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comparison lisp/mule/mule-coding.el @ 333:4f79e16b1112 r21-0-64

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Import from CVS: tag r21-0-64
author cvs
date Mon, 13 Aug 2007 10:49:50 +0200
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332:bb75ebac9531 333:4f79e16b1112
1 ;;; mule-coding.el --- Coding-system functions for Mule.
2
3 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
4 ;; Licensed to the Free Software Foundation.
5 ;; Copyright (C) 1995 Amdahl Corporation.
6 ;; Copyright (C) 1995 Sun Microsystems.
7 ;; Copyright (C) 1997 MORIOKA Tomohiko
8
9 ;; This file is part of XEmacs.
10
11 ;; XEmacs is free software; you can redistribute it and/or modify it
12 ;; under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; any later version.
15
16 ;; XEmacs is distributed in the hope that it will be useful, but
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ;; General Public License for more details.
20
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with XEmacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
25
26 ;;; Commentary:
27
28 ;;; split off of mule.el and mostly moved to coding.el
29
30 ;;; Code:
31
32 (defun coding-system-force-on-output (coding-system register)
33 "Return the 'force-on-output property of CODING-SYSTEM for the specified REGISTER."
34 (unless (integerp register)
35 (signal 'wrong-type-argument (list 'integerp register)))
36 (coding-system-property
37 coding-system
38 (case register
39 (0 'force-g0-on-output)
40 (1 'force-g1-on-output)
41 (2 'force-g2-on-output)
42 (3 'force-g3-on-output)
43 (t (signal 'args-out-of-range (list register 0 3))))))
44
45 (defun coding-system-short (coding-system)
46 "Return the 'short property of CODING-SYSTEM."
47 (coding-system-property coding-system 'short))
48
49 (defun coding-system-no-ascii-eol (coding-system)
50 "Return the 'no-ascii-eol property of CODING-SYSTEM."
51 (coding-system-property coding-system 'no-ascii-eol))
52
53 (defun coding-system-no-ascii-cntl (coding-system)
54 "Return the 'no-ascii-cntl property of CODING-SYSTEM."
55 (coding-system-property coding-system 'no-ascii-cntl))
56
57 (defun coding-system-seven (coding-system)
58 "Return the 'seven property of CODING-SYSTEM."
59 (coding-system-property coding-system 'seven))
60
61 (defun coding-system-lock-shift (coding-system)
62 "Return the 'lock-shift property of CODING-SYSTEM."
63 (coding-system-property coding-system 'lock-shift))
64
65 ;;(defun coding-system-use-japanese-jisx0201-roman (coding-system)
66 ;; "Return the 'use-japanese-jisx0201-roman property of CODING-SYSTEM."
67 ;; (coding-system-property coding-system 'use-japanese-jisx0201-roman))
68
69 ;;(defun coding-system-use-japanese-jisx0208-1978 (coding-system)
70 ;; "Return the 'use-japanese-jisx0208-1978 property of CODING-SYSTEM."
71 ;; (coding-system-property coding-system 'use-japanese-jisx0208-2978))
72
73 (defun coding-system-no-iso6429 (coding-system)
74 "Return the 'no-iso6429 property of CODING-SYSTEM."
75 (coding-system-property coding-system 'no-iso6429))
76
77 (defun coding-system-ccl-encode (coding-system)
78 "Return the CCL 'encode property of CODING-SYSTEM."
79 (coding-system-property coding-system 'encode))
80
81 (defun coding-system-ccl-decode (coding-system)
82 "Return the CCL 'decode property of CODING-SYSTEM."
83 (coding-system-property coding-system 'decode))
84
85
86 ;;;; Definitions of predefined coding systems
87
88 (make-coding-system
89 'ctext 'iso2022
90 "Coding-system used in X as Compound Text Encoding."
91 '(charset-g0 ascii
92 charset-g1 latin-iso8859-1
93 eol-type nil
94 mnemonic "CText"))
95
96 ;;; iso-8859-1 and ctext are aliases.
97
98 ;; (copy-coding-system 'ctext 'iso-8859-1)
99 (make-coding-system
100 'iso-8859-1 'no-conversion
101 "Coding-system used in X as Compound Text Encoding."
102 '(eol-type nil mnemonic "Noconv"))
103
104 (make-coding-system
105 'iso-2022-8bit-ss2 'iso2022
106 "ISO-2022 coding system using SS2 for 96-charset in 8-bit code."
107 '(charset-g0 ascii
108 charset-g1 latin-iso8859-1
109 charset-g2 t ;; unspecified but can be used later.
110 short t
111 mnemonic "ISO8/SS"
112 ))
113
114 (make-coding-system
115 'iso-2022-7bit-ss2 'iso2022
116 "ISO-2022 coding system using SS2 for 96-charset in 7-bit code."
117 '(charset-g0 ascii
118 charset-g2 t ;; unspecified but can be used later.
119 seven t
120 short t
121 mnemonic "ISO7/SS"
122 eol-type nil))
123
124 ;; (copy-coding-system 'iso-2022-7bit-ss2 'iso-2022-jp-2)
125 (make-coding-system
126 'iso-2022-jp-2 'iso2022
127 "ISO-2022 coding system using SS2 for 96-charset in 7-bit code."
128 '(charset-g0 ascii
129 charset-g2 t ;; unspecified but can be used later.
130 seven t
131 short t
132 mnemonic "ISO7/SS"
133 eol-type nil))
134
135 (make-coding-system
136 'iso-2022-7bit 'iso2022
137 "ISO 2022 based 7-bit encoding using only G0"
138 '(charset-g0 ascii
139 seven t
140 short t
141 mnemonic "ISO7"))
142
143 ;; compatibility for old XEmacsen
144 (copy-coding-system 'iso-2022-7bit 'iso-2022-7)
145
146 (make-coding-system
147 'iso-2022-8 'iso2022
148 "ISO-2022 eight-bit coding system. No single-shift or locking-shift."
149 '(charset-g0 ascii
150 charset-g1 latin-iso8859-1
151 short t
152 mnemonic "ISO8"
153 ))
154
155 (make-coding-system
156 'escape-quoted 'iso2022
157 "ISO-2022 eight-bit coding system with escape quoting; used for .ELC files."
158 '(charset-g0 ascii
159 charset-g1 latin-iso8859-1
160 eol-type lf
161 escape-quoted t
162 mnemonic "ESC/Quot"
163 ))
164
165 (make-coding-system
166 'iso-2022-lock 'iso2022
167 "ISO-2022 coding system using Locking-Shift for 96-charset."
168 '(charset-g0 ascii
169 charset-g1 t ;; unspecified but can be used later.
170 seven t
171 lock-shift t
172 mnemonic "ISO7/Lock"
173 ))
174
175 ;; initialize the coding categories to something semi-reasonable
176 ;; so that the remaining Lisp files can contain extended characters.
177 ;; (They will be in ISO-7 format)
178
179 (set-coding-priority-list '(iso-8-2 iso-8-designate iso-8-1
180 iso-7 iso-lock-shift no-conversion))
181
182 (set-coding-category-system 'iso-7 'iso-2022-7)
183 (set-coding-category-system 'iso-8-designate 'ctext)
184 (set-coding-category-system 'iso-8-1 'ctext)
185 (set-coding-category-system 'iso-lock-shift 'iso-2022-lock)
186 (set-coding-category-system 'no-conversion 'no-conversion)
187
188 ;;; mule-coding.el ends here