1 | ;;; pccl-20.el --- Portable CCL utility for Emacs 20 and XEmacs-21-mule |
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2 | |
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3 | ;; Copyright (C) 1998 Free Software Foundation, Inc. |
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4 | ;; Copyright (C) 1998 Tanaka Akira |
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5 | |
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6 | ;; Author: Tanaka Akira <akr@jaist.ac.jp> |
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7 | ;; Keywords: emulation, compatibility, Mule |
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8 | |
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9 | ;; This file is part of APEL (A Portable Emacs Library). |
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10 | |
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11 | ;; This program is free software; you can redistribute it and/or |
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12 | ;; modify it under the terms of the GNU General Public License as |
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13 | ;; published by the Free Software Foundation; either version 2, or (at |
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14 | ;; your option) any later version. |
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15 | |
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16 | ;; This program 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 GNU Emacs; see the file COPYING. If not, write to the |
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23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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24 | ;; Boston, MA 02111-1307, USA. |
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25 | |
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26 | ;;; Code: |
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27 | |
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28 | (eval-when-compile (require 'ccl)) |
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29 | (require 'broken) |
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30 | |
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31 | (broken-facility ccl-accept-symbol-as-program |
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32 | "Emacs does not accept symbol as CCL program." |
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33 | (progn |
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34 | (define-ccl-program test-ccl-identity |
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35 | '(1 ((read r0) (loop (write-read-repeat r0))))) |
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36 | (condition-case nil |
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37 | (progn |
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38 | (funcall |
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39 | (if (fboundp 'ccl-vector-execute-on-string) |
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40 | 'ccl-vector-execute-on-string |
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41 | 'ccl-execute-on-string) |
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42 | 'test-ccl-identity |
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43 | (make-vector 9 nil) |
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44 | "") |
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45 | t) |
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46 | (error nil))) |
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47 | t) |
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48 | |
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49 | (eval-and-compile |
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50 | |
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51 | (static-if (featurep 'xemacs) |
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52 | (defadvice make-coding-system (before ccl-compat (name type &rest ad-subr-args) activate) |
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53 | (when (and (integerp type) |
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54 | (eq type 4) |
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55 | (characterp (ad-get-arg 2)) |
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56 | (stringp (ad-get-arg 3)) |
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57 | (consp (ad-get-arg 4)) |
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58 | (symbolp (car (ad-get-arg 4))) |
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59 | (symbolp (cdr (ad-get-arg 4)))) |
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60 | (setq type 'ccl) |
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61 | (setq ad-subr-args |
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62 | (list |
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63 | (ad-get-arg 3) |
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64 | (append |
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65 | (list |
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66 | 'mnemonic (char-to-string (ad-get-arg 2)) |
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67 | 'decode (symbol-value (car (ad-get-arg 4))) |
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68 | 'encode (symbol-value (cdr (ad-get-arg 4)))) |
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69 | (ad-get-arg 5))))))) |
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70 | |
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71 | (if (featurep 'xemacs) |
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72 | (defun make-ccl-coding-system (name mnemonic docstring decoder encoder) |
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73 | "\ |
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74 | Define a new CODING-SYSTEM by CCL programs DECODER and ENCODER. |
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75 | |
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76 | CODING-SYSTEM, DECODER and ENCODER must be symbol." |
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77 | (make-coding-system |
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78 | name 'ccl docstring |
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79 | (list 'mnemonic (char-to-string mnemonic) |
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80 | 'decode (symbol-value decoder) |
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81 | 'encode (symbol-value encoder)))) |
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82 | (defun make-ccl-coding-system |
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83 | (coding-system mnemonic docstring decoder encoder) |
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84 | "\ |
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85 | Define a new CODING-SYSTEM by CCL programs DECODER and ENCODER. |
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86 | |
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87 | CODING-SYSTEM, DECODER and ENCODER must be symbol." |
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88 | (when-broken ccl-accept-symbol-as-program |
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89 | (setq decoder (symbol-value decoder)) |
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90 | (setq encoder (symbol-value encoder))) |
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91 | (make-coding-system coding-system 4 mnemonic docstring |
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92 | (cons decoder encoder))) |
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93 | ) |
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94 | |
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95 | (when-broken ccl-accept-symbol-as-program |
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96 | |
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97 | (when (subrp (symbol-function 'ccl-execute)) |
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98 | (fset 'ccl-vector-program-execute |
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99 | (symbol-function 'ccl-execute)) |
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100 | (defun ccl-execute (ccl-prog reg) |
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101 | "\ |
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102 | Execute CCL-PROG with registers initialized by REGISTERS. |
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103 | If CCL-PROG is symbol, it is dereferenced." |
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104 | (ccl-vector-program-execute |
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105 | (if (symbolp ccl-prog) (symbol-value ccl-prog) ccl-prog) |
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106 | reg))) |
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107 | |
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108 | (when (subrp (symbol-function 'ccl-execute-on-string)) |
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109 | (fset 'ccl-vector-program-execute-on-string |
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110 | (symbol-function 'ccl-execute-on-string)) |
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111 | (defun ccl-execute-on-string (ccl-prog status string &optional contin) |
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112 | "\ |
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113 | Execute CCL-PROG with initial STATUS on STRING. |
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114 | If CCL-PROG is symbol, it is dereferenced." |
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115 | (ccl-vector-program-execute-on-string |
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116 | (if (symbolp ccl-prog) (symbol-value ccl-prog) ccl-prog) |
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117 | status string contin))) |
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118 | ) |
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119 | ) |
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120 | |
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121 | (eval-when-compile |
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122 | (define-ccl-program test-ccl-eof-block |
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123 | '(1 |
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124 | ((read r0) |
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125 | (write r0) |
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126 | (read r0)) |
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127 | (write "[EOF]"))) |
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128 | |
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129 | (make-ccl-coding-system |
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130 | 'test-ccl-eof-block-cs ?T "CCL_EOF_BLOCK tester" |
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131 | 'test-ccl-eof-block 'test-ccl-eof-block) |
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132 | ) |
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133 | |
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134 | (broken-facility ccl-execute-eof-block-on-encoding-null |
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135 | "Emacs forgets executing CCL_EOF_BLOCK with encoding on empty input. (Fixed on Emacs 20.4)" |
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136 | (equal (encode-coding-string "" 'test-ccl-eof-block-cs) "[EOF]")) |
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137 | |
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138 | (broken-facility ccl-execute-eof-block-on-encoding-some |
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139 | "Emacs forgets executing CCL_EOF_BLOCK with encoding on non-empty input. (Fixed on Emacs 20.3)" |
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140 | (equal (encode-coding-string "a" 'test-ccl-eof-block-cs) "a[EOF]")) |
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141 | |
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142 | (broken-facility ccl-execute-eof-block-on-decoding-null |
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143 | "Emacs forgets executing CCL_EOF_BLOCK with decoding on empty input. (Fixed on Emacs 20.4)" |
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144 | (equal (decode-coding-string "" 'test-ccl-eof-block-cs) "[EOF]")) |
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145 | |
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146 | (broken-facility ccl-execute-eof-block-on-decoding-some |
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147 | "Emacs forgets executing CCL_EOF_BLOCK with decoding on non-empty input. (Fixed on Emacs 20.4)" |
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148 | (equal (decode-coding-string "a" 'test-ccl-eof-block-cs) "a[EOF]")) |
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149 | |
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150 | (broken-facility ccl-execute-eof-block-on-encoding |
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151 | "Emacs may forget executing CCL_EOF_BLOCK with encoding." |
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152 | (not (or (broken-p 'ccl-execute-eof-block-on-encoding-null) |
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153 | (broken-p 'ccl-execute-eof-block-on-encoding-some))) |
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154 | t) |
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155 | |
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156 | (broken-facility ccl-execute-eof-block-on-decoding |
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157 | "Emacs may forget executing CCL_EOF_BLOCK with decoding." |
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158 | (not (or (broken-p 'ccl-execute-eof-block-on-decoding-null) |
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159 | (broken-p 'ccl-execute-eof-block-on-decoding-some))) |
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160 | t) |
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161 | |
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162 | (broken-facility ccl-execute-eof-block |
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163 | "Emacs may forget executing CCL_EOF_BLOCK." |
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164 | (not (or (broken-p 'ccl-execute-eof-block-on-encoding) |
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165 | (broken-p 'ccl-execute-eof-block-on-decoding))) |
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166 | t) |
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167 | |
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168 | |
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169 | ;;; @ end |
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170 | ;;; |
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171 | |
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172 | (require 'product) |
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173 | (product-provide (provide 'pccl-20) (require 'apel-ver)) |
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174 | |
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175 | ;;; pccl-20.el ends here |
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