+;;; fsf-compat-unicode.el --- Provide the FSF's Mule UCS subsets in XEmacs.
+;; Copyright (C) 2006 by Free Software Foundation, Inc.
+;; Author: Aidan Kehoe <email@example.com>
+;; Keywords: Unicode, Mule
+;; This file is part of XEmacs.
+;; XEmacs is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; XEmacs is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; General Public License for more details.
+;; You should have received a copy of the GNU General Public License
+;; along with XEmacs; see the file COPYING. If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;;; Synched up with: Not in FSF
+;;; Only for 21.5 and newer.
+(unless (and (fboundp 'encode-char)
+ (eq #x31C (with-fboundp '(encode-char decode-char)
+ (encode-char (decode-char 'ucs #x31C) 'ucs))))
+ (error "Unicode support needed for this file not available!"))
+ (mule-to-unicode r0 r1)
+ "CCL program to transform Mule characters to UCS-2.")
+(defun fsf-compat-init-mule-unicode-charsets ()
+ "Make some Mule character sets that the FSF uses available in XEmacs.
+These character sets cover some Unicode code space explicitly; we use a
+different solution to the same problem, so you should only need these
+character sets if you're editing FSF source. "
+ for (first-ucs last-ucs final) in '((#x0100 #x24FF ?1)
+ (intern (format "mule-unicode-%04x-%04x"
+ (make-charset charset-symbol
+ "Unicode subset (U+%04X..U+%04X) for FSF compatibility."
+ 'registries ["iso10646-1"]
+ 'short-name (format "Unicode subset %c" final)
+ 'long-name (format "Unicode subset (U+%04X..U+%04X)"
+ 'ccl-program 'fsf-compat-ccl-encode-to-ucs-2))
+ ;; The names of the character sets lie, at least as of GNU Emacs
+ ;; 184.108.40.206. The difference appears to be that they keep assigning
+ ;; code points until the end of the 96x96 space of the character sets.
+ (loop for ku from 32 to 127 do
+ (loop for ten from 32 to 127 do
+ (set-unicode-conversion (make-char charset-symbol ku ten) first-ucs)
+;; The following code creates a form, which, when evaluated in GNU Emacs,
+;; checks our compatibility with their three character sets.
+; (insert "(require 'cl)\n\n(assert\n (and\n")
+; for charset-symbol in '(mule-unicode-2500-33ff
+; (loop for ku from 32 to 127 do
+; (loop for ten from 32 to 127 do
+; " (eq (encode-char (make-char '%s %d %d) 'ucs) #x%04X)\n"
+; (encode-char (make-char charset-symbol ku ten) 'ucs))))))
+; (insert " ) nil \"We're incompatible with the FSF!\")"))
+;;; end fsf-compat-unicode.el