/* Lisp functions for making directory listings.
- Copyright (C) 1985, 1986 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1993 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <sys/types.h>
#include <sys/stat.h>
-#include "config.h"
+#include <config.h>
+
+#ifdef VMS
+#include <string.h>
+#include <rms.h>
+#include <rmsdef.h>
+#endif
+
+/* The d_nameln member of a struct dirent includes the '\0' character
+ on some systems, but not on others. What's worse, you can't tell
+ at compile-time which one it will be, since it really depends on
+ the sort of system providing the filesystem you're reading from,
+ not the system you are running on. Paul Eggert
+ <eggert@bi.twinsun.com> says this occurs when Emacs is running on a
+ SunOS 4.1.2 host, reading a directory that is remote-mounted from a
+ Solaris 2.1 host and is in a native Solaris 2.1 filesystem.
+
+ Since applying strlen to the name always works, we'll just do that. */
+#define NAMLEN(p) strlen (p->d_name)
#ifdef SYSV_SYSTEM_DIR
#include <dirent.h>
#define DIRENTRY struct dirent
-#define NAMLEN(p) strlen (p->d_name)
-#else
+#else /* not SYSV_SYSTEM_DIR */
#ifdef NONSYSTEM_DIR_LIBRARY
#include "ndir.h"
#else /* not NONSYSTEM_DIR_LIBRARY */
+#ifdef MSDOS
+#include <dirent.h>
+#else
#include <sys/dir.h>
+#endif
#endif /* not NONSYSTEM_DIR_LIBRARY */
+#ifndef MSDOS
#define DIRENTRY struct direct
-#define NAMLEN(p) p->d_namlen
extern DIR *opendir ();
extern struct direct *readdir ();
+#endif /* not MSDOS */
+#endif /* not SYSV_SYSTEM_DIR */
+
+#ifdef MSDOS
+#define DIRENTRY_NONEMPTY(p) ((p)->d_name[0] != 0)
+#else
+#define DIRENTRY_NONEMPTY(p) ((p)->d_ino)
#endif
#include "lisp.h"
#include "regex.h"
+/* A search buffer, with a fastmap allocated and ready to go. */
+extern struct re_pattern_buffer searchbuf;
+
#define min(a, b) ((a) < (b) ? (a) : (b))
/* if system does not have symbolic links, it does not have lstat.
#define lstat stat
#endif
+extern int completion_ignore_case;
+extern Lisp_Object Ffind_file_name_handler ();
+
Lisp_Object Vcompletion_ignored_extensions;
Lisp_Object Qcompletion_ignore_case;
+
+Lisp_Object Qdirectory_files;
+Lisp_Object Qfile_name_completion;
+Lisp_Object Qfile_name_all_completions;
+Lisp_Object Qfile_attributes;
\f
DEFUN ("directory-files", Fdirectory_files, Sdirectory_files, 1, 4, 0,
"Return a list of names of files in DIRECTORY.\n\
{
DIR *d;
int length;
- Lisp_Object list, name;
+ Lisp_Object list, name, dirfilename;
+ Lisp_Object handler;
+
+ /* If the file name has special constructs in it,
+ call the corresponding file handler. */
+ handler = Ffind_file_name_handler (dirname);
+ if (!NILP (handler))
+ {
+ Lisp_Object args[6];
+
+ args[0] = handler;
+ args[1] = Qdirectory_files;
+ args[2] = dirname;
+ args[3] = full;
+ args[4] = match;
+ args[5] = nosort;
+ return Ffuncall (6, args);
+ }
+
+ {
+ struct gcpro gcpro1, gcpro2;
+
+ /* Because of file name handlers, these functions might call
+ Ffuncall, and cause a GC. */
+ GCPRO1 (match);
+ dirname = Fexpand_file_name (dirname, Qnil);
+ UNGCPRO;
+ GCPRO2 (match, dirname);
+ dirfilename = Fdirectory_file_name (dirname);
+ UNGCPRO;
+ }
if (!NILP (match))
{
catching and signalling our own errors, we just call
compile_pattern to do the work for us. */
#ifdef VMS
- compile_pattern (match, &searchbuf, 0
+ compile_pattern (match, &searchbuf, 0,
buffer_defaults.downcase_table->contents);
#else
compile_pattern (match, &searchbuf, 0, 0);
#endif
}
- dirname = Fexpand_file_name (dirname, Qnil);
- if (!(d = opendir (XSTRING (Fdirectory_file_name (dirname))->data)))
+ /* Now searchbuf is the compiled form of MATCH; don't call anything
+ which might compile a new regexp until we're done with the loop! */
+
+ /* Do this opendir after anything which might signal an error; if
+ an error is signalled while the directory stream is open, we
+ have to make sure it gets closed, and setting up an
+ unwind_protect to do so would be a pain. */
+ d = opendir (XSTRING (dirfilename)->data);
+ if (! d)
report_file_error ("Opening directory", Fcons (dirname, Qnil));
list = Qnil;
if (!dp) break;
len = NAMLEN (dp);
- if (dp->d_ino)
+ if (DIRENTRY_NONEMPTY (dp))
{
if (NILP (match)
|| (0 <= re_search (&searchbuf, dp->d_name, len, 0, len, 0)))
(file, dirname)
Lisp_Object file, dirname;
{
+ Lisp_Object handler;
/* Don't waste time trying to complete a null string.
Besides, this case happens when user is being asked for
a directory name and has supplied one ending in a /.
even if there are some unique characters in that directory. */
if (XTYPE (file) == Lisp_String && XSTRING (file)->size == 0)
return file;
+
+ /* If the file name has special constructs in it,
+ call the corresponding file handler. */
+ handler = Ffind_file_name_handler (dirname);
+ if (!NILP (handler))
+ return call3 (handler, Qfile_name_completion, file, dirname);
+
return file_name_completion (file, dirname, 0, 0);
}
(file, dirname)
Lisp_Object file, dirname;
{
- return file_name_completion (file, dirname, 1, 0);
-}
+ Lisp_Object handler;
-#ifdef VMS
+ /* If the file name has special constructs in it,
+ call the corresponding file handler. */
+ handler = Ffind_file_name_handler (dirname);
+ if (!NILP (handler))
+ return call3 (handler, Qfile_name_all_completions, file, dirname);
-DEFUN ("file-name-all-versions", Ffile_name_all_versions,
- Sfile_name_all_versions, 2, 2, 0,
- "Return a list of all versions of file name FILE in directory DIR.")
- (file, dirname)
- Lisp_Object file, dirname;
-{
- return file_name_completion (file, dirname, 1, 1);
+ return file_name_completion (file, dirname, 1, 0);
}
-#endif /* VMS */
-
Lisp_Object
file_name_completion (file, dirname, all_flag, ver_flag)
Lisp_Object file, dirname;
CHECK_STRING (file, 0);
#endif /* not VMS */
+#ifdef FILE_SYSTEM_CASE
+ file = FILE_SYSTEM_CASE (file);
+#endif
dirname = Fexpand_file_name (dirname, Qnil);
bestmatch = Qnil;
if (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
goto quit;
- if (!dp->d_ino
+ if (! DIRENTRY_NONEMPTY (dp)
|| len < XSTRING (file)->size
|| 0 <= scmp (dp->d_name, XSTRING (file)->data,
XSTRING (file)->size))
matchsize = scmp(p1, p2, compare);
if (matchsize < 0)
matchsize = compare;
- /* If this dirname all matches,
- see if implicit following slash does too. */
+ if (completion_ignore_case)
+ {
+ /* If this is an exact match except for case,
+ use it as the best match rather than one that is not
+ an exact match. This way, we get the case pattern
+ of the actual match. */
+ if ((matchsize == len
+ && matchsize + !!directoryp
+ < XSTRING (bestmatch)->size)
+ ||
+ /* If there is no exact match ignoring case,
+ prefer a match that does not change the case
+ of the input. */
+ (((matchsize == len)
+ ==
+ (matchsize + !!directoryp
+ == XSTRING (bestmatch)->size))
+ /* If there is more than one exact match aside from
+ case, and one of them is exact including case,
+ prefer that one. */
+ && !bcmp (p2, XSTRING (file)->data, XSTRING (file)->size)
+ && bcmp (p1, XSTRING (file)->data, XSTRING (file)->size)))
+ {
+ bestmatch = make_string (dp->d_name, len);
+ if (directoryp)
+ bestmatch = Ffile_name_as_directory (bestmatch);
+ }
+ }
+
+ /* If this dirname all matches, see if implicit following
+ slash does too. */
if (directoryp
&& compare == matchsize
&& bestmatchsize > matchsize
&& p1[matchsize] == '/')
matchsize++;
- bestmatchsize = min (matchsize, bestmatchsize);
+ bestmatchsize = matchsize;
}
}
}
bcopy (dp->d_name, fullname + pos, len);
fullname[pos + len] = 0;
+#ifdef S_IFLNK
+ return lstat (fullname, st_addr);
+#else
return stat (fullname, st_addr);
+#endif
}
\f
+#ifdef VMS
+
+DEFUN ("file-name-all-versions", Ffile_name_all_versions,
+ Sfile_name_all_versions, 2, 2, 0,
+ "Return a list of all versions of file name FILE in directory DIR.")
+ (file, dirname)
+ Lisp_Object file, dirname;
+{
+ return file_name_completion (file, dirname, 1, 1);
+}
+
+DEFUN ("file-version-limit", Ffile_version_limit, Sfile_version_limit, 1, 1, 0,
+ "Return the maximum number of versions allowed for FILE.\n\
+Returns nil if the file cannot be opened or if there is no version limit.")
+ (filename)
+ Lisp_Object filename;
+{
+ Lisp_Object retval;
+ struct FAB fab;
+ struct RAB rab;
+ struct XABFHC xabfhc;
+ int status;
+
+ filename = Fexpand_file_name (filename, Qnil);
+ fab = cc$rms_fab;
+ xabfhc = cc$rms_xabfhc;
+ fab.fab$l_fna = XSTRING (filename)->data;
+ fab.fab$b_fns = strlen (fab.fab$l_fna);
+ fab.fab$l_xab = (char *) &xabfhc;
+ status = sys$open (&fab, 0, 0);
+ if (status != RMS$_NORMAL) /* Probably non-existent file */
+ return Qnil;
+ sys$close (&fab, 0, 0);
+ if (xabfhc.xab$w_verlimit == 32767)
+ return Qnil; /* No version limit */
+ else
+ return make_number (xabfhc.xab$w_verlimit);
+}
+
+#endif /* VMS */
+\f
Lisp_Object
make_time (time)
int time;
First integer has high-order 16 bits of time, second has low 16 bits.\n\
5. Last modification time, likewise.\n\
6. Last status change time, likewise.\n\
- 7. Size in bytes.\n\
+ 7. Size in bytes (-1, if number is out of range).\n\
8. File modes, as a string of ten letters or dashes as in ls -l.\n\
9. t iff file's gid would change if file were deleted and recreated.\n\
10. inode number.\n\
11. Device number.\n\
\n\
-If file does not exists, returns nil.")
+If file does not exist, returns nil.")
(filename)
Lisp_Object filename;
{
struct stat s;
struct stat sdir;
char modes[10];
+ Lisp_Object handler;
filename = Fexpand_file_name (filename, Qnil);
+
+ /* If the file name has special constructs in it,
+ call the corresponding file handler. */
+ handler = Ffind_file_name_handler (filename);
+ if (!NILP (handler))
+ return call2 (handler, Qfile_attributes, filename);
+
if (lstat (XSTRING (filename)->data, &s) < 0)
return Qnil;
+#ifdef MSDOS
+ {
+ char *tmpnam = XSTRING (Ffile_name_nondirectory (filename))->data;
+ int l = strlen (tmpnam);
+
+ if (l >= 5
+ && S_ISREG (s.st_mode)
+ && (stricmp (&tmpnam[l - 4], ".com") == 0
+ || stricmp (&tmpnam[l - 4], ".exe") == 0
+ || stricmp (&tmpnam[l - 4], ".bat") == 0))
+ {
+ s.st_mode |= S_IEXEC;
+ }
+ }
+#endif /* MSDOS */
+
switch (s.st_mode & S_IFMT)
{
default:
values[4] = make_time (s.st_atime);
values[5] = make_time (s.st_mtime);
values[6] = make_time (s.st_ctime);
- /* perhaps we should set this to most-positive-fixnum if it is too large? */
values[7] = make_number (s.st_size);
+ /* If the size is out of range, give back -1. */
+ if (XINT (values[7]) != s.st_size)
+ XSETINT (values[7], -1);
filemodestring (&s, modes);
values[8] = make_string (modes, 10);
#ifdef BSD4_3 /* Gross kludge to avoid lack of "#if defined(...)" in VMS */
-#define BSD4_2 /* A new meaning to the term `backwards compatability' */
+#define BSD4_2 /* A new meaning to the term `backwards compatibility' */
#endif
#ifdef BSD4_2 /* file gid will be dir gid */
dirname = Ffile_name_directory (filename);
- if (dirname != Qnil && stat (XSTRING (dirname)->data, &sdir) == 0)
+ if (! NILP (dirname) && stat (XSTRING (dirname)->data, &sdir) == 0)
values[9] = (sdir.st_gid != s.st_gid) ? Qt : Qnil;
else /* if we can't tell, assume worst */
values[9] = Qt;
\f
syms_of_dired ()
{
+ Qdirectory_files = intern ("directory-files");
+ Qfile_name_completion = intern ("file-name-completion");
+ Qfile_name_all_completions = intern ("file-name-all-completions");
+ Qfile_attributes = intern ("file-attributes");
+
defsubr (&Sdirectory_files);
defsubr (&Sfile_name_completion);
#ifdef VMS
defsubr (&Sfile_name_all_versions);
+ defsubr (&Sfile_version_limit);
#endif /* VMS */
defsubr (&Sfile_name_all_completions);
defsubr (&Sfile_attributes);
HCoop / bpt / emacs.git / blobdiff