Mercurial > vim
annotate src/undo.c @ 2245:4e0124f5aee2 vim73
Optimize the blowfish crypt/decrypt code a bit more.
author | Bram Moolenaar <bram@vim.org> |
---|---|
date | Wed, 02 Jun 2010 20:32:23 +0200 |
parents | bc4685345719 |
children | 646d34788036 |
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 *msg, 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 int serialize_header __ARGS((FILE *fp, buf_T *buf, char_u *hash)); |
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106 static int serialize_uhp __ARGS((FILE *fp, buf_T *buf, u_header_T *uhp)); |
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107 static u_header_T *unserialize_uhp __ARGS((FILE *fp, char_u *file_name)); |
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108 static int serialize_uep __ARGS((FILE *fp, buf_T *buf, u_entry_T *uep)); |
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109 static u_entry_T *unserialize_uep __ARGS((FILE *fp, int *error, char_u *file_name)); |
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110 static void serialize_pos __ARGS((pos_T pos, FILE *fp)); |
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111 static void unserialize_pos __ARGS((pos_T *pos, FILE *fp)); |
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112 static void serialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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113 static void unserialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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114 static void put_header_ptr __ARGS((FILE *fp, u_header_T *uhp)); |
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115 #endif |
7 | 116 |
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117 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE) |
7 | 118 static char_u *u_save_line __ARGS((linenr_T)); |
119 | |
120 static long u_newcount, u_oldcount; | |
121 | |
122 /* | |
123 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember | |
124 * the action that "u" should do. | |
125 */ | |
126 static int undo_undoes = FALSE; | |
127 | |
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128 static int lastmark = 0; |
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129 |
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130 #if defined(U_DEBUG) || defined(PROTO) |
1415 | 131 /* |
132 * Check the undo structures for being valid. Print a warning when something | |
133 * looks wrong. | |
134 */ | |
135 static int seen_b_u_curhead; | |
136 static int seen_b_u_newhead; | |
137 static int header_count; | |
138 | |
139 static void | |
140 u_check_tree(u_header_T *uhp, | |
141 u_header_T *exp_uh_next, | |
142 u_header_T *exp_uh_alt_prev) | |
143 { | |
144 u_entry_T *uep; | |
145 | |
146 if (uhp == NULL) | |
147 return; | |
148 ++header_count; | |
149 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1) | |
150 { | |
151 EMSG("b_u_curhead found twice (looping?)"); | |
152 return; | |
153 } | |
154 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1) | |
155 { | |
156 EMSG("b_u_newhead found twice (looping?)"); | |
157 return; | |
158 } | |
159 | |
160 if (uhp->uh_magic != UH_MAGIC) | |
161 EMSG("uh_magic wrong (may be using freed memory)"); | |
162 else | |
163 { | |
164 /* Check pointers back are correct. */ | |
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165 if (uhp->uh_next.ptr != exp_uh_next) |
1415 | 166 { |
167 EMSG("uh_next wrong"); | |
168 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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169 exp_uh_next, uhp->uh_next.ptr); |
1415 | 170 } |
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171 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev) |
1415 | 172 { |
173 EMSG("uh_alt_prev wrong"); | |
174 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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175 exp_uh_alt_prev, uhp->uh_alt_prev.ptr); |
1415 | 176 } |
177 | |
178 /* Check the undo tree at this header. */ | |
179 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) | |
180 { | |
181 if (uep->ue_magic != UE_MAGIC) | |
182 { | |
183 EMSG("ue_magic wrong (may be using freed memory)"); | |
184 break; | |
185 } | |
186 } | |
187 | |
188 /* Check the next alt tree. */ | |
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189 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp); |
1415 | 190 |
191 /* Check the next header in this branch. */ | |
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192 u_check_tree(uhp->uh_prev.ptr, uhp, NULL); |
1415 | 193 } |
194 } | |
195 | |
196 void | |
197 u_check(int newhead_may_be_NULL) | |
198 { | |
199 seen_b_u_newhead = 0; | |
200 seen_b_u_curhead = 0; | |
201 header_count = 0; | |
202 | |
203 u_check_tree(curbuf->b_u_oldhead, NULL, NULL); | |
204 | |
205 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL | |
206 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL)) | |
207 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead); | |
208 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0) | |
209 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead); | |
210 if (header_count != curbuf->b_u_numhead) | |
211 { | |
212 EMSG("b_u_numhead invalid"); | |
213 smsg((char_u *)"expected: %ld, actual: %ld", | |
214 (long)header_count, (long)curbuf->b_u_numhead); | |
215 } | |
216 } | |
217 #endif | |
218 | |
7 | 219 /* |
344 | 220 * Save the current line for both the "u" and "U" command. |
221 * Returns OK or FAIL. | |
7 | 222 */ |
223 int | |
224 u_save_cursor() | |
225 { | |
226 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1), | |
227 (linenr_T)(curwin->w_cursor.lnum + 1))); | |
228 } | |
229 | |
230 /* | |
231 * Save the lines between "top" and "bot" for both the "u" and "U" command. | |
232 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1. | |
233 * Returns FAIL when lines could not be saved, OK otherwise. | |
234 */ | |
235 int | |
236 u_save(top, bot) | |
237 linenr_T top, bot; | |
238 { | |
239 if (undo_off) | |
240 return OK; | |
241 | |
242 if (top > curbuf->b_ml.ml_line_count || | |
243 top >= bot || bot > curbuf->b_ml.ml_line_count + 1) | |
244 return FALSE; /* rely on caller to do error messages */ | |
245 | |
246 if (top + 2 == bot) | |
247 u_saveline((linenr_T)(top + 1)); | |
248 | |
249 return (u_savecommon(top, bot, (linenr_T)0)); | |
250 } | |
251 | |
252 /* | |
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253 * Save the line "lnum" (used by ":s" and "~" command). |
7 | 254 * The line is replaced, so the new bottom line is lnum + 1. |
255 */ | |
256 int | |
257 u_savesub(lnum) | |
258 linenr_T lnum; | |
259 { | |
260 if (undo_off) | |
261 return OK; | |
262 | |
263 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1)); | |
264 } | |
265 | |
266 /* | |
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267 * A new line is inserted before line "lnum" (used by :s command). |
7 | 268 * The line is inserted, so the new bottom line is lnum + 1. |
269 */ | |
270 int | |
271 u_inssub(lnum) | |
272 linenr_T lnum; | |
273 { | |
274 if (undo_off) | |
275 return OK; | |
276 | |
277 return (u_savecommon(lnum - 1, lnum, lnum + 1)); | |
278 } | |
279 | |
280 /* | |
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281 * Save the lines "lnum" - "lnum" + nlines (used by delete command). |
7 | 282 * The lines are deleted, so the new bottom line is lnum, unless the buffer |
283 * becomes empty. | |
284 */ | |
285 int | |
286 u_savedel(lnum, nlines) | |
287 linenr_T lnum; | |
288 long nlines; | |
289 { | |
290 if (undo_off) | |
291 return OK; | |
292 | |
293 return (u_savecommon(lnum - 1, lnum + nlines, | |
294 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum)); | |
295 } | |
296 | |
632 | 297 /* |
298 * Return TRUE when undo is allowed. Otherwise give an error message and | |
299 * return FALSE. | |
300 */ | |
912 | 301 int |
632 | 302 undo_allowed() |
303 { | |
304 /* Don't allow changes when 'modifiable' is off. */ | |
305 if (!curbuf->b_p_ma) | |
306 { | |
307 EMSG(_(e_modifiable)); | |
308 return FALSE; | |
309 } | |
310 | |
311 #ifdef HAVE_SANDBOX | |
312 /* In the sandbox it's not allowed to change the text. */ | |
313 if (sandbox != 0) | |
314 { | |
315 EMSG(_(e_sandbox)); | |
316 return FALSE; | |
317 } | |
318 #endif | |
319 | |
320 /* Don't allow changes in the buffer while editing the cmdline. The | |
321 * caller of getcmdline() may get confused. */ | |
634 | 322 if (textlock != 0) |
632 | 323 { |
324 EMSG(_(e_secure)); | |
325 return FALSE; | |
326 } | |
327 | |
328 return TRUE; | |
329 } | |
330 | |
7 | 331 static int |
332 u_savecommon(top, bot, newbot) | |
333 linenr_T top, bot; | |
334 linenr_T newbot; | |
335 { | |
753 | 336 linenr_T lnum; |
337 long i; | |
338 u_header_T *uhp; | |
339 u_header_T *old_curhead; | |
340 u_entry_T *uep; | |
341 u_entry_T *prev_uep; | |
342 long size; | |
7 | 343 |
632 | 344 /* When making changes is not allowed return FAIL. It's a crude way to |
345 * make all change commands fail. */ | |
346 if (!undo_allowed()) | |
7 | 347 return FAIL; |
348 | |
1415 | 349 #ifdef U_DEBUG |
350 u_check(FALSE); | |
351 #endif | |
7 | 352 #ifdef FEAT_NETBEANS_INTG |
353 /* | |
354 * Netbeans defines areas that cannot be modified. Bail out here when | |
355 * trying to change text in a guarded area. | |
356 */ | |
2210 | 357 if (netbeans_active()) |
7 | 358 { |
33 | 359 if (netbeans_is_guarded(top, bot)) |
360 { | |
361 EMSG(_(e_guarded)); | |
362 return FAIL; | |
363 } | |
364 if (curbuf->b_p_ro) | |
365 { | |
366 EMSG(_(e_nbreadonly)); | |
367 return FAIL; | |
368 } | |
7 | 369 } |
370 #endif | |
371 | |
372 #ifdef FEAT_AUTOCMD | |
373 /* | |
374 * Saving text for undo means we are going to make a change. Give a | |
375 * warning for a read-only file before making the change, so that the | |
376 * FileChangedRO event can replace the buffer with a read-write version | |
377 * (e.g., obtained from a source control system). | |
378 */ | |
379 change_warning(0); | |
380 #endif | |
381 | |
382 size = bot - top - 1; | |
383 | |
384 /* | |
385 * if curbuf->b_u_synced == TRUE make a new header | |
386 */ | |
387 if (curbuf->b_u_synced) | |
388 { | |
389 #ifdef FEAT_JUMPLIST | |
390 /* Need to create new entry in b_changelist. */ | |
391 curbuf->b_new_change = TRUE; | |
392 #endif | |
393 | |
753 | 394 if (p_ul >= 0) |
395 { | |
396 /* | |
397 * Make a new header entry. Do this first so that we don't mess | |
398 * up the undo info when out of memory. | |
399 */ | |
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400 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
753 | 401 if (uhp == NULL) |
402 goto nomem; | |
1415 | 403 #ifdef U_DEBUG |
404 uhp->uh_magic = UH_MAGIC; | |
405 #endif | |
753 | 406 } |
766 | 407 else |
408 uhp = NULL; | |
753 | 409 |
7 | 410 /* |
758 | 411 * If we undid more than we redid, move the entry lists before and |
412 * including curbuf->b_u_curhead to an alternate branch. | |
7 | 413 */ |
753 | 414 old_curhead = curbuf->b_u_curhead; |
415 if (old_curhead != NULL) | |
416 { | |
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417 curbuf->b_u_newhead = old_curhead->uh_next.ptr; |
753 | 418 curbuf->b_u_curhead = NULL; |
419 } | |
7 | 420 |
421 /* | |
422 * free headers to keep the size right | |
423 */ | |
424 while (curbuf->b_u_numhead > p_ul && curbuf->b_u_oldhead != NULL) | |
753 | 425 { |
758 | 426 u_header_T *uhfree = curbuf->b_u_oldhead; |
753 | 427 |
1415 | 428 if (uhfree == old_curhead) |
429 /* Can't reconnect the branch, delete all of it. */ | |
430 u_freebranch(curbuf, uhfree, &old_curhead); | |
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|
431 else if (uhfree->uh_alt_next.ptr == NULL) |
1415 | 432 /* There is no branch, only free one header. */ |
758 | 433 u_freeheader(curbuf, uhfree, &old_curhead); |
753 | 434 else |
435 { | |
436 /* Free the oldest alternate branch as a whole. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
437 while (uhfree->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
|
438 uhfree = uhfree->uh_alt_next.ptr; |
758 | 439 u_freebranch(curbuf, uhfree, &old_curhead); |
753 | 440 } |
1415 | 441 #ifdef U_DEBUG |
442 u_check(TRUE); | |
443 #endif | |
753 | 444 } |
7 | 445 |
766 | 446 if (uhp == NULL) /* no undo at all */ |
7 | 447 { |
753 | 448 if (old_curhead != NULL) |
449 u_freebranch(curbuf, old_curhead, NULL); | |
7 | 450 curbuf->b_u_synced = FALSE; |
451 return OK; | |
452 } | |
453 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
454 uhp->uh_prev.ptr = NULL; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
455 uhp->uh_next.ptr = curbuf->b_u_newhead; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
456 uhp->uh_alt_next.ptr = old_curhead; |
753 | 457 if (old_curhead != NULL) |
458 { | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
459 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
460 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
|
461 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
462 old_curhead->uh_alt_prev.ptr = uhp; |
753 | 463 if (curbuf->b_u_oldhead == old_curhead) |
464 curbuf->b_u_oldhead = uhp; | |
465 } | |
1056 | 466 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
467 uhp->uh_alt_prev.ptr = NULL; |
758 | 468 if (curbuf->b_u_newhead != NULL) |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
469 curbuf->b_u_newhead->uh_prev.ptr = uhp; |
758 | 470 |
777 | 471 uhp->uh_seq = ++curbuf->b_u_seq_last; |
472 curbuf->b_u_seq_cur = uhp->uh_seq; | |
758 | 473 uhp->uh_time = time(NULL); |
474 curbuf->b_u_seq_time = uhp->uh_time + 1; | |
475 | |
753 | 476 uhp->uh_walk = 0; |
7 | 477 uhp->uh_entry = NULL; |
478 uhp->uh_getbot_entry = NULL; | |
479 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */ | |
480 #ifdef FEAT_VIRTUALEDIT | |
481 if (virtual_active() && curwin->w_cursor.coladd > 0) | |
482 uhp->uh_cursor_vcol = getviscol(); | |
483 else | |
484 uhp->uh_cursor_vcol = -1; | |
485 #endif | |
486 | |
487 /* save changed and buffer empty flag for undo */ | |
488 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) + | |
489 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
490 | |
692 | 491 /* save named marks and Visual marks for undo */ |
7 | 492 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); |
692 | 493 #ifdef FEAT_VISUAL |
494 uhp->uh_visual = curbuf->b_visual; | |
495 #endif | |
496 | |
7 | 497 curbuf->b_u_newhead = uhp; |
498 if (curbuf->b_u_oldhead == NULL) | |
499 curbuf->b_u_oldhead = uhp; | |
500 ++curbuf->b_u_numhead; | |
501 } | |
502 else | |
503 { | |
504 if (p_ul < 0) /* no undo at all */ | |
505 return OK; | |
506 | |
507 /* | |
508 * When saving a single line, and it has been saved just before, it | |
509 * doesn't make sense saving it again. Saves a lot of memory when | |
510 * making lots of changes inside the same line. | |
511 * This is only possible if the previous change didn't increase or | |
512 * decrease the number of lines. | |
513 * Check the ten last changes. More doesn't make sense and takes too | |
514 * long. | |
515 */ | |
516 if (size == 1) | |
517 { | |
518 uep = u_get_headentry(); | |
519 prev_uep = NULL; | |
520 for (i = 0; i < 10; ++i) | |
521 { | |
522 if (uep == NULL) | |
523 break; | |
524 | |
525 /* If lines have been inserted/deleted we give up. | |
526 * Also when the line was included in a multi-line save. */ | |
527 if ((curbuf->b_u_newhead->uh_getbot_entry != uep | |
528 ? (uep->ue_top + uep->ue_size + 1 | |
529 != (uep->ue_bot == 0 | |
530 ? curbuf->b_ml.ml_line_count + 1 | |
531 : uep->ue_bot)) | |
532 : uep->ue_lcount != curbuf->b_ml.ml_line_count) | |
533 || (uep->ue_size > 1 | |
534 && top >= uep->ue_top | |
535 && top + 2 <= uep->ue_top + uep->ue_size + 1)) | |
536 break; | |
537 | |
538 /* If it's the same line we can skip saving it again. */ | |
539 if (uep->ue_size == 1 && uep->ue_top == top) | |
540 { | |
541 if (i > 0) | |
542 { | |
543 /* It's not the last entry: get ue_bot for the last | |
544 * entry now. Following deleted/inserted lines go to | |
545 * the re-used entry. */ | |
546 u_getbot(); | |
547 curbuf->b_u_synced = FALSE; | |
548 | |
549 /* Move the found entry to become the last entry. The | |
550 * order of undo/redo doesn't matter for the entries | |
551 * we move it over, since they don't change the line | |
552 * count and don't include this line. It does matter | |
553 * for the found entry if the line count is changed by | |
554 * the executed command. */ | |
555 prev_uep->ue_next = uep->ue_next; | |
556 uep->ue_next = curbuf->b_u_newhead->uh_entry; | |
557 curbuf->b_u_newhead->uh_entry = uep; | |
558 } | |
559 | |
560 /* The executed command may change the line count. */ | |
561 if (newbot != 0) | |
562 uep->ue_bot = newbot; | |
563 else if (bot > curbuf->b_ml.ml_line_count) | |
564 uep->ue_bot = 0; | |
565 else | |
566 { | |
567 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
568 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
569 } | |
570 return OK; | |
571 } | |
572 prev_uep = uep; | |
573 uep = uep->ue_next; | |
574 } | |
575 } | |
576 | |
577 /* find line number for ue_bot for previous u_save() */ | |
578 u_getbot(); | |
579 } | |
580 | |
581 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__) | |
582 /* | |
583 * With Amiga and MSDOS 16 bit we can't handle big undo's, because | |
584 * then u_alloc_line would have to allocate a block larger than 32K | |
585 */ | |
586 if (size >= 8000) | |
587 goto nomem; | |
588 #endif | |
589 | |
590 /* | |
591 * add lines in front of entry list | |
592 */ | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
593 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
7 | 594 if (uep == NULL) |
595 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
|
596 vim_memset(uep, 0, sizeof(u_entry_T)); |
1415 | 597 #ifdef U_DEBUG |
598 uep->ue_magic = UE_MAGIC; | |
599 #endif | |
7 | 600 |
601 uep->ue_size = size; | |
602 uep->ue_top = top; | |
603 if (newbot != 0) | |
604 uep->ue_bot = newbot; | |
605 /* | |
606 * Use 0 for ue_bot if bot is below last line. | |
607 * Otherwise we have to compute ue_bot later. | |
608 */ | |
609 else if (bot > curbuf->b_ml.ml_line_count) | |
610 uep->ue_bot = 0; | |
611 else | |
612 { | |
613 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
614 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
615 } | |
616 | |
168 | 617 if (size > 0) |
7 | 618 { |
168 | 619 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>
parents:
2229
diff
changeset
|
620 sizeof(char_u *) * size)) == NULL) |
7 | 621 { |
622 u_freeentry(uep, 0L); | |
623 goto nomem; | |
624 } | |
625 for (i = 0, lnum = top + 1; i < size; ++i) | |
626 { | |
481 | 627 fast_breakcheck(); |
628 if (got_int) | |
629 { | |
630 u_freeentry(uep, i); | |
631 return FAIL; | |
632 } | |
7 | 633 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL) |
634 { | |
635 u_freeentry(uep, i); | |
636 goto nomem; | |
637 } | |
638 } | |
639 } | |
359 | 640 else |
641 uep->ue_array = NULL; | |
7 | 642 uep->ue_next = curbuf->b_u_newhead->uh_entry; |
643 curbuf->b_u_newhead->uh_entry = uep; | |
644 curbuf->b_u_synced = FALSE; | |
645 undo_undoes = FALSE; | |
646 | |
1415 | 647 #ifdef U_DEBUG |
648 u_check(FALSE); | |
649 #endif | |
7 | 650 return OK; |
651 | |
652 nomem: | |
653 msg_silent = 0; /* must display the prompt */ | |
654 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE) | |
655 == 'y') | |
656 { | |
657 undo_off = TRUE; /* will be reset when character typed */ | |
658 return OK; | |
659 } | |
660 do_outofmem_msg((long_u)0); | |
661 return FAIL; | |
662 } | |
663 | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
664 #ifdef FEAT_PERSISTENT_UNDO |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
665 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
666 # 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
|
667 # 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
|
668 # 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
|
669 # 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
|
670 # 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
|
671 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
672 # define UF_VERSION 1 /* 2-byte undofile version number */ |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
673 # define UF_VERSION_CRYPT 0x8001 /* idem, encrypted */ |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
674 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
675 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
|
676 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
677 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
678 * 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
|
679 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
680 void |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
681 u_compute_hash(hash) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
682 char_u *hash; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
683 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
684 context_sha256_T ctx; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
685 linenr_T lnum; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
686 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
687 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
688 sha256_start(&ctx); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
689 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
|
690 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
691 p = ml_get(lnum); |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
692 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
|
693 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
694 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
|
695 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
696 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
697 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
698 * 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
|
699 * 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
|
700 * 'undodir'. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
701 * 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
|
702 * 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
|
703 */ |
2236
dc2e5ec0500d
Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents:
2235
diff
changeset
|
704 char_u * |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
705 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
|
706 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
|
707 int reading; |
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 char_u *dirp; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
710 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
|
711 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
|
712 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
|
713 int dir_len; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
714 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
715 struct stat st; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
716 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
|
717 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
718 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
|
719 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
720 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
721 if (ffname == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
722 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
723 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
724 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
725 /* 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
|
726 * 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
|
727 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
|
728 ffname = fname_buf; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
729 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
730 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
731 /* 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
|
732 * 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
|
733 dirp = p_udir; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
734 while (*dirp != NUL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
735 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
736 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
|
737 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
|
738 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
739 /* 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
|
740 * "dir/name" -> "dir/.name.un~" */ |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
741 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
|
742 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
|
743 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
744 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
|
745 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
|
746 *p = '.'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
747 STRCAT(p, ".un~"); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
748 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
749 else |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
750 { |
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_len] = NUL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
752 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
|
753 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
754 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
|
755 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
756 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
|
757 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
|
758 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
759 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
|
760 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
|
761 *p = '%'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
762 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
763 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
|
764 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
765 } |
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 /* 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
|
768 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
|
769 || 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
|
770 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
771 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
|
772 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
|
773 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
774 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
775 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
|
776 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
|
777 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
778 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
779 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
780 corruption_error(msg, file_name) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
781 char *msg; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
782 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
|
783 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
784 EMSG3(_("E825: Corrupted undo file (%s): %s"), msg, file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
785 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
786 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
787 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
788 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
|
789 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
|
790 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
791 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
|
792 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
|
793 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
794 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
|
795 while (uep != NULL) |
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 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
|
798 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
|
799 uep = nuep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
800 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
801 vim_free(uhp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
802 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
803 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
804 static int |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
805 serialize_header(fp, buf, hash) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
806 FILE *fp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
807 buf_T *buf; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
808 char_u *hash; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
809 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
810 int len; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
811 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
812 /* 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
|
813 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
|
814 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
|
815 |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
816 /* 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
|
817 * 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
|
818 #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
|
819 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
|
820 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
821 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
|
822 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
|
823 |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
824 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
|
825 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
|
826 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
|
827 return FAIL; |
2245
4e0124f5aee2
Optimize the blowfish crypt/decrypt code a bit more.
Bram Moolenaar <bram@vim.org>
parents:
2242
diff
changeset
|
828 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
|
829 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
|
830 if (len != 1) |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
831 return FAIL; |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
832 } |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
833 else |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
834 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
835 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
|
836 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
837 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
838 /* 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
|
839 * 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
|
840 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
|
841 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
842 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
843 /* buffer-specific data */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
844 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
|
845 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
|
846 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
|
847 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
|
848 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
849 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
|
850 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
|
851 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
852 /* Undo structures header data */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
853 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
|
854 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
|
855 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
|
856 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
857 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
|
858 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
|
859 put_bytes(fp, (long_u)buf->b_u_seq_cur, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
860 put_time(fp, buf->b_u_seq_time); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
861 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
862 return OK; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
863 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
864 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
865 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
|
866 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
|
867 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
|
868 buf_T *buf; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
869 u_header_T *uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
870 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
871 int i; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
872 u_entry_T *uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
873 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
874 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:
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diff
changeset
|
875 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
876 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
877 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:
2239
diff
changeset
|
878 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:
2239
diff
changeset
|
879 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:
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diff
changeset
|
880 put_header_ptr(fp, uhp->uh_alt_prev.ptr); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
881 put_bytes(fp, uhp->uh_seq, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
882 serialize_pos(uhp->uh_cursor, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
883 #ifdef FEAT_VIRTUALEDIT |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
884 put_bytes(fp, (long_u)uhp->uh_cursor_vcol, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
885 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
886 put_bytes(fp, (long_u)0, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
887 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
888 put_bytes(fp, (long_u)uhp->uh_flags, 2); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
889 /* Assume NMARKS will stay the same. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
890 for (i = 0; i < NMARKS; ++i) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
891 serialize_pos(uhp->uh_namedm[i], fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
892 #ifdef FEAT_VISUAL |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
893 serialize_visualinfo(&uhp->uh_visual, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
894 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
895 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
896 visualinfo_T info; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
897 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
898 memset(&info, 0, sizeof(visualinfo_T)); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
899 serialize_visualinfo(&info, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
900 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
901 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
902 put_time(fp, uhp->uh_time); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
903 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
904 /* Write all the entries. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
905 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
906 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
907 put_bytes(fp, (long_u)UF_ENTRY_MAGIC, 2); |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
908 if (serialize_uep(fp, buf, uep) == FAIL) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
909 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
910 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
911 put_bytes(fp, (long_u)UF_ENTRY_END_MAGIC, 2); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
912 return OK; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
913 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
914 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
915 static u_header_T * |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
916 unserialize_uhp(fp, file_name) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
917 FILE *fp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
918 char_u *file_name; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
919 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
920 u_header_T *uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
921 int i; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
922 u_entry_T *uep, *last_uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
923 int c; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
924 int error; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
925 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
926 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
927 if (uhp == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
928 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
929 vim_memset(uhp, 0, sizeof(u_header_T)); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
930 #ifdef U_DEBUG |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
931 uhp->uh_magic = UH_MAGIC; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
932 #endif |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
933 uhp->uh_next.seq = get4c(fp); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
934 uhp->uh_prev.seq = get4c(fp); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
935 uhp->uh_alt_next.seq = get4c(fp); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
936 uhp->uh_alt_prev.seq = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
937 uhp->uh_seq = get4c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
938 if (uhp->uh_seq <= 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
939 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
940 corruption_error("uh_seq", file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
941 vim_free(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
942 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
943 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
944 unserialize_pos(&uhp->uh_cursor, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
945 #ifdef FEAT_VIRTUALEDIT |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
946 uhp->uh_cursor_vcol = get4c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
947 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
948 (void)get4c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
949 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
950 uhp->uh_flags = get2c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
951 for (i = 0; i < NMARKS; ++i) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
952 unserialize_pos(&uhp->uh_namedm[i], fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
953 #ifdef FEAT_VISUAL |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
954 unserialize_visualinfo(&uhp->uh_visual, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
955 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
956 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
957 visualinfo_T info; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
958 unserialize_visualinfo(&info, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
959 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
960 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
961 uhp->uh_time = get8ctime(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
962 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
963 /* Unserialize the uep list. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
964 last_uep = NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
965 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
|
966 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
967 error = FALSE; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
968 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
|
969 if (last_uep == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
970 uhp->uh_entry = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
971 else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
972 last_uep->ue_next = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
973 last_uep = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
974 if (uep == NULL || error) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
975 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
976 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
977 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
978 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
979 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
980 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
|
981 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
982 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
|
983 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
984 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
985 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
986 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
987 return uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
988 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
989 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
990 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
991 * Serialize "uep" to "fp". |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
992 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
993 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
|
994 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
|
995 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
|
996 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
|
997 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
|
998 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
999 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1000 size_t len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1001 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1002 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
|
1003 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
|
1004 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
|
1005 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
|
1006 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
|
1007 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1008 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
|
1009 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
|
1010 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
|
1011 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
|
1012 return FAIL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1013 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1014 return OK; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1015 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1016 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1017 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
|
1018 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
|
1019 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1020 int *error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1021 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
|
1022 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1023 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1024 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
|
1025 char_u **array; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1026 char_u *line; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1027 int line_len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1028 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1029 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
|
1030 if (uep == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1031 return NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1032 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
|
1033 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1034 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
|
1035 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1036 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
|
1037 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
|
1038 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
|
1039 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
|
1040 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
|
1041 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1042 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
|
1043 if (array == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1044 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1045 *error = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1046 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1047 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1048 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
|
1049 } |
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
|
1050 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
|
1051 array = NULL; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1052 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
|
1053 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1054 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
|
1055 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1056 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
|
1057 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
|
1058 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
|
1059 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1060 { |
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Various improvements to undo file code to make it more robust.
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|
1061 line = NULL; |
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Various improvements to undo file code to make it more robust.
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diff
changeset
|
1062 corruption_error("line length", file_name); |
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Various improvements to undo file code to make it more robust.
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diff
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|
1063 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1064 if (line == NULL) |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1065 { |
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Various improvements to undo file code to make it more robust.
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|
1066 *error = TRUE; |
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Various improvements to undo file code to make it more robust.
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|
1067 return uep; |
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Various improvements to undo file code to make it more robust.
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diff
changeset
|
1068 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1069 array[i] = line; |
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Various improvements to undo file code to make it more robust.
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diff
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|
1070 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1071 return uep; |
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diff
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|
1072 } |
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Various improvements to undo file code to make it more robust.
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|
1073 |
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Various improvements to undo file code to make it more robust.
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diff
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|
1074 /* |
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Various improvements to undo file code to make it more robust.
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|
1075 * Serialize "pos" to "fp". |
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Various improvements to undo file code to make it more robust.
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diff
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|
1076 */ |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1077 static void |
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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
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|
1078 serialize_pos(pos, fp) |
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Various improvements to undo file code to make it more robust.
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diff
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|
1079 pos_T pos; |
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Various improvements to undo file code to make it more robust.
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diff
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|
1080 FILE *fp; |
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Various improvements to undo file code to make it more robust.
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|
1081 { |
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Various improvements to undo file code to make it more robust.
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|
1082 put_bytes(fp, (long_u)pos.lnum, 4); |
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Various improvements to undo file code to make it more robust.
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parents:
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|
1083 put_bytes(fp, (long_u)pos.col, 4); |
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Various improvements to undo file code to make it more robust.
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|
1084 #ifdef FEAT_VIRTUALEDIT |
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Various improvements to undo file code to make it more robust.
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diff
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|
1085 put_bytes(fp, (long_u)pos.coladd, 4); |
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Various improvements to undo file code to make it more robust.
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diff
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|
1086 #else |
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Various improvements to undo file code to make it more robust.
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diff
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|
1087 put_bytes(fp, (long_u)0, 4); |
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Various improvements to undo file code to make it more robust.
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diff
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|
1088 #endif |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1089 } |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1090 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1091 /* |
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Various improvements to undo file code to make it more robust.
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diff
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|
1092 * Unserialize the pos_T at the current position in fp. |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1093 */ |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1094 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1095 unserialize_pos(pos, 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
|
1096 pos_T *pos; |
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Various improvements to undo file code to make it more robust.
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|
1097 FILE *fp; |
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Various improvements to undo file code to make it more robust.
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diff
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|
1098 { |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1099 pos->lnum = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1100 if (pos->lnum < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1101 pos->lnum = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1102 pos->col = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1103 if (pos->col < 0) |
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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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|
1104 pos->col = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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changeset
|
1105 #ifdef FEAT_VIRTUALEDIT |
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Various improvements to undo file code to make it more robust.
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diff
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|
1106 pos->coladd = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1107 if (pos->coladd < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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2236
diff
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|
1108 pos->coladd = 0; |
2231
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Various improvements to undo file code to make it more robust.
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diff
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|
1109 #else |
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Various improvements to undo file code to make it more robust.
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|
1110 (void)get4c(fp); |
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Various improvements to undo file code to make it more robust.
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diff
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|
1111 #endif |
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Various improvements to undo file code to make it more robust.
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diff
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|
1112 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1113 |
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1114 /* |
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Various improvements to undo file code to make it more robust.
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2230
diff
changeset
|
1115 * Serialize "info" to "fp". |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
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|
1116 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1117 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1118 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
|
1119 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1120 FILE *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
|
1121 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1122 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
|
1123 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
|
1124 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
|
1125 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
|
1126 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1127 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1128 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1129 * 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
|
1130 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1131 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1132 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
|
1133 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1134 FILE *fp; |
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 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
|
1137 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
|
1138 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
|
1139 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
|
1140 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1141 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1142 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1143 * 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
|
1144 * 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
|
1145 * pointers when reading. */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1146 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1147 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
|
1148 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1149 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
|
1150 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1151 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
|
1152 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1153 |
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 * 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
|
1156 * 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
|
1157 * Otherwise use buf->b_ffname to generate the undo file name. |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1158 * "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.
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parents:
2230
diff
changeset
|
1159 * permissions. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1160 * "forceit" is TRUE for ":wundo!", FALSE otherwise. |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1161 * "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.
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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 void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1164 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
|
1165 char_u *name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1166 int forceit; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1167 buf_T *buf; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1168 char_u *hash; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1169 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1170 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
|
1171 char_u *file_name; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1172 int mark; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1173 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1174 int headers_written = 0; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1175 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1176 int fd; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1177 FILE *fp = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1178 int perm; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1179 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
|
1180 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1181 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
|
1182 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
|
1183 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
|
1184 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1185 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1186 if (name == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1187 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1188 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
|
1189 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
|
1190 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1191 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
|
1192 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1193 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1194 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
|
1195 _("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
|
1196 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1197 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1198 return; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1199 } |
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 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1202 file_name = name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1203 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1204 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1205 * 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
|
1206 * 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
|
1207 * 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
|
1208 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1209 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1210 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
|
1211 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1212 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1213 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
|
1214 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1215 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
|
1216 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
|
1217 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1218 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1219 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
|
1220 if (perm < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1221 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1222 #endif |
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 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1225 /* 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
|
1226 perm = perm & 0777; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1227 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1228 /* 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
|
1229 * 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
|
1230 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
|
1231 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1232 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
|
1233 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1234 /* 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
|
1235 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
|
1236 if (fd < 0) |
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 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
|
1239 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1240 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
|
1241 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1242 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
|
1243 _("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
|
1244 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
|
1245 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
|
1246 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1247 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1248 goto theend; |
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 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1251 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1252 char_u 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
|
1253 int len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1254 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1255 len = vim_read(fd, 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
|
1256 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1257 if (len < 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
|
1258 || memcmp(buf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0) |
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 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
|
1261 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1262 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
|
1263 verbose_enter(); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1264 smsg((char_u *) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1265 _("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
|
1266 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
|
1267 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
|
1268 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1269 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1270 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1271 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1272 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1273 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1274 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
|
1275 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1276 |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1277 /* 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
|
1278 * existing undo file. */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1279 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
|
1280 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1281 if (p_verbose > 0) |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1282 verb_msg((char_u *)_("Skipping undo file write, noting to undo")); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1283 goto theend; |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1284 } |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1285 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1286 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
|
1287 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
|
1288 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1289 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1290 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
|
1291 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1292 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1293 (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
|
1294 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
|
1295 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1296 verbose_enter(); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1297 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
|
1298 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1299 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1300 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1301 #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
|
1302 /* 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
|
1303 u_check(FALSE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1304 #endif |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1305 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1306 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1307 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1308 * 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
|
1309 * 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
|
1310 * 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
|
1311 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1312 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
|
1313 && 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
|
1314 # 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
|
1315 && 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
|
1316 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1317 ) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1318 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
|
1319 # ifdef HAVE_SELINUX |
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 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
|
1322 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1323 #endif |
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 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
|
1326 if (fp == NULL) |
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 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
|
1329 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1330 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
|
1331 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1332 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1333 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1334 /* Undo must be synced. */ |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1335 u_sync(TRUE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1336 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1337 /* |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1338 * Write the header. |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1339 */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1340 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
|
1341 goto write_error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1342 |
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 * 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
|
1345 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1346 mark = ++lastmark; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1347 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
|
1348 while (uhp != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1349 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1350 /* 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
|
1351 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
|
1352 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1353 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
|
1354 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1355 ++headers_written; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1356 #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
|
1357 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
|
1358 goto write_error; |
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 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1361 /* 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
|
1362 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
|
1363 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
|
1364 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
|
1365 && 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
|
1366 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
|
1367 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
|
1368 && 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
|
1369 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
|
1370 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
|
1371 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
|
1372 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1373 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
|
1374 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1375 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1376 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
|
1377 write_ok = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1378 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1379 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
|
1380 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
|
1381 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
|
1382 #endif |
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 write_error: |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1385 fclose(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1386 if (!write_ok) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1387 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
|
1388 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1389 #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
|
1390 /* 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
|
1391 * 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
|
1392 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
|
1393 (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
|
1394 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1395 #ifdef HAVE_ACL |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1396 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
|
1397 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1398 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
|
1399 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1400 /* 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
|
1401 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
|
1402 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
|
1403 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1404 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1405 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1406 theend: |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1407 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
|
1408 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
|
1409 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1410 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1411 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1412 * 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
|
1413 * 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
|
1414 * 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
|
1415 * 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
|
1416 * "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
|
1417 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1418 void |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1419 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
|
1420 char_u *name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1421 char_u *hash; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1422 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
|
1423 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1424 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
|
1425 FILE *fp; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1426 long version, str_len; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1427 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
|
1428 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
|
1429 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
|
1430 linenr_T line_count; |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
1431 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
|
1432 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
|
1433 long seq_last, seq_cur; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1434 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
|
1435 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
|
1436 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
|
1437 int i, j; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1438 int c; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1439 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
|
1440 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
|
1441 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
|
1442 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
|
1443 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1444 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
|
1445 #endif |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1446 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1447 struct stat st_orig; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1448 struct stat st_undo; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1449 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1450 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1451 if (name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1452 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1453 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
|
1454 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
|
1455 return; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1456 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1457 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1458 /* 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
|
1459 * owner of the text file. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1460 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
|
1461 && 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
|
1462 && 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
|
1463 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1464 if (p_verbose > 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1465 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1466 verbose_enter(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1467 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
|
1468 file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1469 verbose_leave(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1470 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1471 return; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1472 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1473 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1474 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1475 else |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1476 file_name = name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1477 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1478 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
|
1479 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1480 verbose_enter(); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1481 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
|
1482 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1483 } |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1484 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1485 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
|
1486 if (fp == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1487 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1488 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
|
1489 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
|
1490 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1491 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1492 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1493 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1494 * 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
|
1495 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1496 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
|
1497 || 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
|
1498 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1499 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
|
1500 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1501 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1502 version = get2c(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
|
1503 if (version == UF_VERSION_CRYPT) |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1504 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1505 #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
|
1506 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
|
1507 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1508 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
|
1509 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
|
1510 } |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1511 #else |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1512 EMSG2(_("E826: Undo file is encrypted: %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
|
1513 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
|
1514 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1515 } |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1516 else if (version != UF_VERSION) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1517 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1518 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
|
1519 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1520 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1521 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1522 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
|
1523 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1524 corruption_error("hash", file_name); |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1525 goto error; |
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1526 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1527 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
|
1528 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
|
1529 || 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
|
1530 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1531 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
|
1532 { |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1533 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
|
1534 verbose_enter(); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1535 give_warning((char_u *) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1536 _("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
|
1537 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
|
1538 verbose_leave(); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1539 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1540 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1541 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1542 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1543 /* 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
|
1544 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
|
1545 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
|
1546 goto error; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1547 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
|
1548 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
|
1549 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
|
1550 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
|
1551 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
|
1552 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1553 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
|
1554 goto error; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1555 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1556 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1557 /* 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
|
1558 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
|
1559 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
|
1560 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
|
1561 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
|
1562 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
|
1563 seq_cur = get4c(fp); |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1564 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
|
1565 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1566 /* 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
|
1567 * 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
|
1568 * 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
|
1569 * 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
|
1570 if (num_head > 0) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1571 { |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1572 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
|
1573 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
|
1574 if (uhp_table == NULL) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1575 goto error; |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1576 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1577 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1578 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
|
1579 { |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1580 if (num_read_uhps >= num_head) |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1581 { |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1582 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
|
1583 goto error; |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1584 } |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1585 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1586 uhp = unserialize_uhp(fp, file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1587 if (uhp == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1588 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1589 uhp_table[num_read_uhps++] = uhp; |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1590 } |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1591 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1592 if (num_read_uhps != num_head) |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1593 { |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1594 corruption_error("num_head", file_name); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1595 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1596 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1597 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
|
1598 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1599 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
|
1600 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1601 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1602 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1603 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1604 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
|
1605 (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
|
1606 # 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
|
1607 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1608 # 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
|
1609 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1610 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1611 /* 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
|
1612 * 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
|
1613 * 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
|
1614 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
|
1615 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1616 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
|
1617 if (uhp == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1618 continue; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1619 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
|
1620 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
|
1621 && 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
|
1622 { |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1623 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
|
1624 goto error; |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1625 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1626 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
|
1627 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
|
1628 && 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
|
1629 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1630 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
|
1631 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1632 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1633 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1634 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
|
1635 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
|
1636 && 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
|
1637 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1638 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
|
1639 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1640 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1641 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1642 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
|
1643 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
|
1644 && 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
|
1645 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1646 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
|
1647 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1648 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1649 } |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1650 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
|
1651 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
|
1652 && 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
|
1653 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1654 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
|
1655 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1656 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1657 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1658 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
|
1659 { |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1660 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
|
1661 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1662 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1663 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
|
1664 { |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1665 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
|
1666 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1667 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1668 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
|
1669 { |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1670 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
|
1671 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1672 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1673 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1674 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1675 /* 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
|
1676 * 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
|
1677 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
|
1678 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
|
1679 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
|
1680 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
|
1681 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
|
1682 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
|
1683 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
|
1684 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
|
1685 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
|
1686 curbuf->b_u_seq_cur = seq_cur; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1687 curbuf->b_u_seq_time = seq_time; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1688 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1689 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
|
1690 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
|
1691 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1692 #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
|
1693 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
|
1694 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
|
1695 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
|
1696 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
|
1697 u_check(TRUE); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1698 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1699 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1700 if (name != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1701 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
|
1702 goto theend; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1703 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1704 error: |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1705 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
|
1706 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
|
1707 { |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1708 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
|
1709 if (uhp_table[i] != NULL) |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1710 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
|
1711 vim_free(uhp_table); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1712 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1713 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1714 theend: |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1715 if (fp != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1716 fclose(fp); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1717 if (file_name != name) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1718 vim_free(file_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1719 return; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1720 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1721 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1722 #endif /* FEAT_PERSISTENT_UNDO */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1723 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1724 |
7 | 1725 /* |
1726 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible). | |
1727 * If 'cpoptions' does not contain 'u': Always undo. | |
1728 */ | |
1729 void | |
1730 u_undo(count) | |
1731 int count; | |
1732 { | |
1733 /* | |
1734 * If we get an undo command while executing a macro, we behave like the | |
1735 * original vi. If this happens twice in one macro the result will not | |
1736 * be compatible. | |
1737 */ | |
1738 if (curbuf->b_u_synced == FALSE) | |
1739 { | |
825 | 1740 u_sync(TRUE); |
7 | 1741 count = 1; |
1742 } | |
1743 | |
1744 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
1745 undo_undoes = TRUE; | |
1746 else | |
1747 undo_undoes = !undo_undoes; | |
1748 u_doit(count); | |
1749 } | |
1750 | |
1751 /* | |
1752 * If 'cpoptions' contains 'u': Repeat the previous undo or redo. | |
1753 * If 'cpoptions' does not contain 'u': Always redo. | |
1754 */ | |
1755 void | |
1756 u_redo(count) | |
1757 int count; | |
1758 { | |
1759 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
1760 undo_undoes = FALSE; | |
1761 u_doit(count); | |
1762 } | |
1763 | |
1764 /* | |
1765 * Undo or redo, depending on 'undo_undoes', 'count' times. | |
1766 */ | |
1767 static void | |
777 | 1768 u_doit(startcount) |
1769 int startcount; | |
7 | 1770 { |
777 | 1771 int count = startcount; |
1772 | |
632 | 1773 if (!undo_allowed()) |
7 | 1774 return; |
1775 | |
1776 u_newcount = 0; | |
1777 u_oldcount = 0; | |
179 | 1778 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
1779 u_oldcount = -1; | |
7 | 1780 while (count--) |
1781 { | |
1782 if (undo_undoes) | |
1783 { | |
1784 if (curbuf->b_u_curhead == NULL) /* first undo */ | |
1785 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
1786 else if (p_ul > 0) /* multi level undo */ | |
1787 /* get next undo */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1788 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr; |
7 | 1789 /* nothing to undo */ |
1790 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL) | |
1791 { | |
1792 /* stick curbuf->b_u_curhead at end */ | |
1793 curbuf->b_u_curhead = curbuf->b_u_oldhead; | |
1794 beep_flush(); | |
777 | 1795 if (count == startcount - 1) |
1796 { | |
1797 MSG(_("Already at oldest change")); | |
1798 return; | |
1799 } | |
7 | 1800 break; |
1801 } | |
1802 | |
777 | 1803 u_undoredo(TRUE); |
7 | 1804 } |
1805 else | |
1806 { | |
1807 if (curbuf->b_u_curhead == NULL || p_ul <= 0) | |
1808 { | |
1809 beep_flush(); /* nothing to redo */ | |
777 | 1810 if (count == startcount - 1) |
1811 { | |
1812 MSG(_("Already at newest change")); | |
1813 return; | |
1814 } | |
7 | 1815 break; |
1816 } | |
1817 | |
777 | 1818 u_undoredo(FALSE); |
753 | 1819 |
1820 /* Advance for next redo. Set "newhead" when at the end of the | |
1821 * redoable changes. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1822 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
753 | 1823 curbuf->b_u_newhead = curbuf->b_u_curhead; |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1824 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr; |
7 | 1825 } |
1826 } | |
798 | 1827 u_undo_end(undo_undoes, FALSE); |
753 | 1828 } |
1829 | |
1830 /* | |
1831 * Undo or redo over the timeline. | |
1832 * When "step" is negative go back in time, otherwise goes forward in time. | |
758 | 1833 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as |
1834 * seconds. | |
772 | 1835 * When "absolute" is TRUE use "step" as the sequence number to jump to. |
1836 * "sec" must be FALSE then. | |
753 | 1837 */ |
1838 void | |
772 | 1839 undo_time(step, sec, absolute) |
758 | 1840 long step; |
1841 int sec; | |
772 | 1842 int absolute; |
753 | 1843 { |
1844 long target; | |
1845 long closest; | |
758 | 1846 long closest_start; |
1847 long closest_seq = 0; | |
1848 long val; | |
753 | 1849 u_header_T *uhp; |
1850 u_header_T *last; | |
1851 int mark; | |
1852 int nomark; | |
1853 int round; | |
758 | 1854 int dosec = sec; |
1855 int above = FALSE; | |
794 | 1856 int did_undo = TRUE; |
753 | 1857 |
766 | 1858 /* First make sure the current undoable change is synced. */ |
1859 if (curbuf->b_u_synced == FALSE) | |
825 | 1860 u_sync(TRUE); |
766 | 1861 |
753 | 1862 u_newcount = 0; |
1863 u_oldcount = 0; | |
179 | 1864 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
753 | 1865 u_oldcount = -1; |
1866 | |
777 | 1867 /* "target" is the node below which we want to be. |
1868 * Init "closest" to a value we can't reach. */ | |
772 | 1869 if (absolute) |
1870 { | |
1871 target = step; | |
777 | 1872 closest = -1; |
753 | 1873 } |
1874 else | |
1875 { | |
777 | 1876 /* When doing computations with time_t subtract starttime, because |
1877 * time_t converted to a long may result in a wrong number. */ | |
758 | 1878 if (sec) |
777 | 1879 target = (long)(curbuf->b_u_seq_time - starttime) + step; |
1880 else | |
1881 target = curbuf->b_u_seq_cur + step; | |
1882 if (step < 0) | |
758 | 1883 { |
777 | 1884 if (target < 0) |
1885 target = 0; | |
1886 closest = -1; | |
758 | 1887 } |
1888 else | |
1889 { | |
777 | 1890 if (sec) |
798 | 1891 closest = (long)(time(NULL) - starttime + 1); |
777 | 1892 else |
1893 closest = curbuf->b_u_seq_last + 2; | |
1894 if (target >= closest) | |
1895 target = closest - 1; | |
758 | 1896 } |
753 | 1897 } |
758 | 1898 closest_start = closest; |
777 | 1899 closest_seq = curbuf->b_u_seq_cur; |
753 | 1900 |
758 | 1901 /* |
1902 * May do this twice: | |
753 | 1903 * 1. Search for "target", update "closest" to the best match found. |
758 | 1904 * 2. If "target" not found search for "closest". |
1905 * | |
1906 * When using the closest time we use the sequence number in the second | |
1907 * round, because there may be several entries with the same time. | |
1908 */ | |
753 | 1909 for (round = 1; round <= 2; ++round) |
1910 { | |
1911 /* Find the path from the current state to where we want to go. The | |
1912 * desired state can be anywhere in the undo tree, need to go all over | |
1913 * it. We put "nomark" in uh_walk where we have been without success, | |
1914 * "mark" where it could possibly be. */ | |
1915 mark = ++lastmark; | |
1916 nomark = ++lastmark; | |
1917 | |
1918 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */ | |
1919 uhp = curbuf->b_u_newhead; | |
1920 else | |
1921 uhp = curbuf->b_u_curhead; | |
1922 | |
1923 while (uhp != NULL) | |
1924 { | |
1925 uhp->uh_walk = mark; | |
798 | 1926 val = (long)(dosec ? (uhp->uh_time - starttime) : uhp->uh_seq); |
753 | 1927 |
758 | 1928 if (round == 1) |
1929 { | |
1930 /* Remember the header that is closest to the target. | |
1931 * It must be at least in the right direction (checked with | |
777 | 1932 * "b_u_seq_cur"). When the timestamp is equal find the |
758 | 1933 * highest/lowest sequence number. */ |
777 | 1934 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur |
1935 : uhp->uh_seq > curbuf->b_u_seq_cur) | |
1936 && ((dosec && val == closest) | |
1937 ? (step < 0 | |
1938 ? uhp->uh_seq < closest_seq | |
1939 : uhp->uh_seq > closest_seq) | |
1940 : closest == closest_start | |
1941 || (val > target | |
1942 ? (closest > target | |
1943 ? val - target <= closest - target | |
1944 : val - target <= target - closest) | |
1945 : (closest > target | |
1946 ? target - val <= closest - target | |
1947 : target - val <= target - closest)))) | |
758 | 1948 { |
1949 closest = val; | |
1950 closest_seq = uhp->uh_seq; | |
1951 } | |
1952 } | |
1953 | |
1954 /* Quit searching when we found a match. But when searching for a | |
1955 * time we need to continue looking for the best uh_seq. */ | |
1956 if (target == val && !dosec) | |
1957 break; | |
753 | 1958 |
1959 /* go down in the tree if we haven't been there */ | |
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1960 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
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1961 && uhp->uh_prev.ptr->uh_walk != mark) |
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1962 uhp = uhp->uh_prev.ptr; |
753 | 1963 |
1964 /* go to alternate branch if we haven't been there */ | |
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1965 else if (uhp->uh_alt_next.ptr != NULL |
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1966 && uhp->uh_alt_next.ptr->uh_walk != nomark |
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1967 && uhp->uh_alt_next.ptr->uh_walk != mark) |
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1968 uhp = uhp->uh_alt_next.ptr; |
753 | 1969 |
1970 /* go up in the tree if we haven't been there and we are at the | |
1971 * start of alternate branches */ | |
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1972 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
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1973 && uhp->uh_next.ptr->uh_walk != nomark |
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1974 && uhp->uh_next.ptr->uh_walk != mark) |
798 | 1975 { |
1976 /* If still at the start we don't go through this change. */ | |
1977 if (uhp == curbuf->b_u_curhead) | |
1978 uhp->uh_walk = nomark; | |
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1979 uhp = uhp->uh_next.ptr; |
798 | 1980 } |
753 | 1981 |
1982 else | |
1983 { | |
1984 /* need to backtrack; mark this node as useless */ | |
1985 uhp->uh_walk = nomark; | |
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1986 if (uhp->uh_alt_prev.ptr != NULL) |
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1987 uhp = uhp->uh_alt_prev.ptr; |
753 | 1988 else |
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1989 uhp = uhp->uh_next.ptr; |
753 | 1990 } |
1991 } | |
1992 | |
1993 if (uhp != NULL) /* found it */ | |
1994 break; | |
772 | 1995 |
1996 if (absolute) | |
1997 { | |
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1998 EMSGN(_("E830: Undo number %ld not found"), step); |
772 | 1999 return; |
2000 } | |
2001 | |
758 | 2002 if (closest == closest_start) |
753 | 2003 { |
758 | 2004 if (step < 0) |
2005 MSG(_("Already at oldest change")); | |
2006 else | |
2007 MSG(_("Already at newest change")); | |
753 | 2008 return; |
2009 } | |
2010 | |
758 | 2011 target = closest_seq; |
2012 dosec = FALSE; | |
2013 if (step < 0) | |
2014 above = TRUE; /* stop above the header */ | |
753 | 2015 } |
2016 | |
2017 /* If we found it: Follow the path to go to where we want to be. */ | |
2018 if (uhp != NULL) | |
2019 { | |
2020 /* | |
2021 * First go up the tree as much as needed. | |
2022 */ | |
2023 for (;;) | |
2024 { | |
2025 uhp = curbuf->b_u_curhead; | |
2026 if (uhp == NULL) | |
2027 uhp = curbuf->b_u_newhead; | |
2028 else | |
2242
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2029 uhp = uhp->uh_next.ptr; |
777 | 2030 if (uhp == NULL || uhp->uh_walk != mark |
2031 || (uhp->uh_seq == target && !above)) | |
753 | 2032 break; |
2033 curbuf->b_u_curhead = uhp; | |
777 | 2034 u_undoredo(TRUE); |
753 | 2035 uhp->uh_walk = nomark; /* don't go back down here */ |
2036 } | |
2037 | |
2038 /* | |
758 | 2039 * And now go down the tree (redo), branching off where needed. |
753 | 2040 */ |
2041 uhp = curbuf->b_u_curhead; | |
777 | 2042 while (uhp != NULL) |
753 | 2043 { |
1056 | 2044 /* Go back to the first branch with a mark. */ |
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2045 while (uhp->uh_alt_prev.ptr != NULL |
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2046 && uhp->uh_alt_prev.ptr->uh_walk == mark) |
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2047 uhp = uhp->uh_alt_prev.ptr; |
1056 | 2048 |
753 | 2049 /* Find the last branch with a mark, that's the one. */ |
2050 last = uhp; | |
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2051 while (last->uh_alt_next.ptr != NULL |
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2052 && last->uh_alt_next.ptr->uh_walk == mark) |
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2053 last = last->uh_alt_next.ptr; |
753 | 2054 if (last != uhp) |
2055 { | |
2056 /* Make the used branch the first entry in the list of | |
2057 * alternatives to make "u" and CTRL-R take this branch. */ | |
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2058 while (uhp->uh_alt_prev.ptr != NULL) |
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2059 uhp = uhp->uh_alt_prev.ptr; |
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2060 if (last->uh_alt_next.ptr != NULL) |
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2061 last->uh_alt_next.ptr->uh_alt_prev.ptr = |
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2062 last->uh_alt_prev.ptr; |
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2063 last->uh_alt_prev.ptr->uh_alt_next.ptr = last->uh_alt_next.ptr; |
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2064 last->uh_alt_prev.ptr = NULL; |
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2065 last->uh_alt_next.ptr = uhp; |
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2066 uhp->uh_alt_prev.ptr = last; |
753 | 2067 |
2234 | 2068 if (curbuf->b_u_oldhead == uhp) |
2069 curbuf->b_u_oldhead = last; | |
753 | 2070 uhp = last; |
2242
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2071 if (uhp->uh_next.ptr != NULL) |
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2072 uhp->uh_next.ptr->uh_prev.ptr = uhp; |
753 | 2073 } |
758 | 2074 curbuf->b_u_curhead = uhp; |
753 | 2075 |
2076 if (uhp->uh_walk != mark) | |
2077 break; /* must have reached the target */ | |
2078 | |
758 | 2079 /* Stop when going backwards in time and didn't find the exact |
2080 * header we were looking for. */ | |
2081 if (uhp->uh_seq == target && above) | |
798 | 2082 { |
2083 curbuf->b_u_seq_cur = target - 1; | |
758 | 2084 break; |
798 | 2085 } |
758 | 2086 |
777 | 2087 u_undoredo(FALSE); |
753 | 2088 |
2089 /* Advance "curhead" to below the header we last used. If it | |
2090 * becomes NULL then we need to set "newhead" to this leaf. */ | |
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2091 if (uhp->uh_prev.ptr == NULL) |
753 | 2092 curbuf->b_u_newhead = uhp; |
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|
2093 curbuf->b_u_curhead = uhp->uh_prev.ptr; |
794 | 2094 did_undo = FALSE; |
753 | 2095 |
2096 if (uhp->uh_seq == target) /* found it! */ | |
2097 break; | |
2098 | |
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2099 uhp = uhp->uh_prev.ptr; |
753 | 2100 if (uhp == NULL || uhp->uh_walk != mark) |
2101 { | |
777 | 2102 /* Need to redo more but can't find it... */ |
753 | 2103 EMSG2(_(e_intern2), "undo_time()"); |
2104 break; | |
2105 } | |
2106 } | |
2107 } | |
798 | 2108 u_undo_end(did_undo, absolute); |
7 | 2109 } |
2110 | |
2111 /* | |
2112 * u_undoredo: common code for undo and redo | |
2113 * | |
2114 * The lines in the file are replaced by the lines in the entry list at | |
2115 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry | |
2116 * list for the next undo/redo. | |
777 | 2117 * |
2118 * When "undo" is TRUE we go up in the tree, when FALSE we go down. | |
7 | 2119 */ |
2120 static void | |
777 | 2121 u_undoredo(undo) |
2122 int undo; | |
7 | 2123 { |
2124 char_u **newarray = NULL; | |
2125 linenr_T oldsize; | |
2126 linenr_T newsize; | |
2127 linenr_T top, bot; | |
2128 linenr_T lnum; | |
2129 linenr_T newlnum = MAXLNUM; | |
2130 long i; | |
2131 u_entry_T *uep, *nuep; | |
2132 u_entry_T *newlist = NULL; | |
2133 int old_flags; | |
2134 int new_flags; | |
2135 pos_T namedm[NMARKS]; | |
692 | 2136 #ifdef FEAT_VISUAL |
2137 visualinfo_T visualinfo; | |
2138 #endif | |
7 | 2139 int empty_buffer; /* buffer became empty */ |
758 | 2140 u_header_T *curhead = curbuf->b_u_curhead; |
7 | 2141 |
1415 | 2142 #ifdef U_DEBUG |
2143 u_check(FALSE); | |
2144 #endif | |
758 | 2145 old_flags = curhead->uh_flags; |
7 | 2146 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) + |
2147 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
2148 setpcmark(); | |
2149 | |
2150 /* | |
2151 * save marks before undo/redo | |
2152 */ | |
2153 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); | |
692 | 2154 #ifdef FEAT_VISUAL |
2155 visualinfo = curbuf->b_visual; | |
2156 #endif | |
7 | 2157 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count; |
2158 curbuf->b_op_start.col = 0; | |
2159 curbuf->b_op_end.lnum = 0; | |
2160 curbuf->b_op_end.col = 0; | |
2161 | |
758 | 2162 for (uep = curhead->uh_entry; uep != NULL; uep = nuep) |
7 | 2163 { |
2164 top = uep->ue_top; | |
2165 bot = uep->ue_bot; | |
2166 if (bot == 0) | |
2167 bot = curbuf->b_ml.ml_line_count + 1; | |
2168 if (top > curbuf->b_ml.ml_line_count || top >= bot | |
2169 || bot > curbuf->b_ml.ml_line_count + 1) | |
2170 { | |
2171 EMSG(_("E438: u_undo: line numbers wrong")); | |
2172 changed(); /* don't want UNCHANGED now */ | |
2173 return; | |
2174 } | |
2175 | |
2176 oldsize = bot - top - 1; /* number of lines before undo */ | |
2177 newsize = uep->ue_size; /* number of lines after undo */ | |
2178 | |
2179 if (top < newlnum) | |
2180 { | |
2181 /* If the saved cursor is somewhere in this undo block, move it to | |
2182 * the remembered position. Makes "gwap" put the cursor back | |
2183 * where it was. */ | |
758 | 2184 lnum = curhead->uh_cursor.lnum; |
7 | 2185 if (lnum >= top && lnum <= top + newsize + 1) |
2186 { | |
758 | 2187 curwin->w_cursor = curhead->uh_cursor; |
7 | 2188 newlnum = curwin->w_cursor.lnum - 1; |
2189 } | |
2190 else | |
2191 { | |
2192 /* Use the first line that actually changed. Avoids that | |
2193 * undoing auto-formatting puts the cursor in the previous | |
2194 * line. */ | |
2195 for (i = 0; i < newsize && i < oldsize; ++i) | |
2196 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0) | |
2197 break; | |
2198 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL) | |
2199 { | |
2200 newlnum = top; | |
2201 curwin->w_cursor.lnum = newlnum + 1; | |
2202 } | |
2203 else if (i < newsize) | |
2204 { | |
2205 newlnum = top + i; | |
2206 curwin->w_cursor.lnum = newlnum + 1; | |
2207 } | |
2208 } | |
2209 } | |
2210 | |
2211 empty_buffer = FALSE; | |
2212 | |
2213 /* delete the lines between top and bot and save them in newarray */ | |
168 | 2214 if (oldsize > 0) |
7 | 2215 { |
168 | 2216 if ((newarray = (char_u **)U_ALLOC_LINE( |
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2217 sizeof(char_u *) * oldsize)) == NULL) |
7 | 2218 { |
2219 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize)); | |
2220 /* | |
2221 * We have messed up the entry list, repair is impossible. | |
2222 * we have to free the rest of the list. | |
2223 */ | |
2224 while (uep != NULL) | |
2225 { | |
2226 nuep = uep->ue_next; | |
2227 u_freeentry(uep, uep->ue_size); | |
2228 uep = nuep; | |
2229 } | |
2230 break; | |
2231 } | |
2232 /* delete backwards, it goes faster in most cases */ | |
2233 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum) | |
2234 { | |
2235 /* what can we do when we run out of memory? */ | |
2236 if ((newarray[i] = u_save_line(lnum)) == NULL) | |
2237 do_outofmem_msg((long_u)0); | |
2238 /* remember we deleted the last line in the buffer, and a | |
2239 * dummy empty line will be inserted */ | |
2240 if (curbuf->b_ml.ml_line_count == 1) | |
2241 empty_buffer = TRUE; | |
2242 ml_delete(lnum, FALSE); | |
2243 } | |
2244 } | |
414 | 2245 else |
2246 newarray = NULL; | |
7 | 2247 |
2248 /* insert the lines in u_array between top and bot */ | |
2249 if (newsize) | |
2250 { | |
2251 for (lnum = top, i = 0; i < newsize; ++i, ++lnum) | |
2252 { | |
2253 /* | |
2254 * If the file is empty, there is an empty line 1 that we | |
2255 * should get rid of, by replacing it with the new line | |
2256 */ | |
2257 if (empty_buffer && lnum == 0) | |
2258 ml_replace((linenr_T)1, uep->ue_array[i], TRUE); | |
2259 else | |
2260 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE); | |
2230
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2261 vim_free(uep->ue_array[i]); |
7 | 2262 } |
2230
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|
2263 vim_free((char_u *)uep->ue_array); |
7 | 2264 } |
2265 | |
2266 /* adjust marks */ | |
2267 if (oldsize != newsize) | |
2268 { | |
2269 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM, | |
2270 (long)newsize - (long)oldsize); | |
2271 if (curbuf->b_op_start.lnum > top + oldsize) | |
2272 curbuf->b_op_start.lnum += newsize - oldsize; | |
2273 if (curbuf->b_op_end.lnum > top + oldsize) | |
2274 curbuf->b_op_end.lnum += newsize - oldsize; | |
2275 } | |
2276 | |
2277 changed_lines(top + 1, 0, bot, newsize - oldsize); | |
2278 | |
2279 /* set '[ and '] mark */ | |
2280 if (top + 1 < curbuf->b_op_start.lnum) | |
2281 curbuf->b_op_start.lnum = top + 1; | |
2282 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) | |
2283 curbuf->b_op_end.lnum = top + 1; | |
2284 else if (top + newsize > curbuf->b_op_end.lnum) | |
2285 curbuf->b_op_end.lnum = top + newsize; | |
2286 | |
2287 u_newcount += newsize; | |
2288 u_oldcount += oldsize; | |
2289 uep->ue_size = oldsize; | |
2290 uep->ue_array = newarray; | |
2291 uep->ue_bot = top + newsize + 1; | |
2292 | |
2293 /* | |
2294 * insert this entry in front of the new entry list | |
2295 */ | |
2296 nuep = uep->ue_next; | |
2297 uep->ue_next = newlist; | |
2298 newlist = uep; | |
2299 } | |
2300 | |
758 | 2301 curhead->uh_entry = newlist; |
2302 curhead->uh_flags = new_flags; | |
7 | 2303 if ((old_flags & UH_EMPTYBUF) && bufempty()) |
2304 curbuf->b_ml.ml_flags |= ML_EMPTY; | |
2305 if (old_flags & UH_CHANGED) | |
2306 changed(); | |
2307 else | |
33 | 2308 #ifdef FEAT_NETBEANS_INTG |
2309 /* per netbeans undo rules, keep it as modified */ | |
2310 if (!isNetbeansModified(curbuf)) | |
2311 #endif | |
7 | 2312 unchanged(curbuf, FALSE); |
2313 | |
2314 /* | |
2315 * restore marks from before undo/redo | |
2316 */ | |
2317 for (i = 0; i < NMARKS; ++i) | |
758 | 2318 if (curhead->uh_namedm[i].lnum != 0) |
7 | 2319 { |
758 | 2320 curbuf->b_namedm[i] = curhead->uh_namedm[i]; |
2321 curhead->uh_namedm[i] = namedm[i]; | |
7 | 2322 } |
692 | 2323 #ifdef FEAT_VISUAL |
758 | 2324 if (curhead->uh_visual.vi_start.lnum != 0) |
692 | 2325 { |
758 | 2326 curbuf->b_visual = curhead->uh_visual; |
2327 curhead->uh_visual = visualinfo; | |
692 | 2328 } |
2329 #endif | |
7 | 2330 |
2331 /* | |
2332 * If the cursor is only off by one line, put it at the same position as | |
2333 * before starting the change (for the "o" command). | |
2334 * Otherwise the cursor should go to the first undone line. | |
2335 */ | |
758 | 2336 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum |
7 | 2337 && curwin->w_cursor.lnum > 1) |
2338 --curwin->w_cursor.lnum; | |
758 | 2339 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum) |
7 | 2340 { |
758 | 2341 curwin->w_cursor.col = curhead->uh_cursor.col; |
7 | 2342 #ifdef FEAT_VIRTUALEDIT |
758 | 2343 if (virtual_active() && curhead->uh_cursor_vcol >= 0) |
2344 coladvance((colnr_T)curhead->uh_cursor_vcol); | |
7 | 2345 else |
2346 curwin->w_cursor.coladd = 0; | |
2347 #endif | |
2348 } | |
2349 else if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count) | |
2350 beginline(BL_SOL | BL_FIX); | |
2351 else | |
2352 { | |
2353 /* We get here with the current cursor line being past the end (eg | |
2354 * after adding lines at the end of the file, and then undoing it). | |
2355 * check_cursor() will move the cursor to the last line. Move it to | |
2356 * the first column here. */ | |
2357 curwin->w_cursor.col = 0; | |
2358 #ifdef FEAT_VIRTUALEDIT | |
2359 curwin->w_cursor.coladd = 0; | |
2360 #endif | |
2361 } | |
2362 | |
2363 /* Make sure the cursor is on an existing line and column. */ | |
2364 check_cursor(); | |
758 | 2365 |
2366 /* Remember where we are for "g-" and ":earlier 10s". */ | |
2367 curbuf->b_u_seq_cur = curhead->uh_seq; | |
777 | 2368 if (undo) |
2369 /* We are below the previous undo. However, to make ":earlier 1s" | |
2370 * work we compute this as being just above the just undone change. */ | |
2371 --curbuf->b_u_seq_cur; | |
2372 | |
2373 /* The timestamp can be the same for multiple changes, just use the one of | |
2374 * the undone/redone change. */ | |
758 | 2375 curbuf->b_u_seq_time = curhead->uh_time; |
1415 | 2376 #ifdef U_DEBUG |
2377 u_check(FALSE); | |
2378 #endif | |
7 | 2379 } |
2380 | |
2381 /* | |
2382 * If we deleted or added lines, report the number of less/more lines. | |
2383 * Otherwise, report the number of changes (this may be incorrect | |
2384 * in some cases, but it's better than nothing). | |
2385 */ | |
2386 static void | |
798 | 2387 u_undo_end(did_undo, absolute) |
794 | 2388 int did_undo; /* just did an undo */ |
798 | 2389 int absolute; /* used ":undo N" */ |
7 | 2390 { |
944 | 2391 char *msgstr; |
772 | 2392 u_header_T *uhp; |
2393 char_u msgbuf[80]; | |
753 | 2394 |
7 | 2395 #ifdef FEAT_FOLDING |
2396 if ((fdo_flags & FDO_UNDO) && KeyTyped) | |
2397 foldOpenCursor(); | |
2398 #endif | |
753 | 2399 |
2400 if (global_busy /* no messages now, wait until global is finished */ | |
2401 || !messaging()) /* 'lazyredraw' set, don't do messages now */ | |
2402 return; | |
2403 | |
2404 if (curbuf->b_ml.ml_flags & ML_EMPTY) | |
2405 --u_newcount; | |
2406 | |
2407 u_oldcount -= u_newcount; | |
2408 if (u_oldcount == -1) | |
944 | 2409 msgstr = N_("more line"); |
753 | 2410 else if (u_oldcount < 0) |
944 | 2411 msgstr = N_("more lines"); |
753 | 2412 else if (u_oldcount == 1) |
944 | 2413 msgstr = N_("line less"); |
753 | 2414 else if (u_oldcount > 1) |
944 | 2415 msgstr = N_("fewer lines"); |
753 | 2416 else |
2417 { | |
2418 u_oldcount = u_newcount; | |
2419 if (u_newcount == 1) | |
944 | 2420 msgstr = N_("change"); |
753 | 2421 else |
944 | 2422 msgstr = N_("changes"); |
753 | 2423 } |
2424 | |
772 | 2425 if (curbuf->b_u_curhead != NULL) |
794 | 2426 { |
798 | 2427 /* For ":undo N" we prefer a "after #N" message. */ |
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diff
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|
2428 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL) |
798 | 2429 { |
2242
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diff
changeset
|
2430 uhp = curbuf->b_u_curhead->uh_next.ptr; |
798 | 2431 did_undo = FALSE; |
2432 } | |
2433 else if (did_undo) | |
794 | 2434 uhp = curbuf->b_u_curhead; |
2435 else | |
2242
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|
2436 uhp = curbuf->b_u_curhead->uh_next.ptr; |
794 | 2437 } |
753 | 2438 else |
772 | 2439 uhp = curbuf->b_u_newhead; |
753 | 2440 |
772 | 2441 if (uhp == NULL) |
2442 *msgbuf = NUL; | |
2443 else | |
2444 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time); | |
2445 | |
794 | 2446 smsg((char_u *)_("%ld %s; %s #%ld %s"), |
777 | 2447 u_oldcount < 0 ? -u_oldcount : u_oldcount, |
944 | 2448 _(msgstr), |
794 | 2449 did_undo ? _("before") : _("after"), |
2450 uhp == NULL ? 0L : uhp->uh_seq, | |
2451 msgbuf); | |
7 | 2452 } |
2453 | |
2454 /* | |
2455 * u_sync: stop adding to the current entry list | |
2456 */ | |
2457 void | |
825 | 2458 u_sync(force) |
2459 int force; /* Also sync when no_u_sync is set. */ | |
7 | 2460 { |
825 | 2461 /* Skip it when already synced or syncing is disabled. */ |
2462 if (curbuf->b_u_synced || (!force && no_u_sync > 0)) | |
2463 return; | |
7 | 2464 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) |
2465 if (im_is_preediting()) | |
2466 return; /* XIM is busy, don't break an undo sequence */ | |
2467 #endif | |
2468 if (p_ul < 0) | |
2469 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */ | |
2470 else | |
2471 { | |
2472 u_getbot(); /* compute ue_bot of previous u_save */ | |
2473 curbuf->b_u_curhead = NULL; | |
2474 } | |
2475 } | |
2476 | |
2477 /* | |
772 | 2478 * ":undolist": List the leafs of the undo tree |
2479 */ | |
2480 void | |
2481 ex_undolist(eap) | |
2154
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diff
changeset
|
2482 exarg_T *eap UNUSED; |
772 | 2483 { |
2484 garray_T ga; | |
2485 u_header_T *uhp; | |
2486 int mark; | |
2487 int nomark; | |
2488 int changes = 1; | |
2489 int i; | |
2490 | |
2491 /* | |
2492 * 1: walk the tree to find all leafs, put the info in "ga". | |
2493 * 2: sort the lines | |
2494 * 3: display the list | |
2495 */ | |
2496 mark = ++lastmark; | |
2497 nomark = ++lastmark; | |
2498 ga_init2(&ga, (int)sizeof(char *), 20); | |
2499 | |
2500 uhp = curbuf->b_u_oldhead; | |
2501 while (uhp != NULL) | |
2502 { | |
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2503 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark |
777 | 2504 && uhp->uh_walk != mark) |
772 | 2505 { |
2506 if (ga_grow(&ga, 1) == FAIL) | |
2507 break; | |
2508 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ", | |
2509 uhp->uh_seq, changes); | |
2510 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff), | |
2511 uhp->uh_time); | |
2512 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff); | |
2513 } | |
2514 | |
2515 uhp->uh_walk = mark; | |
2516 | |
2517 /* go down in the tree if we haven't been there */ | |
2242
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|
2518 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
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|
2519 && uhp->uh_prev.ptr->uh_walk != mark) |
772 | 2520 { |
2242
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diff
changeset
|
2521 uhp = uhp->uh_prev.ptr; |
772 | 2522 ++changes; |
2523 } | |
2524 | |
2525 /* go to alternate branch if we haven't been there */ | |
2242
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|
2526 else if (uhp->uh_alt_next.ptr != NULL |
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diff
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|
2527 && uhp->uh_alt_next.ptr->uh_walk != nomark |
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changeset
|
2528 && uhp->uh_alt_next.ptr->uh_walk != mark) |
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diff
changeset
|
2529 uhp = uhp->uh_alt_next.ptr; |
772 | 2530 |
2531 /* go up in the tree if we haven't been there and we are at the | |
2532 * start of alternate branches */ | |
2242
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|
2533 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
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diff
changeset
|
2534 && uhp->uh_next.ptr->uh_walk != nomark |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2535 && uhp->uh_next.ptr->uh_walk != mark) |
772 | 2536 { |
2242
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parents:
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diff
changeset
|
2537 uhp = uhp->uh_next.ptr; |
772 | 2538 --changes; |
2539 } | |
2540 | |
2541 else | |
2542 { | |
2543 /* need to backtrack; mark this node as done */ | |
2544 uhp->uh_walk = nomark; | |
2242
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diff
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|
2545 if (uhp->uh_alt_prev.ptr != NULL) |
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Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2546 uhp = uhp->uh_alt_prev.ptr; |
772 | 2547 else |
2548 { | |
2242
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diff
changeset
|
2549 uhp = uhp->uh_next.ptr; |
772 | 2550 --changes; |
2551 } | |
2552 } | |
2553 } | |
2554 | |
2555 if (ga.ga_len == 0) | |
2556 MSG(_("Nothing to undo")); | |
2557 else | |
2558 { | |
2559 sort_strings((char_u **)ga.ga_data, ga.ga_len); | |
2560 | |
2561 msg_start(); | |
2562 msg_puts_attr((char_u *)_("number changes time"), hl_attr(HLF_T)); | |
2563 for (i = 0; i < ga.ga_len && !got_int; ++i) | |
2564 { | |
2565 msg_putchar('\n'); | |
2566 if (got_int) | |
2567 break; | |
2568 msg_puts(((char_u **)ga.ga_data)[i]); | |
2569 } | |
2570 msg_end(); | |
2571 | |
2572 ga_clear_strings(&ga); | |
2573 } | |
2574 } | |
2575 | |
2576 /* | |
2577 * Put the timestamp of an undo header in "buf[buflen]" in a nice format. | |
2578 */ | |
2579 static void | |
2580 u_add_time(buf, buflen, tt) | |
2581 char_u *buf; | |
2582 size_t buflen; | |
2583 time_t tt; | |
2584 { | |
2585 #ifdef HAVE_STRFTIME | |
2586 struct tm *curtime; | |
2587 | |
2588 if (time(NULL) - tt >= 100) | |
2589 { | |
2590 curtime = localtime(&tt); | |
810 | 2591 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime); |
772 | 2592 } |
2593 else | |
2594 #endif | |
835 | 2595 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"), |
772 | 2596 (long)(time(NULL) - tt)); |
2597 } | |
2598 | |
2599 /* | |
697 | 2600 * ":undojoin": continue adding to the last entry list |
2601 */ | |
2602 void | |
2603 ex_undojoin(eap) | |
2154
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diff
changeset
|
2604 exarg_T *eap UNUSED; |
697 | 2605 { |
839 | 2606 if (curbuf->b_u_newhead == NULL) |
2607 return; /* nothing changed before */ | |
2608 if (curbuf->b_u_curhead != NULL) | |
2609 { | |
2610 EMSG(_("E790: undojoin is not allowed after undo")); | |
2611 return; | |
2612 } | |
697 | 2613 if (!curbuf->b_u_synced) |
2614 return; /* already unsynced */ | |
2615 if (p_ul < 0) | |
2616 return; /* no entries, nothing to do */ | |
2617 else | |
2618 { | |
2619 /* Go back to the last entry */ | |
2620 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
2621 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */ | |
2622 } | |
2623 } | |
2624 | |
2625 /* | |
7 | 2626 * Called after writing the file and setting b_changed to FALSE. |
2627 * Now an undo means that the buffer is modified. | |
2628 */ | |
2629 void | |
2630 u_unchanged(buf) | |
2631 buf_T *buf; | |
2632 { | |
758 | 2633 u_unch_branch(buf->b_u_oldhead); |
2634 buf->b_did_warn = FALSE; | |
2635 } | |
2636 | |
2637 static void | |
2638 u_unch_branch(uhp) | |
2639 u_header_T *uhp; | |
2640 { | |
753 | 2641 u_header_T *uh; |
7 | 2642 |
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diff
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|
2643 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr) |
758 | 2644 { |
7 | 2645 uh->uh_flags |= UH_CHANGED; |
2242
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|
2646 if (uh->uh_alt_next.ptr != NULL) |
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diff
changeset
|
2647 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */ |
758 | 2648 } |
7 | 2649 } |
2650 | |
2651 /* | |
2652 * Get pointer to last added entry. | |
2653 * If it's not valid, give an error message and return NULL. | |
2654 */ | |
2655 static u_entry_T * | |
2656 u_get_headentry() | |
2657 { | |
2658 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL) | |
2659 { | |
2660 EMSG(_("E439: undo list corrupt")); | |
2661 return NULL; | |
2662 } | |
2663 return curbuf->b_u_newhead->uh_entry; | |
2664 } | |
2665 | |
2666 /* | |
2667 * u_getbot(): compute the line number of the previous u_save | |
2668 * It is called only when b_u_synced is FALSE. | |
2669 */ | |
2670 static void | |
2671 u_getbot() | |
2672 { | |
2673 u_entry_T *uep; | |
2674 linenr_T extra; | |
2675 | |
2676 uep = u_get_headentry(); /* check for corrupt undo list */ | |
2677 if (uep == NULL) | |
2678 return; | |
2679 | |
2680 uep = curbuf->b_u_newhead->uh_getbot_entry; | |
2681 if (uep != NULL) | |
2682 { | |
2683 /* | |
2684 * the new ue_bot is computed from the number of lines that has been | |
2685 * inserted (0 - deleted) since calling u_save. This is equal to the | |
2686 * old line count subtracted from the current line count. | |
2687 */ | |
2688 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount; | |
2689 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra; | |
2690 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count) | |
2691 { | |
2692 EMSG(_("E440: undo line missing")); | |
2693 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will | |
2694 * get all the old lines back | |
2695 * without deleting the current | |
2696 * ones */ | |
2697 } | |
2698 | |
2699 curbuf->b_u_newhead->uh_getbot_entry = NULL; | |
2700 } | |
2701 | |
2702 curbuf->b_u_synced = TRUE; | |
2703 } | |
2704 | |
2705 /* | |
1415 | 2706 * Free one header "uhp" and its entry list and adjust the pointers. |
7 | 2707 */ |
2708 static void | |
758 | 2709 u_freeheader(buf, uhp, uhpp) |
168 | 2710 buf_T *buf; |
753 | 2711 u_header_T *uhp; |
2712 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
7 | 2713 { |
1415 | 2714 u_header_T *uhap; |
2715 | |
753 | 2716 /* When there is an alternate redo list free that branch completely, |
2717 * because we can never go there. */ | |
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|
2718 if (uhp->uh_alt_next.ptr != NULL) |
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diff
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|
2719 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp); |
7 | 2720 |
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diff
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|
2721 if (uhp->uh_alt_prev.ptr != NULL) |
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diff
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|
2722 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
7 | 2723 |
753 | 2724 /* Update the links in the list to remove the header. */ |
2242
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2725 if (uhp->uh_next.ptr == NULL) |
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diff
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|
2726 buf->b_u_oldhead = uhp->uh_prev.ptr; |
7 | 2727 else |
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diff
changeset
|
2728 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr; |
7 | 2729 |
2242
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diff
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|
2730 if (uhp->uh_prev.ptr == NULL) |
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2731 buf->b_u_newhead = uhp->uh_next.ptr; |
7 | 2732 else |
2242
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2733 for (uhap = uhp->uh_prev.ptr; uhap != NULL; |
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parents:
2239
diff
changeset
|
2734 uhap = uhap->uh_alt_next.ptr) |
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parents:
2239
diff
changeset
|
2735 uhap->uh_next.ptr = uhp->uh_next.ptr; |
7 | 2736 |
753 | 2737 u_freeentries(buf, uhp, uhpp); |
2738 } | |
2739 | |
2740 /* | |
758 | 2741 * Free an alternate branch and any following alternate branches. |
753 | 2742 */ |
2743 static void | |
2744 u_freebranch(buf, uhp, uhpp) | |
2745 buf_T *buf; | |
2746 u_header_T *uhp; | |
2747 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
2748 { | |
2749 u_header_T *tofree, *next; | |
2750 | |
1440 | 2751 /* If this is the top branch we may need to use u_freeheader() to update |
2752 * all the pointers. */ | |
2753 if (uhp == buf->b_u_oldhead) | |
2754 { | |
2755 u_freeheader(buf, uhp, uhpp); | |
2756 return; | |
2757 } | |
2758 | |
2242
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Bram Moolenaar <bram@vim.org>
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diff
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|
2759 if (uhp->uh_alt_prev.ptr != NULL) |
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parents:
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diff
changeset
|
2760 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
753 | 2761 |
2762 next = uhp; | |
2763 while (next != NULL) | |
2764 { | |
2765 tofree = next; | |
2242
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2766 if (tofree->uh_alt_next.ptr != NULL) |
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parents:
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diff
changeset
|
2767 u_freebranch(buf, tofree->uh_alt_next.ptr, uhpp); /* recursive */ |
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changeset
|
2768 next = tofree->uh_prev.ptr; |
753 | 2769 u_freeentries(buf, tofree, uhpp); |
2770 } | |
2771 } | |
2772 | |
2773 /* | |
2774 * Free all the undo entries for one header and the header itself. | |
2775 * This means that "uhp" is invalid when returning. | |
2776 */ | |
2777 static void | |
2778 u_freeentries(buf, uhp, uhpp) | |
2779 buf_T *buf; | |
2780 u_header_T *uhp; | |
2781 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
2782 { | |
2783 u_entry_T *uep, *nuep; | |
2784 | |
2785 /* Check for pointers to the header that become invalid now. */ | |
2786 if (buf->b_u_curhead == uhp) | |
2787 buf->b_u_curhead = NULL; | |
1415 | 2788 if (buf->b_u_newhead == uhp) |
2789 buf->b_u_newhead = NULL; /* freeing the newest entry */ | |
753 | 2790 if (uhpp != NULL && uhp == *uhpp) |
2791 *uhpp = NULL; | |
2792 | |
2793 for (uep = uhp->uh_entry; uep != NULL; uep = nuep) | |
2794 { | |
2795 nuep = uep->ue_next; | |
2796 u_freeentry(uep, uep->ue_size); | |
2797 } | |
2798 | |
1415 | 2799 #ifdef U_DEBUG |
2800 uhp->uh_magic = 0; | |
2801 #endif | |
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Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2802 vim_free((char_u *)uhp); |
168 | 2803 --buf->b_u_numhead; |
7 | 2804 } |
2805 | |
2806 /* | |
2807 * free entry 'uep' and 'n' lines in uep->ue_array[] | |
2808 */ | |
2809 static void | |
2810 u_freeentry(uep, n) | |
2811 u_entry_T *uep; | |
2812 long n; | |
2813 { | |
414 | 2814 while (n > 0) |
2230
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Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2815 vim_free(uep->ue_array[--n]); |
290ee42cae85
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2816 vim_free((char_u *)uep->ue_array); |
1415 | 2817 #ifdef U_DEBUG |
2818 uep->ue_magic = 0; | |
2819 #endif | |
2230
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2820 vim_free((char_u *)uep); |
7 | 2821 } |
2822 | |
2823 /* | |
2824 * invalidate the undo buffer; called when storage has already been released | |
2825 */ | |
2826 void | |
2827 u_clearall(buf) | |
2828 buf_T *buf; | |
2829 { | |
2830 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL; | |
2831 buf->b_u_synced = TRUE; | |
2832 buf->b_u_numhead = 0; | |
2833 buf->b_u_line_ptr = NULL; | |
2834 buf->b_u_line_lnum = 0; | |
2835 } | |
2836 | |
2837 /* | |
2838 * save the line "lnum" for the "U" command | |
2839 */ | |
2840 void | |
2841 u_saveline(lnum) | |
2842 linenr_T lnum; | |
2843 { | |
2844 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */ | |
2845 return; | |
356 | 2846 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */ |
7 | 2847 return; |
2848 u_clearline(); | |
2849 curbuf->b_u_line_lnum = lnum; | |
2850 if (curwin->w_cursor.lnum == lnum) | |
2851 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
2852 else | |
2853 curbuf->b_u_line_colnr = 0; | |
2854 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL) | |
2855 do_outofmem_msg((long_u)0); | |
2856 } | |
2857 | |
2858 /* | |
2859 * clear the line saved for the "U" command | |
2860 * (this is used externally for crossing a line while in insert mode) | |
2861 */ | |
2862 void | |
2863 u_clearline() | |
2864 { | |
2865 if (curbuf->b_u_line_ptr != NULL) | |
2866 { | |
2230
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Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2867 vim_free(curbuf->b_u_line_ptr); |
7 | 2868 curbuf->b_u_line_ptr = NULL; |
2869 curbuf->b_u_line_lnum = 0; | |
2870 } | |
2871 } | |
2872 | |
2873 /* | |
2874 * Implementation of the "U" command. | |
2875 * Differentiation from vi: "U" can be undone with the next "U". | |
2876 * We also allow the cursor to be in another line. | |
2877 */ | |
2878 void | |
2879 u_undoline() | |
2880 { | |
2881 colnr_T t; | |
2882 char_u *oldp; | |
2883 | |
2884 if (undo_off) | |
2885 return; | |
2886 | |
1534 | 2887 if (curbuf->b_u_line_ptr == NULL |
2888 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count) | |
7 | 2889 { |
2890 beep_flush(); | |
2891 return; | |
2892 } | |
1534 | 2893 |
2894 /* first save the line for the 'u' command */ | |
7 | 2895 if (u_savecommon(curbuf->b_u_line_lnum - 1, |
2896 curbuf->b_u_line_lnum + 1, (linenr_T)0) == FAIL) | |
2897 return; | |
2898 oldp = u_save_line(curbuf->b_u_line_lnum); | |
2899 if (oldp == NULL) | |
2900 { | |
2901 do_outofmem_msg((long_u)0); | |
2902 return; | |
2903 } | |
2904 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE); | |
2905 changed_bytes(curbuf->b_u_line_lnum, 0); | |
2230
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diff
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|
2906 vim_free(curbuf->b_u_line_ptr); |
7 | 2907 curbuf->b_u_line_ptr = oldp; |
2908 | |
2909 t = curbuf->b_u_line_colnr; | |
2910 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum) | |
2911 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
2912 curwin->w_cursor.col = t; | |
2913 curwin->w_cursor.lnum = curbuf->b_u_line_lnum; | |
1534 | 2914 check_cursor_col(); |
7 | 2915 } |
2916 | |
2917 /* | |
168 | 2918 * Free all allocated memory blocks for the buffer 'buf'. |
2919 */ | |
2920 void | |
2921 u_blockfree(buf) | |
2922 buf_T *buf; | |
2923 { | |
753 | 2924 while (buf->b_u_oldhead != NULL) |
758 | 2925 u_freeheader(buf, buf->b_u_oldhead, NULL); |
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diff
changeset
|
2926 vim_free(buf->b_u_line_ptr); |
7 | 2927 } |
2928 | |
2929 /* | |
2230
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|
2930 * u_save_line(): allocate memory and copy line 'lnum' into it. |
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diff
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|
2931 * Returns NULL when out of memory. |
7 | 2932 */ |
2933 static char_u * | |
2934 u_save_line(lnum) | |
2935 linenr_T lnum; | |
2936 { | |
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|
2937 return vim_strsave(ml_get(lnum)); |
7 | 2938 } |
2939 | |
2940 /* | |
2941 * Check if the 'modified' flag is set, or 'ff' has changed (only need to | |
2942 * check the first character, because it can only be "dos", "unix" or "mac"). | |
2943 * "nofile" and "scratch" type buffers are considered to always be unchanged. | |
2944 */ | |
2945 int | |
2946 bufIsChanged(buf) | |
2947 buf_T *buf; | |
2948 { | |
2949 return | |
2950 #ifdef FEAT_QUICKFIX | |
2951 !bt_dontwrite(buf) && | |
2952 #endif | |
2953 (buf->b_changed || file_ff_differs(buf)); | |
2954 } | |
2955 | |
2956 int | |
2957 curbufIsChanged() | |
2958 { | |
2959 return | |
2960 #ifdef FEAT_QUICKFIX | |
2961 !bt_dontwrite(curbuf) && | |
2962 #endif | |
2963 (curbuf->b_changed || file_ff_differs(curbuf)); | |
2964 } |