Mercurial > vim
annotate src/fold.c @ 16357:38c863160f94
Added tag v8.1.1183 for changeset 1759d0ec0a6fb11b96f0ec98d1d9eeb06d943010
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 17 Apr 2019 18:45:05 +0200 |
| parents | 1ec942f1b648 |
| children | ef00b6bc186b |
| rev | line source |
|---|---|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * vim600:fdm=marker fdl=1 fdc=3: |
| 3 * | |
| 4 * VIM - Vi IMproved by Bram Moolenaar | |
| 5 * | |
| 6 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 7 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 8 * See README.txt for an overview of the Vim source code. | |
| 9 */ | |
| 10 | |
| 11 /* | |
| 12 * fold.c: code for folding | |
| 13 */ | |
| 14 | |
| 15 #include "vim.h" | |
| 16 | |
| 17 #if defined(FEAT_FOLDING) || defined(PROTO) | |
| 18 | |
| 19 /* local declarations. {{{1 */ | |
| 20 /* typedef fold_T {{{2 */ | |
| 21 /* | |
| 22 * The toplevel folds for each window are stored in the w_folds growarray. | |
| 23 * Each toplevel fold can contain an array of second level folds in the | |
| 24 * fd_nested growarray. | |
| 25 * The info stored in both growarrays is the same: An array of fold_T. | |
| 26 */ | |
| 27 typedef struct | |
| 28 { | |
| 29 linenr_T fd_top; /* first line of fold; for nested fold | |
| 30 * relative to parent */ | |
| 31 linenr_T fd_len; /* number of lines in the fold */ | |
| 32 garray_T fd_nested; /* array of nested folds */ | |
| 33 char fd_flags; /* see below */ | |
| 34 char fd_small; /* TRUE, FALSE or MAYBE: fold smaller than | |
| 35 'foldminlines'; MAYBE applies to nested | |
| 36 folds too */ | |
| 37 } fold_T; | |
| 38 | |
| 39 #define FD_OPEN 0 /* fold is open (nested ones can be closed) */ | |
| 40 #define FD_CLOSED 1 /* fold is closed */ | |
| 41 #define FD_LEVEL 2 /* depends on 'foldlevel' (nested folds too) */ | |
| 42 | |
| 43 #define MAX_LEVEL 20 /* maximum fold depth */ | |
| 44 | |
| 45 /* static functions {{{2 */ | |
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46 static void newFoldLevelWin(win_T *wp); |
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47 static int checkCloseRec(garray_T *gap, linenr_T lnum, int level); |
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48 static int foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp); |
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49 static int foldLevelWin(win_T *wp, linenr_T lnum); |
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50 static void checkupdate(win_T *wp); |
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51 static void setFoldRepeat(linenr_T lnum, long count, int do_open); |
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52 static linenr_T setManualFold(linenr_T lnum, int opening, int recurse, int *donep); |
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53 static linenr_T setManualFoldWin(win_T *wp, linenr_T lnum, int opening, int recurse, int *donep); |
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54 static void foldOpenNested(fold_T *fpr); |
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55 static void deleteFoldEntry(garray_T *gap, int idx, int recursive); |
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56 static void foldMarkAdjustRecurse(garray_T *gap, linenr_T line1, linenr_T line2, long amount, long amount_after); |
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57 static int getDeepestNestingRecurse(garray_T *gap); |
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58 static int check_closed(win_T *win, fold_T *fp, int *use_levelp, int level, int *maybe_smallp, linenr_T lnum_off); |
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59 static void checkSmall(win_T *wp, fold_T *fp, linenr_T lnum_off); |
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60 static void setSmallMaybe(garray_T *gap); |
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61 static void foldCreateMarkers(linenr_T start, linenr_T end); |
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62 static void foldAddMarker(linenr_T lnum, char_u *marker, int markerlen); |
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63 static void deleteFoldMarkers(fold_T *fp, int recursive, linenr_T lnum_off); |
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64 static void foldDelMarker(linenr_T lnum, char_u *marker, int markerlen); |
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65 static void foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot); |
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66 static void parseMarker(win_T *wp); |
| 7 | 67 |
| 68 static char *e_nofold = N_("E490: No fold found"); | |
| 69 | |
| 70 /* | |
| 71 * While updating the folds lines between invalid_top and invalid_bot have an | |
| 72 * undefined fold level. Only used for the window currently being updated. | |
| 73 */ | |
| 74 static linenr_T invalid_top = (linenr_T)0; | |
| 75 static linenr_T invalid_bot = (linenr_T)0; | |
| 76 | |
| 77 /* | |
| 78 * When using 'foldexpr' we sometimes get the level of the next line, which | |
| 79 * calls foldlevel() to get the level of the current line, which hasn't been | |
| 80 * stored yet. To get around this chicken-egg problem the level of the | |
| 81 * previous line is stored here when available. prev_lnum is zero when the | |
| 82 * level is not available. | |
| 83 */ | |
| 84 static linenr_T prev_lnum = 0; | |
| 85 static int prev_lnum_lvl = -1; | |
| 86 | |
| 87 /* Flags used for "done" argument of setManualFold. */ | |
| 88 #define DONE_NOTHING 0 | |
| 89 #define DONE_ACTION 1 /* did close or open a fold */ | |
| 90 #define DONE_FOLD 2 /* did find a fold */ | |
| 91 | |
| 92 static int foldstartmarkerlen; | |
| 93 static char_u *foldendmarker; | |
| 94 static int foldendmarkerlen; | |
| 95 | |
| 96 /* Exported folding functions. {{{1 */ | |
| 97 /* copyFoldingState() {{{2 */ | |
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98 |
| 7 | 99 /* |
| 100 * Copy that folding state from window "wp_from" to window "wp_to". | |
| 101 */ | |
| 102 void | |
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103 copyFoldingState(win_T *wp_from, win_T *wp_to) |
| 7 | 104 { |
| 105 wp_to->w_fold_manual = wp_from->w_fold_manual; | |
| 106 wp_to->w_foldinvalid = wp_from->w_foldinvalid; | |
| 107 cloneFoldGrowArray(&wp_from->w_folds, &wp_to->w_folds); | |
| 108 } | |
| 109 | |
| 110 /* hasAnyFolding() {{{2 */ | |
| 111 /* | |
| 112 * Return TRUE if there may be folded lines in the current window. | |
| 113 */ | |
| 114 int | |
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115 hasAnyFolding(win_T *win) |
| 7 | 116 { |
| 117 /* very simple now, but can become more complex later */ | |
| 118 return (win->w_p_fen | |
| 119 && (!foldmethodIsManual(win) || win->w_folds.ga_len > 0)); | |
| 120 } | |
| 121 | |
| 122 /* hasFolding() {{{2 */ | |
| 123 /* | |
| 124 * Return TRUE if line "lnum" in the current window is part of a closed | |
| 125 * fold. | |
| 126 * When returning TRUE, *firstp and *lastp are set to the first and last | |
| 127 * lnum of the sequence of folded lines (skipped when NULL). | |
| 128 */ | |
| 129 int | |
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130 hasFolding(linenr_T lnum, linenr_T *firstp, linenr_T *lastp) |
| 7 | 131 { |
| 132 return hasFoldingWin(curwin, lnum, firstp, lastp, TRUE, NULL); | |
| 133 } | |
| 134 | |
| 135 /* hasFoldingWin() {{{2 */ | |
| 136 int | |
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137 hasFoldingWin( |
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138 win_T *win, |
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139 linenr_T lnum, |
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140 linenr_T *firstp, |
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141 linenr_T *lastp, |
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142 int cache, /* when TRUE: use cached values of window */ |
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143 foldinfo_T *infop) /* where to store fold info */ |
| 7 | 144 { |
| 145 int had_folded = FALSE; | |
| 146 linenr_T first = 0; | |
| 147 linenr_T last = 0; | |
| 148 linenr_T lnum_rel = lnum; | |
| 149 int x; | |
| 150 fold_T *fp; | |
| 151 int level = 0; | |
| 152 int use_level = FALSE; | |
| 153 int maybe_small = FALSE; | |
| 154 garray_T *gap; | |
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155 int low_level = 0; |
| 7 | 156 |
| 157 checkupdate(win); | |
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158 |
| 7 | 159 /* |
| 160 * Return quickly when there is no folding at all in this window. | |
| 161 */ | |
| 162 if (!hasAnyFolding(win)) | |
| 163 { | |
| 164 if (infop != NULL) | |
| 165 infop->fi_level = 0; | |
| 166 return FALSE; | |
| 167 } | |
| 168 | |
| 169 if (cache) | |
| 170 { | |
| 171 /* | |
| 172 * First look in cached info for displayed lines. This is probably | |
| 173 * the fastest, but it can only be used if the entry is still valid. | |
| 174 */ | |
| 175 x = find_wl_entry(win, lnum); | |
| 176 if (x >= 0) | |
| 177 { | |
| 178 first = win->w_lines[x].wl_lnum; | |
| 179 last = win->w_lines[x].wl_lastlnum; | |
| 180 had_folded = win->w_lines[x].wl_folded; | |
| 181 } | |
| 182 } | |
| 183 | |
| 184 if (first == 0) | |
| 185 { | |
| 186 /* | |
| 187 * Recursively search for a fold that contains "lnum". | |
| 188 */ | |
| 189 gap = &win->w_folds; | |
| 190 for (;;) | |
| 191 { | |
| 192 if (!foldFind(gap, lnum_rel, &fp)) | |
| 193 break; | |
| 194 | |
| 195 /* Remember lowest level of fold that starts in "lnum". */ | |
| 196 if (lnum_rel == fp->fd_top && low_level == 0) | |
| 197 low_level = level + 1; | |
| 198 | |
| 199 first += fp->fd_top; | |
| 200 last += fp->fd_top; | |
| 201 | |
| 202 /* is this fold closed? */ | |
| 203 had_folded = check_closed(win, fp, &use_level, level, | |
| 204 &maybe_small, lnum - lnum_rel); | |
| 205 if (had_folded) | |
| 206 { | |
| 207 /* Fold closed: Set last and quit loop. */ | |
| 208 last += fp->fd_len - 1; | |
| 209 break; | |
| 210 } | |
| 211 | |
| 212 /* Fold found, but it's open: Check nested folds. Line number is | |
| 213 * relative to containing fold. */ | |
| 214 gap = &fp->fd_nested; | |
| 215 lnum_rel -= fp->fd_top; | |
| 216 ++level; | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 if (!had_folded) | |
| 221 { | |
| 222 if (infop != NULL) | |
| 223 { | |
| 224 infop->fi_level = level; | |
| 225 infop->fi_lnum = lnum - lnum_rel; | |
| 226 infop->fi_low_level = low_level == 0 ? level : low_level; | |
| 227 } | |
| 228 return FALSE; | |
| 229 } | |
| 230 | |
| 6753 | 231 if (last > win->w_buffer->b_ml.ml_line_count) |
| 232 last = win->w_buffer->b_ml.ml_line_count; | |
| 7 | 233 if (lastp != NULL) |
| 234 *lastp = last; | |
| 235 if (firstp != NULL) | |
| 236 *firstp = first; | |
| 237 if (infop != NULL) | |
| 238 { | |
| 239 infop->fi_level = level + 1; | |
| 240 infop->fi_lnum = first; | |
| 241 infop->fi_low_level = low_level == 0 ? level + 1 : low_level; | |
| 242 } | |
| 243 return TRUE; | |
| 244 } | |
| 245 | |
| 246 /* foldLevel() {{{2 */ | |
| 247 /* | |
| 248 * Return fold level at line number "lnum" in the current window. | |
| 249 */ | |
| 250 int | |
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251 foldLevel(linenr_T lnum) |
| 7 | 252 { |
| 253 /* While updating the folds lines between invalid_top and invalid_bot have | |
| 254 * an undefined fold level. Otherwise update the folds first. */ | |
| 255 if (invalid_top == (linenr_T)0) | |
| 256 checkupdate(curwin); | |
| 257 else if (lnum == prev_lnum && prev_lnum_lvl >= 0) | |
| 258 return prev_lnum_lvl; | |
| 259 else if (lnum >= invalid_top && lnum <= invalid_bot) | |
| 260 return -1; | |
| 261 | |
| 262 /* Return quickly when there is no folding at all in this window. */ | |
| 263 if (!hasAnyFolding(curwin)) | |
| 264 return 0; | |
| 265 | |
| 266 return foldLevelWin(curwin, lnum); | |
| 267 } | |
| 268 | |
| 269 /* lineFolded() {{{2 */ | |
| 270 /* | |
| 271 * Low level function to check if a line is folded. Doesn't use any caching. | |
| 272 * Return TRUE if line is folded. | |
| 273 * Return FALSE if line is not folded. | |
| 274 * Return MAYBE if the line is folded when next to a folded line. | |
| 275 */ | |
| 276 int | |
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277 lineFolded(win_T *win, linenr_T lnum) |
| 7 | 278 { |
| 279 return foldedCount(win, lnum, NULL) != 0; | |
| 280 } | |
| 281 | |
| 282 /* foldedCount() {{{2 */ | |
| 283 /* | |
| 284 * Count the number of lines that are folded at line number "lnum". | |
| 285 * Normally "lnum" is the first line of a possible fold, and the returned | |
| 286 * number is the number of lines in the fold. | |
| 287 * Doesn't use caching from the displayed window. | |
| 288 * Returns number of folded lines from "lnum", or 0 if line is not folded. | |
| 289 * When "infop" is not NULL, fills *infop with the fold level info. | |
| 290 */ | |
| 291 long | |
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292 foldedCount(win_T *win, linenr_T lnum, foldinfo_T *infop) |
| 7 | 293 { |
| 294 linenr_T last; | |
| 295 | |
| 296 if (hasFoldingWin(win, lnum, NULL, &last, FALSE, infop)) | |
| 297 return (long)(last - lnum + 1); | |
| 298 return 0; | |
| 299 } | |
| 300 | |
| 301 /* foldmethodIsManual() {{{2 */ | |
| 302 /* | |
| 303 * Return TRUE if 'foldmethod' is "manual" | |
| 304 */ | |
| 305 int | |
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306 foldmethodIsManual(win_T *wp) |
| 7 | 307 { |
| 308 return (wp->w_p_fdm[3] == 'u'); | |
| 309 } | |
| 310 | |
| 311 /* foldmethodIsIndent() {{{2 */ | |
| 312 /* | |
| 313 * Return TRUE if 'foldmethod' is "indent" | |
| 314 */ | |
| 315 int | |
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316 foldmethodIsIndent(win_T *wp) |
| 7 | 317 { |
| 318 return (wp->w_p_fdm[0] == 'i'); | |
| 319 } | |
| 320 | |
| 321 /* foldmethodIsExpr() {{{2 */ | |
| 322 /* | |
| 323 * Return TRUE if 'foldmethod' is "expr" | |
| 324 */ | |
| 325 int | |
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326 foldmethodIsExpr(win_T *wp) |
| 7 | 327 { |
| 328 return (wp->w_p_fdm[1] == 'x'); | |
| 329 } | |
| 330 | |
| 331 /* foldmethodIsMarker() {{{2 */ | |
| 332 /* | |
| 333 * Return TRUE if 'foldmethod' is "marker" | |
| 334 */ | |
| 335 int | |
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336 foldmethodIsMarker(win_T *wp) |
| 7 | 337 { |
| 338 return (wp->w_p_fdm[2] == 'r'); | |
| 339 } | |
| 340 | |
| 341 /* foldmethodIsSyntax() {{{2 */ | |
| 342 /* | |
| 343 * Return TRUE if 'foldmethod' is "syntax" | |
| 344 */ | |
| 345 int | |
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346 foldmethodIsSyntax(win_T *wp) |
| 7 | 347 { |
| 348 return (wp->w_p_fdm[0] == 's'); | |
| 349 } | |
| 350 | |
| 351 /* foldmethodIsDiff() {{{2 */ | |
| 352 /* | |
| 353 * Return TRUE if 'foldmethod' is "diff" | |
| 354 */ | |
| 355 int | |
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356 foldmethodIsDiff(win_T *wp) |
| 7 | 357 { |
| 358 return (wp->w_p_fdm[0] == 'd'); | |
| 359 } | |
| 360 | |
| 361 /* closeFold() {{{2 */ | |
| 362 /* | |
| 363 * Close fold for current window at line "lnum". | |
| 364 * Repeat "count" times. | |
| 365 */ | |
| 366 void | |
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367 closeFold(linenr_T lnum, long count) |
| 7 | 368 { |
| 369 setFoldRepeat(lnum, count, FALSE); | |
| 370 } | |
| 371 | |
| 372 /* closeFoldRecurse() {{{2 */ | |
| 373 /* | |
| 374 * Close fold for current window at line "lnum" recursively. | |
| 375 */ | |
| 376 void | |
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377 closeFoldRecurse(linenr_T lnum) |
| 7 | 378 { |
| 379 (void)setManualFold(lnum, FALSE, TRUE, NULL); | |
| 380 } | |
| 381 | |
| 382 /* opFoldRange() {{{2 */ | |
| 383 /* | |
| 384 * Open or Close folds for current window in lines "first" to "last". | |
| 385 * Used for "zo", "zO", "zc" and "zC" in Visual mode. | |
| 386 */ | |
| 387 void | |
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388 opFoldRange( |
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389 linenr_T first, |
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390 linenr_T last, |
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391 int opening, /* TRUE to open, FALSE to close */ |
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392 int recurse, /* TRUE to do it recursively */ |
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393 int had_visual) /* TRUE when Visual selection used */ |
| 7 | 394 { |
| 395 int done = DONE_NOTHING; /* avoid error messages */ | |
| 396 linenr_T lnum; | |
| 397 linenr_T lnum_next; | |
| 398 | |
| 399 for (lnum = first; lnum <= last; lnum = lnum_next + 1) | |
| 400 { | |
| 401 lnum_next = lnum; | |
| 402 /* Opening one level only: next fold to open is after the one going to | |
| 403 * be opened. */ | |
| 404 if (opening && !recurse) | |
| 405 (void)hasFolding(lnum, NULL, &lnum_next); | |
| 406 (void)setManualFold(lnum, opening, recurse, &done); | |
| 407 /* Closing one level only: next line to close a fold is after just | |
| 408 * closed fold. */ | |
| 409 if (!opening && !recurse) | |
| 410 (void)hasFolding(lnum, NULL, &lnum_next); | |
| 411 } | |
| 412 if (done == DONE_NOTHING) | |
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413 emsg(_(e_nofold)); |
| 7 | 414 /* Force a redraw to remove the Visual highlighting. */ |
| 415 if (had_visual) | |
| 416 redraw_curbuf_later(INVERTED); | |
| 417 } | |
| 418 | |
| 419 /* openFold() {{{2 */ | |
| 420 /* | |
| 421 * Open fold for current window at line "lnum". | |
| 422 * Repeat "count" times. | |
| 423 */ | |
| 424 void | |
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425 openFold(linenr_T lnum, long count) |
| 7 | 426 { |
| 427 setFoldRepeat(lnum, count, TRUE); | |
| 428 } | |
| 429 | |
| 430 /* openFoldRecurse() {{{2 */ | |
| 431 /* | |
| 432 * Open fold for current window at line "lnum" recursively. | |
| 433 */ | |
| 434 void | |
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435 openFoldRecurse(linenr_T lnum) |
| 7 | 436 { |
| 437 (void)setManualFold(lnum, TRUE, TRUE, NULL); | |
| 438 } | |
| 439 | |
| 440 /* foldOpenCursor() {{{2 */ | |
| 441 /* | |
| 442 * Open folds until the cursor line is not in a closed fold. | |
| 443 */ | |
| 444 void | |
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445 foldOpenCursor(void) |
| 7 | 446 { |
| 447 int done; | |
| 448 | |
| 449 checkupdate(curwin); | |
| 450 if (hasAnyFolding(curwin)) | |
| 451 for (;;) | |
| 452 { | |
| 453 done = DONE_NOTHING; | |
| 454 (void)setManualFold(curwin->w_cursor.lnum, TRUE, FALSE, &done); | |
| 455 if (!(done & DONE_ACTION)) | |
| 456 break; | |
| 457 } | |
| 458 } | |
| 459 | |
| 460 /* newFoldLevel() {{{2 */ | |
| 461 /* | |
| 462 * Set new foldlevel for current window. | |
| 463 */ | |
| 464 void | |
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465 newFoldLevel(void) |
| 7 | 466 { |
| 467 newFoldLevelWin(curwin); | |
| 468 | |
| 469 #ifdef FEAT_DIFF | |
| 470 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
| 471 { | |
| 472 win_T *wp; | |
| 473 | |
| 474 /* | |
| 475 * Set the same foldlevel in other windows in diff mode. | |
| 476 */ | |
| 477 FOR_ALL_WINDOWS(wp) | |
| 478 { | |
| 479 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
| 480 { | |
| 481 wp->w_p_fdl = curwin->w_p_fdl; | |
| 482 newFoldLevelWin(wp); | |
| 483 } | |
| 484 } | |
| 485 } | |
| 486 #endif | |
| 487 } | |
| 488 | |
| 489 static void | |
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490 newFoldLevelWin(win_T *wp) |
| 7 | 491 { |
| 492 fold_T *fp; | |
| 493 int i; | |
| 494 | |
| 495 checkupdate(wp); | |
| 496 if (wp->w_fold_manual) | |
| 497 { | |
| 498 /* Set all flags for the first level of folds to FD_LEVEL. Following | |
| 499 * manual open/close will then change the flags to FD_OPEN or | |
| 500 * FD_CLOSED for those folds that don't use 'foldlevel'. */ | |
| 501 fp = (fold_T *)wp->w_folds.ga_data; | |
| 502 for (i = 0; i < wp->w_folds.ga_len; ++i) | |
| 503 fp[i].fd_flags = FD_LEVEL; | |
| 504 wp->w_fold_manual = FALSE; | |
| 505 } | |
| 506 changed_window_setting_win(wp); | |
| 507 } | |
| 508 | |
| 509 /* foldCheckClose() {{{2 */ | |
| 510 /* | |
| 511 * Apply 'foldlevel' to all folds that don't contain the cursor. | |
| 512 */ | |
| 513 void | |
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514 foldCheckClose(void) |
| 7 | 515 { |
| 516 if (*p_fcl != NUL) /* can only be "all" right now */ | |
| 517 { | |
| 518 checkupdate(curwin); | |
| 519 if (checkCloseRec(&curwin->w_folds, curwin->w_cursor.lnum, | |
| 520 (int)curwin->w_p_fdl)) | |
| 521 changed_window_setting(); | |
| 522 } | |
| 523 } | |
| 524 | |
| 525 /* checkCloseRec() {{{2 */ | |
| 526 static int | |
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527 checkCloseRec(garray_T *gap, linenr_T lnum, int level) |
| 7 | 528 { |
| 529 fold_T *fp; | |
| 530 int retval = FALSE; | |
| 531 int i; | |
| 532 | |
| 533 fp = (fold_T *)gap->ga_data; | |
| 534 for (i = 0; i < gap->ga_len; ++i) | |
| 535 { | |
| 536 /* Only manually opened folds may need to be closed. */ | |
| 537 if (fp[i].fd_flags == FD_OPEN) | |
| 538 { | |
| 539 if (level <= 0 && (lnum < fp[i].fd_top | |
| 540 || lnum >= fp[i].fd_top + fp[i].fd_len)) | |
| 541 { | |
| 542 fp[i].fd_flags = FD_LEVEL; | |
| 543 retval = TRUE; | |
| 544 } | |
| 545 else | |
| 546 retval |= checkCloseRec(&fp[i].fd_nested, lnum - fp[i].fd_top, | |
| 547 level - 1); | |
| 548 } | |
| 549 } | |
| 550 return retval; | |
| 551 } | |
| 552 | |
| 553 /* foldCreateAllowed() {{{2 */ | |
| 554 /* | |
| 555 * Return TRUE if it's allowed to manually create or delete a fold. | |
| 556 * Give an error message and return FALSE if not. | |
| 557 */ | |
| 558 int | |
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559 foldManualAllowed(int create) |
| 7 | 560 { |
| 561 if (foldmethodIsManual(curwin) || foldmethodIsMarker(curwin)) | |
| 562 return TRUE; | |
| 563 if (create) | |
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564 emsg(_("E350: Cannot create fold with current 'foldmethod'")); |
| 7 | 565 else |
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566 emsg(_("E351: Cannot delete fold with current 'foldmethod'")); |
| 7 | 567 return FALSE; |
| 568 } | |
| 569 | |
| 570 /* foldCreate() {{{2 */ | |
| 571 /* | |
| 572 * Create a fold from line "start" to line "end" (inclusive) in the current | |
| 573 * window. | |
| 574 */ | |
| 575 void | |
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576 foldCreate(linenr_T start, linenr_T end) |
| 7 | 577 { |
| 578 fold_T *fp; | |
| 579 garray_T *gap; | |
| 580 garray_T fold_ga; | |
| 581 int i, j; | |
| 582 int cont; | |
| 583 int use_level = FALSE; | |
| 584 int closed = FALSE; | |
| 585 int level = 0; | |
| 586 linenr_T start_rel = start; | |
| 587 linenr_T end_rel = end; | |
| 588 | |
| 589 if (start > end) | |
| 590 { | |
| 591 /* reverse the range */ | |
| 592 end = start_rel; | |
| 593 start = end_rel; | |
| 594 start_rel = start; | |
| 595 end_rel = end; | |
| 596 } | |
| 597 | |
| 598 /* When 'foldmethod' is "marker" add markers, which creates the folds. */ | |
| 599 if (foldmethodIsMarker(curwin)) | |
| 600 { | |
| 601 foldCreateMarkers(start, end); | |
| 602 return; | |
| 603 } | |
| 604 | |
| 605 checkupdate(curwin); | |
| 606 | |
| 607 /* Find the place to insert the new fold. */ | |
| 608 gap = &curwin->w_folds; | |
| 609 for (;;) | |
| 610 { | |
| 611 if (!foldFind(gap, start_rel, &fp)) | |
| 612 break; | |
| 613 if (fp->fd_top + fp->fd_len > end_rel) | |
| 614 { | |
| 615 /* New fold is completely inside this fold: Go one level deeper. */ | |
| 616 gap = &fp->fd_nested; | |
| 617 start_rel -= fp->fd_top; | |
| 618 end_rel -= fp->fd_top; | |
| 619 if (use_level || fp->fd_flags == FD_LEVEL) | |
| 620 { | |
| 621 use_level = TRUE; | |
| 622 if (level >= curwin->w_p_fdl) | |
| 623 closed = TRUE; | |
| 624 } | |
| 625 else if (fp->fd_flags == FD_CLOSED) | |
| 626 closed = TRUE; | |
| 627 ++level; | |
| 628 } | |
| 629 else | |
| 630 { | |
| 631 /* This fold and new fold overlap: Insert here and move some folds | |
| 632 * inside the new fold. */ | |
| 633 break; | |
| 634 } | |
| 635 } | |
| 636 | |
| 637 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 638 if (ga_grow(gap, 1) == OK) | |
| 639 { | |
| 640 fp = (fold_T *)gap->ga_data + i; | |
| 641 ga_init2(&fold_ga, (int)sizeof(fold_T), 10); | |
| 642 | |
| 643 /* Count number of folds that will be contained in the new fold. */ | |
| 644 for (cont = 0; i + cont < gap->ga_len; ++cont) | |
| 645 if (fp[cont].fd_top > end_rel) | |
| 646 break; | |
| 647 if (cont > 0 && ga_grow(&fold_ga, cont) == OK) | |
| 648 { | |
| 649 /* If the first fold starts before the new fold, let the new fold | |
| 650 * start there. Otherwise the existing fold would change. */ | |
| 651 if (start_rel > fp->fd_top) | |
| 652 start_rel = fp->fd_top; | |
| 653 | |
| 654 /* When last contained fold isn't completely contained, adjust end | |
| 655 * of new fold. */ | |
| 656 if (end_rel < fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1) | |
| 657 end_rel = fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1; | |
| 658 /* Move contained folds to inside new fold. */ | |
| 659 mch_memmove(fold_ga.ga_data, fp, sizeof(fold_T) * cont); | |
| 660 fold_ga.ga_len += cont; | |
| 661 i += cont; | |
| 662 | |
| 663 /* Adjust line numbers in contained folds to be relative to the | |
| 664 * new fold. */ | |
| 665 for (j = 0; j < cont; ++j) | |
| 666 ((fold_T *)fold_ga.ga_data)[j].fd_top -= start_rel; | |
| 667 } | |
| 668 /* Move remaining entries to after the new fold. */ | |
| 669 if (i < gap->ga_len) | |
| 670 mch_memmove(fp + 1, (fold_T *)gap->ga_data + i, | |
| 671 sizeof(fold_T) * (gap->ga_len - i)); | |
| 672 gap->ga_len = gap->ga_len + 1 - cont; | |
| 673 | |
| 674 /* insert new fold */ | |
| 675 fp->fd_nested = fold_ga; | |
| 676 fp->fd_top = start_rel; | |
| 677 fp->fd_len = end_rel - start_rel + 1; | |
| 678 | |
| 679 /* We want the new fold to be closed. If it would remain open because | |
| 680 * of using 'foldlevel', need to adjust fd_flags of containing folds. | |
| 681 */ | |
| 682 if (use_level && !closed && level < curwin->w_p_fdl) | |
| 683 closeFold(start, 1L); | |
| 684 if (!use_level) | |
| 685 curwin->w_fold_manual = TRUE; | |
| 686 fp->fd_flags = FD_CLOSED; | |
| 687 fp->fd_small = MAYBE; | |
| 688 | |
| 689 /* redraw */ | |
| 690 changed_window_setting(); | |
| 691 } | |
| 692 } | |
| 693 | |
| 694 /* deleteFold() {{{2 */ | |
| 695 /* | |
| 696 * Delete a fold at line "start" in the current window. | |
| 697 * When "end" is not 0, delete all folds from "start" to "end". | |
| 698 * When "recursive" is TRUE delete recursively. | |
| 699 */ | |
| 700 void | |
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701 deleteFold( |
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702 linenr_T start, |
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703 linenr_T end, |
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704 int recursive, |
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705 int had_visual) /* TRUE when Visual selection used */ |
| 7 | 706 { |
| 707 garray_T *gap; | |
| 708 fold_T *fp; | |
| 709 garray_T *found_ga; | |
| 710 fold_T *found_fp = NULL; | |
| 711 linenr_T found_off = 0; | |
| 1780 | 712 int use_level; |
| 7 | 713 int maybe_small = FALSE; |
| 714 int level = 0; | |
| 715 linenr_T lnum = start; | |
| 716 linenr_T lnum_off; | |
| 717 int did_one = FALSE; | |
| 718 linenr_T first_lnum = MAXLNUM; | |
| 719 linenr_T last_lnum = 0; | |
| 720 | |
| 721 checkupdate(curwin); | |
| 722 | |
| 723 while (lnum <= end) | |
| 724 { | |
| 725 /* Find the deepest fold for "start". */ | |
| 726 gap = &curwin->w_folds; | |
| 727 found_ga = NULL; | |
| 728 lnum_off = 0; | |
| 1780 | 729 use_level = FALSE; |
| 7 | 730 for (;;) |
| 731 { | |
| 732 if (!foldFind(gap, lnum - lnum_off, &fp)) | |
| 733 break; | |
| 734 /* lnum is inside this fold, remember info */ | |
| 735 found_ga = gap; | |
| 736 found_fp = fp; | |
| 737 found_off = lnum_off; | |
| 738 | |
| 739 /* if "lnum" is folded, don't check nesting */ | |
| 740 if (check_closed(curwin, fp, &use_level, level, | |
| 741 &maybe_small, lnum_off)) | |
| 742 break; | |
| 743 | |
| 744 /* check nested folds */ | |
| 745 gap = &fp->fd_nested; | |
| 746 lnum_off += fp->fd_top; | |
| 747 ++level; | |
| 748 } | |
| 749 if (found_ga == NULL) | |
| 750 { | |
| 751 ++lnum; | |
| 752 } | |
| 753 else | |
| 754 { | |
| 755 lnum = found_fp->fd_top + found_fp->fd_len + found_off; | |
| 756 | |
| 757 if (foldmethodIsManual(curwin)) | |
| 758 deleteFoldEntry(found_ga, | |
| 759 (int)(found_fp - (fold_T *)found_ga->ga_data), recursive); | |
| 760 else | |
| 761 { | |
| 1780 | 762 if (first_lnum > found_fp->fd_top + found_off) |
| 763 first_lnum = found_fp->fd_top + found_off; | |
| 764 if (last_lnum < lnum) | |
| 7 | 765 last_lnum = lnum; |
| 1780 | 766 if (!did_one) |
| 767 parseMarker(curwin); | |
| 7 | 768 deleteFoldMarkers(found_fp, recursive, found_off); |
| 769 } | |
| 1780 | 770 did_one = TRUE; |
| 7 | 771 |
| 772 /* redraw window */ | |
| 773 changed_window_setting(); | |
| 774 } | |
| 775 } | |
| 776 if (!did_one) | |
| 777 { | |
|
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diff
changeset
|
778 emsg(_(e_nofold)); |
| 7 | 779 /* Force a redraw to remove the Visual highlighting. */ |
| 780 if (had_visual) | |
| 781 redraw_curbuf_later(INVERTED); | |
| 782 } | |
| 1780 | 783 else |
| 784 /* Deleting markers may make cursor column invalid. */ | |
| 785 check_cursor_col(); | |
| 786 | |
| 7 | 787 if (last_lnum > 0) |
| 788 changed_lines(first_lnum, (colnr_T)0, last_lnum, 0L); | |
| 789 } | |
| 790 | |
| 791 /* clearFolding() {{{2 */ | |
| 792 /* | |
| 793 * Remove all folding for window "win". | |
| 794 */ | |
| 795 void | |
|
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parents:
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diff
changeset
|
796 clearFolding(win_T *win) |
| 7 | 797 { |
| 798 deleteFoldRecurse(&win->w_folds); | |
| 799 win->w_foldinvalid = FALSE; | |
| 800 } | |
| 801 | |
| 802 /* foldUpdate() {{{2 */ | |
| 803 /* | |
| 804 * Update folds for changes in the buffer of a window. | |
| 805 * Note that inserted/deleted lines must have already been taken care of by | |
| 806 * calling foldMarkAdjust(). | |
| 807 * The changes in lines from top to bot (inclusive). | |
| 808 */ | |
| 809 void | |
|
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diff
changeset
|
810 foldUpdate(win_T *wp, linenr_T top, linenr_T bot) |
| 7 | 811 { |
| 812 fold_T *fp; | |
| 813 | |
|
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|
814 if (disable_fold_update > 0) |
|
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|
815 return; |
|
d7ba3f9b9ba6
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diff
changeset
|
816 |
| 7 | 817 /* Mark all folds from top to bot as maybe-small. */ |
| 6755 | 818 (void)foldFind(&wp->w_folds, top, &fp); |
| 819 while (fp < (fold_T *)wp->w_folds.ga_data + wp->w_folds.ga_len | |
| 7 | 820 && fp->fd_top < bot) |
| 821 { | |
| 822 fp->fd_small = MAYBE; | |
| 823 ++fp; | |
| 824 } | |
| 825 | |
| 826 if (foldmethodIsIndent(wp) | |
| 827 || foldmethodIsExpr(wp) | |
| 828 || foldmethodIsMarker(wp) | |
| 829 #ifdef FEAT_DIFF | |
| 830 || foldmethodIsDiff(wp) | |
| 831 #endif | |
| 832 || foldmethodIsSyntax(wp)) | |
| 1424 | 833 { |
| 834 int save_got_int = got_int; | |
| 835 | |
| 836 /* reset got_int here, otherwise it won't work */ | |
| 837 got_int = FALSE; | |
| 7 | 838 foldUpdateIEMS(wp, top, bot); |
| 1424 | 839 got_int |= save_got_int; |
| 840 } | |
| 7 | 841 } |
| 842 | |
| 843 /* foldUpdateAll() {{{2 */ | |
| 844 /* | |
| 845 * Update all lines in a window for folding. | |
| 846 * Used when a fold setting changes or after reloading the buffer. | |
| 847 * The actual updating is postponed until fold info is used, to avoid doing | |
| 848 * every time a setting is changed or a syntax item is added. | |
| 849 */ | |
| 850 void | |
|
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|
851 foldUpdateAll(win_T *win) |
| 7 | 852 { |
| 853 win->w_foldinvalid = TRUE; | |
| 854 redraw_win_later(win, NOT_VALID); | |
| 855 } | |
| 856 | |
| 857 /* foldMoveTo() {{{2 */ | |
| 858 /* | |
| 859 * If "updown" is FALSE: Move to the start or end of the fold. | |
| 860 * If "updown" is TRUE: move to fold at the same level. | |
| 861 * If not moved return FAIL. | |
| 862 */ | |
| 863 int | |
|
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|
864 foldMoveTo( |
|
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|
865 int updown, |
|
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|
866 int dir, /* FORWARD or BACKWARD */ |
|
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|
867 long count) |
| 7 | 868 { |
| 869 long n; | |
| 870 int retval = FAIL; | |
| 871 linenr_T lnum_off; | |
| 872 linenr_T lnum_found; | |
| 873 linenr_T lnum; | |
| 874 int use_level; | |
| 875 int maybe_small; | |
| 876 garray_T *gap; | |
| 877 fold_T *fp; | |
| 878 int level; | |
| 879 int last; | |
| 880 | |
| 36 | 881 checkupdate(curwin); |
| 882 | |
| 7 | 883 /* Repeat "count" times. */ |
| 884 for (n = 0; n < count; ++n) | |
| 885 { | |
| 886 /* Find nested folds. Stop when a fold is closed. The deepest fold | |
| 887 * that moves the cursor is used. */ | |
| 888 lnum_off = 0; | |
| 889 gap = &curwin->w_folds; | |
| 890 use_level = FALSE; | |
| 891 maybe_small = FALSE; | |
| 892 lnum_found = curwin->w_cursor.lnum; | |
| 893 level = 0; | |
| 894 last = FALSE; | |
| 895 for (;;) | |
| 896 { | |
| 897 if (!foldFind(gap, curwin->w_cursor.lnum - lnum_off, &fp)) | |
| 898 { | |
| 899 if (!updown) | |
| 900 break; | |
| 901 | |
| 902 /* When moving up, consider a fold above the cursor; when | |
| 903 * moving down consider a fold below the cursor. */ | |
| 904 if (dir == FORWARD) | |
| 905 { | |
| 906 if (fp - (fold_T *)gap->ga_data >= gap->ga_len) | |
| 907 break; | |
| 908 --fp; | |
| 909 } | |
| 910 else | |
| 911 { | |
| 912 if (fp == (fold_T *)gap->ga_data) | |
| 913 break; | |
| 914 } | |
| 915 /* don't look for contained folds, they will always move | |
| 916 * the cursor too far. */ | |
| 917 last = TRUE; | |
| 918 } | |
| 919 | |
| 920 if (!last) | |
| 921 { | |
| 922 /* Check if this fold is closed. */ | |
| 923 if (check_closed(curwin, fp, &use_level, level, | |
| 924 &maybe_small, lnum_off)) | |
| 925 last = TRUE; | |
| 926 | |
| 927 /* "[z" and "]z" stop at closed fold */ | |
| 928 if (last && !updown) | |
| 929 break; | |
| 930 } | |
| 931 | |
| 932 if (updown) | |
| 933 { | |
| 934 if (dir == FORWARD) | |
| 935 { | |
| 936 /* to start of next fold if there is one */ | |
| 937 if (fp + 1 - (fold_T *)gap->ga_data < gap->ga_len) | |
| 938 { | |
| 939 lnum = fp[1].fd_top + lnum_off; | |
| 940 if (lnum > curwin->w_cursor.lnum) | |
| 941 lnum_found = lnum; | |
| 942 } | |
| 943 } | |
| 944 else | |
| 945 { | |
| 946 /* to end of previous fold if there is one */ | |
| 947 if (fp > (fold_T *)gap->ga_data) | |
| 948 { | |
| 949 lnum = fp[-1].fd_top + lnum_off + fp[-1].fd_len - 1; | |
| 950 if (lnum < curwin->w_cursor.lnum) | |
| 951 lnum_found = lnum; | |
| 952 } | |
| 953 } | |
| 954 } | |
| 955 else | |
| 956 { | |
| 957 /* Open fold found, set cursor to its start/end and then check | |
| 958 * nested folds. */ | |
| 959 if (dir == FORWARD) | |
| 960 { | |
| 961 lnum = fp->fd_top + lnum_off + fp->fd_len - 1; | |
| 962 if (lnum > curwin->w_cursor.lnum) | |
| 963 lnum_found = lnum; | |
| 964 } | |
| 965 else | |
| 966 { | |
| 967 lnum = fp->fd_top + lnum_off; | |
| 968 if (lnum < curwin->w_cursor.lnum) | |
| 969 lnum_found = lnum; | |
| 970 } | |
| 971 } | |
| 972 | |
| 973 if (last) | |
| 974 break; | |
| 975 | |
| 976 /* Check nested folds (if any). */ | |
| 977 gap = &fp->fd_nested; | |
| 978 lnum_off += fp->fd_top; | |
| 979 ++level; | |
| 980 } | |
| 981 if (lnum_found != curwin->w_cursor.lnum) | |
| 982 { | |
| 983 if (retval == FAIL) | |
| 984 setpcmark(); | |
| 985 curwin->w_cursor.lnum = lnum_found; | |
| 986 curwin->w_cursor.col = 0; | |
| 987 retval = OK; | |
| 988 } | |
| 989 else | |
| 990 break; | |
| 991 } | |
| 992 | |
| 993 return retval; | |
| 994 } | |
| 995 | |
| 996 /* foldInitWin() {{{2 */ | |
| 997 /* | |
| 998 * Init the fold info in a new window. | |
| 999 */ | |
| 1000 void | |
|
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1001 foldInitWin(win_T *new_win) |
| 7 | 1002 { |
| 3263 | 1003 ga_init2(&new_win->w_folds, (int)sizeof(fold_T), 10); |
| 7 | 1004 } |
| 1005 | |
| 1006 /* find_wl_entry() {{{2 */ | |
| 1007 /* | |
| 1008 * Find an entry in the win->w_lines[] array for buffer line "lnum". | |
| 1009 * Only valid entries are considered (for entries where wl_valid is FALSE the | |
| 1010 * line number can be wrong). | |
| 1011 * Returns index of entry or -1 if not found. | |
| 1012 */ | |
| 1013 int | |
|
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1014 find_wl_entry(win_T *win, linenr_T lnum) |
| 7 | 1015 { |
| 1016 int i; | |
| 1017 | |
|
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1018 for (i = 0; i < win->w_lines_valid; ++i) |
|
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1019 if (win->w_lines[i].wl_valid) |
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1020 { |
|
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1021 if (lnum < win->w_lines[i].wl_lnum) |
|
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1022 return -1; |
|
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1023 if (lnum <= win->w_lines[i].wl_lastlnum) |
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1024 return i; |
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|
1025 } |
| 7 | 1026 return -1; |
| 1027 } | |
| 1028 | |
| 1029 /* foldAdjustVisual() {{{2 */ | |
| 1030 /* | |
| 1031 * Adjust the Visual area to include any fold at the start or end completely. | |
| 1032 */ | |
| 1033 void | |
|
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|
1034 foldAdjustVisual(void) |
| 7 | 1035 { |
| 1036 pos_T *start, *end; | |
| 1037 char_u *ptr; | |
| 1038 | |
| 1039 if (!VIsual_active || !hasAnyFolding(curwin)) | |
| 1040 return; | |
| 1041 | |
|
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changeset
|
1042 if (LTOREQ_POS(VIsual, curwin->w_cursor)) |
| 7 | 1043 { |
| 1044 start = &VIsual; | |
| 1045 end = &curwin->w_cursor; | |
| 1046 } | |
| 1047 else | |
| 1048 { | |
| 1049 start = &curwin->w_cursor; | |
| 1050 end = &VIsual; | |
| 1051 } | |
| 1052 if (hasFolding(start->lnum, &start->lnum, NULL)) | |
| 1053 start->col = 0; | |
| 1054 if (hasFolding(end->lnum, NULL, &end->lnum)) | |
| 1055 { | |
| 1056 ptr = ml_get(end->lnum); | |
| 1057 end->col = (colnr_T)STRLEN(ptr); | |
| 1058 if (end->col > 0 && *p_sel == 'o') | |
| 1059 --end->col; | |
| 1060 /* prevent cursor from moving on the trail byte */ | |
| 1061 if (has_mbyte) | |
| 1062 mb_adjust_cursor(); | |
| 1063 } | |
| 1064 } | |
| 1065 | |
| 1066 /* cursor_foldstart() {{{2 */ | |
| 1067 /* | |
| 1068 * Move the cursor to the first line of a closed fold. | |
| 1069 */ | |
| 1070 void | |
|
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|
1071 foldAdjustCursor(void) |
| 7 | 1072 { |
| 1073 (void)hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL); | |
| 1074 } | |
| 1075 | |
| 1076 /* Internal functions for "fold_T" {{{1 */ | |
| 1077 /* cloneFoldGrowArray() {{{2 */ | |
| 1078 /* | |
| 1079 * Will "clone" (i.e deep copy) a garray_T of folds. | |
| 1080 * | |
| 1081 * Return FAIL if the operation cannot be completed, otherwise OK. | |
| 1082 */ | |
| 1083 void | |
|
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changeset
|
1084 cloneFoldGrowArray(garray_T *from, garray_T *to) |
| 7 | 1085 { |
| 1086 int i; | |
| 1087 fold_T *from_p; | |
| 1088 fold_T *to_p; | |
| 1089 | |
| 1090 ga_init2(to, from->ga_itemsize, from->ga_growsize); | |
| 1091 if (from->ga_len == 0 || ga_grow(to, from->ga_len) == FAIL) | |
| 1092 return; | |
| 1093 | |
| 1094 from_p = (fold_T *)from->ga_data; | |
| 1095 to_p = (fold_T *)to->ga_data; | |
| 1096 | |
| 1097 for (i = 0; i < from->ga_len; i++) | |
| 1098 { | |
| 1099 to_p->fd_top = from_p->fd_top; | |
| 1100 to_p->fd_len = from_p->fd_len; | |
| 1101 to_p->fd_flags = from_p->fd_flags; | |
| 1102 to_p->fd_small = from_p->fd_small; | |
| 1103 cloneFoldGrowArray(&from_p->fd_nested, &to_p->fd_nested); | |
| 1104 ++to->ga_len; | |
| 1105 ++from_p; | |
| 1106 ++to_p; | |
| 1107 } | |
| 1108 } | |
| 1109 | |
| 1110 /* foldFind() {{{2 */ | |
| 1111 /* | |
| 1112 * Search for line "lnum" in folds of growarray "gap". | |
| 1113 * Set *fpp to the fold struct for the fold that contains "lnum" or | |
| 1114 * the first fold below it (careful: it can be beyond the end of the array!). | |
| 1115 * Returns FALSE when there is no fold that contains "lnum". | |
| 1116 */ | |
| 1117 static int | |
|
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changeset
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1118 foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp) |
| 7 | 1119 { |
| 1120 linenr_T low, high; | |
| 1121 fold_T *fp; | |
| 1122 int i; | |
| 1123 | |
| 1124 /* | |
| 1125 * Perform a binary search. | |
| 1126 * "low" is lowest index of possible match. | |
| 1127 * "high" is highest index of possible match. | |
| 1128 */ | |
| 1129 fp = (fold_T *)gap->ga_data; | |
| 1130 low = 0; | |
| 1131 high = gap->ga_len - 1; | |
| 1132 while (low <= high) | |
| 1133 { | |
| 1134 i = (low + high) / 2; | |
| 1135 if (fp[i].fd_top > lnum) | |
| 1136 /* fold below lnum, adjust high */ | |
| 1137 high = i - 1; | |
| 1138 else if (fp[i].fd_top + fp[i].fd_len <= lnum) | |
| 1139 /* fold above lnum, adjust low */ | |
| 1140 low = i + 1; | |
| 1141 else | |
| 1142 { | |
| 1143 /* lnum is inside this fold */ | |
| 1144 *fpp = fp + i; | |
| 1145 return TRUE; | |
| 1146 } | |
| 1147 } | |
| 1148 *fpp = fp + low; | |
| 1149 return FALSE; | |
| 1150 } | |
| 1151 | |
| 1152 /* foldLevelWin() {{{2 */ | |
| 1153 /* | |
| 1154 * Return fold level at line number "lnum" in window "wp". | |
| 1155 */ | |
| 1156 static int | |
|
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1157 foldLevelWin(win_T *wp, linenr_T lnum) |
| 7 | 1158 { |
| 1159 fold_T *fp; | |
| 1160 linenr_T lnum_rel = lnum; | |
| 1161 int level = 0; | |
| 1162 garray_T *gap; | |
| 1163 | |
| 1164 /* Recursively search for a fold that contains "lnum". */ | |
| 1165 gap = &wp->w_folds; | |
| 1166 for (;;) | |
| 1167 { | |
| 1168 if (!foldFind(gap, lnum_rel, &fp)) | |
| 1169 break; | |
| 1170 /* Check nested folds. Line number is relative to containing fold. */ | |
| 1171 gap = &fp->fd_nested; | |
| 1172 lnum_rel -= fp->fd_top; | |
| 1173 ++level; | |
| 1174 } | |
| 1175 | |
| 1176 return level; | |
| 1177 } | |
| 1178 | |
| 1179 /* checkupdate() {{{2 */ | |
| 1180 /* | |
| 1181 * Check if the folds in window "wp" are invalid and update them if needed. | |
| 1182 */ | |
| 1183 static void | |
|
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1184 checkupdate(win_T *wp) |
| 7 | 1185 { |
| 1186 if (wp->w_foldinvalid) | |
| 1187 { | |
| 1188 foldUpdate(wp, (linenr_T)1, (linenr_T)MAXLNUM); /* will update all */ | |
| 1189 wp->w_foldinvalid = FALSE; | |
| 1190 } | |
| 1191 } | |
| 1192 | |
| 1193 /* setFoldRepeat() {{{2 */ | |
| 1194 /* | |
| 1195 * Open or close fold for current window at line "lnum". | |
| 1196 * Repeat "count" times. | |
| 1197 */ | |
| 1198 static void | |
|
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1199 setFoldRepeat(linenr_T lnum, long count, int do_open) |
| 7 | 1200 { |
| 1201 int done; | |
| 1202 long n; | |
| 1203 | |
| 1204 for (n = 0; n < count; ++n) | |
| 1205 { | |
| 1206 done = DONE_NOTHING; | |
| 1757 | 1207 (void)setManualFold(lnum, do_open, FALSE, &done); |
| 7 | 1208 if (!(done & DONE_ACTION)) |
| 1209 { | |
| 1210 /* Only give an error message when no fold could be opened. */ | |
| 1211 if (n == 0 && !(done & DONE_FOLD)) | |
|
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1212 emsg(_(e_nofold)); |
| 7 | 1213 break; |
| 1214 } | |
| 1215 } | |
| 1216 } | |
| 1217 | |
| 1218 /* setManualFold() {{{2 */ | |
| 1219 /* | |
| 1220 * Open or close the fold in the current window which contains "lnum". | |
| 1221 * Also does this for other windows in diff mode when needed. | |
| 1222 */ | |
| 1223 static linenr_T | |
|
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1224 setManualFold( |
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1225 linenr_T lnum, |
|
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1226 int opening, /* TRUE when opening, FALSE when closing */ |
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1227 int recurse, /* TRUE when closing/opening recursive */ |
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|
1228 int *donep) |
| 7 | 1229 { |
| 1230 #ifdef FEAT_DIFF | |
| 1231 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
| 1232 { | |
| 1233 win_T *wp; | |
| 1234 linenr_T dlnum; | |
| 1235 | |
| 1236 /* | |
| 1237 * Do the same operation in other windows in diff mode. Calculate the | |
| 1238 * line number from the diffs. | |
| 1239 */ | |
| 1240 FOR_ALL_WINDOWS(wp) | |
| 1241 { | |
| 1242 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
| 1243 { | |
| 1244 dlnum = diff_lnum_win(curwin->w_cursor.lnum, wp); | |
| 1245 if (dlnum != 0) | |
| 1246 (void)setManualFoldWin(wp, dlnum, opening, recurse, NULL); | |
| 1247 } | |
| 1248 } | |
| 1249 } | |
| 1250 #endif | |
| 1251 | |
| 1252 return setManualFoldWin(curwin, lnum, opening, recurse, donep); | |
| 1253 } | |
| 1254 | |
| 1255 /* setManualFoldWin() {{{2 */ | |
| 1256 /* | |
| 1257 * Open or close the fold in window "wp" which contains "lnum". | |
| 1258 * "donep", when not NULL, points to flag that is set to DONE_FOLD when some | |
| 1259 * fold was found and to DONE_ACTION when some fold was opened or closed. | |
| 1260 * When "donep" is NULL give an error message when no fold was found for | |
| 1261 * "lnum", but only if "wp" is "curwin". | |
| 1262 * Return the line number of the next line that could be closed. | |
| 1263 * It's only valid when "opening" is TRUE! | |
| 1264 */ | |
| 1265 static linenr_T | |
|
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1266 setManualFoldWin( |
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1267 win_T *wp, |
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1268 linenr_T lnum, |
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1269 int opening, /* TRUE when opening, FALSE when closing */ |
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1270 int recurse, /* TRUE when closing/opening recursive */ |
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1271 int *donep) |
| 7 | 1272 { |
| 1273 fold_T *fp; | |
| 1274 fold_T *fp2; | |
| 1275 fold_T *found = NULL; | |
| 1276 int j; | |
| 1277 int level = 0; | |
| 1278 int use_level = FALSE; | |
| 1279 int found_fold = FALSE; | |
| 1280 garray_T *gap; | |
| 1281 linenr_T next = MAXLNUM; | |
| 1282 linenr_T off = 0; | |
| 1283 int done = 0; | |
| 1284 | |
| 1285 checkupdate(wp); | |
| 1286 | |
| 1287 /* | |
| 1288 * Find the fold, open or close it. | |
| 1289 */ | |
| 1290 gap = &wp->w_folds; | |
| 1291 for (;;) | |
| 1292 { | |
| 1293 if (!foldFind(gap, lnum, &fp)) | |
| 1294 { | |
| 1295 /* If there is a following fold, continue there next time. */ | |
| 1296 if (fp < (fold_T *)gap->ga_data + gap->ga_len) | |
| 1297 next = fp->fd_top + off; | |
| 1298 break; | |
| 1299 } | |
| 1300 | |
| 1301 /* lnum is inside this fold */ | |
| 1302 found_fold = TRUE; | |
| 1303 | |
| 1304 /* If there is a following fold, continue there next time. */ | |
| 1305 if (fp + 1 < (fold_T *)gap->ga_data + gap->ga_len) | |
| 1306 next = fp[1].fd_top + off; | |
| 1307 | |
| 1308 /* Change from level-dependent folding to manual. */ | |
| 1309 if (use_level || fp->fd_flags == FD_LEVEL) | |
| 1310 { | |
| 1311 use_level = TRUE; | |
| 1312 if (level >= wp->w_p_fdl) | |
| 1313 fp->fd_flags = FD_CLOSED; | |
| 1314 else | |
| 1315 fp->fd_flags = FD_OPEN; | |
| 1316 fp2 = (fold_T *)fp->fd_nested.ga_data; | |
| 1317 for (j = 0; j < fp->fd_nested.ga_len; ++j) | |
| 1318 fp2[j].fd_flags = FD_LEVEL; | |
| 1319 } | |
| 1320 | |
| 1321 /* Simple case: Close recursively means closing the fold. */ | |
| 1322 if (!opening && recurse) | |
| 1323 { | |
| 1324 if (fp->fd_flags != FD_CLOSED) | |
| 1325 { | |
| 1326 done |= DONE_ACTION; | |
| 1327 fp->fd_flags = FD_CLOSED; | |
| 1328 } | |
| 1329 } | |
| 1330 else if (fp->fd_flags == FD_CLOSED) | |
| 1331 { | |
| 1332 /* When opening, open topmost closed fold. */ | |
| 1333 if (opening) | |
| 1334 { | |
| 1335 fp->fd_flags = FD_OPEN; | |
| 1336 done |= DONE_ACTION; | |
| 1337 if (recurse) | |
| 1338 foldOpenNested(fp); | |
| 1339 } | |
| 1340 break; | |
| 1341 } | |
| 1342 | |
| 1343 /* fold is open, check nested folds */ | |
| 1344 found = fp; | |
| 1345 gap = &fp->fd_nested; | |
| 1346 lnum -= fp->fd_top; | |
| 1347 off += fp->fd_top; | |
| 1348 ++level; | |
| 1349 } | |
| 1350 if (found_fold) | |
| 1351 { | |
| 1352 /* When closing and not recurse, close deepest open fold. */ | |
| 1353 if (!opening && found != NULL) | |
| 1354 { | |
| 1355 found->fd_flags = FD_CLOSED; | |
| 1356 done |= DONE_ACTION; | |
| 1357 } | |
| 1358 wp->w_fold_manual = TRUE; | |
| 1359 if (done & DONE_ACTION) | |
| 1360 changed_window_setting_win(wp); | |
| 1361 done |= DONE_FOLD; | |
| 1362 } | |
| 1363 else if (donep == NULL && wp == curwin) | |
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1364 emsg(_(e_nofold)); |
| 7 | 1365 |
| 1366 if (donep != NULL) | |
| 1367 *donep |= done; | |
| 1368 | |
| 1369 return next; | |
| 1370 } | |
| 1371 | |
| 1372 /* foldOpenNested() {{{2 */ | |
| 1373 /* | |
| 1374 * Open all nested folds in fold "fpr" recursively. | |
| 1375 */ | |
| 1376 static void | |
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1377 foldOpenNested(fold_T *fpr) |
| 7 | 1378 { |
| 1379 int i; | |
| 1380 fold_T *fp; | |
| 1381 | |
| 1382 fp = (fold_T *)fpr->fd_nested.ga_data; | |
| 1383 for (i = 0; i < fpr->fd_nested.ga_len; ++i) | |
| 1384 { | |
| 1385 foldOpenNested(&fp[i]); | |
| 1386 fp[i].fd_flags = FD_OPEN; | |
| 1387 } | |
| 1388 } | |
| 1389 | |
| 1390 /* deleteFoldEntry() {{{2 */ | |
| 1391 /* | |
| 1392 * Delete fold "idx" from growarray "gap". | |
| 1393 * When "recursive" is TRUE also delete all the folds contained in it. | |
| 1394 * When "recursive" is FALSE contained folds are moved one level up. | |
| 1395 */ | |
| 1396 static void | |
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1397 deleteFoldEntry(garray_T *gap, int idx, int recursive) |
| 7 | 1398 { |
| 1399 fold_T *fp; | |
| 1400 int i; | |
| 1401 long moved; | |
| 1402 fold_T *nfp; | |
| 1403 | |
| 1404 fp = (fold_T *)gap->ga_data + idx; | |
| 1405 if (recursive || fp->fd_nested.ga_len == 0) | |
| 1406 { | |
| 1407 /* recursively delete the contained folds */ | |
| 1408 deleteFoldRecurse(&fp->fd_nested); | |
| 1409 --gap->ga_len; | |
| 1410 if (idx < gap->ga_len) | |
| 1411 mch_memmove(fp, fp + 1, sizeof(fold_T) * (gap->ga_len - idx)); | |
| 1412 } | |
| 1413 else | |
| 1414 { | |
| 3028 | 1415 /* Move nested folds one level up, to overwrite the fold that is |
| 7 | 1416 * deleted. */ |
| 1417 moved = fp->fd_nested.ga_len; | |
| 1418 if (ga_grow(gap, (int)(moved - 1)) == OK) | |
| 1419 { | |
| 3028 | 1420 /* Get "fp" again, the array may have been reallocated. */ |
| 1421 fp = (fold_T *)gap->ga_data + idx; | |
| 1422 | |
| 7 | 1423 /* adjust fd_top and fd_flags for the moved folds */ |
| 1424 nfp = (fold_T *)fp->fd_nested.ga_data; | |
| 1425 for (i = 0; i < moved; ++i) | |
| 1426 { | |
| 1427 nfp[i].fd_top += fp->fd_top; | |
| 1428 if (fp->fd_flags == FD_LEVEL) | |
| 1429 nfp[i].fd_flags = FD_LEVEL; | |
| 1430 if (fp->fd_small == MAYBE) | |
| 1431 nfp[i].fd_small = MAYBE; | |
| 1432 } | |
| 1433 | |
| 1434 /* move the existing folds down to make room */ | |
| 3028 | 1435 if (idx + 1 < gap->ga_len) |
| 7 | 1436 mch_memmove(fp + moved, fp + 1, |
| 3028 | 1437 sizeof(fold_T) * (gap->ga_len - (idx + 1))); |
| 7 | 1438 /* move the contained folds one level up */ |
| 1439 mch_memmove(fp, nfp, (size_t)(sizeof(fold_T) * moved)); | |
| 1440 vim_free(nfp); | |
| 1441 gap->ga_len += moved - 1; | |
| 1442 } | |
| 1443 } | |
| 1444 } | |
| 1445 | |
| 1446 /* deleteFoldRecurse() {{{2 */ | |
| 1447 /* | |
| 1448 * Delete nested folds in a fold. | |
| 1449 */ | |
| 1450 void | |
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1451 deleteFoldRecurse(garray_T *gap) |
| 7 | 1452 { |
| 1453 int i; | |
| 1454 | |
| 1455 for (i = 0; i < gap->ga_len; ++i) | |
| 1456 deleteFoldRecurse(&(((fold_T *)(gap->ga_data))[i].fd_nested)); | |
| 1457 ga_clear(gap); | |
| 1458 } | |
| 1459 | |
| 1460 /* foldMarkAdjust() {{{2 */ | |
| 1461 /* | |
| 1462 * Update line numbers of folds for inserted/deleted lines. | |
| 1463 */ | |
| 1464 void | |
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1465 foldMarkAdjust( |
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1466 win_T *wp, |
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1467 linenr_T line1, |
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1468 linenr_T line2, |
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1469 long amount, |
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1470 long amount_after) |
| 7 | 1471 { |
| 1472 /* If deleting marks from line1 to line2, but not deleting all those | |
| 1473 * lines, set line2 so that only deleted lines have their folds removed. */ | |
| 1474 if (amount == MAXLNUM && line2 >= line1 && line2 - line1 >= -amount_after) | |
| 1475 line2 = line1 - amount_after - 1; | |
| 1476 /* If appending a line in Insert mode, it should be included in the fold | |
| 1477 * just above the line. */ | |
| 1478 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) | |
| 1479 --line1; | |
| 1480 foldMarkAdjustRecurse(&wp->w_folds, line1, line2, amount, amount_after); | |
| 1481 } | |
| 1482 | |
| 1483 /* foldMarkAdjustRecurse() {{{2 */ | |
| 1484 static void | |
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1485 foldMarkAdjustRecurse( |
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1486 garray_T *gap, |
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1487 linenr_T line1, |
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1488 linenr_T line2, |
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1489 long amount, |
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1490 long amount_after) |
| 7 | 1491 { |
| 1492 fold_T *fp; | |
| 1493 int i; | |
| 1494 linenr_T last; | |
| 1495 linenr_T top; | |
| 1496 | |
| 1497 /* In Insert mode an inserted line at the top of a fold is considered part | |
| 1498 * of the fold, otherwise it isn't. */ | |
| 1499 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) | |
| 1500 top = line1 + 1; | |
| 1501 else | |
| 1502 top = line1; | |
| 1503 | |
| 1504 /* Find the fold containing or just below "line1". */ | |
| 1505 (void)foldFind(gap, line1, &fp); | |
| 1506 | |
| 1507 /* | |
| 1508 * Adjust all folds below "line1" that are affected. | |
| 1509 */ | |
| 1510 for (i = (int)(fp - (fold_T *)gap->ga_data); i < gap->ga_len; ++i, ++fp) | |
| 1511 { | |
| 1512 /* | |
| 1513 * Check for these situations: | |
| 1514 * 1 2 3 | |
| 1515 * 1 2 3 | |
| 1516 * line1 2 3 4 5 | |
| 1517 * 2 3 4 5 | |
| 1518 * 2 3 4 5 | |
| 1519 * line2 2 3 4 5 | |
| 1520 * 3 5 6 | |
| 1521 * 3 5 6 | |
| 1522 */ | |
| 1523 | |
| 1524 last = fp->fd_top + fp->fd_len - 1; /* last line of fold */ | |
| 1525 | |
| 1526 /* 1. fold completely above line1: nothing to do */ | |
| 1527 if (last < line1) | |
| 1528 continue; | |
| 1529 | |
| 1530 /* 6. fold below line2: only adjust for amount_after */ | |
| 1531 if (fp->fd_top > line2) | |
| 1532 { | |
| 1533 if (amount_after == 0) | |
| 1534 break; | |
| 1535 fp->fd_top += amount_after; | |
| 1536 } | |
| 1537 else | |
| 1538 { | |
| 1539 if (fp->fd_top >= top && last <= line2) | |
| 1540 { | |
| 1541 /* 4. fold completely contained in range */ | |
| 1542 if (amount == MAXLNUM) | |
| 1543 { | |
| 1544 /* Deleting lines: delete the fold completely */ | |
| 1545 deleteFoldEntry(gap, i, TRUE); | |
| 1546 --i; /* adjust index for deletion */ | |
| 1547 --fp; | |
| 1548 } | |
| 1549 else | |
| 1550 fp->fd_top += amount; | |
| 1551 } | |
| 1552 else | |
| 1553 { | |
| 1554 if (fp->fd_top < top) | |
| 1555 { | |
| 1964 | 1556 /* 2 or 3: need to correct nested folds too */ |
| 1557 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, | |
| 1558 line2 - fp->fd_top, amount, amount_after); | |
| 7 | 1559 if (last <= line2) |
| 1560 { | |
| 1561 /* 2. fold contains line1, line2 is below fold */ | |
| 1562 if (amount == MAXLNUM) | |
| 1563 fp->fd_len = line1 - fp->fd_top; | |
| 1564 else | |
| 1565 fp->fd_len += amount; | |
| 1566 } | |
| 1567 else | |
| 1568 { | |
| 1569 /* 3. fold contains line1 and line2 */ | |
| 1570 fp->fd_len += amount_after; | |
| 1571 } | |
| 1572 } | |
| 1573 else | |
| 1574 { | |
| 1964 | 1575 /* 5. fold is below line1 and contains line2; need to |
| 1576 * correct nested folds too */ | |
| 7 | 1577 if (amount == MAXLNUM) |
| 1578 { | |
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1579 foldMarkAdjustRecurse(&fp->fd_nested, |
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1580 line1 - fp->fd_top, |
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1581 line2 - fp->fd_top, |
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1582 amount, |
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1583 amount_after + (fp->fd_top - top)); |
| 7 | 1584 fp->fd_len -= line2 - fp->fd_top + 1; |
| 1585 fp->fd_top = line1; | |
| 1586 } | |
| 1587 else | |
| 1588 { | |
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1589 foldMarkAdjustRecurse(&fp->fd_nested, |
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1590 line1 - fp->fd_top, |
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1591 line2 - fp->fd_top, |
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1592 amount, |
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1593 amount_after - amount); |
| 7 | 1594 fp->fd_len += amount_after - amount; |
| 1595 fp->fd_top += amount; | |
| 1596 } | |
| 1597 } | |
| 1598 } | |
| 1599 } | |
| 1600 } | |
| 1601 } | |
| 1602 | |
| 1603 /* getDeepestNesting() {{{2 */ | |
| 1604 /* | |
| 1605 * Get the lowest 'foldlevel' value that makes the deepest nested fold in the | |
| 1606 * current window open. | |
| 1607 */ | |
| 1608 int | |
|
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1609 getDeepestNesting(void) |
| 7 | 1610 { |
| 1611 checkupdate(curwin); | |
| 1612 return getDeepestNestingRecurse(&curwin->w_folds); | |
| 1613 } | |
| 1614 | |
| 1615 static int | |
|
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1616 getDeepestNestingRecurse(garray_T *gap) |
| 7 | 1617 { |
| 1618 int i; | |
| 1619 int level; | |
| 1620 int maxlevel = 0; | |
| 1621 fold_T *fp; | |
| 1622 | |
| 1623 fp = (fold_T *)gap->ga_data; | |
| 1624 for (i = 0; i < gap->ga_len; ++i) | |
| 1625 { | |
| 1626 level = getDeepestNestingRecurse(&fp[i].fd_nested) + 1; | |
| 1627 if (level > maxlevel) | |
| 1628 maxlevel = level; | |
| 1629 } | |
| 1630 | |
| 1631 return maxlevel; | |
| 1632 } | |
| 1633 | |
| 1634 /* check_closed() {{{2 */ | |
| 1635 /* | |
| 1636 * Check if a fold is closed and update the info needed to check nested folds. | |
| 1637 */ | |
| 1638 static int | |
|
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1639 check_closed( |
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1640 win_T *win, |
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1641 fold_T *fp, |
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1642 int *use_levelp, /* TRUE: outer fold had FD_LEVEL */ |
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1643 int level, /* folding depth */ |
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1644 int *maybe_smallp, /* TRUE: outer this had fd_small == MAYBE */ |
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1645 linenr_T lnum_off) /* line number offset for fp->fd_top */ |
| 7 | 1646 { |
| 1647 int closed = FALSE; | |
| 1648 | |
| 1649 /* Check if this fold is closed. If the flag is FD_LEVEL this | |
| 1650 * fold and all folds it contains depend on 'foldlevel'. */ | |
| 1651 if (*use_levelp || fp->fd_flags == FD_LEVEL) | |
| 1652 { | |
| 1653 *use_levelp = TRUE; | |
| 1654 if (level >= win->w_p_fdl) | |
| 1655 closed = TRUE; | |
| 1656 } | |
| 1657 else if (fp->fd_flags == FD_CLOSED) | |
| 1658 closed = TRUE; | |
| 1659 | |
| 1660 /* Small fold isn't closed anyway. */ | |
| 1661 if (fp->fd_small == MAYBE) | |
| 1662 *maybe_smallp = TRUE; | |
| 1663 if (closed) | |
| 1664 { | |
| 1665 if (*maybe_smallp) | |
| 1666 fp->fd_small = MAYBE; | |
| 1667 checkSmall(win, fp, lnum_off); | |
| 1668 if (fp->fd_small == TRUE) | |
| 1669 closed = FALSE; | |
| 1670 } | |
| 1671 return closed; | |
| 1672 } | |
| 1673 | |
| 1674 /* checkSmall() {{{2 */ | |
| 1675 /* | |
| 1676 * Update fd_small field of fold "fp". | |
| 1677 */ | |
| 1678 static void | |
|
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1679 checkSmall( |
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1680 win_T *wp, |
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1681 fold_T *fp, |
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1682 linenr_T lnum_off) /* offset for fp->fd_top */ |
| 7 | 1683 { |
| 1684 int count; | |
| 1685 int n; | |
| 1686 | |
| 1687 if (fp->fd_small == MAYBE) | |
| 1688 { | |
| 1689 /* Mark any nested folds to maybe-small */ | |
| 1690 setSmallMaybe(&fp->fd_nested); | |
| 1691 | |
| 1692 if (fp->fd_len > curwin->w_p_fml) | |
| 1693 fp->fd_small = FALSE; | |
| 1694 else | |
| 1695 { | |
| 1696 count = 0; | |
| 1697 for (n = 0; n < fp->fd_len; ++n) | |
| 1698 { | |
| 1699 count += plines_win_nofold(wp, fp->fd_top + lnum_off + n); | |
| 1700 if (count > curwin->w_p_fml) | |
| 1701 { | |
| 1702 fp->fd_small = FALSE; | |
| 1703 return; | |
| 1704 } | |
| 1705 } | |
| 1706 fp->fd_small = TRUE; | |
| 1707 } | |
| 1708 } | |
| 1709 } | |
| 1710 | |
| 1711 /* setSmallMaybe() {{{2 */ | |
| 1712 /* | |
| 1713 * Set small flags in "gap" to MAYBE. | |
| 1714 */ | |
| 1715 static void | |
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1716 setSmallMaybe(garray_T *gap) |
| 7 | 1717 { |
| 1718 int i; | |
| 1719 fold_T *fp; | |
| 1720 | |
| 1721 fp = (fold_T *)gap->ga_data; | |
| 1722 for (i = 0; i < gap->ga_len; ++i) | |
| 1723 fp[i].fd_small = MAYBE; | |
| 1724 } | |
| 1725 | |
| 1726 /* foldCreateMarkers() {{{2 */ | |
| 1727 /* | |
| 1728 * Create a fold from line "start" to line "end" (inclusive) in the current | |
| 1729 * window by adding markers. | |
| 1730 */ | |
| 1731 static void | |
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1732 foldCreateMarkers(linenr_T start, linenr_T end) |
| 7 | 1733 { |
| 1734 if (!curbuf->b_p_ma) | |
| 1735 { | |
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1736 emsg(_(e_modifiable)); |
| 7 | 1737 return; |
| 1738 } | |
| 1739 parseMarker(curwin); | |
| 1740 | |
| 1741 foldAddMarker(start, curwin->w_p_fmr, foldstartmarkerlen); | |
| 1742 foldAddMarker(end, foldendmarker, foldendmarkerlen); | |
| 1743 | |
| 1744 /* Update both changes here, to avoid all folds after the start are | |
| 1745 * changed when the start marker is inserted and the end isn't. */ | |
| 1746 changed_lines(start, (colnr_T)0, end, 0L); | |
| 1747 } | |
| 1748 | |
| 1749 /* foldAddMarker() {{{2 */ | |
| 1750 /* | |
| 1751 * Add "marker[markerlen]" in 'commentstring' to line "lnum". | |
| 1752 */ | |
| 1753 static void | |
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1754 foldAddMarker(linenr_T lnum, char_u *marker, int markerlen) |
| 7 | 1755 { |
| 1756 char_u *cms = curbuf->b_p_cms; | |
| 1757 char_u *line; | |
| 1758 int line_len; | |
| 1759 char_u *newline; | |
| 1760 char_u *p = (char_u *)strstr((char *)curbuf->b_p_cms, "%s"); | |
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1761 int line_is_comment = FALSE; |
| 7 | 1762 |
| 1763 /* Allocate a new line: old-line + 'cms'-start + marker + 'cms'-end */ | |
| 1764 line = ml_get(lnum); | |
| 1765 line_len = (int)STRLEN(line); | |
| 1766 | |
| 1767 if (u_save(lnum - 1, lnum + 1) == OK) | |
| 1768 { | |
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1769 #if defined(FEAT_COMMENTS) |
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1770 /* Check if the line ends with an unclosed comment */ |
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1771 (void)skip_comment(line, FALSE, FALSE, &line_is_comment); |
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1772 #endif |
| 7 | 1773 newline = alloc((unsigned)(line_len + markerlen + STRLEN(cms) + 1)); |
| 1774 if (newline == NULL) | |
| 1775 return; | |
| 1776 STRCPY(newline, line); | |
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1777 /* Append the marker to the end of the line */ |
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1778 if (p == NULL || line_is_comment) |
| 419 | 1779 vim_strncpy(newline + line_len, marker, markerlen); |
| 7 | 1780 else |
| 1781 { | |
| 1782 STRCPY(newline + line_len, cms); | |
| 1783 STRNCPY(newline + line_len + (p - cms), marker, markerlen); | |
| 1784 STRCPY(newline + line_len + (p - cms) + markerlen, p + 2); | |
| 1785 } | |
| 1786 | |
| 1787 ml_replace(lnum, newline, FALSE); | |
| 1788 } | |
| 1789 } | |
| 1790 | |
| 1791 /* deleteFoldMarkers() {{{2 */ | |
| 1792 /* | |
| 1793 * Delete the markers for a fold, causing it to be deleted. | |
| 1794 */ | |
| 1795 static void | |
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1796 deleteFoldMarkers( |
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1797 fold_T *fp, |
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1798 int recursive, |
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1799 linenr_T lnum_off) /* offset for fp->fd_top */ |
| 7 | 1800 { |
| 1801 int i; | |
| 1802 | |
| 1803 if (recursive) | |
| 1804 for (i = 0; i < fp->fd_nested.ga_len; ++i) | |
| 1805 deleteFoldMarkers((fold_T *)fp->fd_nested.ga_data + i, TRUE, | |
| 1806 lnum_off + fp->fd_top); | |
| 1807 foldDelMarker(fp->fd_top + lnum_off, curwin->w_p_fmr, foldstartmarkerlen); | |
| 1808 foldDelMarker(fp->fd_top + lnum_off + fp->fd_len - 1, | |
| 1809 foldendmarker, foldendmarkerlen); | |
| 1810 } | |
| 1811 | |
| 1812 /* foldDelMarker() {{{2 */ | |
| 1813 /* | |
| 1814 * Delete marker "marker[markerlen]" at the end of line "lnum". | |
| 1815 * Delete 'commentstring' if it matches. | |
| 1816 * If the marker is not found, there is no error message. Could a missing | |
| 1817 * close-marker. | |
| 1818 */ | |
| 1819 static void | |
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1820 foldDelMarker(linenr_T lnum, char_u *marker, int markerlen) |
| 7 | 1821 { |
| 1822 char_u *line; | |
| 1823 char_u *newline; | |
| 1824 char_u *p; | |
| 1825 int len; | |
| 1826 char_u *cms = curbuf->b_p_cms; | |
| 1827 char_u *cms2; | |
| 1828 | |
| 1829 line = ml_get(lnum); | |
| 1830 for (p = line; *p != NUL; ++p) | |
| 1831 if (STRNCMP(p, marker, markerlen) == 0) | |
| 1832 { | |
| 1833 /* Found the marker, include a digit if it's there. */ | |
| 1834 len = markerlen; | |
| 1835 if (VIM_ISDIGIT(p[len])) | |
| 1836 ++len; | |
| 1837 if (*cms != NUL) | |
| 1838 { | |
| 1839 /* Also delete 'commentstring' if it matches. */ | |
| 1840 cms2 = (char_u *)strstr((char *)cms, "%s"); | |
| 1841 if (p - line >= cms2 - cms | |
| 1842 && STRNCMP(p - (cms2 - cms), cms, cms2 - cms) == 0 | |
| 1843 && STRNCMP(p + len, cms2 + 2, STRLEN(cms2 + 2)) == 0) | |
| 1844 { | |
| 1845 p -= cms2 - cms; | |
| 1846 len += (int)STRLEN(cms) - 2; | |
| 1847 } | |
| 1848 } | |
| 1849 if (u_save(lnum - 1, lnum + 1) == OK) | |
| 1850 { | |
| 1851 /* Make new line: text-before-marker + text-after-marker */ | |
| 1852 newline = alloc((unsigned)(STRLEN(line) - len + 1)); | |
| 1853 if (newline != NULL) | |
| 1854 { | |
| 1855 STRNCPY(newline, line, p - line); | |
| 1856 STRCPY(newline + (p - line), p + len); | |
| 1857 ml_replace(lnum, newline, FALSE); | |
| 1858 } | |
| 1859 } | |
| 1860 break; | |
| 1861 } | |
| 1862 } | |
| 1863 | |
| 29 | 1864 /* get_foldtext() {{{2 */ |
| 1865 /* | |
| 1866 * Return the text for a closed fold at line "lnum", with last line "lnume". | |
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1867 * When 'foldtext' isn't set puts the result in "buf[FOLD_TEXT_LEN]". |
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1868 * Otherwise the result is in allocated memory. |
| 29 | 1869 */ |
| 1870 char_u * | |
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1871 get_foldtext( |
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1872 win_T *wp, |
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1873 linenr_T lnum, |
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1874 linenr_T lnume, |
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1875 foldinfo_T *foldinfo, |
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1876 char_u *buf) |
| 29 | 1877 { |
| 1878 char_u *text = NULL; | |
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1879 #ifdef FEAT_EVAL |
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1880 /* an error occurred when evaluating 'fdt' setting */ |
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1881 static int got_fdt_error = FALSE; |
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1882 int save_did_emsg = did_emsg; |
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1883 static win_T *last_wp = NULL; |
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1884 static linenr_T last_lnum = 0; |
| 29 | 1885 |
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1886 if (last_wp != wp || last_wp == NULL |
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1887 || last_lnum > lnum || last_lnum == 0) |
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1888 /* window changed, try evaluating foldtext setting once again */ |
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1889 got_fdt_error = FALSE; |
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1890 |
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1891 if (!got_fdt_error) |
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1892 /* a previous error should not abort evaluating 'foldexpr' */ |
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1893 did_emsg = FALSE; |
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1894 |
| 29 | 1895 if (*wp->w_p_fdt != NUL) |
| 1896 { | |
| 1981 | 1897 char_u dashes[MAX_LEVEL + 2]; |
| 29 | 1898 win_T *save_curwin; |
| 1899 int level; | |
| 1900 char_u *p; | |
| 1901 | |
| 1902 /* Set "v:foldstart" and "v:foldend". */ | |
| 1903 set_vim_var_nr(VV_FOLDSTART, lnum); | |
| 1904 set_vim_var_nr(VV_FOLDEND, lnume); | |
| 1905 | |
| 1906 /* Set "v:folddashes" to a string of "level" dashes. */ | |
| 1907 /* Set "v:foldlevel" to "level". */ | |
| 1908 level = foldinfo->fi_level; | |
| 1981 | 1909 if (level > (int)sizeof(dashes) - 1) |
| 1910 level = (int)sizeof(dashes) - 1; | |
| 29 | 1911 vim_memset(dashes, '-', (size_t)level); |
| 1912 dashes[level] = NUL; | |
| 1913 set_vim_var_string(VV_FOLDDASHES, dashes, -1); | |
| 1914 set_vim_var_nr(VV_FOLDLEVEL, (long)level); | |
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1915 |
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1916 /* skip evaluating foldtext on errors */ |
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1917 if (!got_fdt_error) |
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1918 { |
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1919 save_curwin = curwin; |
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1920 curwin = wp; |
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1921 curbuf = wp->w_buffer; |
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1922 |
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1923 ++emsg_silent; /* handle exceptions, but don't display errors */ |
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1924 text = eval_to_string_safe(wp->w_p_fdt, NULL, |
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1925 was_set_insecurely((char_u *)"foldtext", OPT_LOCAL)); |
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1926 --emsg_silent; |
| 29 | 1927 |
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1928 if (text == NULL || did_emsg) |
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1929 got_fdt_error = TRUE; |
| 29 | 1930 |
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1931 curwin = save_curwin; |
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1932 curbuf = curwin->w_buffer; |
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1933 } |
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1934 last_lnum = lnum; |
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1935 last_wp = wp; |
| 29 | 1936 set_vim_var_string(VV_FOLDDASHES, NULL, -1); |
| 1937 | |
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1938 if (!did_emsg && save_did_emsg) |
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1939 did_emsg = save_did_emsg; |
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1940 |
| 29 | 1941 if (text != NULL) |
| 1942 { | |
| 1943 /* Replace unprintable characters, if there are any. But | |
| 1944 * replace a TAB with a space. */ | |
| 1945 for (p = text; *p != NUL; ++p) | |
| 1946 { | |
| 33 | 1947 int len; |
| 1948 | |
| 474 | 1949 if (has_mbyte && (len = (*mb_ptr2len)(p)) > 1) |
| 29 | 1950 { |
| 1951 if (!vim_isprintc((*mb_ptr2char)(p))) | |
| 1952 break; | |
| 1953 p += len - 1; | |
| 1954 } | |
| 1955 else | |
| 1956 if (*p == TAB) | |
| 1957 *p = ' '; | |
| 1958 else if (ptr2cells(p) > 1) | |
| 1959 break; | |
| 1960 } | |
| 1961 if (*p != NUL) | |
| 1962 { | |
| 1963 p = transstr(text); | |
| 1964 vim_free(text); | |
| 1965 text = p; | |
| 1966 } | |
| 1967 } | |
| 1968 } | |
| 1969 if (text == NULL) | |
| 1970 #endif | |
| 1971 { | |
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1972 long count = (long)(lnume - lnum + 1); |
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1973 |
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1974 vim_snprintf((char *)buf, FOLD_TEXT_LEN, |
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1975 NGETTEXT("+--%3ld line folded ", |
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1976 "+--%3ld lines folded ", count), |
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1977 count); |
| 29 | 1978 text = buf; |
| 1979 } | |
| 1980 return text; | |
| 1981 } | |
| 1982 | |
| 7 | 1983 /* foldtext_cleanup() {{{2 */ |
| 1984 /* | |
| 1985 * Remove 'foldmarker' and 'commentstring' from "str" (in-place). | |
| 1986 */ | |
| 1987 void | |
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1988 foldtext_cleanup(char_u *str) |
| 7 | 1989 { |
| 1990 char_u *cms_start; /* first part or the whole comment */ | |
| 1991 int cms_slen = 0; /* length of cms_start */ | |
| 1992 char_u *cms_end; /* last part of the comment or NULL */ | |
| 1993 int cms_elen = 0; /* length of cms_end */ | |
| 1994 char_u *s; | |
| 45 | 1995 char_u *p; |
| 7 | 1996 int len; |
| 1997 int did1 = FALSE; | |
| 1998 int did2 = FALSE; | |
| 1999 | |
| 2000 /* Ignore leading and trailing white space in 'commentstring'. */ | |
| 2001 cms_start = skipwhite(curbuf->b_p_cms); | |
| 835 | 2002 cms_slen = (int)STRLEN(cms_start); |
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2003 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
| 7 | 2004 --cms_slen; |
| 2005 | |
| 2006 /* locate "%s" in 'commentstring', use the part before and after it. */ | |
| 2007 cms_end = (char_u *)strstr((char *)cms_start, "%s"); | |
| 2008 if (cms_end != NULL) | |
| 2009 { | |
| 835 | 2010 cms_elen = cms_slen - (int)(cms_end - cms_start); |
| 2011 cms_slen = (int)(cms_end - cms_start); | |
| 7 | 2012 |
| 2013 /* exclude white space before "%s" */ | |
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2014 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
| 7 | 2015 --cms_slen; |
| 2016 | |
| 2017 /* skip "%s" and white space after it */ | |
| 2018 s = skipwhite(cms_end + 2); | |
| 835 | 2019 cms_elen -= (int)(s - cms_end); |
| 7 | 2020 cms_end = s; |
| 2021 } | |
| 2022 parseMarker(curwin); | |
| 2023 | |
| 2024 for (s = str; *s != NUL; ) | |
| 2025 { | |
| 2026 len = 0; | |
| 2027 if (STRNCMP(s, curwin->w_p_fmr, foldstartmarkerlen) == 0) | |
| 45 | 2028 len = foldstartmarkerlen; |
| 2029 else if (STRNCMP(s, foldendmarker, foldendmarkerlen) == 0) | |
| 2030 len = foldendmarkerlen; | |
| 2031 if (len > 0) | |
| 7 | 2032 { |
| 2033 if (VIM_ISDIGIT(s[len])) | |
| 2034 ++len; | |
| 45 | 2035 |
| 2036 /* May remove 'commentstring' start. Useful when it's a double | |
| 2037 * quote and we already removed a double quote. */ | |
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2038 for (p = s; p > str && VIM_ISWHITE(p[-1]); --p) |
| 45 | 2039 ; |
| 2040 if (p >= str + cms_slen | |
| 2041 && STRNCMP(p - cms_slen, cms_start, cms_slen) == 0) | |
| 2042 { | |
| 835 | 2043 len += (int)(s - p) + cms_slen; |
| 45 | 2044 s = p - cms_slen; |
| 2045 } | |
| 7 | 2046 } |
| 2047 else if (cms_end != NULL) | |
| 2048 { | |
| 45 | 2049 if (!did1 && cms_slen > 0 && STRNCMP(s, cms_start, cms_slen) == 0) |
| 7 | 2050 { |
| 2051 len = cms_slen; | |
| 2052 did1 = TRUE; | |
| 2053 } | |
| 45 | 2054 else if (!did2 && cms_elen > 0 |
| 2055 && STRNCMP(s, cms_end, cms_elen) == 0) | |
| 7 | 2056 { |
| 2057 len = cms_elen; | |
| 2058 did2 = TRUE; | |
| 2059 } | |
| 2060 } | |
| 2061 if (len != 0) | |
| 2062 { | |
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2063 while (VIM_ISWHITE(s[len])) |
| 7 | 2064 ++len; |
| 1624 | 2065 STRMOVE(s, s + len); |
| 7 | 2066 } |
| 2067 else | |
| 2068 { | |
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2069 MB_PTR_ADV(s); |
| 7 | 2070 } |
| 2071 } | |
| 2072 } | |
| 2073 | |
| 2074 /* Folding by indent, expr, marker and syntax. {{{1 */ | |
| 2075 /* Define "fline_T", passed to get fold level for a line. {{{2 */ | |
| 2076 typedef struct | |
| 2077 { | |
| 2078 win_T *wp; /* window */ | |
| 2079 linenr_T lnum; /* current line number */ | |
| 2080 linenr_T off; /* offset between lnum and real line number */ | |
| 2081 linenr_T lnum_save; /* line nr used by foldUpdateIEMSRecurse() */ | |
| 2082 int lvl; /* current level (-1 for undefined) */ | |
| 2083 int lvl_next; /* level used for next line */ | |
| 2084 int start; /* number of folds that are forced to start at | |
| 2085 this line. */ | |
| 2086 int end; /* level of fold that is forced to end below | |
| 2087 this line */ | |
| 2088 int had_end; /* level of fold that is forced to end above | |
| 2089 this line (copy of "end" of prev. line) */ | |
| 2090 } fline_T; | |
| 2091 | |
| 2092 /* Flag is set when redrawing is needed. */ | |
| 2093 static int fold_changed; | |
| 2094 | |
| 2095 /* Function declarations. {{{2 */ | |
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2096 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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2097 static int foldInsert(garray_T *gap, int i); |
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2098 static void foldSplit(garray_T *gap, int i, linenr_T top, linenr_T bot); |
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2099 static void foldRemove(garray_T *gap, linenr_T top, linenr_T bot); |
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2100 static void foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2); |
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2101 static void foldlevelIndent(fline_T *flp); |
| 7 | 2102 #ifdef FEAT_DIFF |
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2103 static void foldlevelDiff(fline_T *flp); |
| 7 | 2104 #endif |
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2105 static void foldlevelExpr(fline_T *flp); |
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2106 static void foldlevelMarker(fline_T *flp); |
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2107 static void foldlevelSyntax(fline_T *flp); |
| 7 | 2108 |
| 2109 /* foldUpdateIEMS() {{{2 */ | |
| 2110 /* | |
| 2111 * Update the folding for window "wp", at least from lines "top" to "bot". | |
| 2112 * Return TRUE if any folds did change. | |
| 2113 */ | |
| 2114 static void | |
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2115 foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot) |
| 7 | 2116 { |
| 2117 linenr_T start; | |
| 2118 linenr_T end; | |
| 2119 fline_T fline; | |
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2120 void (*getlevel)(fline_T *); |
| 7 | 2121 int level; |
| 2122 fold_T *fp; | |
| 2123 | |
| 2124 /* Avoid problems when being called recursively. */ | |
| 2125 if (invalid_top != (linenr_T)0) | |
| 2126 return; | |
| 2127 | |
| 2128 if (wp->w_foldinvalid) | |
| 2129 { | |
| 2130 /* Need to update all folds. */ | |
| 2131 top = 1; | |
| 2132 bot = wp->w_buffer->b_ml.ml_line_count; | |
| 2133 wp->w_foldinvalid = FALSE; | |
| 2134 | |
| 2135 /* Mark all folds a maybe-small. */ | |
| 2136 setSmallMaybe(&wp->w_folds); | |
| 2137 } | |
| 2138 | |
| 2139 #ifdef FEAT_DIFF | |
| 2140 /* add the context for "diff" folding */ | |
| 2141 if (foldmethodIsDiff(wp)) | |
| 2142 { | |
| 2143 if (top > diff_context) | |
| 2144 top -= diff_context; | |
| 2145 else | |
| 2146 top = 1; | |
| 2147 bot += diff_context; | |
| 2148 } | |
| 2149 #endif | |
| 2150 | |
| 2151 /* When deleting lines at the end of the buffer "top" can be past the end | |
| 2152 * of the buffer. */ | |
| 2153 if (top > wp->w_buffer->b_ml.ml_line_count) | |
| 2154 top = wp->w_buffer->b_ml.ml_line_count; | |
| 2155 | |
| 2156 fold_changed = FALSE; | |
| 2157 fline.wp = wp; | |
| 2158 fline.off = 0; | |
| 2159 fline.lvl = 0; | |
| 2160 fline.lvl_next = -1; | |
| 2161 fline.start = 0; | |
| 2162 fline.end = MAX_LEVEL + 1; | |
| 2163 fline.had_end = MAX_LEVEL + 1; | |
| 2164 | |
| 2165 invalid_top = top; | |
| 2166 invalid_bot = bot; | |
| 2167 | |
| 2168 if (foldmethodIsMarker(wp)) | |
| 2169 { | |
| 2170 getlevel = foldlevelMarker; | |
| 2171 | |
| 2172 /* Init marker variables to speed up foldlevelMarker(). */ | |
| 2173 parseMarker(wp); | |
| 2174 | |
| 2175 /* Need to get the level of the line above top, it is used if there is | |
| 2176 * no marker at the top. */ | |
| 2177 if (top > 1) | |
| 2178 { | |
| 2179 /* Get the fold level at top - 1. */ | |
| 2180 level = foldLevelWin(wp, top - 1); | |
| 2181 | |
| 2182 /* The fold may end just above the top, check for that. */ | |
| 2183 fline.lnum = top - 1; | |
| 2184 fline.lvl = level; | |
| 2185 getlevel(&fline); | |
| 2186 | |
| 2187 /* If a fold started here, we already had the level, if it stops | |
| 2188 * here, we need to use lvl_next. Could also start and end a fold | |
| 2189 * in the same line. */ | |
| 2190 if (fline.lvl > level) | |
| 2191 fline.lvl = level - (fline.lvl - fline.lvl_next); | |
| 2192 else | |
| 2193 fline.lvl = fline.lvl_next; | |
| 2194 } | |
| 2195 fline.lnum = top; | |
| 2196 getlevel(&fline); | |
| 2197 } | |
| 2198 else | |
| 2199 { | |
| 2200 fline.lnum = top; | |
| 2201 if (foldmethodIsExpr(wp)) | |
| 2202 { | |
| 2203 getlevel = foldlevelExpr; | |
| 2204 /* start one line back, because a "<1" may indicate the end of a | |
| 2205 * fold in the topline */ | |
| 2206 if (top > 1) | |
| 2207 --fline.lnum; | |
| 2208 } | |
| 2209 else if (foldmethodIsSyntax(wp)) | |
| 2210 getlevel = foldlevelSyntax; | |
| 2211 #ifdef FEAT_DIFF | |
| 2212 else if (foldmethodIsDiff(wp)) | |
| 2213 getlevel = foldlevelDiff; | |
| 2214 #endif | |
| 2215 else | |
| 2216 getlevel = foldlevelIndent; | |
| 2217 | |
| 2218 /* Backup to a line for which the fold level is defined. Since it's | |
| 2219 * always defined for line one, we will stop there. */ | |
| 2220 fline.lvl = -1; | |
| 2221 for ( ; !got_int; --fline.lnum) | |
| 2222 { | |
| 2223 /* Reset lvl_next each time, because it will be set to a value for | |
| 2224 * the next line, but we search backwards here. */ | |
| 2225 fline.lvl_next = -1; | |
| 2226 getlevel(&fline); | |
| 2227 if (fline.lvl >= 0) | |
| 2228 break; | |
| 2229 } | |
| 2230 } | |
| 2231 | |
| 1977 | 2232 /* |
| 2233 * If folding is defined by the syntax, it is possible that a change in | |
| 2234 * one line will cause all sub-folds of the current fold to change (e.g., | |
| 2235 * closing a C-style comment can cause folds in the subsequent lines to | |
| 2236 * appear). To take that into account we should adjust the value of "bot" | |
| 2237 * to point to the end of the current fold: | |
| 2238 */ | |
| 2239 if (foldlevelSyntax == getlevel) | |
| 2240 { | |
| 2241 garray_T *gap = &wp->w_folds; | |
|
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|
2242 fold_T *fpn = NULL; |
| 1977 | 2243 int current_fdl = 0; |
| 2244 linenr_T fold_start_lnum = 0; | |
| 2245 linenr_T lnum_rel = fline.lnum; | |
| 2246 | |
| 2247 while (current_fdl < fline.lvl) | |
| 2248 { | |
|
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|
2249 if (!foldFind(gap, lnum_rel, &fpn)) |
| 1977 | 2250 break; |
| 2251 ++current_fdl; | |
| 2252 | |
|
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|
2253 fold_start_lnum += fpn->fd_top; |
|
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|
2254 gap = &fpn->fd_nested; |
|
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|
2255 lnum_rel -= fpn->fd_top; |
| 1977 | 2256 } |
|
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|
2257 if (fpn != NULL && current_fdl == fline.lvl) |
| 1977 | 2258 { |
|
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|
2259 linenr_T fold_end_lnum = fold_start_lnum + fpn->fd_len; |
| 1977 | 2260 |
| 2261 if (fold_end_lnum > bot) | |
| 2262 bot = fold_end_lnum; | |
| 2263 } | |
| 2264 } | |
| 2265 | |
| 7 | 2266 start = fline.lnum; |
| 2267 end = bot; | |
| 2268 /* Do at least one line. */ | |
| 2269 if (start > end && end < wp->w_buffer->b_ml.ml_line_count) | |
| 2270 end = start; | |
| 2271 while (!got_int) | |
| 2272 { | |
| 2273 /* Always stop at the end of the file ("end" can be past the end of | |
| 2274 * the file). */ | |
| 2275 if (fline.lnum > wp->w_buffer->b_ml.ml_line_count) | |
| 2276 break; | |
| 2277 if (fline.lnum > end) | |
| 2278 { | |
| 2279 /* For "marker", "expr" and "syntax" methods: If a change caused | |
| 2280 * a fold to be removed, we need to continue at least until where | |
| 2281 * it ended. */ | |
| 2282 if (getlevel != foldlevelMarker | |
| 2283 && getlevel != foldlevelSyntax | |
| 2284 && getlevel != foldlevelExpr) | |
| 2285 break; | |
| 2286 if ((start <= end | |
| 2287 && foldFind(&wp->w_folds, end, &fp) | |
| 2288 && fp->fd_top + fp->fd_len - 1 > end) | |
| 2289 || (fline.lvl == 0 | |
| 2290 && foldFind(&wp->w_folds, fline.lnum, &fp) | |
| 2291 && fp->fd_top < fline.lnum)) | |
| 2292 end = fp->fd_top + fp->fd_len - 1; | |
| 2293 else if (getlevel == foldlevelSyntax | |
| 2294 && foldLevelWin(wp, fline.lnum) != fline.lvl) | |
| 2295 /* For "syntax" method: Compare the foldlevel that the syntax | |
| 2296 * tells us to the foldlevel from the existing folds. If they | |
| 2297 * don't match continue updating folds. */ | |
| 2298 end = fline.lnum; | |
| 2299 else | |
| 2300 break; | |
| 2301 } | |
| 2302 | |
| 2303 /* A level 1 fold starts at a line with foldlevel > 0. */ | |
| 2304 if (fline.lvl > 0) | |
| 2305 { | |
| 2306 invalid_top = fline.lnum; | |
| 2307 invalid_bot = end; | |
| 2308 end = foldUpdateIEMSRecurse(&wp->w_folds, | |
| 2309 1, start, &fline, getlevel, end, FD_LEVEL); | |
| 2310 start = fline.lnum; | |
| 2311 } | |
| 2312 else | |
| 2313 { | |
| 2314 if (fline.lnum == wp->w_buffer->b_ml.ml_line_count) | |
| 2315 break; | |
| 2316 ++fline.lnum; | |
| 2317 fline.lvl = fline.lvl_next; | |
| 2318 getlevel(&fline); | |
| 2319 } | |
| 2320 } | |
| 2321 | |
| 2322 /* There can't be any folds from start until end now. */ | |
| 2323 foldRemove(&wp->w_folds, start, end); | |
| 2324 | |
| 2325 /* If some fold changed, need to redraw and position cursor. */ | |
| 2326 if (fold_changed && wp->w_p_fen) | |
| 1554 | 2327 changed_window_setting_win(wp); |
| 7 | 2328 |
| 2329 /* If we updated folds past "bot", need to redraw more lines. Don't do | |
| 2330 * this in other situations, the changed lines will be redrawn anyway and | |
| 2331 * this method can cause the whole window to be updated. */ | |
| 2332 if (end != bot) | |
| 2333 { | |
| 2334 if (wp->w_redraw_top == 0 || wp->w_redraw_top > top) | |
| 2335 wp->w_redraw_top = top; | |
| 2336 if (wp->w_redraw_bot < end) | |
| 2337 wp->w_redraw_bot = end; | |
| 2338 } | |
| 2339 | |
| 2340 invalid_top = (linenr_T)0; | |
| 2341 } | |
| 2342 | |
| 2343 /* foldUpdateIEMSRecurse() {{{2 */ | |
| 2344 /* | |
| 2345 * Update a fold that starts at "flp->lnum". At this line there is always a | |
| 2346 * valid foldlevel, and its level >= "level". | |
| 2347 * "flp" is valid for "flp->lnum" when called and it's valid when returning. | |
| 2348 * "flp->lnum" is set to the lnum just below the fold, if it ends before | |
| 2349 * "bot", it's "bot" plus one if the fold continues and it's bigger when using | |
| 2350 * the marker method and a text change made following folds to change. | |
| 2351 * When returning, "flp->lnum_save" is the line number that was used to get | |
| 2352 * the level when the level at "flp->lnum" is invalid. | |
| 2353 * Remove any folds from "startlnum" up to here at this level. | |
| 2354 * Recursively update nested folds. | |
| 2355 * Below line "bot" there are no changes in the text. | |
| 2356 * "flp->lnum", "flp->lnum_save" and "bot" are relative to the start of the | |
| 2357 * outer fold. | |
| 2358 * "flp->off" is the offset to the real line number in the buffer. | |
| 2359 * | |
| 2360 * All this would be a lot simpler if all folds in the range would be deleted | |
| 1698 | 2361 * and then created again. But we would lose all information about the |
| 7 | 2362 * folds, even when making changes that don't affect the folding (e.g. "vj~"). |
| 2363 * | |
| 2364 * Returns bot, which may have been increased for lines that also need to be | |
| 2365 * updated as a result of a detected change in the fold. | |
| 2366 */ | |
| 2367 static linenr_T | |
|
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changeset
|
2368 foldUpdateIEMSRecurse( |
|
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|
2369 garray_T *gap, |
|
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changeset
|
2370 int level, |
|
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|
2371 linenr_T startlnum, |
|
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|
2372 fline_T *flp, |
|
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|
2373 void (*getlevel)(fline_T *), |
|
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|
2374 linenr_T bot, |
|
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diff
changeset
|
2375 int topflags) /* flags used by containing fold */ |
| 7 | 2376 { |
| 2377 linenr_T ll; | |
| 2378 fold_T *fp = NULL; | |
| 2379 fold_T *fp2; | |
| 2380 int lvl = level; | |
| 2381 linenr_T startlnum2 = startlnum; | |
| 2382 linenr_T firstlnum = flp->lnum; /* first lnum we got */ | |
| 2383 int i; | |
| 2384 int finish = FALSE; | |
| 2385 linenr_T linecount = flp->wp->w_buffer->b_ml.ml_line_count - flp->off; | |
| 2386 int concat; | |
| 2387 | |
| 2388 /* | |
| 2389 * If using the marker method, the start line is not the start of a fold | |
| 2390 * at the level we're dealing with and the level is non-zero, we must use | |
| 2391 * the previous fold. But ignore a fold that starts at or below | |
| 2392 * startlnum, it must be deleted. | |
| 2393 */ | |
| 2394 if (getlevel == foldlevelMarker && flp->start <= flp->lvl - level | |
| 2395 && flp->lvl > 0) | |
| 2396 { | |
| 7009 | 2397 (void)foldFind(gap, startlnum - 1, &fp); |
| 7 | 2398 if (fp >= ((fold_T *)gap->ga_data) + gap->ga_len |
| 2399 || fp->fd_top >= startlnum) | |
| 2400 fp = NULL; | |
| 2401 } | |
| 2402 | |
| 2403 /* | |
| 2404 * Loop over all lines in this fold, or until "bot" is hit. | |
| 2405 * Handle nested folds inside of this fold. | |
| 2406 * "flp->lnum" is the current line. When finding the end of the fold, it | |
| 2407 * is just below the end of the fold. | |
| 2408 * "*flp" contains the level of the line "flp->lnum" or a following one if | |
| 2409 * there are lines with an invalid fold level. "flp->lnum_save" is the | |
| 2410 * line number that was used to get the fold level (below "flp->lnum" when | |
| 2411 * it has an invalid fold level). When called the fold level is always | |
| 2412 * valid, thus "flp->lnum_save" is equal to "flp->lnum". | |
| 2413 */ | |
| 2414 flp->lnum_save = flp->lnum; | |
| 2415 while (!got_int) | |
| 2416 { | |
| 2417 /* Updating folds can be slow, check for CTRL-C. */ | |
| 2418 line_breakcheck(); | |
| 2419 | |
| 2420 /* Set "lvl" to the level of line "flp->lnum". When flp->start is set | |
| 2421 * and after the first line of the fold, set the level to zero to | |
| 2422 * force the fold to end. Do the same when had_end is set: Previous | |
| 2423 * line was marked as end of a fold. */ | |
| 2424 lvl = flp->lvl; | |
| 2425 if (lvl > MAX_LEVEL) | |
| 2426 lvl = MAX_LEVEL; | |
| 2427 if (flp->lnum > firstlnum | |
| 2428 && (level > lvl - flp->start || level >= flp->had_end)) | |
| 2429 lvl = 0; | |
| 2430 | |
| 2431 if (flp->lnum > bot && !finish && fp != NULL) | |
| 2432 { | |
| 2433 /* For "marker" and "syntax" methods: | |
| 2434 * - If a change caused a nested fold to be removed, we need to | |
| 2435 * delete it and continue at least until where it ended. | |
| 2436 * - If a change caused a nested fold to be created, or this fold | |
| 2437 * to continue below its original end, need to finish this fold. | |
| 2438 */ | |
| 2439 if (getlevel != foldlevelMarker | |
| 2440 && getlevel != foldlevelExpr | |
| 2441 && getlevel != foldlevelSyntax) | |
| 2442 break; | |
| 2443 i = 0; | |
| 2444 fp2 = fp; | |
| 2445 if (lvl >= level) | |
| 2446 { | |
| 2447 /* Compute how deep the folds currently are, if it's deeper | |
| 2448 * than "lvl" then some must be deleted, need to update | |
| 2449 * at least one nested fold. */ | |
| 2450 ll = flp->lnum - fp->fd_top; | |
| 2451 while (foldFind(&fp2->fd_nested, ll, &fp2)) | |
| 2452 { | |
| 2453 ++i; | |
| 2454 ll -= fp2->fd_top; | |
| 2455 } | |
| 2456 } | |
| 2457 if (lvl < level + i) | |
| 2458 { | |
| 7009 | 2459 (void)foldFind(&fp->fd_nested, flp->lnum - fp->fd_top, &fp2); |
| 7 | 2460 if (fp2 != NULL) |
| 2461 bot = fp2->fd_top + fp2->fd_len - 1 + fp->fd_top; | |
| 2462 } | |
| 2463 else if (fp->fd_top + fp->fd_len <= flp->lnum && lvl >= level) | |
| 2464 finish = TRUE; | |
| 2465 else | |
| 2466 break; | |
| 2467 } | |
| 2468 | |
| 2469 /* At the start of the first nested fold and at the end of the current | |
| 2470 * fold: check if existing folds at this level, before the current | |
| 2471 * one, need to be deleted or truncated. */ | |
| 2472 if (fp == NULL | |
| 2473 && (lvl != level | |
| 2474 || flp->lnum_save >= bot | |
| 2475 || flp->start != 0 | |
| 2476 || flp->had_end <= MAX_LEVEL | |
| 2477 || flp->lnum == linecount)) | |
| 2478 { | |
| 2479 /* | |
| 2480 * Remove or update folds that have lines between startlnum and | |
| 2481 * firstlnum. | |
| 2482 */ | |
| 2483 while (!got_int) | |
| 2484 { | |
| 2485 /* set concat to 1 if it's allowed to concatenated this fold | |
| 2486 * with a previous one that touches it. */ | |
| 2487 if (flp->start != 0 || flp->had_end <= MAX_LEVEL) | |
| 2488 concat = 0; | |
| 2489 else | |
| 2490 concat = 1; | |
| 2491 | |
| 2492 /* Find an existing fold to re-use. Preferably one that | |
| 2493 * includes startlnum, otherwise one that ends just before | |
| 2494 * startlnum or starts after it. */ | |
| 2495 if (foldFind(gap, startlnum, &fp) | |
| 2496 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
| 2497 && fp->fd_top <= firstlnum) | |
| 2498 || foldFind(gap, firstlnum - concat, &fp) | |
| 2499 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
| 2500 && ((lvl < level && fp->fd_top < flp->lnum) | |
| 2501 || (lvl >= level | |
| 2502 && fp->fd_top <= flp->lnum_save)))) | |
| 2503 { | |
| 2504 if (fp->fd_top + fp->fd_len + concat > firstlnum) | |
| 2505 { | |
| 2506 /* Use existing fold for the new fold. If it starts | |
| 2507 * before where we started looking, extend it. If it | |
| 2508 * starts at another line, update nested folds to keep | |
| 2509 * their position, compensating for the new fd_top. */ | |
|
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2510 if (fp->fd_top == firstlnum) |
|
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|
2511 { |
|
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|
2512 /* have found a fold beginning where we want */ |
|
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2513 } |
|
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|
2514 else if (fp->fd_top >= startlnum) |
| 7 | 2515 { |
| 2516 if (fp->fd_top > firstlnum) | |
| 2517 /* like lines are inserted */ | |
| 2518 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2519 (linenr_T)0, (linenr_T)MAXLNUM, | |
| 2520 (long)(fp->fd_top - firstlnum), 0L); | |
| 2521 else | |
| 2522 /* like lines are deleted */ | |
| 2523 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2524 (linenr_T)0, | |
| 2525 (long)(firstlnum - fp->fd_top - 1), | |
| 2526 (linenr_T)MAXLNUM, | |
| 2527 (long)(fp->fd_top - firstlnum)); | |
| 2528 fp->fd_len += fp->fd_top - firstlnum; | |
| 2529 fp->fd_top = firstlnum; | |
| 2530 fold_changed = TRUE; | |
| 2531 } | |
|
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2532 else if ((flp->start != 0 && lvl == level) |
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2533 || firstlnum != startlnum) |
| 7 | 2534 { |
|
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|
2535 linenr_T breakstart; |
|
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|
2536 linenr_T breakend; |
|
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|
2537 |
|
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2538 /* |
|
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2539 * Before there was a fold spanning from above |
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2540 * startlnum to below firstlnum. This fold is valid |
|
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2541 * above startlnum (because we are not updating |
|
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2542 * that range), but there should now be a break in |
|
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2543 * it. |
|
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2544 * If the break is because we are now forced to |
|
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2545 * start a new fold at the level "level" at line |
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2546 * fline->lnum, then we need to split the fold at |
|
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2547 * fline->lnum. |
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2548 * If the break is because the range |
|
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2549 * [startlnum, firstlnum) is now at a lower indent |
|
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2550 * than "level", we need to split the fold in this |
|
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2551 * range. |
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changeset
|
2552 * Any splits have to be done recursively. |
|
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diff
changeset
|
2553 */ |
|
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parents:
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diff
changeset
|
2554 if (firstlnum != startlnum) |
|
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diff
changeset
|
2555 { |
|
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parents:
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diff
changeset
|
2556 breakstart = startlnum; |
|
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parents:
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diff
changeset
|
2557 breakend = firstlnum; |
|
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parents:
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changeset
|
2558 } |
|
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parents:
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diff
changeset
|
2559 else |
|
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parents:
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diff
changeset
|
2560 { |
|
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parents:
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diff
changeset
|
2561 breakstart = flp->lnum; |
|
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parents:
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diff
changeset
|
2562 breakend = flp->lnum; |
|
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parents:
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diff
changeset
|
2563 } |
|
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parents:
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diff
changeset
|
2564 foldRemove(&fp->fd_nested, breakstart - fp->fd_top, |
|
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parents:
10998
diff
changeset
|
2565 breakend - fp->fd_top); |
| 7 | 2566 i = (int)(fp - (fold_T *)gap->ga_data); |
|
11038
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parents:
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diff
changeset
|
2567 foldSplit(gap, i, breakstart, breakend - 1); |
| 7 | 2568 fp = (fold_T *)gap->ga_data + i + 1; |
|
11038
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parents:
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diff
changeset
|
2569 |
| 7 | 2570 /* If using the "marker" or "syntax" method, we |
| 2571 * need to continue until the end of the fold is | |
| 2572 * found. */ | |
| 2573 if (getlevel == foldlevelMarker | |
| 2574 || getlevel == foldlevelExpr | |
| 2575 || getlevel == foldlevelSyntax) | |
| 2576 finish = TRUE; | |
| 2577 } | |
|
11038
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parents:
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diff
changeset
|
2578 |
|
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parents:
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diff
changeset
|
2579 if (fp->fd_top == startlnum && concat) |
|
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parents:
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diff
changeset
|
2580 { |
|
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parents:
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diff
changeset
|
2581 i = (int)(fp - (fold_T *)gap->ga_data); |
|
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changeset
|
2582 if (i != 0) |
|
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parents:
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diff
changeset
|
2583 { |
|
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parents:
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diff
changeset
|
2584 fp2 = fp - 1; |
|
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parents:
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diff
changeset
|
2585 if (fp2->fd_top + fp2->fd_len == fp->fd_top) |
|
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parents:
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diff
changeset
|
2586 { |
|
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parents:
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diff
changeset
|
2587 foldMerge(fp2, gap, fp); |
|
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parents:
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diff
changeset
|
2588 fp = fp2; |
|
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parents:
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diff
changeset
|
2589 } |
|
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patch 8.0.0408: updating folds does not always work properly
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parents:
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diff
changeset
|
2590 } |
|
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parents:
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diff
changeset
|
2591 } |
| 7 | 2592 break; |
| 2593 } | |
| 2594 if (fp->fd_top >= startlnum) | |
| 2595 { | |
| 2596 /* A fold that starts at or after startlnum and stops | |
| 2597 * before the new fold must be deleted. Continue | |
| 2598 * looking for the next one. */ | |
| 2599 deleteFoldEntry(gap, | |
| 2600 (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
| 2601 } | |
| 2602 else | |
| 2603 { | |
| 2604 /* A fold has some lines above startlnum, truncate it | |
| 2605 * to stop just above startlnum. */ | |
| 2606 fp->fd_len = startlnum - fp->fd_top; | |
| 2607 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2608 (linenr_T)fp->fd_len, (linenr_T)MAXLNUM, | |
| 2609 (linenr_T)MAXLNUM, 0L); | |
| 2610 fold_changed = TRUE; | |
| 2611 } | |
| 2612 } | |
| 2613 else | |
| 2614 { | |
| 2615 /* Insert new fold. Careful: ga_data may be NULL and it | |
| 2616 * may change! */ | |
| 2617 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 2618 if (foldInsert(gap, i) != OK) | |
| 2619 return bot; | |
| 2620 fp = (fold_T *)gap->ga_data + i; | |
| 2621 /* The new fold continues until bot, unless we find the | |
| 2622 * end earlier. */ | |
| 2623 fp->fd_top = firstlnum; | |
| 2624 fp->fd_len = bot - firstlnum + 1; | |
| 2625 /* When the containing fold is open, the new fold is open. | |
| 2626 * The new fold is closed if the fold above it is closed. | |
| 2627 * The first fold depends on the containing fold. */ | |
| 2628 if (topflags == FD_OPEN) | |
| 2629 { | |
| 2630 flp->wp->w_fold_manual = TRUE; | |
| 2631 fp->fd_flags = FD_OPEN; | |
| 2632 } | |
| 2633 else if (i <= 0) | |
| 2634 { | |
| 2635 fp->fd_flags = topflags; | |
| 2636 if (topflags != FD_LEVEL) | |
| 2637 flp->wp->w_fold_manual = TRUE; | |
| 2638 } | |
| 2639 else | |
| 2640 fp->fd_flags = (fp - 1)->fd_flags; | |
| 2641 fp->fd_small = MAYBE; | |
| 2642 /* If using the "marker", "expr" or "syntax" method, we | |
| 2643 * need to continue until the end of the fold is found. */ | |
| 2644 if (getlevel == foldlevelMarker | |
| 2645 || getlevel == foldlevelExpr | |
| 2646 || getlevel == foldlevelSyntax) | |
| 2647 finish = TRUE; | |
| 2648 fold_changed = TRUE; | |
| 2649 break; | |
| 2650 } | |
| 2651 } | |
| 2652 } | |
| 2653 | |
| 2654 if (lvl < level || flp->lnum > linecount) | |
| 2655 { | |
| 2656 /* | |
| 2657 * Found a line with a lower foldlevel, this fold ends just above | |
| 2658 * "flp->lnum". | |
| 2659 */ | |
| 2660 break; | |
| 2661 } | |
| 2662 | |
| 2663 /* | |
| 2664 * The fold includes the line "flp->lnum" and "flp->lnum_save". | |
| 840 | 2665 * Check "fp" for safety. |
| 7 | 2666 */ |
| 840 | 2667 if (lvl > level && fp != NULL) |
| 7 | 2668 { |
| 2669 /* | |
| 2670 * There is a nested fold, handle it recursively. | |
| 2671 */ | |
| 2672 /* At least do one line (can happen when finish is TRUE). */ | |
| 2673 if (bot < flp->lnum) | |
| 2674 bot = flp->lnum; | |
| 2675 | |
| 2676 /* Line numbers in the nested fold are relative to the start of | |
| 2677 * this fold. */ | |
| 2678 flp->lnum = flp->lnum_save - fp->fd_top; | |
| 2679 flp->off += fp->fd_top; | |
| 2680 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 2681 bot = foldUpdateIEMSRecurse(&fp->fd_nested, level + 1, | |
| 2682 startlnum2 - fp->fd_top, flp, getlevel, | |
| 2683 bot - fp->fd_top, fp->fd_flags); | |
| 2684 fp = (fold_T *)gap->ga_data + i; | |
| 2685 flp->lnum += fp->fd_top; | |
| 2686 flp->lnum_save += fp->fd_top; | |
| 2687 flp->off -= fp->fd_top; | |
| 2688 bot += fp->fd_top; | |
| 2689 startlnum2 = flp->lnum; | |
| 2690 | |
| 2691 /* This fold may end at the same line, don't incr. flp->lnum. */ | |
| 2692 } | |
| 2693 else | |
| 2694 { | |
| 2695 /* | |
| 2696 * Get the level of the next line, then continue the loop to check | |
| 2697 * if it ends there. | |
| 2698 * Skip over undefined lines, to find the foldlevel after it. | |
| 2699 * For the last line in the file the foldlevel is always valid. | |
| 2700 */ | |
| 2701 flp->lnum = flp->lnum_save; | |
| 2702 ll = flp->lnum + 1; | |
| 2703 while (!got_int) | |
| 2704 { | |
| 2705 /* Make the previous level available to foldlevel(). */ | |
| 2706 prev_lnum = flp->lnum; | |
| 2707 prev_lnum_lvl = flp->lvl; | |
| 2708 | |
| 2709 if (++flp->lnum > linecount) | |
| 2710 break; | |
| 2711 flp->lvl = flp->lvl_next; | |
| 2712 getlevel(flp); | |
| 2713 if (flp->lvl >= 0 || flp->had_end <= MAX_LEVEL) | |
| 2714 break; | |
| 2715 } | |
| 2716 prev_lnum = 0; | |
| 2717 if (flp->lnum > linecount) | |
| 2718 break; | |
| 2719 | |
| 2720 /* leave flp->lnum_save to lnum of the line that was used to get | |
| 2721 * the level, flp->lnum to the lnum of the next line. */ | |
| 2722 flp->lnum_save = flp->lnum; | |
| 2723 flp->lnum = ll; | |
| 2724 } | |
| 2725 } | |
| 2726 | |
| 2727 if (fp == NULL) /* only happens when got_int is set */ | |
| 2728 return bot; | |
| 2729 | |
| 2730 /* | |
| 2731 * Get here when: | |
| 2732 * lvl < level: the folds ends just above "flp->lnum" | |
| 2733 * lvl >= level: fold continues below "bot" | |
| 2734 */ | |
| 2735 | |
| 2736 /* Current fold at least extends until lnum. */ | |
| 2737 if (fp->fd_len < flp->lnum - fp->fd_top) | |
| 2738 { | |
| 2739 fp->fd_len = flp->lnum - fp->fd_top; | |
| 1513 | 2740 fp->fd_small = MAYBE; |
| 7 | 2741 fold_changed = TRUE; |
| 2742 } | |
| 2743 | |
| 2744 /* Delete contained folds from the end of the last one found until where | |
| 2745 * we stopped looking. */ | |
| 2746 foldRemove(&fp->fd_nested, startlnum2 - fp->fd_top, | |
| 2747 flp->lnum - 1 - fp->fd_top); | |
| 2748 | |
| 2749 if (lvl < level) | |
| 2750 { | |
| 2751 /* End of fold found, update the length when it got shorter. */ | |
| 2752 if (fp->fd_len != flp->lnum - fp->fd_top) | |
| 2753 { | |
|
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11165
diff
changeset
|
2754 if (fp->fd_top + fp->fd_len - 1 > bot) |
| 7 | 2755 { |
| 1224 | 2756 /* fold continued below bot */ |
| 7 | 2757 if (getlevel == foldlevelMarker |
| 2758 || getlevel == foldlevelExpr | |
| 2759 || getlevel == foldlevelSyntax) | |
| 2760 { | |
| 2761 /* marker method: truncate the fold and make sure the | |
| 2762 * previously included lines are processed again */ | |
| 2763 bot = fp->fd_top + fp->fd_len - 1; | |
| 2764 fp->fd_len = flp->lnum - fp->fd_top; | |
| 2765 } | |
| 2766 else | |
| 2767 { | |
| 2768 /* indent or expr method: split fold to create a new one | |
| 2769 * below bot */ | |
| 2770 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 2771 foldSplit(gap, i, flp->lnum, bot); | |
| 2772 fp = (fold_T *)gap->ga_data + i; | |
| 2773 } | |
| 2774 } | |
| 2775 else | |
| 2776 fp->fd_len = flp->lnum - fp->fd_top; | |
| 2777 fold_changed = TRUE; | |
| 2778 } | |
| 2779 } | |
| 2780 | |
| 2781 /* delete following folds that end before the current line */ | |
| 2782 for (;;) | |
| 2783 { | |
| 2784 fp2 = fp + 1; | |
| 2785 if (fp2 >= (fold_T *)gap->ga_data + gap->ga_len | |
| 2786 || fp2->fd_top > flp->lnum) | |
| 2787 break; | |
| 2788 if (fp2->fd_top + fp2->fd_len > flp->lnum) | |
| 2789 { | |
| 2790 if (fp2->fd_top < flp->lnum) | |
| 2791 { | |
| 2792 /* Make fold that includes lnum start at lnum. */ | |
| 2793 foldMarkAdjustRecurse(&fp2->fd_nested, | |
| 2794 (linenr_T)0, (long)(flp->lnum - fp2->fd_top - 1), | |
| 2795 (linenr_T)MAXLNUM, (long)(fp2->fd_top - flp->lnum)); | |
| 2796 fp2->fd_len -= flp->lnum - fp2->fd_top; | |
| 2797 fp2->fd_top = flp->lnum; | |
| 2798 fold_changed = TRUE; | |
| 2799 } | |
| 2800 | |
| 2801 if (lvl >= level) | |
| 2802 { | |
| 2803 /* merge new fold with existing fold that follows */ | |
| 2804 foldMerge(fp, gap, fp2); | |
| 2805 } | |
| 2806 break; | |
| 2807 } | |
| 2808 fold_changed = TRUE; | |
| 2809 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
| 2810 } | |
| 2811 | |
| 2812 /* Need to redraw the lines we inspected, which might be further down than | |
| 2813 * was asked for. */ | |
| 2814 if (bot < flp->lnum - 1) | |
| 2815 bot = flp->lnum - 1; | |
| 2816 | |
| 2817 return bot; | |
| 2818 } | |
| 2819 | |
| 2820 /* foldInsert() {{{2 */ | |
| 2821 /* | |
| 2822 * Insert a new fold in "gap" at position "i". | |
| 2823 * Returns OK for success, FAIL for failure. | |
| 2824 */ | |
| 2825 static int | |
|
7821
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2826 foldInsert(garray_T *gap, int i) |
| 7 | 2827 { |
| 2828 fold_T *fp; | |
| 2829 | |
| 2830 if (ga_grow(gap, 1) != OK) | |
| 2831 return FAIL; | |
| 2832 fp = (fold_T *)gap->ga_data + i; | |
| 2833 if (i < gap->ga_len) | |
| 2834 mch_memmove(fp + 1, fp, sizeof(fold_T) * (gap->ga_len - i)); | |
| 2835 ++gap->ga_len; | |
| 2836 ga_init2(&fp->fd_nested, (int)sizeof(fold_T), 10); | |
| 2837 return OK; | |
| 2838 } | |
| 2839 | |
| 2840 /* foldSplit() {{{2 */ | |
| 2841 /* | |
| 2842 * Split the "i"th fold in "gap", which starts before "top" and ends below | |
| 2843 * "bot" in two pieces, one ending above "top" and the other starting below | |
| 2844 * "bot". | |
| 2845 * The caller must first have taken care of any nested folds from "top" to | |
| 2846 * "bot"! | |
| 2847 */ | |
| 2848 static void | |
|
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diff
changeset
|
2849 foldSplit( |
|
81794242a275
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diff
changeset
|
2850 garray_T *gap, |
|
81794242a275
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diff
changeset
|
2851 int i, |
|
81794242a275
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diff
changeset
|
2852 linenr_T top, |
|
81794242a275
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diff
changeset
|
2853 linenr_T bot) |
| 7 | 2854 { |
| 2855 fold_T *fp; | |
| 2856 fold_T *fp2; | |
| 2857 garray_T *gap1; | |
| 2858 garray_T *gap2; | |
| 2859 int idx; | |
| 2860 int len; | |
| 2861 | |
| 2862 /* The fold continues below bot, need to split it. */ | |
| 2863 if (foldInsert(gap, i + 1) == FAIL) | |
| 2864 return; | |
| 2865 fp = (fold_T *)gap->ga_data + i; | |
| 2866 fp[1].fd_top = bot + 1; | |
| 2867 fp[1].fd_len = fp->fd_len - (fp[1].fd_top - fp->fd_top); | |
| 2868 fp[1].fd_flags = fp->fd_flags; | |
| 1985 | 2869 fp[1].fd_small = MAYBE; |
| 2870 fp->fd_small = MAYBE; | |
| 7 | 2871 |
| 2872 /* Move nested folds below bot to new fold. There can't be | |
| 2873 * any between top and bot, they have been removed by the caller. */ | |
| 2874 gap1 = &fp->fd_nested; | |
| 2875 gap2 = &fp[1].fd_nested; | |
| 2876 (void)(foldFind(gap1, bot + 1 - fp->fd_top, &fp2)); | |
| 2877 len = (int)((fold_T *)gap1->ga_data + gap1->ga_len - fp2); | |
| 2878 if (len > 0 && ga_grow(gap2, len) == OK) | |
| 2879 { | |
| 2880 for (idx = 0; idx < len; ++idx) | |
| 2881 { | |
| 2882 ((fold_T *)gap2->ga_data)[idx] = fp2[idx]; | |
| 2883 ((fold_T *)gap2->ga_data)[idx].fd_top | |
| 2884 -= fp[1].fd_top - fp->fd_top; | |
| 2885 } | |
| 2886 gap2->ga_len = len; | |
| 2887 gap1->ga_len -= len; | |
| 2888 } | |
| 2889 fp->fd_len = top - fp->fd_top; | |
| 2890 fold_changed = TRUE; | |
| 2891 } | |
| 2892 | |
| 2893 /* foldRemove() {{{2 */ | |
| 2894 /* | |
| 2895 * Remove folds within the range "top" to and including "bot". | |
| 2896 * Check for these situations: | |
| 2897 * 1 2 3 | |
| 2898 * 1 2 3 | |
| 2899 * top 2 3 4 5 | |
| 2900 * 2 3 4 5 | |
| 2901 * bot 2 3 4 5 | |
| 2902 * 3 5 6 | |
| 2903 * 3 5 6 | |
| 2904 * | |
| 2905 * 1: not changed | |
| 1224 | 2906 * 2: truncate to stop above "top" |
| 7 | 2907 * 3: split in two parts, one stops above "top", other starts below "bot". |
| 2908 * 4: deleted | |
| 2909 * 5: made to start below "bot". | |
| 2910 * 6: not changed | |
| 2911 */ | |
| 2912 static void | |
|
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2913 foldRemove(garray_T *gap, linenr_T top, linenr_T bot) |
| 7 | 2914 { |
| 2915 fold_T *fp = NULL; | |
| 2916 | |
| 2917 if (bot < top) | |
| 2918 return; /* nothing to do */ | |
| 2919 | |
| 2920 for (;;) | |
| 2921 { | |
| 2922 /* Find fold that includes top or a following one. */ | |
| 2923 if (foldFind(gap, top, &fp) && fp->fd_top < top) | |
| 2924 { | |
| 2925 /* 2: or 3: need to delete nested folds */ | |
| 2926 foldRemove(&fp->fd_nested, top - fp->fd_top, bot - fp->fd_top); | |
|
11396
e9924d19ee37
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Christian Brabandt <cb@256bit.org>
parents:
11392
diff
changeset
|
2927 if (fp->fd_top + fp->fd_len - 1 > bot) |
| 7 | 2928 { |
| 2929 /* 3: need to split it. */ | |
| 2930 foldSplit(gap, (int)(fp - (fold_T *)gap->ga_data), top, bot); | |
| 2931 } | |
| 2932 else | |
| 2933 { | |
| 2934 /* 2: truncate fold at "top". */ | |
| 2935 fp->fd_len = top - fp->fd_top; | |
| 2936 } | |
| 2937 fold_changed = TRUE; | |
| 2938 continue; | |
| 2939 } | |
| 2940 if (fp >= (fold_T *)(gap->ga_data) + gap->ga_len | |
| 2941 || fp->fd_top > bot) | |
| 2942 { | |
| 2943 /* 6: Found a fold below bot, can stop looking. */ | |
| 2944 break; | |
| 2945 } | |
| 2946 if (fp->fd_top >= top) | |
| 2947 { | |
| 2948 /* Found an entry below top. */ | |
| 2949 fold_changed = TRUE; | |
| 36 | 2950 if (fp->fd_top + fp->fd_len - 1 > bot) |
| 7 | 2951 { |
| 2952 /* 5: Make fold that includes bot start below bot. */ | |
| 2953 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2954 (linenr_T)0, (long)(bot - fp->fd_top), | |
| 2955 (linenr_T)MAXLNUM, (long)(fp->fd_top - bot - 1)); | |
| 2956 fp->fd_len -= bot - fp->fd_top + 1; | |
| 2957 fp->fd_top = bot + 1; | |
| 2958 break; | |
| 2959 } | |
| 2960 | |
| 2961 /* 4: Delete completely contained fold. */ | |
| 2962 deleteFoldEntry(gap, (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
| 2963 } | |
| 2964 } | |
| 2965 } | |
| 2966 | |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2967 /* foldReverseOrder() {{{2 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2968 static void |
|
11396
e9924d19ee37
patch 8.0.0583: fold test hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11392
diff
changeset
|
2969 foldReverseOrder(garray_T *gap, linenr_T start_arg, linenr_T end_arg) |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2970 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2971 fold_T *left, *right; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2972 fold_T tmp; |
|
11396
e9924d19ee37
patch 8.0.0583: fold test hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11392
diff
changeset
|
2973 linenr_T start = start_arg; |
|
e9924d19ee37
patch 8.0.0583: fold test hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11392
diff
changeset
|
2974 linenr_T end = end_arg; |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2975 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2976 for (; start < end; start++, end--) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2977 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2978 left = (fold_T *)gap->ga_data + start; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2979 right = (fold_T *)gap->ga_data + end; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2980 tmp = *left; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2981 *left = *right; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2982 *right = tmp; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2983 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2984 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2985 |
|
11148
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
2986 /* foldMoveRange() {{{2 */ |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2987 /* |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2988 * Move folds within the inclusive range "line1" to "line2" to after "dest" |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2989 * requires "line1" <= "line2" <= "dest" |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2990 * |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2991 * There are the following situations for the first fold at or below line1 - 1. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2992 * 1 2 3 4 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2993 * 1 2 3 4 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2994 * line1 2 3 4 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2995 * 2 3 4 5 6 7 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2996 * line2 3 4 5 6 7 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2997 * 3 4 6 7 8 9 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2998 * dest 4 7 8 9 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2999 * 4 7 8 10 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3000 * 4 7 8 10 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3001 * |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3002 * In the following descriptions, "moved" means moving in the buffer, *and* in |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3003 * the fold array. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3004 * Meanwhile, "shifted" just means moving in the buffer. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3005 * 1. not changed |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3006 * 2. truncated above line1 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3007 * 3. length reduced by line2 - line1, folds starting between the end of 3 and |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3008 * dest are truncated and shifted up |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3009 * 4. internal folds moved (from [line1, line2] to dest) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3010 * 5. moved to dest. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3011 * 6. truncated below line2 and moved. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3012 * 7. length reduced by line2 - dest, folds starting between line2 and dest are |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3013 * removed, top is moved down by move_len. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3014 * 8. truncated below dest and shifted up. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3015 * 9. shifted up |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3016 * 10. not changed |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3017 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3018 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3019 static void |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3020 truncate_fold(fold_T *fp, linenr_T end) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3021 { |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3022 end += 1; |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3023 foldRemove(&fp->fd_nested, end - fp->fd_top, MAXLNUM); |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3024 fp->fd_len = end - fp->fd_top; |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3025 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3026 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3027 #define fold_end(fp) ((fp)->fd_top + (fp)->fd_len - 1) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3028 #define valid_fold(fp, gap) ((fp) < ((fold_T *)(gap)->ga_data + (gap)->ga_len)) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3029 #define fold_index(fp, gap) ((size_t)(fp - ((fold_T *)(gap)->ga_data))) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3030 |
|
11148
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3031 void |
|
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3032 foldMoveRange(garray_T *gap, linenr_T line1, linenr_T line2, linenr_T dest) |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3033 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3034 fold_T *fp; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3035 linenr_T range_len = line2 - line1 + 1; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3036 linenr_T move_len = dest - line2; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3037 int at_start = foldFind(gap, line1 - 1, &fp); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3038 size_t move_start = 0, move_end = 0, dest_index = 0; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3039 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3040 if (at_start) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3041 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3042 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
|
3043 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3044 /* Case 4 |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3045 * don't have to change this fold, but have to move nested folds. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3046 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3047 foldMoveRange(&fp->fd_nested, line1 - fp->fd_top, line2 - |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3048 fp->fd_top, dest - fp->fd_top); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3049 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3050 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3051 else if (fold_end(fp) > line2) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3052 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3053 /* Case 3 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3054 * Remove nested folds between line1 and line2 & reduce the |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3055 * length of fold by "range_len". |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3056 * Folds after this one must be dealt with. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3057 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3058 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, line2 - |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3059 fp->fd_top, MAXLNUM, -range_len); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3060 fp->fd_len -= range_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3061 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3062 else |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3063 /* Case 2 truncate fold, folds after this one must be dealt with. */ |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3064 truncate_fold(fp, line1 - 1); |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3065 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3066 /* Look at the next fold, and treat that one as if it were the first |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3067 * 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
|
3068 fp = fp + 1; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3069 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3070 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3071 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
|
3072 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3073 /* Case 10 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3074 * No folds after "line1" and before "dest" |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3075 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3076 return; |
|
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 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
|
3079 { |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3080 for (; valid_fold(fp, gap) && fold_end(fp) <= dest; fp++) |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3081 /* 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
|
3082 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
|
3083 |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3084 if (valid_fold(fp, gap) && fp->fd_top <= dest) |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3085 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3086 /* 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
|
3087 truncate_fold(fp, dest); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3088 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
|
3089 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3090 return; |
|
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 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
|
3093 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3094 /* 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
|
3095 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
|
3096 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
|
3097 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
|
3098 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
|
3099 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3100 } |
|
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 5 or 6 |
|
11148
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3103 * changes rely on whether there are folds between the end of |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3104 * this fold and "dest". |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3105 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3106 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
|
3107 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3108 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
|
3109 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3110 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
|
3111 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3112 /* 1. 2. or 3. */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3113 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
|
3114 /* 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
|
3115 truncate_fold(fp, line2); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3116 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3117 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
|
3118 continue; |
|
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 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3121 /* 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
|
3122 if (move_end == 0) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3123 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
|
3124 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3125 if (fold_end(fp) > dest) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3126 truncate_fold(fp, dest); |
|
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 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
|
3129 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3130 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3131 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
|
3132 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3133 /* |
|
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3134 * All folds are now correct, but not necessarily in the correct order. We |
|
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3135 * must swap folds in the range [move_end, dest_index) with those in the |
|
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3136 * range [move_start, move_end). |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3137 */ |
|
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3138 if (move_end == 0) |
|
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3139 /* There are no folds after those moved, hence no folds have been moved |
|
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3140 * out of order. */ |
|
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3141 return; |
|
11165
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3142 foldReverseOrder(gap, (linenr_T)move_start, (linenr_T)dest_index - 1); |
|
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3143 foldReverseOrder(gap, (linenr_T)move_start, |
|
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3144 (linenr_T)(move_start + dest_index - move_end - 1)); |
|
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3145 foldReverseOrder(gap, (linenr_T)(move_start + dest_index - move_end), |
|
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3146 (linenr_T)(dest_index - 1)); |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3147 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3148 #undef fold_end |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3149 #undef valid_fold |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3150 #undef fold_index |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3151 |
| 7 | 3152 /* foldMerge() {{{2 */ |
| 3153 /* | |
| 1224 | 3154 * Merge two adjacent folds (and the nested ones in them). |
| 3155 * This only works correctly when the folds are really adjacent! Thus "fp1" | |
| 7 | 3156 * must end just above "fp2". |
| 3157 * The resulting fold is "fp1", nested folds are moved from "fp2" to "fp1". | |
| 3158 * Fold entry "fp2" in "gap" is deleted. | |
| 3159 */ | |
| 3160 static void | |
|
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3161 foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2) |
| 7 | 3162 { |
| 3163 fold_T *fp3; | |
| 3164 fold_T *fp4; | |
| 3165 int idx; | |
| 3166 garray_T *gap1 = &fp1->fd_nested; | |
| 3167 garray_T *gap2 = &fp2->fd_nested; | |
| 3168 | |
| 3169 /* If the last nested fold in fp1 touches the first nested fold in fp2, | |
| 3170 * merge them recursively. */ | |
| 3171 if (foldFind(gap1, fp1->fd_len - 1L, &fp3) && foldFind(gap2, 0L, &fp4)) | |
| 3172 foldMerge(fp3, gap2, fp4); | |
| 3173 | |
| 3174 /* Move nested folds in fp2 to the end of fp1. */ | |
| 3175 if (gap2->ga_len > 0 && ga_grow(gap1, gap2->ga_len) == OK) | |
| 3176 { | |
| 3177 for (idx = 0; idx < gap2->ga_len; ++idx) | |
| 3178 { | |
| 3179 ((fold_T *)gap1->ga_data)[gap1->ga_len] | |
| 3180 = ((fold_T *)gap2->ga_data)[idx]; | |
| 3181 ((fold_T *)gap1->ga_data)[gap1->ga_len].fd_top += fp1->fd_len; | |
| 3182 ++gap1->ga_len; | |
| 3183 } | |
| 3184 gap2->ga_len = 0; | |
| 3185 } | |
| 3186 | |
| 3187 fp1->fd_len += fp2->fd_len; | |
| 3188 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
| 3189 fold_changed = TRUE; | |
| 3190 } | |
| 3191 | |
| 3192 /* foldlevelIndent() {{{2 */ | |
| 3193 /* | |
| 3194 * Low level function to get the foldlevel for the "indent" method. | |
| 3195 * Doesn't use any caching. | |
| 3196 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
| 3197 */ | |
| 3198 static void | |
|
7821
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3199 foldlevelIndent(fline_T *flp) |
| 7 | 3200 { |
| 3201 char_u *s; | |
| 3202 buf_T *buf; | |
| 3203 linenr_T lnum = flp->lnum + flp->off; | |
| 3204 | |
| 3205 buf = flp->wp->w_buffer; | |
| 3206 s = skipwhite(ml_get_buf(buf, lnum, FALSE)); | |
| 3207 | |
| 3208 /* empty line or lines starting with a character in 'foldignore': level | |
| 3209 * depends on surrounding lines */ | |
| 3210 if (*s == NUL || vim_strchr(flp->wp->w_p_fdi, *s) != NULL) | |
| 3211 { | |
| 3212 /* first and last line can't be undefined, use level 0 */ | |
| 3213 if (lnum == 1 || lnum == buf->b_ml.ml_line_count) | |
| 3214 flp->lvl = 0; | |
| 3215 else | |
| 3216 flp->lvl = -1; | |
| 3217 } | |
| 3218 else | |
|
15031
03831e5ea0de
patch 8.1.0527: using 'shiftwidth' from wrong buffer for folding
Bram Moolenaar <Bram@vim.org>
parents:
12477
diff
changeset
|
3219 flp->lvl = get_indent_buf(buf, lnum) / get_sw_value(buf); |
| 7 | 3220 if (flp->lvl > flp->wp->w_p_fdn) |
| 1028 | 3221 { |
| 7 | 3222 flp->lvl = flp->wp->w_p_fdn; |
| 1028 | 3223 if (flp->lvl < 0) |
| 3224 flp->lvl = 0; | |
| 3225 } | |
| 7 | 3226 } |
| 3227 | |
| 3228 /* foldlevelDiff() {{{2 */ | |
| 3229 #ifdef FEAT_DIFF | |
| 3230 /* | |
| 3231 * Low level function to get the foldlevel for the "diff" method. | |
| 3232 * Doesn't use any caching. | |
| 3233 */ | |
| 3234 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3235 foldlevelDiff(fline_T *flp) |
| 7 | 3236 { |
| 3237 if (diff_infold(flp->wp, flp->lnum + flp->off)) | |
| 3238 flp->lvl = 1; | |
| 3239 else | |
| 3240 flp->lvl = 0; | |
| 3241 } | |
| 3242 #endif | |
| 3243 | |
| 3244 /* foldlevelExpr() {{{2 */ | |
| 3245 /* | |
| 3246 * Low level function to get the foldlevel for the "expr" method. | |
| 3247 * Doesn't use any caching. | |
| 3248 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
| 3249 */ | |
| 3250 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3251 foldlevelExpr(fline_T *flp) |
| 7 | 3252 { |
| 3253 #ifndef FEAT_EVAL | |
| 3254 flp->start = FALSE; | |
| 3255 flp->lvl = 0; | |
| 3256 #else | |
| 3257 win_T *win; | |
| 3258 int n; | |
| 3259 int c; | |
| 3260 linenr_T lnum = flp->lnum + flp->off; | |
| 3261 int save_keytyped; | |
| 3262 | |
| 3263 win = curwin; | |
| 3264 curwin = flp->wp; | |
| 3265 curbuf = flp->wp->w_buffer; | |
| 3266 set_vim_var_nr(VV_LNUM, lnum); | |
| 3267 | |
| 3268 flp->start = 0; | |
| 3269 flp->had_end = flp->end; | |
| 3270 flp->end = MAX_LEVEL + 1; | |
| 3271 if (lnum <= 1) | |
| 3272 flp->lvl = 0; | |
| 3273 | |
| 3274 /* KeyTyped may be reset to 0 when calling a function which invokes | |
| 3275 * do_cmdline(). To make 'foldopen' work correctly restore KeyTyped. */ | |
| 3276 save_keytyped = KeyTyped; | |
|
9389
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commit https://github.com/vim/vim/commit/22fcfad29276bd5f317faf516637dcd491b96a12
Christian Brabandt <cb@256bit.org>
parents:
9252
diff
changeset
|
3277 n = (int)eval_foldexpr(flp->wp->w_p_fde, &c); |
| 7 | 3278 KeyTyped = save_keytyped; |
| 3279 | |
| 3280 switch (c) | |
| 3281 { | |
| 3282 /* "a1", "a2", .. : add to the fold level */ | |
| 3283 case 'a': if (flp->lvl >= 0) | |
| 3284 { | |
| 3285 flp->lvl += n; | |
| 3286 flp->lvl_next = flp->lvl; | |
| 3287 } | |
| 3288 flp->start = n; | |
| 3289 break; | |
| 3290 | |
| 3291 /* "s1", "s2", .. : subtract from the fold level */ | |
| 3292 case 's': if (flp->lvl >= 0) | |
| 3293 { | |
| 3294 if (n > flp->lvl) | |
| 3295 flp->lvl_next = 0; | |
| 3296 else | |
| 3297 flp->lvl_next = flp->lvl - n; | |
| 3298 flp->end = flp->lvl_next + 1; | |
| 3299 } | |
| 3300 break; | |
| 3301 | |
| 3302 /* ">1", ">2", .. : start a fold with a certain level */ | |
| 3303 case '>': flp->lvl = n; | |
| 3304 flp->lvl_next = n; | |
| 3305 flp->start = 1; | |
| 3306 break; | |
| 3307 | |
| 3308 /* "<1", "<2", .. : end a fold with a certain level */ | |
| 3309 case '<': flp->lvl_next = n - 1; | |
| 3310 flp->end = n; | |
| 3311 break; | |
| 3312 | |
| 3313 /* "=": No change in level */ | |
| 3314 case '=': flp->lvl_next = flp->lvl; | |
| 3315 break; | |
| 3316 | |
| 3317 /* "-1", "0", "1", ..: set fold level */ | |
| 3318 default: if (n < 0) | |
| 3319 /* Use the current level for the next line, so that "a1" | |
| 3320 * will work there. */ | |
| 3321 flp->lvl_next = flp->lvl; | |
| 3322 else | |
| 3323 flp->lvl_next = n; | |
| 3324 flp->lvl = n; | |
| 3325 break; | |
| 3326 } | |
| 3327 | |
| 3328 /* If the level is unknown for the first or the last line in the file, use | |
| 3329 * level 0. */ | |
| 3330 if (flp->lvl < 0) | |
| 3331 { | |
| 3332 if (lnum <= 1) | |
| 3333 { | |
| 3334 flp->lvl = 0; | |
| 3335 flp->lvl_next = 0; | |
| 3336 } | |
| 3337 if (lnum == curbuf->b_ml.ml_line_count) | |
| 3338 flp->lvl_next = 0; | |
| 3339 } | |
| 3340 | |
| 3341 curwin = win; | |
| 3342 curbuf = curwin->w_buffer; | |
| 3343 #endif | |
| 3344 } | |
| 3345 | |
| 3346 /* parseMarker() {{{2 */ | |
| 3347 /* | |
| 3348 * Parse 'foldmarker' and set "foldendmarker", "foldstartmarkerlen" and | |
| 3349 * "foldendmarkerlen". | |
| 3350 * Relies on the option value to have been checked for correctness already. | |
| 3351 */ | |
| 3352 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3353 parseMarker(win_T *wp) |
| 7 | 3354 { |
| 3355 foldendmarker = vim_strchr(wp->w_p_fmr, ','); | |
| 3356 foldstartmarkerlen = (int)(foldendmarker++ - wp->w_p_fmr); | |
| 3357 foldendmarkerlen = (int)STRLEN(foldendmarker); | |
| 3358 } | |
| 3359 | |
| 3360 /* foldlevelMarker() {{{2 */ | |
| 3361 /* | |
| 3362 * Low level function to get the foldlevel for the "marker" method. | |
| 3363 * "foldendmarker", "foldstartmarkerlen" and "foldendmarkerlen" must have been | |
| 3364 * set before calling this. | |
| 3365 * Requires that flp->lvl is set to the fold level of the previous line! | |
| 3366 * Careful: This means you can't call this function twice on the same line. | |
| 3367 * Doesn't use any caching. | |
| 3368 * Sets flp->start when a start marker was found. | |
| 3369 */ | |
| 3370 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3371 foldlevelMarker(fline_T *flp) |
| 7 | 3372 { |
| 3373 char_u *startmarker; | |
| 3374 int cstart; | |
| 3375 int cend; | |
| 3376 int start_lvl = flp->lvl; | |
| 3377 char_u *s; | |
| 3378 int n; | |
| 3379 | |
| 3380 /* cache a few values for speed */ | |
| 3381 startmarker = flp->wp->w_p_fmr; | |
| 3382 cstart = *startmarker; | |
| 3383 ++startmarker; | |
| 3384 cend = *foldendmarker; | |
| 3385 | |
| 3386 /* Default: no start found, next level is same as current level */ | |
| 3387 flp->start = 0; | |
| 3388 flp->lvl_next = flp->lvl; | |
| 3389 | |
| 3390 s = ml_get_buf(flp->wp->w_buffer, flp->lnum + flp->off, FALSE); | |
| 3391 while (*s) | |
| 3392 { | |
| 3393 if (*s == cstart | |
| 3394 && STRNCMP(s + 1, startmarker, foldstartmarkerlen - 1) == 0) | |
| 3395 { | |
| 3396 /* found startmarker: set flp->lvl */ | |
| 3397 s += foldstartmarkerlen; | |
| 3398 if (VIM_ISDIGIT(*s)) | |
| 3399 { | |
| 3400 n = atoi((char *)s); | |
| 3401 if (n > 0) | |
| 3402 { | |
| 3403 flp->lvl = n; | |
| 3404 flp->lvl_next = n; | |
| 3405 if (n <= start_lvl) | |
| 3406 flp->start = 1; | |
| 3407 else | |
| 3408 flp->start = n - start_lvl; | |
| 3409 } | |
| 3410 } | |
| 3411 else | |
| 3412 { | |
| 3413 ++flp->lvl; | |
| 3414 ++flp->lvl_next; | |
| 3415 ++flp->start; | |
| 3416 } | |
| 3417 } | |
| 3418 else if (*s == cend | |
| 3419 && STRNCMP(s + 1, foldendmarker + 1, foldendmarkerlen - 1) == 0) | |
| 3420 { | |
| 3421 /* found endmarker: set flp->lvl_next */ | |
| 3422 s += foldendmarkerlen; | |
| 3423 if (VIM_ISDIGIT(*s)) | |
| 3424 { | |
| 3425 n = atoi((char *)s); | |
| 3426 if (n > 0) | |
| 3427 { | |
| 3428 flp->lvl = n; | |
| 3429 flp->lvl_next = n - 1; | |
| 3430 /* never start a fold with an end marker */ | |
|
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Bram Moolenaar <bram@zimbu.org>
parents:
1985
diff
changeset
|
3431 if (flp->lvl_next > start_lvl) |
|
79b8d69a4588
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parents:
1985
diff
changeset
|
3432 flp->lvl_next = start_lvl; |
| 7 | 3433 } |
| 3434 } | |
| 3435 else | |
| 3436 --flp->lvl_next; | |
| 3437 } | |
| 3438 else | |
|
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parents:
11121
diff
changeset
|
3439 MB_PTR_ADV(s); |
| 7 | 3440 } |
| 3441 | |
| 3442 /* The level can't go negative, must be missing a start marker. */ | |
| 3443 if (flp->lvl_next < 0) | |
| 3444 flp->lvl_next = 0; | |
| 3445 } | |
| 3446 | |
| 3447 /* foldlevelSyntax() {{{2 */ | |
| 3448 /* | |
| 3449 * Low level function to get the foldlevel for the "syntax" method. | |
| 3450 * Doesn't use any caching. | |
| 3451 */ | |
| 3452 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3453 foldlevelSyntax(fline_T *flp) |
| 7 | 3454 { |
| 3455 #ifndef FEAT_SYN_HL | |
| 3456 flp->start = 0; | |
| 3457 flp->lvl = 0; | |
| 3458 #else | |
| 3459 linenr_T lnum = flp->lnum + flp->off; | |
| 3460 int n; | |
| 3461 | |
| 3462 /* Use the maximum fold level at the start of this line and the next. */ | |
| 3463 flp->lvl = syn_get_foldlevel(flp->wp, lnum); | |
| 3464 flp->start = 0; | |
| 3465 if (lnum < flp->wp->w_buffer->b_ml.ml_line_count) | |
| 3466 { | |
| 3467 n = syn_get_foldlevel(flp->wp, lnum + 1); | |
| 3468 if (n > flp->lvl) | |
| 3469 { | |
| 3470 flp->start = n - flp->lvl; /* fold(s) start here */ | |
| 3471 flp->lvl = n; | |
| 3472 } | |
| 3473 } | |
| 3474 #endif | |
| 3475 } | |
| 3476 | |
| 3477 /* functions for storing the fold state in a View {{{1 */ | |
| 3478 /* put_folds() {{{2 */ | |
| 3479 #if defined(FEAT_SESSION) || defined(PROTO) | |
|
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parents:
7009
diff
changeset
|
3480 static int put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off); |
|
a1e71a01dbd6
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Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3481 static int put_foldopen_recurse(FILE *fd, win_T *wp, garray_T *gap, linenr_T off); |
|
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parents:
7009
diff
changeset
|
3482 static int put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off); |
| 7 | 3483 |
| 3484 /* | |
| 3485 * Write commands to "fd" to restore the manual folds in window "wp". | |
| 3486 * Return FAIL if writing fails. | |
| 3487 */ | |
| 3488 int | |
|
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parents:
7807
diff
changeset
|
3489 put_folds(FILE *fd, win_T *wp) |
| 7 | 3490 { |
| 3491 if (foldmethodIsManual(wp)) | |
| 3492 { | |
| 3493 if (put_line(fd, "silent! normal! zE") == FAIL | |
| 3494 || put_folds_recurse(fd, &wp->w_folds, (linenr_T)0) == FAIL) | |
| 3495 return FAIL; | |
| 3496 } | |
| 3497 | |
| 3498 /* If some folds are manually opened/closed, need to restore that. */ | |
| 3499 if (wp->w_fold_manual) | |
| 3392 | 3500 return put_foldopen_recurse(fd, wp, &wp->w_folds, (linenr_T)0); |
| 7 | 3501 |
| 3502 return OK; | |
| 3503 } | |
| 3504 | |
| 3505 /* put_folds_recurse() {{{2 */ | |
| 3506 /* | |
| 3507 * Write commands to "fd" to recreate manually created folds. | |
| 3508 * Returns FAIL when writing failed. | |
| 3509 */ | |
| 3510 static int | |
|
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parents:
7807
diff
changeset
|
3511 put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off) |
| 7 | 3512 { |
| 3513 int i; | |
| 3514 fold_T *fp; | |
| 3515 | |
| 3516 fp = (fold_T *)gap->ga_data; | |
| 3517 for (i = 0; i < gap->ga_len; i++) | |
| 3518 { | |
| 3519 /* Do nested folds first, they will be created closed. */ | |
| 3520 if (put_folds_recurse(fd, &fp->fd_nested, off + fp->fd_top) == FAIL) | |
| 3521 return FAIL; | |
| 3522 if (fprintf(fd, "%ld,%ldfold", fp->fd_top + off, | |
| 3523 fp->fd_top + off + fp->fd_len - 1) < 0 | |
| 3524 || put_eol(fd) == FAIL) | |
| 3525 return FAIL; | |
| 3526 ++fp; | |
| 3527 } | |
| 3528 return OK; | |
| 3529 } | |
| 3530 | |
| 3531 /* put_foldopen_recurse() {{{2 */ | |
| 3532 /* | |
| 3533 * Write commands to "fd" to open and close manually opened/closed folds. | |
| 3534 * Returns FAIL when writing failed. | |
| 3535 */ | |
| 3536 static int | |
|
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parents:
7807
diff
changeset
|
3537 put_foldopen_recurse( |
|
81794242a275
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parents:
7807
diff
changeset
|
3538 FILE *fd, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3539 win_T *wp, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3540 garray_T *gap, |
|
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3541 linenr_T off) |
| 7 | 3542 { |
| 3543 int i; | |
| 3392 | 3544 int level; |
| 7 | 3545 fold_T *fp; |
| 3546 | |
| 3547 fp = (fold_T *)gap->ga_data; | |
| 3548 for (i = 0; i < gap->ga_len; i++) | |
| 3549 { | |
| 3550 if (fp->fd_flags != FD_LEVEL) | |
| 3551 { | |
| 3552 if (fp->fd_nested.ga_len > 0) | |
| 3553 { | |
| 3392 | 3554 /* open nested folds while this fold is open */ |
| 7 | 3555 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 |
| 3556 || put_eol(fd) == FAIL | |
| 3766 | 3557 || put_line(fd, "normal! zo") == FAIL) |
| 7 | 3558 return FAIL; |
| 3392 | 3559 if (put_foldopen_recurse(fd, wp, &fp->fd_nested, |
| 3560 off + fp->fd_top) | |
| 7 | 3561 == FAIL) |
| 3562 return FAIL; | |
| 3392 | 3563 /* close the parent when needed */ |
| 3564 if (fp->fd_flags == FD_CLOSED) | |
| 3565 { | |
| 3566 if (put_fold_open_close(fd, fp, off) == FAIL) | |
| 3567 return FAIL; | |
| 3568 } | |
| 3569 } | |
| 3570 else | |
| 3571 { | |
| 3572 /* Open or close the leaf according to the window foldlevel. | |
| 3573 * Do not close a leaf that is already closed, as it will close | |
| 3574 * the parent. */ | |
| 3575 level = foldLevelWin(wp, off + fp->fd_top); | |
| 3576 if ((fp->fd_flags == FD_CLOSED && wp->w_p_fdl >= level) | |
| 3577 || (fp->fd_flags != FD_CLOSED && wp->w_p_fdl < level)) | |
| 3578 if (put_fold_open_close(fd, fp, off) == FAIL) | |
| 3579 return FAIL; | |
| 7 | 3580 } |
| 3581 } | |
| 3582 ++fp; | |
| 3583 } | |
| 3584 | |
| 3585 return OK; | |
| 3586 } | |
| 3392 | 3587 |
| 3588 /* put_fold_open_close() {{{2 */ | |
| 3589 /* | |
| 3590 * Write the open or close command to "fd". | |
| 3591 * Returns FAIL when writing failed. | |
| 3592 */ | |
| 3593 static int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3594 put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off) |
| 3392 | 3595 { |
| 3596 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 | |
| 3597 || put_eol(fd) == FAIL | |
| 3766 | 3598 || fprintf(fd, "normal! z%c", |
| 3392 | 3599 fp->fd_flags == FD_CLOSED ? 'c' : 'o') < 0 |
| 3600 || put_eol(fd) == FAIL) | |
| 3601 return FAIL; | |
| 3602 | |
| 3603 return OK; | |
| 3604 } | |
| 7 | 3605 #endif /* FEAT_SESSION */ |
| 3606 | |
| 3607 /* }}}1 */ | |
| 3608 #endif /* defined(FEAT_FOLDING) || defined(PROTO) */ |