Mercurial > vim
annotate src/undo.c @ 9714:7cccb8851a96
Added tag v7.4.2132 for changeset 058e5ea0400e480393247498e1b45d3d7d69aa5d
author | Christian Brabandt <cb@256bit.org> |
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date | Sat, 30 Jul 2016 23:15:07 +0200 |
parents | adc7212951ee |
children | 4aead6a9b7a9 |
rev | line source |
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7 | 1 /* vi:set ts=8 sts=4 sw=4: |
2 * | |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 | |
10 /* | |
11 * undo.c: multi level undo facility | |
12 * | |
13 * The saved lines are stored in a list of lists (one for each buffer): | |
14 * | |
15 * b_u_oldhead------------------------------------------------+ | |
16 * | | |
17 * V | |
18 * +--------------+ +--------------+ +--------------+ | |
19 * b_u_newhead--->| u_header | | u_header | | u_header | | |
20 * | uh_next------>| uh_next------>| uh_next---->NULL | |
21 * NULL<--------uh_prev |<---------uh_prev |<---------uh_prev | | |
22 * | uh_entry | | uh_entry | | uh_entry | | |
23 * +--------|-----+ +--------|-----+ +--------|-----+ | |
24 * | | | | |
25 * V V V | |
26 * +--------------+ +--------------+ +--------------+ | |
27 * | u_entry | | u_entry | | u_entry | | |
28 * | ue_next | | ue_next | | ue_next | | |
29 * +--------|-----+ +--------|-----+ +--------|-----+ | |
30 * | | | | |
31 * V V V | |
32 * +--------------+ NULL NULL | |
33 * | u_entry | | |
34 * | ue_next | | |
35 * +--------|-----+ | |
36 * | | |
37 * V | |
38 * etc. | |
39 * | |
40 * Each u_entry list contains the information for one undo or redo. | |
41 * curbuf->b_u_curhead points to the header of the last undo (the next redo), | |
758 | 42 * or is NULL if nothing has been undone (end of the branch). |
7 | 43 * |
753 | 44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at |
45 * each point in the list a branch may appear for an alternate to redo. The | |
46 * uh_seq field is numbered sequentially to be able to find a newer or older | |
47 * branch. | |
48 * | |
758 | 49 * +---------------+ +---------------+ |
50 * b_u_oldhead --->| u_header | | u_header | | |
51 * | uh_alt_next ---->| uh_alt_next ----> NULL | |
52 * NULL <----- uh_alt_prev |<------ uh_alt_prev | | |
53 * | uh_prev | | uh_prev | | |
54 * +-----|---------+ +-----|---------+ | |
55 * | | | |
56 * V V | |
57 * +---------------+ +---------------+ | |
58 * | u_header | | u_header | | |
59 * | uh_alt_next | | uh_alt_next | | |
60 * b_u_newhead --->| uh_alt_prev | | uh_alt_prev | | |
61 * | uh_prev | | uh_prev | | |
62 * +-----|---------+ +-----|---------+ | |
63 * | | | |
64 * V V | |
65 * NULL +---------------+ +---------------+ | |
66 * | u_header | | u_header | | |
67 * | uh_alt_next ---->| uh_alt_next | | |
68 * | uh_alt_prev |<------ uh_alt_prev | | |
69 * | uh_prev | | uh_prev | | |
70 * +-----|---------+ +-----|---------+ | |
71 * | | | |
72 * etc. etc. | |
73 * | |
74 * | |
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75 * All data is allocated and will all be freed when the buffer is unloaded. |
7 | 76 */ |
77 | |
1415 | 78 /* Uncomment the next line for including the u_check() function. This warns |
79 * for errors in the debug information. */ | |
80 /* #define U_DEBUG 1 */ | |
81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */ | |
82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */ | |
83 | |
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 | |
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103 static long get_undolevel(void); |
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104 static void u_unch_branch(u_header_T *uhp); |
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105 static u_entry_T *u_get_headentry(void); |
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106 static void u_getbot(void); |
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107 static void u_doit(int count); |
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108 static void u_undoredo(int undo); |
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109 static void u_undo_end(int did_undo, int absolute); |
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110 static void u_add_time(char_u *buf, size_t buflen, time_t tt); |
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111 static void u_freeheader(buf_T *buf, u_header_T *uhp, u_header_T **uhpp); |
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112 static void u_freebranch(buf_T *buf, u_header_T *uhp, u_header_T **uhpp); |
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113 static void u_freeentries(buf_T *buf, u_header_T *uhp, u_header_T **uhpp); |
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114 static void u_freeentry(u_entry_T *, long); |
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115 #ifdef FEAT_PERSISTENT_UNDO |
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116 static void corruption_error(char *mesg, char_u *file_name); |
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117 static void u_free_uhp(u_header_T *uhp); |
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118 static int undo_write(bufinfo_T *bi, char_u *ptr, size_t len); |
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119 # ifdef FEAT_CRYPT |
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120 static int undo_flush(bufinfo_T *bi); |
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121 # endif |
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122 static int fwrite_crypt(bufinfo_T *bi, char_u *ptr, size_t len); |
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123 static int undo_write_bytes(bufinfo_T *bi, long_u nr, int len); |
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124 static void put_header_ptr(bufinfo_T *bi, u_header_T *uhp); |
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125 static int undo_read_4c(bufinfo_T *bi); |
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126 static int undo_read_2c(bufinfo_T *bi); |
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127 static int undo_read_byte(bufinfo_T *bi); |
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128 static time_t undo_read_time(bufinfo_T *bi); |
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129 static int undo_read(bufinfo_T *bi, char_u *buffer, size_t size); |
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130 static char_u *read_string_decrypt(bufinfo_T *bi, int len); |
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131 static int serialize_header(bufinfo_T *bi, char_u *hash); |
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132 static int serialize_uhp(bufinfo_T *bi, u_header_T *uhp); |
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133 static u_header_T *unserialize_uhp(bufinfo_T *bi, char_u *file_name); |
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134 static int serialize_uep(bufinfo_T *bi, u_entry_T *uep); |
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135 static u_entry_T *unserialize_uep(bufinfo_T *bi, int *error, char_u *file_name); |
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136 static void serialize_pos(bufinfo_T *bi, pos_T pos); |
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137 static void unserialize_pos(bufinfo_T *bi, pos_T *pos); |
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138 static void serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info); |
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139 static void unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info); |
168 | 140 #endif |
7 | 141 |
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142 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE) |
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143 static char_u *u_save_line(linenr_T); |
7 | 144 |
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145 /* used in undo_end() to report number of added and deleted lines */ |
7 | 146 static long u_newcount, u_oldcount; |
147 | |
148 /* | |
149 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember | |
150 * the action that "u" should do. | |
151 */ | |
152 static int undo_undoes = FALSE; | |
153 | |
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154 static int lastmark = 0; |
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155 |
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156 #if defined(U_DEBUG) || defined(PROTO) |
1415 | 157 /* |
158 * Check the undo structures for being valid. Print a warning when something | |
159 * looks wrong. | |
160 */ | |
161 static int seen_b_u_curhead; | |
162 static int seen_b_u_newhead; | |
163 static int header_count; | |
164 | |
165 static void | |
166 u_check_tree(u_header_T *uhp, | |
167 u_header_T *exp_uh_next, | |
168 u_header_T *exp_uh_alt_prev) | |
169 { | |
170 u_entry_T *uep; | |
171 | |
172 if (uhp == NULL) | |
173 return; | |
174 ++header_count; | |
175 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1) | |
176 { | |
177 EMSG("b_u_curhead found twice (looping?)"); | |
178 return; | |
179 } | |
180 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1) | |
181 { | |
182 EMSG("b_u_newhead found twice (looping?)"); | |
183 return; | |
184 } | |
185 | |
186 if (uhp->uh_magic != UH_MAGIC) | |
187 EMSG("uh_magic wrong (may be using freed memory)"); | |
188 else | |
189 { | |
190 /* Check pointers back are correct. */ | |
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191 if (uhp->uh_next.ptr != exp_uh_next) |
1415 | 192 { |
193 EMSG("uh_next wrong"); | |
194 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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195 exp_uh_next, uhp->uh_next.ptr); |
1415 | 196 } |
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197 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev) |
1415 | 198 { |
199 EMSG("uh_alt_prev wrong"); | |
200 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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201 exp_uh_alt_prev, uhp->uh_alt_prev.ptr); |
1415 | 202 } |
203 | |
204 /* Check the undo tree at this header. */ | |
205 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) | |
206 { | |
207 if (uep->ue_magic != UE_MAGIC) | |
208 { | |
209 EMSG("ue_magic wrong (may be using freed memory)"); | |
210 break; | |
211 } | |
212 } | |
213 | |
214 /* Check the next alt tree. */ | |
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215 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp); |
1415 | 216 |
217 /* Check the next header in this branch. */ | |
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218 u_check_tree(uhp->uh_prev.ptr, uhp, NULL); |
1415 | 219 } |
220 } | |
221 | |
2189 | 222 static void |
1415 | 223 u_check(int newhead_may_be_NULL) |
224 { | |
225 seen_b_u_newhead = 0; | |
226 seen_b_u_curhead = 0; | |
227 header_count = 0; | |
228 | |
229 u_check_tree(curbuf->b_u_oldhead, NULL, NULL); | |
230 | |
231 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL | |
232 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL)) | |
233 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead); | |
234 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0) | |
235 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead); | |
236 if (header_count != curbuf->b_u_numhead) | |
237 { | |
238 EMSG("b_u_numhead invalid"); | |
239 smsg((char_u *)"expected: %ld, actual: %ld", | |
240 (long)header_count, (long)curbuf->b_u_numhead); | |
241 } | |
242 } | |
243 #endif | |
244 | |
7 | 245 /* |
344 | 246 * Save the current line for both the "u" and "U" command. |
4303 | 247 * Careful: may trigger autocommands that reload the buffer. |
344 | 248 * Returns OK or FAIL. |
7 | 249 */ |
250 int | |
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251 u_save_cursor(void) |
7 | 252 { |
253 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1), | |
254 (linenr_T)(curwin->w_cursor.lnum + 1))); | |
255 } | |
256 | |
257 /* | |
258 * Save the lines between "top" and "bot" for both the "u" and "U" command. | |
259 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1. | |
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260 * Careful: may trigger autocommands that reload the buffer. |
7 | 261 * Returns FAIL when lines could not be saved, OK otherwise. |
262 */ | |
263 int | |
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264 u_save(linenr_T top, linenr_T bot) |
7 | 265 { |
266 if (undo_off) | |
267 return OK; | |
268 | |
4303 | 269 if (top > curbuf->b_ml.ml_line_count |
270 || top >= bot | |
271 || bot > curbuf->b_ml.ml_line_count + 1) | |
7 | 272 return FALSE; /* rely on caller to do error messages */ |
273 | |
274 if (top + 2 == bot) | |
275 u_saveline((linenr_T)(top + 1)); | |
276 | |
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277 return (u_savecommon(top, bot, (linenr_T)0, FALSE)); |
7 | 278 } |
279 | |
280 /* | |
2181 | 281 * Save the line "lnum" (used by ":s" and "~" command). |
7 | 282 * The line is replaced, so the new bottom line is lnum + 1. |
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283 * Careful: may trigger autocommands that reload the buffer. |
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284 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 285 */ |
286 int | |
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287 u_savesub(linenr_T lnum) |
7 | 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 | |
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302 u_inssub(linenr_T lnum) |
7 | 303 { |
304 if (undo_off) | |
305 return OK; | |
306 | |
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307 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE)); |
7 | 308 } |
309 | |
310 /* | |
2181 | 311 * Save the lines "lnum" - "lnum" + nlines (used by delete command). |
7 | 312 * The lines are deleted, so the new bottom line is lnum, unless the buffer |
313 * becomes empty. | |
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314 * Careful: may trigger autocommands that reload the buffer. |
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315 * Returns FAIL when lines could not be saved, OK otherwise. |
7 | 316 */ |
317 int | |
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318 u_savedel(linenr_T lnum, long nlines) |
7 | 319 { |
320 if (undo_off) | |
321 return OK; | |
322 | |
323 return (u_savecommon(lnum - 1, lnum + nlines, | |
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324 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE)); |
7 | 325 } |
326 | |
632 | 327 /* |
328 * Return TRUE when undo is allowed. Otherwise give an error message and | |
329 * return FALSE. | |
330 */ | |
912 | 331 int |
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332 undo_allowed(void) |
632 | 333 { |
334 /* Don't allow changes when 'modifiable' is off. */ | |
335 if (!curbuf->b_p_ma) | |
336 { | |
337 EMSG(_(e_modifiable)); | |
338 return FALSE; | |
339 } | |
340 | |
341 #ifdef HAVE_SANDBOX | |
342 /* In the sandbox it's not allowed to change the text. */ | |
343 if (sandbox != 0) | |
344 { | |
345 EMSG(_(e_sandbox)); | |
346 return FALSE; | |
347 } | |
348 #endif | |
349 | |
350 /* Don't allow changes in the buffer while editing the cmdline. The | |
351 * caller of getcmdline() may get confused. */ | |
634 | 352 if (textlock != 0) |
632 | 353 { |
354 EMSG(_(e_secure)); | |
355 return FALSE; | |
356 } | |
357 | |
358 return TRUE; | |
359 } | |
360 | |
2189 | 361 /* |
5446 | 362 * Get the undolevle value for the current buffer. |
363 */ | |
364 static long | |
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365 get_undolevel(void) |
5446 | 366 { |
367 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL) | |
368 return p_ul; | |
369 return curbuf->b_p_ul; | |
370 } | |
371 | |
372 /* | |
2189 | 373 * Common code for various ways to save text before a change. |
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374 * "top" is the line above the first changed line. |
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375 * "bot" is the line below the last changed line. |
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376 * "newbot" is the new bottom line. Use zero when not known. |
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377 * "reload" is TRUE when saving for a buffer reload. |
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378 * Careful: may trigger autocommands that reload the buffer. |
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379 * Returns FAIL when lines could not be saved, OK otherwise. |
2189 | 380 */ |
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381 int |
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382 u_savecommon( |
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383 linenr_T top, |
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384 linenr_T bot, |
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385 linenr_T newbot, |
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386 int reload) |
7 | 387 { |
753 | 388 linenr_T lnum; |
389 long i; | |
390 u_header_T *uhp; | |
391 u_header_T *old_curhead; | |
392 u_entry_T *uep; | |
393 u_entry_T *prev_uep; | |
394 long size; | |
7 | 395 |
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396 if (!reload) |
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397 { |
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398 /* When making changes is not allowed return FAIL. It's a crude way |
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399 * to make all change commands fail. */ |
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400 if (!undo_allowed()) |
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401 return FAIL; |
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402 |
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403 #ifdef FEAT_NETBEANS_INTG |
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404 /* |
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405 * Netbeans defines areas that cannot be modified. Bail out here when |
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406 * trying to change text in a guarded area. |
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407 */ |
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408 if (netbeans_active()) |
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409 { |
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410 if (netbeans_is_guarded(top, bot)) |
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411 { |
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412 EMSG(_(e_guarded)); |
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413 return FAIL; |
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414 } |
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415 if (curbuf->b_p_ro) |
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416 { |
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417 EMSG(_(e_nbreadonly)); |
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418 return FAIL; |
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419 } |
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420 } |
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421 #endif |
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422 |
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423 #ifdef FEAT_AUTOCMD |
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424 /* |
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425 * Saving text for undo means we are going to make a change. Give a |
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426 * warning for a read-only file before making the change, so that the |
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427 * FileChangedRO event can replace the buffer with a read-write version |
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428 * (e.g., obtained from a source control system). |
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429 */ |
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430 change_warning(0); |
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431 if (bot > curbuf->b_ml.ml_line_count + 1) |
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432 { |
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433 /* This happens when the FileChangedRO autocommand changes the |
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434 * file in a way it becomes shorter. */ |
5621 | 435 EMSG(_("E881: Line count changed unexpectedly")); |
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436 return FAIL; |
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437 } |
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438 #endif |
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439 } |
7 | 440 |
1415 | 441 #ifdef U_DEBUG |
442 u_check(FALSE); | |
443 #endif | |
7 | 444 |
445 size = bot - top - 1; | |
446 | |
447 /* | |
2189 | 448 * If curbuf->b_u_synced == TRUE make a new header. |
7 | 449 */ |
450 if (curbuf->b_u_synced) | |
451 { | |
452 #ifdef FEAT_JUMPLIST | |
453 /* Need to create new entry in b_changelist. */ | |
454 curbuf->b_new_change = TRUE; | |
455 #endif | |
456 | |
5446 | 457 if (get_undolevel() >= 0) |
753 | 458 { |
459 /* | |
460 * Make a new header entry. Do this first so that we don't mess | |
461 * up the undo info when out of memory. | |
462 */ | |
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463 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
753 | 464 if (uhp == NULL) |
465 goto nomem; | |
1415 | 466 #ifdef U_DEBUG |
467 uhp->uh_magic = UH_MAGIC; | |
468 #endif | |
753 | 469 } |
766 | 470 else |
471 uhp = NULL; | |
753 | 472 |
7 | 473 /* |
758 | 474 * If we undid more than we redid, move the entry lists before and |
475 * including curbuf->b_u_curhead to an alternate branch. | |
7 | 476 */ |
753 | 477 old_curhead = curbuf->b_u_curhead; |
478 if (old_curhead != NULL) | |
479 { | |
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480 curbuf->b_u_newhead = old_curhead->uh_next.ptr; |
753 | 481 curbuf->b_u_curhead = NULL; |
482 } | |
7 | 483 |
484 /* | |
485 * free headers to keep the size right | |
486 */ | |
5446 | 487 while (curbuf->b_u_numhead > get_undolevel() |
488 && curbuf->b_u_oldhead != NULL) | |
753 | 489 { |
758 | 490 u_header_T *uhfree = curbuf->b_u_oldhead; |
753 | 491 |
1415 | 492 if (uhfree == old_curhead) |
493 /* Can't reconnect the branch, delete all of it. */ | |
494 u_freebranch(curbuf, uhfree, &old_curhead); | |
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495 else if (uhfree->uh_alt_next.ptr == NULL) |
1415 | 496 /* There is no branch, only free one header. */ |
758 | 497 u_freeheader(curbuf, uhfree, &old_curhead); |
753 | 498 else |
499 { | |
500 /* Free the oldest alternate branch as a whole. */ | |
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501 while (uhfree->uh_alt_next.ptr != NULL) |
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502 uhfree = uhfree->uh_alt_next.ptr; |
758 | 503 u_freebranch(curbuf, uhfree, &old_curhead); |
753 | 504 } |
1415 | 505 #ifdef U_DEBUG |
506 u_check(TRUE); | |
507 #endif | |
753 | 508 } |
7 | 509 |
766 | 510 if (uhp == NULL) /* no undo at all */ |
7 | 511 { |
753 | 512 if (old_curhead != NULL) |
513 u_freebranch(curbuf, old_curhead, NULL); | |
7 | 514 curbuf->b_u_synced = FALSE; |
515 return OK; | |
516 } | |
517 | |
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518 uhp->uh_prev.ptr = NULL; |
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519 uhp->uh_next.ptr = curbuf->b_u_newhead; |
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520 uhp->uh_alt_next.ptr = old_curhead; |
753 | 521 if (old_curhead != NULL) |
522 { | |
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523 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
524 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
|
525 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp; |
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
526 old_curhead->uh_alt_prev.ptr = uhp; |
753 | 527 if (curbuf->b_u_oldhead == old_curhead) |
528 curbuf->b_u_oldhead = uhp; | |
529 } | |
1056 | 530 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
531 uhp->uh_alt_prev.ptr = NULL; |
758 | 532 if (curbuf->b_u_newhead != NULL) |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
533 curbuf->b_u_newhead->uh_prev.ptr = uhp; |
758 | 534 |
777 | 535 uhp->uh_seq = ++curbuf->b_u_seq_last; |
536 curbuf->b_u_seq_cur = uhp->uh_seq; | |
9674
adc7212951ee
commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
537 uhp->uh_time = vim_time(); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
538 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
|
539 curbuf->b_u_time_cur = uhp->uh_time + 1; |
758 | 540 |
753 | 541 uhp->uh_walk = 0; |
7 | 542 uhp->uh_entry = NULL; |
543 uhp->uh_getbot_entry = NULL; | |
544 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */ | |
545 #ifdef FEAT_VIRTUALEDIT | |
546 if (virtual_active() && curwin->w_cursor.coladd > 0) | |
547 uhp->uh_cursor_vcol = getviscol(); | |
548 else | |
549 uhp->uh_cursor_vcol = -1; | |
550 #endif | |
551 | |
552 /* save changed and buffer empty flag for undo */ | |
553 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) + | |
554 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
555 | |
692 | 556 /* save named marks and Visual marks for undo */ |
7 | 557 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); |
692 | 558 uhp->uh_visual = curbuf->b_visual; |
559 | |
7 | 560 curbuf->b_u_newhead = uhp; |
561 if (curbuf->b_u_oldhead == NULL) | |
562 curbuf->b_u_oldhead = uhp; | |
563 ++curbuf->b_u_numhead; | |
564 } | |
565 else | |
566 { | |
5446 | 567 if (get_undolevel() < 0) /* no undo at all */ |
7 | 568 return OK; |
569 | |
570 /* | |
571 * When saving a single line, and it has been saved just before, it | |
572 * doesn't make sense saving it again. Saves a lot of memory when | |
573 * making lots of changes inside the same line. | |
574 * This is only possible if the previous change didn't increase or | |
575 * decrease the number of lines. | |
576 * Check the ten last changes. More doesn't make sense and takes too | |
577 * long. | |
578 */ | |
579 if (size == 1) | |
580 { | |
581 uep = u_get_headentry(); | |
582 prev_uep = NULL; | |
583 for (i = 0; i < 10; ++i) | |
584 { | |
585 if (uep == NULL) | |
586 break; | |
587 | |
588 /* If lines have been inserted/deleted we give up. | |
589 * Also when the line was included in a multi-line save. */ | |
590 if ((curbuf->b_u_newhead->uh_getbot_entry != uep | |
591 ? (uep->ue_top + uep->ue_size + 1 | |
592 != (uep->ue_bot == 0 | |
593 ? curbuf->b_ml.ml_line_count + 1 | |
594 : uep->ue_bot)) | |
595 : uep->ue_lcount != curbuf->b_ml.ml_line_count) | |
596 || (uep->ue_size > 1 | |
597 && top >= uep->ue_top | |
598 && top + 2 <= uep->ue_top + uep->ue_size + 1)) | |
599 break; | |
600 | |
601 /* If it's the same line we can skip saving it again. */ | |
602 if (uep->ue_size == 1 && uep->ue_top == top) | |
603 { | |
604 if (i > 0) | |
605 { | |
606 /* It's not the last entry: get ue_bot for the last | |
607 * entry now. Following deleted/inserted lines go to | |
608 * the re-used entry. */ | |
609 u_getbot(); | |
610 curbuf->b_u_synced = FALSE; | |
611 | |
612 /* Move the found entry to become the last entry. The | |
613 * order of undo/redo doesn't matter for the entries | |
614 * we move it over, since they don't change the line | |
615 * count and don't include this line. It does matter | |
616 * for the found entry if the line count is changed by | |
617 * the executed command. */ | |
618 prev_uep->ue_next = uep->ue_next; | |
619 uep->ue_next = curbuf->b_u_newhead->uh_entry; | |
620 curbuf->b_u_newhead->uh_entry = uep; | |
621 } | |
622 | |
623 /* The executed command may change the line count. */ | |
624 if (newbot != 0) | |
625 uep->ue_bot = newbot; | |
626 else if (bot > curbuf->b_ml.ml_line_count) | |
627 uep->ue_bot = 0; | |
628 else | |
629 { | |
630 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
631 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
632 } | |
633 return OK; | |
634 } | |
635 prev_uep = uep; | |
636 uep = uep->ue_next; | |
637 } | |
638 } | |
639 | |
640 /* find line number for ue_bot for previous u_save() */ | |
641 u_getbot(); | |
642 } | |
643 | |
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
644 #if !defined(UNIX) && !defined(WIN32) |
7 | 645 /* |
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
8128
diff
changeset
|
646 * With Amiga we can't handle big undo's, because |
7 | 647 * then u_alloc_line would have to allocate a block larger than 32K |
648 */ | |
649 if (size >= 8000) | |
650 goto nomem; | |
651 #endif | |
652 | |
653 /* | |
654 * add lines in front of entry list | |
655 */ | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
656 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
7 | 657 if (uep == NULL) |
658 goto nomem; | |
2215
cccb71c2c5c1
Fix uninit memory read in undo code. Fix uint32_t in proto file.
Bram Moolenaar <bram@vim.org>
parents:
2214
diff
changeset
|
659 vim_memset(uep, 0, sizeof(u_entry_T)); |
1415 | 660 #ifdef U_DEBUG |
661 uep->ue_magic = UE_MAGIC; | |
662 #endif | |
7 | 663 |
664 uep->ue_size = size; | |
665 uep->ue_top = top; | |
666 if (newbot != 0) | |
667 uep->ue_bot = newbot; | |
668 /* | |
669 * Use 0 for ue_bot if bot is below last line. | |
670 * Otherwise we have to compute ue_bot later. | |
671 */ | |
672 else if (bot > curbuf->b_ml.ml_line_count) | |
673 uep->ue_bot = 0; | |
674 else | |
675 { | |
676 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
677 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
678 } | |
679 | |
168 | 680 if (size > 0) |
7 | 681 { |
168 | 682 if ((uep->ue_array = (char_u **)U_ALLOC_LINE( |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
683 sizeof(char_u *) * size)) == NULL) |
7 | 684 { |
685 u_freeentry(uep, 0L); | |
686 goto nomem; | |
687 } | |
688 for (i = 0, lnum = top + 1; i < size; ++i) | |
689 { | |
481 | 690 fast_breakcheck(); |
691 if (got_int) | |
692 { | |
693 u_freeentry(uep, i); | |
694 return FAIL; | |
695 } | |
7 | 696 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL) |
697 { | |
698 u_freeentry(uep, i); | |
699 goto nomem; | |
700 } | |
701 } | |
702 } | |
359 | 703 else |
704 uep->ue_array = NULL; | |
7 | 705 uep->ue_next = curbuf->b_u_newhead->uh_entry; |
706 curbuf->b_u_newhead->uh_entry = uep; | |
707 curbuf->b_u_synced = FALSE; | |
708 undo_undoes = FALSE; | |
709 | |
1415 | 710 #ifdef U_DEBUG |
711 u_check(FALSE); | |
712 #endif | |
7 | 713 return OK; |
714 | |
715 nomem: | |
716 msg_silent = 0; /* must display the prompt */ | |
717 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE) | |
718 == 'y') | |
719 { | |
720 undo_off = TRUE; /* will be reset when character typed */ | |
721 return OK; | |
722 } | |
723 do_outofmem_msg((long_u)0); | |
724 return FAIL; | |
725 } | |
726 | |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
727 #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
|
728 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
729 # 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
|
730 # 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
|
731 # 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
|
732 # 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
|
733 # 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
|
734 # 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
|
735 # 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
|
736 # 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
|
737 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
738 /* extra fields for header */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
739 # 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
|
740 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
741 /* extra fields for uhp */ |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
742 # 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
|
743 |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
744 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
|
745 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
746 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
747 * 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
|
748 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
749 void |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
750 u_compute_hash(char_u *hash) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
751 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
752 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
|
753 linenr_T lnum; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
754 char_u *p; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
755 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
756 sha256_start(&ctx); |
3194 | 757 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
|
758 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
759 p = ml_get(lnum); |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
760 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
|
761 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
762 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
|
763 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
764 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
765 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
766 * 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
|
767 * 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
|
768 * 'undodir'. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
769 * 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
|
770 * 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
|
771 */ |
2236
dc2e5ec0500d
Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents:
2235
diff
changeset
|
772 char_u * |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
773 u_get_undo_file_name(char_u *buf_ffname, int reading) |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
774 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
775 char_u *dirp; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
776 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
|
777 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
|
778 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
|
779 int dir_len; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
780 char_u *p; |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
8568
diff
changeset
|
781 stat_T st; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
782 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
|
783 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
784 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
|
785 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
786 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
787 if (ffname == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
788 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
789 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
790 #ifdef HAVE_READLINK |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
791 /* 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
|
792 * 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
|
793 if (resolve_symlink(ffname, fname_buf) == OK) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
794 ffname = fname_buf; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
795 #endif |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
796 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
797 /* 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:
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diff
changeset
|
798 * When not reading use the first directory that exists or ".". */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
799 dirp = p_udir; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
800 while (*dirp != NUL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
801 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
802 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:
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diff
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|
803 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:
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diff
changeset
|
804 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
805 /* Use same directory as the ffname, |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
806 * "dir/name" -> "dir/.name.un~" */ |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
807 undo_file_name = vim_strnsave(ffname, (int)(STRLEN(ffname) + 5)); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
808 if (undo_file_name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
809 break; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
810 p = gettail(undo_file_name); |
5704 | 811 #ifdef VMS |
812 /* VMS can not handle more than one dot in the filenames | |
813 * use "dir/name" -> "dir/_un_name" - add _un_ | |
814 * at the beginning to keep the extension */ | |
815 mch_memmove(p + 4, p, STRLEN(p) + 1); | |
816 mch_memmove(p, "_un_", 4); | |
817 | |
818 #else | |
819 /* Use same directory as the ffname, | |
820 * "dir/name" -> "dir/.name.un~" */ | |
2214
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Included patch for persistent undo. Lots of changes and added test.
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changeset
|
821 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:
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diff
changeset
|
822 *p = '.'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
823 STRCAT(p, ".un~"); |
5704 | 824 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
825 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
826 else |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
827 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
828 dir_name[dir_len] = NUL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
829 if (mch_isdir(dir_name)) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
830 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
831 if (munged_name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
832 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
833 munged_name = vim_strsave(ffname); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
834 if (munged_name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
835 return NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
836 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:
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changeset
|
837 if (vim_ispathsep(*p)) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
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changeset
|
838 *p = '%'; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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changeset
|
839 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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changeset
|
840 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:
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changeset
|
841 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
842 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
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changeset
|
843 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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changeset
|
844 /* When reading check if the file exists. */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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changeset
|
845 if (undo_file_name != NULL && (!reading |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
846 || mch_stat((char *)undo_file_name, &st) >= 0)) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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changeset
|
847 break; |
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Included patch for persistent undo. Lots of changes and added test.
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|
848 vim_free(undo_file_name); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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changeset
|
849 undo_file_name = NULL; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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|
850 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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|
851 |
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Included patch for persistent undo. Lots of changes and added test.
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|
852 vim_free(munged_name); |
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Included patch for persistent undo. Lots of changes and added test.
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changeset
|
853 return undo_file_name; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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changeset
|
854 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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|
855 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
856 static void |
7835
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commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
857 corruption_error(char *mesg, char_u *file_name) |
2231
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Various improvements to undo file code to make it more robust.
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|
858 { |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
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diff
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|
859 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name); |
2231
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|
860 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
861 |
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Various improvements to undo file code to make it more robust.
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|
862 static void |
7835
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
863 u_free_uhp(u_header_T *uhp) |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
864 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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|
865 u_entry_T *nuep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
866 u_entry_T *uep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
867 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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changeset
|
868 uep = uhp->uh_entry; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
869 while (uep != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
870 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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changeset
|
871 nuep = uep->ue_next; |
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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|
872 u_freeentry(uep, uep->ue_size); |
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
873 uep = nuep; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
874 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
875 vim_free(uhp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
876 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
877 |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
878 /* |
6122 | 879 * Write a sequence of bytes to the undo file. |
880 * Buffers and encrypts as needed. | |
881 * Returns OK or FAIL. | |
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
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|
882 */ |
6122 | 883 static int |
7835
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commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
884 undo_write(bufinfo_T *bi, char_u *ptr, size_t len) |
6122 | 885 { |
886 #ifdef FEAT_CRYPT | |
887 if (bi->bi_buffer != NULL) | |
888 { | |
889 size_t len_todo = len; | |
890 char_u *p = ptr; | |
891 | |
892 while (bi->bi_used + len_todo >= CRYPT_BUF_SIZE) | |
893 { | |
894 size_t n = CRYPT_BUF_SIZE - bi->bi_used; | |
895 | |
896 mch_memmove(bi->bi_buffer + bi->bi_used, p, n); | |
897 len_todo -= n; | |
898 p += n; | |
899 bi->bi_used = CRYPT_BUF_SIZE; | |
900 if (undo_flush(bi) == FAIL) | |
901 return FAIL; | |
902 } | |
903 if (len_todo > 0) | |
904 { | |
905 mch_memmove(bi->bi_buffer + bi->bi_used, p, len_todo); | |
906 bi->bi_used += len_todo; | |
907 } | |
908 return OK; | |
909 } | |
910 #endif | |
911 if (fwrite(ptr, len, (size_t)1, bi->bi_fp) != 1) | |
912 return FAIL; | |
913 return OK; | |
914 } | |
915 | |
916 #ifdef FEAT_CRYPT | |
917 static int | |
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parents:
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diff
changeset
|
918 undo_flush(bufinfo_T *bi) |
6122 | 919 { |
6128 | 920 if (bi->bi_buffer != NULL && bi->bi_used > 0) |
6122 | 921 { |
922 crypt_encode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_used); | |
923 if (fwrite(bi->bi_buffer, bi->bi_used, (size_t)1, bi->bi_fp) != 1) | |
924 return FAIL; | |
925 bi->bi_used = 0; | |
926 } | |
927 return OK; | |
928 } | |
929 #endif | |
930 | |
931 /* | |
932 * Write "ptr[len]" and crypt the bytes when needed. | |
933 * Returns OK or FAIL. | |
934 */ | |
935 static int | |
7835
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
936 fwrite_crypt(bufinfo_T *bi, char_u *ptr, size_t len) |
2266
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Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
937 { |
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
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changeset
|
938 #ifdef FEAT_CRYPT |
ae2e615a7320
Fix tiny build, move functions to undo.c.
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changeset
|
939 char_u *copy; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
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|
940 char_u small_buf[100]; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
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|
941 size_t i; |
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
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changeset
|
942 |
6122 | 943 if (bi->bi_state != NULL && bi->bi_buffer == NULL) |
2266
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Fix tiny build, move functions to undo.c.
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parents:
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diff
changeset
|
944 { |
6122 | 945 /* crypting every piece of text separately */ |
946 if (len < 100) | |
947 copy = small_buf; /* no malloc()/free() for short strings */ | |
948 else | |
949 { | |
950 copy = lalloc(len, FALSE); | |
951 if (copy == NULL) | |
952 return 0; | |
953 } | |
954 crypt_encode(bi->bi_state, ptr, len, copy); | |
955 i = fwrite(copy, len, (size_t)1, bi->bi_fp); | |
956 if (copy != small_buf) | |
957 vim_free(copy); | |
958 return i == 1 ? OK : FAIL; | |
2266
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Fix tiny build, move functions to undo.c.
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|
959 } |
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
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diff
changeset
|
960 #endif |
6122 | 961 return undo_write(bi, ptr, len); |
962 } | |
963 | |
964 /* | |
965 * Write a number, MSB first, in "len" bytes. | |
966 * Must match with undo_read_?c() functions. | |
967 * Returns OK or FAIL. | |
968 */ | |
969 static int | |
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970 undo_write_bytes(bufinfo_T *bi, long_u nr, int len) |
6122 | 971 { |
972 char_u buf[8]; | |
973 int i; | |
974 int bufi = 0; | |
975 | |
976 for (i = len - 1; i >= 0; --i) | |
6132 | 977 buf[bufi++] = (char_u)(nr >> (i * 8)); |
6122 | 978 return undo_write(bi, buf, (size_t)len); |
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979 } |
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980 |
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981 /* |
6122 | 982 * Write the pointer to an undo header. Instead of writing the pointer itself |
983 * we use the sequence number of the header. This is converted back to | |
984 * pointers when reading. */ | |
985 static void | |
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986 put_header_ptr(bufinfo_T *bi, u_header_T *uhp) |
6122 | 987 { |
988 undo_write_bytes(bi, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4); | |
989 } | |
990 | |
991 static int | |
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992 undo_read_4c(bufinfo_T *bi) |
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993 { |
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994 #ifdef FEAT_CRYPT |
6122 | 995 if (bi->bi_buffer != NULL) |
996 { | |
997 char_u buf[4]; | |
998 int n; | |
999 | |
1000 undo_read(bi, buf, (size_t)4); | |
6216 | 1001 n = ((unsigned)buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3]; |
6122 | 1002 return n; |
1003 } | |
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1004 #endif |
6122 | 1005 return get4c(bi->bi_fp); |
1006 } | |
1007 | |
1008 static int | |
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1009 undo_read_2c(bufinfo_T *bi) |
6122 | 1010 { |
1011 #ifdef FEAT_CRYPT | |
1012 if (bi->bi_buffer != NULL) | |
1013 { | |
1014 char_u buf[2]; | |
1015 int n; | |
1016 | |
1017 undo_read(bi, buf, (size_t)2); | |
1018 n = (buf[0] << 8) + buf[1]; | |
1019 return n; | |
1020 } | |
1021 #endif | |
1022 return get2c(bi->bi_fp); | |
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1023 } |
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1024 |
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1025 static int |
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1026 undo_read_byte(bufinfo_T *bi) |
6122 | 1027 { |
1028 #ifdef FEAT_CRYPT | |
1029 if (bi->bi_buffer != NULL) | |
1030 { | |
1031 char_u buf[1]; | |
1032 | |
1033 undo_read(bi, buf, (size_t)1); | |
1034 return buf[0]; | |
1035 } | |
1036 #endif | |
1037 return getc(bi->bi_fp); | |
1038 } | |
1039 | |
1040 static time_t | |
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1041 undo_read_time(bufinfo_T *bi) |
6122 | 1042 { |
1043 #ifdef FEAT_CRYPT | |
1044 if (bi->bi_buffer != NULL) | |
1045 { | |
1046 char_u buf[8]; | |
1047 time_t n = 0; | |
1048 int i; | |
1049 | |
1050 undo_read(bi, buf, (size_t)8); | |
1051 for (i = 0; i < 8; ++i) | |
1052 n = (n << 8) + buf[i]; | |
1053 return n; | |
1054 } | |
1055 #endif | |
1056 return get8ctime(bi->bi_fp); | |
1057 } | |
1058 | |
1059 /* | |
1060 * Read "buffer[size]" from the undo file. | |
1061 * Return OK or FAIL. | |
1062 */ | |
1063 static int | |
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1064 undo_read(bufinfo_T *bi, char_u *buffer, size_t size) |
6122 | 1065 { |
1066 #ifdef FEAT_CRYPT | |
1067 if (bi->bi_buffer != NULL) | |
1068 { | |
6132 | 1069 int size_todo = (int)size; |
6122 | 1070 char_u *p = buffer; |
1071 | |
1072 while (size_todo > 0) | |
1073 { | |
1074 size_t n; | |
1075 | |
1076 if (bi->bi_used >= bi->bi_avail) | |
1077 { | |
1078 n = fread(bi->bi_buffer, 1, (size_t)CRYPT_BUF_SIZE, bi->bi_fp); | |
1079 if (n <= 0) | |
1080 { | |
1081 /* Error may be checked for only later. Fill with zeros, | |
1082 * so that the reader won't use garbage. */ | |
1083 vim_memset(p, 0, size_todo); | |
1084 return FAIL; | |
1085 } | |
1086 bi->bi_avail = n; | |
1087 bi->bi_used = 0; | |
1088 crypt_decode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_avail); | |
1089 } | |
1090 n = size_todo; | |
1091 if (n > bi->bi_avail - bi->bi_used) | |
1092 n = bi->bi_avail - bi->bi_used; | |
1093 mch_memmove(p, bi->bi_buffer + bi->bi_used, n); | |
1094 bi->bi_used += n; | |
6132 | 1095 size_todo -= (int)n; |
6122 | 1096 p += n; |
1097 } | |
1098 return OK; | |
1099 } | |
1100 #endif | |
1101 if (fread(buffer, (size_t)size, 1, bi->bi_fp) != 1) | |
1102 return FAIL; | |
1103 return OK; | |
1104 } | |
1105 | |
1106 /* | |
1107 * Read a string of length "len" from "bi->bi_fd". | |
1108 * "len" can be zero to allocate an empty line. | |
1109 * Decrypt the bytes if needed. | |
1110 * Append a NUL. | |
1111 * Returns a pointer to allocated memory or NULL for failure. | |
1112 */ | |
1113 static char_u * | |
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1114 read_string_decrypt(bufinfo_T *bi, int len) |
6122 | 1115 { |
1116 char_u *ptr = alloc((unsigned)len + 1); | |
1117 | |
1118 if (ptr != NULL) | |
1119 { | |
1120 if (len > 0 && undo_read(bi, ptr, len) == FAIL) | |
1121 { | |
1122 vim_free(ptr); | |
1123 return NULL; | |
1124 } | |
1125 ptr[len] = NUL; | |
1126 #ifdef FEAT_CRYPT | |
1127 if (bi->bi_state != NULL && bi->bi_buffer == NULL) | |
1128 crypt_decode_inplace(bi->bi_state, ptr, len); | |
1129 #endif | |
1130 } | |
1131 return ptr; | |
1132 } | |
1133 | |
1134 /* | |
1135 * Writes the (not encrypted) header and initializes encryption if needed. | |
1136 */ | |
1137 static int | |
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1138 serialize_header(bufinfo_T *bi, char_u *hash) |
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1139 { |
6122 | 1140 int len; |
1141 buf_T *buf = bi->bi_buf; | |
1142 FILE *fp = bi->bi_fp; | |
1143 char_u time_buf[8]; | |
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1144 |
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1145 /* Start writing, first the magic marker and undo info version. */ |
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1146 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1) |
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1147 return FAIL; |
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1148 |
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1149 /* If the buffer is encrypted then all text bytes following will be |
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1150 * encrypted. Numbers and other info is not crypted. */ |
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1151 #ifdef FEAT_CRYPT |
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1152 if (*buf->b_p_key != NUL) |
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1153 { |
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1154 char_u *header; |
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1155 int header_len; |
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1156 |
6122 | 1157 undo_write_bytes(bi, (long_u)UF_VERSION_CRYPT, 2); |
1158 bi->bi_state = crypt_create_for_writing(crypt_get_method_nr(buf), | |
1159 buf->b_p_key, &header, &header_len); | |
1160 if (bi->bi_state == NULL) | |
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1161 return FAIL; |
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1162 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp); |
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1163 vim_free(header); |
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1164 if (len != 1) |
2267 | 1165 { |
6122 | 1166 crypt_free_state(bi->bi_state); |
1167 bi->bi_state = NULL; | |
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1168 return FAIL; |
2267 | 1169 } |
6122 | 1170 |
1171 if (crypt_whole_undofile(crypt_get_method_nr(buf))) | |
1172 { | |
1173 bi->bi_buffer = alloc(CRYPT_BUF_SIZE); | |
1174 if (bi->bi_buffer == NULL) | |
1175 { | |
1176 crypt_free_state(bi->bi_state); | |
1177 bi->bi_state = NULL; | |
1178 return FAIL; | |
1179 } | |
1180 bi->bi_used = 0; | |
1181 } | |
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1182 } |
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1183 else |
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1184 #endif |
6122 | 1185 undo_write_bytes(bi, (long_u)UF_VERSION, 2); |
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1186 |
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1187 |
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1188 /* Write a hash of the buffer text, so that we can verify it is still the |
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1189 * same when reading the buffer text. */ |
6122 | 1190 if (undo_write(bi, hash, (size_t)UNDO_HASH_SIZE) == FAIL) |
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1191 return FAIL; |
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1192 |
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1193 /* buffer-specific data */ |
6122 | 1194 undo_write_bytes(bi, (long_u)buf->b_ml.ml_line_count, 4); |
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1195 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0; |
6122 | 1196 undo_write_bytes(bi, (long_u)len, 4); |
1197 if (len > 0 && fwrite_crypt(bi, buf->b_u_line_ptr, (size_t)len) == FAIL) | |
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1198 return FAIL; |
6122 | 1199 undo_write_bytes(bi, (long_u)buf->b_u_line_lnum, 4); |
1200 undo_write_bytes(bi, (long_u)buf->b_u_line_colnr, 4); | |
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1201 |
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1202 /* Undo structures header data */ |
6122 | 1203 put_header_ptr(bi, buf->b_u_oldhead); |
1204 put_header_ptr(bi, buf->b_u_newhead); | |
1205 put_header_ptr(bi, buf->b_u_curhead); | |
1206 | |
1207 undo_write_bytes(bi, (long_u)buf->b_u_numhead, 4); | |
1208 undo_write_bytes(bi, (long_u)buf->b_u_seq_last, 4); | |
1209 undo_write_bytes(bi, (long_u)buf->b_u_seq_cur, 4); | |
1210 time_to_bytes(buf->b_u_time_cur, time_buf); | |
1211 undo_write(bi, time_buf, 8); | |
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1213 /* Optional fields. */ |
6122 | 1214 undo_write_bytes(bi, 4, 1); |
1215 undo_write_bytes(bi, UF_LAST_SAVE_NR, 1); | |
1216 undo_write_bytes(bi, (long_u)buf->b_u_save_nr_last, 4); | |
1217 | |
1218 undo_write_bytes(bi, 0, 1); /* end marker */ | |
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1219 |
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1220 return OK; |
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1221 } |
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1222 |
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1223 static int |
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1224 serialize_uhp(bufinfo_T *bi, u_header_T *uhp) |
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1225 { |
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1226 int i; |
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1227 u_entry_T *uep; |
6122 | 1228 char_u time_buf[8]; |
1229 | |
1230 if (undo_write_bytes(bi, (long_u)UF_HEADER_MAGIC, 2) == FAIL) | |
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1231 return FAIL; |
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1232 |
6122 | 1233 put_header_ptr(bi, uhp->uh_next.ptr); |
1234 put_header_ptr(bi, uhp->uh_prev.ptr); | |
1235 put_header_ptr(bi, uhp->uh_alt_next.ptr); | |
1236 put_header_ptr(bi, uhp->uh_alt_prev.ptr); | |
1237 undo_write_bytes(bi, uhp->uh_seq, 4); | |
1238 serialize_pos(bi, uhp->uh_cursor); | |
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1239 #ifdef FEAT_VIRTUALEDIT |
6122 | 1240 undo_write_bytes(bi, (long_u)uhp->uh_cursor_vcol, 4); |
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1241 #else |
6122 | 1242 undo_write_bytes(bi, (long_u)0, 4); |
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1243 #endif |
6122 | 1244 undo_write_bytes(bi, (long_u)uhp->uh_flags, 2); |
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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|
1245 /* Assume NMARKS will stay the same. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
2236
diff
changeset
|
1246 for (i = 0; i < NMARKS; ++i) |
6122 | 1247 serialize_pos(bi, uhp->uh_namedm[i]); |
1248 serialize_visualinfo(bi, &uhp->uh_visual); | |
1249 time_to_bytes(uhp->uh_time, time_buf); | |
1250 undo_write(bi, time_buf, 8); | |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
1251 |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1252 /* Optional fields. */ |
6122 | 1253 undo_write_bytes(bi, 4, 1); |
1254 undo_write_bytes(bi, UHP_SAVE_NR, 1); | |
1255 undo_write_bytes(bi, (long_u)uhp->uh_save_nr, 4); | |
1256 | |
1257 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>
parents:
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diff
changeset
|
1258 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1259 /* Write all the entries. */ |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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2236
diff
changeset
|
1260 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
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|
1261 { |
6122 | 1262 undo_write_bytes(bi, (long_u)UF_ENTRY_MAGIC, 2); |
1263 if (serialize_uep(bi, uep) == FAIL) | |
2238
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Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1264 return FAIL; |
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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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|
1265 } |
6122 | 1266 undo_write_bytes(bi, (long_u)UF_ENTRY_END_MAGIC, 2); |
2238
3d0a7beb0d75
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|
1267 return OK; |
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Made reading/writing undo info a bit more robust.
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|
1268 } |
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Made reading/writing undo info a bit more robust.
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parents:
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|
1269 |
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1270 static u_header_T * |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
1271 unserialize_uhp(bufinfo_T *bi, char_u *file_name) |
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1272 { |
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Made reading/writing undo info a bit more robust.
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|
1273 u_header_T *uhp; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1274 int i; |
3d0a7beb0d75
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2236
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|
1275 u_entry_T *uep, *last_uep; |
3d0a7beb0d75
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parents:
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|
1276 int c; |
3d0a7beb0d75
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parents:
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|
1277 int error; |
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|
1278 |
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Made reading/writing undo info a bit more robust.
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|
1279 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
1280 if (uhp == NULL) |
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|
1281 return NULL; |
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Bram Moolenaar <bram@vim.org>
parents:
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|
1282 vim_memset(uhp, 0, sizeof(u_header_T)); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1283 #ifdef U_DEBUG |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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parents:
2236
diff
changeset
|
1284 uhp->uh_magic = UH_MAGIC; |
3d0a7beb0d75
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parents:
2236
diff
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|
1285 #endif |
6122 | 1286 uhp->uh_next.seq = undo_read_4c(bi); |
1287 uhp->uh_prev.seq = undo_read_4c(bi); | |
1288 uhp->uh_alt_next.seq = undo_read_4c(bi); | |
1289 uhp->uh_alt_prev.seq = undo_read_4c(bi); | |
1290 uhp->uh_seq = undo_read_4c(bi); | |
2238
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|
1291 if (uhp->uh_seq <= 0) |
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Made reading/writing undo info a bit more robust.
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parents:
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diff
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|
1292 { |
3d0a7beb0d75
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parents:
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|
1293 corruption_error("uh_seq", file_name); |
3d0a7beb0d75
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|
1294 vim_free(uhp); |
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|
1295 return NULL; |
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Bram Moolenaar <bram@vim.org>
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|
1296 } |
6122 | 1297 unserialize_pos(bi, &uhp->uh_cursor); |
2238
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1298 #ifdef FEAT_VIRTUALEDIT |
6122 | 1299 uhp->uh_cursor_vcol = undo_read_4c(bi); |
2238
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|
1300 #else |
6122 | 1301 (void)undo_read_4c(bi); |
2238
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|
1302 #endif |
6122 | 1303 uhp->uh_flags = undo_read_2c(bi); |
2238
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|
1304 for (i = 0; i < NMARKS; ++i) |
6122 | 1305 unserialize_pos(bi, &uhp->uh_namedm[i]); |
1306 unserialize_visualinfo(bi, &uhp->uh_visual); | |
1307 uhp->uh_time = undo_read_time(bi); | |
2238
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Bram Moolenaar <bram@vim.org>
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1308 |
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Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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|
1309 /* Optional fields. */ |
2342
f6540762173d
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|
1310 for (;;) |
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Fixes and improvements for MS-Windows build.
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|
1311 { |
6122 | 1312 int len = undo_read_byte(bi); |
2342
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|
1313 int what; |
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|
1314 |
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|
1315 if (len == 0) |
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Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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|
1316 break; |
6122 | 1317 what = undo_read_byte(bi); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
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1318 switch (what) |
2280
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|
1319 { |
2342
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|
1320 case UHP_SAVE_NR: |
6122 | 1321 uhp->uh_save_nr = undo_read_4c(bi); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1322 break; |
2342
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|
1323 default: |
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|
1324 /* field not supported, skip */ |
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Fixes and improvements for MS-Windows build.
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|
1325 while (--len >= 0) |
6122 | 1326 (void)undo_read_byte(bi); |
2280
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Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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|
1327 } |
2342
f6540762173d
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|
1328 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1329 |
2238
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|
1330 /* Unserialize the uep list. */ |
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|
1331 last_uep = NULL; |
6122 | 1332 while ((c = undo_read_2c(bi)) == UF_ENTRY_MAGIC) |
2238
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1333 { |
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|
1334 error = FALSE; |
6122 | 1335 uep = unserialize_uep(bi, &error, file_name); |
2238
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|
1336 if (last_uep == NULL) |
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|
1337 uhp->uh_entry = uep; |
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|
1338 else |
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|
1339 last_uep->ue_next = uep; |
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|
1340 last_uep = uep; |
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|
1341 if (uep == NULL || error) |
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|
1342 { |
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|
1343 u_free_uhp(uhp); |
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|
1344 return NULL; |
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|
1345 } |
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|
1346 } |
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1347 if (c != UF_ENTRY_END_MAGIC) |
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1348 { |
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1349 corruption_error("entry end", file_name); |
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|
1350 u_free_uhp(uhp); |
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|
1351 return NULL; |
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|
1352 } |
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1353 |
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|
1354 return uhp; |
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1355 } |
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|
1356 |
2231
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|
1357 /* |
6122 | 1358 * Serialize "uep". |
2231
aa6412cab544
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1359 */ |
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|
1360 static int |
7835
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7805
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|
1361 serialize_uep( |
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7805
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changeset
|
1362 bufinfo_T *bi, |
4d7ce6c03fda
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Christian Brabandt <cb@256bit.org>
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|
1363 u_entry_T *uep) |
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1364 { |
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|
1365 int i; |
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1366 size_t len; |
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|
1367 |
6122 | 1368 undo_write_bytes(bi, (long_u)uep->ue_top, 4); |
1369 undo_write_bytes(bi, (long_u)uep->ue_bot, 4); | |
1370 undo_write_bytes(bi, (long_u)uep->ue_lcount, 4); | |
1371 undo_write_bytes(bi, (long_u)uep->ue_size, 4); | |
2231
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1372 for (i = 0; i < uep->ue_size; ++i) |
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1373 { |
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|
1374 len = STRLEN(uep->ue_array[i]); |
6122 | 1375 if (undo_write_bytes(bi, (long_u)len, 4) == FAIL) |
2231
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|
1376 return FAIL; |
6122 | 1377 if (len > 0 && fwrite_crypt(bi, uep->ue_array[i], len) == FAIL) |
2231
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|
1378 return FAIL; |
aa6412cab544
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|
1379 } |
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|
1380 return OK; |
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|
1381 } |
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1382 |
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|
1383 static u_entry_T * |
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1384 unserialize_uep(bufinfo_T *bi, int *error, char_u *file_name) |
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1385 { |
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1386 int i; |
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1387 u_entry_T *uep; |
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1388 char_u **array; |
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1389 char_u *line; |
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1390 int line_len; |
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1391 |
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1392 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
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1393 if (uep == NULL) |
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1394 return NULL; |
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1395 vim_memset(uep, 0, sizeof(u_entry_T)); |
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1396 #ifdef U_DEBUG |
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1397 uep->ue_magic = UE_MAGIC; |
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1398 #endif |
6122 | 1399 uep->ue_top = undo_read_4c(bi); |
1400 uep->ue_bot = undo_read_4c(bi); | |
1401 uep->ue_lcount = undo_read_4c(bi); | |
1402 uep->ue_size = undo_read_4c(bi); | |
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1403 if (uep->ue_size > 0) |
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1404 { |
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1405 array = (char_u **)U_ALLOC_LINE(sizeof(char_u *) * uep->ue_size); |
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1406 if (array == NULL) |
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1407 { |
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1408 *error = TRUE; |
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1409 return uep; |
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1410 } |
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1411 vim_memset(array, 0, sizeof(char_u *) * uep->ue_size); |
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1412 } |
2232
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1413 else |
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1414 array = NULL; |
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1415 uep->ue_array = array; |
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1416 |
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1417 for (i = 0; i < uep->ue_size; ++i) |
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1418 { |
6122 | 1419 line_len = undo_read_4c(bi); |
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1420 if (line_len >= 0) |
6122 | 1421 line = read_string_decrypt(bi, line_len); |
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1422 else |
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1423 { |
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1424 line = NULL; |
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1425 corruption_error("line length", file_name); |
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1426 } |
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1427 if (line == NULL) |
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1428 { |
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1429 *error = TRUE; |
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1430 return uep; |
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1431 } |
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1432 array[i] = line; |
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1433 } |
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1434 return uep; |
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1435 } |
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1436 |
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1437 /* |
6122 | 1438 * Serialize "pos". |
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1439 */ |
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1440 static void |
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1441 serialize_pos(bufinfo_T *bi, pos_T pos) |
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1442 { |
6122 | 1443 undo_write_bytes(bi, (long_u)pos.lnum, 4); |
1444 undo_write_bytes(bi, (long_u)pos.col, 4); | |
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1445 #ifdef FEAT_VIRTUALEDIT |
6122 | 1446 undo_write_bytes(bi, (long_u)pos.coladd, 4); |
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1447 #else |
6122 | 1448 undo_write_bytes(bi, (long_u)0, 4); |
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1449 #endif |
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1450 } |
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1451 |
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1452 /* |
6122 | 1453 * Unserialize the pos_T at the current position. |
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1454 */ |
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1455 static void |
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1456 unserialize_pos(bufinfo_T *bi, pos_T *pos) |
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1457 { |
6122 | 1458 pos->lnum = undo_read_4c(bi); |
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1459 if (pos->lnum < 0) |
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1460 pos->lnum = 0; |
6122 | 1461 pos->col = undo_read_4c(bi); |
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1462 if (pos->col < 0) |
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1463 pos->col = 0; |
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1464 #ifdef FEAT_VIRTUALEDIT |
6122 | 1465 pos->coladd = undo_read_4c(bi); |
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1466 if (pos->coladd < 0) |
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1467 pos->coladd = 0; |
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1468 #else |
6122 | 1469 (void)undo_read_4c(bi); |
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1470 #endif |
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1471 } |
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1472 |
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1473 /* |
6122 | 1474 * Serialize "info". |
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1475 */ |
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1476 static void |
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1477 serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info) |
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1478 { |
6122 | 1479 serialize_pos(bi, info->vi_start); |
1480 serialize_pos(bi, info->vi_end); | |
1481 undo_write_bytes(bi, (long_u)info->vi_mode, 4); | |
1482 undo_write_bytes(bi, (long_u)info->vi_curswant, 4); | |
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1483 } |
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1484 |
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1485 /* |
6122 | 1486 * Unserialize the visualinfo_T at the current position. |
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1487 */ |
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1488 static void |
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1489 unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info) |
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1490 { |
6122 | 1491 unserialize_pos(bi, &info->vi_start); |
1492 unserialize_pos(bi, &info->vi_end); | |
1493 info->vi_mode = undo_read_4c(bi); | |
1494 info->vi_curswant = undo_read_4c(bi); | |
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1495 } |
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1496 |
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1497 /* |
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1498 * Write the undo tree in an undo file. |
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1499 * When "name" is not NULL, use it as the name of the undo file. |
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1500 * Otherwise use buf->b_ffname to generate the undo file name. |
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1501 * "buf" must never be null, buf->b_ffname is used to obtain the original file |
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1502 * permissions. |
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1503 * "forceit" is TRUE for ":wundo!", FALSE otherwise. |
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1504 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text. |
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1505 */ |
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1506 void |
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1507 u_write_undo( |
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1508 char_u *name, |
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1509 int forceit, |
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1510 buf_T *buf, |
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1511 char_u *hash) |
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1512 { |
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1513 u_header_T *uhp; |
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1514 char_u *file_name; |
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1515 int mark; |
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|
1516 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1517 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
|
1518 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1519 int fd; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1520 FILE *fp = NULL; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1521 int perm; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1522 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
|
1523 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1524 int st_old_valid = FALSE; |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
8568
diff
changeset
|
1525 stat_T st_old; |
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
8568
diff
changeset
|
1526 stat_T st_new; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1527 #endif |
6122 | 1528 bufinfo_T bi; |
1529 | |
6128 | 1530 vim_memset(&bi, 0, sizeof(bi)); |
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 if (name == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1533 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1534 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
|
1535 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
|
1536 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1537 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
|
1538 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1539 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1540 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
|
1541 _("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
|
1542 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1543 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1544 return; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1545 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1546 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1547 else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1548 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
|
1549 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1550 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1551 * 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
|
1552 * 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
|
1553 * 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
|
1554 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1555 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1556 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
|
1557 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1558 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1559 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
|
1560 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1561 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
|
1562 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
|
1563 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1564 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1565 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
|
1566 if (perm < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1567 perm = 0600; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1568 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1569 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1570 |
6771 | 1571 /* strip any s-bit and executable bit */ |
1572 perm = perm & 0666; | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1573 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1574 /* If the undo file already exists, verify that it actually is an undo |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1575 * 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
|
1576 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
|
1577 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1578 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
|
1579 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1580 /* 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
|
1581 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
|
1582 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1583 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1584 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
|
1585 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1586 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
|
1587 verbose_enter(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1588 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
|
1589 _("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
|
1590 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
|
1591 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
|
1592 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1593 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1594 goto theend; |
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 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1597 { |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1598 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
|
1599 int len; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1600 |
2664 | 1601 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
|
1602 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1603 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
|
1604 || 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
|
1605 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1606 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
|
1607 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1608 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
|
1609 verbose_enter(); |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1610 smsg((char_u *) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1611 _("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
|
1612 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
|
1613 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
|
1614 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1615 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1616 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1617 } |
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 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
|
1621 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1622 |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1623 /* 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
|
1624 * existing undo file. */ |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1625 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
|
1626 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1627 if (p_verbose > 0) |
2262 | 1628 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
|
1629 goto theend; |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1630 } |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1631 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1632 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
|
1633 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
|
1634 if (fd < 0) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1635 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1636 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
|
1637 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1638 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1639 (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
|
1640 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
|
1641 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1642 verbose_enter(); |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1643 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
|
1644 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1645 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1646 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1647 #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
|
1648 /* 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
|
1649 u_check(FALSE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1650 #endif |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1651 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1652 #ifdef UNIX |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1653 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1654 * 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
|
1655 * 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
|
1656 * 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
|
1657 */ |
2367
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1658 if (st_old_valid |
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1659 && 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
|
1660 && 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
|
1661 # 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
|
1662 && 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
|
1663 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1664 ) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1665 mch_setperm(file_name, (perm & 0707) | ((perm & 07) << 3)); |
5788 | 1666 # 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
|
1667 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
|
1668 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
|
1669 # endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1670 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1671 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1672 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
|
1673 if (fp == NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1674 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1675 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
|
1676 close(fd); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1677 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
|
1678 goto theend; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1679 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1680 |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1681 /* Undo must be synced. */ |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1682 u_sync(TRUE); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1683 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1684 /* |
6122 | 1685 * 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
|
1686 */ |
6122 | 1687 bi.bi_buf = buf; |
1688 bi.bi_fp = fp; | |
1689 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
|
1690 goto write_error; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1691 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1692 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1693 * 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
|
1694 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1695 mark = ++lastmark; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1696 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
|
1697 while (uhp != NULL) |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1698 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1699 /* 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
|
1700 if (uhp->uh_walk != mark) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1701 { |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1702 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
|
1703 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1704 ++headers_written; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1705 #endif |
6122 | 1706 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
|
1707 goto write_error; |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1708 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1709 |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1710 /* 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
|
1711 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
|
1712 uhp = uhp->uh_prev.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1713 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
|
1714 && 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
|
1715 uhp = uhp->uh_alt_next.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1716 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
|
1717 && uhp->uh_next.ptr->uh_walk != mark) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1718 uhp = uhp->uh_next.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1719 else if (uhp->uh_alt_prev.ptr != NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1720 uhp = uhp->uh_alt_prev.ptr; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1721 else |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1722 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
|
1723 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1724 |
6122 | 1725 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
|
1726 write_ok = TRUE; |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1727 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1728 if (headers_written != buf->b_u_numhead) |
4827
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1729 { |
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1730 EMSGN("Written %ld headers, ...", headers_written); |
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1731 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
|
1732 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1733 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1734 |
6122 | 1735 #ifdef FEAT_CRYPT |
1736 if (bi.bi_state != NULL && undo_flush(&bi) == FAIL) | |
1737 write_ok = FALSE; | |
1738 #endif | |
1739 | |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1740 write_error: |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1741 fclose(fp); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1742 if (!write_ok) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1743 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
|
1744 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1745 #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
|
1746 /* 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
|
1747 * 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
|
1748 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
|
1749 (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
|
1750 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1751 #ifdef HAVE_ACL |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1752 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
|
1753 { |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1754 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
|
1755 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1756 /* 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
|
1757 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
|
1758 mch_set_acl(file_name, acl); |
3545 | 1759 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
|
1760 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1761 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1762 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1763 theend: |
2267 | 1764 #ifdef FEAT_CRYPT |
6122 | 1765 if (bi.bi_state != NULL) |
1766 crypt_free_state(bi.bi_state); | |
1767 vim_free(bi.bi_buffer); | |
2267 | 1768 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1769 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
|
1770 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
|
1771 } |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1772 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1773 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1774 * 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
|
1775 * 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
|
1776 * 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
|
1777 * 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
|
1778 * "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
|
1779 */ |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1780 void |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
1781 u_read_undo(char_u *name, char_u *hash, 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
|
1782 { |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1783 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
|
1784 FILE *fp; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1785 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
|
1786 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
|
1787 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
|
1788 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
|
1789 linenr_T line_count; |
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
1790 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
|
1791 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
|
1792 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
|
1793 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
|
1794 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
|
1795 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
|
1796 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
|
1797 int i, j; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1798 int c; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1799 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
|
1800 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
|
1801 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
|
1802 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
|
1803 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1804 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
|
1805 #endif |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1806 #ifdef UNIX |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
8568
diff
changeset
|
1807 stat_T st_orig; |
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
8568
diff
changeset
|
1808 stat_T st_undo; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1809 #endif |
6122 | 1810 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
|
1811 |
6128 | 1812 vim_memset(&bi, 0, sizeof(bi)); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1813 if (name == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1814 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1815 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
|
1816 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
|
1817 return; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1818 |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1819 #ifdef UNIX |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1820 /* For safety we only read an undo file if the owner is equal to the |
5343 | 1821 * 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
|
1822 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
|
1823 && mch_stat((char *)file_name, &st_undo) >= 0 |
5343 | 1824 && st_orig.st_uid != st_undo.st_uid |
1825 && 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
|
1826 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1827 if (p_verbose > 0) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1828 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1829 verbose_enter(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1830 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
|
1831 file_name); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1832 verbose_leave(); |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1833 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1834 return; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1835 } |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1836 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1837 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1838 else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1839 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
|
1840 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1841 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
|
1842 { |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1843 verbose_enter(); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1844 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
|
1845 verbose_leave(); |
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1846 } |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1847 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1848 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
|
1849 if (fp == NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1850 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1851 if (name != NULL || p_verbose > 0) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1852 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
|
1853 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1854 } |
6122 | 1855 bi.bi_buf = curbuf; |
1856 bi.bi_fp = fp; | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1857 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1858 /* |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1859 * 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
|
1860 */ |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1861 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
|
1862 || 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
|
1863 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1864 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
|
1865 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1866 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1867 version = get2c(fp); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1868 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
|
1869 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1870 #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
|
1871 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
|
1872 { |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1873 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
|
1874 file_name); |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1875 goto error; |
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1876 } |
6122 | 1877 bi.bi_state = crypt_create_from_file(fp, curbuf->b_p_key); |
1878 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
|
1879 { |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1880 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
|
1881 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
|
1882 } |
6122 | 1883 if (crypt_whole_undofile(bi.bi_state->method_nr)) |
1884 { | |
1885 bi.bi_buffer = alloc(CRYPT_BUF_SIZE); | |
1886 if (bi.bi_buffer == NULL) | |
1887 { | |
1888 crypt_free_state(bi.bi_state); | |
1889 bi.bi_state = NULL; | |
1890 goto error; | |
1891 } | |
1892 bi.bi_avail = 0; | |
1893 bi.bi_used = 0; | |
1894 } | |
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1895 #else |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1896 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
|
1897 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
|
1898 #endif |
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1899 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1900 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
|
1901 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1902 EMSG2(_("E824: Incompatible undo file: %s"), file_name); |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1903 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1904 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1905 |
6122 | 1906 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
|
1907 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1908 corruption_error("hash", file_name); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1909 goto error; |
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1910 } |
6122 | 1911 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
|
1912 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
|
1913 || 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
|
1914 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1915 if (p_verbose > 0 || name != NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1916 { |
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1917 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
|
1918 verbose_enter(); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1919 give_warning((char_u *) |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1920 _("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
|
1921 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
|
1922 verbose_leave(); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1923 } |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1924 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1925 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1926 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1927 /* Read undo data for "U" command. */ |
6122 | 1928 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
|
1929 if (str_len < 0) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1930 goto error; |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1931 if (str_len > 0) |
6122 | 1932 line_ptr = read_string_decrypt(&bi, str_len); |
1933 line_lnum = (linenr_T)undo_read_4c(&bi); | |
1934 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
|
1935 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
|
1936 { |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1937 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
|
1938 goto error; |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1939 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1940 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1941 /* Begin general undo data */ |
6122 | 1942 old_header_seq = undo_read_4c(&bi); |
1943 new_header_seq = undo_read_4c(&bi); | |
1944 cur_header_seq = undo_read_4c(&bi); | |
1945 num_head = undo_read_4c(&bi); | |
1946 seq_last = undo_read_4c(&bi); | |
1947 seq_cur = undo_read_4c(&bi); | |
1948 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
|
1949 |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1950 /* Optional header fields. */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1951 for (;;) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1952 { |
6122 | 1953 int len = undo_read_byte(&bi); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1954 int what; |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1955 |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1956 if (len == 0 || len == EOF) |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1957 break; |
6122 | 1958 what = undo_read_byte(&bi); |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1959 switch (what) |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1960 { |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1961 case UF_LAST_SAVE_NR: |
6122 | 1962 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
|
1963 break; |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1964 default: |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1965 /* field not supported, skip */ |
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1966 while (--len >= 0) |
6122 | 1967 (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
|
1968 } |
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1969 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1970 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1971 /* 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
|
1972 * 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
|
1973 * 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
|
1974 * 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
|
1975 if (num_head > 0) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1976 { |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1977 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
|
1978 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
|
1979 if (uhp_table == NULL) |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1980 goto error; |
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1981 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1982 |
6122 | 1983 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
|
1984 { |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1985 if (num_read_uhps >= num_head) |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1986 { |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1987 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
|
1988 goto error; |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1989 } |
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1990 |
6122 | 1991 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
|
1992 if (uhp == NULL) |
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1993 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1994 uhp_table[num_read_uhps++] = uhp; |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1995 } |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1996 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1997 if (num_read_uhps != num_head) |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1998 { |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1999 corruption_error("num_head", file_name); |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2000 goto error; |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2001 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2002 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
|
2003 { |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2004 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
|
2005 goto error; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2006 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2007 |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2008 #ifdef U_DEBUG |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2009 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
|
2010 (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
|
2011 # 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
|
2012 #else |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2013 # 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
|
2014 #endif |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2015 |
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2016 /* 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
|
2017 * 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
|
2018 * 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
|
2019 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
|
2020 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2021 uhp = uhp_table[i]; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2022 if (uhp == NULL) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2023 continue; |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2024 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2025 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
|
2026 && 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
|
2027 { |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2028 corruption_error("duplicate uh_seq", file_name); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2029 goto error; |
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2030 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2031 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2032 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
|
2033 && 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
|
2034 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2035 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
|
2036 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2037 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2038 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2039 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2040 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
|
2041 && 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
|
2042 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2043 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
|
2044 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2045 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2046 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2047 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2048 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
|
2049 && 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
|
2050 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2051 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
|
2052 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2053 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2054 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2055 for (j = 0; j < num_head; j++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2056 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
|
2057 && 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
|
2058 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2059 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
|
2060 SET_FLAG(j); |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2061 break; |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2062 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2063 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
|
2064 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2065 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
|
2066 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2067 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2068 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
|
2069 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2070 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
|
2071 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2072 } |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2073 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
|
2074 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2075 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
|
2076 SET_FLAG(i); |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2077 } |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2078 } |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2079 |
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2080 /* 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
|
2081 * 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
|
2082 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
|
2083 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
|
2084 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
|
2085 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
|
2086 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
|
2087 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
|
2088 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
|
2089 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
|
2090 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
|
2091 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
|
2092 curbuf->b_u_time_cur = seq_time; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2093 curbuf->b_u_save_nr_last = last_save_nr; |
2627 | 2094 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
|
2095 |
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2096 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
|
2097 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
|
2098 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2099 #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
|
2100 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
|
2101 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
|
2102 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
|
2103 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
|
2104 u_check(TRUE); |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2105 #endif |
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2106 |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2107 if (name != NULL) |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2108 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
|
2109 goto theend; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2110 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2111 error: |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2112 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
|
2113 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
|
2114 { |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2115 for (i = 0; i < num_read_uhps; i++) |
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2116 if (uhp_table[i] != NULL) |
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2117 u_free_uhp(uhp_table[i]); |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2118 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
|
2119 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2120 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2121 theend: |
2267 | 2122 #ifdef FEAT_CRYPT |
6122 | 2123 if (bi.bi_state != NULL) |
2124 crypt_free_state(bi.bi_state); | |
2125 vim_free(bi.bi_buffer); | |
2267 | 2126 #endif |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2127 if (fp != NULL) |
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2128 fclose(fp); |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2129 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
|
2130 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
|
2131 return; |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2132 } |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2133 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2134 #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
|
2135 |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2136 |
7 | 2137 /* |
2138 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible). | |
2139 * If 'cpoptions' does not contain 'u': Always undo. | |
2140 */ | |
2141 void | |
7835
4d7ce6c03fda
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parents:
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diff
changeset
|
2142 u_undo(int count) |
7 | 2143 { |
2144 /* | |
2145 * If we get an undo command while executing a macro, we behave like the | |
2146 * original vi. If this happens twice in one macro the result will not | |
2147 * be compatible. | |
2148 */ | |
2149 if (curbuf->b_u_synced == FALSE) | |
2150 { | |
825 | 2151 u_sync(TRUE); |
7 | 2152 count = 1; |
2153 } | |
2154 | |
2155 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
2156 undo_undoes = TRUE; | |
2157 else | |
2158 undo_undoes = !undo_undoes; | |
2159 u_doit(count); | |
2160 } | |
2161 | |
2162 /* | |
2163 * If 'cpoptions' contains 'u': Repeat the previous undo or redo. | |
2164 * If 'cpoptions' does not contain 'u': Always redo. | |
2165 */ | |
2166 void | |
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parents:
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diff
changeset
|
2167 u_redo(int count) |
7 | 2168 { |
2169 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
2170 undo_undoes = FALSE; | |
2171 u_doit(count); | |
2172 } | |
2173 | |
2174 /* | |
2175 * Undo or redo, depending on 'undo_undoes', 'count' times. | |
2176 */ | |
2177 static void | |
7835
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parents:
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diff
changeset
|
2178 u_doit(int startcount) |
7 | 2179 { |
777 | 2180 int count = startcount; |
2181 | |
632 | 2182 if (!undo_allowed()) |
7 | 2183 return; |
2184 | |
2185 u_newcount = 0; | |
2186 u_oldcount = 0; | |
179 | 2187 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
2188 u_oldcount = -1; | |
7 | 2189 while (count--) |
2190 { | |
2189 | 2191 /* Do the change warning now, so that it triggers FileChangedRO when |
2192 * needed. This may cause the file to be reloaded, that must happen | |
2193 * before we do anything, because it may change curbuf->b_u_curhead | |
2194 * and more. */ | |
2195 change_warning(0); | |
2196 | |
7 | 2197 if (undo_undoes) |
2198 { | |
2199 if (curbuf->b_u_curhead == NULL) /* first undo */ | |
2200 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
5446 | 2201 else if (get_undolevel() > 0) /* multi level undo */ |
7 | 2202 /* get next undo */ |
2242
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2203 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr; |
7 | 2204 /* nothing to undo */ |
2205 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL) | |
2206 { | |
2207 /* stick curbuf->b_u_curhead at end */ | |
2208 curbuf->b_u_curhead = curbuf->b_u_oldhead; | |
2209 beep_flush(); | |
777 | 2210 if (count == startcount - 1) |
2211 { | |
2212 MSG(_("Already at oldest change")); | |
2213 return; | |
2214 } | |
7 | 2215 break; |
2216 } | |
2217 | |
777 | 2218 u_undoredo(TRUE); |
7 | 2219 } |
2220 else | |
2221 { | |
5446 | 2222 if (curbuf->b_u_curhead == NULL || get_undolevel() <= 0) |
7 | 2223 { |
2224 beep_flush(); /* nothing to redo */ | |
777 | 2225 if (count == startcount - 1) |
2226 { | |
2227 MSG(_("Already at newest change")); | |
2228 return; | |
2229 } | |
7 | 2230 break; |
2231 } | |
2232 | |
777 | 2233 u_undoredo(FALSE); |
753 | 2234 |
2235 /* Advance for next redo. Set "newhead" when at the end of the | |
2236 * redoable changes. */ | |
2242
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2237 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
753 | 2238 curbuf->b_u_newhead = curbuf->b_u_curhead; |
2242
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2239 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr; |
7 | 2240 } |
2241 } | |
798 | 2242 u_undo_end(undo_undoes, FALSE); |
753 | 2243 } |
2244 | |
2245 /* | |
2246 * Undo or redo over the timeline. | |
2247 * When "step" is negative go back in time, otherwise goes forward in time. | |
758 | 2248 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as |
2249 * seconds. | |
2281
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2250 * When "file" is TRUE use "step" as a number of file writes. |
772 | 2251 * When "absolute" is TRUE use "step" as the sequence number to jump to. |
2252 * "sec" must be FALSE then. | |
753 | 2253 */ |
2254 void | |
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|
2255 undo_time( |
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|
2256 long step, |
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|
2257 int sec, |
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|
2258 int file, |
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diff
changeset
|
2259 int absolute) |
753 | 2260 { |
2261 long target; | |
2262 long closest; | |
758 | 2263 long closest_start; |
2264 long closest_seq = 0; | |
2265 long val; | |
753 | 2266 u_header_T *uhp; |
2267 u_header_T *last; | |
2268 int mark; | |
2269 int nomark; | |
2270 int round; | |
758 | 2271 int dosec = sec; |
2281
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2272 int dofile = file; |
758 | 2273 int above = FALSE; |
794 | 2274 int did_undo = TRUE; |
753 | 2275 |
766 | 2276 /* First make sure the current undoable change is synced. */ |
2277 if (curbuf->b_u_synced == FALSE) | |
825 | 2278 u_sync(TRUE); |
766 | 2279 |
753 | 2280 u_newcount = 0; |
2281 u_oldcount = 0; | |
179 | 2282 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
753 | 2283 u_oldcount = -1; |
2284 | |
777 | 2285 /* "target" is the node below which we want to be. |
2286 * Init "closest" to a value we can't reach. */ | |
772 | 2287 if (absolute) |
2288 { | |
8568
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|
2289 if (step == 0) |
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2290 { |
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2291 /* target 0 does not exist, got to 1 and above it. */ |
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2292 target = 1; |
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2293 above = TRUE; |
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2294 } |
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2295 else |
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|
2296 target = step; |
777 | 2297 closest = -1; |
753 | 2298 } |
2299 else | |
2300 { | |
777 | 2301 /* When doing computations with time_t subtract starttime, because |
2302 * time_t converted to a long may result in a wrong number. */ | |
2281
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2303 if (dosec) |
2280
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2304 target = (long)(curbuf->b_u_time_cur - starttime) + step; |
2281
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2305 else if (dofile) |
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2306 { |
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2307 if (step < 0) |
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2308 { |
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2309 /* Going back to a previous write. If there were changes after |
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2310 * the last write, count that as moving one file-write, so |
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2311 * that ":earlier 1f" undoes all changes since the last save. */ |
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2312 uhp = curbuf->b_u_curhead; |
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2313 if (uhp != NULL) |
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2314 uhp = uhp->uh_next.ptr; |
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2315 else |
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2316 uhp = curbuf->b_u_newhead; |
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2317 if (uhp != NULL && uhp->uh_save_nr != 0) |
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|
2318 /* "uh_save_nr" was set in the last block, that means |
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|
2319 * there were no changes since the last write */ |
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|
2320 target = curbuf->b_u_save_nr_cur + step; |
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|
2321 else |
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|
2322 /* count the changes since the last write as one step */ |
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|
2323 target = curbuf->b_u_save_nr_cur + step + 1; |
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|
2324 if (target <= 0) |
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|
2325 /* Go to before first write: before the oldest change. Use |
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|
2326 * the sequence number for that. */ |
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|
2327 dofile = FALSE; |
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|
2328 } |
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|
2329 else |
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|
2330 { |
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|
2331 /* Moving forward to a newer write. */ |
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2332 target = curbuf->b_u_save_nr_cur + step; |
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|
2333 if (target > curbuf->b_u_save_nr_last) |
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|
2334 { |
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|
2335 /* Go to after last write: after the latest change. Use |
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|
2336 * the sequence number for that. */ |
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|
2337 target = curbuf->b_u_seq_last + 1; |
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|
2338 dofile = FALSE; |
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|
2339 } |
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|
2340 } |
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|
2341 } |
777 | 2342 else |
2343 target = curbuf->b_u_seq_cur + step; | |
2344 if (step < 0) | |
758 | 2345 { |
777 | 2346 if (target < 0) |
2347 target = 0; | |
2348 closest = -1; | |
758 | 2349 } |
2350 else | |
2351 { | |
2281
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|
2352 if (dosec) |
9674
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9536
diff
changeset
|
2353 closest = (long)(vim_time() - starttime + 1); |
2281
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2354 else if (dofile) |
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|
2355 closest = curbuf->b_u_save_nr_last + 2; |
777 | 2356 else |
2357 closest = curbuf->b_u_seq_last + 2; | |
2358 if (target >= closest) | |
2359 target = closest - 1; | |
758 | 2360 } |
753 | 2361 } |
758 | 2362 closest_start = closest; |
777 | 2363 closest_seq = curbuf->b_u_seq_cur; |
753 | 2364 |
758 | 2365 /* |
2366 * May do this twice: | |
753 | 2367 * 1. Search for "target", update "closest" to the best match found. |
758 | 2368 * 2. If "target" not found search for "closest". |
2369 * | |
2370 * When using the closest time we use the sequence number in the second | |
2371 * round, because there may be several entries with the same time. | |
2372 */ | |
753 | 2373 for (round = 1; round <= 2; ++round) |
2374 { | |
2375 /* Find the path from the current state to where we want to go. The | |
2376 * desired state can be anywhere in the undo tree, need to go all over | |
2377 * it. We put "nomark" in uh_walk where we have been without success, | |
2378 * "mark" where it could possibly be. */ | |
2379 mark = ++lastmark; | |
2380 nomark = ++lastmark; | |
2381 | |
2382 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */ | |
2383 uhp = curbuf->b_u_newhead; | |
2384 else | |
2385 uhp = curbuf->b_u_curhead; | |
2386 | |
2387 while (uhp != NULL) | |
2388 { | |
2389 uhp->uh_walk = mark; | |
2281
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|
2390 if (dosec) |
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|
2391 val = (long)(uhp->uh_time - starttime); |
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|
2392 else if (dofile) |
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|
2393 val = uhp->uh_save_nr; |
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|
2394 else |
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|
2395 val = uhp->uh_seq; |
753 | 2396 |
2281
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|
2397 if (round == 1 && !(dofile && val == 0)) |
758 | 2398 { |
2399 /* Remember the header that is closest to the target. | |
2400 * It must be at least in the right direction (checked with | |
777 | 2401 * "b_u_seq_cur"). When the timestamp is equal find the |
758 | 2402 * highest/lowest sequence number. */ |
777 | 2403 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur |
2404 : uhp->uh_seq > curbuf->b_u_seq_cur) | |
2405 && ((dosec && val == closest) | |
2406 ? (step < 0 | |
2407 ? uhp->uh_seq < closest_seq | |
2408 : uhp->uh_seq > closest_seq) | |
2409 : closest == closest_start | |
2410 || (val > target | |
2411 ? (closest > target | |
2412 ? val - target <= closest - target | |
2413 : val - target <= target - closest) | |
2414 : (closest > target | |
2415 ? target - val <= closest - target | |
2416 : target - val <= target - closest)))) | |
758 | 2417 { |
2418 closest = val; | |
2419 closest_seq = uhp->uh_seq; | |
2420 } | |
2421 } | |
2422 | |
2423 /* Quit searching when we found a match. But when searching for a | |
2424 * time we need to continue looking for the best uh_seq. */ | |
2425 if (target == val && !dosec) | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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parents:
2280
diff
changeset
|
2426 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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diff
changeset
|
2427 target = uhp->uh_seq; |
758 | 2428 break; |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2429 } |
753 | 2430 |
2431 /* go down in the tree if we haven't been there */ | |
2242
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parents:
2239
diff
changeset
|
2432 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
bc4685345719
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parents:
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diff
changeset
|
2433 && uhp->uh_prev.ptr->uh_walk != mark) |
bc4685345719
Don't use pointers to store numbers, use a union.
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parents:
2239
diff
changeset
|
2434 uhp = uhp->uh_prev.ptr; |
753 | 2435 |
2436 /* go to alternate branch if we haven't been there */ | |
2242
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diff
changeset
|
2437 else if (uhp->uh_alt_next.ptr != NULL |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2438 && 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
|
2439 && 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
|
2440 uhp = uhp->uh_alt_next.ptr; |
753 | 2441 |
2442 /* go up in the tree if we haven't been there and we are at the | |
2443 * start of alternate branches */ | |
2242
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parents:
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diff
changeset
|
2444 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:
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diff
changeset
|
2445 && 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
|
2446 && uhp->uh_next.ptr->uh_walk != mark) |
798 | 2447 { |
2448 /* If still at the start we don't go through this change. */ | |
2449 if (uhp == curbuf->b_u_curhead) | |
2450 uhp->uh_walk = nomark; | |
2242
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2451 uhp = uhp->uh_next.ptr; |
798 | 2452 } |
753 | 2453 |
2454 else | |
2455 { | |
2456 /* need to backtrack; mark this node as useless */ | |
2457 uhp->uh_walk = nomark; | |
2242
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parents:
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diff
changeset
|
2458 if (uhp->uh_alt_prev.ptr != NULL) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2459 uhp = uhp->uh_alt_prev.ptr; |
753 | 2460 else |
2242
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diff
changeset
|
2461 uhp = uhp->uh_next.ptr; |
753 | 2462 } |
2463 } | |
2464 | |
2465 if (uhp != NULL) /* found it */ | |
2466 break; | |
772 | 2467 |
2468 if (absolute) | |
2469 { | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2470 EMSGN(_("E830: Undo number %ld not found"), step); |
772 | 2471 return; |
2472 } | |
2473 | |
758 | 2474 if (closest == closest_start) |
753 | 2475 { |
758 | 2476 if (step < 0) |
2477 MSG(_("Already at oldest change")); | |
2478 else | |
2479 MSG(_("Already at newest change")); | |
753 | 2480 return; |
2481 } | |
2482 | |
758 | 2483 target = closest_seq; |
2484 dosec = FALSE; | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2485 dofile = FALSE; |
758 | 2486 if (step < 0) |
2487 above = TRUE; /* stop above the header */ | |
753 | 2488 } |
2489 | |
2490 /* If we found it: Follow the path to go to where we want to be. */ | |
2491 if (uhp != NULL) | |
2492 { | |
2493 /* | |
2494 * First go up the tree as much as needed. | |
2495 */ | |
2189 | 2496 while (!got_int) |
753 | 2497 { |
2189 | 2498 /* Do the change warning now, for the same reason as above. */ |
2499 change_warning(0); | |
2500 | |
753 | 2501 uhp = curbuf->b_u_curhead; |
2502 if (uhp == NULL) | |
2503 uhp = curbuf->b_u_newhead; | |
2504 else | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2505 uhp = uhp->uh_next.ptr; |
777 | 2506 if (uhp == NULL || uhp->uh_walk != mark |
2507 || (uhp->uh_seq == target && !above)) | |
753 | 2508 break; |
2509 curbuf->b_u_curhead = uhp; | |
777 | 2510 u_undoredo(TRUE); |
753 | 2511 uhp->uh_walk = nomark; /* don't go back down here */ |
2512 } | |
2513 | |
2514 /* | |
758 | 2515 * And now go down the tree (redo), branching off where needed. |
753 | 2516 */ |
2189 | 2517 while (!got_int) |
753 | 2518 { |
2189 | 2519 /* Do the change warning now, for the same reason as above. */ |
2520 change_warning(0); | |
2521 | |
2522 uhp = curbuf->b_u_curhead; | |
2523 if (uhp == NULL) | |
2524 break; | |
2525 | |
1056 | 2526 /* 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
|
2527 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
|
2528 && 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
|
2529 uhp = uhp->uh_alt_prev.ptr; |
1056 | 2530 |
753 | 2531 /* Find the last branch with a mark, that's the one. */ |
2532 last = uhp; | |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2533 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
|
2534 && 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
|
2535 last = last->uh_alt_next.ptr; |
753 | 2536 if (last != uhp) |
2537 { | |
2538 /* Make the used branch the first entry in the list of | |
2539 * 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
|
2540 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
|
2541 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
|
2542 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
|
2543 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
|
2544 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
|
2545 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
|
2546 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
|
2547 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
|
2548 uhp->uh_alt_prev.ptr = last; |
753 | 2549 |
2181 | 2550 if (curbuf->b_u_oldhead == uhp) |
2551 curbuf->b_u_oldhead = last; | |
753 | 2552 uhp = last; |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2553 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
|
2554 uhp->uh_next.ptr->uh_prev.ptr = uhp; |
753 | 2555 } |
758 | 2556 curbuf->b_u_curhead = uhp; |
753 | 2557 |
2558 if (uhp->uh_walk != mark) | |
2559 break; /* must have reached the target */ | |
2560 | |
758 | 2561 /* Stop when going backwards in time and didn't find the exact |
2562 * header we were looking for. */ | |
2563 if (uhp->uh_seq == target && above) | |
798 | 2564 { |
2565 curbuf->b_u_seq_cur = target - 1; | |
758 | 2566 break; |
798 | 2567 } |
758 | 2568 |
777 | 2569 u_undoredo(FALSE); |
753 | 2570 |
2571 /* Advance "curhead" to below the header we last used. If it | |
2572 * becomes NULL then we need to set "newhead" to this leaf. */ | |
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2573 if (uhp->uh_prev.ptr == NULL) |
753 | 2574 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
|
2575 curbuf->b_u_curhead = uhp->uh_prev.ptr; |
794 | 2576 did_undo = FALSE; |
753 | 2577 |
2578 if (uhp->uh_seq == target) /* found it! */ | |
2579 break; | |
2580 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2581 uhp = uhp->uh_prev.ptr; |
753 | 2582 if (uhp == NULL || uhp->uh_walk != mark) |
2583 { | |
777 | 2584 /* Need to redo more but can't find it... */ |
753 | 2585 EMSG2(_(e_intern2), "undo_time()"); |
2586 break; | |
2587 } | |
2588 } | |
2589 } | |
798 | 2590 u_undo_end(did_undo, absolute); |
7 | 2591 } |
2592 | |
2593 /* | |
2594 * u_undoredo: common code for undo and redo | |
2595 * | |
2596 * The lines in the file are replaced by the lines in the entry list at | |
2597 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry | |
2598 * list for the next undo/redo. | |
777 | 2599 * |
2600 * When "undo" is TRUE we go up in the tree, when FALSE we go down. | |
7 | 2601 */ |
2602 static void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2603 u_undoredo(int undo) |
7 | 2604 { |
2605 char_u **newarray = NULL; | |
2606 linenr_T oldsize; | |
2607 linenr_T newsize; | |
2608 linenr_T top, bot; | |
2609 linenr_T lnum; | |
2610 linenr_T newlnum = MAXLNUM; | |
2611 long i; | |
2612 u_entry_T *uep, *nuep; | |
2613 u_entry_T *newlist = NULL; | |
2614 int old_flags; | |
2615 int new_flags; | |
2616 pos_T namedm[NMARKS]; | |
692 | 2617 visualinfo_T visualinfo; |
7 | 2618 int empty_buffer; /* buffer became empty */ |
758 | 2619 u_header_T *curhead = curbuf->b_u_curhead; |
7 | 2620 |
2189 | 2621 #ifdef FEAT_AUTOCMD |
2622 /* Don't want autocommands using the undo structures here, they are | |
2623 * invalid till the end. */ | |
2624 block_autocmds(); | |
2625 #endif | |
2626 | |
1415 | 2627 #ifdef U_DEBUG |
2628 u_check(FALSE); | |
2629 #endif | |
758 | 2630 old_flags = curhead->uh_flags; |
7 | 2631 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) + |
2632 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
2633 setpcmark(); | |
2634 | |
2635 /* | |
2636 * save marks before undo/redo | |
2637 */ | |
2638 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); | |
692 | 2639 visualinfo = curbuf->b_visual; |
7 | 2640 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count; |
2641 curbuf->b_op_start.col = 0; | |
2642 curbuf->b_op_end.lnum = 0; | |
2643 curbuf->b_op_end.col = 0; | |
2644 | |
758 | 2645 for (uep = curhead->uh_entry; uep != NULL; uep = nuep) |
7 | 2646 { |
2647 top = uep->ue_top; | |
2648 bot = uep->ue_bot; | |
2649 if (bot == 0) | |
2650 bot = curbuf->b_ml.ml_line_count + 1; | |
2651 if (top > curbuf->b_ml.ml_line_count || top >= bot | |
2652 || bot > curbuf->b_ml.ml_line_count + 1) | |
2653 { | |
2189 | 2654 #ifdef FEAT_AUTOCMD |
2655 unblock_autocmds(); | |
2656 #endif | |
7 | 2657 EMSG(_("E438: u_undo: line numbers wrong")); |
2658 changed(); /* don't want UNCHANGED now */ | |
2659 return; | |
2660 } | |
2661 | |
2662 oldsize = bot - top - 1; /* number of lines before undo */ | |
2663 newsize = uep->ue_size; /* number of lines after undo */ | |
2664 | |
2665 if (top < newlnum) | |
2666 { | |
2667 /* If the saved cursor is somewhere in this undo block, move it to | |
2668 * the remembered position. Makes "gwap" put the cursor back | |
2669 * where it was. */ | |
758 | 2670 lnum = curhead->uh_cursor.lnum; |
7 | 2671 if (lnum >= top && lnum <= top + newsize + 1) |
2672 { | |
758 | 2673 curwin->w_cursor = curhead->uh_cursor; |
7 | 2674 newlnum = curwin->w_cursor.lnum - 1; |
2675 } | |
2676 else | |
2677 { | |
2678 /* Use the first line that actually changed. Avoids that | |
2679 * undoing auto-formatting puts the cursor in the previous | |
2680 * line. */ | |
2681 for (i = 0; i < newsize && i < oldsize; ++i) | |
2682 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0) | |
2683 break; | |
2684 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL) | |
2685 { | |
2686 newlnum = top; | |
2687 curwin->w_cursor.lnum = newlnum + 1; | |
2688 } | |
2689 else if (i < newsize) | |
2690 { | |
2691 newlnum = top + i; | |
2692 curwin->w_cursor.lnum = newlnum + 1; | |
2693 } | |
2694 } | |
2695 } | |
2696 | |
2697 empty_buffer = FALSE; | |
2698 | |
2699 /* delete the lines between top and bot and save them in newarray */ | |
168 | 2700 if (oldsize > 0) |
7 | 2701 { |
168 | 2702 if ((newarray = (char_u **)U_ALLOC_LINE( |
2230
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2703 sizeof(char_u *) * oldsize)) == NULL) |
7 | 2704 { |
2705 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize)); | |
2706 /* | |
2707 * We have messed up the entry list, repair is impossible. | |
2708 * we have to free the rest of the list. | |
2709 */ | |
2710 while (uep != NULL) | |
2711 { | |
2712 nuep = uep->ue_next; | |
2713 u_freeentry(uep, uep->ue_size); | |
2714 uep = nuep; | |
2715 } | |
2716 break; | |
2717 } | |
2718 /* delete backwards, it goes faster in most cases */ | |
2719 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum) | |
2720 { | |
2721 /* what can we do when we run out of memory? */ | |
2722 if ((newarray[i] = u_save_line(lnum)) == NULL) | |
2723 do_outofmem_msg((long_u)0); | |
2724 /* remember we deleted the last line in the buffer, and a | |
2725 * dummy empty line will be inserted */ | |
2726 if (curbuf->b_ml.ml_line_count == 1) | |
2727 empty_buffer = TRUE; | |
2728 ml_delete(lnum, FALSE); | |
2729 } | |
2730 } | |
414 | 2731 else |
2732 newarray = NULL; | |
7 | 2733 |
2734 /* insert the lines in u_array between top and bot */ | |
2735 if (newsize) | |
2736 { | |
2737 for (lnum = top, i = 0; i < newsize; ++i, ++lnum) | |
2738 { | |
2739 /* | |
2740 * If the file is empty, there is an empty line 1 that we | |
2741 * should get rid of, by replacing it with the new line | |
2742 */ | |
2743 if (empty_buffer && lnum == 0) | |
2744 ml_replace((linenr_T)1, uep->ue_array[i], TRUE); | |
2745 else | |
2746 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE); | |
2230
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2747 vim_free(uep->ue_array[i]); |
7 | 2748 } |
2230
290ee42cae85
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Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2749 vim_free((char_u *)uep->ue_array); |
7 | 2750 } |
2751 | |
2752 /* adjust marks */ | |
2753 if (oldsize != newsize) | |
2754 { | |
2755 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM, | |
2756 (long)newsize - (long)oldsize); | |
2757 if (curbuf->b_op_start.lnum > top + oldsize) | |
2758 curbuf->b_op_start.lnum += newsize - oldsize; | |
2759 if (curbuf->b_op_end.lnum > top + oldsize) | |
2760 curbuf->b_op_end.lnum += newsize - oldsize; | |
2761 } | |
2762 | |
2763 changed_lines(top + 1, 0, bot, newsize - oldsize); | |
2764 | |
2765 /* set '[ and '] mark */ | |
2766 if (top + 1 < curbuf->b_op_start.lnum) | |
2767 curbuf->b_op_start.lnum = top + 1; | |
2768 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) | |
2769 curbuf->b_op_end.lnum = top + 1; | |
2770 else if (top + newsize > curbuf->b_op_end.lnum) | |
2771 curbuf->b_op_end.lnum = top + newsize; | |
2772 | |
2773 u_newcount += newsize; | |
2774 u_oldcount += oldsize; | |
2775 uep->ue_size = oldsize; | |
2776 uep->ue_array = newarray; | |
2777 uep->ue_bot = top + newsize + 1; | |
2778 | |
2779 /* | |
2780 * insert this entry in front of the new entry list | |
2781 */ | |
2782 nuep = uep->ue_next; | |
2783 uep->ue_next = newlist; | |
2784 newlist = uep; | |
2785 } | |
2786 | |
758 | 2787 curhead->uh_entry = newlist; |
2788 curhead->uh_flags = new_flags; | |
7 | 2789 if ((old_flags & UH_EMPTYBUF) && bufempty()) |
2790 curbuf->b_ml.ml_flags |= ML_EMPTY; | |
2791 if (old_flags & UH_CHANGED) | |
2792 changed(); | |
2793 else | |
33 | 2794 #ifdef FEAT_NETBEANS_INTG |
2795 /* per netbeans undo rules, keep it as modified */ | |
2796 if (!isNetbeansModified(curbuf)) | |
2797 #endif | |
7 | 2798 unchanged(curbuf, FALSE); |
2799 | |
2800 /* | |
2801 * restore marks from before undo/redo | |
2802 */ | |
2803 for (i = 0; i < NMARKS; ++i) | |
6616 | 2804 { |
758 | 2805 if (curhead->uh_namedm[i].lnum != 0) |
2806 curbuf->b_namedm[i] = curhead->uh_namedm[i]; | |
6616 | 2807 if (namedm[i].lnum != 0) |
758 | 2808 curhead->uh_namedm[i] = namedm[i]; |
6616 | 2809 else |
2810 curhead->uh_namedm[i].lnum = 0; | |
2811 } | |
758 | 2812 if (curhead->uh_visual.vi_start.lnum != 0) |
692 | 2813 { |
758 | 2814 curbuf->b_visual = curhead->uh_visual; |
2815 curhead->uh_visual = visualinfo; | |
692 | 2816 } |
7 | 2817 |
2818 /* | |
2819 * If the cursor is only off by one line, put it at the same position as | |
2820 * before starting the change (for the "o" command). | |
2821 * Otherwise the cursor should go to the first undone line. | |
2822 */ | |
758 | 2823 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum |
7 | 2824 && curwin->w_cursor.lnum > 1) |
2825 --curwin->w_cursor.lnum; | |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2826 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count) |
7 | 2827 { |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2828 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
|
2829 { |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2830 curwin->w_cursor.col = curhead->uh_cursor.col; |
7 | 2831 #ifdef FEAT_VIRTUALEDIT |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2832 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
|
2833 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
|
2834 else |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2835 curwin->w_cursor.coladd = 0; |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2836 #endif |
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2837 } |
7 | 2838 else |
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2839 beginline(BL_SOL | BL_FIX); |
7 | 2840 } |
2841 else | |
2842 { | |
2843 /* We get here with the current cursor line being past the end (eg | |
2844 * after adding lines at the end of the file, and then undoing it). | |
2845 * check_cursor() will move the cursor to the last line. Move it to | |
2846 * the first column here. */ | |
2847 curwin->w_cursor.col = 0; | |
2848 #ifdef FEAT_VIRTUALEDIT | |
2849 curwin->w_cursor.coladd = 0; | |
2850 #endif | |
2851 } | |
2852 | |
2853 /* Make sure the cursor is on an existing line and column. */ | |
2854 check_cursor(); | |
758 | 2855 |
2856 /* Remember where we are for "g-" and ":earlier 10s". */ | |
2857 curbuf->b_u_seq_cur = curhead->uh_seq; | |
777 | 2858 if (undo) |
2859 /* We are below the previous undo. However, to make ":earlier 1s" | |
2860 * work we compute this as being just above the just undone change. */ | |
2861 --curbuf->b_u_seq_cur; | |
2862 | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2863 /* 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
|
2864 if (curhead->uh_save_nr != 0) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2865 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2866 if (undo) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2867 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
|
2868 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2869 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
|
2870 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2871 |
777 | 2872 /* The timestamp can be the same for multiple changes, just use the one of |
2873 * 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
|
2874 curbuf->b_u_time_cur = curhead->uh_time; |
2189 | 2875 |
2876 #ifdef FEAT_AUTOCMD | |
2877 unblock_autocmds(); | |
2878 #endif | |
1415 | 2879 #ifdef U_DEBUG |
2880 u_check(FALSE); | |
2881 #endif | |
7 | 2882 } |
2883 | |
2884 /* | |
2885 * If we deleted or added lines, report the number of less/more lines. | |
2886 * Otherwise, report the number of changes (this may be incorrect | |
2887 * in some cases, but it's better than nothing). | |
2888 */ | |
2889 static void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2890 u_undo_end( |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2891 int did_undo, /* just did an undo */ |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2892 int absolute) /* used ":undo N" */ |
7 | 2893 { |
944 | 2894 char *msgstr; |
772 | 2895 u_header_T *uhp; |
2896 char_u msgbuf[80]; | |
753 | 2897 |
7 | 2898 #ifdef FEAT_FOLDING |
2899 if ((fdo_flags & FDO_UNDO) && KeyTyped) | |
2900 foldOpenCursor(); | |
2901 #endif | |
753 | 2902 |
2903 if (global_busy /* no messages now, wait until global is finished */ | |
2904 || !messaging()) /* 'lazyredraw' set, don't do messages now */ | |
2905 return; | |
2906 | |
2907 if (curbuf->b_ml.ml_flags & ML_EMPTY) | |
2908 --u_newcount; | |
2909 | |
2910 u_oldcount -= u_newcount; | |
2911 if (u_oldcount == -1) | |
944 | 2912 msgstr = N_("more line"); |
753 | 2913 else if (u_oldcount < 0) |
944 | 2914 msgstr = N_("more lines"); |
753 | 2915 else if (u_oldcount == 1) |
944 | 2916 msgstr = N_("line less"); |
753 | 2917 else if (u_oldcount > 1) |
944 | 2918 msgstr = N_("fewer lines"); |
753 | 2919 else |
2920 { | |
2921 u_oldcount = u_newcount; | |
2922 if (u_newcount == 1) | |
944 | 2923 msgstr = N_("change"); |
753 | 2924 else |
944 | 2925 msgstr = N_("changes"); |
753 | 2926 } |
2927 | |
772 | 2928 if (curbuf->b_u_curhead != NULL) |
794 | 2929 { |
798 | 2930 /* 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
|
2931 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL) |
798 | 2932 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2933 uhp = curbuf->b_u_curhead->uh_next.ptr; |
798 | 2934 did_undo = FALSE; |
2935 } | |
2936 else if (did_undo) | |
794 | 2937 uhp = curbuf->b_u_curhead; |
2938 else | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2939 uhp = curbuf->b_u_curhead->uh_next.ptr; |
794 | 2940 } |
753 | 2941 else |
772 | 2942 uhp = curbuf->b_u_newhead; |
753 | 2943 |
772 | 2944 if (uhp == NULL) |
2945 *msgbuf = NUL; | |
2946 else | |
2947 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time); | |
2948 | |
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2949 #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
|
2950 { |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2951 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
|
2952 |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2953 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
|
2954 { |
2378
85b7dc8da5eb
Add the 'concealcursor' option to decide when the cursor line is to be
Bram Moolenaar <bram@vim.org>
parents:
2367
diff
changeset
|
2955 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
|
2956 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
|
2957 } |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2958 } |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2959 #endif |
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2960 |
794 | 2961 smsg((char_u *)_("%ld %s; %s #%ld %s"), |
777 | 2962 u_oldcount < 0 ? -u_oldcount : u_oldcount, |
944 | 2963 _(msgstr), |
794 | 2964 did_undo ? _("before") : _("after"), |
2965 uhp == NULL ? 0L : uhp->uh_seq, | |
2966 msgbuf); | |
7 | 2967 } |
2968 | |
2969 /* | |
2970 * u_sync: stop adding to the current entry list | |
2971 */ | |
2972 void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2973 u_sync( |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2974 int force) /* Also sync when no_u_sync is set. */ |
7 | 2975 { |
825 | 2976 /* Skip it when already synced or syncing is disabled. */ |
2977 if (curbuf->b_u_synced || (!force && no_u_sync > 0)) | |
2978 return; | |
7 | 2979 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) |
2980 if (im_is_preediting()) | |
2981 return; /* XIM is busy, don't break an undo sequence */ | |
2982 #endif | |
5446 | 2983 if (get_undolevel() < 0) |
7 | 2984 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */ |
2985 else | |
2986 { | |
2987 u_getbot(); /* compute ue_bot of previous u_save */ | |
2988 curbuf->b_u_curhead = NULL; | |
2989 } | |
2990 } | |
2991 | |
2992 /* | |
772 | 2993 * ":undolist": List the leafs of the undo tree |
2994 */ | |
2995 void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2996 ex_undolist(exarg_T *eap UNUSED) |
772 | 2997 { |
2998 garray_T ga; | |
2999 u_header_T *uhp; | |
3000 int mark; | |
3001 int nomark; | |
3002 int changes = 1; | |
3003 int i; | |
3004 | |
3005 /* | |
3006 * 1: walk the tree to find all leafs, put the info in "ga". | |
3007 * 2: sort the lines | |
3008 * 3: display the list | |
3009 */ | |
3010 mark = ++lastmark; | |
3011 nomark = ++lastmark; | |
3012 ga_init2(&ga, (int)sizeof(char *), 20); | |
3013 | |
3014 uhp = curbuf->b_u_oldhead; | |
3015 while (uhp != NULL) | |
3016 { | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3017 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark |
777 | 3018 && uhp->uh_walk != mark) |
772 | 3019 { |
3020 if (ga_grow(&ga, 1) == FAIL) | |
3021 break; | |
3022 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ", | |
3023 uhp->uh_seq, changes); | |
3024 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff), | |
3025 uhp->uh_time); | |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3026 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
|
3027 { |
2627 | 3028 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
|
3029 STRCAT(IObuff, " "); |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3030 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
|
3031 " %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
|
3032 } |
772 | 3033 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff); |
3034 } | |
3035 | |
3036 uhp->uh_walk = mark; | |
3037 | |
3038 /* 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
|
3039 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:
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diff
changeset
|
3040 && uhp->uh_prev.ptr->uh_walk != mark) |
772 | 3041 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3042 uhp = uhp->uh_prev.ptr; |
772 | 3043 ++changes; |
3044 } | |
3045 | |
3046 /* 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
|
3047 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
|
3048 && 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
|
3049 && 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
|
3050 uhp = uhp->uh_alt_next.ptr; |
772 | 3051 |
3052 /* go up in the tree if we haven't been there and we are at the | |
3053 * 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
|
3054 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
|
3055 && 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
|
3056 && uhp->uh_next.ptr->uh_walk != mark) |
772 | 3057 { |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3058 uhp = uhp->uh_next.ptr; |
772 | 3059 --changes; |
3060 } | |
3061 | |
3062 else | |
3063 { | |
3064 /* need to backtrack; mark this node as done */ | |
3065 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
|
3066 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
|
3067 uhp = uhp->uh_alt_prev.ptr; |
772 | 3068 else |
3069 { | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3070 uhp = uhp->uh_next.ptr; |
772 | 3071 --changes; |
3072 } | |
3073 } | |
3074 } | |
3075 | |
3076 if (ga.ga_len == 0) | |
3077 MSG(_("Nothing to undo")); | |
3078 else | |
3079 { | |
3080 sort_strings((char_u **)ga.ga_data, ga.ga_len); | |
3081 | |
3082 msg_start(); | |
2627 | 3083 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
|
3084 hl_attr(HLF_T)); |
772 | 3085 for (i = 0; i < ga.ga_len && !got_int; ++i) |
3086 { | |
3087 msg_putchar('\n'); | |
3088 if (got_int) | |
3089 break; | |
3090 msg_puts(((char_u **)ga.ga_data)[i]); | |
3091 } | |
3092 msg_end(); | |
3093 | |
3094 ga_clear_strings(&ga); | |
3095 } | |
3096 } | |
3097 | |
3098 /* | |
3099 * Put the timestamp of an undo header in "buf[buflen]" in a nice format. | |
3100 */ | |
3101 static void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3102 u_add_time(char_u *buf, size_t buflen, time_t tt) |
772 | 3103 { |
3104 #ifdef HAVE_STRFTIME | |
3105 struct tm *curtime; | |
3106 | |
9674
adc7212951ee
commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
3107 if (vim_time() - tt >= 100) |
772 | 3108 { |
3109 curtime = localtime(&tt); | |
9674
adc7212951ee
commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
3110 if (vim_time() - tt < (60L * 60L * 12L)) |
2627 | 3111 /* within 12 hours */ |
3112 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime); | |
3113 else | |
3751 | 3114 /* longer ago */ |
2689 | 3115 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime); |
772 | 3116 } |
3117 else | |
3118 #endif | |
835 | 3119 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"), |
9674
adc7212951ee
commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
3120 (long)(vim_time() - tt)); |
772 | 3121 } |
3122 | |
3123 /* | |
697 | 3124 * ":undojoin": continue adding to the last entry list |
3125 */ | |
3126 void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3127 ex_undojoin(exarg_T *eap UNUSED) |
697 | 3128 { |
839 | 3129 if (curbuf->b_u_newhead == NULL) |
3130 return; /* nothing changed before */ | |
3131 if (curbuf->b_u_curhead != NULL) | |
3132 { | |
3133 EMSG(_("E790: undojoin is not allowed after undo")); | |
3134 return; | |
3135 } | |
697 | 3136 if (!curbuf->b_u_synced) |
3137 return; /* already unsynced */ | |
5446 | 3138 if (get_undolevel() < 0) |
697 | 3139 return; /* no entries, nothing to do */ |
3140 else | |
3141 { | |
3142 /* Go back to the last entry */ | |
3143 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
3144 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */ | |
3145 } | |
3146 } | |
3147 | |
3148 /* | |
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2378
diff
changeset
|
3149 * Called after writing or reloading the file and setting b_changed to FALSE. |
7 | 3150 * Now an undo means that the buffer is modified. |
3151 */ | |
3152 void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3153 u_unchanged(buf_T *buf) |
7 | 3154 { |
758 | 3155 u_unch_branch(buf->b_u_oldhead); |
3156 buf->b_did_warn = FALSE; | |
3157 } | |
3158 | |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3159 /* |
2482
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3160 * 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
|
3161 * 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
|
3162 */ |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3163 void |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3164 u_find_first_changed(void) |
2482
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3165 { |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3166 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
|
3167 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
|
3168 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
|
3169 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3170 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
|
3171 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
|
3172 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3173 /* 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
|
3174 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
|
3175 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
|
3176 return; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3177 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3178 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
|
3179 && 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
|
3180 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
|
3181 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
|
3182 { |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3183 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
|
3184 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
|
3185 return; |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3186 } |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3187 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
|
3188 { |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3189 /* 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
|
3190 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
|
3191 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
|
3192 } |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3193 } |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3194 |
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3195 /* |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3196 * 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
|
3197 * used for "u". |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3198 */ |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3199 void |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3200 u_update_save_nr(buf_T *buf) |
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3201 { |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3202 u_header_T *uhp; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3203 |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3204 ++buf->b_u_save_nr_last; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3205 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
|
3206 uhp = buf->b_u_curhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3207 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3208 uhp = uhp->uh_next.ptr; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3209 else |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3210 uhp = buf->b_u_newhead; |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3211 if (uhp != NULL) |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3212 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
|
3213 } |
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3214 |
758 | 3215 static void |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3216 u_unch_branch(u_header_T *uhp) |
758 | 3217 { |
753 | 3218 u_header_T *uh; |
7 | 3219 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3220 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr) |
758 | 3221 { |
7 | 3222 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
|
3223 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
|
3224 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */ |
758 | 3225 } |
7 | 3226 } |
3227 | |
3228 /* | |
3229 * Get pointer to last added entry. | |
3230 * If it's not valid, give an error message and return NULL. | |
3231 */ | |
3232 static u_entry_T * | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3233 u_get_headentry(void) |
7 | 3234 { |
3235 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL) | |
3236 { | |
3237 EMSG(_("E439: undo list corrupt")); | |
3238 return NULL; | |
3239 } | |
3240 return curbuf->b_u_newhead->uh_entry; | |
3241 } | |
3242 | |
3243 /* | |
3244 * u_getbot(): compute the line number of the previous u_save | |
3245 * It is called only when b_u_synced is FALSE. | |
3246 */ | |
3247 static void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3248 u_getbot(void) |
7 | 3249 { |
3250 u_entry_T *uep; | |
3251 linenr_T extra; | |
3252 | |
3253 uep = u_get_headentry(); /* check for corrupt undo list */ | |
3254 if (uep == NULL) | |
3255 return; | |
3256 | |
3257 uep = curbuf->b_u_newhead->uh_getbot_entry; | |
3258 if (uep != NULL) | |
3259 { | |
3260 /* | |
3261 * the new ue_bot is computed from the number of lines that has been | |
3262 * inserted (0 - deleted) since calling u_save. This is equal to the | |
3263 * old line count subtracted from the current line count. | |
3264 */ | |
3265 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount; | |
3266 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra; | |
3267 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count) | |
3268 { | |
3269 EMSG(_("E440: undo line missing")); | |
3270 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will | |
3271 * get all the old lines back | |
3272 * without deleting the current | |
3273 * ones */ | |
3274 } | |
3275 | |
3276 curbuf->b_u_newhead->uh_getbot_entry = NULL; | |
3277 } | |
3278 | |
3279 curbuf->b_u_synced = TRUE; | |
3280 } | |
3281 | |
3282 /* | |
1415 | 3283 * Free one header "uhp" and its entry list and adjust the pointers. |
7 | 3284 */ |
3285 static void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3286 u_freeheader( |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3287 buf_T *buf, |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3288 u_header_T *uhp, |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3289 u_header_T **uhpp) /* if not NULL reset when freeing this header */ |
7 | 3290 { |
1415 | 3291 u_header_T *uhap; |
3292 | |
753 | 3293 /* When there is an alternate redo list free that branch completely, |
3294 * 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
|
3295 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
|
3296 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp); |
7 | 3297 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3298 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
|
3299 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
7 | 3300 |
753 | 3301 /* 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
|
3302 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
|
3303 buf->b_u_oldhead = uhp->uh_prev.ptr; |
7 | 3304 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3305 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr; |
7 | 3306 |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3307 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
|
3308 buf->b_u_newhead = uhp->uh_next.ptr; |
7 | 3309 else |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3310 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
|
3311 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
|
3312 uhap->uh_next.ptr = uhp->uh_next.ptr; |
7 | 3313 |
753 | 3314 u_freeentries(buf, uhp, uhpp); |
3315 } | |
3316 | |
3317 /* | |
758 | 3318 * Free an alternate branch and any following alternate branches. |
753 | 3319 */ |
3320 static void | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3321 u_freebranch( |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3322 buf_T *buf, |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3323 u_header_T *uhp, |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3324 u_header_T **uhpp) /* if not NULL reset when freeing this header */ |
753 | 3325 { |
3326 u_header_T *tofree, *next; | |
3327 | |
1440 | 3328 /* If this is the top branch we may need to use u_freeheader() to update |
3329 * all the pointers. */ | |
3330 if (uhp == buf->b_u_oldhead) | |
3331 { | |
5448 | 3332 while (buf->b_u_oldhead != NULL) |
3333 u_freeheader(buf, buf->b_u_oldhead, uhpp); | |
1440 | 3334 return; |
3335 } | |
3336 | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3337 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
|
3338 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
753 | 3339 |
3340 next = uhp; | |
3341 while (next != NULL) | |
3342 { | |
3343 tofree = next; | |
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3344 if (tofree->uh_alt_next.ptr != NULL) |
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3345 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
|
3346 next = tofree->uh_prev.ptr; |
753 | 3347 u_freeentries(buf, tofree, uhpp); |
3348 } | |
3349 } | |
3350 | |
3351 /* | |
3352 * Free all the undo entries for one header and the header itself. | |
3353 * This means that "uhp" is invalid when returning. | |
3354 */ | |
3355 static void | |
7835
4d7ce6c03fda
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3356 u_freeentries( |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3357 buf_T *buf, |
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3358 u_header_T *uhp, |
4d7ce6c03fda
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3359 u_header_T **uhpp) /* if not NULL reset when freeing this header */ |
753 | 3360 { |
3361 u_entry_T *uep, *nuep; | |
3362 | |
3363 /* Check for pointers to the header that become invalid now. */ | |
3364 if (buf->b_u_curhead == uhp) | |
3365 buf->b_u_curhead = NULL; | |
1415 | 3366 if (buf->b_u_newhead == uhp) |
3367 buf->b_u_newhead = NULL; /* freeing the newest entry */ | |
753 | 3368 if (uhpp != NULL && uhp == *uhpp) |
3369 *uhpp = NULL; | |
3370 | |
3371 for (uep = uhp->uh_entry; uep != NULL; uep = nuep) | |
3372 { | |
3373 nuep = uep->ue_next; | |
3374 u_freeentry(uep, uep->ue_size); | |
3375 } | |
3376 | |
1415 | 3377 #ifdef U_DEBUG |
3378 uhp->uh_magic = 0; | |
3379 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3380 vim_free((char_u *)uhp); |
168 | 3381 --buf->b_u_numhead; |
7 | 3382 } |
3383 | |
3384 /* | |
3385 * free entry 'uep' and 'n' lines in uep->ue_array[] | |
3386 */ | |
3387 static void | |
7835
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3388 u_freeentry(u_entry_T *uep, long n) |
7 | 3389 { |
414 | 3390 while (n > 0) |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3391 vim_free(uep->ue_array[--n]); |
290ee42cae85
Remove old and unused method to allocate memory for undo.
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parents:
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diff
changeset
|
3392 vim_free((char_u *)uep->ue_array); |
1415 | 3393 #ifdef U_DEBUG |
3394 uep->ue_magic = 0; | |
3395 #endif | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3396 vim_free((char_u *)uep); |
7 | 3397 } |
3398 | |
3399 /* | |
3400 * invalidate the undo buffer; called when storage has already been released | |
3401 */ | |
3402 void | |
7835
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3403 u_clearall(buf_T *buf) |
7 | 3404 { |
3405 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL; | |
3406 buf->b_u_synced = TRUE; | |
3407 buf->b_u_numhead = 0; | |
3408 buf->b_u_line_ptr = NULL; | |
3409 buf->b_u_line_lnum = 0; | |
3410 } | |
3411 | |
3412 /* | |
3413 * save the line "lnum" for the "U" command | |
3414 */ | |
3415 void | |
7835
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3416 u_saveline(linenr_T lnum) |
7 | 3417 { |
3418 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */ | |
3419 return; | |
356 | 3420 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */ |
7 | 3421 return; |
3422 u_clearline(); | |
3423 curbuf->b_u_line_lnum = lnum; | |
3424 if (curwin->w_cursor.lnum == lnum) | |
3425 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3426 else | |
3427 curbuf->b_u_line_colnr = 0; | |
3428 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL) | |
3429 do_outofmem_msg((long_u)0); | |
3430 } | |
3431 | |
3432 /* | |
3433 * clear the line saved for the "U" command | |
3434 * (this is used externally for crossing a line while in insert mode) | |
3435 */ | |
3436 void | |
7835
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3437 u_clearline(void) |
7 | 3438 { |
3439 if (curbuf->b_u_line_ptr != NULL) | |
3440 { | |
2230
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parents:
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changeset
|
3441 vim_free(curbuf->b_u_line_ptr); |
7 | 3442 curbuf->b_u_line_ptr = NULL; |
3443 curbuf->b_u_line_lnum = 0; | |
3444 } | |
3445 } | |
3446 | |
3447 /* | |
3448 * Implementation of the "U" command. | |
3449 * Differentiation from vi: "U" can be undone with the next "U". | |
3450 * 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
|
3451 * Careful: may trigger autocommands that reload the buffer. |
7 | 3452 */ |
3453 void | |
7835
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parents:
7805
diff
changeset
|
3454 u_undoline(void) |
7 | 3455 { |
3456 colnr_T t; | |
3457 char_u *oldp; | |
3458 | |
3459 if (undo_off) | |
3460 return; | |
3461 | |
1534 | 3462 if (curbuf->b_u_line_ptr == NULL |
3463 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count) | |
7 | 3464 { |
3465 beep_flush(); | |
3466 return; | |
3467 } | |
1534 | 3468 |
3469 /* first save the line for the 'u' command */ | |
7 | 3470 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
|
3471 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL) |
7 | 3472 return; |
3473 oldp = u_save_line(curbuf->b_u_line_lnum); | |
3474 if (oldp == NULL) | |
3475 { | |
3476 do_outofmem_msg((long_u)0); | |
3477 return; | |
3478 } | |
3479 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE); | |
3480 changed_bytes(curbuf->b_u_line_lnum, 0); | |
2230
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Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3481 vim_free(curbuf->b_u_line_ptr); |
7 | 3482 curbuf->b_u_line_ptr = oldp; |
3483 | |
3484 t = curbuf->b_u_line_colnr; | |
3485 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum) | |
3486 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
3487 curwin->w_cursor.col = t; | |
3488 curwin->w_cursor.lnum = curbuf->b_u_line_lnum; | |
1534 | 3489 check_cursor_col(); |
7 | 3490 } |
3491 | |
3492 /* | |
168 | 3493 * Free all allocated memory blocks for the buffer 'buf'. |
3494 */ | |
3495 void | |
7835
4d7ce6c03fda
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3496 u_blockfree(buf_T *buf) |
168 | 3497 { |
753 | 3498 while (buf->b_u_oldhead != NULL) |
758 | 3499 u_freeheader(buf, buf->b_u_oldhead, NULL); |
2230
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Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3500 vim_free(buf->b_u_line_ptr); |
7 | 3501 } |
3502 | |
3503 /* | |
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3504 * u_save_line(): allocate memory and copy line 'lnum' into it. |
290ee42cae85
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3505 * Returns NULL when out of memory. |
7 | 3506 */ |
3507 static char_u * | |
7835
4d7ce6c03fda
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Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3508 u_save_line(linenr_T lnum) |
7 | 3509 { |
2230
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Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3510 return vim_strsave(ml_get(lnum)); |
7 | 3511 } |
3512 | |
3513 /* | |
3514 * Check if the 'modified' flag is set, or 'ff' has changed (only need to | |
3515 * check the first character, because it can only be "dos", "unix" or "mac"). | |
3516 * "nofile" and "scratch" type buffers are considered to always be unchanged. | |
3517 */ | |
3518 int | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3519 bufIsChanged(buf_T *buf) |
7 | 3520 { |
3521 return | |
3522 #ifdef FEAT_QUICKFIX | |
3523 !bt_dontwrite(buf) && | |
3524 #endif | |
2685 | 3525 (buf->b_changed || file_ff_differs(buf, TRUE)); |
7 | 3526 } |
3527 | |
3528 int | |
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3529 curbufIsChanged(void) |
7 | 3530 { |
3531 return | |
3532 #ifdef FEAT_QUICKFIX | |
3533 !bt_dontwrite(curbuf) && | |
3534 #endif | |
2685 | 3535 (curbuf->b_changed || file_ff_differs(curbuf, TRUE)); |
7 | 3536 } |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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diff
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|
3537 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3538 #if defined(FEAT_EVAL) || defined(PROTO) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
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|
3539 /* |
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Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3540 * For undotree(): Append the list of undo blocks at "first_uhp" to "list". |
941ff1cd317a
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diff
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|
3541 * Recursive. |
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Add file save counter to undo information. Add undotree() function.
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|
3542 */ |
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|
3543 void |
7835
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diff
changeset
|
3544 u_eval_tree(u_header_T *first_uhp, list_T *list) |
2280
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diff
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|
3545 { |
941ff1cd317a
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changeset
|
3546 u_header_T *uhp = first_uhp; |
941ff1cd317a
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changeset
|
3547 dict_T *dict; |
941ff1cd317a
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changeset
|
3548 |
941ff1cd317a
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changeset
|
3549 while (uhp != NULL) |
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|
3550 { |
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diff
changeset
|
3551 dict = dict_alloc(); |
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diff
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|
3552 if (dict == NULL) |
941ff1cd317a
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changeset
|
3553 return; |
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diff
changeset
|
3554 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL); |
2282
a888ed7ba375
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Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3555 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL); |
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3556 if (uhp == curbuf->b_u_newhead) |
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diff
changeset
|
3557 dict_add_nr_str(dict, "newhead", 1, NULL); |
941ff1cd317a
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diff
changeset
|
3558 if (uhp == curbuf->b_u_curhead) |
941ff1cd317a
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diff
changeset
|
3559 dict_add_nr_str(dict, "curhead", 1, NULL); |
941ff1cd317a
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diff
changeset
|
3560 if (uhp->uh_save_nr > 0) |
941ff1cd317a
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diff
changeset
|
3561 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL); |
941ff1cd317a
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diff
changeset
|
3562 |
941ff1cd317a
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2271
diff
changeset
|
3563 if (uhp->uh_alt_next.ptr != NULL) |
941ff1cd317a
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2271
diff
changeset
|
3564 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3565 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
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3566 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3567 if (alt_list != NULL) |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3568 { |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3569 /* 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
diff
changeset
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3570 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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3571 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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3572 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3573 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3574 |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3575 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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3576 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
|
3577 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3578 } |
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3579 #endif |