Mercurial > vim
annotate src/fold.c @ 20321:7ea995290692
Added tag v8.2.0715 for changeset e501e32a892f57884441097196a4ea74e263ddf5
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 07 May 2020 22:30:05 +0200 |
| parents | 8f05b3cf8557 |
| children | 3af71cbcfdbe |
| rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * vim600:fdm=marker fdl=1 fdc=3: |
| 3 * | |
| 4 * VIM - Vi IMproved by Bram Moolenaar | |
| 5 * | |
| 6 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 7 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 8 * See README.txt for an overview of the Vim source code. | |
| 9 */ | |
| 10 | |
| 11 /* | |
| 12 * fold.c: code for folding | |
| 13 */ | |
| 14 | |
| 15 #include "vim.h" | |
| 16 | |
| 17 #if defined(FEAT_FOLDING) || defined(PROTO) | |
| 18 | |
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19 // local declarations. {{{1 |
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20 // typedef fold_T {{{2 |
| 7 | 21 /* |
| 22 * The toplevel folds for each window are stored in the w_folds growarray. | |
| 23 * Each toplevel fold can contain an array of second level folds in the | |
| 24 * fd_nested growarray. | |
| 25 * The info stored in both growarrays is the same: An array of fold_T. | |
| 26 */ | |
| 27 typedef struct | |
| 28 { | |
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29 linenr_T fd_top; // first line of fold; for nested fold |
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30 // relative to parent |
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31 linenr_T fd_len; // number of lines in the fold |
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32 garray_T fd_nested; // array of nested folds |
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33 char fd_flags; // see below |
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34 char fd_small; // TRUE, FALSE or MAYBE: fold smaller than |
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35 // 'foldminlines'; MAYBE applies to nested |
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36 // folds too |
| 7 | 37 } fold_T; |
| 38 | |
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39 #define FD_OPEN 0 // fold is open (nested ones can be closed) |
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40 #define FD_CLOSED 1 // fold is closed |
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41 #define FD_LEVEL 2 // depends on 'foldlevel' (nested folds too) |
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42 |
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43 #define MAX_LEVEL 20 // maximum fold depth |
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44 |
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45 // static functions {{{2 |
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46 static void newFoldLevelWin(win_T *wp); |
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47 static int checkCloseRec(garray_T *gap, linenr_T lnum, int level); |
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48 static int foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp); |
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49 static int foldLevelWin(win_T *wp, linenr_T lnum); |
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50 static void checkupdate(win_T *wp); |
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51 static void setFoldRepeat(linenr_T lnum, long count, int do_open); |
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52 static linenr_T setManualFold(linenr_T lnum, int opening, int recurse, int *donep); |
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53 static linenr_T setManualFoldWin(win_T *wp, linenr_T lnum, int opening, int recurse, int *donep); |
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54 static void foldOpenNested(fold_T *fpr); |
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55 static void deleteFoldEntry(garray_T *gap, int idx, int recursive); |
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56 static void foldMarkAdjustRecurse(garray_T *gap, linenr_T line1, linenr_T line2, long amount, long amount_after); |
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57 static int getDeepestNestingRecurse(garray_T *gap); |
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58 static int check_closed(win_T *win, fold_T *fp, int *use_levelp, int level, int *maybe_smallp, linenr_T lnum_off); |
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59 static void checkSmall(win_T *wp, fold_T *fp, linenr_T lnum_off); |
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60 static void setSmallMaybe(garray_T *gap); |
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61 static void foldCreateMarkers(linenr_T start, linenr_T end); |
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62 static void foldAddMarker(linenr_T lnum, char_u *marker, int markerlen); |
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63 static void deleteFoldMarkers(fold_T *fp, int recursive, linenr_T lnum_off); |
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64 static void foldDelMarker(linenr_T lnum, char_u *marker, int markerlen); |
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65 static void foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot); |
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66 static void parseMarker(win_T *wp); |
| 7 | 67 |
| 68 static char *e_nofold = N_("E490: No fold found"); | |
| 69 | |
| 70 /* | |
| 71 * While updating the folds lines between invalid_top and invalid_bot have an | |
| 72 * undefined fold level. Only used for the window currently being updated. | |
| 73 */ | |
| 74 static linenr_T invalid_top = (linenr_T)0; | |
| 75 static linenr_T invalid_bot = (linenr_T)0; | |
| 76 | |
| 77 /* | |
| 78 * When using 'foldexpr' we sometimes get the level of the next line, which | |
| 79 * calls foldlevel() to get the level of the current line, which hasn't been | |
| 80 * stored yet. To get around this chicken-egg problem the level of the | |
| 81 * previous line is stored here when available. prev_lnum is zero when the | |
| 82 * level is not available. | |
| 83 */ | |
| 84 static linenr_T prev_lnum = 0; | |
| 85 static int prev_lnum_lvl = -1; | |
| 86 | |
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87 // Flags used for "done" argument of setManualFold. |
| 7 | 88 #define DONE_NOTHING 0 |
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89 #define DONE_ACTION 1 // did close or open a fold |
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90 #define DONE_FOLD 2 // did find a fold |
| 7 | 91 |
| 92 static int foldstartmarkerlen; | |
| 93 static char_u *foldendmarker; | |
| 94 static int foldendmarkerlen; | |
| 95 | |
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96 // Exported folding functions. {{{1 |
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97 // copyFoldingState() {{{2 |
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98 |
| 7 | 99 /* |
| 100 * Copy that folding state from window "wp_from" to window "wp_to". | |
| 101 */ | |
| 102 void | |
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103 copyFoldingState(win_T *wp_from, win_T *wp_to) |
| 7 | 104 { |
| 105 wp_to->w_fold_manual = wp_from->w_fold_manual; | |
| 106 wp_to->w_foldinvalid = wp_from->w_foldinvalid; | |
| 107 cloneFoldGrowArray(&wp_from->w_folds, &wp_to->w_folds); | |
| 108 } | |
| 109 | |
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110 // hasAnyFolding() {{{2 |
| 7 | 111 /* |
| 112 * Return TRUE if there may be folded lines in the current window. | |
| 113 */ | |
| 114 int | |
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115 hasAnyFolding(win_T *win) |
| 7 | 116 { |
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117 // very simple now, but can become more complex later |
| 7 | 118 return (win->w_p_fen |
| 119 && (!foldmethodIsManual(win) || win->w_folds.ga_len > 0)); | |
| 120 } | |
| 121 | |
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122 // hasFolding() {{{2 |
| 7 | 123 /* |
| 124 * Return TRUE if line "lnum" in the current window is part of a closed | |
| 125 * fold. | |
| 126 * When returning TRUE, *firstp and *lastp are set to the first and last | |
| 127 * lnum of the sequence of folded lines (skipped when NULL). | |
| 128 */ | |
| 129 int | |
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130 hasFolding(linenr_T lnum, linenr_T *firstp, linenr_T *lastp) |
| 7 | 131 { |
| 132 return hasFoldingWin(curwin, lnum, firstp, lastp, TRUE, NULL); | |
| 133 } | |
| 134 | |
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135 // hasFoldingWin() {{{2 |
| 7 | 136 int |
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137 hasFoldingWin( |
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138 win_T *win, |
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139 linenr_T lnum, |
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140 linenr_T *firstp, |
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141 linenr_T *lastp, |
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142 int cache, // when TRUE: use cached values of window |
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143 foldinfo_T *infop) // where to store fold info |
| 7 | 144 { |
| 145 int had_folded = FALSE; | |
| 146 linenr_T first = 0; | |
| 147 linenr_T last = 0; | |
| 148 linenr_T lnum_rel = lnum; | |
| 149 int x; | |
| 150 fold_T *fp; | |
| 151 int level = 0; | |
| 152 int use_level = FALSE; | |
| 153 int maybe_small = FALSE; | |
| 154 garray_T *gap; | |
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155 int low_level = 0; |
| 7 | 156 |
| 157 checkupdate(win); | |
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158 |
| 7 | 159 /* |
| 160 * Return quickly when there is no folding at all in this window. | |
| 161 */ | |
| 162 if (!hasAnyFolding(win)) | |
| 163 { | |
| 164 if (infop != NULL) | |
| 165 infop->fi_level = 0; | |
| 166 return FALSE; | |
| 167 } | |
| 168 | |
| 169 if (cache) | |
| 170 { | |
| 171 /* | |
| 172 * First look in cached info for displayed lines. This is probably | |
| 173 * the fastest, but it can only be used if the entry is still valid. | |
| 174 */ | |
| 175 x = find_wl_entry(win, lnum); | |
| 176 if (x >= 0) | |
| 177 { | |
| 178 first = win->w_lines[x].wl_lnum; | |
| 179 last = win->w_lines[x].wl_lastlnum; | |
| 180 had_folded = win->w_lines[x].wl_folded; | |
| 181 } | |
| 182 } | |
| 183 | |
| 184 if (first == 0) | |
| 185 { | |
| 186 /* | |
| 187 * Recursively search for a fold that contains "lnum". | |
| 188 */ | |
| 189 gap = &win->w_folds; | |
| 190 for (;;) | |
| 191 { | |
| 192 if (!foldFind(gap, lnum_rel, &fp)) | |
| 193 break; | |
| 194 | |
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195 // Remember lowest level of fold that starts in "lnum". |
| 7 | 196 if (lnum_rel == fp->fd_top && low_level == 0) |
| 197 low_level = level + 1; | |
| 198 | |
| 199 first += fp->fd_top; | |
| 200 last += fp->fd_top; | |
| 201 | |
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202 // is this fold closed? |
| 7 | 203 had_folded = check_closed(win, fp, &use_level, level, |
| 204 &maybe_small, lnum - lnum_rel); | |
| 205 if (had_folded) | |
| 206 { | |
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207 // Fold closed: Set last and quit loop. |
| 7 | 208 last += fp->fd_len - 1; |
| 209 break; | |
| 210 } | |
| 211 | |
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212 // Fold found, but it's open: Check nested folds. Line number is |
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213 // relative to containing fold. |
| 7 | 214 gap = &fp->fd_nested; |
| 215 lnum_rel -= fp->fd_top; | |
| 216 ++level; | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 if (!had_folded) | |
| 221 { | |
| 222 if (infop != NULL) | |
| 223 { | |
| 224 infop->fi_level = level; | |
| 225 infop->fi_lnum = lnum - lnum_rel; | |
| 226 infop->fi_low_level = low_level == 0 ? level : low_level; | |
| 227 } | |
| 228 return FALSE; | |
| 229 } | |
| 230 | |
| 6753 | 231 if (last > win->w_buffer->b_ml.ml_line_count) |
| 232 last = win->w_buffer->b_ml.ml_line_count; | |
| 7 | 233 if (lastp != NULL) |
| 234 *lastp = last; | |
| 235 if (firstp != NULL) | |
| 236 *firstp = first; | |
| 237 if (infop != NULL) | |
| 238 { | |
| 239 infop->fi_level = level + 1; | |
| 240 infop->fi_lnum = first; | |
| 241 infop->fi_low_level = low_level == 0 ? level + 1 : low_level; | |
| 242 } | |
| 243 return TRUE; | |
| 244 } | |
| 245 | |
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246 // foldLevel() {{{2 |
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247 #ifdef FEAT_EVAL |
| 7 | 248 /* |
| 249 * Return fold level at line number "lnum" in the current window. | |
| 250 */ | |
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251 static int |
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252 foldLevel(linenr_T lnum) |
| 7 | 253 { |
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254 // While updating the folds lines between invalid_top and invalid_bot have |
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255 // an undefined fold level. Otherwise update the folds first. |
| 7 | 256 if (invalid_top == (linenr_T)0) |
| 257 checkupdate(curwin); | |
| 258 else if (lnum == prev_lnum && prev_lnum_lvl >= 0) | |
| 259 return prev_lnum_lvl; | |
| 260 else if (lnum >= invalid_top && lnum <= invalid_bot) | |
| 261 return -1; | |
| 262 | |
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263 // Return quickly when there is no folding at all in this window. |
| 7 | 264 if (!hasAnyFolding(curwin)) |
| 265 return 0; | |
| 266 | |
| 267 return foldLevelWin(curwin, lnum); | |
| 268 } | |
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269 #endif |
| 7 | 270 |
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271 // lineFolded() {{{2 |
| 7 | 272 /* |
| 273 * Low level function to check if a line is folded. Doesn't use any caching. | |
| 274 * Return TRUE if line is folded. | |
| 275 * Return FALSE if line is not folded. | |
| 276 * Return MAYBE if the line is folded when next to a folded line. | |
| 277 */ | |
| 278 int | |
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279 lineFolded(win_T *win, linenr_T lnum) |
| 7 | 280 { |
| 281 return foldedCount(win, lnum, NULL) != 0; | |
| 282 } | |
| 283 | |
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284 // foldedCount() {{{2 |
| 7 | 285 /* |
| 286 * Count the number of lines that are folded at line number "lnum". | |
| 287 * Normally "lnum" is the first line of a possible fold, and the returned | |
| 288 * number is the number of lines in the fold. | |
| 289 * Doesn't use caching from the displayed window. | |
| 290 * Returns number of folded lines from "lnum", or 0 if line is not folded. | |
| 291 * When "infop" is not NULL, fills *infop with the fold level info. | |
| 292 */ | |
| 293 long | |
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294 foldedCount(win_T *win, linenr_T lnum, foldinfo_T *infop) |
| 7 | 295 { |
| 296 linenr_T last; | |
| 297 | |
| 298 if (hasFoldingWin(win, lnum, NULL, &last, FALSE, infop)) | |
| 299 return (long)(last - lnum + 1); | |
| 300 return 0; | |
| 301 } | |
| 302 | |
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303 // foldmethodIsManual() {{{2 |
| 7 | 304 /* |
| 305 * Return TRUE if 'foldmethod' is "manual" | |
| 306 */ | |
| 307 int | |
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308 foldmethodIsManual(win_T *wp) |
| 7 | 309 { |
| 310 return (wp->w_p_fdm[3] == 'u'); | |
| 311 } | |
| 312 | |
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313 // foldmethodIsIndent() {{{2 |
| 7 | 314 /* |
| 315 * Return TRUE if 'foldmethod' is "indent" | |
| 316 */ | |
| 317 int | |
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318 foldmethodIsIndent(win_T *wp) |
| 7 | 319 { |
| 320 return (wp->w_p_fdm[0] == 'i'); | |
| 321 } | |
| 322 | |
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323 // foldmethodIsExpr() {{{2 |
| 7 | 324 /* |
| 325 * Return TRUE if 'foldmethod' is "expr" | |
| 326 */ | |
| 327 int | |
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328 foldmethodIsExpr(win_T *wp) |
| 7 | 329 { |
| 330 return (wp->w_p_fdm[1] == 'x'); | |
| 331 } | |
| 332 | |
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333 // foldmethodIsMarker() {{{2 |
| 7 | 334 /* |
| 335 * Return TRUE if 'foldmethod' is "marker" | |
| 336 */ | |
| 337 int | |
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338 foldmethodIsMarker(win_T *wp) |
| 7 | 339 { |
| 340 return (wp->w_p_fdm[2] == 'r'); | |
| 341 } | |
| 342 | |
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343 // foldmethodIsSyntax() {{{2 |
| 7 | 344 /* |
| 345 * Return TRUE if 'foldmethod' is "syntax" | |
| 346 */ | |
| 347 int | |
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348 foldmethodIsSyntax(win_T *wp) |
| 7 | 349 { |
| 350 return (wp->w_p_fdm[0] == 's'); | |
| 351 } | |
| 352 | |
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353 // foldmethodIsDiff() {{{2 |
| 7 | 354 /* |
| 355 * Return TRUE if 'foldmethod' is "diff" | |
| 356 */ | |
| 357 int | |
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358 foldmethodIsDiff(win_T *wp) |
| 7 | 359 { |
| 360 return (wp->w_p_fdm[0] == 'd'); | |
| 361 } | |
| 362 | |
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363 // closeFold() {{{2 |
| 7 | 364 /* |
| 365 * Close fold for current window at line "lnum". | |
| 366 * Repeat "count" times. | |
| 367 */ | |
| 368 void | |
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369 closeFold(linenr_T lnum, long count) |
| 7 | 370 { |
| 371 setFoldRepeat(lnum, count, FALSE); | |
| 372 } | |
| 373 | |
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374 // closeFoldRecurse() {{{2 |
| 7 | 375 /* |
| 376 * Close fold for current window at line "lnum" recursively. | |
| 377 */ | |
| 378 void | |
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379 closeFoldRecurse(linenr_T lnum) |
| 7 | 380 { |
| 381 (void)setManualFold(lnum, FALSE, TRUE, NULL); | |
| 382 } | |
| 383 | |
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384 // opFoldRange() {{{2 |
| 7 | 385 /* |
| 386 * Open or Close folds for current window in lines "first" to "last". | |
| 387 * Used for "zo", "zO", "zc" and "zC" in Visual mode. | |
| 388 */ | |
| 389 void | |
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390 opFoldRange( |
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391 linenr_T first, |
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392 linenr_T last, |
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393 int opening, // TRUE to open, FALSE to close |
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394 int recurse, // TRUE to do it recursively |
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395 int had_visual) // TRUE when Visual selection used |
| 7 | 396 { |
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397 int done = DONE_NOTHING; // avoid error messages |
| 7 | 398 linenr_T lnum; |
| 399 linenr_T lnum_next; | |
| 400 | |
| 401 for (lnum = first; lnum <= last; lnum = lnum_next + 1) | |
| 402 { | |
| 403 lnum_next = lnum; | |
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404 // Opening one level only: next fold to open is after the one going to |
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405 // be opened. |
| 7 | 406 if (opening && !recurse) |
| 407 (void)hasFolding(lnum, NULL, &lnum_next); | |
| 408 (void)setManualFold(lnum, opening, recurse, &done); | |
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409 // Closing one level only: next line to close a fold is after just |
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410 // closed fold. |
| 7 | 411 if (!opening && !recurse) |
| 412 (void)hasFolding(lnum, NULL, &lnum_next); | |
| 413 } | |
| 414 if (done == DONE_NOTHING) | |
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415 emsg(_(e_nofold)); |
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416 // Force a redraw to remove the Visual highlighting. |
| 7 | 417 if (had_visual) |
| 418 redraw_curbuf_later(INVERTED); | |
| 419 } | |
| 420 | |
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421 // openFold() {{{2 |
| 7 | 422 /* |
| 423 * Open fold for current window at line "lnum". | |
| 424 * Repeat "count" times. | |
| 425 */ | |
| 426 void | |
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427 openFold(linenr_T lnum, long count) |
| 7 | 428 { |
| 429 setFoldRepeat(lnum, count, TRUE); | |
| 430 } | |
| 431 | |
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432 // openFoldRecurse() {{{2 |
| 7 | 433 /* |
| 434 * Open fold for current window at line "lnum" recursively. | |
| 435 */ | |
| 436 void | |
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437 openFoldRecurse(linenr_T lnum) |
| 7 | 438 { |
| 439 (void)setManualFold(lnum, TRUE, TRUE, NULL); | |
| 440 } | |
| 441 | |
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442 // foldOpenCursor() {{{2 |
| 7 | 443 /* |
| 444 * Open folds until the cursor line is not in a closed fold. | |
| 445 */ | |
| 446 void | |
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447 foldOpenCursor(void) |
| 7 | 448 { |
| 449 int done; | |
| 450 | |
| 451 checkupdate(curwin); | |
| 452 if (hasAnyFolding(curwin)) | |
| 453 for (;;) | |
| 454 { | |
| 455 done = DONE_NOTHING; | |
| 456 (void)setManualFold(curwin->w_cursor.lnum, TRUE, FALSE, &done); | |
| 457 if (!(done & DONE_ACTION)) | |
| 458 break; | |
| 459 } | |
| 460 } | |
| 461 | |
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462 // newFoldLevel() {{{2 |
| 7 | 463 /* |
| 464 * Set new foldlevel for current window. | |
| 465 */ | |
| 466 void | |
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467 newFoldLevel(void) |
| 7 | 468 { |
| 469 newFoldLevelWin(curwin); | |
| 470 | |
| 471 #ifdef FEAT_DIFF | |
| 472 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
| 473 { | |
| 474 win_T *wp; | |
| 475 | |
| 476 /* | |
| 477 * Set the same foldlevel in other windows in diff mode. | |
| 478 */ | |
| 479 FOR_ALL_WINDOWS(wp) | |
| 480 { | |
| 481 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
| 482 { | |
| 483 wp->w_p_fdl = curwin->w_p_fdl; | |
| 484 newFoldLevelWin(wp); | |
| 485 } | |
| 486 } | |
| 487 } | |
| 488 #endif | |
| 489 } | |
| 490 | |
| 491 static void | |
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492 newFoldLevelWin(win_T *wp) |
| 7 | 493 { |
| 494 fold_T *fp; | |
| 495 int i; | |
| 496 | |
| 497 checkupdate(wp); | |
| 498 if (wp->w_fold_manual) | |
| 499 { | |
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500 // Set all flags for the first level of folds to FD_LEVEL. Following |
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501 // manual open/close will then change the flags to FD_OPEN or |
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502 // FD_CLOSED for those folds that don't use 'foldlevel'. |
| 7 | 503 fp = (fold_T *)wp->w_folds.ga_data; |
| 504 for (i = 0; i < wp->w_folds.ga_len; ++i) | |
| 505 fp[i].fd_flags = FD_LEVEL; | |
| 506 wp->w_fold_manual = FALSE; | |
| 507 } | |
| 508 changed_window_setting_win(wp); | |
| 509 } | |
| 510 | |
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511 // foldCheckClose() {{{2 |
| 7 | 512 /* |
| 513 * Apply 'foldlevel' to all folds that don't contain the cursor. | |
| 514 */ | |
| 515 void | |
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516 foldCheckClose(void) |
| 7 | 517 { |
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518 if (*p_fcl != NUL) // can only be "all" right now |
| 7 | 519 { |
| 520 checkupdate(curwin); | |
| 521 if (checkCloseRec(&curwin->w_folds, curwin->w_cursor.lnum, | |
| 522 (int)curwin->w_p_fdl)) | |
| 523 changed_window_setting(); | |
| 524 } | |
| 525 } | |
| 526 | |
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527 // checkCloseRec() {{{2 |
| 7 | 528 static int |
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529 checkCloseRec(garray_T *gap, linenr_T lnum, int level) |
| 7 | 530 { |
| 531 fold_T *fp; | |
| 532 int retval = FALSE; | |
| 533 int i; | |
| 534 | |
| 535 fp = (fold_T *)gap->ga_data; | |
| 536 for (i = 0; i < gap->ga_len; ++i) | |
| 537 { | |
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538 // Only manually opened folds may need to be closed. |
| 7 | 539 if (fp[i].fd_flags == FD_OPEN) |
| 540 { | |
| 541 if (level <= 0 && (lnum < fp[i].fd_top | |
| 542 || lnum >= fp[i].fd_top + fp[i].fd_len)) | |
| 543 { | |
| 544 fp[i].fd_flags = FD_LEVEL; | |
| 545 retval = TRUE; | |
| 546 } | |
| 547 else | |
| 548 retval |= checkCloseRec(&fp[i].fd_nested, lnum - fp[i].fd_top, | |
| 549 level - 1); | |
| 550 } | |
| 551 } | |
| 552 return retval; | |
| 553 } | |
| 554 | |
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555 // foldCreateAllowed() {{{2 |
| 7 | 556 /* |
| 557 * Return TRUE if it's allowed to manually create or delete a fold. | |
| 558 * Give an error message and return FALSE if not. | |
| 559 */ | |
| 560 int | |
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561 foldManualAllowed(int create) |
| 7 | 562 { |
| 563 if (foldmethodIsManual(curwin) || foldmethodIsMarker(curwin)) | |
| 564 return TRUE; | |
| 565 if (create) | |
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566 emsg(_("E350: Cannot create fold with current 'foldmethod'")); |
| 7 | 567 else |
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568 emsg(_("E351: Cannot delete fold with current 'foldmethod'")); |
| 7 | 569 return FALSE; |
| 570 } | |
| 571 | |
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572 // foldCreate() {{{2 |
| 7 | 573 /* |
| 574 * Create a fold from line "start" to line "end" (inclusive) in the current | |
| 575 * window. | |
| 576 */ | |
| 577 void | |
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578 foldCreate(linenr_T start, linenr_T end) |
| 7 | 579 { |
| 580 fold_T *fp; | |
| 581 garray_T *gap; | |
| 582 garray_T fold_ga; | |
| 583 int i, j; | |
| 584 int cont; | |
| 585 int use_level = FALSE; | |
| 586 int closed = FALSE; | |
| 587 int level = 0; | |
| 588 linenr_T start_rel = start; | |
| 589 linenr_T end_rel = end; | |
| 590 | |
| 591 if (start > end) | |
| 592 { | |
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593 // reverse the range |
| 7 | 594 end = start_rel; |
| 595 start = end_rel; | |
| 596 start_rel = start; | |
| 597 end_rel = end; | |
| 598 } | |
| 599 | |
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600 // When 'foldmethod' is "marker" add markers, which creates the folds. |
| 7 | 601 if (foldmethodIsMarker(curwin)) |
| 602 { | |
| 603 foldCreateMarkers(start, end); | |
| 604 return; | |
| 605 } | |
| 606 | |
| 607 checkupdate(curwin); | |
| 608 | |
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609 // Find the place to insert the new fold. |
| 7 | 610 gap = &curwin->w_folds; |
| 611 for (;;) | |
| 612 { | |
| 613 if (!foldFind(gap, start_rel, &fp)) | |
| 614 break; | |
| 615 if (fp->fd_top + fp->fd_len > end_rel) | |
| 616 { | |
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617 // New fold is completely inside this fold: Go one level deeper. |
| 7 | 618 gap = &fp->fd_nested; |
| 619 start_rel -= fp->fd_top; | |
| 620 end_rel -= fp->fd_top; | |
| 621 if (use_level || fp->fd_flags == FD_LEVEL) | |
| 622 { | |
| 623 use_level = TRUE; | |
| 624 if (level >= curwin->w_p_fdl) | |
| 625 closed = TRUE; | |
| 626 } | |
| 627 else if (fp->fd_flags == FD_CLOSED) | |
| 628 closed = TRUE; | |
| 629 ++level; | |
| 630 } | |
| 631 else | |
| 632 { | |
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633 // This fold and new fold overlap: Insert here and move some folds |
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634 // inside the new fold. |
| 7 | 635 break; |
| 636 } | |
| 637 } | |
| 638 | |
| 639 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 640 if (ga_grow(gap, 1) == OK) | |
| 641 { | |
| 642 fp = (fold_T *)gap->ga_data + i; | |
| 643 ga_init2(&fold_ga, (int)sizeof(fold_T), 10); | |
| 644 | |
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645 // Count number of folds that will be contained in the new fold. |
| 7 | 646 for (cont = 0; i + cont < gap->ga_len; ++cont) |
| 647 if (fp[cont].fd_top > end_rel) | |
| 648 break; | |
| 649 if (cont > 0 && ga_grow(&fold_ga, cont) == OK) | |
| 650 { | |
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651 // If the first fold starts before the new fold, let the new fold |
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652 // start there. Otherwise the existing fold would change. |
| 7 | 653 if (start_rel > fp->fd_top) |
| 654 start_rel = fp->fd_top; | |
| 655 | |
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656 // When last contained fold isn't completely contained, adjust end |
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657 // of new fold. |
| 7 | 658 if (end_rel < fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1) |
| 659 end_rel = fp[cont - 1].fd_top + fp[cont - 1].fd_len - 1; | |
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660 // Move contained folds to inside new fold. |
| 7 | 661 mch_memmove(fold_ga.ga_data, fp, sizeof(fold_T) * cont); |
| 662 fold_ga.ga_len += cont; | |
| 663 i += cont; | |
| 664 | |
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665 // Adjust line numbers in contained folds to be relative to the |
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666 // new fold. |
| 7 | 667 for (j = 0; j < cont; ++j) |
| 668 ((fold_T *)fold_ga.ga_data)[j].fd_top -= start_rel; | |
| 669 } | |
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670 // Move remaining entries to after the new fold. |
| 7 | 671 if (i < gap->ga_len) |
| 672 mch_memmove(fp + 1, (fold_T *)gap->ga_data + i, | |
| 673 sizeof(fold_T) * (gap->ga_len - i)); | |
| 674 gap->ga_len = gap->ga_len + 1 - cont; | |
| 675 | |
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676 // insert new fold |
| 7 | 677 fp->fd_nested = fold_ga; |
| 678 fp->fd_top = start_rel; | |
| 679 fp->fd_len = end_rel - start_rel + 1; | |
| 680 | |
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681 // We want the new fold to be closed. If it would remain open because |
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682 // of using 'foldlevel', need to adjust fd_flags of containing folds. |
| 7 | 683 if (use_level && !closed && level < curwin->w_p_fdl) |
| 684 closeFold(start, 1L); | |
| 685 if (!use_level) | |
| 686 curwin->w_fold_manual = TRUE; | |
| 687 fp->fd_flags = FD_CLOSED; | |
| 688 fp->fd_small = MAYBE; | |
| 689 | |
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690 // redraw |
| 7 | 691 changed_window_setting(); |
| 692 } | |
| 693 } | |
| 694 | |
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695 // deleteFold() {{{2 |
| 7 | 696 /* |
| 697 * Delete a fold at line "start" in the current window. | |
| 698 * When "end" is not 0, delete all folds from "start" to "end". | |
| 699 * When "recursive" is TRUE delete recursively. | |
| 700 */ | |
| 701 void | |
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702 deleteFold( |
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703 linenr_T start, |
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704 linenr_T end, |
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705 int recursive, |
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706 int had_visual) // TRUE when Visual selection used |
| 7 | 707 { |
| 708 garray_T *gap; | |
| 709 fold_T *fp; | |
| 710 garray_T *found_ga; | |
| 711 fold_T *found_fp = NULL; | |
| 712 linenr_T found_off = 0; | |
| 1780 | 713 int use_level; |
| 7 | 714 int maybe_small = FALSE; |
| 715 int level = 0; | |
| 716 linenr_T lnum = start; | |
| 717 linenr_T lnum_off; | |
| 718 int did_one = FALSE; | |
| 719 linenr_T first_lnum = MAXLNUM; | |
| 720 linenr_T last_lnum = 0; | |
| 721 | |
| 722 checkupdate(curwin); | |
| 723 | |
| 724 while (lnum <= end) | |
| 725 { | |
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726 // Find the deepest fold for "start". |
| 7 | 727 gap = &curwin->w_folds; |
| 728 found_ga = NULL; | |
| 729 lnum_off = 0; | |
| 1780 | 730 use_level = FALSE; |
| 7 | 731 for (;;) |
| 732 { | |
| 733 if (!foldFind(gap, lnum - lnum_off, &fp)) | |
| 734 break; | |
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735 // lnum is inside this fold, remember info |
| 7 | 736 found_ga = gap; |
| 737 found_fp = fp; | |
| 738 found_off = lnum_off; | |
| 739 | |
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740 // if "lnum" is folded, don't check nesting |
| 7 | 741 if (check_closed(curwin, fp, &use_level, level, |
| 742 &maybe_small, lnum_off)) | |
| 743 break; | |
| 744 | |
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745 // check nested folds |
| 7 | 746 gap = &fp->fd_nested; |
| 747 lnum_off += fp->fd_top; | |
| 748 ++level; | |
| 749 } | |
| 750 if (found_ga == NULL) | |
| 751 { | |
| 752 ++lnum; | |
| 753 } | |
| 754 else | |
| 755 { | |
| 756 lnum = found_fp->fd_top + found_fp->fd_len + found_off; | |
| 757 | |
| 758 if (foldmethodIsManual(curwin)) | |
| 759 deleteFoldEntry(found_ga, | |
| 760 (int)(found_fp - (fold_T *)found_ga->ga_data), recursive); | |
| 761 else | |
| 762 { | |
| 1780 | 763 if (first_lnum > found_fp->fd_top + found_off) |
| 764 first_lnum = found_fp->fd_top + found_off; | |
| 765 if (last_lnum < lnum) | |
| 7 | 766 last_lnum = lnum; |
| 1780 | 767 if (!did_one) |
| 768 parseMarker(curwin); | |
| 7 | 769 deleteFoldMarkers(found_fp, recursive, found_off); |
| 770 } | |
| 1780 | 771 did_one = TRUE; |
| 7 | 772 |
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773 // redraw window |
| 7 | 774 changed_window_setting(); |
| 775 } | |
| 776 } | |
| 777 if (!did_one) | |
| 778 { | |
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779 emsg(_(e_nofold)); |
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780 // Force a redraw to remove the Visual highlighting. |
| 7 | 781 if (had_visual) |
| 782 redraw_curbuf_later(INVERTED); | |
| 783 } | |
| 1780 | 784 else |
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785 // Deleting markers may make cursor column invalid. |
| 1780 | 786 check_cursor_col(); |
| 787 | |
| 7 | 788 if (last_lnum > 0) |
| 789 changed_lines(first_lnum, (colnr_T)0, last_lnum, 0L); | |
| 790 } | |
| 791 | |
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792 // clearFolding() {{{2 |
| 7 | 793 /* |
| 794 * Remove all folding for window "win". | |
| 795 */ | |
| 796 void | |
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797 clearFolding(win_T *win) |
| 7 | 798 { |
| 799 deleteFoldRecurse(&win->w_folds); | |
| 800 win->w_foldinvalid = FALSE; | |
| 801 } | |
| 802 | |
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803 // foldUpdate() {{{2 |
| 7 | 804 /* |
| 805 * Update folds for changes in the buffer of a window. | |
| 806 * Note that inserted/deleted lines must have already been taken care of by | |
| 807 * calling foldMarkAdjust(). | |
| 808 * The changes in lines from top to bot (inclusive). | |
| 809 */ | |
| 810 void | |
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811 foldUpdate(win_T *wp, linenr_T top, linenr_T bot) |
| 7 | 812 { |
| 813 fold_T *fp; | |
| 814 | |
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815 if (disable_fold_update > 0) |
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816 return; |
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817 #ifdef FEAT_DIFF |
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818 if (need_diff_redraw) |
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819 // will update later |
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820 return; |
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821 #endif |
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822 |
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823 // Mark all folds from top to bot as maybe-small. |
| 6755 | 824 (void)foldFind(&wp->w_folds, top, &fp); |
| 825 while (fp < (fold_T *)wp->w_folds.ga_data + wp->w_folds.ga_len | |
| 7 | 826 && fp->fd_top < bot) |
| 827 { | |
| 828 fp->fd_small = MAYBE; | |
| 829 ++fp; | |
| 830 } | |
| 831 | |
| 832 if (foldmethodIsIndent(wp) | |
| 833 || foldmethodIsExpr(wp) | |
| 834 || foldmethodIsMarker(wp) | |
| 835 #ifdef FEAT_DIFF | |
| 836 || foldmethodIsDiff(wp) | |
| 837 #endif | |
| 838 || foldmethodIsSyntax(wp)) | |
| 1424 | 839 { |
| 840 int save_got_int = got_int; | |
| 841 | |
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842 // reset got_int here, otherwise it won't work |
| 1424 | 843 got_int = FALSE; |
| 7 | 844 foldUpdateIEMS(wp, top, bot); |
| 1424 | 845 got_int |= save_got_int; |
| 846 } | |
| 7 | 847 } |
| 848 | |
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849 // foldUpdateAll() {{{2 |
| 7 | 850 /* |
| 851 * Update all lines in a window for folding. | |
| 852 * Used when a fold setting changes or after reloading the buffer. | |
| 853 * The actual updating is postponed until fold info is used, to avoid doing | |
| 854 * every time a setting is changed or a syntax item is added. | |
| 855 */ | |
| 856 void | |
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857 foldUpdateAll(win_T *win) |
| 7 | 858 { |
| 859 win->w_foldinvalid = TRUE; | |
| 860 redraw_win_later(win, NOT_VALID); | |
| 861 } | |
| 862 | |
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863 // foldMoveTo() {{{2 |
| 7 | 864 /* |
| 865 * If "updown" is FALSE: Move to the start or end of the fold. | |
| 866 * If "updown" is TRUE: move to fold at the same level. | |
| 867 * If not moved return FAIL. | |
| 868 */ | |
| 869 int | |
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870 foldMoveTo( |
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871 int updown, |
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872 int dir, // FORWARD or BACKWARD |
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873 long count) |
| 7 | 874 { |
| 875 long n; | |
| 876 int retval = FAIL; | |
| 877 linenr_T lnum_off; | |
| 878 linenr_T lnum_found; | |
| 879 linenr_T lnum; | |
| 880 int use_level; | |
| 881 int maybe_small; | |
| 882 garray_T *gap; | |
| 883 fold_T *fp; | |
| 884 int level; | |
| 885 int last; | |
| 886 | |
| 36 | 887 checkupdate(curwin); |
| 888 | |
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889 // Repeat "count" times. |
| 7 | 890 for (n = 0; n < count; ++n) |
| 891 { | |
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892 // Find nested folds. Stop when a fold is closed. The deepest fold |
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893 // that moves the cursor is used. |
| 7 | 894 lnum_off = 0; |
| 895 gap = &curwin->w_folds; | |
| 896 use_level = FALSE; | |
| 897 maybe_small = FALSE; | |
| 898 lnum_found = curwin->w_cursor.lnum; | |
| 899 level = 0; | |
| 900 last = FALSE; | |
| 901 for (;;) | |
| 902 { | |
| 903 if (!foldFind(gap, curwin->w_cursor.lnum - lnum_off, &fp)) | |
| 904 { | |
| 905 if (!updown) | |
| 906 break; | |
| 907 | |
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908 // When moving up, consider a fold above the cursor; when |
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909 // moving down consider a fold below the cursor. |
| 7 | 910 if (dir == FORWARD) |
| 911 { | |
| 912 if (fp - (fold_T *)gap->ga_data >= gap->ga_len) | |
| 913 break; | |
| 914 --fp; | |
| 915 } | |
| 916 else | |
| 917 { | |
| 918 if (fp == (fold_T *)gap->ga_data) | |
| 919 break; | |
| 920 } | |
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921 // don't look for contained folds, they will always move |
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922 // the cursor too far. |
| 7 | 923 last = TRUE; |
| 924 } | |
| 925 | |
| 926 if (!last) | |
| 927 { | |
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928 // Check if this fold is closed. |
| 7 | 929 if (check_closed(curwin, fp, &use_level, level, |
| 930 &maybe_small, lnum_off)) | |
| 931 last = TRUE; | |
| 932 | |
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933 // "[z" and "]z" stop at closed fold |
| 7 | 934 if (last && !updown) |
| 935 break; | |
| 936 } | |
| 937 | |
| 938 if (updown) | |
| 939 { | |
| 940 if (dir == FORWARD) | |
| 941 { | |
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942 // to start of next fold if there is one |
| 7 | 943 if (fp + 1 - (fold_T *)gap->ga_data < gap->ga_len) |
| 944 { | |
| 945 lnum = fp[1].fd_top + lnum_off; | |
| 946 if (lnum > curwin->w_cursor.lnum) | |
| 947 lnum_found = lnum; | |
| 948 } | |
| 949 } | |
| 950 else | |
| 951 { | |
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952 // to end of previous fold if there is one |
| 7 | 953 if (fp > (fold_T *)gap->ga_data) |
| 954 { | |
| 955 lnum = fp[-1].fd_top + lnum_off + fp[-1].fd_len - 1; | |
| 956 if (lnum < curwin->w_cursor.lnum) | |
| 957 lnum_found = lnum; | |
| 958 } | |
| 959 } | |
| 960 } | |
| 961 else | |
| 962 { | |
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963 // Open fold found, set cursor to its start/end and then check |
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964 // nested folds. |
| 7 | 965 if (dir == FORWARD) |
| 966 { | |
| 967 lnum = fp->fd_top + lnum_off + fp->fd_len - 1; | |
| 968 if (lnum > curwin->w_cursor.lnum) | |
| 969 lnum_found = lnum; | |
| 970 } | |
| 971 else | |
| 972 { | |
| 973 lnum = fp->fd_top + lnum_off; | |
| 974 if (lnum < curwin->w_cursor.lnum) | |
| 975 lnum_found = lnum; | |
| 976 } | |
| 977 } | |
| 978 | |
| 979 if (last) | |
| 980 break; | |
| 981 | |
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982 // Check nested folds (if any). |
| 7 | 983 gap = &fp->fd_nested; |
| 984 lnum_off += fp->fd_top; | |
| 985 ++level; | |
| 986 } | |
| 987 if (lnum_found != curwin->w_cursor.lnum) | |
| 988 { | |
| 989 if (retval == FAIL) | |
| 990 setpcmark(); | |
| 991 curwin->w_cursor.lnum = lnum_found; | |
| 992 curwin->w_cursor.col = 0; | |
| 993 retval = OK; | |
| 994 } | |
| 995 else | |
| 996 break; | |
| 997 } | |
| 998 | |
| 999 return retval; | |
| 1000 } | |
| 1001 | |
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1002 // foldInitWin() {{{2 |
| 7 | 1003 /* |
| 1004 * Init the fold info in a new window. | |
| 1005 */ | |
| 1006 void | |
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1007 foldInitWin(win_T *new_win) |
| 7 | 1008 { |
| 3263 | 1009 ga_init2(&new_win->w_folds, (int)sizeof(fold_T), 10); |
| 7 | 1010 } |
| 1011 | |
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1012 // find_wl_entry() {{{2 |
| 7 | 1013 /* |
| 1014 * Find an entry in the win->w_lines[] array for buffer line "lnum". | |
| 1015 * Only valid entries are considered (for entries where wl_valid is FALSE the | |
| 1016 * line number can be wrong). | |
| 1017 * Returns index of entry or -1 if not found. | |
| 1018 */ | |
| 1019 int | |
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1020 find_wl_entry(win_T *win, linenr_T lnum) |
| 7 | 1021 { |
| 1022 int i; | |
| 1023 | |
|
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1024 for (i = 0; i < win->w_lines_valid; ++i) |
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1025 if (win->w_lines[i].wl_valid) |
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1026 { |
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1027 if (lnum < win->w_lines[i].wl_lnum) |
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1028 return -1; |
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1029 if (lnum <= win->w_lines[i].wl_lastlnum) |
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1030 return i; |
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1031 } |
| 7 | 1032 return -1; |
| 1033 } | |
| 1034 | |
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1035 // foldAdjustVisual() {{{2 |
| 7 | 1036 /* |
| 1037 * Adjust the Visual area to include any fold at the start or end completely. | |
| 1038 */ | |
| 1039 void | |
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1040 foldAdjustVisual(void) |
| 7 | 1041 { |
| 1042 pos_T *start, *end; | |
| 1043 char_u *ptr; | |
| 1044 | |
| 1045 if (!VIsual_active || !hasAnyFolding(curwin)) | |
| 1046 return; | |
| 1047 | |
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1048 if (LTOREQ_POS(VIsual, curwin->w_cursor)) |
| 7 | 1049 { |
| 1050 start = &VIsual; | |
| 1051 end = &curwin->w_cursor; | |
| 1052 } | |
| 1053 else | |
| 1054 { | |
| 1055 start = &curwin->w_cursor; | |
| 1056 end = &VIsual; | |
| 1057 } | |
| 1058 if (hasFolding(start->lnum, &start->lnum, NULL)) | |
| 1059 start->col = 0; | |
| 1060 if (hasFolding(end->lnum, NULL, &end->lnum)) | |
| 1061 { | |
| 1062 ptr = ml_get(end->lnum); | |
| 1063 end->col = (colnr_T)STRLEN(ptr); | |
| 1064 if (end->col > 0 && *p_sel == 'o') | |
| 1065 --end->col; | |
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1066 // prevent cursor from moving on the trail byte |
| 7 | 1067 if (has_mbyte) |
| 1068 mb_adjust_cursor(); | |
| 1069 } | |
| 1070 } | |
| 1071 | |
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1072 // cursor_foldstart() {{{2 |
| 7 | 1073 /* |
| 1074 * Move the cursor to the first line of a closed fold. | |
| 1075 */ | |
| 1076 void | |
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1077 foldAdjustCursor(void) |
| 7 | 1078 { |
| 1079 (void)hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL); | |
| 1080 } | |
| 1081 | |
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1082 // Internal functions for "fold_T" {{{1 |
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1083 // cloneFoldGrowArray() {{{2 |
| 7 | 1084 /* |
| 1085 * Will "clone" (i.e deep copy) a garray_T of folds. | |
| 1086 * | |
| 1087 * Return FAIL if the operation cannot be completed, otherwise OK. | |
| 1088 */ | |
| 1089 void | |
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1090 cloneFoldGrowArray(garray_T *from, garray_T *to) |
| 7 | 1091 { |
| 1092 int i; | |
| 1093 fold_T *from_p; | |
| 1094 fold_T *to_p; | |
| 1095 | |
| 1096 ga_init2(to, from->ga_itemsize, from->ga_growsize); | |
| 1097 if (from->ga_len == 0 || ga_grow(to, from->ga_len) == FAIL) | |
| 1098 return; | |
| 1099 | |
| 1100 from_p = (fold_T *)from->ga_data; | |
| 1101 to_p = (fold_T *)to->ga_data; | |
| 1102 | |
| 1103 for (i = 0; i < from->ga_len; i++) | |
| 1104 { | |
| 1105 to_p->fd_top = from_p->fd_top; | |
| 1106 to_p->fd_len = from_p->fd_len; | |
| 1107 to_p->fd_flags = from_p->fd_flags; | |
| 1108 to_p->fd_small = from_p->fd_small; | |
| 1109 cloneFoldGrowArray(&from_p->fd_nested, &to_p->fd_nested); | |
| 1110 ++to->ga_len; | |
| 1111 ++from_p; | |
| 1112 ++to_p; | |
| 1113 } | |
| 1114 } | |
| 1115 | |
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1116 // foldFind() {{{2 |
| 7 | 1117 /* |
| 1118 * Search for line "lnum" in folds of growarray "gap". | |
| 1119 * Set *fpp to the fold struct for the fold that contains "lnum" or | |
| 1120 * the first fold below it (careful: it can be beyond the end of the array!). | |
| 1121 * Returns FALSE when there is no fold that contains "lnum". | |
| 1122 */ | |
| 1123 static int | |
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1124 foldFind(garray_T *gap, linenr_T lnum, fold_T **fpp) |
| 7 | 1125 { |
| 1126 linenr_T low, high; | |
| 1127 fold_T *fp; | |
| 1128 int i; | |
| 1129 | |
| 1130 /* | |
| 1131 * Perform a binary search. | |
| 1132 * "low" is lowest index of possible match. | |
| 1133 * "high" is highest index of possible match. | |
| 1134 */ | |
| 1135 fp = (fold_T *)gap->ga_data; | |
| 1136 low = 0; | |
| 1137 high = gap->ga_len - 1; | |
| 1138 while (low <= high) | |
| 1139 { | |
| 1140 i = (low + high) / 2; | |
| 1141 if (fp[i].fd_top > lnum) | |
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1142 // fold below lnum, adjust high |
| 7 | 1143 high = i - 1; |
| 1144 else if (fp[i].fd_top + fp[i].fd_len <= lnum) | |
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1145 // fold above lnum, adjust low |
| 7 | 1146 low = i + 1; |
| 1147 else | |
| 1148 { | |
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1149 // lnum is inside this fold |
| 7 | 1150 *fpp = fp + i; |
| 1151 return TRUE; | |
| 1152 } | |
| 1153 } | |
| 1154 *fpp = fp + low; | |
| 1155 return FALSE; | |
| 1156 } | |
| 1157 | |
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1158 // foldLevelWin() {{{2 |
| 7 | 1159 /* |
| 1160 * Return fold level at line number "lnum" in window "wp". | |
| 1161 */ | |
| 1162 static int | |
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1163 foldLevelWin(win_T *wp, linenr_T lnum) |
| 7 | 1164 { |
| 1165 fold_T *fp; | |
| 1166 linenr_T lnum_rel = lnum; | |
| 1167 int level = 0; | |
| 1168 garray_T *gap; | |
| 1169 | |
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1170 // Recursively search for a fold that contains "lnum". |
| 7 | 1171 gap = &wp->w_folds; |
| 1172 for (;;) | |
| 1173 { | |
| 1174 if (!foldFind(gap, lnum_rel, &fp)) | |
| 1175 break; | |
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1176 // Check nested folds. Line number is relative to containing fold. |
| 7 | 1177 gap = &fp->fd_nested; |
| 1178 lnum_rel -= fp->fd_top; | |
| 1179 ++level; | |
| 1180 } | |
| 1181 | |
| 1182 return level; | |
| 1183 } | |
| 1184 | |
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1185 // checkupdate() {{{2 |
| 7 | 1186 /* |
| 1187 * Check if the folds in window "wp" are invalid and update them if needed. | |
| 1188 */ | |
| 1189 static void | |
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1190 checkupdate(win_T *wp) |
| 7 | 1191 { |
| 1192 if (wp->w_foldinvalid) | |
| 1193 { | |
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1194 foldUpdate(wp, (linenr_T)1, (linenr_T)MAXLNUM); // will update all |
| 7 | 1195 wp->w_foldinvalid = FALSE; |
| 1196 } | |
| 1197 } | |
| 1198 | |
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1199 // setFoldRepeat() {{{2 |
| 7 | 1200 /* |
| 1201 * Open or close fold for current window at line "lnum". | |
| 1202 * Repeat "count" times. | |
| 1203 */ | |
| 1204 static void | |
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1205 setFoldRepeat(linenr_T lnum, long count, int do_open) |
| 7 | 1206 { |
| 1207 int done; | |
| 1208 long n; | |
| 1209 | |
| 1210 for (n = 0; n < count; ++n) | |
| 1211 { | |
| 1212 done = DONE_NOTHING; | |
| 1757 | 1213 (void)setManualFold(lnum, do_open, FALSE, &done); |
| 7 | 1214 if (!(done & DONE_ACTION)) |
| 1215 { | |
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1216 // Only give an error message when no fold could be opened. |
| 7 | 1217 if (n == 0 && !(done & DONE_FOLD)) |
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1218 emsg(_(e_nofold)); |
| 7 | 1219 break; |
| 1220 } | |
| 1221 } | |
| 1222 } | |
| 1223 | |
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1224 // setManualFold() {{{2 |
| 7 | 1225 /* |
| 1226 * Open or close the fold in the current window which contains "lnum". | |
| 1227 * Also does this for other windows in diff mode when needed. | |
| 1228 */ | |
| 1229 static linenr_T | |
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1230 setManualFold( |
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1231 linenr_T lnum, |
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1232 int opening, // TRUE when opening, FALSE when closing |
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1233 int recurse, // TRUE when closing/opening recursive |
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1234 int *donep) |
| 7 | 1235 { |
| 1236 #ifdef FEAT_DIFF | |
| 1237 if (foldmethodIsDiff(curwin) && curwin->w_p_scb) | |
| 1238 { | |
| 1239 win_T *wp; | |
| 1240 linenr_T dlnum; | |
| 1241 | |
| 1242 /* | |
| 1243 * Do the same operation in other windows in diff mode. Calculate the | |
| 1244 * line number from the diffs. | |
| 1245 */ | |
| 1246 FOR_ALL_WINDOWS(wp) | |
| 1247 { | |
| 1248 if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb) | |
| 1249 { | |
| 1250 dlnum = diff_lnum_win(curwin->w_cursor.lnum, wp); | |
| 1251 if (dlnum != 0) | |
| 1252 (void)setManualFoldWin(wp, dlnum, opening, recurse, NULL); | |
| 1253 } | |
| 1254 } | |
| 1255 } | |
| 1256 #endif | |
| 1257 | |
| 1258 return setManualFoldWin(curwin, lnum, opening, recurse, donep); | |
| 1259 } | |
| 1260 | |
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1261 // setManualFoldWin() {{{2 |
| 7 | 1262 /* |
| 1263 * Open or close the fold in window "wp" which contains "lnum". | |
| 1264 * "donep", when not NULL, points to flag that is set to DONE_FOLD when some | |
| 1265 * fold was found and to DONE_ACTION when some fold was opened or closed. | |
| 1266 * When "donep" is NULL give an error message when no fold was found for | |
| 1267 * "lnum", but only if "wp" is "curwin". | |
| 1268 * Return the line number of the next line that could be closed. | |
| 1269 * It's only valid when "opening" is TRUE! | |
| 1270 */ | |
| 1271 static linenr_T | |
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1272 setManualFoldWin( |
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1273 win_T *wp, |
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1274 linenr_T lnum, |
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1275 int opening, // TRUE when opening, FALSE when closing |
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1276 int recurse, // TRUE when closing/opening recursive |
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1277 int *donep) |
| 7 | 1278 { |
| 1279 fold_T *fp; | |
| 1280 fold_T *fp2; | |
| 1281 fold_T *found = NULL; | |
| 1282 int j; | |
| 1283 int level = 0; | |
| 1284 int use_level = FALSE; | |
| 1285 int found_fold = FALSE; | |
| 1286 garray_T *gap; | |
| 1287 linenr_T next = MAXLNUM; | |
| 1288 linenr_T off = 0; | |
| 1289 int done = 0; | |
| 1290 | |
| 1291 checkupdate(wp); | |
| 1292 | |
| 1293 /* | |
| 1294 * Find the fold, open or close it. | |
| 1295 */ | |
| 1296 gap = &wp->w_folds; | |
| 1297 for (;;) | |
| 1298 { | |
| 1299 if (!foldFind(gap, lnum, &fp)) | |
| 1300 { | |
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1301 // If there is a following fold, continue there next time. |
| 7 | 1302 if (fp < (fold_T *)gap->ga_data + gap->ga_len) |
| 1303 next = fp->fd_top + off; | |
| 1304 break; | |
| 1305 } | |
| 1306 | |
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1307 // lnum is inside this fold |
| 7 | 1308 found_fold = TRUE; |
| 1309 | |
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1310 // If there is a following fold, continue there next time. |
| 7 | 1311 if (fp + 1 < (fold_T *)gap->ga_data + gap->ga_len) |
| 1312 next = fp[1].fd_top + off; | |
| 1313 | |
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1314 // Change from level-dependent folding to manual. |
| 7 | 1315 if (use_level || fp->fd_flags == FD_LEVEL) |
| 1316 { | |
| 1317 use_level = TRUE; | |
| 1318 if (level >= wp->w_p_fdl) | |
| 1319 fp->fd_flags = FD_CLOSED; | |
| 1320 else | |
| 1321 fp->fd_flags = FD_OPEN; | |
| 1322 fp2 = (fold_T *)fp->fd_nested.ga_data; | |
| 1323 for (j = 0; j < fp->fd_nested.ga_len; ++j) | |
| 1324 fp2[j].fd_flags = FD_LEVEL; | |
| 1325 } | |
| 1326 | |
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1327 // Simple case: Close recursively means closing the fold. |
| 7 | 1328 if (!opening && recurse) |
| 1329 { | |
| 1330 if (fp->fd_flags != FD_CLOSED) | |
| 1331 { | |
| 1332 done |= DONE_ACTION; | |
| 1333 fp->fd_flags = FD_CLOSED; | |
| 1334 } | |
| 1335 } | |
| 1336 else if (fp->fd_flags == FD_CLOSED) | |
| 1337 { | |
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1338 // When opening, open topmost closed fold. |
| 7 | 1339 if (opening) |
| 1340 { | |
| 1341 fp->fd_flags = FD_OPEN; | |
| 1342 done |= DONE_ACTION; | |
| 1343 if (recurse) | |
| 1344 foldOpenNested(fp); | |
| 1345 } | |
| 1346 break; | |
| 1347 } | |
| 1348 | |
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1349 // fold is open, check nested folds |
| 7 | 1350 found = fp; |
| 1351 gap = &fp->fd_nested; | |
| 1352 lnum -= fp->fd_top; | |
| 1353 off += fp->fd_top; | |
| 1354 ++level; | |
| 1355 } | |
| 1356 if (found_fold) | |
| 1357 { | |
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1358 // When closing and not recurse, close deepest open fold. |
| 7 | 1359 if (!opening && found != NULL) |
| 1360 { | |
| 1361 found->fd_flags = FD_CLOSED; | |
| 1362 done |= DONE_ACTION; | |
| 1363 } | |
| 1364 wp->w_fold_manual = TRUE; | |
| 1365 if (done & DONE_ACTION) | |
| 1366 changed_window_setting_win(wp); | |
| 1367 done |= DONE_FOLD; | |
| 1368 } | |
| 1369 else if (donep == NULL && wp == curwin) | |
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1370 emsg(_(e_nofold)); |
| 7 | 1371 |
| 1372 if (donep != NULL) | |
| 1373 *donep |= done; | |
| 1374 | |
| 1375 return next; | |
| 1376 } | |
| 1377 | |
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1378 // foldOpenNested() {{{2 |
| 7 | 1379 /* |
| 1380 * Open all nested folds in fold "fpr" recursively. | |
| 1381 */ | |
| 1382 static void | |
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1383 foldOpenNested(fold_T *fpr) |
| 7 | 1384 { |
| 1385 int i; | |
| 1386 fold_T *fp; | |
| 1387 | |
| 1388 fp = (fold_T *)fpr->fd_nested.ga_data; | |
| 1389 for (i = 0; i < fpr->fd_nested.ga_len; ++i) | |
| 1390 { | |
| 1391 foldOpenNested(&fp[i]); | |
| 1392 fp[i].fd_flags = FD_OPEN; | |
| 1393 } | |
| 1394 } | |
| 1395 | |
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1396 // deleteFoldEntry() {{{2 |
| 7 | 1397 /* |
| 1398 * Delete fold "idx" from growarray "gap". | |
| 1399 * When "recursive" is TRUE also delete all the folds contained in it. | |
| 1400 * When "recursive" is FALSE contained folds are moved one level up. | |
| 1401 */ | |
| 1402 static void | |
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1403 deleteFoldEntry(garray_T *gap, int idx, int recursive) |
| 7 | 1404 { |
| 1405 fold_T *fp; | |
| 1406 int i; | |
| 1407 long moved; | |
| 1408 fold_T *nfp; | |
| 1409 | |
| 1410 fp = (fold_T *)gap->ga_data + idx; | |
| 1411 if (recursive || fp->fd_nested.ga_len == 0) | |
| 1412 { | |
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1413 // recursively delete the contained folds |
| 7 | 1414 deleteFoldRecurse(&fp->fd_nested); |
| 1415 --gap->ga_len; | |
| 1416 if (idx < gap->ga_len) | |
| 1417 mch_memmove(fp, fp + 1, sizeof(fold_T) * (gap->ga_len - idx)); | |
| 1418 } | |
| 1419 else | |
| 1420 { | |
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1421 // Move nested folds one level up, to overwrite the fold that is |
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1422 // deleted. |
| 7 | 1423 moved = fp->fd_nested.ga_len; |
| 1424 if (ga_grow(gap, (int)(moved - 1)) == OK) | |
| 1425 { | |
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1426 // Get "fp" again, the array may have been reallocated. |
| 3028 | 1427 fp = (fold_T *)gap->ga_data + idx; |
| 1428 | |
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1429 // adjust fd_top and fd_flags for the moved folds |
| 7 | 1430 nfp = (fold_T *)fp->fd_nested.ga_data; |
| 1431 for (i = 0; i < moved; ++i) | |
| 1432 { | |
| 1433 nfp[i].fd_top += fp->fd_top; | |
| 1434 if (fp->fd_flags == FD_LEVEL) | |
| 1435 nfp[i].fd_flags = FD_LEVEL; | |
| 1436 if (fp->fd_small == MAYBE) | |
| 1437 nfp[i].fd_small = MAYBE; | |
| 1438 } | |
| 1439 | |
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1440 // move the existing folds down to make room |
| 3028 | 1441 if (idx + 1 < gap->ga_len) |
| 7 | 1442 mch_memmove(fp + moved, fp + 1, |
| 3028 | 1443 sizeof(fold_T) * (gap->ga_len - (idx + 1))); |
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1444 // move the contained folds one level up |
| 7 | 1445 mch_memmove(fp, nfp, (size_t)(sizeof(fold_T) * moved)); |
| 1446 vim_free(nfp); | |
| 1447 gap->ga_len += moved - 1; | |
| 1448 } | |
| 1449 } | |
| 1450 } | |
| 1451 | |
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1452 // deleteFoldRecurse() {{{2 |
| 7 | 1453 /* |
| 1454 * Delete nested folds in a fold. | |
| 1455 */ | |
| 1456 void | |
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1457 deleteFoldRecurse(garray_T *gap) |
| 7 | 1458 { |
| 1459 int i; | |
| 1460 | |
| 1461 for (i = 0; i < gap->ga_len; ++i) | |
| 1462 deleteFoldRecurse(&(((fold_T *)(gap->ga_data))[i].fd_nested)); | |
| 1463 ga_clear(gap); | |
| 1464 } | |
| 1465 | |
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1466 // foldMarkAdjust() {{{2 |
| 7 | 1467 /* |
| 1468 * Update line numbers of folds for inserted/deleted lines. | |
| 1469 */ | |
| 1470 void | |
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1471 foldMarkAdjust( |
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1472 win_T *wp, |
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1473 linenr_T line1, |
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1474 linenr_T line2, |
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1475 long amount, |
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1476 long amount_after) |
| 7 | 1477 { |
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1478 // If deleting marks from line1 to line2, but not deleting all those |
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1479 // lines, set line2 so that only deleted lines have their folds removed. |
| 7 | 1480 if (amount == MAXLNUM && line2 >= line1 && line2 - line1 >= -amount_after) |
| 1481 line2 = line1 - amount_after - 1; | |
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1482 // If appending a line in Insert mode, it should be included in the fold |
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1483 // just above the line. |
| 7 | 1484 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) |
| 1485 --line1; | |
| 1486 foldMarkAdjustRecurse(&wp->w_folds, line1, line2, amount, amount_after); | |
| 1487 } | |
| 1488 | |
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1489 // foldMarkAdjustRecurse() {{{2 |
| 7 | 1490 static void |
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1491 foldMarkAdjustRecurse( |
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1492 garray_T *gap, |
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1493 linenr_T line1, |
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1494 linenr_T line2, |
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1495 long amount, |
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|
1496 long amount_after) |
| 7 | 1497 { |
| 1498 fold_T *fp; | |
| 1499 int i; | |
| 1500 linenr_T last; | |
| 1501 linenr_T top; | |
| 1502 | |
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1503 // In Insert mode an inserted line at the top of a fold is considered part |
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1504 // of the fold, otherwise it isn't. |
| 7 | 1505 if ((State & INSERT) && amount == (linenr_T)1 && line2 == MAXLNUM) |
| 1506 top = line1 + 1; | |
| 1507 else | |
| 1508 top = line1; | |
| 1509 | |
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1510 // Find the fold containing or just below "line1". |
| 7 | 1511 (void)foldFind(gap, line1, &fp); |
| 1512 | |
| 1513 /* | |
| 1514 * Adjust all folds below "line1" that are affected. | |
| 1515 */ | |
| 1516 for (i = (int)(fp - (fold_T *)gap->ga_data); i < gap->ga_len; ++i, ++fp) | |
| 1517 { | |
| 1518 /* | |
| 1519 * Check for these situations: | |
| 1520 * 1 2 3 | |
| 1521 * 1 2 3 | |
| 1522 * line1 2 3 4 5 | |
| 1523 * 2 3 4 5 | |
| 1524 * 2 3 4 5 | |
| 1525 * line2 2 3 4 5 | |
| 1526 * 3 5 6 | |
| 1527 * 3 5 6 | |
| 1528 */ | |
| 1529 | |
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1530 last = fp->fd_top + fp->fd_len - 1; // last line of fold |
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1531 |
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1532 // 1. fold completely above line1: nothing to do |
| 7 | 1533 if (last < line1) |
| 1534 continue; | |
| 1535 | |
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1536 // 6. fold below line2: only adjust for amount_after |
| 7 | 1537 if (fp->fd_top > line2) |
| 1538 { | |
| 1539 if (amount_after == 0) | |
| 1540 break; | |
| 1541 fp->fd_top += amount_after; | |
| 1542 } | |
| 1543 else | |
| 1544 { | |
| 1545 if (fp->fd_top >= top && last <= line2) | |
| 1546 { | |
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1547 // 4. fold completely contained in range |
| 7 | 1548 if (amount == MAXLNUM) |
| 1549 { | |
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1550 // Deleting lines: delete the fold completely |
| 7 | 1551 deleteFoldEntry(gap, i, TRUE); |
|
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1552 --i; // adjust index for deletion |
| 7 | 1553 --fp; |
| 1554 } | |
| 1555 else | |
| 1556 fp->fd_top += amount; | |
| 1557 } | |
| 1558 else | |
| 1559 { | |
| 1560 if (fp->fd_top < top) | |
| 1561 { | |
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1562 // 2 or 3: need to correct nested folds too |
| 1964 | 1563 foldMarkAdjustRecurse(&fp->fd_nested, line1 - fp->fd_top, |
| 1564 line2 - fp->fd_top, amount, amount_after); | |
| 7 | 1565 if (last <= line2) |
| 1566 { | |
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1567 // 2. fold contains line1, line2 is below fold |
| 7 | 1568 if (amount == MAXLNUM) |
| 1569 fp->fd_len = line1 - fp->fd_top; | |
| 1570 else | |
| 1571 fp->fd_len += amount; | |
| 1572 } | |
| 1573 else | |
| 1574 { | |
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1575 // 3. fold contains line1 and line2 |
| 7 | 1576 fp->fd_len += amount_after; |
| 1577 } | |
| 1578 } | |
| 1579 else | |
| 1580 { | |
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1581 // 5. fold is below line1 and contains line2; need to |
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1582 // correct nested folds too |
| 7 | 1583 if (amount == MAXLNUM) |
| 1584 { | |
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1585 foldMarkAdjustRecurse(&fp->fd_nested, |
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1586 line1 - fp->fd_top, |
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1587 line2 - fp->fd_top, |
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1588 amount, |
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1589 amount_after + (fp->fd_top - top)); |
| 7 | 1590 fp->fd_len -= line2 - fp->fd_top + 1; |
| 1591 fp->fd_top = line1; | |
| 1592 } | |
| 1593 else | |
| 1594 { | |
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1595 foldMarkAdjustRecurse(&fp->fd_nested, |
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1596 line1 - fp->fd_top, |
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1597 line2 - fp->fd_top, |
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1598 amount, |
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1599 amount_after - amount); |
| 7 | 1600 fp->fd_len += amount_after - amount; |
| 1601 fp->fd_top += amount; | |
| 1602 } | |
| 1603 } | |
| 1604 } | |
| 1605 } | |
| 1606 } | |
| 1607 } | |
| 1608 | |
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1609 // getDeepestNesting() {{{2 |
| 7 | 1610 /* |
| 1611 * Get the lowest 'foldlevel' value that makes the deepest nested fold in the | |
| 1612 * current window open. | |
| 1613 */ | |
| 1614 int | |
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1615 getDeepestNesting(void) |
| 7 | 1616 { |
| 1617 checkupdate(curwin); | |
| 1618 return getDeepestNestingRecurse(&curwin->w_folds); | |
| 1619 } | |
| 1620 | |
| 1621 static int | |
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1622 getDeepestNestingRecurse(garray_T *gap) |
| 7 | 1623 { |
| 1624 int i; | |
| 1625 int level; | |
| 1626 int maxlevel = 0; | |
| 1627 fold_T *fp; | |
| 1628 | |
| 1629 fp = (fold_T *)gap->ga_data; | |
| 1630 for (i = 0; i < gap->ga_len; ++i) | |
| 1631 { | |
| 1632 level = getDeepestNestingRecurse(&fp[i].fd_nested) + 1; | |
| 1633 if (level > maxlevel) | |
| 1634 maxlevel = level; | |
| 1635 } | |
| 1636 | |
| 1637 return maxlevel; | |
| 1638 } | |
| 1639 | |
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1640 // check_closed() {{{2 |
| 7 | 1641 /* |
| 1642 * Check if a fold is closed and update the info needed to check nested folds. | |
| 1643 */ | |
| 1644 static int | |
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1645 check_closed( |
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1646 win_T *win, |
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1647 fold_T *fp, |
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1648 int *use_levelp, // TRUE: outer fold had FD_LEVEL |
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1649 int level, // folding depth |
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1650 int *maybe_smallp, // TRUE: outer this had fd_small == MAYBE |
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1651 linenr_T lnum_off) // line number offset for fp->fd_top |
| 7 | 1652 { |
| 1653 int closed = FALSE; | |
| 1654 | |
|
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1655 // Check if this fold is closed. If the flag is FD_LEVEL this |
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1656 // fold and all folds it contains depend on 'foldlevel'. |
| 7 | 1657 if (*use_levelp || fp->fd_flags == FD_LEVEL) |
| 1658 { | |
| 1659 *use_levelp = TRUE; | |
| 1660 if (level >= win->w_p_fdl) | |
| 1661 closed = TRUE; | |
| 1662 } | |
| 1663 else if (fp->fd_flags == FD_CLOSED) | |
| 1664 closed = TRUE; | |
| 1665 | |
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1666 // Small fold isn't closed anyway. |
| 7 | 1667 if (fp->fd_small == MAYBE) |
| 1668 *maybe_smallp = TRUE; | |
| 1669 if (closed) | |
| 1670 { | |
| 1671 if (*maybe_smallp) | |
| 1672 fp->fd_small = MAYBE; | |
| 1673 checkSmall(win, fp, lnum_off); | |
| 1674 if (fp->fd_small == TRUE) | |
| 1675 closed = FALSE; | |
| 1676 } | |
| 1677 return closed; | |
| 1678 } | |
| 1679 | |
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1680 // checkSmall() {{{2 |
| 7 | 1681 /* |
| 1682 * Update fd_small field of fold "fp". | |
| 1683 */ | |
| 1684 static void | |
|
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1685 checkSmall( |
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1686 win_T *wp, |
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1687 fold_T *fp, |
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|
1688 linenr_T lnum_off) // offset for fp->fd_top |
| 7 | 1689 { |
| 1690 int count; | |
| 1691 int n; | |
| 1692 | |
| 1693 if (fp->fd_small == MAYBE) | |
| 1694 { | |
|
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1695 // Mark any nested folds to maybe-small |
| 7 | 1696 setSmallMaybe(&fp->fd_nested); |
| 1697 | |
| 1698 if (fp->fd_len > curwin->w_p_fml) | |
| 1699 fp->fd_small = FALSE; | |
| 1700 else | |
| 1701 { | |
| 1702 count = 0; | |
| 1703 for (n = 0; n < fp->fd_len; ++n) | |
| 1704 { | |
| 1705 count += plines_win_nofold(wp, fp->fd_top + lnum_off + n); | |
| 1706 if (count > curwin->w_p_fml) | |
| 1707 { | |
| 1708 fp->fd_small = FALSE; | |
| 1709 return; | |
| 1710 } | |
| 1711 } | |
| 1712 fp->fd_small = TRUE; | |
| 1713 } | |
| 1714 } | |
| 1715 } | |
| 1716 | |
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1717 // setSmallMaybe() {{{2 |
| 7 | 1718 /* |
| 1719 * Set small flags in "gap" to MAYBE. | |
| 1720 */ | |
| 1721 static void | |
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1722 setSmallMaybe(garray_T *gap) |
| 7 | 1723 { |
| 1724 int i; | |
| 1725 fold_T *fp; | |
| 1726 | |
| 1727 fp = (fold_T *)gap->ga_data; | |
| 1728 for (i = 0; i < gap->ga_len; ++i) | |
| 1729 fp[i].fd_small = MAYBE; | |
| 1730 } | |
| 1731 | |
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1732 // foldCreateMarkers() {{{2 |
| 7 | 1733 /* |
| 1734 * Create a fold from line "start" to line "end" (inclusive) in the current | |
| 1735 * window by adding markers. | |
| 1736 */ | |
| 1737 static void | |
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1738 foldCreateMarkers(linenr_T start, linenr_T end) |
| 7 | 1739 { |
| 1740 if (!curbuf->b_p_ma) | |
| 1741 { | |
|
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1742 emsg(_(e_modifiable)); |
| 7 | 1743 return; |
| 1744 } | |
| 1745 parseMarker(curwin); | |
| 1746 | |
| 1747 foldAddMarker(start, curwin->w_p_fmr, foldstartmarkerlen); | |
| 1748 foldAddMarker(end, foldendmarker, foldendmarkerlen); | |
| 1749 | |
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1750 // Update both changes here, to avoid all folds after the start are |
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1751 // changed when the start marker is inserted and the end isn't. |
| 7 | 1752 changed_lines(start, (colnr_T)0, end, 0L); |
| 1753 } | |
| 1754 | |
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1755 // foldAddMarker() {{{2 |
| 7 | 1756 /* |
| 1757 * Add "marker[markerlen]" in 'commentstring' to line "lnum". | |
| 1758 */ | |
| 1759 static void | |
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1760 foldAddMarker(linenr_T lnum, char_u *marker, int markerlen) |
| 7 | 1761 { |
| 1762 char_u *cms = curbuf->b_p_cms; | |
| 1763 char_u *line; | |
| 1764 int line_len; | |
| 1765 char_u *newline; | |
| 1766 char_u *p = (char_u *)strstr((char *)curbuf->b_p_cms, "%s"); | |
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1767 int line_is_comment = FALSE; |
| 7 | 1768 |
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1769 // Allocate a new line: old-line + 'cms'-start + marker + 'cms'-end |
| 7 | 1770 line = ml_get(lnum); |
| 1771 line_len = (int)STRLEN(line); | |
| 1772 | |
| 1773 if (u_save(lnum - 1, lnum + 1) == OK) | |
| 1774 { | |
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1775 // Check if the line ends with an unclosed comment |
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1776 (void)skip_comment(line, FALSE, FALSE, &line_is_comment); |
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1777 newline = alloc(line_len + markerlen + STRLEN(cms) + 1); |
| 7 | 1778 if (newline == NULL) |
| 1779 return; | |
| 1780 STRCPY(newline, line); | |
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1781 // Append the marker to the end of the line |
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1782 if (p == NULL || line_is_comment) |
| 419 | 1783 vim_strncpy(newline + line_len, marker, markerlen); |
| 7 | 1784 else |
| 1785 { | |
| 1786 STRCPY(newline + line_len, cms); | |
| 1787 STRNCPY(newline + line_len + (p - cms), marker, markerlen); | |
| 1788 STRCPY(newline + line_len + (p - cms) + markerlen, p + 2); | |
| 1789 } | |
| 1790 | |
| 1791 ml_replace(lnum, newline, FALSE); | |
| 1792 } | |
| 1793 } | |
| 1794 | |
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1795 // deleteFoldMarkers() {{{2 |
| 7 | 1796 /* |
| 1797 * Delete the markers for a fold, causing it to be deleted. | |
| 1798 */ | |
| 1799 static void | |
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1800 deleteFoldMarkers( |
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1801 fold_T *fp, |
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1802 int recursive, |
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1803 linenr_T lnum_off) // offset for fp->fd_top |
| 7 | 1804 { |
| 1805 int i; | |
| 1806 | |
| 1807 if (recursive) | |
| 1808 for (i = 0; i < fp->fd_nested.ga_len; ++i) | |
| 1809 deleteFoldMarkers((fold_T *)fp->fd_nested.ga_data + i, TRUE, | |
| 1810 lnum_off + fp->fd_top); | |
| 1811 foldDelMarker(fp->fd_top + lnum_off, curwin->w_p_fmr, foldstartmarkerlen); | |
| 1812 foldDelMarker(fp->fd_top + lnum_off + fp->fd_len - 1, | |
| 1813 foldendmarker, foldendmarkerlen); | |
| 1814 } | |
| 1815 | |
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1816 // foldDelMarker() {{{2 |
| 7 | 1817 /* |
| 1818 * Delete marker "marker[markerlen]" at the end of line "lnum". | |
| 1819 * Delete 'commentstring' if it matches. | |
|
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1820 * If the marker is not found, there is no error message. Could be a missing |
| 7 | 1821 * close-marker. |
| 1822 */ | |
| 1823 static void | |
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1824 foldDelMarker(linenr_T lnum, char_u *marker, int markerlen) |
| 7 | 1825 { |
| 1826 char_u *line; | |
| 1827 char_u *newline; | |
| 1828 char_u *p; | |
| 1829 int len; | |
| 1830 char_u *cms = curbuf->b_p_cms; | |
| 1831 char_u *cms2; | |
| 1832 | |
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1833 // end marker may be missing and fold extends below the last line |
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1834 if (lnum > curbuf->b_ml.ml_line_count) |
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1835 return; |
| 7 | 1836 line = ml_get(lnum); |
| 1837 for (p = line; *p != NUL; ++p) | |
| 1838 if (STRNCMP(p, marker, markerlen) == 0) | |
| 1839 { | |
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1840 // Found the marker, include a digit if it's there. |
| 7 | 1841 len = markerlen; |
| 1842 if (VIM_ISDIGIT(p[len])) | |
| 1843 ++len; | |
| 1844 if (*cms != NUL) | |
| 1845 { | |
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1846 // Also delete 'commentstring' if it matches. |
| 7 | 1847 cms2 = (char_u *)strstr((char *)cms, "%s"); |
| 1848 if (p - line >= cms2 - cms | |
| 1849 && STRNCMP(p - (cms2 - cms), cms, cms2 - cms) == 0 | |
| 1850 && STRNCMP(p + len, cms2 + 2, STRLEN(cms2 + 2)) == 0) | |
| 1851 { | |
| 1852 p -= cms2 - cms; | |
| 1853 len += (int)STRLEN(cms) - 2; | |
| 1854 } | |
| 1855 } | |
| 1856 if (u_save(lnum - 1, lnum + 1) == OK) | |
| 1857 { | |
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1858 // Make new line: text-before-marker + text-after-marker |
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1859 newline = alloc(STRLEN(line) - len + 1); |
| 7 | 1860 if (newline != NULL) |
| 1861 { | |
| 1862 STRNCPY(newline, line, p - line); | |
| 1863 STRCPY(newline + (p - line), p + len); | |
| 1864 ml_replace(lnum, newline, FALSE); | |
| 1865 } | |
| 1866 } | |
| 1867 break; | |
| 1868 } | |
| 1869 } | |
| 1870 | |
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1871 // get_foldtext() {{{2 |
| 29 | 1872 /* |
| 1873 * Return the text for a closed fold at line "lnum", with last line "lnume". | |
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1874 * When 'foldtext' isn't set puts the result in "buf[FOLD_TEXT_LEN]". |
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1875 * Otherwise the result is in allocated memory. |
| 29 | 1876 */ |
| 1877 char_u * | |
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1878 get_foldtext( |
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1879 win_T *wp, |
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1880 linenr_T lnum, |
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1881 linenr_T lnume, |
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1882 foldinfo_T *foldinfo, |
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1883 char_u *buf) |
| 29 | 1884 { |
| 1885 char_u *text = NULL; | |
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1886 #ifdef FEAT_EVAL |
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1887 // an error occurred when evaluating 'fdt' setting |
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1888 static int got_fdt_error = FALSE; |
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1889 int save_did_emsg = did_emsg; |
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1890 static win_T *last_wp = NULL; |
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1891 static linenr_T last_lnum = 0; |
| 29 | 1892 |
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1893 if (last_wp != wp || last_wp == NULL |
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1894 || last_lnum > lnum || last_lnum == 0) |
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1895 // window changed, try evaluating foldtext setting once again |
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1896 got_fdt_error = FALSE; |
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1897 |
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1898 if (!got_fdt_error) |
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1899 // a previous error should not abort evaluating 'foldexpr' |
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1900 did_emsg = FALSE; |
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1901 |
| 29 | 1902 if (*wp->w_p_fdt != NUL) |
| 1903 { | |
| 1981 | 1904 char_u dashes[MAX_LEVEL + 2]; |
| 29 | 1905 win_T *save_curwin; |
| 1906 int level; | |
| 1907 char_u *p; | |
| 1908 | |
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1909 // Set "v:foldstart" and "v:foldend". |
| 29 | 1910 set_vim_var_nr(VV_FOLDSTART, lnum); |
| 1911 set_vim_var_nr(VV_FOLDEND, lnume); | |
| 1912 | |
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1913 // Set "v:folddashes" to a string of "level" dashes. |
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1914 // Set "v:foldlevel" to "level". |
| 29 | 1915 level = foldinfo->fi_level; |
| 1981 | 1916 if (level > (int)sizeof(dashes) - 1) |
| 1917 level = (int)sizeof(dashes) - 1; | |
| 29 | 1918 vim_memset(dashes, '-', (size_t)level); |
| 1919 dashes[level] = NUL; | |
| 1920 set_vim_var_string(VV_FOLDDASHES, dashes, -1); | |
| 1921 set_vim_var_nr(VV_FOLDLEVEL, (long)level); | |
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1922 |
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1923 // skip evaluating foldtext on errors |
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1924 if (!got_fdt_error) |
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1925 { |
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1926 save_curwin = curwin; |
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1927 curwin = wp; |
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1928 curbuf = wp->w_buffer; |
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1929 |
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1930 ++emsg_silent; // handle exceptions, but don't display errors |
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1931 text = eval_to_string_safe(wp->w_p_fdt, NULL, |
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1932 was_set_insecurely((char_u *)"foldtext", OPT_LOCAL)); |
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1933 --emsg_silent; |
| 29 | 1934 |
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1935 if (text == NULL || did_emsg) |
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1936 got_fdt_error = TRUE; |
| 29 | 1937 |
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1938 curwin = save_curwin; |
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1939 curbuf = curwin->w_buffer; |
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1940 } |
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1941 last_lnum = lnum; |
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1942 last_wp = wp; |
| 29 | 1943 set_vim_var_string(VV_FOLDDASHES, NULL, -1); |
| 1944 | |
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1945 if (!did_emsg && save_did_emsg) |
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1946 did_emsg = save_did_emsg; |
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1947 |
| 29 | 1948 if (text != NULL) |
| 1949 { | |
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1950 // Replace unprintable characters, if there are any. But |
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1951 // replace a TAB with a space. |
| 29 | 1952 for (p = text; *p != NUL; ++p) |
| 1953 { | |
| 33 | 1954 int len; |
| 1955 | |
| 474 | 1956 if (has_mbyte && (len = (*mb_ptr2len)(p)) > 1) |
| 29 | 1957 { |
| 1958 if (!vim_isprintc((*mb_ptr2char)(p))) | |
| 1959 break; | |
| 1960 p += len - 1; | |
| 1961 } | |
| 1962 else | |
| 1963 if (*p == TAB) | |
| 1964 *p = ' '; | |
| 1965 else if (ptr2cells(p) > 1) | |
| 1966 break; | |
| 1967 } | |
| 1968 if (*p != NUL) | |
| 1969 { | |
| 1970 p = transstr(text); | |
| 1971 vim_free(text); | |
| 1972 text = p; | |
| 1973 } | |
| 1974 } | |
| 1975 } | |
| 1976 if (text == NULL) | |
| 1977 #endif | |
| 1978 { | |
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1979 long count = (long)(lnume - lnum + 1); |
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1980 |
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1981 vim_snprintf((char *)buf, FOLD_TEXT_LEN, |
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1982 NGETTEXT("+--%3ld line folded ", |
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1983 "+--%3ld lines folded ", count), |
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1984 count); |
| 29 | 1985 text = buf; |
| 1986 } | |
| 1987 return text; | |
| 1988 } | |
| 1989 | |
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1990 // foldtext_cleanup() {{{2 |
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1991 #ifdef FEAT_EVAL |
| 7 | 1992 /* |
| 1993 * Remove 'foldmarker' and 'commentstring' from "str" (in-place). | |
| 1994 */ | |
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1995 static void |
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1996 foldtext_cleanup(char_u *str) |
| 7 | 1997 { |
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1998 char_u *cms_start; // first part or the whole comment |
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1999 int cms_slen = 0; // length of cms_start |
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2000 char_u *cms_end; // last part of the comment or NULL |
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2001 int cms_elen = 0; // length of cms_end |
| 7 | 2002 char_u *s; |
| 45 | 2003 char_u *p; |
| 7 | 2004 int len; |
| 2005 int did1 = FALSE; | |
| 2006 int did2 = FALSE; | |
| 2007 | |
|
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2008 // Ignore leading and trailing white space in 'commentstring'. |
| 7 | 2009 cms_start = skipwhite(curbuf->b_p_cms); |
| 835 | 2010 cms_slen = (int)STRLEN(cms_start); |
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2011 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
| 7 | 2012 --cms_slen; |
| 2013 | |
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2014 // locate "%s" in 'commentstring', use the part before and after it. |
| 7 | 2015 cms_end = (char_u *)strstr((char *)cms_start, "%s"); |
| 2016 if (cms_end != NULL) | |
| 2017 { | |
| 835 | 2018 cms_elen = cms_slen - (int)(cms_end - cms_start); |
| 2019 cms_slen = (int)(cms_end - cms_start); | |
| 7 | 2020 |
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2021 // exclude white space before "%s" |
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2022 while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1])) |
| 7 | 2023 --cms_slen; |
| 2024 | |
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2025 // skip "%s" and white space after it |
| 7 | 2026 s = skipwhite(cms_end + 2); |
| 835 | 2027 cms_elen -= (int)(s - cms_end); |
| 7 | 2028 cms_end = s; |
| 2029 } | |
| 2030 parseMarker(curwin); | |
| 2031 | |
| 2032 for (s = str; *s != NUL; ) | |
| 2033 { | |
| 2034 len = 0; | |
| 2035 if (STRNCMP(s, curwin->w_p_fmr, foldstartmarkerlen) == 0) | |
| 45 | 2036 len = foldstartmarkerlen; |
| 2037 else if (STRNCMP(s, foldendmarker, foldendmarkerlen) == 0) | |
| 2038 len = foldendmarkerlen; | |
| 2039 if (len > 0) | |
| 7 | 2040 { |
| 2041 if (VIM_ISDIGIT(s[len])) | |
| 2042 ++len; | |
| 45 | 2043 |
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2044 // May remove 'commentstring' start. Useful when it's a double |
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2045 // quote and we already removed a double quote. |
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2046 for (p = s; p > str && VIM_ISWHITE(p[-1]); --p) |
| 45 | 2047 ; |
| 2048 if (p >= str + cms_slen | |
| 2049 && STRNCMP(p - cms_slen, cms_start, cms_slen) == 0) | |
| 2050 { | |
| 835 | 2051 len += (int)(s - p) + cms_slen; |
| 45 | 2052 s = p - cms_slen; |
| 2053 } | |
| 7 | 2054 } |
| 2055 else if (cms_end != NULL) | |
| 2056 { | |
| 45 | 2057 if (!did1 && cms_slen > 0 && STRNCMP(s, cms_start, cms_slen) == 0) |
| 7 | 2058 { |
| 2059 len = cms_slen; | |
| 2060 did1 = TRUE; | |
| 2061 } | |
| 45 | 2062 else if (!did2 && cms_elen > 0 |
| 2063 && STRNCMP(s, cms_end, cms_elen) == 0) | |
| 7 | 2064 { |
| 2065 len = cms_elen; | |
| 2066 did2 = TRUE; | |
| 2067 } | |
| 2068 } | |
| 2069 if (len != 0) | |
| 2070 { | |
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2071 while (VIM_ISWHITE(s[len])) |
| 7 | 2072 ++len; |
| 1624 | 2073 STRMOVE(s, s + len); |
| 7 | 2074 } |
| 2075 else | |
| 2076 { | |
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2077 MB_PTR_ADV(s); |
| 7 | 2078 } |
| 2079 } | |
| 2080 } | |
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2081 #endif |
| 7 | 2082 |
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2083 // Folding by indent, expr, marker and syntax. {{{1 |
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2084 // Define "fline_T", passed to get fold level for a line. {{{2 |
| 7 | 2085 typedef struct |
| 2086 { | |
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2087 win_T *wp; // window |
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2088 linenr_T lnum; // current line number |
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2089 linenr_T off; // offset between lnum and real line number |
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2090 linenr_T lnum_save; // line nr used by foldUpdateIEMSRecurse() |
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2091 int lvl; // current level (-1 for undefined) |
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2092 int lvl_next; // level used for next line |
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2093 int start; // number of folds that are forced to start at |
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2094 // this line. |
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2095 int end; // level of fold that is forced to end below |
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2096 // this line |
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2097 int had_end; // level of fold that is forced to end above |
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2098 // this line (copy of "end" of prev. line) |
| 7 | 2099 } fline_T; |
| 2100 | |
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2101 // Flag is set when redrawing is needed. |
| 7 | 2102 static int fold_changed; |
| 2103 | |
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2104 // Function declarations. {{{2 |
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2105 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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2106 static int foldInsert(garray_T *gap, int i); |
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2107 static void foldSplit(garray_T *gap, int i, linenr_T top, linenr_T bot); |
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2108 static void foldRemove(garray_T *gap, linenr_T top, linenr_T bot); |
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2109 static void foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2); |
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2110 static void foldlevelIndent(fline_T *flp); |
| 7 | 2111 #ifdef FEAT_DIFF |
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2112 static void foldlevelDiff(fline_T *flp); |
| 7 | 2113 #endif |
|
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2114 static void foldlevelExpr(fline_T *flp); |
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2115 static void foldlevelMarker(fline_T *flp); |
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2116 static void foldlevelSyntax(fline_T *flp); |
| 7 | 2117 |
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2118 // foldUpdateIEMS() {{{2 |
| 7 | 2119 /* |
| 2120 * Update the folding for window "wp", at least from lines "top" to "bot". | |
| 2121 * Return TRUE if any folds did change. | |
| 2122 */ | |
| 2123 static void | |
|
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2124 foldUpdateIEMS(win_T *wp, linenr_T top, linenr_T bot) |
| 7 | 2125 { |
| 2126 linenr_T start; | |
| 2127 linenr_T end; | |
| 2128 fline_T fline; | |
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2129 void (*getlevel)(fline_T *); |
| 7 | 2130 int level; |
| 2131 fold_T *fp; | |
| 2132 | |
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2133 // Avoid problems when being called recursively. |
| 7 | 2134 if (invalid_top != (linenr_T)0) |
| 2135 return; | |
| 2136 | |
| 2137 if (wp->w_foldinvalid) | |
| 2138 { | |
|
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2139 // Need to update all folds. |
| 7 | 2140 top = 1; |
| 2141 bot = wp->w_buffer->b_ml.ml_line_count; | |
| 2142 wp->w_foldinvalid = FALSE; | |
| 2143 | |
|
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|
2144 // Mark all folds a maybe-small. |
| 7 | 2145 setSmallMaybe(&wp->w_folds); |
| 2146 } | |
| 2147 | |
| 2148 #ifdef FEAT_DIFF | |
|
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2149 // add the context for "diff" folding |
| 7 | 2150 if (foldmethodIsDiff(wp)) |
| 2151 { | |
| 2152 if (top > diff_context) | |
| 2153 top -= diff_context; | |
| 2154 else | |
| 2155 top = 1; | |
| 2156 bot += diff_context; | |
| 2157 } | |
| 2158 #endif | |
| 2159 | |
|
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2160 // When deleting lines at the end of the buffer "top" can be past the end |
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2161 // of the buffer. |
| 7 | 2162 if (top > wp->w_buffer->b_ml.ml_line_count) |
| 2163 top = wp->w_buffer->b_ml.ml_line_count; | |
| 2164 | |
| 2165 fold_changed = FALSE; | |
| 2166 fline.wp = wp; | |
| 2167 fline.off = 0; | |
| 2168 fline.lvl = 0; | |
| 2169 fline.lvl_next = -1; | |
| 2170 fline.start = 0; | |
| 2171 fline.end = MAX_LEVEL + 1; | |
| 2172 fline.had_end = MAX_LEVEL + 1; | |
| 2173 | |
| 2174 invalid_top = top; | |
| 2175 invalid_bot = bot; | |
| 2176 | |
| 2177 if (foldmethodIsMarker(wp)) | |
| 2178 { | |
| 2179 getlevel = foldlevelMarker; | |
| 2180 | |
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2181 // Init marker variables to speed up foldlevelMarker(). |
| 7 | 2182 parseMarker(wp); |
| 2183 | |
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2184 // Need to get the level of the line above top, it is used if there is |
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2185 // no marker at the top. |
| 7 | 2186 if (top > 1) |
| 2187 { | |
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2188 // Get the fold level at top - 1. |
| 7 | 2189 level = foldLevelWin(wp, top - 1); |
| 2190 | |
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2191 // The fold may end just above the top, check for that. |
| 7 | 2192 fline.lnum = top - 1; |
| 2193 fline.lvl = level; | |
| 2194 getlevel(&fline); | |
| 2195 | |
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2196 // If a fold started here, we already had the level, if it stops |
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2197 // here, we need to use lvl_next. Could also start and end a fold |
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2198 // in the same line. |
| 7 | 2199 if (fline.lvl > level) |
| 2200 fline.lvl = level - (fline.lvl - fline.lvl_next); | |
| 2201 else | |
| 2202 fline.lvl = fline.lvl_next; | |
| 2203 } | |
| 2204 fline.lnum = top; | |
| 2205 getlevel(&fline); | |
| 2206 } | |
| 2207 else | |
| 2208 { | |
| 2209 fline.lnum = top; | |
| 2210 if (foldmethodIsExpr(wp)) | |
| 2211 { | |
| 2212 getlevel = foldlevelExpr; | |
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2213 // start one line back, because a "<1" may indicate the end of a |
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2214 // fold in the topline |
| 7 | 2215 if (top > 1) |
| 2216 --fline.lnum; | |
| 2217 } | |
| 2218 else if (foldmethodIsSyntax(wp)) | |
| 2219 getlevel = foldlevelSyntax; | |
| 2220 #ifdef FEAT_DIFF | |
| 2221 else if (foldmethodIsDiff(wp)) | |
| 2222 getlevel = foldlevelDiff; | |
| 2223 #endif | |
| 2224 else | |
| 2225 getlevel = foldlevelIndent; | |
| 2226 | |
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2227 // Backup to a line for which the fold level is defined. Since it's |
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2228 // always defined for line one, we will stop there. |
| 7 | 2229 fline.lvl = -1; |
| 2230 for ( ; !got_int; --fline.lnum) | |
| 2231 { | |
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2232 // Reset lvl_next each time, because it will be set to a value for |
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2233 // the next line, but we search backwards here. |
| 7 | 2234 fline.lvl_next = -1; |
| 2235 getlevel(&fline); | |
| 2236 if (fline.lvl >= 0) | |
| 2237 break; | |
| 2238 } | |
| 2239 } | |
| 2240 | |
| 1977 | 2241 /* |
| 2242 * If folding is defined by the syntax, it is possible that a change in | |
| 2243 * one line will cause all sub-folds of the current fold to change (e.g., | |
| 2244 * closing a C-style comment can cause folds in the subsequent lines to | |
| 2245 * appear). To take that into account we should adjust the value of "bot" | |
| 2246 * to point to the end of the current fold: | |
| 2247 */ | |
| 2248 if (foldlevelSyntax == getlevel) | |
| 2249 { | |
| 2250 garray_T *gap = &wp->w_folds; | |
|
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|
2251 fold_T *fpn = NULL; |
| 1977 | 2252 int current_fdl = 0; |
| 2253 linenr_T fold_start_lnum = 0; | |
| 2254 linenr_T lnum_rel = fline.lnum; | |
| 2255 | |
| 2256 while (current_fdl < fline.lvl) | |
| 2257 { | |
|
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|
2258 if (!foldFind(gap, lnum_rel, &fpn)) |
| 1977 | 2259 break; |
| 2260 ++current_fdl; | |
| 2261 | |
|
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|
2262 fold_start_lnum += fpn->fd_top; |
|
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|
2263 gap = &fpn->fd_nested; |
|
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|
2264 lnum_rel -= fpn->fd_top; |
| 1977 | 2265 } |
|
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|
2266 if (fpn != NULL && current_fdl == fline.lvl) |
| 1977 | 2267 { |
|
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|
2268 linenr_T fold_end_lnum = fold_start_lnum + fpn->fd_len; |
| 1977 | 2269 |
| 2270 if (fold_end_lnum > bot) | |
| 2271 bot = fold_end_lnum; | |
| 2272 } | |
| 2273 } | |
| 2274 | |
| 7 | 2275 start = fline.lnum; |
| 2276 end = bot; | |
|
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|
2277 // Do at least one line. |
| 7 | 2278 if (start > end && end < wp->w_buffer->b_ml.ml_line_count) |
| 2279 end = start; | |
| 2280 while (!got_int) | |
| 2281 { | |
|
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|
2282 // Always stop at the end of the file ("end" can be past the end of |
|
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|
2283 // the file). |
| 7 | 2284 if (fline.lnum > wp->w_buffer->b_ml.ml_line_count) |
| 2285 break; | |
| 2286 if (fline.lnum > end) | |
| 2287 { | |
|
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|
2288 // For "marker", "expr" and "syntax" methods: If a change caused |
|
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|
2289 // a fold to be removed, we need to continue at least until where |
|
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|
2290 // it ended. |
| 7 | 2291 if (getlevel != foldlevelMarker |
| 2292 && getlevel != foldlevelSyntax | |
| 2293 && getlevel != foldlevelExpr) | |
| 2294 break; | |
| 2295 if ((start <= end | |
| 2296 && foldFind(&wp->w_folds, end, &fp) | |
| 2297 && fp->fd_top + fp->fd_len - 1 > end) | |
| 2298 || (fline.lvl == 0 | |
| 2299 && foldFind(&wp->w_folds, fline.lnum, &fp) | |
| 2300 && fp->fd_top < fline.lnum)) | |
| 2301 end = fp->fd_top + fp->fd_len - 1; | |
| 2302 else if (getlevel == foldlevelSyntax | |
| 2303 && foldLevelWin(wp, fline.lnum) != fline.lvl) | |
|
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|
2304 // For "syntax" method: Compare the foldlevel that the syntax |
|
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|
2305 // tells us to the foldlevel from the existing folds. If they |
|
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|
2306 // don't match continue updating folds. |
| 7 | 2307 end = fline.lnum; |
| 2308 else | |
| 2309 break; | |
| 2310 } | |
| 2311 | |
|
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|
2312 // A level 1 fold starts at a line with foldlevel > 0. |
| 7 | 2313 if (fline.lvl > 0) |
| 2314 { | |
| 2315 invalid_top = fline.lnum; | |
| 2316 invalid_bot = end; | |
| 2317 end = foldUpdateIEMSRecurse(&wp->w_folds, | |
| 2318 1, start, &fline, getlevel, end, FD_LEVEL); | |
| 2319 start = fline.lnum; | |
| 2320 } | |
| 2321 else | |
| 2322 { | |
| 2323 if (fline.lnum == wp->w_buffer->b_ml.ml_line_count) | |
| 2324 break; | |
| 2325 ++fline.lnum; | |
| 2326 fline.lvl = fline.lvl_next; | |
| 2327 getlevel(&fline); | |
| 2328 } | |
| 2329 } | |
| 2330 | |
|
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|
2331 // There can't be any folds from start until end now. |
| 7 | 2332 foldRemove(&wp->w_folds, start, end); |
| 2333 | |
|
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|
2334 // If some fold changed, need to redraw and position cursor. |
| 7 | 2335 if (fold_changed && wp->w_p_fen) |
| 1554 | 2336 changed_window_setting_win(wp); |
| 7 | 2337 |
|
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|
2338 // If we updated folds past "bot", need to redraw more lines. Don't do |
|
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changeset
|
2339 // this in other situations, the changed lines will be redrawn anyway and |
|
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changeset
|
2340 // this method can cause the whole window to be updated. |
| 7 | 2341 if (end != bot) |
| 2342 { | |
| 2343 if (wp->w_redraw_top == 0 || wp->w_redraw_top > top) | |
| 2344 wp->w_redraw_top = top; | |
| 2345 if (wp->w_redraw_bot < end) | |
| 2346 wp->w_redraw_bot = end; | |
| 2347 } | |
| 2348 | |
| 2349 invalid_top = (linenr_T)0; | |
| 2350 } | |
| 2351 | |
|
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|
2352 // foldUpdateIEMSRecurse() {{{2 |
| 7 | 2353 /* |
| 2354 * Update a fold that starts at "flp->lnum". At this line there is always a | |
| 2355 * valid foldlevel, and its level >= "level". | |
| 2356 * "flp" is valid for "flp->lnum" when called and it's valid when returning. | |
| 2357 * "flp->lnum" is set to the lnum just below the fold, if it ends before | |
| 2358 * "bot", it's "bot" plus one if the fold continues and it's bigger when using | |
| 2359 * the marker method and a text change made following folds to change. | |
| 2360 * When returning, "flp->lnum_save" is the line number that was used to get | |
| 2361 * the level when the level at "flp->lnum" is invalid. | |
| 2362 * Remove any folds from "startlnum" up to here at this level. | |
| 2363 * Recursively update nested folds. | |
| 2364 * Below line "bot" there are no changes in the text. | |
| 2365 * "flp->lnum", "flp->lnum_save" and "bot" are relative to the start of the | |
| 2366 * outer fold. | |
| 2367 * "flp->off" is the offset to the real line number in the buffer. | |
| 2368 * | |
| 2369 * All this would be a lot simpler if all folds in the range would be deleted | |
| 1698 | 2370 * and then created again. But we would lose all information about the |
| 7 | 2371 * folds, even when making changes that don't affect the folding (e.g. "vj~"). |
| 2372 * | |
| 2373 * Returns bot, which may have been increased for lines that also need to be | |
| 2374 * updated as a result of a detected change in the fold. | |
| 2375 */ | |
| 2376 static linenr_T | |
|
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changeset
|
2377 foldUpdateIEMSRecurse( |
|
81794242a275
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diff
changeset
|
2378 garray_T *gap, |
|
81794242a275
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diff
changeset
|
2379 int level, |
|
81794242a275
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diff
changeset
|
2380 linenr_T startlnum, |
|
81794242a275
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diff
changeset
|
2381 fline_T *flp, |
|
81794242a275
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diff
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|
2382 void (*getlevel)(fline_T *), |
|
81794242a275
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diff
changeset
|
2383 linenr_T bot, |
|
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|
2384 int topflags) // flags used by containing fold |
| 7 | 2385 { |
| 2386 linenr_T ll; | |
| 2387 fold_T *fp = NULL; | |
| 2388 fold_T *fp2; | |
| 2389 int lvl = level; | |
| 2390 linenr_T startlnum2 = startlnum; | |
|
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|
2391 linenr_T firstlnum = flp->lnum; // first lnum we got |
| 7 | 2392 int i; |
| 2393 int finish = FALSE; | |
| 2394 linenr_T linecount = flp->wp->w_buffer->b_ml.ml_line_count - flp->off; | |
| 2395 int concat; | |
| 2396 | |
| 2397 /* | |
| 2398 * If using the marker method, the start line is not the start of a fold | |
| 2399 * at the level we're dealing with and the level is non-zero, we must use | |
| 2400 * the previous fold. But ignore a fold that starts at or below | |
| 2401 * startlnum, it must be deleted. | |
| 2402 */ | |
| 2403 if (getlevel == foldlevelMarker && flp->start <= flp->lvl - level | |
| 2404 && flp->lvl > 0) | |
| 2405 { | |
| 7009 | 2406 (void)foldFind(gap, startlnum - 1, &fp); |
| 7 | 2407 if (fp >= ((fold_T *)gap->ga_data) + gap->ga_len |
| 2408 || fp->fd_top >= startlnum) | |
| 2409 fp = NULL; | |
| 2410 } | |
| 2411 | |
| 2412 /* | |
| 2413 * Loop over all lines in this fold, or until "bot" is hit. | |
| 2414 * Handle nested folds inside of this fold. | |
| 2415 * "flp->lnum" is the current line. When finding the end of the fold, it | |
| 2416 * is just below the end of the fold. | |
| 2417 * "*flp" contains the level of the line "flp->lnum" or a following one if | |
| 2418 * there are lines with an invalid fold level. "flp->lnum_save" is the | |
| 2419 * line number that was used to get the fold level (below "flp->lnum" when | |
| 2420 * it has an invalid fold level). When called the fold level is always | |
| 2421 * valid, thus "flp->lnum_save" is equal to "flp->lnum". | |
| 2422 */ | |
| 2423 flp->lnum_save = flp->lnum; | |
| 2424 while (!got_int) | |
| 2425 { | |
|
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|
2426 // Updating folds can be slow, check for CTRL-C. |
| 7 | 2427 line_breakcheck(); |
| 2428 | |
|
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|
2429 // Set "lvl" to the level of line "flp->lnum". When flp->start is set |
|
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|
2430 // and after the first line of the fold, set the level to zero to |
|
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|
2431 // force the fold to end. Do the same when had_end is set: Previous |
|
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|
2432 // line was marked as end of a fold. |
| 7 | 2433 lvl = flp->lvl; |
| 2434 if (lvl > MAX_LEVEL) | |
| 2435 lvl = MAX_LEVEL; | |
| 2436 if (flp->lnum > firstlnum | |
| 2437 && (level > lvl - flp->start || level >= flp->had_end)) | |
| 2438 lvl = 0; | |
| 2439 | |
| 2440 if (flp->lnum > bot && !finish && fp != NULL) | |
| 2441 { | |
|
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|
2442 // For "marker" and "syntax" methods: |
|
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|
2443 // - If a change caused a nested fold to be removed, we need to |
|
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|
2444 // delete it and continue at least until where it ended. |
|
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|
2445 // - If a change caused a nested fold to be created, or this fold |
|
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|
2446 // to continue below its original end, need to finish this fold. |
| 7 | 2447 if (getlevel != foldlevelMarker |
| 2448 && getlevel != foldlevelExpr | |
| 2449 && getlevel != foldlevelSyntax) | |
| 2450 break; | |
| 2451 i = 0; | |
| 2452 fp2 = fp; | |
| 2453 if (lvl >= level) | |
| 2454 { | |
|
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|
2455 // Compute how deep the folds currently are, if it's deeper |
|
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|
2456 // than "lvl" then some must be deleted, need to update |
|
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|
2457 // at least one nested fold. |
| 7 | 2458 ll = flp->lnum - fp->fd_top; |
| 2459 while (foldFind(&fp2->fd_nested, ll, &fp2)) | |
| 2460 { | |
| 2461 ++i; | |
| 2462 ll -= fp2->fd_top; | |
| 2463 } | |
| 2464 } | |
| 2465 if (lvl < level + i) | |
| 2466 { | |
| 7009 | 2467 (void)foldFind(&fp->fd_nested, flp->lnum - fp->fd_top, &fp2); |
| 7 | 2468 if (fp2 != NULL) |
| 2469 bot = fp2->fd_top + fp2->fd_len - 1 + fp->fd_top; | |
| 2470 } | |
| 2471 else if (fp->fd_top + fp->fd_len <= flp->lnum && lvl >= level) | |
| 2472 finish = TRUE; | |
| 2473 else | |
| 2474 break; | |
| 2475 } | |
| 2476 | |
|
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|
2477 // At the start of the first nested fold and at the end of the current |
|
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2478 // fold: check if existing folds at this level, before the current |
|
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|
2479 // one, need to be deleted or truncated. |
| 7 | 2480 if (fp == NULL |
| 2481 && (lvl != level | |
| 2482 || flp->lnum_save >= bot | |
| 2483 || flp->start != 0 | |
| 2484 || flp->had_end <= MAX_LEVEL | |
| 2485 || flp->lnum == linecount)) | |
| 2486 { | |
| 2487 /* | |
| 2488 * Remove or update folds that have lines between startlnum and | |
| 2489 * firstlnum. | |
| 2490 */ | |
| 2491 while (!got_int) | |
| 2492 { | |
|
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2493 // set concat to 1 if it's allowed to concatenated this fold |
|
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|
2494 // with a previous one that touches it. |
| 7 | 2495 if (flp->start != 0 || flp->had_end <= MAX_LEVEL) |
| 2496 concat = 0; | |
| 2497 else | |
| 2498 concat = 1; | |
| 2499 | |
|
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|
2500 // Find an existing fold to re-use. Preferably one that |
|
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|
2501 // includes startlnum, otherwise one that ends just before |
|
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|
2502 // startlnum or starts after it. |
| 7 | 2503 if (foldFind(gap, startlnum, &fp) |
| 2504 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
| 2505 && fp->fd_top <= firstlnum) | |
| 2506 || foldFind(gap, firstlnum - concat, &fp) | |
| 2507 || (fp < ((fold_T *)gap->ga_data) + gap->ga_len | |
| 2508 && ((lvl < level && fp->fd_top < flp->lnum) | |
| 2509 || (lvl >= level | |
| 2510 && fp->fd_top <= flp->lnum_save)))) | |
| 2511 { | |
| 2512 if (fp->fd_top + fp->fd_len + concat > firstlnum) | |
| 2513 { | |
|
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|
2514 // Use existing fold for the new fold. If it starts |
|
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2515 // before where we started looking, extend it. If it |
|
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2516 // starts at another line, update nested folds to keep |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2517 // their position, compensating for the new fd_top. |
|
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diff
changeset
|
2518 if (fp->fd_top == firstlnum) |
|
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diff
changeset
|
2519 { |
|
18779
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|
2520 // have found a fold beginning where we want |
|
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diff
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|
2521 } |
|
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diff
changeset
|
2522 else if (fp->fd_top >= startlnum) |
| 7 | 2523 { |
| 2524 if (fp->fd_top > firstlnum) | |
|
18779
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changeset
|
2525 // like lines are inserted |
| 7 | 2526 foldMarkAdjustRecurse(&fp->fd_nested, |
| 2527 (linenr_T)0, (linenr_T)MAXLNUM, | |
| 2528 (long)(fp->fd_top - firstlnum), 0L); | |
| 2529 else | |
|
18779
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changeset
|
2530 // like lines are deleted |
| 7 | 2531 foldMarkAdjustRecurse(&fp->fd_nested, |
| 2532 (linenr_T)0, | |
| 2533 (long)(firstlnum - fp->fd_top - 1), | |
| 2534 (linenr_T)MAXLNUM, | |
| 2535 (long)(fp->fd_top - firstlnum)); | |
| 2536 fp->fd_len += fp->fd_top - firstlnum; | |
| 2537 fp->fd_top = firstlnum; | |
| 2538 fold_changed = TRUE; | |
| 2539 } | |
|
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diff
changeset
|
2540 else if ((flp->start != 0 && lvl == level) |
|
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|
2541 || firstlnum != startlnum) |
| 7 | 2542 { |
|
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|
2543 linenr_T breakstart; |
|
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changeset
|
2544 linenr_T breakend; |
|
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changeset
|
2545 |
|
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changeset
|
2546 /* |
|
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changeset
|
2547 * Before there was a fold spanning from above |
|
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changeset
|
2548 * startlnum to below firstlnum. This fold is valid |
|
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|
2549 * above startlnum (because we are not updating |
|
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|
2550 * that range), but there should now be a break in |
|
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|
2551 * it. |
|
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|
2552 * If the break is because we are now forced to |
|
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|
2553 * start a new fold at the level "level" at line |
|
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|
2554 * fline->lnum, then we need to split the fold at |
|
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|
2555 * fline->lnum. |
|
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|
2556 * If the break is because the range |
|
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|
2557 * [startlnum, firstlnum) is now at a lower indent |
|
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|
2558 * than "level", we need to split the fold in this |
|
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|
2559 * range. |
|
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|
2560 * Any splits have to be done recursively. |
|
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|
2561 */ |
|
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|
2562 if (firstlnum != startlnum) |
|
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|
2563 { |
|
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|
2564 breakstart = startlnum; |
|
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|
2565 breakend = firstlnum; |
|
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|
2566 } |
|
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|
2567 else |
|
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|
2568 { |
|
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|
2569 breakstart = flp->lnum; |
|
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|
2570 breakend = flp->lnum; |
|
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|
2571 } |
|
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|
2572 foldRemove(&fp->fd_nested, breakstart - fp->fd_top, |
|
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|
2573 breakend - fp->fd_top); |
| 7 | 2574 i = (int)(fp - (fold_T *)gap->ga_data); |
|
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|
2575 foldSplit(gap, i, breakstart, breakend - 1); |
| 7 | 2576 fp = (fold_T *)gap->ga_data + i + 1; |
|
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|
2577 |
|
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|
2578 // If using the "marker" or "syntax" method, we |
|
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|
2579 // need to continue until the end of the fold is |
|
8f05b3cf8557
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|
2580 // found. |
| 7 | 2581 if (getlevel == foldlevelMarker |
| 2582 || getlevel == foldlevelExpr | |
| 2583 || getlevel == foldlevelSyntax) | |
| 2584 finish = TRUE; | |
| 2585 } | |
|
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|
2586 |
|
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|
2587 if (fp->fd_top == startlnum && concat) |
|
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|
2588 { |
|
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|
2589 i = (int)(fp - (fold_T *)gap->ga_data); |
|
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|
2590 if (i != 0) |
|
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changeset
|
2591 { |
|
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changeset
|
2592 fp2 = fp - 1; |
|
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changeset
|
2593 if (fp2->fd_top + fp2->fd_len == fp->fd_top) |
|
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|
2594 { |
|
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changeset
|
2595 foldMerge(fp2, gap, fp); |
|
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changeset
|
2596 fp = fp2; |
|
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changeset
|
2597 } |
|
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changeset
|
2598 } |
|
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changeset
|
2599 } |
| 7 | 2600 break; |
| 2601 } | |
| 2602 if (fp->fd_top >= startlnum) | |
| 2603 { | |
|
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changeset
|
2604 // A fold that starts at or after startlnum and stops |
|
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changeset
|
2605 // before the new fold must be deleted. Continue |
|
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changeset
|
2606 // looking for the next one. |
| 7 | 2607 deleteFoldEntry(gap, |
| 2608 (int)(fp - (fold_T *)gap->ga_data), TRUE); | |
| 2609 } | |
| 2610 else | |
| 2611 { | |
|
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changeset
|
2612 // A fold has some lines above startlnum, truncate it |
|
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changeset
|
2613 // to stop just above startlnum. |
| 7 | 2614 fp->fd_len = startlnum - fp->fd_top; |
| 2615 foldMarkAdjustRecurse(&fp->fd_nested, | |
| 2616 (linenr_T)fp->fd_len, (linenr_T)MAXLNUM, | |
| 2617 (linenr_T)MAXLNUM, 0L); | |
| 2618 fold_changed = TRUE; | |
| 2619 } | |
| 2620 } | |
| 2621 else | |
| 2622 { | |
|
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changeset
|
2623 // Insert new fold. Careful: ga_data may be NULL and it |
|
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changeset
|
2624 // may change! |
| 7 | 2625 i = (int)(fp - (fold_T *)gap->ga_data); |
| 2626 if (foldInsert(gap, i) != OK) | |
| 2627 return bot; | |
| 2628 fp = (fold_T *)gap->ga_data + i; | |
|
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changeset
|
2629 // The new fold continues until bot, unless we find the |
|
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changeset
|
2630 // end earlier. |
| 7 | 2631 fp->fd_top = firstlnum; |
| 2632 fp->fd_len = bot - firstlnum + 1; | |
|
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changeset
|
2633 // When the containing fold is open, the new fold is open. |
|
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changeset
|
2634 // The new fold is closed if the fold above it is closed. |
|
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changeset
|
2635 // The first fold depends on the containing fold. |
| 7 | 2636 if (topflags == FD_OPEN) |
| 2637 { | |
| 2638 flp->wp->w_fold_manual = TRUE; | |
| 2639 fp->fd_flags = FD_OPEN; | |
| 2640 } | |
| 2641 else if (i <= 0) | |
| 2642 { | |
| 2643 fp->fd_flags = topflags; | |
| 2644 if (topflags != FD_LEVEL) | |
| 2645 flp->wp->w_fold_manual = TRUE; | |
| 2646 } | |
| 2647 else | |
| 2648 fp->fd_flags = (fp - 1)->fd_flags; | |
| 2649 fp->fd_small = MAYBE; | |
|
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changeset
|
2650 // If using the "marker", "expr" or "syntax" method, we |
|
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changeset
|
2651 // need to continue until the end of the fold is found. |
| 7 | 2652 if (getlevel == foldlevelMarker |
| 2653 || getlevel == foldlevelExpr | |
| 2654 || getlevel == foldlevelSyntax) | |
| 2655 finish = TRUE; | |
| 2656 fold_changed = TRUE; | |
| 2657 break; | |
| 2658 } | |
| 2659 } | |
| 2660 } | |
| 2661 | |
| 2662 if (lvl < level || flp->lnum > linecount) | |
| 2663 { | |
| 2664 /* | |
| 2665 * Found a line with a lower foldlevel, this fold ends just above | |
| 2666 * "flp->lnum". | |
| 2667 */ | |
| 2668 break; | |
| 2669 } | |
| 2670 | |
| 2671 /* | |
| 2672 * The fold includes the line "flp->lnum" and "flp->lnum_save". | |
| 840 | 2673 * Check "fp" for safety. |
| 7 | 2674 */ |
| 840 | 2675 if (lvl > level && fp != NULL) |
| 7 | 2676 { |
| 2677 /* | |
| 2678 * There is a nested fold, handle it recursively. | |
| 2679 */ | |
|
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changeset
|
2680 // At least do one line (can happen when finish is TRUE). |
| 7 | 2681 if (bot < flp->lnum) |
| 2682 bot = flp->lnum; | |
| 2683 | |
|
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changeset
|
2684 // Line numbers in the nested fold are relative to the start of |
|
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changeset
|
2685 // this fold. |
| 7 | 2686 flp->lnum = flp->lnum_save - fp->fd_top; |
| 2687 flp->off += fp->fd_top; | |
| 2688 i = (int)(fp - (fold_T *)gap->ga_data); | |
| 2689 bot = foldUpdateIEMSRecurse(&fp->fd_nested, level + 1, | |
| 2690 startlnum2 - fp->fd_top, flp, getlevel, | |
| 2691 bot - fp->fd_top, fp->fd_flags); | |
| 2692 fp = (fold_T *)gap->ga_data + i; | |
| 2693 flp->lnum += fp->fd_top; | |
| 2694 flp->lnum_save += fp->fd_top; | |
| 2695 flp->off -= fp->fd_top; | |
| 2696 bot += fp->fd_top; | |
| 2697 startlnum2 = flp->lnum; | |
| 2698 | |
|
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changeset
|
2699 // This fold may end at the same line, don't incr. flp->lnum. |
| 7 | 2700 } |
| 2701 else | |
| 2702 { | |
| 2703 /* | |
| 2704 * Get the level of the next line, then continue the loop to check | |
| 2705 * if it ends there. | |
| 2706 * Skip over undefined lines, to find the foldlevel after it. | |
| 2707 * For the last line in the file the foldlevel is always valid. | |
| 2708 */ | |
| 2709 flp->lnum = flp->lnum_save; | |
| 2710 ll = flp->lnum + 1; | |
| 2711 while (!got_int) | |
| 2712 { | |
|
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changeset
|
2713 // Make the previous level available to foldlevel(). |
| 7 | 2714 prev_lnum = flp->lnum; |
| 2715 prev_lnum_lvl = flp->lvl; | |
| 2716 | |
| 2717 if (++flp->lnum > linecount) | |
| 2718 break; | |
| 2719 flp->lvl = flp->lvl_next; | |
| 2720 getlevel(flp); | |
| 2721 if (flp->lvl >= 0 || flp->had_end <= MAX_LEVEL) | |
| 2722 break; | |
| 2723 } | |
| 2724 prev_lnum = 0; | |
| 2725 if (flp->lnum > linecount) | |
| 2726 break; | |
| 2727 | |
|
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changeset
|
2728 // leave flp->lnum_save to lnum of the line that was used to get |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2729 // the level, flp->lnum to the lnum of the next line. |
| 7 | 2730 flp->lnum_save = flp->lnum; |
| 2731 flp->lnum = ll; | |
| 2732 } | |
| 2733 } | |
| 2734 | |
|
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diff
changeset
|
2735 if (fp == NULL) // only happens when got_int is set |
| 7 | 2736 return bot; |
| 2737 | |
| 2738 /* | |
| 2739 * Get here when: | |
| 2740 * lvl < level: the folds ends just above "flp->lnum" | |
| 2741 * lvl >= level: fold continues below "bot" | |
| 2742 */ | |
| 2743 | |
|
17787
92e0996e1cb8
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Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2744 // Current fold at least extends until lnum. |
| 7 | 2745 if (fp->fd_len < flp->lnum - fp->fd_top) |
| 2746 { | |
| 2747 fp->fd_len = flp->lnum - fp->fd_top; | |
| 1513 | 2748 fp->fd_small = MAYBE; |
| 7 | 2749 fold_changed = TRUE; |
| 2750 } | |
|
17787
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Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2751 else if (fp->fd_top + fp->fd_len > linecount) |
|
92e0996e1cb8
patch 8.1.1890: ml_get error when deleting fold marker
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2752 // running into the end of the buffer (deleted last line) |
|
92e0996e1cb8
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Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
2753 fp->fd_len = linecount - fp->fd_top + 1; |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2754 |
|
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Bram Moolenaar <Bram@vim.org>
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16764
diff
changeset
|
2755 // Delete contained folds from the end of the last one found until where |
|
92e0996e1cb8
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16764
diff
changeset
|
2756 // we stopped looking. |
| 7 | 2757 foldRemove(&fp->fd_nested, startlnum2 - fp->fd_top, |
| 2758 flp->lnum - 1 - fp->fd_top); | |
| 2759 | |
| 2760 if (lvl < level) | |
| 2761 { | |
|
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parents:
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diff
changeset
|
2762 // End of fold found, update the length when it got shorter. |
| 7 | 2763 if (fp->fd_len != flp->lnum - fp->fd_top) |
| 2764 { | |
|
11234
8c153d400bf4
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Christian Brabandt <cb@256bit.org>
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11165
diff
changeset
|
2765 if (fp->fd_top + fp->fd_len - 1 > bot) |
| 7 | 2766 { |
|
18779
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parents:
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diff
changeset
|
2767 // fold continued below bot |
| 7 | 2768 if (getlevel == foldlevelMarker |
| 2769 || getlevel == foldlevelExpr | |
| 2770 || getlevel == foldlevelSyntax) | |
| 2771 { | |
|
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changeset
|
2772 // marker method: truncate the fold and make sure the |
|
8f05b3cf8557
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parents:
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diff
changeset
|
2773 // previously included lines are processed again |
| 7 | 2774 bot = fp->fd_top + fp->fd_len - 1; |
| 2775 fp->fd_len = flp->lnum - fp->fd_top; | |
| 2776 } | |
| 2777 else | |
| 2778 { | |
|
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diff
changeset
|
2779 // indent or expr method: split fold to create a new one |
|
8f05b3cf8557
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parents:
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diff
changeset
|
2780 // below bot |
| 7 | 2781 i = (int)(fp - (fold_T *)gap->ga_data); |
| 2782 foldSplit(gap, i, flp->lnum, bot); | |
| 2783 fp = (fold_T *)gap->ga_data + i; | |
| 2784 } | |
| 2785 } | |
| 2786 else | |
| 2787 fp->fd_len = flp->lnum - fp->fd_top; | |
| 2788 fold_changed = TRUE; | |
| 2789 } | |
| 2790 } | |
| 2791 | |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2792 // delete following folds that end before the current line |
| 7 | 2793 for (;;) |
| 2794 { | |
| 2795 fp2 = fp + 1; | |
| 2796 if (fp2 >= (fold_T *)gap->ga_data + gap->ga_len | |
| 2797 || fp2->fd_top > flp->lnum) | |
| 2798 break; | |
| 2799 if (fp2->fd_top + fp2->fd_len > flp->lnum) | |
| 2800 { | |
| 2801 if (fp2->fd_top < flp->lnum) | |
| 2802 { | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2803 // Make fold that includes lnum start at lnum. |
| 7 | 2804 foldMarkAdjustRecurse(&fp2->fd_nested, |
| 2805 (linenr_T)0, (long)(flp->lnum - fp2->fd_top - 1), | |
| 2806 (linenr_T)MAXLNUM, (long)(fp2->fd_top - flp->lnum)); | |
| 2807 fp2->fd_len -= flp->lnum - fp2->fd_top; | |
| 2808 fp2->fd_top = flp->lnum; | |
| 2809 fold_changed = TRUE; | |
| 2810 } | |
| 2811 | |
| 2812 if (lvl >= level) | |
| 2813 { | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2814 // merge new fold with existing fold that follows |
| 7 | 2815 foldMerge(fp, gap, fp2); |
| 2816 } | |
| 2817 break; | |
| 2818 } | |
| 2819 fold_changed = TRUE; | |
| 2820 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
| 2821 } | |
| 2822 | |
|
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diff
changeset
|
2823 // Need to redraw the lines we inspected, which might be further down than |
|
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2824 // was asked for. |
| 7 | 2825 if (bot < flp->lnum - 1) |
| 2826 bot = flp->lnum - 1; | |
| 2827 | |
| 2828 return bot; | |
| 2829 } | |
| 2830 | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2831 // foldInsert() {{{2 |
| 7 | 2832 /* |
| 2833 * Insert a new fold in "gap" at position "i". | |
| 2834 * Returns OK for success, FAIL for failure. | |
| 2835 */ | |
| 2836 static int | |
|
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2837 foldInsert(garray_T *gap, int i) |
| 7 | 2838 { |
| 2839 fold_T *fp; | |
| 2840 | |
| 2841 if (ga_grow(gap, 1) != OK) | |
| 2842 return FAIL; | |
| 2843 fp = (fold_T *)gap->ga_data + i; | |
| 2844 if (i < gap->ga_len) | |
| 2845 mch_memmove(fp + 1, fp, sizeof(fold_T) * (gap->ga_len - i)); | |
| 2846 ++gap->ga_len; | |
| 2847 ga_init2(&fp->fd_nested, (int)sizeof(fold_T), 10); | |
| 2848 return OK; | |
| 2849 } | |
| 2850 | |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2851 // foldSplit() {{{2 |
| 7 | 2852 /* |
| 2853 * Split the "i"th fold in "gap", which starts before "top" and ends below | |
| 2854 * "bot" in two pieces, one ending above "top" and the other starting below | |
| 2855 * "bot". | |
| 2856 * The caller must first have taken care of any nested folds from "top" to | |
| 2857 * "bot"! | |
| 2858 */ | |
| 2859 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2860 foldSplit( |
|
81794242a275
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2861 garray_T *gap, |
|
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2862 int i, |
|
81794242a275
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Christian Brabandt <cb@256bit.org>
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7807
diff
changeset
|
2863 linenr_T top, |
|
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2864 linenr_T bot) |
| 7 | 2865 { |
| 2866 fold_T *fp; | |
| 2867 fold_T *fp2; | |
| 2868 garray_T *gap1; | |
| 2869 garray_T *gap2; | |
| 2870 int idx; | |
| 2871 int len; | |
| 2872 | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2873 // The fold continues below bot, need to split it. |
| 7 | 2874 if (foldInsert(gap, i + 1) == FAIL) |
| 2875 return; | |
| 2876 fp = (fold_T *)gap->ga_data + i; | |
| 2877 fp[1].fd_top = bot + 1; | |
| 2878 fp[1].fd_len = fp->fd_len - (fp[1].fd_top - fp->fd_top); | |
| 2879 fp[1].fd_flags = fp->fd_flags; | |
| 1985 | 2880 fp[1].fd_small = MAYBE; |
| 2881 fp->fd_small = MAYBE; | |
| 7 | 2882 |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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18203
diff
changeset
|
2883 // Move nested folds below bot to new fold. There can't be |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2884 // any between top and bot, they have been removed by the caller. |
| 7 | 2885 gap1 = &fp->fd_nested; |
| 2886 gap2 = &fp[1].fd_nested; | |
| 2887 (void)(foldFind(gap1, bot + 1 - fp->fd_top, &fp2)); | |
| 2888 len = (int)((fold_T *)gap1->ga_data + gap1->ga_len - fp2); | |
| 2889 if (len > 0 && ga_grow(gap2, len) == OK) | |
| 2890 { | |
| 2891 for (idx = 0; idx < len; ++idx) | |
| 2892 { | |
| 2893 ((fold_T *)gap2->ga_data)[idx] = fp2[idx]; | |
| 2894 ((fold_T *)gap2->ga_data)[idx].fd_top | |
| 2895 -= fp[1].fd_top - fp->fd_top; | |
| 2896 } | |
| 2897 gap2->ga_len = len; | |
| 2898 gap1->ga_len -= len; | |
| 2899 } | |
| 2900 fp->fd_len = top - fp->fd_top; | |
| 2901 fold_changed = TRUE; | |
| 2902 } | |
| 2903 | |
|
18779
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2904 // foldRemove() {{{2 |
| 7 | 2905 /* |
| 2906 * Remove folds within the range "top" to and including "bot". | |
| 2907 * Check for these situations: | |
| 2908 * 1 2 3 | |
| 2909 * 1 2 3 | |
| 2910 * top 2 3 4 5 | |
| 2911 * 2 3 4 5 | |
| 2912 * bot 2 3 4 5 | |
| 2913 * 3 5 6 | |
| 2914 * 3 5 6 | |
| 2915 * | |
| 2916 * 1: not changed | |
| 1224 | 2917 * 2: truncate to stop above "top" |
| 7 | 2918 * 3: split in two parts, one stops above "top", other starts below "bot". |
| 2919 * 4: deleted | |
| 2920 * 5: made to start below "bot". | |
| 2921 * 6: not changed | |
| 2922 */ | |
| 2923 static void | |
|
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
2924 foldRemove(garray_T *gap, linenr_T top, linenr_T bot) |
| 7 | 2925 { |
| 2926 fold_T *fp = NULL; | |
| 2927 | |
| 2928 if (bot < top) | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2929 return; // nothing to do |
| 7 | 2930 |
| 2931 for (;;) | |
| 2932 { | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2933 // Find fold that includes top or a following one. |
| 7 | 2934 if (foldFind(gap, top, &fp) && fp->fd_top < top) |
| 2935 { | |
|
18779
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parents:
18203
diff
changeset
|
2936 // 2: or 3: need to delete nested folds |
| 7 | 2937 foldRemove(&fp->fd_nested, top - fp->fd_top, bot - fp->fd_top); |
|
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e9924d19ee37
patch 8.0.0583: fold test hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11392
diff
changeset
|
2938 if (fp->fd_top + fp->fd_len - 1 > bot) |
| 7 | 2939 { |
|
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diff
changeset
|
2940 // 3: need to split it. |
| 7 | 2941 foldSplit(gap, (int)(fp - (fold_T *)gap->ga_data), top, bot); |
| 2942 } | |
| 2943 else | |
| 2944 { | |
|
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changeset
|
2945 // 2: truncate fold at "top". |
| 7 | 2946 fp->fd_len = top - fp->fd_top; |
| 2947 } | |
| 2948 fold_changed = TRUE; | |
| 2949 continue; | |
| 2950 } | |
| 2951 if (fp >= (fold_T *)(gap->ga_data) + gap->ga_len | |
| 2952 || fp->fd_top > bot) | |
| 2953 { | |
|
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changeset
|
2954 // 6: Found a fold below bot, can stop looking. |
| 7 | 2955 break; |
| 2956 } | |
| 2957 if (fp->fd_top >= top) | |
| 2958 { | |
|
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changeset
|
2959 // Found an entry below top. |
| 7 | 2960 fold_changed = TRUE; |
| 36 | 2961 if (fp->fd_top + fp->fd_len - 1 > bot) |
| 7 | 2962 { |
|
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changeset
|
2963 // 5: Make fold that includes bot start below bot. |
| 7 | 2964 foldMarkAdjustRecurse(&fp->fd_nested, |
| 2965 (linenr_T)0, (long)(bot - fp->fd_top), | |
| 2966 (linenr_T)MAXLNUM, (long)(fp->fd_top - bot - 1)); | |
| 2967 fp->fd_len -= bot - fp->fd_top + 1; | |
| 2968 fp->fd_top = bot + 1; | |
| 2969 break; | |
| 2970 } | |
| 2971 | |
|
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changeset
|
2972 // 4: Delete completely contained fold. |
| 7 | 2973 deleteFoldEntry(gap, (int)(fp - (fold_T *)gap->ga_data), TRUE); |
| 2974 } | |
| 2975 } | |
| 2976 } | |
| 2977 | |
|
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changeset
|
2978 // foldReverseOrder() {{{2 |
|
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changeset
|
2979 static void |
|
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changeset
|
2980 foldReverseOrder(garray_T *gap, linenr_T start_arg, linenr_T end_arg) |
|
11140
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changeset
|
2981 { |
|
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changeset
|
2982 fold_T *left, *right; |
|
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changeset
|
2983 fold_T tmp; |
|
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changeset
|
2984 linenr_T start = start_arg; |
|
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changeset
|
2985 linenr_T end = end_arg; |
|
11140
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changeset
|
2986 |
|
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changeset
|
2987 for (; start < end; start++, end--) |
|
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changeset
|
2988 { |
|
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changeset
|
2989 left = (fold_T *)gap->ga_data + start; |
|
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changeset
|
2990 right = (fold_T *)gap->ga_data + end; |
|
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changeset
|
2991 tmp = *left; |
|
6b26e044b6f5
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changeset
|
2992 *left = *right; |
|
6b26e044b6f5
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changeset
|
2993 *right = tmp; |
|
6b26e044b6f5
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changeset
|
2994 } |
|
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changeset
|
2995 } |
|
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changeset
|
2996 |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
2997 // foldMoveRange() {{{2 |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2998 /* |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
2999 * 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
|
3000 * requires "line1" <= "line2" <= "dest" |
|
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 * 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
|
3003 * 1 2 3 4 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3004 * 1 2 3 4 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3005 * line1 2 3 4 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3006 * 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
|
3007 * 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
|
3008 * 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
|
3009 * 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
|
3010 * 4 7 8 10 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3011 * 4 7 8 10 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3012 * |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3013 * 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
|
3014 * the fold array. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3015 * 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
|
3016 * 1. not changed |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3017 * 2. truncated above line1 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3018 * 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
|
3019 * 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
|
3020 * 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
|
3021 * 5. moved to dest. |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3022 * 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
|
3023 * 7. length reduced by line2 - dest, folds starting between line2 and dest are |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3024 * removed, top is moved down by move_len. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3025 * 8. truncated below dest and shifted up. |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3026 * 9. shifted up |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3027 * 10. not changed |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3028 */ |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3029 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3030 static void |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3031 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
|
3032 { |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3033 end += 1; |
|
11140
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3034 foldRemove(&fp->fd_nested, end - fp->fd_top, MAXLNUM); |
|
11156
80241603dd50
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Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3035 fp->fd_len = end - fp->fd_top; |
|
11140
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3036 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3037 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3038 #define fold_end(fp) ((fp)->fd_top + (fp)->fd_len - 1) |
|
6b26e044b6f5
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parents:
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changeset
|
3039 #define valid_fold(fp, gap) ((fp) < ((fold_T *)(gap)->ga_data + (gap)->ga_len)) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3040 #define fold_index(fp, gap) ((size_t)(fp - ((fold_T *)(gap)->ga_data))) |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3041 |
|
11148
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3042 void |
|
87779062d706
patch 8.0.0461: test 45 hangs on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11140
diff
changeset
|
3043 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:
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diff
changeset
|
3044 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3045 fold_T *fp; |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3046 linenr_T range_len = line2 - line1 + 1; |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3047 linenr_T move_len = dest - line2; |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3048 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
|
3049 size_t move_start = 0, move_end = 0, dest_index = 0; |
|
6b26e044b6f5
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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 if (at_start) |
|
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 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
|
3054 { |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3055 // Case 4 |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3056 // don't have to change this fold, but have to move nested folds. |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3057 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
|
3058 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
|
3059 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3060 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3061 else if (fold_end(fp) > line2) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3062 { |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3063 // Case 3 |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3064 // Remove nested folds between line1 and line2 & reduce the |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3065 // length of fold by "range_len". |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3066 // Folds after this one must be dealt with. |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3067 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
|
3068 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
|
3069 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
|
3070 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3071 else |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3072 // 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
|
3073 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
|
3074 |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3075 // Look at the next fold, and treat that one as if it were the first |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3076 // after "line1" (because now it is). |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3077 fp = fp + 1; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3078 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3079 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3080 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
|
3081 { |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3082 // Case 10 |
|
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3083 // No folds after "line1" and before "dest" |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
3084 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3085 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3086 else if (fp->fd_top > line2) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3087 { |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
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11148
diff
changeset
|
3088 for (; valid_fold(fp, gap) && fold_end(fp) <= dest; fp++) |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3089 // Case 9. (for all case 9's) -- shift up. |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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diff
changeset
|
3090 fp->fd_top -= range_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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parents:
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diff
changeset
|
3091 |
|
11156
80241603dd50
patch 8.0.0465: off-by-one error in using :move with folding
Christian Brabandt <cb@256bit.org>
parents:
11148
diff
changeset
|
3092 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
|
3093 { |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3094 // Case 8. -- ensure truncated at dest, shift up |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3095 truncate_fold(fp, dest); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3096 fp->fd_top -= range_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3097 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3098 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3099 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3100 else if (fold_end(fp) > dest) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3101 { |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3102 // Case 7 -- remove nested folds and shrink |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3103 foldMarkAdjustRecurse(&fp->fd_nested, line2 + 1 - fp->fd_top, dest - |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3104 fp->fd_top, MAXLNUM, -move_len); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3105 fp->fd_len -= move_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3106 fp->fd_top += move_len; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3107 return; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3108 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3109 |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3110 // Case 5 or 6 |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3111 // changes rely on whether there are folds between the end of |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3112 // this fold and "dest". |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3113 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
|
3114 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3115 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
|
3116 { |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3117 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
|
3118 { |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3119 // 1. 2. or 3. |
|
11140
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3120 if (fold_end(fp) > line2) |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3121 // 2. or 3., truncate before moving |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3122 truncate_fold(fp, line2); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3123 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3124 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
|
3125 continue; |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3126 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3127 |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3128 // Record index of the first fold after the moved range. |
|
11140
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
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parents:
11131
diff
changeset
|
3129 if (move_end == 0) |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3130 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
|
3131 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3132 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
|
3133 truncate_fold(fp, dest); |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3134 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3135 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
|
3136 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3137 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3138 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
|
3139 |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3140 /* |
|
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3141 * 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
|
3142 * 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
|
3143 * 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
|
3144 */ |
|
11392
dc2800c3572b
patch 8.0.0581: moving folded text is sometimes not correct
Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3145 if (move_end == 0) |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3146 // There are no folds after those moved, hence no folds have been moved |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
3147 // out of order. |
|
11392
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Christian Brabandt <cb@256bit.org>
parents:
11234
diff
changeset
|
3148 return; |
|
11165
f0602688b8ef
patch 8.0.0469: compiler warnings on MS-Windows
Christian Brabandt <cb@256bit.org>
parents:
11156
diff
changeset
|
3149 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
|
3150 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
|
3151 (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
|
3152 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
|
3153 (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
|
3154 } |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3155 #undef fold_end |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3156 #undef valid_fold |
|
6b26e044b6f5
patch 8.0.0457: using :move messes up manual folds
Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3157 #undef fold_index |
|
6b26e044b6f5
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Christian Brabandt <cb@256bit.org>
parents:
11131
diff
changeset
|
3158 |
|
18779
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3159 // foldMerge() {{{2 |
| 7 | 3160 /* |
| 1224 | 3161 * Merge two adjacent folds (and the nested ones in them). |
| 3162 * This only works correctly when the folds are really adjacent! Thus "fp1" | |
| 7 | 3163 * must end just above "fp2". |
| 3164 * The resulting fold is "fp1", nested folds are moved from "fp2" to "fp1". | |
| 3165 * Fold entry "fp2" in "gap" is deleted. | |
| 3166 */ | |
| 3167 static void | |
|
7821
81794242a275
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3168 foldMerge(fold_T *fp1, garray_T *gap, fold_T *fp2) |
| 7 | 3169 { |
| 3170 fold_T *fp3; | |
| 3171 fold_T *fp4; | |
| 3172 int idx; | |
| 3173 garray_T *gap1 = &fp1->fd_nested; | |
| 3174 garray_T *gap2 = &fp2->fd_nested; | |
| 3175 | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3176 // If the last nested fold in fp1 touches the first nested fold in fp2, |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3177 // merge them recursively. |
| 7 | 3178 if (foldFind(gap1, fp1->fd_len - 1L, &fp3) && foldFind(gap2, 0L, &fp4)) |
| 3179 foldMerge(fp3, gap2, fp4); | |
| 3180 | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3181 // Move nested folds in fp2 to the end of fp1. |
| 7 | 3182 if (gap2->ga_len > 0 && ga_grow(gap1, gap2->ga_len) == OK) |
| 3183 { | |
| 3184 for (idx = 0; idx < gap2->ga_len; ++idx) | |
| 3185 { | |
| 3186 ((fold_T *)gap1->ga_data)[gap1->ga_len] | |
| 3187 = ((fold_T *)gap2->ga_data)[idx]; | |
| 3188 ((fold_T *)gap1->ga_data)[gap1->ga_len].fd_top += fp1->fd_len; | |
| 3189 ++gap1->ga_len; | |
| 3190 } | |
| 3191 gap2->ga_len = 0; | |
| 3192 } | |
| 3193 | |
| 3194 fp1->fd_len += fp2->fd_len; | |
| 3195 deleteFoldEntry(gap, (int)(fp2 - (fold_T *)gap->ga_data), TRUE); | |
| 3196 fold_changed = TRUE; | |
| 3197 } | |
| 3198 | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3199 // foldlevelIndent() {{{2 |
| 7 | 3200 /* |
| 3201 * Low level function to get the foldlevel for the "indent" method. | |
| 3202 * Doesn't use any caching. | |
| 3203 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
| 3204 */ | |
| 3205 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3206 foldlevelIndent(fline_T *flp) |
| 7 | 3207 { |
| 3208 char_u *s; | |
| 3209 buf_T *buf; | |
| 3210 linenr_T lnum = flp->lnum + flp->off; | |
| 3211 | |
| 3212 buf = flp->wp->w_buffer; | |
| 3213 s = skipwhite(ml_get_buf(buf, lnum, FALSE)); | |
| 3214 | |
|
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diff
changeset
|
3215 // empty line or lines starting with a character in 'foldignore': level |
|
8f05b3cf8557
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diff
changeset
|
3216 // depends on surrounding lines |
| 7 | 3217 if (*s == NUL || vim_strchr(flp->wp->w_p_fdi, *s) != NULL) |
| 3218 { | |
|
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changeset
|
3219 // first and last line can't be undefined, use level 0 |
| 7 | 3220 if (lnum == 1 || lnum == buf->b_ml.ml_line_count) |
| 3221 flp->lvl = 0; | |
| 3222 else | |
| 3223 flp->lvl = -1; | |
| 3224 } | |
| 3225 else | |
|
15031
03831e5ea0de
patch 8.1.0527: using 'shiftwidth' from wrong buffer for folding
Bram Moolenaar <Bram@vim.org>
parents:
12477
diff
changeset
|
3226 flp->lvl = get_indent_buf(buf, lnum) / get_sw_value(buf); |
| 7 | 3227 if (flp->lvl > flp->wp->w_p_fdn) |
| 1028 | 3228 { |
| 7 | 3229 flp->lvl = flp->wp->w_p_fdn; |
| 1028 | 3230 if (flp->lvl < 0) |
| 3231 flp->lvl = 0; | |
| 3232 } | |
| 7 | 3233 } |
| 3234 | |
|
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diff
changeset
|
3235 // foldlevelDiff() {{{2 |
| 7 | 3236 #ifdef FEAT_DIFF |
| 3237 /* | |
| 3238 * Low level function to get the foldlevel for the "diff" method. | |
| 3239 * Doesn't use any caching. | |
| 3240 */ | |
| 3241 static void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3242 foldlevelDiff(fline_T *flp) |
| 7 | 3243 { |
| 3244 if (diff_infold(flp->wp, flp->lnum + flp->off)) | |
| 3245 flp->lvl = 1; | |
| 3246 else | |
| 3247 flp->lvl = 0; | |
| 3248 } | |
| 3249 #endif | |
| 3250 | |
|
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changeset
|
3251 // foldlevelExpr() {{{2 |
| 7 | 3252 /* |
| 3253 * Low level function to get the foldlevel for the "expr" method. | |
| 3254 * Doesn't use any caching. | |
| 3255 * Returns a level of -1 if the foldlevel depends on surrounding lines. | |
| 3256 */ | |
| 3257 static void | |
|
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3258 foldlevelExpr(fline_T *flp) |
| 7 | 3259 { |
| 3260 #ifndef FEAT_EVAL | |
| 3261 flp->start = FALSE; | |
| 3262 flp->lvl = 0; | |
| 3263 #else | |
| 3264 win_T *win; | |
| 3265 int n; | |
| 3266 int c; | |
| 3267 linenr_T lnum = flp->lnum + flp->off; | |
| 3268 int save_keytyped; | |
| 3269 | |
| 3270 win = curwin; | |
| 3271 curwin = flp->wp; | |
| 3272 curbuf = flp->wp->w_buffer; | |
| 3273 set_vim_var_nr(VV_LNUM, lnum); | |
| 3274 | |
| 3275 flp->start = 0; | |
| 3276 flp->had_end = flp->end; | |
| 3277 flp->end = MAX_LEVEL + 1; | |
| 3278 if (lnum <= 1) | |
| 3279 flp->lvl = 0; | |
| 3280 | |
|
18779
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changeset
|
3281 // KeyTyped may be reset to 0 when calling a function which invokes |
|
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parents:
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diff
changeset
|
3282 // do_cmdline(). To make 'foldopen' work correctly restore KeyTyped. |
| 7 | 3283 save_keytyped = KeyTyped; |
|
9389
32e34e574716
commit https://github.com/vim/vim/commit/22fcfad29276bd5f317faf516637dcd491b96a12
Christian Brabandt <cb@256bit.org>
parents:
9252
diff
changeset
|
3284 n = (int)eval_foldexpr(flp->wp->w_p_fde, &c); |
| 7 | 3285 KeyTyped = save_keytyped; |
| 3286 | |
| 3287 switch (c) | |
| 3288 { | |
|
18779
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diff
changeset
|
3289 // "a1", "a2", .. : add to the fold level |
| 7 | 3290 case 'a': if (flp->lvl >= 0) |
| 3291 { | |
| 3292 flp->lvl += n; | |
| 3293 flp->lvl_next = flp->lvl; | |
| 3294 } | |
| 3295 flp->start = n; | |
| 3296 break; | |
| 3297 | |
|
18779
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changeset
|
3298 // "s1", "s2", .. : subtract from the fold level |
| 7 | 3299 case 's': if (flp->lvl >= 0) |
| 3300 { | |
| 3301 if (n > flp->lvl) | |
| 3302 flp->lvl_next = 0; | |
| 3303 else | |
| 3304 flp->lvl_next = flp->lvl - n; | |
| 3305 flp->end = flp->lvl_next + 1; | |
| 3306 } | |
| 3307 break; | |
| 3308 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3309 // ">1", ">2", .. : start a fold with a certain level |
| 7 | 3310 case '>': flp->lvl = n; |
| 3311 flp->lvl_next = n; | |
| 3312 flp->start = 1; | |
| 3313 break; | |
| 3314 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3315 // "<1", "<2", .. : end a fold with a certain level |
| 7 | 3316 case '<': flp->lvl_next = n - 1; |
| 3317 flp->end = n; | |
| 3318 break; | |
| 3319 | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3320 // "=": No change in level |
| 7 | 3321 case '=': flp->lvl_next = flp->lvl; |
| 3322 break; | |
| 3323 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3324 // "-1", "0", "1", ..: set fold level |
| 7 | 3325 default: if (n < 0) |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3326 // Use the current level for the next line, so that "a1" |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3327 // will work there. |
| 7 | 3328 flp->lvl_next = flp->lvl; |
| 3329 else | |
| 3330 flp->lvl_next = n; | |
| 3331 flp->lvl = n; | |
| 3332 break; | |
| 3333 } | |
| 3334 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3335 // If the level is unknown for the first or the last line in the file, use |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3336 // level 0. |
| 7 | 3337 if (flp->lvl < 0) |
| 3338 { | |
| 3339 if (lnum <= 1) | |
| 3340 { | |
| 3341 flp->lvl = 0; | |
| 3342 flp->lvl_next = 0; | |
| 3343 } | |
| 3344 if (lnum == curbuf->b_ml.ml_line_count) | |
| 3345 flp->lvl_next = 0; | |
| 3346 } | |
| 3347 | |
| 3348 curwin = win; | |
| 3349 curbuf = curwin->w_buffer; | |
| 3350 #endif | |
| 3351 } | |
| 3352 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3353 // parseMarker() {{{2 |
| 7 | 3354 /* |
| 3355 * Parse 'foldmarker' and set "foldendmarker", "foldstartmarkerlen" and | |
| 3356 * "foldendmarkerlen". | |
| 3357 * Relies on the option value to have been checked for correctness already. | |
| 3358 */ | |
| 3359 static void | |
|
7821
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commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3360 parseMarker(win_T *wp) |
| 7 | 3361 { |
| 3362 foldendmarker = vim_strchr(wp->w_p_fmr, ','); | |
| 3363 foldstartmarkerlen = (int)(foldendmarker++ - wp->w_p_fmr); | |
| 3364 foldendmarkerlen = (int)STRLEN(foldendmarker); | |
| 3365 } | |
| 3366 | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3367 // foldlevelMarker() {{{2 |
| 7 | 3368 /* |
| 3369 * Low level function to get the foldlevel for the "marker" method. | |
| 3370 * "foldendmarker", "foldstartmarkerlen" and "foldendmarkerlen" must have been | |
| 3371 * set before calling this. | |
| 3372 * Requires that flp->lvl is set to the fold level of the previous line! | |
| 3373 * Careful: This means you can't call this function twice on the same line. | |
| 3374 * Doesn't use any caching. | |
| 3375 * Sets flp->start when a start marker was found. | |
| 3376 */ | |
| 3377 static void | |
|
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3378 foldlevelMarker(fline_T *flp) |
| 7 | 3379 { |
| 3380 char_u *startmarker; | |
| 3381 int cstart; | |
| 3382 int cend; | |
| 3383 int start_lvl = flp->lvl; | |
| 3384 char_u *s; | |
| 3385 int n; | |
| 3386 | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3387 // cache a few values for speed |
| 7 | 3388 startmarker = flp->wp->w_p_fmr; |
| 3389 cstart = *startmarker; | |
| 3390 ++startmarker; | |
| 3391 cend = *foldendmarker; | |
| 3392 | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3393 // Default: no start found, next level is same as current level |
| 7 | 3394 flp->start = 0; |
| 3395 flp->lvl_next = flp->lvl; | |
| 3396 | |
| 3397 s = ml_get_buf(flp->wp->w_buffer, flp->lnum + flp->off, FALSE); | |
| 3398 while (*s) | |
| 3399 { | |
| 3400 if (*s == cstart | |
| 3401 && STRNCMP(s + 1, startmarker, foldstartmarkerlen - 1) == 0) | |
| 3402 { | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3403 // found startmarker: set flp->lvl |
| 7 | 3404 s += foldstartmarkerlen; |
| 3405 if (VIM_ISDIGIT(*s)) | |
| 3406 { | |
| 3407 n = atoi((char *)s); | |
| 3408 if (n > 0) | |
| 3409 { | |
| 3410 flp->lvl = n; | |
| 3411 flp->lvl_next = n; | |
| 3412 if (n <= start_lvl) | |
| 3413 flp->start = 1; | |
| 3414 else | |
| 3415 flp->start = n - start_lvl; | |
| 3416 } | |
| 3417 } | |
| 3418 else | |
| 3419 { | |
| 3420 ++flp->lvl; | |
| 3421 ++flp->lvl_next; | |
| 3422 ++flp->start; | |
| 3423 } | |
| 3424 } | |
| 3425 else if (*s == cend | |
| 3426 && STRNCMP(s + 1, foldendmarker + 1, foldendmarkerlen - 1) == 0) | |
| 3427 { | |
|
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8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3428 // found endmarker: set flp->lvl_next |
| 7 | 3429 s += foldendmarkerlen; |
| 3430 if (VIM_ISDIGIT(*s)) | |
| 3431 { | |
| 3432 n = atoi((char *)s); | |
| 3433 if (n > 0) | |
| 3434 { | |
| 3435 flp->lvl = n; | |
| 3436 flp->lvl_next = n - 1; | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3437 // never start a fold with an end marker |
|
2054
79b8d69a4588
updated for version 7.2.340
Bram Moolenaar <bram@zimbu.org>
parents:
1985
diff
changeset
|
3438 if (flp->lvl_next > start_lvl) |
|
79b8d69a4588
updated for version 7.2.340
Bram Moolenaar <bram@zimbu.org>
parents:
1985
diff
changeset
|
3439 flp->lvl_next = start_lvl; |
| 7 | 3440 } |
| 3441 } | |
| 3442 else | |
| 3443 --flp->lvl_next; | |
| 3444 } | |
| 3445 else | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
3446 MB_PTR_ADV(s); |
| 7 | 3447 } |
| 3448 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3449 // The level can't go negative, must be missing a start marker. |
| 7 | 3450 if (flp->lvl_next < 0) |
| 3451 flp->lvl_next = 0; | |
| 3452 } | |
| 3453 | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3454 // foldlevelSyntax() {{{2 |
| 7 | 3455 /* |
| 3456 * Low level function to get the foldlevel for the "syntax" method. | |
| 3457 * Doesn't use any caching. | |
| 3458 */ | |
| 3459 static void | |
|
7821
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commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3460 foldlevelSyntax(fline_T *flp) |
| 7 | 3461 { |
| 3462 #ifndef FEAT_SYN_HL | |
| 3463 flp->start = 0; | |
| 3464 flp->lvl = 0; | |
| 3465 #else | |
| 3466 linenr_T lnum = flp->lnum + flp->off; | |
| 3467 int n; | |
| 3468 | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3469 // Use the maximum fold level at the start of this line and the next. |
| 7 | 3470 flp->lvl = syn_get_foldlevel(flp->wp, lnum); |
| 3471 flp->start = 0; | |
| 3472 if (lnum < flp->wp->w_buffer->b_ml.ml_line_count) | |
| 3473 { | |
| 3474 n = syn_get_foldlevel(flp->wp, lnum + 1); | |
| 3475 if (n > flp->lvl) | |
| 3476 { | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3477 flp->start = n - flp->lvl; // fold(s) start here |
| 7 | 3478 flp->lvl = n; |
| 3479 } | |
| 3480 } | |
| 3481 #endif | |
| 3482 } | |
| 3483 | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3484 // functions for storing the fold state in a View {{{1 |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3485 // put_folds() {{{2 |
| 7 | 3486 #if defined(FEAT_SESSION) || defined(PROTO) |
|
7801
a1e71a01dbd6
commit https://github.com/vim/vim/commit/d25c16e2f2776d50245bf31d6e4d5364f12d188e
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3487 static int put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off); |
|
a1e71a01dbd6
commit https://github.com/vim/vim/commit/d25c16e2f2776d50245bf31d6e4d5364f12d188e
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3488 static int put_foldopen_recurse(FILE *fd, win_T *wp, garray_T *gap, linenr_T off); |
|
a1e71a01dbd6
commit https://github.com/vim/vim/commit/d25c16e2f2776d50245bf31d6e4d5364f12d188e
Christian Brabandt <cb@256bit.org>
parents:
7009
diff
changeset
|
3489 static int put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off); |
| 7 | 3490 |
| 3491 /* | |
| 3492 * Write commands to "fd" to restore the manual folds in window "wp". | |
| 3493 * Return FAIL if writing fails. | |
| 3494 */ | |
| 3495 int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3496 put_folds(FILE *fd, win_T *wp) |
| 7 | 3497 { |
| 3498 if (foldmethodIsManual(wp)) | |
| 3499 { | |
| 3500 if (put_line(fd, "silent! normal! zE") == FAIL | |
| 3501 || put_folds_recurse(fd, &wp->w_folds, (linenr_T)0) == FAIL) | |
| 3502 return FAIL; | |
| 3503 } | |
| 3504 | |
|
18779
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3505 // If some folds are manually opened/closed, need to restore that. |
| 7 | 3506 if (wp->w_fold_manual) |
| 3392 | 3507 return put_foldopen_recurse(fd, wp, &wp->w_folds, (linenr_T)0); |
| 7 | 3508 |
| 3509 return OK; | |
| 3510 } | |
| 3511 | |
|
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8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3512 // put_folds_recurse() {{{2 |
| 7 | 3513 /* |
| 3514 * Write commands to "fd" to recreate manually created folds. | |
| 3515 * Returns FAIL when writing failed. | |
| 3516 */ | |
| 3517 static int | |
|
7821
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3518 put_folds_recurse(FILE *fd, garray_T *gap, linenr_T off) |
| 7 | 3519 { |
| 3520 int i; | |
| 3521 fold_T *fp; | |
| 3522 | |
| 3523 fp = (fold_T *)gap->ga_data; | |
| 3524 for (i = 0; i < gap->ga_len; i++) | |
| 3525 { | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3526 // Do nested folds first, they will be created closed. |
| 7 | 3527 if (put_folds_recurse(fd, &fp->fd_nested, off + fp->fd_top) == FAIL) |
| 3528 return FAIL; | |
| 3529 if (fprintf(fd, "%ld,%ldfold", fp->fd_top + off, | |
| 3530 fp->fd_top + off + fp->fd_len - 1) < 0 | |
| 3531 || put_eol(fd) == FAIL) | |
| 3532 return FAIL; | |
| 3533 ++fp; | |
| 3534 } | |
| 3535 return OK; | |
| 3536 } | |
| 3537 | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3538 // put_foldopen_recurse() {{{2 |
| 7 | 3539 /* |
| 3540 * Write commands to "fd" to open and close manually opened/closed folds. | |
| 3541 * Returns FAIL when writing failed. | |
| 3542 */ | |
| 3543 static int | |
|
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commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3544 put_foldopen_recurse( |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3545 FILE *fd, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3546 win_T *wp, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3547 garray_T *gap, |
|
81794242a275
commit https://github.com/vim/vim/commit/66f948e928d5e0cd3123af902aa8ac1613534c94
Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3548 linenr_T off) |
| 7 | 3549 { |
| 3550 int i; | |
| 3392 | 3551 int level; |
| 7 | 3552 fold_T *fp; |
| 3553 | |
| 3554 fp = (fold_T *)gap->ga_data; | |
| 3555 for (i = 0; i < gap->ga_len; i++) | |
| 3556 { | |
| 3557 if (fp->fd_flags != FD_LEVEL) | |
| 3558 { | |
| 3559 if (fp->fd_nested.ga_len > 0) | |
| 3560 { | |
|
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parents:
18203
diff
changeset
|
3561 // open nested folds while this fold is open |
| 7 | 3562 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 |
| 3563 || put_eol(fd) == FAIL | |
| 3766 | 3564 || put_line(fd, "normal! zo") == FAIL) |
| 7 | 3565 return FAIL; |
| 3392 | 3566 if (put_foldopen_recurse(fd, wp, &fp->fd_nested, |
| 3567 off + fp->fd_top) | |
| 7 | 3568 == FAIL) |
| 3569 return FAIL; | |
|
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parents:
18203
diff
changeset
|
3570 // close the parent when needed |
| 3392 | 3571 if (fp->fd_flags == FD_CLOSED) |
| 3572 { | |
| 3573 if (put_fold_open_close(fd, fp, off) == FAIL) | |
| 3574 return FAIL; | |
| 3575 } | |
| 3576 } | |
| 3577 else | |
| 3578 { | |
|
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parents:
18203
diff
changeset
|
3579 // Open or close the leaf according to the window foldlevel. |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3580 // Do not close a leaf that is already closed, as it will close |
|
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3581 // the parent. |
| 3392 | 3582 level = foldLevelWin(wp, off + fp->fd_top); |
| 3583 if ((fp->fd_flags == FD_CLOSED && wp->w_p_fdl >= level) | |
| 3584 || (fp->fd_flags != FD_CLOSED && wp->w_p_fdl < level)) | |
| 3585 if (put_fold_open_close(fd, fp, off) == FAIL) | |
| 3586 return FAIL; | |
| 7 | 3587 } |
| 3588 } | |
| 3589 ++fp; | |
| 3590 } | |
| 3591 | |
| 3592 return OK; | |
| 3593 } | |
| 3392 | 3594 |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3595 // put_fold_open_close() {{{2 |
| 3392 | 3596 /* |
| 3597 * Write the open or close command to "fd". | |
| 3598 * Returns FAIL when writing failed. | |
| 3599 */ | |
| 3600 static int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7807
diff
changeset
|
3601 put_fold_open_close(FILE *fd, fold_T *fp, linenr_T off) |
| 3392 | 3602 { |
| 3603 if (fprintf(fd, "%ld", fp->fd_top + off) < 0 | |
| 3604 || put_eol(fd) == FAIL | |
| 3766 | 3605 || fprintf(fd, "normal! z%c", |
| 3392 | 3606 fp->fd_flags == FD_CLOSED ? 'c' : 'o') < 0 |
| 3607 || put_eol(fd) == FAIL) | |
| 3608 return FAIL; | |
| 3609 | |
| 3610 return OK; | |
| 3611 } | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
18203
diff
changeset
|
3612 #endif // FEAT_SESSION |
|
8f05b3cf8557
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parents:
18203
diff
changeset
|
3613 |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
18203
diff
changeset
|
3614 // }}}1 |
|
17928
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3615 #endif // defined(FEAT_FOLDING) || defined(PROTO) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3616 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3617 #if defined(FEAT_EVAL) || defined(PROTO) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
3618 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3619 /* |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3620 * "foldclosed()" and "foldclosedend()" functions |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3621 */ |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3622 static void |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3623 foldclosed_both( |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3624 typval_T *argvars UNUSED, |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3625 typval_T *rettv, |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3626 int end UNUSED) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3627 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3628 # ifdef FEAT_FOLDING |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3629 linenr_T lnum; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3630 linenr_T first, last; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3631 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3632 lnum = tv_get_lnum(argvars); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3633 if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3634 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3635 if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL)) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3636 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3637 if (end) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3638 rettv->vval.v_number = (varnumber_T)last; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3639 else |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3640 rettv->vval.v_number = (varnumber_T)first; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3641 return; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3642 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3643 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3644 #endif |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3645 rettv->vval.v_number = -1; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3646 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3647 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3648 /* |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3649 * "foldclosed()" function |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3650 */ |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3651 void |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3652 f_foldclosed(typval_T *argvars, typval_T *rettv) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3653 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3654 foldclosed_both(argvars, rettv, FALSE); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3655 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3656 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3657 /* |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3658 * "foldclosedend()" function |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3659 */ |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3660 void |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3661 f_foldclosedend(typval_T *argvars, typval_T *rettv) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3662 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3663 foldclosed_both(argvars, rettv, TRUE); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3664 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3665 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3666 /* |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3667 * "foldlevel()" function |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3668 */ |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3669 void |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3670 f_foldlevel(typval_T *argvars UNUSED, typval_T *rettv UNUSED) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3671 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3672 # ifdef FEAT_FOLDING |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3673 linenr_T lnum; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3674 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3675 lnum = tv_get_lnum(argvars); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3676 if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3677 rettv->vval.v_number = foldLevel(lnum); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3678 # endif |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3679 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3680 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3681 /* |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3682 * "foldtext()" function |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3683 */ |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3684 void |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3685 f_foldtext(typval_T *argvars UNUSED, typval_T *rettv) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3686 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3687 # ifdef FEAT_FOLDING |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3688 linenr_T foldstart; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3689 linenr_T foldend; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3690 char_u *dashes; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3691 linenr_T lnum; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3692 char_u *s; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3693 char_u *r; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3694 int len; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3695 char *txt; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3696 long count; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3697 # endif |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3698 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3699 rettv->v_type = VAR_STRING; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3700 rettv->vval.v_string = NULL; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3701 # ifdef FEAT_FOLDING |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3702 foldstart = (linenr_T)get_vim_var_nr(VV_FOLDSTART); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3703 foldend = (linenr_T)get_vim_var_nr(VV_FOLDEND); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3704 dashes = get_vim_var_str(VV_FOLDDASHES); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3705 if (foldstart > 0 && foldend <= curbuf->b_ml.ml_line_count |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3706 && dashes != NULL) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3707 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3708 // Find first non-empty line in the fold. |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3709 for (lnum = foldstart; lnum < foldend; ++lnum) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3710 if (!linewhite(lnum)) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3711 break; |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3712 |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3713 // Find interesting text in this line. |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3714 s = skipwhite(ml_get(lnum)); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3715 // skip C comment-start |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3716 if (s[0] == '/' && (s[1] == '*' || s[1] == '/')) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3717 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3718 s = skipwhite(s + 2); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3719 if (*skipwhite(s) == NUL |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3720 && lnum + 1 < (linenr_T)get_vim_var_nr(VV_FOLDEND)) |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3721 { |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3722 s = skipwhite(ml_get(lnum + 1)); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3723 if (*s == '*') |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3724 s = skipwhite(s + 1); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3725 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3726 } |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3727 count = (long)(foldend - foldstart + 1); |
|
34639bba19b0
patch 8.1.1960: fold code is spread out
Bram Moolenaar <Bram@vim.org>
parents:
17851
diff
changeset
|
3728 txt = NGETTEXT("+-%s%3ld line: ", "+-%s%3ld lines: ", count); |
|
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parents:
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diff
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|
3729 r = alloc(STRLEN(txt) |
|
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parents:
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diff
changeset
|
3730 + STRLEN(dashes) // for %s |
|
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parents:
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diff
changeset
|
3731 + 20 // for %3ld |
|
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parents:
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diff
changeset
|
3732 + STRLEN(s)); // concatenated |
|
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parents:
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diff
changeset
|
3733 if (r != NULL) |
|
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diff
changeset
|
3734 { |
|
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parents:
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changeset
|
3735 sprintf((char *)r, txt, dashes, count); |
|
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parents:
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diff
changeset
|
3736 len = (int)STRLEN(r); |
|
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diff
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|
3737 STRCAT(r, s); |
|
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parents:
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diff
changeset
|
3738 // remove 'foldmarker' and 'commentstring' |
|
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diff
changeset
|
3739 foldtext_cleanup(r + len); |
|
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parents:
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diff
changeset
|
3740 rettv->vval.v_string = r; |
|
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|
3741 } |
|
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|
3742 } |
|
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|
3743 # endif |
|
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|
3744 } |
|
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diff
changeset
|
3745 |
|
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diff
changeset
|
3746 /* |
|
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diff
changeset
|
3747 * "foldtextresult(lnum)" function |
|
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|
3748 */ |
|
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|
3749 void |
|
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|
3750 f_foldtextresult(typval_T *argvars UNUSED, typval_T *rettv) |
|
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|
3751 { |
|
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|
3752 # ifdef FEAT_FOLDING |
|
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|
3753 linenr_T lnum; |
|
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diff
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|
3754 char_u *text; |
|
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|
3755 char_u buf[FOLD_TEXT_LEN]; |
|
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|
3756 foldinfo_T foldinfo; |
|
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|
3757 int fold_count; |
|
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|
3758 static int entered = FALSE; |
|
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|
3759 # endif |
|
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|
3760 |
|
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|
3761 rettv->v_type = VAR_STRING; |
|
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|
3762 rettv->vval.v_string = NULL; |
|
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|
3763 # ifdef FEAT_FOLDING |
|
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|
3764 if (entered) |
|
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|
3765 return; // reject recursive use |
|
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|
3766 entered = TRUE; |
|
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|
3767 |
|
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|
3768 lnum = tv_get_lnum(argvars); |
|
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|
3769 // treat illegal types and illegal string values for {lnum} the same |
|
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|
3770 if (lnum < 0) |
|
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|
3771 lnum = 0; |
|
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|
3772 fold_count = foldedCount(curwin, lnum, &foldinfo); |
|
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|
3773 if (fold_count > 0) |
|
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|
3774 { |
|
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|
3775 text = get_foldtext(curwin, lnum, lnum + fold_count - 1, |
|
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|
3776 &foldinfo, buf); |
|
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|
3777 if (text == buf) |
|
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|
3778 text = vim_strsave(text); |
|
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|
3779 rettv->vval.v_string = text; |
|
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|
3780 } |
|
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changeset
|
3781 |
|
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changeset
|
3782 entered = FALSE; |
|
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changeset
|
3783 # endif |
|
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changeset
|
3784 } |
|
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changeset
|
3785 |
|
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changeset
|
3786 #endif // FEAT_EVAL |