Mercurial > vim
annotate src/fileio.c @ 2204:c493d6bfde09 vim73
A few more changes for encryption. Add test that encrypted file can be read.
author | Bram Moolenaar <bram@vim.org> |
---|---|
date | Fri, 21 May 2010 15:36:08 +0200 |
parents | f60a0c9cbe6c |
children | 8c6a66e2b3cc |
rev | line source |
---|---|
7 | 1 /* vi:set ts=8 sts=4 sw=4: |
2 * | |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 | |
10 /* | |
11 * fileio.c: read from and write to a file | |
12 */ | |
13 | |
14 #if defined(MSDOS) || defined(WIN16) || defined(WIN32) || defined(_WIN64) | |
714 | 15 # include "vimio.h" /* for lseek(), must be before vim.h */ |
7 | 16 #endif |
17 | |
18 #if defined __EMX__ | |
714 | 19 # include "vimio.h" /* for mktemp(), CJW 1997-12-03 */ |
7 | 20 #endif |
21 | |
22 #include "vim.h" | |
23 | |
2014 | 24 #if defined(__TANDEM) || defined(__MINT__) |
7 | 25 # include <limits.h> /* for SSIZE_MAX */ |
26 #endif | |
27 | |
28 #if defined(HAVE_UTIME) && defined(HAVE_UTIME_H) | |
29 # include <utime.h> /* for struct utimbuf */ | |
30 #endif | |
31 | |
32 #define BUFSIZE 8192 /* size of normal write buffer */ | |
33 #define SMBUFSIZE 256 /* size of emergency write buffer */ | |
34 | |
35 #ifdef FEAT_CRYPT | |
2204
c493d6bfde09
A few more changes for encryption. Add test that encrypted file can be read.
Bram Moolenaar <bram@vim.org>
parents:
2180
diff
changeset
|
36 /* crypt_magic[0] is pkzip crypt, crypt_magic[1] is sha2+blowfish */ |
c493d6bfde09
A few more changes for encryption. Add test that encrypted file can be read.
Bram Moolenaar <bram@vim.org>
parents:
2180
diff
changeset
|
37 static char *crypt_magic[] = {"VimCrypt~01!", "VimCrypt~02!"}; |
c493d6bfde09
A few more changes for encryption. Add test that encrypted file can be read.
Bram Moolenaar <bram@vim.org>
parents:
2180
diff
changeset
|
38 static char crypt_magic_head[] = "VimCrypt~"; |
7 | 39 # define CRYPT_MAGIC_LEN 12 /* must be multiple of 4! */ |
2204
c493d6bfde09
A few more changes for encryption. Add test that encrypted file can be read.
Bram Moolenaar <bram@vim.org>
parents:
2180
diff
changeset
|
40 static int crypt_seed_len[] = {0, 8}; |
2180
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
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41 #define CRYPT_SEED_LEN_MAX 8 |
7 | 42 #endif |
43 | |
44 /* Is there any system that doesn't have access()? */ | |
574 | 45 #define USE_MCH_ACCESS |
7 | 46 |
1313 | 47 #if defined(sun) && defined(S_ISCHR) |
48 # define OPEN_CHR_FILES | |
49 static int is_dev_fd_file(char_u *fname); | |
50 #endif | |
7 | 51 #ifdef FEAT_MBYTE |
52 static char_u *next_fenc __ARGS((char_u **pp)); | |
53 # ifdef FEAT_EVAL | |
54 static char_u *readfile_charconvert __ARGS((char_u *fname, char_u *fenc, int *fdp)); | |
55 # endif | |
56 #endif | |
57 #ifdef FEAT_VIMINFO | |
58 static void check_marks_read __ARGS((void)); | |
59 #endif | |
60 #ifdef FEAT_CRYPT | |
2180
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
61 static int get_crypt_method __ARGS((char *ptr, int len)); |
2204
c493d6bfde09
A few more changes for encryption. Add test that encrypted file can be read.
Bram Moolenaar <bram@vim.org>
parents:
2180
diff
changeset
|
62 static char_u *check_for_cryptkey __ARGS((char_u *cryptkey, char_u *ptr, long *sizep, long *filesizep, int newfile, int *did_ask)); |
7 | 63 #endif |
64 #ifdef UNIX | |
65 static void set_file_time __ARGS((char_u *fname, time_t atime, time_t mtime)); | |
66 #endif | |
633 | 67 static int set_rw_fname __ARGS((char_u *fname, char_u *sfname)); |
7 | 68 static int msg_add_fileformat __ARGS((int eol_type)); |
69 static void msg_add_eol __ARGS((void)); | |
70 static int check_mtime __ARGS((buf_T *buf, struct stat *s)); | |
71 static int time_differs __ARGS((long t1, long t2)); | |
72 #ifdef FEAT_AUTOCMD | |
661 | 73 static int apply_autocmds_exarg __ARGS((event_T event, char_u *fname, char_u *fname_io, int force, buf_T *buf, exarg_T *eap)); |
676 | 74 static int au_find_group __ARGS((char_u *name)); |
75 | |
76 # define AUGROUP_DEFAULT -1 /* default autocmd group */ | |
1834 | 77 # define AUGROUP_ERROR -2 /* erroneous autocmd group */ |
676 | 78 # define AUGROUP_ALL -3 /* all autocmd groups */ |
7 | 79 #endif |
80 | |
81 #if defined(FEAT_CRYPT) || defined(FEAT_MBYTE) | |
82 # define HAS_BW_FLAGS | |
83 # define FIO_LATIN1 0x01 /* convert Latin1 */ | |
84 # define FIO_UTF8 0x02 /* convert UTF-8 */ | |
85 # define FIO_UCS2 0x04 /* convert UCS-2 */ | |
86 # define FIO_UCS4 0x08 /* convert UCS-4 */ | |
87 # define FIO_UTF16 0x10 /* convert UTF-16 */ | |
88 # ifdef WIN3264 | |
89 # define FIO_CODEPAGE 0x20 /* convert MS-Windows codepage */ | |
90 # define FIO_PUT_CP(x) (((x) & 0xffff) << 16) /* put codepage in top word */ | |
91 # define FIO_GET_CP(x) (((x)>>16) & 0xffff) /* get codepage from top word */ | |
92 # endif | |
93 # ifdef MACOS_X | |
94 # define FIO_MACROMAN 0x20 /* convert MacRoman */ | |
95 # endif | |
96 # define FIO_ENDIAN_L 0x80 /* little endian */ | |
97 # define FIO_ENCRYPTED 0x1000 /* encrypt written bytes */ | |
98 # define FIO_NOCONVERT 0x2000 /* skip encoding conversion */ | |
99 # define FIO_UCSBOM 0x4000 /* check for BOM at start of file */ | |
100 # define FIO_ALL -1 /* allow all formats */ | |
101 #endif | |
102 | |
103 /* When converting, a read() or write() may leave some bytes to be converted | |
104 * for the next call. The value is guessed... */ | |
105 #define CONV_RESTLEN 30 | |
106 | |
107 /* We have to guess how much a sequence of bytes may expand when converting | |
108 * with iconv() to be able to allocate a buffer. */ | |
109 #define ICONV_MULT 8 | |
110 | |
111 /* | |
112 * Structure to pass arguments from buf_write() to buf_write_bytes(). | |
113 */ | |
114 struct bw_info | |
115 { | |
116 int bw_fd; /* file descriptor */ | |
117 char_u *bw_buf; /* buffer with data to be written */ | |
1411 | 118 int bw_len; /* length of data */ |
7 | 119 #ifdef HAS_BW_FLAGS |
120 int bw_flags; /* FIO_ flags */ | |
121 #endif | |
122 #ifdef FEAT_MBYTE | |
123 char_u bw_rest[CONV_RESTLEN]; /* not converted bytes */ | |
124 int bw_restlen; /* nr of bytes in bw_rest[] */ | |
125 int bw_first; /* first write call */ | |
126 char_u *bw_conv_buf; /* buffer for writing converted chars */ | |
127 int bw_conv_buflen; /* size of bw_conv_buf */ | |
128 int bw_conv_error; /* set for conversion error */ | |
1947 | 129 linenr_T bw_conv_error_lnum; /* first line with error or zero */ |
130 linenr_T bw_start_lnum; /* line number at start of buffer */ | |
7 | 131 # ifdef USE_ICONV |
132 iconv_t bw_iconv_fd; /* descriptor for iconv() or -1 */ | |
133 # endif | |
134 #endif | |
135 }; | |
136 | |
137 static int buf_write_bytes __ARGS((struct bw_info *ip)); | |
138 | |
139 #ifdef FEAT_MBYTE | |
595 | 140 static linenr_T readfile_linenr __ARGS((linenr_T linecnt, char_u *p, char_u *endp)); |
7 | 141 static int ucs2bytes __ARGS((unsigned c, char_u **pp, int flags)); |
1948 | 142 static int need_conversion __ARGS((char_u *fenc)); |
7 | 143 static int get_fio_flags __ARGS((char_u *ptr)); |
144 static char_u *check_for_bom __ARGS((char_u *p, long size, int *lenp, int flags)); | |
145 static int make_bom __ARGS((char_u *buf, char_u *name)); | |
146 # ifdef WIN3264 | |
147 static int get_win_fio_flags __ARGS((char_u *ptr)); | |
148 # endif | |
149 # ifdef MACOS_X | |
150 static int get_mac_fio_flags __ARGS((char_u *ptr)); | |
151 # endif | |
152 #endif | |
153 static int move_lines __ARGS((buf_T *frombuf, buf_T *tobuf)); | |
2006 | 154 #ifdef TEMPDIRNAMES |
1997 | 155 static void vim_settempdir __ARGS((char_u *tempdir)); |
2006 | 156 #endif |
1834 | 157 #ifdef FEAT_AUTOCMD |
158 static char *e_auchangedbuf = N_("E812: Autocommands changed buffer or buffer name"); | |
159 #endif | |
595 | 160 |
7 | 161 void |
162 filemess(buf, name, s, attr) | |
163 buf_T *buf; | |
164 char_u *name; | |
165 char_u *s; | |
166 int attr; | |
167 { | |
168 int msg_scroll_save; | |
169 | |
170 if (msg_silent != 0) | |
171 return; | |
172 msg_add_fname(buf, name); /* put file name in IObuff with quotes */ | |
173 /* If it's extremely long, truncate it. */ | |
174 if (STRLEN(IObuff) > IOSIZE - 80) | |
175 IObuff[IOSIZE - 80] = NUL; | |
176 STRCAT(IObuff, s); | |
177 /* | |
178 * For the first message may have to start a new line. | |
179 * For further ones overwrite the previous one, reset msg_scroll before | |
180 * calling filemess(). | |
181 */ | |
182 msg_scroll_save = msg_scroll; | |
183 if (shortmess(SHM_OVERALL) && !exiting && p_verbose == 0) | |
184 msg_scroll = FALSE; | |
185 if (!msg_scroll) /* wait a bit when overwriting an error msg */ | |
186 check_for_delay(FALSE); | |
187 msg_start(); | |
188 msg_scroll = msg_scroll_save; | |
189 msg_scrolled_ign = TRUE; | |
190 /* may truncate the message to avoid a hit-return prompt */ | |
191 msg_outtrans_attr(msg_may_trunc(FALSE, IObuff), attr); | |
192 msg_clr_eos(); | |
193 out_flush(); | |
194 msg_scrolled_ign = FALSE; | |
195 } | |
196 | |
197 /* | |
198 * Read lines from file "fname" into the buffer after line "from". | |
199 * | |
200 * 1. We allocate blocks with lalloc, as big as possible. | |
201 * 2. Each block is filled with characters from the file with a single read(). | |
202 * 3. The lines are inserted in the buffer with ml_append(). | |
203 * | |
204 * (caller must check that fname != NULL, unless READ_STDIN is used) | |
205 * | |
206 * "lines_to_skip" is the number of lines that must be skipped | |
207 * "lines_to_read" is the number of lines that are appended | |
208 * When not recovering lines_to_skip is 0 and lines_to_read MAXLNUM. | |
209 * | |
210 * flags: | |
211 * READ_NEW starting to edit a new buffer | |
212 * READ_FILTER reading filter output | |
213 * READ_STDIN read from stdin instead of a file | |
214 * READ_BUFFER read from curbuf instead of a file (converting after reading | |
215 * stdin) | |
216 * READ_DUMMY read into a dummy buffer (to check if file contents changed) | |
217 * | |
218 * return FAIL for failure, OK otherwise | |
219 */ | |
220 int | |
221 readfile(fname, sfname, from, lines_to_skip, lines_to_read, eap, flags) | |
222 char_u *fname; | |
223 char_u *sfname; | |
224 linenr_T from; | |
225 linenr_T lines_to_skip; | |
226 linenr_T lines_to_read; | |
227 exarg_T *eap; /* can be NULL! */ | |
228 int flags; | |
229 { | |
230 int fd = 0; | |
231 int newfile = (flags & READ_NEW); | |
232 int check_readonly; | |
233 int filtering = (flags & READ_FILTER); | |
234 int read_stdin = (flags & READ_STDIN); | |
235 int read_buffer = (flags & READ_BUFFER); | |
1486 | 236 int set_options = newfile || read_buffer |
237 || (eap != NULL && eap->read_edit); | |
7 | 238 linenr_T read_buf_lnum = 1; /* next line to read from curbuf */ |
239 colnr_T read_buf_col = 0; /* next char to read from this line */ | |
240 char_u c; | |
241 linenr_T lnum = from; | |
242 char_u *ptr = NULL; /* pointer into read buffer */ | |
243 char_u *buffer = NULL; /* read buffer */ | |
244 char_u *new_buffer = NULL; /* init to shut up gcc */ | |
245 char_u *line_start = NULL; /* init to shut up gcc */ | |
246 int wasempty; /* buffer was empty before reading */ | |
247 colnr_T len; | |
248 long size = 0; | |
249 char_u *p; | |
250 long filesize = 0; | |
251 int skip_read = FALSE; | |
252 #ifdef FEAT_CRYPT | |
253 char_u *cryptkey = NULL; | |
2204
c493d6bfde09
A few more changes for encryption. Add test that encrypted file can be read.
Bram Moolenaar <bram@vim.org>
parents:
2180
diff
changeset
|
254 int did_ask_for_key = FALSE; |
7 | 255 #endif |
256 int split = 0; /* number of split lines */ | |
257 #define UNKNOWN 0x0fffffff /* file size is unknown */ | |
258 linenr_T linecnt; | |
259 int error = FALSE; /* errors encountered */ | |
260 int ff_error = EOL_UNKNOWN; /* file format with errors */ | |
261 long linerest = 0; /* remaining chars in line */ | |
262 #ifdef UNIX | |
263 int perm = 0; | |
264 int swap_mode = -1; /* protection bits for swap file */ | |
265 #else | |
266 int perm; | |
267 #endif | |
268 int fileformat = 0; /* end-of-line format */ | |
269 int keep_fileformat = FALSE; | |
270 struct stat st; | |
271 int file_readonly; | |
272 linenr_T skip_count = 0; | |
273 linenr_T read_count = 0; | |
274 int msg_save = msg_scroll; | |
275 linenr_T read_no_eol_lnum = 0; /* non-zero lnum when last line of | |
276 * last read was missing the eol */ | |
277 int try_mac = (vim_strchr(p_ffs, 'm') != NULL); | |
278 int try_dos = (vim_strchr(p_ffs, 'd') != NULL); | |
279 int try_unix = (vim_strchr(p_ffs, 'x') != NULL); | |
280 int file_rewind = FALSE; | |
281 #ifdef FEAT_MBYTE | |
282 int can_retry; | |
595 | 283 linenr_T conv_error = 0; /* line nr with conversion error */ |
284 linenr_T illegal_byte = 0; /* line nr with illegal byte */ | |
7 | 285 int keep_dest_enc = FALSE; /* don't retry when char doesn't fit |
286 in destination encoding */ | |
595 | 287 int bad_char_behavior = BAD_REPLACE; |
288 /* BAD_KEEP, BAD_DROP or character to | |
289 * replace with */ | |
7 | 290 char_u *tmpname = NULL; /* name of 'charconvert' output file */ |
291 int fio_flags = 0; | |
292 char_u *fenc; /* fileencoding to use */ | |
293 int fenc_alloced; /* fenc_next is in allocated memory */ | |
294 char_u *fenc_next = NULL; /* next item in 'fencs' or NULL */ | |
295 int advance_fenc = FALSE; | |
296 long real_size = 0; | |
297 # ifdef USE_ICONV | |
298 iconv_t iconv_fd = (iconv_t)-1; /* descriptor for iconv() or -1 */ | |
299 # ifdef FEAT_EVAL | |
300 int did_iconv = FALSE; /* TRUE when iconv() failed and trying | |
301 'charconvert' next */ | |
302 # endif | |
303 # endif | |
304 int converted = FALSE; /* TRUE if conversion done */ | |
305 int notconverted = FALSE; /* TRUE if conversion wanted but it | |
306 wasn't possible */ | |
307 char_u conv_rest[CONV_RESTLEN]; | |
308 int conv_restlen = 0; /* nr of bytes in conv_rest[] */ | |
309 #endif | |
310 | |
1834 | 311 #ifdef FEAT_AUTOCMD |
312 /* Remember the initial values of curbuf, curbuf->b_ffname and | |
313 * curbuf->b_fname to detect whether they are altered as a result of | |
314 * executing nasty autocommands. Also check if "fname" and "sfname" | |
315 * point to one of these values. */ | |
316 buf_T *old_curbuf = curbuf; | |
317 char_u *old_b_ffname = curbuf->b_ffname; | |
318 char_u *old_b_fname = curbuf->b_fname; | |
319 int using_b_ffname = (fname == curbuf->b_ffname) | |
320 || (sfname == curbuf->b_ffname); | |
321 int using_b_fname = (fname == curbuf->b_fname) | |
322 || (sfname == curbuf->b_fname); | |
323 #endif | |
7 | 324 write_no_eol_lnum = 0; /* in case it was set by the previous read */ |
325 | |
326 /* | |
327 * If there is no file name yet, use the one for the read file. | |
328 * BF_NOTEDITED is set to reflect this. | |
329 * Don't do this for a read from a filter. | |
330 * Only do this when 'cpoptions' contains the 'f' flag. | |
331 */ | |
332 if (curbuf->b_ffname == NULL | |
333 && !filtering | |
334 && fname != NULL | |
335 && vim_strchr(p_cpo, CPO_FNAMER) != NULL | |
336 && !(flags & READ_DUMMY)) | |
337 { | |
633 | 338 if (set_rw_fname(fname, sfname) == FAIL) |
339 return FAIL; | |
7 | 340 } |
341 | |
167 | 342 /* After reading a file the cursor line changes but we don't want to |
343 * display the line. */ | |
344 ex_no_reprint = TRUE; | |
345 | |
968 | 346 /* don't display the file info for another buffer now */ |
347 need_fileinfo = FALSE; | |
348 | |
7 | 349 /* |
350 * For Unix: Use the short file name whenever possible. | |
351 * Avoids problems with networks and when directory names are changed. | |
352 * Don't do this for MS-DOS, a "cd" in a sub-shell may have moved us to | |
353 * another directory, which we don't detect. | |
354 */ | |
355 if (sfname == NULL) | |
356 sfname = fname; | |
357 #if defined(UNIX) || defined(__EMX__) | |
358 fname = sfname; | |
359 #endif | |
360 | |
361 #ifdef FEAT_AUTOCMD | |
362 /* | |
363 * The BufReadCmd and FileReadCmd events intercept the reading process by | |
364 * executing the associated commands instead. | |
365 */ | |
366 if (!filtering && !read_stdin && !read_buffer) | |
367 { | |
368 pos_T pos; | |
369 | |
370 pos = curbuf->b_op_start; | |
371 | |
372 /* Set '[ mark to the line above where the lines go (line 1 if zero). */ | |
373 curbuf->b_op_start.lnum = ((from == 0) ? 1 : from); | |
374 curbuf->b_op_start.col = 0; | |
375 | |
376 if (newfile) | |
377 { | |
378 if (apply_autocmds_exarg(EVENT_BUFREADCMD, NULL, sfname, | |
379 FALSE, curbuf, eap)) | |
380 #ifdef FEAT_EVAL | |
381 return aborting() ? FAIL : OK; | |
382 #else | |
383 return OK; | |
384 #endif | |
385 } | |
386 else if (apply_autocmds_exarg(EVENT_FILEREADCMD, sfname, sfname, | |
387 FALSE, NULL, eap)) | |
388 #ifdef FEAT_EVAL | |
389 return aborting() ? FAIL : OK; | |
390 #else | |
391 return OK; | |
392 #endif | |
393 | |
394 curbuf->b_op_start = pos; | |
395 } | |
396 #endif | |
397 | |
398 if ((shortmess(SHM_OVER) || curbuf->b_help) && p_verbose == 0) | |
399 msg_scroll = FALSE; /* overwrite previous file message */ | |
400 else | |
401 msg_scroll = TRUE; /* don't overwrite previous file message */ | |
402 | |
403 /* | |
404 * If the name ends in a path separator, we can't open it. Check here, | |
405 * because reading the file may actually work, but then creating the swap | |
406 * file may destroy it! Reported on MS-DOS and Win 95. | |
407 * If the name is too long we might crash further on, quit here. | |
408 */ | |
23 | 409 if (fname != NULL && *fname != NUL) |
410 { | |
39 | 411 p = fname + STRLEN(fname); |
412 if (after_pathsep(fname, p) || STRLEN(fname) >= MAXPATHL) | |
23 | 413 { |
414 filemess(curbuf, fname, (char_u *)_("Illegal file name"), 0); | |
415 msg_end(); | |
416 msg_scroll = msg_save; | |
417 return FAIL; | |
418 } | |
7 | 419 } |
420 | |
421 #ifdef UNIX | |
422 /* | |
423 * On Unix it is possible to read a directory, so we have to | |
424 * check for it before the mch_open(). | |
425 */ | |
426 if (!read_stdin && !read_buffer) | |
427 { | |
428 perm = mch_getperm(fname); | |
429 if (perm >= 0 && !S_ISREG(perm) /* not a regular file ... */ | |
430 # ifdef S_ISFIFO | |
431 && !S_ISFIFO(perm) /* ... or fifo */ | |
432 # endif | |
433 # ifdef S_ISSOCK | |
434 && !S_ISSOCK(perm) /* ... or socket */ | |
435 # endif | |
1313 | 436 # ifdef OPEN_CHR_FILES |
437 && !(S_ISCHR(perm) && is_dev_fd_file(fname)) | |
438 /* ... or a character special file named /dev/fd/<n> */ | |
439 # endif | |
7 | 440 ) |
441 { | |
442 if (S_ISDIR(perm)) | |
443 filemess(curbuf, fname, (char_u *)_("is a directory"), 0); | |
444 else | |
445 filemess(curbuf, fname, (char_u *)_("is not a file"), 0); | |
446 msg_end(); | |
447 msg_scroll = msg_save; | |
448 return FAIL; | |
449 } | |
1006 | 450 |
451 # if defined(MSDOS) || defined(MSWIN) || defined(OS2) | |
452 /* | |
453 * MS-Windows allows opening a device, but we will probably get stuck | |
454 * trying to read it. | |
455 */ | |
456 if (!p_odev && mch_nodetype(fname) == NODE_WRITABLE) | |
457 { | |
1303 | 458 filemess(curbuf, fname, (char_u *)_("is a device (disabled with 'opendevice' option)"), 0); |
1006 | 459 msg_end(); |
460 msg_scroll = msg_save; | |
461 return FAIL; | |
462 } | |
463 # endif | |
1004 | 464 } |
465 #endif | |
466 | |
7 | 467 /* set default 'fileformat' */ |
819 | 468 if (set_options) |
7 | 469 { |
470 if (eap != NULL && eap->force_ff != 0) | |
471 set_fileformat(get_fileformat_force(curbuf, eap), OPT_LOCAL); | |
472 else if (*p_ffs != NUL) | |
473 set_fileformat(default_fileformat(), OPT_LOCAL); | |
474 } | |
475 | |
476 /* set or reset 'binary' */ | |
477 if (eap != NULL && eap->force_bin != 0) | |
478 { | |
479 int oldval = curbuf->b_p_bin; | |
480 | |
481 curbuf->b_p_bin = (eap->force_bin == FORCE_BIN); | |
482 set_options_bin(oldval, curbuf->b_p_bin, OPT_LOCAL); | |
483 } | |
484 | |
485 /* | |
486 * When opening a new file we take the readonly flag from the file. | |
487 * Default is r/w, can be set to r/o below. | |
488 * Don't reset it when in readonly mode | |
489 * Only set/reset b_p_ro when BF_CHECK_RO is set. | |
490 */ | |
491 check_readonly = (newfile && (curbuf->b_flags & BF_CHECK_RO)); | |
164 | 492 if (check_readonly && !readonlymode) |
7 | 493 curbuf->b_p_ro = FALSE; |
494 | |
495 if (newfile && !read_stdin && !read_buffer) | |
496 { | |
497 /* Remember time of file. | |
498 * For RISCOS, also remember the filetype. | |
499 */ | |
500 if (mch_stat((char *)fname, &st) >= 0) | |
501 { | |
502 buf_store_time(curbuf, &st, fname); | |
503 curbuf->b_mtime_read = curbuf->b_mtime; | |
504 | |
505 #if defined(RISCOS) && defined(FEAT_OSFILETYPE) | |
506 /* Read the filetype into the buffer local filetype option. */ | |
507 mch_read_filetype(fname); | |
508 #endif | |
509 #ifdef UNIX | |
510 /* | |
511 * Use the protection bits of the original file for the swap file. | |
512 * This makes it possible for others to read the name of the | |
513 * edited file from the swapfile, but only if they can read the | |
514 * edited file. | |
515 * Remove the "write" and "execute" bits for group and others | |
516 * (they must not write the swapfile). | |
517 * Add the "read" and "write" bits for the user, otherwise we may | |
518 * not be able to write to the file ourselves. | |
519 * Setting the bits is done below, after creating the swap file. | |
520 */ | |
521 swap_mode = (st.st_mode & 0644) | 0600; | |
522 #endif | |
523 #ifdef FEAT_CW_EDITOR | |
524 /* Get the FSSpec on MacOS | |
525 * TODO: Update it properly when the buffer name changes | |
526 */ | |
527 (void)GetFSSpecFromPath(curbuf->b_ffname, &curbuf->b_FSSpec); | |
528 #endif | |
529 #ifdef VMS | |
530 curbuf->b_fab_rfm = st.st_fab_rfm; | |
22 | 531 curbuf->b_fab_rat = st.st_fab_rat; |
532 curbuf->b_fab_mrs = st.st_fab_mrs; | |
7 | 533 #endif |
534 } | |
535 else | |
536 { | |
537 curbuf->b_mtime = 0; | |
538 curbuf->b_mtime_read = 0; | |
539 curbuf->b_orig_size = 0; | |
540 curbuf->b_orig_mode = 0; | |
541 } | |
542 | |
543 /* Reset the "new file" flag. It will be set again below when the | |
544 * file doesn't exist. */ | |
545 curbuf->b_flags &= ~(BF_NEW | BF_NEW_W); | |
546 } | |
547 | |
548 /* | |
549 * for UNIX: check readonly with perm and mch_access() | |
550 * for RISCOS: same as Unix, otherwise file gets re-datestamped! | |
551 * for MSDOS and Amiga: check readonly by trying to open the file for writing | |
552 */ | |
553 file_readonly = FALSE; | |
554 if (read_stdin) | |
555 { | |
556 #if defined(MSDOS) || defined(MSWIN) || defined(OS2) | |
557 /* Force binary I/O on stdin to avoid CR-LF -> LF conversion. */ | |
558 setmode(0, O_BINARY); | |
559 #endif | |
560 } | |
561 else if (!read_buffer) | |
562 { | |
563 #ifdef USE_MCH_ACCESS | |
564 if ( | |
565 # ifdef UNIX | |
566 !(perm & 0222) || | |
567 # endif | |
568 mch_access((char *)fname, W_OK)) | |
569 file_readonly = TRUE; | |
570 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
571 #else | |
572 if (!newfile | |
573 || readonlymode | |
574 || (fd = mch_open((char *)fname, O_RDWR | O_EXTRA, 0)) < 0) | |
575 { | |
576 file_readonly = TRUE; | |
577 /* try to open ro */ | |
578 fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
579 } | |
580 #endif | |
581 } | |
582 | |
583 if (fd < 0) /* cannot open at all */ | |
584 { | |
585 #ifndef UNIX | |
586 int isdir_f; | |
587 #endif | |
588 msg_scroll = msg_save; | |
589 #ifndef UNIX | |
590 /* | |
591 * On MSDOS and Amiga we can't open a directory, check here. | |
592 */ | |
593 isdir_f = (mch_isdir(fname)); | |
594 perm = mch_getperm(fname); /* check if the file exists */ | |
595 if (isdir_f) | |
596 { | |
597 filemess(curbuf, sfname, (char_u *)_("is a directory"), 0); | |
598 curbuf->b_p_ro = TRUE; /* must use "w!" now */ | |
599 } | |
600 else | |
601 #endif | |
602 if (newfile) | |
603 { | |
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604 if (perm < 0 |
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605 #ifdef ENOENT |
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606 && errno == ENOENT |
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607 #endif |
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608 ) |
7 | 609 { |
610 /* | |
611 * Set the 'new-file' flag, so that when the file has | |
612 * been created by someone else, a ":w" will complain. | |
613 */ | |
614 curbuf->b_flags |= BF_NEW; | |
615 | |
616 /* Create a swap file now, so that other Vims are warned | |
617 * that we are editing this file. Don't do this for a | |
618 * "nofile" or "nowrite" buffer type. */ | |
619 #ifdef FEAT_QUICKFIX | |
620 if (!bt_dontwrite(curbuf)) | |
621 #endif | |
1834 | 622 { |
7 | 623 check_need_swap(newfile); |
1834 | 624 #ifdef FEAT_AUTOCMD |
625 /* SwapExists autocommand may mess things up */ | |
626 if (curbuf != old_curbuf | |
627 || (using_b_ffname | |
628 && (old_b_ffname != curbuf->b_ffname)) | |
629 || (using_b_fname | |
630 && (old_b_fname != curbuf->b_fname))) | |
631 { | |
632 EMSG(_(e_auchangedbuf)); | |
633 return FAIL; | |
634 } | |
635 #endif | |
636 } | |
592 | 637 if (dir_of_file_exists(fname)) |
638 filemess(curbuf, sfname, (char_u *)_("[New File]"), 0); | |
639 else | |
640 filemess(curbuf, sfname, | |
641 (char_u *)_("[New DIRECTORY]"), 0); | |
7 | 642 #ifdef FEAT_VIMINFO |
643 /* Even though this is a new file, it might have been | |
644 * edited before and deleted. Get the old marks. */ | |
645 check_marks_read(); | |
646 #endif | |
647 #ifdef FEAT_MBYTE | |
648 if (eap != NULL && eap->force_enc != 0) | |
649 { | |
650 /* set forced 'fileencoding' */ | |
651 fenc = enc_canonize(eap->cmd + eap->force_enc); | |
652 if (fenc != NULL) | |
653 set_string_option_direct((char_u *)"fenc", -1, | |
694 | 654 fenc, OPT_FREE|OPT_LOCAL, 0); |
7 | 655 vim_free(fenc); |
656 } | |
657 #endif | |
658 #ifdef FEAT_AUTOCMD | |
659 apply_autocmds_exarg(EVENT_BUFNEWFILE, sfname, sfname, | |
660 FALSE, curbuf, eap); | |
661 #endif | |
662 /* remember the current fileformat */ | |
663 save_file_ff(curbuf); | |
664 | |
665 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) | |
666 if (aborting()) /* autocmds may abort script processing */ | |
667 return FAIL; | |
668 #endif | |
669 return OK; /* a new file is not an error */ | |
670 } | |
671 else | |
672 { | |
550 | 673 filemess(curbuf, sfname, (char_u *)( |
674 # ifdef EFBIG | |
675 (errno == EFBIG) ? _("[File too big]") : | |
676 # endif | |
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677 # ifdef EOVERFLOW |
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678 (errno == EOVERFLOW) ? _("[File too big]") : |
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679 # endif |
550 | 680 _("[Permission Denied]")), 0); |
7 | 681 curbuf->b_p_ro = TRUE; /* must use "w!" now */ |
682 } | |
683 } | |
684 | |
685 return FAIL; | |
686 } | |
687 | |
688 /* | |
689 * Only set the 'ro' flag for readonly files the first time they are | |
690 * loaded. Help files always get readonly mode | |
691 */ | |
692 if ((check_readonly && file_readonly) || curbuf->b_help) | |
693 curbuf->b_p_ro = TRUE; | |
694 | |
819 | 695 if (set_options) |
7 | 696 { |
1486 | 697 /* Don't change 'eol' if reading from buffer as it will already be |
698 * correctly set when reading stdin. */ | |
699 if (!read_buffer) | |
700 { | |
701 curbuf->b_p_eol = TRUE; | |
702 curbuf->b_start_eol = TRUE; | |
703 } | |
7 | 704 #ifdef FEAT_MBYTE |
705 curbuf->b_p_bomb = FALSE; | |
1352 | 706 curbuf->b_start_bomb = FALSE; |
7 | 707 #endif |
708 } | |
709 | |
710 /* Create a swap file now, so that other Vims are warned that we are | |
711 * editing this file. | |
712 * Don't do this for a "nofile" or "nowrite" buffer type. */ | |
713 #ifdef FEAT_QUICKFIX | |
714 if (!bt_dontwrite(curbuf)) | |
715 #endif | |
716 { | |
717 check_need_swap(newfile); | |
1834 | 718 #ifdef FEAT_AUTOCMD |
719 if (!read_stdin && (curbuf != old_curbuf | |
720 || (using_b_ffname && (old_b_ffname != curbuf->b_ffname)) | |
721 || (using_b_fname && (old_b_fname != curbuf->b_fname)))) | |
722 { | |
723 EMSG(_(e_auchangedbuf)); | |
724 if (!read_buffer) | |
725 close(fd); | |
726 return FAIL; | |
727 } | |
728 #endif | |
7 | 729 #ifdef UNIX |
730 /* Set swap file protection bits after creating it. */ | |
1918 | 731 if (swap_mode > 0 && curbuf->b_ml.ml_mfp != NULL |
732 && curbuf->b_ml.ml_mfp->mf_fname != NULL) | |
7 | 733 (void)mch_setperm(curbuf->b_ml.ml_mfp->mf_fname, (long)swap_mode); |
734 #endif | |
735 } | |
736 | |
578 | 737 #if defined(HAS_SWAP_EXISTS_ACTION) |
7 | 738 /* If "Quit" selected at ATTENTION dialog, don't load the file */ |
739 if (swap_exists_action == SEA_QUIT) | |
740 { | |
741 if (!read_buffer && !read_stdin) | |
742 close(fd); | |
743 return FAIL; | |
744 } | |
745 #endif | |
746 | |
747 ++no_wait_return; /* don't wait for return yet */ | |
748 | |
749 /* | |
750 * Set '[ mark to the line above where the lines go (line 1 if zero). | |
751 */ | |
752 curbuf->b_op_start.lnum = ((from == 0) ? 1 : from); | |
753 curbuf->b_op_start.col = 0; | |
754 | |
755 #ifdef FEAT_AUTOCMD | |
756 if (!read_buffer) | |
757 { | |
758 int m = msg_scroll; | |
759 int n = msg_scrolled; | |
760 | |
761 /* | |
762 * The file must be closed again, the autocommands may want to change | |
763 * the file before reading it. | |
764 */ | |
765 if (!read_stdin) | |
766 close(fd); /* ignore errors */ | |
767 | |
768 /* | |
769 * The output from the autocommands should not overwrite anything and | |
770 * should not be overwritten: Set msg_scroll, restore its value if no | |
771 * output was done. | |
772 */ | |
773 msg_scroll = TRUE; | |
774 if (filtering) | |
775 apply_autocmds_exarg(EVENT_FILTERREADPRE, NULL, sfname, | |
776 FALSE, curbuf, eap); | |
777 else if (read_stdin) | |
778 apply_autocmds_exarg(EVENT_STDINREADPRE, NULL, sfname, | |
779 FALSE, curbuf, eap); | |
780 else if (newfile) | |
781 apply_autocmds_exarg(EVENT_BUFREADPRE, NULL, sfname, | |
782 FALSE, curbuf, eap); | |
783 else | |
784 apply_autocmds_exarg(EVENT_FILEREADPRE, sfname, sfname, | |
785 FALSE, NULL, eap); | |
786 if (msg_scrolled == n) | |
787 msg_scroll = m; | |
788 | |
789 #ifdef FEAT_EVAL | |
790 if (aborting()) /* autocmds may abort script processing */ | |
791 { | |
792 --no_wait_return; | |
793 msg_scroll = msg_save; | |
794 curbuf->b_p_ro = TRUE; /* must use "w!" now */ | |
795 return FAIL; | |
796 } | |
797 #endif | |
798 /* | |
799 * Don't allow the autocommands to change the current buffer. | |
800 * Try to re-open the file. | |
1834 | 801 * |
802 * Don't allow the autocommands to change the buffer name either | |
803 * (cd for example) if it invalidates fname or sfname. | |
7 | 804 */ |
805 if (!read_stdin && (curbuf != old_curbuf | |
1834 | 806 || (using_b_ffname && (old_b_ffname != curbuf->b_ffname)) |
807 || (using_b_fname && (old_b_fname != curbuf->b_fname)) | |
7 | 808 || (fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0)) < 0)) |
809 { | |
810 --no_wait_return; | |
811 msg_scroll = msg_save; | |
812 if (fd < 0) | |
813 EMSG(_("E200: *ReadPre autocommands made the file unreadable")); | |
814 else | |
815 EMSG(_("E201: *ReadPre autocommands must not change current buffer")); | |
816 curbuf->b_p_ro = TRUE; /* must use "w!" now */ | |
817 return FAIL; | |
818 } | |
819 } | |
820 #endif /* FEAT_AUTOCMD */ | |
821 | |
822 /* Autocommands may add lines to the file, need to check if it is empty */ | |
823 wasempty = (curbuf->b_ml.ml_flags & ML_EMPTY); | |
824 | |
825 if (!recoverymode && !filtering && !(flags & READ_DUMMY)) | |
826 { | |
827 /* | |
828 * Show the user that we are busy reading the input. Sometimes this | |
829 * may take a while. When reading from stdin another program may | |
830 * still be running, don't move the cursor to the last line, unless | |
831 * always using the GUI. | |
832 */ | |
833 if (read_stdin) | |
834 { | |
835 #ifndef ALWAYS_USE_GUI | |
836 mch_msg(_("Vim: Reading from stdin...\n")); | |
837 #endif | |
838 #ifdef FEAT_GUI | |
839 /* Also write a message in the GUI window, if there is one. */ | |
840 if (gui.in_use && !gui.dying && !gui.starting) | |
841 { | |
842 p = (char_u *)_("Reading from stdin..."); | |
843 gui_write(p, (int)STRLEN(p)); | |
844 } | |
845 #endif | |
846 } | |
847 else if (!read_buffer) | |
848 filemess(curbuf, sfname, (char_u *)"", 0); | |
849 } | |
850 | |
851 msg_scroll = FALSE; /* overwrite the file message */ | |
852 | |
853 /* | |
854 * Set linecnt now, before the "retry" caused by a wrong guess for | |
855 * fileformat, and after the autocommands, which may change them. | |
856 */ | |
857 linecnt = curbuf->b_ml.ml_line_count; | |
858 | |
859 #ifdef FEAT_MBYTE | |
595 | 860 /* "++bad=" argument. */ |
861 if (eap != NULL && eap->bad_char != 0) | |
612 | 862 { |
595 | 863 bad_char_behavior = eap->bad_char; |
819 | 864 if (set_options) |
612 | 865 curbuf->b_bad_char = eap->bad_char; |
866 } | |
867 else | |
868 curbuf->b_bad_char = 0; | |
595 | 869 |
7 | 870 /* |
595 | 871 * Decide which 'encoding' to use or use first. |
7 | 872 */ |
873 if (eap != NULL && eap->force_enc != 0) | |
874 { | |
875 fenc = enc_canonize(eap->cmd + eap->force_enc); | |
876 fenc_alloced = TRUE; | |
595 | 877 keep_dest_enc = TRUE; |
7 | 878 } |
879 else if (curbuf->b_p_bin) | |
880 { | |
881 fenc = (char_u *)""; /* binary: don't convert */ | |
882 fenc_alloced = FALSE; | |
883 } | |
884 else if (curbuf->b_help) | |
885 { | |
886 char_u firstline[80]; | |
301 | 887 int fc; |
7 | 888 |
889 /* Help files are either utf-8 or latin1. Try utf-8 first, if this | |
890 * fails it must be latin1. | |
891 * Always do this when 'encoding' is "utf-8". Otherwise only do | |
892 * this when needed to avoid [converted] remarks all the time. | |
893 * It is needed when the first line contains non-ASCII characters. | |
894 * That is only in *.??x files. */ | |
895 fenc = (char_u *)"latin1"; | |
896 c = enc_utf8; | |
301 | 897 if (!c && !read_stdin) |
898 { | |
899 fc = fname[STRLEN(fname) - 1]; | |
900 if (TOLOWER_ASC(fc) == 'x') | |
901 { | |
902 /* Read the first line (and a bit more). Immediately rewind to | |
903 * the start of the file. If the read() fails "len" is -1. */ | |
904 len = vim_read(fd, firstline, 80); | |
905 lseek(fd, (off_t)0L, SEEK_SET); | |
906 for (p = firstline; p < firstline + len; ++p) | |
907 if (*p >= 0x80) | |
908 { | |
909 c = TRUE; | |
910 break; | |
911 } | |
912 } | |
7 | 913 } |
914 | |
915 if (c) | |
916 { | |
917 fenc_next = fenc; | |
918 fenc = (char_u *)"utf-8"; | |
919 | |
920 /* When the file is utf-8 but a character doesn't fit in | |
921 * 'encoding' don't retry. In help text editing utf-8 bytes | |
922 * doesn't make sense. */ | |
844 | 923 if (!enc_utf8) |
924 keep_dest_enc = TRUE; | |
7 | 925 } |
926 fenc_alloced = FALSE; | |
927 } | |
928 else if (*p_fencs == NUL) | |
929 { | |
930 fenc = curbuf->b_p_fenc; /* use format from buffer */ | |
931 fenc_alloced = FALSE; | |
932 } | |
933 else | |
934 { | |
935 fenc_next = p_fencs; /* try items in 'fileencodings' */ | |
936 fenc = next_fenc(&fenc_next); | |
937 fenc_alloced = TRUE; | |
938 } | |
939 #endif | |
940 | |
941 /* | |
942 * Jump back here to retry reading the file in different ways. | |
943 * Reasons to retry: | |
944 * - encoding conversion failed: try another one from "fenc_next" | |
945 * - BOM detected and fenc was set, need to setup conversion | |
946 * - "fileformat" check failed: try another | |
947 * | |
948 * Variables set for special retry actions: | |
949 * "file_rewind" Rewind the file to start reading it again. | |
950 * "advance_fenc" Advance "fenc" using "fenc_next". | |
951 * "skip_read" Re-use already read bytes (BOM detected). | |
952 * "did_iconv" iconv() conversion failed, try 'charconvert'. | |
953 * "keep_fileformat" Don't reset "fileformat". | |
954 * | |
955 * Other status indicators: | |
956 * "tmpname" When != NULL did conversion with 'charconvert'. | |
957 * Output file has to be deleted afterwards. | |
958 * "iconv_fd" When != -1 did conversion with iconv(). | |
959 */ | |
960 retry: | |
961 | |
962 if (file_rewind) | |
963 { | |
964 if (read_buffer) | |
965 { | |
966 read_buf_lnum = 1; | |
967 read_buf_col = 0; | |
968 } | |
969 else if (read_stdin || lseek(fd, (off_t)0L, SEEK_SET) != 0) | |
970 { | |
971 /* Can't rewind the file, give up. */ | |
972 error = TRUE; | |
973 goto failed; | |
974 } | |
975 /* Delete the previously read lines. */ | |
976 while (lnum > from) | |
977 ml_delete(lnum--, FALSE); | |
978 file_rewind = FALSE; | |
979 #ifdef FEAT_MBYTE | |
819 | 980 if (set_options) |
1352 | 981 { |
7 | 982 curbuf->b_p_bomb = FALSE; |
1352 | 983 curbuf->b_start_bomb = FALSE; |
984 } | |
595 | 985 conv_error = 0; |
7 | 986 #endif |
987 } | |
988 | |
989 /* | |
990 * When retrying with another "fenc" and the first time "fileformat" | |
991 * will be reset. | |
992 */ | |
993 if (keep_fileformat) | |
994 keep_fileformat = FALSE; | |
995 else | |
996 { | |
997 if (eap != NULL && eap->force_ff != 0) | |
1742 | 998 { |
7 | 999 fileformat = get_fileformat_force(curbuf, eap); |
1742 | 1000 try_unix = try_dos = try_mac = FALSE; |
1001 } | |
7 | 1002 else if (curbuf->b_p_bin) |
1003 fileformat = EOL_UNIX; /* binary: use Unix format */ | |
1004 else if (*p_ffs == NUL) | |
1005 fileformat = get_fileformat(curbuf);/* use format from buffer */ | |
1006 else | |
1007 fileformat = EOL_UNKNOWN; /* detect from file */ | |
1008 } | |
1009 | |
1010 #ifdef FEAT_MBYTE | |
1011 # ifdef USE_ICONV | |
1012 if (iconv_fd != (iconv_t)-1) | |
1013 { | |
1014 /* aborted conversion with iconv(), close the descriptor */ | |
1015 iconv_close(iconv_fd); | |
1016 iconv_fd = (iconv_t)-1; | |
1017 } | |
1018 # endif | |
1019 | |
1020 if (advance_fenc) | |
1021 { | |
1022 /* | |
1023 * Try the next entry in 'fileencodings'. | |
1024 */ | |
1025 advance_fenc = FALSE; | |
1026 | |
1027 if (eap != NULL && eap->force_enc != 0) | |
1028 { | |
1029 /* Conversion given with "++cc=" wasn't possible, read | |
1030 * without conversion. */ | |
1031 notconverted = TRUE; | |
595 | 1032 conv_error = 0; |
7 | 1033 if (fenc_alloced) |
1034 vim_free(fenc); | |
1035 fenc = (char_u *)""; | |
1036 fenc_alloced = FALSE; | |
1037 } | |
1038 else | |
1039 { | |
1040 if (fenc_alloced) | |
1041 vim_free(fenc); | |
1042 if (fenc_next != NULL) | |
1043 { | |
1044 fenc = next_fenc(&fenc_next); | |
1045 fenc_alloced = (fenc_next != NULL); | |
1046 } | |
1047 else | |
1048 { | |
1049 fenc = (char_u *)""; | |
1050 fenc_alloced = FALSE; | |
1051 } | |
1052 } | |
1053 if (tmpname != NULL) | |
1054 { | |
1055 mch_remove(tmpname); /* delete converted file */ | |
1056 vim_free(tmpname); | |
1057 tmpname = NULL; | |
1058 } | |
1059 } | |
1060 | |
1061 /* | |
1948 | 1062 * Conversion may be required when the encoding of the file is different |
1063 * from 'encoding' or 'encoding' is UTF-16, UCS-2 or UCS-4. | |
7 | 1064 */ |
1065 fio_flags = 0; | |
1948 | 1066 converted = need_conversion(fenc); |
1067 if (converted) | |
7 | 1068 { |
1069 | |
1070 /* "ucs-bom" means we need to check the first bytes of the file | |
1071 * for a BOM. */ | |
1072 if (STRCMP(fenc, ENC_UCSBOM) == 0) | |
1073 fio_flags = FIO_UCSBOM; | |
1074 | |
1075 /* | |
1076 * Check if UCS-2/4 or Latin1 to UTF-8 conversion needs to be | |
1077 * done. This is handled below after read(). Prepare the | |
1078 * fio_flags to avoid having to parse the string each time. | |
1079 * Also check for Unicode to Latin1 conversion, because iconv() | |
1080 * appears not to handle this correctly. This works just like | |
1081 * conversion to UTF-8 except how the resulting character is put in | |
1082 * the buffer. | |
1083 */ | |
1084 else if (enc_utf8 || STRCMP(p_enc, "latin1") == 0) | |
1085 fio_flags = get_fio_flags(fenc); | |
1086 | |
1087 # ifdef WIN3264 | |
1088 /* | |
1089 * Conversion from an MS-Windows codepage to UTF-8 or another codepage | |
1090 * is handled with MultiByteToWideChar(). | |
1091 */ | |
1092 if (fio_flags == 0) | |
1093 fio_flags = get_win_fio_flags(fenc); | |
1094 # endif | |
1095 | |
1096 # ifdef MACOS_X | |
1097 /* Conversion from Apple MacRoman to latin1 or UTF-8 */ | |
1098 if (fio_flags == 0) | |
1099 fio_flags = get_mac_fio_flags(fenc); | |
1100 # endif | |
1101 | |
1102 # ifdef USE_ICONV | |
1103 /* | |
1104 * Try using iconv() if we can't convert internally. | |
1105 */ | |
1106 if (fio_flags == 0 | |
1107 # ifdef FEAT_EVAL | |
1108 && !did_iconv | |
1109 # endif | |
1110 ) | |
1111 iconv_fd = (iconv_t)my_iconv_open( | |
1112 enc_utf8 ? (char_u *)"utf-8" : p_enc, fenc); | |
1113 # endif | |
1114 | |
1115 # ifdef FEAT_EVAL | |
1116 /* | |
1117 * Use the 'charconvert' expression when conversion is required | |
1118 * and we can't do it internally or with iconv(). | |
1119 */ | |
1120 if (fio_flags == 0 && !read_stdin && !read_buffer && *p_ccv != NUL | |
1121 # ifdef USE_ICONV | |
1122 && iconv_fd == (iconv_t)-1 | |
1123 # endif | |
1124 ) | |
1125 { | |
1126 # ifdef USE_ICONV | |
1127 did_iconv = FALSE; | |
1128 # endif | |
1129 /* Skip conversion when it's already done (retry for wrong | |
1130 * "fileformat"). */ | |
1131 if (tmpname == NULL) | |
1132 { | |
1133 tmpname = readfile_charconvert(fname, fenc, &fd); | |
1134 if (tmpname == NULL) | |
1135 { | |
1136 /* Conversion failed. Try another one. */ | |
1137 advance_fenc = TRUE; | |
1138 if (fd < 0) | |
1139 { | |
1140 /* Re-opening the original file failed! */ | |
1141 EMSG(_("E202: Conversion made file unreadable!")); | |
1142 error = TRUE; | |
1143 goto failed; | |
1144 } | |
1145 goto retry; | |
1146 } | |
1147 } | |
1148 } | |
1149 else | |
1150 # endif | |
1151 { | |
1152 if (fio_flags == 0 | |
1153 # ifdef USE_ICONV | |
1154 && iconv_fd == (iconv_t)-1 | |
1155 # endif | |
1156 ) | |
1157 { | |
1158 /* Conversion wanted but we can't. | |
1159 * Try the next conversion in 'fileencodings' */ | |
1160 advance_fenc = TRUE; | |
1161 goto retry; | |
1162 } | |
1163 } | |
1164 } | |
1165 | |
595 | 1166 /* Set "can_retry" when it's possible to rewind the file and try with |
7 | 1167 * another "fenc" value. It's FALSE when no other "fenc" to try, reading |
595 | 1168 * stdin or fixed at a specific encoding. */ |
1169 can_retry = (*fenc != NUL && !read_stdin && !keep_dest_enc); | |
7 | 1170 #endif |
1171 | |
1172 if (!skip_read) | |
1173 { | |
1174 linerest = 0; | |
1175 filesize = 0; | |
1176 skip_count = lines_to_skip; | |
1177 read_count = lines_to_read; | |
1178 #ifdef FEAT_MBYTE | |
1179 conv_restlen = 0; | |
1180 #endif | |
1181 } | |
1182 | |
1183 while (!error && !got_int) | |
1184 { | |
1185 /* | |
1186 * We allocate as much space for the file as we can get, plus | |
1187 * space for the old line plus room for one terminating NUL. | |
1188 * The amount is limited by the fact that read() only can read | |
1189 * upto max_unsigned characters (and other things). | |
1190 */ | |
1191 #if SIZEOF_INT <= 2 | |
1192 if (linerest >= 0x7ff0) | |
1193 { | |
1194 ++split; | |
1195 *ptr = NL; /* split line by inserting a NL */ | |
1196 size = 1; | |
1197 } | |
1198 else | |
1199 #endif | |
1200 { | |
1201 if (!skip_read) | |
1202 { | |
1203 #if SIZEOF_INT > 2 | |
1076 | 1204 # if defined(SSIZE_MAX) && (SSIZE_MAX < 0x10000L) |
7 | 1205 size = SSIZE_MAX; /* use max I/O size, 52K */ |
1206 # else | |
1207 size = 0x10000L; /* use buffer >= 64K */ | |
1208 # endif | |
1209 #else | |
1210 size = 0x7ff0L - linerest; /* limit buffer to 32K */ | |
1211 #endif | |
1212 | |
836 | 1213 for ( ; size >= 10; size = (long)((long_u)size >> 1)) |
7 | 1214 { |
1215 if ((new_buffer = lalloc((long_u)(size + linerest + 1), | |
1216 FALSE)) != NULL) | |
1217 break; | |
1218 } | |
1219 if (new_buffer == NULL) | |
1220 { | |
1221 do_outofmem_msg((long_u)(size * 2 + linerest + 1)); | |
1222 error = TRUE; | |
1223 break; | |
1224 } | |
1225 if (linerest) /* copy characters from the previous buffer */ | |
1226 mch_memmove(new_buffer, ptr - linerest, (size_t)linerest); | |
1227 vim_free(buffer); | |
1228 buffer = new_buffer; | |
1229 ptr = buffer + linerest; | |
1230 line_start = buffer; | |
1231 | |
1232 #ifdef FEAT_MBYTE | |
1233 /* May need room to translate into. | |
1234 * For iconv() we don't really know the required space, use a | |
1235 * factor ICONV_MULT. | |
1236 * latin1 to utf-8: 1 byte becomes up to 2 bytes | |
1237 * utf-16 to utf-8: 2 bytes become up to 3 bytes, 4 bytes | |
1238 * become up to 4 bytes, size must be multiple of 2 | |
1239 * ucs-2 to utf-8: 2 bytes become up to 3 bytes, size must be | |
1240 * multiple of 2 | |
1241 * ucs-4 to utf-8: 4 bytes become up to 6 bytes, size must be | |
1242 * multiple of 4 */ | |
835 | 1243 real_size = (int)size; |
7 | 1244 # ifdef USE_ICONV |
1245 if (iconv_fd != (iconv_t)-1) | |
1246 size = size / ICONV_MULT; | |
1247 else | |
1248 # endif | |
1249 if (fio_flags & FIO_LATIN1) | |
1250 size = size / 2; | |
1251 else if (fio_flags & (FIO_UCS2 | FIO_UTF16)) | |
1252 size = (size * 2 / 3) & ~1; | |
1253 else if (fio_flags & FIO_UCS4) | |
1254 size = (size * 2 / 3) & ~3; | |
1255 else if (fio_flags == FIO_UCSBOM) | |
1256 size = size / ICONV_MULT; /* worst case */ | |
1257 # ifdef WIN3264 | |
1258 else if (fio_flags & FIO_CODEPAGE) | |
1259 size = size / ICONV_MULT; /* also worst case */ | |
1260 # endif | |
1261 # ifdef MACOS_X | |
1262 else if (fio_flags & FIO_MACROMAN) | |
1263 size = size / ICONV_MULT; /* also worst case */ | |
1264 # endif | |
1265 #endif | |
1266 | |
1267 #ifdef FEAT_MBYTE | |
1268 if (conv_restlen > 0) | |
1269 { | |
1270 /* Insert unconverted bytes from previous line. */ | |
1271 mch_memmove(ptr, conv_rest, conv_restlen); | |
1272 ptr += conv_restlen; | |
1273 size -= conv_restlen; | |
1274 } | |
1275 #endif | |
1276 | |
1277 if (read_buffer) | |
1278 { | |
1279 /* | |
1280 * Read bytes from curbuf. Used for converting text read | |
1281 * from stdin. | |
1282 */ | |
1283 if (read_buf_lnum > from) | |
1284 size = 0; | |
1285 else | |
1286 { | |
1287 int n, ni; | |
1288 long tlen; | |
1289 | |
1290 tlen = 0; | |
1291 for (;;) | |
1292 { | |
1293 p = ml_get(read_buf_lnum) + read_buf_col; | |
1294 n = (int)STRLEN(p); | |
1295 if ((int)tlen + n + 1 > size) | |
1296 { | |
1297 /* Filled up to "size", append partial line. | |
1298 * Change NL to NUL to reverse the effect done | |
1299 * below. */ | |
835 | 1300 n = (int)(size - tlen); |
7 | 1301 for (ni = 0; ni < n; ++ni) |
1302 { | |
1303 if (p[ni] == NL) | |
1304 ptr[tlen++] = NUL; | |
1305 else | |
1306 ptr[tlen++] = p[ni]; | |
1307 } | |
1308 read_buf_col += n; | |
1309 break; | |
1310 } | |
1311 else | |
1312 { | |
1313 /* Append whole line and new-line. Change NL | |
1314 * to NUL to reverse the effect done below. */ | |
1315 for (ni = 0; ni < n; ++ni) | |
1316 { | |
1317 if (p[ni] == NL) | |
1318 ptr[tlen++] = NUL; | |
1319 else | |
1320 ptr[tlen++] = p[ni]; | |
1321 } | |
1322 ptr[tlen++] = NL; | |
1323 read_buf_col = 0; | |
1324 if (++read_buf_lnum > from) | |
1325 { | |
1326 /* When the last line didn't have an | |
1327 * end-of-line don't add it now either. */ | |
1328 if (!curbuf->b_p_eol) | |
1329 --tlen; | |
1330 size = tlen; | |
1331 break; | |
1332 } | |
1333 } | |
1334 } | |
1335 } | |
1336 } | |
1337 else | |
1338 { | |
1339 /* | |
1340 * Read bytes from the file. | |
1341 */ | |
1342 size = vim_read(fd, ptr, size); | |
1343 } | |
1344 | |
1345 if (size <= 0) | |
1346 { | |
1347 if (size < 0) /* read error */ | |
1348 error = TRUE; | |
1349 #ifdef FEAT_MBYTE | |
1350 else if (conv_restlen > 0) | |
595 | 1351 { |
1597 | 1352 /* |
1353 * Reached end-of-file but some trailing bytes could | |
1354 * not be converted. Truncated file? | |
1355 */ | |
1356 | |
1357 /* When we did a conversion report an error. */ | |
1358 if (fio_flags != 0 | |
1359 # ifdef USE_ICONV | |
1360 || iconv_fd != (iconv_t)-1 | |
1361 # endif | |
1362 ) | |
1363 { | |
1364 if (conv_error == 0) | |
1365 conv_error = curbuf->b_ml.ml_line_count | |
1366 - linecnt + 1; | |
1367 } | |
1368 /* Remember the first linenr with an illegal byte */ | |
1369 else if (illegal_byte == 0) | |
1370 illegal_byte = curbuf->b_ml.ml_line_count | |
1371 - linecnt + 1; | |
1372 if (bad_char_behavior == BAD_DROP) | |
595 | 1373 { |
1597 | 1374 *(ptr - conv_restlen) = NUL; |
1375 conv_restlen = 0; | |
1376 } | |
1377 else | |
1378 { | |
1379 /* Replace the trailing bytes with the replacement | |
1380 * character if we were converting; if we weren't, | |
1381 * leave the UTF8 checking code to do it, as it | |
1382 * works slightly differently. */ | |
1383 if (bad_char_behavior != BAD_KEEP && (fio_flags != 0 | |
1384 # ifdef USE_ICONV | |
1385 || iconv_fd != (iconv_t)-1 | |
1386 # endif | |
1387 )) | |
1388 { | |
1389 while (conv_restlen > 0) | |
1390 { | |
1391 *(--ptr) = bad_char_behavior; | |
1392 --conv_restlen; | |
1393 } | |
1394 } | |
595 | 1395 fio_flags = 0; /* don't convert this */ |
834 | 1396 # ifdef USE_ICONV |
1397 if (iconv_fd != (iconv_t)-1) | |
1398 { | |
1399 iconv_close(iconv_fd); | |
1400 iconv_fd = (iconv_t)-1; | |
1401 } | |
1402 # endif | |
595 | 1403 } |
1404 } | |
7 | 1405 #endif |
1406 } | |
1407 | |
1408 #ifdef FEAT_CRYPT | |
1409 /* | |
1410 * At start of file: Check for magic number of encryption. | |
1411 */ | |
1412 if (filesize == 0) | |
1413 cryptkey = check_for_cryptkey(cryptkey, ptr, &size, | |
2204
c493d6bfde09
A few more changes for encryption. Add test that encrypted file can be read.
Bram Moolenaar <bram@vim.org>
parents:
2180
diff
changeset
|
1414 &filesize, newfile, &did_ask_for_key); |
7 | 1415 /* |
1416 * Decrypt the read bytes. | |
1417 */ | |
1418 if (cryptkey != NULL && size > 0) | |
1419 for (p = ptr; p < ptr + size; ++p) | |
1420 ZDECODE(*p); | |
1421 #endif | |
1422 } | |
1423 skip_read = FALSE; | |
1424 | |
1425 #ifdef FEAT_MBYTE | |
1426 /* | |
1427 * At start of file (or after crypt magic number): Check for BOM. | |
1428 * Also check for a BOM for other Unicode encodings, but not after | |
1429 * converting with 'charconvert' or when a BOM has already been | |
1430 * found. | |
1431 */ | |
1432 if ((filesize == 0 | |
1433 # ifdef FEAT_CRYPT | |
2180
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
1434 || (filesize == (CRYPT_MAGIC_LEN |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
1435 + crypt_seed_len[use_crypt_method]) |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
1436 && cryptkey != NULL) |
7 | 1437 # endif |
1438 ) | |
1439 && (fio_flags == FIO_UCSBOM | |
1440 || (!curbuf->b_p_bomb | |
1441 && tmpname == NULL | |
1442 && (*fenc == 'u' || (*fenc == NUL && enc_utf8))))) | |
1443 { | |
1444 char_u *ccname; | |
1445 int blen; | |
1446 | |
1447 /* no BOM detection in a short file or in binary mode */ | |
1448 if (size < 2 || curbuf->b_p_bin) | |
1449 ccname = NULL; | |
1450 else | |
1451 ccname = check_for_bom(ptr, size, &blen, | |
1452 fio_flags == FIO_UCSBOM ? FIO_ALL : get_fio_flags(fenc)); | |
1453 if (ccname != NULL) | |
1454 { | |
1455 /* Remove BOM from the text */ | |
1456 filesize += blen; | |
1457 size -= blen; | |
1458 mch_memmove(ptr, ptr + blen, (size_t)size); | |
819 | 1459 if (set_options) |
1352 | 1460 { |
7 | 1461 curbuf->b_p_bomb = TRUE; |
1352 | 1462 curbuf->b_start_bomb = TRUE; |
1463 } | |
7 | 1464 } |
1465 | |
1466 if (fio_flags == FIO_UCSBOM) | |
1467 { | |
1468 if (ccname == NULL) | |
1469 { | |
1470 /* No BOM detected: retry with next encoding. */ | |
1471 advance_fenc = TRUE; | |
1472 } | |
1473 else | |
1474 { | |
1475 /* BOM detected: set "fenc" and jump back */ | |
1476 if (fenc_alloced) | |
1477 vim_free(fenc); | |
1478 fenc = ccname; | |
1479 fenc_alloced = FALSE; | |
1480 } | |
1481 /* retry reading without getting new bytes or rewinding */ | |
1482 skip_read = TRUE; | |
1483 goto retry; | |
1484 } | |
1485 } | |
1597 | 1486 |
1487 /* Include not converted bytes. */ | |
1488 ptr -= conv_restlen; | |
1489 size += conv_restlen; | |
1490 conv_restlen = 0; | |
7 | 1491 #endif |
1492 /* | |
1493 * Break here for a read error or end-of-file. | |
1494 */ | |
1495 if (size <= 0) | |
1496 break; | |
1497 | |
1498 #ifdef FEAT_MBYTE | |
1499 | |
1500 # ifdef USE_ICONV | |
1501 if (iconv_fd != (iconv_t)-1) | |
1502 { | |
1503 /* | |
1504 * Attempt conversion of the read bytes to 'encoding' using | |
1505 * iconv(). | |
1506 */ | |
1507 const char *fromp; | |
1508 char *top; | |
1509 size_t from_size; | |
1510 size_t to_size; | |
1511 | |
1512 fromp = (char *)ptr; | |
1513 from_size = size; | |
1514 ptr += size; | |
1515 top = (char *)ptr; | |
1516 to_size = real_size - size; | |
1517 | |
1518 /* | |
1519 * If there is conversion error or not enough room try using | |
179 | 1520 * another conversion. Except for when there is no |
1521 * alternative (help files). | |
7 | 1522 */ |
177 | 1523 while ((iconv(iconv_fd, (void *)&fromp, &from_size, |
1524 &top, &to_size) | |
7 | 1525 == (size_t)-1 && ICONV_ERRNO != ICONV_EINVAL) |
1526 || from_size > CONV_RESTLEN) | |
177 | 1527 { |
595 | 1528 if (can_retry) |
375 | 1529 goto rewind_retry; |
595 | 1530 if (conv_error == 0) |
1531 conv_error = readfile_linenr(linecnt, | |
1532 ptr, (char_u *)top); | |
1533 | |
1534 /* Deal with a bad byte and continue with the next. */ | |
177 | 1535 ++fromp; |
1536 --from_size; | |
595 | 1537 if (bad_char_behavior == BAD_KEEP) |
1538 { | |
1539 *top++ = *(fromp - 1); | |
1540 --to_size; | |
1541 } | |
1542 else if (bad_char_behavior != BAD_DROP) | |
1543 { | |
1544 *top++ = bad_char_behavior; | |
1545 --to_size; | |
1546 } | |
177 | 1547 } |
7 | 1548 |
1549 if (from_size > 0) | |
1550 { | |
1551 /* Some remaining characters, keep them for the next | |
1552 * round. */ | |
1553 mch_memmove(conv_rest, (char_u *)fromp, from_size); | |
1554 conv_restlen = (int)from_size; | |
1555 } | |
1556 | |
1557 /* move the linerest to before the converted characters */ | |
1558 line_start = ptr - linerest; | |
1559 mch_memmove(line_start, buffer, (size_t)linerest); | |
1560 size = (long)((char_u *)top - ptr); | |
1561 } | |
1562 # endif | |
1563 | |
1564 # ifdef WIN3264 | |
1565 if (fio_flags & FIO_CODEPAGE) | |
1566 { | |
595 | 1567 char_u *src, *dst; |
1568 WCHAR ucs2buf[3]; | |
1569 int ucs2len; | |
1570 int codepage = FIO_GET_CP(fio_flags); | |
1571 int bytelen; | |
1572 int found_bad; | |
1573 char replstr[2]; | |
1574 | |
7 | 1575 /* |
1576 * Conversion from an MS-Windows codepage or UTF-8 to UTF-8 or | |
595 | 1577 * a codepage, using standard MS-Windows functions. This |
1578 * requires two steps: | |
1579 * 1. convert from 'fileencoding' to ucs-2 | |
1580 * 2. convert from ucs-2 to 'encoding' | |
1581 * | |
1582 * Because there may be illegal bytes AND an incomplete byte | |
1583 * sequence at the end, we may have to do the conversion one | |
1584 * character at a time to get it right. | |
7 | 1585 */ |
595 | 1586 |
1587 /* Replacement string for WideCharToMultiByte(). */ | |
1588 if (bad_char_behavior > 0) | |
1589 replstr[0] = bad_char_behavior; | |
1590 else | |
1591 replstr[0] = '?'; | |
1592 replstr[1] = NUL; | |
1593 | |
1594 /* | |
1595 * Move the bytes to the end of the buffer, so that we have | |
1596 * room to put the result at the start. | |
1597 */ | |
1598 src = ptr + real_size - size; | |
1599 mch_memmove(src, ptr, size); | |
7 | 1600 |
1601 /* | |
595 | 1602 * Do the conversion. |
7 | 1603 */ |
595 | 1604 dst = ptr; |
1605 size = size; | |
1606 while (size > 0) | |
7 | 1607 { |
595 | 1608 found_bad = FALSE; |
7 | 1609 |
1610 # ifdef CP_UTF8 /* VC 4.1 doesn't define CP_UTF8 */ | |
595 | 1611 if (codepage == CP_UTF8) |
7 | 1612 { |
595 | 1613 /* Handle CP_UTF8 input ourselves to be able to handle |
1614 * trailing bytes properly. | |
1615 * Get one UTF-8 character from src. */ | |
835 | 1616 bytelen = (int)utf_ptr2len_len(src, size); |
595 | 1617 if (bytelen > size) |
1618 { | |
1619 /* Only got some bytes of a character. Normally | |
1620 * it's put in "conv_rest", but if it's too long | |
1621 * deal with it as if they were illegal bytes. */ | |
1622 if (bytelen <= CONV_RESTLEN) | |
1623 break; | |
1624 | |
1625 /* weird overlong byte sequence */ | |
1626 bytelen = size; | |
1627 found_bad = TRUE; | |
1628 } | |
1629 else | |
1630 { | |
799 | 1631 int u8c = utf_ptr2char(src); |
1632 | |
622 | 1633 if (u8c > 0xffff || (*src >= 0x80 && bytelen == 1)) |
595 | 1634 found_bad = TRUE; |
1635 ucs2buf[0] = u8c; | |
1636 ucs2len = 1; | |
1637 } | |
7 | 1638 } |
595 | 1639 else |
7 | 1640 # endif |
595 | 1641 { |
1642 /* We don't know how long the byte sequence is, try | |
1643 * from one to three bytes. */ | |
1644 for (bytelen = 1; bytelen <= size && bytelen <= 3; | |
1645 ++bytelen) | |
1646 { | |
1647 ucs2len = MultiByteToWideChar(codepage, | |
1648 MB_ERR_INVALID_CHARS, | |
1649 (LPCSTR)src, bytelen, | |
1650 ucs2buf, 3); | |
1651 if (ucs2len > 0) | |
1652 break; | |
1653 } | |
1654 if (ucs2len == 0) | |
1655 { | |
1656 /* If we have only one byte then it's probably an | |
1657 * incomplete byte sequence. Otherwise discard | |
1658 * one byte as a bad character. */ | |
1659 if (size == 1) | |
1660 break; | |
1661 found_bad = TRUE; | |
1662 bytelen = 1; | |
1663 } | |
1664 } | |
1665 | |
1666 if (!found_bad) | |
7 | 1667 { |
595 | 1668 int i; |
1669 | |
1670 /* Convert "ucs2buf[ucs2len]" to 'enc' in "dst". */ | |
1671 if (enc_utf8) | |
1672 { | |
1673 /* From UCS-2 to UTF-8. Cannot fail. */ | |
1674 for (i = 0; i < ucs2len; ++i) | |
1675 dst += utf_char2bytes(ucs2buf[i], dst); | |
1676 } | |
1677 else | |
1678 { | |
1679 BOOL bad = FALSE; | |
1680 int dstlen; | |
1681 | |
1682 /* From UCS-2 to "enc_codepage". If the | |
1683 * conversion uses the default character "?", | |
1684 * the data doesn't fit in this encoding. */ | |
1685 dstlen = WideCharToMultiByte(enc_codepage, 0, | |
1686 (LPCWSTR)ucs2buf, ucs2len, | |
835 | 1687 (LPSTR)dst, (int)(src - dst), |
595 | 1688 replstr, &bad); |
1689 if (bad) | |
1690 found_bad = TRUE; | |
1691 else | |
1692 dst += dstlen; | |
1693 } | |
7 | 1694 } |
595 | 1695 |
1696 if (found_bad) | |
1697 { | |
1698 /* Deal with bytes we can't convert. */ | |
1699 if (can_retry) | |
1700 goto rewind_retry; | |
1701 if (conv_error == 0) | |
1702 conv_error = readfile_linenr(linecnt, ptr, dst); | |
1703 if (bad_char_behavior != BAD_DROP) | |
1704 { | |
1705 if (bad_char_behavior == BAD_KEEP) | |
1706 { | |
1707 mch_memmove(dst, src, bytelen); | |
1708 dst += bytelen; | |
1709 } | |
1710 else | |
1711 *dst++ = bad_char_behavior; | |
1712 } | |
1713 } | |
1714 | |
1715 src += bytelen; | |
1716 size -= bytelen; | |
7 | 1717 } |
595 | 1718 |
1719 if (size > 0) | |
7 | 1720 { |
595 | 1721 /* An incomplete byte sequence remaining. */ |
1722 mch_memmove(conv_rest, src, size); | |
1723 conv_restlen = size; | |
7 | 1724 } |
595 | 1725 |
1726 /* The new size is equal to how much "dst" was advanced. */ | |
835 | 1727 size = (long)(dst - ptr); |
7 | 1728 } |
1729 else | |
1730 # endif | |
765 | 1731 # ifdef MACOS_CONVERT |
7 | 1732 if (fio_flags & FIO_MACROMAN) |
1733 { | |
1734 /* | |
1735 * Conversion from Apple MacRoman char encoding to UTF-8 or | |
18 | 1736 * latin1. This is in os_mac_conv.c. |
7 | 1737 */ |
18 | 1738 if (macroman2enc(ptr, &size, real_size) == FAIL) |
7 | 1739 goto rewind_retry; |
1740 } | |
1741 else | |
1742 # endif | |
1743 if (fio_flags != 0) | |
1744 { | |
1745 int u8c; | |
1746 char_u *dest; | |
1747 char_u *tail = NULL; | |
1748 | |
1749 /* | |
1750 * "enc_utf8" set: Convert Unicode or Latin1 to UTF-8. | |
1751 * "enc_utf8" not set: Convert Unicode to Latin1. | |
1752 * Go from end to start through the buffer, because the number | |
1753 * of bytes may increase. | |
1754 * "dest" points to after where the UTF-8 bytes go, "p" points | |
1755 * to after the next character to convert. | |
1756 */ | |
1757 dest = ptr + real_size; | |
1758 if (fio_flags == FIO_LATIN1 || fio_flags == FIO_UTF8) | |
1759 { | |
1760 p = ptr + size; | |
1761 if (fio_flags == FIO_UTF8) | |
1762 { | |
1763 /* Check for a trailing incomplete UTF-8 sequence */ | |
1764 tail = ptr + size - 1; | |
1765 while (tail > ptr && (*tail & 0xc0) == 0x80) | |
1766 --tail; | |
1767 if (tail + utf_byte2len(*tail) <= ptr + size) | |
1768 tail = NULL; | |
1769 else | |
1770 p = tail; | |
1771 } | |
1772 } | |
1773 else if (fio_flags & (FIO_UCS2 | FIO_UTF16)) | |
1774 { | |
1775 /* Check for a trailing byte */ | |
1776 p = ptr + (size & ~1); | |
1777 if (size & 1) | |
1778 tail = p; | |
1779 if ((fio_flags & FIO_UTF16) && p > ptr) | |
1780 { | |
1781 /* Check for a trailing leading word */ | |
1782 if (fio_flags & FIO_ENDIAN_L) | |
1783 { | |
1784 u8c = (*--p << 8); | |
1785 u8c += *--p; | |
1786 } | |
1787 else | |
1788 { | |
1789 u8c = *--p; | |
1790 u8c += (*--p << 8); | |
1791 } | |
1792 if (u8c >= 0xd800 && u8c <= 0xdbff) | |
1793 tail = p; | |
1794 else | |
1795 p += 2; | |
1796 } | |
1797 } | |
1798 else /* FIO_UCS4 */ | |
1799 { | |
1800 /* Check for trailing 1, 2 or 3 bytes */ | |
1801 p = ptr + (size & ~3); | |
1802 if (size & 3) | |
1803 tail = p; | |
1804 } | |
1805 | |
1806 /* If there is a trailing incomplete sequence move it to | |
1807 * conv_rest[]. */ | |
1808 if (tail != NULL) | |
1809 { | |
1810 conv_restlen = (int)((ptr + size) - tail); | |
1811 mch_memmove(conv_rest, (char_u *)tail, conv_restlen); | |
1812 size -= conv_restlen; | |
1813 } | |
1814 | |
1815 | |
1816 while (p > ptr) | |
1817 { | |
1818 if (fio_flags & FIO_LATIN1) | |
1819 u8c = *--p; | |
1820 else if (fio_flags & (FIO_UCS2 | FIO_UTF16)) | |
1821 { | |
1822 if (fio_flags & FIO_ENDIAN_L) | |
1823 { | |
1824 u8c = (*--p << 8); | |
1825 u8c += *--p; | |
1826 } | |
1827 else | |
1828 { | |
1829 u8c = *--p; | |
1830 u8c += (*--p << 8); | |
1831 } | |
1832 if ((fio_flags & FIO_UTF16) | |
1833 && u8c >= 0xdc00 && u8c <= 0xdfff) | |
1834 { | |
1835 int u16c; | |
1836 | |
1837 if (p == ptr) | |
1838 { | |
1839 /* Missing leading word. */ | |
1840 if (can_retry) | |
1841 goto rewind_retry; | |
595 | 1842 if (conv_error == 0) |
1843 conv_error = readfile_linenr(linecnt, | |
1844 ptr, p); | |
1845 if (bad_char_behavior == BAD_DROP) | |
1846 continue; | |
1847 if (bad_char_behavior != BAD_KEEP) | |
1848 u8c = bad_char_behavior; | |
7 | 1849 } |
1850 | |
1851 /* found second word of double-word, get the first | |
1852 * word and compute the resulting character */ | |
1853 if (fio_flags & FIO_ENDIAN_L) | |
1854 { | |
1855 u16c = (*--p << 8); | |
1856 u16c += *--p; | |
1857 } | |
1858 else | |
1859 { | |
1860 u16c = *--p; | |
1861 u16c += (*--p << 8); | |
1862 } | |
595 | 1863 u8c = 0x10000 + ((u16c & 0x3ff) << 10) |
1864 + (u8c & 0x3ff); | |
1865 | |
7 | 1866 /* Check if the word is indeed a leading word. */ |
1867 if (u16c < 0xd800 || u16c > 0xdbff) | |
1868 { | |
1869 if (can_retry) | |
1870 goto rewind_retry; | |
595 | 1871 if (conv_error == 0) |
1872 conv_error = readfile_linenr(linecnt, | |
1873 ptr, p); | |
1874 if (bad_char_behavior == BAD_DROP) | |
1875 continue; | |
1876 if (bad_char_behavior != BAD_KEEP) | |
1877 u8c = bad_char_behavior; | |
7 | 1878 } |
1879 } | |
1880 } | |
1881 else if (fio_flags & FIO_UCS4) | |
1882 { | |
1883 if (fio_flags & FIO_ENDIAN_L) | |
1884 { | |
1885 u8c = (*--p << 24); | |
1886 u8c += (*--p << 16); | |
1887 u8c += (*--p << 8); | |
1888 u8c += *--p; | |
1889 } | |
1890 else /* big endian */ | |
1891 { | |
1892 u8c = *--p; | |
1893 u8c += (*--p << 8); | |
1894 u8c += (*--p << 16); | |
1895 u8c += (*--p << 24); | |
1896 } | |
1897 } | |
1898 else /* UTF-8 */ | |
1899 { | |
1900 if (*--p < 0x80) | |
1901 u8c = *p; | |
1902 else | |
1903 { | |
1904 len = utf_head_off(ptr, p); | |
595 | 1905 p -= len; |
1906 u8c = utf_ptr2char(p); | |
7 | 1907 if (len == 0) |
1908 { | |
1909 /* Not a valid UTF-8 character, retry with | |
1910 * another fenc when possible, otherwise just | |
1911 * report the error. */ | |
1912 if (can_retry) | |
1913 goto rewind_retry; | |
595 | 1914 if (conv_error == 0) |
1915 conv_error = readfile_linenr(linecnt, | |
1916 ptr, p); | |
1917 if (bad_char_behavior == BAD_DROP) | |
1918 continue; | |
1919 if (bad_char_behavior != BAD_KEEP) | |
1920 u8c = bad_char_behavior; | |
7 | 1921 } |
1922 } | |
1923 } | |
1924 if (enc_utf8) /* produce UTF-8 */ | |
1925 { | |
1926 dest -= utf_char2len(u8c); | |
1927 (void)utf_char2bytes(u8c, dest); | |
1928 } | |
1929 else /* produce Latin1 */ | |
1930 { | |
1931 --dest; | |
1932 if (u8c >= 0x100) | |
1933 { | |
1934 /* character doesn't fit in latin1, retry with | |
1935 * another fenc when possible, otherwise just | |
1936 * report the error. */ | |
595 | 1937 if (can_retry) |
7 | 1938 goto rewind_retry; |
595 | 1939 if (conv_error == 0) |
1940 conv_error = readfile_linenr(linecnt, ptr, p); | |
1941 if (bad_char_behavior == BAD_DROP) | |
1942 ++dest; | |
1943 else if (bad_char_behavior == BAD_KEEP) | |
1944 *dest = u8c; | |
1945 else if (eap != NULL && eap->bad_char != 0) | |
1946 *dest = bad_char_behavior; | |
1947 else | |
1948 *dest = 0xBF; | |
7 | 1949 } |
1950 else | |
1951 *dest = u8c; | |
1952 } | |
1953 } | |
1954 | |
1955 /* move the linerest to before the converted characters */ | |
1956 line_start = dest - linerest; | |
1957 mch_memmove(line_start, buffer, (size_t)linerest); | |
1958 size = (long)((ptr + real_size) - dest); | |
1959 ptr = dest; | |
1960 } | |
1597 | 1961 else if (enc_utf8 && !curbuf->b_p_bin) |
1962 { | |
1963 int incomplete_tail = FALSE; | |
1964 | |
1965 /* Reading UTF-8: Check if the bytes are valid UTF-8. */ | |
1966 for (p = ptr; ; ++p) | |
7 | 1967 { |
835 | 1968 int todo = (int)((ptr + size) - p); |
595 | 1969 int l; |
1970 | |
1971 if (todo <= 0) | |
1972 break; | |
7 | 1973 if (*p >= 0x80) |
1974 { | |
1975 /* A length of 1 means it's an illegal byte. Accept | |
1976 * an incomplete character at the end though, the next | |
1977 * read() will get the next bytes, we'll check it | |
1978 * then. */ | |
595 | 1979 l = utf_ptr2len_len(p, todo); |
1597 | 1980 if (l > todo && !incomplete_tail) |
7 | 1981 { |
1597 | 1982 /* Avoid retrying with a different encoding when |
1983 * a truncated file is more likely, or attempting | |
1984 * to read the rest of an incomplete sequence when | |
1985 * we have already done so. */ | |
1986 if (p > ptr || filesize > 0) | |
1987 incomplete_tail = TRUE; | |
1988 /* Incomplete byte sequence, move it to conv_rest[] | |
1989 * and try to read the rest of it, unless we've | |
1990 * already done so. */ | |
1991 if (p > ptr) | |
1992 { | |
1993 conv_restlen = todo; | |
1994 mch_memmove(conv_rest, p, conv_restlen); | |
1995 size -= conv_restlen; | |
1996 break; | |
1997 } | |
7 | 1998 } |
1597 | 1999 if (l == 1 || l > todo) |
595 | 2000 { |
2001 /* Illegal byte. If we can try another encoding | |
1597 | 2002 * do that, unless at EOF where a truncated |
2003 * file is more likely than a conversion error. */ | |
2004 if (can_retry && !incomplete_tail) | |
595 | 2005 break; |
2006 # ifdef USE_ICONV | |
2007 /* When we did a conversion report an error. */ | |
2008 if (iconv_fd != (iconv_t)-1 && conv_error == 0) | |
2009 conv_error = readfile_linenr(linecnt, ptr, p); | |
2010 # endif | |
1597 | 2011 /* Remember the first linenr with an illegal byte */ |
2012 if (conv_error == 0 && illegal_byte == 0) | |
2013 illegal_byte = readfile_linenr(linecnt, ptr, p); | |
595 | 2014 |
2015 /* Drop, keep or replace the bad byte. */ | |
2016 if (bad_char_behavior == BAD_DROP) | |
2017 { | |
1597 | 2018 mch_memmove(p, p + 1, todo - 1); |
595 | 2019 --p; |
2020 --size; | |
2021 } | |
2022 else if (bad_char_behavior != BAD_KEEP) | |
2023 *p = bad_char_behavior; | |
2024 } | |
1597 | 2025 else |
2026 p += l - 1; | |
7 | 2027 } |
2028 } | |
1597 | 2029 if (p < ptr + size && !incomplete_tail) |
7 | 2030 { |
2031 /* Detected a UTF-8 error. */ | |
2032 rewind_retry: | |
595 | 2033 /* Retry reading with another conversion. */ |
7 | 2034 # if defined(FEAT_EVAL) && defined(USE_ICONV) |
595 | 2035 if (*p_ccv != NUL && iconv_fd != (iconv_t)-1) |
2036 /* iconv() failed, try 'charconvert' */ | |
2037 did_iconv = TRUE; | |
7 | 2038 else |
2039 # endif | |
595 | 2040 /* use next item from 'fileencodings' */ |
2041 advance_fenc = TRUE; | |
2042 file_rewind = TRUE; | |
2043 goto retry; | |
7 | 2044 } |
2045 } | |
2046 #endif | |
2047 | |
2048 /* count the number of characters (after conversion!) */ | |
2049 filesize += size; | |
2050 | |
2051 /* | |
2052 * when reading the first part of a file: guess EOL type | |
2053 */ | |
2054 if (fileformat == EOL_UNKNOWN) | |
2055 { | |
2056 /* First try finding a NL, for Dos and Unix */ | |
2057 if (try_dos || try_unix) | |
2058 { | |
2059 for (p = ptr; p < ptr + size; ++p) | |
2060 { | |
2061 if (*p == NL) | |
2062 { | |
2063 if (!try_unix | |
2064 || (try_dos && p > ptr && p[-1] == CAR)) | |
2065 fileformat = EOL_DOS; | |
2066 else | |
2067 fileformat = EOL_UNIX; | |
2068 break; | |
2069 } | |
2070 } | |
2071 | |
2072 /* Don't give in to EOL_UNIX if EOL_MAC is more likely */ | |
2073 if (fileformat == EOL_UNIX && try_mac) | |
2074 { | |
2075 /* Need to reset the counters when retrying fenc. */ | |
2076 try_mac = 1; | |
2077 try_unix = 1; | |
2078 for (; p >= ptr && *p != CAR; p--) | |
2079 ; | |
2080 if (p >= ptr) | |
2081 { | |
2082 for (p = ptr; p < ptr + size; ++p) | |
2083 { | |
2084 if (*p == NL) | |
2085 try_unix++; | |
2086 else if (*p == CAR) | |
2087 try_mac++; | |
2088 } | |
2089 if (try_mac > try_unix) | |
2090 fileformat = EOL_MAC; | |
2091 } | |
2092 } | |
2093 } | |
2094 | |
2095 /* No NL found: may use Mac format */ | |
2096 if (fileformat == EOL_UNKNOWN && try_mac) | |
2097 fileformat = EOL_MAC; | |
2098 | |
2099 /* Still nothing found? Use first format in 'ffs' */ | |
2100 if (fileformat == EOL_UNKNOWN) | |
2101 fileformat = default_fileformat(); | |
2102 | |
2103 /* if editing a new file: may set p_tx and p_ff */ | |
819 | 2104 if (set_options) |
7 | 2105 set_fileformat(fileformat, OPT_LOCAL); |
2106 } | |
2107 } | |
2108 | |
2109 /* | |
2110 * This loop is executed once for every character read. | |
2111 * Keep it fast! | |
2112 */ | |
2113 if (fileformat == EOL_MAC) | |
2114 { | |
2115 --ptr; | |
2116 while (++ptr, --size >= 0) | |
2117 { | |
2118 /* catch most common case first */ | |
2119 if ((c = *ptr) != NUL && c != CAR && c != NL) | |
2120 continue; | |
2121 if (c == NUL) | |
2122 *ptr = NL; /* NULs are replaced by newlines! */ | |
2123 else if (c == NL) | |
2124 *ptr = CAR; /* NLs are replaced by CRs! */ | |
2125 else | |
2126 { | |
2127 if (skip_count == 0) | |
2128 { | |
2129 *ptr = NUL; /* end of line */ | |
2130 len = (colnr_T) (ptr - line_start + 1); | |
2131 if (ml_append(lnum, line_start, len, newfile) == FAIL) | |
2132 { | |
2133 error = TRUE; | |
2134 break; | |
2135 } | |
2136 ++lnum; | |
2137 if (--read_count == 0) | |
2138 { | |
2139 error = TRUE; /* break loop */ | |
2140 line_start = ptr; /* nothing left to write */ | |
2141 break; | |
2142 } | |
2143 } | |
2144 else | |
2145 --skip_count; | |
2146 line_start = ptr + 1; | |
2147 } | |
2148 } | |
2149 } | |
2150 else | |
2151 { | |
2152 --ptr; | |
2153 while (++ptr, --size >= 0) | |
2154 { | |
2155 if ((c = *ptr) != NUL && c != NL) /* catch most common case */ | |
2156 continue; | |
2157 if (c == NUL) | |
2158 *ptr = NL; /* NULs are replaced by newlines! */ | |
2159 else | |
2160 { | |
2161 if (skip_count == 0) | |
2162 { | |
2163 *ptr = NUL; /* end of line */ | |
2164 len = (colnr_T)(ptr - line_start + 1); | |
2165 if (fileformat == EOL_DOS) | |
2166 { | |
2167 if (ptr[-1] == CAR) /* remove CR */ | |
2168 { | |
2169 ptr[-1] = NUL; | |
2170 --len; | |
2171 } | |
2172 /* | |
2173 * Reading in Dos format, but no CR-LF found! | |
2174 * When 'fileformats' includes "unix", delete all | |
2175 * the lines read so far and start all over again. | |
2176 * Otherwise give an error message later. | |
2177 */ | |
2178 else if (ff_error != EOL_DOS) | |
2179 { | |
2180 if ( try_unix | |
2181 && !read_stdin | |
2182 && (read_buffer | |
2183 || lseek(fd, (off_t)0L, SEEK_SET) == 0)) | |
2184 { | |
2185 fileformat = EOL_UNIX; | |
819 | 2186 if (set_options) |
7 | 2187 set_fileformat(EOL_UNIX, OPT_LOCAL); |
2188 file_rewind = TRUE; | |
2189 keep_fileformat = TRUE; | |
2190 goto retry; | |
2191 } | |
2192 ff_error = EOL_DOS; | |
2193 } | |
2194 } | |
2195 if (ml_append(lnum, line_start, len, newfile) == FAIL) | |
2196 { | |
2197 error = TRUE; | |
2198 break; | |
2199 } | |
2200 ++lnum; | |
2201 if (--read_count == 0) | |
2202 { | |
2203 error = TRUE; /* break loop */ | |
2204 line_start = ptr; /* nothing left to write */ | |
2205 break; | |
2206 } | |
2207 } | |
2208 else | |
2209 --skip_count; | |
2210 line_start = ptr + 1; | |
2211 } | |
2212 } | |
2213 } | |
2214 linerest = (long)(ptr - line_start); | |
2215 ui_breakcheck(); | |
2216 } | |
2217 | |
2218 failed: | |
2219 /* not an error, max. number of lines reached */ | |
2220 if (error && read_count == 0) | |
2221 error = FALSE; | |
2222 | |
2223 /* | |
2224 * If we get EOF in the middle of a line, note the fact and | |
2225 * complete the line ourselves. | |
2226 * In Dos format ignore a trailing CTRL-Z, unless 'binary' set. | |
2227 */ | |
2228 if (!error | |
2229 && !got_int | |
2230 && linerest != 0 | |
2231 && !(!curbuf->b_p_bin | |
2232 && fileformat == EOL_DOS | |
2233 && *line_start == Ctrl_Z | |
2234 && ptr == line_start + 1)) | |
2235 { | |
819 | 2236 /* remember for when writing */ |
2237 if (set_options) | |
7 | 2238 curbuf->b_p_eol = FALSE; |
2239 *ptr = NUL; | |
2240 if (ml_append(lnum, line_start, | |
2241 (colnr_T)(ptr - line_start + 1), newfile) == FAIL) | |
2242 error = TRUE; | |
2243 else | |
2244 read_no_eol_lnum = ++lnum; | |
2245 } | |
2246 | |
819 | 2247 if (set_options) |
7 | 2248 save_file_ff(curbuf); /* remember the current file format */ |
2249 | |
2250 #ifdef FEAT_CRYPT | |
2251 if (cryptkey != curbuf->b_p_key) | |
2180
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
2252 free_crypt_key(cryptkey); |
7 | 2253 #endif |
2254 | |
2255 #ifdef FEAT_MBYTE | |
819 | 2256 /* If editing a new file: set 'fenc' for the current buffer. |
2257 * Also for ":read ++edit file". */ | |
2258 if (set_options) | |
7 | 2259 set_string_option_direct((char_u *)"fenc", -1, fenc, |
694 | 2260 OPT_FREE|OPT_LOCAL, 0); |
7 | 2261 if (fenc_alloced) |
2262 vim_free(fenc); | |
2263 # ifdef USE_ICONV | |
2264 if (iconv_fd != (iconv_t)-1) | |
2265 { | |
2266 iconv_close(iconv_fd); | |
2267 iconv_fd = (iconv_t)-1; | |
2268 } | |
2269 # endif | |
2270 #endif | |
2271 | |
2272 if (!read_buffer && !read_stdin) | |
2273 close(fd); /* errors are ignored */ | |
2003 | 2274 #ifdef HAVE_FD_CLOEXEC |
2275 else | |
2276 { | |
2277 int fdflags = fcntl(fd, F_GETFD); | |
2278 if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0) | |
2279 fcntl(fd, F_SETFD, fdflags | FD_CLOEXEC); | |
2280 } | |
2281 #endif | |
7 | 2282 vim_free(buffer); |
2283 | |
2284 #ifdef HAVE_DUP | |
2285 if (read_stdin) | |
2286 { | |
2287 /* Use stderr for stdin, makes shell commands work. */ | |
2288 close(0); | |
1757 | 2289 ignored = dup(2); |
7 | 2290 } |
2291 #endif | |
2292 | |
2293 #ifdef FEAT_MBYTE | |
2294 if (tmpname != NULL) | |
2295 { | |
2296 mch_remove(tmpname); /* delete converted file */ | |
2297 vim_free(tmpname); | |
2298 } | |
2299 #endif | |
2300 --no_wait_return; /* may wait for return now */ | |
2301 | |
2302 /* | |
2303 * In recovery mode everything but autocommands is skipped. | |
2304 */ | |
2305 if (!recoverymode) | |
2306 { | |
2307 /* need to delete the last line, which comes from the empty buffer */ | |
2308 if (newfile && wasempty && !(curbuf->b_ml.ml_flags & ML_EMPTY)) | |
2309 { | |
2310 #ifdef FEAT_NETBEANS_INTG | |
2311 netbeansFireChanges = 0; | |
2312 #endif | |
2313 ml_delete(curbuf->b_ml.ml_line_count, FALSE); | |
2314 #ifdef FEAT_NETBEANS_INTG | |
2315 netbeansFireChanges = 1; | |
2316 #endif | |
2317 --linecnt; | |
2318 } | |
2319 linecnt = curbuf->b_ml.ml_line_count - linecnt; | |
2320 if (filesize == 0) | |
2321 linecnt = 0; | |
2322 if (newfile || read_buffer) | |
1201 | 2323 { |
7 | 2324 redraw_curbuf_later(NOT_VALID); |
1201 | 2325 #ifdef FEAT_DIFF |
2326 /* After reading the text into the buffer the diff info needs to | |
2327 * be updated. */ | |
2328 diff_invalidate(curbuf); | |
2329 #endif | |
2330 #ifdef FEAT_FOLDING | |
2331 /* All folds in the window are invalid now. Mark them for update | |
2332 * before triggering autocommands. */ | |
2333 foldUpdateAll(curwin); | |
2334 #endif | |
2335 } | |
7 | 2336 else if (linecnt) /* appended at least one line */ |
2337 appended_lines_mark(from, linecnt); | |
2338 | |
2339 #ifndef ALWAYS_USE_GUI | |
2340 /* | |
2341 * If we were reading from the same terminal as where messages go, | |
2342 * the screen will have been messed up. | |
2343 * Switch on raw mode now and clear the screen. | |
2344 */ | |
2345 if (read_stdin) | |
2346 { | |
2347 settmode(TMODE_RAW); /* set to raw mode */ | |
2348 starttermcap(); | |
2349 screenclear(); | |
2350 } | |
2351 #endif | |
2352 | |
2353 if (got_int) | |
2354 { | |
2355 if (!(flags & READ_DUMMY)) | |
2356 { | |
2357 filemess(curbuf, sfname, (char_u *)_(e_interr), 0); | |
2358 if (newfile) | |
2359 curbuf->b_p_ro = TRUE; /* must use "w!" now */ | |
2360 } | |
2361 msg_scroll = msg_save; | |
2362 #ifdef FEAT_VIMINFO | |
2363 check_marks_read(); | |
2364 #endif | |
2365 return OK; /* an interrupt isn't really an error */ | |
2366 } | |
2367 | |
2368 if (!filtering && !(flags & READ_DUMMY)) | |
2369 { | |
2370 msg_add_fname(curbuf, sfname); /* fname in IObuff with quotes */ | |
2371 c = FALSE; | |
2372 | |
2373 #ifdef UNIX | |
2374 # ifdef S_ISFIFO | |
2375 if (S_ISFIFO(perm)) /* fifo or socket */ | |
2376 { | |
2377 STRCAT(IObuff, _("[fifo/socket]")); | |
2378 c = TRUE; | |
2379 } | |
2380 # else | |
2381 # ifdef S_IFIFO | |
2382 if ((perm & S_IFMT) == S_IFIFO) /* fifo */ | |
2383 { | |
2384 STRCAT(IObuff, _("[fifo]")); | |
2385 c = TRUE; | |
2386 } | |
2387 # endif | |
2388 # ifdef S_IFSOCK | |
2389 if ((perm & S_IFMT) == S_IFSOCK) /* or socket */ | |
2390 { | |
2391 STRCAT(IObuff, _("[socket]")); | |
2392 c = TRUE; | |
2393 } | |
2394 # endif | |
2395 # endif | |
1313 | 2396 # ifdef OPEN_CHR_FILES |
2397 if (S_ISCHR(perm)) /* or character special */ | |
2398 { | |
2399 STRCAT(IObuff, _("[character special]")); | |
2400 c = TRUE; | |
2401 } | |
2402 # endif | |
7 | 2403 #endif |
2404 if (curbuf->b_p_ro) | |
2405 { | |
2406 STRCAT(IObuff, shortmess(SHM_RO) ? _("[RO]") : _("[readonly]")); | |
2407 c = TRUE; | |
2408 } | |
2409 if (read_no_eol_lnum) | |
2410 { | |
2411 msg_add_eol(); | |
2412 c = TRUE; | |
2413 } | |
2414 if (ff_error == EOL_DOS) | |
2415 { | |
2416 STRCAT(IObuff, _("[CR missing]")); | |
2417 c = TRUE; | |
2418 } | |
2419 if (split) | |
2420 { | |
2421 STRCAT(IObuff, _("[long lines split]")); | |
2422 c = TRUE; | |
2423 } | |
2424 #ifdef FEAT_MBYTE | |
2425 if (notconverted) | |
2426 { | |
2427 STRCAT(IObuff, _("[NOT converted]")); | |
2428 c = TRUE; | |
2429 } | |
2430 else if (converted) | |
2431 { | |
2432 STRCAT(IObuff, _("[converted]")); | |
2433 c = TRUE; | |
2434 } | |
2435 #endif | |
2436 #ifdef FEAT_CRYPT | |
2437 if (cryptkey != NULL) | |
2438 { | |
2439 STRCAT(IObuff, _("[crypted]")); | |
2440 c = TRUE; | |
2441 } | |
2442 #endif | |
2443 #ifdef FEAT_MBYTE | |
595 | 2444 if (conv_error != 0) |
2445 { | |
2446 sprintf((char *)IObuff + STRLEN(IObuff), | |
2447 _("[CONVERSION ERROR in line %ld]"), (long)conv_error); | |
7 | 2448 c = TRUE; |
2449 } | |
2450 else if (illegal_byte > 0) | |
2451 { | |
2452 sprintf((char *)IObuff + STRLEN(IObuff), | |
2453 _("[ILLEGAL BYTE in line %ld]"), (long)illegal_byte); | |
2454 c = TRUE; | |
2455 } | |
2456 else | |
2457 #endif | |
2458 if (error) | |
2459 { | |
2460 STRCAT(IObuff, _("[READ ERRORS]")); | |
2461 c = TRUE; | |
2462 } | |
2463 if (msg_add_fileformat(fileformat)) | |
2464 c = TRUE; | |
2465 #ifdef FEAT_CRYPT | |
2466 if (cryptkey != NULL) | |
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diff
changeset
|
2467 msg_add_lines(c, (long)linecnt, filesize |
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Bram Moolenaar <bram@vim.org>
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diff
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|
2468 - CRYPT_MAGIC_LEN - crypt_seed_len[use_crypt_method]); |
7 | 2469 else |
2470 #endif | |
2471 msg_add_lines(c, (long)linecnt, filesize); | |
2472 | |
2473 vim_free(keep_msg); | |
2474 keep_msg = NULL; | |
2475 msg_scrolled_ign = TRUE; | |
2476 #ifdef ALWAYS_USE_GUI | |
2477 /* Don't show the message when reading stdin, it would end up in a | |
2478 * message box (which might be shown when exiting!) */ | |
2479 if (read_stdin || read_buffer) | |
2480 p = msg_may_trunc(FALSE, IObuff); | |
2481 else | |
2482 #endif | |
2483 p = msg_trunc_attr(IObuff, FALSE, 0); | |
2484 if (read_stdin || read_buffer || restart_edit != 0 | |
540 | 2485 || (msg_scrolled != 0 && !need_wait_return)) |
7 | 2486 /* Need to repeat the message after redrawing when: |
2487 * - When reading from stdin (the screen will be cleared next). | |
2488 * - When restart_edit is set (otherwise there will be a delay | |
2489 * before redrawing). | |
2490 * - When the screen was scrolled but there is no wait-return | |
2491 * prompt. */ | |
679 | 2492 set_keep_msg(p, 0); |
7 | 2493 msg_scrolled_ign = FALSE; |
2494 } | |
2495 | |
2496 /* with errors writing the file requires ":w!" */ | |
2497 if (newfile && (error | |
2498 #ifdef FEAT_MBYTE | |
595 | 2499 || conv_error != 0 |
679 | 2500 || (illegal_byte > 0 && bad_char_behavior != BAD_KEEP) |
7 | 2501 #endif |
2502 )) | |
2503 curbuf->b_p_ro = TRUE; | |
2504 | |
2505 u_clearline(); /* cannot use "U" command after adding lines */ | |
2506 | |
2507 /* | |
2508 * In Ex mode: cursor at last new line. | |
2509 * Otherwise: cursor at first new line. | |
2510 */ | |
2511 if (exmode_active) | |
2512 curwin->w_cursor.lnum = from + linecnt; | |
2513 else | |
2514 curwin->w_cursor.lnum = from + 1; | |
2515 check_cursor_lnum(); | |
2516 beginline(BL_WHITE | BL_FIX); /* on first non-blank */ | |
2517 | |
2518 /* | |
2519 * Set '[ and '] marks to the newly read lines. | |
2520 */ | |
2521 curbuf->b_op_start.lnum = from + 1; | |
2522 curbuf->b_op_start.col = 0; | |
2523 curbuf->b_op_end.lnum = from + linecnt; | |
2524 curbuf->b_op_end.col = 0; | |
696 | 2525 |
2526 #ifdef WIN32 | |
2527 /* | |
2528 * Work around a weird problem: When a file has two links (only | |
2529 * possible on NTFS) and we write through one link, then stat() it | |
1651 | 2530 * through the other link, the timestamp information may be wrong. |
696 | 2531 * It's correct again after reading the file, thus reset the timestamp |
2532 * here. | |
2533 */ | |
2534 if (newfile && !read_stdin && !read_buffer | |
2535 && mch_stat((char *)fname, &st) >= 0) | |
2536 { | |
2537 buf_store_time(curbuf, &st, fname); | |
2538 curbuf->b_mtime_read = curbuf->b_mtime; | |
2539 } | |
2540 #endif | |
7 | 2541 } |
2542 msg_scroll = msg_save; | |
2543 | |
2544 #ifdef FEAT_VIMINFO | |
2545 /* | |
2546 * Get the marks before executing autocommands, so they can be used there. | |
2547 */ | |
2548 check_marks_read(); | |
2549 #endif | |
2550 | |
2551 /* | |
2552 * Trick: We remember if the last line of the read didn't have | |
2553 * an eol for when writing it again. This is required for | |
2554 * ":autocmd FileReadPost *.gz set bin|'[,']!gunzip" to work. | |
2555 */ | |
2556 write_no_eol_lnum = read_no_eol_lnum; | |
2557 | |
167 | 2558 #ifdef FEAT_AUTOCMD |
7 | 2559 if (!read_stdin && !read_buffer) |
2560 { | |
2561 int m = msg_scroll; | |
2562 int n = msg_scrolled; | |
2563 | |
2564 /* Save the fileformat now, otherwise the buffer will be considered | |
2565 * modified if the format/encoding was automatically detected. */ | |
819 | 2566 if (set_options) |
7 | 2567 save_file_ff(curbuf); |
2568 | |
2569 /* | |
2570 * The output from the autocommands should not overwrite anything and | |
2571 * should not be overwritten: Set msg_scroll, restore its value if no | |
2572 * output was done. | |
2573 */ | |
2574 msg_scroll = TRUE; | |
2575 if (filtering) | |
2576 apply_autocmds_exarg(EVENT_FILTERREADPOST, NULL, sfname, | |
2577 FALSE, curbuf, eap); | |
2578 else if (newfile) | |
2579 apply_autocmds_exarg(EVENT_BUFREADPOST, NULL, sfname, | |
2580 FALSE, curbuf, eap); | |
2581 else | |
2582 apply_autocmds_exarg(EVENT_FILEREADPOST, sfname, sfname, | |
2583 FALSE, NULL, eap); | |
2584 if (msg_scrolled == n) | |
2585 msg_scroll = m; | |
2586 #ifdef FEAT_EVAL | |
2587 if (aborting()) /* autocmds may abort script processing */ | |
2588 return FAIL; | |
2589 #endif | |
2590 } | |
2591 #endif | |
2592 | |
2593 if (recoverymode && error) | |
2594 return FAIL; | |
2595 return OK; | |
2596 } | |
2597 | |
1313 | 2598 #ifdef OPEN_CHR_FILES |
2599 /* | |
2600 * Returns TRUE if the file name argument is of the form "/dev/fd/\d\+", | |
2601 * which is the name of files used for process substitution output by | |
2602 * some shells on some operating systems, e.g., bash on SunOS. | |
2603 * Do not accept "/dev/fd/[012]", opening these may hang Vim. | |
2604 */ | |
2605 static int | |
2606 is_dev_fd_file(fname) | |
2607 char_u *fname; | |
2608 { | |
2609 return (STRNCMP(fname, "/dev/fd/", 8) == 0 | |
2610 && VIM_ISDIGIT(fname[8]) | |
2611 && *skipdigits(fname + 9) == NUL | |
2612 && (fname[9] != NUL | |
2613 || (fname[8] != '0' && fname[8] != '1' && fname[8] != '2'))); | |
2614 } | |
2615 #endif | |
2616 | |
595 | 2617 #ifdef FEAT_MBYTE |
2618 | |
2619 /* | |
2620 * From the current line count and characters read after that, estimate the | |
2621 * line number where we are now. | |
2622 * Used for error messages that include a line number. | |
2623 */ | |
2624 static linenr_T | |
2625 readfile_linenr(linecnt, p, endp) | |
2626 linenr_T linecnt; /* line count before reading more bytes */ | |
2627 char_u *p; /* start of more bytes read */ | |
2628 char_u *endp; /* end of more bytes read */ | |
2629 { | |
2630 char_u *s; | |
2631 linenr_T lnum; | |
2632 | |
2633 lnum = curbuf->b_ml.ml_line_count - linecnt + 1; | |
2634 for (s = p; s < endp; ++s) | |
2635 if (*s == '\n') | |
2636 ++lnum; | |
2637 return lnum; | |
2638 } | |
2639 #endif | |
2640 | |
7 | 2641 /* |
612 | 2642 * Fill "*eap" to force the 'fileencoding', 'fileformat' and 'binary to be |
2643 * equal to the buffer "buf". Used for calling readfile(). | |
7 | 2644 * Returns OK or FAIL. |
2645 */ | |
2646 int | |
2647 prep_exarg(eap, buf) | |
2648 exarg_T *eap; | |
2649 buf_T *buf; | |
2650 { | |
2651 eap->cmd = alloc((unsigned)(STRLEN(buf->b_p_ff) | |
2652 #ifdef FEAT_MBYTE | |
2653 + STRLEN(buf->b_p_fenc) | |
2654 #endif | |
2655 + 15)); | |
2656 if (eap->cmd == NULL) | |
2657 return FAIL; | |
2658 | |
2659 #ifdef FEAT_MBYTE | |
2660 sprintf((char *)eap->cmd, "e ++ff=%s ++enc=%s", buf->b_p_ff, buf->b_p_fenc); | |
2661 eap->force_enc = 14 + (int)STRLEN(buf->b_p_ff); | |
612 | 2662 eap->bad_char = buf->b_bad_char; |
7 | 2663 #else |
2664 sprintf((char *)eap->cmd, "e ++ff=%s", buf->b_p_ff); | |
2665 #endif | |
2666 eap->force_ff = 7; | |
612 | 2667 |
2668 eap->force_bin = buf->b_p_bin ? FORCE_BIN : FORCE_NOBIN; | |
819 | 2669 eap->read_edit = FALSE; |
612 | 2670 eap->forceit = FALSE; |
7 | 2671 return OK; |
2672 } | |
2673 | |
2674 #ifdef FEAT_MBYTE | |
2675 /* | |
2676 * Find next fileencoding to use from 'fileencodings'. | |
2677 * "pp" points to fenc_next. It's advanced to the next item. | |
2678 * When there are no more items, an empty string is returned and *pp is set to | |
2679 * NULL. | |
2680 * When *pp is not set to NULL, the result is in allocated memory. | |
2681 */ | |
2682 static char_u * | |
2683 next_fenc(pp) | |
2684 char_u **pp; | |
2685 { | |
2686 char_u *p; | |
2687 char_u *r; | |
2688 | |
2689 if (**pp == NUL) | |
2690 { | |
2691 *pp = NULL; | |
2692 return (char_u *)""; | |
2693 } | |
2694 p = vim_strchr(*pp, ','); | |
2695 if (p == NULL) | |
2696 { | |
2697 r = enc_canonize(*pp); | |
2698 *pp += STRLEN(*pp); | |
2699 } | |
2700 else | |
2701 { | |
2702 r = vim_strnsave(*pp, (int)(p - *pp)); | |
2703 *pp = p + 1; | |
2704 if (r != NULL) | |
2705 { | |
2706 p = enc_canonize(r); | |
2707 vim_free(r); | |
2708 r = p; | |
2709 } | |
2710 } | |
2711 if (r == NULL) /* out of memory */ | |
2712 { | |
2713 r = (char_u *)""; | |
2714 *pp = NULL; | |
2715 } | |
2716 return r; | |
2717 } | |
2718 | |
2719 # ifdef FEAT_EVAL | |
2720 /* | |
2721 * Convert a file with the 'charconvert' expression. | |
2722 * This closes the file which is to be read, converts it and opens the | |
2723 * resulting file for reading. | |
2724 * Returns name of the resulting converted file (the caller should delete it | |
2725 * after reading it). | |
2726 * Returns NULL if the conversion failed ("*fdp" is not set) . | |
2727 */ | |
2728 static char_u * | |
2729 readfile_charconvert(fname, fenc, fdp) | |
2730 char_u *fname; /* name of input file */ | |
2731 char_u *fenc; /* converted from */ | |
2732 int *fdp; /* in/out: file descriptor of file */ | |
2733 { | |
2734 char_u *tmpname; | |
2735 char_u *errmsg = NULL; | |
2736 | |
2737 tmpname = vim_tempname('r'); | |
2738 if (tmpname == NULL) | |
2739 errmsg = (char_u *)_("Can't find temp file for conversion"); | |
2740 else | |
2741 { | |
2742 close(*fdp); /* close the input file, ignore errors */ | |
2743 *fdp = -1; | |
2744 if (eval_charconvert(fenc, enc_utf8 ? (char_u *)"utf-8" : p_enc, | |
2745 fname, tmpname) == FAIL) | |
2746 errmsg = (char_u *)_("Conversion with 'charconvert' failed"); | |
2747 if (errmsg == NULL && (*fdp = mch_open((char *)tmpname, | |
2748 O_RDONLY | O_EXTRA, 0)) < 0) | |
2749 errmsg = (char_u *)_("can't read output of 'charconvert'"); | |
2750 } | |
2751 | |
2752 if (errmsg != NULL) | |
2753 { | |
2754 /* Don't use emsg(), it breaks mappings, the retry with | |
2755 * another type of conversion might still work. */ | |
2756 MSG(errmsg); | |
2757 if (tmpname != NULL) | |
2758 { | |
2759 mch_remove(tmpname); /* delete converted file */ | |
2760 vim_free(tmpname); | |
2761 tmpname = NULL; | |
2762 } | |
2763 } | |
2764 | |
2765 /* If the input file is closed, open it (caller should check for error). */ | |
2766 if (*fdp < 0) | |
2767 *fdp = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0); | |
2768 | |
2769 return tmpname; | |
2770 } | |
2771 # endif | |
2772 | |
2773 #endif | |
2774 | |
2775 #ifdef FEAT_VIMINFO | |
2776 /* | |
2777 * Read marks for the current buffer from the viminfo file, when we support | |
2778 * buffer marks and the buffer has a name. | |
2779 */ | |
2780 static void | |
2781 check_marks_read() | |
2782 { | |
2783 if (!curbuf->b_marks_read && get_viminfo_parameter('\'') > 0 | |
2784 && curbuf->b_ffname != NULL) | |
1733 | 2785 read_viminfo(NULL, VIF_WANT_MARKS); |
7 | 2786 |
2787 /* Always set b_marks_read; needed when 'viminfo' is changed to include | |
2788 * the ' parameter after opening a buffer. */ | |
2789 curbuf->b_marks_read = TRUE; | |
2790 } | |
2791 #endif | |
2792 | |
2793 #ifdef FEAT_CRYPT | |
2794 /* | |
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2795 * Get the crypt method used for a file from "ptr[len]", the magic text at the |
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2796 * start of the file. |
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2797 * Returns -1 when no encryption used. |
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2798 */ |
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2799 static int |
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2800 get_crypt_method(ptr, len) |
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2801 char *ptr; |
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2802 int len; |
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2803 { |
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2804 int i; |
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2805 |
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2806 for (i = 0; i < (int)(sizeof(crypt_magic) / sizeof(crypt_magic[0])); i++) |
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2807 { |
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2808 if (len < (CRYPT_MAGIC_LEN + crypt_seed_len[i])) |
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2809 continue; |
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2810 if (memcmp(ptr, crypt_magic[i], CRYPT_MAGIC_LEN) == 0) |
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2811 return i; |
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2812 } |
2204
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2813 |
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2814 i = STRLEN(crypt_magic_head); |
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2815 if (len >= i && memcmp(ptr, crypt_magic_head, i) == 0) |
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2816 EMSG(_("E821: File is encrypted with unknown method")); |
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2817 |
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2818 return -1; |
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2819 } |
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2820 |
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2821 /* |
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2822 * Check for magic number used for encryption. Applies to the current buffer. |
7 | 2823 * If found, the magic number is removed from ptr[*sizep] and *sizep and |
2824 * *filesizep are updated. | |
2825 * Return the (new) encryption key, NULL for no encryption. | |
2826 */ | |
2827 static char_u * | |
2204
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2828 check_for_cryptkey(cryptkey, ptr, sizep, filesizep, newfile, did_ask) |
7 | 2829 char_u *cryptkey; /* previous encryption key or NULL */ |
2830 char_u *ptr; /* pointer to read bytes */ | |
2831 long *sizep; /* length of read bytes */ | |
2832 long *filesizep; /* nr of bytes used from file */ | |
2833 int newfile; /* editing a new buffer */ | |
2204
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2834 int *did_ask; /* flag: whether already asked for key */ |
7 | 2835 { |
2180
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2836 int method = get_crypt_method((char *)ptr, *sizep); |
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2837 |
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2838 if (method >= 0) |
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2839 { |
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2840 curbuf->b_p_cm = method; |
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2841 use_crypt_method = method; |
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2842 if (method > 0) |
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2843 (void)blowfish_self_test(); |
2204
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2844 if (cryptkey == NULL && !*did_ask) |
7 | 2845 { |
2846 if (*curbuf->b_p_key) | |
2847 cryptkey = curbuf->b_p_key; | |
2848 else | |
2849 { | |
2180
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2850 /* When newfile is TRUE, store the typed key in the 'key' |
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2851 * option and don't free it. bf needs hash of the key saved. |
2204
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2852 * Don't ask for the key again when first time Enter was hit. |
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2853 * Happens when retrying to detect encoding. */ |
7 | 2854 cryptkey = get_crypt_key(newfile, FALSE); |
2204
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2855 *did_ask = TRUE; |
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2856 |
7 | 2857 /* check if empty key entered */ |
2858 if (cryptkey != NULL && *cryptkey == NUL) | |
2859 { | |
2860 if (cryptkey != curbuf->b_p_key) | |
2861 vim_free(cryptkey); | |
2862 cryptkey = NULL; | |
2863 } | |
2864 } | |
2865 } | |
2866 | |
2867 if (cryptkey != NULL) | |
2868 { | |
2180
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2869 int seed_len = crypt_seed_len[method]; |
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2870 |
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2871 if (method == 0) |
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2872 crypt_init_keys(cryptkey); |
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2873 else |
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2874 { |
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2875 bf_key_init(cryptkey); |
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2876 bf_ofb_init(ptr + CRYPT_MAGIC_LEN, seed_len); |
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2877 } |
7 | 2878 |
2879 /* Remove magic number from the text */ | |
2180
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2880 *filesizep += CRYPT_MAGIC_LEN + seed_len; |
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2881 *sizep -= CRYPT_MAGIC_LEN + seed_len; |
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2882 mch_memmove(ptr, ptr + CRYPT_MAGIC_LEN + seed_len, (size_t)*sizep); |
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2883 } |
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2884 } |
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2885 /* When starting to edit a new file which does not have encryption, clear |
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2886 * the 'key' option, except when starting up (called with -x argument) */ |
7 | 2887 else if (newfile && *curbuf->b_p_key && !starting) |
2888 set_option_value((char_u *)"key", 0L, (char_u *)"", OPT_LOCAL); | |
2889 | |
2890 return cryptkey; | |
2891 } | |
2892 #endif | |
2893 | |
2894 #ifdef UNIX | |
2895 static void | |
2896 set_file_time(fname, atime, mtime) | |
2897 char_u *fname; | |
2898 time_t atime; /* access time */ | |
2899 time_t mtime; /* modification time */ | |
2900 { | |
2901 # if defined(HAVE_UTIME) && defined(HAVE_UTIME_H) | |
2902 struct utimbuf buf; | |
2903 | |
2904 buf.actime = atime; | |
2905 buf.modtime = mtime; | |
2906 (void)utime((char *)fname, &buf); | |
2907 # else | |
2908 # if defined(HAVE_UTIMES) | |
2909 struct timeval tvp[2]; | |
2910 | |
2911 tvp[0].tv_sec = atime; | |
2912 tvp[0].tv_usec = 0; | |
2913 tvp[1].tv_sec = mtime; | |
2914 tvp[1].tv_usec = 0; | |
2915 # ifdef NeXT | |
2916 (void)utimes((char *)fname, tvp); | |
2917 # else | |
2918 (void)utimes((char *)fname, (const struct timeval *)&tvp); | |
2919 # endif | |
2920 # endif | |
2921 # endif | |
2922 } | |
2923 #endif /* UNIX */ | |
2924 | |
22 | 2925 #if defined(VMS) && !defined(MIN) |
2926 /* Older DECC compiler for VAX doesn't define MIN() */ | |
2927 # define MIN(a, b) ((a) < (b) ? (a) : (b)) | |
2928 #endif | |
2929 | |
7 | 2930 /* |
1303 | 2931 * Return TRUE if a file appears to be read-only from the file permissions. |
2932 */ | |
2933 int | |
2934 check_file_readonly(fname, perm) | |
2935 char_u *fname; /* full path to file */ | |
2936 int perm; /* known permissions on file */ | |
2937 { | |
2938 #ifndef USE_MCH_ACCESS | |
2939 int fd = 0; | |
2940 #endif | |
2941 | |
2942 return ( | |
2943 #ifdef USE_MCH_ACCESS | |
2944 # ifdef UNIX | |
2945 (perm & 0222) == 0 || | |
2946 # endif | |
2947 mch_access((char *)fname, W_OK) | |
2948 #else | |
2949 (fd = mch_open((char *)fname, O_RDWR | O_EXTRA, 0)) < 0 | |
2950 ? TRUE : (close(fd), FALSE) | |
2951 #endif | |
2952 ); | |
2953 } | |
2954 | |
2955 | |
2956 /* | |
589 | 2957 * buf_write() - write to file "fname" lines "start" through "end" |
7 | 2958 * |
2959 * We do our own buffering here because fwrite() is so slow. | |
2960 * | |
589 | 2961 * If "forceit" is true, we don't care for errors when attempting backups. |
2962 * In case of an error everything possible is done to restore the original | |
1698 | 2963 * file. But when "forceit" is TRUE, we risk losing it. |
589 | 2964 * |
2965 * When "reset_changed" is TRUE and "append" == FALSE and "start" == 1 and | |
2966 * "end" == curbuf->b_ml.ml_line_count, reset curbuf->b_changed. | |
7 | 2967 * |
2968 * This function must NOT use NameBuff (because it's called by autowrite()). | |
2969 * | |
2970 * return FAIL for failure, OK otherwise | |
2971 */ | |
2972 int | |
2973 buf_write(buf, fname, sfname, start, end, eap, append, forceit, | |
2974 reset_changed, filtering) | |
2975 buf_T *buf; | |
2976 char_u *fname; | |
2977 char_u *sfname; | |
2978 linenr_T start, end; | |
2979 exarg_T *eap; /* for forced 'ff' and 'fenc', can be | |
2980 NULL! */ | |
589 | 2981 int append; /* append to the file */ |
7 | 2982 int forceit; |
2983 int reset_changed; | |
2984 int filtering; | |
2985 { | |
2986 int fd; | |
2987 char_u *backup = NULL; | |
2988 int backup_copy = FALSE; /* copy the original file? */ | |
2989 int dobackup; | |
2990 char_u *ffname; | |
2991 char_u *wfname = NULL; /* name of file to write to */ | |
2992 char_u *s; | |
2993 char_u *ptr; | |
2994 char_u c; | |
2995 int len; | |
2996 linenr_T lnum; | |
2997 long nchars; | |
2998 char_u *errmsg = NULL; | |
1947 | 2999 int errmsg_allocated = FALSE; |
7 | 3000 char_u *errnum = NULL; |
3001 char_u *buffer; | |
3002 char_u smallbuf[SMBUFSIZE]; | |
3003 char_u *backup_ext; | |
3004 int bufsize; | |
3005 long perm; /* file permissions */ | |
3006 int retval = OK; | |
3007 int newfile = FALSE; /* TRUE if file doesn't exist yet */ | |
3008 int msg_save = msg_scroll; | |
3009 int overwriting; /* TRUE if writing over original */ | |
3010 int no_eol = FALSE; /* no end-of-line written */ | |
3011 int device = FALSE; /* writing to a device */ | |
3012 struct stat st_old; | |
3013 int prev_got_int = got_int; | |
3014 int file_readonly = FALSE; /* overwritten file is read-only */ | |
3015 static char *err_readonly = "is read-only (cannot override: \"W\" in 'cpoptions')"; | |
3016 #if defined(UNIX) || defined(__EMX__XX) /*XXX fix me sometime? */ | |
3017 int made_writable = FALSE; /* 'w' bit has been set */ | |
3018 #endif | |
3019 /* writing everything */ | |
3020 int whole = (start == 1 && end == buf->b_ml.ml_line_count); | |
3021 #ifdef FEAT_AUTOCMD | |
3022 linenr_T old_line_count = buf->b_ml.ml_line_count; | |
3023 #endif | |
3024 int attr; | |
3025 int fileformat; | |
3026 int write_bin; | |
3027 struct bw_info write_info; /* info for buf_write_bytes() */ | |
3028 #ifdef FEAT_MBYTE | |
3029 int converted = FALSE; | |
3030 int notconverted = FALSE; | |
3031 char_u *fenc; /* effective 'fileencoding' */ | |
3032 char_u *fenc_tofree = NULL; /* allocated "fenc" */ | |
3033 #endif | |
3034 #ifdef HAS_BW_FLAGS | |
3035 int wb_flags = 0; | |
3036 #endif | |
3037 #ifdef HAVE_ACL | |
3038 vim_acl_T acl = NULL; /* ACL copied from original file to | |
3039 backup or new file */ | |
3040 #endif | |
3041 | |
3042 if (fname == NULL || *fname == NUL) /* safety check */ | |
3043 return FAIL; | |
2028 | 3044 if (buf->b_ml.ml_mfp == NULL) |
3045 { | |
3046 /* This can happen during startup when there is a stray "w" in the | |
3047 * vimrc file. */ | |
3048 EMSG(_(e_emptybuf)); | |
3049 return FAIL; | |
3050 } | |
7 | 3051 |
3052 /* | |
3053 * Disallow writing from .exrc and .vimrc in current directory for | |
3054 * security reasons. | |
3055 */ | |
3056 if (check_secure()) | |
3057 return FAIL; | |
3058 | |
3059 /* Avoid a crash for a long name. */ | |
3060 if (STRLEN(fname) >= MAXPATHL) | |
3061 { | |
3062 EMSG(_(e_longname)); | |
3063 return FAIL; | |
3064 } | |
3065 | |
3066 #ifdef FEAT_MBYTE | |
3067 /* must init bw_conv_buf and bw_iconv_fd before jumping to "fail" */ | |
3068 write_info.bw_conv_buf = NULL; | |
3069 write_info.bw_conv_error = FALSE; | |
1947 | 3070 write_info.bw_conv_error_lnum = 0; |
7 | 3071 write_info.bw_restlen = 0; |
3072 # ifdef USE_ICONV | |
3073 write_info.bw_iconv_fd = (iconv_t)-1; | |
3074 # endif | |
3075 #endif | |
3076 | |
167 | 3077 /* After writing a file changedtick changes but we don't want to display |
3078 * the line. */ | |
3079 ex_no_reprint = TRUE; | |
3080 | |
7 | 3081 /* |
3082 * If there is no file name yet, use the one for the written file. | |
3083 * BF_NOTEDITED is set to reflect this (in case the write fails). | |
3084 * Don't do this when the write is for a filter command. | |
589 | 3085 * Don't do this when appending. |
3086 * Only do this when 'cpoptions' contains the 'F' flag. | |
7 | 3087 */ |
633 | 3088 if (buf->b_ffname == NULL |
3089 && reset_changed | |
7 | 3090 && whole |
3091 && buf == curbuf | |
236 | 3092 #ifdef FEAT_QUICKFIX |
3093 && !bt_nofile(buf) | |
3094 #endif | |
7 | 3095 && !filtering |
589 | 3096 && (!append || vim_strchr(p_cpo, CPO_FNAMEAPP) != NULL) |
7 | 3097 && vim_strchr(p_cpo, CPO_FNAMEW) != NULL) |
3098 { | |
633 | 3099 if (set_rw_fname(fname, sfname) == FAIL) |
7 | 3100 return FAIL; |
633 | 3101 buf = curbuf; /* just in case autocmds made "buf" invalid */ |
7 | 3102 } |
3103 | |
3104 if (sfname == NULL) | |
3105 sfname = fname; | |
3106 /* | |
3107 * For Unix: Use the short file name whenever possible. | |
3108 * Avoids problems with networks and when directory names are changed. | |
3109 * Don't do this for MS-DOS, a "cd" in a sub-shell may have moved us to | |
3110 * another directory, which we don't detect | |
3111 */ | |
3112 ffname = fname; /* remember full fname */ | |
3113 #ifdef UNIX | |
3114 fname = sfname; | |
3115 #endif | |
3116 | |
3117 if (buf->b_ffname != NULL && fnamecmp(ffname, buf->b_ffname) == 0) | |
3118 overwriting = TRUE; | |
3119 else | |
3120 overwriting = FALSE; | |
3121 | |
3122 if (exiting) | |
3123 settmode(TMODE_COOK); /* when exiting allow typahead now */ | |
3124 | |
3125 ++no_wait_return; /* don't wait for return yet */ | |
3126 | |
3127 /* | |
3128 * Set '[ and '] marks to the lines to be written. | |
3129 */ | |
3130 buf->b_op_start.lnum = start; | |
3131 buf->b_op_start.col = 0; | |
3132 buf->b_op_end.lnum = end; | |
3133 buf->b_op_end.col = 0; | |
3134 | |
3135 #ifdef FEAT_AUTOCMD | |
3136 { | |
3137 aco_save_T aco; | |
3138 int buf_ffname = FALSE; | |
3139 int buf_sfname = FALSE; | |
3140 int buf_fname_f = FALSE; | |
3141 int buf_fname_s = FALSE; | |
3142 int did_cmd = FALSE; | |
17 | 3143 int nofile_err = FALSE; |
161 | 3144 int empty_memline = (buf->b_ml.ml_mfp == NULL); |
7 | 3145 |
3146 /* | |
3147 * Apply PRE aucocommands. | |
3148 * Set curbuf to the buffer to be written. | |
3149 * Careful: The autocommands may call buf_write() recursively! | |
3150 */ | |
3151 if (ffname == buf->b_ffname) | |
3152 buf_ffname = TRUE; | |
3153 if (sfname == buf->b_sfname) | |
3154 buf_sfname = TRUE; | |
3155 if (fname == buf->b_ffname) | |
3156 buf_fname_f = TRUE; | |
3157 if (fname == buf->b_sfname) | |
3158 buf_fname_s = TRUE; | |
3159 | |
3160 /* set curwin/curbuf to buf and save a few things */ | |
3161 aucmd_prepbuf(&aco, buf); | |
3162 | |
3163 if (append) | |
3164 { | |
3165 if (!(did_cmd = apply_autocmds_exarg(EVENT_FILEAPPENDCMD, | |
3166 sfname, sfname, FALSE, curbuf, eap))) | |
17 | 3167 { |
635 | 3168 #ifdef FEAT_QUICKFIX |
18 | 3169 if (overwriting && bt_nofile(curbuf)) |
17 | 3170 nofile_err = TRUE; |
3171 else | |
635 | 3172 #endif |
17 | 3173 apply_autocmds_exarg(EVENT_FILEAPPENDPRE, |
7 | 3174 sfname, sfname, FALSE, curbuf, eap); |
17 | 3175 } |
7 | 3176 } |
3177 else if (filtering) | |
3178 { | |
3179 apply_autocmds_exarg(EVENT_FILTERWRITEPRE, | |
3180 NULL, sfname, FALSE, curbuf, eap); | |
3181 } | |
3182 else if (reset_changed && whole) | |
3183 { | |
3184 if (!(did_cmd = apply_autocmds_exarg(EVENT_BUFWRITECMD, | |
3185 sfname, sfname, FALSE, curbuf, eap))) | |
17 | 3186 { |
635 | 3187 #ifdef FEAT_QUICKFIX |
179 | 3188 if (overwriting && bt_nofile(curbuf)) |
17 | 3189 nofile_err = TRUE; |
3190 else | |
635 | 3191 #endif |
17 | 3192 apply_autocmds_exarg(EVENT_BUFWRITEPRE, |
7 | 3193 sfname, sfname, FALSE, curbuf, eap); |
17 | 3194 } |
7 | 3195 } |
3196 else | |
3197 { | |
3198 if (!(did_cmd = apply_autocmds_exarg(EVENT_FILEWRITECMD, | |
3199 sfname, sfname, FALSE, curbuf, eap))) | |
17 | 3200 { |
635 | 3201 #ifdef FEAT_QUICKFIX |
179 | 3202 if (overwriting && bt_nofile(curbuf)) |
17 | 3203 nofile_err = TRUE; |
3204 else | |
635 | 3205 #endif |
17 | 3206 apply_autocmds_exarg(EVENT_FILEWRITEPRE, |
7 | 3207 sfname, sfname, FALSE, curbuf, eap); |
17 | 3208 } |
7 | 3209 } |
3210 | |
3211 /* restore curwin/curbuf and a few other things */ | |
3212 aucmd_restbuf(&aco); | |
3213 | |
3214 /* | |
3215 * In three situations we return here and don't write the file: | |
3216 * 1. the autocommands deleted or unloaded the buffer. | |
3217 * 2. The autocommands abort script processing. | |
3218 * 3. If one of the "Cmd" autocommands was executed. | |
3219 */ | |
3220 if (!buf_valid(buf)) | |
3221 buf = NULL; | |
161 | 3222 if (buf == NULL || (buf->b_ml.ml_mfp == NULL && !empty_memline) |
532 | 3223 || did_cmd || nofile_err |
3224 #ifdef FEAT_EVAL | |
3225 || aborting() | |
3226 #endif | |
3227 ) | |
7 | 3228 { |
3229 --no_wait_return; | |
3230 msg_scroll = msg_save; | |
17 | 3231 if (nofile_err) |
3232 EMSG(_("E676: No matching autocommands for acwrite buffer")); | |
3233 | |
532 | 3234 if (nofile_err |
3235 #ifdef FEAT_EVAL | |
3236 || aborting() | |
3237 #endif | |
3238 ) | |
7 | 3239 /* An aborting error, interrupt or exception in the |
3240 * autocommands. */ | |
3241 return FAIL; | |
3242 if (did_cmd) | |
3243 { | |
3244 if (buf == NULL) | |
3245 /* The buffer was deleted. We assume it was written | |
3246 * (can't retry anyway). */ | |
3247 return OK; | |
3248 if (overwriting) | |
3249 { | |
3250 /* Assume the buffer was written, update the timestamp. */ | |
3251 ml_timestamp(buf); | |
589 | 3252 if (append) |
3253 buf->b_flags &= ~BF_NEW; | |
3254 else | |
3255 buf->b_flags &= ~BF_WRITE_MASK; | |
7 | 3256 } |
589 | 3257 if (reset_changed && buf->b_changed && !append |
39 | 3258 && (overwriting || vim_strchr(p_cpo, CPO_PLUS) != NULL)) |
7 | 3259 /* Buffer still changed, the autocommands didn't work |
3260 * properly. */ | |
3261 return FAIL; | |
3262 return OK; | |
3263 } | |
3264 #ifdef FEAT_EVAL | |
3265 if (!aborting()) | |
3266 #endif | |
3267 EMSG(_("E203: Autocommands deleted or unloaded buffer to be written")); | |
3268 return FAIL; | |
3269 } | |
3270 | |
3271 /* | |
3272 * The autocommands may have changed the number of lines in the file. | |
3273 * When writing the whole file, adjust the end. | |
3274 * When writing part of the file, assume that the autocommands only | |
3275 * changed the number of lines that are to be written (tricky!). | |
3276 */ | |
3277 if (buf->b_ml.ml_line_count != old_line_count) | |
3278 { | |
3279 if (whole) /* write all */ | |
3280 end = buf->b_ml.ml_line_count; | |
3281 else if (buf->b_ml.ml_line_count > old_line_count) /* more lines */ | |
3282 end += buf->b_ml.ml_line_count - old_line_count; | |
3283 else /* less lines */ | |
3284 { | |
3285 end -= old_line_count - buf->b_ml.ml_line_count; | |
3286 if (end < start) | |
3287 { | |
3288 --no_wait_return; | |
3289 msg_scroll = msg_save; | |
3290 EMSG(_("E204: Autocommand changed number of lines in unexpected way")); | |
3291 return FAIL; | |
3292 } | |
3293 } | |
3294 } | |
3295 | |
3296 /* | |
3297 * The autocommands may have changed the name of the buffer, which may | |
3298 * be kept in fname, ffname and sfname. | |
3299 */ | |
3300 if (buf_ffname) | |
3301 ffname = buf->b_ffname; | |
3302 if (buf_sfname) | |
3303 sfname = buf->b_sfname; | |
3304 if (buf_fname_f) | |
3305 fname = buf->b_ffname; | |
3306 if (buf_fname_s) | |
3307 fname = buf->b_sfname; | |
3308 } | |
3309 #endif | |
3310 | |
3311 #ifdef FEAT_NETBEANS_INTG | |
3312 if (usingNetbeans && isNetbeansBuffer(buf)) | |
3313 { | |
3314 if (whole) | |
3315 { | |
3316 /* | |
3317 * b_changed can be 0 after an undo, but we still need to write | |
3318 * the buffer to NetBeans. | |
3319 */ | |
3320 if (buf->b_changed || isNetbeansModified(buf)) | |
3321 { | |
33 | 3322 --no_wait_return; /* may wait for return now */ |
3323 msg_scroll = msg_save; | |
3324 netbeans_save_buffer(buf); /* no error checking... */ | |
7 | 3325 return retval; |
3326 } | |
3327 else | |
3328 { | |
3329 errnum = (char_u *)"E656: "; | |
1653 | 3330 errmsg = (char_u *)_("NetBeans disallows writes of unmodified buffers"); |
7 | 3331 buffer = NULL; |
3332 goto fail; | |
3333 } | |
3334 } | |
3335 else | |
3336 { | |
3337 errnum = (char_u *)"E657: "; | |
3338 errmsg = (char_u *)_("Partial writes disallowed for NetBeans buffers"); | |
3339 buffer = NULL; | |
3340 goto fail; | |
3341 } | |
3342 } | |
3343 #endif | |
3344 | |
3345 if (shortmess(SHM_OVER) && !exiting) | |
3346 msg_scroll = FALSE; /* overwrite previous file message */ | |
3347 else | |
3348 msg_scroll = TRUE; /* don't overwrite previous file message */ | |
3349 if (!filtering) | |
3350 filemess(buf, | |
3351 #ifndef UNIX | |
3352 sfname, | |
3353 #else | |
3354 fname, | |
3355 #endif | |
3356 (char_u *)"", 0); /* show that we are busy */ | |
3357 msg_scroll = FALSE; /* always overwrite the file message now */ | |
3358 | |
3359 buffer = alloc(BUFSIZE); | |
3360 if (buffer == NULL) /* can't allocate big buffer, use small | |
3361 * one (to be able to write when out of | |
3362 * memory) */ | |
3363 { | |
3364 buffer = smallbuf; | |
3365 bufsize = SMBUFSIZE; | |
3366 } | |
3367 else | |
3368 bufsize = BUFSIZE; | |
3369 | |
3370 /* | |
3371 * Get information about original file (if there is one). | |
3372 */ | |
3373 #if defined(UNIX) && !defined(ARCHIE) | |
1438 | 3374 st_old.st_dev = 0; |
3375 st_old.st_ino = 0; | |
7 | 3376 perm = -1; |
3377 if (mch_stat((char *)fname, &st_old) < 0) | |
3378 newfile = TRUE; | |
3379 else | |
3380 { | |
3381 perm = st_old.st_mode; | |
3382 if (!S_ISREG(st_old.st_mode)) /* not a file */ | |
3383 { | |
3384 if (S_ISDIR(st_old.st_mode)) | |
3385 { | |
3386 errnum = (char_u *)"E502: "; | |
3387 errmsg = (char_u *)_("is a directory"); | |
3388 goto fail; | |
3389 } | |
3390 if (mch_nodetype(fname) != NODE_WRITABLE) | |
3391 { | |
3392 errnum = (char_u *)"E503: "; | |
3393 errmsg = (char_u *)_("is not a file or writable device"); | |
3394 goto fail; | |
3395 } | |
3396 /* It's a device of some kind (or a fifo) which we can write to | |
3397 * but for which we can't make a backup. */ | |
3398 device = TRUE; | |
3399 newfile = TRUE; | |
3400 perm = -1; | |
3401 } | |
3402 } | |
3403 #else /* !UNIX */ | |
3404 /* | |
3405 * Check for a writable device name. | |
3406 */ | |
3407 c = mch_nodetype(fname); | |
3408 if (c == NODE_OTHER) | |
3409 { | |
3410 errnum = (char_u *)"E503: "; | |
3411 errmsg = (char_u *)_("is not a file or writable device"); | |
3412 goto fail; | |
3413 } | |
3414 if (c == NODE_WRITABLE) | |
3415 { | |
1004 | 3416 # if defined(MSDOS) || defined(MSWIN) || defined(OS2) |
3417 /* MS-Windows allows opening a device, but we will probably get stuck | |
3418 * trying to write to it. */ | |
3419 if (!p_odev) | |
3420 { | |
3421 errnum = (char_u *)"E796: "; | |
3422 errmsg = (char_u *)_("writing to device disabled with 'opendevice' option"); | |
3423 goto fail; | |
3424 } | |
3425 # endif | |
7 | 3426 device = TRUE; |
3427 newfile = TRUE; | |
3428 perm = -1; | |
3429 } | |
3430 else | |
3431 { | |
3432 perm = mch_getperm(fname); | |
3433 if (perm < 0) | |
3434 newfile = TRUE; | |
3435 else if (mch_isdir(fname)) | |
3436 { | |
3437 errnum = (char_u *)"E502: "; | |
3438 errmsg = (char_u *)_("is a directory"); | |
3439 goto fail; | |
3440 } | |
3441 if (overwriting) | |
3442 (void)mch_stat((char *)fname, &st_old); | |
3443 } | |
3444 #endif /* !UNIX */ | |
3445 | |
3446 if (!device && !newfile) | |
3447 { | |
3448 /* | |
3449 * Check if the file is really writable (when renaming the file to | |
3450 * make a backup we won't discover it later). | |
3451 */ | |
1303 | 3452 file_readonly = check_file_readonly(fname, (int)perm); |
3453 | |
7 | 3454 if (!forceit && file_readonly) |
3455 { | |
3456 if (vim_strchr(p_cpo, CPO_FWRITE) != NULL) | |
3457 { | |
3458 errnum = (char_u *)"E504: "; | |
3459 errmsg = (char_u *)_(err_readonly); | |
3460 } | |
3461 else | |
3462 { | |
3463 errnum = (char_u *)"E505: "; | |
3464 errmsg = (char_u *)_("is read-only (add ! to override)"); | |
3465 } | |
3466 goto fail; | |
3467 } | |
3468 | |
3469 /* | |
3470 * Check if the timestamp hasn't changed since reading the file. | |
3471 */ | |
3472 if (overwriting) | |
3473 { | |
3474 retval = check_mtime(buf, &st_old); | |
3475 if (retval == FAIL) | |
3476 goto fail; | |
3477 } | |
3478 } | |
3479 | |
3480 #ifdef HAVE_ACL | |
3481 /* | |
3482 * For systems that support ACL: get the ACL from the original file. | |
3483 */ | |
3484 if (!newfile) | |
3485 acl = mch_get_acl(fname); | |
3486 #endif | |
3487 | |
3488 /* | |
3489 * If 'backupskip' is not empty, don't make a backup for some files. | |
3490 */ | |
3491 dobackup = (p_wb || p_bk || *p_pm != NUL); | |
3492 #ifdef FEAT_WILDIGN | |
3493 if (dobackup && *p_bsk != NUL && match_file_list(p_bsk, sfname, ffname)) | |
3494 dobackup = FALSE; | |
3495 #endif | |
3496 | |
3497 /* | |
3498 * Save the value of got_int and reset it. We don't want a previous | |
3499 * interruption cancel writing, only hitting CTRL-C while writing should | |
3500 * abort it. | |
3501 */ | |
3502 prev_got_int = got_int; | |
3503 got_int = FALSE; | |
3504 | |
3505 /* Mark the buffer as 'being saved' to prevent changed buffer warnings */ | |
3506 buf->b_saving = TRUE; | |
3507 | |
3508 /* | |
3509 * If we are not appending or filtering, the file exists, and the | |
3510 * 'writebackup', 'backup' or 'patchmode' option is set, need a backup. | |
3511 * When 'patchmode' is set also make a backup when appending. | |
3512 * | |
3513 * Do not make any backup, if 'writebackup' and 'backup' are both switched | |
3514 * off. This helps when editing large files on almost-full disks. | |
3515 */ | |
3516 if (!(append && *p_pm == NUL) && !filtering && perm >= 0 && dobackup) | |
3517 { | |
3518 #if defined(UNIX) || defined(WIN32) | |
3519 struct stat st; | |
3520 #endif | |
3521 | |
3522 if ((bkc_flags & BKC_YES) || append) /* "yes" */ | |
3523 backup_copy = TRUE; | |
3524 #if defined(UNIX) || defined(WIN32) | |
3525 else if ((bkc_flags & BKC_AUTO)) /* "auto" */ | |
3526 { | |
3527 int i; | |
3528 | |
3529 # ifdef UNIX | |
3530 /* | |
3531 * Don't rename the file when: | |
3532 * - it's a hard link | |
3533 * - it's a symbolic link | |
3534 * - we don't have write permission in the directory | |
3535 * - we can't set the owner/group of the new file | |
3536 */ | |
3537 if (st_old.st_nlink > 1 | |
3538 || mch_lstat((char *)fname, &st) < 0 | |
3539 || st.st_dev != st_old.st_dev | |
557 | 3540 || st.st_ino != st_old.st_ino |
3541 # ifndef HAVE_FCHOWN | |
3542 || st.st_uid != st_old.st_uid | |
3543 || st.st_gid != st_old.st_gid | |
3544 # endif | |
3545 ) | |
7 | 3546 backup_copy = TRUE; |
3547 else | |
696 | 3548 # else |
3549 # ifdef WIN32 | |
3550 /* On NTFS file systems hard links are possible. */ | |
3551 if (mch_is_linked(fname)) | |
3552 backup_copy = TRUE; | |
3553 else | |
3554 # endif | |
7 | 3555 # endif |
3556 { | |
3557 /* | |
3558 * Check if we can create a file and set the owner/group to | |
3559 * the ones from the original file. | |
3560 * First find a file name that doesn't exist yet (use some | |
3561 * arbitrary numbers). | |
3562 */ | |
3563 STRCPY(IObuff, fname); | |
3564 for (i = 4913; ; i += 123) | |
3565 { | |
3566 sprintf((char *)gettail(IObuff), "%d", i); | |
557 | 3567 if (mch_lstat((char *)IObuff, &st) < 0) |
7 | 3568 break; |
3569 } | |
557 | 3570 fd = mch_open((char *)IObuff, |
3571 O_CREAT|O_WRONLY|O_EXCL|O_NOFOLLOW, perm); | |
7 | 3572 if (fd < 0) /* can't write in directory */ |
3573 backup_copy = TRUE; | |
3574 else | |
3575 { | |
3576 # ifdef UNIX | |
557 | 3577 # ifdef HAVE_FCHOWN |
1757 | 3578 ignored = fchown(fd, st_old.st_uid, st_old.st_gid); |
557 | 3579 # endif |
7 | 3580 if (mch_stat((char *)IObuff, &st) < 0 |
3581 || st.st_uid != st_old.st_uid | |
3582 || st.st_gid != st_old.st_gid | |
1877 | 3583 || (long)st.st_mode != perm) |
7 | 3584 backup_copy = TRUE; |
3585 # endif | |
567 | 3586 /* Close the file before removing it, on MS-Windows we |
3587 * can't delete an open file. */ | |
3588 close(fd); | |
7 | 3589 mch_remove(IObuff); |
3590 } | |
3591 } | |
3592 } | |
3593 | |
3594 # ifdef UNIX | |
3595 /* | |
3596 * Break symlinks and/or hardlinks if we've been asked to. | |
3597 */ | |
3598 if ((bkc_flags & BKC_BREAKSYMLINK) || (bkc_flags & BKC_BREAKHARDLINK)) | |
3599 { | |
3600 int lstat_res; | |
3601 | |
3602 lstat_res = mch_lstat((char *)fname, &st); | |
3603 | |
3604 /* Symlinks. */ | |
3605 if ((bkc_flags & BKC_BREAKSYMLINK) | |
3606 && lstat_res == 0 | |
3607 && st.st_ino != st_old.st_ino) | |
3608 backup_copy = FALSE; | |
3609 | |
3610 /* Hardlinks. */ | |
3611 if ((bkc_flags & BKC_BREAKHARDLINK) | |
3612 && st_old.st_nlink > 1 | |
3613 && (lstat_res != 0 || st.st_ino == st_old.st_ino)) | |
3614 backup_copy = FALSE; | |
3615 } | |
3616 #endif | |
3617 | |
3618 #endif | |
3619 | |
3620 /* make sure we have a valid backup extension to use */ | |
3621 if (*p_bex == NUL) | |
3622 { | |
3623 #ifdef RISCOS | |
3624 backup_ext = (char_u *)"/bak"; | |
3625 #else | |
3626 backup_ext = (char_u *)".bak"; | |
3627 #endif | |
3628 } | |
3629 else | |
3630 backup_ext = p_bex; | |
3631 | |
3632 if (backup_copy | |
3633 && (fd = mch_open((char *)fname, O_RDONLY | O_EXTRA, 0)) >= 0) | |
3634 { | |
3635 int bfd; | |
3636 char_u *copybuf, *wp; | |
3637 int some_error = FALSE; | |
3638 struct stat st_new; | |
3639 char_u *dirp; | |
3640 char_u *rootname; | |
344 | 3641 #if defined(UNIX) && !defined(SHORT_FNAME) |
7 | 3642 int did_set_shortname; |
3643 #endif | |
3644 | |
3645 copybuf = alloc(BUFSIZE + 1); | |
3646 if (copybuf == NULL) | |
3647 { | |
3648 some_error = TRUE; /* out of memory */ | |
3649 goto nobackup; | |
3650 } | |
3651 | |
3652 /* | |
3653 * Try to make the backup in each directory in the 'bdir' option. | |
3654 * | |
3655 * Unix semantics has it, that we may have a writable file, | |
3656 * that cannot be recreated with a simple open(..., O_CREAT, ) e.g: | |
3657 * - the directory is not writable, | |
3658 * - the file may be a symbolic link, | |
3659 * - the file may belong to another user/group, etc. | |
3660 * | |
3661 * For these reasons, the existing writable file must be truncated | |
3662 * and reused. Creation of a backup COPY will be attempted. | |
3663 */ | |
3664 dirp = p_bdir; | |
3665 while (*dirp) | |
3666 { | |
3667 #ifdef UNIX | |
3668 st_new.st_ino = 0; | |
3669 st_new.st_dev = 0; | |
3670 st_new.st_gid = 0; | |
3671 #endif | |
3672 | |
3673 /* | |
3674 * Isolate one directory name, using an entry in 'bdir'. | |
3675 */ | |
3676 (void)copy_option_part(&dirp, copybuf, BUFSIZE, ","); | |
3677 rootname = get_file_in_dir(fname, copybuf); | |
3678 if (rootname == NULL) | |
3679 { | |
3680 some_error = TRUE; /* out of memory */ | |
3681 goto nobackup; | |
3682 } | |
3683 | |
344 | 3684 #if defined(UNIX) && !defined(SHORT_FNAME) |
7 | 3685 did_set_shortname = FALSE; |
3686 #endif | |
3687 | |
3688 /* | |
3689 * May try twice if 'shortname' not set. | |
3690 */ | |
3691 for (;;) | |
3692 { | |
3693 /* | |
3694 * Make backup file name. | |
3695 */ | |
3696 backup = buf_modname( | |
3697 #ifdef SHORT_FNAME | |
3698 TRUE, | |
3699 #else | |
3700 (buf->b_p_sn || buf->b_shortname), | |
3701 #endif | |
3702 rootname, backup_ext, FALSE); | |
3703 if (backup == NULL) | |
3704 { | |
3705 vim_free(rootname); | |
3706 some_error = TRUE; /* out of memory */ | |
3707 goto nobackup; | |
3708 } | |
3709 | |
3710 /* | |
3711 * Check if backup file already exists. | |
3712 */ | |
3713 if (mch_stat((char *)backup, &st_new) >= 0) | |
3714 { | |
3715 #ifdef UNIX | |
3716 /* | |
3717 * Check if backup file is same as original file. | |
3718 * May happen when modname() gave the same file back. | |
3719 * E.g. silly link, or file name-length reached. | |
3720 * If we don't check here, we either ruin the file | |
3721 * when copying or erase it after writing. jw. | |
3722 */ | |
3723 if (st_new.st_dev == st_old.st_dev | |
3724 && st_new.st_ino == st_old.st_ino) | |
3725 { | |
3726 vim_free(backup); | |
3727 backup = NULL; /* no backup file to delete */ | |
3728 # ifndef SHORT_FNAME | |
3729 /* | |
3730 * may try again with 'shortname' set | |
3731 */ | |
3732 if (!(buf->b_shortname || buf->b_p_sn)) | |
3733 { | |
3734 buf->b_shortname = TRUE; | |
3735 did_set_shortname = TRUE; | |
3736 continue; | |
3737 } | |
3738 /* setting shortname didn't help */ | |
3739 if (did_set_shortname) | |
3740 buf->b_shortname = FALSE; | |
3741 # endif | |
3742 break; | |
3743 } | |
3744 #endif | |
3745 | |
3746 /* | |
3747 * If we are not going to keep the backup file, don't | |
3748 * delete an existing one, try to use another name. | |
3749 * Change one character, just before the extension. | |
3750 */ | |
3751 if (!p_bk) | |
3752 { | |
3753 wp = backup + STRLEN(backup) - 1 | |
3754 - STRLEN(backup_ext); | |
3755 if (wp < backup) /* empty file name ??? */ | |
3756 wp = backup; | |
3757 *wp = 'z'; | |
3758 while (*wp > 'a' | |
3759 && mch_stat((char *)backup, &st_new) >= 0) | |
3760 --*wp; | |
3761 /* They all exist??? Must be something wrong. */ | |
3762 if (*wp == 'a') | |
3763 { | |
3764 vim_free(backup); | |
3765 backup = NULL; | |
3766 } | |
3767 } | |
3768 } | |
3769 break; | |
3770 } | |
3771 vim_free(rootname); | |
3772 | |
3773 /* | |
3774 * Try to create the backup file | |
3775 */ | |
3776 if (backup != NULL) | |
3777 { | |
3778 /* remove old backup, if present */ | |
3779 mch_remove(backup); | |
3780 /* Open with O_EXCL to avoid the file being created while | |
3781 * we were sleeping (symlink hacker attack?) */ | |
3782 bfd = mch_open((char *)backup, | |
557 | 3783 O_WRONLY|O_CREAT|O_EXTRA|O_EXCL|O_NOFOLLOW, |
3784 perm & 0777); | |
7 | 3785 if (bfd < 0) |
3786 { | |
3787 vim_free(backup); | |
3788 backup = NULL; | |
3789 } | |
3790 else | |
3791 { | |
3792 /* set file protection same as original file, but | |
3793 * strip s-bit */ | |
3794 (void)mch_setperm(backup, perm & 0777); | |
3795 | |
3796 #ifdef UNIX | |
3797 /* | |
3798 * Try to set the group of the backup same as the | |
3799 * original file. If this fails, set the protection | |
3800 * bits for the group same as the protection bits for | |
3801 * others. | |
3802 */ | |
557 | 3803 if (st_new.st_gid != st_old.st_gid |
7 | 3804 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */ |
557 | 3805 && fchown(bfd, (uid_t)-1, st_old.st_gid) != 0 |
7 | 3806 # endif |
3807 ) | |
3808 mch_setperm(backup, | |
3809 (perm & 0707) | ((perm & 07) << 3)); | |
1583 | 3810 # ifdef HAVE_SELINUX |
3811 mch_copy_sec(fname, backup); | |
3812 # endif | |
7 | 3813 #endif |
3814 | |
3815 /* | |
3816 * copy the file. | |
3817 */ | |
3818 write_info.bw_fd = bfd; | |
3819 write_info.bw_buf = copybuf; | |
3820 #ifdef HAS_BW_FLAGS | |
3821 write_info.bw_flags = FIO_NOCONVERT; | |
3822 #endif | |
3823 while ((write_info.bw_len = vim_read(fd, copybuf, | |
3824 BUFSIZE)) > 0) | |
3825 { | |
3826 if (buf_write_bytes(&write_info) == FAIL) | |
3827 { | |
3828 errmsg = (char_u *)_("E506: Can't write to backup file (add ! to override)"); | |
3829 break; | |
3830 } | |
3831 ui_breakcheck(); | |
3832 if (got_int) | |
3833 { | |
3834 errmsg = (char_u *)_(e_interr); | |
3835 break; | |
3836 } | |
3837 } | |
3838 | |
3839 if (close(bfd) < 0 && errmsg == NULL) | |
3840 errmsg = (char_u *)_("E507: Close error for backup file (add ! to override)"); | |
3841 if (write_info.bw_len < 0) | |
3842 errmsg = (char_u *)_("E508: Can't read file for backup (add ! to override)"); | |
3843 #ifdef UNIX | |
3844 set_file_time(backup, st_old.st_atime, st_old.st_mtime); | |
3845 #endif | |
3846 #ifdef HAVE_ACL | |
3847 mch_set_acl(backup, acl); | |
3848 #endif | |
1583 | 3849 #ifdef HAVE_SELINUX |
3850 mch_copy_sec(fname, backup); | |
3851 #endif | |
7 | 3852 break; |
3853 } | |
3854 } | |
3855 } | |
3856 nobackup: | |
3857 close(fd); /* ignore errors for closing read file */ | |
3858 vim_free(copybuf); | |
3859 | |
3860 if (backup == NULL && errmsg == NULL) | |
3861 errmsg = (char_u *)_("E509: Cannot create backup file (add ! to override)"); | |
3862 /* ignore errors when forceit is TRUE */ | |
3863 if ((some_error || errmsg != NULL) && !forceit) | |
3864 { | |
3865 retval = FAIL; | |
3866 goto fail; | |
3867 } | |
3868 errmsg = NULL; | |
3869 } | |
3870 else | |
3871 { | |
3872 char_u *dirp; | |
3873 char_u *p; | |
3874 char_u *rootname; | |
3875 | |
3876 /* | |
3877 * Make a backup by renaming the original file. | |
3878 */ | |
3879 /* | |
3880 * If 'cpoptions' includes the "W" flag, we don't want to | |
3881 * overwrite a read-only file. But rename may be possible | |
3882 * anyway, thus we need an extra check here. | |
3883 */ | |
3884 if (file_readonly && vim_strchr(p_cpo, CPO_FWRITE) != NULL) | |
3885 { | |
3886 errnum = (char_u *)"E504: "; | |
3887 errmsg = (char_u *)_(err_readonly); | |
3888 goto fail; | |
3889 } | |
3890 | |
3891 /* | |
3892 * | |
3893 * Form the backup file name - change path/fo.o.h to | |
3894 * path/fo.o.h.bak Try all directories in 'backupdir', first one | |
3895 * that works is used. | |
3896 */ | |
3897 dirp = p_bdir; | |
3898 while (*dirp) | |
3899 { | |
3900 /* | |
3901 * Isolate one directory name and make the backup file name. | |
3902 */ | |
3903 (void)copy_option_part(&dirp, IObuff, IOSIZE, ","); | |
3904 rootname = get_file_in_dir(fname, IObuff); | |
3905 if (rootname == NULL) | |
3906 backup = NULL; | |
3907 else | |
3908 { | |
3909 backup = buf_modname( | |
3910 #ifdef SHORT_FNAME | |
3911 TRUE, | |
3912 #else | |
3913 (buf->b_p_sn || buf->b_shortname), | |
3914 #endif | |
3915 rootname, backup_ext, FALSE); | |
3916 vim_free(rootname); | |
3917 } | |
3918 | |
3919 if (backup != NULL) | |
3920 { | |
3921 /* | |
3922 * If we are not going to keep the backup file, don't | |
3923 * delete an existing one, try to use another name. | |
3924 * Change one character, just before the extension. | |
3925 */ | |
3926 if (!p_bk && mch_getperm(backup) >= 0) | |
3927 { | |
3928 p = backup + STRLEN(backup) - 1 - STRLEN(backup_ext); | |
3929 if (p < backup) /* empty file name ??? */ | |
3930 p = backup; | |
3931 *p = 'z'; | |
3932 while (*p > 'a' && mch_getperm(backup) >= 0) | |
3933 --*p; | |
3934 /* They all exist??? Must be something wrong! */ | |
3935 if (*p == 'a') | |
3936 { | |
3937 vim_free(backup); | |
3938 backup = NULL; | |
3939 } | |
3940 } | |
3941 } | |
3942 if (backup != NULL) | |
3943 { | |
3944 /* | |
531 | 3945 * Delete any existing backup and move the current version |
3946 * to the backup. For safety, we don't remove the backup | |
3947 * until the write has finished successfully. And if the | |
3948 * 'backup' option is set, leave it around. | |
7 | 3949 */ |
3950 /* | |
3951 * If the renaming of the original file to the backup file | |
3952 * works, quit here. | |
3953 */ | |
3954 if (vim_rename(fname, backup) == 0) | |
3955 break; | |
3956 | |
3957 vim_free(backup); /* don't do the rename below */ | |
3958 backup = NULL; | |
3959 } | |
3960 } | |
3961 if (backup == NULL && !forceit) | |
3962 { | |
3963 errmsg = (char_u *)_("E510: Can't make backup file (add ! to override)"); | |
3964 goto fail; | |
3965 } | |
3966 } | |
3967 } | |
3968 | |
3969 #if defined(UNIX) && !defined(ARCHIE) | |
3970 /* When using ":w!" and the file was read-only: make it writable */ | |
3971 if (forceit && perm >= 0 && !(perm & 0200) && st_old.st_uid == getuid() | |
3972 && vim_strchr(p_cpo, CPO_FWRITE) == NULL) | |
3973 { | |
3974 perm |= 0200; | |
3975 (void)mch_setperm(fname, perm); | |
3976 made_writable = TRUE; | |
3977 } | |
3978 #endif | |
3979 | |
819 | 3980 /* When using ":w!" and writing to the current file, 'readonly' makes no |
164 | 3981 * sense, reset it, unless 'Z' appears in 'cpoptions'. */ |
3982 if (forceit && overwriting && vim_strchr(p_cpo, CPO_KEEPRO) == NULL) | |
7 | 3983 { |
3984 buf->b_p_ro = FALSE; | |
3985 #ifdef FEAT_TITLE | |
3986 need_maketitle = TRUE; /* set window title later */ | |
3987 #endif | |
3988 #ifdef FEAT_WINDOWS | |
3989 status_redraw_all(); /* redraw status lines later */ | |
3990 #endif | |
3991 } | |
3992 | |
3993 if (end > buf->b_ml.ml_line_count) | |
3994 end = buf->b_ml.ml_line_count; | |
3995 if (buf->b_ml.ml_flags & ML_EMPTY) | |
3996 start = end + 1; | |
3997 | |
3998 /* | |
3999 * If the original file is being overwritten, there is a small chance that | |
4000 * we crash in the middle of writing. Therefore the file is preserved now. | |
4001 * This makes all block numbers positive so that recovery does not need | |
4002 * the original file. | |
4003 * Don't do this if there is a backup file and we are exiting. | |
4004 */ | |
39 | 4005 if (reset_changed && !newfile && overwriting |
7 | 4006 && !(exiting && backup != NULL)) |
4007 { | |
4008 ml_preserve(buf, FALSE); | |
4009 if (got_int) | |
4010 { | |
4011 errmsg = (char_u *)_(e_interr); | |
4012 goto restore_backup; | |
4013 } | |
4014 } | |
4015 | |
4016 #ifdef MACOS_CLASSIC /* TODO: Is it need for MACOS_X? (Dany) */ | |
4017 /* | |
4018 * Before risking to lose the original file verify if there's | |
4019 * a resource fork to preserve, and if cannot be done warn | |
4020 * the users. This happens when overwriting without backups. | |
4021 */ | |
4022 if (backup == NULL && overwriting && !append) | |
4023 if (mch_has_resource_fork(fname)) | |
4024 { | |
4025 errmsg = (char_u *)_("E460: The resource fork would be lost (add ! to override)"); | |
4026 goto restore_backup; | |
4027 } | |
4028 #endif | |
4029 | |
4030 #ifdef VMS | |
4031 vms_remove_version(fname); /* remove version */ | |
4032 #endif | |
1651 | 4033 /* Default: write the file directly. May write to a temp file for |
7 | 4034 * multi-byte conversion. */ |
4035 wfname = fname; | |
4036 | |
4037 #ifdef FEAT_MBYTE | |
4038 /* Check for forced 'fileencoding' from "++opt=val" argument. */ | |
4039 if (eap != NULL && eap->force_enc != 0) | |
4040 { | |
4041 fenc = eap->cmd + eap->force_enc; | |
4042 fenc = enc_canonize(fenc); | |
4043 fenc_tofree = fenc; | |
4044 } | |
4045 else | |
4046 fenc = buf->b_p_fenc; | |
4047 | |
4048 /* | |
1948 | 4049 * Check if the file needs to be converted. |
7 | 4050 */ |
1948 | 4051 converted = need_conversion(fenc); |
7 | 4052 |
4053 /* | |
4054 * Check if UTF-8 to UCS-2/4 or Latin1 conversion needs to be done. Or | |
4055 * Latin1 to Unicode conversion. This is handled in buf_write_bytes(). | |
4056 * Prepare the flags for it and allocate bw_conv_buf when needed. | |
4057 */ | |
4058 if (converted && (enc_utf8 || STRCMP(p_enc, "latin1") == 0)) | |
4059 { | |
4060 wb_flags = get_fio_flags(fenc); | |
4061 if (wb_flags & (FIO_UCS2 | FIO_UCS4 | FIO_UTF16 | FIO_UTF8)) | |
4062 { | |
4063 /* Need to allocate a buffer to translate into. */ | |
4064 if (wb_flags & (FIO_UCS2 | FIO_UTF16 | FIO_UTF8)) | |
4065 write_info.bw_conv_buflen = bufsize * 2; | |
4066 else /* FIO_UCS4 */ | |
4067 write_info.bw_conv_buflen = bufsize * 4; | |
4068 write_info.bw_conv_buf | |
4069 = lalloc((long_u)write_info.bw_conv_buflen, TRUE); | |
4070 if (write_info.bw_conv_buf == NULL) | |
4071 end = 0; | |
4072 } | |
4073 } | |
4074 | |
4075 # ifdef WIN3264 | |
4076 if (converted && wb_flags == 0 && (wb_flags = get_win_fio_flags(fenc)) != 0) | |
4077 { | |
4078 /* Convert UTF-8 -> UCS-2 and UCS-2 -> DBCS. Worst-case * 4: */ | |
4079 write_info.bw_conv_buflen = bufsize * 4; | |
4080 write_info.bw_conv_buf | |
4081 = lalloc((long_u)write_info.bw_conv_buflen, TRUE); | |
4082 if (write_info.bw_conv_buf == NULL) | |
4083 end = 0; | |
4084 } | |
4085 # endif | |
4086 | |
4087 # ifdef MACOS_X | |
4088 if (converted && wb_flags == 0 && (wb_flags = get_mac_fio_flags(fenc)) != 0) | |
4089 { | |
4090 write_info.bw_conv_buflen = bufsize * 3; | |
4091 write_info.bw_conv_buf | |
4092 = lalloc((long_u)write_info.bw_conv_buflen, TRUE); | |
4093 if (write_info.bw_conv_buf == NULL) | |
4094 end = 0; | |
4095 } | |
4096 # endif | |
4097 | |
4098 # if defined(FEAT_EVAL) || defined(USE_ICONV) | |
4099 if (converted && wb_flags == 0) | |
4100 { | |
4101 # ifdef USE_ICONV | |
4102 /* | |
4103 * Use iconv() conversion when conversion is needed and it's not done | |
4104 * internally. | |
4105 */ | |
4106 write_info.bw_iconv_fd = (iconv_t)my_iconv_open(fenc, | |
4107 enc_utf8 ? (char_u *)"utf-8" : p_enc); | |
4108 if (write_info.bw_iconv_fd != (iconv_t)-1) | |
4109 { | |
4110 /* We're going to use iconv(), allocate a buffer to convert in. */ | |
4111 write_info.bw_conv_buflen = bufsize * ICONV_MULT; | |
4112 write_info.bw_conv_buf | |
4113 = lalloc((long_u)write_info.bw_conv_buflen, TRUE); | |
4114 if (write_info.bw_conv_buf == NULL) | |
4115 end = 0; | |
4116 write_info.bw_first = TRUE; | |
4117 } | |
4118 # ifdef FEAT_EVAL | |
4119 else | |
4120 # endif | |
4121 # endif | |
4122 | |
4123 # ifdef FEAT_EVAL | |
4124 /* | |
4125 * When the file needs to be converted with 'charconvert' after | |
4126 * writing, write to a temp file instead and let the conversion | |
4127 * overwrite the original file. | |
4128 */ | |
4129 if (*p_ccv != NUL) | |
4130 { | |
4131 wfname = vim_tempname('w'); | |
4132 if (wfname == NULL) /* Can't write without a tempfile! */ | |
4133 { | |
4134 errmsg = (char_u *)_("E214: Can't find temp file for writing"); | |
4135 goto restore_backup; | |
4136 } | |
4137 } | |
4138 # endif | |
4139 } | |
4140 # endif | |
4141 if (converted && wb_flags == 0 | |
4142 # ifdef USE_ICONV | |
4143 && write_info.bw_iconv_fd == (iconv_t)-1 | |
4144 # endif | |
4145 # ifdef FEAT_EVAL | |
4146 && wfname == fname | |
4147 # endif | |
4148 ) | |
4149 { | |
4150 if (!forceit) | |
4151 { | |
4152 errmsg = (char_u *)_("E213: Cannot convert (add ! to write without conversion)"); | |
4153 goto restore_backup; | |
4154 } | |
4155 notconverted = TRUE; | |
4156 } | |
4157 #endif | |
4158 | |
4159 /* | |
4160 * Open the file "wfname" for writing. | |
4161 * We may try to open the file twice: If we can't write to the | |
4162 * file and forceit is TRUE we delete the existing file and try to create | |
4163 * a new one. If this still fails we may have lost the original file! | |
4164 * (this may happen when the user reached his quotum for number of files). | |
4165 * Appending will fail if the file does not exist and forceit is FALSE. | |
4166 */ | |
4167 while ((fd = mch_open((char *)wfname, O_WRONLY | O_EXTRA | (append | |
4168 ? (forceit ? (O_APPEND | O_CREAT) : O_APPEND) | |
4169 : (O_CREAT | O_TRUNC)) | |
216 | 4170 , perm < 0 ? 0666 : (perm & 0777))) < 0) |
7 | 4171 { |
4172 /* | |
4173 * A forced write will try to create a new file if the old one is | |
4174 * still readonly. This may also happen when the directory is | |
4175 * read-only. In that case the mch_remove() will fail. | |
4176 */ | |
4177 if (errmsg == NULL) | |
4178 { | |
4179 #ifdef UNIX | |
4180 struct stat st; | |
4181 | |
4182 /* Don't delete the file when it's a hard or symbolic link. */ | |
4183 if ((!newfile && st_old.st_nlink > 1) | |
4184 || (mch_lstat((char *)fname, &st) == 0 | |
4185 && (st.st_dev != st_old.st_dev | |
4186 || st.st_ino != st_old.st_ino))) | |
4187 errmsg = (char_u *)_("E166: Can't open linked file for writing"); | |
4188 else | |
4189 #endif | |
4190 { | |
4191 errmsg = (char_u *)_("E212: Can't open file for writing"); | |
4192 if (forceit && vim_strchr(p_cpo, CPO_FWRITE) == NULL | |
4193 && perm >= 0) | |
4194 { | |
4195 #ifdef UNIX | |
4196 /* we write to the file, thus it should be marked | |
4197 writable after all */ | |
4198 if (!(perm & 0200)) | |
4199 made_writable = TRUE; | |
4200 perm |= 0200; | |
4201 if (st_old.st_uid != getuid() || st_old.st_gid != getgid()) | |
4202 perm &= 0777; | |
4203 #endif | |
4204 if (!append) /* don't remove when appending */ | |
4205 mch_remove(wfname); | |
4206 continue; | |
4207 } | |
4208 } | |
4209 } | |
4210 | |
4211 restore_backup: | |
4212 { | |
4213 struct stat st; | |
4214 | |
4215 /* | |
4216 * If we failed to open the file, we don't need a backup. Throw it | |
4217 * away. If we moved or removed the original file try to put the | |
4218 * backup in its place. | |
4219 */ | |
4220 if (backup != NULL && wfname == fname) | |
4221 { | |
4222 if (backup_copy) | |
4223 { | |
4224 /* | |
4225 * There is a small chance that we removed the original, | |
4226 * try to move the copy in its place. | |
4227 * This may not work if the vim_rename() fails. | |
4228 * In that case we leave the copy around. | |
4229 */ | |
4230 /* If file does not exist, put the copy in its place */ | |
4231 if (mch_stat((char *)fname, &st) < 0) | |
4232 vim_rename(backup, fname); | |
4233 /* if original file does exist throw away the copy */ | |
4234 if (mch_stat((char *)fname, &st) >= 0) | |
4235 mch_remove(backup); | |
4236 } | |
4237 else | |
4238 { | |
4239 /* try to put the original file back */ | |
4240 vim_rename(backup, fname); | |
4241 } | |
4242 } | |
4243 | |
4244 /* if original file no longer exists give an extra warning */ | |
4245 if (!newfile && mch_stat((char *)fname, &st) < 0) | |
4246 end = 0; | |
4247 } | |
4248 | |
4249 #ifdef FEAT_MBYTE | |
4250 if (wfname != fname) | |
4251 vim_free(wfname); | |
4252 #endif | |
4253 goto fail; | |
4254 } | |
4255 errmsg = NULL; | |
4256 | |
4257 #if defined(MACOS_CLASSIC) || defined(WIN3264) | |
4258 /* TODO: Is it need for MACOS_X? (Dany) */ | |
4259 /* | |
4260 * On macintosh copy the original files attributes (i.e. the backup) | |
1201 | 4261 * This is done in order to preserve the resource fork and the |
4262 * Finder attribute (label, comments, custom icons, file creator) | |
7 | 4263 */ |
4264 if (backup != NULL && overwriting && !append) | |
4265 { | |
4266 if (backup_copy) | |
4267 (void)mch_copy_file_attribute(wfname, backup); | |
4268 else | |
4269 (void)mch_copy_file_attribute(backup, wfname); | |
4270 } | |
4271 | |
4272 if (!overwriting && !append) | |
4273 { | |
4274 if (buf->b_ffname != NULL) | |
4275 (void)mch_copy_file_attribute(buf->b_ffname, wfname); | |
1201 | 4276 /* Should copy resource fork */ |
7 | 4277 } |
4278 #endif | |
4279 | |
4280 write_info.bw_fd = fd; | |
4281 | |
4282 #ifdef FEAT_CRYPT | |
4283 if (*buf->b_p_key && !filtering) | |
4284 { | |
2180
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4285 char_u header[CRYPT_MAGIC_LEN + CRYPT_SEED_LEN_MAX + 2]; |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4286 int seed_len = crypt_seed_len[buf->b_p_cm]; |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4287 |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4288 use_crypt_method = buf->b_p_cm; /* select pkzip or blowfish */ |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4289 |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4290 memset(header, 0, sizeof(header)); |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4291 vim_strncpy(header, (char_u *)crypt_magic[use_crypt_method], |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4292 CRYPT_MAGIC_LEN); |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4293 |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4294 if (buf->b_p_cm == 0) |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4295 crypt_init_keys(buf->b_p_key); |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4296 else |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4297 { |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4298 /* Using blowfish, add seed. */ |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4299 sha2_seed(header + CRYPT_MAGIC_LEN, seed_len); /* create iv */ |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4300 bf_ofb_init(header + CRYPT_MAGIC_LEN, seed_len); |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4301 bf_key_init(buf->b_p_key); |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4302 } |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4303 |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4304 /* Write magic number, so that Vim knows that this file is |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4305 * encrypted when reading it again. This also undergoes utf-8 to |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4306 * ucs-2/4 conversion when needed. */ |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4307 write_info.bw_buf = (char_u *)header; |
f60a0c9cbe6c
Add the blowfish encryption patch from Mohsin Ahmed. Needs more work.
Bram Moolenaar <bram@vim.org>
parents:
2147
diff
changeset
|
4308 write_info.bw_len = CRYPT_MAGIC_LEN + seed_len; |
7 | 4309 write_info.bw_flags = FIO_NOCONVERT; |
4310 if (buf_write_bytes(&write_info) == FAIL) | |
4311 end = 0; | |
4312 wb_flags |= FIO_ENCRYPTED; | |
4313 } | |
4314 #endif | |
4315 | |
4316 write_info.bw_buf = buffer; | |
4317 nchars = 0; | |
4318 | |
4319 /* use "++bin", "++nobin" or 'binary' */ | |
4320 if (eap != NULL && eap->force_bin != 0) | |
4321 write_bin = (eap->force_bin == FORCE_BIN); | |
4322 else | |
4323 write_bin = buf->b_p_bin; | |
4324 | |
4325 #ifdef FEAT_MBYTE | |
4326 /* | |
4327 * The BOM is written just after the encryption magic number. | |
24 | 4328 * Skip it when appending and the file already existed, the BOM only makes |
4329 * sense at the start of the file. | |
7 | 4330 */ |
24 | 4331 if (buf->b_p_bomb && !write_bin && (!append || perm < 0)) |
7 | 4332 { |
4333 write_info.bw_len = make_bom(buffer, fenc); | |
4334 if (write_info.bw_len > 0) | |
4335 { | |
4336 /* don't convert, do encryption */ | |
4337 write_info.bw_flags = FIO_NOCONVERT | wb_flags; | |
4338 if (buf_write_bytes(&write_info) == FAIL) | |
4339 end = 0; | |
4340 else | |
4341 nchars += write_info.bw_len; | |
4342 } | |
4343 } | |
1947 | 4344 write_info.bw_start_lnum = start; |
7 | 4345 #endif |
4346 | |
4347 write_info.bw_len = bufsize; | |
4348 #ifdef HAS_BW_FLAGS | |
4349 write_info.bw_flags = wb_flags; | |
4350 #endif | |
4351 fileformat = get_fileformat_force(buf, eap); | |
4352 s = buffer; | |
4353 len = 0; | |
4354 for (lnum = start; lnum <= end; ++lnum) | |
4355 { | |
4356 /* | |
4357 * The next while loop is done once for each character written. | |
4358 * Keep it fast! | |
4359 */ | |
4360 ptr = ml_get_buf(buf, lnum, FALSE) - 1; | |
4361 while ((c = *++ptr) != NUL) | |
4362 { | |
4363 if (c == NL) | |
4364 *s = NUL; /* replace newlines with NULs */ | |
4365 else if (c == CAR && fileformat == EOL_MAC) | |
4366 *s = NL; /* Mac: replace CRs with NLs */ | |
4367 else | |
4368 *s = c; | |
4369 ++s; | |
4370 if (++len != bufsize) | |
4371 continue; | |
4372 if (buf_write_bytes(&write_info) == FAIL) | |
4373 { | |
4374 end = 0; /* write error: break loop */ | |
4375 break; | |
4376 } | |
4377 nchars += bufsize; | |
4378 s = buffer; | |
4379 len = 0; | |
1947 | 4380 #ifdef FEAT_MBYTE |
4381 write_info.bw_start_lnum = lnum; | |
4382 #endif | |
7 | 4383 } |
4384 /* write failed or last line has no EOL: stop here */ | |
4385 if (end == 0 | |
4386 || (lnum == end | |
4387 && write_bin | |
4388 && (lnum == write_no_eol_lnum | |
4389 || (lnum == buf->b_ml.ml_line_count && !buf->b_p_eol)))) | |
4390 { | |
4391 ++lnum; /* written the line, count it */ | |
4392 no_eol = TRUE; | |
4393 break; | |
4394 } | |
4395 if (fileformat == EOL_UNIX) | |
4396 *s++ = NL; | |
4397 else | |
4398 { | |
4399 *s++ = CAR; /* EOL_MAC or EOL_DOS: write CR */ | |
4400 if (fileformat == EOL_DOS) /* write CR-NL */ | |
4401 { | |
4402 if (++len == bufsize) | |
4403 { | |
4404 if (buf_write_bytes(&write_info) == FAIL) | |
4405 { | |
4406 end = 0; /* write error: break loop */ | |
4407 break; | |
4408 } | |
4409 nchars += bufsize; | |
4410 s = buffer; | |
4411 len = 0; | |
4412 } | |
4413 *s++ = NL; | |
4414 } | |
4415 } | |
4416 if (++len == bufsize && end) | |
4417 { | |
4418 if (buf_write_bytes(&write_info) == FAIL) | |
4419 { | |
4420 end = 0; /* write error: break loop */ | |
4421 break; | |
4422 } | |
4423 nchars += bufsize; | |
4424 s = buffer; | |
4425 len = 0; | |
4426 | |
4427 ui_breakcheck(); | |
4428 if (got_int) | |
4429 { | |
4430 end = 0; /* Interrupted, break loop */ | |
4431 break; | |
4432 } | |
4433 } | |
4434 #ifdef VMS | |
4435 /* | |
4436 * On VMS there is a problem: newlines get added when writing blocks | |
4437 * at a time. Fix it by writing a line at a time. | |
4438 * This is much slower! | |
22 | 4439 * Explanation: VAX/DECC RTL insists that records in some RMS |
4440 * structures end with a newline (carriage return) character, and if | |
4441 * they don't it adds one. | |
4442 * With other RMS structures it works perfect without this fix. | |
7 | 4443 */ |
1431 | 4444 if (buf->b_fab_rfm == FAB$C_VFC |
4445 || ((buf->b_fab_rat & (FAB$M_FTN | FAB$M_CR)) != 0)) | |
22 | 4446 { |
4447 int b2write; | |
4448 | |
4449 buf->b_fab_mrs = (buf->b_fab_mrs == 0 | |
4450 ? MIN(4096, bufsize) | |
4451 : MIN(buf->b_fab_mrs, bufsize)); | |
4452 | |
4453 b2write = len; | |
4454 while (b2write > 0) | |
7 | 4455 { |
22 | 4456 write_info.bw_len = MIN(b2write, buf->b_fab_mrs); |
4457 if (buf_write_bytes(&write_info) == FAIL) | |
4458 { | |
4459 end = 0; | |
4460 break; | |
4461 } | |
4462 b2write -= MIN(b2write, buf->b_fab_mrs); | |
7 | 4463 } |
4464 write_info.bw_len = bufsize; | |
4465 nchars += len; | |
4466 s = buffer; | |
4467 len = 0; | |
4468 } | |
4469 #endif | |
4470 } | |
4471 if (len > 0 && end > 0) | |
4472 { | |
4473 write_info.bw_len = len; | |
4474 if (buf_write_bytes(&write_info) == FAIL) | |
4475 end = 0; /* write error */ | |
4476 nchars += len; | |
4477 } | |
4478 | |
4479 #if defined(UNIX) && defined(HAVE_FSYNC) | |
4480 /* On many journalling file systems there is a bug that causes both the | |
4481 * original and the backup file to be lost when halting the system right | |
4482 * after writing the file. That's because only the meta-data is | |
4483 * journalled. Syncing the file slows down the system, but assures it has | |
10 | 4484 * been written to disk and we don't lose it. |
4485 * For a device do try the fsync() but don't complain if it does not work | |
36 | 4486 * (could be a pipe). |
4487 * If the 'fsync' option is FALSE, don't fsync(). Useful for laptops. */ | |
4488 if (p_fs && fsync(fd) != 0 && !device) | |
7 | 4489 { |
4490 errmsg = (char_u *)_("E667: Fsync failed"); | |
4491 end = 0; | |
4492 } | |
4493 #endif | |
4494 | |
1583 | 4495 #ifdef HAVE_SELINUX |
4496 /* Probably need to set the security context. */ | |
4497 if (!backup_copy) | |
4498 mch_copy_sec(backup, wfname); | |
4499 #endif | |
4500 | |
557 | 4501 #ifdef UNIX |
4502 /* When creating a new file, set its owner/group to that of the original | |
4503 * file. Get the new device and inode number. */ | |
4504 if (backup != NULL && !backup_copy) | |
4505 { | |
4506 # ifdef HAVE_FCHOWN | |
4507 struct stat st; | |
4508 | |
4509 /* don't change the owner when it's already OK, some systems remove | |
4510 * permission or ACL stuff */ | |
4511 if (mch_stat((char *)wfname, &st) < 0 | |
4512 || st.st_uid != st_old.st_uid | |
4513 || st.st_gid != st_old.st_gid) | |
4514 { | |
1757 | 4515 ignored = fchown(fd, st_old.st_uid, st_old.st_gid); |
557 | 4516 if (perm >= 0) /* set permission again, may have changed */ |
4517 (void)mch_setperm(wfname, perm); | |
4518 } | |
4519 # endif | |
4520 buf_setino(buf); | |
4521 } | |
1873 | 4522 else if (!buf->b_dev_valid) |
617 | 4523 /* Set the inode when creating a new file. */ |
4524 buf_setino(buf); | |
557 | 4525 #endif |
4526 | |
7 | 4527 if (close(fd) != 0) |
4528 { | |
4529 errmsg = (char_u *)_("E512: Close failed"); | |
4530 end = 0; | |
4531 } | |
4532 | |
4533 #ifdef UNIX | |
4534 if (made_writable) | |
4535 perm &= ~0200; /* reset 'w' bit for security reasons */ | |
4536 #endif | |
4537 if (perm >= 0) /* set perm. of new file same as old file */ | |
4538 (void)mch_setperm(wfname, perm); | |
4539 #ifdef RISCOS | |
4540 if (!append && !filtering) | |
4541 /* Set the filetype after writing the file. */ | |
4542 mch_set_filetype(wfname, buf->b_p_oft); | |
4543 #endif | |
4544 #ifdef HAVE_ACL | |
4545 /* Probably need to set the ACL before changing the user (can't set the | |
4546 * ACL on a file the user doesn't own). */ | |
4547 if (!backup_copy) | |
4548 mch_set_acl(wfname, acl); | |
4549 #endif | |
4550 | |
4551 | |
4552 #if defined(FEAT_MBYTE) && defined(FEAT_EVAL) | |
4553 if (wfname != fname) | |
4554 { | |
4555 /* | |
4556 * The file was written to a temp file, now it needs to be converted | |
4557 * with 'charconvert' to (overwrite) the output file. | |
4558 */ | |
4559 if (end != 0) | |
4560 { | |
4561 if (eval_charconvert(enc_utf8 ? (char_u *)"utf-8" : p_enc, fenc, | |
4562 wfname, fname) == FAIL) | |
4563 { | |
4564 write_info.bw_conv_error = TRUE; | |
4565 end = 0; | |
4566 } | |
4567 } | |
4568 mch_remove(wfname); | |
4569 vim_free(wfname); | |
4570 } | |
4571 #endif | |
4572 | |
4573 if (end == 0) | |
4574 { | |
4575 if (errmsg == NULL) | |
4576 { | |
4577 #ifdef FEAT_MBYTE | |
4578 if (write_info.bw_conv_error) | |
1947 | 4579 { |
4580 if (write_info.bw_conv_error_lnum == 0) | |
4581 errmsg = (char_u *)_("E513: write error, conversion failed (make 'fenc' empty to override)"); | |
4582 else | |
4583 { | |
4584 errmsg_allocated = TRUE; | |
4585 errmsg = alloc(300); | |
4586 vim_snprintf((char *)errmsg, 300, _("E513: write error, conversion failed in line %ld (make 'fenc' empty to override)"), | |
4587 (long)write_info.bw_conv_error_lnum); | |
4588 } | |
4589 } | |
7 | 4590 else |
4591 #endif | |
4592 if (got_int) | |
4593 errmsg = (char_u *)_(e_interr); | |
4594 else | |
4595 errmsg = (char_u *)_("E514: write error (file system full?)"); | |
4596 } | |
4597 | |
4598 /* | |
4599 * If we have a backup file, try to put it in place of the new file, | |
1698 | 4600 * because the new file is probably corrupt. This avoids losing the |
7 | 4601 * original file when trying to make a backup when writing the file a |
4602 * second time. | |
4603 * When "backup_copy" is set we need to copy the backup over the new | |
4604 * file. Otherwise rename the backup file. | |
4605 * If this is OK, don't give the extra warning message. | |
4606 */ | |
4607 if (backup != NULL) | |
4608 { | |
4609 if (backup_copy) | |
4610 { | |
4611 /* This may take a while, if we were interrupted let the user | |
4612 * know we got the message. */ | |
4613 if (got_int) | |
4614 { | |
4615 MSG(_(e_interr)); | |
4616 out_flush(); | |
4617 } | |
4618 if ((fd = mch_open((char *)backup, O_RDONLY | O_EXTRA, 0)) >= 0) | |
4619 { | |
4620 if ((write_info.bw_fd = mch_open((char *)fname, | |
194 | 4621 O_WRONLY | O_CREAT | O_TRUNC | O_EXTRA, |
4622 perm & 0777)) >= 0) | |
7 | 4623 { |
4624 /* copy the file. */ | |
4625 write_info.bw_buf = smallbuf; | |
4626 #ifdef HAS_BW_FLAGS | |
4627 write_info.bw_flags = FIO_NOCONVERT; | |
4628 #endif | |
4629 while ((write_info.bw_len = vim_read(fd, smallbuf, | |
4630 SMBUFSIZE)) > 0) | |
4631 if (buf_write_bytes(&write_info) == FAIL) | |
4632 break; | |
4633 | |
4634 if (close(write_info.bw_fd) >= 0 | |
4635 && write_info.bw_len == 0) | |
4636 end = 1; /* success */ | |
4637 } | |
4638 close(fd); /* ignore errors for closing read file */ | |
4639 } | |
4640 } | |
4641 else | |
4642 { | |
4643 if (vim_rename(backup, fname) == 0) | |
4644 end = 1; | |
4645 } | |
4646 } | |
4647 goto fail; | |
4648 } | |
4649 | |
4650 lnum -= start; /* compute number of written lines */ | |
4651 --no_wait_return; /* may wait for return now */ | |
4652 | |
4653 #if !(defined(UNIX) || defined(VMS)) | |
4654 fname = sfname; /* use shortname now, for the messages */ | |
4655 #endif | |
4656 if (!filtering) | |
4657 { | |
4658 msg_add_fname(buf, fname); /* put fname in IObuff with quotes */ | |
4659 c = FALSE; | |
4660 #ifdef FEAT_MBYTE | |
4661 if (write_info.bw_conv_error) | |
4662 { | |
4663 STRCAT(IObuff, _(" CONVERSION ERROR")); | |
4664 c = TRUE; | |
1947 | 4665 if (write_info.bw_conv_error_lnum != 0) |
4666 { | |
1957 | 4667 size_t l = STRLEN(IObuff); |
1947 | 4668 vim_snprintf((char *)IObuff + l, IOSIZE - l, _(" in line %ld;"), |
4669 (long)write_info.bw_conv_error_lnum); | |
4670 } | |
7 | 4671 } |
4672 else if (notconverted) | |
4673 { | |
4674 STRCAT(IObuff, _("[NOT converted]")); | |
4675 c = TRUE; | |
4676 } | |
4677 else if (converted) | |
4678 { | |
4679 STRCAT(IObuff, _("[converted]")); | |
4680 c = TRUE; | |
4681 } | |
4682 #endif | |
4683 if (device) | |
4684 { | |
4685 STRCAT(IObuff, _("[Device]")); | |
4686 c = TRUE; | |
4687 } | |
4688 else if (newfile) | |
4689 { | |
4690 STRCAT(IObuff, shortmess(SHM_NEW) ? _("[New]") : _("[New File]")); | |
4691 c = TRUE; | |
4692 } | |
4693 if (no_eol) | |
4694 { | |
4695 msg_add_eol(); | |
4696 c = TRUE; | |
4697 } | |
4698 /* may add [unix/dos/mac] */ | |
4699 if (msg_add_fileformat(fileformat)) | |
4700 c = TRUE; | |
4701 #ifdef FEAT_CRYPT | |
4702 if (wb_flags & FIO_ENCRYPTED) | |
4703 { | |
4704 STRCAT(IObuff, _("[crypted]")); | |
4705 c = TRUE; | |
4706 } | |
4707 #endif | |
4708 msg_add_lines(c, (long)lnum, nchars); /* add line/char count */ | |
4709 if (!shortmess(SHM_WRITE)) | |
4710 { | |
4711 if (append) | |
4712 STRCAT(IObuff, shortmess(SHM_WRI) ? _(" [a]") : _(" appended")); | |
4713 else | |
4714 STRCAT(IObuff, shortmess(SHM_WRI) ? _(" [w]") : _(" written")); | |
4715 } | |
4716 | |
679 | 4717 set_keep_msg(msg_trunc_attr(IObuff, FALSE, 0), 0); |
7 | 4718 } |
4719 | |
39 | 4720 /* When written everything correctly: reset 'modified'. Unless not |
4721 * writing to the original file and '+' is not in 'cpoptions'. */ | |
589 | 4722 if (reset_changed && whole && !append |
7 | 4723 #ifdef FEAT_MBYTE |
4724 && !write_info.bw_conv_error | |
4725 #endif | |
39 | 4726 && (overwriting || vim_strchr(p_cpo, CPO_PLUS) != NULL) |
4727 ) | |
7 | 4728 { |
4729 unchanged(buf, TRUE); | |
4730 u_unchanged(buf); | |
4731 } | |
4732 | |
4733 /* | |
4734 * If written to the current file, update the timestamp of the swap file | |
4735 * and reset the BF_WRITE_MASK flags. Also sets buf->b_mtime. | |
4736 */ | |
4737 if (overwriting) | |
4738 { | |
4739 ml_timestamp(buf); | |
589 | 4740 if (append) |
4741 buf->b_flags &= ~BF_NEW; | |
4742 else | |
4743 buf->b_flags &= ~BF_WRITE_MASK; | |
7 | 4744 } |
4745 | |
4746 /* | |
4747 * If we kept a backup until now, and we are in patch mode, then we make | |
4748 * the backup file our 'original' file. | |
4749 */ | |
4750 if (*p_pm && dobackup) | |
4751 { | |
4752 char *org = (char *)buf_modname( | |
4753 #ifdef SHORT_FNAME | |
4754 TRUE, | |
4755 #else | |
4756 (buf->b_p_sn || buf->b_shortname), | |
4757 #endif | |
4758 fname, p_pm, FALSE); | |
4759 | |
4760 if (backup != NULL) | |
4761 { | |
4762 struct stat st; | |
4763 | |
4764 /* | |
4765 * If the original file does not exist yet | |
4766 * the current backup file becomes the original file | |
4767 */ | |
4768 if (org == NULL) | |
4769 EMSG(_("E205: Patchmode: can't save original file")); | |
4770 else if (mch_stat(org, &st) < 0) | |
4771 { | |
4772 vim_rename(backup, (char_u *)org); | |
4773 vim_free(backup); /* don't delete the file */ | |
4774 backup = NULL; | |
4775 #ifdef UNIX | |
4776 set_file_time((char_u *)org, st_old.st_atime, st_old.st_mtime); | |
4777 #endif | |
4778 } | |
4779 } | |
4780 /* | |
4781 * If there is no backup file, remember that a (new) file was | |
4782 * created. | |
4783 */ | |
4784 else | |
4785 { | |
4786 int empty_fd; | |
4787 | |
4788 if (org == NULL | |
557 | 4789 || (empty_fd = mch_open(org, |
4790 O_CREAT | O_EXTRA | O_EXCL | O_NOFOLLOW, | |
216 | 4791 perm < 0 ? 0666 : (perm & 0777))) < 0) |
7 | 4792 EMSG(_("E206: patchmode: can't touch empty original file")); |
4793 else | |
4794 close(empty_fd); | |
4795 } | |
4796 if (org != NULL) | |
4797 { | |
4798 mch_setperm((char_u *)org, mch_getperm(fname) & 0777); | |
4799 vim_free(org); | |
4800 } | |
4801 } | |
4802 | |
4803 /* | |
4804 * Remove the backup unless 'backup' option is set | |
4805 */ | |
4806 if (!p_bk && backup != NULL && mch_remove(backup) != 0) | |
4807 EMSG(_("E207: Can't delete backup file")); | |
4808 | |
4809 #ifdef FEAT_SUN_WORKSHOP | |
4810 if (usingSunWorkShop) | |
4811 workshop_file_saved((char *) ffname); | |
4812 #endif | |
4813 | |
4814 goto nofail; | |
4815 | |
4816 /* | |
4817 * Finish up. We get here either after failure or success. | |
4818 */ | |
4819 fail: | |
4820 --no_wait_return; /* may wait for return now */ | |
4821 nofail: | |
4822 | |
4823 /* Done saving, we accept changed buffer warnings again */ | |
4824 buf->b_saving = FALSE; | |
4825 | |
4826 vim_free(backup); | |
4827 if (buffer != smallbuf) | |
4828 vim_free(buffer); | |
4829 #ifdef FEAT_MBYTE | |
4830 vim_free(fenc_tofree); | |
4831 vim_free(write_info.bw_conv_buf); | |
4832 # ifdef USE_ICONV | |
4833 if (write_info.bw_iconv_fd != (iconv_t)-1) | |
4834 { | |
4835 iconv_close(write_info.bw_iconv_fd); | |
4836 write_info.bw_iconv_fd = (iconv_t)-1; | |
4837 } | |
4838 # endif | |
4839 #endif | |
4840 #ifdef HAVE_ACL | |
4841 mch_free_acl(acl); | |
4842 #endif | |
4843 | |
4844 if (errmsg != NULL) | |
4845 { | |
835 | 4846 int numlen = errnum != NULL ? (int)STRLEN(errnum) : 0; |
7 | 4847 |
4848 attr = hl_attr(HLF_E); /* set highlight for error messages */ | |
4849 msg_add_fname(buf, | |
4850 #ifndef UNIX | |
4851 sfname | |
4852 #else | |
4853 fname | |
4854 #endif | |
4855 ); /* put file name in IObuff with quotes */ | |
4856 if (STRLEN(IObuff) + STRLEN(errmsg) + numlen >= IOSIZE) | |
4857 IObuff[IOSIZE - STRLEN(errmsg) - numlen - 1] = NUL; | |
4858 /* If the error message has the form "is ...", put the error number in | |
4859 * front of the file name. */ | |
4860 if (errnum != NULL) | |
4861 { | |
1620 | 4862 STRMOVE(IObuff + numlen, IObuff); |
7 | 4863 mch_memmove(IObuff, errnum, (size_t)numlen); |
4864 } | |
4865 STRCAT(IObuff, errmsg); | |
4866 emsg(IObuff); | |
1947 | 4867 if (errmsg_allocated) |
4868 vim_free(errmsg); | |
7 | 4869 |
4870 retval = FAIL; | |
4871 if (end == 0) | |
4872 { | |
4873 MSG_PUTS_ATTR(_("\nWARNING: Original file may be lost or damaged\n"), | |
4874 attr | MSG_HIST); | |
4875 MSG_PUTS_ATTR(_("don't quit the editor until the file is successfully written!"), | |
4876 attr | MSG_HIST); | |
4877 | |
4878 /* Update the timestamp to avoid an "overwrite changed file" | |
4879 * prompt when writing again. */ | |
4880 if (mch_stat((char *)fname, &st_old) >= 0) | |
4881 { | |
4882 buf_store_time(buf, &st_old, fname); | |
4883 buf->b_mtime_read = buf->b_mtime; | |
4884 } | |
4885 } | |
4886 } | |
4887 msg_scroll = msg_save; | |
4888 | |
4889 #ifdef FEAT_AUTOCMD | |
4890 #ifdef FEAT_EVAL | |
4891 if (!should_abort(retval)) | |
4892 #else | |
4893 if (!got_int) | |
4894 #endif | |
4895 { | |
4896 aco_save_T aco; | |
4897 | |
4898 write_no_eol_lnum = 0; /* in case it was set by the previous read */ | |
4899 | |
4900 /* | |
4901 * Apply POST autocommands. | |
4902 * Careful: The autocommands may call buf_write() recursively! | |
4903 */ | |
4904 aucmd_prepbuf(&aco, buf); | |
4905 | |
4906 if (append) | |
4907 apply_autocmds_exarg(EVENT_FILEAPPENDPOST, fname, fname, | |
4908 FALSE, curbuf, eap); | |
4909 else if (filtering) | |
4910 apply_autocmds_exarg(EVENT_FILTERWRITEPOST, NULL, fname, | |
4911 FALSE, curbuf, eap); | |
4912 else if (reset_changed && whole) | |
4913 apply_autocmds_exarg(EVENT_BUFWRITEPOST, fname, fname, | |
4914 FALSE, curbuf, eap); | |
4915 else | |
4916 apply_autocmds_exarg(EVENT_FILEWRITEPOST, fname, fname, | |
4917 FALSE, curbuf, eap); | |
4918 | |
4919 /* restore curwin/curbuf and a few other things */ | |
4920 aucmd_restbuf(&aco); | |
4921 | |
4922 #ifdef FEAT_EVAL | |
4923 if (aborting()) /* autocmds may abort script processing */ | |
4924 retval = FALSE; | |
4925 #endif | |
4926 } | |
4927 #endif | |
4928 | |
4929 got_int |= prev_got_int; | |
4930 | |
4931 #ifdef MACOS_CLASSIC /* TODO: Is it need for MACOS_X? (Dany) */ | |
4932 /* Update machine specific information. */ | |
4933 mch_post_buffer_write(buf); | |
4934 #endif | |
4935 return retval; | |
4936 } | |
4937 | |
4938 /* | |
633 | 4939 * Set the name of the current buffer. Use when the buffer doesn't have a |
4940 * name and a ":r" or ":w" command with a file name is used. | |
4941 */ | |
4942 static int | |
4943 set_rw_fname(fname, sfname) | |
4944 char_u *fname; | |
4945 char_u *sfname; | |
4946 { | |
4947 #ifdef FEAT_AUTOCMD | |
1905 | 4948 buf_T *buf = curbuf; |
4949 | |
633 | 4950 /* It's like the unnamed buffer is deleted.... */ |
4951 if (curbuf->b_p_bl) | |
4952 apply_autocmds(EVENT_BUFDELETE, NULL, NULL, FALSE, curbuf); | |
4953 apply_autocmds(EVENT_BUFWIPEOUT, NULL, NULL, FALSE, curbuf); | |
4954 # ifdef FEAT_EVAL | |
4955 if (aborting()) /* autocmds may abort script processing */ | |
4956 return FAIL; | |
4957 # endif | |
1905 | 4958 if (curbuf != buf) |
4959 { | |
4960 /* We are in another buffer now, don't do the renaming. */ | |
4961 EMSG(_(e_auchangedbuf)); | |
4962 return FAIL; | |
4963 } | |
633 | 4964 #endif |
4965 | |
4966 if (setfname(curbuf, fname, sfname, FALSE) == OK) | |
4967 curbuf->b_flags |= BF_NOTEDITED; | |
4968 | |
4969 #ifdef FEAT_AUTOCMD | |
4970 /* ....and a new named one is created */ | |
4971 apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, curbuf); | |
4972 if (curbuf->b_p_bl) | |
4973 apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, curbuf); | |
4974 # ifdef FEAT_EVAL | |
4975 if (aborting()) /* autocmds may abort script processing */ | |
4976 return FAIL; | |
4977 # endif | |
4978 | |
4979 /* Do filetype detection now if 'filetype' is empty. */ | |
4980 if (*curbuf->b_p_ft == NUL) | |
4981 { | |
819 | 4982 if (au_has_group((char_u *)"filetypedetect")) |
676 | 4983 (void)do_doautocmd((char_u *)"filetypedetect BufRead", FALSE); |
717 | 4984 do_modelines(0); |
633 | 4985 } |
4986 #endif | |
4987 | |
4988 return OK; | |
4989 } | |
4990 | |
4991 /* | |
7 | 4992 * Put file name into IObuff with quotes. |
4993 */ | |
33 | 4994 void |
7 | 4995 msg_add_fname(buf, fname) |
4996 buf_T *buf; | |
4997 char_u *fname; | |
4998 { | |
4999 if (fname == NULL) | |
5000 fname = (char_u *)"-stdin-"; | |
5001 home_replace(buf, fname, IObuff + 1, IOSIZE - 4, TRUE); | |
5002 IObuff[0] = '"'; | |
5003 STRCAT(IObuff, "\" "); | |
5004 } | |
5005 | |
5006 /* | |
5007 * Append message for text mode to IObuff. | |
5008 * Return TRUE if something appended. | |
5009 */ | |
5010 static int | |
5011 msg_add_fileformat(eol_type) | |
5012 int eol_type; | |
5013 { | |
5014 #ifndef USE_CRNL | |
5015 if (eol_type == EOL_DOS) | |
5016 { | |
5017 STRCAT(IObuff, shortmess(SHM_TEXT) ? _("[dos]") : _("[dos format]")); | |
5018 return TRUE; | |
5019 } | |
5020 #endif | |
5021 #ifndef USE_CR | |
5022 if (eol_type == EOL_MAC) | |
5023 { | |
5024 STRCAT(IObuff, shortmess(SHM_TEXT) ? _("[mac]") : _("[mac format]")); | |
5025 return TRUE; | |
5026 } | |
5027 #endif | |
5028 #if defined(USE_CRNL) || defined(USE_CR) | |
5029 if (eol_type == EOL_UNIX) | |
5030 { | |
5031 STRCAT(IObuff, shortmess(SHM_TEXT) ? _("[unix]") : _("[unix format]")); | |
5032 return TRUE; | |
5033 } | |
5034 #endif | |
5035 return FALSE; | |
5036 } | |
5037 | |
5038 /* | |
5039 * Append line and character count to IObuff. | |
5040 */ | |
33 | 5041 void |
7 | 5042 msg_add_lines(insert_space, lnum, nchars) |
5043 int insert_space; | |
5044 long lnum; | |
5045 long nchars; | |
5046 { | |
5047 char_u *p; | |
5048 | |
5049 p = IObuff + STRLEN(IObuff); | |
5050 | |
5051 if (insert_space) | |
5052 *p++ = ' '; | |
5053 if (shortmess(SHM_LINES)) | |
5054 sprintf((char *)p, "%ldL, %ldC", lnum, nchars); | |
5055 else | |
5056 { | |
5057 if (lnum == 1) | |
5058 STRCPY(p, _("1 line, ")); | |
5059 else | |
5060 sprintf((char *)p, _("%ld lines, "), lnum); | |
5061 p += STRLEN(p); | |
5062 if (nchars == 1) | |
5063 STRCPY(p, _("1 character")); | |
5064 else | |
5065 sprintf((char *)p, _("%ld characters"), nchars); | |
5066 } | |
5067 } | |
5068 | |
5069 /* | |
5070 * Append message for missing line separator to IObuff. | |
5071 */ | |
5072 static void | |
5073 msg_add_eol() | |
5074 { | |
5075 STRCAT(IObuff, shortmess(SHM_LAST) ? _("[noeol]") : _("[Incomplete last line]")); | |
5076 } | |
5077 | |
5078 /* | |
5079 * Check modification time of file, before writing to it. | |
5080 * The size isn't checked, because using a tool like "gzip" takes care of | |
5081 * using the same timestamp but can't set the size. | |
5082 */ | |
5083 static int | |
5084 check_mtime(buf, st) | |
5085 buf_T *buf; | |
5086 struct stat *st; | |
5087 { | |
5088 if (buf->b_mtime_read != 0 | |
5089 && time_differs((long)st->st_mtime, buf->b_mtime_read)) | |
5090 { | |
5091 msg_scroll = TRUE; /* don't overwrite messages here */ | |
5092 msg_silent = 0; /* must give this prompt */ | |
5093 /* don't use emsg() here, don't want to flush the buffers */ | |
5094 MSG_ATTR(_("WARNING: The file has been changed since reading it!!!"), | |
5095 hl_attr(HLF_E)); | |
5096 if (ask_yesno((char_u *)_("Do you really want to write to it"), | |
5097 TRUE) == 'n') | |
5098 return FAIL; | |
5099 msg_scroll = FALSE; /* always overwrite the file message now */ | |
5100 } | |
5101 return OK; | |
5102 } | |
5103 | |
5104 static int | |
5105 time_differs(t1, t2) | |
5106 long t1, t2; | |
5107 { | |
5108 #if defined(__linux__) || defined(MSDOS) || defined(MSWIN) | |
5109 /* On a FAT filesystem, esp. under Linux, there are only 5 bits to store | |
5110 * the seconds. Since the roundoff is done when flushing the inode, the | |
5111 * time may change unexpectedly by one second!!! */ | |
5112 return (t1 - t2 > 1 || t2 - t1 > 1); | |
5113 #else | |
5114 return (t1 != t2); | |
5115 #endif | |
5116 } | |
5117 | |
5118 /* | |
5119 * Call write() to write a number of bytes to the file. | |
5120 * Also handles encryption and 'encoding' conversion. | |
5121 * | |
5122 * Return FAIL for failure, OK otherwise. | |
5123 */ | |
5124 static int | |
5125 buf_write_bytes(ip) | |
5126 struct bw_info *ip; | |
5127 { | |
5128 int wlen; | |
5129 char_u *buf = ip->bw_buf; /* data to write */ | |
5130 int len = ip->bw_len; /* length of data */ | |
5131 #ifdef HAS_BW_FLAGS | |
5132 int flags = ip->bw_flags; /* extra flags */ | |
5133 #endif | |
5134 | |
5135 #ifdef FEAT_MBYTE | |
5136 /* | |
5137 * Skip conversion when writing the crypt magic number or the BOM. | |
5138 */ | |
5139 if (!(flags & FIO_NOCONVERT)) | |
5140 { | |
5141 char_u *p; | |
5142 unsigned c; | |
5143 int n; | |
5144 | |
5145 if (flags & FIO_UTF8) | |
5146 { | |
5147 /* | |
5148 * Convert latin1 in the buffer to UTF-8 in the file. | |
5149 */ | |
5150 p = ip->bw_conv_buf; /* translate to buffer */ | |
5151 for (wlen = 0; wlen < len; ++wlen) | |
5152 p += utf_char2bytes(buf[wlen], p); | |
5153 buf = ip->bw_conv_buf; | |
5154 len = (int)(p - ip->bw_conv_buf); | |
5155 } | |
5156 else if (flags & (FIO_UCS4 | FIO_UTF16 | FIO_UCS2 | FIO_LATIN1)) | |
5157 { | |
5158 /* | |
5159 * Convert UTF-8 bytes in the buffer to UCS-2, UCS-4, UTF-16 or | |
5160 * Latin1 chars in the file. | |
5161 */ | |
5162 if (flags & FIO_LATIN1) | |
5163 p = buf; /* translate in-place (can only get shorter) */ | |
5164 else | |
5165 p = ip->bw_conv_buf; /* translate to buffer */ | |
5166 for (wlen = 0; wlen < len; wlen += n) | |
5167 { | |
5168 if (wlen == 0 && ip->bw_restlen != 0) | |
5169 { | |
5170 int l; | |
5171 | |
5172 /* Use remainder of previous call. Append the start of | |
5173 * buf[] to get a full sequence. Might still be too | |
5174 * short! */ | |
5175 l = CONV_RESTLEN - ip->bw_restlen; | |
5176 if (l > len) | |
5177 l = len; | |
5178 mch_memmove(ip->bw_rest + ip->bw_restlen, buf, (size_t)l); | |
474 | 5179 n = utf_ptr2len_len(ip->bw_rest, ip->bw_restlen + l); |
7 | 5180 if (n > ip->bw_restlen + len) |
5181 { | |
5182 /* We have an incomplete byte sequence at the end to | |
5183 * be written. We can't convert it without the | |
5184 * remaining bytes. Keep them for the next call. */ | |
5185 if (ip->bw_restlen + len > CONV_RESTLEN) | |
5186 return FAIL; | |
5187 ip->bw_restlen += len; | |
5188 break; | |
5189 } | |
5190 if (n > 1) | |
5191 c = utf_ptr2char(ip->bw_rest); | |
5192 else | |
5193 c = ip->bw_rest[0]; | |
5194 if (n >= ip->bw_restlen) | |
5195 { | |
5196 n -= ip->bw_restlen; | |
5197 ip->bw_restlen = 0; | |
5198 } | |
5199 else | |
5200 { | |
5201 ip->bw_restlen -= n; | |
5202 mch_memmove(ip->bw_rest, ip->bw_rest + n, | |
5203 (size_t)ip->bw_restlen); | |
5204 n = 0; | |
5205 } | |
5206 } | |
5207 else | |
5208 { | |
474 | 5209 n = utf_ptr2len_len(buf + wlen, len - wlen); |
7 | 5210 if (n > len - wlen) |
5211 { | |
5212 /* We have an incomplete byte sequence at the end to | |
5213 * be written. We can't convert it without the | |
5214 * remaining bytes. Keep them for the next call. */ | |
5215 if (len - wlen > CONV_RESTLEN) | |
5216 return FAIL; | |
5217 ip->bw_restlen = len - wlen; | |
5218 mch_memmove(ip->bw_rest, buf + wlen, | |
5219 (size_t)ip->bw_restlen); | |
5220 break; | |
5221 } | |
5222 if (n > 1) | |
5223 c = utf_ptr2char(buf + wlen); | |
5224 else | |
5225 c = buf[wlen]; | |
5226 } | |
5227 | |
1947 | 5228 if (ucs2bytes(c, &p, flags) && !ip->bw_conv_error) |
5229 { | |
5230 ip->bw_conv_error = TRUE; | |
5231 ip->bw_conv_error_lnum = ip->bw_start_lnum; | |
5232 } | |
5233 if (c == NL) | |
5234 ++ip->bw_start_lnum; | |
7 | 5235 } |
5236 if (flags & FIO_LATIN1) | |
5237 len = (int)(p - buf); | |
5238 else | |
5239 { | |
5240 buf = ip->bw_conv_buf; | |
5241 len = (int)(p - ip->bw_conv_buf); | |
5242 } | |
5243 } | |
5244 | |
5245 # ifdef WIN3264 | |
5246 else if (flags & FIO_CODEPAGE) | |
5247 { | |
5248 /* | |
5249 * Convert UTF-8 or codepage to UCS-2 and then to MS-Windows | |
5250 * codepage. | |
5251 */ | |
5252 char_u *from; | |
5253 size_t fromlen; | |
5254 char_u *to; | |
5255 int u8c; | |
5256 BOOL bad = FALSE; | |
5257 int needed; | |
5258 | |
5259 if (ip->bw_restlen > 0) | |
5260 { | |
5261 /* Need to concatenate the remainder of the previous call and | |
5262 * the bytes of the current call. Use the end of the | |
5263 * conversion buffer for this. */ | |
5264 fromlen = len + ip->bw_restlen; | |
5265 from = ip->bw_conv_buf + ip->bw_conv_buflen - fromlen; | |
5266 mch_memmove(from, ip->bw_rest, (size_t)ip->bw_restlen); | |
5267 mch_memmove(from + ip->bw_restlen, buf, (size_t)len); | |
5268 } | |
5269 else | |
5270 { | |
5271 from = buf; | |
5272 fromlen = len; | |
5273 } | |
5274 | |
5275 to = ip->bw_conv_buf; | |
5276 if (enc_utf8) | |
5277 { | |
5278 /* Convert from UTF-8 to UCS-2, to the start of the buffer. | |
5279 * The buffer has been allocated to be big enough. */ | |
5280 while (fromlen > 0) | |
5281 { | |
835 | 5282 n = (int)utf_ptr2len_len(from, (int)fromlen); |
7 | 5283 if (n > (int)fromlen) /* incomplete byte sequence */ |
5284 break; | |
5285 u8c = utf_ptr2char(from); | |
5286 *to++ = (u8c & 0xff); | |
5287 *to++ = (u8c >> 8); | |
5288 fromlen -= n; | |
5289 from += n; | |
5290 } | |
5291 | |
5292 /* Copy remainder to ip->bw_rest[] to be used for the next | |
5293 * call. */ | |
5294 if (fromlen > CONV_RESTLEN) | |
5295 { | |
5296 /* weird overlong sequence */ | |
5297 ip->bw_conv_error = TRUE; | |
5298 return FAIL; | |
5299 } | |
5300 mch_memmove(ip->bw_rest, from, fromlen); | |
835 | 5301 ip->bw_restlen = (int)fromlen; |
7 | 5302 } |
5303 else | |
5304 { | |
5305 /* Convert from enc_codepage to UCS-2, to the start of the | |
5306 * buffer. The buffer has been allocated to be big enough. */ | |
5307 ip->bw_restlen = 0; | |
5308 needed = MultiByteToWideChar(enc_codepage, | |
1142 | 5309 MB_ERR_INVALID_CHARS, (LPCSTR)from, (int)fromlen, |
7 | 5310 NULL, 0); |
5311 if (needed == 0) | |
5312 { | |
5313 /* When conversion fails there may be a trailing byte. */ | |
5314 needed = MultiByteToWideChar(enc_codepage, | |
1142 | 5315 MB_ERR_INVALID_CHARS, (LPCSTR)from, (int)fromlen - 1, |
7 | 5316 NULL, 0); |
5317 if (needed == 0) | |
5318 { | |
5319 /* Conversion doesn't work. */ | |
5320 ip->bw_conv_error = TRUE; | |
5321 return FAIL; | |
5322 } | |
5323 /* Save the trailing byte for the next call. */ | |
5324 ip->bw_rest[0] = from[fromlen - 1]; | |
5325 ip->bw_restlen = 1; | |
5326 } | |
5327 needed = MultiByteToWideChar(enc_codepage, MB_ERR_INVALID_CHARS, | |
1142 | 5328 (LPCSTR)from, (int)(fromlen - ip->bw_restlen), |
7 | 5329 (LPWSTR)to, needed); |
5330 if (needed == 0) | |
5331 { | |
5332 /* Safety check: Conversion doesn't work. */ | |
5333 ip->bw_conv_error = TRUE; | |
5334 return FAIL; | |
5335 } | |
5336 to += needed * 2; | |
5337 } | |
5338 | |
5339 fromlen = to - ip->bw_conv_buf; | |
5340 buf = to; | |
5341 # ifdef CP_UTF8 /* VC 4.1 doesn't define CP_UTF8 */ | |
5342 if (FIO_GET_CP(flags) == CP_UTF8) | |
5343 { | |
5344 /* Convert from UCS-2 to UTF-8, using the remainder of the | |
5345 * conversion buffer. Fails when out of space. */ | |
5346 for (from = ip->bw_conv_buf; fromlen > 1; fromlen -= 2) | |
5347 { | |
5348 u8c = *from++; | |
5349 u8c += (*from++ << 8); | |
5350 to += utf_char2bytes(u8c, to); | |
5351 if (to + 6 >= ip->bw_conv_buf + ip->bw_conv_buflen) | |
5352 { | |
5353 ip->bw_conv_error = TRUE; | |
5354 return FAIL; | |
5355 } | |
5356 } | |
835 | 5357 len = (int)(to - buf); |
7 | 5358 } |
5359 else | |
5360 #endif | |
5361 { | |
5362 /* Convert from UCS-2 to the codepage, using the remainder of | |
5363 * the conversion buffer. If the conversion uses the default | |
5364 * character "0", the data doesn't fit in this encoding, so | |
5365 * fail. */ | |
5366 len = WideCharToMultiByte(FIO_GET_CP(flags), 0, | |
5367 (LPCWSTR)ip->bw_conv_buf, (int)fromlen / sizeof(WCHAR), | |
1142 | 5368 (LPSTR)to, (int)(ip->bw_conv_buflen - fromlen), 0, |
5369 &bad); | |
7 | 5370 if (bad) |
5371 { | |
5372 ip->bw_conv_error = TRUE; | |
5373 return FAIL; | |
5374 } | |
5375 } | |
5376 } | |
5377 # endif | |
5378 | |
765 | 5379 # ifdef MACOS_CONVERT |
7 | 5380 else if (flags & FIO_MACROMAN) |
5381 { | |
5382 /* | |
5383 * Convert UTF-8 or latin1 to Apple MacRoman. | |
5384 */ | |
5385 char_u *from; | |
5386 size_t fromlen; | |
5387 | |
5388 if (ip->bw_restlen > 0) | |
5389 { | |
5390 /* Need to concatenate the remainder of the previous call and | |
5391 * the bytes of the current call. Use the end of the | |
5392 * conversion buffer for this. */ | |
5393 fromlen = len + ip->bw_restlen; | |
5394 from = ip->bw_conv_buf + ip->bw_conv_buflen - fromlen; | |
5395 mch_memmove(from, ip->bw_rest, (size_t)ip->bw_restlen); | |
5396 mch_memmove(from + ip->bw_restlen, buf, (size_t)len); | |
5397 } | |
5398 else | |
5399 { | |
5400 from = buf; | |
5401 fromlen = len; | |
5402 } | |
5403 | |
18 | 5404 if (enc2macroman(from, fromlen, |
5405 ip->bw_conv_buf, &len, ip->bw_conv_buflen, | |
5406 ip->bw_rest, &ip->bw_restlen) == FAIL) | |
7 | 5407 { |
5408 ip->bw_conv_error = TRUE; | |
5409 return FAIL; | |
5410 } | |
5411 buf = ip->bw_conv_buf; | |
5412 } | |
5413 # endif | |
5414 | |
5415 # ifdef USE_ICONV | |
5416 if (ip->bw_iconv_fd != (iconv_t)-1) | |
5417 { | |
5418 const char *from; | |
5419 size_t fromlen; | |
5420 char *to; | |
5421 size_t tolen; | |
5422 | |
5423 /* Convert with iconv(). */ | |
5424 if (ip->bw_restlen > 0) | |
5425 { | |
1836 | 5426 char *fp; |
5427 | |
7 | 5428 /* Need to concatenate the remainder of the previous call and |
5429 * the bytes of the current call. Use the end of the | |
5430 * conversion buffer for this. */ | |
5431 fromlen = len + ip->bw_restlen; | |
1836 | 5432 fp = (char *)ip->bw_conv_buf + ip->bw_conv_buflen - fromlen; |
5433 mch_memmove(fp, ip->bw_rest, (size_t)ip->bw_restlen); | |
5434 mch_memmove(fp + ip->bw_restlen, buf, (size_t)len); | |
5435 from = fp; | |
7 | 5436 tolen = ip->bw_conv_buflen - fromlen; |
5437 } | |
5438 else | |
5439 { | |
5440 from = (const char *)buf; | |
5441 fromlen = len; | |
5442 tolen = ip->bw_conv_buflen; | |
5443 } | |
5444 to = (char *)ip->bw_conv_buf; | |
5445 | |
5446 if (ip->bw_first) | |
5447 { | |
5448 size_t save_len = tolen; | |
5449 | |
5450 /* output the initial shift state sequence */ | |
5451 (void)iconv(ip->bw_iconv_fd, NULL, NULL, &to, &tolen); | |
5452 | |
5453 /* There is a bug in iconv() on Linux (which appears to be | |
5454 * wide-spread) which sets "to" to NULL and messes up "tolen". | |
5455 */ | |
5456 if (to == NULL) | |
5457 { | |
5458 to = (char *)ip->bw_conv_buf; | |
5459 tolen = save_len; | |
5460 } | |
5461 ip->bw_first = FALSE; | |
5462 } | |
5463 | |
5464 /* | |
5465 * If iconv() has an error or there is not enough room, fail. | |
5466 */ | |
5467 if ((iconv(ip->bw_iconv_fd, (void *)&from, &fromlen, &to, &tolen) | |
5468 == (size_t)-1 && ICONV_ERRNO != ICONV_EINVAL) | |
5469 || fromlen > CONV_RESTLEN) | |
5470 { | |
5471 ip->bw_conv_error = TRUE; | |
5472 return FAIL; | |
5473 } | |
5474 | |
5475 /* copy remainder to ip->bw_rest[] to be used for the next call. */ | |
5476 if (fromlen > 0) | |
5477 mch_memmove(ip->bw_rest, (void *)from, fromlen); | |
5478 ip->bw_restlen = (int)fromlen; | |
5479 | |
5480 buf = ip->bw_conv_buf; | |
5481 len = (int)((char_u *)to - ip->bw_conv_buf); | |
5482 } | |
5483 # endif | |
5484 } | |
5485 #endif /* FEAT_MBYTE */ | |
5486 | |
5487 #ifdef FEAT_CRYPT | |
5488 if (flags & FIO_ENCRYPTED) /* encrypt the data */ | |
5489 { | |
5490 int ztemp, t, i; | |
5491 | |
5492 for (i = 0; i < len; i++) | |
5493 { | |
5494 ztemp = buf[i]; | |
5495 buf[i] = ZENCODE(ztemp, t); | |
5496 } | |
5497 } | |
5498 #endif | |
5499 | |
5500 /* Repeat the write(), it may be interrupted by a signal. */ | |
1142 | 5501 while (len > 0) |
7 | 5502 { |
5503 wlen = vim_write(ip->bw_fd, buf, len); | |
5504 if (wlen <= 0) /* error! */ | |
5505 return FAIL; | |
5506 len -= wlen; | |
5507 buf += wlen; | |
5508 } | |
5509 return OK; | |
5510 } | |
5511 | |
5512 #ifdef FEAT_MBYTE | |
5513 /* | |
5514 * Convert a Unicode character to bytes. | |
1947 | 5515 * Return TRUE for an error, FALSE when it's OK. |
7 | 5516 */ |
5517 static int | |
5518 ucs2bytes(c, pp, flags) | |
5519 unsigned c; /* in: character */ | |
5520 char_u **pp; /* in/out: pointer to result */ | |
5521 int flags; /* FIO_ flags */ | |
5522 { | |
5523 char_u *p = *pp; | |
5524 int error = FALSE; | |
5525 int cc; | |
5526 | |
5527 | |
5528 if (flags & FIO_UCS4) | |
5529 { | |
5530 if (flags & FIO_ENDIAN_L) | |
5531 { | |
5532 *p++ = c; | |
5533 *p++ = (c >> 8); | |
5534 *p++ = (c >> 16); | |
5535 *p++ = (c >> 24); | |
5536 } | |
5537 else | |
5538 { | |
5539 *p++ = (c >> 24); | |
5540 *p++ = (c >> 16); | |
5541 *p++ = (c >> 8); | |
5542 *p++ = c; | |
5543 } | |
5544 } | |
5545 else if (flags & (FIO_UCS2 | FIO_UTF16)) | |
5546 { | |
5547 if (c >= 0x10000) | |
5548 { | |
5549 if (flags & FIO_UTF16) | |
5550 { | |
5551 /* Make two words, ten bits of the character in each. First | |
5552 * word is 0xd800 - 0xdbff, second one 0xdc00 - 0xdfff */ | |
5553 c -= 0x10000; | |
5554 if (c >= 0x100000) | |
5555 error = TRUE; | |
5556 cc = ((c >> 10) & 0x3ff) + 0xd800; | |
5557 if (flags & FIO_ENDIAN_L) | |
5558 { | |
5559 *p++ = cc; | |
5560 *p++ = ((unsigned)cc >> 8); | |
5561 } | |
5562 else | |
5563 { | |
5564 *p++ = ((unsigned)cc >> 8); | |
5565 *p++ = cc; | |
5566 } | |
5567 c = (c & 0x3ff) + 0xdc00; | |
5568 } | |
5569 else | |
5570 error = TRUE; | |
5571 } | |
5572 if (flags & FIO_ENDIAN_L) | |
5573 { | |
5574 *p++ = c; | |
5575 *p++ = (c >> 8); | |
5576 } | |
5577 else | |
5578 { | |
5579 *p++ = (c >> 8); | |
5580 *p++ = c; | |
5581 } | |
5582 } | |
5583 else /* Latin1 */ | |
5584 { | |
5585 if (c >= 0x100) | |
5586 { | |
5587 error = TRUE; | |
5588 *p++ = 0xBF; | |
5589 } | |
5590 else | |
5591 *p++ = c; | |
5592 } | |
5593 | |
5594 *pp = p; | |
5595 return error; | |
5596 } | |
5597 | |
5598 /* | |
1948 | 5599 * Return TRUE if file encoding "fenc" requires conversion from or to |
5600 * 'encoding'. | |
7 | 5601 */ |
5602 static int | |
1948 | 5603 need_conversion(fenc) |
5604 char_u *fenc; | |
7 | 5605 { |
1948 | 5606 int same_encoding; |
5607 int enc_flags; | |
5608 int fenc_flags; | |
5609 | |
5610 if (*fenc == NUL || STRCMP(p_enc, fenc) == 0) | |
5611 same_encoding = TRUE; | |
5612 else | |
5613 { | |
5614 /* Ignore difference between "ansi" and "latin1", "ucs-4" and | |
5615 * "ucs-4be", etc. */ | |
5616 enc_flags = get_fio_flags(p_enc); | |
5617 fenc_flags = get_fio_flags(fenc); | |
5618 same_encoding = (enc_flags != 0 && fenc_flags == enc_flags); | |
5619 } | |
5620 if (same_encoding) | |
5621 { | |
5622 /* Specified encoding matches with 'encoding'. This requires | |
5623 * conversion when 'encoding' is Unicode but not UTF-8. */ | |
5624 return enc_unicode != 0; | |
5625 } | |
5626 | |
5627 /* Encodings differ. However, conversion is not needed when 'enc' is any | |
5628 * Unicode encoding and the file is UTF-8. */ | |
5629 return !(enc_utf8 && fenc_flags == FIO_UTF8); | |
7 | 5630 } |
5631 | |
5632 /* | |
5633 * Check "ptr" for a unicode encoding and return the FIO_ flags needed for the | |
5634 * internal conversion. | |
5635 * if "ptr" is an empty string, use 'encoding'. | |
5636 */ | |
5637 static int | |
5638 get_fio_flags(ptr) | |
5639 char_u *ptr; | |
5640 { | |
5641 int prop; | |
5642 | |
5643 if (*ptr == NUL) | |
5644 ptr = p_enc; | |
5645 | |
5646 prop = enc_canon_props(ptr); | |
5647 if (prop & ENC_UNICODE) | |
5648 { | |
5649 if (prop & ENC_2BYTE) | |
5650 { | |
5651 if (prop & ENC_ENDIAN_L) | |
5652 return FIO_UCS2 | FIO_ENDIAN_L; | |
5653 return FIO_UCS2; | |
5654 } | |
5655 if (prop & ENC_4BYTE) | |
5656 { | |
5657 if (prop & ENC_ENDIAN_L) | |
5658 return FIO_UCS4 | FIO_ENDIAN_L; | |
5659 return FIO_UCS4; | |
5660 } | |
5661 if (prop & ENC_2WORD) | |
5662 { | |
5663 if (prop & ENC_ENDIAN_L) | |
5664 return FIO_UTF16 | FIO_ENDIAN_L; | |
5665 return FIO_UTF16; | |
5666 } | |
5667 return FIO_UTF8; | |
5668 } | |
5669 if (prop & ENC_LATIN1) | |
5670 return FIO_LATIN1; | |
5671 /* must be ENC_DBCS, requires iconv() */ | |
5672 return 0; | |
5673 } | |
5674 | |
5675 #ifdef WIN3264 | |
5676 /* | |
5677 * Check "ptr" for a MS-Windows codepage name and return the FIO_ flags needed | |
5678 * for the conversion MS-Windows can do for us. Also accept "utf-8". | |
5679 * Used for conversion between 'encoding' and 'fileencoding'. | |
5680 */ | |
5681 static int | |
5682 get_win_fio_flags(ptr) | |
5683 char_u *ptr; | |
5684 { | |
5685 int cp; | |
5686 | |
5687 /* Cannot do this when 'encoding' is not utf-8 and not a codepage. */ | |
5688 if (!enc_utf8 && enc_codepage <= 0) | |
5689 return 0; | |
5690 | |
5691 cp = encname2codepage(ptr); | |
5692 if (cp == 0) | |
5693 { | |
5694 # ifdef CP_UTF8 /* VC 4.1 doesn't define CP_UTF8 */ | |
5695 if (STRCMP(ptr, "utf-8") == 0) | |
5696 cp = CP_UTF8; | |
5697 else | |
5698 # endif | |
5699 return 0; | |
5700 } | |
5701 return FIO_PUT_CP(cp) | FIO_CODEPAGE; | |
5702 } | |
5703 #endif | |
5704 | |
5705 #ifdef MACOS_X | |
5706 /* | |
5707 * Check "ptr" for a Carbon supported encoding and return the FIO_ flags | |
5708 * needed for the internal conversion to/from utf-8 or latin1. | |
5709 */ | |
5710 static int | |
5711 get_mac_fio_flags(ptr) | |
5712 char_u *ptr; | |
5713 { | |
5714 if ((enc_utf8 || STRCMP(p_enc, "latin1") == 0) | |
5715 && (enc_canon_props(ptr) & ENC_MACROMAN)) | |
5716 return FIO_MACROMAN; | |
5717 return 0; | |
5718 } | |
5719 #endif | |
5720 | |
5721 /* | |
5722 * Check for a Unicode BOM (Byte Order Mark) at the start of p[size]. | |
5723 * "size" must be at least 2. | |
5724 * Return the name of the encoding and set "*lenp" to the length. | |
5725 * Returns NULL when no BOM found. | |
5726 */ | |
5727 static char_u * | |
5728 check_for_bom(p, size, lenp, flags) | |
5729 char_u *p; | |
5730 long size; | |
5731 int *lenp; | |
5732 int flags; | |
5733 { | |
5734 char *name = NULL; | |
5735 int len = 2; | |
5736 | |
5737 if (p[0] == 0xef && p[1] == 0xbb && size >= 3 && p[2] == 0xbf | |
1688 | 5738 && (flags == FIO_ALL || flags == FIO_UTF8 || flags == 0)) |
7 | 5739 { |
5740 name = "utf-8"; /* EF BB BF */ | |
5741 len = 3; | |
5742 } | |
5743 else if (p[0] == 0xff && p[1] == 0xfe) | |
5744 { | |
5745 if (size >= 4 && p[2] == 0 && p[3] == 0 | |
5746 && (flags == FIO_ALL || flags == (FIO_UCS4 | FIO_ENDIAN_L))) | |
5747 { | |
5748 name = "ucs-4le"; /* FF FE 00 00 */ | |
5749 len = 4; | |
5750 } | |
1735 | 5751 else if (flags == (FIO_UCS2 | FIO_ENDIAN_L)) |
7 | 5752 name = "ucs-2le"; /* FF FE */ |
1735 | 5753 else if (flags == FIO_ALL || flags == (FIO_UTF16 | FIO_ENDIAN_L)) |
5754 /* utf-16le is preferred, it also works for ucs-2le text */ | |
7 | 5755 name = "utf-16le"; /* FF FE */ |
5756 } | |
5757 else if (p[0] == 0xfe && p[1] == 0xff | |
5758 && (flags == FIO_ALL || flags == FIO_UCS2 || flags == FIO_UTF16)) | |
5759 { | |
1547 | 5760 /* Default to utf-16, it works also for ucs-2 text. */ |
5761 if (flags == FIO_UCS2) | |
5762 name = "ucs-2"; /* FE FF */ | |
5763 else | |
7 | 5764 name = "utf-16"; /* FE FF */ |
5765 } | |
5766 else if (size >= 4 && p[0] == 0 && p[1] == 0 && p[2] == 0xfe | |
5767 && p[3] == 0xff && (flags == FIO_ALL || flags == FIO_UCS4)) | |
5768 { | |
5769 name = "ucs-4"; /* 00 00 FE FF */ | |
5770 len = 4; | |
5771 } | |
5772 | |
5773 *lenp = len; | |
5774 return (char_u *)name; | |
5775 } | |
5776 | |
5777 /* | |
5778 * Generate a BOM in "buf[4]" for encoding "name". | |
5779 * Return the length of the BOM (zero when no BOM). | |
5780 */ | |
5781 static int | |
5782 make_bom(buf, name) | |
5783 char_u *buf; | |
5784 char_u *name; | |
5785 { | |
5786 int flags; | |
5787 char_u *p; | |
5788 | |
5789 flags = get_fio_flags(name); | |
5790 | |
5791 /* Can't put a BOM in a non-Unicode file. */ | |
5792 if (flags == FIO_LATIN1 || flags == 0) | |
5793 return 0; | |
5794 | |
5795 if (flags == FIO_UTF8) /* UTF-8 */ | |
5796 { | |
5797 buf[0] = 0xef; | |
5798 buf[1] = 0xbb; | |
5799 buf[2] = 0xbf; | |
5800 return 3; | |
5801 } | |
5802 p = buf; | |
5803 (void)ucs2bytes(0xfeff, &p, flags); | |
5804 return (int)(p - buf); | |
5805 } | |
5806 #endif | |
5807 | |
1418 | 5808 #if defined(FEAT_VIMINFO) || defined(FEAT_BROWSE) || \ |
1471 | 5809 defined(FEAT_QUICKFIX) || defined(FEAT_AUTOCMD) || defined(PROTO) |
7 | 5810 /* |
5811 * Try to find a shortname by comparing the fullname with the current | |
5812 * directory. | |
1411 | 5813 * Returns "full_path" or pointer into "full_path" if shortened. |
5814 */ | |
5815 char_u * | |
5816 shorten_fname1(full_path) | |
5817 char_u *full_path; | |
5818 { | |
5819 char_u dirname[MAXPATHL]; | |
5820 char_u *p = full_path; | |
5821 | |
5822 if (mch_dirname(dirname, MAXPATHL) == OK) | |
5823 { | |
5824 p = shorten_fname(full_path, dirname); | |
5825 if (p == NULL || *p == NUL) | |
5826 p = full_path; | |
5827 } | |
5828 return p; | |
5829 } | |
1418 | 5830 #endif |
1411 | 5831 |
5832 /* | |
5833 * Try to find a shortname by comparing the fullname with the current | |
5834 * directory. | |
7 | 5835 * Returns NULL if not shorter name possible, pointer into "full_path" |
5836 * otherwise. | |
5837 */ | |
5838 char_u * | |
5839 shorten_fname(full_path, dir_name) | |
5840 char_u *full_path; | |
5841 char_u *dir_name; | |
5842 { | |
5843 int len; | |
5844 char_u *p; | |
5845 | |
5846 if (full_path == NULL) | |
5847 return NULL; | |
5848 len = (int)STRLEN(dir_name); | |
5849 if (fnamencmp(dir_name, full_path, len) == 0) | |
5850 { | |
5851 p = full_path + len; | |
5852 #if defined(MSDOS) || defined(MSWIN) || defined(OS2) | |
5853 /* | |
5854 * MSDOS: when a file is in the root directory, dir_name will end in a | |
5855 * slash, since C: by itself does not define a specific dir. In this | |
5856 * case p may already be correct. <negri> | |
5857 */ | |
5858 if (!((len > 2) && (*(p - 2) == ':'))) | |
5859 #endif | |
5860 { | |
5861 if (vim_ispathsep(*p)) | |
5862 ++p; | |
5863 #ifndef VMS /* the path separator is always part of the path */ | |
5864 else | |
5865 p = NULL; | |
5866 #endif | |
5867 } | |
5868 } | |
5869 #if defined(MSDOS) || defined(MSWIN) || defined(OS2) | |
5870 /* | |
5871 * When using a file in the current drive, remove the drive name: | |
5872 * "A:\dir\file" -> "\dir\file". This helps when moving a session file on | |
5873 * a floppy from "A:\dir" to "B:\dir". | |
5874 */ | |
5875 else if (len > 3 | |
5876 && TOUPPER_LOC(full_path[0]) == TOUPPER_LOC(dir_name[0]) | |
5877 && full_path[1] == ':' | |
5878 && vim_ispathsep(full_path[2])) | |
5879 p = full_path + 2; | |
5880 #endif | |
5881 else | |
5882 p = NULL; | |
5883 return p; | |
5884 } | |
5885 | |
5886 /* | |
5887 * Shorten filenames for all buffers. | |
5888 * When "force" is TRUE: Use full path from now on for files currently being | |
5889 * edited, both for file name and swap file name. Try to shorten the file | |
5890 * names a bit, if safe to do so. | |
5891 * When "force" is FALSE: Only try to shorten absolute file names. | |
5892 * For buffers that have buftype "nofile" or "scratch": never change the file | |
5893 * name. | |
5894 */ | |
5895 void | |
5896 shorten_fnames(force) | |
5897 int force; | |
5898 { | |
5899 char_u dirname[MAXPATHL]; | |
5900 buf_T *buf; | |
5901 char_u *p; | |
5902 | |
5903 mch_dirname(dirname, MAXPATHL); | |
5904 for (buf = firstbuf; buf != NULL; buf = buf->b_next) | |
5905 { | |
5906 if (buf->b_fname != NULL | |
5907 #ifdef FEAT_QUICKFIX | |
5908 && !bt_nofile(buf) | |
5909 #endif | |
5910 && !path_with_url(buf->b_fname) | |
5911 && (force | |
5912 || buf->b_sfname == NULL | |
5913 || mch_isFullName(buf->b_sfname))) | |
5914 { | |
5915 vim_free(buf->b_sfname); | |
5916 buf->b_sfname = NULL; | |
5917 p = shorten_fname(buf->b_ffname, dirname); | |
5918 if (p != NULL) | |
5919 { | |
5920 buf->b_sfname = vim_strsave(p); | |
5921 buf->b_fname = buf->b_sfname; | |
5922 } | |
5923 if (p == NULL || buf->b_fname == NULL) | |
5924 buf->b_fname = buf->b_ffname; | |
9 | 5925 } |
5926 | |
5927 /* Always make the swap file name a full path, a "nofile" buffer may | |
5928 * also have a swap file. */ | |
5929 mf_fullname(buf->b_ml.ml_mfp); | |
7 | 5930 } |
5931 #ifdef FEAT_WINDOWS | |
5932 status_redraw_all(); | |
672 | 5933 redraw_tabline = TRUE; |
7 | 5934 #endif |
5935 } | |
5936 | |
5937 #if (defined(FEAT_DND) && defined(FEAT_GUI_GTK)) \ | |
5938 || defined(FEAT_GUI_MSWIN) \ | |
5939 || defined(FEAT_GUI_MAC) \ | |
5940 || defined(PROTO) | |
5941 /* | |
5942 * Shorten all filenames in "fnames[count]" by current directory. | |
5943 */ | |
5944 void | |
5945 shorten_filenames(fnames, count) | |
5946 char_u **fnames; | |
5947 int count; | |
5948 { | |
5949 int i; | |
5950 char_u dirname[MAXPATHL]; | |
5951 char_u *p; | |
5952 | |
5953 if (fnames == NULL || count < 1) | |
5954 return; | |
5955 mch_dirname(dirname, sizeof(dirname)); | |
5956 for (i = 0; i < count; ++i) | |
5957 { | |
5958 if ((p = shorten_fname(fnames[i], dirname)) != NULL) | |
5959 { | |
5960 /* shorten_fname() returns pointer in given "fnames[i]". If free | |
5961 * "fnames[i]" first, "p" becomes invalid. So we need to copy | |
5962 * "p" first then free fnames[i]. */ | |
5963 p = vim_strsave(p); | |
5964 vim_free(fnames[i]); | |
5965 fnames[i] = p; | |
5966 } | |
5967 } | |
5968 } | |
5969 #endif | |
5970 | |
5971 /* | |
1651 | 5972 * add extension to file name - change path/fo.o.h to path/fo.o.h.ext or |
7 | 5973 * fo_o_h.ext for MSDOS or when shortname option set. |
5974 * | |
5975 * Assumed that fname is a valid name found in the filesystem we assure that | |
5976 * the return value is a different name and ends in 'ext'. | |
5977 * "ext" MUST be at most 4 characters long if it starts with a dot, 3 | |
5978 * characters otherwise. | |
5979 * Space for the returned name is allocated, must be freed later. | |
5980 * Returns NULL when out of memory. | |
5981 */ | |
5982 char_u * | |
5983 modname(fname, ext, prepend_dot) | |
5984 char_u *fname, *ext; | |
5985 int prepend_dot; /* may prepend a '.' to file name */ | |
5986 { | |
5987 return buf_modname( | |
5988 #ifdef SHORT_FNAME | |
5989 TRUE, | |
5990 #else | |
5991 (curbuf->b_p_sn || curbuf->b_shortname), | |
5992 #endif | |
5993 fname, ext, prepend_dot); | |
5994 } | |
5995 | |
5996 char_u * | |
5997 buf_modname(shortname, fname, ext, prepend_dot) | |
5998 int shortname; /* use 8.3 file name */ | |
5999 char_u *fname, *ext; | |
6000 int prepend_dot; /* may prepend a '.' to file name */ | |
6001 { | |
6002 char_u *retval; | |
6003 char_u *s; | |
6004 char_u *e; | |
6005 char_u *ptr; | |
6006 int fnamelen, extlen; | |
6007 | |
6008 extlen = (int)STRLEN(ext); | |
6009 | |
6010 /* | |
6011 * If there is no file name we must get the name of the current directory | |
6012 * (we need the full path in case :cd is used). | |
6013 */ | |
6014 if (fname == NULL || *fname == NUL) | |
6015 { | |
6016 retval = alloc((unsigned)(MAXPATHL + extlen + 3)); | |
6017 if (retval == NULL) | |
6018 return NULL; | |
6019 if (mch_dirname(retval, MAXPATHL) == FAIL || | |
6020 (fnamelen = (int)STRLEN(retval)) == 0) | |
6021 { | |
6022 vim_free(retval); | |
6023 return NULL; | |
6024 } | |
39 | 6025 if (!after_pathsep(retval, retval + fnamelen)) |
7 | 6026 { |
6027 retval[fnamelen++] = PATHSEP; | |
6028 retval[fnamelen] = NUL; | |
6029 } | |
6030 #ifndef SHORT_FNAME | |
6031 prepend_dot = FALSE; /* nothing to prepend a dot to */ | |
6032 #endif | |
6033 } | |
6034 else | |
6035 { | |
6036 fnamelen = (int)STRLEN(fname); | |
6037 retval = alloc((unsigned)(fnamelen + extlen + 3)); | |
6038 if (retval == NULL) | |
6039 return NULL; | |
6040 STRCPY(retval, fname); | |
6041 #ifdef VMS | |
6042 vms_remove_version(retval); /* we do not need versions here */ | |
6043 #endif | |
6044 } | |
6045 | |
6046 /* | |
6047 * search backwards until we hit a '/', '\' or ':' replacing all '.' | |
6048 * by '_' for MSDOS or when shortname option set and ext starts with a dot. | |
6049 * Then truncate what is after the '/', '\' or ':' to 8 characters for | |
6050 * MSDOS and 26 characters for AMIGA, a lot more for UNIX. | |
6051 */ | |
391 | 6052 for (ptr = retval + fnamelen; ptr > retval; mb_ptr_back(retval, ptr)) |
7 | 6053 { |
6054 #ifndef RISCOS | |
6055 if (*ext == '.' | |
391 | 6056 # ifdef USE_LONG_FNAME |
7 | 6057 && (!USE_LONG_FNAME || shortname) |
391 | 6058 # else |
6059 # ifndef SHORT_FNAME | |
7 | 6060 && shortname |
391 | 6061 # endif |
7 | 6062 # endif |
6063 ) | |
6064 if (*ptr == '.') /* replace '.' by '_' */ | |
6065 *ptr = '_'; | |
391 | 6066 #endif |
7 | 6067 if (vim_ispathsep(*ptr)) |
391 | 6068 { |
6069 ++ptr; | |
7 | 6070 break; |
391 | 6071 } |
6072 } | |
7 | 6073 |
6074 /* the file name has at most BASENAMELEN characters. */ | |
6075 #ifndef SHORT_FNAME | |
6076 if (STRLEN(ptr) > (unsigned)BASENAMELEN) | |
6077 ptr[BASENAMELEN] = '\0'; | |
6078 #endif | |
6079 | |
6080 s = ptr + STRLEN(ptr); | |
6081 | |
6082 /* | |
6083 * For 8.3 file names we may have to reduce the length. | |
6084 */ | |
6085 #ifdef USE_LONG_FNAME | |
6086 if (!USE_LONG_FNAME || shortname) | |
6087 #else | |
6088 # ifndef SHORT_FNAME | |
6089 if (shortname) | |
6090 # endif | |
6091 #endif | |
6092 { | |
6093 /* | |
6094 * If there is no file name, or the file name ends in '/', and the | |
6095 * extension starts with '.', put a '_' before the dot, because just | |
6096 * ".ext" is invalid. | |
6097 */ | |
6098 if (fname == NULL || *fname == NUL | |
6099 || vim_ispathsep(fname[STRLEN(fname) - 1])) | |
6100 { | |
6101 #ifdef RISCOS | |
6102 if (*ext == '/') | |
6103 #else | |
6104 if (*ext == '.') | |
6105 #endif | |
6106 *s++ = '_'; | |
6107 } | |
6108 /* | |
6109 * If the extension starts with '.', truncate the base name at 8 | |
6110 * characters | |
6111 */ | |
6112 #ifdef RISCOS | |
6113 /* We normally use '/', but swap files are '_' */ | |
6114 else if (*ext == '/' || *ext == '_') | |
6115 #else | |
6116 else if (*ext == '.') | |
6117 #endif | |
6118 { | |
1877 | 6119 if ((size_t)(s - ptr) > (size_t)8) |
7 | 6120 { |
6121 s = ptr + 8; | |
6122 *s = '\0'; | |
6123 } | |
6124 } | |
6125 /* | |
6126 * If the extension doesn't start with '.', and the file name | |
6127 * doesn't have an extension yet, append a '.' | |
6128 */ | |
6129 #ifdef RISCOS | |
6130 else if ((e = vim_strchr(ptr, '/')) == NULL) | |
6131 *s++ = '/'; | |
6132 #else | |
6133 else if ((e = vim_strchr(ptr, '.')) == NULL) | |
6134 *s++ = '.'; | |
6135 #endif | |
6136 /* | |
6137 * If the extension doesn't start with '.', and there already is an | |
1201 | 6138 * extension, it may need to be truncated |
7 | 6139 */ |
6140 else if ((int)STRLEN(e) + extlen > 4) | |
6141 s = e + 4 - extlen; | |
6142 } | |
6143 #if defined(OS2) || defined(USE_LONG_FNAME) || defined(WIN3264) | |
6144 /* | |
6145 * If there is no file name, and the extension starts with '.', put a | |
6146 * '_' before the dot, because just ".ext" may be invalid if it's on a | |
6147 * FAT partition, and on HPFS it doesn't matter. | |
6148 */ | |
6149 else if ((fname == NULL || *fname == NUL) && *ext == '.') | |
6150 *s++ = '_'; | |
6151 #endif | |
6152 | |
6153 /* | |
1651 | 6154 * Append the extension. |
7 | 6155 * ext can start with '.' and cannot exceed 3 more characters. |
6156 */ | |
6157 STRCPY(s, ext); | |
6158 | |
6159 #ifndef SHORT_FNAME | |
6160 /* | |
6161 * Prepend the dot. | |
6162 */ | |
6163 if (prepend_dot && !shortname && *(e = gettail(retval)) != | |
6164 #ifdef RISCOS | |
6165 '/' | |
6166 #else | |
6167 '.' | |
6168 #endif | |
6169 #ifdef USE_LONG_FNAME | |
6170 && USE_LONG_FNAME | |
6171 #endif | |
6172 ) | |
6173 { | |
1620 | 6174 STRMOVE(e + 1, e); |
7 | 6175 #ifdef RISCOS |
6176 *e = '/'; | |
6177 #else | |
6178 *e = '.'; | |
6179 #endif | |
6180 } | |
6181 #endif | |
6182 | |
6183 /* | |
6184 * Check that, after appending the extension, the file name is really | |
6185 * different. | |
6186 */ | |
6187 if (fname != NULL && STRCMP(fname, retval) == 0) | |
6188 { | |
6189 /* we search for a character that can be replaced by '_' */ | |
6190 while (--s >= ptr) | |
6191 { | |
6192 if (*s != '_') | |
6193 { | |
6194 *s = '_'; | |
6195 break; | |
6196 } | |
6197 } | |
6198 if (s < ptr) /* fname was "________.<ext>", how tricky! */ | |
6199 *ptr = 'v'; | |
6200 } | |
6201 return retval; | |
6202 } | |
6203 | |
6204 /* | |
6205 * Like fgets(), but if the file line is too long, it is truncated and the | |
6206 * rest of the line is thrown away. Returns TRUE for end-of-file. | |
6207 */ | |
6208 int | |
6209 vim_fgets(buf, size, fp) | |
6210 char_u *buf; | |
6211 int size; | |
6212 FILE *fp; | |
6213 { | |
6214 char *eof; | |
6215 #define FGETS_SIZE 200 | |
6216 char tbuf[FGETS_SIZE]; | |
6217 | |
6218 buf[size - 2] = NUL; | |
6219 #ifdef USE_CR | |
6220 eof = fgets_cr((char *)buf, size, fp); | |
6221 #else | |
6222 eof = fgets((char *)buf, size, fp); | |
6223 #endif | |
6224 if (buf[size - 2] != NUL && buf[size - 2] != '\n') | |
6225 { | |
6226 buf[size - 1] = NUL; /* Truncate the line */ | |
6227 | |
6228 /* Now throw away the rest of the line: */ | |
6229 do | |
6230 { | |
6231 tbuf[FGETS_SIZE - 2] = NUL; | |
6232 #ifdef USE_CR | |
1757 | 6233 ignoredp = fgets_cr((char *)tbuf, FGETS_SIZE, fp); |
7 | 6234 #else |
1757 | 6235 ignoredp = fgets((char *)tbuf, FGETS_SIZE, fp); |
7 | 6236 #endif |
6237 } while (tbuf[FGETS_SIZE - 2] != NUL && tbuf[FGETS_SIZE - 2] != '\n'); | |
6238 } | |
6239 return (eof == NULL); | |
6240 } | |
6241 | |
6242 #if defined(USE_CR) || defined(PROTO) | |
6243 /* | |
6244 * Like vim_fgets(), but accept any line terminator: CR, CR-LF or LF. | |
6245 * Returns TRUE for end-of-file. | |
6246 * Only used for the Mac, because it's much slower than vim_fgets(). | |
6247 */ | |
6248 int | |
6249 tag_fgets(buf, size, fp) | |
6250 char_u *buf; | |
6251 int size; | |
6252 FILE *fp; | |
6253 { | |
6254 int i = 0; | |
6255 int c; | |
6256 int eof = FALSE; | |
6257 | |
6258 for (;;) | |
6259 { | |
6260 c = fgetc(fp); | |
6261 if (c == EOF) | |
6262 { | |
6263 eof = TRUE; | |
6264 break; | |
6265 } | |
6266 if (c == '\r') | |
6267 { | |
6268 /* Always store a NL for end-of-line. */ | |
6269 if (i < size - 1) | |
6270 buf[i++] = '\n'; | |
6271 c = fgetc(fp); | |
6272 if (c != '\n') /* Macintosh format: single CR. */ | |
6273 ungetc(c, fp); | |
6274 break; | |
6275 } | |
6276 if (i < size - 1) | |
6277 buf[i++] = c; | |
6278 if (c == '\n') | |
6279 break; | |
6280 } | |
6281 buf[i] = NUL; | |
6282 return eof; | |
6283 } | |
6284 #endif | |
6285 | |
6286 /* | |
6287 * rename() only works if both files are on the same file system, this | |
6288 * function will (attempts to?) copy the file across if rename fails -- webb | |
6289 * Return -1 for failure, 0 for success. | |
6290 */ | |
6291 int | |
6292 vim_rename(from, to) | |
6293 char_u *from; | |
6294 char_u *to; | |
6295 { | |
6296 int fd_in; | |
6297 int fd_out; | |
6298 int n; | |
6299 char *errmsg = NULL; | |
6300 char *buffer; | |
6301 #ifdef AMIGA | |
6302 BPTR flock; | |
6303 #endif | |
6304 struct stat st; | |
194 | 6305 long perm; |
199 | 6306 #ifdef HAVE_ACL |
6307 vim_acl_T acl; /* ACL from original file */ | |
6308 #endif | |
1779 | 6309 #if defined(UNIX) || defined(CASE_INSENSITIVE_FILENAME) |
6310 int use_tmp_file = FALSE; | |
6311 #endif | |
7 | 6312 |
6313 /* | |
1779 | 6314 * When the names are identical, there is nothing to do. When they refer |
6315 * to the same file (ignoring case and slash/backslash differences) but | |
6316 * the file name differs we need to go through a temp file. | |
7 | 6317 */ |
6318 if (fnamecmp(from, to) == 0) | |
1779 | 6319 { |
6320 #ifdef CASE_INSENSITIVE_FILENAME | |
6321 if (STRCMP(gettail(from), gettail(to)) != 0) | |
6322 use_tmp_file = TRUE; | |
6323 else | |
6324 #endif | |
6325 return 0; | |
6326 } | |
7 | 6327 |
6328 /* | |
6329 * Fail if the "from" file doesn't exist. Avoids that "to" is deleted. | |
6330 */ | |
6331 if (mch_stat((char *)from, &st) < 0) | |
6332 return -1; | |
6333 | |
1778 | 6334 #ifdef UNIX |
6335 { | |
6336 struct stat st_to; | |
6337 | |
6338 /* It's possible for the source and destination to be the same file. | |
6339 * This happens when "from" and "to" differ in case and are on a FAT32 | |
6340 * filesystem. In that case go through a temp file name. */ | |
6341 if (mch_stat((char *)to, &st_to) >= 0 | |
6342 && st.st_dev == st_to.st_dev | |
6343 && st.st_ino == st_to.st_ino) | |
1779 | 6344 use_tmp_file = TRUE; |
6345 } | |
6346 #endif | |
6347 | |
6348 #if defined(UNIX) || defined(CASE_INSENSITIVE_FILENAME) | |
6349 if (use_tmp_file) | |
6350 { | |
6351 char tempname[MAXPATHL + 1]; | |
6352 | |
6353 /* | |
6354 * Find a name that doesn't exist and is in the same directory. | |
6355 * Rename "from" to "tempname" and then rename "tempname" to "to". | |
6356 */ | |
6357 if (STRLEN(from) >= MAXPATHL - 5) | |
6358 return -1; | |
6359 STRCPY(tempname, from); | |
6360 for (n = 123; n < 99999; ++n) | |
6361 { | |
6362 sprintf((char *)gettail((char_u *)tempname), "%d", n); | |
6363 if (mch_stat(tempname, &st) < 0) | |
6364 { | |
6365 if (mch_rename((char *)from, tempname) == 0) | |
1778 | 6366 { |
1779 | 6367 if (mch_rename(tempname, (char *)to) == 0) |
6368 return 0; | |
6369 /* Strange, the second step failed. Try moving the | |
6370 * file back and return failure. */ | |
6371 mch_rename(tempname, (char *)from); | |
1778 | 6372 return -1; |
6373 } | |
1779 | 6374 /* If it fails for one temp name it will most likely fail |
6375 * for any temp name, give up. */ | |
6376 return -1; | |
6377 } | |
6378 } | |
6379 return -1; | |
1778 | 6380 } |
6381 #endif | |
6382 | |
7 | 6383 /* |
6384 * Delete the "to" file, this is required on some systems to make the | |
6385 * mch_rename() work, on other systems it makes sure that we don't have | |
6386 * two files when the mch_rename() fails. | |
6387 */ | |
6388 | |
6389 #ifdef AMIGA | |
6390 /* | |
6391 * With MSDOS-compatible filesystems (crossdos, messydos) it is possible | |
6392 * that the name of the "to" file is the same as the "from" file, even | |
1201 | 6393 * though the names are different. To avoid the chance of accidentally |
7 | 6394 * deleting the "from" file (horror!) we lock it during the remove. |
6395 * | |
6396 * When used for making a backup before writing the file: This should not | |
6397 * happen with ":w", because startscript() should detect this problem and | |
6398 * set buf->b_shortname, causing modname() to return a correct ".bak" file | |
6399 * name. This problem does exist with ":w filename", but then the | |
6400 * original file will be somewhere else so the backup isn't really | |
6401 * important. If autoscripting is off the rename may fail. | |
6402 */ | |
6403 flock = Lock((UBYTE *)from, (long)ACCESS_READ); | |
6404 #endif | |
6405 mch_remove(to); | |
6406 #ifdef AMIGA | |
6407 if (flock) | |
6408 UnLock(flock); | |
6409 #endif | |
6410 | |
6411 /* | |
6412 * First try a normal rename, return if it works. | |
6413 */ | |
6414 if (mch_rename((char *)from, (char *)to) == 0) | |
6415 return 0; | |
6416 | |
6417 /* | |
6418 * Rename() failed, try copying the file. | |
6419 */ | |
194 | 6420 perm = mch_getperm(from); |
199 | 6421 #ifdef HAVE_ACL |
6422 /* For systems that support ACL: get the ACL from the original file. */ | |
6423 acl = mch_get_acl(from); | |
6424 #endif | |
7 | 6425 fd_in = mch_open((char *)from, O_RDONLY|O_EXTRA, 0); |
6426 if (fd_in == -1) | |
1651 | 6427 { |
6428 #ifdef HAVE_ACL | |
6429 mch_free_acl(acl); | |
6430 #endif | |
7 | 6431 return -1; |
1651 | 6432 } |
194 | 6433 |
6434 /* Create the new file with same permissions as the original. */ | |
557 | 6435 fd_out = mch_open((char *)to, |
6436 O_CREAT|O_EXCL|O_WRONLY|O_EXTRA|O_NOFOLLOW, (int)perm); | |
7 | 6437 if (fd_out == -1) |
6438 { | |
6439 close(fd_in); | |
1651 | 6440 #ifdef HAVE_ACL |
6441 mch_free_acl(acl); | |
6442 #endif | |
7 | 6443 return -1; |
6444 } | |
6445 | |
6446 buffer = (char *)alloc(BUFSIZE); | |
6447 if (buffer == NULL) | |
6448 { | |
1651 | 6449 close(fd_out); |
7 | 6450 close(fd_in); |
1651 | 6451 #ifdef HAVE_ACL |
6452 mch_free_acl(acl); | |
6453 #endif | |
7 | 6454 return -1; |
6455 } | |
6456 | |
6457 while ((n = vim_read(fd_in, buffer, BUFSIZE)) > 0) | |
6458 if (vim_write(fd_out, buffer, n) != n) | |
6459 { | |
6460 errmsg = _("E208: Error writing to \"%s\""); | |
6461 break; | |
6462 } | |
6463 | |
6464 vim_free(buffer); | |
6465 close(fd_in); | |
6466 if (close(fd_out) < 0) | |
6467 errmsg = _("E209: Error closing \"%s\""); | |
6468 if (n < 0) | |
6469 { | |
6470 errmsg = _("E210: Error reading \"%s\""); | |
6471 to = from; | |
6472 } | |
1201 | 6473 #ifndef UNIX /* for Unix mch_open() already set the permission */ |
194 | 6474 mch_setperm(to, perm); |
570 | 6475 #endif |
199 | 6476 #ifdef HAVE_ACL |
6477 mch_set_acl(to, acl); | |
1651 | 6478 mch_free_acl(acl); |
199 | 6479 #endif |
7 | 6480 if (errmsg != NULL) |
6481 { | |
6482 EMSG2(errmsg, to); | |
6483 return -1; | |
6484 } | |
6485 mch_remove(from); | |
6486 return 0; | |
6487 } | |
6488 | |
6489 static int already_warned = FALSE; | |
6490 | |
6491 /* | |
6492 * Check if any not hidden buffer has been changed. | |
6493 * Postpone the check if there are characters in the stuff buffer, a global | |
6494 * command is being executed, a mapping is being executed or an autocommand is | |
6495 * busy. | |
6496 * Returns TRUE if some message was written (screen should be redrawn and | |
6497 * cursor positioned). | |
6498 */ | |
6499 int | |
6500 check_timestamps(focus) | |
6501 int focus; /* called for GUI focus event */ | |
6502 { | |
6503 buf_T *buf; | |
6504 int didit = 0; | |
6505 int n; | |
6506 | |
6507 /* Don't check timestamps while system() or another low-level function may | |
6508 * cause us to lose and gain focus. */ | |
6509 if (no_check_timestamps > 0) | |
6510 return FALSE; | |
6511 | |
6512 /* Avoid doing a check twice. The OK/Reload dialog can cause a focus | |
6513 * event and we would keep on checking if the file is steadily growing. | |
6514 * Do check again after typing something. */ | |
6515 if (focus && did_check_timestamps) | |
6516 { | |
6517 need_check_timestamps = TRUE; | |
6518 return FALSE; | |
6519 } | |
6520 | |
6521 if (!stuff_empty() || global_busy || !typebuf_typed() | |
6522 #ifdef FEAT_AUTOCMD | |
1834 | 6523 || autocmd_busy || curbuf_lock > 0 || allbuf_lock > 0 |
7 | 6524 #endif |
6525 ) | |
6526 need_check_timestamps = TRUE; /* check later */ | |
6527 else | |
6528 { | |
6529 ++no_wait_return; | |
6530 did_check_timestamps = TRUE; | |
6531 already_warned = FALSE; | |
6532 for (buf = firstbuf; buf != NULL; ) | |
6533 { | |
6534 /* Only check buffers in a window. */ | |
6535 if (buf->b_nwindows > 0) | |
6536 { | |
6537 n = buf_check_timestamp(buf, focus); | |
6538 if (didit < n) | |
6539 didit = n; | |
6540 if (n > 0 && !buf_valid(buf)) | |
6541 { | |
6542 /* Autocommands have removed the buffer, start at the | |
6543 * first one again. */ | |
6544 buf = firstbuf; | |
6545 continue; | |
6546 } | |
6547 } | |
6548 buf = buf->b_next; | |
6549 } | |
6550 --no_wait_return; | |
6551 need_check_timestamps = FALSE; | |
6552 if (need_wait_return && didit == 2) | |
6553 { | |
6554 /* make sure msg isn't overwritten */ | |
6555 msg_puts((char_u *)"\n"); | |
6556 out_flush(); | |
6557 } | |
6558 } | |
6559 return didit; | |
6560 } | |
6561 | |
6562 /* | |
6563 * Move all the lines from buffer "frombuf" to buffer "tobuf". | |
6564 * Return OK or FAIL. When FAIL "tobuf" is incomplete and/or "frombuf" is not | |
6565 * empty. | |
6566 */ | |
6567 static int | |
6568 move_lines(frombuf, tobuf) | |
6569 buf_T *frombuf; | |
6570 buf_T *tobuf; | |
6571 { | |
6572 buf_T *tbuf = curbuf; | |
6573 int retval = OK; | |
6574 linenr_T lnum; | |
6575 char_u *p; | |
6576 | |
6577 /* Copy the lines in "frombuf" to "tobuf". */ | |
6578 curbuf = tobuf; | |
6579 for (lnum = 1; lnum <= frombuf->b_ml.ml_line_count; ++lnum) | |
6580 { | |
6581 p = vim_strsave(ml_get_buf(frombuf, lnum, FALSE)); | |
6582 if (p == NULL || ml_append(lnum - 1, p, 0, FALSE) == FAIL) | |
6583 { | |
6584 vim_free(p); | |
6585 retval = FAIL; | |
6586 break; | |
6587 } | |
6588 vim_free(p); | |
6589 } | |
6590 | |
6591 /* Delete all the lines in "frombuf". */ | |
6592 if (retval != FAIL) | |
6593 { | |
6594 curbuf = frombuf; | |
1055 | 6595 for (lnum = curbuf->b_ml.ml_line_count; lnum > 0; --lnum) |
6596 if (ml_delete(lnum, FALSE) == FAIL) | |
7 | 6597 { |
6598 /* Oops! We could try putting back the saved lines, but that | |
6599 * might fail again... */ | |
6600 retval = FAIL; | |
6601 break; | |
6602 } | |
6603 } | |
6604 | |
6605 curbuf = tbuf; | |
6606 return retval; | |
6607 } | |
6608 | |
6609 /* | |
6610 * Check if buffer "buf" has been changed. | |
6611 * Also check if the file for a new buffer unexpectedly appeared. | |
6612 * return 1 if a changed buffer was found. | |
6613 * return 2 if a message has been displayed. | |
6614 * return 0 otherwise. | |
6615 */ | |
6616 int | |
6617 buf_check_timestamp(buf, focus) | |
6618 buf_T *buf; | |
1877 | 6619 int focus UNUSED; /* called for GUI focus event */ |
7 | 6620 { |
6621 struct stat st; | |
6622 int stat_res; | |
6623 int retval = 0; | |
6624 char_u *path; | |
6625 char_u *tbuf; | |
6626 char *mesg = NULL; | |
188 | 6627 char *mesg2 = ""; |
7 | 6628 int helpmesg = FALSE; |
6629 int reload = FALSE; | |
6630 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) | |
6631 int can_reload = FALSE; | |
6632 #endif | |
6633 size_t orig_size = buf->b_orig_size; | |
6634 int orig_mode = buf->b_orig_mode; | |
6635 #ifdef FEAT_GUI | |
6636 int save_mouse_correct = need_mouse_correct; | |
6637 #endif | |
6638 #ifdef FEAT_AUTOCMD | |
6639 static int busy = FALSE; | |
179 | 6640 int n; |
6641 char_u *s; | |
6642 #endif | |
6643 char *reason; | |
7 | 6644 |
6645 /* If there is no file name, the buffer is not loaded, 'buftype' is | |
6646 * set, we are in the middle of a save or being called recursively: ignore | |
6647 * this buffer. */ | |
6648 if (buf->b_ffname == NULL | |
6649 || buf->b_ml.ml_mfp == NULL | |
6650 #if defined(FEAT_QUICKFIX) | |
6651 || *buf->b_p_bt != NUL | |
6652 #endif | |
6653 || buf->b_saving | |
6654 #ifdef FEAT_AUTOCMD | |
6655 || busy | |
6656 #endif | |
33 | 6657 #ifdef FEAT_NETBEANS_INTG |
6658 || isNetbeansBuffer(buf) | |
6659 #endif | |
7 | 6660 ) |
6661 return 0; | |
6662 | |
6663 if ( !(buf->b_flags & BF_NOTEDITED) | |
6664 && buf->b_mtime != 0 | |
6665 && ((stat_res = mch_stat((char *)buf->b_ffname, &st)) < 0 | |
6666 || time_differs((long)st.st_mtime, buf->b_mtime) | |
6667 #ifdef HAVE_ST_MODE | |
6668 || (int)st.st_mode != buf->b_orig_mode | |
6669 #else | |
6670 || mch_getperm(buf->b_ffname) != buf->b_orig_mode | |
6671 #endif | |
6672 )) | |
6673 { | |
6674 retval = 1; | |
6675 | |
628 | 6676 /* set b_mtime to stop further warnings (e.g., when executing |
6677 * FileChangedShell autocmd) */ | |
7 | 6678 if (stat_res < 0) |
6679 { | |
6680 buf->b_mtime = 0; | |
6681 buf->b_orig_size = 0; | |
6682 buf->b_orig_mode = 0; | |
6683 } | |
6684 else | |
6685 buf_store_time(buf, &st, buf->b_ffname); | |
6686 | |
6687 /* Don't do anything for a directory. Might contain the file | |
6688 * explorer. */ | |
6689 if (mch_isdir(buf->b_fname)) | |
6690 ; | |
6691 | |
6692 /* | |
6693 * If 'autoread' is set, the buffer has no changes and the file still | |
6694 * exists, reload the buffer. Use the buffer-local option value if it | |
6695 * was set, the global option value otherwise. | |
6696 */ | |
6697 else if ((buf->b_p_ar >= 0 ? buf->b_p_ar : p_ar) | |
6698 && !bufIsChanged(buf) && stat_res >= 0) | |
6699 reload = TRUE; | |
6700 else | |
6701 { | |
179 | 6702 if (stat_res < 0) |
6703 reason = "deleted"; | |
6704 else if (bufIsChanged(buf)) | |
6705 reason = "conflict"; | |
6706 else if (orig_size != buf->b_orig_size || buf_contents_changed(buf)) | |
6707 reason = "changed"; | |
6708 else if (orig_mode != buf->b_orig_mode) | |
6709 reason = "mode"; | |
6710 else | |
6711 reason = "time"; | |
6712 | |
7 | 6713 #ifdef FEAT_AUTOCMD |
6714 /* | |
6715 * Only give the warning if there are no FileChangedShell | |
6716 * autocommands. | |
6717 * Avoid being called recursively by setting "busy". | |
6718 */ | |
6719 busy = TRUE; | |
532 | 6720 # ifdef FEAT_EVAL |
179 | 6721 set_vim_var_string(VV_FCS_REASON, (char_u *)reason, -1); |
6722 set_vim_var_string(VV_FCS_CHOICE, (char_u *)"", -1); | |
532 | 6723 # endif |
1834 | 6724 ++allbuf_lock; |
7 | 6725 n = apply_autocmds(EVENT_FILECHANGEDSHELL, |
6726 buf->b_fname, buf->b_fname, FALSE, buf); | |
1834 | 6727 --allbuf_lock; |
7 | 6728 busy = FALSE; |
6729 if (n) | |
6730 { | |
6731 if (!buf_valid(buf)) | |
6732 EMSG(_("E246: FileChangedShell autocommand deleted buffer")); | |
532 | 6733 # ifdef FEAT_EVAL |
179 | 6734 s = get_vim_var_str(VV_FCS_CHOICE); |
6735 if (STRCMP(s, "reload") == 0 && *reason != 'd') | |
6736 reload = TRUE; | |
6737 else if (STRCMP(s, "ask") == 0) | |
6738 n = FALSE; | |
6739 else | |
532 | 6740 # endif |
179 | 6741 return 2; |
7 | 6742 } |
179 | 6743 if (!n) |
7 | 6744 #endif |
6745 { | |
179 | 6746 if (*reason == 'd') |
6747 mesg = _("E211: File \"%s\" no longer available"); | |
7 | 6748 else |
6749 { | |
6750 helpmesg = TRUE; | |
6751 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) | |
6752 can_reload = TRUE; | |
6753 #endif | |
6754 /* | |
6755 * Check if the file contents really changed to avoid | |
6756 * giving a warning when only the timestamp was set (e.g., | |
6757 * checked out of CVS). Always warn when the buffer was | |
6758 * changed. | |
6759 */ | |
179 | 6760 if (reason[2] == 'n') |
6761 { | |
7 | 6762 mesg = _("W12: Warning: File \"%s\" has changed and the buffer was changed in Vim as well"); |
179 | 6763 mesg2 = _("See \":help W12\" for more info."); |
6764 } | |
6765 else if (reason[1] == 'h') | |
6766 { | |
7 | 6767 mesg = _("W11: Warning: File \"%s\" has changed since editing started"); |
179 | 6768 mesg2 = _("See \":help W11\" for more info."); |
6769 } | |
6770 else if (*reason == 'm') | |
6771 { | |
7 | 6772 mesg = _("W16: Warning: Mode of file \"%s\" has changed since editing started"); |
179 | 6773 mesg2 = _("See \":help W16\" for more info."); |
6774 } | |
1913 | 6775 else |
6776 /* Only timestamp changed, store it to avoid a warning | |
6777 * in check_mtime() later. */ | |
6778 buf->b_mtime_read = buf->b_mtime; | |
7 | 6779 } |
6780 } | |
6781 } | |
6782 | |
6783 } | |
6784 else if ((buf->b_flags & BF_NEW) && !(buf->b_flags & BF_NEW_W) | |
6785 && vim_fexists(buf->b_ffname)) | |
6786 { | |
6787 retval = 1; | |
6788 mesg = _("W13: Warning: File \"%s\" has been created after editing started"); | |
6789 buf->b_flags |= BF_NEW_W; | |
6790 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) | |
6791 can_reload = TRUE; | |
6792 #endif | |
6793 } | |
6794 | |
6795 if (mesg != NULL) | |
6796 { | |
6797 path = home_replace_save(buf, buf->b_fname); | |
6798 if (path != NULL) | |
6799 { | |
179 | 6800 if (!helpmesg) |
7 | 6801 mesg2 = ""; |
6802 tbuf = alloc((unsigned)(STRLEN(path) + STRLEN(mesg) | |
6803 + STRLEN(mesg2) + 2)); | |
6804 sprintf((char *)tbuf, mesg, path); | |
1848 | 6805 #ifdef FEAT_EVAL |
6806 /* Set warningmsg here, before the unimportant and output-specific | |
6807 * mesg2 has been appended. */ | |
6808 set_vim_var_string(VV_WARNINGMSG, tbuf, -1); | |
6809 #endif | |
7 | 6810 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG) |
6811 if (can_reload) | |
6812 { | |
6813 if (*mesg2 != NUL) | |
6814 { | |
6815 STRCAT(tbuf, "\n"); | |
6816 STRCAT(tbuf, mesg2); | |
6817 } | |
6818 if (do_dialog(VIM_WARNING, (char_u *)_("Warning"), tbuf, | |
6819 (char_u *)_("&OK\n&Load File"), 1, NULL) == 2) | |
6820 reload = TRUE; | |
6821 } | |
6822 else | |
6823 #endif | |
6824 if (State > NORMAL_BUSY || (State & CMDLINE) || already_warned) | |
6825 { | |
6826 if (*mesg2 != NUL) | |
6827 { | |
6828 STRCAT(tbuf, "; "); | |
6829 STRCAT(tbuf, mesg2); | |
6830 } | |
6831 EMSG(tbuf); | |
6832 retval = 2; | |
6833 } | |
6834 else | |
6835 { | |
8 | 6836 # ifdef FEAT_AUTOCMD |
7 | 6837 if (!autocmd_busy) |
8 | 6838 # endif |
7 | 6839 { |
6840 msg_start(); | |
6841 msg_puts_attr(tbuf, hl_attr(HLF_E) + MSG_HIST); | |
6842 if (*mesg2 != NUL) | |
6843 msg_puts_attr((char_u *)mesg2, | |
6844 hl_attr(HLF_W) + MSG_HIST); | |
6845 msg_clr_eos(); | |
6846 (void)msg_end(); | |
6847 if (emsg_silent == 0) | |
6848 { | |
6849 out_flush(); | |
8 | 6850 # ifdef FEAT_GUI |
7 | 6851 if (!focus) |
8 | 6852 # endif |
7 | 6853 /* give the user some time to think about it */ |
6854 ui_delay(1000L, TRUE); | |
6855 | |
6856 /* don't redraw and erase the message */ | |
6857 redraw_cmdline = FALSE; | |
6858 } | |
6859 } | |
6860 already_warned = TRUE; | |
6861 } | |
6862 | |
6863 vim_free(path); | |
6864 vim_free(tbuf); | |
6865 } | |
6866 } | |
6867 | |
6868 if (reload) | |
311 | 6869 /* Reload the buffer. */ |
628 | 6870 buf_reload(buf, orig_mode); |
7 | 6871 |
765 | 6872 #ifdef FEAT_AUTOCMD |
1620 | 6873 /* Trigger FileChangedShell when the file was changed in any way. */ |
6874 if (buf_valid(buf) && retval != 0) | |
765 | 6875 (void)apply_autocmds(EVENT_FILECHANGEDSHELLPOST, |
6876 buf->b_fname, buf->b_fname, FALSE, buf); | |
6877 #endif | |
7 | 6878 #ifdef FEAT_GUI |
6879 /* restore this in case an autocommand has set it; it would break | |
6880 * 'mousefocus' */ | |
6881 need_mouse_correct = save_mouse_correct; | |
6882 #endif | |
6883 | |
6884 return retval; | |
6885 } | |
6886 | |
311 | 6887 /* |
6888 * Reload a buffer that is already loaded. | |
6889 * Used when the file was changed outside of Vim. | |
628 | 6890 * "orig_mode" is buf->b_orig_mode before the need for reloading was detected. |
6891 * buf->b_orig_mode may have been reset already. | |
311 | 6892 */ |
6893 void | |
628 | 6894 buf_reload(buf, orig_mode) |
311 | 6895 buf_T *buf; |
628 | 6896 int orig_mode; |
311 | 6897 { |
6898 exarg_T ea; | |
6899 pos_T old_cursor; | |
6900 linenr_T old_topline; | |
6901 int old_ro = buf->b_p_ro; | |
6902 buf_T *savebuf; | |
6903 int saved = OK; | |
6904 aco_save_T aco; | |
6905 | |
6906 /* set curwin/curbuf for "buf" and save some things */ | |
6907 aucmd_prepbuf(&aco, buf); | |
6908 | |
6909 /* We only want to read the text from the file, not reset the syntax | |
6910 * highlighting, clear marks, diff status, etc. Force the fileformat | |
6911 * and encoding to be the same. */ | |
6912 if (prep_exarg(&ea, buf) == OK) | |
6913 { | |
6914 old_cursor = curwin->w_cursor; | |
6915 old_topline = curwin->w_topline; | |
6916 | |
6917 /* | |
6918 * To behave like when a new file is edited (matters for | |
6919 * BufReadPost autocommands) we first need to delete the current | |
6920 * buffer contents. But if reading the file fails we should keep | |
6921 * the old contents. Can't use memory only, the file might be | |
6922 * too big. Use a hidden buffer to move the buffer contents to. | |
6923 */ | |
6924 if (bufempty()) | |
6925 savebuf = NULL; | |
6926 else | |
6927 { | |
6928 /* Allocate a buffer without putting it in the buffer list. */ | |
6929 savebuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY); | |
837 | 6930 if (savebuf != NULL && buf == curbuf) |
311 | 6931 { |
6932 /* Open the memline. */ | |
6933 curbuf = savebuf; | |
6934 curwin->w_buffer = savebuf; | |
625 | 6935 saved = ml_open(curbuf); |
311 | 6936 curbuf = buf; |
6937 curwin->w_buffer = buf; | |
6938 } | |
837 | 6939 if (savebuf == NULL || saved == FAIL || buf != curbuf |
311 | 6940 || move_lines(buf, savebuf) == FAIL) |
6941 { | |
6942 EMSG2(_("E462: Could not prepare for reloading \"%s\""), | |
6943 buf->b_fname); | |
6944 saved = FAIL; | |
6945 } | |
6946 } | |
6947 | |
6948 if (saved == OK) | |
6949 { | |
6950 curbuf->b_flags |= BF_CHECK_RO; /* check for RO again */ | |
6951 #ifdef FEAT_AUTOCMD | |
6952 keep_filetype = TRUE; /* don't detect 'filetype' */ | |
6953 #endif | |
6954 if (readfile(buf->b_ffname, buf->b_fname, (linenr_T)0, | |
6955 (linenr_T)0, | |
6956 (linenr_T)MAXLNUM, &ea, READ_NEW) == FAIL) | |
6957 { | |
6958 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL) | |
6959 if (!aborting()) | |
6960 #endif | |
6961 EMSG2(_("E321: Could not reload \"%s\""), buf->b_fname); | |
837 | 6962 if (savebuf != NULL && buf_valid(savebuf) && buf == curbuf) |
311 | 6963 { |
6964 /* Put the text back from the save buffer. First | |
6965 * delete any lines that readfile() added. */ | |
6966 while (!bufempty()) | |
837 | 6967 if (ml_delete(buf->b_ml.ml_line_count, FALSE) == FAIL) |
311 | 6968 break; |
6969 (void)move_lines(savebuf, buf); | |
6970 } | |
6971 } | |
837 | 6972 else if (buf == curbuf) |
311 | 6973 { |
6974 /* Mark the buffer as unmodified and free undo info. */ | |
6975 unchanged(buf, TRUE); | |
6976 u_blockfree(buf); | |
6977 u_clearall(buf); | |
6978 } | |
6979 } | |
6980 vim_free(ea.cmd); | |
6981 | |
837 | 6982 if (savebuf != NULL && buf_valid(savebuf)) |
311 | 6983 wipe_buffer(savebuf, FALSE); |
6984 | |
6985 #ifdef FEAT_DIFF | |
6986 /* Invalidate diff info if necessary. */ | |
837 | 6987 diff_invalidate(curbuf); |
311 | 6988 #endif |
6989 | |
6990 /* Restore the topline and cursor position and check it (lines may | |
6991 * have been removed). */ | |
6992 if (old_topline > curbuf->b_ml.ml_line_count) | |
6993 curwin->w_topline = curbuf->b_ml.ml_line_count; | |
6994 else | |
6995 curwin->w_topline = old_topline; | |
6996 curwin->w_cursor = old_cursor; | |
6997 check_cursor(); | |
6998 update_topline(); | |
6999 #ifdef FEAT_AUTOCMD | |
7000 keep_filetype = FALSE; | |
7001 #endif | |
7002 #ifdef FEAT_FOLDING | |
7003 { | |
1863 | 7004 win_T *wp; |
7005 tabpage_T *tp; | |
311 | 7006 |
7007 /* Update folds unless they are defined manually. */ | |
1863 | 7008 FOR_ALL_TAB_WINDOWS(tp, wp) |
311 | 7009 if (wp->w_buffer == curwin->w_buffer |
7010 && !foldmethodIsManual(wp)) | |
7011 foldUpdateAll(wp); | |
7012 } | |
7013 #endif | |
7014 /* If the mode didn't change and 'readonly' was set, keep the old | |
7015 * value; the user probably used the ":view" command. But don't | |
7016 * reset it, might have had a read error. */ | |
7017 if (orig_mode == curbuf->b_orig_mode) | |
7018 curbuf->b_p_ro |= old_ro; | |
7019 } | |
7020 | |
7021 /* restore curwin/curbuf and a few other things */ | |
7022 aucmd_restbuf(&aco); | |
7023 /* Careful: autocommands may have made "buf" invalid! */ | |
7024 } | |
7025 | |
7 | 7026 void |
7027 buf_store_time(buf, st, fname) | |
7028 buf_T *buf; | |
7029 struct stat *st; | |
1877 | 7030 char_u *fname UNUSED; |
7 | 7031 { |
7032 buf->b_mtime = (long)st->st_mtime; | |
7033 buf->b_orig_size = (size_t)st->st_size; | |
7034 #ifdef HAVE_ST_MODE | |
7035 buf->b_orig_mode = (int)st->st_mode; | |
7036 #else | |
7037 buf->b_orig_mode = mch_getperm(fname); | |
7038 #endif | |
7039 } | |
7040 | |
7041 /* | |
7042 * Adjust the line with missing eol, used for the next write. | |
7043 * Used for do_filter(), when the input lines for the filter are deleted. | |
7044 */ | |
7045 void | |
7046 write_lnum_adjust(offset) | |
7047 linenr_T offset; | |
7048 { | |
167 | 7049 if (write_no_eol_lnum != 0) /* only if there is a missing eol */ |
7 | 7050 write_no_eol_lnum += offset; |
7051 } | |
7052 | |
7053 #if defined(TEMPDIRNAMES) || defined(PROTO) | |
7054 static long temp_count = 0; /* Temp filename counter. */ | |
7055 | |
7056 /* | |
7057 * Delete the temp directory and all files it contains. | |
7058 */ | |
7059 void | |
7060 vim_deltempdir() | |
7061 { | |
7062 char_u **files; | |
7063 int file_count; | |
7064 int i; | |
7065 | |
7066 if (vim_tempdir != NULL) | |
7067 { | |
7068 sprintf((char *)NameBuff, "%s*", vim_tempdir); | |
7069 if (gen_expand_wildcards(1, &NameBuff, &file_count, &files, | |
7070 EW_DIR|EW_FILE|EW_SILENT) == OK) | |
7071 { | |
7072 for (i = 0; i < file_count; ++i) | |
7073 mch_remove(files[i]); | |
7074 FreeWild(file_count, files); | |
7075 } | |
7076 gettail(NameBuff)[-1] = NUL; | |
7077 (void)mch_rmdir(NameBuff); | |
7078 | |
7079 vim_free(vim_tempdir); | |
7080 vim_tempdir = NULL; | |
7081 } | |
7082 } | |
7083 #endif | |
7084 | |
2006 | 7085 #ifdef TEMPDIRNAMES |
7 | 7086 /* |
1997 | 7087 * Directory "tempdir" was created. Expand this name to a full path and put |
7088 * it in "vim_tempdir". This avoids that using ":cd" would confuse us. | |
7089 * "tempdir" must be no longer than MAXPATHL. | |
7090 */ | |
7091 static void | |
7092 vim_settempdir(tempdir) | |
7093 char_u *tempdir; | |
7094 { | |
7095 char_u *buf; | |
7096 | |
7097 buf = alloc((unsigned)MAXPATHL + 2); | |
7098 if (buf != NULL) | |
7099 { | |
7100 if (vim_FullName(tempdir, buf, MAXPATHL, FALSE) == FAIL) | |
7101 STRCPY(buf, tempdir); | |
7102 # ifdef __EMX__ | |
7103 if (vim_strchr(buf, '/') != NULL) | |
7104 STRCAT(buf, "/"); | |
7105 else | |
7106 # endif | |
7107 add_pathsep(buf); | |
7108 vim_tempdir = vim_strsave(buf); | |
7109 vim_free(buf); | |
7110 } | |
7111 } | |
2006 | 7112 #endif |
1997 | 7113 |
7114 /* | |
7 | 7115 * vim_tempname(): Return a unique name that can be used for a temp file. |
7116 * | |
7117 * The temp file is NOT created. | |
7118 * | |
7119 * The returned pointer is to allocated memory. | |
7120 * The returned pointer is NULL if no valid name was found. | |
7121 */ | |
7122 char_u * | |
7123 vim_tempname(extra_char) | |
1877 | 7124 int extra_char UNUSED; /* char to use in the name instead of '?' */ |
7 | 7125 { |
7126 #ifdef USE_TMPNAM | |
7127 char_u itmp[L_tmpnam]; /* use tmpnam() */ | |
7128 #else | |
7129 char_u itmp[TEMPNAMELEN]; | |
7130 #endif | |
7131 | |
7132 #ifdef TEMPDIRNAMES | |
7133 static char *(tempdirs[]) = {TEMPDIRNAMES}; | |
7134 int i; | |
7135 # ifndef EEXIST | |
7136 struct stat st; | |
7137 # endif | |
7138 | |
7139 /* | |
7140 * This will create a directory for private use by this instance of Vim. | |
7141 * This is done once, and the same directory is used for all temp files. | |
7142 * This method avoids security problems because of symlink attacks et al. | |
7143 * It's also a bit faster, because we only need to check for an existing | |
7144 * file when creating the directory and not for each temp file. | |
7145 */ | |
7146 if (vim_tempdir == NULL) | |
7147 { | |
7148 /* | |
7149 * Try the entries in TEMPDIRNAMES to create the temp directory. | |
7150 */ | |
1877 | 7151 for (i = 0; i < (int)(sizeof(tempdirs) / sizeof(char *)); ++i) |
7 | 7152 { |
2047
85da03763130
updated for version 7.2.333
Bram Moolenaar <bram@zimbu.org>
parents:
2028
diff
changeset
|
7153 # ifndef HAVE_MKDTEMP |
1997 | 7154 size_t itmplen; |
7155 long nr; | |
7156 long off; | |
7157 # endif | |
7158 | |
7 | 7159 /* expand $TMP, leave room for "/v1100000/999999999" */ |
7160 expand_env((char_u *)tempdirs[i], itmp, TEMPNAMELEN - 20); | |
7161 if (mch_isdir(itmp)) /* directory exists */ | |
7162 { | |
7163 # ifdef __EMX__ | |
7164 /* If $TMP contains a forward slash (perhaps using bash or | |
7165 * tcsh), don't add a backslash, use a forward slash! | |
7166 * Adding 2 backslashes didn't work. */ | |
7167 if (vim_strchr(itmp, '/') != NULL) | |
7168 STRCAT(itmp, "/"); | |
7169 else | |
7170 # endif | |
7171 add_pathsep(itmp); | |
1997 | 7172 |
7173 # ifdef HAVE_MKDTEMP | |
7174 /* Leave room for filename */ | |
7175 STRCAT(itmp, "vXXXXXX"); | |
7176 if (mkdtemp((char *)itmp) != NULL) | |
7177 vim_settempdir(itmp); | |
7178 # else | |
7 | 7179 /* Get an arbitrary number of up to 6 digits. When it's |
7180 * unlikely that it already exists it will be faster, | |
7181 * otherwise it doesn't matter. The use of mkdir() avoids any | |
7182 * security problems because of the predictable number. */ | |
7183 nr = (mch_get_pid() + (long)time(NULL)) % 1000000L; | |
2047
85da03763130
updated for version 7.2.333
Bram Moolenaar <bram@zimbu.org>
parents:
2028
diff
changeset
|
7184 itmplen = STRLEN(itmp); |
7 | 7185 |
7186 /* Try up to 10000 different values until we find a name that | |
7187 * doesn't exist. */ | |
7188 for (off = 0; off < 10000L; ++off) | |
7189 { | |
7190 int r; | |
1997 | 7191 # if defined(UNIX) || defined(VMS) |
7 | 7192 mode_t umask_save; |
1997 | 7193 # endif |
7194 | |
7195 sprintf((char *)itmp + itmplen, "v%ld", nr + off); | |
7196 # ifndef EEXIST | |
7 | 7197 /* If mkdir() does not set errno to EEXIST, check for |
7198 * existing file here. There is a race condition then, | |
7199 * although it's fail-safe. */ | |
7200 if (mch_stat((char *)itmp, &st) >= 0) | |
7201 continue; | |
1997 | 7202 # endif |
7203 # if defined(UNIX) || defined(VMS) | |
7 | 7204 /* Make sure the umask doesn't remove the executable bit. |
7205 * "repl" has been reported to use "177". */ | |
7206 umask_save = umask(077); | |
1997 | 7207 # endif |
7 | 7208 r = vim_mkdir(itmp, 0700); |
1997 | 7209 # if defined(UNIX) || defined(VMS) |
7 | 7210 (void)umask(umask_save); |
1997 | 7211 # endif |
7 | 7212 if (r == 0) |
7213 { | |
1997 | 7214 vim_settempdir(itmp); |
7 | 7215 break; |
7216 } | |
1997 | 7217 # ifdef EEXIST |
7 | 7218 /* If the mkdir() didn't fail because the file/dir exists, |
7219 * we probably can't create any dir here, try another | |
7220 * place. */ | |
7221 if (errno != EEXIST) | |
1997 | 7222 # endif |
7 | 7223 break; |
7224 } | |
1997 | 7225 # endif /* HAVE_MKDTEMP */ |
7 | 7226 if (vim_tempdir != NULL) |
7227 break; | |
7228 } | |
7229 } | |
7230 } | |
7231 | |
7232 if (vim_tempdir != NULL) | |
7233 { | |
7234 /* There is no need to check if the file exists, because we own the | |
7235 * directory and nobody else creates a file in it. */ | |
7236 sprintf((char *)itmp, "%s%ld", vim_tempdir, temp_count++); | |
7237 return vim_strsave(itmp); | |
7238 } | |
7239 | |
7240 return NULL; | |
7241 | |
7242 #else /* TEMPDIRNAMES */ | |
7243 | |
7244 # ifdef WIN3264 | |
7245 char szTempFile[_MAX_PATH + 1]; | |
7246 char buf4[4]; | |
7247 char_u *retval; | |
7248 char_u *p; | |
7249 | |
7250 STRCPY(itmp, ""); | |
7251 if (GetTempPath(_MAX_PATH, szTempFile) == 0) | |
7252 szTempFile[0] = NUL; /* GetTempPath() failed, use current dir */ | |
7253 strcpy(buf4, "VIM"); | |
7254 buf4[2] = extra_char; /* make it "VIa", "VIb", etc. */ | |
7255 if (GetTempFileName(szTempFile, buf4, 0, itmp) == 0) | |
7256 return NULL; | |
7257 /* GetTempFileName() will create the file, we don't want that */ | |
7258 (void)DeleteFile(itmp); | |
7259 | |
7260 /* Backslashes in a temp file name cause problems when filtering with | |
7261 * "sh". NOTE: This also checks 'shellcmdflag' to help those people who | |
7262 * didn't set 'shellslash'. */ | |
7263 retval = vim_strsave(itmp); | |
7264 if (*p_shcf == '-' || p_ssl) | |
7265 for (p = retval; *p; ++p) | |
7266 if (*p == '\\') | |
7267 *p = '/'; | |
7268 return retval; | |
7269 | |
7270 # else /* WIN3264 */ | |
7271 | |
7272 # ifdef USE_TMPNAM | |
7273 /* tmpnam() will make its own name */ | |
7274 if (*tmpnam((char *)itmp) == NUL) | |
7275 return NULL; | |
7276 # else | |
7277 char_u *p; | |
7278 | |
7279 # ifdef VMS_TEMPNAM | |
7280 /* mktemp() is not working on VMS. It seems to be | |
7281 * a do-nothing function. Therefore we use tempnam(). | |
7282 */ | |
7283 sprintf((char *)itmp, "VIM%c", extra_char); | |
7284 p = (char_u *)tempnam("tmp:", (char *)itmp); | |
7285 if (p != NULL) | |
7286 { | |
7287 /* VMS will use '.LOG' if we don't explicitly specify an extension, | |
7288 * and VIM will then be unable to find the file later */ | |
7289 STRCPY(itmp, p); | |
7290 STRCAT(itmp, ".txt"); | |
7291 free(p); | |
7292 } | |
7293 else | |
7294 return NULL; | |
7295 # else | |
7296 STRCPY(itmp, TEMPNAME); | |
7297 if ((p = vim_strchr(itmp, '?')) != NULL) | |
7298 *p = extra_char; | |
7299 if (mktemp((char *)itmp) == NULL) | |
7300 return NULL; | |
7301 # endif | |
7302 # endif | |
7303 | |
7304 return vim_strsave(itmp); | |
7305 # endif /* WIN3264 */ | |
7306 #endif /* TEMPDIRNAMES */ | |
7307 } | |
7308 | |
7309 #if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) | |
7310 /* | |
7311 * Convert all backslashes in fname to forward slashes in-place. | |
7312 */ | |
7313 void | |
7314 forward_slash(fname) | |
7315 char_u *fname; | |
7316 { | |
7317 char_u *p; | |
7318 | |
7319 for (p = fname; *p != NUL; ++p) | |
7320 # ifdef FEAT_MBYTE | |
7321 /* The Big5 encoding can have '\' in the trail byte. */ | |
474 | 7322 if (enc_dbcs != 0 && (*mb_ptr2len)(p) > 1) |
7 | 7323 ++p; |
7324 else | |
7325 # endif | |
7326 if (*p == '\\') | |
7327 *p = '/'; | |
7328 } | |
7329 #endif | |
7330 | |
7331 | |
7332 /* | |
7333 * Code for automatic commands. | |
7334 * | |
7335 * Only included when "FEAT_AUTOCMD" has been defined. | |
7336 */ | |
7337 | |
7338 #if defined(FEAT_AUTOCMD) || defined(PROTO) | |
7339 | |
7340 /* | |
7341 * The autocommands are stored in a list for each event. | |
7342 * Autocommands for the same pattern, that are consecutive, are joined | |
7343 * together, to avoid having to match the pattern too often. | |
7344 * The result is an array of Autopat lists, which point to AutoCmd lists: | |
7345 * | |
7346 * first_autopat[0] --> Autopat.next --> Autopat.next --> NULL | |
7347 * Autopat.cmds Autopat.cmds | |
7348 * | | | |
7349 * V V | |
7350 * AutoCmd.next AutoCmd.next | |
7351 * | | | |
7352 * V V | |
7353 * AutoCmd.next NULL | |
7354 * | | |
7355 * V | |
7356 * NULL | |
7357 * | |
7358 * first_autopat[1] --> Autopat.next --> NULL | |
7359 * Autopat.cmds | |
7360 * | | |
7361 * V | |
7362 * AutoCmd.next | |
7363 * | | |
7364 * V | |
7365 * NULL | |
7366 * etc. | |
7367 * | |
7368 * The order of AutoCmds is important, this is the order in which they were | |
7369 * defined and will have to be executed. | |
7370 */ | |
7371 typedef struct AutoCmd | |
7372 { | |
7373 char_u *cmd; /* The command to be executed (NULL | |
7374 when command has been removed) */ | |
7375 char nested; /* If autocommands nest here */ | |
7376 char last; /* last command in list */ | |
7377 #ifdef FEAT_EVAL | |
7378 scid_T scriptID; /* script ID where defined */ | |
7379 #endif | |
7380 struct AutoCmd *next; /* Next AutoCmd in list */ | |
7381 } AutoCmd; | |
7382 | |
7383 typedef struct AutoPat | |
7384 { | |
7385 int group; /* group ID */ | |
7386 char_u *pat; /* pattern as typed (NULL when pattern | |
7387 has been removed) */ | |
7388 int patlen; /* strlen() of pat */ | |
153 | 7389 regprog_T *reg_prog; /* compiled regprog for pattern */ |
7 | 7390 char allow_dirs; /* Pattern may match whole path */ |
7391 char last; /* last pattern for apply_autocmds() */ | |
7392 AutoCmd *cmds; /* list of commands to do */ | |
7393 struct AutoPat *next; /* next AutoPat in AutoPat list */ | |
40 | 7394 int buflocal_nr; /* !=0 for buffer-local AutoPat */ |
7 | 7395 } AutoPat; |
7396 | |
7397 static struct event_name | |
7398 { | |
7399 char *name; /* event name */ | |
661 | 7400 event_T event; /* event number */ |
7 | 7401 } event_names[] = |
7402 { | |
7403 {"BufAdd", EVENT_BUFADD}, | |
7404 {"BufCreate", EVENT_BUFADD}, | |
7405 {"BufDelete", EVENT_BUFDELETE}, | |
7406 {"BufEnter", EVENT_BUFENTER}, | |
7407 {"BufFilePost", EVENT_BUFFILEPOST}, | |
7408 {"BufFilePre", EVENT_BUFFILEPRE}, | |
7409 {"BufHidden", EVENT_BUFHIDDEN}, | |
7410 {"BufLeave", EVENT_BUFLEAVE}, | |
7411 {"BufNew", EVENT_BUFNEW}, | |
7412 {"BufNewFile", EVENT_BUFNEWFILE}, | |
7413 {"BufRead", EVENT_BUFREADPOST}, | |
7414 {"BufReadCmd", EVENT_BUFREADCMD}, | |
7415 {"BufReadPost", EVENT_BUFREADPOST}, | |
7416 {"BufReadPre", EVENT_BUFREADPRE}, | |
7417 {"BufUnload", EVENT_BUFUNLOAD}, | |
7418 {"BufWinEnter", EVENT_BUFWINENTER}, | |
7419 {"BufWinLeave", EVENT_BUFWINLEAVE}, | |
7420 {"BufWipeout", EVENT_BUFWIPEOUT}, | |
7421 {"BufWrite", EVENT_BUFWRITEPRE}, | |
7422 {"BufWritePost", EVENT_BUFWRITEPOST}, | |
7423 {"BufWritePre", EVENT_BUFWRITEPRE}, | |
7424 {"BufWriteCmd", EVENT_BUFWRITECMD}, | |
7425 {"CmdwinEnter", EVENT_CMDWINENTER}, | |
7426 {"CmdwinLeave", EVENT_CMDWINLEAVE}, | |
12 | 7427 {"ColorScheme", EVENT_COLORSCHEME}, |
661 | 7428 {"CursorHold", EVENT_CURSORHOLD}, |
7429 {"CursorHoldI", EVENT_CURSORHOLDI}, | |
7430 {"CursorMoved", EVENT_CURSORMOVED}, | |
7431 {"CursorMovedI", EVENT_CURSORMOVEDI}, | |
7 | 7432 {"EncodingChanged", EVENT_ENCODINGCHANGED}, |
7433 {"FileEncoding", EVENT_ENCODINGCHANGED}, | |
7434 {"FileAppendPost", EVENT_FILEAPPENDPOST}, | |
7435 {"FileAppendPre", EVENT_FILEAPPENDPRE}, | |
7436 {"FileAppendCmd", EVENT_FILEAPPENDCMD}, | |
7437 {"FileChangedShell",EVENT_FILECHANGEDSHELL}, | |
765 | 7438 {"FileChangedShellPost",EVENT_FILECHANGEDSHELLPOST}, |
7 | 7439 {"FileChangedRO", EVENT_FILECHANGEDRO}, |
7440 {"FileReadPost", EVENT_FILEREADPOST}, | |
7441 {"FileReadPre", EVENT_FILEREADPRE}, | |
7442 {"FileReadCmd", EVENT_FILEREADCMD}, | |
7443 {"FileType", EVENT_FILETYPE}, | |
7444 {"FileWritePost", EVENT_FILEWRITEPOST}, | |
7445 {"FileWritePre", EVENT_FILEWRITEPRE}, | |
7446 {"FileWriteCmd", EVENT_FILEWRITECMD}, | |
7447 {"FilterReadPost", EVENT_FILTERREADPOST}, | |
7448 {"FilterReadPre", EVENT_FILTERREADPRE}, | |
7449 {"FilterWritePost", EVENT_FILTERWRITEPOST}, | |
7450 {"FilterWritePre", EVENT_FILTERWRITEPRE}, | |
7451 {"FocusGained", EVENT_FOCUSGAINED}, | |
7452 {"FocusLost", EVENT_FOCUSLOST}, | |
7453 {"FuncUndefined", EVENT_FUNCUNDEFINED}, | |
7454 {"GUIEnter", EVENT_GUIENTER}, | |
946 | 7455 {"GUIFailed", EVENT_GUIFAILED}, |
11 | 7456 {"InsertChange", EVENT_INSERTCHANGE}, |
7457 {"InsertEnter", EVENT_INSERTENTER}, | |
7458 {"InsertLeave", EVENT_INSERTLEAVE}, | |
434 | 7459 {"MenuPopup", EVENT_MENUPOPUP}, |
161 | 7460 {"QuickFixCmdPost", EVENT_QUICKFIXCMDPOST}, |
7461 {"QuickFixCmdPre", EVENT_QUICKFIXCMDPRE}, | |
7 | 7462 {"RemoteReply", EVENT_REMOTEREPLY}, |
574 | 7463 {"SessionLoadPost", EVENT_SESSIONLOADPOST}, |
723 | 7464 {"ShellCmdPost", EVENT_SHELLCMDPOST}, |
7465 {"ShellFilterPost", EVENT_SHELLFILTERPOST}, | |
715 | 7466 {"SourcePre", EVENT_SOURCEPRE}, |
1061 | 7467 {"SourceCmd", EVENT_SOURCECMD}, |
649 | 7468 {"SpellFileMissing",EVENT_SPELLFILEMISSING}, |
7 | 7469 {"StdinReadPost", EVENT_STDINREADPOST}, |
7470 {"StdinReadPre", EVENT_STDINREADPRE}, | |
674 | 7471 {"SwapExists", EVENT_SWAPEXISTS}, |
7 | 7472 {"Syntax", EVENT_SYNTAX}, |
676 | 7473 {"TabEnter", EVENT_TABENTER}, |
7474 {"TabLeave", EVENT_TABLEAVE}, | |
7 | 7475 {"TermChanged", EVENT_TERMCHANGED}, |
7476 {"TermResponse", EVENT_TERMRESPONSE}, | |
7477 {"User", EVENT_USER}, | |
7478 {"VimEnter", EVENT_VIMENTER}, | |
7479 {"VimLeave", EVENT_VIMLEAVE}, | |
7480 {"VimLeavePre", EVENT_VIMLEAVEPRE}, | |
7481 {"WinEnter", EVENT_WINENTER}, | |
7482 {"WinLeave", EVENT_WINLEAVE}, | |
765 | 7483 {"VimResized", EVENT_VIMRESIZED}, |
661 | 7484 {NULL, (event_T)0} |
7 | 7485 }; |
7486 | |
7487 static AutoPat *first_autopat[NUM_EVENTS] = | |
7488 { | |
7489 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
7490 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
7491 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
7492 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
18 | 7493 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
7494 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL | |
7 | 7495 }; |
7496 | |
7497 /* | |
7498 * struct used to keep status while executing autocommands for an event. | |
7499 */ | |
7500 typedef struct AutoPatCmd | |
7501 { | |
7502 AutoPat *curpat; /* next AutoPat to examine */ | |
7503 AutoCmd *nextcmd; /* next AutoCmd to execute */ | |
7504 int group; /* group being used */ | |
7505 char_u *fname; /* fname to match with */ | |
7506 char_u *sfname; /* sfname to match with */ | |
7507 char_u *tail; /* tail of fname */ | |
661 | 7508 event_T event; /* current event */ |
40 | 7509 int arg_bufnr; /* initially equal to <abuf>, set to zero when |
7510 buf is deleted */ | |
7511 struct AutoPatCmd *next; /* chain of active apc-s for auto-invalidation*/ | |
7 | 7512 } AutoPatCmd; |
7513 | |
297 | 7514 static AutoPatCmd *active_apc_list = NULL; /* stack of active autocommands */ |
40 | 7515 |
7 | 7516 /* |
7517 * augroups stores a list of autocmd group names. | |
7518 */ | |
297 | 7519 static garray_T augroups = {0, 0, sizeof(char_u *), 10, NULL}; |
7 | 7520 #define AUGROUP_NAME(i) (((char_u **)augroups.ga_data)[i]) |
7521 | |
7522 /* | |
7523 * The ID of the current group. Group 0 is the default one. | |
7524 */ | |
7525 static int current_augroup = AUGROUP_DEFAULT; | |
7526 | |
7527 static int au_need_clean = FALSE; /* need to delete marked patterns */ | |
7528 | |
661 | 7529 static void show_autocmd __ARGS((AutoPat *ap, event_T event)); |
7 | 7530 static void au_remove_pat __ARGS((AutoPat *ap)); |
7531 static void au_remove_cmds __ARGS((AutoPat *ap)); | |
7532 static void au_cleanup __ARGS((void)); | |
7533 static int au_new_group __ARGS((char_u *name)); | |
7534 static void au_del_group __ARGS((char_u *name)); | |
661 | 7535 static event_T event_name2nr __ARGS((char_u *start, char_u **end)); |
7536 static char_u *event_nr2name __ARGS((event_T event)); | |
7 | 7537 static char_u *find_end_event __ARGS((char_u *arg, int have_group)); |
661 | 7538 static int event_ignored __ARGS((event_T event)); |
7 | 7539 static int au_get_grouparg __ARGS((char_u **argp)); |
661 | 7540 static int do_autocmd_event __ARGS((event_T event, char_u *pat, int nested, char_u *cmd, int forceit, int group)); |
7 | 7541 static char_u *getnextac __ARGS((int c, void *cookie, int indent)); |
661 | 7542 static int apply_autocmds_group __ARGS((event_T event, char_u *fname, char_u *fname_io, int force, int group, buf_T *buf, exarg_T *eap)); |
7 | 7543 static void auto_next_pat __ARGS((AutoPatCmd *apc, int stop_at_last)); |
7544 | |
40 | 7545 |
661 | 7546 static event_T last_event; |
7 | 7547 static int last_group; |
1410 | 7548 static int autocmd_blocked = 0; /* block all autocmds */ |
7 | 7549 |
7550 /* | |
7551 * Show the autocommands for one AutoPat. | |
7552 */ | |
7553 static void | |
7554 show_autocmd(ap, event) | |
7555 AutoPat *ap; | |
661 | 7556 event_T event; |
7 | 7557 { |
7558 AutoCmd *ac; | |
7559 | |
7560 /* Check for "got_int" (here and at various places below), which is set | |
7561 * when "q" has been hit for the "--more--" prompt */ | |
7562 if (got_int) | |
7563 return; | |
7564 if (ap->pat == NULL) /* pattern has been removed */ | |
7565 return; | |
7566 | |
7567 msg_putchar('\n'); | |
7568 if (got_int) | |
7569 return; | |
7570 if (event != last_event || ap->group != last_group) | |
7571 { | |
7572 if (ap->group != AUGROUP_DEFAULT) | |
7573 { | |
7574 if (AUGROUP_NAME(ap->group) == NULL) | |
7575 msg_puts_attr((char_u *)_("--Deleted--"), hl_attr(HLF_E)); | |
7576 else | |
7577 msg_puts_attr(AUGROUP_NAME(ap->group), hl_attr(HLF_T)); | |
7578 msg_puts((char_u *)" "); | |
7579 } | |
7580 msg_puts_attr(event_nr2name(event), hl_attr(HLF_T)); | |
7581 last_event = event; | |
7582 last_group = ap->group; | |
7583 msg_putchar('\n'); | |
7584 if (got_int) | |
7585 return; | |
7586 } | |
7587 msg_col = 4; | |
7588 msg_outtrans(ap->pat); | |
7589 | |
7590 for (ac = ap->cmds; ac != NULL; ac = ac->next) | |
7591 { | |
7592 if (ac->cmd != NULL) /* skip removed commands */ | |
7593 { | |
7594 if (msg_col >= 14) | |
7595 msg_putchar('\n'); | |
7596 msg_col = 14; | |
7597 if (got_int) | |
7598 return; | |
7599 msg_outtrans(ac->cmd); | |
500 | 7600 #ifdef FEAT_EVAL |
7601 if (p_verbose > 0) | |
7602 last_set_msg(ac->scriptID); | |
7603 #endif | |
7 | 7604 if (got_int) |
7605 return; | |
7606 if (ac->next != NULL) | |
7607 { | |
7608 msg_putchar('\n'); | |
7609 if (got_int) | |
7610 return; | |
7611 } | |
7612 } | |
7613 } | |
7614 } | |
7615 | |
7616 /* | |
7617 * Mark an autocommand pattern for deletion. | |
7618 */ | |
7619 static void | |
7620 au_remove_pat(ap) | |
7621 AutoPat *ap; | |
7622 { | |
7623 vim_free(ap->pat); | |
7624 ap->pat = NULL; | |
40 | 7625 ap->buflocal_nr = -1; |
7 | 7626 au_need_clean = TRUE; |
7627 } | |
7628 | |
7629 /* | |
7630 * Mark all commands for a pattern for deletion. | |
7631 */ | |
7632 static void | |
7633 au_remove_cmds(ap) | |
7634 AutoPat *ap; | |
7635 { | |
7636 AutoCmd *ac; | |
7637 | |
7638 for (ac = ap->cmds; ac != NULL; ac = ac->next) | |
7639 { | |
7640 vim_free(ac->cmd); | |
7641 ac->cmd = NULL; | |
7642 } | |
7643 au_need_clean = TRUE; | |
7644 } | |
7645 | |
7646 /* | |
7647 * Cleanup autocommands and patterns that have been deleted. | |
7648 * This is only done when not executing autocommands. | |
7649 */ | |
7650 static void | |
7651 au_cleanup() | |
7652 { | |
7653 AutoPat *ap, **prev_ap; | |
7654 AutoCmd *ac, **prev_ac; | |
661 | 7655 event_T event; |
7 | 7656 |
7657 if (autocmd_busy || !au_need_clean) | |
7658 return; | |
7659 | |
7660 /* loop over all events */ | |
661 | 7661 for (event = (event_T)0; (int)event < (int)NUM_EVENTS; |
7662 event = (event_T)((int)event + 1)) | |
7 | 7663 { |
7664 /* loop over all autocommand patterns */ | |
7665 prev_ap = &(first_autopat[(int)event]); | |
7666 for (ap = *prev_ap; ap != NULL; ap = *prev_ap) | |
7667 { | |
7668 /* loop over all commands for this pattern */ | |
7669 prev_ac = &(ap->cmds); | |
7670 for (ac = *prev_ac; ac != NULL; ac = *prev_ac) | |
7671 { | |
7672 /* remove the command if the pattern is to be deleted or when | |
7673 * the command has been marked for deletion */ | |
7674 if (ap->pat == NULL || ac->cmd == NULL) | |
7675 { | |
7676 *prev_ac = ac->next; | |
7677 vim_free(ac->cmd); | |
7678 vim_free(ac); | |
7679 } | |
7680 else | |
7681 prev_ac = &(ac->next); | |
7682 } | |
7683 | |
7684 /* remove the pattern if it has been marked for deletion */ | |
7685 if (ap->pat == NULL) | |
7686 { | |
7687 *prev_ap = ap->next; | |
153 | 7688 vim_free(ap->reg_prog); |
7 | 7689 vim_free(ap); |
7690 } | |
7691 else | |
7692 prev_ap = &(ap->next); | |
7693 } | |
7694 } | |
7695 | |
7696 au_need_clean = FALSE; | |
7697 } | |
7698 | |
7699 /* | |
40 | 7700 * Called when buffer is freed, to remove/invalidate related buffer-local |
7701 * autocmds. | |
7702 */ | |
7703 void | |
7704 aubuflocal_remove(buf) | |
7705 buf_T *buf; | |
7706 { | |
7707 AutoPat *ap; | |
661 | 7708 event_T event; |
40 | 7709 AutoPatCmd *apc; |
7710 | |
7711 /* invalidate currently executing autocommands */ | |
7712 for (apc = active_apc_list; apc; apc = apc->next) | |
7713 if (buf->b_fnum == apc->arg_bufnr) | |
7714 apc->arg_bufnr = 0; | |
7715 | |
7716 /* invalidate buflocals looping through events */ | |
661 | 7717 for (event = (event_T)0; (int)event < (int)NUM_EVENTS; |
7718 event = (event_T)((int)event + 1)) | |
40 | 7719 /* loop over all autocommand patterns */ |
7720 for (ap = first_autopat[(int)event]; ap != NULL; ap = ap->next) | |
7721 if (ap->buflocal_nr == buf->b_fnum) | |
7722 { | |
7723 au_remove_pat(ap); | |
7724 if (p_verbose >= 6) | |
292 | 7725 { |
7726 verbose_enter(); | |
40 | 7727 smsg((char_u *) |
7728 _("auto-removing autocommand: %s <buffer=%d>"), | |
7729 event_nr2name(event), buf->b_fnum); | |
292 | 7730 verbose_leave(); |
7731 } | |
40 | 7732 } |
7733 au_cleanup(); | |
7734 } | |
7735 | |
7736 /* | |
7 | 7737 * Add an autocmd group name. |
7738 * Return it's ID. Returns AUGROUP_ERROR (< 0) for error. | |
7739 */ | |
7740 static int | |
7741 au_new_group(name) | |
7742 char_u *name; | |
7743 { | |
7744 int i; | |
7745 | |
7746 i = au_find_group(name); | |
7747 if (i == AUGROUP_ERROR) /* the group doesn't exist yet, add it */ | |
7748 { | |
7749 /* First try using a free entry. */ | |
7750 for (i = 0; i < augroups.ga_len; ++i) | |
7751 if (AUGROUP_NAME(i) == NULL) | |
7752 break; | |
7753 if (i == augroups.ga_len && ga_grow(&augroups, 1) == FAIL) | |
7754 return AUGROUP_ERROR; | |
7755 | |
7756 AUGROUP_NAME(i) = vim_strsave(name); | |
7757 if (AUGROUP_NAME(i) == NULL) | |
7758 return AUGROUP_ERROR; | |
7759 if (i == augroups.ga_len) | |
7760 ++augroups.ga_len; | |
7761 } | |
7762 | |
7763 return i; | |
7764 } | |
7765 | |
7766 static void | |
7767 au_del_group(name) | |
7768 char_u *name; | |
7769 { | |
7770 int i; | |
7771 | |
7772 i = au_find_group(name); | |
7773 if (i == AUGROUP_ERROR) /* the group doesn't exist */ | |
7774 EMSG2(_("E367: No such group: \"%s\""), name); | |
7775 else | |
7776 { | |
7777 vim_free(AUGROUP_NAME(i)); | |
7778 AUGROUP_NAME(i) = NULL; | |
7779 } | |
7780 } | |
7781 | |
7782 /* | |
7783 * Find the ID of an autocmd group name. | |
7784 * Return it's ID. Returns AUGROUP_ERROR (< 0) for error. | |
7785 */ | |
7786 static int | |
7787 au_find_group(name) | |
7788 char_u *name; | |
7789 { | |
7790 int i; | |
7791 | |
7792 for (i = 0; i < augroups.ga_len; ++i) | |
7793 if (AUGROUP_NAME(i) != NULL && STRCMP(AUGROUP_NAME(i), name) == 0) | |
7794 return i; | |
7795 return AUGROUP_ERROR; | |
7796 } | |
7797 | |
461 | 7798 /* |
7799 * Return TRUE if augroup "name" exists. | |
7800 */ | |
7801 int | |
7802 au_has_group(name) | |
7803 char_u *name; | |
7804 { | |
7805 return au_find_group(name) != AUGROUP_ERROR; | |
7806 } | |
7807 | |
7 | 7808 /* |
7809 * ":augroup {name}". | |
7810 */ | |
7811 void | |
7812 do_augroup(arg, del_group) | |
7813 char_u *arg; | |
7814 int del_group; | |
7815 { | |
7816 int i; | |
7817 | |
7818 if (del_group) | |
7819 { | |
7820 if (*arg == NUL) | |
7821 EMSG(_(e_argreq)); | |
7822 else | |
7823 au_del_group(arg); | |
7824 } | |
7825 else if (STRICMP(arg, "end") == 0) /* ":aug end": back to group 0 */ | |
7826 current_augroup = AUGROUP_DEFAULT; | |
7827 else if (*arg) /* ":aug xxx": switch to group xxx */ | |
7828 { | |
7829 i = au_new_group(arg); | |
7830 if (i != AUGROUP_ERROR) | |
7831 current_augroup = i; | |
7832 } | |
7833 else /* ":aug": list the group names */ | |
7834 { | |
7835 msg_start(); | |
7836 for (i = 0; i < augroups.ga_len; ++i) | |
7837 { | |
7838 if (AUGROUP_NAME(i) != NULL) | |
7839 { | |
7840 msg_puts(AUGROUP_NAME(i)); | |
7841 msg_puts((char_u *)" "); | |
7842 } | |
7843 } | |
7844 msg_clr_eos(); | |
7845 msg_end(); | |
7846 } | |
7847 } | |
7848 | |
355 | 7849 #if defined(EXITFREE) || defined(PROTO) |
7850 void | |
7851 free_all_autocmds() | |
7852 { | |
7853 for (current_augroup = -1; current_augroup < augroups.ga_len; | |
7854 ++current_augroup) | |
7855 do_autocmd((char_u *)"", TRUE); | |
7856 ga_clear_strings(&augroups); | |
7857 } | |
7858 #endif | |
7859 | |
7 | 7860 /* |
7861 * Return the event number for event name "start". | |
7862 * Return NUM_EVENTS if the event name was not found. | |
7863 * Return a pointer to the next event name in "end". | |
7864 */ | |
661 | 7865 static event_T |
7 | 7866 event_name2nr(start, end) |
7867 char_u *start; | |
7868 char_u **end; | |
7869 { | |
7870 char_u *p; | |
7871 int i; | |
7872 int len; | |
7873 | |
7874 /* the event name ends with end of line, a blank or a comma */ | |
7875 for (p = start; *p && !vim_iswhite(*p) && *p != ','; ++p) | |
7876 ; | |
7877 for (i = 0; event_names[i].name != NULL; ++i) | |
7878 { | |
7879 len = (int)STRLEN(event_names[i].name); | |
7880 if (len == p - start && STRNICMP(event_names[i].name, start, len) == 0) | |
7881 break; | |
7882 } | |
7883 if (*p == ',') | |
7884 ++p; | |
7885 *end = p; | |
7886 if (event_names[i].name == NULL) | |
7887 return NUM_EVENTS; | |
7888 return event_names[i].event; | |
7889 } | |
7890 | |
7891 /* | |
7892 * Return the name for event "event". | |
7893 */ | |
7894 static char_u * | |
7895 event_nr2name(event) | |
661 | 7896 event_T event; |
7 | 7897 { |
7898 int i; | |
7899 | |
7900 for (i = 0; event_names[i].name != NULL; ++i) | |
7901 if (event_names[i].event == event) | |
7902 return (char_u *)event_names[i].name; | |
7903 return (char_u *)"Unknown"; | |
7904 } | |
7905 | |
7906 /* | |
7907 * Scan over the events. "*" stands for all events. | |
7908 */ | |
7909 static char_u * | |
7910 find_end_event(arg, have_group) | |
7911 char_u *arg; | |
7912 int have_group; /* TRUE when group name was found */ | |
7913 { | |
7914 char_u *pat; | |
7915 char_u *p; | |
7916 | |
7917 if (*arg == '*') | |
7918 { | |
7919 if (arg[1] && !vim_iswhite(arg[1])) | |
7920 { | |
7921 EMSG2(_("E215: Illegal character after *: %s"), arg); | |
7922 return NULL; | |
7923 } | |
7924 pat = arg + 1; | |
7925 } | |
7926 else | |
7927 { | |
7928 for (pat = arg; *pat && !vim_iswhite(*pat); pat = p) | |
7929 { | |
7930 if ((int)event_name2nr(pat, &p) >= (int)NUM_EVENTS) | |
7931 { | |
7932 if (have_group) | |
7933 EMSG2(_("E216: No such event: %s"), pat); | |
7934 else | |
7935 EMSG2(_("E216: No such group or event: %s"), pat); | |
7936 return NULL; | |
7937 } | |
7938 } | |
7939 } | |
7940 return pat; | |
7941 } | |
7942 | |
7943 /* | |
7944 * Return TRUE if "event" is included in 'eventignore'. | |
7945 */ | |
7946 static int | |
7947 event_ignored(event) | |
661 | 7948 event_T event; |
7 | 7949 { |
7950 char_u *p = p_ei; | |
7951 | |
844 | 7952 while (*p != NUL) |
7953 { | |
7954 if (STRNICMP(p, "all", 3) == 0 && (p[3] == NUL || p[3] == ',')) | |
7955 return TRUE; | |
7 | 7956 if (event_name2nr(p, &p) == event) |
7957 return TRUE; | |
844 | 7958 } |
7 | 7959 |
7960 return FALSE; | |
7961 } | |
7962 | |
7963 /* | |
7964 * Return OK when the contents of p_ei is valid, FAIL otherwise. | |
7965 */ | |
7966 int | |
7967 check_ei() | |
7968 { | |
7969 char_u *p = p_ei; | |
7970 | |
7971 while (*p) | |
844 | 7972 { |
7973 if (STRNICMP(p, "all", 3) == 0 && (p[3] == NUL || p[3] == ',')) | |
7974 { | |
7975 p += 3; | |
7976 if (*p == ',') | |
7977 ++p; | |
7978 } | |
7979 else if (event_name2nr(p, &p) == NUM_EVENTS) | |
7 | 7980 return FAIL; |
844 | 7981 } |
7 | 7982 |
7983 return OK; | |
7984 } | |
7985 | |
123 | 7986 # if defined(FEAT_SYN_HL) || defined(PROTO) |
7987 | |
7988 /* | |
7989 * Add "what" to 'eventignore' to skip loading syntax highlighting for every | |
7990 * buffer loaded into the window. "what" must start with a comma. | |
7991 * Returns the old value of 'eventignore' in allocated memory. | |
7992 */ | |
7993 char_u * | |
7994 au_event_disable(what) | |
7995 char *what; | |
7996 { | |
7997 char_u *new_ei; | |
7998 char_u *save_ei; | |
7999 | |
8000 save_ei = vim_strsave(p_ei); | |
8001 if (save_ei != NULL) | |
8002 { | |
557 | 8003 new_ei = vim_strnsave(p_ei, (int)(STRLEN(p_ei) + STRLEN(what))); |
123 | 8004 if (new_ei != NULL) |
8005 { | |
2095
8aa3cd045aef
updated for version 7.2.379
Bram Moolenaar <bram@zimbu.org>
parents:
2047
diff
changeset
|
8006 if (*what == ',' && *p_ei == NUL) |
8aa3cd045aef
updated for version 7.2.379
Bram Moolenaar <bram@zimbu.org>
parents:
2047
diff
changeset
|
8007 STRCPY(new_ei, what + 1); |
8aa3cd045aef
updated for version 7.2.379
Bram Moolenaar <bram@zimbu.org>
parents:
2047
diff
changeset
|
8008 else |
8aa3cd045aef
updated for version 7.2.379
Bram Moolenaar <bram@zimbu.org>
parents:
2047
diff
changeset
|
8009 STRCAT(new_ei, what); |
694 | 8010 set_string_option_direct((char_u *)"ei", -1, new_ei, |
8011 OPT_FREE, SID_NONE); | |
123 | 8012 vim_free(new_ei); |
8013 } | |
8014 } | |
8015 return save_ei; | |
8016 } | |
8017 | |
8018 void | |
8019 au_event_restore(old_ei) | |
8020 char_u *old_ei; | |
8021 { | |
8022 if (old_ei != NULL) | |
8023 { | |
694 | 8024 set_string_option_direct((char_u *)"ei", -1, old_ei, |
8025 OPT_FREE, SID_NONE); | |
123 | 8026 vim_free(old_ei); |
8027 } | |
8028 } | |
8029 # endif /* FEAT_SYN_HL */ | |
8030 | |
7 | 8031 /* |
8032 * do_autocmd() -- implements the :autocmd command. Can be used in the | |
8033 * following ways: | |
8034 * | |
8035 * :autocmd <event> <pat> <cmd> Add <cmd> to the list of commands that | |
8036 * will be automatically executed for <event> | |
8037 * when editing a file matching <pat>, in | |
8038 * the current group. | |
8039 * :autocmd <event> <pat> Show the auto-commands associated with | |
8040 * <event> and <pat>. | |
8041 * :autocmd <event> Show the auto-commands associated with | |
8042 * <event>. | |
8043 * :autocmd Show all auto-commands. | |
8044 * :autocmd! <event> <pat> <cmd> Remove all auto-commands associated with | |
8045 * <event> and <pat>, and add the command | |
8046 * <cmd>, for the current group. | |
8047 * :autocmd! <event> <pat> Remove all auto-commands associated with | |
8048 * <event> and <pat> for the current group. | |
8049 * :autocmd! <event> Remove all auto-commands associated with | |
8050 * <event> for the current group. | |
8051 * :autocmd! Remove ALL auto-commands for the current | |
8052 * group. | |
8053 * | |
8054 * Multiple events and patterns may be given separated by commas. Here are | |
8055 * some examples: | |
8056 * :autocmd bufread,bufenter *.c,*.h set tw=0 smartindent noic | |
8057 * :autocmd bufleave * set tw=79 nosmartindent ic infercase | |
8058 * | |
8059 * :autocmd * *.c show all autocommands for *.c files. | |
609 | 8060 * |
8061 * Mostly a {group} argument can optionally appear before <event>. | |
7 | 8062 */ |
8063 void | |
8064 do_autocmd(arg, forceit) | |
8065 char_u *arg; | |
8066 int forceit; | |
8067 { | |
8068 char_u *pat; | |
8069 char_u *envpat = NULL; | |
8070 char_u *cmd; | |
661 | 8071 event_T event; |
7 | 8072 int need_free = FALSE; |
8073 int nested = FALSE; | |
8074 int group; | |
8075 | |
8076 /* | |
8077 * Check for a legal group name. If not, use AUGROUP_ALL. | |
8078 */ | |
8079 group = au_get_grouparg(&arg); | |
8080 if (arg == NULL) /* out of memory */ | |
8081 return; | |
8082 | |
8083 /* | |
8084 * Scan over the events. | |
8085 * If we find an illegal name, return here, don't do anything. | |
8086 */ | |
8087 pat = find_end_event(arg, group != AUGROUP_ALL); | |
8088 if (pat == NULL) | |
8089 return; | |
8090 | |
8091 /* | |
8092 * Scan over the pattern. Put a NUL at the end. | |
8093 */ | |
8094 pat = skipwhite(pat); | |
8095 cmd = pat; | |
8096 while (*cmd && (!vim_iswhite(*cmd) || cmd[-1] == '\\')) | |
8097 cmd++; | |
8098 if (*cmd) | |
8099 *cmd++ = NUL; | |
8100 | |
8101 /* Expand environment variables in the pattern. Set 'shellslash', we want | |
8102 * forward slashes here. */ | |
8103 if (vim_strchr(pat, '$') != NULL || vim_strchr(pat, '~') != NULL) | |
8104 { | |
8105 #ifdef BACKSLASH_IN_FILENAME | |
8106 int p_ssl_save = p_ssl; | |
8107 | |
8108 p_ssl = TRUE; | |
8109 #endif | |
8110 envpat = expand_env_save(pat); | |
8111 #ifdef BACKSLASH_IN_FILENAME | |
8112 p_ssl = p_ssl_save; | |
8113 #endif | |
8114 if (envpat != NULL) | |
8115 pat = envpat; | |
8116 } | |
8117 | |
8118 /* | |
8119 * Check for "nested" flag. | |
8120 */ | |
8121 cmd = skipwhite(cmd); | |
8122 if (*cmd != NUL && STRNCMP(cmd, "nested", 6) == 0 && vim_iswhite(cmd[6])) | |
8123 { | |
8124 nested = TRUE; | |
8125 cmd = skipwhite(cmd + 6); | |
8126 } | |
8127 | |
8128 /* | |
8129 * Find the start of the commands. | |
8130 * Expand <sfile> in it. | |
8131 */ | |
8132 if (*cmd != NUL) | |
8133 { | |
8134 cmd = expand_sfile(cmd); | |
8135 if (cmd == NULL) /* some error */ | |
8136 return; | |
8137 need_free = TRUE; | |
8138 } | |
8139 | |
8140 /* | |
8141 * Print header when showing autocommands. | |
8142 */ | |
8143 if (!forceit && *cmd == NUL) | |
8144 { | |
8145 /* Highlight title */ | |
8146 MSG_PUTS_TITLE(_("\n--- Auto-Commands ---")); | |
8147 } | |
8148 | |
8149 /* | |
8150 * Loop over the events. | |
8151 */ | |
661 | 8152 last_event = (event_T)-1; /* for listing the event name */ |
7 | 8153 last_group = AUGROUP_ERROR; /* for listing the group name */ |
8154 if (*arg == '*' || *arg == NUL) | |
8155 { | |
661 | 8156 for (event = (event_T)0; (int)event < (int)NUM_EVENTS; |
8157 event = (event_T)((int)event + 1)) | |
7 | 8158 if (do_autocmd_event(event, pat, |
8159 nested, cmd, forceit, group) == FAIL) | |
8160 break; | |
8161 } | |
8162 else | |
8163 { | |
8164 while (*arg && !vim_iswhite(*arg)) | |
8165 if (do_autocmd_event(event_name2nr(arg, &arg), pat, | |
8166 nested, cmd, forceit, group) == FAIL) | |
8167 break; | |
8168 } | |
8169 | |
8170 if (need_free) | |
8171 vim_free(cmd); | |
8172 vim_free(envpat); | |
8173 } | |
8174 | |
8175 /* | |
8176 * Find the group ID in a ":autocmd" or ":doautocmd" argument. | |
8177 * The "argp" argument is advanced to the following argument. | |
8178 * | |
8179 * Returns the group ID, AUGROUP_ERROR for error (out of memory). | |
8180 */ | |
8181 static int | |
8182 au_get_grouparg(argp) | |
8183 char_u **argp; | |
8184 { | |
8185 char_u *group_name; | |
8186 char_u *p; | |
8187 char_u *arg = *argp; | |
8188 int group = AUGROUP_ALL; | |
8189 | |
8190 p = skiptowhite(arg); | |
8191 if (p > arg) | |
8192 { | |
8193 group_name = vim_strnsave(arg, (int)(p - arg)); | |
8194 if (group_name == NULL) /* out of memory */ | |
8195 return AUGROUP_ERROR; | |
8196 group = au_find_group(group_name); | |
8197 if (group == AUGROUP_ERROR) | |
8198 group = AUGROUP_ALL; /* no match, use all groups */ | |
8199 else | |
8200 *argp = skipwhite(p); /* match, skip over group name */ | |
8201 vim_free(group_name); | |
8202 } | |
8203 return group; | |
8204 } | |
8205 | |
8206 /* | |
8207 * do_autocmd() for one event. | |
8208 * If *pat == NUL do for all patterns. | |
8209 * If *cmd == NUL show entries. | |
8210 * If forceit == TRUE delete entries. | |
8211 * If group is not AUGROUP_ALL, only use this group. | |
8212 */ | |
8213 static int | |
8214 do_autocmd_event(event, pat, nested, cmd, forceit, group) | |
661 | 8215 event_T event; |
7 | 8216 char_u *pat; |
8217 int nested; | |
8218 char_u *cmd; | |
8219 int forceit; | |
8220 int group; | |
8221 { | |
8222 AutoPat *ap; | |
8223 AutoPat **prev_ap; | |
8224 AutoCmd *ac; | |
8225 AutoCmd **prev_ac; | |
8226 int brace_level; | |
8227 char_u *endpat; | |
8228 int findgroup; | |
8229 int allgroups; | |
8230 int patlen; | |
856 | 8231 int is_buflocal; |
40 | 8232 int buflocal_nr; |
8233 char_u buflocal_pat[25]; /* for "<buffer=X>" */ | |
7 | 8234 |
8235 if (group == AUGROUP_ALL) | |
8236 findgroup = current_augroup; | |
8237 else | |
8238 findgroup = group; | |
8239 allgroups = (group == AUGROUP_ALL && !forceit && *cmd == NUL); | |
8240 | |
8241 /* | |
8242 * Show or delete all patterns for an event. | |
8243 */ | |
8244 if (*pat == NUL) | |
8245 { | |
8246 for (ap = first_autopat[(int)event]; ap != NULL; ap = ap->next) | |
8247 { | |
8248 if (forceit) /* delete the AutoPat, if it's in the current group */ | |
8249 { | |
8250 if (ap->group == findgroup) | |
8251 au_remove_pat(ap); | |
8252 } | |
8253 else if (group == AUGROUP_ALL || ap->group == group) | |
8254 show_autocmd(ap, event); | |
8255 } | |
8256 } | |
8257 | |
8258 /* | |
8259 * Loop through all the specified patterns. | |
8260 */ | |
8261 for ( ; *pat; pat = (*endpat == ',' ? endpat + 1 : endpat)) | |
8262 { | |
8263 /* | |
8264 * Find end of the pattern. | |
8265 * Watch out for a comma in braces, like "*.\{obj,o\}". | |
8266 */ | |
8267 brace_level = 0; | |
8268 for (endpat = pat; *endpat && (*endpat != ',' || brace_level | |
8269 || endpat[-1] == '\\'); ++endpat) | |
8270 { | |
8271 if (*endpat == '{') | |
8272 brace_level++; | |
8273 else if (*endpat == '}') | |
8274 brace_level--; | |
8275 } | |
8276 if (pat == endpat) /* ignore single comma */ | |
8277 continue; | |
8278 patlen = (int)(endpat - pat); | |
8279 | |
8280 /* | |
40 | 8281 * detect special <buflocal[=X]> buffer-local patterns |
8282 */ | |
8283 is_buflocal = FALSE; | |
8284 buflocal_nr = 0; | |
8285 | |
8286 if (patlen >= 7 && STRNCMP(pat, "<buffer", 7) == 0 | |
8287 && pat[patlen - 1] == '>') | |
8288 { | |
8289 /* Error will be printed only for addition. printing and removing | |
8290 * will proceed silently. */ | |
8291 is_buflocal = TRUE; | |
8292 if (patlen == 8) | |
8293 buflocal_nr = curbuf->b_fnum; | |
8294 else if (patlen > 9 && pat[7] == '=') | |
8295 { | |
8296 /* <buffer=abuf> */ | |
8297 if (patlen == 13 && STRNICMP(pat, "<buffer=abuf>", 13)) | |
8298 buflocal_nr = autocmd_bufnr; | |
8299 /* <buffer=123> */ | |
8300 else if (skipdigits(pat + 8) == pat + patlen - 1) | |
8301 buflocal_nr = atoi((char *)pat + 8); | |
8302 } | |
8303 } | |
8304 | |
8305 if (is_buflocal) | |
8306 { | |
8307 /* normalize pat into standard "<buffer>#N" form */ | |
8308 sprintf((char *)buflocal_pat, "<buffer=%d>", buflocal_nr); | |
8309 pat = buflocal_pat; /* can modify pat and patlen */ | |
835 | 8310 patlen = (int)STRLEN(buflocal_pat); /* but not endpat */ |
40 | 8311 } |
8312 | |
8313 /* | |
7 | 8314 * Find AutoPat entries with this pattern. |
8315 */ | |
8316 prev_ap = &first_autopat[(int)event]; | |
8317 while ((ap = *prev_ap) != NULL) | |
8318 { | |
8319 if (ap->pat != NULL) | |
8320 { | |
8321 /* Accept a pattern when: | |
8322 * - a group was specified and it's that group, or a group was | |
8323 * not specified and it's the current group, or a group was | |
8324 * not specified and we are listing | |
8325 * - the length of the pattern matches | |
40 | 8326 * - the pattern matches. |
8327 * For <buffer[=X]>, this condition works because we normalize | |
8328 * all buffer-local patterns. | |
7 | 8329 */ |
8330 if ((allgroups || ap->group == findgroup) | |
8331 && ap->patlen == patlen | |
8332 && STRNCMP(pat, ap->pat, patlen) == 0) | |
8333 { | |
8334 /* | |
8335 * Remove existing autocommands. | |
8336 * If adding any new autocmd's for this AutoPat, don't | |
8337 * delete the pattern from the autopat list, append to | |
8338 * this list. | |
8339 */ | |
8340 if (forceit) | |
8341 { | |
8342 if (*cmd != NUL && ap->next == NULL) | |
8343 { | |
8344 au_remove_cmds(ap); | |
8345 break; | |
8346 } | |
8347 au_remove_pat(ap); | |
8348 } | |
8349 | |
8350 /* | |
40 | 8351 * Show autocmd's for this autopat, or buflocals <buffer=X> |
7 | 8352 */ |
8353 else if (*cmd == NUL) | |
8354 show_autocmd(ap, event); | |
8355 | |
8356 /* | |
8357 * Add autocmd to this autopat, if it's the last one. | |
8358 */ | |
8359 else if (ap->next == NULL) | |
8360 break; | |
8361 } | |
8362 } | |
8363 prev_ap = &ap->next; | |
8364 } | |
8365 | |
8366 /* | |
8367 * Add a new command. | |
8368 */ | |
8369 if (*cmd != NUL) | |
8370 { | |
8371 /* | |
8372 * If the pattern we want to add a command to does appear at the | |
8373 * end of the list (or not is not in the list at all), add the | |
8374 * pattern at the end of the list. | |
8375 */ | |
8376 if (ap == NULL) | |
8377 { | |
40 | 8378 /* refuse to add buffer-local ap if buffer number is invalid */ |
8379 if (is_buflocal && (buflocal_nr == 0 | |
8380 || buflist_findnr(buflocal_nr) == NULL)) | |
8381 { | |
8382 EMSGN(_("E680: <buffer=%d>: invalid buffer number "), | |
8383 buflocal_nr); | |
8384 return FAIL; | |
8385 } | |
8386 | |
7 | 8387 ap = (AutoPat *)alloc((unsigned)sizeof(AutoPat)); |
8388 if (ap == NULL) | |
8389 return FAIL; | |
8390 ap->pat = vim_strnsave(pat, patlen); | |
8391 ap->patlen = patlen; | |
8392 if (ap->pat == NULL) | |
8393 { | |
8394 vim_free(ap); | |
8395 return FAIL; | |
8396 } | |
40 | 8397 |
8398 if (is_buflocal) | |
8399 { | |
8400 ap->buflocal_nr = buflocal_nr; | |
153 | 8401 ap->reg_prog = NULL; |
40 | 8402 } |
8403 else | |
7 | 8404 { |
153 | 8405 char_u *reg_pat; |
8406 | |
40 | 8407 ap->buflocal_nr = 0; |
153 | 8408 reg_pat = file_pat_to_reg_pat(pat, endpat, |
40 | 8409 &ap->allow_dirs, TRUE); |
153 | 8410 if (reg_pat != NULL) |
8411 ap->reg_prog = vim_regcomp(reg_pat, RE_MAGIC); | |
355 | 8412 vim_free(reg_pat); |
153 | 8413 if (reg_pat == NULL || ap->reg_prog == NULL) |
40 | 8414 { |
8415 vim_free(ap->pat); | |
8416 vim_free(ap); | |
8417 return FAIL; | |
8418 } | |
7 | 8419 } |
8420 ap->cmds = NULL; | |
8421 *prev_ap = ap; | |
8422 ap->next = NULL; | |
8423 if (group == AUGROUP_ALL) | |
8424 ap->group = current_augroup; | |
8425 else | |
8426 ap->group = group; | |
8427 } | |
8428 | |
8429 /* | |
8430 * Add the autocmd at the end of the AutoCmd list. | |
8431 */ | |
8432 prev_ac = &(ap->cmds); | |
8433 while ((ac = *prev_ac) != NULL) | |
8434 prev_ac = &ac->next; | |
8435 ac = (AutoCmd *)alloc((unsigned)sizeof(AutoCmd)); | |
8436 if (ac == NULL) | |
8437 return FAIL; | |
8438 ac->cmd = vim_strsave(cmd); | |
8439 #ifdef FEAT_EVAL | |
8440 ac->scriptID = current_SID; | |
8441 #endif | |
8442 if (ac->cmd == NULL) | |
8443 { | |
8444 vim_free(ac); | |
8445 return FAIL; | |
8446 } | |
8447 ac->next = NULL; | |
8448 *prev_ac = ac; | |
8449 ac->nested = nested; | |
8450 } | |
8451 } | |
8452 | |
8453 au_cleanup(); /* may really delete removed patterns/commands now */ | |
8454 return OK; | |
8455 } | |
8456 | |
8457 /* | |
8458 * Implementation of ":doautocmd [group] event [fname]". | |
8459 * Return OK for success, FAIL for failure; | |
8460 */ | |
8461 int | |
8462 do_doautocmd(arg, do_msg) | |
8463 char_u *arg; | |
8464 int do_msg; /* give message for no matching autocmds? */ | |
8465 { | |
8466 char_u *fname; | |
8467 int nothing_done = TRUE; | |
8468 int group; | |
8469 | |
8470 /* | |
8471 * Check for a legal group name. If not, use AUGROUP_ALL. | |
8472 */ | |
8473 group = au_get_grouparg(&arg); | |
8474 if (arg == NULL) /* out of memory */ | |
8475 return FAIL; | |
8476 | |
8477 if (*arg == '*') | |
8478 { | |
8479 EMSG(_("E217: Can't execute autocommands for ALL events")); | |
8480 return FAIL; | |
8481 } | |
8482 | |
8483 /* | |
8484 * Scan over the events. | |
8485 * If we find an illegal name, return here, don't do anything. | |
8486 */ | |
8487 fname = find_end_event(arg, group != AUGROUP_ALL); | |
8488 if (fname == NULL) | |
8489 return FAIL; | |
8490 | |
8491 fname = skipwhite(fname); | |
8492 | |
8493 /* | |
8494 * Loop over the events. | |
8495 */ | |
8496 while (*arg && !vim_iswhite(*arg)) | |
8497 if (apply_autocmds_group(event_name2nr(arg, &arg), | |
8498 fname, NULL, TRUE, group, curbuf, NULL)) | |
8499 nothing_done = FALSE; | |
8500 | |
8501 if (nothing_done && do_msg) | |
8502 MSG(_("No matching autocommands")); | |
8503 | |
8504 #ifdef FEAT_EVAL | |
8505 return aborting() ? FAIL : OK; | |
8506 #else | |
8507 return OK; | |
8508 #endif | |
8509 } | |
8510 | |
8511 /* | |
8512 * ":doautoall": execute autocommands for each loaded buffer. | |
8513 */ | |
8514 void | |
8515 ex_doautoall(eap) | |
8516 exarg_T *eap; | |
8517 { | |
8518 int retval; | |
8519 aco_save_T aco; | |
8520 buf_T *buf; | |
8521 | |
8522 /* | |
8523 * This is a bit tricky: For some commands curwin->w_buffer needs to be | |
8524 * equal to curbuf, but for some buffers there may not be a window. | |
8525 * So we change the buffer for the current window for a moment. This | |
8526 * gives problems when the autocommands make changes to the list of | |
8527 * buffers or windows... | |
8528 */ | |
8529 for (buf = firstbuf; buf != NULL; buf = buf->b_next) | |
8530 { | |
1665 | 8531 if (buf->b_ml.ml_mfp != NULL) |
7 | 8532 { |
8533 /* find a window for this buffer and save some values */ | |
8534 aucmd_prepbuf(&aco, buf); | |
8535 | |
8536 /* execute the autocommands for this buffer */ | |
8537 retval = do_doautocmd(eap->arg, FALSE); | |
1113 | 8538 |
8539 /* Execute the modeline settings, but don't set window-local | |
8540 * options if we are using the current window for another buffer. */ | |
1906 | 8541 do_modelines(curwin == aucmd_win ? OPT_NOWIN : 0); |
7 | 8542 |
8543 /* restore the current window */ | |
8544 aucmd_restbuf(&aco); | |
8545 | |
8546 /* stop if there is some error or buffer was deleted */ | |
8547 if (retval == FAIL || !buf_valid(buf)) | |
8548 break; | |
8549 } | |
8550 } | |
8551 | |
8552 check_cursor(); /* just in case lines got deleted */ | |
8553 } | |
8554 | |
8555 /* | |
8556 * Prepare for executing autocommands for (hidden) buffer "buf". | |
1906 | 8557 * Search for a visible window containing the current buffer. If there isn't |
8558 * one then use "aucmd_win". | |
7 | 8559 * Set "curbuf" and "curwin" to match "buf". |
934 | 8560 * When FEAT_AUTOCMD is not defined another version is used, see below. |
7 | 8561 */ |
8562 void | |
8563 aucmd_prepbuf(aco, buf) | |
8564 aco_save_T *aco; /* structure to save values in */ | |
8565 buf_T *buf; /* new curbuf */ | |
8566 { | |
8567 win_T *win; | |
1906 | 8568 #ifdef FEAT_WINDOWS |
8569 int save_ea; | |
8570 #endif | |
7 | 8571 |
8572 /* Find a window that is for the new buffer */ | |
8573 if (buf == curbuf) /* be quick when buf is curbuf */ | |
8574 win = curwin; | |
8575 else | |
8576 #ifdef FEAT_WINDOWS | |
8577 for (win = firstwin; win != NULL; win = win->w_next) | |
8578 if (win->w_buffer == buf) | |
8579 break; | |
8580 #else | |
8581 win = NULL; | |
8582 #endif | |
8583 | |
1906 | 8584 /* Allocate "aucmd_win" when needed. If this fails (out of memory) fall |
8585 * back to using the current window. */ | |
8586 if (win == NULL && aucmd_win == NULL) | |
8587 { | |
8588 win_alloc_aucmd_win(); | |
8589 if (aucmd_win == NULL) | |
8590 win = curwin; | |
8591 } | |
1944 | 8592 if (win == NULL && aucmd_win_used) |
8593 /* Strange recursive autocommand, fall back to using the current | |
8594 * window. Expect a few side effects... */ | |
8595 win = curwin; | |
1906 | 8596 |
8597 aco->save_curwin = curwin; | |
8598 aco->save_curbuf = curbuf; | |
7 | 8599 if (win != NULL) |
8600 { | |
1906 | 8601 /* There is a window for "buf" in the current tab page, make it the |
8602 * curwin. This is preferred, it has the least side effects (esp. if | |
8603 * "buf" is curbuf). */ | |
1944 | 8604 aco->use_aucmd_win = FALSE; |
7 | 8605 curwin = win; |
8606 } | |
8607 else | |
8608 { | |
1906 | 8609 /* There is no window for "buf", use "aucmd_win". To minimize the side |
8610 * effects, insert it in a the current tab page. | |
8611 * Anything related to a window (e.g., setting folds) may have | |
8612 * unexpected results. */ | |
1944 | 8613 aco->use_aucmd_win = TRUE; |
8614 aucmd_win_used = TRUE; | |
1918 | 8615 aucmd_win->w_buffer = buf; |
7 | 8616 ++buf->b_nwindows; |
1918 | 8617 win_init_empty(aucmd_win); /* set cursor and topline to safe values */ |
1944 | 8618 vim_free(aucmd_win->w_localdir); |
8619 aucmd_win->w_localdir = NULL; | |
8620 | |
8621 /* Make sure w_localdir and globaldir are NULL to avoid a chdir() in | |
8622 * win_enter_ext(). */ | |
8623 aucmd_win->w_localdir = NULL; | |
8624 aco->globaldir = globaldir; | |
8625 globaldir = NULL; | |
8626 | |
7 | 8627 |
1906 | 8628 #ifdef FEAT_WINDOWS |
1923 | 8629 /* Split the current window, put the aucmd_win in the upper half. |
8630 * We don't want the BufEnter or WinEnter autocommands. */ | |
8631 block_autocmds(); | |
1906 | 8632 make_snapshot(SNAP_AUCMD_IDX); |
8633 save_ea = p_ea; | |
8634 p_ea = FALSE; | |
8635 (void)win_split_ins(0, WSP_TOP, aucmd_win, 0); | |
8636 (void)win_comp_pos(); /* recompute window positions */ | |
8637 p_ea = save_ea; | |
1923 | 8638 unblock_autocmds(); |
1906 | 8639 #endif |
1918 | 8640 curwin = aucmd_win; |
1906 | 8641 } |
7 | 8642 curbuf = buf; |
1906 | 8643 aco->new_curwin = curwin; |
8644 aco->new_curbuf = curbuf; | |
7 | 8645 } |
8646 | |
8647 /* | |
8648 * Cleanup after executing autocommands for a (hidden) buffer. | |
8649 * Restore the window as it was (if possible). | |
934 | 8650 * When FEAT_AUTOCMD is not defined another version is used, see below. |
7 | 8651 */ |
8652 void | |
8653 aucmd_restbuf(aco) | |
8654 aco_save_T *aco; /* structure holding saved values */ | |
8655 { | |
1906 | 8656 #ifdef FEAT_WINDOWS |
8657 int dummy; | |
8658 #endif | |
8659 | |
1944 | 8660 if (aco->use_aucmd_win) |
1906 | 8661 { |
8662 --curbuf->b_nwindows; | |
8663 #ifdef FEAT_WINDOWS | |
8664 /* Find "aucmd_win", it can't be closed, but it may be in another tab | |
1923 | 8665 * page. Do not trigger autocommands here. */ |
8666 block_autocmds(); | |
1906 | 8667 if (curwin != aucmd_win) |
8668 { | |
8669 tabpage_T *tp; | |
8670 win_T *wp; | |
8671 | |
8672 FOR_ALL_TAB_WINDOWS(tp, wp) | |
8673 { | |
8674 if (wp == aucmd_win) | |
8675 { | |
8676 if (tp != curtab) | |
8677 goto_tabpage_tp(tp); | |
8678 win_goto(aucmd_win); | |
8679 break; | |
8680 } | |
8681 } | |
8682 } | |
8683 | |
8684 /* Remove the window and frame from the tree of frames. */ | |
8685 (void)winframe_remove(curwin, &dummy, NULL); | |
8686 win_remove(curwin, NULL); | |
1944 | 8687 aucmd_win_used = FALSE; |
1906 | 8688 last_status(FALSE); /* may need to remove last status line */ |
8689 restore_snapshot(SNAP_AUCMD_IDX, FALSE); | |
8690 (void)win_comp_pos(); /* recompute window positions */ | |
1923 | 8691 unblock_autocmds(); |
1906 | 8692 |
8693 if (win_valid(aco->save_curwin)) | |
8694 curwin = aco->save_curwin; | |
8695 else | |
8696 /* Hmm, original window disappeared. Just use the first one. */ | |
8697 curwin = firstwin; | |
8698 # ifdef FEAT_EVAL | |
8699 vars_clear(&aucmd_win->w_vars.dv_hashtab); /* free all w: variables */ | |
2001 | 8700 hash_init(&aucmd_win->w_vars.dv_hashtab); /* re-use the hashtab */ |
1906 | 8701 # endif |
8702 #else | |
8703 curwin = aco->save_curwin; | |
8704 #endif | |
8705 curbuf = curwin->w_buffer; | |
8706 | |
1944 | 8707 vim_free(globaldir); |
8708 globaldir = aco->globaldir; | |
8709 | |
1906 | 8710 /* the buffer contents may have changed */ |
8711 check_cursor(); | |
8712 if (curwin->w_topline > curbuf->b_ml.ml_line_count) | |
8713 { | |
8714 curwin->w_topline = curbuf->b_ml.ml_line_count; | |
8715 #ifdef FEAT_DIFF | |
8716 curwin->w_topfill = 0; | |
8717 #endif | |
8718 } | |
8719 #if defined(FEAT_GUI) | |
8720 /* Hide the scrollbars from the aucmd_win and update. */ | |
8721 gui_mch_enable_scrollbar(&aucmd_win->w_scrollbars[SBAR_LEFT], FALSE); | |
8722 gui_mch_enable_scrollbar(&aucmd_win->w_scrollbars[SBAR_RIGHT], FALSE); | |
8723 gui_may_update_scrollbars(); | |
8724 #endif | |
8725 } | |
8726 else | |
7 | 8727 { |
8728 /* restore curwin */ | |
8729 #ifdef FEAT_WINDOWS | |
8730 if (win_valid(aco->save_curwin)) | |
8731 #endif | |
8732 { | |
1906 | 8733 /* Restore the buffer which was previously edited by curwin, if |
1944 | 8734 * it was changed, we are still the same window and the buffer is |
1906 | 8735 * valid. */ |
7 | 8736 if (curwin == aco->new_curwin |
1906 | 8737 && curbuf != aco->new_curbuf |
8738 && buf_valid(aco->new_curbuf) | |
8739 && aco->new_curbuf->b_ml.ml_mfp != NULL) | |
7 | 8740 { |
8741 --curbuf->b_nwindows; | |
1906 | 8742 curbuf = aco->new_curbuf; |
7 | 8743 curwin->w_buffer = curbuf; |
8744 ++curbuf->b_nwindows; | |
8745 } | |
8746 | |
8747 curwin = aco->save_curwin; | |
8748 curbuf = curwin->w_buffer; | |
8749 } | |
8750 } | |
8751 } | |
8752 | |
8753 static int autocmd_nested = FALSE; | |
8754 | |
8755 /* | |
8756 * Execute autocommands for "event" and file name "fname". | |
8757 * Return TRUE if some commands were executed. | |
8758 */ | |
8759 int | |
8760 apply_autocmds(event, fname, fname_io, force, buf) | |
661 | 8761 event_T event; |
7 | 8762 char_u *fname; /* NULL or empty means use actual file name */ |
8763 char_u *fname_io; /* fname to use for <afile> on cmdline */ | |
8764 int force; /* when TRUE, ignore autocmd_busy */ | |
8765 buf_T *buf; /* buffer for <abuf> */ | |
8766 { | |
8767 return apply_autocmds_group(event, fname, fname_io, force, | |
8768 AUGROUP_ALL, buf, NULL); | |
8769 } | |
8770 | |
8771 /* | |
8772 * Like apply_autocmds(), but with extra "eap" argument. This takes care of | |
8773 * setting v:filearg. | |
8774 */ | |
8775 static int | |
8776 apply_autocmds_exarg(event, fname, fname_io, force, buf, eap) | |
661 | 8777 event_T event; |
7 | 8778 char_u *fname; |
8779 char_u *fname_io; | |
8780 int force; | |
8781 buf_T *buf; | |
8782 exarg_T *eap; | |
8783 { | |
8784 return apply_autocmds_group(event, fname, fname_io, force, | |
8785 AUGROUP_ALL, buf, eap); | |
8786 } | |
8787 | |
8788 /* | |
8789 * Like apply_autocmds(), but handles the caller's retval. If the script | |
8790 * processing is being aborted or if retval is FAIL when inside a try | |
8791 * conditional, no autocommands are executed. If otherwise the autocommands | |
8792 * cause the script to be aborted, retval is set to FAIL. | |
8793 */ | |
8794 int | |
8795 apply_autocmds_retval(event, fname, fname_io, force, buf, retval) | |
661 | 8796 event_T event; |
7 | 8797 char_u *fname; /* NULL or empty means use actual file name */ |
8798 char_u *fname_io; /* fname to use for <afile> on cmdline */ | |
8799 int force; /* when TRUE, ignore autocmd_busy */ | |
8800 buf_T *buf; /* buffer for <abuf> */ | |
8801 int *retval; /* pointer to caller's retval */ | |
8802 { | |
8803 int did_cmd; | |
8804 | |
532 | 8805 #ifdef FEAT_EVAL |
7 | 8806 if (should_abort(*retval)) |
8807 return FALSE; | |
532 | 8808 #endif |
7 | 8809 |
8810 did_cmd = apply_autocmds_group(event, fname, fname_io, force, | |
8811 AUGROUP_ALL, buf, NULL); | |
532 | 8812 if (did_cmd |
8813 #ifdef FEAT_EVAL | |
8814 && aborting() | |
8815 #endif | |
8816 ) | |
7 | 8817 *retval = FAIL; |
8818 return did_cmd; | |
8819 } | |
8820 | |
609 | 8821 /* |
8822 * Return TRUE when there is a CursorHold autocommand defined. | |
8823 */ | |
7 | 8824 int |
8825 has_cursorhold() | |
8826 { | |
661 | 8827 return (first_autopat[(int)(get_real_state() == NORMAL_BUSY |
8828 ? EVENT_CURSORHOLD : EVENT_CURSORHOLDI)] != NULL); | |
7 | 8829 } |
609 | 8830 |
8831 /* | |
8832 * Return TRUE if the CursorHold event can be triggered. | |
8833 */ | |
8834 int | |
8835 trigger_cursorhold() | |
8836 { | |
661 | 8837 int state; |
8838 | |
978 | 8839 if (!did_cursorhold && has_cursorhold() && !Recording |
8840 #ifdef FEAT_INS_EXPAND | |
8841 && !ins_compl_active() | |
8842 #endif | |
8843 ) | |
661 | 8844 { |
8845 state = get_real_state(); | |
8846 if (state == NORMAL_BUSY || (state & INSERT) != 0) | |
8847 return TRUE; | |
8848 } | |
8849 return FALSE; | |
609 | 8850 } |
661 | 8851 |
8852 /* | |
8853 * Return TRUE when there is a CursorMoved autocommand defined. | |
8854 */ | |
8855 int | |
8856 has_cursormoved() | |
8857 { | |
8858 return (first_autopat[(int)EVENT_CURSORMOVED] != NULL); | |
8859 } | |
8860 | |
8861 /* | |
8862 * Return TRUE when there is a CursorMovedI autocommand defined. | |
8863 */ | |
8864 int | |
8865 has_cursormovedI() | |
8866 { | |
8867 return (first_autopat[(int)EVENT_CURSORMOVEDI] != NULL); | |
8868 } | |
7 | 8869 |
8870 static int | |
8871 apply_autocmds_group(event, fname, fname_io, force, group, buf, eap) | |
661 | 8872 event_T event; |
7 | 8873 char_u *fname; /* NULL or empty means use actual file name */ |
8874 char_u *fname_io; /* fname to use for <afile> on cmdline, NULL means | |
8875 use fname */ | |
8876 int force; /* when TRUE, ignore autocmd_busy */ | |
8877 int group; /* group ID, or AUGROUP_ALL */ | |
8878 buf_T *buf; /* buffer for <abuf> */ | |
8879 exarg_T *eap; /* command arguments */ | |
8880 { | |
8881 char_u *sfname = NULL; /* short file name */ | |
8882 char_u *tail; | |
8883 int save_changed; | |
8884 buf_T *old_curbuf; | |
8885 int retval = FALSE; | |
8886 char_u *save_sourcing_name; | |
8887 linenr_T save_sourcing_lnum; | |
8888 char_u *save_autocmd_fname; | |
1723 | 8889 int save_autocmd_fname_full; |
7 | 8890 int save_autocmd_bufnr; |
8891 char_u *save_autocmd_match; | |
8892 int save_autocmd_busy; | |
8893 int save_autocmd_nested; | |
8894 static int nesting = 0; | |
8895 AutoPatCmd patcmd; | |
8896 AutoPat *ap; | |
8897 #ifdef FEAT_EVAL | |
8898 scid_T save_current_SID; | |
8899 void *save_funccalp; | |
8900 char_u *save_cmdarg; | |
8901 long save_cmdbang; | |
8902 #endif | |
8903 static int filechangeshell_busy = FALSE; | |
170 | 8904 #ifdef FEAT_PROFILE |
8905 proftime_T wait_time; | |
8906 #endif | |
7 | 8907 |
8908 /* | |
8909 * Quickly return if there are no autocommands for this event or | |
8910 * autocommands are blocked. | |
8911 */ | |
1410 | 8912 if (first_autopat[(int)event] == NULL || autocmd_blocked > 0) |
40 | 8913 goto BYPASS_AU; |
7 | 8914 |
8915 /* | |
8916 * When autocommands are busy, new autocommands are only executed when | |
8917 * explicitly enabled with the "nested" flag. | |
8918 */ | |
8919 if (autocmd_busy && !(force || autocmd_nested)) | |
40 | 8920 goto BYPASS_AU; |
7 | 8921 |
8922 #ifdef FEAT_EVAL | |
8923 /* | |
1201 | 8924 * Quickly return when immediately aborting on error, or when an interrupt |
7 | 8925 * occurred or an exception was thrown but not caught. |
8926 */ | |
8927 if (aborting()) | |
40 | 8928 goto BYPASS_AU; |
7 | 8929 #endif |
8930 | |
8931 /* | |
8932 * FileChangedShell never nests, because it can create an endless loop. | |
8933 */ | |
765 | 8934 if (filechangeshell_busy && (event == EVENT_FILECHANGEDSHELL |
8935 || event == EVENT_FILECHANGEDSHELLPOST)) | |
40 | 8936 goto BYPASS_AU; |
7 | 8937 |
8938 /* | |
8939 * Ignore events in 'eventignore'. | |
8940 */ | |
8941 if (event_ignored(event)) | |
40 | 8942 goto BYPASS_AU; |
7 | 8943 |
8944 /* | |
8945 * Allow nesting of autocommands, but restrict the depth, because it's | |
8946 * possible to create an endless loop. | |
8947 */ | |
8948 if (nesting == 10) | |
8949 { | |
8950 EMSG(_("E218: autocommand nesting too deep")); | |
40 | 8951 goto BYPASS_AU; |
7 | 8952 } |
8953 | |
8954 /* | |
8955 * Check if these autocommands are disabled. Used when doing ":all" or | |
8956 * ":ball". | |
8957 */ | |
8958 if ( (autocmd_no_enter | |
8959 && (event == EVENT_WINENTER || event == EVENT_BUFENTER)) | |
8960 || (autocmd_no_leave | |
8961 && (event == EVENT_WINLEAVE || event == EVENT_BUFLEAVE))) | |
40 | 8962 goto BYPASS_AU; |
7 | 8963 |
8964 /* | |
8965 * Save the autocmd_* variables and info about the current buffer. | |
8966 */ | |
8967 save_autocmd_fname = autocmd_fname; | |
1723 | 8968 save_autocmd_fname_full = autocmd_fname_full; |
7 | 8969 save_autocmd_bufnr = autocmd_bufnr; |
8970 save_autocmd_match = autocmd_match; | |
8971 save_autocmd_busy = autocmd_busy; | |
8972 save_autocmd_nested = autocmd_nested; | |
8973 save_changed = curbuf->b_changed; | |
8974 old_curbuf = curbuf; | |
8975 | |
8976 /* | |
8977 * Set the file name to be used for <afile>. | |
1471 | 8978 * Make a copy to avoid that changing a buffer name or directory makes it |
8979 * invalid. | |
7 | 8980 */ |
8981 if (fname_io == NULL) | |
8982 { | |
8983 if (fname != NULL && *fname != NUL) | |
8984 autocmd_fname = fname; | |
8985 else if (buf != NULL) | |
1723 | 8986 autocmd_fname = buf->b_ffname; |
7 | 8987 else |
8988 autocmd_fname = NULL; | |
8989 } | |
8990 else | |
8991 autocmd_fname = fname_io; | |
1471 | 8992 if (autocmd_fname != NULL) |
1723 | 8993 autocmd_fname = vim_strsave(autocmd_fname); |
8994 autocmd_fname_full = FALSE; /* call FullName_save() later */ | |
7 | 8995 |
8996 /* | |
8997 * Set the buffer number to be used for <abuf>. | |
8998 */ | |
8999 if (buf == NULL) | |
9000 autocmd_bufnr = 0; | |
9001 else | |
9002 autocmd_bufnr = buf->b_fnum; | |
9003 | |
9004 /* | |
9005 * When the file name is NULL or empty, use the file name of buffer "buf". | |
9006 * Always use the full path of the file name to match with, in case | |
9007 * "allow_dirs" is set. | |
9008 */ | |
9009 if (fname == NULL || *fname == NUL) | |
9010 { | |
9011 if (buf == NULL) | |
9012 fname = NULL; | |
9013 else | |
9014 { | |
9015 #ifdef FEAT_SYN_HL | |
9016 if (event == EVENT_SYNTAX) | |
9017 fname = buf->b_p_syn; | |
9018 else | |
9019 #endif | |
9020 if (event == EVENT_FILETYPE) | |
9021 fname = buf->b_p_ft; | |
9022 else | |
9023 { | |
9024 if (buf->b_sfname != NULL) | |
9025 sfname = vim_strsave(buf->b_sfname); | |
9026 fname = buf->b_ffname; | |
9027 } | |
9028 } | |
9029 if (fname == NULL) | |
9030 fname = (char_u *)""; | |
9031 fname = vim_strsave(fname); /* make a copy, so we can change it */ | |
9032 } | |
9033 else | |
9034 { | |
9035 sfname = vim_strsave(fname); | |
1867 | 9036 /* Don't try expanding FileType, Syntax, FuncUndefined, WindowID or |
9037 * QuickFixCmd* */ | |
161 | 9038 if (event == EVENT_FILETYPE |
9039 || event == EVENT_SYNTAX | |
1867 | 9040 || event == EVENT_FUNCUNDEFINED |
161 | 9041 || event == EVENT_REMOTEREPLY |
649 | 9042 || event == EVENT_SPELLFILEMISSING |
161 | 9043 || event == EVENT_QUICKFIXCMDPRE |
9044 || event == EVENT_QUICKFIXCMDPOST) | |
7 | 9045 fname = vim_strsave(fname); |
9046 else | |
9047 fname = FullName_save(fname, FALSE); | |
9048 } | |
9049 if (fname == NULL) /* out of memory */ | |
9050 { | |
9051 vim_free(sfname); | |
40 | 9052 retval = FALSE; |
9053 goto BYPASS_AU; | |
7 | 9054 } |
9055 | |
9056 #ifdef BACKSLASH_IN_FILENAME | |
9057 /* | |
9058 * Replace all backslashes with forward slashes. This makes the | |
9059 * autocommand patterns portable between Unix and MS-DOS. | |
9060 */ | |
9061 if (sfname != NULL) | |
9062 forward_slash(sfname); | |
9063 forward_slash(fname); | |
9064 #endif | |
9065 | |
9066 #ifdef VMS | |
9067 /* remove version for correct match */ | |
9068 if (sfname != NULL) | |
9069 vms_remove_version(sfname); | |
9070 vms_remove_version(fname); | |
9071 #endif | |
9072 | |
9073 /* | |
9074 * Set the name to be used for <amatch>. | |
9075 */ | |
9076 autocmd_match = fname; | |
9077 | |
9078 | |
9079 /* Don't redraw while doing auto commands. */ | |
9080 ++RedrawingDisabled; | |
9081 save_sourcing_name = sourcing_name; | |
9082 sourcing_name = NULL; /* don't free this one */ | |
9083 save_sourcing_lnum = sourcing_lnum; | |
9084 sourcing_lnum = 0; /* no line number here */ | |
9085 | |
9086 #ifdef FEAT_EVAL | |
9087 save_current_SID = current_SID; | |
9088 | |
170 | 9089 # ifdef FEAT_PROFILE |
788 | 9090 if (do_profiling == PROF_YES) |
170 | 9091 prof_child_enter(&wait_time); /* doesn't count for the caller itself */ |
9092 # endif | |
9093 | |
7 | 9094 /* Don't use local function variables, if called from a function */ |
9095 save_funccalp = save_funccal(); | |
9096 #endif | |
9097 | |
9098 /* | |
9099 * When starting to execute autocommands, save the search patterns. | |
9100 */ | |
9101 if (!autocmd_busy) | |
9102 { | |
9103 save_search_patterns(); | |
9104 saveRedobuff(); | |
9105 did_filetype = keep_filetype; | |
9106 } | |
9107 | |
9108 /* | |
9109 * Note that we are applying autocmds. Some commands need to know. | |
9110 */ | |
9111 autocmd_busy = TRUE; | |
9112 filechangeshell_busy = (event == EVENT_FILECHANGEDSHELL); | |
9113 ++nesting; /* see matching decrement below */ | |
9114 | |
9115 /* Remember that FileType was triggered. Used for did_filetype(). */ | |
9116 if (event == EVENT_FILETYPE) | |
9117 did_filetype = TRUE; | |
9118 | |
9119 tail = gettail(fname); | |
9120 | |
9121 /* Find first autocommand that matches */ | |
9122 patcmd.curpat = first_autopat[(int)event]; | |
9123 patcmd.nextcmd = NULL; | |
9124 patcmd.group = group; | |
9125 patcmd.fname = fname; | |
9126 patcmd.sfname = sfname; | |
9127 patcmd.tail = tail; | |
9128 patcmd.event = event; | |
40 | 9129 patcmd.arg_bufnr = autocmd_bufnr; |
9130 patcmd.next = NULL; | |
7 | 9131 auto_next_pat(&patcmd, FALSE); |
9132 | |
9133 /* found one, start executing the autocommands */ | |
9134 if (patcmd.curpat != NULL) | |
9135 { | |
40 | 9136 /* add to active_apc_list */ |
9137 patcmd.next = active_apc_list; | |
9138 active_apc_list = &patcmd; | |
9139 | |
7 | 9140 #ifdef FEAT_EVAL |
9141 /* set v:cmdarg (only when there is a matching pattern) */ | |
9142 save_cmdbang = get_vim_var_nr(VV_CMDBANG); | |
9143 if (eap != NULL) | |
9144 { | |
9145 save_cmdarg = set_cmdarg(eap, NULL); | |
9146 set_vim_var_nr(VV_CMDBANG, (long)eap->forceit); | |
9147 } | |
9148 else | |
9149 save_cmdarg = NULL; /* avoid gcc warning */ | |
9150 #endif | |
9151 retval = TRUE; | |
9152 /* mark the last pattern, to avoid an endless loop when more patterns | |
9153 * are added when executing autocommands */ | |
9154 for (ap = patcmd.curpat; ap->next != NULL; ap = ap->next) | |
9155 ap->last = FALSE; | |
9156 ap->last = TRUE; | |
9157 check_lnums(TRUE); /* make sure cursor and topline are valid */ | |
9158 do_cmdline(NULL, getnextac, (void *)&patcmd, | |
9159 DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT); | |
9160 #ifdef FEAT_EVAL | |
9161 if (eap != NULL) | |
9162 { | |
9163 (void)set_cmdarg(NULL, save_cmdarg); | |
9164 set_vim_var_nr(VV_CMDBANG, save_cmdbang); | |
9165 } | |
9166 #endif | |
40 | 9167 /* delete from active_apc_list */ |
9168 if (active_apc_list == &patcmd) /* just in case */ | |
9169 active_apc_list = patcmd.next; | |
7 | 9170 } |
9171 | |
9172 --RedrawingDisabled; | |
9173 autocmd_busy = save_autocmd_busy; | |
9174 filechangeshell_busy = FALSE; | |
9175 autocmd_nested = save_autocmd_nested; | |
9176 vim_free(sourcing_name); | |
9177 sourcing_name = save_sourcing_name; | |
9178 sourcing_lnum = save_sourcing_lnum; | |
1471 | 9179 vim_free(autocmd_fname); |
7 | 9180 autocmd_fname = save_autocmd_fname; |
1723 | 9181 autocmd_fname_full = save_autocmd_fname_full; |
7 | 9182 autocmd_bufnr = save_autocmd_bufnr; |
9183 autocmd_match = save_autocmd_match; | |
9184 #ifdef FEAT_EVAL | |
9185 current_SID = save_current_SID; | |
9186 restore_funccal(save_funccalp); | |
170 | 9187 # ifdef FEAT_PROFILE |
788 | 9188 if (do_profiling == PROF_YES) |
170 | 9189 prof_child_exit(&wait_time); |
9190 # endif | |
7 | 9191 #endif |
9192 vim_free(fname); | |
9193 vim_free(sfname); | |
9194 --nesting; /* see matching increment above */ | |
9195 | |
9196 /* | |
9197 * When stopping to execute autocommands, restore the search patterns and | |
9198 * the redo buffer. | |
9199 */ | |
9200 if (!autocmd_busy) | |
9201 { | |
9202 restore_search_patterns(); | |
9203 restoreRedobuff(); | |
9204 did_filetype = FALSE; | |
9205 } | |
9206 | |
9207 /* | |
9208 * Some events don't set or reset the Changed flag. | |
9209 * Check if still in the same buffer! | |
9210 */ | |
9211 if (curbuf == old_curbuf | |
9212 && (event == EVENT_BUFREADPOST | |
9213 || event == EVENT_BUFWRITEPOST | |
9214 || event == EVENT_FILEAPPENDPOST | |
9215 || event == EVENT_VIMLEAVE | |
9216 || event == EVENT_VIMLEAVEPRE)) | |
9217 { | |
9218 #ifdef FEAT_TITLE | |
9219 if (curbuf->b_changed != save_changed) | |
9220 need_maketitle = TRUE; | |
9221 #endif | |
9222 curbuf->b_changed = save_changed; | |
9223 } | |
9224 | |
9225 au_cleanup(); /* may really delete removed patterns/commands now */ | |
40 | 9226 |
9227 BYPASS_AU: | |
9228 /* When wiping out a buffer make sure all its buffer-local autocommands | |
9229 * are deleted. */ | |
9230 if (event == EVENT_BUFWIPEOUT && buf != NULL) | |
9231 aubuflocal_remove(buf); | |
9232 | |
7 | 9233 return retval; |
9234 } | |
9235 | |
1410 | 9236 # ifdef FEAT_EVAL |
9237 static char_u *old_termresponse = NULL; | |
9238 # endif | |
9239 | |
9240 /* | |
9241 * Block triggering autocommands until unblock_autocmd() is called. | |
9242 * Can be used recursively, so long as it's symmetric. | |
9243 */ | |
9244 void | |
9245 block_autocmds() | |
9246 { | |
9247 # ifdef FEAT_EVAL | |
9248 /* Remember the value of v:termresponse. */ | |
9249 if (autocmd_blocked == 0) | |
9250 old_termresponse = get_vim_var_str(VV_TERMRESPONSE); | |
9251 # endif | |
9252 ++autocmd_blocked; | |
9253 } | |
9254 | |
9255 void | |
9256 unblock_autocmds() | |
9257 { | |
9258 --autocmd_blocked; | |
9259 | |
9260 # ifdef FEAT_EVAL | |
9261 /* When v:termresponse was set while autocommands were blocked, trigger | |
9262 * the autocommands now. Esp. useful when executing a shell command | |
9263 * during startup (vimdiff). */ | |
9264 if (autocmd_blocked == 0 | |
9265 && get_vim_var_str(VV_TERMRESPONSE) != old_termresponse) | |
9266 apply_autocmds(EVENT_TERMRESPONSE, NULL, NULL, FALSE, curbuf); | |
9267 # endif | |
9268 } | |
9269 | |
7 | 9270 /* |
9271 * Find next autocommand pattern that matches. | |
9272 */ | |
9273 static void | |
9274 auto_next_pat(apc, stop_at_last) | |
9275 AutoPatCmd *apc; | |
9276 int stop_at_last; /* stop when 'last' flag is set */ | |
9277 { | |
9278 AutoPat *ap; | |
9279 AutoCmd *cp; | |
9280 char_u *name; | |
9281 char *s; | |
9282 | |
9283 vim_free(sourcing_name); | |
9284 sourcing_name = NULL; | |
9285 | |
9286 for (ap = apc->curpat; ap != NULL && !got_int; ap = ap->next) | |
9287 { | |
9288 apc->curpat = NULL; | |
9289 | |
1723 | 9290 /* Only use a pattern when it has not been removed, has commands and |
40 | 9291 * the group matches. For buffer-local autocommands only check the |
9292 * buffer number. */ | |
7 | 9293 if (ap->pat != NULL && ap->cmds != NULL |
9294 && (apc->group == AUGROUP_ALL || apc->group == ap->group)) | |
9295 { | |
40 | 9296 /* execution-condition */ |
9297 if (ap->buflocal_nr == 0 | |
153 | 9298 ? (match_file_pat(NULL, ap->reg_prog, apc->fname, |
9299 apc->sfname, apc->tail, ap->allow_dirs)) | |
40 | 9300 : ap->buflocal_nr == apc->arg_bufnr) |
7 | 9301 { |
9302 name = event_nr2name(apc->event); | |
9303 s = _("%s Auto commands for \"%s\""); | |
9304 sourcing_name = alloc((unsigned)(STRLEN(s) | |
9305 + STRLEN(name) + ap->patlen + 1)); | |
9306 if (sourcing_name != NULL) | |
9307 { | |
9308 sprintf((char *)sourcing_name, s, | |
9309 (char *)name, (char *)ap->pat); | |
9310 if (p_verbose >= 8) | |
292 | 9311 { |
9312 verbose_enter(); | |
273 | 9313 smsg((char_u *)_("Executing %s"), sourcing_name); |
292 | 9314 verbose_leave(); |
9315 } | |
7 | 9316 } |
9317 | |
9318 apc->curpat = ap; | |
9319 apc->nextcmd = ap->cmds; | |
9320 /* mark last command */ | |
9321 for (cp = ap->cmds; cp->next != NULL; cp = cp->next) | |
9322 cp->last = FALSE; | |
9323 cp->last = TRUE; | |
9324 } | |
9325 line_breakcheck(); | |
9326 if (apc->curpat != NULL) /* found a match */ | |
9327 break; | |
9328 } | |
9329 if (stop_at_last && ap->last) | |
9330 break; | |
9331 } | |
9332 } | |
9333 | |
9334 /* | |
9335 * Get next autocommand command. | |
9336 * Called by do_cmdline() to get the next line for ":if". | |
9337 * Returns allocated string, or NULL for end of autocommands. | |
9338 */ | |
9339 static char_u * | |
9340 getnextac(c, cookie, indent) | |
1880 | 9341 int c UNUSED; |
7 | 9342 void *cookie; |
1880 | 9343 int indent UNUSED; |
7 | 9344 { |
9345 AutoPatCmd *acp = (AutoPatCmd *)cookie; | |
9346 char_u *retval; | |
9347 AutoCmd *ac; | |
9348 | |
9349 /* Can be called again after returning the last line. */ | |
9350 if (acp->curpat == NULL) | |
9351 return NULL; | |
9352 | |
9353 /* repeat until we find an autocommand to execute */ | |
9354 for (;;) | |
9355 { | |
9356 /* skip removed commands */ | |
9357 while (acp->nextcmd != NULL && acp->nextcmd->cmd == NULL) | |
9358 if (acp->nextcmd->last) | |
9359 acp->nextcmd = NULL; | |
9360 else | |
9361 acp->nextcmd = acp->nextcmd->next; | |
9362 | |
9363 if (acp->nextcmd != NULL) | |
9364 break; | |
9365 | |
9366 /* at end of commands, find next pattern that matches */ | |
9367 if (acp->curpat->last) | |
9368 acp->curpat = NULL; | |
9369 else | |
9370 acp->curpat = acp->curpat->next; | |
9371 if (acp->curpat != NULL) | |
9372 auto_next_pat(acp, TRUE); | |
9373 if (acp->curpat == NULL) | |
9374 return NULL; | |
9375 } | |
9376 | |
9377 ac = acp->nextcmd; | |
9378 | |
9379 if (p_verbose >= 9) | |
9380 { | |
292 | 9381 verbose_enter_scroll(); |
273 | 9382 smsg((char_u *)_("autocommand %s"), ac->cmd); |
7 | 9383 msg_puts((char_u *)"\n"); /* don't overwrite this either */ |
292 | 9384 verbose_leave_scroll(); |
7 | 9385 } |
9386 retval = vim_strsave(ac->cmd); | |
9387 autocmd_nested = ac->nested; | |
9388 #ifdef FEAT_EVAL | |
9389 current_SID = ac->scriptID; | |
9390 #endif | |
9391 if (ac->last) | |
9392 acp->nextcmd = NULL; | |
9393 else | |
9394 acp->nextcmd = ac->next; | |
9395 return retval; | |
9396 } | |
9397 | |
9398 /* | |
9399 * Return TRUE if there is a matching autocommand for "fname". | |
40 | 9400 * To account for buffer-local autocommands, function needs to know |
9401 * in which buffer the file will be opened. | |
7 | 9402 */ |
9403 int | |
40 | 9404 has_autocmd(event, sfname, buf) |
661 | 9405 event_T event; |
7 | 9406 char_u *sfname; |
40 | 9407 buf_T *buf; |
7 | 9408 { |
9409 AutoPat *ap; | |
9410 char_u *fname; | |
9411 char_u *tail = gettail(sfname); | |
9412 int retval = FALSE; | |
9413 | |
9414 fname = FullName_save(sfname, FALSE); | |
9415 if (fname == NULL) | |
9416 return FALSE; | |
9417 | |
9418 #ifdef BACKSLASH_IN_FILENAME | |
9419 /* | |
9420 * Replace all backslashes with forward slashes. This makes the | |
9421 * autocommand patterns portable between Unix and MS-DOS. | |
9422 */ | |
9423 sfname = vim_strsave(sfname); | |
9424 if (sfname != NULL) | |
9425 forward_slash(sfname); | |
9426 forward_slash(fname); | |
9427 #endif | |
9428 | |
9429 for (ap = first_autopat[(int)event]; ap != NULL; ap = ap->next) | |
9430 if (ap->pat != NULL && ap->cmds != NULL | |
856 | 9431 && (ap->buflocal_nr == 0 |
153 | 9432 ? match_file_pat(NULL, ap->reg_prog, |
9433 fname, sfname, tail, ap->allow_dirs) | |
856 | 9434 : buf != NULL && ap->buflocal_nr == buf->b_fnum |
40 | 9435 )) |
7 | 9436 { |
9437 retval = TRUE; | |
9438 break; | |
9439 } | |
9440 | |
9441 vim_free(fname); | |
9442 #ifdef BACKSLASH_IN_FILENAME | |
9443 vim_free(sfname); | |
9444 #endif | |
9445 | |
9446 return retval; | |
9447 } | |
9448 | |
9449 #if defined(FEAT_CMDL_COMPL) || defined(PROTO) | |
9450 /* | |
9451 * Function given to ExpandGeneric() to obtain the list of autocommand group | |
9452 * names. | |
9453 */ | |
9454 char_u * | |
9455 get_augroup_name(xp, idx) | |
1880 | 9456 expand_T *xp UNUSED; |
7 | 9457 int idx; |
9458 { | |
9459 if (idx == augroups.ga_len) /* add "END" add the end */ | |
9460 return (char_u *)"END"; | |
9461 if (idx >= augroups.ga_len) /* end of list */ | |
9462 return NULL; | |
9463 if (AUGROUP_NAME(idx) == NULL) /* skip deleted entries */ | |
9464 return (char_u *)""; | |
9465 return AUGROUP_NAME(idx); /* return a name */ | |
9466 } | |
9467 | |
9468 static int include_groups = FALSE; | |
9469 | |
9470 char_u * | |
9471 set_context_in_autocmd(xp, arg, doautocmd) | |
9472 expand_T *xp; | |
9473 char_u *arg; | |
1733 | 9474 int doautocmd; /* TRUE for :doauto*, FALSE for :autocmd */ |
7 | 9475 { |
9476 char_u *p; | |
9477 int group; | |
9478 | |
9479 /* check for a group name, skip it if present */ | |
9480 include_groups = FALSE; | |
9481 p = arg; | |
9482 group = au_get_grouparg(&arg); | |
9483 if (group == AUGROUP_ERROR) | |
9484 return NULL; | |
9485 /* If there only is a group name that's what we expand. */ | |
9486 if (*arg == NUL && group != AUGROUP_ALL && !vim_iswhite(arg[-1])) | |
9487 { | |
9488 arg = p; | |
9489 group = AUGROUP_ALL; | |
9490 } | |
9491 | |
9492 /* skip over event name */ | |
9493 for (p = arg; *p != NUL && !vim_iswhite(*p); ++p) | |
9494 if (*p == ',') | |
9495 arg = p + 1; | |
9496 if (*p == NUL) | |
9497 { | |
9498 if (group == AUGROUP_ALL) | |
9499 include_groups = TRUE; | |
9500 xp->xp_context = EXPAND_EVENTS; /* expand event name */ | |
9501 xp->xp_pattern = arg; | |
9502 return NULL; | |
9503 } | |
9504 | |
9505 /* skip over pattern */ | |
9506 arg = skipwhite(p); | |
9507 while (*arg && (!vim_iswhite(*arg) || arg[-1] == '\\')) | |
9508 arg++; | |
9509 if (*arg) | |
9510 return arg; /* expand (next) command */ | |
9511 | |
9512 if (doautocmd) | |
9513 xp->xp_context = EXPAND_FILES; /* expand file names */ | |
9514 else | |
9515 xp->xp_context = EXPAND_NOTHING; /* pattern is not expanded */ | |
9516 return NULL; | |
9517 } | |
9518 | |
9519 /* | |
9520 * Function given to ExpandGeneric() to obtain the list of event names. | |
9521 */ | |
9522 char_u * | |
9523 get_event_name(xp, idx) | |
1880 | 9524 expand_T *xp UNUSED; |
7 | 9525 int idx; |
9526 { | |
9527 if (idx < augroups.ga_len) /* First list group names, if wanted */ | |
9528 { | |
9529 if (!include_groups || AUGROUP_NAME(idx) == NULL) | |
9530 return (char_u *)""; /* skip deleted entries */ | |
9531 return AUGROUP_NAME(idx); /* return a name */ | |
9532 } | |
9533 return (char_u *)event_names[idx - augroups.ga_len].name; | |
9534 } | |
9535 | |
9536 #endif /* FEAT_CMDL_COMPL */ | |
9537 | |
9538 /* | |
615 | 9539 * Return TRUE if autocmd is supported. |
9540 */ | |
9541 int | |
9542 autocmd_supported(name) | |
9543 char_u *name; | |
9544 { | |
9545 char_u *p; | |
9546 | |
9547 return (event_name2nr(name, &p) != NUM_EVENTS); | |
9548 } | |
9549 | |
9550 /* | |
612 | 9551 * Return TRUE if an autocommand is defined for a group, event and |
9552 * pattern: The group can be omitted to accept any group. "event" and "pattern" | |
9553 * can be NULL to accept any event and pattern. "pattern" can be NULL to accept | |
9554 * any pattern. Buffer-local patterns <buffer> or <buffer=N> are accepted. | |
9555 * Used for: | |
9556 * exists("#Group") or | |
9557 * exists("#Group#Event") or | |
9558 * exists("#Group#Event#pat") or | |
9559 * exists("#Event") or | |
9560 * exists("#Event#pat") | |
7 | 9561 */ |
9562 int | |
612 | 9563 au_exists(arg) |
9564 char_u *arg; | |
7 | 9565 { |
612 | 9566 char_u *arg_save; |
9567 char_u *pattern = NULL; | |
7 | 9568 char_u *event_name; |
9569 char_u *p; | |
661 | 9570 event_T event; |
7 | 9571 AutoPat *ap; |
40 | 9572 buf_T *buflocal_buf = NULL; |
612 | 9573 int group; |
9574 int retval = FALSE; | |
9575 | |
615 | 9576 /* Make a copy so that we can change the '#' chars to a NUL. */ |
612 | 9577 arg_save = vim_strsave(arg); |
9578 if (arg_save == NULL) | |
9579 return FALSE; | |
615 | 9580 p = vim_strchr(arg_save, '#'); |
612 | 9581 if (p != NULL) |
9582 *p++ = NUL; | |
9583 | |
9584 /* First, look for an autocmd group name */ | |
9585 group = au_find_group(arg_save); | |
9586 if (group == AUGROUP_ERROR) | |
9587 { | |
9588 /* Didn't match a group name, assume the first argument is an event. */ | |
9589 group = AUGROUP_ALL; | |
9590 event_name = arg_save; | |
9591 } | |
9592 else | |
9593 { | |
9594 if (p == NULL) | |
9595 { | |
9596 /* "Group": group name is present and it's recognized */ | |
9597 retval = TRUE; | |
9598 goto theend; | |
9599 } | |
9600 | |
9601 /* Must be "Group#Event" or "Group#Event#pat". */ | |
9602 event_name = p; | |
9603 p = vim_strchr(event_name, '#'); | |
9604 if (p != NULL) | |
9605 *p++ = NUL; /* "Group#Event#pat" */ | |
9606 } | |
9607 | |
9608 pattern = p; /* "pattern" is NULL when there is no pattern */ | |
7 | 9609 |
9610 /* find the index (enum) for the event name */ | |
9611 event = event_name2nr(event_name, &p); | |
9612 | |
9613 /* return FALSE if the event name is not recognized */ | |
612 | 9614 if (event == NUM_EVENTS) |
9615 goto theend; | |
7 | 9616 |
9617 /* Find the first autocommand for this event. | |
9618 * If there isn't any, return FALSE; | |
9619 * If there is one and no pattern given, return TRUE; */ | |
9620 ap = first_autopat[(int)event]; | |
9621 if (ap == NULL) | |
612 | 9622 goto theend; |
7 | 9623 |
40 | 9624 /* if pattern is "<buffer>", special handling is needed which uses curbuf */ |
9625 /* for pattern "<buffer=N>, fnamecmp() will work fine */ | |
1962 | 9626 if (pattern != NULL && STRICMP(pattern, "<buffer>") == 0) |
40 | 9627 buflocal_buf = curbuf; |
9628 | |
7 | 9629 /* Check if there is an autocommand with the given pattern. */ |
9630 for ( ; ap != NULL; ap = ap->next) | |
40 | 9631 /* only use a pattern when it has not been removed and has commands. */ |
9632 /* For buffer-local autocommands, fnamecmp() works fine. */ | |
7 | 9633 if (ap->pat != NULL && ap->cmds != NULL |
612 | 9634 && (group == AUGROUP_ALL || ap->group == group) |
1962 | 9635 && (pattern == NULL |
9636 || (buflocal_buf == NULL | |
9637 ? fnamecmp(ap->pat, pattern) == 0 | |
9638 : ap->buflocal_nr == buflocal_buf->b_fnum))) | |
612 | 9639 { |
9640 retval = TRUE; | |
9641 break; | |
9642 } | |
9643 | |
9644 theend: | |
9645 vim_free(arg_save); | |
9646 return retval; | |
7 | 9647 } |
40 | 9648 |
934 | 9649 #else /* FEAT_AUTOCMD */ |
9650 | |
9651 /* | |
9652 * Prepare for executing commands for (hidden) buffer "buf". | |
9653 * This is the non-autocommand version, it simply saves "curbuf" and sets | |
9654 * "curbuf" and "curwin" to match "buf". | |
9655 */ | |
9656 void | |
9657 aucmd_prepbuf(aco, buf) | |
9658 aco_save_T *aco; /* structure to save values in */ | |
9659 buf_T *buf; /* new curbuf */ | |
9660 { | |
1906 | 9661 aco->save_curbuf = curbuf; |
9662 --curbuf->b_nwindows; | |
934 | 9663 curbuf = buf; |
9664 curwin->w_buffer = buf; | |
1906 | 9665 ++curbuf->b_nwindows; |
934 | 9666 } |
9667 | |
9668 /* | |
9669 * Restore after executing commands for a (hidden) buffer. | |
9670 * This is the non-autocommand version. | |
9671 */ | |
9672 void | |
9673 aucmd_restbuf(aco) | |
9674 aco_save_T *aco; /* structure holding saved values */ | |
9675 { | |
1906 | 9676 --curbuf->b_nwindows; |
9677 curbuf = aco->save_curbuf; | |
934 | 9678 curwin->w_buffer = curbuf; |
1906 | 9679 ++curbuf->b_nwindows; |
934 | 9680 } |
9681 | |
7 | 9682 #endif /* FEAT_AUTOCMD */ |
9683 | |
934 | 9684 |
7 | 9685 #if defined(FEAT_AUTOCMD) || defined(FEAT_WILDIGN) || defined(PROTO) |
9686 /* | |
153 | 9687 * Try matching a filename with a "pattern" ("prog" is NULL), or use the |
9688 * precompiled regprog "prog" ("pattern" is NULL). That avoids calling | |
9689 * vim_regcomp() often. | |
7 | 9690 * Used for autocommands and 'wildignore'. |
9691 * Returns TRUE if there is a match, FALSE otherwise. | |
9692 */ | |
9693 int | |
153 | 9694 match_file_pat(pattern, prog, fname, sfname, tail, allow_dirs) |
7 | 9695 char_u *pattern; /* pattern to match with */ |
153 | 9696 regprog_T *prog; /* pre-compiled regprog or NULL */ |
7 | 9697 char_u *fname; /* full path of file name */ |
9698 char_u *sfname; /* short file name or NULL */ | |
9699 char_u *tail; /* tail of path */ | |
9700 int allow_dirs; /* allow matching with dir */ | |
9701 { | |
9702 regmatch_T regmatch; | |
9703 int result = FALSE; | |
9704 #ifdef FEAT_OSFILETYPE | |
9705 int no_pattern = FALSE; /* TRUE if check is filetype only */ | |
9706 char_u *type_start; | |
9707 char_u c; | |
9708 int match = FALSE; | |
9709 #endif | |
9710 | |
9711 #ifdef CASE_INSENSITIVE_FILENAME | |
9712 regmatch.rm_ic = TRUE; /* Always ignore case */ | |
9713 #else | |
9714 regmatch.rm_ic = FALSE; /* Don't ever ignore case */ | |
9715 #endif | |
9716 #ifdef FEAT_OSFILETYPE | |
9717 if (*pattern == '<') | |
9718 { | |
9719 /* There is a filetype condition specified with this pattern. | |
9720 * Check the filetype matches first. If not, don't bother with the | |
9721 * pattern (set regprog to NULL). | |
9722 * Always use magic for the regexp. | |
9723 */ | |
9724 | |
9725 for (type_start = pattern + 1; (c = *pattern); pattern++) | |
9726 { | |
9727 if ((c == ';' || c == '>') && match == FALSE) | |
9728 { | |
9729 *pattern = NUL; /* Terminate the string */ | |
9730 match = mch_check_filetype(fname, type_start); | |
9731 *pattern = c; /* Restore the terminator */ | |
9732 type_start = pattern + 1; | |
9733 } | |
9734 if (c == '>') | |
9735 break; | |
9736 } | |
9737 | |
9738 /* (c should never be NUL, but check anyway) */ | |
9739 if (match == FALSE || c == NUL) | |
9740 regmatch.regprog = NULL; /* Doesn't match - don't check pat. */ | |
9741 else if (*pattern == NUL) | |
9742 { | |
9743 regmatch.regprog = NULL; /* Vim will try to free regprog later */ | |
9744 no_pattern = TRUE; /* Always matches - don't check pat. */ | |
9745 } | |
9746 else | |
9747 regmatch.regprog = vim_regcomp(pattern + 1, RE_MAGIC); | |
9748 } | |
9749 else | |
9750 #endif | |
153 | 9751 { |
9752 if (prog != NULL) | |
9753 regmatch.regprog = prog; | |
9754 else | |
9755 regmatch.regprog = vim_regcomp(pattern, RE_MAGIC); | |
9756 } | |
7 | 9757 |
9758 /* | |
9759 * Try for a match with the pattern with: | |
9760 * 1. the full file name, when the pattern has a '/'. | |
9761 * 2. the short file name, when the pattern has a '/'. | |
9762 * 3. the tail of the file name, when the pattern has no '/'. | |
9763 */ | |
9764 if ( | |
9765 #ifdef FEAT_OSFILETYPE | |
9766 /* If the check is for a filetype only and we don't care | |
9767 * about the path then skip all the regexp stuff. | |
9768 */ | |
9769 no_pattern || | |
9770 #endif | |
9771 (regmatch.regprog != NULL | |
9772 && ((allow_dirs | |
9773 && (vim_regexec(®match, fname, (colnr_T)0) | |
9774 || (sfname != NULL | |
9775 && vim_regexec(®match, sfname, (colnr_T)0)))) | |
9776 || (!allow_dirs && vim_regexec(®match, tail, (colnr_T)0))))) | |
9777 result = TRUE; | |
9778 | |
153 | 9779 if (prog == NULL) |
9780 vim_free(regmatch.regprog); | |
7 | 9781 return result; |
9782 } | |
9783 #endif | |
9784 | |
9785 #if defined(FEAT_WILDIGN) || defined(PROTO) | |
9786 /* | |
9787 * Return TRUE if a file matches with a pattern in "list". | |
9788 * "list" is a comma-separated list of patterns, like 'wildignore'. | |
9789 * "sfname" is the short file name or NULL, "ffname" the long file name. | |
9790 */ | |
9791 int | |
9792 match_file_list(list, sfname, ffname) | |
9793 char_u *list; | |
9794 char_u *sfname; | |
9795 char_u *ffname; | |
9796 { | |
9797 char_u buf[100]; | |
9798 char_u *tail; | |
9799 char_u *regpat; | |
9800 char allow_dirs; | |
9801 int match; | |
9802 char_u *p; | |
9803 | |
9804 tail = gettail(sfname); | |
9805 | |
9806 /* try all patterns in 'wildignore' */ | |
9807 p = list; | |
9808 while (*p) | |
9809 { | |
9810 copy_option_part(&p, buf, 100, ","); | |
9811 regpat = file_pat_to_reg_pat(buf, NULL, &allow_dirs, FALSE); | |
9812 if (regpat == NULL) | |
9813 break; | |
153 | 9814 match = match_file_pat(regpat, NULL, ffname, sfname, |
9815 tail, (int)allow_dirs); | |
7 | 9816 vim_free(regpat); |
9817 if (match) | |
9818 return TRUE; | |
9819 } | |
9820 return FALSE; | |
9821 } | |
9822 #endif | |
9823 | |
9824 /* | |
9825 * Convert the given pattern "pat" which has shell style wildcards in it, into | |
9826 * a regular expression, and return the result in allocated memory. If there | |
9827 * is a directory path separator to be matched, then TRUE is put in | |
9828 * allow_dirs, otherwise FALSE is put there -- webb. | |
9829 * Handle backslashes before special characters, like "\*" and "\ ". | |
9830 * | |
9831 * If FEAT_OSFILETYPE defined then pass initial <type> through unchanged. Eg: | |
9832 * '<html>myfile' becomes '<html>^myfile$' -- leonard. | |
9833 * | |
9834 * Returns NULL when out of memory. | |
9835 */ | |
9836 char_u * | |
9837 file_pat_to_reg_pat(pat, pat_end, allow_dirs, no_bslash) | |
9838 char_u *pat; | |
9839 char_u *pat_end; /* first char after pattern or NULL */ | |
9840 char *allow_dirs; /* Result passed back out in here */ | |
1877 | 9841 int no_bslash UNUSED; /* Don't use a backward slash as pathsep */ |
7 | 9842 { |
9843 int size; | |
9844 char_u *endp; | |
9845 char_u *reg_pat; | |
9846 char_u *p; | |
9847 int i; | |
9848 int nested = 0; | |
9849 int add_dollar = TRUE; | |
9850 #ifdef FEAT_OSFILETYPE | |
9851 int check_length = 0; | |
9852 #endif | |
9853 | |
9854 if (allow_dirs != NULL) | |
9855 *allow_dirs = FALSE; | |
9856 if (pat_end == NULL) | |
9857 pat_end = pat + STRLEN(pat); | |
9858 | |
9859 #ifdef FEAT_OSFILETYPE | |
9860 /* Find out how much of the string is the filetype check */ | |
9861 if (*pat == '<') | |
9862 { | |
9863 /* Count chars until the next '>' */ | |
9864 for (p = pat + 1; p < pat_end && *p != '>'; p++) | |
9865 ; | |
9866 if (p < pat_end) | |
9867 { | |
9868 /* Pattern is of the form <.*>.* */ | |
9869 check_length = p - pat + 1; | |
9870 if (p + 1 >= pat_end) | |
9871 { | |
9872 /* The 'pattern' is a filetype check ONLY */ | |
9873 reg_pat = (char_u *)alloc(check_length + 1); | |
9874 if (reg_pat != NULL) | |
9875 { | |
9876 mch_memmove(reg_pat, pat, (size_t)check_length); | |
9877 reg_pat[check_length] = NUL; | |
9878 } | |
9879 return reg_pat; | |
9880 } | |
9881 } | |
9882 /* else: there was no closing '>' - assume it was a normal pattern */ | |
9883 | |
9884 } | |
9885 pat += check_length; | |
9886 size = 2 + check_length; | |
9887 #else | |
9888 size = 2; /* '^' at start, '$' at end */ | |
9889 #endif | |
9890 | |
9891 for (p = pat; p < pat_end; p++) | |
9892 { | |
9893 switch (*p) | |
9894 { | |
9895 case '*': | |
9896 case '.': | |
9897 case ',': | |
9898 case '{': | |
9899 case '}': | |
9900 case '~': | |
9901 size += 2; /* extra backslash */ | |
9902 break; | |
9903 #ifdef BACKSLASH_IN_FILENAME | |
9904 case '\\': | |
9905 case '/': | |
9906 size += 4; /* could become "[\/]" */ | |
9907 break; | |
9908 #endif | |
9909 default: | |
9910 size++; | |
9911 # ifdef FEAT_MBYTE | |
474 | 9912 if (enc_dbcs != 0 && (*mb_ptr2len)(p) > 1) |
7 | 9913 { |
9914 ++p; | |
9915 ++size; | |
9916 } | |
9917 # endif | |
9918 break; | |
9919 } | |
9920 } | |
9921 reg_pat = alloc(size + 1); | |
9922 if (reg_pat == NULL) | |
9923 return NULL; | |
9924 | |
9925 #ifdef FEAT_OSFILETYPE | |
9926 /* Copy the type check in to the start. */ | |
9927 if (check_length) | |
9928 mch_memmove(reg_pat, pat - check_length, (size_t)check_length); | |
9929 i = check_length; | |
9930 #else | |
9931 i = 0; | |
9932 #endif | |
9933 | |
9934 if (pat[0] == '*') | |
9935 while (pat[0] == '*' && pat < pat_end - 1) | |
9936 pat++; | |
9937 else | |
9938 reg_pat[i++] = '^'; | |
9939 endp = pat_end - 1; | |
9940 if (*endp == '*') | |
9941 { | |
9942 while (endp - pat > 0 && *endp == '*') | |
9943 endp--; | |
9944 add_dollar = FALSE; | |
9945 } | |
9946 for (p = pat; *p && nested >= 0 && p <= endp; p++) | |
9947 { | |
9948 switch (*p) | |
9949 { | |
9950 case '*': | |
9951 reg_pat[i++] = '.'; | |
9952 reg_pat[i++] = '*'; | |
444 | 9953 while (p[1] == '*') /* "**" matches like "*" */ |
9954 ++p; | |
7 | 9955 break; |
9956 case '.': | |
9957 #ifdef RISCOS | |
9958 if (allow_dirs != NULL) | |
9959 *allow_dirs = TRUE; | |
9960 /* FALLTHROUGH */ | |
9961 #endif | |
9962 case '~': | |
9963 reg_pat[i++] = '\\'; | |
9964 reg_pat[i++] = *p; | |
9965 break; | |
9966 case '?': | |
9967 #ifdef RISCOS | |
9968 case '#': | |
9969 #endif | |
9970 reg_pat[i++] = '.'; | |
9971 break; | |
9972 case '\\': | |
9973 if (p[1] == NUL) | |
9974 break; | |
9975 #ifdef BACKSLASH_IN_FILENAME | |
9976 if (!no_bslash) | |
9977 { | |
9978 /* translate: | |
9979 * "\x" to "\\x" e.g., "dir\file" | |
9980 * "\*" to "\\.*" e.g., "dir\*.c" | |
9981 * "\?" to "\\." e.g., "dir\??.c" | |
9982 * "\+" to "\+" e.g., "fileX\+.c" | |
9983 */ | |
9984 if ((vim_isfilec(p[1]) || p[1] == '*' || p[1] == '?') | |
9985 && p[1] != '+') | |
9986 { | |
9987 reg_pat[i++] = '['; | |
9988 reg_pat[i++] = '\\'; | |
9989 reg_pat[i++] = '/'; | |
9990 reg_pat[i++] = ']'; | |
9991 if (allow_dirs != NULL) | |
9992 *allow_dirs = TRUE; | |
9993 break; | |
9994 } | |
9995 } | |
9996 #endif | |
9997 if (*++p == '?' | |
9998 #ifdef BACKSLASH_IN_FILENAME | |
9999 && no_bslash | |
10000 #endif | |
10001 ) | |
10002 reg_pat[i++] = '?'; | |
10003 else | |
10004 if (*p == ',') | |
10005 reg_pat[i++] = ','; | |
10006 else | |
10007 { | |
10008 if (allow_dirs != NULL && vim_ispathsep(*p) | |
10009 #ifdef BACKSLASH_IN_FILENAME | |
10010 && (!no_bslash || *p != '\\') | |
10011 #endif | |
10012 ) | |
10013 *allow_dirs = TRUE; | |
10014 reg_pat[i++] = '\\'; | |
10015 reg_pat[i++] = *p; | |
10016 } | |
10017 break; | |
10018 #ifdef BACKSLASH_IN_FILENAME | |
10019 case '/': | |
10020 reg_pat[i++] = '['; | |
10021 reg_pat[i++] = '\\'; | |
10022 reg_pat[i++] = '/'; | |
10023 reg_pat[i++] = ']'; | |
10024 if (allow_dirs != NULL) | |
10025 *allow_dirs = TRUE; | |
10026 break; | |
10027 #endif | |
10028 case '{': | |
10029 reg_pat[i++] = '\\'; | |
10030 reg_pat[i++] = '('; | |
10031 nested++; | |
10032 break; | |
10033 case '}': | |
10034 reg_pat[i++] = '\\'; | |
10035 reg_pat[i++] = ')'; | |
10036 --nested; | |
10037 break; | |
10038 case ',': | |
10039 if (nested) | |
10040 { | |
10041 reg_pat[i++] = '\\'; | |
10042 reg_pat[i++] = '|'; | |
10043 } | |
10044 else | |
10045 reg_pat[i++] = ','; | |
10046 break; | |
10047 default: | |
10048 # ifdef FEAT_MBYTE | |
474 | 10049 if (enc_dbcs != 0 && (*mb_ptr2len)(p) > 1) |
7 | 10050 reg_pat[i++] = *p++; |
10051 else | |
10052 # endif | |
10053 if (allow_dirs != NULL && vim_ispathsep(*p)) | |
10054 *allow_dirs = TRUE; | |
10055 reg_pat[i++] = *p; | |
10056 break; | |
10057 } | |
10058 } | |
10059 if (add_dollar) | |
10060 reg_pat[i++] = '$'; | |
10061 reg_pat[i] = NUL; | |
10062 if (nested != 0) | |
10063 { | |
10064 if (nested < 0) | |
10065 EMSG(_("E219: Missing {.")); | |
10066 else | |
10067 EMSG(_("E220: Missing }.")); | |
10068 vim_free(reg_pat); | |
10069 reg_pat = NULL; | |
10070 } | |
10071 return reg_pat; | |
10072 } |