Mercurial > vim
annotate src/undo.c @ 7266:6ba7182fb7bd v7.4.941
commit https://github.com/vim/vim/commit/0f6562e9036f889185dff49a75c7fc5ffb28b307
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Nov 24 18:48:14 2015 +0100
patch 7.4.941
Problem: There is no way to ignore case only for tag searches.
Solution: Add the 'tagcase' option. (Gary Johnson)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Tue, 24 Nov 2015 19:00:06 +0100 |
| parents | 63b2bc619d5a |
| children | 0b6c37dd858d |
| rev | line source |
|---|---|
| 7 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 2 * | |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * undo.c: multi level undo facility | |
| 12 * | |
| 13 * The saved lines are stored in a list of lists (one for each buffer): | |
| 14 * | |
| 15 * b_u_oldhead------------------------------------------------+ | |
| 16 * | | |
| 17 * V | |
| 18 * +--------------+ +--------------+ +--------------+ | |
| 19 * b_u_newhead--->| u_header | | u_header | | u_header | | |
| 20 * | uh_next------>| uh_next------>| uh_next---->NULL | |
| 21 * NULL<--------uh_prev |<---------uh_prev |<---------uh_prev | | |
| 22 * | uh_entry | | uh_entry | | uh_entry | | |
| 23 * +--------|-----+ +--------|-----+ +--------|-----+ | |
| 24 * | | | | |
| 25 * V V V | |
| 26 * +--------------+ +--------------+ +--------------+ | |
| 27 * | u_entry | | u_entry | | u_entry | | |
| 28 * | ue_next | | ue_next | | ue_next | | |
| 29 * +--------|-----+ +--------|-----+ +--------|-----+ | |
| 30 * | | | | |
| 31 * V V V | |
| 32 * +--------------+ NULL NULL | |
| 33 * | u_entry | | |
| 34 * | ue_next | | |
| 35 * +--------|-----+ | |
| 36 * | | |
| 37 * V | |
| 38 * etc. | |
| 39 * | |
| 40 * Each u_entry list contains the information for one undo or redo. | |
| 41 * curbuf->b_u_curhead points to the header of the last undo (the next redo), | |
| 758 | 42 * or is NULL if nothing has been undone (end of the branch). |
| 7 | 43 * |
| 753 | 44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at |
| 45 * each point in the list a branch may appear for an alternate to redo. The | |
| 46 * uh_seq field is numbered sequentially to be able to find a newer or older | |
| 47 * branch. | |
| 48 * | |
| 758 | 49 * +---------------+ +---------------+ |
| 50 * b_u_oldhead --->| u_header | | u_header | | |
| 51 * | uh_alt_next ---->| uh_alt_next ----> NULL | |
| 52 * NULL <----- uh_alt_prev |<------ uh_alt_prev | | |
| 53 * | uh_prev | | uh_prev | | |
| 54 * +-----|---------+ +-----|---------+ | |
| 55 * | | | |
| 56 * V V | |
| 57 * +---------------+ +---------------+ | |
| 58 * | u_header | | u_header | | |
| 59 * | uh_alt_next | | uh_alt_next | | |
| 60 * b_u_newhead --->| uh_alt_prev | | uh_alt_prev | | |
| 61 * | uh_prev | | uh_prev | | |
| 62 * +-----|---------+ +-----|---------+ | |
| 63 * | | | |
| 64 * V V | |
| 65 * NULL +---------------+ +---------------+ | |
| 66 * | u_header | | u_header | | |
| 67 * | uh_alt_next ---->| uh_alt_next | | |
| 68 * | uh_alt_prev |<------ uh_alt_prev | | |
| 69 * | uh_prev | | uh_prev | | |
| 70 * +-----|---------+ +-----|---------+ | |
| 71 * | | | |
| 72 * etc. etc. | |
| 73 * | |
| 74 * | |
|
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75 * All data is allocated and will all be freed when the buffer is unloaded. |
| 7 | 76 */ |
| 77 | |
| 1415 | 78 /* Uncomment the next line for including the u_check() function. This warns |
| 79 * for errors in the debug information. */ | |
| 80 /* #define U_DEBUG 1 */ | |
| 81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */ | |
| 82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */ | |
| 83 | |
| 6122 | 84 /* Size of buffer used for encryption. */ |
| 85 #define CRYPT_BUF_SIZE 8192 | |
| 86 | |
| 7 | 87 #include "vim.h" |
| 88 | |
| 6122 | 89 /* Structure passed around between functions. |
| 90 * Avoids passing cryptstate_T when encryption not available. */ | |
| 91 typedef struct { | |
| 92 buf_T *bi_buf; | |
| 93 FILE *bi_fp; | |
| 94 #ifdef FEAT_CRYPT | |
| 95 cryptstate_T *bi_state; | |
| 96 char_u *bi_buffer; /* CRYPT_BUF_SIZE, NULL when not buffering */ | |
| 97 size_t bi_used; /* bytes written to/read from bi_buffer */ | |
| 98 size_t bi_avail; /* bytes available in bi_buffer */ | |
| 99 #endif | |
| 100 } bufinfo_T; | |
| 101 | |
| 102 | |
| 5446 | 103 static long get_undolevel __ARGS((void)); |
| 758 | 104 static void u_unch_branch __ARGS((u_header_T *uhp)); |
| 7 | 105 static u_entry_T *u_get_headentry __ARGS((void)); |
| 106 static void u_getbot __ARGS((void)); | |
| 107 static void u_doit __ARGS((int count)); | |
| 777 | 108 static void u_undoredo __ARGS((int undo)); |
| 798 | 109 static void u_undo_end __ARGS((int did_undo, int absolute)); |
| 772 | 110 static void u_add_time __ARGS((char_u *buf, size_t buflen, time_t tt)); |
| 758 | 111 static void u_freeheader __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
| 753 | 112 static void u_freebranch __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); |
| 113 static void u_freeentries __ARGS((buf_T *buf, u_header_T *uhp, u_header_T **uhpp)); | |
| 7 | 114 static void u_freeentry __ARGS((u_entry_T *, long)); |
|
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115 #ifdef FEAT_PERSISTENT_UNDO |
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116 static void corruption_error __ARGS((char *mesg, char_u *file_name)); |
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117 static void u_free_uhp __ARGS((u_header_T *uhp)); |
| 6122 | 118 static int undo_write __ARGS((bufinfo_T *bi, char_u *ptr, size_t len)); |
| 119 static int undo_flush __ARGS((bufinfo_T *bi)); | |
| 120 static int fwrite_crypt __ARGS((bufinfo_T *bi, char_u *ptr, size_t len)); | |
| 121 static int undo_write_bytes __ARGS((bufinfo_T *bi, long_u nr, int len)); | |
| 122 static void put_header_ptr __ARGS((bufinfo_T *bi, u_header_T *uhp)); | |
| 123 static int undo_read_4c __ARGS((bufinfo_T *bi)); | |
| 124 static int undo_read_2c __ARGS((bufinfo_T *bi)); | |
| 125 static int undo_read_byte __ARGS((bufinfo_T *bi)); | |
| 126 static time_t undo_read_time __ARGS((bufinfo_T *bi)); | |
| 127 static int undo_read __ARGS((bufinfo_T *bi, char_u *buffer, size_t size)); | |
| 128 static char_u *read_string_decrypt __ARGS((bufinfo_T *bi, int len)); | |
| 129 static int serialize_header __ARGS((bufinfo_T *bi, char_u *hash)); | |
| 130 static int serialize_uhp __ARGS((bufinfo_T *bi, u_header_T *uhp)); | |
| 131 static u_header_T *unserialize_uhp __ARGS((bufinfo_T *bi, char_u *file_name)); | |
| 132 static int serialize_uep __ARGS((bufinfo_T *bi, u_entry_T *uep)); | |
| 133 static u_entry_T *unserialize_uep __ARGS((bufinfo_T *bi, int *error, char_u *file_name)); | |
| 134 static void serialize_pos __ARGS((bufinfo_T *bi, pos_T pos)); | |
| 135 static void unserialize_pos __ARGS((bufinfo_T *bi, pos_T *pos)); | |
| 136 static void serialize_visualinfo __ARGS((bufinfo_T *bi, visualinfo_T *info)); | |
| 137 static void unserialize_visualinfo __ARGS((bufinfo_T *bi, visualinfo_T *info)); | |
| 168 | 138 #endif |
| 7 | 139 |
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140 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE) |
| 7 | 141 static char_u *u_save_line __ARGS((linenr_T)); |
| 142 | |
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143 /* used in undo_end() to report number of added and deleted lines */ |
| 7 | 144 static long u_newcount, u_oldcount; |
| 145 | |
| 146 /* | |
| 147 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember | |
| 148 * the action that "u" should do. | |
| 149 */ | |
| 150 static int undo_undoes = FALSE; | |
| 151 | |
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152 static int lastmark = 0; |
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153 |
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154 #if defined(U_DEBUG) || defined(PROTO) |
| 1415 | 155 /* |
| 156 * Check the undo structures for being valid. Print a warning when something | |
| 157 * looks wrong. | |
| 158 */ | |
| 159 static int seen_b_u_curhead; | |
| 160 static int seen_b_u_newhead; | |
| 161 static int header_count; | |
| 162 | |
| 163 static void | |
| 164 u_check_tree(u_header_T *uhp, | |
| 165 u_header_T *exp_uh_next, | |
| 166 u_header_T *exp_uh_alt_prev) | |
| 167 { | |
| 168 u_entry_T *uep; | |
| 169 | |
| 170 if (uhp == NULL) | |
| 171 return; | |
| 172 ++header_count; | |
| 173 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1) | |
| 174 { | |
| 175 EMSG("b_u_curhead found twice (looping?)"); | |
| 176 return; | |
| 177 } | |
| 178 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1) | |
| 179 { | |
| 180 EMSG("b_u_newhead found twice (looping?)"); | |
| 181 return; | |
| 182 } | |
| 183 | |
| 184 if (uhp->uh_magic != UH_MAGIC) | |
| 185 EMSG("uh_magic wrong (may be using freed memory)"); | |
| 186 else | |
| 187 { | |
| 188 /* Check pointers back are correct. */ | |
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189 if (uhp->uh_next.ptr != exp_uh_next) |
| 1415 | 190 { |
| 191 EMSG("uh_next wrong"); | |
| 192 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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193 exp_uh_next, uhp->uh_next.ptr); |
| 1415 | 194 } |
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195 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev) |
| 1415 | 196 { |
| 197 EMSG("uh_alt_prev wrong"); | |
| 198 smsg((char_u *)"expected: 0x%x, actual: 0x%x", | |
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199 exp_uh_alt_prev, uhp->uh_alt_prev.ptr); |
| 1415 | 200 } |
| 201 | |
| 202 /* Check the undo tree at this header. */ | |
| 203 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) | |
| 204 { | |
| 205 if (uep->ue_magic != UE_MAGIC) | |
| 206 { | |
| 207 EMSG("ue_magic wrong (may be using freed memory)"); | |
| 208 break; | |
| 209 } | |
| 210 } | |
| 211 | |
| 212 /* Check the next alt tree. */ | |
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213 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp); |
| 1415 | 214 |
| 215 /* Check the next header in this branch. */ | |
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216 u_check_tree(uhp->uh_prev.ptr, uhp, NULL); |
| 1415 | 217 } |
| 218 } | |
| 219 | |
| 2189 | 220 static void |
| 1415 | 221 u_check(int newhead_may_be_NULL) |
| 222 { | |
| 223 seen_b_u_newhead = 0; | |
| 224 seen_b_u_curhead = 0; | |
| 225 header_count = 0; | |
| 226 | |
| 227 u_check_tree(curbuf->b_u_oldhead, NULL, NULL); | |
| 228 | |
| 229 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL | |
| 230 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL)) | |
| 231 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead); | |
| 232 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0) | |
| 233 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead); | |
| 234 if (header_count != curbuf->b_u_numhead) | |
| 235 { | |
| 236 EMSG("b_u_numhead invalid"); | |
| 237 smsg((char_u *)"expected: %ld, actual: %ld", | |
| 238 (long)header_count, (long)curbuf->b_u_numhead); | |
| 239 } | |
| 240 } | |
| 241 #endif | |
| 242 | |
| 7 | 243 /* |
| 344 | 244 * Save the current line for both the "u" and "U" command. |
| 4303 | 245 * Careful: may trigger autocommands that reload the buffer. |
| 344 | 246 * Returns OK or FAIL. |
| 7 | 247 */ |
| 248 int | |
| 249 u_save_cursor() | |
| 250 { | |
| 251 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1), | |
| 252 (linenr_T)(curwin->w_cursor.lnum + 1))); | |
| 253 } | |
| 254 | |
| 255 /* | |
| 256 * Save the lines between "top" and "bot" for both the "u" and "U" command. | |
| 257 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1. | |
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258 * Careful: may trigger autocommands that reload the buffer. |
| 7 | 259 * Returns FAIL when lines could not be saved, OK otherwise. |
| 260 */ | |
| 261 int | |
| 262 u_save(top, bot) | |
| 263 linenr_T top, bot; | |
| 264 { | |
| 265 if (undo_off) | |
| 266 return OK; | |
| 267 | |
| 4303 | 268 if (top > curbuf->b_ml.ml_line_count |
| 269 || top >= bot | |
| 270 || bot > curbuf->b_ml.ml_line_count + 1) | |
| 7 | 271 return FALSE; /* rely on caller to do error messages */ |
| 272 | |
| 273 if (top + 2 == bot) | |
| 274 u_saveline((linenr_T)(top + 1)); | |
| 275 | |
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276 return (u_savecommon(top, bot, (linenr_T)0, FALSE)); |
| 7 | 277 } |
| 278 | |
| 279 /* | |
| 2181 | 280 * Save the line "lnum" (used by ":s" and "~" command). |
| 7 | 281 * The line is replaced, so the new bottom line is lnum + 1. |
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282 * Careful: may trigger autocommands that reload the buffer. |
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283 * Returns FAIL when lines could not be saved, OK otherwise. |
| 7 | 284 */ |
| 285 int | |
| 286 u_savesub(lnum) | |
| 287 linenr_T lnum; | |
| 288 { | |
| 289 if (undo_off) | |
| 290 return OK; | |
| 291 | |
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292 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE)); |
| 7 | 293 } |
| 294 | |
| 295 /* | |
| 2181 | 296 * A new line is inserted before line "lnum" (used by :s command). |
| 7 | 297 * The line is inserted, so the new bottom line is lnum + 1. |
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298 * Careful: may trigger autocommands that reload the buffer. |
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299 * Returns FAIL when lines could not be saved, OK otherwise. |
| 7 | 300 */ |
| 301 int | |
| 302 u_inssub(lnum) | |
| 303 linenr_T lnum; | |
| 304 { | |
| 305 if (undo_off) | |
| 306 return OK; | |
| 307 | |
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308 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE)); |
| 7 | 309 } |
| 310 | |
| 311 /* | |
| 2181 | 312 * Save the lines "lnum" - "lnum" + nlines (used by delete command). |
| 7 | 313 * The lines are deleted, so the new bottom line is lnum, unless the buffer |
| 314 * becomes empty. | |
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315 * Careful: may trigger autocommands that reload the buffer. |
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316 * Returns FAIL when lines could not be saved, OK otherwise. |
| 7 | 317 */ |
| 318 int | |
| 319 u_savedel(lnum, nlines) | |
| 320 linenr_T lnum; | |
| 321 long nlines; | |
| 322 { | |
| 323 if (undo_off) | |
| 324 return OK; | |
| 325 | |
| 326 return (u_savecommon(lnum - 1, lnum + nlines, | |
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327 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE)); |
| 7 | 328 } |
| 329 | |
| 632 | 330 /* |
| 331 * Return TRUE when undo is allowed. Otherwise give an error message and | |
| 332 * return FALSE. | |
| 333 */ | |
| 912 | 334 int |
| 632 | 335 undo_allowed() |
| 336 { | |
| 337 /* Don't allow changes when 'modifiable' is off. */ | |
| 338 if (!curbuf->b_p_ma) | |
| 339 { | |
| 340 EMSG(_(e_modifiable)); | |
| 341 return FALSE; | |
| 342 } | |
| 343 | |
| 344 #ifdef HAVE_SANDBOX | |
| 345 /* In the sandbox it's not allowed to change the text. */ | |
| 346 if (sandbox != 0) | |
| 347 { | |
| 348 EMSG(_(e_sandbox)); | |
| 349 return FALSE; | |
| 350 } | |
| 351 #endif | |
| 352 | |
| 353 /* Don't allow changes in the buffer while editing the cmdline. The | |
| 354 * caller of getcmdline() may get confused. */ | |
| 634 | 355 if (textlock != 0) |
| 632 | 356 { |
| 357 EMSG(_(e_secure)); | |
| 358 return FALSE; | |
| 359 } | |
| 360 | |
| 361 return TRUE; | |
| 362 } | |
| 363 | |
| 2189 | 364 /* |
| 5446 | 365 * Get the undolevle value for the current buffer. |
| 366 */ | |
| 367 static long | |
| 368 get_undolevel() | |
| 369 { | |
| 370 if (curbuf->b_p_ul == NO_LOCAL_UNDOLEVEL) | |
| 371 return p_ul; | |
| 372 return curbuf->b_p_ul; | |
| 373 } | |
| 374 | |
| 375 /* | |
| 2189 | 376 * Common code for various ways to save text before a change. |
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377 * "top" is the line above the first changed line. |
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378 * "bot" is the line below the last changed line. |
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379 * "newbot" is the new bottom line. Use zero when not known. |
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380 * "reload" is TRUE when saving for a buffer reload. |
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381 * Careful: may trigger autocommands that reload the buffer. |
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382 * Returns FAIL when lines could not be saved, OK otherwise. |
| 2189 | 383 */ |
|
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384 int |
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385 u_savecommon(top, bot, newbot, reload) |
| 7 | 386 linenr_T top, bot; |
| 387 linenr_T newbot; | |
|
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388 int reload; |
| 7 | 389 { |
| 753 | 390 linenr_T lnum; |
| 391 long i; | |
| 392 u_header_T *uhp; | |
| 393 u_header_T *old_curhead; | |
| 394 u_entry_T *uep; | |
| 395 u_entry_T *prev_uep; | |
| 396 long size; | |
| 7 | 397 |
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398 if (!reload) |
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399 { |
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400 /* When making changes is not allowed return FAIL. It's a crude way |
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401 * to make all change commands fail. */ |
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402 if (!undo_allowed()) |
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403 return FAIL; |
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404 |
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405 #ifdef FEAT_NETBEANS_INTG |
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406 /* |
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407 * Netbeans defines areas that cannot be modified. Bail out here when |
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408 * trying to change text in a guarded area. |
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409 */ |
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410 if (netbeans_active()) |
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411 { |
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412 if (netbeans_is_guarded(top, bot)) |
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413 { |
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414 EMSG(_(e_guarded)); |
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415 return FAIL; |
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416 } |
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417 if (curbuf->b_p_ro) |
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418 { |
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419 EMSG(_(e_nbreadonly)); |
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420 return FAIL; |
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421 } |
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422 } |
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423 #endif |
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424 |
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425 #ifdef FEAT_AUTOCMD |
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426 /* |
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427 * Saving text for undo means we are going to make a change. Give a |
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428 * warning for a read-only file before making the change, so that the |
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429 * FileChangedRO event can replace the buffer with a read-write version |
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430 * (e.g., obtained from a source control system). |
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431 */ |
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432 change_warning(0); |
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433 if (bot > curbuf->b_ml.ml_line_count + 1) |
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434 { |
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435 /* This happens when the FileChangedRO autocommand changes the |
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436 * file in a way it becomes shorter. */ |
| 5621 | 437 EMSG(_("E881: Line count changed unexpectedly")); |
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438 return FAIL; |
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439 } |
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440 #endif |
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|
441 } |
| 7 | 442 |
| 1415 | 443 #ifdef U_DEBUG |
| 444 u_check(FALSE); | |
| 445 #endif | |
| 7 | 446 |
| 447 size = bot - top - 1; | |
| 448 | |
| 449 /* | |
| 2189 | 450 * If curbuf->b_u_synced == TRUE make a new header. |
| 7 | 451 */ |
| 452 if (curbuf->b_u_synced) | |
| 453 { | |
| 454 #ifdef FEAT_JUMPLIST | |
| 455 /* Need to create new entry in b_changelist. */ | |
| 456 curbuf->b_new_change = TRUE; | |
| 457 #endif | |
| 458 | |
| 5446 | 459 if (get_undolevel() >= 0) |
| 753 | 460 { |
| 461 /* | |
| 462 * Make a new header entry. Do this first so that we don't mess | |
| 463 * up the undo info when out of memory. | |
| 464 */ | |
|
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465 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
| 753 | 466 if (uhp == NULL) |
| 467 goto nomem; | |
| 1415 | 468 #ifdef U_DEBUG |
| 469 uhp->uh_magic = UH_MAGIC; | |
| 470 #endif | |
| 753 | 471 } |
| 766 | 472 else |
| 473 uhp = NULL; | |
| 753 | 474 |
| 7 | 475 /* |
| 758 | 476 * If we undid more than we redid, move the entry lists before and |
| 477 * including curbuf->b_u_curhead to an alternate branch. | |
| 7 | 478 */ |
| 753 | 479 old_curhead = curbuf->b_u_curhead; |
| 480 if (old_curhead != NULL) | |
| 481 { | |
|
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482 curbuf->b_u_newhead = old_curhead->uh_next.ptr; |
| 753 | 483 curbuf->b_u_curhead = NULL; |
| 484 } | |
| 7 | 485 |
| 486 /* | |
| 487 * free headers to keep the size right | |
| 488 */ | |
| 5446 | 489 while (curbuf->b_u_numhead > get_undolevel() |
| 490 && curbuf->b_u_oldhead != NULL) | |
| 753 | 491 { |
| 758 | 492 u_header_T *uhfree = curbuf->b_u_oldhead; |
| 753 | 493 |
| 1415 | 494 if (uhfree == old_curhead) |
| 495 /* Can't reconnect the branch, delete all of it. */ | |
| 496 u_freebranch(curbuf, uhfree, &old_curhead); | |
|
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497 else if (uhfree->uh_alt_next.ptr == NULL) |
| 1415 | 498 /* There is no branch, only free one header. */ |
| 758 | 499 u_freeheader(curbuf, uhfree, &old_curhead); |
| 753 | 500 else |
| 501 { | |
| 502 /* Free the oldest alternate branch as a whole. */ | |
|
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|
503 while (uhfree->uh_alt_next.ptr != NULL) |
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504 uhfree = uhfree->uh_alt_next.ptr; |
| 758 | 505 u_freebranch(curbuf, uhfree, &old_curhead); |
| 753 | 506 } |
| 1415 | 507 #ifdef U_DEBUG |
| 508 u_check(TRUE); | |
| 509 #endif | |
| 753 | 510 } |
| 7 | 511 |
| 766 | 512 if (uhp == NULL) /* no undo at all */ |
| 7 | 513 { |
| 753 | 514 if (old_curhead != NULL) |
| 515 u_freebranch(curbuf, old_curhead, NULL); | |
| 7 | 516 curbuf->b_u_synced = FALSE; |
| 517 return OK; | |
| 518 } | |
| 519 | |
|
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520 uhp->uh_prev.ptr = NULL; |
|
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521 uhp->uh_next.ptr = curbuf->b_u_newhead; |
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522 uhp->uh_alt_next.ptr = old_curhead; |
| 753 | 523 if (old_curhead != NULL) |
| 524 { | |
|
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|
525 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr; |
|
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|
526 if (uhp->uh_alt_prev.ptr != NULL) |
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|
527 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp; |
|
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changeset
|
528 old_curhead->uh_alt_prev.ptr = uhp; |
| 753 | 529 if (curbuf->b_u_oldhead == old_curhead) |
| 530 curbuf->b_u_oldhead = uhp; | |
| 531 } | |
| 1056 | 532 else |
|
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changeset
|
533 uhp->uh_alt_prev.ptr = NULL; |
| 758 | 534 if (curbuf->b_u_newhead != NULL) |
|
2242
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diff
changeset
|
535 curbuf->b_u_newhead->uh_prev.ptr = uhp; |
| 758 | 536 |
| 777 | 537 uhp->uh_seq = ++curbuf->b_u_seq_last; |
| 538 curbuf->b_u_seq_cur = uhp->uh_seq; | |
| 758 | 539 uhp->uh_time = time(NULL); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
540 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
|
541 curbuf->b_u_time_cur = uhp->uh_time + 1; |
| 758 | 542 |
| 753 | 543 uhp->uh_walk = 0; |
| 7 | 544 uhp->uh_entry = NULL; |
| 545 uhp->uh_getbot_entry = NULL; | |
| 546 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */ | |
| 547 #ifdef FEAT_VIRTUALEDIT | |
| 548 if (virtual_active() && curwin->w_cursor.coladd > 0) | |
| 549 uhp->uh_cursor_vcol = getviscol(); | |
| 550 else | |
| 551 uhp->uh_cursor_vcol = -1; | |
| 552 #endif | |
| 553 | |
| 554 /* save changed and buffer empty flag for undo */ | |
| 555 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) + | |
| 556 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
| 557 | |
| 692 | 558 /* save named marks and Visual marks for undo */ |
| 7 | 559 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); |
| 692 | 560 uhp->uh_visual = curbuf->b_visual; |
| 561 | |
| 7 | 562 curbuf->b_u_newhead = uhp; |
| 563 if (curbuf->b_u_oldhead == NULL) | |
| 564 curbuf->b_u_oldhead = uhp; | |
| 565 ++curbuf->b_u_numhead; | |
| 566 } | |
| 567 else | |
| 568 { | |
| 5446 | 569 if (get_undolevel() < 0) /* no undo at all */ |
| 7 | 570 return OK; |
| 571 | |
| 572 /* | |
| 573 * When saving a single line, and it has been saved just before, it | |
| 574 * doesn't make sense saving it again. Saves a lot of memory when | |
| 575 * making lots of changes inside the same line. | |
| 576 * This is only possible if the previous change didn't increase or | |
| 577 * decrease the number of lines. | |
| 578 * Check the ten last changes. More doesn't make sense and takes too | |
| 579 * long. | |
| 580 */ | |
| 581 if (size == 1) | |
| 582 { | |
| 583 uep = u_get_headentry(); | |
| 584 prev_uep = NULL; | |
| 585 for (i = 0; i < 10; ++i) | |
| 586 { | |
| 587 if (uep == NULL) | |
| 588 break; | |
| 589 | |
| 590 /* If lines have been inserted/deleted we give up. | |
| 591 * Also when the line was included in a multi-line save. */ | |
| 592 if ((curbuf->b_u_newhead->uh_getbot_entry != uep | |
| 593 ? (uep->ue_top + uep->ue_size + 1 | |
| 594 != (uep->ue_bot == 0 | |
| 595 ? curbuf->b_ml.ml_line_count + 1 | |
| 596 : uep->ue_bot)) | |
| 597 : uep->ue_lcount != curbuf->b_ml.ml_line_count) | |
| 598 || (uep->ue_size > 1 | |
| 599 && top >= uep->ue_top | |
| 600 && top + 2 <= uep->ue_top + uep->ue_size + 1)) | |
| 601 break; | |
| 602 | |
| 603 /* If it's the same line we can skip saving it again. */ | |
| 604 if (uep->ue_size == 1 && uep->ue_top == top) | |
| 605 { | |
| 606 if (i > 0) | |
| 607 { | |
| 608 /* It's not the last entry: get ue_bot for the last | |
| 609 * entry now. Following deleted/inserted lines go to | |
| 610 * the re-used entry. */ | |
| 611 u_getbot(); | |
| 612 curbuf->b_u_synced = FALSE; | |
| 613 | |
| 614 /* Move the found entry to become the last entry. The | |
| 615 * order of undo/redo doesn't matter for the entries | |
| 616 * we move it over, since they don't change the line | |
| 617 * count and don't include this line. It does matter | |
| 618 * for the found entry if the line count is changed by | |
| 619 * the executed command. */ | |
| 620 prev_uep->ue_next = uep->ue_next; | |
| 621 uep->ue_next = curbuf->b_u_newhead->uh_entry; | |
| 622 curbuf->b_u_newhead->uh_entry = uep; | |
| 623 } | |
| 624 | |
| 625 /* The executed command may change the line count. */ | |
| 626 if (newbot != 0) | |
| 627 uep->ue_bot = newbot; | |
| 628 else if (bot > curbuf->b_ml.ml_line_count) | |
| 629 uep->ue_bot = 0; | |
| 630 else | |
| 631 { | |
| 632 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
| 633 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
| 634 } | |
| 635 return OK; | |
| 636 } | |
| 637 prev_uep = uep; | |
| 638 uep = uep->ue_next; | |
| 639 } | |
| 640 } | |
| 641 | |
| 642 /* find line number for ue_bot for previous u_save() */ | |
| 643 u_getbot(); | |
| 644 } | |
| 645 | |
| 646 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__) | |
| 647 /* | |
| 648 * With Amiga and MSDOS 16 bit we can't handle big undo's, because | |
| 649 * then u_alloc_line would have to allocate a block larger than 32K | |
| 650 */ | |
| 651 if (size >= 8000) | |
| 652 goto nomem; | |
| 653 #endif | |
| 654 | |
| 655 /* | |
| 656 * add lines in front of entry list | |
| 657 */ | |
|
2230
290ee42cae85
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diff
changeset
|
658 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
| 7 | 659 if (uep == NULL) |
| 660 goto nomem; | |
|
2215
cccb71c2c5c1
Fix uninit memory read in undo code. Fix uint32_t in proto file.
Bram Moolenaar <bram@vim.org>
parents:
2214
diff
changeset
|
661 vim_memset(uep, 0, sizeof(u_entry_T)); |
| 1415 | 662 #ifdef U_DEBUG |
| 663 uep->ue_magic = UE_MAGIC; | |
| 664 #endif | |
| 7 | 665 |
| 666 uep->ue_size = size; | |
| 667 uep->ue_top = top; | |
| 668 if (newbot != 0) | |
| 669 uep->ue_bot = newbot; | |
| 670 /* | |
| 671 * Use 0 for ue_bot if bot is below last line. | |
| 672 * Otherwise we have to compute ue_bot later. | |
| 673 */ | |
| 674 else if (bot > curbuf->b_ml.ml_line_count) | |
| 675 uep->ue_bot = 0; | |
| 676 else | |
| 677 { | |
| 678 uep->ue_lcount = curbuf->b_ml.ml_line_count; | |
| 679 curbuf->b_u_newhead->uh_getbot_entry = uep; | |
| 680 } | |
| 681 | |
| 168 | 682 if (size > 0) |
| 7 | 683 { |
| 168 | 684 if ((uep->ue_array = (char_u **)U_ALLOC_LINE( |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
685 sizeof(char_u *) * size)) == NULL) |
| 7 | 686 { |
| 687 u_freeentry(uep, 0L); | |
| 688 goto nomem; | |
| 689 } | |
| 690 for (i = 0, lnum = top + 1; i < size; ++i) | |
| 691 { | |
| 481 | 692 fast_breakcheck(); |
| 693 if (got_int) | |
| 694 { | |
| 695 u_freeentry(uep, i); | |
| 696 return FAIL; | |
| 697 } | |
| 7 | 698 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL) |
| 699 { | |
| 700 u_freeentry(uep, i); | |
| 701 goto nomem; | |
| 702 } | |
| 703 } | |
| 704 } | |
| 359 | 705 else |
| 706 uep->ue_array = NULL; | |
| 7 | 707 uep->ue_next = curbuf->b_u_newhead->uh_entry; |
| 708 curbuf->b_u_newhead->uh_entry = uep; | |
| 709 curbuf->b_u_synced = FALSE; | |
| 710 undo_undoes = FALSE; | |
| 711 | |
| 1415 | 712 #ifdef U_DEBUG |
| 713 u_check(FALSE); | |
| 714 #endif | |
| 7 | 715 return OK; |
| 716 | |
| 717 nomem: | |
| 718 msg_silent = 0; /* must display the prompt */ | |
| 719 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE) | |
| 720 == 'y') | |
| 721 { | |
| 722 undo_off = TRUE; /* will be reset when character typed */ | |
| 723 return OK; | |
| 724 } | |
| 725 do_outofmem_msg((long_u)0); | |
| 726 return FAIL; | |
| 727 } | |
| 728 | |
|
2266
ae2e615a7320
Fix tiny build, move functions to undo.c.
Bram Moolenaar <bram@vim.org>
parents:
2262
diff
changeset
|
729 #if defined(FEAT_PERSISTENT_UNDO) || defined(PROTO) |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
730 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
731 # define UF_START_MAGIC "Vim\237UnDo\345" /* magic at start of undofile */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
732 # define UF_START_MAGIC_LEN 9 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
733 # define UF_HEADER_MAGIC 0x5fd0 /* magic at start of header */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
734 # define UF_HEADER_END_MAGIC 0xe7aa /* magic after last header */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
735 # define UF_ENTRY_MAGIC 0xf518 /* magic at start of entry */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
736 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */ |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
737 # define UF_VERSION 2 /* 2-byte undofile version number */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
738 # define UF_VERSION_CRYPT 0x8002 /* idem, encrypted */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
739 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
740 /* extra fields for header */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
741 # define UF_LAST_SAVE_NR 1 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
742 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
743 /* extra fields for uhp */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
744 # define UHP_SAVE_NR 1 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
745 |
|
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
746 static char_u e_not_open[] = N_("E828: Cannot open undo file for writing: %s"); |
|
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
747 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
748 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
749 * Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE]. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
750 */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
751 void |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
752 u_compute_hash(hash) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
753 char_u *hash; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
754 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
755 context_sha256_T ctx; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
756 linenr_T lnum; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
757 char_u *p; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
758 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
759 sha256_start(&ctx); |
| 3194 | 760 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
761 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
762 p = ml_get(lnum); |
|
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
763 sha256_update(&ctx, p, (UINT32_T)(STRLEN(p) + 1)); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
764 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
765 sha256_finish(&ctx, hash); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
766 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
767 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
768 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
769 * Return an allocated string of the full path of the target undofile. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
770 * When "reading" is TRUE find the file to read, go over all directories in |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
771 * 'undodir'. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
772 * When "reading" is FALSE use the first name where the directory exists. |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
773 * Returns NULL when there is no place to write or no file to read. |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
774 */ |
|
2236
dc2e5ec0500d
Added the undofile() function. Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents:
2235
diff
changeset
|
775 char_u * |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
776 u_get_undo_file_name(buf_ffname, reading) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
777 char_u *buf_ffname; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
778 int reading; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
779 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
780 char_u *dirp; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
781 char_u dir_name[IOSIZE + 1]; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
782 char_u *munged_name = NULL; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
783 char_u *undo_file_name = NULL; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
784 int dir_len; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
785 char_u *p; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
786 struct stat st; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
787 char_u *ffname = buf_ffname; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
788 #ifdef HAVE_READLINK |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
789 char_u fname_buf[MAXPATHL]; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
790 #endif |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
791 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
792 if (ffname == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
793 return NULL; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
794 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
795 #ifdef HAVE_READLINK |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
796 /* Expand symlink in the file name, so that we put the undo file with the |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
797 * actual file instead of with the symlink. */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
798 if (resolve_symlink(ffname, fname_buf) == OK) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
799 ffname = fname_buf; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
800 #endif |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
801 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
802 /* Loop over 'undodir'. When reading find the first file that exists. |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
803 * When not reading use the first directory that exists or ".". */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
804 dirp = p_udir; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
805 while (*dirp != NUL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
806 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
807 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ","); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
808 if (dir_len == 1 && dir_name[0] == '.') |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
809 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
810 /* Use same directory as the ffname, |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
811 * "dir/name" -> "dir/.name.un~" */ |
|
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
812 undo_file_name = vim_strnsave(ffname, (int)(STRLEN(ffname) + 5)); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
813 if (undo_file_name == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
814 break; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
815 p = gettail(undo_file_name); |
| 5704 | 816 #ifdef VMS |
| 817 /* VMS can not handle more than one dot in the filenames | |
| 818 * use "dir/name" -> "dir/_un_name" - add _un_ | |
| 819 * at the beginning to keep the extension */ | |
| 820 mch_memmove(p + 4, p, STRLEN(p) + 1); | |
| 821 mch_memmove(p, "_un_", 4); | |
| 822 | |
| 823 #else | |
| 824 /* Use same directory as the ffname, | |
| 825 * "dir/name" -> "dir/.name.un~" */ | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
826 mch_memmove(p + 1, p, STRLEN(p) + 1); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
827 *p = '.'; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
828 STRCAT(p, ".un~"); |
| 5704 | 829 #endif |
|
2214
f8222d1f9a73
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830 } |
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|
831 else |
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|
832 { |
|
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|
833 dir_name[dir_len] = NUL; |
|
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|
834 if (mch_isdir(dir_name)) |
|
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835 { |
|
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|
836 if (munged_name == NULL) |
|
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837 { |
|
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|
838 munged_name = vim_strsave(ffname); |
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|
839 if (munged_name == NULL) |
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840 return NULL; |
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841 for (p = munged_name; *p != NUL; mb_ptr_adv(p)) |
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842 if (vim_ispathsep(*p)) |
|
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843 *p = '%'; |
|
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844 } |
|
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845 undo_file_name = concat_fnames(dir_name, munged_name, TRUE); |
|
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846 } |
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847 } |
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Included patch for persistent undo. Lots of changes and added test.
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848 |
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|
849 /* When reading check if the file exists. */ |
|
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850 if (undo_file_name != NULL && (!reading |
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Included patch for persistent undo. Lots of changes and added test.
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851 || mch_stat((char *)undo_file_name, &st) >= 0)) |
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|
852 break; |
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853 vim_free(undo_file_name); |
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854 undo_file_name = NULL; |
|
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855 } |
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856 |
|
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|
857 vim_free(munged_name); |
|
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858 return undo_file_name; |
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859 } |
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|
860 |
|
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861 static void |
|
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862 corruption_error(mesg, file_name) |
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863 char *mesg; |
|
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864 char_u *file_name; |
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865 { |
|
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866 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name); |
|
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867 } |
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868 |
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869 static void |
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870 u_free_uhp(uhp) |
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871 u_header_T *uhp; |
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872 { |
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873 u_entry_T *nuep; |
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874 u_entry_T *uep; |
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875 |
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876 uep = uhp->uh_entry; |
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877 while (uep != NULL) |
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878 { |
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879 nuep = uep->ue_next; |
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880 u_freeentry(uep, uep->ue_size); |
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881 uep = nuep; |
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882 } |
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883 vim_free(uhp); |
|
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|
884 } |
|
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|
885 |
|
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|
886 /* |
| 6122 | 887 * Write a sequence of bytes to the undo file. |
| 888 * Buffers and encrypts as needed. | |
| 889 * Returns OK or FAIL. | |
|
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|
890 */ |
| 6122 | 891 static int |
| 892 undo_write(bi, ptr, len) | |
| 893 bufinfo_T *bi; | |
|
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|
894 char_u *ptr; |
|
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|
895 size_t len; |
| 6122 | 896 { |
| 897 #ifdef FEAT_CRYPT | |
| 898 if (bi->bi_buffer != NULL) | |
| 899 { | |
| 900 size_t len_todo = len; | |
| 901 char_u *p = ptr; | |
| 902 | |
| 903 while (bi->bi_used + len_todo >= CRYPT_BUF_SIZE) | |
| 904 { | |
| 905 size_t n = CRYPT_BUF_SIZE - bi->bi_used; | |
| 906 | |
| 907 mch_memmove(bi->bi_buffer + bi->bi_used, p, n); | |
| 908 len_todo -= n; | |
| 909 p += n; | |
| 910 bi->bi_used = CRYPT_BUF_SIZE; | |
| 911 if (undo_flush(bi) == FAIL) | |
| 912 return FAIL; | |
| 913 } | |
| 914 if (len_todo > 0) | |
| 915 { | |
| 916 mch_memmove(bi->bi_buffer + bi->bi_used, p, len_todo); | |
| 917 bi->bi_used += len_todo; | |
| 918 } | |
| 919 return OK; | |
| 920 } | |
| 921 #endif | |
| 922 if (fwrite(ptr, len, (size_t)1, bi->bi_fp) != 1) | |
| 923 return FAIL; | |
| 924 return OK; | |
| 925 } | |
| 926 | |
| 927 #ifdef FEAT_CRYPT | |
| 928 static int | |
| 929 undo_flush(bi) | |
| 930 bufinfo_T *bi; | |
| 931 { | |
| 6128 | 932 if (bi->bi_buffer != NULL && bi->bi_used > 0) |
| 6122 | 933 { |
| 934 crypt_encode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_used); | |
| 935 if (fwrite(bi->bi_buffer, bi->bi_used, (size_t)1, bi->bi_fp) != 1) | |
| 936 return FAIL; | |
| 937 bi->bi_used = 0; | |
| 938 } | |
| 939 return OK; | |
| 940 } | |
| 941 #endif | |
| 942 | |
| 943 /* | |
| 944 * Write "ptr[len]" and crypt the bytes when needed. | |
| 945 * Returns OK or FAIL. | |
| 946 */ | |
| 947 static int | |
| 948 fwrite_crypt(bi, ptr, len) | |
| 949 bufinfo_T *bi; | |
| 950 char_u *ptr; | |
| 951 size_t len; | |
|
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952 { |
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|
953 #ifdef FEAT_CRYPT |
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|
954 char_u *copy; |
|
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955 char_u small_buf[100]; |
|
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|
956 size_t i; |
|
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|
957 |
| 6122 | 958 if (bi->bi_state != NULL && bi->bi_buffer == NULL) |
|
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|
959 { |
| 6122 | 960 /* crypting every piece of text separately */ |
| 961 if (len < 100) | |
| 962 copy = small_buf; /* no malloc()/free() for short strings */ | |
| 963 else | |
| 964 { | |
| 965 copy = lalloc(len, FALSE); | |
| 966 if (copy == NULL) | |
| 967 return 0; | |
| 968 } | |
| 969 crypt_encode(bi->bi_state, ptr, len, copy); | |
| 970 i = fwrite(copy, len, (size_t)1, bi->bi_fp); | |
| 971 if (copy != small_buf) | |
| 972 vim_free(copy); | |
| 973 return i == 1 ? OK : FAIL; | |
|
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|
974 } |
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|
975 #endif |
| 6122 | 976 return undo_write(bi, ptr, len); |
| 977 } | |
| 978 | |
| 979 /* | |
| 980 * Write a number, MSB first, in "len" bytes. | |
| 981 * Must match with undo_read_?c() functions. | |
| 982 * Returns OK or FAIL. | |
| 983 */ | |
| 984 static int | |
| 985 undo_write_bytes(bi, nr, len) | |
| 986 bufinfo_T *bi; | |
| 987 long_u nr; | |
| 988 int len; | |
| 989 { | |
| 990 char_u buf[8]; | |
| 991 int i; | |
| 992 int bufi = 0; | |
| 993 | |
| 994 for (i = len - 1; i >= 0; --i) | |
| 6132 | 995 buf[bufi++] = (char_u)(nr >> (i * 8)); |
| 6122 | 996 return undo_write(bi, buf, (size_t)len); |
|
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|
997 } |
|
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|
998 |
|
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Fix tiny build, move functions to undo.c.
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|
999 /* |
| 6122 | 1000 * Write the pointer to an undo header. Instead of writing the pointer itself |
| 1001 * we use the sequence number of the header. This is converted back to | |
| 1002 * pointers when reading. */ | |
| 1003 static void | |
| 1004 put_header_ptr(bi, uhp) | |
| 1005 bufinfo_T *bi; | |
| 1006 u_header_T *uhp; | |
| 1007 { | |
| 1008 undo_write_bytes(bi, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4); | |
| 1009 } | |
| 1010 | |
| 1011 static int | |
| 1012 undo_read_4c(bi) | |
| 1013 bufinfo_T *bi; | |
|
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|
1014 { |
|
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|
1015 #ifdef FEAT_CRYPT |
| 6122 | 1016 if (bi->bi_buffer != NULL) |
| 1017 { | |
| 1018 char_u buf[4]; | |
| 1019 int n; | |
| 1020 | |
| 1021 undo_read(bi, buf, (size_t)4); | |
| 6216 | 1022 n = ((unsigned)buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3]; |
| 6122 | 1023 return n; |
| 1024 } | |
|
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|
1025 #endif |
| 6122 | 1026 return get4c(bi->bi_fp); |
| 1027 } | |
| 1028 | |
| 1029 static int | |
| 1030 undo_read_2c(bi) | |
| 1031 bufinfo_T *bi; | |
| 1032 { | |
| 1033 #ifdef FEAT_CRYPT | |
| 1034 if (bi->bi_buffer != NULL) | |
| 1035 { | |
| 1036 char_u buf[2]; | |
| 1037 int n; | |
| 1038 | |
| 1039 undo_read(bi, buf, (size_t)2); | |
| 1040 n = (buf[0] << 8) + buf[1]; | |
| 1041 return n; | |
| 1042 } | |
| 1043 #endif | |
| 1044 return get2c(bi->bi_fp); | |
|
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|
1045 } |
|
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|
1046 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
1047 static int |
| 6122 | 1048 undo_read_byte(bi) |
| 1049 bufinfo_T *bi; | |
| 1050 { | |
| 1051 #ifdef FEAT_CRYPT | |
| 1052 if (bi->bi_buffer != NULL) | |
| 1053 { | |
| 1054 char_u buf[1]; | |
| 1055 | |
| 1056 undo_read(bi, buf, (size_t)1); | |
| 1057 return buf[0]; | |
| 1058 } | |
| 1059 #endif | |
| 1060 return getc(bi->bi_fp); | |
| 1061 } | |
| 1062 | |
| 1063 static time_t | |
| 1064 undo_read_time(bi) | |
| 1065 bufinfo_T *bi; | |
| 1066 { | |
| 1067 #ifdef FEAT_CRYPT | |
| 1068 if (bi->bi_buffer != NULL) | |
| 1069 { | |
| 1070 char_u buf[8]; | |
| 1071 time_t n = 0; | |
| 1072 int i; | |
| 1073 | |
| 1074 undo_read(bi, buf, (size_t)8); | |
| 1075 for (i = 0; i < 8; ++i) | |
| 1076 n = (n << 8) + buf[i]; | |
| 1077 return n; | |
| 1078 } | |
| 1079 #endif | |
| 1080 return get8ctime(bi->bi_fp); | |
| 1081 } | |
| 1082 | |
| 1083 /* | |
| 1084 * Read "buffer[size]" from the undo file. | |
| 1085 * Return OK or FAIL. | |
| 1086 */ | |
| 1087 static int | |
| 1088 undo_read(bi, buffer, size) | |
| 1089 bufinfo_T *bi; | |
| 1090 char_u *buffer; | |
| 1091 size_t size; | |
| 1092 { | |
| 1093 #ifdef FEAT_CRYPT | |
| 1094 if (bi->bi_buffer != NULL) | |
| 1095 { | |
| 6132 | 1096 int size_todo = (int)size; |
| 6122 | 1097 char_u *p = buffer; |
| 1098 | |
| 1099 while (size_todo > 0) | |
| 1100 { | |
| 1101 size_t n; | |
| 1102 | |
| 1103 if (bi->bi_used >= bi->bi_avail) | |
| 1104 { | |
| 1105 n = fread(bi->bi_buffer, 1, (size_t)CRYPT_BUF_SIZE, bi->bi_fp); | |
| 1106 if (n <= 0) | |
| 1107 { | |
| 1108 /* Error may be checked for only later. Fill with zeros, | |
| 1109 * so that the reader won't use garbage. */ | |
| 1110 vim_memset(p, 0, size_todo); | |
| 1111 return FAIL; | |
| 1112 } | |
| 1113 bi->bi_avail = n; | |
| 1114 bi->bi_used = 0; | |
| 1115 crypt_decode_inplace(bi->bi_state, bi->bi_buffer, bi->bi_avail); | |
| 1116 } | |
| 1117 n = size_todo; | |
| 1118 if (n > bi->bi_avail - bi->bi_used) | |
| 1119 n = bi->bi_avail - bi->bi_used; | |
| 1120 mch_memmove(p, bi->bi_buffer + bi->bi_used, n); | |
| 1121 bi->bi_used += n; | |
| 6132 | 1122 size_todo -= (int)n; |
| 6122 | 1123 p += n; |
| 1124 } | |
| 1125 return OK; | |
| 1126 } | |
| 1127 #endif | |
| 1128 if (fread(buffer, (size_t)size, 1, bi->bi_fp) != 1) | |
| 1129 return FAIL; | |
| 1130 return OK; | |
| 1131 } | |
| 1132 | |
| 1133 /* | |
| 1134 * Read a string of length "len" from "bi->bi_fd". | |
| 1135 * "len" can be zero to allocate an empty line. | |
| 1136 * Decrypt the bytes if needed. | |
| 1137 * Append a NUL. | |
| 1138 * Returns a pointer to allocated memory or NULL for failure. | |
| 1139 */ | |
| 1140 static char_u * | |
| 1141 read_string_decrypt(bi, len) | |
| 1142 bufinfo_T *bi; | |
| 1143 int len; | |
| 1144 { | |
| 1145 char_u *ptr = alloc((unsigned)len + 1); | |
| 1146 | |
| 1147 if (ptr != NULL) | |
| 1148 { | |
| 1149 if (len > 0 && undo_read(bi, ptr, len) == FAIL) | |
| 1150 { | |
| 1151 vim_free(ptr); | |
| 1152 return NULL; | |
| 1153 } | |
| 1154 ptr[len] = NUL; | |
| 1155 #ifdef FEAT_CRYPT | |
| 1156 if (bi->bi_state != NULL && bi->bi_buffer == NULL) | |
| 1157 crypt_decode_inplace(bi->bi_state, ptr, len); | |
| 1158 #endif | |
| 1159 } | |
| 1160 return ptr; | |
| 1161 } | |
| 1162 | |
| 1163 /* | |
| 1164 * Writes the (not encrypted) header and initializes encryption if needed. | |
| 1165 */ | |
| 1166 static int | |
| 1167 serialize_header(bi, hash) | |
| 1168 bufinfo_T *bi; | |
|
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1169 char_u *hash; |
|
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1170 { |
| 6122 | 1171 int len; |
| 1172 buf_T *buf = bi->bi_buf; | |
| 1173 FILE *fp = bi->bi_fp; | |
| 1174 char_u time_buf[8]; | |
|
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1175 |
|
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1176 /* Start writing, first the magic marker and undo info version. */ |
|
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1177 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1) |
|
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1178 return FAIL; |
|
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1179 |
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|
1180 /* If the buffer is encrypted then all text bytes following will be |
|
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1181 * encrypted. Numbers and other info is not crypted. */ |
|
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|
1182 #ifdef FEAT_CRYPT |
|
2410
8f6106dd3d12
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|
1183 if (*buf->b_p_key != NUL) |
|
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1184 { |
|
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1185 char_u *header; |
|
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|
1186 int header_len; |
|
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|
1187 |
| 6122 | 1188 undo_write_bytes(bi, (long_u)UF_VERSION_CRYPT, 2); |
| 1189 bi->bi_state = crypt_create_for_writing(crypt_get_method_nr(buf), | |
| 1190 buf->b_p_key, &header, &header_len); | |
| 1191 if (bi->bi_state == NULL) | |
|
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1192 return FAIL; |
|
2245
4e0124f5aee2
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diff
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|
1193 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp); |
|
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|
1194 vim_free(header); |
|
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|
1195 if (len != 1) |
| 2267 | 1196 { |
| 6122 | 1197 crypt_free_state(bi->bi_state); |
| 1198 bi->bi_state = NULL; | |
|
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|
1199 return FAIL; |
| 2267 | 1200 } |
| 6122 | 1201 |
| 1202 if (crypt_whole_undofile(crypt_get_method_nr(buf))) | |
| 1203 { | |
| 1204 bi->bi_buffer = alloc(CRYPT_BUF_SIZE); | |
| 1205 if (bi->bi_buffer == NULL) | |
| 1206 { | |
| 1207 crypt_free_state(bi->bi_state); | |
| 1208 bi->bi_state = NULL; | |
| 1209 return FAIL; | |
| 1210 } | |
| 1211 bi->bi_used = 0; | |
| 1212 } | |
|
2239
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|
1213 } |
|
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|
1214 else |
|
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|
1215 #endif |
| 6122 | 1216 undo_write_bytes(bi, (long_u)UF_VERSION, 2); |
|
2239
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|
1217 |
|
2238
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|
1218 |
|
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|
1219 /* Write a hash of the buffer text, so that we can verify it is still the |
|
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|
1220 * same when reading the buffer text. */ |
| 6122 | 1221 if (undo_write(bi, hash, (size_t)UNDO_HASH_SIZE) == FAIL) |
|
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|
1222 return FAIL; |
|
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|
1223 |
|
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Made reading/writing undo info a bit more robust.
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|
1224 /* buffer-specific data */ |
| 6122 | 1225 undo_write_bytes(bi, (long_u)buf->b_ml.ml_line_count, 4); |
|
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|
1226 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0; |
| 6122 | 1227 undo_write_bytes(bi, (long_u)len, 4); |
| 1228 if (len > 0 && fwrite_crypt(bi, buf->b_u_line_ptr, (size_t)len) == FAIL) | |
|
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|
1229 return FAIL; |
| 6122 | 1230 undo_write_bytes(bi, (long_u)buf->b_u_line_lnum, 4); |
| 1231 undo_write_bytes(bi, (long_u)buf->b_u_line_colnr, 4); | |
|
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|
1232 |
|
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|
1233 /* Undo structures header data */ |
| 6122 | 1234 put_header_ptr(bi, buf->b_u_oldhead); |
| 1235 put_header_ptr(bi, buf->b_u_newhead); | |
| 1236 put_header_ptr(bi, buf->b_u_curhead); | |
| 1237 | |
| 1238 undo_write_bytes(bi, (long_u)buf->b_u_numhead, 4); | |
| 1239 undo_write_bytes(bi, (long_u)buf->b_u_seq_last, 4); | |
| 1240 undo_write_bytes(bi, (long_u)buf->b_u_seq_cur, 4); | |
| 1241 time_to_bytes(buf->b_u_time_cur, time_buf); | |
| 1242 undo_write(bi, time_buf, 8); | |
|
2280
941ff1cd317a
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|
1243 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1244 /* Optional fields. */ |
| 6122 | 1245 undo_write_bytes(bi, 4, 1); |
| 1246 undo_write_bytes(bi, UF_LAST_SAVE_NR, 1); | |
| 1247 undo_write_bytes(bi, (long_u)buf->b_u_save_nr_last, 4); | |
| 1248 | |
| 1249 undo_write_bytes(bi, 0, 1); /* end marker */ | |
|
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|
1250 |
|
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|
1251 return OK; |
|
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|
1252 } |
|
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|
1253 |
|
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|
1254 static int |
| 6122 | 1255 serialize_uhp(bi, uhp) |
| 1256 bufinfo_T *bi; | |
|
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|
1257 u_header_T *uhp; |
|
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|
1258 { |
|
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|
1259 int i; |
|
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|
1260 u_entry_T *uep; |
| 6122 | 1261 char_u time_buf[8]; |
| 1262 | |
| 1263 if (undo_write_bytes(bi, (long_u)UF_HEADER_MAGIC, 2) == FAIL) | |
|
2238
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|
1264 return FAIL; |
|
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|
1265 |
| 6122 | 1266 put_header_ptr(bi, uhp->uh_next.ptr); |
| 1267 put_header_ptr(bi, uhp->uh_prev.ptr); | |
| 1268 put_header_ptr(bi, uhp->uh_alt_next.ptr); | |
| 1269 put_header_ptr(bi, uhp->uh_alt_prev.ptr); | |
| 1270 undo_write_bytes(bi, uhp->uh_seq, 4); | |
| 1271 serialize_pos(bi, uhp->uh_cursor); | |
|
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|
1272 #ifdef FEAT_VIRTUALEDIT |
| 6122 | 1273 undo_write_bytes(bi, (long_u)uhp->uh_cursor_vcol, 4); |
|
2238
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|
1274 #else |
| 6122 | 1275 undo_write_bytes(bi, (long_u)0, 4); |
|
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|
1276 #endif |
| 6122 | 1277 undo_write_bytes(bi, (long_u)uhp->uh_flags, 2); |
|
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|
1278 /* Assume NMARKS will stay the same. */ |
|
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|
1279 for (i = 0; i < NMARKS; ++i) |
| 6122 | 1280 serialize_pos(bi, uhp->uh_namedm[i]); |
| 1281 serialize_visualinfo(bi, &uhp->uh_visual); | |
| 1282 time_to_bytes(uhp->uh_time, time_buf); | |
| 1283 undo_write(bi, time_buf, 8); | |
|
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|
1284 |
|
2280
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|
1285 /* Optional fields. */ |
| 6122 | 1286 undo_write_bytes(bi, 4, 1); |
| 1287 undo_write_bytes(bi, UHP_SAVE_NR, 1); | |
| 1288 undo_write_bytes(bi, (long_u)uhp->uh_save_nr, 4); | |
| 1289 | |
| 1290 undo_write_bytes(bi, 0, 1); /* end marker */ | |
|
2280
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|
1291 |
|
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|
1292 /* Write all the entries. */ |
|
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|
1293 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next) |
|
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|
1294 { |
| 6122 | 1295 undo_write_bytes(bi, (long_u)UF_ENTRY_MAGIC, 2); |
| 1296 if (serialize_uep(bi, uep) == FAIL) | |
|
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1297 return FAIL; |
|
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|
1298 } |
| 6122 | 1299 undo_write_bytes(bi, (long_u)UF_ENTRY_END_MAGIC, 2); |
|
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1300 return OK; |
|
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1301 } |
|
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1302 |
|
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|
1303 static u_header_T * |
| 6122 | 1304 unserialize_uhp(bi, file_name) |
| 1305 bufinfo_T *bi; | |
|
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|
1306 char_u *file_name; |
|
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|
1307 { |
|
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|
1308 u_header_T *uhp; |
|
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|
1309 int i; |
|
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|
1310 u_entry_T *uep, *last_uep; |
|
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|
1311 int c; |
|
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|
1312 int error; |
|
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|
1313 |
|
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|
1314 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T)); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1315 if (uhp == NULL) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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2236
diff
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|
1316 return NULL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1317 vim_memset(uhp, 0, sizeof(u_header_T)); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1318 #ifdef U_DEBUG |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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diff
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|
1319 uhp->uh_magic = UH_MAGIC; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1320 #endif |
| 6122 | 1321 uhp->uh_next.seq = undo_read_4c(bi); |
| 1322 uhp->uh_prev.seq = undo_read_4c(bi); | |
| 1323 uhp->uh_alt_next.seq = undo_read_4c(bi); | |
| 1324 uhp->uh_alt_prev.seq = undo_read_4c(bi); | |
| 1325 uhp->uh_seq = undo_read_4c(bi); | |
|
2238
3d0a7beb0d75
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Bram Moolenaar <bram@vim.org>
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diff
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|
1326 if (uhp->uh_seq <= 0) |
|
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1327 { |
|
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Made reading/writing undo info a bit more robust.
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diff
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|
1328 corruption_error("uh_seq", file_name); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1329 vim_free(uhp); |
|
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1330 return NULL; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1331 } |
| 6122 | 1332 unserialize_pos(bi, &uhp->uh_cursor); |
|
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1333 #ifdef FEAT_VIRTUALEDIT |
| 6122 | 1334 uhp->uh_cursor_vcol = undo_read_4c(bi); |
|
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1335 #else |
| 6122 | 1336 (void)undo_read_4c(bi); |
|
2238
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Bram Moolenaar <bram@vim.org>
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diff
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|
1337 #endif |
| 6122 | 1338 uhp->uh_flags = undo_read_2c(bi); |
|
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1339 for (i = 0; i < NMARKS; ++i) |
| 6122 | 1340 unserialize_pos(bi, &uhp->uh_namedm[i]); |
| 1341 unserialize_visualinfo(bi, &uhp->uh_visual); | |
| 1342 uhp->uh_time = undo_read_time(bi); | |
|
2238
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1343 |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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|
1344 /* Optional fields. */ |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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2311
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|
1345 for (;;) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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2311
diff
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|
1346 { |
| 6122 | 1347 int len = undo_read_byte(bi); |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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|
1348 int what; |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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diff
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|
1349 |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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|
1350 if (len == 0) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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diff
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|
1351 break; |
| 6122 | 1352 what = undo_read_byte(bi); |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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|
1353 switch (what) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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|
1354 { |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
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|
1355 case UHP_SAVE_NR: |
| 6122 | 1356 uhp->uh_save_nr = undo_read_4c(bi); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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|
1357 break; |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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|
1358 default: |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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|
1359 /* field not supported, skip */ |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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|
1360 while (--len >= 0) |
| 6122 | 1361 (void)undo_read_byte(bi); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
1362 } |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
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diff
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|
1363 } |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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diff
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|
1364 |
|
2238
3d0a7beb0d75
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|
1365 /* Unserialize the uep list. */ |
|
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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diff
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|
1366 last_uep = NULL; |
| 6122 | 1367 while ((c = undo_read_2c(bi)) == UF_ENTRY_MAGIC) |
|
2238
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|
1368 { |
|
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Made reading/writing undo info a bit more robust.
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|
1369 error = FALSE; |
| 6122 | 1370 uep = unserialize_uep(bi, &error, file_name); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
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|
1371 if (last_uep == NULL) |
|
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|
1372 uhp->uh_entry = uep; |
|
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1373 else |
|
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1374 last_uep->ue_next = uep; |
|
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diff
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|
1375 last_uep = uep; |
|
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Made reading/writing undo info a bit more robust.
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2236
diff
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|
1376 if (uep == NULL || error) |
|
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Bram Moolenaar <bram@vim.org>
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|
1377 { |
|
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Made reading/writing undo info a bit more robust.
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|
1378 u_free_uhp(uhp); |
|
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Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1379 return NULL; |
|
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|
1380 } |
|
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|
1381 } |
|
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Made reading/writing undo info a bit more robust.
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|
1382 if (c != UF_ENTRY_END_MAGIC) |
|
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|
1383 { |
|
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Made reading/writing undo info a bit more robust.
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parents:
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|
1384 corruption_error("entry end", file_name); |
|
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Made reading/writing undo info a bit more robust.
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parents:
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|
1385 u_free_uhp(uhp); |
|
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|
1386 return NULL; |
|
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|
1387 } |
|
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|
1388 |
|
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parents:
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|
1389 return uhp; |
|
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|
1390 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
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|
1391 |
|
2231
aa6412cab544
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Bram Moolenaar <bram@vim.org>
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diff
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|
1392 /* |
| 6122 | 1393 * Serialize "uep". |
|
2231
aa6412cab544
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|
1394 */ |
|
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Bram Moolenaar <bram@vim.org>
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diff
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|
1395 static int |
| 6122 | 1396 serialize_uep(bi, uep) |
| 1397 bufinfo_T *bi; | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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2230
diff
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|
1398 u_entry_T *uep; |
|
aa6412cab544
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|
1399 { |
|
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|
1400 int i; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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parents:
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|
1401 size_t len; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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diff
changeset
|
1402 |
| 6122 | 1403 undo_write_bytes(bi, (long_u)uep->ue_top, 4); |
| 1404 undo_write_bytes(bi, (long_u)uep->ue_bot, 4); | |
| 1405 undo_write_bytes(bi, (long_u)uep->ue_lcount, 4); | |
| 1406 undo_write_bytes(bi, (long_u)uep->ue_size, 4); | |
|
2231
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Bram Moolenaar <bram@vim.org>
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|
1407 for (i = 0; i < uep->ue_size; ++i) |
|
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Various improvements to undo file code to make it more robust.
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|
1408 { |
|
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|
1409 len = STRLEN(uep->ue_array[i]); |
| 6122 | 1410 if (undo_write_bytes(bi, (long_u)len, 4) == FAIL) |
|
2231
aa6412cab544
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|
1411 return FAIL; |
| 6122 | 1412 if (len > 0 && fwrite_crypt(bi, uep->ue_array[i], len) == FAIL) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1413 return FAIL; |
|
aa6412cab544
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|
1414 } |
|
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Various improvements to undo file code to make it more robust.
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|
1415 return OK; |
|
aa6412cab544
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|
1416 } |
|
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Various improvements to undo file code to make it more robust.
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|
1417 |
|
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|
1418 static u_entry_T * |
| 6122 | 1419 unserialize_uep(bi, error, file_name) |
| 1420 bufinfo_T *bi; | |
|
2231
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Various improvements to undo file code to make it more robust.
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|
1421 int *error; |
|
aa6412cab544
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|
1422 char_u *file_name; |
|
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|
1423 { |
|
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|
1424 int i; |
|
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|
1425 u_entry_T *uep; |
|
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Various improvements to undo file code to make it more robust.
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|
1426 char_u **array; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1427 char_u *line; |
|
aa6412cab544
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|
1428 int line_len; |
|
aa6412cab544
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|
1429 |
|
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|
1430 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T)); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
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|
1431 if (uep == NULL) |
|
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|
1432 return NULL; |
|
aa6412cab544
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|
1433 vim_memset(uep, 0, sizeof(u_entry_T)); |
|
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|
1434 #ifdef U_DEBUG |
|
aa6412cab544
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|
1435 uep->ue_magic = UE_MAGIC; |
|
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|
1436 #endif |
| 6122 | 1437 uep->ue_top = undo_read_4c(bi); |
| 1438 uep->ue_bot = undo_read_4c(bi); | |
| 1439 uep->ue_lcount = undo_read_4c(bi); | |
| 1440 uep->ue_size = undo_read_4c(bi); | |
|
2231
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|
1441 if (uep->ue_size > 0) |
|
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|
1442 { |
|
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|
1443 array = (char_u **)U_ALLOC_LINE(sizeof(char_u *) * uep->ue_size); |
|
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|
1444 if (array == NULL) |
|
aa6412cab544
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|
1445 { |
|
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|
1446 *error = TRUE; |
|
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|
1447 return uep; |
|
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|
1448 } |
|
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|
1449 vim_memset(array, 0, sizeof(char_u *) * uep->ue_size); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1450 } |
|
2232
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents:
2231
diff
changeset
|
1451 else |
|
2e6906bbc5f4
A few more fixes for undo file. Split test in two parts so that it doesn't
Bram Moolenaar <bram@vim.org>
parents:
2231
diff
changeset
|
1452 array = NULL; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1453 uep->ue_array = array; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1454 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1455 for (i = 0; i < uep->ue_size; ++i) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1456 { |
| 6122 | 1457 line_len = undo_read_4c(bi); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1458 if (line_len >= 0) |
| 6122 | 1459 line = read_string_decrypt(bi, line_len); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1460 else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1461 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1462 line = NULL; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1463 corruption_error("line length", file_name); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1464 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1465 if (line == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1466 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1467 *error = TRUE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1468 return uep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1469 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1470 array[i] = line; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1471 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1472 return uep; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1473 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1474 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1475 /* |
| 6122 | 1476 * Serialize "pos". |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1477 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1478 static void |
| 6122 | 1479 serialize_pos(bi, pos) |
| 1480 bufinfo_T *bi; | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1481 pos_T pos; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1482 { |
| 6122 | 1483 undo_write_bytes(bi, (long_u)pos.lnum, 4); |
| 1484 undo_write_bytes(bi, (long_u)pos.col, 4); | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1485 #ifdef FEAT_VIRTUALEDIT |
| 6122 | 1486 undo_write_bytes(bi, (long_u)pos.coladd, 4); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1487 #else |
| 6122 | 1488 undo_write_bytes(bi, (long_u)0, 4); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1489 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1490 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1491 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1492 /* |
| 6122 | 1493 * Unserialize the pos_T at the current position. |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1494 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1495 static void |
| 6122 | 1496 unserialize_pos(bi, pos) |
| 1497 bufinfo_T *bi; | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1498 pos_T *pos; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1499 { |
| 6122 | 1500 pos->lnum = undo_read_4c(bi); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1501 if (pos->lnum < 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1502 pos->lnum = 0; |
| 6122 | 1503 pos->col = undo_read_4c(bi); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1504 if (pos->col < 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1505 pos->col = 0; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1506 #ifdef FEAT_VIRTUALEDIT |
| 6122 | 1507 pos->coladd = undo_read_4c(bi); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1508 if (pos->coladd < 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1509 pos->coladd = 0; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1510 #else |
| 6122 | 1511 (void)undo_read_4c(bi); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1512 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1513 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1514 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1515 /* |
| 6122 | 1516 * Serialize "info". |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1517 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1518 static void |
| 6122 | 1519 serialize_visualinfo(bi, info) |
| 1520 bufinfo_T *bi; | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1521 visualinfo_T *info; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1522 { |
| 6122 | 1523 serialize_pos(bi, info->vi_start); |
| 1524 serialize_pos(bi, info->vi_end); | |
| 1525 undo_write_bytes(bi, (long_u)info->vi_mode, 4); | |
| 1526 undo_write_bytes(bi, (long_u)info->vi_curswant, 4); | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1527 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1528 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1529 /* |
| 6122 | 1530 * Unserialize the visualinfo_T at the current position. |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1531 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1532 static void |
| 6122 | 1533 unserialize_visualinfo(bi, info) |
| 1534 bufinfo_T *bi; | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1535 visualinfo_T *info; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1536 { |
| 6122 | 1537 unserialize_pos(bi, &info->vi_start); |
| 1538 unserialize_pos(bi, &info->vi_end); | |
| 1539 info->vi_mode = undo_read_4c(bi); | |
| 1540 info->vi_curswant = undo_read_4c(bi); | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1541 } |
|
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 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1544 * Write the undo tree in an undo file. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1545 * When "name" is not NULL, use it as the name of the undo file. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1546 * Otherwise use buf->b_ffname to generate the undo file name. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1547 * "buf" must never be null, buf->b_ffname is used to obtain the original file |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1548 * permissions. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1549 * "forceit" is TRUE for ":wundo!", FALSE otherwise. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1550 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1551 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1552 void |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1553 u_write_undo(name, forceit, buf, hash) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1554 char_u *name; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1555 int forceit; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1556 buf_T *buf; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1557 char_u *hash; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1558 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1559 u_header_T *uhp; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1560 char_u *file_name; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1561 int mark; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1562 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1563 int headers_written = 0; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1564 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1565 int fd; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1566 FILE *fp = NULL; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1567 int perm; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1568 int write_ok = FALSE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1569 #ifdef UNIX |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1570 int st_old_valid = FALSE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1571 struct stat st_old; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1572 struct stat st_new; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1573 #endif |
| 6122 | 1574 bufinfo_T bi; |
| 1575 | |
| 6128 | 1576 vim_memset(&bi, 0, sizeof(bi)); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1577 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1578 if (name == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1579 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1580 file_name = u_get_undo_file_name(buf->b_ffname, FALSE); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1581 if (file_name == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1582 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1583 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
|
1584 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1585 verbose_enter(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1586 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
|
1587 _("Cannot write undo file in any directory in 'undodir'")); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1588 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1589 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1590 return; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1591 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1592 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1593 else |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1594 file_name = name; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1595 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1596 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1597 * Decide about the permission to use for the undo file. If the buffer |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1598 * has a name use the permission of the original file. Otherwise only |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1599 * allow the user to access the undo file. |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1600 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1601 perm = 0600; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1602 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
|
1603 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1604 #ifdef UNIX |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1605 if (mch_stat((char *)buf->b_ffname, &st_old) >= 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1606 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1607 perm = st_old.st_mode; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1608 st_old_valid = TRUE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1609 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1610 #else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1611 perm = mch_getperm(buf->b_ffname); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1612 if (perm < 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1613 perm = 0600; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1614 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1615 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1616 |
| 6771 | 1617 /* strip any s-bit and executable bit */ |
| 1618 perm = perm & 0666; | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1619 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1620 /* 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
|
1621 * 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
|
1622 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
|
1623 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1624 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
|
1625 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1626 /* 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
|
1627 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
|
1628 if (fd < 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1629 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1630 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
|
1631 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1632 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
|
1633 verbose_enter(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1634 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
|
1635 _("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
|
1636 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 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
|
1638 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1639 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1640 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1641 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1642 else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1643 { |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1644 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
|
1645 int len; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1646 |
| 2664 | 1647 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
|
1648 close(fd); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1649 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
|
1650 || 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
|
1651 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1652 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
|
1653 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1654 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
|
1655 verbose_enter(); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1656 smsg((char_u *) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1657 _("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
|
1658 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
|
1659 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
|
1660 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1661 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1662 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1663 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1664 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1665 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1666 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
|
1667 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1668 |
|
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1669 /* 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
|
1670 * existing undo file. */ |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1671 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
|
1672 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1673 if (p_verbose > 0) |
| 2262 | 1674 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
|
1675 goto theend; |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1676 } |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1677 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1678 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
|
1679 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
|
1680 if (fd < 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1681 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1682 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
|
1683 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1684 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1685 (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
|
1686 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
|
1687 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1688 verbose_enter(); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1689 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
|
1690 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1691 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1692 |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1693 #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
|
1694 /* 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
|
1695 u_check(FALSE); |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1696 #endif |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1697 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1698 #ifdef UNIX |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1699 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1700 * 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
|
1701 * 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
|
1702 * 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
|
1703 */ |
|
2367
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1704 if (st_old_valid |
|
76b7ba68a098
Fix build problem when fchown() not available. (Gary Johnson)
Bram Moolenaar <bram@vim.org>
parents:
2348
diff
changeset
|
1705 && 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
|
1706 && 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
|
1707 # 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
|
1708 && 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
|
1709 # endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1710 ) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1711 mch_setperm(file_name, (perm & 0707) | ((perm & 07) << 3)); |
| 5788 | 1712 # if defined(HAVE_SELINUX) || defined(HAVE_SMACK) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1713 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
|
1714 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
|
1715 # endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1716 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1717 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1718 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
|
1719 if (fp == NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1720 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1721 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
|
1722 close(fd); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1723 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
|
1724 goto theend; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1725 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1726 |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1727 /* Undo must be synced. */ |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1728 u_sync(TRUE); |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
1729 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1730 /* |
| 6122 | 1731 * Write the header. Initializes encryption, if enabled. |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1732 */ |
| 6122 | 1733 bi.bi_buf = buf; |
| 1734 bi.bi_fp = fp; | |
| 1735 if (serialize_header(&bi, hash) == FAIL) | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1736 goto write_error; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1737 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1738 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1739 * 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
|
1740 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1741 mark = ++lastmark; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1742 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
|
1743 while (uhp != NULL) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1744 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1745 /* 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
|
1746 if (uhp->uh_walk != mark) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1747 { |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1748 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
|
1749 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1750 ++headers_written; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1751 #endif |
| 6122 | 1752 if (serialize_uhp(&bi, uhp) == FAIL) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1753 goto write_error; |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1754 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1755 |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1756 /* 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
|
1757 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
|
1758 uhp = uhp->uh_prev.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1759 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
|
1760 && 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
|
1761 uhp = uhp->uh_alt_next.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1762 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
|
1763 && uhp->uh_next.ptr->uh_walk != mark) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1764 uhp = uhp->uh_next.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1765 else if (uhp->uh_alt_prev.ptr != NULL) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1766 uhp = uhp->uh_alt_prev.ptr; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1767 else |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1768 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
|
1769 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1770 |
| 6122 | 1771 if (undo_write_bytes(&bi, (long_u)UF_HEADER_END_MAGIC, 2) == OK) |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1772 write_ok = TRUE; |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1773 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1774 if (headers_written != buf->b_u_numhead) |
|
4827
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1775 { |
|
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1776 EMSGN("Written %ld headers, ...", headers_written); |
|
60301d4d1682
updated for version 7.3.1160
Bram Moolenaar <bram@vim.org>
parents:
4303
diff
changeset
|
1777 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
|
1778 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1779 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1780 |
| 6122 | 1781 #ifdef FEAT_CRYPT |
| 1782 if (bi.bi_state != NULL && undo_flush(&bi) == FAIL) | |
| 1783 write_ok = FALSE; | |
| 1784 #endif | |
| 1785 | |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1786 write_error: |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1787 fclose(fp); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1788 if (!write_ok) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1789 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
|
1790 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1791 #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
|
1792 /* 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
|
1793 * 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
|
1794 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
|
1795 (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
|
1796 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1797 #ifdef HAVE_ACL |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1798 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
|
1799 { |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1800 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
|
1801 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1802 /* 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
|
1803 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
|
1804 mch_set_acl(file_name, acl); |
| 3545 | 1805 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
|
1806 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1807 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1808 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1809 theend: |
| 2267 | 1810 #ifdef FEAT_CRYPT |
| 6122 | 1811 if (bi.bi_state != NULL) |
| 1812 crypt_free_state(bi.bi_state); | |
| 1813 vim_free(bi.bi_buffer); | |
| 2267 | 1814 #endif |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1815 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
|
1816 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
|
1817 } |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1818 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1819 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1820 * 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
|
1821 * 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
|
1822 * 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
|
1823 * 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
|
1824 * "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
|
1825 */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1826 void |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1827 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
|
1828 char_u *name; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1829 char_u *hash; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1830 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
|
1831 { |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1832 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
|
1833 FILE *fp; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1834 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
|
1835 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
|
1836 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
|
1837 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
|
1838 linenr_T line_count; |
|
2217
120502692d82
Improve the MS-Windows installer.
Bram Moolenaar <bram@vim.org>
parents:
2215
diff
changeset
|
1839 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
|
1840 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
|
1841 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
|
1842 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
|
1843 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
|
1844 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
|
1845 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
|
1846 int i, j; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1847 int c; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1848 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
|
1849 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
|
1850 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
|
1851 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
|
1852 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1853 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
|
1854 #endif |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1855 #ifdef UNIX |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1856 struct stat st_orig; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1857 struct stat st_undo; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1858 #endif |
| 6122 | 1859 bufinfo_T bi; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1860 |
| 6128 | 1861 vim_memset(&bi, 0, sizeof(bi)); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1862 if (name == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1863 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1864 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
|
1865 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
|
1866 return; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1867 |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1868 #ifdef UNIX |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1869 /* For safety we only read an undo file if the owner is equal to the |
| 5343 | 1870 * 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
|
1871 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
|
1872 && mch_stat((char *)file_name, &st_undo) >= 0 |
| 5343 | 1873 && st_orig.st_uid != st_undo.st_uid |
| 1874 && 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
|
1875 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1876 if (p_verbose > 0) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1877 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1878 verbose_enter(); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1879 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
|
1880 file_name); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1881 verbose_leave(); |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1882 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1883 return; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1884 } |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1885 #endif |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1886 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1887 else |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1888 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
|
1889 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1890 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
|
1891 { |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1892 verbose_enter(); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1893 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
|
1894 verbose_leave(); |
|
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1895 } |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1896 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1897 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
|
1898 if (fp == NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1899 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1900 if (name != NULL || p_verbose > 0) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1901 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
|
1902 goto error; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1903 } |
| 6122 | 1904 bi.bi_buf = curbuf; |
| 1905 bi.bi_fp = fp; | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1906 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1907 /* |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1908 * 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
|
1909 */ |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1910 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
|
1911 || 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
|
1912 { |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1913 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
|
1914 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1915 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1916 version = get2c(fp); |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1917 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
|
1918 { |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1919 #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
|
1920 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
|
1921 { |
|
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1922 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
|
1923 file_name); |
|
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1924 goto error; |
|
646d34788036
Fix a few compiler warnings. Fix crash with encrypted undo file.
Bram Moolenaar <bram@vim.org>
parents:
2245
diff
changeset
|
1925 } |
| 6122 | 1926 bi.bi_state = crypt_create_from_file(fp, curbuf->b_p_key); |
| 1927 if (bi.bi_state == NULL) | |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1928 { |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1929 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
|
1930 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
|
1931 } |
| 6122 | 1932 if (crypt_whole_undofile(bi.bi_state->method_nr)) |
| 1933 { | |
| 1934 bi.bi_buffer = alloc(CRYPT_BUF_SIZE); | |
| 1935 if (bi.bi_buffer == NULL) | |
| 1936 { | |
| 1937 crypt_free_state(bi.bi_state); | |
| 1938 bi.bi_state = NULL; | |
| 1939 goto error; | |
| 1940 } | |
| 1941 bi.bi_avail = 0; | |
| 1942 bi.bi_used = 0; | |
| 1943 } | |
|
2239
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1944 #else |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1945 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
|
1946 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
|
1947 #endif |
|
732cb7b31956
Crypt the text in the undo file if the file itself is crypted.
Bram Moolenaar <bram@vim.org>
parents:
2238
diff
changeset
|
1948 } |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1949 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
|
1950 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1951 EMSG2(_("E824: Incompatible undo file: %s"), file_name); |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1952 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1953 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1954 |
| 6122 | 1955 if (undo_read(&bi, read_hash, (size_t)UNDO_HASH_SIZE) == FAIL) |
|
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1956 { |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
1957 corruption_error("hash", file_name); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1958 goto error; |
|
2229
d45902a5c61c
Fix a few more things for persistent undo.
Bram Moolenaar <bram@vim.org>
parents:
2223
diff
changeset
|
1959 } |
| 6122 | 1960 line_count = (linenr_T)undo_read_4c(&bi); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1961 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
|
1962 || 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
|
1963 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1964 if (p_verbose > 0 || name != NULL) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1965 { |
|
2235
4ba83ae8d505
Do not write an undo file if there is nothing to undo.
Bram Moolenaar <bram@vim.org>
parents:
2234
diff
changeset
|
1966 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
|
1967 verbose_enter(); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1968 give_warning((char_u *) |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1969 _("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
|
1970 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
|
1971 verbose_leave(); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1972 } |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1973 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1974 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1975 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1976 /* Read undo data for "U" command. */ |
| 6122 | 1977 str_len = undo_read_4c(&bi); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1978 if (str_len < 0) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
1979 goto error; |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1980 if (str_len > 0) |
| 6122 | 1981 line_ptr = read_string_decrypt(&bi, str_len); |
| 1982 line_lnum = (linenr_T)undo_read_4c(&bi); | |
| 1983 line_colnr = (colnr_T)undo_read_4c(&bi); | |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1984 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
|
1985 { |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1986 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
|
1987 goto error; |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
1988 } |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1989 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1990 /* Begin general undo data */ |
| 6122 | 1991 old_header_seq = undo_read_4c(&bi); |
| 1992 new_header_seq = undo_read_4c(&bi); | |
| 1993 cur_header_seq = undo_read_4c(&bi); | |
| 1994 num_head = undo_read_4c(&bi); | |
| 1995 seq_last = undo_read_4c(&bi); | |
| 1996 seq_cur = undo_read_4c(&bi); | |
| 1997 seq_time = undo_read_time(&bi); | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
1998 |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
1999 /* Optional header fields. */ |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2000 for (;;) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2001 { |
| 6122 | 2002 int len = undo_read_byte(&bi); |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2003 int what; |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2004 |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2005 if (len == 0 || len == EOF) |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2006 break; |
| 6122 | 2007 what = undo_read_byte(&bi); |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2008 switch (what) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2009 { |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2010 case UF_LAST_SAVE_NR: |
| 6122 | 2011 last_save_nr = undo_read_4c(&bi); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2012 break; |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2013 default: |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2014 /* field not supported, skip */ |
|
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2015 while (--len >= 0) |
| 6122 | 2016 (void)undo_read_byte(&bi); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2017 } |
|
2342
f6540762173d
Fixes and improvements for MS-Windows build.
Bram Moolenaar <bram@vim.org>
parents:
2311
diff
changeset
|
2018 } |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2019 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2020 /* 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
|
2021 * 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
|
2022 * 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
|
2023 * 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
|
2024 if (num_head > 0) |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2025 { |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2026 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
|
2027 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
|
2028 if (uhp_table == NULL) |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2029 goto error; |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2030 } |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2031 |
| 6122 | 2032 while ((c = undo_read_2c(&bi)) == UF_HEADER_MAGIC) |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2033 { |
|
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2034 if (num_read_uhps >= num_head) |
|
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2035 { |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2036 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
|
2037 goto error; |
|
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2038 } |
|
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2039 |
| 6122 | 2040 uhp = unserialize_uhp(&bi, file_name); |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2041 if (uhp == NULL) |
|
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2042 goto error; |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2043 uhp_table[num_read_uhps++] = uhp; |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2044 } |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2045 |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2046 if (num_read_uhps != num_head) |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2047 { |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2048 corruption_error("num_head", file_name); |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2049 goto error; |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2050 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2051 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
|
2052 { |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2053 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
|
2054 goto error; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2055 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2056 |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2057 #ifdef U_DEBUG |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2058 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
|
2059 (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
|
2060 # 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
|
2061 #else |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2062 # 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
|
2063 #endif |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2064 |
|
2238
3d0a7beb0d75
Made reading/writing undo info a bit more robust.
Bram Moolenaar <bram@vim.org>
parents:
2236
diff
changeset
|
2065 /* 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
|
2066 * 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
|
2067 * 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
|
2068 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
|
2069 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2070 uhp = uhp_table[i]; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2071 if (uhp == NULL) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2072 continue; |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2073 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2074 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
|
2075 && 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
|
2076 { |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2077 corruption_error("duplicate uh_seq", file_name); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2078 goto error; |
|
2233
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2079 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2080 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2081 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
|
2082 && 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
|
2083 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2084 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
|
2085 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2086 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2087 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2088 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2089 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
|
2090 && 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
|
2091 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2092 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
|
2093 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2094 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2095 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2096 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2097 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
|
2098 && 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
|
2099 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2100 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
|
2101 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2102 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2103 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2104 for (j = 0; j < num_head; j++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2105 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
|
2106 && 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
|
2107 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2108 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
|
2109 SET_FLAG(j); |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2110 break; |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2111 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2112 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
|
2113 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2114 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
|
2115 SET_FLAG(i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2116 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2117 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
|
2118 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2119 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
|
2120 SET_FLAG(i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2121 } |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2122 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
|
2123 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2124 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
|
2125 SET_FLAG(i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2126 } |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2127 } |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2128 |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2129 /* 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
|
2130 * 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
|
2131 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
|
2132 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
|
2133 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
|
2134 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
|
2135 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
|
2136 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
|
2137 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
|
2138 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
|
2139 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
|
2140 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
|
2141 curbuf->b_u_time_cur = seq_time; |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2142 curbuf->b_u_save_nr_last = last_save_nr; |
| 2627 | 2143 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
|
2144 |
|
43cad213cb7f
A bit of cleanup and simplification for undofile.
Bram Moolenaar <bram@vim.org>
parents:
2232
diff
changeset
|
2145 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
|
2146 vim_free(uhp_table); |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2147 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2148 #ifdef U_DEBUG |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2149 for (i = 0; i < num_head; ++i) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2150 if (uhp_table_used[i] == 0) |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2151 EMSGN("uhp_table entry %ld not used, leaking memory", i); |
|
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2152 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
|
2153 u_check(TRUE); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2154 #endif |
|
2231
aa6412cab544
Various improvements to undo file code to make it more robust.
Bram Moolenaar <bram@vim.org>
parents:
2230
diff
changeset
|
2155 |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2156 if (name != NULL) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2157 smsg((char_u *)_("Finished reading undo file %s"), file_name); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2158 goto theend; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2159 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2160 error: |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2161 vim_free(line_ptr); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2162 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
|
2163 { |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2164 for (i = 0; i < num_read_uhps; i++) |
|
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2165 if (uhp_table[i] != NULL) |
|
2223
81b83a19e127
More strict checks for the undo file.
Bram Moolenaar <bram@vim.org>
parents:
2222
diff
changeset
|
2166 u_free_uhp(uhp_table[i]); |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2167 vim_free(uhp_table); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2168 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2169 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2170 theend: |
| 2267 | 2171 #ifdef FEAT_CRYPT |
| 6122 | 2172 if (bi.bi_state != NULL) |
| 2173 crypt_free_state(bi.bi_state); | |
| 2174 vim_free(bi.bi_buffer); | |
| 2267 | 2175 #endif |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2176 if (fp != NULL) |
|
2311
ccda151dde4e
Support completion for ":find". (Nazri Ramliy)
Bram Moolenaar <bram@vim.org>
parents:
2289
diff
changeset
|
2177 fclose(fp); |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2178 if (file_name != name) |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2179 vim_free(file_name); |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2180 return; |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2181 } |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2182 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2183 #endif /* FEAT_PERSISTENT_UNDO */ |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2184 |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2185 |
| 7 | 2186 /* |
| 2187 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible). | |
| 2188 * If 'cpoptions' does not contain 'u': Always undo. | |
| 2189 */ | |
| 2190 void | |
| 2191 u_undo(count) | |
| 2192 int count; | |
| 2193 { | |
| 2194 /* | |
| 2195 * If we get an undo command while executing a macro, we behave like the | |
| 2196 * original vi. If this happens twice in one macro the result will not | |
| 2197 * be compatible. | |
| 2198 */ | |
| 2199 if (curbuf->b_u_synced == FALSE) | |
| 2200 { | |
| 825 | 2201 u_sync(TRUE); |
| 7 | 2202 count = 1; |
| 2203 } | |
| 2204 | |
| 2205 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
| 2206 undo_undoes = TRUE; | |
| 2207 else | |
| 2208 undo_undoes = !undo_undoes; | |
| 2209 u_doit(count); | |
| 2210 } | |
| 2211 | |
| 2212 /* | |
| 2213 * If 'cpoptions' contains 'u': Repeat the previous undo or redo. | |
| 2214 * If 'cpoptions' does not contain 'u': Always redo. | |
| 2215 */ | |
| 2216 void | |
| 2217 u_redo(count) | |
| 2218 int count; | |
| 2219 { | |
| 2220 if (vim_strchr(p_cpo, CPO_UNDO) == NULL) | |
| 2221 undo_undoes = FALSE; | |
| 2222 u_doit(count); | |
| 2223 } | |
| 2224 | |
| 2225 /* | |
| 2226 * Undo or redo, depending on 'undo_undoes', 'count' times. | |
| 2227 */ | |
| 2228 static void | |
| 777 | 2229 u_doit(startcount) |
| 2230 int startcount; | |
| 7 | 2231 { |
| 777 | 2232 int count = startcount; |
| 2233 | |
| 632 | 2234 if (!undo_allowed()) |
| 7 | 2235 return; |
| 2236 | |
| 2237 u_newcount = 0; | |
| 2238 u_oldcount = 0; | |
| 179 | 2239 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
| 2240 u_oldcount = -1; | |
| 7 | 2241 while (count--) |
| 2242 { | |
| 2189 | 2243 /* Do the change warning now, so that it triggers FileChangedRO when |
| 2244 * needed. This may cause the file to be reloaded, that must happen | |
| 2245 * before we do anything, because it may change curbuf->b_u_curhead | |
| 2246 * and more. */ | |
| 2247 change_warning(0); | |
| 2248 | |
| 7 | 2249 if (undo_undoes) |
| 2250 { | |
| 2251 if (curbuf->b_u_curhead == NULL) /* first undo */ | |
| 2252 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
| 5446 | 2253 else if (get_undolevel() > 0) /* multi level undo */ |
| 7 | 2254 /* get next undo */ |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2255 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr; |
| 7 | 2256 /* nothing to undo */ |
| 2257 if (curbuf->b_u_numhead == 0 || curbuf->b_u_curhead == NULL) | |
| 2258 { | |
| 2259 /* stick curbuf->b_u_curhead at end */ | |
| 2260 curbuf->b_u_curhead = curbuf->b_u_oldhead; | |
| 2261 beep_flush(); | |
| 777 | 2262 if (count == startcount - 1) |
| 2263 { | |
| 2264 MSG(_("Already at oldest change")); | |
| 2265 return; | |
| 2266 } | |
| 7 | 2267 break; |
| 2268 } | |
| 2269 | |
| 777 | 2270 u_undoredo(TRUE); |
| 7 | 2271 } |
| 2272 else | |
| 2273 { | |
| 5446 | 2274 if (curbuf->b_u_curhead == NULL || get_undolevel() <= 0) |
| 7 | 2275 { |
| 2276 beep_flush(); /* nothing to redo */ | |
| 777 | 2277 if (count == startcount - 1) |
| 2278 { | |
| 2279 MSG(_("Already at newest change")); | |
| 2280 return; | |
| 2281 } | |
| 7 | 2282 break; |
| 2283 } | |
| 2284 | |
| 777 | 2285 u_undoredo(FALSE); |
| 753 | 2286 |
| 2287 /* Advance for next redo. Set "newhead" when at the end of the | |
| 2288 * redoable changes. */ | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2289 if (curbuf->b_u_curhead->uh_prev.ptr == NULL) |
| 753 | 2290 curbuf->b_u_newhead = curbuf->b_u_curhead; |
|
2242
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Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
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|
2291 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr; |
| 7 | 2292 } |
| 2293 } | |
| 798 | 2294 u_undo_end(undo_undoes, FALSE); |
| 753 | 2295 } |
| 2296 | |
| 2297 /* | |
| 2298 * Undo or redo over the timeline. | |
| 2299 * When "step" is negative go back in time, otherwise goes forward in time. | |
| 758 | 2300 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as |
| 2301 * seconds. | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2302 * When "file" is TRUE use "step" as a number of file writes. |
| 772 | 2303 * When "absolute" is TRUE use "step" as the sequence number to jump to. |
| 2304 * "sec" must be FALSE then. | |
| 753 | 2305 */ |
| 2306 void | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2307 undo_time(step, sec, file, absolute) |
| 758 | 2308 long step; |
| 2309 int sec; | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2310 int file; |
| 772 | 2311 int absolute; |
| 753 | 2312 { |
| 2313 long target; | |
| 2314 long closest; | |
| 758 | 2315 long closest_start; |
| 2316 long closest_seq = 0; | |
| 2317 long val; | |
| 753 | 2318 u_header_T *uhp; |
| 2319 u_header_T *last; | |
| 2320 int mark; | |
| 2321 int nomark; | |
| 2322 int round; | |
| 758 | 2323 int dosec = sec; |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2324 int dofile = file; |
| 758 | 2325 int above = FALSE; |
| 794 | 2326 int did_undo = TRUE; |
| 753 | 2327 |
| 766 | 2328 /* First make sure the current undoable change is synced. */ |
| 2329 if (curbuf->b_u_synced == FALSE) | |
| 825 | 2330 u_sync(TRUE); |
| 766 | 2331 |
| 753 | 2332 u_newcount = 0; |
| 2333 u_oldcount = 0; | |
| 179 | 2334 if (curbuf->b_ml.ml_flags & ML_EMPTY) |
| 753 | 2335 u_oldcount = -1; |
| 2336 | |
| 777 | 2337 /* "target" is the node below which we want to be. |
| 2338 * Init "closest" to a value we can't reach. */ | |
| 772 | 2339 if (absolute) |
| 2340 { | |
| 2341 target = step; | |
| 777 | 2342 closest = -1; |
| 753 | 2343 } |
| 2344 else | |
| 2345 { | |
| 777 | 2346 /* When doing computations with time_t subtract starttime, because |
| 2347 * 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
|
2348 if (dosec) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2349 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
|
2350 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2351 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2352 if (step < 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2353 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2354 /* 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
|
2355 * 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
|
2356 * that ":earlier 1f" undoes all changes since the last save. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2357 uhp = curbuf->b_u_curhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2358 if (uhp != NULL) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2359 uhp = uhp->uh_next.ptr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2360 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2361 uhp = curbuf->b_u_newhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2362 if (uhp != NULL && uhp->uh_save_nr != 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2363 /* "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
|
2364 * there were no changes since the last write */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2365 target = curbuf->b_u_save_nr_cur + step; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2366 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2367 /* 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
|
2368 target = curbuf->b_u_save_nr_cur + step + 1; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2369 if (target <= 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2370 /* 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
|
2371 * the sequence number for that. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2372 dofile = FALSE; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2373 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2374 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2375 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2376 /* Moving forward to a newer write. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2377 target = curbuf->b_u_save_nr_cur + step; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2378 if (target > curbuf->b_u_save_nr_last) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2379 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2380 /* 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
|
2381 * the sequence number for that. */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2382 target = curbuf->b_u_seq_last + 1; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2383 dofile = FALSE; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2384 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2385 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2386 } |
| 777 | 2387 else |
| 2388 target = curbuf->b_u_seq_cur + step; | |
| 2389 if (step < 0) | |
| 758 | 2390 { |
| 777 | 2391 if (target < 0) |
| 2392 target = 0; | |
| 2393 closest = -1; | |
| 758 | 2394 } |
| 2395 else | |
| 2396 { | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2397 if (dosec) |
| 798 | 2398 closest = (long)(time(NULL) - starttime + 1); |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2399 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2400 closest = curbuf->b_u_save_nr_last + 2; |
| 777 | 2401 else |
| 2402 closest = curbuf->b_u_seq_last + 2; | |
| 2403 if (target >= closest) | |
| 2404 target = closest - 1; | |
| 758 | 2405 } |
| 753 | 2406 } |
| 758 | 2407 closest_start = closest; |
| 777 | 2408 closest_seq = curbuf->b_u_seq_cur; |
| 753 | 2409 |
| 758 | 2410 /* |
| 2411 * May do this twice: | |
| 753 | 2412 * 1. Search for "target", update "closest" to the best match found. |
| 758 | 2413 * 2. If "target" not found search for "closest". |
| 2414 * | |
| 2415 * When using the closest time we use the sequence number in the second | |
| 2416 * round, because there may be several entries with the same time. | |
| 2417 */ | |
| 753 | 2418 for (round = 1; round <= 2; ++round) |
| 2419 { | |
| 2420 /* Find the path from the current state to where we want to go. The | |
| 2421 * desired state can be anywhere in the undo tree, need to go all over | |
| 2422 * it. We put "nomark" in uh_walk where we have been without success, | |
| 2423 * "mark" where it could possibly be. */ | |
| 2424 mark = ++lastmark; | |
| 2425 nomark = ++lastmark; | |
| 2426 | |
| 2427 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */ | |
| 2428 uhp = curbuf->b_u_newhead; | |
| 2429 else | |
| 2430 uhp = curbuf->b_u_curhead; | |
| 2431 | |
| 2432 while (uhp != NULL) | |
| 2433 { | |
| 2434 uhp->uh_walk = mark; | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2435 if (dosec) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2436 val = (long)(uhp->uh_time - starttime); |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2437 else if (dofile) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2438 val = uhp->uh_save_nr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2439 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2440 val = uhp->uh_seq; |
| 753 | 2441 |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2442 if (round == 1 && !(dofile && val == 0)) |
| 758 | 2443 { |
| 2444 /* Remember the header that is closest to the target. | |
| 2445 * It must be at least in the right direction (checked with | |
| 777 | 2446 * "b_u_seq_cur"). When the timestamp is equal find the |
| 758 | 2447 * highest/lowest sequence number. */ |
| 777 | 2448 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur |
| 2449 : uhp->uh_seq > curbuf->b_u_seq_cur) | |
| 2450 && ((dosec && val == closest) | |
| 2451 ? (step < 0 | |
| 2452 ? uhp->uh_seq < closest_seq | |
| 2453 : uhp->uh_seq > closest_seq) | |
| 2454 : closest == closest_start | |
| 2455 || (val > target | |
| 2456 ? (closest > target | |
| 2457 ? val - target <= closest - target | |
| 2458 : val - target <= target - closest) | |
| 2459 : (closest > target | |
| 2460 ? target - val <= closest - target | |
| 2461 : target - val <= target - closest)))) | |
| 758 | 2462 { |
| 2463 closest = val; | |
| 2464 closest_seq = uhp->uh_seq; | |
| 2465 } | |
| 2466 } | |
| 2467 | |
| 2468 /* Quit searching when we found a match. But when searching for a | |
| 2469 * time we need to continue looking for the best uh_seq. */ | |
| 2470 if (target == val && !dosec) | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2471 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2472 target = uhp->uh_seq; |
| 758 | 2473 break; |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2474 } |
| 753 | 2475 |
| 2476 /* go down in the tree if we haven't been there */ | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2477 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
|
2478 && 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
|
2479 uhp = uhp->uh_prev.ptr; |
| 753 | 2480 |
| 2481 /* 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
|
2482 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
|
2483 && 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
|
2484 && 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
|
2485 uhp = uhp->uh_alt_next.ptr; |
| 753 | 2486 |
| 2487 /* go up in the tree if we haven't been there and we are at the | |
| 2488 * 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
|
2489 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
|
2490 && 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
|
2491 && uhp->uh_next.ptr->uh_walk != mark) |
| 798 | 2492 { |
| 2493 /* If still at the start we don't go through this change. */ | |
| 2494 if (uhp == curbuf->b_u_curhead) | |
| 2495 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
|
2496 uhp = uhp->uh_next.ptr; |
| 798 | 2497 } |
| 753 | 2498 |
| 2499 else | |
| 2500 { | |
| 2501 /* need to backtrack; mark this node as useless */ | |
| 2502 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
|
2503 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
|
2504 uhp = uhp->uh_alt_prev.ptr; |
| 753 | 2505 else |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2506 uhp = uhp->uh_next.ptr; |
| 753 | 2507 } |
| 2508 } | |
| 2509 | |
| 2510 if (uhp != NULL) /* found it */ | |
| 2511 break; | |
| 772 | 2512 |
| 2513 if (absolute) | |
| 2514 { | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2515 EMSGN(_("E830: Undo number %ld not found"), step); |
| 772 | 2516 return; |
| 2517 } | |
| 2518 | |
| 758 | 2519 if (closest == closest_start) |
| 753 | 2520 { |
| 758 | 2521 if (step < 0) |
| 2522 MSG(_("Already at oldest change")); | |
| 2523 else | |
| 2524 MSG(_("Already at newest change")); | |
| 753 | 2525 return; |
| 2526 } | |
| 2527 | |
| 758 | 2528 target = closest_seq; |
| 2529 dosec = FALSE; | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2530 dofile = FALSE; |
| 758 | 2531 if (step < 0) |
| 2532 above = TRUE; /* stop above the header */ | |
| 753 | 2533 } |
| 2534 | |
| 2535 /* If we found it: Follow the path to go to where we want to be. */ | |
| 2536 if (uhp != NULL) | |
| 2537 { | |
| 2538 /* | |
| 2539 * First go up the tree as much as needed. | |
| 2540 */ | |
| 2189 | 2541 while (!got_int) |
| 753 | 2542 { |
| 2189 | 2543 /* Do the change warning now, for the same reason as above. */ |
| 2544 change_warning(0); | |
| 2545 | |
| 753 | 2546 uhp = curbuf->b_u_curhead; |
| 2547 if (uhp == NULL) | |
| 2548 uhp = curbuf->b_u_newhead; | |
| 2549 else | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2550 uhp = uhp->uh_next.ptr; |
| 777 | 2551 if (uhp == NULL || uhp->uh_walk != mark |
| 2552 || (uhp->uh_seq == target && !above)) | |
| 753 | 2553 break; |
| 2554 curbuf->b_u_curhead = uhp; | |
| 777 | 2555 u_undoredo(TRUE); |
| 753 | 2556 uhp->uh_walk = nomark; /* don't go back down here */ |
| 2557 } | |
| 2558 | |
| 2559 /* | |
| 758 | 2560 * And now go down the tree (redo), branching off where needed. |
| 753 | 2561 */ |
| 2189 | 2562 while (!got_int) |
| 753 | 2563 { |
| 2189 | 2564 /* Do the change warning now, for the same reason as above. */ |
| 2565 change_warning(0); | |
| 2566 | |
| 2567 uhp = curbuf->b_u_curhead; | |
| 2568 if (uhp == NULL) | |
| 2569 break; | |
| 2570 | |
| 1056 | 2571 /* 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
|
2572 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
|
2573 && 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
|
2574 uhp = uhp->uh_alt_prev.ptr; |
| 1056 | 2575 |
| 753 | 2576 /* Find the last branch with a mark, that's the one. */ |
| 2577 last = uhp; | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2578 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
|
2579 && 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
|
2580 last = last->uh_alt_next.ptr; |
| 753 | 2581 if (last != uhp) |
| 2582 { | |
| 2583 /* Make the used branch the first entry in the list of | |
| 2584 * 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
|
2585 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
|
2586 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
|
2587 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
|
2588 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
|
2589 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
|
2590 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
|
2591 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
|
2592 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
|
2593 uhp->uh_alt_prev.ptr = last; |
| 753 | 2594 |
| 2181 | 2595 if (curbuf->b_u_oldhead == uhp) |
| 2596 curbuf->b_u_oldhead = last; | |
| 753 | 2597 uhp = last; |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2598 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
|
2599 uhp->uh_next.ptr->uh_prev.ptr = uhp; |
| 753 | 2600 } |
| 758 | 2601 curbuf->b_u_curhead = uhp; |
| 753 | 2602 |
| 2603 if (uhp->uh_walk != mark) | |
| 2604 break; /* must have reached the target */ | |
| 2605 | |
| 758 | 2606 /* Stop when going backwards in time and didn't find the exact |
| 2607 * header we were looking for. */ | |
| 2608 if (uhp->uh_seq == target && above) | |
| 798 | 2609 { |
| 2610 curbuf->b_u_seq_cur = target - 1; | |
| 758 | 2611 break; |
| 798 | 2612 } |
| 758 | 2613 |
| 777 | 2614 u_undoredo(FALSE); |
| 753 | 2615 |
| 2616 /* Advance "curhead" to below the header we last used. If it | |
| 2617 * 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
|
2618 if (uhp->uh_prev.ptr == NULL) |
| 753 | 2619 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
|
2620 curbuf->b_u_curhead = uhp->uh_prev.ptr; |
| 794 | 2621 did_undo = FALSE; |
| 753 | 2622 |
| 2623 if (uhp->uh_seq == target) /* found it! */ | |
| 2624 break; | |
| 2625 | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2626 uhp = uhp->uh_prev.ptr; |
| 753 | 2627 if (uhp == NULL || uhp->uh_walk != mark) |
| 2628 { | |
| 777 | 2629 /* Need to redo more but can't find it... */ |
| 753 | 2630 EMSG2(_(e_intern2), "undo_time()"); |
| 2631 break; | |
| 2632 } | |
| 2633 } | |
| 2634 } | |
| 798 | 2635 u_undo_end(did_undo, absolute); |
| 7 | 2636 } |
| 2637 | |
| 2638 /* | |
| 2639 * u_undoredo: common code for undo and redo | |
| 2640 * | |
| 2641 * The lines in the file are replaced by the lines in the entry list at | |
| 2642 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry | |
| 2643 * list for the next undo/redo. | |
| 777 | 2644 * |
| 2645 * When "undo" is TRUE we go up in the tree, when FALSE we go down. | |
| 7 | 2646 */ |
| 2647 static void | |
| 777 | 2648 u_undoredo(undo) |
| 2649 int undo; | |
| 7 | 2650 { |
| 2651 char_u **newarray = NULL; | |
| 2652 linenr_T oldsize; | |
| 2653 linenr_T newsize; | |
| 2654 linenr_T top, bot; | |
| 2655 linenr_T lnum; | |
| 2656 linenr_T newlnum = MAXLNUM; | |
| 2657 long i; | |
| 2658 u_entry_T *uep, *nuep; | |
| 2659 u_entry_T *newlist = NULL; | |
| 2660 int old_flags; | |
| 2661 int new_flags; | |
| 2662 pos_T namedm[NMARKS]; | |
| 692 | 2663 visualinfo_T visualinfo; |
| 7 | 2664 int empty_buffer; /* buffer became empty */ |
| 758 | 2665 u_header_T *curhead = curbuf->b_u_curhead; |
| 7 | 2666 |
| 2189 | 2667 #ifdef FEAT_AUTOCMD |
| 2668 /* Don't want autocommands using the undo structures here, they are | |
| 2669 * invalid till the end. */ | |
| 2670 block_autocmds(); | |
| 2671 #endif | |
| 2672 | |
| 1415 | 2673 #ifdef U_DEBUG |
| 2674 u_check(FALSE); | |
| 2675 #endif | |
| 758 | 2676 old_flags = curhead->uh_flags; |
| 7 | 2677 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) + |
| 2678 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0); | |
| 2679 setpcmark(); | |
| 2680 | |
| 2681 /* | |
| 2682 * save marks before undo/redo | |
| 2683 */ | |
| 2684 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS); | |
| 692 | 2685 visualinfo = curbuf->b_visual; |
| 7 | 2686 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count; |
| 2687 curbuf->b_op_start.col = 0; | |
| 2688 curbuf->b_op_end.lnum = 0; | |
| 2689 curbuf->b_op_end.col = 0; | |
| 2690 | |
| 758 | 2691 for (uep = curhead->uh_entry; uep != NULL; uep = nuep) |
| 7 | 2692 { |
| 2693 top = uep->ue_top; | |
| 2694 bot = uep->ue_bot; | |
| 2695 if (bot == 0) | |
| 2696 bot = curbuf->b_ml.ml_line_count + 1; | |
| 2697 if (top > curbuf->b_ml.ml_line_count || top >= bot | |
| 2698 || bot > curbuf->b_ml.ml_line_count + 1) | |
| 2699 { | |
| 2189 | 2700 #ifdef FEAT_AUTOCMD |
| 2701 unblock_autocmds(); | |
| 2702 #endif | |
| 7 | 2703 EMSG(_("E438: u_undo: line numbers wrong")); |
| 2704 changed(); /* don't want UNCHANGED now */ | |
| 2705 return; | |
| 2706 } | |
| 2707 | |
| 2708 oldsize = bot - top - 1; /* number of lines before undo */ | |
| 2709 newsize = uep->ue_size; /* number of lines after undo */ | |
| 2710 | |
| 2711 if (top < newlnum) | |
| 2712 { | |
| 2713 /* If the saved cursor is somewhere in this undo block, move it to | |
| 2714 * the remembered position. Makes "gwap" put the cursor back | |
| 2715 * where it was. */ | |
| 758 | 2716 lnum = curhead->uh_cursor.lnum; |
| 7 | 2717 if (lnum >= top && lnum <= top + newsize + 1) |
| 2718 { | |
| 758 | 2719 curwin->w_cursor = curhead->uh_cursor; |
| 7 | 2720 newlnum = curwin->w_cursor.lnum - 1; |
| 2721 } | |
| 2722 else | |
| 2723 { | |
| 2724 /* Use the first line that actually changed. Avoids that | |
| 2725 * undoing auto-formatting puts the cursor in the previous | |
| 2726 * line. */ | |
| 2727 for (i = 0; i < newsize && i < oldsize; ++i) | |
| 2728 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0) | |
| 2729 break; | |
| 2730 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL) | |
| 2731 { | |
| 2732 newlnum = top; | |
| 2733 curwin->w_cursor.lnum = newlnum + 1; | |
| 2734 } | |
| 2735 else if (i < newsize) | |
| 2736 { | |
| 2737 newlnum = top + i; | |
| 2738 curwin->w_cursor.lnum = newlnum + 1; | |
| 2739 } | |
| 2740 } | |
| 2741 } | |
| 2742 | |
| 2743 empty_buffer = FALSE; | |
| 2744 | |
| 2745 /* delete the lines between top and bot and save them in newarray */ | |
| 168 | 2746 if (oldsize > 0) |
| 7 | 2747 { |
| 168 | 2748 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
|
2749 sizeof(char_u *) * oldsize)) == NULL) |
| 7 | 2750 { |
| 2751 do_outofmem_msg((long_u)(sizeof(char_u *) * oldsize)); | |
| 2752 /* | |
| 2753 * We have messed up the entry list, repair is impossible. | |
| 2754 * we have to free the rest of the list. | |
| 2755 */ | |
| 2756 while (uep != NULL) | |
| 2757 { | |
| 2758 nuep = uep->ue_next; | |
| 2759 u_freeentry(uep, uep->ue_size); | |
| 2760 uep = nuep; | |
| 2761 } | |
| 2762 break; | |
| 2763 } | |
| 2764 /* delete backwards, it goes faster in most cases */ | |
| 2765 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum) | |
| 2766 { | |
| 2767 /* what can we do when we run out of memory? */ | |
| 2768 if ((newarray[i] = u_save_line(lnum)) == NULL) | |
| 2769 do_outofmem_msg((long_u)0); | |
| 2770 /* remember we deleted the last line in the buffer, and a | |
| 2771 * dummy empty line will be inserted */ | |
| 2772 if (curbuf->b_ml.ml_line_count == 1) | |
| 2773 empty_buffer = TRUE; | |
| 2774 ml_delete(lnum, FALSE); | |
| 2775 } | |
| 2776 } | |
| 414 | 2777 else |
| 2778 newarray = NULL; | |
| 7 | 2779 |
| 2780 /* insert the lines in u_array between top and bot */ | |
| 2781 if (newsize) | |
| 2782 { | |
| 2783 for (lnum = top, i = 0; i < newsize; ++i, ++lnum) | |
| 2784 { | |
| 2785 /* | |
| 2786 * If the file is empty, there is an empty line 1 that we | |
| 2787 * should get rid of, by replacing it with the new line | |
| 2788 */ | |
| 2789 if (empty_buffer && lnum == 0) | |
| 2790 ml_replace((linenr_T)1, uep->ue_array[i], TRUE); | |
| 2791 else | |
| 2792 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
|
2793 vim_free(uep->ue_array[i]); |
| 7 | 2794 } |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
2795 vim_free((char_u *)uep->ue_array); |
| 7 | 2796 } |
| 2797 | |
| 2798 /* adjust marks */ | |
| 2799 if (oldsize != newsize) | |
| 2800 { | |
| 2801 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM, | |
| 2802 (long)newsize - (long)oldsize); | |
| 2803 if (curbuf->b_op_start.lnum > top + oldsize) | |
| 2804 curbuf->b_op_start.lnum += newsize - oldsize; | |
| 2805 if (curbuf->b_op_end.lnum > top + oldsize) | |
| 2806 curbuf->b_op_end.lnum += newsize - oldsize; | |
| 2807 } | |
| 2808 | |
| 2809 changed_lines(top + 1, 0, bot, newsize - oldsize); | |
| 2810 | |
| 2811 /* set '[ and '] mark */ | |
| 2812 if (top + 1 < curbuf->b_op_start.lnum) | |
| 2813 curbuf->b_op_start.lnum = top + 1; | |
| 2814 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) | |
| 2815 curbuf->b_op_end.lnum = top + 1; | |
| 2816 else if (top + newsize > curbuf->b_op_end.lnum) | |
| 2817 curbuf->b_op_end.lnum = top + newsize; | |
| 2818 | |
| 2819 u_newcount += newsize; | |
| 2820 u_oldcount += oldsize; | |
| 2821 uep->ue_size = oldsize; | |
| 2822 uep->ue_array = newarray; | |
| 2823 uep->ue_bot = top + newsize + 1; | |
| 2824 | |
| 2825 /* | |
| 2826 * insert this entry in front of the new entry list | |
| 2827 */ | |
| 2828 nuep = uep->ue_next; | |
| 2829 uep->ue_next = newlist; | |
| 2830 newlist = uep; | |
| 2831 } | |
| 2832 | |
| 758 | 2833 curhead->uh_entry = newlist; |
| 2834 curhead->uh_flags = new_flags; | |
| 7 | 2835 if ((old_flags & UH_EMPTYBUF) && bufempty()) |
| 2836 curbuf->b_ml.ml_flags |= ML_EMPTY; | |
| 2837 if (old_flags & UH_CHANGED) | |
| 2838 changed(); | |
| 2839 else | |
| 33 | 2840 #ifdef FEAT_NETBEANS_INTG |
| 2841 /* per netbeans undo rules, keep it as modified */ | |
| 2842 if (!isNetbeansModified(curbuf)) | |
| 2843 #endif | |
| 7 | 2844 unchanged(curbuf, FALSE); |
| 2845 | |
| 2846 /* | |
| 2847 * restore marks from before undo/redo | |
| 2848 */ | |
| 2849 for (i = 0; i < NMARKS; ++i) | |
| 6616 | 2850 { |
| 758 | 2851 if (curhead->uh_namedm[i].lnum != 0) |
| 2852 curbuf->b_namedm[i] = curhead->uh_namedm[i]; | |
| 6616 | 2853 if (namedm[i].lnum != 0) |
| 758 | 2854 curhead->uh_namedm[i] = namedm[i]; |
| 6616 | 2855 else |
| 2856 curhead->uh_namedm[i].lnum = 0; | |
| 2857 } | |
| 758 | 2858 if (curhead->uh_visual.vi_start.lnum != 0) |
| 692 | 2859 { |
| 758 | 2860 curbuf->b_visual = curhead->uh_visual; |
| 2861 curhead->uh_visual = visualinfo; | |
| 692 | 2862 } |
| 7 | 2863 |
| 2864 /* | |
| 2865 * If the cursor is only off by one line, put it at the same position as | |
| 2866 * before starting the change (for the "o" command). | |
| 2867 * Otherwise the cursor should go to the first undone line. | |
| 2868 */ | |
| 758 | 2869 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum |
| 7 | 2870 && curwin->w_cursor.lnum > 1) |
| 2871 --curwin->w_cursor.lnum; | |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2872 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count) |
| 7 | 2873 { |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2874 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
|
2875 { |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2876 curwin->w_cursor.col = curhead->uh_cursor.col; |
| 7 | 2877 #ifdef FEAT_VIRTUALEDIT |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2878 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
|
2879 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
|
2880 else |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2881 curwin->w_cursor.coladd = 0; |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2882 #endif |
|
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2883 } |
| 7 | 2884 else |
|
2501
c43e99e9baaf
Fix: ml_get errors when using undo with 'virtualedit'.
Bram Moolenaar <bram@vim.org>
parents:
2482
diff
changeset
|
2885 beginline(BL_SOL | BL_FIX); |
| 7 | 2886 } |
| 2887 else | |
| 2888 { | |
| 2889 /* We get here with the current cursor line being past the end (eg | |
| 2890 * after adding lines at the end of the file, and then undoing it). | |
| 2891 * check_cursor() will move the cursor to the last line. Move it to | |
| 2892 * the first column here. */ | |
| 2893 curwin->w_cursor.col = 0; | |
| 2894 #ifdef FEAT_VIRTUALEDIT | |
| 2895 curwin->w_cursor.coladd = 0; | |
| 2896 #endif | |
| 2897 } | |
| 2898 | |
| 2899 /* Make sure the cursor is on an existing line and column. */ | |
| 2900 check_cursor(); | |
| 758 | 2901 |
| 2902 /* Remember where we are for "g-" and ":earlier 10s". */ | |
| 2903 curbuf->b_u_seq_cur = curhead->uh_seq; | |
| 777 | 2904 if (undo) |
| 2905 /* We are below the previous undo. However, to make ":earlier 1s" | |
| 2906 * work we compute this as being just above the just undone change. */ | |
| 2907 --curbuf->b_u_seq_cur; | |
| 2908 | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2909 /* Remember where we are for ":earlier 1f" and ":later 1f". */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2910 if (curhead->uh_save_nr != 0) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2911 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2912 if (undo) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2913 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
|
2914 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2915 curbuf->b_u_save_nr_cur = curhead->uh_save_nr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2916 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
2917 |
| 777 | 2918 /* The timestamp can be the same for multiple changes, just use the one of |
| 2919 * the undone/redone change. */ | |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
2920 curbuf->b_u_time_cur = curhead->uh_time; |
| 2189 | 2921 |
| 2922 #ifdef FEAT_AUTOCMD | |
| 2923 unblock_autocmds(); | |
| 2924 #endif | |
| 1415 | 2925 #ifdef U_DEBUG |
| 2926 u_check(FALSE); | |
| 2927 #endif | |
| 7 | 2928 } |
| 2929 | |
| 2930 /* | |
| 2931 * If we deleted or added lines, report the number of less/more lines. | |
| 2932 * Otherwise, report the number of changes (this may be incorrect | |
| 2933 * in some cases, but it's better than nothing). | |
| 2934 */ | |
| 2935 static void | |
| 798 | 2936 u_undo_end(did_undo, absolute) |
| 794 | 2937 int did_undo; /* just did an undo */ |
| 798 | 2938 int absolute; /* used ":undo N" */ |
| 7 | 2939 { |
| 944 | 2940 char *msgstr; |
| 772 | 2941 u_header_T *uhp; |
| 2942 char_u msgbuf[80]; | |
| 753 | 2943 |
| 7 | 2944 #ifdef FEAT_FOLDING |
| 2945 if ((fdo_flags & FDO_UNDO) && KeyTyped) | |
| 2946 foldOpenCursor(); | |
| 2947 #endif | |
| 753 | 2948 |
| 2949 if (global_busy /* no messages now, wait until global is finished */ | |
| 2950 || !messaging()) /* 'lazyredraw' set, don't do messages now */ | |
| 2951 return; | |
| 2952 | |
| 2953 if (curbuf->b_ml.ml_flags & ML_EMPTY) | |
| 2954 --u_newcount; | |
| 2955 | |
| 2956 u_oldcount -= u_newcount; | |
| 2957 if (u_oldcount == -1) | |
| 944 | 2958 msgstr = N_("more line"); |
| 753 | 2959 else if (u_oldcount < 0) |
| 944 | 2960 msgstr = N_("more lines"); |
| 753 | 2961 else if (u_oldcount == 1) |
| 944 | 2962 msgstr = N_("line less"); |
| 753 | 2963 else if (u_oldcount > 1) |
| 944 | 2964 msgstr = N_("fewer lines"); |
| 753 | 2965 else |
| 2966 { | |
| 2967 u_oldcount = u_newcount; | |
| 2968 if (u_newcount == 1) | |
| 944 | 2969 msgstr = N_("change"); |
| 753 | 2970 else |
| 944 | 2971 msgstr = N_("changes"); |
| 753 | 2972 } |
| 2973 | |
| 772 | 2974 if (curbuf->b_u_curhead != NULL) |
| 794 | 2975 { |
| 798 | 2976 /* For ":undo N" we prefer a "after #N" message. */ |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2977 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL) |
| 798 | 2978 { |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2979 uhp = curbuf->b_u_curhead->uh_next.ptr; |
| 798 | 2980 did_undo = FALSE; |
| 2981 } | |
| 2982 else if (did_undo) | |
| 794 | 2983 uhp = curbuf->b_u_curhead; |
| 2984 else | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
2985 uhp = curbuf->b_u_curhead->uh_next.ptr; |
| 794 | 2986 } |
| 753 | 2987 else |
| 772 | 2988 uhp = curbuf->b_u_newhead; |
| 753 | 2989 |
| 772 | 2990 if (uhp == NULL) |
| 2991 *msgbuf = NUL; | |
| 2992 else | |
| 2993 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time); | |
| 2994 | |
|
2282
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2995 #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
|
2996 { |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2997 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
|
2998 |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
2999 FOR_ALL_WINDOWS(wp) |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3000 { |
|
2378
85b7dc8da5eb
Add the 'concealcursor' option to decide when the cursor line is to be
Bram Moolenaar <bram@vim.org>
parents:
2367
diff
changeset
|
3001 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
|
3002 redraw_win_later(wp, NOT_VALID); |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3003 } |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3004 } |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3005 #endif |
|
a888ed7ba375
Make updating text for conceal mode simpler. A few compiler warning fixes.
Bram Moolenaar <bram@vim.org>
parents:
2281
diff
changeset
|
3006 |
| 794 | 3007 smsg((char_u *)_("%ld %s; %s #%ld %s"), |
| 777 | 3008 u_oldcount < 0 ? -u_oldcount : u_oldcount, |
| 944 | 3009 _(msgstr), |
| 794 | 3010 did_undo ? _("before") : _("after"), |
| 3011 uhp == NULL ? 0L : uhp->uh_seq, | |
| 3012 msgbuf); | |
| 7 | 3013 } |
| 3014 | |
| 3015 /* | |
| 3016 * u_sync: stop adding to the current entry list | |
| 3017 */ | |
| 3018 void | |
| 825 | 3019 u_sync(force) |
| 3020 int force; /* Also sync when no_u_sync is set. */ | |
| 7 | 3021 { |
| 825 | 3022 /* Skip it when already synced or syncing is disabled. */ |
| 3023 if (curbuf->b_u_synced || (!force && no_u_sync > 0)) | |
| 3024 return; | |
| 7 | 3025 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) |
| 3026 if (im_is_preediting()) | |
| 3027 return; /* XIM is busy, don't break an undo sequence */ | |
| 3028 #endif | |
| 5446 | 3029 if (get_undolevel() < 0) |
| 7 | 3030 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */ |
| 3031 else | |
| 3032 { | |
| 3033 u_getbot(); /* compute ue_bot of previous u_save */ | |
| 3034 curbuf->b_u_curhead = NULL; | |
| 3035 } | |
| 3036 } | |
| 3037 | |
| 3038 /* | |
| 772 | 3039 * ":undolist": List the leafs of the undo tree |
| 3040 */ | |
| 3041 void | |
| 3042 ex_undolist(eap) | |
| 2181 | 3043 exarg_T *eap UNUSED; |
| 772 | 3044 { |
| 3045 garray_T ga; | |
| 3046 u_header_T *uhp; | |
| 3047 int mark; | |
| 3048 int nomark; | |
| 3049 int changes = 1; | |
| 3050 int i; | |
| 3051 | |
| 3052 /* | |
| 3053 * 1: walk the tree to find all leafs, put the info in "ga". | |
| 3054 * 2: sort the lines | |
| 3055 * 3: display the list | |
| 3056 */ | |
| 3057 mark = ++lastmark; | |
| 3058 nomark = ++lastmark; | |
| 3059 ga_init2(&ga, (int)sizeof(char *), 20); | |
| 3060 | |
| 3061 uhp = curbuf->b_u_oldhead; | |
| 3062 while (uhp != NULL) | |
| 3063 { | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3064 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark |
| 777 | 3065 && uhp->uh_walk != mark) |
| 772 | 3066 { |
| 3067 if (ga_grow(&ga, 1) == FAIL) | |
| 3068 break; | |
| 3069 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ", | |
| 3070 uhp->uh_seq, changes); | |
| 3071 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff), | |
| 3072 uhp->uh_time); | |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3073 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
|
3074 { |
| 2627 | 3075 while (STRLEN(IObuff) < 33) |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3076 STRCAT(IObuff, " "); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3077 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
|
3078 " %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
|
3079 } |
| 772 | 3080 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff); |
| 3081 } | |
| 3082 | |
| 3083 uhp->uh_walk = mark; | |
| 3084 | |
| 3085 /* go down in the tree if we haven't been there */ | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3086 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
|
3087 && uhp->uh_prev.ptr->uh_walk != mark) |
| 772 | 3088 { |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3089 uhp = uhp->uh_prev.ptr; |
| 772 | 3090 ++changes; |
| 3091 } | |
| 3092 | |
| 3093 /* 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
|
3094 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
|
3095 && 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
|
3096 && 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
|
3097 uhp = uhp->uh_alt_next.ptr; |
| 772 | 3098 |
| 3099 /* go up in the tree if we haven't been there and we are at the | |
| 3100 * 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
|
3101 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
|
3102 && 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
|
3103 && uhp->uh_next.ptr->uh_walk != mark) |
| 772 | 3104 { |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3105 uhp = uhp->uh_next.ptr; |
| 772 | 3106 --changes; |
| 3107 } | |
| 3108 | |
| 3109 else | |
| 3110 { | |
| 3111 /* need to backtrack; mark this node as done */ | |
| 3112 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
|
3113 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
|
3114 uhp = uhp->uh_alt_prev.ptr; |
| 772 | 3115 else |
| 3116 { | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3117 uhp = uhp->uh_next.ptr; |
| 772 | 3118 --changes; |
| 3119 } | |
| 3120 } | |
| 3121 } | |
| 3122 | |
| 3123 if (ga.ga_len == 0) | |
| 3124 MSG(_("Nothing to undo")); | |
| 3125 else | |
| 3126 { | |
| 3127 sort_strings((char_u **)ga.ga_data, ga.ga_len); | |
| 3128 | |
| 3129 msg_start(); | |
| 2627 | 3130 msg_puts_attr((char_u *)_("number changes when saved"), |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3131 hl_attr(HLF_T)); |
| 772 | 3132 for (i = 0; i < ga.ga_len && !got_int; ++i) |
| 3133 { | |
| 3134 msg_putchar('\n'); | |
| 3135 if (got_int) | |
| 3136 break; | |
| 3137 msg_puts(((char_u **)ga.ga_data)[i]); | |
| 3138 } | |
| 3139 msg_end(); | |
| 3140 | |
| 3141 ga_clear_strings(&ga); | |
| 3142 } | |
| 3143 } | |
| 3144 | |
| 3145 /* | |
| 3146 * Put the timestamp of an undo header in "buf[buflen]" in a nice format. | |
| 3147 */ | |
| 3148 static void | |
| 3149 u_add_time(buf, buflen, tt) | |
| 3150 char_u *buf; | |
| 3151 size_t buflen; | |
| 3152 time_t tt; | |
| 3153 { | |
| 3154 #ifdef HAVE_STRFTIME | |
| 3155 struct tm *curtime; | |
| 3156 | |
| 3157 if (time(NULL) - tt >= 100) | |
| 3158 { | |
| 3159 curtime = localtime(&tt); | |
| 2627 | 3160 if (time(NULL) - tt < (60L * 60L * 12L)) |
| 3161 /* within 12 hours */ | |
| 3162 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime); | |
| 3163 else | |
| 3751 | 3164 /* longer ago */ |
| 2689 | 3165 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime); |
| 772 | 3166 } |
| 3167 else | |
| 3168 #endif | |
| 835 | 3169 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"), |
| 772 | 3170 (long)(time(NULL) - tt)); |
| 3171 } | |
| 3172 | |
| 3173 /* | |
| 697 | 3174 * ":undojoin": continue adding to the last entry list |
| 3175 */ | |
| 3176 void | |
| 3177 ex_undojoin(eap) | |
| 2181 | 3178 exarg_T *eap UNUSED; |
| 697 | 3179 { |
| 839 | 3180 if (curbuf->b_u_newhead == NULL) |
| 3181 return; /* nothing changed before */ | |
| 3182 if (curbuf->b_u_curhead != NULL) | |
| 3183 { | |
| 3184 EMSG(_("E790: undojoin is not allowed after undo")); | |
| 3185 return; | |
| 3186 } | |
| 697 | 3187 if (!curbuf->b_u_synced) |
| 3188 return; /* already unsynced */ | |
| 5446 | 3189 if (get_undolevel() < 0) |
| 697 | 3190 return; /* no entries, nothing to do */ |
| 3191 else | |
| 3192 { | |
| 3193 /* Go back to the last entry */ | |
| 3194 curbuf->b_u_curhead = curbuf->b_u_newhead; | |
| 3195 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */ | |
| 3196 } | |
| 3197 } | |
| 3198 | |
| 3199 /* | |
|
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2378
diff
changeset
|
3200 * Called after writing or reloading the file and setting b_changed to FALSE. |
| 7 | 3201 * Now an undo means that the buffer is modified. |
| 3202 */ | |
| 3203 void | |
| 3204 u_unchanged(buf) | |
| 3205 buf_T *buf; | |
| 3206 { | |
| 758 | 3207 u_unch_branch(buf->b_u_oldhead); |
| 3208 buf->b_did_warn = FALSE; | |
| 3209 } | |
| 3210 | |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3211 /* |
|
2482
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3212 * 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
|
3213 * 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
|
3214 */ |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3215 void |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3216 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
|
3217 { |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3218 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
|
3219 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
|
3220 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
|
3221 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3222 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
|
3223 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
|
3224 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3225 /* 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
|
3226 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
|
3227 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
|
3228 return; |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3229 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3230 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
|
3231 && 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
|
3232 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
|
3233 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
|
3234 { |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3235 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
|
3236 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
|
3237 return; |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3238 } |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3239 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
|
3240 { |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3241 /* 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
|
3242 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
|
3243 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
|
3244 } |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3245 } |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3246 |
|
88751831fa0a
When undoing a reload, move the cursor to the first changed line.
Bram Moolenaar <bram@vim.org>
parents:
2410
diff
changeset
|
3247 /* |
|
2281
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3248 * 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
|
3249 * used for "u". |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3250 */ |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3251 void |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3252 u_update_save_nr(buf) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3253 buf_T *buf; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3254 { |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3255 u_header_T *uhp; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3256 |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3257 ++buf->b_u_save_nr_last; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3258 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
|
3259 uhp = buf->b_u_curhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3260 if (uhp != NULL) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3261 uhp = uhp->uh_next.ptr; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3262 else |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3263 uhp = buf->b_u_newhead; |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3264 if (uhp != NULL) |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3265 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
|
3266 } |
|
e41433ea71df
Added ":earlier 1f" and ":later 1f".
Bram Moolenaar <bram@vim.org>
parents:
2280
diff
changeset
|
3267 |
| 758 | 3268 static void |
| 3269 u_unch_branch(uhp) | |
| 3270 u_header_T *uhp; | |
| 3271 { | |
| 753 | 3272 u_header_T *uh; |
| 7 | 3273 |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3274 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr) |
| 758 | 3275 { |
| 7 | 3276 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
|
3277 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
|
3278 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */ |
| 758 | 3279 } |
| 7 | 3280 } |
| 3281 | |
| 3282 /* | |
| 3283 * Get pointer to last added entry. | |
| 3284 * If it's not valid, give an error message and return NULL. | |
| 3285 */ | |
| 3286 static u_entry_T * | |
| 3287 u_get_headentry() | |
| 3288 { | |
| 3289 if (curbuf->b_u_newhead == NULL || curbuf->b_u_newhead->uh_entry == NULL) | |
| 3290 { | |
| 3291 EMSG(_("E439: undo list corrupt")); | |
| 3292 return NULL; | |
| 3293 } | |
| 3294 return curbuf->b_u_newhead->uh_entry; | |
| 3295 } | |
| 3296 | |
| 3297 /* | |
| 3298 * u_getbot(): compute the line number of the previous u_save | |
| 3299 * It is called only when b_u_synced is FALSE. | |
| 3300 */ | |
| 3301 static void | |
| 3302 u_getbot() | |
| 3303 { | |
| 3304 u_entry_T *uep; | |
| 3305 linenr_T extra; | |
| 3306 | |
| 3307 uep = u_get_headentry(); /* check for corrupt undo list */ | |
| 3308 if (uep == NULL) | |
| 3309 return; | |
| 3310 | |
| 3311 uep = curbuf->b_u_newhead->uh_getbot_entry; | |
| 3312 if (uep != NULL) | |
| 3313 { | |
| 3314 /* | |
| 3315 * the new ue_bot is computed from the number of lines that has been | |
| 3316 * inserted (0 - deleted) since calling u_save. This is equal to the | |
| 3317 * old line count subtracted from the current line count. | |
| 3318 */ | |
| 3319 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount; | |
| 3320 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra; | |
| 3321 if (uep->ue_bot < 1 || uep->ue_bot > curbuf->b_ml.ml_line_count) | |
| 3322 { | |
| 3323 EMSG(_("E440: undo line missing")); | |
| 3324 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will | |
| 3325 * get all the old lines back | |
| 3326 * without deleting the current | |
| 3327 * ones */ | |
| 3328 } | |
| 3329 | |
| 3330 curbuf->b_u_newhead->uh_getbot_entry = NULL; | |
| 3331 } | |
| 3332 | |
| 3333 curbuf->b_u_synced = TRUE; | |
| 3334 } | |
| 3335 | |
| 3336 /* | |
| 1415 | 3337 * Free one header "uhp" and its entry list and adjust the pointers. |
| 7 | 3338 */ |
| 3339 static void | |
| 758 | 3340 u_freeheader(buf, uhp, uhpp) |
| 168 | 3341 buf_T *buf; |
| 753 | 3342 u_header_T *uhp; |
| 3343 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
| 7 | 3344 { |
| 1415 | 3345 u_header_T *uhap; |
| 3346 | |
| 753 | 3347 /* When there is an alternate redo list free that branch completely, |
| 3348 * 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
|
3349 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
|
3350 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp); |
| 7 | 3351 |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3352 if (uhp->uh_alt_prev.ptr != NULL) |
|
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3353 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
| 7 | 3354 |
| 753 | 3355 /* 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
|
3356 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
|
3357 buf->b_u_oldhead = uhp->uh_prev.ptr; |
| 7 | 3358 else |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3359 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr; |
| 7 | 3360 |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3361 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
|
3362 buf->b_u_newhead = uhp->uh_next.ptr; |
| 7 | 3363 else |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3364 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
|
3365 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
|
3366 uhap->uh_next.ptr = uhp->uh_next.ptr; |
| 7 | 3367 |
| 753 | 3368 u_freeentries(buf, uhp, uhpp); |
| 3369 } | |
| 3370 | |
| 3371 /* | |
| 758 | 3372 * Free an alternate branch and any following alternate branches. |
| 753 | 3373 */ |
| 3374 static void | |
| 3375 u_freebranch(buf, uhp, uhpp) | |
| 3376 buf_T *buf; | |
| 3377 u_header_T *uhp; | |
| 3378 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
| 3379 { | |
| 3380 u_header_T *tofree, *next; | |
| 3381 | |
| 1440 | 3382 /* If this is the top branch we may need to use u_freeheader() to update |
| 3383 * all the pointers. */ | |
| 3384 if (uhp == buf->b_u_oldhead) | |
| 3385 { | |
| 5448 | 3386 while (buf->b_u_oldhead != NULL) |
| 3387 u_freeheader(buf, buf->b_u_oldhead, uhpp); | |
| 1440 | 3388 return; |
| 3389 } | |
| 3390 | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3391 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
|
3392 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL; |
| 753 | 3393 |
| 3394 next = uhp; | |
| 3395 while (next != NULL) | |
| 3396 { | |
| 3397 tofree = next; | |
|
2242
bc4685345719
Don't use pointers to store numbers, use a union.
Bram Moolenaar <bram@vim.org>
parents:
2239
diff
changeset
|
3398 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
|
3399 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
|
3400 next = tofree->uh_prev.ptr; |
| 753 | 3401 u_freeentries(buf, tofree, uhpp); |
| 3402 } | |
| 3403 } | |
| 3404 | |
| 3405 /* | |
| 3406 * Free all the undo entries for one header and the header itself. | |
| 3407 * This means that "uhp" is invalid when returning. | |
| 3408 */ | |
| 3409 static void | |
| 3410 u_freeentries(buf, uhp, uhpp) | |
| 3411 buf_T *buf; | |
| 3412 u_header_T *uhp; | |
| 3413 u_header_T **uhpp; /* if not NULL reset when freeing this header */ | |
| 3414 { | |
| 3415 u_entry_T *uep, *nuep; | |
| 3416 | |
| 3417 /* Check for pointers to the header that become invalid now. */ | |
| 3418 if (buf->b_u_curhead == uhp) | |
| 3419 buf->b_u_curhead = NULL; | |
| 1415 | 3420 if (buf->b_u_newhead == uhp) |
| 3421 buf->b_u_newhead = NULL; /* freeing the newest entry */ | |
| 753 | 3422 if (uhpp != NULL && uhp == *uhpp) |
| 3423 *uhpp = NULL; | |
| 3424 | |
| 3425 for (uep = uhp->uh_entry; uep != NULL; uep = nuep) | |
| 3426 { | |
| 3427 nuep = uep->ue_next; | |
| 3428 u_freeentry(uep, uep->ue_size); | |
| 3429 } | |
| 3430 | |
| 1415 | 3431 #ifdef U_DEBUG |
| 3432 uhp->uh_magic = 0; | |
| 3433 #endif | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3434 vim_free((char_u *)uhp); |
| 168 | 3435 --buf->b_u_numhead; |
| 7 | 3436 } |
| 3437 | |
| 3438 /* | |
| 3439 * free entry 'uep' and 'n' lines in uep->ue_array[] | |
| 3440 */ | |
| 3441 static void | |
| 3442 u_freeentry(uep, n) | |
| 3443 u_entry_T *uep; | |
| 3444 long n; | |
| 3445 { | |
| 414 | 3446 while (n > 0) |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3447 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
|
3448 vim_free((char_u *)uep->ue_array); |
| 1415 | 3449 #ifdef U_DEBUG |
| 3450 uep->ue_magic = 0; | |
| 3451 #endif | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3452 vim_free((char_u *)uep); |
| 7 | 3453 } |
| 3454 | |
| 3455 /* | |
| 3456 * invalidate the undo buffer; called when storage has already been released | |
| 3457 */ | |
| 3458 void | |
| 3459 u_clearall(buf) | |
| 3460 buf_T *buf; | |
| 3461 { | |
| 3462 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL; | |
| 3463 buf->b_u_synced = TRUE; | |
| 3464 buf->b_u_numhead = 0; | |
| 3465 buf->b_u_line_ptr = NULL; | |
| 3466 buf->b_u_line_lnum = 0; | |
| 3467 } | |
| 3468 | |
| 3469 /* | |
| 3470 * save the line "lnum" for the "U" command | |
| 3471 */ | |
| 3472 void | |
| 3473 u_saveline(lnum) | |
| 3474 linenr_T lnum; | |
| 3475 { | |
| 3476 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */ | |
| 3477 return; | |
| 356 | 3478 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) /* should never happen */ |
| 7 | 3479 return; |
| 3480 u_clearline(); | |
| 3481 curbuf->b_u_line_lnum = lnum; | |
| 3482 if (curwin->w_cursor.lnum == lnum) | |
| 3483 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
| 3484 else | |
| 3485 curbuf->b_u_line_colnr = 0; | |
| 3486 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL) | |
| 3487 do_outofmem_msg((long_u)0); | |
| 3488 } | |
| 3489 | |
| 3490 /* | |
| 3491 * clear the line saved for the "U" command | |
| 3492 * (this is used externally for crossing a line while in insert mode) | |
| 3493 */ | |
| 3494 void | |
| 3495 u_clearline() | |
| 3496 { | |
| 3497 if (curbuf->b_u_line_ptr != NULL) | |
| 3498 { | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3499 vim_free(curbuf->b_u_line_ptr); |
| 7 | 3500 curbuf->b_u_line_ptr = NULL; |
| 3501 curbuf->b_u_line_lnum = 0; | |
| 3502 } | |
| 3503 } | |
| 3504 | |
| 3505 /* | |
| 3506 * Implementation of the "U" command. | |
| 3507 * Differentiation from vi: "U" can be undone with the next "U". | |
| 3508 * 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
|
3509 * Careful: may trigger autocommands that reload the buffer. |
| 7 | 3510 */ |
| 3511 void | |
| 3512 u_undoline() | |
| 3513 { | |
| 3514 colnr_T t; | |
| 3515 char_u *oldp; | |
| 3516 | |
| 3517 if (undo_off) | |
| 3518 return; | |
| 3519 | |
| 1534 | 3520 if (curbuf->b_u_line_ptr == NULL |
| 3521 || curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count) | |
| 7 | 3522 { |
| 3523 beep_flush(); | |
| 3524 return; | |
| 3525 } | |
| 1534 | 3526 |
| 3527 /* first save the line for the 'u' command */ | |
| 7 | 3528 if (u_savecommon(curbuf->b_u_line_lnum - 1, |
|
2394
a3aca345aafa
Add the 'undoreload' option to be able to undo a file reload.
Bram Moolenaar <bram@vim.org>
parents:
2378
diff
changeset
|
3529 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL) |
| 7 | 3530 return; |
| 3531 oldp = u_save_line(curbuf->b_u_line_lnum); | |
| 3532 if (oldp == NULL) | |
| 3533 { | |
| 3534 do_outofmem_msg((long_u)0); | |
| 3535 return; | |
| 3536 } | |
| 3537 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE); | |
| 3538 changed_bytes(curbuf->b_u_line_lnum, 0); | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3539 vim_free(curbuf->b_u_line_ptr); |
| 7 | 3540 curbuf->b_u_line_ptr = oldp; |
| 3541 | |
| 3542 t = curbuf->b_u_line_colnr; | |
| 3543 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum) | |
| 3544 curbuf->b_u_line_colnr = curwin->w_cursor.col; | |
| 3545 curwin->w_cursor.col = t; | |
| 3546 curwin->w_cursor.lnum = curbuf->b_u_line_lnum; | |
| 1534 | 3547 check_cursor_col(); |
| 7 | 3548 } |
| 3549 | |
| 3550 /* | |
| 168 | 3551 * Free all allocated memory blocks for the buffer 'buf'. |
| 3552 */ | |
| 3553 void | |
| 3554 u_blockfree(buf) | |
| 3555 buf_T *buf; | |
| 3556 { | |
| 753 | 3557 while (buf->b_u_oldhead != NULL) |
| 758 | 3558 u_freeheader(buf, buf->b_u_oldhead, NULL); |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3559 vim_free(buf->b_u_line_ptr); |
| 7 | 3560 } |
| 3561 | |
| 3562 /* | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3563 * u_save_line(): allocate memory and copy line 'lnum' into it. |
|
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3564 * Returns NULL when out of memory. |
| 7 | 3565 */ |
| 3566 static char_u * | |
| 3567 u_save_line(lnum) | |
| 3568 linenr_T lnum; | |
| 3569 { | |
|
2230
290ee42cae85
Remove old and unused method to allocate memory for undo.
Bram Moolenaar <bram@vim.org>
parents:
2229
diff
changeset
|
3570 return vim_strsave(ml_get(lnum)); |
| 7 | 3571 } |
| 3572 | |
| 3573 /* | |
| 3574 * Check if the 'modified' flag is set, or 'ff' has changed (only need to | |
| 3575 * check the first character, because it can only be "dos", "unix" or "mac"). | |
| 3576 * "nofile" and "scratch" type buffers are considered to always be unchanged. | |
| 3577 */ | |
| 3578 int | |
| 3579 bufIsChanged(buf) | |
| 3580 buf_T *buf; | |
| 3581 { | |
| 3582 return | |
| 3583 #ifdef FEAT_QUICKFIX | |
| 3584 !bt_dontwrite(buf) && | |
| 3585 #endif | |
| 2685 | 3586 (buf->b_changed || file_ff_differs(buf, TRUE)); |
| 7 | 3587 } |
| 3588 | |
| 3589 int | |
| 3590 curbufIsChanged() | |
| 3591 { | |
| 3592 return | |
| 3593 #ifdef FEAT_QUICKFIX | |
| 3594 !bt_dontwrite(curbuf) && | |
| 3595 #endif | |
| 2685 | 3596 (curbuf->b_changed || file_ff_differs(curbuf, TRUE)); |
| 7 | 3597 } |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3598 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3599 #if defined(FEAT_EVAL) || defined(PROTO) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3600 /* |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3601 * For undotree(): Append the list of undo blocks at "first_uhp" to "list". |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3602 * Recursive. |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3603 */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3604 void |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3605 u_eval_tree(first_uhp, list) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3606 u_header_T *first_uhp; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3607 list_T *list; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3608 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3609 u_header_T *uhp = first_uhp; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3610 dict_T *dict; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3611 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3612 while (uhp != NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3613 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3614 dict = dict_alloc(); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3615 if (dict == NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3616 return; |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3617 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
|
3618 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL); |
|
2280
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3619 if (uhp == curbuf->b_u_newhead) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
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diff
changeset
|
3620 dict_add_nr_str(dict, "newhead", 1, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3621 if (uhp == curbuf->b_u_curhead) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3622 dict_add_nr_str(dict, "curhead", 1, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3623 if (uhp->uh_save_nr > 0) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3624 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3625 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3626 if (uhp->uh_alt_next.ptr != NULL) |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3627 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3628 list_T *alt_list = list_alloc(); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3629 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3630 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
|
3631 { |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3632 /* Recursive call to add alternate undo tree. */ |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3633 u_eval_tree(uhp->uh_alt_next.ptr, alt_list); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3634 dict_add_list(dict, "alt", alt_list); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3635 } |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3636 } |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
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parents:
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diff
changeset
|
3637 |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
3638 list_append_dict(list, dict); |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
2271
diff
changeset
|
3639 uhp = uhp->uh_prev.ptr; |
|
941ff1cd317a
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3640 } |
|
941ff1cd317a
Add file save counter to undo information. Add undotree() function.
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
3641 } |
|
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parents:
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diff
changeset
|
3642 #endif |