/* Lisp functions for making directory listings.
Copyright (C) 1985, 1986, 1993, 1994, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <setjmp.h>
#ifdef HAVE_PWD_H
#include <pwd.h>
#ifndef MSDOS
#define DIRENTRY struct direct
-extern DIR *opendir ();
-extern struct direct *readdir ();
+extern DIR *opendir (char *);
+extern struct direct *readdir (DIR *);
#endif /* not MSDOS */
#endif /* not SYSV_SYSTEM_DIR */
#include "blockinput.h"
/* Returns a search buffer, with a fastmap allocated and ready to go. */
-extern struct re_pattern_buffer *compile_pattern ();
+extern struct re_pattern_buffer *compile_pattern (Lisp_Object, struct re_registers *, Lisp_Object, int, int);
/* From filemode.c. Can't go in Lisp.h because of `stat'. */
-extern void filemodestring P_ ((struct stat *, char *));
+extern void filemodestring (struct stat *, char *);
/* if system does not have symbolic links, it does not have lstat.
In that case, use ordinary stat instead. */
#define lstat stat
#endif
-extern int completion_ignore_case;
-extern Lisp_Object Qcompletion_ignore_case;
-extern Lisp_Object Vcompletion_regexp_list;
extern Lisp_Object Vw32_get_true_file_attributes;
Lisp_Object Vcompletion_ignored_extensions;
Lisp_Object Qfile_attributes;
Lisp_Object Qfile_attributes_lessp;
-static int scmp P_ ((unsigned char *, unsigned char *, int));
+static int scmp (const unsigned char *, const unsigned char *, int);
\f
#ifdef WINDOWSNT
Lisp_Object
#endif
Lisp_Object
-directory_files_internal_unwind (dh)
- Lisp_Object dh;
+directory_files_internal_unwind (Lisp_Object dh)
{
DIR *d = (DIR *) XSAVE_VALUE (dh)->pointer;
BLOCK_INPUT;
In the latter case, ID_FORMAT is passed to Ffile_attributes. */
Lisp_Object
-directory_files_internal (directory, full, match, nosort, attrs, id_format)
- Lisp_Object directory, full, match, nosort;
- int attrs;
- Lisp_Object id_format;
+directory_files_internal (Lisp_Object directory, Lisp_Object full, Lisp_Object match, Lisp_Object nosort, int attrs, Lisp_Object id_format)
{
DIR *d;
int directory_nbytes;
#ifdef WINDOWSNT
if (attrs)
{
- extern Lisp_Object Qlocal;
extern int is_slow_fs (const char *);
/* Do this only once to avoid doing it (in w32.c:stat) for each
int nchars;
fullname = make_uninit_multibyte_string (nbytes, nbytes);
- bcopy (SDATA (directory), SDATA (fullname),
- directory_nbytes);
+ memcpy (SDATA (fullname), SDATA (directory),
+ directory_nbytes);
if (needsep)
SSET (fullname, directory_nbytes, DIRECTORY_SEP);
- bcopy (SDATA (name),
- SDATA (fullname) + directory_nbytes + needsep,
- len);
+ memcpy (SDATA (fullname) + directory_nbytes + needsep,
+ SDATA (name), len);
nchars = chars_in_text (SDATA (fullname), nbytes);
If NOSORT is non-nil, the list is not sorted--its order is unpredictable.
Otherwise, the list returned is sorted with `string-lessp'.
NOSORT is useful if you plan to sort the result yourself. */)
- (directory, full, match, nosort)
- Lisp_Object directory, full, match, nosort;
+ (Lisp_Object directory, Lisp_Object full, Lisp_Object match, Lisp_Object nosort)
{
Lisp_Object handler;
directory = Fexpand_file_name (directory, Qnil);
`file-attributes' for further documentation.
On MS-Windows, performance depends on `w32-get-true-file-attributes',
which see. */)
- (directory, full, match, nosort, id_format)
- Lisp_Object directory, full, match, nosort, id_format;
+ (Lisp_Object directory, Lisp_Object full, Lisp_Object match, Lisp_Object nosort, Lisp_Object id_format)
{
Lisp_Object handler;
directory = Fexpand_file_name (directory, Qnil);
}
\f
-Lisp_Object file_name_completion ();
+Lisp_Object file_name_completion (Lisp_Object file, Lisp_Object dirname, int all_flag, int ver_flag, Lisp_Object predicate);
DEFUN ("file-name-completion", Ffile_name_completion, Sfile_name_completion,
2, 3, 0,
This function ignores some of the possible completions as
determined by the variable `completion-ignored-extensions', which see. */)
- (file, directory, predicate)
- Lisp_Object file, directory, predicate;
+ (Lisp_Object file, Lisp_Object directory, Lisp_Object predicate)
{
Lisp_Object handler;
Sfile_name_all_completions, 2, 2, 0,
doc: /* Return a list of all completions of file name FILE in directory DIRECTORY.
These are all file names in directory DIRECTORY which begin with FILE. */)
- (file, directory)
- Lisp_Object file, directory;
+ (Lisp_Object file, Lisp_Object directory)
{
Lisp_Object handler;
return file_name_completion (file, directory, 1, 0, Qnil);
}
-static int file_name_completion_stat ();
+static int file_name_completion_stat (Lisp_Object dirname, DIRENTRY *dp, struct stat *st_addr);
Lisp_Object Qdefault_directory;
Lisp_Object
-file_name_completion (file, dirname, all_flag, ver_flag, predicate)
- Lisp_Object file, dirname;
- int all_flag, ver_flag;
- Lisp_Object predicate;
+file_name_completion (Lisp_Object file, Lisp_Object dirname, int all_flag, int ver_flag, Lisp_Object predicate)
{
DIR *d;
int bestmatchsize = 0;
else number of chars that match at the beginning. */
static int
-scmp (s1, s2, len)
- register unsigned char *s1, *s2;
- int len;
+scmp (const unsigned char *s1, const unsigned char *s2, int len)
{
register int l = len;
}
static int
-file_name_completion_stat (dirname, dp, st_addr)
- Lisp_Object dirname;
- DIRENTRY *dp;
- struct stat *st_addr;
+file_name_completion_stat (Lisp_Object dirname, DIRENTRY *dp, struct stat *st_addr)
{
int len = NAMLEN (dp);
int pos = SCHARS (dirname);
char *fullname = (char *) alloca (len + pos + 2);
#ifdef MSDOS
-#if __DJGPP__ > 1
/* Some fields of struct stat are *very* expensive to compute on MS-DOS,
but aren't required here. Avoid computing the following fields:
st_inode, st_size and st_nlink for directories, and the execute bits
unsigned short save_djstat_flags = _djstat_flags;
_djstat_flags = _STAT_INODE | _STAT_EXEC_MAGIC | _STAT_DIRSIZE;
-#endif /* __DJGPP__ > 1 */
#endif /* MSDOS */
- bcopy (SDATA (dirname), fullname, pos);
+ memcpy (fullname, SDATA (dirname), pos);
if (!IS_DIRECTORY_SEP (fullname[pos - 1]))
fullname[pos++] = DIRECTORY_SEP;
- bcopy (dp->d_name, fullname + pos, len);
+ memcpy (fullname + pos, dp->d_name, len);
fullname[pos + len] = 0;
#ifdef S_IFLNK
#else
value = stat (fullname, st_addr);
#ifdef MSDOS
-#if __DJGPP__ > 1
_djstat_flags = save_djstat_flags;
-#endif /* __DJGPP__ > 1 */
#endif /* MSDOS */
return value;
#endif /* S_IFLNK */
}
\f
Lisp_Object
-make_time (time)
- time_t time;
+make_time (time_t time)
{
return Fcons (make_number (time >> 16),
Fcons (make_number (time & 0177777), Qnil));
#endif
}
-/* Make an integer or float number for UID and GID, while being
- careful not to produce negative numbers due to signed integer
- overflow. */
-static Lisp_Object
-make_uid (struct stat *st)
-{
- EMACS_INT uid = st->st_uid;
-
- if (sizeof (st->st_uid) > sizeof (uid) || uid < 0 || FIXNUM_OVERFLOW_P (uid))
- return make_float ((double)st->st_uid);
- return make_number (uid);
-}
-
-static Lisp_Object
-make_gid (struct stat *st)
-{
- EMACS_INT gid = st->st_gid;
-
- if (sizeof (st->st_gid) > sizeof (gid) || gid < 0 || FIXNUM_OVERFLOW_P (gid))
- return make_float ((double)st->st_gid);
- return make_number (gid);
-}
-
DEFUN ("file-attributes", Ffile_attributes, Sfile_attributes, 1, 2, 0,
doc: /* Return a list of attributes of file FILENAME.
Value is nil if specified file cannot be opened.
ID-FORMAT specifies the preferred format of attributes uid and gid (see
-below) - valid values are 'string and 'integer. The latter is the default,
-but we plan to change that, so you should specify a non-nil value for
-ID-FORMAT if you use the returned uid or gid.
+below) - valid values are 'string and 'integer. The latter is the
+default, but we plan to change that, so you should specify a non-nil value
+for ID-FORMAT if you use the returned uid or gid.
Elements of the attribute list are:
0. t for directory, string (name linked to) for symbolic link, or nil.
On some FAT-based filesystems, only the date of last access is recorded,
so last access time will always be midnight of that day. */)
- (filename, id_format)
- Lisp_Object filename, id_format;
+ (Lisp_Object filename, Lisp_Object id_format)
{
Lisp_Object values[12];
Lisp_Object encoded;
struct stat s;
-#if defined (BSD4_2) || defined (BSD4_3)
+#ifdef BSD4_2
Lisp_Object dirname;
struct stat sdir;
-#endif
+#endif /* BSD4_2 */
char modes[10];
Lisp_Object handler;
struct gcpro gcpro1;
- EMACS_INT ino, uid, gid;
char *uname = NULL, *gname = NULL;
filename = Fexpand_file_name (filename, Qnil);
if (uname)
values[2] = DECODE_SYSTEM (build_string (uname));
else
- values[2] = make_uid (&s);
+ values[2] = make_fixnum_or_float (s.st_uid);
if (gname)
values[3] = DECODE_SYSTEM (build_string (gname));
else
- values[3] = make_gid (&s);
+ values[3] = make_fixnum_or_float (s.st_gid);
values[4] = make_time (s.st_atime);
values[5] = make_time (s.st_mtime);
values[6] = make_time (s.st_ctime);
- values[7] = make_number (s.st_size);
- /* If the size is out of range for an integer, return a float. */
- if (XINT (values[7]) != s.st_size)
- values[7] = make_float ((double)s.st_size);
+ values[7] = make_fixnum_or_float (s.st_size);
/* If the size is negative, and its type is long, convert it back to
positive. */
if (s.st_size < 0 && sizeof (s.st_size) == sizeof (long))
filemodestring (&s, modes);
values[8] = make_string (modes, 10);
-#if defined (BSD4_2) || defined (BSD4_3) /* file gid will be dir gid */
+#ifdef BSD4_2 /* file gid will be dir gid */
dirname = Ffile_name_directory (filename);
if (! NILP (dirname))
encoded = ENCODE_FILE (dirname);
values[9] = Qt;
#else /* file gid will be egid */
values[9] = (s.st_gid != getegid ()) ? Qt : Qnil;
-#endif /* BSD4_2 (or BSD4_3) */
- /* Shut up GCC warnings in FIXNUM_OVERFLOW_P below. */
- if (sizeof (s.st_ino) > sizeof (ino))
- ino = (EMACS_INT)(s.st_ino & 0xffffffff);
- else
- ino = s.st_ino;
- if (!FIXNUM_OVERFLOW_P (ino)
- && (sizeof (s.st_ino) <= sizeof (ino) || (s.st_ino & ~INTMASK) == 0))
+#endif /* not BSD4_2 */
+ if (!FIXNUM_OVERFLOW_P (s.st_ino))
/* Keep the most common cases as integers. */
- values[10] = make_number (ino);
- else if (sizeof (s.st_ino) <= sizeof (ino)
- || ((s.st_ino >> 16) & ~INTMASK) == 0)
+ values[10] = make_number (s.st_ino);
+ else if (!FIXNUM_OVERFLOW_P (s.st_ino >> 16))
/* To allow inode numbers larger than VALBITS, separate the bottom
16 bits. */
values[10] = Fcons (make_number ((EMACS_INT)(s.st_ino >> 16)),
make_number (low_ino & 0xffff)));
}
- /* Likewise for device, but don't let it become negative. We used
- to use FIXNUM_OVERFLOW_P here, but that won't catch large
- positive numbers such as 0xFFEEDDCC. */
- if ((EMACS_INT)s.st_dev < 0
- || (EMACS_INT)s.st_dev > MOST_POSITIVE_FIXNUM)
+ /* Likewise for device. */
+ if (FIXNUM_OVERFLOW_P (s.st_dev))
values[11] = Fcons (make_number (s.st_dev >> 16),
make_number (s.st_dev & 0xffff));
else
DEFUN ("file-attributes-lessp", Ffile_attributes_lessp, Sfile_attributes_lessp, 2, 2, 0,
doc: /* Return t if first arg file attributes list is less than second.
Comparison is in lexicographic order and case is significant. */)
- (f1, f2)
- Lisp_Object f1, f2;
+ (Lisp_Object f1, Lisp_Object f2)
{
return Fstring_lessp (Fcar (f1), Fcar (f2));
}
\f
void
-syms_of_dired ()
+syms_of_dired (void)
{
- Qdirectory_files = intern ("directory-files");
- Qdirectory_files_and_attributes = intern ("directory-files-and-attributes");
- Qfile_name_completion = intern ("file-name-completion");
- Qfile_name_all_completions = intern ("file-name-all-completions");
- Qfile_attributes = intern ("file-attributes");
- Qfile_attributes_lessp = intern ("file-attributes-lessp");
- Qdefault_directory = intern ("default-directory");
+ Qdirectory_files = intern_c_string ("directory-files");
+ Qdirectory_files_and_attributes = intern_c_string ("directory-files-and-attributes");
+ Qfile_name_completion = intern_c_string ("file-name-completion");
+ Qfile_name_all_completions = intern_c_string ("file-name-all-completions");
+ Qfile_attributes = intern_c_string ("file-attributes");
+ Qfile_attributes_lessp = intern_c_string ("file-attributes-lessp");
+ Qdefault_directory = intern_c_string ("default-directory");
staticpro (&Qdirectory_files);
staticpro (&Qdirectory_files_and_attributes);
HCoop / bpt / emacs.git / blobdiff