Mercurial > vim
annotate src/undo.c @ 2280:941ff1cd317a vim73
Add file save counter to undo information. Add undotree() function.
author | Bram Moolenaar <bram@vim.org> |
---|---|
date | Sun, 27 Jun 2010 01:15:55 +0200 |
parents | 2b33a7678e7b |
children | e41433ea71df |
rev | line source |
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7 | 1 /* vi:set ts=8 sts=4 sw=4: |
2 * | |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 | |
10 /* | |
11 * undo.c: multi level undo facility | |
12 * | |
13 * The saved lines are stored in a list of lists (one for each buffer): | |
14 * | |
15 * b_u_oldhead------------------------------------------------+ | |
16 * | | |
17 * V | |
18 * +--------------+ +--------------+ +--------------+ | |
19 * b_u_newhead--->| u_header | | u_header | | u_header | | |
20 * | uh_next------>| uh_next------>| uh_next---->NULL | |
21 * NULL<--------uh_prev |<---------uh_prev |<---------uh_prev | | |
22 * | uh_entry | | uh_entry | | uh_entry | | |
23 * +--------|-----+ +--------|-----+ +--------|-----+ | |
24 * | | | | |
25 * V V V | |
26 * +--------------+ +--------------+ +--------------+ | |
27 * | u_entry | | u_entry | | u_entry | | |
28 * | ue_next | | ue_next | | ue_next | | |
29 * +--------|-----+ +--------|-----+ +--------|-----+ | |
30 * | | | | |
31 * V V V | |
32 * +--------------+ NULL NULL | |
33 * | u_entry | | |
34 * | ue_next | | |
35 * +--------|-----+ | |
36 * | | |
37 * V | |
38 * etc. | |
39 * | |
40 * Each u_entry list contains the information for one undo or redo. | |
41 * curbuf->b_u_curhead points to the header of the last undo (the next redo), | |
758 | 42 * or is NULL if nothing has been undone (end of the branch). |
7 | 43 * |
753 | 44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at |
45 * each point in the list a branch may appear for an alternate to redo. The | |
46 * uh_seq field is numbered sequentially to be able to find a newer or older | |
47 * branch. | |
48 * | |
758 | 49 * +---------------+ +---------------+ |
50 * b_u_oldhead --->| u_header | | u_header | | |
51 * | uh_alt_next ---->| uh_alt_next ----> NULL | |
52 * NULL <----- uh_alt_prev |<------ uh_alt_prev | | |
53 * | uh_prev | | uh_prev | | |
54 * +-----|---------+ +-----|---------+ | |
55 * | | | |
56 * V V | |
57 * +---------------+ +---------------+ | |
58 * | u_header | | u_header | | |
59 * | uh_alt_next | | uh_alt_next | | |
60 * b_u_newhead --->| uh_alt_prev | | uh_alt_prev | | |
61 * | uh_prev | | uh_prev | | |
62 * +-----|---------+ +-----|---------+ | |
63 * | | | |
64 * V V | |
65 * NULL +---------------+ +---------------+ | |
66 * | u_header | | u_header | | |
67 * | uh_alt_next ---->| uh_alt_next | | |
68 * | uh_alt_prev |<------ uh_alt_prev | | |
69 * | uh_prev | | uh_prev | | |
70 * +-----|---------+ +-----|---------+ | |
71 * | | | |
72 * etc. etc. | |
73 * | |
74 * | |
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75 * All data is allocated and will all be freed when the buffer is unloaded. |
7 | 76 */ |
77 | |
1415 | 78 /* Uncomment the next line for including the u_check() function. This warns |
79 * for errors in the debug information. */ | |
80 /* #define U_DEBUG 1 */ | |
81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */ | |
82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */ | |
83 | |
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84 #if defined(MSDOS) || defined(WIN16) || defined(WIN32) || defined(_WIN64) |
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85 # include "vimio.h" /* for vim_read(), must be before vim.h */ |
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86 #endif |
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87 |
7 | 88 #include "vim.h" |
89 | |
758 | 90 static void u_unch_branch __ARGS((u_header_T *uhp)); |
7 | 91 static u_entry_T *u_get_headentry __ARGS((void)); |
92 static void u_getbot __ARGS((void)); | |
93 static int u_savecommon __ARGS((linenr_T, linenr_T, linenr_T)); | |
94 static void u_doit __ARGS((int count)); | |
777 | 95 static void u_undoredo __ARGS((int undo)); |
798 | 96 static void u_undo_end __ARGS((int did_undo, int absolute)); |
772 | 97 static void u_add_time __ARGS((char_u *buf, size_t buflen, time_t tt)); |
758 | 98 static void u_freeheader __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
753 | 99 static void u_freebranch __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
100 static void u_freeentries __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); | |
7 | 101 static void u_freeentry __ARGS((u_entry_T *, long)); |
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102 #ifdef FEAT_PERSISTENT_UNDO |
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103 static void corruption_error __ARGS((char *mesg, char_u *file_name)); |
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104 static void u_free_uhp __ARGS((u_header_T *uhp)); |
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105 static size_t fwrite_crypt __ARGS((buf_T *buf UNUSED, char_u *ptr, size_t len, FILE *fp)); |
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106 static char_u *read_string_decrypt __ARGS((buf_T *buf UNUSED, FILE *fd, int len)); |
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107 static int serialize_header __ARGS((FILE *fp, buf_T *buf, char_u *hash)); |
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108 static int serialize_uhp __ARGS((FILE *fp, buf_T *buf, u_header_T *uhp)); |
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109 static u_header_T *unserialize_uhp __ARGS((FILE *fp, char_u *file_name, int new_version)); |
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110 static int serialize_uep __ARGS((FILE *fp, buf_T *buf, u_entry_T *uep)); |
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111 static u_entry_T *unserialize_uep __ARGS((FILE *fp, int *error, char_u *file_name)); |
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112 static void serialize_pos __ARGS((pos_T pos, FILE *fp)); |
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113 static void unserialize_pos __ARGS((pos_T *pos, FILE *fp)); |
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114 static void serialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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115 static void unserialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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116 static void put_header_ptr __ARGS((FILE *fp, u_header_T *uhp)); |
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117 #endif |
7 | 118 |
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119 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE) |
7 | 120 static char_u *u_save_line __ARGS((linenr_T)); |
121 | |
122 static long u_newcount, u_oldcount; | |
123 | |
124 /* | |
125 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember | |
126 * the action that "u" should do. | |
127 */ | |
128 static int undo_undoes = FALSE; | |
129 | |
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130 static int lastmark = 0; |
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131 |
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132 #if defined(U_DEBUG) || defined(PROTO) |
1415 | 133 /* |
134 * Check the undo structures for being valid. Print a warning when something | |
135 * looks wrong. | |
136 */ | |
137 static int seen_b_u_curhead; | |
138 static int seen_b_u_newhead; | |
139 static int header_count; | |
140 | |
141 static void | |
142 u_check_tree(u_header_T *uhp, | |
143 u_header_T *exp_uh_next, | |
144 u_header_T *exp_uh_alt_prev) | |
145 { | |
146 u_entry_T *uep; | |
147 | |
148 if (uhp == NULL) | |
149 return; | |
150 ++header_count; | |
151 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1) | |
152 { | |
153 EMSG("b_u_curhead found twice (looping?)"); | |
154 return; | |
155 } | |
156 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1) | |
157 { | |
158 EMSG("b_u_newhead found twice (looping?)"); | |
159 return; | |
160 } | |
161 | |
162 if (uhp->uh_magic != UH_MAGIC) | |
163 EMSG("uh_magic wrong (may be using freed memory)"); | |
164 else | |
165 { | |
166 /* Check pointers back are correct. */ | |
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167 if (uhp->uh_next.ptr != exp_uh_next) |
1415 | 168 { |
169 EMSG("uh_next wrong"); | |
170 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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171 exp_uh_next, uhp->uh_next.ptr); |
1415 | 172 } |
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173 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev) |
1415 | 174 { |
175 EMSG("uh_alt_prev wrong"); | |
176 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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177 exp_uh_alt_prev, uhp->uh_alt_prev.ptr); |
1415 | 178 } |
179 | |
180 /* Check the undo tree at this header. */ | |
181 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) | |
182 { | |
183 if (uep->ue_magic != UE_MAGIC) | |
184 { | |
185 EMSG("ue_magic wrong (may be using freed memory)"); | |
186 break; | |
187 } | |
188 } | |
189 | |
190 /* Check the next alt tree. */ | |
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191 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp); |
1415 | 192 |
193 /* Check the next header in this branch. */ | |
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194 u_check_tree(uhp->uh_prev.ptr, uhp, NULL); |
1415 | 195 } |
196 } | |
197 | |
198 void | |
199 u_check(int newhead_may_be_NULL) | |
200 { | |
201 seen_b_u_newhead = 0; | |
202 seen_b_u_curhead = 0; | |
203 header_count = 0; | |
204 | |
205 u_check_tree(curbuf->b_u_oldhead, NULL, NULL); | |
206 | |
207 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL | |
208 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL)) | |
209 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead); | |
210 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0) | |
211 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead); | |
212 if (header_count != curbuf->b_u_numhead) | |
213 { | |
214 EMSG("b_u_numhead invalid"); | |
215 smsg((char_u *)"expected: %ld, actual: %ld", | |
216 (long)header_count, (long)curbuf->b_u_numhead); | |
217 } | |
218 } | |
219 #endif | |
220 | |
7 | 221 /* |
344 | 222 * Save the current line for both the "u" and "U" command. |
223 * Returns OK or FAIL. | |
7 | 224 */ |
225 int | |
226 u_save_cursor() | |
227 { | |
228 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1), | |
229 (linenr_T)(curwin->w_cursor.lnum + 1))); | |
230 } | |
231 | |
232 /* | |
233 * Save the lines between "top" and "bot" for both the "u" and "U" command. | |
234 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1. | |
235 * Returns FAIL when lines could not be saved, OK otherwise. | |
236 */ | |
237 int | |
238 u_save(top, bot) | |
239 linenr_T top, bot; | |
240 { | |
241 if (undo_off) | |
242 return OK; | |
243 | |
244 if (top > curbuf->b_ml.ml_line_count || | |
245 top >= bot || bot > curbuf->b_ml.ml_line_count + 1) | |
246 return FALSE; /* rely on caller to do error messages */ | |
247 | |
248 if (top + 2 == bot) | |
249 u_saveline((linenr_T)(top + 1)); | |
250 | |
251 return (u_savecommon(top, bot, (linenr_T)0)); | |
252 } | |
253 | |
254 /* | |
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255 * Save the line "lnum" (used by ":s" and "~" command). |
7 | 256 * The line is replaced, so the new bottom line is lnum + 1. |
257 */ | |
258 int | |
259 u_savesub(lnum) | |
260 linenr_T lnum; | |
261 { | |
262 if (undo_off) | |
263 return OK; | |
264 | |
265 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1)); | |
266 } | |
267 | |
268 /* | |
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269 * A new line is inserted before line "lnum" (used by :s command). |
7 | 270 * The line is inserted, so the new bottom line is lnum + 1. |
271 */ | |
272 int | |
273 u_inssub(lnum) | |
274 linenr_T lnum; | |
275 { | |
276 if (undo_off) | |
277 return OK; | |
278 | |
279 return (u_savecommon(lnum - 1, lnum, lnum + 1)); | |
280 } | |
281 | |
282 /* | |
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283 * Save the lines "lnum" - "lnum" + nlines (used by delete command). |
7 | 284 * The lines are deleted, so the new bottom line is lnum, unless the buffer |
285 * becomes empty. | |
286 */ | |
287 int | |
288 u_savedel(lnum, nlines) | |
289 linenr_T lnum; | |
290 long nlines; | |
291 { | |
292 if (undo_off) | |
293 return OK; | |
294 | |
295 return (u_savecommon(lnum - 1, lnum + nlines, | |
296 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum)); | |
297 } | |
298 | |
632 | 299 /* |
300 * Return TRUE when undo is allowed. Otherwise give an error message and | |
301 * return FALSE. | |
302 */ | |
912 | 303 int |
632 | 304 undo_allowed() |
305 { | |
306 /* Don't allow changes when 'modifiable' is off. */ | |
307 if (!curbuf->b_p_ma) | |
308 { | |
309 EMSG(_(e_modifiable)); | |
310 return FALSE; | |
311 } | |
312 | |
313 #ifdef HAVE_SANDBOX | |
314 /* In the sandbox it's not allowed to change the text. */ | |
315 if (sandbox != 0) | |
316 { | |
317 EMSG(_(e_sandbox)); | |
318 return FALSE; | |
319 } | |
320 #endif | |
321 | |
322 /* Don't allow changes in the buffer while editing the cmdline. The | |
323 * caller of getcmdline() may get confused. */ | |
634 | 324 if (textlock != 0) |
632 | 325 { |
326 EMSG(_(e_secure)); | |
327 return FALSE; | |
328 } | |
329 | |
330 return TRUE; | |
331 } | |
332 | |
7 | 333 static int |
334 u_savecommon(top, bot, newbot) | |
335 linenr_T top, bot; | |
336 linenr_T newbot; | |
337 { | |
753 | 338 linenr_T lnum; |
339 long i; | |
340 u_header_T *uhp; | |
341 u_header_T *old_curhead; | |
342 u_entry_T *uep; | |
343 u_entry_T *prev_uep; | |
344 long size; | |
7 | 345 |
632 | 346 /* When making changes is not allowed return FAIL. It's a crude way to |
347 * make all change commands fail. */ | |
348 if (!undo_allowed()) | |
7 | 349 return FAIL; |
350 | |
1415 | 351 #ifdef U_DEBUG |
352 u_check(FALSE); | |
353 #endif | |
7 | 354 #ifdef FEAT_NETBEANS_INTG |
355 /* | |
356 * Netbeans defines areas that cannot be modified. Bail out here when | |
357 * trying to change text in a guarded area. | |
358 */ | |
2210 | 359 if (netbeans_active()) |
7 | 360 { |
33 | 361 if (netbeans_is_guarded(top, bot)) |
362 { | |
363 EMSG(_(e_guarded)); | |
364 return FAIL; | |
365 } | |
366 if (curbuf->b_p_ro) | |
367 { | |
368 EMSG(_(e_nbreadonly)); | |
369 return FAIL; | |
370 } | |
7 | 371 } |
372 #endif | |
373 | |
374 #ifdef FEAT_AUTOCMD | |
375 /* | |
376 * Saving text for undo means we are going to make a change. Give a | |
377 * warning for a read-only file before making the change, so that the | |
378 * FileChangedRO event can replace the buffer with a read-write version | |
379 * (e.g., obtained from a source control system). | |
380 */ | |
381 change_warning(0); | |
382 #endif | |
383 | |
384 size = bot - top - 1; | |
385 | |
386 /* | |
387 * if curbuf->b_u_synced == TRUE make a new header | |
388 */ | |
389 if (curbuf->b_u_synced) | |
390 { | |
391 #ifdef FEAT_JUMPLIST | |
392 /* Need to create new entry in b_changelist. */ | |
393 curbuf->b_new_change = TRUE; | |
394 #endif | |
395 | |
753 | 396 if (p_ul >= 0) |
397 { | |
398 /* | |
399 * Make a new header entry. Do this first so that we don't mess | |
400 * up the undo info when out of memory. | |
401 */ | |
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402 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
753 | 403 if (uhp == NULL) |
404 goto nomem; | |
1415 | 405 #ifdef U_DEBUG |
406 uhp->uh_magic = UH_MAGIC; | |
407 #endif | |
753 | 408 } |
766 | 409 else |
410 uhp = NULL; | |
753 | 411 |
7 | 412 /* |
758 | 413 * If we undid more than we redid, move the entry lists before and |
414 * including curbuf->b_u_curhead to an alternate branch. | |
7 | 415 */ |
753 | 416 old_curhead = curbuf->b_u_curhead; |
417 if (old_curhead != NULL) | |
418 { | |
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419 curbuf->b_u_newhead = old_curhead->uh_next.ptr; |
753 | 420 curbuf->b_u_curhead = NULL; |
421 } | |
7 | 422 |
423 /* | |
424 * free headers to keep the size right | |
425 */ | |
426 while (curbuf->b_u_numhead > p_ul && curbuf->b_u_oldhead != NULL) | |
753 | 427 { |
758 | 428 u_header_T *uhfree = curbuf->b_u_oldhead; |
753 | 429 |
1415 | 430 if (uhfree == old_curhead) |
431 /* Can't reconnect the branch, delete all of it. */ | |
432 u_freebranch(curbuf, uhfree, &old_curhead); | |
2242
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Don't use pointers to store numbers, use a union.
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diff
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|
433 else if (uhfree->uh_alt_next.ptr == NULL) |
1415 | 434 /* There is no branch, only free one header. */ |
758 | 435 u_freeheader(curbuf, uhfree, &old_curhead); |
753 | 436 else |
437 { | |
438 /* Free the oldest alternate branch as a whole. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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2239
diff
changeset
|
439 while (uhfree->uh_alt_next.ptr != NULL) |
bc4685345719
Don't use pointers to store numbers, use a union.
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diff
changeset
|
440 uhfree = uhfree->uh_alt_next.ptr; |
758 | 441 u_freebranch(curbuf, uhfree, &old_curhead); |
753 | 442 } |
1415 | 443 #ifdef U_DEBUG |
444 u_check(TRUE); | |
445 #endif | |
753 | 446 } |
7 | 447 |
766 | 448 if (uhp == NULL) /* no undo at all */ |
7 | 449 { |
753 | 450 if (old_curhead != NULL) |
451 u_freebranch(curbuf, old_curhead, NULL); | |
7 | 452 curbuf->b_u_synced = FALSE; |
453 return OK; | |
454 } | |
455 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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parents:
2239
diff
changeset
|
456 uhp->uh_prev.ptr = NULL; |
bc4685345719
Don't use pointers to store numbers, use a union.
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parents:
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diff
changeset
|
457 uhp->uh_next.ptr = curbuf->b_u_newhead; |
bc4685345719
Don't use pointers to store numbers, use a union.
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diff
changeset
|
458 uhp->uh_alt_next.ptr = old_curhead; |
753 | 459 if (old_curhead != NULL) |
460 { | |
2242
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Don't use pointers to store numbers, use a union.
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parents:
2239
diff
changeset
|
461 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
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parents:
2239
diff
changeset
|
462 if (uhp->uh_alt_prev.ptr != NULL) |
bc4685345719
Don't use pointers to store numbers, use a union.
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parents:
2239
diff
changeset
|
463 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp; |
bc4685345719
Don't use pointers to store numbers, use a union.
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diff
changeset
|
464 old_curhead->uh_alt_prev.ptr = uhp; |
753 | 465 if (curbuf->b_u_oldhead == old_curhead) |
466 curbuf->b_u_oldhead = uhp; | |
467 } | |
1056 | 468 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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2239
diff
changeset
|
469 uhp->uh_alt_prev.ptr = NULL; |
758 | 470 if (curbuf->b_u_newhead != NULL) |
2242
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Don't use pointers to store numbers, use a union.
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parents:
2239
diff
changeset
|
471 curbuf->b_u_newhead->uh_prev.ptr = uhp; |
758 | 472 |
777 | 473 uhp->uh_seq = ++curbuf->b_u_seq_last; |
474 curbuf->b_u_seq_cur = uhp->uh_seq; | |
758 | 475 uhp->uh_time = time(NULL); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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2271
diff
changeset
|
476 uhp->uh_save_nr = 0; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
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|
477 curbuf->b_u_time_cur = uhp->uh_time + 1; |
758 | 478 |
753 | 479 uhp->uh_walk = 0; |
7 | 480 uhp->uh_entry = NULL; |
481 uhp->uh_getbot_entry = NULL; | |
482 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */ | |
483 #ifdef FEAT_VIRTUALEDIT | |
484 if (virtual_active() && curwin->w_cursor.coladd > 0) | |
485 uhp->uh_cursor_vcol = getviscol(); | |
486 else | |
487 uhp->uh_cursor_vcol = -1; | |
488 #endif | |
489 | |
490 /* save changed and buffer empty flag for undo */ | |
491 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) + | |
492 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
493 | |
692 | 494 /* save named marks and Visual marks for undo */ |
7 | 495 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); |
692 | 496 #ifdef FEAT_VISUAL |
497 uhp->uh_visual = curbuf->b_visual; | |
498 #endif | |
499 | |
7 | 500 curbuf->b_u_newhead = uhp; |
501 if (curbuf->b_u_oldhead == NULL) | |
502 curbuf->b_u_oldhead = uhp; | |
503 ++curbuf->b_u_numhead; | |
504 } | |
505 else | |
506 { | |
507 if (p_ul < 0) /* no undo at all */ | |
508 return OK; | |
509 | |
510 /* | |
511 * When saving a single line, and it has been saved just before, it | |
512 * doesn't make sense saving it again. Saves a lot of memory when | |
513 * making lots of changes inside the same line. | |
514 * This is only possible if the previous change didn't increase or | |
515 * decrease the number of lines. | |
516 * Check the ten last changes. More doesn't make sense and takes too | |
517 * long. | |
518 */ | |
519 if (size == 1) | |
520 { | |
521 uep = u_get_headentry(); | |
522 prev_uep = NULL; | |
523 for (i = 0; i < 10; ++i) | |
524 { | |
525 if (uep == NULL) | |
526 break; | |
527 | |
528 /* If lines have been inserted/deleted we give up. | |
529 * Also when the line was included in a multi-line save. */ | |
530 if ((curbuf->b_u_newhead->uh_getbot_entry != uep | |
531 ? (uep->ue_top + uep->ue_size + 1 | |
532 != (uep->ue_bot == 0 | |
533 ? curbuf->b_ml.ml_line_count + 1 | |
534 : uep->ue_bot)) | |
535 : uep->ue_lcount != curbuf->b_ml.ml_line_count) | |
536 || (uep->ue_size > 1 | |
537 && top >= uep->ue_top | |
538 && top + 2 <= uep->ue_top + uep->ue_size + 1)) | |
539 break; | |
540 | |
541 /* If it's the same line we can skip saving it again. */ | |
542 if (uep->ue_size == 1 && uep->ue_top == top) | |
543 { | |
544 if (i > 0) | |
545 { | |
546 /* It's not the last entry: get ue_bot for the last | |
547 * entry now. Following deleted/inserted lines go to | |
548 * the re-used entry. */ | |
549 u_getbot(); | |
550 curbuf->b_u_synced = FALSE; | |
551 | |
552 /* Move the found entry to become the last entry. The | |
553 * order of undo/redo doesn't matter for the entries | |
554 * we move it over, since they don't change the line | |
555 * count and don't include this line. It does matter | |
556 * for the found entry if the line count is changed by | |
557 * the executed command. */ | |
558 prev_uep->ue_next = uep->ue_next; | |
559 uep->ue_next = curbuf->b_u_newhead->uh_entry; | |
560 curbuf->b_u_newhead->uh_entry = uep; | |
561 } | |
562 | |
563 /* The executed command may change the line count. */ | |
564 if (newbot != 0) | |
565 uep->ue_bot = newbot; | |
566 else if (bot > curbuf->b_ml.ml_line_count) | |
567 uep->ue_bot = 0; | |
568 else | |
569 { | |
570 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
571 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
572 } | |
573 return OK; | |
574 } | |
575 prev_uep = uep; | |
576 uep = uep->ue_next; | |
577 } | |
578 } | |
579 | |
580 /* find line number for ue_bot for previous u_save() */ | |
581 u_getbot(); | |
582 } | |
583 | |
584 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__) | |
585 /* | |
586 * With Amiga and MSDOS 16 bit we can't handle big undo's, because | |
587 * then u_alloc_line would have to allocate a block larger than 32K | |
588 */ | |
589 if (size >= 8000) | |
590 goto nomem; | |
591 #endif | |
592 | |
593 /* | |
594 * add lines in front of entry list | |
595 */ | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
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diff
changeset
|
596 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
7 | 597 if (uep == NULL) |
598 goto nomem; | |
2215
cccb71c2c5c1
Fix uninit memory read in undo code. Fix uint32_t in proto file.
Bram Moolenaar <bram@vim.org>
parents:
2214
diff
changeset
|
599 vim_memset(uep, 0, sizeof(u_entry_T)); |
1415 | 600 #ifdef U_DEBUG |
601 uep->ue_magic = UE_MAGIC; | |
602 #endif | |
7 | 603 |
604 uep->ue_size = size; | |
605 uep->ue_top = top; | |
606 if (newbot != 0) | |
607 uep->ue_bot = newbot; | |
608 /* | |
609 * Use 0 for ue_bot if bot is below last line. | |
610 * Otherwise we have to compute ue_bot later. | |
611 */ | |
612 else if (bot > curbuf->b_ml.ml_line_count) | |
613 uep->ue_bot = 0; | |
614 else | |
615 { | |
616 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
617 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
618 } | |
619 | |
168 | 620 if (size > 0) |
7 | 621 { |
168 | 622 if ((uep->ue_array = (char_u **)U_ALLOC_LINE( |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
623 sizeof(char_u *) * size)) == NULL) |
7 | 624 { |
625 u_freeentry(uep, 0L); | |
626 goto nomem; | |
627 } | |
628 for (i = 0, lnum = top + 1; i < size; ++i) | |
629 { | |
481 | 630 fast_breakcheck(); |
631 if (got_int) | |
632 { | |
633 u_freeentry(uep, i); | |
634 return FAIL; | |
635 } | |
7 | 636 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL) |
637 { | |
638 u_freeentry(uep, i); | |
639 goto nomem; | |
640 } | |
641 } | |
642 } | |
359 | 643 else |
644 uep->ue_array = NULL; | |
7 | 645 uep->ue_next = curbuf->b_u_newhead->uh_entry; |
646 curbuf->b_u_newhead->uh_entry = uep; | |
647 curbuf->b_u_synced = FALSE; | |
648 undo_undoes = FALSE; | |
649 | |
1415 | 650 #ifdef U_DEBUG |
651 u_check(FALSE); | |
652 #endif | |
7 | 653 return OK; |
654 | |
655 nomem: | |
656 msg_silent = 0; /* must display the prompt */ | |
657 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE) | |
658 == 'y') | |
659 { | |
660 undo_off = TRUE; /* will be reset when character typed */ | |
661 return OK; | |
662 } | |
663 do_outofmem_msg((long_u)0); | |
664 return FAIL; | |
665 } | |
666 | |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
667 #if defined(FEAT_PERSISTENT_UNDO) || defined(PROTO) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
668 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
669 # define UF_START_MAGIC "Vim\237UnDo\345" /* magic at start of undofile */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
670 # define UF_START_MAGIC_LEN 9 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
671 # define UF_HEADER_MAGIC 0x5fd0 /* magic at start of header */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
672 # define UF_HEADER_END_MAGIC 0xe7aa /* magic after last header */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
673 # define UF_ENTRY_MAGIC 0xf518 /* magic at start of entry */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
674 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */ |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
675 # define UF_VERSION_PREV 1 /* 2-byte undofile version number */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
676 # define UF_VERSION 2 /* 2-byte undofile version number */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
2271
diff
changeset
|
677 # define UF_VERSION_CRYPT_PREV 0x8001 /* idem, encrypted */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
678 # define UF_VERSION_CRYPT 0x8002 /* idem, encrypted */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
679 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
680 /* extra fields for header */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
681 # define UF_LAST_SAVE_NR 1 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
682 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
683 /* extra fields for uhp */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
684 # define UHP_SAVE_NR 1 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
685 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
686 static char_u e_not_open[] = N_("E828: Cannot open undo file for writing: %s"); |
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
687 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
688 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
689 * Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE]. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
690 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
691 void |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
692 u_compute_hash(hash) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
693 char_u *hash; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
694 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
695 context_sha256_T ctx; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
696 linenr_T lnum; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
697 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
698 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
699 sha256_start(&ctx); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
700 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
701 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
702 p = ml_get(lnum); |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
703 sha256_update(&ctx, p, (UINT32_T)(STRLEN(p) + 1)); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
704 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
705 sha256_finish(&ctx, hash); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
706 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
707 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
708 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
709 * Return an allocated string of the full path of the target undofile. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
710 * When "reading" is TRUE find the file to read, go over all directories in |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
711 * 'undodir'. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
712 * When "reading" is FALSE use the first name where the directory exists. |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
713 * Returns NULL when there is no place to write or no file to read. |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
714 */ |
2236
dc2e5ec0500d
Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents:
2235
diff
changeset
|
715 char_u * |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
716 u_get_undo_file_name(buf_ffname, reading) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
717 char_u *buf_ffname; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
718 int reading; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
719 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
720 char_u *dirp; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
721 char_u dir_name[IOSIZE + 1]; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
722 char_u *munged_name = NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
723 char_u *undo_file_name = NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
724 int dir_len; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
725 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
726 struct stat st; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
727 char_u *ffname = buf_ffname; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
728 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
729 char_u fname_buf[MAXPATHL]; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
730 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
731 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
732 if (ffname == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
733 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
734 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
735 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
736 /* Expand symlink in the file name, so that we put the undo file with the |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
737 * actual file instead of with the symlink. */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
738 if (resolve_symlink(ffname, fname_buf) == OK) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
739 ffname = fname_buf; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
740 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
741 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
742 /* Loop over 'undodir'. When reading find the first file that exists. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
743 * When not reading use the first directory that exists or ".". */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
744 dirp = p_udir; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
745 while (*dirp != NUL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
746 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
747 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ","); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
748 if (dir_len == 1 && dir_name[0] == '.') |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
749 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
750 /* Use same directory as the ffname, |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
751 * "dir/name" -> "dir/.name.un~" */ |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
752 undo_file_name = vim_strnsave(ffname, (int)(STRLEN(ffname) + 5)); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
753 if (undo_file_name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
754 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
755 p = gettail(undo_file_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
756 mch_memmove(p + 1, p, STRLEN(p) + 1); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
757 *p = '.'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
758 STRCAT(p, ".un~"); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
759 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
760 else |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
761 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
762 dir_name[dir_len] = NUL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
763 if (mch_isdir(dir_name)) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
764 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
765 if (munged_name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
766 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
767 munged_name = vim_strsave(ffname); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
768 if (munged_name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
769 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
770 for (p = munged_name; *p != NUL; mb_ptr_adv(p)) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
771 if (vim_ispathsep(*p)) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
772 *p = '%'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
773 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
774 undo_file_name = concat_fnames(dir_name, munged_name, TRUE); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
775 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
776 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
777 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
778 /* When reading check if the file exists. */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
779 if (undo_file_name != NULL && (!reading |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
780 || mch_stat((char *)undo_file_name, &st) >= 0)) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
781 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
782 vim_free(undo_file_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
783 undo_file_name = NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
784 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
785 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
786 vim_free(munged_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
787 return undo_file_name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
788 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
789 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
790 static void |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
791 corruption_error(mesg, file_name) |
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
792 char *mesg; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
793 char_u *file_name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
794 { |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
795 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
796 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
797 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
798 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
799 u_free_uhp(uhp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
800 u_header_T *uhp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
801 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
802 u_entry_T *nuep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
803 u_entry_T *uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
804 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
805 uep = uhp->uh_entry; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
806 while (uep != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
807 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
808 nuep = uep->ue_next; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
809 u_freeentry(uep, uep->ue_size); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
810 uep = nuep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
811 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
812 vim_free(uhp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
813 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
814 |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
815 /* |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
816 * Like fwrite() but crypt the bytes when 'key' is set. |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
817 * Returns 1 if successful. |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
818 */ |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
819 static size_t |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
820 fwrite_crypt(buf, ptr, len, fp) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
821 buf_T *buf UNUSED; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
822 char_u *ptr; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
823 size_t len; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
824 FILE *fp; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
825 { |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
826 #ifdef FEAT_CRYPT |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
827 char_u *copy; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
828 char_u small_buf[100]; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
829 size_t i; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
830 |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
831 if (*buf->b_p_key == NUL) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
832 return fwrite(ptr, len, (size_t)1, fp); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
833 if (len < 100) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
834 copy = small_buf; /* no malloc()/free() for short strings */ |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
835 else |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
836 { |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
837 copy = lalloc(len, FALSE); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
838 if (copy == NULL) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
839 return 0; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
840 } |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
841 crypt_encode(ptr, len, copy); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
842 i = fwrite(copy, len, (size_t)1, fp); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
843 if (copy != small_buf) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
844 vim_free(copy); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
845 return i; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
846 #else |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
847 return fwrite(ptr, len, (size_t)1, fp); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
848 #endif |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
849 } |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
850 |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
851 /* |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
852 * Read a string of length "len" from "fd". |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
853 * When 'key' is set decrypt the bytes. |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
854 */ |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
855 static char_u * |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
856 read_string_decrypt(buf, fd, len) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
857 buf_T *buf UNUSED; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
858 FILE *fd; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
859 int len; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
860 { |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
861 char_u *ptr; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
862 |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
863 ptr = read_string(fd, len); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
864 #ifdef FEAT_CRYPT |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
865 if (ptr != NULL || *buf->b_p_key != NUL) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
866 crypt_decode(ptr, len); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
867 #endif |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
868 return ptr; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
869 } |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
870 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
871 static int |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
872 serialize_header(fp, buf, hash) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
873 FILE *fp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
874 buf_T *buf; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
875 char_u *hash; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
876 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
877 int len; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
878 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
879 /* Start writing, first the magic marker and undo info version. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
880 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
881 return FAIL; |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
882 |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
883 /* If the buffer is encrypted then all text bytes following will be |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
884 * encrypted. Numbers and other info is not crypted. */ |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
885 #ifdef FEAT_CRYPT |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
886 if (*buf->b_p_key) |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
887 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
888 char_u *header; |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
889 int header_len; |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
890 |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
891 put_bytes(fp, (long_u)UF_VERSION_CRYPT, 2); |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
892 header = prepare_crypt_write(buf, &header_len); |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
893 if (header == NULL) |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
894 return FAIL; |
2245
4e0124f5aee2
Optimize the blowfish crypt/decrypt code a bit more.
Bram Moolenaar <bram@vim.org>
parents:
2242
diff
changeset
|
895 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp); |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
896 vim_free(header); |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
897 if (len != 1) |
2267 | 898 { |
899 crypt_pop_state(); | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
900 return FAIL; |
2267 | 901 } |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
902 } |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
903 else |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
904 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
905 put_bytes(fp, (long_u)UF_VERSION, 2); |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
906 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
907 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
908 /* Write a hash of the buffer text, so that we can verify it is still the |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
909 * same when reading the buffer text. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
910 if (fwrite(hash, (size_t)UNDO_HASH_SIZE, (size_t)1, fp) != 1) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
911 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
912 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
913 /* buffer-specific data */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
914 put_bytes(fp, (long_u)buf->b_ml.ml_line_count, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
915 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
916 put_bytes(fp, (long_u)len, 4); |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
917 if (len > 0 && fwrite_crypt(buf, buf->b_u_line_ptr, (size_t)len, fp) != 1) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
918 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
919 put_bytes(fp, (long_u)buf->b_u_line_lnum, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
920 put_bytes(fp, (long_u)buf->b_u_line_colnr, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
921 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
922 /* Undo structures header data */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
923 put_header_ptr(fp, buf->b_u_oldhead); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
924 put_header_ptr(fp, buf->b_u_newhead); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
925 put_header_ptr(fp, buf->b_u_curhead); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
926 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
927 put_bytes(fp, (long_u)buf->b_u_numhead, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
928 put_bytes(fp, (long_u)buf->b_u_seq_last, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
929 put_bytes(fp, (long_u)buf->b_u_seq_cur, 4); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
930 put_time(fp, buf->b_u_time_cur); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
931 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
932 /* Optional fields. */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
933 putc(4, fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
934 putc(UF_LAST_SAVE_NR, fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
935 put_bytes(fp, (long_u)buf->b_u_last_save_nr, 4); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
936 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
937 putc(0, fp); /* end marker */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
938 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
939 return OK; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
940 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
941 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
942 static int |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
943 serialize_uhp(fp, buf, uhp) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
944 FILE *fp; |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
945 buf_T *buf; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
946 u_header_T *uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
947 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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|
948 int i; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
949 u_entry_T *uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
950 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
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|
951 if (put_bytes(fp, (long_u)UF_HEADER_MAGIC, 2) == FAIL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
952 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
953 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
954 put_header_ptr(fp, uhp->uh_next.ptr); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
955 put_header_ptr(fp, uhp->uh_prev.ptr); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
956 put_header_ptr(fp, uhp->uh_alt_next.ptr); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
957 put_header_ptr(fp, uhp->uh_alt_prev.ptr); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
958 put_bytes(fp, uhp->uh_seq, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
959 serialize_pos(uhp->uh_cursor, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
960 #ifdef FEAT_VIRTUALEDIT |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
961 put_bytes(fp, (long_u)uhp->uh_cursor_vcol, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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|
962 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
963 put_bytes(fp, (long_u)0, 4); |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
964 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
965 put_bytes(fp, (long_u)uhp->uh_flags, 2); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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changeset
|
966 /* Assume NMARKS will stay the same. */ |
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Made reading/writing undo info a bit more robust.
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|
967 for (i = 0; i < NMARKS; ++i) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
968 serialize_pos(uhp->uh_namedm[i], fp); |
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Made reading/writing undo info a bit more robust.
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|
969 #ifdef FEAT_VISUAL |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
970 serialize_visualinfo(&uhp->uh_visual, fp); |
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Made reading/writing undo info a bit more robust.
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|
971 #else |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
972 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
973 visualinfo_T info; |
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Made reading/writing undo info a bit more robust.
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|
974 |
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Made reading/writing undo info a bit more robust.
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|
975 memset(&info, 0, sizeof(visualinfo_T)); |
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Made reading/writing undo info a bit more robust.
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parents:
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|
976 serialize_visualinfo(&info, fp); |
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Made reading/writing undo info a bit more robust.
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|
977 } |
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Bram Moolenaar <bram@vim.org>
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|
978 #endif |
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|
979 put_time(fp, uhp->uh_time); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
980 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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|
981 /* Optional fields. */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
982 putc(4, fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
983 putc(UHP_SAVE_NR, fp); |
941ff1cd317a
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|
984 put_bytes(fp, (long_u)uhp->uh_save_nr, 4); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
985 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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|
986 putc(0, fp); /* end marker */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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changeset
|
987 |
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
988 /* Write all the entries. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
989 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) |
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Made reading/writing undo info a bit more robust.
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|
990 { |
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Made reading/writing undo info a bit more robust.
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|
991 put_bytes(fp, (long_u)UF_ENTRY_MAGIC, 2); |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
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parents:
2238
diff
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|
992 if (serialize_uep(fp, buf, uep) == FAIL) |
2238
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Made reading/writing undo info a bit more robust.
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|
993 return FAIL; |
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|
994 } |
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Made reading/writing undo info a bit more robust.
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|
995 put_bytes(fp, (long_u)UF_ENTRY_END_MAGIC, 2); |
3d0a7beb0d75
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|
996 return OK; |
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|
997 } |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
998 |
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Made reading/writing undo info a bit more robust.
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|
999 static u_header_T * |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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2271
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|
1000 unserialize_uhp(fp, file_name, new_version) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1001 FILE *fp; |
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|
1002 char_u *file_name; |
2280
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Add file save counter to undo information. Add undotree() function.
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2271
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|
1003 int new_version; |
2238
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1004 { |
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Made reading/writing undo info a bit more robust.
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|
1005 u_header_T *uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1006 int i; |
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|
1007 u_entry_T *uep, *last_uep; |
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|
1008 int c; |
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|
1009 int error; |
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diff
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|
1010 |
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|
1011 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
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|
1012 if (uhp == NULL) |
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|
1013 return NULL; |
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|
1014 vim_memset(uhp, 0, sizeof(u_header_T)); |
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|
1015 #ifdef U_DEBUG |
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|
1016 uhp->uh_magic = UH_MAGIC; |
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|
1017 #endif |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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|
1018 uhp->uh_next.seq = get4c(fp); |
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Don't use pointers to store numbers, use a union.
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|
1019 uhp->uh_prev.seq = get4c(fp); |
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Don't use pointers to store numbers, use a union.
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|
1020 uhp->uh_alt_next.seq = get4c(fp); |
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|
1021 uhp->uh_alt_prev.seq = get4c(fp); |
2238
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Made reading/writing undo info a bit more robust.
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|
1022 uhp->uh_seq = get4c(fp); |
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Made reading/writing undo info a bit more robust.
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|
1023 if (uhp->uh_seq <= 0) |
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Made reading/writing undo info a bit more robust.
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|
1024 { |
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|
1025 corruption_error("uh_seq", file_name); |
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|
1026 vim_free(uhp); |
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Made reading/writing undo info a bit more robust.
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|
1027 return NULL; |
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|
1028 } |
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|
1029 unserialize_pos(&uhp->uh_cursor, fp); |
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Made reading/writing undo info a bit more robust.
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|
1030 #ifdef FEAT_VIRTUALEDIT |
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Made reading/writing undo info a bit more robust.
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diff
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|
1031 uhp->uh_cursor_vcol = get4c(fp); |
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Made reading/writing undo info a bit more robust.
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|
1032 #else |
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Made reading/writing undo info a bit more robust.
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|
1033 (void)get4c(fp); |
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Made reading/writing undo info a bit more robust.
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|
1034 #endif |
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Made reading/writing undo info a bit more robust.
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|
1035 uhp->uh_flags = get2c(fp); |
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Made reading/writing undo info a bit more robust.
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changeset
|
1036 for (i = 0; i < NMARKS; ++i) |
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Made reading/writing undo info a bit more robust.
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|
1037 unserialize_pos(&uhp->uh_namedm[i], fp); |
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Made reading/writing undo info a bit more robust.
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|
1038 #ifdef FEAT_VISUAL |
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Made reading/writing undo info a bit more robust.
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|
1039 unserialize_visualinfo(&uhp->uh_visual, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1040 #else |
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Made reading/writing undo info a bit more robust.
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|
1041 { |
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Made reading/writing undo info a bit more robust.
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|
1042 visualinfo_T info; |
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Made reading/writing undo info a bit more robust.
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changeset
|
1043 unserialize_visualinfo(&info, fp); |
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Made reading/writing undo info a bit more robust.
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|
1044 } |
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Made reading/writing undo info a bit more robust.
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|
1045 #endif |
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Made reading/writing undo info a bit more robust.
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|
1046 uhp->uh_time = get8ctime(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
1047 |
2280
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Add file save counter to undo information. Add undotree() function.
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|
1048 /* Optional fields. */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1049 if (new_version) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1050 for (;;) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1051 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
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|
1052 int len = getc(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1053 int what; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1054 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1055 if (len == 0) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
1056 break; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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changeset
|
1057 what = getc(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1058 switch (what) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1059 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1060 case UHP_SAVE_NR: |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1061 uhp->uh_save_nr = get4c(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1062 break; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1063 default: |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1064 /* field not supported, skip */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1065 while (--len >= 0) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1066 (void)getc(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1067 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1068 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1069 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1070 /* Unserialize the uep list. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1071 last_uep = NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1072 while ((c = get2c(fp)) == UF_ENTRY_MAGIC) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1073 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1074 error = FALSE; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1075 uep = unserialize_uep(fp, &error, file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1076 if (last_uep == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1077 uhp->uh_entry = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1078 else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1079 last_uep->ue_next = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1080 last_uep = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1081 if (uep == NULL || error) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1082 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1083 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1084 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1085 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1086 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1087 if (c != UF_ENTRY_END_MAGIC) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1088 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1089 corruption_error("entry end", file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1090 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1091 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1092 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1093 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1094 return uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1095 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1096 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1097 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1098 * Serialize "uep" to "fp". |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1099 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1100 static int |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1101 serialize_uep(fp, buf, uep) |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1102 FILE *fp; |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1103 buf_T *buf; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1104 u_entry_T *uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1105 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1106 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1107 size_t len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1108 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1109 put_bytes(fp, (long_u)uep->ue_top, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1110 put_bytes(fp, (long_u)uep->ue_bot, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1111 put_bytes(fp, (long_u)uep->ue_lcount, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1112 put_bytes(fp, (long_u)uep->ue_size, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1113 for (i = 0; i < uep->ue_size; ++i) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1114 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1115 len = STRLEN(uep->ue_array[i]); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1116 if (put_bytes(fp, (long_u)len, 4) == FAIL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1117 return FAIL; |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1118 if (len > 0 && fwrite_crypt(buf, uep->ue_array[i], len, fp) != 1) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1119 return FAIL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1120 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1121 return OK; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1122 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1123 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1124 static u_entry_T * |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1125 unserialize_uep(fp, error, file_name) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1126 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1127 int *error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1128 char_u *file_name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1129 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1130 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1131 u_entry_T *uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1132 char_u **array; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1133 char_u *line; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1134 int line_len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1135 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1136 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1137 if (uep == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1138 return NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1139 vim_memset(uep, 0, sizeof(u_entry_T)); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1140 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1141 uep->ue_magic = UE_MAGIC; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1142 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1143 uep->ue_top = get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1144 uep->ue_bot = get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1145 uep->ue_lcount = get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1146 uep->ue_size = get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1147 if (uep->ue_size > 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1148 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1149 array = (char_u **)U_ALLOC_LINE(sizeof(char_u *) * uep->ue_size); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1150 if (array == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1151 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1152 *error = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1153 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1154 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1155 vim_memset(array, 0, sizeof(char_u *) * uep->ue_size); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1156 } |
2232
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents:
2231
diff
changeset
|
1157 else |
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents:
2231
diff
changeset
|
1158 array = NULL; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1159 uep->ue_array = array; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1160 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1161 for (i = 0; i < uep->ue_size; ++i) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1162 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1163 line_len = get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1164 if (line_len >= 0) |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1165 line = read_string_decrypt(curbuf, fp, line_len); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1166 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1167 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1168 line = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1169 corruption_error("line length", file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1170 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1171 if (line == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1172 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1173 *error = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1174 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1175 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1176 array[i] = line; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1177 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1178 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
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|
1179 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1180 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1181 /* |
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Various improvements to undo file code to make it more robust.
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parents:
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diff
changeset
|
1182 * Serialize "pos" to "fp". |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
changeset
|
1183 */ |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1184 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1185 serialize_pos(pos, fp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
changeset
|
1186 pos_T pos; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1187 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
changeset
|
1188 { |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1189 put_bytes(fp, (long_u)pos.lnum, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1190 put_bytes(fp, (long_u)pos.col, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1191 #ifdef FEAT_VIRTUALEDIT |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1192 put_bytes(fp, (long_u)pos.coladd, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
changeset
|
1193 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1194 put_bytes(fp, (long_u)0, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1195 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1196 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1197 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1198 /* |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1199 * Unserialize the pos_T at the current position in fp. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1200 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1201 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1202 unserialize_pos(pos, fp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1203 pos_T *pos; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1204 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1205 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1206 pos->lnum = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1207 if (pos->lnum < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1208 pos->lnum = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1209 pos->col = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1210 if (pos->col < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1211 pos->col = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1212 #ifdef FEAT_VIRTUALEDIT |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1213 pos->coladd = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1214 if (pos->coladd < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1215 pos->coladd = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1216 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1217 (void)get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1218 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1219 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1220 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1221 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1222 * Serialize "info" to "fp". |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1223 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1224 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1225 serialize_visualinfo(info, fp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1226 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1227 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1228 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1229 serialize_pos(info->vi_start, fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1230 serialize_pos(info->vi_end, fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1231 put_bytes(fp, (long_u)info->vi_mode, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1232 put_bytes(fp, (long_u)info->vi_curswant, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1233 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1234 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1235 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1236 * Unserialize the visualinfo_T at the current position in fp. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1237 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1238 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1239 unserialize_visualinfo(info, fp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1240 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1241 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1242 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1243 unserialize_pos(&info->vi_start, fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1244 unserialize_pos(&info->vi_end, fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1245 info->vi_mode = get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1246 info->vi_curswant = get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1247 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1248 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1249 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1250 * Write the pointer to an undo header. Instead of writing the pointer itself |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1251 * we use the sequence number of the header. This is converted back to |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1252 * pointers when reading. */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1253 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1254 put_header_ptr(fp, uhp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1255 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1256 u_header_T *uhp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1257 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1258 put_bytes(fp, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1259 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1260 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1261 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1262 * Write the undo tree in an undo file. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1263 * When "name" is not NULL, use it as the name of the undo file. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1264 * Otherwise use buf->b_ffname to generate the undo file name. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1265 * "buf" must never be null, buf->b_ffname is used to obtain the original file |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1266 * permissions. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1267 * "forceit" is TRUE for ":wundo!", FALSE otherwise. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1268 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1269 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1270 void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1271 u_write_undo(name, forceit, buf, hash) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1272 char_u *name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1273 int forceit; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1274 buf_T *buf; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1275 char_u *hash; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1276 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1277 u_header_T *uhp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1278 char_u *file_name; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1279 int mark; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1280 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1281 int headers_written = 0; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1282 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1283 int fd; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1284 FILE *fp = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1285 int perm; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1286 int write_ok = FALSE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1287 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1288 int st_old_valid = FALSE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1289 struct stat st_old; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1290 struct stat st_new; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1291 #endif |
2267 | 1292 #ifdef FEAT_CRYPT |
1293 int do_crypt = FALSE; | |
1294 #endif | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1295 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1296 if (name == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1297 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1298 file_name = u_get_undo_file_name(buf->b_ffname, FALSE); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1299 if (file_name == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1300 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1301 if (p_verbose > 0) |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1302 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1303 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1304 smsg((char_u *) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1305 _("Cannot write undo file in any directory in 'undodir'")); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1306 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1307 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1308 return; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1309 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1310 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1311 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1312 file_name = name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1313 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1314 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1315 * Decide about the permission to use for the undo file. If the buffer |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1316 * has a name use the permission of the original file. Otherwise only |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1317 * allow the user to access the undo file. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1318 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1319 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1320 if (buf->b_ffname != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1321 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1322 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1323 if (mch_stat((char *)buf->b_ffname, &st_old) >= 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1324 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1325 perm = st_old.st_mode; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1326 st_old_valid = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1327 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1328 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1329 perm = mch_getperm(buf->b_ffname); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1330 if (perm < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1331 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1332 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1333 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1334 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1335 /* strip any s-bit */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1336 perm = perm & 0777; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1337 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1338 /* If the undo file already exists, verify that it actually is an undo |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1339 * file, and delete it. */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1340 if (mch_getperm(file_name) >= 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1341 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1342 if (name == NULL || !forceit) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1343 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1344 /* Check we can read it and it's an undo file. */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1345 fd = mch_open((char *)file_name, O_RDONLY|O_EXTRA, 0); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1346 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1347 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1348 if (name != NULL || p_verbose > 0) |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1349 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1350 if (name == NULL) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1351 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1352 smsg((char_u *) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1353 _("Will not overwrite with undo file, cannot read: %s"), |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1354 file_name); |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1355 if (name == NULL) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1356 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1357 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1358 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1359 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1360 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1361 { |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1362 char_u mbuf[UF_START_MAGIC_LEN]; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1363 int len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1364 |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1365 len = vim_read(fd, mbuf, UF_START_MAGIC_LEN); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1366 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1367 if (len < UF_START_MAGIC_LEN |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1368 || memcmp(mbuf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1369 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1370 if (name != NULL || p_verbose > 0) |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1371 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1372 if (name == NULL) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1373 verbose_enter(); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1374 smsg((char_u *) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1375 _("Will not overwrite, this is not an undo file: %s"), |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1376 file_name); |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1377 if (name == NULL) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1378 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1379 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1380 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1381 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1382 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1383 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1384 mch_remove(file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1385 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1386 |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1387 /* If there is no undo information at all, quit here after deleting any |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1388 * existing undo file. */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1389 if (buf->b_u_numhead == 0 && buf->b_u_line_ptr == NULL) |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1390 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1391 if (p_verbose > 0) |
2262 | 1392 verb_msg((char_u *)_("Skipping undo file write, nothing to undo")); |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1393 goto theend; |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1394 } |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1395 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1396 fd = mch_open((char *)file_name, |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1397 O_CREAT|O_EXTRA|O_WRONLY|O_EXCL|O_NOFOLLOW, perm); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1398 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1399 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1400 EMSG2(_(e_not_open), file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1401 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1402 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1403 (void)mch_setperm(file_name, perm); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1404 if (p_verbose > 0) |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1405 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1406 verbose_enter(); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1407 smsg((char_u *)_("Writing undo file: %s"), file_name); |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1408 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1409 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1410 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1411 #ifdef U_DEBUG |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1412 /* Check there is no problem in undo info before writing. */ |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1413 u_check(FALSE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1414 #endif |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1415 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1416 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1417 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1418 * Try to set the group of the undo file same as the original file. If |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1419 * this fails, set the protection bits for the group same as the |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1420 * protection bits for others. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1421 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1422 if (st_old_valid && (mch_stat((char *)file_name, &st_new) >= 0 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1423 && st_new.st_gid != st_old.st_gid |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1424 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1425 && fchown(fd, (uid_t)-1, st_old.st_gid) != 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1426 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1427 ) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1428 mch_setperm(file_name, (perm & 0707) | ((perm & 07) << 3)); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1429 # ifdef HAVE_SELINUX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1430 if (buf->b_ffname != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1431 mch_copy_sec(buf->b_ffname, file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1432 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1433 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1434 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1435 fp = fdopen(fd, "w"); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1436 if (fp == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1437 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1438 EMSG2(_(e_not_open), file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1439 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1440 mch_remove(file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1441 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1442 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1443 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1444 /* Undo must be synced. */ |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1445 u_sync(TRUE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1446 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1447 /* Increase the write count, store it in the last undo header, what would |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1448 * be used for "u". */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1449 ++buf->b_u_last_save_nr; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1450 uhp = buf->b_u_curhead; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1451 if (uhp != NULL) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1452 uhp = uhp->uh_next.ptr; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1453 else |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1454 uhp = buf->b_u_newhead; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1455 if (uhp != NULL) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1456 uhp->uh_save_nr = buf->b_u_last_save_nr; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1457 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1458 /* |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1459 * Write the header. |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1460 */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1461 if (serialize_header(fp, buf, hash) == FAIL) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1462 goto write_error; |
2267 | 1463 #ifdef FEAT_CRYPT |
1464 if (*buf->b_p_key) | |
1465 do_crypt = TRUE; | |
1466 #endif | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1467 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1468 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1469 * Iteratively serialize UHPs and their UEPs from the top down. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1470 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1471 mark = ++lastmark; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1472 uhp = buf->b_u_oldhead; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1473 while (uhp != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1474 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1475 /* Serialize current UHP if we haven't seen it */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1476 if (uhp->uh_walk != mark) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1477 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1478 uhp->uh_walk = mark; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1479 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1480 ++headers_written; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1481 #endif |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1482 if (serialize_uhp(fp, buf, uhp) == FAIL) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1483 goto write_error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1484 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1485 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1486 /* Now walk through the tree - algorithm from undo_time(). */ |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1487 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1488 uhp = uhp->uh_prev.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1489 else if (uhp->uh_alt_next.ptr != NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1490 && uhp->uh_alt_next.ptr->uh_walk != mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1491 uhp = uhp->uh_alt_next.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1492 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1493 && uhp->uh_next.ptr->uh_walk != mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1494 uhp = uhp->uh_next.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1495 else if (uhp->uh_alt_prev.ptr != NULL) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1496 uhp = uhp->uh_alt_prev.ptr; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1497 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1498 uhp = uhp->uh_next.ptr; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1499 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1500 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1501 if (put_bytes(fp, (long_u)UF_HEADER_END_MAGIC, 2) == OK) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1502 write_ok = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1503 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1504 if (headers_written != buf->b_u_numhead) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1505 EMSG3("Written %ld headers, but numhead is %ld", |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1506 headers_written, buf->b_u_numhead); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1507 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1508 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1509 write_error: |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1510 fclose(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1511 if (!write_ok) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1512 EMSG2(_("E829: write error in undo file: %s"), file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1513 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1514 #if defined(MACOS_CLASSIC) || defined(WIN3264) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1515 /* Copy file attributes; for systems where this can only be done after |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1516 * closing the file. */ |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1517 if (buf->b_ffname != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1518 (void)mch_copy_file_attribute(buf->b_ffname, file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1519 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1520 #ifdef HAVE_ACL |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1521 if (buf->b_ffname != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1522 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1523 vim_acl_T acl; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1524 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1525 /* For systems that support ACL: get the ACL from the original file. */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1526 acl = mch_get_acl(buf->b_ffname); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1527 mch_set_acl(file_name, acl); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1528 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1529 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1530 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1531 theend: |
2267 | 1532 #ifdef FEAT_CRYPT |
1533 if (do_crypt) | |
1534 crypt_pop_state(); | |
1535 #endif | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1536 if (file_name != name) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1537 vim_free(file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1538 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1539 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1540 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1541 * Load the undo tree from an undo file. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1542 * If "name" is not NULL use it as the undo file name. This also means being |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1543 * a bit more verbose. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1544 * Otherwise use curbuf->b_ffname to generate the undo file name. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1545 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1546 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1547 void |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1548 u_read_undo(name, hash, orig_name) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1549 char_u *name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1550 char_u *hash; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1551 char_u *orig_name; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1552 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1553 char_u *file_name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1554 FILE *fp; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1555 long version, str_len; |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1556 int new_version; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1557 char_u *line_ptr = NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1558 linenr_T line_lnum; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1559 colnr_T line_colnr; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1560 linenr_T line_count; |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
1561 int num_head = 0; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1562 long old_header_seq, new_header_seq, cur_header_seq; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1563 long seq_last, seq_cur; |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1564 long_u last_save_nr = 0; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1565 short old_idx = -1, new_idx = -1, cur_idx = -1; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1566 long num_read_uhps = 0; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1567 time_t seq_time; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1568 int i, j; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1569 int c; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1570 u_header_T *uhp; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1571 u_header_T **uhp_table = NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1572 char_u read_hash[UNDO_HASH_SIZE]; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1573 char_u magic_buf[UF_START_MAGIC_LEN]; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1574 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1575 int *uhp_table_used; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1576 #endif |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1577 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1578 struct stat st_orig; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1579 struct stat st_undo; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1580 #endif |
2267 | 1581 #ifdef FEAT_CRYPT |
1582 int do_decrypt = FALSE; | |
1583 #endif | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1584 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1585 if (name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1586 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1587 file_name = u_get_undo_file_name(curbuf->b_ffname, TRUE); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1588 if (file_name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1589 return; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1590 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1591 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1592 /* For safety we only read an undo file if the owner is equal to the |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1593 * owner of the text file. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1594 if (mch_stat((char *)orig_name, &st_orig) >= 0 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1595 && mch_stat((char *)file_name, &st_undo) >= 0 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1596 && st_orig.st_uid != st_undo.st_uid) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1597 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1598 if (p_verbose > 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1599 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1600 verbose_enter(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1601 smsg((char_u *)_("Not reading undo file, owner differs: %s"), |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1602 file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1603 verbose_leave(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1604 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1605 return; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1606 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1607 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1608 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1609 else |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1610 file_name = name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1611 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1612 if (p_verbose > 0) |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1613 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1614 verbose_enter(); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1615 smsg((char_u *)_("Reading undo file: %s"), file_name); |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1616 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1617 } |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1618 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1619 fp = mch_fopen((char *)file_name, "r"); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1620 if (fp == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1621 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1622 if (name != NULL || p_verbose > 0) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1623 EMSG2(_("E822: Cannot open undo file for reading: %s"), file_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1624 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1625 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1626 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1627 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1628 * Read the undo file header. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1629 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1630 if (fread(magic_buf, UF_START_MAGIC_LEN, 1, fp) != 1 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1631 || memcmp(magic_buf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1632 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1633 EMSG2(_("E823: Not an undo file: %s"), file_name); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1634 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1635 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1636 version = get2c(fp); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1637 if (version == UF_VERSION_CRYPT || version == UF_VERSION_CRYPT_PREV) |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1638 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1639 #ifdef FEAT_CRYPT |
2251
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1640 if (*curbuf->b_p_key == NUL) |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1641 { |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1642 EMSG2(_("E832: Non-encrypted file has encrypted undo file: %s"), |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1643 file_name); |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1644 goto error; |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1645 } |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1646 if (prepare_crypt_read(fp) == FAIL) |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1647 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1648 EMSG2(_("E826: Undo file decryption failed: %s"), file_name); |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1649 goto error; |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1650 } |
2267 | 1651 do_decrypt = TRUE; |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1652 #else |
2251
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1653 EMSG2(_("E827: Undo file is encrypted: %s"), file_name); |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1654 goto error; |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1655 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1656 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1657 else if (version != UF_VERSION && version != UF_VERSION_PREV) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1658 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1659 EMSG2(_("E824: Incompatible undo file: %s"), file_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1660 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1661 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1662 new_version = (version == UF_VERSION || version == UF_VERSION_CRYPT); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1663 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1664 if (fread(read_hash, UNDO_HASH_SIZE, 1, fp) != 1) |
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1665 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1666 corruption_error("hash", file_name); |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1667 goto error; |
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1668 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1669 line_count = (linenr_T)get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1670 if (memcmp(hash, read_hash, UNDO_HASH_SIZE) != 0 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1671 || line_count != curbuf->b_ml.ml_line_count) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1672 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1673 if (p_verbose > 0 || name != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1674 { |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1675 if (name == NULL) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1676 verbose_enter(); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1677 give_warning((char_u *) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1678 _("File contents changed, cannot use undo info"), TRUE); |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1679 if (name == NULL) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1680 verbose_leave(); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1681 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1682 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1683 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1684 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1685 /* Read undo data for "U" command. */ |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1686 str_len = get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1687 if (str_len < 0) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1688 goto error; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1689 if (str_len > 0) |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1690 line_ptr = read_string_decrypt(curbuf, fp, str_len); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1691 line_lnum = (linenr_T)get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1692 line_colnr = (colnr_T)get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1693 if (line_lnum < 0 || line_colnr < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1694 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1695 corruption_error("line lnum/col", file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1696 goto error; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1697 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1698 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1699 /* Begin general undo data */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1700 old_header_seq = get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1701 new_header_seq = get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1702 cur_header_seq = get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1703 num_head = get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1704 seq_last = get4c(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1705 seq_cur = get4c(fp); |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1706 seq_time = get8ctime(fp); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1707 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1708 /* Optional header fields, not in previous version. */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1709 if (new_version) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1710 for (;;) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1711 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1712 int len = getc(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1713 int what; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1714 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1715 if (len == 0 || len == EOF) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1716 break; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1717 what = getc(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1718 switch (what) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1719 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1720 case UF_LAST_SAVE_NR: |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1721 last_save_nr = get4c(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1722 break; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1723 default: |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1724 /* field not supported, skip */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1725 while (--len >= 0) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1726 (void)getc(fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1727 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1728 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1729 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1730 /* uhp_table will store the freshly created undo headers we allocate |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1731 * until we insert them into curbuf. The table remains sorted by the |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1732 * sequence numbers of the headers. |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1733 * When there are no headers uhp_table is NULL. */ |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1734 if (num_head > 0) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1735 { |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1736 uhp_table = (u_header_T **)U_ALLOC_LINE( |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1737 num_head * sizeof(u_header_T *)); |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1738 if (uhp_table == NULL) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1739 goto error; |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1740 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1741 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1742 while ((c = get2c(fp)) == UF_HEADER_MAGIC) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1743 { |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1744 if (num_read_uhps >= num_head) |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1745 { |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1746 corruption_error("num_head too small", file_name); |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1747 goto error; |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1748 } |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1749 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1750 uhp = unserialize_uhp(fp, file_name, new_version); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1751 if (uhp == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1752 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1753 uhp_table[num_read_uhps++] = uhp; |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1754 } |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1755 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1756 if (num_read_uhps != num_head) |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1757 { |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1758 corruption_error("num_head", file_name); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1759 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1760 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1761 if (c != UF_HEADER_END_MAGIC) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1762 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1763 corruption_error("end marker", file_name); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1764 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1765 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1766 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1767 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1768 uhp_table_used = (int *)alloc_clear( |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1769 (unsigned)(sizeof(int) * num_head + 1)); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1770 # define SET_FLAG(j) ++uhp_table_used[j] |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1771 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1772 # define SET_FLAG(j) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1773 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1774 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1775 /* We have put all of the headers into a table. Now we iterate through the |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1776 * table and swizzle each sequence number we have stored in uh_*_seq into |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1777 * a pointer corresponding to the header with that sequence number. */ |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1778 for (i = 0; i < num_head; i++) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1779 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1780 uhp = uhp_table[i]; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1781 if (uhp == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1782 continue; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1783 for (j = 0; j < num_head; j++) |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1784 if (uhp_table[j] != NULL && i != j |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1785 && uhp_table[i]->uh_seq == uhp_table[j]->uh_seq) |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1786 { |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1787 corruption_error("duplicate uh_seq", file_name); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1788 goto error; |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1789 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1790 for (j = 0; j < num_head; j++) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1791 if (uhp_table[j] != NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1792 && uhp_table[j]->uh_seq == uhp->uh_next.seq) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1793 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1794 uhp->uh_next.ptr = uhp_table[j]; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1795 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1796 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1797 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1798 for (j = 0; j < num_head; j++) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1799 if (uhp_table[j] != NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1800 && uhp_table[j]->uh_seq == uhp->uh_prev.seq) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1801 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1802 uhp->uh_prev.ptr = uhp_table[j]; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1803 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1804 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1805 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1806 for (j = 0; j < num_head; j++) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1807 if (uhp_table[j] != NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1808 && uhp_table[j]->uh_seq == uhp->uh_alt_next.seq) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1809 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1810 uhp->uh_alt_next.ptr = uhp_table[j]; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1811 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1812 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1813 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1814 for (j = 0; j < num_head; j++) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1815 if (uhp_table[j] != NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1816 && uhp_table[j]->uh_seq == uhp->uh_alt_prev.seq) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1817 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1818 uhp->uh_alt_prev.ptr = uhp_table[j]; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1819 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1820 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1821 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1822 if (old_header_seq > 0 && old_idx < 0 && uhp->uh_seq == old_header_seq) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1823 { |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1824 old_idx = i; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1825 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1826 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1827 if (new_header_seq > 0 && new_idx < 0 && uhp->uh_seq == new_header_seq) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1828 { |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1829 new_idx = i; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1830 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1831 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1832 if (cur_header_seq > 0 && cur_idx < 0 && uhp->uh_seq == cur_header_seq) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1833 { |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1834 cur_idx = i; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1835 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1836 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1837 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1838 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1839 /* Now that we have read the undo info successfully, free the current undo |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1840 * info and use the info from the file. */ |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1841 u_blockfree(curbuf); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1842 curbuf->b_u_oldhead = old_idx < 0 ? NULL : uhp_table[old_idx]; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1843 curbuf->b_u_newhead = new_idx < 0 ? NULL : uhp_table[new_idx]; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1844 curbuf->b_u_curhead = cur_idx < 0 ? NULL : uhp_table[cur_idx]; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1845 curbuf->b_u_line_ptr = line_ptr; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1846 curbuf->b_u_line_lnum = line_lnum; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1847 curbuf->b_u_line_colnr = line_colnr; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1848 curbuf->b_u_numhead = num_head; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1849 curbuf->b_u_seq_last = seq_last; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1850 curbuf->b_u_seq_cur = seq_cur; |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1851 curbuf->b_u_time_cur = seq_time; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1852 curbuf->b_u_last_save_nr = last_save_nr; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1853 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1854 curbuf->b_u_synced = TRUE; |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1855 vim_free(uhp_table); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1856 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1857 #ifdef U_DEBUG |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1858 for (i = 0; i < num_head; ++i) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1859 if (uhp_table_used[i] == 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1860 EMSGN("uhp_table entry %ld not used, leaking memory", i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1861 vim_free(uhp_table_used); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1862 u_check(TRUE); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1863 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1864 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1865 if (name != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1866 smsg((char_u *)_("Finished reading undo file %s"), file_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1867 goto theend; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1868 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1869 error: |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1870 vim_free(line_ptr); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1871 if (uhp_table != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1872 { |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1873 for (i = 0; i < num_read_uhps; i++) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1874 if (uhp_table[i] != NULL) |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1875 u_free_uhp(uhp_table[i]); |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1876 vim_free(uhp_table); |
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1877 } |
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1878 |
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1879 theend: |
2267 | 1880 #ifdef FEAT_CRYPT |
1881 if (do_decrypt) | |
1882 crypt_pop_state(); | |
1883 #endif | |
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1884 if (fp != NULL) |
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1885 fclose(fp); |
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1886 if (file_name != name) |
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1887 vim_free(file_name); |
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1888 return; |
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1889 } |
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1890 |
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1891 #endif /* FEAT_PERSISTENT_UNDO */ |
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1892 |
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1893 |
7 | 1894 /* |
1895 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible). | |
1896 * If 'cpoptions' does not contain 'u': Always undo. | |
1897 */ | |
1898 void | |
1899 u_undo(count) | |
1900 int count; | |
1901 { | |
1902 /* | |
1903 * If we get an undo command while executing a macro, we behave like the | |
1904 * original vi. If this happens twice in one macro the result will not | |
1905 * be compatible. | |
1906 */ | |
1907 if (curbuf->b_u_synced == FALSE) | |
1908 { | |
825 | 1909 u_sync(TRUE); |
7 | 1910 count = 1; |
1911 } | |
1912 | |
1913 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
1914 undo_undoes = TRUE; | |
1915 else | |
1916 undo_undoes = !undo_undoes; | |
1917 u_doit(count); | |
1918 } | |
1919 | |
1920 /* | |
1921 * If 'cpoptions' contains 'u': Repeat the previous undo or redo. | |
1922 * If 'cpoptions' does not contain 'u': Always redo. | |
1923 */ | |
1924 void | |
1925 u_redo(count) | |
1926 int count; | |
1927 { | |
1928 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
1929 undo_undoes = FALSE; | |
1930 u_doit(count); | |
1931 } | |
1932 | |
1933 /* | |
1934 * Undo or redo, depending on 'undo_undoes', 'count' times. | |
1935 */ | |
1936 static void | |
777 | 1937 u_doit(startcount) |
1938 int startcount; | |
7 | 1939 { |
777 | 1940 int count = startcount; |
1941 | |
632 | 1942 if (!undo_allowed()) |
7 | 1943 return; |
1944 | |
1945 u_newcount = 0; | |
1946 u_oldcount = 0; | |
179 | 1947 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
1948 u_oldcount = -1; | |
7 | 1949 while (count--) |
1950 { | |
1951 if (undo_undoes) | |
1952 { | |
1953 if (curbuf->b_u_curhead == NULL) /* first undo */ | |
1954 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
1955 else if (p_ul > 0) /* multi level undo */ | |
1956 /* get next undo */ | |
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1957 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr; |
7 | 1958 /* nothing to undo */ |
1959 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL) | |
1960 { | |
1961 /* stick curbuf->b_u_curhead at end */ | |
1962 curbuf->b_u_curhead = curbuf->b_u_oldhead; | |
1963 beep_flush(); | |
777 | 1964 if (count == startcount - 1) |
1965 { | |
1966 MSG(_("Already at oldest change")); | |
1967 return; | |
1968 } | |
7 | 1969 break; |
1970 } | |
1971 | |
777 | 1972 u_undoredo(TRUE); |
7 | 1973 } |
1974 else | |
1975 { | |
1976 if (curbuf->b_u_curhead == NULL || p_ul <= 0) | |
1977 { | |
1978 beep_flush(); /* nothing to redo */ | |
777 | 1979 if (count == startcount - 1) |
1980 { | |
1981 MSG(_("Already at newest change")); | |
1982 return; | |
1983 } | |
7 | 1984 break; |
1985 } | |
1986 | |
777 | 1987 u_undoredo(FALSE); |
753 | 1988 |
1989 /* Advance for next redo. Set "newhead" when at the end of the | |
1990 * redoable changes. */ | |
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1991 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
753 | 1992 curbuf->b_u_newhead = curbuf->b_u_curhead; |
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1993 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr; |
7 | 1994 } |
1995 } | |
798 | 1996 u_undo_end(undo_undoes, FALSE); |
753 | 1997 } |
1998 | |
1999 /* | |
2000 * Undo or redo over the timeline. | |
2001 * When "step" is negative go back in time, otherwise goes forward in time. | |
758 | 2002 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as |
2003 * seconds. | |
772 | 2004 * When "absolute" is TRUE use "step" as the sequence number to jump to. |
2005 * "sec" must be FALSE then. | |
753 | 2006 */ |
2007 void | |
772 | 2008 undo_time(step, sec, absolute) |
758 | 2009 long step; |
2010 int sec; | |
772 | 2011 int absolute; |
753 | 2012 { |
2013 long target; | |
2014 long closest; | |
758 | 2015 long closest_start; |
2016 long closest_seq = 0; | |
2017 long val; | |
753 | 2018 u_header_T *uhp; |
2019 u_header_T *last; | |
2020 int mark; | |
2021 int nomark; | |
2022 int round; | |
758 | 2023 int dosec = sec; |
2024 int above = FALSE; | |
794 | 2025 int did_undo = TRUE; |
753 | 2026 |
766 | 2027 /* First make sure the current undoable change is synced. */ |
2028 if (curbuf->b_u_synced == FALSE) | |
825 | 2029 u_sync(TRUE); |
766 | 2030 |
753 | 2031 u_newcount = 0; |
2032 u_oldcount = 0; | |
179 | 2033 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
753 | 2034 u_oldcount = -1; |
2035 | |
777 | 2036 /* "target" is the node below which we want to be. |
2037 * Init "closest" to a value we can't reach. */ | |
772 | 2038 if (absolute) |
2039 { | |
2040 target = step; | |
777 | 2041 closest = -1; |
753 | 2042 } |
2043 else | |
2044 { | |
777 | 2045 /* When doing computations with time_t subtract starttime, because |
2046 * time_t converted to a long may result in a wrong number. */ | |
758 | 2047 if (sec) |
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2048 target = (long)(curbuf->b_u_time_cur - starttime) + step; |
777 | 2049 else |
2050 target = curbuf->b_u_seq_cur + step; | |
2051 if (step < 0) | |
758 | 2052 { |
777 | 2053 if (target < 0) |
2054 target = 0; | |
2055 closest = -1; | |
758 | 2056 } |
2057 else | |
2058 { | |
777 | 2059 if (sec) |
798 | 2060 closest = (long)(time(NULL) - starttime + 1); |
777 | 2061 else |
2062 closest = curbuf->b_u_seq_last + 2; | |
2063 if (target >= closest) | |
2064 target = closest - 1; | |
758 | 2065 } |
753 | 2066 } |
758 | 2067 closest_start = closest; |
777 | 2068 closest_seq = curbuf->b_u_seq_cur; |
753 | 2069 |
758 | 2070 /* |
2071 * May do this twice: | |
753 | 2072 * 1. Search for "target", update "closest" to the best match found. |
758 | 2073 * 2. If "target" not found search for "closest". |
2074 * | |
2075 * When using the closest time we use the sequence number in the second | |
2076 * round, because there may be several entries with the same time. | |
2077 */ | |
753 | 2078 for (round = 1; round <= 2; ++round) |
2079 { | |
2080 /* Find the path from the current state to where we want to go. The | |
2081 * desired state can be anywhere in the undo tree, need to go all over | |
2082 * it. We put "nomark" in uh_walk where we have been without success, | |
2083 * "mark" where it could possibly be. */ | |
2084 mark = ++lastmark; | |
2085 nomark = ++lastmark; | |
2086 | |
2087 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */ | |
2088 uhp = curbuf->b_u_newhead; | |
2089 else | |
2090 uhp = curbuf->b_u_curhead; | |
2091 | |
2092 while (uhp != NULL) | |
2093 { | |
2094 uhp->uh_walk = mark; | |
798 | 2095 val = (long)(dosec ? (uhp->uh_time - starttime) : uhp->uh_seq); |
753 | 2096 |
758 | 2097 if (round == 1) |
2098 { | |
2099 /* Remember the header that is closest to the target. | |
2100 * It must be at least in the right direction (checked with | |
777 | 2101 * "b_u_seq_cur"). When the timestamp is equal find the |
758 | 2102 * highest/lowest sequence number. */ |
777 | 2103 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur |
2104 : uhp->uh_seq > curbuf->b_u_seq_cur) | |
2105 && ((dosec && val == closest) | |
2106 ? (step < 0 | |
2107 ? uhp->uh_seq < closest_seq | |
2108 : uhp->uh_seq > closest_seq) | |
2109 : closest == closest_start | |
2110 || (val > target | |
2111 ? (closest > target | |
2112 ? val - target <= closest - target | |
2113 : val - target <= target - closest) | |
2114 : (closest > target | |
2115 ? target - val <= closest - target | |
2116 : target - val <= target - closest)))) | |
758 | 2117 { |
2118 closest = val; | |
2119 closest_seq = uhp->uh_seq; | |
2120 } | |
2121 } | |
2122 | |
2123 /* Quit searching when we found a match. But when searching for a | |
2124 * time we need to continue looking for the best uh_seq. */ | |
2125 if (target == val && !dosec) | |
2126 break; | |
753 | 2127 |
2128 /* go down in the tree if we haven't been there */ | |
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2129 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
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2130 && uhp->uh_prev.ptr->uh_walk != mark) |
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2131 uhp = uhp->uh_prev.ptr; |
753 | 2132 |
2133 /* go to alternate branch if we haven't been there */ | |
2242
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2134 else if (uhp->uh_alt_next.ptr != NULL |
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2135 && uhp->uh_alt_next.ptr->uh_walk != nomark |
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2136 && uhp->uh_alt_next.ptr->uh_walk != mark) |
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2137 uhp = uhp->uh_alt_next.ptr; |
753 | 2138 |
2139 /* go up in the tree if we haven't been there and we are at the | |
2140 * start of alternate branches */ | |
2242
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2141 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
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2142 && uhp->uh_next.ptr->uh_walk != nomark |
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2143 && uhp->uh_next.ptr->uh_walk != mark) |
798 | 2144 { |
2145 /* If still at the start we don't go through this change. */ | |
2146 if (uhp == curbuf->b_u_curhead) | |
2147 uhp->uh_walk = nomark; | |
2242
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2148 uhp = uhp->uh_next.ptr; |
798 | 2149 } |
753 | 2150 |
2151 else | |
2152 { | |
2153 /* need to backtrack; mark this node as useless */ | |
2154 uhp->uh_walk = nomark; | |
2242
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2155 if (uhp->uh_alt_prev.ptr != NULL) |
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2156 uhp = uhp->uh_alt_prev.ptr; |
753 | 2157 else |
2242
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2158 uhp = uhp->uh_next.ptr; |
753 | 2159 } |
2160 } | |
2161 | |
2162 if (uhp != NULL) /* found it */ | |
2163 break; | |
772 | 2164 |
2165 if (absolute) | |
2166 { | |
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2167 EMSGN(_("E830: Undo number %ld not found"), step); |
772 | 2168 return; |
2169 } | |
2170 | |
758 | 2171 if (closest == closest_start) |
753 | 2172 { |
758 | 2173 if (step < 0) |
2174 MSG(_("Already at oldest change")); | |
2175 else | |
2176 MSG(_("Already at newest change")); | |
753 | 2177 return; |
2178 } | |
2179 | |
758 | 2180 target = closest_seq; |
2181 dosec = FALSE; | |
2182 if (step < 0) | |
2183 above = TRUE; /* stop above the header */ | |
753 | 2184 } |
2185 | |
2186 /* If we found it: Follow the path to go to where we want to be. */ | |
2187 if (uhp != NULL) | |
2188 { | |
2189 /* | |
2190 * First go up the tree as much as needed. | |
2191 */ | |
2192 for (;;) | |
2193 { | |
2194 uhp = curbuf->b_u_curhead; | |
2195 if (uhp == NULL) | |
2196 uhp = curbuf->b_u_newhead; | |
2197 else | |
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2198 uhp = uhp->uh_next.ptr; |
777 | 2199 if (uhp == NULL || uhp->uh_walk != mark |
2200 || (uhp->uh_seq == target && !above)) | |
753 | 2201 break; |
2202 curbuf->b_u_curhead = uhp; | |
777 | 2203 u_undoredo(TRUE); |
753 | 2204 uhp->uh_walk = nomark; /* don't go back down here */ |
2205 } | |
2206 | |
2207 /* | |
758 | 2208 * And now go down the tree (redo), branching off where needed. |
753 | 2209 */ |
2210 uhp = curbuf->b_u_curhead; | |
777 | 2211 while (uhp != NULL) |
753 | 2212 { |
1056 | 2213 /* Go back to the first branch with a mark. */ |
2242
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2214 while (uhp->uh_alt_prev.ptr != NULL |
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2215 && uhp->uh_alt_prev.ptr->uh_walk == mark) |
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2216 uhp = uhp->uh_alt_prev.ptr; |
1056 | 2217 |
753 | 2218 /* Find the last branch with a mark, that's the one. */ |
2219 last = uhp; | |
2242
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2220 while (last->uh_alt_next.ptr != NULL |
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2221 && last->uh_alt_next.ptr->uh_walk == mark) |
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2222 last = last->uh_alt_next.ptr; |
753 | 2223 if (last != uhp) |
2224 { | |
2225 /* Make the used branch the first entry in the list of | |
2226 * alternatives to make "u" and CTRL-R take this branch. */ | |
2242
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2227 while (uhp->uh_alt_prev.ptr != NULL) |
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2228 uhp = uhp->uh_alt_prev.ptr; |
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2229 if (last->uh_alt_next.ptr != NULL) |
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2230 last->uh_alt_next.ptr->uh_alt_prev.ptr = |
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2231 last->uh_alt_prev.ptr; |
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2232 last->uh_alt_prev.ptr->uh_alt_next.ptr = last->uh_alt_next.ptr; |
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2233 last->uh_alt_prev.ptr = NULL; |
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2234 last->uh_alt_next.ptr = uhp; |
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2235 uhp->uh_alt_prev.ptr = last; |
753 | 2236 |
2234 | 2237 if (curbuf->b_u_oldhead == uhp) |
2238 curbuf->b_u_oldhead = last; | |
753 | 2239 uhp = last; |
2242
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2240 if (uhp->uh_next.ptr != NULL) |
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2241 uhp->uh_next.ptr->uh_prev.ptr = uhp; |
753 | 2242 } |
758 | 2243 curbuf->b_u_curhead = uhp; |
753 | 2244 |
2245 if (uhp->uh_walk != mark) | |
2246 break; /* must have reached the target */ | |
2247 | |
758 | 2248 /* Stop when going backwards in time and didn't find the exact |
2249 * header we were looking for. */ | |
2250 if (uhp->uh_seq == target && above) | |
798 | 2251 { |
2252 curbuf->b_u_seq_cur = target - 1; | |
758 | 2253 break; |
798 | 2254 } |
758 | 2255 |
777 | 2256 u_undoredo(FALSE); |
753 | 2257 |
2258 /* Advance "curhead" to below the header we last used. If it | |
2259 * becomes NULL then we need to set "newhead" to this leaf. */ | |
2242
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changeset
|
2260 if (uhp->uh_prev.ptr == NULL) |
753 | 2261 curbuf->b_u_newhead = uhp; |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2262 curbuf->b_u_curhead = uhp->uh_prev.ptr; |
794 | 2263 did_undo = FALSE; |
753 | 2264 |
2265 if (uhp->uh_seq == target) /* found it! */ | |
2266 break; | |
2267 | |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2268 uhp = uhp->uh_prev.ptr; |
753 | 2269 if (uhp == NULL || uhp->uh_walk != mark) |
2270 { | |
777 | 2271 /* Need to redo more but can't find it... */ |
753 | 2272 EMSG2(_(e_intern2), "undo_time()"); |
2273 break; | |
2274 } | |
2275 } | |
2276 } | |
798 | 2277 u_undo_end(did_undo, absolute); |
7 | 2278 } |
2279 | |
2280 /* | |
2281 * u_undoredo: common code for undo and redo | |
2282 * | |
2283 * The lines in the file are replaced by the lines in the entry list at | |
2284 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry | |
2285 * list for the next undo/redo. | |
777 | 2286 * |
2287 * When "undo" is TRUE we go up in the tree, when FALSE we go down. | |
7 | 2288 */ |
2289 static void | |
777 | 2290 u_undoredo(undo) |
2291 int undo; | |
7 | 2292 { |
2293 char_u **newarray = NULL; | |
2294 linenr_T oldsize; | |
2295 linenr_T newsize; | |
2296 linenr_T top, bot; | |
2297 linenr_T lnum; | |
2298 linenr_T newlnum = MAXLNUM; | |
2299 long i; | |
2300 u_entry_T *uep, *nuep; | |
2301 u_entry_T *newlist = NULL; | |
2302 int old_flags; | |
2303 int new_flags; | |
2304 pos_T namedm[NMARKS]; | |
692 | 2305 #ifdef FEAT_VISUAL |
2306 visualinfo_T visualinfo; | |
2307 #endif | |
7 | 2308 int empty_buffer; /* buffer became empty */ |
758 | 2309 u_header_T *curhead = curbuf->b_u_curhead; |
7 | 2310 |
1415 | 2311 #ifdef U_DEBUG |
2312 u_check(FALSE); | |
2313 #endif | |
758 | 2314 old_flags = curhead->uh_flags; |
7 | 2315 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) + |
2316 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
2317 setpcmark(); | |
2318 | |
2319 /* | |
2320 * save marks before undo/redo | |
2321 */ | |
2322 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); | |
692 | 2323 #ifdef FEAT_VISUAL |
2324 visualinfo = curbuf->b_visual; | |
2325 #endif | |
7 | 2326 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count; |
2327 curbuf->b_op_start.col = 0; | |
2328 curbuf->b_op_end.lnum = 0; | |
2329 curbuf->b_op_end.col = 0; | |
2330 | |
758 | 2331 for (uep = curhead->uh_entry; uep != NULL; uep = nuep) |
7 | 2332 { |
2333 top = uep->ue_top; | |
2334 bot = uep->ue_bot; | |
2335 if (bot == 0) | |
2336 bot = curbuf->b_ml.ml_line_count + 1; | |
2337 if (top > curbuf->b_ml.ml_line_count || top >= bot | |
2338 || bot > curbuf->b_ml.ml_line_count + 1) | |
2339 { | |
2340 EMSG(_("E438: u_undo: line numbers wrong")); | |
2341 changed(); /* don't want UNCHANGED now */ | |
2342 return; | |
2343 } | |
2344 | |
2345 oldsize = bot - top - 1; /* number of lines before undo */ | |
2346 newsize = uep->ue_size; /* number of lines after undo */ | |
2347 | |
2348 if (top < newlnum) | |
2349 { | |
2350 /* If the saved cursor is somewhere in this undo block, move it to | |
2351 * the remembered position. Makes "gwap" put the cursor back | |
2352 * where it was. */ | |
758 | 2353 lnum = curhead->uh_cursor.lnum; |
7 | 2354 if (lnum >= top && lnum <= top + newsize + 1) |
2355 { | |
758 | 2356 curwin->w_cursor = curhead->uh_cursor; |
7 | 2357 newlnum = curwin->w_cursor.lnum - 1; |
2358 } | |
2359 else | |
2360 { | |
2361 /* Use the first line that actually changed. Avoids that | |
2362 * undoing auto-formatting puts the cursor in the previous | |
2363 * line. */ | |
2364 for (i = 0; i < newsize && i < oldsize; ++i) | |
2365 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0) | |
2366 break; | |
2367 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL) | |
2368 { | |
2369 newlnum = top; | |
2370 curwin->w_cursor.lnum = newlnum + 1; | |
2371 } | |
2372 else if (i < newsize) | |
2373 { | |
2374 newlnum = top + i; | |
2375 curwin->w_cursor.lnum = newlnum + 1; | |
2376 } | |
2377 } | |
2378 } | |
2379 | |
2380 empty_buffer = FALSE; | |
2381 | |
2382 /* delete the lines between top and bot and save them in newarray */ | |
168 | 2383 if (oldsize > 0) |
7 | 2384 { |
168 | 2385 if ((newarray = (char_u **)U_ALLOC_LINE( |
2230
290ee42cae85
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2386 sizeof(char_u *) * oldsize)) == NULL) |
7 | 2387 { |
2388 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize)); | |
2389 /* | |
2390 * We have messed up the entry list, repair is impossible. | |
2391 * we have to free the rest of the list. | |
2392 */ | |
2393 while (uep != NULL) | |
2394 { | |
2395 nuep = uep->ue_next; | |
2396 u_freeentry(uep, uep->ue_size); | |
2397 uep = nuep; | |
2398 } | |
2399 break; | |
2400 } | |
2401 /* delete backwards, it goes faster in most cases */ | |
2402 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum) | |
2403 { | |
2404 /* what can we do when we run out of memory? */ | |
2405 if ((newarray[i] = u_save_line(lnum)) == NULL) | |
2406 do_outofmem_msg((long_u)0); | |
2407 /* remember we deleted the last line in the buffer, and a | |
2408 * dummy empty line will be inserted */ | |
2409 if (curbuf->b_ml.ml_line_count == 1) | |
2410 empty_buffer = TRUE; | |
2411 ml_delete(lnum, FALSE); | |
2412 } | |
2413 } | |
414 | 2414 else |
2415 newarray = NULL; | |
7 | 2416 |
2417 /* insert the lines in u_array between top and bot */ | |
2418 if (newsize) | |
2419 { | |
2420 for (lnum = top, i = 0; i < newsize; ++i, ++lnum) | |
2421 { | |
2422 /* | |
2423 * If the file is empty, there is an empty line 1 that we | |
2424 * should get rid of, by replacing it with the new line | |
2425 */ | |
2426 if (empty_buffer && lnum == 0) | |
2427 ml_replace((linenr_T)1, uep->ue_array[i], TRUE); | |
2428 else | |
2429 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE); | |
2230
290ee42cae85
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2430 vim_free(uep->ue_array[i]); |
7 | 2431 } |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2432 vim_free((char_u *)uep->ue_array); |
7 | 2433 } |
2434 | |
2435 /* adjust marks */ | |
2436 if (oldsize != newsize) | |
2437 { | |
2438 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM, | |
2439 (long)newsize - (long)oldsize); | |
2440 if (curbuf->b_op_start.lnum > top + oldsize) | |
2441 curbuf->b_op_start.lnum += newsize - oldsize; | |
2442 if (curbuf->b_op_end.lnum > top + oldsize) | |
2443 curbuf->b_op_end.lnum += newsize - oldsize; | |
2444 } | |
2445 | |
2446 changed_lines(top + 1, 0, bot, newsize - oldsize); | |
2447 | |
2448 /* set '[ and '] mark */ | |
2449 if (top + 1 < curbuf->b_op_start.lnum) | |
2450 curbuf->b_op_start.lnum = top + 1; | |
2451 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) | |
2452 curbuf->b_op_end.lnum = top + 1; | |
2453 else if (top + newsize > curbuf->b_op_end.lnum) | |
2454 curbuf->b_op_end.lnum = top + newsize; | |
2455 | |
2456 u_newcount += newsize; | |
2457 u_oldcount += oldsize; | |
2458 uep->ue_size = oldsize; | |
2459 uep->ue_array = newarray; | |
2460 uep->ue_bot = top + newsize + 1; | |
2461 | |
2462 /* | |
2463 * insert this entry in front of the new entry list | |
2464 */ | |
2465 nuep = uep->ue_next; | |
2466 uep->ue_next = newlist; | |
2467 newlist = uep; | |
2468 } | |
2469 | |
758 | 2470 curhead->uh_entry = newlist; |
2471 curhead->uh_flags = new_flags; | |
7 | 2472 if ((old_flags & UH_EMPTYBUF) && bufempty()) |
2473 curbuf->b_ml.ml_flags |= ML_EMPTY; | |
2474 if (old_flags & UH_CHANGED) | |
2475 changed(); | |
2476 else | |
33 | 2477 #ifdef FEAT_NETBEANS_INTG |
2478 /* per netbeans undo rules, keep it as modified */ | |
2479 if (!isNetbeansModified(curbuf)) | |
2480 #endif | |
7 | 2481 unchanged(curbuf, FALSE); |
2482 | |
2483 /* | |
2484 * restore marks from before undo/redo | |
2485 */ | |
2486 for (i = 0; i < NMARKS; ++i) | |
758 | 2487 if (curhead->uh_namedm[i].lnum != 0) |
7 | 2488 { |
758 | 2489 curbuf->b_namedm[i] = curhead->uh_namedm[i]; |
2490 curhead->uh_namedm[i] = namedm[i]; | |
7 | 2491 } |
692 | 2492 #ifdef FEAT_VISUAL |
758 | 2493 if (curhead->uh_visual.vi_start.lnum != 0) |
692 | 2494 { |
758 | 2495 curbuf->b_visual = curhead->uh_visual; |
2496 curhead->uh_visual = visualinfo; | |
692 | 2497 } |
2498 #endif | |
7 | 2499 |
2500 /* | |
2501 * If the cursor is only off by one line, put it at the same position as | |
2502 * before starting the change (for the "o" command). | |
2503 * Otherwise the cursor should go to the first undone line. | |
2504 */ | |
758 | 2505 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum |
7 | 2506 && curwin->w_cursor.lnum > 1) |
2507 --curwin->w_cursor.lnum; | |
758 | 2508 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum) |
7 | 2509 { |
758 | 2510 curwin->w_cursor.col = curhead->uh_cursor.col; |
7 | 2511 #ifdef FEAT_VIRTUALEDIT |
758 | 2512 if (virtual_active() && curhead->uh_cursor_vcol >= 0) |
2513 coladvance((colnr_T)curhead->uh_cursor_vcol); | |
7 | 2514 else |
2515 curwin->w_cursor.coladd = 0; | |
2516 #endif | |
2517 } | |
2518 else if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count) | |
2519 beginline(BL_SOL | BL_FIX); | |
2520 else | |
2521 { | |
2522 /* We get here with the current cursor line being past the end (eg | |
2523 * after adding lines at the end of the file, and then undoing it). | |
2524 * check_cursor() will move the cursor to the last line. Move it to | |
2525 * the first column here. */ | |
2526 curwin->w_cursor.col = 0; | |
2527 #ifdef FEAT_VIRTUALEDIT | |
2528 curwin->w_cursor.coladd = 0; | |
2529 #endif | |
2530 } | |
2531 | |
2532 /* Make sure the cursor is on an existing line and column. */ | |
2533 check_cursor(); | |
758 | 2534 |
2535 /* Remember where we are for "g-" and ":earlier 10s". */ | |
2536 curbuf->b_u_seq_cur = curhead->uh_seq; | |
777 | 2537 if (undo) |
2538 /* We are below the previous undo. However, to make ":earlier 1s" | |
2539 * work we compute this as being just above the just undone change. */ | |
2540 --curbuf->b_u_seq_cur; | |
2541 | |
2542 /* The timestamp can be the same for multiple changes, just use the one of | |
2543 * the undone/redone change. */ | |
2280
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2544 curbuf->b_u_time_cur = curhead->uh_time; |
1415 | 2545 #ifdef U_DEBUG |
2546 u_check(FALSE); | |
2547 #endif | |
7 | 2548 } |
2549 | |
2550 /* | |
2551 * If we deleted or added lines, report the number of less/more lines. | |
2552 * Otherwise, report the number of changes (this may be incorrect | |
2553 * in some cases, but it's better than nothing). | |
2554 */ | |
2555 static void | |
798 | 2556 u_undo_end(did_undo, absolute) |
794 | 2557 int did_undo; /* just did an undo */ |
798 | 2558 int absolute; /* used ":undo N" */ |
7 | 2559 { |
944 | 2560 char *msgstr; |
772 | 2561 u_header_T *uhp; |
2562 char_u msgbuf[80]; | |
753 | 2563 |
7 | 2564 #ifdef FEAT_FOLDING |
2565 if ((fdo_flags & FDO_UNDO) && KeyTyped) | |
2566 foldOpenCursor(); | |
2567 #endif | |
753 | 2568 |
2569 if (global_busy /* no messages now, wait until global is finished */ | |
2570 || !messaging()) /* 'lazyredraw' set, don't do messages now */ | |
2571 return; | |
2572 | |
2573 if (curbuf->b_ml.ml_flags & ML_EMPTY) | |
2574 --u_newcount; | |
2575 | |
2576 u_oldcount -= u_newcount; | |
2577 if (u_oldcount == -1) | |
944 | 2578 msgstr = N_("more line"); |
753 | 2579 else if (u_oldcount < 0) |
944 | 2580 msgstr = N_("more lines"); |
753 | 2581 else if (u_oldcount == 1) |
944 | 2582 msgstr = N_("line less"); |
753 | 2583 else if (u_oldcount > 1) |
944 | 2584 msgstr = N_("fewer lines"); |
753 | 2585 else |
2586 { | |
2587 u_oldcount = u_newcount; | |
2588 if (u_newcount == 1) | |
944 | 2589 msgstr = N_("change"); |
753 | 2590 else |
944 | 2591 msgstr = N_("changes"); |
753 | 2592 } |
2593 | |
772 | 2594 if (curbuf->b_u_curhead != NULL) |
794 | 2595 { |
798 | 2596 /* For ":undo N" we prefer a "after #N" message. */ |
2242
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2597 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL) |
798 | 2598 { |
2242
bc4685345719
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parents:
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diff
changeset
|
2599 uhp = curbuf->b_u_curhead->uh_next.ptr; |
798 | 2600 did_undo = FALSE; |
2601 } | |
2602 else if (did_undo) | |
794 | 2603 uhp = curbuf->b_u_curhead; |
2604 else | |
2242
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parents:
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diff
changeset
|
2605 uhp = curbuf->b_u_curhead->uh_next.ptr; |
794 | 2606 } |
753 | 2607 else |
772 | 2608 uhp = curbuf->b_u_newhead; |
753 | 2609 |
772 | 2610 if (uhp == NULL) |
2611 *msgbuf = NUL; | |
2612 else | |
2613 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time); | |
2614 | |
794 | 2615 smsg((char_u *)_("%ld %s; %s #%ld %s"), |
777 | 2616 u_oldcount < 0 ? -u_oldcount : u_oldcount, |
944 | 2617 _(msgstr), |
794 | 2618 did_undo ? _("before") : _("after"), |
2619 uhp == NULL ? 0L : uhp->uh_seq, | |
2620 msgbuf); | |
7 | 2621 } |
2622 | |
2623 /* | |
2624 * u_sync: stop adding to the current entry list | |
2625 */ | |
2626 void | |
825 | 2627 u_sync(force) |
2628 int force; /* Also sync when no_u_sync is set. */ | |
7 | 2629 { |
825 | 2630 /* Skip it when already synced or syncing is disabled. */ |
2631 if (curbuf->b_u_synced || (!force && no_u_sync > 0)) | |
2632 return; | |
7 | 2633 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) |
2634 if (im_is_preediting()) | |
2635 return; /* XIM is busy, don't break an undo sequence */ | |
2636 #endif | |
2637 if (p_ul < 0) | |
2638 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */ | |
2639 else | |
2640 { | |
2641 u_getbot(); /* compute ue_bot of previous u_save */ | |
2642 curbuf->b_u_curhead = NULL; | |
2643 } | |
2644 } | |
2645 | |
2646 /* | |
772 | 2647 * ":undolist": List the leafs of the undo tree |
2648 */ | |
2649 void | |
2650 ex_undolist(eap) | |
2154
7c8c7c95a865
First step in the Vim 7.3 branch. Changed version numbers.
Bram Moolenaar <bram@zimbu.org>
parents:
1534
diff
changeset
|
2651 exarg_T *eap UNUSED; |
772 | 2652 { |
2653 garray_T ga; | |
2654 u_header_T *uhp; | |
2655 int mark; | |
2656 int nomark; | |
2657 int changes = 1; | |
2658 int i; | |
2659 | |
2660 /* | |
2661 * 1: walk the tree to find all leafs, put the info in "ga". | |
2662 * 2: sort the lines | |
2663 * 3: display the list | |
2664 */ | |
2665 mark = ++lastmark; | |
2666 nomark = ++lastmark; | |
2667 ga_init2(&ga, (int)sizeof(char *), 20); | |
2668 | |
2669 uhp = curbuf->b_u_oldhead; | |
2670 while (uhp != NULL) | |
2671 { | |
2242
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diff
changeset
|
2672 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark |
777 | 2673 && uhp->uh_walk != mark) |
772 | 2674 { |
2675 if (ga_grow(&ga, 1) == FAIL) | |
2676 break; | |
2677 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ", | |
2678 uhp->uh_seq, changes); | |
2679 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff), | |
2680 uhp->uh_time); | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2681 if (uhp->uh_save_nr > 0) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
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|
2682 { |
941ff1cd317a
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diff
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|
2683 while (STRLEN(IObuff) < 32) |
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parents:
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diff
changeset
|
2684 STRCAT(IObuff, " "); |
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2685 vim_snprintf_add((char *)IObuff, IOSIZE, |
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2686 " %3ld", uhp->uh_save_nr); |
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2687 } |
772 | 2688 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff); |
2689 } | |
2690 | |
2691 uhp->uh_walk = mark; | |
2692 | |
2693 /* go down in the tree if we haven't been there */ | |
2242
bc4685345719
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parents:
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diff
changeset
|
2694 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2695 && uhp->uh_prev.ptr->uh_walk != mark) |
772 | 2696 { |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2697 uhp = uhp->uh_prev.ptr; |
772 | 2698 ++changes; |
2699 } | |
2700 | |
2701 /* go to alternate branch if we haven't been there */ | |
2242
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diff
changeset
|
2702 else if (uhp->uh_alt_next.ptr != NULL |
bc4685345719
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parents:
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changeset
|
2703 && uhp->uh_alt_next.ptr->uh_walk != nomark |
bc4685345719
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diff
changeset
|
2704 && uhp->uh_alt_next.ptr->uh_walk != mark) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2705 uhp = uhp->uh_alt_next.ptr; |
772 | 2706 |
2707 /* go up in the tree if we haven't been there and we are at the | |
2708 * start of alternate branches */ | |
2242
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|
2709 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
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diff
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|
2710 && uhp->uh_next.ptr->uh_walk != nomark |
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parents:
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diff
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|
2711 && uhp->uh_next.ptr->uh_walk != mark) |
772 | 2712 { |
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parents:
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diff
changeset
|
2713 uhp = uhp->uh_next.ptr; |
772 | 2714 --changes; |
2715 } | |
2716 | |
2717 else | |
2718 { | |
2719 /* need to backtrack; mark this node as done */ | |
2720 uhp->uh_walk = nomark; | |
2242
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diff
changeset
|
2721 if (uhp->uh_alt_prev.ptr != NULL) |
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parents:
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diff
changeset
|
2722 uhp = uhp->uh_alt_prev.ptr; |
772 | 2723 else |
2724 { | |
2242
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diff
changeset
|
2725 uhp = uhp->uh_next.ptr; |
772 | 2726 --changes; |
2727 } | |
2728 } | |
2729 } | |
2730 | |
2731 if (ga.ga_len == 0) | |
2732 MSG(_("Nothing to undo")); | |
2733 else | |
2734 { | |
2735 sort_strings((char_u **)ga.ga_data, ga.ga_len); | |
2736 | |
2737 msg_start(); | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2738 msg_puts_attr((char_u *)_("number changes time saved"), |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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2271
diff
changeset
|
2739 hl_attr(HLF_T)); |
772 | 2740 for (i = 0; i < ga.ga_len && !got_int; ++i) |
2741 { | |
2742 msg_putchar('\n'); | |
2743 if (got_int) | |
2744 break; | |
2745 msg_puts(((char_u **)ga.ga_data)[i]); | |
2746 } | |
2747 msg_end(); | |
2748 | |
2749 ga_clear_strings(&ga); | |
2750 } | |
2751 } | |
2752 | |
2753 /* | |
2754 * Put the timestamp of an undo header in "buf[buflen]" in a nice format. | |
2755 */ | |
2756 static void | |
2757 u_add_time(buf, buflen, tt) | |
2758 char_u *buf; | |
2759 size_t buflen; | |
2760 time_t tt; | |
2761 { | |
2762 #ifdef HAVE_STRFTIME | |
2763 struct tm *curtime; | |
2764 | |
2765 if (time(NULL) - tt >= 100) | |
2766 { | |
2767 curtime = localtime(&tt); | |
810 | 2768 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime); |
772 | 2769 } |
2770 else | |
2771 #endif | |
835 | 2772 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"), |
772 | 2773 (long)(time(NULL) - tt)); |
2774 } | |
2775 | |
2776 /* | |
697 | 2777 * ":undojoin": continue adding to the last entry list |
2778 */ | |
2779 void | |
2780 ex_undojoin(eap) | |
2154
7c8c7c95a865
First step in the Vim 7.3 branch. Changed version numbers.
Bram Moolenaar <bram@zimbu.org>
parents:
1534
diff
changeset
|
2781 exarg_T *eap UNUSED; |
697 | 2782 { |
839 | 2783 if (curbuf->b_u_newhead == NULL) |
2784 return; /* nothing changed before */ | |
2785 if (curbuf->b_u_curhead != NULL) | |
2786 { | |
2787 EMSG(_("E790: undojoin is not allowed after undo")); | |
2788 return; | |
2789 } | |
697 | 2790 if (!curbuf->b_u_synced) |
2791 return; /* already unsynced */ | |
2792 if (p_ul < 0) | |
2793 return; /* no entries, nothing to do */ | |
2794 else | |
2795 { | |
2796 /* Go back to the last entry */ | |
2797 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
2798 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */ | |
2799 } | |
2800 } | |
2801 | |
2802 /* | |
7 | 2803 * Called after writing the file and setting b_changed to FALSE. |
2804 * Now an undo means that the buffer is modified. | |
2805 */ | |
2806 void | |
2807 u_unchanged(buf) | |
2808 buf_T *buf; | |
2809 { | |
758 | 2810 u_unch_branch(buf->b_u_oldhead); |
2811 buf->b_did_warn = FALSE; | |
2812 } | |
2813 | |
2814 static void | |
2815 u_unch_branch(uhp) | |
2816 u_header_T *uhp; | |
2817 { | |
753 | 2818 u_header_T *uh; |
7 | 2819 |
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changeset
|
2820 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr) |
758 | 2821 { |
7 | 2822 uh->uh_flags |= UH_CHANGED; |
2242
bc4685345719
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|
2823 if (uh->uh_alt_next.ptr != NULL) |
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diff
changeset
|
2824 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */ |
758 | 2825 } |
7 | 2826 } |
2827 | |
2828 /* | |
2829 * Get pointer to last added entry. | |
2830 * If it's not valid, give an error message and return NULL. | |
2831 */ | |
2832 static u_entry_T * | |
2833 u_get_headentry() | |
2834 { | |
2835 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL) | |
2836 { | |
2837 EMSG(_("E439: undo list corrupt")); | |
2838 return NULL; | |
2839 } | |
2840 return curbuf->b_u_newhead->uh_entry; | |
2841 } | |
2842 | |
2843 /* | |
2844 * u_getbot(): compute the line number of the previous u_save | |
2845 * It is called only when b_u_synced is FALSE. | |
2846 */ | |
2847 static void | |
2848 u_getbot() | |
2849 { | |
2850 u_entry_T *uep; | |
2851 linenr_T extra; | |
2852 | |
2853 uep = u_get_headentry(); /* check for corrupt undo list */ | |
2854 if (uep == NULL) | |
2855 return; | |
2856 | |
2857 uep = curbuf->b_u_newhead->uh_getbot_entry; | |
2858 if (uep != NULL) | |
2859 { | |
2860 /* | |
2861 * the new ue_bot is computed from the number of lines that has been | |
2862 * inserted (0 - deleted) since calling u_save. This is equal to the | |
2863 * old line count subtracted from the current line count. | |
2864 */ | |
2865 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount; | |
2866 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra; | |
2867 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count) | |
2868 { | |
2869 EMSG(_("E440: undo line missing")); | |
2870 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will | |
2871 * get all the old lines back | |
2872 * without deleting the current | |
2873 * ones */ | |
2874 } | |
2875 | |
2876 curbuf->b_u_newhead->uh_getbot_entry = NULL; | |
2877 } | |
2878 | |
2879 curbuf->b_u_synced = TRUE; | |
2880 } | |
2881 | |
2882 /* | |
1415 | 2883 * Free one header "uhp" and its entry list and adjust the pointers. |
7 | 2884 */ |
2885 static void | |
758 | 2886 u_freeheader(buf, uhp, uhpp) |
168 | 2887 buf_T *buf; |
753 | 2888 u_header_T *uhp; |
2889 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
7 | 2890 { |
1415 | 2891 u_header_T *uhap; |
2892 | |
753 | 2893 /* When there is an alternate redo list free that branch completely, |
2894 * because we can never go there. */ | |
2242
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diff
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|
2895 if (uhp->uh_alt_next.ptr != NULL) |
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diff
changeset
|
2896 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp); |
7 | 2897 |
2242
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diff
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|
2898 if (uhp->uh_alt_prev.ptr != NULL) |
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diff
changeset
|
2899 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
7 | 2900 |
753 | 2901 /* Update the links in the list to remove the header. */ |
2242
bc4685345719
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diff
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|
2902 if (uhp->uh_next.ptr == NULL) |
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diff
changeset
|
2903 buf->b_u_oldhead = uhp->uh_prev.ptr; |
7 | 2904 else |
2242
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diff
changeset
|
2905 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr; |
7 | 2906 |
2242
bc4685345719
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diff
changeset
|
2907 if (uhp->uh_prev.ptr == NULL) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2908 buf->b_u_newhead = uhp->uh_next.ptr; |
7 | 2909 else |
2242
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diff
changeset
|
2910 for (uhap = uhp->uh_prev.ptr; uhap != NULL; |
bc4685345719
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Bram Moolenaar <bram@vim.org>
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2239
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changeset
|
2911 uhap = uhap->uh_alt_next.ptr) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2912 uhap->uh_next.ptr = uhp->uh_next.ptr; |
7 | 2913 |
753 | 2914 u_freeentries(buf, uhp, uhpp); |
2915 } | |
2916 | |
2917 /* | |
758 | 2918 * Free an alternate branch and any following alternate branches. |
753 | 2919 */ |
2920 static void | |
2921 u_freebranch(buf, uhp, uhpp) | |
2922 buf_T *buf; | |
2923 u_header_T *uhp; | |
2924 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
2925 { | |
2926 u_header_T *tofree, *next; | |
2927 | |
1440 | 2928 /* If this is the top branch we may need to use u_freeheader() to update |
2929 * all the pointers. */ | |
2930 if (uhp == buf->b_u_oldhead) | |
2931 { | |
2932 u_freeheader(buf, uhp, uhpp); | |
2933 return; | |
2934 } | |
2935 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
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2239
diff
changeset
|
2936 if (uhp->uh_alt_prev.ptr != NULL) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2937 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
753 | 2938 |
2939 next = uhp; | |
2940 while (next != NULL) | |
2941 { | |
2942 tofree = next; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2943 if (tofree->uh_alt_next.ptr != NULL) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2944 u_freebranch(buf, tofree->uh_alt_next.ptr, uhpp); /* recursive */ |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2945 next = tofree->uh_prev.ptr; |
753 | 2946 u_freeentries(buf, tofree, uhpp); |
2947 } | |
2948 } | |
2949 | |
2950 /* | |
2951 * Free all the undo entries for one header and the header itself. | |
2952 * This means that "uhp" is invalid when returning. | |
2953 */ | |
2954 static void | |
2955 u_freeentries(buf, uhp, uhpp) | |
2956 buf_T *buf; | |
2957 u_header_T *uhp; | |
2958 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
2959 { | |
2960 u_entry_T *uep, *nuep; | |
2961 | |
2962 /* Check for pointers to the header that become invalid now. */ | |
2963 if (buf->b_u_curhead == uhp) | |
2964 buf->b_u_curhead = NULL; | |
1415 | 2965 if (buf->b_u_newhead == uhp) |
2966 buf->b_u_newhead = NULL; /* freeing the newest entry */ | |
753 | 2967 if (uhpp != NULL && uhp == *uhpp) |
2968 *uhpp = NULL; | |
2969 | |
2970 for (uep = uhp->uh_entry; uep != NULL; uep = nuep) | |
2971 { | |
2972 nuep = uep->ue_next; | |
2973 u_freeentry(uep, uep->ue_size); | |
2974 } | |
2975 | |
1415 | 2976 #ifdef U_DEBUG |
2977 uhp->uh_magic = 0; | |
2978 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2979 vim_free((char_u *)uhp); |
168 | 2980 --buf->b_u_numhead; |
7 | 2981 } |
2982 | |
2983 /* | |
2984 * free entry 'uep' and 'n' lines in uep->ue_array[] | |
2985 */ | |
2986 static void | |
2987 u_freeentry(uep, n) | |
2988 u_entry_T *uep; | |
2989 long n; | |
2990 { | |
414 | 2991 while (n > 0) |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2992 vim_free(uep->ue_array[--n]); |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2993 vim_free((char_u *)uep->ue_array); |
1415 | 2994 #ifdef U_DEBUG |
2995 uep->ue_magic = 0; | |
2996 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2997 vim_free((char_u *)uep); |
7 | 2998 } |
2999 | |
3000 /* | |
3001 * invalidate the undo buffer; called when storage has already been released | |
3002 */ | |
3003 void | |
3004 u_clearall(buf) | |
3005 buf_T *buf; | |
3006 { | |
3007 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL; | |
3008 buf->b_u_synced = TRUE; | |
3009 buf->b_u_numhead = 0; | |
3010 buf->b_u_line_ptr = NULL; | |
3011 buf->b_u_line_lnum = 0; | |
3012 } | |
3013 | |
3014 /* | |
3015 * save the line "lnum" for the "U" command | |
3016 */ | |
3017 void | |
3018 u_saveline(lnum) | |
3019 linenr_T lnum; | |
3020 { | |
3021 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */ | |
3022 return; | |
356 | 3023 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */ |
7 | 3024 return; |
3025 u_clearline(); | |
3026 curbuf->b_u_line_lnum = lnum; | |
3027 if (curwin->w_cursor.lnum == lnum) | |
3028 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3029 else | |
3030 curbuf->b_u_line_colnr = 0; | |
3031 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL) | |
3032 do_outofmem_msg((long_u)0); | |
3033 } | |
3034 | |
3035 /* | |
3036 * clear the line saved for the "U" command | |
3037 * (this is used externally for crossing a line while in insert mode) | |
3038 */ | |
3039 void | |
3040 u_clearline() | |
3041 { | |
3042 if (curbuf->b_u_line_ptr != NULL) | |
3043 { | |
2230
290ee42cae85
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3044 vim_free(curbuf->b_u_line_ptr); |
7 | 3045 curbuf->b_u_line_ptr = NULL; |
3046 curbuf->b_u_line_lnum = 0; | |
3047 } | |
3048 } | |
3049 | |
3050 /* | |
3051 * Implementation of the "U" command. | |
3052 * Differentiation from vi: "U" can be undone with the next "U". | |
3053 * We also allow the cursor to be in another line. | |
3054 */ | |
3055 void | |
3056 u_undoline() | |
3057 { | |
3058 colnr_T t; | |
3059 char_u *oldp; | |
3060 | |
3061 if (undo_off) | |
3062 return; | |
3063 | |
1534 | 3064 if (curbuf->b_u_line_ptr == NULL |
3065 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count) | |
7 | 3066 { |
3067 beep_flush(); | |
3068 return; | |
3069 } | |
1534 | 3070 |
3071 /* first save the line for the 'u' command */ | |
7 | 3072 if (u_savecommon(curbuf->b_u_line_lnum - 1, |
3073 curbuf->b_u_line_lnum + 1, (linenr_T)0) == FAIL) | |
3074 return; | |
3075 oldp = u_save_line(curbuf->b_u_line_lnum); | |
3076 if (oldp == NULL) | |
3077 { | |
3078 do_outofmem_msg((long_u)0); | |
3079 return; | |
3080 } | |
3081 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE); | |
3082 changed_bytes(curbuf->b_u_line_lnum, 0); | |
2230
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3083 vim_free(curbuf->b_u_line_ptr); |
7 | 3084 curbuf->b_u_line_ptr = oldp; |
3085 | |
3086 t = curbuf->b_u_line_colnr; | |
3087 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum) | |
3088 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3089 curwin->w_cursor.col = t; | |
3090 curwin->w_cursor.lnum = curbuf->b_u_line_lnum; | |
1534 | 3091 check_cursor_col(); |
7 | 3092 } |
3093 | |
3094 /* | |
168 | 3095 * Free all allocated memory blocks for the buffer 'buf'. |
3096 */ | |
3097 void | |
3098 u_blockfree(buf) | |
3099 buf_T *buf; | |
3100 { | |
753 | 3101 while (buf->b_u_oldhead != NULL) |
758 | 3102 u_freeheader(buf, buf->b_u_oldhead, NULL); |
2230
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Bram Moolenaar <bram@vim.org>
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2229
diff
changeset
|
3103 vim_free(buf->b_u_line_ptr); |
7 | 3104 } |
3105 | |
3106 /* | |
2230
290ee42cae85
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3107 * u_save_line(): allocate memory and copy line 'lnum' into it. |
290ee42cae85
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3108 * Returns NULL when out of memory. |
7 | 3109 */ |
3110 static char_u * | |
3111 u_save_line(lnum) | |
3112 linenr_T lnum; | |
3113 { | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3114 return vim_strsave(ml_get(lnum)); |
7 | 3115 } |
3116 | |
3117 /* | |
3118 * Check if the 'modified' flag is set, or 'ff' has changed (only need to | |
3119 * check the first character, because it can only be "dos", "unix" or "mac"). | |
3120 * "nofile" and "scratch" type buffers are considered to always be unchanged. | |
3121 */ | |
3122 int | |
3123 bufIsChanged(buf) | |
3124 buf_T *buf; | |
3125 { | |
3126 return | |
3127 #ifdef FEAT_QUICKFIX | |
3128 !bt_dontwrite(buf) && | |
3129 #endif | |
3130 (buf->b_changed || file_ff_differs(buf)); | |
3131 } | |
3132 | |
3133 int | |
3134 curbufIsChanged() | |
3135 { | |
3136 return | |
3137 #ifdef FEAT_QUICKFIX | |
3138 !bt_dontwrite(curbuf) && | |
3139 #endif | |
3140 (curbuf->b_changed || file_ff_differs(curbuf)); | |
3141 } | |
2280
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3142 |
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3143 #if defined(FEAT_EVAL) || defined(PROTO) |
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3144 /* |
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3145 * For undotree(): Append the list of undo blocks at "first_uhp" to "list". |
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3146 * Recursive. |
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3147 */ |
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3148 void |
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3149 u_eval_tree(first_uhp, list) |
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3150 u_header_T *first_uhp; |
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3151 list_T *list; |
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3152 { |
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3153 u_header_T *uhp = first_uhp; |
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3154 dict_T *dict; |
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3155 |
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3156 while (uhp != NULL) |
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3157 { |
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3158 dict = dict_alloc(); |
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3159 if (dict == NULL) |
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3160 return; |
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3161 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL); |
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3162 dict_add_nr_str(dict, "time", uhp->uh_time, NULL); |
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3163 if (uhp == curbuf->b_u_newhead) |
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3164 dict_add_nr_str(dict, "newhead", 1, NULL); |
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3165 if (uhp == curbuf->b_u_curhead) |
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3166 dict_add_nr_str(dict, "curhead", 1, NULL); |
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3167 if (uhp->uh_save_nr > 0) |
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3168 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL); |
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3169 |
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3170 if (uhp->uh_alt_next.ptr != NULL) |
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3171 { |
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3172 list_T *alt_list = list_alloc(); |
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3173 |
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3174 if (alt_list != NULL) |
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3175 { |
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3176 /* Recursive call to add alternate undo tree. */ |
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3177 u_eval_tree(uhp->uh_alt_next.ptr, alt_list); |
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3178 dict_add_list(dict, "alt", alt_list); |
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3179 } |
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3180 } |
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3181 |
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3182 list_append_dict(list, dict); |
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3183 uhp = uhp->uh_prev.ptr; |
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3184 } |
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3185 } |
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3186 #endif |