Mercurial > vim
annotate src/undo.c @ 2342:f6540762173d vim73
Fixes and improvements for MS-Windows build.
author | Bram Moolenaar <bram@vim.org> |
---|---|
date | Sun, 18 Jul 2010 21:42:34 +0200 |
parents | ccda151dde4e |
children | 8878a9f8db87 |
rev | line source |
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7 | 1 /* vi:set ts=8 sts=4 sw=4: |
2 * | |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 | |
10 /* | |
11 * undo.c: multi level undo facility | |
12 * | |
13 * The saved lines are stored in a list of lists (one for each buffer): | |
14 * | |
15 * b_u_oldhead------------------------------------------------+ | |
16 * | | |
17 * V | |
18 * +--------------+ +--------------+ +--------------+ | |
19 * b_u_newhead--->| u_header | | u_header | | u_header | | |
20 * | uh_next------>| uh_next------>| uh_next---->NULL | |
21 * NULL<--------uh_prev |<---------uh_prev |<---------uh_prev | | |
22 * | uh_entry | | uh_entry | | uh_entry | | |
23 * +--------|-----+ +--------|-----+ +--------|-----+ | |
24 * | | | | |
25 * V V V | |
26 * +--------------+ +--------------+ +--------------+ | |
27 * | u_entry | | u_entry | | u_entry | | |
28 * | ue_next | | ue_next | | ue_next | | |
29 * +--------|-----+ +--------|-----+ +--------|-----+ | |
30 * | | | | |
31 * V V V | |
32 * +--------------+ NULL NULL | |
33 * | u_entry | | |
34 * | ue_next | | |
35 * +--------|-----+ | |
36 * | | |
37 * V | |
38 * etc. | |
39 * | |
40 * Each u_entry list contains the information for one undo or redo. | |
41 * curbuf->b_u_curhead points to the header of the last undo (the next redo), | |
758 | 42 * or is NULL if nothing has been undone (end of the branch). |
7 | 43 * |
753 | 44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at |
45 * each point in the list a branch may appear for an alternate to redo. The | |
46 * uh_seq field is numbered sequentially to be able to find a newer or older | |
47 * branch. | |
48 * | |
758 | 49 * +---------------+ +---------------+ |
50 * b_u_oldhead --->| u_header | | u_header | | |
51 * | uh_alt_next ---->| uh_alt_next ----> NULL | |
52 * NULL <----- uh_alt_prev |<------ uh_alt_prev | | |
53 * | uh_prev | | uh_prev | | |
54 * +-----|---------+ +-----|---------+ | |
55 * | | | |
56 * V V | |
57 * +---------------+ +---------------+ | |
58 * | u_header | | u_header | | |
59 * | uh_alt_next | | uh_alt_next | | |
60 * b_u_newhead --->| uh_alt_prev | | uh_alt_prev | | |
61 * | uh_prev | | uh_prev | | |
62 * +-----|---------+ +-----|---------+ | |
63 * | | | |
64 * V V | |
65 * NULL +---------------+ +---------------+ | |
66 * | u_header | | u_header | | |
67 * | uh_alt_next ---->| uh_alt_next | | |
68 * | uh_alt_prev |<------ uh_alt_prev | | |
69 * | uh_prev | | uh_prev | | |
70 * +-----|---------+ +-----|---------+ | |
71 * | | | |
72 * etc. etc. | |
73 * | |
74 * | |
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75 * All data is allocated and will all be freed when the buffer is unloaded. |
7 | 76 */ |
77 | |
1415 | 78 /* Uncomment the next line for including the u_check() function. This warns |
79 * for errors in the debug information. */ | |
80 /* #define U_DEBUG 1 */ | |
81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */ | |
82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */ | |
83 | |
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84 #if defined(MSDOS) || defined(WIN16) || defined(WIN32) || defined(_WIN64) |
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85 # include "vimio.h" /* for vim_read(), must be before vim.h */ |
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86 #endif |
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87 |
7 | 88 #include "vim.h" |
89 | |
758 | 90 static void u_unch_branch __ARGS((u_header_T *uhp)); |
7 | 91 static u_entry_T *u_get_headentry __ARGS((void)); |
92 static void u_getbot __ARGS((void)); | |
93 static int u_savecommon __ARGS((linenr_T, linenr_T, linenr_T)); | |
94 static void u_doit __ARGS((int count)); | |
777 | 95 static void u_undoredo __ARGS((int undo)); |
798 | 96 static void u_undo_end __ARGS((int did_undo, int absolute)); |
772 | 97 static void u_add_time __ARGS((char_u *buf, size_t buflen, time_t tt)); |
758 | 98 static void u_freeheader __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
753 | 99 static void u_freebranch __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
100 static void u_freeentries __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); | |
7 | 101 static void u_freeentry __ARGS((u_entry_T *, long)); |
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102 #ifdef FEAT_PERSISTENT_UNDO |
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103 static void corruption_error __ARGS((char *mesg, char_u *file_name)); |
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104 static void u_free_uhp __ARGS((u_header_T *uhp)); |
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105 static size_t fwrite_crypt __ARGS((buf_T *buf UNUSED, char_u *ptr, size_t len, FILE *fp)); |
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106 static char_u *read_string_decrypt __ARGS((buf_T *buf UNUSED, FILE *fd, int len)); |
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107 static int serialize_header __ARGS((FILE *fp, buf_T *buf, char_u *hash)); |
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108 static int serialize_uhp __ARGS((FILE *fp, buf_T *buf, u_header_T *uhp)); |
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109 static u_header_T *unserialize_uhp __ARGS((FILE *fp, char_u *file_name)); |
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110 static int serialize_uep __ARGS((FILE *fp, buf_T *buf, u_entry_T *uep)); |
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111 static u_entry_T *unserialize_uep __ARGS((FILE *fp, int *error, char_u *file_name)); |
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112 static void serialize_pos __ARGS((pos_T pos, FILE *fp)); |
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113 static void unserialize_pos __ARGS((pos_T *pos, FILE *fp)); |
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114 static void serialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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115 static void unserialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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116 static void put_header_ptr __ARGS((FILE *fp, u_header_T *uhp)); |
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117 #endif |
7 | 118 |
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119 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE) |
7 | 120 static char_u *u_save_line __ARGS((linenr_T)); |
121 | |
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122 /* used in undo_end() to report number of added and deleted lines */ |
7 | 123 static long u_newcount, u_oldcount; |
124 | |
125 /* | |
126 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember | |
127 * the action that "u" should do. | |
128 */ | |
129 static int undo_undoes = FALSE; | |
130 | |
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131 static int lastmark = 0; |
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132 |
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133 #if defined(U_DEBUG) || defined(PROTO) |
1415 | 134 /* |
135 * Check the undo structures for being valid. Print a warning when something | |
136 * looks wrong. | |
137 */ | |
138 static int seen_b_u_curhead; | |
139 static int seen_b_u_newhead; | |
140 static int header_count; | |
141 | |
142 static void | |
143 u_check_tree(u_header_T *uhp, | |
144 u_header_T *exp_uh_next, | |
145 u_header_T *exp_uh_alt_prev) | |
146 { | |
147 u_entry_T *uep; | |
148 | |
149 if (uhp == NULL) | |
150 return; | |
151 ++header_count; | |
152 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1) | |
153 { | |
154 EMSG("b_u_curhead found twice (looping?)"); | |
155 return; | |
156 } | |
157 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1) | |
158 { | |
159 EMSG("b_u_newhead found twice (looping?)"); | |
160 return; | |
161 } | |
162 | |
163 if (uhp->uh_magic != UH_MAGIC) | |
164 EMSG("uh_magic wrong (may be using freed memory)"); | |
165 else | |
166 { | |
167 /* Check pointers back are correct. */ | |
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168 if (uhp->uh_next.ptr != exp_uh_next) |
1415 | 169 { |
170 EMSG("uh_next wrong"); | |
171 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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172 exp_uh_next, uhp->uh_next.ptr); |
1415 | 173 } |
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174 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev) |
1415 | 175 { |
176 EMSG("uh_alt_prev wrong"); | |
177 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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178 exp_uh_alt_prev, uhp->uh_alt_prev.ptr); |
1415 | 179 } |
180 | |
181 /* Check the undo tree at this header. */ | |
182 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) | |
183 { | |
184 if (uep->ue_magic != UE_MAGIC) | |
185 { | |
186 EMSG("ue_magic wrong (may be using freed memory)"); | |
187 break; | |
188 } | |
189 } | |
190 | |
191 /* Check the next alt tree. */ | |
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192 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp); |
1415 | 193 |
194 /* Check the next header in this branch. */ | |
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195 u_check_tree(uhp->uh_prev.ptr, uhp, NULL); |
1415 | 196 } |
197 } | |
198 | |
2288 | 199 static void |
1415 | 200 u_check(int newhead_may_be_NULL) |
201 { | |
202 seen_b_u_newhead = 0; | |
203 seen_b_u_curhead = 0; | |
204 header_count = 0; | |
205 | |
206 u_check_tree(curbuf->b_u_oldhead, NULL, NULL); | |
207 | |
208 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL | |
209 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL)) | |
210 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead); | |
211 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0) | |
212 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead); | |
213 if (header_count != curbuf->b_u_numhead) | |
214 { | |
215 EMSG("b_u_numhead invalid"); | |
216 smsg((char_u *)"expected: %ld, actual: %ld", | |
217 (long)header_count, (long)curbuf->b_u_numhead); | |
218 } | |
219 } | |
220 #endif | |
221 | |
7 | 222 /* |
344 | 223 * Save the current line for both the "u" and "U" command. |
224 * Returns OK or FAIL. | |
7 | 225 */ |
226 int | |
227 u_save_cursor() | |
228 { | |
229 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1), | |
230 (linenr_T)(curwin->w_cursor.lnum + 1))); | |
231 } | |
232 | |
233 /* | |
234 * Save the lines between "top" and "bot" for both the "u" and "U" command. | |
235 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1. | |
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236 * Careful: may trigger autocommands that reload the buffer. |
7 | 237 * Returns FAIL when lines could not be saved, OK otherwise. |
238 */ | |
239 int | |
240 u_save(top, bot) | |
241 linenr_T top, bot; | |
242 { | |
243 if (undo_off) | |
244 return OK; | |
245 | |
246 if (top > curbuf->b_ml.ml_line_count || | |
247 top >= bot || bot > curbuf->b_ml.ml_line_count + 1) | |
248 return FALSE; /* rely on caller to do error messages */ | |
249 | |
250 if (top + 2 == bot) | |
251 u_saveline((linenr_T)(top + 1)); | |
252 | |
253 return (u_savecommon(top, bot, (linenr_T)0)); | |
254 } | |
255 | |
256 /* | |
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257 * Save the line "lnum" (used by ":s" and "~" command). |
7 | 258 * The line is replaced, so the new bottom line is lnum + 1. |
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259 * Careful: may trigger autocommands that reload the buffer. |
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260 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 261 */ |
262 int | |
263 u_savesub(lnum) | |
264 linenr_T lnum; | |
265 { | |
266 if (undo_off) | |
267 return OK; | |
268 | |
269 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1)); | |
270 } | |
271 | |
272 /* | |
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273 * A new line is inserted before line "lnum" (used by :s command). |
7 | 274 * The line is inserted, so the new bottom line is lnum + 1. |
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275 * Careful: may trigger autocommands that reload the buffer. |
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276 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 277 */ |
278 int | |
279 u_inssub(lnum) | |
280 linenr_T lnum; | |
281 { | |
282 if (undo_off) | |
283 return OK; | |
284 | |
285 return (u_savecommon(lnum - 1, lnum, lnum + 1)); | |
286 } | |
287 | |
288 /* | |
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289 * Save the lines "lnum" - "lnum" + nlines (used by delete command). |
7 | 290 * The lines are deleted, so the new bottom line is lnum, unless the buffer |
291 * becomes empty. | |
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292 * Careful: may trigger autocommands that reload the buffer. |
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293 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 294 */ |
295 int | |
296 u_savedel(lnum, nlines) | |
297 linenr_T lnum; | |
298 long nlines; | |
299 { | |
300 if (undo_off) | |
301 return OK; | |
302 | |
303 return (u_savecommon(lnum - 1, lnum + nlines, | |
304 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum)); | |
305 } | |
306 | |
632 | 307 /* |
308 * Return TRUE when undo is allowed. Otherwise give an error message and | |
309 * return FALSE. | |
310 */ | |
912 | 311 int |
632 | 312 undo_allowed() |
313 { | |
314 /* Don't allow changes when 'modifiable' is off. */ | |
315 if (!curbuf->b_p_ma) | |
316 { | |
317 EMSG(_(e_modifiable)); | |
318 return FALSE; | |
319 } | |
320 | |
321 #ifdef HAVE_SANDBOX | |
322 /* In the sandbox it's not allowed to change the text. */ | |
323 if (sandbox != 0) | |
324 { | |
325 EMSG(_(e_sandbox)); | |
326 return FALSE; | |
327 } | |
328 #endif | |
329 | |
330 /* Don't allow changes in the buffer while editing the cmdline. The | |
331 * caller of getcmdline() may get confused. */ | |
634 | 332 if (textlock != 0) |
632 | 333 { |
334 EMSG(_(e_secure)); | |
335 return FALSE; | |
336 } | |
337 | |
338 return TRUE; | |
339 } | |
340 | |
2288 | 341 /* |
342 * Common code for various ways to save text before a change. | |
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343 * "top" is the line above the first changed line. |
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344 * "bot" is the line below the last changed line. |
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345 * Careful: may trigger autocommands that reload the buffer. |
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346 * Returns FAIL when lines could not be saved, OK otherwise. |
2288 | 347 */ |
7 | 348 static int |
349 u_savecommon(top, bot, newbot) | |
350 linenr_T top, bot; | |
351 linenr_T newbot; | |
352 { | |
753 | 353 linenr_T lnum; |
354 long i; | |
355 u_header_T *uhp; | |
356 u_header_T *old_curhead; | |
357 u_entry_T *uep; | |
358 u_entry_T *prev_uep; | |
359 long size; | |
7 | 360 |
632 | 361 /* When making changes is not allowed return FAIL. It's a crude way to |
362 * make all change commands fail. */ | |
363 if (!undo_allowed()) | |
7 | 364 return FAIL; |
365 | |
1415 | 366 #ifdef U_DEBUG |
367 u_check(FALSE); | |
368 #endif | |
7 | 369 #ifdef FEAT_NETBEANS_INTG |
370 /* | |
371 * Netbeans defines areas that cannot be modified. Bail out here when | |
372 * trying to change text in a guarded area. | |
373 */ | |
2210 | 374 if (netbeans_active()) |
7 | 375 { |
33 | 376 if (netbeans_is_guarded(top, bot)) |
377 { | |
378 EMSG(_(e_guarded)); | |
379 return FAIL; | |
380 } | |
381 if (curbuf->b_p_ro) | |
382 { | |
383 EMSG(_(e_nbreadonly)); | |
384 return FAIL; | |
385 } | |
7 | 386 } |
387 #endif | |
388 | |
389 #ifdef FEAT_AUTOCMD | |
390 /* | |
391 * Saving text for undo means we are going to make a change. Give a | |
392 * warning for a read-only file before making the change, so that the | |
393 * FileChangedRO event can replace the buffer with a read-write version | |
394 * (e.g., obtained from a source control system). | |
395 */ | |
396 change_warning(0); | |
2289
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397 if (bot > curbuf->b_ml.ml_line_count + 1) |
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398 { |
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399 /* This happens when the FileChangedRO autocommand changes the file in |
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400 * a way it becomes shorter. */ |
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401 EMSG(_("E834: Line count changed unexpectedly")); |
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402 return FAIL; |
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403 } |
7 | 404 #endif |
405 | |
406 size = bot - top - 1; | |
407 | |
408 /* | |
2288 | 409 * If curbuf->b_u_synced == TRUE make a new header. |
7 | 410 */ |
411 if (curbuf->b_u_synced) | |
412 { | |
413 #ifdef FEAT_JUMPLIST | |
414 /* Need to create new entry in b_changelist. */ | |
415 curbuf->b_new_change = TRUE; | |
416 #endif | |
417 | |
753 | 418 if (p_ul >= 0) |
419 { | |
420 /* | |
421 * Make a new header entry. Do this first so that we don't mess | |
422 * up the undo info when out of memory. | |
423 */ | |
2230
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424 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
753 | 425 if (uhp == NULL) |
426 goto nomem; | |
1415 | 427 #ifdef U_DEBUG |
428 uhp->uh_magic = UH_MAGIC; | |
429 #endif | |
753 | 430 } |
766 | 431 else |
432 uhp = NULL; | |
753 | 433 |
7 | 434 /* |
758 | 435 * If we undid more than we redid, move the entry lists before and |
436 * including curbuf->b_u_curhead to an alternate branch. | |
7 | 437 */ |
753 | 438 old_curhead = curbuf->b_u_curhead; |
439 if (old_curhead != NULL) | |
440 { | |
2242
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441 curbuf->b_u_newhead = old_curhead->uh_next.ptr; |
753 | 442 curbuf->b_u_curhead = NULL; |
443 } | |
7 | 444 |
445 /* | |
446 * free headers to keep the size right | |
447 */ | |
448 while (curbuf->b_u_numhead > p_ul && curbuf->b_u_oldhead != NULL) | |
753 | 449 { |
758 | 450 u_header_T *uhfree = curbuf->b_u_oldhead; |
753 | 451 |
1415 | 452 if (uhfree == old_curhead) |
453 /* Can't reconnect the branch, delete all of it. */ | |
454 u_freebranch(curbuf, uhfree, &old_curhead); | |
2242
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455 else if (uhfree->uh_alt_next.ptr == NULL) |
1415 | 456 /* There is no branch, only free one header. */ |
758 | 457 u_freeheader(curbuf, uhfree, &old_curhead); |
753 | 458 else |
459 { | |
460 /* Free the oldest alternate branch as a whole. */ | |
2242
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461 while (uhfree->uh_alt_next.ptr != NULL) |
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462 uhfree = uhfree->uh_alt_next.ptr; |
758 | 463 u_freebranch(curbuf, uhfree, &old_curhead); |
753 | 464 } |
1415 | 465 #ifdef U_DEBUG |
466 u_check(TRUE); | |
467 #endif | |
753 | 468 } |
7 | 469 |
766 | 470 if (uhp == NULL) /* no undo at all */ |
7 | 471 { |
753 | 472 if (old_curhead != NULL) |
473 u_freebranch(curbuf, old_curhead, NULL); | |
7 | 474 curbuf->b_u_synced = FALSE; |
475 return OK; | |
476 } | |
477 | |
2242
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|
478 uhp->uh_prev.ptr = NULL; |
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479 uhp->uh_next.ptr = curbuf->b_u_newhead; |
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480 uhp->uh_alt_next.ptr = old_curhead; |
753 | 481 if (old_curhead != NULL) |
482 { | |
2242
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diff
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|
483 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr; |
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484 if (uhp->uh_alt_prev.ptr != NULL) |
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485 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp; |
bc4685345719
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486 old_curhead->uh_alt_prev.ptr = uhp; |
753 | 487 if (curbuf->b_u_oldhead == old_curhead) |
488 curbuf->b_u_oldhead = uhp; | |
489 } | |
1056 | 490 else |
2242
bc4685345719
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diff
changeset
|
491 uhp->uh_alt_prev.ptr = NULL; |
758 | 492 if (curbuf->b_u_newhead != NULL) |
2242
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diff
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|
493 curbuf->b_u_newhead->uh_prev.ptr = uhp; |
758 | 494 |
777 | 495 uhp->uh_seq = ++curbuf->b_u_seq_last; |
496 curbuf->b_u_seq_cur = uhp->uh_seq; | |
758 | 497 uhp->uh_time = time(NULL); |
2280
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Add file save counter to undo information. Add undotree() function.
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498 uhp->uh_save_nr = 0; |
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499 curbuf->b_u_time_cur = uhp->uh_time + 1; |
758 | 500 |
753 | 501 uhp->uh_walk = 0; |
7 | 502 uhp->uh_entry = NULL; |
503 uhp->uh_getbot_entry = NULL; | |
504 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */ | |
505 #ifdef FEAT_VIRTUALEDIT | |
506 if (virtual_active() && curwin->w_cursor.coladd > 0) | |
507 uhp->uh_cursor_vcol = getviscol(); | |
508 else | |
509 uhp->uh_cursor_vcol = -1; | |
510 #endif | |
511 | |
512 /* save changed and buffer empty flag for undo */ | |
513 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) + | |
514 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
515 | |
692 | 516 /* save named marks and Visual marks for undo */ |
7 | 517 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); |
692 | 518 #ifdef FEAT_VISUAL |
519 uhp->uh_visual = curbuf->b_visual; | |
520 #endif | |
521 | |
7 | 522 curbuf->b_u_newhead = uhp; |
523 if (curbuf->b_u_oldhead == NULL) | |
524 curbuf->b_u_oldhead = uhp; | |
525 ++curbuf->b_u_numhead; | |
526 } | |
527 else | |
528 { | |
529 if (p_ul < 0) /* no undo at all */ | |
530 return OK; | |
531 | |
532 /* | |
533 * When saving a single line, and it has been saved just before, it | |
534 * doesn't make sense saving it again. Saves a lot of memory when | |
535 * making lots of changes inside the same line. | |
536 * This is only possible if the previous change didn't increase or | |
537 * decrease the number of lines. | |
538 * Check the ten last changes. More doesn't make sense and takes too | |
539 * long. | |
540 */ | |
541 if (size == 1) | |
542 { | |
543 uep = u_get_headentry(); | |
544 prev_uep = NULL; | |
545 for (i = 0; i < 10; ++i) | |
546 { | |
547 if (uep == NULL) | |
548 break; | |
549 | |
550 /* If lines have been inserted/deleted we give up. | |
551 * Also when the line was included in a multi-line save. */ | |
552 if ((curbuf->b_u_newhead->uh_getbot_entry != uep | |
553 ? (uep->ue_top + uep->ue_size + 1 | |
554 != (uep->ue_bot == 0 | |
555 ? curbuf->b_ml.ml_line_count + 1 | |
556 : uep->ue_bot)) | |
557 : uep->ue_lcount != curbuf->b_ml.ml_line_count) | |
558 || (uep->ue_size > 1 | |
559 && top >= uep->ue_top | |
560 && top + 2 <= uep->ue_top + uep->ue_size + 1)) | |
561 break; | |
562 | |
563 /* If it's the same line we can skip saving it again. */ | |
564 if (uep->ue_size == 1 && uep->ue_top == top) | |
565 { | |
566 if (i > 0) | |
567 { | |
568 /* It's not the last entry: get ue_bot for the last | |
569 * entry now. Following deleted/inserted lines go to | |
570 * the re-used entry. */ | |
571 u_getbot(); | |
572 curbuf->b_u_synced = FALSE; | |
573 | |
574 /* Move the found entry to become the last entry. The | |
575 * order of undo/redo doesn't matter for the entries | |
576 * we move it over, since they don't change the line | |
577 * count and don't include this line. It does matter | |
578 * for the found entry if the line count is changed by | |
579 * the executed command. */ | |
580 prev_uep->ue_next = uep->ue_next; | |
581 uep->ue_next = curbuf->b_u_newhead->uh_entry; | |
582 curbuf->b_u_newhead->uh_entry = uep; | |
583 } | |
584 | |
585 /* The executed command may change the line count. */ | |
586 if (newbot != 0) | |
587 uep->ue_bot = newbot; | |
588 else if (bot > curbuf->b_ml.ml_line_count) | |
589 uep->ue_bot = 0; | |
590 else | |
591 { | |
592 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
593 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
594 } | |
595 return OK; | |
596 } | |
597 prev_uep = uep; | |
598 uep = uep->ue_next; | |
599 } | |
600 } | |
601 | |
602 /* find line number for ue_bot for previous u_save() */ | |
603 u_getbot(); | |
604 } | |
605 | |
606 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__) | |
607 /* | |
608 * With Amiga and MSDOS 16 bit we can't handle big undo's, because | |
609 * then u_alloc_line would have to allocate a block larger than 32K | |
610 */ | |
611 if (size >= 8000) | |
612 goto nomem; | |
613 #endif | |
614 | |
615 /* | |
616 * add lines in front of entry list | |
617 */ | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
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2229
diff
changeset
|
618 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
7 | 619 if (uep == NULL) |
620 goto nomem; | |
2215
cccb71c2c5c1
Fix uninit memory read in undo code. Fix uint32_t in proto file.
Bram Moolenaar <bram@vim.org>
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2214
diff
changeset
|
621 vim_memset(uep, 0, sizeof(u_entry_T)); |
1415 | 622 #ifdef U_DEBUG |
623 uep->ue_magic = UE_MAGIC; | |
624 #endif | |
7 | 625 |
626 uep->ue_size = size; | |
627 uep->ue_top = top; | |
628 if (newbot != 0) | |
629 uep->ue_bot = newbot; | |
630 /* | |
631 * Use 0 for ue_bot if bot is below last line. | |
632 * Otherwise we have to compute ue_bot later. | |
633 */ | |
634 else if (bot > curbuf->b_ml.ml_line_count) | |
635 uep->ue_bot = 0; | |
636 else | |
637 { | |
638 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
639 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
640 } | |
641 | |
168 | 642 if (size > 0) |
7 | 643 { |
168 | 644 if ((uep->ue_array = (char_u **)U_ALLOC_LINE( |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
645 sizeof(char_u *) * size)) == NULL) |
7 | 646 { |
647 u_freeentry(uep, 0L); | |
648 goto nomem; | |
649 } | |
650 for (i = 0, lnum = top + 1; i < size; ++i) | |
651 { | |
481 | 652 fast_breakcheck(); |
653 if (got_int) | |
654 { | |
655 u_freeentry(uep, i); | |
656 return FAIL; | |
657 } | |
7 | 658 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL) |
659 { | |
660 u_freeentry(uep, i); | |
661 goto nomem; | |
662 } | |
663 } | |
664 } | |
359 | 665 else |
666 uep->ue_array = NULL; | |
7 | 667 uep->ue_next = curbuf->b_u_newhead->uh_entry; |
668 curbuf->b_u_newhead->uh_entry = uep; | |
669 curbuf->b_u_synced = FALSE; | |
670 undo_undoes = FALSE; | |
671 | |
1415 | 672 #ifdef U_DEBUG |
673 u_check(FALSE); | |
674 #endif | |
7 | 675 return OK; |
676 | |
677 nomem: | |
678 msg_silent = 0; /* must display the prompt */ | |
679 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE) | |
680 == 'y') | |
681 { | |
682 undo_off = TRUE; /* will be reset when character typed */ | |
683 return OK; | |
684 } | |
685 do_outofmem_msg((long_u)0); | |
686 return FAIL; | |
687 } | |
688 | |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
689 #if defined(FEAT_PERSISTENT_UNDO) || defined(PROTO) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
690 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
changeset
|
691 # define UF_START_MAGIC "Vim\237UnDo\345" /* magic at start of undofile */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
692 # define UF_START_MAGIC_LEN 9 |
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
693 # define UF_HEADER_MAGIC 0x5fd0 /* magic at start of header */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
694 # 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
|
695 # 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>
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2230
diff
changeset
|
696 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */ |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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2271
diff
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|
697 # define UF_VERSION 2 /* 2-byte undofile version number */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
698 # define UF_VERSION_CRYPT 0x8002 /* idem, encrypted */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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2271
diff
changeset
|
699 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
700 /* extra fields for header */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
701 # define UF_LAST_SAVE_NR 1 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
702 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
703 /* extra fields for uhp */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
704 # define UHP_SAVE_NR 1 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
705 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
706 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
|
707 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
708 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
709 * 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.
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diff
changeset
|
710 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
711 void |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
712 u_compute_hash(hash) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
713 char_u *hash; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
714 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
715 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
|
716 linenr_T lnum; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
717 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
718 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
719 sha256_start(&ctx); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
720 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
|
721 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
722 p = ml_get(lnum); |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
723 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
|
724 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
725 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
|
726 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
727 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
728 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
729 * 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
|
730 * 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
|
731 * 'undodir'. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
732 * 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
|
733 * 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
|
734 */ |
2236
dc2e5ec0500d
Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents:
2235
diff
changeset
|
735 char_u * |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
736 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
|
737 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
|
738 int reading; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
739 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
740 char_u *dirp; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
741 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
|
742 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
|
743 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
|
744 int dir_len; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
745 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
746 struct stat st; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
747 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
|
748 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
749 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
|
750 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
751 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
752 if (ffname == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
753 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
754 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
755 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
756 /* 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
|
757 * 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
|
758 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
|
759 ffname = fname_buf; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
760 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
761 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
762 /* 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
|
763 * 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
|
764 dirp = p_udir; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
765 while (*dirp != NUL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
766 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
767 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ","); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
768 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
|
769 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
770 /* 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
|
771 * "dir/name" -> "dir/.name.un~" */ |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
772 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
|
773 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
|
774 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
775 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
|
776 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
|
777 *p = '.'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
778 STRCAT(p, ".un~"); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
779 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
780 else |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
781 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
782 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
|
783 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
|
784 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
785 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
|
786 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
787 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
|
788 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
|
789 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
790 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
|
791 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
|
792 *p = '%'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
793 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
794 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
|
795 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
796 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
797 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
798 /* 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
|
799 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
|
800 || 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
|
801 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
802 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
|
803 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
|
804 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
805 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
806 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
|
807 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
|
808 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
809 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
810 static void |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
811 corruption_error(mesg, file_name) |
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
812 char *mesg; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
813 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
|
814 { |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
815 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
816 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
817 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
818 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
819 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
|
820 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
|
821 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
822 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
|
823 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
|
824 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
825 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
|
826 while (uep != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
827 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
828 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
|
829 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
|
830 uep = nuep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
831 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
832 vim_free(uhp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
833 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
834 |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
835 /* |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
836 * Like fwrite() but crypt the bytes when 'key' is set. |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
837 * Returns 1 if successful. |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
838 */ |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
839 static size_t |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
840 fwrite_crypt(buf, ptr, len, fp) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
841 buf_T *buf UNUSED; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
842 char_u *ptr; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
843 size_t len; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
844 FILE *fp; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
845 { |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
846 #ifdef FEAT_CRYPT |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
847 char_u *copy; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
848 char_u small_buf[100]; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
849 size_t i; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
850 |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
851 if (*buf->b_p_key == NUL) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
852 return fwrite(ptr, len, (size_t)1, fp); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
853 if (len < 100) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
854 copy = small_buf; /* no malloc()/free() for short strings */ |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
855 else |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
856 { |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
857 copy = lalloc(len, FALSE); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
858 if (copy == NULL) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
859 return 0; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
860 } |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
861 crypt_encode(ptr, len, copy); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
862 i = fwrite(copy, len, (size_t)1, fp); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
863 if (copy != small_buf) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
864 vim_free(copy); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
865 return i; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
866 #else |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
867 return fwrite(ptr, len, (size_t)1, fp); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
868 #endif |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
869 } |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
870 |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
871 /* |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
872 * Read a string of length "len" from "fd". |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
873 * When 'key' is set decrypt the bytes. |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
874 */ |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
875 static char_u * |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
876 read_string_decrypt(buf, fd, len) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
877 buf_T *buf UNUSED; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
878 FILE *fd; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
879 int len; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
880 { |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
881 char_u *ptr; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
882 |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
883 ptr = read_string(fd, len); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
884 #ifdef FEAT_CRYPT |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
885 if (ptr != NULL || *buf->b_p_key != NUL) |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
886 crypt_decode(ptr, len); |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
887 #endif |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
888 return ptr; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
889 } |
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
890 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
891 static int |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
892 serialize_header(fp, buf, hash) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
893 FILE *fp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
894 buf_T *buf; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
895 char_u *hash; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
896 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
897 int len; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
898 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
899 /* 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
|
900 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
|
901 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
|
902 |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
903 /* 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
|
904 * 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
|
905 #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
|
906 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
|
907 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
908 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
|
909 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
|
910 |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
911 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
|
912 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
|
913 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
|
914 return FAIL; |
2245
4e0124f5aee2
Optimize the blowfish crypt/decrypt code a bit more.
Bram Moolenaar <bram@vim.org>
parents:
2242
diff
changeset
|
915 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
|
916 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
|
917 if (len != 1) |
2267 | 918 { |
919 crypt_pop_state(); | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
920 return FAIL; |
2267 | 921 } |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
922 } |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
923 else |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
924 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
925 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
|
926 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
927 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
928 /* 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
|
929 * 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
|
930 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
|
931 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
932 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
933 /* buffer-specific data */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
934 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
|
935 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
|
936 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
|
937 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
|
938 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
939 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
|
940 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
|
941 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
942 /* Undo structures header data */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
943 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
|
944 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
|
945 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
|
946 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
947 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
|
948 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
|
949 put_bytes(fp, (long_u)buf->b_u_seq_cur, 4); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
950 put_time(fp, buf->b_u_time_cur); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
951 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
952 /* Optional fields. */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
953 putc(4, fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
954 putc(UF_LAST_SAVE_NR, fp); |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
955 put_bytes(fp, (long_u)buf->b_u_save_nr_last, 4); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
956 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
957 putc(0, fp); /* end marker */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
958 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
959 return OK; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
960 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
961 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
962 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
|
963 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
|
964 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
|
965 buf_T *buf; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
966 u_header_T *uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
967 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
968 int i; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
969 u_entry_T *uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
970 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
971 if (put_bytes(fp, (long_u)UF_HEADER_MAGIC, 2) == FAIL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
972 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
973 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
974 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
|
975 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
|
976 put_header_ptr(fp, uhp->uh_alt_next.ptr); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
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|
977 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>
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2236
diff
changeset
|
978 put_bytes(fp, uhp->uh_seq, 4); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
979 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
|
980 #ifdef FEAT_VIRTUALEDIT |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
981 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:
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diff
changeset
|
982 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
983 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
|
984 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
985 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:
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diff
changeset
|
986 /* 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
|
987 for (i = 0; i < NMARKS; ++i) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
988 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
|
989 #ifdef FEAT_VISUAL |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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diff
changeset
|
990 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
|
991 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
992 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
993 visualinfo_T info; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
994 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
995 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
|
996 serialize_visualinfo(&info, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
997 } |
3d0a7beb0d75
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Bram Moolenaar <bram@vim.org>
parents:
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|
998 #endif |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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changeset
|
999 put_time(fp, uhp->uh_time); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1000 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1001 /* Optional fields. */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
2271
diff
changeset
|
1002 putc(4, fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1003 putc(UHP_SAVE_NR, fp); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
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diff
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|
1004 put_bytes(fp, (long_u)uhp->uh_save_nr, 4); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1005 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1006 putc(0, fp); /* end marker */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1007 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
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changeset
|
1008 /* Write all the entries. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
1009 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>
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changeset
|
1010 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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|
1011 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
|
1012 if (serialize_uep(fp, buf, uep) == FAIL) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1013 return FAIL; |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1014 } |
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Made reading/writing undo info a bit more robust.
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|
1015 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>
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|
1016 return OK; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
1017 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1018 |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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2236
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|
1019 static u_header_T * |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1020 unserialize_uhp(fp, file_name) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1021 FILE *fp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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changeset
|
1022 char_u *file_name; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1023 { |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1024 u_header_T *uhp; |
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Made reading/writing undo info a bit more robust.
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parents:
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changeset
|
1025 int i; |
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Made reading/writing undo info a bit more robust.
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2236
diff
changeset
|
1026 u_entry_T *uep, *last_uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1027 int c; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1028 int error; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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changeset
|
1029 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
changeset
|
1030 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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|
1031 if (uhp == NULL) |
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Made reading/writing undo info a bit more robust.
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diff
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|
1032 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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changeset
|
1033 vim_memset(uhp, 0, sizeof(u_header_T)); |
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Made reading/writing undo info a bit more robust.
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diff
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|
1034 #ifdef U_DEBUG |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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changeset
|
1035 uhp->uh_magic = UH_MAGIC; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1036 #endif |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1037 uhp->uh_next.seq = get4c(fp); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1038 uhp->uh_prev.seq = get4c(fp); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1039 uhp->uh_alt_next.seq = get4c(fp); |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1040 uhp->uh_alt_prev.seq = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1041 uhp->uh_seq = get4c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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diff
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|
1042 if (uhp->uh_seq <= 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1043 { |
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Made reading/writing undo info a bit more robust.
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parents:
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|
1044 corruption_error("uh_seq", file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
changeset
|
1045 vim_free(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1046 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1047 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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diff
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|
1048 unserialize_pos(&uhp->uh_cursor, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1049 #ifdef FEAT_VIRTUALEDIT |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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changeset
|
1050 uhp->uh_cursor_vcol = get4c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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changeset
|
1051 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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|
1052 (void)get4c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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changeset
|
1053 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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changeset
|
1054 uhp->uh_flags = get2c(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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diff
changeset
|
1055 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
|
1056 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
|
1057 #ifdef FEAT_VISUAL |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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changeset
|
1058 unserialize_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
|
1059 #else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1060 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1061 visualinfo_T info; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1062 unserialize_visualinfo(&info, fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1063 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1064 #endif |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1065 uhp->uh_time = get8ctime(fp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1066 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1067 /* Optional fields. */ |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1068 for (;;) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1069 { |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1070 int len = getc(fp); |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1071 int what; |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1072 |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1073 if (len == 0) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1074 break; |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1075 what = getc(fp); |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1076 switch (what) |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1077 { |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1078 case UHP_SAVE_NR: |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1079 uhp->uh_save_nr = get4c(fp); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1080 break; |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1081 default: |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1082 /* field not supported, skip */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1083 while (--len >= 0) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1084 (void)getc(fp); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1085 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1086 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1087 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1088 /* Unserialize the uep list. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1089 last_uep = NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1090 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
|
1091 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1092 error = FALSE; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1093 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
|
1094 if (last_uep == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1095 uhp->uh_entry = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1096 else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1097 last_uep->ue_next = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1098 last_uep = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1099 if (uep == NULL || error) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1100 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1101 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1102 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1103 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1104 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1105 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
|
1106 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1107 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
|
1108 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1109 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1110 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1111 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1112 return uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1113 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1114 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1115 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1116 * 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
|
1117 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1118 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
|
1119 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
|
1120 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
|
1121 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
|
1122 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
|
1123 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1124 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1125 size_t len; |
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 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
|
1128 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
|
1129 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
|
1130 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
|
1131 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
|
1132 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1133 len = STRLEN(uep->ue_array[i]); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1134 if (put_bytes(fp, (long_u)len, 4) == FAIL) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1135 return FAIL; |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1136 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
|
1137 return FAIL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1138 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1139 return OK; |
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 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
|
1143 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
|
1144 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1145 int *error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1146 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
|
1147 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1148 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1149 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
|
1150 char_u **array; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1151 char_u *line; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1152 int line_len; |
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 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
|
1155 if (uep == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1156 return NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1157 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
|
1158 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1159 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
|
1160 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1161 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
|
1162 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
|
1163 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
|
1164 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
|
1165 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
|
1166 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1167 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
|
1168 if (array == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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 *error = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1171 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1172 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1173 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
|
1174 } |
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
|
1175 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
|
1176 array = NULL; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1177 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
|
1178 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1179 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
|
1180 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1181 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
|
1182 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
|
1183 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
|
1184 else |
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 line = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1187 corruption_error("line length", file_name); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1188 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1189 if (line == 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 *error = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1192 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1193 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1194 array[i] = line; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1195 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1196 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1197 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1198 |
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 * Serialize "pos" to "fp". |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1201 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1202 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1203 serialize_pos(pos, fp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1204 pos_T pos; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1205 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1206 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1207 put_bytes(fp, (long_u)pos.lnum, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1208 put_bytes(fp, (long_u)pos.col, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1209 #ifdef FEAT_VIRTUALEDIT |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1210 put_bytes(fp, (long_u)pos.coladd, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1211 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1212 put_bytes(fp, (long_u)0, 4); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1213 #endif |
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 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1216 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1217 * Unserialize the pos_T at the current position in fp. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1218 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1219 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1220 unserialize_pos(pos, fp) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1221 pos_T *pos; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1222 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1223 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1224 pos->lnum = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1225 if (pos->lnum < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1226 pos->lnum = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1227 pos->col = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1228 if (pos->col < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1229 pos->col = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1230 #ifdef FEAT_VIRTUALEDIT |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1231 pos->coladd = get4c(fp); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1232 if (pos->coladd < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1233 pos->coladd = 0; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1234 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1235 (void)get4c(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1236 #endif |
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 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1239 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1240 * Serialize "info" to "fp". |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1241 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1242 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1243 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
|
1244 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1245 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1246 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1247 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
|
1248 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
|
1249 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
|
1250 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
|
1251 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1252 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1253 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1254 * 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
|
1255 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1256 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1257 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
|
1258 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1259 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1260 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1261 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
|
1262 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
|
1263 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
|
1264 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
|
1265 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1266 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1267 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1268 * 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
|
1269 * 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
|
1270 * pointers when reading. */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1271 static void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1272 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
|
1273 FILE *fp; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1274 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
|
1275 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1276 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
|
1277 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1278 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1279 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1280 * 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
|
1281 * 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
|
1282 * Otherwise use buf->b_ffname to generate the undo file name. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1283 * "buf" must never be null, buf->b_ffname is used to obtain the original file |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1284 * permissions. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1285 * "forceit" is TRUE for ":wundo!", FALSE otherwise. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1286 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1287 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1288 void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1289 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
|
1290 char_u *name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1291 int forceit; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1292 buf_T *buf; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1293 char_u *hash; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1294 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1295 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
|
1296 char_u *file_name; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1297 int mark; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1298 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1299 int headers_written = 0; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1300 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1301 int fd; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1302 FILE *fp = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1303 int perm; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1304 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
|
1305 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1306 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
|
1307 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
|
1308 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
|
1309 #endif |
2267 | 1310 #ifdef FEAT_CRYPT |
1311 int do_crypt = FALSE; | |
1312 #endif | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1313 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1314 if (name == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1315 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1316 file_name = u_get_undo_file_name(buf->b_ffname, FALSE); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1317 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
|
1318 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1319 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
|
1320 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1321 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1322 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
|
1323 _("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
|
1324 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1325 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1326 return; |
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 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1329 else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1330 file_name = name; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1331 |
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 * 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
|
1334 * 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
|
1335 * 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
|
1336 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1337 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1338 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
|
1339 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1340 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1341 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
|
1342 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1343 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
|
1344 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
|
1345 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1346 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1347 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
|
1348 if (perm < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1349 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1350 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1351 } |
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 /* 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
|
1354 perm = perm & 0777; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1355 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1356 /* 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
|
1357 * 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
|
1358 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
|
1359 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1360 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
|
1361 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1362 /* 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
|
1363 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
|
1364 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1365 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1366 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
|
1367 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1368 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
|
1369 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1370 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
|
1371 _("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
|
1372 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
|
1373 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
|
1374 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1375 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1376 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1377 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1378 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1379 { |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1380 char_u mbuf[UF_START_MAGIC_LEN]; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1381 int len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1382 |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1383 len = vim_read(fd, mbuf, UF_START_MAGIC_LEN); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1384 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1385 if (len < UF_START_MAGIC_LEN |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1386 || memcmp(mbuf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1387 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1388 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
|
1389 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1390 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
|
1391 verbose_enter(); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1392 smsg((char_u *) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1393 _("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
|
1394 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
|
1395 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
|
1396 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1397 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1398 goto theend; |
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 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1401 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1402 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
|
1403 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1404 |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1405 /* 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
|
1406 * existing undo file. */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1407 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
|
1408 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1409 if (p_verbose > 0) |
2262 | 1410 verb_msg((char_u *)_("Skipping undo file write, nothing to undo")); |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1411 goto theend; |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1412 } |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1413 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1414 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
|
1415 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
|
1416 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1417 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1418 EMSG2(_(e_not_open), file_name); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1419 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1420 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1421 (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
|
1422 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
|
1423 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1424 verbose_enter(); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1425 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
|
1426 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1427 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1428 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1429 #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
|
1430 /* 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
|
1431 u_check(FALSE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1432 #endif |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1433 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1434 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1435 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1436 * 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
|
1437 * 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
|
1438 * 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
|
1439 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1440 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
|
1441 && 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
|
1442 # 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
|
1443 && 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
|
1444 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1445 ) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1446 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
|
1447 # ifdef HAVE_SELINUX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1448 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
|
1449 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
|
1450 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1451 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1452 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1453 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
|
1454 if (fp == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1455 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1456 EMSG2(_(e_not_open), file_name); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1457 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1458 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
|
1459 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1460 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1461 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1462 /* Undo must be synced. */ |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1463 u_sync(TRUE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1464 |
2238
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 * Write the header. |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1467 */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1468 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
|
1469 goto write_error; |
2267 | 1470 #ifdef FEAT_CRYPT |
1471 if (*buf->b_p_key) | |
1472 do_crypt = TRUE; | |
1473 #endif | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1474 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1475 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1476 * 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
|
1477 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1478 mark = ++lastmark; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1479 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
|
1480 while (uhp != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1481 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1482 /* Serialize current UHP if we haven't seen it */ |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1483 if (uhp->uh_walk != mark) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1484 { |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1485 uhp->uh_walk = mark; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1486 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1487 ++headers_written; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1488 #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
|
1489 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
|
1490 goto write_error; |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1491 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1492 |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1493 /* Now walk through the tree - algorithm from undo_time(). */ |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1494 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != mark) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1495 uhp = uhp->uh_prev.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1496 else if (uhp->uh_alt_next.ptr != NULL |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1497 && uhp->uh_alt_next.ptr->uh_walk != mark) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1498 uhp = uhp->uh_alt_next.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1499 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1500 && uhp->uh_next.ptr->uh_walk != mark) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1501 uhp = uhp->uh_next.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1502 else if (uhp->uh_alt_prev.ptr != NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1503 uhp = uhp->uh_alt_prev.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1504 else |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1505 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
|
1506 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1507 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1508 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
|
1509 write_ok = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1510 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1511 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
|
1512 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
|
1513 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
|
1514 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1515 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1516 write_error: |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1517 fclose(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1518 if (!write_ok) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1519 EMSG2(_("E829: write error in undo file: %s"), file_name); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1520 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1521 #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
|
1522 /* 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
|
1523 * 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
|
1524 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
|
1525 (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
|
1526 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1527 #ifdef HAVE_ACL |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1528 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
|
1529 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1530 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
|
1531 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1532 /* 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
|
1533 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
|
1534 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
|
1535 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1536 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1537 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1538 theend: |
2267 | 1539 #ifdef FEAT_CRYPT |
1540 if (do_crypt) | |
1541 crypt_pop_state(); | |
1542 #endif | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1543 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
|
1544 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
|
1545 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1546 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1547 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1548 * 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
|
1549 * 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
|
1550 * 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
|
1551 * 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
|
1552 * "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
|
1553 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1554 void |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1555 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
|
1556 char_u *name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1557 char_u *hash; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1558 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
|
1559 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1560 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
|
1561 FILE *fp; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1562 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
|
1563 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
|
1564 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
|
1565 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
|
1566 linenr_T line_count; |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
1567 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
|
1568 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
|
1569 long seq_last, seq_cur; |
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
1570 long last_save_nr = 0; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1571 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
|
1572 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
|
1573 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
|
1574 int i, j; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1575 int c; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1576 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
|
1577 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
|
1578 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
|
1579 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
|
1580 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1581 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
|
1582 #endif |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1583 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1584 struct stat st_orig; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1585 struct stat st_undo; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1586 #endif |
2267 | 1587 #ifdef FEAT_CRYPT |
1588 int do_decrypt = FALSE; | |
1589 #endif | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1590 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1591 if (name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1592 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1593 file_name = u_get_undo_file_name(curbuf->b_ffname, TRUE); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1594 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
|
1595 return; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1596 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1597 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1598 /* 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
|
1599 * owner of the text file. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1600 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
|
1601 && 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
|
1602 && 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
|
1603 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1604 if (p_verbose > 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1605 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1606 verbose_enter(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1607 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
|
1608 file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1609 verbose_leave(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1610 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1611 return; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1612 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1613 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1614 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1615 else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1616 file_name = name; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1617 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1618 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
|
1619 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1620 verbose_enter(); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1621 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
|
1622 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1623 } |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1624 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1625 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
|
1626 if (fp == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1627 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1628 if (name != NULL || p_verbose > 0) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1629 EMSG2(_("E822: Cannot open undo file for reading: %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
|
1630 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1631 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1632 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1633 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1634 * 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
|
1635 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1636 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
|
1637 || 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
|
1638 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1639 EMSG2(_("E823: Not an undo file: %s"), file_name); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1640 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1641 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1642 version = get2c(fp); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1643 if (version == UF_VERSION_CRYPT) |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1644 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1645 #ifdef FEAT_CRYPT |
2251
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1646 if (*curbuf->b_p_key == NUL) |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1647 { |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1648 EMSG2(_("E832: Non-encrypted file has encrypted undo file: %s"), |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1649 file_name); |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1650 goto error; |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1651 } |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1652 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
|
1653 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1654 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
|
1655 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
|
1656 } |
2267 | 1657 do_decrypt = TRUE; |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1658 #else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1659 EMSG2(_("E827: Undo file is encrypted: %s"), file_name); |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1660 goto error; |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1661 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1662 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1663 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
|
1664 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1665 EMSG2(_("E824: Incompatible undo file: %s"), file_name); |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1666 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1667 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1668 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1669 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
|
1670 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1671 corruption_error("hash", file_name); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1672 goto error; |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1673 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1674 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
|
1675 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
|
1676 || 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
|
1677 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1678 if (p_verbose > 0 || name != NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1679 { |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1680 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
|
1681 verbose_enter(); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1682 give_warning((char_u *) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1683 _("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
|
1684 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
|
1685 verbose_leave(); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1686 } |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1687 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1688 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1689 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1690 /* 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
|
1691 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
|
1692 if (str_len < 0) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1693 goto error; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1694 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
|
1695 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
|
1696 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
|
1697 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
|
1698 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
|
1699 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1700 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
|
1701 goto error; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1702 } |
2214
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 /* 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
|
1705 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
|
1706 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
|
1707 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
|
1708 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
|
1709 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
|
1710 seq_cur = get4c(fp); |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1711 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
|
1712 |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1713 /* Optional header fields. */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1714 for (;;) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1715 { |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1716 int len = getc(fp); |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1717 int what; |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1718 |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1719 if (len == 0 || len == EOF) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1720 break; |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1721 what = getc(fp); |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1722 switch (what) |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1723 { |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1724 case UF_LAST_SAVE_NR: |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1725 last_save_nr = get4c(fp); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1726 break; |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1727 default: |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1728 /* field not supported, skip */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1729 while (--len >= 0) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1730 (void)getc(fp); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1731 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1732 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1733 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1734 /* 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
|
1735 * 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
|
1736 * 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
|
1737 * 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
|
1738 if (num_head > 0) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1739 { |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1740 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
|
1741 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
|
1742 if (uhp_table == NULL) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1743 goto error; |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1744 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1745 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1746 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
|
1747 { |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1748 if (num_read_uhps >= num_head) |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1749 { |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1750 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
|
1751 goto error; |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1752 } |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1753 |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1754 uhp = unserialize_uhp(fp, file_name); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1755 if (uhp == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1756 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1757 uhp_table[num_read_uhps++] = uhp; |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1758 } |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1759 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1760 if (num_read_uhps != num_head) |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1761 { |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1762 corruption_error("num_head", file_name); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1763 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1764 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1765 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
|
1766 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1767 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
|
1768 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1769 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1770 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1771 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1772 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
|
1773 (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
|
1774 # 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
|
1775 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1776 # 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
|
1777 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1778 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1779 /* 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
|
1780 * 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
|
1781 * 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
|
1782 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
|
1783 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1784 uhp = uhp_table[i]; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1785 if (uhp == NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1786 continue; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1787 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1788 if (uhp_table[j] != NULL && i != j |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1789 && uhp_table[i]->uh_seq == uhp_table[j]->uh_seq) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1790 { |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1791 corruption_error("duplicate uh_seq", file_name); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1792 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1793 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1794 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1795 if (uhp_table[j] != NULL |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1796 && 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
|
1797 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1798 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
|
1799 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1800 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1801 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1802 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1803 if (uhp_table[j] != NULL |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1804 && 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
|
1805 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1806 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
|
1807 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1808 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1809 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1810 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1811 if (uhp_table[j] != NULL |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1812 && 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
|
1813 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1814 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
|
1815 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1816 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1817 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1818 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1819 if (uhp_table[j] != NULL |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1820 && 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
|
1821 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1822 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
|
1823 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1824 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1825 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1826 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
|
1827 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1828 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
|
1829 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1830 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1831 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
|
1832 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1833 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
|
1834 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1835 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1836 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
|
1837 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1838 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
|
1839 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1840 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1841 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1842 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1843 /* 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
|
1844 * 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
|
1845 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
|
1846 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
|
1847 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
|
1848 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
|
1849 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
|
1850 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
|
1851 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
|
1852 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
|
1853 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
|
1854 curbuf->b_u_seq_cur = seq_cur; |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1855 curbuf->b_u_time_cur = seq_time; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
1856 curbuf->b_u_save_nr_last = last_save_nr; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1857 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1858 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
|
1859 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
|
1860 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1861 #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
|
1862 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
|
1863 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
|
1864 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
|
1865 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
|
1866 u_check(TRUE); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1867 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1868 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1869 if (name != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1870 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
|
1871 goto theend; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1872 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1873 error: |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1874 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
|
1875 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
|
1876 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1877 for (i = 0; i < num_read_uhps; i++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
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2289
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|
1878 if (uhp_table[i] != NULL) |
2223
81b83a19e127
More strict checks for the undo file.
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diff
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|
1879 u_free_uhp(uhp_table[i]); |
2311
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Support completion for ":find". (Nazri Ramliy)
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diff
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|
1880 vim_free(uhp_table); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
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|
1881 } |
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Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
1882 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
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|
1883 theend: |
2267 | 1884 #ifdef FEAT_CRYPT |
1885 if (do_decrypt) | |
1886 crypt_pop_state(); | |
1887 #endif | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
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|
1888 if (fp != NULL) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1889 fclose(fp); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1890 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
|
1891 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
|
1892 return; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1893 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1894 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1895 #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
|
1896 |
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Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
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|
1897 |
7 | 1898 /* |
1899 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible). | |
1900 * If 'cpoptions' does not contain 'u': Always undo. | |
1901 */ | |
1902 void | |
1903 u_undo(count) | |
1904 int count; | |
1905 { | |
1906 /* | |
1907 * If we get an undo command while executing a macro, we behave like the | |
1908 * original vi. If this happens twice in one macro the result will not | |
1909 * be compatible. | |
1910 */ | |
1911 if (curbuf->b_u_synced == FALSE) | |
1912 { | |
825 | 1913 u_sync(TRUE); |
7 | 1914 count = 1; |
1915 } | |
1916 | |
1917 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
1918 undo_undoes = TRUE; | |
1919 else | |
1920 undo_undoes = !undo_undoes; | |
1921 u_doit(count); | |
1922 } | |
1923 | |
1924 /* | |
1925 * If 'cpoptions' contains 'u': Repeat the previous undo or redo. | |
1926 * If 'cpoptions' does not contain 'u': Always redo. | |
1927 */ | |
1928 void | |
1929 u_redo(count) | |
1930 int count; | |
1931 { | |
1932 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
1933 undo_undoes = FALSE; | |
1934 u_doit(count); | |
1935 } | |
1936 | |
1937 /* | |
1938 * Undo or redo, depending on 'undo_undoes', 'count' times. | |
1939 */ | |
1940 static void | |
777 | 1941 u_doit(startcount) |
1942 int startcount; | |
7 | 1943 { |
777 | 1944 int count = startcount; |
1945 | |
632 | 1946 if (!undo_allowed()) |
7 | 1947 return; |
1948 | |
1949 u_newcount = 0; | |
1950 u_oldcount = 0; | |
179 | 1951 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
1952 u_oldcount = -1; | |
7 | 1953 while (count--) |
1954 { | |
2288 | 1955 /* Do the change warning now, so that it triggers FileChangedRO when |
1956 * needed. This may cause the file to be reloaded, that must happen | |
1957 * before we do anything, because it may change curbuf->b_u_curhead | |
1958 * and more. */ | |
1959 change_warning(0); | |
1960 | |
7 | 1961 if (undo_undoes) |
1962 { | |
1963 if (curbuf->b_u_curhead == NULL) /* first undo */ | |
1964 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
1965 else if (p_ul > 0) /* multi level undo */ | |
1966 /* get next undo */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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2239
diff
changeset
|
1967 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr; |
7 | 1968 /* nothing to undo */ |
1969 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL) | |
1970 { | |
1971 /* stick curbuf->b_u_curhead at end */ | |
1972 curbuf->b_u_curhead = curbuf->b_u_oldhead; | |
1973 beep_flush(); | |
777 | 1974 if (count == startcount - 1) |
1975 { | |
1976 MSG(_("Already at oldest change")); | |
1977 return; | |
1978 } | |
7 | 1979 break; |
1980 } | |
1981 | |
777 | 1982 u_undoredo(TRUE); |
7 | 1983 } |
1984 else | |
1985 { | |
1986 if (curbuf->b_u_curhead == NULL || p_ul <= 0) | |
1987 { | |
1988 beep_flush(); /* nothing to redo */ | |
777 | 1989 if (count == startcount - 1) |
1990 { | |
1991 MSG(_("Already at newest change")); | |
1992 return; | |
1993 } | |
7 | 1994 break; |
1995 } | |
1996 | |
777 | 1997 u_undoredo(FALSE); |
753 | 1998 |
1999 /* Advance for next redo. Set "newhead" when at the end of the | |
2000 * redoable changes. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2001 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
753 | 2002 curbuf->b_u_newhead = curbuf->b_u_curhead; |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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parents:
2239
diff
changeset
|
2003 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr; |
7 | 2004 } |
2005 } | |
798 | 2006 u_undo_end(undo_undoes, FALSE); |
753 | 2007 } |
2008 | |
2009 /* | |
2010 * Undo or redo over the timeline. | |
2011 * When "step" is negative go back in time, otherwise goes forward in time. | |
758 | 2012 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as |
2013 * seconds. | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2014 * When "file" is TRUE use "step" as a number of file writes. |
772 | 2015 * When "absolute" is TRUE use "step" as the sequence number to jump to. |
2016 * "sec" must be FALSE then. | |
753 | 2017 */ |
2018 void | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2019 undo_time(step, sec, file, absolute) |
758 | 2020 long step; |
2021 int sec; | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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|
2022 int file; |
772 | 2023 int absolute; |
753 | 2024 { |
2025 long target; | |
2026 long closest; | |
758 | 2027 long closest_start; |
2028 long closest_seq = 0; | |
2029 long val; | |
753 | 2030 u_header_T *uhp; |
2031 u_header_T *last; | |
2032 int mark; | |
2033 int nomark; | |
2034 int round; | |
758 | 2035 int dosec = sec; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2036 int dofile = file; |
758 | 2037 int above = FALSE; |
794 | 2038 int did_undo = TRUE; |
753 | 2039 |
766 | 2040 /* First make sure the current undoable change is synced. */ |
2041 if (curbuf->b_u_synced == FALSE) | |
825 | 2042 u_sync(TRUE); |
766 | 2043 |
753 | 2044 u_newcount = 0; |
2045 u_oldcount = 0; | |
179 | 2046 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
753 | 2047 u_oldcount = -1; |
2048 | |
777 | 2049 /* "target" is the node below which we want to be. |
2050 * Init "closest" to a value we can't reach. */ | |
772 | 2051 if (absolute) |
2052 { | |
2053 target = step; | |
777 | 2054 closest = -1; |
753 | 2055 } |
2056 else | |
2057 { | |
777 | 2058 /* When doing computations with time_t subtract starttime, because |
2059 * time_t converted to a long may result in a wrong number. */ | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2060 if (dosec) |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2061 target = (long)(curbuf->b_u_time_cur - starttime) + step; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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parents:
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diff
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|
2062 else if (dofile) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2063 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2064 if (step < 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
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|
2065 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2066 /* Going back to a previous write. If there were changes after |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2067 * the last write, count that as moving one file-write, so |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2068 * that ":earlier 1f" undoes all changes since the last save. */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2069 uhp = curbuf->b_u_curhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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parents:
2280
diff
changeset
|
2070 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2071 uhp = uhp->uh_next.ptr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2072 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2073 uhp = curbuf->b_u_newhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2074 if (uhp != NULL && uhp->uh_save_nr != 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2075 /* "uh_save_nr" was set in the last block, that means |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2076 * there were no changes since the last write */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2077 target = curbuf->b_u_save_nr_cur + step; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2078 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2079 /* count the changes since the last write as one step */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2080 target = curbuf->b_u_save_nr_cur + step + 1; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2081 if (target <= 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2082 /* Go to before first write: before the oldest change. Use |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2083 * the sequence number for that. */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2084 dofile = FALSE; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2085 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2086 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2087 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2088 /* Moving forward to a newer write. */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2089 target = curbuf->b_u_save_nr_cur + step; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2090 if (target > curbuf->b_u_save_nr_last) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2091 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2092 /* Go to after last write: after the latest change. Use |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2093 * the sequence number for that. */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2094 target = curbuf->b_u_seq_last + 1; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2095 dofile = FALSE; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2096 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2097 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2098 } |
777 | 2099 else |
2100 target = curbuf->b_u_seq_cur + step; | |
2101 if (step < 0) | |
758 | 2102 { |
777 | 2103 if (target < 0) |
2104 target = 0; | |
2105 closest = -1; | |
758 | 2106 } |
2107 else | |
2108 { | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2109 if (dosec) |
798 | 2110 closest = (long)(time(NULL) - starttime + 1); |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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parents:
2280
diff
changeset
|
2111 else if (dofile) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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2280
diff
changeset
|
2112 closest = curbuf->b_u_save_nr_last + 2; |
777 | 2113 else |
2114 closest = curbuf->b_u_seq_last + 2; | |
2115 if (target >= closest) | |
2116 target = closest - 1; | |
758 | 2117 } |
753 | 2118 } |
758 | 2119 closest_start = closest; |
777 | 2120 closest_seq = curbuf->b_u_seq_cur; |
753 | 2121 |
758 | 2122 /* |
2123 * May do this twice: | |
753 | 2124 * 1. Search for "target", update "closest" to the best match found. |
758 | 2125 * 2. If "target" not found search for "closest". |
2126 * | |
2127 * When using the closest time we use the sequence number in the second | |
2128 * round, because there may be several entries with the same time. | |
2129 */ | |
753 | 2130 for (round = 1; round <= 2; ++round) |
2131 { | |
2132 /* Find the path from the current state to where we want to go. The | |
2133 * desired state can be anywhere in the undo tree, need to go all over | |
2134 * it. We put "nomark" in uh_walk where we have been without success, | |
2135 * "mark" where it could possibly be. */ | |
2136 mark = ++lastmark; | |
2137 nomark = ++lastmark; | |
2138 | |
2139 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */ | |
2140 uhp = curbuf->b_u_newhead; | |
2141 else | |
2142 uhp = curbuf->b_u_curhead; | |
2143 | |
2144 while (uhp != NULL) | |
2145 { | |
2146 uhp->uh_walk = mark; | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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2280
diff
changeset
|
2147 if (dosec) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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2280
diff
changeset
|
2148 val = (long)(uhp->uh_time - starttime); |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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parents:
2280
diff
changeset
|
2149 else if (dofile) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2150 val = uhp->uh_save_nr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2151 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2152 val = uhp->uh_seq; |
753 | 2153 |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2154 if (round == 1 && !(dofile && val == 0)) |
758 | 2155 { |
2156 /* Remember the header that is closest to the target. | |
2157 * It must be at least in the right direction (checked with | |
777 | 2158 * "b_u_seq_cur"). When the timestamp is equal find the |
758 | 2159 * highest/lowest sequence number. */ |
777 | 2160 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur |
2161 : uhp->uh_seq > curbuf->b_u_seq_cur) | |
2162 && ((dosec && val == closest) | |
2163 ? (step < 0 | |
2164 ? uhp->uh_seq < closest_seq | |
2165 : uhp->uh_seq > closest_seq) | |
2166 : closest == closest_start | |
2167 || (val > target | |
2168 ? (closest > target | |
2169 ? val - target <= closest - target | |
2170 : val - target <= target - closest) | |
2171 : (closest > target | |
2172 ? target - val <= closest - target | |
2173 : target - val <= target - closest)))) | |
758 | 2174 { |
2175 closest = val; | |
2176 closest_seq = uhp->uh_seq; | |
2177 } | |
2178 } | |
2179 | |
2180 /* Quit searching when we found a match. But when searching for a | |
2181 * time we need to continue looking for the best uh_seq. */ | |
2182 if (target == val && !dosec) | |
2281
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2280
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|
2183 { |
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diff
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|
2184 target = uhp->uh_seq; |
758 | 2185 break; |
2281
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Added ":earlier 1f" and ":later 1f".
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diff
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|
2186 } |
753 | 2187 |
2188 /* go down in the tree if we haven't been there */ | |
2242
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|
2189 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
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|
2190 && uhp->uh_prev.ptr->uh_walk != mark) |
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diff
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|
2191 uhp = uhp->uh_prev.ptr; |
753 | 2192 |
2193 /* go to alternate branch if we haven't been there */ | |
2242
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2194 else if (uhp->uh_alt_next.ptr != NULL |
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|
2195 && uhp->uh_alt_next.ptr->uh_walk != nomark |
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|
2196 && uhp->uh_alt_next.ptr->uh_walk != mark) |
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diff
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|
2197 uhp = uhp->uh_alt_next.ptr; |
753 | 2198 |
2199 /* go up in the tree if we haven't been there and we are at the | |
2200 * start of alternate branches */ | |
2242
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|
2201 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
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|
2202 && uhp->uh_next.ptr->uh_walk != nomark |
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diff
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|
2203 && uhp->uh_next.ptr->uh_walk != mark) |
798 | 2204 { |
2205 /* If still at the start we don't go through this change. */ | |
2206 if (uhp == curbuf->b_u_curhead) | |
2207 uhp->uh_walk = nomark; | |
2242
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diff
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|
2208 uhp = uhp->uh_next.ptr; |
798 | 2209 } |
753 | 2210 |
2211 else | |
2212 { | |
2213 /* need to backtrack; mark this node as useless */ | |
2214 uhp->uh_walk = nomark; | |
2242
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2215 if (uhp->uh_alt_prev.ptr != NULL) |
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2216 uhp = uhp->uh_alt_prev.ptr; |
753 | 2217 else |
2242
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|
2218 uhp = uhp->uh_next.ptr; |
753 | 2219 } |
2220 } | |
2221 | |
2222 if (uhp != NULL) /* found it */ | |
2223 break; | |
772 | 2224 |
2225 if (absolute) | |
2226 { | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2227 EMSGN(_("E830: Undo number %ld not found"), step); |
772 | 2228 return; |
2229 } | |
2230 | |
758 | 2231 if (closest == closest_start) |
753 | 2232 { |
758 | 2233 if (step < 0) |
2234 MSG(_("Already at oldest change")); | |
2235 else | |
2236 MSG(_("Already at newest change")); | |
753 | 2237 return; |
2238 } | |
2239 | |
758 | 2240 target = closest_seq; |
2241 dosec = FALSE; | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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2280
diff
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|
2242 dofile = FALSE; |
758 | 2243 if (step < 0) |
2244 above = TRUE; /* stop above the header */ | |
753 | 2245 } |
2246 | |
2247 /* If we found it: Follow the path to go to where we want to be. */ | |
2248 if (uhp != NULL) | |
2249 { | |
2250 /* | |
2251 * First go up the tree as much as needed. | |
2252 */ | |
2288 | 2253 while (!got_int) |
753 | 2254 { |
2288 | 2255 /* Do the change warning now, for the same reason as above. */ |
2256 change_warning(0); | |
2257 | |
753 | 2258 uhp = curbuf->b_u_curhead; |
2259 if (uhp == NULL) | |
2260 uhp = curbuf->b_u_newhead; | |
2261 else | |
2242
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2239
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|
2262 uhp = uhp->uh_next.ptr; |
777 | 2263 if (uhp == NULL || uhp->uh_walk != mark |
2264 || (uhp->uh_seq == target && !above)) | |
753 | 2265 break; |
2266 curbuf->b_u_curhead = uhp; | |
777 | 2267 u_undoredo(TRUE); |
753 | 2268 uhp->uh_walk = nomark; /* don't go back down here */ |
2269 } | |
2270 | |
2271 /* | |
758 | 2272 * And now go down the tree (redo), branching off where needed. |
753 | 2273 */ |
2288 | 2274 while (!got_int) |
753 | 2275 { |
2288 | 2276 /* Do the change warning now, for the same reason as above. */ |
2277 change_warning(0); | |
2278 | |
2279 uhp = curbuf->b_u_curhead; | |
2280 if (uhp == NULL) | |
2281 break; | |
2282 | |
1056 | 2283 /* Go back to the first branch with a mark. */ |
2242
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diff
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2284 while (uhp->uh_alt_prev.ptr != NULL |
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Bram Moolenaar <bram@vim.org>
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|
2285 && uhp->uh_alt_prev.ptr->uh_walk == mark) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
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2239
diff
changeset
|
2286 uhp = uhp->uh_alt_prev.ptr; |
1056 | 2287 |
753 | 2288 /* Find the last branch with a mark, that's the one. */ |
2289 last = uhp; | |
2242
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Bram Moolenaar <bram@vim.org>
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diff
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|
2290 while (last->uh_alt_next.ptr != NULL |
bc4685345719
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|
2291 && last->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
|
2292 last = last->uh_alt_next.ptr; |
753 | 2293 if (last != uhp) |
2294 { | |
2295 /* Make the used branch the first entry in the list of | |
2296 * alternatives to make "u" and CTRL-R take this branch. */ | |
2242
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|
2297 while (uhp->uh_alt_prev.ptr != NULL) |
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
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|
2298 uhp = uhp->uh_alt_prev.ptr; |
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diff
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|
2299 if (last->uh_alt_next.ptr != NULL) |
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Bram Moolenaar <bram@vim.org>
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|
2300 last->uh_alt_next.ptr->uh_alt_prev.ptr = |
bc4685345719
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Bram Moolenaar <bram@vim.org>
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|
2301 last->uh_alt_prev.ptr; |
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parents:
2239
diff
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|
2302 last->uh_alt_prev.ptr->uh_alt_next.ptr = last->uh_alt_next.ptr; |
bc4685345719
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Bram Moolenaar <bram@vim.org>
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2239
diff
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|
2303 last->uh_alt_prev.ptr = NULL; |
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Bram Moolenaar <bram@vim.org>
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2239
diff
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|
2304 last->uh_alt_next.ptr = uhp; |
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Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2305 uhp->uh_alt_prev.ptr = last; |
753 | 2306 |
2234 | 2307 if (curbuf->b_u_oldhead == uhp) |
2308 curbuf->b_u_oldhead = last; | |
753 | 2309 uhp = last; |
2242
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2239
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|
2310 if (uhp->uh_next.ptr != NULL) |
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2311 uhp->uh_next.ptr->uh_prev.ptr = uhp; |
753 | 2312 } |
758 | 2313 curbuf->b_u_curhead = uhp; |
753 | 2314 |
2315 if (uhp->uh_walk != mark) | |
2316 break; /* must have reached the target */ | |
2317 | |
758 | 2318 /* Stop when going backwards in time and didn't find the exact |
2319 * header we were looking for. */ | |
2320 if (uhp->uh_seq == target && above) | |
798 | 2321 { |
2322 curbuf->b_u_seq_cur = target - 1; | |
758 | 2323 break; |
798 | 2324 } |
758 | 2325 |
777 | 2326 u_undoredo(FALSE); |
753 | 2327 |
2328 /* Advance "curhead" to below the header we last used. If it | |
2329 * becomes NULL then we need to set "newhead" to this leaf. */ | |
2242
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2330 if (uhp->uh_prev.ptr == NULL) |
753 | 2331 curbuf->b_u_newhead = uhp; |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
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2239
diff
changeset
|
2332 curbuf->b_u_curhead = uhp->uh_prev.ptr; |
794 | 2333 did_undo = FALSE; |
753 | 2334 |
2335 if (uhp->uh_seq == target) /* found it! */ | |
2336 break; | |
2337 | |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
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2239
diff
changeset
|
2338 uhp = uhp->uh_prev.ptr; |
753 | 2339 if (uhp == NULL || uhp->uh_walk != mark) |
2340 { | |
777 | 2341 /* Need to redo more but can't find it... */ |
753 | 2342 EMSG2(_(e_intern2), "undo_time()"); |
2343 break; | |
2344 } | |
2345 } | |
2346 } | |
798 | 2347 u_undo_end(did_undo, absolute); |
7 | 2348 } |
2349 | |
2350 /* | |
2351 * u_undoredo: common code for undo and redo | |
2352 * | |
2353 * The lines in the file are replaced by the lines in the entry list at | |
2354 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry | |
2355 * list for the next undo/redo. | |
777 | 2356 * |
2357 * When "undo" is TRUE we go up in the tree, when FALSE we go down. | |
7 | 2358 */ |
2359 static void | |
777 | 2360 u_undoredo(undo) |
2361 int undo; | |
7 | 2362 { |
2363 char_u **newarray = NULL; | |
2364 linenr_T oldsize; | |
2365 linenr_T newsize; | |
2366 linenr_T top, bot; | |
2367 linenr_T lnum; | |
2368 linenr_T newlnum = MAXLNUM; | |
2369 long i; | |
2370 u_entry_T *uep, *nuep; | |
2371 u_entry_T *newlist = NULL; | |
2372 int old_flags; | |
2373 int new_flags; | |
2374 pos_T namedm[NMARKS]; | |
692 | 2375 #ifdef FEAT_VISUAL |
2376 visualinfo_T visualinfo; | |
2377 #endif | |
7 | 2378 int empty_buffer; /* buffer became empty */ |
758 | 2379 u_header_T *curhead = curbuf->b_u_curhead; |
7 | 2380 |
2288 | 2381 #ifdef FEAT_AUTOCMD |
2382 /* Don't want autocommands using the undo structures here, they are | |
2383 * invalid till the end. */ | |
2384 block_autocmds(); | |
2385 #endif | |
2386 | |
1415 | 2387 #ifdef U_DEBUG |
2388 u_check(FALSE); | |
2389 #endif | |
758 | 2390 old_flags = curhead->uh_flags; |
7 | 2391 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) + |
2392 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
2393 setpcmark(); | |
2394 | |
2395 /* | |
2396 * save marks before undo/redo | |
2397 */ | |
2398 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); | |
692 | 2399 #ifdef FEAT_VISUAL |
2400 visualinfo = curbuf->b_visual; | |
2401 #endif | |
7 | 2402 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count; |
2403 curbuf->b_op_start.col = 0; | |
2404 curbuf->b_op_end.lnum = 0; | |
2405 curbuf->b_op_end.col = 0; | |
2406 | |
758 | 2407 for (uep = curhead->uh_entry; uep != NULL; uep = nuep) |
7 | 2408 { |
2409 top = uep->ue_top; | |
2410 bot = uep->ue_bot; | |
2411 if (bot == 0) | |
2412 bot = curbuf->b_ml.ml_line_count + 1; | |
2413 if (top > curbuf->b_ml.ml_line_count || top >= bot | |
2414 || bot > curbuf->b_ml.ml_line_count + 1) | |
2415 { | |
2288 | 2416 #ifdef FEAT_AUTOCMD |
2417 unblock_autocmds(); | |
2418 #endif | |
7 | 2419 EMSG(_("E438: u_undo: line numbers wrong")); |
2420 changed(); /* don't want UNCHANGED now */ | |
2421 return; | |
2422 } | |
2423 | |
2424 oldsize = bot - top - 1; /* number of lines before undo */ | |
2425 newsize = uep->ue_size; /* number of lines after undo */ | |
2426 | |
2427 if (top < newlnum) | |
2428 { | |
2429 /* If the saved cursor is somewhere in this undo block, move it to | |
2430 * the remembered position. Makes "gwap" put the cursor back | |
2431 * where it was. */ | |
758 | 2432 lnum = curhead->uh_cursor.lnum; |
7 | 2433 if (lnum >= top && lnum <= top + newsize + 1) |
2434 { | |
758 | 2435 curwin->w_cursor = curhead->uh_cursor; |
7 | 2436 newlnum = curwin->w_cursor.lnum - 1; |
2437 } | |
2438 else | |
2439 { | |
2440 /* Use the first line that actually changed. Avoids that | |
2441 * undoing auto-formatting puts the cursor in the previous | |
2442 * line. */ | |
2443 for (i = 0; i < newsize && i < oldsize; ++i) | |
2444 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0) | |
2445 break; | |
2446 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL) | |
2447 { | |
2448 newlnum = top; | |
2449 curwin->w_cursor.lnum = newlnum + 1; | |
2450 } | |
2451 else if (i < newsize) | |
2452 { | |
2453 newlnum = top + i; | |
2454 curwin->w_cursor.lnum = newlnum + 1; | |
2455 } | |
2456 } | |
2457 } | |
2458 | |
2459 empty_buffer = FALSE; | |
2460 | |
2461 /* delete the lines between top and bot and save them in newarray */ | |
168 | 2462 if (oldsize > 0) |
7 | 2463 { |
168 | 2464 if ((newarray = (char_u **)U_ALLOC_LINE( |
2230
290ee42cae85
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Bram Moolenaar <bram@vim.org>
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2229
diff
changeset
|
2465 sizeof(char_u *) * oldsize)) == NULL) |
7 | 2466 { |
2467 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize)); | |
2468 /* | |
2469 * We have messed up the entry list, repair is impossible. | |
2470 * we have to free the rest of the list. | |
2471 */ | |
2472 while (uep != NULL) | |
2473 { | |
2474 nuep = uep->ue_next; | |
2475 u_freeentry(uep, uep->ue_size); | |
2476 uep = nuep; | |
2477 } | |
2478 break; | |
2479 } | |
2480 /* delete backwards, it goes faster in most cases */ | |
2481 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum) | |
2482 { | |
2483 /* what can we do when we run out of memory? */ | |
2484 if ((newarray[i] = u_save_line(lnum)) == NULL) | |
2485 do_outofmem_msg((long_u)0); | |
2486 /* remember we deleted the last line in the buffer, and a | |
2487 * dummy empty line will be inserted */ | |
2488 if (curbuf->b_ml.ml_line_count == 1) | |
2489 empty_buffer = TRUE; | |
2490 ml_delete(lnum, FALSE); | |
2491 } | |
2492 } | |
414 | 2493 else |
2494 newarray = NULL; | |
7 | 2495 |
2496 /* insert the lines in u_array between top and bot */ | |
2497 if (newsize) | |
2498 { | |
2499 for (lnum = top, i = 0; i < newsize; ++i, ++lnum) | |
2500 { | |
2501 /* | |
2502 * If the file is empty, there is an empty line 1 that we | |
2503 * should get rid of, by replacing it with the new line | |
2504 */ | |
2505 if (empty_buffer && lnum == 0) | |
2506 ml_replace((linenr_T)1, uep->ue_array[i], TRUE); | |
2507 else | |
2508 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE); | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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2229
diff
changeset
|
2509 vim_free(uep->ue_array[i]); |
7 | 2510 } |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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2229
diff
changeset
|
2511 vim_free((char_u *)uep->ue_array); |
7 | 2512 } |
2513 | |
2514 /* adjust marks */ | |
2515 if (oldsize != newsize) | |
2516 { | |
2517 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM, | |
2518 (long)newsize - (long)oldsize); | |
2519 if (curbuf->b_op_start.lnum > top + oldsize) | |
2520 curbuf->b_op_start.lnum += newsize - oldsize; | |
2521 if (curbuf->b_op_end.lnum > top + oldsize) | |
2522 curbuf->b_op_end.lnum += newsize - oldsize; | |
2523 } | |
2524 | |
2525 changed_lines(top + 1, 0, bot, newsize - oldsize); | |
2526 | |
2527 /* set '[ and '] mark */ | |
2528 if (top + 1 < curbuf->b_op_start.lnum) | |
2529 curbuf->b_op_start.lnum = top + 1; | |
2530 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) | |
2531 curbuf->b_op_end.lnum = top + 1; | |
2532 else if (top + newsize > curbuf->b_op_end.lnum) | |
2533 curbuf->b_op_end.lnum = top + newsize; | |
2534 | |
2535 u_newcount += newsize; | |
2536 u_oldcount += oldsize; | |
2537 uep->ue_size = oldsize; | |
2538 uep->ue_array = newarray; | |
2539 uep->ue_bot = top + newsize + 1; | |
2540 | |
2541 /* | |
2542 * insert this entry in front of the new entry list | |
2543 */ | |
2544 nuep = uep->ue_next; | |
2545 uep->ue_next = newlist; | |
2546 newlist = uep; | |
2547 } | |
2548 | |
758 | 2549 curhead->uh_entry = newlist; |
2550 curhead->uh_flags = new_flags; | |
7 | 2551 if ((old_flags & UH_EMPTYBUF) && bufempty()) |
2552 curbuf->b_ml.ml_flags |= ML_EMPTY; | |
2553 if (old_flags & UH_CHANGED) | |
2554 changed(); | |
2555 else | |
33 | 2556 #ifdef FEAT_NETBEANS_INTG |
2557 /* per netbeans undo rules, keep it as modified */ | |
2558 if (!isNetbeansModified(curbuf)) | |
2559 #endif | |
7 | 2560 unchanged(curbuf, FALSE); |
2561 | |
2562 /* | |
2563 * restore marks from before undo/redo | |
2564 */ | |
2565 for (i = 0; i < NMARKS; ++i) | |
758 | 2566 if (curhead->uh_namedm[i].lnum != 0) |
7 | 2567 { |
758 | 2568 curbuf->b_namedm[i] = curhead->uh_namedm[i]; |
2569 curhead->uh_namedm[i] = namedm[i]; | |
7 | 2570 } |
692 | 2571 #ifdef FEAT_VISUAL |
758 | 2572 if (curhead->uh_visual.vi_start.lnum != 0) |
692 | 2573 { |
758 | 2574 curbuf->b_visual = curhead->uh_visual; |
2575 curhead->uh_visual = visualinfo; | |
692 | 2576 } |
2577 #endif | |
7 | 2578 |
2579 /* | |
2580 * If the cursor is only off by one line, put it at the same position as | |
2581 * before starting the change (for the "o" command). | |
2582 * Otherwise the cursor should go to the first undone line. | |
2583 */ | |
758 | 2584 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum |
7 | 2585 && curwin->w_cursor.lnum > 1) |
2586 --curwin->w_cursor.lnum; | |
758 | 2587 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum) |
7 | 2588 { |
758 | 2589 curwin->w_cursor.col = curhead->uh_cursor.col; |
7 | 2590 #ifdef FEAT_VIRTUALEDIT |
758 | 2591 if (virtual_active() && curhead->uh_cursor_vcol >= 0) |
2592 coladvance((colnr_T)curhead->uh_cursor_vcol); | |
7 | 2593 else |
2594 curwin->w_cursor.coladd = 0; | |
2595 #endif | |
2596 } | |
2597 else if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count) | |
2598 beginline(BL_SOL | BL_FIX); | |
2599 else | |
2600 { | |
2601 /* We get here with the current cursor line being past the end (eg | |
2602 * after adding lines at the end of the file, and then undoing it). | |
2603 * check_cursor() will move the cursor to the last line. Move it to | |
2604 * the first column here. */ | |
2605 curwin->w_cursor.col = 0; | |
2606 #ifdef FEAT_VIRTUALEDIT | |
2607 curwin->w_cursor.coladd = 0; | |
2608 #endif | |
2609 } | |
2610 | |
2611 /* Make sure the cursor is on an existing line and column. */ | |
2612 check_cursor(); | |
758 | 2613 |
2614 /* Remember where we are for "g-" and ":earlier 10s". */ | |
2615 curbuf->b_u_seq_cur = curhead->uh_seq; | |
777 | 2616 if (undo) |
2617 /* We are below the previous undo. However, to make ":earlier 1s" | |
2618 * work we compute this as being just above the just undone change. */ | |
2619 --curbuf->b_u_seq_cur; | |
2620 | |
2281
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Added ":earlier 1f" and ":later 1f".
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diff
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|
2621 /* Remember where we are for ":earlier 1f" and ":later 1f". */ |
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Added ":earlier 1f" and ":later 1f".
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diff
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|
2622 if (curhead->uh_save_nr != 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2623 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2624 if (undo) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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|
2625 curbuf->b_u_save_nr_cur = curhead->uh_save_nr - 1; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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diff
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|
2626 else |
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Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2627 curbuf->b_u_save_nr_cur = curhead->uh_save_nr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
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|
2628 } |
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Added ":earlier 1f" and ":later 1f".
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diff
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|
2629 |
777 | 2630 /* The timestamp can be the same for multiple changes, just use the one of |
2631 * the undone/redone change. */ | |
2280
941ff1cd317a
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|
2632 curbuf->b_u_time_cur = curhead->uh_time; |
2288 | 2633 |
2634 #ifdef FEAT_AUTOCMD | |
2635 unblock_autocmds(); | |
2636 #endif | |
1415 | 2637 #ifdef U_DEBUG |
2638 u_check(FALSE); | |
2639 #endif | |
7 | 2640 } |
2641 | |
2642 /* | |
2643 * If we deleted or added lines, report the number of less/more lines. | |
2644 * Otherwise, report the number of changes (this may be incorrect | |
2645 * in some cases, but it's better than nothing). | |
2646 */ | |
2647 static void | |
798 | 2648 u_undo_end(did_undo, absolute) |
794 | 2649 int did_undo; /* just did an undo */ |
798 | 2650 int absolute; /* used ":undo N" */ |
7 | 2651 { |
944 | 2652 char *msgstr; |
772 | 2653 u_header_T *uhp; |
2654 char_u msgbuf[80]; | |
753 | 2655 |
7 | 2656 #ifdef FEAT_FOLDING |
2657 if ((fdo_flags & FDO_UNDO) && KeyTyped) | |
2658 foldOpenCursor(); | |
2659 #endif | |
753 | 2660 |
2661 if (global_busy /* no messages now, wait until global is finished */ | |
2662 || !messaging()) /* 'lazyredraw' set, don't do messages now */ | |
2663 return; | |
2664 | |
2665 if (curbuf->b_ml.ml_flags & ML_EMPTY) | |
2666 --u_newcount; | |
2667 | |
2668 u_oldcount -= u_newcount; | |
2669 if (u_oldcount == -1) | |
944 | 2670 msgstr = N_("more line"); |
753 | 2671 else if (u_oldcount < 0) |
944 | 2672 msgstr = N_("more lines"); |
753 | 2673 else if (u_oldcount == 1) |
944 | 2674 msgstr = N_("line less"); |
753 | 2675 else if (u_oldcount > 1) |
944 | 2676 msgstr = N_("fewer lines"); |
753 | 2677 else |
2678 { | |
2679 u_oldcount = u_newcount; | |
2680 if (u_newcount == 1) | |
944 | 2681 msgstr = N_("change"); |
753 | 2682 else |
944 | 2683 msgstr = N_("changes"); |
753 | 2684 } |
2685 | |
772 | 2686 if (curbuf->b_u_curhead != NULL) |
794 | 2687 { |
798 | 2688 /* For ":undo N" we prefer a "after #N" message. */ |
2242
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diff
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|
2689 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL) |
798 | 2690 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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diff
changeset
|
2691 uhp = curbuf->b_u_curhead->uh_next.ptr; |
798 | 2692 did_undo = FALSE; |
2693 } | |
2694 else if (did_undo) | |
794 | 2695 uhp = curbuf->b_u_curhead; |
2696 else | |
2242
bc4685345719
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diff
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|
2697 uhp = curbuf->b_u_curhead->uh_next.ptr; |
794 | 2698 } |
753 | 2699 else |
772 | 2700 uhp = curbuf->b_u_newhead; |
753 | 2701 |
772 | 2702 if (uhp == NULL) |
2703 *msgbuf = NUL; | |
2704 else | |
2705 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time); | |
2706 | |
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2707 #ifdef FEAT_CONCEAL |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
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diff
changeset
|
2708 { |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2709 win_T *wp; |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
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2281
diff
changeset
|
2710 |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2711 FOR_ALL_WINDOWS(wp) |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
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diff
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|
2712 { |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2713 if (wp->w_buffer == curbuf && wp->w_p_conceal) |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
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2281
diff
changeset
|
2714 redraw_win_later(wp, NOT_VALID); |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
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2281
diff
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|
2715 } |
a888ed7ba375
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Bram Moolenaar <bram@vim.org>
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diff
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|
2716 } |
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|
2717 #endif |
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diff
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|
2718 |
794 | 2719 smsg((char_u *)_("%ld %s; %s #%ld %s"), |
777 | 2720 u_oldcount < 0 ? -u_oldcount : u_oldcount, |
944 | 2721 _(msgstr), |
794 | 2722 did_undo ? _("before") : _("after"), |
2723 uhp == NULL ? 0L : uhp->uh_seq, | |
2724 msgbuf); | |
7 | 2725 } |
2726 | |
2727 /* | |
2728 * u_sync: stop adding to the current entry list | |
2729 */ | |
2730 void | |
825 | 2731 u_sync(force) |
2732 int force; /* Also sync when no_u_sync is set. */ | |
7 | 2733 { |
825 | 2734 /* Skip it when already synced or syncing is disabled. */ |
2735 if (curbuf->b_u_synced || (!force && no_u_sync > 0)) | |
2736 return; | |
7 | 2737 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) |
2738 if (im_is_preediting()) | |
2739 return; /* XIM is busy, don't break an undo sequence */ | |
2740 #endif | |
2741 if (p_ul < 0) | |
2742 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */ | |
2743 else | |
2744 { | |
2745 u_getbot(); /* compute ue_bot of previous u_save */ | |
2746 curbuf->b_u_curhead = NULL; | |
2747 } | |
2748 } | |
2749 | |
2750 /* | |
772 | 2751 * ":undolist": List the leafs of the undo tree |
2752 */ | |
2753 void | |
2754 ex_undolist(eap) | |
2154
7c8c7c95a865
First step in the Vim 7.3 branch. Changed version numbers.
Bram Moolenaar <bram@zimbu.org>
parents:
1534
diff
changeset
|
2755 exarg_T *eap UNUSED; |
772 | 2756 { |
2757 garray_T ga; | |
2758 u_header_T *uhp; | |
2759 int mark; | |
2760 int nomark; | |
2761 int changes = 1; | |
2762 int i; | |
2763 | |
2764 /* | |
2765 * 1: walk the tree to find all leafs, put the info in "ga". | |
2766 * 2: sort the lines | |
2767 * 3: display the list | |
2768 */ | |
2769 mark = ++lastmark; | |
2770 nomark = ++lastmark; | |
2771 ga_init2(&ga, (int)sizeof(char *), 20); | |
2772 | |
2773 uhp = curbuf->b_u_oldhead; | |
2774 while (uhp != NULL) | |
2775 { | |
2242
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diff
changeset
|
2776 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark |
777 | 2777 && uhp->uh_walk != mark) |
772 | 2778 { |
2779 if (ga_grow(&ga, 1) == FAIL) | |
2780 break; | |
2781 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ", | |
2782 uhp->uh_seq, changes); | |
2783 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff), | |
2784 uhp->uh_time); | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2785 if (uhp->uh_save_nr > 0) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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2271
diff
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|
2786 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2787 while (STRLEN(IObuff) < 32) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2788 STRCAT(IObuff, " "); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2789 vim_snprintf_add((char *)IObuff, IOSIZE, |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
2790 " %3ld", uhp->uh_save_nr); |
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2791 } |
772 | 2792 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff); |
2793 } | |
2794 | |
2795 uhp->uh_walk = mark; | |
2796 | |
2797 /* go down in the tree if we haven't been there */ | |
2242
bc4685345719
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|
2798 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
bc4685345719
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Bram Moolenaar <bram@vim.org>
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diff
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|
2799 && uhp->uh_prev.ptr->uh_walk != mark) |
772 | 2800 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2801 uhp = uhp->uh_prev.ptr; |
772 | 2802 ++changes; |
2803 } | |
2804 | |
2805 /* go to alternate branch if we haven't been there */ | |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
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diff
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|
2806 else if (uhp->uh_alt_next.ptr != NULL |
bc4685345719
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diff
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|
2807 && uhp->uh_alt_next.ptr->uh_walk != nomark |
bc4685345719
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|
2808 && uhp->uh_alt_next.ptr->uh_walk != mark) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
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2239
diff
changeset
|
2809 uhp = uhp->uh_alt_next.ptr; |
772 | 2810 |
2811 /* go up in the tree if we haven't been there and we are at the | |
2812 * start of alternate branches */ | |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2813 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
|
2814 && uhp->uh_next.ptr->uh_walk != nomark |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
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diff
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|
2815 && uhp->uh_next.ptr->uh_walk != mark) |
772 | 2816 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2817 uhp = uhp->uh_next.ptr; |
772 | 2818 --changes; |
2819 } | |
2820 | |
2821 else | |
2822 { | |
2823 /* need to backtrack; mark this node as done */ | |
2824 uhp->uh_walk = nomark; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
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diff
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|
2825 if (uhp->uh_alt_prev.ptr != NULL) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2826 uhp = uhp->uh_alt_prev.ptr; |
772 | 2827 else |
2828 { | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2829 uhp = uhp->uh_next.ptr; |
772 | 2830 --changes; |
2831 } | |
2832 } | |
2833 } | |
2834 | |
2835 if (ga.ga_len == 0) | |
2836 MSG(_("Nothing to undo")); | |
2837 else | |
2838 { | |
2839 sort_strings((char_u **)ga.ga_data, ga.ga_len); | |
2840 | |
2841 msg_start(); | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2842 msg_puts_attr((char_u *)_("number changes time saved"), |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
2843 hl_attr(HLF_T)); |
772 | 2844 for (i = 0; i < ga.ga_len && !got_int; ++i) |
2845 { | |
2846 msg_putchar('\n'); | |
2847 if (got_int) | |
2848 break; | |
2849 msg_puts(((char_u **)ga.ga_data)[i]); | |
2850 } | |
2851 msg_end(); | |
2852 | |
2853 ga_clear_strings(&ga); | |
2854 } | |
2855 } | |
2856 | |
2857 /* | |
2858 * Put the timestamp of an undo header in "buf[buflen]" in a nice format. | |
2859 */ | |
2860 static void | |
2861 u_add_time(buf, buflen, tt) | |
2862 char_u *buf; | |
2863 size_t buflen; | |
2864 time_t tt; | |
2865 { | |
2866 #ifdef HAVE_STRFTIME | |
2867 struct tm *curtime; | |
2868 | |
2869 if (time(NULL) - tt >= 100) | |
2870 { | |
2871 curtime = localtime(&tt); | |
810 | 2872 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime); |
772 | 2873 } |
2874 else | |
2875 #endif | |
835 | 2876 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"), |
772 | 2877 (long)(time(NULL) - tt)); |
2878 } | |
2879 | |
2880 /* | |
697 | 2881 * ":undojoin": continue adding to the last entry list |
2882 */ | |
2883 void | |
2884 ex_undojoin(eap) | |
2154
7c8c7c95a865
First step in the Vim 7.3 branch. Changed version numbers.
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diff
changeset
|
2885 exarg_T *eap UNUSED; |
697 | 2886 { |
839 | 2887 if (curbuf->b_u_newhead == NULL) |
2888 return; /* nothing changed before */ | |
2889 if (curbuf->b_u_curhead != NULL) | |
2890 { | |
2891 EMSG(_("E790: undojoin is not allowed after undo")); | |
2892 return; | |
2893 } | |
697 | 2894 if (!curbuf->b_u_synced) |
2895 return; /* already unsynced */ | |
2896 if (p_ul < 0) | |
2897 return; /* no entries, nothing to do */ | |
2898 else | |
2899 { | |
2900 /* Go back to the last entry */ | |
2901 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
2902 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */ | |
2903 } | |
2904 } | |
2905 | |
2906 /* | |
7 | 2907 * Called after writing the file and setting b_changed to FALSE. |
2908 * Now an undo means that the buffer is modified. | |
2909 */ | |
2910 void | |
2911 u_unchanged(buf) | |
2912 buf_T *buf; | |
2913 { | |
758 | 2914 u_unch_branch(buf->b_u_oldhead); |
2915 buf->b_did_warn = FALSE; | |
2916 } | |
2917 | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
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|
2918 /* |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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diff
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|
2919 * Increase the write count, store it in the last undo header, what would be |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2920 * used for "u". |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2921 */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2922 void |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2923 u_update_save_nr(buf) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2924 buf_T *buf; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2925 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2926 u_header_T *uhp; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2927 |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2928 ++buf->b_u_save_nr_last; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2929 buf->b_u_save_nr_cur = buf->b_u_save_nr_last; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2930 uhp = buf->b_u_curhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2931 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2932 uhp = uhp->uh_next.ptr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2933 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2934 uhp = buf->b_u_newhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2935 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2936 uhp->uh_save_nr = buf->b_u_save_nr_last; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2937 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2938 |
758 | 2939 static void |
2940 u_unch_branch(uhp) | |
2941 u_header_T *uhp; | |
2942 { | |
753 | 2943 u_header_T *uh; |
7 | 2944 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2945 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr) |
758 | 2946 { |
7 | 2947 uh->uh_flags |= UH_CHANGED; |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2948 if (uh->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
|
2949 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */ |
758 | 2950 } |
7 | 2951 } |
2952 | |
2953 /* | |
2954 * Get pointer to last added entry. | |
2955 * If it's not valid, give an error message and return NULL. | |
2956 */ | |
2957 static u_entry_T * | |
2958 u_get_headentry() | |
2959 { | |
2960 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL) | |
2961 { | |
2962 EMSG(_("E439: undo list corrupt")); | |
2963 return NULL; | |
2964 } | |
2965 return curbuf->b_u_newhead->uh_entry; | |
2966 } | |
2967 | |
2968 /* | |
2969 * u_getbot(): compute the line number of the previous u_save | |
2970 * It is called only when b_u_synced is FALSE. | |
2971 */ | |
2972 static void | |
2973 u_getbot() | |
2974 { | |
2975 u_entry_T *uep; | |
2976 linenr_T extra; | |
2977 | |
2978 uep = u_get_headentry(); /* check for corrupt undo list */ | |
2979 if (uep == NULL) | |
2980 return; | |
2981 | |
2982 uep = curbuf->b_u_newhead->uh_getbot_entry; | |
2983 if (uep != NULL) | |
2984 { | |
2985 /* | |
2986 * the new ue_bot is computed from the number of lines that has been | |
2987 * inserted (0 - deleted) since calling u_save. This is equal to the | |
2988 * old line count subtracted from the current line count. | |
2989 */ | |
2990 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount; | |
2991 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra; | |
2992 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count) | |
2993 { | |
2994 EMSG(_("E440: undo line missing")); | |
2995 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will | |
2996 * get all the old lines back | |
2997 * without deleting the current | |
2998 * ones */ | |
2999 } | |
3000 | |
3001 curbuf->b_u_newhead->uh_getbot_entry = NULL; | |
3002 } | |
3003 | |
3004 curbuf->b_u_synced = TRUE; | |
3005 } | |
3006 | |
3007 /* | |
1415 | 3008 * Free one header "uhp" and its entry list and adjust the pointers. |
7 | 3009 */ |
3010 static void | |
758 | 3011 u_freeheader(buf, uhp, uhpp) |
168 | 3012 buf_T *buf; |
753 | 3013 u_header_T *uhp; |
3014 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
7 | 3015 { |
1415 | 3016 u_header_T *uhap; |
3017 | |
753 | 3018 /* When there is an alternate redo list free that branch completely, |
3019 * because we can never go there. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3020 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
|
3021 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp); |
7 | 3022 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3023 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
|
3024 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
7 | 3025 |
753 | 3026 /* Update the links in the list to remove the header. */ |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3027 if (uhp->uh_next.ptr == NULL) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3028 buf->b_u_oldhead = uhp->uh_prev.ptr; |
7 | 3029 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3030 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr; |
7 | 3031 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3032 if (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
|
3033 buf->b_u_newhead = uhp->uh_next.ptr; |
7 | 3034 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3035 for (uhap = uhp->uh_prev.ptr; uhap != NULL; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3036 uhap = uhap->uh_alt_next.ptr) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3037 uhap->uh_next.ptr = uhp->uh_next.ptr; |
7 | 3038 |
753 | 3039 u_freeentries(buf, uhp, uhpp); |
3040 } | |
3041 | |
3042 /* | |
758 | 3043 * Free an alternate branch and any following alternate branches. |
753 | 3044 */ |
3045 static void | |
3046 u_freebranch(buf, uhp, uhpp) | |
3047 buf_T *buf; | |
3048 u_header_T *uhp; | |
3049 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
3050 { | |
3051 u_header_T *tofree, *next; | |
3052 | |
1440 | 3053 /* If this is the top branch we may need to use u_freeheader() to update |
3054 * all the pointers. */ | |
3055 if (uhp == buf->b_u_oldhead) | |
3056 { | |
3057 u_freeheader(buf, uhp, uhpp); | |
3058 return; | |
3059 } | |
3060 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3061 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
|
3062 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
753 | 3063 |
3064 next = uhp; | |
3065 while (next != NULL) | |
3066 { | |
3067 tofree = next; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3068 if (tofree->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
|
3069 u_freebranch(buf, tofree->uh_alt_next.ptr, uhpp); /* recursive */ |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3070 next = tofree->uh_prev.ptr; |
753 | 3071 u_freeentries(buf, tofree, uhpp); |
3072 } | |
3073 } | |
3074 | |
3075 /* | |
3076 * Free all the undo entries for one header and the header itself. | |
3077 * This means that "uhp" is invalid when returning. | |
3078 */ | |
3079 static void | |
3080 u_freeentries(buf, uhp, uhpp) | |
3081 buf_T *buf; | |
3082 u_header_T *uhp; | |
3083 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
3084 { | |
3085 u_entry_T *uep, *nuep; | |
3086 | |
3087 /* Check for pointers to the header that become invalid now. */ | |
3088 if (buf->b_u_curhead == uhp) | |
3089 buf->b_u_curhead = NULL; | |
1415 | 3090 if (buf->b_u_newhead == uhp) |
3091 buf->b_u_newhead = NULL; /* freeing the newest entry */ | |
753 | 3092 if (uhpp != NULL && uhp == *uhpp) |
3093 *uhpp = NULL; | |
3094 | |
3095 for (uep = uhp->uh_entry; uep != NULL; uep = nuep) | |
3096 { | |
3097 nuep = uep->ue_next; | |
3098 u_freeentry(uep, uep->ue_size); | |
3099 } | |
3100 | |
1415 | 3101 #ifdef U_DEBUG |
3102 uhp->uh_magic = 0; | |
3103 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3104 vim_free((char_u *)uhp); |
168 | 3105 --buf->b_u_numhead; |
7 | 3106 } |
3107 | |
3108 /* | |
3109 * free entry 'uep' and 'n' lines in uep->ue_array[] | |
3110 */ | |
3111 static void | |
3112 u_freeentry(uep, n) | |
3113 u_entry_T *uep; | |
3114 long n; | |
3115 { | |
414 | 3116 while (n > 0) |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3117 vim_free(uep->ue_array[--n]); |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3118 vim_free((char_u *)uep->ue_array); |
1415 | 3119 #ifdef U_DEBUG |
3120 uep->ue_magic = 0; | |
3121 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3122 vim_free((char_u *)uep); |
7 | 3123 } |
3124 | |
3125 /* | |
3126 * invalidate the undo buffer; called when storage has already been released | |
3127 */ | |
3128 void | |
3129 u_clearall(buf) | |
3130 buf_T *buf; | |
3131 { | |
3132 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL; | |
3133 buf->b_u_synced = TRUE; | |
3134 buf->b_u_numhead = 0; | |
3135 buf->b_u_line_ptr = NULL; | |
3136 buf->b_u_line_lnum = 0; | |
3137 } | |
3138 | |
3139 /* | |
3140 * save the line "lnum" for the "U" command | |
3141 */ | |
3142 void | |
3143 u_saveline(lnum) | |
3144 linenr_T lnum; | |
3145 { | |
3146 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */ | |
3147 return; | |
356 | 3148 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */ |
7 | 3149 return; |
3150 u_clearline(); | |
3151 curbuf->b_u_line_lnum = lnum; | |
3152 if (curwin->w_cursor.lnum == lnum) | |
3153 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3154 else | |
3155 curbuf->b_u_line_colnr = 0; | |
3156 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL) | |
3157 do_outofmem_msg((long_u)0); | |
3158 } | |
3159 | |
3160 /* | |
3161 * clear the line saved for the "U" command | |
3162 * (this is used externally for crossing a line while in insert mode) | |
3163 */ | |
3164 void | |
3165 u_clearline() | |
3166 { | |
3167 if (curbuf->b_u_line_ptr != NULL) | |
3168 { | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3169 vim_free(curbuf->b_u_line_ptr); |
7 | 3170 curbuf->b_u_line_ptr = NULL; |
3171 curbuf->b_u_line_lnum = 0; | |
3172 } | |
3173 } | |
3174 | |
3175 /* | |
3176 * Implementation of the "U" command. | |
3177 * Differentiation from vi: "U" can be undone with the next "U". | |
3178 * We also allow the cursor to be in another line. | |
2289
3331756e4232
Make synstack() work on the character just after the end of the line.
Bram Moolenaar <bram@vim.org>
parents:
2288
diff
changeset
|
3179 * Careful: may trigger autocommands that reload the buffer. |
7 | 3180 */ |
3181 void | |
3182 u_undoline() | |
3183 { | |
3184 colnr_T t; | |
3185 char_u *oldp; | |
3186 | |
3187 if (undo_off) | |
3188 return; | |
3189 | |
1534 | 3190 if (curbuf->b_u_line_ptr == NULL |
3191 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count) | |
7 | 3192 { |
3193 beep_flush(); | |
3194 return; | |
3195 } | |
1534 | 3196 |
3197 /* first save the line for the 'u' command */ | |
7 | 3198 if (u_savecommon(curbuf->b_u_line_lnum - 1, |
3199 curbuf->b_u_line_lnum + 1, (linenr_T)0) == FAIL) | |
3200 return; | |
3201 oldp = u_save_line(curbuf->b_u_line_lnum); | |
3202 if (oldp == NULL) | |
3203 { | |
3204 do_outofmem_msg((long_u)0); | |
3205 return; | |
3206 } | |
3207 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE); | |
3208 changed_bytes(curbuf->b_u_line_lnum, 0); | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3209 vim_free(curbuf->b_u_line_ptr); |
7 | 3210 curbuf->b_u_line_ptr = oldp; |
3211 | |
3212 t = curbuf->b_u_line_colnr; | |
3213 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum) | |
3214 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3215 curwin->w_cursor.col = t; | |
3216 curwin->w_cursor.lnum = curbuf->b_u_line_lnum; | |
1534 | 3217 check_cursor_col(); |
7 | 3218 } |
3219 | |
3220 /* | |
168 | 3221 * Free all allocated memory blocks for the buffer 'buf'. |
3222 */ | |
3223 void | |
3224 u_blockfree(buf) | |
3225 buf_T *buf; | |
3226 { | |
753 | 3227 while (buf->b_u_oldhead != NULL) |
758 | 3228 u_freeheader(buf, buf->b_u_oldhead, NULL); |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3229 vim_free(buf->b_u_line_ptr); |
7 | 3230 } |
3231 | |
3232 /* | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3233 * u_save_line(): allocate memory and copy line 'lnum' into it. |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3234 * Returns NULL when out of memory. |
7 | 3235 */ |
3236 static char_u * | |
3237 u_save_line(lnum) | |
3238 linenr_T lnum; | |
3239 { | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3240 return vim_strsave(ml_get(lnum)); |
7 | 3241 } |
3242 | |
3243 /* | |
3244 * Check if the 'modified' flag is set, or 'ff' has changed (only need to | |
3245 * check the first character, because it can only be "dos", "unix" or "mac"). | |
3246 * "nofile" and "scratch" type buffers are considered to always be unchanged. | |
3247 */ | |
3248 int | |
3249 bufIsChanged(buf) | |
3250 buf_T *buf; | |
3251 { | |
3252 return | |
3253 #ifdef FEAT_QUICKFIX | |
3254 !bt_dontwrite(buf) && | |
3255 #endif | |
3256 (buf->b_changed || file_ff_differs(buf)); | |
3257 } | |
3258 | |
3259 int | |
3260 curbufIsChanged() | |
3261 { | |
3262 return | |
3263 #ifdef FEAT_QUICKFIX | |
3264 !bt_dontwrite(curbuf) && | |
3265 #endif | |
3266 (curbuf->b_changed || file_ff_differs(curbuf)); | |
3267 } | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3268 |
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3269 #if defined(FEAT_EVAL) || defined(PROTO) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3270 /* |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3271 * For undotree(): Append the list of undo blocks at "first_uhp" to "list". |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3272 * Recursive. |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3273 */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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3274 void |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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3275 u_eval_tree(first_uhp, list) |
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3276 u_header_T *first_uhp; |
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Add file save counter to undo information. Add undotree() function.
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3277 list_T *list; |
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Bram Moolenaar <bram@vim.org>
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3278 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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3279 u_header_T *uhp = first_uhp; |
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3280 dict_T *dict; |
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Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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3281 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
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3282 while (uhp != NULL) |
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Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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3283 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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3284 dict = dict_alloc(); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
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3285 if (dict == NULL) |
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Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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3286 return; |
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Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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3287 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL); |
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
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3288 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL); |
2280
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3289 if (uhp == curbuf->b_u_newhead) |
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3290 dict_add_nr_str(dict, "newhead", 1, NULL); |
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Bram Moolenaar <bram@vim.org>
parents:
2271
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3291 if (uhp == curbuf->b_u_curhead) |
941ff1cd317a
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parents:
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3292 dict_add_nr_str(dict, "curhead", 1, NULL); |
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Add file save counter to undo information. Add undotree() function.
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parents:
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3293 if (uhp->uh_save_nr > 0) |
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Add file save counter to undo information. Add undotree() function.
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parents:
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3294 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL); |
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Add file save counter to undo information. Add undotree() function.
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parents:
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3295 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
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3296 if (uhp->uh_alt_next.ptr != NULL) |
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3297 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
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3298 list_T *alt_list = list_alloc(); |
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3299 |
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parents:
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3300 if (alt_list != NULL) |
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Bram Moolenaar <bram@vim.org>
parents:
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3301 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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3302 /* Recursive call to add alternate undo tree. */ |
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3303 u_eval_tree(uhp->uh_alt_next.ptr, alt_list); |
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3304 dict_add_list(dict, "alt", alt_list); |
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3305 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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3306 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
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3307 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3308 list_append_dict(list, dict); |
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
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3309 uhp = uhp->uh_prev.ptr; |
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Bram Moolenaar <bram@vim.org>
parents:
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3310 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
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|
3311 } |
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
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3312 #endif |