|
444
|
1 ;;; code-cmds.el --- Commands for manipulating coding systems..
|
|
|
2
|
|
|
3 ;; Copyright (C) 1995,1999 Electrotechnical Laboratory, JAPAN.
|
|
|
4 ;; Licensed to the Free Software Foundation.
|
|
|
5 ;; Copyright (C) 2000 Free Software Foundation
|
|
|
6 ;; Copyright (C) 1997 MORIOKA Tomohiko
|
|
|
7
|
|
|
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 Free
|
|
|
23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
|
|
24 ;; 02111-1307, USA.
|
|
|
25
|
|
|
26 ;;
|
|
|
27 ;; This code defines the keybindings and utility commands for the
|
|
|
28 ;; user to manipulate coding systems.
|
|
|
29 ;; This code used to be in mule-cmds.el which now only needs the
|
|
|
30 ;; additional bindings/commands that are avaible on the real mule.
|
|
|
31
|
|
|
32
|
|
|
33 ;;; Code:
|
|
|
34
|
|
|
35 ;;; Coding related key bindings and menus.
|
|
|
36
|
|
|
37 (defvar coding-keymap (make-sparse-keymap "Mule/Conding")
|
|
|
38 "Keymap for Mule and Coding cystem specific commands.")
|
|
|
39
|
|
|
40 ;; Keep "C-x C-m ..." for mule specific commands.
|
|
|
41 (define-key ctl-x-map "\C-m" coding-keymap)
|
|
|
42
|
|
|
43 (define-key coding-keymap "f" 'set-buffer-file-coding-system)
|
|
|
44 (define-key coding-keymap "F" 'set-default-buffer-file-coding-system) ; XEmacs
|
|
|
45 (define-key coding-keymap "t" 'set-terminal-coding-system)
|
|
|
46 (define-key coding-keymap "p" 'set-buffer-process-coding-system)
|
|
|
47 ;(define-key coding-keymap "x" 'set-selection-coding-system)
|
|
|
48 ;(define-key coding-keymap "X" 'set-next-selection-coding-system)
|
|
|
49 (define-key coding-keymap "c" 'universal-coding-system-argument)
|
|
|
50 ;;(define-key coding-keymap "c" 'list-coding-system-briefly) ; XEmacs
|
|
|
51 ;;(define-key coding-keymap "C" 'describe-coding-system) ; XEmacs
|
|
|
52
|
|
|
53
|
|
|
54 (defun coding-system-change-eol-conversion (coding-system eol-type)
|
|
|
55 "Return a coding system which differs from CODING-SYSTEM in eol conversion.
|
|
|
56 The returned coding system converts end-of-line by EOL-TYPE
|
|
|
57 but text as the same way as CODING-SYSTEM.
|
|
|
58 EOL-TYPE should be `lf', `crlf', `cr' or nil.
|
|
|
59 If EOL-TYPE is nil, the returned coding system detects
|
|
|
60 how end-of-line is formatted automatically while decoding.
|
|
|
61
|
|
|
62 EOL-TYPE can be specified by an symbol `unix', `dos' or `mac'.
|
|
|
63 They means `lf', `crlf', and `cr' respectively."
|
|
|
64 (if (symbolp eol-type)
|
|
|
65 (setq eol-type (cond ((or (eq eol-type 'unix)
|
|
|
66 (eq eol-type 'lf))
|
|
|
67 'eol-lf)
|
|
|
68 ((or (eq eol-type 'dos)
|
|
|
69 (eq eol-type 'crlf))
|
|
|
70 'eol-crlf)
|
|
|
71 ((or (eq eol-type 'mac)
|
|
|
72 (eq eol-type 'cr))
|
|
|
73 'eol-cr)
|
|
|
74 (t eol-type))))
|
|
|
75 (let ((orig-eol-type (coding-system-eol-type coding-system)))
|
|
|
76 (if (null orig-eol-type)
|
|
|
77 (if (not eol-type)
|
|
|
78 coding-system
|
|
|
79 (coding-system-property coding-system eol-type))
|
|
|
80 (let ((base (coding-system-base coding-system)))
|
|
|
81 (if (not eol-type)
|
|
|
82 base
|
|
|
83 (if (= eol-type orig-eol-type)
|
|
|
84 coding-system
|
|
|
85 (setq orig-eol-type (coding-system-eol-type base))
|
|
|
86 (if (null orig-eol-type)
|
|
|
87 (coding-system-property base eol-type))))))))
|
|
|
88
|
|
|
89
|
|
|
90 (defun universal-coding-system-argument ()
|
|
|
91 "Execute an I/O command using the specified coding system."
|
|
|
92 (interactive)
|
|
|
93 (let* ((default (and buffer-file-coding-system
|
|
|
94 (not (eq (coding-system-type buffer-file-coding-system)
|
|
|
95 t))
|
|
|
96 (coding-system-name buffer-file-coding-system)))
|
|
|
97 (coding-system
|
|
|
98 (read-coding-system
|
|
|
99 (if default
|
|
|
100 (format "Coding system for following command (default, %s): "
|
|
|
101 default)
|
|
|
102 "Coding system for following command: ")
|
|
|
103 default))
|
|
|
104 (keyseq (read-key-sequence
|
|
|
105 (format "Command to execute with %s:" coding-system)))
|
|
|
106 (cmd (key-binding keyseq)))
|
|
|
107 (let ((coding-system-for-read coding-system)
|
|
|
108 (coding-system-for-write coding-system))
|
|
|
109 (message "")
|
|
|
110 (call-interactively cmd))))
|
|
|
111
|
|
|
112 (defun set-default-coding-systems (coding-system)
|
|
|
113 "Set default value of various coding systems to CODING-SYSTEM.
|
|
|
114 This sets the following coding systems:
|
|
|
115 o coding system of a newly created buffer
|
|
|
116 o default coding system for terminal output
|
|
|
117 o default coding system for keyboard input
|
|
|
118 o default coding system for subprocess I/O
|
|
|
119 o default coding system for converting file names."
|
|
|
120 (check-coding-system coding-system)
|
|
|
121 ;;(setq-default buffer-file-coding-system coding-system)
|
|
|
122 (set-default-buffer-file-coding-system coding-system)
|
|
|
123 ;; (if default-enable-multibyte-characters
|
|
|
124 ;; (setq default-file-name-coding-system coding-system))
|
|
|
125 ;; If coding-system is nil, honor that on MS-DOS as well, so
|
|
|
126 ;; that they could reset the terminal coding system.
|
|
|
127 ;; (unless (and (eq window-system 'pc) coding-system)
|
|
|
128 ;; (setq default-terminal-coding-system coding-system))
|
|
|
129 (set-terminal-coding-system coding-system)
|
|
|
130 ;;(setq default-keyboard-coding-system coding-system)
|
|
|
131 (set-keyboard-coding-system coding-system)
|
|
|
132 ;;(setq default-process-coding-system (cons coding-system coding-system))
|
|
|
133 ;; Refer to coding-system-for-read and coding-system-for-write
|
|
|
134 ;; so that C-x RET c works.
|
|
|
135 (add-hook 'comint-exec-hook
|
|
|
136 `(lambda ()
|
|
|
137 (let ((proc (get-buffer-process (current-buffer))))
|
|
|
138 (set-process-input-coding-system
|
|
|
139 proc (or coding-system-for-read ',coding-system))
|
|
|
140 (set-process-output-coding-system
|
|
|
141 proc (or coding-system-for-write ',coding-system))))
|
|
|
142 'append)
|
|
|
143 (setq file-name-coding-system coding-system))
|
|
|
144
|
|
|
145 (defun prefer-coding-system (coding-system)
|
|
|
146 "Add CODING-SYSTEM at the front of the priority list for automatic detection.
|
|
|
147 This also sets the following coding systems:
|
|
|
148 o coding system of a newly created buffer
|
|
|
149 o default coding system for terminal output
|
|
|
150 o default coding system for keyboard input
|
|
|
151 o default coding system for converting file names.
|
|
|
152
|
|
|
153 If CODING-SYSTEM specifies a certain type of EOL conversion, the coding
|
|
|
154 systems set by this function will use that type of EOL conversion.
|
|
|
155
|
|
|
156 This command does not change the default value of terminal coding system
|
|
|
157 for MS-DOS terminal, because DOS terminals only support a single coding
|
|
|
158 system, and Emacs automatically sets the default to that coding system at
|
|
|
159 startup."
|
|
|
160 (interactive "zPrefer coding system: ")
|
|
|
161 (if (not (and coding-system (find-coding-system coding-system)))
|
|
|
162 (error "Invalid coding system `%s'" coding-system))
|
|
|
163 (let ((coding-category (coding-system-category coding-system))
|
|
|
164 (base (coding-system-base coding-system))
|
|
|
165 (eol-type (coding-system-eol-type coding-system)))
|
|
|
166 (if (not coding-category)
|
|
|
167 ;; CODING-SYSTEM is no-conversion or undecided.
|
|
|
168 (error "Can't prefer the coding system `%s'" coding-system))
|
|
|
169 (set-coding-category-system coding-category (or base coding-system))
|
|
|
170 ;; (update-coding-systems-internal)
|
|
|
171 (or (eq coding-category (car (coding-category-list)))
|
|
|
172 ;; We must change the order.
|
|
|
173 (set-coding-priority-list (list coding-category)))
|
|
|
174 (if (and base (interactive-p))
|
|
|
175 (message "Highest priority is set to %s (base of %s)"
|
|
|
176 base coding-system))
|
|
|
177 ;; If they asked for specific EOL conversion, honor that.
|
|
|
178 (if (memq eol-type '(lf crlf mac))
|
|
|
179 (setq coding-system
|
|
|
180 (coding-system-change-eol-conversion base eol-type))
|
|
|
181 (setq coding-system base))
|
|
|
182 (set-default-coding-systems coding-system)))
|
|
|
183
|
|
|
184 ;;; Commands
|
|
|
185
|
|
|
186 (defun set-buffer-process-coding-system (decoding encoding)
|
|
|
187 "Set coding systems for the process associated with the current buffer.
|
|
|
188 DECODING is the coding system to be used to decode input from the process,
|
|
|
189 ENCODING is the coding system to be used to encode output to the process.
|
|
|
190
|
|
|
191 For a list of possible values of CODING-SYSTEM, use \\[list-coding-systems]."
|
|
|
192 (interactive
|
|
|
193 "zCoding-system for process input: \nzCoding-system for process output: ")
|
|
|
194 (let ((proc (get-buffer-process (current-buffer))))
|
|
|
195 (if (null proc)
|
|
|
196 (error "no process")
|
|
|
197 (check-coding-system decoding)
|
|
|
198 (check-coding-system encoding)
|
|
|
199 (set-process-coding-system proc decoding encoding)))
|
|
|
200 (force-mode-line-update))
|
|
|
201
|
|
|
202 (provide 'code-cmds)
|
|
|
203
|
|
|
204 ;;; code-cmds.el ends here
|
