Mercurial > vim
annotate src/memline.c @ 15285:f6fd8f8a6583
Added tag v8.1.0650 for changeset c31e4b1fa4fd9645782afdfe48e1bf0df3253340
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Fri, 28 Dec 2018 18:45:05 +0100 |
parents | 27783a6f430b |
children | ba6f0f1bb9d0 |
rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
7 | 2 * |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 | |
10 /* for debugging */ | |
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11 /* #define CHECK(c, s) do { if (c) EMSG(s); } while (0) */ |
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12 #define CHECK(c, s) do { /**/ } while (0) |
7 | 13 |
14 /* | |
15 * memline.c: Contains the functions for appending, deleting and changing the | |
625 | 16 * text lines. The memfile functions are used to store the information in |
17 * blocks of memory, backed up by a file. The structure of the information is | |
18 * a tree. The root of the tree is a pointer block. The leaves of the tree | |
19 * are data blocks. In between may be several layers of pointer blocks, | |
20 * forming branches. | |
7 | 21 * |
22 * Three types of blocks are used: | |
23 * - Block nr 0 contains information for recovery | |
24 * - Pointer blocks contain list of pointers to other blocks. | |
25 * - Data blocks contain the actual text. | |
26 * | |
27 * Block nr 0 contains the block0 structure (see below). | |
28 * | |
29 * Block nr 1 is the first pointer block. It is the root of the tree. | |
30 * Other pointer blocks are branches. | |
31 * | |
32 * If a line is too big to fit in a single page, the block containing that | |
33 * line is made big enough to hold the line. It may span several pages. | |
34 * Otherwise all blocks are one page. | |
35 * | |
36 * A data block that was filled when starting to edit a file and was not | |
37 * changed since then, can have a negative block number. This means that it | |
38 * has not yet been assigned a place in the file. When recovering, the lines | |
39 * in this data block can be read from the original file. When the block is | |
40 * changed (lines appended/deleted/changed) or when it is flushed it gets a | |
41 * positive number. Use mf_trans_del() to get the new number, before calling | |
42 * mf_get(). | |
43 */ | |
44 | |
45 #include "vim.h" | |
46 | |
47 #ifndef UNIX /* it's in os_unix.h for Unix */ | |
48 # include <time.h> | |
49 #endif | |
50 | |
1030 | 51 #if defined(SASC) || defined(__amigaos4__) |
7 | 52 # include <proto/dos.h> /* for Open() and Close() */ |
53 #endif | |
54 | |
55 typedef struct block0 ZERO_BL; /* contents of the first block */ | |
56 typedef struct pointer_block PTR_BL; /* contents of a pointer block */ | |
57 typedef struct data_block DATA_BL; /* contents of a data block */ | |
58 typedef struct pointer_entry PTR_EN; /* block/line-count pair */ | |
59 | |
2267 | 60 #define DATA_ID (('d' << 8) + 'a') /* data block id */ |
61 #define PTR_ID (('p' << 8) + 't') /* pointer block id */ | |
62 #define BLOCK0_ID0 'b' /* block 0 id 0 */ | |
63 #define BLOCK0_ID1 '0' /* block 0 id 1 */ | |
64 #define BLOCK0_ID1_C0 'c' /* block 0 id 1 'cm' 0 */ | |
65 #define BLOCK0_ID1_C1 'C' /* block 0 id 1 'cm' 1 */ | |
6122 | 66 #define BLOCK0_ID1_C2 'd' /* block 0 id 1 'cm' 2 */ |
67 | |
68 #if defined(FEAT_CRYPT) | |
69 static int id1_codes[] = { | |
70 BLOCK0_ID1_C0, /* CRYPT_M_ZIP */ | |
71 BLOCK0_ID1_C1, /* CRYPT_M_BF */ | |
72 BLOCK0_ID1_C2, /* CRYPT_M_BF2 */ | |
73 }; | |
74 #endif | |
7 | 75 |
76 /* | |
77 * pointer to a block, used in a pointer block | |
78 */ | |
79 struct pointer_entry | |
80 { | |
81 blocknr_T pe_bnum; /* block number */ | |
82 linenr_T pe_line_count; /* number of lines in this branch */ | |
83 linenr_T pe_old_lnum; /* lnum for this block (for recovery) */ | |
84 int pe_page_count; /* number of pages in block pe_bnum */ | |
85 }; | |
86 | |
87 /* | |
88 * A pointer block contains a list of branches in the tree. | |
89 */ | |
90 struct pointer_block | |
91 { | |
92 short_u pb_id; /* ID for pointer block: PTR_ID */ | |
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93 short_u pb_count; /* number of pointers in this block */ |
7 | 94 short_u pb_count_max; /* maximum value for pb_count */ |
95 PTR_EN pb_pointer[1]; /* list of pointers to blocks (actually longer) | |
96 * followed by empty space until end of page */ | |
97 }; | |
98 | |
99 /* | |
100 * A data block is a leaf in the tree. | |
101 * | |
102 * The text of the lines is at the end of the block. The text of the first line | |
103 * in the block is put at the end, the text of the second line in front of it, | |
104 * etc. Thus the order of the lines is the opposite of the line number. | |
105 */ | |
106 struct data_block | |
107 { | |
108 short_u db_id; /* ID for data block: DATA_ID */ | |
109 unsigned db_free; /* free space available */ | |
110 unsigned db_txt_start; /* byte where text starts */ | |
111 unsigned db_txt_end; /* byte just after data block */ | |
112 linenr_T db_line_count; /* number of lines in this block */ | |
113 unsigned db_index[1]; /* index for start of line (actually bigger) | |
114 * followed by empty space upto db_txt_start | |
115 * followed by the text in the lines until | |
116 * end of page */ | |
117 }; | |
118 | |
119 /* | |
120 * The low bits of db_index hold the actual index. The topmost bit is | |
121 * used for the global command to be able to mark a line. | |
122 * This method is not clean, but otherwise there would be at least one extra | |
123 * byte used for each line. | |
124 * The mark has to be in this place to keep it with the correct line when other | |
125 * lines are inserted or deleted. | |
126 */ | |
127 #define DB_MARKED ((unsigned)1 << ((sizeof(unsigned) * 8) - 1)) | |
128 #define DB_INDEX_MASK (~DB_MARKED) | |
129 | |
130 #define INDEX_SIZE (sizeof(unsigned)) /* size of one db_index entry */ | |
131 #define HEADER_SIZE (sizeof(DATA_BL) - INDEX_SIZE) /* size of data block header */ | |
132 | |
39 | 133 #define B0_FNAME_SIZE_ORG 900 /* what it was in older versions */ |
2267 | 134 #define B0_FNAME_SIZE_NOCRYPT 898 /* 2 bytes used for other things */ |
135 #define B0_FNAME_SIZE_CRYPT 890 /* 10 bytes used for other things */ | |
39 | 136 #define B0_UNAME_SIZE 40 |
137 #define B0_HNAME_SIZE 40 | |
7 | 138 /* |
139 * Restrict the numbers to 32 bits, otherwise most compilers will complain. | |
140 * This won't detect a 64 bit machine that only swaps a byte in the top 32 | |
141 * bits, but that is crazy anyway. | |
142 */ | |
143 #define B0_MAGIC_LONG 0x30313233L | |
144 #define B0_MAGIC_INT 0x20212223L | |
145 #define B0_MAGIC_SHORT 0x10111213L | |
146 #define B0_MAGIC_CHAR 0x55 | |
147 | |
148 /* | |
149 * Block zero holds all info about the swap file. | |
150 * | |
151 * NOTE: DEFINITION OF BLOCK 0 SHOULD NOT CHANGE! It would make all existing | |
152 * swap files unusable! | |
153 * | |
154 * If size of block0 changes anyway, adjust MIN_SWAP_PAGE_SIZE in vim.h!! | |
155 * | |
1228 | 156 * This block is built up of single bytes, to make it portable across |
7 | 157 * different machines. b0_magic_* is used to check the byte order and size of |
158 * variables, because the rest of the swap file is not portable. | |
159 */ | |
160 struct block0 | |
161 { | |
2267 | 162 char_u b0_id[2]; /* id for block 0: BLOCK0_ID0 and BLOCK0_ID1, |
6122 | 163 * BLOCK0_ID1_C0, BLOCK0_ID1_C1, etc. */ |
7 | 164 char_u b0_version[10]; /* Vim version string */ |
165 char_u b0_page_size[4];/* number of bytes per page */ | |
166 char_u b0_mtime[4]; /* last modification time of file */ | |
167 char_u b0_ino[4]; /* inode of b0_fname */ | |
168 char_u b0_pid[4]; /* process id of creator (or 0) */ | |
169 char_u b0_uname[B0_UNAME_SIZE]; /* name of user (uid if no name) */ | |
170 char_u b0_hname[B0_HNAME_SIZE]; /* host name (if it has a name) */ | |
39 | 171 char_u b0_fname[B0_FNAME_SIZE_ORG]; /* name of file being edited */ |
7 | 172 long b0_magic_long; /* check for byte order of long */ |
173 int b0_magic_int; /* check for byte order of int */ | |
174 short b0_magic_short; /* check for byte order of short */ | |
175 char_u b0_magic_char; /* check for last char */ | |
176 }; | |
39 | 177 |
178 /* | |
625 | 179 * Note: b0_dirty and b0_flags are put at the end of the file name. For very |
39 | 180 * long file names in older versions of Vim they are invalid. |
181 * The 'fileencoding' comes before b0_flags, with a NUL in front. But only | |
182 * when there is room, for very long file names it's omitted. | |
183 */ | |
184 #define B0_DIRTY 0x55 | |
2267 | 185 #define b0_dirty b0_fname[B0_FNAME_SIZE_ORG - 1] |
39 | 186 |
187 /* | |
188 * The b0_flags field is new in Vim 7.0. | |
189 */ | |
2267 | 190 #define b0_flags b0_fname[B0_FNAME_SIZE_ORG - 2] |
191 | |
192 /* | |
193 * Crypt seed goes here, 8 bytes. New in Vim 7.3. | |
194 * Without encryption these bytes may be used for 'fenc'. | |
195 */ | |
196 #define b0_seed b0_fname[B0_FNAME_SIZE_ORG - 2 - MF_SEED_LEN] | |
39 | 197 |
198 /* The lowest two bits contain the fileformat. Zero means it's not set | |
199 * (compatible with Vim 6.x), otherwise it's EOL_UNIX + 1, EOL_DOS + 1 or | |
200 * EOL_MAC + 1. */ | |
201 #define B0_FF_MASK 3 | |
202 | |
203 /* Swap file is in directory of edited file. Used to find the file from | |
204 * different mount points. */ | |
205 #define B0_SAME_DIR 4 | |
206 | |
207 /* The 'fileencoding' is at the end of b0_fname[], with a NUL in front of it. | |
208 * When empty there is only the NUL. */ | |
209 #define B0_HAS_FENC 8 | |
7 | 210 |
211 #define STACK_INCR 5 /* nr of entries added to ml_stack at a time */ | |
212 | |
213 /* | |
214 * The line number where the first mark may be is remembered. | |
215 * If it is 0 there are no marks at all. | |
216 * (always used for the current buffer only, no buffer change possible while | |
217 * executing a global command). | |
218 */ | |
219 static linenr_T lowest_marked = 0; | |
220 | |
221 /* | |
222 * arguments for ml_find_line() | |
223 */ | |
224 #define ML_DELETE 0x11 /* delete line */ | |
225 #define ML_INSERT 0x12 /* insert line */ | |
226 #define ML_FIND 0x13 /* just find the line */ | |
227 #define ML_FLUSH 0x02 /* flush locked block */ | |
228 #define ML_SIMPLE(x) (x & 0x10) /* DEL, INS or FIND */ | |
229 | |
2267 | 230 /* argument for ml_upd_block0() */ |
231 typedef enum { | |
232 UB_FNAME = 0 /* update timestamp and filename */ | |
233 , UB_SAME_DIR /* update the B0_SAME_DIR flag */ | |
234 , UB_CRYPT /* update crypt key */ | |
235 } upd_block0_T; | |
236 | |
237 #ifdef FEAT_CRYPT | |
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238 static void ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p); |
2267 | 239 #endif |
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240 static void ml_upd_block0(buf_T *buf, upd_block0_T what); |
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241 static void set_b0_fname(ZERO_BL *, buf_T *buf); |
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242 static void set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf); |
39 | 243 #ifdef FEAT_MBYTE |
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244 static void add_b0_fenc(ZERO_BL *b0p, buf_T *buf); |
39 | 245 #endif |
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246 static time_t swapfile_info(char_u *); |
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247 static int recov_file_names(char_u **, char_u *, int prepend_dot); |
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248 static int ml_append_int(buf_T *, linenr_T, char_u *, colnr_T, int, int); |
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249 static int ml_delete_int(buf_T *, linenr_T, int); |
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250 static char_u *findswapname(buf_T *, char_u **, char_u *); |
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251 static void ml_flush_line(buf_T *); |
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252 static bhdr_T *ml_new_data(memfile_T *, int, int); |
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253 static bhdr_T *ml_new_ptr(memfile_T *); |
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254 static bhdr_T *ml_find_line(buf_T *, linenr_T, int); |
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255 static int ml_add_stack(buf_T *); |
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256 static void ml_lineadd(buf_T *, int); |
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257 static int b0_magic_wrong(ZERO_BL *); |
7 | 258 #ifdef CHECK_INODE |
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259 static int fnamecmp_ino(char_u *, char_u *, long); |
7 | 260 #endif |
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261 static void long_to_char(long, char_u *); |
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262 static long char_to_long(char_u *); |
2267 | 263 #ifdef FEAT_CRYPT |
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264 static cryptstate_T *ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading); |
2267 | 265 #endif |
7 | 266 #ifdef FEAT_BYTEOFF |
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267 static void ml_updatechunk(buf_T *buf, long line, long len, int updtype); |
7 | 268 #endif |
269 | |
270 /* | |
625 | 271 * Open a new memline for "buf". |
7 | 272 * |
625 | 273 * Return FAIL for failure, OK otherwise. |
7 | 274 */ |
275 int | |
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276 ml_open(buf_T *buf) |
7 | 277 { |
278 memfile_T *mfp; | |
279 bhdr_T *hp = NULL; | |
280 ZERO_BL *b0p; | |
281 PTR_BL *pp; | |
282 DATA_BL *dp; | |
283 | |
625 | 284 /* |
285 * init fields in memline struct | |
286 */ | |
2267 | 287 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
625 | 288 buf->b_ml.ml_stack = NULL; /* no stack yet */ |
289 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
290 buf->b_ml.ml_locked = NULL; /* no cached block */ | |
291 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
7 | 292 #ifdef FEAT_BYTEOFF |
625 | 293 buf->b_ml.ml_chunksize = NULL; |
7 | 294 #endif |
295 | |
5737 | 296 if (cmdmod.noswapfile) |
297 buf->b_p_swf = FALSE; | |
298 | |
625 | 299 /* |
300 * When 'updatecount' is non-zero swap file may be opened later. | |
301 */ | |
302 if (p_uc && buf->b_p_swf) | |
303 buf->b_may_swap = TRUE; | |
7 | 304 else |
625 | 305 buf->b_may_swap = FALSE; |
306 | |
307 /* | |
308 * Open the memfile. No swap file is created yet. | |
309 */ | |
7 | 310 mfp = mf_open(NULL, 0); |
311 if (mfp == NULL) | |
312 goto error; | |
313 | |
625 | 314 buf->b_ml.ml_mfp = mfp; |
2267 | 315 #ifdef FEAT_CRYPT |
316 mfp->mf_buffer = buf; | |
317 #endif | |
625 | 318 buf->b_ml.ml_flags = ML_EMPTY; |
319 buf->b_ml.ml_line_count = 1; | |
13 | 320 #ifdef FEAT_LINEBREAK |
321 curwin->w_nrwidth_line_count = 0; | |
322 #endif | |
7 | 323 |
324 /* | |
325 * fill block0 struct and write page 0 | |
326 */ | |
327 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
328 goto error; | |
329 if (hp->bh_bnum != 0) | |
330 { | |
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331 IEMSG(_("E298: Didn't get block nr 0?")); |
7 | 332 goto error; |
333 } | |
334 b0p = (ZERO_BL *)(hp->bh_data); | |
335 | |
336 b0p->b0_id[0] = BLOCK0_ID0; | |
337 b0p->b0_id[1] = BLOCK0_ID1; | |
338 b0p->b0_magic_long = (long)B0_MAGIC_LONG; | |
339 b0p->b0_magic_int = (int)B0_MAGIC_INT; | |
340 b0p->b0_magic_short = (short)B0_MAGIC_SHORT; | |
341 b0p->b0_magic_char = B0_MAGIC_CHAR; | |
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342 mch_memmove(b0p->b0_version, "VIM ", 4); |
7 | 343 STRNCPY(b0p->b0_version + 4, Version, 6); |
344 long_to_char((long)mfp->mf_page_size, b0p->b0_page_size); | |
625 | 345 |
800 | 346 #ifdef FEAT_SPELL |
347 if (!buf->b_spell) | |
348 #endif | |
625 | 349 { |
350 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; | |
351 b0p->b0_flags = get_fileformat(buf) + 1; | |
352 set_b0_fname(b0p, buf); | |
353 (void)get_user_name(b0p->b0_uname, B0_UNAME_SIZE); | |
354 b0p->b0_uname[B0_UNAME_SIZE - 1] = NUL; | |
355 mch_get_host_name(b0p->b0_hname, B0_HNAME_SIZE); | |
356 b0p->b0_hname[B0_HNAME_SIZE - 1] = NUL; | |
357 long_to_char(mch_get_pid(), b0p->b0_pid); | |
2267 | 358 #ifdef FEAT_CRYPT |
6122 | 359 ml_set_b0_crypt(buf, b0p); |
2267 | 360 #endif |
625 | 361 } |
7 | 362 |
363 /* | |
364 * Always sync block number 0 to disk, so we can check the file name in | |
2267 | 365 * the swap file in findswapname(). Don't do this for a help files or |
366 * a spell buffer though. | |
7 | 367 * Only works when there's a swapfile, otherwise it's done when the file |
368 * is created. | |
369 */ | |
370 mf_put(mfp, hp, TRUE, FALSE); | |
625 | 371 if (!buf->b_help && !B_SPELL(buf)) |
7 | 372 (void)mf_sync(mfp, 0); |
373 | |
625 | 374 /* |
375 * Fill in root pointer block and write page 1. | |
376 */ | |
7 | 377 if ((hp = ml_new_ptr(mfp)) == NULL) |
378 goto error; | |
379 if (hp->bh_bnum != 1) | |
380 { | |
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381 IEMSG(_("E298: Didn't get block nr 1?")); |
7 | 382 goto error; |
383 } | |
384 pp = (PTR_BL *)(hp->bh_data); | |
385 pp->pb_count = 1; | |
386 pp->pb_pointer[0].pe_bnum = 2; | |
387 pp->pb_pointer[0].pe_page_count = 1; | |
388 pp->pb_pointer[0].pe_old_lnum = 1; | |
389 pp->pb_pointer[0].pe_line_count = 1; /* line count after insertion */ | |
390 mf_put(mfp, hp, TRUE, FALSE); | |
391 | |
625 | 392 /* |
393 * Allocate first data block and create an empty line 1. | |
394 */ | |
7 | 395 if ((hp = ml_new_data(mfp, FALSE, 1)) == NULL) |
396 goto error; | |
397 if (hp->bh_bnum != 2) | |
398 { | |
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399 IEMSG(_("E298: Didn't get block nr 2?")); |
7 | 400 goto error; |
401 } | |
402 | |
403 dp = (DATA_BL *)(hp->bh_data); | |
404 dp->db_index[0] = --dp->db_txt_start; /* at end of block */ | |
405 dp->db_free -= 1 + INDEX_SIZE; | |
406 dp->db_line_count = 1; | |
2003 | 407 *((char_u *)dp + dp->db_txt_start) = NUL; /* empty line */ |
7 | 408 |
409 return OK; | |
410 | |
411 error: | |
412 if (mfp != NULL) | |
413 { | |
414 if (hp) | |
415 mf_put(mfp, hp, FALSE, FALSE); | |
416 mf_close(mfp, TRUE); /* will also free(mfp->mf_fname) */ | |
417 } | |
625 | 418 buf->b_ml.ml_mfp = NULL; |
7 | 419 return FAIL; |
420 } | |
421 | |
2267 | 422 #if defined(FEAT_CRYPT) || defined(PROTO) |
423 /* | |
6130 | 424 * Prepare encryption for "buf" for the current key and method. |
425 */ | |
426 static void | |
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427 ml_set_mfp_crypt(buf_T *buf) |
6130 | 428 { |
429 if (*buf->b_p_key != NUL) | |
430 { | |
431 int method_nr = crypt_get_method_nr(buf); | |
432 | |
433 if (method_nr > CRYPT_M_ZIP) | |
434 { | |
435 /* Generate a seed and store it in the memfile. */ | |
436 sha2_seed(buf->b_ml.ml_mfp->mf_seed, MF_SEED_LEN, NULL, 0); | |
437 } | |
438 } | |
439 } | |
440 | |
441 /* | |
2267 | 442 * Prepare encryption for "buf" with block 0 "b0p". |
443 */ | |
444 static void | |
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445 ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p) |
2267 | 446 { |
447 if (*buf->b_p_key == NUL) | |
448 b0p->b0_id[1] = BLOCK0_ID1; | |
449 else | |
450 { | |
6122 | 451 int method_nr = crypt_get_method_nr(buf); |
452 | |
453 b0p->b0_id[1] = id1_codes[method_nr]; | |
454 if (method_nr > CRYPT_M_ZIP) | |
2267 | 455 { |
456 /* Generate a seed and store it in block 0 and in the memfile. */ | |
457 sha2_seed(&b0p->b0_seed, MF_SEED_LEN, NULL, 0); | |
458 mch_memmove(buf->b_ml.ml_mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); | |
459 } | |
460 } | |
461 } | |
462 | |
463 /* | |
464 * Called after the crypt key or 'cryptmethod' was changed for "buf". | |
465 * Will apply this to the swapfile. | |
466 * "old_key" is the previous key. It is equal to buf->b_p_key when | |
467 * 'cryptmethod' is changed. | |
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468 * "old_cm" is the previous 'cryptmethod'. It is equal to the current |
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469 * 'cryptmethod' when 'key' is changed. |
2267 | 470 */ |
471 void | |
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472 ml_set_crypt_key( |
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473 buf_T *buf, |
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474 char_u *old_key, |
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475 char_u *old_cm) |
2267 | 476 { |
477 memfile_T *mfp = buf->b_ml.ml_mfp; | |
478 bhdr_T *hp; | |
479 int page_count; | |
480 int idx; | |
481 long error; | |
482 infoptr_T *ip; | |
483 PTR_BL *pp; | |
484 DATA_BL *dp; | |
485 blocknr_T bnum; | |
486 int top; | |
6817 | 487 int old_method; |
2267 | 488 |
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489 if (mfp == NULL) |
2267 | 490 return; /* no memfile yet, nothing to do */ |
6817 | 491 old_method = crypt_method_nr_from_name(old_cm); |
492 | |
493 /* First make sure the swapfile is in a consistent state, using the old | |
494 * key and method. */ | |
495 { | |
496 char_u *new_key = buf->b_p_key; | |
497 char_u *new_buf_cm = buf->b_p_cm; | |
498 | |
499 buf->b_p_key = old_key; | |
500 buf->b_p_cm = old_cm; | |
501 ml_preserve(buf, FALSE); | |
502 buf->b_p_key = new_key; | |
503 buf->b_p_cm = new_buf_cm; | |
504 } | |
2267 | 505 |
506 /* Set the key, method and seed to be used for reading, these must be the | |
507 * old values. */ | |
508 mfp->mf_old_key = old_key; | |
6817 | 509 mfp->mf_old_cm = old_method; |
510 if (old_method > 0 && *old_key != NUL) | |
2267 | 511 mch_memmove(mfp->mf_old_seed, mfp->mf_seed, MF_SEED_LEN); |
512 | |
513 /* Update block 0 with the crypt flag and may set a new seed. */ | |
514 ml_upd_block0(buf, UB_CRYPT); | |
515 | |
516 if (mfp->mf_infile_count > 2) | |
517 { | |
518 /* | |
519 * Need to read back all data blocks from disk, decrypt them with the | |
520 * old key/method and mark them to be written. The algorithm is | |
521 * similar to what happens in ml_recover(), but we skip negative block | |
522 * numbers. | |
523 */ | |
524 ml_flush_line(buf); /* flush buffered line */ | |
525 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
526 | |
527 hp = NULL; | |
528 bnum = 1; /* start with block 1 */ | |
529 page_count = 1; /* which is 1 page */ | |
530 idx = 0; /* start with first index in block 1 */ | |
531 error = 0; | |
532 buf->b_ml.ml_stack_top = 0; | |
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533 VIM_CLEAR(buf->b_ml.ml_stack); |
2267 | 534 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
535 | |
536 for ( ; !got_int; line_breakcheck()) | |
537 { | |
538 if (hp != NULL) | |
539 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
540 | |
541 /* get the block (pointer or data) */ | |
542 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
543 { | |
544 if (bnum == 1) | |
545 break; | |
546 ++error; | |
547 } | |
548 else | |
549 { | |
550 pp = (PTR_BL *)(hp->bh_data); | |
551 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
552 { | |
553 if (pp->pb_count == 0) | |
554 { | |
555 /* empty block? */ | |
556 ++error; | |
557 } | |
558 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
559 { | |
560 if (pp->pb_pointer[idx].pe_bnum < 0) | |
561 { | |
6817 | 562 /* Skip data block with negative block number. |
563 * Should not happen, because of the ml_preserve() | |
564 * above. Get same block again for next index. */ | |
565 ++idx; | |
2267 | 566 continue; |
567 } | |
568 | |
569 /* going one block deeper in the tree, new entry in | |
570 * stack */ | |
571 if ((top = ml_add_stack(buf)) < 0) | |
572 { | |
573 ++error; | |
574 break; /* out of memory */ | |
575 } | |
576 ip = &(buf->b_ml.ml_stack[top]); | |
577 ip->ip_bnum = bnum; | |
578 ip->ip_index = idx; | |
579 | |
580 bnum = pp->pb_pointer[idx].pe_bnum; | |
581 page_count = pp->pb_pointer[idx].pe_page_count; | |
6817 | 582 idx = 0; |
2267 | 583 continue; |
584 } | |
585 } | |
586 else /* not a pointer block */ | |
587 { | |
588 dp = (DATA_BL *)(hp->bh_data); | |
589 if (dp->db_id != DATA_ID) /* block id wrong */ | |
590 ++error; | |
591 else | |
592 { | |
593 /* It is a data block, need to write it back to disk. */ | |
594 mf_put(mfp, hp, TRUE, FALSE); | |
595 hp = NULL; | |
596 } | |
597 } | |
598 } | |
599 | |
600 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
601 break; | |
602 | |
603 /* go one block up in the tree */ | |
604 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
605 bnum = ip->ip_bnum; | |
606 idx = ip->ip_index + 1; /* go to next index */ | |
607 page_count = 1; | |
608 } | |
6817 | 609 if (hp != NULL) |
610 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
2657 | 611 |
612 if (error > 0) | |
613 EMSG(_("E843: Error while updating swap file crypt")); | |
2267 | 614 } |
615 | |
616 mfp->mf_old_key = NULL; | |
617 } | |
618 #endif | |
619 | |
7 | 620 /* |
621 * ml_setname() is called when the file name of "buf" has been changed. | |
622 * It may rename the swap file. | |
623 */ | |
624 void | |
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625 ml_setname(buf_T *buf) |
7 | 626 { |
627 int success = FALSE; | |
628 memfile_T *mfp; | |
629 char_u *fname; | |
630 char_u *dirp; | |
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631 #if defined(MSWIN) |
7 | 632 char_u *p; |
633 #endif | |
634 | |
635 mfp = buf->b_ml.ml_mfp; | |
636 if (mfp->mf_fd < 0) /* there is no swap file yet */ | |
637 { | |
638 /* | |
639 * When 'updatecount' is 0 and 'noswapfile' there is no swap file. | |
640 * For help files we will make a swap file now. | |
641 */ | |
5737 | 642 if (p_uc != 0 && !cmdmod.noswapfile) |
7 | 643 ml_open_file(buf); /* create a swap file */ |
644 return; | |
645 } | |
646 | |
647 /* | |
648 * Try all directories in the 'directory' option. | |
649 */ | |
650 dirp = p_dir; | |
651 for (;;) | |
652 { | |
653 if (*dirp == NUL) /* tried all directories, fail */ | |
654 break; | |
43 | 655 fname = findswapname(buf, &dirp, mfp->mf_fname); |
656 /* alloc's fname */ | |
3158 | 657 if (dirp == NULL) /* out of memory */ |
658 break; | |
7 | 659 if (fname == NULL) /* no file name found for this dir */ |
660 continue; | |
661 | |
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662 #if defined(MSWIN) |
7 | 663 /* |
664 * Set full pathname for swap file now, because a ":!cd dir" may | |
665 * change directory without us knowing it. | |
666 */ | |
667 p = FullName_save(fname, FALSE); | |
668 vim_free(fname); | |
669 fname = p; | |
670 if (fname == NULL) | |
671 continue; | |
672 #endif | |
673 /* if the file name is the same we don't have to do anything */ | |
674 if (fnamecmp(fname, mfp->mf_fname) == 0) | |
675 { | |
676 vim_free(fname); | |
677 success = TRUE; | |
678 break; | |
679 } | |
680 /* need to close the swap file before renaming */ | |
681 if (mfp->mf_fd >= 0) | |
682 { | |
683 close(mfp->mf_fd); | |
684 mfp->mf_fd = -1; | |
685 } | |
686 | |
687 /* try to rename the swap file */ | |
688 if (vim_rename(mfp->mf_fname, fname) == 0) | |
689 { | |
690 success = TRUE; | |
691 vim_free(mfp->mf_fname); | |
692 mfp->mf_fname = fname; | |
693 vim_free(mfp->mf_ffname); | |
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694 #if defined(MSWIN) |
7 | 695 mfp->mf_ffname = NULL; /* mf_fname is full pathname already */ |
696 #else | |
697 mf_set_ffname(mfp); | |
698 #endif | |
2267 | 699 ml_upd_block0(buf, UB_SAME_DIR); |
7 | 700 break; |
701 } | |
702 vim_free(fname); /* this fname didn't work, try another */ | |
703 } | |
704 | |
705 if (mfp->mf_fd == -1) /* need to (re)open the swap file */ | |
706 { | |
707 mfp->mf_fd = mch_open((char *)mfp->mf_fname, O_RDWR | O_EXTRA, 0); | |
708 if (mfp->mf_fd < 0) | |
709 { | |
710 /* could not (re)open the swap file, what can we do???? */ | |
711 EMSG(_("E301: Oops, lost the swap file!!!")); | |
712 return; | |
713 } | |
2003 | 714 #ifdef HAVE_FD_CLOEXEC |
715 { | |
716 int fdflags = fcntl(mfp->mf_fd, F_GETFD); | |
717 if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0) | |
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718 (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC); |
2003 | 719 } |
720 #endif | |
7 | 721 } |
722 if (!success) | |
723 EMSG(_("E302: Could not rename swap file")); | |
724 } | |
725 | |
726 /* | |
727 * Open a file for the memfile for all buffers that are not readonly or have | |
728 * been modified. | |
729 * Used when 'updatecount' changes from zero to non-zero. | |
730 */ | |
731 void | |
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732 ml_open_files(void) |
7 | 733 { |
734 buf_T *buf; | |
735 | |
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736 FOR_ALL_BUFFERS(buf) |
7 | 737 if (!buf->b_p_ro || buf->b_changed) |
738 ml_open_file(buf); | |
739 } | |
740 | |
741 /* | |
742 * Open a swap file for an existing memfile, if there is no swap file yet. | |
743 * If we are unable to find a file name, mf_fname will be NULL | |
744 * and the memfile will be in memory only (no recovery possible). | |
745 */ | |
746 void | |
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747 ml_open_file(buf_T *buf) |
7 | 748 { |
749 memfile_T *mfp; | |
750 char_u *fname; | |
751 char_u *dirp; | |
752 | |
753 mfp = buf->b_ml.ml_mfp; | |
5737 | 754 if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf || cmdmod.noswapfile) |
7 | 755 return; /* nothing to do */ |
756 | |
748 | 757 #ifdef FEAT_SPELL |
625 | 758 /* For a spell buffer use a temp file name. */ |
759 if (buf->b_spell) | |
760 { | |
6721 | 761 fname = vim_tempname('s', FALSE); |
625 | 762 if (fname != NULL) |
763 (void)mf_open_file(mfp, fname); /* consumes fname! */ | |
764 buf->b_may_swap = FALSE; | |
765 return; | |
766 } | |
767 #endif | |
768 | |
7 | 769 /* |
770 * Try all directories in 'directory' option. | |
771 */ | |
772 dirp = p_dir; | |
773 for (;;) | |
774 { | |
775 if (*dirp == NUL) | |
776 break; | |
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777 /* There is a small chance that between choosing the swap file name |
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778 * and creating it, another Vim creates the file. In that case the |
7 | 779 * creation will fail and we will use another directory. */ |
43 | 780 fname = findswapname(buf, &dirp, NULL); /* allocates fname */ |
3158 | 781 if (dirp == NULL) |
782 break; /* out of memory */ | |
7 | 783 if (fname == NULL) |
784 continue; | |
785 if (mf_open_file(mfp, fname) == OK) /* consumes fname! */ | |
786 { | |
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787 #if defined(MSWIN) |
7 | 788 /* |
789 * set full pathname for swap file now, because a ":!cd dir" may | |
790 * change directory without us knowing it. | |
791 */ | |
792 mf_fullname(mfp); | |
793 #endif | |
2267 | 794 ml_upd_block0(buf, UB_SAME_DIR); |
39 | 795 |
7 | 796 /* Flush block zero, so others can read it */ |
797 if (mf_sync(mfp, MFS_ZERO) == OK) | |
630 | 798 { |
799 /* Mark all blocks that should be in the swapfile as dirty. | |
800 * Needed for when the 'swapfile' option was reset, so that | |
801 * the swap file was deleted, and then on again. */ | |
802 mf_set_dirty(mfp); | |
7 | 803 break; |
630 | 804 } |
7 | 805 /* Writing block 0 failed: close the file and try another dir */ |
806 mf_close_file(buf, FALSE); | |
807 } | |
808 } | |
809 | |
810 if (mfp->mf_fname == NULL) /* Failed! */ | |
811 { | |
812 need_wait_return = TRUE; /* call wait_return later */ | |
813 ++no_wait_return; | |
814 (void)EMSG2(_("E303: Unable to open swap file for \"%s\", recovery impossible"), | |
3839 | 815 buf_spname(buf) != NULL ? buf_spname(buf) : buf->b_fname); |
7 | 816 --no_wait_return; |
817 } | |
818 | |
819 /* don't try to open a swap file again */ | |
820 buf->b_may_swap = FALSE; | |
821 } | |
822 | |
823 /* | |
824 * If still need to create a swap file, and starting to edit a not-readonly | |
825 * file, or reading into an existing buffer, create a swap file now. | |
826 */ | |
827 void | |
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828 check_need_swap( |
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829 int newfile) // reading file into new buffer |
7 | 830 { |
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831 int old_msg_silent = msg_silent; // might be reset by an E325 message |
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832 |
7 | 833 if (curbuf->b_may_swap && (!curbuf->b_p_ro || !newfile)) |
834 ml_open_file(curbuf); | |
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835 msg_silent = old_msg_silent; |
7 | 836 } |
837 | |
838 /* | |
839 * Close memline for buffer 'buf'. | |
840 * If 'del_file' is TRUE, delete the swap file | |
841 */ | |
842 void | |
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843 ml_close(buf_T *buf, int del_file) |
7 | 844 { |
845 if (buf->b_ml.ml_mfp == NULL) /* not open */ | |
846 return; | |
847 mf_close(buf->b_ml.ml_mfp, del_file); /* close the .swp file */ | |
848 if (buf->b_ml.ml_line_lnum != 0 && (buf->b_ml.ml_flags & ML_LINE_DIRTY)) | |
849 vim_free(buf->b_ml.ml_line_ptr); | |
850 vim_free(buf->b_ml.ml_stack); | |
851 #ifdef FEAT_BYTEOFF | |
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852 VIM_CLEAR(buf->b_ml.ml_chunksize); |
7 | 853 #endif |
854 buf->b_ml.ml_mfp = NULL; | |
855 | |
856 /* Reset the "recovered" flag, give the ATTENTION prompt the next time | |
857 * this buffer is loaded. */ | |
858 buf->b_flags &= ~BF_RECOVERED; | |
859 } | |
860 | |
861 /* | |
862 * Close all existing memlines and memfiles. | |
863 * Only used when exiting. | |
864 * When 'del_file' is TRUE, delete the memfiles. | |
165 | 865 * But don't delete files that were ":preserve"d when we are POSIX compatible. |
7 | 866 */ |
867 void | |
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868 ml_close_all(int del_file) |
7 | 869 { |
870 buf_T *buf; | |
871 | |
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872 FOR_ALL_BUFFERS(buf) |
165 | 873 ml_close(buf, del_file && ((buf->b_flags & BF_PRESERVED) == 0 |
874 || vim_strchr(p_cpo, CPO_PRESERVE) == NULL)); | |
5519 | 875 #ifdef FEAT_SPELL |
876 spell_delete_wordlist(); /* delete the internal wordlist */ | |
877 #endif | |
7 | 878 #ifdef TEMPDIRNAMES |
5519 | 879 vim_deltempdir(); /* delete created temp directory */ |
7 | 880 #endif |
881 } | |
882 | |
883 /* | |
884 * Close all memfiles for not modified buffers. | |
885 * Only use just before exiting! | |
886 */ | |
887 void | |
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888 ml_close_notmod(void) |
7 | 889 { |
890 buf_T *buf; | |
891 | |
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892 FOR_ALL_BUFFERS(buf) |
7 | 893 if (!bufIsChanged(buf)) |
894 ml_close(buf, TRUE); /* close all not-modified buffers */ | |
895 } | |
896 | |
897 /* | |
898 * Update the timestamp in the .swp file. | |
899 * Used when the file has been written. | |
900 */ | |
901 void | |
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902 ml_timestamp(buf_T *buf) |
7 | 903 { |
2267 | 904 ml_upd_block0(buf, UB_FNAME); |
905 } | |
906 | |
907 /* | |
908 * Return FAIL when the ID of "b0p" is wrong. | |
909 */ | |
910 static int | |
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911 ml_check_b0_id(ZERO_BL *b0p) |
2267 | 912 { |
913 if (b0p->b0_id[0] != BLOCK0_ID0 | |
914 || (b0p->b0_id[1] != BLOCK0_ID1 | |
915 && b0p->b0_id[1] != BLOCK0_ID1_C0 | |
6122 | 916 && b0p->b0_id[1] != BLOCK0_ID1_C1 |
917 && b0p->b0_id[1] != BLOCK0_ID1_C2) | |
2267 | 918 ) |
919 return FAIL; | |
920 return OK; | |
39 | 921 } |
922 | |
923 /* | |
924 * Update the timestamp or the B0_SAME_DIR flag of the .swp file. | |
925 */ | |
926 static void | |
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927 ml_upd_block0(buf_T *buf, upd_block0_T what) |
39 | 928 { |
7 | 929 memfile_T *mfp; |
930 bhdr_T *hp; | |
931 ZERO_BL *b0p; | |
932 | |
933 mfp = buf->b_ml.ml_mfp; | |
6130 | 934 if (mfp == NULL) |
7 | 935 return; |
6130 | 936 hp = mf_get(mfp, (blocknr_T)0, 1); |
937 if (hp == NULL) | |
938 { | |
939 #ifdef FEAT_CRYPT | |
940 /* Possibly update the seed in the memfile before there is a block0. */ | |
941 if (what == UB_CRYPT) | |
942 ml_set_mfp_crypt(buf); | |
943 #endif | |
944 return; | |
945 } | |
946 | |
7 | 947 b0p = (ZERO_BL *)(hp->bh_data); |
2267 | 948 if (ml_check_b0_id(b0p) == FAIL) |
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949 IEMSG(_("E304: ml_upd_block0(): Didn't get block 0??")); |
7 | 950 else |
39 | 951 { |
2267 | 952 if (what == UB_FNAME) |
39 | 953 set_b0_fname(b0p, buf); |
2267 | 954 #ifdef FEAT_CRYPT |
955 else if (what == UB_CRYPT) | |
956 ml_set_b0_crypt(buf, b0p); | |
957 #endif | |
958 else /* what == UB_SAME_DIR */ | |
39 | 959 set_b0_dir_flag(b0p, buf); |
960 } | |
7 | 961 mf_put(mfp, hp, TRUE, FALSE); |
962 } | |
963 | |
964 /* | |
965 * Write file name and timestamp into block 0 of a swap file. | |
966 * Also set buf->b_mtime. | |
967 * Don't use NameBuff[]!!! | |
968 */ | |
969 static void | |
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970 set_b0_fname(ZERO_BL *b0p, buf_T *buf) |
7 | 971 { |
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972 stat_T st; |
7 | 973 |
974 if (buf->b_ffname == NULL) | |
975 b0p->b0_fname[0] = NUL; | |
976 else | |
977 { | |
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978 #if defined(MSWIN) || defined(AMIGA) |
39 | 979 /* Systems that cannot translate "~user" back into a path: copy the |
980 * file name unmodified. Do use slashes instead of backslashes for | |
981 * portability. */ | |
2267 | 982 vim_strncpy(b0p->b0_fname, buf->b_ffname, B0_FNAME_SIZE_CRYPT - 1); |
39 | 983 # ifdef BACKSLASH_IN_FILENAME |
984 forward_slash(b0p->b0_fname); | |
985 # endif | |
7 | 986 #else |
987 size_t flen, ulen; | |
988 char_u uname[B0_UNAME_SIZE]; | |
989 | |
990 /* | |
991 * For a file under the home directory of the current user, we try to | |
992 * replace the home directory path with "~user". This helps when | |
993 * editing the same file on different machines over a network. | |
994 * First replace home dir path with "~/" with home_replace(). | |
995 * Then insert the user name to get "~user/". | |
996 */ | |
2267 | 997 home_replace(NULL, buf->b_ffname, b0p->b0_fname, |
998 B0_FNAME_SIZE_CRYPT, TRUE); | |
7 | 999 if (b0p->b0_fname[0] == '~') |
1000 { | |
1001 flen = STRLEN(b0p->b0_fname); | |
1002 /* If there is no user name or it is too long, don't use "~/" */ | |
1003 if (get_user_name(uname, B0_UNAME_SIZE) == FAIL | |
2267 | 1004 || (ulen = STRLEN(uname)) + flen > B0_FNAME_SIZE_CRYPT - 1) |
1005 vim_strncpy(b0p->b0_fname, buf->b_ffname, | |
1006 B0_FNAME_SIZE_CRYPT - 1); | |
7 | 1007 else |
1008 { | |
1009 mch_memmove(b0p->b0_fname + ulen + 1, b0p->b0_fname + 1, flen); | |
1010 mch_memmove(b0p->b0_fname + 1, uname, ulen); | |
1011 } | |
1012 } | |
1013 #endif | |
1014 if (mch_stat((char *)buf->b_ffname, &st) >= 0) | |
1015 { | |
1016 long_to_char((long)st.st_mtime, b0p->b0_mtime); | |
1017 #ifdef CHECK_INODE | |
1018 long_to_char((long)st.st_ino, b0p->b0_ino); | |
1019 #endif | |
1020 buf_store_time(buf, &st, buf->b_ffname); | |
1021 buf->b_mtime_read = buf->b_mtime; | |
1022 } | |
1023 else | |
1024 { | |
1025 long_to_char(0L, b0p->b0_mtime); | |
1026 #ifdef CHECK_INODE | |
1027 long_to_char(0L, b0p->b0_ino); | |
1028 #endif | |
1029 buf->b_mtime = 0; | |
1030 buf->b_mtime_read = 0; | |
1031 buf->b_orig_size = 0; | |
1032 buf->b_orig_mode = 0; | |
1033 } | |
1034 } | |
39 | 1035 |
1036 #ifdef FEAT_MBYTE | |
1037 /* Also add the 'fileencoding' if there is room. */ | |
1038 add_b0_fenc(b0p, curbuf); | |
1039 #endif | |
7 | 1040 } |
1041 | |
1042 /* | |
39 | 1043 * Update the B0_SAME_DIR flag of the swap file. It's set if the file and the |
1044 * swapfile for "buf" are in the same directory. | |
1045 * This is fail safe: if we are not sure the directories are equal the flag is | |
1046 * not set. | |
1047 */ | |
1048 static void | |
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1049 set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf) |
39 | 1050 { |
1051 if (same_directory(buf->b_ml.ml_mfp->mf_fname, buf->b_ffname)) | |
1052 b0p->b0_flags |= B0_SAME_DIR; | |
1053 else | |
1054 b0p->b0_flags &= ~B0_SAME_DIR; | |
1055 } | |
1056 | |
1057 #ifdef FEAT_MBYTE | |
1058 /* | |
1059 * When there is room, add the 'fileencoding' to block zero. | |
1060 */ | |
1061 static void | |
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1062 add_b0_fenc( |
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1063 ZERO_BL *b0p, |
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1064 buf_T *buf) |
39 | 1065 { |
1066 int n; | |
2267 | 1067 int size = B0_FNAME_SIZE_NOCRYPT; |
1068 | |
1069 # ifdef FEAT_CRYPT | |
1070 /* Without encryption use the same offset as in Vim 7.2 to be compatible. | |
1071 * With encryption it's OK to move elsewhere, the swap file is not | |
1072 * compatible anyway. */ | |
1073 if (*buf->b_p_key != NUL) | |
1074 size = B0_FNAME_SIZE_CRYPT; | |
1075 # endif | |
39 | 1076 |
835 | 1077 n = (int)STRLEN(buf->b_p_fenc); |
2267 | 1078 if ((int)STRLEN(b0p->b0_fname) + n + 1 > size) |
39 | 1079 b0p->b0_flags &= ~B0_HAS_FENC; |
1080 else | |
1081 { | |
2267 | 1082 mch_memmove((char *)b0p->b0_fname + size - n, |
39 | 1083 (char *)buf->b_p_fenc, (size_t)n); |
2267 | 1084 *(b0p->b0_fname + size - n - 1) = NUL; |
39 | 1085 b0p->b0_flags |= B0_HAS_FENC; |
1086 } | |
1087 } | |
1088 #endif | |
1089 | |
1090 | |
1091 /* | |
2267 | 1092 * Try to recover curbuf from the .swp file. |
7 | 1093 */ |
1094 void | |
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1095 ml_recover(void) |
7 | 1096 { |
1097 buf_T *buf = NULL; | |
1098 memfile_T *mfp = NULL; | |
1099 char_u *fname; | |
2267 | 1100 char_u *fname_used = NULL; |
7 | 1101 bhdr_T *hp = NULL; |
1102 ZERO_BL *b0p; | |
39 | 1103 int b0_ff; |
1104 char_u *b0_fenc = NULL; | |
2267 | 1105 #ifdef FEAT_CRYPT |
1106 int b0_cm = -1; | |
1107 #endif | |
7 | 1108 PTR_BL *pp; |
1109 DATA_BL *dp; | |
1110 infoptr_T *ip; | |
1111 blocknr_T bnum; | |
1112 int page_count; | |
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1113 stat_T org_stat, swp_stat; |
7 | 1114 int len; |
1115 int directly; | |
1116 linenr_T lnum; | |
1117 char_u *p; | |
1118 int i; | |
1119 long error; | |
1120 int cannot_open; | |
1121 linenr_T line_count; | |
1122 int has_error; | |
1123 int idx; | |
1124 int top; | |
1125 int txt_start; | |
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1126 off_T size; |
7 | 1127 int called_from_main; |
1128 int serious_error = TRUE; | |
1129 long mtime; | |
1130 int attr; | |
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1131 int orig_file_status = NOTDONE; |
7 | 1132 |
1133 recoverymode = TRUE; | |
1134 called_from_main = (curbuf->b_ml.ml_mfp == NULL); | |
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1135 attr = HL_ATTR(HLF_E); |
1975 | 1136 |
1137 /* | |
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1138 * If the file name ends in ".s[a-w][a-z]" we assume this is the swap file. |
1975 | 1139 * Otherwise a search is done to find the swap file(s). |
1140 */ | |
7 | 1141 fname = curbuf->b_fname; |
1142 if (fname == NULL) /* When there is no file name */ | |
1143 fname = (char_u *)""; | |
1144 len = (int)STRLEN(fname); | |
1145 if (len >= 4 && | |
2823 | 1146 #if defined(VMS) |
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1147 STRNICMP(fname + len - 4, "_s", 2) |
7 | 1148 #else |
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1149 STRNICMP(fname + len - 4, ".s", 2) |
7 | 1150 #endif |
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1151 == 0 |
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1153 TOLOWER_ASC(fname[len - 2])) != NULL |
1975 | 1154 && ASCII_ISALPHA(fname[len - 1])) |
7 | 1155 { |
1156 directly = TRUE; | |
2267 | 1157 fname_used = vim_strsave(fname); /* make a copy for mf_open() */ |
7 | 1158 } |
1159 else | |
1160 { | |
1161 directly = FALSE; | |
1162 | |
1163 /* count the number of matching swap files */ | |
2267 | 1164 len = recover_names(fname, FALSE, 0, NULL); |
7 | 1165 if (len == 0) /* no swap files found */ |
1166 { | |
1167 EMSG2(_("E305: No swap file found for %s"), fname); | |
1168 goto theend; | |
1169 } | |
1170 if (len == 1) /* one swap file found, use it */ | |
1171 i = 1; | |
1172 else /* several swap files found, choose */ | |
1173 { | |
1174 /* list the names of the swap files */ | |
2267 | 1175 (void)recover_names(fname, TRUE, 0, NULL); |
7 | 1176 msg_putchar('\n'); |
1177 MSG_PUTS(_("Enter number of swap file to use (0 to quit): ")); | |
374 | 1178 i = get_number(FALSE, NULL); |
7 | 1179 if (i < 1 || i > len) |
1180 goto theend; | |
1181 } | |
1182 /* get the swap file name that will be used */ | |
2267 | 1183 (void)recover_names(fname, FALSE, i, &fname_used); |
7 | 1184 } |
2267 | 1185 if (fname_used == NULL) |
7 | 1186 goto theend; /* out of memory */ |
1187 | |
1188 /* When called from main() still need to initialize storage structure */ | |
625 | 1189 if (called_from_main && ml_open(curbuf) == FAIL) |
7 | 1190 getout(1); |
1191 | |
2267 | 1192 /* |
1193 * Allocate a buffer structure for the swap file that is used for recovery. | |
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1194 * Only the memline and crypt information in it are really used. |
2267 | 1195 */ |
7 | 1196 buf = (buf_T *)alloc((unsigned)sizeof(buf_T)); |
1197 if (buf == NULL) | |
1198 goto theend; | |
2267 | 1199 |
1200 /* | |
1201 * init fields in memline struct | |
1202 */ | |
7 | 1203 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
1204 buf->b_ml.ml_stack = NULL; /* no stack yet */ | |
1205 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
1206 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
1207 buf->b_ml.ml_locked = NULL; /* no locked block */ | |
1208 buf->b_ml.ml_flags = 0; | |
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1209 #ifdef FEAT_CRYPT |
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1210 buf->b_p_key = empty_option; |
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1211 buf->b_p_cm = empty_option; |
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1212 #endif |
7 | 1213 |
2267 | 1214 /* |
1215 * open the memfile from the old swap file | |
1216 */ | |
1217 p = vim_strsave(fname_used); /* save "fname_used" for the message: | |
1218 mf_open() will consume "fname_used"! */ | |
1219 mfp = mf_open(fname_used, O_RDONLY); | |
1220 fname_used = p; | |
7 | 1221 if (mfp == NULL || mfp->mf_fd < 0) |
1222 { | |
2267 | 1223 if (fname_used != NULL) |
1224 EMSG2(_("E306: Cannot open %s"), fname_used); | |
7 | 1225 goto theend; |
1226 } | |
1227 buf->b_ml.ml_mfp = mfp; | |
2267 | 1228 #ifdef FEAT_CRYPT |
1229 mfp->mf_buffer = buf; | |
1230 #endif | |
7 | 1231 |
1232 /* | |
1233 * The page size set in mf_open() might be different from the page size | |
1234 * used in the swap file, we must get it from block 0. But to read block | |
1235 * 0 we need a page size. Use the minimal size for block 0 here, it will | |
1236 * be set to the real value below. | |
1237 */ | |
1238 mfp->mf_page_size = MIN_SWAP_PAGE_SIZE; | |
1239 | |
2267 | 1240 /* |
1241 * try to read block 0 | |
1242 */ | |
7 | 1243 if ((hp = mf_get(mfp, (blocknr_T)0, 1)) == NULL) |
1244 { | |
1245 msg_start(); | |
1246 MSG_PUTS_ATTR(_("Unable to read block 0 from "), attr | MSG_HIST); | |
1247 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
2267 | 1248 MSG_PUTS_ATTR(_("\nMaybe no changes were made or Vim did not update the swap file."), |
7 | 1249 attr | MSG_HIST); |
1250 msg_end(); | |
1251 goto theend; | |
1252 } | |
1253 b0p = (ZERO_BL *)(hp->bh_data); | |
1254 if (STRNCMP(b0p->b0_version, "VIM 3.0", 7) == 0) | |
1255 { | |
1256 msg_start(); | |
1257 msg_outtrans_attr(mfp->mf_fname, MSG_HIST); | |
1258 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
1259 MSG_HIST); | |
1260 MSG_PUTS_ATTR(_("Use Vim version 3.0.\n"), MSG_HIST); | |
1261 msg_end(); | |
1262 goto theend; | |
1263 } | |
2267 | 1264 if (ml_check_b0_id(b0p) == FAIL) |
7 | 1265 { |
1266 EMSG2(_("E307: %s does not look like a Vim swap file"), mfp->mf_fname); | |
1267 goto theend; | |
1268 } | |
1269 if (b0_magic_wrong(b0p)) | |
1270 { | |
1271 msg_start(); | |
1272 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
1273 #if defined(MSWIN) |
7 | 1274 if (STRNCMP(b0p->b0_hname, "PC ", 3) == 0) |
1275 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
1276 attr | MSG_HIST); | |
1277 else | |
1278 #endif | |
1279 MSG_PUTS_ATTR(_(" cannot be used on this computer.\n"), | |
1280 attr | MSG_HIST); | |
1281 MSG_PUTS_ATTR(_("The file was created on "), attr | MSG_HIST); | |
2273
7f09ce7b4126
Fix a memory leak in encryption. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2272
diff
changeset
|
1282 /* avoid going past the end of a corrupted hostname */ |
7 | 1283 b0p->b0_fname[0] = NUL; |
1284 MSG_PUTS_ATTR(b0p->b0_hname, attr | MSG_HIST); | |
1285 MSG_PUTS_ATTR(_(",\nor the file has been damaged."), attr | MSG_HIST); | |
1286 msg_end(); | |
1287 goto theend; | |
1288 } | |
1105 | 1289 |
2267 | 1290 #ifdef FEAT_CRYPT |
6122 | 1291 for (i = 0; i < (int)(sizeof(id1_codes) / sizeof(int)); ++i) |
1292 if (id1_codes[i] == b0p->b0_id[1]) | |
1293 b0_cm = i; | |
1294 if (b0_cm > 0) | |
2267 | 1295 mch_memmove(mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); |
6122 | 1296 crypt_set_cm_option(buf, b0_cm < 0 ? 0 : b0_cm); |
2267 | 1297 #else |
1298 if (b0p->b0_id[1] != BLOCK0_ID1) | |
1299 { | |
2283
7e1bd501306d
Mainly documentation updates.
Bram Moolenaar <bram@vim.org>
parents:
2273
diff
changeset
|
1300 EMSG2(_("E833: %s is encrypted and this version of Vim does not support encryption"), mfp->mf_fname); |
2267 | 1301 goto theend; |
1302 } | |
1303 #endif | |
1304 | |
7 | 1305 /* |
1306 * If we guessed the wrong page size, we have to recalculate the | |
1307 * highest block number in the file. | |
1308 */ | |
1309 if (mfp->mf_page_size != (unsigned)char_to_long(b0p->b0_page_size)) | |
1310 { | |
1105 | 1311 unsigned previous_page_size = mfp->mf_page_size; |
1312 | |
7 | 1313 mf_new_page_size(mfp, (unsigned)char_to_long(b0p->b0_page_size)); |
1105 | 1314 if (mfp->mf_page_size < previous_page_size) |
1315 { | |
1316 msg_start(); | |
1317 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
1318 MSG_PUTS_ATTR(_(" has been damaged (page size is smaller than minimum value).\n"), | |
1319 attr | MSG_HIST); | |
1320 msg_end(); | |
1321 goto theend; | |
1322 } | |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
1323 if ((size = vim_lseek(mfp->mf_fd, (off_T)0L, SEEK_END)) <= 0) |
7 | 1324 mfp->mf_blocknr_max = 0; /* no file or empty file */ |
1325 else | |
1326 mfp->mf_blocknr_max = (blocknr_T)(size / mfp->mf_page_size); | |
1327 mfp->mf_infile_count = mfp->mf_blocknr_max; | |
1105 | 1328 |
1329 /* need to reallocate the memory used to store the data */ | |
1330 p = alloc(mfp->mf_page_size); | |
1331 if (p == NULL) | |
1332 goto theend; | |
1333 mch_memmove(p, hp->bh_data, previous_page_size); | |
1334 vim_free(hp->bh_data); | |
1335 hp->bh_data = p; | |
1336 b0p = (ZERO_BL *)(hp->bh_data); | |
7 | 1337 } |
1338 | |
2267 | 1339 /* |
1340 * If .swp file name given directly, use name from swap file for buffer. | |
1341 */ | |
7 | 1342 if (directly) |
1343 { | |
1344 expand_env(b0p->b0_fname, NameBuff, MAXPATHL); | |
1345 if (setfname(curbuf, NameBuff, NULL, TRUE) == FAIL) | |
1346 goto theend; | |
1347 } | |
1348 | |
1349 home_replace(NULL, mfp->mf_fname, NameBuff, MAXPATHL, TRUE); | |
274 | 1350 smsg((char_u *)_("Using swap file \"%s\""), NameBuff); |
7 | 1351 |
1352 if (buf_spname(curbuf) != NULL) | |
3839 | 1353 vim_strncpy(NameBuff, buf_spname(curbuf), MAXPATHL - 1); |
7 | 1354 else |
1355 home_replace(NULL, curbuf->b_ffname, NameBuff, MAXPATHL, TRUE); | |
274 | 1356 smsg((char_u *)_("Original file \"%s\""), NameBuff); |
7 | 1357 msg_putchar('\n'); |
1358 | |
2267 | 1359 /* |
1360 * check date of swap file and original file | |
1361 */ | |
7 | 1362 mtime = char_to_long(b0p->b0_mtime); |
1363 if (curbuf->b_ffname != NULL | |
1364 && mch_stat((char *)curbuf->b_ffname, &org_stat) != -1 | |
1365 && ((mch_stat((char *)mfp->mf_fname, &swp_stat) != -1 | |
1366 && org_stat.st_mtime > swp_stat.st_mtime) | |
1367 || org_stat.st_mtime != mtime)) | |
1368 { | |
1369 EMSG(_("E308: Warning: Original file may have been changed")); | |
1370 } | |
1371 out_flush(); | |
39 | 1372 |
1373 /* Get the 'fileformat' and 'fileencoding' from block zero. */ | |
1374 b0_ff = (b0p->b0_flags & B0_FF_MASK); | |
1375 if (b0p->b0_flags & B0_HAS_FENC) | |
1376 { | |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1377 int fnsize = B0_FNAME_SIZE_NOCRYPT; |
2267 | 1378 |
1379 #ifdef FEAT_CRYPT | |
1380 /* Use the same size as in add_b0_fenc(). */ | |
1381 if (b0p->b0_id[1] != BLOCK0_ID1) | |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1382 fnsize = B0_FNAME_SIZE_CRYPT; |
2267 | 1383 #endif |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1384 for (p = b0p->b0_fname + fnsize; p > b0p->b0_fname && p[-1] != NUL; --p) |
39 | 1385 ; |
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1386 b0_fenc = vim_strnsave(p, (int)(b0p->b0_fname + fnsize - p)); |
39 | 1387 } |
1388 | |
7 | 1389 mf_put(mfp, hp, FALSE, FALSE); /* release block 0 */ |
1390 hp = NULL; | |
1391 | |
1392 /* | |
1393 * Now that we are sure that the file is going to be recovered, clear the | |
1394 * contents of the current buffer. | |
1395 */ | |
1396 while (!(curbuf->b_ml.ml_flags & ML_EMPTY)) | |
1397 ml_delete((linenr_T)1, FALSE); | |
1398 | |
1399 /* | |
1400 * Try reading the original file to obtain the values of 'fileformat', | |
1401 * 'fileencoding', etc. Ignore errors. The text itself is not used. | |
2267 | 1402 * When the file is encrypted the user is asked to enter the key. |
7 | 1403 */ |
1404 if (curbuf->b_ffname != NULL) | |
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1405 orig_file_status = readfile(curbuf->b_ffname, NULL, (linenr_T)0, |
7 | 1406 (linenr_T)0, (linenr_T)MAXLNUM, NULL, READ_NEW); |
1407 | |
2267 | 1408 #ifdef FEAT_CRYPT |
1409 if (b0_cm >= 0) | |
1410 { | |
1411 /* Need to ask the user for the crypt key. If this fails we continue | |
1412 * without a key, will probably get garbage text. */ | |
1413 if (*curbuf->b_p_key != NUL) | |
1414 { | |
1415 smsg((char_u *)_("Swap file is encrypted: \"%s\""), fname_used); | |
1416 MSG_PUTS(_("\nIf you entered a new crypt key but did not write the text file,")); | |
1417 MSG_PUTS(_("\nenter the new crypt key.")); | |
1418 MSG_PUTS(_("\nIf you wrote the text file after changing the crypt key press enter")); | |
1419 MSG_PUTS(_("\nto use the same key for text file and swap file")); | |
1420 } | |
1421 else | |
1422 smsg((char_u *)_(need_key_msg), fname_used); | |
6122 | 1423 buf->b_p_key = crypt_get_key(FALSE, FALSE); |
2267 | 1424 if (buf->b_p_key == NULL) |
1425 buf->b_p_key = curbuf->b_p_key; | |
1426 else if (*buf->b_p_key == NUL) | |
1427 { | |
1428 vim_free(buf->b_p_key); | |
1429 buf->b_p_key = curbuf->b_p_key; | |
1430 } | |
1431 if (buf->b_p_key == NULL) | |
1432 buf->b_p_key = empty_option; | |
2165
733f0dc510c3
Undo changes that are meant for the Vim 7.3 branch.
Bram Moolenaar <bram@vim.org>
parents:
2162
diff
changeset
|
1433 } |
2267 | 1434 #endif |
7 | 1435 |
39 | 1436 /* Use the 'fileformat' and 'fileencoding' as stored in the swap file. */ |
1437 if (b0_ff != 0) | |
1438 set_fileformat(b0_ff - 1, OPT_LOCAL); | |
1439 if (b0_fenc != NULL) | |
1440 { | |
1441 set_option_value((char_u *)"fenc", 0L, b0_fenc, OPT_LOCAL); | |
1442 vim_free(b0_fenc); | |
1443 } | |
1444 unchanged(curbuf, TRUE); | |
1445 | |
7 | 1446 bnum = 1; /* start with block 1 */ |
1447 page_count = 1; /* which is 1 page */ | |
1448 lnum = 0; /* append after line 0 in curbuf */ | |
1449 line_count = 0; | |
1450 idx = 0; /* start with first index in block 1 */ | |
1451 error = 0; | |
1452 buf->b_ml.ml_stack_top = 0; | |
1453 buf->b_ml.ml_stack = NULL; | |
1454 buf->b_ml.ml_stack_size = 0; /* no stack yet */ | |
1455 | |
1456 if (curbuf->b_ffname == NULL) | |
1457 cannot_open = TRUE; | |
1458 else | |
1459 cannot_open = FALSE; | |
1460 | |
1461 serious_error = FALSE; | |
1462 for ( ; !got_int; line_breakcheck()) | |
1463 { | |
1464 if (hp != NULL) | |
1465 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
1466 | |
1467 /* | |
1468 * get block | |
1469 */ | |
1470 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
1471 { | |
1472 if (bnum == 1) | |
1473 { | |
1474 EMSG2(_("E309: Unable to read block 1 from %s"), mfp->mf_fname); | |
1475 goto theend; | |
1476 } | |
1477 ++error; | |
1478 ml_append(lnum++, (char_u *)_("???MANY LINES MISSING"), | |
1479 (colnr_T)0, TRUE); | |
1480 } | |
1481 else /* there is a block */ | |
1482 { | |
1483 pp = (PTR_BL *)(hp->bh_data); | |
1484 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
1485 { | |
1486 /* check line count when using pointer block first time */ | |
1487 if (idx == 0 && line_count != 0) | |
1488 { | |
1489 for (i = 0; i < (int)pp->pb_count; ++i) | |
1490 line_count -= pp->pb_pointer[i].pe_line_count; | |
1491 if (line_count != 0) | |
1492 { | |
1493 ++error; | |
1494 ml_append(lnum++, (char_u *)_("???LINE COUNT WRONG"), | |
1495 (colnr_T)0, TRUE); | |
1496 } | |
1497 } | |
1498 | |
1499 if (pp->pb_count == 0) | |
1500 { | |
1501 ml_append(lnum++, (char_u *)_("???EMPTY BLOCK"), | |
1502 (colnr_T)0, TRUE); | |
1503 ++error; | |
1504 } | |
1505 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
1506 { | |
1507 if (pp->pb_pointer[idx].pe_bnum < 0) | |
1508 { | |
1509 /* | |
1510 * Data block with negative block number. | |
1511 * Try to read lines from the original file. | |
1512 * This is slow, but it works. | |
1513 */ | |
1514 if (!cannot_open) | |
1515 { | |
1516 line_count = pp->pb_pointer[idx].pe_line_count; | |
1517 if (readfile(curbuf->b_ffname, NULL, lnum, | |
1518 pp->pb_pointer[idx].pe_old_lnum - 1, | |
10575
01a5f64a7a20
patch 8.0.0177: BufEnter autocommand not fired for a directory
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
1519 line_count, NULL, 0) != OK) |
7 | 1520 cannot_open = TRUE; |
1521 else | |
1522 lnum += line_count; | |
1523 } | |
1524 if (cannot_open) | |
1525 { | |
1526 ++error; | |
1527 ml_append(lnum++, (char_u *)_("???LINES MISSING"), | |
1528 (colnr_T)0, TRUE); | |
1529 } | |
1530 ++idx; /* get same block again for next index */ | |
1531 continue; | |
1532 } | |
1533 | |
1534 /* | |
1535 * going one block deeper in the tree | |
1536 */ | |
1537 if ((top = ml_add_stack(buf)) < 0) /* new entry in stack */ | |
1538 { | |
1539 ++error; | |
1540 break; /* out of memory */ | |
1541 } | |
1542 ip = &(buf->b_ml.ml_stack[top]); | |
1543 ip->ip_bnum = bnum; | |
1544 ip->ip_index = idx; | |
1545 | |
1546 bnum = pp->pb_pointer[idx].pe_bnum; | |
1547 line_count = pp->pb_pointer[idx].pe_line_count; | |
1548 page_count = pp->pb_pointer[idx].pe_page_count; | |
2885 | 1549 idx = 0; |
7 | 1550 continue; |
1551 } | |
1552 } | |
1553 else /* not a pointer block */ | |
1554 { | |
1555 dp = (DATA_BL *)(hp->bh_data); | |
1556 if (dp->db_id != DATA_ID) /* block id wrong */ | |
1557 { | |
1558 if (bnum == 1) | |
1559 { | |
1560 EMSG2(_("E310: Block 1 ID wrong (%s not a .swp file?)"), | |
1561 mfp->mf_fname); | |
1562 goto theend; | |
1563 } | |
1564 ++error; | |
1565 ml_append(lnum++, (char_u *)_("???BLOCK MISSING"), | |
1566 (colnr_T)0, TRUE); | |
1567 } | |
1568 else | |
1569 { | |
1570 /* | |
1571 * it is a data block | |
1572 * Append all the lines in this block | |
1573 */ | |
1574 has_error = FALSE; | |
1575 /* | |
1576 * check length of block | |
1577 * if wrong, use length in pointer block | |
1578 */ | |
1579 if (page_count * mfp->mf_page_size != dp->db_txt_end) | |
1580 { | |
1581 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may be messed up"), | |
1582 (colnr_T)0, TRUE); | |
1583 ++error; | |
1584 has_error = TRUE; | |
1585 dp->db_txt_end = page_count * mfp->mf_page_size; | |
1586 } | |
1587 | |
1588 /* make sure there is a NUL at the end of the block */ | |
1589 *((char_u *)dp + dp->db_txt_end - 1) = NUL; | |
1590 | |
1591 /* | |
1592 * check number of lines in block | |
1593 * if wrong, use count in data block | |
1594 */ | |
1595 if (line_count != dp->db_line_count) | |
1596 { | |
1597 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may have been inserted/deleted"), | |
1598 (colnr_T)0, TRUE); | |
1599 ++error; | |
1600 has_error = TRUE; | |
1601 } | |
1602 | |
1603 for (i = 0; i < dp->db_line_count; ++i) | |
1604 { | |
1605 txt_start = (dp->db_index[i] & DB_INDEX_MASK); | |
1978 | 1606 if (txt_start <= (int)HEADER_SIZE |
7 | 1607 || txt_start >= (int)dp->db_txt_end) |
1608 { | |
1609 p = (char_u *)"???"; | |
1610 ++error; | |
1611 } | |
1612 else | |
1613 p = (char_u *)dp + txt_start; | |
1614 ml_append(lnum++, p, (colnr_T)0, TRUE); | |
1615 } | |
1616 if (has_error) | |
1978 | 1617 ml_append(lnum++, (char_u *)_("???END"), |
1618 (colnr_T)0, TRUE); | |
7 | 1619 } |
1620 } | |
1621 } | |
1622 | |
1623 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
1624 break; | |
1625 | |
1626 /* | |
1627 * go one block up in the tree | |
1628 */ | |
1629 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
1630 bnum = ip->ip_bnum; | |
1631 idx = ip->ip_index + 1; /* go to next index */ | |
1632 page_count = 1; | |
1633 } | |
1634 | |
1635 /* | |
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1636 * Compare the buffer contents with the original file. When they differ |
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1637 * set the 'modified' flag. |
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1638 * Lines 1 - lnum are the new contents. |
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1639 * Lines lnum + 1 to ml_line_count are the original contents. |
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1640 * Line ml_line_count + 1 in the dummy empty line. |
7 | 1641 */ |
2162
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1642 if (orig_file_status != OK || curbuf->b_ml.ml_line_count != lnum * 2 + 1) |
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1643 { |
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1644 /* Recovering an empty file results in two lines and the first line is |
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After recovery check if the text changed. If it did mark the buffer as
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1645 * empty. Don't set the modified flag then. */ |
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1646 if (!(curbuf->b_ml.ml_line_count == 2 && *ml_get(1) == NUL)) |
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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|
1647 { |
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|
1648 changed_int(); |
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1649 ++CHANGEDTICK(curbuf); |
2162
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1650 } |
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|
1651 } |
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1652 else |
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|
1653 { |
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|
1654 for (idx = 1; idx <= lnum; ++idx) |
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1655 { |
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1656 /* Need to copy one line, fetching the other one may flush it. */ |
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1657 p = vim_strsave(ml_get(idx)); |
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|
1658 i = STRCMP(p, ml_get(idx + lnum)); |
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1659 vim_free(p); |
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1660 if (i != 0) |
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1661 { |
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1662 changed_int(); |
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1663 ++CHANGEDTICK(curbuf); |
2162
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1664 break; |
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1665 } |
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|
1666 } |
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1667 } |
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1668 |
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|
1669 /* |
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1670 * Delete the lines from the original file and the dummy line from the |
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1671 * empty buffer. These will now be after the last line in the buffer. |
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1672 */ |
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1673 while (curbuf->b_ml.ml_line_count > lnum |
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1674 && !(curbuf->b_ml.ml_flags & ML_EMPTY)) |
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1675 ml_delete(curbuf->b_ml.ml_line_count, FALSE); |
7 | 1676 curbuf->b_flags |= BF_RECOVERED; |
1677 | |
1678 recoverymode = FALSE; | |
1679 if (got_int) | |
1680 EMSG(_("E311: Recovery Interrupted")); | |
1681 else if (error) | |
1682 { | |
1683 ++no_wait_return; | |
1684 MSG(">>>>>>>>>>>>>"); | |
1685 EMSG(_("E312: Errors detected while recovering; look for lines starting with ???")); | |
1686 --no_wait_return; | |
1687 MSG(_("See \":help E312\" for more information.")); | |
1688 MSG(">>>>>>>>>>>>>"); | |
1689 } | |
1690 else | |
1691 { | |
2162
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1692 if (curbuf->b_changed) |
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1693 { |
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1694 MSG(_("Recovery completed. You should check if everything is OK.")); |
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1695 MSG_PUTS(_("\n(You might want to write out this file under another name\n")); |
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1696 MSG_PUTS(_("and run diff with the original file to check for changes)")); |
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1697 } |
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1698 else |
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1699 MSG(_("Recovery completed. Buffer contents equals file contents.")); |
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1700 MSG_PUTS(_("\nYou may want to delete the .swp file now.\n\n")); |
7 | 1701 cmdline_row = msg_row; |
1702 } | |
2267 | 1703 #ifdef FEAT_CRYPT |
1704 if (*buf->b_p_key != NUL && STRCMP(curbuf->b_p_key, buf->b_p_key) != 0) | |
1705 { | |
1706 MSG_PUTS(_("Using crypt key from swap file for the text file.\n")); | |
1707 set_option_value((char_u *)"key", 0L, buf->b_p_key, OPT_LOCAL); | |
1708 } | |
1709 #endif | |
7 | 1710 redraw_curbuf_later(NOT_VALID); |
1711 | |
1712 theend: | |
2267 | 1713 vim_free(fname_used); |
7 | 1714 recoverymode = FALSE; |
1715 if (mfp != NULL) | |
1716 { | |
1717 if (hp != NULL) | |
1718 mf_put(mfp, hp, FALSE, FALSE); | |
1719 mf_close(mfp, FALSE); /* will also vim_free(mfp->mf_fname) */ | |
1720 } | |
1053 | 1721 if (buf != NULL) |
1722 { | |
2267 | 1723 #ifdef FEAT_CRYPT |
1724 if (buf->b_p_key != curbuf->b_p_key) | |
1725 free_string_option(buf->b_p_key); | |
2407
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1726 free_string_option(buf->b_p_cm); |
2267 | 1727 #endif |
1053 | 1728 vim_free(buf->b_ml.ml_stack); |
1729 vim_free(buf); | |
1730 } | |
7 | 1731 if (serious_error && called_from_main) |
1732 ml_close(curbuf, TRUE); | |
1733 else | |
1734 { | |
1735 apply_autocmds(EVENT_BUFREADPOST, NULL, curbuf->b_fname, FALSE, curbuf); | |
1736 apply_autocmds(EVENT_BUFWINENTER, NULL, curbuf->b_fname, FALSE, curbuf); | |
1737 } | |
1738 return; | |
1739 } | |
1740 | |
1741 /* | |
1742 * Find the names of swap files in current directory and the directory given | |
1743 * with the 'directory' option. | |
1744 * | |
1745 * Used to: | |
1746 * - list the swap files for "vim -r" | |
1747 * - count the number of swap files when recovering | |
1748 * - list the swap files when recovering | |
1749 * - find the name of the n'th swap file when recovering | |
1750 */ | |
1751 int | |
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1752 recover_names( |
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1753 char_u *fname, /* base for swap file name */ |
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1754 int list, /* when TRUE, list the swap file names */ |
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1755 int nr, /* when non-zero, return nr'th swap file name */ |
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1756 char_u **fname_out) /* result when "nr" > 0 */ |
7 | 1757 { |
1758 int num_names; | |
1759 char_u *(names[6]); | |
1760 char_u *tail; | |
1761 char_u *p; | |
1762 int num_files; | |
1763 int file_count = 0; | |
1764 char_u **files; | |
1765 int i; | |
1766 char_u *dirp; | |
1767 char_u *dir_name; | |
2175 | 1768 char_u *fname_res = NULL; |
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1769 #ifdef HAVE_READLINK |
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1770 char_u fname_buf[MAXPATHL]; |
2175 | 1771 #endif |
1772 | |
1773 if (fname != NULL) | |
1774 { | |
1775 #ifdef HAVE_READLINK | |
2267 | 1776 /* Expand symlink in the file name, because the swap file is created |
1777 * with the actual file instead of with the symlink. */ | |
1778 if (resolve_symlink(fname, fname_buf) == OK) | |
1779 fname_res = fname_buf; | |
1780 else | |
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1781 #endif |
2267 | 1782 fname_res = fname; |
2175 | 1783 } |
7 | 1784 |
1785 if (list) | |
1786 { | |
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1787 /* use msg() to start the scrolling properly */ |
7 | 1788 msg((char_u *)_("Swap files found:")); |
1789 msg_putchar('\n'); | |
1790 } | |
1791 | |
1792 /* | |
1793 * Do the loop for every directory in 'directory'. | |
1794 * First allocate some memory to put the directory name in. | |
1795 */ | |
1796 dir_name = alloc((unsigned)STRLEN(p_dir) + 1); | |
1797 dirp = p_dir; | |
1798 while (dir_name != NULL && *dirp) | |
1799 { | |
1800 /* | |
1801 * Isolate a directory name from *dirp and put it in dir_name (we know | |
1802 * it is large enough, so use 31000 for length). | |
1803 * Advance dirp to next directory name. | |
1804 */ | |
1805 (void)copy_option_part(&dirp, dir_name, 31000, ","); | |
1806 | |
1807 if (dir_name[0] == '.' && dir_name[1] == NUL) /* check current dir */ | |
1808 { | |
2267 | 1809 if (fname == NULL) |
7 | 1810 { |
1811 #ifdef VMS | |
1812 names[0] = vim_strsave((char_u *)"*_sw%"); | |
1813 #else | |
1814 names[0] = vim_strsave((char_u *)"*.sw?"); | |
1815 #endif | |
1005 | 1816 #if defined(UNIX) || defined(WIN3264) |
1817 /* For Unix names starting with a dot are special. MS-Windows | |
1818 * supports this too, on some file systems. */ | |
7 | 1819 names[1] = vim_strsave((char_u *)".*.sw?"); |
1820 names[2] = vim_strsave((char_u *)".sw?"); | |
1821 num_names = 3; | |
1822 #else | |
1823 # ifdef VMS | |
1824 names[1] = vim_strsave((char_u *)".*_sw%"); | |
1825 num_names = 2; | |
1826 # else | |
1827 num_names = 1; | |
1828 # endif | |
1829 #endif | |
1830 } | |
1831 else | |
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1832 num_names = recov_file_names(names, fname_res, TRUE); |
7 | 1833 } |
1834 else /* check directory dir_name */ | |
1835 { | |
2267 | 1836 if (fname == NULL) |
7 | 1837 { |
1838 #ifdef VMS | |
1839 names[0] = concat_fnames(dir_name, (char_u *)"*_sw%", TRUE); | |
1840 #else | |
1841 names[0] = concat_fnames(dir_name, (char_u *)"*.sw?", TRUE); | |
1842 #endif | |
1005 | 1843 #if defined(UNIX) || defined(WIN3264) |
1844 /* For Unix names starting with a dot are special. MS-Windows | |
1845 * supports this too, on some file systems. */ | |
7 | 1846 names[1] = concat_fnames(dir_name, (char_u *)".*.sw?", TRUE); |
1847 names[2] = concat_fnames(dir_name, (char_u *)".sw?", TRUE); | |
1848 num_names = 3; | |
1849 #else | |
1850 # ifdef VMS | |
1851 names[1] = concat_fnames(dir_name, (char_u *)".*_sw%", TRUE); | |
1852 num_names = 2; | |
1853 # else | |
1854 num_names = 1; | |
1855 # endif | |
1856 #endif | |
1857 } | |
1858 else | |
1859 { | |
1860 #if defined(UNIX) || defined(WIN3264) | |
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1861 int len = (int)STRLEN(dir_name); |
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1862 |
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1863 p = dir_name + len; |
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1864 if (after_pathsep(dir_name, p) && len > 1 && p[-1] == p[-2]) |
7 | 1865 { |
1866 /* Ends with '//', Use Full path for swap name */ | |
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1867 tail = make_percent_swname(dir_name, fname_res); |
7 | 1868 } |
1869 else | |
1870 #endif | |
1871 { | |
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1872 tail = gettail(fname_res); |
7 | 1873 tail = concat_fnames(dir_name, tail, TRUE); |
1874 } | |
1875 if (tail == NULL) | |
1876 num_names = 0; | |
1877 else | |
1878 { | |
1879 num_names = recov_file_names(names, tail, FALSE); | |
1880 vim_free(tail); | |
1881 } | |
1882 } | |
1883 } | |
1884 | |
1885 /* check for out-of-memory */ | |
1886 for (i = 0; i < num_names; ++i) | |
1887 { | |
1888 if (names[i] == NULL) | |
1889 { | |
1890 for (i = 0; i < num_names; ++i) | |
1891 vim_free(names[i]); | |
1892 num_names = 0; | |
1893 } | |
1894 } | |
1895 if (num_names == 0) | |
1896 num_files = 0; | |
1897 else if (expand_wildcards(num_names, names, &num_files, &files, | |
1898 EW_KEEPALL|EW_FILE|EW_SILENT) == FAIL) | |
1899 num_files = 0; | |
1900 | |
1901 /* | |
1902 * When no swap file found, wildcard expansion might have failed (e.g. | |
1903 * not able to execute the shell). | |
1904 * Try finding a swap file by simply adding ".swp" to the file name. | |
1905 */ | |
2267 | 1906 if (*dirp == NUL && file_count + num_files == 0 && fname != NULL) |
7 | 1907 { |
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1908 stat_T st; |
7 | 1909 char_u *swapname; |
1910 | |
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1911 swapname = modname(fname_res, |
2823 | 1912 #if defined(VMS) |
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1913 (char_u *)"_swp", FALSE |
7 | 1914 #else |
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1915 (char_u *)".swp", TRUE |
7 | 1916 #endif |
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1917 ); |
7 | 1918 if (swapname != NULL) |
1919 { | |
1920 if (mch_stat((char *)swapname, &st) != -1) /* It exists! */ | |
1921 { | |
1922 files = (char_u **)alloc((unsigned)sizeof(char_u *)); | |
1923 if (files != NULL) | |
1924 { | |
1925 files[0] = swapname; | |
1926 swapname = NULL; | |
1927 num_files = 1; | |
1928 } | |
1929 } | |
1930 vim_free(swapname); | |
1931 } | |
1932 } | |
1933 | |
1934 /* | |
1935 * remove swapfile name of the current buffer, it must be ignored | |
1936 */ | |
1937 if (curbuf->b_ml.ml_mfp != NULL | |
1938 && (p = curbuf->b_ml.ml_mfp->mf_fname) != NULL) | |
1939 { | |
1940 for (i = 0; i < num_files; ++i) | |
1941 if (fullpathcmp(p, files[i], TRUE) & FPC_SAME) | |
1942 { | |
1855 | 1943 /* Remove the name from files[i]. Move further entries |
1944 * down. When the array becomes empty free it here, since | |
1945 * FreeWild() won't be called below. */ | |
7 | 1946 vim_free(files[i]); |
1855 | 1947 if (--num_files == 0) |
1948 vim_free(files); | |
1949 else | |
1950 for ( ; i < num_files; ++i) | |
1951 files[i] = files[i + 1]; | |
7 | 1952 } |
1953 } | |
838 | 1954 if (nr > 0) |
7 | 1955 { |
1956 file_count += num_files; | |
1957 if (nr <= file_count) | |
1958 { | |
2267 | 1959 *fname_out = vim_strsave( |
1960 files[nr - 1 + num_files - file_count]); | |
7 | 1961 dirp = (char_u *)""; /* stop searching */ |
1962 } | |
1963 } | |
1964 else if (list) | |
1965 { | |
1966 if (dir_name[0] == '.' && dir_name[1] == NUL) | |
1967 { | |
2267 | 1968 if (fname == NULL) |
7 | 1969 MSG_PUTS(_(" In current directory:\n")); |
1970 else | |
1971 MSG_PUTS(_(" Using specified name:\n")); | |
1972 } | |
1973 else | |
1974 { | |
1975 MSG_PUTS(_(" In directory ")); | |
1976 msg_home_replace(dir_name); | |
1977 MSG_PUTS(":\n"); | |
1978 } | |
1979 | |
1980 if (num_files) | |
1981 { | |
1982 for (i = 0; i < num_files; ++i) | |
1983 { | |
1984 /* print the swap file name */ | |
1985 msg_outnum((long)++file_count); | |
1986 MSG_PUTS(". "); | |
1987 msg_puts(gettail(files[i])); | |
1988 msg_putchar('\n'); | |
1989 (void)swapfile_info(files[i]); | |
1990 } | |
1991 } | |
1992 else | |
1993 MSG_PUTS(_(" -- none --\n")); | |
1994 out_flush(); | |
1995 } | |
1996 else | |
1997 file_count += num_files; | |
1998 | |
1999 for (i = 0; i < num_names; ++i) | |
2000 vim_free(names[i]); | |
838 | 2001 if (num_files > 0) |
2002 FreeWild(num_files, files); | |
7 | 2003 } |
2004 vim_free(dir_name); | |
2005 return file_count; | |
2006 } | |
2007 | |
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|
2008 #if defined(UNIX) || defined(WIN3264) || defined(PROTO) |
7 | 2009 /* |
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|
2010 * Need _very_ long file names. |
7 | 2011 * Append the full path to name with path separators made into percent |
2012 * signs, to dir. An unnamed buffer is handled as "" (<currentdir>/"") | |
2013 */ | |
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|
2014 char_u * |
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diff
changeset
|
2015 make_percent_swname(char_u *dir, char_u *name) |
7 | 2016 { |
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|
2017 char_u *d = NULL, *s, *f; |
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|
2018 |
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|
2019 f = fix_fname(name != NULL ? name : (char_u *)""); |
7 | 2020 if (f != NULL) |
2021 { | |
2022 s = alloc((unsigned)(STRLEN(f) + 1)); | |
2023 if (s != NULL) | |
2024 { | |
39 | 2025 STRCPY(s, f); |
11127
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patch 8.0.0451: some macros are in lower case
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diff
changeset
|
2026 for (d = s; *d != NUL; MB_PTR_ADV(d)) |
39 | 2027 if (vim_ispathsep(*d)) |
2028 *d = '%'; | |
7 | 2029 d = concat_fnames(dir, s, TRUE); |
2030 vim_free(s); | |
2031 } | |
2032 vim_free(f); | |
2033 } | |
2034 return d; | |
2035 } | |
2036 #endif | |
2037 | |
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changeset
|
2038 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
7 | 2039 static int process_still_running; |
2040 #endif | |
2041 | |
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|
2042 #if defined(FEAT_EVAL) || defined(PROTO) |
7 | 2043 /* |
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2044 * Return information found in swapfile "fname" in dictionary "d". |
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2045 * This is used by the swapinfo() function. |
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2046 */ |
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|
2047 void |
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|
2048 get_b0_dict(char_u *fname, dict_T *d) |
72d6f6f7ead7
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|
2049 { |
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|
2050 int fd; |
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|
2051 struct block0 b0; |
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|
2052 |
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|
2053 if ((fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0)) >= 0) |
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
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|
2054 { |
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|
2055 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
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|
2056 { |
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diff
changeset
|
2057 if (ml_check_b0_id(&b0) == FAIL) |
15267
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diff
changeset
|
2058 dict_add_string(d, "error", (char_u *)"Not a swap file"); |
14601
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|
2059 else if (b0_magic_wrong(&b0)) |
15267
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2060 dict_add_string(d, "error", (char_u *)"Magic number mismatch"); |
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|
2061 else |
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|
2062 { |
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|
2063 /* we have swap information */ |
15267
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patch 8.1.0642: swapinfo() leaks memory
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diff
changeset
|
2064 dict_add_string_len(d, "version", b0.b0_version, 10); |
762fccd84b7c
patch 8.1.0642: swapinfo() leaks memory
Bram Moolenaar <Bram@vim.org>
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|
2065 dict_add_string_len(d, "user", b0.b0_uname, B0_UNAME_SIZE); |
762fccd84b7c
patch 8.1.0642: swapinfo() leaks memory
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2066 dict_add_string_len(d, "host", b0.b0_hname, B0_HNAME_SIZE); |
762fccd84b7c
patch 8.1.0642: swapinfo() leaks memory
Bram Moolenaar <Bram@vim.org>
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changeset
|
2067 dict_add_string_len(d, "fname", b0.b0_fname, B0_FNAME_SIZE_ORG); |
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|
2068 |
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patch 8.1.0313: information about a swap file is unavailable
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|
2069 dict_add_number(d, "pid", char_to_long(b0.b0_pid)); |
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
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diff
changeset
|
2070 dict_add_number(d, "mtime", char_to_long(b0.b0_mtime)); |
14601
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|
2071 dict_add_number(d, "dirty", b0.b0_dirty ? 1 : 0); |
d0ff19a55579
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changeset
|
2072 # ifdef CHECK_INODE |
14599
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Christian Brabandt <cb@256bit.org>
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diff
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|
2073 dict_add_number(d, "inode", char_to_long(b0.b0_ino)); |
14601
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changeset
|
2074 # endif |
14599
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2075 } |
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patch 8.1.0313: information about a swap file is unavailable
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diff
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|
2076 } |
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
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diff
changeset
|
2077 else |
15267
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2078 dict_add_string(d, "error", (char_u *)"Cannot read file"); |
14599
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diff
changeset
|
2079 close(fd); |
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2080 } |
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2081 else |
15267
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2082 dict_add_string(d, "error", (char_u *)"Cannot open file"); |
14599
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patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2083 } |
14601
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2084 #endif |
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patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2085 |
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2086 /* |
580 | 2087 * Give information about an existing swap file. |
7 | 2088 * Returns timestamp (0 when unknown). |
2089 */ | |
2090 static time_t | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2091 swapfile_info(char_u *fname) |
7 | 2092 { |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2093 stat_T st; |
7 | 2094 int fd; |
2095 struct block0 b0; | |
2096 time_t x = (time_t)0; | |
1001 | 2097 char *p; |
7 | 2098 #ifdef UNIX |
2099 char_u uname[B0_UNAME_SIZE]; | |
2100 #endif | |
2101 | |
2102 /* print the swap file date */ | |
2103 if (mch_stat((char *)fname, &st) != -1) | |
2104 { | |
2105 #ifdef UNIX | |
2106 /* print name of owner of the file */ | |
2107 if (mch_get_uname(st.st_uid, uname, B0_UNAME_SIZE) == OK) | |
2108 { | |
2109 MSG_PUTS(_(" owned by: ")); | |
2110 msg_outtrans(uname); | |
2111 MSG_PUTS(_(" dated: ")); | |
2112 } | |
2113 else | |
2114 #endif | |
2115 MSG_PUTS(_(" dated: ")); | |
2116 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
1001 | 2117 p = ctime(&x); /* includes '\n' */ |
2118 if (p == NULL) | |
2119 MSG_PUTS("(invalid)\n"); | |
2120 else | |
2121 MSG_PUTS(p); | |
7 | 2122 } |
2123 | |
2124 /* | |
2125 * print the original file name | |
2126 */ | |
2127 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
2128 if (fd >= 0) | |
2129 { | |
2664 | 2130 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
7 | 2131 { |
2132 if (STRNCMP(b0.b0_version, "VIM 3.0", 7) == 0) | |
2133 { | |
2134 MSG_PUTS(_(" [from Vim version 3.0]")); | |
2135 } | |
2267 | 2136 else if (ml_check_b0_id(&b0) == FAIL) |
7 | 2137 { |
2138 MSG_PUTS(_(" [does not look like a Vim swap file]")); | |
2139 } | |
2140 else | |
2141 { | |
2142 MSG_PUTS(_(" file name: ")); | |
2143 if (b0.b0_fname[0] == NUL) | |
9 | 2144 MSG_PUTS(_("[No Name]")); |
7 | 2145 else |
2146 msg_outtrans(b0.b0_fname); | |
2147 | |
2148 MSG_PUTS(_("\n modified: ")); | |
2149 MSG_PUTS(b0.b0_dirty ? _("YES") : _("no")); | |
2150 | |
2151 if (*(b0.b0_uname) != NUL) | |
2152 { | |
2153 MSG_PUTS(_("\n user name: ")); | |
2154 msg_outtrans(b0.b0_uname); | |
2155 } | |
2156 | |
2157 if (*(b0.b0_hname) != NUL) | |
2158 { | |
2159 if (*(b0.b0_uname) != NUL) | |
2160 MSG_PUTS(_(" host name: ")); | |
2161 else | |
2162 MSG_PUTS(_("\n host name: ")); | |
2163 msg_outtrans(b0.b0_hname); | |
2164 } | |
2165 | |
2166 if (char_to_long(b0.b0_pid) != 0L) | |
2167 { | |
2168 MSG_PUTS(_("\n process ID: ")); | |
2169 msg_outnum(char_to_long(b0.b0_pid)); | |
9536
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2170 #if defined(UNIX) |
7 | 2171 /* EMX kill() not working correctly, it seems */ |
2172 if (kill((pid_t)char_to_long(b0.b0_pid), 0) == 0) | |
2173 { | |
14923
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patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
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14909
diff
changeset
|
2174 MSG_PUTS(_(" (STILL RUNNING)")); |
7 | 2175 # if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) |
2176 process_still_running = TRUE; | |
2177 # endif | |
2178 } | |
2179 #endif | |
2180 } | |
2181 | |
2182 if (b0_magic_wrong(&b0)) | |
2183 { | |
8212
05b88224cea1
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Christian Brabandt <cb@256bit.org>
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7961
diff
changeset
|
2184 #if defined(MSWIN) |
7 | 2185 if (STRNCMP(b0.b0_hname, "PC ", 3) == 0) |
2186 MSG_PUTS(_("\n [not usable with this version of Vim]")); | |
2187 else | |
2188 #endif | |
2189 MSG_PUTS(_("\n [not usable on this computer]")); | |
2190 } | |
2191 } | |
2192 } | |
2193 else | |
2194 MSG_PUTS(_(" [cannot be read]")); | |
2195 close(fd); | |
2196 } | |
2197 else | |
2198 MSG_PUTS(_(" [cannot be opened]")); | |
2199 msg_putchar('\n'); | |
2200 | |
2201 return x; | |
2202 } | |
2203 | |
2204 static int | |
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Christian Brabandt <cb@256bit.org>
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7803
diff
changeset
|
2205 recov_file_names(char_u **names, char_u *path, int prepend_dot) |
7 | 2206 { |
2207 int num_names; | |
2208 | |
2209 /* | |
2210 * (Win32 and Win64) never short names, but do prepend a dot. | |
2211 * (Not MS-DOS or Win32 or Win64) maybe short name, maybe not: Try both. | |
2212 * Only use the short name if it is different. | |
2213 */ | |
2214 char_u *p; | |
2215 int i; | |
2216 # ifndef WIN3264 | |
2217 int shortname = curbuf->b_shortname; | |
2218 | |
2219 curbuf->b_shortname = FALSE; | |
2220 # endif | |
2221 | |
2222 num_names = 0; | |
2223 | |
2224 /* | |
2225 * May also add the file name with a dot prepended, for swap file in same | |
2226 * dir as original file. | |
2227 */ | |
2228 if (prepend_dot) | |
2229 { | |
2230 names[num_names] = modname(path, (char_u *)".sw?", TRUE); | |
2231 if (names[num_names] == NULL) | |
2232 goto end; | |
2233 ++num_names; | |
2234 } | |
2235 | |
2236 /* | |
2237 * Form the normal swap file name pattern by appending ".sw?". | |
2238 */ | |
2239 #ifdef VMS | |
2240 names[num_names] = concat_fnames(path, (char_u *)"_sw%", FALSE); | |
2241 #else | |
2242 names[num_names] = concat_fnames(path, (char_u *)".sw?", FALSE); | |
2243 #endif | |
2244 if (names[num_names] == NULL) | |
2245 goto end; | |
2246 if (num_names >= 1) /* check if we have the same name twice */ | |
2247 { | |
2248 p = names[num_names - 1]; | |
2249 i = (int)STRLEN(names[num_names - 1]) - (int)STRLEN(names[num_names]); | |
2250 if (i > 0) | |
2251 p += i; /* file name has been expanded to full path */ | |
2252 | |
2253 if (STRCMP(p, names[num_names]) != 0) | |
2254 ++num_names; | |
2255 else | |
2256 vim_free(names[num_names]); | |
2257 } | |
2258 else | |
2259 ++num_names; | |
2260 | |
2261 # ifndef WIN3264 | |
2262 /* | |
2263 * Also try with 'shortname' set, in case the file is on a DOS filesystem. | |
2264 */ | |
2265 curbuf->b_shortname = TRUE; | |
2266 #ifdef VMS | |
2267 names[num_names] = modname(path, (char_u *)"_sw%", FALSE); | |
2268 #else | |
2269 names[num_names] = modname(path, (char_u *)".sw?", FALSE); | |
2270 #endif | |
2271 if (names[num_names] == NULL) | |
2272 goto end; | |
2273 | |
2274 /* | |
2275 * Remove the one from 'shortname', if it's the same as with 'noshortname'. | |
2276 */ | |
2277 p = names[num_names]; | |
2278 i = STRLEN(names[num_names]) - STRLEN(names[num_names - 1]); | |
2279 if (i > 0) | |
2280 p += i; /* file name has been expanded to full path */ | |
2281 if (STRCMP(names[num_names - 1], p) == 0) | |
2282 vim_free(names[num_names]); | |
2283 else | |
2284 ++num_names; | |
2285 # endif | |
2286 | |
2287 end: | |
2288 # ifndef WIN3264 | |
2289 curbuf->b_shortname = shortname; | |
2290 # endif | |
2291 | |
2292 return num_names; | |
2293 } | |
2294 | |
2295 /* | |
2296 * sync all memlines | |
2297 * | |
2298 * If 'check_file' is TRUE, check if original file exists and was not changed. | |
2299 * If 'check_char' is TRUE, stop syncing when character becomes available, but | |
2300 * always sync at least one block. | |
2301 */ | |
2302 void | |
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parents:
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diff
changeset
|
2303 ml_sync_all(int check_file, int check_char) |
7 | 2304 { |
2305 buf_T *buf; | |
9387
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Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2306 stat_T st; |
7 | 2307 |
9649
fd9727ae3c49
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parents:
9536
diff
changeset
|
2308 FOR_ALL_BUFFERS(buf) |
7 | 2309 { |
2310 if (buf->b_ml.ml_mfp == NULL || buf->b_ml.ml_mfp->mf_fname == NULL) | |
2311 continue; /* no file */ | |
2312 | |
2313 ml_flush_line(buf); /* flush buffered line */ | |
2314 /* flush locked block */ | |
2315 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); | |
2316 if (bufIsChanged(buf) && check_file && mf_need_trans(buf->b_ml.ml_mfp) | |
2317 && buf->b_ffname != NULL) | |
2318 { | |
2319 /* | |
2320 * If the original file does not exist anymore or has been changed | |
2321 * call ml_preserve() to get rid of all negative numbered blocks. | |
2322 */ | |
2323 if (mch_stat((char *)buf->b_ffname, &st) == -1 | |
2324 || st.st_mtime != buf->b_mtime_read | |
2241
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diff
changeset
|
2325 || st.st_size != buf->b_orig_size) |
7 | 2326 { |
2327 ml_preserve(buf, FALSE); | |
2328 did_check_timestamps = FALSE; | |
2329 need_check_timestamps = TRUE; /* give message later */ | |
2330 } | |
2331 } | |
2332 if (buf->b_ml.ml_mfp->mf_dirty) | |
2333 { | |
2334 (void)mf_sync(buf->b_ml.ml_mfp, (check_char ? MFS_STOP : 0) | |
2335 | (bufIsChanged(buf) ? MFS_FLUSH : 0)); | |
2336 if (check_char && ui_char_avail()) /* character available now */ | |
2337 break; | |
2338 } | |
2339 } | |
2340 } | |
2341 | |
2342 /* | |
2343 * sync one buffer, including negative blocks | |
2344 * | |
2345 * after this all the blocks are in the swap file | |
2346 * | |
2347 * Used for the :preserve command and when the original file has been | |
2348 * changed or deleted. | |
2349 * | |
2350 * when message is TRUE the success of preserving is reported | |
2351 */ | |
2352 void | |
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parents:
7803
diff
changeset
|
2353 ml_preserve(buf_T *buf, int message) |
7 | 2354 { |
2355 bhdr_T *hp; | |
2356 linenr_T lnum; | |
2357 memfile_T *mfp = buf->b_ml.ml_mfp; | |
2358 int status; | |
2359 int got_int_save = got_int; | |
2360 | |
2361 if (mfp == NULL || mfp->mf_fname == NULL) | |
2362 { | |
2363 if (message) | |
2364 EMSG(_("E313: Cannot preserve, there is no swap file")); | |
2365 return; | |
2366 } | |
2367 | |
2368 /* We only want to stop when interrupted here, not when interrupted | |
2369 * before. */ | |
2370 got_int = FALSE; | |
2371 | |
2372 ml_flush_line(buf); /* flush buffered line */ | |
2373 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
2374 status = mf_sync(mfp, MFS_ALL | MFS_FLUSH); | |
2375 | |
2376 /* stack is invalid after mf_sync(.., MFS_ALL) */ | |
2377 buf->b_ml.ml_stack_top = 0; | |
2378 | |
2379 /* | |
2380 * Some of the data blocks may have been changed from negative to | |
2381 * positive block number. In that case the pointer blocks need to be | |
2382 * updated. | |
2383 * | |
2384 * We don't know in which pointer block the references are, so we visit | |
2385 * all data blocks until there are no more translations to be done (or | |
2386 * we hit the end of the file, which can only happen in case a write fails, | |
2387 * e.g. when file system if full). | |
2388 * ml_find_line() does the work by translating the negative block numbers | |
2389 * when getting the first line of each data block. | |
2390 */ | |
2391 if (mf_need_trans(mfp) && !got_int) | |
2392 { | |
2393 lnum = 1; | |
2394 while (mf_need_trans(mfp) && lnum <= buf->b_ml.ml_line_count) | |
2395 { | |
2396 hp = ml_find_line(buf, lnum, ML_FIND); | |
2397 if (hp == NULL) | |
2398 { | |
2399 status = FAIL; | |
2400 goto theend; | |
2401 } | |
2402 CHECK(buf->b_ml.ml_locked_low != lnum, "low != lnum"); | |
2403 lnum = buf->b_ml.ml_locked_high + 1; | |
2404 } | |
2405 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
2406 /* sync the updated pointer blocks */ | |
2407 if (mf_sync(mfp, MFS_ALL | MFS_FLUSH) == FAIL) | |
2408 status = FAIL; | |
2409 buf->b_ml.ml_stack_top = 0; /* stack is invalid now */ | |
2410 } | |
2411 theend: | |
2412 got_int |= got_int_save; | |
2413 | |
2414 if (message) | |
2415 { | |
2416 if (status == OK) | |
2417 MSG(_("File preserved")); | |
2418 else | |
2419 EMSG(_("E314: Preserve failed")); | |
2420 } | |
2421 } | |
2422 | |
2423 /* | |
2424 * NOTE: The pointer returned by the ml_get_*() functions only remains valid | |
2425 * until the next call! | |
2426 * line1 = ml_get(1); | |
2427 * line2 = ml_get(2); // line1 is now invalid! | |
2428 * Make a copy of the line if necessary. | |
2429 */ | |
2430 /* | |
2657 | 2431 * Return a pointer to a (read-only copy of a) line. |
7 | 2432 * |
2433 * On failure an error message is given and IObuff is returned (to avoid | |
2434 * having to check for error everywhere). | |
2435 */ | |
2436 char_u * | |
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diff
changeset
|
2437 ml_get(linenr_T lnum) |
7 | 2438 { |
2439 return ml_get_buf(curbuf, lnum, FALSE); | |
2440 } | |
2441 | |
2442 /* | |
2657 | 2443 * Return pointer to position "pos". |
7 | 2444 */ |
2445 char_u * | |
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diff
changeset
|
2446 ml_get_pos(pos_T *pos) |
7 | 2447 { |
2448 return (ml_get_buf(curbuf, pos->lnum, FALSE) + pos->col); | |
2449 } | |
2450 | |
2451 /* | |
2657 | 2452 * Return pointer to cursor line. |
7 | 2453 */ |
2454 char_u * | |
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diff
changeset
|
2455 ml_get_curline(void) |
7 | 2456 { |
2457 return ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE); | |
2458 } | |
2459 | |
2460 /* | |
2657 | 2461 * Return pointer to cursor position. |
7 | 2462 */ |
2463 char_u * | |
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diff
changeset
|
2464 ml_get_cursor(void) |
7 | 2465 { |
2466 return (ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE) + | |
2467 curwin->w_cursor.col); | |
2468 } | |
2469 | |
2470 /* | |
2657 | 2471 * Return a pointer to a line in a specific buffer |
7 | 2472 * |
2473 * "will_change": if TRUE mark the buffer dirty (chars in the line will be | |
2474 * changed) | |
2475 */ | |
2476 char_u * | |
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diff
changeset
|
2477 ml_get_buf( |
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diff
changeset
|
2478 buf_T *buf, |
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diff
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|
2479 linenr_T lnum, |
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diff
changeset
|
2480 int will_change) /* line will be changed */ |
7 | 2481 { |
1068 | 2482 bhdr_T *hp; |
2483 DATA_BL *dp; | |
2484 static int recursive = 0; | |
7 | 2485 |
2486 if (lnum > buf->b_ml.ml_line_count) /* invalid line number */ | |
2487 { | |
1068 | 2488 if (recursive == 0) |
2489 { | |
2490 /* Avoid giving this message for a recursive call, may happen when | |
2491 * the GUI redraws part of the text. */ | |
2492 ++recursive; | |
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diff
changeset
|
2493 IEMSGN(_("E315: ml_get: invalid lnum: %ld"), lnum); |
1068 | 2494 --recursive; |
2495 } | |
7 | 2496 errorret: |
2497 STRCPY(IObuff, "???"); | |
2498 return IObuff; | |
2499 } | |
2500 if (lnum <= 0) /* pretend line 0 is line 1 */ | |
2501 lnum = 1; | |
2502 | |
2503 if (buf->b_ml.ml_mfp == NULL) /* there are no lines */ | |
2504 return (char_u *)""; | |
2505 | |
2108
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|
2506 /* |
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|
2507 * See if it is the same line as requested last time. |
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diff
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|
2508 * Otherwise may need to flush last used line. |
3cdf2a653e00
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|
2509 * Don't use the last used line when 'swapfile' is reset, need to load all |
3cdf2a653e00
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diff
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|
2510 * blocks. |
3cdf2a653e00
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diff
changeset
|
2511 */ |
1066 | 2512 if (buf->b_ml.ml_line_lnum != lnum || mf_dont_release) |
7 | 2513 { |
15138
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|
2514 unsigned start, end; |
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changeset
|
2515 colnr_T len; |
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diff
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|
2516 int idx; |
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diff
changeset
|
2517 |
7 | 2518 ml_flush_line(buf); |
2519 | |
2520 /* | |
2521 * Find the data block containing the line. | |
2522 * This also fills the stack with the blocks from the root to the data | |
2523 * block and releases any locked block. | |
2524 */ | |
2525 if ((hp = ml_find_line(buf, lnum, ML_FIND)) == NULL) | |
2526 { | |
1068 | 2527 if (recursive == 0) |
2528 { | |
2529 /* Avoid giving this message for a recursive call, may happen | |
2530 * when the GUI redraws part of the text. */ | |
2531 ++recursive; | |
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10042
diff
changeset
|
2532 IEMSGN(_("E316: ml_get: cannot find line %ld"), lnum); |
1068 | 2533 --recursive; |
2534 } | |
7 | 2535 goto errorret; |
2536 } | |
2537 | |
2538 dp = (DATA_BL *)(hp->bh_data); | |
2539 | |
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diff
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|
2540 idx = lnum - buf->b_ml.ml_locked_low; |
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diff
changeset
|
2541 start = ((dp->db_index[idx]) & DB_INDEX_MASK); |
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|
2542 // The text ends where the previous line starts. The first line ends |
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|
2543 // at the end of the block. |
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|
2544 if (idx == 0) |
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diff
changeset
|
2545 end = dp->db_txt_end; |
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|
2546 else |
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changeset
|
2547 end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); |
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|
2548 len = end - start; |
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2549 |
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|
2550 buf->b_ml.ml_line_ptr = (char_u *)dp + start; |
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changeset
|
2551 buf->b_ml.ml_line_len = len; |
7 | 2552 buf->b_ml.ml_line_lnum = lnum; |
2553 buf->b_ml.ml_flags &= ~ML_LINE_DIRTY; | |
2554 } | |
2555 if (will_change) | |
2556 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
2557 | |
2558 return buf->b_ml.ml_line_ptr; | |
2559 } | |
2560 | |
2561 /* | |
2562 * Check if a line that was just obtained by a call to ml_get | |
2563 * is in allocated memory. | |
2564 */ | |
2565 int | |
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diff
changeset
|
2566 ml_line_alloced(void) |
7 | 2567 { |
2568 return (curbuf->b_ml.ml_flags & ML_LINE_DIRTY); | |
2569 } | |
2570 | |
2571 /* | |
2572 * Append a line after lnum (may be 0 to insert a line in front of the file). | |
2573 * "line" does not need to be allocated, but can't be another line in a | |
2574 * buffer, unlocking may make it invalid. | |
2575 * | |
2576 * newfile: TRUE when starting to edit a new file, meaning that pe_old_lnum | |
2577 * will be set for recovery | |
2578 * Check: The caller of this function should probably also call | |
2579 * appended_lines(). | |
2580 * | |
2581 * return FAIL for failure, OK otherwise | |
2582 */ | |
2583 int | |
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diff
changeset
|
2584 ml_append( |
41789f16d6b2
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diff
changeset
|
2585 linenr_T lnum, /* append after this line (can be 0) */ |
41789f16d6b2
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diff
changeset
|
2586 char_u *line, /* text of the new line */ |
41789f16d6b2
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7803
diff
changeset
|
2587 colnr_T len, /* length of new line, including NUL, or 0 */ |
41789f16d6b2
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parents:
7803
diff
changeset
|
2588 int newfile) /* flag, see above */ |
7 | 2589 { |
2590 /* When starting up, we might still need to create the memfile */ | |
2394
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diff
changeset
|
2591 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
7 | 2592 return FAIL; |
2593 | |
2594 if (curbuf->b_ml.ml_line_lnum != 0) | |
2595 ml_flush_line(curbuf); | |
2596 return ml_append_int(curbuf, lnum, line, len, newfile, FALSE); | |
2597 } | |
2598 | |
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diff
changeset
|
2599 #if defined(FEAT_SPELL) || defined(FEAT_QUICKFIX) || defined(PROTO) |
625 | 2600 /* |
2601 * Like ml_append() but for an arbitrary buffer. The buffer must already have | |
2602 * a memline. | |
2603 */ | |
2604 int | |
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diff
changeset
|
2605 ml_append_buf( |
41789f16d6b2
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diff
changeset
|
2606 buf_T *buf, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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7803
diff
changeset
|
2607 linenr_T lnum, /* append after this line (can be 0) */ |
41789f16d6b2
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parents:
7803
diff
changeset
|
2608 char_u *line, /* text of the new line */ |
41789f16d6b2
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diff
changeset
|
2609 colnr_T len, /* length of new line, including NUL, or 0 */ |
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|
2610 int newfile) /* flag, see above */ |
625 | 2611 { |
2612 if (buf->b_ml.ml_mfp == NULL) | |
2613 return FAIL; | |
2614 | |
2615 if (buf->b_ml.ml_line_lnum != 0) | |
2616 ml_flush_line(buf); | |
2617 return ml_append_int(buf, lnum, line, len, newfile, FALSE); | |
2618 } | |
2619 #endif | |
2620 | |
7 | 2621 static int |
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diff
changeset
|
2622 ml_append_int( |
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diff
changeset
|
2623 buf_T *buf, |
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2624 linenr_T lnum, // append after this line (can be 0) |
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2625 char_u *line, // text of the new line |
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2626 colnr_T len_arg, // length of line, including NUL, or 0 |
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2627 int newfile, // flag, see above |
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2628 int mark) // mark the new line |
7 | 2629 { |
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2630 colnr_T len = len_arg; // length of line, including NUL, or 0 |
7 | 2631 int i; |
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2632 int line_count; // number of indexes in current block |
7 | 2633 int offset; |
2634 int from, to; | |
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2635 int space_needed; // space needed for new line |
7 | 2636 int page_size; |
2637 int page_count; | |
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2638 int db_idx; // index for lnum in data block |
7 | 2639 bhdr_T *hp; |
2640 memfile_T *mfp; | |
2641 DATA_BL *dp; | |
2642 PTR_BL *pp; | |
2643 infoptr_T *ip; | |
2644 | |
2645 /* lnum out of range */ | |
2646 if (lnum > buf->b_ml.ml_line_count || buf->b_ml.ml_mfp == NULL) | |
2647 return FAIL; | |
2648 | |
2649 if (lowest_marked && lowest_marked > lnum) | |
2650 lowest_marked = lnum + 1; | |
2651 | |
2652 if (len == 0) | |
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2653 len = (colnr_T)STRLEN(line) + 1; // space needed for the text |
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2654 space_needed = len + INDEX_SIZE; // space needed for text + index |
7 | 2655 |
2656 mfp = buf->b_ml.ml_mfp; | |
2657 page_size = mfp->mf_page_size; | |
2658 | |
2659 /* | |
2660 * find the data block containing the previous line | |
2661 * This also fills the stack with the blocks from the root to the data block | |
2662 * This also releases any locked block. | |
2663 */ | |
2664 if ((hp = ml_find_line(buf, lnum == 0 ? (linenr_T)1 : lnum, | |
2665 ML_INSERT)) == NULL) | |
2666 return FAIL; | |
2667 | |
2668 buf->b_ml.ml_flags &= ~ML_EMPTY; | |
2669 | |
2670 if (lnum == 0) /* got line one instead, correct db_idx */ | |
2671 db_idx = -1; /* careful, it is negative! */ | |
2672 else | |
2673 db_idx = lnum - buf->b_ml.ml_locked_low; | |
2674 /* get line count before the insertion */ | |
2675 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
2676 | |
2677 dp = (DATA_BL *)(hp->bh_data); | |
2678 | |
2679 /* | |
2680 * If | |
2681 * - there is not enough room in the current block | |
2682 * - appending to the last line in the block | |
2683 * - not appending to the last line in the file | |
2684 * insert in front of the next block. | |
2685 */ | |
2686 if ((int)dp->db_free < space_needed && db_idx == line_count - 1 | |
2687 && lnum < buf->b_ml.ml_line_count) | |
2688 { | |
2689 /* | |
2690 * Now that the line is not going to be inserted in the block that we | |
2691 * expected, the line count has to be adjusted in the pointer blocks | |
2692 * by using ml_locked_lineadd. | |
2693 */ | |
2694 --(buf->b_ml.ml_locked_lineadd); | |
2695 --(buf->b_ml.ml_locked_high); | |
2696 if ((hp = ml_find_line(buf, lnum + 1, ML_INSERT)) == NULL) | |
2697 return FAIL; | |
2698 | |
2699 db_idx = -1; /* careful, it is negative! */ | |
2700 /* get line count before the insertion */ | |
2701 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
2702 CHECK(buf->b_ml.ml_locked_low != lnum + 1, "locked_low != lnum + 1"); | |
2703 | |
2704 dp = (DATA_BL *)(hp->bh_data); | |
2705 } | |
2706 | |
2707 ++buf->b_ml.ml_line_count; | |
2708 | |
2709 if ((int)dp->db_free >= space_needed) /* enough room in data block */ | |
2710 { | |
2711 /* | |
2712 * Insert new line in existing data block, or in data block allocated above. | |
2713 */ | |
2714 dp->db_txt_start -= len; | |
2715 dp->db_free -= space_needed; | |
2716 ++(dp->db_line_count); | |
2717 | |
2718 /* | |
2719 * move the text of the lines that follow to the front | |
2720 * adjust the indexes of the lines that follow | |
2721 */ | |
2722 if (line_count > db_idx + 1) /* if there are following lines */ | |
2723 { | |
2724 /* | |
2725 * Offset is the start of the previous line. | |
2726 * This will become the character just after the new line. | |
2727 */ | |
2728 if (db_idx < 0) | |
2729 offset = dp->db_txt_end; | |
2730 else | |
2731 offset = ((dp->db_index[db_idx]) & DB_INDEX_MASK); | |
2732 mch_memmove((char *)dp + dp->db_txt_start, | |
2733 (char *)dp + dp->db_txt_start + len, | |
2734 (size_t)(offset - (dp->db_txt_start + len))); | |
2735 for (i = line_count - 1; i > db_idx; --i) | |
2736 dp->db_index[i + 1] = dp->db_index[i] - len; | |
2737 dp->db_index[db_idx + 1] = offset - len; | |
2738 } | |
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2739 else |
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changeset
|
2740 // add line at the end (which is the start of the text) |
7 | 2741 dp->db_index[db_idx + 1] = dp->db_txt_start; |
2742 | |
2743 /* | |
2744 * copy the text into the block | |
2745 */ | |
2746 mch_memmove((char *)dp + dp->db_index[db_idx + 1], line, (size_t)len); | |
2747 if (mark) | |
2748 dp->db_index[db_idx + 1] |= DB_MARKED; | |
2749 | |
2750 /* | |
2751 * Mark the block dirty. | |
2752 */ | |
2753 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
2754 if (!newfile) | |
2755 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
2756 } | |
2757 else /* not enough space in data block */ | |
2758 { | |
2759 /* | |
2760 * If there is not enough room we have to create a new data block and copy some | |
2761 * lines into it. | |
2762 * Then we have to insert an entry in the pointer block. | |
2763 * If this pointer block also is full, we go up another block, and so on, up | |
2764 * to the root if necessary. | |
2765 * The line counts in the pointer blocks have already been adjusted by | |
2766 * ml_find_line(). | |
2767 */ | |
2768 long line_count_left, line_count_right; | |
2769 int page_count_left, page_count_right; | |
2770 bhdr_T *hp_left; | |
2771 bhdr_T *hp_right; | |
2772 bhdr_T *hp_new; | |
2773 int lines_moved; | |
2774 int data_moved = 0; /* init to shut up gcc */ | |
2775 int total_moved = 0; /* init to shut up gcc */ | |
2776 DATA_BL *dp_right, *dp_left; | |
2777 int stack_idx; | |
2778 int in_left; | |
2779 int lineadd; | |
2780 blocknr_T bnum_left, bnum_right; | |
2781 linenr_T lnum_left, lnum_right; | |
2782 int pb_idx; | |
2783 PTR_BL *pp_new; | |
2784 | |
2785 /* | |
2786 * We are going to allocate a new data block. Depending on the | |
2787 * situation it will be put to the left or right of the existing | |
2788 * block. If possible we put the new line in the left block and move | |
2789 * the lines after it to the right block. Otherwise the new line is | |
2790 * also put in the right block. This method is more efficient when | |
2791 * inserting a lot of lines at one place. | |
2792 */ | |
2793 if (db_idx < 0) /* left block is new, right block is existing */ | |
2794 { | |
2795 lines_moved = 0; | |
2796 in_left = TRUE; | |
2797 /* space_needed does not change */ | |
2798 } | |
2799 else /* left block is existing, right block is new */ | |
2800 { | |
2801 lines_moved = line_count - db_idx - 1; | |
2802 if (lines_moved == 0) | |
2803 in_left = FALSE; /* put new line in right block */ | |
2804 /* space_needed does not change */ | |
2805 else | |
2806 { | |
2807 data_moved = ((dp->db_index[db_idx]) & DB_INDEX_MASK) - | |
2808 dp->db_txt_start; | |
2809 total_moved = data_moved + lines_moved * INDEX_SIZE; | |
2810 if ((int)dp->db_free + total_moved >= space_needed) | |
2811 { | |
2812 in_left = TRUE; /* put new line in left block */ | |
2813 space_needed = total_moved; | |
2814 } | |
2815 else | |
2816 { | |
2817 in_left = FALSE; /* put new line in right block */ | |
2818 space_needed += total_moved; | |
2819 } | |
2820 } | |
2821 } | |
2822 | |
2823 page_count = ((space_needed + HEADER_SIZE) + page_size - 1) / page_size; | |
2824 if ((hp_new = ml_new_data(mfp, newfile, page_count)) == NULL) | |
2825 { | |
2826 /* correct line counts in pointer blocks */ | |
2827 --(buf->b_ml.ml_locked_lineadd); | |
2828 --(buf->b_ml.ml_locked_high); | |
2829 return FAIL; | |
2830 } | |
2831 if (db_idx < 0) /* left block is new */ | |
2832 { | |
2833 hp_left = hp_new; | |
2834 hp_right = hp; | |
2835 line_count_left = 0; | |
2836 line_count_right = line_count; | |
2837 } | |
2838 else /* right block is new */ | |
2839 { | |
2840 hp_left = hp; | |
2841 hp_right = hp_new; | |
2842 line_count_left = line_count; | |
2843 line_count_right = 0; | |
2844 } | |
2845 dp_right = (DATA_BL *)(hp_right->bh_data); | |
2846 dp_left = (DATA_BL *)(hp_left->bh_data); | |
2847 bnum_left = hp_left->bh_bnum; | |
2848 bnum_right = hp_right->bh_bnum; | |
2849 page_count_left = hp_left->bh_page_count; | |
2850 page_count_right = hp_right->bh_page_count; | |
2851 | |
2852 /* | |
2853 * May move the new line into the right/new block. | |
2854 */ | |
2855 if (!in_left) | |
2856 { | |
2857 dp_right->db_txt_start -= len; | |
2858 dp_right->db_free -= len + INDEX_SIZE; | |
2859 dp_right->db_index[0] = dp_right->db_txt_start; | |
2860 if (mark) | |
2861 dp_right->db_index[0] |= DB_MARKED; | |
2862 | |
2863 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
2864 line, (size_t)len); | |
2865 ++line_count_right; | |
2866 } | |
2867 /* | |
2868 * may move lines from the left/old block to the right/new one. | |
2869 */ | |
2870 if (lines_moved) | |
2871 { | |
2872 /* | |
2873 */ | |
2874 dp_right->db_txt_start -= data_moved; | |
2875 dp_right->db_free -= total_moved; | |
2876 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
2877 (char *)dp_left + dp_left->db_txt_start, | |
2878 (size_t)data_moved); | |
2879 offset = dp_right->db_txt_start - dp_left->db_txt_start; | |
2880 dp_left->db_txt_start += data_moved; | |
2881 dp_left->db_free += total_moved; | |
2882 | |
2883 /* | |
2884 * update indexes in the new block | |
2885 */ | |
2886 for (to = line_count_right, from = db_idx + 1; | |
2887 from < line_count_left; ++from, ++to) | |
2888 dp_right->db_index[to] = dp->db_index[from] + offset; | |
2889 line_count_right += lines_moved; | |
2890 line_count_left -= lines_moved; | |
2891 } | |
2892 | |
2893 /* | |
2894 * May move the new line into the left (old or new) block. | |
2895 */ | |
2896 if (in_left) | |
2897 { | |
2898 dp_left->db_txt_start -= len; | |
2899 dp_left->db_free -= len + INDEX_SIZE; | |
2900 dp_left->db_index[line_count_left] = dp_left->db_txt_start; | |
2901 if (mark) | |
2902 dp_left->db_index[line_count_left] |= DB_MARKED; | |
2903 mch_memmove((char *)dp_left + dp_left->db_txt_start, | |
2904 line, (size_t)len); | |
2905 ++line_count_left; | |
2906 } | |
2907 | |
2908 if (db_idx < 0) /* left block is new */ | |
2909 { | |
2910 lnum_left = lnum + 1; | |
2911 lnum_right = 0; | |
2912 } | |
2913 else /* right block is new */ | |
2914 { | |
2915 lnum_left = 0; | |
2916 if (in_left) | |
2917 lnum_right = lnum + 2; | |
2918 else | |
2919 lnum_right = lnum + 1; | |
2920 } | |
2921 dp_left->db_line_count = line_count_left; | |
2922 dp_right->db_line_count = line_count_right; | |
2923 | |
2924 /* | |
2925 * release the two data blocks | |
2926 * The new one (hp_new) already has a correct blocknumber. | |
2927 * The old one (hp, in ml_locked) gets a positive blocknumber if | |
2928 * we changed it and we are not editing a new file. | |
2929 */ | |
2930 if (lines_moved || in_left) | |
2931 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
2932 if (!newfile && db_idx >= 0 && in_left) | |
2933 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
2934 mf_put(mfp, hp_new, TRUE, FALSE); | |
2935 | |
2936 /* | |
2937 * flush the old data block | |
2938 * set ml_locked_lineadd to 0, because the updating of the | |
2939 * pointer blocks is done below | |
2940 */ | |
2941 lineadd = buf->b_ml.ml_locked_lineadd; | |
2942 buf->b_ml.ml_locked_lineadd = 0; | |
2943 ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush data block */ | |
2944 | |
2945 /* | |
2946 * update pointer blocks for the new data block | |
2947 */ | |
2948 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; | |
2949 --stack_idx) | |
2950 { | |
2951 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
2952 pb_idx = ip->ip_index; | |
2953 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
2954 return FAIL; | |
2955 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
2956 if (pp->pb_id != PTR_ID) | |
2957 { | |
10359
66f1b5bf3fa6
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2958 IEMSG(_("E317: pointer block id wrong 3")); |
7 | 2959 mf_put(mfp, hp, FALSE, FALSE); |
2960 return FAIL; | |
2961 } | |
2962 /* | |
2963 * TODO: If the pointer block is full and we are adding at the end | |
2964 * try to insert in front of the next block | |
2965 */ | |
2966 /* block not full, add one entry */ | |
2967 if (pp->pb_count < pp->pb_count_max) | |
2968 { | |
2969 if (pb_idx + 1 < (int)pp->pb_count) | |
2970 mch_memmove(&pp->pb_pointer[pb_idx + 2], | |
2971 &pp->pb_pointer[pb_idx + 1], | |
2972 (size_t)(pp->pb_count - pb_idx - 1) * sizeof(PTR_EN)); | |
2973 ++pp->pb_count; | |
2974 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
2975 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
2976 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
2977 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
2978 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
2979 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
2980 | |
2981 if (lnum_left != 0) | |
2982 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
2983 if (lnum_right != 0) | |
2984 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
2985 | |
2986 mf_put(mfp, hp, TRUE, FALSE); | |
2987 buf->b_ml.ml_stack_top = stack_idx + 1; /* truncate stack */ | |
2988 | |
2989 if (lineadd) | |
2990 { | |
2991 --(buf->b_ml.ml_stack_top); | |
1167 | 2992 /* fix line count for rest of blocks in the stack */ |
7 | 2993 ml_lineadd(buf, lineadd); |
2994 /* fix stack itself */ | |
2995 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
2996 lineadd; | |
2997 ++(buf->b_ml.ml_stack_top); | |
2998 } | |
2999 | |
3000 /* | |
3001 * We are finished, break the loop here. | |
3002 */ | |
3003 break; | |
3004 } | |
3005 else /* pointer block full */ | |
3006 { | |
3007 /* | |
3008 * split the pointer block | |
3009 * allocate a new pointer block | |
3010 * move some of the pointer into the new block | |
3011 * prepare for updating the parent block | |
3012 */ | |
3013 for (;;) /* do this twice when splitting block 1 */ | |
3014 { | |
3015 hp_new = ml_new_ptr(mfp); | |
3016 if (hp_new == NULL) /* TODO: try to fix tree */ | |
3017 return FAIL; | |
3018 pp_new = (PTR_BL *)(hp_new->bh_data); | |
3019 | |
3020 if (hp->bh_bnum != 1) | |
3021 break; | |
3022 | |
3023 /* | |
3024 * if block 1 becomes full the tree is given an extra level | |
3025 * The pointers from block 1 are moved into the new block. | |
3026 * block 1 is updated to point to the new block | |
3027 * then continue to split the new block | |
3028 */ | |
3029 mch_memmove(pp_new, pp, (size_t)page_size); | |
3030 pp->pb_count = 1; | |
3031 pp->pb_pointer[0].pe_bnum = hp_new->bh_bnum; | |
3032 pp->pb_pointer[0].pe_line_count = buf->b_ml.ml_line_count; | |
3033 pp->pb_pointer[0].pe_old_lnum = 1; | |
3034 pp->pb_pointer[0].pe_page_count = 1; | |
3035 mf_put(mfp, hp, TRUE, FALSE); /* release block 1 */ | |
3036 hp = hp_new; /* new block is to be split */ | |
3037 pp = pp_new; | |
3038 CHECK(stack_idx != 0, _("stack_idx should be 0")); | |
3039 ip->ip_index = 0; | |
3040 ++stack_idx; /* do block 1 again later */ | |
3041 } | |
3042 /* | |
3043 * move the pointers after the current one to the new block | |
3044 * If there are none, the new entry will be in the new block. | |
3045 */ | |
3046 total_moved = pp->pb_count - pb_idx - 1; | |
3047 if (total_moved) | |
3048 { | |
3049 mch_memmove(&pp_new->pb_pointer[0], | |
3050 &pp->pb_pointer[pb_idx + 1], | |
3051 (size_t)(total_moved) * sizeof(PTR_EN)); | |
3052 pp_new->pb_count = total_moved; | |
3053 pp->pb_count -= total_moved - 1; | |
3054 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
3055 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
3056 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
3057 if (lnum_right) | |
3058 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
3059 } | |
3060 else | |
3061 { | |
3062 pp_new->pb_count = 1; | |
3063 pp_new->pb_pointer[0].pe_bnum = bnum_right; | |
3064 pp_new->pb_pointer[0].pe_line_count = line_count_right; | |
3065 pp_new->pb_pointer[0].pe_page_count = page_count_right; | |
3066 pp_new->pb_pointer[0].pe_old_lnum = lnum_right; | |
3067 } | |
3068 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
3069 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
3070 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
3071 if (lnum_left) | |
3072 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
3073 lnum_left = 0; | |
3074 lnum_right = 0; | |
3075 | |
3076 /* | |
3077 * recompute line counts | |
3078 */ | |
3079 line_count_right = 0; | |
3080 for (i = 0; i < (int)pp_new->pb_count; ++i) | |
3081 line_count_right += pp_new->pb_pointer[i].pe_line_count; | |
3082 line_count_left = 0; | |
3083 for (i = 0; i < (int)pp->pb_count; ++i) | |
3084 line_count_left += pp->pb_pointer[i].pe_line_count; | |
3085 | |
3086 bnum_left = hp->bh_bnum; | |
3087 bnum_right = hp_new->bh_bnum; | |
3088 page_count_left = 1; | |
3089 page_count_right = 1; | |
3090 mf_put(mfp, hp, TRUE, FALSE); | |
3091 mf_put(mfp, hp_new, TRUE, FALSE); | |
3092 } | |
3093 } | |
3094 | |
3095 /* | |
3096 * Safety check: fallen out of for loop? | |
3097 */ | |
3098 if (stack_idx < 0) | |
3099 { | |
10359
66f1b5bf3fa6
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Christian Brabandt <cb@256bit.org>
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10042
diff
changeset
|
3100 IEMSG(_("E318: Updated too many blocks?")); |
7 | 3101 buf->b_ml.ml_stack_top = 0; /* invalidate stack */ |
3102 } | |
3103 } | |
3104 | |
3105 #ifdef FEAT_BYTEOFF | |
3106 /* The line was inserted below 'lnum' */ | |
3107 ml_updatechunk(buf, lnum + 1, (long)len, ML_CHNK_ADDLINE); | |
3108 #endif | |
3109 #ifdef FEAT_NETBEANS_INTG | |
2210 | 3110 if (netbeans_active()) |
7 | 3111 { |
3112 if (STRLEN(line) > 0) | |
835 | 3113 netbeans_inserted(buf, lnum+1, (colnr_T)0, line, (int)STRLEN(line)); |
34 | 3114 netbeans_inserted(buf, lnum+1, (colnr_T)STRLEN(line), |
7 | 3115 (char_u *)"\n", 1); |
3116 } | |
3117 #endif | |
8493
caed4b2d305f
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
3118 #ifdef FEAT_JOB_CHANNEL |
8422
5d2c84be23b5
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
3119 if (buf->b_write_to_channel) |
5d2c84be23b5
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diff
changeset
|
3120 channel_write_new_lines(buf); |
5d2c84be23b5
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diff
changeset
|
3121 #endif |
5d2c84be23b5
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
3122 |
7 | 3123 return OK; |
3124 } | |
3125 | |
3126 /* | |
625 | 3127 * Replace line lnum, with buffering, in current buffer. |
7 | 3128 * |
720 | 3129 * If "copy" is TRUE, make a copy of the line, otherwise the line has been |
7 | 3130 * copied to allocated memory already. |
3131 * | |
3132 * Check: The caller of this function should probably also call | |
3133 * changed_lines(), unless update_screen(NOT_VALID) is used. | |
3134 * | |
3135 * return FAIL for failure, OK otherwise | |
3136 */ | |
3137 int | |
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diff
changeset
|
3138 ml_replace(linenr_T lnum, char_u *line, int copy) |
7 | 3139 { |
15138
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|
3140 colnr_T len = -1; |
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|
3141 |
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|
3142 if (line != NULL) |
15182
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|
3143 len = (colnr_T)STRLEN(line); |
15138
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|
3144 return ml_replace_len(lnum, line, len, copy); |
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|
3145 } |
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|
3146 |
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|
3147 int |
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changeset
|
3148 ml_replace_len(linenr_T lnum, char_u *line_arg, colnr_T len_arg, int copy) |
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|
3149 { |
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|
3150 char_u *line = line_arg; |
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|
3151 colnr_T len = len_arg; |
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|
3152 |
7 | 3153 if (line == NULL) /* just checking... */ |
3154 return FAIL; | |
3155 | |
3156 /* When starting up, we might still need to create the memfile */ | |
2394
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Add the 'undoreload' option to be able to undo a file reload.
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|
3157 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
7 | 3158 return FAIL; |
3159 | |
15138
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diff
changeset
|
3160 if (copy && (line = vim_strnsave(line, len)) == NULL) /* allocate memory */ |
7 | 3161 return FAIL; |
3162 #ifdef FEAT_NETBEANS_INTG | |
2210 | 3163 if (netbeans_active()) |
7 | 3164 { |
3165 netbeans_removed(curbuf, lnum, 0, (long)STRLEN(ml_get(lnum))); | |
835 | 3166 netbeans_inserted(curbuf, lnum, 0, line, (int)STRLEN(line)); |
7 | 3167 } |
3168 #endif | |
15138
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|
3169 if (curbuf->b_ml.ml_line_lnum != lnum) |
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3170 { |
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3171 // another line is buffered, flush it |
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|
3172 ml_flush_line(curbuf); |
15142
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patch 8.1.0581: double free without the text properties feature
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changeset
|
3173 curbuf->b_ml.ml_flags &= ~ML_LINE_DIRTY; |
15138
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3174 |
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changeset
|
3175 #ifdef FEAT_TEXT_PROP |
15255
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patch 8.1.0636: line2byte() gives wrong values with text properties
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diff
changeset
|
3176 if (curbuf->b_has_textprop) |
15138
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|
3177 // Need to fetch the old line to copy over any text properties. |
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|
3178 ml_get_buf(curbuf, lnum, TRUE); |
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3179 #endif |
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|
3180 } |
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|
3181 |
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|
3182 #ifdef FEAT_TEXT_PROP |
15255
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changeset
|
3183 if (curbuf->b_has_textprop) |
15138
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|
3184 { |
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changeset
|
3185 size_t oldtextlen = STRLEN(curbuf->b_ml.ml_line_ptr) + 1; |
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|
3186 |
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changeset
|
3187 if (oldtextlen < (size_t)curbuf->b_ml.ml_line_len) |
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|
3188 { |
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changeset
|
3189 char_u *newline; |
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changeset
|
3190 size_t textproplen = curbuf->b_ml.ml_line_len - oldtextlen; |
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changeset
|
3191 |
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changeset
|
3192 // Need to copy over text properties, stored after the text. |
15182
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diff
changeset
|
3193 newline = alloc(len + 1 + (int)textproplen); |
15138
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changeset
|
3194 if (newline != NULL) |
9df130fd5e0d
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diff
changeset
|
3195 { |
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diff
changeset
|
3196 mch_memmove(newline, line, len + 1); |
9df130fd5e0d
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diff
changeset
|
3197 mch_memmove(newline + len + 1, curbuf->b_ml.ml_line_ptr + oldtextlen, textproplen); |
9df130fd5e0d
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diff
changeset
|
3198 vim_free(line); |
9df130fd5e0d
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diff
changeset
|
3199 line = newline; |
15182
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patch 8.1.0601: a few compiler warnings
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diff
changeset
|
3200 len += (colnr_T)textproplen; |
15138
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diff
changeset
|
3201 } |
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diff
changeset
|
3202 } |
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diff
changeset
|
3203 } |
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
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diff
changeset
|
3204 #endif |
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|
3205 |
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diff
changeset
|
3206 if (curbuf->b_ml.ml_flags & ML_LINE_DIRTY) /* same line allocated */ |
7 | 3207 vim_free(curbuf->b_ml.ml_line_ptr); /* free it */ |
15138
9df130fd5e0d
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diff
changeset
|
3208 |
7 | 3209 curbuf->b_ml.ml_line_ptr = line; |
15138
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diff
changeset
|
3210 curbuf->b_ml.ml_line_len = len + 1; |
7 | 3211 curbuf->b_ml.ml_line_lnum = lnum; |
3212 curbuf->b_ml.ml_flags = (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY; | |
3213 | |
3214 return OK; | |
3215 } | |
3216 | |
3217 /* | |
12477
68d7bc045dbe
patch 8.0.1118: FEAT_WINDOWS adds a lot of #ifdefs
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diff
changeset
|
3218 * Delete line "lnum" in the current buffer. |
68d7bc045dbe
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11158
diff
changeset
|
3219 * When "message" is TRUE may give a "No lines in buffer" message. |
7 | 3220 * |
3221 * Check: The caller of this function should probably also call | |
3222 * deleted_lines() after this. | |
3223 * | |
3224 * return FAIL for failure, OK otherwise | |
3225 */ | |
3226 int | |
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Christian Brabandt <cb@256bit.org>
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7803
diff
changeset
|
3227 ml_delete(linenr_T lnum, int message) |
7 | 3228 { |
3229 ml_flush_line(curbuf); | |
3230 return ml_delete_int(curbuf, lnum, message); | |
3231 } | |
3232 | |
3233 static int | |
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Christian Brabandt <cb@256bit.org>
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7803
diff
changeset
|
3234 ml_delete_int(buf_T *buf, linenr_T lnum, int message) |
7 | 3235 { |
3236 bhdr_T *hp; | |
3237 memfile_T *mfp; | |
3238 DATA_BL *dp; | |
3239 PTR_BL *pp; | |
3240 infoptr_T *ip; | |
3241 int count; /* number of entries in block */ | |
3242 int idx; | |
3243 int stack_idx; | |
3244 int text_start; | |
3245 int line_start; | |
3246 long line_size; | |
3247 int i; | |
3248 | |
3249 if (lnum < 1 || lnum > buf->b_ml.ml_line_count) | |
3250 return FAIL; | |
3251 | |
3252 if (lowest_marked && lowest_marked > lnum) | |
3253 lowest_marked--; | |
3254 | |
3255 /* | |
3256 * If the file becomes empty the last line is replaced by an empty line. | |
3257 */ | |
3258 if (buf->b_ml.ml_line_count == 1) /* file becomes empty */ | |
3259 { | |
3260 if (message | |
3261 #ifdef FEAT_NETBEANS_INTG | |
3262 && !netbeansSuppressNoLines | |
3263 #endif | |
3264 ) | |
680 | 3265 set_keep_msg((char_u *)_(no_lines_msg), 0); |
3266 | |
4352 | 3267 /* FEAT_BYTEOFF already handled in there, don't worry 'bout it below */ |
7 | 3268 i = ml_replace((linenr_T)1, (char_u *)"", TRUE); |
3269 buf->b_ml.ml_flags |= ML_EMPTY; | |
3270 | |
3271 return i; | |
3272 } | |
3273 | |
3274 /* | |
3275 * find the data block containing the line | |
3276 * This also fills the stack with the blocks from the root to the data block | |
3277 * This also releases any locked block. | |
3278 */ | |
3279 mfp = buf->b_ml.ml_mfp; | |
3280 if (mfp == NULL) | |
3281 return FAIL; | |
3282 | |
3283 if ((hp = ml_find_line(buf, lnum, ML_DELETE)) == NULL) | |
3284 return FAIL; | |
3285 | |
3286 dp = (DATA_BL *)(hp->bh_data); | |
3287 /* compute line count before the delete */ | |
3288 count = (long)(buf->b_ml.ml_locked_high) | |
3289 - (long)(buf->b_ml.ml_locked_low) + 2; | |
3290 idx = lnum - buf->b_ml.ml_locked_low; | |
3291 | |
3292 --buf->b_ml.ml_line_count; | |
3293 | |
3294 line_start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
3295 if (idx == 0) /* first line in block, text at the end */ | |
3296 line_size = dp->db_txt_end - line_start; | |
3297 else | |
3298 line_size = ((dp->db_index[idx - 1]) & DB_INDEX_MASK) - line_start; | |
3299 | |
3300 #ifdef FEAT_NETBEANS_INTG | |
2210 | 3301 if (netbeans_active()) |
34 | 3302 netbeans_removed(buf, lnum, 0, (long)line_size); |
7 | 3303 #endif |
3304 | |
3305 /* | |
3306 * special case: If there is only one line in the data block it becomes empty. | |
3307 * Then we have to remove the entry, pointing to this data block, from the | |
3308 * pointer block. If this pointer block also becomes empty, we go up another | |
3309 * block, and so on, up to the root if necessary. | |
3310 * The line counts in the pointer blocks have already been adjusted by | |
3311 * ml_find_line(). | |
3312 */ | |
3313 if (count == 1) | |
3314 { | |
3315 mf_free(mfp, hp); /* free the data block */ | |
3316 buf->b_ml.ml_locked = NULL; | |
3317 | |
2823 | 3318 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; |
3319 --stack_idx) | |
7 | 3320 { |
3321 buf->b_ml.ml_stack_top = 0; /* stack is invalid when failing */ | |
3322 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
3323 idx = ip->ip_index; | |
3324 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
3325 return FAIL; | |
3326 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
3327 if (pp->pb_id != PTR_ID) | |
3328 { | |
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3329 IEMSG(_("E317: pointer block id wrong 4")); |
7 | 3330 mf_put(mfp, hp, FALSE, FALSE); |
3331 return FAIL; | |
3332 } | |
3333 count = --(pp->pb_count); | |
3334 if (count == 0) /* the pointer block becomes empty! */ | |
3335 mf_free(mfp, hp); | |
3336 else | |
3337 { | |
3338 if (count != idx) /* move entries after the deleted one */ | |
3339 mch_memmove(&pp->pb_pointer[idx], &pp->pb_pointer[idx + 1], | |
3340 (size_t)(count - idx) * sizeof(PTR_EN)); | |
3341 mf_put(mfp, hp, TRUE, FALSE); | |
3342 | |
3343 buf->b_ml.ml_stack_top = stack_idx; /* truncate stack */ | |
1167 | 3344 /* fix line count for rest of blocks in the stack */ |
3345 if (buf->b_ml.ml_locked_lineadd != 0) | |
7 | 3346 { |
3347 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); | |
3348 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
1167 | 3349 buf->b_ml.ml_locked_lineadd; |
7 | 3350 } |
3351 ++(buf->b_ml.ml_stack_top); | |
3352 | |
3353 break; | |
3354 } | |
3355 } | |
3356 CHECK(stack_idx < 0, _("deleted block 1?")); | |
3357 } | |
3358 else | |
3359 { | |
3360 /* | |
3361 * delete the text by moving the next lines forwards | |
3362 */ | |
3363 text_start = dp->db_txt_start; | |
3364 mch_memmove((char *)dp + text_start + line_size, | |
3365 (char *)dp + text_start, (size_t)(line_start - text_start)); | |
3366 | |
3367 /* | |
3368 * delete the index by moving the next indexes backwards | |
3369 * Adjust the indexes for the text movement. | |
3370 */ | |
3371 for (i = idx; i < count - 1; ++i) | |
3372 dp->db_index[i] = dp->db_index[i + 1] + line_size; | |
3373 | |
3374 dp->db_free += line_size + INDEX_SIZE; | |
3375 dp->db_txt_start += line_size; | |
3376 --(dp->db_line_count); | |
3377 | |
3378 /* | |
3379 * mark the block dirty and make sure it is in the file (for recovery) | |
3380 */ | |
3381 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
3382 } | |
3383 | |
3384 #ifdef FEAT_BYTEOFF | |
3385 ml_updatechunk(buf, lnum, line_size, ML_CHNK_DELLINE); | |
3386 #endif | |
3387 return OK; | |
3388 } | |
3389 | |
3390 /* | |
3391 * set the B_MARKED flag for line 'lnum' | |
3392 */ | |
3393 void | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3394 ml_setmarked(linenr_T lnum) |
7 | 3395 { |
3396 bhdr_T *hp; | |
3397 DATA_BL *dp; | |
3398 /* invalid line number */ | |
3399 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count | |
3400 || curbuf->b_ml.ml_mfp == NULL) | |
3401 return; /* give error message? */ | |
3402 | |
3403 if (lowest_marked == 0 || lowest_marked > lnum) | |
3404 lowest_marked = lnum; | |
3405 | |
3406 /* | |
3407 * find the data block containing the line | |
3408 * This also fills the stack with the blocks from the root to the data block | |
3409 * This also releases any locked block. | |
3410 */ | |
3411 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
3412 return; /* give error message? */ | |
3413 | |
3414 dp = (DATA_BL *)(hp->bh_data); | |
3415 dp->db_index[lnum - curbuf->b_ml.ml_locked_low] |= DB_MARKED; | |
3416 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
3417 } | |
3418 | |
3419 /* | |
3420 * find the first line with its B_MARKED flag set | |
3421 */ | |
3422 linenr_T | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3423 ml_firstmarked(void) |
7 | 3424 { |
3425 bhdr_T *hp; | |
3426 DATA_BL *dp; | |
3427 linenr_T lnum; | |
3428 int i; | |
3429 | |
3430 if (curbuf->b_ml.ml_mfp == NULL) | |
3431 return (linenr_T) 0; | |
3432 | |
3433 /* | |
3434 * The search starts with lowest_marked line. This is the last line where | |
3435 * a mark was found, adjusted by inserting/deleting lines. | |
3436 */ | |
3437 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
3438 { | |
3439 /* | |
3440 * Find the data block containing the line. | |
3441 * This also fills the stack with the blocks from the root to the data | |
3442 * block This also releases any locked block. | |
3443 */ | |
3444 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
3445 return (linenr_T)0; /* give error message? */ | |
3446 | |
3447 dp = (DATA_BL *)(hp->bh_data); | |
3448 | |
3449 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
3450 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
3451 if ((dp->db_index[i]) & DB_MARKED) | |
3452 { | |
3453 (dp->db_index[i]) &= DB_INDEX_MASK; | |
3454 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
3455 lowest_marked = lnum + 1; | |
3456 return lnum; | |
3457 } | |
3458 } | |
3459 | |
3460 return (linenr_T) 0; | |
3461 } | |
3462 | |
3463 /* | |
3464 * clear all DB_MARKED flags | |
3465 */ | |
3466 void | |
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3467 ml_clearmarked(void) |
7 | 3468 { |
3469 bhdr_T *hp; | |
3470 DATA_BL *dp; | |
3471 linenr_T lnum; | |
3472 int i; | |
3473 | |
3474 if (curbuf->b_ml.ml_mfp == NULL) /* nothing to do */ | |
3475 return; | |
3476 | |
3477 /* | |
3478 * The search starts with line lowest_marked. | |
3479 */ | |
3480 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
3481 { | |
3482 /* | |
3483 * Find the data block containing the line. | |
3484 * This also fills the stack with the blocks from the root to the data | |
3485 * block and releases any locked block. | |
3486 */ | |
3487 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
3488 return; /* give error message? */ | |
3489 | |
3490 dp = (DATA_BL *)(hp->bh_data); | |
3491 | |
3492 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
3493 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
3494 if ((dp->db_index[i]) & DB_MARKED) | |
3495 { | |
3496 (dp->db_index[i]) &= DB_INDEX_MASK; | |
3497 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
3498 } | |
3499 } | |
3500 | |
3501 lowest_marked = 0; | |
3502 return; | |
3503 } | |
3504 | |
3505 /* | |
3506 * flush ml_line if necessary | |
3507 */ | |
3508 static void | |
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3509 ml_flush_line(buf_T *buf) |
7 | 3510 { |
3511 bhdr_T *hp; | |
3512 DATA_BL *dp; | |
3513 linenr_T lnum; | |
3514 char_u *new_line; | |
3515 char_u *old_line; | |
3516 colnr_T new_len; | |
3517 int old_len; | |
3518 int extra; | |
3519 int idx; | |
3520 int start; | |
3521 int count; | |
3522 int i; | |
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parents:
2003
diff
changeset
|
3523 static int entered = FALSE; |
7 | 3524 |
3525 if (buf->b_ml.ml_line_lnum == 0 || buf->b_ml.ml_mfp == NULL) | |
3526 return; /* nothing to do */ | |
3527 | |
3528 if (buf->b_ml.ml_flags & ML_LINE_DIRTY) | |
3529 { | |
2075
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parents:
2003
diff
changeset
|
3530 /* This code doesn't work recursively, but Netbeans may call back here |
903fcd726d90
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parents:
2003
diff
changeset
|
3531 * when obtaining the cursor position. */ |
903fcd726d90
updated for version 7.2.359
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parents:
2003
diff
changeset
|
3532 if (entered) |
903fcd726d90
updated for version 7.2.359
Bram Moolenaar <bram@zimbu.org>
parents:
2003
diff
changeset
|
3533 return; |
903fcd726d90
updated for version 7.2.359
Bram Moolenaar <bram@zimbu.org>
parents:
2003
diff
changeset
|
3534 entered = TRUE; |
903fcd726d90
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Bram Moolenaar <bram@zimbu.org>
parents:
2003
diff
changeset
|
3535 |
7 | 3536 lnum = buf->b_ml.ml_line_lnum; |
3537 new_line = buf->b_ml.ml_line_ptr; | |
3538 | |
3539 hp = ml_find_line(buf, lnum, ML_FIND); | |
3540 if (hp == NULL) | |
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3541 IEMSGN(_("E320: Cannot find line %ld"), lnum); |
7 | 3542 else |
3543 { | |
3544 dp = (DATA_BL *)(hp->bh_data); | |
3545 idx = lnum - buf->b_ml.ml_locked_low; | |
3546 start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
3547 old_line = (char_u *)dp + start; | |
3548 if (idx == 0) /* line is last in block */ | |
3549 old_len = dp->db_txt_end - start; | |
3550 else /* text of previous line follows */ | |
3551 old_len = (dp->db_index[idx - 1] & DB_INDEX_MASK) - start; | |
15138
9df130fd5e0d
patch 8.1.0579: cannot attach properties to text
Bram Moolenaar <Bram@vim.org>
parents:
14980
diff
changeset
|
3552 new_len = buf->b_ml.ml_line_len; |
7 | 3553 extra = new_len - old_len; /* negative if lines gets smaller */ |
3554 | |
3555 /* | |
3556 * if new line fits in data block, replace directly | |
3557 */ | |
3558 if ((int)dp->db_free >= extra) | |
3559 { | |
3560 /* if the length changes and there are following lines */ | |
3561 count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low + 1; | |
3562 if (extra != 0 && idx < count - 1) | |
3563 { | |
3564 /* move text of following lines */ | |
3565 mch_memmove((char *)dp + dp->db_txt_start - extra, | |
3566 (char *)dp + dp->db_txt_start, | |
3567 (size_t)(start - dp->db_txt_start)); | |
3568 | |
3569 /* adjust pointers of this and following lines */ | |
3570 for (i = idx + 1; i < count; ++i) | |
3571 dp->db_index[i] -= extra; | |
3572 } | |
3573 dp->db_index[idx] -= extra; | |
3574 | |
3575 /* adjust free space */ | |
3576 dp->db_free -= extra; | |
3577 dp->db_txt_start -= extra; | |
3578 | |
3579 /* copy new line into the data block */ | |
3580 mch_memmove(old_line - extra, new_line, (size_t)new_len); | |
3581 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
3582 #ifdef FEAT_BYTEOFF | |
3583 /* The else case is already covered by the insert and delete */ | |
3584 ml_updatechunk(buf, lnum, (long)extra, ML_CHNK_UPDLINE); | |
3585 #endif | |
3586 } | |
3587 else | |
3588 { | |
3589 /* | |
3590 * Cannot do it in one data block: Delete and append. | |
3591 * Append first, because ml_delete_int() cannot delete the | |
3592 * last line in a buffer, which causes trouble for a buffer | |
3593 * that has only one line. | |
3594 * Don't forget to copy the mark! | |
3595 */ | |
3596 /* How about handling errors??? */ | |
3597 (void)ml_append_int(buf, lnum, new_line, new_len, FALSE, | |
3598 (dp->db_index[idx] & DB_MARKED)); | |
3599 (void)ml_delete_int(buf, lnum, FALSE); | |
3600 } | |
3601 } | |
3602 vim_free(new_line); | |
2075
903fcd726d90
updated for version 7.2.359
Bram Moolenaar <bram@zimbu.org>
parents:
2003
diff
changeset
|
3603 |
903fcd726d90
updated for version 7.2.359
Bram Moolenaar <bram@zimbu.org>
parents:
2003
diff
changeset
|
3604 entered = FALSE; |
7 | 3605 } |
3606 | |
3607 buf->b_ml.ml_line_lnum = 0; | |
3608 } | |
3609 | |
3610 /* | |
3611 * create a new, empty, data block | |
3612 */ | |
3613 static bhdr_T * | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3614 ml_new_data(memfile_T *mfp, int negative, int page_count) |
7 | 3615 { |
3616 bhdr_T *hp; | |
3617 DATA_BL *dp; | |
3618 | |
3619 if ((hp = mf_new(mfp, negative, page_count)) == NULL) | |
3620 return NULL; | |
3621 | |
3622 dp = (DATA_BL *)(hp->bh_data); | |
3623 dp->db_id = DATA_ID; | |
3624 dp->db_txt_start = dp->db_txt_end = page_count * mfp->mf_page_size; | |
3625 dp->db_free = dp->db_txt_start - HEADER_SIZE; | |
3626 dp->db_line_count = 0; | |
3627 | |
3628 return hp; | |
3629 } | |
3630 | |
3631 /* | |
3632 * create a new, empty, pointer block | |
3633 */ | |
3634 static bhdr_T * | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3635 ml_new_ptr(memfile_T *mfp) |
7 | 3636 { |
3637 bhdr_T *hp; | |
3638 PTR_BL *pp; | |
3639 | |
3640 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
3641 return NULL; | |
3642 | |
3643 pp = (PTR_BL *)(hp->bh_data); | |
3644 pp->pb_id = PTR_ID; | |
3645 pp->pb_count = 0; | |
2240
6b4879aea261
Add test for gettabvar() and settabvar().
Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3646 pp->pb_count_max = (short_u)((mfp->mf_page_size - sizeof(PTR_BL)) |
6b4879aea261
Add test for gettabvar() and settabvar().
Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3647 / sizeof(PTR_EN) + 1); |
7 | 3648 |
3649 return hp; | |
3650 } | |
3651 | |
3652 /* | |
3653 * lookup line 'lnum' in a memline | |
3654 * | |
3655 * action: if ML_DELETE or ML_INSERT the line count is updated while searching | |
3656 * if ML_FLUSH only flush a locked block | |
3657 * if ML_FIND just find the line | |
3658 * | |
3659 * If the block was found it is locked and put in ml_locked. | |
3660 * The stack is updated to lead to the locked block. The ip_high field in | |
3661 * the stack is updated to reflect the last line in the block AFTER the | |
3662 * insert or delete, also if the pointer block has not been updated yet. But | |
1167 | 3663 * if ml_locked != NULL ml_locked_lineadd must be added to ip_high. |
7 | 3664 * |
3665 * return: NULL for failure, pointer to block header otherwise | |
3666 */ | |
3667 static bhdr_T * | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3668 ml_find_line(buf_T *buf, linenr_T lnum, int action) |
7 | 3669 { |
3670 DATA_BL *dp; | |
3671 PTR_BL *pp; | |
3672 infoptr_T *ip; | |
3673 bhdr_T *hp; | |
3674 memfile_T *mfp; | |
3675 linenr_T t; | |
3676 blocknr_T bnum, bnum2; | |
3677 int dirty; | |
3678 linenr_T low, high; | |
3679 int top; | |
3680 int page_count; | |
3681 int idx; | |
3682 | |
3683 mfp = buf->b_ml.ml_mfp; | |
3684 | |
3685 /* | |
3686 * If there is a locked block check if the wanted line is in it. | |
3687 * If not, flush and release the locked block. | |
3688 * Don't do this for ML_INSERT_SAME, because the stack need to be updated. | |
3689 * Don't do this for ML_FLUSH, because we want to flush the locked block. | |
1066 | 3690 * Don't do this when 'swapfile' is reset, we want to load all the blocks. |
7 | 3691 */ |
3692 if (buf->b_ml.ml_locked) | |
3693 { | |
1066 | 3694 if (ML_SIMPLE(action) |
3695 && buf->b_ml.ml_locked_low <= lnum | |
3696 && buf->b_ml.ml_locked_high >= lnum | |
3697 && !mf_dont_release) | |
7 | 3698 { |
1066 | 3699 /* remember to update pointer blocks and stack later */ |
7 | 3700 if (action == ML_INSERT) |
3701 { | |
3702 ++(buf->b_ml.ml_locked_lineadd); | |
3703 ++(buf->b_ml.ml_locked_high); | |
3704 } | |
3705 else if (action == ML_DELETE) | |
3706 { | |
3707 --(buf->b_ml.ml_locked_lineadd); | |
3708 --(buf->b_ml.ml_locked_high); | |
3709 } | |
3710 return (buf->b_ml.ml_locked); | |
3711 } | |
3712 | |
3713 mf_put(mfp, buf->b_ml.ml_locked, buf->b_ml.ml_flags & ML_LOCKED_DIRTY, | |
3714 buf->b_ml.ml_flags & ML_LOCKED_POS); | |
3715 buf->b_ml.ml_locked = NULL; | |
3716 | |
1167 | 3717 /* |
3718 * If lines have been added or deleted in the locked block, need to | |
3719 * update the line count in pointer blocks. | |
3720 */ | |
3721 if (buf->b_ml.ml_locked_lineadd != 0) | |
7 | 3722 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); |
3723 } | |
3724 | |
3725 if (action == ML_FLUSH) /* nothing else to do */ | |
3726 return NULL; | |
3727 | |
3728 bnum = 1; /* start at the root of the tree */ | |
3729 page_count = 1; | |
3730 low = 1; | |
3731 high = buf->b_ml.ml_line_count; | |
3732 | |
3733 if (action == ML_FIND) /* first try stack entries */ | |
3734 { | |
3735 for (top = buf->b_ml.ml_stack_top - 1; top >= 0; --top) | |
3736 { | |
3737 ip = &(buf->b_ml.ml_stack[top]); | |
3738 if (ip->ip_low <= lnum && ip->ip_high >= lnum) | |
3739 { | |
3740 bnum = ip->ip_bnum; | |
3741 low = ip->ip_low; | |
3742 high = ip->ip_high; | |
3743 buf->b_ml.ml_stack_top = top; /* truncate stack at prev entry */ | |
3744 break; | |
3745 } | |
3746 } | |
3747 if (top < 0) | |
3748 buf->b_ml.ml_stack_top = 0; /* not found, start at the root */ | |
3749 } | |
3750 else /* ML_DELETE or ML_INSERT */ | |
3751 buf->b_ml.ml_stack_top = 0; /* start at the root */ | |
3752 | |
3753 /* | |
3754 * search downwards in the tree until a data block is found | |
3755 */ | |
3756 for (;;) | |
3757 { | |
3758 if ((hp = mf_get(mfp, bnum, page_count)) == NULL) | |
3759 goto error_noblock; | |
3760 | |
3761 /* | |
3762 * update high for insert/delete | |
3763 */ | |
3764 if (action == ML_INSERT) | |
3765 ++high; | |
3766 else if (action == ML_DELETE) | |
3767 --high; | |
3768 | |
3769 dp = (DATA_BL *)(hp->bh_data); | |
3770 if (dp->db_id == DATA_ID) /* data block */ | |
3771 { | |
3772 buf->b_ml.ml_locked = hp; | |
3773 buf->b_ml.ml_locked_low = low; | |
3774 buf->b_ml.ml_locked_high = high; | |
3775 buf->b_ml.ml_locked_lineadd = 0; | |
3776 buf->b_ml.ml_flags &= ~(ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
3777 return hp; | |
3778 } | |
3779 | |
3780 pp = (PTR_BL *)(dp); /* must be pointer block */ | |
3781 if (pp->pb_id != PTR_ID) | |
3782 { | |
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3783 IEMSG(_("E317: pointer block id wrong")); |
7 | 3784 goto error_block; |
3785 } | |
3786 | |
3787 if ((top = ml_add_stack(buf)) < 0) /* add new entry to stack */ | |
3788 goto error_block; | |
3789 ip = &(buf->b_ml.ml_stack[top]); | |
3790 ip->ip_bnum = bnum; | |
3791 ip->ip_low = low; | |
3792 ip->ip_high = high; | |
3793 ip->ip_index = -1; /* index not known yet */ | |
3794 | |
3795 dirty = FALSE; | |
3796 for (idx = 0; idx < (int)pp->pb_count; ++idx) | |
3797 { | |
3798 t = pp->pb_pointer[idx].pe_line_count; | |
3799 CHECK(t == 0, _("pe_line_count is zero")); | |
3800 if ((low += t) > lnum) | |
3801 { | |
3802 ip->ip_index = idx; | |
3803 bnum = pp->pb_pointer[idx].pe_bnum; | |
3804 page_count = pp->pb_pointer[idx].pe_page_count; | |
3805 high = low - 1; | |
3806 low -= t; | |
3807 | |
3808 /* | |
3809 * a negative block number may have been changed | |
3810 */ | |
3811 if (bnum < 0) | |
3812 { | |
3813 bnum2 = mf_trans_del(mfp, bnum); | |
3814 if (bnum != bnum2) | |
3815 { | |
3816 bnum = bnum2; | |
3817 pp->pb_pointer[idx].pe_bnum = bnum; | |
3818 dirty = TRUE; | |
3819 } | |
3820 } | |
3821 | |
3822 break; | |
3823 } | |
3824 } | |
3825 if (idx >= (int)pp->pb_count) /* past the end: something wrong! */ | |
3826 { | |
3827 if (lnum > buf->b_ml.ml_line_count) | |
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3828 IEMSGN(_("E322: line number out of range: %ld past the end"), |
7 | 3829 lnum - buf->b_ml.ml_line_count); |
3830 | |
3831 else | |
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3832 IEMSGN(_("E323: line count wrong in block %ld"), bnum); |
7 | 3833 goto error_block; |
3834 } | |
3835 if (action == ML_DELETE) | |
3836 { | |
3837 pp->pb_pointer[idx].pe_line_count--; | |
3838 dirty = TRUE; | |
3839 } | |
3840 else if (action == ML_INSERT) | |
3841 { | |
3842 pp->pb_pointer[idx].pe_line_count++; | |
3843 dirty = TRUE; | |
3844 } | |
3845 mf_put(mfp, hp, dirty, FALSE); | |
3846 } | |
3847 | |
3848 error_block: | |
3849 mf_put(mfp, hp, FALSE, FALSE); | |
3850 error_noblock: | |
2267 | 3851 /* |
3852 * If action is ML_DELETE or ML_INSERT we have to correct the tree for | |
3853 * the incremented/decremented line counts, because there won't be a line | |
3854 * inserted/deleted after all. | |
3855 */ | |
7 | 3856 if (action == ML_DELETE) |
3857 ml_lineadd(buf, 1); | |
3858 else if (action == ML_INSERT) | |
3859 ml_lineadd(buf, -1); | |
3860 buf->b_ml.ml_stack_top = 0; | |
3861 return NULL; | |
3862 } | |
3863 | |
3864 /* | |
3865 * add an entry to the info pointer stack | |
3866 * | |
3867 * return -1 for failure, number of the new entry otherwise | |
3868 */ | |
3869 static int | |
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3870 ml_add_stack(buf_T *buf) |
7 | 3871 { |
3872 int top; | |
3873 infoptr_T *newstack; | |
3874 | |
3875 top = buf->b_ml.ml_stack_top; | |
3876 | |
2267 | 3877 /* may have to increase the stack size */ |
7 | 3878 if (top == buf->b_ml.ml_stack_size) |
3879 { | |
2267 | 3880 CHECK(top > 0, _("Stack size increases")); /* more than 5 levels??? */ |
7 | 3881 |
3882 newstack = (infoptr_T *)alloc((unsigned)sizeof(infoptr_T) * | |
3883 (buf->b_ml.ml_stack_size + STACK_INCR)); | |
3884 if (newstack == NULL) | |
3885 return -1; | |
6989 | 3886 if (top > 0) |
3887 mch_memmove(newstack, buf->b_ml.ml_stack, | |
1624 | 3888 (size_t)top * sizeof(infoptr_T)); |
7 | 3889 vim_free(buf->b_ml.ml_stack); |
3890 buf->b_ml.ml_stack = newstack; | |
3891 buf->b_ml.ml_stack_size += STACK_INCR; | |
3892 } | |
3893 | |
3894 buf->b_ml.ml_stack_top++; | |
3895 return top; | |
3896 } | |
3897 | |
3898 /* | |
3899 * Update the pointer blocks on the stack for inserted/deleted lines. | |
3900 * The stack itself is also updated. | |
3901 * | |
3902 * When a insert/delete line action fails, the line is not inserted/deleted, | |
3903 * but the pointer blocks have already been updated. That is fixed here by | |
3904 * walking through the stack. | |
3905 * | |
3906 * Count is the number of lines added, negative if lines have been deleted. | |
3907 */ | |
3908 static void | |
7827
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3909 ml_lineadd(buf_T *buf, int count) |
7 | 3910 { |
3911 int idx; | |
3912 infoptr_T *ip; | |
3913 PTR_BL *pp; | |
3914 memfile_T *mfp = buf->b_ml.ml_mfp; | |
3915 bhdr_T *hp; | |
3916 | |
3917 for (idx = buf->b_ml.ml_stack_top - 1; idx >= 0; --idx) | |
3918 { | |
3919 ip = &(buf->b_ml.ml_stack[idx]); | |
3920 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
3921 break; | |
3922 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
3923 if (pp->pb_id != PTR_ID) | |
3924 { | |
3925 mf_put(mfp, hp, FALSE, FALSE); | |
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3926 IEMSG(_("E317: pointer block id wrong 2")); |
7 | 3927 break; |
3928 } | |
3929 pp->pb_pointer[ip->ip_index].pe_line_count += count; | |
3930 ip->ip_high += count; | |
3931 mf_put(mfp, hp, TRUE, FALSE); | |
3932 } | |
3933 } | |
3934 | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3935 #if defined(HAVE_READLINK) || defined(PROTO) |
594 | 3936 /* |
3937 * Resolve a symlink in the last component of a file name. | |
3938 * Note that f_resolve() does it for every part of the path, we don't do that | |
3939 * here. | |
3940 * If it worked returns OK and the resolved link in "buf[MAXPATHL]". | |
3941 * Otherwise returns FAIL. | |
3942 */ | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3943 int |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3944 resolve_symlink(char_u *fname, char_u *buf) |
594 | 3945 { |
3946 char_u tmp[MAXPATHL]; | |
3947 int ret; | |
3948 int depth = 0; | |
3949 | |
3950 if (fname == NULL) | |
3951 return FAIL; | |
3952 | |
3953 /* Put the result so far in tmp[], starting with the original name. */ | |
3954 vim_strncpy(tmp, fname, MAXPATHL - 1); | |
3955 | |
3956 for (;;) | |
3957 { | |
3958 /* Limit symlink depth to 100, catch recursive loops. */ | |
3959 if (++depth == 100) | |
3960 { | |
3961 EMSG2(_("E773: Symlink loop for \"%s\""), fname); | |
3962 return FAIL; | |
3963 } | |
3964 | |
3965 ret = readlink((char *)tmp, (char *)buf, MAXPATHL - 1); | |
3966 if (ret <= 0) | |
3967 { | |
619 | 3968 if (errno == EINVAL || errno == ENOENT) |
594 | 3969 { |
619 | 3970 /* Found non-symlink or not existing file, stop here. |
1855 | 3971 * When at the first level use the unmodified name, skip the |
594 | 3972 * call to vim_FullName(). */ |
3973 if (depth == 1) | |
3974 return FAIL; | |
3975 | |
3976 /* Use the resolved name in tmp[]. */ | |
3977 break; | |
3978 } | |
3979 | |
3980 /* There must be some error reading links, use original name. */ | |
3981 return FAIL; | |
3982 } | |
3983 buf[ret] = NUL; | |
3984 | |
3985 /* | |
3986 * Check whether the symlink is relative or absolute. | |
3987 * If it's relative, build a new path based on the directory | |
3988 * portion of the filename (if any) and the path the symlink | |
3989 * points to. | |
3990 */ | |
3991 if (mch_isFullName(buf)) | |
3992 STRCPY(tmp, buf); | |
3993 else | |
3994 { | |
3995 char_u *tail; | |
3996 | |
3997 tail = gettail(tmp); | |
3998 if (STRLEN(tail) + STRLEN(buf) >= MAXPATHL) | |
3999 return FAIL; | |
4000 STRCPY(tail, buf); | |
4001 } | |
4002 } | |
4003 | |
4004 /* | |
4005 * Try to resolve the full name of the file so that the swapfile name will | |
4006 * be consistent even when opening a relative symlink from different | |
4007 * working directories. | |
4008 */ | |
4009 return vim_FullName(tmp, buf, MAXPATHL, TRUE); | |
4010 } | |
4011 #endif | |
4012 | |
7 | 4013 /* |
460 | 4014 * Make swap file name out of the file name and a directory name. |
4015 * Returns pointer to allocated memory or NULL. | |
7 | 4016 */ |
460 | 4017 char_u * |
7827
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parents:
7803
diff
changeset
|
4018 makeswapname( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
4019 char_u *fname, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
4020 char_u *ffname UNUSED, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4021 buf_T *buf, |
41789f16d6b2
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4022 char_u *dir_name) |
7 | 4023 { |
4024 char_u *r, *s; | |
2145
de0e7ca61893
updated for version 7.2.427
Bram Moolenaar <bram@zimbu.org>
parents:
2108
diff
changeset
|
4025 char_u *fname_res = fname; |
594 | 4026 #ifdef HAVE_READLINK |
4027 char_u fname_buf[MAXPATHL]; | |
4028 #endif | |
7 | 4029 |
4030 #if defined(UNIX) || defined(WIN3264) /* Need _very_ long file names */ | |
10996
2f041b367cd9
patch 8.0.0387: compiler warnings
Christian Brabandt <cb@256bit.org>
parents:
10952
diff
changeset
|
4031 int len = (int)STRLEN(dir_name); |
10896
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
4032 |
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
4033 s = dir_name + len; |
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
4034 if (after_pathsep(dir_name, s) && len > 1 && s[-1] == s[-2]) |
7 | 4035 { /* Ends with '//', Use Full path */ |
4036 r = NULL; | |
460 | 4037 if ((s = make_percent_swname(dir_name, fname)) != NULL) |
7 | 4038 { |
4039 r = modname(s, (char_u *)".swp", FALSE); | |
4040 vim_free(s); | |
4041 } | |
4042 return r; | |
4043 } | |
4044 #endif | |
4045 | |
594 | 4046 #ifdef HAVE_READLINK |
4047 /* Expand symlink in the file name, so that we put the swap file with the | |
4048 * actual file instead of with the symlink. */ | |
4049 if (resolve_symlink(fname, fname_buf) == OK) | |
4050 fname_res = fname_buf; | |
4051 #endif | |
4052 | |
7 | 4053 r = buf_modname( |
4054 (buf->b_p_sn || buf->b_shortname), | |
594 | 4055 fname_res, |
7 | 4056 (char_u *) |
2823 | 4057 #if defined(VMS) |
7 | 4058 "_swp", |
4059 #else | |
4060 ".swp", | |
4061 #endif | |
4062 /* Prepend a '.' to the swap file name for the current directory. */ | |
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4063 dir_name[0] == '.' && dir_name[1] == NUL); |
7 | 4064 if (r == NULL) /* out of memory */ |
4065 return NULL; | |
4066 | |
4067 s = get_file_in_dir(r, dir_name); | |
4068 vim_free(r); | |
4069 return s; | |
4070 } | |
4071 | |
4072 /* | |
4073 * Get file name to use for swap file or backup file. | |
4074 * Use the name of the edited file "fname" and an entry in the 'dir' or 'bdir' | |
4075 * option "dname". | |
4076 * - If "dname" is ".", return "fname" (swap file in dir of file). | |
4077 * - If "dname" starts with "./", insert "dname" in "fname" (swap file | |
4078 * relative to dir of file). | |
4079 * - Otherwise, prepend "dname" to the tail of "fname" (swap file in specific | |
4080 * dir). | |
4081 * | |
4082 * The return value is an allocated string and can be NULL. | |
4083 */ | |
4084 char_u * | |
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4085 get_file_in_dir( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4086 char_u *fname, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4087 char_u *dname) /* don't use "dirname", it is a global for Alpha */ |
7 | 4088 { |
4089 char_u *t; | |
4090 char_u *tail; | |
4091 char_u *retval; | |
4092 int save_char; | |
4093 | |
4094 tail = gettail(fname); | |
4095 | |
4096 if (dname[0] == '.' && dname[1] == NUL) | |
4097 retval = vim_strsave(fname); | |
4098 else if (dname[0] == '.' && vim_ispathsep(dname[1])) | |
4099 { | |
4100 if (tail == fname) /* no path before file name */ | |
4101 retval = concat_fnames(dname + 2, tail, TRUE); | |
4102 else | |
4103 { | |
4104 save_char = *tail; | |
4105 *tail = NUL; | |
4106 t = concat_fnames(fname, dname + 2, TRUE); | |
4107 *tail = save_char; | |
4108 if (t == NULL) /* out of memory */ | |
4109 retval = NULL; | |
4110 else | |
4111 { | |
4112 retval = concat_fnames(t, tail, TRUE); | |
4113 vim_free(t); | |
4114 } | |
4115 } | |
4116 } | |
4117 else | |
4118 retval = concat_fnames(dname, tail, TRUE); | |
4119 | |
5432 | 4120 #ifdef WIN3264 |
4121 if (retval != NULL) | |
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4122 for (t = gettail(retval); *t != NUL; MB_PTR_ADV(t)) |
5432 | 4123 if (*t == ':') |
4124 *t = '%'; | |
4125 #endif | |
4126 | |
7 | 4127 return retval; |
4128 } | |
4129 | |
580 | 4130 /* |
4131 * Print the ATTENTION message: info about an existing swap file. | |
4132 */ | |
4133 static void | |
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parents:
7803
diff
changeset
|
4134 attention_message( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4135 buf_T *buf, /* buffer being edited */ |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4136 char_u *fname) /* swap file name */ |
580 | 4137 { |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4138 stat_T st; |
580 | 4139 time_t x, sx; |
1001 | 4140 char *p; |
580 | 4141 |
4142 ++no_wait_return; | |
4143 (void)EMSG(_("E325: ATTENTION")); | |
4144 MSG_PUTS(_("\nFound a swap file by the name \"")); | |
4145 msg_home_replace(fname); | |
4146 MSG_PUTS("\"\n"); | |
4147 sx = swapfile_info(fname); | |
4148 MSG_PUTS(_("While opening file \"")); | |
4149 msg_outtrans(buf->b_fname); | |
4150 MSG_PUTS("\"\n"); | |
14923
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4151 if (mch_stat((char *)buf->b_fname, &st) == -1) |
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4152 { |
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4153 MSG_PUTS(_(" CANNOT BE FOUND")); |
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4154 } |
95400980f7c9
patch 8.1.0473: user doesn't notice file does not exist when swap file does
Bram Moolenaar <Bram@vim.org>
parents:
14909
diff
changeset
|
4155 else |
580 | 4156 { |
4157 MSG_PUTS(_(" dated: ")); | |
4158 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
1001 | 4159 p = ctime(&x); /* includes '\n' */ |
4160 if (p == NULL) | |
4161 MSG_PUTS("(invalid)\n"); | |
4162 else | |
4163 MSG_PUTS(p); | |
580 | 4164 if (sx != 0 && x > sx) |
4165 MSG_PUTS(_(" NEWER than swap file!\n")); | |
4166 } | |
4167 /* Some of these messages are long to allow translation to | |
4168 * other languages. */ | |
7881
e7afe45a202a
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Christian Brabandt <cb@256bit.org>
parents:
7827
diff
changeset
|
4169 MSG_PUTS(_("\n(1) Another program may be editing the same file. If this is the case,\n be careful not to end up with two different instances of the same\n file when making changes. Quit, or continue with caution.\n")); |
2703 | 4170 MSG_PUTS(_("(2) An edit session for this file crashed.\n")); |
580 | 4171 MSG_PUTS(_(" If this is the case, use \":recover\" or \"vim -r ")); |
4172 msg_outtrans(buf->b_fname); | |
4173 MSG_PUTS(_("\"\n to recover the changes (see \":help recovery\").\n")); | |
4174 MSG_PUTS(_(" If you did this already, delete the swap file \"")); | |
4175 msg_outtrans(fname); | |
4176 MSG_PUTS(_("\"\n to avoid this message.\n")); | |
4177 cmdline_row = msg_row; | |
4178 --no_wait_return; | |
4179 } | |
4180 | |
13380
69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4181 #if defined(FEAT_EVAL) |
580 | 4182 /* |
4183 * Trigger the SwapExists autocommands. | |
4184 * Returns a value for equivalent to do_dialog() (see below): | |
4185 * 0: still need to ask for a choice | |
4186 * 1: open read-only | |
4187 * 2: edit anyway | |
4188 * 3: recover | |
4189 * 4: delete it | |
4190 * 5: quit | |
4191 * 6: abort | |
4192 */ | |
4193 static int | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4194 do_swapexists(buf_T *buf, char_u *fname) |
580 | 4195 { |
4196 set_vim_var_string(VV_SWAPNAME, fname, -1); | |
4197 set_vim_var_string(VV_SWAPCHOICE, NULL, -1); | |
4198 | |
4199 /* Trigger SwapExists autocommands with <afile> set to the file being | |
1856 | 4200 * edited. Disallow changing directory here. */ |
4201 ++allbuf_lock; | |
580 | 4202 apply_autocmds(EVENT_SWAPEXISTS, buf->b_fname, NULL, FALSE, NULL); |
1856 | 4203 --allbuf_lock; |
580 | 4204 |
4205 set_vim_var_string(VV_SWAPNAME, NULL, -1); | |
4206 | |
4207 switch (*get_vim_var_str(VV_SWAPCHOICE)) | |
4208 { | |
4209 case 'o': return 1; | |
4210 case 'e': return 2; | |
4211 case 'r': return 3; | |
4212 case 'd': return 4; | |
4213 case 'q': return 5; | |
4214 case 'a': return 6; | |
4215 } | |
4216 | |
4217 return 0; | |
4218 } | |
4219 #endif | |
4220 | |
7 | 4221 /* |
4222 * Find out what name to use for the swap file for buffer 'buf'. | |
4223 * | |
4224 * Several names are tried to find one that does not exist | |
460 | 4225 * Returns the name in allocated memory or NULL. |
3158 | 4226 * When out of memory "dirp" is set to NULL. |
7 | 4227 * |
4228 * Note: If BASENAMELEN is not correct, you will get error messages for | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4229 * not being able to open the swap or undo file |
1856 | 4230 * Note: May trigger SwapExists autocmd, pointers may change! |
7 | 4231 */ |
4232 static char_u * | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4233 findswapname( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4234 buf_T *buf, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4235 char_u **dirp, /* pointer to list of directories */ |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4236 char_u *old_fname) /* don't give warning for this file name */ |
7 | 4237 { |
4238 char_u *fname; | |
4239 int n; | |
4240 char_u *dir_name; | |
4241 #ifdef AMIGA | |
4242 BPTR fh; | |
4243 #endif | |
4244 int r; | |
5432 | 4245 char_u *buf_fname = buf->b_fname; |
7 | 4246 |
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4247 #if !defined(UNIX) |
7 | 4248 # define CREATE_DUMMY_FILE |
4249 FILE *dummyfd = NULL; | |
4250 | |
5432 | 4251 # ifdef WIN3264 |
4252 if (buf_fname != NULL && !mch_isFullName(buf_fname) | |
4253 && vim_strchr(gettail(buf_fname), ':')) | |
4254 { | |
4255 char_u *t; | |
4256 | |
4257 buf_fname = vim_strsave(buf_fname); | |
4258 if (buf_fname == NULL) | |
4259 buf_fname = buf->b_fname; | |
4260 else | |
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4261 for (t = gettail(buf_fname); *t != NUL; MB_PTR_ADV(t)) |
5432 | 4262 if (*t == ':') |
4263 *t = '%'; | |
4264 } | |
4265 # endif | |
4266 | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4267 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4268 * If we start editing a new file, e.g. "test.doc", which resides on an |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4269 * MSDOS compatible filesystem, it is possible that the file |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4270 * "test.doc.swp" which we create will be exactly the same file. To avoid |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4271 * this problem we temporarily create "test.doc". Don't do this when the |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4272 * check below for a 8.3 file name is used. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4273 */ |
5432 | 4274 if (!(buf->b_p_sn || buf->b_shortname) && buf_fname != NULL |
4275 && mch_getperm(buf_fname) < 0) | |
4276 dummyfd = mch_fopen((char *)buf_fname, "w"); | |
7 | 4277 #endif |
4278 | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4279 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4280 * Isolate a directory name from *dirp and put it in dir_name. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4281 * First allocate some memory to put the directory name in. |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4282 */ |
7 | 4283 dir_name = alloc((unsigned)STRLEN(*dirp) + 1); |
3158 | 4284 if (dir_name == NULL) |
4285 *dirp = NULL; | |
4286 else | |
7 | 4287 (void)copy_option_part(dirp, dir_name, 31000, ","); |
4288 | |
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4289 /* |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4290 * we try different names until we find one that does not exist yet |
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4291 */ |
7 | 4292 if (dir_name == NULL) /* out of memory */ |
4293 fname = NULL; | |
4294 else | |
5432 | 4295 fname = makeswapname(buf_fname, buf->b_ffname, buf, dir_name); |
7 | 4296 |
4297 for (;;) | |
4298 { | |
4299 if (fname == NULL) /* must be out of memory */ | |
4300 break; | |
4301 if ((n = (int)STRLEN(fname)) == 0) /* safety check */ | |
4302 { | |
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4303 VIM_CLEAR(fname); |
7 | 4304 break; |
4305 } | |
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4306 #if defined(UNIX) |
7 | 4307 /* |
4308 * Some systems have a MS-DOS compatible filesystem that use 8.3 character | |
4309 * file names. If this is the first try and the swap file name does not fit in | |
4310 * 8.3, detect if this is the case, set shortname and try again. | |
4311 */ | |
4312 if (fname[n - 2] == 'w' && fname[n - 1] == 'p' | |
4313 && !(buf->b_p_sn || buf->b_shortname)) | |
4314 { | |
4315 char_u *tail; | |
4316 char_u *fname2; | |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4317 stat_T s1, s2; |
7 | 4318 int f1, f2; |
4319 int created1 = FALSE, created2 = FALSE; | |
4320 int same = FALSE; | |
4321 | |
4322 /* | |
4323 * Check if swapfile name does not fit in 8.3: | |
4324 * It either contains two dots, is longer than 8 chars, or starts | |
4325 * with a dot. | |
4326 */ | |
5432 | 4327 tail = gettail(buf_fname); |
7 | 4328 if ( vim_strchr(tail, '.') != NULL |
4329 || STRLEN(tail) > (size_t)8 | |
4330 || *gettail(fname) == '.') | |
4331 { | |
4332 fname2 = alloc(n + 2); | |
4333 if (fname2 != NULL) | |
4334 { | |
4335 STRCPY(fname2, fname); | |
4336 /* if fname == "xx.xx.swp", fname2 = "xx.xx.swx" | |
4337 * if fname == ".xx.swp", fname2 = ".xx.swpx" | |
4338 * if fname == "123456789.swp", fname2 = "12345678x.swp" | |
4339 */ | |
4340 if (vim_strchr(tail, '.') != NULL) | |
4341 fname2[n - 1] = 'x'; | |
4342 else if (*gettail(fname) == '.') | |
4343 { | |
4344 fname2[n] = 'x'; | |
4345 fname2[n + 1] = NUL; | |
4346 } | |
4347 else | |
4348 fname2[n - 5] += 1; | |
4349 /* | |
4350 * may need to create the files to be able to use mch_stat() | |
4351 */ | |
4352 f1 = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
4353 if (f1 < 0) | |
4354 { | |
4355 f1 = mch_open_rw((char *)fname, | |
4356 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
4357 created1 = TRUE; | |
4358 } | |
4359 if (f1 >= 0) | |
4360 { | |
4361 f2 = mch_open((char *)fname2, O_RDONLY | O_EXTRA, 0); | |
4362 if (f2 < 0) | |
4363 { | |
4364 f2 = mch_open_rw((char *)fname2, | |
4365 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
4366 created2 = TRUE; | |
4367 } | |
4368 if (f2 >= 0) | |
4369 { | |
4370 /* | |
4371 * Both files exist now. If mch_stat() returns the | |
4372 * same device and inode they are the same file. | |
4373 */ | |
4374 if (mch_fstat(f1, &s1) != -1 | |
4375 && mch_fstat(f2, &s2) != -1 | |
4376 && s1.st_dev == s2.st_dev | |
4377 && s1.st_ino == s2.st_ino) | |
4378 same = TRUE; | |
4379 close(f2); | |
4380 if (created2) | |
4381 mch_remove(fname2); | |
4382 } | |
4383 close(f1); | |
4384 if (created1) | |
4385 mch_remove(fname); | |
4386 } | |
4387 vim_free(fname2); | |
4388 if (same) | |
4389 { | |
4390 buf->b_shortname = TRUE; | |
4391 vim_free(fname); | |
5432 | 4392 fname = makeswapname(buf_fname, buf->b_ffname, |
460 | 4393 buf, dir_name); |
7 | 4394 continue; /* try again with b_shortname set */ |
4395 } | |
4396 } | |
4397 } | |
4398 } | |
4399 #endif | |
4400 /* | |
4401 * check if the swapfile already exists | |
4402 */ | |
4403 if (mch_getperm(fname) < 0) /* it does not exist */ | |
4404 { | |
4405 #ifdef HAVE_LSTAT | |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4406 stat_T sb; |
7 | 4407 |
4408 /* | |
4409 * Extra security check: When a swap file is a symbolic link, this | |
4410 * is most likely a symlink attack. | |
4411 */ | |
4412 if (mch_lstat((char *)fname, &sb) < 0) | |
4413 #else | |
4414 # ifdef AMIGA | |
4415 fh = Open((UBYTE *)fname, (long)MODE_NEWFILE); | |
4416 /* | |
4417 * on the Amiga mch_getperm() will return -1 when the file exists | |
4418 * but is being used by another program. This happens if you edit | |
4419 * a file twice. | |
4420 */ | |
4421 if (fh != (BPTR)NULL) /* can open file, OK */ | |
4422 { | |
4423 Close(fh); | |
4424 mch_remove(fname); | |
4425 break; | |
4426 } | |
4427 if (IoErr() != ERROR_OBJECT_IN_USE | |
4428 && IoErr() != ERROR_OBJECT_EXISTS) | |
4429 # endif | |
4430 #endif | |
4431 break; | |
4432 } | |
4433 | |
4434 /* | |
4435 * A file name equal to old_fname is OK to use. | |
4436 */ | |
4437 if (old_fname != NULL && fnamecmp(fname, old_fname) == 0) | |
4438 break; | |
4439 | |
4440 /* | |
4441 * get here when file already exists | |
4442 */ | |
4443 if (fname[n - 2] == 'w' && fname[n - 1] == 'p') /* first try */ | |
4444 { | |
4445 /* | |
4446 * on MS-DOS compatible filesystems (e.g. messydos) file.doc.swp | |
4447 * and file.doc are the same file. To guess if this problem is | |
4448 * present try if file.doc.swx exists. If it does, we set | |
4449 * buf->b_shortname and try file_doc.swp (dots replaced by | |
4450 * underscores for this file), and try again. If it doesn't we | |
4451 * assume that "file.doc.swp" already exists. | |
4452 */ | |
4453 if (!(buf->b_p_sn || buf->b_shortname)) /* not tried yet */ | |
4454 { | |
4455 fname[n - 1] = 'x'; | |
4456 r = mch_getperm(fname); /* try "file.swx" */ | |
4457 fname[n - 1] = 'p'; | |
4458 if (r >= 0) /* "file.swx" seems to exist */ | |
4459 { | |
4460 buf->b_shortname = TRUE; | |
4461 vim_free(fname); | |
5432 | 4462 fname = makeswapname(buf_fname, buf->b_ffname, |
460 | 4463 buf, dir_name); |
7 | 4464 continue; /* try again with '.' replaced with '_' */ |
4465 } | |
4466 } | |
4467 /* | |
4468 * If we get here the ".swp" file really exists. | |
4469 * Give an error message, unless recovering, no file name, we are | |
4470 * viewing a help file or when the path of the file is different | |
4471 * (happens when all .swp files are in one directory). | |
4472 */ | |
5432 | 4473 if (!recoverymode && buf_fname != NULL |
43 | 4474 && !buf->b_help && !(buf->b_flags & BF_DUMMY)) |
7 | 4475 { |
4476 int fd; | |
4477 struct block0 b0; | |
4478 int differ = FALSE; | |
4479 | |
4480 /* | |
4481 * Try to read block 0 from the swap file to get the original | |
4482 * file name (and inode number). | |
4483 */ | |
4484 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
4485 if (fd >= 0) | |
4486 { | |
2664 | 4487 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
7 | 4488 { |
4489 /* | |
39 | 4490 * If the swapfile has the same directory as the |
4491 * buffer don't compare the directory names, they can | |
4492 * have a different mountpoint. | |
7 | 4493 */ |
39 | 4494 if (b0.b0_flags & B0_SAME_DIR) |
4495 { | |
4496 if (fnamecmp(gettail(buf->b_ffname), | |
4497 gettail(b0.b0_fname)) != 0 | |
4498 || !same_directory(fname, buf->b_ffname)) | |
594 | 4499 { |
4500 #ifdef CHECK_INODE | |
4501 /* Symlinks may point to the same file even | |
4502 * when the name differs, need to check the | |
4503 * inode too. */ | |
4504 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
4505 if (fnamecmp_ino(buf->b_ffname, NameBuff, | |
4506 char_to_long(b0.b0_ino))) | |
4507 #endif | |
4508 differ = TRUE; | |
4509 } | |
39 | 4510 } |
4511 else | |
4512 { | |
4513 /* | |
4514 * The name in the swap file may be | |
4515 * "~user/path/file". Expand it first. | |
4516 */ | |
4517 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
7 | 4518 #ifdef CHECK_INODE |
39 | 4519 if (fnamecmp_ino(buf->b_ffname, NameBuff, |
594 | 4520 char_to_long(b0.b0_ino))) |
39 | 4521 differ = TRUE; |
7 | 4522 #else |
39 | 4523 if (fnamecmp(NameBuff, buf->b_ffname) != 0) |
4524 differ = TRUE; | |
7 | 4525 #endif |
39 | 4526 } |
7 | 4527 } |
4528 close(fd); | |
4529 } | |
4530 | |
4531 /* give the ATTENTION message when there is an old swap file | |
4532 * for the current file, and the buffer was not recovered. */ | |
4533 if (differ == FALSE && !(curbuf->b_flags & BF_RECOVERED) | |
4534 && vim_strchr(p_shm, SHM_ATTENTION) == NULL) | |
4535 { | |
580 | 4536 #if defined(HAS_SWAP_EXISTS_ACTION) |
4537 int choice = 0; | |
4538 #endif | |
7 | 4539 #ifdef CREATE_DUMMY_FILE |
4540 int did_use_dummy = FALSE; | |
4541 | |
4542 /* Avoid getting a warning for the file being created | |
4543 * outside of Vim, it was created at the start of this | |
4544 * function. Delete the file now, because Vim might exit | |
4545 * here if the window is closed. */ | |
4546 if (dummyfd != NULL) | |
4547 { | |
4548 fclose(dummyfd); | |
4549 dummyfd = NULL; | |
5432 | 4550 mch_remove(buf_fname); |
7 | 4551 did_use_dummy = TRUE; |
4552 } | |
4553 #endif | |
4554 | |
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4555 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
7 | 4556 process_still_running = FALSE; |
4557 #endif | |
13380
69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4558 #if defined(FEAT_EVAL) |
580 | 4559 /* |
4560 * If there is an SwapExists autocommand and we can handle | |
4561 * the response, trigger it. It may return 0 to ask the | |
4562 * user anyway. | |
4563 */ | |
4564 if (swap_exists_action != SEA_NONE | |
5432 | 4565 && has_autocmd(EVENT_SWAPEXISTS, buf_fname, buf)) |
580 | 4566 choice = do_swapexists(buf, fname); |
4567 | |
4568 if (choice == 0) | |
4569 #endif | |
7 | 4570 { |
580 | 4571 #ifdef FEAT_GUI |
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4572 // If we are supposed to start the GUI but it wasn't |
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4573 // completely started yet, start it now. This makes |
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4574 // the messages displayed in the Vim window when |
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4575 // loading a session from the .gvimrc file. |
580 | 4576 if (gui.starting && !gui.in_use) |
4577 gui_start(); | |
4578 #endif | |
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4579 // Show info about the existing swap file. |
580 | 4580 attention_message(buf, fname); |
4581 | |
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4582 // We don't want a 'q' typed at the more-prompt |
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4583 // interrupt loading a file. |
580 | 4584 got_int = FALSE; |
14903
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4585 |
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4586 // If vimrc has "simalt ~x" we don't want it to |
c1ee9f32bec3
patch 8.1.0463: "simalt ~x" in .vimrc blocks swap file prompt
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
4587 // interfere with the prompt here. |
14909
c97b4b537572
patch 8.1.0466: autocmd test fails
Bram Moolenaar <Bram@vim.org>
parents:
14903
diff
changeset
|
4588 flush_buffers(FLUSH_TYPEAHEAD); |
7 | 4589 } |
4590 | |
4591 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
580 | 4592 if (swap_exists_action != SEA_NONE && choice == 0) |
7 | 4593 { |
4594 char_u *name; | |
4595 | |
4596 name = alloc((unsigned)(STRLEN(fname) | |
4597 + STRLEN(_("Swap file \"")) | |
4598 + STRLEN(_("\" already exists!")) + 5)); | |
4599 if (name != NULL) | |
4600 { | |
4601 STRCPY(name, _("Swap file \"")); | |
4602 home_replace(NULL, fname, name + STRLEN(name), | |
4603 1000, TRUE); | |
4604 STRCAT(name, _("\" already exists!")); | |
4605 } | |
580 | 4606 choice = do_dialog(VIM_WARNING, |
7 | 4607 (char_u *)_("VIM - ATTENTION"), |
4608 name == NULL | |
4609 ? (char_u *)_("Swap file already exists!") | |
4610 : name, | |
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4611 # if defined(UNIX) || defined(VMS) |
7 | 4612 process_still_running |
4613 ? (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Quit\n&Abort") : | |
4614 # endif | |
2684 | 4615 (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Delete it\n&Quit\n&Abort"), 1, NULL, FALSE); |
580 | 4616 |
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4617 # if defined(UNIX) || defined(VMS) |
580 | 4618 if (process_still_running && choice >= 4) |
4619 choice++; /* Skip missing "Delete it" button */ | |
4620 # endif | |
4621 vim_free(name); | |
4622 | |
4623 /* pretend screen didn't scroll, need redraw anyway */ | |
4624 msg_scrolled = 0; | |
4625 redraw_all_later(NOT_VALID); | |
4626 } | |
4627 #endif | |
4628 | |
4629 #if defined(HAS_SWAP_EXISTS_ACTION) | |
4630 if (choice > 0) | |
4631 { | |
4632 switch (choice) | |
7 | 4633 { |
4634 case 1: | |
4635 buf->b_p_ro = TRUE; | |
4636 break; | |
4637 case 2: | |
4638 break; | |
4639 case 3: | |
4640 swap_exists_action = SEA_RECOVER; | |
4641 break; | |
4642 case 4: | |
580 | 4643 mch_remove(fname); |
4644 break; | |
4645 case 5: | |
7 | 4646 swap_exists_action = SEA_QUIT; |
4647 break; | |
580 | 4648 case 6: |
7 | 4649 swap_exists_action = SEA_QUIT; |
4650 got_int = TRUE; | |
4651 break; | |
4652 } | |
4653 | |
4654 /* If the file was deleted this fname can be used. */ | |
4655 if (mch_getperm(fname) < 0) | |
4656 break; | |
4657 } | |
4658 else | |
4659 #endif | |
4660 { | |
4661 MSG_PUTS("\n"); | |
625 | 4662 if (msg_silent == 0) |
4663 /* call wait_return() later */ | |
4664 need_wait_return = TRUE; | |
7 | 4665 } |
4666 | |
4667 #ifdef CREATE_DUMMY_FILE | |
4668 /* Going to try another name, need the dummy file again. */ | |
4669 if (did_use_dummy) | |
5432 | 4670 dummyfd = mch_fopen((char *)buf_fname, "w"); |
7 | 4671 #endif |
4672 } | |
4673 } | |
4674 } | |
4675 | |
4676 /* | |
4677 * Change the ".swp" extension to find another file that can be used. | |
4678 * First decrement the last char: ".swo", ".swn", etc. | |
4679 * If that still isn't enough decrement the last but one char: ".svz" | |
9 | 4680 * Can happen when editing many "No Name" buffers. |
7 | 4681 */ |
4682 if (fname[n - 1] == 'a') /* ".s?a" */ | |
4683 { | |
4684 if (fname[n - 2] == 'a') /* ".saa": tried enough, give up */ | |
4685 { | |
4686 EMSG(_("E326: Too many swap files found")); | |
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4687 VIM_CLEAR(fname); |
7 | 4688 break; |
4689 } | |
4690 --fname[n - 2]; /* ".svz", ".suz", etc. */ | |
4691 fname[n - 1] = 'z' + 1; | |
4692 } | |
4693 --fname[n - 1]; /* ".swo", ".swn", etc. */ | |
4694 } | |
4695 | |
4696 vim_free(dir_name); | |
4697 #ifdef CREATE_DUMMY_FILE | |
4698 if (dummyfd != NULL) /* file has been created temporarily */ | |
4699 { | |
4700 fclose(dummyfd); | |
5432 | 4701 mch_remove(buf_fname); |
7 | 4702 } |
4703 #endif | |
5432 | 4704 #ifdef WIN3264 |
4705 if (buf_fname != buf->b_fname) | |
4706 vim_free(buf_fname); | |
4707 #endif | |
7 | 4708 return fname; |
4709 } | |
4710 | |
4711 static int | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4712 b0_magic_wrong(ZERO_BL *b0p) |
7 | 4713 { |
4714 return (b0p->b0_magic_long != (long)B0_MAGIC_LONG | |
4715 || b0p->b0_magic_int != (int)B0_MAGIC_INT | |
4716 || b0p->b0_magic_short != (short)B0_MAGIC_SHORT | |
4717 || b0p->b0_magic_char != B0_MAGIC_CHAR); | |
4718 } | |
4719 | |
4720 #ifdef CHECK_INODE | |
4721 /* | |
4722 * Compare current file name with file name from swap file. | |
4723 * Try to use inode numbers when possible. | |
4724 * Return non-zero when files are different. | |
4725 * | |
4726 * When comparing file names a few things have to be taken into consideration: | |
4727 * - When working over a network the full path of a file depends on the host. | |
4728 * We check the inode number if possible. It is not 100% reliable though, | |
4729 * because the device number cannot be used over a network. | |
4730 * - When a file does not exist yet (editing a new file) there is no inode | |
4731 * number. | |
4732 * - The file name in a swap file may not be valid on the current host. The | |
4733 * "~user" form is used whenever possible to avoid this. | |
4734 * | |
4735 * This is getting complicated, let's make a table: | |
4736 * | |
4737 * ino_c ino_s fname_c fname_s differ = | |
4738 * | |
4739 * both files exist -> compare inode numbers: | |
4740 * != 0 != 0 X X ino_c != ino_s | |
4741 * | |
4742 * inode number(s) unknown, file names available -> compare file names | |
4743 * == 0 X OK OK fname_c != fname_s | |
4744 * X == 0 OK OK fname_c != fname_s | |
4745 * | |
4746 * current file doesn't exist, file for swap file exist, file name(s) not | |
4747 * available -> probably different | |
4748 * == 0 != 0 FAIL X TRUE | |
4749 * == 0 != 0 X FAIL TRUE | |
4750 * | |
4751 * current file exists, inode for swap unknown, file name(s) not | |
4752 * available -> probably different | |
4753 * != 0 == 0 FAIL X TRUE | |
4754 * != 0 == 0 X FAIL TRUE | |
4755 * | |
4756 * current file doesn't exist, inode for swap unknown, one file name not | |
4757 * available -> probably different | |
4758 * == 0 == 0 FAIL OK TRUE | |
4759 * == 0 == 0 OK FAIL TRUE | |
4760 * | |
4761 * current file doesn't exist, inode for swap unknown, both file names not | |
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4762 * available -> compare file names |
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4763 * == 0 == 0 FAIL FAIL fname_c != fname_s |
7 | 4764 * |
4765 * Note that when the ino_t is 64 bits, only the last 32 will be used. This | |
4766 * can't be changed without making the block 0 incompatible with 32 bit | |
4767 * versions. | |
4768 */ | |
4769 | |
4770 static int | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4771 fnamecmp_ino( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4772 char_u *fname_c, /* current file name */ |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4773 char_u *fname_s, /* file name from swap file */ |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4774 long ino_block0) |
7 | 4775 { |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4776 stat_T st; |
7 | 4777 ino_t ino_c = 0; /* ino of current file */ |
4778 ino_t ino_s; /* ino of file from swap file */ | |
4779 char_u buf_c[MAXPATHL]; /* full path of fname_c */ | |
4780 char_u buf_s[MAXPATHL]; /* full path of fname_s */ | |
4781 int retval_c; /* flag: buf_c valid */ | |
4782 int retval_s; /* flag: buf_s valid */ | |
4783 | |
4784 if (mch_stat((char *)fname_c, &st) == 0) | |
4785 ino_c = (ino_t)st.st_ino; | |
4786 | |
4787 /* | |
4788 * First we try to get the inode from the file name, because the inode in | |
4789 * the swap file may be outdated. If that fails (e.g. this path is not | |
4790 * valid on this machine), use the inode from block 0. | |
4791 */ | |
4792 if (mch_stat((char *)fname_s, &st) == 0) | |
4793 ino_s = (ino_t)st.st_ino; | |
4794 else | |
4795 ino_s = (ino_t)ino_block0; | |
4796 | |
4797 if (ino_c && ino_s) | |
4798 return (ino_c != ino_s); | |
4799 | |
4800 /* | |
4801 * One of the inode numbers is unknown, try a forced vim_FullName() and | |
4802 * compare the file names. | |
4803 */ | |
4804 retval_c = vim_FullName(fname_c, buf_c, MAXPATHL, TRUE); | |
4805 retval_s = vim_FullName(fname_s, buf_s, MAXPATHL, TRUE); | |
4806 if (retval_c == OK && retval_s == OK) | |
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4807 return STRCMP(buf_c, buf_s) != 0; |
7 | 4808 |
4809 /* | |
4810 * Can't compare inodes or file names, guess that the files are different, | |
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4811 * unless both appear not to exist at all, then compare with the file name |
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4812 * in the swap file. |
7 | 4813 */ |
4814 if (ino_s == 0 && ino_c == 0 && retval_c == FAIL && retval_s == FAIL) | |
13896
4d5a1ada407e
patch 8.0.1819: swap file warning for file with non-existing directory
Christian Brabandt <cb@256bit.org>
parents:
13632
diff
changeset
|
4815 return STRCMP(fname_c, fname_s) != 0; |
7 | 4816 return TRUE; |
4817 } | |
4818 #endif /* CHECK_INODE */ | |
4819 | |
4820 /* | |
4821 * Move a long integer into a four byte character array. | |
4822 * Used for machine independency in block zero. | |
4823 */ | |
4824 static void | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4825 long_to_char(long n, char_u *s) |
7 | 4826 { |
4827 s[0] = (char_u)(n & 0xff); | |
4828 n = (unsigned)n >> 8; | |
4829 s[1] = (char_u)(n & 0xff); | |
4830 n = (unsigned)n >> 8; | |
4831 s[2] = (char_u)(n & 0xff); | |
4832 n = (unsigned)n >> 8; | |
4833 s[3] = (char_u)(n & 0xff); | |
4834 } | |
4835 | |
4836 static long | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4837 char_to_long(char_u *s) |
7 | 4838 { |
4839 long retval; | |
4840 | |
4841 retval = s[3]; | |
4842 retval <<= 8; | |
4843 retval |= s[2]; | |
4844 retval <<= 8; | |
4845 retval |= s[1]; | |
4846 retval <<= 8; | |
4847 retval |= s[0]; | |
4848 | |
4849 return retval; | |
4850 } | |
4851 | |
39 | 4852 /* |
4853 * Set the flags in the first block of the swap file: | |
4854 * - file is modified or not: buf->b_changed | |
4855 * - 'fileformat' | |
4856 * - 'fileencoding' | |
4857 */ | |
7 | 4858 void |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4859 ml_setflags(buf_T *buf) |
7 | 4860 { |
4861 bhdr_T *hp; | |
4862 ZERO_BL *b0p; | |
4863 | |
4864 if (!buf->b_ml.ml_mfp) | |
4865 return; | |
4866 for (hp = buf->b_ml.ml_mfp->mf_used_last; hp != NULL; hp = hp->bh_prev) | |
4867 { | |
4868 if (hp->bh_bnum == 0) | |
4869 { | |
4870 b0p = (ZERO_BL *)(hp->bh_data); | |
39 | 4871 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; |
4872 b0p->b0_flags = (b0p->b0_flags & ~B0_FF_MASK) | |
4873 | (get_fileformat(buf) + 1); | |
4874 #ifdef FEAT_MBYTE | |
4875 add_b0_fenc(b0p, buf); | |
4876 #endif | |
7 | 4877 hp->bh_flags |= BH_DIRTY; |
4878 mf_sync(buf->b_ml.ml_mfp, MFS_ZERO); | |
4879 break; | |
4880 } | |
4881 } | |
4882 } | |
4883 | |
2267 | 4884 #if defined(FEAT_CRYPT) || defined(PROTO) |
4885 /* | |
4886 * If "data" points to a data block encrypt the text in it and return a copy | |
4887 * in allocated memory. Return NULL when out of memory. | |
4888 * Otherwise return "data". | |
4889 */ | |
4890 char_u * | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4891 ml_encrypt_data( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4892 memfile_T *mfp, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4893 char_u *data, |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4894 off_T offset, |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4895 unsigned size) |
2267 | 4896 { |
4897 DATA_BL *dp = (DATA_BL *)data; | |
4898 char_u *head_end; | |
4899 char_u *text_start; | |
4900 char_u *new_data; | |
4901 int text_len; | |
6122 | 4902 cryptstate_T *state; |
2267 | 4903 |
4904 if (dp->db_id != DATA_ID) | |
4905 return data; | |
4906 | |
6817 | 4907 state = ml_crypt_prepare(mfp, offset, FALSE); |
4908 if (state == NULL) | |
4909 return data; | |
4910 | |
2267 | 4911 new_data = (char_u *)alloc(size); |
4912 if (new_data == NULL) | |
4913 return NULL; | |
4914 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
4915 text_start = (char_u *)dp + dp->db_txt_start; | |
4916 text_len = size - dp->db_txt_start; | |
4917 | |
4918 /* Copy the header and the text. */ | |
4919 mch_memmove(new_data, dp, head_end - (char_u *)dp); | |
4920 | |
4921 /* Encrypt the text. */ | |
6122 | 4922 crypt_encode(state, text_start, text_len, new_data + dp->db_txt_start); |
4923 crypt_free_state(state); | |
2267 | 4924 |
4925 /* Clear the gap. */ | |
4926 if (head_end < text_start) | |
4927 vim_memset(new_data + (head_end - data), 0, text_start - head_end); | |
4928 | |
4929 return new_data; | |
4930 } | |
4931 | |
4932 /* | |
6817 | 4933 * Decrypt the text in "data" if it points to an encrypted data block. |
2267 | 4934 */ |
4935 void | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4936 ml_decrypt_data( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4937 memfile_T *mfp, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4938 char_u *data, |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4939 off_T offset, |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4940 unsigned size) |
2267 | 4941 { |
4942 DATA_BL *dp = (DATA_BL *)data; | |
4943 char_u *head_end; | |
4944 char_u *text_start; | |
4945 int text_len; | |
6122 | 4946 cryptstate_T *state; |
2267 | 4947 |
4948 if (dp->db_id == DATA_ID) | |
4949 { | |
4950 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
4951 text_start = (char_u *)dp + dp->db_txt_start; | |
4952 text_len = dp->db_txt_end - dp->db_txt_start; | |
4953 | |
4954 if (head_end > text_start || dp->db_txt_start > size | |
4955 || dp->db_txt_end > size) | |
4956 return; /* data was messed up */ | |
4957 | |
6122 | 4958 state = ml_crypt_prepare(mfp, offset, TRUE); |
6817 | 4959 if (state != NULL) |
4960 { | |
4961 /* Decrypt the text in place. */ | |
4962 crypt_decode_inplace(state, text_start, text_len); | |
4963 crypt_free_state(state); | |
4964 } | |
2267 | 4965 } |
4966 } | |
4967 | |
4968 /* | |
4969 * Prepare for encryption/decryption, using the key, seed and offset. | |
6122 | 4970 * Return an allocated cryptstate_T *. |
2267 | 4971 */ |
6122 | 4972 static cryptstate_T * |
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4973 ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading) |
2267 | 4974 { |
4975 buf_T *buf = mfp->mf_buffer; | |
4976 char_u salt[50]; | |
6122 | 4977 int method_nr; |
2267 | 4978 char_u *key; |
4979 char_u *seed; | |
4980 | |
4981 if (reading && mfp->mf_old_key != NULL) | |
4982 { | |
4983 /* Reading back blocks with the previous key/method/seed. */ | |
6122 | 4984 method_nr = mfp->mf_old_cm; |
2267 | 4985 key = mfp->mf_old_key; |
4986 seed = mfp->mf_old_seed; | |
4987 } | |
4988 else | |
4989 { | |
6122 | 4990 method_nr = crypt_get_method_nr(buf); |
2267 | 4991 key = buf->b_p_key; |
4992 seed = mfp->mf_seed; | |
4993 } | |
6817 | 4994 if (*key == NUL) |
4995 return NULL; | |
2267 | 4996 |
6122 | 4997 if (method_nr == CRYPT_M_ZIP) |
2267 | 4998 { |
6122 | 4999 /* For PKzip: Append the offset to the key, so that we use a different |
5000 * key for every block. */ | |
2267 | 5001 vim_snprintf((char *)salt, sizeof(salt), "%s%ld", key, (long)offset); |
6122 | 5002 return crypt_create(method_nr, salt, NULL, 0, NULL, 0); |
2267 | 5003 } |
6122 | 5004 |
5005 /* Using blowfish or better: add salt and seed. We use the byte offset | |
5006 * of the block for the salt. */ | |
5007 vim_snprintf((char *)salt, sizeof(salt), "%ld", (long)offset); | |
5008 return crypt_create(method_nr, key, salt, (int)STRLEN(salt), | |
5009 seed, MF_SEED_LEN); | |
2267 | 5010 } |
5011 | |
5012 #endif | |
5013 | |
5014 | |
7 | 5015 #if defined(FEAT_BYTEOFF) || defined(PROTO) |
5016 | |
5017 #define MLCS_MAXL 800 /* max no of lines in chunk */ | |
5018 #define MLCS_MINL 400 /* should be half of MLCS_MAXL */ | |
5019 | |
5020 /* | |
2407
6bc102a4bff8
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parents:
2394
diff
changeset
|
5021 * Keep information for finding byte offset of a line, updtype may be one of: |
7 | 5022 * ML_CHNK_ADDLINE: Add len to parent chunk, possibly splitting it |
5023 * Careful: ML_CHNK_ADDLINE may cause ml_find_line() to be called. | |
5024 * ML_CHNK_DELLINE: Subtract len from parent chunk, possibly deleting it | |
5025 * ML_CHNK_UPDLINE: Add len to parent chunk, as a signed entity. | |
5026 */ | |
5027 static void | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5028 ml_updatechunk( |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5029 buf_T *buf, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5030 linenr_T line, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5031 long len, |
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5032 int updtype) |
7 | 5033 { |
5034 static buf_T *ml_upd_lastbuf = NULL; | |
5035 static linenr_T ml_upd_lastline; | |
5036 static linenr_T ml_upd_lastcurline; | |
5037 static int ml_upd_lastcurix; | |
5038 | |
5039 linenr_T curline = ml_upd_lastcurline; | |
5040 int curix = ml_upd_lastcurix; | |
5041 long size; | |
5042 chunksize_T *curchnk; | |
5043 int rest; | |
5044 bhdr_T *hp; | |
5045 DATA_BL *dp; | |
5046 | |
5047 if (buf->b_ml.ml_usedchunks == -1 || len == 0) | |
5048 return; | |
5049 if (buf->b_ml.ml_chunksize == NULL) | |
5050 { | |
5051 buf->b_ml.ml_chunksize = (chunksize_T *) | |
5052 alloc((unsigned)sizeof(chunksize_T) * 100); | |
5053 if (buf->b_ml.ml_chunksize == NULL) | |
5054 { | |
5055 buf->b_ml.ml_usedchunks = -1; | |
5056 return; | |
5057 } | |
5058 buf->b_ml.ml_numchunks = 100; | |
5059 buf->b_ml.ml_usedchunks = 1; | |
5060 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
5061 buf->b_ml.ml_chunksize[0].mlcs_totalsize = 1; | |
5062 } | |
5063 | |
5064 if (updtype == ML_CHNK_UPDLINE && buf->b_ml.ml_line_count == 1) | |
5065 { | |
5066 /* | |
5067 * First line in empty buffer from ml_flush_line() -- reset | |
5068 */ | |
5069 buf->b_ml.ml_usedchunks = 1; | |
5070 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
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diff
changeset
|
5071 buf->b_ml.ml_chunksize[0].mlcs_totalsize = (long)buf->b_ml.ml_line_len; |
7 | 5072 return; |
5073 } | |
5074 | |
5075 /* | |
5076 * Find chunk that our line belongs to, curline will be at start of the | |
5077 * chunk. | |
5078 */ | |
5079 if (buf != ml_upd_lastbuf || line != ml_upd_lastline + 1 | |
5080 || updtype != ML_CHNK_ADDLINE) | |
5081 { | |
5082 for (curline = 1, curix = 0; | |
5083 curix < buf->b_ml.ml_usedchunks - 1 | |
5084 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
5085 curix++) | |
5086 { | |
5087 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
5088 } | |
5089 } | |
14980
c98810dfebaf
patch 8.1.0501: cppcheck warns for using array index before bounds check
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parents:
14923
diff
changeset
|
5090 else if (curix < buf->b_ml.ml_usedchunks - 1 |
c98810dfebaf
patch 8.1.0501: cppcheck warns for using array index before bounds check
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14923
diff
changeset
|
5091 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) |
7 | 5092 { |
5093 /* Adjust cached curix & curline */ | |
5094 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
5095 curix++; | |
5096 } | |
5097 curchnk = buf->b_ml.ml_chunksize + curix; | |
5098 | |
5099 if (updtype == ML_CHNK_DELLINE) | |
1030 | 5100 len = -len; |
7 | 5101 curchnk->mlcs_totalsize += len; |
5102 if (updtype == ML_CHNK_ADDLINE) | |
5103 { | |
5104 curchnk->mlcs_numlines++; | |
5105 | |
5106 /* May resize here so we don't have to do it in both cases below */ | |
5107 if (buf->b_ml.ml_usedchunks + 1 >= buf->b_ml.ml_numchunks) | |
5108 { | |
6596 | 5109 chunksize_T *t_chunksize = buf->b_ml.ml_chunksize; |
5110 | |
7 | 5111 buf->b_ml.ml_numchunks = buf->b_ml.ml_numchunks * 3 / 2; |
5112 buf->b_ml.ml_chunksize = (chunksize_T *) | |
5113 vim_realloc(buf->b_ml.ml_chunksize, | |
5114 sizeof(chunksize_T) * buf->b_ml.ml_numchunks); | |
5115 if (buf->b_ml.ml_chunksize == NULL) | |
5116 { | |
5117 /* Hmmmm, Give up on offset for this buffer */ | |
6596 | 5118 vim_free(t_chunksize); |
7 | 5119 buf->b_ml.ml_usedchunks = -1; |
5120 return; | |
5121 } | |
5122 } | |
5123 | |
5124 if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MAXL) | |
5125 { | |
5126 int count; /* number of entries in block */ | |
5127 int idx; | |
15255
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Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5128 int end_idx; |
7 | 5129 int text_end; |
5130 int linecnt; | |
5131 | |
5132 mch_memmove(buf->b_ml.ml_chunksize + curix + 1, | |
5133 buf->b_ml.ml_chunksize + curix, | |
5134 (buf->b_ml.ml_usedchunks - curix) * | |
5135 sizeof(chunksize_T)); | |
1855 | 5136 /* Compute length of first half of lines in the split chunk */ |
7 | 5137 size = 0; |
5138 linecnt = 0; | |
5139 while (curline < buf->b_ml.ml_line_count | |
5140 && linecnt < MLCS_MINL) | |
5141 { | |
5142 if ((hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
5143 { | |
5144 buf->b_ml.ml_usedchunks = -1; | |
5145 return; | |
5146 } | |
5147 dp = (DATA_BL *)(hp->bh_data); | |
5148 count = (long)(buf->b_ml.ml_locked_high) - | |
5149 (long)(buf->b_ml.ml_locked_low) + 1; | |
5150 idx = curline - buf->b_ml.ml_locked_low; | |
5151 curline = buf->b_ml.ml_locked_high + 1; | |
15255
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Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5152 |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5153 // compute index of last line to use in this MEMLINE |
7 | 5154 rest = count - idx; |
5155 if (linecnt + rest > MLCS_MINL) | |
5156 { | |
15255
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5157 end_idx = idx + MLCS_MINL - linecnt - 1; |
7 | 5158 linecnt = MLCS_MINL; |
5159 } | |
5160 else | |
5161 { | |
15255
19e79a1ed6b6
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Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5162 end_idx = count - 1; |
7 | 5163 linecnt += rest; |
5164 } | |
15255
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5165 #ifdef FEAT_TEXT_PROP |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5166 if (buf->b_has_textprop) |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5167 { |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5168 int i; |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5169 |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5170 // We cannot use the text pointers to get the text length, |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5171 // the text prop info would also be counted. Go over the |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5172 // lines. |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5173 for (i = end_idx; i < idx; ++i) |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5174 size += STRLEN((char_u *)dp + (dp->db_index[i] & DB_INDEX_MASK)) + 1; |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5175 } |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5176 else |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5177 #endif |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5178 { |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5179 if (idx == 0)/* first line in block, text at the end */ |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5180 text_end = dp->db_txt_end; |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5181 else |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5182 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5183 size += text_end - ((dp->db_index[end_idx]) & DB_INDEX_MASK); |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5184 } |
7 | 5185 } |
5186 buf->b_ml.ml_chunksize[curix].mlcs_numlines = linecnt; | |
5187 buf->b_ml.ml_chunksize[curix + 1].mlcs_numlines -= linecnt; | |
5188 buf->b_ml.ml_chunksize[curix].mlcs_totalsize = size; | |
5189 buf->b_ml.ml_chunksize[curix + 1].mlcs_totalsize -= size; | |
5190 buf->b_ml.ml_usedchunks++; | |
5191 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
5192 return; | |
5193 } | |
5194 else if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MINL | |
5195 && curix == buf->b_ml.ml_usedchunks - 1 | |
5196 && buf->b_ml.ml_line_count - line <= 1) | |
5197 { | |
5198 /* | |
5199 * We are in the last chunk and it is cheap to crate a new one | |
5200 * after this. Do it now to avoid the loop above later on | |
5201 */ | |
5202 curchnk = buf->b_ml.ml_chunksize + curix + 1; | |
5203 buf->b_ml.ml_usedchunks++; | |
5204 if (line == buf->b_ml.ml_line_count) | |
5205 { | |
5206 curchnk->mlcs_numlines = 0; | |
5207 curchnk->mlcs_totalsize = 0; | |
5208 } | |
5209 else | |
5210 { | |
5211 /* | |
5212 * Line is just prior to last, move count for last | |
5213 * This is the common case when loading a new file | |
5214 */ | |
5215 hp = ml_find_line(buf, buf->b_ml.ml_line_count, ML_FIND); | |
5216 if (hp == NULL) | |
5217 { | |
5218 buf->b_ml.ml_usedchunks = -1; | |
5219 return; | |
5220 } | |
5221 dp = (DATA_BL *)(hp->bh_data); | |
5222 if (dp->db_line_count == 1) | |
5223 rest = dp->db_txt_end - dp->db_txt_start; | |
5224 else | |
5225 rest = | |
5226 ((dp->db_index[dp->db_line_count - 2]) & DB_INDEX_MASK) | |
5227 - dp->db_txt_start; | |
5228 curchnk->mlcs_totalsize = rest; | |
5229 curchnk->mlcs_numlines = 1; | |
5230 curchnk[-1].mlcs_totalsize -= rest; | |
5231 curchnk[-1].mlcs_numlines -= 1; | |
5232 } | |
5233 } | |
5234 } | |
5235 else if (updtype == ML_CHNK_DELLINE) | |
5236 { | |
5237 curchnk->mlcs_numlines--; | |
5238 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
5239 if (curix < (buf->b_ml.ml_usedchunks - 1) | |
5240 && (curchnk->mlcs_numlines + curchnk[1].mlcs_numlines) | |
5241 <= MLCS_MINL) | |
5242 { | |
5243 curix++; | |
5244 curchnk = buf->b_ml.ml_chunksize + curix; | |
5245 } | |
5246 else if (curix == 0 && curchnk->mlcs_numlines <= 0) | |
5247 { | |
5248 buf->b_ml.ml_usedchunks--; | |
5249 mch_memmove(buf->b_ml.ml_chunksize, buf->b_ml.ml_chunksize + 1, | |
5250 buf->b_ml.ml_usedchunks * sizeof(chunksize_T)); | |
5251 return; | |
5252 } | |
5253 else if (curix == 0 || (curchnk->mlcs_numlines > 10 | |
5254 && (curchnk->mlcs_numlines + curchnk[-1].mlcs_numlines) | |
5255 > MLCS_MINL)) | |
5256 { | |
5257 return; | |
5258 } | |
5259 | |
5260 /* Collapse chunks */ | |
5261 curchnk[-1].mlcs_numlines += curchnk->mlcs_numlines; | |
5262 curchnk[-1].mlcs_totalsize += curchnk->mlcs_totalsize; | |
5263 buf->b_ml.ml_usedchunks--; | |
5264 if (curix < buf->b_ml.ml_usedchunks) | |
5265 { | |
5266 mch_memmove(buf->b_ml.ml_chunksize + curix, | |
5267 buf->b_ml.ml_chunksize + curix + 1, | |
5268 (buf->b_ml.ml_usedchunks - curix) * | |
5269 sizeof(chunksize_T)); | |
5270 } | |
5271 return; | |
5272 } | |
5273 ml_upd_lastbuf = buf; | |
5274 ml_upd_lastline = line; | |
5275 ml_upd_lastcurline = curline; | |
5276 ml_upd_lastcurix = curix; | |
5277 } | |
5278 | |
5279 /* | |
5280 * Find offset for line or line with offset. | |
169 | 5281 * Find line with offset if "lnum" is 0; return remaining offset in offp |
5282 * Find offset of line if "lnum" > 0 | |
7 | 5283 * return -1 if information is not available |
5284 */ | |
5285 long | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5286 ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp) |
7 | 5287 { |
5288 linenr_T curline; | |
5289 int curix; | |
5290 long size; | |
5291 bhdr_T *hp; | |
5292 DATA_BL *dp; | |
5293 int count; /* number of entries in block */ | |
5294 int idx; | |
5295 int start_idx; | |
5296 int text_end; | |
5297 long offset; | |
5298 int len; | |
5299 int ffdos = (get_fileformat(buf) == EOL_DOS); | |
5300 int extra = 0; | |
5301 | |
169 | 5302 /* take care of cached line first */ |
5303 ml_flush_line(curbuf); | |
5304 | |
7 | 5305 if (buf->b_ml.ml_usedchunks == -1 |
5306 || buf->b_ml.ml_chunksize == NULL | |
169 | 5307 || lnum < 0) |
7 | 5308 return -1; |
5309 | |
5310 if (offp == NULL) | |
5311 offset = 0; | |
5312 else | |
5313 offset = *offp; | |
169 | 5314 if (lnum == 0 && offset <= 0) |
7 | 5315 return 1; /* Not a "find offset" and offset 0 _must_ be in line 1 */ |
5316 /* | |
5317 * Find the last chunk before the one containing our line. Last chunk is | |
5318 * special because it will never qualify | |
5319 */ | |
5320 curline = 1; | |
5321 curix = size = 0; | |
5322 while (curix < buf->b_ml.ml_usedchunks - 1 | |
169 | 5323 && ((lnum != 0 |
5324 && lnum >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) | |
7 | 5325 || (offset != 0 |
5326 && offset > size + buf->b_ml.ml_chunksize[curix].mlcs_totalsize | |
5327 + ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) | |
5328 { | |
5329 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
5330 size += buf->b_ml.ml_chunksize[curix].mlcs_totalsize; | |
5331 if (offset && ffdos) | |
5332 size += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
5333 curix++; | |
5334 } | |
5335 | |
169 | 5336 while ((lnum != 0 && curline < lnum) || (offset != 0 && size < offset)) |
7 | 5337 { |
5338 if (curline > buf->b_ml.ml_line_count | |
5339 || (hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
5340 return -1; | |
5341 dp = (DATA_BL *)(hp->bh_data); | |
5342 count = (long)(buf->b_ml.ml_locked_high) - | |
5343 (long)(buf->b_ml.ml_locked_low) + 1; | |
5344 start_idx = idx = curline - buf->b_ml.ml_locked_low; | |
5345 if (idx == 0)/* first line in block, text at the end */ | |
5346 text_end = dp->db_txt_end; | |
5347 else | |
5348 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
5349 /* Compute index of last line to use in this MEMLINE */ | |
169 | 5350 if (lnum != 0) |
7 | 5351 { |
169 | 5352 if (curline + (count - idx) >= lnum) |
5353 idx += lnum - curline - 1; | |
7 | 5354 else |
5355 idx = count - 1; | |
5356 } | |
5357 else | |
5358 { | |
5359 extra = 0; | |
5360 while (offset >= size | |
5361 + text_end - (int)((dp->db_index[idx]) & DB_INDEX_MASK) | |
5362 + ffdos) | |
5363 { | |
5364 if (ffdos) | |
5365 size++; | |
5366 if (idx == count - 1) | |
5367 { | |
5368 extra = 1; | |
5369 break; | |
5370 } | |
5371 idx++; | |
5372 } | |
5373 } | |
15255
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5374 #ifdef FEAT_TEXT_PROP |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5375 if (buf->b_has_textprop) |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5376 { |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5377 int i; |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5378 |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5379 // cannot use the db_index pointer, need to get the actual text |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5380 // lengths. |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5381 len = 0; |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5382 for (i = start_idx; i <= idx; ++i) |
15269
27783a6f430b
patch 8.1.0643: computing byte offset wrong
Bram Moolenaar <Bram@vim.org>
parents:
15267
diff
changeset
|
5383 len += STRLEN((char_u *)dp + ((dp->db_index[i]) & DB_INDEX_MASK)) + 1; |
15255
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5384 } |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5385 else |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5386 #endif |
19e79a1ed6b6
patch 8.1.0636: line2byte() gives wrong values with text properties
Bram Moolenaar <Bram@vim.org>
parents:
15182
diff
changeset
|
5387 len = text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); |
7 | 5388 size += len; |
5389 if (offset != 0 && size >= offset) | |
5390 { | |
5391 if (size + ffdos == offset) | |
5392 *offp = 0; | |
5393 else if (idx == start_idx) | |
5394 *offp = offset - size + len; | |
5395 else | |
5396 *offp = offset - size + len | |
5397 - (text_end - ((dp->db_index[idx - 1]) & DB_INDEX_MASK)); | |
5398 curline += idx - start_idx + extra; | |
5399 if (curline > buf->b_ml.ml_line_count) | |
5400 return -1; /* exactly one byte beyond the end */ | |
5401 return curline; | |
5402 } | |
5403 curline = buf->b_ml.ml_locked_high + 1; | |
5404 } | |
5405 | |
169 | 5406 if (lnum != 0) |
20 | 5407 { |
5408 /* Count extra CR characters. */ | |
5409 if (ffdos) | |
169 | 5410 size += lnum - 1; |
20 | 5411 |
6933 | 5412 /* Don't count the last line break if 'noeol' and ('bin' or |
5413 * 'nofixeol'). */ | |
5414 if ((!buf->b_p_fixeol || buf->b_p_bin) && !buf->b_p_eol | |
14579
23d6d9e9ae3e
patch 8.1.0303: line2byte() is wrong for last line with 'noeol'
Christian Brabandt <cb@256bit.org>
parents:
14475
diff
changeset
|
5415 && lnum > buf->b_ml.ml_line_count) |
20 | 5416 size -= ffdos + 1; |
5417 } | |
5418 | |
7 | 5419 return size; |
5420 } | |
5421 | |
5422 /* | |
5423 * Goto byte in buffer with offset 'cnt'. | |
5424 */ | |
5425 void | |
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5426 goto_byte(long cnt) |
7 | 5427 { |
5428 long boff = cnt; | |
5429 linenr_T lnum; | |
5430 | |
5431 ml_flush_line(curbuf); /* cached line may be dirty */ | |
5432 setpcmark(); | |
5433 if (boff) | |
5434 --boff; | |
5435 lnum = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); | |
5436 if (lnum < 1) /* past the end */ | |
5437 { | |
5438 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
5439 curwin->w_curswant = MAXCOL; | |
5440 coladvance((colnr_T)MAXCOL); | |
5441 } | |
5442 else | |
5443 { | |
5444 curwin->w_cursor.lnum = lnum; | |
5445 curwin->w_cursor.col = (colnr_T)boff; | |
572 | 5446 # ifdef FEAT_VIRTUALEDIT |
5447 curwin->w_cursor.coladd = 0; | |
5448 # endif | |
7 | 5449 curwin->w_set_curswant = TRUE; |
5450 } | |
5451 check_cursor(); | |
5452 | |
5453 # ifdef FEAT_MBYTE | |
5454 /* Make sure the cursor is on the first byte of a multi-byte char. */ | |
5455 if (has_mbyte) | |
5456 mb_adjust_cursor(); | |
5457 # endif | |
5458 } | |
5459 #endif |