(locale-translation-file-name): Prefer X-related names

to the name used by GNU/Linux sans X.  Set to nil if no file found.
(command-line): Use locale-translation-file-name if it is not nil,
instead of testing for its existence again.
regexp-quote the ctype before using it in a regexp.
Allow a colon to appear after the ctype in the aliases file,
as is done in X11R6.4.

diff --git a/lisp/startup.el b/lisp/startup.el
index 87aa10d..4ce1193 100644 (file)
--- a/lisp/startup.el
+++ b/lisp/startup.el
@@ -329,8 +329,19 @@ from being initialized."
                 string)
   :group 'auto-save)
 
-(defvar locale-translation-file-name "/usr/share/locale/locale.alias"
-  "*File name for the system's file of locale-name aliases.")
+(defvar locale-translation-file-name
+  (let ((files '("/usr/lib/X11/locale/locale.alias" ; e.g. X11R6.4
+                "/usr/X11R6/lib/X11/locale/locale.alias" ; e.g. RedHat 4.2
+                "/usr/openwin/lib/locale/locale.alias" ; e.g. Solaris 2.6
+                ;;
+                ;; The following name appears after the X-related names above,
+                ;; since the X-related names are what X actually uses.
+                "/usr/share/locale/locale.alias" ; GNU/Linux sans X
+                )))
+    (while (and files (not (file-exists-p (car files))))
+      (setq files (cdr files)))
+    (car files))
+  "*File name for the system's file of locale-name aliases, or nil if none.")
 
 (defvar init-file-debug nil)
 
@@ -505,11 +516,12 @@ or `CVS', and any subdirectory that contains a file named `.nosearch'."
     ;; Translate "swedish" into "sv_SE.ISO-8859-1", and so on,
     ;; using the translation file that GNU/Linux systems have.
     (and ctype
+        locale-translation-file-name
         (not (string-match iso-8859-n-locale-regexp ctype))
-        (file-exists-p locale-translation-file-name)
         (with-temp-buffer
           (insert-file-contents locale-translation-file-name)
-          (if (re-search-forward (concat "^" ctype "[ \t]+") nil t)
+          (if (re-search-forward
+               (concat "^" (regexp-quote ctype) ":?[ \t]+") nil t)
               (setq ctype (buffer-substring (point)
                                             (progn (end-of-line) (point)))))))
     ;; Now see if the locale specifies an ISO 8859 character set.