-;;; paths.el --- define pathnames for use by various Emacs commands.
+;;; paths.el --- define pathnames for use by various Emacs commands -*- no-byte-compile: t -*-
-;; Copyright (C) 1986, 1988 Free Software Foundation, Inc.
+;; Copyright (C) 1986, 1988, 1994, 1999, 2000, 2002, 2003,
+;; 2004, 2005, 2006 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: internal
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
+;; Docstrings in this file should, where reasonable, follow the
+;; conventions described in bindings.el, so that they get put in the
+;; DOC file rather than in memory.
+
+(defun prune-directory-list (dirs &optional keep reject)
+ "Returns a copy of DIRS with all non-existent directories removed.
+The optional argument KEEP is a list of directories to retain even if
+they don't exist, and REJECT is a list of directories to remove from
+DIRS, even if they exist; REJECT takes precedence over KEEP.
+
+Note that membership in REJECT and KEEP is checked using simple string
+comparison."
+ (apply #'nconc
+ (mapcar (lambda (dir)
+ (and (not (member dir reject))
+ (or (member dir keep) (file-directory-p dir))
+ (list dir)))
+ dirs)))
+
(defvar Info-default-directory-list
- (let ((start (list "/usr/local/info/"
- "/usr/local/lib/info/"))
- (configdir (file-name-as-directory configure-info-directory)))
- (or (member configdir start)
- (setq start (nconc start (list configdir))))
- (or (member (expand-file-name "../info/" data-directory) start)
- (setq start
- (nconc start
- (list (expand-file-name "../info/" data-directory)))))
- start)
- "List of directories to search for Info documentation files.")
-
-(defvar news-path "/usr/spool/news/"
+ (let* ((config-dir
+ (file-name-as-directory configure-info-directory))
+ (config
+ (list config-dir))
+ (unpruned-prefixes
+ ;; Directory trees that may not exist at installation time, and
+ ;; so shouldn't be pruned based on existance.
+ '("/usr/local/"))
+ (prefixes
+ ;; Directory trees in which to look for info subdirectories
+ (prune-directory-list '("/usr/local/" "/usr/" "/opt/" "/")
+ unpruned-prefixes))
+ (suffixes
+ ;; Subdirectories in each directory tree that may contain info
+ ;; directories.
+ '("" "share/" "gnu/" "gnu/lib/" "gnu/lib/emacs/"
+ "emacs/" "lib/" "lib/emacs/"))
+ (standard-info-dirs
+ (apply #'nconc
+ (mapcar (lambda (pfx)
+ (let ((dirs
+ (mapcar (lambda (sfx)
+ (concat pfx sfx "info/"))
+ suffixes)))
+ (if (member pfx unpruned-prefixes)
+ dirs
+ (prune-directory-list dirs config))))
+ prefixes))))
+ ;; If $(prefix)/info is not one of the standard info directories,
+ ;; they are probably installing an experimental version of Emacs,
+ ;; so make sure that experimental version's Info files override
+ ;; the ones in standard directories.
+ (if (member config-dir standard-info-dirs)
+ (nconc standard-info-dirs config)
+ (cons config-dir standard-info-dirs)))
+ "Default list of directories to search for Info documentation files.
+They are searched in the order they are given in the list.
+Therefore, the directory of Info files that come with Emacs
+normally should come last (so that local files override standard ones),
+unless Emacs is installed into a non-standard directory. In the latter
+case, the directory of Info files that come with Emacs should be
+first in this list.
+
+Once Info is started, the list of directories to search
+comes from the variable `Info-directory-list'.
+This variable `Info-default-directory-list' is used as the default
+for initializing `Info-directory-list' when Info is started, unless
+the environment variable INFOPATH is set.")
+
+(defvar news-directory
+ (if (file-exists-p "/usr/spool/news/")
+ "/usr/spool/news/"
+ "/var/spool/news/")
"The root directory below which all news files are stored.")
+(defvaralias 'news-path 'news-directory)
(defvar news-inews-program
(cond ((file-exists-p "/usr/bin/inews") "/usr/bin/inews")
((file-exists-p "/usr/local/inews") "/usr/local/inews")
((file-exists-p "/usr/local/bin/inews") "/usr/local/bin/inews")
+ ((file-exists-p "/usr/contrib/lib/news/inews") "/usr/contrib/lib/news/inews")
((file-exists-p "/usr/lib/news/inews") "/usr/lib/news/inews")
(t "inews"))
"Program to post news.")
-(defvar gnus-default-nntp-server ""
- ;; set this to your local server
- "The name of the host running an NNTP server.
-If it is a string such as \":DIRECTORY\", then ~/DIRECTORY
-is used as a news spool. `gnus-nntp-server' is initialised from NNTPSERVER
-environment variable or, if none, this value.")
+;; set this to your local server
+(defvar gnus-default-nntp-server "" "\
+The name of the host running an NNTP server.
+The null string means use the local host as the server site.")
(defvar gnus-nntp-service "nntp"
"NNTP service name, usually \"nntp\" or 119).
Go to a local news spool if its value is nil, in which case `gnus-nntp-server'
should be set to `(system-name)'.")
-(defvar gnus-local-domain nil
- "*Your domain name without a host name: for example, \"ai.mit.edu\".
-The DOMAINNAME environment variable is used instead if defined.
-If the function `system-name' returns a fully qualified domain name,
-there is no need to set this variable.")
-
-(defvar gnus-local-organization nil
- "*The name of your organization, as a string.
+(defvar gnus-local-organization nil "\
+*The name of your organization, as a string.
The `ORGANIZATION' environment variable is used instead if defined.")
-(defvar mh-progs
- (cond ((file-directory-p "/usr/bin/mh/") "/usr/bin/mh/") ;Ultrix 4.2
- ((file-directory-p "/usr/new/mh/") "/usr/new/mh/") ;Ultrix <4.2
- ((file-directory-p "/usr/local/bin/mh/") "/usr/local/bin/mh/")
- ((file-directory-p "/usr/local/mh/") "/usr/local/mh/")
- (t "/usr/local/bin/"))
- "Directory containing MH commands.")
-
-(defvar mh-lib
- (cond ((file-directory-p "/usr/lib/mh/") "/usr/lib/mh/") ;Ultrix 4.2
- ((file-directory-p "/usr/new/lib/mh/") "/usr/new/lib/mh/") ;Ultrix <4.2
- ((file-directory-p "/usr/local/lib/mh/") "/usr/local/lib/mh/")
- (t "/usr/local/bin/mh/"))
- "Directory of MH library.")
-
-(defvar rmail-file-name "~/RMAIL"
- "Name of user's primary mail file.")
-
-(defvar gnus-startup-file "~/.newsrc"
- "The file listing groups to which user is subscribed.
-Will use `gnus-startup-file'-SERVER instead if exists.")
-
-(defconst rmail-spool-directory
- (cond ((memq system-type '(dgux hpux usg-unix-v unisoft-unix rtu irix))
- "/usr/mail/")
- ((eq system-type 'netbsd)
+(defcustom rmail-file-name "~/RMAIL"
+ "*Name of user's primary mail file."
+ :type 'string
+ :group 'rmail
+ :version "21.1")
+
+(defvar rmail-spool-directory
+ (cond ((string-match "^[^-]+-[^-]+-sco3.2v4" system-configuration)
+ "/usr/spool/mail/")
+ ;; On The Bull DPX/2 /usr/spool/mail is used although
+ ;; it is usg-unix-v.
+ ((string-match "^m68k-bull-sysv3" system-configuration)
+ "/usr/spool/mail/")
+ ;; SVR4 and recent BSD are said to use this.
+ ;; Rather than trying to know precisely which systems use it,
+ ;; let's assume this dir is never used for anything else.
+ ((file-exists-p "/var/mail")
"/var/mail/")
+ ;; Many GNU/Linux systems use this name.
+ ((file-exists-p "/var/spool/mail")
+ "/var/spool/mail/")
+ ((memq system-type '(dgux hpux usg-unix-v unisoft-unix rtu irix))
+ "/usr/mail/")
(t "/usr/spool/mail/"))
"Name of directory used by system mailer for delivering new mail.
Its name should end with a slash.")
-(defconst sendmail-program
+(defcustom sendmail-program
(cond
- ((file-exists-p "/usr/lib/sendmail") "/usr/lib/sendmail")
((file-exists-p "/usr/sbin/sendmail") "/usr/sbin/sendmail")
+ ((file-exists-p "/usr/lib/sendmail") "/usr/lib/sendmail")
((file-exists-p "/usr/ucblib/sendmail") "/usr/ucblib/sendmail")
(t "fakemail")) ;In ../etc, to interface to /bin/mail.
- "Program used to send messages.")
+ "Program used to send messages."
+ :group 'mail
+ :type 'file)
-(defconst term-file-prefix (if (eq system-type 'vax-vms) "[.term]" "term/")
- "If non-nil, Emacs startup does (load (concat term-file-prefix (getenv \"TERM\")))
+(defcustom remote-shell-program
+ (cond
+ ;; Some systems use rsh for the remote shell; others use that name for the
+ ;; restricted shell and use remsh for the remote shell. Let's try to guess
+ ;; based on what we actually find out there. The restricted shell is
+ ;; almost certainly in /bin or /usr/bin, so it's probably safe to assume
+ ;; that an rsh found elsewhere is the remote shell program. The converse
+ ;; is not true: /usr/bin/rsh could be either one, so check that last.
+ ((file-exists-p "/usr/ucb/remsh") "/usr/ucb/remsh")
+ ((file-exists-p "/usr/bsd/remsh") "/usr/bsd/remsh")
+ ((file-exists-p "/bin/remsh") "/bin/remsh")
+ ((file-exists-p "/usr/bin/remsh") "/usr/bin/remsh")
+ ((file-exists-p "/usr/local/bin/remsh") "/usr/local/bin/remsh")
+ ((file-exists-p "/usr/ucb/rsh") "/usr/ucb/rsh")
+ ((file-exists-p "/usr/bsd/rsh") "/usr/bsd/rsh")
+ ((file-exists-p "/usr/local/bin/rsh") "/usr/local/bin/rsh")
+ ((file-exists-p "/usr/bin/rcmd") "/usr/bin/rcmd")
+ ((file-exists-p "/bin/rcmd") "/bin/rcmd")
+ ((file-exists-p "/bin/rsh") "/bin/rsh")
+ ((file-exists-p "/usr/bin/rsh") "/usr/bin/rsh")
+ (t "rsh"))
+ "File name for remote-shell program (often rsh or remsh)."
+ :group 'environment
+ :type 'file)
+
+(defvar term-file-prefix (if (eq system-type 'vax-vms) "[.term]" "term/") "\
+If non-nil, Emacs startup does (load (concat term-file-prefix (getenv \"TERM\")))
You may set this variable to nil in your `.emacs' file if you do not wish
the terminal-initialization file to be loaded.")
-;; Solaris 2 has both of these files; prefer /usr/ucb/man
-;; because the other has nonstandard argument conventions.
-(defconst manual-program (if (file-exists-p "/usr/ucb/man")
- "/usr/ucb/man" "/usr/bin/man")
- "Program to run to print man pages.")
-
-(defconst abbrev-file-name
+(defvar abbrev-file-name
(if (eq system-type 'vax-vms)
"~/abbrev.def"
- "~/.abbrev_defs")
+ (convert-standard-filename "~/.abbrev_defs"))
"*Default name of file to read abbrevs from.")
+;;; arch-tag: bae27ffb-9944-4c87-b569-30d4635a99e1
;;; paths.el ends here