Mercurial > vim
annotate src/undo.c @ 6122:18ac55444b37 v7.4.399
updated for version 7.4.399
Problem: Encryption implementation is messy. Blowfish encryption has a
weakness.
Solution: Refactor the encryption, store the state in an allocated struct
instead of using a save/restore mechanism. Introduce the
"blowfish2" method, which does not have the weakness and encrypts
the whole undo file. (largely by David Leadbeater)
author | Bram Moolenaar <bram@vim.org> |
---|---|
date | Sun, 10 Aug 2014 13:38:34 +0200 |
parents | 410ef4f1a3d2 |
children | 3aa37ad2c4ed |
rev | line source |
---|---|
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 | |
6122 | 84 /* Size of buffer used for encryption. */ |
85 #define CRYPT_BUF_SIZE 8192 | |
86 | |
7 | 87 #include "vim.h" |
88 | |
6122 | 89 /* Structure passed around between functions. |
90 * Avoids passing cryptstate_T when encryption not available. */ | |
91 typedef struct { | |
92 buf_T *bi_buf; | |
93 FILE *bi_fp; | |
94 #ifdef FEAT_CRYPT | |
95 cryptstate_T *bi_state; | |
96 char_u *bi_buffer; /* CRYPT_BUF_SIZE, NULL when not buffering */ | |
97 size_t bi_used; /* bytes written to/read from bi_buffer */ | |
98 size_t bi_avail; /* bytes available in bi_buffer */ | |
99 #endif | |
100 } bufinfo_T; | |
101 | |
102 | |
5446 | 103 static long get_undolevel __ARGS((void)); |
758 | 104 static void u_unch_branch __ARGS((u_header_T *uhp)); |
7 | 105 static u_entry_T *u_get_headentry __ARGS((void)); |
106 static void u_getbot __ARGS((void)); | |
107 static void u_doit __ARGS((int count)); | |
777 | 108 static void u_undoredo __ARGS((int undo)); |
798 | 109 static void u_undo_end __ARGS((int did_undo, int absolute)); |
772 | 110 static void u_add_time __ARGS((char_u *buf, size_t buflen, time_t tt)); |
758 | 111 static void u_freeheader __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
753 | 112 static void u_freebranch __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
113 static void u_freeentries __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); | |
7 | 114 static void u_freeentry __ARGS((u_entry_T *, long)); |
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115 #ifdef FEAT_PERSISTENT_UNDO |
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116 static void corruption_error __ARGS((char *mesg, char_u *file_name)); |
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117 static void u_free_uhp __ARGS((u_header_T *uhp)); |
6122 | 118 static int undo_write __ARGS((bufinfo_T *bi, char_u *ptr, size_t len)); |
119 static int undo_flush __ARGS((bufinfo_T *bi)); | |
120 static int fwrite_crypt __ARGS((bufinfo_T *bi, char_u *ptr, size_t len)); | |
121 static int undo_write_bytes __ARGS((bufinfo_T *bi, long_u nr, int len)); | |
122 static void put_header_ptr __ARGS((bufinfo_T *bi, u_header_T *uhp)); | |
123 static int undo_read_4c __ARGS((bufinfo_T *bi)); | |
124 static int undo_read_2c __ARGS((bufinfo_T *bi)); | |
125 static int undo_read_byte __ARGS((bufinfo_T *bi)); | |
126 static time_t undo_read_time __ARGS((bufinfo_T *bi)); | |
127 static int undo_read __ARGS((bufinfo_T *bi, char_u *buffer, size_t size)); | |
128 static char_u *read_string_decrypt __ARGS((bufinfo_T *bi, int len)); | |
129 static int serialize_header __ARGS((bufinfo_T *bi, char_u *hash)); | |
130 static int serialize_uhp __ARGS((bufinfo_T *bi, u_header_T *uhp)); | |
131 static u_header_T *unserialize_uhp __ARGS((bufinfo_T *bi, char_u *file_name)); | |
132 static int serialize_uep __ARGS((bufinfo_T *bi, u_entry_T *uep)); | |
133 static u_entry_T *unserialize_uep __ARGS((bufinfo_T *bi, int *error, char_u *file_name)); | |
134 static void serialize_pos __ARGS((bufinfo_T *bi, pos_T pos)); | |
135 static void unserialize_pos __ARGS((bufinfo_T *bi, pos_T *pos)); | |
136 static void serialize_visualinfo __ARGS((bufinfo_T *bi, visualinfo_T *info)); | |
137 static void unserialize_visualinfo __ARGS((bufinfo_T *bi, visualinfo_T *info)); | |
168 | 138 #endif |
7 | 139 |
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140 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE) |
7 | 141 static char_u *u_save_line __ARGS((linenr_T)); |
142 | |
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143 /* used in undo_end() to report number of added and deleted lines */ |
7 | 144 static long u_newcount, u_oldcount; |
145 | |
146 /* | |
147 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember | |
148 * the action that "u" should do. | |
149 */ | |
150 static int undo_undoes = FALSE; | |
151 | |
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152 static int lastmark = 0; |
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153 |
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154 #if defined(U_DEBUG) || defined(PROTO) |
1415 | 155 /* |
156 * Check the undo structures for being valid. Print a warning when something | |
157 * looks wrong. | |
158 */ | |
159 static int seen_b_u_curhead; | |
160 static int seen_b_u_newhead; | |
161 static int header_count; | |
162 | |
163 static void | |
164 u_check_tree(u_header_T *uhp, | |
165 u_header_T *exp_uh_next, | |
166 u_header_T *exp_uh_alt_prev) | |
167 { | |
168 u_entry_T *uep; | |
169 | |
170 if (uhp == NULL) | |
171 return; | |
172 ++header_count; | |
173 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1) | |
174 { | |
175 EMSG("b_u_curhead found twice (looping?)"); | |
176 return; | |
177 } | |
178 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1) | |
179 { | |
180 EMSG("b_u_newhead found twice (looping?)"); | |
181 return; | |
182 } | |
183 | |
184 if (uhp->uh_magic != UH_MAGIC) | |
185 EMSG("uh_magic wrong (may be using freed memory)"); | |
186 else | |
187 { | |
188 /* Check pointers back are correct. */ | |
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189 if (uhp->uh_next.ptr != exp_uh_next) |
1415 | 190 { |
191 EMSG("uh_next wrong"); | |
192 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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193 exp_uh_next, uhp->uh_next.ptr); |
1415 | 194 } |
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195 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev) |
1415 | 196 { |
197 EMSG("uh_alt_prev wrong"); | |
198 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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199 exp_uh_alt_prev, uhp->uh_alt_prev.ptr); |
1415 | 200 } |
201 | |
202 /* Check the undo tree at this header. */ | |
203 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) | |
204 { | |
205 if (uep->ue_magic != UE_MAGIC) | |
206 { | |
207 EMSG("ue_magic wrong (may be using freed memory)"); | |
208 break; | |
209 } | |
210 } | |
211 | |
212 /* Check the next alt tree. */ | |
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213 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp); |
1415 | 214 |
215 /* Check the next header in this branch. */ | |
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216 u_check_tree(uhp->uh_prev.ptr, uhp, NULL); |
1415 | 217 } |
218 } | |
219 | |
2189 | 220 static void |
1415 | 221 u_check(int newhead_may_be_NULL) |
222 { | |
223 seen_b_u_newhead = 0; | |
224 seen_b_u_curhead = 0; | |
225 header_count = 0; | |
226 | |
227 u_check_tree(curbuf->b_u_oldhead, NULL, NULL); | |
228 | |
229 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL | |
230 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL)) | |
231 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead); | |
232 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0) | |
233 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead); | |
234 if (header_count != curbuf->b_u_numhead) | |
235 { | |
236 EMSG("b_u_numhead invalid"); | |
237 smsg((char_u *)"expected: %ld, actual: %ld", | |
238 (long)header_count, (long)curbuf->b_u_numhead); | |
239 } | |
240 } | |
241 #endif | |
242 | |
7 | 243 /* |
344 | 244 * Save the current line for both the "u" and "U" command. |
4303 | 245 * Careful: may trigger autocommands that reload the buffer. |
344 | 246 * Returns OK or FAIL. |
7 | 247 */ |
248 int | |
249 u_save_cursor() | |
250 { | |
251 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1), | |
252 (linenr_T)(curwin->w_cursor.lnum + 1))); | |
253 } | |
254 | |
255 /* | |
256 * Save the lines between "top" and "bot" for both the "u" and "U" command. | |
257 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1. | |
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258 * Careful: may trigger autocommands that reload the buffer. |
7 | 259 * Returns FAIL when lines could not be saved, OK otherwise. |
260 */ | |
261 int | |
262 u_save(top, bot) | |
263 linenr_T top, bot; | |
264 { | |
265 if (undo_off) | |
266 return OK; | |
267 | |
4303 | 268 if (top > curbuf->b_ml.ml_line_count |
269 || top >= bot | |
270 || bot > curbuf->b_ml.ml_line_count + 1) | |
7 | 271 return FALSE; /* rely on caller to do error messages */ |
272 | |
273 if (top + 2 == bot) | |
274 u_saveline((linenr_T)(top + 1)); | |
275 | |
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276 return (u_savecommon(top, bot, (linenr_T)0, FALSE)); |
7 | 277 } |
278 | |
279 /* | |
2181 | 280 * Save the line "lnum" (used by ":s" and "~" command). |
7 | 281 * The line is replaced, so the new bottom line is lnum + 1. |
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282 * Careful: may trigger autocommands that reload the buffer. |
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283 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 284 */ |
285 int | |
286 u_savesub(lnum) | |
287 linenr_T lnum; | |
288 { | |
289 if (undo_off) | |
290 return OK; | |
291 | |
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292 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE)); |
7 | 293 } |
294 | |
295 /* | |
2181 | 296 * A new line is inserted before line "lnum" (used by :s command). |
7 | 297 * The line is inserted, so the new bottom line is lnum + 1. |
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298 * Careful: may trigger autocommands that reload the buffer. |
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299 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 300 */ |
301 int | |
302 u_inssub(lnum) | |
303 linenr_T lnum; | |
304 { | |
305 if (undo_off) | |
306 return OK; | |
307 | |
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308 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE)); |
7 | 309 } |
310 | |
311 /* | |
2181 | 312 * Save the lines "lnum" - "lnum" + nlines (used by delete command). |
7 | 313 * The lines are deleted, so the new bottom line is lnum, unless the buffer |
314 * becomes empty. | |
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315 * Careful: may trigger autocommands that reload the buffer. |
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316 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 317 */ |
318 int | |
319 u_savedel(lnum, nlines) | |
320 linenr_T lnum; | |
321 long nlines; | |
322 { | |
323 if (undo_off) | |
324 return OK; | |
325 | |
326 return (u_savecommon(lnum - 1, lnum + nlines, | |
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327 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE)); |
7 | 328 } |
329 | |
632 | 330 /* |
331 * Return TRUE when undo is allowed. Otherwise give an error message and | |
332 * return FALSE. | |
333 */ | |
912 | 334 int |
632 | 335 undo_allowed() |
336 { | |
337 /* Don't allow changes when 'modifiable' is off. */ | |
338 if (!curbuf->b_p_ma) | |
339 { | |
340 EMSG(_(e_modifiable)); | |
341 return FALSE; | |
342 } | |
343 | |
344 #ifdef HAVE_SANDBOX | |
345 /* In the sandbox it's not allowed to change the text. */ | |
346 if (sandbox != 0) | |
347 { | |
348 EMSG(_(e_sandbox)); | |
349 return FALSE; | |
350 } | |
351 #endif | |
352 | |
353 /* Don't allow changes in the buffer while editing the cmdline. The | |
354 * caller of getcmdline() may get confused. */ | |
634 | 355 if (textlock != 0) |
632 | 356 { |
357 EMSG(_(e_secure)); | |
358 return FALSE; | |
359 } | |
360 | |
361 return TRUE; | |
362 } | |
363 | |
2189 | 364 /* |
5446 | 365 * Get the undolevle value for the current buffer. |
366 */ | |
367 static long | |
368 get_undolevel() | |
369 { | |
370 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL) | |
371 return p_ul; | |
372 return curbuf->b_p_ul; | |
373 } | |
374 | |
375 /* | |
2189 | 376 * Common code for various ways to save text before a change. |
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377 * "top" is the line above the first changed line. |
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378 * "bot" is the line below the last changed line. |
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379 * "newbot" is the new bottom line. Use zero when not known. |
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380 * "reload" is TRUE when saving for a buffer reload. |
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381 * Careful: may trigger autocommands that reload the buffer. |
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382 * Returns FAIL when lines could not be saved, OK otherwise. |
2189 | 383 */ |
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384 int |
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385 u_savecommon(top, bot, newbot, reload) |
7 | 386 linenr_T top, bot; |
387 linenr_T newbot; | |
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388 int reload; |
7 | 389 { |
753 | 390 linenr_T lnum; |
391 long i; | |
392 u_header_T *uhp; | |
393 u_header_T *old_curhead; | |
394 u_entry_T *uep; | |
395 u_entry_T *prev_uep; | |
396 long size; | |
7 | 397 |
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398 if (!reload) |
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399 { |
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400 /* When making changes is not allowed return FAIL. It's a crude way |
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401 * to make all change commands fail. */ |
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402 if (!undo_allowed()) |
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403 return FAIL; |
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404 |
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405 #ifdef FEAT_NETBEANS_INTG |
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406 /* |
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407 * Netbeans defines areas that cannot be modified. Bail out here when |
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408 * trying to change text in a guarded area. |
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409 */ |
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410 if (netbeans_active()) |
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411 { |
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412 if (netbeans_is_guarded(top, bot)) |
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413 { |
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414 EMSG(_(e_guarded)); |
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415 return FAIL; |
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416 } |
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417 if (curbuf->b_p_ro) |
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418 { |
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419 EMSG(_(e_nbreadonly)); |
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420 return FAIL; |
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421 } |
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422 } |
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423 #endif |
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424 |
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425 #ifdef FEAT_AUTOCMD |
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426 /* |
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427 * Saving text for undo means we are going to make a change. Give a |
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428 * warning for a read-only file before making the change, so that the |
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429 * FileChangedRO event can replace the buffer with a read-write version |
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430 * (e.g., obtained from a source control system). |
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431 */ |
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432 change_warning(0); |
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433 if (bot > curbuf->b_ml.ml_line_count + 1) |
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434 { |
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435 /* This happens when the FileChangedRO autocommand changes the |
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436 * file in a way it becomes shorter. */ |
5621 | 437 EMSG(_("E881: Line count changed unexpectedly")); |
2394
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438 return FAIL; |
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439 } |
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440 #endif |
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441 } |
7 | 442 |
1415 | 443 #ifdef U_DEBUG |
444 u_check(FALSE); | |
445 #endif | |
7 | 446 |
447 size = bot - top - 1; | |
448 | |
449 /* | |
2189 | 450 * If curbuf->b_u_synced == TRUE make a new header. |
7 | 451 */ |
452 if (curbuf->b_u_synced) | |
453 { | |
454 #ifdef FEAT_JUMPLIST | |
455 /* Need to create new entry in b_changelist. */ | |
456 curbuf->b_new_change = TRUE; | |
457 #endif | |
458 | |
5446 | 459 if (get_undolevel() >= 0) |
753 | 460 { |
461 /* | |
462 * Make a new header entry. Do this first so that we don't mess | |
463 * up the undo info when out of memory. | |
464 */ | |
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465 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
753 | 466 if (uhp == NULL) |
467 goto nomem; | |
1415 | 468 #ifdef U_DEBUG |
469 uhp->uh_magic = UH_MAGIC; | |
470 #endif | |
753 | 471 } |
766 | 472 else |
473 uhp = NULL; | |
753 | 474 |
7 | 475 /* |
758 | 476 * If we undid more than we redid, move the entry lists before and |
477 * including curbuf->b_u_curhead to an alternate branch. | |
7 | 478 */ |
753 | 479 old_curhead = curbuf->b_u_curhead; |
480 if (old_curhead != NULL) | |
481 { | |
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482 curbuf->b_u_newhead = old_curhead->uh_next.ptr; |
753 | 483 curbuf->b_u_curhead = NULL; |
484 } | |
7 | 485 |
486 /* | |
487 * free headers to keep the size right | |
488 */ | |
5446 | 489 while (curbuf->b_u_numhead > get_undolevel() |
490 && curbuf->b_u_oldhead != NULL) | |
753 | 491 { |
758 | 492 u_header_T *uhfree = curbuf->b_u_oldhead; |
753 | 493 |
1415 | 494 if (uhfree == old_curhead) |
495 /* Can't reconnect the branch, delete all of it. */ | |
496 u_freebranch(curbuf, uhfree, &old_curhead); | |
2242
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497 else if (uhfree->uh_alt_next.ptr == NULL) |
1415 | 498 /* There is no branch, only free one header. */ |
758 | 499 u_freeheader(curbuf, uhfree, &old_curhead); |
753 | 500 else |
501 { | |
502 /* Free the oldest alternate branch as a whole. */ | |
2242
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503 while (uhfree->uh_alt_next.ptr != NULL) |
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504 uhfree = uhfree->uh_alt_next.ptr; |
758 | 505 u_freebranch(curbuf, uhfree, &old_curhead); |
753 | 506 } |
1415 | 507 #ifdef U_DEBUG |
508 u_check(TRUE); | |
509 #endif | |
753 | 510 } |
7 | 511 |
766 | 512 if (uhp == NULL) /* no undo at all */ |
7 | 513 { |
753 | 514 if (old_curhead != NULL) |
515 u_freebranch(curbuf, old_curhead, NULL); | |
7 | 516 curbuf->b_u_synced = FALSE; |
517 return OK; | |
518 } | |
519 | |
2242
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520 uhp->uh_prev.ptr = NULL; |
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521 uhp->uh_next.ptr = curbuf->b_u_newhead; |
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522 uhp->uh_alt_next.ptr = old_curhead; |
753 | 523 if (old_curhead != NULL) |
524 { | |
2242
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525 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr; |
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526 if (uhp->uh_alt_prev.ptr != NULL) |
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527 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp; |
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528 old_curhead->uh_alt_prev.ptr = uhp; |
753 | 529 if (curbuf->b_u_oldhead == old_curhead) |
530 curbuf->b_u_oldhead = uhp; | |
531 } | |
1056 | 532 else |
2242
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diff
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533 uhp->uh_alt_prev.ptr = NULL; |
758 | 534 if (curbuf->b_u_newhead != NULL) |
2242
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diff
changeset
|
535 curbuf->b_u_newhead->uh_prev.ptr = uhp; |
758 | 536 |
777 | 537 uhp->uh_seq = ++curbuf->b_u_seq_last; |
538 curbuf->b_u_seq_cur = uhp->uh_seq; | |
758 | 539 uhp->uh_time = time(NULL); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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2271
diff
changeset
|
540 uhp->uh_save_nr = 0; |
941ff1cd317a
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changeset
|
541 curbuf->b_u_time_cur = uhp->uh_time + 1; |
758 | 542 |
753 | 543 uhp->uh_walk = 0; |
7 | 544 uhp->uh_entry = NULL; |
545 uhp->uh_getbot_entry = NULL; | |
546 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */ | |
547 #ifdef FEAT_VIRTUALEDIT | |
548 if (virtual_active() && curwin->w_cursor.coladd > 0) | |
549 uhp->uh_cursor_vcol = getviscol(); | |
550 else | |
551 uhp->uh_cursor_vcol = -1; | |
552 #endif | |
553 | |
554 /* save changed and buffer empty flag for undo */ | |
555 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) + | |
556 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
557 | |
692 | 558 /* save named marks and Visual marks for undo */ |
7 | 559 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); |
692 | 560 uhp->uh_visual = curbuf->b_visual; |
561 | |
7 | 562 curbuf->b_u_newhead = uhp; |
563 if (curbuf->b_u_oldhead == NULL) | |
564 curbuf->b_u_oldhead = uhp; | |
565 ++curbuf->b_u_numhead; | |
566 } | |
567 else | |
568 { | |
5446 | 569 if (get_undolevel() < 0) /* no undo at all */ |
7 | 570 return OK; |
571 | |
572 /* | |
573 * When saving a single line, and it has been saved just before, it | |
574 * doesn't make sense saving it again. Saves a lot of memory when | |
575 * making lots of changes inside the same line. | |
576 * This is only possible if the previous change didn't increase or | |
577 * decrease the number of lines. | |
578 * Check the ten last changes. More doesn't make sense and takes too | |
579 * long. | |
580 */ | |
581 if (size == 1) | |
582 { | |
583 uep = u_get_headentry(); | |
584 prev_uep = NULL; | |
585 for (i = 0; i < 10; ++i) | |
586 { | |
587 if (uep == NULL) | |
588 break; | |
589 | |
590 /* If lines have been inserted/deleted we give up. | |
591 * Also when the line was included in a multi-line save. */ | |
592 if ((curbuf->b_u_newhead->uh_getbot_entry != uep | |
593 ? (uep->ue_top + uep->ue_size + 1 | |
594 != (uep->ue_bot == 0 | |
595 ? curbuf->b_ml.ml_line_count + 1 | |
596 : uep->ue_bot)) | |
597 : uep->ue_lcount != curbuf->b_ml.ml_line_count) | |
598 || (uep->ue_size > 1 | |
599 && top >= uep->ue_top | |
600 && top + 2 <= uep->ue_top + uep->ue_size + 1)) | |
601 break; | |
602 | |
603 /* If it's the same line we can skip saving it again. */ | |
604 if (uep->ue_size == 1 && uep->ue_top == top) | |
605 { | |
606 if (i > 0) | |
607 { | |
608 /* It's not the last entry: get ue_bot for the last | |
609 * entry now. Following deleted/inserted lines go to | |
610 * the re-used entry. */ | |
611 u_getbot(); | |
612 curbuf->b_u_synced = FALSE; | |
613 | |
614 /* Move the found entry to become the last entry. The | |
615 * order of undo/redo doesn't matter for the entries | |
616 * we move it over, since they don't change the line | |
617 * count and don't include this line. It does matter | |
618 * for the found entry if the line count is changed by | |
619 * the executed command. */ | |
620 prev_uep->ue_next = uep->ue_next; | |
621 uep->ue_next = curbuf->b_u_newhead->uh_entry; | |
622 curbuf->b_u_newhead->uh_entry = uep; | |
623 } | |
624 | |
625 /* The executed command may change the line count. */ | |
626 if (newbot != 0) | |
627 uep->ue_bot = newbot; | |
628 else if (bot > curbuf->b_ml.ml_line_count) | |
629 uep->ue_bot = 0; | |
630 else | |
631 { | |
632 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
633 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
634 } | |
635 return OK; | |
636 } | |
637 prev_uep = uep; | |
638 uep = uep->ue_next; | |
639 } | |
640 } | |
641 | |
642 /* find line number for ue_bot for previous u_save() */ | |
643 u_getbot(); | |
644 } | |
645 | |
646 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__) | |
647 /* | |
648 * With Amiga and MSDOS 16 bit we can't handle big undo's, because | |
649 * then u_alloc_line would have to allocate a block larger than 32K | |
650 */ | |
651 if (size >= 8000) | |
652 goto nomem; | |
653 #endif | |
654 | |
655 /* | |
656 * add lines in front of entry list | |
657 */ | |
2230
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658 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
7 | 659 if (uep == NULL) |
660 goto nomem; | |
2215
cccb71c2c5c1
Fix uninit memory read in undo code. Fix uint32_t in proto file.
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2214
diff
changeset
|
661 vim_memset(uep, 0, sizeof(u_entry_T)); |
1415 | 662 #ifdef U_DEBUG |
663 uep->ue_magic = UE_MAGIC; | |
664 #endif | |
7 | 665 |
666 uep->ue_size = size; | |
667 uep->ue_top = top; | |
668 if (newbot != 0) | |
669 uep->ue_bot = newbot; | |
670 /* | |
671 * Use 0 for ue_bot if bot is below last line. | |
672 * Otherwise we have to compute ue_bot later. | |
673 */ | |
674 else if (bot > curbuf->b_ml.ml_line_count) | |
675 uep->ue_bot = 0; | |
676 else | |
677 { | |
678 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
679 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
680 } | |
681 | |
168 | 682 if (size > 0) |
7 | 683 { |
168 | 684 if ((uep->ue_array = (char_u **)U_ALLOC_LINE( |
2230
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Remove old and unused method to allocate memory for undo.
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diff
changeset
|
685 sizeof(char_u *) * size)) == NULL) |
7 | 686 { |
687 u_freeentry(uep, 0L); | |
688 goto nomem; | |
689 } | |
690 for (i = 0, lnum = top + 1; i < size; ++i) | |
691 { | |
481 | 692 fast_breakcheck(); |
693 if (got_int) | |
694 { | |
695 u_freeentry(uep, i); | |
696 return FAIL; | |
697 } | |
7 | 698 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL) |
699 { | |
700 u_freeentry(uep, i); | |
701 goto nomem; | |
702 } | |
703 } | |
704 } | |
359 | 705 else |
706 uep->ue_array = NULL; | |
7 | 707 uep->ue_next = curbuf->b_u_newhead->uh_entry; |
708 curbuf->b_u_newhead->uh_entry = uep; | |
709 curbuf->b_u_synced = FALSE; | |
710 undo_undoes = FALSE; | |
711 | |
1415 | 712 #ifdef U_DEBUG |
713 u_check(FALSE); | |
714 #endif | |
7 | 715 return OK; |
716 | |
717 nomem: | |
718 msg_silent = 0; /* must display the prompt */ | |
719 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE) | |
720 == 'y') | |
721 { | |
722 undo_off = TRUE; /* will be reset when character typed */ | |
723 return OK; | |
724 } | |
725 do_outofmem_msg((long_u)0); | |
726 return FAIL; | |
727 } | |
728 | |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
729 #if defined(FEAT_PERSISTENT_UNDO) || defined(PROTO) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
730 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
731 # define UF_START_MAGIC "Vim\237UnDo\345" /* magic at start of undofile */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
732 # define UF_START_MAGIC_LEN 9 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
733 # define UF_HEADER_MAGIC 0x5fd0 /* magic at start of header */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
734 # 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
|
735 # define UF_ENTRY_MAGIC 0xf518 /* magic at start of entry */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
736 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */ |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
737 # define UF_VERSION 2 /* 2-byte undofile version number */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
738 # define UF_VERSION_CRYPT 0x8002 /* idem, encrypted */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
739 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
740 /* extra fields for header */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
741 # define UF_LAST_SAVE_NR 1 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
742 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
743 /* extra fields for uhp */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
744 # define UHP_SAVE_NR 1 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
745 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
746 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
|
747 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
748 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
749 * Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE]. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
750 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
751 void |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
752 u_compute_hash(hash) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
753 char_u *hash; |
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 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
|
756 linenr_T lnum; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
757 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
758 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
759 sha256_start(&ctx); |
3194 | 760 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) |
2214
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 p = ml_get(lnum); |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
763 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
|
764 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
765 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
|
766 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
767 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
768 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
769 * 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
|
770 * 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
|
771 * 'undodir'. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
772 * 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
|
773 * 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
|
774 */ |
2236
dc2e5ec0500d
Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents:
2235
diff
changeset
|
775 char_u * |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
776 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
|
777 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
|
778 int reading; |
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 char_u *dirp; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
781 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
|
782 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
|
783 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
|
784 int dir_len; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
785 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
786 struct stat st; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
787 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
|
788 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
789 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
|
790 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
791 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
792 if (ffname == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
793 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
794 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
795 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
796 /* 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
|
797 * 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
|
798 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
|
799 ffname = fname_buf; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
800 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
801 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
802 /* 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
|
803 * 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
|
804 dirp = p_udir; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
805 while (*dirp != NUL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
806 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
807 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
|
808 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
|
809 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
810 /* 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
|
811 * "dir/name" -> "dir/.name.un~" */ |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
812 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
|
813 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
|
814 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
815 p = gettail(undo_file_name); |
5704 | 816 #ifdef VMS |
817 /* VMS can not handle more than one dot in the filenames | |
818 * use "dir/name" -> "dir/_un_name" - add _un_ | |
819 * at the beginning to keep the extension */ | |
820 mch_memmove(p + 4, p, STRLEN(p) + 1); | |
821 mch_memmove(p, "_un_", 4); | |
822 | |
823 #else | |
824 /* Use same directory as the ffname, | |
825 * "dir/name" -> "dir/.name.un~" */ | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
826 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
|
827 *p = '.'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
828 STRCAT(p, ".un~"); |
5704 | 829 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
830 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
831 else |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
832 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
833 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
|
834 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
|
835 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
836 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
|
837 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
838 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
|
839 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
|
840 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
841 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
|
842 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
|
843 *p = '%'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
844 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
845 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
|
846 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
847 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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848 |
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849 /* When reading check if the file exists. */ |
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850 if (undo_file_name != NULL && (!reading |
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851 || mch_stat((char *)undo_file_name, &st) >= 0)) |
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852 break; |
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853 vim_free(undo_file_name); |
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854 undo_file_name = NULL; |
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855 } |
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856 |
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857 vim_free(munged_name); |
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858 return undo_file_name; |
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859 } |
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860 |
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861 static void |
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862 corruption_error(mesg, file_name) |
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863 char *mesg; |
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864 char_u *file_name; |
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865 { |
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866 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name); |
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867 } |
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868 |
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869 static void |
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870 u_free_uhp(uhp) |
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871 u_header_T *uhp; |
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872 { |
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873 u_entry_T *nuep; |
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874 u_entry_T *uep; |
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875 |
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876 uep = uhp->uh_entry; |
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877 while (uep != NULL) |
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878 { |
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879 nuep = uep->ue_next; |
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880 u_freeentry(uep, uep->ue_size); |
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881 uep = nuep; |
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882 } |
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883 vim_free(uhp); |
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884 } |
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885 |
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886 /* |
6122 | 887 * Write a sequence of bytes to the undo file. |
888 * Buffers and encrypts as needed. | |
889 * Returns OK or FAIL. | |
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890 */ |
6122 | 891 static int |
892 undo_write(bi, ptr, len) | |
893 bufinfo_T *bi; | |
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894 char_u *ptr; |
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895 size_t len; |
6122 | 896 { |
897 #ifdef FEAT_CRYPT | |
898 if (bi->bi_buffer != NULL) | |
899 { | |
900 size_t len_todo = len; | |
901 char_u *p = ptr; | |
902 | |
903 while (bi->bi_used + len_todo >= CRYPT_BUF_SIZE) | |
904 { | |
905 size_t n = CRYPT_BUF_SIZE - bi->bi_used; | |
906 | |
907 mch_memmove(bi->bi_buffer + bi->bi_used, p, n); | |
908 len_todo -= n; | |
909 p += n; | |
910 bi->bi_used = CRYPT_BUF_SIZE; | |
911 if (undo_flush(bi) == FAIL) | |
912 return FAIL; | |
913 } | |
914 if (len_todo > 0) | |
915 { | |
916 mch_memmove(bi->bi_buffer + bi->bi_used, p, len_todo); | |
917 bi->bi_used += len_todo; | |
918 } | |
919 return OK; | |
920 } | |
921 #endif | |
922 if (fwrite(ptr, len, (size_t)1, bi->bi_fp) != 1) | |
923 return FAIL; | |
924 return OK; | |
925 } | |
926 | |
927 #ifdef FEAT_CRYPT | |
928 static int | |
929 undo_flush(bi) | |
930 bufinfo_T *bi; | |
931 { | |
932 if (bi->bi_used > 0) | |
933 { | |
934 crypt_encode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_used); | |
935 if (fwrite(bi->bi_buffer, bi->bi_used, (size_t)1, bi->bi_fp) != 1) | |
936 return FAIL; | |
937 bi->bi_used = 0; | |
938 } | |
939 return OK; | |
940 } | |
941 #endif | |
942 | |
943 /* | |
944 * Write "ptr[len]" and crypt the bytes when needed. | |
945 * Returns OK or FAIL. | |
946 */ | |
947 static int | |
948 fwrite_crypt(bi, ptr, len) | |
949 bufinfo_T *bi; | |
950 char_u *ptr; | |
951 size_t len; | |
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952 { |
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953 #ifdef FEAT_CRYPT |
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954 char_u *copy; |
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955 char_u small_buf[100]; |
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956 size_t i; |
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957 |
6122 | 958 if (bi->bi_state != NULL && bi->bi_buffer == NULL) |
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959 { |
6122 | 960 /* crypting every piece of text separately */ |
961 if (len < 100) | |
962 copy = small_buf; /* no malloc()/free() for short strings */ | |
963 else | |
964 { | |
965 copy = lalloc(len, FALSE); | |
966 if (copy == NULL) | |
967 return 0; | |
968 } | |
969 crypt_encode(bi->bi_state, ptr, len, copy); | |
970 i = fwrite(copy, len, (size_t)1, bi->bi_fp); | |
971 if (copy != small_buf) | |
972 vim_free(copy); | |
973 return i == 1 ? OK : FAIL; | |
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974 } |
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975 #endif |
6122 | 976 return undo_write(bi, ptr, len); |
977 } | |
978 | |
979 /* | |
980 * Write a number, MSB first, in "len" bytes. | |
981 * Must match with undo_read_?c() functions. | |
982 * Returns OK or FAIL. | |
983 */ | |
984 static int | |
985 undo_write_bytes(bi, nr, len) | |
986 bufinfo_T *bi; | |
987 long_u nr; | |
988 int len; | |
989 { | |
990 char_u buf[8]; | |
991 int i; | |
992 int bufi = 0; | |
993 | |
994 for (i = len - 1; i >= 0; --i) | |
995 buf[bufi++] = nr >> (i * 8); | |
996 return undo_write(bi, buf, (size_t)len); | |
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997 } |
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998 |
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999 /* |
6122 | 1000 * Write the pointer to an undo header. Instead of writing the pointer itself |
1001 * we use the sequence number of the header. This is converted back to | |
1002 * pointers when reading. */ | |
1003 static void | |
1004 put_header_ptr(bi, uhp) | |
1005 bufinfo_T *bi; | |
1006 u_header_T *uhp; | |
1007 { | |
1008 undo_write_bytes(bi, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4); | |
1009 } | |
1010 | |
1011 static int | |
1012 undo_read_4c(bi) | |
1013 bufinfo_T *bi; | |
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1014 { |
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1015 #ifdef FEAT_CRYPT |
6122 | 1016 if (bi->bi_buffer != NULL) |
1017 { | |
1018 char_u buf[4]; | |
1019 int n; | |
1020 | |
1021 undo_read(bi, buf, (size_t)4); | |
1022 n = (buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3]; | |
1023 return n; | |
1024 } | |
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1025 #endif |
6122 | 1026 return get4c(bi->bi_fp); |
1027 } | |
1028 | |
1029 static int | |
1030 undo_read_2c(bi) | |
1031 bufinfo_T *bi; | |
1032 { | |
1033 #ifdef FEAT_CRYPT | |
1034 if (bi->bi_buffer != NULL) | |
1035 { | |
1036 char_u buf[2]; | |
1037 int n; | |
1038 | |
1039 undo_read(bi, buf, (size_t)2); | |
1040 n = (buf[0] << 8) + buf[1]; | |
1041 return n; | |
1042 } | |
1043 #endif | |
1044 return get2c(bi->bi_fp); | |
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1045 } |
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1046 |
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1047 static int |
6122 | 1048 undo_read_byte(bi) |
1049 bufinfo_T *bi; | |
1050 { | |
1051 #ifdef FEAT_CRYPT | |
1052 if (bi->bi_buffer != NULL) | |
1053 { | |
1054 char_u buf[1]; | |
1055 | |
1056 undo_read(bi, buf, (size_t)1); | |
1057 return buf[0]; | |
1058 } | |
1059 #endif | |
1060 return getc(bi->bi_fp); | |
1061 } | |
1062 | |
1063 static time_t | |
1064 undo_read_time(bi) | |
1065 bufinfo_T *bi; | |
1066 { | |
1067 #ifdef FEAT_CRYPT | |
1068 if (bi->bi_buffer != NULL) | |
1069 { | |
1070 char_u buf[8]; | |
1071 time_t n = 0; | |
1072 int i; | |
1073 | |
1074 undo_read(bi, buf, (size_t)8); | |
1075 for (i = 0; i < 8; ++i) | |
1076 n = (n << 8) + buf[i]; | |
1077 return n; | |
1078 } | |
1079 #endif | |
1080 return get8ctime(bi->bi_fp); | |
1081 } | |
1082 | |
1083 /* | |
1084 * Read "buffer[size]" from the undo file. | |
1085 * Return OK or FAIL. | |
1086 */ | |
1087 static int | |
1088 undo_read(bi, buffer, size) | |
1089 bufinfo_T *bi; | |
1090 char_u *buffer; | |
1091 size_t size; | |
1092 { | |
1093 #ifdef FEAT_CRYPT | |
1094 if (bi->bi_buffer != NULL) | |
1095 { | |
1096 int size_todo = size; | |
1097 char_u *p = buffer; | |
1098 | |
1099 while (size_todo > 0) | |
1100 { | |
1101 size_t n; | |
1102 | |
1103 if (bi->bi_used >= bi->bi_avail) | |
1104 { | |
1105 n = fread(bi->bi_buffer, 1, (size_t)CRYPT_BUF_SIZE, bi->bi_fp); | |
1106 if (n <= 0) | |
1107 { | |
1108 /* Error may be checked for only later. Fill with zeros, | |
1109 * so that the reader won't use garbage. */ | |
1110 vim_memset(p, 0, size_todo); | |
1111 return FAIL; | |
1112 } | |
1113 bi->bi_avail = n; | |
1114 bi->bi_used = 0; | |
1115 crypt_decode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_avail); | |
1116 } | |
1117 n = size_todo; | |
1118 if (n > bi->bi_avail - bi->bi_used) | |
1119 n = bi->bi_avail - bi->bi_used; | |
1120 mch_memmove(p, bi->bi_buffer + bi->bi_used, n); | |
1121 bi->bi_used += n; | |
1122 size_todo -= n; | |
1123 p += n; | |
1124 } | |
1125 return OK; | |
1126 } | |
1127 #endif | |
1128 if (fread(buffer, (size_t)size, 1, bi->bi_fp) != 1) | |
1129 return FAIL; | |
1130 return OK; | |
1131 } | |
1132 | |
1133 /* | |
1134 * Read a string of length "len" from "bi->bi_fd". | |
1135 * "len" can be zero to allocate an empty line. | |
1136 * Decrypt the bytes if needed. | |
1137 * Append a NUL. | |
1138 * Returns a pointer to allocated memory or NULL for failure. | |
1139 */ | |
1140 static char_u * | |
1141 read_string_decrypt(bi, len) | |
1142 bufinfo_T *bi; | |
1143 int len; | |
1144 { | |
1145 char_u *ptr = alloc((unsigned)len + 1); | |
1146 | |
1147 if (ptr != NULL) | |
1148 { | |
1149 if (len > 0 && undo_read(bi, ptr, len) == FAIL) | |
1150 { | |
1151 vim_free(ptr); | |
1152 return NULL; | |
1153 } | |
1154 ptr[len] = NUL; | |
1155 #ifdef FEAT_CRYPT | |
1156 if (bi->bi_state != NULL && bi->bi_buffer == NULL) | |
1157 crypt_decode_inplace(bi->bi_state, ptr, len); | |
1158 #endif | |
1159 } | |
1160 return ptr; | |
1161 } | |
1162 | |
1163 /* | |
1164 * Writes the (not encrypted) header and initializes encryption if needed. | |
1165 */ | |
1166 static int | |
1167 serialize_header(bi, hash) | |
1168 bufinfo_T *bi; | |
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1169 char_u *hash; |
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1170 { |
6122 | 1171 int len; |
1172 buf_T *buf = bi->bi_buf; | |
1173 FILE *fp = bi->bi_fp; | |
1174 char_u time_buf[8]; | |
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1175 |
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1176 /* Start writing, first the magic marker and undo info version. */ |
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1177 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1) |
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1178 return FAIL; |
2239
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1179 |
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1180 /* If the buffer is encrypted then all text bytes following will be |
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1181 * encrypted. Numbers and other info is not crypted. */ |
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1182 #ifdef FEAT_CRYPT |
2410
8f6106dd3d12
Fix: editing a not encrypted file after a crypted file messed up reading the
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1183 if (*buf->b_p_key != NUL) |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
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diff
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|
1184 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1185 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
|
1186 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
|
1187 |
6122 | 1188 undo_write_bytes(bi, (long_u)UF_VERSION_CRYPT, 2); |
1189 bi->bi_state = crypt_create_for_writing(crypt_get_method_nr(buf), | |
1190 buf->b_p_key, &header, &header_len); | |
1191 if (bi->bi_state == NULL) | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1192 return FAIL; |
2245
4e0124f5aee2
Optimize the blowfish crypt/decrypt code a bit more.
Bram Moolenaar <bram@vim.org>
parents:
2242
diff
changeset
|
1193 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:
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diff
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|
1194 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
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|
1195 if (len != 1) |
2267 | 1196 { |
6122 | 1197 crypt_free_state(bi->bi_state); |
1198 bi->bi_state = NULL; | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1199 return FAIL; |
2267 | 1200 } |
6122 | 1201 |
1202 if (crypt_whole_undofile(crypt_get_method_nr(buf))) | |
1203 { | |
1204 bi->bi_buffer = alloc(CRYPT_BUF_SIZE); | |
1205 if (bi->bi_buffer == NULL) | |
1206 { | |
1207 crypt_free_state(bi->bi_state); | |
1208 bi->bi_state = NULL; | |
1209 return FAIL; | |
1210 } | |
1211 bi->bi_used = 0; | |
1212 } | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
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|
1213 } |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
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|
1214 else |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1215 #endif |
6122 | 1216 undo_write_bytes(bi, (long_u)UF_VERSION, 2); |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1217 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1218 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1219 /* 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
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|
1220 * same when reading the buffer text. */ |
6122 | 1221 if (undo_write(bi, hash, (size_t)UNDO_HASH_SIZE) == FAIL) |
2238
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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|
1222 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1223 |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1224 /* buffer-specific data */ |
6122 | 1225 undo_write_bytes(bi, (long_u)buf->b_ml.ml_line_count, 4); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1226 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0; |
6122 | 1227 undo_write_bytes(bi, (long_u)len, 4); |
1228 if (len > 0 && fwrite_crypt(bi, buf->b_u_line_ptr, (size_t)len) == FAIL) | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
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|
1229 return FAIL; |
6122 | 1230 undo_write_bytes(bi, (long_u)buf->b_u_line_lnum, 4); |
1231 undo_write_bytes(bi, (long_u)buf->b_u_line_colnr, 4); | |
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1232 |
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Made reading/writing undo info a bit more robust.
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|
1233 /* Undo structures header data */ |
6122 | 1234 put_header_ptr(bi, buf->b_u_oldhead); |
1235 put_header_ptr(bi, buf->b_u_newhead); | |
1236 put_header_ptr(bi, buf->b_u_curhead); | |
1237 | |
1238 undo_write_bytes(bi, (long_u)buf->b_u_numhead, 4); | |
1239 undo_write_bytes(bi, (long_u)buf->b_u_seq_last, 4); | |
1240 undo_write_bytes(bi, (long_u)buf->b_u_seq_cur, 4); | |
1241 time_to_bytes(buf->b_u_time_cur, time_buf); | |
1242 undo_write(bi, time_buf, 8); | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1243 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
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|
1244 /* Optional fields. */ |
6122 | 1245 undo_write_bytes(bi, 4, 1); |
1246 undo_write_bytes(bi, UF_LAST_SAVE_NR, 1); | |
1247 undo_write_bytes(bi, (long_u)buf->b_u_save_nr_last, 4); | |
1248 | |
1249 undo_write_bytes(bi, 0, 1); /* end marker */ | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1250 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1251 return OK; |
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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|
1252 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1253 |
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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|
1254 static int |
6122 | 1255 serialize_uhp(bi, uhp) |
1256 bufinfo_T *bi; | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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|
1257 u_header_T *uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1258 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1259 int i; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
2236
diff
changeset
|
1260 u_entry_T *uep; |
6122 | 1261 char_u time_buf[8]; |
1262 | |
1263 if (undo_write_bytes(bi, (long_u)UF_HEADER_MAGIC, 2) == FAIL) | |
2238
3d0a7beb0d75
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Bram Moolenaar <bram@vim.org>
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|
1264 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
2236
diff
changeset
|
1265 |
6122 | 1266 put_header_ptr(bi, uhp->uh_next.ptr); |
1267 put_header_ptr(bi, uhp->uh_prev.ptr); | |
1268 put_header_ptr(bi, uhp->uh_alt_next.ptr); | |
1269 put_header_ptr(bi, uhp->uh_alt_prev.ptr); | |
1270 undo_write_bytes(bi, uhp->uh_seq, 4); | |
1271 serialize_pos(bi, uhp->uh_cursor); | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
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|
1272 #ifdef FEAT_VIRTUALEDIT |
6122 | 1273 undo_write_bytes(bi, (long_u)uhp->uh_cursor_vcol, 4); |
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1274 #else |
6122 | 1275 undo_write_bytes(bi, (long_u)0, 4); |
2238
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|
1276 #endif |
6122 | 1277 undo_write_bytes(bi, (long_u)uhp->uh_flags, 2); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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|
1278 /* Assume NMARKS will stay the same. */ |
3d0a7beb0d75
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2236
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|
1279 for (i = 0; i < NMARKS; ++i) |
6122 | 1280 serialize_pos(bi, uhp->uh_namedm[i]); |
1281 serialize_visualinfo(bi, &uhp->uh_visual); | |
1282 time_to_bytes(uhp->uh_time, time_buf); | |
1283 undo_write(bi, time_buf, 8); | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1284 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
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|
1285 /* Optional fields. */ |
6122 | 1286 undo_write_bytes(bi, 4, 1); |
1287 undo_write_bytes(bi, UHP_SAVE_NR, 1); | |
1288 undo_write_bytes(bi, (long_u)uhp->uh_save_nr, 4); | |
1289 | |
1290 undo_write_bytes(bi, 0, 1); /* end marker */ | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1291 |
2238
3d0a7beb0d75
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|
1292 /* Write all the entries. */ |
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|
1293 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) |
3d0a7beb0d75
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|
1294 { |
6122 | 1295 undo_write_bytes(bi, (long_u)UF_ENTRY_MAGIC, 2); |
1296 if (serialize_uep(bi, uep) == FAIL) | |
2238
3d0a7beb0d75
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parents:
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|
1297 return FAIL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1298 } |
6122 | 1299 undo_write_bytes(bi, (long_u)UF_ENTRY_END_MAGIC, 2); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
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|
1300 return OK; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1301 } |
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|
1302 |
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Made reading/writing undo info a bit more robust.
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parents:
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changeset
|
1303 static u_header_T * |
6122 | 1304 unserialize_uhp(bi, file_name) |
1305 bufinfo_T *bi; | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1306 char_u *file_name; |
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1307 { |
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|
1308 u_header_T *uhp; |
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|
1309 int i; |
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|
1310 u_entry_T *uep, *last_uep; |
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|
1311 int c; |
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|
1312 int error; |
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1313 |
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|
1314 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
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|
1315 if (uhp == NULL) |
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|
1316 return NULL; |
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|
1317 vim_memset(uhp, 0, sizeof(u_header_T)); |
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|
1318 #ifdef U_DEBUG |
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1319 uhp->uh_magic = UH_MAGIC; |
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|
1320 #endif |
6122 | 1321 uhp->uh_next.seq = undo_read_4c(bi); |
1322 uhp->uh_prev.seq = undo_read_4c(bi); | |
1323 uhp->uh_alt_next.seq = undo_read_4c(bi); | |
1324 uhp->uh_alt_prev.seq = undo_read_4c(bi); | |
1325 uhp->uh_seq = undo_read_4c(bi); | |
2238
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|
1326 if (uhp->uh_seq <= 0) |
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1327 { |
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1328 corruption_error("uh_seq", file_name); |
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|
1329 vim_free(uhp); |
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1330 return NULL; |
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1331 } |
6122 | 1332 unserialize_pos(bi, &uhp->uh_cursor); |
2238
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|
1333 #ifdef FEAT_VIRTUALEDIT |
6122 | 1334 uhp->uh_cursor_vcol = undo_read_4c(bi); |
2238
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1335 #else |
6122 | 1336 (void)undo_read_4c(bi); |
2238
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|
1337 #endif |
6122 | 1338 uhp->uh_flags = undo_read_2c(bi); |
2238
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|
1339 for (i = 0; i < NMARKS; ++i) |
6122 | 1340 unserialize_pos(bi, &uhp->uh_namedm[i]); |
1341 unserialize_visualinfo(bi, &uhp->uh_visual); | |
1342 uhp->uh_time = undo_read_time(bi); | |
2238
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1343 |
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1344 /* Optional fields. */ |
2342
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1345 for (;;) |
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|
1346 { |
6122 | 1347 int len = undo_read_byte(bi); |
2342
f6540762173d
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|
1348 int what; |
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1349 |
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1350 if (len == 0) |
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Fixes and improvements for MS-Windows build.
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|
1351 break; |
6122 | 1352 what = undo_read_byte(bi); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
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|
1353 switch (what) |
2280
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|
1354 { |
2342
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changeset
|
1355 case UHP_SAVE_NR: |
6122 | 1356 uhp->uh_save_nr = undo_read_4c(bi); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1357 break; |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1358 default: |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1359 /* field not supported, skip */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1360 while (--len >= 0) |
6122 | 1361 (void)undo_read_byte(bi); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1362 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1363 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1364 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1365 /* Unserialize the uep list. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1366 last_uep = NULL; |
6122 | 1367 while ((c = undo_read_2c(bi)) == UF_ENTRY_MAGIC) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1368 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1369 error = FALSE; |
6122 | 1370 uep = unserialize_uep(bi, &error, file_name); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1371 if (last_uep == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1372 uhp->uh_entry = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1373 else |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1374 last_uep->ue_next = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1375 last_uep = uep; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1376 if (uep == NULL || error) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1377 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1378 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1379 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1380 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1381 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1382 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
|
1383 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1384 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
|
1385 u_free_uhp(uhp); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1386 return NULL; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1387 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1388 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1389 return uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1390 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1391 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1392 /* |
6122 | 1393 * Serialize "uep". |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1394 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1395 static int |
6122 | 1396 serialize_uep(bi, uep) |
1397 bufinfo_T *bi; | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1398 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
|
1399 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1400 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1401 size_t len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1402 |
6122 | 1403 undo_write_bytes(bi, (long_u)uep->ue_top, 4); |
1404 undo_write_bytes(bi, (long_u)uep->ue_bot, 4); | |
1405 undo_write_bytes(bi, (long_u)uep->ue_lcount, 4); | |
1406 undo_write_bytes(bi, (long_u)uep->ue_size, 4); | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1407 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
|
1408 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1409 len = STRLEN(uep->ue_array[i]); |
6122 | 1410 if (undo_write_bytes(bi, (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
|
1411 return FAIL; |
6122 | 1412 if (len > 0 && fwrite_crypt(bi, uep->ue_array[i], len) == FAIL) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1413 return FAIL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1414 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1415 return OK; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1416 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1417 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1418 static u_entry_T * |
6122 | 1419 unserialize_uep(bi, error, file_name) |
1420 bufinfo_T *bi; | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1421 int *error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1422 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
|
1423 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1424 int i; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1425 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
|
1426 char_u **array; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1427 char_u *line; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1428 int line_len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1429 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1430 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
|
1431 if (uep == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1432 return NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1433 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
|
1434 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1435 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
|
1436 #endif |
6122 | 1437 uep->ue_top = undo_read_4c(bi); |
1438 uep->ue_bot = undo_read_4c(bi); | |
1439 uep->ue_lcount = undo_read_4c(bi); | |
1440 uep->ue_size = undo_read_4c(bi); | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1441 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
|
1442 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1443 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
|
1444 if (array == NULL) |
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 *error = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1447 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1448 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1449 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
|
1450 } |
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
|
1451 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
|
1452 array = NULL; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1453 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
|
1454 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1455 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
|
1456 { |
6122 | 1457 line_len = undo_read_4c(bi); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1458 if (line_len >= 0) |
6122 | 1459 line = read_string_decrypt(bi, line_len); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1460 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1461 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1462 line = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1463 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
|
1464 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1465 if (line == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1466 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1467 *error = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1468 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1469 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1470 array[i] = line; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1471 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1472 return uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1473 } |
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 /* |
6122 | 1476 * Serialize "pos". |
2231
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 static void |
6122 | 1479 serialize_pos(bi, pos) |
1480 bufinfo_T *bi; | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1481 pos_T pos; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1482 { |
6122 | 1483 undo_write_bytes(bi, (long_u)pos.lnum, 4); |
1484 undo_write_bytes(bi, (long_u)pos.col, 4); | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1485 #ifdef FEAT_VIRTUALEDIT |
6122 | 1486 undo_write_bytes(bi, (long_u)pos.coladd, 4); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1487 #else |
6122 | 1488 undo_write_bytes(bi, (long_u)0, 4); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1489 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1490 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1491 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1492 /* |
6122 | 1493 * Unserialize the pos_T at the current position. |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1494 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1495 static void |
6122 | 1496 unserialize_pos(bi, pos) |
1497 bufinfo_T *bi; | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1498 pos_T *pos; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1499 { |
6122 | 1500 pos->lnum = undo_read_4c(bi); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1501 if (pos->lnum < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1502 pos->lnum = 0; |
6122 | 1503 pos->col = undo_read_4c(bi); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1504 if (pos->col < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1505 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
|
1506 #ifdef FEAT_VIRTUALEDIT |
6122 | 1507 pos->coladd = undo_read_4c(bi); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1508 if (pos->coladd < 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1509 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
|
1510 #else |
6122 | 1511 (void)undo_read_4c(bi); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1512 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1513 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1514 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1515 /* |
6122 | 1516 * Serialize "info". |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1517 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1518 static void |
6122 | 1519 serialize_visualinfo(bi, info) |
1520 bufinfo_T *bi; | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1521 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1522 { |
6122 | 1523 serialize_pos(bi, info->vi_start); |
1524 serialize_pos(bi, info->vi_end); | |
1525 undo_write_bytes(bi, (long_u)info->vi_mode, 4); | |
1526 undo_write_bytes(bi, (long_u)info->vi_curswant, 4); | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1527 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1528 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1529 /* |
6122 | 1530 * Unserialize the visualinfo_T at the current position. |
2231
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 static void |
6122 | 1533 unserialize_visualinfo(bi, info) |
1534 bufinfo_T *bi; | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1535 visualinfo_T *info; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1536 { |
6122 | 1537 unserialize_pos(bi, &info->vi_start); |
1538 unserialize_pos(bi, &info->vi_end); | |
1539 info->vi_mode = undo_read_4c(bi); | |
1540 info->vi_curswant = undo_read_4c(bi); | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1541 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
changeset
|
1542 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
changeset
|
1543 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
changeset
|
1544 * 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
|
1545 * 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
|
1546 * 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
|
1547 * "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
|
1548 * permissions. |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1549 * "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
|
1550 * "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
|
1551 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1552 void |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1553 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
|
1554 char_u *name; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1555 int forceit; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1556 buf_T *buf; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1557 char_u *hash; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1558 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1559 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
|
1560 char_u *file_name; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1561 int mark; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1562 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1563 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
|
1564 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1565 int fd; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1566 FILE *fp = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1567 int perm; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1568 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
|
1569 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1570 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
|
1571 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
|
1572 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
|
1573 #endif |
6122 | 1574 bufinfo_T bi; |
1575 | |
2267 | 1576 #ifdef FEAT_CRYPT |
6122 | 1577 bi.bi_state = NULL; |
1578 bi.bi_buffer = NULL; | |
2267 | 1579 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1580 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1581 if (name == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1582 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1583 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
|
1584 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
|
1585 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1586 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
|
1587 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1588 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1589 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
|
1590 _("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
|
1591 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1592 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1593 return; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1594 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1595 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1596 else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1597 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
|
1598 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1599 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1600 * 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
|
1601 * 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
|
1602 * 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
|
1603 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1604 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1605 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
|
1606 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1607 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1608 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
|
1609 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1610 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
|
1611 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
|
1612 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1613 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1614 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
|
1615 if (perm < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1616 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1617 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1618 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1619 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1620 /* 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
|
1621 perm = perm & 0777; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1622 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1623 /* 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
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|
1624 * 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
|
1625 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
|
1626 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1627 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
|
1628 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1629 /* 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
|
1630 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
|
1631 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1632 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1633 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
|
1634 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1635 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
|
1636 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1637 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
|
1638 _("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
|
1639 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
|
1640 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
|
1641 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1642 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1643 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1644 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1645 else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1646 { |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1647 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
|
1648 int len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1649 |
2664 | 1650 len = read_eintr(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
|
1651 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1652 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
|
1653 || 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
|
1654 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1655 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
|
1656 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1657 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
|
1658 verbose_enter(); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1659 smsg((char_u *) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1660 _("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
|
1661 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
|
1662 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
|
1663 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1664 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1665 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1666 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1667 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1668 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1669 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
|
1670 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1671 |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1672 /* 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
|
1673 * existing undo file. */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1674 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
|
1675 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1676 if (p_verbose > 0) |
2262 | 1677 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
|
1678 goto theend; |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1679 } |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1680 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1681 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
|
1682 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
|
1683 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1684 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1685 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
|
1686 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1687 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1688 (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
|
1689 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
|
1690 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1691 verbose_enter(); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1692 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
|
1693 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1694 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1695 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1696 #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
|
1697 /* 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
|
1698 u_check(FALSE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1699 #endif |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1700 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1701 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1702 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1703 * 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
|
1704 * 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
|
1705 * 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
|
1706 */ |
2367
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1707 if (st_old_valid |
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1708 && mch_stat((char *)file_name, &st_new) >= 0 |
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1709 && st_new.st_gid != st_old.st_gid |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1710 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */ |
2367
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1711 && fchown(fd, (uid_t)-1, st_old.st_gid) != 0 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1712 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1713 ) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1714 mch_setperm(file_name, (perm & 0707) | ((perm & 07) << 3)); |
5788 | 1715 # if defined(HAVE_SELINUX) || defined(HAVE_SMACK) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1716 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
|
1717 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
|
1718 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1719 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1720 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1721 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
|
1722 if (fp == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1723 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1724 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
|
1725 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1726 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
|
1727 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1728 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1729 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1730 /* Undo must be synced. */ |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1731 u_sync(TRUE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1732 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1733 /* |
6122 | 1734 * Write the header. Initializes encryption, if enabled. |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1735 */ |
6122 | 1736 bi.bi_buf = buf; |
1737 bi.bi_fp = fp; | |
1738 if (serialize_header(&bi, hash) == FAIL) | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1739 goto write_error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1740 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1741 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1742 * 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
|
1743 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1744 mark = ++lastmark; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1745 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
|
1746 while (uhp != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1747 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1748 /* 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
|
1749 if (uhp->uh_walk != mark) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1750 { |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1751 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
|
1752 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1753 ++headers_written; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1754 #endif |
6122 | 1755 if (serialize_uhp(&bi, uhp) == FAIL) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1756 goto write_error; |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1757 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1758 |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1759 /* 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
|
1760 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
|
1761 uhp = uhp->uh_prev.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1762 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
|
1763 && 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
|
1764 uhp = uhp->uh_alt_next.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1765 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
|
1766 && uhp->uh_next.ptr->uh_walk != mark) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1767 uhp = uhp->uh_next.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1768 else if (uhp->uh_alt_prev.ptr != NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1769 uhp = uhp->uh_alt_prev.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1770 else |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1771 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
|
1772 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1773 |
6122 | 1774 if (undo_write_bytes(&bi, (long_u)UF_HEADER_END_MAGIC, 2) == OK) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1775 write_ok = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1776 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1777 if (headers_written != buf->b_u_numhead) |
4827
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1778 { |
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1779 EMSGN("Written %ld headers, ...", headers_written); |
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1780 EMSGN("... but numhead is %ld", buf->b_u_numhead); |
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1781 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1782 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1783 |
6122 | 1784 #ifdef FEAT_CRYPT |
1785 if (bi.bi_state != NULL && undo_flush(&bi) == FAIL) | |
1786 write_ok = FALSE; | |
1787 #endif | |
1788 | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1789 write_error: |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1790 fclose(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1791 if (!write_ok) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1792 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
|
1793 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1794 #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
|
1795 /* 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
|
1796 * 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
|
1797 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
|
1798 (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
|
1799 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1800 #ifdef HAVE_ACL |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1801 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
|
1802 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1803 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
|
1804 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1805 /* 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
|
1806 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
|
1807 mch_set_acl(file_name, acl); |
3545 | 1808 mch_free_acl(acl); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1809 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1810 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1811 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1812 theend: |
2267 | 1813 #ifdef FEAT_CRYPT |
6122 | 1814 if (bi.bi_state != NULL) |
1815 crypt_free_state(bi.bi_state); | |
1816 vim_free(bi.bi_buffer); | |
2267 | 1817 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1818 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
|
1819 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
|
1820 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1821 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1822 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1823 * 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
|
1824 * 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
|
1825 * 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
|
1826 * 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
|
1827 * "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
|
1828 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1829 void |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1830 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
|
1831 char_u *name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1832 char_u *hash; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1833 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
|
1834 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1835 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
|
1836 FILE *fp; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1837 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
|
1838 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
|
1839 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
|
1840 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
|
1841 linenr_T line_count; |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
1842 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
|
1843 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
|
1844 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
|
1845 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
|
1846 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
|
1847 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
|
1848 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
|
1849 int i, j; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1850 int c; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1851 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
|
1852 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
|
1853 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
|
1854 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
|
1855 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1856 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
|
1857 #endif |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1858 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1859 struct stat st_orig; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1860 struct stat st_undo; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1861 #endif |
6122 | 1862 bufinfo_T bi; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1863 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1864 if (name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1865 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1866 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
|
1867 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
|
1868 return; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1869 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1870 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1871 /* For safety we only read an undo file if the owner is equal to the |
5343 | 1872 * owner of the text file or equal to the current user. */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1873 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
|
1874 && mch_stat((char *)file_name, &st_undo) >= 0 |
5343 | 1875 && st_orig.st_uid != st_undo.st_uid |
1876 && st_undo.st_uid != getuid()) | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1877 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1878 if (p_verbose > 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1879 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1880 verbose_enter(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1881 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
|
1882 file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1883 verbose_leave(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1884 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1885 return; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1886 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1887 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1888 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1889 else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1890 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
|
1891 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1892 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
|
1893 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1894 verbose_enter(); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1895 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
|
1896 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1897 } |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1898 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1899 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
|
1900 if (fp == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1901 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1902 if (name != NULL || p_verbose > 0) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1903 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
|
1904 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1905 } |
6122 | 1906 bi.bi_buf = curbuf; |
1907 bi.bi_fp = fp; | |
1908 #ifdef FEAT_CRYPT | |
1909 bi.bi_state = NULL; | |
1910 bi.bi_buffer = NULL; | |
1911 #endif | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1912 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1913 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1914 * 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
|
1915 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1916 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
|
1917 || 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
|
1918 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1919 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
|
1920 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1921 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1922 version = get2c(fp); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1923 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
|
1924 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1925 #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
|
1926 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
|
1927 { |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1928 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
|
1929 file_name); |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1930 goto error; |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1931 } |
6122 | 1932 bi.bi_state = crypt_create_from_file(fp, curbuf->b_p_key); |
1933 if (bi.bi_state == NULL) | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1934 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1935 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
|
1936 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
|
1937 } |
6122 | 1938 if (crypt_whole_undofile(bi.bi_state->method_nr)) |
1939 { | |
1940 bi.bi_buffer = alloc(CRYPT_BUF_SIZE); | |
1941 if (bi.bi_buffer == NULL) | |
1942 { | |
1943 crypt_free_state(bi.bi_state); | |
1944 bi.bi_state = NULL; | |
1945 goto error; | |
1946 } | |
1947 bi.bi_avail = 0; | |
1948 bi.bi_used = 0; | |
1949 } | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1950 #else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1951 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
|
1952 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
|
1953 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1954 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1955 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
|
1956 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1957 EMSG2(_("E824: Incompatible undo file: %s"), file_name); |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1958 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1959 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1960 |
6122 | 1961 if (undo_read(&bi, read_hash, (size_t)UNDO_HASH_SIZE) == FAIL) |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1962 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1963 corruption_error("hash", file_name); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1964 goto error; |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1965 } |
6122 | 1966 line_count = (linenr_T)undo_read_4c(&bi); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1967 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
|
1968 || 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
|
1969 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1970 if (p_verbose > 0 || name != NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1971 { |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1972 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
|
1973 verbose_enter(); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1974 give_warning((char_u *) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1975 _("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
|
1976 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
|
1977 verbose_leave(); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1978 } |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1979 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1980 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1981 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1982 /* Read undo data for "U" command. */ |
6122 | 1983 str_len = undo_read_4c(&bi); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1984 if (str_len < 0) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1985 goto error; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1986 if (str_len > 0) |
6122 | 1987 line_ptr = read_string_decrypt(&bi, str_len); |
1988 line_lnum = (linenr_T)undo_read_4c(&bi); | |
1989 line_colnr = (colnr_T)undo_read_4c(&bi); | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1990 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
|
1991 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1992 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
|
1993 goto error; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1994 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1995 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1996 /* Begin general undo data */ |
6122 | 1997 old_header_seq = undo_read_4c(&bi); |
1998 new_header_seq = undo_read_4c(&bi); | |
1999 cur_header_seq = undo_read_4c(&bi); | |
2000 num_head = undo_read_4c(&bi); | |
2001 seq_last = undo_read_4c(&bi); | |
2002 seq_cur = undo_read_4c(&bi); | |
2003 seq_time = undo_read_time(&bi); | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2004 |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2005 /* Optional header fields. */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2006 for (;;) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2007 { |
6122 | 2008 int len = undo_read_byte(&bi); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2009 int what; |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2010 |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2011 if (len == 0 || len == EOF) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2012 break; |
6122 | 2013 what = undo_read_byte(&bi); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2014 switch (what) |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2015 { |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2016 case UF_LAST_SAVE_NR: |
6122 | 2017 last_save_nr = undo_read_4c(&bi); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2018 break; |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2019 default: |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2020 /* field not supported, skip */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2021 while (--len >= 0) |
6122 | 2022 (void)undo_read_byte(&bi); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2023 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2024 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2025 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2026 /* 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
|
2027 * 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
|
2028 * 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
|
2029 * 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
|
2030 if (num_head > 0) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2031 { |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2032 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
|
2033 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
|
2034 if (uhp_table == NULL) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2035 goto error; |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2036 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2037 |
6122 | 2038 while ((c = undo_read_2c(&bi)) == 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
|
2039 { |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2040 if (num_read_uhps >= num_head) |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2041 { |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2042 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
|
2043 goto error; |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2044 } |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2045 |
6122 | 2046 uhp = unserialize_uhp(&bi, file_name); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2047 if (uhp == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2048 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2049 uhp_table[num_read_uhps++] = uhp; |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2050 } |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2051 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2052 if (num_read_uhps != num_head) |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2053 { |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2054 corruption_error("num_head", file_name); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2055 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2056 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2057 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
|
2058 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2059 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
|
2060 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2061 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2062 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2063 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2064 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
|
2065 (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
|
2066 # 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
|
2067 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2068 # 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
|
2069 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2070 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2071 /* 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
|
2072 * 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
|
2073 * 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
|
2074 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
|
2075 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2076 uhp = uhp_table[i]; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2077 if (uhp == NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2078 continue; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2079 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2080 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
|
2081 && 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
|
2082 { |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2083 corruption_error("duplicate uh_seq", file_name); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2084 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2085 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2086 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2087 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
|
2088 && 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
|
2089 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2090 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
|
2091 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2092 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2093 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2094 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2095 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
|
2096 && 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
|
2097 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2098 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
|
2099 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2100 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2101 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2102 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2103 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
|
2104 && 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
|
2105 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2106 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
|
2107 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2108 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2109 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2110 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2111 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
|
2112 && 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
|
2113 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2114 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
|
2115 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2116 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2117 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2118 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
|
2119 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2120 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
|
2121 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2122 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2123 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
|
2124 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2125 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
|
2126 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2127 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2128 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
|
2129 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2130 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
|
2131 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2132 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2133 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2134 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2135 /* 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
|
2136 * 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
|
2137 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
|
2138 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
|
2139 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
|
2140 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
|
2141 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
|
2142 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
|
2143 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
|
2144 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
|
2145 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
|
2146 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
|
2147 curbuf->b_u_time_cur = seq_time; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2148 curbuf->b_u_save_nr_last = last_save_nr; |
2627 | 2149 curbuf->b_u_save_nr_cur = last_save_nr; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2150 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2151 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
|
2152 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
|
2153 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2154 #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
|
2155 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
|
2156 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
|
2157 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
|
2158 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
|
2159 u_check(TRUE); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2160 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2161 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2162 if (name != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2163 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
|
2164 goto theend; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2165 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2166 error: |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2167 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
|
2168 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
|
2169 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2170 for (i = 0; i < num_read_uhps; i++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2171 if (uhp_table[i] != NULL) |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2172 u_free_uhp(uhp_table[i]); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2173 vim_free(uhp_table); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2174 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2175 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2176 theend: |
2267 | 2177 #ifdef FEAT_CRYPT |
6122 | 2178 if (bi.bi_state != NULL) |
2179 crypt_free_state(bi.bi_state); | |
2180 vim_free(bi.bi_buffer); | |
2267 | 2181 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2182 if (fp != NULL) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2183 fclose(fp); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2184 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
|
2185 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
|
2186 return; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2187 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2188 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2189 #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
|
2190 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2191 |
7 | 2192 /* |
2193 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible). | |
2194 * If 'cpoptions' does not contain 'u': Always undo. | |
2195 */ | |
2196 void | |
2197 u_undo(count) | |
2198 int count; | |
2199 { | |
2200 /* | |
2201 * If we get an undo command while executing a macro, we behave like the | |
2202 * original vi. If this happens twice in one macro the result will not | |
2203 * be compatible. | |
2204 */ | |
2205 if (curbuf->b_u_synced == FALSE) | |
2206 { | |
825 | 2207 u_sync(TRUE); |
7 | 2208 count = 1; |
2209 } | |
2210 | |
2211 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
2212 undo_undoes = TRUE; | |
2213 else | |
2214 undo_undoes = !undo_undoes; | |
2215 u_doit(count); | |
2216 } | |
2217 | |
2218 /* | |
2219 * If 'cpoptions' contains 'u': Repeat the previous undo or redo. | |
2220 * If 'cpoptions' does not contain 'u': Always redo. | |
2221 */ | |
2222 void | |
2223 u_redo(count) | |
2224 int count; | |
2225 { | |
2226 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
2227 undo_undoes = FALSE; | |
2228 u_doit(count); | |
2229 } | |
2230 | |
2231 /* | |
2232 * Undo or redo, depending on 'undo_undoes', 'count' times. | |
2233 */ | |
2234 static void | |
777 | 2235 u_doit(startcount) |
2236 int startcount; | |
7 | 2237 { |
777 | 2238 int count = startcount; |
2239 | |
632 | 2240 if (!undo_allowed()) |
7 | 2241 return; |
2242 | |
2243 u_newcount = 0; | |
2244 u_oldcount = 0; | |
179 | 2245 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
2246 u_oldcount = -1; | |
7 | 2247 while (count--) |
2248 { | |
2189 | 2249 /* Do the change warning now, so that it triggers FileChangedRO when |
2250 * needed. This may cause the file to be reloaded, that must happen | |
2251 * before we do anything, because it may change curbuf->b_u_curhead | |
2252 * and more. */ | |
2253 change_warning(0); | |
2254 | |
7 | 2255 if (undo_undoes) |
2256 { | |
2257 if (curbuf->b_u_curhead == NULL) /* first undo */ | |
2258 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
5446 | 2259 else if (get_undolevel() > 0) /* multi level undo */ |
7 | 2260 /* get next undo */ |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2261 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr; |
7 | 2262 /* nothing to undo */ |
2263 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL) | |
2264 { | |
2265 /* stick curbuf->b_u_curhead at end */ | |
2266 curbuf->b_u_curhead = curbuf->b_u_oldhead; | |
2267 beep_flush(); | |
777 | 2268 if (count == startcount - 1) |
2269 { | |
2270 MSG(_("Already at oldest change")); | |
2271 return; | |
2272 } | |
7 | 2273 break; |
2274 } | |
2275 | |
777 | 2276 u_undoredo(TRUE); |
7 | 2277 } |
2278 else | |
2279 { | |
5446 | 2280 if (curbuf->b_u_curhead == NULL || get_undolevel() <= 0) |
7 | 2281 { |
2282 beep_flush(); /* nothing to redo */ | |
777 | 2283 if (count == startcount - 1) |
2284 { | |
2285 MSG(_("Already at newest change")); | |
2286 return; | |
2287 } | |
7 | 2288 break; |
2289 } | |
2290 | |
777 | 2291 u_undoredo(FALSE); |
753 | 2292 |
2293 /* Advance for next redo. Set "newhead" when at the end of the | |
2294 * redoable changes. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2295 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
753 | 2296 curbuf->b_u_newhead = curbuf->b_u_curhead; |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2297 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr; |
7 | 2298 } |
2299 } | |
798 | 2300 u_undo_end(undo_undoes, FALSE); |
753 | 2301 } |
2302 | |
2303 /* | |
2304 * Undo or redo over the timeline. | |
2305 * When "step" is negative go back in time, otherwise goes forward in time. | |
758 | 2306 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as |
2307 * seconds. | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2308 * When "file" is TRUE use "step" as a number of file writes. |
772 | 2309 * When "absolute" is TRUE use "step" as the sequence number to jump to. |
2310 * "sec" must be FALSE then. | |
753 | 2311 */ |
2312 void | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2313 undo_time(step, sec, file, absolute) |
758 | 2314 long step; |
2315 int sec; | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2316 int file; |
772 | 2317 int absolute; |
753 | 2318 { |
2319 long target; | |
2320 long closest; | |
758 | 2321 long closest_start; |
2322 long closest_seq = 0; | |
2323 long val; | |
753 | 2324 u_header_T *uhp; |
2325 u_header_T *last; | |
2326 int mark; | |
2327 int nomark; | |
2328 int round; | |
758 | 2329 int dosec = sec; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2330 int dofile = file; |
758 | 2331 int above = FALSE; |
794 | 2332 int did_undo = TRUE; |
753 | 2333 |
766 | 2334 /* First make sure the current undoable change is synced. */ |
2335 if (curbuf->b_u_synced == FALSE) | |
825 | 2336 u_sync(TRUE); |
766 | 2337 |
753 | 2338 u_newcount = 0; |
2339 u_oldcount = 0; | |
179 | 2340 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
753 | 2341 u_oldcount = -1; |
2342 | |
777 | 2343 /* "target" is the node below which we want to be. |
2344 * Init "closest" to a value we can't reach. */ | |
772 | 2345 if (absolute) |
2346 { | |
2347 target = step; | |
777 | 2348 closest = -1; |
753 | 2349 } |
2350 else | |
2351 { | |
777 | 2352 /* When doing computations with time_t subtract starttime, because |
2353 * 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
|
2354 if (dosec) |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2355 target = (long)(curbuf->b_u_time_cur - starttime) + step; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2356 else if (dofile) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2357 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2358 if (step < 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2359 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2360 /* 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
|
2361 * 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
|
2362 * 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
|
2363 uhp = curbuf->b_u_curhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2364 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2365 uhp = uhp->uh_next.ptr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2366 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2367 uhp = curbuf->b_u_newhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2368 if (uhp != NULL && uhp->uh_save_nr != 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2369 /* "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
|
2370 * there were no changes since the last write */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2371 target = curbuf->b_u_save_nr_cur + step; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2372 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2373 /* 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
|
2374 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
|
2375 if (target <= 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2376 /* 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
|
2377 * the sequence number for that. */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2378 dofile = FALSE; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2379 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2380 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2381 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2382 /* Moving forward to a newer write. */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2383 target = curbuf->b_u_save_nr_cur + step; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2384 if (target > curbuf->b_u_save_nr_last) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2385 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2386 /* 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
|
2387 * the sequence number for that. */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2388 target = curbuf->b_u_seq_last + 1; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2389 dofile = FALSE; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2390 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2391 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2392 } |
777 | 2393 else |
2394 target = curbuf->b_u_seq_cur + step; | |
2395 if (step < 0) | |
758 | 2396 { |
777 | 2397 if (target < 0) |
2398 target = 0; | |
2399 closest = -1; | |
758 | 2400 } |
2401 else | |
2402 { | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2403 if (dosec) |
798 | 2404 closest = (long)(time(NULL) - starttime + 1); |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2405 else if (dofile) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2406 closest = curbuf->b_u_save_nr_last + 2; |
777 | 2407 else |
2408 closest = curbuf->b_u_seq_last + 2; | |
2409 if (target >= closest) | |
2410 target = closest - 1; | |
758 | 2411 } |
753 | 2412 } |
758 | 2413 closest_start = closest; |
777 | 2414 closest_seq = curbuf->b_u_seq_cur; |
753 | 2415 |
758 | 2416 /* |
2417 * May do this twice: | |
753 | 2418 * 1. Search for "target", update "closest" to the best match found. |
758 | 2419 * 2. If "target" not found search for "closest". |
2420 * | |
2421 * When using the closest time we use the sequence number in the second | |
2422 * round, because there may be several entries with the same time. | |
2423 */ | |
753 | 2424 for (round = 1; round <= 2; ++round) |
2425 { | |
2426 /* Find the path from the current state to where we want to go. The | |
2427 * desired state can be anywhere in the undo tree, need to go all over | |
2428 * it. We put "nomark" in uh_walk where we have been without success, | |
2429 * "mark" where it could possibly be. */ | |
2430 mark = ++lastmark; | |
2431 nomark = ++lastmark; | |
2432 | |
2433 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */ | |
2434 uhp = curbuf->b_u_newhead; | |
2435 else | |
2436 uhp = curbuf->b_u_curhead; | |
2437 | |
2438 while (uhp != NULL) | |
2439 { | |
2440 uhp->uh_walk = mark; | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2441 if (dosec) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2442 val = (long)(uhp->uh_time - starttime); |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2443 else if (dofile) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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2280
diff
changeset
|
2444 val = uhp->uh_save_nr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2445 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2446 val = uhp->uh_seq; |
753 | 2447 |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2448 if (round == 1 && !(dofile && val == 0)) |
758 | 2449 { |
2450 /* Remember the header that is closest to the target. | |
2451 * It must be at least in the right direction (checked with | |
777 | 2452 * "b_u_seq_cur"). When the timestamp is equal find the |
758 | 2453 * highest/lowest sequence number. */ |
777 | 2454 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur |
2455 : uhp->uh_seq > curbuf->b_u_seq_cur) | |
2456 && ((dosec && val == closest) | |
2457 ? (step < 0 | |
2458 ? uhp->uh_seq < closest_seq | |
2459 : uhp->uh_seq > closest_seq) | |
2460 : closest == closest_start | |
2461 || (val > target | |
2462 ? (closest > target | |
2463 ? val - target <= closest - target | |
2464 : val - target <= target - closest) | |
2465 : (closest > target | |
2466 ? target - val <= closest - target | |
2467 : target - val <= target - closest)))) | |
758 | 2468 { |
2469 closest = val; | |
2470 closest_seq = uhp->uh_seq; | |
2471 } | |
2472 } | |
2473 | |
2474 /* Quit searching when we found a match. But when searching for a | |
2475 * time we need to continue looking for the best uh_seq. */ | |
2476 if (target == val && !dosec) | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2477 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2478 target = uhp->uh_seq; |
758 | 2479 break; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2480 } |
753 | 2481 |
2482 /* go down in the tree if we haven't been there */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2483 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2484 && uhp->uh_prev.ptr->uh_walk != mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2485 uhp = uhp->uh_prev.ptr; |
753 | 2486 |
2487 /* go to alternate branch if we haven't been there */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2488 else if (uhp->uh_alt_next.ptr != NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2489 && uhp->uh_alt_next.ptr->uh_walk != nomark |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2490 && uhp->uh_alt_next.ptr->uh_walk != mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2491 uhp = uhp->uh_alt_next.ptr; |
753 | 2492 |
2493 /* go up in the tree if we haven't been there and we are at the | |
2494 * start of alternate branches */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2495 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2496 && uhp->uh_next.ptr->uh_walk != nomark |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2497 && uhp->uh_next.ptr->uh_walk != mark) |
798 | 2498 { |
2499 /* If still at the start we don't go through this change. */ | |
2500 if (uhp == curbuf->b_u_curhead) | |
2501 uhp->uh_walk = nomark; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2502 uhp = uhp->uh_next.ptr; |
798 | 2503 } |
753 | 2504 |
2505 else | |
2506 { | |
2507 /* need to backtrack; mark this node as useless */ | |
2508 uhp->uh_walk = nomark; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2509 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
|
2510 uhp = uhp->uh_alt_prev.ptr; |
753 | 2511 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2512 uhp = uhp->uh_next.ptr; |
753 | 2513 } |
2514 } | |
2515 | |
2516 if (uhp != NULL) /* found it */ | |
2517 break; | |
772 | 2518 |
2519 if (absolute) | |
2520 { | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2521 EMSGN(_("E830: Undo number %ld not found"), step); |
772 | 2522 return; |
2523 } | |
2524 | |
758 | 2525 if (closest == closest_start) |
753 | 2526 { |
758 | 2527 if (step < 0) |
2528 MSG(_("Already at oldest change")); | |
2529 else | |
2530 MSG(_("Already at newest change")); | |
753 | 2531 return; |
2532 } | |
2533 | |
758 | 2534 target = closest_seq; |
2535 dosec = FALSE; | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2536 dofile = FALSE; |
758 | 2537 if (step < 0) |
2538 above = TRUE; /* stop above the header */ | |
753 | 2539 } |
2540 | |
2541 /* If we found it: Follow the path to go to where we want to be. */ | |
2542 if (uhp != NULL) | |
2543 { | |
2544 /* | |
2545 * First go up the tree as much as needed. | |
2546 */ | |
2189 | 2547 while (!got_int) |
753 | 2548 { |
2189 | 2549 /* Do the change warning now, for the same reason as above. */ |
2550 change_warning(0); | |
2551 | |
753 | 2552 uhp = curbuf->b_u_curhead; |
2553 if (uhp == NULL) | |
2554 uhp = curbuf->b_u_newhead; | |
2555 else | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2556 uhp = uhp->uh_next.ptr; |
777 | 2557 if (uhp == NULL || uhp->uh_walk != mark |
2558 || (uhp->uh_seq == target && !above)) | |
753 | 2559 break; |
2560 curbuf->b_u_curhead = uhp; | |
777 | 2561 u_undoredo(TRUE); |
753 | 2562 uhp->uh_walk = nomark; /* don't go back down here */ |
2563 } | |
2564 | |
2565 /* | |
758 | 2566 * And now go down the tree (redo), branching off where needed. |
753 | 2567 */ |
2189 | 2568 while (!got_int) |
753 | 2569 { |
2189 | 2570 /* Do the change warning now, for the same reason as above. */ |
2571 change_warning(0); | |
2572 | |
2573 uhp = curbuf->b_u_curhead; | |
2574 if (uhp == NULL) | |
2575 break; | |
2576 | |
1056 | 2577 /* Go back to the first branch with a mark. */ |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2578 while (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
|
2579 && uhp->uh_alt_prev.ptr->uh_walk == mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2580 uhp = uhp->uh_alt_prev.ptr; |
1056 | 2581 |
753 | 2582 /* Find the last branch with a mark, that's the one. */ |
2583 last = uhp; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2584 while (last->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
|
2585 && 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
|
2586 last = last->uh_alt_next.ptr; |
753 | 2587 if (last != uhp) |
2588 { | |
2589 /* Make the used branch the first entry in the list of | |
2590 * alternatives to make "u" and CTRL-R take this branch. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2591 while (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
|
2592 uhp = uhp->uh_alt_prev.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2593 if (last->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
|
2594 last->uh_alt_next.ptr->uh_alt_prev.ptr = |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2595 last->uh_alt_prev.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2596 last->uh_alt_prev.ptr->uh_alt_next.ptr = last->uh_alt_next.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2597 last->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
|
2598 last->uh_alt_next.ptr = uhp; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2599 uhp->uh_alt_prev.ptr = last; |
753 | 2600 |
2181 | 2601 if (curbuf->b_u_oldhead == uhp) |
2602 curbuf->b_u_oldhead = last; | |
753 | 2603 uhp = last; |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2604 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
|
2605 uhp->uh_next.ptr->uh_prev.ptr = uhp; |
753 | 2606 } |
758 | 2607 curbuf->b_u_curhead = uhp; |
753 | 2608 |
2609 if (uhp->uh_walk != mark) | |
2610 break; /* must have reached the target */ | |
2611 | |
758 | 2612 /* Stop when going backwards in time and didn't find the exact |
2613 * header we were looking for. */ | |
2614 if (uhp->uh_seq == target && above) | |
798 | 2615 { |
2616 curbuf->b_u_seq_cur = target - 1; | |
758 | 2617 break; |
798 | 2618 } |
758 | 2619 |
777 | 2620 u_undoredo(FALSE); |
753 | 2621 |
2622 /* Advance "curhead" to below the header we last used. If it | |
2623 * becomes NULL then we need to set "newhead" to this leaf. */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2624 if (uhp->uh_prev.ptr == NULL) |
753 | 2625 curbuf->b_u_newhead = uhp; |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2626 curbuf->b_u_curhead = uhp->uh_prev.ptr; |
794 | 2627 did_undo = FALSE; |
753 | 2628 |
2629 if (uhp->uh_seq == target) /* found it! */ | |
2630 break; | |
2631 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2632 uhp = uhp->uh_prev.ptr; |
753 | 2633 if (uhp == NULL || uhp->uh_walk != mark) |
2634 { | |
777 | 2635 /* Need to redo more but can't find it... */ |
753 | 2636 EMSG2(_(e_intern2), "undo_time()"); |
2637 break; | |
2638 } | |
2639 } | |
2640 } | |
798 | 2641 u_undo_end(did_undo, absolute); |
7 | 2642 } |
2643 | |
2644 /* | |
2645 * u_undoredo: common code for undo and redo | |
2646 * | |
2647 * The lines in the file are replaced by the lines in the entry list at | |
2648 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry | |
2649 * list for the next undo/redo. | |
777 | 2650 * |
2651 * When "undo" is TRUE we go up in the tree, when FALSE we go down. | |
7 | 2652 */ |
2653 static void | |
777 | 2654 u_undoredo(undo) |
2655 int undo; | |
7 | 2656 { |
2657 char_u **newarray = NULL; | |
2658 linenr_T oldsize; | |
2659 linenr_T newsize; | |
2660 linenr_T top, bot; | |
2661 linenr_T lnum; | |
2662 linenr_T newlnum = MAXLNUM; | |
2663 long i; | |
2664 u_entry_T *uep, *nuep; | |
2665 u_entry_T *newlist = NULL; | |
2666 int old_flags; | |
2667 int new_flags; | |
2668 pos_T namedm[NMARKS]; | |
692 | 2669 visualinfo_T visualinfo; |
7 | 2670 int empty_buffer; /* buffer became empty */ |
758 | 2671 u_header_T *curhead = curbuf->b_u_curhead; |
7 | 2672 |
2189 | 2673 #ifdef FEAT_AUTOCMD |
2674 /* Don't want autocommands using the undo structures here, they are | |
2675 * invalid till the end. */ | |
2676 block_autocmds(); | |
2677 #endif | |
2678 | |
1415 | 2679 #ifdef U_DEBUG |
2680 u_check(FALSE); | |
2681 #endif | |
758 | 2682 old_flags = curhead->uh_flags; |
7 | 2683 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) + |
2684 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
2685 setpcmark(); | |
2686 | |
2687 /* | |
2688 * save marks before undo/redo | |
2689 */ | |
2690 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); | |
692 | 2691 visualinfo = curbuf->b_visual; |
7 | 2692 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count; |
2693 curbuf->b_op_start.col = 0; | |
2694 curbuf->b_op_end.lnum = 0; | |
2695 curbuf->b_op_end.col = 0; | |
2696 | |
758 | 2697 for (uep = curhead->uh_entry; uep != NULL; uep = nuep) |
7 | 2698 { |
2699 top = uep->ue_top; | |
2700 bot = uep->ue_bot; | |
2701 if (bot == 0) | |
2702 bot = curbuf->b_ml.ml_line_count + 1; | |
2703 if (top > curbuf->b_ml.ml_line_count || top >= bot | |
2704 || bot > curbuf->b_ml.ml_line_count + 1) | |
2705 { | |
2189 | 2706 #ifdef FEAT_AUTOCMD |
2707 unblock_autocmds(); | |
2708 #endif | |
7 | 2709 EMSG(_("E438: u_undo: line numbers wrong")); |
2710 changed(); /* don't want UNCHANGED now */ | |
2711 return; | |
2712 } | |
2713 | |
2714 oldsize = bot - top - 1; /* number of lines before undo */ | |
2715 newsize = uep->ue_size; /* number of lines after undo */ | |
2716 | |
2717 if (top < newlnum) | |
2718 { | |
2719 /* If the saved cursor is somewhere in this undo block, move it to | |
2720 * the remembered position. Makes "gwap" put the cursor back | |
2721 * where it was. */ | |
758 | 2722 lnum = curhead->uh_cursor.lnum; |
7 | 2723 if (lnum >= top && lnum <= top + newsize + 1) |
2724 { | |
758 | 2725 curwin->w_cursor = curhead->uh_cursor; |
7 | 2726 newlnum = curwin->w_cursor.lnum - 1; |
2727 } | |
2728 else | |
2729 { | |
2730 /* Use the first line that actually changed. Avoids that | |
2731 * undoing auto-formatting puts the cursor in the previous | |
2732 * line. */ | |
2733 for (i = 0; i < newsize && i < oldsize; ++i) | |
2734 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0) | |
2735 break; | |
2736 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL) | |
2737 { | |
2738 newlnum = top; | |
2739 curwin->w_cursor.lnum = newlnum + 1; | |
2740 } | |
2741 else if (i < newsize) | |
2742 { | |
2743 newlnum = top + i; | |
2744 curwin->w_cursor.lnum = newlnum + 1; | |
2745 } | |
2746 } | |
2747 } | |
2748 | |
2749 empty_buffer = FALSE; | |
2750 | |
2751 /* delete the lines between top and bot and save them in newarray */ | |
168 | 2752 if (oldsize > 0) |
7 | 2753 { |
168 | 2754 if ((newarray = (char_u **)U_ALLOC_LINE( |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2755 sizeof(char_u *) * oldsize)) == NULL) |
7 | 2756 { |
2757 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize)); | |
2758 /* | |
2759 * We have messed up the entry list, repair is impossible. | |
2760 * we have to free the rest of the list. | |
2761 */ | |
2762 while (uep != NULL) | |
2763 { | |
2764 nuep = uep->ue_next; | |
2765 u_freeentry(uep, uep->ue_size); | |
2766 uep = nuep; | |
2767 } | |
2768 break; | |
2769 } | |
2770 /* delete backwards, it goes faster in most cases */ | |
2771 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum) | |
2772 { | |
2773 /* what can we do when we run out of memory? */ | |
2774 if ((newarray[i] = u_save_line(lnum)) == NULL) | |
2775 do_outofmem_msg((long_u)0); | |
2776 /* remember we deleted the last line in the buffer, and a | |
2777 * dummy empty line will be inserted */ | |
2778 if (curbuf->b_ml.ml_line_count == 1) | |
2779 empty_buffer = TRUE; | |
2780 ml_delete(lnum, FALSE); | |
2781 } | |
2782 } | |
414 | 2783 else |
2784 newarray = NULL; | |
7 | 2785 |
2786 /* insert the lines in u_array between top and bot */ | |
2787 if (newsize) | |
2788 { | |
2789 for (lnum = top, i = 0; i < newsize; ++i, ++lnum) | |
2790 { | |
2791 /* | |
2792 * If the file is empty, there is an empty line 1 that we | |
2793 * should get rid of, by replacing it with the new line | |
2794 */ | |
2795 if (empty_buffer && lnum == 0) | |
2796 ml_replace((linenr_T)1, uep->ue_array[i], TRUE); | |
2797 else | |
2798 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>
parents:
2229
diff
changeset
|
2799 vim_free(uep->ue_array[i]); |
7 | 2800 } |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2801 vim_free((char_u *)uep->ue_array); |
7 | 2802 } |
2803 | |
2804 /* adjust marks */ | |
2805 if (oldsize != newsize) | |
2806 { | |
2807 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM, | |
2808 (long)newsize - (long)oldsize); | |
2809 if (curbuf->b_op_start.lnum > top + oldsize) | |
2810 curbuf->b_op_start.lnum += newsize - oldsize; | |
2811 if (curbuf->b_op_end.lnum > top + oldsize) | |
2812 curbuf->b_op_end.lnum += newsize - oldsize; | |
2813 } | |
2814 | |
2815 changed_lines(top + 1, 0, bot, newsize - oldsize); | |
2816 | |
2817 /* set '[ and '] mark */ | |
2818 if (top + 1 < curbuf->b_op_start.lnum) | |
2819 curbuf->b_op_start.lnum = top + 1; | |
2820 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) | |
2821 curbuf->b_op_end.lnum = top + 1; | |
2822 else if (top + newsize > curbuf->b_op_end.lnum) | |
2823 curbuf->b_op_end.lnum = top + newsize; | |
2824 | |
2825 u_newcount += newsize; | |
2826 u_oldcount += oldsize; | |
2827 uep->ue_size = oldsize; | |
2828 uep->ue_array = newarray; | |
2829 uep->ue_bot = top + newsize + 1; | |
2830 | |
2831 /* | |
2832 * insert this entry in front of the new entry list | |
2833 */ | |
2834 nuep = uep->ue_next; | |
2835 uep->ue_next = newlist; | |
2836 newlist = uep; | |
2837 } | |
2838 | |
758 | 2839 curhead->uh_entry = newlist; |
2840 curhead->uh_flags = new_flags; | |
7 | 2841 if ((old_flags & UH_EMPTYBUF) && bufempty()) |
2842 curbuf->b_ml.ml_flags |= ML_EMPTY; | |
2843 if (old_flags & UH_CHANGED) | |
2844 changed(); | |
2845 else | |
33 | 2846 #ifdef FEAT_NETBEANS_INTG |
2847 /* per netbeans undo rules, keep it as modified */ | |
2848 if (!isNetbeansModified(curbuf)) | |
2849 #endif | |
7 | 2850 unchanged(curbuf, FALSE); |
2851 | |
2852 /* | |
2853 * restore marks from before undo/redo | |
2854 */ | |
2855 for (i = 0; i < NMARKS; ++i) | |
758 | 2856 if (curhead->uh_namedm[i].lnum != 0) |
7 | 2857 { |
758 | 2858 curbuf->b_namedm[i] = curhead->uh_namedm[i]; |
2859 curhead->uh_namedm[i] = namedm[i]; | |
7 | 2860 } |
758 | 2861 if (curhead->uh_visual.vi_start.lnum != 0) |
692 | 2862 { |
758 | 2863 curbuf->b_visual = curhead->uh_visual; |
2864 curhead->uh_visual = visualinfo; | |
692 | 2865 } |
7 | 2866 |
2867 /* | |
2868 * If the cursor is only off by one line, put it at the same position as | |
2869 * before starting the change (for the "o" command). | |
2870 * Otherwise the cursor should go to the first undone line. | |
2871 */ | |
758 | 2872 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum |
7 | 2873 && curwin->w_cursor.lnum > 1) |
2874 --curwin->w_cursor.lnum; | |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2875 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count) |
7 | 2876 { |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2877 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum) |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2878 { |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2879 curwin->w_cursor.col = curhead->uh_cursor.col; |
7 | 2880 #ifdef FEAT_VIRTUALEDIT |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2881 if (virtual_active() && curhead->uh_cursor_vcol >= 0) |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2882 coladvance((colnr_T)curhead->uh_cursor_vcol); |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2883 else |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2884 curwin->w_cursor.coladd = 0; |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2885 #endif |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2886 } |
7 | 2887 else |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2888 beginline(BL_SOL | BL_FIX); |
7 | 2889 } |
2890 else | |
2891 { | |
2892 /* We get here with the current cursor line being past the end (eg | |
2893 * after adding lines at the end of the file, and then undoing it). | |
2894 * check_cursor() will move the cursor to the last line. Move it to | |
2895 * the first column here. */ | |
2896 curwin->w_cursor.col = 0; | |
2897 #ifdef FEAT_VIRTUALEDIT | |
2898 curwin->w_cursor.coladd = 0; | |
2899 #endif | |
2900 } | |
2901 | |
2902 /* Make sure the cursor is on an existing line and column. */ | |
2903 check_cursor(); | |
758 | 2904 |
2905 /* Remember where we are for "g-" and ":earlier 10s". */ | |
2906 curbuf->b_u_seq_cur = curhead->uh_seq; | |
777 | 2907 if (undo) |
2908 /* We are below the previous undo. However, to make ":earlier 1s" | |
2909 * work we compute this as being just above the just undone change. */ | |
2910 --curbuf->b_u_seq_cur; | |
2911 | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2912 /* Remember where we are for ":earlier 1f" and ":later 1f". */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2913 if (curhead->uh_save_nr != 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2914 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2915 if (undo) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2916 curbuf->b_u_save_nr_cur = curhead->uh_save_nr - 1; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2917 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2918 curbuf->b_u_save_nr_cur = curhead->uh_save_nr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2919 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2920 |
777 | 2921 /* The timestamp can be the same for multiple changes, just use the one of |
2922 * the undone/redone change. */ | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2923 curbuf->b_u_time_cur = curhead->uh_time; |
2189 | 2924 |
2925 #ifdef FEAT_AUTOCMD | |
2926 unblock_autocmds(); | |
2927 #endif | |
1415 | 2928 #ifdef U_DEBUG |
2929 u_check(FALSE); | |
2930 #endif | |
7 | 2931 } |
2932 | |
2933 /* | |
2934 * If we deleted or added lines, report the number of less/more lines. | |
2935 * Otherwise, report the number of changes (this may be incorrect | |
2936 * in some cases, but it's better than nothing). | |
2937 */ | |
2938 static void | |
798 | 2939 u_undo_end(did_undo, absolute) |
794 | 2940 int did_undo; /* just did an undo */ |
798 | 2941 int absolute; /* used ":undo N" */ |
7 | 2942 { |
944 | 2943 char *msgstr; |
772 | 2944 u_header_T *uhp; |
2945 char_u msgbuf[80]; | |
753 | 2946 |
7 | 2947 #ifdef FEAT_FOLDING |
2948 if ((fdo_flags & FDO_UNDO) && KeyTyped) | |
2949 foldOpenCursor(); | |
2950 #endif | |
753 | 2951 |
2952 if (global_busy /* no messages now, wait until global is finished */ | |
2953 || !messaging()) /* 'lazyredraw' set, don't do messages now */ | |
2954 return; | |
2955 | |
2956 if (curbuf->b_ml.ml_flags & ML_EMPTY) | |
2957 --u_newcount; | |
2958 | |
2959 u_oldcount -= u_newcount; | |
2960 if (u_oldcount == -1) | |
944 | 2961 msgstr = N_("more line"); |
753 | 2962 else if (u_oldcount < 0) |
944 | 2963 msgstr = N_("more lines"); |
753 | 2964 else if (u_oldcount == 1) |
944 | 2965 msgstr = N_("line less"); |
753 | 2966 else if (u_oldcount > 1) |
944 | 2967 msgstr = N_("fewer lines"); |
753 | 2968 else |
2969 { | |
2970 u_oldcount = u_newcount; | |
2971 if (u_newcount == 1) | |
944 | 2972 msgstr = N_("change"); |
753 | 2973 else |
944 | 2974 msgstr = N_("changes"); |
753 | 2975 } |
2976 | |
772 | 2977 if (curbuf->b_u_curhead != NULL) |
794 | 2978 { |
798 | 2979 /* For ":undo N" we prefer a "after #N" message. */ |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2980 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL) |
798 | 2981 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2982 uhp = curbuf->b_u_curhead->uh_next.ptr; |
798 | 2983 did_undo = FALSE; |
2984 } | |
2985 else if (did_undo) | |
794 | 2986 uhp = curbuf->b_u_curhead; |
2987 else | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2988 uhp = curbuf->b_u_curhead->uh_next.ptr; |
794 | 2989 } |
753 | 2990 else |
772 | 2991 uhp = curbuf->b_u_newhead; |
753 | 2992 |
772 | 2993 if (uhp == NULL) |
2994 *msgbuf = NUL; | |
2995 else | |
2996 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time); | |
2997 | |
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2998 #ifdef FEAT_CONCEAL |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2999 { |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3000 win_T *wp; |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3001 |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3002 FOR_ALL_WINDOWS(wp) |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3003 { |
2378
85b7dc8da5eb
Add the 'concealcursor' option to decide when the cursor line is to be
Bram Moolenaar <bram@vim.org>
parents:
2367
diff
changeset
|
3004 if (wp->w_buffer == curbuf && wp->w_p_cole > 0) |
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3005 redraw_win_later(wp, NOT_VALID); |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3006 } |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3007 } |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3008 #endif |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3009 |
794 | 3010 smsg((char_u *)_("%ld %s; %s #%ld %s"), |
777 | 3011 u_oldcount < 0 ? -u_oldcount : u_oldcount, |
944 | 3012 _(msgstr), |
794 | 3013 did_undo ? _("before") : _("after"), |
3014 uhp == NULL ? 0L : uhp->uh_seq, | |
3015 msgbuf); | |
7 | 3016 } |
3017 | |
3018 /* | |
3019 * u_sync: stop adding to the current entry list | |
3020 */ | |
3021 void | |
825 | 3022 u_sync(force) |
3023 int force; /* Also sync when no_u_sync is set. */ | |
7 | 3024 { |
825 | 3025 /* Skip it when already synced or syncing is disabled. */ |
3026 if (curbuf->b_u_synced || (!force && no_u_sync > 0)) | |
3027 return; | |
7 | 3028 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) |
3029 if (im_is_preediting()) | |
3030 return; /* XIM is busy, don't break an undo sequence */ | |
3031 #endif | |
5446 | 3032 if (get_undolevel() < 0) |
7 | 3033 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */ |
3034 else | |
3035 { | |
3036 u_getbot(); /* compute ue_bot of previous u_save */ | |
3037 curbuf->b_u_curhead = NULL; | |
3038 } | |
3039 } | |
3040 | |
3041 /* | |
772 | 3042 * ":undolist": List the leafs of the undo tree |
3043 */ | |
3044 void | |
3045 ex_undolist(eap) | |
2181 | 3046 exarg_T *eap UNUSED; |
772 | 3047 { |
3048 garray_T ga; | |
3049 u_header_T *uhp; | |
3050 int mark; | |
3051 int nomark; | |
3052 int changes = 1; | |
3053 int i; | |
3054 | |
3055 /* | |
3056 * 1: walk the tree to find all leafs, put the info in "ga". | |
3057 * 2: sort the lines | |
3058 * 3: display the list | |
3059 */ | |
3060 mark = ++lastmark; | |
3061 nomark = ++lastmark; | |
3062 ga_init2(&ga, (int)sizeof(char *), 20); | |
3063 | |
3064 uhp = curbuf->b_u_oldhead; | |
3065 while (uhp != NULL) | |
3066 { | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3067 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark |
777 | 3068 && uhp->uh_walk != mark) |
772 | 3069 { |
3070 if (ga_grow(&ga, 1) == FAIL) | |
3071 break; | |
3072 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ", | |
3073 uhp->uh_seq, changes); | |
3074 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff), | |
3075 uhp->uh_time); | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3076 if (uhp->uh_save_nr > 0) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3077 { |
2627 | 3078 while (STRLEN(IObuff) < 33) |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3079 STRCAT(IObuff, " "); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3080 vim_snprintf_add((char *)IObuff, IOSIZE, |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3081 " %3ld", uhp->uh_save_nr); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3082 } |
772 | 3083 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff); |
3084 } | |
3085 | |
3086 uhp->uh_walk = mark; | |
3087 | |
3088 /* go down in the tree if we haven't been there */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3089 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3090 && uhp->uh_prev.ptr->uh_walk != mark) |
772 | 3091 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3092 uhp = uhp->uh_prev.ptr; |
772 | 3093 ++changes; |
3094 } | |
3095 | |
3096 /* go to alternate branch if we haven't been there */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3097 else if (uhp->uh_alt_next.ptr != NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3098 && uhp->uh_alt_next.ptr->uh_walk != nomark |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3099 && uhp->uh_alt_next.ptr->uh_walk != mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3100 uhp = uhp->uh_alt_next.ptr; |
772 | 3101 |
3102 /* go up in the tree if we haven't been there and we are at the | |
3103 * start of alternate branches */ | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3104 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3105 && uhp->uh_next.ptr->uh_walk != nomark |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3106 && uhp->uh_next.ptr->uh_walk != mark) |
772 | 3107 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3108 uhp = uhp->uh_next.ptr; |
772 | 3109 --changes; |
3110 } | |
3111 | |
3112 else | |
3113 { | |
3114 /* need to backtrack; mark this node as done */ | |
3115 uhp->uh_walk = nomark; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3116 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
|
3117 uhp = uhp->uh_alt_prev.ptr; |
772 | 3118 else |
3119 { | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3120 uhp = uhp->uh_next.ptr; |
772 | 3121 --changes; |
3122 } | |
3123 } | |
3124 } | |
3125 | |
3126 if (ga.ga_len == 0) | |
3127 MSG(_("Nothing to undo")); | |
3128 else | |
3129 { | |
3130 sort_strings((char_u **)ga.ga_data, ga.ga_len); | |
3131 | |
3132 msg_start(); | |
2627 | 3133 msg_puts_attr((char_u *)_("number changes when saved"), |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3134 hl_attr(HLF_T)); |
772 | 3135 for (i = 0; i < ga.ga_len && !got_int; ++i) |
3136 { | |
3137 msg_putchar('\n'); | |
3138 if (got_int) | |
3139 break; | |
3140 msg_puts(((char_u **)ga.ga_data)[i]); | |
3141 } | |
3142 msg_end(); | |
3143 | |
3144 ga_clear_strings(&ga); | |
3145 } | |
3146 } | |
3147 | |
3148 /* | |
3149 * Put the timestamp of an undo header in "buf[buflen]" in a nice format. | |
3150 */ | |
3151 static void | |
3152 u_add_time(buf, buflen, tt) | |
3153 char_u *buf; | |
3154 size_t buflen; | |
3155 time_t tt; | |
3156 { | |
3157 #ifdef HAVE_STRFTIME | |
3158 struct tm *curtime; | |
3159 | |
3160 if (time(NULL) - tt >= 100) | |
3161 { | |
3162 curtime = localtime(&tt); | |
2627 | 3163 if (time(NULL) - tt < (60L * 60L * 12L)) |
3164 /* within 12 hours */ | |
3165 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime); | |
3166 else | |
3751 | 3167 /* longer ago */ |
2689 | 3168 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime); |
772 | 3169 } |
3170 else | |
3171 #endif | |
835 | 3172 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"), |
772 | 3173 (long)(time(NULL) - tt)); |
3174 } | |
3175 | |
3176 /* | |
697 | 3177 * ":undojoin": continue adding to the last entry list |
3178 */ | |
3179 void | |
3180 ex_undojoin(eap) | |
2181 | 3181 exarg_T *eap UNUSED; |
697 | 3182 { |
839 | 3183 if (curbuf->b_u_newhead == NULL) |
3184 return; /* nothing changed before */ | |
3185 if (curbuf->b_u_curhead != NULL) | |
3186 { | |
3187 EMSG(_("E790: undojoin is not allowed after undo")); | |
3188 return; | |
3189 } | |
697 | 3190 if (!curbuf->b_u_synced) |
3191 return; /* already unsynced */ | |
5446 | 3192 if (get_undolevel() < 0) |
697 | 3193 return; /* no entries, nothing to do */ |
3194 else | |
3195 { | |
3196 /* Go back to the last entry */ | |
3197 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
3198 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */ | |
3199 } | |
3200 } | |
3201 | |
3202 /* | |
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2378
diff
changeset
|
3203 * Called after writing or reloading the file and setting b_changed to FALSE. |
7 | 3204 * Now an undo means that the buffer is modified. |
3205 */ | |
3206 void | |
3207 u_unchanged(buf) | |
3208 buf_T *buf; | |
3209 { | |
758 | 3210 u_unch_branch(buf->b_u_oldhead); |
3211 buf->b_did_warn = FALSE; | |
3212 } | |
3213 | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3214 /* |
2482
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3215 * After reloading a buffer which was saved for 'undoreload': Find the first |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3216 * line that was changed and set the cursor there. |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3217 */ |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3218 void |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3219 u_find_first_changed() |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3220 { |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3221 u_header_T *uhp = curbuf->b_u_newhead; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3222 u_entry_T *uep; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3223 linenr_T lnum; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3224 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3225 if (curbuf->b_u_curhead != NULL || uhp == NULL) |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3226 return; /* undid something in an autocmd? */ |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3227 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3228 /* Check that the last undo block was for the whole file. */ |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3229 uep = uhp->uh_entry; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3230 if (uep->ue_top != 0 || uep->ue_bot != 0) |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3231 return; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3232 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3233 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3234 && lnum <= uep->ue_size; ++lnum) |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3235 if (STRCMP(ml_get_buf(curbuf, lnum, FALSE), |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3236 uep->ue_array[lnum - 1]) != 0) |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3237 { |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3238 clearpos(&(uhp->uh_cursor)); |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3239 uhp->uh_cursor.lnum = lnum; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3240 return; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3241 } |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3242 if (curbuf->b_ml.ml_line_count != uep->ue_size) |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3243 { |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3244 /* lines added or deleted at the end, put the cursor there */ |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3245 clearpos(&(uhp->uh_cursor)); |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3246 uhp->uh_cursor.lnum = lnum; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3247 } |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3248 } |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3249 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3250 /* |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3251 * 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>
parents:
2280
diff
changeset
|
3252 * used for "u". |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3253 */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3254 void |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3255 u_update_save_nr(buf) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3256 buf_T *buf; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3257 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3258 u_header_T *uhp; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3259 |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3260 ++buf->b_u_save_nr_last; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3261 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:
2280
diff
changeset
|
3262 uhp = buf->b_u_curhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3263 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3264 uhp = uhp->uh_next.ptr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3265 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3266 uhp = buf->b_u_newhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3267 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3268 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
|
3269 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3270 |
758 | 3271 static void |
3272 u_unch_branch(uhp) | |
3273 u_header_T *uhp; | |
3274 { | |
753 | 3275 u_header_T *uh; |
7 | 3276 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3277 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr) |
758 | 3278 { |
7 | 3279 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
|
3280 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
|
3281 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */ |
758 | 3282 } |
7 | 3283 } |
3284 | |
3285 /* | |
3286 * Get pointer to last added entry. | |
3287 * If it's not valid, give an error message and return NULL. | |
3288 */ | |
3289 static u_entry_T * | |
3290 u_get_headentry() | |
3291 { | |
3292 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL) | |
3293 { | |
3294 EMSG(_("E439: undo list corrupt")); | |
3295 return NULL; | |
3296 } | |
3297 return curbuf->b_u_newhead->uh_entry; | |
3298 } | |
3299 | |
3300 /* | |
3301 * u_getbot(): compute the line number of the previous u_save | |
3302 * It is called only when b_u_synced is FALSE. | |
3303 */ | |
3304 static void | |
3305 u_getbot() | |
3306 { | |
3307 u_entry_T *uep; | |
3308 linenr_T extra; | |
3309 | |
3310 uep = u_get_headentry(); /* check for corrupt undo list */ | |
3311 if (uep == NULL) | |
3312 return; | |
3313 | |
3314 uep = curbuf->b_u_newhead->uh_getbot_entry; | |
3315 if (uep != NULL) | |
3316 { | |
3317 /* | |
3318 * the new ue_bot is computed from the number of lines that has been | |
3319 * inserted (0 - deleted) since calling u_save. This is equal to the | |
3320 * old line count subtracted from the current line count. | |
3321 */ | |
3322 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount; | |
3323 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra; | |
3324 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count) | |
3325 { | |
3326 EMSG(_("E440: undo line missing")); | |
3327 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will | |
3328 * get all the old lines back | |
3329 * without deleting the current | |
3330 * ones */ | |
3331 } | |
3332 | |
3333 curbuf->b_u_newhead->uh_getbot_entry = NULL; | |
3334 } | |
3335 | |
3336 curbuf->b_u_synced = TRUE; | |
3337 } | |
3338 | |
3339 /* | |
1415 | 3340 * Free one header "uhp" and its entry list and adjust the pointers. |
7 | 3341 */ |
3342 static void | |
758 | 3343 u_freeheader(buf, uhp, uhpp) |
168 | 3344 buf_T *buf; |
753 | 3345 u_header_T *uhp; |
3346 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
7 | 3347 { |
1415 | 3348 u_header_T *uhap; |
3349 | |
753 | 3350 /* When there is an alternate redo list free that branch completely, |
3351 * 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
|
3352 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
|
3353 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp); |
7 | 3354 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3355 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
|
3356 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
7 | 3357 |
753 | 3358 /* 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
|
3359 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
|
3360 buf->b_u_oldhead = uhp->uh_prev.ptr; |
7 | 3361 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3362 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr; |
7 | 3363 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3364 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
|
3365 buf->b_u_newhead = uhp->uh_next.ptr; |
7 | 3366 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3367 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
|
3368 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
|
3369 uhap->uh_next.ptr = uhp->uh_next.ptr; |
7 | 3370 |
753 | 3371 u_freeentries(buf, uhp, uhpp); |
3372 } | |
3373 | |
3374 /* | |
758 | 3375 * Free an alternate branch and any following alternate branches. |
753 | 3376 */ |
3377 static void | |
3378 u_freebranch(buf, uhp, uhpp) | |
3379 buf_T *buf; | |
3380 u_header_T *uhp; | |
3381 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
3382 { | |
3383 u_header_T *tofree, *next; | |
3384 | |
1440 | 3385 /* If this is the top branch we may need to use u_freeheader() to update |
3386 * all the pointers. */ | |
3387 if (uhp == buf->b_u_oldhead) | |
3388 { | |
5448 | 3389 while (buf->b_u_oldhead != NULL) |
3390 u_freeheader(buf, buf->b_u_oldhead, uhpp); | |
1440 | 3391 return; |
3392 } | |
3393 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3394 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
|
3395 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
753 | 3396 |
3397 next = uhp; | |
3398 while (next != NULL) | |
3399 { | |
3400 tofree = next; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3401 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
|
3402 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
|
3403 next = tofree->uh_prev.ptr; |
753 | 3404 u_freeentries(buf, tofree, uhpp); |
3405 } | |
3406 } | |
3407 | |
3408 /* | |
3409 * Free all the undo entries for one header and the header itself. | |
3410 * This means that "uhp" is invalid when returning. | |
3411 */ | |
3412 static void | |
3413 u_freeentries(buf, uhp, uhpp) | |
3414 buf_T *buf; | |
3415 u_header_T *uhp; | |
3416 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
3417 { | |
3418 u_entry_T *uep, *nuep; | |
3419 | |
3420 /* Check for pointers to the header that become invalid now. */ | |
3421 if (buf->b_u_curhead == uhp) | |
3422 buf->b_u_curhead = NULL; | |
1415 | 3423 if (buf->b_u_newhead == uhp) |
3424 buf->b_u_newhead = NULL; /* freeing the newest entry */ | |
753 | 3425 if (uhpp != NULL && uhp == *uhpp) |
3426 *uhpp = NULL; | |
3427 | |
3428 for (uep = uhp->uh_entry; uep != NULL; uep = nuep) | |
3429 { | |
3430 nuep = uep->ue_next; | |
3431 u_freeentry(uep, uep->ue_size); | |
3432 } | |
3433 | |
1415 | 3434 #ifdef U_DEBUG |
3435 uhp->uh_magic = 0; | |
3436 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3437 vim_free((char_u *)uhp); |
168 | 3438 --buf->b_u_numhead; |
7 | 3439 } |
3440 | |
3441 /* | |
3442 * free entry 'uep' and 'n' lines in uep->ue_array[] | |
3443 */ | |
3444 static void | |
3445 u_freeentry(uep, n) | |
3446 u_entry_T *uep; | |
3447 long n; | |
3448 { | |
414 | 3449 while (n > 0) |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3450 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
|
3451 vim_free((char_u *)uep->ue_array); |
1415 | 3452 #ifdef U_DEBUG |
3453 uep->ue_magic = 0; | |
3454 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3455 vim_free((char_u *)uep); |
7 | 3456 } |
3457 | |
3458 /* | |
3459 * invalidate the undo buffer; called when storage has already been released | |
3460 */ | |
3461 void | |
3462 u_clearall(buf) | |
3463 buf_T *buf; | |
3464 { | |
3465 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL; | |
3466 buf->b_u_synced = TRUE; | |
3467 buf->b_u_numhead = 0; | |
3468 buf->b_u_line_ptr = NULL; | |
3469 buf->b_u_line_lnum = 0; | |
3470 } | |
3471 | |
3472 /* | |
3473 * save the line "lnum" for the "U" command | |
3474 */ | |
3475 void | |
3476 u_saveline(lnum) | |
3477 linenr_T lnum; | |
3478 { | |
3479 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */ | |
3480 return; | |
356 | 3481 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */ |
7 | 3482 return; |
3483 u_clearline(); | |
3484 curbuf->b_u_line_lnum = lnum; | |
3485 if (curwin->w_cursor.lnum == lnum) | |
3486 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3487 else | |
3488 curbuf->b_u_line_colnr = 0; | |
3489 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL) | |
3490 do_outofmem_msg((long_u)0); | |
3491 } | |
3492 | |
3493 /* | |
3494 * clear the line saved for the "U" command | |
3495 * (this is used externally for crossing a line while in insert mode) | |
3496 */ | |
3497 void | |
3498 u_clearline() | |
3499 { | |
3500 if (curbuf->b_u_line_ptr != NULL) | |
3501 { | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3502 vim_free(curbuf->b_u_line_ptr); |
7 | 3503 curbuf->b_u_line_ptr = NULL; |
3504 curbuf->b_u_line_lnum = 0; | |
3505 } | |
3506 } | |
3507 | |
3508 /* | |
3509 * Implementation of the "U" command. | |
3510 * Differentiation from vi: "U" can be undone with the next "U". | |
3511 * 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
|
3512 * Careful: may trigger autocommands that reload the buffer. |
7 | 3513 */ |
3514 void | |
3515 u_undoline() | |
3516 { | |
3517 colnr_T t; | |
3518 char_u *oldp; | |
3519 | |
3520 if (undo_off) | |
3521 return; | |
3522 | |
1534 | 3523 if (curbuf->b_u_line_ptr == NULL |
3524 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count) | |
7 | 3525 { |
3526 beep_flush(); | |
3527 return; | |
3528 } | |
1534 | 3529 |
3530 /* first save the line for the 'u' command */ | |
7 | 3531 if (u_savecommon(curbuf->b_u_line_lnum - 1, |
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2378
diff
changeset
|
3532 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL) |
7 | 3533 return; |
3534 oldp = u_save_line(curbuf->b_u_line_lnum); | |
3535 if (oldp == NULL) | |
3536 { | |
3537 do_outofmem_msg((long_u)0); | |
3538 return; | |
3539 } | |
3540 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE); | |
3541 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
|
3542 vim_free(curbuf->b_u_line_ptr); |
7 | 3543 curbuf->b_u_line_ptr = oldp; |
3544 | |
3545 t = curbuf->b_u_line_colnr; | |
3546 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum) | |
3547 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3548 curwin->w_cursor.col = t; | |
3549 curwin->w_cursor.lnum = curbuf->b_u_line_lnum; | |
1534 | 3550 check_cursor_col(); |
7 | 3551 } |
3552 | |
3553 /* | |
168 | 3554 * Free all allocated memory blocks for the buffer 'buf'. |
3555 */ | |
3556 void | |
3557 u_blockfree(buf) | |
3558 buf_T *buf; | |
3559 { | |
753 | 3560 while (buf->b_u_oldhead != NULL) |
758 | 3561 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
|
3562 vim_free(buf->b_u_line_ptr); |
7 | 3563 } |
3564 | |
3565 /* | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3566 * 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
|
3567 * Returns NULL when out of memory. |
7 | 3568 */ |
3569 static char_u * | |
3570 u_save_line(lnum) | |
3571 linenr_T lnum; | |
3572 { | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3573 return vim_strsave(ml_get(lnum)); |
7 | 3574 } |
3575 | |
3576 /* | |
3577 * Check if the 'modified' flag is set, or 'ff' has changed (only need to | |
3578 * check the first character, because it can only be "dos", "unix" or "mac"). | |
3579 * "nofile" and "scratch" type buffers are considered to always be unchanged. | |
3580 */ | |
3581 int | |
3582 bufIsChanged(buf) | |
3583 buf_T *buf; | |
3584 { | |
3585 return | |
3586 #ifdef FEAT_QUICKFIX | |
3587 !bt_dontwrite(buf) && | |
3588 #endif | |
2685 | 3589 (buf->b_changed || file_ff_differs(buf, TRUE)); |
7 | 3590 } |
3591 | |
3592 int | |
3593 curbufIsChanged() | |
3594 { | |
3595 return | |
3596 #ifdef FEAT_QUICKFIX | |
3597 !bt_dontwrite(curbuf) && | |
3598 #endif | |
2685 | 3599 (curbuf->b_changed || file_ff_differs(curbuf, TRUE)); |
7 | 3600 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3601 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3602 #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
|
3603 /* |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3604 * 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
|
3605 * Recursive. |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3606 */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3607 void |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3608 u_eval_tree(first_uhp, list) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3609 u_header_T *first_uhp; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3610 list_T *list; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3611 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3612 u_header_T *uhp = first_uhp; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3613 dict_T *dict; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3614 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3615 while (uhp != NULL) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3616 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3617 dict = dict_alloc(); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3618 if (dict == NULL) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3619 return; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3620 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:
2281
diff
changeset
|
3621 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3622 if (uhp == curbuf->b_u_newhead) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3623 dict_add_nr_str(dict, "newhead", 1, NULL); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3624 if (uhp == curbuf->b_u_curhead) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3625 dict_add_nr_str(dict, "curhead", 1, NULL); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3626 if (uhp->uh_save_nr > 0) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3627 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3628 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3629 if (uhp->uh_alt_next.ptr != NULL) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3630 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3631 list_T *alt_list = list_alloc(); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3632 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3633 if (alt_list != NULL) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
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3634 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3635 /* Recursive call to add alternate undo tree. */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
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3636 u_eval_tree(uhp->uh_alt_next.ptr, alt_list); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3637 dict_add_list(dict, "alt", alt_list); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3638 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3639 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3640 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3641 list_append_dict(list, dict); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3642 uhp = uhp->uh_prev.ptr; |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3643 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3644 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3645 #endif |