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333
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1 ;;; mule-cmds.el --- Commands for multilingual environment
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2
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3 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
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4 ;; Licensed to the Free Software Foundation.
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5 ;; Copyright (C) 1997 MORIOKA Tomohiko
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6
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7 ;; Keywords: mule, multilingual
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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24 ;; 02111-1307, USA.
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25
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26 ;;; Code:
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27
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28 ;;; MULE related key bindings and menus.
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29
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30 (defvar mule-keymap (make-sparse-keymap "MULE")
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31 "Keymap for MULE (Multilingual environment) specific commands.")
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32
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33 ;; Keep "C-x C-m ..." for mule specific commands.
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34 (define-key ctl-x-map "\C-m" mule-keymap)
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35
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36 (define-key mule-keymap "f" 'set-buffer-file-coding-system)
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37 (define-key mule-keymap "F" 'set-default-buffer-file-coding-system) ; XEmacs
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38 (define-key mule-keymap "t" 'set-terminal-coding-system)
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39 (define-key mule-keymap "k" 'set-keyboard-coding-system)
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40 (define-key mule-keymap "p" 'set-buffer-process-coding-system)
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41 (define-key mule-keymap "\C-\\" 'select-input-method)
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42 (define-key mule-keymap "c" 'universal-coding-system-argument)
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43 ;;(define-key mule-keymap "c" 'list-coding-system-briefly) ; XEmacs
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44 (define-key mule-keymap "C" 'list-coding-system) ; XEmacs
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45 (define-key mule-keymap "r" 'toggle-display-direction) ; XEmacs
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46 (define-key mule-keymap "l" 'set-language-environment)
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47
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48 (define-key help-map "\C-L" 'describe-language-support)
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49 (define-key help-map "L" 'describe-language-environment)
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50 (define-key help-map "\C-\\" 'describe-input-method)
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51 (define-key help-map "I" 'describe-input-method)
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52 (define-key help-map "C" 'describe-coding-system)
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53 (define-key help-map "h" 'view-hello-file)
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54
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55 ;; Menu for XEmacs were moved to menubar-items.el.
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56
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57
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58 ;; This should be a single character key binding because users use it
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59 ;; very frequently while editing multilingual text. Now we can use
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60 ;; only two such keys: "\C-\\" and "\C-^", but the latter is not
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61 ;; convenient because it requires shifting on most keyboards. An
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62 ;; alternative is "\C-\]" which is now bound to `abort-recursive-edit'
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63 ;; but it won't be used that frequently.
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64 (define-key global-map "\C-\\" 'toggle-input-method)
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65
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66 (defun view-hello-file ()
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67 "Display the HELLO file which list up many languages and characters."
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68 (interactive)
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69 ;; We have to decode the file in any environment.
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70 (let ((coding-system-for-read 'iso-2022-7))
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71 (find-file-read-only (expand-file-name "HELLO" data-directory))))
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72
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73 (defun universal-coding-system-argument ()
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74 "Execute an I/O command using the specified coding system."
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75 (interactive)
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76 (let* ((coding-system
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77 (read-coding-system "Coding system for following command: "))
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78 (keyseq (read-key-sequence
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79 (format "Command to execute with %s:" coding-system)))
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80 (cmd (key-binding keyseq)))
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81 (let ((coding-system-for-read coding-system)
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82 (coding-system-for-write coding-system))
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83 (message "")
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84 (call-interactively cmd))))
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85
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86 (defun set-default-coding-systems (coding-system)
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87 "Set default value of various coding systems to CODING-SYSTEM.
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88 The follwing coding systems are set:
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89 o coding system of a newly created buffer
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90 o default coding system for terminal output
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91 o default coding system for keyboard input
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92 o default coding system for subprocess I/O"
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93 (check-coding-system coding-system)
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94 ;;(setq-default buffer-file-coding-system coding-system)
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95 (set-default-buffer-file-coding-system coding-system)
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96 ;;(setq default-terminal-coding-system coding-system)
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97 (setq terminal-coding-system coding-system)
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98 ;;(setq default-keyboard-coding-system coding-system)
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99 (setq keyboard-coding-system coding-system)
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100 ;;(setq default-process-coding-system (cons coding-system coding-system))
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101 (add-hook 'comint-exec-hook
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102 `(lambda ()
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103 (let ((proc (get-buffer-process (current-buffer))))
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104 (set-process-input-coding-system proc ',coding-system)
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105 (set-process-output-coding-system proc ',coding-system)))
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106 'append)
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107 (setq file-name-coding-system coding-system))
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108
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109 (defun prefer-coding-system (coding-system)
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110 "Add CODING-SYSTEM at the front of the priority list for automatic detection.
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111 This also sets the following coding systems to CODING-SYSTEM:
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112 o coding system of a newly created buffer
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113 o default coding system for terminal output
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114 o default coding system for keyboard input
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115 o default coding system for subprocess I/O"
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116 (interactive "zPrefer coding system: ")
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117 (if (not (and coding-system (coding-system-p coding-system)))
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118 (error "Invalid coding system `%s'" coding-system))
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119 (let ((coding-category (coding-system-category coding-system))
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120 (parent (coding-system-parent coding-system)))
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121 (if (not coding-category)
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122 ;; CODING-SYSTEM is no-conversion or undecided.
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123 (error "Can't prefer the coding system `%s'" coding-system))
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124 (set coding-category (or parent coding-system))
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125 (if (not (eq coding-category (car coding-category-list)))
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126 ;; We must change the order.
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127 (setq coding-category-list
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128 (cons coding-category
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129 (delq coding-category coding-category-list))))
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130 (if (and parent (interactive-p))
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131 (message "Highest priority is set to %s (parent of %s)"
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132 parent coding-system))
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133 (set-default-coding-systems (or parent coding-system))))
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134
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135
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136 ;;; Language support staffs.
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137
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138 (defvar language-info-alist nil
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139 "Alist of language names vs the corresponding information of various kind.
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140 Each element looks like:
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141 (LANGUAGE-NAME . ((KEY . INFO) ...))
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142 where LANGUAGE-NAME is a string,
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143 KEY is a symbol denoting the kind of information,
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144 INFO is any Lisp object which contains the actual information related
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145 to KEY.")
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146
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147 (defun get-language-info (language-name key)
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148 "Return the information for LANGUAGE-NAME of the kind KEY.
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149 KEY is a symbol denoting the kind of required information."
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150 (if (symbolp language-name)
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151 (setq language-name (symbol-name language-name)))
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152 (let ((lang-slot (assoc-ignore-case language-name language-info-alist)))
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153 (if lang-slot
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154 (cdr (assq key (cdr lang-slot))))))
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155
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156 (defun set-language-info (language-name key info)
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157 "Set for LANGUAGE-NAME the information INFO under KEY.
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158 KEY is a symbol denoting the kind of information.
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159 INFO is any Lisp object which contains the actual information.
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160
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161 Currently, the following KEYs are used by Emacs:
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162
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163 charset: list of symbols whose values are charsets specific to the language.
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164
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165 coding-system: list of coding systems specific to the language.
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166
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167 tutorial: a tutorial file name written in the language.
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168
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169 sample-text: one line short text containing characters of the language.
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170
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171 documentation: t or a string describing how Emacs supports the language.
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172 If a string is specified, it is shown before any other information
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173 of the language by the command `describe-language-environment'.
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174
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175 setup-function: a function to call for setting up environment
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176 convenient for a user of the language.
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177
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178 If KEY is documentation or setup-function, you can also specify
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179 a cons cell as INFO, in which case, the car part should be
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180 a normal value as INFO for KEY (as described above),
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181 and the cdr part should be a symbol whose value is a menu keymap
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182 in which an entry for the language is defined. But, only the car part
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183 is actually set as the information.
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184
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185 We will define more KEYs in the future. To avoid conflict,
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186 if you want to use your own KEY values, make them start with `user-'."
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187 (if (symbolp language-name)
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188 (setq language-name (symbol-name language-name)))
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189 (let (lang-slot key-slot)
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190 (setq lang-slot (assoc language-name language-info-alist))
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191 (if (null lang-slot) ; If no slot for the language, add it.
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192 (setq lang-slot (list language-name)
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193 language-info-alist (cons lang-slot language-info-alist)))
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194 (setq key-slot (assq key lang-slot))
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195 (if (null key-slot) ; If no slot for the key, add it.
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196 (progn
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197 (setq key-slot (list key))
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198 (setcdr lang-slot (cons key-slot (cdr lang-slot)))))
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199 ;; Setup menu.
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200 (cond ((eq key 'documentation)
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201 ;; (define-key-after
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202 ;; (if (consp info)
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203 ;; (prog1 (symbol-value (cdr info))
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204 ;; (setq info (car info)))
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205 ;; describe-language-environment-map)
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206 ;; (vector (intern language-name))
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207 ;; (cons language-name 'describe-specified-language-support)
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208 ;; t)
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209 (if (consp info)
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210 (setq info (car info)))
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211 (when (featurep 'menubar)
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212 (eval-after-load
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213 "menubar-items.elc"
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214 `(add-menu-button
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215 '("Mule" "Describe Language Support")
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216 (vector ,language-name
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217 '(describe-language-environment ,language-name)
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218 t))))
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219 )
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220 ((eq key 'setup-function)
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221 ;; (define-key-after
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222 ;; (if (consp info)
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223 ;; (prog1 (symbol-value (cdr info))
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224 ;; (setq info (car info)))
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225 ;; setup-language-environment-map)
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226 ;; (vector (intern language-name))
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227 ;; (cons language-name 'setup-specified-language-environment)
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228 ;; t)
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229 (if (consp info)
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230 (setq info (car info)))
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231 (when (featurep 'menubar)
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232 (eval-after-load
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233 "menubar-items.elc"
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234 `(add-menu-button
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235 '("Mule" "Set Language Environment")
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236 (vector ,language-name
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237 '(set-language-environment ,language-name)
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238 t))))
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239 ))
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240
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241 (setcdr key-slot info)
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242 ))
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243
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244 (defun set-language-info-alist (language-name alist)
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245 "Set for LANGUAGE-NAME the information in ALIST.
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246 ALIST is an alist of KEY and INFO. See the documentation of
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247 `set-language-info' for the meanings of KEY and INFO."
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248 (if (symbolp language-name)
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249 (setq language-name (symbol-name language-name)))
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250 (while alist
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251 (set-language-info language-name (car (car alist)) (cdr (car alist)))
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252 (setq alist (cdr alist))))
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253
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254 (defun read-language-name (key prompt &optional default)
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255 "Read language name which has information for KEY, prompting with PROMPT.
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256 DEFAULT is the default choice of language.
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257 This returns a language name as a string."
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258 (let* ((completion-ignore-case t)
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259 (name (completing-read prompt
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260 language-info-alist
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261 (function (lambda (elm) (assq key elm)))
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262 t nil default)))
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263 (if (and (> (length name) 0)
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264 (get-language-info name key))
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265 name)))
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266
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267 ;;; Multilingual input methods.
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268
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269 (defconst leim-list-file-name "leim-list.el"
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270 "Name of LEIM list file.
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271 This file contains a list of libraries of Emacs input methods (LEIM)
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272 in the format of Lisp expression for registering each input method.
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273 Emacs loads this file at startup time.")
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274
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275 (defvar leim-list-header (format
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276 ";;; %s -- list of LEIM (Library of Emacs Input Method)
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277 ;;
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278 ;; This file contains a list of LEIM (Library of Emacs Input Method)
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279 ;; in the same directory as this file. Loading this file registeres
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280 ;; the whole input methods in Emacs.
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281 ;;
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282 ;; Each entry has the form:
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283 ;; (register-input-method
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284 ;; INPUT-METHOD LANGUAGE-NAME ACTIVATE-FUNC
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285 ;; TITLE DESCRIPTION
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286 ;; ARG ...)
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287 ;; See the function `register-input-method' for the meanings of arguments.
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288 ;;
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289 ;; If this directory is included in load-path, Emacs automatically
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290 ;; loads this file at startup time.
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291
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292 "
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293 leim-list-file-name)
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294 "Header to be inserted in LEIM list file.")
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295
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296 (defvar leim-list-entry-regexp "^(register-input-method"
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297 "Regexp matching head of each entry in LEIM list file.
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298 See also the variable `leim-list-header'")
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299
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300 (defvar update-leim-list-functions
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301 '(quail-update-leim-list-file)
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302 "List of functions to call to update LEIM list file.
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303 Each function is called with one arg, LEIM directory name.")
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304
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305 (defun update-leim-list-file (&rest dirs)
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306 "Update LEIM list file in directories DIRS."
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307 (let ((functions update-leim-list-functions))
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308 (while functions
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309 (apply (car functions) dirs)
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310 (setq functions (cdr functions)))))
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311
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312 (defvar current-input-method nil
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313 "The current input method for multilingual text.
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314 If nil, that means no input method is activated now.")
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315 (make-variable-buffer-local 'current-input-method)
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316 (put 'current-input-method 'permanent-local t)
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317
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318 (defvar current-input-method-title nil
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319 "Title string of the current input method shown in mode line.")
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320 (make-variable-buffer-local 'current-input-method-title)
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321 (put 'current-input-method-title 'permanent-local t)
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322
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323 (defcustom default-input-method nil
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324 "*Default input method for multilingual text.
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325 This is the input method activated automatically by the command
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326 `toggle-input-method' (\\[toggle-input-method])."
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327 :group 'mule)
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328
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329 (defvar input-method-history nil
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330 "History list for some commands that read input methods.")
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331 (make-variable-buffer-local 'input-method-history)
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332 (put 'input-method-history 'permanent-local t)
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333
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334 (defvar inactivate-current-input-method-function nil
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335 "Function to call for inactivating the current input method.
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336 Every input method should set this to an appropriate value when activated.
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337 This function is called with no argument.
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338
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339 This function should never change the value of `current-input-method'.
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340 It is set to nil by the function `inactivate-input-method'.")
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341 (make-variable-buffer-local 'inactivate-current-input-method-function)
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342 (put 'inactivate-current-input-method-function 'permanent-local t)
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343
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344 (defvar describe-current-input-method-function nil
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345 "Function to call for describing the current input method.
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346 This function is called with no argument.")
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347 (make-variable-buffer-local 'describe-current-input-method-function)
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348 (put 'describe-current-input-method-function 'permanent-local t)
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349
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350 (defvar input-method-alist nil
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351 "Alist of input method names vs the corresponding information to use it.
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352 Each element has the form:
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353 (INPUT-METHOD LANGUAGE-NAME ACTIVATE-FUNC TITLE DESCRIPTION ...)
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354 See the function `register-input-method' for the meanings of each elements.")
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355
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356 (defun register-input-method (input-method language-name &rest args)
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357 "Register INPUT-METHOD as an input method for LANGUAGE-NAME.
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358 INPUT-METHOD and LANGUAGE-NAME are symbols or strings.
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359 The remaining arguments are:
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360 ACTIVATE-FUNC, TITLE, DESCRIPTION, and ARG ...
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361 where,
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362 ACTIVATE-FUNC is a function to call for activating this method.
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363 TITLE is a string shown in mode-line while this method is active,
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364 DESCRIPTION is a string describing about this method,
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365 Arguments to ACTIVATE-FUNC are INPUT-METHOD and ARGs."
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366 (if (symbolp language-name)
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367 (setq language-name (symbol-name language-name)))
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368 (if (symbolp input-method)
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369 (setq input-method (symbol-name input-method)))
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370 (let ((info (cons language-name args))
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371 (slot (assoc input-method input-method-alist)))
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372 (if slot
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373 (setcdr slot info)
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374 (setq slot (cons input-method info))
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375 (setq input-method-alist (cons slot input-method-alist)))))
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376
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377 (defun read-input-method-name (prompt &optional default inhibit-null)
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378 "Read a name of input method from a minibuffer prompting with PROMPT.
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379 If DEFAULT is non-nil, use that as the default,
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380 and substitute it into PROMPT at the first `%s'.
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381 If INHIBIT-NULL is non-nil, null input signals an error.
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382
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383 The return value is a string."
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384 (if default
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385 (setq prompt (format prompt default)))
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386 (let* ((completion-ignore-case t)
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387 ;; This binding is necessary because input-method-history is
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388 ;; buffer local.
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389 (input-method (completing-read prompt input-method-alist
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390 nil t nil 'input-method-history)
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391 ;;default)
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392 ))
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393 (if (> (length input-method) 0)
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394 input-method
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395 (if inhibit-null
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396 (error "No valid input method is specified")))))
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397
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398 (defun activate-input-method (input-method)
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399 "Turn INPUT-METHOD on.
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400 If some input method is already on, turn it off at first."
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401 (if (symbolp input-method)
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402 (setq input-method (symbol-name input-method)))
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403 (if (and current-input-method
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404 (not (string= current-input-method input-method)))
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405 (inactivate-input-method))
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406 (unless current-input-method
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407 (let ((slot (assoc input-method input-method-alist)))
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408 (if (null slot)
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409 (error "Can't activate input method `%s'" input-method))
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410 (apply (nth 2 slot) input-method (nthcdr 5 slot))
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411 (setq current-input-method input-method)
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412 (setq current-input-method-title (nth 3 slot))
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413 (run-hooks 'input-method-activate-hook))))
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414
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415 (defun inactivate-input-method ()
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416 "Turn off the current input method."
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417 (when current-input-method
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418 (if input-method-history
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419 (unless (string= current-input-method (car input-method-history))
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420 (setq input-method-history
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421 (cons current-input-method
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422 (delete current-input-method input-method-history))))
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423 (setq input-method-history (list current-input-method)))
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424 (unwind-protect
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425 (funcall inactivate-current-input-method-function)
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426 (unwind-protect
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427 (run-hooks 'input-method-inactivate-hook)
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428 (setq current-input-method nil
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429 current-input-method-title nil)))))
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430
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|
431 (defun select-input-method (input-method)
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432 "Select and turn on INPUT-METHOD.
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433 This sets the default input method to what you specify,
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434 and turn it on for the current buffer."
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|
435 (interactive
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436 (let* ((default (or (car input-method-history) default-input-method)))
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437 (list (read-input-method-name
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438 (if default "Select input method (default %s): " "Select input method: ")
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439 default t))))
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|
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440 (activate-input-method input-method)
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441 (setq default-input-method input-method))
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442
|
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|
443 (defun toggle-input-method (&optional arg)
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444 "Turn on or off a multilingual text input method for the current buffer.
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445
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446 With arg, read an input method from minibuffer and turn it on.
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447
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|
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448 Without arg, if some input method is currently activated, turn it off,
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|
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449 else turn on an input method selected last time
|
|
|
450 or the default input method (see `default-input-method').
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|
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451
|
|
|
452 When there's no input method to turn on, turn on what read from minibuffer."
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|
|
453 (interactive "P")
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|
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454 (let* ((default (or (car input-method-history) default-input-method)))
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|
|
455 (if (and current-input-method (not arg))
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|
|
456 (inactivate-input-method)
|
|
|
457 (activate-input-method
|
|
|
458 (if (or arg (not default))
|
|
|
459 (read-input-method-name
|
|
|
460 (if default "Input method (default %s): " "Input method: " )
|
|
|
461 default t)
|
|
|
462 default))
|
|
|
463 (or default-input-method
|
|
|
464 (setq default-input-method current-input-method)))))
|
|
|
465
|
|
|
466 (defun describe-input-method (input-method)
|
|
|
467 "Describe input method INPUT-METHOD."
|
|
|
468 (interactive
|
|
|
469 (list (read-input-method-name
|
|
|
470 "Describe input method (default, current choice): ")))
|
|
|
471 (if (and input-method (symbolp input-method))
|
|
|
472 (setq input-method (symbol-name input-method)))
|
|
|
473 (if (null input-method)
|
|
|
474 (describe-current-input-method)
|
|
|
475 (with-output-to-temp-buffer "*Help*"
|
|
|
476 (let ((elt (assoc input-method input-method-alist)))
|
|
|
477 (princ (format "Input method: %s (`%s' in mode line) for %s\n %s\n"
|
|
|
478 input-method (nth 3 elt) (nth 1 elt) (nth 4 elt)))))))
|
|
|
479
|
|
|
480 (defun describe-current-input-method ()
|
|
|
481 "Describe the input method currently in use."
|
|
|
482 (if current-input-method
|
|
|
483 (if (and (symbolp describe-current-input-method-function)
|
|
|
484 (fboundp describe-current-input-method-function))
|
|
|
485 (funcall describe-current-input-method-function)
|
|
|
486 (message "No way to describe the current input method `%s'"
|
|
|
487 (cdr current-input-method))
|
|
|
488 (ding))
|
|
|
489 (error "No input method is activated now")))
|
|
|
490
|
|
|
491 (defun read-multilingual-string (prompt &optional initial-input
|
|
|
492 input-method)
|
|
|
493 "Read a multilingual string from minibuffer, prompting with string PROMPT.
|
|
|
494 The input method selected last time is activated in minibuffer.
|
|
|
495 If optional second arg INITIAL-INPUT is non-nil, insert it in the minibuffer
|
|
|
496 initially.
|
|
|
497 Optional 3rd argument INPUT-METHOD specifies the input method
|
|
|
498 to be activated instead of the one selected last time. It is a symbol
|
|
|
499 or a string."
|
|
|
500 (setq input-method
|
|
|
501 (or input-method
|
|
|
502 default-input-method
|
|
|
503 (read-input-method-name "Input method: " nil t)))
|
|
|
504 (if (and input-method (symbolp input-method))
|
|
|
505 (setq input-method (symbol-name input-method)))
|
|
|
506 (let ((current-input-method input-method))
|
|
|
507 ;; FSFmacs
|
|
|
508 ;; (read-string prompt initial-input nil nil t)))
|
|
|
509 (read-string prompt initial-input nil)))
|
|
|
510
|
|
|
511 ;; Variables to control behavior of input methods. All input methods
|
|
|
512 ;; should react to these variables.
|
|
|
513
|
|
|
514 (defcustom input-method-verbose-flag t
|
|
|
515 "*If this flag is non-nil, input methods give extra guidance.
|
|
|
516
|
|
|
517 The extra guidance is done by showing list of available keys in echo
|
|
|
518 area.
|
|
|
519
|
|
|
520 For complex input methods such as `chinese-py' and `japanese',
|
|
|
521 when you use the input method in the minibuffer, the guidance is
|
|
|
522 shown at the bottom short window (split from the existing window).
|
|
|
523 For simple input methods, guidance is not shown
|
|
|
524 when you are in the minibuffer."
|
|
|
525 :type 'boolean
|
|
|
526 :group 'mule)
|
|
|
527
|
|
|
528 (defcustom input-method-highlight-flag t
|
|
|
529 "*If this flag is non-nil, input methods highlight partially-entered text.
|
|
|
530 For instance, while you are in the middle of a Quail input method sequence,
|
|
|
531 the text inserted so far is temporarily underlined.
|
|
|
532 The underlining goes away when you finish or abort the input method sequence."
|
|
|
533 :type 'boolean
|
|
|
534 :group 'mule)
|
|
|
535
|
|
|
536 (defvar input-method-activate-hook nil
|
|
|
537 "Normal hook run just after an input method is activated.
|
|
|
538
|
|
|
539 The variable `current-input-method' keeps the input method name
|
|
|
540 just activated.")
|
|
|
541
|
|
|
542 (defvar input-method-inactivate-hook nil
|
|
|
543 "Normal hook run just after an input method is inactivated.
|
|
|
544
|
|
|
545 The variable `current-input-method' still keeps the input method name
|
|
|
546 just inacitvated.")
|
|
|
547
|
|
|
548 (defvar input-method-after-insert-chunk-hook nil
|
|
|
549 "Normal hook run just after an input method insert some chunk of text.")
|
|
|
550
|
|
|
551 (defvar input-method-exit-on-invalid-key nil
|
|
|
552 "This flag controls the behaviour of an input method on invalid key input.
|
|
|
553 Usually, when a user types a key which doesn't start any character
|
|
|
554 handled by the input method, the key is handled by turning off the
|
|
|
555 input method temporalily. After the key is handled, the input method is
|
|
|
556 back on.
|
|
|
557 But, if this flag is non-nil, the input method is never back on.")
|
|
|
558
|
|
|
559
|
|
|
560 (defun setup-specified-language-environment ()
|
|
|
561 "Set up multi-lingual environment convenient for the specified language."
|
|
|
562 (interactive)
|
|
|
563 (let (language-name)
|
|
|
564 (if (and (symbolp last-command-event)
|
|
|
565 (or (not (eq last-command-event 'Default))
|
|
|
566 (setq last-command-event 'English))
|
|
|
567 (setq language-name (symbol-name last-command-event)))
|
|
|
568 (set-language-environment language-name)
|
|
|
569 (error "Bogus calling sequence"))))
|
|
|
570
|
|
|
571 (defvar current-language-environment "English"
|
|
|
572 "The last language environment specified with `set-language-environment'.")
|
|
|
573
|
|
|
574 (defun set-language-environment (language-name)
|
|
|
575 "Set up multi-lingual environment for using LANGUAGE-NAME.
|
|
|
576 This sets the coding system priority and the default input method
|
|
|
577 and sometimes other things."
|
|
|
578 (interactive (list (read-language-name 'setup-function
|
|
|
579 "Set language environment: ")))
|
|
|
580 (if language-name
|
|
|
581 (if (symbolp language-name)
|
|
|
582 (setq language-name (symbol-name language-name)))
|
|
|
583 (setq language-name "English"))
|
|
|
584 (if (null (get-language-info language-name 'setup-function))
|
|
|
585 (error "Language environment not defined: %S" language-name))
|
|
|
586 (funcall (get-language-info language-name 'setup-function))
|
|
|
587 (setq current-language-environment language-name)
|
|
|
588 (force-mode-line-update t))
|
|
|
589
|
|
|
590 ;; Print all arguments with `princ', then print "\n".
|
|
|
591 (defsubst princ-list (&rest args)
|
|
|
592 (while args (princ (car args)) (setq args (cdr args)))
|
|
|
593 (princ "\n"))
|
|
|
594
|
|
|
595 ;; Print a language specific information such as input methods,
|
|
|
596 ;; charsets, and coding systems. This function is intended to be
|
|
|
597 ;; called from the menu:
|
|
|
598 ;; [menu-bar mule describe-language-environment LANGUAGE]
|
|
|
599 ;; and should not run it by `M-x describe-current-input-method-function'.
|
|
|
600 (defun describe-specified-language-support ()
|
|
|
601 "Describe how Emacs supports the specified language environment."
|
|
|
602 (interactive)
|
|
|
603 (let (language-name)
|
|
|
604 (if (not (and (symbolp last-command-event)
|
|
|
605 (setq language-name (symbol-name last-command-event))))
|
|
|
606 (error "Bogus calling sequence"))
|
|
|
607 (describe-language-environment language-name)))
|
|
|
608
|
|
|
609 (defun describe-language-environment (language-name)
|
|
|
610 "Describe how Emacs supports language environment LANGUAGE-NAME."
|
|
|
611 (interactive
|
|
|
612 (list (read-language-name
|
|
|
613 'documentation
|
|
|
614 "Describe language environment (default, current choise): ")))
|
|
|
615 (if (null language-name)
|
|
|
616 (setq language-name current-language-environment))
|
|
|
617 (if (or (null language-name)
|
|
|
618 (null (get-language-info language-name 'documentation)))
|
|
|
619 (error "No documentation for the specified language"))
|
|
|
620 (if (symbolp language-name)
|
|
|
621 (setq language-name (symbol-name language-name)))
|
|
|
622 (let ((doc (get-language-info language-name 'documentation)))
|
|
|
623 (with-output-to-temp-buffer "*Help*"
|
|
|
624 (if (stringp doc)
|
|
|
625 (progn
|
|
|
626 (princ-list doc)
|
|
|
627 (terpri)))
|
|
|
628 (let ((str (get-language-info language-name 'sample-text)))
|
|
|
629 (if (stringp str)
|
|
|
630 (progn
|
|
|
631 (princ "Sample text:\n")
|
|
|
632 (princ-list " " str)
|
|
|
633 (terpri))))
|
|
|
634 (princ "Input methods:\n")
|
|
|
635 (let ((l input-method-alist))
|
|
|
636 (while l
|
|
|
637 (if (string= language-name (nth 1 (car l)))
|
|
|
638 (princ-list " " (car (car l))
|
|
|
639 (format " (`%s' in mode line)" (nth 3 (car l)))))
|
|
|
640 (setq l (cdr l))))
|
|
|
641 (terpri)
|
|
|
642 (princ "Character sets:\n")
|
|
|
643 (let ((l (get-language-info language-name 'charset)))
|
|
|
644 (if (null l)
|
|
|
645 (princ-list " nothing specific to " language-name)
|
|
|
646 (while l
|
|
|
647 (princ-list " " (car l) ": "
|
|
|
648 (charset-description (car l)))
|
|
|
649 (setq l (cdr l)))))
|
|
|
650 (terpri)
|
|
|
651 (princ "Coding systems:\n")
|
|
|
652 (let ((l (get-language-info language-name 'coding-system)))
|
|
|
653 (if (null l)
|
|
|
654 (princ-list " nothing specific to " language-name)
|
|
|
655 (while l
|
|
|
656 (princ ; (format " %s (`%c' in mode line):\n\t%s\n"
|
|
|
657 ;; In XEmacs, `coding-system-mnemonic' returns string.
|
|
|
658 (format " %s (`%s' in mode line):\n\t%s\n"
|
|
|
659 (car l)
|
|
|
660 (coding-system-mnemonic (car l))
|
|
|
661 (coding-system-doc-string (car l))))
|
|
|
662 (setq l (cdr l))))))))
|
|
|
663
|
|
|
664 ;;; Charset property
|
|
|
665
|
|
|
666 ;; (defsubst get-charset-property (charset propname)
|
|
|
667 ;; "Return the value of CHARSET's PROPNAME property.
|
|
|
668 ;; This is the last value stored with
|
|
|
669 ;; `(put-charset-property CHARSET PROPNAME VALUE)'."
|
|
|
670 ;; (plist-get (charset-plist charset) propname))
|
|
|
671
|
|
|
672 ;; (defsubst put-charset-property (charset propname value)
|
|
|
673 ;; "Store CHARSETS's PROPNAME property with value VALUE.
|
|
|
674 ;; It can be retrieved with `(get-charset-property CHARSET PROPNAME)'."
|
|
|
675 ;; (set-charset-plist charset
|
|
|
676 ;; (plist-put (charset-plist charset) propname value)))
|
|
|
677
|
|
|
678 (defvar char-code-property-table
|
|
|
679 (make-char-table 'generic)
|
|
|
680 "Char-table containing a property list of each character code.
|
|
|
681 ;;
|
|
|
682 See also the documentation of `get-char-code-property' and
|
|
|
683 `put-char-code-property'")
|
|
|
684 ;; (let ((plist (aref char-code-property-table char)))
|
|
|
685 (defun get-char-code-property (char propname)
|
|
|
686 "Return the value of CHAR's PROPNAME property in `char-code-property-table'."
|
|
|
687 (let ((plist (get-char-table char char-code-property-table)))
|
|
|
688 (if (listp plist)
|
|
|
689 (car (cdr (memq propname plist))))))
|
|
|
690
|
|
|
691 (defun put-char-code-property (char propname value)
|
|
|
692 "Store CHAR's PROPNAME property with VALUE in `char-code-property-table'.
|
|
|
693 It can be retrieved with `(get-char-code-property CHAR PROPNAME)'."
|
|
|
694 (let ((plist (get-char-table char char-code-property-table)))
|
|
|
695 (if plist
|
|
|
696 (let ((slot (memq propname plist)))
|
|
|
697 (if slot
|
|
|
698 (setcar (cdr slot) value)
|
|
|
699 (nconc plist (list propname value))))
|
|
|
700 (put-char-table char (list propname value) char-code-property-table)
|
|
|
701 )))
|
|
|
702 ;; (setcar (cdr slot) value)
|
|
|
703 ;; (nconc plist (list propname value))))
|
|
|
704 ;; (aset char-code-property-table char (list propname value)))))
|
|
|
705
|
|
|
706 ;;; mule-cmds.el ends here
|
