view lisp/mule/iso-with-esc.el @ 4549:68d1ca56cffa

First part of interactive checks that coding systems encode regions. 2008-01-21 Aidan Kehoe <kehoea@parhasard.net> * coding.el (decode-coding-string): (encode-coding-string): Accept GNU's NOCOPY argument for these. Todo; write compiler macros to use it. (query-coding-warning-face): New face, to show unencodable characters. (default-query-coding-region-safe-charset-skip-chars-map): New variable, a cache used by #'default-query-coding-region. (default-query-coding-region): Default implementation of #'query-coding-region, using the safe-charsets and safe-chars coding systemproperties. (query-coding-region): New function; can a given coding system encode a given region? (query-coding-string): New function; can a given coding system encode a given string? (unencodable-char-position): Function API taken from GNU; return the first unencodable position given a string and coding system. (encode-coding-char): Function API taken from GNU; return CHAR encoded using CODING-SYSTEM, or nil if CODING-SYSTEM would trash CHAR. ((unless (featurep 'mule)): Override the default query-coding-region implementation on non-Mule. * mule/mule-coding.el (make-8-bit-generate-helper): Eliminate a duplicate comment. (make-8-bit-choose-category): Simplify implementation. (8-bit-fixed-query-coding-region): Implementation of #'query-coding-region for coding systems created with #'make-8-bit-coding-system. (make-8-bit-coding-system): Initialise the #'query-coding-region implementation for these character sets. (make-8-bit-coding-system): Ditto for the compiler macro version of this function. * unicode.el (unicode-query-coding-skip-chars-arg): New variable, used by unicode-query-coding-region, initialised in mule/general-late.el. (unicode-query-coding-region): New function, the #'query-coding-region implementation for Unicode coding systems. Initialise the query-coding-function property for the Unicode coding systems to #'unicode-query-coding-region. * mule/mule-charset.el (charset-skip-chars-string): New function. Return a #'skip-chars-forward argument that skips all characters in CHARSET. (map-charset-chars): Function synced from GNU, modified to work with XEmacs. Map FUNC across the int value charset ranges of CHARSET.
author Aidan Kehoe <kehoea@parhasard.net>
date Mon, 21 Jan 2008 22:51:21 +0100
parents cee827542370
children d402d7b18bd8
line wrap: on
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;;; iso-with-esc.el --
;;; Provision of the hateful and never widely implemented Latin, Greek and
;;; Cyrillic variable-length ISO 2022 coding systems that passed for Latin
;;; 2, Latin 10, (etc) support in XEmacs for so long.
;;                      
;; Copyright (C) 2006 Free Software Foundation

;; Author: Aidan Kehoe

;; 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)
;; any later version.

;; 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., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.

;;; Commentary:

;;; Code:

;;;###autoload
(define-coding-system-alias 'iso-latin-1-with-esc 'iso-2022-8)

;;;###autoload
(make-coding-system
 'iso-latin-2-with-esc 'iso2022 "ISO-8859-2 (Latin-2)"
 '(charset-g0 ascii
   charset-g1 latin-iso8859-2
   charset-g2 t
   charset-g3 t
   mnemonic "MIME/Ltn-2"))

;;;###autoload
(make-coding-system
 'iso-latin-3-with-esc 'iso2022 "ISO-8859-3 (Latin-3)"
 '(charset-g0 ascii
   charset-g1 latin-iso8859-3
   charset-g2 t
   charset-g3 t
   mnemonic "MIME/Ltn-3"))

;;;###autoload
(make-coding-system
 'iso-latin-4-with-esc 'iso2022 "ISO-8859-4 (Latin-4)"
 '(charset-g0 ascii
   charset-g1 latin-iso8859-4
   charset-g2 t
   charset-g3 t
   mnemonic "MIME/Ltn-4"))

;;;###autoload
(make-coding-system
 'iso-latin-9-with-esc 'iso2022
  "ISO 4873 conforming 8-bit code (ASCII + Latin 9; aka Latin-1 with Euro)"
  '(mnemonic "MIME/Ltn-9"		; bletch
    eol-type nil
    charset-g0 ascii
    charset-g1 latin-iso8859-15
    charset-g2 t
    charset-g3 t))

;;;###autoload
(make-coding-system
 'iso-latin-5-with-esc 'iso2022 "ISO-8859-9 (Latin-5)"
 '(charset-g0 ascii
   charset-g1 latin-iso8859-9
   charset-g2 t
   charset-g3 t
   mnemonic "MIME/Ltn-5"))

;;;###autoload
(make-coding-system
 'cyrillic-iso-8bit-with-esc 'iso2022
 "ISO-8859-5 (Cyrillic)"
 '(charset-g0 ascii
   charset-g1 cyrillic-iso8859-5
   charset-g2 t
   charset-g3 t
   mnemonic "ISO8/Cyr"))

;;;###autoload
(make-coding-system
 'hebrew-iso-8bit-with-esc 'iso2022
 "ISO-8859-8 (Hebrew)"
 '(charset-g0 ascii
   charset-g1 hebrew-iso8859-8
   charset-g2 t
  charset-g3 t
   no-iso6429 t
   mnemonic "MIME/Hbrw"))