fileio.c
资源名称:vim53src.zip [点击查看]
上传用户:gddssl
上传日期:2007-01-06
资源大小:1003k
文件大小:110k
源码类别:
编辑器/阅读器
开发平台:
DOS
- /* vi:set ts=8 sts=4 sw=4:
- *
- * VIM - Vi IMproved by Bram Moolenaar
- *
- * Do ":help uganda" in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- */
- /*
- * fileio.c: read from and write to a file
- */
- #if defined(MSDOS) || defined(WIN32)
- # include <io.h> /* for lseek(), must be before vim.h */
- #endif
- #if defined __EMX__
- # include <io.h> /* for mktemp(), CJW 1997-12-03 */
- #endif
- #include "vim.h"
- #ifdef HAVE_FCNTL_H
- # include <fcntl.h>
- #endif
- #ifdef LATTICE
- # include <proto/dos.h> /* for Lock() and UnLock() */
- #endif
- #define BUFSIZE 8192 /* size of normal write buffer */
- #define SMBUFSIZE 256 /* size of emergency write buffer */
- #ifdef VIMINFO
- static void check_marks_read __ARGS((void));
- #endif
- #ifdef UNIX
- static void set_file_time __ARGS((char_u *fname, time_t atime, time_t mtime));
- #endif
- static void msg_add_fname __ARGS((BUF *, char_u *));
- static int msg_add_fileformat __ARGS((int eol_type));
- static void msg_add_lines __ARGS((int, long, long));
- static void msg_add_eol __ARGS((void));
- static int check_mtime __ARGS((BUF *buf, struct stat *s));
- static int write_buf __ARGS((int, char_u *, int));
- static linenr_t write_no_eol_lnum = 0; /* non-zero lnum when last line of
- next binary write should not have
- an end-of-line */
- void
- filemess(buf, name, s, attr)
- BUF *buf;
- char_u *name;
- char_u *s;
- int attr;
- {
- int msg_scroll_save;
- msg_add_fname(buf, name); /* put file name in IObuff with quotes */
- STRCAT(IObuff, s);
- /*
- * For the first message may have to start a new line.
- * For further ones overwrite the previous one, reset msg_scroll before
- * calling filemess().
- */
- msg_scroll_save = msg_scroll;
- if (shortmess(SHM_OVERALL))
- msg_scroll = FALSE;
- msg_start();
- msg_scroll = msg_scroll_save;
- msg_outtrans_attr(IObuff, attr);
- msg_clr_eos();
- out_flush();
- }
- /*
- * Read lines from file 'fname' into the buffer after line 'from'.
- *
- * 1. We allocate blocks with lalloc, as big as possible.
- * 2. Each block is filled with characters from the file with a single read().
- * 3. The lines are inserted in the buffer with ml_append().
- *
- * (caller must check that fname != NULL, unless READ_STDIN is used)
- *
- * lines_to_skip is the number of lines that must be skipped
- * lines_to_read is the number of lines that are appended
- * When not recovering lines_to_skip is 0 and lines_to_read MAXLNUM.
- *
- * flags:
- * READ_NEW starting to edit a new buffer
- * READ_FILTER reading filter output
- * READ_STDIN read from stdin instead of a file
- *
- * return FAIL for failure, OK otherwise
- */
- int
- readfile(fname, sfname, from, lines_to_skip, lines_to_read, flags)
- char_u *fname;
- char_u *sfname;
- linenr_t from;
- linenr_t lines_to_skip;
- linenr_t lines_to_read;
- int flags;
- {
- int fd;
- int newfile = (flags & READ_NEW);
- int check_readonly;
- int filtering = (flags & READ_FILTER);
- int read_stdin = (flags & READ_STDIN);
- char_u c;
- linenr_t lnum = from;
- char_u *ptr = NULL; /* pointer into read buffer */
- char_u *buffer = NULL; /* read buffer */
- char_u *new_buffer = NULL; /* init to shut up gcc */
- char_u *line_start = NULL; /* init to shut up gcc */
- int wasempty; /* buffer was empty before reading */
- colnr_t len;
- long size;
- char_u *p;
- long filesize;
- int split = 0; /* number of split lines */
- #define UNKNOWN 0x0fffffff /* file size is unknown */
- linenr_t linecnt;
- int error = FALSE; /* errors encountered */
- int ff_error = EOL_UNKNOWN; /* file format with errors */
- long linerest; /* remaining chars in line */
- int perm = 0;
- int fileformat; /* end-of-line format */
- struct stat st;
- int file_readonly;
- linenr_t skip_count;
- linenr_t read_count;
- int msg_save = msg_scroll;
- linenr_t read_no_eol_lnum = 0; /* non-zero lnum when last line of
- * last read was missing the eol */
- int try_mac = (vim_strchr(p_ffs, 'm') != NULL);
- int try_dos = (vim_strchr(p_ffs, 'd') != NULL);
- int try_unix = (vim_strchr(p_ffs, 'x') != NULL);
- #ifdef AUTOCMD
- write_no_eol_lnum = 0; /* in case it was set by the previous read */
- #endif
- /*
- * If there is no file name yet, use the one for the read file.
- * b_notedited is set to reflect this.
- * Don't do this for a read from a filter.
- * Only do this when 'cpoptions' contains the 'f' flag.
- */
- if (curbuf->b_ffname == NULL && !filtering && !read_stdin &&
- vim_strchr(p_cpo, CPO_FNAMER) != NULL)
- {
- if (setfname(fname, sfname, FALSE) == OK)
- curbuf->b_notedited = TRUE;
- }
- if (shortmess(SHM_OVER) || curbuf->b_help)
- msg_scroll = FALSE; /* overwrite previous file message */
- else
- msg_scroll = TRUE; /* don't overwrite previous file message */
- if (sfname == NULL)
- sfname = fname;
- /*
- * For Unix: Use the short file name whenever possible.
- * Avoids problems with networks and when directory names are changed.
- * Don't do this for MS-DOS, a "cd" in a sub-shell may have moved us to
- * another directory, which we don't detect.
- */
- #if defined(UNIX) || defined(__EMX__)
- fname = sfname;
- #endif
- /* set default 'fileformat' */
- if (newfile && *p_ffs)
- set_fileformat(default_fileformat());
- #ifdef UNIX
- /*
- * On Unix it is possible to read a directory, so we have to
- * check for it before the open().
- */
- if (!read_stdin)
- {
- perm = mch_getperm(fname);
- if (perm >= 0 && !S_ISREG(perm) /* not a regular file ... */
- # ifdef S_ISFIFO
- && !S_ISFIFO(perm) /* ... or fifo */
- # endif
- # ifdef S_ISSOCK
- && !S_ISSOCK(perm) /* ... or socket */
- # endif
- )
- {
- if (S_ISDIR(perm))
- filemess(curbuf, fname, (char_u *)"is a directory", 0);
- else
- filemess(curbuf, fname, (char_u *)"is not a file", 0);
- msg_end();
- msg_scroll = msg_save;
- return FAIL;
- }
- }
- #endif
- /*
- * When opening a new file we take the readonly flag from the file.
- * Default is r/w, can be set to r/o below.
- * Don't reset it when in readonly mode
- * Only set/reset b_p_ro when BF_CHECK_RO is set.
- */
- check_readonly = (newfile && (curbuf->b_flags & BF_CHECK_RO));
- if (check_readonly && !readonlymode) /* default: set file not readonly */
- curbuf->b_p_ro = FALSE;
- if (newfile && !read_stdin)
- {
- /* Remember time of file.
- * For RISCOS, also remember the filetype.
- */
- if (stat((char *)fname, &st) >= 0)
- {
- curbuf->b_mtime = st.st_mtime;
- curbuf->b_mtime_read = st.st_mtime;
- #if defined(RISCOS) && defined(WANT_FILETYPE)
- /* Read the filetype into the buffer local filetype option. */
- ro_read_filetype(fname);
- #endif
- #ifdef UNIX
- /*
- * Set the protection bits of the swap file equal to the original
- * file. This makes it possible for others to read the name of the
- * original file from the swapfile.
- */
- if (curbuf->b_ml.ml_mfp->mf_fname != NULL)
- (void)mch_setperm(curbuf->b_ml.ml_mfp->mf_fname,
- (long)((st.st_mode & 0777) | 0600));
- #endif
- }
- else
- {
- curbuf->b_mtime = 0;
- curbuf->b_mtime_read = 0;
- }
- }
- /*
- * for UNIX: check readonly with perm and access()
- * for RISCOS: same as Unix, otherwise file gets re-datestamped!
- * for MSDOS and Amiga: check readonly by trying to open the file for writing
- */
- file_readonly = FALSE;
- if (read_stdin)
- fd = 0;
- else
- {
- #if defined(UNIX) || defined(DJGPP) || defined(__EMX__) || defined(VMS) || defined(RISCOS)
- if (
- # ifdef UNIX
- !(perm & 0222) ||
- # endif
- access((char *)fname, W_OK))
- file_readonly = TRUE;
- fd = open((char *)fname, O_RDONLY | O_EXTRA
- #ifndef macintosh
- , 0
- #endif
- );
- #else
- if (!newfile || readonlymode || (fd =
- open((char *)fname, O_RDWR | O_EXTRA
- #ifndef macintosh
- , 0 /* mode (avoid UMR) */
- #endif
- )) < 0)
- {
- file_readonly = TRUE;
- fd = open((char *)fname, O_RDONLY | O_EXTRA
- #ifndef macintosh
- , 0 /* mode (avoid UMR) */
- #endif
- ); /* try to open ro */
- }
- #endif
- }
- if (fd < 0) /* cannot open at all */
- {
- #ifndef UNIX
- int isdir_f;
- #endif
- msg_scroll = msg_save;
- #ifndef UNIX
- /*
- * On MSDOS and Amiga we can't open a directory, check here.
- */
- isdir_f = (mch_isdir(fname));
- perm = mch_getperm(fname); /* check if the file exists */
- fname = sfname; /* use short name now, for the messages */
- if (isdir_f)
- filemess(curbuf, fname, (char_u *)"is a directory", 0);
- else
- #endif
- if (newfile)
- {
- if (perm < 0)
- {
- check_need_swap(newfile); /* may create swap file now */
- filemess(curbuf, fname, (char_u *)"[New File]", 0);
- #ifdef AUTOCMD
- apply_autocmds(EVENT_BUFNEWFILE, fname, fname, FALSE,
- curbuf);
- #endif
- /* remember the current file format */
- curbuf->b_start_ffc = *curbuf->b_p_ff;
- return OK; /* a new file is not an error */
- }
- else
- filemess(curbuf, fname, (char_u *)"[Permission Denied]", 0);
- }
- return FAIL;
- }
- /*
- * Only set the 'ro' flag for readonly files the first time they are
- * loaded. Help files always get readonly mode
- */
- if ((check_readonly && file_readonly) || curbuf->b_help)
- curbuf->b_p_ro = TRUE;
- if (newfile)
- curbuf->b_p_eol = TRUE;
- check_need_swap(newfile); /* may create swap file now */
- #ifndef UNIX
- fname = sfname; /* replace with short name now, for the messages */
- #endif
- ++no_wait_return; /* don't wait for return yet */
- /*
- * Set '[ mark to the line above where the lines go (line 1 if zero).
- */
- curbuf->b_op_start.lnum = ((from == 0) ? 1 : from);
- curbuf->b_op_start.col = 0;
- #ifdef AUTOCMD
- {
- int m = msg_scroll;
- int n = msg_scrolled;
- BUF *old_curbuf = curbuf;
- /*
- * The file must be closed again, the autocommands may want to change
- * the file before reading it.
- */
- if (!read_stdin)
- close(fd); /* ignore errors */
- /*
- * The output from the autocommands should not overwrite anything and
- * should not be overwritten: Set msg_scroll, restore its value if no
- * output was done.
- */
- msg_scroll = TRUE;
- if (filtering)
- apply_autocmds(EVENT_FILTERREADPRE, NULL, fname, FALSE, curbuf);
- else if (read_stdin)
- apply_autocmds(EVENT_STDINREADPRE, NULL, fname, FALSE, curbuf);
- else if (newfile)
- apply_autocmds(EVENT_BUFREADPRE, NULL, fname, FALSE, curbuf);
- else
- apply_autocmds(EVENT_FILEREADPRE, fname, fname, FALSE, NULL);
- if (msg_scrolled == n)
- msg_scroll = m;
- /*
- * Don't allow the autocommands to change the current buffer.
- * Try to re-open the file.
- */
- if (!read_stdin && (curbuf != old_curbuf ||
- (fd = open((char *)fname, O_RDONLY | O_EXTRA
- #ifndef macintosh
- , 0 /* mode (avoid UMR) */
- #endif
- )) < 0))
- {
- --no_wait_return;
- msg_scroll = msg_save;
- if (fd < 0)
- EMSG("*ReadPre autocommands made the file unreadable");
- else
- EMSG("*ReadPre autocommands must not change current buffer");
- return FAIL;
- }
- }
- #endif
- /* Autocommands may add lines to the file, need to check if it is empty */
- wasempty = (curbuf->b_ml.ml_flags & ML_EMPTY);
- if (!recoverymode && !filtering && !read_stdin)
- filemess(curbuf, fname, (char_u *)"", 0); /* show that we are busy */
- msg_scroll = FALSE; /* overwrite the file message */
- /*
- * Set fileformat and linecnt now, before the "retry" caused by a wrong
- * guess for fileformat, and after the autocommands, which may change
- * them.
- */
- if (curbuf->b_p_bin)
- fileformat = EOL_UNIX; /* binary: use Unix format */
- else if (*p_ffs == NUL)
- fileformat = get_fileformat(curbuf); /* use format from buffer */
- else
- fileformat = EOL_UNKNOWN; /* detect from file */
- linecnt = curbuf->b_ml.ml_line_count;
- retry:
- linerest = 0;
- filesize = 0;
- skip_count = lines_to_skip;
- read_count = lines_to_read;
- while (!error && !got_int)
- {
- /*
- * We allocate as much space for the file as we can get, plus
- * space for the old line plus room for one terminating NUL.
- * The amount is limited by the fact that read() only can read
- * upto max_unsigned characters (and other things).
- */
- #if SIZEOF_INT <= 2
- if (linerest >= 0x7ff0)
- {
- ++split;
- *ptr = NL; /* split line by inserting a NL */
- size = 1;
- }
- else
- #endif
- {
- #if SIZEOF_INT > 2
- size = 0x10000L; /* use buffer >= 64K */
- #else
- size = 0x7ff0L - linerest; /* limit buffer to 32K */
- #endif
- for ( ; size >= 10; size = (long_u)size >> 1)
- {
- if ((new_buffer = lalloc((long_u)(size + linerest + 1),
- FALSE)) != NULL)
- break;
- }
- if (new_buffer == NULL)
- {
- do_outofmem_msg();
- error = TRUE;
- break;
- }
- if (linerest) /* copy characters from the previous buffer */
- mch_memmove(new_buffer, ptr - linerest, (size_t)linerest);
- vim_free(buffer);
- buffer = new_buffer;
- ptr = buffer + linerest;
- line_start = buffer;
- if ((size = read(fd, (char *)ptr, (size_t)size)) <= 0)
- {
- if (size < 0) /* read error */
- error = TRUE;
- break;
- }
- filesize += size; /* count the number of characters */
- /*
- * when reading the first part of a file: guess EOL type
- */
- if (fileformat == EOL_UNKNOWN)
- {
- /* First try finding a NL, for Dos and Unix */
- if (try_dos || try_unix)
- {
- for (p = ptr; p < ptr + size; ++p)
- if (*p == NL)
- {
- if (!try_unix
- || (try_dos && p > ptr && p[-1] == CR))
- fileformat = EOL_DOS;
- else
- fileformat = EOL_UNIX;
- break;
- }
- }
- /* No NL found: may use Mac format */
- if (fileformat == EOL_UNKNOWN && try_mac)
- fileformat = EOL_MAC;
- /* Still nothing found? Use first format in 'ffs' */
- if (fileformat == EOL_UNKNOWN)
- fileformat = default_fileformat();
- /* if editing a new file: may set p_tx and p_ff */
- if (newfile)
- set_fileformat(fileformat);
- }
- }
- /*
- * This loop is executed once for every character read.
- * Keep it fast!
- */
- if (fileformat == EOL_MAC)
- {
- --ptr;
- while (++ptr, --size >= 0)
- {
- /* catch most common case first */
- if ((c = *ptr) != NUL && c != CR && c != NL)
- continue;
- if (c == NUL)
- *ptr = NL; /* NULs are replaced by newlines! */
- else
- {
- if (skip_count == 0)
- {
- if (c == NL)
- {
- /*
- * Reading in Mac format, but a NL found!
- * When 'fileformats' includes "unix" or "dos",
- * delete all the lines read so far and start all
- * over again. Otherwise give an error message
- * later.
- */
- if (ff_error == EOL_UNKNOWN)
- {
- if ((try_dos || try_unix)
- && !read_stdin
- && lseek(fd, (off_t)0L, SEEK_SET) == 0)
- {
- while (lnum > from)
- ml_delete(lnum--, FALSE);
- if (!try_unix || ptr[-1] == NUL)
- fileformat = EOL_DOS;
- else
- fileformat = EOL_UNIX;
- if (newfile)
- set_fileformat(fileformat);
- goto retry;
- }
- else
- ff_error = EOL_MAC;
- }
- }
- *ptr = NUL; /* end of line */
- len = ptr - line_start + 1;
- if (ml_append(lnum, line_start, len, newfile) == FAIL)
- {
- error = TRUE;
- break;
- }
- ++lnum;
- if (--read_count == 0)
- {
- error = TRUE; /* break loop */
- line_start = ptr; /* nothing left to write */
- break;
- }
- }
- else
- --skip_count;
- line_start = ptr + 1;
- }
- }
- }
- else
- {
- --ptr;
- while (++ptr, --size >= 0)
- {
- if ((c = *ptr) != NUL && c != NL) /* catch most common case */
- continue;
- if (c == NUL)
- *ptr = NL; /* NULs are replaced by newlines! */
- else
- {
- if (skip_count == 0)
- {
- *ptr = NUL; /* end of line */
- len = ptr - line_start + 1;
- if (fileformat == EOL_DOS)
- {
- if (ptr[-1] == CR) /* remove CR */
- {
- ptr[-1] = NUL;
- --len;
- }
- /*
- * Reading in Dos format, but no CR-LF found!
- * When 'fileformats' includes "unix", delete all
- * the lines read so far and start all over again.
- * Otherwise give an error message later.
- */
- else if (ff_error != EOL_DOS)
- {
- if ( try_unix
- && !read_stdin
- && lseek(fd, (off_t)0L, SEEK_SET) == 0)
- {
- while (lnum > from)
- ml_delete(lnum--, FALSE);
- fileformat = EOL_UNIX;
- if (newfile)
- set_fileformat(EOL_UNIX);
- goto retry;
- }
- else
- ff_error = EOL_DOS;
- }
- }
- if (ml_append(lnum, line_start, len, newfile) == FAIL)
- {
- error = TRUE;
- break;
- }
- ++lnum;
- if (--read_count == 0)
- {
- error = TRUE; /* break loop */
- line_start = ptr; /* nothing left to write */
- break;
- }
- }
- else
- --skip_count;
- line_start = ptr + 1;
- }
- }
- }
- linerest = ptr - line_start;
- ui_breakcheck();
- }
- /* not an error, max. number of lines reached */
- if (error && read_count == 0)
- error = FALSE;
- /*
- * If we get EOF in the middle of a line, note the fact and
- * complete the line ourselves.
- * In Dos format ignore a trailing CTRL-Z, unless 'binary' set.
- */
- if (!error && !got_int && linerest != 0 &&
- !(!curbuf->b_p_bin && fileformat == EOL_DOS &&
- *line_start == Ctrl('Z') && ptr == line_start + 1))
- {
- if (newfile) /* remember for when writing */
- curbuf->b_p_eol = FALSE;
- *ptr = NUL;
- if (ml_append(lnum, line_start,
- (colnr_t)(ptr - line_start + 1), newfile) == FAIL)
- error = TRUE;
- else
- read_no_eol_lnum = ++lnum;
- }
- if (lnum != from && !newfile) /* added at least one line */
- changed();
- invalidate_botline(); /* need to recompute w_botline */
- changed_line_abv_curs(); /* need to recompute cursor posn */
- if (newfile)
- curbuf->b_start_ffc = *curbuf->b_p_ff; /* remember 'fileformat' */
- close(fd); /* errors are ignored */
- vim_free(buffer);
- --no_wait_return; /* may wait for return now */
- /*
- * In recovery mode everything but autocommands are skipped.
- */
- if (!recoverymode)
- {
- /* need to delete the last line, which comes from the empty buffer */
- if (newfile && wasempty && !(curbuf->b_ml.ml_flags & ML_EMPTY))
- {
- ml_delete(curbuf->b_ml.ml_line_count, FALSE);
- --linecnt;
- }
- linecnt = curbuf->b_ml.ml_line_count - linecnt;
- if (filesize == 0)
- linecnt = 0;
- if (!newfile)
- mark_adjust(from + 1, (linenr_t)MAXLNUM, (long)linecnt, 0L);
- /*
- * If we were reading from the same terminal as where messages go,
- * the screen will have been messed up.
- * Switch on raw mode now and clear the screen.
- */
- if (read_stdin)
- {
- settmode(TMODE_RAW); /* set to raw mode */
- starttermcap();
- screenclear();
- }
- if (got_int)
- {
- filemess(curbuf, fname, e_interr, 0);
- msg_scroll = msg_save;
- #ifdef VIMINFO
- check_marks_read();
- #endif
- return OK; /* an interrupt isn't really an error */
- }
- if (!filtering)
- {
- msg_add_fname(curbuf, fname); /* fname in IObuff with quotes */
- c = FALSE;
- #ifdef UNIX
- # ifdef S_ISFIFO
- if (S_ISFIFO(perm)) /* fifo or socket */
- {
- STRCAT(IObuff, "[fifo/socket]");
- c = TRUE;
- }
- # else
- # ifdef S_IFIFO
- if ((perm & S_IFMT) == S_IFIFO) /* fifo */
- {
- STRCAT(IObuff, "[fifo]");
- c = TRUE;
- }
- # endif
- # ifdef S_IFSOCK
- if ((perm & S_IFMT) == S_IFSOCK) /* or socket */
- {
- STRCAT(IObuff, "[socket]");
- c = TRUE;
- }
- # endif
- # endif
- #endif
- if (curbuf->b_p_ro)
- {
- STRCAT(IObuff, shortmess(SHM_RO) ? "[RO]" : "[readonly]");
- c = TRUE;
- }
- if (read_no_eol_lnum)
- {
- msg_add_eol();
- c = TRUE;
- }
- if (ff_error == EOL_DOS)
- {
- STRCAT(IObuff, "[CR missing]");
- c = TRUE;
- }
- if (ff_error == EOL_MAC)
- {
- STRCAT(IObuff, "[NL found]");
- c = TRUE;
- }
- if (split)
- {
- STRCAT(IObuff, "[long lines split]");
- c = TRUE;
- }
- if (error)
- {
- STRCAT(IObuff, "[READ ERRORS]");
- c = TRUE;
- }
- if (msg_add_fileformat(fileformat))
- c = TRUE;
- msg_add_lines(c, (long)linecnt, filesize);
- msg_trunc_attr(IObuff, FALSE, 0);
- }
- if (error && newfile) /* with errors we should not write the file */
- curbuf->b_p_ro = TRUE;
- u_clearline(); /* cannot use "U" command after adding lines */
- /*
- * In Ex mode: cursor at last new line.
- * Otherwise: cursor at first new line.
- */
- if (exmode_active)
- curwin->w_cursor.lnum = from + linecnt;
- else
- curwin->w_cursor.lnum = from + 1;
- check_cursor_lnum();
- beginline(BL_WHITE | BL_FIX); /* on first non-blank */
- /*
- * Set '[ and '] marks to the newly read lines.
- */
- curbuf->b_op_start.lnum = from + 1;
- curbuf->b_op_start.col = 0;
- curbuf->b_op_end.lnum = from + linecnt;
- curbuf->b_op_end.col = 0;
- }
- msg_scroll = msg_save;
- #ifdef VIMINFO
- /*
- * Get the marks before executing autocommands, so they can be used there.
- */
- check_marks_read();
- #endif
- #ifdef AUTOCMD
- {
- int m = msg_scroll;
- int n = msg_scrolled;
- /*
- * Trick: We remember if the last line of the read didn't have
- * an eol for when writing it again. This is required for
- * ":autocmd FileReadPost *.gz set bin|'[,']!gunzip" to work.
- */
- write_no_eol_lnum = read_no_eol_lnum;
- /*
- * The output from the autocommands should not overwrite anything and
- * should not be overwritten: Set msg_scroll, restore its value if no
- * output was done.
- */
- msg_scroll = TRUE;
- if (filtering)
- apply_autocmds(EVENT_FILTERREADPOST, NULL, fname, FALSE, curbuf);
- else if (read_stdin)
- apply_autocmds(EVENT_STDINREADPOST, NULL, fname, FALSE, curbuf);
- else if (newfile)
- apply_autocmds(EVENT_BUFREADPOST, NULL, fname, FALSE, curbuf);
- else
- apply_autocmds(EVENT_FILEREADPOST, fname, fname, FALSE, NULL);
- if (msg_scrolled == n)
- msg_scroll = m;
- }
- #endif
- if (recoverymode && error)
- return FAIL;
- return OK;
- }
- #ifdef VIMINFO
- static void
- check_marks_read()
- {
- if (!curbuf->b_marks_read && get_viminfo_parameter(''') > 0)
- {
- read_viminfo(NULL, FALSE, TRUE, FALSE);
- curbuf->b_marks_read = TRUE;
- }
- }
- #endif
- #ifdef UNIX
- static void
- set_file_time(fname, atime, mtime)
- char_u *fname;
- time_t atime; /* access time */
- time_t mtime; /* modification time */
- {
- # if defined(HAVE_UTIME) && defined(HAVE_UTIME_H)
- # include <utime.h>
- struct utimbuf buf;
- buf.actime = atime;
- buf.modtime = mtime;
- (void)utime((char *)fname, &buf);
- # else
- # if defined(HAVE_UTIMES)
- struct timeval tvp[2];
- tvp[0].tv_sec = atime;
- tvp[0].tv_usec = 0;
- tvp[1].tv_sec = mtime;
- tvp[1].tv_usec = 0;
- # ifdef NeXT
- (void)utimes((char *)fname, tvp);
- # else
- (void)utimes((char *)fname, &tvp);
- # endif
- # endif
- # endif
- }
- #endif /* UNIX */
- /*
- * buf_write() - write to file 'fname' lines 'start' through 'end'
- *
- * We do our own buffering here because fwrite() is so slow.
- *
- * If forceit is true, we don't care for errors when attempting backups (jw).
- * In case of an error everything possible is done to restore the original file.
- * But when forceit is TRUE, we risk loosing it.
- * When reset_changed is TRUE and start == 1 and end ==
- * curbuf->b_ml.ml_line_count, reset curbuf->b_changed.
- *
- * This function must NOT use NameBuff (because it's called by autowrite()).
- *
- * return FAIL for failure, OK otherwise
- */
- int
- buf_write(buf, fname, sfname, start, end, append, forceit,
- reset_changed, filtering)
- BUF *buf;
- char_u *fname;
- char_u *sfname;
- linenr_t start, end;
- int append;
- int forceit;
- int reset_changed;
- int filtering;
- {
- int fd;
- char_u *backup = NULL;
- char_u *ffname;
- #ifdef AUTOCMD
- BUF *save_buf;
- #endif
- char_u *s;
- char_u *ptr;
- char_u c;
- int len;
- linenr_t lnum;
- long nchars;
- char_u *errmsg = NULL;
- char_u *buffer;
- char_u smallbuf[SMBUFSIZE];
- char_u *backup_ext;
- int bufsize;
- long perm; /* file permissions */
- int retval = OK;
- int newfile = FALSE; /* TRUE if file doesn't exist yet */
- int msg_save = msg_scroll;
- int overwriting; /* TRUE if writing over original */
- int no_eol = FALSE; /* no end-of-line written */
- #if defined(UNIX) || defined(__EMX__XX) /*XXX fix me sometime? */
- struct stat st_old;
- int made_writable = FALSE; /* 'w' bit has been set */
- #endif
- #ifdef AMIGA
- BPTR flock;
- #endif
- #ifdef VMS
- char_u *cp, nfname[MAXPATHL];
- #endif
- /* writing everything */
- int whole = (start == 1 && end == buf->b_ml.ml_line_count);
- #ifdef AUTOCMD
- linenr_t old_line_count = buf->b_ml.ml_line_count;
- #endif
- int attr;
- int fileformat = get_fileformat(buf);
- if (fname == NULL || *fname == NUL) /* safety check */
- return FAIL;
- /*
- * If there is no file name yet, use the one for the written file.
- * b_notedited is set to reflect this (in case the write fails).
- * Don't do this when the write is for a filter command.
- * Only do this when 'cpoptions' contains the 'f' flag.
- */
- if (reset_changed && whole && buf == curbuf &&
- curbuf->b_ffname == NULL && !filtering &&
- vim_strchr(p_cpo, CPO_FNAMEW) != NULL)
- {
- if (setfname(fname, sfname, FALSE) == OK)
- curbuf->b_notedited = TRUE;
- }
- if (sfname == NULL)
- sfname = fname;
- /*
- * For Unix: Use the short file name whenever possible.
- * Avoids problems with networks and when directory names are changed.
- * Don't do this for MS-DOS, a "cd" in a sub-shell may have moved us to
- * another directory, which we don't detect
- */
- ffname = fname; /* remember full fname */
- #ifdef UNIX
- fname = sfname;
- #endif
- /* make sure we have a valid backup extension to use */
- if (*p_bex == NUL)
- #ifdef RISCOS
- backup_ext = (char_u *)"/bak";
- #else
- backup_ext = (char_u *)".bak";
- #endif
- else
- backup_ext = p_bex;
- if (buf->b_ffname != NULL && fnamecmp(ffname, buf->b_ffname) == 0)
- overwriting = TRUE;
- else
- overwriting = FALSE;
- /*
- * Disallow writing from .exrc and .vimrc in current directory for
- * security reasons.
- */
- if (check_secure())
- return FAIL;
- if (exiting)
- settmode(TMODE_COOK); /* when exiting allow typahead now */
- ++no_wait_return; /* don't wait for return yet */
- /*
- * Set '[ and '] marks to the lines to be written.
- */
- buf->b_op_start.lnum = start;
- buf->b_op_start.col = 0;
- buf->b_op_end.lnum = end;
- buf->b_op_end.col = 0;
- #ifdef AUTOCMD
- /*
- * Apply PRE aucocommands.
- * Set curbuf to the buffer to be written.
- * Careful: The autocommands may call buf_write() recursively!
- */
- save_buf = curbuf;
- curbuf = buf;
- curwin->w_buffer = buf;
- if (append)
- apply_autocmds(EVENT_FILEAPPENDPRE, fname, fname, FALSE, curbuf);
- else if (filtering)
- apply_autocmds(EVENT_FILTERWRITEPRE, NULL, fname, FALSE, curbuf);
- else if (reset_changed && whole)
- apply_autocmds(EVENT_BUFWRITEPRE, fname, fname, FALSE, curbuf);
- else
- apply_autocmds(EVENT_FILEWRITEPRE, fname, fname, FALSE, curbuf);
- /*
- * If the autocommands deleted or unloaded the buffer, give an error
- * message.
- */
- if (!buf_valid(buf) || buf->b_ml.ml_mfp == NULL)
- {
- --no_wait_return;
- msg_scroll = msg_save;
- EMSG("Autocommands deleted or unloaded buffer to be written");
- return FAIL;
- }
- /*
- * If the autocommands didn't change the current buffer, go back to the
- * original current buffer, if it still exists.
- */
- if (curbuf == buf && buf_valid(save_buf))
- {
- curbuf = save_buf;
- curwin->w_buffer = save_buf;
- }
- /*
- * The autocommands may have changed the number of lines in the file.
- * When writing the whole file, adjust the end.
- * When writing part of the file, assume that the autocommands only
- * changed the number of lines that are to be written (tricky!).
- */
- if (buf->b_ml.ml_line_count != old_line_count)
- {
- if (whole) /* writing all */
- end = buf->b_ml.ml_line_count;
- else if (buf->b_ml.ml_line_count > old_line_count) /* more lines */
- end += buf->b_ml.ml_line_count - old_line_count;
- else /* less lines */
- {
- end -= old_line_count - buf->b_ml.ml_line_count;
- if (end < start)
- {
- --no_wait_return;
- msg_scroll = msg_save;
- EMSG("Autocommand changed number of lines in unexpected way");
- return FAIL;
- }
- }
- }
- #endif
- if (shortmess(SHM_OVER))
- msg_scroll = FALSE; /* overwrite previous file message */
- else
- msg_scroll = TRUE; /* don't overwrite previous file message */
- if (!filtering)
- filemess(buf,
- #ifndef UNIX
- sfname,
- #else
- fname,
- #endif
- (char_u *)"", 0); /* show that we are busy */
- msg_scroll = FALSE; /* always overwrite the file message now */
- buffer = alloc(BUFSIZE);
- if (buffer == NULL) /* can't allocate big buffer, use small
- * one (to be able to write when out of
- * memory) */
- {
- buffer = smallbuf;
- bufsize = SMBUFSIZE;
- }
- else
- bufsize = BUFSIZE;
- #if defined(UNIX) && !defined(ARCHIE)
- /* get information about original file (if there is one) */
- st_old.st_dev = st_old.st_ino = 0;
- perm = -1;
- if (stat((char *)fname, &st_old))
- newfile = TRUE;
- else
- {
- if (!S_ISREG(st_old.st_mode)) /* not a file */
- {
- if (S_ISDIR(st_old.st_mode))
- errmsg = (char_u *)"is a directory";
- else
- errmsg = (char_u *)"is not a file";
- goto fail;
- }
- if (overwriting)
- {
- retval = check_mtime(buf, &st_old);
- if (retval == FAIL)
- goto fail;
- }
- perm = st_old.st_mode;
- }
- /*
- * If we are not appending or filtering, the file exists, and the
- * 'writebackup', 'backup' or 'patchmode' option is set, try to make a backup
- * copy of the file.
- */
- if (!append && !filtering && perm >= 0 && (p_wb || p_bk || *p_pm != NUL)
- && (fd = open((char *)fname, O_RDONLY | O_EXTRA
- #ifndef macintosh
- , 0 /* mode (avoid UMR) */
- #endif
- )) >= 0)
- {
- int bfd, buflen;
- char_u copybuf[BUFSIZE + 1], *wp;
- int some_error = FALSE;
- struct stat st_new;
- char_u *dirp;
- char_u *rootname;
- #ifndef SHORT_FNAME
- int did_set_shortname;
- #endif
- /*
- * Try to make the backup in each directory in the 'bdir' option.
- *
- * Unix semantics has it, that we may have a writable file,
- * that cannot be recreated with a simple open(..., O_CREAT, ) e.g:
- * - the directory is not writable,
- * - the file may be a symbolic link,
- * - the file may belong to another user/group, etc.
- *
- * For these reasons, the existing writable file must be truncated
- * and reused. Creation of a backup COPY will be attempted.
- */
- dirp = p_bdir;
- while (*dirp)
- {
- st_new.st_dev = st_new.st_ino = 0;
- st_new.st_gid = 0;
- /*
- * Isolate one directory name, using an entry in 'bdir'.
- */
- (void)copy_option_part(&dirp, copybuf, BUFSIZE, ",");
- rootname = get_file_in_dir(fname, copybuf);
- if (rootname == NULL)
- {
- some_error = TRUE; /* out of memory */
- goto nobackup;
- }
- #ifndef SHORT_FNAME
- did_set_shortname = FALSE;
- #endif
- /*
- * May try twice if 'shortname' not set.
- */
- for (;;)
- {
- /*
- * Make backup file name.
- */
- backup = buf_modname(
- #ifdef SHORT_FNAME
- TRUE,
- #else
- (buf->b_p_sn || buf->b_shortname),
- #endif
- rootname, backup_ext, FALSE);
- if (backup == NULL)
- {
- some_error = TRUE; /* out of memory */
- vim_free(rootname);
- goto nobackup;
- }
- /*
- * Check if backup file already exists.
- */
- if (!stat((char *)backup, &st_new))
- {
- /*
- * Check if backup file is same as original file.
- * May happen when modname gave the same file back.
- * E.g. silly link, or file name-length reached.
- * If we don't check here, we either ruin the file when
- * copying or erase it after writing. jw.
- */
- if (st_new.st_dev == st_old.st_dev &&
- st_new.st_ino == st_old.st_ino)
- {
- vim_free(backup);
- backup = NULL; /* there is no backup file to delete */
- #ifndef SHORT_FNAME
- /*
- * may try again with 'shortname' set
- */
- if (!(buf->b_shortname || buf->b_p_sn))
- {
- buf->b_shortname = TRUE;
- did_set_shortname = TRUE;
- continue;
- }
- /* setting shortname didn't help */
- if (did_set_shortname)
- buf->b_shortname = FALSE;
- #endif
- break;
- }
- /*
- * If we are not going to keep the backup file, don't
- * delete an existing one, try to use another name.
- * Change one character, just before the extension.
- */
- if (!p_bk)
- {
- wp = backup + STRLEN(backup) - 1 - STRLEN(backup_ext);
- if (wp < backup) /* empty file name ??? */
- wp = backup;
- *wp = 'z';
- while (*wp > 'a' && !stat((char *)backup, &st_new))
- --*wp;
- /* They all exist??? Must be something wrong. */
- if (*wp == 'a')
- {
- vim_free(backup);
- backup = NULL;
- }
- }
- }
- break;
- }
- vim_free(rootname);
- /*
- * Try to create the backup file
- */
- if (backup != NULL)
- {
- /* remove old backup, if present */
- mch_remove(backup);
- bfd = open((char *)backup, O_WRONLY | O_CREAT | O_EXTRA, 0666);
- if (bfd < 0)
- {
- vim_free(backup);
- backup = NULL;
- }
- else
- {
- /* set file protection same as original file, but strip
- * s-bit */
- (void)mch_setperm(backup, perm & 0777);
- /*
- * Try to set the group of the backup same as the original
- * file. If this fails, set the protection bits for the
- * group same as the protection bits for others.
- */
- if (st_new.st_gid != st_old.st_gid &&
- #ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */
- fchown(bfd, (uid_t)-1, st_old.st_gid) != 0
- #else
- chown((char *)backup, (uid_t)-1, st_old.st_gid) != 0
- #endif
- )
- mch_setperm(backup, (perm & 0707) | ((perm & 07) << 3));
- /* copy the file. */
- while ((buflen = read(fd, (char *)copybuf, BUFSIZE)) > 0)
- {
- if (write_buf(bfd, copybuf, buflen) == FAIL)
- {
- errmsg = (char_u *)"Can't write to backup file (use ! to override)";
- break;
- }
- }
- if (close(bfd) < 0 && errmsg == NULL)
- errmsg = (char_u *)"Close error for backup file (use ! to override)";
- if (buflen < 0)
- errmsg = (char_u *)"Can't read file for backup (use ! to override)";
- set_file_time(backup, st_old.st_atime, st_old.st_mtime);
- break;
- }
- }
- }
- nobackup:
- close(fd); /* ignore errors for closing read file */
- if (backup == NULL && errmsg == NULL)
- errmsg = (char_u *)"Cannot create backup file (use ! to override)";
- /* ignore errors when forceit is TRUE */
- if ((some_error || errmsg) && !forceit)
- {
- retval = FAIL;
- goto fail;
- }
- errmsg = NULL;
- }
- /* When using ":w!" and the file was read-only: make it writable */
- if (forceit && st_old.st_uid == getuid() && perm >= 0 && !(perm & 0200)
- && vim_strchr(p_cpo, CPO_FWRITE) == NULL)
- {
- perm |= 0200;
- (void)mch_setperm(fname, perm);
- made_writable = TRUE;
- }
- #else /* end of UNIX, start of the rest */
- /*
- * If we are not appending, the file exists, and the 'writebackup' or
- * 'backup' option is set, make a backup.
- * Do not make any backup, if "writebackup" and "backup" are
- * both switched off. This helps when editing large files on
- * almost-full disks. (jw)
- */
- perm = mch_getperm(fname);
- if (perm < 0)
- newfile = TRUE;
- else if (mch_isdir(fname))
- {
- errmsg = (char_u *)"is a directory";
- goto fail;
- }
- else if (overwriting)
- {
- struct stat st;
- if (stat((char *)fname, &st) >= 0)
- {
- retval = check_mtime(buf, &st);
- if (retval == FAIL)
- goto fail;
- }
- }
- if (!append && !filtering && perm >= 0 && (p_wb || p_bk || *p_pm != NUL))
- {
- char_u *dirp;
- char_u *p;
- char_u *rootname;
- /*
- * Form the backup file name - change path/fo.o.h to path/fo.o.h.bak
- * Try all directories in 'backupdir', first one that works is used.
- */
- dirp = p_bdir;
- while (*dirp)
- {
- /*
- * Isolate one directory name and make the backup file name.
- */
- (void)copy_option_part(&dirp, IObuff, IOSIZE, ",");
- rootname = get_file_in_dir(fname, IObuff);
- if (rootname == NULL)
- backup = NULL;
- else
- {
- backup = buf_modname(
- #ifdef SHORT_FNAME
- TRUE,
- #else
- (buf->b_p_sn || buf->b_shortname),
- #endif
- rootname, backup_ext, FALSE);
- vim_free(rootname);
- }
- if (backup != NULL)
- {
- /*
- * If we are not going to keep the backup file, don't
- * delete an existing one, try to use another name.
- * Change one character, just before the extension.
- */
- if (!p_bk && mch_getperm(backup) >= 0)
- {
- p = backup + STRLEN(backup) - 1 - STRLEN(backup_ext);
- if (p < backup) /* empty file name ??? */
- p = backup;
- *p = 'z';
- while (*p > 'a' && mch_getperm(backup) >= 0)
- --*p;
- /* They all exist??? Must be something wrong! */
- if (*p == 'a')
- {
- vim_free(backup);
- backup = NULL;
- }
- }
- }
- if (backup != NULL)
- {
- /*
- * Delete any existing backup and move the current version to
- * the backup. For safety, we don't remove the backup until
- * the write has finished successfully. And if the 'backup'
- * option is set, leave it around.
- */
- #ifdef AMIGA
- /*
- * With MSDOS-compatible filesystems (crossdos, messydos) it is
- * possible that the name of the backup file is the same as the
- * original file. To avoid the chance of accidently deleting the
- * original file (horror!) we lock it during the remove.
- * This should not happen with ":w", because startscript()
- * should detect this problem and set buf->b_shortname,
- * causing modname to return a correct ".bak" file name. This
- * problem does exist with ":w file name", but then the
- * original file will be somewhere else so the backup isn't
- * really important. If autoscripting is off the rename may
- * fail.
- */
- flock = Lock((UBYTE *)fname, (long)ACCESS_READ);
- #endif
- mch_remove(backup);
- #ifdef AMIGA
- if (flock)
- UnLock(flock);
- #endif
- /*
- * If the renaming of the original file to the backup file
- * works, quit here.
- */
- if (vim_rename(fname, backup) == 0)
- break;
- vim_free(backup); /* don't do the rename below */
- backup = NULL;
- }
- }
- if (backup == NULL && !forceit)
- {
- errmsg = (char_u *)"Can't make backup file (use ! to override)";
- goto fail;
- }
- }
- #endif /* UNIX */
- /* When using ":w!" and writing to the current file, readonly makes no
- * sense, reset it */
- if (forceit && overwriting)
- buf->b_p_ro = FALSE;
- /*
- * If the original file is being overwritten, there is a small chance that
- * we crash in the middle of writing. Therefore the file is preserved now.
- * This makes all block numbers positive so that recovery does not need
- * the original file.
- * Don't do this if there is a backup file and we are exiting.
- */
- if (reset_changed && !newfile && !otherfile(ffname) &&
- !(exiting && backup != NULL))
- ml_preserve(buf, FALSE);
- /*
- * We may try to open the file twice: If we can't write to the
- * file and forceit is TRUE we delete the existing file and try to create
- * a new one. If this still fails we may have lost the original file!
- * (this may happen when the user reached his quotum for number of files).
- * Appending will fail if the file does not exist and forceit is FALSE.
- */
- #ifdef VMS
- STRCPY(nfname, fname);
- if (cp = vim_strchr(nfname, ';')) /* remove version */
- *cp = ' ';
- #endif
- while ((fd = open((char *)
- #ifdef VMS
- nfname,
- #else
- fname,
- #endif
- O_WRONLY | O_EXTRA | (append ?
- (forceit ? (O_APPEND | O_CREAT) : O_APPEND) :
- (O_CREAT | O_TRUNC))
- #ifndef macintosh
- , 0666
- #endif
- )) < 0)
- {
- /*
- * A forced write will try to create a new file if the old one is
- * still readonly. This may also happen when the directory is
- * read-only. In that case the mch_remove() will fail.
- */
- if (!errmsg)
- {
- errmsg = (char_u *)"Can't open file for writing";
- if (forceit && vim_strchr(p_cpo, CPO_FWRITE) == NULL)
- {
- #ifdef UNIX
- /* we write to the file, thus it should be marked
- writable after all */
- if (!(perm & 0200))
- made_writable = TRUE;
- perm |= 0200;
- if (st_old.st_uid != getuid() || st_old.st_gid != getgid())
- perm &= 0777;
- #endif
- if (!append) /* don't remove when appending */
- mch_remove(fname);
- continue;
- }
- }
- /*
- * If we failed to open the file, we don't need a backup. Throw it away.
- * If we moved or removed the original file try to put the backup in its place.
- */
- if (backup != NULL)
- {
- #ifdef UNIX
- struct stat st;
- /*
- * There is a small chance that we removed the original, try
- * to move the copy in its place.
- * This may not work if the vim_rename() fails.
- * In that case we leave the copy around.
- */
- /* file does not exist */
- if (stat((char *)fname, &st) < 0)
- /* put the copy in its place */
- vim_rename(backup, fname);
- /* original file does exist */
- if (stat((char *)fname, &st) >= 0)
- mch_remove(backup); /* throw away the copy */
- #else
- /* try to put the original file back */
- vim_rename(backup, fname);
- #endif
- }
- goto fail;
- }
- errmsg = NULL;
- if (end > buf->b_ml.ml_line_count)
- end = buf->b_ml.ml_line_count;
- len = 0;
- s = buffer;
- nchars = 0;
- if (buf->b_ml.ml_flags & ML_EMPTY)
- start = end + 1;
- for (lnum = start; lnum <= end; ++lnum)
- {
- /*
- * The next while loop is done once for each character written.
- * Keep it fast!
- */
- ptr = ml_get_buf(buf, lnum, FALSE) - 1;
- while ((c = *++ptr) != NUL)
- {
- if (c == NL)
- *s = NUL; /* replace newlines with NULs */
- else
- *s = c;
- ++s;
- if (++len != bufsize)
- continue;
- if (write_buf(fd, buffer, bufsize) == FAIL)
- {
- end = 0; /* write error: break loop */
- break;
- }
- nchars += bufsize;
- s = buffer;
- len = 0;
- }
- /* write failed or last line has no EOL: stop here */
- if (end == 0 || (lnum == end && buf->b_p_bin &&
- (lnum == write_no_eol_lnum ||
- (lnum == buf->b_ml.ml_line_count && !buf->b_p_eol))))
- {
- ++lnum; /* written the line, count it */
- no_eol = TRUE;
- break;
- }
- if (fileformat == EOL_UNIX)
- *s++ = NL;
- else
- {
- *s++ = CR; /* EOL_MAC or EOL_DOS: write CR */
- if (fileformat == EOL_DOS) /* write CR-NL */
- {
- if (++len == bufsize)
- {
- if (write_buf(fd, buffer, bufsize) == FAIL)
- {
- end = 0; /* write error: break loop */
- break;
- }
- nchars += bufsize;
- s = buffer;
- len = 0;
- }
- *s++ = NL;
- }
- }
- if (++len == bufsize && end)
- {
- if (write_buf(fd, buffer, bufsize) == FAIL)
- {
- end = 0; /* write error: break loop */
- break;
- }
- nchars += bufsize;
- s = buffer;
- len = 0;
- }
- }
- if (len && end)
- {
- if (write_buf(fd, buffer, len) == FAIL)
- end = 0; /* write error */
- nchars += len;
- }
- if (close(fd) != 0)
- {
- errmsg = (char_u *)"Close failed";
- goto fail;
- }
- #ifdef UNIX
- if (made_writable)
- perm &= ~0200; /* reset 'w' bit for security reasons */
- #endif
- if (perm >= 0) /* set perm. of new file same as old file */
- (void)mch_setperm(fname, perm);
- #ifdef RISCOS
- if (!append && !filtering)
- /* Set the filetype after writing the file. */
- ro_set_filetype(fname, buf->b_p_ft);
- #endif
- if (end == 0)
- {
- errmsg = (char_u *)"write error (file system full?)";
- /*
- * If we have a backup file, try to put it in place of the new file,
- * because it is probably corrupt. This avoids loosing the original
- * file when trying to make a backup when writing the file a second
- * time.
- * For unix this means copying the backup over the new file.
- * For others this means renaming the backup file.
- * If this is OK, don't give the extra warning message.
- */
- if (backup != NULL)
- {
- #ifdef UNIX
- char_u copybuf[BUFSIZE + 1];
- int bfd, buflen;
- if ((bfd = open((char *)backup, O_RDONLY | O_EXTRA, 0)) >= 0)
- {
- if ((fd = open((char *)fname,
- O_WRONLY | O_CREAT | O_TRUNC | O_EXTRA, 0666)) >= 0)
- {
- /* copy the file. */
- while ((buflen = read(bfd, (char *)copybuf, BUFSIZE)) > 0)
- if (write_buf(fd, copybuf, buflen) == FAIL)
- break;
- if (close(fd) >= 0 && buflen == 0) /* success */
- end = 1;
- }
- close(bfd); /* ignore errors for closing read file */
- }
- #else
- if (vim_rename(backup, fname) == 0)
- end = 1;
- #endif
- }
- goto fail;
- }
- lnum -= start; /* compute number of written lines */
- --no_wait_return; /* may wait for return now */
- #ifndef UNIX
- fname = sfname; /* use shortname now, for the messages */
- #endif
- if (!filtering)
- {
- msg_add_fname(buf, fname); /* put fname in IObuff with quotes */
- c = FALSE;
- if (newfile)
- {
- STRCAT(IObuff, shortmess(SHM_NEW) ? "[New]" : "[New File]");
- c = TRUE;
- }
- if (no_eol)
- {
- msg_add_eol();
- c = TRUE;
- }
- /* may add [unix/dos/mac] */
- if (msg_add_fileformat(fileformat))
- c = TRUE;
- msg_add_lines(c, (long)lnum, nchars); /* add line/char count */
- if (!shortmess(SHM_WRITE))
- STRCAT(IObuff, shortmess(SHM_WRI) ? " [w]" : " written");
- keep_msg = msg_trunc_attr(IObuff, FALSE, 0);
- keep_msg_attr = 0;
- }
- if (reset_changed && whole) /* when written everything */
- {
- unchanged(buf, TRUE);
- u_unchanged(buf);
- }
- /*
- * If written to the current file, update the timestamp of the swap file
- * and reset the 'notedited' flag. Also sets buf->b_mtime.
- */
- if (!exiting && overwriting)
- {
- ml_timestamp(buf);
- buf->b_notedited = FALSE;
- }
- /*
- * If we kept a backup until now, and we are in patch mode, then we make
- * the backup file our 'original' file.
- */
- if (*p_pm)
- {
- char *org = (char *)buf_modname(
- #ifdef SHORT_FNAME
- TRUE,
- #else
- (buf->b_p_sn || buf->b_shortname),
- #endif
- fname, p_pm, FALSE);
- if (backup != NULL)
- {
- struct stat st;
- /*
- * If the original file does not exist yet
- * the current backup file becomes the original file
- */
- if (org == NULL)
- EMSG("patchmode: can't save original file");
- else if (stat(org, &st) < 0)
- {
- vim_rename(backup, (char_u *)org);
- vim_free(backup); /* don't delete the file */
- backup = NULL;
- #ifdef UNIX
- set_file_time((char_u *)org, st_old.st_atime, st_old.st_mtime);
- #endif
- }
- }
- /*
- * If there is no backup file, remember that a (new) file was
- * created.
- */
- else
- {
- int empty_fd;
- if (org == NULL || (empty_fd = open(org, O_CREAT | O_EXTRA
- #ifndef macintosh
- , 0666
- #endif
- )) < 0)
- EMSG("patchmode: can't touch empty original file");
- else
- close(empty_fd);
- }
- if (org != NULL)
- {
- mch_setperm((char_u *)org, mch_getperm(fname) & 0777);
- vim_free(org);
- }
- }
- /*
- * Remove the backup unless 'backup' option is set
- */
- if (!p_bk && backup != NULL && mch_remove(backup) != 0)
- EMSG("Can't delete backup file");
- goto nofail;
- fail:
- --no_wait_return; /* may wait for return now */
- nofail:
- vim_free(backup);
- if (buffer != smallbuf)
- vim_free(buffer);
- if (errmsg != NULL)
- {
- attr = hl_attr(HLF_E); /* set highlight for error messages */
- msg_add_fname(buf,
- #ifndef UNIX
- sfname
- #else
- fname
- #endif
- ); /* put file name in IObuff with quotes */
- STRCAT(IObuff, errmsg);
- emsg(IObuff);
- retval = FAIL;
- if (end == 0)
- {
- MSG_PUTS_ATTR("nWARNING: Original file may be lost or damagedn",
- attr);
- MSG_PUTS_ATTR("don't quit the editor until the file is successfully written!",
- attr);
- }
- }
- msg_scroll = msg_save;
- #ifdef AUTOCMD
- write_no_eol_lnum = 0; /* in case it was set by the previous read */
- /*
- * Apply POST autocommands.
- * Careful: The autocommands may call buf_write() recursively!
- */
- save_buf = curbuf;
- curbuf = buf;
- curwin->w_buffer = buf;
- if (append)
- apply_autocmds(EVENT_FILEAPPENDPOST, fname, fname, FALSE, curbuf);
- else if (filtering)
- apply_autocmds(EVENT_FILTERWRITEPOST, NULL, fname, FALSE, curbuf);
- else if (reset_changed && whole)
- apply_autocmds(EVENT_BUFWRITEPOST, fname, fname, FALSE, curbuf);
- else
- apply_autocmds(EVENT_FILEWRITEPOST, fname, fname, FALSE, curbuf);
- /*
- * If the autocommands didn't change the current buffer, go back to the
- * original current buffer, if it still exists.
- */
- if (curbuf == buf && buf_valid(save_buf))
- {
- curbuf = save_buf;
- curwin->w_buffer = save_buf;
- }
- #endif
- return retval;
- }
- /*
- * Put file name into IObuff with quotes.
- */
- static void
- msg_add_fname(buf, fname)
- BUF *buf;
- char_u *fname;
- {
- if (fname == NULL)
- fname = (char_u *)"-stdin-";
- home_replace(buf, fname, IObuff + 1, IOSIZE - 1, TRUE);
- IObuff[0] = '"';
- STRCAT(IObuff, "" ");
- }
- /*
- * Append message for text mode to IObuff.
- * Return TRUE if something appended.
- */
- static int
- msg_add_fileformat(eol_type)
- int eol_type;
- {
- #ifndef USE_CRNL
- if (eol_type == EOL_DOS)
- {
- STRCAT(IObuff, shortmess(SHM_TEXT) ? "[dos]" : "[dos format]");
- return TRUE;
- }
- #endif
- #ifndef USE_CR
- if (eol_type == EOL_MAC)
- {
- STRCAT(IObuff, shortmess(SHM_TEXT) ? "[mac]" : "[mac format]");
- return TRUE;
- }
- #endif
- #if defined(USE_CRNL) || defined(USE_CR)
- if (eol_type == EOL_UNIX)
- {
- STRCAT(IObuff, shortmess(SHM_TEXT) ? "[unix]" : "[unix format]");
- return TRUE;
- }
- #endif
- return FALSE;
- }
- /*
- * Append line and character count to IObuff.
- */
- static void
- msg_add_lines(insert_space, lnum, nchars)
- int insert_space;
- long lnum;
- long nchars;
- {
- char_u *p;
- p = IObuff + STRLEN(IObuff);
- if (insert_space)
- *p++ = ' ';
- if (shortmess(SHM_LINES))
- sprintf((char *)p, "%ldL, %ldC", lnum, nchars);
- else
- sprintf((char *)p, "%ld line%s, %ld character%s",
- lnum, plural(lnum),
- nchars, plural(nchars));
- }
- /*
- * Append message for missing line separator to IObuff.
- */
- static void
- msg_add_eol()
- {
- STRCAT(IObuff, shortmess(SHM_LAST) ? "[noeol]" : "[Incomplete last line]");
- }
- /*
- * Check modification time of file, before writing to it.
- */
- static int
- check_mtime(buf, st)
- BUF *buf;
- struct stat *st;
- {
- if (buf->b_mtime_read != 0
- #ifdef __linux__
- /* In Linux, on a FAT filesystem, there are only 5 bits to store
- * the seconds. Since the roundoff is done when flushing the
- * inode, the time may change unexpectedly by one second!!! */
- && st->st_mtime - buf->b_mtime_read > 1
- #else
- && buf->b_mtime_read != st->st_mtime
- #endif
- )
- {
- msg_scroll = TRUE; /* don't overwrite messages here */
- /* don't use emsg() here, don't want to flush the buffers */
- MSG_ATTR("WARNING: The file has been changed since reading it!!!",
- hl_attr(HLF_E));
- if (ask_yesno((char_u *)"Do you really want to write to it",
- TRUE) == 'n')
- return FAIL;
- msg_scroll = FALSE; /* always overwrite the file message now */
- }
- return OK;
- }
- /*
- * write_buf: call write() to write a buffer
- *
- * return FAIL for failure, OK otherwise
- */
- static int
- write_buf(fd, buf, len)
- int fd;
- char_u *buf;
- int len;
- {
- int wlen;
- while (len)
- {
- wlen = write(fd, (char *)buf, (size_t)len);
- if (wlen <= 0) /* error! */
- return FAIL;
- len -= wlen;
- buf += wlen;
- }
- return OK;
- }
- /*
- * shorten_fname: Try to find a shortname by comparing the fullname with the
- * current directory.
- * Returns NULL if not shorter name possible, pointer into "full_path"
- * otherwise.
- */
- char_u *
- shorten_fname(full_path, dir_name)
- char_u *full_path;
- char_u *dir_name;
- {
- int len;
- char_u *p;
- if (full_path == NULL)
- return NULL;
- len = STRLEN(dir_name);
- if (fnamencmp(dir_name, full_path, len) == 0)
- {
- p = full_path + len;
- #if defined(MSDOS) || defined(WIN32) || defined(OS2)
- /*
- * MSDOS: when a file is in the root directory, dir_name will end in a
- * slash, since C: by itself does not define a specific dir. In this
- * case p may already be correct. <negri>
- */
- if (!((len > 2) && (*(p - 2) == ':')))
- #endif
- if (vim_ispathsep(*p))
- ++p;
- else
- p = NULL;
- }
- #if defined(MSDOS) || defined(WIN32) || defined(OS2)
- /*
- * When using a file in the current drive, remove the drive name:
- * "A:dirfile" -> "dirfile". This helps when moving a session file on
- * a floppy from "A:dir" to "B:dir".
- */
- else if (len > 3
- && TO_UPPER(full_path[0]) == TO_UPPER(dir_name[0])
- && full_path[1] == ':'
- && vim_ispathsep(full_path[2]))
- p = full_path + 2;
- #endif
- else
- p = NULL;
- return p;
- }
- /*
- * Use full path from now on for files currently being edited, both for file
- * name and swap file name. Try to shorten the file names a bit if safe to do
- * so.
- */
- void
- shorten_fnames()
- {
- char_u dirname[MAXPATHL];
- BUF *buf;
- char_u *p;
- mch_dirname(dirname, MAXPATHL);
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- {
- if (buf->b_fname != NULL)
- {
- vim_free(buf->b_sfname);
- buf->b_sfname = NULL;
- p = shorten_fname(buf->b_ffname, dirname);
- if (p != NULL)
- {
- buf->b_sfname = vim_strsave(p);
- buf->b_fname = buf->b_sfname;
- }
- if (p == NULL || buf->b_fname == NULL)
- buf->b_fname = buf->b_ffname;
- mf_fullname(buf->b_ml.ml_mfp);
- }
- }
- status_redraw_all();
- }
- /*
- * add extention to file name - change path/fo.o.h to path/fo.o.h.ext or
- * fo_o_h.ext for MSDOS or when shortname option set.
- *
- * Assumed that fname is a valid name found in the filesystem we assure that
- * the return value is a different name and ends in 'ext'.
- * "ext" MUST be at most 4 characters long if it starts with a dot, 3
- * characters otherwise.
- * Space for the returned name is allocated, must be freed later.
- * Returns NULL when out of memory.
- */
- char_u *
- modname(fname, ext, prepend_dot)
- char_u *fname, *ext;
- int prepend_dot; /* may prepend a '.' to file name */
- {
- return buf_modname(
- #ifdef SHORT_FNAME
- TRUE,
- #else
- (curbuf->b_p_sn || curbuf->b_shortname),
- #endif
- fname, ext, prepend_dot);
- }
- char_u *
- buf_modname(shortname, fname, ext, prepend_dot)
- int shortname; /* use 8.3 file name */
- char_u *fname, *ext;
- int prepend_dot; /* may prepend a '.' to file name (for Unix) */
- {
- char_u *retval;
- char_u *s;
- char_u *e;
- char_u *ptr;
- int fnamelen, extlen;
- extlen = STRLEN(ext);
- /*
- * If there is no file name we must get the name of the current directory
- * (we need the full path in case :cd is used).
- */
- if (fname == NULL || *fname == NUL)
- {
- retval = alloc((unsigned)(MAXPATHL + extlen + 3));
- if (retval == NULL)
- return NULL;
- if (mch_dirname(retval, MAXPATHL) == FAIL ||
- (fnamelen = STRLEN(retval)) == 0)
- {
- vim_free(retval);
- return NULL;
- }
- if (!vim_ispathsep(retval[fnamelen - 1]))
- {
- retval[fnamelen++] = PATHSEP;
- retval[fnamelen] = NUL;
- }
- #ifndef SHORT_FNAME
- prepend_dot = FALSE; /* nothing to prepend a dot to */
- #endif
- }
- else
- {
- fnamelen = STRLEN(fname);
- retval = alloc((unsigned)(fnamelen + extlen + 3));
- if (retval == NULL)
- return NULL;
- STRCPY(retval, fname);
- }
- /*
- * search backwards until we hit a '/', '' or ':' replacing all '.'
- * by '_' for MSDOS or when shortname option set and ext starts with a dot.
- * Then truncate what is after the '/', '' or ':' to 8 characters for
- * MSDOS and 26 characters for AMIGA, a lot more for UNIX.
- */
- for (ptr = retval + fnamelen; ptr >= retval; ptr--)
- {
- #ifndef RISCOS
- if (*ext == '.'
- #ifdef USE_LONG_FNAME
- && (!USE_LONG_FNAME || shortname)
- #else
- # ifndef SHORT_FNAME
- && shortname
- # endif
- #endif
- )
- if (*ptr == '.') /* replace '.' by '_' */
- *ptr = '_';
- #endif /* RISCOS */
- if (vim_ispathsep(*ptr))
- break;
- }
- ptr++;
- /* the file name has at most BASENAMELEN characters. */
- #ifndef SHORT_FNAME
- if (STRLEN(ptr) > (unsigned)BASENAMELEN)
- ptr[BASENAMELEN] = ' ';
- #endif
- s = ptr + STRLEN(ptr);
- /*
- * For 8.3 file names we may have to reduce the length.
- */
- #ifdef USE_LONG_FNAME
- if (!USE_LONG_FNAME || shortname)
- #else
- # ifndef SHORT_FNAME
- if (shortname)
- # endif
- #endif
- {
- /*
- * If there is no file name, or the file name ends in '/', and the
- * extension starts with '.', put a '_' before the dot, because just
- * ".ext" is invalid.
- */
- if (fname == NULL || *fname == NUL
- || vim_ispathsep(fname[STRLEN(fname) - 1]))
- {
- #ifdef RISCOS
- if (*ext == '/')
- #else
- if (*ext == '.')
- #endif
- *s++ = '_';
- }
- /*
- * If the extension starts with '.', truncate the base name at 8
- * characters
- */
- #ifdef RISCOS
- /* We normally use '/', but swap files are '_' */
- else if (*ext == '/' || *ext == '_')
- #else
- else if (*ext == '.')
- #endif
- {
- if (s - ptr > (size_t)8)
- {
- s = ptr + 8;
- *s = ' ';
- }
- }
- /*
- * If the extension doesn't start with '.', and the file name
- * doesn't have an extension yet, append a '.'
- */
- #ifdef RISCOS
- else if ((e = vim_strchr(ptr, '/')) == NULL)
- *s++ = '/';
- #else
- else if ((e = vim_strchr(ptr, '.')) == NULL)
- *s++ = '.';
- #endif
- /*
- * If the extension doesn't start with '.', and there already is an
- * extension, it may need to be tructated
- */
- else if ((int)STRLEN(e) + extlen > 4)
- s = e + 4 - extlen;
- }
- #if defined(OS2) || defined(USE_LONG_FNAME) || defined(WIN32)
- /*
- * If there is no file name, and the extension starts with '.', put a
- * '_' before the dot, because just ".ext" may be invalid if it's on a
- * FAT partition, and on HPFS it doesn't matter.
- */
- else if ((fname == NULL || *fname == NUL) && *ext == '.')
- *s++ = '_';
- #endif
- /*
- * Append the extention.
- * ext can start with '.' and cannot exceed 3 more characters.
- */
- STRCPY(s, ext);
- #ifndef SHORT_FNAME
- /*
- * Prepend the dot.
- */
- if (prepend_dot && !shortname && *(e = gettail(retval)) !=
- #ifdef RISCOS
- '/'
- #else
- '.'
- #endif
- #ifdef USE_LONG_FNAME
- && USE_LONG_FNAME
- #endif
- )
- {
- mch_memmove(e + 1, e, STRLEN(e) + 1);
- #ifdef RISCOS
- *e = '/';
- #else
- *e = '.';
- #endif
- }
- #endif
- /*
- * Check that, after appending the extension, the file name is really
- * different.
- */
- if (fname != NULL && STRCMP(fname, retval) == 0)
- {
- /* we search for a character that can be replaced by '_' */
- while (--s >= ptr)
- {
- if (*s != '_')
- {
- *s = '_';
- break;
- }
- }
- if (s < ptr) /* fname was "________.<ext>" how tricky! */
- *ptr = 'v';
- }
- return retval;
- }
- /* vim_fgets();
- *
- * Like fgets(), but if the file line is too long, it is truncated and the
- * rest of the line is thrown away. Returns TRUE for end-of-file.
- * Note: do not pass IObuff as the buffer since this is used to read and
- * discard the extra part of any long lines.
- */
- int
- vim_fgets(buf, size, fp)
- char_u *buf;
- int size;
- FILE *fp;
- {
- char *eof;
- buf[size - 2] = NUL;
- eof = fgets((char *)buf, size, fp);
- if (buf[size - 2] != NUL && buf[size - 2] != 'n')
- {
- buf[size - 1] = NUL; /* Truncate the line */
- /* Now throw away the rest of the line: */
- do
- {
- IObuff[IOSIZE - 2] = NUL;
- fgets((char *)IObuff, IOSIZE, fp);
- } while (IObuff[IOSIZE - 2] != NUL && IObuff[IOSIZE - 2] != 'n');
- }
- return (eof == NULL);
- }
- /*
- * rename() only works if both files are on the same file system, this
- * function will (attempts to?) copy the file across if rename fails -- webb
- * Return -1 for failure, 0 for success.
- */
- int
- vim_rename(from, to)
- char_u *from;
- char_u *to;
- {
- int fd_in;
- int fd_out;
- int n;
- char *errmsg = NULL;
- char *buffer;
- /*
- * First delete the "to" file, this is required on some systems to make
- * the mch_rename() work, on other systems it makes sure that we don't
- * have two files when the mch_rename() fails.
- */
- mch_remove(to);
- /*
- * First try a normal rename, return if it works.
- */
- if (mch_rename((char *)from, (char *)to) == 0)
- return 0;
- /*
- * Rename() failed, try copying the file.
- */
- fd_in = open((char *)from, O_RDONLY | O_EXTRA
- #ifndef macintosh
- , 0
- #endif
- );
- if (fd_in == -1)
- return -1;
- fd_out = open((char *)to, O_CREAT | O_TRUNC | O_WRONLY | O_EXTRA
- #ifndef macintosh
- , 0666
- #endif
- );
- if (fd_out == -1)
- {
- close(fd_in);
- return -1;
- }
- buffer = (char *)alloc(BUFSIZE);
- if (buffer == NULL)
- {
- close(fd_in);
- close(fd_out);
- return -1;
- }
- while ((n = read(fd_in, buffer, (size_t)BUFSIZE)) > 0)
- if (write(fd_out, buffer, (size_t)n) != n)
- {
- errmsg = "writing to";
- break;
- }
- vim_free(buffer);
- close(fd_in);
- if (close(fd_out) < 0)
- errmsg = "closing";
- if (n < 0)
- {
- errmsg = "reading";
- to = from;
- }
- if (errmsg != NULL)
- {
- sprintf((char *)IObuff, "Error %s '%s'", errmsg, to);
- emsg(IObuff);
- return -1;
- }
- mch_remove(from);
- return 0;
- }
- /*
- * Check if any not hidden buffer has been changed.
- * Postpone the check if there are characters in the stuff buffer, a global
- * command is being executed, a mapping is being executed or an autocommand is
- * busy.
- */
- void
- check_timestamps()
- {
- BUF *buf;
- if (!stuff_empty() || global_busy || !typebuf_typed()
- #ifdef AUTOCMD
- || autocmd_busy
- #endif
- )
- need_check_timestamps = TRUE; /* check later */
- else
- {
- ++no_wait_return;
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- buf_check_timestamp(buf);
- --no_wait_return;
- need_check_timestamps = FALSE;
- if (need_wait_return) /* make sure the message isn't overwritten */
- msg_puts((char_u *)"n");
- }
- }
- /*
- * Check if buffer "buf" has been changed.
- */
- void
- buf_check_timestamp(buf)
- BUF *buf;
- {
- struct stat st;
- char_u *path;
- if ( buf->b_ffname != NULL
- && buf->b_ml.ml_mfp != NULL
- && !buf->b_notedited
- && buf->b_mtime != 0
- && stat((char *)buf->b_ffname, &st) >= 0
- #ifdef __linux__
- /* In Linux, on a FAT filesystem, there are only 5 bits to
- * store the seconds. Since the roundoff is done when
- * flushing the inode, the time may change unexpectedly by one
- * second!!! */
- && st.st_mtime - buf->b_mtime > 1
- #else
- && buf->b_mtime != st.st_mtime
- #endif
- )
- {
- #ifdef AUTOCMD
- /*
- * Only give the warning if there are no FileChangedShell autocommands.
- */
- if (!apply_autocmds(EVENT_FILECHANGEDSHELL,
- buf->b_fname, buf->b_fname, FALSE, buf))
- #endif
- {
- path = home_replace_save(buf, buf->b_fname);
- if (path != NULL)
- {
- EMSG2("Warning: File "%s" has changed since editing started",
- path);
- vim_free(path);
- }
- }
- buf->b_mtime = st.st_mtime;
- }
- }
- /*
- * Adjust the line with missing eol, used for the next write.
- * Used for do_filter(), when the input lines for the filter are deleted.
- */
- void
- write_lnum_adjust(offset)
- linenr_t offset;
- {
- if (write_no_eol_lnum) /* only if there is a missing eol */
- write_no_eol_lnum += offset;
- }
- /*
- * vim_tempname(): Return a unique name that can be used for a temp file.
- *
- * The temp file is NOT created.
- *
- * The returned pointer is to allocated memory.
- * The returned pointer is NULL if no valid name was found.
- */
- char_u *
- vim_tempname(extra_char)
- int extra_char; /* character to use in the name instead of '?' */
- {
- #ifdef USE_GUI_WIN32
- # undef USE_TMPNAM
- # define TEMPNAMELEN 256
- char szTempFile[_MAX_PATH+1];
- #endif
- #ifdef USE_TMPNAM
- char_u itmp[L_tmpnam]; /* use tmpnam() */
- #else
- char_u itmp[TEMPNAMELEN];
- #endif
- #if defined(TEMPDIRNAMES) || (!defined(USE_GUI_WIN32) && !defined(USE_TMPNAM))
- char_u *p;
- #endif
- #ifdef TEMPDIRNAMES
- static char *(tempdirs[]) = {TEMPDIRNAMES};
- static int first_dir = 0;
- int first_try = TRUE;
- int i;
- /*
- * Try a few places to put the temp file.
- * To avoid waisting time with non-existing environment variables and
- * directories, they are skipped next time.
- */
- for (i = first_dir; i < sizeof(tempdirs) / sizeof(char *); ++i)
- {
- /* expand $TMP, leave room for '/', "v?XXXXXX" and NUL */
- expand_env((char_u *)tempdirs[i], itmp, TEMPNAMELEN - 10);
- if (mch_isdir(itmp)) /* directory exists */
- {
- if (first_try)
- first_dir = i; /* start here next time */
- first_try = FALSE;
- #ifdef __EMX__
- /*
- * if $TMP contains a forward slash (perhaps because we're using
- * bash or tcsh, right Stefan?), don't add a backslash to the
- * directory before tacking on the file name; use a forward slash!
- * I first tried adding 2 backslashes, but somehow that didn't
- * work (something in the EMX system() ate them, I think).
- */
- if (vim_strchr(itmp, '/'))
- STRCAT(itmp, "/");
- else
- #endif
- STRCAT(itmp, PATHSEPSTR);
- STRCAT(itmp, TEMPNAME);
- if ((p = vim_strchr(itmp, '?')) != NULL)
- *p = extra_char;
- if (*mktemp((char *)itmp) == NUL)
- continue;
- return vim_strsave(itmp);
- }
- }
- return NULL;
- #else /* !TEMPDIRNAMES */
- # ifdef USE_GUI_WIN32
- STRCPY(itmp, "");
- GetTempPath(_MAX_PATH, szTempFile);
- if (GetTempFileName(szTempFile, "VIM", 0, itmp) == 0)
- # else
- # ifdef USE_TMPNAM
- /* tmpnam() will make its own name */
- if (*tmpnam((char *)itmp) == NUL)
- # else
- # ifdef VMS
- /* mktemp() is not working on VMS. It seems to be
- * a do-nothing function. Therefore we use tempnam().
- */
- sprintf((char *)itmp, "VIM%c", extra_char);
- p = (char_u *)tempnam("tmp:", (char *)itmp);
- if (p != NULL)
- {
- /* VMS will use '.LOG' if we don't explicitly specify an extension,
- * and VIM will then be unable to find the file later */
- STRCPY(itmp, p);
- STRCAT(itmp, ".txt");
- free(p);
- }
- else
- # else
- STRCPY(itmp, TEMPNAME);
- if ((p = vim_strchr(itmp, '?')) != NULL)
- *p = extra_char;
- if (*mktemp((char *)itmp) == NUL)
- # endif
- # endif
- # endif
- return NULL;
- # ifdef WIN32
- {
- char_u *p;
- char_u *retval;
- /* backslashes in a temp file name cause problems when filtering with
- * "sh" */
- retval = vim_strsave(itmp);
- if (*p_shcf == '-')
- for (p = retval; *p; ++p)
- if (*p == '\')
- *p = '/';
- return retval;
- }
- # else
- return vim_strsave(itmp);
- # endif
- #endif /* !TEMPDIRNAMES */
- }
- /*
- * Code for automatic commands.
- *
- * Only included when "AUTOCMD" has been defined.
- */
- #ifdef AUTOCMD
- /*
- * The autocommands are stored in a list for each event.
- * Autocommands for the same pattern, that are consecutive, are joined
- * together, to avoid having to match the pattern too often.
- * The result is an array of Autopat lists, which point to AutoCmd lists:
- *
- * first_autopat[0] --> Autopat.next --> Autopat.next --> NULL
- * Autopat.cmds Autopat.cmds
- * | |
- * V V
- * AutoCmd.next AutoCmd.next
- * | |
- * V V
- * AutoCmd.next NULL
- * |
- * V
- * NULL
- *
- * first_autopat[1] --> Autopat.next --> NULL
- * Autopat.cmds
- * |
- * V
- * AutoCmd.next
- * |
- * V
- * NULL
- * etc.
- *
- * The order of AutoCmds is important, this is the order in which they were
- * defined and will have to be executed.
- */
- typedef struct AutoCmd
- {
- char_u *cmd; /* The command to be executed (NULL
- when command has been removed) */
- char nested; /* If autocommands nest here */
- char last; /* last command in list */
- struct AutoCmd *next; /* Next AutoCmd in list */
- } AutoCmd;
- typedef struct AutoPat
- {
- int group; /* group ID */
- char_u *pat; /* pattern as typed (NULL when pattern
- has been removed) */
- char_u *reg_pat; /* pattern converted to regexp */
- char allow_dirs; /* Pattern may match whole path */
- char last; /* last pattern for apply_autocmds() */
- AutoCmd *cmds; /* list of commands to do */
- struct AutoPat *next; /* next AutoPat in AutoPat list */
- } AutoPat;
- static struct event_name
- {
- char *name; /* event name */
- EVENT_T event; /* event number */
- } event_names[] =
- {
- {"BufDelete", EVENT_BUFDELETE},
- {"BufEnter", EVENT_BUFENTER},
- {"BufFilePost", EVENT_BUFFILEPOST},
- {"BufFilePre", EVENT_BUFFILEPRE},
- {"BufLeave", EVENT_BUFLEAVE},
- {"BufNewFile", EVENT_BUFNEWFILE},
- {"BufReadPost", EVENT_BUFREADPOST},
- {"BufReadPre", EVENT_BUFREADPRE},
- {"BufRead", EVENT_BUFREADPOST},
- {"BufUnload", EVENT_BUFUNLOAD},
- {"BufWritePost", EVENT_BUFWRITEPOST},
- {"BufWritePre", EVENT_BUFWRITEPRE},
- {"BufWrite", EVENT_BUFWRITEPRE},
- {"FileAppendPost", EVENT_FILEAPPENDPOST},
- {"FileAppendPre", EVENT_FILEAPPENDPRE},
- {"FileChangedShell", EVENT_FILECHANGEDSHELL},
- {"FileEncoding", EVENT_FILEENCODING},
- {"FileReadPost", EVENT_FILEREADPOST},
- {"FileReadPre", EVENT_FILEREADPRE},
- {"FileWritePost", EVENT_FILEWRITEPOST},
- {"FileWritePre", EVENT_FILEWRITEPRE},
- {"FilterReadPost", EVENT_FILTERREADPOST},
- {"FilterReadPre", EVENT_FILTERREADPRE},
- {"FilterWritePost", EVENT_FILTERWRITEPOST},
- {"FilterWritePre", EVENT_FILTERWRITEPRE},
- {"StdinReadPost", EVENT_STDINREADPOST},
- {"StdinReadPre", EVENT_STDINREADPRE},
- {"TermChanged", EVENT_TERMCHANGED},
- {"User", EVENT_USER},
- {"VimEnter", EVENT_VIMENTER},
- {"VimLeave", EVENT_VIMLEAVE},
- {"VimLeavePre", EVENT_VIMLEAVEPRE},
- {"WinEnter", EVENT_WINENTER},
- {"WinLeave", EVENT_WINLEAVE},
- {NULL, (EVENT_T)0}
- };
- static AutoPat *first_autopat[NUM_EVENTS] =
- {
- NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL,
- NULL
- };
- /*
- * struct used to keep status while executing autocommands for an event.
- */
- typedef struct AutoPatCmd
- {
- AutoPat *curpat; /* next AutoPat to examine */
- AutoCmd *nextcmd; /* next AutoCmd to execute */
- int group; /* group being used */
- char_u *fname; /* fname to match with */
- char_u *sfname; /* sfname to match with */
- char_u *tail; /* tail of fname */
- EVENT_T event; /* current event */
- } AutoPatCmd;
- /*
- * augroups stores a list of autocmd group names.
- */
- struct growarray augroups = {0, 0, sizeof(char_u *), 10, NULL};
- #define AUGROUP_NAME(i) (((char_u **)augroups.ga_data)[i])
- /*
- * The ID of the current group. Group 0 is the default one.
- */
- #define AUGROUP_DEFAULT -1 /* default autocmd group */
- #define AUGROUP_ERROR -2 /* errornouse autocmd group */
- #define AUGROUP_ALL -3 /* all autocmd groups */
- static int current_augroup = AUGROUP_DEFAULT;
- static int au_need_clean = FALSE; /* need to delete marked patterns */
- static void show_autocmd __ARGS((AutoPat *ap, EVENT_T event));
- static void au_remove_pat __ARGS((AutoPat *ap));
- static void au_remove_cmds __ARGS((AutoPat *ap));
- static void au_cleanup __ARGS((void));
- static int au_find_group __ARGS((char_u *name));
- static int au_new_group __ARGS((char_u *name));
- static int au_find_group __ARGS((char_u *name));
- static EVENT_T event_name2nr __ARGS((char_u *start, char_u **end));
- static char_u *event_nr2name __ARGS((EVENT_T event));
- static char_u *find_end_event __ARGS((char_u *arg));
- static int event_ignored __ARGS((EVENT_T event));
- static int au_get_grouparg __ARGS((char_u **argp));
- static int do_autocmd_event __ARGS((EVENT_T event, char_u *pat, int nested, char_u *cmd, int forceit, int group));
- static int apply_autocmds_group __ARGS((EVENT_T event, char_u *fname, char_u *fname_io, int force, int group, BUF *buf));
- static char_u *getnextac __ARGS((int c, void *cookie, int indent));
- static void auto_next_pat __ARGS((AutoPatCmd *apc, int stop_at_last));
- static EVENT_T last_event;
- static int last_group;
- /*
- * Show the autocommands for one AutoPat.
- */
- static void
- show_autocmd(ap, event)
- AutoPat *ap;
- EVENT_T event;
- {
- AutoCmd *ac;
- if (got_int) /* "q" hit for "--more--" */
- return;
- if (ap->pat == NULL) /* pattern has been removed */
- return;
- msg_putchar('n');
- if (got_int) /* "q" hit for "--more--" */
- return;
- if (event != last_event || ap->group != last_group)
- {
- if (ap->group != AUGROUP_DEFAULT)
- {
- msg_puts_attr(AUGROUP_NAME(ap->group), hl_attr(HLF_T));
- msg_puts((char_u *)" ");
- }
- msg_puts_attr(event_nr2name(event), hl_attr(HLF_T));
- last_event = event;
- last_group = ap->group;
- msg_putchar('n');
- if (got_int) /* "q" hit for "--more--" */
- return;
- }
- msg_col = 4;
- msg_outtrans(ap->pat);
- for (ac = ap->cmds; ac != NULL; ac = ac->next)
- {
- if (ac->cmd != NULL) /* skip removed commands */
- {
- if (msg_col >= 14)
- msg_putchar('n');
- msg_col = 14;
- if (got_int) /* "q" hit for "--more--" */
- return;
- msg_outtrans(ac->cmd);
- if (got_int) /* "q" hit for "--more--" */
- return;
- if (ac->next != NULL)
- {
- msg_putchar('n');
- if (got_int) /* "q" hit for "--more--" */
- return;
- }
- }
- }
- }
- /*
- * Mark an autocommand pattern for deletion.
- */
- static void
- au_remove_pat(ap)
- AutoPat *ap;
- {
- vim_free(ap->pat);
- ap->pat = NULL;
- au_need_clean = TRUE;
- }
- /*
- * Mark all commands for a pattern for deletion.
- */
- static void
- au_remove_cmds(ap)
- AutoPat *ap;
- {
- AutoCmd *ac;
- for (ac = ap->cmds; ac != NULL; ac = ac->next)
- {
- vim_free(ac->cmd);
- ac->cmd = NULL;
- }
- au_need_clean = TRUE;
- }
- /*
- * Cleanup autocommands and patterns that have been deleted.
- * This is only done when not executing autocommands.
- */
- static void
- au_cleanup()
- {
- AutoPat *ap, **prev_ap;
- AutoCmd *ac, **prev_ac;
- EVENT_T event;
- if (autocmd_busy || !au_need_clean)
- return;
- /* loop over all events */
- for (event = (EVENT_T)0; (int)event < (int)NUM_EVENTS;
- event = (EVENT_T)((int)event + 1))
- {
- /* loop over all autocommand patterns */
- prev_ap = &(first_autopat[(int)event]);
- for (ap = *prev_ap; ap != NULL; ap = *prev_ap)
- {
- /* loop over all commands for this pattern */
- prev_ac = &(ap->cmds);
- for (ac = *prev_ac; ac != NULL; ac = *prev_ac)
- {
- /* remove the command if the pattern is to be deleted or when
- * the command has been marked for deletion */
- if (ap->pat == NULL || ac->cmd == NULL)
- {
- *prev_ac = ac->next;
- vim_free(ac->cmd);
- vim_free(ac);
- }
- else
- prev_ac = &(ac->next);
- }
- /* remove the pattern if it has been marked for deletion */
- if (ap->pat == NULL)
- {
- *prev_ap = ap->next;
- vim_free(ap->reg_pat);
- vim_free(ap);
- }
- else
- prev_ap = &(ap->next);
- }
- }
- au_need_clean = FALSE;
- }
- /*
- * Add an autocmd group name.
- * Return it's ID. Returns AUGROUP_ERROR for error.
- */
- static int
- au_new_group(name)
- char_u *name;
- {
- int i;
- i = au_find_group(name);
- if (i == AUGROUP_ERROR) /* the group doesn't exist yet, add it */
- {
- if (ga_grow(&augroups, 1) == FAIL)
- return AUGROUP_ERROR;
- i = augroups.ga_len;
- AUGROUP_NAME(i) = vim_strsave(name);
- if (AUGROUP_NAME(i) == NULL)
- return AUGROUP_ERROR;
- ++augroups.ga_len;
- --augroups.ga_room;
- }
- return i;
- }
- /*
- * Find the ID of an autocmd group name.
- * Return it's ID. Returns AUGROUP_ERROR for error.
- */
- static int
- au_find_group(name)
- char_u *name;
- {
- int i;
- for (i = 0; i < augroups.ga_len; ++i)
- {
- if (AUGROUP_NAME(i) != NULL && STRCMP(AUGROUP_NAME(i), name) == 0)
- return i;
- }
- return AUGROUP_ERROR;
- }
- /*
- * Implementation of the ":augroup name" command.
- */
- void
- do_augroup(arg)
- char_u *arg;
- {
- int i;
- if (STRICMP(arg, "end") == 0) /* ":aug end": back to group 0 */
- current_augroup = AUGROUP_DEFAULT;
- else if (*arg) /* ":aug xxx": switch to group xxx */
- {
- i = au_new_group(arg);
- if (i != AUGROUP_ERROR)
- current_augroup = i;
- }
- else /* ":aug": list the group names */
- {
- msg_start();
- for (i = 0; i < augroups.ga_len; ++i)
- {
- if (AUGROUP_NAME(i) != NULL)
- {
- msg_puts(AUGROUP_NAME(i));
- msg_puts((char_u *)" ");
- }
- }
- msg_clr_eos();
- msg_end();
- }
- }
- /*
- * Function given to ExpandGeneric() to obtain the list of autocommand group
- * names.
- */
- char_u *
- get_augroup_name(idx)
- int idx;
- {
- if (idx == augroups.ga_len) /* add "END" add the end */
- return (char_u *)"END";
- if (idx >= augroups.ga_len) /* end of list */
- return NULL;
- if (AUGROUP_NAME(idx) == NULL) /* skip deleted entries */
- return (char_u *)"";
- return AUGROUP_NAME(idx); /* return a name */
- }
- /*
- * Return the event number for event name "start".
- * Return NUM_EVENTS if the event name was not found.
- * Return a pointer to the next event name in "end".
- */
- static EVENT_T
- event_name2nr(start, end)
- char_u *start;
- char_u **end;
- {
- char_u *p;
- int i;
- int len;
- /* the event name ends with end of line, a blank or a comma */
- for (p = start; *p && !vim_iswhite(*p) && *p != ','; ++p)
- ;
- for (i = 0; event_names[i].name != NULL; ++i)
- {
- len = strlen(event_names[i].name);
- if (len == p - start && STRNICMP(event_names[i].name, start, len) == 0)
- break;
- }
- if (*p == ',')
- ++p;
- *end = p;
- if (event_names[i].name == NULL)
- return NUM_EVENTS;
- return event_names[i].event;
- }
- /*
- * Return the name for event "event".
- */
- static char_u *
- event_nr2name(event)
- EVENT_T event;
- {
- int i;
- for (i = 0; event_names[i].name != NULL; ++i)
- if (event_names[i].event == event)
- return (char_u *)event_names[i].name;
- return (char_u *)"Unknown";
- }
- /*
- * Scan over the events. "*" stands for all events.
- */
- static char_u *
- find_end_event(arg)
- char_u *arg;
- {
- char_u *pat;
- char_u *p;
- if (*arg == '*')
- {
- if (arg[1] && !vim_iswhite(arg[1]))
- {
- EMSG2("Illegal character after *: %s", arg);
- return NULL;
- }
- pat = arg + 1;
- }
- else
- {
- for (pat = arg; *pat && !vim_iswhite(*pat); pat = p)
- {
- if ((int)event_name2nr(pat, &p) >= (int)NUM_EVENTS)
- {
- EMSG2("No such event: %s", pat);
- return NULL;
- }
- }
- }
- return pat;
- }
- /*
- * Return TRUE if "event" is included in 'eventignore'.
- */
- static int
- event_ignored(event)
- EVENT_T event;
- {
- char_u *p = p_ei;
- if (STRICMP(p_ei, "all") == 0)
- return TRUE;
- while (*p)
- if (event_name2nr(p, &p) == event)
- return TRUE;
- return FALSE;
- }
- /*
- * Return OK when the contents of p_ei is valid, FAIL otherwise.
- */
- int
- check_ei()
- {
- char_u *p = p_ei;
- if (STRICMP(p_ei, "all") == 0)
- return OK;
- while (*p)
- if (event_name2nr(p, &p) == NUM_EVENTS)
- return FAIL;
- return OK;
- }
- /*
- * do_autocmd() -- implements the :autocmd command. Can be used in the
- * following ways:
- *
- * :autocmd <event> <pat> <cmd> Add <cmd> to the list of commands that
- * will be automatically executed for <event>
- * when editing a file matching <pat>, in
- * the current group.
- * :autocmd <event> <pat> Show the auto-commands associated with
- * <event> and <pat>.
- * :autocmd <event> Show the auto-commands associated with
- * <event>.
- * :autocmd Show all auto-commands.
- * :autocmd! <event> <pat> <cmd> Remove all auto-commands associated with
- * <event> and <pat>, and add the command
- * <cmd>, for the current group.
- * :autocmd! <event> <pat> Remove all auto-commands associated with
- * <event> and <pat> for the current group.
- * :autocmd! <event> Remove all auto-commands associated with
- * <event> for the current group.
- * :autocmd! Remove ALL auto-commands for the current
- * group.
- *
- * Multiple events and patterns may be given separated by commas. Here are
- * some examples:
- * :autocmd bufread,bufenter *.c,*.h set tw=0 smartindent noic
- * :autocmd bufleave * set tw=79 nosmartindent ic infercase
- *
- * :autocmd * *.c show all autocommands for *.c files.
- */
- void
- do_autocmd(arg, forceit)
- char_u *arg;
- int forceit;
- {
- char_u *pat;
- char_u *envpat = NULL;
- char_u *cmd;
- EVENT_T event;
- int need_free = FALSE;
- int nested = FALSE;
- int group;
- /*
- * Check for a legal group name. If not, use AUGROUP_ALL.
- */
- group = au_get_grouparg(&arg);
- if (arg == NULL) /* out of memory */
- return;
- /*
- * Scan over the events.
- * If we find an illegal name, return here, don't do anything.
- */
- pat = find_end_event(arg);
- if (pat == NULL)
- return;
- /*
- * Scan over the pattern. Put a NUL at the end.
- */
- pat = skipwhite(pat);
- cmd = pat;
- while (*cmd && (!vim_iswhite(*cmd) || cmd[-1] == '\'))
- cmd++;
- if (*cmd)
- *cmd++ = NUL;
- /* expand environment variables in the pattern */
- if (vim_strchr(pat, '$') != NULL || vim_strchr(pat, '~') != NULL)
- {
- envpat = expand_env_save(pat);
- if (envpat != NULL)
- pat = envpat;
- }
- /*
- * Check for "nested" flag.
- */
- cmd = skipwhite(cmd);
- if (*cmd != NUL && STRNCMP(cmd, "nested", 6) == 0 && vim_iswhite(cmd[6]))
- {
- nested = TRUE;
- cmd = skipwhite(cmd + 6);
- }
- /*
- * Find the start of the commands.
- * Expand <sfile> in it.
- */
- if (*cmd != NUL)
- {
- cmd = expand_sfile(cmd);
- if (cmd == NULL) /* some error */
- return;
- need_free = TRUE;
- }
- /*
- * Print header when showing autocommands.
- */
- if (!forceit && *cmd == NUL)
- {
- /* Highlight title */
- MSG_PUTS_TITLE("n--- Auto-Commands ---");
- }
- /*
- * Loop over the events.
- */
- last_event = (EVENT_T)-1; /* for listing the event name */
- last_group = AUGROUP_ERROR; /* for listing the group name */
- if (*arg == '*' || *arg == NUL)
- {
- for (event = (EVENT_T)0; (int)event < (int)NUM_EVENTS;
- event = (EVENT_T)((int)event + 1))
- if (do_autocmd_event(event, pat,
- nested, cmd, forceit, group) == FAIL)
- break;
- }
- else
- {
- while (*arg && !vim_iswhite(*arg))
- if (do_autocmd_event(event_name2nr(arg, &arg), pat,
- nested, cmd, forceit, group) == FAIL)
- break;
- }
- if (need_free)
- vim_free(cmd);
- vim_free(envpat);
- }
- /*
- * Find the group ID in a ":autocmd" or ":doautocmd" argument.
- * The "argp" argument is advanced to the following argument.
- *
- * Returns the group ID, AUGROUP_ERROR for error (out of memory).
- */
- static int
- au_get_grouparg(argp)
- char_u **argp;
- {
- char_u *group_name;
- char_u *p;
- char_u *arg = *argp;
- int group = AUGROUP_ALL;
- p = skiptowhite(arg);
- if (p > arg)
- {
- group_name = vim_strnsave(arg, (int)(p - arg));
- if (group_name == NULL) /* out of memory */
- return AUGROUP_ERROR;
- group = au_find_group(group_name);
- if (group == AUGROUP_ERROR)
- group = AUGROUP_ALL; /* no match, use all groups */
- else
- *argp = skipwhite(p); /* match, skip over group name */
- vim_free(group_name);
- }
- return group;
- }
- /*
- * do_autocmd() for one event.
- * If *pat == NUL do for all patterns.
- * If *cmd == NUL show entries.
- * If forceit == TRUE delete entries.
- * If group is not AUGROUP_ALL, only use this group.
- */
- static int
- do_autocmd_event(event, pat, nested, cmd, forceit, group)
- EVENT_T event;
- char_u *pat;
- int nested;
- char_u *cmd;
- int forceit;
- int group;
- {
- AutoPat *ap;
- AutoPat **prev_ap;
- AutoCmd *ac;
- AutoCmd **prev_ac;
- int brace_level;
- char_u *endpat;
- int len;
- /*
- * Show or delete all patterns for an event.
- */
- if (*pat == NUL)
- {
- for (ap = first_autopat[(int)event]; ap != NULL; ap = ap->next)
- {
- if (forceit) /* delete the AutoPat, if it's in the current group */
- {
- if (ap->group == (group == AUGROUP_ALL ? current_augroup
- : group))
- au_remove_pat(ap);
- }
- else if (group == AUGROUP_ALL || ap->group == group)
- show_autocmd(ap, event);
- }
- }
- /*
- * Loop through all the specified patterns.
- */
- for ( ; *pat; pat = (*endpat == ',' ? endpat + 1 : endpat))
- {
- /*
- * Find end of the pattern.
- * Watch out for a comma in braces, like "*.{obj,o}".
- */
- brace_level = 0;
- for (endpat = pat; *endpat && (*endpat != ',' || brace_level
- || endpat[-1] == '\'); ++endpat)
- {
- if (*endpat == '{')
- brace_level++;
- else if (*endpat == '}')
- brace_level--;
- }
- if (pat == endpat) /* ignore single comma */
- continue;
- /*
- * Find AutoPat entries with this pattern.
- */
- prev_ap = &first_autopat[(int)event];
- while ((ap = *prev_ap) != NULL)
- {
- if (ap->pat != NULL)
- {
- /* Accept a pattern when:
- * - a group was specified and it's that group, or a group was
- * not specified and it's the current group, or a group was
- * not specified and we are listing
- * - the length of the pattern matches
- * - the pattern matches
- */
- len = STRLEN(ap->pat);
- if ((ap->group == (group == AUGROUP_ALL ? current_augroup
- : group)
- || (group == AUGROUP_ALL && !forceit && *cmd == NUL))
- && len == endpat - pat
- && STRNCMP(pat, ap->pat, len) == 0)
- {
- /*
- * Remove existing autocommands.
- * If adding any new autocmd's for this AutoPat, don't
- * delete the pattern from the autopat list, append to
- * this list.
- */
- if (forceit)
- {
- if (*cmd != NUL && ap->next == NULL)
- {
- au_remove_cmds(ap);
- break;
- }
- au_remove_pat(ap);
- }
- /*
- * Show autocmd's for this autopat
- */
- else if (*cmd == NUL)
- show_autocmd(ap, event);
- /*
- * Add autocmd to this autopat, if it's the last one.
- */
- else if (ap->next == NULL)
- break;
- }
- }
- prev_ap = &ap->next;
- }
- /*
- * Add a new command.
- */
- if (*cmd != NUL)
- {
- /*
- * If the pattern we want to add a command to does appear at the
- * end of the list (or not is not in the list at all), add the
- * pattern at the end of the list.
- */
- if (ap == NULL)
- {
- ap = (AutoPat *)alloc((unsigned)sizeof(AutoPat));
- if (ap == NULL)
- return FAIL;
- ap->pat = vim_strnsave(pat, (int)(endpat - pat));
- if (ap->pat == NULL)
- {
- vim_free(ap);
- return FAIL;
- }
- ap->reg_pat = file_pat_to_reg_pat(pat, endpat, &ap->allow_dirs);
- if (ap->reg_pat == NULL)
- {
- vim_free(ap->pat);
- vim_free(ap);
- return FAIL;
- }
- ap->cmds = NULL;
- *prev_ap = ap;
- ap->next = NULL;
- if (group == AUGROUP_ALL)
- ap->group = current_augroup;
- else
- ap->group = group;
- }
- /*
- * Add the autocmd at the end of the AutoCmd list.
- */
- prev_ac = &(ap->cmds);
- while ((ac = *prev_ac) != NULL)
- prev_ac = &ac->next;
- ac = (AutoCmd *)alloc((unsigned)sizeof(AutoCmd));
- if (ac == NULL)
- return FAIL;
- ac->cmd = vim_strsave(cmd);
- if (ac->cmd == NULL)
- {
- vim_free(ac);
- return FAIL;
- }
- ac->next = NULL;
- *prev_ac = ac;
- ac->nested = nested;
- }
- }
- au_cleanup(); /* may really delete removed patterns/commands now */
- return OK;
- }
- /*
- * Implementation of ":doautocmd [group] event [fname]".
- * Return OK for success, FAIL for failure;
- */
- int
- do_doautocmd(arg, do_msg)
- char_u *arg;
- int do_msg; /* give message for no matching autocmds? */
- {
- char_u *fname;
- int nothing_done = TRUE;
- int group;
- /*
- * Check for a legal group name. If not, use AUGROUP_ALL.
- */
- group = au_get_grouparg(&arg);
- if (arg == NULL) /* out of memory */
- return FAIL;
- if (*arg == '*')
- {
- EMSG("Can't execute autocommands for ALL events");
- return FAIL;
- }
- /*
- * Scan over the events.
- * If we find an illegal name, return here, don't do anything.
- */
- fname = find_end_event(arg);
- if (fname == NULL)
- return FAIL;
- fname = skipwhite(fname);
- /*
- * Loop over the events.
- */
- while (*arg && !vim_iswhite(*arg))
- if (apply_autocmds_group(event_name2nr(arg, &arg),
- fname, NULL, TRUE, group, curbuf))
- nothing_done = FALSE;
- if (nothing_done && do_msg)
- MSG("No matching autocommands");
- return OK;
- }
- /*
- * ":doautoall" command: execute autocommands for each loaded buffer.
- */
- void
- do_autoall(arg)
- char_u *arg;
- {
- BUF *save_buf = NULL;
- WIN *win;
- WIN *save_curwin = NULL;
- int retval;
- FPOS save_cursor;
- linenr_t save_topline = 0;
- int len;
- save_cursor.lnum = 0; /* init for gcc */
- save_cursor.col = 0;
- /*
- * This is a bit tricky: For some commands curwin->w_buffer needs to be
- * equal to curbuf, but for some buffers there may not be a window.
- * So we change the buffer for the current window for a moment. This
- * gives problems when the autocommands make changes to the list of
- * buffers or windows...
- */
- for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next)
- {
- if (curbuf->b_ml.ml_mfp != NULL)
- {
- for (win = firstwin; win != NULL; win = win->w_next)
- if (win->w_buffer == curbuf)
- break;
- /* if there is a window for this buffer, make it the curwin */
- if (win != NULL)
- {
- save_curwin = curwin;
- curwin = win;
- }
- else
- {
- /* if there is no window for this buffer, use curwin */
- --curwin->w_buffer->b_nwindows;
- save_buf = curwin->w_buffer;
- curwin->w_buffer = curbuf;
- ++curwin->w_buffer->b_nwindows;
- /* set cursor and topline to safe values */
- save_cursor = curwin->w_cursor;
- curwin->w_cursor.lnum = 1;
- curwin->w_cursor.col = 0;
- save_topline = curwin->w_topline;
- curwin->w_topline = 1;
- }
- retval = do_doautocmd(arg, FALSE);
- do_modelines();
- if (win != NULL) /* restore curwin */
- {
- if (win_valid(save_curwin))
- curwin = save_curwin;
- }
- else /* restore buffer for curwin */
- {
- if (buf_valid(save_buf))
- {
- --curwin->w_buffer->b_nwindows;
- curwin->w_buffer = save_buf;
- ++save_buf->b_nwindows;
- if (save_cursor.lnum <= save_buf->b_ml.ml_line_count)
- {
- curwin->w_cursor = save_cursor;
- len = STRLEN(ml_get_buf(save_buf,
- curwin->w_cursor.lnum, FALSE));
- if (len == 0)
- curwin->w_cursor.col = 0;
- else if ((int)curwin->w_cursor.col >= len)
- curwin->w_cursor.col = len - 1;
- }
- else
- {
- curwin->w_cursor.lnum = save_buf->b_ml.ml_line_count;
- curwin->w_cursor.col = 0;
- }
- /* check topline < line_count, in case lines got deleted */
- if (save_topline <= save_buf->b_ml.ml_line_count)
- curwin->w_topline = save_topline;
- else
- curwin->w_topline = save_buf->b_ml.ml_line_count;
- }
- }
- if (retval == FAIL)
- break;
- }
- }
- curbuf = curwin->w_buffer;
- adjust_cursor(); /* just in case lines got deleted */
- }
- static int autocmd_nested = FALSE;
- /*
- * Execute autocommands for "event" and file name "fname".
- * Return TRUE if some commands were executed.
- */
- int
- apply_autocmds(event, fname, fname_io, force, buf)
- EVENT_T event;
- char_u *fname; /* NULL or empty means use actual file name */
- char_u *fname_io; /* fname to use for <afile> on cmdline */
- int force; /* when TRUE, ignore autocmd_busy */
- BUF *buf; /* buffer for <abuf> */
- {
- return apply_autocmds_group(event, fname, fname_io, force,
- AUGROUP_ALL, buf);
- }
- static int
- apply_autocmds_group(event, fname, fname_io, force, group, buf)
- EVENT_T event;
- char_u *fname; /* NULL or empty means use actual file name */
- char_u *fname_io; /* fname to use for <afile> on cmdline */
- int force; /* when TRUE, ignore autocmd_busy */
- int group; /* group ID, or AUGROUP_ALL */
- BUF *buf; /* buffer for <abuf> */
- {
- char_u *sfname = NULL; /* short file name */
- char_u *tail;
- int temp;
- int save_changed = curbuf->b_changed;
- BUF *old_curbuf = curbuf;
- int retval = FALSE;
- char_u *save_sourcing_name;
- char_u *save_autocmd_fname = autocmd_fname;
- int save_autocmd_bufnr = autocmd_bufnr;
- int save_autocmd_busy = autocmd_busy;
- int save_autocmd_nested = autocmd_nested;
- static int nesting = 0;
- AutoPatCmd patcmd;
- AutoPat *ap;
- #ifdef WANT_EVAL
- void *save_funccalp;
- #endif
- /*
- * When autocommands are busy, new autocommands are only executed when
- * explicitly enabled with the "nested" flag.
- */
- if (autocmd_busy && !(force || autocmd_nested))
- return retval;
- /*
- * Ignore events in 'eventignore'.
- */
- if (event_ignored(event))
- return retval;
- /*
- * Allow nesting of autocommands, but restrict the depth, because it's
- * possible to create an endless loop.
- */
- if (nesting == 10)
- {
- EMSG("autocommand nesting too deep");
- return retval;
- }
- /*
- * Check if these autocommands are disabled. Used when doing ":all" or
- * ":ball".
- */
- if ( (autocmd_no_enter &&
- (event == EVENT_WINENTER || event == EVENT_BUFENTER)) ||
- (autocmd_no_leave &&
- (event == EVENT_WINLEAVE || event == EVENT_BUFLEAVE)))
- return retval;
- /*
- * Set the file name to be used for <afile>.
- */
- if (fname_io == NULL)
- {
- if (fname != NULL && *fname != NUL)
- autocmd_fname = fname;
- else if (buf != NULL)
- autocmd_fname = buf->b_fname;
- else
- autocmd_fname = NULL;
- }
- else
- autocmd_fname = fname_io;
- if (buf == NULL)
- autocmd_bufnr = 0;
- else
- autocmd_bufnr = buf->b_fnum;
- /*
- * When the file name is NULL or empty, use the file name of buffer "buf".
- * Always use the full path of the file name to match with, in case
- * "allow_dirs" is set.
- */
- if (fname == NULL || *fname == NUL)
- {
- if (buf == NULL)
- fname = NULL;
- else
- {
- if (buf->b_sfname != NULL)
- sfname = vim_strsave(buf->b_sfname);
- fname = buf->b_ffname;
- }
- if (fname == NULL)
- fname = (char_u *)"";
- fname = vim_strsave(fname); /* make a copy, so we can change it */
- }
- else
- {
- sfname = vim_strsave(fname);
- fname = FullName_save(fname, FALSE);
- }
- if (fname == NULL) /* out of memory */
- {
- vim_free(sfname);
- return FALSE;
- }
- #ifdef BACKSLASH_IN_FILENAME
- /*
- * Replace all backslashes with forward slashes. This makes the
- * autocommand patterns portable between Unix and MS-DOS.
- */
- {
- char_u *p;
- if (sfname != NULL)
- {
- for (p = sfname; *p; ++p)
- if (*p == '\')
- *p = '/';
- }
- for (p = fname; *p; ++p)
- if (*p == '\')
- *p = '/';
- }
- #endif
- /* Don't redraw while doing auto commands. */
- temp = RedrawingDisabled;
- RedrawingDisabled = TRUE;
- save_sourcing_name = sourcing_name;
- sourcing_name = NULL; /* don't free this one */
- #ifdef WANT_EVAL
- /* Don't use local function variables, if called from a function */
- save_funccalp = save_funccal();
- #endif
- /*
- * When starting to execute autocommands, save the search patterns.
- */
- if (!autocmd_busy)
- {
- save_search_patterns();
- saveRedobuff();
- }
- /*
- * Note that we are applying autocmds. Some commands need to know.
- */
- autocmd_busy = TRUE;
- ++nesting;
- tail = gettail(fname);
- /* Find first autocommand that matches */
- patcmd.curpat = first_autopat[(int)event];
- patcmd.nextcmd = NULL;
- patcmd.group = group;
- patcmd.fname = fname;
- patcmd.sfname = sfname;
- patcmd.tail = tail;
- patcmd.event = event;
- auto_next_pat(&patcmd, FALSE);
- /* found one, start executing the autocommands */
- if (patcmd.curpat != NULL)
- {
- retval = TRUE;
- /* mark the last pattern, to avoid an endless loop when more patterns
- * are added when executing autocommands */
- for (ap = patcmd.curpat; ap->next != NULL; ap = ap->next)
- ap->last = FALSE;
- ap->last = TRUE;
- check_lnums(TRUE); /* make sure cursor and topline are valid */
- do_cmdline(NULL, getnextac, (void *)&patcmd,
- DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT);
- }
- RedrawingDisabled = temp;
- autocmd_busy = save_autocmd_busy;
- autocmd_nested = save_autocmd_nested;
- vim_free(sourcing_name);
- sourcing_name = save_sourcing_name;
- autocmd_fname = save_autocmd_fname;
- autocmd_bufnr = save_autocmd_bufnr;
- #ifdef WANT_EVAL
- restore_funccal(save_funccalp);
- #endif
- vim_free(fname);
- vim_free(sfname);
- --nesting;
- /*
- * When stopping to execute autocommands, restore the search patterns and
- * the redo buffer.
- */
- if (!autocmd_busy)
- {
- restore_search_patterns();
- restoreRedobuff();
- }
- /*
- * Some events don't set or reset the Changed flag.
- * Check if still in the same buffer!
- */
- if (curbuf == old_curbuf
- && (event == EVENT_BUFREADPOST
- || event == EVENT_BUFWRITEPOST
- || event == EVENT_FILEAPPENDPOST
- || event == EVENT_VIMLEAVE
- || event == EVENT_VIMLEAVEPRE))
- curbuf->b_changed = save_changed;
- au_cleanup(); /* may really delete removed patterns/commands now */
- return retval;
- }
- /*
- * Find next autocommand pattern that matches.
- */
- static void
- auto_next_pat(apc, stop_at_last)
- AutoPatCmd *apc;
- int stop_at_last; /* stop when 'last' flag is set */
- {
- AutoPat *ap;
- AutoCmd *cp;
- char_u *name;
- vim_free(sourcing_name);
- sourcing_name = NULL;
- for (ap = apc->curpat; ap != NULL && !got_int; ap = ap->next)
- {
- apc->curpat = NULL;
- /* only use a pattern when it has not been removed, has commands and
- * the group matches */
- if (ap->pat != NULL && ap->cmds != NULL
- && (apc->group == AUGROUP_ALL || apc->group == ap->group))
- {
- if (match_file_pat(ap->reg_pat, apc->fname, apc->sfname, apc->tail,
- ap->allow_dirs))
- {
- name = event_nr2name(apc->event);
- sourcing_name = alloc((unsigned)(STRLEN(name)
- + STRLEN(ap->pat) + 25));
- if (sourcing_name != NULL)
- {
- sprintf((char *)sourcing_name,
- "%s Auto commands for "%s"",
- (char *)name, (char *)ap->pat);
- if (p_verbose >= 8)
- smsg((char_u *)"Executing %s", sourcing_name);
- }
- apc->curpat = ap;
- apc->nextcmd = ap->cmds;
- /* mark last command */
- for (cp = ap->cmds; cp->next != NULL; cp = cp->next)
- cp->last = FALSE;
- cp->last = TRUE;
- }
- line_breakcheck();
- if (apc->curpat != NULL) /* found a match */
- break;
- }
- if (stop_at_last && ap->last)
- break;
- }
- }
- /*
- * Get next autocommand command.
- * Called by do_cmdline() to get the next line for ":if".
- * Returns allocated string, or NULL for end of autocommands.
- */
- /* ARGSUSED */
- static char_u *
- getnextac(c, cookie, indent)
- int c; /* not used */
- void *cookie;
- int indent; /* not used */
- {
- AutoPatCmd *acp = (AutoPatCmd *)cookie;
- char_u *retval;
- /* repeat until we find an autocommand to execute */
- for (;;)
- {
- /* skip removed commands */
- while (acp->nextcmd != NULL && acp->nextcmd->cmd == NULL)
- if (acp->nextcmd->last)
- acp->nextcmd = NULL;
- else
- acp->nextcmd = acp->nextcmd->next;
- if (acp->nextcmd != NULL)
- break;
- /* at end of commands, find next pattern that matches */
- if (acp->curpat->last)
- acp->curpat = NULL;
- else
- acp->curpat = acp->curpat->next;
- if (acp->curpat != NULL)
- auto_next_pat(acp, TRUE);
- if (acp->curpat == NULL)
- return NULL;
- }
- if (p_verbose >= 9)
- {
- msg_scroll = TRUE; /* always scroll up, don't overwrite */
- smsg((char_u *)"autocommand %s", acp->nextcmd->cmd);
- msg_puts((char_u *)"n"); /* don't overwrite this either */
- cmdline_row = msg_row;
- }
- retval = vim_strsave(acp->nextcmd->cmd);
- autocmd_nested = acp->nextcmd->nested;
- if (acp->nextcmd->last)
- acp->nextcmd = NULL;
- else
- acp->nextcmd = acp->nextcmd->next;
- return retval;
- }
- static int include_groups = FALSE;
- char_u *
- set_context_in_autocmd(arg, doautocmd)
- char_u *arg;
- int doautocmd; /* TRUE for :doautocmd, FALSE for :autocmd */
- {
- char_u *p;
- int group;
- /* check for a group name, skip it if present */
- include_groups = FALSE;
- group = au_get_grouparg(&arg);
- if (group == AUGROUP_ERROR)
- return NULL;
- /* skip over event name */
- for (p = arg; *p && !vim_iswhite(*p); ++p)
- if (*p == ',')
- arg = p + 1;
- if (*p == NUL)
- {
- if (group == AUGROUP_ALL)
- include_groups = TRUE;
- expand_context = EXPAND_EVENTS; /* expand event name */
- expand_pattern = arg;
- return NULL;
- }
- /* skip over pattern */
- arg = skipwhite(p);
- while (*arg && (!vim_iswhite(*arg) || arg[-1] == '\'))
- arg++;
- if (*arg)
- return arg; /* expand (next) command */
- if (doautocmd)
- expand_context = EXPAND_FILES; /* expand file names */
- else
- expand_context = EXPAND_NOTHING; /* pattern is not expanded */
- return NULL;
- }
- /*
- * Function given to ExpandGeneric() to obtain the list of event names.
- */
- char_u *
- get_event_name(idx)
- int idx;
- {
- if (idx < augroups.ga_len) /* First list group names, if wanted */
- {
- if (!include_groups || AUGROUP_NAME(idx) == NULL)
- return (char_u *)""; /* skip deleted entries */
- return AUGROUP_NAME(idx); /* return a name */
- }
- return (char_u *)event_names[idx - augroups.ga_len].name;
- }
- #endif /* AUTOCMD */
- #if defined(AUTOCMD) || defined(WILDIGNORE)
- /*
- * Try matching a filename with a pattern.
- * Used for autocommands and 'wildignore'.
- * Returns TRUE if there is a match, FALSE otherwise.
- */
- int
- match_file_pat(pattern, fname, sfname, tail, allow_dirs)
- char_u *pattern; /* pattern to match with */
- char_u *fname; /* full path of file name */
- char_u *sfname; /* short file name */
- char_u *tail; /* tail of path */
- int allow_dirs; /* allow matching with dir */
- {
- vim_regexp *prog;
- int result = FALSE;
- #ifdef WANT_FILETYPE
- int no_pattern = FALSE; /* TRUE if check is filetype only */
- char_u *type_start;
- char_u c;
- int match = FALSE;
- #endif
- #ifdef CASE_INSENSITIVE_FILENAME
- reg_ic = TRUE; /* Always ignore case */
- #else
- reg_ic = FALSE; /* Don't ever ignore case */
- #endif
- #ifdef WANT_FILETYPE
- if (*pattern == '<')
- {
- /* There is a filetype condition specified with this pattern.
- * Check the filetype matches first. If not, don't
- * bother with the pattern. (set prog = NULL)
- */
- for (type_start = pattern + 1; (c = *pattern); pattern++)
- {
- if ((c == ';' || c == '>') && match == FALSE)
- {
- *pattern = NUL; /* Terminate the string */
- match = mch_check_filetype(fname, type_start);
- *pattern = c; /* Restore the terminator */
- type_start = pattern + 1;
- }
- if (c == '>')
- break;
- }
- /* (c should never be NUL, but check anyway) */
- if (match == FALSE || c == NUL)
- prog = NULL; /* Doesn't match - don't check pat. */
- else if (*pattern == NUL)
- {
- prog = NULL; /* Vim will try to free prog later */
- no_pattern = TRUE; /* Always matches - don't check pat. */
- }
- else
- prog = vim_regcomp(pattern + 1, TRUE);/* Always use magic */
- }
- else
- prog = vim_regcomp(pattern, TRUE); /* Always use magic */
- #else
- prog = vim_regcomp(pattern, TRUE); /* Always use magic */
- #endif
- /*
- * Try for a match with the pattern with:
- * 1. the full file name, when the pattern has a '/'.
- * 2. the short file name, when the pattern has a '/'.
- * 3. the tail of the file name, when the pattern has no '/'.
- */
- if (
- #ifdef WANT_FILETYPE
- /* If the check is for a filetype only and we don't care
- * about the path then skip all the regexp stuff.
- */
- no_pattern ||
- #endif
- (prog != NULL
- && ((allow_dirs
- && (vim_regexec(prog, fname, TRUE)
- || (sfname != NULL
- && vim_regexec(prog, sfname, TRUE))))
- || (!allow_dirs
- && vim_regexec(prog, tail, TRUE)))))
- result = TRUE;
- vim_free(prog);
- return result;
- }
- #endif
- /*
- * Convert the given pattern "pat" which has shell style wildcards in it, into
- * a regular expression, and return the result in allocated memory. If there
- * is a directory path separator to be matched, then TRUE is put in
- * allow_dirs, otherwise FALSE is put there -- webb.
- *
- * If WANT_FILETYPE defined then pass initial <type> through unchanged. Eg:
- * '<html>myfile' becomes '<html>^myfile$' -- leonard.
- *
- * Returns NULL when out of memory.
- */
- char_u *
- file_pat_to_reg_pat(pat, pat_end, allow_dirs)
- char_u *pat;
- char_u *pat_end; /* first char after pattern */
- char *allow_dirs; /* Result passed back out in here */
- {
- int size;
- char_u *endp;
- char_u *reg_pat;
- char_u *p;
- int i;
- int nested = 0;
- int add_dollar = TRUE;
- #ifdef WANT_FILETYPE
- int check_length = 0;
- #endif
- if (allow_dirs != NULL)
- *allow_dirs = FALSE;
- #ifdef WANT_FILETYPE
- /* Find out how much of the string is the filetype check */
- if (*pat == '<')
- {
- /* Count chars until the next '>' */
- for (p = pat + 1; p < pat_end && *p != '>'; p++)
- ;
- if (p < pat_end)
- {
- /* Pattern is of the form <.*>.* */
- check_length = p - pat + 1;
- if (p + 1 >= pat_end)
- {
- /* The 'pattern' is a filetype check ONLY */
- reg_pat = (char_u *)alloc(check_length + 1);
- if (reg_pat != NULL)
- {
- mch_memmove(reg_pat, pat, check_length);
- reg_pat[check_length] = NUL;
- }
- return reg_pat;
- }
- }
- /* else: there was no closing '>' - assume it was a normal pattern */
- }
- pat += check_length;
- size = 2 + check_length;
- #else
- size = 2; /* '^' at start, '$' at end */
- #endif
- for (p = pat; p < pat_end; p++)
- {
- switch (*p)
- {
- case '*':
- case '.':
- case ',':
- case '{':
- case '}':
- case '~':
- #ifdef BACKSLASH_IN_FILENAME
- case '\':
- #endif
- size += 2;
- break;
- default:
- size++;
- break;
- }
- }
- reg_pat = alloc(size + 1);
- if (reg_pat == NULL)
- return NULL;
- #ifdef WANT_FILETYPE
- /* Copy the type check in to the start. */
- if (check_length)
- mch_memmove(reg_pat, pat - check_length, check_length);
- i = check_length;
- #else
- i = 0;
- #endif
- if (pat[0] == '*')
- while (pat[0] == '*' && pat < pat_end - 1)
- pat++;
- else
- reg_pat[i++] = '^';
- endp = pat_end - 1;
- if (*endp == '*')
- {
- while (endp - pat > 0 && *endp == '*')
- endp--;
- add_dollar = FALSE;
- }
- for (p = pat; *p && nested >= 0 && p <= endp; p++)
- {
- switch (*p)
- {
- case '*':
- reg_pat[i++] = '.';
- reg_pat[i++] = '*';
- break;
- case '.':
- #ifdef RISCOS
- if (allow_dirs != NULL)
- *allow_dirs = TRUE;
- /* FALLTHROUGH */
- #endif
- case '~':
- reg_pat[i++] = '\';
- reg_pat[i++] = *p;
- break;
- case '?':
- #ifdef RISCOS
- case '#':
- #endif
- reg_pat[i++] = '.';
- break;
- case '\':
- if (p[1] == NUL)
- break;
- #ifdef BACKSLASH_IN_FILENAME
- /* translate "x" to "\x", "*" to "\.*", and "?" to "\." */
- if (vim_isfilec(p[1]) || p[1] == '*' || p[1] == '?')
- {
- reg_pat[i++] = '\';
- reg_pat[i++] = '\';
- if (allow_dirs != NULL)
- *allow_dirs = TRUE;
- break;
- }
- ++p;
- #else
- if (*++p == '?')
- reg_pat[i++] = '?';
- else
- #endif
- if (*p == ',')
- reg_pat[i++] = ',';
- else
- {
- if (allow_dirs != NULL && vim_ispathsep(*p))
- *allow_dirs = TRUE;
- reg_pat[i++] = '\';
- reg_pat[i++] = *p;
- }
- break;
- case '{':
- reg_pat[i++] = '\';
- reg_pat[i++] = '(';
- nested++;
- break;
- case '}':
- reg_pat[i++] = '\';
- reg_pat[i++] = ')';
- --nested;
- break;
- case ',':
- if (nested)
- {
- reg_pat[i++] = '\';
- reg_pat[i++] = '|';
- }
- else
- reg_pat[i++] = ',';
- break;
- default:
- if (allow_dirs != NULL && vim_ispathsep(*p))
- *allow_dirs = TRUE;
- reg_pat[i++] = *p;
- break;
- }
- }
- if (add_dollar)
- reg_pat[i++] = '$';
- reg_pat[i] = NUL;
- if (nested != 0)
- {
- if (nested < 0)
- EMSG("Missing {.");
- else
- EMSG("Missing }.");
- vim_free(reg_pat);
- reg_pat = NULL;
- }
- return reg_pat;
- }