1 /* vi:set ts=8 sts=4 sw=4:
3 * VIM - Vi IMproved by Bram Moolenaar
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.
11 * fileio.c: read from and write to a file
14 #if defined(MSDOS) || defined(WIN16) || defined(WIN32) || defined(_WIN64)
15 # include "vimio.h" /* for lseek(), must be before vim.h */
19 # include "vimio.h" /* for mktemp(), CJW 1997-12-03 */
25 # include <limits.h> /* for SSIZE_MAX */
28 #if defined(HAVE_UTIME) && defined(HAVE_UTIME_H)
29 # include <utime.h> /* for struct utimbuf */
32 #define BUFSIZE 8192 /* size of normal write buffer */
33 #define SMBUFSIZE 256 /* size of emergency write buffer */
36 # define CRYPT_MAGIC "VimCrypt~01!" /* "01" is the version nr */
37 # define CRYPT_MAGIC_LEN 12 /* must be multiple of 4! */
40 /* Is there any system that doesn't have access()? */
41 #define USE_MCH_ACCESS
43 #if defined(sun) && defined(S_ISCHR)
44 # define OPEN_CHR_FILES
45 static int is_dev_fd_file(char_u
*fname
);
48 static char_u
*next_fenc
__ARGS((char_u
**pp
));
50 static char_u
*readfile_charconvert
__ARGS((char_u
*fname
, char_u
*fenc
, int *fdp
));
54 static void check_marks_read
__ARGS((void));
57 static char_u
*check_for_cryptkey
__ARGS((char_u
*cryptkey
, char_u
*ptr
, long *sizep
, long *filesizep
, int newfile
));
60 static void set_file_time
__ARGS((char_u
*fname
, time_t atime
, time_t mtime
));
62 static int set_rw_fname
__ARGS((char_u
*fname
, char_u
*sfname
));
63 static int msg_add_fileformat
__ARGS((int eol_type
));
64 static void msg_add_eol
__ARGS((void));
65 static int check_mtime
__ARGS((buf_T
*buf
, struct stat
*s
));
66 static int time_differs
__ARGS((long t1
, long t2
));
68 static int apply_autocmds_exarg
__ARGS((event_T event
, char_u
*fname
, char_u
*fname_io
, int force
, buf_T
*buf
, exarg_T
*eap
));
69 static int au_find_group
__ARGS((char_u
*name
));
71 # define AUGROUP_DEFAULT -1 /* default autocmd group */
72 # define AUGROUP_ERROR -2 /* erroneous autocmd group */
73 # define AUGROUP_ALL -3 /* all autocmd groups */
76 #if defined(FEAT_CRYPT) || defined(FEAT_MBYTE)
78 # define FIO_LATIN1 0x01 /* convert Latin1 */
79 # define FIO_UTF8 0x02 /* convert UTF-8 */
80 # define FIO_UCS2 0x04 /* convert UCS-2 */
81 # define FIO_UCS4 0x08 /* convert UCS-4 */
82 # define FIO_UTF16 0x10 /* convert UTF-16 */
84 # define FIO_CODEPAGE 0x20 /* convert MS-Windows codepage */
85 # define FIO_PUT_CP(x) (((x) & 0xffff) << 16) /* put codepage in top word */
86 # define FIO_GET_CP(x) (((x)>>16) & 0xffff) /* get codepage from top word */
89 # define FIO_MACROMAN 0x20 /* convert MacRoman */
91 # define FIO_ENDIAN_L 0x80 /* little endian */
92 # define FIO_ENCRYPTED 0x1000 /* encrypt written bytes */
93 # define FIO_NOCONVERT 0x2000 /* skip encoding conversion */
94 # define FIO_UCSBOM 0x4000 /* check for BOM at start of file */
95 # define FIO_ALL -1 /* allow all formats */
98 /* When converting, a read() or write() may leave some bytes to be converted
99 * for the next call. The value is guessed... */
100 #define CONV_RESTLEN 30
102 /* We have to guess how much a sequence of bytes may expand when converting
103 * with iconv() to be able to allocate a buffer. */
107 * Structure to pass arguments from buf_write() to buf_write_bytes().
111 int bw_fd
; /* file descriptor */
112 char_u
*bw_buf
; /* buffer with data to be written */
113 int bw_len
; /* length of data */
115 int bw_flags
; /* FIO_ flags */
118 char_u bw_rest
[CONV_RESTLEN
]; /* not converted bytes */
119 int bw_restlen
; /* nr of bytes in bw_rest[] */
120 int bw_first
; /* first write call */
121 char_u
*bw_conv_buf
; /* buffer for writing converted chars */
122 int bw_conv_buflen
; /* size of bw_conv_buf */
123 int bw_conv_error
; /* set for conversion error */
124 linenr_T bw_conv_error_lnum
; /* first line with error or zero */
125 linenr_T bw_start_lnum
; /* line number at start of buffer */
127 iconv_t bw_iconv_fd
; /* descriptor for iconv() or -1 */
132 static int buf_write_bytes
__ARGS((struct bw_info
*ip
));
135 static linenr_T readfile_linenr
__ARGS((linenr_T linecnt
, char_u
*p
, char_u
*endp
));
136 static int ucs2bytes
__ARGS((unsigned c
, char_u
**pp
, int flags
));
137 static int need_conversion
__ARGS((char_u
*fenc
));
138 static int get_fio_flags
__ARGS((char_u
*ptr
));
139 static char_u
*check_for_bom
__ARGS((char_u
*p
, long size
, int *lenp
, int flags
));
140 static int make_bom
__ARGS((char_u
*buf
, char_u
*name
));
142 static int get_win_fio_flags
__ARGS((char_u
*ptr
));
145 static int get_mac_fio_flags
__ARGS((char_u
*ptr
));
148 static int move_lines
__ARGS((buf_T
*frombuf
, buf_T
*tobuf
));
150 static char *e_auchangedbuf
= N_("E812: Autocommands changed buffer or buffer name");
154 filemess(buf
, name
, s
, attr
)
164 msg_add_fname(buf
, name
); /* put file name in IObuff with quotes */
165 /* If it's extremely long, truncate it. */
166 if (STRLEN(IObuff
) > IOSIZE
- 80)
167 IObuff
[IOSIZE
- 80] = NUL
;
170 * For the first message may have to start a new line.
171 * For further ones overwrite the previous one, reset msg_scroll before
172 * calling filemess().
174 msg_scroll_save
= msg_scroll
;
175 if (shortmess(SHM_OVERALL
) && !exiting
&& p_verbose
== 0)
177 if (!msg_scroll
) /* wait a bit when overwriting an error msg */
178 check_for_delay(FALSE
);
180 msg_scroll
= msg_scroll_save
;
181 msg_scrolled_ign
= TRUE
;
182 /* may truncate the message to avoid a hit-return prompt */
183 msg_outtrans_attr(msg_may_trunc(FALSE
, IObuff
), attr
);
186 msg_scrolled_ign
= FALSE
;
190 * Read lines from file "fname" into the buffer after line "from".
192 * 1. We allocate blocks with lalloc, as big as possible.
193 * 2. Each block is filled with characters from the file with a single read().
194 * 3. The lines are inserted in the buffer with ml_append().
196 * (caller must check that fname != NULL, unless READ_STDIN is used)
198 * "lines_to_skip" is the number of lines that must be skipped
199 * "lines_to_read" is the number of lines that are appended
200 * When not recovering lines_to_skip is 0 and lines_to_read MAXLNUM.
203 * READ_NEW starting to edit a new buffer
204 * READ_FILTER reading filter output
205 * READ_STDIN read from stdin instead of a file
206 * READ_BUFFER read from curbuf instead of a file (converting after reading
208 * READ_DUMMY read into a dummy buffer (to check if file contents changed)
210 * return FAIL for failure, OK otherwise
213 readfile(fname
, sfname
, from
, lines_to_skip
, lines_to_read
, eap
, flags
)
217 linenr_T lines_to_skip
;
218 linenr_T lines_to_read
;
219 exarg_T
*eap
; /* can be NULL! */
223 int newfile
= (flags
& READ_NEW
);
225 int filtering
= (flags
& READ_FILTER
);
226 int read_stdin
= (flags
& READ_STDIN
);
227 int read_buffer
= (flags
& READ_BUFFER
);
228 int set_options
= newfile
|| read_buffer
229 || (eap
!= NULL
&& eap
->read_edit
);
230 linenr_T read_buf_lnum
= 1; /* next line to read from curbuf */
231 colnr_T read_buf_col
= 0; /* next char to read from this line */
233 linenr_T lnum
= from
;
234 char_u
*ptr
= NULL
; /* pointer into read buffer */
235 char_u
*buffer
= NULL
; /* read buffer */
236 char_u
*new_buffer
= NULL
; /* init to shut up gcc */
237 char_u
*line_start
= NULL
; /* init to shut up gcc */
238 int wasempty
; /* buffer was empty before reading */
243 int skip_read
= FALSE
;
245 char_u
*cryptkey
= NULL
;
247 int split
= 0; /* number of split lines */
248 #define UNKNOWN 0x0fffffff /* file size is unknown */
250 int error
= FALSE
; /* errors encountered */
251 int ff_error
= EOL_UNKNOWN
; /* file format with errors */
252 long linerest
= 0; /* remaining chars in line */
255 int swap_mode
= -1; /* protection bits for swap file */
259 int fileformat
= 0; /* end-of-line format */
260 int keep_fileformat
= FALSE
;
263 linenr_T skip_count
= 0;
264 linenr_T read_count
= 0;
265 int msg_save
= msg_scroll
;
266 linenr_T read_no_eol_lnum
= 0; /* non-zero lnum when last line of
267 * last read was missing the eol */
268 int try_mac
= (vim_strchr(p_ffs
, 'm') != NULL
);
269 int try_dos
= (vim_strchr(p_ffs
, 'd') != NULL
);
270 int try_unix
= (vim_strchr(p_ffs
, 'x') != NULL
);
271 int file_rewind
= FALSE
;
274 linenr_T conv_error
= 0; /* line nr with conversion error */
275 linenr_T illegal_byte
= 0; /* line nr with illegal byte */
276 int keep_dest_enc
= FALSE
; /* don't retry when char doesn't fit
277 in destination encoding */
278 int bad_char_behavior
= BAD_REPLACE
;
279 /* BAD_KEEP, BAD_DROP or character to
281 char_u
*tmpname
= NULL
; /* name of 'charconvert' output file */
283 char_u
*fenc
; /* fileencoding to use */
284 int fenc_alloced
; /* fenc_next is in allocated memory */
285 char_u
*fenc_next
= NULL
; /* next item in 'fencs' or NULL */
286 int advance_fenc
= FALSE
;
289 iconv_t iconv_fd
= (iconv_t
)-1; /* descriptor for iconv() or -1 */
291 int did_iconv
= FALSE
; /* TRUE when iconv() failed and trying
292 'charconvert' next */
295 int converted
= FALSE
; /* TRUE if conversion done */
296 int notconverted
= FALSE
; /* TRUE if conversion wanted but it
298 char_u conv_rest
[CONV_RESTLEN
];
299 int conv_restlen
= 0; /* nr of bytes in conv_rest[] */
303 /* Remember the initial values of curbuf, curbuf->b_ffname and
304 * curbuf->b_fname to detect whether they are altered as a result of
305 * executing nasty autocommands. Also check if "fname" and "sfname"
306 * point to one of these values. */
307 buf_T
*old_curbuf
= curbuf
;
308 char_u
*old_b_ffname
= curbuf
->b_ffname
;
309 char_u
*old_b_fname
= curbuf
->b_fname
;
310 int using_b_ffname
= (fname
== curbuf
->b_ffname
)
311 || (sfname
== curbuf
->b_ffname
);
312 int using_b_fname
= (fname
== curbuf
->b_fname
)
313 || (sfname
== curbuf
->b_fname
);
315 write_no_eol_lnum
= 0; /* in case it was set by the previous read */
318 * If there is no file name yet, use the one for the read file.
319 * BF_NOTEDITED is set to reflect this.
320 * Don't do this for a read from a filter.
321 * Only do this when 'cpoptions' contains the 'f' flag.
323 if (curbuf
->b_ffname
== NULL
326 && vim_strchr(p_cpo
, CPO_FNAMER
) != NULL
327 && !(flags
& READ_DUMMY
))
329 if (set_rw_fname(fname
, sfname
) == FAIL
)
333 /* After reading a file the cursor line changes but we don't want to
334 * display the line. */
335 ex_no_reprint
= TRUE
;
337 /* don't display the file info for another buffer now */
338 need_fileinfo
= FALSE
;
341 * For Unix: Use the short file name whenever possible.
342 * Avoids problems with networks and when directory names are changed.
343 * Don't do this for MS-DOS, a "cd" in a sub-shell may have moved us to
344 * another directory, which we don't detect.
348 #if defined(UNIX) || defined(__EMX__)
354 * The BufReadCmd and FileReadCmd events intercept the reading process by
355 * executing the associated commands instead.
357 if (!filtering
&& !read_stdin
&& !read_buffer
)
361 pos
= curbuf
->b_op_start
;
363 /* Set '[ mark to the line above where the lines go (line 1 if zero). */
364 curbuf
->b_op_start
.lnum
= ((from
== 0) ? 1 : from
);
365 curbuf
->b_op_start
.col
= 0;
369 if (apply_autocmds_exarg(EVENT_BUFREADCMD
, NULL
, sfname
,
372 return aborting() ? FAIL
: OK
;
377 else if (apply_autocmds_exarg(EVENT_FILEREADCMD
, sfname
, sfname
,
380 return aborting() ? FAIL
: OK
;
385 curbuf
->b_op_start
= pos
;
389 if ((shortmess(SHM_OVER
) || curbuf
->b_help
) && p_verbose
== 0)
390 msg_scroll
= FALSE
; /* overwrite previous file message */
392 msg_scroll
= TRUE
; /* don't overwrite previous file message */
395 * If the name ends in a path separator, we can't open it. Check here,
396 * because reading the file may actually work, but then creating the swap
397 * file may destroy it! Reported on MS-DOS and Win 95.
398 * If the name is too long we might crash further on, quit here.
400 if (fname
!= NULL
&& *fname
!= NUL
)
402 p
= fname
+ STRLEN(fname
);
403 if (after_pathsep(fname
, p
) || STRLEN(fname
) >= MAXPATHL
)
405 filemess(curbuf
, fname
, (char_u
*)_("Illegal file name"), 0);
407 msg_scroll
= msg_save
;
414 * On Unix it is possible to read a directory, so we have to
415 * check for it before the mch_open().
417 if (!read_stdin
&& !read_buffer
)
419 perm
= mch_getperm(fname
);
420 if (perm
>= 0 && !S_ISREG(perm
) /* not a regular file ... */
422 && !S_ISFIFO(perm
) /* ... or fifo */
425 && !S_ISSOCK(perm
) /* ... or socket */
427 # ifdef OPEN_CHR_FILES
428 && !(S_ISCHR(perm
) && is_dev_fd_file(fname
))
429 /* ... or a character special file named /dev/fd/<n> */
434 filemess(curbuf
, fname
, (char_u
*)_("is a directory"), 0);
436 filemess(curbuf
, fname
, (char_u
*)_("is not a file"), 0);
438 msg_scroll
= msg_save
;
442 # if defined(MSDOS) || defined(MSWIN) || defined(OS2)
444 * MS-Windows allows opening a device, but we will probably get stuck
447 if (!p_odev
&& mch_nodetype(fname
) == NODE_WRITABLE
)
449 filemess(curbuf
, fname
, (char_u
*)_("is a device (disabled with 'opendevice' option)"), 0);
451 msg_scroll
= msg_save
;
458 /* set default 'fileformat' */
461 if (eap
!= NULL
&& eap
->force_ff
!= 0)
462 set_fileformat(get_fileformat_force(curbuf
, eap
), OPT_LOCAL
);
463 else if (*p_ffs
!= NUL
)
464 set_fileformat(default_fileformat(), OPT_LOCAL
);
467 /* set or reset 'binary' */
468 if (eap
!= NULL
&& eap
->force_bin
!= 0)
470 int oldval
= curbuf
->b_p_bin
;
472 curbuf
->b_p_bin
= (eap
->force_bin
== FORCE_BIN
);
473 set_options_bin(oldval
, curbuf
->b_p_bin
, OPT_LOCAL
);
477 * When opening a new file we take the readonly flag from the file.
478 * Default is r/w, can be set to r/o below.
479 * Don't reset it when in readonly mode
480 * Only set/reset b_p_ro when BF_CHECK_RO is set.
482 check_readonly
= (newfile
&& (curbuf
->b_flags
& BF_CHECK_RO
));
483 if (check_readonly
&& !readonlymode
)
484 curbuf
->b_p_ro
= FALSE
;
486 if (newfile
&& !read_stdin
&& !read_buffer
)
488 /* Remember time of file.
489 * For RISCOS, also remember the filetype.
491 if (mch_stat((char *)fname
, &st
) >= 0)
493 buf_store_time(curbuf
, &st
, fname
);
494 curbuf
->b_mtime_read
= curbuf
->b_mtime
;
496 #if defined(RISCOS) && defined(FEAT_OSFILETYPE)
497 /* Read the filetype into the buffer local filetype option. */
498 mch_read_filetype(fname
);
502 * Use the protection bits of the original file for the swap file.
503 * This makes it possible for others to read the name of the
504 * edited file from the swapfile, but only if they can read the
506 * Remove the "write" and "execute" bits for group and others
507 * (they must not write the swapfile).
508 * Add the "read" and "write" bits for the user, otherwise we may
509 * not be able to write to the file ourselves.
510 * Setting the bits is done below, after creating the swap file.
512 swap_mode
= (st
.st_mode
& 0644) | 0600;
514 #ifdef FEAT_CW_EDITOR
515 /* Get the FSSpec on MacOS
516 * TODO: Update it properly when the buffer name changes
518 (void)GetFSSpecFromPath(curbuf
->b_ffname
, &curbuf
->b_FSSpec
);
521 curbuf
->b_fab_rfm
= st
.st_fab_rfm
;
522 curbuf
->b_fab_rat
= st
.st_fab_rat
;
523 curbuf
->b_fab_mrs
= st
.st_fab_mrs
;
529 curbuf
->b_mtime_read
= 0;
530 curbuf
->b_orig_size
= 0;
531 curbuf
->b_orig_mode
= 0;
534 /* Reset the "new file" flag. It will be set again below when the
535 * file doesn't exist. */
536 curbuf
->b_flags
&= ~(BF_NEW
| BF_NEW_W
);
540 * for UNIX: check readonly with perm and mch_access()
541 * for RISCOS: same as Unix, otherwise file gets re-datestamped!
542 * for MSDOS and Amiga: check readonly by trying to open the file for writing
544 file_readonly
= FALSE
;
547 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
548 /* Force binary I/O on stdin to avoid CR-LF -> LF conversion. */
549 setmode(0, O_BINARY
);
552 else if (!read_buffer
)
554 #ifdef USE_MCH_ACCESS
559 mch_access((char *)fname
, W_OK
))
560 file_readonly
= TRUE
;
561 fd
= mch_open((char *)fname
, O_RDONLY
| O_EXTRA
, 0);
565 || (fd
= mch_open((char *)fname
, O_RDWR
| O_EXTRA
, 0)) < 0)
567 file_readonly
= TRUE
;
569 fd
= mch_open((char *)fname
, O_RDONLY
| O_EXTRA
, 0);
574 if (fd
< 0) /* cannot open at all */
579 msg_scroll
= msg_save
;
582 * On MSDOS and Amiga we can't open a directory, check here.
584 isdir_f
= (mch_isdir(fname
));
585 perm
= mch_getperm(fname
); /* check if the file exists */
588 filemess(curbuf
, sfname
, (char_u
*)_("is a directory"), 0);
589 curbuf
->b_p_ro
= TRUE
; /* must use "w!" now */
598 * Set the 'new-file' flag, so that when the file has
599 * been created by someone else, a ":w" will complain.
601 curbuf
->b_flags
|= BF_NEW
;
603 /* Create a swap file now, so that other Vims are warned
604 * that we are editing this file. Don't do this for a
605 * "nofile" or "nowrite" buffer type. */
607 if (!bt_dontwrite(curbuf
))
610 check_need_swap(newfile
);
612 /* SwapExists autocommand may mess things up */
613 if (curbuf
!= old_curbuf
615 && (old_b_ffname
!= curbuf
->b_ffname
))
617 && (old_b_fname
!= curbuf
->b_fname
)))
619 EMSG(_(e_auchangedbuf
));
624 if (dir_of_file_exists(fname
))
625 filemess(curbuf
, sfname
, (char_u
*)_("[New File]"), 0);
627 filemess(curbuf
, sfname
,
628 (char_u
*)_("[New DIRECTORY]"), 0);
630 /* Even though this is a new file, it might have been
631 * edited before and deleted. Get the old marks. */
635 if (eap
!= NULL
&& eap
->force_enc
!= 0)
637 /* set forced 'fileencoding' */
638 fenc
= enc_canonize(eap
->cmd
+ eap
->force_enc
);
640 set_string_option_direct((char_u
*)"fenc", -1,
641 fenc
, OPT_FREE
|OPT_LOCAL
, 0);
646 apply_autocmds_exarg(EVENT_BUFNEWFILE
, sfname
, sfname
,
649 /* remember the current fileformat */
650 save_file_ff(curbuf
);
652 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
653 if (aborting()) /* autocmds may abort script processing */
656 return OK
; /* a new file is not an error */
660 filemess(curbuf
, sfname
, (char_u
*)(
662 (errno
== EFBIG
) ? _("[File too big]") :
664 _("[Permission Denied]")), 0);
665 curbuf
->b_p_ro
= TRUE
; /* must use "w!" now */
673 * Only set the 'ro' flag for readonly files the first time they are
674 * loaded. Help files always get readonly mode
676 if ((check_readonly
&& file_readonly
) || curbuf
->b_help
)
677 curbuf
->b_p_ro
= TRUE
;
681 /* Don't change 'eol' if reading from buffer as it will already be
682 * correctly set when reading stdin. */
685 curbuf
->b_p_eol
= TRUE
;
686 curbuf
->b_start_eol
= TRUE
;
689 curbuf
->b_p_bomb
= FALSE
;
690 curbuf
->b_start_bomb
= FALSE
;
694 /* Create a swap file now, so that other Vims are warned that we are
696 * Don't do this for a "nofile" or "nowrite" buffer type. */
698 if (!bt_dontwrite(curbuf
))
701 check_need_swap(newfile
);
703 if (!read_stdin
&& (curbuf
!= old_curbuf
704 || (using_b_ffname
&& (old_b_ffname
!= curbuf
->b_ffname
))
705 || (using_b_fname
&& (old_b_fname
!= curbuf
->b_fname
))))
707 EMSG(_(e_auchangedbuf
));
714 /* Set swap file protection bits after creating it. */
715 if (swap_mode
> 0 && curbuf
->b_ml
.ml_mfp
!= NULL
716 && curbuf
->b_ml
.ml_mfp
->mf_fname
!= NULL
)
717 (void)mch_setperm(curbuf
->b_ml
.ml_mfp
->mf_fname
, (long)swap_mode
);
721 #if defined(HAS_SWAP_EXISTS_ACTION)
722 /* If "Quit" selected at ATTENTION dialog, don't load the file */
723 if (swap_exists_action
== SEA_QUIT
)
725 if (!read_buffer
&& !read_stdin
)
731 ++no_wait_return
; /* don't wait for return yet */
734 * Set '[ mark to the line above where the lines go (line 1 if zero).
736 curbuf
->b_op_start
.lnum
= ((from
== 0) ? 1 : from
);
737 curbuf
->b_op_start
.col
= 0;
743 int n
= msg_scrolled
;
746 * The file must be closed again, the autocommands may want to change
747 * the file before reading it.
750 close(fd
); /* ignore errors */
753 * The output from the autocommands should not overwrite anything and
754 * should not be overwritten: Set msg_scroll, restore its value if no
759 apply_autocmds_exarg(EVENT_FILTERREADPRE
, NULL
, sfname
,
762 apply_autocmds_exarg(EVENT_STDINREADPRE
, NULL
, sfname
,
765 apply_autocmds_exarg(EVENT_BUFREADPRE
, NULL
, sfname
,
768 apply_autocmds_exarg(EVENT_FILEREADPRE
, sfname
, sfname
,
770 if (msg_scrolled
== n
)
774 if (aborting()) /* autocmds may abort script processing */
777 msg_scroll
= msg_save
;
778 curbuf
->b_p_ro
= TRUE
; /* must use "w!" now */
783 * Don't allow the autocommands to change the current buffer.
784 * Try to re-open the file.
786 * Don't allow the autocommands to change the buffer name either
787 * (cd for example) if it invalidates fname or sfname.
789 if (!read_stdin
&& (curbuf
!= old_curbuf
790 || (using_b_ffname
&& (old_b_ffname
!= curbuf
->b_ffname
))
791 || (using_b_fname
&& (old_b_fname
!= curbuf
->b_fname
))
792 || (fd
= mch_open((char *)fname
, O_RDONLY
| O_EXTRA
, 0)) < 0))
795 msg_scroll
= msg_save
;
797 EMSG(_("E200: *ReadPre autocommands made the file unreadable"));
799 EMSG(_("E201: *ReadPre autocommands must not change current buffer"));
800 curbuf
->b_p_ro
= TRUE
; /* must use "w!" now */
804 #endif /* FEAT_AUTOCMD */
806 /* Autocommands may add lines to the file, need to check if it is empty */
807 wasempty
= (curbuf
->b_ml
.ml_flags
& ML_EMPTY
);
809 if (!recoverymode
&& !filtering
&& !(flags
& READ_DUMMY
))
812 * Show the user that we are busy reading the input. Sometimes this
813 * may take a while. When reading from stdin another program may
814 * still be running, don't move the cursor to the last line, unless
815 * always using the GUI.
819 #ifndef ALWAYS_USE_GUI
820 mch_msg(_("Vim: Reading from stdin...\n"));
823 /* Also write a message in the GUI window, if there is one. */
824 if (gui
.in_use
&& !gui
.dying
&& !gui
.starting
)
826 p
= (char_u
*)_("Reading from stdin...");
827 gui_write(p
, (int)STRLEN(p
));
831 else if (!read_buffer
)
832 filemess(curbuf
, sfname
, (char_u
*)"", 0);
835 msg_scroll
= FALSE
; /* overwrite the file message */
838 * Set linecnt now, before the "retry" caused by a wrong guess for
839 * fileformat, and after the autocommands, which may change them.
841 linecnt
= curbuf
->b_ml
.ml_line_count
;
844 /* "++bad=" argument. */
845 if (eap
!= NULL
&& eap
->bad_char
!= 0)
847 bad_char_behavior
= eap
->bad_char
;
849 curbuf
->b_bad_char
= eap
->bad_char
;
852 curbuf
->b_bad_char
= 0;
855 * Decide which 'encoding' to use or use first.
857 if (eap
!= NULL
&& eap
->force_enc
!= 0)
859 fenc
= enc_canonize(eap
->cmd
+ eap
->force_enc
);
861 keep_dest_enc
= TRUE
;
863 else if (curbuf
->b_p_bin
)
865 fenc
= (char_u
*)""; /* binary: don't convert */
866 fenc_alloced
= FALSE
;
868 else if (curbuf
->b_help
)
870 char_u firstline
[80];
873 /* Help files are either utf-8 or latin1. Try utf-8 first, if this
874 * fails it must be latin1.
875 * Always do this when 'encoding' is "utf-8". Otherwise only do
876 * this when needed to avoid [converted] remarks all the time.
877 * It is needed when the first line contains non-ASCII characters.
878 * That is only in *.??x files. */
879 fenc
= (char_u
*)"latin1";
881 if (!c
&& !read_stdin
)
883 fc
= fname
[STRLEN(fname
) - 1];
884 if (TOLOWER_ASC(fc
) == 'x')
886 /* Read the first line (and a bit more). Immediately rewind to
887 * the start of the file. If the read() fails "len" is -1. */
888 len
= vim_read(fd
, firstline
, 80);
889 lseek(fd
, (off_t
)0L, SEEK_SET
);
890 for (p
= firstline
; p
< firstline
+ len
; ++p
)
902 fenc
= (char_u
*)"utf-8";
904 /* When the file is utf-8 but a character doesn't fit in
905 * 'encoding' don't retry. In help text editing utf-8 bytes
906 * doesn't make sense. */
908 keep_dest_enc
= TRUE
;
910 fenc_alloced
= FALSE
;
912 else if (*p_fencs
== NUL
)
914 fenc
= curbuf
->b_p_fenc
; /* use format from buffer */
915 fenc_alloced
= FALSE
;
919 fenc_next
= p_fencs
; /* try items in 'fileencodings' */
920 fenc
= next_fenc(&fenc_next
);
926 * Jump back here to retry reading the file in different ways.
928 * - encoding conversion failed: try another one from "fenc_next"
929 * - BOM detected and fenc was set, need to setup conversion
930 * - "fileformat" check failed: try another
932 * Variables set for special retry actions:
933 * "file_rewind" Rewind the file to start reading it again.
934 * "advance_fenc" Advance "fenc" using "fenc_next".
935 * "skip_read" Re-use already read bytes (BOM detected).
936 * "did_iconv" iconv() conversion failed, try 'charconvert'.
937 * "keep_fileformat" Don't reset "fileformat".
939 * Other status indicators:
940 * "tmpname" When != NULL did conversion with 'charconvert'.
941 * Output file has to be deleted afterwards.
942 * "iconv_fd" When != -1 did conversion with iconv().
953 else if (read_stdin
|| lseek(fd
, (off_t
)0L, SEEK_SET
) != 0)
955 /* Can't rewind the file, give up. */
959 /* Delete the previously read lines. */
961 ml_delete(lnum
--, FALSE
);
966 curbuf
->b_p_bomb
= FALSE
;
967 curbuf
->b_start_bomb
= FALSE
;
974 * When retrying with another "fenc" and the first time "fileformat"
978 keep_fileformat
= FALSE
;
981 if (eap
!= NULL
&& eap
->force_ff
!= 0)
983 fileformat
= get_fileformat_force(curbuf
, eap
);
984 try_unix
= try_dos
= try_mac
= FALSE
;
986 else if (curbuf
->b_p_bin
)
987 fileformat
= EOL_UNIX
; /* binary: use Unix format */
988 else if (*p_ffs
== NUL
)
989 fileformat
= get_fileformat(curbuf
);/* use format from buffer */
991 fileformat
= EOL_UNKNOWN
; /* detect from file */
996 if (iconv_fd
!= (iconv_t
)-1)
998 /* aborted conversion with iconv(), close the descriptor */
999 iconv_close(iconv_fd
);
1000 iconv_fd
= (iconv_t
)-1;
1007 * Try the next entry in 'fileencodings'.
1009 advance_fenc
= FALSE
;
1011 if (eap
!= NULL
&& eap
->force_enc
!= 0)
1013 /* Conversion given with "++cc=" wasn't possible, read
1014 * without conversion. */
1015 notconverted
= TRUE
;
1019 fenc
= (char_u
*)"";
1020 fenc_alloced
= FALSE
;
1026 if (fenc_next
!= NULL
)
1028 fenc
= next_fenc(&fenc_next
);
1029 fenc_alloced
= (fenc_next
!= NULL
);
1033 fenc
= (char_u
*)"";
1034 fenc_alloced
= FALSE
;
1037 if (tmpname
!= NULL
)
1039 mch_remove(tmpname
); /* delete converted file */
1046 * Conversion may be required when the encoding of the file is different
1047 * from 'encoding' or 'encoding' is UTF-16, UCS-2 or UCS-4.
1050 converted
= need_conversion(fenc
);
1054 /* "ucs-bom" means we need to check the first bytes of the file
1056 if (STRCMP(fenc
, ENC_UCSBOM
) == 0)
1057 fio_flags
= FIO_UCSBOM
;
1060 * Check if UCS-2/4 or Latin1 to UTF-8 conversion needs to be
1061 * done. This is handled below after read(). Prepare the
1062 * fio_flags to avoid having to parse the string each time.
1063 * Also check for Unicode to Latin1 conversion, because iconv()
1064 * appears not to handle this correctly. This works just like
1065 * conversion to UTF-8 except how the resulting character is put in
1068 else if (enc_utf8
|| STRCMP(p_enc
, "latin1") == 0)
1069 fio_flags
= get_fio_flags(fenc
);
1073 * Conversion from an MS-Windows codepage to UTF-8 or another codepage
1074 * is handled with MultiByteToWideChar().
1077 fio_flags
= get_win_fio_flags(fenc
);
1081 /* Conversion from Apple MacRoman to latin1 or UTF-8 */
1083 fio_flags
= get_mac_fio_flags(fenc
);
1088 * Try using iconv() if we can't convert internally.
1095 iconv_fd
= (iconv_t
)my_iconv_open(
1096 enc_utf8
? (char_u
*)"utf-8" : p_enc
, fenc
);
1101 * Use the 'charconvert' expression when conversion is required
1102 * and we can't do it internally or with iconv().
1104 if (fio_flags
== 0 && !read_stdin
&& !read_buffer
&& *p_ccv
!= NUL
1106 && iconv_fd
== (iconv_t
)-1
1113 /* Skip conversion when it's already done (retry for wrong
1115 if (tmpname
== NULL
)
1117 tmpname
= readfile_charconvert(fname
, fenc
, &fd
);
1118 if (tmpname
== NULL
)
1120 /* Conversion failed. Try another one. */
1121 advance_fenc
= TRUE
;
1124 /* Re-opening the original file failed! */
1125 EMSG(_("E202: Conversion made file unreadable!"));
1138 && iconv_fd
== (iconv_t
)-1
1142 /* Conversion wanted but we can't.
1143 * Try the next conversion in 'fileencodings' */
1144 advance_fenc
= TRUE
;
1150 /* Set "can_retry" when it's possible to rewind the file and try with
1151 * another "fenc" value. It's FALSE when no other "fenc" to try, reading
1152 * stdin or fixed at a specific encoding. */
1153 can_retry
= (*fenc
!= NUL
&& !read_stdin
&& !keep_dest_enc
);
1160 skip_count
= lines_to_skip
;
1161 read_count
= lines_to_read
;
1167 while (!error
&& !got_int
)
1170 * We allocate as much space for the file as we can get, plus
1171 * space for the old line plus room for one terminating NUL.
1172 * The amount is limited by the fact that read() only can read
1173 * upto max_unsigned characters (and other things).
1176 if (linerest
>= 0x7ff0)
1179 *ptr
= NL
; /* split line by inserting a NL */
1188 # if defined(SSIZE_MAX) && (SSIZE_MAX < 0x10000L)
1189 size
= SSIZE_MAX
; /* use max I/O size, 52K */
1191 size
= 0x10000L
; /* use buffer >= 64K */
1194 size
= 0x7ff0L
- linerest
; /* limit buffer to 32K */
1197 for ( ; size
>= 10; size
= (long)((long_u
)size
>> 1))
1199 if ((new_buffer
= lalloc((long_u
)(size
+ linerest
+ 1),
1203 if (new_buffer
== NULL
)
1205 do_outofmem_msg((long_u
)(size
* 2 + linerest
+ 1));
1209 if (linerest
) /* copy characters from the previous buffer */
1210 mch_memmove(new_buffer
, ptr
- linerest
, (size_t)linerest
);
1212 buffer
= new_buffer
;
1213 ptr
= buffer
+ linerest
;
1214 line_start
= buffer
;
1217 /* May need room to translate into.
1218 * For iconv() we don't really know the required space, use a
1219 * factor ICONV_MULT.
1220 * latin1 to utf-8: 1 byte becomes up to 2 bytes
1221 * utf-16 to utf-8: 2 bytes become up to 3 bytes, 4 bytes
1222 * become up to 4 bytes, size must be multiple of 2
1223 * ucs-2 to utf-8: 2 bytes become up to 3 bytes, size must be
1225 * ucs-4 to utf-8: 4 bytes become up to 6 bytes, size must be
1227 real_size
= (int)size
;
1229 if (iconv_fd
!= (iconv_t
)-1)
1230 size
= size
/ ICONV_MULT
;
1233 if (fio_flags
& FIO_LATIN1
)
1235 else if (fio_flags
& (FIO_UCS2
| FIO_UTF16
))
1236 size
= (size
* 2 / 3) & ~1;
1237 else if (fio_flags
& FIO_UCS4
)
1238 size
= (size
* 2 / 3) & ~3;
1239 else if (fio_flags
== FIO_UCSBOM
)
1240 size
= size
/ ICONV_MULT
; /* worst case */
1242 else if (fio_flags
& FIO_CODEPAGE
)
1243 size
= size
/ ICONV_MULT
; /* also worst case */
1246 else if (fio_flags
& FIO_MACROMAN
)
1247 size
= size
/ ICONV_MULT
; /* also worst case */
1252 if (conv_restlen
> 0)
1254 /* Insert unconverted bytes from previous line. */
1255 mch_memmove(ptr
, conv_rest
, conv_restlen
);
1256 ptr
+= conv_restlen
;
1257 size
-= conv_restlen
;
1264 * Read bytes from curbuf. Used for converting text read
1267 if (read_buf_lnum
> from
)
1277 p
= ml_get(read_buf_lnum
) + read_buf_col
;
1279 if ((int)tlen
+ n
+ 1 > size
)
1281 /* Filled up to "size", append partial line.
1282 * Change NL to NUL to reverse the effect done
1284 n
= (int)(size
- tlen
);
1285 for (ni
= 0; ni
< n
; ++ni
)
1290 ptr
[tlen
++] = p
[ni
];
1297 /* Append whole line and new-line. Change NL
1298 * to NUL to reverse the effect done below. */
1299 for (ni
= 0; ni
< n
; ++ni
)
1304 ptr
[tlen
++] = p
[ni
];
1308 if (++read_buf_lnum
> from
)
1310 /* When the last line didn't have an
1311 * end-of-line don't add it now either. */
1312 if (!curbuf
->b_p_eol
)
1324 * Read bytes from the file.
1326 size
= vim_read(fd
, ptr
, size
);
1331 if (size
< 0) /* read error */
1334 else if (conv_restlen
> 0)
1337 * Reached end-of-file but some trailing bytes could
1338 * not be converted. Truncated file?
1341 /* When we did a conversion report an error. */
1344 || iconv_fd
!= (iconv_t
)-1
1348 if (conv_error
== 0)
1349 conv_error
= curbuf
->b_ml
.ml_line_count
1352 /* Remember the first linenr with an illegal byte */
1353 else if (illegal_byte
== 0)
1354 illegal_byte
= curbuf
->b_ml
.ml_line_count
1356 if (bad_char_behavior
== BAD_DROP
)
1358 *(ptr
- conv_restlen
) = NUL
;
1363 /* Replace the trailing bytes with the replacement
1364 * character if we were converting; if we weren't,
1365 * leave the UTF8 checking code to do it, as it
1366 * works slightly differently. */
1367 if (bad_char_behavior
!= BAD_KEEP
&& (fio_flags
!= 0
1369 || iconv_fd
!= (iconv_t
)-1
1373 while (conv_restlen
> 0)
1375 *(--ptr
) = bad_char_behavior
;
1379 fio_flags
= 0; /* don't convert this */
1381 if (iconv_fd
!= (iconv_t
)-1)
1383 iconv_close(iconv_fd
);
1384 iconv_fd
= (iconv_t
)-1;
1394 * At start of file: Check for magic number of encryption.
1397 cryptkey
= check_for_cryptkey(cryptkey
, ptr
, &size
,
1398 &filesize
, newfile
);
1400 * Decrypt the read bytes.
1402 if (cryptkey
!= NULL
&& size
> 0)
1403 for (p
= ptr
; p
< ptr
+ size
; ++p
)
1411 * At start of file (or after crypt magic number): Check for BOM.
1412 * Also check for a BOM for other Unicode encodings, but not after
1413 * converting with 'charconvert' or when a BOM has already been
1418 || (filesize
== CRYPT_MAGIC_LEN
&& cryptkey
!= NULL
)
1421 && (fio_flags
== FIO_UCSBOM
1422 || (!curbuf
->b_p_bomb
1424 && (*fenc
== 'u' || (*fenc
== NUL
&& enc_utf8
)))))
1429 /* no BOM detection in a short file or in binary mode */
1430 if (size
< 2 || curbuf
->b_p_bin
)
1433 ccname
= check_for_bom(ptr
, size
, &blen
,
1434 fio_flags
== FIO_UCSBOM
? FIO_ALL
: get_fio_flags(fenc
));
1437 /* Remove BOM from the text */
1440 mch_memmove(ptr
, ptr
+ blen
, (size_t)size
);
1443 curbuf
->b_p_bomb
= TRUE
;
1444 curbuf
->b_start_bomb
= TRUE
;
1448 if (fio_flags
== FIO_UCSBOM
)
1452 /* No BOM detected: retry with next encoding. */
1453 advance_fenc
= TRUE
;
1457 /* BOM detected: set "fenc" and jump back */
1461 fenc_alloced
= FALSE
;
1463 /* retry reading without getting new bytes or rewinding */
1469 /* Include not converted bytes. */
1470 ptr
-= conv_restlen
;
1471 size
+= conv_restlen
;
1475 * Break here for a read error or end-of-file.
1483 if (iconv_fd
!= (iconv_t
)-1)
1486 * Attempt conversion of the read bytes to 'encoding' using
1494 fromp
= (char *)ptr
;
1498 to_size
= real_size
- size
;
1501 * If there is conversion error or not enough room try using
1502 * another conversion. Except for when there is no
1503 * alternative (help files).
1505 while ((iconv(iconv_fd
, (void *)&fromp
, &from_size
,
1507 == (size_t)-1 && ICONV_ERRNO
!= ICONV_EINVAL
)
1508 || from_size
> CONV_RESTLEN
)
1512 if (conv_error
== 0)
1513 conv_error
= readfile_linenr(linecnt
,
1514 ptr
, (char_u
*)top
);
1516 /* Deal with a bad byte and continue with the next. */
1519 if (bad_char_behavior
== BAD_KEEP
)
1521 *top
++ = *(fromp
- 1);
1524 else if (bad_char_behavior
!= BAD_DROP
)
1526 *top
++ = bad_char_behavior
;
1533 /* Some remaining characters, keep them for the next
1535 mch_memmove(conv_rest
, (char_u
*)fromp
, from_size
);
1536 conv_restlen
= (int)from_size
;
1539 /* move the linerest to before the converted characters */
1540 line_start
= ptr
- linerest
;
1541 mch_memmove(line_start
, buffer
, (size_t)linerest
);
1542 size
= (long)((char_u
*)top
- ptr
);
1547 if (fio_flags
& FIO_CODEPAGE
)
1552 int codepage
= FIO_GET_CP(fio_flags
);
1558 * Conversion from an MS-Windows codepage or UTF-8 to UTF-8 or
1559 * a codepage, using standard MS-Windows functions. This
1560 * requires two steps:
1561 * 1. convert from 'fileencoding' to ucs-2
1562 * 2. convert from ucs-2 to 'encoding'
1564 * Because there may be illegal bytes AND an incomplete byte
1565 * sequence at the end, we may have to do the conversion one
1566 * character at a time to get it right.
1569 /* Replacement string for WideCharToMultiByte(). */
1570 if (bad_char_behavior
> 0)
1571 replstr
[0] = bad_char_behavior
;
1577 * Move the bytes to the end of the buffer, so that we have
1578 * room to put the result at the start.
1580 src
= ptr
+ real_size
- size
;
1581 mch_memmove(src
, ptr
, size
);
1584 * Do the conversion.
1592 # ifdef CP_UTF8 /* VC 4.1 doesn't define CP_UTF8 */
1593 if (codepage
== CP_UTF8
)
1595 /* Handle CP_UTF8 input ourselves to be able to handle
1596 * trailing bytes properly.
1597 * Get one UTF-8 character from src. */
1598 bytelen
= (int)utf_ptr2len_len(src
, size
);
1601 /* Only got some bytes of a character. Normally
1602 * it's put in "conv_rest", but if it's too long
1603 * deal with it as if they were illegal bytes. */
1604 if (bytelen
<= CONV_RESTLEN
)
1607 /* weird overlong byte sequence */
1613 int u8c
= utf_ptr2char(src
);
1615 if (u8c
> 0xffff || (*src
>= 0x80 && bytelen
== 1))
1624 /* We don't know how long the byte sequence is, try
1625 * from one to three bytes. */
1626 for (bytelen
= 1; bytelen
<= size
&& bytelen
<= 3;
1629 ucs2len
= MultiByteToWideChar(codepage
,
1630 MB_ERR_INVALID_CHARS
,
1631 (LPCSTR
)src
, bytelen
,
1638 /* If we have only one byte then it's probably an
1639 * incomplete byte sequence. Otherwise discard
1640 * one byte as a bad character. */
1652 /* Convert "ucs2buf[ucs2len]" to 'enc' in "dst". */
1655 /* From UCS-2 to UTF-8. Cannot fail. */
1656 for (i
= 0; i
< ucs2len
; ++i
)
1657 dst
+= utf_char2bytes(ucs2buf
[i
], dst
);
1664 /* From UCS-2 to "enc_codepage". If the
1665 * conversion uses the default character "?",
1666 * the data doesn't fit in this encoding. */
1667 dstlen
= WideCharToMultiByte(enc_codepage
, 0,
1668 (LPCWSTR
)ucs2buf
, ucs2len
,
1669 (LPSTR
)dst
, (int)(src
- dst
),
1680 /* Deal with bytes we can't convert. */
1683 if (conv_error
== 0)
1684 conv_error
= readfile_linenr(linecnt
, ptr
, dst
);
1685 if (bad_char_behavior
!= BAD_DROP
)
1687 if (bad_char_behavior
== BAD_KEEP
)
1689 mch_memmove(dst
, src
, bytelen
);
1693 *dst
++ = bad_char_behavior
;
1703 /* An incomplete byte sequence remaining. */
1704 mch_memmove(conv_rest
, src
, size
);
1705 conv_restlen
= size
;
1708 /* The new size is equal to how much "dst" was advanced. */
1709 size
= (long)(dst
- ptr
);
1713 # ifdef MACOS_CONVERT
1714 if (fio_flags
& FIO_MACROMAN
)
1717 * Conversion from Apple MacRoman char encoding to UTF-8 or
1718 * latin1. This is in os_mac_conv.c.
1720 if (macroman2enc(ptr
, &size
, real_size
) == FAIL
)
1729 char_u
*tail
= NULL
;
1732 * "enc_utf8" set: Convert Unicode or Latin1 to UTF-8.
1733 * "enc_utf8" not set: Convert Unicode to Latin1.
1734 * Go from end to start through the buffer, because the number
1735 * of bytes may increase.
1736 * "dest" points to after where the UTF-8 bytes go, "p" points
1737 * to after the next character to convert.
1739 dest
= ptr
+ real_size
;
1740 if (fio_flags
== FIO_LATIN1
|| fio_flags
== FIO_UTF8
)
1743 if (fio_flags
== FIO_UTF8
)
1745 /* Check for a trailing incomplete UTF-8 sequence */
1746 tail
= ptr
+ size
- 1;
1747 while (tail
> ptr
&& (*tail
& 0xc0) == 0x80)
1749 if (tail
+ utf_byte2len(*tail
) <= ptr
+ size
)
1755 else if (fio_flags
& (FIO_UCS2
| FIO_UTF16
))
1757 /* Check for a trailing byte */
1758 p
= ptr
+ (size
& ~1);
1761 if ((fio_flags
& FIO_UTF16
) && p
> ptr
)
1763 /* Check for a trailing leading word */
1764 if (fio_flags
& FIO_ENDIAN_L
)
1774 if (u8c
>= 0xd800 && u8c
<= 0xdbff)
1782 /* Check for trailing 1, 2 or 3 bytes */
1783 p
= ptr
+ (size
& ~3);
1788 /* If there is a trailing incomplete sequence move it to
1792 conv_restlen
= (int)((ptr
+ size
) - tail
);
1793 mch_memmove(conv_rest
, (char_u
*)tail
, conv_restlen
);
1794 size
-= conv_restlen
;
1800 if (fio_flags
& FIO_LATIN1
)
1802 else if (fio_flags
& (FIO_UCS2
| FIO_UTF16
))
1804 if (fio_flags
& FIO_ENDIAN_L
)
1814 if ((fio_flags
& FIO_UTF16
)
1815 && u8c
>= 0xdc00 && u8c
<= 0xdfff)
1821 /* Missing leading word. */
1824 if (conv_error
== 0)
1825 conv_error
= readfile_linenr(linecnt
,
1827 if (bad_char_behavior
== BAD_DROP
)
1829 if (bad_char_behavior
!= BAD_KEEP
)
1830 u8c
= bad_char_behavior
;
1833 /* found second word of double-word, get the first
1834 * word and compute the resulting character */
1835 if (fio_flags
& FIO_ENDIAN_L
)
1843 u16c
+= (*--p
<< 8);
1845 u8c
= 0x10000 + ((u16c
& 0x3ff) << 10)
1848 /* Check if the word is indeed a leading word. */
1849 if (u16c
< 0xd800 || u16c
> 0xdbff)
1853 if (conv_error
== 0)
1854 conv_error
= readfile_linenr(linecnt
,
1856 if (bad_char_behavior
== BAD_DROP
)
1858 if (bad_char_behavior
!= BAD_KEEP
)
1859 u8c
= bad_char_behavior
;
1863 else if (fio_flags
& FIO_UCS4
)
1865 if (fio_flags
& FIO_ENDIAN_L
)
1868 u8c
+= (*--p
<< 16);
1872 else /* big endian */
1876 u8c
+= (*--p
<< 16);
1877 u8c
+= (*--p
<< 24);
1886 len
= utf_head_off(ptr
, p
);
1888 u8c
= utf_ptr2char(p
);
1891 /* Not a valid UTF-8 character, retry with
1892 * another fenc when possible, otherwise just
1893 * report the error. */
1896 if (conv_error
== 0)
1897 conv_error
= readfile_linenr(linecnt
,
1899 if (bad_char_behavior
== BAD_DROP
)
1901 if (bad_char_behavior
!= BAD_KEEP
)
1902 u8c
= bad_char_behavior
;
1906 if (enc_utf8
) /* produce UTF-8 */
1908 dest
-= utf_char2len(u8c
);
1909 (void)utf_char2bytes(u8c
, dest
);
1911 else /* produce Latin1 */
1916 /* character doesn't fit in latin1, retry with
1917 * another fenc when possible, otherwise just
1918 * report the error. */
1921 if (conv_error
== 0)
1922 conv_error
= readfile_linenr(linecnt
, ptr
, p
);
1923 if (bad_char_behavior
== BAD_DROP
)
1925 else if (bad_char_behavior
== BAD_KEEP
)
1927 else if (eap
!= NULL
&& eap
->bad_char
!= 0)
1928 *dest
= bad_char_behavior
;
1937 /* move the linerest to before the converted characters */
1938 line_start
= dest
- linerest
;
1939 mch_memmove(line_start
, buffer
, (size_t)linerest
);
1940 size
= (long)((ptr
+ real_size
) - dest
);
1943 else if (enc_utf8
&& !curbuf
->b_p_bin
)
1945 int incomplete_tail
= FALSE
;
1947 /* Reading UTF-8: Check if the bytes are valid UTF-8. */
1948 for (p
= ptr
; ; ++p
)
1950 int todo
= (int)((ptr
+ size
) - p
);
1957 /* A length of 1 means it's an illegal byte. Accept
1958 * an incomplete character at the end though, the next
1959 * read() will get the next bytes, we'll check it
1961 l
= utf_ptr2len_len(p
, todo
);
1962 if (l
> todo
&& !incomplete_tail
)
1964 /* Avoid retrying with a different encoding when
1965 * a truncated file is more likely, or attempting
1966 * to read the rest of an incomplete sequence when
1967 * we have already done so. */
1968 if (p
> ptr
|| filesize
> 0)
1969 incomplete_tail
= TRUE
;
1970 /* Incomplete byte sequence, move it to conv_rest[]
1971 * and try to read the rest of it, unless we've
1972 * already done so. */
1975 conv_restlen
= todo
;
1976 mch_memmove(conv_rest
, p
, conv_restlen
);
1977 size
-= conv_restlen
;
1981 if (l
== 1 || l
> todo
)
1983 /* Illegal byte. If we can try another encoding
1984 * do that, unless at EOF where a truncated
1985 * file is more likely than a conversion error. */
1986 if (can_retry
&& !incomplete_tail
)
1989 /* When we did a conversion report an error. */
1990 if (iconv_fd
!= (iconv_t
)-1 && conv_error
== 0)
1991 conv_error
= readfile_linenr(linecnt
, ptr
, p
);
1993 /* Remember the first linenr with an illegal byte */
1994 if (conv_error
== 0 && illegal_byte
== 0)
1995 illegal_byte
= readfile_linenr(linecnt
, ptr
, p
);
1997 /* Drop, keep or replace the bad byte. */
1998 if (bad_char_behavior
== BAD_DROP
)
2000 mch_memmove(p
, p
+ 1, todo
- 1);
2004 else if (bad_char_behavior
!= BAD_KEEP
)
2005 *p
= bad_char_behavior
;
2011 if (p
< ptr
+ size
&& !incomplete_tail
)
2013 /* Detected a UTF-8 error. */
2015 /* Retry reading with another conversion. */
2016 # if defined(FEAT_EVAL) && defined(USE_ICONV)
2017 if (*p_ccv
!= NUL
&& iconv_fd
!= (iconv_t
)-1)
2018 /* iconv() failed, try 'charconvert' */
2022 /* use next item from 'fileencodings' */
2023 advance_fenc
= TRUE
;
2030 /* count the number of characters (after conversion!) */
2034 * when reading the first part of a file: guess EOL type
2036 if (fileformat
== EOL_UNKNOWN
)
2038 /* First try finding a NL, for Dos and Unix */
2039 if (try_dos
|| try_unix
)
2041 for (p
= ptr
; p
< ptr
+ size
; ++p
)
2046 || (try_dos
&& p
> ptr
&& p
[-1] == CAR
))
2047 fileformat
= EOL_DOS
;
2049 fileformat
= EOL_UNIX
;
2054 /* Don't give in to EOL_UNIX if EOL_MAC is more likely */
2055 if (fileformat
== EOL_UNIX
&& try_mac
)
2057 /* Need to reset the counters when retrying fenc. */
2060 for (; p
>= ptr
&& *p
!= CAR
; p
--)
2064 for (p
= ptr
; p
< ptr
+ size
; ++p
)
2071 if (try_mac
> try_unix
)
2072 fileformat
= EOL_MAC
;
2077 /* No NL found: may use Mac format */
2078 if (fileformat
== EOL_UNKNOWN
&& try_mac
)
2079 fileformat
= EOL_MAC
;
2081 /* Still nothing found? Use first format in 'ffs' */
2082 if (fileformat
== EOL_UNKNOWN
)
2083 fileformat
= default_fileformat();
2085 /* if editing a new file: may set p_tx and p_ff */
2087 set_fileformat(fileformat
, OPT_LOCAL
);
2092 * This loop is executed once for every character read.
2095 if (fileformat
== EOL_MAC
)
2098 while (++ptr
, --size
>= 0)
2100 /* catch most common case first */
2101 if ((c
= *ptr
) != NUL
&& c
!= CAR
&& c
!= NL
)
2104 *ptr
= NL
; /* NULs are replaced by newlines! */
2106 *ptr
= CAR
; /* NLs are replaced by CRs! */
2109 if (skip_count
== 0)
2111 *ptr
= NUL
; /* end of line */
2112 len
= (colnr_T
) (ptr
- line_start
+ 1);
2113 if (ml_append(lnum
, line_start
, len
, newfile
) == FAIL
)
2119 if (--read_count
== 0)
2121 error
= TRUE
; /* break loop */
2122 line_start
= ptr
; /* nothing left to write */
2128 line_start
= ptr
+ 1;
2135 while (++ptr
, --size
>= 0)
2137 if ((c
= *ptr
) != NUL
&& c
!= NL
) /* catch most common case */
2140 *ptr
= NL
; /* NULs are replaced by newlines! */
2143 if (skip_count
== 0)
2145 *ptr
= NUL
; /* end of line */
2146 len
= (colnr_T
)(ptr
- line_start
+ 1);
2147 if (fileformat
== EOL_DOS
)
2149 if (ptr
[-1] == CAR
) /* remove CR */
2155 * Reading in Dos format, but no CR-LF found!
2156 * When 'fileformats' includes "unix", delete all
2157 * the lines read so far and start all over again.
2158 * Otherwise give an error message later.
2160 else if (ff_error
!= EOL_DOS
)
2165 || lseek(fd
, (off_t
)0L, SEEK_SET
) == 0))
2167 fileformat
= EOL_UNIX
;
2169 set_fileformat(EOL_UNIX
, OPT_LOCAL
);
2171 keep_fileformat
= TRUE
;
2177 if (ml_append(lnum
, line_start
, len
, newfile
) == FAIL
)
2183 if (--read_count
== 0)
2185 error
= TRUE
; /* break loop */
2186 line_start
= ptr
; /* nothing left to write */
2192 line_start
= ptr
+ 1;
2196 linerest
= (long)(ptr
- line_start
);
2201 /* not an error, max. number of lines reached */
2202 if (error
&& read_count
== 0)
2206 * If we get EOF in the middle of a line, note the fact and
2207 * complete the line ourselves.
2208 * In Dos format ignore a trailing CTRL-Z, unless 'binary' set.
2213 && !(!curbuf
->b_p_bin
2214 && fileformat
== EOL_DOS
2215 && *line_start
== Ctrl_Z
2216 && ptr
== line_start
+ 1))
2218 /* remember for when writing */
2220 curbuf
->b_p_eol
= FALSE
;
2222 if (ml_append(lnum
, line_start
,
2223 (colnr_T
)(ptr
- line_start
+ 1), newfile
) == FAIL
)
2226 read_no_eol_lnum
= ++lnum
;
2230 save_file_ff(curbuf
); /* remember the current file format */
2233 if (cryptkey
!= curbuf
->b_p_key
)
2238 /* If editing a new file: set 'fenc' for the current buffer.
2239 * Also for ":read ++edit file". */
2241 set_string_option_direct((char_u
*)"fenc", -1, fenc
,
2242 OPT_FREE
|OPT_LOCAL
, 0);
2246 if (iconv_fd
!= (iconv_t
)-1)
2248 iconv_close(iconv_fd
);
2249 iconv_fd
= (iconv_t
)-1;
2254 if (!read_buffer
&& !read_stdin
)
2255 close(fd
); /* errors are ignored */
2261 /* Use stderr for stdin, makes shell commands work. */
2268 if (tmpname
!= NULL
)
2270 mch_remove(tmpname
); /* delete converted file */
2274 --no_wait_return
; /* may wait for return now */
2277 * In recovery mode everything but autocommands is skipped.
2281 /* need to delete the last line, which comes from the empty buffer */
2282 if (newfile
&& wasempty
&& !(curbuf
->b_ml
.ml_flags
& ML_EMPTY
))
2284 #ifdef FEAT_NETBEANS_INTG
2285 netbeansFireChanges
= 0;
2287 ml_delete(curbuf
->b_ml
.ml_line_count
, FALSE
);
2288 #ifdef FEAT_NETBEANS_INTG
2289 netbeansFireChanges
= 1;
2293 linecnt
= curbuf
->b_ml
.ml_line_count
- linecnt
;
2296 if (newfile
|| read_buffer
)
2298 redraw_curbuf_later(NOT_VALID
);
2300 /* After reading the text into the buffer the diff info needs to
2302 diff_invalidate(curbuf
);
2305 /* All folds in the window are invalid now. Mark them for update
2306 * before triggering autocommands. */
2307 foldUpdateAll(curwin
);
2310 else if (linecnt
) /* appended at least one line */
2311 appended_lines_mark(from
, linecnt
);
2313 #ifndef ALWAYS_USE_GUI
2315 * If we were reading from the same terminal as where messages go,
2316 * the screen will have been messed up.
2317 * Switch on raw mode now and clear the screen.
2321 settmode(TMODE_RAW
); /* set to raw mode */
2329 if (!(flags
& READ_DUMMY
))
2331 filemess(curbuf
, sfname
, (char_u
*)_(e_interr
), 0);
2333 curbuf
->b_p_ro
= TRUE
; /* must use "w!" now */
2335 msg_scroll
= msg_save
;
2339 return OK
; /* an interrupt isn't really an error */
2342 if (!filtering
&& !(flags
& READ_DUMMY
))
2344 msg_add_fname(curbuf
, sfname
); /* fname in IObuff with quotes */
2349 if (S_ISFIFO(perm
)) /* fifo or socket */
2351 STRCAT(IObuff
, _("[fifo/socket]"));
2356 if ((perm
& S_IFMT
) == S_IFIFO
) /* fifo */
2358 STRCAT(IObuff
, _("[fifo]"));
2363 if ((perm
& S_IFMT
) == S_IFSOCK
) /* or socket */
2365 STRCAT(IObuff
, _("[socket]"));
2370 # ifdef OPEN_CHR_FILES
2371 if (S_ISCHR(perm
)) /* or character special */
2373 STRCAT(IObuff
, _("[character special]"));
2380 STRCAT(IObuff
, shortmess(SHM_RO
) ? _("[RO]") : _("[readonly]"));
2383 if (read_no_eol_lnum
)
2388 if (ff_error
== EOL_DOS
)
2390 STRCAT(IObuff
, _("[CR missing]"));
2395 STRCAT(IObuff
, _("[long lines split]"));
2401 STRCAT(IObuff
, _("[NOT converted]"));
2406 STRCAT(IObuff
, _("[converted]"));
2411 if (cryptkey
!= NULL
)
2413 STRCAT(IObuff
, _("[crypted]"));
2418 if (conv_error
!= 0)
2420 sprintf((char *)IObuff
+ STRLEN(IObuff
),
2421 _("[CONVERSION ERROR in line %ld]"), (long)conv_error
);
2424 else if (illegal_byte
> 0)
2426 sprintf((char *)IObuff
+ STRLEN(IObuff
),
2427 _("[ILLEGAL BYTE in line %ld]"), (long)illegal_byte
);
2434 STRCAT(IObuff
, _("[READ ERRORS]"));
2437 if (msg_add_fileformat(fileformat
))
2440 if (cryptkey
!= NULL
)
2441 msg_add_lines(c
, (long)linecnt
, filesize
- CRYPT_MAGIC_LEN
);
2444 msg_add_lines(c
, (long)linecnt
, filesize
);
2448 msg_scrolled_ign
= TRUE
;
2449 #ifdef ALWAYS_USE_GUI
2450 /* Don't show the message when reading stdin, it would end up in a
2451 * message box (which might be shown when exiting!) */
2452 if (read_stdin
|| read_buffer
)
2453 p
= msg_may_trunc(FALSE
, IObuff
);
2456 p
= msg_trunc_attr(IObuff
, FALSE
, 0);
2457 if (read_stdin
|| read_buffer
|| restart_edit
!= 0
2458 || (msg_scrolled
!= 0 && !need_wait_return
))
2459 /* Need to repeat the message after redrawing when:
2460 * - When reading from stdin (the screen will be cleared next).
2461 * - When restart_edit is set (otherwise there will be a delay
2462 * before redrawing).
2463 * - When the screen was scrolled but there is no wait-return
2466 msg_scrolled_ign
= FALSE
;
2469 /* with errors writing the file requires ":w!" */
2470 if (newfile
&& (error
2473 || (illegal_byte
> 0 && bad_char_behavior
!= BAD_KEEP
)
2476 curbuf
->b_p_ro
= TRUE
;
2478 u_clearline(); /* cannot use "U" command after adding lines */
2481 * In Ex mode: cursor at last new line.
2482 * Otherwise: cursor at first new line.
2485 curwin
->w_cursor
.lnum
= from
+ linecnt
;
2487 curwin
->w_cursor
.lnum
= from
+ 1;
2488 check_cursor_lnum();
2489 beginline(BL_WHITE
| BL_FIX
); /* on first non-blank */
2492 * Set '[ and '] marks to the newly read lines.
2494 curbuf
->b_op_start
.lnum
= from
+ 1;
2495 curbuf
->b_op_start
.col
= 0;
2496 curbuf
->b_op_end
.lnum
= from
+ linecnt
;
2497 curbuf
->b_op_end
.col
= 0;
2501 * Work around a weird problem: When a file has two links (only
2502 * possible on NTFS) and we write through one link, then stat() it
2503 * through the other link, the timestamp information may be wrong.
2504 * It's correct again after reading the file, thus reset the timestamp
2507 if (newfile
&& !read_stdin
&& !read_buffer
2508 && mch_stat((char *)fname
, &st
) >= 0)
2510 buf_store_time(curbuf
, &st
, fname
);
2511 curbuf
->b_mtime_read
= curbuf
->b_mtime
;
2515 msg_scroll
= msg_save
;
2519 * Get the marks before executing autocommands, so they can be used there.
2525 * Trick: We remember if the last line of the read didn't have
2526 * an eol for when writing it again. This is required for
2527 * ":autocmd FileReadPost *.gz set bin|'[,']!gunzip" to work.
2529 write_no_eol_lnum
= read_no_eol_lnum
;
2532 if (!read_stdin
&& !read_buffer
)
2535 int n
= msg_scrolled
;
2537 /* Save the fileformat now, otherwise the buffer will be considered
2538 * modified if the format/encoding was automatically detected. */
2540 save_file_ff(curbuf
);
2543 * The output from the autocommands should not overwrite anything and
2544 * should not be overwritten: Set msg_scroll, restore its value if no
2549 apply_autocmds_exarg(EVENT_FILTERREADPOST
, NULL
, sfname
,
2550 FALSE
, curbuf
, eap
);
2552 apply_autocmds_exarg(EVENT_BUFREADPOST
, NULL
, sfname
,
2553 FALSE
, curbuf
, eap
);
2555 apply_autocmds_exarg(EVENT_FILEREADPOST
, sfname
, sfname
,
2557 if (msg_scrolled
== n
)
2560 if (aborting()) /* autocmds may abort script processing */
2566 if (recoverymode
&& error
)
2571 #ifdef OPEN_CHR_FILES
2573 * Returns TRUE if the file name argument is of the form "/dev/fd/\d\+",
2574 * which is the name of files used for process substitution output by
2575 * some shells on some operating systems, e.g., bash on SunOS.
2576 * Do not accept "/dev/fd/[012]", opening these may hang Vim.
2579 is_dev_fd_file(fname
)
2582 return (STRNCMP(fname
, "/dev/fd/", 8) == 0
2583 && VIM_ISDIGIT(fname
[8])
2584 && *skipdigits(fname
+ 9) == NUL
2586 || (fname
[8] != '0' && fname
[8] != '1' && fname
[8] != '2')));
2593 * From the current line count and characters read after that, estimate the
2594 * line number where we are now.
2595 * Used for error messages that include a line number.
2598 readfile_linenr(linecnt
, p
, endp
)
2599 linenr_T linecnt
; /* line count before reading more bytes */
2600 char_u
*p
; /* start of more bytes read */
2601 char_u
*endp
; /* end of more bytes read */
2606 lnum
= curbuf
->b_ml
.ml_line_count
- linecnt
+ 1;
2607 for (s
= p
; s
< endp
; ++s
)
2615 * Fill "*eap" to force the 'fileencoding', 'fileformat' and 'binary to be
2616 * equal to the buffer "buf". Used for calling readfile().
2617 * Returns OK or FAIL.
2620 prep_exarg(eap
, buf
)
2624 eap
->cmd
= alloc((unsigned)(STRLEN(buf
->b_p_ff
)
2626 + STRLEN(buf
->b_p_fenc
)
2629 if (eap
->cmd
== NULL
)
2633 sprintf((char *)eap
->cmd
, "e ++ff=%s ++enc=%s", buf
->b_p_ff
, buf
->b_p_fenc
);
2634 eap
->force_enc
= 14 + (int)STRLEN(buf
->b_p_ff
);
2635 eap
->bad_char
= buf
->b_bad_char
;
2637 sprintf((char *)eap
->cmd
, "e ++ff=%s", buf
->b_p_ff
);
2641 eap
->force_bin
= buf
->b_p_bin
? FORCE_BIN
: FORCE_NOBIN
;
2642 eap
->read_edit
= FALSE
;
2643 eap
->forceit
= FALSE
;
2649 * Find next fileencoding to use from 'fileencodings'.
2650 * "pp" points to fenc_next. It's advanced to the next item.
2651 * When there are no more items, an empty string is returned and *pp is set to
2653 * When *pp is not set to NULL, the result is in allocated memory.
2665 return (char_u
*)"";
2667 p
= vim_strchr(*pp
, ',');
2670 r
= enc_canonize(*pp
);
2675 r
= vim_strnsave(*pp
, (int)(p
- *pp
));
2679 p
= enc_canonize(r
);
2684 if (r
== NULL
) /* out of memory */
2694 * Convert a file with the 'charconvert' expression.
2695 * This closes the file which is to be read, converts it and opens the
2696 * resulting file for reading.
2697 * Returns name of the resulting converted file (the caller should delete it
2698 * after reading it).
2699 * Returns NULL if the conversion failed ("*fdp" is not set) .
2702 readfile_charconvert(fname
, fenc
, fdp
)
2703 char_u
*fname
; /* name of input file */
2704 char_u
*fenc
; /* converted from */
2705 int *fdp
; /* in/out: file descriptor of file */
2708 char_u
*errmsg
= NULL
;
2710 tmpname
= vim_tempname('r');
2711 if (tmpname
== NULL
)
2712 errmsg
= (char_u
*)_("Can't find temp file for conversion");
2715 close(*fdp
); /* close the input file, ignore errors */
2717 if (eval_charconvert(fenc
, enc_utf8
? (char_u
*)"utf-8" : p_enc
,
2718 fname
, tmpname
) == FAIL
)
2719 errmsg
= (char_u
*)_("Conversion with 'charconvert' failed");
2720 if (errmsg
== NULL
&& (*fdp
= mch_open((char *)tmpname
,
2721 O_RDONLY
| O_EXTRA
, 0)) < 0)
2722 errmsg
= (char_u
*)_("can't read output of 'charconvert'");
2727 /* Don't use emsg(), it breaks mappings, the retry with
2728 * another type of conversion might still work. */
2730 if (tmpname
!= NULL
)
2732 mch_remove(tmpname
); /* delete converted file */
2738 /* If the input file is closed, open it (caller should check for error). */
2740 *fdp
= mch_open((char *)fname
, O_RDONLY
| O_EXTRA
, 0);
2750 * Read marks for the current buffer from the viminfo file, when we support
2751 * buffer marks and the buffer has a name.
2756 if (!curbuf
->b_marks_read
&& get_viminfo_parameter('\'') > 0
2757 && curbuf
->b_ffname
!= NULL
)
2758 read_viminfo(NULL
, VIF_WANT_MARKS
);
2760 /* Always set b_marks_read; needed when 'viminfo' is changed to include
2761 * the ' parameter after opening a buffer. */
2762 curbuf
->b_marks_read
= TRUE
;
2768 * Check for magic number used for encryption.
2769 * If found, the magic number is removed from ptr[*sizep] and *sizep and
2770 * *filesizep are updated.
2771 * Return the (new) encryption key, NULL for no encryption.
2774 check_for_cryptkey(cryptkey
, ptr
, sizep
, filesizep
, newfile
)
2775 char_u
*cryptkey
; /* previous encryption key or NULL */
2776 char_u
*ptr
; /* pointer to read bytes */
2777 long *sizep
; /* length of read bytes */
2778 long *filesizep
; /* nr of bytes used from file */
2779 int newfile
; /* editing a new buffer */
2781 if (*sizep
>= CRYPT_MAGIC_LEN
2782 && STRNCMP(ptr
, CRYPT_MAGIC
, CRYPT_MAGIC_LEN
) == 0)
2784 if (cryptkey
== NULL
)
2786 if (*curbuf
->b_p_key
)
2787 cryptkey
= curbuf
->b_p_key
;
2790 /* When newfile is TRUE, store the typed key
2791 * in the 'key' option and don't free it. */
2792 cryptkey
= get_crypt_key(newfile
, FALSE
);
2793 /* check if empty key entered */
2794 if (cryptkey
!= NULL
&& *cryptkey
== NUL
)
2796 if (cryptkey
!= curbuf
->b_p_key
)
2803 if (cryptkey
!= NULL
)
2805 crypt_init_keys(cryptkey
);
2807 /* Remove magic number from the text */
2808 *filesizep
+= CRYPT_MAGIC_LEN
;
2809 *sizep
-= CRYPT_MAGIC_LEN
;
2810 mch_memmove(ptr
, ptr
+ CRYPT_MAGIC_LEN
, (size_t)*sizep
);
2813 /* When starting to edit a new file which does not have
2814 * encryption, clear the 'key' option, except when
2815 * starting up (called with -x argument) */
2816 else if (newfile
&& *curbuf
->b_p_key
&& !starting
)
2817 set_option_value((char_u
*)"key", 0L, (char_u
*)"", OPT_LOCAL
);
2825 set_file_time(fname
, atime
, mtime
)
2827 time_t atime
; /* access time */
2828 time_t mtime
; /* modification time */
2830 # if defined(HAVE_UTIME) && defined(HAVE_UTIME_H)
2834 buf
.modtime
= mtime
;
2835 (void)utime((char *)fname
, &buf
);
2837 # if defined(HAVE_UTIMES)
2838 struct timeval tvp
[2];
2840 tvp
[0].tv_sec
= atime
;
2842 tvp
[1].tv_sec
= mtime
;
2845 (void)utimes((char *)fname
, tvp
);
2847 (void)utimes((char *)fname
, (const struct timeval
*)&tvp
);
2854 #if defined(VMS) && !defined(MIN)
2855 /* Older DECC compiler for VAX doesn't define MIN() */
2856 # define MIN(a, b) ((a) < (b) ? (a) : (b))
2860 * Return TRUE if a file appears to be read-only from the file permissions.
2863 check_file_readonly(fname
, perm
)
2864 char_u
*fname
; /* full path to file */
2865 int perm
; /* known permissions on file */
2867 #ifndef USE_MCH_ACCESS
2872 #ifdef USE_MCH_ACCESS
2874 (perm
& 0222) == 0 ||
2876 mch_access((char *)fname
, W_OK
)
2878 (fd
= mch_open((char *)fname
, O_RDWR
| O_EXTRA
, 0)) < 0
2879 ? TRUE
: (close(fd
), FALSE
)
2886 * buf_write() - write to file "fname" lines "start" through "end"
2888 * We do our own buffering here because fwrite() is so slow.
2890 * If "forceit" is true, we don't care for errors when attempting backups.
2891 * In case of an error everything possible is done to restore the original
2892 * file. But when "forceit" is TRUE, we risk losing it.
2894 * When "reset_changed" is TRUE and "append" == FALSE and "start" == 1 and
2895 * "end" == curbuf->b_ml.ml_line_count, reset curbuf->b_changed.
2897 * This function must NOT use NameBuff (because it's called by autowrite()).
2899 * return FAIL for failure, OK otherwise
2902 buf_write(buf
, fname
, sfname
, start
, end
, eap
, append
, forceit
,
2903 reset_changed
, filtering
)
2907 linenr_T start
, end
;
2908 exarg_T
*eap
; /* for forced 'ff' and 'fenc', can be
2910 int append
; /* append to the file */
2916 char_u
*backup
= NULL
;
2917 int backup_copy
= FALSE
; /* copy the original file? */
2920 char_u
*wfname
= NULL
; /* name of file to write to */
2927 char_u
*errmsg
= NULL
;
2928 int errmsg_allocated
= FALSE
;
2929 char_u
*errnum
= NULL
;
2931 char_u smallbuf
[SMBUFSIZE
];
2934 long perm
; /* file permissions */
2936 int newfile
= FALSE
; /* TRUE if file doesn't exist yet */
2937 int msg_save
= msg_scroll
;
2938 int overwriting
; /* TRUE if writing over original */
2939 int no_eol
= FALSE
; /* no end-of-line written */
2940 int device
= FALSE
; /* writing to a device */
2942 int prev_got_int
= got_int
;
2943 int file_readonly
= FALSE
; /* overwritten file is read-only */
2944 static char *err_readonly
= "is read-only (cannot override: \"W\" in 'cpoptions')";
2945 #if defined(UNIX) || defined(__EMX__XX) /*XXX fix me sometime? */
2946 int made_writable
= FALSE
; /* 'w' bit has been set */
2948 /* writing everything */
2949 int whole
= (start
== 1 && end
== buf
->b_ml
.ml_line_count
);
2951 linenr_T old_line_count
= buf
->b_ml
.ml_line_count
;
2956 struct bw_info write_info
; /* info for buf_write_bytes() */
2958 int converted
= FALSE
;
2959 int notconverted
= FALSE
;
2960 char_u
*fenc
; /* effective 'fileencoding' */
2961 char_u
*fenc_tofree
= NULL
; /* allocated "fenc" */
2967 vim_acl_T acl
= NULL
; /* ACL copied from original file to
2968 backup or new file */
2971 if (fname
== NULL
|| *fname
== NUL
) /* safety check */
2975 * Disallow writing from .exrc and .vimrc in current directory for
2981 /* Avoid a crash for a long name. */
2982 if (STRLEN(fname
) >= MAXPATHL
)
2984 EMSG(_(e_longname
));
2989 /* must init bw_conv_buf and bw_iconv_fd before jumping to "fail" */
2990 write_info
.bw_conv_buf
= NULL
;
2991 write_info
.bw_conv_error
= FALSE
;
2992 write_info
.bw_conv_error_lnum
= 0;
2993 write_info
.bw_restlen
= 0;
2995 write_info
.bw_iconv_fd
= (iconv_t
)-1;
2999 /* After writing a file changedtick changes but we don't want to display
3001 ex_no_reprint
= TRUE
;
3004 * If there is no file name yet, use the one for the written file.
3005 * BF_NOTEDITED is set to reflect this (in case the write fails).
3006 * Don't do this when the write is for a filter command.
3007 * Don't do this when appending.
3008 * Only do this when 'cpoptions' contains the 'F' flag.
3010 if (buf
->b_ffname
== NULL
3014 #ifdef FEAT_QUICKFIX
3018 && (!append
|| vim_strchr(p_cpo
, CPO_FNAMEAPP
) != NULL
)
3019 && vim_strchr(p_cpo
, CPO_FNAMEW
) != NULL
)
3021 if (set_rw_fname(fname
, sfname
) == FAIL
)
3023 buf
= curbuf
; /* just in case autocmds made "buf" invalid */
3029 * For Unix: Use the short file name whenever possible.
3030 * Avoids problems with networks and when directory names are changed.
3031 * Don't do this for MS-DOS, a "cd" in a sub-shell may have moved us to
3032 * another directory, which we don't detect
3034 ffname
= fname
; /* remember full fname */
3039 if (buf
->b_ffname
!= NULL
&& fnamecmp(ffname
, buf
->b_ffname
) == 0)
3042 overwriting
= FALSE
;
3045 settmode(TMODE_COOK
); /* when exiting allow typahead now */
3047 ++no_wait_return
; /* don't wait for return yet */
3050 * Set '[ and '] marks to the lines to be written.
3052 buf
->b_op_start
.lnum
= start
;
3053 buf
->b_op_start
.col
= 0;
3054 buf
->b_op_end
.lnum
= end
;
3055 buf
->b_op_end
.col
= 0;
3060 int buf_ffname
= FALSE
;
3061 int buf_sfname
= FALSE
;
3062 int buf_fname_f
= FALSE
;
3063 int buf_fname_s
= FALSE
;
3064 int did_cmd
= FALSE
;
3065 int nofile_err
= FALSE
;
3066 int empty_memline
= (buf
->b_ml
.ml_mfp
== NULL
);
3069 * Apply PRE aucocommands.
3070 * Set curbuf to the buffer to be written.
3071 * Careful: The autocommands may call buf_write() recursively!
3073 if (ffname
== buf
->b_ffname
)
3075 if (sfname
== buf
->b_sfname
)
3077 if (fname
== buf
->b_ffname
)
3079 if (fname
== buf
->b_sfname
)
3082 /* set curwin/curbuf to buf and save a few things */
3083 aucmd_prepbuf(&aco
, buf
);
3087 if (!(did_cmd
= apply_autocmds_exarg(EVENT_FILEAPPENDCMD
,
3088 sfname
, sfname
, FALSE
, curbuf
, eap
)))
3090 #ifdef FEAT_QUICKFIX
3091 if (overwriting
&& bt_nofile(curbuf
))
3095 apply_autocmds_exarg(EVENT_FILEAPPENDPRE
,
3096 sfname
, sfname
, FALSE
, curbuf
, eap
);
3101 apply_autocmds_exarg(EVENT_FILTERWRITEPRE
,
3102 NULL
, sfname
, FALSE
, curbuf
, eap
);
3104 else if (reset_changed
&& whole
)
3106 if (!(did_cmd
= apply_autocmds_exarg(EVENT_BUFWRITECMD
,
3107 sfname
, sfname
, FALSE
, curbuf
, eap
)))
3109 #ifdef FEAT_QUICKFIX
3110 if (overwriting
&& bt_nofile(curbuf
))
3114 apply_autocmds_exarg(EVENT_BUFWRITEPRE
,
3115 sfname
, sfname
, FALSE
, curbuf
, eap
);
3120 if (!(did_cmd
= apply_autocmds_exarg(EVENT_FILEWRITECMD
,
3121 sfname
, sfname
, FALSE
, curbuf
, eap
)))
3123 #ifdef FEAT_QUICKFIX
3124 if (overwriting
&& bt_nofile(curbuf
))
3128 apply_autocmds_exarg(EVENT_FILEWRITEPRE
,
3129 sfname
, sfname
, FALSE
, curbuf
, eap
);
3133 /* restore curwin/curbuf and a few other things */
3134 aucmd_restbuf(&aco
);
3137 * In three situations we return here and don't write the file:
3138 * 1. the autocommands deleted or unloaded the buffer.
3139 * 2. The autocommands abort script processing.
3140 * 3. If one of the "Cmd" autocommands was executed.
3142 if (!buf_valid(buf
))
3144 if (buf
== NULL
|| (buf
->b_ml
.ml_mfp
== NULL
&& !empty_memline
)
3145 || did_cmd
|| nofile_err
3152 msg_scroll
= msg_save
;
3154 EMSG(_("E676: No matching autocommands for acwrite buffer"));
3161 /* An aborting error, interrupt or exception in the
3167 /* The buffer was deleted. We assume it was written
3168 * (can't retry anyway). */
3172 /* Assume the buffer was written, update the timestamp. */
3175 buf
->b_flags
&= ~BF_NEW
;
3177 buf
->b_flags
&= ~BF_WRITE_MASK
;
3179 if (reset_changed
&& buf
->b_changed
&& !append
3180 && (overwriting
|| vim_strchr(p_cpo
, CPO_PLUS
) != NULL
))
3181 /* Buffer still changed, the autocommands didn't work
3189 EMSG(_("E203: Autocommands deleted or unloaded buffer to be written"));
3194 * The autocommands may have changed the number of lines in the file.
3195 * When writing the whole file, adjust the end.
3196 * When writing part of the file, assume that the autocommands only
3197 * changed the number of lines that are to be written (tricky!).
3199 if (buf
->b_ml
.ml_line_count
!= old_line_count
)
3201 if (whole
) /* write all */
3202 end
= buf
->b_ml
.ml_line_count
;
3203 else if (buf
->b_ml
.ml_line_count
> old_line_count
) /* more lines */
3204 end
+= buf
->b_ml
.ml_line_count
- old_line_count
;
3205 else /* less lines */
3207 end
-= old_line_count
- buf
->b_ml
.ml_line_count
;
3211 msg_scroll
= msg_save
;
3212 EMSG(_("E204: Autocommand changed number of lines in unexpected way"));
3219 * The autocommands may have changed the name of the buffer, which may
3220 * be kept in fname, ffname and sfname.
3223 ffname
= buf
->b_ffname
;
3225 sfname
= buf
->b_sfname
;
3227 fname
= buf
->b_ffname
;
3229 fname
= buf
->b_sfname
;
3233 #ifdef FEAT_NETBEANS_INTG
3234 if (usingNetbeans
&& isNetbeansBuffer(buf
))
3239 * b_changed can be 0 after an undo, but we still need to write
3240 * the buffer to NetBeans.
3242 if (buf
->b_changed
|| isNetbeansModified(buf
))
3244 --no_wait_return
; /* may wait for return now */
3245 msg_scroll
= msg_save
;
3246 netbeans_save_buffer(buf
); /* no error checking... */
3251 errnum
= (char_u
*)"E656: ";
3252 errmsg
= (char_u
*)_("NetBeans disallows writes of unmodified buffers");
3259 errnum
= (char_u
*)"E657: ";
3260 errmsg
= (char_u
*)_("Partial writes disallowed for NetBeans buffers");
3267 if (shortmess(SHM_OVER
) && !exiting
)
3268 msg_scroll
= FALSE
; /* overwrite previous file message */
3270 msg_scroll
= TRUE
; /* don't overwrite previous file message */
3278 (char_u
*)"", 0); /* show that we are busy */
3279 msg_scroll
= FALSE
; /* always overwrite the file message now */
3281 buffer
= alloc(BUFSIZE
);
3282 if (buffer
== NULL
) /* can't allocate big buffer, use small
3283 * one (to be able to write when out of
3287 bufsize
= SMBUFSIZE
;
3293 * Get information about original file (if there is one).
3295 #if defined(UNIX) && !defined(ARCHIE)
3299 if (mch_stat((char *)fname
, &st_old
) < 0)
3303 perm
= st_old
.st_mode
;
3304 if (!S_ISREG(st_old
.st_mode
)) /* not a file */
3306 if (S_ISDIR(st_old
.st_mode
))
3308 errnum
= (char_u
*)"E502: ";
3309 errmsg
= (char_u
*)_("is a directory");
3312 if (mch_nodetype(fname
) != NODE_WRITABLE
)
3314 errnum
= (char_u
*)"E503: ";
3315 errmsg
= (char_u
*)_("is not a file or writable device");
3318 /* It's a device of some kind (or a fifo) which we can write to
3319 * but for which we can't make a backup. */
3327 * Check for a writable device name.
3329 c
= mch_nodetype(fname
);
3330 if (c
== NODE_OTHER
)
3332 errnum
= (char_u
*)"E503: ";
3333 errmsg
= (char_u
*)_("is not a file or writable device");
3336 if (c
== NODE_WRITABLE
)
3338 # if defined(MSDOS) || defined(MSWIN) || defined(OS2)
3339 /* MS-Windows allows opening a device, but we will probably get stuck
3340 * trying to write to it. */
3343 errnum
= (char_u
*)"E796: ";
3344 errmsg
= (char_u
*)_("writing to device disabled with 'opendevice' option");
3354 perm
= mch_getperm(fname
);
3357 else if (mch_isdir(fname
))
3359 errnum
= (char_u
*)"E502: ";
3360 errmsg
= (char_u
*)_("is a directory");
3364 (void)mch_stat((char *)fname
, &st_old
);
3368 if (!device
&& !newfile
)
3371 * Check if the file is really writable (when renaming the file to
3372 * make a backup we won't discover it later).
3374 file_readonly
= check_file_readonly(fname
, (int)perm
);
3376 if (!forceit
&& file_readonly
)
3378 if (vim_strchr(p_cpo
, CPO_FWRITE
) != NULL
)
3380 errnum
= (char_u
*)"E504: ";
3381 errmsg
= (char_u
*)_(err_readonly
);
3385 errnum
= (char_u
*)"E505: ";
3386 errmsg
= (char_u
*)_("is read-only (add ! to override)");
3392 * Check if the timestamp hasn't changed since reading the file.
3396 retval
= check_mtime(buf
, &st_old
);
3404 * For systems that support ACL: get the ACL from the original file.
3407 acl
= mch_get_acl(fname
);
3411 * If 'backupskip' is not empty, don't make a backup for some files.
3413 dobackup
= (p_wb
|| p_bk
|| *p_pm
!= NUL
);
3415 if (dobackup
&& *p_bsk
!= NUL
&& match_file_list(p_bsk
, sfname
, ffname
))
3420 * Save the value of got_int and reset it. We don't want a previous
3421 * interruption cancel writing, only hitting CTRL-C while writing should
3424 prev_got_int
= got_int
;
3427 /* Mark the buffer as 'being saved' to prevent changed buffer warnings */
3428 buf
->b_saving
= TRUE
;
3431 * If we are not appending or filtering, the file exists, and the
3432 * 'writebackup', 'backup' or 'patchmode' option is set, need a backup.
3433 * When 'patchmode' is set also make a backup when appending.
3435 * Do not make any backup, if 'writebackup' and 'backup' are both switched
3436 * off. This helps when editing large files on almost-full disks.
3438 if (!(append
&& *p_pm
== NUL
) && !filtering
&& perm
>= 0 && dobackup
)
3440 #if defined(UNIX) || defined(WIN32)
3444 if ((bkc_flags
& BKC_YES
) || append
) /* "yes" */
3446 #if defined(UNIX) || defined(WIN32)
3447 else if ((bkc_flags
& BKC_AUTO
)) /* "auto" */
3453 * Don't rename the file when:
3454 * - it's a hard link
3455 * - it's a symbolic link
3456 * - we don't have write permission in the directory
3457 * - we can't set the owner/group of the new file
3459 if (st_old
.st_nlink
> 1
3460 || mch_lstat((char *)fname
, &st
) < 0
3461 || st
.st_dev
!= st_old
.st_dev
3462 || st
.st_ino
!= st_old
.st_ino
3463 # ifndef HAVE_FCHOWN
3464 || st
.st_uid
!= st_old
.st_uid
3465 || st
.st_gid
!= st_old
.st_gid
3472 /* On NTFS file systems hard links are possible. */
3473 if (mch_is_linked(fname
))
3480 * Check if we can create a file and set the owner/group to
3481 * the ones from the original file.
3482 * First find a file name that doesn't exist yet (use some
3483 * arbitrary numbers).
3485 STRCPY(IObuff
, fname
);
3486 for (i
= 4913; ; i
+= 123)
3488 sprintf((char *)gettail(IObuff
), "%d", i
);
3489 if (mch_lstat((char *)IObuff
, &st
) < 0)
3492 fd
= mch_open((char *)IObuff
,
3493 O_CREAT
|O_WRONLY
|O_EXCL
|O_NOFOLLOW
, perm
);
3494 if (fd
< 0) /* can't write in directory */
3500 ignored
= fchown(fd
, st_old
.st_uid
, st_old
.st_gid
);
3502 if (mch_stat((char *)IObuff
, &st
) < 0
3503 || st
.st_uid
!= st_old
.st_uid
3504 || st
.st_gid
!= st_old
.st_gid
3505 || (long)st
.st_mode
!= perm
)
3508 /* Close the file before removing it, on MS-Windows we
3509 * can't delete an open file. */
3518 * Break symlinks and/or hardlinks if we've been asked to.
3520 if ((bkc_flags
& BKC_BREAKSYMLINK
) || (bkc_flags
& BKC_BREAKHARDLINK
))
3524 lstat_res
= mch_lstat((char *)fname
, &st
);
3527 if ((bkc_flags
& BKC_BREAKSYMLINK
)
3529 && st
.st_ino
!= st_old
.st_ino
)
3530 backup_copy
= FALSE
;
3533 if ((bkc_flags
& BKC_BREAKHARDLINK
)
3534 && st_old
.st_nlink
> 1
3535 && (lstat_res
!= 0 || st
.st_ino
== st_old
.st_ino
))
3536 backup_copy
= FALSE
;
3542 /* make sure we have a valid backup extension to use */
3546 backup_ext
= (char_u
*)"/bak";
3548 backup_ext
= (char_u
*)".bak";
3555 && (fd
= mch_open((char *)fname
, O_RDONLY
| O_EXTRA
, 0)) >= 0)
3558 char_u
*copybuf
, *wp
;
3559 int some_error
= FALSE
;
3563 #if defined(UNIX) && !defined(SHORT_FNAME)
3564 int did_set_shortname
;
3567 copybuf
= alloc(BUFSIZE
+ 1);
3568 if (copybuf
== NULL
)
3570 some_error
= TRUE
; /* out of memory */
3575 * Try to make the backup in each directory in the 'bdir' option.
3577 * Unix semantics has it, that we may have a writable file,
3578 * that cannot be recreated with a simple open(..., O_CREAT, ) e.g:
3579 * - the directory is not writable,
3580 * - the file may be a symbolic link,
3581 * - the file may belong to another user/group, etc.
3583 * For these reasons, the existing writable file must be truncated
3584 * and reused. Creation of a backup COPY will be attempted.
3596 * Isolate one directory name, using an entry in 'bdir'.
3598 (void)copy_option_part(&dirp
, copybuf
, BUFSIZE
, ",");
3599 rootname
= get_file_in_dir(fname
, copybuf
);
3600 if (rootname
== NULL
)
3602 some_error
= TRUE
; /* out of memory */
3606 #if defined(UNIX) && !defined(SHORT_FNAME)
3607 did_set_shortname
= FALSE
;
3611 * May try twice if 'shortname' not set.
3616 * Make backup file name.
3618 backup
= buf_modname(
3622 (buf
->b_p_sn
|| buf
->b_shortname
),
3624 rootname
, backup_ext
, FALSE
);
3628 some_error
= TRUE
; /* out of memory */
3633 * Check if backup file already exists.
3635 if (mch_stat((char *)backup
, &st_new
) >= 0)
3639 * Check if backup file is same as original file.
3640 * May happen when modname() gave the same file back.
3641 * E.g. silly link, or file name-length reached.
3642 * If we don't check here, we either ruin the file
3643 * when copying or erase it after writing. jw.
3645 if (st_new
.st_dev
== st_old
.st_dev
3646 && st_new
.st_ino
== st_old
.st_ino
)
3649 backup
= NULL
; /* no backup file to delete */
3650 # ifndef SHORT_FNAME
3652 * may try again with 'shortname' set
3654 if (!(buf
->b_shortname
|| buf
->b_p_sn
))
3656 buf
->b_shortname
= TRUE
;
3657 did_set_shortname
= TRUE
;
3660 /* setting shortname didn't help */
3661 if (did_set_shortname
)
3662 buf
->b_shortname
= FALSE
;
3669 * If we are not going to keep the backup file, don't
3670 * delete an existing one, try to use another name.
3671 * Change one character, just before the extension.
3675 wp
= backup
+ STRLEN(backup
) - 1
3676 - STRLEN(backup_ext
);
3677 if (wp
< backup
) /* empty file name ??? */
3681 && mch_stat((char *)backup
, &st_new
) >= 0)
3683 /* They all exist??? Must be something wrong. */
3696 * Try to create the backup file
3700 /* remove old backup, if present */
3702 /* Open with O_EXCL to avoid the file being created while
3703 * we were sleeping (symlink hacker attack?) */
3704 bfd
= mch_open((char *)backup
,
3705 O_WRONLY
|O_CREAT
|O_EXTRA
|O_EXCL
|O_NOFOLLOW
,
3714 /* set file protection same as original file, but
3716 (void)mch_setperm(backup
, perm
& 0777);
3720 * Try to set the group of the backup same as the
3721 * original file. If this fails, set the protection
3722 * bits for the group same as the protection bits for
3725 if (st_new
.st_gid
!= st_old
.st_gid
3726 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */
3727 && fchown(bfd
, (uid_t
)-1, st_old
.st_gid
) != 0
3731 (perm
& 0707) | ((perm
& 07) << 3));
3732 # ifdef HAVE_SELINUX
3733 mch_copy_sec(fname
, backup
);
3740 write_info
.bw_fd
= bfd
;
3741 write_info
.bw_buf
= copybuf
;
3743 write_info
.bw_flags
= FIO_NOCONVERT
;
3745 while ((write_info
.bw_len
= vim_read(fd
, copybuf
,
3748 if (buf_write_bytes(&write_info
) == FAIL
)
3750 errmsg
= (char_u
*)_("E506: Can't write to backup file (add ! to override)");
3756 errmsg
= (char_u
*)_(e_interr
);
3761 if (close(bfd
) < 0 && errmsg
== NULL
)
3762 errmsg
= (char_u
*)_("E507: Close error for backup file (add ! to override)");
3763 if (write_info
.bw_len
< 0)
3764 errmsg
= (char_u
*)_("E508: Can't read file for backup (add ! to override)");
3766 set_file_time(backup
, st_old
.st_atime
, st_old
.st_mtime
);
3769 mch_set_acl(backup
, acl
);
3772 mch_copy_sec(fname
, backup
);
3779 close(fd
); /* ignore errors for closing read file */
3782 if (backup
== NULL
&& errmsg
== NULL
)
3783 errmsg
= (char_u
*)_("E509: Cannot create backup file (add ! to override)");
3784 /* ignore errors when forceit is TRUE */
3785 if ((some_error
|| errmsg
!= NULL
) && !forceit
)
3799 * Make a backup by renaming the original file.
3802 * If 'cpoptions' includes the "W" flag, we don't want to
3803 * overwrite a read-only file. But rename may be possible
3804 * anyway, thus we need an extra check here.
3806 if (file_readonly
&& vim_strchr(p_cpo
, CPO_FWRITE
) != NULL
)
3808 errnum
= (char_u
*)"E504: ";
3809 errmsg
= (char_u
*)_(err_readonly
);
3815 * Form the backup file name - change path/fo.o.h to
3816 * path/fo.o.h.bak Try all directories in 'backupdir', first one
3817 * that works is used.
3823 * Isolate one directory name and make the backup file name.
3825 (void)copy_option_part(&dirp
, IObuff
, IOSIZE
, ",");
3826 rootname
= get_file_in_dir(fname
, IObuff
);
3827 if (rootname
== NULL
)
3831 backup
= buf_modname(
3835 (buf
->b_p_sn
|| buf
->b_shortname
),
3837 rootname
, backup_ext
, FALSE
);
3844 * If we are not going to keep the backup file, don't
3845 * delete an existing one, try to use another name.
3846 * Change one character, just before the extension.
3848 if (!p_bk
&& mch_getperm(backup
) >= 0)
3850 p
= backup
+ STRLEN(backup
) - 1 - STRLEN(backup_ext
);
3851 if (p
< backup
) /* empty file name ??? */
3854 while (*p
> 'a' && mch_getperm(backup
) >= 0)
3856 /* They all exist??? Must be something wrong! */
3867 * Delete any existing backup and move the current version
3868 * to the backup. For safety, we don't remove the backup
3869 * until the write has finished successfully. And if the
3870 * 'backup' option is set, leave it around.
3873 * If the renaming of the original file to the backup file
3876 if (vim_rename(fname
, backup
) == 0)
3879 vim_free(backup
); /* don't do the rename below */
3883 if (backup
== NULL
&& !forceit
)
3885 errmsg
= (char_u
*)_("E510: Can't make backup file (add ! to override)");
3891 #if defined(UNIX) && !defined(ARCHIE)
3892 /* When using ":w!" and the file was read-only: make it writable */
3893 if (forceit
&& perm
>= 0 && !(perm
& 0200) && st_old
.st_uid
== getuid()
3894 && vim_strchr(p_cpo
, CPO_FWRITE
) == NULL
)
3897 (void)mch_setperm(fname
, perm
);
3898 made_writable
= TRUE
;
3902 /* When using ":w!" and writing to the current file, 'readonly' makes no
3903 * sense, reset it, unless 'Z' appears in 'cpoptions'. */
3904 if (forceit
&& overwriting
&& vim_strchr(p_cpo
, CPO_KEEPRO
) == NULL
)
3906 buf
->b_p_ro
= FALSE
;
3908 need_maketitle
= TRUE
; /* set window title later */
3911 status_redraw_all(); /* redraw status lines later */
3915 if (end
> buf
->b_ml
.ml_line_count
)
3916 end
= buf
->b_ml
.ml_line_count
;
3917 if (buf
->b_ml
.ml_flags
& ML_EMPTY
)
3921 * If the original file is being overwritten, there is a small chance that
3922 * we crash in the middle of writing. Therefore the file is preserved now.
3923 * This makes all block numbers positive so that recovery does not need
3924 * the original file.
3925 * Don't do this if there is a backup file and we are exiting.
3927 if (reset_changed
&& !newfile
&& overwriting
3928 && !(exiting
&& backup
!= NULL
))
3930 ml_preserve(buf
, FALSE
);
3933 errmsg
= (char_u
*)_(e_interr
);
3934 goto restore_backup
;
3938 #ifdef MACOS_CLASSIC /* TODO: Is it need for MACOS_X? (Dany) */
3940 * Before risking to lose the original file verify if there's
3941 * a resource fork to preserve, and if cannot be done warn
3942 * the users. This happens when overwriting without backups.
3944 if (backup
== NULL
&& overwriting
&& !append
)
3945 if (mch_has_resource_fork(fname
))
3947 errmsg
= (char_u
*)_("E460: The resource fork would be lost (add ! to override)");
3948 goto restore_backup
;
3953 vms_remove_version(fname
); /* remove version */
3955 /* Default: write the file directly. May write to a temp file for
3956 * multi-byte conversion. */
3960 /* Check for forced 'fileencoding' from "++opt=val" argument. */
3961 if (eap
!= NULL
&& eap
->force_enc
!= 0)
3963 fenc
= eap
->cmd
+ eap
->force_enc
;
3964 fenc
= enc_canonize(fenc
);
3968 fenc
= buf
->b_p_fenc
;
3971 * Check if the file needs to be converted.
3973 converted
= need_conversion(fenc
);
3976 * Check if UTF-8 to UCS-2/4 or Latin1 conversion needs to be done. Or
3977 * Latin1 to Unicode conversion. This is handled in buf_write_bytes().
3978 * Prepare the flags for it and allocate bw_conv_buf when needed.
3980 if (converted
&& (enc_utf8
|| STRCMP(p_enc
, "latin1") == 0))
3982 wb_flags
= get_fio_flags(fenc
);
3983 if (wb_flags
& (FIO_UCS2
| FIO_UCS4
| FIO_UTF16
| FIO_UTF8
))
3985 /* Need to allocate a buffer to translate into. */
3986 if (wb_flags
& (FIO_UCS2
| FIO_UTF16
| FIO_UTF8
))
3987 write_info
.bw_conv_buflen
= bufsize
* 2;
3989 write_info
.bw_conv_buflen
= bufsize
* 4;
3990 write_info
.bw_conv_buf
3991 = lalloc((long_u
)write_info
.bw_conv_buflen
, TRUE
);
3992 if (write_info
.bw_conv_buf
== NULL
)
3998 if (converted
&& wb_flags
== 0 && (wb_flags
= get_win_fio_flags(fenc
)) != 0)
4000 /* Convert UTF-8 -> UCS-2 and UCS-2 -> DBCS. Worst-case * 4: */
4001 write_info
.bw_conv_buflen
= bufsize
* 4;
4002 write_info
.bw_conv_buf
4003 = lalloc((long_u
)write_info
.bw_conv_buflen
, TRUE
);
4004 if (write_info
.bw_conv_buf
== NULL
)
4010 if (converted
&& wb_flags
== 0 && (wb_flags
= get_mac_fio_flags(fenc
)) != 0)
4012 write_info
.bw_conv_buflen
= bufsize
* 3;
4013 write_info
.bw_conv_buf
4014 = lalloc((long_u
)write_info
.bw_conv_buflen
, TRUE
);
4015 if (write_info
.bw_conv_buf
== NULL
)
4020 # if defined(FEAT_EVAL) || defined(USE_ICONV)
4021 if (converted
&& wb_flags
== 0)
4025 * Use iconv() conversion when conversion is needed and it's not done
4028 write_info
.bw_iconv_fd
= (iconv_t
)my_iconv_open(fenc
,
4029 enc_utf8
? (char_u
*)"utf-8" : p_enc
);
4030 if (write_info
.bw_iconv_fd
!= (iconv_t
)-1)
4032 /* We're going to use iconv(), allocate a buffer to convert in. */
4033 write_info
.bw_conv_buflen
= bufsize
* ICONV_MULT
;
4034 write_info
.bw_conv_buf
4035 = lalloc((long_u
)write_info
.bw_conv_buflen
, TRUE
);
4036 if (write_info
.bw_conv_buf
== NULL
)
4038 write_info
.bw_first
= TRUE
;
4047 * When the file needs to be converted with 'charconvert' after
4048 * writing, write to a temp file instead and let the conversion
4049 * overwrite the original file.
4053 wfname
= vim_tempname('w');
4054 if (wfname
== NULL
) /* Can't write without a tempfile! */
4056 errmsg
= (char_u
*)_("E214: Can't find temp file for writing");
4057 goto restore_backup
;
4063 if (converted
&& wb_flags
== 0
4065 && write_info
.bw_iconv_fd
== (iconv_t
)-1
4074 errmsg
= (char_u
*)_("E213: Cannot convert (add ! to write without conversion)");
4075 goto restore_backup
;
4077 notconverted
= TRUE
;
4082 * Open the file "wfname" for writing.
4083 * We may try to open the file twice: If we can't write to the
4084 * file and forceit is TRUE we delete the existing file and try to create
4085 * a new one. If this still fails we may have lost the original file!
4086 * (this may happen when the user reached his quotum for number of files).
4087 * Appending will fail if the file does not exist and forceit is FALSE.
4089 while ((fd
= mch_open((char *)wfname
, O_WRONLY
| O_EXTRA
| (append
4090 ? (forceit
? (O_APPEND
| O_CREAT
) : O_APPEND
)
4091 : (O_CREAT
| O_TRUNC
))
4092 , perm
< 0 ? 0666 : (perm
& 0777))) < 0)
4095 * A forced write will try to create a new file if the old one is
4096 * still readonly. This may also happen when the directory is
4097 * read-only. In that case the mch_remove() will fail.
4104 /* Don't delete the file when it's a hard or symbolic link. */
4105 if ((!newfile
&& st_old
.st_nlink
> 1)
4106 || (mch_lstat((char *)fname
, &st
) == 0
4107 && (st
.st_dev
!= st_old
.st_dev
4108 || st
.st_ino
!= st_old
.st_ino
)))
4109 errmsg
= (char_u
*)_("E166: Can't open linked file for writing");
4113 errmsg
= (char_u
*)_("E212: Can't open file for writing");
4114 if (forceit
&& vim_strchr(p_cpo
, CPO_FWRITE
) == NULL
4118 /* we write to the file, thus it should be marked
4119 writable after all */
4121 made_writable
= TRUE
;
4123 if (st_old
.st_uid
!= getuid() || st_old
.st_gid
!= getgid())
4126 if (!append
) /* don't remove when appending */
4138 * If we failed to open the file, we don't need a backup. Throw it
4139 * away. If we moved or removed the original file try to put the
4140 * backup in its place.
4142 if (backup
!= NULL
&& wfname
== fname
)
4147 * There is a small chance that we removed the original,
4148 * try to move the copy in its place.
4149 * This may not work if the vim_rename() fails.
4150 * In that case we leave the copy around.
4152 /* If file does not exist, put the copy in its place */
4153 if (mch_stat((char *)fname
, &st
) < 0)
4154 vim_rename(backup
, fname
);
4155 /* if original file does exist throw away the copy */
4156 if (mch_stat((char *)fname
, &st
) >= 0)
4161 /* try to put the original file back */
4162 vim_rename(backup
, fname
);
4166 /* if original file no longer exists give an extra warning */
4167 if (!newfile
&& mch_stat((char *)fname
, &st
) < 0)
4172 if (wfname
!= fname
)
4179 #if defined(MACOS_CLASSIC) || defined(WIN3264)
4180 /* TODO: Is it need for MACOS_X? (Dany) */
4182 * On macintosh copy the original files attributes (i.e. the backup)
4183 * This is done in order to preserve the resource fork and the
4184 * Finder attribute (label, comments, custom icons, file creator)
4186 if (backup
!= NULL
&& overwriting
&& !append
)
4189 (void)mch_copy_file_attribute(wfname
, backup
);
4191 (void)mch_copy_file_attribute(backup
, wfname
);
4194 if (!overwriting
&& !append
)
4196 if (buf
->b_ffname
!= NULL
)
4197 (void)mch_copy_file_attribute(buf
->b_ffname
, wfname
);
4198 /* Should copy resource fork */
4202 write_info
.bw_fd
= fd
;
4205 if (*buf
->b_p_key
&& !filtering
)
4207 crypt_init_keys(buf
->b_p_key
);
4208 /* Write magic number, so that Vim knows that this file is encrypted
4209 * when reading it again. This also undergoes utf-8 to ucs-2/4
4210 * conversion when needed. */
4211 write_info
.bw_buf
= (char_u
*)CRYPT_MAGIC
;
4212 write_info
.bw_len
= CRYPT_MAGIC_LEN
;
4213 write_info
.bw_flags
= FIO_NOCONVERT
;
4214 if (buf_write_bytes(&write_info
) == FAIL
)
4216 wb_flags
|= FIO_ENCRYPTED
;
4220 write_info
.bw_buf
= buffer
;
4223 /* use "++bin", "++nobin" or 'binary' */
4224 if (eap
!= NULL
&& eap
->force_bin
!= 0)
4225 write_bin
= (eap
->force_bin
== FORCE_BIN
);
4227 write_bin
= buf
->b_p_bin
;
4231 * The BOM is written just after the encryption magic number.
4232 * Skip it when appending and the file already existed, the BOM only makes
4233 * sense at the start of the file.
4235 if (buf
->b_p_bomb
&& !write_bin
&& (!append
|| perm
< 0))
4237 write_info
.bw_len
= make_bom(buffer
, fenc
);
4238 if (write_info
.bw_len
> 0)
4240 /* don't convert, do encryption */
4241 write_info
.bw_flags
= FIO_NOCONVERT
| wb_flags
;
4242 if (buf_write_bytes(&write_info
) == FAIL
)
4245 nchars
+= write_info
.bw_len
;
4248 write_info
.bw_start_lnum
= start
;
4251 write_info
.bw_len
= bufsize
;
4253 write_info
.bw_flags
= wb_flags
;
4255 fileformat
= get_fileformat_force(buf
, eap
);
4258 for (lnum
= start
; lnum
<= end
; ++lnum
)
4261 * The next while loop is done once for each character written.
4264 ptr
= ml_get_buf(buf
, lnum
, FALSE
) - 1;
4265 while ((c
= *++ptr
) != NUL
)
4268 *s
= NUL
; /* replace newlines with NULs */
4269 else if (c
== CAR
&& fileformat
== EOL_MAC
)
4270 *s
= NL
; /* Mac: replace CRs with NLs */
4274 if (++len
!= bufsize
)
4276 if (buf_write_bytes(&write_info
) == FAIL
)
4278 end
= 0; /* write error: break loop */
4285 write_info
.bw_start_lnum
= lnum
;
4288 /* write failed or last line has no EOL: stop here */
4292 && (lnum
== write_no_eol_lnum
4293 || (lnum
== buf
->b_ml
.ml_line_count
&& !buf
->b_p_eol
))))
4295 ++lnum
; /* written the line, count it */
4299 if (fileformat
== EOL_UNIX
)
4303 *s
++ = CAR
; /* EOL_MAC or EOL_DOS: write CR */
4304 if (fileformat
== EOL_DOS
) /* write CR-NL */
4306 if (++len
== bufsize
)
4308 if (buf_write_bytes(&write_info
) == FAIL
)
4310 end
= 0; /* write error: break loop */
4320 if (++len
== bufsize
&& end
)
4322 if (buf_write_bytes(&write_info
) == FAIL
)
4324 end
= 0; /* write error: break loop */
4334 end
= 0; /* Interrupted, break loop */
4340 * On VMS there is a problem: newlines get added when writing blocks
4341 * at a time. Fix it by writing a line at a time.
4342 * This is much slower!
4343 * Explanation: VAX/DECC RTL insists that records in some RMS
4344 * structures end with a newline (carriage return) character, and if
4345 * they don't it adds one.
4346 * With other RMS structures it works perfect without this fix.
4348 if (buf
->b_fab_rfm
== FAB$C_VFC
4349 || ((buf
->b_fab_rat
& (FAB$M_FTN
| FAB$M_CR
)) != 0))
4353 buf
->b_fab_mrs
= (buf
->b_fab_mrs
== 0
4354 ? MIN(4096, bufsize
)
4355 : MIN(buf
->b_fab_mrs
, bufsize
));
4360 write_info
.bw_len
= MIN(b2write
, buf
->b_fab_mrs
);
4361 if (buf_write_bytes(&write_info
) == FAIL
)
4366 b2write
-= MIN(b2write
, buf
->b_fab_mrs
);
4368 write_info
.bw_len
= bufsize
;
4375 if (len
> 0 && end
> 0)
4377 write_info
.bw_len
= len
;
4378 if (buf_write_bytes(&write_info
) == FAIL
)
4379 end
= 0; /* write error */
4383 #if defined(UNIX) && defined(HAVE_FSYNC)
4384 /* On many journalling file systems there is a bug that causes both the
4385 * original and the backup file to be lost when halting the system right
4386 * after writing the file. That's because only the meta-data is
4387 * journalled. Syncing the file slows down the system, but assures it has
4388 * been written to disk and we don't lose it.
4389 * For a device do try the fsync() but don't complain if it does not work
4390 * (could be a pipe).
4391 * If the 'fsync' option is FALSE, don't fsync(). Useful for laptops. */
4392 if (p_fs
&& fsync(fd
) != 0 && !device
)
4394 errmsg
= (char_u
*)_("E667: Fsync failed");
4400 /* Probably need to set the security context. */
4402 mch_copy_sec(backup
, wfname
);
4406 /* When creating a new file, set its owner/group to that of the original
4407 * file. Get the new device and inode number. */
4408 if (backup
!= NULL
&& !backup_copy
)
4413 /* don't change the owner when it's already OK, some systems remove
4414 * permission or ACL stuff */
4415 if (mch_stat((char *)wfname
, &st
) < 0
4416 || st
.st_uid
!= st_old
.st_uid
4417 || st
.st_gid
!= st_old
.st_gid
)
4419 ignored
= fchown(fd
, st_old
.st_uid
, st_old
.st_gid
);
4420 if (perm
>= 0) /* set permission again, may have changed */
4421 (void)mch_setperm(wfname
, perm
);
4426 else if (!buf
->b_dev_valid
)
4427 /* Set the inode when creating a new file. */
4433 errmsg
= (char_u
*)_("E512: Close failed");
4439 perm
&= ~0200; /* reset 'w' bit for security reasons */
4441 if (perm
>= 0) /* set perm. of new file same as old file */
4442 (void)mch_setperm(wfname
, perm
);
4444 if (!append
&& !filtering
)
4445 /* Set the filetype after writing the file. */
4446 mch_set_filetype(wfname
, buf
->b_p_oft
);
4449 /* Probably need to set the ACL before changing the user (can't set the
4450 * ACL on a file the user doesn't own). */
4452 mch_set_acl(wfname
, acl
);
4456 #if defined(FEAT_MBYTE) && defined(FEAT_EVAL)
4457 if (wfname
!= fname
)
4460 * The file was written to a temp file, now it needs to be converted
4461 * with 'charconvert' to (overwrite) the output file.
4465 if (eval_charconvert(enc_utf8
? (char_u
*)"utf-8" : p_enc
, fenc
,
4466 wfname
, fname
) == FAIL
)
4468 write_info
.bw_conv_error
= TRUE
;
4482 if (write_info
.bw_conv_error
)
4484 if (write_info
.bw_conv_error_lnum
== 0)
4485 errmsg
= (char_u
*)_("E513: write error, conversion failed (make 'fenc' empty to override)");
4488 errmsg_allocated
= TRUE
;
4489 errmsg
= alloc(300);
4490 vim_snprintf((char *)errmsg
, 300, _("E513: write error, conversion failed in line %ld (make 'fenc' empty to override)"),
4491 (long)write_info
.bw_conv_error_lnum
);
4497 errmsg
= (char_u
*)_(e_interr
);
4499 errmsg
= (char_u
*)_("E514: write error (file system full?)");
4503 * If we have a backup file, try to put it in place of the new file,
4504 * because the new file is probably corrupt. This avoids losing the
4505 * original file when trying to make a backup when writing the file a
4507 * When "backup_copy" is set we need to copy the backup over the new
4508 * file. Otherwise rename the backup file.
4509 * If this is OK, don't give the extra warning message.
4515 /* This may take a while, if we were interrupted let the user
4516 * know we got the message. */
4522 if ((fd
= mch_open((char *)backup
, O_RDONLY
| O_EXTRA
, 0)) >= 0)
4524 if ((write_info
.bw_fd
= mch_open((char *)fname
,
4525 O_WRONLY
| O_CREAT
| O_TRUNC
| O_EXTRA
,
4528 /* copy the file. */
4529 write_info
.bw_buf
= smallbuf
;
4531 write_info
.bw_flags
= FIO_NOCONVERT
;
4533 while ((write_info
.bw_len
= vim_read(fd
, smallbuf
,
4535 if (buf_write_bytes(&write_info
) == FAIL
)
4538 if (close(write_info
.bw_fd
) >= 0
4539 && write_info
.bw_len
== 0)
4540 end
= 1; /* success */
4542 close(fd
); /* ignore errors for closing read file */
4547 if (vim_rename(backup
, fname
) == 0)
4554 lnum
-= start
; /* compute number of written lines */
4555 --no_wait_return
; /* may wait for return now */
4557 #if !(defined(UNIX) || defined(VMS))
4558 fname
= sfname
; /* use shortname now, for the messages */
4562 msg_add_fname(buf
, fname
); /* put fname in IObuff with quotes */
4565 if (write_info
.bw_conv_error
)
4567 STRCAT(IObuff
, _(" CONVERSION ERROR"));
4569 if (write_info
.bw_conv_error_lnum
!= 0)
4571 size_t l
= STRLEN(IObuff
);
4572 vim_snprintf((char *)IObuff
+ l
, IOSIZE
- l
, _(" in line %ld;"),
4573 (long)write_info
.bw_conv_error_lnum
);
4576 else if (notconverted
)
4578 STRCAT(IObuff
, _("[NOT converted]"));
4583 STRCAT(IObuff
, _("[converted]"));
4589 STRCAT(IObuff
, _("[Device]"));
4594 STRCAT(IObuff
, shortmess(SHM_NEW
) ? _("[New]") : _("[New File]"));
4602 /* may add [unix/dos/mac] */
4603 if (msg_add_fileformat(fileformat
))
4606 if (wb_flags
& FIO_ENCRYPTED
)
4608 STRCAT(IObuff
, _("[crypted]"));
4612 msg_add_lines(c
, (long)lnum
, nchars
); /* add line/char count */
4613 if (!shortmess(SHM_WRITE
))
4616 STRCAT(IObuff
, shortmess(SHM_WRI
) ? _(" [a]") : _(" appended"));
4618 STRCAT(IObuff
, shortmess(SHM_WRI
) ? _(" [w]") : _(" written"));
4621 set_keep_msg(msg_trunc_attr(IObuff
, FALSE
, 0), 0);
4624 /* When written everything correctly: reset 'modified'. Unless not
4625 * writing to the original file and '+' is not in 'cpoptions'. */
4626 if (reset_changed
&& whole
&& !append
4628 && !write_info
.bw_conv_error
4630 && (overwriting
|| vim_strchr(p_cpo
, CPO_PLUS
) != NULL
)
4633 unchanged(buf
, TRUE
);
4638 * If written to the current file, update the timestamp of the swap file
4639 * and reset the BF_WRITE_MASK flags. Also sets buf->b_mtime.
4645 buf
->b_flags
&= ~BF_NEW
;
4647 buf
->b_flags
&= ~BF_WRITE_MASK
;
4651 * If we kept a backup until now, and we are in patch mode, then we make
4652 * the backup file our 'original' file.
4654 if (*p_pm
&& dobackup
)
4656 char *org
= (char *)buf_modname(
4660 (buf
->b_p_sn
|| buf
->b_shortname
),
4662 fname
, p_pm
, FALSE
);
4669 * If the original file does not exist yet
4670 * the current backup file becomes the original file
4673 EMSG(_("E205: Patchmode: can't save original file"));
4674 else if (mch_stat(org
, &st
) < 0)
4676 vim_rename(backup
, (char_u
*)org
);
4677 vim_free(backup
); /* don't delete the file */
4680 set_file_time((char_u
*)org
, st_old
.st_atime
, st_old
.st_mtime
);
4685 * If there is no backup file, remember that a (new) file was
4693 || (empty_fd
= mch_open(org
,
4694 O_CREAT
| O_EXTRA
| O_EXCL
| O_NOFOLLOW
,
4695 perm
< 0 ? 0666 : (perm
& 0777))) < 0)
4696 EMSG(_("E206: patchmode: can't touch empty original file"));
4702 mch_setperm((char_u
*)org
, mch_getperm(fname
) & 0777);
4708 * Remove the backup unless 'backup' option is set
4710 if (!p_bk
&& backup
!= NULL
&& mch_remove(backup
) != 0)
4711 EMSG(_("E207: Can't delete backup file"));
4713 #ifdef FEAT_SUN_WORKSHOP
4714 if (usingSunWorkShop
)
4715 workshop_file_saved((char *) ffname
);
4721 * Finish up. We get here either after failure or success.
4724 --no_wait_return
; /* may wait for return now */
4727 /* Done saving, we accept changed buffer warnings again */
4728 buf
->b_saving
= FALSE
;
4731 if (buffer
!= smallbuf
)
4734 vim_free(fenc_tofree
);
4735 vim_free(write_info
.bw_conv_buf
);
4737 if (write_info
.bw_iconv_fd
!= (iconv_t
)-1)
4739 iconv_close(write_info
.bw_iconv_fd
);
4740 write_info
.bw_iconv_fd
= (iconv_t
)-1;
4750 int numlen
= errnum
!= NULL
? (int)STRLEN(errnum
) : 0;
4752 attr
= hl_attr(HLF_E
); /* set highlight for error messages */
4759 ); /* put file name in IObuff with quotes */
4760 if (STRLEN(IObuff
) + STRLEN(errmsg
) + numlen
>= IOSIZE
)
4761 IObuff
[IOSIZE
- STRLEN(errmsg
) - numlen
- 1] = NUL
;
4762 /* If the error message has the form "is ...", put the error number in
4763 * front of the file name. */
4766 STRMOVE(IObuff
+ numlen
, IObuff
);
4767 mch_memmove(IObuff
, errnum
, (size_t)numlen
);
4769 STRCAT(IObuff
, errmsg
);
4771 if (errmsg_allocated
)
4777 MSG_PUTS_ATTR(_("\nWARNING: Original file may be lost or damaged\n"),
4779 MSG_PUTS_ATTR(_("don't quit the editor until the file is successfully written!"),
4782 /* Update the timestamp to avoid an "overwrite changed file"
4783 * prompt when writing again. */
4784 if (mch_stat((char *)fname
, &st_old
) >= 0)
4786 buf_store_time(buf
, &st_old
, fname
);
4787 buf
->b_mtime_read
= buf
->b_mtime
;
4791 msg_scroll
= msg_save
;
4795 if (!should_abort(retval
))
4802 write_no_eol_lnum
= 0; /* in case it was set by the previous read */
4805 * Apply POST autocommands.
4806 * Careful: The autocommands may call buf_write() recursively!
4808 aucmd_prepbuf(&aco
, buf
);
4811 apply_autocmds_exarg(EVENT_FILEAPPENDPOST
, fname
, fname
,
4812 FALSE
, curbuf
, eap
);
4814 apply_autocmds_exarg(EVENT_FILTERWRITEPOST
, NULL
, fname
,
4815 FALSE
, curbuf
, eap
);
4816 else if (reset_changed
&& whole
)
4817 apply_autocmds_exarg(EVENT_BUFWRITEPOST
, fname
, fname
,
4818 FALSE
, curbuf
, eap
);
4820 apply_autocmds_exarg(EVENT_FILEWRITEPOST
, fname
, fname
,
4821 FALSE
, curbuf
, eap
);
4823 /* restore curwin/curbuf and a few other things */
4824 aucmd_restbuf(&aco
);
4827 if (aborting()) /* autocmds may abort script processing */
4833 got_int
|= prev_got_int
;
4835 #ifdef MACOS_CLASSIC /* TODO: Is it need for MACOS_X? (Dany) */
4836 /* Update machine specific information. */
4837 mch_post_buffer_write(buf
);
4839 #ifdef FEAT_ODB_EDITOR
4840 odb_post_buffer_write(buf
);
4847 * Set the name of the current buffer. Use when the buffer doesn't have a
4848 * name and a ":r" or ":w" command with a file name is used.
4851 set_rw_fname(fname
, sfname
)
4856 buf_T
*buf
= curbuf
;
4858 /* It's like the unnamed buffer is deleted.... */
4860 apply_autocmds(EVENT_BUFDELETE
, NULL
, NULL
, FALSE
, curbuf
);
4861 apply_autocmds(EVENT_BUFWIPEOUT
, NULL
, NULL
, FALSE
, curbuf
);
4863 if (aborting()) /* autocmds may abort script processing */
4868 /* We are in another buffer now, don't do the renaming. */
4869 EMSG(_(e_auchangedbuf
));
4874 if (setfname(curbuf
, fname
, sfname
, FALSE
) == OK
)
4875 curbuf
->b_flags
|= BF_NOTEDITED
;
4878 /* ....and a new named one is created */
4879 apply_autocmds(EVENT_BUFNEW
, NULL
, NULL
, FALSE
, curbuf
);
4881 apply_autocmds(EVENT_BUFADD
, NULL
, NULL
, FALSE
, curbuf
);
4883 if (aborting()) /* autocmds may abort script processing */
4887 /* Do filetype detection now if 'filetype' is empty. */
4888 if (*curbuf
->b_p_ft
== NUL
)
4890 if (au_has_group((char_u
*)"filetypedetect"))
4891 (void)do_doautocmd((char_u
*)"filetypedetect BufRead", FALSE
);
4900 * Put file name into IObuff with quotes.
4903 msg_add_fname(buf
, fname
)
4908 fname
= (char_u
*)"-stdin-";
4909 home_replace(buf
, fname
, IObuff
+ 1, IOSIZE
- 4, TRUE
);
4911 STRCAT(IObuff
, "\" ");
4915 * Append message for text mode to IObuff.
4916 * Return TRUE if something appended.
4919 msg_add_fileformat(eol_type
)
4923 if (eol_type
== EOL_DOS
)
4925 STRCAT(IObuff
, shortmess(SHM_TEXT
) ? _("[dos]") : _("[dos format]"));
4930 if (eol_type
== EOL_MAC
)
4932 STRCAT(IObuff
, shortmess(SHM_TEXT
) ? _("[mac]") : _("[mac format]"));
4936 #if defined(USE_CRNL) || defined(USE_CR)
4937 if (eol_type
== EOL_UNIX
)
4939 STRCAT(IObuff
, shortmess(SHM_TEXT
) ? _("[unix]") : _("[unix format]"));
4947 * Append line and character count to IObuff.
4950 msg_add_lines(insert_space
, lnum
, nchars
)
4957 p
= IObuff
+ STRLEN(IObuff
);
4961 if (shortmess(SHM_LINES
))
4962 sprintf((char *)p
, "%ldL, %ldC", lnum
, nchars
);
4966 STRCPY(p
, _("1 line, "));
4968 sprintf((char *)p
, _("%ld lines, "), lnum
);
4971 STRCPY(p
, _("1 character"));
4973 sprintf((char *)p
, _("%ld characters"), nchars
);
4978 * Append message for missing line separator to IObuff.
4983 STRCAT(IObuff
, shortmess(SHM_LAST
) ? _("[noeol]") : _("[Incomplete last line]"));
4987 * Check modification time of file, before writing to it.
4988 * The size isn't checked, because using a tool like "gzip" takes care of
4989 * using the same timestamp but can't set the size.
4992 check_mtime(buf
, st
)
4996 if (buf
->b_mtime_read
!= 0
4997 && time_differs((long)st
->st_mtime
, buf
->b_mtime_read
))
4999 msg_scroll
= TRUE
; /* don't overwrite messages here */
5000 msg_silent
= 0; /* must give this prompt */
5001 /* don't use emsg() here, don't want to flush the buffers */
5002 MSG_ATTR(_("WARNING: The file has been changed since reading it!!!"),
5004 if (ask_yesno((char_u
*)_("Do you really want to write to it"),
5007 msg_scroll
= FALSE
; /* always overwrite the file message now */
5013 time_differs(t1
, t2
)
5016 #if defined(__linux__) || defined(MSDOS) || defined(MSWIN)
5017 /* On a FAT filesystem, esp. under Linux, there are only 5 bits to store
5018 * the seconds. Since the roundoff is done when flushing the inode, the
5019 * time may change unexpectedly by one second!!! */
5020 return (t1
- t2
> 1 || t2
- t1
> 1);
5027 * Call write() to write a number of bytes to the file.
5028 * Also handles encryption and 'encoding' conversion.
5030 * Return FAIL for failure, OK otherwise.
5037 char_u
*buf
= ip
->bw_buf
; /* data to write */
5038 int len
= ip
->bw_len
; /* length of data */
5040 int flags
= ip
->bw_flags
; /* extra flags */
5045 * Skip conversion when writing the crypt magic number or the BOM.
5047 if (!(flags
& FIO_NOCONVERT
))
5053 if (flags
& FIO_UTF8
)
5056 * Convert latin1 in the buffer to UTF-8 in the file.
5058 p
= ip
->bw_conv_buf
; /* translate to buffer */
5059 for (wlen
= 0; wlen
< len
; ++wlen
)
5060 p
+= utf_char2bytes(buf
[wlen
], p
);
5061 buf
= ip
->bw_conv_buf
;
5062 len
= (int)(p
- ip
->bw_conv_buf
);
5064 else if (flags
& (FIO_UCS4
| FIO_UTF16
| FIO_UCS2
| FIO_LATIN1
))
5067 * Convert UTF-8 bytes in the buffer to UCS-2, UCS-4, UTF-16 or
5068 * Latin1 chars in the file.
5070 if (flags
& FIO_LATIN1
)
5071 p
= buf
; /* translate in-place (can only get shorter) */
5073 p
= ip
->bw_conv_buf
; /* translate to buffer */
5074 for (wlen
= 0; wlen
< len
; wlen
+= n
)
5076 if (wlen
== 0 && ip
->bw_restlen
!= 0)
5080 /* Use remainder of previous call. Append the start of
5081 * buf[] to get a full sequence. Might still be too
5083 l
= CONV_RESTLEN
- ip
->bw_restlen
;
5086 mch_memmove(ip
->bw_rest
+ ip
->bw_restlen
, buf
, (size_t)l
);
5087 n
= utf_ptr2len_len(ip
->bw_rest
, ip
->bw_restlen
+ l
);
5088 if (n
> ip
->bw_restlen
+ len
)
5090 /* We have an incomplete byte sequence at the end to
5091 * be written. We can't convert it without the
5092 * remaining bytes. Keep them for the next call. */
5093 if (ip
->bw_restlen
+ len
> CONV_RESTLEN
)
5095 ip
->bw_restlen
+= len
;
5099 c
= utf_ptr2char(ip
->bw_rest
);
5102 if (n
>= ip
->bw_restlen
)
5104 n
-= ip
->bw_restlen
;
5109 ip
->bw_restlen
-= n
;
5110 mch_memmove(ip
->bw_rest
, ip
->bw_rest
+ n
,
5111 (size_t)ip
->bw_restlen
);
5117 n
= utf_ptr2len_len(buf
+ wlen
, len
- wlen
);
5120 /* We have an incomplete byte sequence at the end to
5121 * be written. We can't convert it without the
5122 * remaining bytes. Keep them for the next call. */
5123 if (len
- wlen
> CONV_RESTLEN
)
5125 ip
->bw_restlen
= len
- wlen
;
5126 mch_memmove(ip
->bw_rest
, buf
+ wlen
,
5127 (size_t)ip
->bw_restlen
);
5131 c
= utf_ptr2char(buf
+ wlen
);
5136 if (ucs2bytes(c
, &p
, flags
) && !ip
->bw_conv_error
)
5138 ip
->bw_conv_error
= TRUE
;
5139 ip
->bw_conv_error_lnum
= ip
->bw_start_lnum
;
5142 ++ip
->bw_start_lnum
;
5144 if (flags
& FIO_LATIN1
)
5145 len
= (int)(p
- buf
);
5148 buf
= ip
->bw_conv_buf
;
5149 len
= (int)(p
- ip
->bw_conv_buf
);
5154 else if (flags
& FIO_CODEPAGE
)
5157 * Convert UTF-8 or codepage to UCS-2 and then to MS-Windows
5167 if (ip
->bw_restlen
> 0)
5169 /* Need to concatenate the remainder of the previous call and
5170 * the bytes of the current call. Use the end of the
5171 * conversion buffer for this. */
5172 fromlen
= len
+ ip
->bw_restlen
;
5173 from
= ip
->bw_conv_buf
+ ip
->bw_conv_buflen
- fromlen
;
5174 mch_memmove(from
, ip
->bw_rest
, (size_t)ip
->bw_restlen
);
5175 mch_memmove(from
+ ip
->bw_restlen
, buf
, (size_t)len
);
5183 to
= ip
->bw_conv_buf
;
5186 /* Convert from UTF-8 to UCS-2, to the start of the buffer.
5187 * The buffer has been allocated to be big enough. */
5190 n
= (int)utf_ptr2len_len(from
, (int)fromlen
);
5191 if (n
> (int)fromlen
) /* incomplete byte sequence */
5193 u8c
= utf_ptr2char(from
);
5194 *to
++ = (u8c
& 0xff);
5200 /* Copy remainder to ip->bw_rest[] to be used for the next
5202 if (fromlen
> CONV_RESTLEN
)
5204 /* weird overlong sequence */
5205 ip
->bw_conv_error
= TRUE
;
5208 mch_memmove(ip
->bw_rest
, from
, fromlen
);
5209 ip
->bw_restlen
= (int)fromlen
;
5213 /* Convert from enc_codepage to UCS-2, to the start of the
5214 * buffer. The buffer has been allocated to be big enough. */
5216 needed
= MultiByteToWideChar(enc_codepage
,
5217 MB_ERR_INVALID_CHARS
, (LPCSTR
)from
, (int)fromlen
,
5221 /* When conversion fails there may be a trailing byte. */
5222 needed
= MultiByteToWideChar(enc_codepage
,
5223 MB_ERR_INVALID_CHARS
, (LPCSTR
)from
, (int)fromlen
- 1,
5227 /* Conversion doesn't work. */
5228 ip
->bw_conv_error
= TRUE
;
5231 /* Save the trailing byte for the next call. */
5232 ip
->bw_rest
[0] = from
[fromlen
- 1];
5235 needed
= MultiByteToWideChar(enc_codepage
, MB_ERR_INVALID_CHARS
,
5236 (LPCSTR
)from
, (int)(fromlen
- ip
->bw_restlen
),
5237 (LPWSTR
)to
, needed
);
5240 /* Safety check: Conversion doesn't work. */
5241 ip
->bw_conv_error
= TRUE
;
5247 fromlen
= to
- ip
->bw_conv_buf
;
5249 # ifdef CP_UTF8 /* VC 4.1 doesn't define CP_UTF8 */
5250 if (FIO_GET_CP(flags
) == CP_UTF8
)
5252 /* Convert from UCS-2 to UTF-8, using the remainder of the
5253 * conversion buffer. Fails when out of space. */
5254 for (from
= ip
->bw_conv_buf
; fromlen
> 1; fromlen
-= 2)
5257 u8c
+= (*from
++ << 8);
5258 to
+= utf_char2bytes(u8c
, to
);
5259 if (to
+ 6 >= ip
->bw_conv_buf
+ ip
->bw_conv_buflen
)
5261 ip
->bw_conv_error
= TRUE
;
5265 len
= (int)(to
- buf
);
5270 /* Convert from UCS-2 to the codepage, using the remainder of
5271 * the conversion buffer. If the conversion uses the default
5272 * character "0", the data doesn't fit in this encoding, so
5274 len
= WideCharToMultiByte(FIO_GET_CP(flags
), 0,
5275 (LPCWSTR
)ip
->bw_conv_buf
, (int)fromlen
/ sizeof(WCHAR
),
5276 (LPSTR
)to
, (int)(ip
->bw_conv_buflen
- fromlen
), 0,
5280 ip
->bw_conv_error
= TRUE
;
5287 # ifdef MACOS_CONVERT
5288 else if (flags
& FIO_MACROMAN
)
5291 * Convert UTF-8 or latin1 to Apple MacRoman.
5296 if (ip
->bw_restlen
> 0)
5298 /* Need to concatenate the remainder of the previous call and
5299 * the bytes of the current call. Use the end of the
5300 * conversion buffer for this. */
5301 fromlen
= len
+ ip
->bw_restlen
;
5302 from
= ip
->bw_conv_buf
+ ip
->bw_conv_buflen
- fromlen
;
5303 mch_memmove(from
, ip
->bw_rest
, (size_t)ip
->bw_restlen
);
5304 mch_memmove(from
+ ip
->bw_restlen
, buf
, (size_t)len
);
5312 if (enc2macroman(from
, fromlen
,
5313 ip
->bw_conv_buf
, &len
, ip
->bw_conv_buflen
,
5314 ip
->bw_rest
, &ip
->bw_restlen
) == FAIL
)
5316 ip
->bw_conv_error
= TRUE
;
5319 buf
= ip
->bw_conv_buf
;
5324 if (ip
->bw_iconv_fd
!= (iconv_t
)-1)
5331 /* Convert with iconv(). */
5332 if (ip
->bw_restlen
> 0)
5336 /* Need to concatenate the remainder of the previous call and
5337 * the bytes of the current call. Use the end of the
5338 * conversion buffer for this. */
5339 fromlen
= len
+ ip
->bw_restlen
;
5340 fp
= (char *)ip
->bw_conv_buf
+ ip
->bw_conv_buflen
- fromlen
;
5341 mch_memmove(fp
, ip
->bw_rest
, (size_t)ip
->bw_restlen
);
5342 mch_memmove(fp
+ ip
->bw_restlen
, buf
, (size_t)len
);
5344 tolen
= ip
->bw_conv_buflen
- fromlen
;
5348 from
= (const char *)buf
;
5350 tolen
= ip
->bw_conv_buflen
;
5352 to
= (char *)ip
->bw_conv_buf
;
5356 size_t save_len
= tolen
;
5358 /* output the initial shift state sequence */
5359 (void)iconv(ip
->bw_iconv_fd
, NULL
, NULL
, &to
, &tolen
);
5361 /* There is a bug in iconv() on Linux (which appears to be
5362 * wide-spread) which sets "to" to NULL and messes up "tolen".
5366 to
= (char *)ip
->bw_conv_buf
;
5369 ip
->bw_first
= FALSE
;
5373 * If iconv() has an error or there is not enough room, fail.
5375 if ((iconv(ip
->bw_iconv_fd
, (void *)&from
, &fromlen
, &to
, &tolen
)
5376 == (size_t)-1 && ICONV_ERRNO
!= ICONV_EINVAL
)
5377 || fromlen
> CONV_RESTLEN
)
5379 ip
->bw_conv_error
= TRUE
;
5383 /* copy remainder to ip->bw_rest[] to be used for the next call. */
5385 mch_memmove(ip
->bw_rest
, (void *)from
, fromlen
);
5386 ip
->bw_restlen
= (int)fromlen
;
5388 buf
= ip
->bw_conv_buf
;
5389 len
= (int)((char_u
*)to
- ip
->bw_conv_buf
);
5393 #endif /* FEAT_MBYTE */
5396 if (flags
& FIO_ENCRYPTED
) /* encrypt the data */
5400 for (i
= 0; i
< len
; i
++)
5403 buf
[i
] = ZENCODE(ztemp
, t
);
5408 /* Repeat the write(), it may be interrupted by a signal. */
5411 wlen
= vim_write(ip
->bw_fd
, buf
, len
);
5412 if (wlen
<= 0) /* error! */
5422 * Convert a Unicode character to bytes.
5423 * Return TRUE for an error, FALSE when it's OK.
5426 ucs2bytes(c
, pp
, flags
)
5427 unsigned c
; /* in: character */
5428 char_u
**pp
; /* in/out: pointer to result */
5429 int flags
; /* FIO_ flags */
5436 if (flags
& FIO_UCS4
)
5438 if (flags
& FIO_ENDIAN_L
)
5453 else if (flags
& (FIO_UCS2
| FIO_UTF16
))
5457 if (flags
& FIO_UTF16
)
5459 /* Make two words, ten bits of the character in each. First
5460 * word is 0xd800 - 0xdbff, second one 0xdc00 - 0xdfff */
5464 cc
= ((c
>> 10) & 0x3ff) + 0xd800;
5465 if (flags
& FIO_ENDIAN_L
)
5468 *p
++ = ((unsigned)cc
>> 8);
5472 *p
++ = ((unsigned)cc
>> 8);
5475 c
= (c
& 0x3ff) + 0xdc00;
5480 if (flags
& FIO_ENDIAN_L
)
5507 * Return TRUE if file encoding "fenc" requires conversion from or to
5511 need_conversion(fenc
)
5518 if (*fenc
== NUL
|| STRCMP(p_enc
, fenc
) == 0)
5519 same_encoding
= TRUE
;
5522 /* Ignore difference between "ansi" and "latin1", "ucs-4" and
5523 * "ucs-4be", etc. */
5524 enc_flags
= get_fio_flags(p_enc
);
5525 fenc_flags
= get_fio_flags(fenc
);
5526 same_encoding
= (enc_flags
!= 0 && fenc_flags
== enc_flags
);
5530 /* Specified encoding matches with 'encoding'. This requires
5531 * conversion when 'encoding' is Unicode but not UTF-8. */
5532 return enc_unicode
!= 0;
5535 /* Encodings differ. However, conversion is not needed when 'enc' is any
5536 * Unicode encoding and the file is UTF-8. */
5537 return !(enc_utf8
&& fenc_flags
== FIO_UTF8
);
5541 * Check "ptr" for a unicode encoding and return the FIO_ flags needed for the
5542 * internal conversion.
5543 * if "ptr" is an empty string, use 'encoding'.
5554 prop
= enc_canon_props(ptr
);
5555 if (prop
& ENC_UNICODE
)
5557 if (prop
& ENC_2BYTE
)
5559 if (prop
& ENC_ENDIAN_L
)
5560 return FIO_UCS2
| FIO_ENDIAN_L
;
5563 if (prop
& ENC_4BYTE
)
5565 if (prop
& ENC_ENDIAN_L
)
5566 return FIO_UCS4
| FIO_ENDIAN_L
;
5569 if (prop
& ENC_2WORD
)
5571 if (prop
& ENC_ENDIAN_L
)
5572 return FIO_UTF16
| FIO_ENDIAN_L
;
5577 if (prop
& ENC_LATIN1
)
5579 /* must be ENC_DBCS, requires iconv() */
5585 * Check "ptr" for a MS-Windows codepage name and return the FIO_ flags needed
5586 * for the conversion MS-Windows can do for us. Also accept "utf-8".
5587 * Used for conversion between 'encoding' and 'fileencoding'.
5590 get_win_fio_flags(ptr
)
5595 /* Cannot do this when 'encoding' is not utf-8 and not a codepage. */
5596 if (!enc_utf8
&& enc_codepage
<= 0)
5599 cp
= encname2codepage(ptr
);
5602 # ifdef CP_UTF8 /* VC 4.1 doesn't define CP_UTF8 */
5603 if (STRCMP(ptr
, "utf-8") == 0)
5609 return FIO_PUT_CP(cp
) | FIO_CODEPAGE
;
5615 * Check "ptr" for a Carbon supported encoding and return the FIO_ flags
5616 * needed for the internal conversion to/from utf-8 or latin1.
5619 get_mac_fio_flags(ptr
)
5622 if ((enc_utf8
|| STRCMP(p_enc
, "latin1") == 0)
5623 && (enc_canon_props(ptr
) & ENC_MACROMAN
))
5624 return FIO_MACROMAN
;
5630 * Check for a Unicode BOM (Byte Order Mark) at the start of p[size].
5631 * "size" must be at least 2.
5632 * Return the name of the encoding and set "*lenp" to the length.
5633 * Returns NULL when no BOM found.
5636 check_for_bom(p
, size
, lenp
, flags
)
5645 if (p
[0] == 0xef && p
[1] == 0xbb && size
>= 3 && p
[2] == 0xbf
5646 && (flags
== FIO_ALL
|| flags
== FIO_UTF8
|| flags
== 0))
5648 name
= "utf-8"; /* EF BB BF */
5651 else if (p
[0] == 0xff && p
[1] == 0xfe)
5653 if (size
>= 4 && p
[2] == 0 && p
[3] == 0
5654 && (flags
== FIO_ALL
|| flags
== (FIO_UCS4
| FIO_ENDIAN_L
)))
5656 name
= "ucs-4le"; /* FF FE 00 00 */
5659 else if (flags
== (FIO_UCS2
| FIO_ENDIAN_L
))
5660 name
= "ucs-2le"; /* FF FE */
5661 else if (flags
== FIO_ALL
|| flags
== (FIO_UTF16
| FIO_ENDIAN_L
))
5662 /* utf-16le is preferred, it also works for ucs-2le text */
5663 name
= "utf-16le"; /* FF FE */
5665 else if (p
[0] == 0xfe && p
[1] == 0xff
5666 && (flags
== FIO_ALL
|| flags
== FIO_UCS2
|| flags
== FIO_UTF16
))
5668 /* Default to utf-16, it works also for ucs-2 text. */
5669 if (flags
== FIO_UCS2
)
5670 name
= "ucs-2"; /* FE FF */
5672 name
= "utf-16"; /* FE FF */
5674 else if (size
>= 4 && p
[0] == 0 && p
[1] == 0 && p
[2] == 0xfe
5675 && p
[3] == 0xff && (flags
== FIO_ALL
|| flags
== FIO_UCS4
))
5677 name
= "ucs-4"; /* 00 00 FE FF */
5682 return (char_u
*)name
;
5686 * Generate a BOM in "buf[4]" for encoding "name".
5687 * Return the length of the BOM (zero when no BOM).
5697 flags
= get_fio_flags(name
);
5699 /* Can't put a BOM in a non-Unicode file. */
5700 if (flags
== FIO_LATIN1
|| flags
== 0)
5703 if (flags
== FIO_UTF8
) /* UTF-8 */
5711 (void)ucs2bytes(0xfeff, &p
, flags
);
5712 return (int)(p
- buf
);
5716 #if defined(FEAT_VIMINFO) || defined(FEAT_BROWSE) || \
5717 defined(FEAT_QUICKFIX) || defined(FEAT_AUTOCMD) || defined(PROTO)
5719 * Try to find a shortname by comparing the fullname with the current
5721 * Returns "full_path" or pointer into "full_path" if shortened.
5724 shorten_fname1(full_path
)
5727 char_u dirname
[MAXPATHL
];
5728 char_u
*p
= full_path
;
5730 if (mch_dirname(dirname
, MAXPATHL
) == OK
)
5732 p
= shorten_fname(full_path
, dirname
);
5733 if (p
== NULL
|| *p
== NUL
)
5741 * Try to find a shortname by comparing the fullname with the current
5743 * Returns NULL if not shorter name possible, pointer into "full_path"
5747 shorten_fname(full_path
, dir_name
)
5754 if (full_path
== NULL
)
5756 len
= (int)STRLEN(dir_name
);
5757 if (fnamencmp(dir_name
, full_path
, len
) == 0)
5759 p
= full_path
+ len
;
5760 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
5762 * MSDOS: when a file is in the root directory, dir_name will end in a
5763 * slash, since C: by itself does not define a specific dir. In this
5764 * case p may already be correct. <negri>
5766 if (!((len
> 2) && (*(p
- 2) == ':')))
5769 if (vim_ispathsep(*p
))
5771 #ifndef VMS /* the path separator is always part of the path */
5777 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
5779 * When using a file in the current drive, remove the drive name:
5780 * "A:\dir\file" -> "\dir\file". This helps when moving a session file on
5781 * a floppy from "A:\dir" to "B:\dir".
5784 && TOUPPER_LOC(full_path
[0]) == TOUPPER_LOC(dir_name
[0])
5785 && full_path
[1] == ':'
5786 && vim_ispathsep(full_path
[2]))
5795 * Shorten filenames for all buffers.
5796 * When "force" is TRUE: Use full path from now on for files currently being
5797 * edited, both for file name and swap file name. Try to shorten the file
5798 * names a bit, if safe to do so.
5799 * When "force" is FALSE: Only try to shorten absolute file names.
5800 * For buffers that have buftype "nofile" or "scratch": never change the file
5804 shorten_fnames(force
)
5807 char_u dirname
[MAXPATHL
];
5811 mch_dirname(dirname
, MAXPATHL
);
5812 for (buf
= firstbuf
; buf
!= NULL
; buf
= buf
->b_next
)
5814 if (buf
->b_fname
!= NULL
5815 #ifdef FEAT_QUICKFIX
5818 && !path_with_url(buf
->b_fname
)
5820 || buf
->b_sfname
== NULL
5821 || mch_isFullName(buf
->b_sfname
)))
5823 vim_free(buf
->b_sfname
);
5824 buf
->b_sfname
= NULL
;
5825 p
= shorten_fname(buf
->b_ffname
, dirname
);
5828 buf
->b_sfname
= vim_strsave(p
);
5829 buf
->b_fname
= buf
->b_sfname
;
5831 if (p
== NULL
|| buf
->b_fname
== NULL
)
5832 buf
->b_fname
= buf
->b_ffname
;
5835 /* Always make the swap file name a full path, a "nofile" buffer may
5836 * also have a swap file. */
5837 mf_fullname(buf
->b_ml
.ml_mfp
);
5840 status_redraw_all();
5841 redraw_tabline
= TRUE
;
5845 #if (defined(FEAT_DND) && defined(FEAT_GUI_GTK)) \
5846 || defined(FEAT_GUI_MSWIN) \
5847 || defined(FEAT_GUI_MAC) \
5849 || defined(FEAT_GUI_MACVIM)
5851 * Shorten all filenames in "fnames[count]" by current directory.
5854 shorten_filenames(fnames
, count
)
5859 char_u dirname
[MAXPATHL
];
5862 if (fnames
== NULL
|| count
< 1)
5864 mch_dirname(dirname
, sizeof(dirname
));
5865 for (i
= 0; i
< count
; ++i
)
5867 if ((p
= shorten_fname(fnames
[i
], dirname
)) != NULL
)
5869 /* shorten_fname() returns pointer in given "fnames[i]". If free
5870 * "fnames[i]" first, "p" becomes invalid. So we need to copy
5871 * "p" first then free fnames[i]. */
5873 vim_free(fnames
[i
]);
5881 * add extension to file name - change path/fo.o.h to path/fo.o.h.ext or
5882 * fo_o_h.ext for MSDOS or when shortname option set.
5884 * Assumed that fname is a valid name found in the filesystem we assure that
5885 * the return value is a different name and ends in 'ext'.
5886 * "ext" MUST be at most 4 characters long if it starts with a dot, 3
5887 * characters otherwise.
5888 * Space for the returned name is allocated, must be freed later.
5889 * Returns NULL when out of memory.
5892 modname(fname
, ext
, prepend_dot
)
5893 char_u
*fname
, *ext
;
5894 int prepend_dot
; /* may prepend a '.' to file name */
5900 (curbuf
->b_p_sn
|| curbuf
->b_shortname
),
5902 fname
, ext
, prepend_dot
);
5906 buf_modname(shortname
, fname
, ext
, prepend_dot
)
5907 int shortname
; /* use 8.3 file name */
5908 char_u
*fname
, *ext
;
5909 int prepend_dot
; /* may prepend a '.' to file name */
5915 int fnamelen
, extlen
;
5917 extlen
= (int)STRLEN(ext
);
5920 * If there is no file name we must get the name of the current directory
5921 * (we need the full path in case :cd is used).
5923 if (fname
== NULL
|| *fname
== NUL
)
5925 retval
= alloc((unsigned)(MAXPATHL
+ extlen
+ 3));
5928 if (mch_dirname(retval
, MAXPATHL
) == FAIL
||
5929 (fnamelen
= (int)STRLEN(retval
)) == 0)
5934 if (!after_pathsep(retval
, retval
+ fnamelen
))
5936 retval
[fnamelen
++] = PATHSEP
;
5937 retval
[fnamelen
] = NUL
;
5940 prepend_dot
= FALSE
; /* nothing to prepend a dot to */
5945 fnamelen
= (int)STRLEN(fname
);
5946 retval
= alloc((unsigned)(fnamelen
+ extlen
+ 3));
5949 STRCPY(retval
, fname
);
5951 vms_remove_version(retval
); /* we do not need versions here */
5956 * search backwards until we hit a '/', '\' or ':' replacing all '.'
5957 * by '_' for MSDOS or when shortname option set and ext starts with a dot.
5958 * Then truncate what is after the '/', '\' or ':' to 8 characters for
5959 * MSDOS and 26 characters for AMIGA, a lot more for UNIX.
5961 for (ptr
= retval
+ fnamelen
; ptr
> retval
; mb_ptr_back(retval
, ptr
))
5965 # ifdef USE_LONG_FNAME
5966 && (!USE_LONG_FNAME
|| shortname
)
5968 # ifndef SHORT_FNAME
5973 if (*ptr
== '.') /* replace '.' by '_' */
5976 if (vim_ispathsep(*ptr
))
5983 /* the file name has at most BASENAMELEN characters. */
5985 if (STRLEN(ptr
) > (unsigned)BASENAMELEN
)
5986 ptr
[BASENAMELEN
] = '\0';
5989 s
= ptr
+ STRLEN(ptr
);
5992 * For 8.3 file names we may have to reduce the length.
5994 #ifdef USE_LONG_FNAME
5995 if (!USE_LONG_FNAME
|| shortname
)
5997 # ifndef SHORT_FNAME
6003 * If there is no file name, or the file name ends in '/', and the
6004 * extension starts with '.', put a '_' before the dot, because just
6005 * ".ext" is invalid.
6007 if (fname
== NULL
|| *fname
== NUL
6008 || vim_ispathsep(fname
[STRLEN(fname
) - 1]))
6018 * If the extension starts with '.', truncate the base name at 8
6022 /* We normally use '/', but swap files are '_' */
6023 else if (*ext
== '/' || *ext
== '_')
6025 else if (*ext
== '.')
6028 if ((size_t)(s
- ptr
) > (size_t)8)
6035 * If the extension doesn't start with '.', and the file name
6036 * doesn't have an extension yet, append a '.'
6039 else if ((e
= vim_strchr(ptr
, '/')) == NULL
)
6042 else if ((e
= vim_strchr(ptr
, '.')) == NULL
)
6046 * If the extension doesn't start with '.', and there already is an
6047 * extension, it may need to be truncated
6049 else if ((int)STRLEN(e
) + extlen
> 4)
6052 #if defined(OS2) || defined(USE_LONG_FNAME) || defined(WIN3264)
6054 * If there is no file name, and the extension starts with '.', put a
6055 * '_' before the dot, because just ".ext" may be invalid if it's on a
6056 * FAT partition, and on HPFS it doesn't matter.
6058 else if ((fname
== NULL
|| *fname
== NUL
) && *ext
== '.')
6063 * Append the extension.
6064 * ext can start with '.' and cannot exceed 3 more characters.
6072 if (prepend_dot
&& !shortname
&& *(e
= gettail(retval
)) !=
6078 #ifdef USE_LONG_FNAME
6093 * Check that, after appending the extension, the file name is really
6096 if (fname
!= NULL
&& STRCMP(fname
, retval
) == 0)
6098 /* we search for a character that can be replaced by '_' */
6107 if (s
< ptr
) /* fname was "________.<ext>", how tricky! */
6114 * Like fgets(), but if the file line is too long, it is truncated and the
6115 * rest of the line is thrown away. Returns TRUE for end-of-file.
6118 vim_fgets(buf
, size
, fp
)
6124 #define FGETS_SIZE 200
6125 char tbuf
[FGETS_SIZE
];
6127 buf
[size
- 2] = NUL
;
6129 eof
= fgets_cr((char *)buf
, size
, fp
);
6131 eof
= fgets((char *)buf
, size
, fp
);
6133 if (buf
[size
- 2] != NUL
&& buf
[size
- 2] != '\n')
6135 buf
[size
- 1] = NUL
; /* Truncate the line */
6137 /* Now throw away the rest of the line: */
6140 tbuf
[FGETS_SIZE
- 2] = NUL
;
6142 ignoredp
= fgets_cr((char *)tbuf
, FGETS_SIZE
, fp
);
6144 ignoredp
= fgets((char *)tbuf
, FGETS_SIZE
, fp
);
6146 } while (tbuf
[FGETS_SIZE
- 2] != NUL
&& tbuf
[FGETS_SIZE
- 2] != '\n');
6148 return (eof
== NULL
);
6151 #if defined(USE_CR) || defined(PROTO)
6153 * Like vim_fgets(), but accept any line terminator: CR, CR-LF or LF.
6154 * Returns TRUE for end-of-file.
6155 * Only used for the Mac, because it's much slower than vim_fgets().
6158 tag_fgets(buf
, size
, fp
)
6177 /* Always store a NL for end-of-line. */
6181 if (c
!= '\n') /* Macintosh format: single CR. */
6196 * rename() only works if both files are on the same file system, this
6197 * function will (attempts to?) copy the file across if rename fails -- webb
6198 * Return -1 for failure, 0 for success.
6201 vim_rename(from
, to
)
6208 char *errmsg
= NULL
;
6216 vim_acl_T acl
; /* ACL from original file */
6218 #if defined(UNIX) || defined(CASE_INSENSITIVE_FILENAME)
6219 int use_tmp_file
= FALSE
;
6223 * When the names are identical, there is nothing to do. When they refer
6224 * to the same file (ignoring case and slash/backslash differences) but
6225 * the file name differs we need to go through a temp file.
6227 if (fnamecmp(from
, to
) == 0)
6229 #ifdef CASE_INSENSITIVE_FILENAME
6230 if (STRCMP(gettail(from
), gettail(to
)) != 0)
6231 use_tmp_file
= TRUE
;
6238 * Fail if the "from" file doesn't exist. Avoids that "to" is deleted.
6240 if (mch_stat((char *)from
, &st
) < 0)
6247 /* It's possible for the source and destination to be the same file.
6248 * This happens when "from" and "to" differ in case and are on a FAT32
6249 * filesystem. In that case go through a temp file name. */
6250 if (mch_stat((char *)to
, &st_to
) >= 0
6251 && st
.st_dev
== st_to
.st_dev
6252 && st
.st_ino
== st_to
.st_ino
)
6253 use_tmp_file
= TRUE
;
6257 #if defined(UNIX) || defined(CASE_INSENSITIVE_FILENAME)
6260 char tempname
[MAXPATHL
+ 1];
6263 * Find a name that doesn't exist and is in the same directory.
6264 * Rename "from" to "tempname" and then rename "tempname" to "to".
6266 if (STRLEN(from
) >= MAXPATHL
- 5)
6268 STRCPY(tempname
, from
);
6269 for (n
= 123; n
< 99999; ++n
)
6271 sprintf((char *)gettail((char_u
*)tempname
), "%d", n
);
6272 if (mch_stat(tempname
, &st
) < 0)
6274 if (mch_rename((char *)from
, tempname
) == 0)
6276 if (mch_rename(tempname
, (char *)to
) == 0)
6278 /* Strange, the second step failed. Try moving the
6279 * file back and return failure. */
6280 mch_rename(tempname
, (char *)from
);
6283 /* If it fails for one temp name it will most likely fail
6284 * for any temp name, give up. */
6293 * Delete the "to" file, this is required on some systems to make the
6294 * mch_rename() work, on other systems it makes sure that we don't have
6295 * two files when the mch_rename() fails.
6300 * With MSDOS-compatible filesystems (crossdos, messydos) it is possible
6301 * that the name of the "to" file is the same as the "from" file, even
6302 * though the names are different. To avoid the chance of accidentally
6303 * deleting the "from" file (horror!) we lock it during the remove.
6305 * When used for making a backup before writing the file: This should not
6306 * happen with ":w", because startscript() should detect this problem and
6307 * set buf->b_shortname, causing modname() to return a correct ".bak" file
6308 * name. This problem does exist with ":w filename", but then the
6309 * original file will be somewhere else so the backup isn't really
6310 * important. If autoscripting is off the rename may fail.
6312 flock
= Lock((UBYTE
*)from
, (long)ACCESS_READ
);
6321 * First try a normal rename, return if it works.
6323 if (mch_rename((char *)from
, (char *)to
) == 0)
6327 * Rename() failed, try copying the file.
6329 perm
= mch_getperm(from
);
6331 /* For systems that support ACL: get the ACL from the original file. */
6332 acl
= mch_get_acl(from
);
6334 fd_in
= mch_open((char *)from
, O_RDONLY
|O_EXTRA
, 0);
6343 /* Create the new file with same permissions as the original. */
6344 fd_out
= mch_open((char *)to
,
6345 O_CREAT
|O_EXCL
|O_WRONLY
|O_EXTRA
|O_NOFOLLOW
, (int)perm
);
6355 buffer
= (char *)alloc(BUFSIZE
);
6366 while ((n
= vim_read(fd_in
, buffer
, BUFSIZE
)) > 0)
6367 if (vim_write(fd_out
, buffer
, n
) != n
)
6369 errmsg
= _("E208: Error writing to \"%s\"");
6375 if (close(fd_out
) < 0)
6376 errmsg
= _("E209: Error closing \"%s\"");
6379 errmsg
= _("E210: Error reading \"%s\"");
6382 #ifndef UNIX /* for Unix mch_open() already set the permission */
6383 mch_setperm(to
, perm
);
6386 mch_set_acl(to
, acl
);
6398 static int already_warned
= FALSE
;
6399 #ifdef FEAT_GUI_MACVIM
6400 static int default_reload_choice
= 0;
6404 * Check if any not hidden buffer has been changed.
6405 * Postpone the check if there are characters in the stuff buffer, a global
6406 * command is being executed, a mapping is being executed or an autocommand is
6408 * Returns TRUE if some message was written (screen should be redrawn and
6409 * cursor positioned).
6412 check_timestamps(focus
)
6413 int focus
; /* called for GUI focus event */
6419 /* Don't check timestamps while system() or another low-level function may
6420 * cause us to lose and gain focus. */
6421 if (no_check_timestamps
> 0)
6424 /* Avoid doing a check twice. The OK/Reload dialog can cause a focus
6425 * event and we would keep on checking if the file is steadily growing.
6426 * Do check again after typing something. */
6427 if (focus
&& did_check_timestamps
)
6429 need_check_timestamps
= TRUE
;
6433 if (!stuff_empty() || global_busy
|| !typebuf_typed()
6435 || autocmd_busy
|| curbuf_lock
> 0 || allbuf_lock
> 0
6438 need_check_timestamps
= TRUE
; /* check later */
6442 did_check_timestamps
= TRUE
;
6443 already_warned
= FALSE
;
6444 #ifdef FEAT_GUI_MACVIM
6445 default_reload_choice
= 0;
6447 for (buf
= firstbuf
; buf
!= NULL
; )
6449 /* Only check buffers in a window. */
6450 if (buf
->b_nwindows
> 0)
6452 n
= buf_check_timestamp(buf
, focus
);
6455 if (n
> 0 && !buf_valid(buf
))
6457 /* Autocommands have removed the buffer, start at the
6458 * first one again. */
6465 #ifdef FEAT_GUI_MACVIM
6466 default_reload_choice
= 0;
6469 need_check_timestamps
= FALSE
;
6470 if (need_wait_return
&& didit
== 2)
6472 /* make sure msg isn't overwritten */
6473 msg_puts((char_u
*)"\n");
6481 * Move all the lines from buffer "frombuf" to buffer "tobuf".
6482 * Return OK or FAIL. When FAIL "tobuf" is incomplete and/or "frombuf" is not
6486 move_lines(frombuf
, tobuf
)
6490 buf_T
*tbuf
= curbuf
;
6495 /* Copy the lines in "frombuf" to "tobuf". */
6497 for (lnum
= 1; lnum
<= frombuf
->b_ml
.ml_line_count
; ++lnum
)
6499 p
= vim_strsave(ml_get_buf(frombuf
, lnum
, FALSE
));
6500 if (p
== NULL
|| ml_append(lnum
- 1, p
, 0, FALSE
) == FAIL
)
6509 /* Delete all the lines in "frombuf". */
6513 for (lnum
= curbuf
->b_ml
.ml_line_count
; lnum
> 0; --lnum
)
6514 if (ml_delete(lnum
, FALSE
) == FAIL
)
6516 /* Oops! We could try putting back the saved lines, but that
6517 * might fail again... */
6528 * Check if buffer "buf" has been changed.
6529 * Also check if the file for a new buffer unexpectedly appeared.
6530 * return 1 if a changed buffer was found.
6531 * return 2 if a message has been displayed.
6532 * return 0 otherwise.
6535 buf_check_timestamp(buf
, focus
)
6537 int focus UNUSED
; /* called for GUI focus event */
6546 int helpmesg
= FALSE
;
6548 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG)
6549 int can_reload
= FALSE
;
6551 size_t orig_size
= buf
->b_orig_size
;
6552 int orig_mode
= buf
->b_orig_mode
;
6554 int save_mouse_correct
= need_mouse_correct
;
6557 static int busy
= FALSE
;
6563 /* If there is no file name, the buffer is not loaded, 'buftype' is
6564 * set, we are in the middle of a save or being called recursively: ignore
6566 if (buf
->b_ffname
== NULL
6567 || buf
->b_ml
.ml_mfp
== NULL
6568 #if defined(FEAT_QUICKFIX)
6569 || *buf
->b_p_bt
!= NUL
6575 #ifdef FEAT_NETBEANS_INTG
6576 || isNetbeansBuffer(buf
)
6581 if ( !(buf
->b_flags
& BF_NOTEDITED
)
6582 && buf
->b_mtime
!= 0
6583 && ((stat_res
= mch_stat((char *)buf
->b_ffname
, &st
)) < 0
6584 || time_differs((long)st
.st_mtime
, buf
->b_mtime
)
6586 || (int)st
.st_mode
!= buf
->b_orig_mode
6588 || mch_getperm(buf
->b_ffname
) != buf
->b_orig_mode
6594 /* set b_mtime to stop further warnings (e.g., when executing
6595 * FileChangedShell autocmd) */
6599 buf
->b_orig_size
= 0;
6600 buf
->b_orig_mode
= 0;
6603 buf_store_time(buf
, &st
, buf
->b_ffname
);
6605 /* Don't do anything for a directory. Might contain the file
6607 if (mch_isdir(buf
->b_fname
))
6611 * If 'autoread' is set, the buffer has no changes and the file still
6612 * exists, reload the buffer. Use the buffer-local option value if it
6613 * was set, the global option value otherwise.
6615 else if ((buf
->b_p_ar
>= 0 ? buf
->b_p_ar
: p_ar
)
6616 && !bufIsChanged(buf
) && stat_res
>= 0)
6622 else if (bufIsChanged(buf
))
6623 reason
= "conflict";
6624 else if (orig_size
!= buf
->b_orig_size
|| buf_contents_changed(buf
))
6626 else if (orig_mode
!= buf
->b_orig_mode
)
6633 * Only give the warning if there are no FileChangedShell
6635 * Avoid being called recursively by setting "busy".
6639 set_vim_var_string(VV_FCS_REASON
, (char_u
*)reason
, -1);
6640 set_vim_var_string(VV_FCS_CHOICE
, (char_u
*)"", -1);
6643 n
= apply_autocmds(EVENT_FILECHANGEDSHELL
,
6644 buf
->b_fname
, buf
->b_fname
, FALSE
, buf
);
6649 if (!buf_valid(buf
))
6650 EMSG(_("E246: FileChangedShell autocommand deleted buffer"));
6652 s
= get_vim_var_str(VV_FCS_CHOICE
);
6653 if (STRCMP(s
, "reload") == 0 && *reason
!= 'd')
6655 else if (STRCMP(s
, "ask") == 0)
6665 mesg
= _("E211: File \"%s\" no longer available");
6669 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG)
6673 * Check if the file contents really changed to avoid
6674 * giving a warning when only the timestamp was set (e.g.,
6675 * checked out of CVS). Always warn when the buffer was
6678 if (reason
[2] == 'n')
6680 mesg
= _("W12: Warning: File \"%s\" has changed and the buffer was changed in Vim as well");
6681 mesg2
= _("See \":help W12\" for more info.");
6683 else if (reason
[1] == 'h')
6685 mesg
= _("W11: Warning: File \"%s\" has changed since editing started");
6686 mesg2
= _("See \":help W11\" for more info.");
6688 else if (*reason
== 'm')
6690 mesg
= _("W16: Warning: Mode of file \"%s\" has changed since editing started");
6691 mesg2
= _("See \":help W16\" for more info.");
6694 /* Only timestamp changed, store it to avoid a warning
6695 * in check_mtime() later. */
6696 buf
->b_mtime_read
= buf
->b_mtime
;
6702 else if ((buf
->b_flags
& BF_NEW
) && !(buf
->b_flags
& BF_NEW_W
)
6703 && vim_fexists(buf
->b_ffname
))
6706 mesg
= _("W13: Warning: File \"%s\" has been created after editing started");
6707 buf
->b_flags
|= BF_NEW_W
;
6708 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG)
6715 path
= home_replace_save(buf
, buf
->b_fname
);
6720 tbuf
= alloc((unsigned)(STRLEN(path
) + STRLEN(mesg
)
6721 + STRLEN(mesg2
) + 2));
6722 sprintf((char *)tbuf
, mesg
, path
);
6724 /* Set warningmsg here, before the unimportant and output-specific
6725 * mesg2 has been appended. */
6726 set_vim_var_string(VV_WARNINGMSG
, tbuf
, -1);
6728 #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG)
6734 STRCAT(tbuf
, mesg2
);
6736 # ifdef FEAT_GUI_MACVIM
6737 if (default_reload_choice
> 0)
6739 if (default_reload_choice
== 2)
6744 switch (do_dialog(VIM_WARNING
, (char_u
*)_("Warning"), tbuf
,
6745 (char_u
*)_("&OK\n&Load File\nLoad &All\n&Ignore All"),
6749 default_reload_choice
= 2;
6754 default_reload_choice
= 1;
6759 if (do_dialog(VIM_WARNING
, (char_u
*)_("Warning"), tbuf
,
6760 (char_u
*)_("&OK\n&Load File"), 1, NULL
) == 2)
6766 if (State
> NORMAL_BUSY
|| (State
& CMDLINE
) || already_warned
)
6771 STRCAT(tbuf
, mesg2
);
6778 # ifdef FEAT_AUTOCMD
6783 msg_puts_attr(tbuf
, hl_attr(HLF_E
) + MSG_HIST
);
6785 msg_puts_attr((char_u
*)mesg2
,
6786 hl_attr(HLF_W
) + MSG_HIST
);
6789 if (emsg_silent
== 0)
6795 /* give the user some time to think about it */
6796 ui_delay(1000L, TRUE
);
6798 /* don't redraw and erase the message */
6799 redraw_cmdline
= FALSE
;
6802 already_warned
= TRUE
;
6811 /* Reload the buffer. */
6812 buf_reload(buf
, orig_mode
);
6815 /* Trigger FileChangedShell when the file was changed in any way. */
6816 if (buf_valid(buf
) && retval
!= 0)
6817 (void)apply_autocmds(EVENT_FILECHANGEDSHELLPOST
,
6818 buf
->b_fname
, buf
->b_fname
, FALSE
, buf
);
6821 /* restore this in case an autocommand has set it; it would break
6823 need_mouse_correct
= save_mouse_correct
;
6830 * Reload a buffer that is already loaded.
6831 * Used when the file was changed outside of Vim.
6832 * "orig_mode" is buf->b_orig_mode before the need for reloading was detected.
6833 * buf->b_orig_mode may have been reset already.
6836 buf_reload(buf
, orig_mode
)
6842 linenr_T old_topline
;
6843 int old_ro
= buf
->b_p_ro
;
6848 /* set curwin/curbuf for "buf" and save some things */
6849 aucmd_prepbuf(&aco
, buf
);
6851 /* We only want to read the text from the file, not reset the syntax
6852 * highlighting, clear marks, diff status, etc. Force the fileformat
6853 * and encoding to be the same. */
6854 if (prep_exarg(&ea
, buf
) == OK
)
6856 old_cursor
= curwin
->w_cursor
;
6857 old_topline
= curwin
->w_topline
;
6860 * To behave like when a new file is edited (matters for
6861 * BufReadPost autocommands) we first need to delete the current
6862 * buffer contents. But if reading the file fails we should keep
6863 * the old contents. Can't use memory only, the file might be
6864 * too big. Use a hidden buffer to move the buffer contents to.
6870 /* Allocate a buffer without putting it in the buffer list. */
6871 savebuf
= buflist_new(NULL
, NULL
, (linenr_T
)1, BLN_DUMMY
);
6872 if (savebuf
!= NULL
&& buf
== curbuf
)
6874 /* Open the memline. */
6876 curwin
->w_buffer
= savebuf
;
6877 saved
= ml_open(curbuf
);
6879 curwin
->w_buffer
= buf
;
6881 if (savebuf
== NULL
|| saved
== FAIL
|| buf
!= curbuf
6882 || move_lines(buf
, savebuf
) == FAIL
)
6884 EMSG2(_("E462: Could not prepare for reloading \"%s\""),
6892 curbuf
->b_flags
|= BF_CHECK_RO
; /* check for RO again */
6894 keep_filetype
= TRUE
; /* don't detect 'filetype' */
6896 if (readfile(buf
->b_ffname
, buf
->b_fname
, (linenr_T
)0,
6898 (linenr_T
)MAXLNUM
, &ea
, READ_NEW
) == FAIL
)
6900 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
6903 EMSG2(_("E321: Could not reload \"%s\""), buf
->b_fname
);
6904 if (savebuf
!= NULL
&& buf_valid(savebuf
) && buf
== curbuf
)
6906 /* Put the text back from the save buffer. First
6907 * delete any lines that readfile() added. */
6909 if (ml_delete(buf
->b_ml
.ml_line_count
, FALSE
) == FAIL
)
6911 (void)move_lines(savebuf
, buf
);
6914 else if (buf
== curbuf
)
6916 /* Mark the buffer as unmodified and free undo info. */
6917 unchanged(buf
, TRUE
);
6924 if (savebuf
!= NULL
&& buf_valid(savebuf
))
6925 wipe_buffer(savebuf
, FALSE
);
6928 /* Invalidate diff info if necessary. */
6929 diff_invalidate(curbuf
);
6932 /* Restore the topline and cursor position and check it (lines may
6933 * have been removed). */
6934 if (old_topline
> curbuf
->b_ml
.ml_line_count
)
6935 curwin
->w_topline
= curbuf
->b_ml
.ml_line_count
;
6937 curwin
->w_topline
= old_topline
;
6938 curwin
->w_cursor
= old_cursor
;
6942 keep_filetype
= FALSE
;
6949 /* Update folds unless they are defined manually. */
6950 FOR_ALL_TAB_WINDOWS(tp
, wp
)
6951 if (wp
->w_buffer
== curwin
->w_buffer
6952 && !foldmethodIsManual(wp
))
6956 /* If the mode didn't change and 'readonly' was set, keep the old
6957 * value; the user probably used the ":view" command. But don't
6958 * reset it, might have had a read error. */
6959 if (orig_mode
== curbuf
->b_orig_mode
)
6960 curbuf
->b_p_ro
|= old_ro
;
6963 /* restore curwin/curbuf and a few other things */
6964 aucmd_restbuf(&aco
);
6965 /* Careful: autocommands may have made "buf" invalid! */
6969 buf_store_time(buf
, st
, fname
)
6972 char_u
*fname UNUSED
;
6974 buf
->b_mtime
= (long)st
->st_mtime
;
6975 buf
->b_orig_size
= (size_t)st
->st_size
;
6977 buf
->b_orig_mode
= (int)st
->st_mode
;
6979 buf
->b_orig_mode
= mch_getperm(fname
);
6984 * Adjust the line with missing eol, used for the next write.
6985 * Used for do_filter(), when the input lines for the filter are deleted.
6988 write_lnum_adjust(offset
)
6991 if (write_no_eol_lnum
!= 0) /* only if there is a missing eol */
6992 write_no_eol_lnum
+= offset
;
6995 #if defined(TEMPDIRNAMES) || defined(PROTO)
6996 static long temp_count
= 0; /* Temp filename counter. */
6999 * Delete the temp directory and all files it contains.
7008 if (vim_tempdir
!= NULL
)
7010 sprintf((char *)NameBuff
, "%s*", vim_tempdir
);
7011 if (gen_expand_wildcards(1, &NameBuff
, &file_count
, &files
,
7012 EW_DIR
|EW_FILE
|EW_SILENT
) == OK
)
7014 for (i
= 0; i
< file_count
; ++i
)
7015 mch_remove(files
[i
]);
7016 FreeWild(file_count
, files
);
7018 gettail(NameBuff
)[-1] = NUL
;
7019 (void)mch_rmdir(NameBuff
);
7021 vim_free(vim_tempdir
);
7028 * vim_tempname(): Return a unique name that can be used for a temp file.
7030 * The temp file is NOT created.
7032 * The returned pointer is to allocated memory.
7033 * The returned pointer is NULL if no valid name was found.
7036 vim_tempname(extra_char
)
7037 int extra_char UNUSED
; /* char to use in the name instead of '?' */
7040 char_u itmp
[L_tmpnam
]; /* use tmpnam() */
7042 char_u itmp
[TEMPNAMELEN
];
7046 static char *(tempdirs
[]) = {TEMPDIRNAMES
};
7055 * This will create a directory for private use by this instance of Vim.
7056 * This is done once, and the same directory is used for all temp files.
7057 * This method avoids security problems because of symlink attacks et al.
7058 * It's also a bit faster, because we only need to check for an existing
7059 * file when creating the directory and not for each temp file.
7061 if (vim_tempdir
== NULL
)
7064 * Try the entries in TEMPDIRNAMES to create the temp directory.
7066 for (i
= 0; i
< (int)(sizeof(tempdirs
) / sizeof(char *)); ++i
)
7068 /* expand $TMP, leave room for "/v1100000/999999999" */
7069 expand_env((char_u
*)tempdirs
[i
], itmp
, TEMPNAMELEN
- 20);
7070 if (mch_isdir(itmp
)) /* directory exists */
7073 /* If $TMP contains a forward slash (perhaps using bash or
7074 * tcsh), don't add a backslash, use a forward slash!
7075 * Adding 2 backslashes didn't work. */
7076 if (vim_strchr(itmp
, '/') != NULL
)
7082 /* Get an arbitrary number of up to 6 digits. When it's
7083 * unlikely that it already exists it will be faster,
7084 * otherwise it doesn't matter. The use of mkdir() avoids any
7085 * security problems because of the predictable number. */
7086 nr
= (mch_get_pid() + (long)time(NULL
)) % 1000000L;
7088 /* Try up to 10000 different values until we find a name that
7090 for (off
= 0; off
< 10000L; ++off
)
7093 #if defined(UNIX) || defined(VMS)
7097 sprintf((char *)itmp
+ STRLEN(itmp
), "v%ld", nr
+ off
);
7099 /* If mkdir() does not set errno to EEXIST, check for
7100 * existing file here. There is a race condition then,
7101 * although it's fail-safe. */
7102 if (mch_stat((char *)itmp
, &st
) >= 0)
7105 #if defined(UNIX) || defined(VMS)
7106 /* Make sure the umask doesn't remove the executable bit.
7107 * "repl" has been reported to use "177". */
7108 umask_save
= umask(077);
7110 r
= vim_mkdir(itmp
, 0700);
7111 #if defined(UNIX) || defined(VMS)
7112 (void)umask(umask_save
);
7118 /* Directory was created, use this name.
7119 * Expand to full path; When using the current
7120 * directory a ":cd" would confuse us. */
7121 buf
= alloc((unsigned)MAXPATHL
+ 1);
7124 if (vim_FullName(itmp
, buf
, MAXPATHL
, FALSE
)
7128 if (vim_strchr(buf
, '/') != NULL
)
7133 vim_tempdir
= vim_strsave(buf
);
7139 /* If the mkdir() didn't fail because the file/dir exists,
7140 * we probably can't create any dir here, try another
7142 if (errno
!= EEXIST
)
7146 if (vim_tempdir
!= NULL
)
7152 if (vim_tempdir
!= NULL
)
7154 /* There is no need to check if the file exists, because we own the
7155 * directory and nobody else creates a file in it. */
7156 sprintf((char *)itmp
, "%s%ld", vim_tempdir
, temp_count
++);
7157 return vim_strsave(itmp
);
7162 #else /* TEMPDIRNAMES */
7165 char szTempFile
[_MAX_PATH
+ 1];
7171 if (GetTempPath(_MAX_PATH
, szTempFile
) == 0)
7172 szTempFile
[0] = NUL
; /* GetTempPath() failed, use current dir */
7173 strcpy(buf4
, "VIM");
7174 buf4
[2] = extra_char
; /* make it "VIa", "VIb", etc. */
7175 if (GetTempFileName(szTempFile
, buf4
, 0, itmp
) == 0)
7177 /* GetTempFileName() will create the file, we don't want that */
7178 (void)DeleteFile(itmp
);
7180 /* Backslashes in a temp file name cause problems when filtering with
7181 * "sh". NOTE: This also checks 'shellcmdflag' to help those people who
7182 * didn't set 'shellslash'. */
7183 retval
= vim_strsave(itmp
);
7184 if (*p_shcf
== '-' || p_ssl
)
7185 for (p
= retval
; *p
; ++p
)
7190 # else /* WIN3264 */
7193 /* tmpnam() will make its own name */
7194 if (*tmpnam((char *)itmp
) == NUL
)
7200 /* mktemp() is not working on VMS. It seems to be
7201 * a do-nothing function. Therefore we use tempnam().
7203 sprintf((char *)itmp
, "VIM%c", extra_char
);
7204 p
= (char_u
*)tempnam("tmp:", (char *)itmp
);
7207 /* VMS will use '.LOG' if we don't explicitly specify an extension,
7208 * and VIM will then be unable to find the file later */
7210 STRCAT(itmp
, ".txt");
7216 STRCPY(itmp
, TEMPNAME
);
7217 if ((p
= vim_strchr(itmp
, '?')) != NULL
)
7219 if (mktemp((char *)itmp
) == NULL
)
7224 return vim_strsave(itmp
);
7225 # endif /* WIN3264 */
7226 #endif /* TEMPDIRNAMES */
7229 #if defined(BACKSLASH_IN_FILENAME) || defined(PROTO)
7231 * Convert all backslashes in fname to forward slashes in-place.
7234 forward_slash(fname
)
7239 for (p
= fname
; *p
!= NUL
; ++p
)
7241 /* The Big5 encoding can have '\' in the trail byte. */
7242 if (enc_dbcs
!= 0 && (*mb_ptr2len
)(p
) > 1)
7253 * Code for automatic commands.
7255 * Only included when "FEAT_AUTOCMD" has been defined.
7258 #if defined(FEAT_AUTOCMD) || defined(PROTO)
7261 * The autocommands are stored in a list for each event.
7262 * Autocommands for the same pattern, that are consecutive, are joined
7263 * together, to avoid having to match the pattern too often.
7264 * The result is an array of Autopat lists, which point to AutoCmd lists:
7266 * first_autopat[0] --> Autopat.next --> Autopat.next --> NULL
7267 * Autopat.cmds Autopat.cmds
7270 * AutoCmd.next AutoCmd.next
7278 * first_autopat[1] --> Autopat.next --> NULL
7288 * The order of AutoCmds is important, this is the order in which they were
7289 * defined and will have to be executed.
7291 typedef struct AutoCmd
7293 char_u
*cmd
; /* The command to be executed (NULL
7294 when command has been removed) */
7295 char nested
; /* If autocommands nest here */
7296 char last
; /* last command in list */
7298 scid_T scriptID
; /* script ID where defined */
7300 struct AutoCmd
*next
; /* Next AutoCmd in list */
7303 typedef struct AutoPat
7305 int group
; /* group ID */
7306 char_u
*pat
; /* pattern as typed (NULL when pattern
7307 has been removed) */
7308 int patlen
; /* strlen() of pat */
7309 regprog_T
*reg_prog
; /* compiled regprog for pattern */
7310 char allow_dirs
; /* Pattern may match whole path */
7311 char last
; /* last pattern for apply_autocmds() */
7312 AutoCmd
*cmds
; /* list of commands to do */
7313 struct AutoPat
*next
; /* next AutoPat in AutoPat list */
7314 int buflocal_nr
; /* !=0 for buffer-local AutoPat */
7317 static struct event_name
7319 char *name
; /* event name */
7320 event_T event
; /* event number */
7323 {"BufAdd", EVENT_BUFADD
},
7324 {"BufCreate", EVENT_BUFADD
},
7325 {"BufDelete", EVENT_BUFDELETE
},
7326 {"BufEnter", EVENT_BUFENTER
},
7327 {"BufFilePost", EVENT_BUFFILEPOST
},
7328 {"BufFilePre", EVENT_BUFFILEPRE
},
7329 {"BufHidden", EVENT_BUFHIDDEN
},
7330 {"BufLeave", EVENT_BUFLEAVE
},
7331 {"BufNew", EVENT_BUFNEW
},
7332 {"BufNewFile", EVENT_BUFNEWFILE
},
7333 {"BufRead", EVENT_BUFREADPOST
},
7334 {"BufReadCmd", EVENT_BUFREADCMD
},
7335 {"BufReadPost", EVENT_BUFREADPOST
},
7336 {"BufReadPre", EVENT_BUFREADPRE
},
7337 {"BufUnload", EVENT_BUFUNLOAD
},
7338 {"BufWinEnter", EVENT_BUFWINENTER
},
7339 {"BufWinLeave", EVENT_BUFWINLEAVE
},
7340 {"BufWipeout", EVENT_BUFWIPEOUT
},
7341 {"BufWrite", EVENT_BUFWRITEPRE
},
7342 {"BufWritePost", EVENT_BUFWRITEPOST
},
7343 {"BufWritePre", EVENT_BUFWRITEPRE
},
7344 {"BufWriteCmd", EVENT_BUFWRITECMD
},
7345 {"CmdwinEnter", EVENT_CMDWINENTER
},
7346 {"CmdwinLeave", EVENT_CMDWINLEAVE
},
7347 {"ColorScheme", EVENT_COLORSCHEME
},
7348 {"CursorHold", EVENT_CURSORHOLD
},
7349 {"CursorHoldI", EVENT_CURSORHOLDI
},
7350 {"CursorMoved", EVENT_CURSORMOVED
},
7351 {"CursorMovedI", EVENT_CURSORMOVEDI
},
7352 {"EncodingChanged", EVENT_ENCODINGCHANGED
},
7353 {"FileEncoding", EVENT_ENCODINGCHANGED
},
7354 {"FileAppendPost", EVENT_FILEAPPENDPOST
},
7355 {"FileAppendPre", EVENT_FILEAPPENDPRE
},
7356 {"FileAppendCmd", EVENT_FILEAPPENDCMD
},
7357 {"FileChangedShell",EVENT_FILECHANGEDSHELL
},
7358 {"FileChangedShellPost",EVENT_FILECHANGEDSHELLPOST
},
7359 {"FileChangedRO", EVENT_FILECHANGEDRO
},
7360 {"FileReadPost", EVENT_FILEREADPOST
},
7361 {"FileReadPre", EVENT_FILEREADPRE
},
7362 {"FileReadCmd", EVENT_FILEREADCMD
},
7363 {"FileType", EVENT_FILETYPE
},
7364 {"FileWritePost", EVENT_FILEWRITEPOST
},
7365 {"FileWritePre", EVENT_FILEWRITEPRE
},
7366 {"FileWriteCmd", EVENT_FILEWRITECMD
},
7367 {"FilterReadPost", EVENT_FILTERREADPOST
},
7368 {"FilterReadPre", EVENT_FILTERREADPRE
},
7369 {"FilterWritePost", EVENT_FILTERWRITEPOST
},
7370 {"FilterWritePre", EVENT_FILTERWRITEPRE
},
7371 {"FocusGained", EVENT_FOCUSGAINED
},
7372 {"FocusLost", EVENT_FOCUSLOST
},
7373 {"FuncUndefined", EVENT_FUNCUNDEFINED
},
7374 {"GUIEnter", EVENT_GUIENTER
},
7375 {"GUIFailed", EVENT_GUIFAILED
},
7376 {"InsertChange", EVENT_INSERTCHANGE
},
7377 {"InsertEnter", EVENT_INSERTENTER
},
7378 {"InsertLeave", EVENT_INSERTLEAVE
},
7379 {"MenuPopup", EVENT_MENUPOPUP
},
7380 {"QuickFixCmdPost", EVENT_QUICKFIXCMDPOST
},
7381 {"QuickFixCmdPre", EVENT_QUICKFIXCMDPRE
},
7382 {"RemoteReply", EVENT_REMOTEREPLY
},
7383 {"SessionLoadPost", EVENT_SESSIONLOADPOST
},
7384 {"ShellCmdPost", EVENT_SHELLCMDPOST
},
7385 {"ShellFilterPost", EVENT_SHELLFILTERPOST
},
7386 {"SourcePre", EVENT_SOURCEPRE
},
7387 {"SourceCmd", EVENT_SOURCECMD
},
7388 {"SpellFileMissing",EVENT_SPELLFILEMISSING
},
7389 {"StdinReadPost", EVENT_STDINREADPOST
},
7390 {"StdinReadPre", EVENT_STDINREADPRE
},
7391 {"SwapExists", EVENT_SWAPEXISTS
},
7392 {"Syntax", EVENT_SYNTAX
},
7393 {"TabEnter", EVENT_TABENTER
},
7394 {"TabLeave", EVENT_TABLEAVE
},
7395 {"TermChanged", EVENT_TERMCHANGED
},
7396 {"TermResponse", EVENT_TERMRESPONSE
},
7397 {"User", EVENT_USER
},
7398 {"VimEnter", EVENT_VIMENTER
},
7399 {"VimLeave", EVENT_VIMLEAVE
},
7400 {"VimLeavePre", EVENT_VIMLEAVEPRE
},
7401 {"WinEnter", EVENT_WINENTER
},
7402 {"WinLeave", EVENT_WINLEAVE
},
7403 {"VimResized", EVENT_VIMRESIZED
},
7407 static AutoPat
*first_autopat
[NUM_EVENTS
] =
7409 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
7410 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
7411 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
7412 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
7413 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
7414 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
7418 * struct used to keep status while executing autocommands for an event.
7420 typedef struct AutoPatCmd
7422 AutoPat
*curpat
; /* next AutoPat to examine */
7423 AutoCmd
*nextcmd
; /* next AutoCmd to execute */
7424 int group
; /* group being used */
7425 char_u
*fname
; /* fname to match with */
7426 char_u
*sfname
; /* sfname to match with */
7427 char_u
*tail
; /* tail of fname */
7428 event_T event
; /* current event */
7429 int arg_bufnr
; /* initially equal to <abuf>, set to zero when
7431 struct AutoPatCmd
*next
; /* chain of active apc-s for auto-invalidation*/
7434 static AutoPatCmd
*active_apc_list
= NULL
; /* stack of active autocommands */
7437 * augroups stores a list of autocmd group names.
7439 static garray_T augroups
= {0, 0, sizeof(char_u
*), 10, NULL
};
7440 #define AUGROUP_NAME(i) (((char_u **)augroups.ga_data)[i])
7443 * The ID of the current group. Group 0 is the default one.
7445 static int current_augroup
= AUGROUP_DEFAULT
;
7447 static int au_need_clean
= FALSE
; /* need to delete marked patterns */
7449 static void show_autocmd
__ARGS((AutoPat
*ap
, event_T event
));
7450 static void au_remove_pat
__ARGS((AutoPat
*ap
));
7451 static void au_remove_cmds
__ARGS((AutoPat
*ap
));
7452 static void au_cleanup
__ARGS((void));
7453 static int au_new_group
__ARGS((char_u
*name
));
7454 static void au_del_group
__ARGS((char_u
*name
));
7455 static event_T event_name2nr
__ARGS((char_u
*start
, char_u
**end
));
7456 static char_u
*event_nr2name
__ARGS((event_T event
));
7457 static char_u
*find_end_event
__ARGS((char_u
*arg
, int have_group
));
7458 static int event_ignored
__ARGS((event_T event
));
7459 static int au_get_grouparg
__ARGS((char_u
**argp
));
7460 static int do_autocmd_event
__ARGS((event_T event
, char_u
*pat
, int nested
, char_u
*cmd
, int forceit
, int group
));
7461 static char_u
*getnextac
__ARGS((int c
, void *cookie
, int indent
));
7462 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
));
7463 static void auto_next_pat
__ARGS((AutoPatCmd
*apc
, int stop_at_last
));
7466 static event_T last_event
;
7467 static int last_group
;
7468 static int autocmd_blocked
= 0; /* block all autocmds */
7471 * Show the autocommands for one AutoPat.
7474 show_autocmd(ap
, event
)
7480 /* Check for "got_int" (here and at various places below), which is set
7481 * when "q" has been hit for the "--more--" prompt */
7484 if (ap
->pat
== NULL
) /* pattern has been removed */
7490 if (event
!= last_event
|| ap
->group
!= last_group
)
7492 if (ap
->group
!= AUGROUP_DEFAULT
)
7494 if (AUGROUP_NAME(ap
->group
) == NULL
)
7495 msg_puts_attr((char_u
*)_("--Deleted--"), hl_attr(HLF_E
));
7497 msg_puts_attr(AUGROUP_NAME(ap
->group
), hl_attr(HLF_T
));
7498 msg_puts((char_u
*)" ");
7500 msg_puts_attr(event_nr2name(event
), hl_attr(HLF_T
));
7502 last_group
= ap
->group
;
7508 msg_outtrans(ap
->pat
);
7510 for (ac
= ap
->cmds
; ac
!= NULL
; ac
= ac
->next
)
7512 if (ac
->cmd
!= NULL
) /* skip removed commands */
7519 msg_outtrans(ac
->cmd
);
7522 last_set_msg(ac
->scriptID
);
7526 if (ac
->next
!= NULL
)
7537 * Mark an autocommand pattern for deletion.
7545 ap
->buflocal_nr
= -1;
7546 au_need_clean
= TRUE
;
7550 * Mark all commands for a pattern for deletion.
7558 for (ac
= ap
->cmds
; ac
!= NULL
; ac
= ac
->next
)
7563 au_need_clean
= TRUE
;
7567 * Cleanup autocommands and patterns that have been deleted.
7568 * This is only done when not executing autocommands.
7573 AutoPat
*ap
, **prev_ap
;
7574 AutoCmd
*ac
, **prev_ac
;
7577 if (autocmd_busy
|| !au_need_clean
)
7580 /* loop over all events */
7581 for (event
= (event_T
)0; (int)event
< (int)NUM_EVENTS
;
7582 event
= (event_T
)((int)event
+ 1))
7584 /* loop over all autocommand patterns */
7585 prev_ap
= &(first_autopat
[(int)event
]);
7586 for (ap
= *prev_ap
; ap
!= NULL
; ap
= *prev_ap
)
7588 /* loop over all commands for this pattern */
7589 prev_ac
= &(ap
->cmds
);
7590 for (ac
= *prev_ac
; ac
!= NULL
; ac
= *prev_ac
)
7592 /* remove the command if the pattern is to be deleted or when
7593 * the command has been marked for deletion */
7594 if (ap
->pat
== NULL
|| ac
->cmd
== NULL
)
7596 *prev_ac
= ac
->next
;
7601 prev_ac
= &(ac
->next
);
7604 /* remove the pattern if it has been marked for deletion */
7605 if (ap
->pat
== NULL
)
7607 *prev_ap
= ap
->next
;
7608 vim_free(ap
->reg_prog
);
7612 prev_ap
= &(ap
->next
);
7616 au_need_clean
= FALSE
;
7620 * Called when buffer is freed, to remove/invalidate related buffer-local
7624 aubuflocal_remove(buf
)
7631 /* invalidate currently executing autocommands */
7632 for (apc
= active_apc_list
; apc
; apc
= apc
->next
)
7633 if (buf
->b_fnum
== apc
->arg_bufnr
)
7636 /* invalidate buflocals looping through events */
7637 for (event
= (event_T
)0; (int)event
< (int)NUM_EVENTS
;
7638 event
= (event_T
)((int)event
+ 1))
7639 /* loop over all autocommand patterns */
7640 for (ap
= first_autopat
[(int)event
]; ap
!= NULL
; ap
= ap
->next
)
7641 if (ap
->buflocal_nr
== buf
->b_fnum
)
7648 _("auto-removing autocommand: %s <buffer=%d>"),
7649 event_nr2name(event
), buf
->b_fnum
);
7657 * Add an autocmd group name.
7658 * Return it's ID. Returns AUGROUP_ERROR (< 0) for error.
7666 i
= au_find_group(name
);
7667 if (i
== AUGROUP_ERROR
) /* the group doesn't exist yet, add it */
7669 /* First try using a free entry. */
7670 for (i
= 0; i
< augroups
.ga_len
; ++i
)
7671 if (AUGROUP_NAME(i
) == NULL
)
7673 if (i
== augroups
.ga_len
&& ga_grow(&augroups
, 1) == FAIL
)
7674 return AUGROUP_ERROR
;
7676 AUGROUP_NAME(i
) = vim_strsave(name
);
7677 if (AUGROUP_NAME(i
) == NULL
)
7678 return AUGROUP_ERROR
;
7679 if (i
== augroups
.ga_len
)
7692 i
= au_find_group(name
);
7693 if (i
== AUGROUP_ERROR
) /* the group doesn't exist */
7694 EMSG2(_("E367: No such group: \"%s\""), name
);
7697 vim_free(AUGROUP_NAME(i
));
7698 AUGROUP_NAME(i
) = NULL
;
7703 * Find the ID of an autocmd group name.
7704 * Return it's ID. Returns AUGROUP_ERROR (< 0) for error.
7712 for (i
= 0; i
< augroups
.ga_len
; ++i
)
7713 if (AUGROUP_NAME(i
) != NULL
&& STRCMP(AUGROUP_NAME(i
), name
) == 0)
7715 return AUGROUP_ERROR
;
7719 * Return TRUE if augroup "name" exists.
7725 return au_find_group(name
) != AUGROUP_ERROR
;
7729 * ":augroup {name}".
7732 do_augroup(arg
, del_group
)
7745 else if (STRICMP(arg
, "end") == 0) /* ":aug end": back to group 0 */
7746 current_augroup
= AUGROUP_DEFAULT
;
7747 else if (*arg
) /* ":aug xxx": switch to group xxx */
7749 i
= au_new_group(arg
);
7750 if (i
!= AUGROUP_ERROR
)
7751 current_augroup
= i
;
7753 else /* ":aug": list the group names */
7756 for (i
= 0; i
< augroups
.ga_len
; ++i
)
7758 if (AUGROUP_NAME(i
) != NULL
)
7760 msg_puts(AUGROUP_NAME(i
));
7761 msg_puts((char_u
*)" ");
7769 #if defined(EXITFREE) || defined(PROTO)
7773 for (current_augroup
= -1; current_augroup
< augroups
.ga_len
;
7775 do_autocmd((char_u
*)"", TRUE
);
7776 ga_clear_strings(&augroups
);
7781 * Return the event number for event name "start".
7782 * Return NUM_EVENTS if the event name was not found.
7783 * Return a pointer to the next event name in "end".
7786 event_name2nr(start
, end
)
7794 /* the event name ends with end of line, a blank or a comma */
7795 for (p
= start
; *p
&& !vim_iswhite(*p
) && *p
!= ','; ++p
)
7797 for (i
= 0; event_names
[i
].name
!= NULL
; ++i
)
7799 len
= (int)STRLEN(event_names
[i
].name
);
7800 if (len
== p
- start
&& STRNICMP(event_names
[i
].name
, start
, len
) == 0)
7806 if (event_names
[i
].name
== NULL
)
7808 return event_names
[i
].event
;
7812 * Return the name for event "event".
7815 event_nr2name(event
)
7820 for (i
= 0; event_names
[i
].name
!= NULL
; ++i
)
7821 if (event_names
[i
].event
== event
)
7822 return (char_u
*)event_names
[i
].name
;
7823 return (char_u
*)"Unknown";
7827 * Scan over the events. "*" stands for all events.
7830 find_end_event(arg
, have_group
)
7832 int have_group
; /* TRUE when group name was found */
7839 if (arg
[1] && !vim_iswhite(arg
[1]))
7841 EMSG2(_("E215: Illegal character after *: %s"), arg
);
7848 for (pat
= arg
; *pat
&& !vim_iswhite(*pat
); pat
= p
)
7850 if ((int)event_name2nr(pat
, &p
) >= (int)NUM_EVENTS
)
7853 EMSG2(_("E216: No such event: %s"), pat
);
7855 EMSG2(_("E216: No such group or event: %s"), pat
);
7864 * Return TRUE if "event" is included in 'eventignore'.
7867 event_ignored(event
)
7874 if (STRNICMP(p
, "all", 3) == 0 && (p
[3] == NUL
|| p
[3] == ','))
7876 if (event_name2nr(p
, &p
) == event
)
7884 * Return OK when the contents of p_ei is valid, FAIL otherwise.
7893 if (STRNICMP(p
, "all", 3) == 0 && (p
[3] == NUL
|| p
[3] == ','))
7899 else if (event_name2nr(p
, &p
) == NUM_EVENTS
)
7906 # if defined(FEAT_SYN_HL) || defined(PROTO)
7909 * Add "what" to 'eventignore' to skip loading syntax highlighting for every
7910 * buffer loaded into the window. "what" must start with a comma.
7911 * Returns the old value of 'eventignore' in allocated memory.
7914 au_event_disable(what
)
7920 save_ei
= vim_strsave(p_ei
);
7921 if (save_ei
!= NULL
)
7923 new_ei
= vim_strnsave(p_ei
, (int)(STRLEN(p_ei
) + STRLEN(what
)));
7926 STRCAT(new_ei
, what
);
7927 set_string_option_direct((char_u
*)"ei", -1, new_ei
,
7928 OPT_FREE
, SID_NONE
);
7936 au_event_restore(old_ei
)
7941 set_string_option_direct((char_u
*)"ei", -1, old_ei
,
7942 OPT_FREE
, SID_NONE
);
7946 # endif /* FEAT_SYN_HL */
7949 * do_autocmd() -- implements the :autocmd command. Can be used in the
7952 * :autocmd <event> <pat> <cmd> Add <cmd> to the list of commands that
7953 * will be automatically executed for <event>
7954 * when editing a file matching <pat>, in
7955 * the current group.
7956 * :autocmd <event> <pat> Show the auto-commands associated with
7957 * <event> and <pat>.
7958 * :autocmd <event> Show the auto-commands associated with
7960 * :autocmd Show all auto-commands.
7961 * :autocmd! <event> <pat> <cmd> Remove all auto-commands associated with
7962 * <event> and <pat>, and add the command
7963 * <cmd>, for the current group.
7964 * :autocmd! <event> <pat> Remove all auto-commands associated with
7965 * <event> and <pat> for the current group.
7966 * :autocmd! <event> Remove all auto-commands associated with
7967 * <event> for the current group.
7968 * :autocmd! Remove ALL auto-commands for the current
7971 * Multiple events and patterns may be given separated by commas. Here are
7973 * :autocmd bufread,bufenter *.c,*.h set tw=0 smartindent noic
7974 * :autocmd bufleave * set tw=79 nosmartindent ic infercase
7976 * :autocmd * *.c show all autocommands for *.c files.
7978 * Mostly a {group} argument can optionally appear before <event>.
7981 do_autocmd(arg
, forceit
)
7986 char_u
*envpat
= NULL
;
7989 int need_free
= FALSE
;
7994 * Check for a legal group name. If not, use AUGROUP_ALL.
7996 group
= au_get_grouparg(&arg
);
7997 if (arg
== NULL
) /* out of memory */
8001 * Scan over the events.
8002 * If we find an illegal name, return here, don't do anything.
8004 pat
= find_end_event(arg
, group
!= AUGROUP_ALL
);
8009 * Scan over the pattern. Put a NUL at the end.
8011 pat
= skipwhite(pat
);
8013 while (*cmd
&& (!vim_iswhite(*cmd
) || cmd
[-1] == '\\'))
8018 /* Expand environment variables in the pattern. Set 'shellslash', we want
8019 * forward slashes here. */
8020 if (vim_strchr(pat
, '$') != NULL
|| vim_strchr(pat
, '~') != NULL
)
8022 #ifdef BACKSLASH_IN_FILENAME
8023 int p_ssl_save
= p_ssl
;
8027 envpat
= expand_env_save(pat
);
8028 #ifdef BACKSLASH_IN_FILENAME
8036 * Check for "nested" flag.
8038 cmd
= skipwhite(cmd
);
8039 if (*cmd
!= NUL
&& STRNCMP(cmd
, "nested", 6) == 0 && vim_iswhite(cmd
[6]))
8042 cmd
= skipwhite(cmd
+ 6);
8046 * Find the start of the commands.
8047 * Expand <sfile> in it.
8051 cmd
= expand_sfile(cmd
);
8052 if (cmd
== NULL
) /* some error */
8058 * Print header when showing autocommands.
8060 if (!forceit
&& *cmd
== NUL
)
8062 /* Highlight title */
8063 MSG_PUTS_TITLE(_("\n--- Auto-Commands ---"));
8067 * Loop over the events.
8069 last_event
= (event_T
)-1; /* for listing the event name */
8070 last_group
= AUGROUP_ERROR
; /* for listing the group name */
8071 if (*arg
== '*' || *arg
== NUL
)
8073 for (event
= (event_T
)0; (int)event
< (int)NUM_EVENTS
;
8074 event
= (event_T
)((int)event
+ 1))
8075 if (do_autocmd_event(event
, pat
,
8076 nested
, cmd
, forceit
, group
) == FAIL
)
8081 while (*arg
&& !vim_iswhite(*arg
))
8082 if (do_autocmd_event(event_name2nr(arg
, &arg
), pat
,
8083 nested
, cmd
, forceit
, group
) == FAIL
)
8093 * Find the group ID in a ":autocmd" or ":doautocmd" argument.
8094 * The "argp" argument is advanced to the following argument.
8096 * Returns the group ID, AUGROUP_ERROR for error (out of memory).
8099 au_get_grouparg(argp
)
8104 char_u
*arg
= *argp
;
8105 int group
= AUGROUP_ALL
;
8107 p
= skiptowhite(arg
);
8110 group_name
= vim_strnsave(arg
, (int)(p
- arg
));
8111 if (group_name
== NULL
) /* out of memory */
8112 return AUGROUP_ERROR
;
8113 group
= au_find_group(group_name
);
8114 if (group
== AUGROUP_ERROR
)
8115 group
= AUGROUP_ALL
; /* no match, use all groups */
8117 *argp
= skipwhite(p
); /* match, skip over group name */
8118 vim_free(group_name
);
8124 * do_autocmd() for one event.
8125 * If *pat == NUL do for all patterns.
8126 * If *cmd == NUL show entries.
8127 * If forceit == TRUE delete entries.
8128 * If group is not AUGROUP_ALL, only use this group.
8131 do_autocmd_event(event
, pat
, nested
, cmd
, forceit
, group
)
8150 char_u buflocal_pat
[25]; /* for "<buffer=X>" */
8152 if (group
== AUGROUP_ALL
)
8153 findgroup
= current_augroup
;
8156 allgroups
= (group
== AUGROUP_ALL
&& !forceit
&& *cmd
== NUL
);
8159 * Show or delete all patterns for an event.
8163 for (ap
= first_autopat
[(int)event
]; ap
!= NULL
; ap
= ap
->next
)
8165 if (forceit
) /* delete the AutoPat, if it's in the current group */
8167 if (ap
->group
== findgroup
)
8170 else if (group
== AUGROUP_ALL
|| ap
->group
== group
)
8171 show_autocmd(ap
, event
);
8176 * Loop through all the specified patterns.
8178 for ( ; *pat
; pat
= (*endpat
== ',' ? endpat
+ 1 : endpat
))
8181 * Find end of the pattern.
8182 * Watch out for a comma in braces, like "*.\{obj,o\}".
8185 for (endpat
= pat
; *endpat
&& (*endpat
!= ',' || brace_level
8186 || endpat
[-1] == '\\'); ++endpat
)
8190 else if (*endpat
== '}')
8193 if (pat
== endpat
) /* ignore single comma */
8195 patlen
= (int)(endpat
- pat
);
8198 * detect special <buflocal[=X]> buffer-local patterns
8200 is_buflocal
= FALSE
;
8203 if (patlen
>= 7 && STRNCMP(pat
, "<buffer", 7) == 0
8204 && pat
[patlen
- 1] == '>')
8206 /* Error will be printed only for addition. printing and removing
8207 * will proceed silently. */
8210 buflocal_nr
= curbuf
->b_fnum
;
8211 else if (patlen
> 9 && pat
[7] == '=')
8214 if (patlen
== 13 && STRNICMP(pat
, "<buffer=abuf>", 13))
8215 buflocal_nr
= autocmd_bufnr
;
8217 else if (skipdigits(pat
+ 8) == pat
+ patlen
- 1)
8218 buflocal_nr
= atoi((char *)pat
+ 8);
8224 /* normalize pat into standard "<buffer>#N" form */
8225 sprintf((char *)buflocal_pat
, "<buffer=%d>", buflocal_nr
);
8226 pat
= buflocal_pat
; /* can modify pat and patlen */
8227 patlen
= (int)STRLEN(buflocal_pat
); /* but not endpat */
8231 * Find AutoPat entries with this pattern.
8233 prev_ap
= &first_autopat
[(int)event
];
8234 while ((ap
= *prev_ap
) != NULL
)
8236 if (ap
->pat
!= NULL
)
8238 /* Accept a pattern when:
8239 * - a group was specified and it's that group, or a group was
8240 * not specified and it's the current group, or a group was
8241 * not specified and we are listing
8242 * - the length of the pattern matches
8243 * - the pattern matches.
8244 * For <buffer[=X]>, this condition works because we normalize
8245 * all buffer-local patterns.
8247 if ((allgroups
|| ap
->group
== findgroup
)
8248 && ap
->patlen
== patlen
8249 && STRNCMP(pat
, ap
->pat
, patlen
) == 0)
8252 * Remove existing autocommands.
8253 * If adding any new autocmd's for this AutoPat, don't
8254 * delete the pattern from the autopat list, append to
8259 if (*cmd
!= NUL
&& ap
->next
== NULL
)
8268 * Show autocmd's for this autopat, or buflocals <buffer=X>
8270 else if (*cmd
== NUL
)
8271 show_autocmd(ap
, event
);
8274 * Add autocmd to this autopat, if it's the last one.
8276 else if (ap
->next
== NULL
)
8280 prev_ap
= &ap
->next
;
8284 * Add a new command.
8289 * If the pattern we want to add a command to does appear at the
8290 * end of the list (or not is not in the list at all), add the
8291 * pattern at the end of the list.
8295 /* refuse to add buffer-local ap if buffer number is invalid */
8296 if (is_buflocal
&& (buflocal_nr
== 0
8297 || buflist_findnr(buflocal_nr
) == NULL
))
8299 EMSGN(_("E680: <buffer=%d>: invalid buffer number "),
8304 ap
= (AutoPat
*)alloc((unsigned)sizeof(AutoPat
));
8307 ap
->pat
= vim_strnsave(pat
, patlen
);
8308 ap
->patlen
= patlen
;
8309 if (ap
->pat
== NULL
)
8317 ap
->buflocal_nr
= buflocal_nr
;
8318 ap
->reg_prog
= NULL
;
8324 ap
->buflocal_nr
= 0;
8325 reg_pat
= file_pat_to_reg_pat(pat
, endpat
,
8326 &ap
->allow_dirs
, TRUE
);
8327 if (reg_pat
!= NULL
)
8328 ap
->reg_prog
= vim_regcomp(reg_pat
, RE_MAGIC
);
8330 if (reg_pat
== NULL
|| ap
->reg_prog
== NULL
)
8340 if (group
== AUGROUP_ALL
)
8341 ap
->group
= current_augroup
;
8347 * Add the autocmd at the end of the AutoCmd list.
8349 prev_ac
= &(ap
->cmds
);
8350 while ((ac
= *prev_ac
) != NULL
)
8351 prev_ac
= &ac
->next
;
8352 ac
= (AutoCmd
*)alloc((unsigned)sizeof(AutoCmd
));
8355 ac
->cmd
= vim_strsave(cmd
);
8357 ac
->scriptID
= current_SID
;
8359 if (ac
->cmd
== NULL
)
8366 ac
->nested
= nested
;
8370 au_cleanup(); /* may really delete removed patterns/commands now */
8375 * Implementation of ":doautocmd [group] event [fname]".
8376 * Return OK for success, FAIL for failure;
8379 do_doautocmd(arg
, do_msg
)
8381 int do_msg
; /* give message for no matching autocmds? */
8384 int nothing_done
= TRUE
;
8388 * Check for a legal group name. If not, use AUGROUP_ALL.
8390 group
= au_get_grouparg(&arg
);
8391 if (arg
== NULL
) /* out of memory */
8396 EMSG(_("E217: Can't execute autocommands for ALL events"));
8401 * Scan over the events.
8402 * If we find an illegal name, return here, don't do anything.
8404 fname
= find_end_event(arg
, group
!= AUGROUP_ALL
);
8408 fname
= skipwhite(fname
);
8411 * Loop over the events.
8413 while (*arg
&& !vim_iswhite(*arg
))
8414 if (apply_autocmds_group(event_name2nr(arg
, &arg
),
8415 fname
, NULL
, TRUE
, group
, curbuf
, NULL
))
8416 nothing_done
= FALSE
;
8418 if (nothing_done
&& do_msg
)
8419 MSG(_("No matching autocommands"));
8422 return aborting() ? FAIL
: OK
;
8429 * ":doautoall": execute autocommands for each loaded buffer.
8440 * This is a bit tricky: For some commands curwin->w_buffer needs to be
8441 * equal to curbuf, but for some buffers there may not be a window.
8442 * So we change the buffer for the current window for a moment. This
8443 * gives problems when the autocommands make changes to the list of
8444 * buffers or windows...
8446 for (buf
= firstbuf
; buf
!= NULL
; buf
= buf
->b_next
)
8448 if (buf
->b_ml
.ml_mfp
!= NULL
)
8450 /* find a window for this buffer and save some values */
8451 aucmd_prepbuf(&aco
, buf
);
8453 /* execute the autocommands for this buffer */
8454 retval
= do_doautocmd(eap
->arg
, FALSE
);
8456 /* Execute the modeline settings, but don't set window-local
8457 * options if we are using the current window for another buffer. */
8458 do_modelines(curwin
== aucmd_win
? OPT_NOWIN
: 0);
8460 /* restore the current window */
8461 aucmd_restbuf(&aco
);
8463 /* stop if there is some error or buffer was deleted */
8464 if (retval
== FAIL
|| !buf_valid(buf
))
8469 check_cursor(); /* just in case lines got deleted */
8473 * Prepare for executing autocommands for (hidden) buffer "buf".
8474 * Search for a visible window containing the current buffer. If there isn't
8475 * one then use "aucmd_win".
8476 * Set "curbuf" and "curwin" to match "buf".
8477 * When FEAT_AUTOCMD is not defined another version is used, see below.
8480 aucmd_prepbuf(aco
, buf
)
8481 aco_save_T
*aco
; /* structure to save values in */
8482 buf_T
*buf
; /* new curbuf */
8489 /* Find a window that is for the new buffer */
8490 if (buf
== curbuf
) /* be quick when buf is curbuf */
8494 for (win
= firstwin
; win
!= NULL
; win
= win
->w_next
)
8495 if (win
->w_buffer
== buf
)
8501 /* Allocate "aucmd_win" when needed. If this fails (out of memory) fall
8502 * back to using the current window. */
8503 if (win
== NULL
&& aucmd_win
== NULL
)
8505 win_alloc_aucmd_win();
8506 if (aucmd_win
== NULL
)
8509 if (win
== NULL
&& aucmd_win_used
)
8510 /* Strange recursive autocommand, fall back to using the current
8511 * window. Expect a few side effects... */
8514 aco
->save_curwin
= curwin
;
8515 aco
->save_curbuf
= curbuf
;
8518 /* There is a window for "buf" in the current tab page, make it the
8519 * curwin. This is preferred, it has the least side effects (esp. if
8520 * "buf" is curbuf). */
8521 aco
->use_aucmd_win
= FALSE
;
8526 /* There is no window for "buf", use "aucmd_win". To minimize the side
8527 * effects, insert it in a the current tab page.
8528 * Anything related to a window (e.g., setting folds) may have
8529 * unexpected results. */
8530 aco
->use_aucmd_win
= TRUE
;
8531 aucmd_win_used
= TRUE
;
8532 aucmd_win
->w_buffer
= buf
;
8534 win_init_empty(aucmd_win
); /* set cursor and topline to safe values */
8535 vim_free(aucmd_win
->w_localdir
);
8536 aucmd_win
->w_localdir
= NULL
;
8538 /* Make sure w_localdir and globaldir are NULL to avoid a chdir() in
8539 * win_enter_ext(). */
8540 aucmd_win
->w_localdir
= NULL
;
8541 aco
->globaldir
= globaldir
;
8546 /* Split the current window, put the aucmd_win in the upper half.
8547 * We don't want the BufEnter or WinEnter autocommands. */
8549 make_snapshot(SNAP_AUCMD_IDX
);
8552 (void)win_split_ins(0, WSP_TOP
, aucmd_win
, 0);
8553 (void)win_comp_pos(); /* recompute window positions */
8560 aco
->new_curwin
= curwin
;
8561 aco
->new_curbuf
= curbuf
;
8565 * Cleanup after executing autocommands for a (hidden) buffer.
8566 * Restore the window as it was (if possible).
8567 * When FEAT_AUTOCMD is not defined another version is used, see below.
8571 aco_save_T
*aco
; /* structure holding saved values */
8577 if (aco
->use_aucmd_win
)
8579 --curbuf
->b_nwindows
;
8581 /* Find "aucmd_win", it can't be closed, but it may be in another tab
8582 * page. Do not trigger autocommands here. */
8584 if (curwin
!= aucmd_win
)
8589 FOR_ALL_TAB_WINDOWS(tp
, wp
)
8591 if (wp
== aucmd_win
)
8594 goto_tabpage_tp(tp
);
8595 win_goto(aucmd_win
);
8601 /* Remove the window and frame from the tree of frames. */
8602 (void)winframe_remove(curwin
, &dummy
, NULL
);
8603 win_remove(curwin
, NULL
);
8604 aucmd_win_used
= FALSE
;
8605 last_status(FALSE
); /* may need to remove last status line */
8606 restore_snapshot(SNAP_AUCMD_IDX
, FALSE
);
8607 (void)win_comp_pos(); /* recompute window positions */
8610 if (win_valid(aco
->save_curwin
))
8611 curwin
= aco
->save_curwin
;
8613 /* Hmm, original window disappeared. Just use the first one. */
8616 vars_clear(&aucmd_win
->w_vars
.dv_hashtab
); /* free all w: variables */
8619 curwin
= aco
->save_curwin
;
8621 curbuf
= curwin
->w_buffer
;
8623 vim_free(globaldir
);
8624 globaldir
= aco
->globaldir
;
8626 /* the buffer contents may have changed */
8628 if (curwin
->w_topline
> curbuf
->b_ml
.ml_line_count
)
8630 curwin
->w_topline
= curbuf
->b_ml
.ml_line_count
;
8632 curwin
->w_topfill
= 0;
8635 #if defined(FEAT_GUI)
8636 /* Hide the scrollbars from the aucmd_win and update. */
8637 gui_mch_enable_scrollbar(&aucmd_win
->w_scrollbars
[SBAR_LEFT
], FALSE
);
8638 gui_mch_enable_scrollbar(&aucmd_win
->w_scrollbars
[SBAR_RIGHT
], FALSE
);
8639 gui_may_update_scrollbars();
8644 /* restore curwin */
8646 if (win_valid(aco
->save_curwin
))
8649 /* Restore the buffer which was previously edited by curwin, if
8650 * it was changed, we are still the same window and the buffer is
8652 if (curwin
== aco
->new_curwin
8653 && curbuf
!= aco
->new_curbuf
8654 && buf_valid(aco
->new_curbuf
)
8655 && aco
->new_curbuf
->b_ml
.ml_mfp
!= NULL
)
8657 --curbuf
->b_nwindows
;
8658 curbuf
= aco
->new_curbuf
;
8659 curwin
->w_buffer
= curbuf
;
8660 ++curbuf
->b_nwindows
;
8663 curwin
= aco
->save_curwin
;
8664 curbuf
= curwin
->w_buffer
;
8669 static int autocmd_nested
= FALSE
;
8672 * Execute autocommands for "event" and file name "fname".
8673 * Return TRUE if some commands were executed.
8676 apply_autocmds(event
, fname
, fname_io
, force
, buf
)
8678 char_u
*fname
; /* NULL or empty means use actual file name */
8679 char_u
*fname_io
; /* fname to use for <afile> on cmdline */
8680 int force
; /* when TRUE, ignore autocmd_busy */
8681 buf_T
*buf
; /* buffer for <abuf> */
8683 return apply_autocmds_group(event
, fname
, fname_io
, force
,
8684 AUGROUP_ALL
, buf
, NULL
);
8688 * Like apply_autocmds(), but with extra "eap" argument. This takes care of
8689 * setting v:filearg.
8692 apply_autocmds_exarg(event
, fname
, fname_io
, force
, buf
, eap
)
8700 return apply_autocmds_group(event
, fname
, fname_io
, force
,
8701 AUGROUP_ALL
, buf
, eap
);
8705 * Like apply_autocmds(), but handles the caller's retval. If the script
8706 * processing is being aborted or if retval is FAIL when inside a try
8707 * conditional, no autocommands are executed. If otherwise the autocommands
8708 * cause the script to be aborted, retval is set to FAIL.
8711 apply_autocmds_retval(event
, fname
, fname_io
, force
, buf
, retval
)
8713 char_u
*fname
; /* NULL or empty means use actual file name */
8714 char_u
*fname_io
; /* fname to use for <afile> on cmdline */
8715 int force
; /* when TRUE, ignore autocmd_busy */
8716 buf_T
*buf
; /* buffer for <abuf> */
8717 int *retval
; /* pointer to caller's retval */
8722 if (should_abort(*retval
))
8726 did_cmd
= apply_autocmds_group(event
, fname
, fname_io
, force
,
8727 AUGROUP_ALL
, buf
, NULL
);
8738 * Return TRUE when there is a CursorHold autocommand defined.
8743 return (first_autopat
[(int)(get_real_state() == NORMAL_BUSY
8744 ? EVENT_CURSORHOLD
: EVENT_CURSORHOLDI
)] != NULL
);
8748 * Return TRUE if the CursorHold event can be triggered.
8751 trigger_cursorhold()
8755 if (!did_cursorhold
&& has_cursorhold() && !Recording
8756 #ifdef FEAT_INS_EXPAND
8757 && !ins_compl_active()
8761 state
= get_real_state();
8762 if (state
== NORMAL_BUSY
|| (state
& INSERT
) != 0)
8769 * Return TRUE when there is a CursorMoved autocommand defined.
8774 return (first_autopat
[(int)EVENT_CURSORMOVED
] != NULL
);
8778 * Return TRUE when there is a CursorMovedI autocommand defined.
8783 return (first_autopat
[(int)EVENT_CURSORMOVEDI
] != NULL
);
8787 apply_autocmds_group(event
, fname
, fname_io
, force
, group
, buf
, eap
)
8789 char_u
*fname
; /* NULL or empty means use actual file name */
8790 char_u
*fname_io
; /* fname to use for <afile> on cmdline, NULL means
8792 int force
; /* when TRUE, ignore autocmd_busy */
8793 int group
; /* group ID, or AUGROUP_ALL */
8794 buf_T
*buf
; /* buffer for <abuf> */
8795 exarg_T
*eap
; /* command arguments */
8797 char_u
*sfname
= NULL
; /* short file name */
8802 char_u
*save_sourcing_name
;
8803 linenr_T save_sourcing_lnum
;
8804 char_u
*save_autocmd_fname
;
8805 int save_autocmd_fname_full
;
8806 int save_autocmd_bufnr
;
8807 char_u
*save_autocmd_match
;
8808 int save_autocmd_busy
;
8809 int save_autocmd_nested
;
8810 static int nesting
= 0;
8814 scid_T save_current_SID
;
8815 void *save_funccalp
;
8816 char_u
*save_cmdarg
;
8819 static int filechangeshell_busy
= FALSE
;
8821 proftime_T wait_time
;
8825 * Quickly return if there are no autocommands for this event or
8826 * autocommands are blocked.
8828 if (first_autopat
[(int)event
] == NULL
|| autocmd_blocked
> 0)
8832 * When autocommands are busy, new autocommands are only executed when
8833 * explicitly enabled with the "nested" flag.
8835 if (autocmd_busy
&& !(force
|| autocmd_nested
))
8840 * Quickly return when immediately aborting on error, or when an interrupt
8841 * occurred or an exception was thrown but not caught.
8848 * FileChangedShell never nests, because it can create an endless loop.
8850 if (filechangeshell_busy
&& (event
== EVENT_FILECHANGEDSHELL
8851 || event
== EVENT_FILECHANGEDSHELLPOST
))
8855 * Ignore events in 'eventignore'.
8857 if (event_ignored(event
))
8861 * Allow nesting of autocommands, but restrict the depth, because it's
8862 * possible to create an endless loop.
8866 EMSG(_("E218: autocommand nesting too deep"));
8871 * Check if these autocommands are disabled. Used when doing ":all" or
8874 if ( (autocmd_no_enter
8875 && (event
== EVENT_WINENTER
|| event
== EVENT_BUFENTER
))
8876 || (autocmd_no_leave
8877 && (event
== EVENT_WINLEAVE
|| event
== EVENT_BUFLEAVE
)))
8881 * Save the autocmd_* variables and info about the current buffer.
8883 save_autocmd_fname
= autocmd_fname
;
8884 save_autocmd_fname_full
= autocmd_fname_full
;
8885 save_autocmd_bufnr
= autocmd_bufnr
;
8886 save_autocmd_match
= autocmd_match
;
8887 save_autocmd_busy
= autocmd_busy
;
8888 save_autocmd_nested
= autocmd_nested
;
8889 save_changed
= curbuf
->b_changed
;
8890 old_curbuf
= curbuf
;
8893 * Set the file name to be used for <afile>.
8894 * Make a copy to avoid that changing a buffer name or directory makes it
8897 if (fname_io
== NULL
)
8899 if (fname
!= NULL
&& *fname
!= NUL
)
8900 autocmd_fname
= fname
;
8901 else if (buf
!= NULL
)
8902 autocmd_fname
= buf
->b_ffname
;
8904 autocmd_fname
= NULL
;
8907 autocmd_fname
= fname_io
;
8908 if (autocmd_fname
!= NULL
)
8909 autocmd_fname
= vim_strsave(autocmd_fname
);
8910 autocmd_fname_full
= FALSE
; /* call FullName_save() later */
8913 * Set the buffer number to be used for <abuf>.
8918 autocmd_bufnr
= buf
->b_fnum
;
8921 * When the file name is NULL or empty, use the file name of buffer "buf".
8922 * Always use the full path of the file name to match with, in case
8923 * "allow_dirs" is set.
8925 if (fname
== NULL
|| *fname
== NUL
)
8932 if (event
== EVENT_SYNTAX
)
8933 fname
= buf
->b_p_syn
;
8936 if (event
== EVENT_FILETYPE
)
8937 fname
= buf
->b_p_ft
;
8940 if (buf
->b_sfname
!= NULL
)
8941 sfname
= vim_strsave(buf
->b_sfname
);
8942 fname
= buf
->b_ffname
;
8946 fname
= (char_u
*)"";
8947 fname
= vim_strsave(fname
); /* make a copy, so we can change it */
8951 sfname
= vim_strsave(fname
);
8952 /* Don't try expanding FileType, Syntax, FuncUndefined, WindowID or
8954 if (event
== EVENT_FILETYPE
8955 || event
== EVENT_SYNTAX
8956 || event
== EVENT_FUNCUNDEFINED
8957 || event
== EVENT_REMOTEREPLY
8958 || event
== EVENT_SPELLFILEMISSING
8959 || event
== EVENT_QUICKFIXCMDPRE
8960 || event
== EVENT_QUICKFIXCMDPOST
)
8961 fname
= vim_strsave(fname
);
8963 fname
= FullName_save(fname
, FALSE
);
8965 if (fname
== NULL
) /* out of memory */
8972 #ifdef BACKSLASH_IN_FILENAME
8974 * Replace all backslashes with forward slashes. This makes the
8975 * autocommand patterns portable between Unix and MS-DOS.
8978 forward_slash(sfname
);
8979 forward_slash(fname
);
8983 /* remove version for correct match */
8985 vms_remove_version(sfname
);
8986 vms_remove_version(fname
);
8990 * Set the name to be used for <amatch>.
8992 autocmd_match
= fname
;
8995 /* Don't redraw while doing auto commands. */
8996 ++RedrawingDisabled
;
8997 save_sourcing_name
= sourcing_name
;
8998 sourcing_name
= NULL
; /* don't free this one */
8999 save_sourcing_lnum
= sourcing_lnum
;
9000 sourcing_lnum
= 0; /* no line number here */
9003 save_current_SID
= current_SID
;
9005 # ifdef FEAT_PROFILE
9006 if (do_profiling
== PROF_YES
)
9007 prof_child_enter(&wait_time
); /* doesn't count for the caller itself */
9010 /* Don't use local function variables, if called from a function */
9011 save_funccalp
= save_funccal();
9015 * When starting to execute autocommands, save the search patterns.
9019 save_search_patterns();
9021 did_filetype
= keep_filetype
;
9025 * Note that we are applying autocmds. Some commands need to know.
9027 autocmd_busy
= TRUE
;
9028 filechangeshell_busy
= (event
== EVENT_FILECHANGEDSHELL
);
9029 ++nesting
; /* see matching decrement below */
9031 /* Remember that FileType was triggered. Used for did_filetype(). */
9032 if (event
== EVENT_FILETYPE
)
9033 did_filetype
= TRUE
;
9035 tail
= gettail(fname
);
9037 /* Find first autocommand that matches */
9038 patcmd
.curpat
= first_autopat
[(int)event
];
9039 patcmd
.nextcmd
= NULL
;
9040 patcmd
.group
= group
;
9041 patcmd
.fname
= fname
;
9042 patcmd
.sfname
= sfname
;
9044 patcmd
.event
= event
;
9045 patcmd
.arg_bufnr
= autocmd_bufnr
;
9047 auto_next_pat(&patcmd
, FALSE
);
9049 /* found one, start executing the autocommands */
9050 if (patcmd
.curpat
!= NULL
)
9052 /* add to active_apc_list */
9053 patcmd
.next
= active_apc_list
;
9054 active_apc_list
= &patcmd
;
9057 /* set v:cmdarg (only when there is a matching pattern) */
9058 save_cmdbang
= get_vim_var_nr(VV_CMDBANG
);
9061 save_cmdarg
= set_cmdarg(eap
, NULL
);
9062 set_vim_var_nr(VV_CMDBANG
, (long)eap
->forceit
);
9065 save_cmdarg
= NULL
; /* avoid gcc warning */
9068 /* mark the last pattern, to avoid an endless loop when more patterns
9069 * are added when executing autocommands */
9070 for (ap
= patcmd
.curpat
; ap
->next
!= NULL
; ap
= ap
->next
)
9073 check_lnums(TRUE
); /* make sure cursor and topline are valid */
9074 do_cmdline(NULL
, getnextac
, (void *)&patcmd
,
9075 DOCMD_NOWAIT
|DOCMD_VERBOSE
|DOCMD_REPEAT
);
9079 (void)set_cmdarg(NULL
, save_cmdarg
);
9080 set_vim_var_nr(VV_CMDBANG
, save_cmdbang
);
9083 /* delete from active_apc_list */
9084 if (active_apc_list
== &patcmd
) /* just in case */
9085 active_apc_list
= patcmd
.next
;
9088 --RedrawingDisabled
;
9089 autocmd_busy
= save_autocmd_busy
;
9090 filechangeshell_busy
= FALSE
;
9091 autocmd_nested
= save_autocmd_nested
;
9092 vim_free(sourcing_name
);
9093 sourcing_name
= save_sourcing_name
;
9094 sourcing_lnum
= save_sourcing_lnum
;
9095 vim_free(autocmd_fname
);
9096 autocmd_fname
= save_autocmd_fname
;
9097 autocmd_fname_full
= save_autocmd_fname_full
;
9098 autocmd_bufnr
= save_autocmd_bufnr
;
9099 autocmd_match
= save_autocmd_match
;
9101 current_SID
= save_current_SID
;
9102 restore_funccal(save_funccalp
);
9103 # ifdef FEAT_PROFILE
9104 if (do_profiling
== PROF_YES
)
9105 prof_child_exit(&wait_time
);
9110 --nesting
; /* see matching increment above */
9113 * When stopping to execute autocommands, restore the search patterns and
9118 restore_search_patterns();
9120 did_filetype
= FALSE
;
9124 * Some events don't set or reset the Changed flag.
9125 * Check if still in the same buffer!
9127 if (curbuf
== old_curbuf
9128 && (event
== EVENT_BUFREADPOST
9129 || event
== EVENT_BUFWRITEPOST
9130 || event
== EVENT_FILEAPPENDPOST
9131 || event
== EVENT_VIMLEAVE
9132 || event
== EVENT_VIMLEAVEPRE
))
9135 if (curbuf
->b_changed
!= save_changed
)
9136 need_maketitle
= TRUE
;
9138 curbuf
->b_changed
= save_changed
;
9141 au_cleanup(); /* may really delete removed patterns/commands now */
9144 /* When wiping out a buffer make sure all its buffer-local autocommands
9146 if (event
== EVENT_BUFWIPEOUT
&& buf
!= NULL
)
9147 aubuflocal_remove(buf
);
9153 static char_u
*old_termresponse
= NULL
;
9157 * Block triggering autocommands until unblock_autocmd() is called.
9158 * Can be used recursively, so long as it's symmetric.
9164 /* Remember the value of v:termresponse. */
9165 if (autocmd_blocked
== 0)
9166 old_termresponse
= get_vim_var_str(VV_TERMRESPONSE
);
9177 /* When v:termresponse was set while autocommands were blocked, trigger
9178 * the autocommands now. Esp. useful when executing a shell command
9179 * during startup (vimdiff). */
9180 if (autocmd_blocked
== 0
9181 && get_vim_var_str(VV_TERMRESPONSE
) != old_termresponse
)
9182 apply_autocmds(EVENT_TERMRESPONSE
, NULL
, NULL
, FALSE
, curbuf
);
9187 * Find next autocommand pattern that matches.
9190 auto_next_pat(apc
, stop_at_last
)
9192 int stop_at_last
; /* stop when 'last' flag is set */
9199 vim_free(sourcing_name
);
9200 sourcing_name
= NULL
;
9202 for (ap
= apc
->curpat
; ap
!= NULL
&& !got_int
; ap
= ap
->next
)
9206 /* Only use a pattern when it has not been removed, has commands and
9207 * the group matches. For buffer-local autocommands only check the
9209 if (ap
->pat
!= NULL
&& ap
->cmds
!= NULL
9210 && (apc
->group
== AUGROUP_ALL
|| apc
->group
== ap
->group
))
9212 /* execution-condition */
9213 if (ap
->buflocal_nr
== 0
9214 ? (match_file_pat(NULL
, ap
->reg_prog
, apc
->fname
,
9215 apc
->sfname
, apc
->tail
, ap
->allow_dirs
))
9216 : ap
->buflocal_nr
== apc
->arg_bufnr
)
9218 name
= event_nr2name(apc
->event
);
9219 s
= _("%s Auto commands for \"%s\"");
9220 sourcing_name
= alloc((unsigned)(STRLEN(s
)
9221 + STRLEN(name
) + ap
->patlen
+ 1));
9222 if (sourcing_name
!= NULL
)
9224 sprintf((char *)sourcing_name
, s
,
9225 (char *)name
, (char *)ap
->pat
);
9229 smsg((char_u
*)_("Executing %s"), sourcing_name
);
9235 apc
->nextcmd
= ap
->cmds
;
9236 /* mark last command */
9237 for (cp
= ap
->cmds
; cp
->next
!= NULL
; cp
= cp
->next
)
9242 if (apc
->curpat
!= NULL
) /* found a match */
9245 if (stop_at_last
&& ap
->last
)
9251 * Get next autocommand command.
9252 * Called by do_cmdline() to get the next line for ":if".
9253 * Returns allocated string, or NULL for end of autocommands.
9256 getnextac(c
, cookie
, indent
)
9261 AutoPatCmd
*acp
= (AutoPatCmd
*)cookie
;
9265 /* Can be called again after returning the last line. */
9266 if (acp
->curpat
== NULL
)
9269 /* repeat until we find an autocommand to execute */
9272 /* skip removed commands */
9273 while (acp
->nextcmd
!= NULL
&& acp
->nextcmd
->cmd
== NULL
)
9274 if (acp
->nextcmd
->last
)
9275 acp
->nextcmd
= NULL
;
9277 acp
->nextcmd
= acp
->nextcmd
->next
;
9279 if (acp
->nextcmd
!= NULL
)
9282 /* at end of commands, find next pattern that matches */
9283 if (acp
->curpat
->last
)
9286 acp
->curpat
= acp
->curpat
->next
;
9287 if (acp
->curpat
!= NULL
)
9288 auto_next_pat(acp
, TRUE
);
9289 if (acp
->curpat
== NULL
)
9297 verbose_enter_scroll();
9298 smsg((char_u
*)_("autocommand %s"), ac
->cmd
);
9299 msg_puts((char_u
*)"\n"); /* don't overwrite this either */
9300 verbose_leave_scroll();
9302 retval
= vim_strsave(ac
->cmd
);
9303 autocmd_nested
= ac
->nested
;
9305 current_SID
= ac
->scriptID
;
9308 acp
->nextcmd
= NULL
;
9310 acp
->nextcmd
= ac
->next
;
9315 * Return TRUE if there is a matching autocommand for "fname".
9316 * To account for buffer-local autocommands, function needs to know
9317 * in which buffer the file will be opened.
9320 has_autocmd(event
, sfname
, buf
)
9327 char_u
*tail
= gettail(sfname
);
9330 fname
= FullName_save(sfname
, FALSE
);
9334 #ifdef BACKSLASH_IN_FILENAME
9336 * Replace all backslashes with forward slashes. This makes the
9337 * autocommand patterns portable between Unix and MS-DOS.
9339 sfname
= vim_strsave(sfname
);
9341 forward_slash(sfname
);
9342 forward_slash(fname
);
9345 for (ap
= first_autopat
[(int)event
]; ap
!= NULL
; ap
= ap
->next
)
9346 if (ap
->pat
!= NULL
&& ap
->cmds
!= NULL
9347 && (ap
->buflocal_nr
== 0
9348 ? match_file_pat(NULL
, ap
->reg_prog
,
9349 fname
, sfname
, tail
, ap
->allow_dirs
)
9350 : buf
!= NULL
&& ap
->buflocal_nr
== buf
->b_fnum
9358 #ifdef BACKSLASH_IN_FILENAME
9365 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
9367 * Function given to ExpandGeneric() to obtain the list of autocommand group
9371 get_augroup_name(xp
, idx
)
9372 expand_T
*xp UNUSED
;
9375 if (idx
== augroups
.ga_len
) /* add "END" add the end */
9376 return (char_u
*)"END";
9377 if (idx
>= augroups
.ga_len
) /* end of list */
9379 if (AUGROUP_NAME(idx
) == NULL
) /* skip deleted entries */
9380 return (char_u
*)"";
9381 return AUGROUP_NAME(idx
); /* return a name */
9384 static int include_groups
= FALSE
;
9387 set_context_in_autocmd(xp
, arg
, doautocmd
)
9390 int doautocmd
; /* TRUE for :doauto*, FALSE for :autocmd */
9395 /* check for a group name, skip it if present */
9396 include_groups
= FALSE
;
9398 group
= au_get_grouparg(&arg
);
9399 if (group
== AUGROUP_ERROR
)
9401 /* If there only is a group name that's what we expand. */
9402 if (*arg
== NUL
&& group
!= AUGROUP_ALL
&& !vim_iswhite(arg
[-1]))
9405 group
= AUGROUP_ALL
;
9408 /* skip over event name */
9409 for (p
= arg
; *p
!= NUL
&& !vim_iswhite(*p
); ++p
)
9414 if (group
== AUGROUP_ALL
)
9415 include_groups
= TRUE
;
9416 xp
->xp_context
= EXPAND_EVENTS
; /* expand event name */
9417 xp
->xp_pattern
= arg
;
9421 /* skip over pattern */
9423 while (*arg
&& (!vim_iswhite(*arg
) || arg
[-1] == '\\'))
9426 return arg
; /* expand (next) command */
9429 xp
->xp_context
= EXPAND_FILES
; /* expand file names */
9431 xp
->xp_context
= EXPAND_NOTHING
; /* pattern is not expanded */
9436 * Function given to ExpandGeneric() to obtain the list of event names.
9439 get_event_name(xp
, idx
)
9440 expand_T
*xp UNUSED
;
9443 if (idx
< augroups
.ga_len
) /* First list group names, if wanted */
9445 if (!include_groups
|| AUGROUP_NAME(idx
) == NULL
)
9446 return (char_u
*)""; /* skip deleted entries */
9447 return AUGROUP_NAME(idx
); /* return a name */
9449 return (char_u
*)event_names
[idx
- augroups
.ga_len
].name
;
9452 #endif /* FEAT_CMDL_COMPL */
9455 * Return TRUE if autocmd is supported.
9458 autocmd_supported(name
)
9463 return (event_name2nr(name
, &p
) != NUM_EVENTS
);
9467 * Return TRUE if an autocommand is defined for a group, event and
9468 * pattern: The group can be omitted to accept any group. "event" and "pattern"
9469 * can be NULL to accept any event and pattern. "pattern" can be NULL to accept
9470 * any pattern. Buffer-local patterns <buffer> or <buffer=N> are accepted.
9472 * exists("#Group") or
9473 * exists("#Group#Event") or
9474 * exists("#Group#Event#pat") or
9475 * exists("#Event") or
9476 * exists("#Event#pat")
9483 char_u
*pattern
= NULL
;
9488 buf_T
*buflocal_buf
= NULL
;
9492 /* Make a copy so that we can change the '#' chars to a NUL. */
9493 arg_save
= vim_strsave(arg
);
9494 if (arg_save
== NULL
)
9496 p
= vim_strchr(arg_save
, '#');
9500 /* First, look for an autocmd group name */
9501 group
= au_find_group(arg_save
);
9502 if (group
== AUGROUP_ERROR
)
9504 /* Didn't match a group name, assume the first argument is an event. */
9505 group
= AUGROUP_ALL
;
9506 event_name
= arg_save
;
9512 /* "Group": group name is present and it's recognized */
9517 /* Must be "Group#Event" or "Group#Event#pat". */
9519 p
= vim_strchr(event_name
, '#');
9521 *p
++ = NUL
; /* "Group#Event#pat" */
9524 pattern
= p
; /* "pattern" is NULL when there is no pattern */
9526 /* find the index (enum) for the event name */
9527 event
= event_name2nr(event_name
, &p
);
9529 /* return FALSE if the event name is not recognized */
9530 if (event
== NUM_EVENTS
)
9533 /* Find the first autocommand for this event.
9534 * If there isn't any, return FALSE;
9535 * If there is one and no pattern given, return TRUE; */
9536 ap
= first_autopat
[(int)event
];
9540 /* if pattern is "<buffer>", special handling is needed which uses curbuf */
9541 /* for pattern "<buffer=N>, fnamecmp() will work fine */
9542 if (pattern
!= NULL
&& STRICMP(pattern
, "<buffer>") == 0)
9543 buflocal_buf
= curbuf
;
9545 /* Check if there is an autocommand with the given pattern. */
9546 for ( ; ap
!= NULL
; ap
= ap
->next
)
9547 /* only use a pattern when it has not been removed and has commands. */
9548 /* For buffer-local autocommands, fnamecmp() works fine. */
9549 if (ap
->pat
!= NULL
&& ap
->cmds
!= NULL
9550 && (group
== AUGROUP_ALL
|| ap
->group
== group
)
9552 || (buflocal_buf
== NULL
9553 ? fnamecmp(ap
->pat
, pattern
) == 0
9554 : ap
->buflocal_nr
== buflocal_buf
->b_fnum
)))
9565 #else /* FEAT_AUTOCMD */
9568 * Prepare for executing commands for (hidden) buffer "buf".
9569 * This is the non-autocommand version, it simply saves "curbuf" and sets
9570 * "curbuf" and "curwin" to match "buf".
9573 aucmd_prepbuf(aco
, buf
)
9574 aco_save_T
*aco
; /* structure to save values in */
9575 buf_T
*buf
; /* new curbuf */
9577 aco
->save_curbuf
= curbuf
;
9578 --curbuf
->b_nwindows
;
9580 curwin
->w_buffer
= buf
;
9581 ++curbuf
->b_nwindows
;
9585 * Restore after executing commands for a (hidden) buffer.
9586 * This is the non-autocommand version.
9590 aco_save_T
*aco
; /* structure holding saved values */
9592 --curbuf
->b_nwindows
;
9593 curbuf
= aco
->save_curbuf
;
9594 curwin
->w_buffer
= curbuf
;
9595 ++curbuf
->b_nwindows
;
9598 #endif /* FEAT_AUTOCMD */
9601 #if defined(FEAT_AUTOCMD) || defined(FEAT_WILDIGN) || defined(PROTO)
9603 * Try matching a filename with a "pattern" ("prog" is NULL), or use the
9604 * precompiled regprog "prog" ("pattern" is NULL). That avoids calling
9605 * vim_regcomp() often.
9606 * Used for autocommands and 'wildignore'.
9607 * Returns TRUE if there is a match, FALSE otherwise.
9610 match_file_pat(pattern
, prog
, fname
, sfname
, tail
, allow_dirs
)
9611 char_u
*pattern
; /* pattern to match with */
9612 regprog_T
*prog
; /* pre-compiled regprog or NULL */
9613 char_u
*fname
; /* full path of file name */
9614 char_u
*sfname
; /* short file name or NULL */
9615 char_u
*tail
; /* tail of path */
9616 int allow_dirs
; /* allow matching with dir */
9618 regmatch_T regmatch
;
9620 #ifdef FEAT_OSFILETYPE
9621 int no_pattern
= FALSE
; /* TRUE if check is filetype only */
9627 #ifdef CASE_INSENSITIVE_FILENAME
9628 regmatch
.rm_ic
= TRUE
; /* Always ignore case */
9630 regmatch
.rm_ic
= FALSE
; /* Don't ever ignore case */
9632 #ifdef FEAT_OSFILETYPE
9633 if (*pattern
== '<')
9635 /* There is a filetype condition specified with this pattern.
9636 * Check the filetype matches first. If not, don't bother with the
9637 * pattern (set regprog to NULL).
9638 * Always use magic for the regexp.
9641 for (type_start
= pattern
+ 1; (c
= *pattern
); pattern
++)
9643 if ((c
== ';' || c
== '>') && match
== FALSE
)
9645 *pattern
= NUL
; /* Terminate the string */
9646 match
= mch_check_filetype(fname
, type_start
);
9647 *pattern
= c
; /* Restore the terminator */
9648 type_start
= pattern
+ 1;
9654 /* (c should never be NUL, but check anyway) */
9655 if (match
== FALSE
|| c
== NUL
)
9656 regmatch
.regprog
= NULL
; /* Doesn't match - don't check pat. */
9657 else if (*pattern
== NUL
)
9659 regmatch
.regprog
= NULL
; /* Vim will try to free regprog later */
9660 no_pattern
= TRUE
; /* Always matches - don't check pat. */
9663 regmatch
.regprog
= vim_regcomp(pattern
+ 1, RE_MAGIC
);
9669 regmatch
.regprog
= prog
;
9671 regmatch
.regprog
= vim_regcomp(pattern
, RE_MAGIC
);
9675 * Try for a match with the pattern with:
9676 * 1. the full file name, when the pattern has a '/'.
9677 * 2. the short file name, when the pattern has a '/'.
9678 * 3. the tail of the file name, when the pattern has no '/'.
9681 #ifdef FEAT_OSFILETYPE
9682 /* If the check is for a filetype only and we don't care
9683 * about the path then skip all the regexp stuff.
9687 (regmatch
.regprog
!= NULL
9689 && (vim_regexec(®match
, fname
, (colnr_T
)0)
9691 && vim_regexec(®match
, sfname
, (colnr_T
)0))))
9692 || (!allow_dirs
&& vim_regexec(®match
, tail
, (colnr_T
)0)))))
9696 vim_free(regmatch
.regprog
);
9701 #if defined(FEAT_WILDIGN) || defined(PROTO)
9703 * Return TRUE if a file matches with a pattern in "list".
9704 * "list" is a comma-separated list of patterns, like 'wildignore'.
9705 * "sfname" is the short file name or NULL, "ffname" the long file name.
9708 match_file_list(list
, sfname
, ffname
)
9720 tail
= gettail(sfname
);
9722 /* try all patterns in 'wildignore' */
9726 copy_option_part(&p
, buf
, 100, ",");
9727 regpat
= file_pat_to_reg_pat(buf
, NULL
, &allow_dirs
, FALSE
);
9730 match
= match_file_pat(regpat
, NULL
, ffname
, sfname
,
9731 tail
, (int)allow_dirs
);
9741 * Convert the given pattern "pat" which has shell style wildcards in it, into
9742 * a regular expression, and return the result in allocated memory. If there
9743 * is a directory path separator to be matched, then TRUE is put in
9744 * allow_dirs, otherwise FALSE is put there -- webb.
9745 * Handle backslashes before special characters, like "\*" and "\ ".
9747 * If FEAT_OSFILETYPE defined then pass initial <type> through unchanged. Eg:
9748 * '<html>myfile' becomes '<html>^myfile$' -- leonard.
9750 * Returns NULL when out of memory.
9753 file_pat_to_reg_pat(pat
, pat_end
, allow_dirs
, no_bslash
)
9755 char_u
*pat_end
; /* first char after pattern or NULL */
9756 char *allow_dirs
; /* Result passed back out in here */
9757 int no_bslash UNUSED
; /* Don't use a backward slash as pathsep */
9765 int add_dollar
= TRUE
;
9766 #ifdef FEAT_OSFILETYPE
9767 int check_length
= 0;
9770 if (allow_dirs
!= NULL
)
9771 *allow_dirs
= FALSE
;
9772 if (pat_end
== NULL
)
9773 pat_end
= pat
+ STRLEN(pat
);
9775 #ifdef FEAT_OSFILETYPE
9776 /* Find out how much of the string is the filetype check */
9779 /* Count chars until the next '>' */
9780 for (p
= pat
+ 1; p
< pat_end
&& *p
!= '>'; p
++)
9784 /* Pattern is of the form <.*>.* */
9785 check_length
= p
- pat
+ 1;
9786 if (p
+ 1 >= pat_end
)
9788 /* The 'pattern' is a filetype check ONLY */
9789 reg_pat
= (char_u
*)alloc(check_length
+ 1);
9790 if (reg_pat
!= NULL
)
9792 mch_memmove(reg_pat
, pat
, (size_t)check_length
);
9793 reg_pat
[check_length
] = NUL
;
9798 /* else: there was no closing '>' - assume it was a normal pattern */
9801 pat
+= check_length
;
9802 size
= 2 + check_length
;
9804 size
= 2; /* '^' at start, '$' at end */
9807 for (p
= pat
; p
< pat_end
; p
++)
9817 size
+= 2; /* extra backslash */
9819 #ifdef BACKSLASH_IN_FILENAME
9822 size
+= 4; /* could become "[\/]" */
9828 if (enc_dbcs
!= 0 && (*mb_ptr2len
)(p
) > 1)
9837 reg_pat
= alloc(size
+ 1);
9838 if (reg_pat
== NULL
)
9841 #ifdef FEAT_OSFILETYPE
9842 /* Copy the type check in to the start. */
9844 mch_memmove(reg_pat
, pat
- check_length
, (size_t)check_length
);
9851 while (pat
[0] == '*' && pat
< pat_end
- 1)
9858 while (endp
- pat
> 0 && *endp
== '*')
9862 for (p
= pat
; *p
&& nested
>= 0 && p
<= endp
; p
++)
9869 while (p
[1] == '*') /* "**" matches like "*" */
9874 if (allow_dirs
!= NULL
)
9879 reg_pat
[i
++] = '\\';
9891 #ifdef BACKSLASH_IN_FILENAME
9895 * "\x" to "\\x" e.g., "dir\file"
9896 * "\*" to "\\.*" e.g., "dir\*.c"
9897 * "\?" to "\\." e.g., "dir\??.c"
9898 * "\+" to "\+" e.g., "fileX\+.c"
9900 if ((vim_isfilec(p
[1]) || p
[1] == '*' || p
[1] == '?')
9904 reg_pat
[i
++] = '\\';
9907 if (allow_dirs
!= NULL
)
9914 #ifdef BACKSLASH_IN_FILENAME
9924 if (allow_dirs
!= NULL
&& vim_ispathsep(*p
)
9925 #ifdef BACKSLASH_IN_FILENAME
9926 && (!no_bslash
|| *p
!= '\\')
9930 reg_pat
[i
++] = '\\';
9934 #ifdef BACKSLASH_IN_FILENAME
9937 reg_pat
[i
++] = '\\';
9940 if (allow_dirs
!= NULL
)
9945 reg_pat
[i
++] = '\\';
9950 reg_pat
[i
++] = '\\';
9957 reg_pat
[i
++] = '\\';
9965 if (enc_dbcs
!= 0 && (*mb_ptr2len
)(p
) > 1)
9966 reg_pat
[i
++] = *p
++;
9969 if (allow_dirs
!= NULL
&& vim_ispathsep(*p
))
9981 EMSG(_("E219: Missing {."));
9983 EMSG(_("E220: Missing }."));