Mercurial > vim
annotate src/memline.c @ 14642:96858d612aff v8.1.0334
patch 8.1.0334: 'autowrite' takes effect when buffer is not to be written
commit https://github.com/vim/vim/commit/8c9e7b00f6566dc41e794ef11c93d93b034c7134
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Aug 30 13:07:17 2018 +0200
patch 8.1.0334: 'autowrite' takes effect when buffer is not to be written
Problem: 'autowrite' takes effect when buffer is not to be written.
Solution: Don't write buffers that are not supposed to be written. (Even Q
Jones, closes #3391) Add tests for 'autowrite'.
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Thu, 30 Aug 2018 13:15:06 +0200 |
| parents | b8daa070473b |
| children | 27b9a84395b5 |
| 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_mfp_crypt(buf_T *buf); |
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239 static void ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p); |
| 2267 | 240 #endif |
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241 static int ml_check_b0_id(ZERO_BL *b0p); |
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242 static void ml_upd_block0(buf_T *buf, upd_block0_T what); |
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243 static void set_b0_fname(ZERO_BL *, buf_T *buf); |
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244 static void set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf); |
| 39 | 245 #ifdef FEAT_MBYTE |
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246 static void add_b0_fenc(ZERO_BL *b0p, buf_T *buf); |
| 39 | 247 #endif |
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248 static time_t swapfile_info(char_u *); |
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249 static int recov_file_names(char_u **, char_u *, int prepend_dot); |
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250 static int ml_append_int(buf_T *, linenr_T, char_u *, colnr_T, int, int); |
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251 static int ml_delete_int(buf_T *, linenr_T, int); |
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252 static char_u *findswapname(buf_T *, char_u **, char_u *); |
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253 static void ml_flush_line(buf_T *); |
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254 static bhdr_T *ml_new_data(memfile_T *, int, int); |
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255 static bhdr_T *ml_new_ptr(memfile_T *); |
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256 static bhdr_T *ml_find_line(buf_T *, linenr_T, int); |
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257 static int ml_add_stack(buf_T *); |
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258 static void ml_lineadd(buf_T *, int); |
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259 static int b0_magic_wrong(ZERO_BL *); |
| 7 | 260 #ifdef CHECK_INODE |
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261 static int fnamecmp_ino(char_u *, char_u *, long); |
| 7 | 262 #endif |
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263 static void long_to_char(long, char_u *); |
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264 static long char_to_long(char_u *); |
| 2267 | 265 #ifdef FEAT_CRYPT |
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266 static cryptstate_T *ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading); |
| 2267 | 267 #endif |
| 7 | 268 #ifdef FEAT_BYTEOFF |
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269 static void ml_updatechunk(buf_T *buf, long line, long len, int updtype); |
| 7 | 270 #endif |
| 271 | |
| 272 /* | |
| 625 | 273 * Open a new memline for "buf". |
| 7 | 274 * |
| 625 | 275 * Return FAIL for failure, OK otherwise. |
| 7 | 276 */ |
| 277 int | |
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278 ml_open(buf_T *buf) |
| 7 | 279 { |
| 280 memfile_T *mfp; | |
| 281 bhdr_T *hp = NULL; | |
| 282 ZERO_BL *b0p; | |
| 283 PTR_BL *pp; | |
| 284 DATA_BL *dp; | |
| 285 | |
| 625 | 286 /* |
| 287 * init fields in memline struct | |
| 288 */ | |
| 2267 | 289 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 625 | 290 buf->b_ml.ml_stack = NULL; /* no stack yet */ |
| 291 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 292 buf->b_ml.ml_locked = NULL; /* no cached block */ | |
| 293 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 7 | 294 #ifdef FEAT_BYTEOFF |
| 625 | 295 buf->b_ml.ml_chunksize = NULL; |
| 7 | 296 #endif |
| 297 | |
| 5737 | 298 if (cmdmod.noswapfile) |
| 299 buf->b_p_swf = FALSE; | |
| 300 | |
| 625 | 301 /* |
| 302 * When 'updatecount' is non-zero swap file may be opened later. | |
| 303 */ | |
| 304 if (p_uc && buf->b_p_swf) | |
| 305 buf->b_may_swap = TRUE; | |
| 7 | 306 else |
| 625 | 307 buf->b_may_swap = FALSE; |
| 308 | |
| 309 /* | |
| 310 * Open the memfile. No swap file is created yet. | |
| 311 */ | |
| 7 | 312 mfp = mf_open(NULL, 0); |
| 313 if (mfp == NULL) | |
| 314 goto error; | |
| 315 | |
| 625 | 316 buf->b_ml.ml_mfp = mfp; |
| 2267 | 317 #ifdef FEAT_CRYPT |
| 318 mfp->mf_buffer = buf; | |
| 319 #endif | |
| 625 | 320 buf->b_ml.ml_flags = ML_EMPTY; |
| 321 buf->b_ml.ml_line_count = 1; | |
| 13 | 322 #ifdef FEAT_LINEBREAK |
| 323 curwin->w_nrwidth_line_count = 0; | |
| 324 #endif | |
| 7 | 325 |
| 326 /* | |
| 327 * fill block0 struct and write page 0 | |
| 328 */ | |
| 329 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 330 goto error; | |
| 331 if (hp->bh_bnum != 0) | |
| 332 { | |
|
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66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
333 IEMSG(_("E298: Didn't get block nr 0?")); |
| 7 | 334 goto error; |
| 335 } | |
| 336 b0p = (ZERO_BL *)(hp->bh_data); | |
| 337 | |
| 338 b0p->b0_id[0] = BLOCK0_ID0; | |
| 339 b0p->b0_id[1] = BLOCK0_ID1; | |
| 340 b0p->b0_magic_long = (long)B0_MAGIC_LONG; | |
| 341 b0p->b0_magic_int = (int)B0_MAGIC_INT; | |
| 342 b0p->b0_magic_short = (short)B0_MAGIC_SHORT; | |
| 343 b0p->b0_magic_char = B0_MAGIC_CHAR; | |
|
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patch 8.1.0023: gcc 8.1 warns for use of strncpy()
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
344 mch_memmove(b0p->b0_version, "VIM ", 4); |
| 7 | 345 STRNCPY(b0p->b0_version + 4, Version, 6); |
| 346 long_to_char((long)mfp->mf_page_size, b0p->b0_page_size); | |
| 625 | 347 |
| 800 | 348 #ifdef FEAT_SPELL |
| 349 if (!buf->b_spell) | |
| 350 #endif | |
| 625 | 351 { |
| 352 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; | |
| 353 b0p->b0_flags = get_fileformat(buf) + 1; | |
| 354 set_b0_fname(b0p, buf); | |
| 355 (void)get_user_name(b0p->b0_uname, B0_UNAME_SIZE); | |
| 356 b0p->b0_uname[B0_UNAME_SIZE - 1] = NUL; | |
| 357 mch_get_host_name(b0p->b0_hname, B0_HNAME_SIZE); | |
| 358 b0p->b0_hname[B0_HNAME_SIZE - 1] = NUL; | |
| 359 long_to_char(mch_get_pid(), b0p->b0_pid); | |
| 2267 | 360 #ifdef FEAT_CRYPT |
| 6122 | 361 ml_set_b0_crypt(buf, b0p); |
| 2267 | 362 #endif |
| 625 | 363 } |
| 7 | 364 |
| 365 /* | |
| 366 * Always sync block number 0 to disk, so we can check the file name in | |
| 2267 | 367 * the swap file in findswapname(). Don't do this for a help files or |
| 368 * a spell buffer though. | |
| 7 | 369 * Only works when there's a swapfile, otherwise it's done when the file |
| 370 * is created. | |
| 371 */ | |
| 372 mf_put(mfp, hp, TRUE, FALSE); | |
| 625 | 373 if (!buf->b_help && !B_SPELL(buf)) |
| 7 | 374 (void)mf_sync(mfp, 0); |
| 375 | |
| 625 | 376 /* |
| 377 * Fill in root pointer block and write page 1. | |
| 378 */ | |
| 7 | 379 if ((hp = ml_new_ptr(mfp)) == NULL) |
| 380 goto error; | |
| 381 if (hp->bh_bnum != 1) | |
| 382 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
383 IEMSG(_("E298: Didn't get block nr 1?")); |
| 7 | 384 goto error; |
| 385 } | |
| 386 pp = (PTR_BL *)(hp->bh_data); | |
| 387 pp->pb_count = 1; | |
| 388 pp->pb_pointer[0].pe_bnum = 2; | |
| 389 pp->pb_pointer[0].pe_page_count = 1; | |
| 390 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 391 pp->pb_pointer[0].pe_line_count = 1; /* line count after insertion */ | |
| 392 mf_put(mfp, hp, TRUE, FALSE); | |
| 393 | |
| 625 | 394 /* |
| 395 * Allocate first data block and create an empty line 1. | |
| 396 */ | |
| 7 | 397 if ((hp = ml_new_data(mfp, FALSE, 1)) == NULL) |
| 398 goto error; | |
| 399 if (hp->bh_bnum != 2) | |
| 400 { | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
401 IEMSG(_("E298: Didn't get block nr 2?")); |
| 7 | 402 goto error; |
| 403 } | |
| 404 | |
| 405 dp = (DATA_BL *)(hp->bh_data); | |
| 406 dp->db_index[0] = --dp->db_txt_start; /* at end of block */ | |
| 407 dp->db_free -= 1 + INDEX_SIZE; | |
| 408 dp->db_line_count = 1; | |
| 2003 | 409 *((char_u *)dp + dp->db_txt_start) = NUL; /* empty line */ |
| 7 | 410 |
| 411 return OK; | |
| 412 | |
| 413 error: | |
| 414 if (mfp != NULL) | |
| 415 { | |
| 416 if (hp) | |
| 417 mf_put(mfp, hp, FALSE, FALSE); | |
| 418 mf_close(mfp, TRUE); /* will also free(mfp->mf_fname) */ | |
| 419 } | |
| 625 | 420 buf->b_ml.ml_mfp = NULL; |
| 7 | 421 return FAIL; |
| 422 } | |
| 423 | |
| 2267 | 424 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 425 /* | |
| 6130 | 426 * Prepare encryption for "buf" for the current key and method. |
| 427 */ | |
| 428 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
429 ml_set_mfp_crypt(buf_T *buf) |
| 6130 | 430 { |
| 431 if (*buf->b_p_key != NUL) | |
| 432 { | |
| 433 int method_nr = crypt_get_method_nr(buf); | |
| 434 | |
| 435 if (method_nr > CRYPT_M_ZIP) | |
| 436 { | |
| 437 /* Generate a seed and store it in the memfile. */ | |
| 438 sha2_seed(buf->b_ml.ml_mfp->mf_seed, MF_SEED_LEN, NULL, 0); | |
| 439 } | |
| 440 } | |
| 441 } | |
| 442 | |
| 443 /* | |
| 2267 | 444 * Prepare encryption for "buf" with block 0 "b0p". |
| 445 */ | |
| 446 static void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
447 ml_set_b0_crypt(buf_T *buf, ZERO_BL *b0p) |
| 2267 | 448 { |
| 449 if (*buf->b_p_key == NUL) | |
| 450 b0p->b0_id[1] = BLOCK0_ID1; | |
| 451 else | |
| 452 { | |
| 6122 | 453 int method_nr = crypt_get_method_nr(buf); |
| 454 | |
| 455 b0p->b0_id[1] = id1_codes[method_nr]; | |
| 456 if (method_nr > CRYPT_M_ZIP) | |
| 2267 | 457 { |
| 458 /* Generate a seed and store it in block 0 and in the memfile. */ | |
| 459 sha2_seed(&b0p->b0_seed, MF_SEED_LEN, NULL, 0); | |
| 460 mch_memmove(buf->b_ml.ml_mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); | |
| 461 } | |
| 462 } | |
| 463 } | |
| 464 | |
| 465 /* | |
| 466 * Called after the crypt key or 'cryptmethod' was changed for "buf". | |
| 467 * Will apply this to the swapfile. | |
| 468 * "old_key" is the previous key. It is equal to buf->b_p_key when | |
| 469 * 'cryptmethod' is changed. | |
|
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parents:
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diff
changeset
|
470 * "old_cm" is the previous 'cryptmethod'. It is equal to the current |
|
d8e4b27cef80
Change 'cryptmethod' from a number to a string option. Make it global-local.
Bram Moolenaar <bram@vim.org>
parents:
2283
diff
changeset
|
471 * 'cryptmethod' when 'key' is changed. |
| 2267 | 472 */ |
| 473 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
474 ml_set_crypt_key( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
475 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
476 char_u *old_key, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
477 char_u *old_cm) |
| 2267 | 478 { |
| 479 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 480 bhdr_T *hp; | |
| 481 int page_count; | |
| 482 int idx; | |
| 483 long error; | |
| 484 infoptr_T *ip; | |
| 485 PTR_BL *pp; | |
| 486 DATA_BL *dp; | |
| 487 blocknr_T bnum; | |
| 488 int top; | |
| 6817 | 489 int old_method; |
| 2267 | 490 |
|
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7901306c5a34
Fix: when setting crypt key seed was not updated when the swap file wasn't
Bram Moolenaar <bram@vim.org>
parents:
2408
diff
changeset
|
491 if (mfp == NULL) |
| 2267 | 492 return; /* no memfile yet, nothing to do */ |
| 6817 | 493 old_method = crypt_method_nr_from_name(old_cm); |
| 494 | |
| 495 /* First make sure the swapfile is in a consistent state, using the old | |
| 496 * key and method. */ | |
| 497 { | |
| 498 char_u *new_key = buf->b_p_key; | |
| 499 char_u *new_buf_cm = buf->b_p_cm; | |
| 500 | |
| 501 buf->b_p_key = old_key; | |
| 502 buf->b_p_cm = old_cm; | |
| 503 ml_preserve(buf, FALSE); | |
| 504 buf->b_p_key = new_key; | |
| 505 buf->b_p_cm = new_buf_cm; | |
| 506 } | |
| 2267 | 507 |
| 508 /* Set the key, method and seed to be used for reading, these must be the | |
| 509 * old values. */ | |
| 510 mfp->mf_old_key = old_key; | |
| 6817 | 511 mfp->mf_old_cm = old_method; |
| 512 if (old_method > 0 && *old_key != NUL) | |
| 2267 | 513 mch_memmove(mfp->mf_old_seed, mfp->mf_seed, MF_SEED_LEN); |
| 514 | |
| 515 /* Update block 0 with the crypt flag and may set a new seed. */ | |
| 516 ml_upd_block0(buf, UB_CRYPT); | |
| 517 | |
| 518 if (mfp->mf_infile_count > 2) | |
| 519 { | |
| 520 /* | |
| 521 * Need to read back all data blocks from disk, decrypt them with the | |
| 522 * old key/method and mark them to be written. The algorithm is | |
| 523 * similar to what happens in ml_recover(), but we skip negative block | |
| 524 * numbers. | |
| 525 */ | |
| 526 ml_flush_line(buf); /* flush buffered line */ | |
| 527 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 528 | |
| 529 hp = NULL; | |
| 530 bnum = 1; /* start with block 1 */ | |
| 531 page_count = 1; /* which is 1 page */ | |
| 532 idx = 0; /* start with first index in block 1 */ | |
| 533 error = 0; | |
| 534 buf->b_ml.ml_stack_top = 0; | |
|
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patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
535 VIM_CLEAR(buf->b_ml.ml_stack); |
| 2267 | 536 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 537 | |
| 538 for ( ; !got_int; line_breakcheck()) | |
| 539 { | |
| 540 if (hp != NULL) | |
| 541 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 542 | |
| 543 /* get the block (pointer or data) */ | |
| 544 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 545 { | |
| 546 if (bnum == 1) | |
| 547 break; | |
| 548 ++error; | |
| 549 } | |
| 550 else | |
| 551 { | |
| 552 pp = (PTR_BL *)(hp->bh_data); | |
| 553 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 554 { | |
| 555 if (pp->pb_count == 0) | |
| 556 { | |
| 557 /* empty block? */ | |
| 558 ++error; | |
| 559 } | |
| 560 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 561 { | |
| 562 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 563 { | |
| 6817 | 564 /* Skip data block with negative block number. |
| 565 * Should not happen, because of the ml_preserve() | |
| 566 * above. Get same block again for next index. */ | |
| 567 ++idx; | |
| 2267 | 568 continue; |
| 569 } | |
| 570 | |
| 571 /* going one block deeper in the tree, new entry in | |
| 572 * stack */ | |
| 573 if ((top = ml_add_stack(buf)) < 0) | |
| 574 { | |
| 575 ++error; | |
| 576 break; /* out of memory */ | |
| 577 } | |
| 578 ip = &(buf->b_ml.ml_stack[top]); | |
| 579 ip->ip_bnum = bnum; | |
| 580 ip->ip_index = idx; | |
| 581 | |
| 582 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 583 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 6817 | 584 idx = 0; |
| 2267 | 585 continue; |
| 586 } | |
| 587 } | |
| 588 else /* not a pointer block */ | |
| 589 { | |
| 590 dp = (DATA_BL *)(hp->bh_data); | |
| 591 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 592 ++error; | |
| 593 else | |
| 594 { | |
| 595 /* It is a data block, need to write it back to disk. */ | |
| 596 mf_put(mfp, hp, TRUE, FALSE); | |
| 597 hp = NULL; | |
| 598 } | |
| 599 } | |
| 600 } | |
| 601 | |
| 602 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 603 break; | |
| 604 | |
| 605 /* go one block up in the tree */ | |
| 606 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 607 bnum = ip->ip_bnum; | |
| 608 idx = ip->ip_index + 1; /* go to next index */ | |
| 609 page_count = 1; | |
| 610 } | |
| 6817 | 611 if (hp != NULL) |
| 612 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 2657 | 613 |
| 614 if (error > 0) | |
| 615 EMSG(_("E843: Error while updating swap file crypt")); | |
| 2267 | 616 } |
| 617 | |
| 618 mfp->mf_old_key = NULL; | |
| 619 } | |
| 620 #endif | |
| 621 | |
| 7 | 622 /* |
| 623 * ml_setname() is called when the file name of "buf" has been changed. | |
| 624 * It may rename the swap file. | |
| 625 */ | |
| 626 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
627 ml_setname(buf_T *buf) |
| 7 | 628 { |
| 629 int success = FALSE; | |
| 630 memfile_T *mfp; | |
| 631 char_u *fname; | |
| 632 char_u *dirp; | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
633 #if defined(MSWIN) |
| 7 | 634 char_u *p; |
| 635 #endif | |
| 636 | |
| 637 mfp = buf->b_ml.ml_mfp; | |
| 638 if (mfp->mf_fd < 0) /* there is no swap file yet */ | |
| 639 { | |
| 640 /* | |
| 641 * When 'updatecount' is 0 and 'noswapfile' there is no swap file. | |
| 642 * For help files we will make a swap file now. | |
| 643 */ | |
| 5737 | 644 if (p_uc != 0 && !cmdmod.noswapfile) |
| 7 | 645 ml_open_file(buf); /* create a swap file */ |
| 646 return; | |
| 647 } | |
| 648 | |
| 649 /* | |
| 650 * Try all directories in the 'directory' option. | |
| 651 */ | |
| 652 dirp = p_dir; | |
| 653 for (;;) | |
| 654 { | |
| 655 if (*dirp == NUL) /* tried all directories, fail */ | |
| 656 break; | |
| 43 | 657 fname = findswapname(buf, &dirp, mfp->mf_fname); |
| 658 /* alloc's fname */ | |
| 3158 | 659 if (dirp == NULL) /* out of memory */ |
| 660 break; | |
| 7 | 661 if (fname == NULL) /* no file name found for this dir */ |
| 662 continue; | |
| 663 | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
664 #if defined(MSWIN) |
| 7 | 665 /* |
| 666 * Set full pathname for swap file now, because a ":!cd dir" may | |
| 667 * change directory without us knowing it. | |
| 668 */ | |
| 669 p = FullName_save(fname, FALSE); | |
| 670 vim_free(fname); | |
| 671 fname = p; | |
| 672 if (fname == NULL) | |
| 673 continue; | |
| 674 #endif | |
| 675 /* if the file name is the same we don't have to do anything */ | |
| 676 if (fnamecmp(fname, mfp->mf_fname) == 0) | |
| 677 { | |
| 678 vim_free(fname); | |
| 679 success = TRUE; | |
| 680 break; | |
| 681 } | |
| 682 /* need to close the swap file before renaming */ | |
| 683 if (mfp->mf_fd >= 0) | |
| 684 { | |
| 685 close(mfp->mf_fd); | |
| 686 mfp->mf_fd = -1; | |
| 687 } | |
| 688 | |
| 689 /* try to rename the swap file */ | |
| 690 if (vim_rename(mfp->mf_fname, fname) == 0) | |
| 691 { | |
| 692 success = TRUE; | |
| 693 vim_free(mfp->mf_fname); | |
| 694 mfp->mf_fname = fname; | |
| 695 vim_free(mfp->mf_ffname); | |
|
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commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
696 #if defined(MSWIN) |
| 7 | 697 mfp->mf_ffname = NULL; /* mf_fname is full pathname already */ |
| 698 #else | |
| 699 mf_set_ffname(mfp); | |
| 700 #endif | |
| 2267 | 701 ml_upd_block0(buf, UB_SAME_DIR); |
| 7 | 702 break; |
| 703 } | |
| 704 vim_free(fname); /* this fname didn't work, try another */ | |
| 705 } | |
| 706 | |
| 707 if (mfp->mf_fd == -1) /* need to (re)open the swap file */ | |
| 708 { | |
| 709 mfp->mf_fd = mch_open((char *)mfp->mf_fname, O_RDWR | O_EXTRA, 0); | |
| 710 if (mfp->mf_fd < 0) | |
| 711 { | |
| 712 /* could not (re)open the swap file, what can we do???? */ | |
| 713 EMSG(_("E301: Oops, lost the swap file!!!")); | |
| 714 return; | |
| 715 } | |
| 2003 | 716 #ifdef HAVE_FD_CLOEXEC |
| 717 { | |
| 718 int fdflags = fcntl(mfp->mf_fd, F_GETFD); | |
| 719 if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0) | |
|
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commit https://github.com/vim/vim/commit/fbc4b4db3a9690906a96e16724350a6241cf32a5
Christian Brabandt <cb@256bit.org>
parents:
7881
diff
changeset
|
720 (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC); |
| 2003 | 721 } |
| 722 #endif | |
| 7 | 723 } |
| 724 if (!success) | |
| 725 EMSG(_("E302: Could not rename swap file")); | |
| 726 } | |
| 727 | |
| 728 /* | |
| 729 * Open a file for the memfile for all buffers that are not readonly or have | |
| 730 * been modified. | |
| 731 * Used when 'updatecount' changes from zero to non-zero. | |
| 732 */ | |
| 733 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
734 ml_open_files(void) |
| 7 | 735 { |
| 736 buf_T *buf; | |
| 737 | |
|
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fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
738 FOR_ALL_BUFFERS(buf) |
| 7 | 739 if (!buf->b_p_ro || buf->b_changed) |
| 740 ml_open_file(buf); | |
| 741 } | |
| 742 | |
| 743 /* | |
| 744 * Open a swap file for an existing memfile, if there is no swap file yet. | |
| 745 * If we are unable to find a file name, mf_fname will be NULL | |
| 746 * and the memfile will be in memory only (no recovery possible). | |
| 747 */ | |
| 748 void | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
749 ml_open_file(buf_T *buf) |
| 7 | 750 { |
| 751 memfile_T *mfp; | |
| 752 char_u *fname; | |
| 753 char_u *dirp; | |
| 754 | |
| 755 mfp = buf->b_ml.ml_mfp; | |
| 5737 | 756 if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf || cmdmod.noswapfile) |
| 7 | 757 return; /* nothing to do */ |
| 758 | |
| 748 | 759 #ifdef FEAT_SPELL |
| 625 | 760 /* For a spell buffer use a temp file name. */ |
| 761 if (buf->b_spell) | |
| 762 { | |
| 6721 | 763 fname = vim_tempname('s', FALSE); |
| 625 | 764 if (fname != NULL) |
| 765 (void)mf_open_file(mfp, fname); /* consumes fname! */ | |
| 766 buf->b_may_swap = FALSE; | |
| 767 return; | |
| 768 } | |
| 769 #endif | |
| 770 | |
| 7 | 771 /* |
| 772 * Try all directories in 'directory' option. | |
| 773 */ | |
| 774 dirp = p_dir; | |
| 775 for (;;) | |
| 776 { | |
| 777 if (*dirp == NUL) | |
| 778 break; | |
|
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779 /* There is a small chance that between choosing the swap file name |
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780 * and creating it, another Vim creates the file. In that case the |
| 7 | 781 * creation will fail and we will use another directory. */ |
| 43 | 782 fname = findswapname(buf, &dirp, NULL); /* allocates fname */ |
| 3158 | 783 if (dirp == NULL) |
| 784 break; /* out of memory */ | |
| 7 | 785 if (fname == NULL) |
| 786 continue; | |
| 787 if (mf_open_file(mfp, fname) == OK) /* consumes fname! */ | |
| 788 { | |
|
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789 #if defined(MSWIN) |
| 7 | 790 /* |
| 791 * set full pathname for swap file now, because a ":!cd dir" may | |
| 792 * change directory without us knowing it. | |
| 793 */ | |
| 794 mf_fullname(mfp); | |
| 795 #endif | |
| 2267 | 796 ml_upd_block0(buf, UB_SAME_DIR); |
| 39 | 797 |
| 7 | 798 /* Flush block zero, so others can read it */ |
| 799 if (mf_sync(mfp, MFS_ZERO) == OK) | |
| 630 | 800 { |
| 801 /* Mark all blocks that should be in the swapfile as dirty. | |
| 802 * Needed for when the 'swapfile' option was reset, so that | |
| 803 * the swap file was deleted, and then on again. */ | |
| 804 mf_set_dirty(mfp); | |
| 7 | 805 break; |
| 630 | 806 } |
| 7 | 807 /* Writing block 0 failed: close the file and try another dir */ |
| 808 mf_close_file(buf, FALSE); | |
| 809 } | |
| 810 } | |
| 811 | |
| 812 if (mfp->mf_fname == NULL) /* Failed! */ | |
| 813 { | |
| 814 need_wait_return = TRUE; /* call wait_return later */ | |
| 815 ++no_wait_return; | |
| 816 (void)EMSG2(_("E303: Unable to open swap file for \"%s\", recovery impossible"), | |
| 3839 | 817 buf_spname(buf) != NULL ? buf_spname(buf) : buf->b_fname); |
| 7 | 818 --no_wait_return; |
| 819 } | |
| 820 | |
| 821 /* don't try to open a swap file again */ | |
| 822 buf->b_may_swap = FALSE; | |
| 823 } | |
| 824 | |
| 825 /* | |
| 826 * If still need to create a swap file, and starting to edit a not-readonly | |
| 827 * file, or reading into an existing buffer, create a swap file now. | |
| 828 */ | |
| 829 void | |
|
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830 check_need_swap( |
|
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831 int newfile) // reading file into new buffer |
| 7 | 832 { |
|
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833 int old_msg_silent = msg_silent; // might be reset by an E325 message |
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834 |
| 7 | 835 if (curbuf->b_may_swap && (!curbuf->b_p_ro || !newfile)) |
| 836 ml_open_file(curbuf); | |
|
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837 msg_silent = old_msg_silent; |
| 7 | 838 } |
| 839 | |
| 840 /* | |
| 841 * Close memline for buffer 'buf'. | |
| 842 * If 'del_file' is TRUE, delete the swap file | |
| 843 */ | |
| 844 void | |
|
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845 ml_close(buf_T *buf, int del_file) |
| 7 | 846 { |
| 847 if (buf->b_ml.ml_mfp == NULL) /* not open */ | |
| 848 return; | |
| 849 mf_close(buf->b_ml.ml_mfp, del_file); /* close the .swp file */ | |
| 850 if (buf->b_ml.ml_line_lnum != 0 && (buf->b_ml.ml_flags & ML_LINE_DIRTY)) | |
| 851 vim_free(buf->b_ml.ml_line_ptr); | |
| 852 vim_free(buf->b_ml.ml_stack); | |
| 853 #ifdef FEAT_BYTEOFF | |
|
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854 VIM_CLEAR(buf->b_ml.ml_chunksize); |
| 7 | 855 #endif |
| 856 buf->b_ml.ml_mfp = NULL; | |
| 857 | |
| 858 /* Reset the "recovered" flag, give the ATTENTION prompt the next time | |
| 859 * this buffer is loaded. */ | |
| 860 buf->b_flags &= ~BF_RECOVERED; | |
| 861 } | |
| 862 | |
| 863 /* | |
| 864 * Close all existing memlines and memfiles. | |
| 865 * Only used when exiting. | |
| 866 * When 'del_file' is TRUE, delete the memfiles. | |
| 165 | 867 * But don't delete files that were ":preserve"d when we are POSIX compatible. |
| 7 | 868 */ |
| 869 void | |
|
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870 ml_close_all(int del_file) |
| 7 | 871 { |
| 872 buf_T *buf; | |
| 873 | |
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874 FOR_ALL_BUFFERS(buf) |
| 165 | 875 ml_close(buf, del_file && ((buf->b_flags & BF_PRESERVED) == 0 |
| 876 || vim_strchr(p_cpo, CPO_PRESERVE) == NULL)); | |
| 5519 | 877 #ifdef FEAT_SPELL |
| 878 spell_delete_wordlist(); /* delete the internal wordlist */ | |
| 879 #endif | |
| 7 | 880 #ifdef TEMPDIRNAMES |
| 5519 | 881 vim_deltempdir(); /* delete created temp directory */ |
| 7 | 882 #endif |
| 883 } | |
| 884 | |
| 885 /* | |
| 886 * Close all memfiles for not modified buffers. | |
| 887 * Only use just before exiting! | |
| 888 */ | |
| 889 void | |
|
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890 ml_close_notmod(void) |
| 7 | 891 { |
| 892 buf_T *buf; | |
| 893 | |
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894 FOR_ALL_BUFFERS(buf) |
| 7 | 895 if (!bufIsChanged(buf)) |
| 896 ml_close(buf, TRUE); /* close all not-modified buffers */ | |
| 897 } | |
| 898 | |
| 899 /* | |
| 900 * Update the timestamp in the .swp file. | |
| 901 * Used when the file has been written. | |
| 902 */ | |
| 903 void | |
|
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904 ml_timestamp(buf_T *buf) |
| 7 | 905 { |
| 2267 | 906 ml_upd_block0(buf, UB_FNAME); |
| 907 } | |
| 908 | |
| 909 /* | |
| 910 * Return FAIL when the ID of "b0p" is wrong. | |
| 911 */ | |
| 912 static int | |
|
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913 ml_check_b0_id(ZERO_BL *b0p) |
| 2267 | 914 { |
| 915 if (b0p->b0_id[0] != BLOCK0_ID0 | |
| 916 || (b0p->b0_id[1] != BLOCK0_ID1 | |
| 917 && b0p->b0_id[1] != BLOCK0_ID1_C0 | |
| 6122 | 918 && b0p->b0_id[1] != BLOCK0_ID1_C1 |
| 919 && b0p->b0_id[1] != BLOCK0_ID1_C2) | |
| 2267 | 920 ) |
| 921 return FAIL; | |
| 922 return OK; | |
| 39 | 923 } |
| 924 | |
| 925 /* | |
| 926 * Update the timestamp or the B0_SAME_DIR flag of the .swp file. | |
| 927 */ | |
| 928 static void | |
|
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929 ml_upd_block0(buf_T *buf, upd_block0_T what) |
| 39 | 930 { |
| 7 | 931 memfile_T *mfp; |
| 932 bhdr_T *hp; | |
| 933 ZERO_BL *b0p; | |
| 934 | |
| 935 mfp = buf->b_ml.ml_mfp; | |
| 6130 | 936 if (mfp == NULL) |
| 7 | 937 return; |
| 6130 | 938 hp = mf_get(mfp, (blocknr_T)0, 1); |
| 939 if (hp == NULL) | |
| 940 { | |
| 941 #ifdef FEAT_CRYPT | |
| 942 /* Possibly update the seed in the memfile before there is a block0. */ | |
| 943 if (what == UB_CRYPT) | |
| 944 ml_set_mfp_crypt(buf); | |
| 945 #endif | |
| 946 return; | |
| 947 } | |
| 948 | |
| 7 | 949 b0p = (ZERO_BL *)(hp->bh_data); |
| 2267 | 950 if (ml_check_b0_id(b0p) == FAIL) |
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951 IEMSG(_("E304: ml_upd_block0(): Didn't get block 0??")); |
| 7 | 952 else |
| 39 | 953 { |
| 2267 | 954 if (what == UB_FNAME) |
| 39 | 955 set_b0_fname(b0p, buf); |
| 2267 | 956 #ifdef FEAT_CRYPT |
| 957 else if (what == UB_CRYPT) | |
| 958 ml_set_b0_crypt(buf, b0p); | |
| 959 #endif | |
| 960 else /* what == UB_SAME_DIR */ | |
| 39 | 961 set_b0_dir_flag(b0p, buf); |
| 962 } | |
| 7 | 963 mf_put(mfp, hp, TRUE, FALSE); |
| 964 } | |
| 965 | |
| 966 /* | |
| 967 * Write file name and timestamp into block 0 of a swap file. | |
| 968 * Also set buf->b_mtime. | |
| 969 * Don't use NameBuff[]!!! | |
| 970 */ | |
| 971 static void | |
|
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972 set_b0_fname(ZERO_BL *b0p, buf_T *buf) |
| 7 | 973 { |
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974 stat_T st; |
| 7 | 975 |
| 976 if (buf->b_ffname == NULL) | |
| 977 b0p->b0_fname[0] = NUL; | |
| 978 else | |
| 979 { | |
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980 #if defined(MSWIN) || defined(AMIGA) |
| 39 | 981 /* Systems that cannot translate "~user" back into a path: copy the |
| 982 * file name unmodified. Do use slashes instead of backslashes for | |
| 983 * portability. */ | |
| 2267 | 984 vim_strncpy(b0p->b0_fname, buf->b_ffname, B0_FNAME_SIZE_CRYPT - 1); |
| 39 | 985 # ifdef BACKSLASH_IN_FILENAME |
| 986 forward_slash(b0p->b0_fname); | |
| 987 # endif | |
| 7 | 988 #else |
| 989 size_t flen, ulen; | |
| 990 char_u uname[B0_UNAME_SIZE]; | |
| 991 | |
| 992 /* | |
| 993 * For a file under the home directory of the current user, we try to | |
| 994 * replace the home directory path with "~user". This helps when | |
| 995 * editing the same file on different machines over a network. | |
| 996 * First replace home dir path with "~/" with home_replace(). | |
| 997 * Then insert the user name to get "~user/". | |
| 998 */ | |
| 2267 | 999 home_replace(NULL, buf->b_ffname, b0p->b0_fname, |
| 1000 B0_FNAME_SIZE_CRYPT, TRUE); | |
| 7 | 1001 if (b0p->b0_fname[0] == '~') |
| 1002 { | |
| 1003 flen = STRLEN(b0p->b0_fname); | |
| 1004 /* If there is no user name or it is too long, don't use "~/" */ | |
| 1005 if (get_user_name(uname, B0_UNAME_SIZE) == FAIL | |
| 2267 | 1006 || (ulen = STRLEN(uname)) + flen > B0_FNAME_SIZE_CRYPT - 1) |
| 1007 vim_strncpy(b0p->b0_fname, buf->b_ffname, | |
| 1008 B0_FNAME_SIZE_CRYPT - 1); | |
| 7 | 1009 else |
| 1010 { | |
| 1011 mch_memmove(b0p->b0_fname + ulen + 1, b0p->b0_fname + 1, flen); | |
| 1012 mch_memmove(b0p->b0_fname + 1, uname, ulen); | |
| 1013 } | |
| 1014 } | |
| 1015 #endif | |
| 1016 if (mch_stat((char *)buf->b_ffname, &st) >= 0) | |
| 1017 { | |
| 1018 long_to_char((long)st.st_mtime, b0p->b0_mtime); | |
| 1019 #ifdef CHECK_INODE | |
| 1020 long_to_char((long)st.st_ino, b0p->b0_ino); | |
| 1021 #endif | |
| 1022 buf_store_time(buf, &st, buf->b_ffname); | |
| 1023 buf->b_mtime_read = buf->b_mtime; | |
| 1024 } | |
| 1025 else | |
| 1026 { | |
| 1027 long_to_char(0L, b0p->b0_mtime); | |
| 1028 #ifdef CHECK_INODE | |
| 1029 long_to_char(0L, b0p->b0_ino); | |
| 1030 #endif | |
| 1031 buf->b_mtime = 0; | |
| 1032 buf->b_mtime_read = 0; | |
| 1033 buf->b_orig_size = 0; | |
| 1034 buf->b_orig_mode = 0; | |
| 1035 } | |
| 1036 } | |
| 39 | 1037 |
| 1038 #ifdef FEAT_MBYTE | |
| 1039 /* Also add the 'fileencoding' if there is room. */ | |
| 1040 add_b0_fenc(b0p, curbuf); | |
| 1041 #endif | |
| 7 | 1042 } |
| 1043 | |
| 1044 /* | |
| 39 | 1045 * Update the B0_SAME_DIR flag of the swap file. It's set if the file and the |
| 1046 * swapfile for "buf" are in the same directory. | |
| 1047 * This is fail safe: if we are not sure the directories are equal the flag is | |
| 1048 * not set. | |
| 1049 */ | |
| 1050 static void | |
|
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1051 set_b0_dir_flag(ZERO_BL *b0p, buf_T *buf) |
| 39 | 1052 { |
| 1053 if (same_directory(buf->b_ml.ml_mfp->mf_fname, buf->b_ffname)) | |
| 1054 b0p->b0_flags |= B0_SAME_DIR; | |
| 1055 else | |
| 1056 b0p->b0_flags &= ~B0_SAME_DIR; | |
| 1057 } | |
| 1058 | |
| 1059 #ifdef FEAT_MBYTE | |
| 1060 /* | |
| 1061 * When there is room, add the 'fileencoding' to block zero. | |
| 1062 */ | |
| 1063 static void | |
|
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1064 add_b0_fenc( |
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1065 ZERO_BL *b0p, |
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1066 buf_T *buf) |
| 39 | 1067 { |
| 1068 int n; | |
| 2267 | 1069 int size = B0_FNAME_SIZE_NOCRYPT; |
| 1070 | |
| 1071 # ifdef FEAT_CRYPT | |
| 1072 /* Without encryption use the same offset as in Vim 7.2 to be compatible. | |
| 1073 * With encryption it's OK to move elsewhere, the swap file is not | |
| 1074 * compatible anyway. */ | |
| 1075 if (*buf->b_p_key != NUL) | |
| 1076 size = B0_FNAME_SIZE_CRYPT; | |
| 1077 # endif | |
| 39 | 1078 |
| 835 | 1079 n = (int)STRLEN(buf->b_p_fenc); |
| 2267 | 1080 if ((int)STRLEN(b0p->b0_fname) + n + 1 > size) |
| 39 | 1081 b0p->b0_flags &= ~B0_HAS_FENC; |
| 1082 else | |
| 1083 { | |
| 2267 | 1084 mch_memmove((char *)b0p->b0_fname + size - n, |
| 39 | 1085 (char *)buf->b_p_fenc, (size_t)n); |
| 2267 | 1086 *(b0p->b0_fname + size - n - 1) = NUL; |
| 39 | 1087 b0p->b0_flags |= B0_HAS_FENC; |
| 1088 } | |
| 1089 } | |
| 1090 #endif | |
| 1091 | |
| 1092 | |
| 1093 /* | |
| 2267 | 1094 * Try to recover curbuf from the .swp file. |
| 7 | 1095 */ |
| 1096 void | |
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1097 ml_recover(void) |
| 7 | 1098 { |
| 1099 buf_T *buf = NULL; | |
| 1100 memfile_T *mfp = NULL; | |
| 1101 char_u *fname; | |
| 2267 | 1102 char_u *fname_used = NULL; |
| 7 | 1103 bhdr_T *hp = NULL; |
| 1104 ZERO_BL *b0p; | |
| 39 | 1105 int b0_ff; |
| 1106 char_u *b0_fenc = NULL; | |
| 2267 | 1107 #ifdef FEAT_CRYPT |
| 1108 int b0_cm = -1; | |
| 1109 #endif | |
| 7 | 1110 PTR_BL *pp; |
| 1111 DATA_BL *dp; | |
| 1112 infoptr_T *ip; | |
| 1113 blocknr_T bnum; | |
| 1114 int page_count; | |
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1115 stat_T org_stat, swp_stat; |
| 7 | 1116 int len; |
| 1117 int directly; | |
| 1118 linenr_T lnum; | |
| 1119 char_u *p; | |
| 1120 int i; | |
| 1121 long error; | |
| 1122 int cannot_open; | |
| 1123 linenr_T line_count; | |
| 1124 int has_error; | |
| 1125 int idx; | |
| 1126 int top; | |
| 1127 int txt_start; | |
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1128 off_T size; |
| 7 | 1129 int called_from_main; |
| 1130 int serious_error = TRUE; | |
| 1131 long mtime; | |
| 1132 int attr; | |
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1133 int orig_file_status = NOTDONE; |
| 7 | 1134 |
| 1135 recoverymode = TRUE; | |
| 1136 called_from_main = (curbuf->b_ml.ml_mfp == NULL); | |
|
11158
501f46f7644c
patch 8.0.0466: still macros that should be all-caps
Christian Brabandt <cb@256bit.org>
parents:
11127
diff
changeset
|
1137 attr = HL_ATTR(HLF_E); |
| 1975 | 1138 |
| 1139 /* | |
|
12975
e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1140 * If the file name ends in ".s[a-w][a-z]" we assume this is the swap file. |
| 1975 | 1141 * Otherwise a search is done to find the swap file(s). |
| 1142 */ | |
| 7 | 1143 fname = curbuf->b_fname; |
| 1144 if (fname == NULL) /* When there is no file name */ | |
| 1145 fname = (char_u *)""; | |
| 1146 len = (int)STRLEN(fname); | |
| 1147 if (len >= 4 && | |
| 2823 | 1148 #if defined(VMS) |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1149 STRNICMP(fname + len - 4, "_s", 2) |
| 7 | 1150 #else |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1151 STRNICMP(fname + len - 4, ".s", 2) |
| 7 | 1152 #endif |
|
10889
5780bd3a5a7e
patch 8.0.0334: can't access b:changedtick from a dict reference
Christian Brabandt <cb@256bit.org>
parents:
10575
diff
changeset
|
1153 == 0 |
|
12975
e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1154 && vim_strchr((char_u *)"abcdefghijklmnopqrstuvw", |
|
e311187347c1
patch 8.0.1363: recovering does not work when swap file ends in .stz
Christian Brabandt <cb@256bit.org>
parents:
12477
diff
changeset
|
1155 TOLOWER_ASC(fname[len - 2])) != NULL |
| 1975 | 1156 && ASCII_ISALPHA(fname[len - 1])) |
| 7 | 1157 { |
| 1158 directly = TRUE; | |
| 2267 | 1159 fname_used = vim_strsave(fname); /* make a copy for mf_open() */ |
| 7 | 1160 } |
| 1161 else | |
| 1162 { | |
| 1163 directly = FALSE; | |
| 1164 | |
| 1165 /* count the number of matching swap files */ | |
| 2267 | 1166 len = recover_names(fname, FALSE, 0, NULL); |
| 7 | 1167 if (len == 0) /* no swap files found */ |
| 1168 { | |
| 1169 EMSG2(_("E305: No swap file found for %s"), fname); | |
| 1170 goto theend; | |
| 1171 } | |
| 1172 if (len == 1) /* one swap file found, use it */ | |
| 1173 i = 1; | |
| 1174 else /* several swap files found, choose */ | |
| 1175 { | |
| 1176 /* list the names of the swap files */ | |
| 2267 | 1177 (void)recover_names(fname, TRUE, 0, NULL); |
| 7 | 1178 msg_putchar('\n'); |
| 1179 MSG_PUTS(_("Enter number of swap file to use (0 to quit): ")); | |
| 374 | 1180 i = get_number(FALSE, NULL); |
| 7 | 1181 if (i < 1 || i > len) |
| 1182 goto theend; | |
| 1183 } | |
| 1184 /* get the swap file name that will be used */ | |
| 2267 | 1185 (void)recover_names(fname, FALSE, i, &fname_used); |
| 7 | 1186 } |
| 2267 | 1187 if (fname_used == NULL) |
| 7 | 1188 goto theend; /* out of memory */ |
| 1189 | |
| 1190 /* When called from main() still need to initialize storage structure */ | |
| 625 | 1191 if (called_from_main && ml_open(curbuf) == FAIL) |
| 7 | 1192 getout(1); |
| 1193 | |
| 2267 | 1194 /* |
| 1195 * Allocate a buffer structure for the swap file that is used for recovery. | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1196 * Only the memline and crypt information in it are really used. |
| 2267 | 1197 */ |
| 7 | 1198 buf = (buf_T *)alloc((unsigned)sizeof(buf_T)); |
| 1199 if (buf == NULL) | |
| 1200 goto theend; | |
| 2267 | 1201 |
| 1202 /* | |
| 1203 * init fields in memline struct | |
| 1204 */ | |
| 7 | 1205 buf->b_ml.ml_stack_size = 0; /* no stack yet */ |
| 1206 buf->b_ml.ml_stack = NULL; /* no stack yet */ | |
| 1207 buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ | |
| 1208 buf->b_ml.ml_line_lnum = 0; /* no cached line */ | |
| 1209 buf->b_ml.ml_locked = NULL; /* no locked block */ | |
| 1210 buf->b_ml.ml_flags = 0; | |
|
2408
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1211 #ifdef FEAT_CRYPT |
|
9e2e63af1641
Better fix for memory access in recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2407
diff
changeset
|
1212 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
|
1213 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
|
1214 #endif |
| 7 | 1215 |
| 2267 | 1216 /* |
| 1217 * open the memfile from the old swap file | |
| 1218 */ | |
| 1219 p = vim_strsave(fname_used); /* save "fname_used" for the message: | |
| 1220 mf_open() will consume "fname_used"! */ | |
| 1221 mfp = mf_open(fname_used, O_RDONLY); | |
| 1222 fname_used = p; | |
| 7 | 1223 if (mfp == NULL || mfp->mf_fd < 0) |
| 1224 { | |
| 2267 | 1225 if (fname_used != NULL) |
| 1226 EMSG2(_("E306: Cannot open %s"), fname_used); | |
| 7 | 1227 goto theend; |
| 1228 } | |
| 1229 buf->b_ml.ml_mfp = mfp; | |
| 2267 | 1230 #ifdef FEAT_CRYPT |
| 1231 mfp->mf_buffer = buf; | |
| 1232 #endif | |
| 7 | 1233 |
| 1234 /* | |
| 1235 * The page size set in mf_open() might be different from the page size | |
| 1236 * used in the swap file, we must get it from block 0. But to read block | |
| 1237 * 0 we need a page size. Use the minimal size for block 0 here, it will | |
| 1238 * be set to the real value below. | |
| 1239 */ | |
| 1240 mfp->mf_page_size = MIN_SWAP_PAGE_SIZE; | |
| 1241 | |
| 2267 | 1242 /* |
| 1243 * try to read block 0 | |
| 1244 */ | |
| 7 | 1245 if ((hp = mf_get(mfp, (blocknr_T)0, 1)) == NULL) |
| 1246 { | |
| 1247 msg_start(); | |
| 1248 MSG_PUTS_ATTR(_("Unable to read block 0 from "), attr | MSG_HIST); | |
| 1249 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 2267 | 1250 MSG_PUTS_ATTR(_("\nMaybe no changes were made or Vim did not update the swap file."), |
| 7 | 1251 attr | MSG_HIST); |
| 1252 msg_end(); | |
| 1253 goto theend; | |
| 1254 } | |
| 1255 b0p = (ZERO_BL *)(hp->bh_data); | |
| 1256 if (STRNCMP(b0p->b0_version, "VIM 3.0", 7) == 0) | |
| 1257 { | |
| 1258 msg_start(); | |
| 1259 msg_outtrans_attr(mfp->mf_fname, MSG_HIST); | |
| 1260 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1261 MSG_HIST); | |
| 1262 MSG_PUTS_ATTR(_("Use Vim version 3.0.\n"), MSG_HIST); | |
| 1263 msg_end(); | |
| 1264 goto theend; | |
| 1265 } | |
| 2267 | 1266 if (ml_check_b0_id(b0p) == FAIL) |
| 7 | 1267 { |
| 1268 EMSG2(_("E307: %s does not look like a Vim swap file"), mfp->mf_fname); | |
| 1269 goto theend; | |
| 1270 } | |
| 1271 if (b0_magic_wrong(b0p)) | |
| 1272 { | |
| 1273 msg_start(); | |
| 1274 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
|
1275 #if defined(MSWIN) |
| 7 | 1276 if (STRNCMP(b0p->b0_hname, "PC ", 3) == 0) |
| 1277 MSG_PUTS_ATTR(_(" cannot be used with this version of Vim.\n"), | |
| 1278 attr | MSG_HIST); | |
| 1279 else | |
| 1280 #endif | |
| 1281 MSG_PUTS_ATTR(_(" cannot be used on this computer.\n"), | |
| 1282 attr | MSG_HIST); | |
| 1283 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
|
1284 /* avoid going past the end of a corrupted hostname */ |
| 7 | 1285 b0p->b0_fname[0] = NUL; |
| 1286 MSG_PUTS_ATTR(b0p->b0_hname, attr | MSG_HIST); | |
| 1287 MSG_PUTS_ATTR(_(",\nor the file has been damaged."), attr | MSG_HIST); | |
| 1288 msg_end(); | |
| 1289 goto theend; | |
| 1290 } | |
| 1105 | 1291 |
| 2267 | 1292 #ifdef FEAT_CRYPT |
| 6122 | 1293 for (i = 0; i < (int)(sizeof(id1_codes) / sizeof(int)); ++i) |
| 1294 if (id1_codes[i] == b0p->b0_id[1]) | |
| 1295 b0_cm = i; | |
| 1296 if (b0_cm > 0) | |
| 2267 | 1297 mch_memmove(mfp->mf_seed, &b0p->b0_seed, MF_SEED_LEN); |
| 6122 | 1298 crypt_set_cm_option(buf, b0_cm < 0 ? 0 : b0_cm); |
| 2267 | 1299 #else |
| 1300 if (b0p->b0_id[1] != BLOCK0_ID1) | |
| 1301 { | |
|
2283
7e1bd501306d
Mainly documentation updates.
Bram Moolenaar <bram@vim.org>
parents:
2273
diff
changeset
|
1302 EMSG2(_("E833: %s is encrypted and this version of Vim does not support encryption"), mfp->mf_fname); |
| 2267 | 1303 goto theend; |
| 1304 } | |
| 1305 #endif | |
| 1306 | |
| 7 | 1307 /* |
| 1308 * If we guessed the wrong page size, we have to recalculate the | |
| 1309 * highest block number in the file. | |
| 1310 */ | |
| 1311 if (mfp->mf_page_size != (unsigned)char_to_long(b0p->b0_page_size)) | |
| 1312 { | |
| 1105 | 1313 unsigned previous_page_size = mfp->mf_page_size; |
| 1314 | |
| 7 | 1315 mf_new_page_size(mfp, (unsigned)char_to_long(b0p->b0_page_size)); |
| 1105 | 1316 if (mfp->mf_page_size < previous_page_size) |
| 1317 { | |
| 1318 msg_start(); | |
| 1319 msg_outtrans_attr(mfp->mf_fname, attr | MSG_HIST); | |
| 1320 MSG_PUTS_ATTR(_(" has been damaged (page size is smaller than minimum value).\n"), | |
| 1321 attr | MSG_HIST); | |
| 1322 msg_end(); | |
| 1323 goto theend; | |
| 1324 } | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
1325 if ((size = vim_lseek(mfp->mf_fd, (off_T)0L, SEEK_END)) <= 0) |
| 7 | 1326 mfp->mf_blocknr_max = 0; /* no file or empty file */ |
| 1327 else | |
| 1328 mfp->mf_blocknr_max = (blocknr_T)(size / mfp->mf_page_size); | |
| 1329 mfp->mf_infile_count = mfp->mf_blocknr_max; | |
| 1105 | 1330 |
| 1331 /* need to reallocate the memory used to store the data */ | |
| 1332 p = alloc(mfp->mf_page_size); | |
| 1333 if (p == NULL) | |
| 1334 goto theend; | |
| 1335 mch_memmove(p, hp->bh_data, previous_page_size); | |
| 1336 vim_free(hp->bh_data); | |
| 1337 hp->bh_data = p; | |
| 1338 b0p = (ZERO_BL *)(hp->bh_data); | |
| 7 | 1339 } |
| 1340 | |
| 2267 | 1341 /* |
| 1342 * If .swp file name given directly, use name from swap file for buffer. | |
| 1343 */ | |
| 7 | 1344 if (directly) |
| 1345 { | |
| 1346 expand_env(b0p->b0_fname, NameBuff, MAXPATHL); | |
| 1347 if (setfname(curbuf, NameBuff, NULL, TRUE) == FAIL) | |
| 1348 goto theend; | |
| 1349 } | |
| 1350 | |
| 1351 home_replace(NULL, mfp->mf_fname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1352 smsg((char_u *)_("Using swap file \"%s\""), NameBuff); |
| 7 | 1353 |
| 1354 if (buf_spname(curbuf) != NULL) | |
| 3839 | 1355 vim_strncpy(NameBuff, buf_spname(curbuf), MAXPATHL - 1); |
| 7 | 1356 else |
| 1357 home_replace(NULL, curbuf->b_ffname, NameBuff, MAXPATHL, TRUE); | |
| 274 | 1358 smsg((char_u *)_("Original file \"%s\""), NameBuff); |
| 7 | 1359 msg_putchar('\n'); |
| 1360 | |
| 2267 | 1361 /* |
| 1362 * check date of swap file and original file | |
| 1363 */ | |
| 7 | 1364 mtime = char_to_long(b0p->b0_mtime); |
| 1365 if (curbuf->b_ffname != NULL | |
| 1366 && mch_stat((char *)curbuf->b_ffname, &org_stat) != -1 | |
| 1367 && ((mch_stat((char *)mfp->mf_fname, &swp_stat) != -1 | |
| 1368 && org_stat.st_mtime > swp_stat.st_mtime) | |
| 1369 || org_stat.st_mtime != mtime)) | |
| 1370 { | |
| 1371 EMSG(_("E308: Warning: Original file may have been changed")); | |
| 1372 } | |
| 1373 out_flush(); | |
| 39 | 1374 |
| 1375 /* Get the 'fileformat' and 'fileencoding' from block zero. */ | |
| 1376 b0_ff = (b0p->b0_flags & B0_FF_MASK); | |
| 1377 if (b0p->b0_flags & B0_HAS_FENC) | |
| 1378 { | |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1379 int fnsize = B0_FNAME_SIZE_NOCRYPT; |
| 2267 | 1380 |
| 1381 #ifdef FEAT_CRYPT | |
| 1382 /* Use the same size as in add_b0_fenc(). */ | |
| 1383 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
|
1384 fnsize = B0_FNAME_SIZE_CRYPT; |
| 2267 | 1385 #endif |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1386 for (p = b0p->b0_fname + fnsize; p > b0p->b0_fname && p[-1] != NUL; --p) |
| 39 | 1387 ; |
|
2271
2b33a7678e7b
Fix compiler warnings for shadowed variables. Make 'conceal' a long instead
Bram Moolenaar <bram@vim.org>
parents:
2267
diff
changeset
|
1388 b0_fenc = vim_strnsave(p, (int)(b0p->b0_fname + fnsize - p)); |
| 39 | 1389 } |
| 1390 | |
| 7 | 1391 mf_put(mfp, hp, FALSE, FALSE); /* release block 0 */ |
| 1392 hp = NULL; | |
| 1393 | |
| 1394 /* | |
| 1395 * Now that we are sure that the file is going to be recovered, clear the | |
| 1396 * contents of the current buffer. | |
| 1397 */ | |
| 1398 while (!(curbuf->b_ml.ml_flags & ML_EMPTY)) | |
| 1399 ml_delete((linenr_T)1, FALSE); | |
| 1400 | |
| 1401 /* | |
| 1402 * Try reading the original file to obtain the values of 'fileformat', | |
| 1403 * 'fileencoding', etc. Ignore errors. The text itself is not used. | |
| 2267 | 1404 * When the file is encrypted the user is asked to enter the key. |
| 7 | 1405 */ |
| 1406 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
|
1407 orig_file_status = readfile(curbuf->b_ffname, NULL, (linenr_T)0, |
| 7 | 1408 (linenr_T)0, (linenr_T)MAXLNUM, NULL, READ_NEW); |
| 1409 | |
| 2267 | 1410 #ifdef FEAT_CRYPT |
| 1411 if (b0_cm >= 0) | |
| 1412 { | |
| 1413 /* Need to ask the user for the crypt key. If this fails we continue | |
| 1414 * without a key, will probably get garbage text. */ | |
| 1415 if (*curbuf->b_p_key != NUL) | |
| 1416 { | |
| 1417 smsg((char_u *)_("Swap file is encrypted: \"%s\""), fname_used); | |
| 1418 MSG_PUTS(_("\nIf you entered a new crypt key but did not write the text file,")); | |
| 1419 MSG_PUTS(_("\nenter the new crypt key.")); | |
| 1420 MSG_PUTS(_("\nIf you wrote the text file after changing the crypt key press enter")); | |
| 1421 MSG_PUTS(_("\nto use the same key for text file and swap file")); | |
| 1422 } | |
| 1423 else | |
| 1424 smsg((char_u *)_(need_key_msg), fname_used); | |
| 6122 | 1425 buf->b_p_key = crypt_get_key(FALSE, FALSE); |
| 2267 | 1426 if (buf->b_p_key == NULL) |
| 1427 buf->b_p_key = curbuf->b_p_key; | |
| 1428 else if (*buf->b_p_key == NUL) | |
| 1429 { | |
| 1430 vim_free(buf->b_p_key); | |
| 1431 buf->b_p_key = curbuf->b_p_key; | |
| 1432 } | |
| 1433 if (buf->b_p_key == NULL) | |
| 1434 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
|
1435 } |
| 2267 | 1436 #endif |
| 7 | 1437 |
| 39 | 1438 /* Use the 'fileformat' and 'fileencoding' as stored in the swap file. */ |
| 1439 if (b0_ff != 0) | |
| 1440 set_fileformat(b0_ff - 1, OPT_LOCAL); | |
| 1441 if (b0_fenc != NULL) | |
| 1442 { | |
| 1443 set_option_value((char_u *)"fenc", 0L, b0_fenc, OPT_LOCAL); | |
| 1444 vim_free(b0_fenc); | |
| 1445 } | |
| 1446 unchanged(curbuf, TRUE); | |
| 1447 | |
| 7 | 1448 bnum = 1; /* start with block 1 */ |
| 1449 page_count = 1; /* which is 1 page */ | |
| 1450 lnum = 0; /* append after line 0 in curbuf */ | |
| 1451 line_count = 0; | |
| 1452 idx = 0; /* start with first index in block 1 */ | |
| 1453 error = 0; | |
| 1454 buf->b_ml.ml_stack_top = 0; | |
| 1455 buf->b_ml.ml_stack = NULL; | |
| 1456 buf->b_ml.ml_stack_size = 0; /* no stack yet */ | |
| 1457 | |
| 1458 if (curbuf->b_ffname == NULL) | |
| 1459 cannot_open = TRUE; | |
| 1460 else | |
| 1461 cannot_open = FALSE; | |
| 1462 | |
| 1463 serious_error = FALSE; | |
| 1464 for ( ; !got_int; line_breakcheck()) | |
| 1465 { | |
| 1466 if (hp != NULL) | |
| 1467 mf_put(mfp, hp, FALSE, FALSE); /* release previous block */ | |
| 1468 | |
| 1469 /* | |
| 1470 * get block | |
| 1471 */ | |
| 1472 if ((hp = mf_get(mfp, (blocknr_T)bnum, page_count)) == NULL) | |
| 1473 { | |
| 1474 if (bnum == 1) | |
| 1475 { | |
| 1476 EMSG2(_("E309: Unable to read block 1 from %s"), mfp->mf_fname); | |
| 1477 goto theend; | |
| 1478 } | |
| 1479 ++error; | |
| 1480 ml_append(lnum++, (char_u *)_("???MANY LINES MISSING"), | |
| 1481 (colnr_T)0, TRUE); | |
| 1482 } | |
| 1483 else /* there is a block */ | |
| 1484 { | |
| 1485 pp = (PTR_BL *)(hp->bh_data); | |
| 1486 if (pp->pb_id == PTR_ID) /* it is a pointer block */ | |
| 1487 { | |
| 1488 /* check line count when using pointer block first time */ | |
| 1489 if (idx == 0 && line_count != 0) | |
| 1490 { | |
| 1491 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 1492 line_count -= pp->pb_pointer[i].pe_line_count; | |
| 1493 if (line_count != 0) | |
| 1494 { | |
| 1495 ++error; | |
| 1496 ml_append(lnum++, (char_u *)_("???LINE COUNT WRONG"), | |
| 1497 (colnr_T)0, TRUE); | |
| 1498 } | |
| 1499 } | |
| 1500 | |
| 1501 if (pp->pb_count == 0) | |
| 1502 { | |
| 1503 ml_append(lnum++, (char_u *)_("???EMPTY BLOCK"), | |
| 1504 (colnr_T)0, TRUE); | |
| 1505 ++error; | |
| 1506 } | |
| 1507 else if (idx < (int)pp->pb_count) /* go a block deeper */ | |
| 1508 { | |
| 1509 if (pp->pb_pointer[idx].pe_bnum < 0) | |
| 1510 { | |
| 1511 /* | |
| 1512 * Data block with negative block number. | |
| 1513 * Try to read lines from the original file. | |
| 1514 * This is slow, but it works. | |
| 1515 */ | |
| 1516 if (!cannot_open) | |
| 1517 { | |
| 1518 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1519 if (readfile(curbuf->b_ffname, NULL, lnum, | |
| 1520 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
|
1521 line_count, NULL, 0) != OK) |
| 7 | 1522 cannot_open = TRUE; |
| 1523 else | |
| 1524 lnum += line_count; | |
| 1525 } | |
| 1526 if (cannot_open) | |
| 1527 { | |
| 1528 ++error; | |
| 1529 ml_append(lnum++, (char_u *)_("???LINES MISSING"), | |
| 1530 (colnr_T)0, TRUE); | |
| 1531 } | |
| 1532 ++idx; /* get same block again for next index */ | |
| 1533 continue; | |
| 1534 } | |
| 1535 | |
| 1536 /* | |
| 1537 * going one block deeper in the tree | |
| 1538 */ | |
| 1539 if ((top = ml_add_stack(buf)) < 0) /* new entry in stack */ | |
| 1540 { | |
| 1541 ++error; | |
| 1542 break; /* out of memory */ | |
| 1543 } | |
| 1544 ip = &(buf->b_ml.ml_stack[top]); | |
| 1545 ip->ip_bnum = bnum; | |
| 1546 ip->ip_index = idx; | |
| 1547 | |
| 1548 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 1549 line_count = pp->pb_pointer[idx].pe_line_count; | |
| 1550 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 2885 | 1551 idx = 0; |
| 7 | 1552 continue; |
| 1553 } | |
| 1554 } | |
| 1555 else /* not a pointer block */ | |
| 1556 { | |
| 1557 dp = (DATA_BL *)(hp->bh_data); | |
| 1558 if (dp->db_id != DATA_ID) /* block id wrong */ | |
| 1559 { | |
| 1560 if (bnum == 1) | |
| 1561 { | |
| 1562 EMSG2(_("E310: Block 1 ID wrong (%s not a .swp file?)"), | |
| 1563 mfp->mf_fname); | |
| 1564 goto theend; | |
| 1565 } | |
| 1566 ++error; | |
| 1567 ml_append(lnum++, (char_u *)_("???BLOCK MISSING"), | |
| 1568 (colnr_T)0, TRUE); | |
| 1569 } | |
| 1570 else | |
| 1571 { | |
| 1572 /* | |
| 1573 * it is a data block | |
| 1574 * Append all the lines in this block | |
| 1575 */ | |
| 1576 has_error = FALSE; | |
| 1577 /* | |
| 1578 * check length of block | |
| 1579 * if wrong, use length in pointer block | |
| 1580 */ | |
| 1581 if (page_count * mfp->mf_page_size != dp->db_txt_end) | |
| 1582 { | |
| 1583 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may be messed up"), | |
| 1584 (colnr_T)0, TRUE); | |
| 1585 ++error; | |
| 1586 has_error = TRUE; | |
| 1587 dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 1588 } | |
| 1589 | |
| 1590 /* make sure there is a NUL at the end of the block */ | |
| 1591 *((char_u *)dp + dp->db_txt_end - 1) = NUL; | |
| 1592 | |
| 1593 /* | |
| 1594 * check number of lines in block | |
| 1595 * if wrong, use count in data block | |
| 1596 */ | |
| 1597 if (line_count != dp->db_line_count) | |
| 1598 { | |
| 1599 ml_append(lnum++, (char_u *)_("??? from here until ???END lines may have been inserted/deleted"), | |
| 1600 (colnr_T)0, TRUE); | |
| 1601 ++error; | |
| 1602 has_error = TRUE; | |
| 1603 } | |
| 1604 | |
| 1605 for (i = 0; i < dp->db_line_count; ++i) | |
| 1606 { | |
| 1607 txt_start = (dp->db_index[i] & DB_INDEX_MASK); | |
| 1978 | 1608 if (txt_start <= (int)HEADER_SIZE |
| 7 | 1609 || txt_start >= (int)dp->db_txt_end) |
| 1610 { | |
| 1611 p = (char_u *)"???"; | |
| 1612 ++error; | |
| 1613 } | |
| 1614 else | |
| 1615 p = (char_u *)dp + txt_start; | |
| 1616 ml_append(lnum++, p, (colnr_T)0, TRUE); | |
| 1617 } | |
| 1618 if (has_error) | |
| 1978 | 1619 ml_append(lnum++, (char_u *)_("???END"), |
| 1620 (colnr_T)0, TRUE); | |
| 7 | 1621 } |
| 1622 } | |
| 1623 } | |
| 1624 | |
| 1625 if (buf->b_ml.ml_stack_top == 0) /* finished */ | |
| 1626 break; | |
| 1627 | |
| 1628 /* | |
| 1629 * go one block up in the tree | |
| 1630 */ | |
| 1631 ip = &(buf->b_ml.ml_stack[--(buf->b_ml.ml_stack_top)]); | |
| 1632 bnum = ip->ip_bnum; | |
| 1633 idx = ip->ip_index + 1; /* go to next index */ | |
| 1634 page_count = 1; | |
| 1635 } | |
| 1636 | |
| 1637 /* | |
|
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
|
1638 * 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
|
1639 * 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
|
1640 * 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
|
1641 * 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
|
1642 * Line ml_line_count + 1 in the dummy empty line. |
| 7 | 1643 */ |
|
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
|
1644 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:
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diff
changeset
|
1645 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1646 /* Recovering an empty file results in two lines and the first line is |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1647 * empty. Don't set the modified flag then. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1648 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
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1649 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1650 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1651 ++CHANGEDTICK(curbuf); |
|
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
|
1652 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1653 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1654 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1655 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1656 for (idx = 1; idx <= lnum; ++idx) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1657 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
2145
diff
changeset
|
1658 /* Need to copy one line, fetching the other one may flush it. */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
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diff
changeset
|
1659 p = vim_strsave(ml_get(idx)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
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parents:
2145
diff
changeset
|
1660 i = STRCMP(p, ml_get(idx + lnum)); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1661 vim_free(p); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1662 if (i != 0) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1663 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1664 changed_int(); |
|
10952
835604f3c37a
patch 8.0.0365: might free a dict item that wasn't allocated
Christian Brabandt <cb@256bit.org>
parents:
10896
diff
changeset
|
1665 ++CHANGEDTICK(curbuf); |
|
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
|
1666 break; |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1667 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1668 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1669 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
1670 |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1671 /* |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1672 * Delete the lines from the original file and the dummy line from the |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1673 * empty buffer. These will now be after the last line in the buffer. |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1674 */ |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1675 while (curbuf->b_ml.ml_line_count > lnum |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1676 && !(curbuf->b_ml.ml_flags & ML_EMPTY)) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1677 ml_delete(curbuf->b_ml.ml_line_count, FALSE); |
| 7 | 1678 curbuf->b_flags |= BF_RECOVERED; |
| 1679 | |
| 1680 recoverymode = FALSE; | |
| 1681 if (got_int) | |
| 1682 EMSG(_("E311: Recovery Interrupted")); | |
| 1683 else if (error) | |
| 1684 { | |
| 1685 ++no_wait_return; | |
| 1686 MSG(">>>>>>>>>>>>>"); | |
| 1687 EMSG(_("E312: Errors detected while recovering; look for lines starting with ???")); | |
| 1688 --no_wait_return; | |
| 1689 MSG(_("See \":help E312\" for more information.")); | |
| 1690 MSG(">>>>>>>>>>>>>"); | |
| 1691 } | |
| 1692 else | |
| 1693 { | |
|
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
|
1694 if (curbuf->b_changed) |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1695 { |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1696 MSG(_("Recovery completed. You should check if everything is OK.")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1697 MSG_PUTS(_("\n(You might want to write out this file under another name\n")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1698 MSG_PUTS(_("and run diff with the original file to check for changes)")); |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1699 } |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1700 else |
|
0527eb0f6918
After recovery check if the text changed. If it did mark the buffer as
Bram Moolenaar <bram@vim.org>
parents:
2145
diff
changeset
|
1701 MSG(_("Recovery completed. Buffer contents equals file 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
|
1702 MSG_PUTS(_("\nYou may want to delete the .swp file now.\n\n")); |
| 7 | 1703 cmdline_row = msg_row; |
| 1704 } | |
| 2267 | 1705 #ifdef FEAT_CRYPT |
| 1706 if (*buf->b_p_key != NUL && STRCMP(curbuf->b_p_key, buf->b_p_key) != 0) | |
| 1707 { | |
| 1708 MSG_PUTS(_("Using crypt key from swap file for the text file.\n")); | |
| 1709 set_option_value((char_u *)"key", 0L, buf->b_p_key, OPT_LOCAL); | |
| 1710 } | |
| 1711 #endif | |
| 7 | 1712 redraw_curbuf_later(NOT_VALID); |
| 1713 | |
| 1714 theend: | |
| 2267 | 1715 vim_free(fname_used); |
| 7 | 1716 recoverymode = FALSE; |
| 1717 if (mfp != NULL) | |
| 1718 { | |
| 1719 if (hp != NULL) | |
| 1720 mf_put(mfp, hp, FALSE, FALSE); | |
| 1721 mf_close(mfp, FALSE); /* will also vim_free(mfp->mf_fname) */ | |
| 1722 } | |
| 1053 | 1723 if (buf != NULL) |
| 1724 { | |
| 2267 | 1725 #ifdef FEAT_CRYPT |
| 1726 if (buf->b_p_key != curbuf->b_p_key) | |
| 1727 free_string_option(buf->b_p_key); | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
1728 free_string_option(buf->b_p_cm); |
| 2267 | 1729 #endif |
| 1053 | 1730 vim_free(buf->b_ml.ml_stack); |
| 1731 vim_free(buf); | |
| 1732 } | |
| 7 | 1733 if (serious_error && called_from_main) |
| 1734 ml_close(curbuf, TRUE); | |
| 1735 else | |
| 1736 { | |
| 1737 apply_autocmds(EVENT_BUFREADPOST, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1738 apply_autocmds(EVENT_BUFWINENTER, NULL, curbuf->b_fname, FALSE, curbuf); | |
| 1739 } | |
| 1740 return; | |
| 1741 } | |
| 1742 | |
| 1743 /* | |
| 1744 * Find the names of swap files in current directory and the directory given | |
| 1745 * with the 'directory' option. | |
| 1746 * | |
| 1747 * Used to: | |
| 1748 * - list the swap files for "vim -r" | |
| 1749 * - count the number of swap files when recovering | |
| 1750 * - list the swap files when recovering | |
| 1751 * - find the name of the n'th swap file when recovering | |
| 1752 */ | |
| 1753 int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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diff
changeset
|
1754 recover_names( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1755 char_u *fname, /* base for swap file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1756 int list, /* when TRUE, list the swap file names */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1757 int nr, /* when non-zero, return nr'th swap file name */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1758 char_u **fname_out) /* result when "nr" > 0 */ |
| 7 | 1759 { |
| 1760 int num_names; | |
| 1761 char_u *(names[6]); | |
| 1762 char_u *tail; | |
| 1763 char_u *p; | |
| 1764 int num_files; | |
| 1765 int file_count = 0; | |
| 1766 char_u **files; | |
| 1767 int i; | |
| 1768 char_u *dirp; | |
| 1769 char_u *dir_name; | |
| 2175 | 1770 char_u *fname_res = NULL; |
|
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diff
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|
1771 #ifdef HAVE_READLINK |
|
de0e7ca61893
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diff
changeset
|
1772 char_u fname_buf[MAXPATHL]; |
| 2175 | 1773 #endif |
| 1774 | |
| 1775 if (fname != NULL) | |
| 1776 { | |
| 1777 #ifdef HAVE_READLINK | |
| 2267 | 1778 /* Expand symlink in the file name, because the swap file is created |
| 1779 * with the actual file instead of with the symlink. */ | |
| 1780 if (resolve_symlink(fname, fname_buf) == OK) | |
| 1781 fname_res = fname_buf; | |
| 1782 else | |
|
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diff
changeset
|
1783 #endif |
| 2267 | 1784 fname_res = fname; |
| 2175 | 1785 } |
| 7 | 1786 |
| 1787 if (list) | |
| 1788 { | |
|
2145
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diff
changeset
|
1789 /* use msg() to start the scrolling properly */ |
| 7 | 1790 msg((char_u *)_("Swap files found:")); |
| 1791 msg_putchar('\n'); | |
| 1792 } | |
| 1793 | |
| 1794 /* | |
| 1795 * Do the loop for every directory in 'directory'. | |
| 1796 * First allocate some memory to put the directory name in. | |
| 1797 */ | |
| 1798 dir_name = alloc((unsigned)STRLEN(p_dir) + 1); | |
| 1799 dirp = p_dir; | |
| 1800 while (dir_name != NULL && *dirp) | |
| 1801 { | |
| 1802 /* | |
| 1803 * Isolate a directory name from *dirp and put it in dir_name (we know | |
| 1804 * it is large enough, so use 31000 for length). | |
| 1805 * Advance dirp to next directory name. | |
| 1806 */ | |
| 1807 (void)copy_option_part(&dirp, dir_name, 31000, ","); | |
| 1808 | |
| 1809 if (dir_name[0] == '.' && dir_name[1] == NUL) /* check current dir */ | |
| 1810 { | |
| 2267 | 1811 if (fname == NULL) |
| 7 | 1812 { |
| 1813 #ifdef VMS | |
| 1814 names[0] = vim_strsave((char_u *)"*_sw%"); | |
| 1815 #else | |
| 1816 names[0] = vim_strsave((char_u *)"*.sw?"); | |
| 1817 #endif | |
| 1005 | 1818 #if defined(UNIX) || defined(WIN3264) |
| 1819 /* For Unix names starting with a dot are special. MS-Windows | |
| 1820 * supports this too, on some file systems. */ | |
| 7 | 1821 names[1] = vim_strsave((char_u *)".*.sw?"); |
| 1822 names[2] = vim_strsave((char_u *)".sw?"); | |
| 1823 num_names = 3; | |
| 1824 #else | |
| 1825 # ifdef VMS | |
| 1826 names[1] = vim_strsave((char_u *)".*_sw%"); | |
| 1827 num_names = 2; | |
| 1828 # else | |
| 1829 num_names = 1; | |
| 1830 # endif | |
| 1831 #endif | |
| 1832 } | |
| 1833 else | |
|
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1834 num_names = recov_file_names(names, fname_res, TRUE); |
| 7 | 1835 } |
| 1836 else /* check directory dir_name */ | |
| 1837 { | |
| 2267 | 1838 if (fname == NULL) |
| 7 | 1839 { |
| 1840 #ifdef VMS | |
| 1841 names[0] = concat_fnames(dir_name, (char_u *)"*_sw%", TRUE); | |
| 1842 #else | |
| 1843 names[0] = concat_fnames(dir_name, (char_u *)"*.sw?", TRUE); | |
| 1844 #endif | |
| 1005 | 1845 #if defined(UNIX) || defined(WIN3264) |
| 1846 /* For Unix names starting with a dot are special. MS-Windows | |
| 1847 * supports this too, on some file systems. */ | |
| 7 | 1848 names[1] = concat_fnames(dir_name, (char_u *)".*.sw?", TRUE); |
| 1849 names[2] = concat_fnames(dir_name, (char_u *)".sw?", TRUE); | |
| 1850 num_names = 3; | |
| 1851 #else | |
| 1852 # ifdef VMS | |
| 1853 names[1] = concat_fnames(dir_name, (char_u *)".*_sw%", TRUE); | |
| 1854 num_names = 2; | |
| 1855 # else | |
| 1856 num_names = 1; | |
| 1857 # endif | |
| 1858 #endif | |
| 1859 } | |
| 1860 else | |
| 1861 { | |
| 1862 #if defined(UNIX) || defined(WIN3264) | |
|
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1863 int len = (int)STRLEN(dir_name); |
|
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1864 |
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1865 p = dir_name + len; |
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1866 if (after_pathsep(dir_name, p) && len > 1 && p[-1] == p[-2]) |
| 7 | 1867 { |
| 1868 /* Ends with '//', Use Full path for swap name */ | |
|
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1869 tail = make_percent_swname(dir_name, fname_res); |
| 7 | 1870 } |
| 1871 else | |
| 1872 #endif | |
| 1873 { | |
|
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1874 tail = gettail(fname_res); |
| 7 | 1875 tail = concat_fnames(dir_name, tail, TRUE); |
| 1876 } | |
| 1877 if (tail == NULL) | |
| 1878 num_names = 0; | |
| 1879 else | |
| 1880 { | |
| 1881 num_names = recov_file_names(names, tail, FALSE); | |
| 1882 vim_free(tail); | |
| 1883 } | |
| 1884 } | |
| 1885 } | |
| 1886 | |
| 1887 /* check for out-of-memory */ | |
| 1888 for (i = 0; i < num_names; ++i) | |
| 1889 { | |
| 1890 if (names[i] == NULL) | |
| 1891 { | |
| 1892 for (i = 0; i < num_names; ++i) | |
| 1893 vim_free(names[i]); | |
| 1894 num_names = 0; | |
| 1895 } | |
| 1896 } | |
| 1897 if (num_names == 0) | |
| 1898 num_files = 0; | |
| 1899 else if (expand_wildcards(num_names, names, &num_files, &files, | |
| 1900 EW_KEEPALL|EW_FILE|EW_SILENT) == FAIL) | |
| 1901 num_files = 0; | |
| 1902 | |
| 1903 /* | |
| 1904 * When no swap file found, wildcard expansion might have failed (e.g. | |
| 1905 * not able to execute the shell). | |
| 1906 * Try finding a swap file by simply adding ".swp" to the file name. | |
| 1907 */ | |
| 2267 | 1908 if (*dirp == NUL && file_count + num_files == 0 && fname != NULL) |
| 7 | 1909 { |
|
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|
1910 stat_T st; |
| 7 | 1911 char_u *swapname; |
| 1912 | |
|
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1913 swapname = modname(fname_res, |
| 2823 | 1914 #if defined(VMS) |
|
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1915 (char_u *)"_swp", FALSE |
| 7 | 1916 #else |
|
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1917 (char_u *)".swp", TRUE |
| 7 | 1918 #endif |
|
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1919 ); |
| 7 | 1920 if (swapname != NULL) |
| 1921 { | |
| 1922 if (mch_stat((char *)swapname, &st) != -1) /* It exists! */ | |
| 1923 { | |
| 1924 files = (char_u **)alloc((unsigned)sizeof(char_u *)); | |
| 1925 if (files != NULL) | |
| 1926 { | |
| 1927 files[0] = swapname; | |
| 1928 swapname = NULL; | |
| 1929 num_files = 1; | |
| 1930 } | |
| 1931 } | |
| 1932 vim_free(swapname); | |
| 1933 } | |
| 1934 } | |
| 1935 | |
| 1936 /* | |
| 1937 * remove swapfile name of the current buffer, it must be ignored | |
| 1938 */ | |
| 1939 if (curbuf->b_ml.ml_mfp != NULL | |
| 1940 && (p = curbuf->b_ml.ml_mfp->mf_fname) != NULL) | |
| 1941 { | |
| 1942 for (i = 0; i < num_files; ++i) | |
| 1943 if (fullpathcmp(p, files[i], TRUE) & FPC_SAME) | |
| 1944 { | |
| 1855 | 1945 /* Remove the name from files[i]. Move further entries |
| 1946 * down. When the array becomes empty free it here, since | |
| 1947 * FreeWild() won't be called below. */ | |
| 7 | 1948 vim_free(files[i]); |
| 1855 | 1949 if (--num_files == 0) |
| 1950 vim_free(files); | |
| 1951 else | |
| 1952 for ( ; i < num_files; ++i) | |
| 1953 files[i] = files[i + 1]; | |
| 7 | 1954 } |
| 1955 } | |
| 838 | 1956 if (nr > 0) |
| 7 | 1957 { |
| 1958 file_count += num_files; | |
| 1959 if (nr <= file_count) | |
| 1960 { | |
| 2267 | 1961 *fname_out = vim_strsave( |
| 1962 files[nr - 1 + num_files - file_count]); | |
| 7 | 1963 dirp = (char_u *)""; /* stop searching */ |
| 1964 } | |
| 1965 } | |
| 1966 else if (list) | |
| 1967 { | |
| 1968 if (dir_name[0] == '.' && dir_name[1] == NUL) | |
| 1969 { | |
| 2267 | 1970 if (fname == NULL) |
| 7 | 1971 MSG_PUTS(_(" In current directory:\n")); |
| 1972 else | |
| 1973 MSG_PUTS(_(" Using specified name:\n")); | |
| 1974 } | |
| 1975 else | |
| 1976 { | |
| 1977 MSG_PUTS(_(" In directory ")); | |
| 1978 msg_home_replace(dir_name); | |
| 1979 MSG_PUTS(":\n"); | |
| 1980 } | |
| 1981 | |
| 1982 if (num_files) | |
| 1983 { | |
| 1984 for (i = 0; i < num_files; ++i) | |
| 1985 { | |
| 1986 /* print the swap file name */ | |
| 1987 msg_outnum((long)++file_count); | |
| 1988 MSG_PUTS(". "); | |
| 1989 msg_puts(gettail(files[i])); | |
| 1990 msg_putchar('\n'); | |
| 1991 (void)swapfile_info(files[i]); | |
| 1992 } | |
| 1993 } | |
| 1994 else | |
| 1995 MSG_PUTS(_(" -- none --\n")); | |
| 1996 out_flush(); | |
| 1997 } | |
| 1998 else | |
| 1999 file_count += num_files; | |
| 2000 | |
| 2001 for (i = 0; i < num_names; ++i) | |
| 2002 vim_free(names[i]); | |
| 838 | 2003 if (num_files > 0) |
| 2004 FreeWild(num_files, files); | |
| 7 | 2005 } |
| 2006 vim_free(dir_name); | |
| 2007 return file_count; | |
| 2008 } | |
| 2009 | |
|
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2010 #if defined(UNIX) || defined(WIN3264) || defined(PROTO) |
| 7 | 2011 /* |
|
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|
2012 * Need _very_ long file names. |
| 7 | 2013 * Append the full path to name with path separators made into percent |
| 2014 * signs, to dir. An unnamed buffer is handled as "" (<currentdir>/"") | |
| 2015 */ | |
|
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|
2016 char_u * |
|
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|
2017 make_percent_swname(char_u *dir, char_u *name) |
| 7 | 2018 { |
|
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2019 char_u *d = NULL, *s, *f; |
|
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2020 |
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|
2021 f = fix_fname(name != NULL ? name : (char_u *)""); |
| 7 | 2022 if (f != NULL) |
| 2023 { | |
| 2024 s = alloc((unsigned)(STRLEN(f) + 1)); | |
| 2025 if (s != NULL) | |
| 2026 { | |
| 39 | 2027 STRCPY(s, f); |
|
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|
2028 for (d = s; *d != NUL; MB_PTR_ADV(d)) |
| 39 | 2029 if (vim_ispathsep(*d)) |
| 2030 *d = '%'; | |
| 7 | 2031 d = concat_fnames(dir, s, TRUE); |
| 2032 vim_free(s); | |
| 2033 } | |
| 2034 vim_free(f); | |
| 2035 } | |
| 2036 return d; | |
| 2037 } | |
| 2038 #endif | |
| 2039 | |
|
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changeset
|
2040 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 2041 static int process_still_running; |
| 2042 #endif | |
| 2043 | |
|
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|
2044 #if defined(FEAT_EVAL) || defined(PROTO) |
| 7 | 2045 /* |
|
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2046 * Return information found in swapfile "fname" in dictionary "d". |
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2047 * This is used by the swapinfo() function. |
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2048 */ |
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2049 void |
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2050 get_b0_dict(char_u *fname, dict_T *d) |
|
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2051 { |
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2052 int fd; |
|
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2053 struct block0 b0; |
|
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2054 |
|
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2055 if ((fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0)) >= 0) |
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2056 { |
|
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2057 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
|
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2058 { |
|
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2059 if (ml_check_b0_id(&b0) == FAIL) |
|
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2060 dict_add_string(d, "error", |
|
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2061 vim_strsave((char_u *)"Not a swap file")); |
|
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2062 else if (b0_magic_wrong(&b0)) |
|
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2063 dict_add_string(d, "error", |
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2064 vim_strsave((char_u *)"Magic number mismatch")); |
|
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2065 else |
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2066 { |
|
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2067 /* we have swap information */ |
|
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2068 dict_add_string(d, "version", vim_strnsave(b0.b0_version, 10)); |
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2069 dict_add_string(d, "user", |
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2070 vim_strnsave(b0.b0_uname, B0_UNAME_SIZE)); |
|
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2071 dict_add_string(d, "host", |
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2072 vim_strnsave(b0.b0_hname, B0_HNAME_SIZE)); |
|
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2073 dict_add_string(d, "fname", |
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2074 vim_strnsave(b0.b0_fname, B0_FNAME_SIZE_ORG)); |
|
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2075 |
|
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2076 dict_add_number(d, "pid", char_to_long(b0.b0_pid)); |
|
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2077 dict_add_number(d, "mtime", char_to_long(b0.b0_mtime)); |
|
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2078 dict_add_number(d, "dirty", b0.b0_dirty ? 1 : 0); |
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2079 # ifdef CHECK_INODE |
|
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2080 dict_add_number(d, "inode", char_to_long(b0.b0_ino)); |
|
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2081 # endif |
|
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2082 } |
|
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2083 } |
|
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2084 else |
|
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2085 dict_add_string(d, "error", |
|
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2086 vim_strsave((char_u *)"Cannot read file")); |
|
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2087 close(fd); |
|
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2088 } |
|
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Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2089 else |
|
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2090 dict_add_string(d, "error", vim_strsave((char_u *)"Cannot open file")); |
|
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2091 } |
|
14601
d0ff19a55579
patch 8.1.0314: build failure without the +eval feature
Christian Brabandt <cb@256bit.org>
parents:
14599
diff
changeset
|
2092 #endif |
|
14599
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2093 |
|
72d6f6f7ead7
patch 8.1.0313: information about a swap file is unavailable
Christian Brabandt <cb@256bit.org>
parents:
14593
diff
changeset
|
2094 /* |
| 580 | 2095 * Give information about an existing swap file. |
| 7 | 2096 * Returns timestamp (0 when unknown). |
| 2097 */ | |
| 2098 static time_t | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2099 swapfile_info(char_u *fname) |
| 7 | 2100 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2101 stat_T st; |
| 7 | 2102 int fd; |
| 2103 struct block0 b0; | |
| 2104 time_t x = (time_t)0; | |
| 1001 | 2105 char *p; |
| 7 | 2106 #ifdef UNIX |
| 2107 char_u uname[B0_UNAME_SIZE]; | |
| 2108 #endif | |
| 2109 | |
| 2110 /* print the swap file date */ | |
| 2111 if (mch_stat((char *)fname, &st) != -1) | |
| 2112 { | |
| 2113 #ifdef UNIX | |
| 2114 /* print name of owner of the file */ | |
| 2115 if (mch_get_uname(st.st_uid, uname, B0_UNAME_SIZE) == OK) | |
| 2116 { | |
| 2117 MSG_PUTS(_(" owned by: ")); | |
| 2118 msg_outtrans(uname); | |
| 2119 MSG_PUTS(_(" dated: ")); | |
| 2120 } | |
| 2121 else | |
| 2122 #endif | |
| 2123 MSG_PUTS(_(" dated: ")); | |
| 2124 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 2125 p = ctime(&x); /* includes '\n' */ |
| 2126 if (p == NULL) | |
| 2127 MSG_PUTS("(invalid)\n"); | |
| 2128 else | |
| 2129 MSG_PUTS(p); | |
| 7 | 2130 } |
| 2131 | |
| 2132 /* | |
| 2133 * print the original file name | |
| 2134 */ | |
| 2135 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 2136 if (fd >= 0) | |
| 2137 { | |
| 2664 | 2138 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 2139 { |
| 2140 if (STRNCMP(b0.b0_version, "VIM 3.0", 7) == 0) | |
| 2141 { | |
| 2142 MSG_PUTS(_(" [from Vim version 3.0]")); | |
| 2143 } | |
| 2267 | 2144 else if (ml_check_b0_id(&b0) == FAIL) |
| 7 | 2145 { |
| 2146 MSG_PUTS(_(" [does not look like a Vim swap file]")); | |
| 2147 } | |
| 2148 else | |
| 2149 { | |
| 2150 MSG_PUTS(_(" file name: ")); | |
| 2151 if (b0.b0_fname[0] == NUL) | |
| 9 | 2152 MSG_PUTS(_("[No Name]")); |
| 7 | 2153 else |
| 2154 msg_outtrans(b0.b0_fname); | |
| 2155 | |
| 2156 MSG_PUTS(_("\n modified: ")); | |
| 2157 MSG_PUTS(b0.b0_dirty ? _("YES") : _("no")); | |
| 2158 | |
| 2159 if (*(b0.b0_uname) != NUL) | |
| 2160 { | |
| 2161 MSG_PUTS(_("\n user name: ")); | |
| 2162 msg_outtrans(b0.b0_uname); | |
| 2163 } | |
| 2164 | |
| 2165 if (*(b0.b0_hname) != NUL) | |
| 2166 { | |
| 2167 if (*(b0.b0_uname) != NUL) | |
| 2168 MSG_PUTS(_(" host name: ")); | |
| 2169 else | |
| 2170 MSG_PUTS(_("\n host name: ")); | |
| 2171 msg_outtrans(b0.b0_hname); | |
| 2172 } | |
| 2173 | |
| 2174 if (char_to_long(b0.b0_pid) != 0L) | |
| 2175 { | |
| 2176 MSG_PUTS(_("\n process ID: ")); | |
| 2177 msg_outnum(char_to_long(b0.b0_pid)); | |
|
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b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
2178 #if defined(UNIX) |
| 7 | 2179 /* EMX kill() not working correctly, it seems */ |
| 2180 if (kill((pid_t)char_to_long(b0.b0_pid), 0) == 0) | |
| 2181 { | |
| 2182 MSG_PUTS(_(" (still running)")); | |
| 2183 # if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 2184 process_still_running = TRUE; | |
| 2185 # endif | |
| 2186 } | |
| 2187 #endif | |
| 2188 } | |
| 2189 | |
| 2190 if (b0_magic_wrong(&b0)) | |
| 2191 { | |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
2192 #if defined(MSWIN) |
| 7 | 2193 if (STRNCMP(b0.b0_hname, "PC ", 3) == 0) |
| 2194 MSG_PUTS(_("\n [not usable with this version of Vim]")); | |
| 2195 else | |
| 2196 #endif | |
| 2197 MSG_PUTS(_("\n [not usable on this computer]")); | |
| 2198 } | |
| 2199 } | |
| 2200 } | |
| 2201 else | |
| 2202 MSG_PUTS(_(" [cannot be read]")); | |
| 2203 close(fd); | |
| 2204 } | |
| 2205 else | |
| 2206 MSG_PUTS(_(" [cannot be opened]")); | |
| 2207 msg_putchar('\n'); | |
| 2208 | |
| 2209 return x; | |
| 2210 } | |
| 2211 | |
| 2212 static int | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2213 recov_file_names(char_u **names, char_u *path, int prepend_dot) |
| 7 | 2214 { |
| 2215 int num_names; | |
| 2216 | |
| 2217 /* | |
| 2218 * (Win32 and Win64) never short names, but do prepend a dot. | |
| 2219 * (Not MS-DOS or Win32 or Win64) maybe short name, maybe not: Try both. | |
| 2220 * Only use the short name if it is different. | |
| 2221 */ | |
| 2222 char_u *p; | |
| 2223 int i; | |
| 2224 # ifndef WIN3264 | |
| 2225 int shortname = curbuf->b_shortname; | |
| 2226 | |
| 2227 curbuf->b_shortname = FALSE; | |
| 2228 # endif | |
| 2229 | |
| 2230 num_names = 0; | |
| 2231 | |
| 2232 /* | |
| 2233 * May also add the file name with a dot prepended, for swap file in same | |
| 2234 * dir as original file. | |
| 2235 */ | |
| 2236 if (prepend_dot) | |
| 2237 { | |
| 2238 names[num_names] = modname(path, (char_u *)".sw?", TRUE); | |
| 2239 if (names[num_names] == NULL) | |
| 2240 goto end; | |
| 2241 ++num_names; | |
| 2242 } | |
| 2243 | |
| 2244 /* | |
| 2245 * Form the normal swap file name pattern by appending ".sw?". | |
| 2246 */ | |
| 2247 #ifdef VMS | |
| 2248 names[num_names] = concat_fnames(path, (char_u *)"_sw%", FALSE); | |
| 2249 #else | |
| 2250 names[num_names] = concat_fnames(path, (char_u *)".sw?", FALSE); | |
| 2251 #endif | |
| 2252 if (names[num_names] == NULL) | |
| 2253 goto end; | |
| 2254 if (num_names >= 1) /* check if we have the same name twice */ | |
| 2255 { | |
| 2256 p = names[num_names - 1]; | |
| 2257 i = (int)STRLEN(names[num_names - 1]) - (int)STRLEN(names[num_names]); | |
| 2258 if (i > 0) | |
| 2259 p += i; /* file name has been expanded to full path */ | |
| 2260 | |
| 2261 if (STRCMP(p, names[num_names]) != 0) | |
| 2262 ++num_names; | |
| 2263 else | |
| 2264 vim_free(names[num_names]); | |
| 2265 } | |
| 2266 else | |
| 2267 ++num_names; | |
| 2268 | |
| 2269 # ifndef WIN3264 | |
| 2270 /* | |
| 2271 * Also try with 'shortname' set, in case the file is on a DOS filesystem. | |
| 2272 */ | |
| 2273 curbuf->b_shortname = TRUE; | |
| 2274 #ifdef VMS | |
| 2275 names[num_names] = modname(path, (char_u *)"_sw%", FALSE); | |
| 2276 #else | |
| 2277 names[num_names] = modname(path, (char_u *)".sw?", FALSE); | |
| 2278 #endif | |
| 2279 if (names[num_names] == NULL) | |
| 2280 goto end; | |
| 2281 | |
| 2282 /* | |
| 2283 * Remove the one from 'shortname', if it's the same as with 'noshortname'. | |
| 2284 */ | |
| 2285 p = names[num_names]; | |
| 2286 i = STRLEN(names[num_names]) - STRLEN(names[num_names - 1]); | |
| 2287 if (i > 0) | |
| 2288 p += i; /* file name has been expanded to full path */ | |
| 2289 if (STRCMP(names[num_names - 1], p) == 0) | |
| 2290 vim_free(names[num_names]); | |
| 2291 else | |
| 2292 ++num_names; | |
| 2293 # endif | |
| 2294 | |
| 2295 end: | |
| 2296 # ifndef WIN3264 | |
| 2297 curbuf->b_shortname = shortname; | |
| 2298 # endif | |
| 2299 | |
| 2300 return num_names; | |
| 2301 } | |
| 2302 | |
| 2303 /* | |
| 2304 * sync all memlines | |
| 2305 * | |
| 2306 * If 'check_file' is TRUE, check if original file exists and was not changed. | |
| 2307 * If 'check_char' is TRUE, stop syncing when character becomes available, but | |
| 2308 * always sync at least one block. | |
| 2309 */ | |
| 2310 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2311 ml_sync_all(int check_file, int check_char) |
| 7 | 2312 { |
| 2313 buf_T *buf; | |
|
9387
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commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
2314 stat_T st; |
| 7 | 2315 |
|
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
9536
diff
changeset
|
2316 FOR_ALL_BUFFERS(buf) |
| 7 | 2317 { |
| 2318 if (buf->b_ml.ml_mfp == NULL || buf->b_ml.ml_mfp->mf_fname == NULL) | |
| 2319 continue; /* no file */ | |
| 2320 | |
| 2321 ml_flush_line(buf); /* flush buffered line */ | |
| 2322 /* flush locked block */ | |
| 2323 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); | |
| 2324 if (bufIsChanged(buf) && check_file && mf_need_trans(buf->b_ml.ml_mfp) | |
| 2325 && buf->b_ffname != NULL) | |
| 2326 { | |
| 2327 /* | |
| 2328 * If the original file does not exist anymore or has been changed | |
| 2329 * call ml_preserve() to get rid of all negative numbered blocks. | |
| 2330 */ | |
| 2331 if (mch_stat((char *)buf->b_ffname, &st) == -1 | |
| 2332 || st.st_mtime != buf->b_mtime_read | |
|
2241
60da25e3aab7
Correct use of long instead of off_t for file size. (James Vega)
Bram Moolenaar <bram@vim.org>
parents:
2240
diff
changeset
|
2333 || st.st_size != buf->b_orig_size) |
| 7 | 2334 { |
| 2335 ml_preserve(buf, FALSE); | |
| 2336 did_check_timestamps = FALSE; | |
| 2337 need_check_timestamps = TRUE; /* give message later */ | |
| 2338 } | |
| 2339 } | |
| 2340 if (buf->b_ml.ml_mfp->mf_dirty) | |
| 2341 { | |
| 2342 (void)mf_sync(buf->b_ml.ml_mfp, (check_char ? MFS_STOP : 0) | |
| 2343 | (bufIsChanged(buf) ? MFS_FLUSH : 0)); | |
| 2344 if (check_char && ui_char_avail()) /* character available now */ | |
| 2345 break; | |
| 2346 } | |
| 2347 } | |
| 2348 } | |
| 2349 | |
| 2350 /* | |
| 2351 * sync one buffer, including negative blocks | |
| 2352 * | |
| 2353 * after this all the blocks are in the swap file | |
| 2354 * | |
| 2355 * Used for the :preserve command and when the original file has been | |
| 2356 * changed or deleted. | |
| 2357 * | |
| 2358 * when message is TRUE the success of preserving is reported | |
| 2359 */ | |
| 2360 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2361 ml_preserve(buf_T *buf, int message) |
| 7 | 2362 { |
| 2363 bhdr_T *hp; | |
| 2364 linenr_T lnum; | |
| 2365 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 2366 int status; | |
| 2367 int got_int_save = got_int; | |
| 2368 | |
| 2369 if (mfp == NULL || mfp->mf_fname == NULL) | |
| 2370 { | |
| 2371 if (message) | |
| 2372 EMSG(_("E313: Cannot preserve, there is no swap file")); | |
| 2373 return; | |
| 2374 } | |
| 2375 | |
| 2376 /* We only want to stop when interrupted here, not when interrupted | |
| 2377 * before. */ | |
| 2378 got_int = FALSE; | |
| 2379 | |
| 2380 ml_flush_line(buf); /* flush buffered line */ | |
| 2381 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2382 status = mf_sync(mfp, MFS_ALL | MFS_FLUSH); | |
| 2383 | |
| 2384 /* stack is invalid after mf_sync(.., MFS_ALL) */ | |
| 2385 buf->b_ml.ml_stack_top = 0; | |
| 2386 | |
| 2387 /* | |
| 2388 * Some of the data blocks may have been changed from negative to | |
| 2389 * positive block number. In that case the pointer blocks need to be | |
| 2390 * updated. | |
| 2391 * | |
| 2392 * We don't know in which pointer block the references are, so we visit | |
| 2393 * all data blocks until there are no more translations to be done (or | |
| 2394 * we hit the end of the file, which can only happen in case a write fails, | |
| 2395 * e.g. when file system if full). | |
| 2396 * ml_find_line() does the work by translating the negative block numbers | |
| 2397 * when getting the first line of each data block. | |
| 2398 */ | |
| 2399 if (mf_need_trans(mfp) && !got_int) | |
| 2400 { | |
| 2401 lnum = 1; | |
| 2402 while (mf_need_trans(mfp) && lnum <= buf->b_ml.ml_line_count) | |
| 2403 { | |
| 2404 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 2405 if (hp == NULL) | |
| 2406 { | |
| 2407 status = FAIL; | |
| 2408 goto theend; | |
| 2409 } | |
| 2410 CHECK(buf->b_ml.ml_locked_low != lnum, "low != lnum"); | |
| 2411 lnum = buf->b_ml.ml_locked_high + 1; | |
| 2412 } | |
| 2413 (void)ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush locked block */ | |
| 2414 /* sync the updated pointer blocks */ | |
| 2415 if (mf_sync(mfp, MFS_ALL | MFS_FLUSH) == FAIL) | |
| 2416 status = FAIL; | |
| 2417 buf->b_ml.ml_stack_top = 0; /* stack is invalid now */ | |
| 2418 } | |
| 2419 theend: | |
| 2420 got_int |= got_int_save; | |
| 2421 | |
| 2422 if (message) | |
| 2423 { | |
| 2424 if (status == OK) | |
| 2425 MSG(_("File preserved")); | |
| 2426 else | |
| 2427 EMSG(_("E314: Preserve failed")); | |
| 2428 } | |
| 2429 } | |
| 2430 | |
| 2431 /* | |
| 2432 * NOTE: The pointer returned by the ml_get_*() functions only remains valid | |
| 2433 * until the next call! | |
| 2434 * line1 = ml_get(1); | |
| 2435 * line2 = ml_get(2); // line1 is now invalid! | |
| 2436 * Make a copy of the line if necessary. | |
| 2437 */ | |
| 2438 /* | |
| 2657 | 2439 * Return a pointer to a (read-only copy of a) line. |
| 7 | 2440 * |
| 2441 * On failure an error message is given and IObuff is returned (to avoid | |
| 2442 * having to check for error everywhere). | |
| 2443 */ | |
| 2444 char_u * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2445 ml_get(linenr_T lnum) |
| 7 | 2446 { |
| 2447 return ml_get_buf(curbuf, lnum, FALSE); | |
| 2448 } | |
| 2449 | |
| 2450 /* | |
| 2657 | 2451 * Return pointer to position "pos". |
| 7 | 2452 */ |
| 2453 char_u * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2454 ml_get_pos(pos_T *pos) |
| 7 | 2455 { |
| 2456 return (ml_get_buf(curbuf, pos->lnum, FALSE) + pos->col); | |
| 2457 } | |
| 2458 | |
| 2459 /* | |
| 2657 | 2460 * Return pointer to cursor line. |
| 7 | 2461 */ |
| 2462 char_u * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2463 ml_get_curline(void) |
| 7 | 2464 { |
| 2465 return ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE); | |
| 2466 } | |
| 2467 | |
| 2468 /* | |
| 2657 | 2469 * Return pointer to cursor position. |
| 7 | 2470 */ |
| 2471 char_u * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2472 ml_get_cursor(void) |
| 7 | 2473 { |
| 2474 return (ml_get_buf(curbuf, curwin->w_cursor.lnum, FALSE) + | |
| 2475 curwin->w_cursor.col); | |
| 2476 } | |
| 2477 | |
| 2478 /* | |
| 2657 | 2479 * Return a pointer to a line in a specific buffer |
| 7 | 2480 * |
| 2481 * "will_change": if TRUE mark the buffer dirty (chars in the line will be | |
| 2482 * changed) | |
| 2483 */ | |
| 2484 char_u * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2485 ml_get_buf( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2486 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2487 linenr_T lnum, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2488 int will_change) /* line will be changed */ |
| 7 | 2489 { |
| 1068 | 2490 bhdr_T *hp; |
| 2491 DATA_BL *dp; | |
| 2492 char_u *ptr; | |
| 2493 static int recursive = 0; | |
| 7 | 2494 |
| 2495 if (lnum > buf->b_ml.ml_line_count) /* invalid line number */ | |
| 2496 { | |
| 1068 | 2497 if (recursive == 0) |
| 2498 { | |
| 2499 /* Avoid giving this message for a recursive call, may happen when | |
| 2500 * the GUI redraws part of the text. */ | |
| 2501 ++recursive; | |
|
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commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2502 IEMSGN(_("E315: ml_get: invalid lnum: %ld"), lnum); |
| 1068 | 2503 --recursive; |
| 2504 } | |
| 7 | 2505 errorret: |
| 2506 STRCPY(IObuff, "???"); | |
| 2507 return IObuff; | |
| 2508 } | |
| 2509 if (lnum <= 0) /* pretend line 0 is line 1 */ | |
| 2510 lnum = 1; | |
| 2511 | |
| 2512 if (buf->b_ml.ml_mfp == NULL) /* there are no lines */ | |
| 2513 return (char_u *)""; | |
| 2514 | |
|
2108
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|
2515 /* |
|
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changeset
|
2516 * See if it is the same line as requested last time. |
|
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diff
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|
2517 * Otherwise may need to flush last used line. |
|
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diff
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|
2518 * Don't use the last used line when 'swapfile' is reset, need to load all |
|
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|
2519 * blocks. |
|
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diff
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|
2520 */ |
| 1066 | 2521 if (buf->b_ml.ml_line_lnum != lnum || mf_dont_release) |
| 7 | 2522 { |
| 2523 ml_flush_line(buf); | |
| 2524 | |
| 2525 /* | |
| 2526 * Find the data block containing the line. | |
| 2527 * This also fills the stack with the blocks from the root to the data | |
| 2528 * block and releases any locked block. | |
| 2529 */ | |
| 2530 if ((hp = ml_find_line(buf, lnum, ML_FIND)) == NULL) | |
| 2531 { | |
| 1068 | 2532 if (recursive == 0) |
| 2533 { | |
| 2534 /* Avoid giving this message for a recursive call, may happen | |
| 2535 * when the GUI redraws part of the text. */ | |
| 2536 ++recursive; | |
|
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diff
changeset
|
2537 IEMSGN(_("E316: ml_get: cannot find line %ld"), lnum); |
| 1068 | 2538 --recursive; |
| 2539 } | |
| 7 | 2540 goto errorret; |
| 2541 } | |
| 2542 | |
| 2543 dp = (DATA_BL *)(hp->bh_data); | |
| 2544 | |
| 2545 ptr = (char_u *)dp + ((dp->db_index[lnum - buf->b_ml.ml_locked_low]) & DB_INDEX_MASK); | |
| 2546 buf->b_ml.ml_line_ptr = ptr; | |
| 2547 buf->b_ml.ml_line_lnum = lnum; | |
| 2548 buf->b_ml.ml_flags &= ~ML_LINE_DIRTY; | |
| 2549 } | |
| 2550 if (will_change) | |
| 2551 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 2552 | |
| 2553 return buf->b_ml.ml_line_ptr; | |
| 2554 } | |
| 2555 | |
| 2556 /* | |
| 2557 * Check if a line that was just obtained by a call to ml_get | |
| 2558 * is in allocated memory. | |
| 2559 */ | |
| 2560 int | |
|
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diff
changeset
|
2561 ml_line_alloced(void) |
| 7 | 2562 { |
| 2563 return (curbuf->b_ml.ml_flags & ML_LINE_DIRTY); | |
| 2564 } | |
| 2565 | |
| 2566 /* | |
| 2567 * Append a line after lnum (may be 0 to insert a line in front of the file). | |
| 2568 * "line" does not need to be allocated, but can't be another line in a | |
| 2569 * buffer, unlocking may make it invalid. | |
| 2570 * | |
| 2571 * newfile: TRUE when starting to edit a new file, meaning that pe_old_lnum | |
| 2572 * will be set for recovery | |
| 2573 * Check: The caller of this function should probably also call | |
| 2574 * appended_lines(). | |
| 2575 * | |
| 2576 * return FAIL for failure, OK otherwise | |
| 2577 */ | |
| 2578 int | |
|
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diff
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|
2579 ml_append( |
|
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|
2580 linenr_T lnum, /* append after this line (can be 0) */ |
|
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|
2581 char_u *line, /* text of the new line */ |
|
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diff
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|
2582 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
41789f16d6b2
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diff
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|
2583 int newfile) /* flag, see above */ |
| 7 | 2584 { |
| 2585 /* When starting up, we might still need to create the memfile */ | |
|
2394
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|
2586 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 2587 return FAIL; |
| 2588 | |
| 2589 if (curbuf->b_ml.ml_line_lnum != 0) | |
| 2590 ml_flush_line(curbuf); | |
| 2591 return ml_append_int(curbuf, lnum, line, len, newfile, FALSE); | |
| 2592 } | |
| 2593 | |
|
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diff
changeset
|
2594 #if defined(FEAT_SPELL) || defined(FEAT_QUICKFIX) || defined(PROTO) |
| 625 | 2595 /* |
| 2596 * Like ml_append() but for an arbitrary buffer. The buffer must already have | |
| 2597 * a memline. | |
| 2598 */ | |
| 2599 int | |
|
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diff
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|
2600 ml_append_buf( |
|
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diff
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|
2601 buf_T *buf, |
|
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diff
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|
2602 linenr_T lnum, /* append after this line (can be 0) */ |
|
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diff
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|
2603 char_u *line, /* text of the new line */ |
|
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diff
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|
2604 colnr_T len, /* length of new line, including NUL, or 0 */ |
|
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parents:
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diff
changeset
|
2605 int newfile) /* flag, see above */ |
| 625 | 2606 { |
| 2607 if (buf->b_ml.ml_mfp == NULL) | |
| 2608 return FAIL; | |
| 2609 | |
| 2610 if (buf->b_ml.ml_line_lnum != 0) | |
| 2611 ml_flush_line(buf); | |
| 2612 return ml_append_int(buf, lnum, line, len, newfile, FALSE); | |
| 2613 } | |
| 2614 #endif | |
| 2615 | |
| 7 | 2616 static int |
|
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diff
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|
2617 ml_append_int( |
|
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diff
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|
2618 buf_T *buf, |
|
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diff
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|
2619 linenr_T lnum, /* append after this line (can be 0) */ |
|
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parents:
7803
diff
changeset
|
2620 char_u *line, /* text of the new line */ |
|
41789f16d6b2
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diff
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|
2621 colnr_T len, /* length of line, including NUL, or 0 */ |
|
41789f16d6b2
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7803
diff
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|
2622 int newfile, /* flag, see above */ |
|
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parents:
7803
diff
changeset
|
2623 int mark) /* mark the new line */ |
| 7 | 2624 { |
| 2625 int i; | |
| 2626 int line_count; /* number of indexes in current block */ | |
| 2627 int offset; | |
| 2628 int from, to; | |
| 2629 int space_needed; /* space needed for new line */ | |
| 2630 int page_size; | |
| 2631 int page_count; | |
| 2632 int db_idx; /* index for lnum in data block */ | |
| 2633 bhdr_T *hp; | |
| 2634 memfile_T *mfp; | |
| 2635 DATA_BL *dp; | |
| 2636 PTR_BL *pp; | |
| 2637 infoptr_T *ip; | |
| 2638 | |
| 2639 /* lnum out of range */ | |
| 2640 if (lnum > buf->b_ml.ml_line_count || buf->b_ml.ml_mfp == NULL) | |
| 2641 return FAIL; | |
| 2642 | |
| 2643 if (lowest_marked && lowest_marked > lnum) | |
| 2644 lowest_marked = lnum + 1; | |
| 2645 | |
| 2646 if (len == 0) | |
| 2647 len = (colnr_T)STRLEN(line) + 1; /* space needed for the text */ | |
| 2648 space_needed = len + INDEX_SIZE; /* space needed for text + index */ | |
| 2649 | |
| 2650 mfp = buf->b_ml.ml_mfp; | |
| 2651 page_size = mfp->mf_page_size; | |
| 2652 | |
| 2653 /* | |
| 2654 * find the data block containing the previous line | |
| 2655 * This also fills the stack with the blocks from the root to the data block | |
| 2656 * This also releases any locked block. | |
| 2657 */ | |
| 2658 if ((hp = ml_find_line(buf, lnum == 0 ? (linenr_T)1 : lnum, | |
| 2659 ML_INSERT)) == NULL) | |
| 2660 return FAIL; | |
| 2661 | |
| 2662 buf->b_ml.ml_flags &= ~ML_EMPTY; | |
| 2663 | |
| 2664 if (lnum == 0) /* got line one instead, correct db_idx */ | |
| 2665 db_idx = -1; /* careful, it is negative! */ | |
| 2666 else | |
| 2667 db_idx = lnum - buf->b_ml.ml_locked_low; | |
| 2668 /* get line count before the insertion */ | |
| 2669 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2670 | |
| 2671 dp = (DATA_BL *)(hp->bh_data); | |
| 2672 | |
| 2673 /* | |
| 2674 * If | |
| 2675 * - there is not enough room in the current block | |
| 2676 * - appending to the last line in the block | |
| 2677 * - not appending to the last line in the file | |
| 2678 * insert in front of the next block. | |
| 2679 */ | |
| 2680 if ((int)dp->db_free < space_needed && db_idx == line_count - 1 | |
| 2681 && lnum < buf->b_ml.ml_line_count) | |
| 2682 { | |
| 2683 /* | |
| 2684 * Now that the line is not going to be inserted in the block that we | |
| 2685 * expected, the line count has to be adjusted in the pointer blocks | |
| 2686 * by using ml_locked_lineadd. | |
| 2687 */ | |
| 2688 --(buf->b_ml.ml_locked_lineadd); | |
| 2689 --(buf->b_ml.ml_locked_high); | |
| 2690 if ((hp = ml_find_line(buf, lnum + 1, ML_INSERT)) == NULL) | |
| 2691 return FAIL; | |
| 2692 | |
| 2693 db_idx = -1; /* careful, it is negative! */ | |
| 2694 /* get line count before the insertion */ | |
| 2695 line_count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low; | |
| 2696 CHECK(buf->b_ml.ml_locked_low != lnum + 1, "locked_low != lnum + 1"); | |
| 2697 | |
| 2698 dp = (DATA_BL *)(hp->bh_data); | |
| 2699 } | |
| 2700 | |
| 2701 ++buf->b_ml.ml_line_count; | |
| 2702 | |
| 2703 if ((int)dp->db_free >= space_needed) /* enough room in data block */ | |
| 2704 { | |
| 2705 /* | |
| 2706 * Insert new line in existing data block, or in data block allocated above. | |
| 2707 */ | |
| 2708 dp->db_txt_start -= len; | |
| 2709 dp->db_free -= space_needed; | |
| 2710 ++(dp->db_line_count); | |
| 2711 | |
| 2712 /* | |
| 2713 * move the text of the lines that follow to the front | |
| 2714 * adjust the indexes of the lines that follow | |
| 2715 */ | |
| 2716 if (line_count > db_idx + 1) /* if there are following lines */ | |
| 2717 { | |
| 2718 /* | |
| 2719 * Offset is the start of the previous line. | |
| 2720 * This will become the character just after the new line. | |
| 2721 */ | |
| 2722 if (db_idx < 0) | |
| 2723 offset = dp->db_txt_end; | |
| 2724 else | |
| 2725 offset = ((dp->db_index[db_idx]) & DB_INDEX_MASK); | |
| 2726 mch_memmove((char *)dp + dp->db_txt_start, | |
| 2727 (char *)dp + dp->db_txt_start + len, | |
| 2728 (size_t)(offset - (dp->db_txt_start + len))); | |
| 2729 for (i = line_count - 1; i > db_idx; --i) | |
| 2730 dp->db_index[i + 1] = dp->db_index[i] - len; | |
| 2731 dp->db_index[db_idx + 1] = offset - len; | |
| 2732 } | |
| 2733 else /* add line at the end */ | |
| 2734 dp->db_index[db_idx + 1] = dp->db_txt_start; | |
| 2735 | |
| 2736 /* | |
| 2737 * copy the text into the block | |
| 2738 */ | |
| 2739 mch_memmove((char *)dp + dp->db_index[db_idx + 1], line, (size_t)len); | |
| 2740 if (mark) | |
| 2741 dp->db_index[db_idx + 1] |= DB_MARKED; | |
| 2742 | |
| 2743 /* | |
| 2744 * Mark the block dirty. | |
| 2745 */ | |
| 2746 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2747 if (!newfile) | |
| 2748 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2749 } | |
| 2750 else /* not enough space in data block */ | |
| 2751 { | |
| 2752 /* | |
| 2753 * If there is not enough room we have to create a new data block and copy some | |
| 2754 * lines into it. | |
| 2755 * Then we have to insert an entry in the pointer block. | |
| 2756 * If this pointer block also is full, we go up another block, and so on, up | |
| 2757 * to the root if necessary. | |
| 2758 * The line counts in the pointer blocks have already been adjusted by | |
| 2759 * ml_find_line(). | |
| 2760 */ | |
| 2761 long line_count_left, line_count_right; | |
| 2762 int page_count_left, page_count_right; | |
| 2763 bhdr_T *hp_left; | |
| 2764 bhdr_T *hp_right; | |
| 2765 bhdr_T *hp_new; | |
| 2766 int lines_moved; | |
| 2767 int data_moved = 0; /* init to shut up gcc */ | |
| 2768 int total_moved = 0; /* init to shut up gcc */ | |
| 2769 DATA_BL *dp_right, *dp_left; | |
| 2770 int stack_idx; | |
| 2771 int in_left; | |
| 2772 int lineadd; | |
| 2773 blocknr_T bnum_left, bnum_right; | |
| 2774 linenr_T lnum_left, lnum_right; | |
| 2775 int pb_idx; | |
| 2776 PTR_BL *pp_new; | |
| 2777 | |
| 2778 /* | |
| 2779 * We are going to allocate a new data block. Depending on the | |
| 2780 * situation it will be put to the left or right of the existing | |
| 2781 * block. If possible we put the new line in the left block and move | |
| 2782 * the lines after it to the right block. Otherwise the new line is | |
| 2783 * also put in the right block. This method is more efficient when | |
| 2784 * inserting a lot of lines at one place. | |
| 2785 */ | |
| 2786 if (db_idx < 0) /* left block is new, right block is existing */ | |
| 2787 { | |
| 2788 lines_moved = 0; | |
| 2789 in_left = TRUE; | |
| 2790 /* space_needed does not change */ | |
| 2791 } | |
| 2792 else /* left block is existing, right block is new */ | |
| 2793 { | |
| 2794 lines_moved = line_count - db_idx - 1; | |
| 2795 if (lines_moved == 0) | |
| 2796 in_left = FALSE; /* put new line in right block */ | |
| 2797 /* space_needed does not change */ | |
| 2798 else | |
| 2799 { | |
| 2800 data_moved = ((dp->db_index[db_idx]) & DB_INDEX_MASK) - | |
| 2801 dp->db_txt_start; | |
| 2802 total_moved = data_moved + lines_moved * INDEX_SIZE; | |
| 2803 if ((int)dp->db_free + total_moved >= space_needed) | |
| 2804 { | |
| 2805 in_left = TRUE; /* put new line in left block */ | |
| 2806 space_needed = total_moved; | |
| 2807 } | |
| 2808 else | |
| 2809 { | |
| 2810 in_left = FALSE; /* put new line in right block */ | |
| 2811 space_needed += total_moved; | |
| 2812 } | |
| 2813 } | |
| 2814 } | |
| 2815 | |
| 2816 page_count = ((space_needed + HEADER_SIZE) + page_size - 1) / page_size; | |
| 2817 if ((hp_new = ml_new_data(mfp, newfile, page_count)) == NULL) | |
| 2818 { | |
| 2819 /* correct line counts in pointer blocks */ | |
| 2820 --(buf->b_ml.ml_locked_lineadd); | |
| 2821 --(buf->b_ml.ml_locked_high); | |
| 2822 return FAIL; | |
| 2823 } | |
| 2824 if (db_idx < 0) /* left block is new */ | |
| 2825 { | |
| 2826 hp_left = hp_new; | |
| 2827 hp_right = hp; | |
| 2828 line_count_left = 0; | |
| 2829 line_count_right = line_count; | |
| 2830 } | |
| 2831 else /* right block is new */ | |
| 2832 { | |
| 2833 hp_left = hp; | |
| 2834 hp_right = hp_new; | |
| 2835 line_count_left = line_count; | |
| 2836 line_count_right = 0; | |
| 2837 } | |
| 2838 dp_right = (DATA_BL *)(hp_right->bh_data); | |
| 2839 dp_left = (DATA_BL *)(hp_left->bh_data); | |
| 2840 bnum_left = hp_left->bh_bnum; | |
| 2841 bnum_right = hp_right->bh_bnum; | |
| 2842 page_count_left = hp_left->bh_page_count; | |
| 2843 page_count_right = hp_right->bh_page_count; | |
| 2844 | |
| 2845 /* | |
| 2846 * May move the new line into the right/new block. | |
| 2847 */ | |
| 2848 if (!in_left) | |
| 2849 { | |
| 2850 dp_right->db_txt_start -= len; | |
| 2851 dp_right->db_free -= len + INDEX_SIZE; | |
| 2852 dp_right->db_index[0] = dp_right->db_txt_start; | |
| 2853 if (mark) | |
| 2854 dp_right->db_index[0] |= DB_MARKED; | |
| 2855 | |
| 2856 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2857 line, (size_t)len); | |
| 2858 ++line_count_right; | |
| 2859 } | |
| 2860 /* | |
| 2861 * may move lines from the left/old block to the right/new one. | |
| 2862 */ | |
| 2863 if (lines_moved) | |
| 2864 { | |
| 2865 /* | |
| 2866 */ | |
| 2867 dp_right->db_txt_start -= data_moved; | |
| 2868 dp_right->db_free -= total_moved; | |
| 2869 mch_memmove((char *)dp_right + dp_right->db_txt_start, | |
| 2870 (char *)dp_left + dp_left->db_txt_start, | |
| 2871 (size_t)data_moved); | |
| 2872 offset = dp_right->db_txt_start - dp_left->db_txt_start; | |
| 2873 dp_left->db_txt_start += data_moved; | |
| 2874 dp_left->db_free += total_moved; | |
| 2875 | |
| 2876 /* | |
| 2877 * update indexes in the new block | |
| 2878 */ | |
| 2879 for (to = line_count_right, from = db_idx + 1; | |
| 2880 from < line_count_left; ++from, ++to) | |
| 2881 dp_right->db_index[to] = dp->db_index[from] + offset; | |
| 2882 line_count_right += lines_moved; | |
| 2883 line_count_left -= lines_moved; | |
| 2884 } | |
| 2885 | |
| 2886 /* | |
| 2887 * May move the new line into the left (old or new) block. | |
| 2888 */ | |
| 2889 if (in_left) | |
| 2890 { | |
| 2891 dp_left->db_txt_start -= len; | |
| 2892 dp_left->db_free -= len + INDEX_SIZE; | |
| 2893 dp_left->db_index[line_count_left] = dp_left->db_txt_start; | |
| 2894 if (mark) | |
| 2895 dp_left->db_index[line_count_left] |= DB_MARKED; | |
| 2896 mch_memmove((char *)dp_left + dp_left->db_txt_start, | |
| 2897 line, (size_t)len); | |
| 2898 ++line_count_left; | |
| 2899 } | |
| 2900 | |
| 2901 if (db_idx < 0) /* left block is new */ | |
| 2902 { | |
| 2903 lnum_left = lnum + 1; | |
| 2904 lnum_right = 0; | |
| 2905 } | |
| 2906 else /* right block is new */ | |
| 2907 { | |
| 2908 lnum_left = 0; | |
| 2909 if (in_left) | |
| 2910 lnum_right = lnum + 2; | |
| 2911 else | |
| 2912 lnum_right = lnum + 1; | |
| 2913 } | |
| 2914 dp_left->db_line_count = line_count_left; | |
| 2915 dp_right->db_line_count = line_count_right; | |
| 2916 | |
| 2917 /* | |
| 2918 * release the two data blocks | |
| 2919 * The new one (hp_new) already has a correct blocknumber. | |
| 2920 * The old one (hp, in ml_locked) gets a positive blocknumber if | |
| 2921 * we changed it and we are not editing a new file. | |
| 2922 */ | |
| 2923 if (lines_moved || in_left) | |
| 2924 buf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 2925 if (!newfile && db_idx >= 0 && in_left) | |
| 2926 buf->b_ml.ml_flags |= ML_LOCKED_POS; | |
| 2927 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 2928 | |
| 2929 /* | |
| 2930 * flush the old data block | |
| 2931 * set ml_locked_lineadd to 0, because the updating of the | |
| 2932 * pointer blocks is done below | |
| 2933 */ | |
| 2934 lineadd = buf->b_ml.ml_locked_lineadd; | |
| 2935 buf->b_ml.ml_locked_lineadd = 0; | |
| 2936 ml_find_line(buf, (linenr_T)0, ML_FLUSH); /* flush data block */ | |
| 2937 | |
| 2938 /* | |
| 2939 * update pointer blocks for the new data block | |
| 2940 */ | |
| 2941 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; | |
| 2942 --stack_idx) | |
| 2943 { | |
| 2944 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 2945 pb_idx = ip->ip_index; | |
| 2946 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 2947 return FAIL; | |
| 2948 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 2949 if (pp->pb_id != PTR_ID) | |
| 2950 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2951 IEMSG(_("E317: pointer block id wrong 3")); |
| 7 | 2952 mf_put(mfp, hp, FALSE, FALSE); |
| 2953 return FAIL; | |
| 2954 } | |
| 2955 /* | |
| 2956 * TODO: If the pointer block is full and we are adding at the end | |
| 2957 * try to insert in front of the next block | |
| 2958 */ | |
| 2959 /* block not full, add one entry */ | |
| 2960 if (pp->pb_count < pp->pb_count_max) | |
| 2961 { | |
| 2962 if (pb_idx + 1 < (int)pp->pb_count) | |
| 2963 mch_memmove(&pp->pb_pointer[pb_idx + 2], | |
| 2964 &pp->pb_pointer[pb_idx + 1], | |
| 2965 (size_t)(pp->pb_count - pb_idx - 1) * sizeof(PTR_EN)); | |
| 2966 ++pp->pb_count; | |
| 2967 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 2968 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 2969 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 2970 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 2971 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 2972 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 2973 | |
| 2974 if (lnum_left != 0) | |
| 2975 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 2976 if (lnum_right != 0) | |
| 2977 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 2978 | |
| 2979 mf_put(mfp, hp, TRUE, FALSE); | |
| 2980 buf->b_ml.ml_stack_top = stack_idx + 1; /* truncate stack */ | |
| 2981 | |
| 2982 if (lineadd) | |
| 2983 { | |
| 2984 --(buf->b_ml.ml_stack_top); | |
| 1167 | 2985 /* fix line count for rest of blocks in the stack */ |
| 7 | 2986 ml_lineadd(buf, lineadd); |
| 2987 /* fix stack itself */ | |
| 2988 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 2989 lineadd; | |
| 2990 ++(buf->b_ml.ml_stack_top); | |
| 2991 } | |
| 2992 | |
| 2993 /* | |
| 2994 * We are finished, break the loop here. | |
| 2995 */ | |
| 2996 break; | |
| 2997 } | |
| 2998 else /* pointer block full */ | |
| 2999 { | |
| 3000 /* | |
| 3001 * split the pointer block | |
| 3002 * allocate a new pointer block | |
| 3003 * move some of the pointer into the new block | |
| 3004 * prepare for updating the parent block | |
| 3005 */ | |
| 3006 for (;;) /* do this twice when splitting block 1 */ | |
| 3007 { | |
| 3008 hp_new = ml_new_ptr(mfp); | |
| 3009 if (hp_new == NULL) /* TODO: try to fix tree */ | |
| 3010 return FAIL; | |
| 3011 pp_new = (PTR_BL *)(hp_new->bh_data); | |
| 3012 | |
| 3013 if (hp->bh_bnum != 1) | |
| 3014 break; | |
| 3015 | |
| 3016 /* | |
| 3017 * if block 1 becomes full the tree is given an extra level | |
| 3018 * The pointers from block 1 are moved into the new block. | |
| 3019 * block 1 is updated to point to the new block | |
| 3020 * then continue to split the new block | |
| 3021 */ | |
| 3022 mch_memmove(pp_new, pp, (size_t)page_size); | |
| 3023 pp->pb_count = 1; | |
| 3024 pp->pb_pointer[0].pe_bnum = hp_new->bh_bnum; | |
| 3025 pp->pb_pointer[0].pe_line_count = buf->b_ml.ml_line_count; | |
| 3026 pp->pb_pointer[0].pe_old_lnum = 1; | |
| 3027 pp->pb_pointer[0].pe_page_count = 1; | |
| 3028 mf_put(mfp, hp, TRUE, FALSE); /* release block 1 */ | |
| 3029 hp = hp_new; /* new block is to be split */ | |
| 3030 pp = pp_new; | |
| 3031 CHECK(stack_idx != 0, _("stack_idx should be 0")); | |
| 3032 ip->ip_index = 0; | |
| 3033 ++stack_idx; /* do block 1 again later */ | |
| 3034 } | |
| 3035 /* | |
| 3036 * move the pointers after the current one to the new block | |
| 3037 * If there are none, the new entry will be in the new block. | |
| 3038 */ | |
| 3039 total_moved = pp->pb_count - pb_idx - 1; | |
| 3040 if (total_moved) | |
| 3041 { | |
| 3042 mch_memmove(&pp_new->pb_pointer[0], | |
| 3043 &pp->pb_pointer[pb_idx + 1], | |
| 3044 (size_t)(total_moved) * sizeof(PTR_EN)); | |
| 3045 pp_new->pb_count = total_moved; | |
| 3046 pp->pb_count -= total_moved - 1; | |
| 3047 pp->pb_pointer[pb_idx + 1].pe_bnum = bnum_right; | |
| 3048 pp->pb_pointer[pb_idx + 1].pe_line_count = line_count_right; | |
| 3049 pp->pb_pointer[pb_idx + 1].pe_page_count = page_count_right; | |
| 3050 if (lnum_right) | |
| 3051 pp->pb_pointer[pb_idx + 1].pe_old_lnum = lnum_right; | |
| 3052 } | |
| 3053 else | |
| 3054 { | |
| 3055 pp_new->pb_count = 1; | |
| 3056 pp_new->pb_pointer[0].pe_bnum = bnum_right; | |
| 3057 pp_new->pb_pointer[0].pe_line_count = line_count_right; | |
| 3058 pp_new->pb_pointer[0].pe_page_count = page_count_right; | |
| 3059 pp_new->pb_pointer[0].pe_old_lnum = lnum_right; | |
| 3060 } | |
| 3061 pp->pb_pointer[pb_idx].pe_bnum = bnum_left; | |
| 3062 pp->pb_pointer[pb_idx].pe_line_count = line_count_left; | |
| 3063 pp->pb_pointer[pb_idx].pe_page_count = page_count_left; | |
| 3064 if (lnum_left) | |
| 3065 pp->pb_pointer[pb_idx].pe_old_lnum = lnum_left; | |
| 3066 lnum_left = 0; | |
| 3067 lnum_right = 0; | |
| 3068 | |
| 3069 /* | |
| 3070 * recompute line counts | |
| 3071 */ | |
| 3072 line_count_right = 0; | |
| 3073 for (i = 0; i < (int)pp_new->pb_count; ++i) | |
| 3074 line_count_right += pp_new->pb_pointer[i].pe_line_count; | |
| 3075 line_count_left = 0; | |
| 3076 for (i = 0; i < (int)pp->pb_count; ++i) | |
| 3077 line_count_left += pp->pb_pointer[i].pe_line_count; | |
| 3078 | |
| 3079 bnum_left = hp->bh_bnum; | |
| 3080 bnum_right = hp_new->bh_bnum; | |
| 3081 page_count_left = 1; | |
| 3082 page_count_right = 1; | |
| 3083 mf_put(mfp, hp, TRUE, FALSE); | |
| 3084 mf_put(mfp, hp_new, TRUE, FALSE); | |
| 3085 } | |
| 3086 } | |
| 3087 | |
| 3088 /* | |
| 3089 * Safety check: fallen out of for loop? | |
| 3090 */ | |
| 3091 if (stack_idx < 0) | |
| 3092 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3093 IEMSG(_("E318: Updated too many blocks?")); |
| 7 | 3094 buf->b_ml.ml_stack_top = 0; /* invalidate stack */ |
| 3095 } | |
| 3096 } | |
| 3097 | |
| 3098 #ifdef FEAT_BYTEOFF | |
| 3099 /* The line was inserted below 'lnum' */ | |
| 3100 ml_updatechunk(buf, lnum + 1, (long)len, ML_CHNK_ADDLINE); | |
| 3101 #endif | |
| 3102 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3103 if (netbeans_active()) |
| 7 | 3104 { |
| 3105 if (STRLEN(line) > 0) | |
| 835 | 3106 netbeans_inserted(buf, lnum+1, (colnr_T)0, line, (int)STRLEN(line)); |
| 34 | 3107 netbeans_inserted(buf, lnum+1, (colnr_T)STRLEN(line), |
| 7 | 3108 (char_u *)"\n", 1); |
| 3109 } | |
| 3110 #endif | |
|
8493
caed4b2d305f
commit https://github.com/vim/vim/commit/509ce2a558e7e0c03242e32e844255af52f1c821
Christian Brabandt <cb@256bit.org>
parents:
8422
diff
changeset
|
3111 #ifdef FEAT_JOB_CHANNEL |
|
8422
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3112 if (buf->b_write_to_channel) |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3113 channel_write_new_lines(buf); |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3114 #endif |
|
5d2c84be23b5
commit https://github.com/vim/vim/commit/99ef06296f3c37490511c03786a2c8672e015c56
Christian Brabandt <cb@256bit.org>
parents:
8212
diff
changeset
|
3115 |
| 7 | 3116 return OK; |
| 3117 } | |
| 3118 | |
| 3119 /* | |
| 625 | 3120 * Replace line lnum, with buffering, in current buffer. |
| 7 | 3121 * |
| 720 | 3122 * If "copy" is TRUE, make a copy of the line, otherwise the line has been |
| 7 | 3123 * copied to allocated memory already. |
| 3124 * | |
| 3125 * Check: The caller of this function should probably also call | |
| 3126 * changed_lines(), unless update_screen(NOT_VALID) is used. | |
| 3127 * | |
| 3128 * return FAIL for failure, OK otherwise | |
| 3129 */ | |
| 3130 int | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3131 ml_replace(linenr_T lnum, char_u *line, int copy) |
| 7 | 3132 { |
| 3133 if (line == NULL) /* just checking... */ | |
| 3134 return FAIL; | |
| 3135 | |
| 3136 /* 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.
Bram Moolenaar <bram@vim.org>
parents:
2360
diff
changeset
|
3137 if (curbuf->b_ml.ml_mfp == NULL && open_buffer(FALSE, NULL, 0) == FAIL) |
| 7 | 3138 return FAIL; |
| 3139 | |
| 3140 if (copy && (line = vim_strsave(line)) == NULL) /* allocate memory */ | |
| 3141 return FAIL; | |
| 3142 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3143 if (netbeans_active()) |
| 7 | 3144 { |
| 3145 netbeans_removed(curbuf, lnum, 0, (long)STRLEN(ml_get(lnum))); | |
| 835 | 3146 netbeans_inserted(curbuf, lnum, 0, line, (int)STRLEN(line)); |
| 7 | 3147 } |
| 3148 #endif | |
| 3149 if (curbuf->b_ml.ml_line_lnum != lnum) /* other line buffered */ | |
| 3150 ml_flush_line(curbuf); /* flush it */ | |
| 3151 else if (curbuf->b_ml.ml_flags & ML_LINE_DIRTY) /* same line allocated */ | |
| 3152 vim_free(curbuf->b_ml.ml_line_ptr); /* free it */ | |
| 3153 curbuf->b_ml.ml_line_ptr = line; | |
| 3154 curbuf->b_ml.ml_line_lnum = lnum; | |
| 3155 curbuf->b_ml.ml_flags = (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY; | |
| 3156 | |
| 3157 return OK; | |
| 3158 } | |
| 3159 | |
| 3160 /* | |
|
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patch 8.0.1118: FEAT_WINDOWS adds a lot of #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
11158
diff
changeset
|
3161 * Delete line "lnum" in the current buffer. |
|
68d7bc045dbe
patch 8.0.1118: FEAT_WINDOWS adds a lot of #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
11158
diff
changeset
|
3162 * When "message" is TRUE may give a "No lines in buffer" message. |
| 7 | 3163 * |
| 3164 * Check: The caller of this function should probably also call | |
| 3165 * deleted_lines() after this. | |
| 3166 * | |
| 3167 * return FAIL for failure, OK otherwise | |
| 3168 */ | |
| 3169 int | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3170 ml_delete(linenr_T lnum, int message) |
| 7 | 3171 { |
| 3172 ml_flush_line(curbuf); | |
| 3173 return ml_delete_int(curbuf, lnum, message); | |
| 3174 } | |
| 3175 | |
| 3176 static int | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3177 ml_delete_int(buf_T *buf, linenr_T lnum, int message) |
| 7 | 3178 { |
| 3179 bhdr_T *hp; | |
| 3180 memfile_T *mfp; | |
| 3181 DATA_BL *dp; | |
| 3182 PTR_BL *pp; | |
| 3183 infoptr_T *ip; | |
| 3184 int count; /* number of entries in block */ | |
| 3185 int idx; | |
| 3186 int stack_idx; | |
| 3187 int text_start; | |
| 3188 int line_start; | |
| 3189 long line_size; | |
| 3190 int i; | |
| 3191 | |
| 3192 if (lnum < 1 || lnum > buf->b_ml.ml_line_count) | |
| 3193 return FAIL; | |
| 3194 | |
| 3195 if (lowest_marked && lowest_marked > lnum) | |
| 3196 lowest_marked--; | |
| 3197 | |
| 3198 /* | |
| 3199 * If the file becomes empty the last line is replaced by an empty line. | |
| 3200 */ | |
| 3201 if (buf->b_ml.ml_line_count == 1) /* file becomes empty */ | |
| 3202 { | |
| 3203 if (message | |
| 3204 #ifdef FEAT_NETBEANS_INTG | |
| 3205 && !netbeansSuppressNoLines | |
| 3206 #endif | |
| 3207 ) | |
| 680 | 3208 set_keep_msg((char_u *)_(no_lines_msg), 0); |
| 3209 | |
| 4352 | 3210 /* FEAT_BYTEOFF already handled in there, don't worry 'bout it below */ |
| 7 | 3211 i = ml_replace((linenr_T)1, (char_u *)"", TRUE); |
| 3212 buf->b_ml.ml_flags |= ML_EMPTY; | |
| 3213 | |
| 3214 return i; | |
| 3215 } | |
| 3216 | |
| 3217 /* | |
| 3218 * find the data block containing the line | |
| 3219 * This also fills the stack with the blocks from the root to the data block | |
| 3220 * This also releases any locked block. | |
| 3221 */ | |
| 3222 mfp = buf->b_ml.ml_mfp; | |
| 3223 if (mfp == NULL) | |
| 3224 return FAIL; | |
| 3225 | |
| 3226 if ((hp = ml_find_line(buf, lnum, ML_DELETE)) == NULL) | |
| 3227 return FAIL; | |
| 3228 | |
| 3229 dp = (DATA_BL *)(hp->bh_data); | |
| 3230 /* compute line count before the delete */ | |
| 3231 count = (long)(buf->b_ml.ml_locked_high) | |
| 3232 - (long)(buf->b_ml.ml_locked_low) + 2; | |
| 3233 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3234 | |
| 3235 --buf->b_ml.ml_line_count; | |
| 3236 | |
| 3237 line_start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3238 if (idx == 0) /* first line in block, text at the end */ | |
| 3239 line_size = dp->db_txt_end - line_start; | |
| 3240 else | |
| 3241 line_size = ((dp->db_index[idx - 1]) & DB_INDEX_MASK) - line_start; | |
| 3242 | |
| 3243 #ifdef FEAT_NETBEANS_INTG | |
| 2210 | 3244 if (netbeans_active()) |
| 34 | 3245 netbeans_removed(buf, lnum, 0, (long)line_size); |
| 7 | 3246 #endif |
| 3247 | |
| 3248 /* | |
| 3249 * special case: If there is only one line in the data block it becomes empty. | |
| 3250 * Then we have to remove the entry, pointing to this data block, from the | |
| 3251 * pointer block. If this pointer block also becomes empty, we go up another | |
| 3252 * block, and so on, up to the root if necessary. | |
| 3253 * The line counts in the pointer blocks have already been adjusted by | |
| 3254 * ml_find_line(). | |
| 3255 */ | |
| 3256 if (count == 1) | |
| 3257 { | |
| 3258 mf_free(mfp, hp); /* free the data block */ | |
| 3259 buf->b_ml.ml_locked = NULL; | |
| 3260 | |
| 2823 | 3261 for (stack_idx = buf->b_ml.ml_stack_top - 1; stack_idx >= 0; |
| 3262 --stack_idx) | |
| 7 | 3263 { |
| 3264 buf->b_ml.ml_stack_top = 0; /* stack is invalid when failing */ | |
| 3265 ip = &(buf->b_ml.ml_stack[stack_idx]); | |
| 3266 idx = ip->ip_index; | |
| 3267 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3268 return FAIL; | |
| 3269 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3270 if (pp->pb_id != PTR_ID) | |
| 3271 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3272 IEMSG(_("E317: pointer block id wrong 4")); |
| 7 | 3273 mf_put(mfp, hp, FALSE, FALSE); |
| 3274 return FAIL; | |
| 3275 } | |
| 3276 count = --(pp->pb_count); | |
| 3277 if (count == 0) /* the pointer block becomes empty! */ | |
| 3278 mf_free(mfp, hp); | |
| 3279 else | |
| 3280 { | |
| 3281 if (count != idx) /* move entries after the deleted one */ | |
| 3282 mch_memmove(&pp->pb_pointer[idx], &pp->pb_pointer[idx + 1], | |
| 3283 (size_t)(count - idx) * sizeof(PTR_EN)); | |
| 3284 mf_put(mfp, hp, TRUE, FALSE); | |
| 3285 | |
| 3286 buf->b_ml.ml_stack_top = stack_idx; /* truncate stack */ | |
| 1167 | 3287 /* fix line count for rest of blocks in the stack */ |
| 3288 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3289 { |
| 3290 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); | |
| 3291 buf->b_ml.ml_stack[buf->b_ml.ml_stack_top].ip_high += | |
| 1167 | 3292 buf->b_ml.ml_locked_lineadd; |
| 7 | 3293 } |
| 3294 ++(buf->b_ml.ml_stack_top); | |
| 3295 | |
| 3296 break; | |
| 3297 } | |
| 3298 } | |
| 3299 CHECK(stack_idx < 0, _("deleted block 1?")); | |
| 3300 } | |
| 3301 else | |
| 3302 { | |
| 3303 /* | |
| 3304 * delete the text by moving the next lines forwards | |
| 3305 */ | |
| 3306 text_start = dp->db_txt_start; | |
| 3307 mch_memmove((char *)dp + text_start + line_size, | |
| 3308 (char *)dp + text_start, (size_t)(line_start - text_start)); | |
| 3309 | |
| 3310 /* | |
| 3311 * delete the index by moving the next indexes backwards | |
| 3312 * Adjust the indexes for the text movement. | |
| 3313 */ | |
| 3314 for (i = idx; i < count - 1; ++i) | |
| 3315 dp->db_index[i] = dp->db_index[i + 1] + line_size; | |
| 3316 | |
| 3317 dp->db_free += line_size + INDEX_SIZE; | |
| 3318 dp->db_txt_start += line_size; | |
| 3319 --(dp->db_line_count); | |
| 3320 | |
| 3321 /* | |
| 3322 * mark the block dirty and make sure it is in the file (for recovery) | |
| 3323 */ | |
| 3324 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3325 } | |
| 3326 | |
| 3327 #ifdef FEAT_BYTEOFF | |
| 3328 ml_updatechunk(buf, lnum, line_size, ML_CHNK_DELLINE); | |
| 3329 #endif | |
| 3330 return OK; | |
| 3331 } | |
| 3332 | |
| 3333 /* | |
| 3334 * set the B_MARKED flag for line 'lnum' | |
| 3335 */ | |
| 3336 void | |
|
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parents:
7803
diff
changeset
|
3337 ml_setmarked(linenr_T lnum) |
| 7 | 3338 { |
| 3339 bhdr_T *hp; | |
| 3340 DATA_BL *dp; | |
| 3341 /* invalid line number */ | |
| 3342 if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count | |
| 3343 || curbuf->b_ml.ml_mfp == NULL) | |
| 3344 return; /* give error message? */ | |
| 3345 | |
| 3346 if (lowest_marked == 0 || lowest_marked > lnum) | |
| 3347 lowest_marked = lnum; | |
| 3348 | |
| 3349 /* | |
| 3350 * find the data block containing the line | |
| 3351 * This also fills the stack with the blocks from the root to the data block | |
| 3352 * This also releases any locked block. | |
| 3353 */ | |
| 3354 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3355 return; /* give error message? */ | |
| 3356 | |
| 3357 dp = (DATA_BL *)(hp->bh_data); | |
| 3358 dp->db_index[lnum - curbuf->b_ml.ml_locked_low] |= DB_MARKED; | |
| 3359 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3360 } | |
| 3361 | |
| 3362 /* | |
| 3363 * find the first line with its B_MARKED flag set | |
| 3364 */ | |
| 3365 linenr_T | |
|
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parents:
7803
diff
changeset
|
3366 ml_firstmarked(void) |
| 7 | 3367 { |
| 3368 bhdr_T *hp; | |
| 3369 DATA_BL *dp; | |
| 3370 linenr_T lnum; | |
| 3371 int i; | |
| 3372 | |
| 3373 if (curbuf->b_ml.ml_mfp == NULL) | |
| 3374 return (linenr_T) 0; | |
| 3375 | |
| 3376 /* | |
| 3377 * The search starts with lowest_marked line. This is the last line where | |
| 3378 * a mark was found, adjusted by inserting/deleting lines. | |
| 3379 */ | |
| 3380 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3381 { | |
| 3382 /* | |
| 3383 * Find the data block containing the line. | |
| 3384 * This also fills the stack with the blocks from the root to the data | |
| 3385 * block This also releases any locked block. | |
| 3386 */ | |
| 3387 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3388 return (linenr_T)0; /* give error message? */ | |
| 3389 | |
| 3390 dp = (DATA_BL *)(hp->bh_data); | |
| 3391 | |
| 3392 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3393 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3394 if ((dp->db_index[i]) & DB_MARKED) | |
| 3395 { | |
| 3396 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3397 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3398 lowest_marked = lnum + 1; | |
| 3399 return lnum; | |
| 3400 } | |
| 3401 } | |
| 3402 | |
| 3403 return (linenr_T) 0; | |
| 3404 } | |
| 3405 | |
| 3406 /* | |
| 3407 * clear all DB_MARKED flags | |
| 3408 */ | |
| 3409 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3410 ml_clearmarked(void) |
| 7 | 3411 { |
| 3412 bhdr_T *hp; | |
| 3413 DATA_BL *dp; | |
| 3414 linenr_T lnum; | |
| 3415 int i; | |
| 3416 | |
| 3417 if (curbuf->b_ml.ml_mfp == NULL) /* nothing to do */ | |
| 3418 return; | |
| 3419 | |
| 3420 /* | |
| 3421 * The search starts with line lowest_marked. | |
| 3422 */ | |
| 3423 for (lnum = lowest_marked; lnum <= curbuf->b_ml.ml_line_count; ) | |
| 3424 { | |
| 3425 /* | |
| 3426 * Find the data block containing the line. | |
| 3427 * This also fills the stack with the blocks from the root to the data | |
| 3428 * block and releases any locked block. | |
| 3429 */ | |
| 3430 if ((hp = ml_find_line(curbuf, lnum, ML_FIND)) == NULL) | |
| 3431 return; /* give error message? */ | |
| 3432 | |
| 3433 dp = (DATA_BL *)(hp->bh_data); | |
| 3434 | |
| 3435 for (i = lnum - curbuf->b_ml.ml_locked_low; | |
| 3436 lnum <= curbuf->b_ml.ml_locked_high; ++i, ++lnum) | |
| 3437 if ((dp->db_index[i]) & DB_MARKED) | |
| 3438 { | |
| 3439 (dp->db_index[i]) &= DB_INDEX_MASK; | |
| 3440 curbuf->b_ml.ml_flags |= ML_LOCKED_DIRTY; | |
| 3441 } | |
| 3442 } | |
| 3443 | |
| 3444 lowest_marked = 0; | |
| 3445 return; | |
| 3446 } | |
| 3447 | |
| 3448 /* | |
| 3449 * flush ml_line if necessary | |
| 3450 */ | |
| 3451 static void | |
|
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parents:
7803
diff
changeset
|
3452 ml_flush_line(buf_T *buf) |
| 7 | 3453 { |
| 3454 bhdr_T *hp; | |
| 3455 DATA_BL *dp; | |
| 3456 linenr_T lnum; | |
| 3457 char_u *new_line; | |
| 3458 char_u *old_line; | |
| 3459 colnr_T new_len; | |
| 3460 int old_len; | |
| 3461 int extra; | |
| 3462 int idx; | |
| 3463 int start; | |
| 3464 int count; | |
| 3465 int i; | |
|
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diff
changeset
|
3466 static int entered = FALSE; |
| 7 | 3467 |
| 3468 if (buf->b_ml.ml_line_lnum == 0 || buf->b_ml.ml_mfp == NULL) | |
| 3469 return; /* nothing to do */ | |
| 3470 | |
| 3471 if (buf->b_ml.ml_flags & ML_LINE_DIRTY) | |
| 3472 { | |
|
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diff
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|
3473 /* This code doesn't work recursively, but Netbeans may call back here |
|
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diff
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|
3474 * when obtaining the cursor position. */ |
|
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diff
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|
3475 if (entered) |
|
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diff
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|
3476 return; |
|
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diff
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|
3477 entered = TRUE; |
|
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diff
changeset
|
3478 |
| 7 | 3479 lnum = buf->b_ml.ml_line_lnum; |
| 3480 new_line = buf->b_ml.ml_line_ptr; | |
| 3481 | |
| 3482 hp = ml_find_line(buf, lnum, ML_FIND); | |
| 3483 if (hp == NULL) | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3484 IEMSGN(_("E320: Cannot find line %ld"), lnum); |
| 7 | 3485 else |
| 3486 { | |
| 3487 dp = (DATA_BL *)(hp->bh_data); | |
| 3488 idx = lnum - buf->b_ml.ml_locked_low; | |
| 3489 start = ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 3490 old_line = (char_u *)dp + start; | |
| 3491 if (idx == 0) /* line is last in block */ | |
| 3492 old_len = dp->db_txt_end - start; | |
| 3493 else /* text of previous line follows */ | |
| 3494 old_len = (dp->db_index[idx - 1] & DB_INDEX_MASK) - start; | |
| 3495 new_len = (colnr_T)STRLEN(new_line) + 1; | |
| 3496 extra = new_len - old_len; /* negative if lines gets smaller */ | |
| 3497 | |
| 3498 /* | |
| 3499 * if new line fits in data block, replace directly | |
| 3500 */ | |
| 3501 if ((int)dp->db_free >= extra) | |
| 3502 { | |
| 3503 /* if the length changes and there are following lines */ | |
| 3504 count = buf->b_ml.ml_locked_high - buf->b_ml.ml_locked_low + 1; | |
| 3505 if (extra != 0 && idx < count - 1) | |
| 3506 { | |
| 3507 /* move text of following lines */ | |
| 3508 mch_memmove((char *)dp + dp->db_txt_start - extra, | |
| 3509 (char *)dp + dp->db_txt_start, | |
| 3510 (size_t)(start - dp->db_txt_start)); | |
| 3511 | |
| 3512 /* adjust pointers of this and following lines */ | |
| 3513 for (i = idx + 1; i < count; ++i) | |
| 3514 dp->db_index[i] -= extra; | |
| 3515 } | |
| 3516 dp->db_index[idx] -= extra; | |
| 3517 | |
| 3518 /* adjust free space */ | |
| 3519 dp->db_free -= extra; | |
| 3520 dp->db_txt_start -= extra; | |
| 3521 | |
| 3522 /* copy new line into the data block */ | |
| 3523 mch_memmove(old_line - extra, new_line, (size_t)new_len); | |
| 3524 buf->b_ml.ml_flags |= (ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3525 #ifdef FEAT_BYTEOFF | |
| 3526 /* The else case is already covered by the insert and delete */ | |
| 3527 ml_updatechunk(buf, lnum, (long)extra, ML_CHNK_UPDLINE); | |
| 3528 #endif | |
| 3529 } | |
| 3530 else | |
| 3531 { | |
| 3532 /* | |
| 3533 * Cannot do it in one data block: Delete and append. | |
| 3534 * Append first, because ml_delete_int() cannot delete the | |
| 3535 * last line in a buffer, which causes trouble for a buffer | |
| 3536 * that has only one line. | |
| 3537 * Don't forget to copy the mark! | |
| 3538 */ | |
| 3539 /* How about handling errors??? */ | |
| 3540 (void)ml_append_int(buf, lnum, new_line, new_len, FALSE, | |
| 3541 (dp->db_index[idx] & DB_MARKED)); | |
| 3542 (void)ml_delete_int(buf, lnum, FALSE); | |
| 3543 } | |
| 3544 } | |
| 3545 vim_free(new_line); | |
|
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diff
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|
3546 |
|
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diff
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|
3547 entered = FALSE; |
| 7 | 3548 } |
| 3549 | |
| 3550 buf->b_ml.ml_line_lnum = 0; | |
| 3551 } | |
| 3552 | |
| 3553 /* | |
| 3554 * create a new, empty, data block | |
| 3555 */ | |
| 3556 static bhdr_T * | |
|
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parents:
7803
diff
changeset
|
3557 ml_new_data(memfile_T *mfp, int negative, int page_count) |
| 7 | 3558 { |
| 3559 bhdr_T *hp; | |
| 3560 DATA_BL *dp; | |
| 3561 | |
| 3562 if ((hp = mf_new(mfp, negative, page_count)) == NULL) | |
| 3563 return NULL; | |
| 3564 | |
| 3565 dp = (DATA_BL *)(hp->bh_data); | |
| 3566 dp->db_id = DATA_ID; | |
| 3567 dp->db_txt_start = dp->db_txt_end = page_count * mfp->mf_page_size; | |
| 3568 dp->db_free = dp->db_txt_start - HEADER_SIZE; | |
| 3569 dp->db_line_count = 0; | |
| 3570 | |
| 3571 return hp; | |
| 3572 } | |
| 3573 | |
| 3574 /* | |
| 3575 * create a new, empty, pointer block | |
| 3576 */ | |
| 3577 static bhdr_T * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3578 ml_new_ptr(memfile_T *mfp) |
| 7 | 3579 { |
| 3580 bhdr_T *hp; | |
| 3581 PTR_BL *pp; | |
| 3582 | |
| 3583 if ((hp = mf_new(mfp, FALSE, 1)) == NULL) | |
| 3584 return NULL; | |
| 3585 | |
| 3586 pp = (PTR_BL *)(hp->bh_data); | |
| 3587 pp->pb_id = PTR_ID; | |
| 3588 pp->pb_count = 0; | |
|
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Bram Moolenaar <bram@vim.org>
parents:
2221
diff
changeset
|
3589 pp->pb_count_max = (short_u)((mfp->mf_page_size - sizeof(PTR_BL)) |
|
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parents:
2221
diff
changeset
|
3590 / sizeof(PTR_EN) + 1); |
| 7 | 3591 |
| 3592 return hp; | |
| 3593 } | |
| 3594 | |
| 3595 /* | |
| 3596 * lookup line 'lnum' in a memline | |
| 3597 * | |
| 3598 * action: if ML_DELETE or ML_INSERT the line count is updated while searching | |
| 3599 * if ML_FLUSH only flush a locked block | |
| 3600 * if ML_FIND just find the line | |
| 3601 * | |
| 3602 * If the block was found it is locked and put in ml_locked. | |
| 3603 * The stack is updated to lead to the locked block. The ip_high field in | |
| 3604 * the stack is updated to reflect the last line in the block AFTER the | |
| 3605 * insert or delete, also if the pointer block has not been updated yet. But | |
| 1167 | 3606 * if ml_locked != NULL ml_locked_lineadd must be added to ip_high. |
| 7 | 3607 * |
| 3608 * return: NULL for failure, pointer to block header otherwise | |
| 3609 */ | |
| 3610 static bhdr_T * | |
|
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3611 ml_find_line(buf_T *buf, linenr_T lnum, int action) |
| 7 | 3612 { |
| 3613 DATA_BL *dp; | |
| 3614 PTR_BL *pp; | |
| 3615 infoptr_T *ip; | |
| 3616 bhdr_T *hp; | |
| 3617 memfile_T *mfp; | |
| 3618 linenr_T t; | |
| 3619 blocknr_T bnum, bnum2; | |
| 3620 int dirty; | |
| 3621 linenr_T low, high; | |
| 3622 int top; | |
| 3623 int page_count; | |
| 3624 int idx; | |
| 3625 | |
| 3626 mfp = buf->b_ml.ml_mfp; | |
| 3627 | |
| 3628 /* | |
| 3629 * If there is a locked block check if the wanted line is in it. | |
| 3630 * If not, flush and release the locked block. | |
| 3631 * Don't do this for ML_INSERT_SAME, because the stack need to be updated. | |
| 3632 * Don't do this for ML_FLUSH, because we want to flush the locked block. | |
| 1066 | 3633 * Don't do this when 'swapfile' is reset, we want to load all the blocks. |
| 7 | 3634 */ |
| 3635 if (buf->b_ml.ml_locked) | |
| 3636 { | |
| 1066 | 3637 if (ML_SIMPLE(action) |
| 3638 && buf->b_ml.ml_locked_low <= lnum | |
| 3639 && buf->b_ml.ml_locked_high >= lnum | |
| 3640 && !mf_dont_release) | |
| 7 | 3641 { |
| 1066 | 3642 /* remember to update pointer blocks and stack later */ |
| 7 | 3643 if (action == ML_INSERT) |
| 3644 { | |
| 3645 ++(buf->b_ml.ml_locked_lineadd); | |
| 3646 ++(buf->b_ml.ml_locked_high); | |
| 3647 } | |
| 3648 else if (action == ML_DELETE) | |
| 3649 { | |
| 3650 --(buf->b_ml.ml_locked_lineadd); | |
| 3651 --(buf->b_ml.ml_locked_high); | |
| 3652 } | |
| 3653 return (buf->b_ml.ml_locked); | |
| 3654 } | |
| 3655 | |
| 3656 mf_put(mfp, buf->b_ml.ml_locked, buf->b_ml.ml_flags & ML_LOCKED_DIRTY, | |
| 3657 buf->b_ml.ml_flags & ML_LOCKED_POS); | |
| 3658 buf->b_ml.ml_locked = NULL; | |
| 3659 | |
| 1167 | 3660 /* |
| 3661 * If lines have been added or deleted in the locked block, need to | |
| 3662 * update the line count in pointer blocks. | |
| 3663 */ | |
| 3664 if (buf->b_ml.ml_locked_lineadd != 0) | |
| 7 | 3665 ml_lineadd(buf, buf->b_ml.ml_locked_lineadd); |
| 3666 } | |
| 3667 | |
| 3668 if (action == ML_FLUSH) /* nothing else to do */ | |
| 3669 return NULL; | |
| 3670 | |
| 3671 bnum = 1; /* start at the root of the tree */ | |
| 3672 page_count = 1; | |
| 3673 low = 1; | |
| 3674 high = buf->b_ml.ml_line_count; | |
| 3675 | |
| 3676 if (action == ML_FIND) /* first try stack entries */ | |
| 3677 { | |
| 3678 for (top = buf->b_ml.ml_stack_top - 1; top >= 0; --top) | |
| 3679 { | |
| 3680 ip = &(buf->b_ml.ml_stack[top]); | |
| 3681 if (ip->ip_low <= lnum && ip->ip_high >= lnum) | |
| 3682 { | |
| 3683 bnum = ip->ip_bnum; | |
| 3684 low = ip->ip_low; | |
| 3685 high = ip->ip_high; | |
| 3686 buf->b_ml.ml_stack_top = top; /* truncate stack at prev entry */ | |
| 3687 break; | |
| 3688 } | |
| 3689 } | |
| 3690 if (top < 0) | |
| 3691 buf->b_ml.ml_stack_top = 0; /* not found, start at the root */ | |
| 3692 } | |
| 3693 else /* ML_DELETE or ML_INSERT */ | |
| 3694 buf->b_ml.ml_stack_top = 0; /* start at the root */ | |
| 3695 | |
| 3696 /* | |
| 3697 * search downwards in the tree until a data block is found | |
| 3698 */ | |
| 3699 for (;;) | |
| 3700 { | |
| 3701 if ((hp = mf_get(mfp, bnum, page_count)) == NULL) | |
| 3702 goto error_noblock; | |
| 3703 | |
| 3704 /* | |
| 3705 * update high for insert/delete | |
| 3706 */ | |
| 3707 if (action == ML_INSERT) | |
| 3708 ++high; | |
| 3709 else if (action == ML_DELETE) | |
| 3710 --high; | |
| 3711 | |
| 3712 dp = (DATA_BL *)(hp->bh_data); | |
| 3713 if (dp->db_id == DATA_ID) /* data block */ | |
| 3714 { | |
| 3715 buf->b_ml.ml_locked = hp; | |
| 3716 buf->b_ml.ml_locked_low = low; | |
| 3717 buf->b_ml.ml_locked_high = high; | |
| 3718 buf->b_ml.ml_locked_lineadd = 0; | |
| 3719 buf->b_ml.ml_flags &= ~(ML_LOCKED_DIRTY | ML_LOCKED_POS); | |
| 3720 return hp; | |
| 3721 } | |
| 3722 | |
| 3723 pp = (PTR_BL *)(dp); /* must be pointer block */ | |
| 3724 if (pp->pb_id != PTR_ID) | |
| 3725 { | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3726 IEMSG(_("E317: pointer block id wrong")); |
| 7 | 3727 goto error_block; |
| 3728 } | |
| 3729 | |
| 3730 if ((top = ml_add_stack(buf)) < 0) /* add new entry to stack */ | |
| 3731 goto error_block; | |
| 3732 ip = &(buf->b_ml.ml_stack[top]); | |
| 3733 ip->ip_bnum = bnum; | |
| 3734 ip->ip_low = low; | |
| 3735 ip->ip_high = high; | |
| 3736 ip->ip_index = -1; /* index not known yet */ | |
| 3737 | |
| 3738 dirty = FALSE; | |
| 3739 for (idx = 0; idx < (int)pp->pb_count; ++idx) | |
| 3740 { | |
| 3741 t = pp->pb_pointer[idx].pe_line_count; | |
| 3742 CHECK(t == 0, _("pe_line_count is zero")); | |
| 3743 if ((low += t) > lnum) | |
| 3744 { | |
| 3745 ip->ip_index = idx; | |
| 3746 bnum = pp->pb_pointer[idx].pe_bnum; | |
| 3747 page_count = pp->pb_pointer[idx].pe_page_count; | |
| 3748 high = low - 1; | |
| 3749 low -= t; | |
| 3750 | |
| 3751 /* | |
| 3752 * a negative block number may have been changed | |
| 3753 */ | |
| 3754 if (bnum < 0) | |
| 3755 { | |
| 3756 bnum2 = mf_trans_del(mfp, bnum); | |
| 3757 if (bnum != bnum2) | |
| 3758 { | |
| 3759 bnum = bnum2; | |
| 3760 pp->pb_pointer[idx].pe_bnum = bnum; | |
| 3761 dirty = TRUE; | |
| 3762 } | |
| 3763 } | |
| 3764 | |
| 3765 break; | |
| 3766 } | |
| 3767 } | |
| 3768 if (idx >= (int)pp->pb_count) /* past the end: something wrong! */ | |
| 3769 { | |
| 3770 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
|
3771 IEMSGN(_("E322: line number out of range: %ld past the end"), |
| 7 | 3772 lnum - buf->b_ml.ml_line_count); |
| 3773 | |
| 3774 else | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
3775 IEMSGN(_("E323: line count wrong in block %ld"), bnum); |
| 7 | 3776 goto error_block; |
| 3777 } | |
| 3778 if (action == ML_DELETE) | |
| 3779 { | |
| 3780 pp->pb_pointer[idx].pe_line_count--; | |
| 3781 dirty = TRUE; | |
| 3782 } | |
| 3783 else if (action == ML_INSERT) | |
| 3784 { | |
| 3785 pp->pb_pointer[idx].pe_line_count++; | |
| 3786 dirty = TRUE; | |
| 3787 } | |
| 3788 mf_put(mfp, hp, dirty, FALSE); | |
| 3789 } | |
| 3790 | |
| 3791 error_block: | |
| 3792 mf_put(mfp, hp, FALSE, FALSE); | |
| 3793 error_noblock: | |
| 2267 | 3794 /* |
| 3795 * If action is ML_DELETE or ML_INSERT we have to correct the tree for | |
| 3796 * the incremented/decremented line counts, because there won't be a line | |
| 3797 * inserted/deleted after all. | |
| 3798 */ | |
| 7 | 3799 if (action == ML_DELETE) |
| 3800 ml_lineadd(buf, 1); | |
| 3801 else if (action == ML_INSERT) | |
| 3802 ml_lineadd(buf, -1); | |
| 3803 buf->b_ml.ml_stack_top = 0; | |
| 3804 return NULL; | |
| 3805 } | |
| 3806 | |
| 3807 /* | |
| 3808 * add an entry to the info pointer stack | |
| 3809 * | |
| 3810 * return -1 for failure, number of the new entry otherwise | |
| 3811 */ | |
| 3812 static int | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3813 ml_add_stack(buf_T *buf) |
| 7 | 3814 { |
| 3815 int top; | |
| 3816 infoptr_T *newstack; | |
| 3817 | |
| 3818 top = buf->b_ml.ml_stack_top; | |
| 3819 | |
| 2267 | 3820 /* may have to increase the stack size */ |
| 7 | 3821 if (top == buf->b_ml.ml_stack_size) |
| 3822 { | |
| 2267 | 3823 CHECK(top > 0, _("Stack size increases")); /* more than 5 levels??? */ |
| 7 | 3824 |
| 3825 newstack = (infoptr_T *)alloc((unsigned)sizeof(infoptr_T) * | |
| 3826 (buf->b_ml.ml_stack_size + STACK_INCR)); | |
| 3827 if (newstack == NULL) | |
| 3828 return -1; | |
| 6989 | 3829 if (top > 0) |
| 3830 mch_memmove(newstack, buf->b_ml.ml_stack, | |
| 1624 | 3831 (size_t)top * sizeof(infoptr_T)); |
| 7 | 3832 vim_free(buf->b_ml.ml_stack); |
| 3833 buf->b_ml.ml_stack = newstack; | |
| 3834 buf->b_ml.ml_stack_size += STACK_INCR; | |
| 3835 } | |
| 3836 | |
| 3837 buf->b_ml.ml_stack_top++; | |
| 3838 return top; | |
| 3839 } | |
| 3840 | |
| 3841 /* | |
| 3842 * Update the pointer blocks on the stack for inserted/deleted lines. | |
| 3843 * The stack itself is also updated. | |
| 3844 * | |
| 3845 * When a insert/delete line action fails, the line is not inserted/deleted, | |
| 3846 * but the pointer blocks have already been updated. That is fixed here by | |
| 3847 * walking through the stack. | |
| 3848 * | |
| 3849 * Count is the number of lines added, negative if lines have been deleted. | |
| 3850 */ | |
| 3851 static void | |
|
7827
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commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3852 ml_lineadd(buf_T *buf, int count) |
| 7 | 3853 { |
| 3854 int idx; | |
| 3855 infoptr_T *ip; | |
| 3856 PTR_BL *pp; | |
| 3857 memfile_T *mfp = buf->b_ml.ml_mfp; | |
| 3858 bhdr_T *hp; | |
| 3859 | |
| 3860 for (idx = buf->b_ml.ml_stack_top - 1; idx >= 0; --idx) | |
| 3861 { | |
| 3862 ip = &(buf->b_ml.ml_stack[idx]); | |
| 3863 if ((hp = mf_get(mfp, ip->ip_bnum, 1)) == NULL) | |
| 3864 break; | |
| 3865 pp = (PTR_BL *)(hp->bh_data); /* must be pointer block */ | |
| 3866 if (pp->pb_id != PTR_ID) | |
| 3867 { | |
| 3868 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
|
3869 IEMSG(_("E317: pointer block id wrong 2")); |
| 7 | 3870 break; |
| 3871 } | |
| 3872 pp->pb_pointer[ip->ip_index].pe_line_count += count; | |
| 3873 ip->ip_high += count; | |
| 3874 mf_put(mfp, hp, TRUE, FALSE); | |
| 3875 } | |
| 3876 } | |
| 3877 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3878 #if defined(HAVE_READLINK) || defined(PROTO) |
| 594 | 3879 /* |
| 3880 * Resolve a symlink in the last component of a file name. | |
| 3881 * Note that f_resolve() does it for every part of the path, we don't do that | |
| 3882 * here. | |
| 3883 * If it worked returns OK and the resolved link in "buf[MAXPATHL]". | |
| 3884 * Otherwise returns FAIL. | |
| 3885 */ | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
3886 int |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3887 resolve_symlink(char_u *fname, char_u *buf) |
| 594 | 3888 { |
| 3889 char_u tmp[MAXPATHL]; | |
| 3890 int ret; | |
| 3891 int depth = 0; | |
| 3892 | |
| 3893 if (fname == NULL) | |
| 3894 return FAIL; | |
| 3895 | |
| 3896 /* Put the result so far in tmp[], starting with the original name. */ | |
| 3897 vim_strncpy(tmp, fname, MAXPATHL - 1); | |
| 3898 | |
| 3899 for (;;) | |
| 3900 { | |
| 3901 /* Limit symlink depth to 100, catch recursive loops. */ | |
| 3902 if (++depth == 100) | |
| 3903 { | |
| 3904 EMSG2(_("E773: Symlink loop for \"%s\""), fname); | |
| 3905 return FAIL; | |
| 3906 } | |
| 3907 | |
| 3908 ret = readlink((char *)tmp, (char *)buf, MAXPATHL - 1); | |
| 3909 if (ret <= 0) | |
| 3910 { | |
| 619 | 3911 if (errno == EINVAL || errno == ENOENT) |
| 594 | 3912 { |
| 619 | 3913 /* Found non-symlink or not existing file, stop here. |
| 1855 | 3914 * When at the first level use the unmodified name, skip the |
| 594 | 3915 * call to vim_FullName(). */ |
| 3916 if (depth == 1) | |
| 3917 return FAIL; | |
| 3918 | |
| 3919 /* Use the resolved name in tmp[]. */ | |
| 3920 break; | |
| 3921 } | |
| 3922 | |
| 3923 /* There must be some error reading links, use original name. */ | |
| 3924 return FAIL; | |
| 3925 } | |
| 3926 buf[ret] = NUL; | |
| 3927 | |
| 3928 /* | |
| 3929 * Check whether the symlink is relative or absolute. | |
| 3930 * If it's relative, build a new path based on the directory | |
| 3931 * portion of the filename (if any) and the path the symlink | |
| 3932 * points to. | |
| 3933 */ | |
| 3934 if (mch_isFullName(buf)) | |
| 3935 STRCPY(tmp, buf); | |
| 3936 else | |
| 3937 { | |
| 3938 char_u *tail; | |
| 3939 | |
| 3940 tail = gettail(tmp); | |
| 3941 if (STRLEN(tail) + STRLEN(buf) >= MAXPATHL) | |
| 3942 return FAIL; | |
| 3943 STRCPY(tail, buf); | |
| 3944 } | |
| 3945 } | |
| 3946 | |
| 3947 /* | |
| 3948 * Try to resolve the full name of the file so that the swapfile name will | |
| 3949 * be consistent even when opening a relative symlink from different | |
| 3950 * working directories. | |
| 3951 */ | |
| 3952 return vim_FullName(tmp, buf, MAXPATHL, TRUE); | |
| 3953 } | |
| 3954 #endif | |
| 3955 | |
| 7 | 3956 /* |
| 460 | 3957 * Make swap file name out of the file name and a directory name. |
| 3958 * Returns pointer to allocated memory or NULL. | |
| 7 | 3959 */ |
| 460 | 3960 char_u * |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3961 makeswapname( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3962 char_u *fname, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3963 char_u *ffname UNUSED, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3964 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
3965 char_u *dir_name) |
| 7 | 3966 { |
| 3967 char_u *r, *s; | |
|
2145
de0e7ca61893
updated for version 7.2.427
Bram Moolenaar <bram@zimbu.org>
parents:
2108
diff
changeset
|
3968 char_u *fname_res = fname; |
| 594 | 3969 #ifdef HAVE_READLINK |
| 3970 char_u fname_buf[MAXPATHL]; | |
| 3971 #endif | |
| 7 | 3972 |
| 3973 #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
|
3974 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
|
3975 |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3976 s = dir_name + len; |
|
d513b653f5d0
patch 8.0.0337: invalid memory access in :recover command
Christian Brabandt <cb@256bit.org>
parents:
10889
diff
changeset
|
3977 if (after_pathsep(dir_name, s) && len > 1 && s[-1] == s[-2]) |
| 7 | 3978 { /* Ends with '//', Use Full path */ |
| 3979 r = NULL; | |
| 460 | 3980 if ((s = make_percent_swname(dir_name, fname)) != NULL) |
| 7 | 3981 { |
| 3982 r = modname(s, (char_u *)".swp", FALSE); | |
| 3983 vim_free(s); | |
| 3984 } | |
| 3985 return r; | |
| 3986 } | |
| 3987 #endif | |
| 3988 | |
| 594 | 3989 #ifdef HAVE_READLINK |
| 3990 /* Expand symlink in the file name, so that we put the swap file with the | |
| 3991 * actual file instead of with the symlink. */ | |
| 3992 if (resolve_symlink(fname, fname_buf) == OK) | |
| 3993 fname_res = fname_buf; | |
| 3994 #endif | |
| 3995 | |
| 7 | 3996 r = buf_modname( |
| 3997 (buf->b_p_sn || buf->b_shortname), | |
| 594 | 3998 fname_res, |
| 7 | 3999 (char_u *) |
| 2823 | 4000 #if defined(VMS) |
| 7 | 4001 "_swp", |
| 4002 #else | |
| 4003 ".swp", | |
| 4004 #endif | |
| 4005 /* 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
|
4006 dir_name[0] == '.' && dir_name[1] == NUL); |
| 7 | 4007 if (r == NULL) /* out of memory */ |
| 4008 return NULL; | |
| 4009 | |
| 4010 s = get_file_in_dir(r, dir_name); | |
| 4011 vim_free(r); | |
| 4012 return s; | |
| 4013 } | |
| 4014 | |
| 4015 /* | |
| 4016 * Get file name to use for swap file or backup file. | |
| 4017 * Use the name of the edited file "fname" and an entry in the 'dir' or 'bdir' | |
| 4018 * option "dname". | |
| 4019 * - If "dname" is ".", return "fname" (swap file in dir of file). | |
| 4020 * - If "dname" starts with "./", insert "dname" in "fname" (swap file | |
| 4021 * relative to dir of file). | |
| 4022 * - Otherwise, prepend "dname" to the tail of "fname" (swap file in specific | |
| 4023 * dir). | |
| 4024 * | |
| 4025 * The return value is an allocated string and can be NULL. | |
| 4026 */ | |
| 4027 char_u * | |
|
7827
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4028 get_file_in_dir( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
4029 char_u *fname, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4030 char_u *dname) /* don't use "dirname", it is a global for Alpha */ |
| 7 | 4031 { |
| 4032 char_u *t; | |
| 4033 char_u *tail; | |
| 4034 char_u *retval; | |
| 4035 int save_char; | |
| 4036 | |
| 4037 tail = gettail(fname); | |
| 4038 | |
| 4039 if (dname[0] == '.' && dname[1] == NUL) | |
| 4040 retval = vim_strsave(fname); | |
| 4041 else if (dname[0] == '.' && vim_ispathsep(dname[1])) | |
| 4042 { | |
| 4043 if (tail == fname) /* no path before file name */ | |
| 4044 retval = concat_fnames(dname + 2, tail, TRUE); | |
| 4045 else | |
| 4046 { | |
| 4047 save_char = *tail; | |
| 4048 *tail = NUL; | |
| 4049 t = concat_fnames(fname, dname + 2, TRUE); | |
| 4050 *tail = save_char; | |
| 4051 if (t == NULL) /* out of memory */ | |
| 4052 retval = NULL; | |
| 4053 else | |
| 4054 { | |
| 4055 retval = concat_fnames(t, tail, TRUE); | |
| 4056 vim_free(t); | |
| 4057 } | |
| 4058 } | |
| 4059 } | |
| 4060 else | |
| 4061 retval = concat_fnames(dname, tail, TRUE); | |
| 4062 | |
| 5432 | 4063 #ifdef WIN3264 |
| 4064 if (retval != NULL) | |
|
11127
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Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4065 for (t = gettail(retval); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4066 if (*t == ':') |
| 4067 *t = '%'; | |
| 4068 #endif | |
| 4069 | |
| 7 | 4070 return retval; |
| 4071 } | |
| 4072 | |
|
7803
37c929c4a073
commit https://github.com/vim/vim/commit/92b8b2d307e34117f146319872010b0ccc9d2713
Christian Brabandt <cb@256bit.org>
parents:
7410
diff
changeset
|
4073 static void attention_message(buf_T *buf, char_u *fname); |
| 580 | 4074 |
| 4075 /* | |
| 4076 * Print the ATTENTION message: info about an existing swap file. | |
| 4077 */ | |
| 4078 static void | |
|
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41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
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parents:
7803
diff
changeset
|
4079 attention_message( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4080 buf_T *buf, /* buffer being edited */ |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4081 char_u *fname) /* swap file name */ |
| 580 | 4082 { |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4083 stat_T st; |
| 580 | 4084 time_t x, sx; |
| 1001 | 4085 char *p; |
| 580 | 4086 |
| 4087 ++no_wait_return; | |
| 4088 (void)EMSG(_("E325: ATTENTION")); | |
| 4089 MSG_PUTS(_("\nFound a swap file by the name \"")); | |
| 4090 msg_home_replace(fname); | |
| 4091 MSG_PUTS("\"\n"); | |
| 4092 sx = swapfile_info(fname); | |
| 4093 MSG_PUTS(_("While opening file \"")); | |
| 4094 msg_outtrans(buf->b_fname); | |
| 4095 MSG_PUTS("\"\n"); | |
| 4096 if (mch_stat((char *)buf->b_fname, &st) != -1) | |
| 4097 { | |
| 4098 MSG_PUTS(_(" dated: ")); | |
| 4099 x = st.st_mtime; /* Manx C can't do &st.st_mtime */ | |
| 1001 | 4100 p = ctime(&x); /* includes '\n' */ |
| 4101 if (p == NULL) | |
| 4102 MSG_PUTS("(invalid)\n"); | |
| 4103 else | |
| 4104 MSG_PUTS(p); | |
| 580 | 4105 if (sx != 0 && x > sx) |
| 4106 MSG_PUTS(_(" NEWER than swap file!\n")); | |
| 4107 } | |
| 4108 /* Some of these messages are long to allow translation to | |
| 4109 * other languages. */ | |
|
7881
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commit https://github.com/vim/vim/commit/d9ea9069f5ef5b8b9f9e0d0daecdd124e2dcd818
Christian Brabandt <cb@256bit.org>
parents:
7827
diff
changeset
|
4110 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 | 4111 MSG_PUTS(_("(2) An edit session for this file crashed.\n")); |
| 580 | 4112 MSG_PUTS(_(" If this is the case, use \":recover\" or \"vim -r ")); |
| 4113 msg_outtrans(buf->b_fname); | |
| 4114 MSG_PUTS(_("\"\n to recover the changes (see \":help recovery\").\n")); | |
| 4115 MSG_PUTS(_(" If you did this already, delete the swap file \"")); | |
| 4116 msg_outtrans(fname); | |
| 4117 MSG_PUTS(_("\"\n to avoid this message.\n")); | |
| 4118 cmdline_row = msg_row; | |
| 4119 --no_wait_return; | |
| 4120 } | |
| 4121 | |
|
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69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4122 #if defined(FEAT_EVAL) |
| 580 | 4123 /* |
| 4124 * Trigger the SwapExists autocommands. | |
| 4125 * Returns a value for equivalent to do_dialog() (see below): | |
| 4126 * 0: still need to ask for a choice | |
| 4127 * 1: open read-only | |
| 4128 * 2: edit anyway | |
| 4129 * 3: recover | |
| 4130 * 4: delete it | |
| 4131 * 5: quit | |
| 4132 * 6: abort | |
| 4133 */ | |
| 4134 static int | |
|
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parents:
7803
diff
changeset
|
4135 do_swapexists(buf_T *buf, char_u *fname) |
| 580 | 4136 { |
| 4137 set_vim_var_string(VV_SWAPNAME, fname, -1); | |
| 4138 set_vim_var_string(VV_SWAPCHOICE, NULL, -1); | |
| 4139 | |
| 4140 /* Trigger SwapExists autocommands with <afile> set to the file being | |
| 1856 | 4141 * edited. Disallow changing directory here. */ |
| 4142 ++allbuf_lock; | |
| 580 | 4143 apply_autocmds(EVENT_SWAPEXISTS, buf->b_fname, NULL, FALSE, NULL); |
| 1856 | 4144 --allbuf_lock; |
| 580 | 4145 |
| 4146 set_vim_var_string(VV_SWAPNAME, NULL, -1); | |
| 4147 | |
| 4148 switch (*get_vim_var_str(VV_SWAPCHOICE)) | |
| 4149 { | |
| 4150 case 'o': return 1; | |
| 4151 case 'e': return 2; | |
| 4152 case 'r': return 3; | |
| 4153 case 'd': return 4; | |
| 4154 case 'q': return 5; | |
| 4155 case 'a': return 6; | |
| 4156 } | |
| 4157 | |
| 4158 return 0; | |
| 4159 } | |
| 4160 #endif | |
| 4161 | |
| 7 | 4162 /* |
| 4163 * Find out what name to use for the swap file for buffer 'buf'. | |
| 4164 * | |
| 4165 * Several names are tried to find one that does not exist | |
| 460 | 4166 * Returns the name in allocated memory or NULL. |
| 3158 | 4167 * When out of memory "dirp" is set to NULL. |
| 7 | 4168 * |
| 4169 * 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
|
4170 * not being able to open the swap or undo file |
| 1856 | 4171 * Note: May trigger SwapExists autocmd, pointers may change! |
| 7 | 4172 */ |
| 4173 static char_u * | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4174 findswapname( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4175 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4176 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
|
4177 char_u *old_fname) /* don't give warning for this file name */ |
| 7 | 4178 { |
| 4179 char_u *fname; | |
| 4180 int n; | |
| 4181 char_u *dir_name; | |
| 4182 #ifdef AMIGA | |
| 4183 BPTR fh; | |
| 4184 #endif | |
| 4185 int r; | |
| 5432 | 4186 char_u *buf_fname = buf->b_fname; |
| 7 | 4187 |
|
8212
05b88224cea1
commit https://github.com/vim/vim/commit/48e330aff911be1c798c88a973af6437a8141fce
Christian Brabandt <cb@256bit.org>
parents:
7961
diff
changeset
|
4188 #if !defined(UNIX) |
| 7 | 4189 # define CREATE_DUMMY_FILE |
| 4190 FILE *dummyfd = NULL; | |
| 4191 | |
| 5432 | 4192 # ifdef WIN3264 |
| 4193 if (buf_fname != NULL && !mch_isFullName(buf_fname) | |
| 4194 && vim_strchr(gettail(buf_fname), ':')) | |
| 4195 { | |
| 4196 char_u *t; | |
| 4197 | |
| 4198 buf_fname = vim_strsave(buf_fname); | |
| 4199 if (buf_fname == NULL) | |
| 4200 buf_fname = buf->b_fname; | |
| 4201 else | |
|
11127
506f5d8b7d8b
patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10996
diff
changeset
|
4202 for (t = gettail(buf_fname); *t != NUL; MB_PTR_ADV(t)) |
| 5432 | 4203 if (*t == ':') |
| 4204 *t = '%'; | |
| 4205 } | |
| 4206 # endif | |
| 4207 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4208 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4209 * 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
|
4210 * 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
|
4211 * "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
|
4212 * 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
|
4213 * 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
|
4214 */ |
| 5432 | 4215 if (!(buf->b_p_sn || buf->b_shortname) && buf_fname != NULL |
| 4216 && mch_getperm(buf_fname) < 0) | |
| 4217 dummyfd = mch_fopen((char *)buf_fname, "w"); | |
| 7 | 4218 #endif |
| 4219 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4220 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4221 * 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
|
4222 * 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
|
4223 */ |
| 7 | 4224 dir_name = alloc((unsigned)STRLEN(*dirp) + 1); |
| 3158 | 4225 if (dir_name == NULL) |
| 4226 *dirp = NULL; | |
| 4227 else | |
| 7 | 4228 (void)copy_option_part(dirp, dir_name, 31000, ","); |
| 4229 | |
|
2214
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4230 /* |
|
f8222d1f9a73
Included patch for persistent undo. Lots of changes and added test.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
4231 * 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
|
4232 */ |
| 7 | 4233 if (dir_name == NULL) /* out of memory */ |
| 4234 fname = NULL; | |
| 4235 else | |
| 5432 | 4236 fname = makeswapname(buf_fname, buf->b_ffname, buf, dir_name); |
| 7 | 4237 |
| 4238 for (;;) | |
| 4239 { | |
| 4240 if (fname == NULL) /* must be out of memory */ | |
| 4241 break; | |
| 4242 if ((n = (int)STRLEN(fname)) == 0) /* safety check */ | |
| 4243 { | |
|
13244
ac42c4b11dbc
patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents:
12975
diff
changeset
|
4244 VIM_CLEAR(fname); |
| 7 | 4245 break; |
| 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 /* |
| 4249 * Some systems have a MS-DOS compatible filesystem that use 8.3 character | |
| 4250 * file names. If this is the first try and the swap file name does not fit in | |
| 4251 * 8.3, detect if this is the case, set shortname and try again. | |
| 4252 */ | |
| 4253 if (fname[n - 2] == 'w' && fname[n - 1] == 'p' | |
| 4254 && !(buf->b_p_sn || buf->b_shortname)) | |
| 4255 { | |
| 4256 char_u *tail; | |
| 4257 char_u *fname2; | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4258 stat_T s1, s2; |
| 7 | 4259 int f1, f2; |
| 4260 int created1 = FALSE, created2 = FALSE; | |
| 4261 int same = FALSE; | |
| 4262 | |
| 4263 /* | |
| 4264 * Check if swapfile name does not fit in 8.3: | |
| 4265 * It either contains two dots, is longer than 8 chars, or starts | |
| 4266 * with a dot. | |
| 4267 */ | |
| 5432 | 4268 tail = gettail(buf_fname); |
| 7 | 4269 if ( vim_strchr(tail, '.') != NULL |
| 4270 || STRLEN(tail) > (size_t)8 | |
| 4271 || *gettail(fname) == '.') | |
| 4272 { | |
| 4273 fname2 = alloc(n + 2); | |
| 4274 if (fname2 != NULL) | |
| 4275 { | |
| 4276 STRCPY(fname2, fname); | |
| 4277 /* if fname == "xx.xx.swp", fname2 = "xx.xx.swx" | |
| 4278 * if fname == ".xx.swp", fname2 = ".xx.swpx" | |
| 4279 * if fname == "123456789.swp", fname2 = "12345678x.swp" | |
| 4280 */ | |
| 4281 if (vim_strchr(tail, '.') != NULL) | |
| 4282 fname2[n - 1] = 'x'; | |
| 4283 else if (*gettail(fname) == '.') | |
| 4284 { | |
| 4285 fname2[n] = 'x'; | |
| 4286 fname2[n + 1] = NUL; | |
| 4287 } | |
| 4288 else | |
| 4289 fname2[n - 5] += 1; | |
| 4290 /* | |
| 4291 * may need to create the files to be able to use mch_stat() | |
| 4292 */ | |
| 4293 f1 = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4294 if (f1 < 0) | |
| 4295 { | |
| 4296 f1 = mch_open_rw((char *)fname, | |
| 4297 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4298 created1 = TRUE; | |
| 4299 } | |
| 4300 if (f1 >= 0) | |
| 4301 { | |
| 4302 f2 = mch_open((char *)fname2, O_RDONLY | O_EXTRA, 0); | |
| 4303 if (f2 < 0) | |
| 4304 { | |
| 4305 f2 = mch_open_rw((char *)fname2, | |
| 4306 O_RDWR|O_CREAT|O_EXCL|O_EXTRA); | |
| 4307 created2 = TRUE; | |
| 4308 } | |
| 4309 if (f2 >= 0) | |
| 4310 { | |
| 4311 /* | |
| 4312 * Both files exist now. If mch_stat() returns the | |
| 4313 * same device and inode they are the same file. | |
| 4314 */ | |
| 4315 if (mch_fstat(f1, &s1) != -1 | |
| 4316 && mch_fstat(f2, &s2) != -1 | |
| 4317 && s1.st_dev == s2.st_dev | |
| 4318 && s1.st_ino == s2.st_ino) | |
| 4319 same = TRUE; | |
| 4320 close(f2); | |
| 4321 if (created2) | |
| 4322 mch_remove(fname2); | |
| 4323 } | |
| 4324 close(f1); | |
| 4325 if (created1) | |
| 4326 mch_remove(fname); | |
| 4327 } | |
| 4328 vim_free(fname2); | |
| 4329 if (same) | |
| 4330 { | |
| 4331 buf->b_shortname = TRUE; | |
| 4332 vim_free(fname); | |
| 5432 | 4333 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4334 buf, dir_name); |
| 7 | 4335 continue; /* try again with b_shortname set */ |
| 4336 } | |
| 4337 } | |
| 4338 } | |
| 4339 } | |
| 4340 #endif | |
| 4341 /* | |
| 4342 * check if the swapfile already exists | |
| 4343 */ | |
| 4344 if (mch_getperm(fname) < 0) /* it does not exist */ | |
| 4345 { | |
| 4346 #ifdef HAVE_LSTAT | |
|
9387
f094d4085014
commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4347 stat_T sb; |
| 7 | 4348 |
| 4349 /* | |
| 4350 * Extra security check: When a swap file is a symbolic link, this | |
| 4351 * is most likely a symlink attack. | |
| 4352 */ | |
| 4353 if (mch_lstat((char *)fname, &sb) < 0) | |
| 4354 #else | |
| 4355 # ifdef AMIGA | |
| 4356 fh = Open((UBYTE *)fname, (long)MODE_NEWFILE); | |
| 4357 /* | |
| 4358 * on the Amiga mch_getperm() will return -1 when the file exists | |
| 4359 * but is being used by another program. This happens if you edit | |
| 4360 * a file twice. | |
| 4361 */ | |
| 4362 if (fh != (BPTR)NULL) /* can open file, OK */ | |
| 4363 { | |
| 4364 Close(fh); | |
| 4365 mch_remove(fname); | |
| 4366 break; | |
| 4367 } | |
| 4368 if (IoErr() != ERROR_OBJECT_IN_USE | |
| 4369 && IoErr() != ERROR_OBJECT_EXISTS) | |
| 4370 # endif | |
| 4371 #endif | |
| 4372 break; | |
| 4373 } | |
| 4374 | |
| 4375 /* | |
| 4376 * A file name equal to old_fname is OK to use. | |
| 4377 */ | |
| 4378 if (old_fname != NULL && fnamecmp(fname, old_fname) == 0) | |
| 4379 break; | |
| 4380 | |
| 4381 /* | |
| 4382 * get here when file already exists | |
| 4383 */ | |
| 4384 if (fname[n - 2] == 'w' && fname[n - 1] == 'p') /* first try */ | |
| 4385 { | |
| 4386 /* | |
| 4387 * on MS-DOS compatible filesystems (e.g. messydos) file.doc.swp | |
| 4388 * and file.doc are the same file. To guess if this problem is | |
| 4389 * present try if file.doc.swx exists. If it does, we set | |
| 4390 * buf->b_shortname and try file_doc.swp (dots replaced by | |
| 4391 * underscores for this file), and try again. If it doesn't we | |
| 4392 * assume that "file.doc.swp" already exists. | |
| 4393 */ | |
| 4394 if (!(buf->b_p_sn || buf->b_shortname)) /* not tried yet */ | |
| 4395 { | |
| 4396 fname[n - 1] = 'x'; | |
| 4397 r = mch_getperm(fname); /* try "file.swx" */ | |
| 4398 fname[n - 1] = 'p'; | |
| 4399 if (r >= 0) /* "file.swx" seems to exist */ | |
| 4400 { | |
| 4401 buf->b_shortname = TRUE; | |
| 4402 vim_free(fname); | |
| 5432 | 4403 fname = makeswapname(buf_fname, buf->b_ffname, |
| 460 | 4404 buf, dir_name); |
| 7 | 4405 continue; /* try again with '.' replaced with '_' */ |
| 4406 } | |
| 4407 } | |
| 4408 /* | |
| 4409 * If we get here the ".swp" file really exists. | |
| 4410 * Give an error message, unless recovering, no file name, we are | |
| 4411 * viewing a help file or when the path of the file is different | |
| 4412 * (happens when all .swp files are in one directory). | |
| 4413 */ | |
| 5432 | 4414 if (!recoverymode && buf_fname != NULL |
| 43 | 4415 && !buf->b_help && !(buf->b_flags & BF_DUMMY)) |
| 7 | 4416 { |
| 4417 int fd; | |
| 4418 struct block0 b0; | |
| 4419 int differ = FALSE; | |
| 4420 | |
| 4421 /* | |
| 4422 * Try to read block 0 from the swap file to get the original | |
| 4423 * file name (and inode number). | |
| 4424 */ | |
| 4425 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
| 4426 if (fd >= 0) | |
| 4427 { | |
| 2664 | 4428 if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) |
| 7 | 4429 { |
| 4430 /* | |
| 39 | 4431 * If the swapfile has the same directory as the |
| 4432 * buffer don't compare the directory names, they can | |
| 4433 * have a different mountpoint. | |
| 7 | 4434 */ |
| 39 | 4435 if (b0.b0_flags & B0_SAME_DIR) |
| 4436 { | |
| 4437 if (fnamecmp(gettail(buf->b_ffname), | |
| 4438 gettail(b0.b0_fname)) != 0 | |
| 4439 || !same_directory(fname, buf->b_ffname)) | |
| 594 | 4440 { |
| 4441 #ifdef CHECK_INODE | |
| 4442 /* Symlinks may point to the same file even | |
| 4443 * when the name differs, need to check the | |
| 4444 * inode too. */ | |
| 4445 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 4446 if (fnamecmp_ino(buf->b_ffname, NameBuff, | |
| 4447 char_to_long(b0.b0_ino))) | |
| 4448 #endif | |
| 4449 differ = TRUE; | |
| 4450 } | |
| 39 | 4451 } |
| 4452 else | |
| 4453 { | |
| 4454 /* | |
| 4455 * The name in the swap file may be | |
| 4456 * "~user/path/file". Expand it first. | |
| 4457 */ | |
| 4458 expand_env(b0.b0_fname, NameBuff, MAXPATHL); | |
| 7 | 4459 #ifdef CHECK_INODE |
| 39 | 4460 if (fnamecmp_ino(buf->b_ffname, NameBuff, |
| 594 | 4461 char_to_long(b0.b0_ino))) |
| 39 | 4462 differ = TRUE; |
| 7 | 4463 #else |
| 39 | 4464 if (fnamecmp(NameBuff, buf->b_ffname) != 0) |
| 4465 differ = TRUE; | |
| 7 | 4466 #endif |
| 39 | 4467 } |
| 7 | 4468 } |
| 4469 close(fd); | |
| 4470 } | |
| 4471 | |
| 4472 /* give the ATTENTION message when there is an old swap file | |
| 4473 * for the current file, and the buffer was not recovered. */ | |
| 4474 if (differ == FALSE && !(curbuf->b_flags & BF_RECOVERED) | |
| 4475 && vim_strchr(p_shm, SHM_ATTENTION) == NULL) | |
| 4476 { | |
| 580 | 4477 #if defined(HAS_SWAP_EXISTS_ACTION) |
| 4478 int choice = 0; | |
| 4479 #endif | |
| 7 | 4480 #ifdef CREATE_DUMMY_FILE |
| 4481 int did_use_dummy = FALSE; | |
| 4482 | |
| 4483 /* Avoid getting a warning for the file being created | |
| 4484 * outside of Vim, it was created at the start of this | |
| 4485 * function. Delete the file now, because Vim might exit | |
| 4486 * here if the window is closed. */ | |
| 4487 if (dummyfd != NULL) | |
| 4488 { | |
| 4489 fclose(dummyfd); | |
| 4490 dummyfd = NULL; | |
| 5432 | 4491 mch_remove(buf_fname); |
| 7 | 4492 did_use_dummy = TRUE; |
| 4493 } | |
| 4494 #endif | |
| 4495 | |
|
9536
b2aada04d84e
commit https://github.com/vim/vim/commit/a06ecab7a5159e744448ace731036f0dc5f87dd4
Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4496 #if (defined(UNIX) || defined(VMS)) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)) |
| 7 | 4497 process_still_running = FALSE; |
| 4498 #endif | |
|
13380
69517d67421f
patch 8.0.1564: too many #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
13244
diff
changeset
|
4499 #if defined(FEAT_EVAL) |
| 580 | 4500 /* |
| 4501 * If there is an SwapExists autocommand and we can handle | |
| 4502 * the response, trigger it. It may return 0 to ask the | |
| 4503 * user anyway. | |
| 4504 */ | |
| 4505 if (swap_exists_action != SEA_NONE | |
| 5432 | 4506 && has_autocmd(EVENT_SWAPEXISTS, buf_fname, buf)) |
| 580 | 4507 choice = do_swapexists(buf, fname); |
| 4508 | |
| 4509 if (choice == 0) | |
| 4510 #endif | |
| 7 | 4511 { |
| 580 | 4512 #ifdef FEAT_GUI |
| 4513 /* If we are supposed to start the GUI but it wasn't | |
| 4514 * completely started yet, start it now. This makes | |
| 4515 * the messages displayed in the Vim window when | |
| 4516 * loading a session from the .gvimrc file. */ | |
| 4517 if (gui.starting && !gui.in_use) | |
| 4518 gui_start(); | |
| 4519 #endif | |
| 4520 /* Show info about the existing swap file. */ | |
| 4521 attention_message(buf, fname); | |
| 4522 | |
| 4523 /* We don't want a 'q' typed at the more-prompt | |
| 4524 * interrupt loading a file. */ | |
| 4525 got_int = FALSE; | |
| 7 | 4526 } |
| 4527 | |
| 4528 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) | |
| 580 | 4529 if (swap_exists_action != SEA_NONE && choice == 0) |
| 7 | 4530 { |
| 4531 char_u *name; | |
| 4532 | |
| 4533 name = alloc((unsigned)(STRLEN(fname) | |
| 4534 + STRLEN(_("Swap file \"")) | |
| 4535 + STRLEN(_("\" already exists!")) + 5)); | |
| 4536 if (name != NULL) | |
| 4537 { | |
| 4538 STRCPY(name, _("Swap file \"")); | |
| 4539 home_replace(NULL, fname, name + STRLEN(name), | |
| 4540 1000, TRUE); | |
| 4541 STRCAT(name, _("\" already exists!")); | |
| 4542 } | |
| 580 | 4543 choice = do_dialog(VIM_WARNING, |
| 7 | 4544 (char_u *)_("VIM - ATTENTION"), |
| 4545 name == NULL | |
| 4546 ? (char_u *)_("Swap file already exists!") | |
| 4547 : name, | |
|
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Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4548 # if defined(UNIX) || defined(VMS) |
| 7 | 4549 process_still_running |
| 4550 ? (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Quit\n&Abort") : | |
| 4551 # endif | |
| 2684 | 4552 (char_u *)_("&Open Read-Only\n&Edit anyway\n&Recover\n&Delete it\n&Quit\n&Abort"), 1, NULL, FALSE); |
| 580 | 4553 |
|
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Christian Brabandt <cb@256bit.org>
parents:
9387
diff
changeset
|
4554 # if defined(UNIX) || defined(VMS) |
| 580 | 4555 if (process_still_running && choice >= 4) |
| 4556 choice++; /* Skip missing "Delete it" button */ | |
| 4557 # endif | |
| 4558 vim_free(name); | |
| 4559 | |
| 4560 /* pretend screen didn't scroll, need redraw anyway */ | |
| 4561 msg_scrolled = 0; | |
| 4562 redraw_all_later(NOT_VALID); | |
| 4563 } | |
| 4564 #endif | |
| 4565 | |
| 4566 #if defined(HAS_SWAP_EXISTS_ACTION) | |
| 4567 if (choice > 0) | |
| 4568 { | |
| 4569 switch (choice) | |
| 7 | 4570 { |
| 4571 case 1: | |
| 4572 buf->b_p_ro = TRUE; | |
| 4573 break; | |
| 4574 case 2: | |
| 4575 break; | |
| 4576 case 3: | |
| 4577 swap_exists_action = SEA_RECOVER; | |
| 4578 break; | |
| 4579 case 4: | |
| 580 | 4580 mch_remove(fname); |
| 4581 break; | |
| 4582 case 5: | |
| 7 | 4583 swap_exists_action = SEA_QUIT; |
| 4584 break; | |
| 580 | 4585 case 6: |
| 7 | 4586 swap_exists_action = SEA_QUIT; |
| 4587 got_int = TRUE; | |
| 4588 break; | |
| 4589 } | |
| 4590 | |
| 4591 /* If the file was deleted this fname can be used. */ | |
| 4592 if (mch_getperm(fname) < 0) | |
| 4593 break; | |
| 4594 } | |
| 4595 else | |
| 4596 #endif | |
| 4597 { | |
| 4598 MSG_PUTS("\n"); | |
| 625 | 4599 if (msg_silent == 0) |
| 4600 /* call wait_return() later */ | |
| 4601 need_wait_return = TRUE; | |
| 7 | 4602 } |
| 4603 | |
| 4604 #ifdef CREATE_DUMMY_FILE | |
| 4605 /* Going to try another name, need the dummy file again. */ | |
| 4606 if (did_use_dummy) | |
| 5432 | 4607 dummyfd = mch_fopen((char *)buf_fname, "w"); |
| 7 | 4608 #endif |
| 4609 } | |
| 4610 } | |
| 4611 } | |
| 4612 | |
| 4613 /* | |
| 4614 * Change the ".swp" extension to find another file that can be used. | |
| 4615 * First decrement the last char: ".swo", ".swn", etc. | |
| 4616 * If that still isn't enough decrement the last but one char: ".svz" | |
| 9 | 4617 * Can happen when editing many "No Name" buffers. |
| 7 | 4618 */ |
| 4619 if (fname[n - 1] == 'a') /* ".s?a" */ | |
| 4620 { | |
| 4621 if (fname[n - 2] == 'a') /* ".saa": tried enough, give up */ | |
| 4622 { | |
| 4623 EMSG(_("E326: Too many swap files found")); | |
|
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parents:
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diff
changeset
|
4624 VIM_CLEAR(fname); |
| 7 | 4625 break; |
| 4626 } | |
| 4627 --fname[n - 2]; /* ".svz", ".suz", etc. */ | |
| 4628 fname[n - 1] = 'z' + 1; | |
| 4629 } | |
| 4630 --fname[n - 1]; /* ".swo", ".swn", etc. */ | |
| 4631 } | |
| 4632 | |
| 4633 vim_free(dir_name); | |
| 4634 #ifdef CREATE_DUMMY_FILE | |
| 4635 if (dummyfd != NULL) /* file has been created temporarily */ | |
| 4636 { | |
| 4637 fclose(dummyfd); | |
| 5432 | 4638 mch_remove(buf_fname); |
| 7 | 4639 } |
| 4640 #endif | |
| 5432 | 4641 #ifdef WIN3264 |
| 4642 if (buf_fname != buf->b_fname) | |
| 4643 vim_free(buf_fname); | |
| 4644 #endif | |
| 7 | 4645 return fname; |
| 4646 } | |
| 4647 | |
| 4648 static int | |
|
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parents:
7803
diff
changeset
|
4649 b0_magic_wrong(ZERO_BL *b0p) |
| 7 | 4650 { |
| 4651 return (b0p->b0_magic_long != (long)B0_MAGIC_LONG | |
| 4652 || b0p->b0_magic_int != (int)B0_MAGIC_INT | |
| 4653 || b0p->b0_magic_short != (short)B0_MAGIC_SHORT | |
| 4654 || b0p->b0_magic_char != B0_MAGIC_CHAR); | |
| 4655 } | |
| 4656 | |
| 4657 #ifdef CHECK_INODE | |
| 4658 /* | |
| 4659 * Compare current file name with file name from swap file. | |
| 4660 * Try to use inode numbers when possible. | |
| 4661 * Return non-zero when files are different. | |
| 4662 * | |
| 4663 * When comparing file names a few things have to be taken into consideration: | |
| 4664 * - When working over a network the full path of a file depends on the host. | |
| 4665 * We check the inode number if possible. It is not 100% reliable though, | |
| 4666 * because the device number cannot be used over a network. | |
| 4667 * - When a file does not exist yet (editing a new file) there is no inode | |
| 4668 * number. | |
| 4669 * - The file name in a swap file may not be valid on the current host. The | |
| 4670 * "~user" form is used whenever possible to avoid this. | |
| 4671 * | |
| 4672 * This is getting complicated, let's make a table: | |
| 4673 * | |
| 4674 * ino_c ino_s fname_c fname_s differ = | |
| 4675 * | |
| 4676 * both files exist -> compare inode numbers: | |
| 4677 * != 0 != 0 X X ino_c != ino_s | |
| 4678 * | |
| 4679 * inode number(s) unknown, file names available -> compare file names | |
| 4680 * == 0 X OK OK fname_c != fname_s | |
| 4681 * X == 0 OK OK fname_c != fname_s | |
| 4682 * | |
| 4683 * current file doesn't exist, file for swap file exist, file name(s) not | |
| 4684 * available -> probably different | |
| 4685 * == 0 != 0 FAIL X TRUE | |
| 4686 * == 0 != 0 X FAIL TRUE | |
| 4687 * | |
| 4688 * current file exists, inode for swap unknown, file name(s) not | |
| 4689 * available -> probably different | |
| 4690 * != 0 == 0 FAIL X TRUE | |
| 4691 * != 0 == 0 X FAIL TRUE | |
| 4692 * | |
| 4693 * current file doesn't exist, inode for swap unknown, one file name not | |
| 4694 * available -> probably different | |
| 4695 * == 0 == 0 FAIL OK TRUE | |
| 4696 * == 0 == 0 OK FAIL TRUE | |
| 4697 * | |
| 4698 * current file doesn't exist, inode for swap unknown, both file names not | |
|
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diff
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|
4699 * available -> compare file names |
|
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13632
diff
changeset
|
4700 * == 0 == 0 FAIL FAIL fname_c != fname_s |
| 7 | 4701 * |
| 4702 * Note that when the ino_t is 64 bits, only the last 32 will be used. This | |
| 4703 * can't be changed without making the block 0 incompatible with 32 bit | |
| 4704 * versions. | |
| 4705 */ | |
| 4706 | |
| 4707 static int | |
|
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7803
diff
changeset
|
4708 fnamecmp_ino( |
|
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7803
diff
changeset
|
4709 char_u *fname_c, /* current file name */ |
|
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7803
diff
changeset
|
4710 char_u *fname_s, /* file name from swap file */ |
|
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parents:
7803
diff
changeset
|
4711 long ino_block0) |
| 7 | 4712 { |
|
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parents:
9295
diff
changeset
|
4713 stat_T st; |
| 7 | 4714 ino_t ino_c = 0; /* ino of current file */ |
| 4715 ino_t ino_s; /* ino of file from swap file */ | |
| 4716 char_u buf_c[MAXPATHL]; /* full path of fname_c */ | |
| 4717 char_u buf_s[MAXPATHL]; /* full path of fname_s */ | |
| 4718 int retval_c; /* flag: buf_c valid */ | |
| 4719 int retval_s; /* flag: buf_s valid */ | |
| 4720 | |
| 4721 if (mch_stat((char *)fname_c, &st) == 0) | |
| 4722 ino_c = (ino_t)st.st_ino; | |
| 4723 | |
| 4724 /* | |
| 4725 * First we try to get the inode from the file name, because the inode in | |
| 4726 * the swap file may be outdated. If that fails (e.g. this path is not | |
| 4727 * valid on this machine), use the inode from block 0. | |
| 4728 */ | |
| 4729 if (mch_stat((char *)fname_s, &st) == 0) | |
| 4730 ino_s = (ino_t)st.st_ino; | |
| 4731 else | |
| 4732 ino_s = (ino_t)ino_block0; | |
| 4733 | |
| 4734 if (ino_c && ino_s) | |
| 4735 return (ino_c != ino_s); | |
| 4736 | |
| 4737 /* | |
| 4738 * One of the inode numbers is unknown, try a forced vim_FullName() and | |
| 4739 * compare the file names. | |
| 4740 */ | |
| 4741 retval_c = vim_FullName(fname_c, buf_c, MAXPATHL, TRUE); | |
| 4742 retval_s = vim_FullName(fname_s, buf_s, MAXPATHL, TRUE); | |
| 4743 if (retval_c == OK && retval_s == OK) | |
|
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diff
changeset
|
4744 return STRCMP(buf_c, buf_s) != 0; |
| 7 | 4745 |
| 4746 /* | |
| 4747 * Can't compare inodes or file names, guess that the files are different, | |
|
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diff
changeset
|
4748 * unless both appear not to exist at all, then compare with the file name |
|
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13632
diff
changeset
|
4749 * in the swap file. |
| 7 | 4750 */ |
| 4751 if (ino_s == 0 && ino_c == 0 && retval_c == FAIL && retval_s == FAIL) | |
|
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diff
changeset
|
4752 return STRCMP(fname_c, fname_s) != 0; |
| 7 | 4753 return TRUE; |
| 4754 } | |
| 4755 #endif /* CHECK_INODE */ | |
| 4756 | |
| 4757 /* | |
| 4758 * Move a long integer into a four byte character array. | |
| 4759 * Used for machine independency in block zero. | |
| 4760 */ | |
| 4761 static void | |
|
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7803
diff
changeset
|
4762 long_to_char(long n, char_u *s) |
| 7 | 4763 { |
| 4764 s[0] = (char_u)(n & 0xff); | |
| 4765 n = (unsigned)n >> 8; | |
| 4766 s[1] = (char_u)(n & 0xff); | |
| 4767 n = (unsigned)n >> 8; | |
| 4768 s[2] = (char_u)(n & 0xff); | |
| 4769 n = (unsigned)n >> 8; | |
| 4770 s[3] = (char_u)(n & 0xff); | |
| 4771 } | |
| 4772 | |
| 4773 static long | |
|
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parents:
7803
diff
changeset
|
4774 char_to_long(char_u *s) |
| 7 | 4775 { |
| 4776 long retval; | |
| 4777 | |
| 4778 retval = s[3]; | |
| 4779 retval <<= 8; | |
| 4780 retval |= s[2]; | |
| 4781 retval <<= 8; | |
| 4782 retval |= s[1]; | |
| 4783 retval <<= 8; | |
| 4784 retval |= s[0]; | |
| 4785 | |
| 4786 return retval; | |
| 4787 } | |
| 4788 | |
| 39 | 4789 /* |
| 4790 * Set the flags in the first block of the swap file: | |
| 4791 * - file is modified or not: buf->b_changed | |
| 4792 * - 'fileformat' | |
| 4793 * - 'fileencoding' | |
| 4794 */ | |
| 7 | 4795 void |
|
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parents:
7803
diff
changeset
|
4796 ml_setflags(buf_T *buf) |
| 7 | 4797 { |
| 4798 bhdr_T *hp; | |
| 4799 ZERO_BL *b0p; | |
| 4800 | |
| 4801 if (!buf->b_ml.ml_mfp) | |
| 4802 return; | |
| 4803 for (hp = buf->b_ml.ml_mfp->mf_used_last; hp != NULL; hp = hp->bh_prev) | |
| 4804 { | |
| 4805 if (hp->bh_bnum == 0) | |
| 4806 { | |
| 4807 b0p = (ZERO_BL *)(hp->bh_data); | |
| 39 | 4808 b0p->b0_dirty = buf->b_changed ? B0_DIRTY : 0; |
| 4809 b0p->b0_flags = (b0p->b0_flags & ~B0_FF_MASK) | |
| 4810 | (get_fileformat(buf) + 1); | |
| 4811 #ifdef FEAT_MBYTE | |
| 4812 add_b0_fenc(b0p, buf); | |
| 4813 #endif | |
| 7 | 4814 hp->bh_flags |= BH_DIRTY; |
| 4815 mf_sync(buf->b_ml.ml_mfp, MFS_ZERO); | |
| 4816 break; | |
| 4817 } | |
| 4818 } | |
| 4819 } | |
| 4820 | |
| 2267 | 4821 #if defined(FEAT_CRYPT) || defined(PROTO) |
| 4822 /* | |
| 4823 * If "data" points to a data block encrypt the text in it and return a copy | |
| 4824 * in allocated memory. Return NULL when out of memory. | |
| 4825 * Otherwise return "data". | |
| 4826 */ | |
| 4827 char_u * | |
|
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parents:
7803
diff
changeset
|
4828 ml_encrypt_data( |
|
41789f16d6b2
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parents:
7803
diff
changeset
|
4829 memfile_T *mfp, |
|
41789f16d6b2
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parents:
7803
diff
changeset
|
4830 char_u *data, |
|
9387
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parents:
9295
diff
changeset
|
4831 off_T offset, |
|
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4832 unsigned size) |
| 2267 | 4833 { |
| 4834 DATA_BL *dp = (DATA_BL *)data; | |
| 4835 char_u *head_end; | |
| 4836 char_u *text_start; | |
| 4837 char_u *new_data; | |
| 4838 int text_len; | |
| 6122 | 4839 cryptstate_T *state; |
| 2267 | 4840 |
| 4841 if (dp->db_id != DATA_ID) | |
| 4842 return data; | |
| 4843 | |
| 6817 | 4844 state = ml_crypt_prepare(mfp, offset, FALSE); |
| 4845 if (state == NULL) | |
| 4846 return data; | |
| 4847 | |
| 2267 | 4848 new_data = (char_u *)alloc(size); |
| 4849 if (new_data == NULL) | |
| 4850 return NULL; | |
| 4851 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4852 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4853 text_len = size - dp->db_txt_start; | |
| 4854 | |
| 4855 /* Copy the header and the text. */ | |
| 4856 mch_memmove(new_data, dp, head_end - (char_u *)dp); | |
| 4857 | |
| 4858 /* Encrypt the text. */ | |
| 6122 | 4859 crypt_encode(state, text_start, text_len, new_data + dp->db_txt_start); |
| 4860 crypt_free_state(state); | |
| 2267 | 4861 |
| 4862 /* Clear the gap. */ | |
| 4863 if (head_end < text_start) | |
| 4864 vim_memset(new_data + (head_end - data), 0, text_start - head_end); | |
| 4865 | |
| 4866 return new_data; | |
| 4867 } | |
| 4868 | |
| 4869 /* | |
| 6817 | 4870 * Decrypt the text in "data" if it points to an encrypted data block. |
| 2267 | 4871 */ |
| 4872 void | |
|
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parents:
7803
diff
changeset
|
4873 ml_decrypt_data( |
|
41789f16d6b2
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parents:
7803
diff
changeset
|
4874 memfile_T *mfp, |
|
41789f16d6b2
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4875 char_u *data, |
|
9387
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9295
diff
changeset
|
4876 off_T offset, |
|
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parents:
7803
diff
changeset
|
4877 unsigned size) |
| 2267 | 4878 { |
| 4879 DATA_BL *dp = (DATA_BL *)data; | |
| 4880 char_u *head_end; | |
| 4881 char_u *text_start; | |
| 4882 int text_len; | |
| 6122 | 4883 cryptstate_T *state; |
| 2267 | 4884 |
| 4885 if (dp->db_id == DATA_ID) | |
| 4886 { | |
| 4887 head_end = (char_u *)(&dp->db_index[dp->db_line_count]); | |
| 4888 text_start = (char_u *)dp + dp->db_txt_start; | |
| 4889 text_len = dp->db_txt_end - dp->db_txt_start; | |
| 4890 | |
| 4891 if (head_end > text_start || dp->db_txt_start > size | |
| 4892 || dp->db_txt_end > size) | |
| 4893 return; /* data was messed up */ | |
| 4894 | |
| 6122 | 4895 state = ml_crypt_prepare(mfp, offset, TRUE); |
| 6817 | 4896 if (state != NULL) |
| 4897 { | |
| 4898 /* Decrypt the text in place. */ | |
| 4899 crypt_decode_inplace(state, text_start, text_len); | |
| 4900 crypt_free_state(state); | |
| 4901 } | |
| 2267 | 4902 } |
| 4903 } | |
| 4904 | |
| 4905 /* | |
| 4906 * Prepare for encryption/decryption, using the key, seed and offset. | |
| 6122 | 4907 * Return an allocated cryptstate_T *. |
| 2267 | 4908 */ |
| 6122 | 4909 static cryptstate_T * |
|
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Christian Brabandt <cb@256bit.org>
parents:
9295
diff
changeset
|
4910 ml_crypt_prepare(memfile_T *mfp, off_T offset, int reading) |
| 2267 | 4911 { |
| 4912 buf_T *buf = mfp->mf_buffer; | |
| 4913 char_u salt[50]; | |
| 6122 | 4914 int method_nr; |
| 2267 | 4915 char_u *key; |
| 4916 char_u *seed; | |
| 4917 | |
| 4918 if (reading && mfp->mf_old_key != NULL) | |
| 4919 { | |
| 4920 /* Reading back blocks with the previous key/method/seed. */ | |
| 6122 | 4921 method_nr = mfp->mf_old_cm; |
| 2267 | 4922 key = mfp->mf_old_key; |
| 4923 seed = mfp->mf_old_seed; | |
| 4924 } | |
| 4925 else | |
| 4926 { | |
| 6122 | 4927 method_nr = crypt_get_method_nr(buf); |
| 2267 | 4928 key = buf->b_p_key; |
| 4929 seed = mfp->mf_seed; | |
| 4930 } | |
| 6817 | 4931 if (*key == NUL) |
| 4932 return NULL; | |
| 2267 | 4933 |
| 6122 | 4934 if (method_nr == CRYPT_M_ZIP) |
| 2267 | 4935 { |
| 6122 | 4936 /* For PKzip: Append the offset to the key, so that we use a different |
| 4937 * key for every block. */ | |
| 2267 | 4938 vim_snprintf((char *)salt, sizeof(salt), "%s%ld", key, (long)offset); |
| 6122 | 4939 return crypt_create(method_nr, salt, NULL, 0, NULL, 0); |
| 2267 | 4940 } |
| 6122 | 4941 |
| 4942 /* Using blowfish or better: add salt and seed. We use the byte offset | |
| 4943 * of the block for the salt. */ | |
| 4944 vim_snprintf((char *)salt, sizeof(salt), "%ld", (long)offset); | |
| 4945 return crypt_create(method_nr, key, salt, (int)STRLEN(salt), | |
| 4946 seed, MF_SEED_LEN); | |
| 2267 | 4947 } |
| 4948 | |
| 4949 #endif | |
| 4950 | |
| 4951 | |
| 7 | 4952 #if defined(FEAT_BYTEOFF) || defined(PROTO) |
| 4953 | |
| 4954 #define MLCS_MAXL 800 /* max no of lines in chunk */ | |
| 4955 #define MLCS_MINL 400 /* should be half of MLCS_MAXL */ | |
| 4956 | |
| 4957 /* | |
|
2407
6bc102a4bff8
Fix memory access to 'cryptmethod' during recovery. (Dominique Pelle)
Bram Moolenaar <bram@vim.org>
parents:
2394
diff
changeset
|
4958 * Keep information for finding byte offset of a line, updtype may be one of: |
| 7 | 4959 * ML_CHNK_ADDLINE: Add len to parent chunk, possibly splitting it |
| 4960 * Careful: ML_CHNK_ADDLINE may cause ml_find_line() to be called. | |
| 4961 * ML_CHNK_DELLINE: Subtract len from parent chunk, possibly deleting it | |
| 4962 * ML_CHNK_UPDLINE: Add len to parent chunk, as a signed entity. | |
| 4963 */ | |
| 4964 static void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4965 ml_updatechunk( |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4966 buf_T *buf, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4967 linenr_T line, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4968 long len, |
|
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
4969 int updtype) |
| 7 | 4970 { |
| 4971 static buf_T *ml_upd_lastbuf = NULL; | |
| 4972 static linenr_T ml_upd_lastline; | |
| 4973 static linenr_T ml_upd_lastcurline; | |
| 4974 static int ml_upd_lastcurix; | |
| 4975 | |
| 4976 linenr_T curline = ml_upd_lastcurline; | |
| 4977 int curix = ml_upd_lastcurix; | |
| 4978 long size; | |
| 4979 chunksize_T *curchnk; | |
| 4980 int rest; | |
| 4981 bhdr_T *hp; | |
| 4982 DATA_BL *dp; | |
| 4983 | |
| 4984 if (buf->b_ml.ml_usedchunks == -1 || len == 0) | |
| 4985 return; | |
| 4986 if (buf->b_ml.ml_chunksize == NULL) | |
| 4987 { | |
| 4988 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 4989 alloc((unsigned)sizeof(chunksize_T) * 100); | |
| 4990 if (buf->b_ml.ml_chunksize == NULL) | |
| 4991 { | |
| 4992 buf->b_ml.ml_usedchunks = -1; | |
| 4993 return; | |
| 4994 } | |
| 4995 buf->b_ml.ml_numchunks = 100; | |
| 4996 buf->b_ml.ml_usedchunks = 1; | |
| 4997 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 4998 buf->b_ml.ml_chunksize[0].mlcs_totalsize = 1; | |
| 4999 } | |
| 5000 | |
| 5001 if (updtype == ML_CHNK_UPDLINE && buf->b_ml.ml_line_count == 1) | |
| 5002 { | |
| 5003 /* | |
| 5004 * First line in empty buffer from ml_flush_line() -- reset | |
| 5005 */ | |
| 5006 buf->b_ml.ml_usedchunks = 1; | |
| 5007 buf->b_ml.ml_chunksize[0].mlcs_numlines = 1; | |
| 5008 buf->b_ml.ml_chunksize[0].mlcs_totalsize = | |
| 5009 (long)STRLEN(buf->b_ml.ml_line_ptr) + 1; | |
| 5010 return; | |
| 5011 } | |
| 5012 | |
| 5013 /* | |
| 5014 * Find chunk that our line belongs to, curline will be at start of the | |
| 5015 * chunk. | |
| 5016 */ | |
| 5017 if (buf != ml_upd_lastbuf || line != ml_upd_lastline + 1 | |
| 5018 || updtype != ML_CHNK_ADDLINE) | |
| 5019 { | |
| 5020 for (curline = 1, curix = 0; | |
| 5021 curix < buf->b_ml.ml_usedchunks - 1 | |
| 5022 && line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5023 curix++) | |
| 5024 { | |
| 5025 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5026 } | |
| 5027 } | |
| 5028 else if (line >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines | |
| 5029 && curix < buf->b_ml.ml_usedchunks - 1) | |
| 5030 { | |
| 5031 /* Adjust cached curix & curline */ | |
| 5032 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5033 curix++; | |
| 5034 } | |
| 5035 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5036 | |
| 5037 if (updtype == ML_CHNK_DELLINE) | |
| 1030 | 5038 len = -len; |
| 7 | 5039 curchnk->mlcs_totalsize += len; |
| 5040 if (updtype == ML_CHNK_ADDLINE) | |
| 5041 { | |
| 5042 curchnk->mlcs_numlines++; | |
| 5043 | |
| 5044 /* May resize here so we don't have to do it in both cases below */ | |
| 5045 if (buf->b_ml.ml_usedchunks + 1 >= buf->b_ml.ml_numchunks) | |
| 5046 { | |
| 6596 | 5047 chunksize_T *t_chunksize = buf->b_ml.ml_chunksize; |
| 5048 | |
| 7 | 5049 buf->b_ml.ml_numchunks = buf->b_ml.ml_numchunks * 3 / 2; |
| 5050 buf->b_ml.ml_chunksize = (chunksize_T *) | |
| 5051 vim_realloc(buf->b_ml.ml_chunksize, | |
| 5052 sizeof(chunksize_T) * buf->b_ml.ml_numchunks); | |
| 5053 if (buf->b_ml.ml_chunksize == NULL) | |
| 5054 { | |
| 5055 /* Hmmmm, Give up on offset for this buffer */ | |
| 6596 | 5056 vim_free(t_chunksize); |
| 7 | 5057 buf->b_ml.ml_usedchunks = -1; |
| 5058 return; | |
| 5059 } | |
| 5060 } | |
| 5061 | |
| 5062 if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MAXL) | |
| 5063 { | |
| 5064 int count; /* number of entries in block */ | |
| 5065 int idx; | |
| 5066 int text_end; | |
| 5067 int linecnt; | |
| 5068 | |
| 5069 mch_memmove(buf->b_ml.ml_chunksize + curix + 1, | |
| 5070 buf->b_ml.ml_chunksize + curix, | |
| 5071 (buf->b_ml.ml_usedchunks - curix) * | |
| 5072 sizeof(chunksize_T)); | |
| 1855 | 5073 /* Compute length of first half of lines in the split chunk */ |
| 7 | 5074 size = 0; |
| 5075 linecnt = 0; | |
| 5076 while (curline < buf->b_ml.ml_line_count | |
| 5077 && linecnt < MLCS_MINL) | |
| 5078 { | |
| 5079 if ((hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5080 { | |
| 5081 buf->b_ml.ml_usedchunks = -1; | |
| 5082 return; | |
| 5083 } | |
| 5084 dp = (DATA_BL *)(hp->bh_data); | |
| 5085 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5086 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5087 idx = curline - buf->b_ml.ml_locked_low; | |
| 5088 curline = buf->b_ml.ml_locked_high + 1; | |
| 5089 if (idx == 0)/* first line in block, text at the end */ | |
| 5090 text_end = dp->db_txt_end; | |
| 5091 else | |
| 5092 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5093 /* Compute index of last line to use in this MEMLINE */ | |
| 5094 rest = count - idx; | |
| 5095 if (linecnt + rest > MLCS_MINL) | |
| 5096 { | |
| 5097 idx += MLCS_MINL - linecnt - 1; | |
| 5098 linecnt = MLCS_MINL; | |
| 5099 } | |
| 5100 else | |
| 5101 { | |
| 5102 idx = count - 1; | |
| 5103 linecnt += rest; | |
| 5104 } | |
| 5105 size += text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5106 } | |
| 5107 buf->b_ml.ml_chunksize[curix].mlcs_numlines = linecnt; | |
| 5108 buf->b_ml.ml_chunksize[curix + 1].mlcs_numlines -= linecnt; | |
| 5109 buf->b_ml.ml_chunksize[curix].mlcs_totalsize = size; | |
| 5110 buf->b_ml.ml_chunksize[curix + 1].mlcs_totalsize -= size; | |
| 5111 buf->b_ml.ml_usedchunks++; | |
| 5112 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5113 return; | |
| 5114 } | |
| 5115 else if (buf->b_ml.ml_chunksize[curix].mlcs_numlines >= MLCS_MINL | |
| 5116 && curix == buf->b_ml.ml_usedchunks - 1 | |
| 5117 && buf->b_ml.ml_line_count - line <= 1) | |
| 5118 { | |
| 5119 /* | |
| 5120 * We are in the last chunk and it is cheap to crate a new one | |
| 5121 * after this. Do it now to avoid the loop above later on | |
| 5122 */ | |
| 5123 curchnk = buf->b_ml.ml_chunksize + curix + 1; | |
| 5124 buf->b_ml.ml_usedchunks++; | |
| 5125 if (line == buf->b_ml.ml_line_count) | |
| 5126 { | |
| 5127 curchnk->mlcs_numlines = 0; | |
| 5128 curchnk->mlcs_totalsize = 0; | |
| 5129 } | |
| 5130 else | |
| 5131 { | |
| 5132 /* | |
| 5133 * Line is just prior to last, move count for last | |
| 5134 * This is the common case when loading a new file | |
| 5135 */ | |
| 5136 hp = ml_find_line(buf, buf->b_ml.ml_line_count, ML_FIND); | |
| 5137 if (hp == NULL) | |
| 5138 { | |
| 5139 buf->b_ml.ml_usedchunks = -1; | |
| 5140 return; | |
| 5141 } | |
| 5142 dp = (DATA_BL *)(hp->bh_data); | |
| 5143 if (dp->db_line_count == 1) | |
| 5144 rest = dp->db_txt_end - dp->db_txt_start; | |
| 5145 else | |
| 5146 rest = | |
| 5147 ((dp->db_index[dp->db_line_count - 2]) & DB_INDEX_MASK) | |
| 5148 - dp->db_txt_start; | |
| 5149 curchnk->mlcs_totalsize = rest; | |
| 5150 curchnk->mlcs_numlines = 1; | |
| 5151 curchnk[-1].mlcs_totalsize -= rest; | |
| 5152 curchnk[-1].mlcs_numlines -= 1; | |
| 5153 } | |
| 5154 } | |
| 5155 } | |
| 5156 else if (updtype == ML_CHNK_DELLINE) | |
| 5157 { | |
| 5158 curchnk->mlcs_numlines--; | |
| 5159 ml_upd_lastbuf = NULL; /* Force recalc of curix & curline */ | |
| 5160 if (curix < (buf->b_ml.ml_usedchunks - 1) | |
| 5161 && (curchnk->mlcs_numlines + curchnk[1].mlcs_numlines) | |
| 5162 <= MLCS_MINL) | |
| 5163 { | |
| 5164 curix++; | |
| 5165 curchnk = buf->b_ml.ml_chunksize + curix; | |
| 5166 } | |
| 5167 else if (curix == 0 && curchnk->mlcs_numlines <= 0) | |
| 5168 { | |
| 5169 buf->b_ml.ml_usedchunks--; | |
| 5170 mch_memmove(buf->b_ml.ml_chunksize, buf->b_ml.ml_chunksize + 1, | |
| 5171 buf->b_ml.ml_usedchunks * sizeof(chunksize_T)); | |
| 5172 return; | |
| 5173 } | |
| 5174 else if (curix == 0 || (curchnk->mlcs_numlines > 10 | |
| 5175 && (curchnk->mlcs_numlines + curchnk[-1].mlcs_numlines) | |
| 5176 > MLCS_MINL)) | |
| 5177 { | |
| 5178 return; | |
| 5179 } | |
| 5180 | |
| 5181 /* Collapse chunks */ | |
| 5182 curchnk[-1].mlcs_numlines += curchnk->mlcs_numlines; | |
| 5183 curchnk[-1].mlcs_totalsize += curchnk->mlcs_totalsize; | |
| 5184 buf->b_ml.ml_usedchunks--; | |
| 5185 if (curix < buf->b_ml.ml_usedchunks) | |
| 5186 { | |
| 5187 mch_memmove(buf->b_ml.ml_chunksize + curix, | |
| 5188 buf->b_ml.ml_chunksize + curix + 1, | |
| 5189 (buf->b_ml.ml_usedchunks - curix) * | |
| 5190 sizeof(chunksize_T)); | |
| 5191 } | |
| 5192 return; | |
| 5193 } | |
| 5194 ml_upd_lastbuf = buf; | |
| 5195 ml_upd_lastline = line; | |
| 5196 ml_upd_lastcurline = curline; | |
| 5197 ml_upd_lastcurix = curix; | |
| 5198 } | |
| 5199 | |
| 5200 /* | |
| 5201 * Find offset for line or line with offset. | |
| 169 | 5202 * Find line with offset if "lnum" is 0; return remaining offset in offp |
| 5203 * Find offset of line if "lnum" > 0 | |
| 7 | 5204 * return -1 if information is not available |
| 5205 */ | |
| 5206 long | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5207 ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp) |
| 7 | 5208 { |
| 5209 linenr_T curline; | |
| 5210 int curix; | |
| 5211 long size; | |
| 5212 bhdr_T *hp; | |
| 5213 DATA_BL *dp; | |
| 5214 int count; /* number of entries in block */ | |
| 5215 int idx; | |
| 5216 int start_idx; | |
| 5217 int text_end; | |
| 5218 long offset; | |
| 5219 int len; | |
| 5220 int ffdos = (get_fileformat(buf) == EOL_DOS); | |
| 5221 int extra = 0; | |
| 5222 | |
| 169 | 5223 /* take care of cached line first */ |
| 5224 ml_flush_line(curbuf); | |
| 5225 | |
| 7 | 5226 if (buf->b_ml.ml_usedchunks == -1 |
| 5227 || buf->b_ml.ml_chunksize == NULL | |
| 169 | 5228 || lnum < 0) |
| 7 | 5229 return -1; |
| 5230 | |
| 5231 if (offp == NULL) | |
| 5232 offset = 0; | |
| 5233 else | |
| 5234 offset = *offp; | |
| 169 | 5235 if (lnum == 0 && offset <= 0) |
| 7 | 5236 return 1; /* Not a "find offset" and offset 0 _must_ be in line 1 */ |
| 5237 /* | |
| 5238 * Find the last chunk before the one containing our line. Last chunk is | |
| 5239 * special because it will never qualify | |
| 5240 */ | |
| 5241 curline = 1; | |
| 5242 curix = size = 0; | |
| 5243 while (curix < buf->b_ml.ml_usedchunks - 1 | |
| 169 | 5244 && ((lnum != 0 |
| 5245 && lnum >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) | |
| 7 | 5246 || (offset != 0 |
| 5247 && offset > size + buf->b_ml.ml_chunksize[curix].mlcs_totalsize | |
| 5248 + ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) | |
| 5249 { | |
| 5250 curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5251 size += buf->b_ml.ml_chunksize[curix].mlcs_totalsize; | |
| 5252 if (offset && ffdos) | |
| 5253 size += buf->b_ml.ml_chunksize[curix].mlcs_numlines; | |
| 5254 curix++; | |
| 5255 } | |
| 5256 | |
| 169 | 5257 while ((lnum != 0 && curline < lnum) || (offset != 0 && size < offset)) |
| 7 | 5258 { |
| 5259 if (curline > buf->b_ml.ml_line_count | |
| 5260 || (hp = ml_find_line(buf, curline, ML_FIND)) == NULL) | |
| 5261 return -1; | |
| 5262 dp = (DATA_BL *)(hp->bh_data); | |
| 5263 count = (long)(buf->b_ml.ml_locked_high) - | |
| 5264 (long)(buf->b_ml.ml_locked_low) + 1; | |
| 5265 start_idx = idx = curline - buf->b_ml.ml_locked_low; | |
| 5266 if (idx == 0)/* first line in block, text at the end */ | |
| 5267 text_end = dp->db_txt_end; | |
| 5268 else | |
| 5269 text_end = ((dp->db_index[idx - 1]) & DB_INDEX_MASK); | |
| 5270 /* Compute index of last line to use in this MEMLINE */ | |
| 169 | 5271 if (lnum != 0) |
| 7 | 5272 { |
| 169 | 5273 if (curline + (count - idx) >= lnum) |
| 5274 idx += lnum - curline - 1; | |
| 7 | 5275 else |
| 5276 idx = count - 1; | |
| 5277 } | |
| 5278 else | |
| 5279 { | |
| 5280 extra = 0; | |
| 5281 while (offset >= size | |
| 5282 + text_end - (int)((dp->db_index[idx]) & DB_INDEX_MASK) | |
| 5283 + ffdos) | |
| 5284 { | |
| 5285 if (ffdos) | |
| 5286 size++; | |
| 5287 if (idx == count - 1) | |
| 5288 { | |
| 5289 extra = 1; | |
| 5290 break; | |
| 5291 } | |
| 5292 idx++; | |
| 5293 } | |
| 5294 } | |
| 5295 len = text_end - ((dp->db_index[idx]) & DB_INDEX_MASK); | |
| 5296 size += len; | |
| 5297 if (offset != 0 && size >= offset) | |
| 5298 { | |
| 5299 if (size + ffdos == offset) | |
| 5300 *offp = 0; | |
| 5301 else if (idx == start_idx) | |
| 5302 *offp = offset - size + len; | |
| 5303 else | |
| 5304 *offp = offset - size + len | |
| 5305 - (text_end - ((dp->db_index[idx - 1]) & DB_INDEX_MASK)); | |
| 5306 curline += idx - start_idx + extra; | |
| 5307 if (curline > buf->b_ml.ml_line_count) | |
| 5308 return -1; /* exactly one byte beyond the end */ | |
| 5309 return curline; | |
| 5310 } | |
| 5311 curline = buf->b_ml.ml_locked_high + 1; | |
| 5312 } | |
| 5313 | |
| 169 | 5314 if (lnum != 0) |
| 20 | 5315 { |
| 5316 /* Count extra CR characters. */ | |
| 5317 if (ffdos) | |
| 169 | 5318 size += lnum - 1; |
| 20 | 5319 |
| 6933 | 5320 /* Don't count the last line break if 'noeol' and ('bin' or |
| 5321 * 'nofixeol'). */ | |
| 5322 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
|
5323 && lnum > buf->b_ml.ml_line_count) |
| 20 | 5324 size -= ffdos + 1; |
| 5325 } | |
| 5326 | |
| 7 | 5327 return size; |
| 5328 } | |
| 5329 | |
| 5330 /* | |
| 5331 * Goto byte in buffer with offset 'cnt'. | |
| 5332 */ | |
| 5333 void | |
|
7827
41789f16d6b2
commit https://github.com/vim/vim/commit/52ea13da0fe86df1abf34de52841e367035170c0
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
5334 goto_byte(long cnt) |
| 7 | 5335 { |
| 5336 long boff = cnt; | |
| 5337 linenr_T lnum; | |
| 5338 | |
| 5339 ml_flush_line(curbuf); /* cached line may be dirty */ | |
| 5340 setpcmark(); | |
| 5341 if (boff) | |
| 5342 --boff; | |
| 5343 lnum = ml_find_line_or_offset(curbuf, (linenr_T)0, &boff); | |
| 5344 if (lnum < 1) /* past the end */ | |
| 5345 { | |
| 5346 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
| 5347 curwin->w_curswant = MAXCOL; | |
| 5348 coladvance((colnr_T)MAXCOL); | |
| 5349 } | |
| 5350 else | |
| 5351 { | |
| 5352 curwin->w_cursor.lnum = lnum; | |
| 5353 curwin->w_cursor.col = (colnr_T)boff; | |
| 572 | 5354 # ifdef FEAT_VIRTUALEDIT |
| 5355 curwin->w_cursor.coladd = 0; | |
| 5356 # endif | |
| 7 | 5357 curwin->w_set_curswant = TRUE; |
| 5358 } | |
| 5359 check_cursor(); | |
| 5360 | |
| 5361 # ifdef FEAT_MBYTE | |
| 5362 /* Make sure the cursor is on the first byte of a multi-byte char. */ | |
| 5363 if (has_mbyte) | |
| 5364 mb_adjust_cursor(); | |
| 5365 # endif | |
| 5366 } | |
| 5367 #endif |