad29276bd5f317faf516637dcd491b96a12
Christian Brabandt <cb@256bit.org>
parents:
9252
diff
changeset
|
3279 n = (int)eval_foldexpr(flp->wp->w_p_fde, &c); |
| 7 | 3280 KeyTyped = save_keytyped; |
| 3281 | |
| 3282 switch (c) | |
| 3283 { | |
| 3284 /* "a1", "a2", .. : add to the fold level */ | |
| 3285 case 'a': if (flp->lvl >= 0) | |
| 3286 { | |
| 3287 flp->lvl += n; | |
| 3288 flp->lvl_next = flp->lvl; | |
| 3289 } | |
| 3290 flp->start = n; | |
| 3291 break; | |
| 3292 | |
| 3293 /* "s1", "s2", .. : subtract from the fold level */ | |
| 3294 case 's': if (flp->lvl >= 0) | |
| 3295 { | |
| 3296 if (n > flp->lvl) | |
| 3297 flp->lvl_next = 0; | |
| 3298 else | |
| 3299 flp->lvl_next = flp->lvl - n; | |
| 3300 flp->end = flp->lvl_next + 1; | |
| 3301 } | |
| 3302 break; | |
| 3303 | |
| 3304 /* ">1", ">2", .. : start a fold with a certain level */ | |
| 3305 case '>': flp->lvl = n; | |
| 3306 flp->lvl_next = n; | |
| 3307 flp->start = 1; | |
| 3308 break; | |
| 3309 | |
| 3310 /* "<1", "<2", .. : end a fold with a certain level */ | |
| 3311 case '<': flp->lvl_next = n - 1; | |
| 3312 flp->end = n; | |
| 3313 break; | |
| 3314 | |
| 3315 /* "=": No change in level */ | |
| 3316 case '=': flp->lvl_next = flp->lvl; | |
| 3317 break; | |
| 3318 | |
| 3319 /* "-1", "0", "1", ..: set fold level */ | |
| 3320 default: if (n < 0) | |
| 3321 /* Use the current level for the next line, so that "a1" | |
| 3322 * will work there. */ | |
| 3323 flp->lvl_next = flp->lvl; | |
| 3324 else | |
| 3325 flp->lvl_next = n; | |
| 3326 flp->lvl = n; | |
| 3327 break; | |
| 3328 } | |
| 3329 | |
| 3330 /* If the level is unknown for the first or the last line in the file, use | |
| 3331 * level 0. */ | |
| 3332 if (flp->lvl < 0) | |
| 3333 { | |
| 3334 if (lnum <= 1) | |
| 3335 { | |
| 3336 flp->lvl = 0; | |
| 3337 flp->lvl_next = 0; | |
| 3338 } | |
| 3339 if (lnum == curbuf->b_ml.ml_line_count) | |
| 3340 flp->lvl_next = 0; | |
| 3341 } | |
| 3342 | |
| 3343 curwin = win; | |
| 3344 curbuf = curwin->w_buffer; | |
| 3345 #endif | |
| 3346 } | |
| 3347 | |
| 3348 /* parseMarker() {{{2 */ | |
| 3349 /* | |
| 3350 * Parse 'foldmarker' and set "foldendmarker", "foldstartmarkerlen" and | |
| 3351 * "foldendmarkerlen". | |
| 3352 * Relies on the option value to have been checked for correctness already. | |
| 3353 */ | |
| 3354 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3355 parseMarker(win_T *wp) |
| 7 | 3356 { |
| 3357 foldendmarker = vim_strchr(wp->w_p_fmr, ','); | |
| 3358 foldstartmarkerlen = (int)(foldendmarker++ - wp->w_p_fmr); | |
| 3359 foldendmarkerlen = (int)STRLEN(foldendmarker); | |
| 3360 } | |
| 3361 | |
| 3362 /* foldlevelMarker() {{{2 */ | |
| 3363 /* | |
| 3364 * Low level function to get the foldlevel for the "marker" method. | |
| 3365 * "foldendmarker", "foldstartmarkerlen" and "foldendmarkerlen" must have been | |
| 3366 * set before calling this. | |
| 3367 * Requires that flp->lvl is set to the fold level of the previous line! | |
| 3368 * Careful: This means you can't call this function twice on the same line. | |
| 3369 * Doesn't use any caching. | |
| 3370 * Sets flp->start when a start marker was found. | |
| 3371 */ | |
| 3372 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3373 foldlevelMarker(fline_T *flp) |
| 7 | 3374 { |
| 3375 char_u *startmarker; | |
| 3376 int cstart; | |
| 3377 int cend; | |
| 3378 int start_lvl = flp->lvl; | |
| 3379 char_u *s; | |
| 3380 int n; | |
| 3381 | |
| 3382 /* cache a few values for speed */ | |
| 3383 startmarker = flp->wp->w_p_fmr; | |
| 3384 cstart = *startmarker; | |
| 3385 ++startmarker; | |
| 3386 cend = *foldendmarker; | |
| 3387 | |
| 3388 /* Default: no start found, next level is same as current level */ | |
| 3389 flp->start = 0; | |
| 3390 flp->lvl_next = flp->lvl; | |
| 3391 | |
| 3392 s = ml_get_buf(flp->wp->w_buffer, flp->lnum + flp->off, FALSE); | |
| 3393 while (*s) | |
| 3394 { | |
| 3395 if (*s == cstart | |
| 3396 && STRNCMP(s + 1, startmarker, foldstartmarkerlen - 1) == 0) | |
| 3397 { | |
| 3398 /* found startmarker: set flp->lvl */ | |
| 3399 s += foldstartmarkerlen; | |
| 3400 if (VIM_ISDIGIT(*s)) | |
| 3401 { | |
| 3402 n = atoi((char *)s); | |
| 3403 if (n > 0) | |
| 3404 { | |
| 3405 flp->lvl = n; | |
| 3406 flp->lvl_next = n; | |
| 3407 if (n <= start_lvl) | |
| 3408 flp->start = 1; | |
| 3409 else | |
| 3410 flp->start = n - start_lvl; | |
| 3411 } | |
| 3412 } | |
| 3413 else | |
| 3414 { | |
| 3415 ++flp->lvl; | |
| 3416 ++flp->lvl_next; | |
| 3417 ++flp->start; | |
| 3418 } | |
| 3419 } | |
| 3420 else if (*s == cend | |
| 3421 && STRNCMP(s + 1, foldendmarker + 1, foldendmarkerlen - 1) == 0) | |
| 3422 { | |
| 3423 /* found endmarker: set flp->lvl_next */ | |
| 3424 s += foldendmarkerlen; | |
| 3425 if (VIM_ISDIGIT(*s)) | |
| 3426 { | |
| 3427 n = atoi((char *)s); | |
| 3428 if (n > 0) | |
| 3429 { | |
| 3430 flp->lvl = n; | |
| 3431 flp->lvl_next = n - 1; | |
| 3432 /* never start a fold with an end marker */ | |
|
2054
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Bram Moolenaar <bram@zimbu.org>
parents:
1985
diff
changeset
|
3433 if (flp->lvl_next > start_lvl) |
|
79b8d69a4588
updated for version 7.2.340
Bram Moolenaar <bram@zimbu.org>
parents:
1985
diff
changeset
|
3434 flp->lvl_next = start_lvl; |
| 7 | 3435 } |
| 3436 } | |
| 3437 else | |
| 3438 --flp->lvl_next; | |
| 3439 } | |
| 3440 else | |
|
11127
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patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
3441 MB_PTR_ADV(s); |
| 7 | 3442 } |
| 3443 | |
| 3444 /* The level can't go negative, must be missing a start marker. */ | |
| 3445 if (flp->lvl_next < 0) | |
| 3446 flp->lvl_next = 0; | |
| 3447 } | |
| 3448 | |
| 3449 /* foldlevelSyntax() {{{2 */ | |
| 3450 /* | |
| 3451 * Low level function to get the foldlevel for the "syntax" method. | |
| 3452 * Doesn't use any caching. | |
| 3453 */ | |
| 3454 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3455 foldlevelSyntax(fline_T *flp) |
| 7 | 3456 { |
| 3457 #ifndef FEAT_SYN_HL | |
| 3458 flp->start = 0; | |
| 3459 flp->lvl = 0; | |
| 3460 #else | |
| 3461 linenr_T lnum = flp->lnum + flp->off; | |
| 3462 int n; | |
| 3463 | |
| 3464 /* Use the maximum fold level at the start of this line and the next. */ | |
| 3465 flp->lvl = syn_get_foldlevel(flp->wp, lnum); | |
| 3466 flp->start = 0; | |
| 3467 if (lnum < flp->wp->w_buffer->b_ml.ml_line_count) | |
| 3468 { | |
| 3469 n = syn_get_foldlevel(flp->wp, lnum + 1); | |
| 3470 if (n > flp->lvl) | |
| 3471 { | |
| 3472 flp->start = n - flp->lvl; /* fold(s) start here */ | |
| 3473 flp->lvl = n; | |
| 3474 } | |
| 3475 } | |
| 3476 #endif | |
| 3477 } | |
| 3478 | |
| 3479 /* functions for storing the fold state in a View {{{1 */ | |
| 3480 /* put_folds() {{{2 */ | |
| 3481 #if defined(FEAT_SESSION) || defined(PROTO) | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3482 static int put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off); |
|
a1e71a01dbd6
commit https://github.com/vim/vim/commit/d25c16e2f2776d50245bf31d6e4d5364f12d188e
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3483 static int put_foldopen_recurse(FILE *fd, win_T *wp, garray_T *gap, linenr_T off); |
|
a1e71a01dbd6
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Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3484 static int put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off); |
| 7 | 3485 |
| 3486 /* | |
| 3487 * Write commands to "fd" to restore the manual folds in window "wp". | |
| 3488 * Return FAIL if writing fails. | |
| 3489 */ | |
| 3490 int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3491 put_folds(FILE *fd, win_T *wp) |
| 7 | 3492 { |
| 3493 if (foldmethodIsManual(wp)) | |
| 3494 { | |
| 3495 if (put_line(fd, "silent! normal! zE") == FAIL | |
| 3496 || put_folds_recurse(fd, &wp->w_folds, (linenr_T)0) == FAIL) | |
| 3497 return FAIL; | |
| 3498 } | |
| 3499 | |
| 3500 /* If some folds are manually opened/closed, need to restore that. */ | |
| 3501 if (wp->w_fold_manual) | |
| 3392 | 3502 return put_foldopen_recurse(fd, wp, &wp->w_folds, (linenr_T)0); |
| 7 | 3503 |
| 3504 return OK; | |
| 3505 } | |
| 3506 | |
| 3507 /* put_folds_recurse() {{{2 */ | |
| 3508 /* | |
| 3509 * Write commands to "fd" to recreate manually created folds. | |
| 3510 * Returns FAIL when writing failed. | |
| 3511 */ | |
| 3512 static int | |
|
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parents:
7807
diff
changeset
|
3513 put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off) |
| 7 | 3514 { |
| 3515 int i; | |
| 3516 fold_T *fp; | |
| 3517 | |
| 3518 fp = (fold_T *)gap->ga_data; | |
| 3519 for (i = 0; i < gap->ga_len; i++) | |
| 3520 { | |
| 3521 /* Do nested folds first, they will be created closed. */ | |
| 3522 if (put_folds_recurse(fd, &fp->fd_nested, off + fp->fd_top) == FAIL) | |
| 3523 return FAIL; | |
| 3524 if (fprintf(fd, "%ld,%ldfold", fp->fd_top + off, | |
| 3525 fp->fd_top + off + fp->fd_len - 1) < 0 | |
| 3526 || put_eol(fd) == FAIL) | |
| 3527 return FAIL; | |
| 3528 ++fp; | |
| 3529 } | |
| 3530 return OK; | |
| 3531 } | |
| 3532 | |
| 3533 /* put_foldopen_recurse() {{{2 */ | |
| 3534 /* | |
| 3535 * Write commands to "fd" to open and close manually opened/closed folds. | |
| 3536 * Returns FAIL when writing failed. | |
| 3537 */ | |
| 3538 static int | |
|
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parents:
7807
diff
changeset
|
3539 put_foldopen_recurse( |
|
81794242a275
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parents:
7807
diff
changeset
|
3540 FILE *fd, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3541 win_T *wp, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
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parents:
7807
diff
changeset
|
3542 garray_T *gap, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3543 linenr_T off) |
| 7 | 3544 { |
| 3545 int i; | |
| 3392 | 3546 int level; |
| 7 | 3547 fold_T *fp; |
| 3548 | |
| 3549 fp = (fold_T *)gap->ga_data; | |
| 3550 for (i = 0; i < gap->ga_len; i++) | |
| 3551 { | |
| 3552 if (fp->fd_flags != FD_LEVEL) | |
| 3553 { | |
| 3554 if (fp->fd_nested.ga_len > 0) | |
| 3555 { | |
| 3392 | 3556 /* open nested folds while this fold is open */ |
| 7 | 3557 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 |
| 3558 || put_eol(fd) == FAIL | |
| 3766 | 3559 || put_line(fd, "normal! zo") == FAIL) |
| 7 | 3560 return FAIL; |
| 3392 | 3561 if (put_foldopen_recurse(fd, wp, &fp->fd_nested, |
| 3562 off + fp->fd_top) | |
| 7 | 3563 == FAIL) |
| 3564 return FAIL; | |
| 3392 | 3565 /* close the parent when needed */ |
| 3566 if (fp->fd_flags == FD_CLOSED) | |
| 3567 { | |
| 3568 if (put_fold_open_close(fd, fp, off) == FAIL) | |
| 3569 return FAIL; | |
| 3570 } | |
| 3571 } | |
| 3572 else | |
| 3573 { | |
| 3574 /* Open or close the leaf according to the window foldlevel. | |
| 3575 * Do not close a leaf that is already closed, as it will close | |
| 3576 * the parent. */ | |
| 3577 level = foldLevelWin(wp, off + fp->fd_top); | |
| 3578 if ((fp->fd_flags == FD_CLOSED && wp->w_p_fdl >= level) | |
| 3579 || (fp->fd_flags != FD_CLOSED && wp->w_p_fdl < level)) | |
| 3580 if (put_fold_open_close(fd, fp, off) == FAIL) | |
| 3581 return FAIL; | |
| 7 | 3582 } |
| 3583 } | |
| 3584 ++fp; | |
| 3585 } | |
| 3586 | |
| 3587 return OK; | |
| 3588 } | |
| 3392 | 3589 |
| 3590 /* put_fold_open_close() {{{2 */ | |
| 3591 /* | |
| 3592 * Write the open or close command to "fd". | |
| 3593 * Returns FAIL when writing failed. | |
| 3594 */ | |
| 3595 static int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3596 put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off) |
| 3392 | 3597 { |
| 3598 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 | |
| 3599 || put_eol(fd) == FAIL | |
| 3766 | 3600 || fprintf(fd, "normal! z%c", |
| 3392 | 3601 fp->fd_flags == FD_CLOSED ? 'c' : 'o') < 0 |
| 3602 || put_eol(fd) == FAIL) | |
| 3603 return FAIL; | |
| 3604 | |
| 3605 return OK; | |
| 3606 } | |
| 7 | 3607 #endif /* FEAT_SESSION */ |
| 3608 | |
| 3609 /* }}}1 */ | |
| 3610 #endif /* defined(FEAT_FOLDING) || defined(PROTO) */ |