Mercurial > vim
annotate src/undo.c @ 5738:93bc4ba17595
Added tag v7-4-213 for changeset e25a04c1c515
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Sun, 23 Mar 2014 16:04:02 +0100 |
| parents | 50dbef5e774a |
| children | 410ef4f1a3d2 |
| rev | line source |
|---|---|
| 7 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 2 * | |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * undo.c: multi level undo facility | |
| 12 * | |
| 13 * The saved lines are stored in a list of lists (one for each buffer): | |
| 14 * | |
| 15 * b_u_oldhead------------------------------------------------+ | |
| 16 * | | |
| 17 * V | |
| 18 * +--------------+ +--------------+ +--------------+ | |
| 19 * b_u_newhead--->| u_header | | u_header | | u_header | | |
| 20 * | uh_next------>| uh_next------>| uh_next---->NULL | |
| 21 * NULL<--------uh_prev |<---------uh_prev |<---------uh_prev | | |
| 22 * | uh_entry | | uh_entry | | uh_entry | | |
| 23 * +--------|-----+ +--------|-----+ +--------|-----+ | |
| 24 * | | | | |
| 25 * V V V | |
| 26 * +--------------+ +--------------+ +--------------+ | |
| 27 * | u_entry | | u_entry | | u_entry | | |
| 28 * | ue_next | | ue_next | | ue_next | | |
| 29 * +--------|-----+ +--------|-----+ +--------|-----+ | |
| 30 * | | | | |
| 31 * V V V | |
| 32 * +--------------+ NULL NULL | |
| 33 * | u_entry | | |
| 34 * | ue_next | | |
| 35 * +--------|-----+ | |
| 36 * | | |
| 37 * V | |
| 38 * etc. | |
| 39 * | |
| 40 * Each u_entry list contains the information for one undo or redo. | |
| 41 * curbuf->b_u_curhead points to the header of the last undo (the next redo), | |
| 758 | 42 * or is NULL if nothing has been undone (end of the branch). |
| 7 | 43 * |
| 753 | 44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at |
| 45 * each point in the list a branch may appear for an alternate to redo. The | |
| 46 * uh_seq field is numbered sequentially to be able to find a newer or older | |
| 47 * branch. | |
| 48 * | |
| 758 | 49 * +---------------+ +---------------+ |
| 50 * b_u_oldhead --->| u_header | | u_header | | |
| 51 * | uh_alt_next ---->| uh_alt_next ----> NULL | |
| 52 * NULL <----- uh_alt_prev |<------ uh_alt_prev | | |
| 53 * | uh_prev | | uh_prev | | |
| 54 * +-----|---------+ +-----|---------+ | |
| 55 * | | | |
| 56 * V V | |
| 57 * +---------------+ +---------------+ | |
| 58 * | u_header | | u_header | | |
| 59 * | uh_alt_next | | uh_alt_next | | |
| 60 * b_u_newhead --->| uh_alt_prev | | uh_alt_prev | | |
| 61 * | uh_prev | | uh_prev | | |
| 62 * +-----|---------+ +-----|---------+ | |
| 63 * | | | |
| 64 * V V | |
| 65 * NULL +---------------+ +---------------+ | |
| 66 * | u_header | | u_header | | |
| 67 * | uh_alt_next ---->| uh_alt_next | | |
| 68 * | uh_alt_prev |<------ uh_alt_prev | | |
| 69 * | uh_prev | | uh_prev | | |
| 70 * +-----|---------+ +-----|---------+ | |
| 71 * | | | |
| 72 * etc. etc. | |
| 73 * | |
| 74 * | |
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75 * All data is allocated and will all be freed when the buffer is unloaded. |
| 7 | 76 */ |
| 77 | |
| 1415 | 78 /* Uncomment the next line for including the u_check() function. This warns |
| 79 * for errors in the debug information. */ | |
| 80 /* #define U_DEBUG 1 */ | |
| 81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */ | |
| 82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */ | |
| 83 | |
| 7 | 84 #include "vim.h" |
| 85 | |
| 5446 | 86 static long get_undolevel __ARGS((void)); |
| 758 | 87 static void u_unch_branch __ARGS((u_header_T *uhp)); |
| 7 | 88 static u_entry_T *u_get_headentry __ARGS((void)); |
| 89 static void u_getbot __ARGS((void)); | |
| 90 static void u_doit __ARGS((int count)); | |
| 777 | 91 static void u_undoredo __ARGS((int undo)); |
| 798 | 92 static void u_undo_end __ARGS((int did_undo, int absolute)); |
| 772 | 93 static void u_add_time __ARGS((char_u *buf, size_t buflen, time_t tt)); |
| 758 | 94 static void u_freeheader __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
| 753 | 95 static void u_freebranch __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
| 96 static void u_freeentries __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); | |
| 7 | 97 static void u_freeentry __ARGS((u_entry_T *, long)); |
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98 #ifdef FEAT_PERSISTENT_UNDO |
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99 static void corruption_error __ARGS((char *mesg, char_u *file_name)); |
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100 static void u_free_uhp __ARGS((u_header_T *uhp)); |
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101 static size_t fwrite_crypt __ARGS((buf_T *buf UNUSED, char_u *ptr, size_t len, FILE *fp)); |
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102 static char_u *read_string_decrypt __ARGS((buf_T *buf UNUSED, FILE *fd, int len)); |
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103 static int serialize_header __ARGS((FILE *fp, buf_T *buf, char_u *hash)); |
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104 static int serialize_uhp __ARGS((FILE *fp, buf_T *buf, u_header_T *uhp)); |
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105 static u_header_T *unserialize_uhp __ARGS((FILE *fp, char_u *file_name)); |
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106 static int serialize_uep __ARGS((FILE *fp, buf_T *buf, u_entry_T *uep)); |
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107 static u_entry_T *unserialize_uep __ARGS((FILE *fp, int *error, char_u *file_name)); |
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108 static void serialize_pos __ARGS((pos_T pos, FILE *fp)); |
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109 static void unserialize_pos __ARGS((pos_T *pos, FILE *fp)); |
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110 static void serialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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111 static void unserialize_visualinfo __ARGS((visualinfo_T *info, FILE *fp)); |
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112 static void put_header_ptr __ARGS((FILE *fp, u_header_T *uhp)); |
| 168 | 113 #endif |
| 7 | 114 |
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115 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE) |
| 7 | 116 static char_u *u_save_line __ARGS((linenr_T)); |
| 117 | |
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118 /* used in undo_end() to report number of added and deleted lines */ |
| 7 | 119 static long u_newcount, u_oldcount; |
| 120 | |
| 121 /* | |
| 122 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember | |
| 123 * the action that "u" should do. | |
| 124 */ | |
| 125 static int undo_undoes = FALSE; | |
| 126 | |
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127 static int lastmark = 0; |
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128 |
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129 #if defined(U_DEBUG) || defined(PROTO) |
| 1415 | 130 /* |
| 131 * Check the undo structures for being valid. Print a warning when something | |
| 132 * looks wrong. | |
| 133 */ | |
| 134 static int seen_b_u_curhead; | |
| 135 static int seen_b_u_newhead; | |
| 136 static int header_count; | |
| 137 | |
| 138 static void | |
| 139 u_check_tree(u_header_T *uhp, | |
| 140 u_header_T *exp_uh_next, | |
| 141 u_header_T *exp_uh_alt_prev) | |
| 142 { | |
| 143 u_entry_T *uep; | |
| 144 | |
| 145 if (uhp == NULL) | |
| 146 return; | |
| 147 ++header_count; | |
| 148 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1) | |
| 149 { | |
| 150 EMSG("b_u_curhead found twice (looping?)"); | |
| 151 return; | |
| 152 } | |
| 153 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1) | |
| 154 { | |
| 155 EMSG("b_u_newhead found twice (looping?)"); | |
| 156 return; | |
| 157 } | |
| 158 | |
| 159 if (uhp->uh_magic != UH_MAGIC) | |
| 160 EMSG("uh_magic wrong (may be using freed memory)"); | |
| 161 else | |
| 162 { | |
| 163 /* Check pointers back are correct. */ | |
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164 if (uhp->uh_next.ptr != exp_uh_next) |
| 1415 | 165 { |
| 166 EMSG("uh_next wrong"); | |
| 167 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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168 exp_uh_next, uhp->uh_next.ptr); |
| 1415 | 169 } |
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170 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev) |
| 1415 | 171 { |
| 172 EMSG("uh_alt_prev wrong"); | |
| 173 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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174 exp_uh_alt_prev, uhp->uh_alt_prev.ptr); |
| 1415 | 175 } |
| 176 | |
| 177 /* Check the undo tree at this header. */ | |
| 178 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) | |
| 179 { | |
| 180 if (uep->ue_magic != UE_MAGIC) | |
| 181 { | |
| 182 EMSG("ue_magic wrong (may be using freed memory)"); | |
| 183 break; | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 /* Check the next alt tree. */ | |
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188 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp); |
| 1415 | 189 |
| 190 /* Check the next header in this branch. */ | |
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191 u_check_tree(uhp->uh_prev.ptr, uhp, NULL); |
| 1415 | 192 } |
| 193 } | |
| 194 | |
| 2189 | 195 static void |
| 1415 | 196 u_check(int newhead_may_be_NULL) |
| 197 { | |
| 198 seen_b_u_newhead = 0; | |
| 199 seen_b_u_curhead = 0; | |
| 200 header_count = 0; | |
| 201 | |
| 202 u_check_tree(curbuf->b_u_oldhead, NULL, NULL); | |
| 203 | |
| 204 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL | |
| 205 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL)) | |
| 206 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead); | |
| 207 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0) | |
| 208 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead); | |
| 209 if (header_count != curbuf->b_u_numhead) | |
| 210 { | |
| 211 EMSG("b_u_numhead invalid"); | |
| 212 smsg((char_u *)"expected: %ld, actual: %ld", | |
| 213 (long)header_count, (long)curbuf->b_u_numhead); | |
| 214 } | |
| 215 } | |
| 216 #endif | |
| 217 | |
| 7 | 218 /* |
| 344 | 219 * Save the current line for both the "u" and "U" command. |
| 4303 | 220 * Careful: may trigger autocommands that reload the buffer. |
| 344 | 221 * Returns OK or FAIL. |
| 7 | 222 */ |
| 223 int | |
| 224 u_save_cursor() | |
| 225 { | |
| 226 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1), | |
| 227 (linenr_T)(curwin->w_cursor.lnum + 1))); | |
| 228 } | |
| 229 | |
| 230 /* | |
| 231 * Save the lines between "top" and "bot" for both the "u" and "U" command. | |
| 232 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1. | |
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233 * Careful: may trigger autocommands that reload the buffer. |
| 7 | 234 * Returns FAIL when lines could not be saved, OK otherwise. |
| 235 */ | |
| 236 int | |
| 237 u_save(top, bot) | |
| 238 linenr_T top, bot; | |
| 239 { | |
| 240 if (undo_off) | |
| 241 return OK; | |
| 242 | |
| 4303 | 243 if (top > curbuf->b_ml.ml_line_count |
| 244 || top >= bot | |
| 245 || bot > curbuf->b_ml.ml_line_count + 1) | |
| 7 | 246 return FALSE; /* rely on caller to do error messages */ |
| 247 | |
| 248 if (top + 2 == bot) | |
| 249 u_saveline((linenr_T)(top + 1)); | |
| 250 | |
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251 return (u_savecommon(top, bot, (linenr_T)0, FALSE)); |
| 7 | 252 } |
| 253 | |
| 254 /* | |
| 2181 | 255 * Save the line "lnum" (used by ":s" and "~" command). |
| 7 | 256 * The line is replaced, so the new bottom line is lnum + 1. |
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257 * Careful: may trigger autocommands that reload the buffer. |
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258 * Returns FAIL when lines could not be saved, OK otherwise. |
| 7 | 259 */ |
| 260 int | |
| 261 u_savesub(lnum) | |
| 262 linenr_T lnum; | |
| 263 { | |
| 264 if (undo_off) | |
| 265 return OK; | |
| 266 | |
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267 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE)); |
| 7 | 268 } |
| 269 | |
| 270 /* | |
| 2181 | 271 * A new line is inserted before line "lnum" (used by :s command). |
| 7 | 272 * The line is inserted, so the new bottom line is lnum + 1. |
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273 * Careful: may trigger autocommands that reload the buffer. |
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274 * Returns FAIL when lines could not be saved, OK otherwise. |
| 7 | 275 */ |
| 276 int | |
| 277 u_inssub(lnum) | |
| 278 linenr_T lnum; | |
| 279 { | |
| 280 if (undo_off) | |
| 281 return OK; | |
| 282 | |
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283 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE)); |
| 7 | 284 } |
| 285 | |
| 286 /* | |
| 2181 | 287 * Save the lines "lnum" - "lnum" + nlines (used by delete command). |
| 7 | 288 * The lines are deleted, so the new bottom line is lnum, unless the buffer |
| 289 * becomes empty. | |
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290 * Careful: may trigger autocommands that reload the buffer. |
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291 * Returns FAIL when lines could not be saved, OK otherwise. |
| 7 | 292 */ |
| 293 int | |
| 294 u_savedel(lnum, nlines) | |
| 295 linenr_T lnum; | |
| 296 long nlines; | |
| 297 { | |
| 298 if (undo_off) | |
| 299 return OK; | |
| 300 | |
| 301 return (u_savecommon(lnum - 1, lnum + nlines, | |
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302 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE)); |
| 7 | 303 } |
| 304 | |
| 632 | 305 /* |
| 306 * Return TRUE when undo is allowed. Otherwise give an error message and | |
| 307 * return FALSE. | |
| 308 */ | |
| 912 | 309 int |
| 632 | 310 undo_allowed() |
| 311 { | |
| 312 /* Don't allow changes when 'modifiable' is off. */ | |
| 313 if (!curbuf->b_p_ma) | |
| 314 { | |
| 315 EMSG(_(e_modifiable)); | |
| 316 return FALSE; | |
| 317 } | |
| 318 | |
| 319 #ifdef HAVE_SANDBOX | |
| 320 /* In the sandbox it's not allowed to change the text. */ | |
| 321 if (sandbox != 0) | |
| 322 { | |
| 323 EMSG(_(e_sandbox)); | |
| 324 return FALSE; | |
| 325 } | |
| 326 #endif | |
| 327 | |
| 328 /* Don't allow changes in the buffer while editing the cmdline. The | |
| 329 * caller of getcmdline() may get confused. */ | |
| 634 | 330 if (textlock != 0) |
| 632 | 331 { |
| 332 EMSG(_(e_secure)); | |
| 333 return FALSE; | |
| 334 } | |
| 335 | |
| 336 return TRUE; | |
| 337 } | |
| 338 | |
| 2189 | 339 /* |
| 5446 | 340 * Get the undolevle value for the current buffer. |
| 341 */ | |
| 342 static long | |
| 343 get_undolevel() | |
| 344 { | |
| 345 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL) | |
| 346 return p_ul; | |
| 347 return curbuf->b_p_ul; | |
| 348 } | |
| 349 | |
| 350 /* | |
| 2189 | 351 * Common code for various ways to save text before a change. |
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352 * "top" is the line above the first changed line. |
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353 * "bot" is the line below the last changed line. |
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354 * "newbot" is the new bottom line. Use zero when not known. |
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355 * "reload" is TRUE when saving for a buffer reload. |
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356 * Careful: may trigger autocommands that reload the buffer. |
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357 * Returns FAIL when lines could not be saved, OK otherwise. |
| 2189 | 358 */ |
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359 int |
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360 u_savecommon(top, bot, newbot, reload) |
| 7 | 361 linenr_T top, bot; |
| 362 linenr_T newbot; | |
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363 int reload; |
| 7 | 364 { |
| 753 | 365 linenr_T lnum; |
| 366 long i; | |
| 367 u_header_T *uhp; | |
| 368 u_header_T *old_curhead; | |
| 369 u_entry_T *uep; | |
| 370 u_entry_T *prev_uep; | |
| 371 long size; | |
| 7 | 372 |
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373 if (!reload) |
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374 { |
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375 /* When making changes is not allowed return FAIL. It's a crude way |
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376 * to make all change commands fail. */ |
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377 if (!undo_allowed()) |
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378 return FAIL; |
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379 |
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380 #ifdef FEAT_NETBEANS_INTG |
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381 /* |
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382 * Netbeans defines areas that cannot be modified. Bail out here when |
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383 * trying to change text in a guarded area. |
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384 */ |
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385 if (netbeans_active()) |
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386 { |
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387 if (netbeans_is_guarded(top, bot)) |
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388 { |
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389 EMSG(_(e_guarded)); |
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390 return FAIL; |
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391 } |
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392 if (curbuf->b_p_ro) |
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393 { |
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394 EMSG(_(e_nbreadonly)); |
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395 return FAIL; |
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396 } |
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397 } |
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398 #endif |
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399 |
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400 #ifdef FEAT_AUTOCMD |
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401 /* |
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402 * Saving text for undo means we are going to make a change. Give a |
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403 * warning for a read-only file before making the change, so that the |
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404 * FileChangedRO event can replace the buffer with a read-write version |
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405 * (e.g., obtained from a source control system). |
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406 */ |
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407 change_warning(0); |
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408 if (bot > curbuf->b_ml.ml_line_count + 1) |
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409 { |
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410 /* This happens when the FileChangedRO autocommand changes the |
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411 * file in a way it becomes shorter. */ |
| 5621 | 412 EMSG(_("E881: Line count changed unexpectedly")); |
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413 return FAIL; |
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414 } |
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415 #endif |
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416 } |
| 7 | 417 |
| 1415 | 418 #ifdef U_DEBUG |
| 419 u_check(FALSE); | |
| 420 #endif | |
| 7 | 421 |
| 422 size = bot - top - 1; | |
| 423 | |
| 424 /* | |
| 2189 | 425 * If curbuf->b_u_synced == TRUE make a new header. |
| 7 | 426 */ |
| 427 if (curbuf->b_u_synced) | |
| 428 { | |
| 429 #ifdef FEAT_JUMPLIST | |
| 430 /* Need to create new entry in b_changelist. */ | |
| 431 curbuf->b_new_change = TRUE; | |
| 432 #endif | |
| 433 | |
| 5446 | 434 if (get_undolevel() >= 0) |
| 753 | 435 { |
| 436 /* | |
| 437 * Make a new header entry. Do this first so that we don't mess | |
| 438 * up the undo info when out of memory. | |
| 439 */ | |
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440 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
| 753 | 441 if (uhp == NULL) |
| 442 goto nomem; | |
| 1415 | 443 #ifdef U_DEBUG |
| 444 uhp->uh_magic = UH_MAGIC; | |
| 445 #endif | |
| 753 | 446 } |
| 766 | 447 else |
| 448 uhp = NULL; | |
| 753 | 449 |
| 7 | 450 /* |
| 758 | 451 * If we undid more than we redid, move the entry lists before and |
| 452 * including curbuf->b_u_curhead to an alternate branch. | |
| 7 | 453 */ |
| 753 | 454 old_curhead = curbuf->b_u_curhead; |
| 455 if (old_curhead != NULL) | |
| 456 { | |
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457 curbuf->b_u_newhead = old_curhead->uh_next.ptr; |
| 753 | 458 curbuf->b_u_curhead = NULL; |
| 459 } | |
| 7 | 460 |
| 461 /* | |
| 462 * free headers to keep the size right | |
| 463 */ | |
| 5446 | 464 while (curbuf->b_u_numhead > get_undolevel() |
| 465 && curbuf->b_u_oldhead != NULL) | |
| 753 | 466 { |
| 758 | 467 u_header_T *uhfree = curbuf->b_u_oldhead; |
| 753 | 468 |
| 1415 | 469 if (uhfree == old_curhead) |
| 470 /* Can't reconnect the branch, delete all of it. */ | |
| 471 u_freebranch(curbuf, uhfree, &old_curhead); | |
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472 else if (uhfree->uh_alt_next.ptr == NULL) |
| 1415 | 473 /* There is no branch, only free one header. */ |
| 758 | 474 u_freeheader(curbuf, uhfree, &old_curhead); |
| 753 | 475 else |
| 476 { | |
| 477 /* Free the oldest alternate branch as a whole. */ | |
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478 while (uhfree->uh_alt_next.ptr != NULL) |
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479 uhfree = uhfree->uh_alt_next.ptr; |
| 758 | 480 u_freebranch(curbuf, uhfree, &old_curhead); |
| 753 | 481 } |
| 1415 | 482 #ifdef U_DEBUG |
| 483 u_check(TRUE); | |
| 484 #endif | |
| 753 | 485 } |
| 7 | 486 |
| 766 | 487 if (uhp == NULL) /* no undo at all */ |
| 7 | 488 { |
| 753 | 489 if (old_curhead != NULL) |
| 490 u_freebranch(curbuf, old_curhead, NULL); | |
| 7 | 491 curbuf->b_u_synced = FALSE; |
| 492 return OK; | |
| 493 } | |
| 494 | |
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495 uhp->uh_prev.ptr = NULL; |
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496 uhp->uh_next.ptr = curbuf->b_u_newhead; |
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497 uhp->uh_alt_next.ptr = old_curhead; |
| 753 | 498 if (old_curhead != NULL) |
| 499 { | |
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500 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr; |
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501 if (uhp->uh_alt_prev.ptr != NULL) |
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502 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp; |
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503 old_curhead->uh_alt_prev.ptr = uhp; |
| 753 | 504 if (curbuf->b_u_oldhead == old_curhead) |
| 505 curbuf->b_u_oldhead = uhp; | |
| 506 } | |
| 1056 | 507 else |
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508 uhp->uh_alt_prev.ptr = NULL; |
| 758 | 509 if (curbuf->b_u_newhead != NULL) |
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510 curbuf->b_u_newhead->uh_prev.ptr = uhp; |
| 758 | 511 |
| 777 | 512 uhp->uh_seq = ++curbuf->b_u_seq_last; |
| 513 curbuf->b_u_seq_cur = uhp->uh_seq; | |
| 758 | 514 uhp->uh_time = time(NULL); |
|
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515 uhp->uh_save_nr = 0; |
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516 curbuf->b_u_time_cur = uhp->uh_time + 1; |
| 758 | 517 |
| 753 | 518 uhp->uh_walk = 0; |
| 7 | 519 uhp->uh_entry = NULL; |
| 520 uhp->uh_getbot_entry = NULL; | |
| 521 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */ | |
| 522 #ifdef FEAT_VIRTUALEDIT | |
| 523 if (virtual_active() && curwin->w_cursor.coladd > 0) | |
| 524 uhp->uh_cursor_vcol = getviscol(); | |
| 525 else | |
| 526 uhp->uh_cursor_vcol = -1; | |
| 527 #endif | |
| 528 | |
| 529 /* save changed and buffer empty flag for undo */ | |
| 530 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) + | |
| 531 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
| 532 | |
| 692 | 533 /* save named marks and Visual marks for undo */ |
| 7 | 534 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); |
| 692 | 535 uhp->uh_visual = curbuf->b_visual; |
| 536 | |
| 7 | 537 curbuf->b_u_newhead = uhp; |
| 538 if (curbuf->b_u_oldhead == NULL) | |
| 539 curbuf->b_u_oldhead = uhp; | |
| 540 ++curbuf->b_u_numhead; | |
| 541 } | |
| 542 else | |
| 543 { | |
| 5446 | 544 if (get_undolevel() < 0) /* no undo at all */ |
| 7 | 545 return OK; |
| 546 | |
| 547 /* | |
| 548 * When saving a single line, and it has been saved just before, it | |
| 549 * doesn't make sense saving it again. Saves a lot of memory when | |
| 550 * making lots of changes inside the same line. | |
| 551 * This is only possible if the previous change didn't increase or | |
| 552 * decrease the number of lines. | |
| 553 * Check the ten last changes. More doesn't make sense and takes too | |
| 554 * long. | |
| 555 */ | |
| 556 if (size == 1) | |
| 557 { | |
| 558 uep = u_get_headentry(); | |
| 559 prev_uep = NULL; | |
| 560 for (i = 0; i < 10; ++i) | |
| 561 { | |
| 562 if (uep == NULL) | |
| 563 break; | |
| 564 | |
| 565 /* If lines have been inserted/deleted we give up. | |
| 566 * Also when the line was included in a multi-line save. */ | |
| 567 if ((curbuf->b_u_newhead->uh_getbot_entry != uep | |
| 568 ? (uep->ue_top + uep->ue_size + 1 | |
| 569 != (uep->ue_bot == 0 | |
| 570 ? curbuf->b_ml.ml_line_count + 1 | |
| 571 : uep->ue_bot)) | |
| 572 : uep->ue_lcount != curbuf->b_ml.ml_line_count) | |
| 573 || (uep->ue_size > 1 | |
| 574 && top >= uep->ue_top | |
| 575 && top + 2 <= uep->ue_top + uep->ue_size + 1)) | |
| 576 break; | |
| 577 | |
| 578 /* If it's the same line we can skip saving it again. */ | |
| 579 if (uep->ue_size == 1 && uep->ue_top == top) | |
| 580 { | |
| 581 if (i > 0) | |
| 582 { | |
| 583 /* It's not the last entry: get ue_bot for the last | |
| 584 * entry now. Following deleted/inserted lines go to | |
| 585 * the re-used entry. */ | |
| 586 u_getbot(); | |
| 587 curbuf->b_u_synced = FALSE; | |
| 588 | |
| 589 /* Move the found entry to become the last entry. The | |
| 590 * order of undo/redo doesn't matter for the entries | |
| 591 * we move it over, since they don't change the line | |
| 592 * count and don't include this line. It does matter | |
| 593 * for the found entry if the line count is changed by | |
| 594 * the executed command. */ | |
| 595 prev_uep->ue_next = uep->ue_next; | |
| 596 uep->ue_next = curbuf->b_u_newhead->uh_entry; | |
| 597 curbuf->b_u_newhead->uh_entry = uep; | |
| 598 } | |
| 599 | |
| 600 /* The executed command may change the line count. */ | |
| 601 if (newbot != 0) | |
| 602 uep->ue_bot = newbot; | |
| 603 else if (bot > curbuf->b_ml.ml_line_count) | |
| 604 uep->ue_bot = 0; | |
| 605 else | |
| 606 { | |
| 607 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
| 608 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
| 609 } | |
| 610 return OK; | |
| 611 } | |
| 612 prev_uep = uep; | |
| 613 uep = uep->ue_next; | |
| 614 } | |
| 615 } | |
| 616 | |
| 617 /* find line number for ue_bot for previous u_save() */ | |
| 618 u_getbot(); | |
| 619 } | |
| 620 | |
| 621 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__) | |
| 622 /* | |
| 623 * With Amiga and MSDOS 16 bit we can't handle big undo's, because | |
| 624 * then u_alloc_line would have to allocate a block larger than 32K | |
| 625 */ | |
| 626 if (size >= 8000) | |
| 627 goto nomem; | |
| 628 #endif | |
| 629 | |
| 630 /* | |
| 631 * add lines in front of entry list | |
| 632 */ | |
|
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290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
633 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
| 7 | 634 if (uep == NULL) |
| 635 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
|
636 vim_memset(uep, 0, sizeof(u_entry_T)); |
| 1415 | 637 #ifdef U_DEBUG |
| 638 uep->ue_magic = UE_MAGIC; | |
| 639 #endif | |
| 7 | 640 |
| 641 uep->ue_size = size; | |
| 642 uep->ue_top = top; | |
| 643 if (newbot != 0) | |
| 644 uep->ue_bot = newbot; | |
| 645 /* | |
| 646 * Use 0 for ue_bot if bot is below last line. | |
| 647 * Otherwise we have to compute ue_bot later. | |
| 648 */ | |
| 649 else if (bot > curbuf->b_ml.ml_line_count) | |
| 650 uep->ue_bot = 0; | |
| 651 else | |
| 652 { | |
| 653 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
| 654 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
| 655 } | |
| 656 | |
| 168 | 657 if (size > 0) |
| 7 | 658 { |
| 168 | 659 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
|
660 sizeof(char_u *) * size)) == NULL) |
| 7 | 661 { |
| 662 u_freeentry(uep, 0L); | |
| 663 goto nomem; | |
| 664 } | |
| 665 for (i = 0, lnum = top + 1; i < size; ++i) | |
| 666 { | |
| 481 | 667 fast_breakcheck(); |
| 668 if (got_int) | |
| 669 { | |
| 670 u_freeentry(uep, i); | |
| 671 return FAIL; | |
| 672 } | |
| 7 | 673 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL) |
| 674 { | |
| 675 u_freeentry(uep, i); | |
| 676 goto nomem; | |
| 677 } | |
| 678 } | |
| 679 } | |
| 359 | 680 else |
| 681 uep->ue_array = NULL; | |
| 7 | 682 uep->ue_next = curbuf->b_u_newhead->uh_entry; |
| 683 curbuf->b_u_newhead->uh_entry = uep; | |
| 684 curbuf->b_u_synced = FALSE; | |
| 685 undo_undoes = FALSE; | |
| 686 | |
| 1415 | 687 #ifdef U_DEBUG |
| 688 u_check(FALSE); | |
| 689 #endif | |
| 7 | 690 return OK; |
| 691 | |
| 692 nomem: | |
| 693 msg_silent = 0; /* must display the prompt */ | |
| 694 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE) | |
| 695 == 'y') | |
| 696 { | |
| 697 undo_off = TRUE; /* will be reset when character typed */ | |
| 698 return OK; | |
| 699 } | |
| 700 do_outofmem_msg((long_u)0); | |
| 701 return FAIL; | |
| 702 } | |
| 703 | |
|
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
704 #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
|
705 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
706 # 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
|
707 # 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
|
708 # 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
|
709 # 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
|
710 # 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
|
711 # 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
|
712 # 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
|
713 # 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
|
714 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
715 /* extra fields for header */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
716 # 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
|
717 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
718 /* extra fields for uhp */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
719 # 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
|
720 |
|
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
721 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
|
722 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
723 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
724 * 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
|
725 */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
726 void |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
727 u_compute_hash(hash) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
728 char_u *hash; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
729 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
730 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
|
731 linenr_T lnum; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
732 char_u *p; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
733 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
734 sha256_start(&ctx); |
| 3194 | 735 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
|
736 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
737 p = ml_get(lnum); |
|
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
738 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
|
739 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
740 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
|
741 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
742 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
743 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
744 * 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
|
745 * When "reading" is TRUE find the file to read, go over all directories in |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
746 * 'undodir'. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
747 * 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
|
748 * Returns NULL when there is no place to write or no file to read. |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
749 */ |
|
2236
dc2e5ec0500d
Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents:
2235
diff
changeset
|
750 char_u * |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
751 u_get_undo_file_name(buf_ffname, reading) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
752 char_u *buf_ffname; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
753 int reading; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
754 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
755 char_u *dirp; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
756 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
|
757 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
|
758 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
|
759 int dir_len; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
760 char_u *p; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
761 struct stat st; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
762 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
|
763 #ifdef HAVE_READLINK |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
764 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
|
765 #endif |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
766 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
767 if (ffname == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
768 return NULL; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
769 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
770 #ifdef HAVE_READLINK |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
771 /* 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
|
772 * 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
|
773 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
|
774 ffname = fname_buf; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
775 #endif |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
776 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
777 /* 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
|
778 * 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
|
779 dirp = p_udir; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
780 while (*dirp != NUL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
781 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
782 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
|
783 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
|
784 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
785 /* 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
|
786 * "dir/name" -> "dir/.name.un~" */ |
|
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
787 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
|
788 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
|
789 break; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
790 p = gettail(undo_file_name); |
| 5704 | 791 #ifdef VMS |
| 792 /* VMS can not handle more than one dot in the filenames | |
| 793 * use "dir/name" -> "dir/_un_name" - add _un_ | |
| 794 * at the beginning to keep the extension */ | |
| 795 mch_memmove(p + 4, p, STRLEN(p) + 1); | |
| 796 mch_memmove(p, "_un_", 4); | |
| 797 | |
| 798 #else | |
| 799 /* Use same directory as the ffname, | |
| 800 * "dir/name" -> "dir/.name.un~" */ | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
801 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
|
802 *p = '.'; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
803 STRCAT(p, ".un~"); |
| 5704 | 804 #endif |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
805 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
806 else |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
807 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
808 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
|
809 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
|
810 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
811 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
|
812 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
813 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
|
814 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
|
815 return NULL; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
816 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
|
817 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
|
818 *p = '%'; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
819 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
820 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
|
821 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
822 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
823 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
824 /* 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
|
825 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
|
826 || 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
|
827 break; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
828 vim_free(undo_file_name); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
829 undo_file_name = NULL; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
830 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
831 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
832 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
|
833 return undo_file_name; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
834 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
835 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
836 static void |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
837 corruption_error(mesg, file_name) |
|
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
838 char *mesg; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
839 char_u *file_name; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
840 { |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
841 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
|
842 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
843 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
844 static void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
845 u_free_uhp(uhp) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
846 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
|
847 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
848 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
|
849 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
|
850 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
851 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
|
852 while (uep != NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
853 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
854 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
|
855 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
|
856 uep = nuep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
857 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
858 vim_free(uhp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
859 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
860 |
|
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
861 /* |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
862 * Like fwrite() but crypt the bytes when 'key' is set. |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
863 * Returns 1 if successful. |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
864 */ |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
865 static size_t |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
866 fwrite_crypt(buf, ptr, len, fp) |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
867 buf_T *buf UNUSED; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
868 char_u *ptr; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
869 size_t len; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
870 FILE *fp; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
871 { |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
872 #ifdef FEAT_CRYPT |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
873 char_u *copy; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
874 char_u small_buf[100]; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
875 size_t i; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
876 |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
877 if (*buf->b_p_key == NUL) |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
878 return fwrite(ptr, len, (size_t)1, fp); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
879 if (len < 100) |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
880 copy = small_buf; /* no malloc()/free() for short strings */ |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
881 else |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
882 { |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
883 copy = lalloc(len, FALSE); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
884 if (copy == NULL) |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
885 return 0; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
886 } |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
887 crypt_encode(ptr, len, copy); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
888 i = fwrite(copy, len, (size_t)1, fp); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
889 if (copy != small_buf) |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
890 vim_free(copy); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
891 return i; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
892 #else |
|
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Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
893 return fwrite(ptr, len, (size_t)1, fp); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
894 #endif |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
895 } |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
896 |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
897 /* |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
898 * Read a string of length "len" from "fd". |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
899 * When 'key' is set decrypt the bytes. |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
900 */ |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
901 static char_u * |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
902 read_string_decrypt(buf, fd, len) |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
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diff
changeset
|
903 buf_T *buf UNUSED; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
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diff
changeset
|
904 FILE *fd; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
905 int len; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
906 { |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
907 char_u *ptr; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
908 |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
909 ptr = read_string(fd, len); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
910 #ifdef FEAT_CRYPT |
|
2410
8f6106dd3d12
Fix: editing a not encrypted file after a crypted file messed up reading the
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
911 if (ptr != NULL && *buf->b_p_key != NUL) |
|
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
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parents:
2262
diff
changeset
|
912 crypt_decode(ptr, len); |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
913 #endif |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
914 return ptr; |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
915 } |
|
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
916 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
917 static int |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
918 serialize_header(fp, buf, hash) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
919 FILE *fp; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
920 buf_T *buf; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
921 char_u *hash; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
922 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
923 int len; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
924 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
925 /* Start writing, first the magic marker and undo info version. */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
926 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
927 return FAIL; |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
928 |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
929 /* If the buffer is encrypted then all text bytes following will be |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
930 * encrypted. Numbers and other info is not crypted. */ |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
931 #ifdef FEAT_CRYPT |
|
2410
8f6106dd3d12
Fix: editing a not encrypted file after a crypted file messed up reading the
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
932 if (*buf->b_p_key != NUL) |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
933 { |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
934 char_u *header; |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
935 int header_len; |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
936 |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
937 put_bytes(fp, (long_u)UF_VERSION_CRYPT, 2); |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
938 header = prepare_crypt_write(buf, &header_len); |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
939 if (header == NULL) |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
940 return FAIL; |
|
2245
4e0124f5aee2
Optimize the blowfish crypt/decrypt code a bit more.
Bram Moolenaar <bram@vim.org>
parents:
2242
diff
changeset
|
941 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp); |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
942 vim_free(header); |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
943 if (len != 1) |
| 2267 | 944 { |
| 945 crypt_pop_state(); | |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
946 return FAIL; |
| 2267 | 947 } |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
948 } |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
949 else |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
950 #endif |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
951 put_bytes(fp, (long_u)UF_VERSION, 2); |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
952 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
953 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
954 /* Write a hash of the buffer text, so that we can verify it is still the |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
955 * same when reading the buffer text. */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
956 if (fwrite(hash, (size_t)UNDO_HASH_SIZE, (size_t)1, fp) != 1) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
957 return FAIL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
958 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
959 /* buffer-specific data */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
960 put_bytes(fp, (long_u)buf->b_ml.ml_line_count, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
961 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
962 put_bytes(fp, (long_u)len, 4); |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
963 if (len > 0 && fwrite_crypt(buf, buf->b_u_line_ptr, (size_t)len, fp) != 1) |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
964 return FAIL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
965 put_bytes(fp, (long_u)buf->b_u_line_lnum, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
966 put_bytes(fp, (long_u)buf->b_u_line_colnr, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
967 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
968 /* Undo structures header data */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
969 put_header_ptr(fp, buf->b_u_oldhead); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
970 put_header_ptr(fp, buf->b_u_newhead); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
971 put_header_ptr(fp, buf->b_u_curhead); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
972 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
973 put_bytes(fp, (long_u)buf->b_u_numhead, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
974 put_bytes(fp, (long_u)buf->b_u_seq_last, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
975 put_bytes(fp, (long_u)buf->b_u_seq_cur, 4); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
976 put_time(fp, buf->b_u_time_cur); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
977 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
978 /* Optional fields. */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
979 putc(4, fp); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
980 putc(UF_LAST_SAVE_NR, fp); |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
981 put_bytes(fp, (long_u)buf->b_u_save_nr_last, 4); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
982 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
983 putc(0, fp); /* end marker */ |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
984 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
985 return OK; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
986 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
987 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
988 static int |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
989 serialize_uhp(fp, buf, uhp) |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
990 FILE *fp; |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
991 buf_T *buf; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
992 u_header_T *uhp; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
993 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
994 int i; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
995 u_entry_T *uep; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
996 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
997 if (put_bytes(fp, (long_u)UF_HEADER_MAGIC, 2) == FAIL) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
998 return FAIL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
999 |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1000 put_header_ptr(fp, uhp->uh_next.ptr); |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1001 put_header_ptr(fp, uhp->uh_prev.ptr); |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1002 put_header_ptr(fp, uhp->uh_alt_next.ptr); |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1003 put_header_ptr(fp, uhp->uh_alt_prev.ptr); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1004 put_bytes(fp, uhp->uh_seq, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1005 serialize_pos(uhp->uh_cursor, fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1006 #ifdef FEAT_VIRTUALEDIT |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1007 put_bytes(fp, (long_u)uhp->uh_cursor_vcol, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1008 #else |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1009 put_bytes(fp, (long_u)0, 4); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1010 #endif |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1011 put_bytes(fp, (long_u)uhp->uh_flags, 2); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1012 /* Assume NMARKS will stay the same. */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1013 for (i = 0; i < NMARKS; ++i) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1014 serialize_pos(uhp->uh_namedm[i], fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1015 serialize_visualinfo(&uhp->uh_visual, fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1016 put_time(fp, uhp->uh_time); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1017 |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1018 /* Optional fields. */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1019 putc(4, fp); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1020 putc(UHP_SAVE_NR, fp); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1021 put_bytes(fp, (long_u)uhp->uh_save_nr, 4); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1022 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1023 putc(0, fp); /* end marker */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1024 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1025 /* Write all the entries. */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1026 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1027 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1028 put_bytes(fp, (long_u)UF_ENTRY_MAGIC, 2); |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1029 if (serialize_uep(fp, buf, uep) == FAIL) |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1030 return FAIL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1031 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1032 put_bytes(fp, (long_u)UF_ENTRY_END_MAGIC, 2); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1033 return OK; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1034 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1035 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1036 static u_header_T * |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1037 unserialize_uhp(fp, file_name) |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1038 FILE *fp; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1039 char_u *file_name; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1040 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1041 u_header_T *uhp; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1042 int i; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1043 u_entry_T *uep, *last_uep; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1044 int c; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1045 int error; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1046 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1047 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1048 if (uhp == NULL) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1049 return NULL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1050 vim_memset(uhp, 0, sizeof(u_header_T)); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1051 #ifdef U_DEBUG |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1052 uhp->uh_magic = UH_MAGIC; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1053 #endif |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1054 uhp->uh_next.seq = get4c(fp); |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1055 uhp->uh_prev.seq = get4c(fp); |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1056 uhp->uh_alt_next.seq = get4c(fp); |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1057 uhp->uh_alt_prev.seq = get4c(fp); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1058 uhp->uh_seq = get4c(fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1059 if (uhp->uh_seq <= 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1060 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1061 corruption_error("uh_seq", file_name); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1062 vim_free(uhp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1063 return NULL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1064 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1065 unserialize_pos(&uhp->uh_cursor, fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1066 #ifdef FEAT_VIRTUALEDIT |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1067 uhp->uh_cursor_vcol = get4c(fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1068 #else |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1069 (void)get4c(fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1070 #endif |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1071 uhp->uh_flags = get2c(fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1072 for (i = 0; i < NMARKS; ++i) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1073 unserialize_pos(&uhp->uh_namedm[i], fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1074 unserialize_visualinfo(&uhp->uh_visual, fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1075 uhp->uh_time = get8ctime(fp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1076 |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1077 /* Optional fields. */ |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1078 for (;;) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1079 { |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1080 int len = getc(fp); |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1081 int what; |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1082 |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1083 if (len == 0) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1084 break; |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1085 what = getc(fp); |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1086 switch (what) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1087 { |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1088 case UHP_SAVE_NR: |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1089 uhp->uh_save_nr = get4c(fp); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1090 break; |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1091 default: |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1092 /* field not supported, skip */ |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1093 while (--len >= 0) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1094 (void)getc(fp); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1095 } |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1096 } |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1097 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1098 /* Unserialize the uep list. */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1099 last_uep = NULL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1100 while ((c = get2c(fp)) == UF_ENTRY_MAGIC) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1101 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1102 error = FALSE; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1103 uep = unserialize_uep(fp, &error, file_name); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1104 if (last_uep == NULL) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1105 uhp->uh_entry = uep; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1106 else |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1107 last_uep->ue_next = uep; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1108 last_uep = uep; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1109 if (uep == NULL || error) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1110 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1111 u_free_uhp(uhp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1112 return NULL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1113 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1114 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1115 if (c != UF_ENTRY_END_MAGIC) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1116 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1117 corruption_error("entry end", file_name); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1118 u_free_uhp(uhp); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1119 return NULL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1120 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1121 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1122 return uhp; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1123 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1124 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1125 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1126 * Serialize "uep" to "fp". |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1127 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1128 static int |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1129 serialize_uep(fp, buf, uep) |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1130 FILE *fp; |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1131 buf_T *buf; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1132 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
|
1133 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1134 int i; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1135 size_t len; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1136 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1137 put_bytes(fp, (long_u)uep->ue_top, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1138 put_bytes(fp, (long_u)uep->ue_bot, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1139 put_bytes(fp, (long_u)uep->ue_lcount, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1140 put_bytes(fp, (long_u)uep->ue_size, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1141 for (i = 0; i < uep->ue_size; ++i) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1142 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1143 len = STRLEN(uep->ue_array[i]); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1144 if (put_bytes(fp, (long_u)len, 4) == FAIL) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1145 return FAIL; |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1146 if (len > 0 && fwrite_crypt(buf, uep->ue_array[i], len, fp) != 1) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1147 return FAIL; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1148 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1149 return OK; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1150 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1151 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1152 static u_entry_T * |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1153 unserialize_uep(fp, error, file_name) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1154 FILE *fp; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1155 int *error; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1156 char_u *file_name; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1157 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1158 int i; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1159 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
|
1160 char_u **array; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1161 char_u *line; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1162 int line_len; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1163 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1164 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1165 if (uep == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1166 return NULL; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1167 vim_memset(uep, 0, sizeof(u_entry_T)); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1168 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1169 uep->ue_magic = UE_MAGIC; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1170 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1171 uep->ue_top = get4c(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1172 uep->ue_bot = get4c(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1173 uep->ue_lcount = get4c(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1174 uep->ue_size = get4c(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1175 if (uep->ue_size > 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1176 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1177 array = (char_u **)U_ALLOC_LINE(sizeof(char_u *) * uep->ue_size); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1178 if (array == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1179 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1180 *error = TRUE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1181 return uep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1182 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1183 vim_memset(array, 0, sizeof(char_u *) * uep->ue_size); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1184 } |
|
2232
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents:
2231
diff
changeset
|
1185 else |
|
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents:
2231
diff
changeset
|
1186 array = NULL; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1187 uep->ue_array = array; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1188 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1189 for (i = 0; i < uep->ue_size; ++i) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1190 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1191 line_len = get4c(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1192 if (line_len >= 0) |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1193 line = read_string_decrypt(curbuf, fp, line_len); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1194 else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1195 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1196 line = NULL; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1197 corruption_error("line length", file_name); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1198 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1199 if (line == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1200 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1201 *error = TRUE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1202 return uep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1203 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1204 array[i] = line; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1205 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1206 return uep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1207 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1208 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1209 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1210 * Serialize "pos" to "fp". |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1211 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1212 static void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1213 serialize_pos(pos, fp) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1214 pos_T pos; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1215 FILE *fp; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1216 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1217 put_bytes(fp, (long_u)pos.lnum, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1218 put_bytes(fp, (long_u)pos.col, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1219 #ifdef FEAT_VIRTUALEDIT |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1220 put_bytes(fp, (long_u)pos.coladd, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1221 #else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1222 put_bytes(fp, (long_u)0, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1223 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1224 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1225 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1226 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1227 * Unserialize the pos_T at the current position in fp. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1228 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1229 static void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1230 unserialize_pos(pos, fp) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1231 pos_T *pos; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1232 FILE *fp; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1233 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1234 pos->lnum = get4c(fp); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1235 if (pos->lnum < 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1236 pos->lnum = 0; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1237 pos->col = get4c(fp); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1238 if (pos->col < 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1239 pos->col = 0; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1240 #ifdef FEAT_VIRTUALEDIT |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1241 pos->coladd = get4c(fp); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1242 if (pos->coladd < 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1243 pos->coladd = 0; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1244 #else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1245 (void)get4c(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1246 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1247 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1248 |
|
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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|
1249 /* |
|
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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|
1250 * Serialize "info" to "fp". |
|
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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|
1251 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1252 static void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1253 serialize_visualinfo(info, fp) |
|
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1254 visualinfo_T *info; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
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|
1255 FILE *fp; |
|
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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|
1256 { |
|
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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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|
1257 serialize_pos(info->vi_start, fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
changeset
|
1258 serialize_pos(info->vi_end, fp); |
|
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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|
1259 put_bytes(fp, (long_u)info->vi_mode, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1260 put_bytes(fp, (long_u)info->vi_curswant, 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1261 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1262 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1263 /* |
|
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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|
1264 * Unserialize the visualinfo_T at the current position in fp. |
|
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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|
1265 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1266 static void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1267 unserialize_visualinfo(info, fp) |
|
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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|
1268 visualinfo_T *info; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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2230
diff
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|
1269 FILE *fp; |
|
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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|
1270 { |
|
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1271 unserialize_pos(&info->vi_start, fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1272 unserialize_pos(&info->vi_end, fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1273 info->vi_mode = get4c(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1274 info->vi_curswant = get4c(fp); |
|
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1275 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1276 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1277 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1278 * Write the pointer to an undo header. Instead of writing the pointer itself |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
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|
1279 * we use the sequence number of the header. This is converted back to |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1280 * pointers when reading. */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1281 static void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1282 put_header_ptr(fp, uhp) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1283 FILE *fp; |
|
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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|
1284 u_header_T *uhp; |
|
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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|
1285 { |
|
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Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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|
1286 put_bytes(fp, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1287 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1288 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1289 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1290 * Write the undo tree in an undo file. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
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|
1291 * When "name" is not NULL, use it as the name of the undo file. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
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|
1292 * Otherwise use buf->b_ffname to generate the undo file name. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1293 * "buf" must never be null, buf->b_ffname is used to obtain the original file |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1294 * permissions. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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diff
changeset
|
1295 * "forceit" is TRUE for ":wundo!", FALSE otherwise. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
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|
1296 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1297 */ |
|
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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|
1298 void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1299 u_write_undo(name, forceit, buf, hash) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1300 char_u *name; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1301 int forceit; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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2230
diff
changeset
|
1302 buf_T *buf; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1303 char_u *hash; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1304 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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changeset
|
1305 u_header_T *uhp; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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2230
diff
changeset
|
1306 char_u *file_name; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1307 int mark; |
|
2231
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Various improvements to undo file code to make it more robust.
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diff
changeset
|
1308 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1309 int headers_written = 0; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1310 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1311 int fd; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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changeset
|
1312 FILE *fp = NULL; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
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|
1313 int perm; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1314 int write_ok = FALSE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1315 #ifdef UNIX |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1316 int st_old_valid = FALSE; |
|
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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|
1317 struct stat st_old; |
|
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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|
1318 struct stat st_new; |
|
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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|
1319 #endif |
| 2267 | 1320 #ifdef FEAT_CRYPT |
| 1321 int do_crypt = FALSE; | |
| 1322 #endif | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1323 |
|
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Various improvements to undo file code to make it more robust.
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|
1324 if (name == NULL) |
|
aa6412cab544
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Bram Moolenaar <bram@vim.org>
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changeset
|
1325 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
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2289
diff
changeset
|
1326 file_name = u_get_undo_file_name(buf->b_ffname, FALSE); |
|
2231
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Various improvements to undo file code to make it more robust.
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|
1327 if (file_name == NULL) |
|
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Bram Moolenaar <bram@vim.org>
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|
1328 { |
|
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|
1329 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
|
1330 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1331 verbose_enter(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1332 smsg((char_u *) |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
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diff
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|
1333 _("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>
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diff
changeset
|
1334 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
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diff
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|
1335 } |
|
2231
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|
1336 return; |
|
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|
1337 } |
|
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|
1338 } |
|
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|
1339 else |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
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diff
changeset
|
1340 file_name = name; |
|
2231
aa6412cab544
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|
1341 |
|
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|
1342 /* |
|
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|
1343 * 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.
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|
1344 * has a name use the permission of the original file. Otherwise only |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1345 * allow the user to access the undo file. |
|
aa6412cab544
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|
1346 */ |
|
aa6412cab544
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|
1347 perm = 0600; |
|
aa6412cab544
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|
1348 if (buf->b_ffname != NULL) |
|
aa6412cab544
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|
1349 { |
|
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|
1350 #ifdef UNIX |
|
aa6412cab544
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changeset
|
1351 if (mch_stat((char *)buf->b_ffname, &st_old) >= 0) |
|
aa6412cab544
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|
1352 { |
|
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|
1353 perm = st_old.st_mode; |
|
aa6412cab544
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changeset
|
1354 st_old_valid = TRUE; |
|
aa6412cab544
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|
1355 } |
|
aa6412cab544
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changeset
|
1356 #else |
|
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|
1357 perm = mch_getperm(buf->b_ffname); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1358 if (perm < 0) |
|
aa6412cab544
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changeset
|
1359 perm = 0600; |
|
aa6412cab544
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|
1360 #endif |
|
aa6412cab544
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|
1361 } |
|
aa6412cab544
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diff
changeset
|
1362 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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2230
diff
changeset
|
1363 /* strip any s-bit */ |
|
aa6412cab544
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|
1364 perm = perm & 0777; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1365 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1366 /* If 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
|
1367 * 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
|
1368 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
|
1369 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1370 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
|
1371 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1372 /* 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
|
1373 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
|
1374 if (fd < 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1375 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1376 if (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
|
1377 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1378 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
|
1379 verbose_enter(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1380 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
|
1381 _("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
|
1382 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
|
1383 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
|
1384 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1385 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1386 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1387 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1388 else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1389 { |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1390 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
|
1391 int len; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1392 |
| 2664 | 1393 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
|
1394 close(fd); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1395 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
|
1396 || 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
|
1397 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1398 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
|
1399 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1400 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
|
1401 verbose_enter(); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1402 smsg((char_u *) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1403 _("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
|
1404 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
|
1405 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
|
1406 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1407 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1408 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1409 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1410 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1411 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1412 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
|
1413 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1414 |
|
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1415 /* 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
|
1416 * existing undo file. */ |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1417 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
|
1418 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1419 if (p_verbose > 0) |
| 2262 | 1420 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
|
1421 goto theend; |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1422 } |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1423 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1424 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
|
1425 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
|
1426 if (fd < 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1427 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1428 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
|
1429 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1430 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1431 (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
|
1432 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
|
1433 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1434 verbose_enter(); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1435 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
|
1436 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1437 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1438 |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1439 #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
|
1440 /* 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
|
1441 u_check(FALSE); |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1442 #endif |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1443 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1444 #ifdef UNIX |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1445 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1446 * 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
|
1447 * 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
|
1448 * 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
|
1449 */ |
|
2367
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1450 if (st_old_valid |
|
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1451 && 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
|
1452 && 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
|
1453 # 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
|
1454 && 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
|
1455 # endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1456 ) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1457 mch_setperm(file_name, (perm & 0707) | ((perm & 07) << 3)); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1458 # ifdef HAVE_SELINUX |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1459 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
|
1460 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
|
1461 # endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1462 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1463 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1464 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
|
1465 if (fp == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1466 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1467 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
|
1468 close(fd); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1469 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
|
1470 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1471 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1472 |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1473 /* Undo must be synced. */ |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1474 u_sync(TRUE); |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1475 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1476 /* |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1477 * Write the header. |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1478 */ |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1479 if (serialize_header(fp, buf, hash) == FAIL) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1480 goto write_error; |
| 2267 | 1481 #ifdef FEAT_CRYPT |
|
2410
8f6106dd3d12
Fix: editing a not encrypted file after a crypted file messed up reading the
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1482 if (*buf->b_p_key != NUL) |
| 2267 | 1483 do_crypt = TRUE; |
| 1484 #endif | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1485 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1486 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1487 * 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
|
1488 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1489 mark = ++lastmark; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1490 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
|
1491 while (uhp != NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1492 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1493 /* 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
|
1494 if (uhp->uh_walk != mark) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1495 { |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1496 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
|
1497 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1498 ++headers_written; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1499 #endif |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1500 if (serialize_uhp(fp, buf, uhp) == FAIL) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1501 goto write_error; |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1502 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1503 |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1504 /* 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
|
1505 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
|
1506 uhp = uhp->uh_prev.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1507 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
|
1508 && 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
|
1509 uhp = uhp->uh_alt_next.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1510 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
|
1511 && uhp->uh_next.ptr->uh_walk != mark) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1512 uhp = uhp->uh_next.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1513 else if (uhp->uh_alt_prev.ptr != NULL) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1514 uhp = uhp->uh_alt_prev.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1515 else |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1516 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
|
1517 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1518 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1519 if (put_bytes(fp, (long_u)UF_HEADER_END_MAGIC, 2) == OK) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1520 write_ok = TRUE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1521 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1522 if (headers_written != buf->b_u_numhead) |
|
4827
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1523 { |
|
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1524 EMSGN("Written %ld headers, ...", headers_written); |
|
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1525 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
|
1526 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1527 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1528 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1529 write_error: |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1530 fclose(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1531 if (!write_ok) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1532 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
|
1533 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1534 #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
|
1535 /* 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
|
1536 * 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
|
1537 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
|
1538 (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
|
1539 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1540 #ifdef HAVE_ACL |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1541 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
|
1542 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1543 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
|
1544 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1545 /* 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
|
1546 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
|
1547 mch_set_acl(file_name, acl); |
| 3545 | 1548 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
|
1549 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1550 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1551 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1552 theend: |
| 2267 | 1553 #ifdef FEAT_CRYPT |
| 1554 if (do_crypt) | |
| 1555 crypt_pop_state(); | |
| 1556 #endif | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1557 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
|
1558 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
|
1559 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1560 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1561 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1562 * 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
|
1563 * 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
|
1564 * 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
|
1565 * 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
|
1566 * "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
|
1567 */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1568 void |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1569 u_read_undo(name, hash, orig_name) |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1570 char_u *name; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1571 char_u *hash; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1572 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
|
1573 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1574 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
|
1575 FILE *fp; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1576 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
|
1577 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
|
1578 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
|
1579 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
|
1580 linenr_T line_count; |
|
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
1581 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
|
1582 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
|
1583 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
|
1584 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
|
1585 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
|
1586 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
|
1587 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
|
1588 int i, j; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1589 int c; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1590 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
|
1591 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
|
1592 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
|
1593 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
|
1594 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1595 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
|
1596 #endif |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1597 #ifdef UNIX |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1598 struct stat st_orig; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1599 struct stat st_undo; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1600 #endif |
| 2267 | 1601 #ifdef FEAT_CRYPT |
| 1602 int do_decrypt = FALSE; | |
| 1603 #endif | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1604 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1605 if (name == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1606 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1607 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
|
1608 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
|
1609 return; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1610 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1611 #ifdef UNIX |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1612 /* For safety we only read an undo file if the owner is equal to the |
| 5343 | 1613 * 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
|
1614 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
|
1615 && mch_stat((char *)file_name, &st_undo) >= 0 |
| 5343 | 1616 && st_orig.st_uid != st_undo.st_uid |
| 1617 && 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
|
1618 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1619 if (p_verbose > 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1620 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1621 verbose_enter(); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1622 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
|
1623 file_name); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1624 verbose_leave(); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1625 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1626 return; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1627 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1628 #endif |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1629 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1630 else |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1631 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
|
1632 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1633 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
|
1634 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1635 verbose_enter(); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1636 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
|
1637 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1638 } |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1639 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1640 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
|
1641 if (fp == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1642 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1643 if (name != NULL || p_verbose > 0) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1644 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
|
1645 goto error; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1646 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1647 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1648 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1649 * 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
|
1650 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1651 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
|
1652 || 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
|
1653 { |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1654 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
|
1655 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1656 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1657 version = get2c(fp); |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1658 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
|
1659 { |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1660 #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
|
1661 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
|
1662 { |
|
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1663 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
|
1664 file_name); |
|
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1665 goto error; |
|
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1666 } |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1667 if (prepare_crypt_read(fp) == FAIL) |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1668 { |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1669 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
|
1670 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
|
1671 } |
| 2267 | 1672 do_decrypt = TRUE; |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1673 #else |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1674 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
|
1675 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
|
1676 #endif |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1677 } |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1678 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
|
1679 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1680 EMSG2(_("E824: Incompatible undo file: %s"), file_name); |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1681 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1682 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1683 |
|
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1684 if (fread(read_hash, UNDO_HASH_SIZE, 1, fp) != 1) |
|
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1685 { |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1686 corruption_error("hash", file_name); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1687 goto error; |
|
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1688 } |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1689 line_count = (linenr_T)get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1690 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
|
1691 || 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
|
1692 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1693 if (p_verbose > 0 || name != NULL) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1694 { |
|
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1695 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
|
1696 verbose_enter(); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1697 give_warning((char_u *) |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1698 _("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
|
1699 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
|
1700 verbose_leave(); |
|
2311
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 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1703 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1704 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1705 /* Read undo data for "U" command. */ |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1706 str_len = get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1707 if (str_len < 0) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1708 goto error; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1709 if (str_len > 0) |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1710 line_ptr = read_string_decrypt(curbuf, fp, str_len); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1711 line_lnum = (linenr_T)get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1712 line_colnr = (colnr_T)get4c(fp); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1713 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
|
1714 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1715 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
|
1716 goto error; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1717 } |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1718 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1719 /* Begin general undo data */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1720 old_header_seq = get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1721 new_header_seq = get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1722 cur_header_seq = get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1723 num_head = get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1724 seq_last = get4c(fp); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1725 seq_cur = get4c(fp); |
|
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1726 seq_time = get8ctime(fp); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1727 |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1728 /* Optional header fields. */ |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1729 for (;;) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1730 { |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1731 int len = getc(fp); |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1732 int what; |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1733 |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1734 if (len == 0 || len == EOF) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1735 break; |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1736 what = getc(fp); |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1737 switch (what) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1738 { |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1739 case UF_LAST_SAVE_NR: |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1740 last_save_nr = get4c(fp); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1741 break; |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1742 default: |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1743 /* field not supported, skip */ |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1744 while (--len >= 0) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1745 (void)getc(fp); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1746 } |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1747 } |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
1748 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1749 /* 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
|
1750 * 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
|
1751 * 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
|
1752 * 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
|
1753 if (num_head > 0) |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1754 { |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1755 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
|
1756 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
|
1757 if (uhp_table == NULL) |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1758 goto error; |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1759 } |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1760 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1761 while ((c = get2c(fp)) == UF_HEADER_MAGIC) |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1762 { |
|
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1763 if (num_read_uhps >= num_head) |
|
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1764 { |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1765 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
|
1766 goto error; |
|
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1767 } |
|
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1768 |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1769 uhp = unserialize_uhp(fp, file_name); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1770 if (uhp == NULL) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1771 goto error; |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1772 uhp_table[num_read_uhps++] = uhp; |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1773 } |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1774 |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1775 if (num_read_uhps != num_head) |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1776 { |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1777 corruption_error("num_head", file_name); |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1778 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1779 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1780 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
|
1781 { |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1782 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
|
1783 goto error; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1784 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1785 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1786 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1787 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
|
1788 (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
|
1789 # 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
|
1790 #else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1791 # 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
|
1792 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1793 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1794 /* 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
|
1795 * 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
|
1796 * 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
|
1797 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
|
1798 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1799 uhp = uhp_table[i]; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1800 if (uhp == NULL) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1801 continue; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1802 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1803 if (uhp_table[j] != NULL && i != j |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1804 && 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
|
1805 { |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1806 corruption_error("duplicate uh_seq", file_name); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1807 goto error; |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1808 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1809 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1810 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
|
1811 && 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
|
1812 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1813 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
|
1814 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1815 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1816 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1817 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1818 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
|
1819 && 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
|
1820 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1821 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
|
1822 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1823 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1824 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1825 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1826 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
|
1827 && 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
|
1828 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1829 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
|
1830 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1831 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1832 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1833 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1834 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
|
1835 && 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
|
1836 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1837 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
|
1838 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
1839 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1840 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1841 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
|
1842 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1843 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
|
1844 SET_FLAG(i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1845 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1846 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
|
1847 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1848 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
|
1849 SET_FLAG(i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1850 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1851 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
|
1852 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1853 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
|
1854 SET_FLAG(i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1855 } |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1856 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1857 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1858 /* 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
|
1859 * 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
|
1860 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
|
1861 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
|
1862 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
|
1863 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
|
1864 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
|
1865 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
|
1866 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
|
1867 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
|
1868 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
|
1869 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
|
1870 curbuf->b_u_time_cur = seq_time; |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
1871 curbuf->b_u_save_nr_last = last_save_nr; |
| 2627 | 1872 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
|
1873 |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1874 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
|
1875 vim_free(uhp_table); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
1876 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1877 #ifdef U_DEBUG |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1878 for (i = 0; i < num_head; ++i) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
2230
diff
changeset
|
1879 if (uhp_table_used[i] == 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1880 EMSGN("uhp_table entry %ld not used, leaking memory", i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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2230
diff
changeset
|
1881 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
|
1882 u_check(TRUE); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1883 #endif |
|
2231
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Various improvements to undo file code to make it more robust.
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changeset
|
1884 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1885 if (name != NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1886 smsg((char_u *)_("Finished reading undo file %s"), file_name); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1887 goto theend; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1888 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1889 error: |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
1890 vim_free(line_ptr); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
1891 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
|
1892 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
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parents:
2289
diff
changeset
|
1893 for (i = 0; i < num_read_uhps; i++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
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parents:
2289
diff
changeset
|
1894 if (uhp_table[i] != NULL) |
|
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
1895 u_free_uhp(uhp_table[i]); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1896 vim_free(uhp_table); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1897 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1898 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
1899 theend: |
| 2267 | 1900 #ifdef FEAT_CRYPT |
| 1901 if (do_decrypt) | |
| 1902 crypt_pop_state(); | |
| 1903 #endif | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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changeset
|
1904 if (fp != NULL) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
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parents:
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diff
changeset
|
1905 fclose(fp); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
2210
diff
changeset
|
1906 if (file_name != name) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1907 vim_free(file_name); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1908 return; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1909 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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changeset
|
1910 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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changeset
|
1911 #endif /* FEAT_PERSISTENT_UNDO */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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diff
changeset
|
1912 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
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parents:
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diff
changeset
|
1913 |
| 7 | 1914 /* |
| 1915 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible). | |
| 1916 * If 'cpoptions' does not contain 'u': Always undo. | |
| 1917 */ | |
| 1918 void | |
| 1919 u_undo(count) | |
| 1920 int count; | |
| 1921 { | |
| 1922 /* | |
| 1923 * If we get an undo command while executing a macro, we behave like the | |
| 1924 * original vi. If this happens twice in one macro the result will not | |
| 1925 * be compatible. | |
| 1926 */ | |
| 1927 if (curbuf->b_u_synced == FALSE) | |
| 1928 { | |
| 825 | 1929 u_sync(TRUE); |
| 7 | 1930 count = 1; |
| 1931 } | |
| 1932 | |
| 1933 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
| 1934 undo_undoes = TRUE; | |
| 1935 else | |
| 1936 undo_undoes = !undo_undoes; | |
| 1937 u_doit(count); | |
| 1938 } | |
| 1939 | |
| 1940 /* | |
| 1941 * If 'cpoptions' contains 'u': Repeat the previous undo or redo. | |
| 1942 * If 'cpoptions' does not contain 'u': Always redo. | |
| 1943 */ | |
| 1944 void | |
| 1945 u_redo(count) | |
| 1946 int count; | |
| 1947 { | |
| 1948 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
| 1949 undo_undoes = FALSE; | |
| 1950 u_doit(count); | |
| 1951 } | |
| 1952 | |
| 1953 /* | |
| 1954 * Undo or redo, depending on 'undo_undoes', 'count' times. | |
| 1955 */ | |
| 1956 static void | |
| 777 | 1957 u_doit(startcount) |
| 1958 int startcount; | |
| 7 | 1959 { |
| 777 | 1960 int count = startcount; |
| 1961 | |
| 632 | 1962 if (!undo_allowed()) |
| 7 | 1963 return; |
| 1964 | |
| 1965 u_newcount = 0; | |
| 1966 u_oldcount = 0; | |
| 179 | 1967 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
| 1968 u_oldcount = -1; | |
| 7 | 1969 while (count--) |
| 1970 { | |
| 2189 | 1971 /* Do the change warning now, so that it triggers FileChangedRO when |
| 1972 * needed. This may cause the file to be reloaded, that must happen | |
| 1973 * before we do anything, because it may change curbuf->b_u_curhead | |
| 1974 * and more. */ | |
| 1975 change_warning(0); | |
| 1976 | |
| 7 | 1977 if (undo_undoes) |
| 1978 { | |
| 1979 if (curbuf->b_u_curhead == NULL) /* first undo */ | |
| 1980 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
| 5446 | 1981 else if (get_undolevel() > 0) /* multi level undo */ |
| 7 | 1982 /* get next undo */ |
|
2242
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Don't use pointers to store numbers, use a union.
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parents:
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diff
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|
1983 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr; |
| 7 | 1984 /* nothing to undo */ |
| 1985 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL) | |
| 1986 { | |
| 1987 /* stick curbuf->b_u_curhead at end */ | |
| 1988 curbuf->b_u_curhead = curbuf->b_u_oldhead; | |
| 1989 beep_flush(); | |
| 777 | 1990 if (count == startcount - 1) |
| 1991 { | |
| 1992 MSG(_("Already at oldest change")); | |
| 1993 return; | |
| 1994 } | |
| 7 | 1995 break; |
| 1996 } | |
| 1997 | |
| 777 | 1998 u_undoredo(TRUE); |
| 7 | 1999 } |
| 2000 else | |
| 2001 { | |
| 5446 | 2002 if (curbuf->b_u_curhead == NULL || get_undolevel() <= 0) |
| 7 | 2003 { |
| 2004 beep_flush(); /* nothing to redo */ | |
| 777 | 2005 if (count == startcount - 1) |
| 2006 { | |
| 2007 MSG(_("Already at newest change")); | |
| 2008 return; | |
| 2009 } | |
| 7 | 2010 break; |
| 2011 } | |
| 2012 | |
| 777 | 2013 u_undoredo(FALSE); |
| 753 | 2014 |
| 2015 /* Advance for next redo. Set "newhead" when at the end of the | |
| 2016 * redoable changes. */ | |
|
2242
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|
2017 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
| 753 | 2018 curbuf->b_u_newhead = curbuf->b_u_curhead; |
|
2242
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|
2019 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr; |
| 7 | 2020 } |
| 2021 } | |
| 798 | 2022 u_undo_end(undo_undoes, FALSE); |
| 753 | 2023 } |
| 2024 | |
| 2025 /* | |
| 2026 * Undo or redo over the timeline. | |
| 2027 * When "step" is negative go back in time, otherwise goes forward in time. | |
| 758 | 2028 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as |
| 2029 * seconds. | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2030 * When "file" is TRUE use "step" as a number of file writes. |
| 772 | 2031 * When "absolute" is TRUE use "step" as the sequence number to jump to. |
| 2032 * "sec" must be FALSE then. | |
| 753 | 2033 */ |
| 2034 void | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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2280
diff
changeset
|
2035 undo_time(step, sec, file, absolute) |
| 758 | 2036 long step; |
| 2037 int sec; | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
2038 int file; |
| 772 | 2039 int absolute; |
| 753 | 2040 { |
| 2041 long target; | |
| 2042 long closest; | |
| 758 | 2043 long closest_start; |
| 2044 long closest_seq = 0; | |
| 2045 long val; | |
| 753 | 2046 u_header_T *uhp; |
| 2047 u_header_T *last; | |
| 2048 int mark; | |
| 2049 int nomark; | |
| 2050 int round; | |
| 758 | 2051 int dosec = sec; |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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|
2052 int dofile = file; |
| 758 | 2053 int above = FALSE; |
| 794 | 2054 int did_undo = TRUE; |
| 753 | 2055 |
| 766 | 2056 /* First make sure the current undoable change is synced. */ |
| 2057 if (curbuf->b_u_synced == FALSE) | |
| 825 | 2058 u_sync(TRUE); |
| 766 | 2059 |
| 753 | 2060 u_newcount = 0; |
| 2061 u_oldcount = 0; | |
| 179 | 2062 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
| 753 | 2063 u_oldcount = -1; |
| 2064 | |
| 777 | 2065 /* "target" is the node below which we want to be. |
| 2066 * Init "closest" to a value we can't reach. */ | |
| 772 | 2067 if (absolute) |
| 2068 { | |
| 2069 target = step; | |
| 777 | 2070 closest = -1; |
| 753 | 2071 } |
| 2072 else | |
| 2073 { | |
| 777 | 2074 /* When doing computations with time_t subtract starttime, because |
| 2075 * 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
|
2076 if (dosec) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2077 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
|
2078 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
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|
2079 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
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|
2080 if (step < 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
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|
2081 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2082 /* 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
|
2083 * 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
|
2084 * 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
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|
2085 uhp = curbuf->b_u_curhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
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|
2086 if (uhp != NULL) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
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|
2087 uhp = uhp->uh_next.ptr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2088 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2089 uhp = curbuf->b_u_newhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2090 if (uhp != NULL && uhp->uh_save_nr != 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2091 /* "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
|
2092 * there were no changes since the last write */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2093 target = curbuf->b_u_save_nr_cur + step; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2094 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2095 /* 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
|
2096 target = curbuf->b_u_save_nr_cur + step + 1; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
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|
2097 if (target <= 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2098 /* 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
|
2099 * the sequence number for that. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2100 dofile = FALSE; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2101 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2102 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2103 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2104 /* Moving forward to a newer write. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2105 target = curbuf->b_u_save_nr_cur + step; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2106 if (target > curbuf->b_u_save_nr_last) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2107 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2108 /* 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
|
2109 * the sequence number for that. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2110 target = curbuf->b_u_seq_last + 1; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2111 dofile = FALSE; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2112 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2113 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2114 } |
| 777 | 2115 else |
| 2116 target = curbuf->b_u_seq_cur + step; | |
| 2117 if (step < 0) | |
| 758 | 2118 { |
| 777 | 2119 if (target < 0) |
| 2120 target = 0; | |
| 2121 closest = -1; | |
| 758 | 2122 } |
| 2123 else | |
| 2124 { | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2125 if (dosec) |
| 798 | 2126 closest = (long)(time(NULL) - starttime + 1); |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2127 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2128 closest = curbuf->b_u_save_nr_last + 2; |
| 777 | 2129 else |
| 2130 closest = curbuf->b_u_seq_last + 2; | |
| 2131 if (target >= closest) | |
| 2132 target = closest - 1; | |
| 758 | 2133 } |
| 753 | 2134 } |
| 758 | 2135 closest_start = closest; |
| 777 | 2136 closest_seq = curbuf->b_u_seq_cur; |
| 753 | 2137 |
| 758 | 2138 /* |
| 2139 * May do this twice: | |
| 753 | 2140 * 1. Search for "target", update "closest" to the best match found. |
| 758 | 2141 * 2. If "target" not found search for "closest". |
| 2142 * | |
| 2143 * When using the closest time we use the sequence number in the second | |
| 2144 * round, because there may be several entries with the same time. | |
| 2145 */ | |
| 753 | 2146 for (round = 1; round <= 2; ++round) |
| 2147 { | |
| 2148 /* Find the path from the current state to where we want to go. The | |
| 2149 * desired state can be anywhere in the undo tree, need to go all over | |
| 2150 * it. We put "nomark" in uh_walk where we have been without success, | |
| 2151 * "mark" where it could possibly be. */ | |
| 2152 mark = ++lastmark; | |
| 2153 nomark = ++lastmark; | |
| 2154 | |
| 2155 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */ | |
| 2156 uhp = curbuf->b_u_newhead; | |
| 2157 else | |
| 2158 uhp = curbuf->b_u_curhead; | |
| 2159 | |
| 2160 while (uhp != NULL) | |
| 2161 { | |
| 2162 uhp->uh_walk = mark; | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2163 if (dosec) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2164 val = (long)(uhp->uh_time - starttime); |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2165 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2166 val = uhp->uh_save_nr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2167 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2168 val = uhp->uh_seq; |
| 753 | 2169 |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2170 if (round == 1 && !(dofile && val == 0)) |
| 758 | 2171 { |
| 2172 /* Remember the header that is closest to the target. | |
| 2173 * It must be at least in the right direction (checked with | |
| 777 | 2174 * "b_u_seq_cur"). When the timestamp is equal find the |
| 758 | 2175 * highest/lowest sequence number. */ |
| 777 | 2176 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur |
| 2177 : uhp->uh_seq > curbuf->b_u_seq_cur) | |
| 2178 && ((dosec && val == closest) | |
| 2179 ? (step < 0 | |
| 2180 ? uhp->uh_seq < closest_seq | |
| 2181 : uhp->uh_seq > closest_seq) | |
| 2182 : closest == closest_start | |
| 2183 || (val > target | |
| 2184 ? (closest > target | |
| 2185 ? val - target <= closest - target | |
| 2186 : val - target <= target - closest) | |
| 2187 : (closest > target | |
| 2188 ? target - val <= closest - target | |
| 2189 : target - val <= target - closest)))) | |
| 758 | 2190 { |
| 2191 closest = val; | |
| 2192 closest_seq = uhp->uh_seq; | |
| 2193 } | |
| 2194 } | |
| 2195 | |
| 2196 /* Quit searching when we found a match. But when searching for a | |
| 2197 * time we need to continue looking for the best uh_seq. */ | |
| 2198 if (target == val && !dosec) | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2199 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2200 target = uhp->uh_seq; |
| 758 | 2201 break; |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2202 } |
| 753 | 2203 |
| 2204 /* go down in the tree if we haven't been there */ | |
|
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2205 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
|
2206 && 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
|
2207 uhp = uhp->uh_prev.ptr; |
| 753 | 2208 |
| 2209 /* 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
|
2210 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
|
2211 && 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
|
2212 && 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
|
2213 uhp = uhp->uh_alt_next.ptr; |
| 753 | 2214 |
| 2215 /* go up in the tree if we haven't been there and we are at the | |
| 2216 * 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
|
2217 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
|
2218 && 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
|
2219 && uhp->uh_next.ptr->uh_walk != mark) |
| 798 | 2220 { |
| 2221 /* If still at the start we don't go through this change. */ | |
| 2222 if (uhp == curbuf->b_u_curhead) | |
| 2223 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
|
2224 uhp = uhp->uh_next.ptr; |
| 798 | 2225 } |
| 753 | 2226 |
| 2227 else | |
| 2228 { | |
| 2229 /* need to backtrack; mark this node as useless */ | |
| 2230 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
|
2231 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
|
2232 uhp = uhp->uh_alt_prev.ptr; |
| 753 | 2233 else |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2234 uhp = uhp->uh_next.ptr; |
| 753 | 2235 } |
| 2236 } | |
| 2237 | |
| 2238 if (uhp != NULL) /* found it */ | |
| 2239 break; | |
| 772 | 2240 |
| 2241 if (absolute) | |
| 2242 { | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2243 EMSGN(_("E830: Undo number %ld not found"), step); |
| 772 | 2244 return; |
| 2245 } | |
| 2246 | |
| 758 | 2247 if (closest == closest_start) |
| 753 | 2248 { |
| 758 | 2249 if (step < 0) |
| 2250 MSG(_("Already at oldest change")); | |
| 2251 else | |
| 2252 MSG(_("Already at newest change")); | |
| 753 | 2253 return; |
| 2254 } | |
| 2255 | |
| 758 | 2256 target = closest_seq; |
| 2257 dosec = FALSE; | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2258 dofile = FALSE; |
| 758 | 2259 if (step < 0) |
| 2260 above = TRUE; /* stop above the header */ | |
| 753 | 2261 } |
| 2262 | |
| 2263 /* If we found it: Follow the path to go to where we want to be. */ | |
| 2264 if (uhp != NULL) | |
| 2265 { | |
| 2266 /* | |
| 2267 * First go up the tree as much as needed. | |
| 2268 */ | |
| 2189 | 2269 while (!got_int) |
| 753 | 2270 { |
| 2189 | 2271 /* Do the change warning now, for the same reason as above. */ |
| 2272 change_warning(0); | |
| 2273 | |
| 753 | 2274 uhp = curbuf->b_u_curhead; |
| 2275 if (uhp == NULL) | |
| 2276 uhp = curbuf->b_u_newhead; | |
| 2277 else | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2278 uhp = uhp->uh_next.ptr; |
| 777 | 2279 if (uhp == NULL || uhp->uh_walk != mark |
| 2280 || (uhp->uh_seq == target && !above)) | |
| 753 | 2281 break; |
| 2282 curbuf->b_u_curhead = uhp; | |
| 777 | 2283 u_undoredo(TRUE); |
| 753 | 2284 uhp->uh_walk = nomark; /* don't go back down here */ |
| 2285 } | |
| 2286 | |
| 2287 /* | |
| 758 | 2288 * And now go down the tree (redo), branching off where needed. |
| 753 | 2289 */ |
| 2189 | 2290 while (!got_int) |
| 753 | 2291 { |
| 2189 | 2292 /* Do the change warning now, for the same reason as above. */ |
| 2293 change_warning(0); | |
| 2294 | |
| 2295 uhp = curbuf->b_u_curhead; | |
| 2296 if (uhp == NULL) | |
| 2297 break; | |
| 2298 | |
| 1056 | 2299 /* 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
|
2300 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
|
2301 && 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
|
2302 uhp = uhp->uh_alt_prev.ptr; |
| 1056 | 2303 |
| 753 | 2304 /* Find the last branch with a mark, that's the one. */ |
| 2305 last = uhp; | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2306 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
|
2307 && 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
|
2308 last = last->uh_alt_next.ptr; |
| 753 | 2309 if (last != uhp) |
| 2310 { | |
| 2311 /* Make the used branch the first entry in the list of | |
| 2312 * 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
|
2313 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
|
2314 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
|
2315 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
|
2316 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
|
2317 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
|
2318 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
|
2319 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
|
2320 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
|
2321 uhp->uh_alt_prev.ptr = last; |
| 753 | 2322 |
| 2181 | 2323 if (curbuf->b_u_oldhead == uhp) |
| 2324 curbuf->b_u_oldhead = last; | |
| 753 | 2325 uhp = last; |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2326 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
|
2327 uhp->uh_next.ptr->uh_prev.ptr = uhp; |
| 753 | 2328 } |
| 758 | 2329 curbuf->b_u_curhead = uhp; |
| 753 | 2330 |
| 2331 if (uhp->uh_walk != mark) | |
| 2332 break; /* must have reached the target */ | |
| 2333 | |
| 758 | 2334 /* Stop when going backwards in time and didn't find the exact |
| 2335 * header we were looking for. */ | |
| 2336 if (uhp->uh_seq == target && above) | |
| 798 | 2337 { |
| 2338 curbuf->b_u_seq_cur = target - 1; | |
| 758 | 2339 break; |
| 798 | 2340 } |
| 758 | 2341 |
| 777 | 2342 u_undoredo(FALSE); |
| 753 | 2343 |
| 2344 /* Advance "curhead" to below the header we last used. If it | |
| 2345 * 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
|
2346 if (uhp->uh_prev.ptr == NULL) |
| 753 | 2347 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
|
2348 curbuf->b_u_curhead = uhp->uh_prev.ptr; |
| 794 | 2349 did_undo = FALSE; |
| 753 | 2350 |
| 2351 if (uhp->uh_seq == target) /* found it! */ | |
| 2352 break; | |
| 2353 | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2354 uhp = uhp->uh_prev.ptr; |
| 753 | 2355 if (uhp == NULL || uhp->uh_walk != mark) |
| 2356 { | |
| 777 | 2357 /* Need to redo more but can't find it... */ |
| 753 | 2358 EMSG2(_(e_intern2), "undo_time()"); |
| 2359 break; | |
| 2360 } | |
| 2361 } | |
| 2362 } | |
| 798 | 2363 u_undo_end(did_undo, absolute); |
| 7 | 2364 } |
| 2365 | |
| 2366 /* | |
| 2367 * u_undoredo: common code for undo and redo | |
| 2368 * | |
| 2369 * The lines in the file are replaced by the lines in the entry list at | |
| 2370 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry | |
| 2371 * list for the next undo/redo. | |
| 777 | 2372 * |
| 2373 * When "undo" is TRUE we go up in the tree, when FALSE we go down. | |
| 7 | 2374 */ |
| 2375 static void | |
| 777 | 2376 u_undoredo(undo) |
| 2377 int undo; | |
| 7 | 2378 { |
| 2379 char_u **newarray = NULL; | |
| 2380 linenr_T oldsize; | |
| 2381 linenr_T newsize; | |
| 2382 linenr_T top, bot; | |
| 2383 linenr_T lnum; | |
| 2384 linenr_T newlnum = MAXLNUM; | |
| 2385 long i; | |
| 2386 u_entry_T *uep, *nuep; | |
| 2387 u_entry_T *newlist = NULL; | |
| 2388 int old_flags; | |
| 2389 int new_flags; | |
| 2390 pos_T namedm[NMARKS]; | |
| 692 | 2391 visualinfo_T visualinfo; |
| 7 | 2392 int empty_buffer; /* buffer became empty */ |
| 758 | 2393 u_header_T *curhead = curbuf->b_u_curhead; |
| 7 | 2394 |
| 2189 | 2395 #ifdef FEAT_AUTOCMD |
| 2396 /* Don't want autocommands using the undo structures here, they are | |
| 2397 * invalid till the end. */ | |
| 2398 block_autocmds(); | |
| 2399 #endif | |
| 2400 | |
| 1415 | 2401 #ifdef U_DEBUG |
| 2402 u_check(FALSE); | |
| 2403 #endif | |
| 758 | 2404 old_flags = curhead->uh_flags; |
| 7 | 2405 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) + |
| 2406 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
| 2407 setpcmark(); | |
| 2408 | |
| 2409 /* | |
| 2410 * save marks before undo/redo | |
| 2411 */ | |
| 2412 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); | |
| 692 | 2413 visualinfo = curbuf->b_visual; |
| 7 | 2414 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count; |
| 2415 curbuf->b_op_start.col = 0; | |
| 2416 curbuf->b_op_end.lnum = 0; | |
| 2417 curbuf->b_op_end.col = 0; | |
| 2418 | |
| 758 | 2419 for (uep = curhead->uh_entry; uep != NULL; uep = nuep) |
| 7 | 2420 { |
| 2421 top = uep->ue_top; | |
| 2422 bot = uep->ue_bot; | |
| 2423 if (bot == 0) | |
| 2424 bot = curbuf->b_ml.ml_line_count + 1; | |
| 2425 if (top > curbuf->b_ml.ml_line_count || top >= bot | |
| 2426 || bot > curbuf->b_ml.ml_line_count + 1) | |
| 2427 { | |
| 2189 | 2428 #ifdef FEAT_AUTOCMD |
| 2429 unblock_autocmds(); | |
| 2430 #endif | |
| 7 | 2431 EMSG(_("E438: u_undo: line numbers wrong")); |
| 2432 changed(); /* don't want UNCHANGED now */ | |
| 2433 return; | |
| 2434 } | |
| 2435 | |
| 2436 oldsize = bot - top - 1; /* number of lines before undo */ | |
| 2437 newsize = uep->ue_size; /* number of lines after undo */ | |
| 2438 | |
| 2439 if (top < newlnum) | |
| 2440 { | |
| 2441 /* If the saved cursor is somewhere in this undo block, move it to | |
| 2442 * the remembered position. Makes "gwap" put the cursor back | |
| 2443 * where it was. */ | |
| 758 | 2444 lnum = curhead->uh_cursor.lnum; |
| 7 | 2445 if (lnum >= top && lnum <= top + newsize + 1) |
| 2446 { | |
| 758 | 2447 curwin->w_cursor = curhead->uh_cursor; |
| 7 | 2448 newlnum = curwin->w_cursor.lnum - 1; |
| 2449 } | |
| 2450 else | |
| 2451 { | |
| 2452 /* Use the first line that actually changed. Avoids that | |
| 2453 * undoing auto-formatting puts the cursor in the previous | |
| 2454 * line. */ | |
| 2455 for (i = 0; i < newsize && i < oldsize; ++i) | |
| 2456 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0) | |
| 2457 break; | |
| 2458 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL) | |
| 2459 { | |
| 2460 newlnum = top; | |
| 2461 curwin->w_cursor.lnum = newlnum + 1; | |
| 2462 } | |
| 2463 else if (i < newsize) | |
| 2464 { | |
| 2465 newlnum = top + i; | |
| 2466 curwin->w_cursor.lnum = newlnum + 1; | |
| 2467 } | |
| 2468 } | |
| 2469 } | |
| 2470 | |
| 2471 empty_buffer = FALSE; | |
| 2472 | |
| 2473 /* delete the lines between top and bot and save them in newarray */ | |
| 168 | 2474 if (oldsize > 0) |
| 7 | 2475 { |
| 168 | 2476 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
|
2477 sizeof(char_u *) * oldsize)) == NULL) |
| 7 | 2478 { |
| 2479 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize)); | |
| 2480 /* | |
| 2481 * We have messed up the entry list, repair is impossible. | |
| 2482 * we have to free the rest of the list. | |
| 2483 */ | |
| 2484 while (uep != NULL) | |
| 2485 { | |
| 2486 nuep = uep->ue_next; | |
| 2487 u_freeentry(uep, uep->ue_size); | |
| 2488 uep = nuep; | |
| 2489 } | |
| 2490 break; | |
| 2491 } | |
| 2492 /* delete backwards, it goes faster in most cases */ | |
| 2493 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum) | |
| 2494 { | |
| 2495 /* what can we do when we run out of memory? */ | |
| 2496 if ((newarray[i] = u_save_line(lnum)) == NULL) | |
| 2497 do_outofmem_msg((long_u)0); | |
| 2498 /* remember we deleted the last line in the buffer, and a | |
| 2499 * dummy empty line will be inserted */ | |
| 2500 if (curbuf->b_ml.ml_line_count == 1) | |
| 2501 empty_buffer = TRUE; | |
| 2502 ml_delete(lnum, FALSE); | |
| 2503 } | |
| 2504 } | |
| 414 | 2505 else |
| 2506 newarray = NULL; | |
| 7 | 2507 |
| 2508 /* insert the lines in u_array between top and bot */ | |
| 2509 if (newsize) | |
| 2510 { | |
| 2511 for (lnum = top, i = 0; i < newsize; ++i, ++lnum) | |
| 2512 { | |
| 2513 /* | |
| 2514 * If the file is empty, there is an empty line 1 that we | |
| 2515 * should get rid of, by replacing it with the new line | |
| 2516 */ | |
| 2517 if (empty_buffer && lnum == 0) | |
| 2518 ml_replace((linenr_T)1, uep->ue_array[i], TRUE); | |
| 2519 else | |
| 2520 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE); | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2521 vim_free(uep->ue_array[i]); |
| 7 | 2522 } |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2523 vim_free((char_u *)uep->ue_array); |
| 7 | 2524 } |
| 2525 | |
| 2526 /* adjust marks */ | |
| 2527 if (oldsize != newsize) | |
| 2528 { | |
| 2529 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM, | |
| 2530 (long)newsize - (long)oldsize); | |
| 2531 if (curbuf->b_op_start.lnum > top + oldsize) | |
| 2532 curbuf->b_op_start.lnum += newsize - oldsize; | |
| 2533 if (curbuf->b_op_end.lnum > top + oldsize) | |
| 2534 curbuf->b_op_end.lnum += newsize - oldsize; | |
| 2535 } | |
| 2536 | |
| 2537 changed_lines(top + 1, 0, bot, newsize - oldsize); | |
| 2538 | |
| 2539 /* set '[ and '] mark */ | |
| 2540 if (top + 1 < curbuf->b_op_start.lnum) | |
| 2541 curbuf->b_op_start.lnum = top + 1; | |
| 2542 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) | |
| 2543 curbuf->b_op_end.lnum = top + 1; | |
| 2544 else if (top + newsize > curbuf->b_op_end.lnum) | |
| 2545 curbuf->b_op_end.lnum = top + newsize; | |
| 2546 | |
| 2547 u_newcount += newsize; | |
| 2548 u_oldcount += oldsize; | |
| 2549 uep->ue_size = oldsize; | |
| 2550 uep->ue_array = newarray; | |
| 2551 uep->ue_bot = top + newsize + 1; | |
| 2552 | |
| 2553 /* | |
| 2554 * insert this entry in front of the new entry list | |
| 2555 */ | |
| 2556 nuep = uep->ue_next; | |
| 2557 uep->ue_next = newlist; | |
| 2558 newlist = uep; | |
| 2559 } | |
| 2560 | |
| 758 | 2561 curhead->uh_entry = newlist; |
| 2562 curhead->uh_flags = new_flags; | |
| 7 | 2563 if ((old_flags & UH_EMPTYBUF) && bufempty()) |
| 2564 curbuf->b_ml.ml_flags |= ML_EMPTY; | |
| 2565 if (old_flags & UH_CHANGED) | |
| 2566 changed(); | |
| 2567 else | |
| 33 | 2568 #ifdef FEAT_NETBEANS_INTG |
| 2569 /* per netbeans undo rules, keep it as modified */ | |
| 2570 if (!isNetbeansModified(curbuf)) | |
| 2571 #endif | |
| 7 | 2572 unchanged(curbuf, FALSE); |
| 2573 | |
| 2574 /* | |
| 2575 * restore marks from before undo/redo | |
| 2576 */ | |
| 2577 for (i = 0; i < NMARKS; ++i) | |
| 758 | 2578 if (curhead->uh_namedm[i].lnum != 0) |
| 7 | 2579 { |
| 758 | 2580 curbuf->b_namedm[i] = curhead->uh_namedm[i]; |
| 2581 curhead->uh_namedm[i] = namedm[i]; | |
| 7 | 2582 } |
| 758 | 2583 if (curhead->uh_visual.vi_start.lnum != 0) |
| 692 | 2584 { |
| 758 | 2585 curbuf->b_visual = curhead->uh_visual; |
| 2586 curhead->uh_visual = visualinfo; | |
| 692 | 2587 } |
| 7 | 2588 |
| 2589 /* | |
| 2590 * If the cursor is only off by one line, put it at the same position as | |
| 2591 * before starting the change (for the "o" command). | |
| 2592 * Otherwise the cursor should go to the first undone line. | |
| 2593 */ | |
| 758 | 2594 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum |
| 7 | 2595 && curwin->w_cursor.lnum > 1) |
| 2596 --curwin->w_cursor.lnum; | |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2597 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count) |
| 7 | 2598 { |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2599 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum) |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2600 { |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2601 curwin->w_cursor.col = curhead->uh_cursor.col; |
| 7 | 2602 #ifdef FEAT_VIRTUALEDIT |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2603 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
|
2604 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
|
2605 else |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
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|
2606 curwin->w_cursor.coladd = 0; |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
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|
2607 #endif |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
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|
2608 } |
| 7 | 2609 else |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
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|
2610 beginline(BL_SOL | BL_FIX); |
| 7 | 2611 } |
| 2612 else | |
| 2613 { | |
| 2614 /* We get here with the current cursor line being past the end (eg | |
| 2615 * after adding lines at the end of the file, and then undoing it). | |
| 2616 * check_cursor() will move the cursor to the last line. Move it to | |
| 2617 * the first column here. */ | |
| 2618 curwin->w_cursor.col = 0; | |
| 2619 #ifdef FEAT_VIRTUALEDIT | |
| 2620 curwin->w_cursor.coladd = 0; | |
| 2621 #endif | |
| 2622 } | |
| 2623 | |
| 2624 /* Make sure the cursor is on an existing line and column. */ | |
| 2625 check_cursor(); | |
| 758 | 2626 |
| 2627 /* Remember where we are for "g-" and ":earlier 10s". */ | |
| 2628 curbuf->b_u_seq_cur = curhead->uh_seq; | |
| 777 | 2629 if (undo) |
| 2630 /* We are below the previous undo. However, to make ":earlier 1s" | |
| 2631 * work we compute this as being just above the just undone change. */ | |
| 2632 --curbuf->b_u_seq_cur; | |
| 2633 | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2634 /* Remember where we are for ":earlier 1f" and ":later 1f". */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
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|
2635 if (curhead->uh_save_nr != 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2636 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2637 if (undo) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2638 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
|
2639 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2640 curbuf->b_u_save_nr_cur = curhead->uh_save_nr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2641 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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diff
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|
2642 |
| 777 | 2643 /* The timestamp can be the same for multiple changes, just use the one of |
| 2644 * the undone/redone change. */ | |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
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|
2645 curbuf->b_u_time_cur = curhead->uh_time; |
| 2189 | 2646 |
| 2647 #ifdef FEAT_AUTOCMD | |
| 2648 unblock_autocmds(); | |
| 2649 #endif | |
| 1415 | 2650 #ifdef U_DEBUG |
| 2651 u_check(FALSE); | |
| 2652 #endif | |
| 7 | 2653 } |
| 2654 | |
| 2655 /* | |
| 2656 * If we deleted or added lines, report the number of less/more lines. | |
| 2657 * Otherwise, report the number of changes (this may be incorrect | |
| 2658 * in some cases, but it's better than nothing). | |
| 2659 */ | |
| 2660 static void | |
| 798 | 2661 u_undo_end(did_undo, absolute) |
| 794 | 2662 int did_undo; /* just did an undo */ |
| 798 | 2663 int absolute; /* used ":undo N" */ |
| 7 | 2664 { |
| 944 | 2665 char *msgstr; |
| 772 | 2666 u_header_T *uhp; |
| 2667 char_u msgbuf[80]; | |
| 753 | 2668 |
| 7 | 2669 #ifdef FEAT_FOLDING |
| 2670 if ((fdo_flags & FDO_UNDO) && KeyTyped) | |
| 2671 foldOpenCursor(); | |
| 2672 #endif | |
| 753 | 2673 |
| 2674 if (global_busy /* no messages now, wait until global is finished */ | |
| 2675 || !messaging()) /* 'lazyredraw' set, don't do messages now */ | |
| 2676 return; | |
| 2677 | |
| 2678 if (curbuf->b_ml.ml_flags & ML_EMPTY) | |
| 2679 --u_newcount; | |
| 2680 | |
| 2681 u_oldcount -= u_newcount; | |
| 2682 if (u_oldcount == -1) | |
| 944 | 2683 msgstr = N_("more line"); |
| 753 | 2684 else if (u_oldcount < 0) |
| 944 | 2685 msgstr = N_("more lines"); |
| 753 | 2686 else if (u_oldcount == 1) |
| 944 | 2687 msgstr = N_("line less"); |
| 753 | 2688 else if (u_oldcount > 1) |
| 944 | 2689 msgstr = N_("fewer lines"); |
| 753 | 2690 else |
| 2691 { | |
| 2692 u_oldcount = u_newcount; | |
| 2693 if (u_newcount == 1) | |
| 944 | 2694 msgstr = N_("change"); |
| 753 | 2695 else |
| 944 | 2696 msgstr = N_("changes"); |
| 753 | 2697 } |
| 2698 | |
| 772 | 2699 if (curbuf->b_u_curhead != NULL) |
| 794 | 2700 { |
| 798 | 2701 /* For ":undo N" we prefer a "after #N" message. */ |
|
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2702 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL) |
| 798 | 2703 { |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2704 uhp = curbuf->b_u_curhead->uh_next.ptr; |
| 798 | 2705 did_undo = FALSE; |
| 2706 } | |
| 2707 else if (did_undo) | |
| 794 | 2708 uhp = curbuf->b_u_curhead; |
| 2709 else | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2710 uhp = curbuf->b_u_curhead->uh_next.ptr; |
| 794 | 2711 } |
| 753 | 2712 else |
| 772 | 2713 uhp = curbuf->b_u_newhead; |
| 753 | 2714 |
| 772 | 2715 if (uhp == NULL) |
| 2716 *msgbuf = NUL; | |
| 2717 else | |
| 2718 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time); | |
| 2719 | |
|
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2720 #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
|
2721 { |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2722 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
|
2723 |
|
a888ed7ba375
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Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2724 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
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|
2725 { |
|
2378
85b7dc8da5eb
Add the 'concealcursor' option to decide when the cursor line is to be
Bram Moolenaar <bram@vim.org>
parents:
2367
diff
changeset
|
2726 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
|
2727 redraw_win_later(wp, NOT_VALID); |
|
a888ed7ba375
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Bram Moolenaar <bram@vim.org>
parents:
2281
diff
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|
2728 } |
|
a888ed7ba375
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Bram Moolenaar <bram@vim.org>
parents:
2281
diff
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|
2729 } |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2730 #endif |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2731 |
| 794 | 2732 smsg((char_u *)_("%ld %s; %s #%ld %s"), |
| 777 | 2733 u_oldcount < 0 ? -u_oldcount : u_oldcount, |
| 944 | 2734 _(msgstr), |
| 794 | 2735 did_undo ? _("before") : _("after"), |
| 2736 uhp == NULL ? 0L : uhp->uh_seq, | |
| 2737 msgbuf); | |
| 7 | 2738 } |
| 2739 | |
| 2740 /* | |
| 2741 * u_sync: stop adding to the current entry list | |
| 2742 */ | |
| 2743 void | |
| 825 | 2744 u_sync(force) |
| 2745 int force; /* Also sync when no_u_sync is set. */ | |
| 7 | 2746 { |
| 825 | 2747 /* Skip it when already synced or syncing is disabled. */ |
| 2748 if (curbuf->b_u_synced || (!force && no_u_sync > 0)) | |
| 2749 return; | |
| 7 | 2750 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) |
| 2751 if (im_is_preediting()) | |
| 2752 return; /* XIM is busy, don't break an undo sequence */ | |
| 2753 #endif | |
| 5446 | 2754 if (get_undolevel() < 0) |
| 7 | 2755 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */ |
| 2756 else | |
| 2757 { | |
| 2758 u_getbot(); /* compute ue_bot of previous u_save */ | |
| 2759 curbuf->b_u_curhead = NULL; | |
| 2760 } | |
| 2761 } | |
| 2762 | |
| 2763 /* | |
| 772 | 2764 * ":undolist": List the leafs of the undo tree |
| 2765 */ | |
| 2766 void | |
| 2767 ex_undolist(eap) | |
| 2181 | 2768 exarg_T *eap UNUSED; |
| 772 | 2769 { |
| 2770 garray_T ga; | |
| 2771 u_header_T *uhp; | |
| 2772 int mark; | |
| 2773 int nomark; | |
| 2774 int changes = 1; | |
| 2775 int i; | |
| 2776 | |
| 2777 /* | |
| 2778 * 1: walk the tree to find all leafs, put the info in "ga". | |
| 2779 * 2: sort the lines | |
| 2780 * 3: display the list | |
| 2781 */ | |
| 2782 mark = ++lastmark; | |
| 2783 nomark = ++lastmark; | |
| 2784 ga_init2(&ga, (int)sizeof(char *), 20); | |
| 2785 | |
| 2786 uhp = curbuf->b_u_oldhead; | |
| 2787 while (uhp != NULL) | |
| 2788 { | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2789 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark |
| 777 | 2790 && uhp->uh_walk != mark) |
| 772 | 2791 { |
| 2792 if (ga_grow(&ga, 1) == FAIL) | |
| 2793 break; | |
| 2794 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ", | |
| 2795 uhp->uh_seq, changes); | |
| 2796 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff), | |
| 2797 uhp->uh_time); | |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2798 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
|
2799 { |
| 2627 | 2800 while (STRLEN(IObuff) < 33) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2801 STRCAT(IObuff, " "); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2802 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
|
2803 " %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
|
2804 } |
| 772 | 2805 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff); |
| 2806 } | |
| 2807 | |
| 2808 uhp->uh_walk = mark; | |
| 2809 | |
| 2810 /* go down in the tree if we haven't been there */ | |
|
2242
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changeset
|
2811 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2812 && uhp->uh_prev.ptr->uh_walk != mark) |
| 772 | 2813 { |
|
2242
bc4685345719
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Bram Moolenaar <bram@vim.org>
parents:
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changeset
|
2814 uhp = uhp->uh_prev.ptr; |
| 772 | 2815 ++changes; |
| 2816 } | |
| 2817 | |
| 2818 /* 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:
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changeset
|
2819 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
|
2820 && 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
|
2821 && 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
|
2822 uhp = uhp->uh_alt_next.ptr; |
| 772 | 2823 |
| 2824 /* go up in the tree if we haven't been there and we are at the | |
| 2825 * 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
|
2826 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
|
2827 && 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
|
2828 && uhp->uh_next.ptr->uh_walk != mark) |
| 772 | 2829 { |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2830 uhp = uhp->uh_next.ptr; |
| 772 | 2831 --changes; |
| 2832 } | |
| 2833 | |
| 2834 else | |
| 2835 { | |
| 2836 /* need to backtrack; mark this node as done */ | |
| 2837 uhp->uh_walk = nomark; | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
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|
2838 if (uhp->uh_alt_prev.ptr != NULL) |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
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2239
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changeset
|
2839 uhp = uhp->uh_alt_prev.ptr; |
| 772 | 2840 else |
| 2841 { | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2842 uhp = uhp->uh_next.ptr; |
| 772 | 2843 --changes; |
| 2844 } | |
| 2845 } | |
| 2846 } | |
| 2847 | |
| 2848 if (ga.ga_len == 0) | |
| 2849 MSG(_("Nothing to undo")); | |
| 2850 else | |
| 2851 { | |
| 2852 sort_strings((char_u **)ga.ga_data, ga.ga_len); | |
| 2853 | |
| 2854 msg_start(); | |
| 2627 | 2855 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>
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diff
changeset
|
2856 hl_attr(HLF_T)); |
| 772 | 2857 for (i = 0; i < ga.ga_len && !got_int; ++i) |
| 2858 { | |
| 2859 msg_putchar('\n'); | |
| 2860 if (got_int) | |
| 2861 break; | |
| 2862 msg_puts(((char_u **)ga.ga_data)[i]); | |
| 2863 } | |
| 2864 msg_end(); | |
| 2865 | |
| 2866 ga_clear_strings(&ga); | |
| 2867 } | |
| 2868 } | |
| 2869 | |
| 2870 /* | |
| 2871 * Put the timestamp of an undo header in "buf[buflen]" in a nice format. | |
| 2872 */ | |
| 2873 static void | |
| 2874 u_add_time(buf, buflen, tt) | |
| 2875 char_u *buf; | |
| 2876 size_t buflen; | |
| 2877 time_t tt; | |
| 2878 { | |
| 2879 #ifdef HAVE_STRFTIME | |
| 2880 struct tm *curtime; | |
| 2881 | |
| 2882 if (time(NULL) - tt >= 100) | |
| 2883 { | |
| 2884 curtime = localtime(&tt); | |
| 2627 | 2885 if (time(NULL) - tt < (60L * 60L * 12L)) |
| 2886 /* within 12 hours */ | |
| 2887 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime); | |
| 2888 else | |
| 3751 | 2889 /* longer ago */ |
| 2689 | 2890 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime); |
| 772 | 2891 } |
| 2892 else | |
| 2893 #endif | |
| 835 | 2894 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"), |
| 772 | 2895 (long)(time(NULL) - tt)); |
| 2896 } | |
| 2897 | |
| 2898 /* | |
| 697 | 2899 * ":undojoin": continue adding to the last entry list |
| 2900 */ | |
| 2901 void | |
| 2902 ex_undojoin(eap) | |
| 2181 | 2903 exarg_T *eap UNUSED; |
| 697 | 2904 { |
| 839 | 2905 if (curbuf->b_u_newhead == NULL) |
| 2906 return; /* nothing changed before */ | |
| 2907 if (curbuf->b_u_curhead != NULL) | |
| 2908 { | |
| 2909 EMSG(_("E790: undojoin is not allowed after undo")); | |
| 2910 return; | |
| 2911 } | |
| 697 | 2912 if (!curbuf->b_u_synced) |
| 2913 return; /* already unsynced */ | |
| 5446 | 2914 if (get_undolevel() < 0) |
| 697 | 2915 return; /* no entries, nothing to do */ |
| 2916 else | |
| 2917 { | |
| 2918 /* Go back to the last entry */ | |
| 2919 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
| 2920 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */ | |
| 2921 } | |
| 2922 } | |
| 2923 | |
| 2924 /* | |
|
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
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2378
diff
changeset
|
2925 * Called after writing or reloading the file and setting b_changed to FALSE. |
| 7 | 2926 * Now an undo means that the buffer is modified. |
| 2927 */ | |
| 2928 void | |
| 2929 u_unchanged(buf) | |
| 2930 buf_T *buf; | |
| 2931 { | |
| 758 | 2932 u_unch_branch(buf->b_u_oldhead); |
| 2933 buf->b_did_warn = FALSE; | |
| 2934 } | |
| 2935 | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
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|
2936 /* |
|
2482
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
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2410
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changeset
|
2937 * 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
|
2938 * 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
|
2939 */ |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2940 void |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2941 u_find_first_changed() |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2942 { |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2943 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
|
2944 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
|
2945 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
|
2946 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2947 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
|
2948 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
|
2949 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2950 /* 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
|
2951 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
|
2952 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
|
2953 return; |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2954 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2955 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
|
2956 && 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
|
2957 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
|
2958 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
|
2959 { |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2960 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
|
2961 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
|
2962 return; |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2963 } |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2964 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
|
2965 { |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2966 /* 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
|
2967 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
|
2968 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
|
2969 } |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2970 } |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2971 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
2972 /* |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2973 * 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
|
2974 * used for "u". |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2975 */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2976 void |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2977 u_update_save_nr(buf) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2978 buf_T *buf; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2979 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2980 u_header_T *uhp; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2981 |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2982 ++buf->b_u_save_nr_last; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2983 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
|
2984 uhp = buf->b_u_curhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2985 if (uhp != NULL) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2986 uhp = uhp->uh_next.ptr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2987 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2988 uhp = buf->b_u_newhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2989 if (uhp != NULL) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2990 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
|
2991 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2992 |
| 758 | 2993 static void |
| 2994 u_unch_branch(uhp) | |
| 2995 u_header_T *uhp; | |
| 2996 { | |
| 753 | 2997 u_header_T *uh; |
| 7 | 2998 |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2999 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr) |
| 758 | 3000 { |
| 7 | 3001 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
|
3002 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
|
3003 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */ |
| 758 | 3004 } |
| 7 | 3005 } |
| 3006 | |
| 3007 /* | |
| 3008 * Get pointer to last added entry. | |
| 3009 * If it's not valid, give an error message and return NULL. | |
| 3010 */ | |
| 3011 static u_entry_T * | |
| 3012 u_get_headentry() | |
| 3013 { | |
| 3014 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL) | |
| 3015 { | |
| 3016 EMSG(_("E439: undo list corrupt")); | |
| 3017 return NULL; | |
| 3018 } | |
| 3019 return curbuf->b_u_newhead->uh_entry; | |
| 3020 } | |
| 3021 | |
| 3022 /* | |
| 3023 * u_getbot(): compute the line number of the previous u_save | |
| 3024 * It is called only when b_u_synced is FALSE. | |
| 3025 */ | |
| 3026 static void | |
| 3027 u_getbot() | |
| 3028 { | |
| 3029 u_entry_T *uep; | |
| 3030 linenr_T extra; | |
| 3031 | |
| 3032 uep = u_get_headentry(); /* check for corrupt undo list */ | |
| 3033 if (uep == NULL) | |
| 3034 return; | |
| 3035 | |
| 3036 uep = curbuf->b_u_newhead->uh_getbot_entry; | |
| 3037 if (uep != NULL) | |
| 3038 { | |
| 3039 /* | |
| 3040 * the new ue_bot is computed from the number of lines that has been | |
| 3041 * inserted (0 - deleted) since calling u_save. This is equal to the | |
| 3042 * old line count subtracted from the current line count. | |
| 3043 */ | |
| 3044 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount; | |
| 3045 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra; | |
| 3046 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count) | |
| 3047 { | |
| 3048 EMSG(_("E440: undo line missing")); | |
| 3049 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will | |
| 3050 * get all the old lines back | |
| 3051 * without deleting the current | |
| 3052 * ones */ | |
| 3053 } | |
| 3054 | |
| 3055 curbuf->b_u_newhead->uh_getbot_entry = NULL; | |
| 3056 } | |
| 3057 | |
| 3058 curbuf->b_u_synced = TRUE; | |
| 3059 } | |
| 3060 | |
| 3061 /* | |
| 1415 | 3062 * Free one header "uhp" and its entry list and adjust the pointers. |
| 7 | 3063 */ |
| 3064 static void | |
| 758 | 3065 u_freeheader(buf, uhp, uhpp) |
| 168 | 3066 buf_T *buf; |
| 753 | 3067 u_header_T *uhp; |
| 3068 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
| 7 | 3069 { |
| 1415 | 3070 u_header_T *uhap; |
| 3071 | |
| 753 | 3072 /* When there is an alternate redo list free that branch completely, |
| 3073 * 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
|
3074 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
|
3075 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp); |
| 7 | 3076 |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3077 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
|
3078 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
| 7 | 3079 |
| 753 | 3080 /* 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
|
3081 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
|
3082 buf->b_u_oldhead = uhp->uh_prev.ptr; |
| 7 | 3083 else |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3084 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr; |
| 7 | 3085 |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3086 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
|
3087 buf->b_u_newhead = uhp->uh_next.ptr; |
| 7 | 3088 else |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3089 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
|
3090 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
|
3091 uhap->uh_next.ptr = uhp->uh_next.ptr; |
| 7 | 3092 |
| 753 | 3093 u_freeentries(buf, uhp, uhpp); |
| 3094 } | |
| 3095 | |
| 3096 /* | |
| 758 | 3097 * Free an alternate branch and any following alternate branches. |
| 753 | 3098 */ |
| 3099 static void | |
| 3100 u_freebranch(buf, uhp, uhpp) | |
| 3101 buf_T *buf; | |
| 3102 u_header_T *uhp; | |
| 3103 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
| 3104 { | |
| 3105 u_header_T *tofree, *next; | |
| 3106 | |
| 1440 | 3107 /* If this is the top branch we may need to use u_freeheader() to update |
| 3108 * all the pointers. */ | |
| 3109 if (uhp == buf->b_u_oldhead) | |
| 3110 { | |
| 5448 | 3111 while (buf->b_u_oldhead != NULL) |
| 3112 u_freeheader(buf, buf->b_u_oldhead, uhpp); | |
| 1440 | 3113 return; |
| 3114 } | |
| 3115 | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3116 if (uhp->uh_alt_prev.ptr != NULL) |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3117 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
| 753 | 3118 |
| 3119 next = uhp; | |
| 3120 while (next != NULL) | |
| 3121 { | |
| 3122 tofree = next; | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3123 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
|
3124 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
|
3125 next = tofree->uh_prev.ptr; |
| 753 | 3126 u_freeentries(buf, tofree, uhpp); |
| 3127 } | |
| 3128 } | |
| 3129 | |
| 3130 /* | |
| 3131 * Free all the undo entries for one header and the header itself. | |
| 3132 * This means that "uhp" is invalid when returning. | |
| 3133 */ | |
| 3134 static void | |
| 3135 u_freeentries(buf, uhp, uhpp) | |
| 3136 buf_T *buf; | |
| 3137 u_header_T *uhp; | |
| 3138 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
| 3139 { | |
| 3140 u_entry_T *uep, *nuep; | |
| 3141 | |
| 3142 /* Check for pointers to the header that become invalid now. */ | |
| 3143 if (buf->b_u_curhead == uhp) | |
| 3144 buf->b_u_curhead = NULL; | |
| 1415 | 3145 if (buf->b_u_newhead == uhp) |
| 3146 buf->b_u_newhead = NULL; /* freeing the newest entry */ | |
| 753 | 3147 if (uhpp != NULL && uhp == *uhpp) |
| 3148 *uhpp = NULL; | |
| 3149 | |
| 3150 for (uep = uhp->uh_entry; uep != NULL; uep = nuep) | |
| 3151 { | |
| 3152 nuep = uep->ue_next; | |
| 3153 u_freeentry(uep, uep->ue_size); | |
| 3154 } | |
| 3155 | |
| 1415 | 3156 #ifdef U_DEBUG |
| 3157 uhp->uh_magic = 0; | |
| 3158 #endif | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3159 vim_free((char_u *)uhp); |
| 168 | 3160 --buf->b_u_numhead; |
| 7 | 3161 } |
| 3162 | |
| 3163 /* | |
| 3164 * free entry 'uep' and 'n' lines in uep->ue_array[] | |
| 3165 */ | |
| 3166 static void | |
| 3167 u_freeentry(uep, n) | |
| 3168 u_entry_T *uep; | |
| 3169 long n; | |
| 3170 { | |
| 414 | 3171 while (n > 0) |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3172 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
|
3173 vim_free((char_u *)uep->ue_array); |
| 1415 | 3174 #ifdef U_DEBUG |
| 3175 uep->ue_magic = 0; | |
| 3176 #endif | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3177 vim_free((char_u *)uep); |
| 7 | 3178 } |
| 3179 | |
| 3180 /* | |
| 3181 * invalidate the undo buffer; called when storage has already been released | |
| 3182 */ | |
| 3183 void | |
| 3184 u_clearall(buf) | |
| 3185 buf_T *buf; | |
| 3186 { | |
| 3187 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL; | |
| 3188 buf->b_u_synced = TRUE; | |
| 3189 buf->b_u_numhead = 0; | |
| 3190 buf->b_u_line_ptr = NULL; | |
| 3191 buf->b_u_line_lnum = 0; | |
| 3192 } | |
| 3193 | |
| 3194 /* | |
| 3195 * save the line "lnum" for the "U" command | |
| 3196 */ | |
| 3197 void | |
| 3198 u_saveline(lnum) | |
| 3199 linenr_T lnum; | |
| 3200 { | |
| 3201 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */ | |
| 3202 return; | |
| 356 | 3203 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */ |
| 7 | 3204 return; |
| 3205 u_clearline(); | |
| 3206 curbuf->b_u_line_lnum = lnum; | |
| 3207 if (curwin->w_cursor.lnum == lnum) | |
| 3208 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
| 3209 else | |
| 3210 curbuf->b_u_line_colnr = 0; | |
| 3211 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL) | |
| 3212 do_outofmem_msg((long_u)0); | |
| 3213 } | |
| 3214 | |
| 3215 /* | |
| 3216 * clear the line saved for the "U" command | |
| 3217 * (this is used externally for crossing a line while in insert mode) | |
| 3218 */ | |
| 3219 void | |
| 3220 u_clearline() | |
| 3221 { | |
| 3222 if (curbuf->b_u_line_ptr != NULL) | |
| 3223 { | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3224 vim_free(curbuf->b_u_line_ptr); |
| 7 | 3225 curbuf->b_u_line_ptr = NULL; |
| 3226 curbuf->b_u_line_lnum = 0; | |
| 3227 } | |
| 3228 } | |
| 3229 | |
| 3230 /* | |
| 3231 * Implementation of the "U" command. | |
| 3232 * Differentiation from vi: "U" can be undone with the next "U". | |
| 3233 * 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
|
3234 * Careful: may trigger autocommands that reload the buffer. |
| 7 | 3235 */ |
| 3236 void | |
| 3237 u_undoline() | |
| 3238 { | |
| 3239 colnr_T t; | |
| 3240 char_u *oldp; | |
| 3241 | |
| 3242 if (undo_off) | |
| 3243 return; | |
| 3244 | |
| 1534 | 3245 if (curbuf->b_u_line_ptr == NULL |
| 3246 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count) | |
| 7 | 3247 { |
| 3248 beep_flush(); | |
| 3249 return; | |
| 3250 } | |
| 1534 | 3251 |
| 3252 /* first save the line for the 'u' command */ | |
| 7 | 3253 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>
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2378
diff
changeset
|
3254 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL) |
| 7 | 3255 return; |
| 3256 oldp = u_save_line(curbuf->b_u_line_lnum); | |
| 3257 if (oldp == NULL) | |
| 3258 { | |
| 3259 do_outofmem_msg((long_u)0); | |
| 3260 return; | |
| 3261 } | |
| 3262 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE); | |
| 3263 changed_bytes(curbuf->b_u_line_lnum, 0); | |
|
2230
290ee42cae85
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3264 vim_free(curbuf->b_u_line_ptr); |
| 7 | 3265 curbuf->b_u_line_ptr = oldp; |
| 3266 | |
| 3267 t = curbuf->b_u_line_colnr; | |
| 3268 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum) | |
| 3269 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
| 3270 curwin->w_cursor.col = t; | |
| 3271 curwin->w_cursor.lnum = curbuf->b_u_line_lnum; | |
| 1534 | 3272 check_cursor_col(); |
| 7 | 3273 } |
| 3274 | |
| 3275 /* | |
| 168 | 3276 * Free all allocated memory blocks for the buffer 'buf'. |
| 3277 */ | |
| 3278 void | |
| 3279 u_blockfree(buf) | |
| 3280 buf_T *buf; | |
| 3281 { | |
| 753 | 3282 while (buf->b_u_oldhead != NULL) |
| 758 | 3283 u_freeheader(buf, buf->b_u_oldhead, NULL); |
|
2230
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3284 vim_free(buf->b_u_line_ptr); |
| 7 | 3285 } |
| 3286 | |
| 3287 /* | |
|
2230
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Remove old and unused method to allocate memory for undo.
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diff
changeset
|
3288 * u_save_line(): allocate memory and copy line 'lnum' into it. |
|
290ee42cae85
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3289 * Returns NULL when out of memory. |
| 7 | 3290 */ |
| 3291 static char_u * | |
| 3292 u_save_line(lnum) | |
| 3293 linenr_T lnum; | |
| 3294 { | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3295 return vim_strsave(ml_get(lnum)); |
| 7 | 3296 } |
| 3297 | |
| 3298 /* | |
| 3299 * Check if the 'modified' flag is set, or 'ff' has changed (only need to | |
| 3300 * check the first character, because it can only be "dos", "unix" or "mac"). | |
| 3301 * "nofile" and "scratch" type buffers are considered to always be unchanged. | |
| 3302 */ | |
| 3303 int | |
| 3304 bufIsChanged(buf) | |
| 3305 buf_T *buf; | |
| 3306 { | |
| 3307 return | |
| 3308 #ifdef FEAT_QUICKFIX | |
| 3309 !bt_dontwrite(buf) && | |
| 3310 #endif | |
| 2685 | 3311 (buf->b_changed || file_ff_differs(buf, TRUE)); |
| 7 | 3312 } |
| 3313 | |
| 3314 int | |
| 3315 curbufIsChanged() | |
| 3316 { | |
| 3317 return | |
| 3318 #ifdef FEAT_QUICKFIX | |
| 3319 !bt_dontwrite(curbuf) && | |
| 3320 #endif | |
| 2685 | 3321 (curbuf->b_changed || file_ff_differs(curbuf, TRUE)); |
| 7 | 3322 } |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3323 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3324 #if defined(FEAT_EVAL) || defined(PROTO) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
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|
3325 /* |
|
941ff1cd317a
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diff
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|
3326 * For undotree(): Append the list of undo blocks at "first_uhp" to "list". |
|
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3327 * Recursive. |
|
941ff1cd317a
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diff
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|
3328 */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
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|
3329 void |
|
941ff1cd317a
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diff
changeset
|
3330 u_eval_tree(first_uhp, list) |
|
941ff1cd317a
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diff
changeset
|
3331 u_header_T *first_uhp; |
|
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Bram Moolenaar <bram@vim.org>
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2271
diff
changeset
|
3332 list_T *list; |
|
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3333 { |
|
941ff1cd317a
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diff
changeset
|
3334 u_header_T *uhp = first_uhp; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3335 dict_T *dict; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
2271
diff
changeset
|
3336 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3337 while (uhp != NULL) |
|
941ff1cd317a
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parents:
2271
diff
changeset
|
3338 { |
|
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3339 dict = dict_alloc(); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3340 if (dict == NULL) |
|
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diff
changeset
|
3341 return; |
|
941ff1cd317a
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diff
changeset
|
3342 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
|
3343 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
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|
3344 if (uhp == curbuf->b_u_newhead) |
|
941ff1cd317a
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diff
changeset
|
3345 dict_add_nr_str(dict, "newhead", 1, NULL); |
|
941ff1cd317a
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diff
changeset
|
3346 if (uhp == curbuf->b_u_curhead) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3347 dict_add_nr_str(dict, "curhead", 1, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3348 if (uhp->uh_save_nr > 0) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3349 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3350 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3351 if (uhp->uh_alt_next.ptr != NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3352 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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2271
diff
changeset
|
3353 list_T *alt_list = list_alloc(); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
2271
diff
changeset
|
3354 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
2271
diff
changeset
|
3355 if (alt_list != NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3356 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3357 /* Recursive call to add alternate undo tree. */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
2271
diff
changeset
|
3358 u_eval_tree(uhp->uh_alt_next.ptr, alt_list); |
|
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3359 dict_add_list(dict, "alt", alt_list); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
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diff
changeset
|
3360 } |
|
941ff1cd317a
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parents:
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diff
changeset
|
3361 } |
|
941ff1cd317a
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parents:
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diff
changeset
|
3362 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3363 list_append_dict(list, dict); |
|
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Add file save counter to undo information. Add undotree() function.
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diff
changeset
|
3364 uhp = uhp->uh_prev.ptr; |
|
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diff
changeset
|
3365 } |
|
941ff1cd317a
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diff
changeset
|
3366 } |
|
941ff1cd317a
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2271
diff
changeset
|
3367 #endif |