Mercurial > vim
annotate src/undo.c @ 10424:bc97f64c21c2 v8.0.0106
commit https://github.com/vim/vim/commit/0945eaface83e78138fbd40f95cc590bab0e8c86
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Nov 29 22:10:48 2016 +0100
patch 8.0.0106
Problem: Cannot use a semicolon in 'backupext'. (Jeff)
Solution: Allow for a few more characters when "secure" isn't set.
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Tue, 29 Nov 2016 22:15:03 +0100 |
| parents | 66f1b5bf3fa6 |
| children | de77fa909414 |
| rev | line source |
|---|---|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 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); | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
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. */ | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
501 while (uhfree->uh_alt_next.ptr != NULL) |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
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 | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
518 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
|
519 uhp->uh_next.ptr = curbuf->b_u_newhead; |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
520 uhp->uh_alt_next.ptr = old_curhead; |
| 753 | 521 if (old_curhead != NULL) |
| 522 { | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
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:
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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
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Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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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
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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 |
|
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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:
2210
diff
changeset
|
789 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
790 #ifdef HAVE_READLINK |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
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.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
794 ffname = fname_buf; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
795 #endif |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
796 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
797 /* Loop over 'undodir'. When reading find the first file that exists. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
798 * When not reading use the first directory that exists or ".". */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
799 dirp = p_udir; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
800 while (*dirp != NUL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
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:
2210
diff
changeset
|
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:
2210
diff
changeset
|
804 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
805 /* Use same directory as the ffname, |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
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.
Bram Moolenaar <bram@vim.org>
parents:
2210
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:
2210
diff
changeset
|
809 break; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
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.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
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:
2210
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
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Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
825 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
826 else |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
827 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
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:
2210
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:
2210
diff
changeset
|
830 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
831 if (munged_name == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
832 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
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:
2210
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:
2210
diff
changeset
|
835 return NULL; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
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:
2210
diff
changeset
|
837 if (vim_ispathsep(*p)) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
838 *p = '%'; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
839 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
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:
2210
diff
changeset
|
841 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
842 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
843 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
844 /* When reading check if the file exists. */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
845 if (undo_file_name != NULL && (!reading |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
846 || mch_stat((char *)undo_file_name, &st) >= 0)) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
847 break; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
848 vim_free(undo_file_name); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
849 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
|
850 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
851 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
852 vim_free(munged_name); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
853 return undo_file_name; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
854 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
855 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
856 static void |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
857 corruption_error(char *mesg, char_u *file_name) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
858 { |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
859 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
860 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
861 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
862 static void |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
863 u_free_uhp(u_header_T *uhp) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
864 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
865 u_entry_T *nuep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
866 u_entry_T *uep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
867 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
868 uep = uhp->uh_entry; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
869 while (uep != NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
870 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
871 nuep = uep->ue_next; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
872 u_freeentry(uep, uep->ue_size); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
873 uep = nuep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
874 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
875 vim_free(uhp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
876 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
877 |
|
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
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>
parents:
2262
diff
changeset
|
882 */ |
| 6122 | 883 static int |
|
7835
4d7ce6c03fda
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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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 | |
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936 fwrite_crypt(bufinfo_T *bi, char_u *ptr, size_t len) |
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937 { |
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938 #ifdef FEAT_CRYPT |
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939 char_u *copy; |
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940 char_u small_buf[100]; |
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941 size_t i; |
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942 |
| 6122 | 943 if (bi->bi_state != NULL && bi->bi_buffer == NULL) |
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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; | |
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959 } |
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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); | |
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1079 if (n == 0) |
| 6122 | 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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1212 |
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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 |
|
7835
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Christian Brabandt <cb@256bit.org>
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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); |
|
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1245 /* Assume NMARKS will stay the same. */ |
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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); | |
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1251 |
|
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|
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 */ | |
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1258 |
|
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1259 /* Write all the entries. */ |
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1260 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) |
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1261 { |
| 6122 | 1262 undo_write_bytes(bi, (long_u)UF_ENTRY_MAGIC, 2); |
| 1263 if (serialize_uep(bi, uep) == FAIL) | |
|
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1264 return FAIL; |
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1265 } |
| 6122 | 1266 undo_write_bytes(bi, (long_u)UF_ENTRY_END_MAGIC, 2); |
|
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1267 return OK; |
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1268 } |
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1269 |
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1270 static u_header_T * |
|
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1271 unserialize_uhp(bufinfo_T *bi, char_u *file_name) |
|
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1272 { |
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1273 u_header_T *uhp; |
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1274 int i; |
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1275 u_entry_T *uep, *last_uep; |
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1276 int c; |
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1277 int error; |
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1278 |
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1279 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
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1280 if (uhp == NULL) |
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1281 return NULL; |
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1282 vim_memset(uhp, 0, sizeof(u_header_T)); |
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1283 #ifdef U_DEBUG |
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1284 uhp->uh_magic = UH_MAGIC; |
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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); | |
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1291 if (uhp->uh_seq <= 0) |
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1292 { |
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1293 corruption_error("uh_seq", file_name); |
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1294 vim_free(uhp); |
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1295 return NULL; |
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1296 } |
| 6122 | 1297 unserialize_pos(bi, &uhp->uh_cursor); |
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1298 #ifdef FEAT_VIRTUALEDIT |
| 6122 | 1299 uhp->uh_cursor_vcol = undo_read_4c(bi); |
|
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1300 #else |
| 6122 | 1301 (void)undo_read_4c(bi); |
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1302 #endif |
| 6122 | 1303 uhp->uh_flags = undo_read_2c(bi); |
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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); | |
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1308 |
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1309 /* Optional fields. */ |
|
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1310 for (;;) |
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1311 { |
| 6122 | 1312 int len = undo_read_byte(bi); |
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1313 int what; |
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1314 |
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1315 if (len == 0) |
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1316 break; |
| 6122 | 1317 what = undo_read_byte(bi); |
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1318 switch (what) |
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1319 { |
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1320 case UHP_SAVE_NR: |
| 6122 | 1321 uhp->uh_save_nr = undo_read_4c(bi); |
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1322 break; |
|
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1323 default: |
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1324 /* field not supported, skip */ |
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1325 while (--len >= 0) |
| 6122 | 1326 (void)undo_read_byte(bi); |
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1327 } |
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1328 } |
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1329 |
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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) |
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1333 { |
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1334 error = FALSE; |
| 6122 | 1335 uep = unserialize_uep(bi, &error, file_name); |
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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); |
|
3d0a7beb0d75
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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 |
|
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|
1357 /* |
| 6122 | 1358 * Serialize "uep". |
|
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|
1359 */ |
|
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|
1360 static int |
|
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Christian Brabandt <cb@256bit.org>
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|
1361 serialize_uep( |
|
4d7ce6c03fda
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|
1362 bufinfo_T *bi, |
|
4d7ce6c03fda
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diff
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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; |
|
aa6412cab544
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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); | |
|
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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) |
|
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|
1376 return FAIL; |
| 6122 | 1377 if (len > 0 && fwrite_crypt(bi, uep->ue_array[i], len) == FAIL) |
|
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|
1378 return FAIL; |
|
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|
1379 } |
|
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|
1380 return OK; |
|
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|
1381 } |
|
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|
1382 |
|
aa6412cab544
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|
1383 static u_entry_T * |
|
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diff
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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; |
|
aa6412cab544
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|
1389 char_u *line; |
|
aa6412cab544
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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
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
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diff
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|
1413 else |
|
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
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|
1414 array = NULL; |
|
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|
1415 uep->ue_array = array; |
|
aa6412cab544
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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); |
|
2231
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|
1422 else |
|
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|
1423 { |
|
aa6412cab544
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|
1424 line = NULL; |
|
aa6412cab544
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diff
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|
1425 corruption_error("line length", file_name); |
|
aa6412cab544
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|
1426 } |
|
aa6412cab544
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|
1427 if (line == NULL) |
|
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|
1428 { |
|
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|
1429 *error = TRUE; |
|
aa6412cab544
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|
1430 return uep; |
|
aa6412cab544
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|
1431 } |
|
aa6412cab544
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|
1432 array[i] = line; |
|
aa6412cab544
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|
1433 } |
|
aa6412cab544
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|
1434 return uep; |
|
aa6412cab544
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|
1435 } |
|
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|
1436 |
|
aa6412cab544
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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); |
|
2238
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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); |
|
2238
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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); |
|
2238
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|
1466 if (pos->coladd < 0) |
|
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|
1467 pos->coladd = 0; |
|
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diff
changeset
|
1468 #else |
| 6122 | 1469 (void)undo_read_4c(bi); |
|
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Bram Moolenaar <bram@vim.org>
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diff
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|
1470 #endif |
|
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|
1471 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1472 |
|
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diff
changeset
|
1473 /* |
| 6122 | 1474 * Serialize "info". |
|
2231
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Various improvements to undo file code to make it more robust.
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diff
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|
1475 */ |
|
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1476 static void |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
1477 serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
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); | |
|
2231
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|
1483 } |
|
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parents:
2230
diff
changeset
|
1484 |
|
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diff
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|
1485 /* |
| 6122 | 1486 * Unserialize the visualinfo_T at the current position. |
|
2231
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Various improvements to undo file code to make it more robust.
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|
1487 */ |
|
aa6412cab544
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|
1488 static void |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
1489 unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
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. |
|
aa6412cab544
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diff
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|
1499 * When "name" is not NULL, use it as the name of the undo file. |
|
aa6412cab544
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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 |
|
aa6412cab544
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|
1502 * permissions. |
|
aa6412cab544
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|
1503 * "forceit" is TRUE for ":wundo!", FALSE otherwise. |
|
aa6412cab544
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|
1504 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1505 */ |
|
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Bram Moolenaar <bram@vim.org>
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diff
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|
1506 void |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
1507 u_write_undo( |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
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7805
diff
changeset
|
1508 char_u *name, |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
1509 int forceit, |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
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7805
diff
changeset
|
1510 buf_T *buf, |
|
4d7ce6c03fda
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Christian Brabandt <cb@256bit.org>
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7805
diff
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|
1511 char_u *hash) |
|
2231
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Bram Moolenaar <bram@vim.org>
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diff
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|
1512 { |
|
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parents:
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|
1513 u_header_T *uhp; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1514 char_u *file_name; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1515 int mark; |
|
2231
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Various improvements to undo file code to make it more robust.
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diff
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|
1516 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1517 int headers_written = 0; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1518 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
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|
1519 int fd; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1520 FILE *fp = NULL; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1521 int perm; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1522 int write_ok = FALSE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
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|
1523 #ifdef UNIX |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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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
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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>
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diff
changeset
|
1531 |
|
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Bram Moolenaar <bram@vim.org>
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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>
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diff
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|
1536 { |
|
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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|
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
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|
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:
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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.
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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:
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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
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
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 | |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
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
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
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
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
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
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2237 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
| 753 | 2238 curbuf->b_u_newhead = curbuf->b_u_curhead; |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
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
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
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 | |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2255 undo_time( |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2256 long step, |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2257 int sec, |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
2258 int file, |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
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
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
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
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
2289 if (step == 0) |
|
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
2290 { |
|
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
2291 /* target 0 does not exist, got to 1 and above it. */ |
|
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
2292 target = 1; |
|
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
2293 above = TRUE; |
|
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
2294 } |
|
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
2295 else |
|
17bbbca531be
commit https://github.com/vim/vim/commit/d22e9465f6228207a4fe722ee84371c7817060d6
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
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
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2303 if (dosec) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2304 target = (long)(curbuf->b_u_time_cur - starttime) + step; |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2305 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2306 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2307 if (step < 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2308 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2309 /* Going back to a previous write. If there were changes after |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2310 * the last write, count that as moving one file-write, so |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2311 * that ":earlier 1f" undoes all changes since the last save. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2312 uhp = curbuf->b_u_curhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2313 if (uhp != NULL) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2314 uhp = uhp->uh_next.ptr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2315 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2316 uhp = curbuf->b_u_newhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2317 if (uhp != NULL && uhp->uh_save_nr != 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2318 /* "uh_save_nr" was set in the last block, that means |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2319 * there were no changes since the last write */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2320 target = curbuf->b_u_save_nr_cur + step; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2321 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2322 /* count the changes since the last write as one step */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2323 target = curbuf->b_u_save_nr_cur + step + 1; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2324 if (target <= 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2325 /* Go to before first write: before the oldest change. Use |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2326 * the sequence number for that. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2327 dofile = FALSE; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2328 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2329 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2330 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2331 /* Moving forward to a newer write. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2332 target = curbuf->b_u_save_nr_cur + step; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2333 if (target > curbuf->b_u_save_nr_last) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2334 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2335 /* Go to after last write: after the latest change. Use |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2336 * the sequence number for that. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2337 target = curbuf->b_u_seq_last + 1; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2338 dofile = FALSE; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2339 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2340 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
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
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2352 if (dosec) |
|
9674
adc7212951ee
commit https://github.com/vim/vim/commit/170b10b421f0c9fda08b7cfd3bb043c064f3659a
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
2353 closest = (long)(vim_time() - starttime + 1); |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2354 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
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
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2390 if (dosec) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2391 val = (long)(uhp->uh_time - starttime); |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2392 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2393 val = uhp->uh_save_nr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2394 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2395 val = uhp->uh_seq; |
| 753 | 2396 |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
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".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2426 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
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
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2432 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2433 && uhp->uh_prev.ptr->uh_walk != mark) |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2434 uhp = uhp->uh_prev.ptr; |
| 753 | 2435 |
| 2436 /* 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
|
2437 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
|
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
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
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:
2239
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
bc4685345719
Don't use pointers to store numbers, use a union.
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
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2458 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
|
2459 uhp = uhp->uh_alt_prev.ptr; |
| 753 | 2460 else |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
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
Don't use pointers to store numbers, use a union.
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
Don't use pointers to store numbers, use a union.
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... */ |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10336
diff
changeset
|
2585 internal_error("undo_time()"); |
| 753 | 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 | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10336
diff
changeset
|
2657 IEMSG(_("E438: u_undo: line numbers wrong")); |
| 7 | 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
290ee42cae85
Remove old and unused method to allocate memory for undo.
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
Remove old and unused method to allocate memory for undo.
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:
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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:
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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'.
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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:
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diff
changeset
|
2865 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
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parents:
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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:
2239
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:
2239
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:
2239
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 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10336
diff
changeset
|
3237 IEMSG(_("E439: undo list corrupt")); |
| 7 | 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 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10336
diff
changeset
|
3269 IEMSG(_("E440: undo line missing")); |
| 7 | 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
Don't use pointers to store numbers, use a union.
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
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
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:
7805
diff
changeset
|
3358 u_header_T *uhp, |
|
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
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:
2229
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
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
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:
2229
diff
changeset
|
3391 vim_free(uep->ue_array[--n]); |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
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
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
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
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
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
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
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
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
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
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
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
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
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
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
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
290ee42cae85
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
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3505 * Returns NULL when out of memory. |
| 7 | 3506 */ |
| 3507 static char_u * | |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3508 u_save_line(linenr_T lnum) |
| 7 | 3509 { |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
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>
parents:
2271
diff
changeset
|
3537 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3538 #if defined(FEAT_EVAL) || defined(PROTO) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3539 /* |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3540 * For undotree(): Append the list of undo blocks at "first_uhp" to "list". |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3541 * Recursive. |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3542 */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3543 void |
|
7835
4d7ce6c03fda
commit https://github.com/vim/vim/commit/764b23c8fd3369cb05ae9122abf3ca16fec539d7
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
3544 u_eval_tree(u_header_T *first_uhp, list_T *list) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3545 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3546 u_header_T *uhp = first_uhp; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3547 dict_T *dict; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3548 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3549 while (uhp != NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3550 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3551 dict = dict_alloc(); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3552 if (dict == NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3553 return; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3554 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL); |
|
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3555 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3556 if (uhp == curbuf->b_u_newhead) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3557 dict_add_nr_str(dict, "newhead", 1, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3558 if (uhp == curbuf->b_u_curhead) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3559 dict_add_nr_str(dict, "curhead", 1, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3560 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
|
3561 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3562 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3563 if (uhp->uh_alt_next.ptr != NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3564 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
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
|
3566 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
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
|
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
|
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
|
3572 } |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3573 } |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
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
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changeset
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3576 uhp = uhp->uh_prev.ptr; |
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941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3577 } |
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941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
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3578 } |
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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 |